[821] | 1 | /* vi: set sw=4 ts=4: */
|
---|
| 2 | /*
|
---|
| 3 | * iproute.c "ip route".
|
---|
| 4 | *
|
---|
| 5 | * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
|
---|
| 6 | *
|
---|
| 7 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
|
---|
| 8 | *
|
---|
| 9 | *
|
---|
| 10 | * Changes:
|
---|
| 11 | *
|
---|
| 12 | * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses
|
---|
| 13 | * Kunihiro Ishiguro <kunihiro@zebra.org> 001102: rtnh_ifindex was not initialized
|
---|
| 14 | */
|
---|
| 15 |
|
---|
[1765] | 16 | #include "ip_common.h" /* #include "libbb.h" is inside */
|
---|
[821] | 17 | #include "rt_names.h"
|
---|
| 18 | #include "utils.h"
|
---|
| 19 |
|
---|
| 20 | #ifndef RTAX_RTTVAR
|
---|
| 21 | #define RTAX_RTTVAR RTAX_HOPS
|
---|
| 22 | #endif
|
---|
| 23 |
|
---|
| 24 |
|
---|
[1765] | 25 | typedef struct filter_t {
|
---|
[821] | 26 | int tb;
|
---|
| 27 | int flushed;
|
---|
| 28 | char *flushb;
|
---|
| 29 | int flushp;
|
---|
| 30 | int flushe;
|
---|
| 31 | struct rtnl_handle *rth;
|
---|
| 32 | int protocol, protocolmask;
|
---|
| 33 | int scope, scopemask;
|
---|
| 34 | int type, typemask;
|
---|
| 35 | int tos, tosmask;
|
---|
| 36 | int iif, iifmask;
|
---|
| 37 | int oif, oifmask;
|
---|
| 38 | int realm, realmmask;
|
---|
| 39 | inet_prefix rprefsrc;
|
---|
| 40 | inet_prefix rvia;
|
---|
| 41 | inet_prefix rdst;
|
---|
| 42 | inet_prefix mdst;
|
---|
| 43 | inet_prefix rsrc;
|
---|
| 44 | inet_prefix msrc;
|
---|
[1765] | 45 | } filter_t;
|
---|
[821] | 46 |
|
---|
[1765] | 47 | #define filter (*(filter_t*)&bb_common_bufsiz1)
|
---|
| 48 |
|
---|
[821] | 49 | static int flush_update(void)
|
---|
| 50 | {
|
---|
| 51 | if (rtnl_send(filter.rth, filter.flushb, filter.flushp) < 0) {
|
---|
[1765] | 52 | bb_perror_msg("failed to send flush request");
|
---|
[821] | 53 | return -1;
|
---|
| 54 | }
|
---|
| 55 | filter.flushp = 0;
|
---|
| 56 | return 0;
|
---|
| 57 | }
|
---|
| 58 |
|
---|
[1765] | 59 | static unsigned get_hz(void)
|
---|
| 60 | {
|
---|
| 61 | static unsigned hz_internal;
|
---|
| 62 | FILE *fp;
|
---|
| 63 |
|
---|
| 64 | if (hz_internal)
|
---|
| 65 | return hz_internal;
|
---|
| 66 |
|
---|
| 67 | fp = fopen("/proc/net/psched", "r");
|
---|
| 68 | if (fp) {
|
---|
| 69 | unsigned nom, denom;
|
---|
| 70 |
|
---|
| 71 | if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2)
|
---|
| 72 | if (nom == 1000000)
|
---|
| 73 | hz_internal = denom;
|
---|
| 74 | fclose(fp);
|
---|
| 75 | }
|
---|
| 76 | if (!hz_internal)
|
---|
| 77 | hz_internal = sysconf(_SC_CLK_TCK);
|
---|
| 78 | return hz_internal;
|
---|
| 79 | }
|
---|
| 80 |
|
---|
[821] | 81 | static int print_route(struct sockaddr_nl *who ATTRIBUTE_UNUSED,
|
---|
| 82 | struct nlmsghdr *n, void *arg)
|
---|
| 83 | {
|
---|
| 84 | FILE *fp = (FILE*)arg;
|
---|
| 85 | struct rtmsg *r = NLMSG_DATA(n);
|
---|
| 86 | int len = n->nlmsg_len;
|
---|
| 87 | struct rtattr * tb[RTA_MAX+1];
|
---|
| 88 | char abuf[256];
|
---|
| 89 | inet_prefix dst;
|
---|
| 90 | inet_prefix src;
|
---|
| 91 | int host_len = -1;
|
---|
| 92 | SPRINT_BUF(b1);
|
---|
| 93 |
|
---|
| 94 |
|
---|
| 95 | if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) {
|
---|
| 96 | fprintf(stderr, "Not a route: %08x %08x %08x\n",
|
---|
| 97 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
|
---|
| 98 | return 0;
|
---|
| 99 | }
|
---|
| 100 | if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE)
|
---|
| 101 | return 0;
|
---|
| 102 | len -= NLMSG_LENGTH(sizeof(*r));
|
---|
[1765] | 103 | if (len < 0)
|
---|
| 104 | bb_error_msg_and_die("wrong nlmsg len %d", len);
|
---|
[821] | 105 |
|
---|
| 106 | if (r->rtm_family == AF_INET6)
|
---|
| 107 | host_len = 128;
|
---|
| 108 | else if (r->rtm_family == AF_INET)
|
---|
| 109 | host_len = 32;
|
---|
| 110 |
|
---|
| 111 | if (r->rtm_family == AF_INET6) {
|
---|
| 112 | if (filter.tb) {
|
---|
| 113 | if (filter.tb < 0) {
|
---|
| 114 | if (!(r->rtm_flags&RTM_F_CLONED)) {
|
---|
| 115 | return 0;
|
---|
| 116 | }
|
---|
| 117 | } else {
|
---|
| 118 | if (r->rtm_flags&RTM_F_CLONED) {
|
---|
| 119 | return 0;
|
---|
| 120 | }
|
---|
| 121 | if (filter.tb == RT_TABLE_LOCAL) {
|
---|
| 122 | if (r->rtm_type != RTN_LOCAL) {
|
---|
| 123 | return 0;
|
---|
| 124 | }
|
---|
| 125 | } else if (filter.tb == RT_TABLE_MAIN) {
|
---|
| 126 | if (r->rtm_type == RTN_LOCAL) {
|
---|
| 127 | return 0;
|
---|
| 128 | }
|
---|
| 129 | } else {
|
---|
| 130 | return 0;
|
---|
| 131 | }
|
---|
| 132 | }
|
---|
| 133 | }
|
---|
| 134 | } else {
|
---|
| 135 | if (filter.tb > 0 && filter.tb != r->rtm_table) {
|
---|
| 136 | return 0;
|
---|
| 137 | }
|
---|
| 138 | }
|
---|
| 139 | if (filter.rdst.family &&
|
---|
| 140 | (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) {
|
---|
| 141 | return 0;
|
---|
| 142 | }
|
---|
| 143 | if (filter.mdst.family &&
|
---|
| 144 | (r->rtm_family != filter.mdst.family ||
|
---|
| 145 | (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) {
|
---|
| 146 | return 0;
|
---|
| 147 | }
|
---|
| 148 | if (filter.rsrc.family &&
|
---|
| 149 | (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) {
|
---|
| 150 | return 0;
|
---|
| 151 | }
|
---|
| 152 | if (filter.msrc.family &&
|
---|
| 153 | (r->rtm_family != filter.msrc.family ||
|
---|
| 154 | (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) {
|
---|
| 155 | return 0;
|
---|
| 156 | }
|
---|
| 157 |
|
---|
| 158 | memset(tb, 0, sizeof(tb));
|
---|
| 159 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
|
---|
| 160 |
|
---|
| 161 | if (filter.rdst.family && inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen))
|
---|
| 162 | return 0;
|
---|
| 163 | if (filter.mdst.family && filter.mdst.bitlen >= 0 &&
|
---|
| 164 | inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len))
|
---|
| 165 | return 0;
|
---|
| 166 |
|
---|
| 167 | if (filter.rsrc.family && inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen))
|
---|
| 168 | return 0;
|
---|
| 169 | if (filter.msrc.family && filter.msrc.bitlen >= 0 &&
|
---|
| 170 | inet_addr_match(&src, &filter.msrc, r->rtm_src_len))
|
---|
| 171 | return 0;
|
---|
| 172 |
|
---|
| 173 | if (filter.flushb &&
|
---|
| 174 | r->rtm_family == AF_INET6 &&
|
---|
| 175 | r->rtm_dst_len == 0 &&
|
---|
| 176 | r->rtm_type == RTN_UNREACHABLE &&
|
---|
| 177 | tb[RTA_PRIORITY] &&
|
---|
| 178 | *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1)
|
---|
| 179 | return 0;
|
---|
| 180 |
|
---|
| 181 | if (filter.flushb) {
|
---|
| 182 | struct nlmsghdr *fn;
|
---|
| 183 | if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
|
---|
| 184 | if (flush_update())
|
---|
[1765] | 185 | bb_error_msg_and_die("flush");
|
---|
[821] | 186 | }
|
---|
| 187 | fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
|
---|
| 188 | memcpy(fn, n, n->nlmsg_len);
|
---|
| 189 | fn->nlmsg_type = RTM_DELROUTE;
|
---|
| 190 | fn->nlmsg_flags = NLM_F_REQUEST;
|
---|
| 191 | fn->nlmsg_seq = ++filter.rth->seq;
|
---|
| 192 | filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
|
---|
| 193 | filter.flushed++;
|
---|
| 194 | return 0;
|
---|
| 195 | }
|
---|
| 196 |
|
---|
| 197 | if (n->nlmsg_type == RTM_DELROUTE) {
|
---|
| 198 | fprintf(fp, "Deleted ");
|
---|
| 199 | }
|
---|
| 200 | if (r->rtm_type != RTN_UNICAST && !filter.type) {
|
---|
| 201 | fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
|
---|
| 202 | }
|
---|
| 203 |
|
---|
| 204 | if (tb[RTA_DST]) {
|
---|
| 205 | if (r->rtm_dst_len != host_len) {
|
---|
| 206 | fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family,
|
---|
| 207 | RTA_PAYLOAD(tb[RTA_DST]),
|
---|
| 208 | RTA_DATA(tb[RTA_DST]),
|
---|
| 209 | abuf, sizeof(abuf)),
|
---|
| 210 | r->rtm_dst_len
|
---|
| 211 | );
|
---|
| 212 | } else {
|
---|
| 213 | fprintf(fp, "%s ", format_host(r->rtm_family,
|
---|
| 214 | RTA_PAYLOAD(tb[RTA_DST]),
|
---|
| 215 | RTA_DATA(tb[RTA_DST]),
|
---|
| 216 | abuf, sizeof(abuf))
|
---|
| 217 | );
|
---|
| 218 | }
|
---|
| 219 | } else if (r->rtm_dst_len) {
|
---|
| 220 | fprintf(fp, "0/%d ", r->rtm_dst_len);
|
---|
| 221 | } else {
|
---|
| 222 | fprintf(fp, "default ");
|
---|
| 223 | }
|
---|
| 224 | if (tb[RTA_SRC]) {
|
---|
| 225 | if (r->rtm_src_len != host_len) {
|
---|
| 226 | fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family,
|
---|
| 227 | RTA_PAYLOAD(tb[RTA_SRC]),
|
---|
| 228 | RTA_DATA(tb[RTA_SRC]),
|
---|
| 229 | abuf, sizeof(abuf)),
|
---|
| 230 | r->rtm_src_len
|
---|
| 231 | );
|
---|
| 232 | } else {
|
---|
| 233 | fprintf(fp, "from %s ", format_host(r->rtm_family,
|
---|
| 234 | RTA_PAYLOAD(tb[RTA_SRC]),
|
---|
| 235 | RTA_DATA(tb[RTA_SRC]),
|
---|
| 236 | abuf, sizeof(abuf))
|
---|
| 237 | );
|
---|
| 238 | }
|
---|
| 239 | } else if (r->rtm_src_len) {
|
---|
| 240 | fprintf(fp, "from 0/%u ", r->rtm_src_len);
|
---|
| 241 | }
|
---|
| 242 | if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) {
|
---|
| 243 | fprintf(fp, "via %s ",
|
---|
| 244 | format_host(r->rtm_family,
|
---|
| 245 | RTA_PAYLOAD(tb[RTA_GATEWAY]),
|
---|
| 246 | RTA_DATA(tb[RTA_GATEWAY]),
|
---|
| 247 | abuf, sizeof(abuf)));
|
---|
| 248 | }
|
---|
| 249 | if (tb[RTA_OIF] && filter.oifmask != -1) {
|
---|
| 250 | fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
|
---|
| 251 | }
|
---|
| 252 |
|
---|
| 253 | if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
|
---|
| 254 | /* Do not use format_host(). It is our local addr
|
---|
| 255 | and symbolic name will not be useful.
|
---|
| 256 | */
|
---|
| 257 | fprintf(fp, " src %s ",
|
---|
| 258 | rt_addr_n2a(r->rtm_family,
|
---|
| 259 | RTA_PAYLOAD(tb[RTA_PREFSRC]),
|
---|
| 260 | RTA_DATA(tb[RTA_PREFSRC]),
|
---|
| 261 | abuf, sizeof(abuf)));
|
---|
| 262 | }
|
---|
| 263 | if (tb[RTA_PRIORITY]) {
|
---|
[1765] | 264 | fprintf(fp, " metric %d ", *(uint32_t*)RTA_DATA(tb[RTA_PRIORITY]));
|
---|
[821] | 265 | }
|
---|
| 266 | if (r->rtm_family == AF_INET6) {
|
---|
| 267 | struct rta_cacheinfo *ci = NULL;
|
---|
| 268 | if (tb[RTA_CACHEINFO]) {
|
---|
| 269 | ci = RTA_DATA(tb[RTA_CACHEINFO]);
|
---|
| 270 | }
|
---|
| 271 | if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
|
---|
| 272 | if (r->rtm_flags & RTM_F_CLONED) {
|
---|
[1765] | 273 | fprintf(fp, "%c cache ", _SL_);
|
---|
[821] | 274 | }
|
---|
| 275 | if (ci->rta_expires) {
|
---|
[1765] | 276 | fprintf(fp, " expires %dsec", ci->rta_expires / get_hz());
|
---|
[821] | 277 | }
|
---|
| 278 | if (ci->rta_error != 0) {
|
---|
| 279 | fprintf(fp, " error %d", ci->rta_error);
|
---|
| 280 | }
|
---|
| 281 | } else if (ci) {
|
---|
| 282 | if (ci->rta_error != 0)
|
---|
| 283 | fprintf(fp, " error %d", ci->rta_error);
|
---|
| 284 | }
|
---|
| 285 | }
|
---|
| 286 | if (tb[RTA_IIF] && filter.iifmask != -1) {
|
---|
| 287 | fprintf(fp, " iif %s", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_IIF])));
|
---|
| 288 | }
|
---|
[1765] | 289 | fputc('\n', fp);
|
---|
[821] | 290 | fflush(fp);
|
---|
| 291 | return 0;
|
---|
| 292 | }
|
---|
| 293 |
|
---|
[1765] | 294 | /* Return value becomes exitcode. It's okay to not return at all */
|
---|
[821] | 295 | static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
|
---|
| 296 | {
|
---|
[1765] | 297 | static const char keywords[] ALIGN1 =
|
---|
| 298 | "src\0""via\0""mtu\0""lock\0""protocol\0"USE_FEATURE_IP_RULE("table\0")
|
---|
| 299 | "dev\0""oif\0""to\0";
|
---|
| 300 | enum {
|
---|
| 301 | ARG_src,
|
---|
| 302 | ARG_via,
|
---|
| 303 | ARG_mtu, PARM_lock,
|
---|
| 304 | ARG_protocol,
|
---|
| 305 | USE_FEATURE_IP_RULE(ARG_table,)
|
---|
| 306 | ARG_dev,
|
---|
| 307 | ARG_oif,
|
---|
| 308 | ARG_to
|
---|
| 309 | };
|
---|
| 310 | enum {
|
---|
| 311 | gw_ok = 1 << 0,
|
---|
| 312 | dst_ok = 1 << 1,
|
---|
| 313 | proto_ok = 1 << 2,
|
---|
| 314 | type_ok = 1 << 3
|
---|
| 315 | };
|
---|
[821] | 316 | struct rtnl_handle rth;
|
---|
| 317 | struct {
|
---|
| 318 | struct nlmsghdr n;
|
---|
| 319 | struct rtmsg r;
|
---|
| 320 | char buf[1024];
|
---|
| 321 | } req;
|
---|
[1765] | 322 | char mxbuf[256];
|
---|
[821] | 323 | struct rtattr * mxrta = (void*)mxbuf;
|
---|
| 324 | unsigned mxlock = 0;
|
---|
[1765] | 325 | char *d = NULL;
|
---|
| 326 | smalluint ok = 0;
|
---|
| 327 | int arg;
|
---|
[821] | 328 |
|
---|
| 329 | memset(&req, 0, sizeof(req));
|
---|
| 330 |
|
---|
| 331 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
|
---|
| 332 | req.n.nlmsg_flags = NLM_F_REQUEST|flags;
|
---|
| 333 | req.n.nlmsg_type = cmd;
|
---|
| 334 | req.r.rtm_family = preferred_family;
|
---|
| 335 | req.r.rtm_table = RT_TABLE_MAIN;
|
---|
| 336 | req.r.rtm_scope = RT_SCOPE_NOWHERE;
|
---|
| 337 |
|
---|
| 338 | if (cmd != RTM_DELROUTE) {
|
---|
| 339 | req.r.rtm_protocol = RTPROT_BOOT;
|
---|
| 340 | req.r.rtm_scope = RT_SCOPE_UNIVERSE;
|
---|
| 341 | req.r.rtm_type = RTN_UNICAST;
|
---|
| 342 | }
|
---|
| 343 |
|
---|
| 344 | mxrta->rta_type = RTA_METRICS;
|
---|
| 345 | mxrta->rta_len = RTA_LENGTH(0);
|
---|
| 346 |
|
---|
| 347 | while (argc > 0) {
|
---|
[1765] | 348 | arg = index_in_substrings(keywords, *argv);
|
---|
| 349 | if (arg == ARG_src) {
|
---|
[821] | 350 | inet_prefix addr;
|
---|
| 351 | NEXT_ARG();
|
---|
| 352 | get_addr(&addr, *argv, req.r.rtm_family);
|
---|
[1765] | 353 | if (req.r.rtm_family == AF_UNSPEC)
|
---|
[821] | 354 | req.r.rtm_family = addr.family;
|
---|
| 355 | addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
|
---|
[1765] | 356 | } else if (arg == ARG_via) {
|
---|
[821] | 357 | inet_prefix addr;
|
---|
[1765] | 358 | ok |= gw_ok;
|
---|
[821] | 359 | NEXT_ARG();
|
---|
| 360 | get_addr(&addr, *argv, req.r.rtm_family);
|
---|
| 361 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 362 | req.r.rtm_family = addr.family;
|
---|
| 363 | }
|
---|
| 364 | addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
|
---|
[1765] | 365 | } else if (arg == ARG_mtu) {
|
---|
[821] | 366 | unsigned mtu;
|
---|
| 367 | NEXT_ARG();
|
---|
[1765] | 368 | if (index_in_strings(keywords, *argv) == PARM_lock) {
|
---|
[821] | 369 | mxlock |= (1<<RTAX_MTU);
|
---|
| 370 | NEXT_ARG();
|
---|
| 371 | }
|
---|
[1765] | 372 | if (get_unsigned(&mtu, *argv, 0))
|
---|
[821] | 373 | invarg(*argv, "mtu");
|
---|
| 374 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
|
---|
[1765] | 375 | } else if (arg == ARG_protocol) {
|
---|
[821] | 376 | uint32_t prot;
|
---|
| 377 | NEXT_ARG();
|
---|
| 378 | if (rtnl_rtprot_a2n(&prot, *argv))
|
---|
| 379 | invarg(*argv, "protocol");
|
---|
| 380 | req.r.rtm_protocol = prot;
|
---|
[1765] | 381 | ok |= proto_ok;
|
---|
| 382 | #if ENABLE_FEATURE_IP_RULE
|
---|
| 383 | } else if (arg == ARG_table) {
|
---|
| 384 | uint32_t tid;
|
---|
[821] | 385 | NEXT_ARG();
|
---|
[1765] | 386 | if (rtnl_rttable_a2n(&tid, *argv))
|
---|
| 387 | invarg(*argv, "table");
|
---|
| 388 | req.r.rtm_table = tid;
|
---|
| 389 | #endif
|
---|
| 390 | } else if (arg == ARG_dev || arg == ARG_oif) {
|
---|
| 391 | NEXT_ARG();
|
---|
[821] | 392 | d = *argv;
|
---|
| 393 | } else {
|
---|
| 394 | int type;
|
---|
| 395 | inet_prefix dst;
|
---|
| 396 |
|
---|
[1765] | 397 | if (arg == ARG_to) {
|
---|
[821] | 398 | NEXT_ARG();
|
---|
| 399 | }
|
---|
[1765] | 400 | if ((**argv < '0' || **argv > '9')
|
---|
| 401 | && rtnl_rtntype_a2n(&type, *argv) == 0) {
|
---|
[821] | 402 | NEXT_ARG();
|
---|
| 403 | req.r.rtm_type = type;
|
---|
[1765] | 404 | ok |= type_ok;
|
---|
[821] | 405 | }
|
---|
| 406 |
|
---|
[1765] | 407 | if (ok & dst_ok) {
|
---|
[821] | 408 | duparg2("to", *argv);
|
---|
| 409 | }
|
---|
| 410 | get_prefix(&dst, *argv, req.r.rtm_family);
|
---|
| 411 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 412 | req.r.rtm_family = dst.family;
|
---|
| 413 | }
|
---|
| 414 | req.r.rtm_dst_len = dst.bitlen;
|
---|
[1765] | 415 | ok |= dst_ok;
|
---|
[821] | 416 | if (dst.bytelen) {
|
---|
| 417 | addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
|
---|
| 418 | }
|
---|
| 419 | }
|
---|
| 420 | argc--; argv++;
|
---|
| 421 | }
|
---|
| 422 |
|
---|
[1765] | 423 | xrtnl_open(&rth);
|
---|
[821] | 424 |
|
---|
| 425 | if (d) {
|
---|
| 426 | int idx;
|
---|
| 427 |
|
---|
| 428 | ll_init_map(&rth);
|
---|
| 429 |
|
---|
| 430 | if (d) {
|
---|
[1765] | 431 | idx = xll_name_to_index(d);
|
---|
[821] | 432 | addattr32(&req.n, sizeof(req), RTA_OIF, idx);
|
---|
| 433 | }
|
---|
| 434 | }
|
---|
| 435 |
|
---|
| 436 | if (mxrta->rta_len > RTA_LENGTH(0)) {
|
---|
| 437 | if (mxlock) {
|
---|
| 438 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock);
|
---|
| 439 | }
|
---|
| 440 | addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
|
---|
| 441 | }
|
---|
| 442 |
|
---|
[1765] | 443 | if (req.r.rtm_type == RTN_LOCAL || req.r.rtm_type == RTN_NAT)
|
---|
| 444 | req.r.rtm_scope = RT_SCOPE_HOST;
|
---|
| 445 | else if (req.r.rtm_type == RTN_BROADCAST ||
|
---|
| 446 | req.r.rtm_type == RTN_MULTICAST ||
|
---|
| 447 | req.r.rtm_type == RTN_ANYCAST)
|
---|
| 448 | req.r.rtm_scope = RT_SCOPE_LINK;
|
---|
| 449 | else if (req.r.rtm_type == RTN_UNICAST || req.r.rtm_type == RTN_UNSPEC) {
|
---|
| 450 | if (cmd == RTM_DELROUTE)
|
---|
| 451 | req.r.rtm_scope = RT_SCOPE_NOWHERE;
|
---|
| 452 | else if (!(ok & gw_ok))
|
---|
| 453 | req.r.rtm_scope = RT_SCOPE_LINK;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
[821] | 456 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 457 | req.r.rtm_family = AF_INET;
|
---|
| 458 | }
|
---|
| 459 |
|
---|
| 460 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) {
|
---|
[1765] | 461 | return 2;
|
---|
[821] | 462 | }
|
---|
| 463 |
|
---|
| 464 | return 0;
|
---|
| 465 | }
|
---|
| 466 |
|
---|
| 467 | static int rtnl_rtcache_request(struct rtnl_handle *rth, int family)
|
---|
| 468 | {
|
---|
| 469 | struct {
|
---|
| 470 | struct nlmsghdr nlh;
|
---|
| 471 | struct rtmsg rtm;
|
---|
| 472 | } req;
|
---|
| 473 | struct sockaddr_nl nladdr;
|
---|
| 474 |
|
---|
| 475 | memset(&nladdr, 0, sizeof(nladdr));
|
---|
| 476 | memset(&req, 0, sizeof(req));
|
---|
| 477 | nladdr.nl_family = AF_NETLINK;
|
---|
| 478 |
|
---|
| 479 | req.nlh.nlmsg_len = sizeof(req);
|
---|
| 480 | req.nlh.nlmsg_type = RTM_GETROUTE;
|
---|
| 481 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_REQUEST;
|
---|
| 482 | req.nlh.nlmsg_pid = 0;
|
---|
| 483 | req.nlh.nlmsg_seq = rth->dump = ++rth->seq;
|
---|
| 484 | req.rtm.rtm_family = family;
|
---|
| 485 | req.rtm.rtm_flags |= RTM_F_CLONED;
|
---|
| 486 |
|
---|
[1765] | 487 | return xsendto(rth->fd, (void*)&req, sizeof(req), (struct sockaddr*)&nladdr, sizeof(nladdr));
|
---|
[821] | 488 | }
|
---|
| 489 |
|
---|
[1765] | 490 | static void iproute_flush_cache(void)
|
---|
[821] | 491 | {
|
---|
[1765] | 492 | static const char fn[] ALIGN1 = "/proc/sys/net/ipv4/route/flush";
|
---|
| 493 | int flush_fd = open_or_warn(fn, O_WRONLY);
|
---|
[821] | 494 |
|
---|
| 495 | if (flush_fd < 0) {
|
---|
[1765] | 496 | return;
|
---|
[821] | 497 | }
|
---|
| 498 |
|
---|
[1765] | 499 | if (write(flush_fd, "-1", 2) < 2) {
|
---|
| 500 | bb_perror_msg("cannot flush routing cache");
|
---|
| 501 | return;
|
---|
[821] | 502 | }
|
---|
| 503 | close(flush_fd);
|
---|
| 504 | }
|
---|
| 505 |
|
---|
| 506 | static void iproute_reset_filter(void)
|
---|
| 507 | {
|
---|
| 508 | memset(&filter, 0, sizeof(filter));
|
---|
| 509 | filter.mdst.bitlen = -1;
|
---|
| 510 | filter.msrc.bitlen = -1;
|
---|
| 511 | }
|
---|
| 512 |
|
---|
[1765] | 513 | /* Return value becomes exitcode. It's okay to not return at all */
|
---|
[821] | 514 | static int iproute_list_or_flush(int argc, char **argv, int flush)
|
---|
| 515 | {
|
---|
| 516 | int do_ipv6 = preferred_family;
|
---|
| 517 | struct rtnl_handle rth;
|
---|
| 518 | char *id = NULL;
|
---|
| 519 | char *od = NULL;
|
---|
[1765] | 520 | static const char keywords[] ALIGN1 =
|
---|
| 521 | "protocol\0""all\0""dev\0""oif\0""iif\0""via\0""table\0""cache\0" /*all*/
|
---|
| 522 | "from\0""root\0""match\0""exact\0""to\0"/*root match exact*/;
|
---|
| 523 | enum {
|
---|
| 524 | ARG_proto, PARM_all,
|
---|
| 525 | ARG_dev,
|
---|
| 526 | ARG_oif,
|
---|
| 527 | ARG_iif,
|
---|
| 528 | ARG_via,
|
---|
| 529 | ARG_table, PARM_cache, /*PARM_all,*/
|
---|
| 530 | ARG_from, PARM_root, PARM_match, PARM_exact,
|
---|
| 531 | ARG_to /*PARM_root, PARM_match, PARM_exact*/
|
---|
| 532 | };
|
---|
| 533 | int arg, parm;
|
---|
[821] | 534 | iproute_reset_filter();
|
---|
| 535 | filter.tb = RT_TABLE_MAIN;
|
---|
| 536 |
|
---|
[1765] | 537 | if (flush && argc <= 0)
|
---|
| 538 | bb_error_msg_and_die(bb_msg_requires_arg, "\"ip route flush\"");
|
---|
[821] | 539 |
|
---|
| 540 | while (argc > 0) {
|
---|
[1765] | 541 | arg = index_in_substrings(keywords, *argv);
|
---|
| 542 | if (arg == ARG_proto) {
|
---|
[821] | 543 | uint32_t prot = 0;
|
---|
| 544 | NEXT_ARG();
|
---|
| 545 | filter.protocolmask = -1;
|
---|
| 546 | if (rtnl_rtprot_a2n(&prot, *argv)) {
|
---|
[1765] | 547 | if (index_in_strings(keywords, *argv) != PARM_all)
|
---|
[821] | 548 | invarg(*argv, "protocol");
|
---|
| 549 | prot = 0;
|
---|
| 550 | filter.protocolmask = 0;
|
---|
| 551 | }
|
---|
| 552 | filter.protocol = prot;
|
---|
[1765] | 553 | } else if (arg == ARG_dev || arg == ARG_oif) {
|
---|
[821] | 554 | NEXT_ARG();
|
---|
| 555 | od = *argv;
|
---|
[1765] | 556 | } else if (arg == ARG_iif) {
|
---|
[821] | 557 | NEXT_ARG();
|
---|
| 558 | id = *argv;
|
---|
[1765] | 559 | } else if (arg == ARG_via) {
|
---|
[821] | 560 | NEXT_ARG();
|
---|
[1765] | 561 | get_prefix(&filter.rvia, *argv, do_ipv6);
|
---|
| 562 | } else if (arg == ARG_table) {
|
---|
| 563 | NEXT_ARG();
|
---|
| 564 | parm = index_in_substrings(keywords, *argv);
|
---|
| 565 | if (parm == PARM_cache)
|
---|
| 566 | filter.tb = -1;
|
---|
| 567 | else if (parm == PARM_all)
|
---|
| 568 | filter.tb = 0;
|
---|
| 569 | else
|
---|
| 570 | invarg(*argv, "table");
|
---|
| 571 | } else if (arg == ARG_from) {
|
---|
| 572 | NEXT_ARG();
|
---|
| 573 | parm = index_in_substrings(keywords, *argv);
|
---|
| 574 | if (parm == PARM_root) {
|
---|
[821] | 575 | NEXT_ARG();
|
---|
| 576 | get_prefix(&filter.rsrc, *argv, do_ipv6);
|
---|
[1765] | 577 | } else if (parm == PARM_match) {
|
---|
[821] | 578 | NEXT_ARG();
|
---|
| 579 | get_prefix(&filter.msrc, *argv, do_ipv6);
|
---|
| 580 | } else {
|
---|
[1765] | 581 | if (parm == PARM_exact)
|
---|
[821] | 582 | NEXT_ARG();
|
---|
| 583 | get_prefix(&filter.msrc, *argv, do_ipv6);
|
---|
| 584 | filter.rsrc = filter.msrc;
|
---|
| 585 | }
|
---|
| 586 | } else {
|
---|
[1765] | 587 | /* parm = arg; // would be more plausible, we reuse arg here */
|
---|
| 588 | if (arg == ARG_to) {
|
---|
[821] | 589 | NEXT_ARG();
|
---|
[1765] | 590 | arg = index_in_substrings(keywords, *argv);
|
---|
[821] | 591 | }
|
---|
[1765] | 592 | if (arg == PARM_root) {
|
---|
[821] | 593 | NEXT_ARG();
|
---|
| 594 | get_prefix(&filter.rdst, *argv, do_ipv6);
|
---|
[1765] | 595 | } else if (arg == PARM_match) {
|
---|
[821] | 596 | NEXT_ARG();
|
---|
| 597 | get_prefix(&filter.mdst, *argv, do_ipv6);
|
---|
| 598 | } else {
|
---|
[1765] | 599 | if (arg == PARM_exact)
|
---|
[821] | 600 | NEXT_ARG();
|
---|
| 601 | get_prefix(&filter.mdst, *argv, do_ipv6);
|
---|
| 602 | filter.rdst = filter.mdst;
|
---|
| 603 | }
|
---|
| 604 | }
|
---|
[1765] | 605 | argc--;
|
---|
| 606 | argv++;
|
---|
[821] | 607 | }
|
---|
| 608 |
|
---|
| 609 | if (do_ipv6 == AF_UNSPEC && filter.tb) {
|
---|
| 610 | do_ipv6 = AF_INET;
|
---|
| 611 | }
|
---|
| 612 |
|
---|
[1765] | 613 | xrtnl_open(&rth);
|
---|
[821] | 614 |
|
---|
| 615 | ll_init_map(&rth);
|
---|
| 616 |
|
---|
| 617 | if (id || od) {
|
---|
| 618 | int idx;
|
---|
| 619 |
|
---|
| 620 | if (id) {
|
---|
[1765] | 621 | idx = xll_name_to_index(id);
|
---|
[821] | 622 | filter.iif = idx;
|
---|
| 623 | filter.iifmask = -1;
|
---|
| 624 | }
|
---|
| 625 | if (od) {
|
---|
[1765] | 626 | idx = xll_name_to_index(od);
|
---|
[821] | 627 | filter.oif = idx;
|
---|
| 628 | filter.oifmask = -1;
|
---|
| 629 | }
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 | if (flush) {
|
---|
| 633 | char flushb[4096-512];
|
---|
| 634 |
|
---|
| 635 | if (filter.tb == -1) {
|
---|
| 636 | if (do_ipv6 != AF_INET6)
|
---|
| 637 | iproute_flush_cache();
|
---|
| 638 | if (do_ipv6 == AF_INET)
|
---|
| 639 | return 0;
|
---|
| 640 | }
|
---|
| 641 |
|
---|
| 642 | filter.flushb = flushb;
|
---|
| 643 | filter.flushp = 0;
|
---|
| 644 | filter.flushe = sizeof(flushb);
|
---|
| 645 | filter.rth = &rth;
|
---|
| 646 |
|
---|
| 647 | for (;;) {
|
---|
[1765] | 648 | xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
|
---|
[821] | 649 | filter.flushed = 0;
|
---|
[1765] | 650 | xrtnl_dump_filter(&rth, print_route, stdout);
|
---|
| 651 | if (filter.flushed == 0)
|
---|
[821] | 652 | return 0;
|
---|
[1765] | 653 | if (flush_update())
|
---|
| 654 | return 1;
|
---|
[821] | 655 | }
|
---|
| 656 | }
|
---|
| 657 |
|
---|
| 658 | if (filter.tb != -1) {
|
---|
[1765] | 659 | xrtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE);
|
---|
| 660 | } else if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
|
---|
| 661 | bb_perror_msg_and_die("cannot send dump request");
|
---|
[821] | 662 | }
|
---|
[1765] | 663 | xrtnl_dump_filter(&rth, print_route, stdout);
|
---|
[821] | 664 |
|
---|
[1765] | 665 | return 0;
|
---|
[821] | 666 | }
|
---|
| 667 |
|
---|
| 668 |
|
---|
[1765] | 669 | /* Return value becomes exitcode. It's okay to not return at all */
|
---|
[821] | 670 | static int iproute_get(int argc, char **argv)
|
---|
| 671 | {
|
---|
| 672 | struct rtnl_handle rth;
|
---|
| 673 | struct {
|
---|
[1765] | 674 | struct nlmsghdr n;
|
---|
| 675 | struct rtmsg r;
|
---|
| 676 | char buf[1024];
|
---|
[821] | 677 | } req;
|
---|
[1765] | 678 | char *idev = NULL;
|
---|
| 679 | char *odev = NULL;
|
---|
| 680 | bool connected = 0;
|
---|
| 681 | bool from_ok = 0;
|
---|
| 682 | static const char options[] ALIGN1 =
|
---|
| 683 | "from\0""iif\0""oif\0""dev\0""notify\0""connected\0""to\0";
|
---|
[821] | 684 |
|
---|
| 685 | memset(&req, 0, sizeof(req));
|
---|
| 686 |
|
---|
| 687 | iproute_reset_filter();
|
---|
| 688 |
|
---|
| 689 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
|
---|
| 690 | req.n.nlmsg_flags = NLM_F_REQUEST;
|
---|
| 691 | req.n.nlmsg_type = RTM_GETROUTE;
|
---|
| 692 | req.r.rtm_family = preferred_family;
|
---|
| 693 | req.r.rtm_table = 0;
|
---|
| 694 | req.r.rtm_protocol = 0;
|
---|
| 695 | req.r.rtm_scope = 0;
|
---|
| 696 | req.r.rtm_type = 0;
|
---|
| 697 | req.r.rtm_src_len = 0;
|
---|
| 698 | req.r.rtm_dst_len = 0;
|
---|
| 699 | req.r.rtm_tos = 0;
|
---|
| 700 |
|
---|
| 701 | while (argc > 0) {
|
---|
[1765] | 702 | switch (index_in_strings(options, *argv)) {
|
---|
[821] | 703 | case 0: /* from */
|
---|
| 704 | {
|
---|
| 705 | inet_prefix addr;
|
---|
| 706 | NEXT_ARG();
|
---|
| 707 | from_ok = 1;
|
---|
| 708 | get_prefix(&addr, *argv, req.r.rtm_family);
|
---|
| 709 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 710 | req.r.rtm_family = addr.family;
|
---|
| 711 | }
|
---|
| 712 | if (addr.bytelen) {
|
---|
| 713 | addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen);
|
---|
| 714 | }
|
---|
| 715 | req.r.rtm_src_len = addr.bitlen;
|
---|
| 716 | break;
|
---|
| 717 | }
|
---|
| 718 | case 1: /* iif */
|
---|
| 719 | NEXT_ARG();
|
---|
| 720 | idev = *argv;
|
---|
| 721 | break;
|
---|
| 722 | case 2: /* oif */
|
---|
| 723 | case 3: /* dev */
|
---|
| 724 | NEXT_ARG();
|
---|
| 725 | odev = *argv;
|
---|
| 726 | break;
|
---|
| 727 | case 4: /* notify */
|
---|
| 728 | req.r.rtm_flags |= RTM_F_NOTIFY;
|
---|
| 729 | break;
|
---|
| 730 | case 5: /* connected */
|
---|
| 731 | connected = 1;
|
---|
| 732 | break;
|
---|
| 733 | case 6: /* to */
|
---|
| 734 | NEXT_ARG();
|
---|
| 735 | default:
|
---|
| 736 | {
|
---|
| 737 | inet_prefix addr;
|
---|
| 738 | get_prefix(&addr, *argv, req.r.rtm_family);
|
---|
| 739 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 740 | req.r.rtm_family = addr.family;
|
---|
| 741 | }
|
---|
| 742 | if (addr.bytelen) {
|
---|
| 743 | addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen);
|
---|
| 744 | }
|
---|
| 745 | req.r.rtm_dst_len = addr.bitlen;
|
---|
| 746 | }
|
---|
| 747 | argc--; argv++;
|
---|
| 748 | }
|
---|
| 749 | }
|
---|
| 750 |
|
---|
| 751 | if (req.r.rtm_dst_len == 0) {
|
---|
| 752 | bb_error_msg_and_die("need at least destination address");
|
---|
| 753 | }
|
---|
| 754 |
|
---|
[1765] | 755 | xrtnl_open(&rth);
|
---|
[821] | 756 |
|
---|
| 757 | ll_init_map(&rth);
|
---|
| 758 |
|
---|
| 759 | if (idev || odev) {
|
---|
| 760 | int idx;
|
---|
| 761 |
|
---|
| 762 | if (idev) {
|
---|
[1765] | 763 | idx = xll_name_to_index(idev);
|
---|
[821] | 764 | addattr32(&req.n, sizeof(req), RTA_IIF, idx);
|
---|
| 765 | }
|
---|
| 766 | if (odev) {
|
---|
[1765] | 767 | idx = xll_name_to_index(odev);
|
---|
[821] | 768 | addattr32(&req.n, sizeof(req), RTA_OIF, idx);
|
---|
| 769 | }
|
---|
| 770 | }
|
---|
| 771 |
|
---|
| 772 | if (req.r.rtm_family == AF_UNSPEC) {
|
---|
| 773 | req.r.rtm_family = AF_INET;
|
---|
| 774 | }
|
---|
| 775 |
|
---|
| 776 | if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
|
---|
[1765] | 777 | return 2;
|
---|
[821] | 778 | }
|
---|
| 779 |
|
---|
| 780 | if (connected && !from_ok) {
|
---|
| 781 | struct rtmsg *r = NLMSG_DATA(&req.n);
|
---|
| 782 | int len = req.n.nlmsg_len;
|
---|
| 783 | struct rtattr * tb[RTA_MAX+1];
|
---|
| 784 |
|
---|
[1765] | 785 | print_route(NULL, &req.n, (void*)stdout);
|
---|
[821] | 786 |
|
---|
| 787 | if (req.n.nlmsg_type != RTM_NEWROUTE) {
|
---|
[1765] | 788 | bb_error_msg_and_die("not a route?");
|
---|
[821] | 789 | }
|
---|
| 790 | len -= NLMSG_LENGTH(sizeof(*r));
|
---|
| 791 | if (len < 0) {
|
---|
[1765] | 792 | bb_error_msg_and_die("wrong len %d", len);
|
---|
[821] | 793 | }
|
---|
| 794 |
|
---|
| 795 | memset(tb, 0, sizeof(tb));
|
---|
| 796 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
|
---|
| 797 |
|
---|
| 798 | if (tb[RTA_PREFSRC]) {
|
---|
| 799 | tb[RTA_PREFSRC]->rta_type = RTA_SRC;
|
---|
| 800 | r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
|
---|
| 801 | } else if (!tb[RTA_SRC]) {
|
---|
[1765] | 802 | bb_error_msg_and_die("failed to connect the route");
|
---|
[821] | 803 | }
|
---|
| 804 | if (!odev && tb[RTA_OIF]) {
|
---|
| 805 | tb[RTA_OIF]->rta_type = 0;
|
---|
| 806 | }
|
---|
| 807 | if (tb[RTA_GATEWAY]) {
|
---|
| 808 | tb[RTA_GATEWAY]->rta_type = 0;
|
---|
| 809 | }
|
---|
| 810 | if (!idev && tb[RTA_IIF]) {
|
---|
| 811 | tb[RTA_IIF]->rta_type = 0;
|
---|
| 812 | }
|
---|
| 813 | req.n.nlmsg_flags = NLM_F_REQUEST;
|
---|
| 814 | req.n.nlmsg_type = RTM_GETROUTE;
|
---|
| 815 |
|
---|
| 816 | if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
|
---|
[1765] | 817 | return 2;
|
---|
[821] | 818 | }
|
---|
| 819 | }
|
---|
[1765] | 820 | print_route(NULL, &req.n, (void*)stdout);
|
---|
| 821 | return 0;
|
---|
[821] | 822 | }
|
---|
| 823 |
|
---|
[1765] | 824 | /* Return value becomes exitcode. It's okay to not return at all */
|
---|
[821] | 825 | int do_iproute(int argc, char **argv)
|
---|
| 826 | {
|
---|
[1765] | 827 | static const char ip_route_commands[] ALIGN1 =
|
---|
| 828 | /*0-3*/ "add\0""append\0""change\0""chg\0"
|
---|
| 829 | /*4-7*/ "delete\0""get\0""list\0""show\0"
|
---|
| 830 | /*8..*/ "prepend\0""replace\0""test\0""flush\0";
|
---|
| 831 | int command_num = 6;
|
---|
| 832 | unsigned flags = 0;
|
---|
[821] | 833 | int cmd = RTM_NEWROUTE;
|
---|
| 834 |
|
---|
[1765] | 835 | /* "Standard" 'ip r a' treats 'a' as 'add', not 'append' */
|
---|
| 836 | /* It probably means that it is using "first match" rule */
|
---|
[821] | 837 | if (*argv) {
|
---|
[1765] | 838 | command_num = index_in_substrings(ip_route_commands, *argv);
|
---|
[821] | 839 | }
|
---|
[1765] | 840 | switch (command_num) {
|
---|
| 841 | case 0: /* add */
|
---|
[821] | 842 | flags = NLM_F_CREATE|NLM_F_EXCL;
|
---|
| 843 | break;
|
---|
| 844 | case 1: /* append */
|
---|
| 845 | flags = NLM_F_CREATE|NLM_F_APPEND;
|
---|
| 846 | break;
|
---|
| 847 | case 2: /* change */
|
---|
| 848 | case 3: /* chg */
|
---|
| 849 | flags = NLM_F_REPLACE;
|
---|
| 850 | break;
|
---|
| 851 | case 4: /* delete */
|
---|
| 852 | cmd = RTM_DELROUTE;
|
---|
| 853 | break;
|
---|
[1765] | 854 | case 5: /* get */
|
---|
[821] | 855 | return iproute_get(argc-1, argv+1);
|
---|
[1765] | 856 | case 6: /* list */
|
---|
| 857 | case 7: /* show */
|
---|
[821] | 858 | return iproute_list_or_flush(argc-1, argv+1, 0);
|
---|
[1765] | 859 | case 8: /* prepend */
|
---|
[821] | 860 | flags = NLM_F_CREATE;
|
---|
[1765] | 861 | case 9: /* replace */
|
---|
[821] | 862 | flags = NLM_F_CREATE|NLM_F_REPLACE;
|
---|
[1765] | 863 | case 10: /* test */
|
---|
[821] | 864 | flags = NLM_F_EXCL;
|
---|
[1765] | 865 | case 11: /* flush */
|
---|
[821] | 866 | return iproute_list_or_flush(argc-1, argv+1, 1);
|
---|
| 867 | default:
|
---|
[1765] | 868 | bb_error_msg_and_die("unknown command %s", *argv);
|
---|
[821] | 869 | }
|
---|
| 870 |
|
---|
| 871 | return iproute_modify(cmd, flags, argc-1, argv+1);
|
---|
| 872 | }
|
---|