1 /* $OpenBSD: ripctl.c,v 1.9 2009/09/14 11:49:25 claudio Exp $ 2 * 3 * Copyright (c) 2006 Michele Marchetto <mydecay@openbeer.it> 4 * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> 5 * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org> 6 * Copyright (c) 2003 Henning Brauer <henning@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/types.h> 22 #include <sys/socket.h> 23 #include <sys/un.h> 24 #include <netinet/in.h> 25 #include <arpa/inet.h> 26 #include <net/if_media.h> 27 #include <net/if_types.h> 28 29 #include <err.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string.h> 33 #include <unistd.h> 34 35 #include "rip.h" 36 #include "ripd.h" 37 #include "ripe.h" 38 #include "parser.h" 39 40 __dead void usage(void); 41 const char *fmt_timeframe_core(time_t); 42 const char *get_linkstate(int, int); 43 int show_interface_msg(struct imsg *); 44 int get_ifms_type(int); 45 int show_rib_msg(struct imsg *); 46 int show_nbr_msg(struct imsg *); 47 void show_fib_head(void); 48 int show_fib_msg(struct imsg *); 49 void show_interface_head(void); 50 int show_fib_interface_msg(struct imsg *); 51 const char *get_media_descr(int); 52 void print_baudrate(u_int64_t); 53 54 struct imsgbuf *ibuf; 55 56 __dead void 57 usage(void) 58 { 59 extern char *__progname; 60 61 fprintf(stderr, "usage: %s command [argument ...]\n", __progname); 62 exit(1); 63 } 64 65 int 66 main(int argc, char *argv[]) 67 { 68 struct sockaddr_un sun; 69 struct parse_result *res; 70 struct imsg imsg; 71 unsigned int ifidx = 0; 72 int ctl_sock; 73 int done = 0; 74 int n; 75 76 /* parse options */ 77 if ((res = parse(argc - 1, argv + 1)) == NULL) 78 exit(1); 79 80 /* connect to ripd control socket */ 81 if ((ctl_sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) 82 err(1, "socket"); 83 84 bzero(&sun, sizeof(sun)); 85 sun.sun_family = AF_UNIX; 86 strlcpy(sun.sun_path, RIPD_SOCKET, sizeof(sun.sun_path)); 87 if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1) 88 err(1, "connect: %s", RIPD_SOCKET); 89 90 if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL) 91 err(1, NULL); 92 imsg_init(ibuf, ctl_sock); 93 done = 0; 94 95 /* process user request */ 96 switch (res->action) { 97 case NONE: 98 usage(); 99 /* not reached */ 100 case SHOW: 101 case SHOW_IFACE: 102 printf("%-11s %-18s %-10s %-10s %-8s\n", 103 "Interface", "Address", "State", "Linkstate", 104 "Uptime"); 105 if (*res->ifname) { 106 ifidx = if_nametoindex(res->ifname); 107 if (ifidx == 0) 108 errx(1, "no such interface %s", res->ifname); 109 } 110 imsg_compose(ibuf, IMSG_CTL_SHOW_INTERFACE, 0, 0, -1, 111 &ifidx, sizeof(ifidx)); 112 break; 113 case SHOW_NBR: 114 printf("%-15s %-15s %-15s %-9s %-10s\n", "ID", 115 "State", "Address", "Iface", "Uptime"); 116 imsg_compose(ibuf, IMSG_CTL_SHOW_NBR, 0, 0, -1, NULL, 0); 117 break; 118 case SHOW_RIB: 119 printf("%-20s %-17s %-7s\n", "Destination", 120 "Nexthop", "Cost"); 121 imsg_compose(ibuf, IMSG_CTL_SHOW_RIB, 0, 0, -1, NULL, 0); 122 break; 123 case SHOW_FIB: 124 if (!res->addr.s_addr) 125 imsg_compose(ibuf, IMSG_CTL_KROUTE, 0, 0, -1, 126 &res->flags, sizeof(res->flags)); 127 else 128 imsg_compose(ibuf, IMSG_CTL_KROUTE_ADDR, 0, 0, -1, 129 &res->addr, sizeof(res->addr)); 130 show_fib_head(); 131 break; 132 case SHOW_FIB_IFACE: 133 if (*res->ifname) 134 imsg_compose(ibuf, IMSG_CTL_IFINFO, 0, 0, -1, 135 res->ifname, sizeof(res->ifname)); 136 else 137 imsg_compose(ibuf, IMSG_CTL_IFINFO, 0, 0, -1, NULL, 0); 138 show_interface_head(); 139 break; 140 case FIB: 141 errx(1, "fib couple|decouple"); 142 break; 143 case FIB_COUPLE: 144 imsg_compose(ibuf, IMSG_CTL_FIB_COUPLE, 0, 0, -1, NULL, 0); 145 printf("couple request sent.\n"); 146 done = 1; 147 break; 148 case FIB_DECOUPLE: 149 imsg_compose(ibuf, IMSG_CTL_FIB_DECOUPLE, 0, 0, -1, NULL, 0); 150 printf("decouple request sent.\n"); 151 done = 1; 152 break; 153 case RELOAD: 154 imsg_compose(ibuf, IMSG_CTL_RELOAD, 0, 0, -1, NULL, 0); 155 printf("reload request sent.\n"); 156 done = 1; 157 break; 158 } 159 160 while (ibuf->w.queued) 161 if (msgbuf_write(&ibuf->w) < 0) 162 err(1, "write error"); 163 164 while (!done) { 165 if ((n = imsg_read(ibuf)) == -1) 166 errx(1, "imsg_read error"); 167 if (n == 0) 168 errx(1, "pipe closed"); 169 170 while (!done) { 171 if ((n = imsg_get(ibuf, &imsg)) == -1) 172 errx(1, "imsg_get error"); 173 if (n == 0) 174 break; 175 switch (res->action) { 176 case SHOW: 177 case SHOW_IFACE: 178 done = show_interface_msg(&imsg); 179 break; 180 case SHOW_NBR: 181 done = show_nbr_msg(&imsg); 182 break; 183 case SHOW_RIB: 184 done = show_rib_msg(&imsg); 185 break; 186 case SHOW_FIB: 187 done = show_fib_msg(&imsg); 188 break; 189 case SHOW_FIB_IFACE: 190 done = show_fib_interface_msg(&imsg); 191 break; 192 case NONE: 193 case FIB: 194 case FIB_COUPLE: 195 case FIB_DECOUPLE: 196 case RELOAD: 197 break; 198 } 199 imsg_free(&imsg); 200 } 201 } 202 close(ctl_sock); 203 free(ibuf); 204 205 return (0); 206 } 207 208 int 209 get_ifms_type(int mediatype) 210 { 211 switch (mediatype) { 212 case IFT_ETHER: 213 return (IFM_ETHER); 214 break; 215 case IFT_FDDI: 216 return (IFM_FDDI); 217 break; 218 case IFT_CARP: 219 return (IFM_CARP); 220 break; 221 default: 222 return (0); 223 break; 224 } 225 } 226 227 #define TF_BUFS 8 228 #define TF_LEN 9 229 230 const char * 231 fmt_timeframe_core(time_t t) 232 { 233 char *buf; 234 static char tfbuf[TF_BUFS][TF_LEN]; /* ring buffer */ 235 static int idx = 0; 236 unsigned int sec, min, hrs, day, week; 237 238 if (t == 0) 239 return ("Stopped"); 240 241 buf = tfbuf[idx++]; 242 if (idx == TF_BUFS) 243 idx = 0; 244 245 week = t; 246 247 sec = week % 60; 248 week /= 60; 249 min = week % 60; 250 week /= 60; 251 hrs = week % 24; 252 week /= 24; 253 day = week % 7; 254 week /= 7; 255 256 if (week > 0) 257 snprintf(buf, TF_LEN, "%02uw%01ud%02uh", week, day, hrs); 258 else if (day > 0) 259 snprintf(buf, TF_LEN, "%01ud%02uh%02um", day, hrs, min); 260 else 261 snprintf(buf, TF_LEN, "%02u:%02u:%02u", hrs, min, sec); 262 263 return (buf); 264 } 265 266 /* prototype defined in ripd.h and shared with the kroute.c version */ 267 u_int8_t 268 mask2prefixlen(in_addr_t ina) 269 { 270 if (ina == 0) 271 return (0); 272 else 273 return (33 - ffs(ntohl(ina))); 274 } 275 276 int 277 show_interface_msg(struct imsg *imsg) 278 { 279 struct ctl_iface *iface; 280 char *netid; 281 282 switch (imsg->hdr.type) { 283 case IMSG_CTL_SHOW_IFACE: 284 iface = imsg->data; 285 286 if (asprintf(&netid, "%s/%d", inet_ntoa(iface->addr), 287 mask2prefixlen(iface->mask.s_addr)) == -1) 288 err(1, NULL); 289 printf("%-11s %-18s %-10s %-10s %-8s\n", 290 iface->name, netid, if_state_name(iface->state), 291 get_linkstate(iface->mediatype, iface->linkstate), 292 iface->uptime == 0 ? "00:00:00" : 293 fmt_timeframe_core(iface->uptime)); 294 free(netid); 295 break; 296 case IMSG_CTL_END: 297 printf("\n"); 298 return (1); 299 default: 300 break; 301 } 302 303 return (0); 304 } 305 306 int 307 show_rib_msg(struct imsg *imsg) 308 { 309 struct ctl_rt *rt; 310 char *dstnet; 311 312 switch (imsg->hdr.type) { 313 case IMSG_CTL_SHOW_RIB: 314 rt = imsg->data; 315 if (asprintf(&dstnet, "%s/%d", inet_ntoa(rt->prefix), 316 mask2prefixlen(rt->netmask.s_addr)) == -1) 317 err(1, NULL); 318 319 printf("%-20s %-17s %-7d\n", dstnet, 320 inet_ntoa(rt->nexthop), 321 rt->metric); 322 free(dstnet); 323 324 break; 325 case IMSG_CTL_END: 326 printf("\n"); 327 return (1); 328 default: 329 break; 330 } 331 332 return (0); 333 } 334 335 int 336 show_nbr_msg(struct imsg *imsg) 337 { 338 struct ctl_nbr *nbr; 339 char *state; 340 341 switch (imsg->hdr.type) { 342 case IMSG_CTL_SHOW_NBR: 343 nbr = imsg->data; 344 if (asprintf(&state, "%s/%s", nbr_state_name(nbr->nbr_state), 345 if_state_name(nbr->iface_state)) == -1) 346 err(1, NULL); 347 printf("%-15s %-16s", inet_ntoa(nbr->id), 348 state); 349 printf("%-15s %-10s", inet_ntoa(nbr->addr), nbr->name); 350 printf("%-15s\n", nbr->uptime == 0 ? "-" : 351 fmt_timeframe_core(nbr->uptime)); 352 free(state); 353 break; 354 case IMSG_CTL_END: 355 printf("\n"); 356 return (1); 357 default: 358 break; 359 } 360 361 return (0); 362 } 363 364 void 365 show_fib_head(void) 366 { 367 printf("flags: * = valid, R = RIP, C = Connected, S = Static\n"); 368 printf("%-6s %-20s %-17s\n", "Flags", "Destination", "Nexthop"); 369 } 370 371 int 372 show_fib_msg(struct imsg *imsg) 373 { 374 struct kroute *k; 375 char *p; 376 377 switch (imsg->hdr.type) { 378 case IMSG_CTL_KROUTE: 379 if (imsg->hdr.len < IMSG_HEADER_SIZE + sizeof(struct kroute)) 380 errx(1, "wrong imsg len"); 381 k = imsg->data; 382 383 if (k->flags & F_DOWN) 384 printf(" "); 385 else 386 printf("*"); 387 388 if (k->flags & F_RIPD_INSERTED) 389 printf("R"); 390 else if (k->flags & F_CONNECTED) 391 printf("C"); 392 else if (k->flags & F_STATIC) 393 printf("S"); 394 else 395 printf(" "); 396 397 printf(" "); 398 if (asprintf(&p, "%s/%u", inet_ntoa(k->prefix), 399 mask2prefixlen(k->netmask.s_addr)) == -1) 400 err(1, NULL); 401 printf("%-20s ", p); 402 free(p); 403 404 if (k->nexthop.s_addr) 405 printf("%s", inet_ntoa(k->nexthop)); 406 else if (k->flags & F_CONNECTED) 407 printf("link#%u", k->ifindex); 408 printf("\n"); 409 410 break; 411 case IMSG_CTL_END: 412 printf("\n"); 413 return (1); 414 default: 415 break; 416 } 417 418 return (0); 419 } 420 421 void 422 show_interface_head(void) 423 { 424 printf("%-15s%-15s%s\n", "Interface", "Flags", 425 "Link state"); 426 } 427 428 int 429 show_fib_interface_msg(struct imsg *imsg) 430 { 431 struct kif *k; 432 int ifms_type; 433 434 switch (imsg->hdr.type) { 435 case IMSG_CTL_IFINFO: 436 k = imsg->data; 437 printf("%-15s", k->ifname); 438 printf("%-15s", k->flags & IFF_UP ? "UP" : ""); 439 ifms_type = get_ifms_type(k->media_type); 440 if (ifms_type) 441 printf("%s, ", get_media_descr(ifms_type)); 442 443 printf("%s", get_linkstate(k->media_type, k->link_state)); 444 445 if (k->link_state != LINK_STATE_DOWN && k->baudrate > 0) { 446 printf(", "); 447 print_baudrate(k->baudrate); 448 } 449 printf("\n"); 450 break; 451 case IMSG_CTL_END: 452 printf("\n"); 453 return (1); 454 default: 455 break; 456 } 457 458 return (0); 459 } 460 461 const struct if_status_description 462 if_status_descriptions[] = LINK_STATE_DESCRIPTIONS; 463 const struct ifmedia_description 464 ifm_type_descriptions[] = IFM_TYPE_DESCRIPTIONS; 465 466 const char * 467 get_media_descr(int media_type) 468 { 469 const struct ifmedia_description *p; 470 471 for (p = ifm_type_descriptions; p->ifmt_string != NULL; p++) 472 if (media_type == p->ifmt_word) 473 return (p->ifmt_string); 474 475 return ("unknown"); 476 } 477 478 const char * 479 get_linkstate(int media_type, int link_state) 480 { 481 const struct if_status_description *p; 482 static char buf[8]; 483 484 for (p = if_status_descriptions; p->ifs_string != NULL; p++) { 485 if (LINK_STATE_DESC_MATCH(p, media_type, link_state)) 486 return (p->ifs_string); 487 } 488 snprintf(buf, sizeof(buf), "[#%d]", link_state); 489 return (buf); 490 } 491 492 void 493 print_baudrate(u_int64_t baudrate) 494 { 495 if (baudrate > IF_Gbps(1)) 496 printf("%llu GBit/s", baudrate / IF_Gbps(1)); 497 else if (baudrate > IF_Mbps(1)) 498 printf("%llu MBit/s", baudrate / IF_Mbps(1)); 499 else if (baudrate > IF_Kbps(1)) 500 printf("%llu KBit/s", baudrate / IF_Kbps(1)); 501 else 502 printf("%llu Bit/s", baudrate); 503 } 504