osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * iproute.c "ip route". |
| 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: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| 10 | * |
| 11 | * |
| 12 | * Changes: |
| 13 | * |
| 14 | * Rani Assaf <rani@magic.metawire.com> 980929: resolve addresses |
| 15 | * Kunihiro Ishiguro <kunihiro@zebra.org> 001102: rtnh_ifindex was not initialized |
| 16 | */ |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <stdlib.h> |
| 20 | #include <unistd.h> |
| 21 | #include <syslog.h> |
| 22 | #include <fcntl.h> |
| 23 | #include <string.h> |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 24 | #include <time.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 25 | #include <sys/time.h> |
| 26 | #include <sys/socket.h> |
| 27 | #include <netinet/in.h> |
| 28 | #include <netinet/ip.h> |
| 29 | #include <arpa/inet.h> |
| 30 | #include <linux/in_route.h> |
| 31 | |
| 32 | #include "rt_names.h" |
| 33 | #include "utils.h" |
| 34 | #include "ip_common.h" |
| 35 | |
| 36 | #ifndef RTAX_RTTVAR |
| 37 | #define RTAX_RTTVAR RTAX_HOPS |
| 38 | #endif |
| 39 | |
| 40 | |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 41 | static const char *mx_names[RTAX_MAX+1] = { |
| 42 | [RTAX_MTU] = "mtu", |
| 43 | [RTAX_WINDOW] = "window", |
| 44 | [RTAX_RTT] = "rtt", |
| 45 | [RTAX_RTTVAR] = "rttvar", |
| 46 | [RTAX_SSTHRESH] = "ssthresh", |
| 47 | [RTAX_CWND] = "cwnd", |
| 48 | [RTAX_ADVMSS] = "advmss", |
| 49 | [RTAX_REORDERING]="reordering", |
| 50 | [RTAX_HOPLIMIT] = "hoplimit", |
| 51 | [RTAX_INITCWND] = "initcwnd", |
| 52 | [RTAX_FEATURES] = "features", |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 53 | [RTAX_RTO_MIN] = "rto_min", |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 54 | }; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 55 | static void usage(void) __attribute__((noreturn)); |
| 56 | |
| 57 | static void usage(void) |
| 58 | { |
| 59 | fprintf(stderr, "Usage: ip route { list | flush } SELECTOR\n"); |
| 60 | fprintf(stderr, " ip route get ADDRESS [ from ADDRESS iif STRING ]\n"); |
| 61 | fprintf(stderr, " [ oif STRING ] [ tos TOS ]\n"); |
| 62 | fprintf(stderr, " ip route { add | del | change | append | replace | monitor } ROUTE\n"); |
| 63 | fprintf(stderr, "SELECTOR := [ root PREFIX ] [ match PREFIX ] [ exact PREFIX ]\n"); |
| 64 | fprintf(stderr, " [ table TABLE_ID ] [ proto RTPROTO ]\n"); |
| 65 | fprintf(stderr, " [ type TYPE ] [ scope SCOPE ]\n"); |
| 66 | fprintf(stderr, "ROUTE := NODE_SPEC [ INFO_SPEC ]\n"); |
| 67 | fprintf(stderr, "NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ]\n"); |
| 68 | fprintf(stderr, " [ table TABLE_ID ] [ proto RTPROTO ]\n"); |
| 69 | fprintf(stderr, " [ scope SCOPE ] [ metric METRIC ]\n"); |
| 70 | fprintf(stderr, "INFO_SPEC := NH OPTIONS FLAGS [ nexthop NH ]...\n"); |
| 71 | fprintf(stderr, "NH := [ via ADDRESS ] [ dev STRING ] [ weight NUMBER ] NHFLAGS\n"); |
| 72 | fprintf(stderr, "OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ]\n"); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 73 | fprintf(stderr, " [ rtt TIME ] [ rttvar TIME ]\n"); |
Vince Worthington | a1f1143 | 2006-07-17 14:10:09 -0400 | [diff] [blame] | 74 | fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n"); |
Alexander Wirt | 576c63e | 2007-10-12 10:56:37 +0200 | [diff] [blame] | 75 | fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n"); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 76 | fprintf(stderr, " [ rto_min TIME ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 77 | fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n"); |
| 78 | fprintf(stderr, " unreachable | prohibit | blackhole | nat ]\n"); |
| 79 | fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n"); |
| 80 | fprintf(stderr, "SCOPE := [ host | link | global | NUMBER ]\n"); |
| 81 | fprintf(stderr, "FLAGS := [ equalize ]\n"); |
shemminger | 02d2ae5 | 2005-06-23 17:31:27 +0000 | [diff] [blame] | 82 | fprintf(stderr, "MP_ALGO := { rr | drr | random | wrandom }\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 83 | fprintf(stderr, "NHFLAGS := [ onlink | pervasive ]\n"); |
| 84 | fprintf(stderr, "RTPROTO := [ kernel | boot | static | NUMBER ]\n"); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 85 | fprintf(stderr, "TIME := NUMBER[s|ms|us|ns|j]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 86 | exit(-1); |
| 87 | } |
| 88 | |
| 89 | |
| 90 | static struct |
| 91 | { |
| 92 | int tb; |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 93 | int cloned; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 94 | int flushed; |
| 95 | char *flushb; |
| 96 | int flushp; |
| 97 | int flushe; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 98 | int protocol, protocolmask; |
| 99 | int scope, scopemask; |
| 100 | int type, typemask; |
| 101 | int tos, tosmask; |
| 102 | int iif, iifmask; |
| 103 | int oif, oifmask; |
| 104 | int realm, realmmask; |
| 105 | inet_prefix rprefsrc; |
| 106 | inet_prefix rvia; |
| 107 | inet_prefix rdst; |
| 108 | inet_prefix mdst; |
| 109 | inet_prefix rsrc; |
| 110 | inet_prefix msrc; |
| 111 | } filter; |
| 112 | |
| 113 | static int flush_update(void) |
| 114 | { |
Stephen Hemminger | f31a37f | 2008-01-31 21:38:58 -0800 | [diff] [blame] | 115 | if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) { |
Stephen Hemminger | 1fb0a99 | 2008-01-26 11:08:31 -0800 | [diff] [blame] | 116 | perror("Failed to send flush request"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 117 | return -1; |
| 118 | } |
| 119 | filter.flushp = 0; |
| 120 | return 0; |
| 121 | } |
| 122 | |
osdl.net!shemminger | 50772dc | 2004-12-07 21:48:29 +0000 | [diff] [blame] | 123 | int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 124 | { |
| 125 | FILE *fp = (FILE*)arg; |
| 126 | struct rtmsg *r = NLMSG_DATA(n); |
| 127 | int len = n->nlmsg_len; |
| 128 | struct rtattr * tb[RTA_MAX+1]; |
| 129 | char abuf[256]; |
| 130 | inet_prefix dst; |
| 131 | inet_prefix src; |
| 132 | inet_prefix prefsrc; |
| 133 | inet_prefix via; |
| 134 | int host_len = -1; |
Patrick McHardy | e0b29fe | 2006-08-10 22:42:58 +0200 | [diff] [blame] | 135 | static int ip6_multiple_tables; |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 136 | __u32 table; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 137 | SPRINT_BUF(b1); |
Stephen Hemminger | 6a79240 | 2006-10-26 08:47:00 -0700 | [diff] [blame] | 138 | static int hz; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 139 | |
| 140 | if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) { |
| 141 | fprintf(stderr, "Not a route: %08x %08x %08x\n", |
| 142 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 143 | return 0; |
| 144 | } |
| 145 | if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE) |
| 146 | return 0; |
| 147 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 148 | if (len < 0) { |
| 149 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 150 | return -1; |
| 151 | } |
| 152 | |
| 153 | if (r->rtm_family == AF_INET6) |
| 154 | host_len = 128; |
| 155 | else if (r->rtm_family == AF_INET) |
| 156 | host_len = 32; |
| 157 | else if (r->rtm_family == AF_DECnet) |
| 158 | host_len = 16; |
| 159 | else if (r->rtm_family == AF_IPX) |
| 160 | host_len = 80; |
| 161 | |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 162 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); |
| 163 | table = rtm_get_table(r, tb); |
| 164 | |
| 165 | if (r->rtm_family == AF_INET6 && table != RT_TABLE_MAIN) |
Patrick McHardy | e0b29fe | 2006-08-10 22:42:58 +0200 | [diff] [blame] | 166 | ip6_multiple_tables = 1; |
| 167 | |
| 168 | if (r->rtm_family == AF_INET6 && !ip6_multiple_tables) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 169 | if (filter.cloned) { |
| 170 | if (!(r->rtm_flags&RTM_F_CLONED)) |
| 171 | return 0; |
| 172 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 173 | if (filter.tb) { |
Sridhar Samudrala | 9ab4c85 | 2007-08-22 10:55:47 -0700 | [diff] [blame] | 174 | if (!filter.cloned && r->rtm_flags&RTM_F_CLONED) |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 175 | return 0; |
| 176 | if (filter.tb == RT_TABLE_LOCAL) { |
| 177 | if (r->rtm_type != RTN_LOCAL) |
| 178 | return 0; |
| 179 | } else if (filter.tb == RT_TABLE_MAIN) { |
| 180 | if (r->rtm_type == RTN_LOCAL) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 181 | return 0; |
| 182 | } else { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 183 | return 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 184 | } |
| 185 | } |
| 186 | } else { |
Sridhar Samudrala | 9ab4c85 | 2007-08-22 10:55:47 -0700 | [diff] [blame] | 187 | if (filter.cloned) { |
| 188 | if (!(r->rtm_flags&RTM_F_CLONED)) |
| 189 | return 0; |
| 190 | } |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 191 | if (filter.tb > 0 && filter.tb != table) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 192 | return 0; |
| 193 | } |
| 194 | if ((filter.protocol^r->rtm_protocol)&filter.protocolmask) |
| 195 | return 0; |
| 196 | if ((filter.scope^r->rtm_scope)&filter.scopemask) |
| 197 | return 0; |
| 198 | if ((filter.type^r->rtm_type)&filter.typemask) |
| 199 | return 0; |
| 200 | if ((filter.tos^r->rtm_tos)&filter.tosmask) |
| 201 | return 0; |
| 202 | if (filter.rdst.family && |
| 203 | (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) |
| 204 | return 0; |
| 205 | if (filter.mdst.family && |
| 206 | (r->rtm_family != filter.mdst.family || |
| 207 | (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) |
| 208 | return 0; |
| 209 | if (filter.rsrc.family && |
| 210 | (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) |
| 211 | return 0; |
| 212 | if (filter.msrc.family && |
| 213 | (r->rtm_family != filter.msrc.family || |
| 214 | (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) |
| 215 | return 0; |
| 216 | if (filter.rvia.family && r->rtm_family != filter.rvia.family) |
| 217 | return 0; |
| 218 | if (filter.rprefsrc.family && r->rtm_family != filter.rprefsrc.family) |
| 219 | return 0; |
| 220 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 221 | memset(&dst, 0, sizeof(dst)); |
| 222 | dst.family = r->rtm_family; |
| 223 | if (tb[RTA_DST]) |
| 224 | memcpy(&dst.data, RTA_DATA(tb[RTA_DST]), (r->rtm_dst_len+7)/8); |
| 225 | if (filter.rsrc.family || filter.msrc.family) { |
| 226 | memset(&src, 0, sizeof(src)); |
| 227 | src.family = r->rtm_family; |
| 228 | if (tb[RTA_SRC]) |
| 229 | memcpy(&src.data, RTA_DATA(tb[RTA_SRC]), (r->rtm_src_len+7)/8); |
| 230 | } |
| 231 | if (filter.rvia.bitlen>0) { |
| 232 | memset(&via, 0, sizeof(via)); |
| 233 | via.family = r->rtm_family; |
| 234 | if (tb[RTA_GATEWAY]) |
shemminger | 7849fb5 | 2005-10-12 22:49:50 +0000 | [diff] [blame] | 235 | memcpy(&via.data, RTA_DATA(tb[RTA_GATEWAY]), host_len/8); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 236 | } |
| 237 | if (filter.rprefsrc.bitlen>0) { |
| 238 | memset(&prefsrc, 0, sizeof(prefsrc)); |
| 239 | prefsrc.family = r->rtm_family; |
| 240 | if (tb[RTA_PREFSRC]) |
shemminger | 7849fb5 | 2005-10-12 22:49:50 +0000 | [diff] [blame] | 241 | memcpy(&prefsrc.data, RTA_DATA(tb[RTA_PREFSRC]), host_len/8); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | if (filter.rdst.family && inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen)) |
| 245 | return 0; |
| 246 | if (filter.mdst.family && filter.mdst.bitlen >= 0 && |
| 247 | inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len)) |
| 248 | return 0; |
| 249 | |
| 250 | if (filter.rsrc.family && inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen)) |
| 251 | return 0; |
| 252 | if (filter.msrc.family && filter.msrc.bitlen >= 0 && |
| 253 | inet_addr_match(&src, &filter.msrc, r->rtm_src_len)) |
| 254 | return 0; |
| 255 | |
| 256 | if (filter.rvia.family && inet_addr_match(&via, &filter.rvia, filter.rvia.bitlen)) |
| 257 | return 0; |
| 258 | if (filter.rprefsrc.family && inet_addr_match(&prefsrc, &filter.rprefsrc, filter.rprefsrc.bitlen)) |
| 259 | return 0; |
| 260 | if (filter.realmmask) { |
| 261 | __u32 realms = 0; |
| 262 | if (tb[RTA_FLOW]) |
| 263 | realms = *(__u32*)RTA_DATA(tb[RTA_FLOW]); |
| 264 | if ((realms^filter.realm)&filter.realmmask) |
| 265 | return 0; |
| 266 | } |
| 267 | if (filter.iifmask) { |
| 268 | int iif = 0; |
| 269 | if (tb[RTA_IIF]) |
| 270 | iif = *(int*)RTA_DATA(tb[RTA_IIF]); |
| 271 | if ((iif^filter.iif)&filter.iifmask) |
| 272 | return 0; |
| 273 | } |
| 274 | if (filter.oifmask) { |
| 275 | int oif = 0; |
| 276 | if (tb[RTA_OIF]) |
| 277 | oif = *(int*)RTA_DATA(tb[RTA_OIF]); |
| 278 | if ((oif^filter.oif)&filter.oifmask) |
| 279 | return 0; |
| 280 | } |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 281 | if (filter.flushb && |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 282 | r->rtm_family == AF_INET6 && |
| 283 | r->rtm_dst_len == 0 && |
| 284 | r->rtm_type == RTN_UNREACHABLE && |
| 285 | tb[RTA_PRIORITY] && |
| 286 | *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1) |
| 287 | return 0; |
| 288 | |
| 289 | if (filter.flushb) { |
| 290 | struct nlmsghdr *fn; |
| 291 | if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { |
| 292 | if (flush_update()) |
| 293 | return -1; |
| 294 | } |
| 295 | fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp)); |
| 296 | memcpy(fn, n, n->nlmsg_len); |
| 297 | fn->nlmsg_type = RTM_DELROUTE; |
| 298 | fn->nlmsg_flags = NLM_F_REQUEST; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 299 | fn->nlmsg_seq = ++rth.seq; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 300 | filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb; |
| 301 | filter.flushed++; |
| 302 | if (show_stats < 2) |
| 303 | return 0; |
| 304 | } |
| 305 | |
| 306 | if (n->nlmsg_type == RTM_DELROUTE) |
| 307 | fprintf(fp, "Deleted "); |
| 308 | if (r->rtm_type != RTN_UNICAST && !filter.type) |
| 309 | fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1))); |
| 310 | |
| 311 | if (tb[RTA_DST]) { |
| 312 | if (r->rtm_dst_len != host_len) { |
| 313 | fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family, |
| 314 | RTA_PAYLOAD(tb[RTA_DST]), |
| 315 | RTA_DATA(tb[RTA_DST]), |
| 316 | abuf, sizeof(abuf)), |
| 317 | r->rtm_dst_len |
| 318 | ); |
| 319 | } else { |
| 320 | fprintf(fp, "%s ", format_host(r->rtm_family, |
| 321 | RTA_PAYLOAD(tb[RTA_DST]), |
| 322 | RTA_DATA(tb[RTA_DST]), |
| 323 | abuf, sizeof(abuf)) |
| 324 | ); |
| 325 | } |
| 326 | } else if (r->rtm_dst_len) { |
| 327 | fprintf(fp, "0/%d ", r->rtm_dst_len); |
| 328 | } else { |
| 329 | fprintf(fp, "default "); |
| 330 | } |
| 331 | if (tb[RTA_SRC]) { |
| 332 | if (r->rtm_src_len != host_len) { |
| 333 | fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family, |
| 334 | RTA_PAYLOAD(tb[RTA_SRC]), |
| 335 | RTA_DATA(tb[RTA_SRC]), |
| 336 | abuf, sizeof(abuf)), |
| 337 | r->rtm_src_len |
| 338 | ); |
| 339 | } else { |
| 340 | fprintf(fp, "from %s ", format_host(r->rtm_family, |
| 341 | RTA_PAYLOAD(tb[RTA_SRC]), |
| 342 | RTA_DATA(tb[RTA_SRC]), |
| 343 | abuf, sizeof(abuf)) |
| 344 | ); |
| 345 | } |
| 346 | } else if (r->rtm_src_len) { |
| 347 | fprintf(fp, "from 0/%u ", r->rtm_src_len); |
| 348 | } |
| 349 | if (r->rtm_tos && filter.tosmask != -1) { |
| 350 | SPRINT_BUF(b1); |
| 351 | fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1))); |
| 352 | } |
shemminger | 02d2ae5 | 2005-06-23 17:31:27 +0000 | [diff] [blame] | 353 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 354 | if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) { |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 355 | fprintf(fp, "via %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 356 | format_host(r->rtm_family, |
| 357 | RTA_PAYLOAD(tb[RTA_GATEWAY]), |
| 358 | RTA_DATA(tb[RTA_GATEWAY]), |
| 359 | abuf, sizeof(abuf))); |
| 360 | } |
| 361 | if (tb[RTA_OIF] && filter.oifmask != -1) |
| 362 | fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF]))); |
| 363 | |
| 364 | if (!(r->rtm_flags&RTM_F_CLONED)) { |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 365 | if (table != RT_TABLE_MAIN && !filter.tb) |
| 366 | fprintf(fp, " table %s ", rtnl_rttable_n2a(table, b1, sizeof(b1))); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 367 | if (r->rtm_protocol != RTPROT_BOOT && filter.protocolmask != -1) |
| 368 | fprintf(fp, " proto %s ", rtnl_rtprot_n2a(r->rtm_protocol, b1, sizeof(b1))); |
| 369 | if (r->rtm_scope != RT_SCOPE_UNIVERSE && filter.scopemask != -1) |
| 370 | fprintf(fp, " scope %s ", rtnl_rtscope_n2a(r->rtm_scope, b1, sizeof(b1))); |
| 371 | } |
| 372 | if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { |
| 373 | /* Do not use format_host(). It is our local addr |
| 374 | and symbolic name will not be useful. |
| 375 | */ |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 376 | fprintf(fp, " src %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 377 | rt_addr_n2a(r->rtm_family, |
| 378 | RTA_PAYLOAD(tb[RTA_PREFSRC]), |
| 379 | RTA_DATA(tb[RTA_PREFSRC]), |
| 380 | abuf, sizeof(abuf))); |
| 381 | } |
| 382 | if (tb[RTA_PRIORITY]) |
| 383 | fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY])); |
| 384 | if (r->rtm_flags & RTNH_F_DEAD) |
| 385 | fprintf(fp, "dead "); |
| 386 | if (r->rtm_flags & RTNH_F_ONLINK) |
| 387 | fprintf(fp, "onlink "); |
| 388 | if (r->rtm_flags & RTNH_F_PERVASIVE) |
| 389 | fprintf(fp, "pervasive "); |
| 390 | if (r->rtm_flags & RTM_F_EQUALIZE) |
| 391 | fprintf(fp, "equalize "); |
| 392 | if (r->rtm_flags & RTM_F_NOTIFY) |
| 393 | fprintf(fp, "notify "); |
| 394 | |
| 395 | if (tb[RTA_FLOW] && filter.realmmask != ~0U) { |
| 396 | __u32 to = *(__u32*)RTA_DATA(tb[RTA_FLOW]); |
| 397 | __u32 from = to>>16; |
| 398 | to &= 0xFFFF; |
| 399 | fprintf(fp, "realm%s ", from ? "s" : ""); |
| 400 | if (from) { |
| 401 | fprintf(fp, "%s/", |
| 402 | rtnl_rtrealm_n2a(from, b1, sizeof(b1))); |
| 403 | } |
| 404 | fprintf(fp, "%s ", |
| 405 | rtnl_rtrealm_n2a(to, b1, sizeof(b1))); |
| 406 | } |
| 407 | if ((r->rtm_flags&RTM_F_CLONED) && r->rtm_family == AF_INET) { |
| 408 | __u32 flags = r->rtm_flags&~0xFFFF; |
| 409 | int first = 1; |
| 410 | |
| 411 | fprintf(fp, "%s cache ", _SL_); |
| 412 | |
| 413 | #define PRTFL(fl,flname) if (flags&RTCF_##fl) { \ |
| 414 | flags &= ~RTCF_##fl; \ |
| 415 | fprintf(fp, "%s" flname "%s", first ? "<" : "", flags ? "," : "> "); \ |
| 416 | first = 0; } |
| 417 | PRTFL(LOCAL, "local"); |
| 418 | PRTFL(REJECT, "reject"); |
| 419 | PRTFL(MULTICAST, "mc"); |
| 420 | PRTFL(BROADCAST, "brd"); |
| 421 | PRTFL(DNAT, "dst-nat"); |
| 422 | PRTFL(SNAT, "src-nat"); |
| 423 | PRTFL(MASQ, "masq"); |
| 424 | PRTFL(DIRECTDST, "dst-direct"); |
| 425 | PRTFL(DIRECTSRC, "src-direct"); |
| 426 | PRTFL(REDIRECTED, "redirected"); |
| 427 | PRTFL(DOREDIRECT, "redirect"); |
| 428 | PRTFL(FAST, "fastroute"); |
| 429 | PRTFL(NOTIFY, "notify"); |
| 430 | PRTFL(TPROXY, "proxy"); |
| 431 | #ifdef RTCF_EQUALIZE |
| 432 | PRTFL(EQUALIZE, "equalize"); |
| 433 | #endif |
| 434 | if (flags) |
| 435 | fprintf(fp, "%s%x> ", first ? "<" : "", flags); |
| 436 | if (tb[RTA_CACHEINFO]) { |
| 437 | struct rta_cacheinfo *ci = RTA_DATA(tb[RTA_CACHEINFO]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 438 | if (!hz) |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 439 | hz = get_user_hz(); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 440 | if (ci->rta_expires != 0) |
| 441 | fprintf(fp, " expires %dsec", ci->rta_expires/hz); |
| 442 | if (ci->rta_error != 0) |
| 443 | fprintf(fp, " error %d", ci->rta_error); |
| 444 | if (show_stats) { |
| 445 | if (ci->rta_clntref) |
| 446 | fprintf(fp, " users %d", ci->rta_clntref); |
| 447 | if (ci->rta_used != 0) |
| 448 | fprintf(fp, " used %d", ci->rta_used); |
| 449 | if (ci->rta_lastuse != 0) |
| 450 | fprintf(fp, " age %dsec", ci->rta_lastuse/hz); |
| 451 | } |
| 452 | #ifdef RTNETLINK_HAVE_PEERINFO |
| 453 | if (ci->rta_id) |
| 454 | fprintf(fp, " ipid 0x%04x", ci->rta_id); |
| 455 | if (ci->rta_ts || ci->rta_tsage) |
| 456 | fprintf(fp, " ts 0x%x tsage %dsec", ci->rta_ts, ci->rta_tsage); |
| 457 | #endif |
| 458 | } |
| 459 | } else if (r->rtm_family == AF_INET6) { |
| 460 | struct rta_cacheinfo *ci = NULL; |
| 461 | if (tb[RTA_CACHEINFO]) |
| 462 | ci = RTA_DATA(tb[RTA_CACHEINFO]); |
| 463 | if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 464 | if (!hz) |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 465 | hz = get_user_hz(); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 466 | if (r->rtm_flags & RTM_F_CLONED) |
| 467 | fprintf(fp, "%s cache ", _SL_); |
| 468 | if (ci->rta_expires) |
| 469 | fprintf(fp, " expires %dsec", ci->rta_expires/hz); |
| 470 | if (ci->rta_error != 0) |
| 471 | fprintf(fp, " error %d", ci->rta_error); |
| 472 | if (show_stats) { |
| 473 | if (ci->rta_clntref) |
| 474 | fprintf(fp, " users %d", ci->rta_clntref); |
| 475 | if (ci->rta_used != 0) |
| 476 | fprintf(fp, " used %d", ci->rta_used); |
| 477 | if (ci->rta_lastuse != 0) |
| 478 | fprintf(fp, " age %dsec", ci->rta_lastuse/hz); |
| 479 | } |
| 480 | } else if (ci) { |
| 481 | if (ci->rta_error != 0) |
| 482 | fprintf(fp, " error %d", ci->rta_error); |
| 483 | } |
| 484 | } |
| 485 | if (tb[RTA_METRICS]) { |
| 486 | int i; |
| 487 | unsigned mxlock = 0; |
| 488 | struct rtattr *mxrta[RTAX_MAX+1]; |
| 489 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 490 | parse_rtattr(mxrta, RTAX_MAX, RTA_DATA(tb[RTA_METRICS]), |
| 491 | RTA_PAYLOAD(tb[RTA_METRICS])); |
| 492 | if (mxrta[RTAX_LOCK]) |
| 493 | mxlock = *(unsigned*)RTA_DATA(mxrta[RTAX_LOCK]); |
| 494 | |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 495 | for (i=2; i<= RTAX_MAX; i++) { |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 496 | unsigned val; |
| 497 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 498 | if (mxrta[i] == NULL) |
| 499 | continue; |
| 500 | if (!hz) |
| 501 | hz = get_hz(); |
Stephen Hemminger | 6a79240 | 2006-10-26 08:47:00 -0700 | [diff] [blame] | 502 | |
| 503 | if (i < sizeof(mx_names)/sizeof(char*) && mx_names[i]) |
| 504 | fprintf(fp, " %s", mx_names[i]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 505 | else |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 506 | fprintf(fp, " metric %d", i); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 507 | if (mxlock & (1<<i)) |
| 508 | fprintf(fp, " lock"); |
| 509 | |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 510 | val = *(unsigned*)RTA_DATA(mxrta[i]); |
| 511 | switch (i) { |
| 512 | case RTAX_HOPLIMIT: |
| 513 | if ((long)val == -1) |
| 514 | val = 0; |
| 515 | /* fall through */ |
| 516 | default: |
| 517 | fprintf(fp, " %u", val); |
| 518 | break; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 519 | |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 520 | case RTAX_RTT: |
| 521 | case RTAX_RTTVAR: |
| 522 | case RTAX_RTO_MIN: |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 523 | val *= 1000; |
| 524 | if (i == RTAX_RTT) |
| 525 | val /= 8; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 526 | else if (i == RTAX_RTTVAR) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 527 | val /= 4; |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 528 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 529 | if (val >= hz) |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 530 | fprintf(fp, " %llums", |
| 531 | (unsigned long long) val / hz); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 532 | else |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame^] | 533 | fprintf(fp, " %.2fms", |
| 534 | (double)val / hz); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 535 | } |
| 536 | } |
| 537 | } |
| 538 | if (tb[RTA_IIF] && filter.iifmask != -1) { |
| 539 | fprintf(fp, " iif %s", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_IIF]))); |
| 540 | } |
| 541 | if (tb[RTA_MULTIPATH]) { |
| 542 | struct rtnexthop *nh = RTA_DATA(tb[RTA_MULTIPATH]); |
| 543 | int first = 0; |
| 544 | |
| 545 | len = RTA_PAYLOAD(tb[RTA_MULTIPATH]); |
| 546 | |
| 547 | for (;;) { |
| 548 | if (len < sizeof(*nh)) |
| 549 | break; |
| 550 | if (nh->rtnh_len > len) |
| 551 | break; |
| 552 | if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) { |
| 553 | if (first) |
| 554 | fprintf(fp, " Oifs:"); |
| 555 | else |
| 556 | fprintf(fp, " "); |
| 557 | } else |
| 558 | fprintf(fp, "%s\tnexthop", _SL_); |
| 559 | if (nh->rtnh_len > sizeof(*nh)) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 560 | parse_rtattr(tb, RTA_MAX, RTNH_DATA(nh), nh->rtnh_len - sizeof(*nh)); |
| 561 | if (tb[RTA_GATEWAY]) { |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 562 | fprintf(fp, " via %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 563 | format_host(r->rtm_family, |
| 564 | RTA_PAYLOAD(tb[RTA_GATEWAY]), |
| 565 | RTA_DATA(tb[RTA_GATEWAY]), |
| 566 | abuf, sizeof(abuf))); |
| 567 | } |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 568 | if (tb[RTA_FLOW]) { |
| 569 | __u32 to = *(__u32*)RTA_DATA(tb[RTA_FLOW]); |
| 570 | __u32 from = to>>16; |
| 571 | to &= 0xFFFF; |
| 572 | fprintf(fp, " realm%s ", from ? "s" : ""); |
| 573 | if (from) { |
| 574 | fprintf(fp, "%s/", |
| 575 | rtnl_rtrealm_n2a(from, b1, sizeof(b1))); |
| 576 | } |
| 577 | fprintf(fp, "%s", |
| 578 | rtnl_rtrealm_n2a(to, b1, sizeof(b1))); |
| 579 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 580 | } |
| 581 | if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) { |
| 582 | fprintf(fp, " %s", ll_index_to_name(nh->rtnh_ifindex)); |
| 583 | if (nh->rtnh_hops != 1) |
| 584 | fprintf(fp, "(ttl>%d)", nh->rtnh_hops); |
| 585 | } else { |
| 586 | fprintf(fp, " dev %s", ll_index_to_name(nh->rtnh_ifindex)); |
| 587 | fprintf(fp, " weight %d", nh->rtnh_hops+1); |
| 588 | } |
| 589 | if (nh->rtnh_flags & RTNH_F_DEAD) |
| 590 | fprintf(fp, " dead"); |
| 591 | if (nh->rtnh_flags & RTNH_F_ONLINK) |
| 592 | fprintf(fp, " onlink"); |
| 593 | if (nh->rtnh_flags & RTNH_F_PERVASIVE) |
| 594 | fprintf(fp, " pervasive"); |
| 595 | len -= NLMSG_ALIGN(nh->rtnh_len); |
| 596 | nh = RTNH_NEXT(nh); |
| 597 | } |
| 598 | } |
| 599 | fprintf(fp, "\n"); |
| 600 | fflush(fp); |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | |
| 605 | int parse_one_nh(struct rtattr *rta, struct rtnexthop *rtnh, int *argcp, char ***argvp) |
| 606 | { |
| 607 | int argc = *argcp; |
| 608 | char **argv = *argvp; |
| 609 | |
| 610 | while (++argv, --argc > 0) { |
| 611 | if (strcmp(*argv, "via") == 0) { |
| 612 | NEXT_ARG(); |
| 613 | rta_addattr32(rta, 4096, RTA_GATEWAY, get_addr32(*argv)); |
| 614 | rtnh->rtnh_len += sizeof(struct rtattr) + 4; |
| 615 | } else if (strcmp(*argv, "dev") == 0) { |
| 616 | NEXT_ARG(); |
| 617 | if ((rtnh->rtnh_ifindex = ll_name_to_index(*argv)) == 0) { |
| 618 | fprintf(stderr, "Cannot find device \"%s\"\n", *argv); |
| 619 | exit(1); |
| 620 | } |
| 621 | } else if (strcmp(*argv, "weight") == 0) { |
| 622 | unsigned w; |
| 623 | NEXT_ARG(); |
| 624 | if (get_unsigned(&w, *argv, 0) || w == 0 || w > 256) |
| 625 | invarg("\"weight\" is invalid\n", *argv); |
| 626 | rtnh->rtnh_hops = w - 1; |
| 627 | } else if (strcmp(*argv, "onlink") == 0) { |
| 628 | rtnh->rtnh_flags |= RTNH_F_ONLINK; |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 629 | } else if (matches(*argv, "realms") == 0) { |
| 630 | __u32 realm; |
| 631 | NEXT_ARG(); |
| 632 | if (get_rt_realms(&realm, *argv)) |
| 633 | invarg("\"realm\" value is invalid\n", *argv); |
| 634 | rta_addattr32(rta, 4096, RTA_FLOW, realm); |
| 635 | rtnh->rtnh_len += sizeof(struct rtattr) + 4; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 636 | } else |
| 637 | break; |
| 638 | } |
| 639 | *argcp = argc; |
| 640 | *argvp = argv; |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | int parse_nexthops(struct nlmsghdr *n, struct rtmsg *r, int argc, char **argv) |
| 645 | { |
| 646 | char buf[1024]; |
| 647 | struct rtattr *rta = (void*)buf; |
| 648 | struct rtnexthop *rtnh; |
| 649 | |
| 650 | rta->rta_type = RTA_MULTIPATH; |
| 651 | rta->rta_len = RTA_LENGTH(0); |
| 652 | rtnh = RTA_DATA(rta); |
| 653 | |
| 654 | while (argc > 0) { |
| 655 | if (strcmp(*argv, "nexthop") != 0) { |
| 656 | fprintf(stderr, "Error: \"nexthop\" or end of line is expected instead of \"%s\"\n", *argv); |
| 657 | exit(-1); |
| 658 | } |
| 659 | if (argc <= 1) { |
| 660 | fprintf(stderr, "Error: unexpected end of line after \"nexthop\"\n"); |
| 661 | exit(-1); |
| 662 | } |
| 663 | memset(rtnh, 0, sizeof(*rtnh)); |
| 664 | rtnh->rtnh_len = sizeof(*rtnh); |
| 665 | rta->rta_len += rtnh->rtnh_len; |
| 666 | parse_one_nh(rta, rtnh, &argc, &argv); |
| 667 | rtnh = RTNH_NEXT(rtnh); |
| 668 | } |
| 669 | |
| 670 | if (rta->rta_len > RTA_LENGTH(0)) |
| 671 | addattr_l(n, 1024, RTA_MULTIPATH, RTA_DATA(rta), RTA_PAYLOAD(rta)); |
| 672 | return 0; |
| 673 | } |
| 674 | |
| 675 | |
| 676 | int iproute_modify(int cmd, unsigned flags, int argc, char **argv) |
| 677 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 678 | struct { |
| 679 | struct nlmsghdr n; |
| 680 | struct rtmsg r; |
| 681 | char buf[1024]; |
| 682 | } req; |
| 683 | char mxbuf[256]; |
| 684 | struct rtattr * mxrta = (void*)mxbuf; |
| 685 | unsigned mxlock = 0; |
| 686 | char *d = NULL; |
| 687 | int gw_ok = 0; |
| 688 | int dst_ok = 0; |
| 689 | int nhs_ok = 0; |
| 690 | int scope_ok = 0; |
| 691 | int table_ok = 0; |
| 692 | int proto_ok = 0; |
| 693 | int type_ok = 0; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 694 | int raw = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 695 | |
| 696 | memset(&req, 0, sizeof(req)); |
| 697 | |
| 698 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)); |
| 699 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; |
| 700 | req.n.nlmsg_type = cmd; |
| 701 | req.r.rtm_family = preferred_family; |
| 702 | req.r.rtm_table = RT_TABLE_MAIN; |
| 703 | req.r.rtm_scope = RT_SCOPE_NOWHERE; |
| 704 | |
| 705 | if (cmd != RTM_DELROUTE) { |
| 706 | req.r.rtm_protocol = RTPROT_BOOT; |
| 707 | req.r.rtm_scope = RT_SCOPE_UNIVERSE; |
| 708 | req.r.rtm_type = RTN_UNICAST; |
| 709 | } |
| 710 | |
| 711 | mxrta->rta_type = RTA_METRICS; |
| 712 | mxrta->rta_len = RTA_LENGTH(0); |
| 713 | |
| 714 | while (argc > 0) { |
| 715 | if (strcmp(*argv, "src") == 0) { |
| 716 | inet_prefix addr; |
| 717 | NEXT_ARG(); |
| 718 | get_addr(&addr, *argv, req.r.rtm_family); |
| 719 | if (req.r.rtm_family == AF_UNSPEC) |
| 720 | req.r.rtm_family = addr.family; |
| 721 | addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen); |
| 722 | } else if (strcmp(*argv, "via") == 0) { |
| 723 | inet_prefix addr; |
| 724 | gw_ok = 1; |
| 725 | NEXT_ARG(); |
| 726 | get_addr(&addr, *argv, req.r.rtm_family); |
| 727 | if (req.r.rtm_family == AF_UNSPEC) |
| 728 | req.r.rtm_family = addr.family; |
| 729 | addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen); |
| 730 | } else if (strcmp(*argv, "from") == 0) { |
| 731 | inet_prefix addr; |
| 732 | NEXT_ARG(); |
| 733 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 734 | if (req.r.rtm_family == AF_UNSPEC) |
| 735 | req.r.rtm_family = addr.family; |
| 736 | if (addr.bytelen) |
| 737 | addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen); |
| 738 | req.r.rtm_src_len = addr.bitlen; |
| 739 | } else if (strcmp(*argv, "tos") == 0 || |
| 740 | matches(*argv, "dsfield") == 0) { |
| 741 | __u32 tos; |
| 742 | NEXT_ARG(); |
| 743 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 744 | invarg("\"tos\" value is invalid\n", *argv); |
| 745 | req.r.rtm_tos = tos; |
| 746 | } else if (matches(*argv, "metric") == 0 || |
| 747 | matches(*argv, "priority") == 0 || |
| 748 | matches(*argv, "preference") == 0) { |
| 749 | __u32 metric; |
| 750 | NEXT_ARG(); |
| 751 | if (get_u32(&metric, *argv, 0)) |
| 752 | invarg("\"metric\" value is invalid\n", *argv); |
| 753 | addattr32(&req.n, sizeof(req), RTA_PRIORITY, metric); |
| 754 | } else if (strcmp(*argv, "scope") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 755 | __u32 scope = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 756 | NEXT_ARG(); |
| 757 | if (rtnl_rtscope_a2n(&scope, *argv)) |
| 758 | invarg("invalid \"scope\" value\n", *argv); |
| 759 | req.r.rtm_scope = scope; |
| 760 | scope_ok = 1; |
| 761 | } else if (strcmp(*argv, "mtu") == 0) { |
| 762 | unsigned mtu; |
| 763 | NEXT_ARG(); |
| 764 | if (strcmp(*argv, "lock") == 0) { |
| 765 | mxlock |= (1<<RTAX_MTU); |
| 766 | NEXT_ARG(); |
| 767 | } |
| 768 | if (get_unsigned(&mtu, *argv, 0)) |
| 769 | invarg("\"mtu\" value is invalid\n", *argv); |
| 770 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); |
| 771 | #ifdef RTAX_ADVMSS |
| 772 | } else if (strcmp(*argv, "advmss") == 0) { |
| 773 | unsigned mss; |
| 774 | NEXT_ARG(); |
| 775 | if (strcmp(*argv, "lock") == 0) { |
| 776 | mxlock |= (1<<RTAX_ADVMSS); |
| 777 | NEXT_ARG(); |
| 778 | } |
| 779 | if (get_unsigned(&mss, *argv, 0)) |
| 780 | invarg("\"mss\" value is invalid\n", *argv); |
| 781 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss); |
| 782 | #endif |
| 783 | #ifdef RTAX_REORDERING |
| 784 | } else if (matches(*argv, "reordering") == 0) { |
| 785 | unsigned reord; |
| 786 | NEXT_ARG(); |
| 787 | if (strcmp(*argv, "lock") == 0) { |
| 788 | mxlock |= (1<<RTAX_REORDERING); |
| 789 | NEXT_ARG(); |
| 790 | } |
| 791 | if (get_unsigned(&reord, *argv, 0)) |
| 792 | invarg("\"reordering\" value is invalid\n", *argv); |
| 793 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_REORDERING, reord); |
| 794 | #endif |
| 795 | } else if (strcmp(*argv, "rtt") == 0) { |
| 796 | unsigned rtt; |
| 797 | NEXT_ARG(); |
| 798 | if (strcmp(*argv, "lock") == 0) { |
| 799 | mxlock |= (1<<RTAX_RTT); |
| 800 | NEXT_ARG(); |
| 801 | } |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 802 | if (get_jiffies(&rtt, *argv, 0, &raw)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 803 | invarg("\"rtt\" value is invalid\n", *argv); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 804 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTT, |
| 805 | (raw) ? rtt : rtt * 8); |
| 806 | } else if (strcmp(*argv, "rto_min") == 0) { |
| 807 | unsigned rto_min; |
| 808 | NEXT_ARG(); |
| 809 | mxlock |= (1<<RTAX_RTO_MIN); |
| 810 | if (get_jiffies(&rto_min, *argv, 0, &raw)) |
| 811 | invarg("\"rto_min\" value is invalid\n", |
| 812 | *argv); |
| 813 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTO_MIN, |
| 814 | rto_min); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 815 | } else if (matches(*argv, "window") == 0) { |
| 816 | unsigned win; |
| 817 | NEXT_ARG(); |
| 818 | if (strcmp(*argv, "lock") == 0) { |
| 819 | mxlock |= (1<<RTAX_WINDOW); |
| 820 | NEXT_ARG(); |
| 821 | } |
| 822 | if (get_unsigned(&win, *argv, 0)) |
| 823 | invarg("\"window\" value is invalid\n", *argv); |
| 824 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_WINDOW, win); |
| 825 | } else if (matches(*argv, "cwnd") == 0) { |
| 826 | unsigned win; |
| 827 | NEXT_ARG(); |
| 828 | if (strcmp(*argv, "lock") == 0) { |
| 829 | mxlock |= (1<<RTAX_CWND); |
| 830 | NEXT_ARG(); |
| 831 | } |
| 832 | if (get_unsigned(&win, *argv, 0)) |
| 833 | invarg("\"cwnd\" value is invalid\n", *argv); |
| 834 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_CWND, win); |
Vince Worthington | a1f1143 | 2006-07-17 14:10:09 -0400 | [diff] [blame] | 835 | } else if (matches(*argv, "initcwnd") == 0) { |
| 836 | unsigned win; |
| 837 | NEXT_ARG(); |
| 838 | if (strcmp(*argv, "lock") == 0) { |
| 839 | mxlock |= (1<<RTAX_INITCWND); |
| 840 | NEXT_ARG(); |
| 841 | } |
| 842 | if (get_unsigned(&win, *argv, 0)) |
| 843 | invarg("\"initcwnd\" value is invalid\n", *argv); |
| 844 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITCWND, win); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 845 | } else if (matches(*argv, "rttvar") == 0) { |
| 846 | unsigned win; |
| 847 | NEXT_ARG(); |
| 848 | if (strcmp(*argv, "lock") == 0) { |
| 849 | mxlock |= (1<<RTAX_RTTVAR); |
| 850 | NEXT_ARG(); |
| 851 | } |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 852 | if (get_jiffies(&win, *argv, 0, &raw)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 853 | invarg("\"rttvar\" value is invalid\n", *argv); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 854 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTTVAR, |
| 855 | (raw) ? win : win * 4); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 856 | } else if (matches(*argv, "ssthresh") == 0) { |
| 857 | unsigned win; |
| 858 | NEXT_ARG(); |
| 859 | if (strcmp(*argv, "lock") == 0) { |
| 860 | mxlock |= (1<<RTAX_SSTHRESH); |
| 861 | NEXT_ARG(); |
| 862 | } |
| 863 | if (get_unsigned(&win, *argv, 0)) |
| 864 | invarg("\"ssthresh\" value is invalid\n", *argv); |
| 865 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_SSTHRESH, win); |
| 866 | } else if (matches(*argv, "realms") == 0) { |
| 867 | __u32 realm; |
| 868 | NEXT_ARG(); |
| 869 | if (get_rt_realms(&realm, *argv)) |
| 870 | invarg("\"realm\" value is invalid\n", *argv); |
| 871 | addattr32(&req.n, sizeof(req), RTA_FLOW, realm); |
| 872 | } else if (strcmp(*argv, "onlink") == 0) { |
| 873 | req.r.rtm_flags |= RTNH_F_ONLINK; |
| 874 | } else if (matches(*argv, "equalize") == 0 || |
| 875 | strcmp(*argv, "eql") == 0) { |
| 876 | req.r.rtm_flags |= RTM_F_EQUALIZE; |
| 877 | } else if (strcmp(*argv, "nexthop") == 0) { |
| 878 | nhs_ok = 1; |
| 879 | break; |
| 880 | } else if (matches(*argv, "protocol") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 881 | __u32 prot; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 882 | NEXT_ARG(); |
| 883 | if (rtnl_rtprot_a2n(&prot, *argv)) |
| 884 | invarg("\"protocol\" value is invalid\n", *argv); |
| 885 | req.r.rtm_protocol = prot; |
| 886 | proto_ok =1; |
| 887 | } else if (matches(*argv, "table") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 888 | __u32 tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 889 | NEXT_ARG(); |
| 890 | if (rtnl_rttable_a2n(&tid, *argv)) |
| 891 | invarg("\"table\" value is invalid\n", *argv); |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 892 | if (tid < 256) |
| 893 | req.r.rtm_table = tid; |
| 894 | else { |
| 895 | req.r.rtm_table = RT_TABLE_UNSPEC; |
| 896 | addattr32(&req.n, sizeof(req), RTA_TABLE, tid); |
| 897 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 898 | table_ok = 1; |
| 899 | } else if (strcmp(*argv, "dev") == 0 || |
| 900 | strcmp(*argv, "oif") == 0) { |
| 901 | NEXT_ARG(); |
| 902 | d = *argv; |
| 903 | } else { |
| 904 | int type; |
| 905 | inet_prefix dst; |
| 906 | |
| 907 | if (strcmp(*argv, "to") == 0) { |
| 908 | NEXT_ARG(); |
| 909 | } |
| 910 | if ((**argv < '0' || **argv > '9') && |
| 911 | rtnl_rtntype_a2n(&type, *argv) == 0) { |
| 912 | NEXT_ARG(); |
| 913 | req.r.rtm_type = type; |
| 914 | type_ok = 1; |
| 915 | } |
| 916 | |
| 917 | if (matches(*argv, "help") == 0) |
| 918 | usage(); |
| 919 | if (dst_ok) |
| 920 | duparg2("to", *argv); |
| 921 | get_prefix(&dst, *argv, req.r.rtm_family); |
| 922 | if (req.r.rtm_family == AF_UNSPEC) |
| 923 | req.r.rtm_family = dst.family; |
| 924 | req.r.rtm_dst_len = dst.bitlen; |
| 925 | dst_ok = 1; |
| 926 | if (dst.bytelen) |
| 927 | addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen); |
| 928 | } |
| 929 | argc--; argv++; |
| 930 | } |
| 931 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 932 | if (d || nhs_ok) { |
| 933 | int idx; |
| 934 | |
| 935 | ll_init_map(&rth); |
| 936 | |
| 937 | if (d) { |
| 938 | if ((idx = ll_name_to_index(d)) == 0) { |
| 939 | fprintf(stderr, "Cannot find device \"%s\"\n", d); |
| 940 | return -1; |
| 941 | } |
| 942 | addattr32(&req.n, sizeof(req), RTA_OIF, idx); |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | if (mxrta->rta_len > RTA_LENGTH(0)) { |
| 947 | if (mxlock) |
| 948 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock); |
| 949 | addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); |
| 950 | } |
| 951 | |
| 952 | if (nhs_ok) |
| 953 | parse_nexthops(&req.n, &req.r, argc, argv); |
| 954 | |
| 955 | if (!table_ok) { |
| 956 | if (req.r.rtm_type == RTN_LOCAL || |
| 957 | req.r.rtm_type == RTN_BROADCAST || |
| 958 | req.r.rtm_type == RTN_NAT || |
| 959 | req.r.rtm_type == RTN_ANYCAST) |
| 960 | req.r.rtm_table = RT_TABLE_LOCAL; |
| 961 | } |
| 962 | if (!scope_ok) { |
| 963 | if (req.r.rtm_type == RTN_LOCAL || |
| 964 | req.r.rtm_type == RTN_NAT) |
| 965 | req.r.rtm_scope = RT_SCOPE_HOST; |
| 966 | else if (req.r.rtm_type == RTN_BROADCAST || |
| 967 | req.r.rtm_type == RTN_MULTICAST || |
| 968 | req.r.rtm_type == RTN_ANYCAST) |
| 969 | req.r.rtm_scope = RT_SCOPE_LINK; |
| 970 | else if (req.r.rtm_type == RTN_UNICAST || |
| 971 | req.r.rtm_type == RTN_UNSPEC) { |
| 972 | if (cmd == RTM_DELROUTE) |
| 973 | req.r.rtm_scope = RT_SCOPE_NOWHERE; |
| 974 | else if (!gw_ok && !nhs_ok) |
| 975 | req.r.rtm_scope = RT_SCOPE_LINK; |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | if (req.r.rtm_family == AF_UNSPEC) |
| 980 | req.r.rtm_family = AF_INET; |
| 981 | |
| 982 | if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) |
| 983 | exit(2); |
| 984 | |
| 985 | return 0; |
| 986 | } |
| 987 | |
| 988 | static int rtnl_rtcache_request(struct rtnl_handle *rth, int family) |
| 989 | { |
| 990 | struct { |
| 991 | struct nlmsghdr nlh; |
| 992 | struct rtmsg rtm; |
| 993 | } req; |
| 994 | struct sockaddr_nl nladdr; |
| 995 | |
| 996 | memset(&nladdr, 0, sizeof(nladdr)); |
| 997 | memset(&req, 0, sizeof(req)); |
| 998 | nladdr.nl_family = AF_NETLINK; |
| 999 | |
| 1000 | req.nlh.nlmsg_len = sizeof(req); |
| 1001 | req.nlh.nlmsg_type = RTM_GETROUTE; |
| 1002 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_REQUEST; |
| 1003 | req.nlh.nlmsg_pid = 0; |
| 1004 | req.nlh.nlmsg_seq = rth->dump = ++rth->seq; |
| 1005 | req.rtm.rtm_family = family; |
| 1006 | req.rtm.rtm_flags |= RTM_F_CLONED; |
| 1007 | |
| 1008 | return sendto(rth->fd, (void*)&req, sizeof(req), 0, (struct sockaddr*)&nladdr, sizeof(nladdr)); |
| 1009 | } |
| 1010 | |
| 1011 | static int iproute_flush_cache(void) |
| 1012 | { |
| 1013 | #define ROUTE_FLUSH_PATH "/proc/sys/net/ipv4/route/flush" |
| 1014 | |
| 1015 | int len; |
| 1016 | int flush_fd = open (ROUTE_FLUSH_PATH, O_WRONLY); |
| 1017 | char *buffer = "-1"; |
| 1018 | |
| 1019 | if (flush_fd < 0) { |
| 1020 | fprintf (stderr, "Cannot open \"%s\"\n", ROUTE_FLUSH_PATH); |
| 1021 | return -1; |
| 1022 | } |
| 1023 | |
| 1024 | len = strlen (buffer); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1025 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1026 | if ((write (flush_fd, (void *)buffer, len)) < len) { |
| 1027 | fprintf (stderr, "Cannot flush routing cache\n"); |
| 1028 | return -1; |
| 1029 | } |
| 1030 | close(flush_fd); |
| 1031 | return 0; |
| 1032 | } |
| 1033 | |
| 1034 | |
| 1035 | static int iproute_list_or_flush(int argc, char **argv, int flush) |
| 1036 | { |
| 1037 | int do_ipv6 = preferred_family; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1038 | char *id = NULL; |
| 1039 | char *od = NULL; |
| 1040 | |
| 1041 | iproute_reset_filter(); |
| 1042 | filter.tb = RT_TABLE_MAIN; |
| 1043 | |
| 1044 | if (flush && argc <= 0) { |
| 1045 | fprintf(stderr, "\"ip route flush\" requires arguments.\n"); |
| 1046 | return -1; |
| 1047 | } |
| 1048 | |
| 1049 | while (argc > 0) { |
| 1050 | if (matches(*argv, "table") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1051 | __u32 tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1052 | NEXT_ARG(); |
| 1053 | if (rtnl_rttable_a2n(&tid, *argv)) { |
| 1054 | if (strcmp(*argv, "all") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1055 | filter.tb = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1056 | } else if (strcmp(*argv, "cache") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1057 | filter.cloned = 1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1058 | } else if (strcmp(*argv, "help") == 0) { |
| 1059 | usage(); |
| 1060 | } else { |
| 1061 | invarg("table id value is invalid\n", *argv); |
| 1062 | } |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1063 | } else |
| 1064 | filter.tb = tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1065 | } else if (matches(*argv, "cached") == 0 || |
| 1066 | matches(*argv, "cloned") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1067 | filter.cloned = 1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1068 | } else if (strcmp(*argv, "tos") == 0 || |
| 1069 | matches(*argv, "dsfield") == 0) { |
| 1070 | __u32 tos; |
| 1071 | NEXT_ARG(); |
| 1072 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 1073 | invarg("TOS value is invalid\n", *argv); |
| 1074 | filter.tos = tos; |
| 1075 | filter.tosmask = -1; |
| 1076 | } else if (matches(*argv, "protocol") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1077 | __u32 prot = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1078 | NEXT_ARG(); |
| 1079 | filter.protocolmask = -1; |
| 1080 | if (rtnl_rtprot_a2n(&prot, *argv)) { |
| 1081 | if (strcmp(*argv, "all") != 0) |
| 1082 | invarg("invalid \"protocol\"\n", *argv); |
| 1083 | prot = 0; |
| 1084 | filter.protocolmask = 0; |
| 1085 | } |
| 1086 | filter.protocol = prot; |
| 1087 | } else if (matches(*argv, "scope") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1088 | __u32 scope = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1089 | NEXT_ARG(); |
| 1090 | filter.scopemask = -1; |
| 1091 | if (rtnl_rtscope_a2n(&scope, *argv)) { |
| 1092 | if (strcmp(*argv, "all") != 0) |
| 1093 | invarg("invalid \"scope\"\n", *argv); |
| 1094 | scope = RT_SCOPE_NOWHERE; |
| 1095 | filter.scopemask = 0; |
| 1096 | } |
| 1097 | filter.scope = scope; |
| 1098 | } else if (matches(*argv, "type") == 0) { |
| 1099 | int type; |
| 1100 | NEXT_ARG(); |
| 1101 | filter.typemask = -1; |
| 1102 | if (rtnl_rtntype_a2n(&type, *argv)) |
| 1103 | invarg("node type value is invalid\n", *argv); |
| 1104 | filter.type = type; |
| 1105 | } else if (strcmp(*argv, "dev") == 0 || |
| 1106 | strcmp(*argv, "oif") == 0) { |
| 1107 | NEXT_ARG(); |
| 1108 | od = *argv; |
| 1109 | } else if (strcmp(*argv, "iif") == 0) { |
| 1110 | NEXT_ARG(); |
| 1111 | id = *argv; |
| 1112 | } else if (strcmp(*argv, "via") == 0) { |
| 1113 | NEXT_ARG(); |
| 1114 | get_prefix(&filter.rvia, *argv, do_ipv6); |
| 1115 | } else if (strcmp(*argv, "src") == 0) { |
| 1116 | NEXT_ARG(); |
| 1117 | get_prefix(&filter.rprefsrc, *argv, do_ipv6); |
| 1118 | } else if (matches(*argv, "realms") == 0) { |
| 1119 | __u32 realm; |
| 1120 | NEXT_ARG(); |
| 1121 | if (get_rt_realms(&realm, *argv)) |
| 1122 | invarg("invalid realms\n", *argv); |
| 1123 | filter.realm = realm; |
| 1124 | filter.realmmask = ~0U; |
| 1125 | if ((filter.realm&0xFFFF) == 0 && |
| 1126 | (*argv)[strlen(*argv) - 1] == '/') |
| 1127 | filter.realmmask &= ~0xFFFF; |
| 1128 | if ((filter.realm&0xFFFF0000U) == 0 && |
| 1129 | (strchr(*argv, '/') == NULL || |
| 1130 | (*argv)[0] == '/')) |
| 1131 | filter.realmmask &= ~0xFFFF0000U; |
| 1132 | } else if (matches(*argv, "from") == 0) { |
| 1133 | NEXT_ARG(); |
| 1134 | if (matches(*argv, "root") == 0) { |
| 1135 | NEXT_ARG(); |
| 1136 | get_prefix(&filter.rsrc, *argv, do_ipv6); |
| 1137 | } else if (matches(*argv, "match") == 0) { |
| 1138 | NEXT_ARG(); |
| 1139 | get_prefix(&filter.msrc, *argv, do_ipv6); |
| 1140 | } else { |
| 1141 | if (matches(*argv, "exact") == 0) { |
| 1142 | NEXT_ARG(); |
| 1143 | } |
| 1144 | get_prefix(&filter.msrc, *argv, do_ipv6); |
| 1145 | filter.rsrc = filter.msrc; |
| 1146 | } |
| 1147 | } else { |
| 1148 | if (matches(*argv, "to") == 0) { |
| 1149 | NEXT_ARG(); |
| 1150 | } |
| 1151 | if (matches(*argv, "root") == 0) { |
| 1152 | NEXT_ARG(); |
| 1153 | get_prefix(&filter.rdst, *argv, do_ipv6); |
| 1154 | } else if (matches(*argv, "match") == 0) { |
| 1155 | NEXT_ARG(); |
| 1156 | get_prefix(&filter.mdst, *argv, do_ipv6); |
| 1157 | } else { |
| 1158 | if (matches(*argv, "exact") == 0) { |
| 1159 | NEXT_ARG(); |
| 1160 | } |
| 1161 | get_prefix(&filter.mdst, *argv, do_ipv6); |
| 1162 | filter.rdst = filter.mdst; |
| 1163 | } |
| 1164 | } |
| 1165 | argc--; argv++; |
| 1166 | } |
| 1167 | |
| 1168 | if (do_ipv6 == AF_UNSPEC && filter.tb) |
| 1169 | do_ipv6 = AF_INET; |
| 1170 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1171 | ll_init_map(&rth); |
| 1172 | |
| 1173 | if (id || od) { |
| 1174 | int idx; |
| 1175 | |
| 1176 | if (id) { |
| 1177 | if ((idx = ll_name_to_index(id)) == 0) { |
| 1178 | fprintf(stderr, "Cannot find device \"%s\"\n", id); |
| 1179 | return -1; |
| 1180 | } |
| 1181 | filter.iif = idx; |
| 1182 | filter.iifmask = -1; |
| 1183 | } |
| 1184 | if (od) { |
| 1185 | if ((idx = ll_name_to_index(od)) == 0) { |
| 1186 | fprintf(stderr, "Cannot find device \"%s\"\n", od); |
| 1187 | return -1; |
| 1188 | } |
| 1189 | filter.oif = idx; |
| 1190 | filter.oifmask = -1; |
| 1191 | } |
| 1192 | } |
| 1193 | |
| 1194 | if (flush) { |
| 1195 | int round = 0; |
| 1196 | char flushb[4096-512]; |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 1197 | time_t start = time(0); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1198 | |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1199 | if (filter.cloned) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1200 | if (do_ipv6 != AF_INET6) { |
| 1201 | iproute_flush_cache(); |
| 1202 | if (show_stats) |
| 1203 | printf("*** IPv4 routing cache is flushed.\n"); |
| 1204 | } |
| 1205 | if (do_ipv6 == AF_INET) |
| 1206 | return 0; |
| 1207 | } |
| 1208 | |
| 1209 | filter.flushb = flushb; |
| 1210 | filter.flushp = 0; |
| 1211 | filter.flushe = sizeof(flushb); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1212 | |
| 1213 | for (;;) { |
| 1214 | if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) { |
| 1215 | perror("Cannot send dump request"); |
| 1216 | exit(1); |
| 1217 | } |
| 1218 | filter.flushed = 0; |
| 1219 | if (rtnl_dump_filter(&rth, print_route, stdout, NULL, NULL) < 0) { |
| 1220 | fprintf(stderr, "Flush terminated\n"); |
| 1221 | exit(1); |
| 1222 | } |
| 1223 | if (filter.flushed == 0) { |
Andreas Henriksson | f0b34d2 | 2008-08-29 19:52:48 +0200 | [diff] [blame] | 1224 | if (show_stats) { |
| 1225 | if (round == 0 && (!filter.cloned || do_ipv6 == AF_INET6)) |
| 1226 | printf("Nothing to flush.\n"); |
| 1227 | else |
| 1228 | printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":""); |
| 1229 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1230 | fflush(stdout); |
| 1231 | return 0; |
| 1232 | } |
| 1233 | round++; |
| 1234 | if (flush_update() < 0) |
| 1235 | exit(1); |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 1236 | |
| 1237 | if (time(0) - start > 30) { |
| 1238 | printf("\n*** Flush not completed after %ld seconds, %d entries remain ***\n", |
| 1239 | time(0) - start, filter.flushed); |
| 1240 | exit(1); |
| 1241 | } |
| 1242 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1243 | if (show_stats) { |
| 1244 | printf("\n*** Round %d, deleting %d entries ***\n", round, filter.flushed); |
| 1245 | fflush(stdout); |
| 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1250 | if (!filter.cloned) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1251 | if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) { |
| 1252 | perror("Cannot send dump request"); |
| 1253 | exit(1); |
| 1254 | } |
| 1255 | } else { |
| 1256 | if (rtnl_rtcache_request(&rth, do_ipv6) < 0) { |
| 1257 | perror("Cannot send dump request"); |
| 1258 | exit(1); |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | if (rtnl_dump_filter(&rth, print_route, stdout, NULL, NULL) < 0) { |
| 1263 | fprintf(stderr, "Dump terminated\n"); |
| 1264 | exit(1); |
| 1265 | } |
| 1266 | |
| 1267 | exit(0); |
| 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | int iproute_get(int argc, char **argv) |
| 1272 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1273 | struct { |
| 1274 | struct nlmsghdr n; |
| 1275 | struct rtmsg r; |
| 1276 | char buf[1024]; |
| 1277 | } req; |
| 1278 | char *idev = NULL; |
| 1279 | char *odev = NULL; |
| 1280 | int connected = 0; |
| 1281 | int from_ok = 0; |
| 1282 | |
| 1283 | memset(&req, 0, sizeof(req)); |
| 1284 | |
| 1285 | iproute_reset_filter(); |
| 1286 | |
| 1287 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)); |
| 1288 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 1289 | req.n.nlmsg_type = RTM_GETROUTE; |
| 1290 | req.r.rtm_family = preferred_family; |
| 1291 | req.r.rtm_table = 0; |
| 1292 | req.r.rtm_protocol = 0; |
| 1293 | req.r.rtm_scope = 0; |
| 1294 | req.r.rtm_type = 0; |
| 1295 | req.r.rtm_src_len = 0; |
| 1296 | req.r.rtm_dst_len = 0; |
| 1297 | req.r.rtm_tos = 0; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1298 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1299 | while (argc > 0) { |
| 1300 | if (strcmp(*argv, "tos") == 0 || |
| 1301 | matches(*argv, "dsfield") == 0) { |
| 1302 | __u32 tos; |
| 1303 | NEXT_ARG(); |
| 1304 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 1305 | invarg("TOS value is invalid\n", *argv); |
| 1306 | req.r.rtm_tos = tos; |
| 1307 | } else if (matches(*argv, "from") == 0) { |
| 1308 | inet_prefix addr; |
| 1309 | NEXT_ARG(); |
| 1310 | if (matches(*argv, "help") == 0) |
| 1311 | usage(); |
| 1312 | from_ok = 1; |
| 1313 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 1314 | if (req.r.rtm_family == AF_UNSPEC) |
| 1315 | req.r.rtm_family = addr.family; |
| 1316 | if (addr.bytelen) |
| 1317 | addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen); |
| 1318 | req.r.rtm_src_len = addr.bitlen; |
| 1319 | } else if (matches(*argv, "iif") == 0) { |
| 1320 | NEXT_ARG(); |
| 1321 | idev = *argv; |
| 1322 | } else if (matches(*argv, "oif") == 0 || |
| 1323 | strcmp(*argv, "dev") == 0) { |
| 1324 | NEXT_ARG(); |
| 1325 | odev = *argv; |
| 1326 | } else if (matches(*argv, "notify") == 0) { |
| 1327 | req.r.rtm_flags |= RTM_F_NOTIFY; |
| 1328 | } else if (matches(*argv, "connected") == 0) { |
| 1329 | connected = 1; |
| 1330 | } else { |
| 1331 | inet_prefix addr; |
| 1332 | if (strcmp(*argv, "to") == 0) { |
| 1333 | NEXT_ARG(); |
| 1334 | } |
| 1335 | if (matches(*argv, "help") == 0) |
| 1336 | usage(); |
| 1337 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 1338 | if (req.r.rtm_family == AF_UNSPEC) |
| 1339 | req.r.rtm_family = addr.family; |
| 1340 | if (addr.bytelen) |
| 1341 | addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen); |
| 1342 | req.r.rtm_dst_len = addr.bitlen; |
| 1343 | } |
| 1344 | argc--; argv++; |
| 1345 | } |
| 1346 | |
| 1347 | if (req.r.rtm_dst_len == 0) { |
| 1348 | fprintf(stderr, "need at least destination address\n"); |
| 1349 | exit(1); |
| 1350 | } |
| 1351 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1352 | ll_init_map(&rth); |
| 1353 | |
| 1354 | if (idev || odev) { |
| 1355 | int idx; |
| 1356 | |
| 1357 | if (idev) { |
| 1358 | if ((idx = ll_name_to_index(idev)) == 0) { |
| 1359 | fprintf(stderr, "Cannot find device \"%s\"\n", idev); |
| 1360 | return -1; |
| 1361 | } |
| 1362 | addattr32(&req.n, sizeof(req), RTA_IIF, idx); |
| 1363 | } |
| 1364 | if (odev) { |
| 1365 | if ((idx = ll_name_to_index(odev)) == 0) { |
| 1366 | fprintf(stderr, "Cannot find device \"%s\"\n", odev); |
| 1367 | return -1; |
| 1368 | } |
| 1369 | addattr32(&req.n, sizeof(req), RTA_OIF, idx); |
| 1370 | } |
| 1371 | } |
| 1372 | |
| 1373 | if (req.r.rtm_family == AF_UNSPEC) |
| 1374 | req.r.rtm_family = AF_INET; |
| 1375 | |
| 1376 | if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) |
| 1377 | exit(2); |
| 1378 | |
| 1379 | if (connected && !from_ok) { |
| 1380 | struct rtmsg *r = NLMSG_DATA(&req.n); |
| 1381 | int len = req.n.nlmsg_len; |
| 1382 | struct rtattr * tb[RTA_MAX+1]; |
| 1383 | |
| 1384 | if (print_route(NULL, &req.n, (void*)stdout) < 0) { |
| 1385 | fprintf(stderr, "An error :-)\n"); |
| 1386 | exit(1); |
| 1387 | } |
| 1388 | |
| 1389 | if (req.n.nlmsg_type != RTM_NEWROUTE) { |
| 1390 | fprintf(stderr, "Not a route?\n"); |
| 1391 | return -1; |
| 1392 | } |
| 1393 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 1394 | if (len < 0) { |
| 1395 | fprintf(stderr, "Wrong len %d\n", len); |
| 1396 | return -1; |
| 1397 | } |
| 1398 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1399 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); |
| 1400 | |
| 1401 | if (tb[RTA_PREFSRC]) { |
| 1402 | tb[RTA_PREFSRC]->rta_type = RTA_SRC; |
| 1403 | r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]); |
| 1404 | } else if (!tb[RTA_SRC]) { |
| 1405 | fprintf(stderr, "Failed to connect the route\n"); |
| 1406 | return -1; |
| 1407 | } |
| 1408 | if (!odev && tb[RTA_OIF]) |
| 1409 | tb[RTA_OIF]->rta_type = 0; |
| 1410 | if (tb[RTA_GATEWAY]) |
| 1411 | tb[RTA_GATEWAY]->rta_type = 0; |
| 1412 | if (!idev && tb[RTA_IIF]) |
| 1413 | tb[RTA_IIF]->rta_type = 0; |
| 1414 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 1415 | req.n.nlmsg_type = RTM_GETROUTE; |
| 1416 | |
| 1417 | if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) |
| 1418 | exit(2); |
| 1419 | } |
| 1420 | |
| 1421 | if (print_route(NULL, &req.n, (void*)stdout) < 0) { |
| 1422 | fprintf(stderr, "An error :-)\n"); |
| 1423 | exit(1); |
| 1424 | } |
| 1425 | |
| 1426 | exit(0); |
| 1427 | } |
| 1428 | |
| 1429 | void iproute_reset_filter() |
| 1430 | { |
| 1431 | memset(&filter, 0, sizeof(filter)); |
| 1432 | filter.mdst.bitlen = -1; |
| 1433 | filter.msrc.bitlen = -1; |
| 1434 | } |
| 1435 | |
| 1436 | int do_iproute(int argc, char **argv) |
| 1437 | { |
| 1438 | if (argc < 1) |
| 1439 | return iproute_list_or_flush(0, NULL, 0); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1440 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1441 | if (matches(*argv, "add") == 0) |
| 1442 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL, |
| 1443 | argc-1, argv+1); |
| 1444 | if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0) |
| 1445 | return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE, |
| 1446 | argc-1, argv+1); |
| 1447 | if (matches(*argv, "replace") == 0) |
| 1448 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE, |
| 1449 | argc-1, argv+1); |
| 1450 | if (matches(*argv, "prepend") == 0) |
| 1451 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE, |
| 1452 | argc-1, argv+1); |
| 1453 | if (matches(*argv, "append") == 0) |
| 1454 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND, |
| 1455 | argc-1, argv+1); |
| 1456 | if (matches(*argv, "test") == 0) |
| 1457 | return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL, |
| 1458 | argc-1, argv+1); |
| 1459 | if (matches(*argv, "delete") == 0) |
| 1460 | return iproute_modify(RTM_DELROUTE, 0, |
| 1461 | argc-1, argv+1); |
| 1462 | if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 |
| 1463 | || matches(*argv, "lst") == 0) |
| 1464 | return iproute_list_or_flush(argc-1, argv+1, 0); |
| 1465 | if (matches(*argv, "get") == 0) |
| 1466 | return iproute_get(argc-1, argv+1); |
| 1467 | if (matches(*argv, "flush") == 0) |
| 1468 | return iproute_list_or_flush(argc-1, argv+1, 1); |
| 1469 | if (matches(*argv, "help") == 0) |
| 1470 | usage(); |
| 1471 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv); |
| 1472 | exit(-1); |
| 1473 | } |
| 1474 | |