Under SELinux, Unix domain sockets have two labels. One is on the disk and can be set with commands such as chcon(1). There is a different label stored in memory (called the process label). This can only be set by the process creating the socket. When using SELinux + SVirt and wanting qemu to be able to connect to a qemu-nbd instance, you must set both labels correctly first. For qemu-nbd the options to set the second label are awkward. You can create the socket in a wrapper program and then exec into qemu-nbd. Or you could try something with LD_PRELOAD. This commit adds the ability to set the label straightforwardly on the command line, via the new --selinux-label flag. (The name of the flag is the same as the equivalent nbdkit option.) A worked example showing how to use the new option can be found in this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1984938 Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1984938 Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [eblake: rebase to configure changes, reject --selinux-label if it is not compiled in or not used on a Unix socket] Note that we may relax some of these restrictions at a later date, such as making it possible to label a TCP socket, although it may be smarter to do so as a generic QMP action rather than more one-off command lines in qemu-nbd. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20211115202944.615966-1-eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [eblake: adjust meson output as suggested by thuth] Signed-off-by: Eric Blake <eblake@redhat.com>
276 lines
15 KiB
Bash
276 lines
15 KiB
Bash
# This file is generated by meson-buildoptions.py, do not edit!
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meson_options_help() {
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printf "%s\n" ' --enable-capstone[=CHOICE]'
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printf "%s\n" ' Whether and how to find the capstone library'
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printf "%s\n" ' (choices: auto/disabled/enabled/internal/system)'
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printf "%s\n" ' --enable-cfi Control-Flow Integrity (CFI)'
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printf "%s\n" ' --enable-cfi-debug Verbose errors in case of CFI violation'
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printf "%s\n" ' --enable-fdt[=CHOICE] Whether and how to find the libfdt library'
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printf "%s\n" ' (choices: auto/disabled/enabled/internal/system)'
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printf "%s\n" ' --enable-fuzzing build fuzzing targets'
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printf "%s\n" ' --disable-install-blobs install provided firmware blobs'
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printf "%s\n" ' --enable-malloc=CHOICE choose memory allocator to use [system] (choices:'
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printf "%s\n" ' jemalloc/system/tcmalloc)'
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printf "%s\n" ' --enable-slirp[=CHOICE] Whether and how to find the slirp library'
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printf "%s\n" ' (choices: auto/disabled/enabled/internal/system)'
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printf "%s\n" ' --enable-tcg-interpreter TCG with bytecode interpreter (slow)'
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printf "%s\n" ' --enable-trace-backends=CHOICE'
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printf "%s\n" ' Set available tracing backends [log] (choices:'
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printf "%s\n" ' dtrace/ftrace/log/nop/simple/syslog/ust)'
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printf "%s\n" ''
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printf "%s\n" 'Optional features, enabled with --enable-FEATURE and'
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printf "%s\n" 'disabled with --disable-FEATURE, default is enabled if available'
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printf "%s\n" '(unless built with --without-default-features):'
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printf "%s\n" ''
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printf "%s\n" ' alsa ALSA sound support'
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printf "%s\n" ' attr attr/xattr support'
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printf "%s\n" ' auth-pam PAM access control'
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printf "%s\n" ' bpf eBPF support'
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printf "%s\n" ' brlapi brlapi character device driver'
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printf "%s\n" ' bzip2 bzip2 support for DMG images'
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printf "%s\n" ' cap-ng cap_ng support'
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printf "%s\n" ' cocoa Cocoa user interface (macOS only)'
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printf "%s\n" ' coreaudio CoreAudio sound support'
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printf "%s\n" ' curl CURL block device driver'
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printf "%s\n" ' curses curses UI'
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printf "%s\n" ' docs Documentations build support'
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printf "%s\n" ' dsound DirectSound sound support'
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printf "%s\n" ' fuse FUSE block device export'
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printf "%s\n" ' fuse-lseek SEEK_HOLE/SEEK_DATA support for FUSE exports'
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printf "%s\n" ' gcrypt libgcrypt cryptography support'
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printf "%s\n" ' gettext Localization of the GTK+ user interface'
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printf "%s\n" ' glusterfs Glusterfs block device driver'
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printf "%s\n" ' gnutls GNUTLS cryptography support'
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printf "%s\n" ' gtk GTK+ user interface'
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printf "%s\n" ' guest-agent-msi Build MSI package for the QEMU Guest Agent'
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printf "%s\n" ' hax HAX acceleration support'
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printf "%s\n" ' hvf HVF acceleration support'
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printf "%s\n" ' iconv Font glyph conversion support'
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printf "%s\n" ' jack JACK sound support'
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printf "%s\n" ' kvm KVM acceleration support'
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printf "%s\n" ' l2tpv3 l2tpv3 network backend support'
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printf "%s\n" ' libdaxctl libdaxctl support'
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printf "%s\n" ' libiscsi libiscsi userspace initiator'
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printf "%s\n" ' libnfs libnfs block device driver'
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printf "%s\n" ' libpmem libpmem support'
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printf "%s\n" ' libudev Use libudev to enumerate host devices'
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printf "%s\n" ' libusb libusb support for USB passthrough'
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printf "%s\n" ' libxml2 libxml2 support for Parallels image format'
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printf "%s\n" ' linux-aio Linux AIO support'
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printf "%s\n" ' linux-io-uring Linux io_uring support'
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printf "%s\n" ' lzfse lzfse support for DMG images'
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printf "%s\n" ' lzo lzo compression support'
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printf "%s\n" ' malloc-trim enable libc malloc_trim() for memory optimization'
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printf "%s\n" ' mpath Multipath persistent reservation passthrough'
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printf "%s\n" ' multiprocess Out of process device emulation support'
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printf "%s\n" ' netmap netmap network backend support'
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printf "%s\n" ' nettle nettle cryptography support'
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printf "%s\n" ' nvmm NVMM acceleration support'
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printf "%s\n" ' oss OSS sound support'
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printf "%s\n" ' pa PulseAudio sound support'
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printf "%s\n" ' rbd Ceph block device driver'
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printf "%s\n" ' sdl SDL user interface'
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printf "%s\n" ' sdl-image SDL Image support for icons'
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printf "%s\n" ' seccomp seccomp support'
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printf "%s\n" ' selinux SELinux support in qemu-nbd'
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printf "%s\n" ' smartcard CA smartcard emulation support'
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printf "%s\n" ' snappy snappy compression support'
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printf "%s\n" ' sparse sparse checker'
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printf "%s\n" ' spice Spice server support'
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printf "%s\n" ' spice-protocol Spice protocol support'
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printf "%s\n" ' tcg TCG support'
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printf "%s\n" ' u2f U2F emulation support'
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printf "%s\n" ' usb-redir libusbredir support'
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printf "%s\n" ' vde vde network backend support'
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printf "%s\n" ' vhost-user-blk-server'
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printf "%s\n" ' build vhost-user-blk server'
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printf "%s\n" ' virglrenderer virgl rendering support'
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printf "%s\n" ' virtfs virtio-9p support'
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printf "%s\n" ' virtiofsd build virtiofs daemon (virtiofsd)'
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printf "%s\n" ' vnc VNC server'
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printf "%s\n" ' vnc-jpeg JPEG lossy compression for VNC server'
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printf "%s\n" ' vnc-png PNG compression for VNC server'
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printf "%s\n" ' vnc-sasl SASL authentication for VNC server'
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printf "%s\n" ' vte vte support for the gtk UI'
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printf "%s\n" ' whpx WHPX acceleration support'
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printf "%s\n" ' xen Xen backend support'
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printf "%s\n" ' xen-pci-passthrough'
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printf "%s\n" ' Xen PCI passthrough support'
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printf "%s\n" ' xkbcommon xkbcommon support'
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printf "%s\n" ' zstd zstd compression support'
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}
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_meson_option_parse() {
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case $1 in
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--enable-alsa) printf "%s" -Dalsa=enabled ;;
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--disable-alsa) printf "%s" -Dalsa=disabled ;;
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--enable-attr) printf "%s" -Dattr=enabled ;;
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--disable-attr) printf "%s" -Dattr=disabled ;;
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--enable-auth-pam) printf "%s" -Dauth_pam=enabled ;;
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--disable-auth-pam) printf "%s" -Dauth_pam=disabled ;;
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--enable-bpf) printf "%s" -Dbpf=enabled ;;
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--disable-bpf) printf "%s" -Dbpf=disabled ;;
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--enable-brlapi) printf "%s" -Dbrlapi=enabled ;;
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--disable-brlapi) printf "%s" -Dbrlapi=disabled ;;
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--enable-bzip2) printf "%s" -Dbzip2=enabled ;;
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--disable-bzip2) printf "%s" -Dbzip2=disabled ;;
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--enable-cap-ng) printf "%s" -Dcap_ng=enabled ;;
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--disable-cap-ng) printf "%s" -Dcap_ng=disabled ;;
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--enable-capstone) printf "%s" -Dcapstone=enabled ;;
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--disable-capstone) printf "%s" -Dcapstone=disabled ;;
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--enable-capstone=*) quote_sh "-Dcapstone=$2" ;;
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--enable-cfi) printf "%s" -Dcfi=true ;;
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--disable-cfi) printf "%s" -Dcfi=false ;;
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--enable-cfi-debug) printf "%s" -Dcfi_debug=true ;;
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--disable-cfi-debug) printf "%s" -Dcfi_debug=false ;;
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--enable-cocoa) printf "%s" -Dcocoa=enabled ;;
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--disable-cocoa) printf "%s" -Dcocoa=disabled ;;
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--enable-coreaudio) printf "%s" -Dcoreaudio=enabled ;;
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--disable-coreaudio) printf "%s" -Dcoreaudio=disabled ;;
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--enable-curl) printf "%s" -Dcurl=enabled ;;
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--disable-curl) printf "%s" -Dcurl=disabled ;;
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--enable-curses) printf "%s" -Dcurses=enabled ;;
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--disable-curses) printf "%s" -Dcurses=disabled ;;
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--enable-docs) printf "%s" -Ddocs=enabled ;;
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--disable-docs) printf "%s" -Ddocs=disabled ;;
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--enable-dsound) printf "%s" -Ddsound=enabled ;;
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--disable-dsound) printf "%s" -Ddsound=disabled ;;
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--enable-fdt) printf "%s" -Dfdt=enabled ;;
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--disable-fdt) printf "%s" -Dfdt=disabled ;;
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--enable-fdt=*) quote_sh "-Dfdt=$2" ;;
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--enable-fuse) printf "%s" -Dfuse=enabled ;;
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--disable-fuse) printf "%s" -Dfuse=disabled ;;
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--enable-fuse-lseek) printf "%s" -Dfuse_lseek=enabled ;;
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--disable-fuse-lseek) printf "%s" -Dfuse_lseek=disabled ;;
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--enable-fuzzing) printf "%s" -Dfuzzing=true ;;
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--disable-fuzzing) printf "%s" -Dfuzzing=false ;;
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--enable-gcrypt) printf "%s" -Dgcrypt=enabled ;;
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--disable-gcrypt) printf "%s" -Dgcrypt=disabled ;;
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--enable-gettext) printf "%s" -Dgettext=enabled ;;
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--disable-gettext) printf "%s" -Dgettext=disabled ;;
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--enable-glusterfs) printf "%s" -Dglusterfs=enabled ;;
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--disable-glusterfs) printf "%s" -Dglusterfs=disabled ;;
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--enable-gnutls) printf "%s" -Dgnutls=enabled ;;
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--disable-gnutls) printf "%s" -Dgnutls=disabled ;;
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--enable-gtk) printf "%s" -Dgtk=enabled ;;
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--disable-gtk) printf "%s" -Dgtk=disabled ;;
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--enable-guest-agent-msi) printf "%s" -Dguest_agent_msi=enabled ;;
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--disable-guest-agent-msi) printf "%s" -Dguest_agent_msi=disabled ;;
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--enable-hax) printf "%s" -Dhax=enabled ;;
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--disable-hax) printf "%s" -Dhax=disabled ;;
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--enable-hvf) printf "%s" -Dhvf=enabled ;;
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--disable-hvf) printf "%s" -Dhvf=disabled ;;
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--enable-iconv) printf "%s" -Diconv=enabled ;;
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--disable-iconv) printf "%s" -Diconv=disabled ;;
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--enable-install-blobs) printf "%s" -Dinstall_blobs=true ;;
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--disable-install-blobs) printf "%s" -Dinstall_blobs=false ;;
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--enable-jack) printf "%s" -Djack=enabled ;;
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--disable-jack) printf "%s" -Djack=disabled ;;
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--enable-kvm) printf "%s" -Dkvm=enabled ;;
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--disable-kvm) printf "%s" -Dkvm=disabled ;;
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--enable-l2tpv3) printf "%s" -Dl2tpv3=enabled ;;
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--disable-l2tpv3) printf "%s" -Dl2tpv3=disabled ;;
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--enable-libdaxctl) printf "%s" -Dlibdaxctl=enabled ;;
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--disable-libdaxctl) printf "%s" -Dlibdaxctl=disabled ;;
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--enable-libiscsi) printf "%s" -Dlibiscsi=enabled ;;
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--disable-libiscsi) printf "%s" -Dlibiscsi=disabled ;;
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--enable-libnfs) printf "%s" -Dlibnfs=enabled ;;
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--disable-libnfs) printf "%s" -Dlibnfs=disabled ;;
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--enable-libpmem) printf "%s" -Dlibpmem=enabled ;;
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--disable-libpmem) printf "%s" -Dlibpmem=disabled ;;
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--enable-libudev) printf "%s" -Dlibudev=enabled ;;
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--disable-libudev) printf "%s" -Dlibudev=disabled ;;
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--enable-libusb) printf "%s" -Dlibusb=enabled ;;
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--disable-libusb) printf "%s" -Dlibusb=disabled ;;
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--enable-libxml2) printf "%s" -Dlibxml2=enabled ;;
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--disable-libxml2) printf "%s" -Dlibxml2=disabled ;;
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--enable-linux-aio) printf "%s" -Dlinux_aio=enabled ;;
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--disable-linux-aio) printf "%s" -Dlinux_aio=disabled ;;
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--enable-linux-io-uring) printf "%s" -Dlinux_io_uring=enabled ;;
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--disable-linux-io-uring) printf "%s" -Dlinux_io_uring=disabled ;;
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--enable-lzfse) printf "%s" -Dlzfse=enabled ;;
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--disable-lzfse) printf "%s" -Dlzfse=disabled ;;
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--enable-lzo) printf "%s" -Dlzo=enabled ;;
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--disable-lzo) printf "%s" -Dlzo=disabled ;;
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--enable-malloc=*) quote_sh "-Dmalloc=$2" ;;
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--enable-malloc-trim) printf "%s" -Dmalloc_trim=enabled ;;
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--disable-malloc-trim) printf "%s" -Dmalloc_trim=disabled ;;
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--enable-mpath) printf "%s" -Dmpath=enabled ;;
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--disable-mpath) printf "%s" -Dmpath=disabled ;;
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--enable-multiprocess) printf "%s" -Dmultiprocess=enabled ;;
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--disable-multiprocess) printf "%s" -Dmultiprocess=disabled ;;
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--enable-netmap) printf "%s" -Dnetmap=enabled ;;
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--disable-netmap) printf "%s" -Dnetmap=disabled ;;
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--enable-nettle) printf "%s" -Dnettle=enabled ;;
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--disable-nettle) printf "%s" -Dnettle=disabled ;;
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--enable-nvmm) printf "%s" -Dnvmm=enabled ;;
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--disable-nvmm) printf "%s" -Dnvmm=disabled ;;
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--enable-oss) printf "%s" -Doss=enabled ;;
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--disable-oss) printf "%s" -Doss=disabled ;;
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--enable-pa) printf "%s" -Dpa=enabled ;;
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--disable-pa) printf "%s" -Dpa=disabled ;;
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--enable-rbd) printf "%s" -Drbd=enabled ;;
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--disable-rbd) printf "%s" -Drbd=disabled ;;
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--enable-sdl) printf "%s" -Dsdl=enabled ;;
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--disable-sdl) printf "%s" -Dsdl=disabled ;;
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--enable-sdl-image) printf "%s" -Dsdl_image=enabled ;;
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--disable-sdl-image) printf "%s" -Dsdl_image=disabled ;;
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--enable-seccomp) printf "%s" -Dseccomp=enabled ;;
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--disable-seccomp) printf "%s" -Dseccomp=disabled ;;
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--enable-selinux) printf "%s" -Dselinux=enabled ;;
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--disable-selinux) printf "%s" -Dselinux=disabled ;;
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--enable-slirp) printf "%s" -Dslirp=enabled ;;
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--disable-slirp) printf "%s" -Dslirp=disabled ;;
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--enable-slirp=*) quote_sh "-Dslirp=$2" ;;
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--enable-smartcard) printf "%s" -Dsmartcard=enabled ;;
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--disable-smartcard) printf "%s" -Dsmartcard=disabled ;;
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--enable-snappy) printf "%s" -Dsnappy=enabled ;;
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--disable-snappy) printf "%s" -Dsnappy=disabled ;;
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--enable-sparse) printf "%s" -Dsparse=enabled ;;
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--disable-sparse) printf "%s" -Dsparse=disabled ;;
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--enable-spice) printf "%s" -Dspice=enabled ;;
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--disable-spice) printf "%s" -Dspice=disabled ;;
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--enable-spice-protocol) printf "%s" -Dspice_protocol=enabled ;;
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--disable-spice-protocol) printf "%s" -Dspice_protocol=disabled ;;
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--enable-tcg) printf "%s" -Dtcg=enabled ;;
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--disable-tcg) printf "%s" -Dtcg=disabled ;;
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--enable-tcg-interpreter) printf "%s" -Dtcg_interpreter=true ;;
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--disable-tcg-interpreter) printf "%s" -Dtcg_interpreter=false ;;
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--enable-trace-backends=*) quote_sh "-Dtrace_backends=$2" ;;
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--enable-u2f) printf "%s" -Du2f=enabled ;;
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--disable-u2f) printf "%s" -Du2f=disabled ;;
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--enable-usb-redir) printf "%s" -Dusb_redir=enabled ;;
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--disable-usb-redir) printf "%s" -Dusb_redir=disabled ;;
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--enable-vde) printf "%s" -Dvde=enabled ;;
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--disable-vde) printf "%s" -Dvde=disabled ;;
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--enable-vhost-user-blk-server) printf "%s" -Dvhost_user_blk_server=enabled ;;
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--disable-vhost-user-blk-server) printf "%s" -Dvhost_user_blk_server=disabled ;;
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--enable-virglrenderer) printf "%s" -Dvirglrenderer=enabled ;;
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--disable-virglrenderer) printf "%s" -Dvirglrenderer=disabled ;;
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--enable-virtfs) printf "%s" -Dvirtfs=enabled ;;
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--disable-virtfs) printf "%s" -Dvirtfs=disabled ;;
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--enable-virtiofsd) printf "%s" -Dvirtiofsd=enabled ;;
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--disable-virtiofsd) printf "%s" -Dvirtiofsd=disabled ;;
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--enable-vnc) printf "%s" -Dvnc=enabled ;;
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--disable-vnc) printf "%s" -Dvnc=disabled ;;
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--enable-vnc-jpeg) printf "%s" -Dvnc_jpeg=enabled ;;
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--disable-vnc-jpeg) printf "%s" -Dvnc_jpeg=disabled ;;
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--enable-vnc-png) printf "%s" -Dvnc_png=enabled ;;
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--disable-vnc-png) printf "%s" -Dvnc_png=disabled ;;
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--enable-vnc-sasl) printf "%s" -Dvnc_sasl=enabled ;;
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--disable-vnc-sasl) printf "%s" -Dvnc_sasl=disabled ;;
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--enable-vte) printf "%s" -Dvte=enabled ;;
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--disable-vte) printf "%s" -Dvte=disabled ;;
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--enable-whpx) printf "%s" -Dwhpx=enabled ;;
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--disable-whpx) printf "%s" -Dwhpx=disabled ;;
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--enable-xen) printf "%s" -Dxen=enabled ;;
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--disable-xen) printf "%s" -Dxen=disabled ;;
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--enable-xen-pci-passthrough) printf "%s" -Dxen_pci_passthrough=enabled ;;
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--disable-xen-pci-passthrough) printf "%s" -Dxen_pci_passthrough=disabled ;;
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--enable-xkbcommon) printf "%s" -Dxkbcommon=enabled ;;
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--disable-xkbcommon) printf "%s" -Dxkbcommon=disabled ;;
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--enable-zstd) printf "%s" -Dzstd=enabled ;;
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--disable-zstd) printf "%s" -Dzstd=disabled ;;
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*) return 1 ;;
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esac
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}
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