Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 1 | /* |
| 2 | * bearer.c TIPC bearer functionality. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Authors: Richard Alpe <richard.alpe@ericsson.com> |
| 10 | */ |
| 11 | |
| 12 | #include <stdio.h> |
| 13 | #include <stdlib.h> |
| 14 | #include <string.h> |
| 15 | #include <netdb.h> |
| 16 | #include <errno.h> |
| 17 | |
| 18 | #include <linux/tipc_netlink.h> |
| 19 | #include <linux/tipc.h> |
| 20 | #include <linux/genetlink.h> |
| 21 | |
| 22 | #include <libmnl/libmnl.h> |
| 23 | #include <sys/socket.h> |
| 24 | |
| 25 | #include "cmdl.h" |
| 26 | #include "msg.h" |
| 27 | #include "bearer.h" |
| 28 | |
| 29 | static void _print_bearer_opts(void) |
| 30 | { |
| 31 | fprintf(stderr, |
| 32 | "\nOPTIONS\n" |
| 33 | " priority - Bearer link priority\n" |
| 34 | " tolerance - Bearer link tolerance\n" |
| 35 | " window - Bearer link window\n"); |
| 36 | } |
| 37 | |
| 38 | static void _print_bearer_media(void) |
| 39 | { |
| 40 | fprintf(stderr, |
| 41 | "\nMEDIA\n" |
| 42 | " udp - User Datagram Protocol\n" |
| 43 | " ib - Infiniband\n" |
| 44 | " eth - Ethernet\n"); |
| 45 | } |
| 46 | |
| 47 | static void cmd_bearer_enable_l2_help(struct cmdl *cmdl) |
| 48 | { |
| 49 | fprintf(stderr, |
| 50 | "Usage: %s bearer enable media MEDIA device DEVICE [OPTIONS]\n" |
| 51 | "\nOPTIONS\n" |
| 52 | " domain DOMAIN - Discovery domain\n" |
| 53 | " priority PRIORITY - Bearer priority\n", |
| 54 | cmdl->argv[0]); |
| 55 | } |
| 56 | |
| 57 | static void cmd_bearer_enable_udp_help(struct cmdl *cmdl) |
| 58 | { |
| 59 | fprintf(stderr, |
| 60 | "Usage: %s bearer enable media udp name NAME localip IP [OPTIONS]\n" |
| 61 | "\nOPTIONS\n" |
| 62 | " domain DOMAIN - Discovery domain\n" |
| 63 | " priority PRIORITY - Bearer priority\n" |
| 64 | " localport PORT - Local UDP port (default 6118)\n" |
| 65 | " remoteip IP - Remote IP address\n" |
| 66 | " remoteport IP - Remote UDP port (default 6118)\n", |
| 67 | cmdl->argv[0]); |
| 68 | } |
| 69 | |
| 70 | static int enable_l2_bearer(struct nlmsghdr *nlh, struct opt *opts, |
| 71 | struct cmdl *cmdl) |
| 72 | { |
| 73 | struct opt *opt; |
| 74 | char id[TIPC_MAX_BEARER_NAME]; |
| 75 | |
| 76 | if (!(opt = get_opt(opts, "device"))) { |
| 77 | fprintf(stderr, "error: missing bearer device\n"); |
| 78 | return -EINVAL; |
| 79 | } |
| 80 | snprintf(id, sizeof(id), "eth:%s", opt->val); |
| 81 | mnl_attr_put_strz(nlh, TIPC_NLA_BEARER_NAME, id); |
| 82 | |
| 83 | return 0; |
| 84 | } |
| 85 | |
| 86 | static int get_netid_cb(const struct nlmsghdr *nlh, void *data) |
| 87 | { |
| 88 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 89 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 90 | struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {}; |
| 91 | int *netid = (int*)data; |
| 92 | |
| 93 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 94 | if (!info[TIPC_NLA_NET]) |
| 95 | return MNL_CB_ERROR; |
| 96 | mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs); |
| 97 | if (!attrs[TIPC_NLA_NET_ID]) |
| 98 | return MNL_CB_ERROR; |
| 99 | *netid = mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID]); |
| 100 | |
| 101 | return MNL_CB_OK; |
| 102 | } |
| 103 | |
| 104 | static int generate_multicast(short af, char *buf, int bufsize) |
| 105 | { |
| 106 | int netid; |
| 107 | char mnl_msg[MNL_SOCKET_BUFFER_SIZE]; |
| 108 | struct nlmsghdr *nlh; |
| 109 | |
| 110 | if (!(nlh = msg_init(mnl_msg, TIPC_NL_NET_GET))) { |
| 111 | fprintf(stderr, "error, message initialization failed\n"); |
| 112 | return -1; |
| 113 | } |
| 114 | if (msg_dumpit(nlh, get_netid_cb, &netid)) { |
| 115 | fprintf(stderr, "error, failed to fetch TIPC network id from kernel\n"); |
| 116 | return -EINVAL; |
| 117 | } |
| 118 | if (af == AF_INET) |
| 119 | snprintf(buf, bufsize, "228.0.%u.%u", (netid>>8) & 0xFF, netid & 0xFF); |
| 120 | else |
| 121 | snprintf(buf, bufsize, "ff02::%u", netid); |
| 122 | |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | static int enable_udp_bearer(struct nlmsghdr *nlh, struct opt *opts, |
| 127 | struct cmdl *cmdl) |
| 128 | { |
| 129 | int err; |
| 130 | struct opt *opt; |
| 131 | struct nlattr *nest; |
| 132 | char buf[INET6_ADDRSTRLEN]; |
| 133 | char *locport = "6118"; |
| 134 | char *remport = "6118"; |
| 135 | char *locip = NULL; |
| 136 | char *remip = NULL; |
| 137 | char name[TIPC_MAX_BEARER_NAME]; |
| 138 | struct addrinfo *loc = NULL; |
| 139 | struct addrinfo *rem = NULL; |
| 140 | struct addrinfo hints = { |
| 141 | .ai_family = AF_UNSPEC, |
| 142 | .ai_socktype = SOCK_DGRAM |
| 143 | }; |
| 144 | |
| 145 | if (help_flag) { |
| 146 | cmd_bearer_enable_udp_help(cmdl); |
| 147 | /* TODO find a better error code? */ |
| 148 | return -EINVAL; |
| 149 | } |
| 150 | |
| 151 | if (!(opt = get_opt(opts, "name"))) { |
| 152 | fprintf(stderr, "error, udp bearer name missing\n"); |
| 153 | cmd_bearer_enable_udp_help(cmdl); |
| 154 | return -EINVAL; |
| 155 | } |
| 156 | snprintf(name, sizeof(name), "udp:%s", opt->val); |
| 157 | |
| 158 | if (!(opt = get_opt(opts, "localip"))) { |
| 159 | fprintf(stderr, "error, udp bearer localip missing\n"); |
| 160 | cmd_bearer_enable_udp_help(cmdl); |
| 161 | return -EINVAL; |
| 162 | } |
| 163 | locip = opt->val; |
| 164 | |
| 165 | if ((opt = get_opt(opts, "remoteip"))) |
| 166 | remip = opt->val; |
| 167 | |
| 168 | if ((opt = get_opt(opts, "localport"))) |
| 169 | locport = opt->val; |
| 170 | |
| 171 | if ((opt = get_opt(opts, "remoteport"))) |
| 172 | remport = opt->val; |
| 173 | |
| 174 | if ((err = getaddrinfo(locip, locport, &hints, &loc))) { |
| 175 | fprintf(stderr, "UDP local address error: %s\n", |
| 176 | gai_strerror(err)); |
| 177 | return err; |
| 178 | } |
| 179 | |
| 180 | if (!remip) { |
| 181 | if (generate_multicast(loc->ai_family, buf, sizeof(buf))) { |
| 182 | fprintf(stderr, "Failed to generate multicast address\n"); |
| 183 | return -EINVAL; |
| 184 | } |
| 185 | remip = buf; |
| 186 | } |
| 187 | |
| 188 | if ((err = getaddrinfo(remip, remport, &hints, &rem))) { |
| 189 | fprintf(stderr, "UDP remote address error: %s\n", |
| 190 | gai_strerror(err)); |
| 191 | freeaddrinfo(loc); |
| 192 | return err; |
| 193 | } |
| 194 | |
| 195 | if (rem->ai_family != loc->ai_family) { |
| 196 | fprintf(stderr, "UDP local and remote AF mismatch\n"); |
| 197 | return -EINVAL; |
| 198 | } |
| 199 | |
| 200 | mnl_attr_put_strz(nlh, TIPC_NLA_BEARER_NAME, name); |
| 201 | |
| 202 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_UDP_OPTS); |
| 203 | mnl_attr_put(nlh, TIPC_NLA_UDP_LOCAL, loc->ai_addrlen, loc->ai_addr); |
| 204 | mnl_attr_put(nlh, TIPC_NLA_UDP_REMOTE, rem->ai_addrlen, rem->ai_addr); |
| 205 | mnl_attr_nest_end(nlh, nest); |
| 206 | |
| 207 | freeaddrinfo(rem); |
| 208 | freeaddrinfo(loc); |
| 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static void cmd_bearer_enable_help(struct cmdl *cmdl) |
| 214 | { |
| 215 | fprintf(stderr, |
| 216 | "Usage: %s bearer enable [OPTIONS] media MEDIA ARGS...\n\n" |
| 217 | "OPTIONS\n" |
| 218 | " domain DOMAIN - Discovery domain\n" |
| 219 | " priority PRIORITY - Bearer priority\n", |
| 220 | cmdl->argv[0]); |
| 221 | _print_bearer_media(); |
| 222 | } |
| 223 | |
| 224 | static int cmd_bearer_enable(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 225 | struct cmdl *cmdl, void *data) |
| 226 | { |
| 227 | int err; |
| 228 | struct opt *opt; |
| 229 | struct nlattr *nest; |
| 230 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 231 | char *media; |
| 232 | struct opt opts[] = { |
| 233 | { "device", NULL }, |
| 234 | { "domain", NULL }, |
| 235 | { "localip", NULL }, |
| 236 | { "localport", NULL }, |
| 237 | { "media", NULL }, |
| 238 | { "name", NULL }, |
| 239 | { "priority", NULL }, |
| 240 | { "remoteip", NULL }, |
| 241 | { "remoteport", NULL }, |
| 242 | { NULL } |
| 243 | }; |
| 244 | |
| 245 | if (parse_opts(opts, cmdl) < 0) { |
| 246 | if (help_flag) |
| 247 | (cmd->help)(cmdl); |
| 248 | return -EINVAL; |
| 249 | } |
| 250 | |
| 251 | if (!(opt = get_opt(opts, "media"))) { |
| 252 | if (help_flag) |
| 253 | (cmd->help)(cmdl); |
| 254 | else |
| 255 | fprintf(stderr, "error, missing bearer media\n"); |
| 256 | return -EINVAL; |
| 257 | } |
| 258 | media = opt->val; |
| 259 | |
| 260 | if (!(nlh = msg_init(buf, TIPC_NL_BEARER_ENABLE))) { |
| 261 | fprintf(stderr, "error: message initialisation failed\n"); |
| 262 | return -1; |
| 263 | } |
| 264 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER); |
| 265 | |
| 266 | if ((opt = get_opt(opts, "domain"))) |
| 267 | mnl_attr_put_u32(nlh, TIPC_NLA_BEARER_DOMAIN, atoi(opt->val)); |
| 268 | |
| 269 | if ((opt = get_opt(opts, "priority"))) { |
| 270 | struct nlattr *props; |
| 271 | |
| 272 | props = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_PROP); |
| 273 | mnl_attr_put_u32(nlh, TIPC_NLA_PROP_PRIO, atoi(opt->val)); |
| 274 | mnl_attr_nest_end(nlh, props); |
| 275 | } |
| 276 | |
| 277 | if (strcmp(media, "udp") == 0) { |
| 278 | if (help_flag) { |
| 279 | cmd_bearer_enable_udp_help(cmdl); |
| 280 | return -EINVAL; |
| 281 | } |
| 282 | if ((err = enable_udp_bearer(nlh, opts, cmdl))) |
| 283 | return err; |
| 284 | } else if ((strcmp(media, "eth") == 0) || (strcmp(media, "udp") == 0)) { |
| 285 | if (help_flag) { |
| 286 | cmd_bearer_enable_l2_help(cmdl); |
| 287 | return -EINVAL; |
| 288 | } |
| 289 | if ((err = enable_l2_bearer(nlh, opts, cmdl))) |
| 290 | return err; |
| 291 | } else { |
| 292 | fprintf(stderr, "error, invalid media type \"%s\"\n", media); |
| 293 | return -EINVAL; |
| 294 | } |
| 295 | |
| 296 | mnl_attr_nest_end(nlh, nest); |
| 297 | |
| 298 | return msg_doit(nlh, NULL, NULL); |
| 299 | } |
| 300 | |
| 301 | static int add_l2_bearer(struct nlmsghdr *nlh, struct opt *opts) |
| 302 | { |
| 303 | struct opt *opt; |
| 304 | char id[TIPC_MAX_BEARER_NAME]; |
| 305 | |
| 306 | if (!(opt = get_opt(opts, "device"))) { |
| 307 | fprintf(stderr, "error: missing bearer device\n"); |
| 308 | return -EINVAL; |
| 309 | } |
| 310 | snprintf(id, sizeof(id), "eth:%s", opt->val); |
| 311 | |
| 312 | mnl_attr_put_strz(nlh, TIPC_NLA_BEARER_NAME, id); |
| 313 | |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | static int add_udp_bearer(struct nlmsghdr *nlh, struct opt *opts) |
| 318 | { |
| 319 | struct opt *opt; |
| 320 | char id[TIPC_MAX_BEARER_NAME]; |
| 321 | |
| 322 | if (!(opt = get_opt(opts, "name"))) { |
| 323 | fprintf(stderr, "error: missing bearer name\n"); |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | snprintf(id, sizeof(id), "udp:%s", opt->val); |
| 327 | |
| 328 | mnl_attr_put_strz(nlh, TIPC_NLA_BEARER_NAME, id); |
| 329 | |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | static void cmd_bearer_disable_l2_help(struct cmdl *cmdl) |
| 334 | { |
| 335 | fprintf(stderr, "Usage: %s bearer disable media udp device DEVICE\n", |
| 336 | cmdl->argv[0]); |
| 337 | } |
| 338 | |
| 339 | static void cmd_bearer_disable_udp_help(struct cmdl *cmdl) |
| 340 | { |
| 341 | fprintf(stderr, "Usage: %s bearer disable media udp name NAME\n", |
| 342 | cmdl->argv[0]); |
| 343 | } |
| 344 | |
| 345 | static void cmd_bearer_disable_help(struct cmdl *cmdl) |
| 346 | { |
| 347 | fprintf(stderr, "Usage: %s bearer disable media MEDIA ARGS...\n", |
| 348 | cmdl->argv[0]); |
| 349 | _print_bearer_media(); |
| 350 | } |
| 351 | |
| 352 | static int cmd_bearer_disable(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 353 | struct cmdl *cmdl, void *data) |
| 354 | { |
| 355 | int err; |
| 356 | char *media; |
| 357 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 358 | struct nlattr *nest; |
| 359 | struct opt *opt; |
| 360 | struct opt opts[] = { |
| 361 | { "device", NULL }, |
| 362 | { "name", NULL }, |
| 363 | { "media", NULL }, |
| 364 | { NULL } |
| 365 | }; |
| 366 | |
| 367 | if (parse_opts(opts, cmdl) < 0) { |
| 368 | if (help_flag) |
| 369 | (cmd->help)(cmdl); |
| 370 | return -EINVAL; |
| 371 | } |
| 372 | |
| 373 | if (!(opt = get_opt(opts, "media"))) { |
| 374 | if (help_flag) |
| 375 | (cmd->help)(cmdl); |
| 376 | else |
| 377 | fprintf(stderr, "error, missing bearer media\n"); |
| 378 | return -EINVAL; |
| 379 | } |
| 380 | media = opt->val; |
| 381 | |
| 382 | if (!(nlh = msg_init(buf, TIPC_NL_BEARER_DISABLE))) { |
| 383 | fprintf(stderr, "error, message initialisation failed\n"); |
| 384 | return -1; |
| 385 | } |
| 386 | |
| 387 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER); |
| 388 | |
| 389 | if (strcmp(media, "udp") == 0) { |
| 390 | if (help_flag) { |
| 391 | cmd_bearer_disable_udp_help(cmdl); |
| 392 | return -EINVAL; |
| 393 | } |
| 394 | if ((err = add_udp_bearer(nlh, opts))) |
| 395 | return err; |
| 396 | } else if ((strcmp(media, "eth") == 0) || (strcmp(media, "udp") == 0)) { |
| 397 | if (help_flag) { |
| 398 | cmd_bearer_disable_l2_help(cmdl); |
| 399 | return -EINVAL; |
| 400 | } |
| 401 | if ((err = add_l2_bearer(nlh, opts))) |
| 402 | return err; |
| 403 | } else { |
| 404 | fprintf(stderr, "error, invalid media type \"%s\"\n", media); |
| 405 | return -EINVAL; |
| 406 | } |
| 407 | mnl_attr_nest_end(nlh, nest); |
| 408 | |
| 409 | return msg_doit(nlh, NULL, NULL); |
| 410 | |
| 411 | } |
| 412 | |
| 413 | static void cmd_bearer_set_help(struct cmdl *cmdl) |
| 414 | { |
Richard Alpe | ee262ed | 2015-08-07 09:55:09 +0200 | [diff] [blame] | 415 | fprintf(stderr, "Usage: %s bearer set OPTION media MEDIA ARGS...\n", |
Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 416 | cmdl->argv[0]); |
| 417 | _print_bearer_opts(); |
| 418 | _print_bearer_media(); |
| 419 | } |
| 420 | |
| 421 | static void cmd_bearer_set_udp_help(struct cmdl *cmdl) |
| 422 | { |
Richard Alpe | ee262ed | 2015-08-07 09:55:09 +0200 | [diff] [blame] | 423 | fprintf(stderr, "Usage: %s bearer set OPTION media udp name NAME\n\n", |
Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 424 | cmdl->argv[0]); |
| 425 | _print_bearer_opts(); |
| 426 | } |
| 427 | |
| 428 | static void cmd_bearer_set_l2_help(struct cmdl *cmdl, char *media) |
| 429 | { |
| 430 | fprintf(stderr, |
| 431 | "Usage: %s bearer set [OPTION]... media %s device DEVICE\n", |
| 432 | cmdl->argv[0], media); |
| 433 | _print_bearer_opts(); |
| 434 | } |
| 435 | |
| 436 | static int cmd_bearer_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 437 | struct cmdl *cmdl, void *data) |
| 438 | { |
| 439 | int err; |
| 440 | int val; |
| 441 | int prop; |
| 442 | char *media; |
| 443 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 444 | struct nlattr *props; |
| 445 | struct nlattr *attrs; |
| 446 | struct opt *opt; |
| 447 | struct opt opts[] = { |
| 448 | { "device", NULL }, |
| 449 | { "media", NULL }, |
| 450 | { "name", NULL }, |
| 451 | { NULL } |
| 452 | }; |
| 453 | |
| 454 | if (strcmp(cmd->cmd, "priority") == 0) |
| 455 | prop = TIPC_NLA_PROP_PRIO; |
| 456 | else if ((strcmp(cmd->cmd, "tolerance") == 0)) |
| 457 | prop = TIPC_NLA_PROP_TOL; |
| 458 | else if ((strcmp(cmd->cmd, "window") == 0)) |
| 459 | prop = TIPC_NLA_PROP_WIN; |
| 460 | else |
| 461 | return -EINVAL; |
| 462 | |
| 463 | if (help_flag) { |
| 464 | (cmd->help)(cmdl); |
| 465 | return -EINVAL; |
| 466 | } |
| 467 | |
| 468 | if (cmdl->optind >= cmdl->argc) { |
| 469 | fprintf(stderr, "error, missing value\n"); |
| 470 | return -EINVAL; |
| 471 | } |
| 472 | val = atoi(shift_cmdl(cmdl)); |
| 473 | |
| 474 | if (parse_opts(opts, cmdl) < 0) |
| 475 | return -EINVAL; |
| 476 | |
| 477 | if (!(nlh = msg_init(buf, TIPC_NL_BEARER_SET))) { |
| 478 | fprintf(stderr, "error, message initialisation failed\n"); |
| 479 | return -1; |
| 480 | } |
| 481 | attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER); |
| 482 | |
| 483 | props = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER_PROP); |
| 484 | mnl_attr_put_u32(nlh, prop, val); |
| 485 | mnl_attr_nest_end(nlh, props); |
| 486 | |
| 487 | if (!(opt = get_opt(opts, "media"))) { |
| 488 | fprintf(stderr, "error, missing media\n"); |
| 489 | return -EINVAL; |
| 490 | } |
| 491 | media = opt->val; |
| 492 | |
| 493 | if (strcmp(media, "udp") == 0) { |
| 494 | if (help_flag) { |
| 495 | cmd_bearer_set_udp_help(cmdl); |
| 496 | return -EINVAL; |
| 497 | } |
| 498 | if ((err = add_udp_bearer(nlh, opts))) |
| 499 | return err; |
| 500 | } else if ((strcmp(media, "eth") == 0) || (strcmp(media, "udp") == 0)) { |
| 501 | if (help_flag) { |
| 502 | cmd_bearer_set_l2_help(cmdl, media); |
| 503 | return -EINVAL; |
| 504 | } |
| 505 | if ((err = add_l2_bearer(nlh, opts))) |
| 506 | return err; |
| 507 | } else { |
| 508 | fprintf(stderr, "error, invalid media type \"%s\"\n", media); |
| 509 | return -EINVAL; |
| 510 | } |
| 511 | mnl_attr_nest_end(nlh, attrs); |
| 512 | |
| 513 | return msg_doit(nlh, NULL, NULL); |
| 514 | } |
| 515 | |
| 516 | static int cmd_bearer_set(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 517 | struct cmdl *cmdl, void *data) |
| 518 | { |
| 519 | const struct cmd cmds[] = { |
| 520 | { "priority", cmd_bearer_set_prop, cmd_bearer_set_help }, |
| 521 | { "tolerance", cmd_bearer_set_prop, cmd_bearer_set_help }, |
| 522 | { "window", cmd_bearer_set_prop, cmd_bearer_set_help }, |
| 523 | { NULL } |
| 524 | }; |
| 525 | |
| 526 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 527 | } |
| 528 | |
| 529 | static void cmd_bearer_get_help(struct cmdl *cmdl) |
| 530 | { |
Richard Alpe | ee262ed | 2015-08-07 09:55:09 +0200 | [diff] [blame] | 531 | fprintf(stderr, "Usage: %s bearer get OPTION media MEDIA ARGS...\n", |
Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 532 | cmdl->argv[0]); |
| 533 | _print_bearer_opts(); |
| 534 | _print_bearer_media(); |
| 535 | } |
| 536 | |
| 537 | static void cmd_bearer_get_udp_help(struct cmdl *cmdl) |
| 538 | { |
Richard Alpe | ee262ed | 2015-08-07 09:55:09 +0200 | [diff] [blame] | 539 | fprintf(stderr, "Usage: %s bearer get OPTION media udp name NAME\n\n", |
Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 540 | cmdl->argv[0]); |
| 541 | _print_bearer_opts(); |
| 542 | } |
| 543 | |
| 544 | static void cmd_bearer_get_l2_help(struct cmdl *cmdl, char *media) |
| 545 | { |
| 546 | fprintf(stderr, |
| 547 | "Usage: %s bearer get [OPTION]... media %s device DEVICE\n", |
| 548 | cmdl->argv[0], media); |
| 549 | _print_bearer_opts(); |
| 550 | } |
| 551 | |
| 552 | static int bearer_get_cb(const struct nlmsghdr *nlh, void *data) |
| 553 | { |
| 554 | int *prop = data; |
| 555 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 556 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 557 | struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1] = {}; |
| 558 | struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {}; |
| 559 | |
| 560 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 561 | if (!info[TIPC_NLA_BEARER]) |
| 562 | return MNL_CB_ERROR; |
| 563 | |
| 564 | mnl_attr_parse_nested(info[TIPC_NLA_BEARER], parse_attrs, attrs); |
| 565 | if (!attrs[TIPC_NLA_BEARER_PROP]) |
| 566 | return MNL_CB_ERROR; |
| 567 | |
| 568 | mnl_attr_parse_nested(attrs[TIPC_NLA_BEARER_PROP], parse_attrs, props); |
| 569 | if (!props[*prop]) |
| 570 | return MNL_CB_ERROR; |
| 571 | |
| 572 | printf("%u\n", mnl_attr_get_u32(props[*prop])); |
| 573 | |
| 574 | return MNL_CB_OK; |
| 575 | } |
| 576 | |
| 577 | static int cmd_bearer_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 578 | struct cmdl *cmdl, void *data) |
| 579 | { |
| 580 | int err; |
| 581 | int prop; |
| 582 | char *media; |
| 583 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 584 | struct nlattr *attrs; |
| 585 | struct opt *opt; |
| 586 | struct opt opts[] = { |
| 587 | { "device", NULL }, |
| 588 | { "media", NULL }, |
| 589 | { "name", NULL }, |
| 590 | { NULL } |
| 591 | }; |
| 592 | |
| 593 | if (strcmp(cmd->cmd, "priority") == 0) |
| 594 | prop = TIPC_NLA_PROP_PRIO; |
| 595 | else if ((strcmp(cmd->cmd, "tolerance") == 0)) |
| 596 | prop = TIPC_NLA_PROP_TOL; |
| 597 | else if ((strcmp(cmd->cmd, "window") == 0)) |
| 598 | prop = TIPC_NLA_PROP_WIN; |
| 599 | else |
| 600 | return -EINVAL; |
| 601 | |
| 602 | if (help_flag) { |
| 603 | (cmd->help)(cmdl); |
| 604 | return -EINVAL; |
| 605 | } |
| 606 | |
| 607 | if (parse_opts(opts, cmdl) < 0) |
| 608 | return -EINVAL; |
| 609 | |
| 610 | if (!(nlh = msg_init(buf, TIPC_NL_BEARER_GET))) { |
| 611 | fprintf(stderr, "error, message initialisation failed\n"); |
| 612 | return -1; |
| 613 | } |
| 614 | |
| 615 | if (!(opt = get_opt(opts, "media"))) { |
| 616 | fprintf(stderr, "error, missing media\n"); |
| 617 | return -EINVAL; |
| 618 | } |
| 619 | media = opt->val; |
| 620 | |
| 621 | attrs = mnl_attr_nest_start(nlh, TIPC_NLA_BEARER); |
| 622 | if (strcmp(media, "udp") == 0) { |
| 623 | if (help_flag) { |
| 624 | cmd_bearer_get_udp_help(cmdl); |
| 625 | return -EINVAL; |
| 626 | } |
| 627 | if ((err = add_udp_bearer(nlh, opts))) |
| 628 | return err; |
| 629 | } else if ((strcmp(media, "eth") == 0) || (strcmp(media, "udp") == 0)) { |
| 630 | if (help_flag) { |
| 631 | cmd_bearer_get_l2_help(cmdl, media); |
| 632 | return -EINVAL; |
| 633 | } |
| 634 | if ((err = add_l2_bearer(nlh, opts))) |
| 635 | return err; |
| 636 | } else { |
| 637 | fprintf(stderr, "error, invalid media type \"%s\"\n", media); |
| 638 | return -EINVAL; |
| 639 | } |
| 640 | mnl_attr_nest_end(nlh, attrs); |
| 641 | |
| 642 | return msg_doit(nlh, bearer_get_cb, &prop); |
| 643 | } |
| 644 | |
| 645 | static int cmd_bearer_get(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 646 | struct cmdl *cmdl, void *data) |
| 647 | { |
| 648 | const struct cmd cmds[] = { |
| 649 | { "priority", cmd_bearer_get_prop, cmd_bearer_get_help }, |
| 650 | { "tolerance", cmd_bearer_get_prop, cmd_bearer_get_help }, |
| 651 | { "window", cmd_bearer_get_prop, cmd_bearer_get_help }, |
| 652 | { NULL } |
| 653 | }; |
| 654 | |
| 655 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 656 | } |
| 657 | |
| 658 | static int bearer_list_cb(const struct nlmsghdr *nlh, void *data) |
| 659 | { |
| 660 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 661 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 662 | struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1] = {}; |
| 663 | |
| 664 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 665 | if (!info[TIPC_NLA_BEARER]) { |
| 666 | fprintf(stderr, "No bearer in netlink response\n"); |
| 667 | return MNL_CB_ERROR; |
| 668 | } |
| 669 | |
| 670 | mnl_attr_parse_nested(info[TIPC_NLA_BEARER], parse_attrs, attrs); |
| 671 | if (!attrs[TIPC_NLA_BEARER_NAME]) { |
| 672 | fprintf(stderr, "Bearer name missing in netlink response\n"); |
| 673 | return MNL_CB_ERROR; |
| 674 | } |
| 675 | |
| 676 | printf("%s\n", mnl_attr_get_str(attrs[TIPC_NLA_BEARER_NAME])); |
| 677 | |
| 678 | return MNL_CB_OK; |
| 679 | } |
| 680 | |
| 681 | static int cmd_bearer_list(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 682 | struct cmdl *cmdl, void *data) |
| 683 | { |
| 684 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 685 | |
| 686 | if (help_flag) { |
| 687 | fprintf(stderr, "Usage: %s bearer list\n", cmdl->argv[0]); |
| 688 | return -EINVAL; |
| 689 | } |
| 690 | |
| 691 | if (!(nlh = msg_init(buf, TIPC_NL_BEARER_GET))) { |
| 692 | fprintf(stderr, "error, message initialisation failed\n"); |
| 693 | return -1; |
| 694 | } |
| 695 | |
| 696 | return msg_dumpit(nlh, bearer_list_cb, NULL); |
| 697 | } |
| 698 | |
| 699 | void cmd_bearer_help(struct cmdl *cmdl) |
| 700 | { |
| 701 | fprintf(stderr, |
| 702 | "Usage: %s bearer COMMAND [ARGS] ...\n" |
| 703 | "\n" |
| 704 | "COMMANDS\n" |
| 705 | " enable - Enable a bearer\n" |
| 706 | " disable - Disable a bearer\n" |
| 707 | " set - Set various bearer properties\n" |
| 708 | " get - Get various bearer properties\n" |
| 709 | " list - List bearers\n", cmdl->argv[0]); |
| 710 | } |
| 711 | |
| 712 | int cmd_bearer(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl, |
| 713 | void *data) |
| 714 | { |
| 715 | const struct cmd cmds[] = { |
| 716 | { "disable", cmd_bearer_disable, cmd_bearer_disable_help }, |
| 717 | { "enable", cmd_bearer_enable, cmd_bearer_enable_help }, |
| 718 | { "get", cmd_bearer_get, cmd_bearer_get_help }, |
| 719 | { "list", cmd_bearer_list, NULL }, |
| 720 | { "set", cmd_bearer_set, cmd_bearer_set_help }, |
| 721 | { NULL } |
| 722 | }; |
| 723 | |
| 724 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 725 | } |