David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [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 <unistd.h> |
| 25 | #include <fcntl.h> |
| 26 | #include <signal.h> |
| 27 | #include <time.h> |
| 28 | #include <errno.h> |
| 29 | #include <sys/time.h> |
| 30 | #include <zlib.h> |
| 31 | |
| 32 | #include "tcpdump.h" |
| 33 | |
| 34 | /* Needed early for HOST_BSD etc. */ |
| 35 | #include "config-host.h" |
| 36 | |
| 37 | #ifndef _WIN32 |
| 38 | #include <sys/times.h> |
| 39 | #include <sys/wait.h> |
| 40 | #include <termios.h> |
| 41 | #include <sys/mman.h> |
| 42 | #include <sys/ioctl.h> |
| 43 | #include <sys/resource.h> |
| 44 | #include <sys/socket.h> |
| 45 | #include <netinet/in.h> |
| 46 | #include <net/if.h> |
| 47 | #ifdef __NetBSD__ |
| 48 | #include <net/if_tap.h> |
| 49 | #endif |
| 50 | #ifdef __linux__ |
| 51 | #include <linux/if_tun.h> |
| 52 | #endif |
| 53 | #include <arpa/inet.h> |
| 54 | #include <dirent.h> |
| 55 | #include <netdb.h> |
| 56 | #include <sys/select.h> |
David 'Digit' Turner | 2c538c8 | 2010-05-10 16:48:20 -0700 | [diff] [blame] | 57 | #ifdef CONFIG_BSD |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 58 | #include <sys/stat.h> |
| 59 | #if defined(__FreeBSD__) || defined(__DragonFly__) |
| 60 | #include <libutil.h> |
| 61 | #else |
| 62 | #include <util.h> |
| 63 | #endif |
| 64 | #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__) |
| 65 | #include <freebsd/stdlib.h> |
| 66 | #else |
| 67 | #ifdef __linux__ |
| 68 | #include <pty.h> |
| 69 | #include <malloc.h> |
| 70 | #include <linux/rtc.h> |
| 71 | |
| 72 | /* For the benefit of older linux systems which don't supply it, |
| 73 | we use a local copy of hpet.h. */ |
| 74 | /* #include <linux/hpet.h> */ |
| 75 | #include "hpet.h" |
| 76 | |
| 77 | #include <linux/ppdev.h> |
| 78 | #include <linux/parport.h> |
| 79 | #endif |
| 80 | #ifdef __sun__ |
| 81 | #include <sys/stat.h> |
| 82 | #include <sys/ethernet.h> |
| 83 | #include <sys/sockio.h> |
| 84 | #include <netinet/arp.h> |
| 85 | #include <netinet/in.h> |
| 86 | #include <netinet/in_systm.h> |
| 87 | #include <netinet/ip.h> |
| 88 | #include <netinet/ip_icmp.h> // must come after ip.h |
| 89 | #include <netinet/udp.h> |
| 90 | #include <netinet/tcp.h> |
| 91 | #include <net/if.h> |
| 92 | #include <syslog.h> |
| 93 | #include <stropts.h> |
| 94 | #endif |
| 95 | #endif |
| 96 | #endif |
| 97 | |
| 98 | #if defined(__OpenBSD__) |
| 99 | #include <util.h> |
| 100 | #endif |
| 101 | |
| 102 | #if defined(CONFIG_VDE) |
| 103 | #include <libvdeplug.h> |
| 104 | #endif |
| 105 | |
| 106 | #ifdef _WIN32 |
| 107 | #include <windows.h> |
| 108 | #include <malloc.h> |
| 109 | #include <sys/timeb.h> |
| 110 | #include <mmsystem.h> |
| 111 | #define getopt_long_only getopt_long |
| 112 | #define memalign(align, size) malloc(size) |
| 113 | #endif |
| 114 | |
| 115 | #include "qemu-common.h" |
| 116 | #include "net.h" |
| 117 | #include "monitor.h" |
| 118 | #include "sysemu.h" |
| 119 | #include "qemu-timer.h" |
| 120 | #include "qemu-char.h" |
| 121 | #include "audio/audio.h" |
| 122 | #include "qemu_socket.h" |
| 123 | #include "qemu-log.h" |
| 124 | |
| 125 | #if defined(CONFIG_SLIRP) |
| 126 | #include "libslirp.h" |
| 127 | #endif |
| 128 | |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 129 | #if defined(CONFIG_ANDROID) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 130 | #include "shaper.h" |
| 131 | #endif |
| 132 | |
Vladimir Chtchetkine | eb83825 | 2010-07-15 12:27:56 -0700 | [diff] [blame] | 133 | #include "android/android.h" |
| 134 | #include "telephony/modem_driver.h" |
| 135 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 136 | static VLANState *first_vlan; |
| 137 | |
Vladimir Chtchetkine | eb83825 | 2010-07-15 12:27:56 -0700 | [diff] [blame] | 138 | /* see http://en.wikipedia.org/wiki/List_of_device_bandwidths or a complete list */ |
| 139 | const NetworkSpeed android_netspeeds[] = { |
| 140 | { "gsm", "GSM/CSD", 14400, 14400 }, |
| 141 | { "hscsd", "HSCSD", 14400, 43200 }, |
| 142 | { "gprs", "GPRS", 40000, 80000 }, |
| 143 | { "edge", "EDGE/EGPRS", 118400, 236800 }, |
| 144 | { "umts", "UMTS/3G", 128000, 1920000 }, |
| 145 | { "hsdpa", "HSDPA", 348000, 14400000 }, |
| 146 | { "full", "no limit", 0, 0 }, |
| 147 | { NULL, NULL, 0, 0 } |
| 148 | }; |
Vladimir Chtchetkine | 318f17a | 2010-08-27 09:09:45 -0700 | [diff] [blame] | 149 | const size_t android_netspeeds_count = |
| 150 | sizeof(android_netspeeds) / sizeof(android_netspeeds[0]); |
Vladimir Chtchetkine | eb83825 | 2010-07-15 12:27:56 -0700 | [diff] [blame] | 151 | |
| 152 | const NetworkLatency android_netdelays[] = { |
| 153 | /* FIXME: these numbers are totally imaginary */ |
| 154 | { "gprs", "GPRS", 150, 550 }, |
| 155 | { "edge", "EDGE/EGPRS", 80, 400 }, |
| 156 | { "umts", "UMTS/3G", 35, 200 }, |
| 157 | { "none", "no latency", 0, 0 }, |
| 158 | { NULL, NULL, 0, 0 } |
| 159 | }; |
Vladimir Chtchetkine | 318f17a | 2010-08-27 09:09:45 -0700 | [diff] [blame] | 160 | const size_t android_netdelays_count = |
| 161 | sizeof(android_netdelays) / sizeof(android_netdelays[0]); |
Vladimir Chtchetkine | eb83825 | 2010-07-15 12:27:56 -0700 | [diff] [blame] | 162 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 163 | /***********************************************************/ |
| 164 | /* network device redirectors */ |
| 165 | |
| 166 | #if defined(DEBUG_NET) || defined(DEBUG_SLIRP) |
| 167 | static void hex_dump(FILE *f, const uint8_t *buf, int size) |
| 168 | { |
| 169 | int len, i, j, c; |
| 170 | |
| 171 | for(i=0;i<size;i+=16) { |
| 172 | len = size - i; |
| 173 | if (len > 16) |
| 174 | len = 16; |
| 175 | fprintf(f, "%08x ", i); |
| 176 | for(j=0;j<16;j++) { |
| 177 | if (j < len) |
| 178 | fprintf(f, " %02x", buf[i+j]); |
| 179 | else |
| 180 | fprintf(f, " "); |
| 181 | } |
| 182 | fprintf(f, " "); |
| 183 | for(j=0;j<len;j++) { |
| 184 | c = buf[i+j]; |
| 185 | if (c < ' ' || c > '~') |
| 186 | c = '.'; |
| 187 | fprintf(f, "%c", c); |
| 188 | } |
| 189 | fprintf(f, "\n"); |
| 190 | } |
| 191 | } |
| 192 | #endif |
| 193 | |
| 194 | static int parse_macaddr(uint8_t *macaddr, const char *p) |
| 195 | { |
| 196 | int i; |
| 197 | char *last_char; |
| 198 | long int offset; |
| 199 | |
| 200 | errno = 0; |
Vladimir Chtchetkine | 318f17a | 2010-08-27 09:09:45 -0700 | [diff] [blame] | 201 | offset = strtol(p, &last_char, 0); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 202 | if (0 == errno && '\0' == *last_char && |
| 203 | offset >= 0 && offset <= 0xFFFFFF) { |
| 204 | macaddr[3] = (offset & 0xFF0000) >> 16; |
| 205 | macaddr[4] = (offset & 0xFF00) >> 8; |
| 206 | macaddr[5] = offset & 0xFF; |
| 207 | return 0; |
| 208 | } else { |
| 209 | for(i = 0; i < 6; i++) { |
| 210 | macaddr[i] = strtol(p, (char **)&p, 16); |
| 211 | if (i == 5) { |
| 212 | if (*p != '\0') |
| 213 | return -1; |
| 214 | } else { |
| 215 | if (*p != ':' && *p != '-') |
| 216 | return -1; |
| 217 | p++; |
| 218 | } |
| 219 | } |
Vladimir Chtchetkine | 318f17a | 2010-08-27 09:09:45 -0700 | [diff] [blame] | 220 | return 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | return -1; |
| 224 | } |
| 225 | |
| 226 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
| 227 | { |
| 228 | const char *p, *p1; |
| 229 | int len; |
| 230 | p = *pp; |
| 231 | p1 = strchr(p, sep); |
| 232 | if (!p1) |
| 233 | return -1; |
| 234 | len = p1 - p; |
| 235 | p1++; |
| 236 | if (buf_size > 0) { |
| 237 | if (len > buf_size - 1) |
| 238 | len = buf_size - 1; |
| 239 | memcpy(buf, p, len); |
| 240 | buf[len] = '\0'; |
| 241 | } |
| 242 | *pp = p1; |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | int parse_host_src_port(SockAddress *haddr, |
| 247 | SockAddress *saddr, |
| 248 | const char *input_str) |
| 249 | { |
| 250 | char *str = strdup(input_str); |
| 251 | char *host_str = str; |
| 252 | char *src_str; |
| 253 | const char *src_str2; |
| 254 | char *ptr; |
| 255 | |
| 256 | /* |
| 257 | * Chop off any extra arguments at the end of the string which |
| 258 | * would start with a comma, then fill in the src port information |
| 259 | * if it was provided else use the "any address" and "any port". |
| 260 | */ |
| 261 | if ((ptr = strchr(str,','))) |
| 262 | *ptr = '\0'; |
| 263 | |
| 264 | if ((src_str = strchr(input_str,'@'))) { |
| 265 | *src_str = '\0'; |
| 266 | src_str++; |
| 267 | } |
| 268 | |
| 269 | if (parse_host_port(haddr, host_str) < 0) |
| 270 | goto fail; |
| 271 | |
| 272 | src_str2 = src_str; |
| 273 | if (!src_str || *src_str == '\0') |
| 274 | src_str2 = ":0"; |
| 275 | |
| 276 | if (parse_host_port(saddr, src_str2) < 0) |
| 277 | goto fail; |
| 278 | |
| 279 | free(str); |
| 280 | return(0); |
| 281 | |
| 282 | fail: |
| 283 | free(str); |
| 284 | return -1; |
| 285 | } |
| 286 | |
| 287 | int parse_host_port(SockAddress *saddr, const char *str) |
| 288 | { |
| 289 | char buf[512]; |
| 290 | const char *p, *r; |
| 291 | uint32_t ip; |
| 292 | int port; |
| 293 | |
| 294 | p = str; |
| 295 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
| 296 | return -1; |
| 297 | |
| 298 | if (buf[0] == '\0') { |
| 299 | ip = 0; |
| 300 | } else { |
| 301 | if (qemu_isdigit(buf[0])) { |
| 302 | if (inet_strtoip(buf, &ip) < 0) |
| 303 | return -1; |
| 304 | } else { |
| 305 | if (sock_address_init_resolve(saddr, buf, 0, 0) < 0) |
| 306 | return - 1; |
| 307 | ip = sock_address_get_ip(saddr); |
| 308 | } |
| 309 | } |
| 310 | port = strtol(p, (char **)&r, 0); |
| 311 | if (r == p) |
| 312 | return -1; |
| 313 | sock_address_init_inet(saddr, ip, port); |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | #if !defined(_WIN32) && 0 |
| 318 | static int parse_unix_path(struct sockaddr_un *uaddr, const char *str) |
| 319 | { |
| 320 | const char *p; |
| 321 | int len; |
| 322 | |
| 323 | len = MIN(108, strlen(str)); |
| 324 | p = strchr(str, ','); |
| 325 | if (p) |
| 326 | len = MIN(len, p - str); |
| 327 | |
| 328 | memset(uaddr, 0, sizeof(*uaddr)); |
| 329 | |
| 330 | uaddr->sun_family = AF_UNIX; |
| 331 | memcpy(uaddr->sun_path, str, len); |
| 332 | |
| 333 | return 0; |
| 334 | } |
| 335 | #endif |
| 336 | |
| 337 | void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
| 338 | { |
| 339 | snprintf(vc->info_str, sizeof(vc->info_str), |
| 340 | "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x", |
| 341 | vc->model, |
| 342 | macaddr[0], macaddr[1], macaddr[2], |
| 343 | macaddr[3], macaddr[4], macaddr[5]); |
| 344 | } |
| 345 | |
| 346 | static char *assign_name(VLANClientState *vc1, const char *model) |
| 347 | { |
| 348 | VLANState *vlan; |
| 349 | char buf[256]; |
| 350 | int id = 0; |
| 351 | |
| 352 | for (vlan = first_vlan; vlan; vlan = vlan->next) { |
| 353 | VLANClientState *vc; |
| 354 | |
| 355 | for (vc = vlan->first_client; vc; vc = vc->next) |
| 356 | if (vc != vc1 && strcmp(vc->model, model) == 0) |
| 357 | id++; |
| 358 | } |
| 359 | |
| 360 | snprintf(buf, sizeof(buf), "%s.%d", model, id); |
| 361 | |
| 362 | return strdup(buf); |
| 363 | } |
| 364 | |
| 365 | VLANClientState *qemu_new_vlan_client(VLANState *vlan, |
| 366 | const char *model, |
| 367 | const char *name, |
| 368 | NetCanReceive *can_receive, |
| 369 | NetReceive *receive, |
| 370 | NetReceiveIOV *receive_iov, |
| 371 | NetCleanup *cleanup, |
| 372 | void *opaque) |
| 373 | { |
| 374 | VLANClientState *vc, **pvc; |
| 375 | vc = qemu_mallocz(sizeof(VLANClientState)); |
| 376 | vc->model = strdup(model); |
| 377 | if (name) |
| 378 | vc->name = strdup(name); |
| 379 | else |
| 380 | vc->name = assign_name(vc, model); |
| 381 | vc->can_receive = can_receive; |
| 382 | vc->receive = receive; |
| 383 | vc->receive_iov = receive_iov; |
| 384 | vc->cleanup = cleanup; |
| 385 | vc->opaque = opaque; |
| 386 | vc->vlan = vlan; |
| 387 | |
| 388 | vc->next = NULL; |
| 389 | pvc = &vlan->first_client; |
| 390 | while (*pvc != NULL) |
| 391 | pvc = &(*pvc)->next; |
| 392 | *pvc = vc; |
| 393 | return vc; |
| 394 | } |
| 395 | |
| 396 | void qemu_del_vlan_client(VLANClientState *vc) |
| 397 | { |
| 398 | VLANClientState **pvc = &vc->vlan->first_client; |
| 399 | |
| 400 | while (*pvc != NULL) |
| 401 | if (*pvc == vc) { |
| 402 | *pvc = vc->next; |
| 403 | if (vc->cleanup) { |
| 404 | vc->cleanup(vc); |
| 405 | } |
| 406 | free(vc->name); |
| 407 | free(vc->model); |
| 408 | qemu_free(vc); |
| 409 | break; |
| 410 | } else |
| 411 | pvc = &(*pvc)->next; |
| 412 | } |
| 413 | |
| 414 | VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque) |
| 415 | { |
| 416 | VLANClientState **pvc = &vlan->first_client; |
| 417 | |
| 418 | while (*pvc != NULL) |
| 419 | if ((*pvc)->opaque == opaque) |
| 420 | return *pvc; |
| 421 | else |
| 422 | pvc = &(*pvc)->next; |
| 423 | |
| 424 | return NULL; |
| 425 | } |
| 426 | |
| 427 | int qemu_can_send_packet(VLANClientState *sender) |
| 428 | { |
| 429 | VLANState *vlan = sender->vlan; |
| 430 | VLANClientState *vc; |
| 431 | |
| 432 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
| 433 | if (vc == sender) { |
| 434 | continue; |
| 435 | } |
| 436 | |
| 437 | /* no can_receive() handler, they can always receive */ |
| 438 | if (!vc->can_receive || vc->can_receive(vc)) { |
| 439 | return 1; |
| 440 | } |
| 441 | } |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | static int |
| 446 | qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size) |
| 447 | { |
| 448 | VLANClientState *vc; |
| 449 | int ret = -1; |
| 450 | |
| 451 | sender->vlan->delivering = 1; |
| 452 | |
| 453 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
| 454 | ssize_t len; |
| 455 | |
| 456 | if (vc == sender) { |
| 457 | continue; |
| 458 | } |
| 459 | |
| 460 | if (vc->link_down) { |
| 461 | ret = size; |
| 462 | continue; |
| 463 | } |
| 464 | |
| 465 | len = vc->receive(vc, buf, size); |
| 466 | |
| 467 | ret = (ret >= 0) ? ret : len; |
| 468 | } |
| 469 | |
| 470 | sender->vlan->delivering = 0; |
| 471 | |
| 472 | return ret; |
| 473 | } |
| 474 | |
| 475 | void qemu_flush_queued_packets(VLANClientState *vc) |
| 476 | { |
| 477 | VLANPacket *packet; |
| 478 | |
| 479 | while ((packet = vc->vlan->send_queue) != NULL) { |
| 480 | int ret; |
| 481 | |
| 482 | vc->vlan->send_queue = packet->next; |
| 483 | |
| 484 | ret = qemu_deliver_packet(packet->sender, packet->data, packet->size); |
| 485 | if (ret == 0 && packet->sent_cb != NULL) { |
| 486 | packet->next = vc->vlan->send_queue; |
| 487 | vc->vlan->send_queue = packet; |
| 488 | break; |
| 489 | } |
| 490 | |
| 491 | if (packet->sent_cb) |
| 492 | packet->sent_cb(packet->sender); |
| 493 | |
| 494 | qemu_free(packet); |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | static void qemu_enqueue_packet(VLANClientState *sender, |
| 499 | const uint8_t *buf, int size, |
| 500 | NetPacketSent *sent_cb) |
| 501 | { |
| 502 | VLANPacket *packet; |
| 503 | |
| 504 | packet = qemu_malloc(sizeof(VLANPacket) + size); |
| 505 | packet->next = sender->vlan->send_queue; |
| 506 | packet->sender = sender; |
| 507 | packet->size = size; |
| 508 | packet->sent_cb = sent_cb; |
| 509 | memcpy(packet->data, buf, size); |
| 510 | sender->vlan->send_queue = packet; |
| 511 | } |
| 512 | |
| 513 | ssize_t qemu_send_packet_async(VLANClientState *sender, |
| 514 | const uint8_t *buf, int size, |
| 515 | NetPacketSent *sent_cb) |
| 516 | { |
| 517 | int ret; |
| 518 | |
| 519 | if (sender->link_down) { |
| 520 | return size; |
| 521 | } |
| 522 | |
| 523 | #ifdef DEBUG_NET |
| 524 | printf("vlan %d send:\n", sender->vlan->id); |
| 525 | hex_dump(stdout, buf, size); |
| 526 | #endif |
| 527 | |
| 528 | if (sender->vlan->delivering) { |
| 529 | qemu_enqueue_packet(sender, buf, size, NULL); |
| 530 | return size; |
| 531 | } |
| 532 | |
| 533 | ret = qemu_deliver_packet(sender, buf, size); |
| 534 | if (ret == 0 && sent_cb != NULL) { |
| 535 | qemu_enqueue_packet(sender, buf, size, sent_cb); |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | qemu_flush_queued_packets(sender); |
| 540 | |
| 541 | return ret; |
| 542 | } |
| 543 | |
| 544 | void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
| 545 | { |
| 546 | qemu_send_packet_async(vc, buf, size, NULL); |
| 547 | } |
| 548 | |
| 549 | static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
| 550 | int iovcnt) |
| 551 | { |
| 552 | uint8_t buffer[4096]; |
| 553 | size_t offset = 0; |
| 554 | int i; |
| 555 | |
| 556 | for (i = 0; i < iovcnt; i++) { |
| 557 | size_t len; |
| 558 | |
| 559 | len = MIN(sizeof(buffer) - offset, iov[i].iov_len); |
| 560 | memcpy(buffer + offset, iov[i].iov_base, len); |
| 561 | offset += len; |
| 562 | } |
| 563 | |
| 564 | return vc->receive(vc, buffer, offset); |
| 565 | } |
| 566 | |
| 567 | static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
| 568 | { |
| 569 | size_t offset = 0; |
| 570 | int i; |
| 571 | |
| 572 | for (i = 0; i < iovcnt; i++) |
| 573 | offset += iov[i].iov_len; |
| 574 | return offset; |
| 575 | } |
| 576 | |
| 577 | static int qemu_deliver_packet_iov(VLANClientState *sender, |
| 578 | const struct iovec *iov, int iovcnt) |
| 579 | { |
| 580 | VLANClientState *vc; |
| 581 | int ret = -1; |
| 582 | |
| 583 | sender->vlan->delivering = 1; |
| 584 | |
| 585 | for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) { |
| 586 | ssize_t len; |
| 587 | |
| 588 | if (vc == sender) { |
| 589 | continue; |
| 590 | } |
| 591 | |
| 592 | if (vc->link_down) { |
| 593 | ret = calc_iov_length(iov, iovcnt); |
| 594 | continue; |
| 595 | } |
| 596 | |
| 597 | if (vc->receive_iov) { |
| 598 | len = vc->receive_iov(vc, iov, iovcnt); |
| 599 | } else { |
| 600 | len = vc_sendv_compat(vc, iov, iovcnt); |
| 601 | } |
| 602 | |
| 603 | ret = (ret >= 0) ? ret : len; |
| 604 | } |
| 605 | |
| 606 | sender->vlan->delivering = 0; |
| 607 | |
| 608 | return ret; |
| 609 | } |
| 610 | |
| 611 | static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender, |
| 612 | const struct iovec *iov, int iovcnt, |
| 613 | NetPacketSent *sent_cb) |
| 614 | { |
| 615 | VLANPacket *packet; |
| 616 | size_t max_len = 0; |
| 617 | int i; |
| 618 | |
| 619 | max_len = calc_iov_length(iov, iovcnt); |
| 620 | |
| 621 | packet = qemu_malloc(sizeof(VLANPacket) + max_len); |
| 622 | packet->next = sender->vlan->send_queue; |
| 623 | packet->sender = sender; |
| 624 | packet->sent_cb = sent_cb; |
| 625 | packet->size = 0; |
| 626 | |
| 627 | for (i = 0; i < iovcnt; i++) { |
| 628 | size_t len = iov[i].iov_len; |
| 629 | |
| 630 | memcpy(packet->data + packet->size, iov[i].iov_base, len); |
| 631 | packet->size += len; |
| 632 | } |
| 633 | |
| 634 | sender->vlan->send_queue = packet; |
| 635 | |
| 636 | return packet->size; |
| 637 | } |
| 638 | |
| 639 | ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
| 640 | const struct iovec *iov, int iovcnt, |
| 641 | NetPacketSent *sent_cb) |
| 642 | { |
| 643 | int ret; |
| 644 | |
| 645 | if (sender->link_down) { |
| 646 | return calc_iov_length(iov, iovcnt); |
| 647 | } |
| 648 | |
| 649 | if (sender->vlan->delivering) { |
| 650 | return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL); |
| 651 | } |
| 652 | |
| 653 | ret = qemu_deliver_packet_iov(sender, iov, iovcnt); |
| 654 | if (ret == 0 && sent_cb != NULL) { |
| 655 | qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb); |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | qemu_flush_queued_packets(sender); |
| 660 | |
| 661 | return ret; |
| 662 | } |
| 663 | |
| 664 | ssize_t |
| 665 | qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
| 666 | { |
| 667 | return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
| 668 | } |
| 669 | |
| 670 | static void config_error(Monitor *mon, const char *fmt, ...) |
| 671 | { |
| 672 | va_list ap; |
| 673 | |
| 674 | va_start(ap, fmt); |
| 675 | if (mon) { |
| 676 | monitor_vprintf(mon, fmt, ap); |
| 677 | } else { |
| 678 | fprintf(stderr, "qemu: "); |
| 679 | vfprintf(stderr, fmt, ap); |
| 680 | exit(1); |
| 681 | } |
| 682 | va_end(ap); |
| 683 | } |
| 684 | |
| 685 | #if defined(CONFIG_SLIRP) |
| 686 | |
| 687 | /* slirp network adapter */ |
| 688 | |
| 689 | struct slirp_config_str { |
| 690 | struct slirp_config_str *next; |
| 691 | const char *str; |
| 692 | }; |
| 693 | |
| 694 | static int slirp_inited; |
| 695 | static struct slirp_config_str *slirp_redirs; |
| 696 | #ifndef _WIN32 |
| 697 | static const char *slirp_smb_export; |
| 698 | #endif |
| 699 | static VLANClientState *slirp_vc; |
| 700 | |
| 701 | #ifndef _WIN32 |
| 702 | static void slirp_smb(const char *exported_dir); |
| 703 | #endif |
| 704 | static void slirp_redirection(Monitor *mon, const char *redir_str); |
| 705 | |
| 706 | double qemu_net_upload_speed = 0.; |
| 707 | double qemu_net_download_speed = 0.; |
| 708 | int qemu_net_min_latency = 0; |
| 709 | int qemu_net_max_latency = 0; |
| 710 | int qemu_net_disable = 0; |
| 711 | |
| 712 | int |
| 713 | ip_packet_is_internal( const uint8_t* data, size_t size ) |
| 714 | { |
| 715 | const uint8_t* end = data + size; |
| 716 | |
| 717 | /* must have room for Mac + IP header */ |
| 718 | if (data + 40 > end) |
| 719 | return 0; |
| 720 | |
| 721 | if (data[12] != 0x08 || data[13] != 0x00 ) |
| 722 | return 0; |
| 723 | |
| 724 | /* must have valid IP header */ |
| 725 | data += 14; |
| 726 | if ((data[0] >> 4) != 4 || (data[0] & 15) < 5) |
| 727 | return 0; |
| 728 | |
| 729 | /* internal if both source and dest addresses are in 10.x.x.x */ |
| 730 | return ( data[12] == 10 && data[16] == 10); |
| 731 | } |
| 732 | |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 733 | #ifdef CONFIG_ANDROID |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 734 | |
| 735 | NetShaper slirp_shaper_in; |
| 736 | NetShaper slirp_shaper_out; |
| 737 | NetDelay slirp_delay_in; |
| 738 | |
| 739 | static void |
| 740 | slirp_delay_in_cb( void* data, |
| 741 | size_t size, |
| 742 | void* opaque ) |
| 743 | { |
| 744 | slirp_input( (const uint8_t*)data, (int)size ); |
| 745 | opaque = opaque; |
| 746 | } |
| 747 | |
| 748 | static void |
| 749 | slirp_shaper_in_cb( void* data, |
| 750 | size_t size, |
| 751 | void* opaque ) |
| 752 | { |
| 753 | netdelay_send_aux( slirp_delay_in, data, size, opaque ); |
| 754 | } |
| 755 | |
| 756 | static void |
| 757 | slirp_shaper_out_cb( void* data, |
| 758 | size_t size, |
| 759 | void* opaque ) |
| 760 | { |
| 761 | qemu_send_packet( slirp_vc, (const uint8_t*)data, (int)size ); |
| 762 | } |
| 763 | |
| 764 | void |
| 765 | slirp_init_shapers( void ) |
| 766 | { |
| 767 | slirp_delay_in = netdelay_create( slirp_delay_in_cb ); |
| 768 | slirp_shaper_in = netshaper_create( 1, slirp_shaper_in_cb ); |
| 769 | slirp_shaper_out = netshaper_create( 1, slirp_shaper_out_cb ); |
| 770 | |
| 771 | netdelay_set_latency( slirp_delay_in, qemu_net_min_latency, qemu_net_max_latency ); |
| 772 | netshaper_set_rate( slirp_shaper_out, qemu_net_download_speed ); |
| 773 | netshaper_set_rate( slirp_shaper_in, qemu_net_upload_speed ); |
| 774 | } |
| 775 | |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 776 | #endif /* CONFIG_ANDROID */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 777 | |
| 778 | |
| 779 | int slirp_can_output(void) |
| 780 | { |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 781 | #ifdef CONFIG_ANDROID |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 782 | return !slirp_vc || |
| 783 | ( netshaper_can_send(slirp_shaper_out) && |
| 784 | qemu_can_send_packet(slirp_vc) ); |
| 785 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 786 | return !slirp_vc || qemu_can_send_packet(slirp_vc); |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 787 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 788 | } |
| 789 | |
| 790 | void slirp_output(const uint8_t *pkt, int pkt_len) |
| 791 | { |
| 792 | #ifdef DEBUG_SLIRP |
| 793 | printf("slirp output:\n"); |
| 794 | hex_dump(stdout, pkt, pkt_len); |
| 795 | #endif |
| 796 | if (qemu_tcpdump_active) |
| 797 | qemu_tcpdump_packet(pkt, pkt_len); |
| 798 | |
| 799 | if (!slirp_vc) |
| 800 | return; |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 801 | |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 802 | #ifdef CONFIG_ANDROID |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 803 | netshaper_send(slirp_shaper_out, (void*)pkt, pkt_len); |
| 804 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 805 | qemu_send_packet(slirp_vc, pkt, pkt_len); |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 806 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 807 | } |
| 808 | |
| 809 | int slirp_is_inited(void) |
| 810 | { |
| 811 | return slirp_inited; |
| 812 | } |
| 813 | |
| 814 | static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 815 | { |
| 816 | #ifdef DEBUG_SLIRP |
| 817 | printf("slirp input:\n"); |
| 818 | hex_dump(stdout, buf, size); |
| 819 | #endif |
| 820 | if (qemu_tcpdump_active) |
| 821 | qemu_tcpdump_packet(buf, size); |
| 822 | |
David 'Digit' Turner | 462564f | 2011-02-23 13:32:37 +0100 | [diff] [blame] | 823 | #ifdef CONFIG_ANDROID |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 824 | netshaper_send(slirp_shaper_in, (char*)buf, size); |
| 825 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 826 | slirp_input(buf, size); |
David 'Digit' Turner | 3bca773 | 2010-05-25 17:28:38 -0700 | [diff] [blame] | 827 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 828 | return size; |
| 829 | } |
| 830 | |
| 831 | static int slirp_in_use; |
| 832 | |
| 833 | static void net_slirp_cleanup(VLANClientState *vc) |
| 834 | { |
| 835 | slirp_in_use = 0; |
| 836 | } |
| 837 | |
| 838 | static int net_slirp_init(VLANState *vlan, const char *model, const char *name, |
| 839 | int restricted, const char *ip) |
| 840 | { |
| 841 | if (slirp_in_use) { |
| 842 | /* slirp only supports a single instance so far */ |
| 843 | return -1; |
| 844 | } |
| 845 | if (!slirp_inited) { |
| 846 | slirp_inited = 1; |
| 847 | slirp_init(restricted, ip); |
| 848 | |
| 849 | while (slirp_redirs) { |
| 850 | struct slirp_config_str *config = slirp_redirs; |
| 851 | |
| 852 | slirp_redirection(NULL, config->str); |
| 853 | slirp_redirs = config->next; |
| 854 | qemu_free(config); |
| 855 | } |
| 856 | #ifndef _WIN32 |
| 857 | if (slirp_smb_export) { |
| 858 | slirp_smb(slirp_smb_export); |
| 859 | } |
| 860 | #endif |
| 861 | slirp_init_shapers(); |
| 862 | } |
| 863 | |
| 864 | slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, |
| 865 | NULL, net_slirp_cleanup, NULL); |
| 866 | slirp_vc->info_str[0] = '\0'; |
| 867 | slirp_in_use = 1; |
| 868 | return 0; |
| 869 | } |
| 870 | |
| 871 | static void net_slirp_redir_print(void *opaque, int is_udp, |
| 872 | const SockAddress *laddr, |
| 873 | const SockAddress *faddr) |
| 874 | { |
| 875 | Monitor *mon = (Monitor *)opaque; |
| 876 | uint32_t h_addr; |
| 877 | uint32_t g_addr; |
| 878 | char buf[16]; |
| 879 | |
| 880 | h_addr = sock_address_get_ip(faddr); |
| 881 | g_addr = sock_address_get_ip(laddr); |
| 882 | |
| 883 | monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" ); |
| 884 | snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff, |
| 885 | (h_addr >> 16) & 0xff, |
| 886 | (h_addr >> 8) & 0xff, |
| 887 | (h_addr) & 0xff); |
| 888 | monitor_printf(mon, " %15s |", buf); |
| 889 | monitor_printf(mon, " %5d |", sock_address_get_port(faddr)); |
| 890 | |
| 891 | snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff, |
| 892 | (g_addr >> 16) & 0xff, |
| 893 | (g_addr >> 8) & 0xff, |
| 894 | (g_addr) & 0xff); |
| 895 | monitor_printf(mon, " %15s |", buf); |
| 896 | monitor_printf(mon, " %5d\n", sock_address_get_port(laddr)); |
| 897 | |
| 898 | } |
| 899 | |
| 900 | static void net_slirp_redir_list(Monitor *mon) |
| 901 | { |
| 902 | if (!mon) |
| 903 | return; |
| 904 | |
| 905 | monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n"); |
| 906 | monitor_printf(mon, " | | | | \n"); |
| 907 | slirp_redir_loop(net_slirp_redir_print, mon); |
| 908 | } |
| 909 | |
| 910 | static void net_slirp_redir_rm(Monitor *mon, const char *port_str) |
| 911 | { |
| 912 | int host_port; |
| 913 | char buf[256] = ""; |
| 914 | const char *p = port_str; |
| 915 | int is_udp = 0; |
| 916 | int n; |
| 917 | |
| 918 | if (!mon) |
| 919 | return; |
| 920 | |
| 921 | if (!port_str || !port_str[0]) |
| 922 | goto fail_syntax; |
| 923 | |
| 924 | get_str_sep(buf, sizeof(buf), &p, ':'); |
| 925 | |
| 926 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
| 927 | is_udp = 0; |
| 928 | } else if (!strcmp(buf, "udp")) { |
| 929 | is_udp = 1; |
| 930 | } else { |
| 931 | goto fail_syntax; |
| 932 | } |
| 933 | |
| 934 | host_port = atoi(p); |
| 935 | |
| 936 | n = slirp_redir_rm(is_udp, host_port); |
| 937 | |
| 938 | monitor_printf(mon, "removed %d redirections to %s port %d\n", n, |
| 939 | is_udp ? "udp" : "tcp", host_port); |
| 940 | return; |
| 941 | |
| 942 | fail_syntax: |
| 943 | monitor_printf(mon, "invalid format\n"); |
| 944 | } |
| 945 | |
| 946 | static void slirp_redirection(Monitor *mon, const char *redir_str) |
| 947 | { |
| 948 | uint32_t guest_addr; |
| 949 | int host_port, guest_port; |
| 950 | const char *p; |
| 951 | char buf[256], *r; |
| 952 | int is_udp; |
| 953 | |
| 954 | p = redir_str; |
| 955 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
| 956 | goto fail_syntax; |
| 957 | } |
| 958 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { |
| 959 | is_udp = 0; |
| 960 | } else if (!strcmp(buf, "udp")) { |
| 961 | is_udp = 1; |
| 962 | } else { |
| 963 | goto fail_syntax; |
| 964 | } |
| 965 | |
| 966 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
| 967 | goto fail_syntax; |
| 968 | } |
| 969 | host_port = strtol(buf, &r, 0); |
| 970 | if (r == buf) { |
| 971 | goto fail_syntax; |
| 972 | } |
| 973 | |
| 974 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
| 975 | goto fail_syntax; |
| 976 | } |
| 977 | if (buf[0] == '\0') { |
| 978 | pstrcpy(buf, sizeof(buf), "10.0.2.15"); |
| 979 | } |
| 980 | if (inet_strtoip(buf, &guest_addr) < 0) { |
| 981 | goto fail_syntax; |
| 982 | } |
| 983 | |
| 984 | guest_port = strtol(p, &r, 0); |
| 985 | if (r == p) { |
| 986 | goto fail_syntax; |
| 987 | } |
| 988 | |
| 989 | if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { |
| 990 | config_error(mon, "could not set up redirection '%s'\n", redir_str); |
| 991 | } |
| 992 | return; |
| 993 | |
| 994 | fail_syntax: |
| 995 | config_error(mon, "invalid redirection format '%s'\n", redir_str); |
| 996 | } |
| 997 | |
| 998 | void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2) |
| 999 | { |
| 1000 | struct slirp_config_str *config; |
| 1001 | |
| 1002 | if (!slirp_inited) { |
| 1003 | if (mon) { |
| 1004 | monitor_printf(mon, "user mode network stack not in use\n"); |
| 1005 | } else { |
| 1006 | config = qemu_malloc(sizeof(*config)); |
| 1007 | config->str = redir_str; |
| 1008 | config->next = slirp_redirs; |
| 1009 | slirp_redirs = config; |
| 1010 | } |
| 1011 | return; |
| 1012 | } |
| 1013 | |
| 1014 | if (!strcmp(redir_str, "remove")) { |
| 1015 | net_slirp_redir_rm(mon, redir_opt2); |
| 1016 | return; |
| 1017 | } |
| 1018 | |
| 1019 | if (!strcmp(redir_str, "list")) { |
| 1020 | net_slirp_redir_list(mon); |
| 1021 | return; |
| 1022 | } |
| 1023 | |
| 1024 | slirp_redirection(mon, redir_str); |
| 1025 | } |
| 1026 | |
| 1027 | #ifndef _WIN32 |
| 1028 | |
| 1029 | static char smb_dir[1024]; |
| 1030 | |
| 1031 | static void erase_dir(char *dir_name) |
| 1032 | { |
| 1033 | DIR *d; |
| 1034 | struct dirent *de; |
| 1035 | char filename[1024]; |
| 1036 | |
| 1037 | /* erase all the files in the directory */ |
| 1038 | if ((d = opendir(dir_name)) != NULL) { |
| 1039 | for(;;) { |
| 1040 | de = readdir(d); |
| 1041 | if (!de) |
| 1042 | break; |
| 1043 | if (strcmp(de->d_name, ".") != 0 && |
| 1044 | strcmp(de->d_name, "..") != 0) { |
| 1045 | snprintf(filename, sizeof(filename), "%s/%s", |
| 1046 | smb_dir, de->d_name); |
| 1047 | if (unlink(filename) != 0) /* is it a directory? */ |
| 1048 | erase_dir(filename); |
| 1049 | } |
| 1050 | } |
| 1051 | closedir(d); |
| 1052 | rmdir(dir_name); |
| 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | /* automatic user mode samba server configuration */ |
| 1057 | static void smb_exit(void) |
| 1058 | { |
| 1059 | erase_dir(smb_dir); |
| 1060 | } |
| 1061 | |
| 1062 | static void slirp_smb(const char *exported_dir) |
| 1063 | { |
| 1064 | char smb_conf[1024]; |
| 1065 | char smb_cmdline[1024]; |
| 1066 | FILE *f; |
| 1067 | |
| 1068 | /* XXX: better tmp dir construction */ |
| 1069 | snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid()); |
| 1070 | if (mkdir(smb_dir, 0700) < 0) { |
| 1071 | fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir); |
| 1072 | exit(1); |
| 1073 | } |
| 1074 | snprintf(smb_conf, sizeof(smb_conf), "%s/%s", smb_dir, "smb.conf"); |
| 1075 | |
| 1076 | f = fopen(smb_conf, "w"); |
| 1077 | if (!f) { |
| 1078 | fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf); |
| 1079 | exit(1); |
| 1080 | } |
| 1081 | fprintf(f, |
| 1082 | "[global]\n" |
| 1083 | "private dir=%s\n" |
| 1084 | "smb ports=0\n" |
| 1085 | "socket address=127.0.0.1\n" |
| 1086 | "pid directory=%s\n" |
| 1087 | "lock directory=%s\n" |
| 1088 | "log file=%s/log.smbd\n" |
| 1089 | "smb passwd file=%s/smbpasswd\n" |
| 1090 | "security = share\n" |
| 1091 | "[qemu]\n" |
| 1092 | "path=%s\n" |
| 1093 | "read only=no\n" |
| 1094 | "guest ok=yes\n", |
| 1095 | smb_dir, |
| 1096 | smb_dir, |
| 1097 | smb_dir, |
| 1098 | smb_dir, |
| 1099 | smb_dir, |
| 1100 | exported_dir |
| 1101 | ); |
| 1102 | fclose(f); |
| 1103 | atexit(smb_exit); |
| 1104 | |
| 1105 | snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s", |
| 1106 | SMBD_COMMAND, smb_conf); |
| 1107 | |
| 1108 | slirp_add_exec(0, smb_cmdline, 4, 139); |
| 1109 | } |
| 1110 | |
| 1111 | /* automatic user mode samba server configuration */ |
| 1112 | void net_slirp_smb(const char *exported_dir) |
| 1113 | { |
| 1114 | if (slirp_smb_export) { |
| 1115 | fprintf(stderr, "-smb given twice\n"); |
| 1116 | exit(1); |
| 1117 | } |
| 1118 | slirp_smb_export = exported_dir; |
| 1119 | if (slirp_inited) { |
| 1120 | slirp_smb(exported_dir); |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | #endif /* !defined(_WIN32) */ |
| 1125 | |
| 1126 | void do_info_slirp(Monitor *mon) |
| 1127 | { |
| 1128 | //slirp_stats(); |
| 1129 | } |
| 1130 | |
| 1131 | struct VMChannel { |
| 1132 | CharDriverState *hd; |
| 1133 | int port; |
| 1134 | }; |
| 1135 | |
| 1136 | static int vmchannel_can_read(void *opaque) |
| 1137 | { |
| 1138 | struct VMChannel *vmc = (struct VMChannel*)opaque; |
| 1139 | return slirp_socket_can_recv(4, vmc->port); |
| 1140 | } |
| 1141 | |
| 1142 | static void vmchannel_read(void *opaque, const uint8_t *buf, int size) |
| 1143 | { |
| 1144 | struct VMChannel *vmc = (struct VMChannel*)opaque; |
| 1145 | slirp_socket_recv(4, vmc->port, buf, size); |
| 1146 | } |
| 1147 | |
| 1148 | #endif /* CONFIG_SLIRP */ |
| 1149 | |
| 1150 | #if !defined(_WIN32) |
| 1151 | |
| 1152 | typedef struct TAPState { |
| 1153 | VLANClientState *vc; |
| 1154 | int fd; |
| 1155 | char down_script[1024]; |
| 1156 | char down_script_arg[128]; |
| 1157 | uint8_t buf[4096]; |
| 1158 | } TAPState; |
| 1159 | |
| 1160 | static int launch_script(const char *setup_script, const char *ifname, int fd); |
| 1161 | |
| 1162 | static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov, |
| 1163 | int iovcnt) |
| 1164 | { |
| 1165 | TAPState *s = vc->opaque; |
| 1166 | ssize_t len; |
| 1167 | |
| 1168 | do { |
| 1169 | len = writev(s->fd, iov, iovcnt); |
| 1170 | } while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
| 1171 | |
| 1172 | return len; |
| 1173 | } |
| 1174 | |
| 1175 | static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 1176 | { |
| 1177 | TAPState *s = vc->opaque; |
| 1178 | ssize_t len; |
| 1179 | |
| 1180 | do { |
| 1181 | len = write(s->fd, buf, size); |
| 1182 | } while (len == -1 && (errno == EINTR || errno == EAGAIN)); |
| 1183 | |
| 1184 | return len; |
| 1185 | } |
| 1186 | |
| 1187 | static int tap_can_send(void *opaque) |
| 1188 | { |
| 1189 | TAPState *s = opaque; |
| 1190 | |
| 1191 | return qemu_can_send_packet(s->vc); |
| 1192 | } |
| 1193 | |
| 1194 | #ifdef __sun__ |
| 1195 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
| 1196 | { |
| 1197 | struct strbuf sbuf; |
| 1198 | int f = 0; |
| 1199 | |
| 1200 | sbuf.maxlen = maxlen; |
| 1201 | sbuf.buf = (char *)buf; |
| 1202 | |
| 1203 | return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1; |
| 1204 | } |
| 1205 | #else |
| 1206 | static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen) |
| 1207 | { |
| 1208 | return read(tapfd, buf, maxlen); |
| 1209 | } |
| 1210 | #endif |
| 1211 | |
| 1212 | static void tap_send(void *opaque); |
| 1213 | |
| 1214 | static void tap_send_completed(VLANClientState *vc) |
| 1215 | { |
| 1216 | TAPState *s = vc->opaque; |
| 1217 | |
| 1218 | qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s); |
| 1219 | } |
| 1220 | |
| 1221 | static void tap_send(void *opaque) |
| 1222 | { |
| 1223 | TAPState *s = opaque; |
| 1224 | int size; |
| 1225 | |
| 1226 | do { |
| 1227 | size = tap_read_packet(s->fd, s->buf, sizeof(s->buf)); |
| 1228 | if (size <= 0) { |
| 1229 | break; |
| 1230 | } |
| 1231 | |
| 1232 | size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed); |
| 1233 | if (size == 0) { |
| 1234 | qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL); |
| 1235 | } |
| 1236 | } while (size > 0); |
| 1237 | } |
| 1238 | |
| 1239 | static void tap_cleanup(VLANClientState *vc) |
| 1240 | { |
| 1241 | TAPState *s = vc->opaque; |
| 1242 | |
| 1243 | if (s->down_script[0]) |
| 1244 | launch_script(s->down_script, s->down_script_arg, s->fd); |
| 1245 | |
| 1246 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1247 | close(s->fd); |
| 1248 | qemu_free(s); |
| 1249 | } |
| 1250 | |
| 1251 | /* fd support */ |
| 1252 | |
| 1253 | static TAPState *net_tap_fd_init(VLANState *vlan, |
| 1254 | const char *model, |
| 1255 | const char *name, |
| 1256 | int fd) |
| 1257 | { |
| 1258 | TAPState *s; |
| 1259 | |
| 1260 | s = qemu_mallocz(sizeof(TAPState)); |
| 1261 | s->fd = fd; |
| 1262 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive, |
| 1263 | tap_receive_iov, tap_cleanup, s); |
| 1264 | qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s); |
| 1265 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd); |
| 1266 | return s; |
| 1267 | } |
| 1268 | |
David 'Digit' Turner | 2c538c8 | 2010-05-10 16:48:20 -0700 | [diff] [blame] | 1269 | #if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1270 | static int tap_open(char *ifname, int ifname_size) |
| 1271 | { |
| 1272 | int fd; |
| 1273 | char *dev; |
| 1274 | struct stat s; |
| 1275 | |
| 1276 | TFR(fd = open("/dev/tap", O_RDWR)); |
| 1277 | if (fd < 0) { |
| 1278 | fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n"); |
| 1279 | return -1; |
| 1280 | } |
| 1281 | |
| 1282 | fstat(fd, &s); |
| 1283 | dev = devname(s.st_rdev, S_IFCHR); |
| 1284 | pstrcpy(ifname, ifname_size, dev); |
| 1285 | |
| 1286 | fcntl(fd, F_SETFL, O_NONBLOCK); |
| 1287 | return fd; |
| 1288 | } |
| 1289 | #elif defined(__sun__) |
| 1290 | #define TUNNEWPPA (('T'<<16) | 0x0001) |
| 1291 | /* |
| 1292 | * Allocate TAP device, returns opened fd. |
| 1293 | * Stores dev name in the first arg(must be large enough). |
| 1294 | */ |
| 1295 | static int tap_alloc(char *dev, size_t dev_size) |
| 1296 | { |
| 1297 | int tap_fd, if_fd, ppa = -1; |
| 1298 | static int ip_fd = 0; |
| 1299 | char *ptr; |
| 1300 | |
| 1301 | static int arp_fd = 0; |
| 1302 | int ip_muxid, arp_muxid; |
| 1303 | struct strioctl strioc_if, strioc_ppa; |
| 1304 | int link_type = I_PLINK;; |
| 1305 | struct lifreq ifr; |
| 1306 | char actual_name[32] = ""; |
| 1307 | |
| 1308 | memset(&ifr, 0x0, sizeof(ifr)); |
| 1309 | |
| 1310 | if( *dev ){ |
| 1311 | ptr = dev; |
| 1312 | while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++; |
| 1313 | ppa = atoi(ptr); |
| 1314 | } |
| 1315 | |
| 1316 | /* Check if IP device was opened */ |
| 1317 | if( ip_fd ) |
| 1318 | close(ip_fd); |
| 1319 | |
| 1320 | TFR(ip_fd = open("/dev/udp", O_RDWR, 0)); |
| 1321 | if (ip_fd < 0) { |
| 1322 | syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)"); |
| 1323 | return -1; |
| 1324 | } |
| 1325 | |
| 1326 | TFR(tap_fd = open("/dev/tap", O_RDWR, 0)); |
| 1327 | if (tap_fd < 0) { |
| 1328 | syslog(LOG_ERR, "Can't open /dev/tap"); |
| 1329 | return -1; |
| 1330 | } |
| 1331 | |
| 1332 | /* Assign a new PPA and get its unit number. */ |
| 1333 | strioc_ppa.ic_cmd = TUNNEWPPA; |
| 1334 | strioc_ppa.ic_timout = 0; |
| 1335 | strioc_ppa.ic_len = sizeof(ppa); |
| 1336 | strioc_ppa.ic_dp = (char *)&ppa; |
| 1337 | if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0) |
| 1338 | syslog (LOG_ERR, "Can't assign new interface"); |
| 1339 | |
| 1340 | TFR(if_fd = open("/dev/tap", O_RDWR, 0)); |
| 1341 | if (if_fd < 0) { |
| 1342 | syslog(LOG_ERR, "Can't open /dev/tap (2)"); |
| 1343 | return -1; |
| 1344 | } |
| 1345 | if(ioctl(if_fd, I_PUSH, "ip") < 0){ |
| 1346 | syslog(LOG_ERR, "Can't push IP module"); |
| 1347 | return -1; |
| 1348 | } |
| 1349 | |
| 1350 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0) |
| 1351 | syslog(LOG_ERR, "Can't get flags\n"); |
| 1352 | |
| 1353 | snprintf (actual_name, 32, "tap%d", ppa); |
| 1354 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); |
| 1355 | |
| 1356 | ifr.lifr_ppa = ppa; |
| 1357 | /* Assign ppa according to the unit number returned by tun device */ |
| 1358 | |
| 1359 | if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0) |
| 1360 | syslog (LOG_ERR, "Can't set PPA %d", ppa); |
| 1361 | if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0) |
| 1362 | syslog (LOG_ERR, "Can't get flags\n"); |
| 1363 | /* Push arp module to if_fd */ |
| 1364 | if (ioctl (if_fd, I_PUSH, "arp") < 0) |
| 1365 | syslog (LOG_ERR, "Can't push ARP module (2)"); |
| 1366 | |
| 1367 | /* Push arp module to ip_fd */ |
| 1368 | if (ioctl (ip_fd, I_POP, NULL) < 0) |
| 1369 | syslog (LOG_ERR, "I_POP failed\n"); |
| 1370 | if (ioctl (ip_fd, I_PUSH, "arp") < 0) |
| 1371 | syslog (LOG_ERR, "Can't push ARP module (3)\n"); |
| 1372 | /* Open arp_fd */ |
| 1373 | TFR(arp_fd = open ("/dev/tap", O_RDWR, 0)); |
| 1374 | if (arp_fd < 0) |
| 1375 | syslog (LOG_ERR, "Can't open %s\n", "/dev/tap"); |
| 1376 | |
| 1377 | /* Set ifname to arp */ |
| 1378 | strioc_if.ic_cmd = SIOCSLIFNAME; |
| 1379 | strioc_if.ic_timout = 0; |
| 1380 | strioc_if.ic_len = sizeof(ifr); |
| 1381 | strioc_if.ic_dp = (char *)𝔦 |
| 1382 | if (ioctl(arp_fd, I_STR, &strioc_if) < 0){ |
| 1383 | syslog (LOG_ERR, "Can't set ifname to arp\n"); |
| 1384 | } |
| 1385 | |
| 1386 | if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){ |
| 1387 | syslog(LOG_ERR, "Can't link TAP device to IP"); |
| 1388 | return -1; |
| 1389 | } |
| 1390 | |
| 1391 | if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0) |
| 1392 | syslog (LOG_ERR, "Can't link TAP device to ARP"); |
| 1393 | |
| 1394 | close (if_fd); |
| 1395 | |
| 1396 | memset(&ifr, 0x0, sizeof(ifr)); |
| 1397 | pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name); |
| 1398 | ifr.lifr_ip_muxid = ip_muxid; |
| 1399 | ifr.lifr_arp_muxid = arp_muxid; |
| 1400 | |
| 1401 | if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0) |
| 1402 | { |
| 1403 | ioctl (ip_fd, I_PUNLINK , arp_muxid); |
| 1404 | ioctl (ip_fd, I_PUNLINK, ip_muxid); |
| 1405 | syslog (LOG_ERR, "Can't set multiplexor id"); |
| 1406 | } |
| 1407 | |
| 1408 | snprintf(dev, dev_size, "tap%d", ppa); |
| 1409 | return tap_fd; |
| 1410 | } |
| 1411 | |
| 1412 | static int tap_open(char *ifname, int ifname_size) |
| 1413 | { |
| 1414 | char dev[10]=""; |
| 1415 | int fd; |
| 1416 | if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){ |
| 1417 | fprintf(stderr, "Cannot allocate TAP device\n"); |
| 1418 | return -1; |
| 1419 | } |
| 1420 | pstrcpy(ifname, ifname_size, dev); |
| 1421 | fcntl(fd, F_SETFL, O_NONBLOCK); |
| 1422 | return fd; |
| 1423 | } |
| 1424 | #elif defined (_AIX) |
| 1425 | static int tap_open(char *ifname, int ifname_size) |
| 1426 | { |
| 1427 | fprintf (stderr, "no tap on AIX\n"); |
| 1428 | return -1; |
| 1429 | } |
| 1430 | #else |
| 1431 | static int tap_open(char *ifname, int ifname_size) |
| 1432 | { |
| 1433 | struct ifreq ifr; |
| 1434 | int fd, ret; |
| 1435 | |
| 1436 | TFR(fd = open("/dev/net/tun", O_RDWR)); |
| 1437 | if (fd < 0) { |
| 1438 | fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n"); |
| 1439 | return -1; |
| 1440 | } |
| 1441 | memset(&ifr, 0, sizeof(ifr)); |
| 1442 | ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| 1443 | if (ifname[0] != '\0') |
| 1444 | pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname); |
| 1445 | else |
| 1446 | pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d"); |
| 1447 | ret = ioctl(fd, TUNSETIFF, (void *) &ifr); |
| 1448 | if (ret != 0) { |
| 1449 | fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n"); |
| 1450 | close(fd); |
| 1451 | return -1; |
| 1452 | } |
| 1453 | pstrcpy(ifname, ifname_size, ifr.ifr_name); |
| 1454 | fcntl(fd, F_SETFL, O_NONBLOCK); |
| 1455 | return fd; |
| 1456 | } |
| 1457 | #endif |
| 1458 | |
| 1459 | static int launch_script(const char *setup_script, const char *ifname, int fd) |
| 1460 | { |
| 1461 | sigset_t oldmask, mask; |
| 1462 | int pid, status; |
| 1463 | char *args[3]; |
| 1464 | char **parg; |
| 1465 | |
| 1466 | sigemptyset(&mask); |
| 1467 | sigaddset(&mask, SIGCHLD); |
| 1468 | sigprocmask(SIG_BLOCK, &mask, &oldmask); |
| 1469 | |
| 1470 | /* try to launch network script */ |
| 1471 | pid = fork(); |
| 1472 | if (pid == 0) { |
| 1473 | int open_max = sysconf(_SC_OPEN_MAX), i; |
| 1474 | |
| 1475 | for (i = 0; i < open_max; i++) { |
| 1476 | if (i != STDIN_FILENO && |
| 1477 | i != STDOUT_FILENO && |
| 1478 | i != STDERR_FILENO && |
| 1479 | i != fd) { |
| 1480 | close(i); |
| 1481 | } |
| 1482 | } |
| 1483 | parg = args; |
| 1484 | *parg++ = (char *)setup_script; |
| 1485 | *parg++ = (char *)ifname; |
| 1486 | *parg++ = NULL; |
| 1487 | execv(setup_script, args); |
| 1488 | _exit(1); |
| 1489 | } else if (pid > 0) { |
| 1490 | while (waitpid(pid, &status, 0) != pid) { |
| 1491 | /* loop */ |
| 1492 | } |
| 1493 | sigprocmask(SIG_SETMASK, &oldmask, NULL); |
| 1494 | |
| 1495 | if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { |
| 1496 | return 0; |
| 1497 | } |
| 1498 | } |
| 1499 | fprintf(stderr, "%s: could not launch network script\n", setup_script); |
| 1500 | return -1; |
| 1501 | } |
| 1502 | |
| 1503 | static int net_tap_init(VLANState *vlan, const char *model, |
| 1504 | const char *name, const char *ifname1, |
| 1505 | const char *setup_script, const char *down_script) |
| 1506 | { |
| 1507 | TAPState *s; |
| 1508 | int fd; |
| 1509 | char ifname[128]; |
| 1510 | |
| 1511 | if (ifname1 != NULL) |
| 1512 | pstrcpy(ifname, sizeof(ifname), ifname1); |
| 1513 | else |
| 1514 | ifname[0] = '\0'; |
| 1515 | TFR(fd = tap_open(ifname, sizeof(ifname))); |
| 1516 | if (fd < 0) |
| 1517 | return -1; |
| 1518 | |
| 1519 | if (!setup_script || !strcmp(setup_script, "no")) |
| 1520 | setup_script = ""; |
| 1521 | if (setup_script[0] != '\0') { |
| 1522 | if (launch_script(setup_script, ifname, fd)) |
| 1523 | return -1; |
| 1524 | } |
| 1525 | s = net_tap_fd_init(vlan, model, name, fd); |
| 1526 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
| 1527 | "ifname=%s,script=%s,downscript=%s", |
| 1528 | ifname, setup_script, down_script); |
| 1529 | if (down_script && strcmp(down_script, "no")) { |
| 1530 | snprintf(s->down_script, sizeof(s->down_script), "%s", down_script); |
| 1531 | snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname); |
| 1532 | } |
| 1533 | return 0; |
| 1534 | } |
| 1535 | |
| 1536 | #endif /* !_WIN32 */ |
| 1537 | |
| 1538 | #if defined(CONFIG_VDE) |
| 1539 | typedef struct VDEState { |
| 1540 | VLANClientState *vc; |
| 1541 | VDECONN *vde; |
| 1542 | } VDEState; |
| 1543 | |
| 1544 | static void vde_to_qemu(void *opaque) |
| 1545 | { |
| 1546 | VDEState *s = opaque; |
| 1547 | uint8_t buf[4096]; |
| 1548 | int size; |
| 1549 | |
| 1550 | size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0); |
| 1551 | if (size > 0) { |
| 1552 | qemu_send_packet(s->vc, buf, size); |
| 1553 | } |
| 1554 | } |
| 1555 | |
| 1556 | static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 1557 | { |
| 1558 | VDEState *s = vc->opaque; |
| 1559 | ssize_t ret; |
| 1560 | |
| 1561 | do { |
| 1562 | ret = vde_send(s->vde, (const char *)buf, size, 0); |
| 1563 | } while (ret < 0 && errno == EINTR); |
| 1564 | |
| 1565 | return ret; |
| 1566 | } |
| 1567 | |
| 1568 | static void vde_cleanup(VLANClientState *vc) |
| 1569 | { |
| 1570 | VDEState *s = vc->opaque; |
| 1571 | qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL); |
| 1572 | vde_close(s->vde); |
| 1573 | qemu_free(s); |
| 1574 | } |
| 1575 | |
| 1576 | static int net_vde_init(VLANState *vlan, const char *model, |
| 1577 | const char *name, const char *sock, |
| 1578 | int port, const char *group, int mode) |
| 1579 | { |
| 1580 | VDEState *s; |
| 1581 | char *init_group = strlen(group) ? (char *)group : NULL; |
| 1582 | char *init_sock = strlen(sock) ? (char *)sock : NULL; |
| 1583 | |
| 1584 | struct vde_open_args args = { |
| 1585 | .port = port, |
| 1586 | .group = init_group, |
| 1587 | .mode = mode, |
| 1588 | }; |
| 1589 | |
| 1590 | s = qemu_mallocz(sizeof(VDEState)); |
| 1591 | s->vde = vde_open(init_sock, (char *)"QEMU", &args); |
| 1592 | if (!s->vde){ |
| 1593 | free(s); |
| 1594 | return -1; |
| 1595 | } |
| 1596 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive, |
| 1597 | NULL, vde_cleanup, s); |
| 1598 | qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); |
| 1599 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d", |
| 1600 | sock, vde_datafd(s->vde)); |
| 1601 | return 0; |
| 1602 | } |
| 1603 | #endif |
| 1604 | |
| 1605 | /* network connection */ |
| 1606 | typedef struct NetSocketState { |
| 1607 | VLANClientState *vc; |
| 1608 | int fd; |
| 1609 | int state; /* 0 = getting length, 1 = getting data */ |
| 1610 | unsigned int index; |
| 1611 | unsigned int packet_len; |
| 1612 | uint8_t buf[4096]; |
| 1613 | SockAddress dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */ |
| 1614 | } NetSocketState; |
| 1615 | |
| 1616 | typedef struct NetSocketListenState { |
| 1617 | VLANState *vlan; |
| 1618 | char *model; |
| 1619 | char *name; |
| 1620 | int fd; |
| 1621 | } NetSocketListenState; |
| 1622 | |
| 1623 | /* XXX: we consider we can send the whole packet without blocking */ |
| 1624 | static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 1625 | { |
| 1626 | NetSocketState *s = vc->opaque; |
| 1627 | uint32_t len; |
| 1628 | len = htonl(size); |
| 1629 | |
| 1630 | socket_send(s->fd, (const uint8_t *)&len, sizeof(len)); |
| 1631 | return socket_send(s->fd, buf, size); |
| 1632 | } |
| 1633 | |
| 1634 | static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 1635 | { |
| 1636 | NetSocketState *s = vc->opaque; |
| 1637 | |
Dries Harnie | 5e097bf | 2009-12-31 02:45:08 +0100 | [diff] [blame] | 1638 | return socket_sendto(s->fd, buf, size, &s->dgram_dst); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1639 | } |
| 1640 | |
| 1641 | static void net_socket_send(void *opaque) |
| 1642 | { |
| 1643 | NetSocketState *s = opaque; |
| 1644 | int size, err; |
| 1645 | unsigned l; |
| 1646 | uint8_t buf1[4096]; |
| 1647 | const uint8_t *buf; |
| 1648 | |
| 1649 | size = recv(s->fd, (void *)buf1, sizeof(buf1), 0); |
| 1650 | if (size < 0) { |
| 1651 | err = socket_error(); |
David 'Digit' Turner | ce0f4b0 | 2010-03-25 11:11:29 -0700 | [diff] [blame] | 1652 | if (err != EWOULDBLOCK && err != EAGAIN) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1653 | goto eoc; |
| 1654 | } else if (size == 0) { |
| 1655 | /* end of connection */ |
| 1656 | eoc: |
| 1657 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1658 | closesocket(s->fd); |
| 1659 | return; |
| 1660 | } |
| 1661 | buf = buf1; |
| 1662 | while (size > 0) { |
| 1663 | /* reassemble a packet from the network */ |
| 1664 | switch(s->state) { |
| 1665 | case 0: |
| 1666 | l = 4 - s->index; |
| 1667 | if (l > size) |
| 1668 | l = size; |
| 1669 | memcpy(s->buf + s->index, buf, l); |
| 1670 | buf += l; |
| 1671 | size -= l; |
| 1672 | s->index += l; |
| 1673 | if (s->index == 4) { |
| 1674 | /* got length */ |
| 1675 | s->packet_len = ntohl(*(uint32_t *)s->buf); |
| 1676 | s->index = 0; |
| 1677 | s->state = 1; |
| 1678 | } |
| 1679 | break; |
| 1680 | case 1: |
| 1681 | l = s->packet_len - s->index; |
| 1682 | if (l > size) |
| 1683 | l = size; |
| 1684 | if (s->index + l <= sizeof(s->buf)) { |
| 1685 | memcpy(s->buf + s->index, buf, l); |
| 1686 | } else { |
| 1687 | fprintf(stderr, "serious error: oversized packet received," |
| 1688 | "connection terminated.\n"); |
| 1689 | s->state = 0; |
| 1690 | goto eoc; |
| 1691 | } |
| 1692 | |
| 1693 | s->index += l; |
| 1694 | buf += l; |
| 1695 | size -= l; |
| 1696 | if (s->index >= s->packet_len) { |
| 1697 | qemu_send_packet(s->vc, s->buf, s->packet_len); |
| 1698 | s->index = 0; |
| 1699 | s->state = 0; |
| 1700 | } |
| 1701 | break; |
| 1702 | } |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | static void net_socket_send_dgram(void *opaque) |
| 1707 | { |
| 1708 | NetSocketState *s = opaque; |
| 1709 | int size; |
| 1710 | |
| 1711 | size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0); |
| 1712 | if (size < 0) |
| 1713 | return; |
| 1714 | if (size == 0) { |
| 1715 | /* end of connection */ |
| 1716 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1717 | return; |
| 1718 | } |
| 1719 | qemu_send_packet(s->vc, s->buf, size); |
| 1720 | } |
| 1721 | |
| 1722 | static int net_socket_mcast_create(SockAddress *mcastaddr) |
| 1723 | { |
| 1724 | int fd; |
| 1725 | int ret; |
| 1726 | if (!IN_MULTICAST(sock_address_get_ip(mcastaddr))) { |
| 1727 | fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) does not contain a multicast address\n", |
| 1728 | sock_address_to_string(mcastaddr), |
| 1729 | sock_address_get_ip(mcastaddr)); |
| 1730 | return -1; |
| 1731 | |
| 1732 | } |
| 1733 | fd = socket_create_inet(SOCKET_DGRAM); |
| 1734 | if (fd < 0) { |
| 1735 | perror("socket(PF_INET, SOCK_DGRAM)"); |
| 1736 | return -1; |
| 1737 | } |
| 1738 | |
| 1739 | ret = socket_set_xreuseaddr(fd); |
| 1740 | if (ret < 0) { |
| 1741 | perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)"); |
| 1742 | goto fail; |
| 1743 | } |
| 1744 | |
| 1745 | ret = socket_bind(fd, mcastaddr); |
| 1746 | if (ret < 0) { |
| 1747 | perror("bind"); |
| 1748 | goto fail; |
| 1749 | } |
| 1750 | |
| 1751 | /* Add host to multicast group */ |
| 1752 | ret = socket_mcast_inet_add_membership(fd, sock_address_get_ip(mcastaddr)); |
| 1753 | if (ret < 0) { |
| 1754 | perror("setsockopt(IP_ADD_MEMBERSHIP)"); |
| 1755 | goto fail; |
| 1756 | } |
| 1757 | |
| 1758 | /* Force mcast msgs to loopback (eg. several QEMUs in same host */ |
| 1759 | ret = socket_mcast_inet_set_loop(fd, 1); |
| 1760 | if (ret < 0) { |
| 1761 | perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)"); |
| 1762 | goto fail; |
| 1763 | } |
| 1764 | |
| 1765 | socket_set_nonblock(fd); |
| 1766 | return fd; |
| 1767 | fail: |
| 1768 | if (fd >= 0) |
| 1769 | socket_close(fd); |
| 1770 | return -1; |
| 1771 | } |
| 1772 | |
| 1773 | static void net_socket_cleanup(VLANClientState *vc) |
| 1774 | { |
| 1775 | NetSocketState *s = vc->opaque; |
| 1776 | qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 1777 | socket_close(s->fd); |
| 1778 | qemu_free(s); |
| 1779 | } |
| 1780 | |
| 1781 | static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan, |
| 1782 | const char *model, |
| 1783 | const char *name, |
| 1784 | int fd, int is_connected) |
| 1785 | { |
| 1786 | SockAddress saddr; |
| 1787 | int newfd; |
| 1788 | NetSocketState *s; |
| 1789 | |
| 1790 | /* fd passed: multicast: "learn" dgram_dst address from bound address and save it |
| 1791 | * Because this may be "shared" socket from a "master" process, datagrams would be recv() |
| 1792 | * by ONLY ONE process: we must "clone" this dgram socket --jjo |
| 1793 | */ |
| 1794 | |
| 1795 | if (is_connected) { |
| 1796 | if (socket_get_address(fd, &saddr) == 0) { |
| 1797 | /* must be bound */ |
| 1798 | if (sock_address_get_ip(&saddr) == 0) { |
| 1799 | fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, cannot setup multicast dst addr\n", |
| 1800 | fd); |
| 1801 | return NULL; |
| 1802 | } |
| 1803 | /* clone dgram socket */ |
| 1804 | newfd = net_socket_mcast_create(&saddr); |
| 1805 | if (newfd < 0) { |
| 1806 | /* error already reported by net_socket_mcast_create() */ |
| 1807 | socket_close(fd); |
| 1808 | return NULL; |
| 1809 | } |
| 1810 | /* clone newfd to fd, close newfd */ |
| 1811 | dup2(newfd, fd); |
| 1812 | socket_close(newfd); |
| 1813 | |
| 1814 | } else { |
| 1815 | fprintf(stderr, "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n", |
| 1816 | fd, strerror(errno)); |
| 1817 | return NULL; |
| 1818 | } |
| 1819 | } |
| 1820 | |
| 1821 | s = qemu_mallocz(sizeof(NetSocketState)); |
| 1822 | s->fd = fd; |
| 1823 | |
| 1824 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram, |
| 1825 | NULL, net_socket_cleanup, s); |
| 1826 | qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s); |
| 1827 | |
| 1828 | /* mcast: save bound address as dst */ |
| 1829 | if (is_connected) s->dgram_dst=saddr; |
| 1830 | |
| 1831 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
| 1832 | "socket: fd=%d (%s mcast=%s)", |
| 1833 | fd, is_connected? "cloned" : "", |
| 1834 | sock_address_to_string(&saddr)); |
| 1835 | return s; |
| 1836 | } |
| 1837 | |
| 1838 | static void net_socket_connect(void *opaque) |
| 1839 | { |
| 1840 | NetSocketState *s = opaque; |
| 1841 | qemu_set_fd_handler(s->fd, net_socket_send, NULL, s); |
| 1842 | } |
| 1843 | |
| 1844 | static NetSocketState *net_socket_fd_init_stream(VLANState *vlan, |
| 1845 | const char *model, |
| 1846 | const char *name, |
| 1847 | int fd, int is_connected) |
| 1848 | { |
| 1849 | NetSocketState *s; |
| 1850 | s = qemu_mallocz(sizeof(NetSocketState)); |
| 1851 | s->fd = fd; |
| 1852 | s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive, |
| 1853 | NULL, net_socket_cleanup, s); |
| 1854 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
| 1855 | "socket: fd=%d", fd); |
| 1856 | if (is_connected) { |
| 1857 | net_socket_connect(s); |
| 1858 | } else { |
| 1859 | qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); |
| 1860 | } |
| 1861 | return s; |
| 1862 | } |
| 1863 | |
| 1864 | static NetSocketState *net_socket_fd_init(VLANState *vlan, |
| 1865 | const char *model, const char *name, |
| 1866 | int fd, int is_connected) |
| 1867 | { |
| 1868 | SocketType so_type = socket_get_type(fd); |
| 1869 | |
| 1870 | switch(so_type) { |
| 1871 | case SOCKET_DGRAM: |
| 1872 | return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected); |
| 1873 | case SOCKET_STREAM: |
| 1874 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
| 1875 | default: |
| 1876 | /* who knows ... this could be a eg. a pty, do warn and continue as stream */ |
| 1877 | fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd); |
| 1878 | return net_socket_fd_init_stream(vlan, model, name, fd, is_connected); |
| 1879 | } |
| 1880 | return NULL; |
| 1881 | } |
| 1882 | |
| 1883 | static void net_socket_accept(void *opaque) |
| 1884 | { |
| 1885 | NetSocketListenState *s = opaque; |
| 1886 | NetSocketState *s1; |
| 1887 | SockAddress saddr; |
| 1888 | int fd; |
| 1889 | |
| 1890 | for(;;) { |
| 1891 | fd = socket_accept(s->fd, &saddr); |
| 1892 | if (fd < 0) { |
| 1893 | return; |
| 1894 | } else if (fd >= 0) { |
| 1895 | break; |
| 1896 | } |
| 1897 | } |
| 1898 | s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1); |
| 1899 | if (!s1) { |
| 1900 | socket_close(fd); |
| 1901 | } else { |
| 1902 | snprintf(s1->vc->info_str, sizeof(s1->vc->info_str), |
| 1903 | "socket: connection from %s", sock_address_to_string(&saddr)); |
| 1904 | } |
| 1905 | } |
| 1906 | |
| 1907 | static int net_socket_listen_init(VLANState *vlan, |
| 1908 | const char *model, |
| 1909 | const char *name, |
| 1910 | const char *host_str) |
| 1911 | { |
| 1912 | NetSocketListenState *s; |
| 1913 | int fd, ret; |
| 1914 | SockAddress saddr; |
| 1915 | |
| 1916 | if (parse_host_port(&saddr, host_str) < 0) |
| 1917 | return -1; |
| 1918 | |
| 1919 | s = qemu_mallocz(sizeof(NetSocketListenState)); |
| 1920 | |
| 1921 | fd = socket_create_inet(SOCKET_STREAM); |
| 1922 | if (fd < 0) { |
| 1923 | perror("socket"); |
| 1924 | return -1; |
| 1925 | } |
| 1926 | socket_set_nonblock(fd); |
| 1927 | |
| 1928 | /* allow fast reuse */ |
| 1929 | socket_set_xreuseaddr(fd); |
| 1930 | |
| 1931 | ret = socket_bind(fd, &saddr); |
| 1932 | if (ret < 0) { |
| 1933 | perror("bind"); |
| 1934 | return -1; |
| 1935 | } |
| 1936 | ret = socket_listen(fd, 0); |
| 1937 | if (ret < 0) { |
| 1938 | perror("listen"); |
| 1939 | return -1; |
| 1940 | } |
| 1941 | s->vlan = vlan; |
| 1942 | s->model = strdup(model); |
| 1943 | s->name = name ? strdup(name) : NULL; |
| 1944 | s->fd = fd; |
| 1945 | qemu_set_fd_handler(fd, net_socket_accept, NULL, s); |
| 1946 | return 0; |
| 1947 | } |
| 1948 | |
| 1949 | static int net_socket_connect_init(VLANState *vlan, |
| 1950 | const char *model, |
| 1951 | const char *name, |
| 1952 | const char *host_str) |
| 1953 | { |
| 1954 | NetSocketState *s; |
| 1955 | int fd, connected, ret, err; |
| 1956 | SockAddress saddr; |
| 1957 | |
| 1958 | if (parse_host_port(&saddr, host_str) < 0) |
| 1959 | return -1; |
| 1960 | |
| 1961 | fd = socket_create_inet(SOCKET_STREAM); |
| 1962 | if (fd < 0) { |
| 1963 | perror("socket"); |
| 1964 | return -1; |
| 1965 | } |
| 1966 | socket_set_nonblock(fd); |
| 1967 | |
| 1968 | connected = 0; |
| 1969 | for(;;) { |
| 1970 | ret = socket_connect(fd, &saddr); |
| 1971 | if (ret < 0) { |
| 1972 | err = socket_error(); |
| 1973 | if (err == EWOULDBLOCK || err == EAGAIN) { |
| 1974 | } else if (err == EINPROGRESS || err == EALREADY) { |
| 1975 | break; |
| 1976 | } else { |
| 1977 | perror("connect"); |
| 1978 | socket_close(fd); |
| 1979 | return -1; |
| 1980 | } |
| 1981 | } else { |
| 1982 | connected = 1; |
| 1983 | break; |
| 1984 | } |
| 1985 | } |
| 1986 | s = net_socket_fd_init(vlan, model, name, fd, connected); |
| 1987 | if (!s) |
| 1988 | return -1; |
| 1989 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
| 1990 | "socket: connect to %s", |
| 1991 | sock_address_to_string(&saddr)); |
| 1992 | return 0; |
| 1993 | } |
| 1994 | |
| 1995 | static int net_socket_mcast_init(VLANState *vlan, |
| 1996 | const char *model, |
| 1997 | const char *name, |
| 1998 | const char *host_str) |
| 1999 | { |
| 2000 | NetSocketState *s; |
| 2001 | int fd; |
| 2002 | SockAddress saddr; |
| 2003 | |
| 2004 | if (parse_host_port(&saddr, host_str) < 0) |
| 2005 | return -1; |
| 2006 | |
| 2007 | |
| 2008 | fd = net_socket_mcast_create(&saddr); |
| 2009 | if (fd < 0) |
| 2010 | return -1; |
| 2011 | |
| 2012 | s = net_socket_fd_init(vlan, model, name, fd, 0); |
| 2013 | if (!s) |
| 2014 | return -1; |
| 2015 | |
| 2016 | s->dgram_dst = saddr; |
| 2017 | |
| 2018 | snprintf(s->vc->info_str, sizeof(s->vc->info_str), |
| 2019 | "socket: mcast=%s", |
| 2020 | sock_address_to_string(&saddr)); |
| 2021 | return 0; |
| 2022 | |
| 2023 | } |
| 2024 | |
| 2025 | typedef struct DumpState { |
| 2026 | VLANClientState *pcap_vc; |
| 2027 | int fd; |
| 2028 | int pcap_caplen; |
| 2029 | } DumpState; |
| 2030 | |
| 2031 | #define PCAP_MAGIC 0xa1b2c3d4 |
| 2032 | |
| 2033 | struct pcap_file_hdr { |
| 2034 | uint32_t magic; |
| 2035 | uint16_t version_major; |
| 2036 | uint16_t version_minor; |
| 2037 | int32_t thiszone; |
| 2038 | uint32_t sigfigs; |
| 2039 | uint32_t snaplen; |
| 2040 | uint32_t linktype; |
| 2041 | }; |
| 2042 | |
| 2043 | struct pcap_sf_pkthdr { |
| 2044 | struct { |
| 2045 | int32_t tv_sec; |
| 2046 | int32_t tv_usec; |
| 2047 | } ts; |
| 2048 | uint32_t caplen; |
| 2049 | uint32_t len; |
| 2050 | }; |
| 2051 | |
| 2052 | static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size) |
| 2053 | { |
| 2054 | DumpState *s = vc->opaque; |
| 2055 | struct pcap_sf_pkthdr hdr; |
| 2056 | int64_t ts; |
| 2057 | int caplen; |
| 2058 | |
| 2059 | /* Early return in case of previous error. */ |
| 2060 | if (s->fd < 0) { |
| 2061 | return size; |
| 2062 | } |
| 2063 | |
David 'Digit' Turner | a7fb77d | 2010-05-10 23:50:54 -0700 | [diff] [blame] | 2064 | ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec()); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2065 | caplen = size > s->pcap_caplen ? s->pcap_caplen : size; |
| 2066 | |
| 2067 | hdr.ts.tv_sec = ts / 1000000; |
| 2068 | hdr.ts.tv_usec = ts % 1000000; |
| 2069 | hdr.caplen = caplen; |
| 2070 | hdr.len = size; |
| 2071 | if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) || |
| 2072 | write(s->fd, buf, caplen) != caplen) { |
| 2073 | qemu_log("-net dump write error - stop dump\n"); |
| 2074 | close(s->fd); |
| 2075 | s->fd = -1; |
| 2076 | } |
| 2077 | |
| 2078 | return size; |
| 2079 | } |
| 2080 | |
| 2081 | static void net_dump_cleanup(VLANClientState *vc) |
| 2082 | { |
| 2083 | DumpState *s = vc->opaque; |
| 2084 | |
| 2085 | close(s->fd); |
| 2086 | qemu_free(s); |
| 2087 | } |
| 2088 | |
| 2089 | static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, |
| 2090 | const char *name, const char *filename, int len) |
| 2091 | { |
| 2092 | struct pcap_file_hdr hdr; |
| 2093 | DumpState *s; |
| 2094 | |
| 2095 | s = qemu_malloc(sizeof(DumpState)); |
| 2096 | |
| 2097 | s->fd = open(filename, O_CREAT | O_WRONLY, 0644); |
| 2098 | if (s->fd < 0) { |
| 2099 | config_error(mon, "-net dump: can't open %s\n", filename); |
| 2100 | return -1; |
| 2101 | } |
| 2102 | |
| 2103 | s->pcap_caplen = len; |
| 2104 | |
| 2105 | hdr.magic = PCAP_MAGIC; |
| 2106 | hdr.version_major = 2; |
| 2107 | hdr.version_minor = 4; |
| 2108 | hdr.thiszone = 0; |
| 2109 | hdr.sigfigs = 0; |
| 2110 | hdr.snaplen = s->pcap_caplen; |
| 2111 | hdr.linktype = 1; |
| 2112 | |
| 2113 | if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { |
| 2114 | config_error(mon, "-net dump write error: %s\n", strerror(errno)); |
| 2115 | close(s->fd); |
| 2116 | qemu_free(s); |
| 2117 | return -1; |
| 2118 | } |
| 2119 | |
| 2120 | s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL, |
| 2121 | net_dump_cleanup, s); |
| 2122 | snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str), |
| 2123 | "dump to %s (len=%d)", filename, len); |
| 2124 | return 0; |
| 2125 | } |
| 2126 | |
| 2127 | /* find or alloc a new VLAN */ |
| 2128 | VLANState *qemu_find_vlan(int id) |
| 2129 | { |
| 2130 | VLANState **pvlan, *vlan; |
| 2131 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
| 2132 | if (vlan->id == id) |
| 2133 | return vlan; |
| 2134 | } |
| 2135 | vlan = qemu_mallocz(sizeof(VLANState)); |
| 2136 | vlan->id = id; |
| 2137 | vlan->next = NULL; |
| 2138 | pvlan = &first_vlan; |
| 2139 | while (*pvlan != NULL) |
| 2140 | pvlan = &(*pvlan)->next; |
| 2141 | *pvlan = vlan; |
| 2142 | return vlan; |
| 2143 | } |
| 2144 | |
| 2145 | static int nic_get_free_idx(void) |
| 2146 | { |
| 2147 | int index; |
| 2148 | |
| 2149 | for (index = 0; index < MAX_NICS; index++) |
| 2150 | if (!nd_table[index].used) |
| 2151 | return index; |
| 2152 | return -1; |
| 2153 | } |
| 2154 | |
| 2155 | void qemu_check_nic_model(NICInfo *nd, const char *model) |
| 2156 | { |
| 2157 | const char *models[2]; |
| 2158 | |
| 2159 | models[0] = model; |
| 2160 | models[1] = NULL; |
| 2161 | |
| 2162 | qemu_check_nic_model_list(nd, models, model); |
| 2163 | } |
| 2164 | |
| 2165 | void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, |
| 2166 | const char *default_model) |
| 2167 | { |
| 2168 | int i, exit_status = 0; |
| 2169 | |
| 2170 | if (!nd->model) |
| 2171 | nd->model = strdup(default_model); |
| 2172 | |
| 2173 | if (strcmp(nd->model, "?") != 0) { |
| 2174 | for (i = 0 ; models[i]; i++) |
| 2175 | if (strcmp(nd->model, models[i]) == 0) |
| 2176 | return; |
| 2177 | |
| 2178 | fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model); |
| 2179 | exit_status = 1; |
| 2180 | } |
| 2181 | |
| 2182 | fprintf(stderr, "qemu: Supported NIC models: "); |
| 2183 | for (i = 0 ; models[i]; i++) |
| 2184 | fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
| 2185 | |
| 2186 | exit(exit_status); |
| 2187 | } |
| 2188 | |
| 2189 | int net_client_init(Monitor *mon, const char *device, const char *p) |
| 2190 | { |
| 2191 | static const char * const fd_params[] = { |
| 2192 | "vlan", "name", "fd", NULL |
| 2193 | }; |
| 2194 | char buf[1024]; |
| 2195 | int vlan_id, ret; |
| 2196 | VLANState *vlan; |
| 2197 | char *name = NULL; |
| 2198 | |
| 2199 | vlan_id = 0; |
| 2200 | if (get_param_value(buf, sizeof(buf), "vlan", p)) { |
| 2201 | vlan_id = strtol(buf, NULL, 0); |
| 2202 | } |
| 2203 | vlan = qemu_find_vlan(vlan_id); |
| 2204 | |
| 2205 | if (get_param_value(buf, sizeof(buf), "name", p)) { |
| 2206 | name = qemu_strdup(buf); |
| 2207 | } |
| 2208 | if (!strcmp(device, "nic")) { |
| 2209 | static const char * const nic_params[] = { |
| 2210 | "vlan", "name", "macaddr", "model", NULL |
| 2211 | }; |
| 2212 | NICInfo *nd; |
| 2213 | uint8_t *macaddr; |
| 2214 | int idx = nic_get_free_idx(); |
| 2215 | |
| 2216 | if (check_params(buf, sizeof(buf), nic_params, p) < 0) { |
| 2217 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
| 2218 | ret = -1; |
| 2219 | goto out; |
| 2220 | } |
| 2221 | if (idx == -1 || nb_nics >= MAX_NICS) { |
| 2222 | config_error(mon, "Too Many NICs\n"); |
| 2223 | ret = -1; |
| 2224 | goto out; |
| 2225 | } |
| 2226 | nd = &nd_table[idx]; |
| 2227 | macaddr = nd->macaddr; |
| 2228 | macaddr[0] = 0x52; |
| 2229 | macaddr[1] = 0x54; |
| 2230 | macaddr[2] = 0x00; |
| 2231 | macaddr[3] = 0x12; |
| 2232 | macaddr[4] = 0x34; |
| 2233 | macaddr[5] = 0x56 + idx; |
| 2234 | |
| 2235 | if (get_param_value(buf, sizeof(buf), "macaddr", p)) { |
| 2236 | if (parse_macaddr(macaddr, buf) < 0) { |
| 2237 | config_error(mon, "invalid syntax for ethernet address\n"); |
| 2238 | ret = -1; |
| 2239 | goto out; |
| 2240 | } |
| 2241 | } |
| 2242 | if (get_param_value(buf, sizeof(buf), "model", p)) { |
| 2243 | nd->model = strdup(buf); |
| 2244 | } |
| 2245 | nd->vlan = vlan; |
| 2246 | nd->name = name; |
| 2247 | nd->used = 1; |
| 2248 | name = NULL; |
| 2249 | nb_nics++; |
| 2250 | vlan->nb_guest_devs++; |
| 2251 | ret = idx; |
| 2252 | } else |
| 2253 | if (!strcmp(device, "none")) { |
| 2254 | if (*p != '\0') { |
| 2255 | config_error(mon, "'none' takes no parameters\n"); |
| 2256 | ret = -1; |
| 2257 | goto out; |
| 2258 | } |
| 2259 | /* does nothing. It is needed to signal that no network cards |
| 2260 | are wanted */ |
| 2261 | ret = 0; |
| 2262 | } else |
| 2263 | #ifdef CONFIG_SLIRP |
| 2264 | if (!strcmp(device, "user")) { |
| 2265 | static const char * const slirp_params[] = { |
| 2266 | "vlan", "name", "hostname", "restrict", "ip", NULL |
| 2267 | }; |
| 2268 | int restricted = 0; |
| 2269 | char *ip = NULL; |
| 2270 | |
| 2271 | if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { |
| 2272 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
| 2273 | ret = -1; |
| 2274 | goto out; |
| 2275 | } |
| 2276 | if (get_param_value(buf, sizeof(buf), "hostname", p)) { |
| 2277 | pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf); |
| 2278 | } |
| 2279 | if (get_param_value(buf, sizeof(buf), "restrict", p)) { |
| 2280 | restricted = (buf[0] == 'y') ? 1 : 0; |
| 2281 | } |
| 2282 | if (get_param_value(buf, sizeof(buf), "ip", p)) { |
| 2283 | ip = qemu_strdup(buf); |
| 2284 | } |
| 2285 | vlan->nb_host_devs++; |
| 2286 | ret = net_slirp_init(vlan, device, name, restricted, ip); |
| 2287 | qemu_free(ip); |
| 2288 | } else if (!strcmp(device, "channel")) { |
| 2289 | long port; |
| 2290 | char name[20], *devname; |
| 2291 | struct VMChannel *vmc; |
| 2292 | |
| 2293 | port = strtol(p, &devname, 10); |
| 2294 | devname++; |
| 2295 | if (port < 1 || port > 65535) { |
| 2296 | config_error(mon, "vmchannel wrong port number\n"); |
| 2297 | ret = -1; |
| 2298 | goto out; |
| 2299 | } |
| 2300 | vmc = malloc(sizeof(struct VMChannel)); |
| 2301 | snprintf(name, 20, "vmchannel%ld", port); |
| 2302 | vmc->hd = qemu_chr_open(name, devname, NULL); |
| 2303 | if (!vmc->hd) { |
| 2304 | config_error(mon, "could not open vmchannel device '%s'\n", |
| 2305 | devname); |
| 2306 | ret = -1; |
| 2307 | goto out; |
| 2308 | } |
| 2309 | vmc->port = port; |
| 2310 | slirp_add_exec(3, vmc->hd, 4, port); |
| 2311 | qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read, |
| 2312 | NULL, vmc); |
| 2313 | ret = 0; |
| 2314 | } else |
| 2315 | #endif |
| 2316 | #ifdef _WIN32 |
| 2317 | if (!strcmp(device, "tap")) { |
| 2318 | static const char * const tap_params[] = { |
| 2319 | "vlan", "name", "ifname", NULL |
| 2320 | }; |
| 2321 | char ifname[64]; |
| 2322 | |
| 2323 | if (check_params(buf, sizeof(buf), tap_params, p) < 0) { |
| 2324 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
| 2325 | ret = -1; |
| 2326 | goto out; |
| 2327 | } |
| 2328 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
| 2329 | config_error(mon, "tap: no interface name\n"); |
| 2330 | ret = -1; |
| 2331 | goto out; |
| 2332 | } |
| 2333 | vlan->nb_host_devs++; |
| 2334 | ret = tap_win32_init(vlan, device, name, ifname); |
| 2335 | } else |
| 2336 | #elif defined (_AIX) |
| 2337 | #else |
| 2338 | if (!strcmp(device, "tap")) { |
| 2339 | char ifname[64], chkbuf[64]; |
| 2340 | char setup_script[1024], down_script[1024]; |
| 2341 | int fd; |
| 2342 | vlan->nb_host_devs++; |
| 2343 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
| 2344 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
| 2345 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2346 | ret = -1; |
| 2347 | goto out; |
| 2348 | } |
| 2349 | fd = strtol(buf, NULL, 0); |
| 2350 | fcntl(fd, F_SETFL, O_NONBLOCK); |
| 2351 | net_tap_fd_init(vlan, device, name, fd); |
| 2352 | ret = 0; |
| 2353 | } else { |
| 2354 | static const char * const tap_params[] = { |
| 2355 | "vlan", "name", "ifname", "script", "downscript", NULL |
| 2356 | }; |
| 2357 | if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { |
| 2358 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2359 | ret = -1; |
| 2360 | goto out; |
| 2361 | } |
| 2362 | if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { |
| 2363 | ifname[0] = '\0'; |
| 2364 | } |
| 2365 | if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) { |
| 2366 | pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT); |
| 2367 | } |
| 2368 | if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) { |
| 2369 | pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT); |
| 2370 | } |
| 2371 | ret = net_tap_init(vlan, device, name, ifname, setup_script, down_script); |
| 2372 | } |
| 2373 | } else |
| 2374 | #endif |
| 2375 | if (!strcmp(device, "socket")) { |
| 2376 | char chkbuf[64]; |
| 2377 | if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { |
| 2378 | int fd; |
| 2379 | if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { |
| 2380 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2381 | ret = -1; |
| 2382 | goto out; |
| 2383 | } |
| 2384 | fd = strtol(buf, NULL, 0); |
| 2385 | ret = -1; |
| 2386 | if (net_socket_fd_init(vlan, device, name, fd, 1)) |
| 2387 | ret = 0; |
| 2388 | } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) { |
| 2389 | static const char * const listen_params[] = { |
| 2390 | "vlan", "name", "listen", NULL |
| 2391 | }; |
| 2392 | if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { |
| 2393 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2394 | ret = -1; |
| 2395 | goto out; |
| 2396 | } |
| 2397 | ret = net_socket_listen_init(vlan, device, name, buf); |
| 2398 | } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { |
| 2399 | static const char * const connect_params[] = { |
| 2400 | "vlan", "name", "connect", NULL |
| 2401 | }; |
| 2402 | if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { |
| 2403 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2404 | ret = -1; |
| 2405 | goto out; |
| 2406 | } |
| 2407 | ret = net_socket_connect_init(vlan, device, name, buf); |
| 2408 | } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { |
| 2409 | static const char * const mcast_params[] = { |
| 2410 | "vlan", "name", "mcast", NULL |
| 2411 | }; |
| 2412 | if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { |
| 2413 | config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); |
| 2414 | ret = -1; |
| 2415 | goto out; |
| 2416 | } |
| 2417 | ret = net_socket_mcast_init(vlan, device, name, buf); |
| 2418 | } else { |
| 2419 | config_error(mon, "Unknown socket options: %s\n", p); |
| 2420 | ret = -1; |
| 2421 | goto out; |
| 2422 | } |
| 2423 | vlan->nb_host_devs++; |
| 2424 | } else |
| 2425 | #ifdef CONFIG_VDE |
| 2426 | if (!strcmp(device, "vde")) { |
| 2427 | static const char * const vde_params[] = { |
| 2428 | "vlan", "name", "sock", "port", "group", "mode", NULL |
| 2429 | }; |
| 2430 | char vde_sock[1024], vde_group[512]; |
| 2431 | int vde_port, vde_mode; |
| 2432 | |
| 2433 | if (check_params(buf, sizeof(buf), vde_params, p) < 0) { |
| 2434 | config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); |
| 2435 | ret = -1; |
| 2436 | goto out; |
| 2437 | } |
| 2438 | vlan->nb_host_devs++; |
| 2439 | if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { |
| 2440 | vde_sock[0] = '\0'; |
| 2441 | } |
| 2442 | if (get_param_value(buf, sizeof(buf), "port", p) > 0) { |
| 2443 | vde_port = strtol(buf, NULL, 10); |
| 2444 | } else { |
| 2445 | vde_port = 0; |
| 2446 | } |
| 2447 | if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) { |
| 2448 | vde_group[0] = '\0'; |
| 2449 | } |
| 2450 | if (get_param_value(buf, sizeof(buf), "mode", p) > 0) { |
| 2451 | vde_mode = strtol(buf, NULL, 8); |
| 2452 | } else { |
| 2453 | vde_mode = 0700; |
| 2454 | } |
| 2455 | ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode); |
| 2456 | } else |
| 2457 | #endif |
| 2458 | if (!strcmp(device, "dump")) { |
| 2459 | int len = 65536; |
| 2460 | |
| 2461 | if (get_param_value(buf, sizeof(buf), "len", p) > 0) { |
| 2462 | len = strtol(buf, NULL, 0); |
| 2463 | } |
| 2464 | if (!get_param_value(buf, sizeof(buf), "file", p)) { |
| 2465 | snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); |
| 2466 | } |
| 2467 | ret = net_dump_init(mon, vlan, device, name, buf, len); |
| 2468 | } else { |
| 2469 | config_error(mon, "Unknown network device: %s\n", device); |
| 2470 | ret = -1; |
| 2471 | goto out; |
| 2472 | } |
| 2473 | if (ret < 0) { |
| 2474 | config_error(mon, "Could not initialize device '%s'\n", device); |
| 2475 | } |
| 2476 | out: |
| 2477 | qemu_free(name); |
| 2478 | return ret; |
| 2479 | } |
| 2480 | |
| 2481 | void net_client_uninit(NICInfo *nd) |
| 2482 | { |
| 2483 | nd->vlan->nb_guest_devs--; |
| 2484 | nb_nics--; |
| 2485 | nd->used = 0; |
| 2486 | free((void *)nd->model); |
| 2487 | } |
| 2488 | |
| 2489 | static int net_host_check_device(const char *device) |
| 2490 | { |
| 2491 | int i; |
| 2492 | const char *valid_param_list[] = { "tap", "socket", "dump" |
| 2493 | #ifdef CONFIG_SLIRP |
| 2494 | ,"user" |
| 2495 | #endif |
| 2496 | #ifdef CONFIG_VDE |
| 2497 | ,"vde" |
| 2498 | #endif |
| 2499 | }; |
| 2500 | for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
| 2501 | if (!strncmp(valid_param_list[i], device, |
| 2502 | strlen(valid_param_list[i]))) |
| 2503 | return 1; |
| 2504 | } |
| 2505 | |
| 2506 | return 0; |
| 2507 | } |
| 2508 | |
| 2509 | void net_host_device_add(Monitor *mon, const char *device, const char *opts) |
| 2510 | { |
| 2511 | if (!net_host_check_device(device)) { |
| 2512 | monitor_printf(mon, "invalid host network device %s\n", device); |
| 2513 | return; |
| 2514 | } |
| 2515 | if (net_client_init(mon, device, opts ? opts : "") < 0) { |
| 2516 | monitor_printf(mon, "adding host network device %s failed\n", device); |
| 2517 | } |
| 2518 | } |
| 2519 | |
| 2520 | void net_host_device_remove(Monitor *mon, int vlan_id, const char *device) |
| 2521 | { |
| 2522 | VLANState *vlan; |
| 2523 | VLANClientState *vc; |
| 2524 | |
| 2525 | vlan = qemu_find_vlan(vlan_id); |
| 2526 | |
| 2527 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) { |
| 2528 | if (!strcmp(vc->name, device)) { |
| 2529 | break; |
| 2530 | } |
| 2531 | } |
| 2532 | |
| 2533 | if (!vc) { |
| 2534 | monitor_printf(mon, "can't find device %s\n", device); |
| 2535 | return; |
| 2536 | } |
| 2537 | if (!net_host_check_device(vc->model)) { |
| 2538 | monitor_printf(mon, "invalid host network device %s\n", device); |
| 2539 | return; |
| 2540 | } |
| 2541 | qemu_del_vlan_client(vc); |
| 2542 | } |
| 2543 | |
| 2544 | int net_client_parse(const char *str) |
| 2545 | { |
| 2546 | const char *p; |
| 2547 | char *q; |
| 2548 | char device[64]; |
| 2549 | |
| 2550 | p = str; |
| 2551 | q = device; |
| 2552 | while (*p != '\0' && *p != ',') { |
| 2553 | if ((q - device) < sizeof(device) - 1) |
| 2554 | *q++ = *p; |
| 2555 | p++; |
| 2556 | } |
| 2557 | *q = '\0'; |
| 2558 | if (*p == ',') |
| 2559 | p++; |
| 2560 | |
| 2561 | return net_client_init(NULL, device, p); |
| 2562 | } |
| 2563 | |
| 2564 | void do_info_network(Monitor *mon) |
| 2565 | { |
| 2566 | VLANState *vlan; |
| 2567 | VLANClientState *vc; |
| 2568 | |
| 2569 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
| 2570 | monitor_printf(mon, "VLAN %d devices:\n", vlan->id); |
| 2571 | for(vc = vlan->first_client; vc != NULL; vc = vc->next) |
| 2572 | monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str); |
| 2573 | } |
| 2574 | } |
| 2575 | |
| 2576 | int do_set_link(Monitor *mon, const char *name, const char *up_or_down) |
| 2577 | { |
| 2578 | VLANState *vlan; |
| 2579 | VLANClientState *vc = NULL; |
| 2580 | |
| 2581 | for (vlan = first_vlan; vlan != NULL; vlan = vlan->next) |
| 2582 | for (vc = vlan->first_client; vc != NULL; vc = vc->next) |
| 2583 | if (strcmp(vc->name, name) == 0) |
| 2584 | goto done; |
| 2585 | done: |
| 2586 | |
| 2587 | if (!vc) { |
| 2588 | monitor_printf(mon, "could not find network device '%s'", name); |
| 2589 | return 0; |
| 2590 | } |
| 2591 | |
| 2592 | if (strcmp(up_or_down, "up") == 0) |
| 2593 | vc->link_down = 0; |
| 2594 | else if (strcmp(up_or_down, "down") == 0) |
| 2595 | vc->link_down = 1; |
| 2596 | else |
| 2597 | monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' " |
| 2598 | "valid\n", up_or_down); |
| 2599 | |
| 2600 | if (vc->link_status_changed) |
| 2601 | vc->link_status_changed(vc); |
| 2602 | |
| 2603 | return 1; |
| 2604 | } |
| 2605 | |
| 2606 | void net_cleanup(void) |
| 2607 | { |
| 2608 | VLANState *vlan; |
| 2609 | |
| 2610 | /* close network clients */ |
| 2611 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
| 2612 | VLANClientState *vc = vlan->first_client; |
| 2613 | |
| 2614 | while (vc) { |
| 2615 | VLANClientState *next = vc->next; |
| 2616 | |
| 2617 | qemu_del_vlan_client(vc); |
| 2618 | |
| 2619 | vc = next; |
| 2620 | } |
| 2621 | } |
| 2622 | } |
| 2623 | |
| 2624 | void net_client_check(void) |
| 2625 | { |
| 2626 | VLANState *vlan; |
| 2627 | |
| 2628 | for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) { |
| 2629 | if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0) |
| 2630 | continue; |
| 2631 | if (vlan->nb_guest_devs == 0) |
| 2632 | fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id); |
| 2633 | if (vlan->nb_host_devs == 0) |
| 2634 | fprintf(stderr, |
| 2635 | "Warning: vlan %d is not connected to host network\n", |
| 2636 | vlan->id); |
| 2637 | } |
| 2638 | } |
Vladimir Chtchetkine | eb83825 | 2010-07-15 12:27:56 -0700 | [diff] [blame] | 2639 | |
| 2640 | int |
| 2641 | android_parse_network_speed(const char* speed) |
| 2642 | { |
| 2643 | int n; |
| 2644 | char* end; |
| 2645 | double sp; |
| 2646 | |
| 2647 | if (speed == NULL || speed[0] == 0) { |
| 2648 | speed = DEFAULT_NETSPEED; |
| 2649 | } |
| 2650 | |
| 2651 | for (n = 0; android_netspeeds[n].name != NULL; n++) { |
| 2652 | if (!strcmp(android_netspeeds[n].name, speed)) { |
| 2653 | qemu_net_download_speed = android_netspeeds[n].download; |
| 2654 | qemu_net_upload_speed = android_netspeeds[n].upload; |
| 2655 | return 0; |
| 2656 | } |
| 2657 | } |
| 2658 | |
| 2659 | /* is this a number ? */ |
| 2660 | sp = strtod(speed, &end); |
| 2661 | if (end == speed) { |
| 2662 | return -1; |
| 2663 | } |
| 2664 | |
| 2665 | qemu_net_download_speed = qemu_net_upload_speed = sp*1000.; |
| 2666 | if (*end == ':') { |
| 2667 | speed = end+1; |
| 2668 | sp = strtod(speed, &end); |
| 2669 | if (end > speed) { |
| 2670 | qemu_net_download_speed = sp*1000.; |
| 2671 | } |
| 2672 | } |
| 2673 | |
| 2674 | if (android_modem) |
| 2675 | amodem_set_data_network_type( android_modem, |
| 2676 | android_parse_network_type(speed) ); |
| 2677 | return 0; |
| 2678 | } |
| 2679 | |
| 2680 | |
| 2681 | int |
| 2682 | android_parse_network_latency(const char* delay) |
| 2683 | { |
| 2684 | int n; |
| 2685 | char* end; |
| 2686 | double sp; |
| 2687 | |
| 2688 | if (delay == NULL || delay[0] == 0) |
| 2689 | delay = DEFAULT_NETDELAY; |
| 2690 | |
| 2691 | for (n = 0; android_netdelays[n].name != NULL; n++) { |
| 2692 | if ( !strcmp( android_netdelays[n].name, delay ) ) { |
| 2693 | qemu_net_min_latency = android_netdelays[n].min_ms; |
| 2694 | qemu_net_max_latency = android_netdelays[n].max_ms; |
| 2695 | return 0; |
| 2696 | } |
| 2697 | } |
| 2698 | |
| 2699 | /* is this a number ? */ |
| 2700 | sp = strtod(delay, &end); |
| 2701 | if (end == delay) { |
| 2702 | return -1; |
| 2703 | } |
| 2704 | |
| 2705 | qemu_net_min_latency = qemu_net_max_latency = (int)sp; |
| 2706 | if (*end == ':') { |
| 2707 | delay = (const char*)end+1; |
| 2708 | sp = strtod(delay, &end); |
| 2709 | if (end > delay) { |
| 2710 | qemu_net_max_latency = (int)sp; |
| 2711 | } |
| 2712 | } |
| 2713 | return 0; |
| 2714 | } |