David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * inet and unix socket functions for qemu |
| 3 | * |
| 4 | * (c) 2008 Gerd Hoffmann <kraxel@redhat.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; under version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | #include <stdio.h> |
| 16 | #include <stdlib.h> |
| 17 | #include <string.h> |
| 18 | #include <ctype.h> |
| 19 | #include <errno.h> |
| 20 | #include <unistd.h> |
| 21 | |
| 22 | #include "qemu_socket.h" |
| 23 | #include "qemu-common.h" /* for qemu_isdigit */ |
| 24 | |
| 25 | #ifndef AI_ADDRCONFIG |
| 26 | # define AI_ADDRCONFIG 0 |
| 27 | #endif |
| 28 | |
David 'Digit' Turner | ca6a2e0 | 2010-12-23 00:59:44 +0100 | [diff] [blame] | 29 | #ifndef INET6_ADDRSTRLEN |
| 30 | # define INET6_ADDRSTRLEN 46 |
| 31 | #endif |
| 32 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 33 | static int sockets_debug = 0; |
| 34 | static const int on=1, off=0; |
| 35 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 36 | /* used temporarely until all users are converted to QemuOpts */ |
| 37 | static QemuOptsList dummy_opts = { |
| 38 | .name = "dummy", |
| 39 | .head = QTAILQ_HEAD_INITIALIZER(dummy_opts.head), |
| 40 | .desc = { |
| 41 | { |
| 42 | .name = "path", |
| 43 | .type = QEMU_OPT_STRING, |
| 44 | },{ |
| 45 | .name = "host", |
| 46 | .type = QEMU_OPT_STRING, |
| 47 | },{ |
| 48 | .name = "port", |
| 49 | .type = QEMU_OPT_STRING, |
| 50 | },{ |
| 51 | .name = "to", |
| 52 | .type = QEMU_OPT_NUMBER, |
| 53 | },{ |
| 54 | .name = "ipv4", |
| 55 | .type = QEMU_OPT_BOOL, |
| 56 | },{ |
| 57 | .name = "ipv6", |
| 58 | .type = QEMU_OPT_BOOL, |
David 'Digit' Turner | 8423ffa | 2010-12-23 00:57:28 +0100 | [diff] [blame] | 59 | #ifdef CONFIG_ANDROID |
| 60 | },{ |
| 61 | .name = "socket", |
| 62 | .type = QEMU_OPT_NUMBER, |
| 63 | #endif |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 64 | }, |
| 65 | { /* end if list */ } |
| 66 | }, |
| 67 | }; |
| 68 | |
| 69 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 70 | static const char *sock_address_strfamily(SockAddress *s) |
| 71 | { |
| 72 | switch (sock_address_get_family(s)) { |
| 73 | case SOCKET_IN6: return "ipv6"; |
| 74 | case SOCKET_INET: return "ipv4"; |
| 75 | case SOCKET_UNIX: return "unix"; |
| 76 | default: return "????"; |
| 77 | } |
| 78 | } |
| 79 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 80 | int inet_listen_opts(QemuOpts *opts, int port_offset) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 81 | { |
| 82 | SockAddress** list; |
| 83 | SockAddress* e; |
| 84 | unsigned flags = SOCKET_LIST_PASSIVE; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 85 | const char *addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 86 | char port[33]; |
| 87 | char uaddr[256+1]; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 88 | char uport[33]; |
| 89 | int slisten,to,try_next,nn; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 90 | |
David 'Digit' Turner | 8423ffa | 2010-12-23 00:57:28 +0100 | [diff] [blame] | 91 | #ifdef CONFIG_ANDROID |
| 92 | const char* socket_fd = qemu_opt_get(opts, "socket"); |
| 93 | if (socket_fd) { |
| 94 | return atoi(socket_fd); |
| 95 | } |
| 96 | #endif |
| 97 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 98 | if ((qemu_opt_get(opts, "host") == NULL) || |
| 99 | (qemu_opt_get(opts, "port") == NULL)) { |
| 100 | fprintf(stderr, "%s: host and/or port not specified\n", __FUNCTION__); |
| 101 | return -1; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 102 | } |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 103 | pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); |
| 104 | addr = qemu_opt_get(opts, "host"); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 105 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 106 | to = qemu_opt_get_number(opts, "to", 0); |
| 107 | if (qemu_opt_get_bool(opts, "ipv4", 0)) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 108 | flags |= SOCKET_LIST_FORCE_INET; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 109 | if (qemu_opt_get_bool(opts, "ipv6", 0)) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 110 | flags |= SOCKET_LIST_FORCE_IN6; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 111 | |
| 112 | /* lookup */ |
| 113 | if (port_offset) |
| 114 | snprintf(port, sizeof(port), "%d", atoi(port) + port_offset); |
| 115 | |
| 116 | list = sock_address_list_create( strlen(addr) ? addr : NULL, |
| 117 | port, |
| 118 | flags ); |
| 119 | if (list == NULL) { |
| 120 | fprintf(stderr,"%s: getaddrinfo(%s,%s): %s\n", __FUNCTION__, |
| 121 | addr, port, errno_str); |
| 122 | return -1; |
| 123 | } |
| 124 | |
| 125 | /* create socket + bind */ |
| 126 | for (nn = 0; list[nn] != NULL; nn++) { |
| 127 | SocketFamily family; |
| 128 | |
| 129 | e = list[nn]; |
| 130 | family = sock_address_get_family(e); |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 131 | |
| 132 | sock_address_get_numeric_info(e, uaddr, sizeof uaddr, uport, sizeof uport); |
| 133 | slisten = socket_create(family, SOCKET_STREAM); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 134 | if (slisten < 0) { |
| 135 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, |
| 136 | sock_address_strfamily(e), errno_str); |
| 137 | continue; |
| 138 | } |
| 139 | |
| 140 | socket_set_xreuseaddr(slisten); |
| 141 | #ifdef IPV6_V6ONLY |
| 142 | /* listen on both ipv4 and ipv6 */ |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 143 | if (family == SOCKET_IN6) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 144 | socket_set_ipv6only(slisten); |
| 145 | } |
| 146 | #endif |
| 147 | |
| 148 | for (;;) { |
| 149 | if (socket_bind(slisten, e) == 0) { |
| 150 | if (sockets_debug) |
| 151 | fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__, |
| 152 | sock_address_strfamily(e), uaddr, sock_address_get_port(e)); |
| 153 | goto listen; |
| 154 | } |
| 155 | socket_close(slisten); |
| 156 | try_next = to && (sock_address_get_port(e) <= to + port_offset); |
| 157 | if (!try_next || sockets_debug) |
| 158 | fprintf(stderr,"%s: bind(%s,%s,%d): %s\n", __FUNCTION__, |
| 159 | sock_address_strfamily(e), uaddr, sock_address_get_port(e), |
| 160 | strerror(errno)); |
| 161 | if (try_next) { |
| 162 | sock_address_set_port(e, sock_address_get_port(e) + 1); |
| 163 | continue; |
| 164 | } |
| 165 | break; |
| 166 | } |
| 167 | } |
| 168 | sock_address_list_free(list); |
| 169 | fprintf(stderr, "%s: FAILED\n", __FUNCTION__); |
| 170 | return -1; |
| 171 | |
| 172 | listen: |
| 173 | if (socket_listen(slisten,1) != 0) { |
| 174 | perror("listen"); |
| 175 | socket_close(slisten); |
| 176 | return -1; |
| 177 | } |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 178 | snprintf(uport, sizeof(uport), "%d", sock_address_get_port(e) - port_offset); |
| 179 | qemu_opt_set(opts, "host", uaddr); |
| 180 | qemu_opt_set(opts, "port", uport); |
| 181 | qemu_opt_set(opts, "ipv6", (e->family == SOCKET_IN6) ? "on" : "off"); |
| 182 | qemu_opt_set(opts, "ipv4", (e->family != SOCKET_IN6) ? "on" : "off"); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 183 | sock_address_list_free(list); |
| 184 | return slisten; |
| 185 | } |
| 186 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 187 | int inet_connect_opts(QemuOpts *opts) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 188 | { |
| 189 | SockAddress** list; |
| 190 | SockAddress* e; |
| 191 | unsigned flags = 0; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 192 | const char *addr; |
| 193 | const char *port; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 194 | int sock, nn; |
| 195 | |
David 'Digit' Turner | 8423ffa | 2010-12-23 00:57:28 +0100 | [diff] [blame] | 196 | #ifdef CONFIG_ANDROID |
| 197 | const char* socket_fd = qemu_opt_get(opts, "socket"); |
| 198 | if (socket_fd) { |
| 199 | return atoi(socket_fd); |
| 200 | } |
| 201 | #endif |
| 202 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 203 | addr = qemu_opt_get(opts, "host"); |
| 204 | port = qemu_opt_get(opts, "port"); |
| 205 | if (addr == NULL || port == NULL) { |
| 206 | fprintf(stderr, "inet_connect: host and/or port not specified\n"); |
| 207 | return -1; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 208 | } |
| 209 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 210 | if (qemu_opt_get_bool(opts, "ipv4", 0)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 211 | flags &= SOCKET_LIST_FORCE_IN6; |
| 212 | flags |= SOCKET_LIST_FORCE_INET; |
| 213 | } |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 214 | if (qemu_opt_get_bool(opts, "ipv6", 0)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 215 | flags &= SOCKET_LIST_FORCE_INET; |
| 216 | flags |= SOCKET_LIST_FORCE_IN6; |
| 217 | } |
| 218 | |
| 219 | /* lookup */ |
| 220 | list = sock_address_list_create(addr, port, flags); |
| 221 | if (list == NULL) { |
| 222 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", |
| 223 | addr, port, errno_str); |
| 224 | return -1; |
| 225 | } |
| 226 | |
| 227 | for (nn = 0; list[nn] != NULL; nn++) { |
| 228 | e = list[nn]; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 229 | sock = socket_create(sock_address_get_family(e), SOCKET_STREAM); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 230 | if (sock < 0) { |
| 231 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, |
| 232 | sock_address_strfamily(e), errno_str); |
| 233 | continue; |
| 234 | } |
| 235 | socket_set_xreuseaddr(sock); |
| 236 | |
| 237 | /* connect to peer */ |
| 238 | if (socket_connect(sock,e) < 0) { |
| 239 | if (sockets_debug) |
| 240 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, |
| 241 | sock_address_strfamily(e), |
| 242 | sock_address_to_string(e), addr, port, strerror(errno)); |
| 243 | socket_close(sock); |
| 244 | continue; |
| 245 | } |
| 246 | if (sockets_debug) |
| 247 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): OK\n", __FUNCTION__, |
| 248 | sock_address_strfamily(e), |
| 249 | sock_address_to_string(e), addr, port); |
| 250 | |
| 251 | goto EXIT; |
| 252 | } |
| 253 | sock = -1; |
| 254 | EXIT: |
| 255 | sock_address_list_free(list); |
| 256 | return sock; |
| 257 | } |
| 258 | |
David 'Digit' Turner | ca6a2e0 | 2010-12-23 00:59:44 +0100 | [diff] [blame] | 259 | int inet_dgram_opts(QemuOpts *opts) |
| 260 | { |
| 261 | SockAddress** peer_list = NULL; |
| 262 | SockAddress** local_list = NULL; |
| 263 | SockAddress* e; |
| 264 | unsigned flags = 0; |
| 265 | const char *addr; |
| 266 | const char *port; |
| 267 | char uaddr[INET6_ADDRSTRLEN+1]; |
| 268 | char uport[33]; |
| 269 | int sock = -1; |
| 270 | int nn; |
| 271 | |
| 272 | /* lookup peer addr */ |
| 273 | addr = qemu_opt_get(opts, "host"); |
| 274 | port = qemu_opt_get(opts, "port"); |
| 275 | if (addr == NULL || strlen(addr) == 0) { |
| 276 | addr = "localhost"; |
| 277 | } |
| 278 | if (port == NULL || strlen(port) == 0) { |
| 279 | fprintf(stderr, "inet_dgram: port not specified\n"); |
| 280 | return -1; |
| 281 | } |
| 282 | |
| 283 | flags = SOCKET_LIST_DGRAM; |
| 284 | if (qemu_opt_get_bool(opts, "ipv4", 0)) { |
| 285 | flags &= SOCKET_LIST_FORCE_IN6; |
| 286 | flags |= SOCKET_LIST_FORCE_INET; |
| 287 | } |
| 288 | if (qemu_opt_get_bool(opts, "ipv6", 0)) { |
| 289 | flags &= SOCKET_LIST_FORCE_INET; |
| 290 | flags |= SOCKET_LIST_FORCE_IN6; |
| 291 | } |
| 292 | |
| 293 | peer_list = sock_address_list_create(addr, port, flags); |
| 294 | if (peer_list == NULL) { |
| 295 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", |
| 296 | addr, port, errno_str); |
| 297 | return -1; |
| 298 | } |
| 299 | |
| 300 | /* lookup local addr */ |
| 301 | addr = qemu_opt_get(opts, "localaddr"); |
| 302 | port = qemu_opt_get(opts, "localport"); |
| 303 | if (addr == NULL || strlen(addr) == 0) { |
| 304 | addr = NULL; |
| 305 | } |
| 306 | if (!port || strlen(port) == 0) |
| 307 | port = "0"; |
| 308 | |
| 309 | flags = SOCKET_LIST_DGRAM | SOCKET_LIST_PASSIVE; |
| 310 | local_list = sock_address_list_create(addr, port, flags); |
| 311 | if (local_list == NULL) { |
| 312 | fprintf(stderr,"getaddrinfo(%s,%s): %s\n", |
| 313 | addr, port, errno_str); |
| 314 | goto EXIT; |
| 315 | } |
| 316 | |
| 317 | if (sock_address_get_numeric_info(local_list[0], |
| 318 | uaddr, INET6_ADDRSTRLEN, |
| 319 | uport, 32)) { |
| 320 | fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__); |
| 321 | goto EXIT; |
| 322 | } |
| 323 | |
| 324 | for (nn = 0; peer_list[nn] != NULL; nn++) { |
| 325 | SockAddress *local = local_list[0]; |
| 326 | e = peer_list[nn]; |
| 327 | sock = socket_create(sock_address_get_family(e), SOCKET_DGRAM); |
| 328 | if (sock < 0) { |
| 329 | fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__, |
| 330 | sock_address_strfamily(e), errno_str); |
| 331 | continue; |
| 332 | } |
| 333 | socket_set_xreuseaddr(sock); |
| 334 | |
| 335 | /* bind socket */ |
| 336 | if (socket_bind(sock, local) < 0) { |
| 337 | fprintf(stderr,"%s: bind(%s,%s,%s): OK\n", __FUNCTION__, |
| 338 | sock_address_strfamily(local), addr, port); |
| 339 | socket_close(sock); |
| 340 | continue; |
| 341 | } |
| 342 | |
| 343 | /* connect to peer */ |
| 344 | if (socket_connect(sock,e) < 0) { |
| 345 | if (sockets_debug) |
| 346 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__, |
| 347 | sock_address_strfamily(e), |
| 348 | sock_address_to_string(e), addr, port, strerror(errno)); |
| 349 | socket_close(sock); |
| 350 | continue; |
| 351 | } |
| 352 | if (sockets_debug) |
| 353 | fprintf(stderr, "%s: connect(%s,%s,%s,%s): OK\n", __FUNCTION__, |
| 354 | sock_address_strfamily(e), |
| 355 | sock_address_to_string(e), addr, port); |
| 356 | |
| 357 | goto EXIT; |
| 358 | } |
| 359 | sock = -1; |
| 360 | EXIT: |
| 361 | if (local_list) |
| 362 | sock_address_list_free(local_list); |
| 363 | if (peer_list) |
| 364 | sock_address_list_free(peer_list); |
| 365 | return sock; |
| 366 | } |
David 'Digit' Turner | 8423ffa | 2010-12-23 00:57:28 +0100 | [diff] [blame] | 367 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 368 | /* compatibility wrapper */ |
| 369 | static int inet_parse(QemuOpts *opts, const char *str) |
| 370 | { |
| 371 | const char *optstr, *h; |
| 372 | char addr[64]; |
| 373 | char port[33]; |
| 374 | int pos; |
| 375 | |
| 376 | /* parse address */ |
| 377 | if (str[0] == ':') { |
| 378 | /* no host given */ |
| 379 | addr[0] = '\0'; |
| 380 | if (1 != sscanf(str,":%32[^,]%n",port,&pos)) { |
| 381 | fprintf(stderr, "%s: portonly parse error (%s)\n", |
| 382 | __FUNCTION__, str); |
| 383 | return -1; |
| 384 | } |
| 385 | } else if (str[0] == '[') { |
| 386 | /* IPv6 addr */ |
| 387 | if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) { |
| 388 | fprintf(stderr, "%s: ipv6 parse error (%s)\n", |
| 389 | __FUNCTION__, str); |
| 390 | return -1; |
| 391 | } |
| 392 | qemu_opt_set(opts, "ipv6", "on"); |
| 393 | } else if (qemu_isdigit(str[0])) { |
| 394 | /* IPv4 addr */ |
| 395 | if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) { |
| 396 | fprintf(stderr, "%s: ipv4 parse error (%s)\n", |
| 397 | __FUNCTION__, str); |
| 398 | return -1; |
| 399 | } |
| 400 | qemu_opt_set(opts, "ipv4", "on"); |
| 401 | } else { |
| 402 | /* hostname */ |
| 403 | if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) { |
| 404 | fprintf(stderr, "%s: hostname parse error (%s)\n", |
| 405 | __FUNCTION__, str); |
| 406 | return -1; |
| 407 | } |
| 408 | } |
| 409 | qemu_opt_set(opts, "host", addr); |
| 410 | qemu_opt_set(opts, "port", port); |
| 411 | |
| 412 | /* parse options */ |
| 413 | optstr = str + pos; |
| 414 | h = strstr(optstr, ",to="); |
| 415 | if (h) |
| 416 | qemu_opt_set(opts, "to", h+4); |
| 417 | if (strstr(optstr, ",ipv4")) |
| 418 | qemu_opt_set(opts, "ipv4", "on"); |
| 419 | if (strstr(optstr, ",ipv6")) |
| 420 | qemu_opt_set(opts, "ipv6", "on"); |
David 'Digit' Turner | 8423ffa | 2010-12-23 00:57:28 +0100 | [diff] [blame] | 421 | #ifdef CONFIG_ANDROID |
| 422 | h = strstr(optstr, ",socket="); |
| 423 | if (h) { |
| 424 | int socket_fd; |
| 425 | char str_fd[12]; |
| 426 | if (1 != sscanf(h+7,"%d",&socket_fd)) { |
| 427 | fprintf(stderr,"%s: socket fd parse error (%s)\n", |
| 428 | __FUNCTION__, h+7); |
| 429 | return -1; |
| 430 | } |
| 431 | if (socket_fd < 0 || socket_fd >= INT_MAX) { |
| 432 | fprintf(stderr,"%s: socket fd range error (%d)\n", |
| 433 | __FUNCTION__, socket_fd); |
| 434 | return -1; |
| 435 | } |
| 436 | snprintf(str_fd, sizeof str_fd, "%d", socket_fd); |
| 437 | qemu_opt_set(opts, "socket", str_fd); |
| 438 | } |
| 439 | #endif |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 440 | return 0; |
| 441 | } |
| 442 | |
| 443 | int inet_listen(const char *str, char *ostr, int olen, |
| 444 | int socktype, int port_offset) |
| 445 | { |
| 446 | QemuOpts *opts; |
| 447 | char *optstr; |
| 448 | int sock = -1; |
| 449 | |
| 450 | opts = qemu_opts_create(&dummy_opts, NULL, 0); |
| 451 | if (inet_parse(opts, str) == 0) { |
| 452 | sock = inet_listen_opts(opts, port_offset); |
| 453 | if (sock != -1 && ostr) { |
| 454 | optstr = strchr(str, ','); |
| 455 | if (qemu_opt_get_bool(opts, "ipv6", 0)) { |
| 456 | snprintf(ostr, olen, "[%s]:%s%s", |
| 457 | qemu_opt_get(opts, "host"), |
| 458 | qemu_opt_get(opts, "port"), |
| 459 | optstr ? optstr : ""); |
| 460 | } else { |
| 461 | snprintf(ostr, olen, "%s:%s%s", |
| 462 | qemu_opt_get(opts, "host"), |
| 463 | qemu_opt_get(opts, "port"), |
| 464 | optstr ? optstr : ""); |
| 465 | } |
| 466 | } |
| 467 | } |
| 468 | qemu_opts_del(opts); |
| 469 | return sock; |
| 470 | } |
| 471 | |
| 472 | int inet_connect(const char *str, int socktype) |
| 473 | { |
| 474 | QemuOpts *opts; |
| 475 | int sock = -1; |
| 476 | |
| 477 | opts = qemu_opts_create(&dummy_opts, NULL, 0); |
| 478 | if (inet_parse(opts, str) == 0) |
| 479 | sock = inet_connect_opts(opts); |
| 480 | qemu_opts_del(opts); |
| 481 | return sock; |
| 482 | } |
| 483 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 484 | #ifndef _WIN32 |
| 485 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 486 | int unix_listen_opts(QemuOpts *opts) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 487 | { |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 488 | const char *path = qemu_opt_get(opts, "path"); |
| 489 | char unpath[PATH_MAX]; |
| 490 | const char *upath; |
| 491 | int sock, fd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 492 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 493 | if (path && strlen(path)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 494 | upath = path; |
| 495 | } else { |
| 496 | char *tmpdir = getenv("TMPDIR"); |
| 497 | snprintf(unpath, sizeof(unpath), "%s/qemu-socket-XXXXXX", |
| 498 | tmpdir ? tmpdir : "/tmp"); |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 499 | upath = unpath; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 500 | /* |
| 501 | * This dummy fd usage silences the mktemp() unsecure warning. |
| 502 | * Using mkstemp() doesn't make things more secure here |
| 503 | * though. bind() complains about existing files, so we have |
| 504 | * to unlink first and thus re-open the race window. The |
| 505 | * worst case possible is bind() failing, i.e. a DoS attack. |
| 506 | */ |
| 507 | fd = mkstemp(unpath); close(fd); |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 508 | qemu_opt_set(opts, "path", unpath); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 509 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 510 | |
| 511 | sock = socket_unix_server(upath, SOCKET_STREAM); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 512 | |
| 513 | if (sock < 0) { |
| 514 | fprintf(stderr, "bind(unix:%s): %s\n", upath, errno_str); |
| 515 | goto err; |
| 516 | } |
| 517 | |
| 518 | if (sockets_debug) |
| 519 | fprintf(stderr, "bind(unix:%s): OK\n", upath); |
| 520 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 521 | return sock; |
| 522 | |
| 523 | err: |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 524 | socket_close(sock); |
| 525 | return -1; |
| 526 | } |
| 527 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 528 | int unix_connect_opts(QemuOpts *opts) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 529 | { |
| 530 | SockAddress un; |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 531 | const char *path = qemu_opt_get(opts, "path"); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 532 | int ret, sock; |
| 533 | |
| 534 | sock = socket_create_unix(SOCKET_STREAM); |
| 535 | if (sock < 0) { |
| 536 | perror("socket(unix)"); |
| 537 | return -1; |
| 538 | } |
| 539 | |
| 540 | sock_address_init_unix(&un, path); |
| 541 | ret = socket_connect(sock, &un); |
| 542 | sock_address_done(&un); |
| 543 | if (ret < 0) { |
| 544 | fprintf(stderr, "connect(unix:%s): %s\n", path, errno_str); |
| 545 | return -1; |
| 546 | } |
| 547 | |
| 548 | |
| 549 | if (sockets_debug) |
| 550 | fprintf(stderr, "connect(unix:%s): OK\n", path); |
| 551 | return sock; |
| 552 | } |
| 553 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 554 | /* compatibility wrapper */ |
| 555 | int unix_listen(const char *str, char *ostr, int olen) |
| 556 | { |
| 557 | QemuOpts *opts; |
| 558 | char *path, *optstr; |
| 559 | int sock, len; |
| 560 | |
| 561 | opts = qemu_opts_create(&dummy_opts, NULL, 0); |
| 562 | |
| 563 | optstr = strchr(str, ','); |
| 564 | if (optstr) { |
| 565 | len = optstr - str; |
| 566 | if (len) { |
| 567 | path = qemu_malloc(len+1); |
| 568 | snprintf(path, len+1, "%.*s", len, str); |
| 569 | qemu_opt_set(opts, "path", path); |
| 570 | qemu_free(path); |
| 571 | } |
| 572 | } else { |
| 573 | qemu_opt_set(opts, "path", str); |
| 574 | } |
| 575 | |
| 576 | sock = unix_listen_opts(opts); |
| 577 | |
| 578 | if (sock != -1 && ostr) |
| 579 | snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); |
| 580 | qemu_opts_del(opts); |
| 581 | return sock; |
| 582 | } |
| 583 | |
| 584 | int unix_connect(const char *path) |
| 585 | { |
| 586 | QemuOpts *opts; |
| 587 | int sock; |
| 588 | |
| 589 | opts = qemu_opts_create(&dummy_opts, NULL, 0); |
| 590 | qemu_opt_set(opts, "path", path); |
| 591 | sock = unix_connect_opts(opts); |
| 592 | qemu_opts_del(opts); |
| 593 | return sock; |
| 594 | } |
| 595 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 596 | #else |
| 597 | |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 598 | int unix_listen_opts(QemuOpts *opts) |
| 599 | { |
| 600 | fprintf(stderr, "unix sockets are not available on windows\n"); |
| 601 | return -1; |
| 602 | } |
| 603 | |
| 604 | int unix_connect_opts(QemuOpts *opts) |
| 605 | { |
| 606 | fprintf(stderr, "unix sockets are not available on windows\n"); |
| 607 | return -1; |
| 608 | } |
| 609 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 610 | int unix_listen(const char *path, char *ostr, int olen) |
| 611 | { |
| 612 | fprintf(stderr, "unix sockets are not available on windows\n"); |
| 613 | return -1; |
| 614 | } |
| 615 | |
| 616 | int unix_connect(const char *path) |
| 617 | { |
| 618 | fprintf(stderr, "unix sockets are not available on windows\n"); |
| 619 | return -1; |
| 620 | } |
| 621 | |
| 622 | #endif |
David Turner | 315ceb8 | 2010-09-10 14:15:17 +0200 | [diff] [blame] | 623 | |
| 624 | #ifndef CONFIG_ANDROID /* see sockets.c */ |
| 625 | #ifdef _WIN32 |
| 626 | static void socket_cleanup(void) |
| 627 | { |
| 628 | WSACleanup(); |
| 629 | } |
| 630 | #endif |
| 631 | |
| 632 | int socket_init(void) |
| 633 | { |
| 634 | #ifdef _WIN32 |
| 635 | WSADATA Data; |
| 636 | int ret, err; |
| 637 | |
| 638 | ret = WSAStartup(MAKEWORD(2,2), &Data); |
| 639 | if (ret != 0) { |
| 640 | err = WSAGetLastError(); |
| 641 | fprintf(stderr, "WSAStartup: %d\n", err); |
| 642 | return -1; |
| 643 | } |
| 644 | atexit(socket_cleanup); |
| 645 | #endif |
| 646 | return 0; |
| 647 | } |
| 648 | #endif /* !CONFIG_ANDROID */ |