Richard Alpe | f043759 | 2015-05-07 15:07:36 +0200 | [diff] [blame] | 1 | /* |
| 2 | * link.c TIPC link 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 <errno.h> |
| 16 | |
| 17 | #include <linux/tipc_netlink.h> |
| 18 | #include <linux/tipc.h> |
| 19 | #include <linux/genetlink.h> |
| 20 | #include <libmnl/libmnl.h> |
| 21 | |
| 22 | #include "cmdl.h" |
| 23 | #include "msg.h" |
| 24 | #include "link.h" |
| 25 | |
| 26 | static int link_list_cb(const struct nlmsghdr *nlh, void *data) |
| 27 | { |
| 28 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 29 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 30 | struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {}; |
| 31 | |
| 32 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 33 | if (!info[TIPC_NLA_LINK]) |
| 34 | return MNL_CB_ERROR; |
| 35 | |
| 36 | mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs); |
| 37 | if (!attrs[TIPC_NLA_LINK_NAME]) |
| 38 | return MNL_CB_ERROR; |
| 39 | |
| 40 | printf("%s: ", mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME])); |
| 41 | |
| 42 | if (attrs[TIPC_NLA_LINK_UP]) |
| 43 | printf("up\n"); |
| 44 | else |
| 45 | printf("down\n"); |
| 46 | |
| 47 | return MNL_CB_OK; |
| 48 | } |
| 49 | |
| 50 | static int cmd_link_list(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 51 | struct cmdl *cmdl, void *data) |
| 52 | { |
| 53 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 54 | |
| 55 | if (help_flag) { |
| 56 | fprintf(stderr, "Usage: %s link list\n", cmdl->argv[0]); |
| 57 | return -EINVAL; |
| 58 | } |
| 59 | |
| 60 | if (!(nlh = msg_init(buf, TIPC_NL_LINK_GET))) { |
| 61 | fprintf(stderr, "error, message initialisation failed\n"); |
| 62 | return -1; |
| 63 | } |
| 64 | |
| 65 | return msg_dumpit(nlh, link_list_cb, NULL); |
| 66 | } |
| 67 | |
| 68 | static int link_get_cb(const struct nlmsghdr *nlh, void *data) |
| 69 | { |
| 70 | int *prop = data; |
| 71 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 72 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 73 | struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {}; |
| 74 | struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {}; |
| 75 | |
| 76 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 77 | if (!info[TIPC_NLA_LINK]) |
| 78 | return MNL_CB_ERROR; |
| 79 | |
| 80 | mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs); |
| 81 | if (!attrs[TIPC_NLA_LINK_PROP]) |
| 82 | return MNL_CB_ERROR; |
| 83 | |
| 84 | mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, props); |
| 85 | if (!props[*prop]) |
| 86 | return MNL_CB_ERROR; |
| 87 | |
| 88 | printf("%u\n", mnl_attr_get_u32(props[*prop])); |
| 89 | |
| 90 | return MNL_CB_OK; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | static int cmd_link_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 95 | struct cmdl *cmdl, void *data) |
| 96 | { |
| 97 | int prop; |
| 98 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 99 | struct opt *opt; |
| 100 | struct opt opts[] = { |
| 101 | { "link", NULL }, |
| 102 | { NULL } |
| 103 | }; |
| 104 | |
| 105 | if (strcmp(cmd->cmd, "priority") == 0) |
| 106 | prop = TIPC_NLA_PROP_PRIO; |
| 107 | else if ((strcmp(cmd->cmd, "tolerance") == 0)) |
| 108 | prop = TIPC_NLA_PROP_TOL; |
| 109 | else if ((strcmp(cmd->cmd, "window") == 0)) |
| 110 | prop = TIPC_NLA_PROP_WIN; |
| 111 | else |
| 112 | return -EINVAL; |
| 113 | |
| 114 | if (help_flag) { |
| 115 | (cmd->help)(cmdl); |
| 116 | return -EINVAL; |
| 117 | } |
| 118 | |
| 119 | if (parse_opts(opts, cmdl) < 0) |
| 120 | return -EINVAL; |
| 121 | |
| 122 | if (!(nlh = msg_init(buf, TIPC_NL_LINK_GET))) { |
| 123 | fprintf(stderr, "error, message initialisation failed\n"); |
| 124 | return -1; |
| 125 | } |
| 126 | |
| 127 | if (!(opt = get_opt(opts, "link"))) { |
| 128 | fprintf(stderr, "error, missing link\n"); |
| 129 | return -EINVAL; |
| 130 | } |
| 131 | mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, opt->val); |
| 132 | |
| 133 | return msg_doit(nlh, link_get_cb, &prop); |
| 134 | } |
| 135 | |
| 136 | static void cmd_link_get_help(struct cmdl *cmdl) |
| 137 | { |
| 138 | fprintf(stderr, "Usage: %s link get PPROPERTY link LINK\n\n" |
| 139 | "PROPERTIES\n" |
| 140 | " tolerance - Get link tolerance\n" |
| 141 | " priority - Get link priority\n" |
| 142 | " window - Get link window\n", |
| 143 | cmdl->argv[0]); |
| 144 | } |
| 145 | |
| 146 | static int cmd_link_get(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 147 | struct cmdl *cmdl, void *data) |
| 148 | { |
| 149 | const struct cmd cmds[] = { |
| 150 | { "priority", cmd_link_get_prop, cmd_link_get_help }, |
| 151 | { "tolerance", cmd_link_get_prop, cmd_link_get_help }, |
| 152 | { "window", cmd_link_get_prop, cmd_link_get_help }, |
| 153 | { NULL } |
| 154 | }; |
| 155 | |
| 156 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 157 | } |
| 158 | |
| 159 | static void cmd_link_stat_reset_help(struct cmdl *cmdl) |
| 160 | { |
| 161 | fprintf(stderr, "Usage: %s link stat reset link LINK\n\n", cmdl->argv[0]); |
| 162 | } |
| 163 | |
| 164 | static int cmd_link_stat_reset(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 165 | struct cmdl *cmdl, void *data) |
| 166 | { |
| 167 | char *link; |
| 168 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 169 | struct opt *opt; |
| 170 | struct nlattr *nest; |
| 171 | struct opt opts[] = { |
| 172 | { "link", NULL }, |
| 173 | { NULL } |
| 174 | }; |
| 175 | |
| 176 | if (help_flag) { |
| 177 | (cmd->help)(cmdl); |
| 178 | return -EINVAL; |
| 179 | } |
| 180 | |
| 181 | if (parse_opts(opts, cmdl) != 1) { |
| 182 | (cmd->help)(cmdl); |
| 183 | return -EINVAL; |
| 184 | } |
| 185 | |
| 186 | if (!(nlh = msg_init(buf, TIPC_NL_LINK_RESET_STATS))) { |
| 187 | fprintf(stderr, "error, message initialisation failed\n"); |
| 188 | return -1; |
| 189 | } |
| 190 | |
| 191 | if (!(opt = get_opt(opts, "link"))) { |
| 192 | fprintf(stderr, "error, missing link\n"); |
| 193 | return -EINVAL; |
| 194 | } |
| 195 | link = opt->val; |
| 196 | |
| 197 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_LINK); |
| 198 | mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, link); |
| 199 | mnl_attr_nest_end(nlh, nest); |
| 200 | |
| 201 | return msg_doit(nlh, NULL, NULL); |
| 202 | } |
| 203 | |
| 204 | static uint32_t perc(uint32_t count, uint32_t total) |
| 205 | { |
| 206 | return (count * 100 + (total / 2)) / total; |
| 207 | } |
| 208 | |
| 209 | static int _show_link_stat(struct nlattr *attrs[], struct nlattr *prop[], |
| 210 | struct nlattr *stats[]) |
| 211 | { |
| 212 | uint32_t proft; |
| 213 | |
| 214 | if (attrs[TIPC_NLA_LINK_ACTIVE]) |
| 215 | printf(" ACTIVE"); |
| 216 | else if (attrs[TIPC_NLA_LINK_UP]) |
| 217 | printf(" STANDBY"); |
| 218 | else |
| 219 | printf(" DEFUNCT"); |
| 220 | |
| 221 | printf(" MTU:%u Priority:%u Tolerance:%u ms Window:%u packets\n", |
| 222 | mnl_attr_get_u32(attrs[TIPC_NLA_LINK_MTU]), |
| 223 | mnl_attr_get_u32(prop[TIPC_NLA_PROP_PRIO]), |
| 224 | mnl_attr_get_u32(prop[TIPC_NLA_PROP_TOL]), |
| 225 | mnl_attr_get_u32(prop[TIPC_NLA_PROP_WIN])); |
| 226 | |
| 227 | printf(" RX packets:%u fragments:%u/%u bundles:%u/%u\n", |
| 228 | mnl_attr_get_u32(attrs[TIPC_NLA_LINK_RX]) - |
| 229 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), |
| 230 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), |
| 231 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), |
| 232 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), |
| 233 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); |
| 234 | |
| 235 | printf(" TX packets:%u fragments:%u/%u bundles:%u/%u\n", |
| 236 | mnl_attr_get_u32(attrs[TIPC_NLA_LINK_TX]) - |
| 237 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), |
| 238 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), |
| 239 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), |
| 240 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), |
| 241 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); |
| 242 | |
| 243 | proft = mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_PROF_TOT]); |
| 244 | printf(" TX profile sample:%u packets average:%u octets\n", |
| 245 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_CNT]), |
| 246 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_TOT]) / proft); |
| 247 | |
| 248 | printf(" 0-64:%u%% -256:%u%% -1024:%u%% -4096:%u%% " |
| 249 | "-16384:%u%% -32768:%u%% -66000:%u%%\n", |
| 250 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P0]), proft), |
| 251 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P1]), proft), |
| 252 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P2]), proft), |
| 253 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P3]), proft), |
| 254 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P4]), proft), |
| 255 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P5]), proft), |
| 256 | perc(mnl_attr_get_u32(stats[TIPC_NLA_STATS_MSG_LEN_P6]), proft)); |
| 257 | |
| 258 | printf(" RX states:%u probes:%u naks:%u defs:%u dups:%u\n", |
| 259 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_STATES]), |
| 260 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_PROBES]), |
| 261 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), |
| 262 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), |
| 263 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); |
| 264 | |
| 265 | printf(" TX states:%u probes:%u naks:%u acks:%u dups:%u\n", |
| 266 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_STATES]), |
| 267 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_PROBES]), |
| 268 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), |
| 269 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), |
| 270 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); |
| 271 | |
| 272 | printf(" Congestion link:%u Send queue max:%u avg:%u\n", |
| 273 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), |
| 274 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), |
| 275 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); |
| 276 | |
| 277 | return MNL_CB_OK; |
| 278 | } |
| 279 | |
| 280 | static int _show_bc_link_stat(struct nlattr *prop[], struct nlattr *stats[]) |
| 281 | { |
| 282 | printf(" Window:%u packets\n", |
| 283 | mnl_attr_get_u32(prop[TIPC_NLA_PROP_WIN])); |
| 284 | |
| 285 | printf(" RX packets:%u fragments:%u/%u bundles:%u/%u\n", |
| 286 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_INFO]), |
| 287 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTS]), |
| 288 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_FRAGMENTED]), |
| 289 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLES]), |
| 290 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_BUNDLED])); |
| 291 | |
| 292 | printf(" TX packets:%u fragments:%u/%u bundles:%u/%u\n", |
| 293 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_INFO]), |
| 294 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTS]), |
| 295 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_FRAGMENTED]), |
| 296 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLES]), |
| 297 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_BUNDLED])); |
| 298 | |
| 299 | printf(" RX naks:%u defs:%u dups:%u\n", |
| 300 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_NACKS]), |
| 301 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RX_DEFERRED]), |
| 302 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_DUPLICATES])); |
| 303 | |
| 304 | printf(" TX naks:%u acks:%u dups:%u\n", |
| 305 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_NACKS]), |
| 306 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_TX_ACKS]), |
| 307 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_RETRANSMITTED])); |
| 308 | |
| 309 | printf(" Congestion link:%u Send queue max:%u avg:%u\n", |
| 310 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_LINK_CONGS]), |
| 311 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_MAX_QUEUE]), |
| 312 | mnl_attr_get_u32(stats[TIPC_NLA_STATS_AVG_QUEUE])); |
| 313 | |
| 314 | return MNL_CB_OK; |
| 315 | } |
| 316 | |
| 317 | static int link_stat_show_cb(const struct nlmsghdr *nlh, void *data) |
| 318 | { |
| 319 | const char *name; |
| 320 | const char *link = data; |
| 321 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); |
| 322 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; |
| 323 | struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {}; |
| 324 | struct nlattr *prop[TIPC_NLA_PROP_MAX + 1] = {}; |
| 325 | struct nlattr *stats[TIPC_NLA_STATS_MAX + 1] = {}; |
| 326 | |
| 327 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); |
| 328 | if (!info[TIPC_NLA_LINK]) |
| 329 | return MNL_CB_ERROR; |
| 330 | |
| 331 | mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs); |
| 332 | if (!attrs[TIPC_NLA_LINK_NAME] || !attrs[TIPC_NLA_LINK_PROP] || |
| 333 | !attrs[TIPC_NLA_LINK_STATS]) |
| 334 | return MNL_CB_ERROR; |
| 335 | |
| 336 | mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, prop); |
| 337 | mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_STATS], parse_attrs, stats); |
| 338 | |
| 339 | name = mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]); |
| 340 | |
| 341 | /* If a link is passed, skip all but that link */ |
| 342 | if (link && (strcmp(name, link) != 0)) |
| 343 | return MNL_CB_OK; |
| 344 | |
| 345 | if (attrs[TIPC_NLA_LINK_BROADCAST]) { |
| 346 | printf("Link <%s>\n", name); |
| 347 | return _show_bc_link_stat(prop, stats); |
| 348 | } |
| 349 | |
| 350 | printf("\nLink <%s>\n", name); |
| 351 | |
| 352 | return _show_link_stat(attrs, prop, stats); |
| 353 | } |
| 354 | |
| 355 | static void cmd_link_stat_show_help(struct cmdl *cmdl) |
| 356 | { |
| 357 | fprintf(stderr, "Usage: %s link stat show [ link LINK ]\n", |
| 358 | cmdl->argv[0]); |
| 359 | } |
| 360 | |
| 361 | static int cmd_link_stat_show(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 362 | struct cmdl *cmdl, void *data) |
| 363 | { |
| 364 | char *link = NULL; |
| 365 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 366 | struct opt *opt; |
| 367 | struct opt opts[] = { |
| 368 | { "link", NULL }, |
| 369 | { NULL } |
| 370 | }; |
| 371 | |
| 372 | if (help_flag) { |
| 373 | (cmd->help)(cmdl); |
| 374 | return -EINVAL; |
| 375 | } |
| 376 | |
| 377 | if (!(nlh = msg_init(buf, TIPC_NL_LINK_GET))) { |
| 378 | fprintf(stderr, "error, message initialisation failed\n"); |
| 379 | return -1; |
| 380 | } |
| 381 | |
| 382 | if (parse_opts(opts, cmdl) < 0) |
| 383 | return -EINVAL; |
| 384 | |
| 385 | if ((opt = get_opt(opts, "link"))) |
| 386 | link = opt->val; |
| 387 | |
| 388 | return msg_dumpit(nlh, link_stat_show_cb, link); |
| 389 | } |
| 390 | |
| 391 | static void cmd_link_stat_help(struct cmdl *cmdl) |
| 392 | { |
| 393 | fprintf(stderr, "Usage: %s link stat COMMAND [ARGS]\n\n" |
| 394 | "COMMANDS:\n" |
| 395 | " reset - Reset link statistics for link\n" |
| 396 | " show - Get link priority\n", |
| 397 | cmdl->argv[0]); |
| 398 | } |
| 399 | |
| 400 | static int cmd_link_stat(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 401 | struct cmdl *cmdl, void *data) |
| 402 | { |
| 403 | const struct cmd cmds[] = { |
| 404 | { "reset", cmd_link_stat_reset, cmd_link_stat_reset_help }, |
| 405 | { "show", cmd_link_stat_show, cmd_link_stat_show_help }, |
| 406 | { NULL } |
| 407 | }; |
| 408 | |
| 409 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 410 | } |
| 411 | |
| 412 | static void cmd_link_set_help(struct cmdl *cmdl) |
| 413 | { |
| 414 | fprintf(stderr, "Usage: %s link set PPROPERTY link LINK\n\n" |
| 415 | "PROPERTIES\n" |
| 416 | " tolerance TOLERANCE - Set link tolerance\n" |
| 417 | " priority PRIORITY - Set link priority\n" |
| 418 | " window WINDOW - Set link window\n", |
| 419 | cmdl->argv[0]); |
| 420 | } |
| 421 | |
| 422 | static int cmd_link_set_prop(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 423 | struct cmdl *cmdl, void *data) |
| 424 | { |
| 425 | int val; |
| 426 | int prop; |
| 427 | char buf[MNL_SOCKET_BUFFER_SIZE]; |
| 428 | struct nlattr *props; |
| 429 | struct nlattr *attrs; |
| 430 | struct opt *opt; |
| 431 | struct opt opts[] = { |
| 432 | { "link", NULL }, |
| 433 | { NULL } |
| 434 | }; |
| 435 | |
| 436 | if (strcmp(cmd->cmd, "priority") == 0) |
| 437 | prop = TIPC_NLA_PROP_PRIO; |
| 438 | else if ((strcmp(cmd->cmd, "tolerance") == 0)) |
| 439 | prop = TIPC_NLA_PROP_TOL; |
| 440 | else if ((strcmp(cmd->cmd, "window") == 0)) |
| 441 | prop = TIPC_NLA_PROP_WIN; |
| 442 | else |
| 443 | return -EINVAL; |
| 444 | |
| 445 | if (help_flag) { |
| 446 | (cmd->help)(cmdl); |
| 447 | return -EINVAL; |
| 448 | } |
| 449 | |
| 450 | if (cmdl->optind >= cmdl->argc) { |
| 451 | fprintf(stderr, "error, missing value\n"); |
| 452 | return -EINVAL; |
| 453 | } |
| 454 | val = atoi(shift_cmdl(cmdl)); |
| 455 | |
| 456 | if (parse_opts(opts, cmdl) < 0) |
| 457 | return -EINVAL; |
| 458 | |
| 459 | if (!(nlh = msg_init(buf, TIPC_NL_LINK_SET))) { |
| 460 | fprintf(stderr, "error, message initialisation failed\n"); |
| 461 | return -1; |
| 462 | } |
| 463 | attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK); |
| 464 | |
| 465 | if (!(opt = get_opt(opts, "link"))) { |
| 466 | fprintf(stderr, "error, missing link\n"); |
| 467 | return -EINVAL; |
| 468 | } |
| 469 | mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, opt->val); |
| 470 | |
| 471 | props = mnl_attr_nest_start(nlh, TIPC_NLA_LINK_PROP); |
| 472 | mnl_attr_put_u32(nlh, prop, val); |
| 473 | mnl_attr_nest_end(nlh, props); |
| 474 | |
| 475 | mnl_attr_nest_end(nlh, attrs); |
| 476 | |
| 477 | return msg_doit(nlh, link_get_cb, &prop); |
| 478 | |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | static int cmd_link_set(struct nlmsghdr *nlh, const struct cmd *cmd, |
| 483 | struct cmdl *cmdl, void *data) |
| 484 | { |
| 485 | const struct cmd cmds[] = { |
| 486 | { "priority", cmd_link_set_prop, cmd_link_set_help }, |
| 487 | { "tolerance", cmd_link_set_prop, cmd_link_set_help }, |
| 488 | { "window", cmd_link_set_prop, cmd_link_set_help }, |
| 489 | { NULL } |
| 490 | }; |
| 491 | |
| 492 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 493 | } |
| 494 | |
| 495 | void cmd_link_help(struct cmdl *cmdl) |
| 496 | { |
| 497 | fprintf(stderr, |
| 498 | "Usage: %s link COMMAND [ARGS] ...\n" |
| 499 | "\n" |
| 500 | "COMMANDS\n" |
| 501 | " list - List links\n" |
| 502 | " get - Get various link properties\n" |
| 503 | " set - Set various link properties\n" |
| 504 | " statistics - Show or reset statistics\n", |
| 505 | cmdl->argv[0]); |
| 506 | } |
| 507 | |
| 508 | int cmd_link(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl, |
| 509 | void *data) |
| 510 | { |
| 511 | const struct cmd cmds[] = { |
| 512 | { "get", cmd_link_get, cmd_link_get_help }, |
| 513 | { "list", cmd_link_list, NULL }, |
| 514 | { "set", cmd_link_set, cmd_link_set_help }, |
| 515 | { "statistics", cmd_link_stat, cmd_link_stat_help }, |
| 516 | { NULL } |
| 517 | }; |
| 518 | |
| 519 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); |
| 520 | } |