root / slirp / slirp.c @ 0ef654e3
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1 | d75a0b97 | bellard | /*
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2 | d75a0b97 | bellard | * libslirp glue
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3 | d75a0b97 | bellard | *
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4 | d75a0b97 | bellard | * Copyright (c) 2004-2008 Fabrice Bellard
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5 | d75a0b97 | bellard | *
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6 | d75a0b97 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | d75a0b97 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | d75a0b97 | bellard | * in the Software without restriction, including without limitation the rights
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9 | d75a0b97 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | d75a0b97 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | d75a0b97 | bellard | * furnished to do so, subject to the following conditions:
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12 | d75a0b97 | bellard | *
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13 | d75a0b97 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | d75a0b97 | bellard | * all copies or substantial portions of the Software.
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15 | d75a0b97 | bellard | *
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16 | d75a0b97 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | d75a0b97 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | d75a0b97 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | d75a0b97 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | d75a0b97 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | d75a0b97 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | d75a0b97 | bellard | * THE SOFTWARE.
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23 | d75a0b97 | bellard | */
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24 | e1c5a2b3 | aliguori | #include "qemu-common.h" |
25 | aaf10d9d | Ed Swierk | #include "qemu-timer.h" |
26 | 0580ac91 | blueswir1 | #include "qemu-char.h" |
27 | f0cbd3ec | bellard | #include "slirp.h" |
28 | 062e5527 | aliguori | #include "hw/hw.h" |
29 | f0cbd3ec | bellard | |
30 | f0cbd3ec | bellard | /* host loopback address */
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31 | f0cbd3ec | bellard | struct in_addr loopback_addr;
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32 | f0cbd3ec | bellard | |
33 | a13a4126 | Jan Kiszka | /* emulated hosts use the MAC addr 52:55:IP:IP:IP:IP */
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34 | 1a0ca1e1 | Fabien Chouteau | static const uint8_t special_ethaddr[ETH_ALEN] = { |
35 | a13a4126 | Jan Kiszka | 0x52, 0x55, 0x00, 0x00, 0x00, 0x00 |
36 | f0cbd3ec | bellard | }; |
37 | f0cbd3ec | bellard | |
38 | 1a0ca1e1 | Fabien Chouteau | static const uint8_t zero_ethaddr[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 }; |
39 | f0cbd3ec | bellard | |
40 | f0cbd3ec | bellard | /* XXX: suppress those select globals */
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41 | f0cbd3ec | bellard | fd_set *global_readfds, *global_writefds, *global_xfds; |
42 | f0cbd3ec | bellard | |
43 | f1d99bbd | Jan Kiszka | u_int curtime; |
44 | f1d99bbd | Jan Kiszka | static u_int time_fasttimo, last_slowtimo;
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45 | f1d99bbd | Jan Kiszka | static int do_slowtimo; |
46 | f1d99bbd | Jan Kiszka | |
47 | 72cf2d4f | Blue Swirl | static QTAILQ_HEAD(slirp_instances, Slirp) slirp_instances =
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48 | 72cf2d4f | Blue Swirl | QTAILQ_HEAD_INITIALIZER(slirp_instances); |
49 | 115defd1 | pbrook | |
50 | 9e3a95ef | Stefan Weil | static struct in_addr dns_addr; |
51 | 9e3a95ef | Stefan Weil | static u_int dns_addr_time;
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52 | df7a86ed | Ed Swierk | |
53 | f0cbd3ec | bellard | #ifdef _WIN32
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54 | f0cbd3ec | bellard | |
55 | df7a86ed | Ed Swierk | int get_dns_addr(struct in_addr *pdns_addr) |
56 | f0cbd3ec | bellard | { |
57 | 379ff53d | bellard | FIXED_INFO *FixedInfo=NULL;
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58 | 379ff53d | bellard | ULONG BufLen; |
59 | 379ff53d | bellard | DWORD ret; |
60 | 379ff53d | bellard | IP_ADDR_STRING *pIPAddr; |
61 | 379ff53d | bellard | struct in_addr tmp_addr;
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62 | 3b46e624 | ths | |
63 | df7a86ed | Ed Swierk | if (dns_addr.s_addr != 0 && (curtime - dns_addr_time) < 1000) { |
64 | df7a86ed | Ed Swierk | *pdns_addr = dns_addr; |
65 | df7a86ed | Ed Swierk | return 0; |
66 | df7a86ed | Ed Swierk | } |
67 | df7a86ed | Ed Swierk | |
68 | 379ff53d | bellard | FixedInfo = (FIXED_INFO *)GlobalAlloc(GPTR, sizeof(FIXED_INFO));
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69 | 379ff53d | bellard | BufLen = sizeof(FIXED_INFO);
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70 | 3b46e624 | ths | |
71 | 379ff53d | bellard | if (ERROR_BUFFER_OVERFLOW == GetNetworkParams(FixedInfo, &BufLen)) {
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72 | 379ff53d | bellard | if (FixedInfo) {
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73 | 379ff53d | bellard | GlobalFree(FixedInfo); |
74 | 379ff53d | bellard | FixedInfo = NULL;
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75 | 379ff53d | bellard | } |
76 | 379ff53d | bellard | FixedInfo = GlobalAlloc(GPTR, BufLen); |
77 | 379ff53d | bellard | } |
78 | 5fafdf24 | ths | |
79 | 379ff53d | bellard | if ((ret = GetNetworkParams(FixedInfo, &BufLen)) != ERROR_SUCCESS) {
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80 | 379ff53d | bellard | printf("GetNetworkParams failed. ret = %08x\n", (u_int)ret );
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81 | 379ff53d | bellard | if (FixedInfo) {
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82 | 379ff53d | bellard | GlobalFree(FixedInfo); |
83 | 379ff53d | bellard | FixedInfo = NULL;
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84 | 379ff53d | bellard | } |
85 | 379ff53d | bellard | return -1; |
86 | 379ff53d | bellard | } |
87 | 3b46e624 | ths | |
88 | 379ff53d | bellard | pIPAddr = &(FixedInfo->DnsServerList); |
89 | 379ff53d | bellard | inet_aton(pIPAddr->IpAddress.String, &tmp_addr); |
90 | 379ff53d | bellard | *pdns_addr = tmp_addr; |
91 | df7a86ed | Ed Swierk | dns_addr = tmp_addr; |
92 | df7a86ed | Ed Swierk | dns_addr_time = curtime; |
93 | 379ff53d | bellard | if (FixedInfo) {
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94 | 379ff53d | bellard | GlobalFree(FixedInfo); |
95 | 379ff53d | bellard | FixedInfo = NULL;
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96 | 379ff53d | bellard | } |
97 | 379ff53d | bellard | return 0; |
98 | f0cbd3ec | bellard | } |
99 | f0cbd3ec | bellard | |
100 | df461894 | Jan Kiszka | static void winsock_cleanup(void) |
101 | df461894 | Jan Kiszka | { |
102 | df461894 | Jan Kiszka | WSACleanup(); |
103 | df461894 | Jan Kiszka | } |
104 | df461894 | Jan Kiszka | |
105 | f0cbd3ec | bellard | #else
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106 | f0cbd3ec | bellard | |
107 | 1e6eec8b | Blue Swirl | static struct stat dns_addr_stat; |
108 | df7a86ed | Ed Swierk | |
109 | df7a86ed | Ed Swierk | int get_dns_addr(struct in_addr *pdns_addr) |
110 | f0cbd3ec | bellard | { |
111 | f0cbd3ec | bellard | char buff[512]; |
112 | 363a37d5 | blueswir1 | char buff2[257]; |
113 | f0cbd3ec | bellard | FILE *f; |
114 | f0cbd3ec | bellard | int found = 0; |
115 | f0cbd3ec | bellard | struct in_addr tmp_addr;
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116 | 3b46e624 | ths | |
117 | df7a86ed | Ed Swierk | if (dns_addr.s_addr != 0) { |
118 | df7a86ed | Ed Swierk | struct stat old_stat;
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119 | df7a86ed | Ed Swierk | if ((curtime - dns_addr_time) < 1000) { |
120 | df7a86ed | Ed Swierk | *pdns_addr = dns_addr; |
121 | df7a86ed | Ed Swierk | return 0; |
122 | df7a86ed | Ed Swierk | } |
123 | df7a86ed | Ed Swierk | old_stat = dns_addr_stat; |
124 | df7a86ed | Ed Swierk | if (stat("/etc/resolv.conf", &dns_addr_stat) != 0) |
125 | df7a86ed | Ed Swierk | return -1; |
126 | df7a86ed | Ed Swierk | if ((dns_addr_stat.st_dev == old_stat.st_dev)
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127 | df7a86ed | Ed Swierk | && (dns_addr_stat.st_ino == old_stat.st_ino) |
128 | df7a86ed | Ed Swierk | && (dns_addr_stat.st_size == old_stat.st_size) |
129 | df7a86ed | Ed Swierk | && (dns_addr_stat.st_mtime == old_stat.st_mtime)) { |
130 | df7a86ed | Ed Swierk | *pdns_addr = dns_addr; |
131 | df7a86ed | Ed Swierk | return 0; |
132 | df7a86ed | Ed Swierk | } |
133 | df7a86ed | Ed Swierk | } |
134 | df7a86ed | Ed Swierk | |
135 | f0cbd3ec | bellard | f = fopen("/etc/resolv.conf", "r"); |
136 | f0cbd3ec | bellard | if (!f)
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137 | f0cbd3ec | bellard | return -1; |
138 | f0cbd3ec | bellard | |
139 | 31a60e22 | blueswir1 | #ifdef DEBUG
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140 | f0cbd3ec | bellard | lprint("IP address of your DNS(s): ");
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141 | 31a60e22 | blueswir1 | #endif
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142 | f0cbd3ec | bellard | while (fgets(buff, 512, f) != NULL) { |
143 | f0cbd3ec | bellard | if (sscanf(buff, "nameserver%*[ \t]%256s", buff2) == 1) { |
144 | f0cbd3ec | bellard | if (!inet_aton(buff2, &tmp_addr))
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145 | f0cbd3ec | bellard | continue;
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146 | f0cbd3ec | bellard | /* If it's the first one, set it to dns_addr */
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147 | df7a86ed | Ed Swierk | if (!found) {
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148 | f0cbd3ec | bellard | *pdns_addr = tmp_addr; |
149 | df7a86ed | Ed Swierk | dns_addr = tmp_addr; |
150 | df7a86ed | Ed Swierk | dns_addr_time = curtime; |
151 | df7a86ed | Ed Swierk | } |
152 | 31a60e22 | blueswir1 | #ifdef DEBUG
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153 | f0cbd3ec | bellard | else
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154 | f0cbd3ec | bellard | lprint(", ");
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155 | 31a60e22 | blueswir1 | #endif
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156 | f0cbd3ec | bellard | if (++found > 3) { |
157 | 31a60e22 | blueswir1 | #ifdef DEBUG
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158 | f0cbd3ec | bellard | lprint("(more)");
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159 | 31a60e22 | blueswir1 | #endif
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160 | f0cbd3ec | bellard | break;
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161 | 31a60e22 | blueswir1 | } |
162 | 31a60e22 | blueswir1 | #ifdef DEBUG
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163 | 31a60e22 | blueswir1 | else
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164 | f0cbd3ec | bellard | lprint("%s", inet_ntoa(tmp_addr));
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165 | 31a60e22 | blueswir1 | #endif
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166 | f0cbd3ec | bellard | } |
167 | f0cbd3ec | bellard | } |
168 | 1d43a717 | bellard | fclose(f); |
169 | f0cbd3ec | bellard | if (!found)
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170 | f0cbd3ec | bellard | return -1; |
171 | f0cbd3ec | bellard | return 0; |
172 | f0cbd3ec | bellard | } |
173 | f0cbd3ec | bellard | |
174 | f0cbd3ec | bellard | #endif
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175 | f0cbd3ec | bellard | |
176 | df461894 | Jan Kiszka | static void slirp_init_once(void) |
177 | 379ff53d | bellard | { |
178 | df461894 | Jan Kiszka | static int initialized; |
179 | df461894 | Jan Kiszka | #ifdef _WIN32
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180 | df461894 | Jan Kiszka | WSADATA Data; |
181 | 379ff53d | bellard | #endif
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182 | 379ff53d | bellard | |
183 | df461894 | Jan Kiszka | if (initialized) {
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184 | df461894 | Jan Kiszka | return;
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185 | df461894 | Jan Kiszka | } |
186 | df461894 | Jan Kiszka | initialized = 1;
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187 | df461894 | Jan Kiszka | |
188 | df461894 | Jan Kiszka | #ifdef _WIN32
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189 | df461894 | Jan Kiszka | WSAStartup(MAKEWORD(2,0), &Data); |
190 | df461894 | Jan Kiszka | atexit(winsock_cleanup); |
191 | df461894 | Jan Kiszka | #endif
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192 | df461894 | Jan Kiszka | |
193 | df461894 | Jan Kiszka | loopback_addr.s_addr = htonl(INADDR_LOOPBACK); |
194 | df461894 | Jan Kiszka | } |
195 | df461894 | Jan Kiszka | |
196 | 062e5527 | aliguori | static void slirp_state_save(QEMUFile *f, void *opaque); |
197 | 062e5527 | aliguori | static int slirp_state_load(QEMUFile *f, void *opaque, int version_id); |
198 | 062e5527 | aliguori | |
199 | 9f8bd042 | Jan Kiszka | Slirp *slirp_init(int restricted, struct in_addr vnetwork, |
200 | 9f8bd042 | Jan Kiszka | struct in_addr vnetmask, struct in_addr vhost, |
201 | 9f8bd042 | Jan Kiszka | const char *vhostname, const char *tftp_path, |
202 | 9f8bd042 | Jan Kiszka | const char *bootfile, struct in_addr vdhcp_start, |
203 | 9f8bd042 | Jan Kiszka | struct in_addr vnameserver, void *opaque) |
204 | f0cbd3ec | bellard | { |
205 | 7267c094 | Anthony Liguori | Slirp *slirp = g_malloc0(sizeof(Slirp));
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206 | 460fec67 | Jan Kiszka | |
207 | df461894 | Jan Kiszka | slirp_init_once(); |
208 | 379ff53d | bellard | |
209 | 460fec67 | Jan Kiszka | slirp->restricted = restricted; |
210 | f0cbd3ec | bellard | |
211 | 460fec67 | Jan Kiszka | if_init(slirp); |
212 | 460fec67 | Jan Kiszka | ip_init(slirp); |
213 | f0cbd3ec | bellard | |
214 | f0cbd3ec | bellard | /* Initialise mbufs *after* setting the MTU */
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215 | 460fec67 | Jan Kiszka | m_init(slirp); |
216 | f0cbd3ec | bellard | |
217 | 460fec67 | Jan Kiszka | slirp->vnetwork_addr = vnetwork; |
218 | 460fec67 | Jan Kiszka | slirp->vnetwork_mask = vnetmask; |
219 | 460fec67 | Jan Kiszka | slirp->vhost_addr = vhost; |
220 | c92ef6a2 | Jan Kiszka | if (vhostname) {
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221 | 460fec67 | Jan Kiszka | pstrcpy(slirp->client_hostname, sizeof(slirp->client_hostname),
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222 | 460fec67 | Jan Kiszka | vhostname); |
223 | a13a4126 | Jan Kiszka | } |
224 | ad196a9d | Jan Kiszka | if (tftp_path) {
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225 | 7267c094 | Anthony Liguori | slirp->tftp_prefix = g_strdup(tftp_path); |
226 | ad196a9d | Jan Kiszka | } |
227 | ad196a9d | Jan Kiszka | if (bootfile) {
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228 | 7267c094 | Anthony Liguori | slirp->bootp_filename = g_strdup(bootfile); |
229 | ad196a9d | Jan Kiszka | } |
230 | 460fec67 | Jan Kiszka | slirp->vdhcp_startaddr = vdhcp_start; |
231 | 460fec67 | Jan Kiszka | slirp->vnameserver_addr = vnameserver; |
232 | ad196a9d | Jan Kiszka | |
233 | 9f8bd042 | Jan Kiszka | slirp->opaque = opaque; |
234 | 9f8bd042 | Jan Kiszka | |
235 | 0be71e32 | Alex Williamson | register_savevm(NULL, "slirp", 0, 3, |
236 | 0be71e32 | Alex Williamson | slirp_state_save, slirp_state_load, slirp); |
237 | 9f8bd042 | Jan Kiszka | |
238 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&slirp_instances, slirp, entry); |
239 | ad0d8c4c | Jan Kiszka | |
240 | 9f8bd042 | Jan Kiszka | return slirp;
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241 | f0cbd3ec | bellard | } |
242 | f0cbd3ec | bellard | |
243 | ad0d8c4c | Jan Kiszka | void slirp_cleanup(Slirp *slirp)
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244 | ad0d8c4c | Jan Kiszka | { |
245 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&slirp_instances, slirp, entry); |
246 | b1c99fcd | Jan Kiszka | |
247 | 0be71e32 | Alex Williamson | unregister_savevm(NULL, "slirp", slirp); |
248 | ad0d8c4c | Jan Kiszka | |
249 | 7267c094 | Anthony Liguori | g_free(slirp->tftp_prefix); |
250 | 7267c094 | Anthony Liguori | g_free(slirp->bootp_filename); |
251 | 7267c094 | Anthony Liguori | g_free(slirp); |
252 | ad0d8c4c | Jan Kiszka | } |
253 | ad0d8c4c | Jan Kiszka | |
254 | f0cbd3ec | bellard | #define CONN_CANFSEND(so) (((so)->so_state & (SS_FCANTSENDMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
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255 | f0cbd3ec | bellard | #define CONN_CANFRCV(so) (((so)->so_state & (SS_FCANTRCVMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
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256 | f0cbd3ec | bellard | #define UPD_NFDS(x) if (nfds < (x)) nfds = (x) |
257 | f0cbd3ec | bellard | |
258 | 5fafdf24 | ths | void slirp_select_fill(int *pnfds, |
259 | f0cbd3ec | bellard | fd_set *readfds, fd_set *writefds, fd_set *xfds) |
260 | f0cbd3ec | bellard | { |
261 | b1c99fcd | Jan Kiszka | Slirp *slirp; |
262 | f0cbd3ec | bellard | struct socket *so, *so_next;
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263 | f0cbd3ec | bellard | int nfds;
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264 | f0cbd3ec | bellard | |
265 | 72cf2d4f | Blue Swirl | if (QTAILQ_EMPTY(&slirp_instances)) {
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266 | d918f23e | Jan Kiszka | return;
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267 | d918f23e | Jan Kiszka | } |
268 | d918f23e | Jan Kiszka | |
269 | f0cbd3ec | bellard | /* fail safe */
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270 | f0cbd3ec | bellard | global_readfds = NULL;
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271 | f0cbd3ec | bellard | global_writefds = NULL;
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272 | f0cbd3ec | bellard | global_xfds = NULL;
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273 | 3b46e624 | ths | |
274 | f0cbd3ec | bellard | nfds = *pnfds; |
275 | f0cbd3ec | bellard | /*
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276 | f0cbd3ec | bellard | * First, TCP sockets
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277 | f0cbd3ec | bellard | */
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278 | f0cbd3ec | bellard | do_slowtimo = 0;
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279 | d918f23e | Jan Kiszka | |
280 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(slirp, &slirp_instances, entry) { |
281 | 5fafdf24 | ths | /*
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282 | f0cbd3ec | bellard | * *_slowtimo needs calling if there are IP fragments
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283 | f0cbd3ec | bellard | * in the fragment queue, or there are TCP connections active
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284 | f0cbd3ec | bellard | */
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285 | b1c99fcd | Jan Kiszka | do_slowtimo |= ((slirp->tcb.so_next != &slirp->tcb) || |
286 | 460fec67 | Jan Kiszka | (&slirp->ipq.ip_link != slirp->ipq.ip_link.next)); |
287 | 3b46e624 | ths | |
288 | 460fec67 | Jan Kiszka | for (so = slirp->tcb.so_next; so != &slirp->tcb;
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289 | 460fec67 | Jan Kiszka | so = so_next) { |
290 | f0cbd3ec | bellard | so_next = so->so_next; |
291 | 3b46e624 | ths | |
292 | f0cbd3ec | bellard | /*
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293 | f0cbd3ec | bellard | * See if we need a tcp_fasttimo
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294 | f0cbd3ec | bellard | */
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295 | f0cbd3ec | bellard | if (time_fasttimo == 0 && so->so_tcpcb->t_flags & TF_DELACK) |
296 | f0cbd3ec | bellard | time_fasttimo = curtime; /* Flag when we want a fasttimo */
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297 | 3b46e624 | ths | |
298 | f0cbd3ec | bellard | /*
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299 | f0cbd3ec | bellard | * NOFDREF can include still connecting to local-host,
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300 | f0cbd3ec | bellard | * newly socreated() sockets etc. Don't want to select these.
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301 | f0cbd3ec | bellard | */
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302 | f0cbd3ec | bellard | if (so->so_state & SS_NOFDREF || so->s == -1) |
303 | f0cbd3ec | bellard | continue;
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304 | 3b46e624 | ths | |
305 | f0cbd3ec | bellard | /*
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306 | f0cbd3ec | bellard | * Set for reading sockets which are accepting
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307 | f0cbd3ec | bellard | */
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308 | f0cbd3ec | bellard | if (so->so_state & SS_FACCEPTCONN) {
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309 | f0cbd3ec | bellard | FD_SET(so->s, readfds); |
310 | f0cbd3ec | bellard | UPD_NFDS(so->s); |
311 | f0cbd3ec | bellard | continue;
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312 | f0cbd3ec | bellard | } |
313 | 3b46e624 | ths | |
314 | f0cbd3ec | bellard | /*
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315 | f0cbd3ec | bellard | * Set for writing sockets which are connecting
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316 | f0cbd3ec | bellard | */
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317 | f0cbd3ec | bellard | if (so->so_state & SS_ISFCONNECTING) {
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318 | f0cbd3ec | bellard | FD_SET(so->s, writefds); |
319 | f0cbd3ec | bellard | UPD_NFDS(so->s); |
320 | f0cbd3ec | bellard | continue;
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321 | f0cbd3ec | bellard | } |
322 | 3b46e624 | ths | |
323 | f0cbd3ec | bellard | /*
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324 | f0cbd3ec | bellard | * Set for writing if we are connected, can send more, and
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325 | f0cbd3ec | bellard | * we have something to send
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326 | f0cbd3ec | bellard | */
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327 | f0cbd3ec | bellard | if (CONN_CANFSEND(so) && so->so_rcv.sb_cc) {
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328 | f0cbd3ec | bellard | FD_SET(so->s, writefds); |
329 | f0cbd3ec | bellard | UPD_NFDS(so->s); |
330 | f0cbd3ec | bellard | } |
331 | 3b46e624 | ths | |
332 | f0cbd3ec | bellard | /*
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333 | f0cbd3ec | bellard | * Set for reading (and urgent data) if we are connected, can
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334 | f0cbd3ec | bellard | * receive more, and we have room for it XXX /2 ?
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335 | f0cbd3ec | bellard | */
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336 | f0cbd3ec | bellard | if (CONN_CANFRCV(so) && (so->so_snd.sb_cc < (so->so_snd.sb_datalen/2))) { |
337 | f0cbd3ec | bellard | FD_SET(so->s, readfds); |
338 | f0cbd3ec | bellard | FD_SET(so->s, xfds); |
339 | f0cbd3ec | bellard | UPD_NFDS(so->s); |
340 | f0cbd3ec | bellard | } |
341 | f0cbd3ec | bellard | } |
342 | 3b46e624 | ths | |
343 | f0cbd3ec | bellard | /*
|
344 | f0cbd3ec | bellard | * UDP sockets
|
345 | f0cbd3ec | bellard | */
|
346 | 460fec67 | Jan Kiszka | for (so = slirp->udb.so_next; so != &slirp->udb;
|
347 | 460fec67 | Jan Kiszka | so = so_next) { |
348 | f0cbd3ec | bellard | so_next = so->so_next; |
349 | 3b46e624 | ths | |
350 | f0cbd3ec | bellard | /*
|
351 | f0cbd3ec | bellard | * See if it's timed out
|
352 | f0cbd3ec | bellard | */
|
353 | f0cbd3ec | bellard | if (so->so_expire) {
|
354 | f0cbd3ec | bellard | if (so->so_expire <= curtime) {
|
355 | f0cbd3ec | bellard | udp_detach(so); |
356 | f0cbd3ec | bellard | continue;
|
357 | f0cbd3ec | bellard | } else
|
358 | f0cbd3ec | bellard | do_slowtimo = 1; /* Let socket expire */ |
359 | f0cbd3ec | bellard | } |
360 | 3b46e624 | ths | |
361 | f0cbd3ec | bellard | /*
|
362 | f0cbd3ec | bellard | * When UDP packets are received from over the
|
363 | f0cbd3ec | bellard | * link, they're sendto()'d straight away, so
|
364 | f0cbd3ec | bellard | * no need for setting for writing
|
365 | f0cbd3ec | bellard | * Limit the number of packets queued by this session
|
366 | f0cbd3ec | bellard | * to 4. Note that even though we try and limit this
|
367 | f0cbd3ec | bellard | * to 4 packets, the session could have more queued
|
368 | f0cbd3ec | bellard | * if the packets needed to be fragmented
|
369 | f0cbd3ec | bellard | * (XXX <= 4 ?)
|
370 | f0cbd3ec | bellard | */
|
371 | f0cbd3ec | bellard | if ((so->so_state & SS_ISFCONNECTED) && so->so_queued <= 4) { |
372 | f0cbd3ec | bellard | FD_SET(so->s, readfds); |
373 | f0cbd3ec | bellard | UPD_NFDS(so->s); |
374 | f0cbd3ec | bellard | } |
375 | f0cbd3ec | bellard | } |
376 | e6d43cfb | Jan Kiszka | |
377 | e6d43cfb | Jan Kiszka | /*
|
378 | e6d43cfb | Jan Kiszka | * ICMP sockets
|
379 | e6d43cfb | Jan Kiszka | */
|
380 | e6d43cfb | Jan Kiszka | for (so = slirp->icmp.so_next; so != &slirp->icmp;
|
381 | e6d43cfb | Jan Kiszka | so = so_next) { |
382 | e6d43cfb | Jan Kiszka | so_next = so->so_next; |
383 | e6d43cfb | Jan Kiszka | |
384 | e6d43cfb | Jan Kiszka | /*
|
385 | e6d43cfb | Jan Kiszka | * See if it's timed out
|
386 | e6d43cfb | Jan Kiszka | */
|
387 | e6d43cfb | Jan Kiszka | if (so->so_expire) {
|
388 | e6d43cfb | Jan Kiszka | if (so->so_expire <= curtime) {
|
389 | e6d43cfb | Jan Kiszka | icmp_detach(so); |
390 | e6d43cfb | Jan Kiszka | continue;
|
391 | e6d43cfb | Jan Kiszka | } else {
|
392 | e6d43cfb | Jan Kiszka | do_slowtimo = 1; /* Let socket expire */ |
393 | e6d43cfb | Jan Kiszka | } |
394 | e6d43cfb | Jan Kiszka | } |
395 | e6d43cfb | Jan Kiszka | |
396 | e6d43cfb | Jan Kiszka | if (so->so_state & SS_ISFCONNECTED) {
|
397 | e6d43cfb | Jan Kiszka | FD_SET(so->s, readfds); |
398 | e6d43cfb | Jan Kiszka | UPD_NFDS(so->s); |
399 | e6d43cfb | Jan Kiszka | } |
400 | e6d43cfb | Jan Kiszka | } |
401 | b1c99fcd | Jan Kiszka | } |
402 | 5fafdf24 | ths | |
403 | f0cbd3ec | bellard | *pnfds = nfds; |
404 | 5fafdf24 | ths | } |
405 | f0cbd3ec | bellard | |
406 | d918f23e | Jan Kiszka | void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds,
|
407 | d918f23e | Jan Kiszka | int select_error)
|
408 | f0cbd3ec | bellard | { |
409 | b1c99fcd | Jan Kiszka | Slirp *slirp; |
410 | f0cbd3ec | bellard | struct socket *so, *so_next;
|
411 | f0cbd3ec | bellard | int ret;
|
412 | f0cbd3ec | bellard | |
413 | 72cf2d4f | Blue Swirl | if (QTAILQ_EMPTY(&slirp_instances)) {
|
414 | d918f23e | Jan Kiszka | return;
|
415 | d918f23e | Jan Kiszka | } |
416 | d918f23e | Jan Kiszka | |
417 | f0cbd3ec | bellard | global_readfds = readfds; |
418 | f0cbd3ec | bellard | global_writefds = writefds; |
419 | f0cbd3ec | bellard | global_xfds = xfds; |
420 | f0cbd3ec | bellard | |
421 | 7bd427d8 | Paolo Bonzini | curtime = qemu_get_clock_ms(rt_clock); |
422 | 5fafdf24 | ths | |
423 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(slirp, &slirp_instances, entry) { |
424 | f0cbd3ec | bellard | /*
|
425 | 5fafdf24 | ths | * See if anything has timed out
|
426 | f0cbd3ec | bellard | */
|
427 | df5f8956 | bellard | if (time_fasttimo && ((curtime - time_fasttimo) >= 2)) { |
428 | 460fec67 | Jan Kiszka | tcp_fasttimo(slirp); |
429 | f0cbd3ec | bellard | time_fasttimo = 0;
|
430 | f0cbd3ec | bellard | } |
431 | f0cbd3ec | bellard | if (do_slowtimo && ((curtime - last_slowtimo) >= 499)) { |
432 | 460fec67 | Jan Kiszka | ip_slowtimo(slirp); |
433 | 460fec67 | Jan Kiszka | tcp_slowtimo(slirp); |
434 | f0cbd3ec | bellard | last_slowtimo = curtime; |
435 | f0cbd3ec | bellard | } |
436 | 5fafdf24 | ths | |
437 | f0cbd3ec | bellard | /*
|
438 | f0cbd3ec | bellard | * Check sockets
|
439 | f0cbd3ec | bellard | */
|
440 | d918f23e | Jan Kiszka | if (!select_error) {
|
441 | f0cbd3ec | bellard | /*
|
442 | f0cbd3ec | bellard | * Check TCP sockets
|
443 | f0cbd3ec | bellard | */
|
444 | 460fec67 | Jan Kiszka | for (so = slirp->tcb.so_next; so != &slirp->tcb;
|
445 | 460fec67 | Jan Kiszka | so = so_next) { |
446 | f0cbd3ec | bellard | so_next = so->so_next; |
447 | 3b46e624 | ths | |
448 | f0cbd3ec | bellard | /*
|
449 | f0cbd3ec | bellard | * FD_ISSET is meaningless on these sockets
|
450 | f0cbd3ec | bellard | * (and they can crash the program)
|
451 | f0cbd3ec | bellard | */
|
452 | f0cbd3ec | bellard | if (so->so_state & SS_NOFDREF || so->s == -1) |
453 | f0cbd3ec | bellard | continue;
|
454 | 3b46e624 | ths | |
455 | f0cbd3ec | bellard | /*
|
456 | f0cbd3ec | bellard | * Check for URG data
|
457 | f0cbd3ec | bellard | * This will soread as well, so no need to
|
458 | f0cbd3ec | bellard | * test for readfds below if this succeeds
|
459 | f0cbd3ec | bellard | */
|
460 | f0cbd3ec | bellard | if (FD_ISSET(so->s, xfds))
|
461 | f0cbd3ec | bellard | sorecvoob(so); |
462 | f0cbd3ec | bellard | /*
|
463 | f0cbd3ec | bellard | * Check sockets for reading
|
464 | f0cbd3ec | bellard | */
|
465 | f0cbd3ec | bellard | else if (FD_ISSET(so->s, readfds)) { |
466 | f0cbd3ec | bellard | /*
|
467 | f0cbd3ec | bellard | * Check for incoming connections
|
468 | f0cbd3ec | bellard | */
|
469 | f0cbd3ec | bellard | if (so->so_state & SS_FACCEPTCONN) {
|
470 | f0cbd3ec | bellard | tcp_connect(so); |
471 | f0cbd3ec | bellard | continue;
|
472 | f0cbd3ec | bellard | } /* else */
|
473 | f0cbd3ec | bellard | ret = soread(so); |
474 | 3b46e624 | ths | |
475 | f0cbd3ec | bellard | /* Output it if we read something */
|
476 | f0cbd3ec | bellard | if (ret > 0) |
477 | f0cbd3ec | bellard | tcp_output(sototcpcb(so)); |
478 | f0cbd3ec | bellard | } |
479 | 3b46e624 | ths | |
480 | f0cbd3ec | bellard | /*
|
481 | f0cbd3ec | bellard | * Check sockets for writing
|
482 | f0cbd3ec | bellard | */
|
483 | f0cbd3ec | bellard | if (FD_ISSET(so->s, writefds)) {
|
484 | f0cbd3ec | bellard | /*
|
485 | f0cbd3ec | bellard | * Check for non-blocking, still-connecting sockets
|
486 | f0cbd3ec | bellard | */
|
487 | f0cbd3ec | bellard | if (so->so_state & SS_ISFCONNECTING) {
|
488 | f0cbd3ec | bellard | /* Connected */
|
489 | f0cbd3ec | bellard | so->so_state &= ~SS_ISFCONNECTING; |
490 | 3b46e624 | ths | |
491 | 0a656f5f | malc | ret = send(so->s, (const void *) &ret, 0, 0); |
492 | f0cbd3ec | bellard | if (ret < 0) { |
493 | f0cbd3ec | bellard | /* XXXXX Must fix, zero bytes is a NOP */
|
494 | f0cbd3ec | bellard | if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
495 | f0cbd3ec | bellard | errno == EINPROGRESS || errno == ENOTCONN) |
496 | f0cbd3ec | bellard | continue;
|
497 | 3b46e624 | ths | |
498 | f0cbd3ec | bellard | /* else failed */
|
499 | f932b6ce | Jan Kiszka | so->so_state &= SS_PERSISTENT_MASK; |
500 | f932b6ce | Jan Kiszka | so->so_state |= SS_NOFDREF; |
501 | f0cbd3ec | bellard | } |
502 | f0cbd3ec | bellard | /* else so->so_state &= ~SS_ISFCONNECTING; */
|
503 | 3b46e624 | ths | |
504 | f0cbd3ec | bellard | /*
|
505 | f0cbd3ec | bellard | * Continue tcp_input
|
506 | f0cbd3ec | bellard | */
|
507 | f0cbd3ec | bellard | tcp_input((struct mbuf *)NULL, sizeof(struct ip), so); |
508 | f0cbd3ec | bellard | /* continue; */
|
509 | f0cbd3ec | bellard | } else
|
510 | f0cbd3ec | bellard | ret = sowrite(so); |
511 | f0cbd3ec | bellard | /*
|
512 | 5fafdf24 | ths | * XXXXX If we wrote something (a lot), there
|
513 | f0cbd3ec | bellard | * could be a need for a window update.
|
514 | f0cbd3ec | bellard | * In the worst case, the remote will send
|
515 | f0cbd3ec | bellard | * a window probe to get things going again
|
516 | f0cbd3ec | bellard | */
|
517 | f0cbd3ec | bellard | } |
518 | 3b46e624 | ths | |
519 | f0cbd3ec | bellard | /*
|
520 | f0cbd3ec | bellard | * Probe a still-connecting, non-blocking socket
|
521 | f0cbd3ec | bellard | * to check if it's still alive
|
522 | f0cbd3ec | bellard | */
|
523 | f0cbd3ec | bellard | #ifdef PROBE_CONN
|
524 | f0cbd3ec | bellard | if (so->so_state & SS_ISFCONNECTING) {
|
525 | 00aa0040 | Blue Swirl | ret = qemu_recv(so->s, &ret, 0,0); |
526 | 3b46e624 | ths | |
527 | f0cbd3ec | bellard | if (ret < 0) { |
528 | f0cbd3ec | bellard | /* XXX */
|
529 | f0cbd3ec | bellard | if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
530 | f0cbd3ec | bellard | errno == EINPROGRESS || errno == ENOTCONN) |
531 | f0cbd3ec | bellard | continue; /* Still connecting, continue */ |
532 | 3b46e624 | ths | |
533 | f0cbd3ec | bellard | /* else failed */
|
534 | f932b6ce | Jan Kiszka | so->so_state &= SS_PERSISTENT_MASK; |
535 | f932b6ce | Jan Kiszka | so->so_state |= SS_NOFDREF; |
536 | 3b46e624 | ths | |
537 | f0cbd3ec | bellard | /* tcp_input will take care of it */
|
538 | f0cbd3ec | bellard | } else {
|
539 | 02d2c54c | bellard | ret = send(so->s, &ret, 0,0); |
540 | f0cbd3ec | bellard | if (ret < 0) { |
541 | f0cbd3ec | bellard | /* XXX */
|
542 | f0cbd3ec | bellard | if (errno == EAGAIN || errno == EWOULDBLOCK ||
|
543 | f0cbd3ec | bellard | errno == EINPROGRESS || errno == ENOTCONN) |
544 | f0cbd3ec | bellard | continue;
|
545 | f0cbd3ec | bellard | /* else failed */
|
546 | f932b6ce | Jan Kiszka | so->so_state &= SS_PERSISTENT_MASK; |
547 | f932b6ce | Jan Kiszka | so->so_state |= SS_NOFDREF; |
548 | f0cbd3ec | bellard | } else
|
549 | f0cbd3ec | bellard | so->so_state &= ~SS_ISFCONNECTING; |
550 | 3b46e624 | ths | |
551 | f0cbd3ec | bellard | } |
552 | f0cbd3ec | bellard | tcp_input((struct mbuf *)NULL, sizeof(struct ip),so); |
553 | f0cbd3ec | bellard | } /* SS_ISFCONNECTING */
|
554 | f0cbd3ec | bellard | #endif
|
555 | f0cbd3ec | bellard | } |
556 | 3b46e624 | ths | |
557 | f0cbd3ec | bellard | /*
|
558 | f0cbd3ec | bellard | * Now UDP sockets.
|
559 | f0cbd3ec | bellard | * Incoming packets are sent straight away, they're not buffered.
|
560 | f0cbd3ec | bellard | * Incoming UDP data isn't buffered either.
|
561 | f0cbd3ec | bellard | */
|
562 | 460fec67 | Jan Kiszka | for (so = slirp->udb.so_next; so != &slirp->udb;
|
563 | 460fec67 | Jan Kiszka | so = so_next) { |
564 | f0cbd3ec | bellard | so_next = so->so_next; |
565 | 3b46e624 | ths | |
566 | f0cbd3ec | bellard | if (so->s != -1 && FD_ISSET(so->s, readfds)) { |
567 | f0cbd3ec | bellard | sorecvfrom(so); |
568 | f0cbd3ec | bellard | } |
569 | f0cbd3ec | bellard | } |
570 | e6d43cfb | Jan Kiszka | |
571 | e6d43cfb | Jan Kiszka | /*
|
572 | e6d43cfb | Jan Kiszka | * Check incoming ICMP relies.
|
573 | e6d43cfb | Jan Kiszka | */
|
574 | e6d43cfb | Jan Kiszka | for (so = slirp->icmp.so_next; so != &slirp->icmp;
|
575 | e6d43cfb | Jan Kiszka | so = so_next) { |
576 | e6d43cfb | Jan Kiszka | so_next = so->so_next; |
577 | e6d43cfb | Jan Kiszka | |
578 | e6d43cfb | Jan Kiszka | if (so->s != -1 && FD_ISSET(so->s, readfds)) { |
579 | e6d43cfb | Jan Kiszka | icmp_receive(so); |
580 | e6d43cfb | Jan Kiszka | } |
581 | e6d43cfb | Jan Kiszka | } |
582 | f0cbd3ec | bellard | } |
583 | 5fafdf24 | ths | |
584 | f0cbd3ec | bellard | /*
|
585 | f0cbd3ec | bellard | * See if we can start outputting
|
586 | f0cbd3ec | bellard | */
|
587 | 460fec67 | Jan Kiszka | if (slirp->if_queued) {
|
588 | 460fec67 | Jan Kiszka | if_start(slirp); |
589 | 460fec67 | Jan Kiszka | } |
590 | b1c99fcd | Jan Kiszka | } |
591 | 02d2c54c | bellard | |
592 | 02d2c54c | bellard | /* clear global file descriptor sets.
|
593 | 02d2c54c | bellard | * these reside on the stack in vl.c
|
594 | 02d2c54c | bellard | * so they're unusable if we're not in
|
595 | 02d2c54c | bellard | * slirp_select_fill or slirp_select_poll.
|
596 | 02d2c54c | bellard | */
|
597 | 02d2c54c | bellard | global_readfds = NULL;
|
598 | 02d2c54c | bellard | global_writefds = NULL;
|
599 | 02d2c54c | bellard | global_xfds = NULL;
|
600 | f0cbd3ec | bellard | } |
601 | f0cbd3ec | bellard | |
602 | 460fec67 | Jan Kiszka | static void arp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) |
603 | f0cbd3ec | bellard | { |
604 | f0cbd3ec | bellard | struct arphdr *ah = (struct arphdr *)(pkt + ETH_HLEN); |
605 | dbf3c4b4 | Hervรฉ Poussineau | uint8_t arp_reply[max(ETH_HLEN + sizeof(struct arphdr), 64)]; |
606 | f0cbd3ec | bellard | struct ethhdr *reh = (struct ethhdr *)arp_reply; |
607 | f0cbd3ec | bellard | struct arphdr *rah = (struct arphdr *)(arp_reply + ETH_HLEN); |
608 | f0cbd3ec | bellard | int ar_op;
|
609 | a3d4af03 | bellard | struct ex_list *ex_ptr;
|
610 | f0cbd3ec | bellard | |
611 | f0cbd3ec | bellard | ar_op = ntohs(ah->ar_op); |
612 | f0cbd3ec | bellard | switch(ar_op) {
|
613 | f0cbd3ec | bellard | case ARPOP_REQUEST:
|
614 | 1a0ca1e1 | Fabien Chouteau | if (ah->ar_tip == ah->ar_sip) {
|
615 | 1a0ca1e1 | Fabien Chouteau | /* Gratuitous ARP */
|
616 | 1a0ca1e1 | Fabien Chouteau | arp_table_add(slirp, ah->ar_sip, ah->ar_sha); |
617 | 1a0ca1e1 | Fabien Chouteau | return;
|
618 | 1a0ca1e1 | Fabien Chouteau | } |
619 | 1a0ca1e1 | Fabien Chouteau | |
620 | 460fec67 | Jan Kiszka | if ((ah->ar_tip & slirp->vnetwork_mask.s_addr) ==
|
621 | 460fec67 | Jan Kiszka | slirp->vnetwork_addr.s_addr) { |
622 | 460fec67 | Jan Kiszka | if (ah->ar_tip == slirp->vnameserver_addr.s_addr ||
|
623 | 460fec67 | Jan Kiszka | ah->ar_tip == slirp->vhost_addr.s_addr) |
624 | a3d4af03 | bellard | goto arp_ok;
|
625 | 460fec67 | Jan Kiszka | for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
626 | a13a4126 | Jan Kiszka | if (ex_ptr->ex_addr.s_addr == ah->ar_tip)
|
627 | a3d4af03 | bellard | goto arp_ok;
|
628 | a3d4af03 | bellard | } |
629 | a3d4af03 | bellard | return;
|
630 | a3d4af03 | bellard | arp_ok:
|
631 | dbf3c4b4 | Hervรฉ Poussineau | memset(arp_reply, 0, sizeof(arp_reply)); |
632 | 1a0ca1e1 | Fabien Chouteau | |
633 | 1a0ca1e1 | Fabien Chouteau | arp_table_add(slirp, ah->ar_sip, ah->ar_sha); |
634 | f0cbd3ec | bellard | |
635 | f0cbd3ec | bellard | /* ARP request for alias/dns mac address */
|
636 | f0cbd3ec | bellard | memcpy(reh->h_dest, pkt + ETH_ALEN, ETH_ALEN); |
637 | a13a4126 | Jan Kiszka | memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
638 | a13a4126 | Jan Kiszka | memcpy(&reh->h_source[2], &ah->ar_tip, 4); |
639 | f0cbd3ec | bellard | reh->h_proto = htons(ETH_P_ARP); |
640 | f0cbd3ec | bellard | |
641 | f0cbd3ec | bellard | rah->ar_hrd = htons(1);
|
642 | f0cbd3ec | bellard | rah->ar_pro = htons(ETH_P_IP); |
643 | f0cbd3ec | bellard | rah->ar_hln = ETH_ALEN; |
644 | f0cbd3ec | bellard | rah->ar_pln = 4;
|
645 | f0cbd3ec | bellard | rah->ar_op = htons(ARPOP_REPLY); |
646 | f0cbd3ec | bellard | memcpy(rah->ar_sha, reh->h_source, ETH_ALEN); |
647 | a13a4126 | Jan Kiszka | rah->ar_sip = ah->ar_tip; |
648 | f0cbd3ec | bellard | memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN); |
649 | a13a4126 | Jan Kiszka | rah->ar_tip = ah->ar_sip; |
650 | 9f8bd042 | Jan Kiszka | slirp_output(slirp->opaque, arp_reply, sizeof(arp_reply));
|
651 | f0cbd3ec | bellard | } |
652 | f0cbd3ec | bellard | break;
|
653 | de806f07 | bellard | case ARPOP_REPLY:
|
654 | 1a0ca1e1 | Fabien Chouteau | arp_table_add(slirp, ah->ar_sip, ah->ar_sha); |
655 | de806f07 | bellard | break;
|
656 | f0cbd3ec | bellard | default:
|
657 | f0cbd3ec | bellard | break;
|
658 | f0cbd3ec | bellard | } |
659 | f0cbd3ec | bellard | } |
660 | f0cbd3ec | bellard | |
661 | 9f8bd042 | Jan Kiszka | void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len) |
662 | f0cbd3ec | bellard | { |
663 | f0cbd3ec | bellard | struct mbuf *m;
|
664 | f0cbd3ec | bellard | int proto;
|
665 | f0cbd3ec | bellard | |
666 | f0cbd3ec | bellard | if (pkt_len < ETH_HLEN)
|
667 | f0cbd3ec | bellard | return;
|
668 | 3b46e624 | ths | |
669 | f0cbd3ec | bellard | proto = ntohs(*(uint16_t *)(pkt + 12));
|
670 | f0cbd3ec | bellard | switch(proto) {
|
671 | f0cbd3ec | bellard | case ETH_P_ARP:
|
672 | 460fec67 | Jan Kiszka | arp_input(slirp, pkt, pkt_len); |
673 | f0cbd3ec | bellard | break;
|
674 | f0cbd3ec | bellard | case ETH_P_IP:
|
675 | 460fec67 | Jan Kiszka | m = m_get(slirp); |
676 | f0cbd3ec | bellard | if (!m)
|
677 | f0cbd3ec | bellard | return;
|
678 | 38f3e7c2 | bellard | /* Note: we add to align the IP header */
|
679 | e8e880a7 | aurel32 | if (M_FREEROOM(m) < pkt_len + 2) { |
680 | e8e880a7 | aurel32 | m_inc(m, pkt_len + 2);
|
681 | e8e880a7 | aurel32 | } |
682 | 38f3e7c2 | bellard | m->m_len = pkt_len + 2;
|
683 | 38f3e7c2 | bellard | memcpy(m->m_data + 2, pkt, pkt_len);
|
684 | f0cbd3ec | bellard | |
685 | 38f3e7c2 | bellard | m->m_data += 2 + ETH_HLEN;
|
686 | 38f3e7c2 | bellard | m->m_len -= 2 + ETH_HLEN;
|
687 | f0cbd3ec | bellard | |
688 | f0cbd3ec | bellard | ip_input(m); |
689 | f0cbd3ec | bellard | break;
|
690 | f0cbd3ec | bellard | default:
|
691 | f0cbd3ec | bellard | break;
|
692 | f0cbd3ec | bellard | } |
693 | f0cbd3ec | bellard | } |
694 | f0cbd3ec | bellard | |
695 | 1ab74cea | Fabien Chouteau | /* Output the IP packet to the ethernet device. Returns 0 if the packet must be
|
696 | 1ab74cea | Fabien Chouteau | * re-queued.
|
697 | 1ab74cea | Fabien Chouteau | */
|
698 | 1ab74cea | Fabien Chouteau | int if_encap(Slirp *slirp, struct mbuf *ifm) |
699 | f0cbd3ec | bellard | { |
700 | f0cbd3ec | bellard | uint8_t buf[1600];
|
701 | f0cbd3ec | bellard | struct ethhdr *eh = (struct ethhdr *)buf; |
702 | 1a0ca1e1 | Fabien Chouteau | uint8_t ethaddr[ETH_ALEN]; |
703 | 1ab74cea | Fabien Chouteau | const struct ip *iph = (const struct ip *)ifm->m_data; |
704 | f0cbd3ec | bellard | |
705 | 1ab74cea | Fabien Chouteau | if (ifm->m_len + ETH_HLEN > sizeof(buf)) { |
706 | 1ab74cea | Fabien Chouteau | return 1; |
707 | 1ab74cea | Fabien Chouteau | } |
708 | 1a0ca1e1 | Fabien Chouteau | |
709 | 1a0ca1e1 | Fabien Chouteau | if (!arp_table_search(slirp, iph->ip_dst.s_addr, ethaddr)) {
|
710 | de806f07 | bellard | uint8_t arp_req[ETH_HLEN + sizeof(struct arphdr)]; |
711 | de806f07 | bellard | struct ethhdr *reh = (struct ethhdr *)arp_req; |
712 | de806f07 | bellard | struct arphdr *rah = (struct arphdr *)(arp_req + ETH_HLEN); |
713 | de806f07 | bellard | |
714 | 1ab74cea | Fabien Chouteau | if (!ifm->arp_requested) {
|
715 | 1ab74cea | Fabien Chouteau | /* If the client addr is not known, send an ARP request */
|
716 | 1ab74cea | Fabien Chouteau | memset(reh->h_dest, 0xff, ETH_ALEN);
|
717 | 1ab74cea | Fabien Chouteau | memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 4);
|
718 | 1ab74cea | Fabien Chouteau | memcpy(&reh->h_source[2], &slirp->vhost_addr, 4); |
719 | 1ab74cea | Fabien Chouteau | reh->h_proto = htons(ETH_P_ARP); |
720 | 1ab74cea | Fabien Chouteau | rah->ar_hrd = htons(1);
|
721 | 1ab74cea | Fabien Chouteau | rah->ar_pro = htons(ETH_P_IP); |
722 | 1ab74cea | Fabien Chouteau | rah->ar_hln = ETH_ALEN; |
723 | 1ab74cea | Fabien Chouteau | rah->ar_pln = 4;
|
724 | 1ab74cea | Fabien Chouteau | rah->ar_op = htons(ARPOP_REQUEST); |
725 | 1ab74cea | Fabien Chouteau | |
726 | 1ab74cea | Fabien Chouteau | /* source hw addr */
|
727 | 1ab74cea | Fabien Chouteau | memcpy(rah->ar_sha, special_ethaddr, ETH_ALEN - 4);
|
728 | 1ab74cea | Fabien Chouteau | memcpy(&rah->ar_sha[2], &slirp->vhost_addr, 4); |
729 | 1ab74cea | Fabien Chouteau | |
730 | 1ab74cea | Fabien Chouteau | /* source IP */
|
731 | 1ab74cea | Fabien Chouteau | rah->ar_sip = slirp->vhost_addr.s_addr; |
732 | 1ab74cea | Fabien Chouteau | |
733 | 1ab74cea | Fabien Chouteau | /* target hw addr (none) */
|
734 | 1ab74cea | Fabien Chouteau | memset(rah->ar_tha, 0, ETH_ALEN);
|
735 | 1ab74cea | Fabien Chouteau | |
736 | 1ab74cea | Fabien Chouteau | /* target IP */
|
737 | 1ab74cea | Fabien Chouteau | rah->ar_tip = iph->ip_dst.s_addr; |
738 | 1ab74cea | Fabien Chouteau | slirp->client_ipaddr = iph->ip_dst; |
739 | 1ab74cea | Fabien Chouteau | slirp_output(slirp->opaque, arp_req, sizeof(arp_req));
|
740 | 1ab74cea | Fabien Chouteau | ifm->arp_requested = true;
|
741 | e3a110b5 | Jan Kiszka | |
742 | e3a110b5 | Jan Kiszka | /* Expire request and drop outgoing packet after 1 second */
|
743 | e3a110b5 | Jan Kiszka | ifm->expiration_date = qemu_get_clock_ns(rt_clock) + 1000000000ULL;
|
744 | 1ab74cea | Fabien Chouteau | } |
745 | 1ab74cea | Fabien Chouteau | return 0; |
746 | de806f07 | bellard | } else {
|
747 | 1a0ca1e1 | Fabien Chouteau | memcpy(eh->h_dest, ethaddr, ETH_ALEN); |
748 | a13a4126 | Jan Kiszka | memcpy(eh->h_source, special_ethaddr, ETH_ALEN - 4);
|
749 | de806f07 | bellard | /* XXX: not correct */
|
750 | 460fec67 | Jan Kiszka | memcpy(&eh->h_source[2], &slirp->vhost_addr, 4); |
751 | de806f07 | bellard | eh->h_proto = htons(ETH_P_IP); |
752 | 1ab74cea | Fabien Chouteau | memcpy(buf + sizeof(struct ethhdr), ifm->m_data, ifm->m_len); |
753 | 1ab74cea | Fabien Chouteau | slirp_output(slirp->opaque, buf, ifm->m_len + ETH_HLEN); |
754 | 1ab74cea | Fabien Chouteau | return 1; |
755 | de806f07 | bellard | } |
756 | f0cbd3ec | bellard | } |
757 | 9bf05444 | bellard | |
758 | 9c12a6f2 | Jan Kiszka | /* Drop host forwarding rule, return 0 if found. */
|
759 | 9f8bd042 | Jan Kiszka | int slirp_remove_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr, |
760 | 9f8bd042 | Jan Kiszka | int host_port)
|
761 | c1261d8d | Alexander Graf | { |
762 | c1261d8d | Alexander Graf | struct socket *so;
|
763 | 460fec67 | Jan Kiszka | struct socket *head = (is_udp ? &slirp->udb : &slirp->tcb);
|
764 | 2ad82cf9 | Jan Kiszka | struct sockaddr_in addr;
|
765 | 2ad82cf9 | Jan Kiszka | int port = htons(host_port);
|
766 | 2ad82cf9 | Jan Kiszka | socklen_t addr_len; |
767 | c1261d8d | Alexander Graf | |
768 | c1261d8d | Alexander Graf | for (so = head->so_next; so != head; so = so->so_next) {
|
769 | 2ad82cf9 | Jan Kiszka | addr_len = sizeof(addr);
|
770 | 9c12a6f2 | Jan Kiszka | if ((so->so_state & SS_HOSTFWD) &&
|
771 | 9c12a6f2 | Jan Kiszka | getsockname(so->s, (struct sockaddr *)&addr, &addr_len) == 0 && |
772 | 3c6a0580 | Jan Kiszka | addr.sin_addr.s_addr == host_addr.s_addr && |
773 | 2ad82cf9 | Jan Kiszka | addr.sin_port == port) { |
774 | c1261d8d | Alexander Graf | close(so->s); |
775 | c1261d8d | Alexander Graf | sofree(so); |
776 | 9c12a6f2 | Jan Kiszka | return 0; |
777 | c1261d8d | Alexander Graf | } |
778 | c1261d8d | Alexander Graf | } |
779 | c1261d8d | Alexander Graf | |
780 | 9c12a6f2 | Jan Kiszka | return -1; |
781 | c1261d8d | Alexander Graf | } |
782 | c1261d8d | Alexander Graf | |
783 | 9f8bd042 | Jan Kiszka | int slirp_add_hostfwd(Slirp *slirp, int is_udp, struct in_addr host_addr, |
784 | 9f8bd042 | Jan Kiszka | int host_port, struct in_addr guest_addr, int guest_port) |
785 | 9bf05444 | bellard | { |
786 | a13a4126 | Jan Kiszka | if (!guest_addr.s_addr) {
|
787 | 460fec67 | Jan Kiszka | guest_addr = slirp->vdhcp_startaddr; |
788 | a13a4126 | Jan Kiszka | } |
789 | 9bf05444 | bellard | if (is_udp) {
|
790 | 460fec67 | Jan Kiszka | if (!udp_listen(slirp, host_addr.s_addr, htons(host_port),
|
791 | 460fec67 | Jan Kiszka | guest_addr.s_addr, htons(guest_port), SS_HOSTFWD)) |
792 | 9bf05444 | bellard | return -1; |
793 | 9bf05444 | bellard | } else {
|
794 | 460fec67 | Jan Kiszka | if (!tcp_listen(slirp, host_addr.s_addr, htons(host_port),
|
795 | 460fec67 | Jan Kiszka | guest_addr.s_addr, htons(guest_port), SS_HOSTFWD)) |
796 | 9bf05444 | bellard | return -1; |
797 | 9bf05444 | bellard | } |
798 | 9bf05444 | bellard | return 0; |
799 | 9bf05444 | bellard | } |
800 | a3d4af03 | bellard | |
801 | 9f8bd042 | Jan Kiszka | int slirp_add_exec(Slirp *slirp, int do_pty, const void *args, |
802 | bb53fc53 | Jan Kiszka | struct in_addr *guest_addr, int guest_port) |
803 | a3d4af03 | bellard | { |
804 | bb53fc53 | Jan Kiszka | if (!guest_addr->s_addr) {
|
805 | bb53fc53 | Jan Kiszka | guest_addr->s_addr = slirp->vnetwork_addr.s_addr | |
806 | 460fec67 | Jan Kiszka | (htonl(0x0204) & ~slirp->vnetwork_mask.s_addr);
|
807 | c92ef6a2 | Jan Kiszka | } |
808 | bb53fc53 | Jan Kiszka | if ((guest_addr->s_addr & slirp->vnetwork_mask.s_addr) !=
|
809 | 460fec67 | Jan Kiszka | slirp->vnetwork_addr.s_addr || |
810 | bb53fc53 | Jan Kiszka | guest_addr->s_addr == slirp->vhost_addr.s_addr || |
811 | bb53fc53 | Jan Kiszka | guest_addr->s_addr == slirp->vnameserver_addr.s_addr) { |
812 | a13a4126 | Jan Kiszka | return -1; |
813 | a13a4126 | Jan Kiszka | } |
814 | bb53fc53 | Jan Kiszka | return add_exec(&slirp->exec_list, do_pty, (char *)args, *guest_addr, |
815 | a13a4126 | Jan Kiszka | htons(guest_port)); |
816 | a3d4af03 | bellard | } |
817 | e1c5a2b3 | aliguori | |
818 | e1c5a2b3 | aliguori | ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags) |
819 | e1c5a2b3 | aliguori | { |
820 | e1c5a2b3 | aliguori | if (so->s == -1 && so->extra) { |
821 | 2cc6e0a1 | Anthony Liguori | qemu_chr_fe_write(so->extra, buf, len); |
822 | e1c5a2b3 | aliguori | return len;
|
823 | e1c5a2b3 | aliguori | } |
824 | e1c5a2b3 | aliguori | |
825 | e1c5a2b3 | aliguori | return send(so->s, buf, len, flags);
|
826 | e1c5a2b3 | aliguori | } |
827 | e1c5a2b3 | aliguori | |
828 | a13a4126 | Jan Kiszka | static struct socket * |
829 | 460fec67 | Jan Kiszka | slirp_find_ctl_socket(Slirp *slirp, struct in_addr guest_addr, int guest_port) |
830 | e1c5a2b3 | aliguori | { |
831 | a13a4126 | Jan Kiszka | struct socket *so;
|
832 | e1c5a2b3 | aliguori | |
833 | 460fec67 | Jan Kiszka | for (so = slirp->tcb.so_next; so != &slirp->tcb; so = so->so_next) {
|
834 | a13a4126 | Jan Kiszka | if (so->so_faddr.s_addr == guest_addr.s_addr &&
|
835 | a13a4126 | Jan Kiszka | htons(so->so_fport) == guest_port) { |
836 | a13a4126 | Jan Kiszka | return so;
|
837 | a13a4126 | Jan Kiszka | } |
838 | a13a4126 | Jan Kiszka | } |
839 | a13a4126 | Jan Kiszka | return NULL; |
840 | e1c5a2b3 | aliguori | } |
841 | e1c5a2b3 | aliguori | |
842 | 9f8bd042 | Jan Kiszka | size_t slirp_socket_can_recv(Slirp *slirp, struct in_addr guest_addr,
|
843 | 9f8bd042 | Jan Kiszka | int guest_port)
|
844 | e1c5a2b3 | aliguori | { |
845 | e1c5a2b3 | aliguori | struct iovec iov[2]; |
846 | e1c5a2b3 | aliguori | struct socket *so;
|
847 | e1c5a2b3 | aliguori | |
848 | 460fec67 | Jan Kiszka | so = slirp_find_ctl_socket(slirp, guest_addr, guest_port); |
849 | e1c5a2b3 | aliguori | |
850 | e1c5a2b3 | aliguori | if (!so || so->so_state & SS_NOFDREF)
|
851 | e1c5a2b3 | aliguori | return 0; |
852 | e1c5a2b3 | aliguori | |
853 | e1c5a2b3 | aliguori | if (!CONN_CANFRCV(so) || so->so_snd.sb_cc >= (so->so_snd.sb_datalen/2)) |
854 | e1c5a2b3 | aliguori | return 0; |
855 | e1c5a2b3 | aliguori | |
856 | e1c5a2b3 | aliguori | return sopreprbuf(so, iov, NULL); |
857 | e1c5a2b3 | aliguori | } |
858 | e1c5a2b3 | aliguori | |
859 | 9f8bd042 | Jan Kiszka | void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr, int guest_port, |
860 | c92ef6a2 | Jan Kiszka | const uint8_t *buf, int size) |
861 | e1c5a2b3 | aliguori | { |
862 | e1c5a2b3 | aliguori | int ret;
|
863 | 460fec67 | Jan Kiszka | struct socket *so = slirp_find_ctl_socket(slirp, guest_addr, guest_port);
|
864 | a13a4126 | Jan Kiszka | |
865 | e1c5a2b3 | aliguori | if (!so)
|
866 | e1c5a2b3 | aliguori | return;
|
867 | e1c5a2b3 | aliguori | |
868 | 0580ac91 | blueswir1 | ret = soreadbuf(so, (const char *)buf, size); |
869 | e1c5a2b3 | aliguori | |
870 | e1c5a2b3 | aliguori | if (ret > 0) |
871 | e1c5a2b3 | aliguori | tcp_output(sototcpcb(so)); |
872 | e1c5a2b3 | aliguori | } |
873 | 062e5527 | aliguori | |
874 | 062e5527 | aliguori | static void slirp_tcp_save(QEMUFile *f, struct tcpcb *tp) |
875 | 062e5527 | aliguori | { |
876 | 062e5527 | aliguori | int i;
|
877 | 062e5527 | aliguori | |
878 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_state); |
879 | 062e5527 | aliguori | for (i = 0; i < TCPT_NTIMERS; i++) |
880 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_timer[i]); |
881 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_rxtshift); |
882 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_rxtcur); |
883 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_dupacks); |
884 | 062e5527 | aliguori | qemu_put_be16(f, tp->t_maxseg); |
885 | 062e5527 | aliguori | qemu_put_sbyte(f, tp->t_force); |
886 | 062e5527 | aliguori | qemu_put_be16(f, tp->t_flags); |
887 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_una); |
888 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_nxt); |
889 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_up); |
890 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_wl1); |
891 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_wl2); |
892 | 062e5527 | aliguori | qemu_put_be32(f, tp->iss); |
893 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_wnd); |
894 | 062e5527 | aliguori | qemu_put_be32(f, tp->rcv_wnd); |
895 | 062e5527 | aliguori | qemu_put_be32(f, tp->rcv_nxt); |
896 | 062e5527 | aliguori | qemu_put_be32(f, tp->rcv_up); |
897 | 062e5527 | aliguori | qemu_put_be32(f, tp->irs); |
898 | 062e5527 | aliguori | qemu_put_be32(f, tp->rcv_adv); |
899 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_max); |
900 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_cwnd); |
901 | 062e5527 | aliguori | qemu_put_be32(f, tp->snd_ssthresh); |
902 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_idle); |
903 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_rtt); |
904 | 062e5527 | aliguori | qemu_put_be32(f, tp->t_rtseq); |
905 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_srtt); |
906 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_rttvar); |
907 | 062e5527 | aliguori | qemu_put_be16(f, tp->t_rttmin); |
908 | 062e5527 | aliguori | qemu_put_be32(f, tp->max_sndwnd); |
909 | 062e5527 | aliguori | qemu_put_byte(f, tp->t_oobflags); |
910 | 062e5527 | aliguori | qemu_put_byte(f, tp->t_iobc); |
911 | 062e5527 | aliguori | qemu_put_sbe16(f, tp->t_softerror); |
912 | 062e5527 | aliguori | qemu_put_byte(f, tp->snd_scale); |
913 | 062e5527 | aliguori | qemu_put_byte(f, tp->rcv_scale); |
914 | 062e5527 | aliguori | qemu_put_byte(f, tp->request_r_scale); |
915 | 062e5527 | aliguori | qemu_put_byte(f, tp->requested_s_scale); |
916 | 062e5527 | aliguori | qemu_put_be32(f, tp->ts_recent); |
917 | 062e5527 | aliguori | qemu_put_be32(f, tp->ts_recent_age); |
918 | 062e5527 | aliguori | qemu_put_be32(f, tp->last_ack_sent); |
919 | 062e5527 | aliguori | } |
920 | 062e5527 | aliguori | |
921 | 062e5527 | aliguori | static void slirp_sbuf_save(QEMUFile *f, struct sbuf *sbuf) |
922 | 062e5527 | aliguori | { |
923 | 062e5527 | aliguori | uint32_t off; |
924 | 062e5527 | aliguori | |
925 | 062e5527 | aliguori | qemu_put_be32(f, sbuf->sb_cc); |
926 | 062e5527 | aliguori | qemu_put_be32(f, sbuf->sb_datalen); |
927 | 062e5527 | aliguori | off = (uint32_t)(sbuf->sb_wptr - sbuf->sb_data); |
928 | 062e5527 | aliguori | qemu_put_sbe32(f, off); |
929 | 062e5527 | aliguori | off = (uint32_t)(sbuf->sb_rptr - sbuf->sb_data); |
930 | 062e5527 | aliguori | qemu_put_sbe32(f, off); |
931 | 062e5527 | aliguori | qemu_put_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen); |
932 | 062e5527 | aliguori | } |
933 | 062e5527 | aliguori | |
934 | 062e5527 | aliguori | static void slirp_socket_save(QEMUFile *f, struct socket *so) |
935 | 062e5527 | aliguori | { |
936 | 062e5527 | aliguori | qemu_put_be32(f, so->so_urgc); |
937 | 062e5527 | aliguori | qemu_put_be32(f, so->so_faddr.s_addr); |
938 | 062e5527 | aliguori | qemu_put_be32(f, so->so_laddr.s_addr); |
939 | 062e5527 | aliguori | qemu_put_be16(f, so->so_fport); |
940 | 062e5527 | aliguori | qemu_put_be16(f, so->so_lport); |
941 | 062e5527 | aliguori | qemu_put_byte(f, so->so_iptos); |
942 | 062e5527 | aliguori | qemu_put_byte(f, so->so_emu); |
943 | 062e5527 | aliguori | qemu_put_byte(f, so->so_type); |
944 | 062e5527 | aliguori | qemu_put_be32(f, so->so_state); |
945 | 062e5527 | aliguori | slirp_sbuf_save(f, &so->so_rcv); |
946 | 062e5527 | aliguori | slirp_sbuf_save(f, &so->so_snd); |
947 | 062e5527 | aliguori | slirp_tcp_save(f, so->so_tcpcb); |
948 | 062e5527 | aliguori | } |
949 | 062e5527 | aliguori | |
950 | 0a1f851e | Jan Kiszka | static void slirp_bootp_save(QEMUFile *f, Slirp *slirp) |
951 | 0a1f851e | Jan Kiszka | { |
952 | 0a1f851e | Jan Kiszka | int i;
|
953 | 0a1f851e | Jan Kiszka | |
954 | 0a1f851e | Jan Kiszka | for (i = 0; i < NB_BOOTP_CLIENTS; i++) { |
955 | 0a1f851e | Jan Kiszka | qemu_put_be16(f, slirp->bootp_clients[i].allocated); |
956 | 0a1f851e | Jan Kiszka | qemu_put_buffer(f, slirp->bootp_clients[i].macaddr, 6);
|
957 | 0a1f851e | Jan Kiszka | } |
958 | 0a1f851e | Jan Kiszka | } |
959 | 0a1f851e | Jan Kiszka | |
960 | 062e5527 | aliguori | static void slirp_state_save(QEMUFile *f, void *opaque) |
961 | 062e5527 | aliguori | { |
962 | 460fec67 | Jan Kiszka | Slirp *slirp = opaque; |
963 | 062e5527 | aliguori | struct ex_list *ex_ptr;
|
964 | 062e5527 | aliguori | |
965 | 460fec67 | Jan Kiszka | for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
|
966 | 062e5527 | aliguori | if (ex_ptr->ex_pty == 3) { |
967 | 062e5527 | aliguori | struct socket *so;
|
968 | 460fec67 | Jan Kiszka | so = slirp_find_ctl_socket(slirp, ex_ptr->ex_addr, |
969 | 460fec67 | Jan Kiszka | ntohs(ex_ptr->ex_fport)); |
970 | 062e5527 | aliguori | if (!so)
|
971 | 062e5527 | aliguori | continue;
|
972 | 062e5527 | aliguori | |
973 | 062e5527 | aliguori | qemu_put_byte(f, 42);
|
974 | 062e5527 | aliguori | slirp_socket_save(f, so); |
975 | 062e5527 | aliguori | } |
976 | 062e5527 | aliguori | qemu_put_byte(f, 0);
|
977 | 285f7a62 | Jan Kiszka | |
978 | 460fec67 | Jan Kiszka | qemu_put_be16(f, slirp->ip_id); |
979 | 0a1f851e | Jan Kiszka | |
980 | 0a1f851e | Jan Kiszka | slirp_bootp_save(f, slirp); |
981 | 062e5527 | aliguori | } |
982 | 062e5527 | aliguori | |
983 | 062e5527 | aliguori | static void slirp_tcp_load(QEMUFile *f, struct tcpcb *tp) |
984 | 062e5527 | aliguori | { |
985 | 062e5527 | aliguori | int i;
|
986 | 062e5527 | aliguori | |
987 | 062e5527 | aliguori | tp->t_state = qemu_get_sbe16(f); |
988 | 062e5527 | aliguori | for (i = 0; i < TCPT_NTIMERS; i++) |
989 | 062e5527 | aliguori | tp->t_timer[i] = qemu_get_sbe16(f); |
990 | 062e5527 | aliguori | tp->t_rxtshift = qemu_get_sbe16(f); |
991 | 062e5527 | aliguori | tp->t_rxtcur = qemu_get_sbe16(f); |
992 | 062e5527 | aliguori | tp->t_dupacks = qemu_get_sbe16(f); |
993 | 062e5527 | aliguori | tp->t_maxseg = qemu_get_be16(f); |
994 | 062e5527 | aliguori | tp->t_force = qemu_get_sbyte(f); |
995 | 062e5527 | aliguori | tp->t_flags = qemu_get_be16(f); |
996 | 062e5527 | aliguori | tp->snd_una = qemu_get_be32(f); |
997 | 062e5527 | aliguori | tp->snd_nxt = qemu_get_be32(f); |
998 | 062e5527 | aliguori | tp->snd_up = qemu_get_be32(f); |
999 | 062e5527 | aliguori | tp->snd_wl1 = qemu_get_be32(f); |
1000 | 062e5527 | aliguori | tp->snd_wl2 = qemu_get_be32(f); |
1001 | 062e5527 | aliguori | tp->iss = qemu_get_be32(f); |
1002 | 062e5527 | aliguori | tp->snd_wnd = qemu_get_be32(f); |
1003 | 062e5527 | aliguori | tp->rcv_wnd = qemu_get_be32(f); |
1004 | 062e5527 | aliguori | tp->rcv_nxt = qemu_get_be32(f); |
1005 | 062e5527 | aliguori | tp->rcv_up = qemu_get_be32(f); |
1006 | 062e5527 | aliguori | tp->irs = qemu_get_be32(f); |
1007 | 062e5527 | aliguori | tp->rcv_adv = qemu_get_be32(f); |
1008 | 062e5527 | aliguori | tp->snd_max = qemu_get_be32(f); |
1009 | 062e5527 | aliguori | tp->snd_cwnd = qemu_get_be32(f); |
1010 | 062e5527 | aliguori | tp->snd_ssthresh = qemu_get_be32(f); |
1011 | 062e5527 | aliguori | tp->t_idle = qemu_get_sbe16(f); |
1012 | 062e5527 | aliguori | tp->t_rtt = qemu_get_sbe16(f); |
1013 | 062e5527 | aliguori | tp->t_rtseq = qemu_get_be32(f); |
1014 | 062e5527 | aliguori | tp->t_srtt = qemu_get_sbe16(f); |
1015 | 062e5527 | aliguori | tp->t_rttvar = qemu_get_sbe16(f); |
1016 | 062e5527 | aliguori | tp->t_rttmin = qemu_get_be16(f); |
1017 | 062e5527 | aliguori | tp->max_sndwnd = qemu_get_be32(f); |
1018 | 062e5527 | aliguori | tp->t_oobflags = qemu_get_byte(f); |
1019 | 062e5527 | aliguori | tp->t_iobc = qemu_get_byte(f); |
1020 | 062e5527 | aliguori | tp->t_softerror = qemu_get_sbe16(f); |
1021 | 062e5527 | aliguori | tp->snd_scale = qemu_get_byte(f); |
1022 | 062e5527 | aliguori | tp->rcv_scale = qemu_get_byte(f); |
1023 | 062e5527 | aliguori | tp->request_r_scale = qemu_get_byte(f); |
1024 | 062e5527 | aliguori | tp->requested_s_scale = qemu_get_byte(f); |
1025 | 062e5527 | aliguori | tp->ts_recent = qemu_get_be32(f); |
1026 | 062e5527 | aliguori | tp->ts_recent_age = qemu_get_be32(f); |
1027 | 062e5527 | aliguori | tp->last_ack_sent = qemu_get_be32(f); |
1028 | 062e5527 | aliguori | tcp_template(tp); |
1029 | 062e5527 | aliguori | } |
1030 | 062e5527 | aliguori | |
1031 | 062e5527 | aliguori | static int slirp_sbuf_load(QEMUFile *f, struct sbuf *sbuf) |
1032 | 062e5527 | aliguori | { |
1033 | 062e5527 | aliguori | uint32_t off, sb_cc, sb_datalen; |
1034 | 062e5527 | aliguori | |
1035 | 062e5527 | aliguori | sb_cc = qemu_get_be32(f); |
1036 | 062e5527 | aliguori | sb_datalen = qemu_get_be32(f); |
1037 | 062e5527 | aliguori | |
1038 | 062e5527 | aliguori | sbreserve(sbuf, sb_datalen); |
1039 | 062e5527 | aliguori | |
1040 | 062e5527 | aliguori | if (sbuf->sb_datalen != sb_datalen)
|
1041 | 062e5527 | aliguori | return -ENOMEM;
|
1042 | 062e5527 | aliguori | |
1043 | 062e5527 | aliguori | sbuf->sb_cc = sb_cc; |
1044 | 062e5527 | aliguori | |
1045 | 062e5527 | aliguori | off = qemu_get_sbe32(f); |
1046 | 062e5527 | aliguori | sbuf->sb_wptr = sbuf->sb_data + off; |
1047 | 062e5527 | aliguori | off = qemu_get_sbe32(f); |
1048 | 062e5527 | aliguori | sbuf->sb_rptr = sbuf->sb_data + off; |
1049 | 062e5527 | aliguori | qemu_get_buffer(f, (unsigned char*)sbuf->sb_data, sbuf->sb_datalen); |
1050 | 062e5527 | aliguori | |
1051 | 062e5527 | aliguori | return 0; |
1052 | 062e5527 | aliguori | } |
1053 | 062e5527 | aliguori | |
1054 | 062e5527 | aliguori | static int slirp_socket_load(QEMUFile *f, struct socket *so) |
1055 | 062e5527 | aliguori | { |
1056 | 062e5527 | aliguori | if (tcp_attach(so) < 0) |
1057 | 062e5527 | aliguori | return -ENOMEM;
|
1058 | 062e5527 | aliguori | |
1059 | 062e5527 | aliguori | so->so_urgc = qemu_get_be32(f); |
1060 | 062e5527 | aliguori | so->so_faddr.s_addr = qemu_get_be32(f); |
1061 | 062e5527 | aliguori | so->so_laddr.s_addr = qemu_get_be32(f); |
1062 | 062e5527 | aliguori | so->so_fport = qemu_get_be16(f); |
1063 | 062e5527 | aliguori | so->so_lport = qemu_get_be16(f); |
1064 | 062e5527 | aliguori | so->so_iptos = qemu_get_byte(f); |
1065 | 062e5527 | aliguori | so->so_emu = qemu_get_byte(f); |
1066 | 062e5527 | aliguori | so->so_type = qemu_get_byte(f); |
1067 | 062e5527 | aliguori | so->so_state = qemu_get_be32(f); |
1068 | 062e5527 | aliguori | if (slirp_sbuf_load(f, &so->so_rcv) < 0) |
1069 | 062e5527 | aliguori | return -ENOMEM;
|
1070 | 062e5527 | aliguori | if (slirp_sbuf_load(f, &so->so_snd) < 0) |
1071 | 062e5527 | aliguori | return -ENOMEM;
|
1072 | 062e5527 | aliguori | slirp_tcp_load(f, so->so_tcpcb); |
1073 | 062e5527 | aliguori | |
1074 | 062e5527 | aliguori | return 0; |
1075 | 062e5527 | aliguori | } |
1076 | 062e5527 | aliguori | |
1077 | 0a1f851e | Jan Kiszka | static void slirp_bootp_load(QEMUFile *f, Slirp *slirp) |
1078 | 0a1f851e | Jan Kiszka | { |
1079 | 0a1f851e | Jan Kiszka | int i;
|
1080 | 0a1f851e | Jan Kiszka | |
1081 | 0a1f851e | Jan Kiszka | for (i = 0; i < NB_BOOTP_CLIENTS; i++) { |
1082 | 0a1f851e | Jan Kiszka | slirp->bootp_clients[i].allocated = qemu_get_be16(f); |
1083 | 0a1f851e | Jan Kiszka | qemu_get_buffer(f, slirp->bootp_clients[i].macaddr, 6);
|
1084 | 0a1f851e | Jan Kiszka | } |
1085 | 0a1f851e | Jan Kiszka | } |
1086 | 0a1f851e | Jan Kiszka | |
1087 | 062e5527 | aliguori | static int slirp_state_load(QEMUFile *f, void *opaque, int version_id) |
1088 | 062e5527 | aliguori | { |
1089 | 460fec67 | Jan Kiszka | Slirp *slirp = opaque; |
1090 | 062e5527 | aliguori | struct ex_list *ex_ptr;
|
1091 | 062e5527 | aliguori | |
1092 | b0e04867 | Blue Swirl | while (qemu_get_byte(f)) {
|
1093 | 062e5527 | aliguori | int ret;
|
1094 | 460fec67 | Jan Kiszka | struct socket *so = socreate(slirp);
|
1095 | 062e5527 | aliguori | |
1096 | 062e5527 | aliguori | if (!so)
|
1097 | 062e5527 | aliguori | return -ENOMEM;
|
1098 | 062e5527 | aliguori | |
1099 | 062e5527 | aliguori | ret = slirp_socket_load(f, so); |
1100 | 062e5527 | aliguori | |
1101 | 062e5527 | aliguori | if (ret < 0) |
1102 | 062e5527 | aliguori | return ret;
|
1103 | 062e5527 | aliguori | |
1104 | 460fec67 | Jan Kiszka | if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) !=
|
1105 | 460fec67 | Jan Kiszka | slirp->vnetwork_addr.s_addr) { |
1106 | 062e5527 | aliguori | return -EINVAL;
|
1107 | a13a4126 | Jan Kiszka | } |
1108 | 460fec67 | Jan Kiszka | for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
1109 | 062e5527 | aliguori | if (ex_ptr->ex_pty == 3 && |
1110 | a13a4126 | Jan Kiszka | so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr && |
1111 | a13a4126 | Jan Kiszka | so->so_fport == ex_ptr->ex_fport) { |
1112 | 062e5527 | aliguori | break;
|
1113 | a13a4126 | Jan Kiszka | } |
1114 | a13a4126 | Jan Kiszka | } |
1115 | 062e5527 | aliguori | if (!ex_ptr)
|
1116 | 062e5527 | aliguori | return -EINVAL;
|
1117 | 062e5527 | aliguori | |
1118 | 0580ac91 | blueswir1 | so->extra = (void *)ex_ptr->ex_exec;
|
1119 | 062e5527 | aliguori | } |
1120 | 062e5527 | aliguori | |
1121 | 285f7a62 | Jan Kiszka | if (version_id >= 2) { |
1122 | 460fec67 | Jan Kiszka | slirp->ip_id = qemu_get_be16(f); |
1123 | 285f7a62 | Jan Kiszka | } |
1124 | 285f7a62 | Jan Kiszka | |
1125 | 0a1f851e | Jan Kiszka | if (version_id >= 3) { |
1126 | 0a1f851e | Jan Kiszka | slirp_bootp_load(f, slirp); |
1127 | 0a1f851e | Jan Kiszka | } |
1128 | 0a1f851e | Jan Kiszka | |
1129 | 062e5527 | aliguori | return 0; |
1130 | 062e5527 | aliguori | } |