2008-10-17 19:31:57 +02:00
|
|
|
/*
|
|
|
|
* libslirp glue
|
|
|
|
*
|
|
|
|
* Copyright (c) 2004-2008 Fabrice Bellard
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
|
|
* in the Software without restriction, including without limitation the rights
|
|
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
|
|
* furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be included in
|
|
|
|
* all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
* THE SOFTWARE.
|
|
|
|
*/
|
2016-01-29 18:49:59 +01:00
|
|
|
#include "qemu/osdep.h"
|
2009-01-08 20:18:21 +01:00
|
|
|
#include "qemu-common.h"
|
2012-12-17 18:20:00 +01:00
|
|
|
#include "qemu/timer.h"
|
2015-12-19 22:24:58 +01:00
|
|
|
#include "qemu/error-report.h"
|
2013-04-08 16:55:25 +02:00
|
|
|
#include "sysemu/char.h"
|
2004-04-22 02:10:48 +02:00
|
|
|
#include "slirp.h"
|
2009-01-08 20:27:07 +01:00
|
|
|
#include "hw/hw.h"
|
2004-04-22 02:10:48 +02:00
|
|
|
|
|
|
|
/* host loopback address */
|
|
|
|
struct in_addr loopback_addr;
|
2012-07-13 22:54:17 +02:00
|
|
|
/* host loopback network mask */
|
2012-08-07 02:31:55 +02:00
|
|
|
unsigned long loopback_mask;
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2009-06-24 14:42:28 +02:00
|
|
|
/* emulated hosts use the MAC addr 52:55:IP:IP:IP:IP */
|
2011-08-03 12:52:54 +02:00
|
|
|
static const uint8_t special_ethaddr[ETH_ALEN] = {
|
2009-06-24 14:42:28 +02:00
|
|
|
0x52, 0x55, 0x00, 0x00, 0x00, 0x00
|
2004-04-22 02:10:48 +02:00
|
|
|
};
|
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
u_int curtime;
|
|
|
|
|
2009-09-12 09:36:22 +02:00
|
|
|
static QTAILQ_HEAD(slirp_instances, Slirp) slirp_instances =
|
|
|
|
QTAILQ_HEAD_INITIALIZER(slirp_instances);
|
2006-04-16 13:06:58 +02:00
|
|
|
|
2009-08-31 16:29:34 +02:00
|
|
|
static struct in_addr dns_addr;
|
|
|
|
static u_int dns_addr_time;
|
2009-08-21 04:00:31 +02:00
|
|
|
|
2013-08-25 04:01:20 +02:00
|
|
|
#define TIMEOUT_FAST 2 /* milliseconds */
|
|
|
|
#define TIMEOUT_SLOW 499 /* milliseconds */
|
|
|
|
/* for the aging of certain requests like DNS */
|
|
|
|
#define TIMEOUT_DEFAULT 1000 /* milliseconds */
|
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
#ifdef _WIN32
|
|
|
|
|
2009-08-21 04:00:31 +02:00
|
|
|
int get_dns_addr(struct in_addr *pdns_addr)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
2004-07-13 00:33:07 +02:00
|
|
|
FIXED_INFO *FixedInfo=NULL;
|
|
|
|
ULONG BufLen;
|
|
|
|
DWORD ret;
|
|
|
|
IP_ADDR_STRING *pIPAddr;
|
|
|
|
struct in_addr tmp_addr;
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2013-08-25 04:01:20 +02:00
|
|
|
if (dns_addr.s_addr != 0 && (curtime - dns_addr_time) < TIMEOUT_DEFAULT) {
|
2009-08-21 04:00:31 +02:00
|
|
|
*pdns_addr = dns_addr;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2004-07-13 00:33:07 +02:00
|
|
|
FixedInfo = (FIXED_INFO *)GlobalAlloc(GPTR, sizeof(FIXED_INFO));
|
|
|
|
BufLen = sizeof(FIXED_INFO);
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2004-07-13 00:33:07 +02:00
|
|
|
if (ERROR_BUFFER_OVERFLOW == GetNetworkParams(FixedInfo, &BufLen)) {
|
|
|
|
if (FixedInfo) {
|
|
|
|
GlobalFree(FixedInfo);
|
|
|
|
FixedInfo = NULL;
|
|
|
|
}
|
|
|
|
FixedInfo = GlobalAlloc(GPTR, BufLen);
|
|
|
|
}
|
2007-09-16 23:08:06 +02:00
|
|
|
|
2004-07-13 00:33:07 +02:00
|
|
|
if ((ret = GetNetworkParams(FixedInfo, &BufLen)) != ERROR_SUCCESS) {
|
|
|
|
printf("GetNetworkParams failed. ret = %08x\n", (u_int)ret );
|
|
|
|
if (FixedInfo) {
|
|
|
|
GlobalFree(FixedInfo);
|
|
|
|
FixedInfo = NULL;
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2004-07-13 00:33:07 +02:00
|
|
|
pIPAddr = &(FixedInfo->DnsServerList);
|
|
|
|
inet_aton(pIPAddr->IpAddress.String, &tmp_addr);
|
|
|
|
*pdns_addr = tmp_addr;
|
2009-08-21 04:00:31 +02:00
|
|
|
dns_addr = tmp_addr;
|
|
|
|
dns_addr_time = curtime;
|
2004-07-13 00:33:07 +02:00
|
|
|
if (FixedInfo) {
|
|
|
|
GlobalFree(FixedInfo);
|
|
|
|
FixedInfo = NULL;
|
|
|
|
}
|
|
|
|
return 0;
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
static void winsock_cleanup(void)
|
|
|
|
{
|
|
|
|
WSACleanup();
|
|
|
|
}
|
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
#else
|
|
|
|
|
2009-09-05 12:14:07 +02:00
|
|
|
static struct stat dns_addr_stat;
|
2009-08-21 04:00:31 +02:00
|
|
|
|
|
|
|
int get_dns_addr(struct in_addr *pdns_addr)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
|
|
|
char buff[512];
|
2008-08-21 19:58:08 +02:00
|
|
|
char buff2[257];
|
2004-04-22 02:10:48 +02:00
|
|
|
FILE *f;
|
|
|
|
int found = 0;
|
|
|
|
struct in_addr tmp_addr;
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2009-08-21 04:00:31 +02:00
|
|
|
if (dns_addr.s_addr != 0) {
|
|
|
|
struct stat old_stat;
|
2013-08-25 04:01:20 +02:00
|
|
|
if ((curtime - dns_addr_time) < TIMEOUT_DEFAULT) {
|
2009-08-21 04:00:31 +02:00
|
|
|
*pdns_addr = dns_addr;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
old_stat = dns_addr_stat;
|
|
|
|
if (stat("/etc/resolv.conf", &dns_addr_stat) != 0)
|
|
|
|
return -1;
|
|
|
|
if ((dns_addr_stat.st_dev == old_stat.st_dev)
|
|
|
|
&& (dns_addr_stat.st_ino == old_stat.st_ino)
|
|
|
|
&& (dns_addr_stat.st_size == old_stat.st_size)
|
|
|
|
&& (dns_addr_stat.st_mtime == old_stat.st_mtime)) {
|
|
|
|
*pdns_addr = dns_addr;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
f = fopen("/etc/resolv.conf", "r");
|
|
|
|
if (!f)
|
|
|
|
return -1;
|
|
|
|
|
2007-10-26 20:42:59 +02:00
|
|
|
#ifdef DEBUG
|
2014-03-22 00:42:20 +01:00
|
|
|
fprintf(stderr, "IP address of your DNS(s): ");
|
2007-10-26 20:42:59 +02:00
|
|
|
#endif
|
2004-04-22 02:10:48 +02:00
|
|
|
while (fgets(buff, 512, f) != NULL) {
|
|
|
|
if (sscanf(buff, "nameserver%*[ \t]%256s", buff2) == 1) {
|
|
|
|
if (!inet_aton(buff2, &tmp_addr))
|
|
|
|
continue;
|
|
|
|
/* If it's the first one, set it to dns_addr */
|
2009-08-21 04:00:31 +02:00
|
|
|
if (!found) {
|
2004-04-22 02:10:48 +02:00
|
|
|
*pdns_addr = tmp_addr;
|
2009-08-21 04:00:31 +02:00
|
|
|
dns_addr = tmp_addr;
|
|
|
|
dns_addr_time = curtime;
|
|
|
|
}
|
2007-10-26 20:42:59 +02:00
|
|
|
#ifdef DEBUG
|
2004-04-22 02:10:48 +02:00
|
|
|
else
|
2014-03-22 00:42:20 +01:00
|
|
|
fprintf(stderr, ", ");
|
2007-10-26 20:42:59 +02:00
|
|
|
#endif
|
2004-04-22 02:10:48 +02:00
|
|
|
if (++found > 3) {
|
2007-10-26 20:42:59 +02:00
|
|
|
#ifdef DEBUG
|
2014-03-22 00:42:20 +01:00
|
|
|
fprintf(stderr, "(more)");
|
2007-10-26 20:42:59 +02:00
|
|
|
#endif
|
2004-04-22 02:10:48 +02:00
|
|
|
break;
|
2007-10-26 20:42:59 +02:00
|
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
else
|
2014-03-22 00:42:20 +01:00
|
|
|
fprintf(stderr, "%s", inet_ntoa(tmp_addr));
|
2007-10-26 20:42:59 +02:00
|
|
|
#endif
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
|
|
|
}
|
2004-07-05 23:18:42 +02:00
|
|
|
fclose(f);
|
2004-04-22 02:10:48 +02:00
|
|
|
if (!found)
|
|
|
|
return -1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
static void slirp_init_once(void)
|
2004-07-13 00:33:07 +02:00
|
|
|
{
|
2009-06-24 14:42:30 +02:00
|
|
|
static int initialized;
|
|
|
|
#ifdef _WIN32
|
|
|
|
WSADATA Data;
|
2004-07-13 00:33:07 +02:00
|
|
|
#endif
|
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
if (initialized) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
initialized = 1;
|
|
|
|
|
|
|
|
#ifdef _WIN32
|
|
|
|
WSAStartup(MAKEWORD(2,0), &Data);
|
|
|
|
atexit(winsock_cleanup);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
loopback_addr.s_addr = htonl(INADDR_LOOPBACK);
|
2012-07-13 22:54:17 +02:00
|
|
|
loopback_mask = htonl(IN_CLASSA_NET);
|
2009-06-24 14:42:30 +02:00
|
|
|
}
|
|
|
|
|
2009-01-08 20:27:07 +01:00
|
|
|
static void slirp_state_save(QEMUFile *f, void *opaque);
|
|
|
|
static int slirp_state_load(QEMUFile *f, void *opaque, int version_id);
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
Slirp *slirp_init(int restricted, struct in_addr vnetwork,
|
|
|
|
struct in_addr vnetmask, struct in_addr vhost,
|
|
|
|
const char *vhostname, const char *tftp_path,
|
|
|
|
const char *bootfile, struct in_addr vdhcp_start,
|
2012-10-27 19:53:39 +02:00
|
|
|
struct in_addr vnameserver, const char **vdnssearch,
|
|
|
|
void *opaque)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
2011-08-21 05:09:37 +02:00
|
|
|
Slirp *slirp = g_malloc0(sizeof(Slirp));
|
2009-06-24 14:42:31 +02:00
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
slirp_init_once();
|
2004-07-13 00:33:07 +02:00
|
|
|
|
2016-03-15 10:31:19 +01:00
|
|
|
slirp->grand = g_rand_new();
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->restricted = restricted;
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
if_init(slirp);
|
|
|
|
ip_init(slirp);
|
2016-03-15 10:31:19 +01:00
|
|
|
ip6_init(slirp);
|
2004-04-22 02:10:48 +02:00
|
|
|
|
|
|
|
/* Initialise mbufs *after* setting the MTU */
|
2009-06-24 14:42:31 +02:00
|
|
|
m_init(slirp);
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->vnetwork_addr = vnetwork;
|
|
|
|
slirp->vnetwork_mask = vnetmask;
|
|
|
|
slirp->vhost_addr = vhost;
|
2016-03-15 10:31:19 +01:00
|
|
|
#if defined(_WIN32) && (_WIN32_WINNT < 0x0600)
|
|
|
|
/* No inet_pton helper... */
|
|
|
|
memset(&slirp->vprefix_addr6, 0, sizeof(slirp->vprefix_addr6));
|
|
|
|
slirp->vprefix_addr6.s6_addr[0] = 0xfe;
|
|
|
|
slirp->vprefix_addr6.s6_addr[1] = 0xc0;
|
|
|
|
slirp->vprefix_len = 64;
|
|
|
|
slirp->vhost_addr6 = slirp->vprefix_addr6;
|
|
|
|
slirp->vhost_addr6.s6_addr[15] = 0x2;
|
|
|
|
#else
|
|
|
|
inet_pton(AF_INET6, "fec0::0", &slirp->vprefix_addr6);
|
|
|
|
slirp->vprefix_len = 64;
|
|
|
|
inet_pton(AF_INET6, "fec0::2", &slirp->vhost_addr6);
|
|
|
|
#endif
|
2009-06-24 14:42:28 +02:00
|
|
|
if (vhostname) {
|
2009-06-24 14:42:31 +02:00
|
|
|
pstrcpy(slirp->client_hostname, sizeof(slirp->client_hostname),
|
|
|
|
vhostname);
|
2009-06-24 14:42:28 +02:00
|
|
|
}
|
2013-01-22 11:07:57 +01:00
|
|
|
slirp->tftp_prefix = g_strdup(tftp_path);
|
|
|
|
slirp->bootp_filename = g_strdup(bootfile);
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->vdhcp_startaddr = vdhcp_start;
|
|
|
|
slirp->vnameserver_addr = vnameserver;
|
2009-06-24 14:42:28 +02:00
|
|
|
|
2012-10-27 19:53:39 +02:00
|
|
|
if (vdnssearch) {
|
|
|
|
translate_dnssearch(slirp, vdnssearch);
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->opaque = opaque;
|
|
|
|
|
2015-12-19 22:24:58 +01:00
|
|
|
register_savevm(NULL, "slirp", 0, 4,
|
2010-06-25 19:09:07 +02:00
|
|
|
slirp_state_save, slirp_state_load, slirp);
|
2009-06-24 14:42:31 +02:00
|
|
|
|
2009-09-12 09:36:22 +02:00
|
|
|
QTAILQ_INSERT_TAIL(&slirp_instances, slirp, entry);
|
2009-06-24 14:42:31 +02:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
return slirp;
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
void slirp_cleanup(Slirp *slirp)
|
|
|
|
{
|
2009-09-12 09:36:22 +02:00
|
|
|
QTAILQ_REMOVE(&slirp_instances, slirp, entry);
|
2009-06-24 14:42:31 +02:00
|
|
|
|
2010-06-25 19:09:07 +02:00
|
|
|
unregister_savevm(NULL, "slirp", slirp);
|
2009-06-24 14:42:31 +02:00
|
|
|
|
2012-02-29 19:14:23 +01:00
|
|
|
ip_cleanup(slirp);
|
2016-03-15 10:31:19 +01:00
|
|
|
ip6_cleanup(slirp);
|
2012-02-29 19:14:23 +01:00
|
|
|
m_cleanup(slirp);
|
|
|
|
|
2016-03-15 10:31:19 +01:00
|
|
|
g_rand_free(slirp->grand);
|
|
|
|
|
2012-10-27 19:53:39 +02:00
|
|
|
g_free(slirp->vdnssearch);
|
2011-08-21 05:09:37 +02:00
|
|
|
g_free(slirp->tftp_prefix);
|
|
|
|
g_free(slirp->bootp_filename);
|
|
|
|
g_free(slirp);
|
2009-06-24 14:42:31 +02:00
|
|
|
}
|
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
#define CONN_CANFSEND(so) (((so)->so_state & (SS_FCANTSENDMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
|
|
|
|
#define CONN_CANFRCV(so) (((so)->so_state & (SS_FCANTRCVMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
|
|
|
|
|
2013-08-25 04:01:21 +02:00
|
|
|
static void slirp_update_timeout(uint32_t *timeout)
|
2012-04-13 20:35:04 +02:00
|
|
|
{
|
2013-08-25 04:01:21 +02:00
|
|
|
Slirp *slirp;
|
|
|
|
uint32_t t;
|
|
|
|
|
|
|
|
if (*timeout <= TIMEOUT_FAST) {
|
|
|
|
return;
|
|
|
|
}
|
2013-08-28 19:12:15 +02:00
|
|
|
|
|
|
|
t = MIN(1000, *timeout);
|
2013-08-25 04:01:21 +02:00
|
|
|
|
|
|
|
/* If we have tcp timeout with slirp, then we will fill @timeout with
|
|
|
|
* more precise value.
|
|
|
|
*/
|
|
|
|
QTAILQ_FOREACH(slirp, &slirp_instances, entry) {
|
|
|
|
if (slirp->time_fasttimo) {
|
|
|
|
*timeout = TIMEOUT_FAST;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (slirp->do_slowtimo) {
|
|
|
|
t = MIN(TIMEOUT_SLOW, t);
|
|
|
|
}
|
2012-04-13 20:35:04 +02:00
|
|
|
}
|
2013-08-25 04:01:21 +02:00
|
|
|
*timeout = t;
|
2012-04-13 20:35:04 +02:00
|
|
|
}
|
|
|
|
|
2013-08-25 04:01:21 +02:00
|
|
|
void slirp_pollfds_fill(GArray *pollfds, uint32_t *timeout)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
2009-06-24 14:42:31 +02:00
|
|
|
Slirp *slirp;
|
2004-04-22 02:10:48 +02:00
|
|
|
struct socket *so, *so_next;
|
|
|
|
|
2009-09-12 09:36:22 +02:00
|
|
|
if (QTAILQ_EMPTY(&slirp_instances)) {
|
2009-06-24 14:42:30 +02:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* First, TCP sockets
|
|
|
|
*/
|
2011-07-20 12:20:18 +02:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
QTAILQ_FOREACH(slirp, &slirp_instances, entry) {
|
|
|
|
/*
|
|
|
|
* *_slowtimo needs calling if there are IP fragments
|
|
|
|
* in the fragment queue, or there are TCP connections active
|
|
|
|
*/
|
2013-08-25 04:01:19 +02:00
|
|
|
slirp->do_slowtimo = ((slirp->tcb.so_next != &slirp->tcb) ||
|
2013-02-20 11:28:27 +01:00
|
|
|
(&slirp->ipq.ip_link != slirp->ipq.ip_link.next));
|
|
|
|
|
|
|
|
for (so = slirp->tcb.so_next; so != &slirp->tcb;
|
|
|
|
so = so_next) {
|
2013-02-20 11:28:28 +01:00
|
|
|
int events = 0;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
so_next = so->so_next;
|
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
so->pollfds_idx = -1;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* See if we need a tcp_fasttimo
|
|
|
|
*/
|
2013-08-25 04:01:19 +02:00
|
|
|
if (slirp->time_fasttimo == 0 &&
|
|
|
|
so->so_tcpcb->t_flags & TF_DELACK) {
|
|
|
|
slirp->time_fasttimo = curtime; /* Flag when want a fasttimo */
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
2011-07-20 12:20:18 +02:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* NOFDREF can include still connecting to local-host,
|
|
|
|
* newly socreated() sockets etc. Don't want to select these.
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_NOFDREF || so->s == -1) {
|
|
|
|
continue;
|
|
|
|
}
|
2011-07-20 12:20:18 +02:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* Set for reading sockets which are accepting
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_FACCEPTCONN) {
|
2013-02-20 11:28:28 +01:00
|
|
|
GPollFD pfd = {
|
|
|
|
.fd = so->s,
|
|
|
|
.events = G_IO_IN | G_IO_HUP | G_IO_ERR,
|
|
|
|
};
|
|
|
|
so->pollfds_idx = pollfds->len;
|
|
|
|
g_array_append_val(pollfds, pfd);
|
2013-02-20 11:28:27 +01:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set for writing sockets which are connecting
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
2013-02-20 11:28:28 +01:00
|
|
|
GPollFD pfd = {
|
|
|
|
.fd = so->s,
|
|
|
|
.events = G_IO_OUT | G_IO_ERR,
|
|
|
|
};
|
|
|
|
so->pollfds_idx = pollfds->len;
|
|
|
|
g_array_append_val(pollfds, pfd);
|
2013-02-20 11:28:27 +01:00
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set for writing if we are connected, can send more, and
|
|
|
|
* we have something to send
|
|
|
|
*/
|
|
|
|
if (CONN_CANFSEND(so) && so->so_rcv.sb_cc) {
|
2013-02-20 11:28:28 +01:00
|
|
|
events |= G_IO_OUT | G_IO_ERR;
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set for reading (and urgent data) if we are connected, can
|
|
|
|
* receive more, and we have room for it XXX /2 ?
|
|
|
|
*/
|
|
|
|
if (CONN_CANFRCV(so) &&
|
|
|
|
(so->so_snd.sb_cc < (so->so_snd.sb_datalen/2))) {
|
2013-02-20 11:28:28 +01:00
|
|
|
events |= G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_PRI;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (events) {
|
|
|
|
GPollFD pfd = {
|
|
|
|
.fd = so->s,
|
|
|
|
.events = events,
|
|
|
|
};
|
|
|
|
so->pollfds_idx = pollfds->len;
|
|
|
|
g_array_append_val(pollfds, pfd);
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* UDP sockets
|
|
|
|
*/
|
|
|
|
for (so = slirp->udb.so_next; so != &slirp->udb;
|
|
|
|
so = so_next) {
|
|
|
|
so_next = so->so_next;
|
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
so->pollfds_idx = -1;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* See if it's timed out
|
|
|
|
*/
|
|
|
|
if (so->so_expire) {
|
|
|
|
if (so->so_expire <= curtime) {
|
|
|
|
udp_detach(so);
|
|
|
|
continue;
|
|
|
|
} else {
|
2013-08-25 04:01:19 +02:00
|
|
|
slirp->do_slowtimo = true; /* Let socket expire */
|
2011-07-20 12:20:18 +02:00
|
|
|
}
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* When UDP packets are received from over the
|
|
|
|
* link, they're sendto()'d straight away, so
|
|
|
|
* no need for setting for writing
|
|
|
|
* Limit the number of packets queued by this session
|
|
|
|
* to 4. Note that even though we try and limit this
|
|
|
|
* to 4 packets, the session could have more queued
|
|
|
|
* if the packets needed to be fragmented
|
|
|
|
* (XXX <= 4 ?)
|
|
|
|
*/
|
|
|
|
if ((so->so_state & SS_ISFCONNECTED) && so->so_queued <= 4) {
|
2013-02-20 11:28:28 +01:00
|
|
|
GPollFD pfd = {
|
|
|
|
.fd = so->s,
|
|
|
|
.events = G_IO_IN | G_IO_HUP | G_IO_ERR,
|
|
|
|
};
|
|
|
|
so->pollfds_idx = pollfds->len;
|
|
|
|
g_array_append_val(pollfds, pfd);
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
}
|
2007-09-16 23:08:06 +02:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* ICMP sockets
|
|
|
|
*/
|
|
|
|
for (so = slirp->icmp.so_next; so != &slirp->icmp;
|
|
|
|
so = so_next) {
|
|
|
|
so_next = so->so_next;
|
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
so->pollfds_idx = -1;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* See if it's timed out
|
|
|
|
*/
|
|
|
|
if (so->so_expire) {
|
|
|
|
if (so->so_expire <= curtime) {
|
|
|
|
icmp_detach(so);
|
|
|
|
continue;
|
|
|
|
} else {
|
2013-08-25 04:01:19 +02:00
|
|
|
slirp->do_slowtimo = true; /* Let socket expire */
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (so->so_state & SS_ISFCONNECTED) {
|
2013-02-20 11:28:28 +01:00
|
|
|
GPollFD pfd = {
|
|
|
|
.fd = so->s,
|
|
|
|
.events = G_IO_IN | G_IO_HUP | G_IO_ERR,
|
|
|
|
};
|
|
|
|
so->pollfds_idx = pollfds->len;
|
|
|
|
g_array_append_val(pollfds, pfd);
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2013-08-25 04:01:21 +02:00
|
|
|
slirp_update_timeout(timeout);
|
2007-09-16 23:08:06 +02:00
|
|
|
}
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
void slirp_pollfds_poll(GArray *pollfds, int select_error)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
2009-06-24 14:42:31 +02:00
|
|
|
Slirp *slirp;
|
2004-04-22 02:10:48 +02:00
|
|
|
struct socket *so, *so_next;
|
|
|
|
int ret;
|
|
|
|
|
2009-09-12 09:36:22 +02:00
|
|
|
if (QTAILQ_EMPTY(&slirp_instances)) {
|
2009-06-24 14:42:30 +02:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2013-08-21 17:03:08 +02:00
|
|
|
curtime = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
|
2007-09-16 23:08:06 +02:00
|
|
|
|
2009-09-12 09:36:22 +02:00
|
|
|
QTAILQ_FOREACH(slirp, &slirp_instances, entry) {
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* See if anything has timed out
|
|
|
|
*/
|
2013-08-25 04:01:20 +02:00
|
|
|
if (slirp->time_fasttimo &&
|
|
|
|
((curtime - slirp->time_fasttimo) >= TIMEOUT_FAST)) {
|
2013-02-20 11:28:27 +01:00
|
|
|
tcp_fasttimo(slirp);
|
2013-08-25 04:01:19 +02:00
|
|
|
slirp->time_fasttimo = 0;
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
2013-08-25 04:01:20 +02:00
|
|
|
if (slirp->do_slowtimo &&
|
|
|
|
((curtime - slirp->last_slowtimo) >= TIMEOUT_SLOW)) {
|
2013-02-20 11:28:27 +01:00
|
|
|
ip_slowtimo(slirp);
|
|
|
|
tcp_slowtimo(slirp);
|
2013-08-25 04:01:19 +02:00
|
|
|
slirp->last_slowtimo = curtime;
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check sockets
|
|
|
|
*/
|
|
|
|
if (!select_error) {
|
|
|
|
/*
|
|
|
|
* Check TCP sockets
|
|
|
|
*/
|
|
|
|
for (so = slirp->tcb.so_next; so != &slirp->tcb;
|
|
|
|
so = so_next) {
|
2013-02-20 11:28:28 +01:00
|
|
|
int revents;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
so_next = so->so_next;
|
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
revents = 0;
|
|
|
|
if (so->pollfds_idx != -1) {
|
|
|
|
revents = g_array_index(pollfds, GPollFD,
|
|
|
|
so->pollfds_idx).revents;
|
|
|
|
}
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
if (so->so_state & SS_NOFDREF || so->s == -1) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check for URG data
|
|
|
|
* This will soread as well, so no need to
|
2013-02-20 11:28:28 +01:00
|
|
|
* test for G_IO_IN below if this succeeds
|
2013-02-20 11:28:27 +01:00
|
|
|
*/
|
2013-02-20 11:28:28 +01:00
|
|
|
if (revents & G_IO_PRI) {
|
2013-02-20 11:28:27 +01:00
|
|
|
sorecvoob(so);
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* Check sockets for reading
|
|
|
|
*/
|
2013-02-20 11:28:28 +01:00
|
|
|
else if (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR)) {
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* Check for incoming connections
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_FACCEPTCONN) {
|
|
|
|
tcp_connect(so);
|
|
|
|
continue;
|
|
|
|
} /* else */
|
|
|
|
ret = soread(so);
|
|
|
|
|
|
|
|
/* Output it if we read something */
|
|
|
|
if (ret > 0) {
|
|
|
|
tcp_output(sototcpcb(so));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check sockets for writing
|
|
|
|
*/
|
2013-02-20 11:28:28 +01:00
|
|
|
if (!(so->so_state & SS_NOFDREF) &&
|
|
|
|
(revents & (G_IO_OUT | G_IO_ERR))) {
|
2013-02-20 11:28:27 +01:00
|
|
|
/*
|
|
|
|
* Check for non-blocking, still-connecting sockets
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
|
|
|
/* Connected */
|
|
|
|
so->so_state &= ~SS_ISFCONNECTING;
|
|
|
|
|
|
|
|
ret = send(so->s, (const void *) &ret, 0, 0);
|
|
|
|
if (ret < 0) {
|
|
|
|
/* XXXXX Must fix, zero bytes is a NOP */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* else failed */
|
|
|
|
so->so_state &= SS_PERSISTENT_MASK;
|
|
|
|
so->so_state |= SS_NOFDREF;
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
2013-02-20 11:28:27 +01:00
|
|
|
/* else so->so_state &= ~SS_ISFCONNECTING; */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Continue tcp_input
|
|
|
|
*/
|
|
|
|
tcp_input((struct mbuf *)NULL, sizeof(struct ip), so);
|
|
|
|
/* continue; */
|
|
|
|
} else {
|
|
|
|
ret = sowrite(so);
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* XXXXX If we wrote something (a lot), there
|
|
|
|
* could be a need for a window update.
|
|
|
|
* In the worst case, the remote will send
|
|
|
|
* a window probe to get things going again
|
|
|
|
*/
|
|
|
|
}
|
2011-07-20 12:20:18 +02:00
|
|
|
|
|
|
|
/*
|
2013-02-20 11:28:27 +01:00
|
|
|
* Probe a still-connecting, non-blocking socket
|
|
|
|
* to check if it's still alive
|
2011-07-20 12:20:18 +02:00
|
|
|
*/
|
2013-02-20 11:28:27 +01:00
|
|
|
#ifdef PROBE_CONN
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
|
|
|
ret = qemu_recv(so->s, &ret, 0, 0);
|
|
|
|
|
|
|
|
if (ret < 0) {
|
|
|
|
/* XXX */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN) {
|
|
|
|
continue; /* Still connecting, continue */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* else failed */
|
|
|
|
so->so_state &= SS_PERSISTENT_MASK;
|
|
|
|
so->so_state |= SS_NOFDREF;
|
|
|
|
|
|
|
|
/* tcp_input will take care of it */
|
|
|
|
} else {
|
|
|
|
ret = send(so->s, &ret, 0, 0);
|
|
|
|
if (ret < 0) {
|
|
|
|
/* XXX */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
/* else failed */
|
|
|
|
so->so_state &= SS_PERSISTENT_MASK;
|
|
|
|
so->so_state |= SS_NOFDREF;
|
|
|
|
} else {
|
|
|
|
so->so_state &= ~SS_ISFCONNECTING;
|
|
|
|
}
|
2011-07-20 12:20:18 +02:00
|
|
|
|
|
|
|
}
|
2013-02-20 11:28:27 +01:00
|
|
|
tcp_input((struct mbuf *)NULL, sizeof(struct ip), so);
|
|
|
|
} /* SS_ISFCONNECTING */
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Now UDP sockets.
|
|
|
|
* Incoming packets are sent straight away, they're not buffered.
|
|
|
|
* Incoming UDP data isn't buffered either.
|
|
|
|
*/
|
|
|
|
for (so = slirp->udb.so_next; so != &slirp->udb;
|
|
|
|
so = so_next) {
|
2013-02-20 11:28:28 +01:00
|
|
|
int revents;
|
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
so_next = so->so_next;
|
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
revents = 0;
|
|
|
|
if (so->pollfds_idx != -1) {
|
|
|
|
revents = g_array_index(pollfds, GPollFD,
|
|
|
|
so->pollfds_idx).revents;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (so->s != -1 &&
|
|
|
|
(revents & (G_IO_IN | G_IO_HUP | G_IO_ERR))) {
|
2013-02-20 11:28:27 +01:00
|
|
|
sorecvfrom(so);
|
2011-07-20 12:20:18 +02:00
|
|
|
}
|
2013-02-20 11:28:27 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check incoming ICMP relies.
|
|
|
|
*/
|
|
|
|
for (so = slirp->icmp.so_next; so != &slirp->icmp;
|
|
|
|
so = so_next) {
|
2013-02-20 11:28:28 +01:00
|
|
|
int revents;
|
|
|
|
|
|
|
|
so_next = so->so_next;
|
|
|
|
|
|
|
|
revents = 0;
|
|
|
|
if (so->pollfds_idx != -1) {
|
|
|
|
revents = g_array_index(pollfds, GPollFD,
|
|
|
|
so->pollfds_idx).revents;
|
|
|
|
}
|
2013-02-20 11:28:27 +01:00
|
|
|
|
2013-02-20 11:28:28 +01:00
|
|
|
if (so->s != -1 &&
|
|
|
|
(revents & (G_IO_IN | G_IO_HUP | G_IO_ERR))) {
|
2013-02-20 11:28:27 +01:00
|
|
|
icmp_receive(so);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-09-16 23:08:06 +02:00
|
|
|
|
2012-03-06 00:02:23 +01:00
|
|
|
if_start(slirp);
|
2009-06-24 14:42:31 +02:00
|
|
|
}
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
static void arp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
|
|
|
struct arphdr *ah = (struct arphdr *)(pkt + ETH_HLEN);
|
2010-09-15 22:33:26 +02:00
|
|
|
uint8_t arp_reply[max(ETH_HLEN + sizeof(struct arphdr), 64)];
|
2004-04-22 02:10:48 +02:00
|
|
|
struct ethhdr *reh = (struct ethhdr *)arp_reply;
|
|
|
|
struct arphdr *rah = (struct arphdr *)(arp_reply + ETH_HLEN);
|
|
|
|
int ar_op;
|
2004-09-06 01:10:26 +02:00
|
|
|
struct ex_list *ex_ptr;
|
2004-04-22 02:10:48 +02:00
|
|
|
|
|
|
|
ar_op = ntohs(ah->ar_op);
|
|
|
|
switch(ar_op) {
|
|
|
|
case ARPOP_REQUEST:
|
2011-08-03 12:52:54 +02:00
|
|
|
if (ah->ar_tip == ah->ar_sip) {
|
|
|
|
/* Gratuitous ARP */
|
|
|
|
arp_table_add(slirp, ah->ar_sip, ah->ar_sha);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
if ((ah->ar_tip & slirp->vnetwork_mask.s_addr) ==
|
|
|
|
slirp->vnetwork_addr.s_addr) {
|
|
|
|
if (ah->ar_tip == slirp->vnameserver_addr.s_addr ||
|
|
|
|
ah->ar_tip == slirp->vhost_addr.s_addr)
|
2004-09-06 01:10:26 +02:00
|
|
|
goto arp_ok;
|
2009-06-24 14:42:31 +02:00
|
|
|
for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
2009-06-24 14:42:28 +02:00
|
|
|
if (ex_ptr->ex_addr.s_addr == ah->ar_tip)
|
2004-09-06 01:10:26 +02:00
|
|
|
goto arp_ok;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
arp_ok:
|
2010-09-15 22:33:26 +02:00
|
|
|
memset(arp_reply, 0, sizeof(arp_reply));
|
2011-08-03 12:52:54 +02:00
|
|
|
|
|
|
|
arp_table_add(slirp, ah->ar_sip, ah->ar_sha);
|
2004-04-22 02:10:48 +02:00
|
|
|
|
|
|
|
/* ARP request for alias/dns mac address */
|
|
|
|
memcpy(reh->h_dest, pkt + ETH_ALEN, ETH_ALEN);
|
2009-06-24 14:42:28 +02:00
|
|
|
memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&reh->h_source[2], &ah->ar_tip, 4);
|
2004-04-22 02:10:48 +02:00
|
|
|
reh->h_proto = htons(ETH_P_ARP);
|
|
|
|
|
|
|
|
rah->ar_hrd = htons(1);
|
|
|
|
rah->ar_pro = htons(ETH_P_IP);
|
|
|
|
rah->ar_hln = ETH_ALEN;
|
|
|
|
rah->ar_pln = 4;
|
|
|
|
rah->ar_op = htons(ARPOP_REPLY);
|
|
|
|
memcpy(rah->ar_sha, reh->h_source, ETH_ALEN);
|
2009-06-24 14:42:28 +02:00
|
|
|
rah->ar_sip = ah->ar_tip;
|
2004-04-22 02:10:48 +02:00
|
|
|
memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN);
|
2009-06-24 14:42:28 +02:00
|
|
|
rah->ar_tip = ah->ar_sip;
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp_output(slirp->opaque, arp_reply, sizeof(arp_reply));
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
|
|
|
break;
|
2008-10-17 19:28:58 +02:00
|
|
|
case ARPOP_REPLY:
|
2011-08-03 12:52:54 +02:00
|
|
|
arp_table_add(slirp, ah->ar_sip, ah->ar_sha);
|
2008-10-17 19:28:58 +02:00
|
|
|
break;
|
2004-04-22 02:10:48 +02:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len)
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
|
|
|
struct mbuf *m;
|
|
|
|
int proto;
|
|
|
|
|
|
|
|
if (pkt_len < ETH_HLEN)
|
|
|
|
return;
|
2007-09-17 10:09:54 +02:00
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
proto = ntohs(*(uint16_t *)(pkt + 12));
|
|
|
|
switch(proto) {
|
|
|
|
case ETH_P_ARP:
|
2009-06-24 14:42:31 +02:00
|
|
|
arp_input(slirp, pkt, pkt_len);
|
2004-04-22 02:10:48 +02:00
|
|
|
break;
|
|
|
|
case ETH_P_IP:
|
2016-03-15 10:31:19 +01:00
|
|
|
case ETH_P_IPV6:
|
2009-06-24 14:42:31 +02:00
|
|
|
m = m_get(slirp);
|
2004-04-22 02:10:48 +02:00
|
|
|
if (!m)
|
|
|
|
return;
|
2006-05-10 21:21:58 +02:00
|
|
|
/* Note: we add to align the IP header */
|
2008-12-07 19:15:23 +01:00
|
|
|
if (M_FREEROOM(m) < pkt_len + 2) {
|
|
|
|
m_inc(m, pkt_len + 2);
|
|
|
|
}
|
2006-05-10 21:21:58 +02:00
|
|
|
m->m_len = pkt_len + 2;
|
|
|
|
memcpy(m->m_data + 2, pkt, pkt_len);
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2006-05-10 21:21:58 +02:00
|
|
|
m->m_data += 2 + ETH_HLEN;
|
|
|
|
m->m_len -= 2 + ETH_HLEN;
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2016-03-15 10:31:19 +01:00
|
|
|
if (proto == ETH_P_IP) {
|
|
|
|
ip_input(m);
|
|
|
|
} else if (proto == ETH_P_IPV6) {
|
|
|
|
ip6_input(m);
|
|
|
|
}
|
2004-04-22 02:10:48 +02:00
|
|
|
break;
|
2016-03-15 10:31:19 +01:00
|
|
|
|
2004-04-22 02:10:48 +02:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-12-19 22:24:57 +01:00
|
|
|
/* Prepare the IPv4 packet to be sent to the ethernet device. Returns 1 if no
|
|
|
|
* packet should be sent, 0 if the packet must be re-queued, 2 if the packet
|
|
|
|
* is ready to go.
|
2011-08-01 18:18:37 +02:00
|
|
|
*/
|
2015-12-19 22:24:57 +01:00
|
|
|
static int if_encap4(Slirp *slirp, struct mbuf *ifm, struct ethhdr *eh,
|
|
|
|
uint8_t ethaddr[ETH_ALEN])
|
2004-04-22 02:10:48 +02:00
|
|
|
{
|
2011-08-01 18:18:37 +02:00
|
|
|
const struct ip *iph = (const struct ip *)ifm->m_data;
|
2004-04-22 02:10:48 +02:00
|
|
|
|
2014-05-14 03:13:09 +02:00
|
|
|
if (iph->ip_dst.s_addr == 0) {
|
|
|
|
/* 0.0.0.0 can not be a destination address, something went wrong,
|
|
|
|
* avoid making it worse */
|
|
|
|
return 1;
|
|
|
|
}
|
2011-08-03 12:52:54 +02:00
|
|
|
if (!arp_table_search(slirp, iph->ip_dst.s_addr, ethaddr)) {
|
2008-10-17 19:28:58 +02:00
|
|
|
uint8_t arp_req[ETH_HLEN + sizeof(struct arphdr)];
|
|
|
|
struct ethhdr *reh = (struct ethhdr *)arp_req;
|
|
|
|
struct arphdr *rah = (struct arphdr *)(arp_req + ETH_HLEN);
|
|
|
|
|
2015-12-19 22:24:56 +01:00
|
|
|
if (!ifm->resolution_requested) {
|
2011-08-01 18:18:37 +02:00
|
|
|
/* If the client addr is not known, send an ARP request */
|
|
|
|
memset(reh->h_dest, 0xff, ETH_ALEN);
|
|
|
|
memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&reh->h_source[2], &slirp->vhost_addr, 4);
|
|
|
|
reh->h_proto = htons(ETH_P_ARP);
|
|
|
|
rah->ar_hrd = htons(1);
|
|
|
|
rah->ar_pro = htons(ETH_P_IP);
|
|
|
|
rah->ar_hln = ETH_ALEN;
|
|
|
|
rah->ar_pln = 4;
|
|
|
|
rah->ar_op = htons(ARPOP_REQUEST);
|
|
|
|
|
|
|
|
/* source hw addr */
|
|
|
|
memcpy(rah->ar_sha, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&rah->ar_sha[2], &slirp->vhost_addr, 4);
|
|
|
|
|
|
|
|
/* source IP */
|
|
|
|
rah->ar_sip = slirp->vhost_addr.s_addr;
|
|
|
|
|
|
|
|
/* target hw addr (none) */
|
|
|
|
memset(rah->ar_tha, 0, ETH_ALEN);
|
|
|
|
|
|
|
|
/* target IP */
|
|
|
|
rah->ar_tip = iph->ip_dst.s_addr;
|
|
|
|
slirp->client_ipaddr = iph->ip_dst;
|
|
|
|
slirp_output(slirp->opaque, arp_req, sizeof(arp_req));
|
2015-12-19 22:24:56 +01:00
|
|
|
ifm->resolution_requested = true;
|
2011-08-05 14:05:53 +02:00
|
|
|
|
|
|
|
/* Expire request and drop outgoing packet after 1 second */
|
2013-08-21 17:03:08 +02:00
|
|
|
ifm->expiration_date = qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + 1000000000ULL;
|
2011-08-01 18:18:37 +02:00
|
|
|
}
|
|
|
|
return 0;
|
2008-10-17 19:28:58 +02:00
|
|
|
} else {
|
2009-06-24 14:42:28 +02:00
|
|
|
memcpy(eh->h_source, special_ethaddr, ETH_ALEN - 4);
|
2008-10-17 19:28:58 +02:00
|
|
|
/* XXX: not correct */
|
2009-06-24 14:42:31 +02:00
|
|
|
memcpy(&eh->h_source[2], &slirp->vhost_addr, 4);
|
2008-10-17 19:28:58 +02:00
|
|
|
eh->h_proto = htons(ETH_P_IP);
|
2015-12-19 22:24:57 +01:00
|
|
|
|
|
|
|
/* Send this */
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-03-15 10:31:19 +01:00
|
|
|
/* Prepare the IPv6 packet to be sent to the ethernet device. Returns 1 if no
|
|
|
|
* packet should be sent, 0 if the packet must be re-queued, 2 if the packet
|
|
|
|
* is ready to go.
|
|
|
|
*/
|
|
|
|
static int if_encap6(Slirp *slirp, struct mbuf *ifm, struct ethhdr *eh,
|
|
|
|
uint8_t ethaddr[ETH_ALEN])
|
|
|
|
{
|
|
|
|
const struct ip6 *ip6h = mtod(ifm, const struct ip6 *);
|
|
|
|
if (!ndp_table_search(slirp, ip6h->ip_dst, ethaddr)) {
|
|
|
|
if (!ifm->resolution_requested) {
|
|
|
|
ndp_send_ns(slirp, ip6h->ip_dst);
|
|
|
|
ifm->resolution_requested = true;
|
|
|
|
ifm->expiration_date =
|
|
|
|
qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + 1000000000ULL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
eh->h_proto = htons(ETH_P_IPV6);
|
|
|
|
in6_compute_ethaddr(ip6h->ip_src, eh->h_source);
|
|
|
|
|
|
|
|
/* Send this */
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-12-19 22:24:57 +01:00
|
|
|
/* Output the IP packet to the ethernet device. Returns 0 if the packet must be
|
|
|
|
* re-queued.
|
|
|
|
*/
|
|
|
|
int if_encap(Slirp *slirp, struct mbuf *ifm)
|
|
|
|
{
|
|
|
|
uint8_t buf[1600];
|
|
|
|
struct ethhdr *eh = (struct ethhdr *)buf;
|
|
|
|
uint8_t ethaddr[ETH_ALEN];
|
|
|
|
const struct ip *iph = (const struct ip *)ifm->m_data;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (ifm->m_len + ETH_HLEN > sizeof(buf)) {
|
2011-08-01 18:18:37 +02:00
|
|
|
return 1;
|
2008-10-17 19:28:58 +02:00
|
|
|
}
|
2015-12-19 22:24:57 +01:00
|
|
|
|
|
|
|
switch (iph->ip_v) {
|
|
|
|
case IPVERSION:
|
|
|
|
ret = if_encap4(slirp, ifm, eh, ethaddr);
|
|
|
|
if (ret < 2) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2016-03-15 10:31:19 +01:00
|
|
|
case IP6VERSION:
|
|
|
|
ret = if_encap6(slirp, ifm, eh, ethaddr);
|
|
|
|
if (ret < 2) {
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2015-12-19 22:24:57 +01:00
|
|
|
default:
|
2016-03-15 10:31:19 +01:00
|
|
|
g_assert_not_reached();
|
2015-12-19 22:24:57 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(eh->h_dest, ethaddr, ETH_ALEN);
|
|
|
|
DEBUG_ARGS((dfd, " src = %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
|
|
eh->h_source[0], eh->h_source[1], eh->h_source[2],
|
|
|
|
eh->h_source[3], eh->h_source[4], eh->h_source[5]));
|
|
|
|
DEBUG_ARGS((dfd, " dst = %02x:%02x:%02x:%02x:%02x:%02x\n",
|
|
|
|
eh->h_dest[0], eh->h_dest[1], eh->h_dest[2],
|
|
|
|
eh->h_dest[3], eh->h_dest[4], eh->h_dest[5]));
|
|
|
|
memcpy(buf + sizeof(struct ethhdr), ifm->m_data, ifm->m_len);
|
|
|
|
slirp_output(slirp->opaque, buf, ifm->m_len + ETH_HLEN);
|
|
|
|
return 1;
|
2004-04-22 02:10:48 +02:00
|
|
|
}
|
2004-08-26 00:12:49 +02:00
|
|
|
|
2009-06-24 14:42:29 +02:00
|
|
|
/* Drop host forwarding rule, return 0 if found. */
|
2009-06-24 14:42:31 +02:00
|
|
|
int slirp_remove_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr,
|
|
|
|
int host_port)
|
2009-05-26 13:03:26 +02:00
|
|
|
{
|
|
|
|
struct socket *so;
|
2009-06-24 14:42:31 +02:00
|
|
|
struct socket *head = (is_udp ? &slirp->udb : &slirp->tcb);
|
2009-06-24 14:42:28 +02:00
|
|
|
struct sockaddr_in addr;
|
|
|
|
int port = htons(host_port);
|
|
|
|
socklen_t addr_len;
|
2009-05-26 13:03:26 +02:00
|
|
|
|
|
|
|
for (so = head->so_next; so != head; so = so->so_next) {
|
2009-06-24 14:42:28 +02:00
|
|
|
addr_len = sizeof(addr);
|
2009-06-24 14:42:29 +02:00
|
|
|
if ((so->so_state & SS_HOSTFWD) &&
|
|
|
|
getsockname(so->s, (struct sockaddr *)&addr, &addr_len) == 0 &&
|
2009-06-24 14:42:28 +02:00
|
|
|
addr.sin_addr.s_addr == host_addr.s_addr &&
|
2009-06-24 14:42:28 +02:00
|
|
|
addr.sin_port == port) {
|
2009-05-26 13:03:26 +02:00
|
|
|
close(so->s);
|
|
|
|
sofree(so);
|
2009-06-24 14:42:29 +02:00
|
|
|
return 0;
|
2009-05-26 13:03:26 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:29 +02:00
|
|
|
return -1;
|
2009-05-26 13:03:26 +02:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
int slirp_add_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr,
|
|
|
|
int host_port, struct in_addr guest_addr, int guest_port)
|
2004-08-26 00:12:49 +02:00
|
|
|
{
|
2009-06-24 14:42:28 +02:00
|
|
|
if (!guest_addr.s_addr) {
|
2009-06-24 14:42:31 +02:00
|
|
|
guest_addr = slirp->vdhcp_startaddr;
|
2009-06-24 14:42:28 +02:00
|
|
|
}
|
2004-08-26 00:12:49 +02:00
|
|
|
if (is_udp) {
|
2009-06-24 14:42:31 +02:00
|
|
|
if (!udp_listen(slirp, host_addr.s_addr, htons(host_port),
|
|
|
|
guest_addr.s_addr, htons(guest_port), SS_HOSTFWD))
|
2004-08-26 00:12:49 +02:00
|
|
|
return -1;
|
|
|
|
} else {
|
2009-06-24 14:42:31 +02:00
|
|
|
if (!tcp_listen(slirp, host_addr.s_addr, htons(host_port),
|
|
|
|
guest_addr.s_addr, htons(guest_port), SS_HOSTFWD))
|
2004-08-26 00:12:49 +02:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
2004-09-06 01:10:26 +02:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
int slirp_add_exec(Slirp *slirp, int do_pty, const void *args,
|
2009-07-22 17:03:52 +02:00
|
|
|
struct in_addr *guest_addr, int guest_port)
|
2004-09-06 01:10:26 +02:00
|
|
|
{
|
2009-07-22 17:03:52 +02:00
|
|
|
if (!guest_addr->s_addr) {
|
|
|
|
guest_addr->s_addr = slirp->vnetwork_addr.s_addr |
|
2009-06-24 14:42:31 +02:00
|
|
|
(htonl(0x0204) & ~slirp->vnetwork_mask.s_addr);
|
2009-06-24 14:42:28 +02:00
|
|
|
}
|
2009-07-22 17:03:52 +02:00
|
|
|
if ((guest_addr->s_addr & slirp->vnetwork_mask.s_addr) !=
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->vnetwork_addr.s_addr ||
|
2009-07-22 17:03:52 +02:00
|
|
|
guest_addr->s_addr == slirp->vhost_addr.s_addr ||
|
|
|
|
guest_addr->s_addr == slirp->vnameserver_addr.s_addr) {
|
2009-06-24 14:42:28 +02:00
|
|
|
return -1;
|
|
|
|
}
|
2009-07-22 17:03:52 +02:00
|
|
|
return add_exec(&slirp->exec_list, do_pty, (char *)args, *guest_addr,
|
2009-06-24 14:42:28 +02:00
|
|
|
htons(guest_port));
|
2004-09-06 01:10:26 +02:00
|
|
|
}
|
2009-01-08 20:18:21 +01:00
|
|
|
|
|
|
|
ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags)
|
|
|
|
{
|
2013-02-20 11:28:27 +01:00
|
|
|
if (so->s == -1 && so->extra) {
|
|
|
|
qemu_chr_fe_write(so->extra, buf, len);
|
|
|
|
return len;
|
|
|
|
}
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
return send(so->s, buf, len, flags);
|
2009-01-08 20:18:21 +01:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:28 +02:00
|
|
|
static struct socket *
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp_find_ctl_socket(Slirp *slirp, struct in_addr guest_addr, int guest_port)
|
2009-01-08 20:18:21 +01:00
|
|
|
{
|
2009-06-24 14:42:28 +02:00
|
|
|
struct socket *so;
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) {
|
2009-06-24 14:42:28 +02:00
|
|
|
if (so->so_faddr.s_addr == guest_addr.s_addr &&
|
|
|
|
htons(so->so_fport) == guest_port) {
|
|
|
|
return so;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
2009-01-08 20:18:21 +01:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
size_t slirp_socket_can_recv(Slirp *slirp, struct in_addr guest_addr,
|
|
|
|
int guest_port)
|
2009-01-08 20:18:21 +01:00
|
|
|
{
|
2013-02-20 11:28:27 +01:00
|
|
|
struct iovec iov[2];
|
|
|
|
struct socket *so;
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
so = slirp_find_ctl_socket(slirp, guest_addr, guest_port);
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
if (!so || so->so_state & SS_NOFDREF) {
|
|
|
|
return 0;
|
|
|
|
}
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
if (!CONN_CANFRCV(so) || so->so_snd.sb_cc >= (so->so_snd.sb_datalen/2)) {
|
|
|
|
return 0;
|
|
|
|
}
|
2009-01-08 20:18:21 +01:00
|
|
|
|
2013-02-20 11:28:27 +01:00
|
|
|
return sopreprbuf(so, iov, NULL);
|
2009-01-08 20:18:21 +01:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr, int guest_port,
|
2009-06-24 14:42:28 +02:00
|
|
|
const uint8_t *buf, int size)
|
2009-01-08 20:18:21 +01:00
|
|
|
{
|
|
|
|
int ret;
|
2009-06-24 14:42:31 +02:00
|
|
|
struct socket *so = slirp_find_ctl_socket(slirp, guest_addr, guest_port);
|
2009-06-24 14:42:28 +02:00
|
|
|
|
2009-01-08 20:18:21 +01:00
|
|
|
if (!so)
|
|
|
|
return;
|
|
|
|
|
2009-01-12 18:51:06 +01:00
|
|
|
ret = soreadbuf(so, (const char *)buf, size);
|
2009-01-08 20:18:21 +01:00
|
|
|
|
|
|
|
if (ret > 0)
|
|
|
|
tcp_output(sototcpcb(so));
|
|
|
|
}
|
2009-01-08 20:27:07 +01:00
|
|
|
|
|
|
|
static void slirp_tcp_save(QEMUFile *f, struct tcpcb *tp)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
qemu_put_sbe16(f, tp->t_state);
|
|
|
|
for (i = 0; i < TCPT_NTIMERS; i++)
|
|
|
|
qemu_put_sbe16(f, tp->t_timer[i]);
|
|
|
|
qemu_put_sbe16(f, tp->t_rxtshift);
|
|
|
|
qemu_put_sbe16(f, tp->t_rxtcur);
|
|
|
|
qemu_put_sbe16(f, tp->t_dupacks);
|
|
|
|
qemu_put_be16(f, tp->t_maxseg);
|
|
|
|
qemu_put_sbyte(f, tp->t_force);
|
|
|
|
qemu_put_be16(f, tp->t_flags);
|
|
|
|
qemu_put_be32(f, tp->snd_una);
|
|
|
|
qemu_put_be32(f, tp->snd_nxt);
|
|
|
|
qemu_put_be32(f, tp->snd_up);
|
|
|
|
qemu_put_be32(f, tp->snd_wl1);
|
|
|
|
qemu_put_be32(f, tp->snd_wl2);
|
|
|
|
qemu_put_be32(f, tp->iss);
|
|
|
|
qemu_put_be32(f, tp->snd_wnd);
|
|
|
|
qemu_put_be32(f, tp->rcv_wnd);
|
|
|
|
qemu_put_be32(f, tp->rcv_nxt);
|
|
|
|
qemu_put_be32(f, tp->rcv_up);
|
|
|
|
qemu_put_be32(f, tp->irs);
|
|
|
|
qemu_put_be32(f, tp->rcv_adv);
|
|
|
|
qemu_put_be32(f, tp->snd_max);
|
|
|
|
qemu_put_be32(f, tp->snd_cwnd);
|
|
|
|
qemu_put_be32(f, tp->snd_ssthresh);
|
|
|
|
qemu_put_sbe16(f, tp->t_idle);
|
|
|
|
qemu_put_sbe16(f, tp->t_rtt);
|
|
|
|
qemu_put_be32(f, tp->t_rtseq);
|
|
|
|
qemu_put_sbe16(f, tp->t_srtt);
|
|
|
|
qemu_put_sbe16(f, tp->t_rttvar);
|
|
|
|
qemu_put_be16(f, tp->t_rttmin);
|
|
|
|
qemu_put_be32(f, tp->max_sndwnd);
|
|
|
|
qemu_put_byte(f, tp->t_oobflags);
|
|
|
|
qemu_put_byte(f, tp->t_iobc);
|
|
|
|
qemu_put_sbe16(f, tp->t_softerror);
|
|
|
|
qemu_put_byte(f, tp->snd_scale);
|
|
|
|
qemu_put_byte(f, tp->rcv_scale);
|
|
|
|
qemu_put_byte(f, tp->request_r_scale);
|
|
|
|
qemu_put_byte(f, tp->requested_s_scale);
|
|
|
|
qemu_put_be32(f, tp->ts_recent);
|
|
|
|
qemu_put_be32(f, tp->ts_recent_age);
|
|
|
|
qemu_put_be32(f, tp->last_ack_sent);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf)
|
|
|
|
{
|
|
|
|
uint32_t off;
|
|
|
|
|
|
|
|
qemu_put_be32(f, sbuf->sb_cc);
|
|
|
|
qemu_put_be32(f, sbuf->sb_datalen);
|
|
|
|
off = (uint32_t)(sbuf->sb_wptr - sbuf->sb_data);
|
|
|
|
qemu_put_sbe32(f, off);
|
|
|
|
off = (uint32_t)(sbuf->sb_rptr - sbuf->sb_data);
|
|
|
|
qemu_put_sbe32(f, off);
|
|
|
|
qemu_put_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void slirp_socket_save(QEMUFile *f, struct socket *so)
|
|
|
|
{
|
|
|
|
qemu_put_be32(f, so->so_urgc);
|
2015-12-19 22:24:58 +01:00
|
|
|
qemu_put_be16(f, so->so_ffamily);
|
|
|
|
switch (so->so_ffamily) {
|
|
|
|
case AF_INET:
|
|
|
|
qemu_put_be32(f, so->so_faddr.s_addr);
|
|
|
|
qemu_put_be16(f, so->so_fport);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
error_report(
|
|
|
|
"so_ffamily unknown, unable to save so_faddr and so_fport\n");
|
|
|
|
}
|
|
|
|
qemu_put_be16(f, so->so_lfamily);
|
|
|
|
switch (so->so_lfamily) {
|
|
|
|
case AF_INET:
|
|
|
|
qemu_put_be32(f, so->so_laddr.s_addr);
|
|
|
|
qemu_put_be16(f, so->so_lport);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
error_report(
|
|
|
|
"so_ffamily unknown, unable to save so_laddr and so_lport\n");
|
|
|
|
}
|
2009-01-08 20:27:07 +01:00
|
|
|
qemu_put_byte(f, so->so_iptos);
|
|
|
|
qemu_put_byte(f, so->so_emu);
|
|
|
|
qemu_put_byte(f, so->so_type);
|
|
|
|
qemu_put_be32(f, so->so_state);
|
|
|
|
slirp_sbuf_save(f, &so->so_rcv);
|
|
|
|
slirp_sbuf_save(f, &so->so_snd);
|
|
|
|
slirp_tcp_save(f, so->so_tcpcb);
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
static void slirp_bootp_save(QEMUFile *f, Slirp *slirp)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < NB_BOOTP_CLIENTS; i++) {
|
|
|
|
qemu_put_be16(f, slirp->bootp_clients[i].allocated);
|
|
|
|
qemu_put_buffer(f, slirp->bootp_clients[i].macaddr, 6);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-08 20:27:07 +01:00
|
|
|
static void slirp_state_save(QEMUFile *f, void *opaque)
|
|
|
|
{
|
2009-06-24 14:42:31 +02:00
|
|
|
Slirp *slirp = opaque;
|
2009-01-08 20:27:07 +01:00
|
|
|
struct ex_list *ex_ptr;
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
|
2009-01-08 20:27:07 +01:00
|
|
|
if (ex_ptr->ex_pty == 3) {
|
|
|
|
struct socket *so;
|
2009-06-24 14:42:31 +02:00
|
|
|
so = slirp_find_ctl_socket(slirp, ex_ptr->ex_addr,
|
|
|
|
ntohs(ex_ptr->ex_fport));
|
2009-01-08 20:27:07 +01:00
|
|
|
if (!so)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
qemu_put_byte(f, 42);
|
|
|
|
slirp_socket_save(f, so);
|
|
|
|
}
|
|
|
|
qemu_put_byte(f, 0);
|
2009-06-24 14:42:30 +02:00
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
qemu_put_be16(f, slirp->ip_id);
|
2009-06-24 14:42:31 +02:00
|
|
|
|
|
|
|
slirp_bootp_save(f, slirp);
|
2009-01-08 20:27:07 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static void slirp_tcp_load(QEMUFile *f, struct tcpcb *tp)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
tp->t_state = qemu_get_sbe16(f);
|
|
|
|
for (i = 0; i < TCPT_NTIMERS; i++)
|
|
|
|
tp->t_timer[i] = qemu_get_sbe16(f);
|
|
|
|
tp->t_rxtshift = qemu_get_sbe16(f);
|
|
|
|
tp->t_rxtcur = qemu_get_sbe16(f);
|
|
|
|
tp->t_dupacks = qemu_get_sbe16(f);
|
|
|
|
tp->t_maxseg = qemu_get_be16(f);
|
|
|
|
tp->t_force = qemu_get_sbyte(f);
|
|
|
|
tp->t_flags = qemu_get_be16(f);
|
|
|
|
tp->snd_una = qemu_get_be32(f);
|
|
|
|
tp->snd_nxt = qemu_get_be32(f);
|
|
|
|
tp->snd_up = qemu_get_be32(f);
|
|
|
|
tp->snd_wl1 = qemu_get_be32(f);
|
|
|
|
tp->snd_wl2 = qemu_get_be32(f);
|
|
|
|
tp->iss = qemu_get_be32(f);
|
|
|
|
tp->snd_wnd = qemu_get_be32(f);
|
|
|
|
tp->rcv_wnd = qemu_get_be32(f);
|
|
|
|
tp->rcv_nxt = qemu_get_be32(f);
|
|
|
|
tp->rcv_up = qemu_get_be32(f);
|
|
|
|
tp->irs = qemu_get_be32(f);
|
|
|
|
tp->rcv_adv = qemu_get_be32(f);
|
|
|
|
tp->snd_max = qemu_get_be32(f);
|
|
|
|
tp->snd_cwnd = qemu_get_be32(f);
|
|
|
|
tp->snd_ssthresh = qemu_get_be32(f);
|
|
|
|
tp->t_idle = qemu_get_sbe16(f);
|
|
|
|
tp->t_rtt = qemu_get_sbe16(f);
|
|
|
|
tp->t_rtseq = qemu_get_be32(f);
|
|
|
|
tp->t_srtt = qemu_get_sbe16(f);
|
|
|
|
tp->t_rttvar = qemu_get_sbe16(f);
|
|
|
|
tp->t_rttmin = qemu_get_be16(f);
|
|
|
|
tp->max_sndwnd = qemu_get_be32(f);
|
|
|
|
tp->t_oobflags = qemu_get_byte(f);
|
|
|
|
tp->t_iobc = qemu_get_byte(f);
|
|
|
|
tp->t_softerror = qemu_get_sbe16(f);
|
|
|
|
tp->snd_scale = qemu_get_byte(f);
|
|
|
|
tp->rcv_scale = qemu_get_byte(f);
|
|
|
|
tp->request_r_scale = qemu_get_byte(f);
|
|
|
|
tp->requested_s_scale = qemu_get_byte(f);
|
|
|
|
tp->ts_recent = qemu_get_be32(f);
|
|
|
|
tp->ts_recent_age = qemu_get_be32(f);
|
|
|
|
tp->last_ack_sent = qemu_get_be32(f);
|
|
|
|
tcp_template(tp);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf)
|
|
|
|
{
|
|
|
|
uint32_t off, sb_cc, sb_datalen;
|
|
|
|
|
|
|
|
sb_cc = qemu_get_be32(f);
|
|
|
|
sb_datalen = qemu_get_be32(f);
|
|
|
|
|
|
|
|
sbreserve(sbuf, sb_datalen);
|
|
|
|
|
|
|
|
if (sbuf->sb_datalen != sb_datalen)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
sbuf->sb_cc = sb_cc;
|
|
|
|
|
|
|
|
off = qemu_get_sbe32(f);
|
|
|
|
sbuf->sb_wptr = sbuf->sb_data + off;
|
|
|
|
off = qemu_get_sbe32(f);
|
|
|
|
sbuf->sb_rptr = sbuf->sb_data + off;
|
|
|
|
qemu_get_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int slirp_socket_load(QEMUFile *f, struct socket *so)
|
|
|
|
{
|
|
|
|
if (tcp_attach(so) < 0)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
so->so_urgc = qemu_get_be32(f);
|
2015-12-19 22:24:58 +01:00
|
|
|
so->so_ffamily = qemu_get_be16(f);
|
|
|
|
switch (so->so_ffamily) {
|
|
|
|
case AF_INET:
|
|
|
|
so->so_faddr.s_addr = qemu_get_be32(f);
|
|
|
|
so->so_fport = qemu_get_be16(f);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
error_report(
|
|
|
|
"so_ffamily unknown, unable to restore so_faddr and so_lport\n");
|
|
|
|
}
|
|
|
|
so->so_lfamily = qemu_get_be16(f);
|
|
|
|
switch (so->so_lfamily) {
|
|
|
|
case AF_INET:
|
|
|
|
so->so_laddr.s_addr = qemu_get_be32(f);
|
|
|
|
so->so_lport = qemu_get_be16(f);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
error_report(
|
|
|
|
"so_ffamily unknown, unable to restore so_laddr and so_lport\n");
|
|
|
|
}
|
2009-01-08 20:27:07 +01:00
|
|
|
so->so_iptos = qemu_get_byte(f);
|
|
|
|
so->so_emu = qemu_get_byte(f);
|
|
|
|
so->so_type = qemu_get_byte(f);
|
|
|
|
so->so_state = qemu_get_be32(f);
|
|
|
|
if (slirp_sbuf_load(f, &so->so_rcv) < 0)
|
|
|
|
return -ENOMEM;
|
|
|
|
if (slirp_sbuf_load(f, &so->so_snd) < 0)
|
|
|
|
return -ENOMEM;
|
|
|
|
slirp_tcp_load(f, so->so_tcpcb);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
static void slirp_bootp_load(QEMUFile *f, Slirp *slirp)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < NB_BOOTP_CLIENTS; i++) {
|
|
|
|
slirp->bootp_clients[i].allocated = qemu_get_be16(f);
|
|
|
|
qemu_get_buffer(f, slirp->bootp_clients[i].macaddr, 6);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-08 20:27:07 +01:00
|
|
|
static int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
|
|
|
|
{
|
2009-06-24 14:42:31 +02:00
|
|
|
Slirp *slirp = opaque;
|
2009-01-08 20:27:07 +01:00
|
|
|
struct ex_list *ex_ptr;
|
|
|
|
|
2010-03-07 14:45:38 +01:00
|
|
|
while (qemu_get_byte(f)) {
|
2009-01-08 20:27:07 +01:00
|
|
|
int ret;
|
2009-06-24 14:42:31 +02:00
|
|
|
struct socket *so = socreate(slirp);
|
2009-01-08 20:27:07 +01:00
|
|
|
|
|
|
|
if (!so)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
ret = slirp_socket_load(f, so);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) !=
|
|
|
|
slirp->vnetwork_addr.s_addr) {
|
2009-01-08 20:27:07 +01:00
|
|
|
return -EINVAL;
|
2009-06-24 14:42:28 +02:00
|
|
|
}
|
2009-06-24 14:42:31 +02:00
|
|
|
for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
2009-01-08 20:27:07 +01:00
|
|
|
if (ex_ptr->ex_pty == 3 &&
|
2009-06-24 14:42:28 +02:00
|
|
|
so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr &&
|
|
|
|
so->so_fport == ex_ptr->ex_fport) {
|
2009-01-08 20:27:07 +01:00
|
|
|
break;
|
2009-06-24 14:42:28 +02:00
|
|
|
}
|
|
|
|
}
|
2009-01-08 20:27:07 +01:00
|
|
|
if (!ex_ptr)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-01-12 18:51:06 +01:00
|
|
|
so->extra = (void *)ex_ptr->ex_exec;
|
2009-01-08 20:27:07 +01:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:30 +02:00
|
|
|
if (version_id >= 2) {
|
2009-06-24 14:42:31 +02:00
|
|
|
slirp->ip_id = qemu_get_be16(f);
|
2009-06-24 14:42:30 +02:00
|
|
|
}
|
|
|
|
|
2009-06-24 14:42:31 +02:00
|
|
|
if (version_id >= 3) {
|
|
|
|
slirp_bootp_load(f, slirp);
|
|
|
|
}
|
|
|
|
|
2009-01-08 20:27:07 +01:00
|
|
|
return 0;
|
|
|
|
}
|