Do an initial range check on the ppoll syscall's nfds argument, to avoid possible overflow in the calculation of the lock_user() size argument. The host kernel will later apply the rather lower limit based on RLIMIT_NOFILE as appropriate. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
11850 lines
366 KiB
C
11850 lines
366 KiB
C
/*
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* Linux syscalls
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define _ATFILE_SOURCE
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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#include "qemu/path.h"
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#include <elf.h>
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#include <endian.h>
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#include <grp.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <sys/wait.h>
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#include <sys/mount.h>
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#include <sys/file.h>
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#include <sys/fsuid.h>
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#include <sys/personality.h>
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#include <sys/prctl.h>
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#include <sys/resource.h>
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#include <sys/swap.h>
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#include <linux/capability.h>
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#include <sched.h>
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#ifdef __ia64__
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int __clone2(int (*fn)(void *), void *child_stack_base,
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size_t stack_size, int flags, void *arg, ...);
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#endif
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <sys/uio.h>
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#include <sys/poll.h>
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#include <sys/times.h>
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#include <sys/shm.h>
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#include <sys/sem.h>
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#include <sys/statfs.h>
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#include <utime.h>
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#include <sys/sysinfo.h>
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#include <sys/signalfd.h>
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//#include <sys/user.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
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#include <linux/wireless.h>
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#include <linux/icmp.h>
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#include "qemu-common.h"
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#ifdef CONFIG_TIMERFD
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#include <sys/timerfd.h>
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#endif
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#ifdef TARGET_GPROF
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#include <sys/gmon.h>
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#endif
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#ifdef CONFIG_EVENTFD
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#include <sys/eventfd.h>
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#endif
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#ifdef CONFIG_EPOLL
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#include <sys/epoll.h>
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#endif
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#ifdef CONFIG_ATTR
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#include "qemu/xattr.h"
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#endif
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#ifdef CONFIG_SENDFILE
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#include <sys/sendfile.h>
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#endif
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#define termios host_termios
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#define winsize host_winsize
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#define termio host_termio
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#define sgttyb host_sgttyb /* same as target */
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#define tchars host_tchars /* same as target */
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#define ltchars host_ltchars /* same as target */
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#include <linux/termios.h>
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#include <linux/unistd.h>
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#include <linux/cdrom.h>
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#include <linux/hdreg.h>
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#include <linux/soundcard.h>
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#include <linux/kd.h>
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#include <linux/mtio.h>
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#include <linux/fs.h>
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#if defined(CONFIG_FIEMAP)
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#include <linux/fiemap.h>
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#endif
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#include <linux/fb.h>
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#include <linux/vt.h>
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#include <linux/dm-ioctl.h>
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#include <linux/reboot.h>
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#include <linux/route.h>
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#include <linux/filter.h>
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#include <linux/blkpg.h>
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#include <netpacket/packet.h>
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#include <linux/netlink.h>
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#ifdef CONFIG_RTNETLINK
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#include <linux/rtnetlink.h>
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#include <linux/if_bridge.h>
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#endif
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#include <linux/audit.h>
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#include "linux_loop.h"
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#include "uname.h"
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#include "qemu.h"
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#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
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CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
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//#define DEBUG
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/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
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* once. This exercises the codepaths for restart.
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*/
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//#define DEBUG_ERESTARTSYS
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//#include <linux/msdos_fs.h>
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#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
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#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
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#undef _syscall0
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#undef _syscall1
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#undef _syscall2
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#undef _syscall3
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#undef _syscall4
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#undef _syscall5
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#undef _syscall6
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#define _syscall0(type,name) \
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static type name (void) \
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{ \
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return syscall(__NR_##name); \
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}
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#define _syscall1(type,name,type1,arg1) \
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static type name (type1 arg1) \
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{ \
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return syscall(__NR_##name, arg1); \
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}
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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static type name (type1 arg1,type2 arg2) \
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{ \
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return syscall(__NR_##name, arg1, arg2); \
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}
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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static type name (type1 arg1,type2 arg2,type3 arg3) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3); \
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}
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
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}
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
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}
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#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5,type6,arg6) \
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static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
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type6 arg6) \
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{ \
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return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
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}
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#define __NR_sys_uname __NR_uname
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#define __NR_sys_getcwd1 __NR_getcwd
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#define __NR_sys_getdents __NR_getdents
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#define __NR_sys_getdents64 __NR_getdents64
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#define __NR_sys_getpriority __NR_getpriority
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#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
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#define __NR_sys_syslog __NR_syslog
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#define __NR_sys_futex __NR_futex
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#define __NR_sys_inotify_init __NR_inotify_init
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#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
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#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
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#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
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defined(__s390x__)
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#define __NR__llseek __NR_lseek
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#endif
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/* Newer kernel ports have llseek() instead of _llseek() */
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#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
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#define TARGET_NR__llseek TARGET_NR_llseek
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#endif
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#ifdef __NR_gettid
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_syscall0(int, gettid)
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#else
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/* This is a replacement for the host gettid() and must return a host
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errno. */
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static int gettid(void) {
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return -ENOSYS;
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}
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#endif
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#if defined(TARGET_NR_getdents) && defined(__NR_getdents)
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_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
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#endif
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#if !defined(__NR_getdents) || \
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(defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
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_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
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#endif
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#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
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_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
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loff_t *, res, uint, wh);
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#endif
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_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
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_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
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#ifdef __NR_exit_group
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_syscall1(int,exit_group,int,error_code)
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#endif
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#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
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_syscall1(int,set_tid_address,int *,tidptr)
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#endif
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#if defined(TARGET_NR_futex) && defined(__NR_futex)
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_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
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const struct timespec *,timeout,int *,uaddr2,int,val3)
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#endif
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#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
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_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
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unsigned long *, user_mask_ptr);
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#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
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_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
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unsigned long *, user_mask_ptr);
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_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
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void *, arg);
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_syscall2(int, capget, struct __user_cap_header_struct *, header,
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struct __user_cap_data_struct *, data);
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_syscall2(int, capset, struct __user_cap_header_struct *, header,
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struct __user_cap_data_struct *, data);
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#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
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_syscall2(int, ioprio_get, int, which, int, who)
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#endif
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#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
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_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
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#endif
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|
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
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_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
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#endif
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|
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static bitmask_transtbl fcntl_flags_tbl[] = {
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{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
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{ TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
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{ TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
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{ TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
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{ TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
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{ TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
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{ TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
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{ TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
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{ TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
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{ TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
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{ TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
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{ TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
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{ TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
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#if defined(O_DIRECT)
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{ TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
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#endif
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#if defined(O_NOATIME)
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{ TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
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#endif
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#if defined(O_CLOEXEC)
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{ TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
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#endif
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#if defined(O_PATH)
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{ TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
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#endif
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/* Don't terminate the list prematurely on 64-bit host+guest. */
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#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
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{ TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
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#endif
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{ 0, 0, 0, 0 }
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};
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|
|
enum {
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QEMU_IFLA_BR_UNSPEC,
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|
QEMU_IFLA_BR_FORWARD_DELAY,
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|
QEMU_IFLA_BR_HELLO_TIME,
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|
QEMU_IFLA_BR_MAX_AGE,
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|
QEMU_IFLA_BR_AGEING_TIME,
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|
QEMU_IFLA_BR_STP_STATE,
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|
QEMU_IFLA_BR_PRIORITY,
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|
QEMU_IFLA_BR_VLAN_FILTERING,
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|
QEMU_IFLA_BR_VLAN_PROTOCOL,
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|
QEMU_IFLA_BR_GROUP_FWD_MASK,
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|
QEMU_IFLA_BR_ROOT_ID,
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|
QEMU_IFLA_BR_BRIDGE_ID,
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|
QEMU_IFLA_BR_ROOT_PORT,
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|
QEMU_IFLA_BR_ROOT_PATH_COST,
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|
QEMU_IFLA_BR_TOPOLOGY_CHANGE,
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|
QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
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|
QEMU_IFLA_BR_HELLO_TIMER,
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|
QEMU_IFLA_BR_TCN_TIMER,
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|
QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER,
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|
QEMU_IFLA_BR_GC_TIMER,
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|
QEMU_IFLA_BR_GROUP_ADDR,
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|
QEMU_IFLA_BR_FDB_FLUSH,
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|
QEMU_IFLA_BR_MCAST_ROUTER,
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|
QEMU_IFLA_BR_MCAST_SNOOPING,
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|
QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR,
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|
QEMU_IFLA_BR_MCAST_QUERIER,
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|
QEMU_IFLA_BR_MCAST_HASH_ELASTICITY,
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|
QEMU_IFLA_BR_MCAST_HASH_MAX,
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|
QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT,
|
|
QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT,
|
|
QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL,
|
|
QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL,
|
|
QEMU_IFLA_BR_MCAST_QUERIER_INTVL,
|
|
QEMU_IFLA_BR_MCAST_QUERY_INTVL,
|
|
QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
|
|
QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL,
|
|
QEMU_IFLA_BR_NF_CALL_IPTABLES,
|
|
QEMU_IFLA_BR_NF_CALL_IP6TABLES,
|
|
QEMU_IFLA_BR_NF_CALL_ARPTABLES,
|
|
QEMU_IFLA_BR_VLAN_DEFAULT_PVID,
|
|
QEMU_IFLA_BR_PAD,
|
|
QEMU_IFLA_BR_VLAN_STATS_ENABLED,
|
|
QEMU_IFLA_BR_MCAST_STATS_ENABLED,
|
|
QEMU___IFLA_BR_MAX,
|
|
};
|
|
|
|
enum {
|
|
QEMU_IFLA_UNSPEC,
|
|
QEMU_IFLA_ADDRESS,
|
|
QEMU_IFLA_BROADCAST,
|
|
QEMU_IFLA_IFNAME,
|
|
QEMU_IFLA_MTU,
|
|
QEMU_IFLA_LINK,
|
|
QEMU_IFLA_QDISC,
|
|
QEMU_IFLA_STATS,
|
|
QEMU_IFLA_COST,
|
|
QEMU_IFLA_PRIORITY,
|
|
QEMU_IFLA_MASTER,
|
|
QEMU_IFLA_WIRELESS,
|
|
QEMU_IFLA_PROTINFO,
|
|
QEMU_IFLA_TXQLEN,
|
|
QEMU_IFLA_MAP,
|
|
QEMU_IFLA_WEIGHT,
|
|
QEMU_IFLA_OPERSTATE,
|
|
QEMU_IFLA_LINKMODE,
|
|
QEMU_IFLA_LINKINFO,
|
|
QEMU_IFLA_NET_NS_PID,
|
|
QEMU_IFLA_IFALIAS,
|
|
QEMU_IFLA_NUM_VF,
|
|
QEMU_IFLA_VFINFO_LIST,
|
|
QEMU_IFLA_STATS64,
|
|
QEMU_IFLA_VF_PORTS,
|
|
QEMU_IFLA_PORT_SELF,
|
|
QEMU_IFLA_AF_SPEC,
|
|
QEMU_IFLA_GROUP,
|
|
QEMU_IFLA_NET_NS_FD,
|
|
QEMU_IFLA_EXT_MASK,
|
|
QEMU_IFLA_PROMISCUITY,
|
|
QEMU_IFLA_NUM_TX_QUEUES,
|
|
QEMU_IFLA_NUM_RX_QUEUES,
|
|
QEMU_IFLA_CARRIER,
|
|
QEMU_IFLA_PHYS_PORT_ID,
|
|
QEMU_IFLA_CARRIER_CHANGES,
|
|
QEMU_IFLA_PHYS_SWITCH_ID,
|
|
QEMU_IFLA_LINK_NETNSID,
|
|
QEMU_IFLA_PHYS_PORT_NAME,
|
|
QEMU_IFLA_PROTO_DOWN,
|
|
QEMU_IFLA_GSO_MAX_SEGS,
|
|
QEMU_IFLA_GSO_MAX_SIZE,
|
|
QEMU_IFLA_PAD,
|
|
QEMU_IFLA_XDP,
|
|
QEMU___IFLA_MAX
|
|
};
|
|
|
|
enum {
|
|
QEMU_IFLA_BRPORT_UNSPEC,
|
|
QEMU_IFLA_BRPORT_STATE,
|
|
QEMU_IFLA_BRPORT_PRIORITY,
|
|
QEMU_IFLA_BRPORT_COST,
|
|
QEMU_IFLA_BRPORT_MODE,
|
|
QEMU_IFLA_BRPORT_GUARD,
|
|
QEMU_IFLA_BRPORT_PROTECT,
|
|
QEMU_IFLA_BRPORT_FAST_LEAVE,
|
|
QEMU_IFLA_BRPORT_LEARNING,
|
|
QEMU_IFLA_BRPORT_UNICAST_FLOOD,
|
|
QEMU_IFLA_BRPORT_PROXYARP,
|
|
QEMU_IFLA_BRPORT_LEARNING_SYNC,
|
|
QEMU_IFLA_BRPORT_PROXYARP_WIFI,
|
|
QEMU_IFLA_BRPORT_ROOT_ID,
|
|
QEMU_IFLA_BRPORT_BRIDGE_ID,
|
|
QEMU_IFLA_BRPORT_DESIGNATED_PORT,
|
|
QEMU_IFLA_BRPORT_DESIGNATED_COST,
|
|
QEMU_IFLA_BRPORT_ID,
|
|
QEMU_IFLA_BRPORT_NO,
|
|
QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
|
|
QEMU_IFLA_BRPORT_CONFIG_PENDING,
|
|
QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER,
|
|
QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER,
|
|
QEMU_IFLA_BRPORT_HOLD_TIMER,
|
|
QEMU_IFLA_BRPORT_FLUSH,
|
|
QEMU_IFLA_BRPORT_MULTICAST_ROUTER,
|
|
QEMU_IFLA_BRPORT_PAD,
|
|
QEMU___IFLA_BRPORT_MAX
|
|
};
|
|
|
|
enum {
|
|
QEMU_IFLA_INFO_UNSPEC,
|
|
QEMU_IFLA_INFO_KIND,
|
|
QEMU_IFLA_INFO_DATA,
|
|
QEMU_IFLA_INFO_XSTATS,
|
|
QEMU_IFLA_INFO_SLAVE_KIND,
|
|
QEMU_IFLA_INFO_SLAVE_DATA,
|
|
QEMU___IFLA_INFO_MAX,
|
|
};
|
|
|
|
enum {
|
|
QEMU_IFLA_INET_UNSPEC,
|
|
QEMU_IFLA_INET_CONF,
|
|
QEMU___IFLA_INET_MAX,
|
|
};
|
|
|
|
enum {
|
|
QEMU_IFLA_INET6_UNSPEC,
|
|
QEMU_IFLA_INET6_FLAGS,
|
|
QEMU_IFLA_INET6_CONF,
|
|
QEMU_IFLA_INET6_STATS,
|
|
QEMU_IFLA_INET6_MCAST,
|
|
QEMU_IFLA_INET6_CACHEINFO,
|
|
QEMU_IFLA_INET6_ICMP6STATS,
|
|
QEMU_IFLA_INET6_TOKEN,
|
|
QEMU_IFLA_INET6_ADDR_GEN_MODE,
|
|
QEMU___IFLA_INET6_MAX
|
|
};
|
|
|
|
typedef abi_long (*TargetFdDataFunc)(void *, size_t);
|
|
typedef abi_long (*TargetFdAddrFunc)(void *, abi_ulong, socklen_t);
|
|
typedef struct TargetFdTrans {
|
|
TargetFdDataFunc host_to_target_data;
|
|
TargetFdDataFunc target_to_host_data;
|
|
TargetFdAddrFunc target_to_host_addr;
|
|
} TargetFdTrans;
|
|
|
|
static TargetFdTrans **target_fd_trans;
|
|
|
|
static unsigned int target_fd_max;
|
|
|
|
static TargetFdDataFunc fd_trans_target_to_host_data(int fd)
|
|
{
|
|
if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
|
|
return target_fd_trans[fd]->target_to_host_data;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static TargetFdDataFunc fd_trans_host_to_target_data(int fd)
|
|
{
|
|
if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
|
|
return target_fd_trans[fd]->host_to_target_data;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static TargetFdAddrFunc fd_trans_target_to_host_addr(int fd)
|
|
{
|
|
if (fd >= 0 && fd < target_fd_max && target_fd_trans[fd]) {
|
|
return target_fd_trans[fd]->target_to_host_addr;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void fd_trans_register(int fd, TargetFdTrans *trans)
|
|
{
|
|
unsigned int oldmax;
|
|
|
|
if (fd >= target_fd_max) {
|
|
oldmax = target_fd_max;
|
|
target_fd_max = ((fd >> 6) + 1) << 6; /* by slice of 64 entries */
|
|
target_fd_trans = g_renew(TargetFdTrans *,
|
|
target_fd_trans, target_fd_max);
|
|
memset((void *)(target_fd_trans + oldmax), 0,
|
|
(target_fd_max - oldmax) * sizeof(TargetFdTrans *));
|
|
}
|
|
target_fd_trans[fd] = trans;
|
|
}
|
|
|
|
static void fd_trans_unregister(int fd)
|
|
{
|
|
if (fd >= 0 && fd < target_fd_max) {
|
|
target_fd_trans[fd] = NULL;
|
|
}
|
|
}
|
|
|
|
static void fd_trans_dup(int oldfd, int newfd)
|
|
{
|
|
fd_trans_unregister(newfd);
|
|
if (oldfd < target_fd_max && target_fd_trans[oldfd]) {
|
|
fd_trans_register(newfd, target_fd_trans[oldfd]);
|
|
}
|
|
}
|
|
|
|
static int sys_getcwd1(char *buf, size_t size)
|
|
{
|
|
if (getcwd(buf, size) == NULL) {
|
|
/* getcwd() sets errno */
|
|
return (-1);
|
|
}
|
|
return strlen(buf)+1;
|
|
}
|
|
|
|
#ifdef TARGET_NR_utimensat
|
|
#if defined(__NR_utimensat)
|
|
#define __NR_sys_utimensat __NR_utimensat
|
|
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
|
|
const struct timespec *,tsp,int,flags)
|
|
#else
|
|
static int sys_utimensat(int dirfd, const char *pathname,
|
|
const struct timespec times[2], int flags)
|
|
{
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
#endif
|
|
#endif /* TARGET_NR_utimensat */
|
|
|
|
#ifdef CONFIG_INOTIFY
|
|
#include <sys/inotify.h>
|
|
|
|
#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
|
|
static int sys_inotify_init(void)
|
|
{
|
|
return (inotify_init());
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
|
|
static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
|
|
{
|
|
return (inotify_add_watch(fd, pathname, mask));
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
|
|
static int sys_inotify_rm_watch(int fd, int32_t wd)
|
|
{
|
|
return (inotify_rm_watch(fd, wd));
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_INOTIFY1
|
|
#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
|
|
static int sys_inotify_init1(int flags)
|
|
{
|
|
return (inotify_init1(flags));
|
|
}
|
|
#endif
|
|
#endif
|
|
#else
|
|
/* Userspace can usually survive runtime without inotify */
|
|
#undef TARGET_NR_inotify_init
|
|
#undef TARGET_NR_inotify_init1
|
|
#undef TARGET_NR_inotify_add_watch
|
|
#undef TARGET_NR_inotify_rm_watch
|
|
#endif /* CONFIG_INOTIFY */
|
|
|
|
#if defined(TARGET_NR_prlimit64)
|
|
#ifndef __NR_prlimit64
|
|
# define __NR_prlimit64 -1
|
|
#endif
|
|
#define __NR_sys_prlimit64 __NR_prlimit64
|
|
/* The glibc rlimit structure may not be that used by the underlying syscall */
|
|
struct host_rlimit64 {
|
|
uint64_t rlim_cur;
|
|
uint64_t rlim_max;
|
|
};
|
|
_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
|
|
const struct host_rlimit64 *, new_limit,
|
|
struct host_rlimit64 *, old_limit)
|
|
#endif
|
|
|
|
|
|
#if defined(TARGET_NR_timer_create)
|
|
/* Maxiumum of 32 active POSIX timers allowed at any one time. */
|
|
static timer_t g_posix_timers[32] = { 0, } ;
|
|
|
|
static inline int next_free_host_timer(void)
|
|
{
|
|
int k ;
|
|
/* FIXME: Does finding the next free slot require a lock? */
|
|
for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
|
|
if (g_posix_timers[k] == 0) {
|
|
g_posix_timers[k] = (timer_t) 1;
|
|
return k;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
|
|
#ifdef TARGET_ARM
|
|
static inline int regpairs_aligned(void *cpu_env) {
|
|
return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
|
|
}
|
|
#elif defined(TARGET_MIPS)
|
|
static inline int regpairs_aligned(void *cpu_env) { return 1; }
|
|
#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
|
|
/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
|
|
* of registers which translates to the same as ARM/MIPS, because we start with
|
|
* r3 as arg1 */
|
|
static inline int regpairs_aligned(void *cpu_env) { return 1; }
|
|
#else
|
|
static inline int regpairs_aligned(void *cpu_env) { return 0; }
|
|
#endif
|
|
|
|
#define ERRNO_TABLE_SIZE 1200
|
|
|
|
/* target_to_host_errno_table[] is initialized from
|
|
* host_to_target_errno_table[] in syscall_init(). */
|
|
static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
|
|
};
|
|
|
|
/*
|
|
* This list is the union of errno values overridden in asm-<arch>/errno.h
|
|
* minus the errnos that are not actually generic to all archs.
|
|
*/
|
|
static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
|
|
[EAGAIN] = TARGET_EAGAIN,
|
|
[EIDRM] = TARGET_EIDRM,
|
|
[ECHRNG] = TARGET_ECHRNG,
|
|
[EL2NSYNC] = TARGET_EL2NSYNC,
|
|
[EL3HLT] = TARGET_EL3HLT,
|
|
[EL3RST] = TARGET_EL3RST,
|
|
[ELNRNG] = TARGET_ELNRNG,
|
|
[EUNATCH] = TARGET_EUNATCH,
|
|
[ENOCSI] = TARGET_ENOCSI,
|
|
[EL2HLT] = TARGET_EL2HLT,
|
|
[EDEADLK] = TARGET_EDEADLK,
|
|
[ENOLCK] = TARGET_ENOLCK,
|
|
[EBADE] = TARGET_EBADE,
|
|
[EBADR] = TARGET_EBADR,
|
|
[EXFULL] = TARGET_EXFULL,
|
|
[ENOANO] = TARGET_ENOANO,
|
|
[EBADRQC] = TARGET_EBADRQC,
|
|
[EBADSLT] = TARGET_EBADSLT,
|
|
[EBFONT] = TARGET_EBFONT,
|
|
[ENOSTR] = TARGET_ENOSTR,
|
|
[ENODATA] = TARGET_ENODATA,
|
|
[ETIME] = TARGET_ETIME,
|
|
[ENOSR] = TARGET_ENOSR,
|
|
[ENONET] = TARGET_ENONET,
|
|
[ENOPKG] = TARGET_ENOPKG,
|
|
[EREMOTE] = TARGET_EREMOTE,
|
|
[ENOLINK] = TARGET_ENOLINK,
|
|
[EADV] = TARGET_EADV,
|
|
[ESRMNT] = TARGET_ESRMNT,
|
|
[ECOMM] = TARGET_ECOMM,
|
|
[EPROTO] = TARGET_EPROTO,
|
|
[EDOTDOT] = TARGET_EDOTDOT,
|
|
[EMULTIHOP] = TARGET_EMULTIHOP,
|
|
[EBADMSG] = TARGET_EBADMSG,
|
|
[ENAMETOOLONG] = TARGET_ENAMETOOLONG,
|
|
[EOVERFLOW] = TARGET_EOVERFLOW,
|
|
[ENOTUNIQ] = TARGET_ENOTUNIQ,
|
|
[EBADFD] = TARGET_EBADFD,
|
|
[EREMCHG] = TARGET_EREMCHG,
|
|
[ELIBACC] = TARGET_ELIBACC,
|
|
[ELIBBAD] = TARGET_ELIBBAD,
|
|
[ELIBSCN] = TARGET_ELIBSCN,
|
|
[ELIBMAX] = TARGET_ELIBMAX,
|
|
[ELIBEXEC] = TARGET_ELIBEXEC,
|
|
[EILSEQ] = TARGET_EILSEQ,
|
|
[ENOSYS] = TARGET_ENOSYS,
|
|
[ELOOP] = TARGET_ELOOP,
|
|
[ERESTART] = TARGET_ERESTART,
|
|
[ESTRPIPE] = TARGET_ESTRPIPE,
|
|
[ENOTEMPTY] = TARGET_ENOTEMPTY,
|
|
[EUSERS] = TARGET_EUSERS,
|
|
[ENOTSOCK] = TARGET_ENOTSOCK,
|
|
[EDESTADDRREQ] = TARGET_EDESTADDRREQ,
|
|
[EMSGSIZE] = TARGET_EMSGSIZE,
|
|
[EPROTOTYPE] = TARGET_EPROTOTYPE,
|
|
[ENOPROTOOPT] = TARGET_ENOPROTOOPT,
|
|
[EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
|
|
[ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
|
|
[EOPNOTSUPP] = TARGET_EOPNOTSUPP,
|
|
[EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
|
|
[EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
|
|
[EADDRINUSE] = TARGET_EADDRINUSE,
|
|
[EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
|
|
[ENETDOWN] = TARGET_ENETDOWN,
|
|
[ENETUNREACH] = TARGET_ENETUNREACH,
|
|
[ENETRESET] = TARGET_ENETRESET,
|
|
[ECONNABORTED] = TARGET_ECONNABORTED,
|
|
[ECONNRESET] = TARGET_ECONNRESET,
|
|
[ENOBUFS] = TARGET_ENOBUFS,
|
|
[EISCONN] = TARGET_EISCONN,
|
|
[ENOTCONN] = TARGET_ENOTCONN,
|
|
[EUCLEAN] = TARGET_EUCLEAN,
|
|
[ENOTNAM] = TARGET_ENOTNAM,
|
|
[ENAVAIL] = TARGET_ENAVAIL,
|
|
[EISNAM] = TARGET_EISNAM,
|
|
[EREMOTEIO] = TARGET_EREMOTEIO,
|
|
[ESHUTDOWN] = TARGET_ESHUTDOWN,
|
|
[ETOOMANYREFS] = TARGET_ETOOMANYREFS,
|
|
[ETIMEDOUT] = TARGET_ETIMEDOUT,
|
|
[ECONNREFUSED] = TARGET_ECONNREFUSED,
|
|
[EHOSTDOWN] = TARGET_EHOSTDOWN,
|
|
[EHOSTUNREACH] = TARGET_EHOSTUNREACH,
|
|
[EALREADY] = TARGET_EALREADY,
|
|
[EINPROGRESS] = TARGET_EINPROGRESS,
|
|
[ESTALE] = TARGET_ESTALE,
|
|
[ECANCELED] = TARGET_ECANCELED,
|
|
[ENOMEDIUM] = TARGET_ENOMEDIUM,
|
|
[EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
|
|
#ifdef ENOKEY
|
|
[ENOKEY] = TARGET_ENOKEY,
|
|
#endif
|
|
#ifdef EKEYEXPIRED
|
|
[EKEYEXPIRED] = TARGET_EKEYEXPIRED,
|
|
#endif
|
|
#ifdef EKEYREVOKED
|
|
[EKEYREVOKED] = TARGET_EKEYREVOKED,
|
|
#endif
|
|
#ifdef EKEYREJECTED
|
|
[EKEYREJECTED] = TARGET_EKEYREJECTED,
|
|
#endif
|
|
#ifdef EOWNERDEAD
|
|
[EOWNERDEAD] = TARGET_EOWNERDEAD,
|
|
#endif
|
|
#ifdef ENOTRECOVERABLE
|
|
[ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
|
|
#endif
|
|
};
|
|
|
|
static inline int host_to_target_errno(int err)
|
|
{
|
|
if (err >= 0 && err < ERRNO_TABLE_SIZE &&
|
|
host_to_target_errno_table[err]) {
|
|
return host_to_target_errno_table[err];
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static inline int target_to_host_errno(int err)
|
|
{
|
|
if (err >= 0 && err < ERRNO_TABLE_SIZE &&
|
|
target_to_host_errno_table[err]) {
|
|
return target_to_host_errno_table[err];
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static inline abi_long get_errno(abi_long ret)
|
|
{
|
|
if (ret == -1)
|
|
return -host_to_target_errno(errno);
|
|
else
|
|
return ret;
|
|
}
|
|
|
|
static inline int is_error(abi_long ret)
|
|
{
|
|
return (abi_ulong)ret >= (abi_ulong)(-4096);
|
|
}
|
|
|
|
const char *target_strerror(int err)
|
|
{
|
|
if (err == TARGET_ERESTARTSYS) {
|
|
return "To be restarted";
|
|
}
|
|
if (err == TARGET_QEMU_ESIGRETURN) {
|
|
return "Successful exit from sigreturn";
|
|
}
|
|
|
|
if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
|
|
return NULL;
|
|
}
|
|
return strerror(target_to_host_errno(err));
|
|
}
|
|
|
|
#define safe_syscall0(type, name) \
|
|
static type safe_##name(void) \
|
|
{ \
|
|
return safe_syscall(__NR_##name); \
|
|
}
|
|
|
|
#define safe_syscall1(type, name, type1, arg1) \
|
|
static type safe_##name(type1 arg1) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1); \
|
|
}
|
|
|
|
#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
|
|
static type safe_##name(type1 arg1, type2 arg2) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2); \
|
|
}
|
|
|
|
#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3); \
|
|
}
|
|
|
|
#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
|
|
}
|
|
|
|
#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4, type5, arg5) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
|
type5 arg5) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
|
|
}
|
|
|
|
#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
|
|
type4, arg4, type5, arg5, type6, arg6) \
|
|
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
|
|
type5 arg5, type6 arg6) \
|
|
{ \
|
|
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
|
|
}
|
|
|
|
safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
|
|
safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
|
|
safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
|
|
int, flags, mode_t, mode)
|
|
safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
|
|
struct rusage *, rusage)
|
|
safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
|
|
int, options, struct rusage *, rusage)
|
|
safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
|
|
safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
|
|
fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
|
|
safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
|
|
struct timespec *, tsp, const sigset_t *, sigmask,
|
|
size_t, sigsetsize)
|
|
safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
|
|
int, maxevents, int, timeout, const sigset_t *, sigmask,
|
|
size_t, sigsetsize)
|
|
safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
|
|
const struct timespec *,timeout,int *,uaddr2,int,val3)
|
|
safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
|
|
safe_syscall2(int, kill, pid_t, pid, int, sig)
|
|
safe_syscall2(int, tkill, int, tid, int, sig)
|
|
safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
|
|
safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
|
|
safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
|
|
safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
|
|
socklen_t, addrlen)
|
|
safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
|
|
int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
|
|
safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
|
|
int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
|
|
safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
|
|
safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
|
|
safe_syscall2(int, flock, int, fd, int, operation)
|
|
safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
|
|
const struct timespec *, uts, size_t, sigsetsize)
|
|
safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
|
|
int, flags)
|
|
safe_syscall2(int, nanosleep, const struct timespec *, req,
|
|
struct timespec *, rem)
|
|
#ifdef TARGET_NR_clock_nanosleep
|
|
safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
|
|
const struct timespec *, req, struct timespec *, rem)
|
|
#endif
|
|
#ifdef __NR_msgsnd
|
|
safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
|
|
int, flags)
|
|
safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
|
|
long, msgtype, int, flags)
|
|
safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
|
|
unsigned, nsops, const struct timespec *, timeout)
|
|
#else
|
|
/* This host kernel architecture uses a single ipc syscall; fake up
|
|
* wrappers for the sub-operations to hide this implementation detail.
|
|
* Annoyingly we can't include linux/ipc.h to get the constant definitions
|
|
* for the call parameter because some structs in there conflict with the
|
|
* sys/ipc.h ones. So we just define them here, and rely on them being
|
|
* the same for all host architectures.
|
|
*/
|
|
#define Q_SEMTIMEDOP 4
|
|
#define Q_MSGSND 11
|
|
#define Q_MSGRCV 12
|
|
#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
|
|
|
|
safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
|
|
void *, ptr, long, fifth)
|
|
static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
|
|
{
|
|
return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
|
|
}
|
|
static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
|
|
{
|
|
return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
|
|
}
|
|
static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
|
|
const struct timespec *timeout)
|
|
{
|
|
return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
|
|
(long)timeout);
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
|
|
safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
|
|
size_t, len, unsigned, prio, const struct timespec *, timeout)
|
|
safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
|
|
size_t, len, unsigned *, prio, const struct timespec *, timeout)
|
|
#endif
|
|
/* We do ioctl like this rather than via safe_syscall3 to preserve the
|
|
* "third argument might be integer or pointer or not present" behaviour of
|
|
* the libc function.
|
|
*/
|
|
#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
|
|
/* Similarly for fcntl. Note that callers must always:
|
|
* pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
|
|
* use the flock64 struct rather than unsuffixed flock
|
|
* This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
|
|
*/
|
|
#ifdef __NR_fcntl64
|
|
#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
|
|
#else
|
|
#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
|
|
#endif
|
|
|
|
static inline int host_to_target_sock_type(int host_type)
|
|
{
|
|
int target_type;
|
|
|
|
switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
|
|
case SOCK_DGRAM:
|
|
target_type = TARGET_SOCK_DGRAM;
|
|
break;
|
|
case SOCK_STREAM:
|
|
target_type = TARGET_SOCK_STREAM;
|
|
break;
|
|
default:
|
|
target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
|
|
break;
|
|
}
|
|
|
|
#if defined(SOCK_CLOEXEC)
|
|
if (host_type & SOCK_CLOEXEC) {
|
|
target_type |= TARGET_SOCK_CLOEXEC;
|
|
}
|
|
#endif
|
|
|
|
#if defined(SOCK_NONBLOCK)
|
|
if (host_type & SOCK_NONBLOCK) {
|
|
target_type |= TARGET_SOCK_NONBLOCK;
|
|
}
|
|
#endif
|
|
|
|
return target_type;
|
|
}
|
|
|
|
static abi_ulong target_brk;
|
|
static abi_ulong target_original_brk;
|
|
static abi_ulong brk_page;
|
|
|
|
void target_set_brk(abi_ulong new_brk)
|
|
{
|
|
target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
|
|
brk_page = HOST_PAGE_ALIGN(target_brk);
|
|
}
|
|
|
|
//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
|
|
#define DEBUGF_BRK(message, args...)
|
|
|
|
/* do_brk() must return target values and target errnos. */
|
|
abi_long do_brk(abi_ulong new_brk)
|
|
{
|
|
abi_long mapped_addr;
|
|
abi_ulong new_alloc_size;
|
|
|
|
DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
|
|
|
|
if (!new_brk) {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
|
|
return target_brk;
|
|
}
|
|
if (new_brk < target_original_brk) {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
|
|
target_brk);
|
|
return target_brk;
|
|
}
|
|
|
|
/* If the new brk is less than the highest page reserved to the
|
|
* target heap allocation, set it and we're almost done... */
|
|
if (new_brk <= brk_page) {
|
|
/* Heap contents are initialized to zero, as for anonymous
|
|
* mapped pages. */
|
|
if (new_brk > target_brk) {
|
|
memset(g2h(target_brk), 0, new_brk - target_brk);
|
|
}
|
|
target_brk = new_brk;
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
|
|
return target_brk;
|
|
}
|
|
|
|
/* We need to allocate more memory after the brk... Note that
|
|
* we don't use MAP_FIXED because that will map over the top of
|
|
* any existing mapping (like the one with the host libc or qemu
|
|
* itself); instead we treat "mapped but at wrong address" as
|
|
* a failure and unmap again.
|
|
*/
|
|
new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
|
|
mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANON|MAP_PRIVATE, 0, 0));
|
|
|
|
if (mapped_addr == brk_page) {
|
|
/* Heap contents are initialized to zero, as for anonymous
|
|
* mapped pages. Technically the new pages are already
|
|
* initialized to zero since they *are* anonymous mapped
|
|
* pages, however we have to take care with the contents that
|
|
* come from the remaining part of the previous page: it may
|
|
* contains garbage data due to a previous heap usage (grown
|
|
* then shrunken). */
|
|
memset(g2h(target_brk), 0, brk_page - target_brk);
|
|
|
|
target_brk = new_brk;
|
|
brk_page = HOST_PAGE_ALIGN(target_brk);
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
|
|
target_brk);
|
|
return target_brk;
|
|
} else if (mapped_addr != -1) {
|
|
/* Mapped but at wrong address, meaning there wasn't actually
|
|
* enough space for this brk.
|
|
*/
|
|
target_munmap(mapped_addr, new_alloc_size);
|
|
mapped_addr = -1;
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
|
|
}
|
|
else {
|
|
DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
|
|
}
|
|
|
|
#if defined(TARGET_ALPHA)
|
|
/* We (partially) emulate OSF/1 on Alpha, which requires we
|
|
return a proper errno, not an unchanged brk value. */
|
|
return -TARGET_ENOMEM;
|
|
#endif
|
|
/* For everything else, return the previous break. */
|
|
return target_brk;
|
|
}
|
|
|
|
static inline abi_long copy_from_user_fdset(fd_set *fds,
|
|
abi_ulong target_fds_addr,
|
|
int n)
|
|
{
|
|
int i, nw, j, k;
|
|
abi_ulong b, *target_fds;
|
|
|
|
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
|
|
if (!(target_fds = lock_user(VERIFY_READ,
|
|
target_fds_addr,
|
|
sizeof(abi_ulong) * nw,
|
|
1)))
|
|
return -TARGET_EFAULT;
|
|
|
|
FD_ZERO(fds);
|
|
k = 0;
|
|
for (i = 0; i < nw; i++) {
|
|
/* grab the abi_ulong */
|
|
__get_user(b, &target_fds[i]);
|
|
for (j = 0; j < TARGET_ABI_BITS; j++) {
|
|
/* check the bit inside the abi_ulong */
|
|
if ((b >> j) & 1)
|
|
FD_SET(k, fds);
|
|
k++;
|
|
}
|
|
}
|
|
|
|
unlock_user(target_fds, target_fds_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
|
|
abi_ulong target_fds_addr,
|
|
int n)
|
|
{
|
|
if (target_fds_addr) {
|
|
if (copy_from_user_fdset(fds, target_fds_addr, n))
|
|
return -TARGET_EFAULT;
|
|
*fds_ptr = fds;
|
|
} else {
|
|
*fds_ptr = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
|
|
const fd_set *fds,
|
|
int n)
|
|
{
|
|
int i, nw, j, k;
|
|
abi_long v;
|
|
abi_ulong *target_fds;
|
|
|
|
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
|
|
if (!(target_fds = lock_user(VERIFY_WRITE,
|
|
target_fds_addr,
|
|
sizeof(abi_ulong) * nw,
|
|
0)))
|
|
return -TARGET_EFAULT;
|
|
|
|
k = 0;
|
|
for (i = 0; i < nw; i++) {
|
|
v = 0;
|
|
for (j = 0; j < TARGET_ABI_BITS; j++) {
|
|
v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
|
|
k++;
|
|
}
|
|
__put_user(v, &target_fds[i]);
|
|
}
|
|
|
|
unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(__alpha__)
|
|
#define HOST_HZ 1024
|
|
#else
|
|
#define HOST_HZ 100
|
|
#endif
|
|
|
|
static inline abi_long host_to_target_clock_t(long ticks)
|
|
{
|
|
#if HOST_HZ == TARGET_HZ
|
|
return ticks;
|
|
#else
|
|
return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
|
|
#endif
|
|
}
|
|
|
|
static inline abi_long host_to_target_rusage(abi_ulong target_addr,
|
|
const struct rusage *rusage)
|
|
{
|
|
struct target_rusage *target_rusage;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
|
|
target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
|
|
target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
|
|
target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
|
|
target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
|
|
target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
|
|
target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
|
|
target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
|
|
target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
|
|
target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
|
|
target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
|
|
target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
|
|
target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
|
|
target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
|
|
target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
|
|
target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
|
|
target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
|
|
target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
|
|
unlock_user_struct(target_rusage, target_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
|
|
{
|
|
abi_ulong target_rlim_swap;
|
|
rlim_t result;
|
|
|
|
target_rlim_swap = tswapal(target_rlim);
|
|
if (target_rlim_swap == TARGET_RLIM_INFINITY)
|
|
return RLIM_INFINITY;
|
|
|
|
result = target_rlim_swap;
|
|
if (target_rlim_swap != (rlim_t)result)
|
|
return RLIM_INFINITY;
|
|
|
|
return result;
|
|
}
|
|
|
|
static inline abi_ulong host_to_target_rlim(rlim_t rlim)
|
|
{
|
|
abi_ulong target_rlim_swap;
|
|
abi_ulong result;
|
|
|
|
if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
|
|
target_rlim_swap = TARGET_RLIM_INFINITY;
|
|
else
|
|
target_rlim_swap = rlim;
|
|
result = tswapal(target_rlim_swap);
|
|
|
|
return result;
|
|
}
|
|
|
|
static inline int target_to_host_resource(int code)
|
|
{
|
|
switch (code) {
|
|
case TARGET_RLIMIT_AS:
|
|
return RLIMIT_AS;
|
|
case TARGET_RLIMIT_CORE:
|
|
return RLIMIT_CORE;
|
|
case TARGET_RLIMIT_CPU:
|
|
return RLIMIT_CPU;
|
|
case TARGET_RLIMIT_DATA:
|
|
return RLIMIT_DATA;
|
|
case TARGET_RLIMIT_FSIZE:
|
|
return RLIMIT_FSIZE;
|
|
case TARGET_RLIMIT_LOCKS:
|
|
return RLIMIT_LOCKS;
|
|
case TARGET_RLIMIT_MEMLOCK:
|
|
return RLIMIT_MEMLOCK;
|
|
case TARGET_RLIMIT_MSGQUEUE:
|
|
return RLIMIT_MSGQUEUE;
|
|
case TARGET_RLIMIT_NICE:
|
|
return RLIMIT_NICE;
|
|
case TARGET_RLIMIT_NOFILE:
|
|
return RLIMIT_NOFILE;
|
|
case TARGET_RLIMIT_NPROC:
|
|
return RLIMIT_NPROC;
|
|
case TARGET_RLIMIT_RSS:
|
|
return RLIMIT_RSS;
|
|
case TARGET_RLIMIT_RTPRIO:
|
|
return RLIMIT_RTPRIO;
|
|
case TARGET_RLIMIT_SIGPENDING:
|
|
return RLIMIT_SIGPENDING;
|
|
case TARGET_RLIMIT_STACK:
|
|
return RLIMIT_STACK;
|
|
default:
|
|
return code;
|
|
}
|
|
}
|
|
|
|
static inline abi_long copy_from_user_timeval(struct timeval *tv,
|
|
abi_ulong target_tv_addr)
|
|
{
|
|
struct target_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
|
|
__get_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__get_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
|
|
const struct timeval *tv)
|
|
{
|
|
struct target_timeval *target_tv;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
|
|
__put_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__put_user(tv->tv_usec, &target_tv->tv_usec);
|
|
|
|
unlock_user_struct(target_tv, target_tv_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_from_user_timezone(struct timezone *tz,
|
|
abi_ulong target_tz_addr)
|
|
{
|
|
struct target_timezone *target_tz;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
|
|
__get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
|
|
|
|
unlock_user_struct(target_tz, target_tz_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
|
|
#include <mqueue.h>
|
|
|
|
static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
|
|
abi_ulong target_mq_attr_addr)
|
|
{
|
|
struct target_mq_attr *target_mq_attr;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_mq_attr,
|
|
target_mq_attr_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
|
|
__get_user(attr->mq_flags, &target_mq_attr->mq_flags);
|
|
__get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
|
|
__get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
|
|
__get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
|
|
|
|
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
|
|
const struct mq_attr *attr)
|
|
{
|
|
struct target_mq_attr *target_mq_attr;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
|
|
target_mq_attr_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
|
|
__put_user(attr->mq_flags, &target_mq_attr->mq_flags);
|
|
__put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
|
|
__put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
|
|
__put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
|
|
|
|
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
|
|
/* do_select() must return target values and target errnos. */
|
|
static abi_long do_select(int n,
|
|
abi_ulong rfd_addr, abi_ulong wfd_addr,
|
|
abi_ulong efd_addr, abi_ulong target_tv_addr)
|
|
{
|
|
fd_set rfds, wfds, efds;
|
|
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
|
|
struct timeval tv;
|
|
struct timespec ts, *ts_ptr;
|
|
abi_long ret;
|
|
|
|
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
if (target_tv_addr) {
|
|
if (copy_from_user_timeval(&tv, target_tv_addr))
|
|
return -TARGET_EFAULT;
|
|
ts.tv_sec = tv.tv_sec;
|
|
ts.tv_nsec = tv.tv_usec * 1000;
|
|
ts_ptr = &ts;
|
|
} else {
|
|
ts_ptr = NULL;
|
|
}
|
|
|
|
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
|
|
ts_ptr, NULL));
|
|
|
|
if (!is_error(ret)) {
|
|
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
|
|
return -TARGET_EFAULT;
|
|
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
|
|
return -TARGET_EFAULT;
|
|
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
|
|
return -TARGET_EFAULT;
|
|
|
|
if (target_tv_addr) {
|
|
tv.tv_sec = ts.tv_sec;
|
|
tv.tv_usec = ts.tv_nsec / 1000;
|
|
if (copy_to_user_timeval(target_tv_addr, &tv)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static abi_long do_pipe2(int host_pipe[], int flags)
|
|
{
|
|
#ifdef CONFIG_PIPE2
|
|
return pipe2(host_pipe, flags);
|
|
#else
|
|
return -ENOSYS;
|
|
#endif
|
|
}
|
|
|
|
static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
|
|
int flags, int is_pipe2)
|
|
{
|
|
int host_pipe[2];
|
|
abi_long ret;
|
|
ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
|
|
|
|
if (is_error(ret))
|
|
return get_errno(ret);
|
|
|
|
/* Several targets have special calling conventions for the original
|
|
pipe syscall, but didn't replicate this into the pipe2 syscall. */
|
|
if (!is_pipe2) {
|
|
#if defined(TARGET_ALPHA)
|
|
((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_MIPS)
|
|
((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_SH4)
|
|
((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#elif defined(TARGET_SPARC)
|
|
((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
|
|
return host_pipe[0];
|
|
#endif
|
|
}
|
|
|
|
if (put_user_s32(host_pipe[0], pipedes)
|
|
|| put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
|
|
return -TARGET_EFAULT;
|
|
return get_errno(ret);
|
|
}
|
|
|
|
static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
|
|
abi_ulong target_addr,
|
|
socklen_t len)
|
|
{
|
|
struct target_ip_mreqn *target_smreqn;
|
|
|
|
target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
|
|
if (!target_smreqn)
|
|
return -TARGET_EFAULT;
|
|
mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
|
|
mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
|
|
if (len == sizeof(struct target_ip_mreqn))
|
|
mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
|
|
unlock_user(target_smreqn, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
|
|
abi_ulong target_addr,
|
|
socklen_t len)
|
|
{
|
|
const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
|
|
sa_family_t sa_family;
|
|
struct target_sockaddr *target_saddr;
|
|
|
|
if (fd_trans_target_to_host_addr(fd)) {
|
|
return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
|
|
}
|
|
|
|
target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
|
|
if (!target_saddr)
|
|
return -TARGET_EFAULT;
|
|
|
|
sa_family = tswap16(target_saddr->sa_family);
|
|
|
|
/* Oops. The caller might send a incomplete sun_path; sun_path
|
|
* must be terminated by \0 (see the manual page), but
|
|
* unfortunately it is quite common to specify sockaddr_un
|
|
* length as "strlen(x->sun_path)" while it should be
|
|
* "strlen(...) + 1". We'll fix that here if needed.
|
|
* Linux kernel has a similar feature.
|
|
*/
|
|
|
|
if (sa_family == AF_UNIX) {
|
|
if (len < unix_maxlen && len > 0) {
|
|
char *cp = (char*)target_saddr;
|
|
|
|
if ( cp[len-1] && !cp[len] )
|
|
len++;
|
|
}
|
|
if (len > unix_maxlen)
|
|
len = unix_maxlen;
|
|
}
|
|
|
|
memcpy(addr, target_saddr, len);
|
|
addr->sa_family = sa_family;
|
|
if (sa_family == AF_NETLINK) {
|
|
struct sockaddr_nl *nladdr;
|
|
|
|
nladdr = (struct sockaddr_nl *)addr;
|
|
nladdr->nl_pid = tswap32(nladdr->nl_pid);
|
|
nladdr->nl_groups = tswap32(nladdr->nl_groups);
|
|
} else if (sa_family == AF_PACKET) {
|
|
struct target_sockaddr_ll *lladdr;
|
|
|
|
lladdr = (struct target_sockaddr_ll *)addr;
|
|
lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
|
|
lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
|
|
}
|
|
unlock_user(target_saddr, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
|
|
struct sockaddr *addr,
|
|
socklen_t len)
|
|
{
|
|
struct target_sockaddr *target_saddr;
|
|
|
|
if (len == 0) {
|
|
return 0;
|
|
}
|
|
|
|
target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
|
|
if (!target_saddr)
|
|
return -TARGET_EFAULT;
|
|
memcpy(target_saddr, addr, len);
|
|
if (len >= offsetof(struct target_sockaddr, sa_family) +
|
|
sizeof(target_saddr->sa_family)) {
|
|
target_saddr->sa_family = tswap16(addr->sa_family);
|
|
}
|
|
if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
|
|
struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
|
|
target_nl->nl_pid = tswap32(target_nl->nl_pid);
|
|
target_nl->nl_groups = tswap32(target_nl->nl_groups);
|
|
} else if (addr->sa_family == AF_PACKET) {
|
|
struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
|
|
target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
|
|
target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
|
|
}
|
|
unlock_user(target_saddr, target_addr, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
|
|
struct target_msghdr *target_msgh)
|
|
{
|
|
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
|
|
abi_long msg_controllen;
|
|
abi_ulong target_cmsg_addr;
|
|
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
|
|
socklen_t space = 0;
|
|
|
|
msg_controllen = tswapal(target_msgh->msg_controllen);
|
|
if (msg_controllen < sizeof (struct target_cmsghdr))
|
|
goto the_end;
|
|
target_cmsg_addr = tswapal(target_msgh->msg_control);
|
|
target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
|
|
target_cmsg_start = target_cmsg;
|
|
if (!target_cmsg)
|
|
return -TARGET_EFAULT;
|
|
|
|
while (cmsg && target_cmsg) {
|
|
void *data = CMSG_DATA(cmsg);
|
|
void *target_data = TARGET_CMSG_DATA(target_cmsg);
|
|
|
|
int len = tswapal(target_cmsg->cmsg_len)
|
|
- TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
|
|
|
|
space += CMSG_SPACE(len);
|
|
if (space > msgh->msg_controllen) {
|
|
space -= CMSG_SPACE(len);
|
|
/* This is a QEMU bug, since we allocated the payload
|
|
* area ourselves (unlike overflow in host-to-target
|
|
* conversion, which is just the guest giving us a buffer
|
|
* that's too small). It can't happen for the payload types
|
|
* we currently support; if it becomes an issue in future
|
|
* we would need to improve our allocation strategy to
|
|
* something more intelligent than "twice the size of the
|
|
* target buffer we're reading from".
|
|
*/
|
|
gemu_log("Host cmsg overflow\n");
|
|
break;
|
|
}
|
|
|
|
if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
} else {
|
|
cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
|
|
}
|
|
cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
|
|
cmsg->cmsg_len = CMSG_LEN(len);
|
|
|
|
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
|
|
int *fd = (int *)data;
|
|
int *target_fd = (int *)target_data;
|
|
int i, numfds = len / sizeof(int);
|
|
|
|
for (i = 0; i < numfds; i++) {
|
|
__get_user(fd[i], target_fd + i);
|
|
}
|
|
} else if (cmsg->cmsg_level == SOL_SOCKET
|
|
&& cmsg->cmsg_type == SCM_CREDENTIALS) {
|
|
struct ucred *cred = (struct ucred *)data;
|
|
struct target_ucred *target_cred =
|
|
(struct target_ucred *)target_data;
|
|
|
|
__get_user(cred->pid, &target_cred->pid);
|
|
__get_user(cred->uid, &target_cred->uid);
|
|
__get_user(cred->gid, &target_cred->gid);
|
|
} else {
|
|
gemu_log("Unsupported ancillary data: %d/%d\n",
|
|
cmsg->cmsg_level, cmsg->cmsg_type);
|
|
memcpy(data, target_data, len);
|
|
}
|
|
|
|
cmsg = CMSG_NXTHDR(msgh, cmsg);
|
|
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
|
|
target_cmsg_start);
|
|
}
|
|
unlock_user(target_cmsg, target_cmsg_addr, 0);
|
|
the_end:
|
|
msgh->msg_controllen = space;
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
|
|
struct msghdr *msgh)
|
|
{
|
|
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
|
|
abi_long msg_controllen;
|
|
abi_ulong target_cmsg_addr;
|
|
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
|
|
socklen_t space = 0;
|
|
|
|
msg_controllen = tswapal(target_msgh->msg_controllen);
|
|
if (msg_controllen < sizeof (struct target_cmsghdr))
|
|
goto the_end;
|
|
target_cmsg_addr = tswapal(target_msgh->msg_control);
|
|
target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
|
|
target_cmsg_start = target_cmsg;
|
|
if (!target_cmsg)
|
|
return -TARGET_EFAULT;
|
|
|
|
while (cmsg && target_cmsg) {
|
|
void *data = CMSG_DATA(cmsg);
|
|
void *target_data = TARGET_CMSG_DATA(target_cmsg);
|
|
|
|
int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
|
|
int tgt_len, tgt_space;
|
|
|
|
/* We never copy a half-header but may copy half-data;
|
|
* this is Linux's behaviour in put_cmsg(). Note that
|
|
* truncation here is a guest problem (which we report
|
|
* to the guest via the CTRUNC bit), unlike truncation
|
|
* in target_to_host_cmsg, which is a QEMU bug.
|
|
*/
|
|
if (msg_controllen < sizeof(struct cmsghdr)) {
|
|
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
|
|
break;
|
|
}
|
|
|
|
if (cmsg->cmsg_level == SOL_SOCKET) {
|
|
target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
|
|
} else {
|
|
target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
|
|
}
|
|
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
|
|
|
|
tgt_len = TARGET_CMSG_LEN(len);
|
|
|
|
/* Payload types which need a different size of payload on
|
|
* the target must adjust tgt_len here.
|
|
*/
|
|
switch (cmsg->cmsg_level) {
|
|
case SOL_SOCKET:
|
|
switch (cmsg->cmsg_type) {
|
|
case SO_TIMESTAMP:
|
|
tgt_len = sizeof(struct target_timeval);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (msg_controllen < tgt_len) {
|
|
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
|
|
tgt_len = msg_controllen;
|
|
}
|
|
|
|
/* We must now copy-and-convert len bytes of payload
|
|
* into tgt_len bytes of destination space. Bear in mind
|
|
* that in both source and destination we may be dealing
|
|
* with a truncated value!
|
|
*/
|
|
switch (cmsg->cmsg_level) {
|
|
case SOL_SOCKET:
|
|
switch (cmsg->cmsg_type) {
|
|
case SCM_RIGHTS:
|
|
{
|
|
int *fd = (int *)data;
|
|
int *target_fd = (int *)target_data;
|
|
int i, numfds = tgt_len / sizeof(int);
|
|
|
|
for (i = 0; i < numfds; i++) {
|
|
__put_user(fd[i], target_fd + i);
|
|
}
|
|
break;
|
|
}
|
|
case SO_TIMESTAMP:
|
|
{
|
|
struct timeval *tv = (struct timeval *)data;
|
|
struct target_timeval *target_tv =
|
|
(struct target_timeval *)target_data;
|
|
|
|
if (len != sizeof(struct timeval) ||
|
|
tgt_len != sizeof(struct target_timeval)) {
|
|
goto unimplemented;
|
|
}
|
|
|
|
/* copy struct timeval to target */
|
|
__put_user(tv->tv_sec, &target_tv->tv_sec);
|
|
__put_user(tv->tv_usec, &target_tv->tv_usec);
|
|
break;
|
|
}
|
|
case SCM_CREDENTIALS:
|
|
{
|
|
struct ucred *cred = (struct ucred *)data;
|
|
struct target_ucred *target_cred =
|
|
(struct target_ucred *)target_data;
|
|
|
|
__put_user(cred->pid, &target_cred->pid);
|
|
__put_user(cred->uid, &target_cred->uid);
|
|
__put_user(cred->gid, &target_cred->gid);
|
|
break;
|
|
}
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
unimplemented:
|
|
gemu_log("Unsupported ancillary data: %d/%d\n",
|
|
cmsg->cmsg_level, cmsg->cmsg_type);
|
|
memcpy(target_data, data, MIN(len, tgt_len));
|
|
if (tgt_len > len) {
|
|
memset(target_data + len, 0, tgt_len - len);
|
|
}
|
|
}
|
|
|
|
target_cmsg->cmsg_len = tswapal(tgt_len);
|
|
tgt_space = TARGET_CMSG_SPACE(len);
|
|
if (msg_controllen < tgt_space) {
|
|
tgt_space = msg_controllen;
|
|
}
|
|
msg_controllen -= tgt_space;
|
|
space += tgt_space;
|
|
cmsg = CMSG_NXTHDR(msgh, cmsg);
|
|
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
|
|
target_cmsg_start);
|
|
}
|
|
unlock_user(target_cmsg, target_cmsg_addr, space);
|
|
the_end:
|
|
target_msgh->msg_controllen = tswapal(space);
|
|
return 0;
|
|
}
|
|
|
|
static void tswap_nlmsghdr(struct nlmsghdr *nlh)
|
|
{
|
|
nlh->nlmsg_len = tswap32(nlh->nlmsg_len);
|
|
nlh->nlmsg_type = tswap16(nlh->nlmsg_type);
|
|
nlh->nlmsg_flags = tswap16(nlh->nlmsg_flags);
|
|
nlh->nlmsg_seq = tswap32(nlh->nlmsg_seq);
|
|
nlh->nlmsg_pid = tswap32(nlh->nlmsg_pid);
|
|
}
|
|
|
|
static abi_long host_to_target_for_each_nlmsg(struct nlmsghdr *nlh,
|
|
size_t len,
|
|
abi_long (*host_to_target_nlmsg)
|
|
(struct nlmsghdr *))
|
|
{
|
|
uint32_t nlmsg_len;
|
|
abi_long ret;
|
|
|
|
while (len > sizeof(struct nlmsghdr)) {
|
|
|
|
nlmsg_len = nlh->nlmsg_len;
|
|
if (nlmsg_len < sizeof(struct nlmsghdr) ||
|
|
nlmsg_len > len) {
|
|
break;
|
|
}
|
|
|
|
switch (nlh->nlmsg_type) {
|
|
case NLMSG_DONE:
|
|
tswap_nlmsghdr(nlh);
|
|
return 0;
|
|
case NLMSG_NOOP:
|
|
break;
|
|
case NLMSG_ERROR:
|
|
{
|
|
struct nlmsgerr *e = NLMSG_DATA(nlh);
|
|
e->error = tswap32(e->error);
|
|
tswap_nlmsghdr(&e->msg);
|
|
tswap_nlmsghdr(nlh);
|
|
return 0;
|
|
}
|
|
default:
|
|
ret = host_to_target_nlmsg(nlh);
|
|
if (ret < 0) {
|
|
tswap_nlmsghdr(nlh);
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
tswap_nlmsghdr(nlh);
|
|
len -= NLMSG_ALIGN(nlmsg_len);
|
|
nlh = (struct nlmsghdr *)(((char*)nlh) + NLMSG_ALIGN(nlmsg_len));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_for_each_nlmsg(struct nlmsghdr *nlh,
|
|
size_t len,
|
|
abi_long (*target_to_host_nlmsg)
|
|
(struct nlmsghdr *))
|
|
{
|
|
int ret;
|
|
|
|
while (len > sizeof(struct nlmsghdr)) {
|
|
if (tswap32(nlh->nlmsg_len) < sizeof(struct nlmsghdr) ||
|
|
tswap32(nlh->nlmsg_len) > len) {
|
|
break;
|
|
}
|
|
tswap_nlmsghdr(nlh);
|
|
switch (nlh->nlmsg_type) {
|
|
case NLMSG_DONE:
|
|
return 0;
|
|
case NLMSG_NOOP:
|
|
break;
|
|
case NLMSG_ERROR:
|
|
{
|
|
struct nlmsgerr *e = NLMSG_DATA(nlh);
|
|
e->error = tswap32(e->error);
|
|
tswap_nlmsghdr(&e->msg);
|
|
return 0;
|
|
}
|
|
default:
|
|
ret = target_to_host_nlmsg(nlh);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
len -= NLMSG_ALIGN(nlh->nlmsg_len);
|
|
nlh = (struct nlmsghdr *)(((char *)nlh) + NLMSG_ALIGN(nlh->nlmsg_len));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_RTNETLINK
|
|
static abi_long host_to_target_for_each_nlattr(struct nlattr *nlattr,
|
|
size_t len, void *context,
|
|
abi_long (*host_to_target_nlattr)
|
|
(struct nlattr *,
|
|
void *context))
|
|
{
|
|
unsigned short nla_len;
|
|
abi_long ret;
|
|
|
|
while (len > sizeof(struct nlattr)) {
|
|
nla_len = nlattr->nla_len;
|
|
if (nla_len < sizeof(struct nlattr) ||
|
|
nla_len > len) {
|
|
break;
|
|
}
|
|
ret = host_to_target_nlattr(nlattr, context);
|
|
nlattr->nla_len = tswap16(nlattr->nla_len);
|
|
nlattr->nla_type = tswap16(nlattr->nla_type);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
len -= NLA_ALIGN(nla_len);
|
|
nlattr = (struct nlattr *)(((char *)nlattr) + NLA_ALIGN(nla_len));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_for_each_rtattr(struct rtattr *rtattr,
|
|
size_t len,
|
|
abi_long (*host_to_target_rtattr)
|
|
(struct rtattr *))
|
|
{
|
|
unsigned short rta_len;
|
|
abi_long ret;
|
|
|
|
while (len > sizeof(struct rtattr)) {
|
|
rta_len = rtattr->rta_len;
|
|
if (rta_len < sizeof(struct rtattr) ||
|
|
rta_len > len) {
|
|
break;
|
|
}
|
|
ret = host_to_target_rtattr(rtattr);
|
|
rtattr->rta_len = tswap16(rtattr->rta_len);
|
|
rtattr->rta_type = tswap16(rtattr->rta_type);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
len -= RTA_ALIGN(rta_len);
|
|
rtattr = (struct rtattr *)(((char *)rtattr) + RTA_ALIGN(rta_len));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define NLA_DATA(nla) ((void *)((char *)(nla)) + NLA_HDRLEN)
|
|
|
|
static abi_long host_to_target_data_bridge_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
uint16_t *u16;
|
|
uint32_t *u32;
|
|
uint64_t *u64;
|
|
|
|
switch (nlattr->nla_type) {
|
|
/* no data */
|
|
case QEMU_IFLA_BR_FDB_FLUSH:
|
|
break;
|
|
/* binary */
|
|
case QEMU_IFLA_BR_GROUP_ADDR:
|
|
break;
|
|
/* uint8_t */
|
|
case QEMU_IFLA_BR_VLAN_FILTERING:
|
|
case QEMU_IFLA_BR_TOPOLOGY_CHANGE:
|
|
case QEMU_IFLA_BR_TOPOLOGY_CHANGE_DETECTED:
|
|
case QEMU_IFLA_BR_MCAST_ROUTER:
|
|
case QEMU_IFLA_BR_MCAST_SNOOPING:
|
|
case QEMU_IFLA_BR_MCAST_QUERY_USE_IFADDR:
|
|
case QEMU_IFLA_BR_MCAST_QUERIER:
|
|
case QEMU_IFLA_BR_NF_CALL_IPTABLES:
|
|
case QEMU_IFLA_BR_NF_CALL_IP6TABLES:
|
|
case QEMU_IFLA_BR_NF_CALL_ARPTABLES:
|
|
break;
|
|
/* uint16_t */
|
|
case QEMU_IFLA_BR_PRIORITY:
|
|
case QEMU_IFLA_BR_VLAN_PROTOCOL:
|
|
case QEMU_IFLA_BR_GROUP_FWD_MASK:
|
|
case QEMU_IFLA_BR_ROOT_PORT:
|
|
case QEMU_IFLA_BR_VLAN_DEFAULT_PVID:
|
|
u16 = NLA_DATA(nlattr);
|
|
*u16 = tswap16(*u16);
|
|
break;
|
|
/* uint32_t */
|
|
case QEMU_IFLA_BR_FORWARD_DELAY:
|
|
case QEMU_IFLA_BR_HELLO_TIME:
|
|
case QEMU_IFLA_BR_MAX_AGE:
|
|
case QEMU_IFLA_BR_AGEING_TIME:
|
|
case QEMU_IFLA_BR_STP_STATE:
|
|
case QEMU_IFLA_BR_ROOT_PATH_COST:
|
|
case QEMU_IFLA_BR_MCAST_HASH_ELASTICITY:
|
|
case QEMU_IFLA_BR_MCAST_HASH_MAX:
|
|
case QEMU_IFLA_BR_MCAST_LAST_MEMBER_CNT:
|
|
case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_CNT:
|
|
u32 = NLA_DATA(nlattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
/* uint64_t */
|
|
case QEMU_IFLA_BR_HELLO_TIMER:
|
|
case QEMU_IFLA_BR_TCN_TIMER:
|
|
case QEMU_IFLA_BR_GC_TIMER:
|
|
case QEMU_IFLA_BR_TOPOLOGY_CHANGE_TIMER:
|
|
case QEMU_IFLA_BR_MCAST_LAST_MEMBER_INTVL:
|
|
case QEMU_IFLA_BR_MCAST_MEMBERSHIP_INTVL:
|
|
case QEMU_IFLA_BR_MCAST_QUERIER_INTVL:
|
|
case QEMU_IFLA_BR_MCAST_QUERY_INTVL:
|
|
case QEMU_IFLA_BR_MCAST_QUERY_RESPONSE_INTVL:
|
|
case QEMU_IFLA_BR_MCAST_STARTUP_QUERY_INTVL:
|
|
u64 = NLA_DATA(nlattr);
|
|
*u64 = tswap64(*u64);
|
|
break;
|
|
/* ifla_bridge_id: uin8_t[] */
|
|
case QEMU_IFLA_BR_ROOT_ID:
|
|
case QEMU_IFLA_BR_BRIDGE_ID:
|
|
break;
|
|
default:
|
|
gemu_log("Unknown QEMU_IFLA_BR type %d\n", nlattr->nla_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_slave_data_bridge_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
uint16_t *u16;
|
|
uint32_t *u32;
|
|
uint64_t *u64;
|
|
|
|
switch (nlattr->nla_type) {
|
|
/* uint8_t */
|
|
case QEMU_IFLA_BRPORT_STATE:
|
|
case QEMU_IFLA_BRPORT_MODE:
|
|
case QEMU_IFLA_BRPORT_GUARD:
|
|
case QEMU_IFLA_BRPORT_PROTECT:
|
|
case QEMU_IFLA_BRPORT_FAST_LEAVE:
|
|
case QEMU_IFLA_BRPORT_LEARNING:
|
|
case QEMU_IFLA_BRPORT_UNICAST_FLOOD:
|
|
case QEMU_IFLA_BRPORT_PROXYARP:
|
|
case QEMU_IFLA_BRPORT_LEARNING_SYNC:
|
|
case QEMU_IFLA_BRPORT_PROXYARP_WIFI:
|
|
case QEMU_IFLA_BRPORT_TOPOLOGY_CHANGE_ACK:
|
|
case QEMU_IFLA_BRPORT_CONFIG_PENDING:
|
|
case QEMU_IFLA_BRPORT_MULTICAST_ROUTER:
|
|
break;
|
|
/* uint16_t */
|
|
case QEMU_IFLA_BRPORT_PRIORITY:
|
|
case QEMU_IFLA_BRPORT_DESIGNATED_PORT:
|
|
case QEMU_IFLA_BRPORT_DESIGNATED_COST:
|
|
case QEMU_IFLA_BRPORT_ID:
|
|
case QEMU_IFLA_BRPORT_NO:
|
|
u16 = NLA_DATA(nlattr);
|
|
*u16 = tswap16(*u16);
|
|
break;
|
|
/* uin32_t */
|
|
case QEMU_IFLA_BRPORT_COST:
|
|
u32 = NLA_DATA(nlattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
/* uint64_t */
|
|
case QEMU_IFLA_BRPORT_MESSAGE_AGE_TIMER:
|
|
case QEMU_IFLA_BRPORT_FORWARD_DELAY_TIMER:
|
|
case QEMU_IFLA_BRPORT_HOLD_TIMER:
|
|
u64 = NLA_DATA(nlattr);
|
|
*u64 = tswap64(*u64);
|
|
break;
|
|
/* ifla_bridge_id: uint8_t[] */
|
|
case QEMU_IFLA_BRPORT_ROOT_ID:
|
|
case QEMU_IFLA_BRPORT_BRIDGE_ID:
|
|
break;
|
|
default:
|
|
gemu_log("Unknown QEMU_IFLA_BRPORT type %d\n", nlattr->nla_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
struct linkinfo_context {
|
|
int len;
|
|
char *name;
|
|
int slave_len;
|
|
char *slave_name;
|
|
};
|
|
|
|
static abi_long host_to_target_data_linkinfo_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
struct linkinfo_context *li_context = context;
|
|
|
|
switch (nlattr->nla_type) {
|
|
/* string */
|
|
case QEMU_IFLA_INFO_KIND:
|
|
li_context->name = NLA_DATA(nlattr);
|
|
li_context->len = nlattr->nla_len - NLA_HDRLEN;
|
|
break;
|
|
case QEMU_IFLA_INFO_SLAVE_KIND:
|
|
li_context->slave_name = NLA_DATA(nlattr);
|
|
li_context->slave_len = nlattr->nla_len - NLA_HDRLEN;
|
|
break;
|
|
/* stats */
|
|
case QEMU_IFLA_INFO_XSTATS:
|
|
/* FIXME: only used by CAN */
|
|
break;
|
|
/* nested */
|
|
case QEMU_IFLA_INFO_DATA:
|
|
if (strncmp(li_context->name, "bridge",
|
|
li_context->len) == 0) {
|
|
return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
|
|
nlattr->nla_len,
|
|
NULL,
|
|
host_to_target_data_bridge_nlattr);
|
|
} else {
|
|
gemu_log("Unknown QEMU_IFLA_INFO_KIND %s\n", li_context->name);
|
|
}
|
|
break;
|
|
case QEMU_IFLA_INFO_SLAVE_DATA:
|
|
if (strncmp(li_context->slave_name, "bridge",
|
|
li_context->slave_len) == 0) {
|
|
return host_to_target_for_each_nlattr(NLA_DATA(nlattr),
|
|
nlattr->nla_len,
|
|
NULL,
|
|
host_to_target_slave_data_bridge_nlattr);
|
|
} else {
|
|
gemu_log("Unknown QEMU_IFLA_INFO_SLAVE_KIND %s\n",
|
|
li_context->slave_name);
|
|
}
|
|
break;
|
|
default:
|
|
gemu_log("Unknown host QEMU_IFLA_INFO type: %d\n", nlattr->nla_type);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_inet_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
uint32_t *u32;
|
|
int i;
|
|
|
|
switch (nlattr->nla_type) {
|
|
case QEMU_IFLA_INET_CONF:
|
|
u32 = NLA_DATA(nlattr);
|
|
for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
|
|
i++) {
|
|
u32[i] = tswap32(u32[i]);
|
|
}
|
|
break;
|
|
default:
|
|
gemu_log("Unknown host AF_INET type: %d\n", nlattr->nla_type);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_inet6_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
uint32_t *u32;
|
|
uint64_t *u64;
|
|
struct ifla_cacheinfo *ci;
|
|
int i;
|
|
|
|
switch (nlattr->nla_type) {
|
|
/* binaries */
|
|
case QEMU_IFLA_INET6_TOKEN:
|
|
break;
|
|
/* uint8_t */
|
|
case QEMU_IFLA_INET6_ADDR_GEN_MODE:
|
|
break;
|
|
/* uint32_t */
|
|
case QEMU_IFLA_INET6_FLAGS:
|
|
u32 = NLA_DATA(nlattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
/* uint32_t[] */
|
|
case QEMU_IFLA_INET6_CONF:
|
|
u32 = NLA_DATA(nlattr);
|
|
for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u32);
|
|
i++) {
|
|
u32[i] = tswap32(u32[i]);
|
|
}
|
|
break;
|
|
/* ifla_cacheinfo */
|
|
case QEMU_IFLA_INET6_CACHEINFO:
|
|
ci = NLA_DATA(nlattr);
|
|
ci->max_reasm_len = tswap32(ci->max_reasm_len);
|
|
ci->tstamp = tswap32(ci->tstamp);
|
|
ci->reachable_time = tswap32(ci->reachable_time);
|
|
ci->retrans_time = tswap32(ci->retrans_time);
|
|
break;
|
|
/* uint64_t[] */
|
|
case QEMU_IFLA_INET6_STATS:
|
|
case QEMU_IFLA_INET6_ICMP6STATS:
|
|
u64 = NLA_DATA(nlattr);
|
|
for (i = 0; i < (nlattr->nla_len - NLA_HDRLEN) / sizeof(*u64);
|
|
i++) {
|
|
u64[i] = tswap64(u64[i]);
|
|
}
|
|
break;
|
|
default:
|
|
gemu_log("Unknown host AF_INET6 type: %d\n", nlattr->nla_type);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_spec_nlattr(struct nlattr *nlattr,
|
|
void *context)
|
|
{
|
|
switch (nlattr->nla_type) {
|
|
case AF_INET:
|
|
return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
|
|
NULL,
|
|
host_to_target_data_inet_nlattr);
|
|
case AF_INET6:
|
|
return host_to_target_for_each_nlattr(NLA_DATA(nlattr), nlattr->nla_len,
|
|
NULL,
|
|
host_to_target_data_inet6_nlattr);
|
|
default:
|
|
gemu_log("Unknown host AF_SPEC type: %d\n", nlattr->nla_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_link_rtattr(struct rtattr *rtattr)
|
|
{
|
|
uint32_t *u32;
|
|
struct rtnl_link_stats *st;
|
|
struct rtnl_link_stats64 *st64;
|
|
struct rtnl_link_ifmap *map;
|
|
struct linkinfo_context li_context;
|
|
|
|
switch (rtattr->rta_type) {
|
|
/* binary stream */
|
|
case QEMU_IFLA_ADDRESS:
|
|
case QEMU_IFLA_BROADCAST:
|
|
/* string */
|
|
case QEMU_IFLA_IFNAME:
|
|
case QEMU_IFLA_QDISC:
|
|
break;
|
|
/* uin8_t */
|
|
case QEMU_IFLA_OPERSTATE:
|
|
case QEMU_IFLA_LINKMODE:
|
|
case QEMU_IFLA_CARRIER:
|
|
case QEMU_IFLA_PROTO_DOWN:
|
|
break;
|
|
/* uint32_t */
|
|
case QEMU_IFLA_MTU:
|
|
case QEMU_IFLA_LINK:
|
|
case QEMU_IFLA_WEIGHT:
|
|
case QEMU_IFLA_TXQLEN:
|
|
case QEMU_IFLA_CARRIER_CHANGES:
|
|
case QEMU_IFLA_NUM_RX_QUEUES:
|
|
case QEMU_IFLA_NUM_TX_QUEUES:
|
|
case QEMU_IFLA_PROMISCUITY:
|
|
case QEMU_IFLA_EXT_MASK:
|
|
case QEMU_IFLA_LINK_NETNSID:
|
|
case QEMU_IFLA_GROUP:
|
|
case QEMU_IFLA_MASTER:
|
|
case QEMU_IFLA_NUM_VF:
|
|
u32 = RTA_DATA(rtattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
/* struct rtnl_link_stats */
|
|
case QEMU_IFLA_STATS:
|
|
st = RTA_DATA(rtattr);
|
|
st->rx_packets = tswap32(st->rx_packets);
|
|
st->tx_packets = tswap32(st->tx_packets);
|
|
st->rx_bytes = tswap32(st->rx_bytes);
|
|
st->tx_bytes = tswap32(st->tx_bytes);
|
|
st->rx_errors = tswap32(st->rx_errors);
|
|
st->tx_errors = tswap32(st->tx_errors);
|
|
st->rx_dropped = tswap32(st->rx_dropped);
|
|
st->tx_dropped = tswap32(st->tx_dropped);
|
|
st->multicast = tswap32(st->multicast);
|
|
st->collisions = tswap32(st->collisions);
|
|
|
|
/* detailed rx_errors: */
|
|
st->rx_length_errors = tswap32(st->rx_length_errors);
|
|
st->rx_over_errors = tswap32(st->rx_over_errors);
|
|
st->rx_crc_errors = tswap32(st->rx_crc_errors);
|
|
st->rx_frame_errors = tswap32(st->rx_frame_errors);
|
|
st->rx_fifo_errors = tswap32(st->rx_fifo_errors);
|
|
st->rx_missed_errors = tswap32(st->rx_missed_errors);
|
|
|
|
/* detailed tx_errors */
|
|
st->tx_aborted_errors = tswap32(st->tx_aborted_errors);
|
|
st->tx_carrier_errors = tswap32(st->tx_carrier_errors);
|
|
st->tx_fifo_errors = tswap32(st->tx_fifo_errors);
|
|
st->tx_heartbeat_errors = tswap32(st->tx_heartbeat_errors);
|
|
st->tx_window_errors = tswap32(st->tx_window_errors);
|
|
|
|
/* for cslip etc */
|
|
st->rx_compressed = tswap32(st->rx_compressed);
|
|
st->tx_compressed = tswap32(st->tx_compressed);
|
|
break;
|
|
/* struct rtnl_link_stats64 */
|
|
case QEMU_IFLA_STATS64:
|
|
st64 = RTA_DATA(rtattr);
|
|
st64->rx_packets = tswap64(st64->rx_packets);
|
|
st64->tx_packets = tswap64(st64->tx_packets);
|
|
st64->rx_bytes = tswap64(st64->rx_bytes);
|
|
st64->tx_bytes = tswap64(st64->tx_bytes);
|
|
st64->rx_errors = tswap64(st64->rx_errors);
|
|
st64->tx_errors = tswap64(st64->tx_errors);
|
|
st64->rx_dropped = tswap64(st64->rx_dropped);
|
|
st64->tx_dropped = tswap64(st64->tx_dropped);
|
|
st64->multicast = tswap64(st64->multicast);
|
|
st64->collisions = tswap64(st64->collisions);
|
|
|
|
/* detailed rx_errors: */
|
|
st64->rx_length_errors = tswap64(st64->rx_length_errors);
|
|
st64->rx_over_errors = tswap64(st64->rx_over_errors);
|
|
st64->rx_crc_errors = tswap64(st64->rx_crc_errors);
|
|
st64->rx_frame_errors = tswap64(st64->rx_frame_errors);
|
|
st64->rx_fifo_errors = tswap64(st64->rx_fifo_errors);
|
|
st64->rx_missed_errors = tswap64(st64->rx_missed_errors);
|
|
|
|
/* detailed tx_errors */
|
|
st64->tx_aborted_errors = tswap64(st64->tx_aborted_errors);
|
|
st64->tx_carrier_errors = tswap64(st64->tx_carrier_errors);
|
|
st64->tx_fifo_errors = tswap64(st64->tx_fifo_errors);
|
|
st64->tx_heartbeat_errors = tswap64(st64->tx_heartbeat_errors);
|
|
st64->tx_window_errors = tswap64(st64->tx_window_errors);
|
|
|
|
/* for cslip etc */
|
|
st64->rx_compressed = tswap64(st64->rx_compressed);
|
|
st64->tx_compressed = tswap64(st64->tx_compressed);
|
|
break;
|
|
/* struct rtnl_link_ifmap */
|
|
case QEMU_IFLA_MAP:
|
|
map = RTA_DATA(rtattr);
|
|
map->mem_start = tswap64(map->mem_start);
|
|
map->mem_end = tswap64(map->mem_end);
|
|
map->base_addr = tswap64(map->base_addr);
|
|
map->irq = tswap16(map->irq);
|
|
break;
|
|
/* nested */
|
|
case QEMU_IFLA_LINKINFO:
|
|
memset(&li_context, 0, sizeof(li_context));
|
|
return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
|
|
&li_context,
|
|
host_to_target_data_linkinfo_nlattr);
|
|
case QEMU_IFLA_AF_SPEC:
|
|
return host_to_target_for_each_nlattr(RTA_DATA(rtattr), rtattr->rta_len,
|
|
NULL,
|
|
host_to_target_data_spec_nlattr);
|
|
default:
|
|
gemu_log("Unknown host QEMU_IFLA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_addr_rtattr(struct rtattr *rtattr)
|
|
{
|
|
uint32_t *u32;
|
|
struct ifa_cacheinfo *ci;
|
|
|
|
switch (rtattr->rta_type) {
|
|
/* binary: depends on family type */
|
|
case IFA_ADDRESS:
|
|
case IFA_LOCAL:
|
|
break;
|
|
/* string */
|
|
case IFA_LABEL:
|
|
break;
|
|
/* u32 */
|
|
case IFA_FLAGS:
|
|
case IFA_BROADCAST:
|
|
u32 = RTA_DATA(rtattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
/* struct ifa_cacheinfo */
|
|
case IFA_CACHEINFO:
|
|
ci = RTA_DATA(rtattr);
|
|
ci->ifa_prefered = tswap32(ci->ifa_prefered);
|
|
ci->ifa_valid = tswap32(ci->ifa_valid);
|
|
ci->cstamp = tswap32(ci->cstamp);
|
|
ci->tstamp = tswap32(ci->tstamp);
|
|
break;
|
|
default:
|
|
gemu_log("Unknown host IFA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_data_route_rtattr(struct rtattr *rtattr)
|
|
{
|
|
uint32_t *u32;
|
|
switch (rtattr->rta_type) {
|
|
/* binary: depends on family type */
|
|
case RTA_GATEWAY:
|
|
case RTA_DST:
|
|
case RTA_PREFSRC:
|
|
break;
|
|
/* u32 */
|
|
case RTA_PRIORITY:
|
|
case RTA_TABLE:
|
|
case RTA_OIF:
|
|
u32 = RTA_DATA(rtattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
default:
|
|
gemu_log("Unknown host RTA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long host_to_target_link_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
return host_to_target_for_each_rtattr(rtattr, rtattr_len,
|
|
host_to_target_data_link_rtattr);
|
|
}
|
|
|
|
static abi_long host_to_target_addr_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
return host_to_target_for_each_rtattr(rtattr, rtattr_len,
|
|
host_to_target_data_addr_rtattr);
|
|
}
|
|
|
|
static abi_long host_to_target_route_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
return host_to_target_for_each_rtattr(rtattr, rtattr_len,
|
|
host_to_target_data_route_rtattr);
|
|
}
|
|
|
|
static abi_long host_to_target_data_route(struct nlmsghdr *nlh)
|
|
{
|
|
uint32_t nlmsg_len;
|
|
struct ifinfomsg *ifi;
|
|
struct ifaddrmsg *ifa;
|
|
struct rtmsg *rtm;
|
|
|
|
nlmsg_len = nlh->nlmsg_len;
|
|
switch (nlh->nlmsg_type) {
|
|
case RTM_NEWLINK:
|
|
case RTM_DELLINK:
|
|
case RTM_GETLINK:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
|
|
ifi = NLMSG_DATA(nlh);
|
|
ifi->ifi_type = tswap16(ifi->ifi_type);
|
|
ifi->ifi_index = tswap32(ifi->ifi_index);
|
|
ifi->ifi_flags = tswap32(ifi->ifi_flags);
|
|
ifi->ifi_change = tswap32(ifi->ifi_change);
|
|
host_to_target_link_rtattr(IFLA_RTA(ifi),
|
|
nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)));
|
|
}
|
|
break;
|
|
case RTM_NEWADDR:
|
|
case RTM_DELADDR:
|
|
case RTM_GETADDR:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
|
|
ifa = NLMSG_DATA(nlh);
|
|
ifa->ifa_index = tswap32(ifa->ifa_index);
|
|
host_to_target_addr_rtattr(IFA_RTA(ifa),
|
|
nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
|
|
}
|
|
break;
|
|
case RTM_NEWROUTE:
|
|
case RTM_DELROUTE:
|
|
case RTM_GETROUTE:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
|
|
rtm = NLMSG_DATA(nlh);
|
|
rtm->rtm_flags = tswap32(rtm->rtm_flags);
|
|
host_to_target_route_rtattr(RTM_RTA(rtm),
|
|
nlmsg_len - NLMSG_LENGTH(sizeof(*rtm)));
|
|
}
|
|
break;
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_nlmsg_route(struct nlmsghdr *nlh,
|
|
size_t len)
|
|
{
|
|
return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_route);
|
|
}
|
|
|
|
static abi_long target_to_host_for_each_rtattr(struct rtattr *rtattr,
|
|
size_t len,
|
|
abi_long (*target_to_host_rtattr)
|
|
(struct rtattr *))
|
|
{
|
|
abi_long ret;
|
|
|
|
while (len >= sizeof(struct rtattr)) {
|
|
if (tswap16(rtattr->rta_len) < sizeof(struct rtattr) ||
|
|
tswap16(rtattr->rta_len) > len) {
|
|
break;
|
|
}
|
|
rtattr->rta_len = tswap16(rtattr->rta_len);
|
|
rtattr->rta_type = tswap16(rtattr->rta_type);
|
|
ret = target_to_host_rtattr(rtattr);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
len -= RTA_ALIGN(rtattr->rta_len);
|
|
rtattr = (struct rtattr *)(((char *)rtattr) +
|
|
RTA_ALIGN(rtattr->rta_len));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_data_link_rtattr(struct rtattr *rtattr)
|
|
{
|
|
switch (rtattr->rta_type) {
|
|
default:
|
|
gemu_log("Unknown target QEMU_IFLA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_data_addr_rtattr(struct rtattr *rtattr)
|
|
{
|
|
switch (rtattr->rta_type) {
|
|
/* binary: depends on family type */
|
|
case IFA_LOCAL:
|
|
case IFA_ADDRESS:
|
|
break;
|
|
default:
|
|
gemu_log("Unknown target IFA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_data_route_rtattr(struct rtattr *rtattr)
|
|
{
|
|
uint32_t *u32;
|
|
switch (rtattr->rta_type) {
|
|
/* binary: depends on family type */
|
|
case RTA_DST:
|
|
case RTA_SRC:
|
|
case RTA_GATEWAY:
|
|
break;
|
|
/* u32 */
|
|
case RTA_OIF:
|
|
u32 = RTA_DATA(rtattr);
|
|
*u32 = tswap32(*u32);
|
|
break;
|
|
default:
|
|
gemu_log("Unknown target RTA type: %d\n", rtattr->rta_type);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void target_to_host_link_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
target_to_host_for_each_rtattr(rtattr, rtattr_len,
|
|
target_to_host_data_link_rtattr);
|
|
}
|
|
|
|
static void target_to_host_addr_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
target_to_host_for_each_rtattr(rtattr, rtattr_len,
|
|
target_to_host_data_addr_rtattr);
|
|
}
|
|
|
|
static void target_to_host_route_rtattr(struct rtattr *rtattr,
|
|
uint32_t rtattr_len)
|
|
{
|
|
target_to_host_for_each_rtattr(rtattr, rtattr_len,
|
|
target_to_host_data_route_rtattr);
|
|
}
|
|
|
|
static abi_long target_to_host_data_route(struct nlmsghdr *nlh)
|
|
{
|
|
struct ifinfomsg *ifi;
|
|
struct ifaddrmsg *ifa;
|
|
struct rtmsg *rtm;
|
|
|
|
switch (nlh->nlmsg_type) {
|
|
case RTM_GETLINK:
|
|
break;
|
|
case RTM_NEWLINK:
|
|
case RTM_DELLINK:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifi))) {
|
|
ifi = NLMSG_DATA(nlh);
|
|
ifi->ifi_type = tswap16(ifi->ifi_type);
|
|
ifi->ifi_index = tswap32(ifi->ifi_index);
|
|
ifi->ifi_flags = tswap32(ifi->ifi_flags);
|
|
ifi->ifi_change = tswap32(ifi->ifi_change);
|
|
target_to_host_link_rtattr(IFLA_RTA(ifi), nlh->nlmsg_len -
|
|
NLMSG_LENGTH(sizeof(*ifi)));
|
|
}
|
|
break;
|
|
case RTM_GETADDR:
|
|
case RTM_NEWADDR:
|
|
case RTM_DELADDR:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*ifa))) {
|
|
ifa = NLMSG_DATA(nlh);
|
|
ifa->ifa_index = tswap32(ifa->ifa_index);
|
|
target_to_host_addr_rtattr(IFA_RTA(ifa), nlh->nlmsg_len -
|
|
NLMSG_LENGTH(sizeof(*ifa)));
|
|
}
|
|
break;
|
|
case RTM_GETROUTE:
|
|
break;
|
|
case RTM_NEWROUTE:
|
|
case RTM_DELROUTE:
|
|
if (nlh->nlmsg_len >= NLMSG_LENGTH(sizeof(*rtm))) {
|
|
rtm = NLMSG_DATA(nlh);
|
|
rtm->rtm_flags = tswap32(rtm->rtm_flags);
|
|
target_to_host_route_rtattr(RTM_RTA(rtm), nlh->nlmsg_len -
|
|
NLMSG_LENGTH(sizeof(*rtm)));
|
|
}
|
|
break;
|
|
default:
|
|
return -TARGET_EOPNOTSUPP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_nlmsg_route(struct nlmsghdr *nlh, size_t len)
|
|
{
|
|
return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_route);
|
|
}
|
|
#endif /* CONFIG_RTNETLINK */
|
|
|
|
static abi_long host_to_target_data_audit(struct nlmsghdr *nlh)
|
|
{
|
|
switch (nlh->nlmsg_type) {
|
|
default:
|
|
gemu_log("Unknown host audit message type %d\n",
|
|
nlh->nlmsg_type);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_nlmsg_audit(struct nlmsghdr *nlh,
|
|
size_t len)
|
|
{
|
|
return host_to_target_for_each_nlmsg(nlh, len, host_to_target_data_audit);
|
|
}
|
|
|
|
static abi_long target_to_host_data_audit(struct nlmsghdr *nlh)
|
|
{
|
|
switch (nlh->nlmsg_type) {
|
|
case AUDIT_USER:
|
|
case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
|
|
case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
|
|
break;
|
|
default:
|
|
gemu_log("Unknown target audit message type %d\n",
|
|
nlh->nlmsg_type);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static abi_long target_to_host_nlmsg_audit(struct nlmsghdr *nlh, size_t len)
|
|
{
|
|
return target_to_host_for_each_nlmsg(nlh, len, target_to_host_data_audit);
|
|
}
|
|
|
|
/* do_setsockopt() Must return target values and target errnos. */
|
|
static abi_long do_setsockopt(int sockfd, int level, int optname,
|
|
abi_ulong optval_addr, socklen_t optlen)
|
|
{
|
|
abi_long ret;
|
|
int val;
|
|
struct ip_mreqn *ip_mreq;
|
|
struct ip_mreq_source *ip_mreq_source;
|
|
|
|
switch(level) {
|
|
case SOL_TCP:
|
|
/* TCP options all take an 'int' value. */
|
|
if (optlen < sizeof(uint32_t))
|
|
return -TARGET_EINVAL;
|
|
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
|
|
break;
|
|
case SOL_IP:
|
|
switch(optname) {
|
|
case IP_TOS:
|
|
case IP_TTL:
|
|
case IP_HDRINCL:
|
|
case IP_ROUTER_ALERT:
|
|
case IP_RECVOPTS:
|
|
case IP_RETOPTS:
|
|
case IP_PKTINFO:
|
|
case IP_MTU_DISCOVER:
|
|
case IP_RECVERR:
|
|
case IP_RECVTOS:
|
|
#ifdef IP_FREEBIND
|
|
case IP_FREEBIND:
|
|
#endif
|
|
case IP_MULTICAST_TTL:
|
|
case IP_MULTICAST_LOOP:
|
|
val = 0;
|
|
if (optlen >= sizeof(uint32_t)) {
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else if (optlen >= 1) {
|
|
if (get_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
|
|
break;
|
|
case IP_ADD_MEMBERSHIP:
|
|
case IP_DROP_MEMBERSHIP:
|
|
if (optlen < sizeof (struct target_ip_mreq) ||
|
|
optlen > sizeof (struct target_ip_mreqn))
|
|
return -TARGET_EINVAL;
|
|
|
|
ip_mreq = (struct ip_mreqn *) alloca(optlen);
|
|
target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
|
|
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
|
|
break;
|
|
|
|
case IP_BLOCK_SOURCE:
|
|
case IP_UNBLOCK_SOURCE:
|
|
case IP_ADD_SOURCE_MEMBERSHIP:
|
|
case IP_DROP_SOURCE_MEMBERSHIP:
|
|
if (optlen != sizeof (struct target_ip_mreq_source))
|
|
return -TARGET_EINVAL;
|
|
|
|
ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
|
|
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
|
|
unlock_user (ip_mreq_source, optval_addr, 0);
|
|
break;
|
|
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case SOL_IPV6:
|
|
switch (optname) {
|
|
case IPV6_MTU_DISCOVER:
|
|
case IPV6_MTU:
|
|
case IPV6_V6ONLY:
|
|
case IPV6_RECVPKTINFO:
|
|
val = 0;
|
|
if (optlen < sizeof(uint32_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (get_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&val, sizeof(val)));
|
|
break;
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case SOL_RAW:
|
|
switch (optname) {
|
|
case ICMP_FILTER:
|
|
/* struct icmp_filter takes an u32 value */
|
|
if (optlen < sizeof(uint32_t)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (get_user_u32(val, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = get_errno(setsockopt(sockfd, level, optname,
|
|
&val, sizeof(val)));
|
|
break;
|
|
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
break;
|
|
case TARGET_SOL_SOCKET:
|
|
switch (optname) {
|
|
case TARGET_SO_RCVTIMEO:
|
|
{
|
|
struct timeval tv;
|
|
|
|
optname = SO_RCVTIMEO;
|
|
|
|
set_timeout:
|
|
if (optlen != sizeof(struct target_timeval)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (copy_from_user_timeval(&tv, optval_addr)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
|
|
&tv, sizeof(tv)));
|
|
return ret;
|
|
}
|
|
case TARGET_SO_SNDTIMEO:
|
|
optname = SO_SNDTIMEO;
|
|
goto set_timeout;
|
|
case TARGET_SO_ATTACH_FILTER:
|
|
{
|
|
struct target_sock_fprog *tfprog;
|
|
struct target_sock_filter *tfilter;
|
|
struct sock_fprog fprog;
|
|
struct sock_filter *filter;
|
|
int i;
|
|
|
|
if (optlen != sizeof(*tfprog)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, tfilter,
|
|
tswapal(tfprog->filter), 0)) {
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fprog.len = tswap16(tfprog->len);
|
|
filter = g_try_new(struct sock_filter, fprog.len);
|
|
if (filter == NULL) {
|
|
unlock_user_struct(tfilter, tfprog->filter, 1);
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
for (i = 0; i < fprog.len; i++) {
|
|
filter[i].code = tswap16(tfilter[i].code);
|
|
filter[i].jt = tfilter[i].jt;
|
|
filter[i].jf = tfilter[i].jf;
|
|
filter[i].k = tswap32(tfilter[i].k);
|
|
}
|
|
fprog.filter = filter;
|
|
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
|
|
SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
|
|
g_free(filter);
|
|
|
|
unlock_user_struct(tfilter, tfprog->filter, 1);
|
|
unlock_user_struct(tfprog, optval_addr, 1);
|
|
return ret;
|
|
}
|
|
case TARGET_SO_BINDTODEVICE:
|
|
{
|
|
char *dev_ifname, *addr_ifname;
|
|
|
|
if (optlen > IFNAMSIZ - 1) {
|
|
optlen = IFNAMSIZ - 1;
|
|
}
|
|
dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
|
|
if (!dev_ifname) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
optname = SO_BINDTODEVICE;
|
|
addr_ifname = alloca(IFNAMSIZ);
|
|
memcpy(addr_ifname, dev_ifname, optlen);
|
|
addr_ifname[optlen] = 0;
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
|
|
addr_ifname, optlen));
|
|
unlock_user (dev_ifname, optval_addr, 0);
|
|
return ret;
|
|
}
|
|
/* Options with 'int' argument. */
|
|
case TARGET_SO_DEBUG:
|
|
optname = SO_DEBUG;
|
|
break;
|
|
case TARGET_SO_REUSEADDR:
|
|
optname = SO_REUSEADDR;
|
|
break;
|
|
case TARGET_SO_TYPE:
|
|
optname = SO_TYPE;
|
|
break;
|
|
case TARGET_SO_ERROR:
|
|
optname = SO_ERROR;
|
|
break;
|
|
case TARGET_SO_DONTROUTE:
|
|
optname = SO_DONTROUTE;
|
|
break;
|
|
case TARGET_SO_BROADCAST:
|
|
optname = SO_BROADCAST;
|
|
break;
|
|
case TARGET_SO_SNDBUF:
|
|
optname = SO_SNDBUF;
|
|
break;
|
|
case TARGET_SO_SNDBUFFORCE:
|
|
optname = SO_SNDBUFFORCE;
|
|
break;
|
|
case TARGET_SO_RCVBUF:
|
|
optname = SO_RCVBUF;
|
|
break;
|
|
case TARGET_SO_RCVBUFFORCE:
|
|
optname = SO_RCVBUFFORCE;
|
|
break;
|
|
case TARGET_SO_KEEPALIVE:
|
|
optname = SO_KEEPALIVE;
|
|
break;
|
|
case TARGET_SO_OOBINLINE:
|
|
optname = SO_OOBINLINE;
|
|
break;
|
|
case TARGET_SO_NO_CHECK:
|
|
optname = SO_NO_CHECK;
|
|
break;
|
|
case TARGET_SO_PRIORITY:
|
|
optname = SO_PRIORITY;
|
|
break;
|
|
#ifdef SO_BSDCOMPAT
|
|
case TARGET_SO_BSDCOMPAT:
|
|
optname = SO_BSDCOMPAT;
|
|
break;
|
|
#endif
|
|
case TARGET_SO_PASSCRED:
|
|
optname = SO_PASSCRED;
|
|
break;
|
|
case TARGET_SO_PASSSEC:
|
|
optname = SO_PASSSEC;
|
|
break;
|
|
case TARGET_SO_TIMESTAMP:
|
|
optname = SO_TIMESTAMP;
|
|
break;
|
|
case TARGET_SO_RCVLOWAT:
|
|
optname = SO_RCVLOWAT;
|
|
break;
|
|
break;
|
|
default:
|
|
goto unimplemented;
|
|
}
|
|
if (optlen < sizeof(uint32_t))
|
|
return -TARGET_EINVAL;
|
|
|
|
if (get_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
|
|
break;
|
|
default:
|
|
unimplemented:
|
|
gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
|
|
ret = -TARGET_ENOPROTOOPT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getsockopt() Must return target values and target errnos. */
|
|
static abi_long do_getsockopt(int sockfd, int level, int optname,
|
|
abi_ulong optval_addr, abi_ulong optlen)
|
|
{
|
|
abi_long ret;
|
|
int len, val;
|
|
socklen_t lv;
|
|
|
|
switch(level) {
|
|
case TARGET_SOL_SOCKET:
|
|
level = SOL_SOCKET;
|
|
switch (optname) {
|
|
/* These don't just return a single integer */
|
|
case TARGET_SO_LINGER:
|
|
case TARGET_SO_RCVTIMEO:
|
|
case TARGET_SO_SNDTIMEO:
|
|
case TARGET_SO_PEERNAME:
|
|
goto unimplemented;
|
|
case TARGET_SO_PEERCRED: {
|
|
struct ucred cr;
|
|
socklen_t crlen;
|
|
struct target_ucred *tcr;
|
|
|
|
if (get_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (len < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
crlen = sizeof(cr);
|
|
ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
|
|
&cr, &crlen));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
if (len > crlen) {
|
|
len = crlen;
|
|
}
|
|
if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
__put_user(cr.pid, &tcr->pid);
|
|
__put_user(cr.uid, &tcr->uid);
|
|
__put_user(cr.gid, &tcr->gid);
|
|
unlock_user_struct(tcr, optval_addr, 1);
|
|
if (put_user_u32(len, optlen)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
/* Options with 'int' argument. */
|
|
case TARGET_SO_DEBUG:
|
|
optname = SO_DEBUG;
|
|
goto int_case;
|
|
case TARGET_SO_REUSEADDR:
|
|
optname = SO_REUSEADDR;
|
|
goto int_case;
|
|
case TARGET_SO_TYPE:
|
|
optname = SO_TYPE;
|
|
goto int_case;
|
|
case TARGET_SO_ERROR:
|
|
optname = SO_ERROR;
|
|
goto int_case;
|
|
case TARGET_SO_DONTROUTE:
|
|
optname = SO_DONTROUTE;
|
|
goto int_case;
|
|
case TARGET_SO_BROADCAST:
|
|
optname = SO_BROADCAST;
|
|
goto int_case;
|
|
case TARGET_SO_SNDBUF:
|
|
optname = SO_SNDBUF;
|
|
goto int_case;
|
|
case TARGET_SO_RCVBUF:
|
|
optname = SO_RCVBUF;
|
|
goto int_case;
|
|
case TARGET_SO_KEEPALIVE:
|
|
optname = SO_KEEPALIVE;
|
|
goto int_case;
|
|
case TARGET_SO_OOBINLINE:
|
|
optname = SO_OOBINLINE;
|
|
goto int_case;
|
|
case TARGET_SO_NO_CHECK:
|
|
optname = SO_NO_CHECK;
|
|
goto int_case;
|
|
case TARGET_SO_PRIORITY:
|
|
optname = SO_PRIORITY;
|
|
goto int_case;
|
|
#ifdef SO_BSDCOMPAT
|
|
case TARGET_SO_BSDCOMPAT:
|
|
optname = SO_BSDCOMPAT;
|
|
goto int_case;
|
|
#endif
|
|
case TARGET_SO_PASSCRED:
|
|
optname = SO_PASSCRED;
|
|
goto int_case;
|
|
case TARGET_SO_TIMESTAMP:
|
|
optname = SO_TIMESTAMP;
|
|
goto int_case;
|
|
case TARGET_SO_RCVLOWAT:
|
|
optname = SO_RCVLOWAT;
|
|
goto int_case;
|
|
case TARGET_SO_ACCEPTCONN:
|
|
optname = SO_ACCEPTCONN;
|
|
goto int_case;
|
|
default:
|
|
goto int_case;
|
|
}
|
|
break;
|
|
case SOL_TCP:
|
|
/* TCP options all take an 'int' value. */
|
|
int_case:
|
|
if (get_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
if (len < 0)
|
|
return -TARGET_EINVAL;
|
|
lv = sizeof(lv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0)
|
|
return ret;
|
|
if (optname == SO_TYPE) {
|
|
val = host_to_target_sock_type(val);
|
|
}
|
|
if (len > lv)
|
|
len = lv;
|
|
if (len == 4) {
|
|
if (put_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
if (put_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
if (put_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case SOL_IP:
|
|
switch(optname) {
|
|
case IP_TOS:
|
|
case IP_TTL:
|
|
case IP_HDRINCL:
|
|
case IP_ROUTER_ALERT:
|
|
case IP_RECVOPTS:
|
|
case IP_RETOPTS:
|
|
case IP_PKTINFO:
|
|
case IP_MTU_DISCOVER:
|
|
case IP_RECVERR:
|
|
case IP_RECVTOS:
|
|
#ifdef IP_FREEBIND
|
|
case IP_FREEBIND:
|
|
#endif
|
|
case IP_MULTICAST_TTL:
|
|
case IP_MULTICAST_LOOP:
|
|
if (get_user_u32(len, optlen))
|
|
return -TARGET_EFAULT;
|
|
if (len < 0)
|
|
return -TARGET_EINVAL;
|
|
lv = sizeof(lv);
|
|
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
|
|
if (ret < 0)
|
|
return ret;
|
|
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
|
|
len = 1;
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u8(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
} else {
|
|
if (len > sizeof(int))
|
|
len = sizeof(int);
|
|
if (put_user_u32(len, optlen)
|
|
|| put_user_u32(val, optval_addr))
|
|
return -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
default:
|
|
ret = -TARGET_ENOPROTOOPT;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
unimplemented:
|
|
gemu_log("getsockopt level=%d optname=%d not yet supported\n",
|
|
level, optname);
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static struct iovec *lock_iovec(int type, abi_ulong target_addr,
|
|
abi_ulong count, int copy)
|
|
{
|
|
struct target_iovec *target_vec;
|
|
struct iovec *vec;
|
|
abi_ulong total_len, max_len;
|
|
int i;
|
|
int err = 0;
|
|
bool bad_address = false;
|
|
|
|
if (count == 0) {
|
|
errno = 0;
|
|
return NULL;
|
|
}
|
|
if (count > IOV_MAX) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
vec = g_try_new0(struct iovec, count);
|
|
if (vec == NULL) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
|
|
target_vec = lock_user(VERIFY_READ, target_addr,
|
|
count * sizeof(struct target_iovec), 1);
|
|
if (target_vec == NULL) {
|
|
err = EFAULT;
|
|
goto fail2;
|
|
}
|
|
|
|
/* ??? If host page size > target page size, this will result in a
|
|
value larger than what we can actually support. */
|
|
max_len = 0x7fffffff & TARGET_PAGE_MASK;
|
|
total_len = 0;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
abi_ulong base = tswapal(target_vec[i].iov_base);
|
|
abi_long len = tswapal(target_vec[i].iov_len);
|
|
|
|
if (len < 0) {
|
|
err = EINVAL;
|
|
goto fail;
|
|
} else if (len == 0) {
|
|
/* Zero length pointer is ignored. */
|
|
vec[i].iov_base = 0;
|
|
} else {
|
|
vec[i].iov_base = lock_user(type, base, len, copy);
|
|
/* If the first buffer pointer is bad, this is a fault. But
|
|
* subsequent bad buffers will result in a partial write; this
|
|
* is realized by filling the vector with null pointers and
|
|
* zero lengths. */
|
|
if (!vec[i].iov_base) {
|
|
if (i == 0) {
|
|
err = EFAULT;
|
|
goto fail;
|
|
} else {
|
|
bad_address = true;
|
|
}
|
|
}
|
|
if (bad_address) {
|
|
len = 0;
|
|
}
|
|
if (len > max_len - total_len) {
|
|
len = max_len - total_len;
|
|
}
|
|
}
|
|
vec[i].iov_len = len;
|
|
total_len += len;
|
|
}
|
|
|
|
unlock_user(target_vec, target_addr, 0);
|
|
return vec;
|
|
|
|
fail:
|
|
while (--i >= 0) {
|
|
if (tswapal(target_vec[i].iov_len) > 0) {
|
|
unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
|
|
}
|
|
}
|
|
unlock_user(target_vec, target_addr, 0);
|
|
fail2:
|
|
g_free(vec);
|
|
errno = err;
|
|
return NULL;
|
|
}
|
|
|
|
static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
|
|
abi_ulong count, int copy)
|
|
{
|
|
struct target_iovec *target_vec;
|
|
int i;
|
|
|
|
target_vec = lock_user(VERIFY_READ, target_addr,
|
|
count * sizeof(struct target_iovec), 1);
|
|
if (target_vec) {
|
|
for (i = 0; i < count; i++) {
|
|
abi_ulong base = tswapal(target_vec[i].iov_base);
|
|
abi_long len = tswapal(target_vec[i].iov_len);
|
|
if (len < 0) {
|
|
break;
|
|
}
|
|
unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
|
|
}
|
|
unlock_user(target_vec, target_addr, 0);
|
|
}
|
|
|
|
g_free(vec);
|
|
}
|
|
|
|
static inline int target_to_host_sock_type(int *type)
|
|
{
|
|
int host_type = 0;
|
|
int target_type = *type;
|
|
|
|
switch (target_type & TARGET_SOCK_TYPE_MASK) {
|
|
case TARGET_SOCK_DGRAM:
|
|
host_type = SOCK_DGRAM;
|
|
break;
|
|
case TARGET_SOCK_STREAM:
|
|
host_type = SOCK_STREAM;
|
|
break;
|
|
default:
|
|
host_type = target_type & TARGET_SOCK_TYPE_MASK;
|
|
break;
|
|
}
|
|
if (target_type & TARGET_SOCK_CLOEXEC) {
|
|
#if defined(SOCK_CLOEXEC)
|
|
host_type |= SOCK_CLOEXEC;
|
|
#else
|
|
return -TARGET_EINVAL;
|
|
#endif
|
|
}
|
|
if (target_type & TARGET_SOCK_NONBLOCK) {
|
|
#if defined(SOCK_NONBLOCK)
|
|
host_type |= SOCK_NONBLOCK;
|
|
#elif !defined(O_NONBLOCK)
|
|
return -TARGET_EINVAL;
|
|
#endif
|
|
}
|
|
*type = host_type;
|
|
return 0;
|
|
}
|
|
|
|
/* Try to emulate socket type flags after socket creation. */
|
|
static int sock_flags_fixup(int fd, int target_type)
|
|
{
|
|
#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
|
|
if (target_type & TARGET_SOCK_NONBLOCK) {
|
|
int flags = fcntl(fd, F_GETFL);
|
|
if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
|
|
close(fd);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
}
|
|
#endif
|
|
return fd;
|
|
}
|
|
|
|
static abi_long packet_target_to_host_sockaddr(void *host_addr,
|
|
abi_ulong target_addr,
|
|
socklen_t len)
|
|
{
|
|
struct sockaddr *addr = host_addr;
|
|
struct target_sockaddr *target_saddr;
|
|
|
|
target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
|
|
if (!target_saddr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
memcpy(addr, target_saddr, len);
|
|
addr->sa_family = tswap16(target_saddr->sa_family);
|
|
/* spkt_protocol is big-endian */
|
|
|
|
unlock_user(target_saddr, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static TargetFdTrans target_packet_trans = {
|
|
.target_to_host_addr = packet_target_to_host_sockaddr,
|
|
};
|
|
|
|
#ifdef CONFIG_RTNETLINK
|
|
static abi_long netlink_route_target_to_host(void *buf, size_t len)
|
|
{
|
|
abi_long ret;
|
|
|
|
ret = target_to_host_nlmsg_route(buf, len);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static abi_long netlink_route_host_to_target(void *buf, size_t len)
|
|
{
|
|
abi_long ret;
|
|
|
|
ret = host_to_target_nlmsg_route(buf, len);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static TargetFdTrans target_netlink_route_trans = {
|
|
.target_to_host_data = netlink_route_target_to_host,
|
|
.host_to_target_data = netlink_route_host_to_target,
|
|
};
|
|
#endif /* CONFIG_RTNETLINK */
|
|
|
|
static abi_long netlink_audit_target_to_host(void *buf, size_t len)
|
|
{
|
|
abi_long ret;
|
|
|
|
ret = target_to_host_nlmsg_audit(buf, len);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static abi_long netlink_audit_host_to_target(void *buf, size_t len)
|
|
{
|
|
abi_long ret;
|
|
|
|
ret = host_to_target_nlmsg_audit(buf, len);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static TargetFdTrans target_netlink_audit_trans = {
|
|
.target_to_host_data = netlink_audit_target_to_host,
|
|
.host_to_target_data = netlink_audit_host_to_target,
|
|
};
|
|
|
|
/* do_socket() Must return target values and target errnos. */
|
|
static abi_long do_socket(int domain, int type, int protocol)
|
|
{
|
|
int target_type = type;
|
|
int ret;
|
|
|
|
ret = target_to_host_sock_type(&type);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
|
|
if (domain == PF_NETLINK && !(
|
|
#ifdef CONFIG_RTNETLINK
|
|
protocol == NETLINK_ROUTE ||
|
|
#endif
|
|
protocol == NETLINK_KOBJECT_UEVENT ||
|
|
protocol == NETLINK_AUDIT)) {
|
|
return -EPFNOSUPPORT;
|
|
}
|
|
|
|
if (domain == AF_PACKET ||
|
|
(domain == AF_INET && type == SOCK_PACKET)) {
|
|
protocol = tswap16(protocol);
|
|
}
|
|
|
|
ret = get_errno(socket(domain, type, protocol));
|
|
if (ret >= 0) {
|
|
ret = sock_flags_fixup(ret, target_type);
|
|
if (type == SOCK_PACKET) {
|
|
/* Manage an obsolete case :
|
|
* if socket type is SOCK_PACKET, bind by name
|
|
*/
|
|
fd_trans_register(ret, &target_packet_trans);
|
|
} else if (domain == PF_NETLINK) {
|
|
switch (protocol) {
|
|
#ifdef CONFIG_RTNETLINK
|
|
case NETLINK_ROUTE:
|
|
fd_trans_register(ret, &target_netlink_route_trans);
|
|
break;
|
|
#endif
|
|
case NETLINK_KOBJECT_UEVENT:
|
|
/* nothing to do: messages are strings */
|
|
break;
|
|
case NETLINK_AUDIT:
|
|
fd_trans_register(ret, &target_netlink_audit_trans);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_bind() Must return target values and target errnos. */
|
|
static abi_long do_bind(int sockfd, abi_ulong target_addr,
|
|
socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
addr = alloca(addrlen+1);
|
|
|
|
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return get_errno(bind(sockfd, addr, addrlen));
|
|
}
|
|
|
|
/* do_connect() Must return target values and target errnos. */
|
|
static abi_long do_connect(int sockfd, abi_ulong target_addr,
|
|
socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
addr = alloca(addrlen+1);
|
|
|
|
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return get_errno(safe_connect(sockfd, addr, addrlen));
|
|
}
|
|
|
|
/* do_sendrecvmsg_locked() Must return target values and target errnos. */
|
|
static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
|
|
int flags, int send)
|
|
{
|
|
abi_long ret, len;
|
|
struct msghdr msg;
|
|
abi_ulong count;
|
|
struct iovec *vec;
|
|
abi_ulong target_vec;
|
|
|
|
if (msgp->msg_name) {
|
|
msg.msg_namelen = tswap32(msgp->msg_namelen);
|
|
msg.msg_name = alloca(msg.msg_namelen+1);
|
|
ret = target_to_host_sockaddr(fd, msg.msg_name,
|
|
tswapal(msgp->msg_name),
|
|
msg.msg_namelen);
|
|
if (ret == -TARGET_EFAULT) {
|
|
/* For connected sockets msg_name and msg_namelen must
|
|
* be ignored, so returning EFAULT immediately is wrong.
|
|
* Instead, pass a bad msg_name to the host kernel, and
|
|
* let it decide whether to return EFAULT or not.
|
|
*/
|
|
msg.msg_name = (void *)-1;
|
|
} else if (ret) {
|
|
goto out2;
|
|
}
|
|
} else {
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
}
|
|
msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
|
|
msg.msg_control = alloca(msg.msg_controllen);
|
|
msg.msg_flags = tswap32(msgp->msg_flags);
|
|
|
|
count = tswapal(msgp->msg_iovlen);
|
|
target_vec = tswapal(msgp->msg_iov);
|
|
|
|
if (count > IOV_MAX) {
|
|
/* sendrcvmsg returns a different errno for this condition than
|
|
* readv/writev, so we must catch it here before lock_iovec() does.
|
|
*/
|
|
ret = -TARGET_EMSGSIZE;
|
|
goto out2;
|
|
}
|
|
|
|
vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
|
|
target_vec, count, send);
|
|
if (vec == NULL) {
|
|
ret = -host_to_target_errno(errno);
|
|
goto out2;
|
|
}
|
|
msg.msg_iovlen = count;
|
|
msg.msg_iov = vec;
|
|
|
|
if (send) {
|
|
if (fd_trans_target_to_host_data(fd)) {
|
|
void *host_msg;
|
|
|
|
host_msg = g_malloc(msg.msg_iov->iov_len);
|
|
memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
|
|
ret = fd_trans_target_to_host_data(fd)(host_msg,
|
|
msg.msg_iov->iov_len);
|
|
if (ret >= 0) {
|
|
msg.msg_iov->iov_base = host_msg;
|
|
ret = get_errno(safe_sendmsg(fd, &msg, flags));
|
|
}
|
|
g_free(host_msg);
|
|
} else {
|
|
ret = target_to_host_cmsg(&msg, msgp);
|
|
if (ret == 0) {
|
|
ret = get_errno(safe_sendmsg(fd, &msg, flags));
|
|
}
|
|
}
|
|
} else {
|
|
ret = get_errno(safe_recvmsg(fd, &msg, flags));
|
|
if (!is_error(ret)) {
|
|
len = ret;
|
|
if (fd_trans_host_to_target_data(fd)) {
|
|
ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
|
|
len);
|
|
} else {
|
|
ret = host_to_target_cmsg(msgp, &msg);
|
|
}
|
|
if (!is_error(ret)) {
|
|
msgp->msg_namelen = tswap32(msg.msg_namelen);
|
|
if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
|
|
ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
|
|
msg.msg_name, msg.msg_namelen);
|
|
if (ret) {
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
ret = len;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
unlock_iovec(vec, target_vec, count, !send);
|
|
out2:
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
|
|
int flags, int send)
|
|
{
|
|
abi_long ret;
|
|
struct target_msghdr *msgp;
|
|
|
|
if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
|
|
msgp,
|
|
target_msg,
|
|
send ? 1 : 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
|
|
unlock_user_struct(msgp, target_msg, send ? 0 : 1);
|
|
return ret;
|
|
}
|
|
|
|
/* We don't rely on the C library to have sendmmsg/recvmmsg support,
|
|
* so it might not have this *mmsg-specific flag either.
|
|
*/
|
|
#ifndef MSG_WAITFORONE
|
|
#define MSG_WAITFORONE 0x10000
|
|
#endif
|
|
|
|
static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
|
|
unsigned int vlen, unsigned int flags,
|
|
int send)
|
|
{
|
|
struct target_mmsghdr *mmsgp;
|
|
abi_long ret = 0;
|
|
int i;
|
|
|
|
if (vlen > UIO_MAXIOV) {
|
|
vlen = UIO_MAXIOV;
|
|
}
|
|
|
|
mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
|
|
if (!mmsgp) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for (i = 0; i < vlen; i++) {
|
|
ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
|
|
if (is_error(ret)) {
|
|
break;
|
|
}
|
|
mmsgp[i].msg_len = tswap32(ret);
|
|
/* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
|
|
if (flags & MSG_WAITFORONE) {
|
|
flags |= MSG_DONTWAIT;
|
|
}
|
|
}
|
|
|
|
unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
|
|
|
|
/* Return number of datagrams sent if we sent any at all;
|
|
* otherwise return the error.
|
|
*/
|
|
if (i) {
|
|
return i;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_accept4() Must return target values and target errnos. */
|
|
static abi_long do_accept4(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr, int flags)
|
|
{
|
|
socklen_t addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
int host_flags;
|
|
|
|
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
|
|
|
|
if (target_addr == 0) {
|
|
return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
|
|
}
|
|
|
|
/* linux returns EINVAL if addrlen pointer is invalid */
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EINVAL;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
|
|
return -TARGET_EINVAL;
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret = get_errno(safe_accept4(fd, addr, &addrlen, host_flags));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, addrlen);
|
|
if (put_user_u32(addrlen, target_addrlen_addr))
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getpeername() Must return target values and target errnos. */
|
|
static abi_long do_getpeername(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr)
|
|
{
|
|
socklen_t addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EFAULT;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
|
|
return -TARGET_EFAULT;
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret = get_errno(getpeername(fd, addr, &addrlen));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, addrlen);
|
|
if (put_user_u32(addrlen, target_addrlen_addr))
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_getsockname() Must return target values and target errnos. */
|
|
static abi_long do_getsockname(int fd, abi_ulong target_addr,
|
|
abi_ulong target_addrlen_addr)
|
|
{
|
|
socklen_t addrlen;
|
|
void *addr;
|
|
abi_long ret;
|
|
|
|
if (get_user_u32(addrlen, target_addrlen_addr))
|
|
return -TARGET_EFAULT;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
|
|
return -TARGET_EFAULT;
|
|
|
|
addr = alloca(addrlen);
|
|
|
|
ret = get_errno(getsockname(fd, addr, &addrlen));
|
|
if (!is_error(ret)) {
|
|
host_to_target_sockaddr(target_addr, addr, addrlen);
|
|
if (put_user_u32(addrlen, target_addrlen_addr))
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_socketpair() Must return target values and target errnos. */
|
|
static abi_long do_socketpair(int domain, int type, int protocol,
|
|
abi_ulong target_tab_addr)
|
|
{
|
|
int tab[2];
|
|
abi_long ret;
|
|
|
|
target_to_host_sock_type(&type);
|
|
|
|
ret = get_errno(socketpair(domain, type, protocol, tab));
|
|
if (!is_error(ret)) {
|
|
if (put_user_s32(tab[0], target_tab_addr)
|
|
|| put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* do_sendto() Must return target values and target errnos. */
|
|
static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
|
|
abi_ulong target_addr, socklen_t addrlen)
|
|
{
|
|
void *addr;
|
|
void *host_msg;
|
|
void *copy_msg = NULL;
|
|
abi_long ret;
|
|
|
|
if ((int)addrlen < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
host_msg = lock_user(VERIFY_READ, msg, len, 1);
|
|
if (!host_msg)
|
|
return -TARGET_EFAULT;
|
|
if (fd_trans_target_to_host_data(fd)) {
|
|
copy_msg = host_msg;
|
|
host_msg = g_malloc(len);
|
|
memcpy(host_msg, copy_msg, len);
|
|
ret = fd_trans_target_to_host_data(fd)(host_msg, len);
|
|
if (ret < 0) {
|
|
goto fail;
|
|
}
|
|
}
|
|
if (target_addr) {
|
|
addr = alloca(addrlen+1);
|
|
ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
|
|
if (ret) {
|
|
goto fail;
|
|
}
|
|
ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
|
|
} else {
|
|
ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
|
|
}
|
|
fail:
|
|
if (copy_msg) {
|
|
g_free(host_msg);
|
|
host_msg = copy_msg;
|
|
}
|
|
unlock_user(host_msg, msg, 0);
|
|
return ret;
|
|
}
|
|
|
|
/* do_recvfrom() Must return target values and target errnos. */
|
|
static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
|
|
abi_ulong target_addr,
|
|
abi_ulong target_addrlen)
|
|
{
|
|
socklen_t addrlen;
|
|
void *addr;
|
|
void *host_msg;
|
|
abi_long ret;
|
|
|
|
host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
|
|
if (!host_msg)
|
|
return -TARGET_EFAULT;
|
|
if (target_addr) {
|
|
if (get_user_u32(addrlen, target_addrlen)) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
if ((int)addrlen < 0) {
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
addr = alloca(addrlen);
|
|
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
|
|
addr, &addrlen));
|
|
} else {
|
|
addr = NULL; /* To keep compiler quiet. */
|
|
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
|
|
}
|
|
if (!is_error(ret)) {
|
|
if (fd_trans_host_to_target_data(fd)) {
|
|
ret = fd_trans_host_to_target_data(fd)(host_msg, ret);
|
|
}
|
|
if (target_addr) {
|
|
host_to_target_sockaddr(target_addr, addr, addrlen);
|
|
if (put_user_u32(addrlen, target_addrlen)) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
}
|
|
unlock_user(host_msg, msg, len);
|
|
} else {
|
|
fail:
|
|
unlock_user(host_msg, msg, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef TARGET_NR_socketcall
|
|
/* do_socketcall() Must return target values and target errnos. */
|
|
static abi_long do_socketcall(int num, abi_ulong vptr)
|
|
{
|
|
static const unsigned ac[] = { /* number of arguments per call */
|
|
[SOCKOP_socket] = 3, /* domain, type, protocol */
|
|
[SOCKOP_bind] = 3, /* sockfd, addr, addrlen */
|
|
[SOCKOP_connect] = 3, /* sockfd, addr, addrlen */
|
|
[SOCKOP_listen] = 2, /* sockfd, backlog */
|
|
[SOCKOP_accept] = 3, /* sockfd, addr, addrlen */
|
|
[SOCKOP_accept4] = 4, /* sockfd, addr, addrlen, flags */
|
|
[SOCKOP_getsockname] = 3, /* sockfd, addr, addrlen */
|
|
[SOCKOP_getpeername] = 3, /* sockfd, addr, addrlen */
|
|
[SOCKOP_socketpair] = 4, /* domain, type, protocol, tab */
|
|
[SOCKOP_send] = 4, /* sockfd, msg, len, flags */
|
|
[SOCKOP_recv] = 4, /* sockfd, msg, len, flags */
|
|
[SOCKOP_sendto] = 6, /* sockfd, msg, len, flags, addr, addrlen */
|
|
[SOCKOP_recvfrom] = 6, /* sockfd, msg, len, flags, addr, addrlen */
|
|
[SOCKOP_shutdown] = 2, /* sockfd, how */
|
|
[SOCKOP_sendmsg] = 3, /* sockfd, msg, flags */
|
|
[SOCKOP_recvmsg] = 3, /* sockfd, msg, flags */
|
|
[SOCKOP_sendmmsg] = 4, /* sockfd, msgvec, vlen, flags */
|
|
[SOCKOP_recvmmsg] = 4, /* sockfd, msgvec, vlen, flags */
|
|
[SOCKOP_setsockopt] = 5, /* sockfd, level, optname, optval, optlen */
|
|
[SOCKOP_getsockopt] = 5, /* sockfd, level, optname, optval, optlen */
|
|
};
|
|
abi_long a[6]; /* max 6 args */
|
|
|
|
/* first, collect the arguments in a[] according to ac[] */
|
|
if (num >= 0 && num < ARRAY_SIZE(ac)) {
|
|
unsigned i;
|
|
assert(ARRAY_SIZE(a) >= ac[num]); /* ensure we have space for args */
|
|
for (i = 0; i < ac[num]; ++i) {
|
|
if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* now when we have the args, actually handle the call */
|
|
switch (num) {
|
|
case SOCKOP_socket: /* domain, type, protocol */
|
|
return do_socket(a[0], a[1], a[2]);
|
|
case SOCKOP_bind: /* sockfd, addr, addrlen */
|
|
return do_bind(a[0], a[1], a[2]);
|
|
case SOCKOP_connect: /* sockfd, addr, addrlen */
|
|
return do_connect(a[0], a[1], a[2]);
|
|
case SOCKOP_listen: /* sockfd, backlog */
|
|
return get_errno(listen(a[0], a[1]));
|
|
case SOCKOP_accept: /* sockfd, addr, addrlen */
|
|
return do_accept4(a[0], a[1], a[2], 0);
|
|
case SOCKOP_accept4: /* sockfd, addr, addrlen, flags */
|
|
return do_accept4(a[0], a[1], a[2], a[3]);
|
|
case SOCKOP_getsockname: /* sockfd, addr, addrlen */
|
|
return do_getsockname(a[0], a[1], a[2]);
|
|
case SOCKOP_getpeername: /* sockfd, addr, addrlen */
|
|
return do_getpeername(a[0], a[1], a[2]);
|
|
case SOCKOP_socketpair: /* domain, type, protocol, tab */
|
|
return do_socketpair(a[0], a[1], a[2], a[3]);
|
|
case SOCKOP_send: /* sockfd, msg, len, flags */
|
|
return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
|
|
case SOCKOP_recv: /* sockfd, msg, len, flags */
|
|
return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
|
|
case SOCKOP_sendto: /* sockfd, msg, len, flags, addr, addrlen */
|
|
return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
|
|
case SOCKOP_recvfrom: /* sockfd, msg, len, flags, addr, addrlen */
|
|
return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
|
|
case SOCKOP_shutdown: /* sockfd, how */
|
|
return get_errno(shutdown(a[0], a[1]));
|
|
case SOCKOP_sendmsg: /* sockfd, msg, flags */
|
|
return do_sendrecvmsg(a[0], a[1], a[2], 1);
|
|
case SOCKOP_recvmsg: /* sockfd, msg, flags */
|
|
return do_sendrecvmsg(a[0], a[1], a[2], 0);
|
|
case SOCKOP_sendmmsg: /* sockfd, msgvec, vlen, flags */
|
|
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
|
|
case SOCKOP_recvmmsg: /* sockfd, msgvec, vlen, flags */
|
|
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
|
|
case SOCKOP_setsockopt: /* sockfd, level, optname, optval, optlen */
|
|
return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
|
|
case SOCKOP_getsockopt: /* sockfd, level, optname, optval, optlen */
|
|
return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
|
|
default:
|
|
gemu_log("Unsupported socketcall: %d\n", num);
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#define N_SHM_REGIONS 32
|
|
|
|
static struct shm_region {
|
|
abi_ulong start;
|
|
abi_ulong size;
|
|
bool in_use;
|
|
} shm_regions[N_SHM_REGIONS];
|
|
|
|
#ifndef TARGET_SEMID64_DS
|
|
/* asm-generic version of this struct */
|
|
struct target_semid64_ds
|
|
{
|
|
struct target_ipc_perm sem_perm;
|
|
abi_ulong sem_otime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused1;
|
|
#endif
|
|
abi_ulong sem_ctime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused2;
|
|
#endif
|
|
abi_ulong sem_nsems;
|
|
abi_ulong __unused3;
|
|
abi_ulong __unused4;
|
|
};
|
|
#endif
|
|
|
|
static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_ipc_perm *target_ip;
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
target_ip = &(target_sd->sem_perm);
|
|
host_ip->__key = tswap32(target_ip->__key);
|
|
host_ip->uid = tswap32(target_ip->uid);
|
|
host_ip->gid = tswap32(target_ip->gid);
|
|
host_ip->cuid = tswap32(target_ip->cuid);
|
|
host_ip->cgid = tswap32(target_ip->cgid);
|
|
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
|
|
host_ip->mode = tswap32(target_ip->mode);
|
|
#else
|
|
host_ip->mode = tswap16(target_ip->mode);
|
|
#endif
|
|
#if defined(TARGET_PPC)
|
|
host_ip->__seq = tswap32(target_ip->__seq);
|
|
#else
|
|
host_ip->__seq = tswap16(target_ip->__seq);
|
|
#endif
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
|
|
struct ipc_perm *host_ip)
|
|
{
|
|
struct target_ipc_perm *target_ip;
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
target_ip = &(target_sd->sem_perm);
|
|
target_ip->__key = tswap32(host_ip->__key);
|
|
target_ip->uid = tswap32(host_ip->uid);
|
|
target_ip->gid = tswap32(host_ip->gid);
|
|
target_ip->cuid = tswap32(host_ip->cuid);
|
|
target_ip->cgid = tswap32(host_ip->cgid);
|
|
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
|
|
target_ip->mode = tswap32(host_ip->mode);
|
|
#else
|
|
target_ip->mode = tswap16(host_ip->mode);
|
|
#endif
|
|
#if defined(TARGET_PPC)
|
|
target_ip->__seq = tswap32(host_ip->__seq);
|
|
#else
|
|
target_ip->__seq = tswap16(host_ip->__seq);
|
|
#endif
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
|
|
return -TARGET_EFAULT;
|
|
host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
|
|
host_sd->sem_otime = tswapal(target_sd->sem_otime);
|
|
host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
|
|
struct semid_ds *host_sd)
|
|
{
|
|
struct target_semid64_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
|
|
return -TARGET_EFAULT;
|
|
target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
|
|
target_sd->sem_otime = tswapal(host_sd->sem_otime);
|
|
target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_seminfo {
|
|
int semmap;
|
|
int semmni;
|
|
int semmns;
|
|
int semmnu;
|
|
int semmsl;
|
|
int semopm;
|
|
int semume;
|
|
int semusz;
|
|
int semvmx;
|
|
int semaem;
|
|
};
|
|
|
|
static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
|
|
struct seminfo *host_seminfo)
|
|
{
|
|
struct target_seminfo *target_seminfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_seminfo->semmap, &target_seminfo->semmap);
|
|
__put_user(host_seminfo->semmni, &target_seminfo->semmni);
|
|
__put_user(host_seminfo->semmns, &target_seminfo->semmns);
|
|
__put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
|
|
__put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
|
|
__put_user(host_seminfo->semopm, &target_seminfo->semopm);
|
|
__put_user(host_seminfo->semume, &target_seminfo->semume);
|
|
__put_user(host_seminfo->semusz, &target_seminfo->semusz);
|
|
__put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
|
|
__put_user(host_seminfo->semaem, &target_seminfo->semaem);
|
|
unlock_user_struct(target_seminfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
union semun {
|
|
int val;
|
|
struct semid_ds *buf;
|
|
unsigned short *array;
|
|
struct seminfo *__buf;
|
|
};
|
|
|
|
union target_semun {
|
|
int val;
|
|
abi_ulong buf;
|
|
abi_ulong array;
|
|
abi_ulong __buf;
|
|
};
|
|
|
|
static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
|
|
abi_ulong target_addr)
|
|
{
|
|
int nsems;
|
|
unsigned short *array;
|
|
union semun semun;
|
|
struct semid_ds semid_ds;
|
|
int i, ret;
|
|
|
|
semun.buf = &semid_ds;
|
|
|
|
ret = semctl(semid, 0, IPC_STAT, semun);
|
|
if (ret == -1)
|
|
return get_errno(ret);
|
|
|
|
nsems = semid_ds.sem_nsems;
|
|
|
|
*host_array = g_try_new(unsigned short, nsems);
|
|
if (!*host_array) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
array = lock_user(VERIFY_READ, target_addr,
|
|
nsems*sizeof(unsigned short), 1);
|
|
if (!array) {
|
|
g_free(*host_array);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
for(i=0; i<nsems; i++) {
|
|
__get_user((*host_array)[i], &array[i]);
|
|
}
|
|
unlock_user(array, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
|
|
unsigned short **host_array)
|
|
{
|
|
int nsems;
|
|
unsigned short *array;
|
|
union semun semun;
|
|
struct semid_ds semid_ds;
|
|
int i, ret;
|
|
|
|
semun.buf = &semid_ds;
|
|
|
|
ret = semctl(semid, 0, IPC_STAT, semun);
|
|
if (ret == -1)
|
|
return get_errno(ret);
|
|
|
|
nsems = semid_ds.sem_nsems;
|
|
|
|
array = lock_user(VERIFY_WRITE, target_addr,
|
|
nsems*sizeof(unsigned short), 0);
|
|
if (!array)
|
|
return -TARGET_EFAULT;
|
|
|
|
for(i=0; i<nsems; i++) {
|
|
__put_user((*host_array)[i], &array[i]);
|
|
}
|
|
g_free(*host_array);
|
|
unlock_user(array, target_addr, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_semctl(int semid, int semnum, int cmd,
|
|
abi_ulong target_arg)
|
|
{
|
|
union target_semun target_su = { .buf = target_arg };
|
|
union semun arg;
|
|
struct semid_ds dsarg;
|
|
unsigned short *array = NULL;
|
|
struct seminfo seminfo;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
abi_long err;
|
|
cmd &= 0xff;
|
|
|
|
switch( cmd ) {
|
|
case GETVAL:
|
|
case SETVAL:
|
|
/* In 64 bit cross-endian situations, we will erroneously pick up
|
|
* the wrong half of the union for the "val" element. To rectify
|
|
* this, the entire 8-byte structure is byteswapped, followed by
|
|
* a swap of the 4 byte val field. In other cases, the data is
|
|
* already in proper host byte order. */
|
|
if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
|
|
target_su.buf = tswapal(target_su.buf);
|
|
arg.val = tswap32(target_su.val);
|
|
} else {
|
|
arg.val = target_su.val;
|
|
}
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
break;
|
|
case GETALL:
|
|
case SETALL:
|
|
err = target_to_host_semarray(semid, &array, target_su.array);
|
|
if (err)
|
|
return err;
|
|
arg.array = array;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_semarray(semid, target_su.array, &array);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case SEM_STAT:
|
|
err = target_to_host_semid_ds(&dsarg, target_su.buf);
|
|
if (err)
|
|
return err;
|
|
arg.buf = &dsarg;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_semid_ds(target_su.buf, &dsarg);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_INFO:
|
|
case SEM_INFO:
|
|
arg.__buf = &seminfo;
|
|
ret = get_errno(semctl(semid, semnum, cmd, arg));
|
|
err = host_to_target_seminfo(target_su.__buf, &seminfo);
|
|
if (err)
|
|
return err;
|
|
break;
|
|
case IPC_RMID:
|
|
case GETPID:
|
|
case GETNCNT:
|
|
case GETZCNT:
|
|
ret = get_errno(semctl(semid, semnum, cmd, NULL));
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct target_sembuf {
|
|
unsigned short sem_num;
|
|
short sem_op;
|
|
short sem_flg;
|
|
};
|
|
|
|
static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
|
|
abi_ulong target_addr,
|
|
unsigned nsops)
|
|
{
|
|
struct target_sembuf *target_sembuf;
|
|
int i;
|
|
|
|
target_sembuf = lock_user(VERIFY_READ, target_addr,
|
|
nsops*sizeof(struct target_sembuf), 1);
|
|
if (!target_sembuf)
|
|
return -TARGET_EFAULT;
|
|
|
|
for(i=0; i<nsops; i++) {
|
|
__get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
|
|
__get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
|
|
__get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
|
|
}
|
|
|
|
unlock_user(target_sembuf, target_addr, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
|
|
{
|
|
struct sembuf sops[nsops];
|
|
|
|
if (target_to_host_sembuf(sops, ptr, nsops))
|
|
return -TARGET_EFAULT;
|
|
|
|
return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
|
|
}
|
|
|
|
struct target_msqid_ds
|
|
{
|
|
struct target_ipc_perm msg_perm;
|
|
abi_ulong msg_stime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused1;
|
|
#endif
|
|
abi_ulong msg_rtime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused2;
|
|
#endif
|
|
abi_ulong msg_ctime;
|
|
#if TARGET_ABI_BITS == 32
|
|
abi_ulong __unused3;
|
|
#endif
|
|
abi_ulong __msg_cbytes;
|
|
abi_ulong msg_qnum;
|
|
abi_ulong msg_qbytes;
|
|
abi_ulong msg_lspid;
|
|
abi_ulong msg_lrpid;
|
|
abi_ulong __unused4;
|
|
abi_ulong __unused5;
|
|
};
|
|
|
|
static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_msqid_ds *target_md;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
|
|
return -TARGET_EFAULT;
|
|
host_md->msg_stime = tswapal(target_md->msg_stime);
|
|
host_md->msg_rtime = tswapal(target_md->msg_rtime);
|
|
host_md->msg_ctime = tswapal(target_md->msg_ctime);
|
|
host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
|
|
host_md->msg_qnum = tswapal(target_md->msg_qnum);
|
|
host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
|
|
host_md->msg_lspid = tswapal(target_md->msg_lspid);
|
|
host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
|
|
unlock_user_struct(target_md, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
|
|
struct msqid_ds *host_md)
|
|
{
|
|
struct target_msqid_ds *target_md;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
|
|
return -TARGET_EFAULT;
|
|
target_md->msg_stime = tswapal(host_md->msg_stime);
|
|
target_md->msg_rtime = tswapal(host_md->msg_rtime);
|
|
target_md->msg_ctime = tswapal(host_md->msg_ctime);
|
|
target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
|
|
target_md->msg_qnum = tswapal(host_md->msg_qnum);
|
|
target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
|
|
target_md->msg_lspid = tswapal(host_md->msg_lspid);
|
|
target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
|
|
unlock_user_struct(target_md, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_msginfo {
|
|
int msgpool;
|
|
int msgmap;
|
|
int msgmax;
|
|
int msgmnb;
|
|
int msgmni;
|
|
int msgssz;
|
|
int msgtql;
|
|
unsigned short int msgseg;
|
|
};
|
|
|
|
static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
|
|
struct msginfo *host_msginfo)
|
|
{
|
|
struct target_msginfo *target_msginfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
|
|
__put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
|
|
__put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
|
|
__put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
|
|
__put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
|
|
__put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
|
|
__put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
|
|
__put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
|
|
unlock_user_struct(target_msginfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
|
|
{
|
|
struct msqid_ds dsarg;
|
|
struct msginfo msginfo;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
|
|
cmd &= 0xff;
|
|
|
|
switch (cmd) {
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case MSG_STAT:
|
|
if (target_to_host_msqid_ds(&dsarg,ptr))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(msgctl(msgid, cmd, &dsarg));
|
|
if (host_to_target_msqid_ds(ptr,&dsarg))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_RMID:
|
|
ret = get_errno(msgctl(msgid, cmd, NULL));
|
|
break;
|
|
case IPC_INFO:
|
|
case MSG_INFO:
|
|
ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
|
|
if (host_to_target_msginfo(ptr, &msginfo))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct target_msgbuf {
|
|
abi_long mtype;
|
|
char mtext[1];
|
|
};
|
|
|
|
static inline abi_long do_msgsnd(int msqid, abi_long msgp,
|
|
ssize_t msgsz, int msgflg)
|
|
{
|
|
struct target_msgbuf *target_mb;
|
|
struct msgbuf *host_mb;
|
|
abi_long ret = 0;
|
|
|
|
if (msgsz < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
|
|
return -TARGET_EFAULT;
|
|
host_mb = g_try_malloc(msgsz + sizeof(long));
|
|
if (!host_mb) {
|
|
unlock_user_struct(target_mb, msgp, 0);
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
|
|
memcpy(host_mb->mtext, target_mb->mtext, msgsz);
|
|
ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
|
|
g_free(host_mb);
|
|
unlock_user_struct(target_mb, msgp, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline abi_long do_msgrcv(int msqid, abi_long msgp,
|
|
ssize_t msgsz, abi_long msgtyp,
|
|
int msgflg)
|
|
{
|
|
struct target_msgbuf *target_mb;
|
|
char *target_mtext;
|
|
struct msgbuf *host_mb;
|
|
abi_long ret = 0;
|
|
|
|
if (msgsz < 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
|
|
return -TARGET_EFAULT;
|
|
|
|
host_mb = g_try_malloc(msgsz + sizeof(long));
|
|
if (!host_mb) {
|
|
ret = -TARGET_ENOMEM;
|
|
goto end;
|
|
}
|
|
ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
|
|
|
|
if (ret > 0) {
|
|
abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
|
|
target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
|
|
if (!target_mtext) {
|
|
ret = -TARGET_EFAULT;
|
|
goto end;
|
|
}
|
|
memcpy(target_mb->mtext, host_mb->mtext, ret);
|
|
unlock_user(target_mtext, target_mtext_addr, ret);
|
|
}
|
|
|
|
target_mb->mtype = tswapal(host_mb->mtype);
|
|
|
|
end:
|
|
if (target_mb)
|
|
unlock_user_struct(target_mb, msgp, 1);
|
|
g_free(host_mb);
|
|
return ret;
|
|
}
|
|
|
|
static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_shmid_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
|
|
return -TARGET_EFAULT;
|
|
__get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
|
|
__get_user(host_sd->shm_atime, &target_sd->shm_atime);
|
|
__get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
|
|
__get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
|
|
__get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
|
|
__get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
|
|
__get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
|
|
unlock_user_struct(target_sd, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
|
|
struct shmid_ds *host_sd)
|
|
{
|
|
struct target_shmid_ds *target_sd;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
|
|
__put_user(host_sd->shm_atime, &target_sd->shm_atime);
|
|
__put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
|
|
__put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
|
|
__put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
|
|
__put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
|
|
__put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
|
|
unlock_user_struct(target_sd, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_shminfo {
|
|
abi_ulong shmmax;
|
|
abi_ulong shmmin;
|
|
abi_ulong shmmni;
|
|
abi_ulong shmseg;
|
|
abi_ulong shmall;
|
|
};
|
|
|
|
static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
|
|
struct shminfo *host_shminfo)
|
|
{
|
|
struct target_shminfo *target_shminfo;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
|
|
__put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
|
|
__put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
|
|
__put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
|
|
__put_user(host_shminfo->shmall, &target_shminfo->shmall);
|
|
unlock_user_struct(target_shminfo, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
struct target_shm_info {
|
|
int used_ids;
|
|
abi_ulong shm_tot;
|
|
abi_ulong shm_rss;
|
|
abi_ulong shm_swp;
|
|
abi_ulong swap_attempts;
|
|
abi_ulong swap_successes;
|
|
};
|
|
|
|
static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
|
|
struct shm_info *host_shm_info)
|
|
{
|
|
struct target_shm_info *target_shm_info;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
|
|
__put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
|
|
__put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
|
|
__put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
|
|
__put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
|
|
__put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
|
|
unlock_user_struct(target_shm_info, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
|
|
{
|
|
struct shmid_ds dsarg;
|
|
struct shminfo shminfo;
|
|
struct shm_info shm_info;
|
|
abi_long ret = -TARGET_EINVAL;
|
|
|
|
cmd &= 0xff;
|
|
|
|
switch(cmd) {
|
|
case IPC_STAT:
|
|
case IPC_SET:
|
|
case SHM_STAT:
|
|
if (target_to_host_shmid_ds(&dsarg, buf))
|
|
return -TARGET_EFAULT;
|
|
ret = get_errno(shmctl(shmid, cmd, &dsarg));
|
|
if (host_to_target_shmid_ds(buf, &dsarg))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_INFO:
|
|
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
|
|
if (host_to_target_shminfo(buf, &shminfo))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case SHM_INFO:
|
|
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
|
|
if (host_to_target_shm_info(buf, &shm_info))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
case IPC_RMID:
|
|
case SHM_LOCK:
|
|
case SHM_UNLOCK:
|
|
ret = get_errno(shmctl(shmid, cmd, NULL));
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
|
|
{
|
|
abi_long raddr;
|
|
void *host_raddr;
|
|
struct shmid_ds shm_info;
|
|
int i,ret;
|
|
|
|
/* find out the length of the shared memory segment */
|
|
ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
|
|
if (is_error(ret)) {
|
|
/* can't get length, bail out */
|
|
return ret;
|
|
}
|
|
|
|
mmap_lock();
|
|
|
|
if (shmaddr)
|
|
host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
|
|
else {
|
|
abi_ulong mmap_start;
|
|
|
|
mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
|
|
|
|
if (mmap_start == -1) {
|
|
errno = ENOMEM;
|
|
host_raddr = (void *)-1;
|
|
} else
|
|
host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
|
|
}
|
|
|
|
if (host_raddr == (void *)-1) {
|
|
mmap_unlock();
|
|
return get_errno((long)host_raddr);
|
|
}
|
|
raddr=h2g((unsigned long)host_raddr);
|
|
|
|
page_set_flags(raddr, raddr + shm_info.shm_segsz,
|
|
PAGE_VALID | PAGE_READ |
|
|
((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
|
|
|
|
for (i = 0; i < N_SHM_REGIONS; i++) {
|
|
if (!shm_regions[i].in_use) {
|
|
shm_regions[i].in_use = true;
|
|
shm_regions[i].start = raddr;
|
|
shm_regions[i].size = shm_info.shm_segsz;
|
|
break;
|
|
}
|
|
}
|
|
|
|
mmap_unlock();
|
|
return raddr;
|
|
|
|
}
|
|
|
|
static inline abi_long do_shmdt(abi_ulong shmaddr)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < N_SHM_REGIONS; ++i) {
|
|
if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
|
|
shm_regions[i].in_use = false;
|
|
page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return get_errno(shmdt(g2h(shmaddr)));
|
|
}
|
|
|
|
#ifdef TARGET_NR_ipc
|
|
/* ??? This only works with linear mappings. */
|
|
/* do_ipc() must return target values and target errnos. */
|
|
static abi_long do_ipc(unsigned int call, abi_long first,
|
|
abi_long second, abi_long third,
|
|
abi_long ptr, abi_long fifth)
|
|
{
|
|
int version;
|
|
abi_long ret = 0;
|
|
|
|
version = call >> 16;
|
|
call &= 0xffff;
|
|
|
|
switch (call) {
|
|
case IPCOP_semop:
|
|
ret = do_semop(first, ptr, second);
|
|
break;
|
|
|
|
case IPCOP_semget:
|
|
ret = get_errno(semget(first, second, third));
|
|
break;
|
|
|
|
case IPCOP_semctl: {
|
|
/* The semun argument to semctl is passed by value, so dereference the
|
|
* ptr argument. */
|
|
abi_ulong atptr;
|
|
get_user_ual(atptr, ptr);
|
|
ret = do_semctl(first, second, third, atptr);
|
|
break;
|
|
}
|
|
|
|
case IPCOP_msgget:
|
|
ret = get_errno(msgget(first, second));
|
|
break;
|
|
|
|
case IPCOP_msgsnd:
|
|
ret = do_msgsnd(first, ptr, second, third);
|
|
break;
|
|
|
|
case IPCOP_msgctl:
|
|
ret = do_msgctl(first, second, ptr);
|
|
break;
|
|
|
|
case IPCOP_msgrcv:
|
|
switch (version) {
|
|
case 0:
|
|
{
|
|
struct target_ipc_kludge {
|
|
abi_long msgp;
|
|
abi_long msgtyp;
|
|
} *tmp;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
|
|
ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
|
|
|
|
unlock_user_struct(tmp, ptr, 0);
|
|
break;
|
|
}
|
|
default:
|
|
ret = do_msgrcv(first, ptr, second, fifth, third);
|
|
}
|
|
break;
|
|
|
|
case IPCOP_shmat:
|
|
switch (version) {
|
|
default:
|
|
{
|
|
abi_ulong raddr;
|
|
raddr = do_shmat(first, ptr, second);
|
|
if (is_error(raddr))
|
|
return get_errno(raddr);
|
|
if (put_user_ual(raddr, third))
|
|
return -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
case 1:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
break;
|
|
case IPCOP_shmdt:
|
|
ret = do_shmdt(ptr);
|
|
break;
|
|
|
|
case IPCOP_shmget:
|
|
/* IPC_* flag values are the same on all linux platforms */
|
|
ret = get_errno(shmget(first, second, third));
|
|
break;
|
|
|
|
/* IPC_* and SHM_* command values are the same on all linux platforms */
|
|
case IPCOP_shmctl:
|
|
ret = do_shmctl(first, second, ptr);
|
|
break;
|
|
default:
|
|
gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* kernel structure types definitions */
|
|
|
|
#define STRUCT(name, ...) STRUCT_ ## name,
|
|
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
|
|
enum {
|
|
#include "syscall_types.h"
|
|
STRUCT_MAX
|
|
};
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
|
|
#define STRUCT_SPECIAL(name)
|
|
#include "syscall_types.h"
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
typedef struct IOCTLEntry IOCTLEntry;
|
|
|
|
typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg);
|
|
|
|
struct IOCTLEntry {
|
|
int target_cmd;
|
|
unsigned int host_cmd;
|
|
const char *name;
|
|
int access;
|
|
do_ioctl_fn *do_ioctl;
|
|
const argtype arg_type[5];
|
|
};
|
|
|
|
#define IOC_R 0x0001
|
|
#define IOC_W 0x0002
|
|
#define IOC_RW (IOC_R | IOC_W)
|
|
|
|
#define MAX_STRUCT_SIZE 4096
|
|
|
|
#ifdef CONFIG_FIEMAP
|
|
/* So fiemap access checks don't overflow on 32 bit systems.
|
|
* This is very slightly smaller than the limit imposed by
|
|
* the underlying kernel.
|
|
*/
|
|
#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
|
|
/ sizeof(struct fiemap_extent))
|
|
|
|
static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
/* The parameter for this ioctl is a struct fiemap followed
|
|
* by an array of struct fiemap_extent whose size is set
|
|
* in fiemap->fm_extent_count. The array is filled in by the
|
|
* ioctl.
|
|
*/
|
|
int target_size_in, target_size_out;
|
|
struct fiemap *fm;
|
|
const argtype *arg_type = ie->arg_type;
|
|
const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
|
|
void *argptr, *p;
|
|
abi_long ret;
|
|
int i, extent_size = thunk_type_size(extent_arg_type, 0);
|
|
uint32_t outbufsz;
|
|
int free_fm = 0;
|
|
|
|
assert(arg_type[0] == TYPE_PTR);
|
|
assert(ie->access == IOC_RW);
|
|
arg_type++;
|
|
target_size_in = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
|
|
if (!argptr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
fm = (struct fiemap *)buf_temp;
|
|
if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
outbufsz = sizeof (*fm) +
|
|
(sizeof(struct fiemap_extent) * fm->fm_extent_count);
|
|
|
|
if (outbufsz > MAX_STRUCT_SIZE) {
|
|
/* We can't fit all the extents into the fixed size buffer.
|
|
* Allocate one that is large enough and use it instead.
|
|
*/
|
|
fm = g_try_malloc(outbufsz);
|
|
if (!fm) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
memcpy(fm, buf_temp, sizeof(struct fiemap));
|
|
free_fm = 1;
|
|
}
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
|
|
if (!is_error(ret)) {
|
|
target_size_out = target_size_in;
|
|
/* An extent_count of 0 means we were only counting the extents
|
|
* so there are no structs to copy
|
|
*/
|
|
if (fm->fm_extent_count != 0) {
|
|
target_size_out += fm->fm_mapped_extents * extent_size;
|
|
}
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
/* Convert the struct fiemap */
|
|
thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
|
|
if (fm->fm_extent_count != 0) {
|
|
p = argptr + target_size_in;
|
|
/* ...and then all the struct fiemap_extents */
|
|
for (i = 0; i < fm->fm_mapped_extents; i++) {
|
|
thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
|
|
THUNK_TARGET);
|
|
p += extent_size;
|
|
}
|
|
}
|
|
unlock_user(argptr, arg, target_size_out);
|
|
}
|
|
}
|
|
if (free_fm) {
|
|
g_free(fm);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype *arg_type = ie->arg_type;
|
|
int target_size;
|
|
void *argptr;
|
|
int ret;
|
|
struct ifconf *host_ifconf;
|
|
uint32_t outbufsz;
|
|
const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
|
|
int target_ifreq_size;
|
|
int nb_ifreq;
|
|
int free_buf = 0;
|
|
int i;
|
|
int target_ifc_len;
|
|
abi_long target_ifc_buf;
|
|
int host_ifc_len;
|
|
char *host_ifc_buf;
|
|
|
|
assert(arg_type[0] == TYPE_PTR);
|
|
assert(ie->access == IOC_RW);
|
|
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
|
|
target_ifc_len = host_ifconf->ifc_len;
|
|
target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
|
|
|
|
target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
|
|
nb_ifreq = target_ifc_len / target_ifreq_size;
|
|
host_ifc_len = nb_ifreq * sizeof(struct ifreq);
|
|
|
|
outbufsz = sizeof(*host_ifconf) + host_ifc_len;
|
|
if (outbufsz > MAX_STRUCT_SIZE) {
|
|
/* We can't fit all the extents into the fixed size buffer.
|
|
* Allocate one that is large enough and use it instead.
|
|
*/
|
|
host_ifconf = malloc(outbufsz);
|
|
if (!host_ifconf) {
|
|
return -TARGET_ENOMEM;
|
|
}
|
|
memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
|
|
free_buf = 1;
|
|
}
|
|
host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
|
|
|
|
host_ifconf->ifc_len = host_ifc_len;
|
|
host_ifconf->ifc_buf = host_ifc_buf;
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
|
|
if (!is_error(ret)) {
|
|
/* convert host ifc_len to target ifc_len */
|
|
|
|
nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
|
|
target_ifc_len = nb_ifreq * target_ifreq_size;
|
|
host_ifconf->ifc_len = target_ifc_len;
|
|
|
|
/* restore target ifc_buf */
|
|
|
|
host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
|
|
|
|
/* copy struct ifconf to target user */
|
|
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
|
|
/* copy ifreq[] to target user */
|
|
|
|
argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
|
|
for (i = 0; i < nb_ifreq ; i++) {
|
|
thunk_convert(argptr + i * target_ifreq_size,
|
|
host_ifc_buf + i * sizeof(struct ifreq),
|
|
ifreq_arg_type, THUNK_TARGET);
|
|
}
|
|
unlock_user(argptr, target_ifc_buf, target_ifc_len);
|
|
}
|
|
|
|
if (free_buf) {
|
|
free(host_ifconf);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
|
|
int cmd, abi_long arg)
|
|
{
|
|
void *argptr;
|
|
struct dm_ioctl *host_dm;
|
|
abi_long guest_data;
|
|
uint32_t guest_data_size;
|
|
int target_size;
|
|
const argtype *arg_type = ie->arg_type;
|
|
abi_long ret;
|
|
void *big_buf = NULL;
|
|
char *host_data;
|
|
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
/* buf_temp is too small, so fetch things into a bigger buffer */
|
|
big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
|
|
memcpy(big_buf, buf_temp, target_size);
|
|
buf_temp = big_buf;
|
|
host_dm = big_buf;
|
|
|
|
guest_data = arg + host_dm->data_start;
|
|
if ((guest_data - arg) < 0) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
guest_data_size = host_dm->data_size - host_dm->data_start;
|
|
host_data = (char*)host_dm + host_dm->data_start;
|
|
|
|
argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
|
|
switch (ie->host_cmd) {
|
|
case DM_REMOVE_ALL:
|
|
case DM_LIST_DEVICES:
|
|
case DM_DEV_CREATE:
|
|
case DM_DEV_REMOVE:
|
|
case DM_DEV_SUSPEND:
|
|
case DM_DEV_STATUS:
|
|
case DM_DEV_WAIT:
|
|
case DM_TABLE_STATUS:
|
|
case DM_TABLE_CLEAR:
|
|
case DM_TABLE_DEPS:
|
|
case DM_LIST_VERSIONS:
|
|
/* no input data */
|
|
break;
|
|
case DM_DEV_RENAME:
|
|
case DM_DEV_SET_GEOMETRY:
|
|
/* data contains only strings */
|
|
memcpy(host_data, argptr, guest_data_size);
|
|
break;
|
|
case DM_TARGET_MSG:
|
|
memcpy(host_data, argptr, guest_data_size);
|
|
*(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
|
|
break;
|
|
case DM_TABLE_LOAD:
|
|
{
|
|
void *gspec = argptr;
|
|
void *cur_data = host_data;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
|
|
int spec_size = thunk_type_size(arg_type, 0);
|
|
int i;
|
|
|
|
for (i = 0; i < host_dm->target_count; i++) {
|
|
struct dm_target_spec *spec = cur_data;
|
|
uint32_t next;
|
|
int slen;
|
|
|
|
thunk_convert(spec, gspec, arg_type, THUNK_HOST);
|
|
slen = strlen((char*)gspec + spec_size) + 1;
|
|
next = spec->next;
|
|
spec->next = sizeof(*spec) + slen;
|
|
strcpy((char*)&spec[1], gspec + spec_size);
|
|
gspec += next;
|
|
cur_data += spec->next;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
unlock_user(argptr, guest_data, 0);
|
|
goto out;
|
|
}
|
|
unlock_user(argptr, guest_data, 0);
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
guest_data = arg + host_dm->data_start;
|
|
guest_data_size = host_dm->data_size - host_dm->data_start;
|
|
argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
|
|
switch (ie->host_cmd) {
|
|
case DM_REMOVE_ALL:
|
|
case DM_DEV_CREATE:
|
|
case DM_DEV_REMOVE:
|
|
case DM_DEV_RENAME:
|
|
case DM_DEV_SUSPEND:
|
|
case DM_DEV_STATUS:
|
|
case DM_TABLE_LOAD:
|
|
case DM_TABLE_CLEAR:
|
|
case DM_TARGET_MSG:
|
|
case DM_DEV_SET_GEOMETRY:
|
|
/* no return data */
|
|
break;
|
|
case DM_LIST_DEVICES:
|
|
{
|
|
struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
|
|
uint32_t remaining_data = guest_data_size;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
|
|
int nl_size = 12; /* can't use thunk_size due to alignment */
|
|
|
|
while (1) {
|
|
uint32_t next = nl->next;
|
|
if (next) {
|
|
nl->next = nl_size + (strlen(nl->name) + 1);
|
|
}
|
|
if (remaining_data < nl->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + nl_size, nl->name);
|
|
cur_data += nl->next;
|
|
remaining_data -= nl->next;
|
|
if (!next) {
|
|
break;
|
|
}
|
|
nl = (void*)nl + next;
|
|
}
|
|
break;
|
|
}
|
|
case DM_DEV_WAIT:
|
|
case DM_TABLE_STATUS:
|
|
{
|
|
struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
|
|
int spec_size = thunk_type_size(arg_type, 0);
|
|
int i;
|
|
|
|
for (i = 0; i < host_dm->target_count; i++) {
|
|
uint32_t next = spec->next;
|
|
int slen = strlen((char*)&spec[1]) + 1;
|
|
spec->next = (cur_data - argptr) + spec_size + slen;
|
|
if (guest_data_size < spec->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + spec_size, (char*)&spec[1]);
|
|
cur_data = argptr + spec->next;
|
|
spec = (void*)host_dm + host_dm->data_start + next;
|
|
}
|
|
break;
|
|
}
|
|
case DM_TABLE_DEPS:
|
|
{
|
|
void *hdata = (void*)host_dm + host_dm->data_start;
|
|
int count = *(uint32_t*)hdata;
|
|
uint64_t *hdev = hdata + 8;
|
|
uint64_t *gdev = argptr + 8;
|
|
int i;
|
|
|
|
*(uint32_t*)argptr = tswap32(count);
|
|
for (i = 0; i < count; i++) {
|
|
*gdev = tswap64(*hdev);
|
|
gdev++;
|
|
hdev++;
|
|
}
|
|
break;
|
|
}
|
|
case DM_LIST_VERSIONS:
|
|
{
|
|
struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
|
|
uint32_t remaining_data = guest_data_size;
|
|
void *cur_data = argptr;
|
|
const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
|
|
int vers_size = thunk_type_size(arg_type, 0);
|
|
|
|
while (1) {
|
|
uint32_t next = vers->next;
|
|
if (next) {
|
|
vers->next = vers_size + (strlen(vers->name) + 1);
|
|
}
|
|
if (remaining_data < vers->next) {
|
|
host_dm->flags |= DM_BUFFER_FULL_FLAG;
|
|
break;
|
|
}
|
|
thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
|
|
strcpy(cur_data + vers_size, vers->name);
|
|
cur_data += vers->next;
|
|
remaining_data -= vers->next;
|
|
if (!next) {
|
|
break;
|
|
}
|
|
vers = (void*)vers + next;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
unlock_user(argptr, guest_data, 0);
|
|
ret = -TARGET_EINVAL;
|
|
goto out;
|
|
}
|
|
unlock_user(argptr, guest_data, guest_data_size);
|
|
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
out:
|
|
g_free(big_buf);
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
|
|
int cmd, abi_long arg)
|
|
{
|
|
void *argptr;
|
|
int target_size;
|
|
const argtype *arg_type = ie->arg_type;
|
|
const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
|
|
abi_long ret;
|
|
|
|
struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
|
|
struct blkpg_partition host_part;
|
|
|
|
/* Read and convert blkpg */
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
switch (host_blkpg->op) {
|
|
case BLKPG_ADD_PARTITION:
|
|
case BLKPG_DEL_PARTITION:
|
|
/* payload is struct blkpg_partition */
|
|
break;
|
|
default:
|
|
/* Unknown opcode */
|
|
ret = -TARGET_EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
/* Read and convert blkpg->data */
|
|
arg = (abi_long)(uintptr_t)host_blkpg->data;
|
|
target_size = thunk_type_size(part_arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
ret = -TARGET_EFAULT;
|
|
goto out;
|
|
}
|
|
thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
/* Swizzle the data pointer to our local copy and call! */
|
|
host_blkpg->data = &host_part;
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
const argtype *arg_type = ie->arg_type;
|
|
const StructEntry *se;
|
|
const argtype *field_types;
|
|
const int *dst_offsets, *src_offsets;
|
|
int target_size;
|
|
void *argptr;
|
|
abi_ulong *target_rt_dev_ptr;
|
|
unsigned long *host_rt_dev_ptr;
|
|
abi_long ret;
|
|
int i;
|
|
|
|
assert(ie->access == IOC_W);
|
|
assert(*arg_type == TYPE_PTR);
|
|
arg_type++;
|
|
assert(*arg_type == TYPE_STRUCT);
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
arg_type++;
|
|
assert(*arg_type == (int)STRUCT_rtentry);
|
|
se = struct_entries + *arg_type++;
|
|
assert(se->convert[0] == NULL);
|
|
/* convert struct here to be able to catch rt_dev string */
|
|
field_types = se->field_types;
|
|
dst_offsets = se->field_offsets[THUNK_HOST];
|
|
src_offsets = se->field_offsets[THUNK_TARGET];
|
|
for (i = 0; i < se->nb_fields; i++) {
|
|
if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
|
|
assert(*field_types == TYPE_PTRVOID);
|
|
target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
|
|
host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
|
|
if (*target_rt_dev_ptr != 0) {
|
|
*host_rt_dev_ptr = (unsigned long)lock_user_string(
|
|
tswapal(*target_rt_dev_ptr));
|
|
if (!*host_rt_dev_ptr) {
|
|
unlock_user(argptr, arg, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
} else {
|
|
*host_rt_dev_ptr = 0;
|
|
}
|
|
field_types++;
|
|
continue;
|
|
}
|
|
field_types = thunk_convert(buf_temp + dst_offsets[i],
|
|
argptr + src_offsets[i],
|
|
field_types, THUNK_HOST);
|
|
}
|
|
unlock_user(argptr, arg, 0);
|
|
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (*host_rt_dev_ptr != 0) {
|
|
unlock_user((void *)*host_rt_dev_ptr,
|
|
*target_rt_dev_ptr, 0);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
|
|
int fd, int cmd, abi_long arg)
|
|
{
|
|
int sig = target_to_host_signal(arg);
|
|
return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
|
|
}
|
|
|
|
static IOCTLEntry ioctl_entries[] = {
|
|
#define IOCTL(cmd, access, ...) \
|
|
{ TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
|
|
#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
|
|
{ TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
|
|
#include "ioctls.h"
|
|
{ 0, 0, },
|
|
};
|
|
|
|
/* ??? Implement proper locking for ioctls. */
|
|
/* do_ioctl() Must return target values and target errnos. */
|
|
static abi_long do_ioctl(int fd, int cmd, abi_long arg)
|
|
{
|
|
const IOCTLEntry *ie;
|
|
const argtype *arg_type;
|
|
abi_long ret;
|
|
uint8_t buf_temp[MAX_STRUCT_SIZE];
|
|
int target_size;
|
|
void *argptr;
|
|
|
|
ie = ioctl_entries;
|
|
for(;;) {
|
|
if (ie->target_cmd == 0) {
|
|
gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
if (ie->target_cmd == cmd)
|
|
break;
|
|
ie++;
|
|
}
|
|
arg_type = ie->arg_type;
|
|
#if defined(DEBUG)
|
|
gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
|
|
#endif
|
|
if (ie->do_ioctl) {
|
|
return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
|
|
}
|
|
|
|
switch(arg_type[0]) {
|
|
case TYPE_NULL:
|
|
/* no argument */
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd));
|
|
break;
|
|
case TYPE_PTRVOID:
|
|
case TYPE_INT:
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
|
|
break;
|
|
case TYPE_PTR:
|
|
arg_type++;
|
|
target_size = thunk_type_size(arg_type, 0);
|
|
switch(ie->access) {
|
|
case IOC_R:
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
break;
|
|
case IOC_W:
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
break;
|
|
default:
|
|
case IOC_RW:
|
|
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
|
|
unlock_user(argptr, arg, 0);
|
|
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
|
|
if (!is_error(ret)) {
|
|
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
|
|
if (!argptr)
|
|
return -TARGET_EFAULT;
|
|
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
|
|
unlock_user(argptr, arg, target_size);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
|
|
(long)cmd, arg_type[0]);
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static const bitmask_transtbl iflag_tbl[] = {
|
|
{ TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
|
|
{ TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
|
|
{ TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
|
|
{ TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
|
|
{ TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
|
|
{ TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
|
|
{ TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
|
|
{ TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
|
|
{ TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
|
|
{ TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
|
|
{ TARGET_IXON, TARGET_IXON, IXON, IXON },
|
|
{ TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
|
|
{ TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
|
|
{ TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl oflag_tbl[] = {
|
|
{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
|
|
{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
|
|
{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
|
|
{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
|
|
{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
|
|
{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
|
|
{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
|
|
{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
|
|
{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
|
|
{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
|
|
{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
|
|
{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
|
|
{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
|
|
{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
|
|
{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
|
|
{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
|
|
{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
|
|
{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
|
|
{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
|
|
{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
|
|
{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
|
|
{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
|
|
{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
|
|
{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl cflag_tbl[] = {
|
|
{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
|
|
{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
|
|
{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
|
|
{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
|
|
{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
|
|
{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
|
|
{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
|
|
{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
|
|
{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
|
|
{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
|
|
{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
|
|
{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
|
|
{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
|
|
{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
|
|
{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
|
|
{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
|
|
{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
|
|
{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
|
|
{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
|
|
{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
|
|
{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
|
|
{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
|
|
{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
|
|
{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
|
|
{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
|
|
{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
|
|
{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
|
|
{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
|
|
{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
|
|
{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
|
|
{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static const bitmask_transtbl lflag_tbl[] = {
|
|
{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
|
|
{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
|
|
{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
|
|
{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
|
|
{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
|
|
{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
|
|
{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
|
|
{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
|
|
{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
|
|
{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
|
|
{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
|
|
{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
|
|
{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
|
|
{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
|
|
{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static void target_to_host_termios (void *dst, const void *src)
|
|
{
|
|
struct host_termios *host = dst;
|
|
const struct target_termios *target = src;
|
|
|
|
host->c_iflag =
|
|
target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
|
|
host->c_oflag =
|
|
target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
|
|
host->c_cflag =
|
|
target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
|
|
host->c_lflag =
|
|
target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
|
|
host->c_line = target->c_line;
|
|
|
|
memset(host->c_cc, 0, sizeof(host->c_cc));
|
|
host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
|
|
host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
|
|
host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
|
|
host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
|
|
host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
|
|
host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
|
|
host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
|
|
host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
|
|
host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
|
|
host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
|
|
host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
|
|
host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
|
|
host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
|
|
host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
|
|
host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
|
|
host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
|
|
host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
|
|
}
|
|
|
|
static void host_to_target_termios (void *dst, const void *src)
|
|
{
|
|
struct target_termios *target = dst;
|
|
const struct host_termios *host = src;
|
|
|
|
target->c_iflag =
|
|
tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
|
|
target->c_oflag =
|
|
tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
|
|
target->c_cflag =
|
|
tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
|
|
target->c_lflag =
|
|
tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
|
|
target->c_line = host->c_line;
|
|
|
|
memset(target->c_cc, 0, sizeof(target->c_cc));
|
|
target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
|
|
target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
|
|
target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
|
|
target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
|
|
target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
|
|
target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
|
|
target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
|
|
target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
|
|
target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
|
|
target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
|
|
target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
|
|
target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
|
|
target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
|
|
target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
|
|
target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
|
|
target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
|
|
target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
|
|
}
|
|
|
|
static const StructEntry struct_termios_def = {
|
|
.convert = { host_to_target_termios, target_to_host_termios },
|
|
.size = { sizeof(struct target_termios), sizeof(struct host_termios) },
|
|
.align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
|
|
};
|
|
|
|
static bitmask_transtbl mmap_flags_tbl[] = {
|
|
{ TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
|
|
{ TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
|
|
{ TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
|
|
{ TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
|
|
{ TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
|
|
{ TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
|
|
{ TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
|
|
{ TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
|
|
{ TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, MAP_NORESERVE,
|
|
MAP_NORESERVE },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
#if defined(TARGET_I386)
|
|
|
|
/* NOTE: there is really one LDT for all the threads */
|
|
static uint8_t *ldt_table;
|
|
|
|
static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
|
|
{
|
|
int size;
|
|
void *p;
|
|
|
|
if (!ldt_table)
|
|
return 0;
|
|
size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
|
|
if (size > bytecount)
|
|
size = bytecount;
|
|
p = lock_user(VERIFY_WRITE, ptr, size, 0);
|
|
if (!p)
|
|
return -TARGET_EFAULT;
|
|
/* ??? Should this by byteswapped? */
|
|
memcpy(p, ldt_table, size);
|
|
unlock_user(p, ptr, size);
|
|
return size;
|
|
}
|
|
|
|
/* XXX: add locking support */
|
|
static abi_long write_ldt(CPUX86State *env,
|
|
abi_ulong ptr, unsigned long bytecount, int oldmode)
|
|
{
|
|
struct target_modify_ldt_ldt_s ldt_info;
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
|
|
if (bytecount != sizeof(ldt_info))
|
|
return -TARGET_EINVAL;
|
|
if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
|
|
return -TARGET_EFAULT;
|
|
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
|
|
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
|
|
ldt_info.limit = tswap32(target_ldt_info->limit);
|
|
ldt_info.flags = tswap32(target_ldt_info->flags);
|
|
unlock_user_struct(target_ldt_info, ptr, 0);
|
|
|
|
if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
|
|
return -TARGET_EINVAL;
|
|
seg_32bit = ldt_info.flags & 1;
|
|
contents = (ldt_info.flags >> 1) & 3;
|
|
read_exec_only = (ldt_info.flags >> 3) & 1;
|
|
limit_in_pages = (ldt_info.flags >> 4) & 1;
|
|
seg_not_present = (ldt_info.flags >> 5) & 1;
|
|
useable = (ldt_info.flags >> 6) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (ldt_info.flags >> 7) & 1;
|
|
#endif
|
|
if (contents == 3) {
|
|
if (oldmode)
|
|
return -TARGET_EINVAL;
|
|
if (seg_not_present == 0)
|
|
return -TARGET_EINVAL;
|
|
}
|
|
/* allocate the LDT */
|
|
if (!ldt_table) {
|
|
env->ldt.base = target_mmap(0,
|
|
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
|
|
if (env->ldt.base == -1)
|
|
return -TARGET_ENOMEM;
|
|
memset(g2h(env->ldt.base), 0,
|
|
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
|
|
env->ldt.limit = 0xffff;
|
|
ldt_table = g2h(env->ldt.base);
|
|
}
|
|
|
|
/* NOTE: same code as Linux kernel */
|
|
/* Allow LDTs to be cleared by the user. */
|
|
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
|
|
if (oldmode ||
|
|
(contents == 0 &&
|
|
read_exec_only == 1 &&
|
|
seg_32bit == 0 &&
|
|
limit_in_pages == 0 &&
|
|
seg_not_present == 1 &&
|
|
useable == 0 )) {
|
|
entry_1 = 0;
|
|
entry_2 = 0;
|
|
goto install;
|
|
}
|
|
}
|
|
|
|
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
|
|
(ldt_info.limit & 0x0ffff);
|
|
entry_2 = (ldt_info.base_addr & 0xff000000) |
|
|
((ldt_info.base_addr & 0x00ff0000) >> 16) |
|
|
(ldt_info.limit & 0xf0000) |
|
|
((read_exec_only ^ 1) << 9) |
|
|
(contents << 10) |
|
|
((seg_not_present ^ 1) << 15) |
|
|
(seg_32bit << 22) |
|
|
(limit_in_pages << 23) |
|
|
(lm << 21) |
|
|
0x7000;
|
|
if (!oldmode)
|
|
entry_2 |= (useable << 20);
|
|
|
|
/* Install the new entry ... */
|
|
install:
|
|
lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
|
|
lp[0] = tswap32(entry_1);
|
|
lp[1] = tswap32(entry_2);
|
|
return 0;
|
|
}
|
|
|
|
/* specific and weird i386 syscalls */
|
|
static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
|
|
unsigned long bytecount)
|
|
{
|
|
abi_long ret;
|
|
|
|
switch (func) {
|
|
case 0:
|
|
ret = read_ldt(ptr, bytecount);
|
|
break;
|
|
case 1:
|
|
ret = write_ldt(env, ptr, bytecount, 1);
|
|
break;
|
|
case 0x11:
|
|
ret = write_ldt(env, ptr, bytecount, 0);
|
|
break;
|
|
default:
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#if defined(TARGET_I386) && defined(TARGET_ABI32)
|
|
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
|
|
{
|
|
uint64_t *gdt_table = g2h(env->gdt.base);
|
|
struct target_modify_ldt_ldt_s ldt_info;
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
int i;
|
|
|
|
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
|
|
if (!target_ldt_info)
|
|
return -TARGET_EFAULT;
|
|
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
|
|
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
|
|
ldt_info.limit = tswap32(target_ldt_info->limit);
|
|
ldt_info.flags = tswap32(target_ldt_info->flags);
|
|
if (ldt_info.entry_number == -1) {
|
|
for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
|
|
if (gdt_table[i] == 0) {
|
|
ldt_info.entry_number = i;
|
|
target_ldt_info->entry_number = tswap32(i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
|
|
if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
|
|
ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
|
|
return -TARGET_EINVAL;
|
|
seg_32bit = ldt_info.flags & 1;
|
|
contents = (ldt_info.flags >> 1) & 3;
|
|
read_exec_only = (ldt_info.flags >> 3) & 1;
|
|
limit_in_pages = (ldt_info.flags >> 4) & 1;
|
|
seg_not_present = (ldt_info.flags >> 5) & 1;
|
|
useable = (ldt_info.flags >> 6) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (ldt_info.flags >> 7) & 1;
|
|
#endif
|
|
|
|
if (contents == 3) {
|
|
if (seg_not_present == 0)
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
/* NOTE: same code as Linux kernel */
|
|
/* Allow LDTs to be cleared by the user. */
|
|
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
|
|
if ((contents == 0 &&
|
|
read_exec_only == 1 &&
|
|
seg_32bit == 0 &&
|
|
limit_in_pages == 0 &&
|
|
seg_not_present == 1 &&
|
|
useable == 0 )) {
|
|
entry_1 = 0;
|
|
entry_2 = 0;
|
|
goto install;
|
|
}
|
|
}
|
|
|
|
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
|
|
(ldt_info.limit & 0x0ffff);
|
|
entry_2 = (ldt_info.base_addr & 0xff000000) |
|
|
((ldt_info.base_addr & 0x00ff0000) >> 16) |
|
|
(ldt_info.limit & 0xf0000) |
|
|
((read_exec_only ^ 1) << 9) |
|
|
(contents << 10) |
|
|
((seg_not_present ^ 1) << 15) |
|
|
(seg_32bit << 22) |
|
|
(limit_in_pages << 23) |
|
|
(useable << 20) |
|
|
(lm << 21) |
|
|
0x7000;
|
|
|
|
/* Install the new entry ... */
|
|
install:
|
|
lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
|
|
lp[0] = tswap32(entry_1);
|
|
lp[1] = tswap32(entry_2);
|
|
return 0;
|
|
}
|
|
|
|
static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
|
|
{
|
|
struct target_modify_ldt_ldt_s *target_ldt_info;
|
|
uint64_t *gdt_table = g2h(env->gdt.base);
|
|
uint32_t base_addr, limit, flags;
|
|
int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
|
|
int seg_not_present, useable, lm;
|
|
uint32_t *lp, entry_1, entry_2;
|
|
|
|
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
|
|
if (!target_ldt_info)
|
|
return -TARGET_EFAULT;
|
|
idx = tswap32(target_ldt_info->entry_number);
|
|
if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
|
|
idx > TARGET_GDT_ENTRY_TLS_MAX) {
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
return -TARGET_EINVAL;
|
|
}
|
|
lp = (uint32_t *)(gdt_table + idx);
|
|
entry_1 = tswap32(lp[0]);
|
|
entry_2 = tswap32(lp[1]);
|
|
|
|
read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
|
|
contents = (entry_2 >> 10) & 3;
|
|
seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
|
|
seg_32bit = (entry_2 >> 22) & 1;
|
|
limit_in_pages = (entry_2 >> 23) & 1;
|
|
useable = (entry_2 >> 20) & 1;
|
|
#ifdef TARGET_ABI32
|
|
lm = 0;
|
|
#else
|
|
lm = (entry_2 >> 21) & 1;
|
|
#endif
|
|
flags = (seg_32bit << 0) | (contents << 1) |
|
|
(read_exec_only << 3) | (limit_in_pages << 4) |
|
|
(seg_not_present << 5) | (useable << 6) | (lm << 7);
|
|
limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
|
|
base_addr = (entry_1 >> 16) |
|
|
(entry_2 & 0xff000000) |
|
|
((entry_2 & 0xff) << 16);
|
|
target_ldt_info->base_addr = tswapal(base_addr);
|
|
target_ldt_info->limit = tswap32(limit);
|
|
target_ldt_info->flags = tswap32(flags);
|
|
unlock_user_struct(target_ldt_info, ptr, 1);
|
|
return 0;
|
|
}
|
|
#endif /* TARGET_I386 && TARGET_ABI32 */
|
|
|
|
#ifndef TARGET_ABI32
|
|
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
|
|
{
|
|
abi_long ret = 0;
|
|
abi_ulong val;
|
|
int idx;
|
|
|
|
switch(code) {
|
|
case TARGET_ARCH_SET_GS:
|
|
case TARGET_ARCH_SET_FS:
|
|
if (code == TARGET_ARCH_SET_GS)
|
|
idx = R_GS;
|
|
else
|
|
idx = R_FS;
|
|
cpu_x86_load_seg(env, idx, 0);
|
|
env->segs[idx].base = addr;
|
|
break;
|
|
case TARGET_ARCH_GET_GS:
|
|
case TARGET_ARCH_GET_FS:
|
|
if (code == TARGET_ARCH_GET_GS)
|
|
idx = R_GS;
|
|
else
|
|
idx = R_FS;
|
|
val = env->segs[idx].base;
|
|
if (put_user(val, addr, abi_ulong))
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#endif /* defined(TARGET_I386) */
|
|
|
|
#define NEW_STACK_SIZE 0x40000
|
|
|
|
|
|
static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
|
|
typedef struct {
|
|
CPUArchState *env;
|
|
pthread_mutex_t mutex;
|
|
pthread_cond_t cond;
|
|
pthread_t thread;
|
|
uint32_t tid;
|
|
abi_ulong child_tidptr;
|
|
abi_ulong parent_tidptr;
|
|
sigset_t sigmask;
|
|
} new_thread_info;
|
|
|
|
static void *clone_func(void *arg)
|
|
{
|
|
new_thread_info *info = arg;
|
|
CPUArchState *env;
|
|
CPUState *cpu;
|
|
TaskState *ts;
|
|
|
|
rcu_register_thread();
|
|
env = info->env;
|
|
cpu = ENV_GET_CPU(env);
|
|
thread_cpu = cpu;
|
|
ts = (TaskState *)cpu->opaque;
|
|
info->tid = gettid();
|
|
cpu->host_tid = info->tid;
|
|
task_settid(ts);
|
|
if (info->child_tidptr)
|
|
put_user_u32(info->tid, info->child_tidptr);
|
|
if (info->parent_tidptr)
|
|
put_user_u32(info->tid, info->parent_tidptr);
|
|
/* Enable signals. */
|
|
sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
|
|
/* Signal to the parent that we're ready. */
|
|
pthread_mutex_lock(&info->mutex);
|
|
pthread_cond_broadcast(&info->cond);
|
|
pthread_mutex_unlock(&info->mutex);
|
|
/* Wait until the parent has finshed initializing the tls state. */
|
|
pthread_mutex_lock(&clone_lock);
|
|
pthread_mutex_unlock(&clone_lock);
|
|
cpu_loop(env);
|
|
/* never exits */
|
|
return NULL;
|
|
}
|
|
|
|
/* do_fork() Must return host values and target errnos (unlike most
|
|
do_*() functions). */
|
|
static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
|
|
abi_ulong parent_tidptr, target_ulong newtls,
|
|
abi_ulong child_tidptr)
|
|
{
|
|
CPUState *cpu = ENV_GET_CPU(env);
|
|
int ret;
|
|
TaskState *ts;
|
|
CPUState *new_cpu;
|
|
CPUArchState *new_env;
|
|
unsigned int nptl_flags;
|
|
sigset_t sigmask;
|
|
|
|
/* Emulate vfork() with fork() */
|
|
if (flags & CLONE_VFORK)
|
|
flags &= ~(CLONE_VFORK | CLONE_VM);
|
|
|
|
if (flags & CLONE_VM) {
|
|
TaskState *parent_ts = (TaskState *)cpu->opaque;
|
|
new_thread_info info;
|
|
pthread_attr_t attr;
|
|
|
|
ts = g_new0(TaskState, 1);
|
|
init_task_state(ts);
|
|
/* we create a new CPU instance. */
|
|
new_env = cpu_copy(env);
|
|
/* Init regs that differ from the parent. */
|
|
cpu_clone_regs(new_env, newsp);
|
|
new_cpu = ENV_GET_CPU(new_env);
|
|
new_cpu->opaque = ts;
|
|
ts->bprm = parent_ts->bprm;
|
|
ts->info = parent_ts->info;
|
|
ts->signal_mask = parent_ts->signal_mask;
|
|
nptl_flags = flags;
|
|
flags &= ~CLONE_NPTL_FLAGS2;
|
|
|
|
if (nptl_flags & CLONE_CHILD_CLEARTID) {
|
|
ts->child_tidptr = child_tidptr;
|
|
}
|
|
|
|
if (nptl_flags & CLONE_SETTLS)
|
|
cpu_set_tls (new_env, newtls);
|
|
|
|
/* Grab a mutex so that thread setup appears atomic. */
|
|
pthread_mutex_lock(&clone_lock);
|
|
|
|
memset(&info, 0, sizeof(info));
|
|
pthread_mutex_init(&info.mutex, NULL);
|
|
pthread_mutex_lock(&info.mutex);
|
|
pthread_cond_init(&info.cond, NULL);
|
|
info.env = new_env;
|
|
if (nptl_flags & CLONE_CHILD_SETTID)
|
|
info.child_tidptr = child_tidptr;
|
|
if (nptl_flags & CLONE_PARENT_SETTID)
|
|
info.parent_tidptr = parent_tidptr;
|
|
|
|
ret = pthread_attr_init(&attr);
|
|
ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
|
|
ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
/* It is not safe to deliver signals until the child has finished
|
|
initializing, so temporarily block all signals. */
|
|
sigfillset(&sigmask);
|
|
sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
|
|
|
|
ret = pthread_create(&info.thread, &attr, clone_func, &info);
|
|
/* TODO: Free new CPU state if thread creation failed. */
|
|
|
|
sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
|
|
pthread_attr_destroy(&attr);
|
|
if (ret == 0) {
|
|
/* Wait for the child to initialize. */
|
|
pthread_cond_wait(&info.cond, &info.mutex);
|
|
ret = info.tid;
|
|
if (flags & CLONE_PARENT_SETTID)
|
|
put_user_u32(ret, parent_tidptr);
|
|
} else {
|
|
ret = -1;
|
|
}
|
|
pthread_mutex_unlock(&info.mutex);
|
|
pthread_cond_destroy(&info.cond);
|
|
pthread_mutex_destroy(&info.mutex);
|
|
pthread_mutex_unlock(&clone_lock);
|
|
} else {
|
|
/* if no CLONE_VM, we consider it is a fork */
|
|
if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
if (block_signals()) {
|
|
return -TARGET_ERESTARTSYS;
|
|
}
|
|
|
|
fork_start();
|
|
ret = fork();
|
|
if (ret == 0) {
|
|
/* Child Process. */
|
|
rcu_after_fork();
|
|
cpu_clone_regs(env, newsp);
|
|
fork_end(1);
|
|
/* There is a race condition here. The parent process could
|
|
theoretically read the TID in the child process before the child
|
|
tid is set. This would require using either ptrace
|
|
(not implemented) or having *_tidptr to point at a shared memory
|
|
mapping. We can't repeat the spinlock hack used above because
|
|
the child process gets its own copy of the lock. */
|
|
if (flags & CLONE_CHILD_SETTID)
|
|
put_user_u32(gettid(), child_tidptr);
|
|
if (flags & CLONE_PARENT_SETTID)
|
|
put_user_u32(gettid(), parent_tidptr);
|
|
ts = (TaskState *)cpu->opaque;
|
|
if (flags & CLONE_SETTLS)
|
|
cpu_set_tls (env, newtls);
|
|
if (flags & CLONE_CHILD_CLEARTID)
|
|
ts->child_tidptr = child_tidptr;
|
|
} else {
|
|
fork_end(0);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* warning : doesn't handle linux specific flags... */
|
|
static int target_to_host_fcntl_cmd(int cmd)
|
|
{
|
|
switch(cmd) {
|
|
case TARGET_F_DUPFD:
|
|
case TARGET_F_GETFD:
|
|
case TARGET_F_SETFD:
|
|
case TARGET_F_GETFL:
|
|
case TARGET_F_SETFL:
|
|
return cmd;
|
|
case TARGET_F_GETLK:
|
|
return F_GETLK64;
|
|
case TARGET_F_SETLK:
|
|
return F_SETLK64;
|
|
case TARGET_F_SETLKW:
|
|
return F_SETLKW64;
|
|
case TARGET_F_GETOWN:
|
|
return F_GETOWN;
|
|
case TARGET_F_SETOWN:
|
|
return F_SETOWN;
|
|
case TARGET_F_GETSIG:
|
|
return F_GETSIG;
|
|
case TARGET_F_SETSIG:
|
|
return F_SETSIG;
|
|
#if TARGET_ABI_BITS == 32
|
|
case TARGET_F_GETLK64:
|
|
return F_GETLK64;
|
|
case TARGET_F_SETLK64:
|
|
return F_SETLK64;
|
|
case TARGET_F_SETLKW64:
|
|
return F_SETLKW64;
|
|
#endif
|
|
case TARGET_F_SETLEASE:
|
|
return F_SETLEASE;
|
|
case TARGET_F_GETLEASE:
|
|
return F_GETLEASE;
|
|
#ifdef F_DUPFD_CLOEXEC
|
|
case TARGET_F_DUPFD_CLOEXEC:
|
|
return F_DUPFD_CLOEXEC;
|
|
#endif
|
|
case TARGET_F_NOTIFY:
|
|
return F_NOTIFY;
|
|
#ifdef F_GETOWN_EX
|
|
case TARGET_F_GETOWN_EX:
|
|
return F_GETOWN_EX;
|
|
#endif
|
|
#ifdef F_SETOWN_EX
|
|
case TARGET_F_SETOWN_EX:
|
|
return F_SETOWN_EX;
|
|
#endif
|
|
#ifdef F_SETPIPE_SZ
|
|
case TARGET_F_SETPIPE_SZ:
|
|
return F_SETPIPE_SZ;
|
|
case TARGET_F_GETPIPE_SZ:
|
|
return F_GETPIPE_SZ;
|
|
#endif
|
|
default:
|
|
return -TARGET_EINVAL;
|
|
}
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
#define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a }
|
|
static const bitmask_transtbl flock_tbl[] = {
|
|
TRANSTBL_CONVERT(F_RDLCK),
|
|
TRANSTBL_CONVERT(F_WRLCK),
|
|
TRANSTBL_CONVERT(F_UNLCK),
|
|
TRANSTBL_CONVERT(F_EXLCK),
|
|
TRANSTBL_CONVERT(F_SHLCK),
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
static inline abi_long copy_from_user_flock(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_flock *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_flock *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
|
|
typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
|
|
|
|
#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
|
|
static inline abi_long copy_from_user_eabi_flock64(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_eabi_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_eabi_flock64(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_eabi_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long copy_from_user_flock64(struct flock64 *fl,
|
|
abi_ulong target_flock_addr)
|
|
{
|
|
struct target_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
__get_user(l_type, &target_fl->l_type);
|
|
fl->l_type = target_to_host_bitmask(l_type, flock_tbl);
|
|
__get_user(fl->l_whence, &target_fl->l_whence);
|
|
__get_user(fl->l_start, &target_fl->l_start);
|
|
__get_user(fl->l_len, &target_fl->l_len);
|
|
__get_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
|
|
const struct flock64 *fl)
|
|
{
|
|
struct target_flock64 *target_fl;
|
|
short l_type;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
l_type = host_to_target_bitmask(fl->l_type, flock_tbl);
|
|
__put_user(l_type, &target_fl->l_type);
|
|
__put_user(fl->l_whence, &target_fl->l_whence);
|
|
__put_user(fl->l_start, &target_fl->l_start);
|
|
__put_user(fl->l_len, &target_fl->l_len);
|
|
__put_user(fl->l_pid, &target_fl->l_pid);
|
|
unlock_user_struct(target_fl, target_flock_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
|
|
{
|
|
struct flock64 fl64;
|
|
#ifdef F_GETOWN_EX
|
|
struct f_owner_ex fox;
|
|
struct target_f_owner_ex *target_fox;
|
|
#endif
|
|
abi_long ret;
|
|
int host_cmd = target_to_host_fcntl_cmd(cmd);
|
|
|
|
if (host_cmd == -TARGET_EINVAL)
|
|
return host_cmd;
|
|
|
|
switch(cmd) {
|
|
case TARGET_F_GETLK:
|
|
ret = copy_from_user_flock(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
if (ret == 0) {
|
|
ret = copy_to_user_flock(arg, &fl64);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETLK:
|
|
case TARGET_F_SETLKW:
|
|
ret = copy_from_user_flock(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
break;
|
|
|
|
case TARGET_F_GETLK64:
|
|
ret = copy_from_user_flock64(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
if (ret == 0) {
|
|
ret = copy_to_user_flock64(arg, &fl64);
|
|
}
|
|
break;
|
|
case TARGET_F_SETLK64:
|
|
case TARGET_F_SETLKW64:
|
|
ret = copy_from_user_flock64(&fl64, arg);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
|
|
break;
|
|
|
|
case TARGET_F_GETFL:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
|
|
if (ret >= 0) {
|
|
ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETFL:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd,
|
|
target_to_host_bitmask(arg,
|
|
fcntl_flags_tbl)));
|
|
break;
|
|
|
|
#ifdef F_GETOWN_EX
|
|
case TARGET_F_GETOWN_EX:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
|
|
if (ret >= 0) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
|
|
return -TARGET_EFAULT;
|
|
target_fox->type = tswap32(fox.type);
|
|
target_fox->pid = tswap32(fox.pid);
|
|
unlock_user_struct(target_fox, arg, 1);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef F_SETOWN_EX
|
|
case TARGET_F_SETOWN_EX:
|
|
if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
|
|
return -TARGET_EFAULT;
|
|
fox.type = tswap32(target_fox->type);
|
|
fox.pid = tswap32(target_fox->pid);
|
|
unlock_user_struct(target_fox, arg, 0);
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
|
|
break;
|
|
#endif
|
|
|
|
case TARGET_F_SETOWN:
|
|
case TARGET_F_GETOWN:
|
|
case TARGET_F_SETSIG:
|
|
case TARGET_F_GETSIG:
|
|
case TARGET_F_SETLEASE:
|
|
case TARGET_F_GETLEASE:
|
|
case TARGET_F_SETPIPE_SZ:
|
|
case TARGET_F_GETPIPE_SZ:
|
|
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
|
|
break;
|
|
|
|
default:
|
|
ret = get_errno(safe_fcntl(fd, cmd, arg));
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef USE_UID16
|
|
|
|
static inline int high2lowuid(int uid)
|
|
{
|
|
if (uid > 65535)
|
|
return 65534;
|
|
else
|
|
return uid;
|
|
}
|
|
|
|
static inline int high2lowgid(int gid)
|
|
{
|
|
if (gid > 65535)
|
|
return 65534;
|
|
else
|
|
return gid;
|
|
}
|
|
|
|
static inline int low2highuid(int uid)
|
|
{
|
|
if ((int16_t)uid == -1)
|
|
return -1;
|
|
else
|
|
return uid;
|
|
}
|
|
|
|
static inline int low2highgid(int gid)
|
|
{
|
|
if ((int16_t)gid == -1)
|
|
return -1;
|
|
else
|
|
return gid;
|
|
}
|
|
static inline int tswapid(int id)
|
|
{
|
|
return tswap16(id);
|
|
}
|
|
|
|
#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
|
|
|
|
#else /* !USE_UID16 */
|
|
static inline int high2lowuid(int uid)
|
|
{
|
|
return uid;
|
|
}
|
|
static inline int high2lowgid(int gid)
|
|
{
|
|
return gid;
|
|
}
|
|
static inline int low2highuid(int uid)
|
|
{
|
|
return uid;
|
|
}
|
|
static inline int low2highgid(int gid)
|
|
{
|
|
return gid;
|
|
}
|
|
static inline int tswapid(int id)
|
|
{
|
|
return tswap32(id);
|
|
}
|
|
|
|
#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
|
|
|
|
#endif /* USE_UID16 */
|
|
|
|
/* We must do direct syscalls for setting UID/GID, because we want to
|
|
* implement the Linux system call semantics of "change only for this thread",
|
|
* not the libc/POSIX semantics of "change for all threads in process".
|
|
* (See http://ewontfix.com/17/ for more details.)
|
|
* We use the 32-bit version of the syscalls if present; if it is not
|
|
* then either the host architecture supports 32-bit UIDs natively with
|
|
* the standard syscall, or the 16-bit UID is the best we can do.
|
|
*/
|
|
#ifdef __NR_setuid32
|
|
#define __NR_sys_setuid __NR_setuid32
|
|
#else
|
|
#define __NR_sys_setuid __NR_setuid
|
|
#endif
|
|
#ifdef __NR_setgid32
|
|
#define __NR_sys_setgid __NR_setgid32
|
|
#else
|
|
#define __NR_sys_setgid __NR_setgid
|
|
#endif
|
|
#ifdef __NR_setresuid32
|
|
#define __NR_sys_setresuid __NR_setresuid32
|
|
#else
|
|
#define __NR_sys_setresuid __NR_setresuid
|
|
#endif
|
|
#ifdef __NR_setresgid32
|
|
#define __NR_sys_setresgid __NR_setresgid32
|
|
#else
|
|
#define __NR_sys_setresgid __NR_setresgid
|
|
#endif
|
|
|
|
_syscall1(int, sys_setuid, uid_t, uid)
|
|
_syscall1(int, sys_setgid, gid_t, gid)
|
|
_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
|
|
_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
|
|
|
|
void syscall_init(void)
|
|
{
|
|
IOCTLEntry *ie;
|
|
const argtype *arg_type;
|
|
int size;
|
|
int i;
|
|
|
|
thunk_init(STRUCT_MAX);
|
|
|
|
#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
|
|
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
|
|
#include "syscall_types.h"
|
|
#undef STRUCT
|
|
#undef STRUCT_SPECIAL
|
|
|
|
/* Build target_to_host_errno_table[] table from
|
|
* host_to_target_errno_table[]. */
|
|
for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
|
|
target_to_host_errno_table[host_to_target_errno_table[i]] = i;
|
|
}
|
|
|
|
/* we patch the ioctl size if necessary. We rely on the fact that
|
|
no ioctl has all the bits at '1' in the size field */
|
|
ie = ioctl_entries;
|
|
while (ie->target_cmd != 0) {
|
|
if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
|
|
TARGET_IOC_SIZEMASK) {
|
|
arg_type = ie->arg_type;
|
|
if (arg_type[0] != TYPE_PTR) {
|
|
fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
|
|
ie->target_cmd);
|
|
exit(1);
|
|
}
|
|
arg_type++;
|
|
size = thunk_type_size(arg_type, 0);
|
|
ie->target_cmd = (ie->target_cmd &
|
|
~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
|
|
(size << TARGET_IOC_SIZESHIFT);
|
|
}
|
|
|
|
/* automatic consistency check if same arch */
|
|
#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
|
|
(defined(__x86_64__) && defined(TARGET_X86_64))
|
|
if (unlikely(ie->target_cmd != ie->host_cmd)) {
|
|
fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
|
|
ie->name, ie->target_cmd, ie->host_cmd);
|
|
}
|
|
#endif
|
|
ie++;
|
|
}
|
|
}
|
|
|
|
#if TARGET_ABI_BITS == 32
|
|
static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
|
|
{
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
return ((uint64_t)word0 << 32) | word1;
|
|
#else
|
|
return ((uint64_t)word1 << 32) | word0;
|
|
#endif
|
|
}
|
|
#else /* TARGET_ABI_BITS == 32 */
|
|
static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
|
|
{
|
|
return word0;
|
|
}
|
|
#endif /* TARGET_ABI_BITS != 32 */
|
|
|
|
#ifdef TARGET_NR_truncate64
|
|
static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
|
|
abi_long arg2,
|
|
abi_long arg3,
|
|
abi_long arg4)
|
|
{
|
|
if (regpairs_aligned(cpu_env)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
}
|
|
return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_ftruncate64
|
|
static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
|
|
abi_long arg2,
|
|
abi_long arg3,
|
|
abi_long arg4)
|
|
{
|
|
if (regpairs_aligned(cpu_env)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
}
|
|
return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long target_to_host_timespec(struct timespec *host_ts,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
|
|
return -TARGET_EFAULT;
|
|
__get_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
unlock_user_struct(target_ts, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_timespec(abi_ulong target_addr,
|
|
struct timespec *host_ts)
|
|
{
|
|
struct target_timespec *target_ts;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
__put_user(host_ts->tv_sec, &target_ts->tv_sec);
|
|
__put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
|
|
unlock_user_struct(target_ts, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_itimerspec *target_itspec;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
host_itspec->it_interval.tv_sec =
|
|
tswapal(target_itspec->it_interval.tv_sec);
|
|
host_itspec->it_interval.tv_nsec =
|
|
tswapal(target_itspec->it_interval.tv_nsec);
|
|
host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
|
|
host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
|
|
|
|
unlock_user_struct(target_itspec, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
|
|
struct itimerspec *host_its)
|
|
{
|
|
struct target_itimerspec *target_itspec;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
|
|
target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
|
|
|
|
target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
|
|
target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
|
|
|
|
unlock_user_struct(target_itspec, target_addr, 0);
|
|
return 0;
|
|
}
|
|
|
|
static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
|
|
abi_ulong target_addr)
|
|
{
|
|
struct target_sigevent *target_sevp;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
/* This union is awkward on 64 bit systems because it has a 32 bit
|
|
* integer and a pointer in it; we follow the conversion approach
|
|
* used for handling sigval types in signal.c so the guest should get
|
|
* the correct value back even if we did a 64 bit byteswap and it's
|
|
* using the 32 bit integer.
|
|
*/
|
|
host_sevp->sigev_value.sival_ptr =
|
|
(void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
|
|
host_sevp->sigev_signo =
|
|
target_to_host_signal(tswap32(target_sevp->sigev_signo));
|
|
host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
|
|
host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
|
|
|
|
unlock_user_struct(target_sevp, target_addr, 1);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(TARGET_NR_mlockall)
|
|
static inline int target_to_host_mlockall_arg(int arg)
|
|
{
|
|
int result = 0;
|
|
|
|
if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
|
|
result |= MCL_CURRENT;
|
|
}
|
|
if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
|
|
result |= MCL_FUTURE;
|
|
}
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
static inline abi_long host_to_target_stat64(void *cpu_env,
|
|
abi_ulong target_addr,
|
|
struct stat *host_st)
|
|
{
|
|
#if defined(TARGET_ARM) && defined(TARGET_ABI32)
|
|
if (((CPUARMState *)cpu_env)->eabi) {
|
|
struct target_eabi_stat64 *target_st;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
memset(target_st, 0, sizeof(struct target_eabi_stat64));
|
|
__put_user(host_st->st_dev, &target_st->st_dev);
|
|
__put_user(host_st->st_ino, &target_st->st_ino);
|
|
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
|
|
__put_user(host_st->st_ino, &target_st->__st_ino);
|
|
#endif
|
|
__put_user(host_st->st_mode, &target_st->st_mode);
|
|
__put_user(host_st->st_nlink, &target_st->st_nlink);
|
|
__put_user(host_st->st_uid, &target_st->st_uid);
|
|
__put_user(host_st->st_gid, &target_st->st_gid);
|
|
__put_user(host_st->st_rdev, &target_st->st_rdev);
|
|
__put_user(host_st->st_size, &target_st->st_size);
|
|
__put_user(host_st->st_blksize, &target_st->st_blksize);
|
|
__put_user(host_st->st_blocks, &target_st->st_blocks);
|
|
__put_user(host_st->st_atime, &target_st->target_st_atime);
|
|
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
|
|
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
|
|
unlock_user_struct(target_st, target_addr, 1);
|
|
} else
|
|
#endif
|
|
{
|
|
#if defined(TARGET_HAS_STRUCT_STAT64)
|
|
struct target_stat64 *target_st;
|
|
#else
|
|
struct target_stat *target_st;
|
|
#endif
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
|
|
return -TARGET_EFAULT;
|
|
memset(target_st, 0, sizeof(*target_st));
|
|
__put_user(host_st->st_dev, &target_st->st_dev);
|
|
__put_user(host_st->st_ino, &target_st->st_ino);
|
|
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
|
|
__put_user(host_st->st_ino, &target_st->__st_ino);
|
|
#endif
|
|
__put_user(host_st->st_mode, &target_st->st_mode);
|
|
__put_user(host_st->st_nlink, &target_st->st_nlink);
|
|
__put_user(host_st->st_uid, &target_st->st_uid);
|
|
__put_user(host_st->st_gid, &target_st->st_gid);
|
|
__put_user(host_st->st_rdev, &target_st->st_rdev);
|
|
/* XXX: better use of kernel struct */
|
|
__put_user(host_st->st_size, &target_st->st_size);
|
|
__put_user(host_st->st_blksize, &target_st->st_blksize);
|
|
__put_user(host_st->st_blocks, &target_st->st_blocks);
|
|
__put_user(host_st->st_atime, &target_st->target_st_atime);
|
|
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
|
|
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
|
|
unlock_user_struct(target_st, target_addr, 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ??? Using host futex calls even when target atomic operations
|
|
are not really atomic probably breaks things. However implementing
|
|
futexes locally would make futexes shared between multiple processes
|
|
tricky. However they're probably useless because guest atomic
|
|
operations won't work either. */
|
|
static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
|
|
target_ulong uaddr2, int val3)
|
|
{
|
|
struct timespec ts, *pts;
|
|
int base_op;
|
|
|
|
/* ??? We assume FUTEX_* constants are the same on both host
|
|
and target. */
|
|
#ifdef FUTEX_CMD_MASK
|
|
base_op = op & FUTEX_CMD_MASK;
|
|
#else
|
|
base_op = op;
|
|
#endif
|
|
switch (base_op) {
|
|
case FUTEX_WAIT:
|
|
case FUTEX_WAIT_BITSET:
|
|
if (timeout) {
|
|
pts = &ts;
|
|
target_to_host_timespec(pts, timeout);
|
|
} else {
|
|
pts = NULL;
|
|
}
|
|
return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
|
|
pts, NULL, val3));
|
|
case FUTEX_WAKE:
|
|
return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
|
|
case FUTEX_FD:
|
|
return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
|
|
case FUTEX_REQUEUE:
|
|
case FUTEX_CMP_REQUEUE:
|
|
case FUTEX_WAKE_OP:
|
|
/* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
|
|
TIMEOUT parameter is interpreted as a uint32_t by the kernel.
|
|
But the prototype takes a `struct timespec *'; insert casts
|
|
to satisfy the compiler. We do not need to tswap TIMEOUT
|
|
since it's not compared to guest memory. */
|
|
pts = (struct timespec *)(uintptr_t) timeout;
|
|
return get_errno(safe_futex(g2h(uaddr), op, val, pts,
|
|
g2h(uaddr2),
|
|
(base_op == FUTEX_CMP_REQUEUE
|
|
? tswap32(val3)
|
|
: val3)));
|
|
default:
|
|
return -TARGET_ENOSYS;
|
|
}
|
|
}
|
|
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
|
|
abi_long handle, abi_long mount_id,
|
|
abi_long flags)
|
|
{
|
|
struct file_handle *target_fh;
|
|
struct file_handle *fh;
|
|
int mid = 0;
|
|
abi_long ret;
|
|
char *name;
|
|
unsigned int size, total_size;
|
|
|
|
if (get_user_s32(size, handle)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
name = lock_user_string(pathname);
|
|
if (!name) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
total_size = sizeof(struct file_handle) + size;
|
|
target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
|
|
if (!target_fh) {
|
|
unlock_user(name, pathname, 0);
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fh = g_malloc0(total_size);
|
|
fh->handle_bytes = size;
|
|
|
|
ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
|
|
unlock_user(name, pathname, 0);
|
|
|
|
/* man name_to_handle_at(2):
|
|
* Other than the use of the handle_bytes field, the caller should treat
|
|
* the file_handle structure as an opaque data type
|
|
*/
|
|
|
|
memcpy(target_fh, fh, total_size);
|
|
target_fh->handle_bytes = tswap32(fh->handle_bytes);
|
|
target_fh->handle_type = tswap32(fh->handle_type);
|
|
g_free(fh);
|
|
unlock_user(target_fh, handle, total_size);
|
|
|
|
if (put_user_s32(mid, mount_id)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
|
|
abi_long flags)
|
|
{
|
|
struct file_handle *target_fh;
|
|
struct file_handle *fh;
|
|
unsigned int size, total_size;
|
|
abi_long ret;
|
|
|
|
if (get_user_s32(size, handle)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
total_size = sizeof(struct file_handle) + size;
|
|
target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
|
|
if (!target_fh) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
fh = g_memdup(target_fh, total_size);
|
|
fh->handle_bytes = size;
|
|
fh->handle_type = tswap32(target_fh->handle_type);
|
|
|
|
ret = get_errno(open_by_handle_at(mount_fd, fh,
|
|
target_to_host_bitmask(flags, fcntl_flags_tbl)));
|
|
|
|
g_free(fh);
|
|
|
|
unlock_user(target_fh, handle, total_size);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
|
|
|
|
/* signalfd siginfo conversion */
|
|
|
|
static void
|
|
host_to_target_signalfd_siginfo(struct signalfd_siginfo *tinfo,
|
|
const struct signalfd_siginfo *info)
|
|
{
|
|
int sig = host_to_target_signal(info->ssi_signo);
|
|
|
|
/* linux/signalfd.h defines a ssi_addr_lsb
|
|
* not defined in sys/signalfd.h but used by some kernels
|
|
*/
|
|
|
|
#ifdef BUS_MCEERR_AO
|
|
if (tinfo->ssi_signo == SIGBUS &&
|
|
(tinfo->ssi_code == BUS_MCEERR_AR ||
|
|
tinfo->ssi_code == BUS_MCEERR_AO)) {
|
|
uint16_t *ssi_addr_lsb = (uint16_t *)(&info->ssi_addr + 1);
|
|
uint16_t *tssi_addr_lsb = (uint16_t *)(&tinfo->ssi_addr + 1);
|
|
*tssi_addr_lsb = tswap16(*ssi_addr_lsb);
|
|
}
|
|
#endif
|
|
|
|
tinfo->ssi_signo = tswap32(sig);
|
|
tinfo->ssi_errno = tswap32(tinfo->ssi_errno);
|
|
tinfo->ssi_code = tswap32(info->ssi_code);
|
|
tinfo->ssi_pid = tswap32(info->ssi_pid);
|
|
tinfo->ssi_uid = tswap32(info->ssi_uid);
|
|
tinfo->ssi_fd = tswap32(info->ssi_fd);
|
|
tinfo->ssi_tid = tswap32(info->ssi_tid);
|
|
tinfo->ssi_band = tswap32(info->ssi_band);
|
|
tinfo->ssi_overrun = tswap32(info->ssi_overrun);
|
|
tinfo->ssi_trapno = tswap32(info->ssi_trapno);
|
|
tinfo->ssi_status = tswap32(info->ssi_status);
|
|
tinfo->ssi_int = tswap32(info->ssi_int);
|
|
tinfo->ssi_ptr = tswap64(info->ssi_ptr);
|
|
tinfo->ssi_utime = tswap64(info->ssi_utime);
|
|
tinfo->ssi_stime = tswap64(info->ssi_stime);
|
|
tinfo->ssi_addr = tswap64(info->ssi_addr);
|
|
}
|
|
|
|
static abi_long host_to_target_data_signalfd(void *buf, size_t len)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < len; i += sizeof(struct signalfd_siginfo)) {
|
|
host_to_target_signalfd_siginfo(buf + i, buf + i);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static TargetFdTrans target_signalfd_trans = {
|
|
.host_to_target_data = host_to_target_data_signalfd,
|
|
};
|
|
|
|
static abi_long do_signalfd4(int fd, abi_long mask, int flags)
|
|
{
|
|
int host_flags;
|
|
target_sigset_t *target_mask;
|
|
sigset_t host_mask;
|
|
abi_long ret;
|
|
|
|
if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
|
|
return -TARGET_EFAULT;
|
|
}
|
|
|
|
target_to_host_sigset(&host_mask, target_mask);
|
|
|
|
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
|
|
|
|
ret = get_errno(signalfd(fd, &host_mask, host_flags));
|
|
if (ret >= 0) {
|
|
fd_trans_register(ret, &target_signalfd_trans);
|
|
}
|
|
|
|
unlock_user_struct(target_mask, mask, 0);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* Map host to target signal numbers for the wait family of syscalls.
|
|
Assume all other status bits are the same. */
|
|
int host_to_target_waitstatus(int status)
|
|
{
|
|
if (WIFSIGNALED(status)) {
|
|
return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
|
|
}
|
|
if (WIFSTOPPED(status)) {
|
|
return (host_to_target_signal(WSTOPSIG(status)) << 8)
|
|
| (status & 0xff);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
static int open_self_cmdline(void *cpu_env, int fd)
|
|
{
|
|
int fd_orig = -1;
|
|
bool word_skipped = false;
|
|
|
|
fd_orig = open("/proc/self/cmdline", O_RDONLY);
|
|
if (fd_orig < 0) {
|
|
return fd_orig;
|
|
}
|
|
|
|
while (true) {
|
|
ssize_t nb_read;
|
|
char buf[128];
|
|
char *cp_buf = buf;
|
|
|
|
nb_read = read(fd_orig, buf, sizeof(buf));
|
|
if (nb_read < 0) {
|
|
int e = errno;
|
|
fd_orig = close(fd_orig);
|
|
errno = e;
|
|
return -1;
|
|
} else if (nb_read == 0) {
|
|
break;
|
|
}
|
|
|
|
if (!word_skipped) {
|
|
/* Skip the first string, which is the path to qemu-*-static
|
|
instead of the actual command. */
|
|
cp_buf = memchr(buf, 0, nb_read);
|
|
if (cp_buf) {
|
|
/* Null byte found, skip one string */
|
|
cp_buf++;
|
|
nb_read -= cp_buf - buf;
|
|
word_skipped = true;
|
|
}
|
|
}
|
|
|
|
if (word_skipped) {
|
|
if (write(fd, cp_buf, nb_read) != nb_read) {
|
|
int e = errno;
|
|
close(fd_orig);
|
|
errno = e;
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return close(fd_orig);
|
|
}
|
|
|
|
static int open_self_maps(void *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
FILE *fp;
|
|
char *line = NULL;
|
|
size_t len = 0;
|
|
ssize_t read;
|
|
|
|
fp = fopen("/proc/self/maps", "r");
|
|
if (fp == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
while ((read = getline(&line, &len, fp)) != -1) {
|
|
int fields, dev_maj, dev_min, inode;
|
|
uint64_t min, max, offset;
|
|
char flag_r, flag_w, flag_x, flag_p;
|
|
char path[512] = "";
|
|
fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
|
|
" %512s", &min, &max, &flag_r, &flag_w, &flag_x,
|
|
&flag_p, &offset, &dev_maj, &dev_min, &inode, path);
|
|
|
|
if ((fields < 10) || (fields > 11)) {
|
|
continue;
|
|
}
|
|
if (h2g_valid(min)) {
|
|
int flags = page_get_flags(h2g(min));
|
|
max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX);
|
|
if (page_check_range(h2g(min), max - min, flags) == -1) {
|
|
continue;
|
|
}
|
|
if (h2g(min) == ts->info->stack_limit) {
|
|
pstrcpy(path, sizeof(path), " [stack]");
|
|
}
|
|
dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
|
|
" %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
|
|
h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
|
|
flag_x, flag_p, offset, dev_maj, dev_min, inode,
|
|
path[0] ? " " : "", path);
|
|
}
|
|
}
|
|
|
|
free(line);
|
|
fclose(fp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int open_self_stat(void *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
abi_ulong start_stack = ts->info->start_stack;
|
|
int i;
|
|
|
|
for (i = 0; i < 44; i++) {
|
|
char buf[128];
|
|
int len;
|
|
uint64_t val = 0;
|
|
|
|
if (i == 0) {
|
|
/* pid */
|
|
val = getpid();
|
|
snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
|
|
} else if (i == 1) {
|
|
/* app name */
|
|
snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
|
|
} else if (i == 27) {
|
|
/* stack bottom */
|
|
val = start_stack;
|
|
snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
|
|
} else {
|
|
/* for the rest, there is MasterCard */
|
|
snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
|
|
}
|
|
|
|
len = strlen(buf);
|
|
if (write(fd, buf, len) != len) {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int open_self_auxv(void *cpu_env, int fd)
|
|
{
|
|
CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
|
|
TaskState *ts = cpu->opaque;
|
|
abi_ulong auxv = ts->info->saved_auxv;
|
|
abi_ulong len = ts->info->auxv_len;
|
|
char *ptr;
|
|
|
|
/*
|
|
* Auxiliary vector is stored in target process stack.
|
|
* read in whole auxv vector and copy it to file
|
|
*/
|
|
ptr = lock_user(VERIFY_READ, auxv, len, 0);
|
|
if (ptr != NULL) {
|
|
while (len > 0) {
|
|
ssize_t r;
|
|
r = write(fd, ptr, len);
|
|
if (r <= 0) {
|
|
break;
|
|
}
|
|
len -= r;
|
|
ptr += r;
|
|
}
|
|
lseek(fd, 0, SEEK_SET);
|
|
unlock_user(ptr, auxv, len);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int is_proc_myself(const char *filename, const char *entry)
|
|
{
|
|
if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
|
|
filename += strlen("/proc/");
|
|
if (!strncmp(filename, "self/", strlen("self/"))) {
|
|
filename += strlen("self/");
|
|
} else if (*filename >= '1' && *filename <= '9') {
|
|
char myself[80];
|
|
snprintf(myself, sizeof(myself), "%d/", getpid());
|
|
if (!strncmp(filename, myself, strlen(myself))) {
|
|
filename += strlen(myself);
|
|
} else {
|
|
return 0;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
if (!strcmp(filename, entry)) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
|
|
static int is_proc(const char *filename, const char *entry)
|
|
{
|
|
return strcmp(filename, entry) == 0;
|
|
}
|
|
|
|
static int open_net_route(void *cpu_env, int fd)
|
|
{
|
|
FILE *fp;
|
|
char *line = NULL;
|
|
size_t len = 0;
|
|
ssize_t read;
|
|
|
|
fp = fopen("/proc/net/route", "r");
|
|
if (fp == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
/* read header */
|
|
|
|
read = getline(&line, &len, fp);
|
|
dprintf(fd, "%s", line);
|
|
|
|
/* read routes */
|
|
|
|
while ((read = getline(&line, &len, fp)) != -1) {
|
|
char iface[16];
|
|
uint32_t dest, gw, mask;
|
|
unsigned int flags, refcnt, use, metric, mtu, window, irtt;
|
|
sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
|
|
iface, &dest, &gw, &flags, &refcnt, &use, &metric,
|
|
&mask, &mtu, &window, &irtt);
|
|
dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
|
|
iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
|
|
metric, tswap32(mask), mtu, window, irtt);
|
|
}
|
|
|
|
free(line);
|
|
fclose(fp);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
|
|
{
|
|
struct fake_open {
|
|
const char *filename;
|
|
int (*fill)(void *cpu_env, int fd);
|
|
int (*cmp)(const char *s1, const char *s2);
|
|
};
|
|
const struct fake_open *fake_open;
|
|
static const struct fake_open fakes[] = {
|
|
{ "maps", open_self_maps, is_proc_myself },
|
|
{ "stat", open_self_stat, is_proc_myself },
|
|
{ "auxv", open_self_auxv, is_proc_myself },
|
|
{ "cmdline", open_self_cmdline, is_proc_myself },
|
|
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
|
|
{ "/proc/net/route", open_net_route, is_proc },
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
|
|
if (is_proc_myself(pathname, "exe")) {
|
|
int execfd = qemu_getauxval(AT_EXECFD);
|
|
return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
|
|
}
|
|
|
|
for (fake_open = fakes; fake_open->filename; fake_open++) {
|
|
if (fake_open->cmp(pathname, fake_open->filename)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (fake_open->filename) {
|
|
const char *tmpdir;
|
|
char filename[PATH_MAX];
|
|
int fd, r;
|
|
|
|
/* create temporary file to map stat to */
|
|
tmpdir = getenv("TMPDIR");
|
|
if (!tmpdir)
|
|
tmpdir = "/tmp";
|
|
snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
|
|
fd = mkstemp(filename);
|
|
if (fd < 0) {
|
|
return fd;
|
|
}
|
|
unlink(filename);
|
|
|
|
if ((r = fake_open->fill(cpu_env, fd))) {
|
|
int e = errno;
|
|
close(fd);
|
|
errno = e;
|
|
return r;
|
|
}
|
|
lseek(fd, 0, SEEK_SET);
|
|
|
|
return fd;
|
|
}
|
|
|
|
return safe_openat(dirfd, path(pathname), flags, mode);
|
|
}
|
|
|
|
#define TIMER_MAGIC 0x0caf0000
|
|
#define TIMER_MAGIC_MASK 0xffff0000
|
|
|
|
/* Convert QEMU provided timer ID back to internal 16bit index format */
|
|
static target_timer_t get_timer_id(abi_long arg)
|
|
{
|
|
target_timer_t timerid = arg;
|
|
|
|
if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
timerid &= 0xffff;
|
|
|
|
if (timerid >= ARRAY_SIZE(g_posix_timers)) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
|
|
return timerid;
|
|
}
|
|
|
|
/* do_syscall() should always have a single exit point at the end so
|
|
that actions, such as logging of syscall results, can be performed.
|
|
All errnos that do_syscall() returns must be -TARGET_<errcode>. */
|
|
abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
|
|
abi_long arg2, abi_long arg3, abi_long arg4,
|
|
abi_long arg5, abi_long arg6, abi_long arg7,
|
|
abi_long arg8)
|
|
{
|
|
CPUState *cpu = ENV_GET_CPU(cpu_env);
|
|
abi_long ret;
|
|
struct stat st;
|
|
struct statfs stfs;
|
|
void *p;
|
|
|
|
#if defined(DEBUG_ERESTARTSYS)
|
|
/* Debug-only code for exercising the syscall-restart code paths
|
|
* in the per-architecture cpu main loops: restart every syscall
|
|
* the guest makes once before letting it through.
|
|
*/
|
|
{
|
|
static int flag;
|
|
|
|
flag = !flag;
|
|
if (flag) {
|
|
return -TARGET_ERESTARTSYS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
gemu_log("syscall %d", num);
|
|
#endif
|
|
trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8);
|
|
if(do_strace)
|
|
print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
|
|
|
|
switch(num) {
|
|
case TARGET_NR_exit:
|
|
/* In old applications this may be used to implement _exit(2).
|
|
However in threaded applictions it is used for thread termination,
|
|
and _exit_group is used for application termination.
|
|
Do thread termination if we have more then one thread. */
|
|
|
|
if (block_signals()) {
|
|
ret = -TARGET_ERESTARTSYS;
|
|
break;
|
|
}
|
|
|
|
if (CPU_NEXT(first_cpu)) {
|
|
TaskState *ts;
|
|
|
|
cpu_list_lock();
|
|
/* Remove the CPU from the list. */
|
|
QTAILQ_REMOVE(&cpus, cpu, node);
|
|
cpu_list_unlock();
|
|
ts = cpu->opaque;
|
|
if (ts->child_tidptr) {
|
|
put_user_u32(0, ts->child_tidptr);
|
|
sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
|
|
NULL, NULL, 0);
|
|
}
|
|
thread_cpu = NULL;
|
|
object_unref(OBJECT(cpu));
|
|
g_free(ts);
|
|
rcu_unregister_thread();
|
|
pthread_exit(NULL);
|
|
}
|
|
#ifdef TARGET_GPROF
|
|
_mcleanup();
|
|
#endif
|
|
gdb_exit(cpu_env, arg1);
|
|
_exit(arg1);
|
|
ret = 0; /* avoid warning */
|
|
break;
|
|
case TARGET_NR_read:
|
|
if (arg3 == 0)
|
|
ret = 0;
|
|
else {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
|
|
goto efault;
|
|
ret = get_errno(safe_read(arg1, p, arg3));
|
|
if (ret >= 0 &&
|
|
fd_trans_host_to_target_data(arg1)) {
|
|
ret = fd_trans_host_to_target_data(arg1)(p, ret);
|
|
}
|
|
unlock_user(p, arg2, ret);
|
|
}
|
|
break;
|
|
case TARGET_NR_write:
|
|
if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
|
|
goto efault;
|
|
ret = get_errno(safe_write(arg1, p, arg3));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#ifdef TARGET_NR_open
|
|
case TARGET_NR_open:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl),
|
|
arg3));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_openat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(do_openat(cpu_env, arg1, p,
|
|
target_to_host_bitmask(arg3, fcntl_flags_tbl),
|
|
arg4));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
case TARGET_NR_name_to_handle_at:
|
|
ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
|
|
case TARGET_NR_open_by_handle_at:
|
|
ret = do_open_by_handle_at(arg1, arg2, arg3);
|
|
fd_trans_unregister(ret);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_close:
|
|
fd_trans_unregister(arg1);
|
|
ret = get_errno(close(arg1));
|
|
break;
|
|
case TARGET_NR_brk:
|
|
ret = do_brk(arg1);
|
|
break;
|
|
#ifdef TARGET_NR_fork
|
|
case TARGET_NR_fork:
|
|
ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_waitpid
|
|
case TARGET_NR_waitpid:
|
|
{
|
|
int status;
|
|
ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
|
|
if (!is_error(ret) && arg2 && ret
|
|
&& put_user_s32(host_to_target_waitstatus(status), arg2))
|
|
goto efault;
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_waitid
|
|
case TARGET_NR_waitid:
|
|
{
|
|
siginfo_t info;
|
|
info.si_pid = 0;
|
|
ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
|
|
if (!is_error(ret) && arg3 && info.si_pid != 0) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
|
|
goto efault;
|
|
host_to_target_siginfo(p, &info);
|
|
unlock_user(p, arg3, sizeof(target_siginfo_t));
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_creat /* not on alpha */
|
|
case TARGET_NR_creat:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(creat(p, arg2));
|
|
fd_trans_unregister(ret);
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_link
|
|
case TARGET_NR_link:
|
|
{
|
|
void * p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(link(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_linkat)
|
|
case TARGET_NR_linkat:
|
|
{
|
|
void * p2 = NULL;
|
|
if (!arg2 || !arg4)
|
|
goto efault;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user_string(arg4);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
|
|
unlock_user(p, arg2, 0);
|
|
unlock_user(p2, arg4, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_unlink
|
|
case TARGET_NR_unlink:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(unlink(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_unlinkat)
|
|
case TARGET_NR_unlinkat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(unlinkat(arg1, p, arg3));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_execve:
|
|
{
|
|
char **argp, **envp;
|
|
int argc, envc;
|
|
abi_ulong gp;
|
|
abi_ulong guest_argp;
|
|
abi_ulong guest_envp;
|
|
abi_ulong addr;
|
|
char **q;
|
|
int total_size = 0;
|
|
|
|
argc = 0;
|
|
guest_argp = arg2;
|
|
for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
|
|
if (get_user_ual(addr, gp))
|
|
goto efault;
|
|
if (!addr)
|
|
break;
|
|
argc++;
|
|
}
|
|
envc = 0;
|
|
guest_envp = arg3;
|
|
for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
|
|
if (get_user_ual(addr, gp))
|
|
goto efault;
|
|
if (!addr)
|
|
break;
|
|
envc++;
|
|
}
|
|
|
|
argp = alloca((argc + 1) * sizeof(void *));
|
|
envp = alloca((envc + 1) * sizeof(void *));
|
|
|
|
for (gp = guest_argp, q = argp; gp;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp))
|
|
goto execve_efault;
|
|
if (!addr)
|
|
break;
|
|
if (!(*q = lock_user_string(addr)))
|
|
goto execve_efault;
|
|
total_size += strlen(*q) + 1;
|
|
}
|
|
*q = NULL;
|
|
|
|
for (gp = guest_envp, q = envp; gp;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp))
|
|
goto execve_efault;
|
|
if (!addr)
|
|
break;
|
|
if (!(*q = lock_user_string(addr)))
|
|
goto execve_efault;
|
|
total_size += strlen(*q) + 1;
|
|
}
|
|
*q = NULL;
|
|
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto execve_efault;
|
|
/* Although execve() is not an interruptible syscall it is
|
|
* a special case where we must use the safe_syscall wrapper:
|
|
* if we allow a signal to happen before we make the host
|
|
* syscall then we will 'lose' it, because at the point of
|
|
* execve the process leaves QEMU's control. So we use the
|
|
* safe syscall wrapper to ensure that we either take the
|
|
* signal as a guest signal, or else it does not happen
|
|
* before the execve completes and makes it the other
|
|
* program's problem.
|
|
*/
|
|
ret = get_errno(safe_execve(p, argp, envp));
|
|
unlock_user(p, arg1, 0);
|
|
|
|
goto execve_end;
|
|
|
|
execve_efault:
|
|
ret = -TARGET_EFAULT;
|
|
|
|
execve_end:
|
|
for (gp = guest_argp, q = argp; *q;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp)
|
|
|| !addr)
|
|
break;
|
|
unlock_user(*q, addr, 0);
|
|
}
|
|
for (gp = guest_envp, q = envp; *q;
|
|
gp += sizeof(abi_ulong), q++) {
|
|
if (get_user_ual(addr, gp)
|
|
|| !addr)
|
|
break;
|
|
unlock_user(*q, addr, 0);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_chdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(chdir(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#ifdef TARGET_NR_time
|
|
case TARGET_NR_time:
|
|
{
|
|
time_t host_time;
|
|
ret = get_errno(time(&host_time));
|
|
if (!is_error(ret)
|
|
&& arg1
|
|
&& put_user_sal(host_time, arg1))
|
|
goto efault;
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_mknod
|
|
case TARGET_NR_mknod:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(mknod(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_mknodat)
|
|
case TARGET_NR_mknodat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(mknodat(arg1, p, arg3, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_chmod
|
|
case TARGET_NR_chmod:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(chmod(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_break
|
|
case TARGET_NR_break:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_oldstat
|
|
case TARGET_NR_oldstat:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_lseek:
|
|
ret = get_errno(lseek(arg1, arg2, arg3));
|
|
break;
|
|
#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxpid:
|
|
((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
|
|
ret = get_errno(getpid());
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getpid
|
|
case TARGET_NR_getpid:
|
|
ret = get_errno(getpid());
|
|
break;
|
|
#endif
|
|
case TARGET_NR_mount:
|
|
{
|
|
/* need to look at the data field */
|
|
void *p2, *p3;
|
|
|
|
if (arg1) {
|
|
p = lock_user_string(arg1);
|
|
if (!p) {
|
|
goto efault;
|
|
}
|
|
} else {
|
|
p = NULL;
|
|
}
|
|
|
|
p2 = lock_user_string(arg2);
|
|
if (!p2) {
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
goto efault;
|
|
}
|
|
|
|
if (arg3) {
|
|
p3 = lock_user_string(arg3);
|
|
if (!p3) {
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
unlock_user(p2, arg2, 0);
|
|
goto efault;
|
|
}
|
|
} else {
|
|
p3 = NULL;
|
|
}
|
|
|
|
/* FIXME - arg5 should be locked, but it isn't clear how to
|
|
* do that since it's not guaranteed to be a NULL-terminated
|
|
* string.
|
|
*/
|
|
if (!arg5) {
|
|
ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
|
|
} else {
|
|
ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
|
|
}
|
|
ret = get_errno(ret);
|
|
|
|
if (arg1) {
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
unlock_user(p2, arg2, 0);
|
|
if (arg3) {
|
|
unlock_user(p3, arg3, 0);
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_umount
|
|
case TARGET_NR_umount:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(umount(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_stime /* not on alpha */
|
|
case TARGET_NR_stime:
|
|
{
|
|
time_t host_time;
|
|
if (get_user_sal(host_time, arg1))
|
|
goto efault;
|
|
ret = get_errno(stime(&host_time));
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_ptrace:
|
|
goto unimplemented;
|
|
#ifdef TARGET_NR_alarm /* not on alpha */
|
|
case TARGET_NR_alarm:
|
|
ret = alarm(arg1);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_oldfstat
|
|
case TARGET_NR_oldfstat:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_pause /* not on alpha */
|
|
case TARGET_NR_pause:
|
|
if (!block_signals()) {
|
|
sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
|
|
}
|
|
ret = -TARGET_EINTR;
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_utime
|
|
case TARGET_NR_utime:
|
|
{
|
|
struct utimbuf tbuf, *host_tbuf;
|
|
struct target_utimbuf *target_tbuf;
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
|
|
goto efault;
|
|
tbuf.actime = tswapal(target_tbuf->actime);
|
|
tbuf.modtime = tswapal(target_tbuf->modtime);
|
|
unlock_user_struct(target_tbuf, arg2, 0);
|
|
host_tbuf = &tbuf;
|
|
} else {
|
|
host_tbuf = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(utime(p, host_tbuf));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_utimes
|
|
case TARGET_NR_utimes:
|
|
{
|
|
struct timeval *tvp, tv[2];
|
|
if (arg2) {
|
|
if (copy_from_user_timeval(&tv[0], arg2)
|
|
|| copy_from_user_timeval(&tv[1],
|
|
arg2 + sizeof(struct target_timeval)))
|
|
goto efault;
|
|
tvp = tv;
|
|
} else {
|
|
tvp = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(utimes(p, tvp));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_futimesat)
|
|
case TARGET_NR_futimesat:
|
|
{
|
|
struct timeval *tvp, tv[2];
|
|
if (arg3) {
|
|
if (copy_from_user_timeval(&tv[0], arg3)
|
|
|| copy_from_user_timeval(&tv[1],
|
|
arg3 + sizeof(struct target_timeval)))
|
|
goto efault;
|
|
tvp = tv;
|
|
} else {
|
|
tvp = NULL;
|
|
}
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(futimesat(arg1, path(p), tvp));
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_stty
|
|
case TARGET_NR_stty:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_gtty
|
|
case TARGET_NR_gtty:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_access
|
|
case TARGET_NR_access:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(access(path(p), arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
|
|
case TARGET_NR_faccessat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(faccessat(arg1, p, arg3, 0));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_nice /* not on alpha */
|
|
case TARGET_NR_nice:
|
|
ret = get_errno(nice(arg1));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_ftime
|
|
case TARGET_NR_ftime:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_sync:
|
|
sync();
|
|
ret = 0;
|
|
break;
|
|
case TARGET_NR_kill:
|
|
ret = get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
|
|
break;
|
|
#ifdef TARGET_NR_rename
|
|
case TARGET_NR_rename:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(rename(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_renameat)
|
|
case TARGET_NR_renameat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user_string(arg4);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(renameat(arg1, p, arg3, p2));
|
|
unlock_user(p2, arg4, 0);
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_mkdir
|
|
case TARGET_NR_mkdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(mkdir(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_mkdirat)
|
|
case TARGET_NR_mkdirat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(mkdirat(arg1, p, arg3));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_rmdir
|
|
case TARGET_NR_rmdir:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(rmdir(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_dup:
|
|
ret = get_errno(dup(arg1));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, ret);
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_pipe
|
|
case TARGET_NR_pipe:
|
|
ret = do_pipe(cpu_env, arg1, 0, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_pipe2
|
|
case TARGET_NR_pipe2:
|
|
ret = do_pipe(cpu_env, arg1,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_times:
|
|
{
|
|
struct target_tms *tmsp;
|
|
struct tms tms;
|
|
ret = get_errno(times(&tms));
|
|
if (arg1) {
|
|
tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
|
|
if (!tmsp)
|
|
goto efault;
|
|
tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
|
|
tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
|
|
tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
|
|
tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
|
|
}
|
|
if (!is_error(ret))
|
|
ret = host_to_target_clock_t(ret);
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_prof
|
|
case TARGET_NR_prof:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_signal
|
|
case TARGET_NR_signal:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_acct:
|
|
if (arg1 == 0) {
|
|
ret = get_errno(acct(NULL));
|
|
} else {
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(acct(path(p)));
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_umount2
|
|
case TARGET_NR_umount2:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(umount2(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_lock
|
|
case TARGET_NR_lock:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_ioctl:
|
|
ret = do_ioctl(arg1, arg2, arg3);
|
|
break;
|
|
case TARGET_NR_fcntl:
|
|
ret = do_fcntl(arg1, arg2, arg3);
|
|
break;
|
|
#ifdef TARGET_NR_mpx
|
|
case TARGET_NR_mpx:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_setpgid:
|
|
ret = get_errno(setpgid(arg1, arg2));
|
|
break;
|
|
#ifdef TARGET_NR_ulimit
|
|
case TARGET_NR_ulimit:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_oldolduname
|
|
case TARGET_NR_oldolduname:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_umask:
|
|
ret = get_errno(umask(arg1));
|
|
break;
|
|
case TARGET_NR_chroot:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(chroot(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#ifdef TARGET_NR_ustat
|
|
case TARGET_NR_ustat:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_dup2
|
|
case TARGET_NR_dup2:
|
|
ret = get_errno(dup2(arg1, arg2));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, arg2);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
|
|
case TARGET_NR_dup3:
|
|
ret = get_errno(dup3(arg1, arg2, arg3));
|
|
if (ret >= 0) {
|
|
fd_trans_dup(arg1, arg2);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getppid /* not on alpha */
|
|
case TARGET_NR_getppid:
|
|
ret = get_errno(getppid());
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getpgrp
|
|
case TARGET_NR_getpgrp:
|
|
ret = get_errno(getpgrp());
|
|
break;
|
|
#endif
|
|
case TARGET_NR_setsid:
|
|
ret = get_errno(setsid());
|
|
break;
|
|
#ifdef TARGET_NR_sigaction
|
|
case TARGET_NR_sigaction:
|
|
{
|
|
#if defined(TARGET_ALPHA)
|
|
struct target_sigaction act, oact, *pact = 0;
|
|
struct target_old_sigaction *old_act;
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
|
|
goto efault;
|
|
act._sa_handler = old_act->_sa_handler;
|
|
target_siginitset(&act.sa_mask, old_act->sa_mask);
|
|
act.sa_flags = old_act->sa_flags;
|
|
act.sa_restorer = 0;
|
|
unlock_user_struct(old_act, arg2, 0);
|
|
pact = &act;
|
|
}
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact));
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
|
|
goto efault;
|
|
old_act->_sa_handler = oact._sa_handler;
|
|
old_act->sa_mask = oact.sa_mask.sig[0];
|
|
old_act->sa_flags = oact.sa_flags;
|
|
unlock_user_struct(old_act, arg3, 1);
|
|
}
|
|
#elif defined(TARGET_MIPS)
|
|
struct target_sigaction act, oact, *pact, *old_act;
|
|
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
|
|
goto efault;
|
|
act._sa_handler = old_act->_sa_handler;
|
|
target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
|
|
act.sa_flags = old_act->sa_flags;
|
|
unlock_user_struct(old_act, arg2, 0);
|
|
pact = &act;
|
|
} else {
|
|
pact = NULL;
|
|
}
|
|
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact));
|
|
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
|
|
goto efault;
|
|
old_act->_sa_handler = oact._sa_handler;
|
|
old_act->sa_flags = oact.sa_flags;
|
|
old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
|
|
old_act->sa_mask.sig[1] = 0;
|
|
old_act->sa_mask.sig[2] = 0;
|
|
old_act->sa_mask.sig[3] = 0;
|
|
unlock_user_struct(old_act, arg3, 1);
|
|
}
|
|
#else
|
|
struct target_old_sigaction *old_act;
|
|
struct target_sigaction act, oact, *pact;
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
|
|
goto efault;
|
|
act._sa_handler = old_act->_sa_handler;
|
|
target_siginitset(&act.sa_mask, old_act->sa_mask);
|
|
act.sa_flags = old_act->sa_flags;
|
|
act.sa_restorer = old_act->sa_restorer;
|
|
unlock_user_struct(old_act, arg2, 0);
|
|
pact = &act;
|
|
} else {
|
|
pact = NULL;
|
|
}
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact));
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
|
|
goto efault;
|
|
old_act->_sa_handler = oact._sa_handler;
|
|
old_act->sa_mask = oact.sa_mask.sig[0];
|
|
old_act->sa_flags = oact.sa_flags;
|
|
old_act->sa_restorer = oact.sa_restorer;
|
|
unlock_user_struct(old_act, arg3, 1);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_rt_sigaction:
|
|
{
|
|
#if defined(TARGET_ALPHA)
|
|
struct target_sigaction act, oact, *pact = 0;
|
|
struct target_rt_sigaction *rt_act;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
|
|
goto efault;
|
|
act._sa_handler = rt_act->_sa_handler;
|
|
act.sa_mask = rt_act->sa_mask;
|
|
act.sa_flags = rt_act->sa_flags;
|
|
act.sa_restorer = arg5;
|
|
unlock_user_struct(rt_act, arg2, 0);
|
|
pact = &act;
|
|
}
|
|
ret = get_errno(do_sigaction(arg1, pact, &oact));
|
|
if (!is_error(ret) && arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
|
|
goto efault;
|
|
rt_act->_sa_handler = oact._sa_handler;
|
|
rt_act->sa_mask = oact.sa_mask;
|
|
rt_act->sa_flags = oact.sa_flags;
|
|
unlock_user_struct(rt_act, arg3, 1);
|
|
}
|
|
#else
|
|
struct target_sigaction *act;
|
|
struct target_sigaction *oact;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
if (arg2) {
|
|
if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
|
|
goto efault;
|
|
} else
|
|
act = NULL;
|
|
if (arg3) {
|
|
if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
|
|
ret = -TARGET_EFAULT;
|
|
goto rt_sigaction_fail;
|
|
}
|
|
} else
|
|
oact = NULL;
|
|
ret = get_errno(do_sigaction(arg1, act, oact));
|
|
rt_sigaction_fail:
|
|
if (act)
|
|
unlock_user_struct(act, arg2, 0);
|
|
if (oact)
|
|
unlock_user_struct(oact, arg3, 1);
|
|
#endif
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_sgetmask /* not on alpha */
|
|
case TARGET_NR_sgetmask:
|
|
{
|
|
sigset_t cur_set;
|
|
abi_ulong target_set;
|
|
ret = do_sigprocmask(0, NULL, &cur_set);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&target_set, &cur_set);
|
|
ret = target_set;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_ssetmask /* not on alpha */
|
|
case TARGET_NR_ssetmask:
|
|
{
|
|
sigset_t set, oset, cur_set;
|
|
abi_ulong target_set = arg1;
|
|
/* We only have one word of the new mask so we must read
|
|
* the rest of it with do_sigprocmask() and OR in this word.
|
|
* We are guaranteed that a do_sigprocmask() that only queries
|
|
* the signal mask will not fail.
|
|
*/
|
|
ret = do_sigprocmask(0, NULL, &cur_set);
|
|
assert(!ret);
|
|
target_to_host_old_sigset(&set, &target_set);
|
|
sigorset(&set, &set, &cur_set);
|
|
ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&target_set, &oset);
|
|
ret = target_set;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_sigprocmask
|
|
case TARGET_NR_sigprocmask:
|
|
{
|
|
#if defined(TARGET_ALPHA)
|
|
sigset_t set, oldset;
|
|
abi_ulong mask;
|
|
int how;
|
|
|
|
switch (arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
mask = arg2;
|
|
target_to_host_old_sigset(&set, &mask);
|
|
|
|
ret = do_sigprocmask(how, &set, &oldset);
|
|
if (!is_error(ret)) {
|
|
host_to_target_old_sigset(&mask, &oldset);
|
|
ret = mask;
|
|
((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
|
|
}
|
|
#else
|
|
sigset_t set, oldset, *set_ptr;
|
|
int how;
|
|
|
|
if (arg2) {
|
|
switch (arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
|
|
goto efault;
|
|
target_to_host_old_sigset(&set, p);
|
|
unlock_user(p, arg2, 0);
|
|
set_ptr = &set;
|
|
} else {
|
|
how = 0;
|
|
set_ptr = NULL;
|
|
}
|
|
ret = do_sigprocmask(how, set_ptr, &oldset);
|
|
if (!is_error(ret) && arg3) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
|
|
goto efault;
|
|
host_to_target_old_sigset(p, &oldset);
|
|
unlock_user(p, arg3, sizeof(target_sigset_t));
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_rt_sigprocmask:
|
|
{
|
|
int how = arg1;
|
|
sigset_t set, oldset, *set_ptr;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (arg2) {
|
|
switch(how) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
|
|
goto efault;
|
|
target_to_host_sigset(&set, p);
|
|
unlock_user(p, arg2, 0);
|
|
set_ptr = &set;
|
|
} else {
|
|
how = 0;
|
|
set_ptr = NULL;
|
|
}
|
|
ret = do_sigprocmask(how, set_ptr, &oldset);
|
|
if (!is_error(ret) && arg3) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
|
|
goto efault;
|
|
host_to_target_sigset(p, &oldset);
|
|
unlock_user(p, arg3, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_sigpending
|
|
case TARGET_NR_sigpending:
|
|
{
|
|
sigset_t set;
|
|
ret = get_errno(sigpending(&set));
|
|
if (!is_error(ret)) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
|
|
goto efault;
|
|
host_to_target_old_sigset(p, &set);
|
|
unlock_user(p, arg1, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_rt_sigpending:
|
|
{
|
|
sigset_t set;
|
|
|
|
/* Yes, this check is >, not != like most. We follow the kernel's
|
|
* logic and it does it like this because it implements
|
|
* NR_sigpending through the same code path, and in that case
|
|
* the old_sigset_t is smaller in size.
|
|
*/
|
|
if (arg2 > sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
ret = get_errno(sigpending(&set));
|
|
if (!is_error(ret)) {
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
|
|
goto efault;
|
|
host_to_target_sigset(p, &set);
|
|
unlock_user(p, arg1, sizeof(target_sigset_t));
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_sigsuspend
|
|
case TARGET_NR_sigsuspend:
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
#if defined(TARGET_ALPHA)
|
|
abi_ulong mask = arg1;
|
|
target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
|
|
#else
|
|
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
|
|
goto efault;
|
|
target_to_host_old_sigset(&ts->sigsuspend_mask, p);
|
|
unlock_user(p, arg1, 0);
|
|
#endif
|
|
ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
|
|
SIGSET_T_SIZE));
|
|
if (ret != -TARGET_ERESTARTSYS) {
|
|
ts->in_sigsuspend = 1;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_rt_sigsuspend:
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
|
|
if (arg2 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
|
|
goto efault;
|
|
target_to_host_sigset(&ts->sigsuspend_mask, p);
|
|
unlock_user(p, arg1, 0);
|
|
ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
|
|
SIGSET_T_SIZE));
|
|
if (ret != -TARGET_ERESTARTSYS) {
|
|
ts->in_sigsuspend = 1;
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_rt_sigtimedwait:
|
|
{
|
|
sigset_t set;
|
|
struct timespec uts, *puts;
|
|
siginfo_t uinfo;
|
|
|
|
if (arg4 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
|
|
goto efault;
|
|
target_to_host_sigset(&set, p);
|
|
unlock_user(p, arg1, 0);
|
|
if (arg3) {
|
|
puts = &uts;
|
|
target_to_host_timespec(puts, arg3);
|
|
} else {
|
|
puts = NULL;
|
|
}
|
|
ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
|
|
SIGSET_T_SIZE));
|
|
if (!is_error(ret)) {
|
|
if (arg2) {
|
|
p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
|
|
0);
|
|
if (!p) {
|
|
goto efault;
|
|
}
|
|
host_to_target_siginfo(p, &uinfo);
|
|
unlock_user(p, arg2, sizeof(target_siginfo_t));
|
|
}
|
|
ret = host_to_target_signal(ret);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_rt_sigqueueinfo:
|
|
{
|
|
siginfo_t uinfo;
|
|
|
|
p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
|
|
if (!p) {
|
|
goto efault;
|
|
}
|
|
target_to_host_siginfo(&uinfo, p);
|
|
unlock_user(p, arg1, 0);
|
|
ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_sigreturn
|
|
case TARGET_NR_sigreturn:
|
|
if (block_signals()) {
|
|
ret = -TARGET_ERESTARTSYS;
|
|
} else {
|
|
ret = do_sigreturn(cpu_env);
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_rt_sigreturn:
|
|
if (block_signals()) {
|
|
ret = -TARGET_ERESTARTSYS;
|
|
} else {
|
|
ret = do_rt_sigreturn(cpu_env);
|
|
}
|
|
break;
|
|
case TARGET_NR_sethostname:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(sethostname(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
case TARGET_NR_setrlimit:
|
|
{
|
|
int resource = target_to_host_resource(arg1);
|
|
struct target_rlimit *target_rlim;
|
|
struct rlimit rlim;
|
|
if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
|
|
goto efault;
|
|
rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
|
|
rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 0);
|
|
ret = get_errno(setrlimit(resource, &rlim));
|
|
}
|
|
break;
|
|
case TARGET_NR_getrlimit:
|
|
{
|
|
int resource = target_to_host_resource(arg1);
|
|
struct target_rlimit *target_rlim;
|
|
struct rlimit rlim;
|
|
|
|
ret = get_errno(getrlimit(resource, &rlim));
|
|
if (!is_error(ret)) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
|
|
goto efault;
|
|
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
|
|
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 1);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_getrusage:
|
|
{
|
|
struct rusage rusage;
|
|
ret = get_errno(getrusage(arg1, &rusage));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_rusage(arg2, &rusage);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_gettimeofday:
|
|
{
|
|
struct timeval tv;
|
|
ret = get_errno(gettimeofday(&tv, NULL));
|
|
if (!is_error(ret)) {
|
|
if (copy_to_user_timeval(arg1, &tv))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_settimeofday:
|
|
{
|
|
struct timeval tv, *ptv = NULL;
|
|
struct timezone tz, *ptz = NULL;
|
|
|
|
if (arg1) {
|
|
if (copy_from_user_timeval(&tv, arg1)) {
|
|
goto efault;
|
|
}
|
|
ptv = &tv;
|
|
}
|
|
|
|
if (arg2) {
|
|
if (copy_from_user_timezone(&tz, arg2)) {
|
|
goto efault;
|
|
}
|
|
ptz = &tz;
|
|
}
|
|
|
|
ret = get_errno(settimeofday(ptv, ptz));
|
|
}
|
|
break;
|
|
#if defined(TARGET_NR_select)
|
|
case TARGET_NR_select:
|
|
#if defined(TARGET_S390X) || defined(TARGET_ALPHA)
|
|
ret = do_select(arg1, arg2, arg3, arg4, arg5);
|
|
#else
|
|
{
|
|
struct target_sel_arg_struct *sel;
|
|
abi_ulong inp, outp, exp, tvp;
|
|
long nsel;
|
|
|
|
if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
|
|
goto efault;
|
|
nsel = tswapal(sel->n);
|
|
inp = tswapal(sel->inp);
|
|
outp = tswapal(sel->outp);
|
|
exp = tswapal(sel->exp);
|
|
tvp = tswapal(sel->tvp);
|
|
unlock_user_struct(sel, arg1, 0);
|
|
ret = do_select(nsel, inp, outp, exp, tvp);
|
|
}
|
|
#endif
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_pselect6
|
|
case TARGET_NR_pselect6:
|
|
{
|
|
abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
|
|
fd_set rfds, wfds, efds;
|
|
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
|
|
struct timespec ts, *ts_ptr;
|
|
|
|
/*
|
|
* The 6th arg is actually two args smashed together,
|
|
* so we cannot use the C library.
|
|
*/
|
|
sigset_t set;
|
|
struct {
|
|
sigset_t *set;
|
|
size_t size;
|
|
} sig, *sig_ptr;
|
|
|
|
abi_ulong arg_sigset, arg_sigsize, *arg7;
|
|
target_sigset_t *target_sigset;
|
|
|
|
n = arg1;
|
|
rfd_addr = arg2;
|
|
wfd_addr = arg3;
|
|
efd_addr = arg4;
|
|
ts_addr = arg5;
|
|
|
|
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
|
|
if (ret) {
|
|
goto fail;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
|
|
if (ret) {
|
|
goto fail;
|
|
}
|
|
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
|
|
if (ret) {
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* This takes a timespec, and not a timeval, so we cannot
|
|
* use the do_select() helper ...
|
|
*/
|
|
if (ts_addr) {
|
|
if (target_to_host_timespec(&ts, ts_addr)) {
|
|
goto efault;
|
|
}
|
|
ts_ptr = &ts;
|
|
} else {
|
|
ts_ptr = NULL;
|
|
}
|
|
|
|
/* Extract the two packed args for the sigset */
|
|
if (arg6) {
|
|
sig_ptr = &sig;
|
|
sig.size = SIGSET_T_SIZE;
|
|
|
|
arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
|
|
if (!arg7) {
|
|
goto efault;
|
|
}
|
|
arg_sigset = tswapal(arg7[0]);
|
|
arg_sigsize = tswapal(arg7[1]);
|
|
unlock_user(arg7, arg6, 0);
|
|
|
|
if (arg_sigset) {
|
|
sig.set = &set;
|
|
if (arg_sigsize != sizeof(*target_sigset)) {
|
|
/* Like the kernel, we enforce correct size sigsets */
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
target_sigset = lock_user(VERIFY_READ, arg_sigset,
|
|
sizeof(*target_sigset), 1);
|
|
if (!target_sigset) {
|
|
goto efault;
|
|
}
|
|
target_to_host_sigset(&set, target_sigset);
|
|
unlock_user(target_sigset, arg_sigset, 0);
|
|
} else {
|
|
sig.set = NULL;
|
|
}
|
|
} else {
|
|
sig_ptr = NULL;
|
|
}
|
|
|
|
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
|
|
ts_ptr, sig_ptr));
|
|
|
|
if (!is_error(ret)) {
|
|
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
|
|
goto efault;
|
|
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
|
|
goto efault;
|
|
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
|
|
goto efault;
|
|
|
|
if (ts_addr && host_to_target_timespec(ts_addr, &ts))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_symlink
|
|
case TARGET_NR_symlink:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg2);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(symlink(p, p2));
|
|
unlock_user(p2, arg2, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_symlinkat)
|
|
case TARGET_NR_symlinkat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user_string(arg3);
|
|
if (!p || !p2)
|
|
ret = -TARGET_EFAULT;
|
|
else
|
|
ret = get_errno(symlinkat(p, arg2, p2));
|
|
unlock_user(p2, arg3, 0);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_oldlstat
|
|
case TARGET_NR_oldlstat:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_readlink
|
|
case TARGET_NR_readlink:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg1);
|
|
p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else if (!arg3) {
|
|
/* Short circuit this for the magic exe check. */
|
|
ret = -TARGET_EINVAL;
|
|
} else if (is_proc_myself((const char *)p, "exe")) {
|
|
char real[PATH_MAX], *temp;
|
|
temp = realpath(exec_path, real);
|
|
/* Return value is # of bytes that we wrote to the buffer. */
|
|
if (temp == NULL) {
|
|
ret = get_errno(-1);
|
|
} else {
|
|
/* Don't worry about sign mismatch as earlier mapping
|
|
* logic would have thrown a bad address error. */
|
|
ret = MIN(strlen(real), arg3);
|
|
/* We cannot NUL terminate the string. */
|
|
memcpy(p2, real, ret);
|
|
}
|
|
} else {
|
|
ret = get_errno(readlink(path(p), p2, arg3));
|
|
}
|
|
unlock_user(p2, arg2, ret);
|
|
unlock_user(p, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_readlinkat)
|
|
case TARGET_NR_readlinkat:
|
|
{
|
|
void *p2;
|
|
p = lock_user_string(arg2);
|
|
p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!p || !p2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else if (is_proc_myself((const char *)p, "exe")) {
|
|
char real[PATH_MAX], *temp;
|
|
temp = realpath(exec_path, real);
|
|
ret = temp == NULL ? get_errno(-1) : strlen(real) ;
|
|
snprintf((char *)p2, arg4, "%s", real);
|
|
} else {
|
|
ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
|
|
}
|
|
unlock_user(p2, arg3, ret);
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_uselib
|
|
case TARGET_NR_uselib:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_swapon
|
|
case TARGET_NR_swapon:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(swapon(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_reboot:
|
|
if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
|
|
/* arg4 must be ignored in all other cases */
|
|
p = lock_user_string(arg4);
|
|
if (!p) {
|
|
goto efault;
|
|
}
|
|
ret = get_errno(reboot(arg1, arg2, arg3, p));
|
|
unlock_user(p, arg4, 0);
|
|
} else {
|
|
ret = get_errno(reboot(arg1, arg2, arg3, NULL));
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_readdir
|
|
case TARGET_NR_readdir:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_mmap
|
|
case TARGET_NR_mmap:
|
|
#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
|
|
(defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
|
|
defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
|
|
|| defined(TARGET_S390X)
|
|
{
|
|
abi_ulong *v;
|
|
abi_ulong v1, v2, v3, v4, v5, v6;
|
|
if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
|
|
goto efault;
|
|
v1 = tswapal(v[0]);
|
|
v2 = tswapal(v[1]);
|
|
v3 = tswapal(v[2]);
|
|
v4 = tswapal(v[3]);
|
|
v5 = tswapal(v[4]);
|
|
v6 = tswapal(v[5]);
|
|
unlock_user(v, arg1, 0);
|
|
ret = get_errno(target_mmap(v1, v2, v3,
|
|
target_to_host_bitmask(v4, mmap_flags_tbl),
|
|
v5, v6));
|
|
}
|
|
#else
|
|
ret = get_errno(target_mmap(arg1, arg2, arg3,
|
|
target_to_host_bitmask(arg4, mmap_flags_tbl),
|
|
arg5,
|
|
arg6));
|
|
#endif
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_mmap2
|
|
case TARGET_NR_mmap2:
|
|
#ifndef MMAP_SHIFT
|
|
#define MMAP_SHIFT 12
|
|
#endif
|
|
ret = get_errno(target_mmap(arg1, arg2, arg3,
|
|
target_to_host_bitmask(arg4, mmap_flags_tbl),
|
|
arg5,
|
|
arg6 << MMAP_SHIFT));
|
|
break;
|
|
#endif
|
|
case TARGET_NR_munmap:
|
|
ret = get_errno(target_munmap(arg1, arg2));
|
|
break;
|
|
case TARGET_NR_mprotect:
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
/* Special hack to detect libc making the stack executable. */
|
|
if ((arg3 & PROT_GROWSDOWN)
|
|
&& arg1 >= ts->info->stack_limit
|
|
&& arg1 <= ts->info->start_stack) {
|
|
arg3 &= ~PROT_GROWSDOWN;
|
|
arg2 = arg2 + arg1 - ts->info->stack_limit;
|
|
arg1 = ts->info->stack_limit;
|
|
}
|
|
}
|
|
ret = get_errno(target_mprotect(arg1, arg2, arg3));
|
|
break;
|
|
#ifdef TARGET_NR_mremap
|
|
case TARGET_NR_mremap:
|
|
ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
|
|
break;
|
|
#endif
|
|
/* ??? msync/mlock/munlock are broken for softmmu. */
|
|
#ifdef TARGET_NR_msync
|
|
case TARGET_NR_msync:
|
|
ret = get_errno(msync(g2h(arg1), arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_mlock
|
|
case TARGET_NR_mlock:
|
|
ret = get_errno(mlock(g2h(arg1), arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_munlock
|
|
case TARGET_NR_munlock:
|
|
ret = get_errno(munlock(g2h(arg1), arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_mlockall
|
|
case TARGET_NR_mlockall:
|
|
ret = get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_munlockall
|
|
case TARGET_NR_munlockall:
|
|
ret = get_errno(munlockall());
|
|
break;
|
|
#endif
|
|
case TARGET_NR_truncate:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(truncate(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
case TARGET_NR_ftruncate:
|
|
ret = get_errno(ftruncate(arg1, arg2));
|
|
break;
|
|
case TARGET_NR_fchmod:
|
|
ret = get_errno(fchmod(arg1, arg2));
|
|
break;
|
|
#if defined(TARGET_NR_fchmodat)
|
|
case TARGET_NR_fchmodat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(fchmodat(arg1, p, arg3, 0));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_getpriority:
|
|
/* Note that negative values are valid for getpriority, so we must
|
|
differentiate based on errno settings. */
|
|
errno = 0;
|
|
ret = getpriority(arg1, arg2);
|
|
if (ret == -1 && errno != 0) {
|
|
ret = -host_to_target_errno(errno);
|
|
break;
|
|
}
|
|
#ifdef TARGET_ALPHA
|
|
/* Return value is the unbiased priority. Signal no error. */
|
|
((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
|
|
#else
|
|
/* Return value is a biased priority to avoid negative numbers. */
|
|
ret = 20 - ret;
|
|
#endif
|
|
break;
|
|
case TARGET_NR_setpriority:
|
|
ret = get_errno(setpriority(arg1, arg2, arg3));
|
|
break;
|
|
#ifdef TARGET_NR_profil
|
|
case TARGET_NR_profil:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_statfs:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(statfs(path(p), &stfs));
|
|
unlock_user(p, arg1, 0);
|
|
convert_statfs:
|
|
if (!is_error(ret)) {
|
|
struct target_statfs *target_stfs;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
|
|
goto efault;
|
|
__put_user(stfs.f_type, &target_stfs->f_type);
|
|
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
|
|
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
|
|
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
|
|
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
|
|
__put_user(stfs.f_files, &target_stfs->f_files);
|
|
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
|
|
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
|
|
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
|
|
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
|
|
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
|
|
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
|
|
unlock_user_struct(target_stfs, arg2, 1);
|
|
}
|
|
break;
|
|
case TARGET_NR_fstatfs:
|
|
ret = get_errno(fstatfs(arg1, &stfs));
|
|
goto convert_statfs;
|
|
#ifdef TARGET_NR_statfs64
|
|
case TARGET_NR_statfs64:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(statfs(path(p), &stfs));
|
|
unlock_user(p, arg1, 0);
|
|
convert_statfs64:
|
|
if (!is_error(ret)) {
|
|
struct target_statfs64 *target_stfs;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
|
|
goto efault;
|
|
__put_user(stfs.f_type, &target_stfs->f_type);
|
|
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
|
|
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
|
|
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
|
|
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
|
|
__put_user(stfs.f_files, &target_stfs->f_files);
|
|
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
|
|
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
|
|
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
|
|
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
|
|
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
|
|
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
|
|
unlock_user_struct(target_stfs, arg3, 1);
|
|
}
|
|
break;
|
|
case TARGET_NR_fstatfs64:
|
|
ret = get_errno(fstatfs(arg1, &stfs));
|
|
goto convert_statfs64;
|
|
#endif
|
|
#ifdef TARGET_NR_ioperm
|
|
case TARGET_NR_ioperm:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_socketcall
|
|
case TARGET_NR_socketcall:
|
|
ret = do_socketcall(arg1, arg2);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_accept
|
|
case TARGET_NR_accept:
|
|
ret = do_accept4(arg1, arg2, arg3, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_accept4
|
|
case TARGET_NR_accept4:
|
|
ret = do_accept4(arg1, arg2, arg3, arg4);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_bind
|
|
case TARGET_NR_bind:
|
|
ret = do_bind(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_connect
|
|
case TARGET_NR_connect:
|
|
ret = do_connect(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getpeername
|
|
case TARGET_NR_getpeername:
|
|
ret = do_getpeername(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getsockname
|
|
case TARGET_NR_getsockname:
|
|
ret = do_getsockname(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getsockopt
|
|
case TARGET_NR_getsockopt:
|
|
ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_listen
|
|
case TARGET_NR_listen:
|
|
ret = get_errno(listen(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_recv
|
|
case TARGET_NR_recv:
|
|
ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_recvfrom
|
|
case TARGET_NR_recvfrom:
|
|
ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_recvmsg
|
|
case TARGET_NR_recvmsg:
|
|
ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_send
|
|
case TARGET_NR_send:
|
|
ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_sendmsg
|
|
case TARGET_NR_sendmsg:
|
|
ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_sendmmsg
|
|
case TARGET_NR_sendmmsg:
|
|
ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
|
|
break;
|
|
case TARGET_NR_recvmmsg:
|
|
ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_sendto
|
|
case TARGET_NR_sendto:
|
|
ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_shutdown
|
|
case TARGET_NR_shutdown:
|
|
ret = get_errno(shutdown(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
|
|
case TARGET_NR_getrandom:
|
|
p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
|
|
if (!p) {
|
|
goto efault;
|
|
}
|
|
ret = get_errno(getrandom(p, arg2, arg3));
|
|
unlock_user(p, arg1, ret);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_socket
|
|
case TARGET_NR_socket:
|
|
ret = do_socket(arg1, arg2, arg3);
|
|
fd_trans_unregister(ret);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_socketpair
|
|
case TARGET_NR_socketpair:
|
|
ret = do_socketpair(arg1, arg2, arg3, arg4);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setsockopt
|
|
case TARGET_NR_setsockopt:
|
|
ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
|
|
break;
|
|
#endif
|
|
|
|
case TARGET_NR_syslog:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
|
|
case TARGET_NR_setitimer:
|
|
{
|
|
struct itimerval value, ovalue, *pvalue;
|
|
|
|
if (arg2) {
|
|
pvalue = &value;
|
|
if (copy_from_user_timeval(&pvalue->it_interval, arg2)
|
|
|| copy_from_user_timeval(&pvalue->it_value,
|
|
arg2 + sizeof(struct target_timeval)))
|
|
goto efault;
|
|
} else {
|
|
pvalue = NULL;
|
|
}
|
|
ret = get_errno(setitimer(arg1, pvalue, &ovalue));
|
|
if (!is_error(ret) && arg3) {
|
|
if (copy_to_user_timeval(arg3,
|
|
&ovalue.it_interval)
|
|
|| copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
|
|
&ovalue.it_value))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_getitimer:
|
|
{
|
|
struct itimerval value;
|
|
|
|
ret = get_errno(getitimer(arg1, &value));
|
|
if (!is_error(ret) && arg2) {
|
|
if (copy_to_user_timeval(arg2,
|
|
&value.it_interval)
|
|
|| copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
|
|
&value.it_value))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_stat
|
|
case TARGET_NR_stat:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(stat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
goto do_stat;
|
|
#endif
|
|
#ifdef TARGET_NR_lstat
|
|
case TARGET_NR_lstat:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(lstat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
goto do_stat;
|
|
#endif
|
|
case TARGET_NR_fstat:
|
|
{
|
|
ret = get_errno(fstat(arg1, &st));
|
|
#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
|
|
do_stat:
|
|
#endif
|
|
if (!is_error(ret)) {
|
|
struct target_stat *target_st;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
|
|
goto efault;
|
|
memset(target_st, 0, sizeof(*target_st));
|
|
__put_user(st.st_dev, &target_st->st_dev);
|
|
__put_user(st.st_ino, &target_st->st_ino);
|
|
__put_user(st.st_mode, &target_st->st_mode);
|
|
__put_user(st.st_uid, &target_st->st_uid);
|
|
__put_user(st.st_gid, &target_st->st_gid);
|
|
__put_user(st.st_nlink, &target_st->st_nlink);
|
|
__put_user(st.st_rdev, &target_st->st_rdev);
|
|
__put_user(st.st_size, &target_st->st_size);
|
|
__put_user(st.st_blksize, &target_st->st_blksize);
|
|
__put_user(st.st_blocks, &target_st->st_blocks);
|
|
__put_user(st.st_atime, &target_st->target_st_atime);
|
|
__put_user(st.st_mtime, &target_st->target_st_mtime);
|
|
__put_user(st.st_ctime, &target_st->target_st_ctime);
|
|
unlock_user_struct(target_st, arg2, 1);
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_olduname
|
|
case TARGET_NR_olduname:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_iopl
|
|
case TARGET_NR_iopl:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_vhangup:
|
|
ret = get_errno(vhangup());
|
|
break;
|
|
#ifdef TARGET_NR_idle
|
|
case TARGET_NR_idle:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_syscall
|
|
case TARGET_NR_syscall:
|
|
ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
|
|
arg6, arg7, arg8, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_wait4:
|
|
{
|
|
int status;
|
|
abi_long status_ptr = arg2;
|
|
struct rusage rusage, *rusage_ptr;
|
|
abi_ulong target_rusage = arg4;
|
|
abi_long rusage_err;
|
|
if (target_rusage)
|
|
rusage_ptr = &rusage;
|
|
else
|
|
rusage_ptr = NULL;
|
|
ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
|
|
if (!is_error(ret)) {
|
|
if (status_ptr && ret) {
|
|
status = host_to_target_waitstatus(status);
|
|
if (put_user_s32(status, status_ptr))
|
|
goto efault;
|
|
}
|
|
if (target_rusage) {
|
|
rusage_err = host_to_target_rusage(target_rusage, &rusage);
|
|
if (rusage_err) {
|
|
ret = rusage_err;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_swapoff
|
|
case TARGET_NR_swapoff:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(swapoff(p));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_sysinfo:
|
|
{
|
|
struct target_sysinfo *target_value;
|
|
struct sysinfo value;
|
|
ret = get_errno(sysinfo(&value));
|
|
if (!is_error(ret) && arg1)
|
|
{
|
|
if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
|
|
goto efault;
|
|
__put_user(value.uptime, &target_value->uptime);
|
|
__put_user(value.loads[0], &target_value->loads[0]);
|
|
__put_user(value.loads[1], &target_value->loads[1]);
|
|
__put_user(value.loads[2], &target_value->loads[2]);
|
|
__put_user(value.totalram, &target_value->totalram);
|
|
__put_user(value.freeram, &target_value->freeram);
|
|
__put_user(value.sharedram, &target_value->sharedram);
|
|
__put_user(value.bufferram, &target_value->bufferram);
|
|
__put_user(value.totalswap, &target_value->totalswap);
|
|
__put_user(value.freeswap, &target_value->freeswap);
|
|
__put_user(value.procs, &target_value->procs);
|
|
__put_user(value.totalhigh, &target_value->totalhigh);
|
|
__put_user(value.freehigh, &target_value->freehigh);
|
|
__put_user(value.mem_unit, &target_value->mem_unit);
|
|
unlock_user_struct(target_value, arg1, 1);
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_ipc
|
|
case TARGET_NR_ipc:
|
|
ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_semget
|
|
case TARGET_NR_semget:
|
|
ret = get_errno(semget(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_semop
|
|
case TARGET_NR_semop:
|
|
ret = do_semop(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_semctl
|
|
case TARGET_NR_semctl:
|
|
ret = do_semctl(arg1, arg2, arg3, arg4);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_msgctl
|
|
case TARGET_NR_msgctl:
|
|
ret = do_msgctl(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_msgget
|
|
case TARGET_NR_msgget:
|
|
ret = get_errno(msgget(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_msgrcv
|
|
case TARGET_NR_msgrcv:
|
|
ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_msgsnd
|
|
case TARGET_NR_msgsnd:
|
|
ret = do_msgsnd(arg1, arg2, arg3, arg4);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_shmget
|
|
case TARGET_NR_shmget:
|
|
ret = get_errno(shmget(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_shmctl
|
|
case TARGET_NR_shmctl:
|
|
ret = do_shmctl(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_shmat
|
|
case TARGET_NR_shmat:
|
|
ret = do_shmat(arg1, arg2, arg3);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_shmdt
|
|
case TARGET_NR_shmdt:
|
|
ret = do_shmdt(arg1);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_fsync:
|
|
ret = get_errno(fsync(arg1));
|
|
break;
|
|
case TARGET_NR_clone:
|
|
/* Linux manages to have three different orderings for its
|
|
* arguments to clone(); the BACKWARDS and BACKWARDS2 defines
|
|
* match the kernel's CONFIG_CLONE_* settings.
|
|
* Microblaze is further special in that it uses a sixth
|
|
* implicit argument to clone for the TLS pointer.
|
|
*/
|
|
#if defined(TARGET_MICROBLAZE)
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
|
|
#elif defined(TARGET_CLONE_BACKWARDS)
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
|
|
#elif defined(TARGET_CLONE_BACKWARDS2)
|
|
ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
|
|
#else
|
|
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
|
|
#endif
|
|
break;
|
|
#ifdef __NR_exit_group
|
|
/* new thread calls */
|
|
case TARGET_NR_exit_group:
|
|
#ifdef TARGET_GPROF
|
|
_mcleanup();
|
|
#endif
|
|
gdb_exit(cpu_env, arg1);
|
|
ret = get_errno(exit_group(arg1));
|
|
break;
|
|
#endif
|
|
case TARGET_NR_setdomainname:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(setdomainname(p, arg2));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
case TARGET_NR_uname:
|
|
/* no need to transcode because we use the linux syscall */
|
|
{
|
|
struct new_utsname * buf;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
|
|
goto efault;
|
|
ret = get_errno(sys_uname(buf));
|
|
if (!is_error(ret)) {
|
|
/* Overwrite the native machine name with whatever is being
|
|
emulated. */
|
|
strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
|
|
/* Allow the user to override the reported release. */
|
|
if (qemu_uname_release && *qemu_uname_release) {
|
|
g_strlcpy(buf->release, qemu_uname_release,
|
|
sizeof(buf->release));
|
|
}
|
|
}
|
|
unlock_user_struct(buf, arg1, 1);
|
|
}
|
|
break;
|
|
#ifdef TARGET_I386
|
|
case TARGET_NR_modify_ldt:
|
|
ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
|
|
break;
|
|
#if !defined(TARGET_X86_64)
|
|
case TARGET_NR_vm86old:
|
|
goto unimplemented;
|
|
case TARGET_NR_vm86:
|
|
ret = do_vm86(cpu_env, arg1, arg2);
|
|
break;
|
|
#endif
|
|
#endif
|
|
case TARGET_NR_adjtimex:
|
|
goto unimplemented;
|
|
#ifdef TARGET_NR_create_module
|
|
case TARGET_NR_create_module:
|
|
#endif
|
|
case TARGET_NR_init_module:
|
|
case TARGET_NR_delete_module:
|
|
#ifdef TARGET_NR_get_kernel_syms
|
|
case TARGET_NR_get_kernel_syms:
|
|
#endif
|
|
goto unimplemented;
|
|
case TARGET_NR_quotactl:
|
|
goto unimplemented;
|
|
case TARGET_NR_getpgid:
|
|
ret = get_errno(getpgid(arg1));
|
|
break;
|
|
case TARGET_NR_fchdir:
|
|
ret = get_errno(fchdir(arg1));
|
|
break;
|
|
#ifdef TARGET_NR_bdflush /* not on x86_64 */
|
|
case TARGET_NR_bdflush:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_sysfs
|
|
case TARGET_NR_sysfs:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_personality:
|
|
ret = get_errno(personality(arg1));
|
|
break;
|
|
#ifdef TARGET_NR_afs_syscall
|
|
case TARGET_NR_afs_syscall:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR__llseek /* Not on alpha */
|
|
case TARGET_NR__llseek:
|
|
{
|
|
int64_t res;
|
|
#if !defined(__NR_llseek)
|
|
res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
|
|
if (res == -1) {
|
|
ret = get_errno(res);
|
|
} else {
|
|
ret = 0;
|
|
}
|
|
#else
|
|
ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
|
|
#endif
|
|
if ((ret == 0) && put_user_s64(res, arg4)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getdents
|
|
case TARGET_NR_getdents:
|
|
#ifdef __NR_getdents
|
|
#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
|
|
{
|
|
struct target_dirent *target_dirp;
|
|
struct linux_dirent *dirp;
|
|
abi_long count = arg3;
|
|
|
|
dirp = g_try_malloc(count);
|
|
if (!dirp) {
|
|
ret = -TARGET_ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
ret = get_errno(sys_getdents(arg1, dirp, count));
|
|
if (!is_error(ret)) {
|
|
struct linux_dirent *de;
|
|
struct target_dirent *tde;
|
|
int len = ret;
|
|
int reclen, treclen;
|
|
int count1, tnamelen;
|
|
|
|
count1 = 0;
|
|
de = dirp;
|
|
if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
|
|
goto efault;
|
|
tde = target_dirp;
|
|
while (len > 0) {
|
|
reclen = de->d_reclen;
|
|
tnamelen = reclen - offsetof(struct linux_dirent, d_name);
|
|
assert(tnamelen >= 0);
|
|
treclen = tnamelen + offsetof(struct target_dirent, d_name);
|
|
assert(count1 + treclen <= count);
|
|
tde->d_reclen = tswap16(treclen);
|
|
tde->d_ino = tswapal(de->d_ino);
|
|
tde->d_off = tswapal(de->d_off);
|
|
memcpy(tde->d_name, de->d_name, tnamelen);
|
|
de = (struct linux_dirent *)((char *)de + reclen);
|
|
len -= reclen;
|
|
tde = (struct target_dirent *)((char *)tde + treclen);
|
|
count1 += treclen;
|
|
}
|
|
ret = count1;
|
|
unlock_user(target_dirp, arg2, ret);
|
|
}
|
|
g_free(dirp);
|
|
}
|
|
#else
|
|
{
|
|
struct linux_dirent *dirp;
|
|
abi_long count = arg3;
|
|
|
|
if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
|
|
goto efault;
|
|
ret = get_errno(sys_getdents(arg1, dirp, count));
|
|
if (!is_error(ret)) {
|
|
struct linux_dirent *de;
|
|
int len = ret;
|
|
int reclen;
|
|
de = dirp;
|
|
while (len > 0) {
|
|
reclen = de->d_reclen;
|
|
if (reclen > len)
|
|
break;
|
|
de->d_reclen = tswap16(reclen);
|
|
tswapls(&de->d_ino);
|
|
tswapls(&de->d_off);
|
|
de = (struct linux_dirent *)((char *)de + reclen);
|
|
len -= reclen;
|
|
}
|
|
}
|
|
unlock_user(dirp, arg2, ret);
|
|
}
|
|
#endif
|
|
#else
|
|
/* Implement getdents in terms of getdents64 */
|
|
{
|
|
struct linux_dirent64 *dirp;
|
|
abi_long count = arg3;
|
|
|
|
dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
|
|
if (!dirp) {
|
|
goto efault;
|
|
}
|
|
ret = get_errno(sys_getdents64(arg1, dirp, count));
|
|
if (!is_error(ret)) {
|
|
/* Convert the dirent64 structs to target dirent. We do this
|
|
* in-place, since we can guarantee that a target_dirent is no
|
|
* larger than a dirent64; however this means we have to be
|
|
* careful to read everything before writing in the new format.
|
|
*/
|
|
struct linux_dirent64 *de;
|
|
struct target_dirent *tde;
|
|
int len = ret;
|
|
int tlen = 0;
|
|
|
|
de = dirp;
|
|
tde = (struct target_dirent *)dirp;
|
|
while (len > 0) {
|
|
int namelen, treclen;
|
|
int reclen = de->d_reclen;
|
|
uint64_t ino = de->d_ino;
|
|
int64_t off = de->d_off;
|
|
uint8_t type = de->d_type;
|
|
|
|
namelen = strlen(de->d_name);
|
|
treclen = offsetof(struct target_dirent, d_name)
|
|
+ namelen + 2;
|
|
treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
|
|
|
|
memmove(tde->d_name, de->d_name, namelen + 1);
|
|
tde->d_ino = tswapal(ino);
|
|
tde->d_off = tswapal(off);
|
|
tde->d_reclen = tswap16(treclen);
|
|
/* The target_dirent type is in what was formerly a padding
|
|
* byte at the end of the structure:
|
|
*/
|
|
*(((char *)tde) + treclen - 1) = type;
|
|
|
|
de = (struct linux_dirent64 *)((char *)de + reclen);
|
|
tde = (struct target_dirent *)((char *)tde + treclen);
|
|
len -= reclen;
|
|
tlen += treclen;
|
|
}
|
|
ret = tlen;
|
|
}
|
|
unlock_user(dirp, arg2, ret);
|
|
}
|
|
#endif
|
|
break;
|
|
#endif /* TARGET_NR_getdents */
|
|
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
|
|
case TARGET_NR_getdents64:
|
|
{
|
|
struct linux_dirent64 *dirp;
|
|
abi_long count = arg3;
|
|
if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
|
|
goto efault;
|
|
ret = get_errno(sys_getdents64(arg1, dirp, count));
|
|
if (!is_error(ret)) {
|
|
struct linux_dirent64 *de;
|
|
int len = ret;
|
|
int reclen;
|
|
de = dirp;
|
|
while (len > 0) {
|
|
reclen = de->d_reclen;
|
|
if (reclen > len)
|
|
break;
|
|
de->d_reclen = tswap16(reclen);
|
|
tswap64s((uint64_t *)&de->d_ino);
|
|
tswap64s((uint64_t *)&de->d_off);
|
|
de = (struct linux_dirent64 *)((char *)de + reclen);
|
|
len -= reclen;
|
|
}
|
|
}
|
|
unlock_user(dirp, arg2, ret);
|
|
}
|
|
break;
|
|
#endif /* TARGET_NR_getdents64 */
|
|
#if defined(TARGET_NR__newselect)
|
|
case TARGET_NR__newselect:
|
|
ret = do_select(arg1, arg2, arg3, arg4, arg5);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
|
|
# ifdef TARGET_NR_poll
|
|
case TARGET_NR_poll:
|
|
# endif
|
|
# ifdef TARGET_NR_ppoll
|
|
case TARGET_NR_ppoll:
|
|
# endif
|
|
{
|
|
struct target_pollfd *target_pfd;
|
|
unsigned int nfds = arg2;
|
|
struct pollfd *pfd;
|
|
unsigned int i;
|
|
|
|
pfd = NULL;
|
|
target_pfd = NULL;
|
|
if (nfds) {
|
|
if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
target_pfd = lock_user(VERIFY_WRITE, arg1,
|
|
sizeof(struct target_pollfd) * nfds, 1);
|
|
if (!target_pfd) {
|
|
goto efault;
|
|
}
|
|
|
|
pfd = alloca(sizeof(struct pollfd) * nfds);
|
|
for (i = 0; i < nfds; i++) {
|
|
pfd[i].fd = tswap32(target_pfd[i].fd);
|
|
pfd[i].events = tswap16(target_pfd[i].events);
|
|
}
|
|
}
|
|
|
|
switch (num) {
|
|
# ifdef TARGET_NR_ppoll
|
|
case TARGET_NR_ppoll:
|
|
{
|
|
struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
|
|
target_sigset_t *target_set;
|
|
sigset_t _set, *set = &_set;
|
|
|
|
if (arg3) {
|
|
if (target_to_host_timespec(timeout_ts, arg3)) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
goto efault;
|
|
}
|
|
} else {
|
|
timeout_ts = NULL;
|
|
}
|
|
|
|
if (arg4) {
|
|
if (arg5 != sizeof(target_sigset_t)) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
|
|
if (!target_set) {
|
|
unlock_user(target_pfd, arg1, 0);
|
|
goto efault;
|
|
}
|
|
target_to_host_sigset(set, target_set);
|
|
} else {
|
|
set = NULL;
|
|
}
|
|
|
|
ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
|
|
set, SIGSET_T_SIZE));
|
|
|
|
if (!is_error(ret) && arg3) {
|
|
host_to_target_timespec(arg3, timeout_ts);
|
|
}
|
|
if (arg4) {
|
|
unlock_user(target_set, arg4, 0);
|
|
}
|
|
break;
|
|
}
|
|
# endif
|
|
# ifdef TARGET_NR_poll
|
|
case TARGET_NR_poll:
|
|
{
|
|
struct timespec ts, *pts;
|
|
|
|
if (arg3 >= 0) {
|
|
/* Convert ms to secs, ns */
|
|
ts.tv_sec = arg3 / 1000;
|
|
ts.tv_nsec = (arg3 % 1000) * 1000000LL;
|
|
pts = &ts;
|
|
} else {
|
|
/* -ve poll() timeout means "infinite" */
|
|
pts = NULL;
|
|
}
|
|
ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
|
|
break;
|
|
}
|
|
# endif
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
if (!is_error(ret)) {
|
|
for(i = 0; i < nfds; i++) {
|
|
target_pfd[i].revents = tswap16(pfd[i].revents);
|
|
}
|
|
}
|
|
unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_flock:
|
|
/* NOTE: the flock constant seems to be the same for every
|
|
Linux platform */
|
|
ret = get_errno(safe_flock(arg1, arg2));
|
|
break;
|
|
case TARGET_NR_readv:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (vec != NULL) {
|
|
ret = get_errno(safe_readv(arg1, vec, arg3));
|
|
unlock_iovec(vec, arg2, arg3, 1);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_writev:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
|
|
if (vec != NULL) {
|
|
ret = get_errno(safe_writev(arg1, vec, arg3));
|
|
unlock_iovec(vec, arg2, arg3, 0);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_getsid:
|
|
ret = get_errno(getsid(arg1));
|
|
break;
|
|
#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
|
|
case TARGET_NR_fdatasync:
|
|
ret = get_errno(fdatasync(arg1));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR__sysctl
|
|
case TARGET_NR__sysctl:
|
|
/* We don't implement this, but ENOTDIR is always a safe
|
|
return value. */
|
|
ret = -TARGET_ENOTDIR;
|
|
break;
|
|
#endif
|
|
case TARGET_NR_sched_getaffinity:
|
|
{
|
|
unsigned int mask_size;
|
|
unsigned long *mask;
|
|
|
|
/*
|
|
* sched_getaffinity needs multiples of ulong, so need to take
|
|
* care of mismatches between target ulong and host ulong sizes.
|
|
*/
|
|
if (arg2 & (sizeof(abi_ulong) - 1)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
|
|
|
|
mask = alloca(mask_size);
|
|
ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
|
|
|
|
if (!is_error(ret)) {
|
|
if (ret > arg2) {
|
|
/* More data returned than the caller's buffer will fit.
|
|
* This only happens if sizeof(abi_long) < sizeof(long)
|
|
* and the caller passed us a buffer holding an odd number
|
|
* of abi_longs. If the host kernel is actually using the
|
|
* extra 4 bytes then fail EINVAL; otherwise we can just
|
|
* ignore them and only copy the interesting part.
|
|
*/
|
|
int numcpus = sysconf(_SC_NPROCESSORS_CONF);
|
|
if (numcpus > arg2 * 8) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
ret = arg2;
|
|
}
|
|
|
|
if (copy_to_user(arg3, mask, ret)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_sched_setaffinity:
|
|
{
|
|
unsigned int mask_size;
|
|
unsigned long *mask;
|
|
|
|
/*
|
|
* sched_setaffinity needs multiples of ulong, so need to take
|
|
* care of mismatches between target ulong and host ulong sizes.
|
|
*/
|
|
if (arg2 & (sizeof(abi_ulong) - 1)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
|
|
|
|
mask = alloca(mask_size);
|
|
if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
|
|
goto efault;
|
|
}
|
|
memcpy(mask, p, arg2);
|
|
unlock_user_struct(p, arg2, 0);
|
|
|
|
ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
|
|
}
|
|
break;
|
|
case TARGET_NR_sched_setparam:
|
|
{
|
|
struct sched_param *target_schp;
|
|
struct sched_param schp;
|
|
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
|
|
goto efault;
|
|
schp.sched_priority = tswap32(target_schp->sched_priority);
|
|
unlock_user_struct(target_schp, arg2, 0);
|
|
ret = get_errno(sched_setparam(arg1, &schp));
|
|
}
|
|
break;
|
|
case TARGET_NR_sched_getparam:
|
|
{
|
|
struct sched_param *target_schp;
|
|
struct sched_param schp;
|
|
|
|
if (arg2 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
ret = get_errno(sched_getparam(arg1, &schp));
|
|
if (!is_error(ret)) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
|
|
goto efault;
|
|
target_schp->sched_priority = tswap32(schp.sched_priority);
|
|
unlock_user_struct(target_schp, arg2, 1);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_sched_setscheduler:
|
|
{
|
|
struct sched_param *target_schp;
|
|
struct sched_param schp;
|
|
if (arg3 == 0) {
|
|
return -TARGET_EINVAL;
|
|
}
|
|
if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
|
|
goto efault;
|
|
schp.sched_priority = tswap32(target_schp->sched_priority);
|
|
unlock_user_struct(target_schp, arg3, 0);
|
|
ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
|
|
}
|
|
break;
|
|
case TARGET_NR_sched_getscheduler:
|
|
ret = get_errno(sched_getscheduler(arg1));
|
|
break;
|
|
case TARGET_NR_sched_yield:
|
|
ret = get_errno(sched_yield());
|
|
break;
|
|
case TARGET_NR_sched_get_priority_max:
|
|
ret = get_errno(sched_get_priority_max(arg1));
|
|
break;
|
|
case TARGET_NR_sched_get_priority_min:
|
|
ret = get_errno(sched_get_priority_min(arg1));
|
|
break;
|
|
case TARGET_NR_sched_rr_get_interval:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(sched_rr_get_interval(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
ret = host_to_target_timespec(arg2, &ts);
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_nanosleep:
|
|
{
|
|
struct timespec req, rem;
|
|
target_to_host_timespec(&req, arg1);
|
|
ret = get_errno(safe_nanosleep(&req, &rem));
|
|
if (is_error(ret) && arg2) {
|
|
host_to_target_timespec(arg2, &rem);
|
|
}
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_query_module
|
|
case TARGET_NR_query_module:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_nfsservctl
|
|
case TARGET_NR_nfsservctl:
|
|
goto unimplemented;
|
|
#endif
|
|
case TARGET_NR_prctl:
|
|
switch (arg1) {
|
|
case PR_GET_PDEATHSIG:
|
|
{
|
|
int deathsig;
|
|
ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
|
|
if (!is_error(ret) && arg2
|
|
&& put_user_ual(deathsig, arg2)) {
|
|
goto efault;
|
|
}
|
|
break;
|
|
}
|
|
#ifdef PR_GET_NAME
|
|
case PR_GET_NAME:
|
|
{
|
|
void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
|
|
if (!name) {
|
|
goto efault;
|
|
}
|
|
ret = get_errno(prctl(arg1, (unsigned long)name,
|
|
arg3, arg4, arg5));
|
|
unlock_user(name, arg2, 16);
|
|
break;
|
|
}
|
|
case PR_SET_NAME:
|
|
{
|
|
void *name = lock_user(VERIFY_READ, arg2, 16, 1);
|
|
if (!name) {
|
|
goto efault;
|
|
}
|
|
ret = get_errno(prctl(arg1, (unsigned long)name,
|
|
arg3, arg4, arg5));
|
|
unlock_user(name, arg2, 0);
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
/* Most prctl options have no pointer arguments */
|
|
ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
|
|
break;
|
|
}
|
|
break;
|
|
#ifdef TARGET_NR_arch_prctl
|
|
case TARGET_NR_arch_prctl:
|
|
#if defined(TARGET_I386) && !defined(TARGET_ABI32)
|
|
ret = do_arch_prctl(cpu_env, arg1, arg2);
|
|
break;
|
|
#else
|
|
goto unimplemented;
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_pread64
|
|
case TARGET_NR_pread64:
|
|
if (regpairs_aligned(cpu_env)) {
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
|
|
goto efault;
|
|
ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
|
unlock_user(p, arg2, ret);
|
|
break;
|
|
case TARGET_NR_pwrite64:
|
|
if (regpairs_aligned(cpu_env)) {
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
|
|
goto efault;
|
|
ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_getcwd:
|
|
if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
|
|
goto efault;
|
|
ret = get_errno(sys_getcwd1(p, arg2));
|
|
unlock_user(p, arg1, ret);
|
|
break;
|
|
case TARGET_NR_capget:
|
|
case TARGET_NR_capset:
|
|
{
|
|
struct target_user_cap_header *target_header;
|
|
struct target_user_cap_data *target_data = NULL;
|
|
struct __user_cap_header_struct header;
|
|
struct __user_cap_data_struct data[2];
|
|
struct __user_cap_data_struct *dataptr = NULL;
|
|
int i, target_datalen;
|
|
int data_items = 1;
|
|
|
|
if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
|
|
goto efault;
|
|
}
|
|
header.version = tswap32(target_header->version);
|
|
header.pid = tswap32(target_header->pid);
|
|
|
|
if (header.version != _LINUX_CAPABILITY_VERSION) {
|
|
/* Version 2 and up takes pointer to two user_data structs */
|
|
data_items = 2;
|
|
}
|
|
|
|
target_datalen = sizeof(*target_data) * data_items;
|
|
|
|
if (arg2) {
|
|
if (num == TARGET_NR_capget) {
|
|
target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
|
|
} else {
|
|
target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
|
|
}
|
|
if (!target_data) {
|
|
unlock_user_struct(target_header, arg1, 0);
|
|
goto efault;
|
|
}
|
|
|
|
if (num == TARGET_NR_capset) {
|
|
for (i = 0; i < data_items; i++) {
|
|
data[i].effective = tswap32(target_data[i].effective);
|
|
data[i].permitted = tswap32(target_data[i].permitted);
|
|
data[i].inheritable = tswap32(target_data[i].inheritable);
|
|
}
|
|
}
|
|
|
|
dataptr = data;
|
|
}
|
|
|
|
if (num == TARGET_NR_capget) {
|
|
ret = get_errno(capget(&header, dataptr));
|
|
} else {
|
|
ret = get_errno(capset(&header, dataptr));
|
|
}
|
|
|
|
/* The kernel always updates version for both capget and capset */
|
|
target_header->version = tswap32(header.version);
|
|
unlock_user_struct(target_header, arg1, 1);
|
|
|
|
if (arg2) {
|
|
if (num == TARGET_NR_capget) {
|
|
for (i = 0; i < data_items; i++) {
|
|
target_data[i].effective = tswap32(data[i].effective);
|
|
target_data[i].permitted = tswap32(data[i].permitted);
|
|
target_data[i].inheritable = tswap32(data[i].inheritable);
|
|
}
|
|
unlock_user(target_data, arg2, target_datalen);
|
|
} else {
|
|
unlock_user(target_data, arg2, 0);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case TARGET_NR_sigaltstack:
|
|
ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
|
|
break;
|
|
|
|
#ifdef CONFIG_SENDFILE
|
|
case TARGET_NR_sendfile:
|
|
{
|
|
off_t *offp = NULL;
|
|
off_t off;
|
|
if (arg3) {
|
|
ret = get_user_sal(off, arg3);
|
|
if (is_error(ret)) {
|
|
break;
|
|
}
|
|
offp = &off;
|
|
}
|
|
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
|
|
if (!is_error(ret) && arg3) {
|
|
abi_long ret2 = put_user_sal(off, arg3);
|
|
if (is_error(ret2)) {
|
|
ret = ret2;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#ifdef TARGET_NR_sendfile64
|
|
case TARGET_NR_sendfile64:
|
|
{
|
|
off_t *offp = NULL;
|
|
off_t off;
|
|
if (arg3) {
|
|
ret = get_user_s64(off, arg3);
|
|
if (is_error(ret)) {
|
|
break;
|
|
}
|
|
offp = &off;
|
|
}
|
|
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
|
|
if (!is_error(ret) && arg3) {
|
|
abi_long ret2 = put_user_s64(off, arg3);
|
|
if (is_error(ret2)) {
|
|
ret = ret2;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#else
|
|
case TARGET_NR_sendfile:
|
|
#ifdef TARGET_NR_sendfile64
|
|
case TARGET_NR_sendfile64:
|
|
#endif
|
|
goto unimplemented;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_getpmsg
|
|
case TARGET_NR_getpmsg:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_putpmsg
|
|
case TARGET_NR_putpmsg:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_vfork
|
|
case TARGET_NR_vfork:
|
|
ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
|
|
0, 0, 0, 0));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_ugetrlimit
|
|
case TARGET_NR_ugetrlimit:
|
|
{
|
|
struct rlimit rlim;
|
|
int resource = target_to_host_resource(arg1);
|
|
ret = get_errno(getrlimit(resource, &rlim));
|
|
if (!is_error(ret)) {
|
|
struct target_rlimit *target_rlim;
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
|
|
goto efault;
|
|
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
|
|
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
|
|
unlock_user_struct(target_rlim, arg2, 1);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_truncate64
|
|
case TARGET_NR_truncate64:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_ftruncate64
|
|
case TARGET_NR_ftruncate64:
|
|
ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_stat64
|
|
case TARGET_NR_stat64:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(stat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_lstat64
|
|
case TARGET_NR_lstat64:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(lstat(path(p), &st));
|
|
unlock_user(p, arg1, 0);
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_fstat64
|
|
case TARGET_NR_fstat64:
|
|
ret = get_errno(fstat(arg1, &st));
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg2, &st);
|
|
break;
|
|
#endif
|
|
#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
|
|
#ifdef TARGET_NR_fstatat64
|
|
case TARGET_NR_fstatat64:
|
|
#endif
|
|
#ifdef TARGET_NR_newfstatat
|
|
case TARGET_NR_newfstatat:
|
|
#endif
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(fstatat(arg1, path(p), &st, arg4));
|
|
if (!is_error(ret))
|
|
ret = host_to_target_stat64(cpu_env, arg3, &st);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_lchown
|
|
case TARGET_NR_lchown:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getuid
|
|
case TARGET_NR_getuid:
|
|
ret = get_errno(high2lowuid(getuid()));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getgid
|
|
case TARGET_NR_getgid:
|
|
ret = get_errno(high2lowgid(getgid()));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_geteuid
|
|
case TARGET_NR_geteuid:
|
|
ret = get_errno(high2lowuid(geteuid()));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getegid
|
|
case TARGET_NR_getegid:
|
|
ret = get_errno(high2lowgid(getegid()));
|
|
break;
|
|
#endif
|
|
case TARGET_NR_setreuid:
|
|
ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
|
|
break;
|
|
case TARGET_NR_setregid:
|
|
ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
|
|
break;
|
|
case TARGET_NR_getgroups:
|
|
{
|
|
int gidsetsize = arg1;
|
|
target_id *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
ret = get_errno(getgroups(gidsetsize, grouplist));
|
|
if (gidsetsize == 0)
|
|
break;
|
|
if (!is_error(ret)) {
|
|
target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
|
|
if (!target_grouplist)
|
|
goto efault;
|
|
for(i = 0;i < ret; i++)
|
|
target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
|
|
unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
|
|
}
|
|
}
|
|
break;
|
|
case TARGET_NR_setgroups:
|
|
{
|
|
int gidsetsize = arg1;
|
|
target_id *target_grouplist;
|
|
gid_t *grouplist = NULL;
|
|
int i;
|
|
if (gidsetsize) {
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
|
|
if (!target_grouplist) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
for (i = 0; i < gidsetsize; i++) {
|
|
grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
|
|
}
|
|
unlock_user(target_grouplist, arg2, 0);
|
|
}
|
|
ret = get_errno(setgroups(gidsetsize, grouplist));
|
|
}
|
|
break;
|
|
case TARGET_NR_fchown:
|
|
ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
|
|
break;
|
|
#if defined(TARGET_NR_fchownat)
|
|
case TARGET_NR_fchownat:
|
|
if (!(p = lock_user_string(arg2)))
|
|
goto efault;
|
|
ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
|
|
low2highgid(arg4), arg5));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setresuid
|
|
case TARGET_NR_setresuid:
|
|
ret = get_errno(sys_setresuid(low2highuid(arg1),
|
|
low2highuid(arg2),
|
|
low2highuid(arg3)));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getresuid
|
|
case TARGET_NR_getresuid:
|
|
{
|
|
uid_t ruid, euid, suid;
|
|
ret = get_errno(getresuid(&ruid, &euid, &suid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_id(high2lowuid(ruid), arg1)
|
|
|| put_user_id(high2lowuid(euid), arg2)
|
|
|| put_user_id(high2lowuid(suid), arg3))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid
|
|
case TARGET_NR_setresgid:
|
|
ret = get_errno(sys_setresgid(low2highgid(arg1),
|
|
low2highgid(arg2),
|
|
low2highgid(arg3)));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid
|
|
case TARGET_NR_getresgid:
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
ret = get_errno(getresgid(&rgid, &egid, &sgid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_id(high2lowgid(rgid), arg1)
|
|
|| put_user_id(high2lowgid(egid), arg2)
|
|
|| put_user_id(high2lowgid(sgid), arg3))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_chown
|
|
case TARGET_NR_chown:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
case TARGET_NR_setuid:
|
|
ret = get_errno(sys_setuid(low2highuid(arg1)));
|
|
break;
|
|
case TARGET_NR_setgid:
|
|
ret = get_errno(sys_setgid(low2highgid(arg1)));
|
|
break;
|
|
case TARGET_NR_setfsuid:
|
|
ret = get_errno(setfsuid(arg1));
|
|
break;
|
|
case TARGET_NR_setfsgid:
|
|
ret = get_errno(setfsgid(arg1));
|
|
break;
|
|
|
|
#ifdef TARGET_NR_lchown32
|
|
case TARGET_NR_lchown32:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(lchown(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getuid32
|
|
case TARGET_NR_getuid32:
|
|
ret = get_errno(getuid());
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxuid:
|
|
{
|
|
uid_t euid;
|
|
euid=geteuid();
|
|
((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
|
|
}
|
|
ret = get_errno(getuid());
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_getxgid:
|
|
{
|
|
uid_t egid;
|
|
egid=getegid();
|
|
((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
|
|
}
|
|
ret = get_errno(getgid());
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_osf_getsysinfo:
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
switch (arg1) {
|
|
case TARGET_GSI_IEEE_FP_CONTROL:
|
|
{
|
|
uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
|
|
|
|
/* Copied from linux ieee_fpcr_to_swcr. */
|
|
swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
|
|
swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
|
|
swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
|
|
| SWCR_TRAP_ENABLE_DZE
|
|
| SWCR_TRAP_ENABLE_OVF);
|
|
swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
|
|
| SWCR_TRAP_ENABLE_INE);
|
|
swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
|
|
swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
|
|
|
|
if (put_user_u64 (swcr, arg2))
|
|
goto efault;
|
|
ret = 0;
|
|
}
|
|
break;
|
|
|
|
/* case GSI_IEEE_STATE_AT_SIGNAL:
|
|
-- Not implemented in linux kernel.
|
|
case GSI_UACPROC:
|
|
-- Retrieves current unaligned access state; not much used.
|
|
case GSI_PROC_TYPE:
|
|
-- Retrieves implver information; surely not used.
|
|
case GSI_GET_HWRPB:
|
|
-- Grabs a copy of the HWRPB; surely not used.
|
|
*/
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
|
|
/* Alpha specific */
|
|
case TARGET_NR_osf_setsysinfo:
|
|
ret = -TARGET_EOPNOTSUPP;
|
|
switch (arg1) {
|
|
case TARGET_SSI_IEEE_FP_CONTROL:
|
|
{
|
|
uint64_t swcr, fpcr, orig_fpcr;
|
|
|
|
if (get_user_u64 (swcr, arg2)) {
|
|
goto efault;
|
|
}
|
|
orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
|
|
fpcr = orig_fpcr & FPCR_DYN_MASK;
|
|
|
|
/* Copied from linux ieee_swcr_to_fpcr. */
|
|
fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
|
|
fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
|
|
fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
|
|
| SWCR_TRAP_ENABLE_DZE
|
|
| SWCR_TRAP_ENABLE_OVF)) << 48;
|
|
fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
|
|
| SWCR_TRAP_ENABLE_INE)) << 57;
|
|
fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
|
|
fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
|
|
|
|
cpu_alpha_store_fpcr(cpu_env, fpcr);
|
|
ret = 0;
|
|
}
|
|
break;
|
|
|
|
case TARGET_SSI_IEEE_RAISE_EXCEPTION:
|
|
{
|
|
uint64_t exc, fpcr, orig_fpcr;
|
|
int si_code;
|
|
|
|
if (get_user_u64(exc, arg2)) {
|
|
goto efault;
|
|
}
|
|
|
|
orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
|
|
|
|
/* We only add to the exception status here. */
|
|
fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
|
|
|
|
cpu_alpha_store_fpcr(cpu_env, fpcr);
|
|
ret = 0;
|
|
|
|
/* Old exceptions are not signaled. */
|
|
fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
|
|
|
|
/* If any exceptions set by this call,
|
|
and are unmasked, send a signal. */
|
|
si_code = 0;
|
|
if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
|
|
si_code = TARGET_FPE_FLTRES;
|
|
}
|
|
if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
|
|
si_code = TARGET_FPE_FLTUND;
|
|
}
|
|
if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
|
|
si_code = TARGET_FPE_FLTOVF;
|
|
}
|
|
if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
|
|
si_code = TARGET_FPE_FLTDIV;
|
|
}
|
|
if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
|
|
si_code = TARGET_FPE_FLTINV;
|
|
}
|
|
if (si_code != 0) {
|
|
target_siginfo_t info;
|
|
info.si_signo = SIGFPE;
|
|
info.si_errno = 0;
|
|
info.si_code = si_code;
|
|
info._sifields._sigfault._addr
|
|
= ((CPUArchState *)cpu_env)->pc;
|
|
queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* case SSI_NVPAIRS:
|
|
-- Used with SSIN_UACPROC to enable unaligned accesses.
|
|
case SSI_IEEE_STATE_AT_SIGNAL:
|
|
case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
|
|
-- Not implemented in linux kernel
|
|
*/
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_osf_sigprocmask
|
|
/* Alpha specific. */
|
|
case TARGET_NR_osf_sigprocmask:
|
|
{
|
|
abi_ulong mask;
|
|
int how;
|
|
sigset_t set, oldset;
|
|
|
|
switch(arg1) {
|
|
case TARGET_SIG_BLOCK:
|
|
how = SIG_BLOCK;
|
|
break;
|
|
case TARGET_SIG_UNBLOCK:
|
|
how = SIG_UNBLOCK;
|
|
break;
|
|
case TARGET_SIG_SETMASK:
|
|
how = SIG_SETMASK;
|
|
break;
|
|
default:
|
|
ret = -TARGET_EINVAL;
|
|
goto fail;
|
|
}
|
|
mask = arg2;
|
|
target_to_host_old_sigset(&set, &mask);
|
|
ret = do_sigprocmask(how, &set, &oldset);
|
|
if (!ret) {
|
|
host_to_target_old_sigset(&mask, &oldset);
|
|
ret = mask;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_getgid32
|
|
case TARGET_NR_getgid32:
|
|
ret = get_errno(getgid());
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_geteuid32
|
|
case TARGET_NR_geteuid32:
|
|
ret = get_errno(geteuid());
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getegid32
|
|
case TARGET_NR_getegid32:
|
|
ret = get_errno(getegid());
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setreuid32
|
|
case TARGET_NR_setreuid32:
|
|
ret = get_errno(setreuid(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setregid32
|
|
case TARGET_NR_setregid32:
|
|
ret = get_errno(setregid(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getgroups32
|
|
case TARGET_NR_getgroups32:
|
|
{
|
|
int gidsetsize = arg1;
|
|
uint32_t *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
ret = get_errno(getgroups(gidsetsize, grouplist));
|
|
if (gidsetsize == 0)
|
|
break;
|
|
if (!is_error(ret)) {
|
|
target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
|
|
if (!target_grouplist) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
for(i = 0;i < ret; i++)
|
|
target_grouplist[i] = tswap32(grouplist[i]);
|
|
unlock_user(target_grouplist, arg2, gidsetsize * 4);
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setgroups32
|
|
case TARGET_NR_setgroups32:
|
|
{
|
|
int gidsetsize = arg1;
|
|
uint32_t *target_grouplist;
|
|
gid_t *grouplist;
|
|
int i;
|
|
|
|
grouplist = alloca(gidsetsize * sizeof(gid_t));
|
|
target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
|
|
if (!target_grouplist) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
for(i = 0;i < gidsetsize; i++)
|
|
grouplist[i] = tswap32(target_grouplist[i]);
|
|
unlock_user(target_grouplist, arg2, 0);
|
|
ret = get_errno(setgroups(gidsetsize, grouplist));
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_fchown32
|
|
case TARGET_NR_fchown32:
|
|
ret = get_errno(fchown(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setresuid32
|
|
case TARGET_NR_setresuid32:
|
|
ret = get_errno(sys_setresuid(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getresuid32
|
|
case TARGET_NR_getresuid32:
|
|
{
|
|
uid_t ruid, euid, suid;
|
|
ret = get_errno(getresuid(&ruid, &euid, &suid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_u32(ruid, arg1)
|
|
|| put_user_u32(euid, arg2)
|
|
|| put_user_u32(suid, arg3))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setresgid32
|
|
case TARGET_NR_setresgid32:
|
|
ret = get_errno(sys_setresgid(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_getresgid32
|
|
case TARGET_NR_getresgid32:
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
ret = get_errno(getresgid(&rgid, &egid, &sgid));
|
|
if (!is_error(ret)) {
|
|
if (put_user_u32(rgid, arg1)
|
|
|| put_user_u32(egid, arg2)
|
|
|| put_user_u32(sgid, arg3))
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_chown32
|
|
case TARGET_NR_chown32:
|
|
if (!(p = lock_user_string(arg1)))
|
|
goto efault;
|
|
ret = get_errno(chown(p, arg2, arg3));
|
|
unlock_user(p, arg1, 0);
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setuid32
|
|
case TARGET_NR_setuid32:
|
|
ret = get_errno(sys_setuid(arg1));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setgid32
|
|
case TARGET_NR_setgid32:
|
|
ret = get_errno(sys_setgid(arg1));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setfsuid32
|
|
case TARGET_NR_setfsuid32:
|
|
ret = get_errno(setfsuid(arg1));
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_setfsgid32
|
|
case TARGET_NR_setfsgid32:
|
|
ret = get_errno(setfsgid(arg1));
|
|
break;
|
|
#endif
|
|
|
|
case TARGET_NR_pivot_root:
|
|
goto unimplemented;
|
|
#ifdef TARGET_NR_mincore
|
|
case TARGET_NR_mincore:
|
|
{
|
|
void *a;
|
|
ret = -TARGET_EFAULT;
|
|
if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
|
|
goto efault;
|
|
if (!(p = lock_user_string(arg3)))
|
|
goto mincore_fail;
|
|
ret = get_errno(mincore(a, arg2, p));
|
|
unlock_user(p, arg3, ret);
|
|
mincore_fail:
|
|
unlock_user(a, arg1, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_arm_fadvise64_64
|
|
case TARGET_NR_arm_fadvise64_64:
|
|
/* arm_fadvise64_64 looks like fadvise64_64 but
|
|
* with different argument order: fd, advice, offset, len
|
|
* rather than the usual fd, offset, len, advice.
|
|
* Note that offset and len are both 64-bit so appear as
|
|
* pairs of 32-bit registers.
|
|
*/
|
|
ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg2);
|
|
ret = -host_to_target_errno(ret);
|
|
break;
|
|
#endif
|
|
|
|
#if TARGET_ABI_BITS == 32
|
|
|
|
#ifdef TARGET_NR_fadvise64_64
|
|
case TARGET_NR_fadvise64_64:
|
|
/* 6 args: fd, offset (high, low), len (high, low), advice */
|
|
if (regpairs_aligned(cpu_env)) {
|
|
/* offset is in (3,4), len in (5,6) and advice in 7 */
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
arg6 = arg7;
|
|
}
|
|
ret = -host_to_target_errno(posix_fadvise(arg1,
|
|
target_offset64(arg2, arg3),
|
|
target_offset64(arg4, arg5),
|
|
arg6));
|
|
break;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_fadvise64
|
|
case TARGET_NR_fadvise64:
|
|
/* 5 args: fd, offset (high, low), len, advice */
|
|
if (regpairs_aligned(cpu_env)) {
|
|
/* offset is in (3,4), len in 5 and advice in 6 */
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
arg5 = arg6;
|
|
}
|
|
ret = -host_to_target_errno(posix_fadvise(arg1,
|
|
target_offset64(arg2, arg3),
|
|
arg4, arg5));
|
|
break;
|
|
#endif
|
|
|
|
#else /* not a 32-bit ABI */
|
|
#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
|
|
#ifdef TARGET_NR_fadvise64_64
|
|
case TARGET_NR_fadvise64_64:
|
|
#endif
|
|
#ifdef TARGET_NR_fadvise64
|
|
case TARGET_NR_fadvise64:
|
|
#endif
|
|
#ifdef TARGET_S390X
|
|
switch (arg4) {
|
|
case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
|
|
case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
|
|
case 6: arg4 = POSIX_FADV_DONTNEED; break;
|
|
case 7: arg4 = POSIX_FADV_NOREUSE; break;
|
|
default: break;
|
|
}
|
|
#endif
|
|
ret = -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
|
|
break;
|
|
#endif
|
|
#endif /* end of 64-bit ABI fadvise handling */
|
|
|
|
#ifdef TARGET_NR_madvise
|
|
case TARGET_NR_madvise:
|
|
/* A straight passthrough may not be safe because qemu sometimes
|
|
turns private file-backed mappings into anonymous mappings.
|
|
This will break MADV_DONTNEED.
|
|
This is a hint, so ignoring and returning success is ok. */
|
|
ret = get_errno(0);
|
|
break;
|
|
#endif
|
|
#if TARGET_ABI_BITS == 32
|
|
case TARGET_NR_fcntl64:
|
|
{
|
|
int cmd;
|
|
struct flock64 fl;
|
|
from_flock64_fn *copyfrom = copy_from_user_flock64;
|
|
to_flock64_fn *copyto = copy_to_user_flock64;
|
|
|
|
#ifdef TARGET_ARM
|
|
if (((CPUARMState *)cpu_env)->eabi) {
|
|
copyfrom = copy_from_user_eabi_flock64;
|
|
copyto = copy_to_user_eabi_flock64;
|
|
}
|
|
#endif
|
|
|
|
cmd = target_to_host_fcntl_cmd(arg2);
|
|
if (cmd == -TARGET_EINVAL) {
|
|
ret = cmd;
|
|
break;
|
|
}
|
|
|
|
switch(arg2) {
|
|
case TARGET_F_GETLK64:
|
|
ret = copyfrom(&fl, arg3);
|
|
if (ret) {
|
|
break;
|
|
}
|
|
ret = get_errno(fcntl(arg1, cmd, &fl));
|
|
if (ret == 0) {
|
|
ret = copyto(arg3, &fl);
|
|
}
|
|
break;
|
|
|
|
case TARGET_F_SETLK64:
|
|
case TARGET_F_SETLKW64:
|
|
ret = copyfrom(&fl, arg3);
|
|
if (ret) {
|
|
break;
|
|
}
|
|
ret = get_errno(safe_fcntl(arg1, cmd, &fl));
|
|
break;
|
|
default:
|
|
ret = do_fcntl(arg1, arg2, arg3);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_cacheflush
|
|
case TARGET_NR_cacheflush:
|
|
/* self-modifying code is handled automatically, so nothing needed */
|
|
ret = 0;
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_security
|
|
case TARGET_NR_security:
|
|
goto unimplemented;
|
|
#endif
|
|
#ifdef TARGET_NR_getpagesize
|
|
case TARGET_NR_getpagesize:
|
|
ret = TARGET_PAGE_SIZE;
|
|
break;
|
|
#endif
|
|
case TARGET_NR_gettid:
|
|
ret = get_errno(gettid());
|
|
break;
|
|
#ifdef TARGET_NR_readahead
|
|
case TARGET_NR_readahead:
|
|
#if TARGET_ABI_BITS == 32
|
|
if (regpairs_aligned(cpu_env)) {
|
|
arg2 = arg3;
|
|
arg3 = arg4;
|
|
arg4 = arg5;
|
|
}
|
|
ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
|
|
#else
|
|
ret = get_errno(readahead(arg1, arg2, arg3));
|
|
#endif
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_ATTR
|
|
#ifdef TARGET_NR_setxattr
|
|
case TARGET_NR_listxattr:
|
|
case TARGET_NR_llistxattr:
|
|
{
|
|
void *p, *b = 0;
|
|
if (arg2) {
|
|
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!b) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
if (p) {
|
|
if (num == TARGET_NR_listxattr) {
|
|
ret = get_errno(listxattr(p, b, arg3));
|
|
} else {
|
|
ret = get_errno(llistxattr(p, b, arg3));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(b, arg2, arg3);
|
|
break;
|
|
}
|
|
case TARGET_NR_flistxattr:
|
|
{
|
|
void *b = 0;
|
|
if (arg2) {
|
|
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
|
|
if (!b) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
ret = get_errno(flistxattr(arg1, b, arg3));
|
|
unlock_user(b, arg2, arg3);
|
|
break;
|
|
}
|
|
case TARGET_NR_setxattr:
|
|
case TARGET_NR_lsetxattr:
|
|
{
|
|
void *p, *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_READ, arg3, arg4, 1);
|
|
if (!v) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_setxattr) {
|
|
ret = get_errno(setxattr(p, n, v, arg4, arg5));
|
|
} else {
|
|
ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, 0);
|
|
}
|
|
break;
|
|
case TARGET_NR_fsetxattr:
|
|
{
|
|
void *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_READ, arg3, arg4, 1);
|
|
if (!v) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, 0);
|
|
}
|
|
break;
|
|
case TARGET_NR_getxattr:
|
|
case TARGET_NR_lgetxattr:
|
|
{
|
|
void *p, *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!v) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_getxattr) {
|
|
ret = get_errno(getxattr(p, n, v, arg4));
|
|
} else {
|
|
ret = get_errno(lgetxattr(p, n, v, arg4));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, arg4);
|
|
}
|
|
break;
|
|
case TARGET_NR_fgetxattr:
|
|
{
|
|
void *n, *v = 0;
|
|
if (arg3) {
|
|
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
|
|
if (!v) {
|
|
ret = -TARGET_EFAULT;
|
|
break;
|
|
}
|
|
}
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fgetxattr(arg1, n, v, arg4));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
unlock_user(v, arg3, arg4);
|
|
}
|
|
break;
|
|
case TARGET_NR_removexattr:
|
|
case TARGET_NR_lremovexattr:
|
|
{
|
|
void *p, *n;
|
|
p = lock_user_string(arg1);
|
|
n = lock_user_string(arg2);
|
|
if (p && n) {
|
|
if (num == TARGET_NR_removexattr) {
|
|
ret = get_errno(removexattr(p, n));
|
|
} else {
|
|
ret = get_errno(lremovexattr(p, n));
|
|
}
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(p, arg1, 0);
|
|
unlock_user(n, arg2, 0);
|
|
}
|
|
break;
|
|
case TARGET_NR_fremovexattr:
|
|
{
|
|
void *n;
|
|
n = lock_user_string(arg2);
|
|
if (n) {
|
|
ret = get_errno(fremovexattr(arg1, n));
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
unlock_user(n, arg2, 0);
|
|
}
|
|
break;
|
|
#endif
|
|
#endif /* CONFIG_ATTR */
|
|
#ifdef TARGET_NR_set_thread_area
|
|
case TARGET_NR_set_thread_area:
|
|
#if defined(TARGET_MIPS)
|
|
((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
|
|
ret = 0;
|
|
break;
|
|
#elif defined(TARGET_CRIS)
|
|
if (arg1 & 0xff)
|
|
ret = -TARGET_EINVAL;
|
|
else {
|
|
((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
|
|
ret = 0;
|
|
}
|
|
break;
|
|
#elif defined(TARGET_I386) && defined(TARGET_ABI32)
|
|
ret = do_set_thread_area(cpu_env, arg1);
|
|
break;
|
|
#elif defined(TARGET_M68K)
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
ts->tp_value = arg1;
|
|
ret = 0;
|
|
break;
|
|
}
|
|
#else
|
|
goto unimplemented_nowarn;
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_get_thread_area
|
|
case TARGET_NR_get_thread_area:
|
|
#if defined(TARGET_I386) && defined(TARGET_ABI32)
|
|
ret = do_get_thread_area(cpu_env, arg1);
|
|
break;
|
|
#elif defined(TARGET_M68K)
|
|
{
|
|
TaskState *ts = cpu->opaque;
|
|
ret = ts->tp_value;
|
|
break;
|
|
}
|
|
#else
|
|
goto unimplemented_nowarn;
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_getdomainname
|
|
case TARGET_NR_getdomainname:
|
|
goto unimplemented_nowarn;
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_clock_gettime
|
|
case TARGET_NR_clock_gettime:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_gettime(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
host_to_target_timespec(arg2, &ts);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_getres
|
|
case TARGET_NR_clock_getres:
|
|
{
|
|
struct timespec ts;
|
|
ret = get_errno(clock_getres(arg1, &ts));
|
|
if (!is_error(ret)) {
|
|
host_to_target_timespec(arg2, &ts);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_clock_nanosleep
|
|
case TARGET_NR_clock_nanosleep:
|
|
{
|
|
struct timespec ts;
|
|
target_to_host_timespec(&ts, arg3);
|
|
ret = get_errno(safe_clock_nanosleep(arg1, arg2,
|
|
&ts, arg4 ? &ts : NULL));
|
|
if (arg4)
|
|
host_to_target_timespec(arg4, &ts);
|
|
|
|
#if defined(TARGET_PPC)
|
|
/* clock_nanosleep is odd in that it returns positive errno values.
|
|
* On PPC, CR0 bit 3 should be set in such a situation. */
|
|
if (ret && ret != -TARGET_ERESTARTSYS) {
|
|
((CPUPPCState *)cpu_env)->crf[0] |= 1;
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
|
|
case TARGET_NR_set_tid_address:
|
|
ret = get_errno(set_tid_address((int *)g2h(arg1)));
|
|
break;
|
|
#endif
|
|
|
|
case TARGET_NR_tkill:
|
|
ret = get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
|
|
break;
|
|
|
|
case TARGET_NR_tgkill:
|
|
ret = get_errno(safe_tgkill((int)arg1, (int)arg2,
|
|
target_to_host_signal(arg3)));
|
|
break;
|
|
|
|
#ifdef TARGET_NR_set_robust_list
|
|
case TARGET_NR_set_robust_list:
|
|
case TARGET_NR_get_robust_list:
|
|
/* The ABI for supporting robust futexes has userspace pass
|
|
* the kernel a pointer to a linked list which is updated by
|
|
* userspace after the syscall; the list is walked by the kernel
|
|
* when the thread exits. Since the linked list in QEMU guest
|
|
* memory isn't a valid linked list for the host and we have
|
|
* no way to reliably intercept the thread-death event, we can't
|
|
* support these. Silently return ENOSYS so that guest userspace
|
|
* falls back to a non-robust futex implementation (which should
|
|
* be OK except in the corner case of the guest crashing while
|
|
* holding a mutex that is shared with another process via
|
|
* shared memory).
|
|
*/
|
|
goto unimplemented_nowarn;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_utimensat)
|
|
case TARGET_NR_utimensat:
|
|
{
|
|
struct timespec *tsp, ts[2];
|
|
if (!arg3) {
|
|
tsp = NULL;
|
|
} else {
|
|
target_to_host_timespec(ts, arg3);
|
|
target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
|
|
tsp = ts;
|
|
}
|
|
if (!arg2)
|
|
ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
|
|
else {
|
|
if (!(p = lock_user_string(arg2))) {
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|
|
ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
|
|
unlock_user(p, arg2, 0);
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case TARGET_NR_futex:
|
|
ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
|
|
break;
|
|
#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
|
|
case TARGET_NR_inotify_init:
|
|
ret = get_errno(sys_inotify_init());
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_INOTIFY1
|
|
#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
|
|
case TARGET_NR_inotify_init1:
|
|
ret = get_errno(sys_inotify_init1(arg1));
|
|
break;
|
|
#endif
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
|
|
case TARGET_NR_inotify_add_watch:
|
|
p = lock_user_string(arg2);
|
|
ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
|
|
unlock_user(p, arg2, 0);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
|
|
case TARGET_NR_inotify_rm_watch:
|
|
ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
|
|
case TARGET_NR_mq_open:
|
|
{
|
|
struct mq_attr posix_mq_attr, *attrp;
|
|
|
|
p = lock_user_string(arg1 - 1);
|
|
if (arg4 != 0) {
|
|
copy_from_user_mq_attr (&posix_mq_attr, arg4);
|
|
attrp = &posix_mq_attr;
|
|
} else {
|
|
attrp = 0;
|
|
}
|
|
ret = get_errno(mq_open(p, arg2, arg3, attrp));
|
|
unlock_user (p, arg1, 0);
|
|
}
|
|
break;
|
|
|
|
case TARGET_NR_mq_unlink:
|
|
p = lock_user_string(arg1 - 1);
|
|
ret = get_errno(mq_unlink(p));
|
|
unlock_user (p, arg1, 0);
|
|
break;
|
|
|
|
case TARGET_NR_mq_timedsend:
|
|
{
|
|
struct timespec ts;
|
|
|
|
p = lock_user (VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
target_to_host_timespec(&ts, arg5);
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
|
|
host_to_target_timespec(arg5, &ts);
|
|
} else {
|
|
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
|
|
}
|
|
unlock_user (p, arg2, arg3);
|
|
}
|
|
break;
|
|
|
|
case TARGET_NR_mq_timedreceive:
|
|
{
|
|
struct timespec ts;
|
|
unsigned int prio;
|
|
|
|
p = lock_user (VERIFY_READ, arg2, arg3, 1);
|
|
if (arg5 != 0) {
|
|
target_to_host_timespec(&ts, arg5);
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, &ts));
|
|
host_to_target_timespec(arg5, &ts);
|
|
} else {
|
|
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
|
|
&prio, NULL));
|
|
}
|
|
unlock_user (p, arg2, arg3);
|
|
if (arg4 != 0)
|
|
put_user_u32(prio, arg4);
|
|
}
|
|
break;
|
|
|
|
/* Not implemented for now... */
|
|
/* case TARGET_NR_mq_notify: */
|
|
/* break; */
|
|
|
|
case TARGET_NR_mq_getsetattr:
|
|
{
|
|
struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
|
|
ret = 0;
|
|
if (arg3 != 0) {
|
|
ret = mq_getattr(arg1, &posix_mq_attr_out);
|
|
copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
|
|
}
|
|
if (arg2 != 0) {
|
|
copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
|
|
ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
|
|
}
|
|
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_SPLICE
|
|
#ifdef TARGET_NR_tee
|
|
case TARGET_NR_tee:
|
|
{
|
|
ret = get_errno(tee(arg1,arg2,arg3,arg4));
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_splice
|
|
case TARGET_NR_splice:
|
|
{
|
|
loff_t loff_in, loff_out;
|
|
loff_t *ploff_in = NULL, *ploff_out = NULL;
|
|
if (arg2) {
|
|
if (get_user_u64(loff_in, arg2)) {
|
|
goto efault;
|
|
}
|
|
ploff_in = &loff_in;
|
|
}
|
|
if (arg4) {
|
|
if (get_user_u64(loff_out, arg4)) {
|
|
goto efault;
|
|
}
|
|
ploff_out = &loff_out;
|
|
}
|
|
ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
|
|
if (arg2) {
|
|
if (put_user_u64(loff_in, arg2)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
if (arg4) {
|
|
if (put_user_u64(loff_out, arg4)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef TARGET_NR_vmsplice
|
|
case TARGET_NR_vmsplice:
|
|
{
|
|
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
|
|
if (vec != NULL) {
|
|
ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
|
|
unlock_iovec(vec, arg2, arg3, 0);
|
|
} else {
|
|
ret = -host_to_target_errno(errno);
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#endif /* CONFIG_SPLICE */
|
|
#ifdef CONFIG_EVENTFD
|
|
#if defined(TARGET_NR_eventfd)
|
|
case TARGET_NR_eventfd:
|
|
ret = get_errno(eventfd(arg1, 0));
|
|
fd_trans_unregister(ret);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_eventfd2)
|
|
case TARGET_NR_eventfd2:
|
|
{
|
|
int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
|
|
if (arg2 & TARGET_O_NONBLOCK) {
|
|
host_flags |= O_NONBLOCK;
|
|
}
|
|
if (arg2 & TARGET_O_CLOEXEC) {
|
|
host_flags |= O_CLOEXEC;
|
|
}
|
|
ret = get_errno(eventfd(arg1, host_flags));
|
|
fd_trans_unregister(ret);
|
|
break;
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_EVENTFD */
|
|
#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
|
|
case TARGET_NR_fallocate:
|
|
#if TARGET_ABI_BITS == 32
|
|
ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6)));
|
|
#else
|
|
ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
|
|
#endif
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_SYNC_FILE_RANGE)
|
|
#if defined(TARGET_NR_sync_file_range)
|
|
case TARGET_NR_sync_file_range:
|
|
#if TARGET_ABI_BITS == 32
|
|
#if defined(TARGET_MIPS)
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg7));
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
|
|
target_offset64(arg4, arg5), arg6));
|
|
#endif /* !TARGET_MIPS */
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
|
|
#endif
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_sync_file_range2)
|
|
case TARGET_NR_sync_file_range2:
|
|
/* This is like sync_file_range but the arguments are reordered */
|
|
#if TARGET_ABI_BITS == 32
|
|
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
|
|
target_offset64(arg5, arg6), arg2));
|
|
#else
|
|
ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
|
|
#endif
|
|
break;
|
|
#endif
|
|
#endif
|
|
#if defined(TARGET_NR_signalfd4)
|
|
case TARGET_NR_signalfd4:
|
|
ret = do_signalfd4(arg1, arg2, arg4);
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_signalfd)
|
|
case TARGET_NR_signalfd:
|
|
ret = do_signalfd4(arg1, arg2, 0);
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_EPOLL)
|
|
#if defined(TARGET_NR_epoll_create)
|
|
case TARGET_NR_epoll_create:
|
|
ret = get_errno(epoll_create(arg1));
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
|
|
case TARGET_NR_epoll_create1:
|
|
ret = get_errno(epoll_create1(arg1));
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_ctl)
|
|
case TARGET_NR_epoll_ctl:
|
|
{
|
|
struct epoll_event ep;
|
|
struct epoll_event *epp = 0;
|
|
if (arg4) {
|
|
struct target_epoll_event *target_ep;
|
|
if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
|
|
goto efault;
|
|
}
|
|
ep.events = tswap32(target_ep->events);
|
|
/* The epoll_data_t union is just opaque data to the kernel,
|
|
* so we transfer all 64 bits across and need not worry what
|
|
* actual data type it is.
|
|
*/
|
|
ep.data.u64 = tswap64(target_ep->data.u64);
|
|
unlock_user_struct(target_ep, arg4, 0);
|
|
epp = &ep;
|
|
}
|
|
ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
|
|
#if defined(TARGET_NR_epoll_wait)
|
|
case TARGET_NR_epoll_wait:
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_pwait)
|
|
case TARGET_NR_epoll_pwait:
|
|
#endif
|
|
{
|
|
struct target_epoll_event *target_ep;
|
|
struct epoll_event *ep;
|
|
int epfd = arg1;
|
|
int maxevents = arg3;
|
|
int timeout = arg4;
|
|
|
|
if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
target_ep = lock_user(VERIFY_WRITE, arg2,
|
|
maxevents * sizeof(struct target_epoll_event), 1);
|
|
if (!target_ep) {
|
|
goto efault;
|
|
}
|
|
|
|
ep = alloca(maxevents * sizeof(struct epoll_event));
|
|
|
|
switch (num) {
|
|
#if defined(TARGET_NR_epoll_pwait)
|
|
case TARGET_NR_epoll_pwait:
|
|
{
|
|
target_sigset_t *target_set;
|
|
sigset_t _set, *set = &_set;
|
|
|
|
if (arg5) {
|
|
if (arg6 != sizeof(target_sigset_t)) {
|
|
ret = -TARGET_EINVAL;
|
|
break;
|
|
}
|
|
|
|
target_set = lock_user(VERIFY_READ, arg5,
|
|
sizeof(target_sigset_t), 1);
|
|
if (!target_set) {
|
|
unlock_user(target_ep, arg2, 0);
|
|
goto efault;
|
|
}
|
|
target_to_host_sigset(set, target_set);
|
|
unlock_user(target_set, arg5, 0);
|
|
} else {
|
|
set = NULL;
|
|
}
|
|
|
|
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
|
|
set, SIGSET_T_SIZE));
|
|
break;
|
|
}
|
|
#endif
|
|
#if defined(TARGET_NR_epoll_wait)
|
|
case TARGET_NR_epoll_wait:
|
|
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
|
|
NULL, 0));
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = -TARGET_ENOSYS;
|
|
}
|
|
if (!is_error(ret)) {
|
|
int i;
|
|
for (i = 0; i < ret; i++) {
|
|
target_ep[i].events = tswap32(ep[i].events);
|
|
target_ep[i].data.u64 = tswap64(ep[i].data.u64);
|
|
}
|
|
}
|
|
unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
|
|
break;
|
|
}
|
|
#endif
|
|
#endif
|
|
#ifdef TARGET_NR_prlimit64
|
|
case TARGET_NR_prlimit64:
|
|
{
|
|
/* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
|
|
struct target_rlimit64 *target_rnew, *target_rold;
|
|
struct host_rlimit64 rnew, rold, *rnewp = 0;
|
|
int resource = target_to_host_resource(arg2);
|
|
if (arg3) {
|
|
if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
|
|
goto efault;
|
|
}
|
|
rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
|
|
rnew.rlim_max = tswap64(target_rnew->rlim_max);
|
|
unlock_user_struct(target_rnew, arg3, 0);
|
|
rnewp = &rnew;
|
|
}
|
|
|
|
ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
|
|
if (!is_error(ret) && arg4) {
|
|
if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
|
|
goto efault;
|
|
}
|
|
target_rold->rlim_cur = tswap64(rold.rlim_cur);
|
|
target_rold->rlim_max = tswap64(rold.rlim_max);
|
|
unlock_user_struct(target_rold, arg4, 1);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_gethostname
|
|
case TARGET_NR_gethostname:
|
|
{
|
|
char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
|
|
if (name) {
|
|
ret = get_errno(gethostname(name, arg2));
|
|
unlock_user(name, arg1, arg2);
|
|
} else {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_atomic_cmpxchg_32
|
|
case TARGET_NR_atomic_cmpxchg_32:
|
|
{
|
|
/* should use start_exclusive from main.c */
|
|
abi_ulong mem_value;
|
|
if (get_user_u32(mem_value, arg6)) {
|
|
target_siginfo_t info;
|
|
info.si_signo = SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = arg6;
|
|
queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
|
|
ret = 0xdeadbeef;
|
|
|
|
}
|
|
if (mem_value == arg2)
|
|
put_user_u32(arg1, arg6);
|
|
ret = mem_value;
|
|
break;
|
|
}
|
|
#endif
|
|
#ifdef TARGET_NR_atomic_barrier
|
|
case TARGET_NR_atomic_barrier:
|
|
{
|
|
/* Like the kernel implementation and the qemu arm barrier, no-op this? */
|
|
ret = 0;
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_create
|
|
case TARGET_NR_timer_create:
|
|
{
|
|
/* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
|
|
|
|
struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
|
|
|
|
int clkid = arg1;
|
|
int timer_index = next_free_host_timer();
|
|
|
|
if (timer_index < 0) {
|
|
ret = -TARGET_EAGAIN;
|
|
} else {
|
|
timer_t *phtimer = g_posix_timers + timer_index;
|
|
|
|
if (arg2) {
|
|
phost_sevp = &host_sevp;
|
|
ret = target_to_host_sigevent(phost_sevp, arg2);
|
|
if (ret != 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
|
|
if (ret) {
|
|
phtimer = NULL;
|
|
} else {
|
|
if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_settime
|
|
case TARGET_NR_timer_settime:
|
|
{
|
|
/* args: timer_t timerid, int flags, const struct itimerspec *new_value,
|
|
* struct itimerspec * old_value */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (arg3 == 0) {
|
|
ret = -TARGET_EINVAL;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
|
|
|
|
target_to_host_itimerspec(&hspec_new, arg3);
|
|
ret = get_errno(
|
|
timer_settime(htimer, arg2, &hspec_new, &hspec_old));
|
|
host_to_target_itimerspec(arg2, &hspec_old);
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_gettime
|
|
case TARGET_NR_timer_gettime:
|
|
{
|
|
/* args: timer_t timerid, struct itimerspec *curr_value */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else if (!arg2) {
|
|
ret = -TARGET_EFAULT;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
struct itimerspec hspec;
|
|
ret = get_errno(timer_gettime(htimer, &hspec));
|
|
|
|
if (host_to_target_itimerspec(arg2, &hspec)) {
|
|
ret = -TARGET_EFAULT;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_getoverrun
|
|
case TARGET_NR_timer_getoverrun:
|
|
{
|
|
/* args: timer_t timerid */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
ret = get_errno(timer_getoverrun(htimer));
|
|
}
|
|
fd_trans_unregister(ret);
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#ifdef TARGET_NR_timer_delete
|
|
case TARGET_NR_timer_delete:
|
|
{
|
|
/* args: timer_t timerid */
|
|
target_timer_t timerid = get_timer_id(arg1);
|
|
|
|
if (timerid < 0) {
|
|
ret = timerid;
|
|
} else {
|
|
timer_t htimer = g_posix_timers[timerid];
|
|
ret = get_errno(timer_delete(htimer));
|
|
g_posix_timers[timerid] = 0;
|
|
}
|
|
break;
|
|
}
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_create:
|
|
ret = get_errno(timerfd_create(arg1,
|
|
target_to_host_bitmask(arg2, fcntl_flags_tbl)));
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_gettime:
|
|
{
|
|
struct itimerspec its_curr;
|
|
|
|
ret = get_errno(timerfd_gettime(arg1, &its_curr));
|
|
|
|
if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
|
|
case TARGET_NR_timerfd_settime:
|
|
{
|
|
struct itimerspec its_new, its_old, *p_new;
|
|
|
|
if (arg3) {
|
|
if (target_to_host_itimerspec(&its_new, arg3)) {
|
|
goto efault;
|
|
}
|
|
p_new = &its_new;
|
|
} else {
|
|
p_new = NULL;
|
|
}
|
|
|
|
ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
|
|
|
|
if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
|
|
goto efault;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
|
|
case TARGET_NR_ioprio_get:
|
|
ret = get_errno(ioprio_get(arg1, arg2));
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
|
|
case TARGET_NR_ioprio_set:
|
|
ret = get_errno(ioprio_set(arg1, arg2, arg3));
|
|
break;
|
|
#endif
|
|
|
|
#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
|
|
case TARGET_NR_setns:
|
|
ret = get_errno(setns(arg1, arg2));
|
|
break;
|
|
#endif
|
|
#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
|
|
case TARGET_NR_unshare:
|
|
ret = get_errno(unshare(arg1));
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
unimplemented:
|
|
gemu_log("qemu: Unsupported syscall: %d\n", num);
|
|
#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
|
|
unimplemented_nowarn:
|
|
#endif
|
|
ret = -TARGET_ENOSYS;
|
|
break;
|
|
}
|
|
fail:
|
|
#ifdef DEBUG
|
|
gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
|
|
#endif
|
|
if(do_strace)
|
|
print_syscall_ret(num, ret);
|
|
trace_guest_user_syscall_ret(cpu, num, ret);
|
|
return ret;
|
|
efault:
|
|
ret = -TARGET_EFAULT;
|
|
goto fail;
|
|
}
|