Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | #include "net/socket.h" |
| 25 | |
| 26 | #include "config-host.h" |
| 27 | |
| 28 | #include "net.h" |
| 29 | #include "qemu-char.h" |
| 30 | #include "qemu-common.h" |
| 31 | #include "qemu-option.h" |
| 32 | #include "qemu_socket.h" |
| 33 | #include "sysemu.h" |
| 34 | |
| 35 | typedef struct NetSocketState { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 36 | VLANClientState nc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 37 | int fd; |
| 38 | int state; /* 0 = getting length, 1 = getting data */ |
| 39 | unsigned int index; |
| 40 | unsigned int packet_len; |
| 41 | uint8_t buf[4096]; |
| 42 | struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
| 43 | } NetSocketState; |
| 44 | |
| 45 | typedef struct NetSocketListenState { |
| 46 | VLANState *vlan; |
| 47 | char *model; |
| 48 | char *name; |
| 49 | int fd; |
| 50 | } NetSocketListenState; |
| 51 | |
| 52 | /* XXX: we consider we can send the whole packet without blocking */ |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 53 | static ssize_t net_socket_receive(VLANClientState *nc, const uint8_t *buf, size_t size) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 54 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 55 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 56 | uint32_t len; |
| 57 | len = htonl(size); |
| 58 | |
| 59 | send_all(s->fd, (const uint8_t *)&len, sizeof(len)); |
| 60 | return send_all(s->fd, buf, size); |
| 61 | } |
| 62 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 63 | static ssize_t net_socket_receive_dgram(VLANClientState *nc, const uint8_t *buf, size_t size) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 64 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 65 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 66 | |
| 67 | return sendto(s->fd, (const void *)buf, size, 0, |
| 68 | (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst)); |
| 69 | } |
| 70 | |
| 71 | static void net_socket_send(void *opaque) |
| 72 | { |
| 73 | NetSocketState *s = opaque; |
| 74 | int size, err; |
| 75 | unsigned l; |
| 76 | uint8_t buf1[4096]; |
| 77 | const uint8_t *buf; |
| 78 | |
| 79 | size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
| 80 | if (size < 0) { |
| 81 | err = socket_error(); |
| 82 | if (err != EWOULDBLOCK) |
| 83 | goto eoc; |
| 84 | } else if (size == 0) { |
| 85 | /* end of connection */ |
| 86 | eoc: |
| 87 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 88 | closesocket(s->fd); |
| 89 | return; |
| 90 | } |
| 91 | buf = buf1; |
| 92 | while (size > 0) { |
| 93 | /* reassemble a packet from the network */ |
| 94 | switch(s->state) { |
| 95 | case 0: |
| 96 | l = 4 - s->index; |
| 97 | if (l > size) |
| 98 | l = size; |
| 99 | memcpy(s->buf + s->index, buf, l); |
| 100 | buf += l; |
| 101 | size -= l; |
| 102 | s->index += l; |
| 103 | if (s->index == 4) { |
| 104 | /* got length */ |
| 105 | s->packet_len = ntohl(*(uint32_t *)s->buf); |
| 106 | s->index = 0; |
| 107 | s->state = 1; |
| 108 | } |
| 109 | break; |
| 110 | case 1: |
| 111 | l = s->packet_len - s->index; |
| 112 | if (l > size) |
| 113 | l = size; |
| 114 | if (s->index + l <= sizeof(s->buf)) { |
| 115 | memcpy(s->buf + s->index, buf, l); |
| 116 | } else { |
| 117 | fprintf(stderr, "serious error: oversized packet received," |
| 118 | "connection terminated.\n"); |
| 119 | s->state = 0; |
| 120 | goto eoc; |
| 121 | } |
| 122 | |
| 123 | s->index += l; |
| 124 | buf += l; |
| 125 | size -= l; |
| 126 | if (s->index >= s->packet_len) { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 127 | qemu_send_packet(&s->nc, s->buf, s->packet_len); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 128 | s->index = 0; |
| 129 | s->state = 0; |
| 130 | } |
| 131 | break; |
| 132 | } |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | static void net_socket_send_dgram(void *opaque) |
| 137 | { |
| 138 | NetSocketState *s = opaque; |
| 139 | int size; |
| 140 | |
| 141 | size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
| 142 | if (size < 0) |
| 143 | return; |
| 144 | if (size == 0) { |
| 145 | /* end of connection */ |
| 146 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 147 | return; |
| 148 | } |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 149 | qemu_send_packet(&s->nc, s->buf, size); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 150 | } |
| 151 | |
| 152 | static int net_socket_mcast_create(struct sockaddr_in *mcastaddr) |
| 153 | { |
| 154 | struct ip_mreq imr; |
| 155 | int fd; |
| 156 | int val, ret; |
| 157 | if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) { |
| 158 | fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n", |
| 159 | inet_ntoa(mcastaddr->sin_addr), |
| 160 | (int)ntohl(mcastaddr->sin_addr.s_addr)); |
| 161 | return -1; |
| 162 | |
| 163 | } |
| 164 | fd = socket(PF_INET, SOCK_DGRAM, 0); |
| 165 | if (fd < 0) { |
| 166 | perror("socket(PF_INET, SOCK_DGRAM)"); |
| 167 | return -1; |
| 168 | } |
| 169 | |
| 170 | val = 1; |
| 171 | ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, |
| 172 | (const char *)&val, sizeof(val)); |
| 173 | if (ret < 0) { |
| 174 | perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); |
| 175 | goto fail; |
| 176 | } |
| 177 | |
| 178 | ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr)); |
| 179 | if (ret < 0) { |
| 180 | perror("bind"); |
| 181 | goto fail; |
| 182 | } |
| 183 | |
| 184 | /* Add host to multicast group */ |
| 185 | imr.imr_multiaddr = mcastaddr->sin_addr; |
| 186 | imr.imr_interface.s_addr = htonl(INADDR_ANY); |
| 187 | |
| 188 | ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, |
| 189 | (const char *)&imr, sizeof(struct ip_mreq)); |
| 190 | if (ret < 0) { |
| 191 | perror("setsockopt(IP_ADD_MEMBERSHIP)"); |
| 192 | goto fail; |
| 193 | } |
| 194 | |
| 195 | /* Force mcast msgs to loopback (eg. several QEMUs in same host */ |
| 196 | val = 1; |
| 197 | ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, |
| 198 | (const char *)&val, sizeof(val)); |
| 199 | if (ret < 0) { |
| 200 | perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); |
| 201 | goto fail; |
| 202 | } |
| 203 | |
| 204 | socket_set_nonblock(fd); |
| 205 | return fd; |
| 206 | fail: |
| 207 | if (fd >= 0) |
| 208 | closesocket(fd); |
| 209 | return -1; |
| 210 | } |
| 211 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 212 | static void net_socket_cleanup(VLANClientState *nc) |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 213 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 214 | NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 215 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 216 | close(s->fd); |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 217 | } |
| 218 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 219 | static NetClientInfo net_dgram_socket_info = { |
| 220 | .type = NET_CLIENT_TYPE_SOCKET, |
| 221 | .size = sizeof(NetSocketState), |
| 222 | .receive = net_socket_receive_dgram, |
| 223 | .cleanup = net_socket_cleanup, |
| 224 | }; |
| 225 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 226 | static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, |
| 227 | const char *model, |
| 228 | const char *name, |
| 229 | int fd, int is_connected) |
| 230 | { |
| 231 | struct sockaddr_in saddr; |
| 232 | int newfd; |
| 233 | socklen_t saddr_len; |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 234 | VLANClientState *nc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 235 | NetSocketState *s; |
| 236 | |
| 237 | /* fd passed: multicast: "learn" dgram_dst address from bound address and save it |
| 238 | * Because this may be "shared" socket from a "master" process, datagrams would be recv() |
| 239 | * by ONLY ONE process: we must "clone" this dgram socket --jjo |
| 240 | */ |
| 241 | |
| 242 | if (is_connected) { |
| 243 | if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) { |
| 244 | /* must be bound */ |
| 245 | if (saddr.sin_addr.s_addr==0) { |
| 246 | fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n", |
| 247 | fd); |
| 248 | return NULL; |
| 249 | } |
| 250 | /* clone dgram socket */ |
| 251 | newfd = net_socket_mcast_create(&saddr); |
| 252 | if (newfd < 0) { |
| 253 | /* error already reported by net_socket_mcast_create() */ |
| 254 | close(fd); |
| 255 | return NULL; |
| 256 | } |
| 257 | /* clone newfd to fd, close newfd */ |
| 258 | dup2(newfd, fd); |
| 259 | close(newfd); |
| 260 | |
| 261 | } else { |
| 262 | fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", |
| 263 | fd, strerror(errno)); |
| 264 | return NULL; |
| 265 | } |
| 266 | } |
| 267 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 268 | nc = qemu_new_net_client(&net_dgram_socket_info, vlan, NULL, model, name); |
| 269 | |
| 270 | snprintf(nc->info_str, sizeof(nc->info_str), |
| 271 | "socket: fd=%d (%s mcast=%s:%d)", |
| 272 | fd, is_connected ? "cloned" : "", |
| 273 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 274 | |
| 275 | s = DO_UPCAST(NetSocketState, nc, nc); |
| 276 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 277 | s->fd = fd; |
| 278 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 279 | qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s); |
| 280 | |
| 281 | /* mcast: save bound address as dst */ |
| 282 | if (is_connected) s->dgram_dst=saddr; |
| 283 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 284 | return s; |
| 285 | } |
| 286 | |
| 287 | static void net_socket_connect(void *opaque) |
| 288 | { |
| 289 | NetSocketState *s = opaque; |
| 290 | qemu_set_fd_handler(s->fd, net_socket_send, NULL, s); |
| 291 | } |
| 292 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 293 | static NetClientInfo net_socket_info = { |
| 294 | .type = NET_CLIENT_TYPE_SOCKET, |
| 295 | .size = sizeof(NetSocketState), |
| 296 | .receive = net_socket_receive, |
| 297 | .cleanup = net_socket_cleanup, |
| 298 | }; |
| 299 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 300 | static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, |
| 301 | const char *model, |
| 302 | const char *name, |
| 303 | int fd, int is_connected) |
| 304 | { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 305 | VLANClientState *nc; |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 306 | NetSocketState *s; |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 307 | |
| 308 | nc = qemu_new_net_client(&net_socket_info, vlan, NULL, model, name); |
| 309 | |
| 310 | snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd); |
| 311 | |
| 312 | s = DO_UPCAST(NetSocketState, nc, nc); |
| 313 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 314 | s->fd = fd; |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 315 | |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 316 | if (is_connected) { |
| 317 | net_socket_connect(s); |
| 318 | } else { |
| 319 | qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); |
| 320 | } |
| 321 | return s; |
| 322 | } |
| 323 | |
| 324 | static NetSocketState *net_socket_fd_init(VLANState *vlan, |
| 325 | const char *model, const char *name, |
| 326 | int fd, int is_connected) |
| 327 | { |
| 328 | int so_type = -1, optlen=sizeof(so_type); |
| 329 | |
| 330 | if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type, |
| 331 | (socklen_t *)&optlen)< 0) { |
| 332 | fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n", fd); |
| 333 | return NULL; |
| 334 | } |
| 335 | switch(so_type) { |
| 336 | case SOCK_DGRAM: |
| 337 | return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected); |
| 338 | case SOCK_STREAM: |
| 339 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
| 340 | default: |
| 341 | /* who knows ... this could be a eg. a pty, do warn and continue as stream */ |
| 342 | fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); |
| 343 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
| 344 | } |
| 345 | return NULL; |
| 346 | } |
| 347 | |
| 348 | static void net_socket_accept(void *opaque) |
| 349 | { |
| 350 | NetSocketListenState *s = opaque; |
| 351 | NetSocketState *s1; |
| 352 | struct sockaddr_in saddr; |
| 353 | socklen_t len; |
| 354 | int fd; |
| 355 | |
| 356 | for(;;) { |
| 357 | len = sizeof(saddr); |
| 358 | fd = accept(s->fd, (struct sockaddr *)&saddr, &len); |
| 359 | if (fd < 0 && errno != EINTR) { |
| 360 | return; |
| 361 | } else if (fd >= 0) { |
| 362 | break; |
| 363 | } |
| 364 | } |
| 365 | s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1); |
| 366 | if (!s1) { |
| 367 | closesocket(fd); |
| 368 | } else { |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 369 | snprintf(s1->nc.info_str, sizeof(s1->nc.info_str), |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 370 | "socket: connection from %s:%d", |
| 371 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | static int net_socket_listen_init(VLANState *vlan, |
| 376 | const char *model, |
| 377 | const char *name, |
| 378 | const char *host_str) |
| 379 | { |
| 380 | NetSocketListenState *s; |
| 381 | int fd, val, ret; |
| 382 | struct sockaddr_in saddr; |
| 383 | |
| 384 | if (parse_host_port(&saddr, host_str) < 0) |
| 385 | return -1; |
| 386 | |
| 387 | s = qemu_mallocz(sizeof(NetSocketListenState)); |
| 388 | |
| 389 | fd = socket(PF_INET, SOCK_STREAM, 0); |
| 390 | if (fd < 0) { |
| 391 | perror("socket"); |
| 392 | return -1; |
| 393 | } |
| 394 | socket_set_nonblock(fd); |
| 395 | |
| 396 | /* allow fast reuse */ |
| 397 | val = 1; |
| 398 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val)); |
| 399 | |
| 400 | ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
| 401 | if (ret < 0) { |
| 402 | perror("bind"); |
| 403 | return -1; |
| 404 | } |
| 405 | ret = listen(fd, 0); |
| 406 | if (ret < 0) { |
| 407 | perror("listen"); |
| 408 | return -1; |
| 409 | } |
| 410 | s->vlan = vlan; |
| 411 | s->model = qemu_strdup(model); |
| 412 | s->name = name ? qemu_strdup(name) : NULL; |
| 413 | s->fd = fd; |
| 414 | qemu_set_fd_handler(fd, net_socket_accept, NULL, s); |
| 415 | return 0; |
| 416 | } |
| 417 | |
| 418 | static int net_socket_connect_init(VLANState *vlan, |
| 419 | const char *model, |
| 420 | const char *name, |
| 421 | const char *host_str) |
| 422 | { |
| 423 | NetSocketState *s; |
| 424 | int fd, connected, ret, err; |
| 425 | struct sockaddr_in saddr; |
| 426 | |
| 427 | if (parse_host_port(&saddr, host_str) < 0) |
| 428 | return -1; |
| 429 | |
| 430 | fd = socket(PF_INET, SOCK_STREAM, 0); |
| 431 | if (fd < 0) { |
| 432 | perror("socket"); |
| 433 | return -1; |
| 434 | } |
| 435 | socket_set_nonblock(fd); |
| 436 | |
| 437 | connected = 0; |
| 438 | for(;;) { |
| 439 | ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr)); |
| 440 | if (ret < 0) { |
| 441 | err = socket_error(); |
| 442 | if (err == EINTR || err == EWOULDBLOCK) { |
| 443 | } else if (err == EINPROGRESS) { |
| 444 | break; |
| 445 | #ifdef _WIN32 |
| 446 | } else if (err == WSAEALREADY) { |
| 447 | break; |
| 448 | #endif |
| 449 | } else { |
| 450 | perror("connect"); |
| 451 | closesocket(fd); |
| 452 | return -1; |
| 453 | } |
| 454 | } else { |
| 455 | connected = 1; |
| 456 | break; |
| 457 | } |
| 458 | } |
| 459 | s = net_socket_fd_init(vlan, model, name, fd, connected); |
| 460 | if (!s) |
| 461 | return -1; |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 462 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 463 | "socket: connect to %s:%d", |
| 464 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | static int net_socket_mcast_init(VLANState *vlan, |
| 469 | const char *model, |
| 470 | const char *name, |
| 471 | const char *host_str) |
| 472 | { |
| 473 | NetSocketState *s; |
| 474 | int fd; |
| 475 | struct sockaddr_in saddr; |
| 476 | |
| 477 | if (parse_host_port(&saddr, host_str) < 0) |
| 478 | return -1; |
| 479 | |
| 480 | |
| 481 | fd = net_socket_mcast_create(&saddr); |
| 482 | if (fd < 0) |
| 483 | return -1; |
| 484 | |
| 485 | s = net_socket_fd_init(vlan, model, name, fd, 0); |
| 486 | if (!s) |
| 487 | return -1; |
| 488 | |
| 489 | s->dgram_dst = saddr; |
| 490 | |
Mark McLoughlin | 564f63e | 2009-11-25 18:49:08 +0000 | [diff] [blame^] | 491 | snprintf(s->nc.info_str, sizeof(s->nc.info_str), |
Mark McLoughlin | 42281ac | 2009-11-25 18:48:56 +0000 | [diff] [blame] | 492 | "socket: mcast=%s:%d", |
| 493 | inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); |
| 494 | return 0; |
| 495 | |
| 496 | } |
| 497 | |
| 498 | int net_init_socket(QemuOpts *opts, |
| 499 | Monitor *mon, |
| 500 | const char *name, |
| 501 | VLANState *vlan) |
| 502 | { |
| 503 | if (qemu_opt_get(opts, "fd")) { |
| 504 | int fd; |
| 505 | |
| 506 | if (qemu_opt_get(opts, "listen") || |
| 507 | qemu_opt_get(opts, "connect") || |
| 508 | qemu_opt_get(opts, "mcast")) { |
| 509 | qemu_error("listen=, connect= and mcast= is invalid with fd=\n"); |
| 510 | return -1; |
| 511 | } |
| 512 | |
| 513 | fd = net_handle_fd_param(mon, qemu_opt_get(opts, "fd")); |
| 514 | if (fd == -1) { |
| 515 | return -1; |
| 516 | } |
| 517 | |
| 518 | if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) { |
| 519 | close(fd); |
| 520 | return -1; |
| 521 | } |
| 522 | } else if (qemu_opt_get(opts, "listen")) { |
| 523 | const char *listen; |
| 524 | |
| 525 | if (qemu_opt_get(opts, "fd") || |
| 526 | qemu_opt_get(opts, "connect") || |
| 527 | qemu_opt_get(opts, "mcast")) { |
| 528 | qemu_error("fd=, connect= and mcast= is invalid with listen=\n"); |
| 529 | return -1; |
| 530 | } |
| 531 | |
| 532 | listen = qemu_opt_get(opts, "listen"); |
| 533 | |
| 534 | if (net_socket_listen_init(vlan, "socket", name, listen) == -1) { |
| 535 | return -1; |
| 536 | } |
| 537 | } else if (qemu_opt_get(opts, "connect")) { |
| 538 | const char *connect; |
| 539 | |
| 540 | if (qemu_opt_get(opts, "fd") || |
| 541 | qemu_opt_get(opts, "listen") || |
| 542 | qemu_opt_get(opts, "mcast")) { |
| 543 | qemu_error("fd=, listen= and mcast= is invalid with connect=\n"); |
| 544 | return -1; |
| 545 | } |
| 546 | |
| 547 | connect = qemu_opt_get(opts, "connect"); |
| 548 | |
| 549 | if (net_socket_connect_init(vlan, "socket", name, connect) == -1) { |
| 550 | return -1; |
| 551 | } |
| 552 | } else if (qemu_opt_get(opts, "mcast")) { |
| 553 | const char *mcast; |
| 554 | |
| 555 | if (qemu_opt_get(opts, "fd") || |
| 556 | qemu_opt_get(opts, "connect") || |
| 557 | qemu_opt_get(opts, "listen")) { |
| 558 | qemu_error("fd=, connect= and listen= is invalid with mcast=\n"); |
| 559 | return -1; |
| 560 | } |
| 561 | |
| 562 | mcast = qemu_opt_get(opts, "mcast"); |
| 563 | |
| 564 | if (net_socket_mcast_init(vlan, "socket", name, mcast) == -1) { |
| 565 | return -1; |
| 566 | } |
| 567 | } else { |
| 568 | qemu_error("-socket requires fd=, listen=, connect= or mcast=\n"); |
| 569 | return -1; |
| 570 | } |
| 571 | |
| 572 | if (vlan) { |
| 573 | vlan->nb_host_devs++; |
| 574 | } |
| 575 | |
| 576 | return 0; |
| 577 | } |