2008-10-17 17:31:57 +00:00
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/*
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* libslirp glue
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*
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* Copyright (c) 2004-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2009-01-08 19:18:21 +00:00
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#include "qemu-common.h"
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2009-01-12 17:51:06 +00:00
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#include "qemu-char.h"
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2004-04-22 00:10:48 +00:00
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#include "slirp.h"
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2009-01-08 19:27:07 +00:00
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#include "hw/hw.h"
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2004-04-22 00:10:48 +00:00
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/* host address */
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struct in_addr our_addr;
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/* host dns address */
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struct in_addr dns_addr;
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/* host loopback address */
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struct in_addr loopback_addr;
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2009-06-24 12:42:28 +00:00
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/* virtual network configuration */
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struct in_addr vnetwork_addr;
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struct in_addr vnetwork_mask;
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struct in_addr vhost_addr;
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struct in_addr vdhcp_startaddr;
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struct in_addr vnameserver_addr;
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/* emulated hosts use the MAC addr 52:55:IP:IP:IP:IP */
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2007-10-26 19:01:16 +00:00
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static const uint8_t special_ethaddr[6] = {
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2009-06-24 12:42:28 +00:00
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0x52, 0x55, 0x00, 0x00, 0x00, 0x00
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2004-04-22 00:10:48 +00:00
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};
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2008-10-17 17:28:58 +00:00
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/* ARP cache for the guest IP addresses (XXX: allow many entries) */
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2004-04-22 00:10:48 +00:00
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uint8_t client_ethaddr[6];
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2008-10-17 17:28:58 +00:00
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static struct in_addr client_ipaddr;
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static const uint8_t zero_ethaddr[6] = { 0, 0, 0, 0, 0, 0 };
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2004-04-22 00:10:48 +00:00
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2009-01-08 19:24:00 +00:00
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int slirp_restrict;
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2009-03-07 15:32:56 +00:00
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static int do_slowtimo;
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2004-04-22 00:10:48 +00:00
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int link_up;
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struct timeval tt;
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FILE *lfd;
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2004-09-05 23:10:26 +00:00
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struct ex_list *exec_list;
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2004-04-22 00:10:48 +00:00
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/* XXX: suppress those select globals */
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fd_set *global_readfds, *global_writefds, *global_xfds;
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2006-04-30 21:34:15 +00:00
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char slirp_hostname[33];
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2006-04-16 11:06:58 +00:00
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2004-04-22 00:10:48 +00:00
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#ifdef _WIN32
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static int get_dns_addr(struct in_addr *pdns_addr)
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{
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2004-07-12 22:33:07 +00:00
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FIXED_INFO *FixedInfo=NULL;
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ULONG BufLen;
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DWORD ret;
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IP_ADDR_STRING *pIPAddr;
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struct in_addr tmp_addr;
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2007-09-17 08:09:54 +00:00
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2004-07-12 22:33:07 +00:00
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FixedInfo = (FIXED_INFO *)GlobalAlloc(GPTR, sizeof(FIXED_INFO));
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BufLen = sizeof(FIXED_INFO);
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2007-09-17 08:09:54 +00:00
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2004-07-12 22:33:07 +00:00
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if (ERROR_BUFFER_OVERFLOW == GetNetworkParams(FixedInfo, &BufLen)) {
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if (FixedInfo) {
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GlobalFree(FixedInfo);
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FixedInfo = NULL;
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}
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FixedInfo = GlobalAlloc(GPTR, BufLen);
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}
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2007-09-16 21:08:06 +00:00
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2004-07-12 22:33:07 +00:00
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if ((ret = GetNetworkParams(FixedInfo, &BufLen)) != ERROR_SUCCESS) {
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printf("GetNetworkParams failed. ret = %08x\n", (u_int)ret );
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if (FixedInfo) {
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GlobalFree(FixedInfo);
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FixedInfo = NULL;
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}
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return -1;
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}
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2007-09-17 08:09:54 +00:00
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2004-07-12 22:33:07 +00:00
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pIPAddr = &(FixedInfo->DnsServerList);
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inet_aton(pIPAddr->IpAddress.String, &tmp_addr);
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*pdns_addr = tmp_addr;
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#if 0
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printf( "DNS Servers:\n" );
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printf( "DNS Addr:%s\n", pIPAddr->IpAddress.String );
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2007-09-17 08:09:54 +00:00
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2004-07-12 22:33:07 +00:00
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pIPAddr = FixedInfo -> DnsServerList.Next;
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while ( pIPAddr ) {
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printf( "DNS Addr:%s\n", pIPAddr ->IpAddress.String );
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pIPAddr = pIPAddr ->Next;
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}
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#endif
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if (FixedInfo) {
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GlobalFree(FixedInfo);
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FixedInfo = NULL;
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}
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return 0;
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2004-04-22 00:10:48 +00:00
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}
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#else
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static int get_dns_addr(struct in_addr *pdns_addr)
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{
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char buff[512];
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2008-08-21 17:58:08 +00:00
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char buff2[257];
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2004-04-22 00:10:48 +00:00
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FILE *f;
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int found = 0;
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struct in_addr tmp_addr;
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2007-09-17 08:09:54 +00:00
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2004-04-22 00:10:48 +00:00
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f = fopen("/etc/resolv.conf", "r");
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if (!f)
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return -1;
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2007-10-26 18:42:59 +00:00
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#ifdef DEBUG
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2004-04-22 00:10:48 +00:00
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lprint("IP address of your DNS(s): ");
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2007-10-26 18:42:59 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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while (fgets(buff, 512, f) != NULL) {
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if (sscanf(buff, "nameserver%*[ \t]%256s", buff2) == 1) {
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if (!inet_aton(buff2, &tmp_addr))
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continue;
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if (tmp_addr.s_addr == loopback_addr.s_addr)
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tmp_addr = our_addr;
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/* If it's the first one, set it to dns_addr */
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if (!found)
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*pdns_addr = tmp_addr;
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2007-10-26 18:42:59 +00:00
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#ifdef DEBUG
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2004-04-22 00:10:48 +00:00
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else
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lprint(", ");
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2007-10-26 18:42:59 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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if (++found > 3) {
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2007-10-26 18:42:59 +00:00
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#ifdef DEBUG
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2004-04-22 00:10:48 +00:00
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lprint("(more)");
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2007-10-26 18:42:59 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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break;
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2007-10-26 18:42:59 +00:00
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}
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#ifdef DEBUG
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else
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2004-04-22 00:10:48 +00:00
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lprint("%s", inet_ntoa(tmp_addr));
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2007-10-26 18:42:59 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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}
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}
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2004-07-05 21:18:42 +00:00
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fclose(f);
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2004-04-22 00:10:48 +00:00
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if (!found)
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return -1;
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return 0;
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}
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#endif
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2004-07-12 22:33:07 +00:00
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#ifdef _WIN32
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2007-10-26 19:01:16 +00:00
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static void slirp_cleanup(void)
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2004-07-12 22:33:07 +00:00
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{
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WSACleanup();
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}
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#endif
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2009-01-08 19:27:07 +00:00
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static void slirp_state_save(QEMUFile *f, void *opaque);
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static int slirp_state_load(QEMUFile *f, void *opaque, int version_id);
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2009-06-24 12:42:28 +00:00
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void slirp_init(int restricted, struct in_addr vnetwork,
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struct in_addr vnetmask, struct in_addr vhost,
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const char *vhostname, const char *tftp_path,
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const char *bootfile, struct in_addr vdhcp_start,
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struct in_addr vnameserver)
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2004-04-22 00:10:48 +00:00
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{
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2004-05-04 03:14:47 +00:00
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// debug_init("/tmp/slirp.log", DEBUG_DEFAULT);
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2007-09-17 08:09:54 +00:00
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2004-07-12 22:33:07 +00:00
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#ifdef _WIN32
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2009-06-24 12:42:28 +00:00
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WSADATA Data;
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WSAStartup(MAKEWORD(2,0), &Data);
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atexit(slirp_cleanup);
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2004-07-12 22:33:07 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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link_up = 1;
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2009-03-07 15:32:56 +00:00
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slirp_restrict = restricted;
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2004-04-22 00:10:48 +00:00
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if_init();
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ip_init();
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/* Initialise mbufs *after* setting the MTU */
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m_init();
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/* set default addresses */
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inet_aton("127.0.0.1", &loopback_addr);
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if (get_dns_addr(&dns_addr) < 0) {
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2006-04-16 13:02:00 +00:00
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dns_addr = loopback_addr;
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fprintf (stderr, "Warning: No DNS servers found\n");
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2004-04-22 00:10:48 +00:00
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}
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2009-06-24 12:42:28 +00:00
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vnetwork_addr = vnetwork;
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vnetwork_mask = vnetmask;
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vhost_addr = vhost;
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if (vhostname) {
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pstrcpy(slirp_hostname, sizeof(slirp_hostname), vhostname);
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2009-06-24 12:42:28 +00:00
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}
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2009-06-24 12:42:28 +00:00
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qemu_free(tftp_prefix);
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tftp_prefix = NULL;
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if (tftp_path) {
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tftp_prefix = qemu_strdup(tftp_path);
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}
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qemu_free(bootp_filename);
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bootp_filename = NULL;
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if (bootfile) {
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bootp_filename = qemu_strdup(bootfile);
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}
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2009-06-24 12:42:28 +00:00
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vdhcp_startaddr = vdhcp_start;
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vnameserver_addr = vnameserver;
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2009-06-24 12:42:28 +00:00
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2006-04-23 19:41:17 +00:00
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getouraddr();
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2009-01-08 19:27:07 +00:00
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register_savevm("slirp", 0, 1, slirp_state_save, slirp_state_load, NULL);
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2004-04-22 00:10:48 +00:00
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}
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#define CONN_CANFSEND(so) (((so)->so_state & (SS_FCANTSENDMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
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#define CONN_CANFRCV(so) (((so)->so_state & (SS_FCANTRCVMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
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#define UPD_NFDS(x) if (nfds < (x)) nfds = (x)
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/*
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* curtime kept to an accuracy of 1ms
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*/
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2004-07-12 22:33:07 +00:00
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#ifdef _WIN32
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static void updtime(void)
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{
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struct _timeb tb;
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_ftime(&tb);
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curtime = (u_int)tb.time * (u_int)1000;
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curtime += (u_int)tb.millitm;
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}
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#else
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2004-04-22 00:10:48 +00:00
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static void updtime(void)
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{
|
2009-03-07 15:32:56 +00:00
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gettimeofday(&tt, NULL);
|
2007-09-16 21:08:06 +00:00
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|
2004-04-22 00:10:48 +00:00
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curtime = (u_int)tt.tv_sec * (u_int)1000;
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curtime += (u_int)tt.tv_usec / (u_int)1000;
|
2007-09-16 21:08:06 +00:00
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2004-04-22 00:10:48 +00:00
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if ((tt.tv_usec % 1000) >= 500)
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curtime++;
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}
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2004-07-12 22:33:07 +00:00
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#endif
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2004-04-22 00:10:48 +00:00
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2007-09-16 21:08:06 +00:00
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void slirp_select_fill(int *pnfds,
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2004-04-22 00:10:48 +00:00
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fd_set *readfds, fd_set *writefds, fd_set *xfds)
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|
{
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struct socket *so, *so_next;
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struct timeval timeout;
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int nfds;
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int tmp_time;
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/* fail safe */
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global_readfds = NULL;
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global_writefds = NULL;
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global_xfds = NULL;
|
2007-09-17 08:09:54 +00:00
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|
2004-04-22 00:10:48 +00:00
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|
nfds = *pnfds;
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|
|
|
/*
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|
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|
* First, TCP sockets
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|
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|
*/
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|
do_slowtimo = 0;
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|
|
|
if (link_up) {
|
2007-09-16 21:08:06 +00:00
|
|
|
/*
|
2004-04-22 00:10:48 +00:00
|
|
|
* *_slowtimo needs calling if there are IP fragments
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|
|
* in the fragment queue, or there are TCP connections active
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|
|
|
*/
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|
|
|
do_slowtimo = ((tcb.so_next != &tcb) ||
|
2009-01-13 19:48:42 +00:00
|
|
|
(&ipq.ip_link != ipq.ip_link.next));
|
2007-09-17 08:09:54 +00:00
|
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|
2004-04-22 00:10:48 +00:00
|
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|
for (so = tcb.so_next; so != &tcb; so = so_next) {
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|
so_next = so->so_next;
|
2007-09-17 08:09:54 +00:00
|
|
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|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* See if we need a tcp_fasttimo
|
|
|
|
*/
|
|
|
|
if (time_fasttimo == 0 && so->so_tcpcb->t_flags & TF_DELACK)
|
|
|
|
time_fasttimo = curtime; /* Flag when we want a fasttimo */
|
2007-09-17 08:09:54 +00:00
|
|
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|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* 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;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Set for reading sockets which are accepting
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_FACCEPTCONN) {
|
|
|
|
FD_SET(so->s, readfds);
|
|
|
|
UPD_NFDS(so->s);
|
|
|
|
continue;
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Set for writing sockets which are connecting
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
|
|
|
FD_SET(so->s, writefds);
|
|
|
|
UPD_NFDS(so->s);
|
|
|
|
continue;
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* 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) {
|
|
|
|
FD_SET(so->s, writefds);
|
|
|
|
UPD_NFDS(so->s);
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* 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))) {
|
|
|
|
FD_SET(so->s, readfds);
|
|
|
|
FD_SET(so->s, xfds);
|
|
|
|
UPD_NFDS(so->s);
|
|
|
|
}
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* UDP sockets
|
|
|
|
*/
|
|
|
|
for (so = udb.so_next; so != &udb; so = so_next) {
|
|
|
|
so_next = so->so_next;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* See if it's timed out
|
|
|
|
*/
|
|
|
|
if (so->so_expire) {
|
|
|
|
if (so->so_expire <= curtime) {
|
|
|
|
udp_detach(so);
|
|
|
|
continue;
|
|
|
|
} else
|
|
|
|
do_slowtimo = 1; /* Let socket expire */
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* 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) {
|
|
|
|
FD_SET(so->s, readfds);
|
|
|
|
UPD_NFDS(so->s);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-09-16 21:08:06 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Setup timeout to use minimum CPU usage, especially when idle
|
|
|
|
*/
|
2007-09-16 21:08:06 +00:00
|
|
|
|
|
|
|
/*
|
2004-04-22 00:10:48 +00:00
|
|
|
* First, see the timeout needed by *timo
|
|
|
|
*/
|
|
|
|
timeout.tv_sec = 0;
|
|
|
|
timeout.tv_usec = -1;
|
|
|
|
/*
|
|
|
|
* If a slowtimo is needed, set timeout to 500ms from the last
|
|
|
|
* slow timeout. If a fast timeout is needed, set timeout within
|
|
|
|
* 200ms of when it was requested.
|
|
|
|
*/
|
|
|
|
if (do_slowtimo) {
|
|
|
|
/* XXX + 10000 because some select()'s aren't that accurate */
|
|
|
|
timeout.tv_usec = ((500 - (curtime - last_slowtimo)) * 1000) + 10000;
|
|
|
|
if (timeout.tv_usec < 0)
|
|
|
|
timeout.tv_usec = 0;
|
|
|
|
else if (timeout.tv_usec > 510000)
|
|
|
|
timeout.tv_usec = 510000;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* Can only fasttimo if we also slowtimo */
|
|
|
|
if (time_fasttimo) {
|
|
|
|
tmp_time = (200 - (curtime - time_fasttimo)) * 1000;
|
|
|
|
if (tmp_time < 0)
|
|
|
|
tmp_time = 0;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* Choose the smallest of the 2 */
|
|
|
|
if (tmp_time < timeout.tv_usec)
|
|
|
|
timeout.tv_usec = (u_int)tmp_time;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*pnfds = nfds;
|
2007-09-16 21:08:06 +00:00
|
|
|
}
|
2004-04-22 00:10:48 +00:00
|
|
|
|
|
|
|
void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds)
|
|
|
|
{
|
|
|
|
struct socket *so, *so_next;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
global_readfds = readfds;
|
|
|
|
global_writefds = writefds;
|
|
|
|
global_xfds = xfds;
|
|
|
|
|
|
|
|
/* Update time */
|
|
|
|
updtime();
|
2007-09-16 21:08:06 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
2007-09-16 21:08:06 +00:00
|
|
|
* See if anything has timed out
|
2004-04-22 00:10:48 +00:00
|
|
|
*/
|
|
|
|
if (link_up) {
|
2005-09-03 10:45:09 +00:00
|
|
|
if (time_fasttimo && ((curtime - time_fasttimo) >= 2)) {
|
2004-04-22 00:10:48 +00:00
|
|
|
tcp_fasttimo();
|
|
|
|
time_fasttimo = 0;
|
|
|
|
}
|
|
|
|
if (do_slowtimo && ((curtime - last_slowtimo) >= 499)) {
|
|
|
|
ip_slowtimo();
|
|
|
|
tcp_slowtimo();
|
|
|
|
last_slowtimo = curtime;
|
|
|
|
}
|
|
|
|
}
|
2007-09-16 21:08:06 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Check sockets
|
|
|
|
*/
|
|
|
|
if (link_up) {
|
|
|
|
/*
|
|
|
|
* Check TCP sockets
|
|
|
|
*/
|
|
|
|
for (so = tcb.so_next; so != &tcb; so = so_next) {
|
|
|
|
so_next = so->so_next;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* FD_ISSET is meaningless on these sockets
|
|
|
|
* (and they can crash the program)
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_NOFDREF || so->s == -1)
|
|
|
|
continue;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Check for URG data
|
|
|
|
* This will soread as well, so no need to
|
|
|
|
* test for readfds below if this succeeds
|
|
|
|
*/
|
|
|
|
if (FD_ISSET(so->s, xfds))
|
|
|
|
sorecvoob(so);
|
|
|
|
/*
|
|
|
|
* Check sockets for reading
|
|
|
|
*/
|
|
|
|
else if (FD_ISSET(so->s, readfds)) {
|
|
|
|
/*
|
|
|
|
* Check for incoming connections
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_FACCEPTCONN) {
|
|
|
|
tcp_connect(so);
|
|
|
|
continue;
|
|
|
|
} /* else */
|
|
|
|
ret = soread(so);
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* Output it if we read something */
|
|
|
|
if (ret > 0)
|
|
|
|
tcp_output(sototcpcb(so));
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Check sockets for writing
|
|
|
|
*/
|
|
|
|
if (FD_ISSET(so->s, writefds)) {
|
|
|
|
/*
|
|
|
|
* Check for non-blocking, still-connecting sockets
|
|
|
|
*/
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
|
|
|
/* Connected */
|
|
|
|
so->so_state &= ~SS_ISFCONNECTING;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2009-05-21 01:26:23 +00:00
|
|
|
ret = send(so->s, (const void *) &ret, 0, 0);
|
2004-04-22 00:10:48 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
/* XXXXX Must fix, zero bytes is a NOP */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN)
|
|
|
|
continue;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* else failed */
|
|
|
|
so->so_state = SS_NOFDREF;
|
|
|
|
}
|
|
|
|
/* else so->so_state &= ~SS_ISFCONNECTING; */
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Continue tcp_input
|
|
|
|
*/
|
|
|
|
tcp_input((struct mbuf *)NULL, sizeof(struct ip), so);
|
|
|
|
/* continue; */
|
|
|
|
} else
|
|
|
|
ret = sowrite(so);
|
|
|
|
/*
|
2007-09-16 21:08:06 +00:00
|
|
|
* XXXXX If we wrote something (a lot), there
|
2004-04-22 00:10:48 +00:00
|
|
|
* could be a need for a window update.
|
|
|
|
* In the worst case, the remote will send
|
|
|
|
* a window probe to get things going again
|
|
|
|
*/
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Probe a still-connecting, non-blocking socket
|
|
|
|
* to check if it's still alive
|
|
|
|
*/
|
|
|
|
#ifdef PROBE_CONN
|
|
|
|
if (so->so_state & SS_ISFCONNECTING) {
|
2004-10-07 23:27:35 +00:00
|
|
|
ret = recv(so->s, (char *)&ret, 0,0);
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
/* XXX */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN)
|
|
|
|
continue; /* Still connecting, continue */
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* else failed */
|
|
|
|
so->so_state = SS_NOFDREF;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/* tcp_input will take care of it */
|
|
|
|
} else {
|
2004-10-07 23:27:35 +00:00
|
|
|
ret = send(so->s, &ret, 0,0);
|
2004-04-22 00:10:48 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
/* XXX */
|
|
|
|
if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
|
|
|
errno == EINPROGRESS || errno == ENOTCONN)
|
|
|
|
continue;
|
|
|
|
/* else failed */
|
|
|
|
so->so_state = SS_NOFDREF;
|
|
|
|
} else
|
|
|
|
so->so_state &= ~SS_ISFCONNECTING;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
}
|
|
|
|
tcp_input((struct mbuf *)NULL, sizeof(struct ip),so);
|
|
|
|
} /* SS_ISFCONNECTING */
|
|
|
|
#endif
|
|
|
|
}
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* Now UDP sockets.
|
|
|
|
* Incoming packets are sent straight away, they're not buffered.
|
|
|
|
* Incoming UDP data isn't buffered either.
|
|
|
|
*/
|
|
|
|
for (so = udb.so_next; so != &udb; so = so_next) {
|
|
|
|
so_next = so->so_next;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
if (so->s != -1 && FD_ISSET(so->s, readfds)) {
|
|
|
|
sorecvfrom(so);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-09-16 21:08:06 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
/*
|
|
|
|
* See if we can start outputting
|
|
|
|
*/
|
|
|
|
if (if_queued && link_up)
|
|
|
|
if_start();
|
2004-10-07 23:27:35 +00:00
|
|
|
|
|
|
|
/* clear global file descriptor sets.
|
|
|
|
* these reside on the stack in vl.c
|
|
|
|
* so they're unusable if we're not in
|
|
|
|
* slirp_select_fill or slirp_select_poll.
|
|
|
|
*/
|
|
|
|
global_readfds = NULL;
|
|
|
|
global_writefds = NULL;
|
|
|
|
global_xfds = NULL;
|
2004-04-22 00:10:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#define ETH_ALEN 6
|
|
|
|
#define ETH_HLEN 14
|
|
|
|
|
|
|
|
#define ETH_P_IP 0x0800 /* Internet Protocol packet */
|
|
|
|
#define ETH_P_ARP 0x0806 /* Address Resolution packet */
|
|
|
|
|
|
|
|
#define ARPOP_REQUEST 1 /* ARP request */
|
|
|
|
#define ARPOP_REPLY 2 /* ARP reply */
|
|
|
|
|
2007-09-16 21:08:06 +00:00
|
|
|
struct ethhdr
|
2004-04-22 00:10:48 +00:00
|
|
|
{
|
|
|
|
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
|
|
|
|
unsigned char h_source[ETH_ALEN]; /* source ether addr */
|
|
|
|
unsigned short h_proto; /* packet type ID field */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct arphdr
|
|
|
|
{
|
|
|
|
unsigned short ar_hrd; /* format of hardware address */
|
|
|
|
unsigned short ar_pro; /* format of protocol address */
|
|
|
|
unsigned char ar_hln; /* length of hardware address */
|
|
|
|
unsigned char ar_pln; /* length of protocol address */
|
|
|
|
unsigned short ar_op; /* ARP opcode (command) */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Ethernet looks like this : This bit is variable sized however...
|
|
|
|
*/
|
|
|
|
unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
|
2009-06-24 12:42:28 +00:00
|
|
|
uint32_t ar_sip; /* sender IP address */
|
2004-04-22 00:10:48 +00:00
|
|
|
unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
|
2009-06-24 12:42:28 +00:00
|
|
|
uint32_t ar_tip ; /* target IP address */
|
|
|
|
} __attribute__((packed));
|
2004-04-22 00:10:48 +00:00
|
|
|
|
2008-08-17 20:26:25 +00:00
|
|
|
static void arp_input(const uint8_t *pkt, int pkt_len)
|
2004-04-22 00:10:48 +00:00
|
|
|
{
|
|
|
|
struct ethhdr *eh = (struct ethhdr *)pkt;
|
|
|
|
struct arphdr *ah = (struct arphdr *)(pkt + ETH_HLEN);
|
|
|
|
uint8_t arp_reply[ETH_HLEN + sizeof(struct arphdr)];
|
|
|
|
struct ethhdr *reh = (struct ethhdr *)arp_reply;
|
|
|
|
struct arphdr *rah = (struct arphdr *)(arp_reply + ETH_HLEN);
|
|
|
|
int ar_op;
|
2004-09-05 23:10:26 +00:00
|
|
|
struct ex_list *ex_ptr;
|
2004-04-22 00:10:48 +00:00
|
|
|
|
|
|
|
ar_op = ntohs(ah->ar_op);
|
|
|
|
switch(ar_op) {
|
|
|
|
case ARPOP_REQUEST:
|
2009-06-24 12:42:28 +00:00
|
|
|
if ((ah->ar_tip & vnetwork_mask.s_addr) == vnetwork_addr.s_addr) {
|
|
|
|
if (ah->ar_tip == vnameserver_addr.s_addr ||
|
|
|
|
ah->ar_tip == vhost_addr.s_addr)
|
2004-09-05 23:10:26 +00:00
|
|
|
goto arp_ok;
|
|
|
|
for (ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
2009-06-24 12:42:28 +00:00
|
|
|
if (ex_ptr->ex_addr.s_addr == ah->ar_tip)
|
2004-09-05 23:10:26 +00:00
|
|
|
goto arp_ok;
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
arp_ok:
|
2004-04-22 00:10:48 +00:00
|
|
|
/* XXX: make an ARP request to have the client address */
|
|
|
|
memcpy(client_ethaddr, eh->h_source, ETH_ALEN);
|
|
|
|
|
|
|
|
/* ARP request for alias/dns mac address */
|
|
|
|
memcpy(reh->h_dest, pkt + ETH_ALEN, ETH_ALEN);
|
2009-06-24 12:42:28 +00:00
|
|
|
memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&reh->h_source[2], &ah->ar_tip, 4);
|
2004-04-22 00:10:48 +00:00
|
|
|
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 12:42:28 +00:00
|
|
|
rah->ar_sip = ah->ar_tip;
|
2004-04-22 00:10:48 +00:00
|
|
|
memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN);
|
2009-06-24 12:42:28 +00:00
|
|
|
rah->ar_tip = ah->ar_sip;
|
2004-04-22 00:10:48 +00:00
|
|
|
slirp_output(arp_reply, sizeof(arp_reply));
|
|
|
|
}
|
|
|
|
break;
|
2008-10-17 17:28:58 +00:00
|
|
|
case ARPOP_REPLY:
|
|
|
|
/* reply to request of client mac address ? */
|
|
|
|
if (!memcmp(client_ethaddr, zero_ethaddr, ETH_ALEN) &&
|
2009-06-24 12:42:28 +00:00
|
|
|
ah->ar_sip == client_ipaddr.s_addr) {
|
2008-10-17 17:28:58 +00:00
|
|
|
memcpy(client_ethaddr, ah->ar_sha, ETH_ALEN);
|
|
|
|
}
|
|
|
|
break;
|
2004-04-22 00:10:48 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void slirp_input(const uint8_t *pkt, int pkt_len)
|
|
|
|
{
|
|
|
|
struct mbuf *m;
|
|
|
|
int proto;
|
|
|
|
|
|
|
|
if (pkt_len < ETH_HLEN)
|
|
|
|
return;
|
2007-09-17 08:09:54 +00:00
|
|
|
|
2004-04-22 00:10:48 +00:00
|
|
|
proto = ntohs(*(uint16_t *)(pkt + 12));
|
|
|
|
switch(proto) {
|
|
|
|
case ETH_P_ARP:
|
|
|
|
arp_input(pkt, pkt_len);
|
|
|
|
break;
|
|
|
|
case ETH_P_IP:
|
|
|
|
m = m_get();
|
|
|
|
if (!m)
|
|
|
|
return;
|
2006-05-10 19:21:58 +00:00
|
|
|
/* Note: we add to align the IP header */
|
2008-12-07 18:15:23 +00:00
|
|
|
if (M_FREEROOM(m) < pkt_len + 2) {
|
|
|
|
m_inc(m, pkt_len + 2);
|
|
|
|
}
|
2006-05-10 19:21:58 +00:00
|
|
|
m->m_len = pkt_len + 2;
|
|
|
|
memcpy(m->m_data + 2, pkt, pkt_len);
|
2004-04-22 00:10:48 +00:00
|
|
|
|
2006-05-10 19:21:58 +00:00
|
|
|
m->m_data += 2 + ETH_HLEN;
|
|
|
|
m->m_len -= 2 + ETH_HLEN;
|
2004-04-22 00:10:48 +00:00
|
|
|
|
|
|
|
ip_input(m);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* output the IP packet to the ethernet device */
|
|
|
|
void if_encap(const uint8_t *ip_data, int ip_data_len)
|
|
|
|
{
|
|
|
|
uint8_t buf[1600];
|
|
|
|
struct ethhdr *eh = (struct ethhdr *)buf;
|
|
|
|
|
|
|
|
if (ip_data_len + ETH_HLEN > sizeof(buf))
|
|
|
|
return;
|
2008-10-17 17:28:58 +00:00
|
|
|
|
|
|
|
if (!memcmp(client_ethaddr, zero_ethaddr, ETH_ALEN)) {
|
|
|
|
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);
|
|
|
|
const struct ip *iph = (const struct ip *)ip_data;
|
|
|
|
|
|
|
|
/* If the client addr is not known, there is no point in
|
|
|
|
sending the packet to it. Normally the sender should have
|
|
|
|
done an ARP request to get its MAC address. Here we do it
|
|
|
|
in place of sending the packet and we hope that the sender
|
|
|
|
will retry sending its packet. */
|
|
|
|
memset(reh->h_dest, 0xff, ETH_ALEN);
|
2009-06-24 12:42:28 +00:00
|
|
|
memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&reh->h_source[2], &vhost_addr, 4);
|
2008-10-17 17:28:58 +00:00
|
|
|
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_REQUEST);
|
|
|
|
/* source hw addr */
|
2009-06-24 12:42:28 +00:00
|
|
|
memcpy(rah->ar_sha, special_ethaddr, ETH_ALEN - 4);
|
|
|
|
memcpy(&rah->ar_sha[2], &vhost_addr, 4);
|
2008-10-17 17:28:58 +00:00
|
|
|
/* source IP */
|
2009-06-24 12:42:28 +00:00
|
|
|
rah->ar_sip = vhost_addr.s_addr;
|
2008-10-17 17:28:58 +00:00
|
|
|
/* target hw addr (none) */
|
|
|
|
memset(rah->ar_tha, 0, ETH_ALEN);
|
|
|
|
/* target IP */
|
2009-06-24 12:42:28 +00:00
|
|
|
rah->ar_tip = iph->ip_dst.s_addr;
|
2008-10-17 17:28:58 +00:00
|
|
|
client_ipaddr = iph->ip_dst;
|
|
|
|
slirp_output(arp_req, sizeof(arp_req));
|
|
|
|
} else {
|
|
|
|
memcpy(eh->h_dest, client_ethaddr, ETH_ALEN);
|
2009-06-24 12:42:28 +00:00
|
|
|
memcpy(eh->h_source, special_ethaddr, ETH_ALEN - 4);
|
2008-10-17 17:28:58 +00:00
|
|
|
/* XXX: not correct */
|
2009-06-24 12:42:28 +00:00
|
|
|
memcpy(&eh->h_source[2], &vhost_addr, 4);
|
2008-10-17 17:28:58 +00:00
|
|
|
eh->h_proto = htons(ETH_P_IP);
|
|
|
|
memcpy(buf + sizeof(struct ethhdr), ip_data, ip_data_len);
|
|
|
|
slirp_output(buf, ip_data_len + ETH_HLEN);
|
|
|
|
}
|
2004-04-22 00:10:48 +00:00
|
|
|
}
|
2004-08-25 22:12:49 +00:00
|
|
|
|
2009-05-26 11:03:26 +00:00
|
|
|
/* Unlistens a redirection
|
|
|
|
*
|
|
|
|
* Return value: number of redirs removed */
|
2009-06-24 12:42:28 +00:00
|
|
|
int slirp_remove_hostfwd(int is_udp, int host_port)
|
2009-05-26 11:03:26 +00:00
|
|
|
{
|
|
|
|
struct socket *so;
|
|
|
|
struct socket *head = (is_udp ? &udb : &tcb);
|
2009-06-24 12:42:28 +00:00
|
|
|
struct sockaddr_in addr;
|
|
|
|
int port = htons(host_port);
|
|
|
|
socklen_t addr_len;
|
2009-05-26 11:03:26 +00:00
|
|
|
int n = 0;
|
|
|
|
|
|
|
|
loop_again:
|
|
|
|
for (so = head->so_next; so != head; so = so->so_next) {
|
2009-06-24 12:42:28 +00:00
|
|
|
addr_len = sizeof(addr);
|
|
|
|
if (getsockname(so->s, (struct sockaddr *)&addr, &addr_len) == 0 &&
|
|
|
|
addr.sin_port == port) {
|
2009-05-26 11:03:26 +00:00
|
|
|
close(so->s);
|
|
|
|
sofree(so);
|
|
|
|
n++;
|
|
|
|
goto loop_again;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return n;
|
|
|
|
}
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
int slirp_add_hostfwd(int is_udp, int host_port,
|
|
|
|
struct in_addr guest_addr, int guest_port)
|
2004-08-25 22:12:49 +00:00
|
|
|
{
|
2009-06-24 12:42:28 +00:00
|
|
|
if (!guest_addr.s_addr) {
|
|
|
|
guest_addr = vdhcp_startaddr;
|
|
|
|
}
|
2004-08-25 22:12:49 +00:00
|
|
|
if (is_udp) {
|
2007-09-16 21:08:06 +00:00
|
|
|
if (!udp_listen(htons(host_port), guest_addr.s_addr,
|
2004-08-25 22:12:49 +00:00
|
|
|
htons(guest_port), 0))
|
|
|
|
return -1;
|
|
|
|
} else {
|
2007-09-16 21:08:06 +00:00
|
|
|
if (!solisten(htons(host_port), guest_addr.s_addr,
|
2004-08-25 22:12:49 +00:00
|
|
|
htons(guest_port), 0))
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
2004-09-05 23:10:26 +00:00
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
int slirp_add_exec(int do_pty, const void *args, struct in_addr guest_addr,
|
|
|
|
int guest_port)
|
2004-09-05 23:10:26 +00:00
|
|
|
{
|
2009-06-24 12:42:28 +00:00
|
|
|
if (!guest_addr.s_addr) {
|
|
|
|
guest_addr.s_addr =
|
|
|
|
vnetwork_addr.s_addr | (htonl(0x0204) & ~vnetwork_mask.s_addr);
|
|
|
|
}
|
2009-06-24 12:42:28 +00:00
|
|
|
if ((guest_addr.s_addr & vnetwork_mask.s_addr) != vnetwork_addr.s_addr ||
|
|
|
|
guest_addr.s_addr == vhost_addr.s_addr ||
|
|
|
|
guest_addr.s_addr == vnameserver_addr.s_addr) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return add_exec(&exec_list, do_pty, (char *)args, guest_addr,
|
|
|
|
htons(guest_port));
|
2004-09-05 23:10:26 +00:00
|
|
|
}
|
2009-01-08 19:18:21 +00:00
|
|
|
|
|
|
|
ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags)
|
|
|
|
{
|
|
|
|
if (so->s == -1 && so->extra) {
|
|
|
|
qemu_chr_write(so->extra, buf, len);
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
return send(so->s, buf, len, flags);
|
|
|
|
}
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
static struct socket *
|
|
|
|
slirp_find_ctl_socket(struct in_addr guest_addr, int guest_port)
|
2009-01-08 19:18:21 +00:00
|
|
|
{
|
2009-06-24 12:42:28 +00:00
|
|
|
struct socket *so;
|
2009-01-08 19:18:21 +00:00
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
for (so = tcb.so_next; so != &tcb; so = so->so_next) {
|
|
|
|
if (so->so_faddr.s_addr == guest_addr.s_addr &&
|
|
|
|
htons(so->so_fport) == guest_port) {
|
|
|
|
return so;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
2009-01-08 19:18:21 +00:00
|
|
|
}
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
size_t slirp_socket_can_recv(struct in_addr guest_addr, int guest_port)
|
2009-01-08 19:18:21 +00:00
|
|
|
{
|
|
|
|
struct iovec iov[2];
|
|
|
|
struct socket *so;
|
|
|
|
|
|
|
|
if (!link_up)
|
|
|
|
return 0;
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
so = slirp_find_ctl_socket(guest_addr, guest_port);
|
2009-01-08 19:18:21 +00:00
|
|
|
|
|
|
|
if (!so || so->so_state & SS_NOFDREF)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!CONN_CANFRCV(so) || so->so_snd.sb_cc >= (so->so_snd.sb_datalen/2))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return sopreprbuf(so, iov, NULL);
|
|
|
|
}
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
void slirp_socket_recv(struct in_addr guest_addr, int guest_port,
|
|
|
|
const uint8_t *buf, int size)
|
2009-01-08 19:18:21 +00:00
|
|
|
{
|
|
|
|
int ret;
|
2009-06-24 12:42:28 +00:00
|
|
|
struct socket *so = slirp_find_ctl_socket(guest_addr, guest_port);
|
|
|
|
|
2009-01-08 19:18:21 +00:00
|
|
|
if (!so)
|
|
|
|
return;
|
|
|
|
|
2009-01-12 17:51:06 +00:00
|
|
|
ret = soreadbuf(so, (const char *)buf, size);
|
2009-01-08 19:18:21 +00:00
|
|
|
|
|
|
|
if (ret > 0)
|
|
|
|
tcp_output(sototcpcb(so));
|
|
|
|
}
|
2009-01-08 19:27:07 +00:00
|
|
|
|
|
|
|
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);
|
|
|
|
qemu_put_be32(f, so->so_faddr.s_addr);
|
|
|
|
qemu_put_be32(f, so->so_laddr.s_addr);
|
|
|
|
qemu_put_be16(f, so->so_fport);
|
|
|
|
qemu_put_be16(f, so->so_lport);
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void slirp_state_save(QEMUFile *f, void *opaque)
|
|
|
|
{
|
|
|
|
struct ex_list *ex_ptr;
|
|
|
|
|
|
|
|
for (ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
|
|
|
|
if (ex_ptr->ex_pty == 3) {
|
|
|
|
struct socket *so;
|
|
|
|
so = slirp_find_ctl_socket(ex_ptr->ex_addr, ntohs(ex_ptr->ex_fport));
|
|
|
|
if (!so)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
qemu_put_byte(f, 42);
|
|
|
|
slirp_socket_save(f, so);
|
|
|
|
}
|
|
|
|
qemu_put_byte(f, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
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);
|
|
|
|
so->so_faddr.s_addr = qemu_get_be32(f);
|
|
|
|
so->so_laddr.s_addr = qemu_get_be32(f);
|
|
|
|
so->so_fport = qemu_get_be16(f);
|
|
|
|
so->so_lport = qemu_get_be16(f);
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int slirp_state_load(QEMUFile *f, void *opaque, int version_id)
|
|
|
|
{
|
|
|
|
struct ex_list *ex_ptr;
|
|
|
|
int r;
|
|
|
|
|
|
|
|
while ((r = qemu_get_byte(f))) {
|
|
|
|
int ret;
|
|
|
|
struct socket *so = socreate();
|
|
|
|
|
|
|
|
if (!so)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
ret = slirp_socket_load(f, so);
|
|
|
|
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2009-06-24 12:42:28 +00:00
|
|
|
if ((so->so_faddr.s_addr & vnetwork_mask.s_addr) !=
|
|
|
|
vnetwork_addr.s_addr) {
|
2009-01-08 19:27:07 +00:00
|
|
|
return -EINVAL;
|
2009-06-24 12:42:28 +00:00
|
|
|
}
|
|
|
|
for (ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
2009-01-08 19:27:07 +00:00
|
|
|
if (ex_ptr->ex_pty == 3 &&
|
2009-06-24 12:42:28 +00:00
|
|
|
so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr &&
|
|
|
|
so->so_fport == ex_ptr->ex_fport) {
|
2009-01-08 19:27:07 +00:00
|
|
|
break;
|
2009-06-24 12:42:28 +00:00
|
|
|
}
|
|
|
|
}
|
2009-01-08 19:27:07 +00:00
|
|
|
if (!ex_ptr)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-01-12 17:51:06 +00:00
|
|
|
so->extra = (void *)ex_ptr->ex_exec;
|
2009-01-08 19:27:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|