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iproute: make printing icmpv6 a function
[mirror_iproute2.git] / ip / iproute.c
CommitLineData
aba5acdf
SH		 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 *
aba5acdf
SH		 11 */
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
aba5acdf
SH		 16#include <fcntl.h>
17#include <string.h>
33551240 18#include <time.h>
aba5acdf
SH		 19#include <sys/time.h>
20#include <sys/socket.h>
21#include <netinet/in.h>
22#include <netinet/ip.h>
23#include <arpa/inet.h>
24#include <linux/in_route.h>
194e9b85 25#include <linux/icmpv6.h>
f4ff11e3 26#include <errno.h>
aba5acdf
SH		 27
28#include "rt_names.h"
29#include "utils.h"
30#include "ip_common.h"
31
32#ifndef RTAX_RTTVAR
33#define RTAX_RTTVAR RTAX_HOPS
34#endif
35
f4ff11e3
DS		 36enum list_action {
37 IPROUTE_LIST,
38 IPROUTE_FLUSH,
39 IPROUTE_SAVE,
40};
f38c7334 41static const char *mx_names[RTAX_MAX+1] = {
e54ed380
CP		 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",
53 [RTAX_RTO_MIN] = "rto_min",
54 [RTAX_INITRWND] = "initrwnd",
55 [RTAX_QUICKACK] = "quickack",
56 [RTAX_CC_ALGO] = "congctl",
57 [RTAX_FASTOPEN_NO_COOKIE] = "fastopen_no_cookie"
f38c7334 58};
aba5acdf
SH		 59static void usage(void) __attribute__((noreturn));
60
61static void usage(void)
62{
21fef525
SH		 63 fprintf(stderr,
64 "Usage: ip route { list | flush } SELECTOR\n"
65 " ip route save SELECTOR\n"
66 " ip route restore\n"
67 " ip route showdump\n"
68 " ip route get [ ROUTE_GET_FLAGS ] ADDRESS\n"
69 " [ from ADDRESS iif STRING ]\n"
70 " [ oif STRING ] [ tos TOS ]\n"
71 " [ mark NUMBER ] [ vrf NAME ]\n"
72 " [ uid NUMBER ]\n"
73 " ip route { add | del | change | append | replace } ROUTE\n"
74 "SELECTOR := [ root PREFIX ] [ match PREFIX ] [ exact PREFIX ]\n"
75 " [ table TABLE_ID ] [ vrf NAME ] [ proto RTPROTO ]\n"
76 " [ type TYPE ] [ scope SCOPE ]\n"
77 "ROUTE := NODE_SPEC [ INFO_SPEC ]\n"
78 "NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ]\n"
79 " [ table TABLE_ID ] [ proto RTPROTO ]\n"
80 " [ scope SCOPE ] [ metric METRIC ]\n"
81 " [ ttl-propagate { enabled | disabled } ]\n"
82 "INFO_SPEC := NH OPTIONS FLAGS [ nexthop NH ]...\n"
83 "NH := [ encap ENCAPTYPE ENCAPHDR ] [ via [ FAMILY ] ADDRESS ]\n"
84 " [ dev STRING ] [ weight NUMBER ] NHFLAGS\n"
85 "FAMILY := [ inet | inet6 | ipx | dnet | mpls | bridge | link ]\n"
86 "OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ] [ as [ to ] ADDRESS ]\n"
87 " [ rtt TIME ] [ rttvar TIME ] [ reordering NUMBER ]\n"
88 " [ window NUMBER ] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n"
89 " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n"
90 " [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n"
91 " [ features FEATURES ] [ quickack BOOL ] [ congctl NAME ]\n"
e54ed380 92 " [ pref PREF ] [ expires TIME ] [ fastopen_no_cookie BOOL ]\n"
21fef525
SH		 93 "TYPE := { unicast | local | broadcast | multicast | throw |\n"
94 " unreachable | prohibit | blackhole | nat }\n"
95 "TABLE_ID := [ local | main | default | all | NUMBER ]\n"
96 "SCOPE := [ host | link | global | NUMBER ]\n"
97 "NHFLAGS := [ onlink | pervasive ]\n"
98 "RTPROTO := [ kernel | boot | static | NUMBER ]\n"
99 "PREF := [ low | medium | high ]\n"
100 "TIME := NUMBER[s|ms]\n"
101 "BOOL := [1|0]\n"
102 "FEATURES := ecn\n"
103 "ENCAPTYPE := [ mpls | ip | ip6 | seg6 | seg6local ]\n"
104 "ENCAPHDR := [ MPLSLABEL | SEG6HDR ]\n"
105 "SEG6HDR := [ mode SEGMODE ] segs ADDR1,ADDRi,ADDRn [hmac HMACKEYID] [cleanup]\n"
106 "SEGMODE := [ encap | inline ]\n"
107 "ROUTE_GET_FLAGS := [ fibmatch ]\n");
aba5acdf
SH		 108 exit(-1);
109}
110
111
112static struct
113{
caae16b3 114 unsigned int tb;
bd4bcdad 115 int cloned;
aba5acdf
SH		 116 int flushed;
117 char *flushb;
118 int flushp;
119 int flushe;
aba5acdf
SH		 120 int protocol, protocolmask;
121 int scope, scopemask;
d84b1878 122 __u64 typemask;
aba5acdf
SH		 123 int tos, tosmask;
124 int iif, iifmask;
125 int oif, oifmask;
b0373bfb 126 int mark, markmask;
aba5acdf 127 int realm, realmmask;
ed7fdc95 128 __u32 metric, metricmask;
aba5acdf
SH		 129 inet_prefix rprefsrc;
130 inet_prefix rvia;
131 inet_prefix rdst;
132 inet_prefix mdst;
133 inet_prefix rsrc;
134 inet_prefix msrc;
135} filter;
136
137static int flush_update(void)
138{
f31a37f7 139 if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
1fb0a998 140 perror("Failed to send flush request");
2f406f2d 141 return -2;
aba5acdf
SH		 142 }
143 filter.flushp = 0;
144 return 0;
145}
146
d1f28cf1 147static int filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int host_len)
aba5acdf 148{
aba5acdf 149 struct rtmsg *r = NLMSG_DATA(n);
d17b136f
PS		 150 inet_prefix dst = { .family = r->rtm_family };
151 inet_prefix src = { .family = r->rtm_family };
152 inet_prefix via = { .family = r->rtm_family };
153 inet_prefix prefsrc = { .family = r->rtm_family };
34e95647 154 __u32 table;
f4ff11e3 155 static int ip6_multiple_tables;
aba5acdf 156
34e95647
PM		 157 table = rtm_get_table(r, tb);
158
5b9ac190
AV		 159 if (preferred_family != AF_UNSPEC && r->rtm_family != preferred_family)
160 return 0;
161
34e95647 162 if (r->rtm_family == AF_INET6 && table != RT_TABLE_MAIN)
e0b29fe7
PM		 163 ip6_multiple_tables = 1;
164
44792827
UW		 165 if (filter.cloned == !(r->rtm_flags&RTM_F_CLONED))
166 return 0;
167
e0b29fe7 168 if (r->rtm_family == AF_INET6 && !ip6_multiple_tables) {
aba5acdf 169 if (filter.tb) {
bd4bcdad
PM		 170 if (filter.tb == RT_TABLE_LOCAL) {
171 if (r->rtm_type != RTN_LOCAL)
aba5acdf 172 return 0;
bd4bcdad
PM		 173 } else if (filter.tb == RT_TABLE_MAIN) {
174 if (r->rtm_type == RTN_LOCAL)
aba5acdf 175 return 0;
bd4bcdad
PM		 176 } else {
177 return 0;
aba5acdf
SH		 178 }
179 }
180 } else {
34e95647 181 if (filter.tb > 0 && filter.tb != table)
aba5acdf
SH		 182 return 0;
183 }
184 if ((filter.protocol^r->rtm_protocol)&filter.protocolmask)
185 return 0;
186 if ((filter.scope^r->rtm_scope)&filter.scopemask)
187 return 0;
d84b1878
DA		 188
189 if (filter.typemask && !(filter.typemask & (1 << r->rtm_type)))
aba5acdf
SH		 190 return 0;
191 if ((filter.tos^r->rtm_tos)&filter.tosmask)
192 return 0;
9135c4d6
AZ		 193 if (filter.rdst.family) {
194 if (r->rtm_family != filter.rdst.family ||
195 filter.rdst.bitlen > r->rtm_dst_len)
196 return 0;
197 } else if (filter.rdst.flags & PREFIXLEN_SPECIFIED) {
198 if (filter.rdst.bitlen > r->rtm_dst_len)
199 return 0;
200 }
201 if (filter.mdst.family) {
202 if (r->rtm_family != filter.mdst.family ||
203 (filter.mdst.bitlen >= 0 &&
204 filter.mdst.bitlen < r->rtm_dst_len))
205 return 0;
206 } else if (filter.mdst.flags & PREFIXLEN_SPECIFIED) {
207 if (filter.mdst.bitlen >= 0 &&
208 filter.mdst.bitlen < r->rtm_dst_len)
209 return 0;
210 }
211 if (filter.rsrc.family) {
212 if (r->rtm_family != filter.rsrc.family ||
213 filter.rsrc.bitlen > r->rtm_src_len)
214 return 0;
215 } else if (filter.rsrc.flags & PREFIXLEN_SPECIFIED) {
216 if (filter.rsrc.bitlen > r->rtm_src_len)
217 return 0;
218 }
219 if (filter.msrc.family) {
220 if (r->rtm_family != filter.msrc.family ||
221 (filter.msrc.bitlen >= 0 &&
222 filter.msrc.bitlen < r->rtm_src_len))
223 return 0;
224 } else if (filter.msrc.flags & PREFIXLEN_SPECIFIED) {
225 if (filter.msrc.bitlen >= 0 &&
226 filter.msrc.bitlen < r->rtm_src_len)
227 return 0;
228 }
93ae2835
EB		 229 if (filter.rvia.family) {
230 int family = r->rtm_family;
56f5daac 231
93ae2835
EB		 232 if (tb[RTA_VIA]) {
233 struct rtvia *via = RTA_DATA(tb[RTA_VIA]);
56f5daac 234
93ae2835
EB		 235 family = via->rtvia_family;
236 }
237 if (family != filter.rvia.family)
238 return 0;
239 }
aba5acdf
SH		 240 if (filter.rprefsrc.family && r->rtm_family != filter.rprefsrc.family)
241 return 0;
242
aba5acdf
SH		 243 if (tb[RTA_DST])
244 memcpy(&dst.data, RTA_DATA(tb[RTA_DST]), (r->rtm_dst_len+7)/8);
9135c4d6
AZ		 245 if (filter.rsrc.family || filter.msrc.family ||
246 filter.rsrc.flags & PREFIXLEN_SPECIFIED ||
247 filter.msrc.flags & PREFIXLEN_SPECIFIED) {
aba5acdf
SH		 248 if (tb[RTA_SRC])
249 memcpy(&src.data, RTA_DATA(tb[RTA_SRC]), (r->rtm_src_len+7)/8);
250 }
56f5daac 251 if (filter.rvia.bitlen > 0) {
aba5acdf 252 if (tb[RTA_GATEWAY])
7849fb55 253 memcpy(&via.data, RTA_DATA(tb[RTA_GATEWAY]), host_len/8);
93ae2835
EB		 254 if (tb[RTA_VIA]) {
255 size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2;
256 struct rtvia *rtvia = RTA_DATA(tb[RTA_VIA]);
56f5daac 257
93ae2835
EB		 258 via.family = rtvia->rtvia_family;
259 memcpy(&via.data, rtvia->rtvia_addr, len);
260 }
aba5acdf 261 }
56f5daac 262 if (filter.rprefsrc.bitlen > 0) {
aba5acdf 263 if (tb[RTA_PREFSRC])
7849fb55 264 memcpy(&prefsrc.data, RTA_DATA(tb[RTA_PREFSRC]), host_len/8);
aba5acdf
SH		 265 }
266
9135c4d6
AZ		 267 if ((filter.rdst.family || filter.rdst.flags & PREFIXLEN_SPECIFIED) &&
268 inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen))
aba5acdf 269 return 0;
9135c4d6 270 if ((filter.mdst.family || filter.mdst.flags & PREFIXLEN_SPECIFIED) &&
aba5acdf
SH		 271 inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len))
272 return 0;
273
9135c4d6
AZ		 274 if ((filter.rsrc.family || filter.rsrc.flags & PREFIXLEN_SPECIFIED) &&
275 inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen))
aba5acdf 276 return 0;
9135c4d6
AZ		 277 if ((filter.msrc.family || filter.msrc.flags & PREFIXLEN_SPECIFIED) &&
278 filter.msrc.bitlen >= 0 &&
aba5acdf
SH		 279 inet_addr_match(&src, &filter.msrc, r->rtm_src_len))
280 return 0;
281
282 if (filter.rvia.family && inet_addr_match(&via, &filter.rvia, filter.rvia.bitlen))
283 return 0;
284 if (filter.rprefsrc.family && inet_addr_match(&prefsrc, &filter.rprefsrc, filter.rprefsrc.bitlen))
285 return 0;
286 if (filter.realmmask) {
287 __u32 realms = 0;
56f5daac 288
aba5acdf 289 if (tb[RTA_FLOW])
ff24746c 290 realms = rta_getattr_u32(tb[RTA_FLOW]);
aba5acdf
SH		 291 if ((realms^filter.realm)&filter.realmmask)
292 return 0;
293 }
294 if (filter.iifmask) {
295 int iif = 0;
56f5daac 296
aba5acdf 297 if (tb[RTA_IIF])
9f1370c0 298 iif = rta_getattr_u32(tb[RTA_IIF]);
aba5acdf
SH		 299 if ((iif^filter.iif)&filter.iifmask)
300 return 0;
301 }
302 if (filter.oifmask) {
303 int oif = 0;
56f5daac 304
aba5acdf 305 if (tb[RTA_OIF])
9f1370c0 306 oif = rta_getattr_u32(tb[RTA_OIF]);
aba5acdf
SH		 307 if ((oif^filter.oif)&filter.oifmask)
308 return 0;
309 }
b0373bfb
ED		 310 if (filter.markmask) {
311 int mark = 0;
56f5daac 312
b0373bfb 313 if (tb[RTA_MARK])
9f1370c0 314 mark = rta_getattr_u32(tb[RTA_MARK]);
b0373bfb
ED		 315 if ((mark ^ filter.mark) & filter.markmask)
316 return 0;
317 }
ed7fdc95
AZ		 318 if (filter.metricmask) {
319 __u32 metric = 0;
320
321 if (tb[RTA_PRIORITY])
322 metric = rta_getattr_u32(tb[RTA_PRIORITY]);
323 if ((metric ^ filter.metric) & filter.metricmask)
324 return 0;
325 }
ae665a52 326 if (filter.flushb &&
aba5acdf
SH		 327 r->rtm_family == AF_INET6 &&
328 r->rtm_dst_len == 0 &&
329 r->rtm_type == RTN_UNREACHABLE &&
330 tb[RTA_PRIORITY] &&
9f1370c0 331 rta_getattr_u32(tb[RTA_PRIORITY]) == -1)
aba5acdf
SH		 332 return 0;
333
f4ff11e3
DS		 334 return 1;
335}
336
29d1f730
FW		 337static void print_rtax_features(FILE *fp, unsigned int features)
338{
339 unsigned int of = features;
340
341 if (features & RTAX_FEATURE_ECN) {
5551ed44 342 fprintf(fp, "ecn ");
29d1f730
FW		 343 features &= ~RTAX_FEATURE_ECN;
344 }
345
346 if (features)
5551ed44 347 fprintf(fp, "0x%x ", of);
29d1f730
FW		 348}
349
b3ab1e68
SH		 350static void print_rt_flags(FILE *fp, unsigned int flags)
351{
352 if (flags & RTNH_F_DEAD)
353 fprintf(fp, "dead ");
354 if (flags & RTNH_F_ONLINK)
355 fprintf(fp, "onlink ");
356 if (flags & RTNH_F_PERVASIVE)
357 fprintf(fp, "pervasive ");
358 if (flags & RTNH_F_OFFLOAD)
359 fprintf(fp, "offload ");
360 if (flags & RTNH_F_LINKDOWN)
361 fprintf(fp, "linkdown ");
362 if (flags & RTNH_F_UNRESOLVED)
363 fprintf(fp, "unresolved ");
364}
365
8cfc2d47
SH		 366static void print_rt_pref(FILE *fp, unsigned int pref)
367{
368 fprintf(fp, "pref ");
369
370 switch (pref) {
371 case ICMPV6_ROUTER_PREF_LOW:
372 fprintf(fp, "low");
373 break;
374 case ICMPV6_ROUTER_PREF_MEDIUM:
375 fprintf(fp, "medium");
376 break;
377 case ICMPV6_ROUTER_PREF_HIGH:
378 fprintf(fp, "high");
379 break;
380 default:
381 fprintf(fp, "%u", pref);
382 }
383}
384
f4ff11e3
DS		 385int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
386{
56f5daac 387 FILE *fp = (FILE *)arg;
f4ff11e3
DS		 388 struct rtmsg *r = NLMSG_DATA(n);
389 int len = n->nlmsg_len;
56f5daac 390 struct rtattr *tb[RTA_MAX+1];
56e3eb4c 391 int host_len, family;
f4ff11e3 392 __u32 table;
2f406f2d 393 int ret;
56f5daac 394
f4ff11e3
DS		 395 SPRINT_BUF(b1);
396 static int hz;
397
398 if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) {
399 fprintf(stderr, "Not a route: %08x %08x %08x\n",
400 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
ba7b9777 401 return -1;
f4ff11e3
DS		 402 }
403 if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE)
404 return 0;
405 len -= NLMSG_LENGTH(sizeof(*r));
406 if (len < 0) {
407 fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
408 return -1;
409 }
410
f3a2ddc1 411 host_len = af_bit_len(r->rtm_family);
f4ff11e3
DS		 412
413 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
414 table = rtm_get_table(r, tb);
415
416 if (!filter_nlmsg(n, tb, host_len))
417 return 0;
418
aba5acdf
SH		 419 if (filter.flushb) {
420 struct nlmsghdr *fn;
56f5daac 421
aba5acdf 422 if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
2f406f2d
ÉB		 423 if ((ret = flush_update()) < 0)
424 return ret;
aba5acdf 425 }
56f5daac 426 fn = (struct nlmsghdr *)(filter.flushb + NLMSG_ALIGN(filter.flushp));
aba5acdf
SH		 427 memcpy(fn, n, n->nlmsg_len);
428 fn->nlmsg_type = RTM_DELROUTE;
429 fn->nlmsg_flags = NLM_F_REQUEST;
351efcde 430 fn->nlmsg_seq = ++rth.seq;
56f5daac 431 filter.flushp = (((char *)fn) + n->nlmsg_len) - filter.flushb;
aba5acdf
SH		 432 filter.flushed++;
433 if (show_stats < 2)
434 return 0;
435 }
436
437 if (n->nlmsg_type == RTM_DELROUTE)
438 fprintf(fp, "Deleted ");
d84b1878
DA		 439 if ((r->rtm_type != RTN_UNICAST || show_details > 0) &&
440 (!filter.typemask || (filter.typemask & (1 << r->rtm_type))))
aba5acdf
SH		 441 fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
442
443 if (tb[RTA_DST]) {
56e3eb4c 444 family = get_real_family(r->rtm_type, r->rtm_family);
aba5acdf 445 if (r->rtm_dst_len != host_len) {
7faf1588 446 fprintf(fp, "%s/%u ",
56e3eb4c 447 rt_addr_n2a_rta(family, tb[RTA_DST]),
7faf1588 448 r->rtm_dst_len);
aba5acdf 449 } else {
d49f934c 450 fprintf(fp, "%s ",
56e3eb4c 451 format_host_rta(family, tb[RTA_DST]));
aba5acdf
SH		 452 }
453 } else if (r->rtm_dst_len) {
454 fprintf(fp, "0/%d ", r->rtm_dst_len);
455 } else {
456 fprintf(fp, "default ");
457 }
458 if (tb[RTA_SRC]) {
56e3eb4c 459 family = get_real_family(r->rtm_type, r->rtm_family);
aba5acdf 460 if (r->rtm_src_len != host_len) {
7faf1588 461 fprintf(fp, "from %s/%u ",
56e3eb4c 462 rt_addr_n2a_rta(family, tb[RTA_SRC]),
7faf1588 463 r->rtm_src_len);
aba5acdf 464 } else {
d49f934c 465 fprintf(fp, "from %s ",
56e3eb4c 466 format_host_rta(family, tb[RTA_SRC]));
aba5acdf
SH		 467 }
468 } else if (r->rtm_src_len) {
469 fprintf(fp, "from 0/%u ", r->rtm_src_len);
470 }
6f7a9f4d 471 if (tb[RTA_NEWDST]) {
d49f934c
PS		 472 fprintf(fp, "as to %s ",
473 format_host_rta(r->rtm_family, tb[RTA_NEWDST]));
6f7a9f4d 474 }
1e529305
RP		 475
476 if (tb[RTA_ENCAP])
477 lwt_print_encap(fp, tb[RTA_ENCAP_TYPE], tb[RTA_ENCAP]);
478
aba5acdf
SH		 479 if (r->rtm_tos && filter.tosmask != -1) {
480 SPRINT_BUF(b1);
481 fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1)));
482 }
02d2ae55 483
aba5acdf 484 if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) {
ae665a52 485 fprintf(fp, "via %s ",
d49f934c 486 format_host_rta(r->rtm_family, tb[RTA_GATEWAY]));
aba5acdf 487 }
93ae2835
EB		 488 if (tb[RTA_VIA]) {
489 size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2;
490 struct rtvia *via = RTA_DATA(tb[RTA_VIA]);
56f5daac 491
93ae2835
EB		 492 fprintf(fp, "via %s %s ",
493 family_name(via->rtvia_family),
a418e451 494 format_host(via->rtvia_family, len, via->rtvia_addr));
93ae2835 495 }
aba5acdf 496 if (tb[RTA_OIF] && filter.oifmask != -1)
9f1370c0 497 fprintf(fp, "dev %s ", ll_index_to_name(rta_getattr_u32(tb[RTA_OIF])));
aba5acdf 498
bc234301 499 if (table && (table != RT_TABLE_MAIN || show_details > 0) && !filter.tb)
7cc7cb8a 500 fprintf(fp, "table %s ", rtnl_rttable_n2a(table, b1, sizeof(b1)));
aba5acdf 501 if (!(r->rtm_flags&RTM_F_CLONED)) {
577e5a53 502 if ((r->rtm_protocol != RTPROT_BOOT || show_details > 0) && filter.protocolmask != -1)
7cc7cb8a 503 fprintf(fp, "proto %s ", rtnl_rtprot_n2a(r->rtm_protocol, b1, sizeof(b1)));
577e5a53 504 if ((r->rtm_scope != RT_SCOPE_UNIVERSE || show_details > 0) && filter.scopemask != -1)
7cc7cb8a 505 fprintf(fp, "scope %s ", rtnl_rtscope_n2a(r->rtm_scope, b1, sizeof(b1)));
aba5acdf
SH		 506 }
507 if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
508 /* Do not use format_host(). It is our local addr
509 and symbolic name will not be useful.
510 */
7cc7cb8a 511 fprintf(fp, "src %s ",
7faf1588 512 rt_addr_n2a_rta(r->rtm_family, tb[RTA_PREFSRC]));
aba5acdf 513 }
ed7fdc95 514 if (tb[RTA_PRIORITY] && filter.metricmask != -1)
7cc7cb8a 515 fprintf(fp, "metric %u ", rta_getattr_u32(tb[RTA_PRIORITY]));
b3ab1e68
SH		 516
517 print_rt_flags(fp, r->rtm_flags);
518
b0373bfb 519 if (tb[RTA_MARK]) {
9f1370c0 520 unsigned int mark = rta_getattr_u32(tb[RTA_MARK]);
56f5daac 521
b0373bfb
ED		 522 if (mark) {
523 if (mark >= 16)
7cc7cb8a 524 fprintf(fp, "mark 0x%x ", mark);
b0373bfb 525 else
7cc7cb8a 526 fprintf(fp, "mark %u ", mark);
b0373bfb
ED		 527 }
528 }
aba5acdf
SH		 529
530 if (tb[RTA_FLOW] && filter.realmmask != ~0U) {
ff24746c 531 __u32 to = rta_getattr_u32(tb[RTA_FLOW]);
aba5acdf 532 __u32 from = to>>16;
56f5daac 533
aba5acdf
SH		 534 to &= 0xFFFF;
535 fprintf(fp, "realm%s ", from ? "s" : "");
536 if (from) {
537 fprintf(fp, "%s/",
538 rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
539 }
540 fprintf(fp, "%s ",
541 rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
542 }
82252cdc
LC		 543
544 if (tb[RTA_UID])
545 fprintf(fp, "uid %u ", rta_getattr_u32(tb[RTA_UID]));
546
aba5acdf
SH		 547 if ((r->rtm_flags&RTM_F_CLONED) && r->rtm_family == AF_INET) {
548 __u32 flags = r->rtm_flags&~0xFFFF;
549 int first = 1;
550
551 fprintf(fp, "%s cache ", _SL_);
552
56f5daac 553#define PRTFL(fl, flname) if (flags&RTCF_##fl) { \
aba5acdf
SH		 554 flags &= ~RTCF_##fl; \
555 fprintf(fp, "%s" flname "%s", first ? "<" : "", flags ? "," : "> "); \
556 first = 0; }
557 PRTFL(LOCAL, "local");
558 PRTFL(REJECT, "reject");
559 PRTFL(MULTICAST, "mc");
560 PRTFL(BROADCAST, "brd");
561 PRTFL(DNAT, "dst-nat");
562 PRTFL(SNAT, "src-nat");
563 PRTFL(MASQ, "masq");
564 PRTFL(DIRECTDST, "dst-direct");
565 PRTFL(DIRECTSRC, "src-direct");
566 PRTFL(REDIRECTED, "redirected");
567 PRTFL(DOREDIRECT, "redirect");
568 PRTFL(FAST, "fastroute");
569 PRTFL(NOTIFY, "notify");
570 PRTFL(TPROXY, "proxy");
63a0f20a 571
aba5acdf
SH		 572 if (flags)
573 fprintf(fp, "%s%x> ", first ? "<" : "", flags);
574 if (tb[RTA_CACHEINFO]) {
575 struct rta_cacheinfo *ci = RTA_DATA(tb[RTA_CACHEINFO]);
56f5daac 576
aba5acdf 577 if (!hz)
5e8bc631 578 hz = get_user_hz();
aba5acdf 579 if (ci->rta_expires != 0)
5551ed44 580 fprintf(fp, "expires %dsec ", ci->rta_expires/hz);
aba5acdf 581 if (ci->rta_error != 0)
5551ed44 582 fprintf(fp, "error %d ", ci->rta_error);
aba5acdf
SH		 583 if (show_stats) {
584 if (ci->rta_clntref)
5551ed44 585 fprintf(fp, "users %d ", ci->rta_clntref);
aba5acdf 586 if (ci->rta_used != 0)
5551ed44 587 fprintf(fp, "used %d ", ci->rta_used);
aba5acdf 588 if (ci->rta_lastuse != 0)
5551ed44 589 fprintf(fp, "age %dsec ", ci->rta_lastuse/hz);
aba5acdf 590 }
aba5acdf 591 if (ci->rta_id)
5551ed44 592 fprintf(fp, "ipid 0x%04x ", ci->rta_id);
aba5acdf 593 if (ci->rta_ts || ci->rta_tsage)
5551ed44 594 fprintf(fp, "ts 0x%x tsage %dsec ",
d5b7420a 595 ci->rta_ts, ci->rta_tsage);
aba5acdf
SH		 596 }
597 } else if (r->rtm_family == AF_INET6) {
598 struct rta_cacheinfo *ci = NULL;
56f5daac 599
aba5acdf
SH		 600 if (tb[RTA_CACHEINFO])
601 ci = RTA_DATA(tb[RTA_CACHEINFO]);
602 if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
aba5acdf 603 if (!hz)
5e8bc631 604 hz = get_user_hz();
aba5acdf
SH		 605 if (r->rtm_flags & RTM_F_CLONED)
606 fprintf(fp, "%s cache ", _SL_);
607 if (ci->rta_expires)
5551ed44 608 fprintf(fp, "expires %dsec ", ci->rta_expires/hz);
aba5acdf 609 if (ci->rta_error != 0)
5551ed44 610 fprintf(fp, "error %d ", ci->rta_error);
aba5acdf
SH		 611 if (show_stats) {
612 if (ci->rta_clntref)
5551ed44 613 fprintf(fp, "users %d ", ci->rta_clntref);
aba5acdf 614 if (ci->rta_used != 0)
5551ed44 615 fprintf(fp, "used %d ", ci->rta_used);
aba5acdf 616 if (ci->rta_lastuse != 0)
5551ed44 617 fprintf(fp, "age %dsec ", ci->rta_lastuse/hz);
aba5acdf
SH		 618 }
619 } else if (ci) {
620 if (ci->rta_error != 0)
5551ed44 621 fprintf(fp, "error %d ", ci->rta_error);
aba5acdf
SH		 622 }
623 }
624 if (tb[RTA_METRICS]) {
625 int i;
56f5daac 626 unsigned int mxlock = 0;
aba5acdf
SH		 627 struct rtattr *mxrta[RTAX_MAX+1];
628
aba5acdf
SH		 629 parse_rtattr(mxrta, RTAX_MAX, RTA_DATA(tb[RTA_METRICS]),
630 RTA_PAYLOAD(tb[RTA_METRICS]));
631 if (mxrta[RTAX_LOCK])
9f1370c0 632 mxlock = rta_getattr_u32(mxrta[RTAX_LOCK]);
aba5acdf 633
56f5daac 634 for (i = 2; i <= RTAX_MAX; i++) {
eb855269 635 __u32 val = 0U;
ced61d7d 636
e4139268 637 if (mxrta[i] == NULL && !(mxlock & (1 << i)))
aba5acdf 638 continue;
6a79240b 639
e4139268 640 if (mxrta[i] != NULL && i != RTAX_CC_ALGO)
6ef87f9c 641 val = rta_getattr_u32(mxrta[i]);
aba5acdf 642
0f754332
PS		 643 if (i == RTAX_HOPLIMIT && (int)val == -1)
644 continue;
645
56f5daac 646 if (i < sizeof(mx_names)/sizeof(char *) && mx_names[i])
5551ed44 647 fprintf(fp, "%s ", mx_names[i]);
0f754332 648 else
5551ed44 649 fprintf(fp, "metric %d ", i);
0f754332 650
ed6b8652 651 if (mxlock & (1<<i))
5551ed44 652 fprintf(fp, "lock ");
ed6b8652 653
ced61d7d 654 switch (i) {
29d1f730
FW		 655 case RTAX_FEATURES:
656 print_rtax_features(fp, val);
657 break;
ced61d7d 658 default:
5551ed44 659 fprintf(fp, "%u ", val);
ced61d7d 660 break;
aba5acdf 661
ced61d7d
SH		 662 case RTAX_RTT:
663 case RTAX_RTTVAR:
664 case RTAX_RTO_MIN:
aba5acdf
SH		 665 if (i == RTAX_RTT)
666 val /= 8;
54e0b2e7 667 else if (i == RTAX_RTTVAR)
aba5acdf 668 val /= 4;
ced61d7d 669
9b2cdc00 670 if (val >= 1000)
5551ed44 671 fprintf(fp, "%gs ", val/1e3);
aba5acdf 672 else
5551ed44 673 fprintf(fp, "%ums ", val);
6ef87f9c
DB		 674 break;
675 case RTAX_CC_ALGO:
5551ed44 676 fprintf(fp, "%s ", rta_getattr_str(mxrta[i]));
6ef87f9c 677 break;
aba5acdf
SH		 678 }
679 }
680 }
681 if (tb[RTA_IIF] && filter.iifmask != -1) {
5551ed44 682 fprintf(fp, "iif %s ",
9f1370c0 683 ll_index_to_name(rta_getattr_u32(tb[RTA_IIF])));
aba5acdf
SH		 684 }
685 if (tb[RTA_MULTIPATH]) {
686 struct rtnexthop *nh = RTA_DATA(tb[RTA_MULTIPATH]);
2a866256 687 int first = 1;
aba5acdf
SH		 688
689 len = RTA_PAYLOAD(tb[RTA_MULTIPATH]);
690
691 for (;;) {
692 if (len < sizeof(*nh))
693 break;
694 if (nh->rtnh_len > len)
695 break;
696 if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) {
2a866256 697 if (first) {
5551ed44 698 fprintf(fp, "Oifs: ");
2a866256
PS		 699 first = 0;
700 } else {
aba5acdf 701 fprintf(fp, " ");
2a866256 702 }
aba5acdf 703 } else
5551ed44 704 fprintf(fp, "%s\tnexthop ", _SL_);
aba5acdf 705 if (nh->rtnh_len > sizeof(*nh)) {
aba5acdf 706 parse_rtattr(tb, RTA_MAX, RTNH_DATA(nh), nh->rtnh_len - sizeof(*nh));
1e529305
RP		 707
708 if (tb[RTA_ENCAP])
709 lwt_print_encap(fp,
710 tb[RTA_ENCAP_TYPE],
711 tb[RTA_ENCAP]);
ecc509f9 712 if (tb[RTA_NEWDST]) {
5551ed44 713 fprintf(fp, "as to %s ",
d49f934c
PS		 714 format_host_rta(r->rtm_family,
715 tb[RTA_NEWDST]));
ecc509f9 716 }
aba5acdf 717 if (tb[RTA_GATEWAY]) {
5551ed44 718 fprintf(fp, "via %s ",
d49f934c
PS		 719 format_host_rta(r->rtm_family,
720 tb[RTA_GATEWAY]));
aba5acdf 721 }
93ae2835
EB		 722 if (tb[RTA_VIA]) {
723 size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2;
724 struct rtvia *via = RTA_DATA(tb[RTA_VIA]);
56f5daac 725
5551ed44 726 fprintf(fp, "via %s %s ",
93ae2835 727 family_name(via->rtvia_family),
a418e451 728 format_host(via->rtvia_family, len, via->rtvia_addr));
93ae2835 729 }
f4f6d640 730 if (tb[RTA_FLOW]) {
ff24746c 731 __u32 to = rta_getattr_u32(tb[RTA_FLOW]);
f4f6d640 732 __u32 from = to>>16;
56f5daac 733
f4f6d640 734 to &= 0xFFFF;
5551ed44 735 fprintf(fp, "realm%s ", from ? "s" : "");
f4f6d640
PM		 736 if (from) {
737 fprintf(fp, "%s/",
738 rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
739 }
5551ed44 740 fprintf(fp, "%s ",
f4f6d640
PM		 741 rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
742 }
aba5acdf
SH		 743 }
744 if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) {
5551ed44 745 fprintf(fp, "%s", ll_index_to_name(nh->rtnh_ifindex));
aba5acdf
SH		 746 if (nh->rtnh_hops != 1)
747 fprintf(fp, "(ttl>%d)", nh->rtnh_hops);
5551ed44 748 fprintf(fp, " ");
aba5acdf 749 } else {
5551ed44 750 fprintf(fp, "dev %s ", ll_index_to_name(nh->rtnh_ifindex));
ecc509f9 751 if (r->rtm_family != AF_MPLS)
5551ed44 752 fprintf(fp, "weight %d ",
ecc509f9 753 nh->rtnh_hops+1);
aba5acdf 754 }
b3ab1e68
SH		 755
756 print_rt_flags(fp, nh->rtnh_flags);
757
aba5acdf
SH		 758 len -= NLMSG_ALIGN(nh->rtnh_len);
759 nh = RTNH_NEXT(nh);
760 }
761 }
8cfc2d47
SH		 762
763 if (tb[RTA_PREF])
764 print_rt_pref(fp, rta_getattr_u8(tb[RTA_PREF]));
765
c44d18ea
RS		 766 if (tb[RTA_TTL_PROPAGATE]) {
767 fprintf(fp, "ttl-propagate ");
768 if (rta_getattr_u8(tb[RTA_TTL_PROPAGATE]))
769 fprintf(fp, "enabled");
770 else
771 fprintf(fp, "disabled");
772 }
aba5acdf
SH		 773 fprintf(fp, "\n");
774 fflush(fp);
775 return 0;
776}
777
1e529305
RP		 778static int parse_one_nh(struct nlmsghdr *n, struct rtmsg *r,
779 struct rtattr *rta, struct rtnexthop *rtnh,
d1f28cf1 780 int *argcp, char ***argvp)
aba5acdf
SH		 781{
782 int argc = *argcp;
783 char **argv = *argvp;
784
785 while (++argv, --argc > 0) {
786 if (strcmp(*argv, "via") == 0) {
4d6c3796 787 inet_prefix addr;
93ae2835 788 int family;
56f5daac 789
aba5acdf 790 NEXT_ARG();
93ae2835
EB		 791 family = read_family(*argv);
792 if (family == AF_UNSPEC)
793 family = r->rtm_family;
794 else
795 NEXT_ARG();
796 get_addr(&addr, *argv, family);
4d6c3796
VB		 797 if (r->rtm_family == AF_UNSPEC)
798 r->rtm_family = addr.family;
93ae2835
EB		 799 if (addr.family == r->rtm_family) {
800 rta_addattr_l(rta, 4096, RTA_GATEWAY, &addr.data, addr.bytelen);
801 rtnh->rtnh_len += sizeof(struct rtattr) + addr.bytelen;
802 } else {
803 rta_addattr_l(rta, 4096, RTA_VIA, &addr.family, addr.bytelen+2);
ecc509f9 804 rtnh->rtnh_len += RTA_SPACE(addr.bytelen+2);
93ae2835 805 }
aba5acdf
SH		 806 } else if (strcmp(*argv, "dev") == 0) {
807 NEXT_ARG();
808 if ((rtnh->rtnh_ifindex = ll_name_to_index(*argv)) == 0) {
809 fprintf(stderr, "Cannot find device \"%s\"\n", *argv);
2f406f2d 810 return -1;
aba5acdf
SH		 811 }
812 } else if (strcmp(*argv, "weight") == 0) {
56f5daac
SH		 813 unsigned int w;
814
aba5acdf
SH		 815 NEXT_ARG();
816 if (get_unsigned(&w, *argv, 0) || w == 0 || w > 256)
817 invarg("\"weight\" is invalid\n", *argv);
818 rtnh->rtnh_hops = w - 1;
819 } else if (strcmp(*argv, "onlink") == 0) {
820 rtnh->rtnh_flags |= RTNH_F_ONLINK;
f4f6d640
PM		 821 } else if (matches(*argv, "realms") == 0) {
822 __u32 realm;
56f5daac 823
f4f6d640 824 NEXT_ARG();
d583e88e 825 if (get_rt_realms_or_raw(&realm, *argv))
f4f6d640
PM		 826 invarg("\"realm\" value is invalid\n", *argv);
827 rta_addattr32(rta, 4096, RTA_FLOW, realm);
828 rtnh->rtnh_len += sizeof(struct rtattr) + 4;
1e529305
RP		 829 } else if (strcmp(*argv, "encap") == 0) {
830 int len = rta->rta_len;
831
832 lwt_parse_encap(rta, 4096, &argc, &argv);
833 rtnh->rtnh_len += rta->rta_len - len;
ecc509f9
RP		 834 } else if (strcmp(*argv, "as") == 0) {
835 inet_prefix addr;
836
837 NEXT_ARG();
838 if (strcmp(*argv, "to") == 0)
839 NEXT_ARG();
840 get_addr(&addr, *argv, r->rtm_family);
841 rta_addattr_l(rta, 4096, RTA_NEWDST, &addr.data,
842 addr.bytelen);
843 rtnh->rtnh_len += sizeof(struct rtattr) + addr.bytelen;
aba5acdf
SH		 844 } else
845 break;
846 }
847 *argcp = argc;
848 *argvp = argv;
849 return 0;
850}
851
d1f28cf1
SH		 852static int parse_nexthops(struct nlmsghdr *n, struct rtmsg *r,
853 int argc, char **argv)
aba5acdf
SH		 854{
855 char buf[1024];
56f5daac 856 struct rtattr *rta = (void *)buf;
aba5acdf
SH		 857 struct rtnexthop *rtnh;
858
859 rta->rta_type = RTA_MULTIPATH;
860 rta->rta_len = RTA_LENGTH(0);
861 rtnh = RTA_DATA(rta);
862
863 while (argc > 0) {
864 if (strcmp(*argv, "nexthop") != 0) {
865 fprintf(stderr, "Error: \"nexthop\" or end of line is expected instead of \"%s\"\n", *argv);
866 exit(-1);
867 }
868 if (argc <= 1) {
869 fprintf(stderr, "Error: unexpected end of line after \"nexthop\"\n");
870 exit(-1);
871 }
872 memset(rtnh, 0, sizeof(*rtnh));
873 rtnh->rtnh_len = sizeof(*rtnh);
874 rta->rta_len += rtnh->rtnh_len;
1e529305 875 parse_one_nh(n, r, rta, rtnh, &argc, &argv);
aba5acdf
SH		 876 rtnh = RTNH_NEXT(rtnh);
877 }
878
879 if (rta->rta_len > RTA_LENGTH(0))
880 addattr_l(n, 1024, RTA_MULTIPATH, RTA_DATA(rta), RTA_PAYLOAD(rta));
881 return 0;
882}
883
56f5daac 884static int iproute_modify(int cmd, unsigned int flags, int argc, char **argv)
aba5acdf 885{
aba5acdf 886 struct {
4806867a
SH		 887 struct nlmsghdr n;
888 struct rtmsg r;
56f5daac 889 char buf[1024];
d17b136f
PS		 890 } req = {
891 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
892 .n.nlmsg_flags = NLM_F_REQUEST | flags,
893 .n.nlmsg_type = cmd,
894 .r.rtm_family = preferred_family,
895 .r.rtm_table = RT_TABLE_MAIN,
896 .r.rtm_scope = RT_SCOPE_NOWHERE,
897 };
aba5acdf 898 char mxbuf[256];
56f5daac
SH		 899 struct rtattr *mxrta = (void *)mxbuf;
900 unsigned int mxlock = 0;
aba5acdf
SH		 901 char *d = NULL;
902 int gw_ok = 0;
903 int dst_ok = 0;
904 int nhs_ok = 0;
905 int scope_ok = 0;
906 int table_ok = 0;
54e0b2e7 907 int raw = 0;
f638e9f7 908 int type_ok = 0;
aba5acdf 909
aba5acdf
SH		 910 if (cmd != RTM_DELROUTE) {
911 req.r.rtm_protocol = RTPROT_BOOT;
912 req.r.rtm_scope = RT_SCOPE_UNIVERSE;
913 req.r.rtm_type = RTN_UNICAST;
914 }
915
916 mxrta->rta_type = RTA_METRICS;
917 mxrta->rta_len = RTA_LENGTH(0);
918
919 while (argc > 0) {
920 if (strcmp(*argv, "src") == 0) {
921 inet_prefix addr;
56f5daac 922
aba5acdf
SH		 923 NEXT_ARG();
924 get_addr(&addr, *argv, req.r.rtm_family);
925 if (req.r.rtm_family == AF_UNSPEC)
926 req.r.rtm_family = addr.family;
21fef525
SH		 927 addattr_l(&req.n, sizeof(req),
928 RTA_PREFSRC, &addr.data, addr.bytelen);
6f7a9f4d
EB		 929 } else if (strcmp(*argv, "as") == 0) {
930 inet_prefix addr;
56f5daac 931
6f7a9f4d
EB		 932 NEXT_ARG();
933 if (strcmp(*argv, "to") == 0) {
934 NEXT_ARG();
935 }
936 get_addr(&addr, *argv, req.r.rtm_family);
937 if (req.r.rtm_family == AF_UNSPEC)
938 req.r.rtm_family = addr.family;
21fef525
SH		 939 addattr_l(&req.n, sizeof(req),
940 RTA_NEWDST, &addr.data, addr.bytelen);
aba5acdf
SH		 941 } else if (strcmp(*argv, "via") == 0) {
942 inet_prefix addr;
93ae2835 943 int family;
56f5daac 944
11f2c753
DA		 945 if (gw_ok) {
946 invarg("use nexthop syntax to specify multiple via\n",
947 *argv);
948 }
aba5acdf
SH		 949 gw_ok = 1;
950 NEXT_ARG();
93ae2835
EB		 951 family = read_family(*argv);
952 if (family == AF_UNSPEC)
953 family = req.r.rtm_family;
954 else
955 NEXT_ARG();
956 get_addr(&addr, *argv, family);
aba5acdf
SH		 957 if (req.r.rtm_family == AF_UNSPEC)
958 req.r.rtm_family = addr.family;
93ae2835 959 if (addr.family == req.r.rtm_family)
ecc509f9
RP		 960 addattr_l(&req.n, sizeof(req), RTA_GATEWAY,
961 &addr.data, addr.bytelen);
93ae2835 962 else
ecc509f9
RP		 963 addattr_l(&req.n, sizeof(req), RTA_VIA,
964 &addr.family, addr.bytelen+2);
aba5acdf
SH		 965 } else if (strcmp(*argv, "from") == 0) {
966 inet_prefix addr;
56f5daac 967
aba5acdf
SH		 968 NEXT_ARG();
969 get_prefix(&addr, *argv, req.r.rtm_family);
970 if (req.r.rtm_family == AF_UNSPEC)
971 req.r.rtm_family = addr.family;
972 if (addr.bytelen)
973 addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen);
974 req.r.rtm_src_len = addr.bitlen;
975 } else if (strcmp(*argv, "tos") == 0 ||
976 matches(*argv, "dsfield") == 0) {
977 __u32 tos;
56f5daac 978
aba5acdf
SH		 979 NEXT_ARG();
980 if (rtnl_dsfield_a2n(&tos, *argv))
981 invarg("\"tos\" value is invalid\n", *argv);
982 req.r.rtm_tos = tos;
56f5daac 983 } else if (strcmp(*argv, "expires") == 0) {
68eede25 984 __u32 expires;
56f5daac 985
68eede25
HL		 986 NEXT_ARG();
987 if (get_u32(&expires, *argv, 0))
988 invarg("\"expires\" value is invalid\n", *argv);
eecc0069 989 addattr32(&req.n, sizeof(req), RTA_EXPIRES, expires);
aba5acdf
SH		 990 } else if (matches(*argv, "metric") == 0 ||
991 matches(*argv, "priority") == 0 ||
194e9b85 992 strcmp(*argv, "preference") == 0) {
aba5acdf 993 __u32 metric;
56f5daac 994
aba5acdf
SH		 995 NEXT_ARG();
996 if (get_u32(&metric, *argv, 0))
997 invarg("\"metric\" value is invalid\n", *argv);
998 addattr32(&req.n, sizeof(req), RTA_PRIORITY, metric);
999 } else if (strcmp(*argv, "scope") == 0) {
f332d169 1000 __u32 scope = 0;
56f5daac 1001
aba5acdf
SH		 1002 NEXT_ARG();
1003 if (rtnl_rtscope_a2n(&scope, *argv))
1004 invarg("invalid \"scope\" value\n", *argv);
1005 req.r.rtm_scope = scope;
1006 scope_ok = 1;
1007 } else if (strcmp(*argv, "mtu") == 0) {
56f5daac
SH		 1008 unsigned int mtu;
1009
aba5acdf
SH		 1010 NEXT_ARG();
1011 if (strcmp(*argv, "lock") == 0) {
1012 mxlock |= (1<<RTAX_MTU);
1013 NEXT_ARG();
1014 }
1015 if (get_unsigned(&mtu, *argv, 0))
1016 invarg("\"mtu\" value is invalid\n", *argv);
1017 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
71e58151 1018 } else if (strcmp(*argv, "hoplimit") == 0) {
56f5daac
SH		 1019 unsigned int hoplimit;
1020
71e58151
GBY		 1021 NEXT_ARG();
1022 if (strcmp(*argv, "lock") == 0) {
1023 mxlock |= (1<<RTAX_HOPLIMIT);
1024 NEXT_ARG();
1025 }
ea6cbab7 1026 if (get_unsigned(&hoplimit, *argv, 0) || hoplimit > 255)
71e58151
GBY		 1027 invarg("\"hoplimit\" value is invalid\n", *argv);
1028 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_HOPLIMIT, hoplimit);
aba5acdf 1029 } else if (strcmp(*argv, "advmss") == 0) {
56f5daac
SH		 1030 unsigned int mss;
1031
aba5acdf
SH		 1032 NEXT_ARG();
1033 if (strcmp(*argv, "lock") == 0) {
1034 mxlock |= (1<<RTAX_ADVMSS);
1035 NEXT_ARG();
1036 }
1037 if (get_unsigned(&mss, *argv, 0))
1038 invarg("\"mss\" value is invalid\n", *argv);
1039 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss);
aba5acdf 1040 } else if (matches(*argv, "reordering") == 0) {
56f5daac
SH		 1041 unsigned int reord;
1042
aba5acdf
SH		 1043 NEXT_ARG();
1044 if (strcmp(*argv, "lock") == 0) {
1045 mxlock |= (1<<RTAX_REORDERING);
1046 NEXT_ARG();
1047 }
1048 if (get_unsigned(&reord, *argv, 0))
1049 invarg("\"reordering\" value is invalid\n", *argv);
1050 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_REORDERING, reord);
aba5acdf 1051 } else if (strcmp(*argv, "rtt") == 0) {
56f5daac
SH		 1052 unsigned int rtt;
1053
aba5acdf
SH		 1054 NEXT_ARG();
1055 if (strcmp(*argv, "lock") == 0) {
1056 mxlock |= (1<<RTAX_RTT);
1057 NEXT_ARG();
1058 }
81d03dc3 1059 if (get_time_rtt(&rtt, *argv, &raw))
aba5acdf 1060 invarg("\"rtt\" value is invalid\n", *argv);
0612519e 1061 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTT,
54e0b2e7
RJ		 1062 (raw) ? rtt : rtt * 8);
1063 } else if (strcmp(*argv, "rto_min") == 0) {
56f5daac
SH		 1064 unsigned int rto_min;
1065
54e0b2e7
RJ		 1066 NEXT_ARG();
1067 mxlock |= (1<<RTAX_RTO_MIN);
81d03dc3 1068 if (get_time_rtt(&rto_min, *argv, &raw))
54e0b2e7
RJ		 1069 invarg("\"rto_min\" value is invalid\n",
1070 *argv);
1071 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTO_MIN,
1072 rto_min);
aba5acdf 1073 } else if (matches(*argv, "window") == 0) {
56f5daac
SH		 1074 unsigned int win;
1075
aba5acdf
SH		 1076 NEXT_ARG();
1077 if (strcmp(*argv, "lock") == 0) {
1078 mxlock |= (1<<RTAX_WINDOW);
1079 NEXT_ARG();
1080 }
1081 if (get_unsigned(&win, *argv, 0))
1082 invarg("\"window\" value is invalid\n", *argv);
1083 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_WINDOW, win);
1084 } else if (matches(*argv, "cwnd") == 0) {
56f5daac
SH		 1085 unsigned int win;
1086
aba5acdf
SH		 1087 NEXT_ARG();
1088 if (strcmp(*argv, "lock") == 0) {
1089 mxlock |= (1<<RTAX_CWND);
1090 NEXT_ARG();
1091 }
1092 if (get_unsigned(&win, *argv, 0))
1093 invarg("\"cwnd\" value is invalid\n", *argv);
1094 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_CWND, win);
a1f1143e 1095 } else if (matches(*argv, "initcwnd") == 0) {
56f5daac
SH		 1096 unsigned int win;
1097
a1f1143e
VW		 1098 NEXT_ARG();
1099 if (strcmp(*argv, "lock") == 0) {
1100 mxlock |= (1<<RTAX_INITCWND);
1101 NEXT_ARG();
1102 }
1103 if (get_unsigned(&win, *argv, 0))
1104 invarg("\"initcwnd\" value is invalid\n", *argv);
21fef525
SH		 1105 rta_addattr32(mxrta, sizeof(mxbuf),
1106 RTAX_INITCWND, win);
f5fd8003 1107 } else if (matches(*argv, "initrwnd") == 0) {
56f5daac
SH		 1108 unsigned int win;
1109
f5fd8003 1110 NEXT_ARG();
1111 if (strcmp(*argv, "lock") == 0) {
1112 mxlock |= (1<<RTAX_INITRWND);
1113 NEXT_ARG();
1114 }
1115 if (get_unsigned(&win, *argv, 0))
1116 invarg("\"initrwnd\" value is invalid\n", *argv);
21fef525
SH		 1117 rta_addattr32(mxrta, sizeof(mxbuf),
1118 RTAX_INITRWND, win);
29d1f730
FW		 1119 } else if (matches(*argv, "features") == 0) {
1120 unsigned int features = 0;
1121
1122 while (argc > 0) {
1123 NEXT_ARG();
1124
1125 if (strcmp(*argv, "ecn") == 0)
1126 features |= RTAX_FEATURE_ECN;
1127 else
1128 invarg("\"features\" value not valid\n", *argv);
1129 break;
1130 }
1131
21fef525
SH		 1132 rta_addattr32(mxrta, sizeof(mxbuf),
1133 RTAX_FEATURES, features);
b37f2c89 1134 } else if (matches(*argv, "quickack") == 0) {
56f5daac
SH		 1135 unsigned int quickack;
1136
b37f2c89
CW		 1137 NEXT_ARG();
1138 if (get_unsigned(&quickack, *argv, 0))
1139 invarg("\"quickack\" value is invalid\n", *argv);
1140 if (quickack != 1 && quickack != 0)
1141 invarg("\"quickack\" value should be 0 or 1\n", *argv);
21fef525
SH		 1142 rta_addattr32(mxrta, sizeof(mxbuf),
1143 RTAX_QUICKACK, quickack);
6ef87f9c
DB		 1144 } else if (matches(*argv, "congctl") == 0) {
1145 NEXT_ARG();
1146 if (strcmp(*argv, "lock") == 0) {
1147 mxlock |= 1 << RTAX_CC_ALGO;
1148 NEXT_ARG();
1149 }
1150 rta_addattr_l(mxrta, sizeof(mxbuf), RTAX_CC_ALGO, *argv,
1151 strlen(*argv));
aba5acdf 1152 } else if (matches(*argv, "rttvar") == 0) {
56f5daac
SH		 1153 unsigned int win;
1154
aba5acdf
SH		 1155 NEXT_ARG();
1156 if (strcmp(*argv, "lock") == 0) {
1157 mxlock |= (1<<RTAX_RTTVAR);
1158 NEXT_ARG();
1159 }
81d03dc3 1160 if (get_time_rtt(&win, *argv, &raw))
aba5acdf 1161 invarg("\"rttvar\" value is invalid\n", *argv);
54e0b2e7
RJ		 1162 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTTVAR,
1163 (raw) ? win : win * 4);
aba5acdf 1164 } else if (matches(*argv, "ssthresh") == 0) {
56f5daac
SH		 1165 unsigned int win;
1166
aba5acdf
SH		 1167 NEXT_ARG();
1168 if (strcmp(*argv, "lock") == 0) {
1169 mxlock |= (1<<RTAX_SSTHRESH);
1170 NEXT_ARG();
1171 }
1172 if (get_unsigned(&win, *argv, 0))
1173 invarg("\"ssthresh\" value is invalid\n", *argv);
1174 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_SSTHRESH, win);
1175 } else if (matches(*argv, "realms") == 0) {
1176 __u32 realm;
56f5daac 1177
aba5acdf 1178 NEXT_ARG();
d583e88e 1179 if (get_rt_realms_or_raw(&realm, *argv))
aba5acdf
SH		 1180 invarg("\"realm\" value is invalid\n", *argv);
1181 addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
1182 } else if (strcmp(*argv, "onlink") == 0) {
1183 req.r.rtm_flags |= RTNH_F_ONLINK;
aba5acdf
SH		 1184 } else if (strcmp(*argv, "nexthop") == 0) {
1185 nhs_ok = 1;
1186 break;
1187 } else if (matches(*argv, "protocol") == 0) {
f332d169 1188 __u32 prot;
56f5daac 1189
aba5acdf
SH		 1190 NEXT_ARG();
1191 if (rtnl_rtprot_a2n(&prot, *argv))
1192 invarg("\"protocol\" value is invalid\n", *argv);
1193 req.r.rtm_protocol = prot;
aba5acdf 1194 } else if (matches(*argv, "table") == 0) {
f332d169 1195 __u32 tid;
56f5daac 1196
aba5acdf
SH		 1197 NEXT_ARG();
1198 if (rtnl_rttable_a2n(&tid, *argv))
1199 invarg("\"table\" value is invalid\n", *argv);
34e95647
PM		 1200 if (tid < 256)
1201 req.r.rtm_table = tid;
1202 else {
1203 req.r.rtm_table = RT_TABLE_UNSPEC;
1204 addattr32(&req.n, sizeof(req), RTA_TABLE, tid);
1205 }
aba5acdf 1206 table_ok = 1;
0130f012
DA		 1207 } else if (matches(*argv, "vrf") == 0) {
1208 __u32 tid;
1209
1210 NEXT_ARG();
1211 tid = ipvrf_get_table(*argv);
1212 if (tid == 0)
1213 invarg("Invalid VRF\n", *argv);
1214 if (tid < 256)
1215 req.r.rtm_table = tid;
1216 else {
1217 req.r.rtm_table = RT_TABLE_UNSPEC;
1218 addattr32(&req.n, sizeof(req), RTA_TABLE, tid);
1219 }
1220 table_ok = 1;
aba5acdf
SH		 1221 } else if (strcmp(*argv, "dev") == 0 ||
1222 strcmp(*argv, "oif") == 0) {
1223 NEXT_ARG();
1224 d = *argv;
194e9b85
LR		 1225 } else if (matches(*argv, "pref") == 0) {
1226 __u8 pref;
56f5daac 1227
194e9b85
LR		 1228 NEXT_ARG();
1229 if (strcmp(*argv, "low") == 0)
1230 pref = ICMPV6_ROUTER_PREF_LOW;
1231 else if (strcmp(*argv, "medium") == 0)
1232 pref = ICMPV6_ROUTER_PREF_MEDIUM;
1233 else if (strcmp(*argv, "high") == 0)
1234 pref = ICMPV6_ROUTER_PREF_HIGH;
1235 else if (get_u8(&pref, *argv, 0))
1236 invarg("\"pref\" value is invalid\n", *argv);
1237 addattr8(&req.n, sizeof(req), RTA_PREF, pref);
1e529305
RP		 1238 } else if (strcmp(*argv, "encap") == 0) {
1239 char buf[1024];
56f5daac 1240 struct rtattr *rta = (void *)buf;
1e529305
RP		 1241
1242 rta->rta_type = RTA_ENCAP;
1243 rta->rta_len = RTA_LENGTH(0);
1244
1245 lwt_parse_encap(rta, sizeof(buf), &argc, &argv);
1246
1247 if (rta->rta_len > RTA_LENGTH(0))
21fef525
SH		 1248 addraw_l(&req.n, 1024
1249 , RTA_DATA(rta), RTA_PAYLOAD(rta));
c44d18ea
RS		 1250 } else if (strcmp(*argv, "ttl-propagate") == 0) {
1251 __u8 ttl_prop;
1252
1253 NEXT_ARG();
1254 if (matches(*argv, "enabled") == 0)
1255 ttl_prop = 1;
1256 else if (matches(*argv, "disabled") == 0)
1257 ttl_prop = 0;
1258 else
1259 invarg("\"ttl-propagate\" value is invalid\n",
1260 *argv);
1261
1262 addattr8(&req.n, sizeof(req), RTA_TTL_PROPAGATE,
1263 ttl_prop);
e54ed380
CP		 1264 } else if (matches(*argv, "fastopen_no_cookie") == 0) {
1265 unsigned int fastopen_no_cookie;
1266
1267 NEXT_ARG();
1268 if (get_unsigned(&fastopen_no_cookie, *argv, 0))
1269 invarg("\"fastopen_no_cookie\" value is invalid\n", *argv);
1270 if (fastopen_no_cookie != 1 && fastopen_no_cookie != 0)
1271 invarg("\"fastopen_no_cookie\" value should be 0 or 1\n", *argv);
1272 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_FASTOPEN_NO_COOKIE, fastopen_no_cookie);
aba5acdf
SH		 1273 } else {
1274 int type;
1275 inet_prefix dst;
1276
1277 if (strcmp(*argv, "to") == 0) {
1278 NEXT_ARG();
1279 }
1280 if ((**argv < '0' || **argv > '9') &&
1281 rtnl_rtntype_a2n(&type, *argv) == 0) {
1282 NEXT_ARG();
1283 req.r.rtm_type = type;
f638e9f7 1284 type_ok = 1;
aba5acdf
SH		 1285 }
1286
1287 if (matches(*argv, "help") == 0)
1288 usage();
1289 if (dst_ok)
1290 duparg2("to", *argv);
1291 get_prefix(&dst, *argv, req.r.rtm_family);
1292 if (req.r.rtm_family == AF_UNSPEC)
1293 req.r.rtm_family = dst.family;
1294 req.r.rtm_dst_len = dst.bitlen;
1295 dst_ok = 1;
1296 if (dst.bytelen)
21fef525
SH		 1297 addattr_l(&req.n, sizeof(req),
1298 RTA_DST, &dst.data, dst.bytelen);
aba5acdf
SH		 1299 }
1300 argc--; argv++;
1301 }
1302
922b4822
PS		 1303 if (!dst_ok)
1304 usage();
1305
7b201d60 1306 if (d) {
aba5acdf
SH		 1307 int idx;
1308
7b201d60
JS		 1309 if ((idx = ll_name_to_index(d)) == 0) {
1310 fprintf(stderr, "Cannot find device \"%s\"\n", d);
1311 return -1;
aba5acdf 1312 }
7b201d60 1313 addattr32(&req.n, sizeof(req), RTA_OIF, idx);
aba5acdf
SH		 1314 }
1315
1316 if (mxrta->rta_len > RTA_LENGTH(0)) {
1317 if (mxlock)
1318 rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock);
1319 addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
1320 }
1321
1322 if (nhs_ok)
1323 parse_nexthops(&req.n, &req.r, argc, argv);
1324
f638e9f7
RP		 1325 if (req.r.rtm_family == AF_UNSPEC)
1326 req.r.rtm_family = AF_INET;
1327
aba5acdf
SH		 1328 if (!table_ok) {
1329 if (req.r.rtm_type == RTN_LOCAL ||
1330 req.r.rtm_type == RTN_BROADCAST ||
1331 req.r.rtm_type == RTN_NAT ||
1332 req.r.rtm_type == RTN_ANYCAST)
1333 req.r.rtm_table = RT_TABLE_LOCAL;
1334 }
1335 if (!scope_ok) {
f638e9f7
RP		 1336 if (req.r.rtm_family == AF_INET6 ||
1337 req.r.rtm_family == AF_MPLS)
1338 req.r.rtm_scope = RT_SCOPE_UNIVERSE;
1339 else if (req.r.rtm_type == RTN_LOCAL ||
1340 req.r.rtm_type == RTN_NAT)
aba5acdf
SH		 1341 req.r.rtm_scope = RT_SCOPE_HOST;
1342 else if (req.r.rtm_type == RTN_BROADCAST ||
1343 req.r.rtm_type == RTN_MULTICAST ||
1344 req.r.rtm_type == RTN_ANYCAST)
1345 req.r.rtm_scope = RT_SCOPE_LINK;
1346 else if (req.r.rtm_type == RTN_UNICAST ||
1347 req.r.rtm_type == RTN_UNSPEC) {
1348 if (cmd == RTM_DELROUTE)
1349 req.r.rtm_scope = RT_SCOPE_NOWHERE;
1350 else if (!gw_ok && !nhs_ok)
1351 req.r.rtm_scope = RT_SCOPE_LINK;
1352 }
1353 }
1354
f638e9f7
RP		 1355 if (!type_ok && req.r.rtm_family == AF_MPLS)
1356 req.r.rtm_type = RTN_UNICAST;
aba5acdf 1357
86bf43c7 1358 if (rtnl_talk(&rth, &req.n, NULL) < 0)
d58ba4ba 1359 return -2;
aba5acdf
SH		 1360
1361 return 0;
1362}
1363
1364static int rtnl_rtcache_request(struct rtnl_handle *rth, int family)
1365{
1366 struct {
1367 struct nlmsghdr nlh;
1368 struct rtmsg rtm;
d17b136f
PS		 1369 } req = {
1370 .nlh.nlmsg_len = sizeof(req),
1371 .nlh.nlmsg_type = RTM_GETROUTE,
1372 .nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_REQUEST,
1373 .nlh.nlmsg_seq = rth->dump = ++rth->seq,
1374 .rtm.rtm_family = family,
1375 .rtm.rtm_flags = RTM_F_CLONED,
1376 };
1377 struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
aba5acdf 1378
56f5daac 1379 return sendto(rth->fd, (void *)&req, sizeof(req), 0, (struct sockaddr *)&nladdr, sizeof(nladdr));
aba5acdf
SH		 1380}
1381
1382static int iproute_flush_cache(void)
1383{
1384#define ROUTE_FLUSH_PATH "/proc/sys/net/ipv4/route/flush"
1385
1386 int len;
56f5daac 1387 int flush_fd = open(ROUTE_FLUSH_PATH, O_WRONLY);
aba5acdf
SH		 1388 char *buffer = "-1";
1389
1390 if (flush_fd < 0) {
56f5daac 1391 fprintf(stderr, "Cannot open \"%s\": %s\n",
9827fa57 1392 ROUTE_FLUSH_PATH, strerror(errno));
aba5acdf
SH		 1393 return -1;
1394 }
1395
56f5daac 1396 len = strlen(buffer);
ae665a52 1397
56f5daac
SH		 1398 if ((write(flush_fd, (void *)buffer, len)) < len) {
1399 fprintf(stderr, "Cannot flush routing cache\n");
25352af7 1400 close(flush_fd);
aba5acdf
SH		 1401 return -1;
1402 }
1403 close(flush_fd);
1404 return 0;
1405}
1406
76c61b34
PE		 1407static __u32 route_dump_magic = 0x45311224;
1408
d1f28cf1
SH		 1409static int save_route(const struct sockaddr_nl *who, struct nlmsghdr *n,
1410 void *arg)
f4ff11e3
DS		 1411{
1412 int ret;
1413 int len = n->nlmsg_len;
1414 struct rtmsg *r = NLMSG_DATA(n);
1415 struct rtattr *tb[RTA_MAX+1];
f3a2ddc1 1416 int host_len;
f4ff11e3 1417
f3a2ddc1 1418 host_len = af_bit_len(r->rtm_family);
f4ff11e3
DS		 1419 len -= NLMSG_LENGTH(sizeof(*r));
1420 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
1421
1422 if (!filter_nlmsg(n, tb, host_len))
1423 return 0;
1424
1425 ret = write(STDOUT_FILENO, n, n->nlmsg_len);
1426 if ((ret > 0) && (ret != n->nlmsg_len)) {
1427 fprintf(stderr, "Short write while saving nlmsg\n");
1428 ret = -EIO;
1429 }
1430
1431 return ret == n->nlmsg_len ? 0 : ret;
1432}
aba5acdf 1433
76c61b34
PE		 1434static int save_route_prep(void)
1435{
1436 int ret;
1437
1438 if (isatty(STDOUT_FILENO)) {
14645ec2 1439 fprintf(stderr, "Not sending a binary stream to stdout\n");
76c61b34
PE		 1440 return -1;
1441 }
1442
1443 ret = write(STDOUT_FILENO, &route_dump_magic, sizeof(route_dump_magic));
1444 if (ret != sizeof(route_dump_magic)) {
1445 fprintf(stderr, "Can't write magic to dump file\n");
1446 return -1;
1447 }
1448
1449 return 0;
1450}
1451
f4ff11e3 1452static int iproute_list_flush_or_save(int argc, char **argv, int action)
aba5acdf
SH		 1453{
1454 int do_ipv6 = preferred_family;
aba5acdf
SH		 1455 char *id = NULL;
1456 char *od = NULL;
b0373bfb 1457 unsigned int mark = 0;
f4ff11e3 1458 rtnl_filter_t filter_fn;
2f406f2d 1459 int ret;
f4ff11e3 1460
76c61b34
PE		 1461 if (action == IPROUTE_SAVE) {
1462 if (save_route_prep())
1463 return -1;
1464
f4ff11e3 1465 filter_fn = save_route;
76c61b34 1466 } else
f4ff11e3 1467 filter_fn = print_route;
aba5acdf 1468
093b7646 1469 iproute_reset_filter(0);
aba5acdf
SH		 1470 filter.tb = RT_TABLE_MAIN;
1471
f4ff11e3 1472 if ((action == IPROUTE_FLUSH) && argc <= 0) {
aba5acdf
SH		 1473 fprintf(stderr, "\"ip route flush\" requires arguments.\n");
1474 return -1;
1475 }
1476
1477 while (argc > 0) {
1478 if (matches(*argv, "table") == 0) {
f332d169 1479 __u32 tid;
56f5daac 1480
aba5acdf
SH		 1481 NEXT_ARG();
1482 if (rtnl_rttable_a2n(&tid, *argv)) {
1483 if (strcmp(*argv, "all") == 0) {
bd4bcdad 1484 filter.tb = 0;
aba5acdf 1485 } else if (strcmp(*argv, "cache") == 0) {
bd4bcdad 1486 filter.cloned = 1;
aba5acdf
SH		 1487 } else if (strcmp(*argv, "help") == 0) {
1488 usage();
1489 } else {
1490 invarg("table id value is invalid\n", *argv);
1491 }
bd4bcdad
PM		 1492 } else
1493 filter.tb = tid;
0130f012
DA		 1494 } else if (matches(*argv, "vrf") == 0) {
1495 __u32 tid;
1496
1497 NEXT_ARG();
1498 tid = ipvrf_get_table(*argv);
1499 if (tid == 0)
1500 invarg("Invalid VRF\n", *argv);
1501 filter.tb = tid;
1502 filter.typemask = ~(1 << RTN_LOCAL | 1<<RTN_BROADCAST);
aba5acdf
SH		 1503 } else if (matches(*argv, "cached") == 0 ||
1504 matches(*argv, "cloned") == 0) {
bd4bcdad 1505 filter.cloned = 1;
aba5acdf
SH		 1506 } else if (strcmp(*argv, "tos") == 0 ||
1507 matches(*argv, "dsfield") == 0) {
1508 __u32 tos;
56f5daac 1509
aba5acdf
SH		 1510 NEXT_ARG();
1511 if (rtnl_dsfield_a2n(&tos, *argv))
1512 invarg("TOS value is invalid\n", *argv);
1513 filter.tos = tos;
1514 filter.tosmask = -1;
1515 } else if (matches(*argv, "protocol") == 0) {
f332d169 1516 __u32 prot = 0;
56f5daac 1517
aba5acdf
SH		 1518 NEXT_ARG();
1519 filter.protocolmask = -1;
1520 if (rtnl_rtprot_a2n(&prot, *argv)) {
1521 if (strcmp(*argv, "all") != 0)
1522 invarg("invalid \"protocol\"\n", *argv);
1523 prot = 0;
1524 filter.protocolmask = 0;
1525 }
1526 filter.protocol = prot;
1527 } else if (matches(*argv, "scope") == 0) {
f332d169 1528 __u32 scope = 0;
56f5daac 1529
aba5acdf
SH		 1530 NEXT_ARG();
1531 filter.scopemask = -1;
1532 if (rtnl_rtscope_a2n(&scope, *argv)) {
1533 if (strcmp(*argv, "all") != 0)
1534 invarg("invalid \"scope\"\n", *argv);
1535 scope = RT_SCOPE_NOWHERE;
1536 filter.scopemask = 0;
1537 }
1538 filter.scope = scope;
1539 } else if (matches(*argv, "type") == 0) {
1540 int type;
56f5daac 1541
aba5acdf 1542 NEXT_ARG();
aba5acdf
SH		 1543 if (rtnl_rtntype_a2n(&type, *argv))
1544 invarg("node type value is invalid\n", *argv);
d84b1878 1545 filter.typemask = (1<<type);
aba5acdf
SH		 1546 } else if (strcmp(*argv, "dev") == 0 ||
1547 strcmp(*argv, "oif") == 0) {
1548 NEXT_ARG();
1549 od = *argv;
1550 } else if (strcmp(*argv, "iif") == 0) {
1551 NEXT_ARG();
1552 id = *argv;
b0373bfb
ED		 1553 } else if (strcmp(*argv, "mark") == 0) {
1554 NEXT_ARG();
7c66d898
PS		 1555 if (get_unsigned(&mark, *argv, 0))
1556 invarg("invalid mark value", *argv);
b0373bfb 1557 filter.markmask = -1;
ed7fdc95
AZ		 1558 } else if (matches(*argv, "metric") == 0 ||
1559 matches(*argv, "priority") == 0 ||
1560 strcmp(*argv, "preference") == 0) {
1561 __u32 metric;
1562
1563 NEXT_ARG();
1564 if (get_u32(&metric, *argv, 0))
1565 invarg("\"metric\" value is invalid\n", *argv);
1566 filter.metric = metric;
1567 filter.metricmask = -1;
aba5acdf 1568 } else if (strcmp(*argv, "via") == 0) {
93ae2835 1569 int family;
56f5daac 1570
aba5acdf 1571 NEXT_ARG();
93ae2835
EB		 1572 family = read_family(*argv);
1573 if (family == AF_UNSPEC)
1574 family = do_ipv6;
1575 else
1576 NEXT_ARG();
1577 get_prefix(&filter.rvia, *argv, family);
aba5acdf
SH		 1578 } else if (strcmp(*argv, "src") == 0) {
1579 NEXT_ARG();
1580 get_prefix(&filter.rprefsrc, *argv, do_ipv6);
1581 } else if (matches(*argv, "realms") == 0) {
1582 __u32 realm;
56f5daac 1583
aba5acdf 1584 NEXT_ARG();
d583e88e 1585 if (get_rt_realms_or_raw(&realm, *argv))
aba5acdf
SH		 1586 invarg("invalid realms\n", *argv);
1587 filter.realm = realm;
1588 filter.realmmask = ~0U;
1589 if ((filter.realm&0xFFFF) == 0 &&
1590 (*argv)[strlen(*argv) - 1] == '/')
1591 filter.realmmask &= ~0xFFFF;
1592 if ((filter.realm&0xFFFF0000U) == 0 &&
1593 (strchr(*argv, '/') == NULL ||
1594 (*argv)[0] == '/'))
1595 filter.realmmask &= ~0xFFFF0000U;
1596 } else if (matches(*argv, "from") == 0) {
1597 NEXT_ARG();
1598 if (matches(*argv, "root") == 0) {
1599 NEXT_ARG();
1600 get_prefix(&filter.rsrc, *argv, do_ipv6);
1601 } else if (matches(*argv, "match") == 0) {
1602 NEXT_ARG();
1603 get_prefix(&filter.msrc, *argv, do_ipv6);
1604 } else {
1605 if (matches(*argv, "exact") == 0) {
1606 NEXT_ARG();
1607 }
1608 get_prefix(&filter.msrc, *argv, do_ipv6);
1609 filter.rsrc = filter.msrc;
1610 }
1611 } else {
1612 if (matches(*argv, "to") == 0) {
1613 NEXT_ARG();
1614 }
1615 if (matches(*argv, "root") == 0) {
1616 NEXT_ARG();
1617 get_prefix(&filter.rdst, *argv, do_ipv6);
1618 } else if (matches(*argv, "match") == 0) {
1619 NEXT_ARG();
1620 get_prefix(&filter.mdst, *argv, do_ipv6);
1621 } else {
1622 if (matches(*argv, "exact") == 0) {
1623 NEXT_ARG();
1624 }
1625 get_prefix(&filter.mdst, *argv, do_ipv6);
1626 filter.rdst = filter.mdst;
1627 }
1628 }
1629 argc--; argv++;
1630 }
1631
1632 if (do_ipv6 == AF_UNSPEC && filter.tb)
1633 do_ipv6 = AF_INET;
1634
aba5acdf
SH		 1635 if (id || od) {
1636 int idx;
1637
1638 if (id) {
1639 if ((idx = ll_name_to_index(id)) == 0) {
1640 fprintf(stderr, "Cannot find device \"%s\"\n", id);
1641 return -1;
1642 }
1643 filter.iif = idx;
1644 filter.iifmask = -1;
1645 }
1646 if (od) {
1647 if ((idx = ll_name_to_index(od)) == 0) {
1648 fprintf(stderr, "Cannot find device \"%s\"\n", od);
1649 return -1;
1650 }
1651 filter.oif = idx;
1652 filter.oifmask = -1;
1653 }
1654 }
b0373bfb 1655 filter.mark = mark;
aba5acdf 1656
f4ff11e3 1657 if (action == IPROUTE_FLUSH) {
aba5acdf
SH		 1658 int round = 0;
1659 char flushb[4096-512];
33551240 1660 time_t start = time(0);
aba5acdf 1661
bd4bcdad 1662 if (filter.cloned) {
aba5acdf
SH		 1663 if (do_ipv6 != AF_INET6) {
1664 iproute_flush_cache();
1665 if (show_stats)
1666 printf("*** IPv4 routing cache is flushed.\n");
1667 }
1668 if (do_ipv6 == AF_INET)
1669 return 0;
1670 }
1671
1672 filter.flushb = flushb;
1673 filter.flushp = 0;
1674 filter.flushe = sizeof(flushb);
aba5acdf
SH		 1675
1676 for (;;) {
1677 if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) {
1678 perror("Cannot send dump request");
2f406f2d 1679 return -2;
aba5acdf
SH		 1680 }
1681 filter.flushed = 0;
cd70f3f5 1682 if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) {
aba5acdf 1683 fprintf(stderr, "Flush terminated\n");
2f406f2d 1684 return -2;
aba5acdf
SH		 1685 }
1686 if (filter.flushed == 0) {
f0b34d2d
AH		 1687 if (show_stats) {
1688 if (round == 0 && (!filter.cloned || do_ipv6 == AF_INET6))
1689 printf("Nothing to flush.\n");
1690 else
56f5daac 1691 printf("*** Flush is complete after %d round%s ***\n", round, round > 1?"s":"");
f0b34d2d 1692 }
aba5acdf
SH		 1693 fflush(stdout);
1694 return 0;
1695 }
1696 round++;
2f406f2d
ÉB		 1697 if ((ret = flush_update()) < 0)
1698 return ret;
33551240
SH		 1699
1700 if (time(0) - start > 30) {
1701 printf("\n*** Flush not completed after %ld seconds, %d entries remain ***\n",
5d8a7529 1702 (long)(time(0) - start), filter.flushed);
2f406f2d 1703 return -1;
33551240
SH		 1704 }
1705
aba5acdf
SH		 1706 if (show_stats) {
1707 printf("\n*** Round %d, deleting %d entries ***\n", round, filter.flushed);
1708 fflush(stdout);
1709 }
1710 }
1711 }
1712
bd4bcdad 1713 if (!filter.cloned) {
aba5acdf
SH		 1714 if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) {
1715 perror("Cannot send dump request");
2f406f2d 1716 return -2;
aba5acdf
SH		 1717 }
1718 } else {
1719 if (rtnl_rtcache_request(&rth, do_ipv6) < 0) {
1720 perror("Cannot send dump request");
2f406f2d 1721 return -2;
aba5acdf
SH		 1722 }
1723 }
1724
cd70f3f5 1725 if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) {
aba5acdf 1726 fprintf(stderr, "Dump terminated\n");
2f406f2d 1727 return -2;
aba5acdf
SH		 1728 }
1729
2f406f2d 1730 return 0;
aba5acdf
SH		 1731}
1732
1733
d1f28cf1 1734static int iproute_get(int argc, char **argv)
aba5acdf 1735{
aba5acdf 1736 struct {
4806867a
SH		 1737 struct nlmsghdr n;
1738 struct rtmsg r;
56f5daac 1739 char buf[1024];
d17b136f
PS		 1740 } req = {
1741 .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
1742 .n.nlmsg_flags = NLM_F_REQUEST,
1743 .n.nlmsg_type = RTM_GETROUTE,
1744 .r.rtm_family = preferred_family,
1745 };
aba5acdf
SH		 1746 char *idev = NULL;
1747 char *odev = NULL;
86bf43c7 1748 struct nlmsghdr *answer;
aba5acdf 1749 int connected = 0;
aa883d86 1750 int fib_match = 0;
aba5acdf 1751 int from_ok = 0;
b0373bfb 1752 unsigned int mark = 0;
aba5acdf 1753
093b7646 1754 iproute_reset_filter(0);
c73f3e02 1755 filter.cloned = 2;
aba5acdf 1756
aba5acdf
SH		 1757 while (argc > 0) {
1758 if (strcmp(*argv, "tos") == 0 ||
1759 matches(*argv, "dsfield") == 0) {
1760 __u32 tos;
56f5daac 1761
aba5acdf
SH		 1762 NEXT_ARG();
1763 if (rtnl_dsfield_a2n(&tos, *argv))
1764 invarg("TOS value is invalid\n", *argv);
1765 req.r.rtm_tos = tos;
1766 } else if (matches(*argv, "from") == 0) {
1767 inet_prefix addr;
56f5daac 1768
aba5acdf
SH		 1769 NEXT_ARG();
1770 if (matches(*argv, "help") == 0)
1771 usage();
1772 from_ok = 1;
1773 get_prefix(&addr, *argv, req.r.rtm_family);
1774 if (req.r.rtm_family == AF_UNSPEC)
1775 req.r.rtm_family = addr.family;
1776 if (addr.bytelen)
21fef525
SH		 1777 addattr_l(&req.n, sizeof(req), RTA_SRC,
1778 &addr.data, addr.bytelen);
aba5acdf
SH		 1779 req.r.rtm_src_len = addr.bitlen;
1780 } else if (matches(*argv, "iif") == 0) {
1781 NEXT_ARG();
1782 idev = *argv;
b0373bfb
ED		 1783 } else if (matches(*argv, "mark") == 0) {
1784 NEXT_ARG();
7c66d898
PS		 1785 if (get_unsigned(&mark, *argv, 0))
1786 invarg("invalid mark value", *argv);
aba5acdf
SH		 1787 } else if (matches(*argv, "oif") == 0 ||
1788 strcmp(*argv, "dev") == 0) {
1789 NEXT_ARG();
1790 odev = *argv;
1791 } else if (matches(*argv, "notify") == 0) {
1792 req.r.rtm_flags |= RTM_F_NOTIFY;
1793 } else if (matches(*argv, "connected") == 0) {
1794 connected = 1;
0130f012
DA		 1795 } else if (matches(*argv, "vrf") == 0) {
1796 NEXT_ARG();
1797 if (!name_is_vrf(*argv))
1798 invarg("Invalid VRF\n", *argv);
1799 odev = *argv;
82252cdc
LC		 1800 } else if (matches(*argv, "uid") == 0) {
1801 uid_t uid;
1802
1803 NEXT_ARG();
1804 if (get_unsigned(&uid, *argv, 0))
1805 invarg("invalid UID\n", *argv);
1806 addattr32(&req.n, sizeof(req), RTA_UID, uid);
aa883d86
RP		 1807 } else if (matches(*argv, "fibmatch") == 0) {
1808 fib_match = 1;
2e86ed54
RP		 1809 } else if (strcmp(*argv, "as") == 0) {
1810 inet_prefix addr;
1811
1812 NEXT_ARG();
1813 if (strcmp(*argv, "to") == 0)
1814 NEXT_ARG();
1815 get_addr(&addr, *argv, req.r.rtm_family);
1816 if (req.r.rtm_family == AF_UNSPEC)
1817 req.r.rtm_family = addr.family;
21fef525
SH		 1818 addattr_l(&req.n, sizeof(req), RTA_NEWDST,
1819 &addr.data, addr.bytelen);
aba5acdf
SH		 1820 } else {
1821 inet_prefix addr;
56f5daac 1822
aba5acdf
SH		 1823 if (strcmp(*argv, "to") == 0) {
1824 NEXT_ARG();
1825 }
1826 if (matches(*argv, "help") == 0)
1827 usage();
1828 get_prefix(&addr, *argv, req.r.rtm_family);
1829 if (req.r.rtm_family == AF_UNSPEC)
1830 req.r.rtm_family = addr.family;
1831 if (addr.bytelen)
21fef525
SH		 1832 addattr_l(&req.n, sizeof(req),
1833 RTA_DST, &addr.data, addr.bytelen);
aba5acdf
SH		 1834 req.r.rtm_dst_len = addr.bitlen;
1835 }
1836 argc--; argv++;
1837 }
1838
1839 if (req.r.rtm_dst_len == 0) {
14645ec2 1840 fprintf(stderr, "need at least a destination address\n");
2f406f2d 1841 return -1;
aba5acdf
SH		 1842 }
1843
aba5acdf
SH		 1844 if (idev || odev) {
1845 int idx;
1846
1847 if (idev) {
1848 if ((idx = ll_name_to_index(idev)) == 0) {
1849 fprintf(stderr, "Cannot find device \"%s\"\n", idev);
1850 return -1;
1851 }
1852 addattr32(&req.n, sizeof(req), RTA_IIF, idx);
1853 }
1854 if (odev) {
1855 if ((idx = ll_name_to_index(odev)) == 0) {
1856 fprintf(stderr, "Cannot find device \"%s\"\n", odev);
1857 return -1;
1858 }
1859 addattr32(&req.n, sizeof(req), RTA_OIF, idx);
1860 }
1861 }
b0373bfb
ED		 1862 if (mark)
1863 addattr32(&req.n, sizeof(req), RTA_MARK, mark);
aba5acdf
SH		 1864
1865 if (req.r.rtm_family == AF_UNSPEC)
1866 req.r.rtm_family = AF_INET;
1867
bc234301 1868 req.r.rtm_flags |= RTM_F_LOOKUP_TABLE;
aa883d86
RP		 1869 if (fib_match)
1870 req.r.rtm_flags |= RTM_F_FIB_MATCH;
bc234301 1871
86bf43c7 1872 if (rtnl_talk(&rth, &req.n, &answer) < 0)
8b21cef1 1873 return -2;
aba5acdf
SH		 1874
1875 if (connected && !from_ok) {
86bf43c7
HL		 1876 struct rtmsg *r = NLMSG_DATA(answer);
1877 int len = answer->nlmsg_len;
56f5daac 1878 struct rtattr *tb[RTA_MAX+1];
aba5acdf 1879
86bf43c7 1880 if (print_route(NULL, answer, (void *)stdout) < 0) {
aba5acdf 1881 fprintf(stderr, "An error :-)\n");
86bf43c7 1882 free(answer);
8be29558 1883 return -1;
aba5acdf
SH		 1884 }
1885
86bf43c7 1886 if (answer->nlmsg_type != RTM_NEWROUTE) {
aba5acdf 1887 fprintf(stderr, "Not a route?\n");
86bf43c7 1888 free(answer);
aba5acdf
SH		 1889 return -1;
1890 }
1891 len -= NLMSG_LENGTH(sizeof(*r));
1892 if (len < 0) {
1893 fprintf(stderr, "Wrong len %d\n", len);
86bf43c7 1894 free(answer);
aba5acdf
SH		 1895 return -1;
1896 }
1897
aba5acdf
SH		 1898 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
1899
1900 if (tb[RTA_PREFSRC]) {
1901 tb[RTA_PREFSRC]->rta_type = RTA_SRC;
1902 r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
1903 } else if (!tb[RTA_SRC]) {
1904 fprintf(stderr, "Failed to connect the route\n");
86bf43c7 1905 free(answer);
aba5acdf
SH		 1906 return -1;
1907 }
1908 if (!odev && tb[RTA_OIF])
1909 tb[RTA_OIF]->rta_type = 0;
1910 if (tb[RTA_GATEWAY])
1911 tb[RTA_GATEWAY]->rta_type = 0;
93ae2835
EB		 1912 if (tb[RTA_VIA])
1913 tb[RTA_VIA]->rta_type = 0;
aba5acdf
SH		 1914 if (!idev && tb[RTA_IIF])
1915 tb[RTA_IIF]->rta_type = 0;
1916 req.n.nlmsg_flags = NLM_F_REQUEST;
1917 req.n.nlmsg_type = RTM_GETROUTE;
1918
86bf43c7
HL		 1919 free(answer);
1920 if (rtnl_talk(&rth, &req.n, &answer) < 0)
56d8ff0a 1921 return -2;
aba5acdf
SH		 1922 }
1923
86bf43c7 1924 if (print_route(NULL, answer, (void *)stdout) < 0) {
aba5acdf 1925 fprintf(stderr, "An error :-)\n");
86bf43c7 1926 free(answer);
56d8ff0a 1927 return -1;
aba5acdf
SH		 1928 }
1929
86bf43c7 1930 free(answer);
56d8ff0a 1931 return 0;
aba5acdf
SH		 1932}
1933
79f4a393 1934static int rtattr_cmp(const struct rtattr *rta1, const struct rtattr *rta2)
74af8dd9
XL		 1935{
1936 if (!rta1 || !rta2 || rta1->rta_len != rta2->rta_len)
1937 return 1;
1938
1939 return memcmp(RTA_DATA(rta1), RTA_DATA(rta2), RTA_PAYLOAD(rta1));
1940}
1941
0628cddd
ND		 1942static int restore_handler(const struct sockaddr_nl *nl,
1943 struct rtnl_ctrl_data *ctrl,
1944 struct nlmsghdr *n, void *arg)
f4ff11e3 1945{
74af8dd9
XL		 1946 struct rtmsg *r = NLMSG_DATA(n);
1947 struct rtattr *tb[RTA_MAX+1];
1948 int len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*r));
1949 int ret, prio = *(int *)arg;
1950
1951 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
f4ff11e3 1952
74af8dd9
XL		 1953 /* Restore routes in correct order:
1954 * 0. ones for local addresses,
1955 * 1. ones for local networks,
1956 * 2. others (remote networks/hosts).
1957 */
1958 if (!prio && !tb[RTA_GATEWAY] && (!tb[RTA_PREFSRC] ||
1959 !rtattr_cmp(tb[RTA_PREFSRC], tb[RTA_DST])))
1960 goto restore;
c85703bb 1961 else if (prio == 1 && !tb[RTA_GATEWAY] && tb[RTA_PREFSRC] &&
74af8dd9
XL		 1962 rtattr_cmp(tb[RTA_PREFSRC], tb[RTA_DST]))
1963 goto restore;
1964 else if (prio == 2 && tb[RTA_GATEWAY])
1965 goto restore;
1966
1967 return 0;
1968
1969restore:
f4ff11e3
DS		 1970 n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
1971
1972 ll_init_map(&rth);
1973
86bf43c7 1974 ret = rtnl_talk(&rth, n, NULL);
f4ff11e3
DS		 1975 if ((ret < 0) && (errno == EEXIST))
1976 ret = 0;
1977
1978 return ret;
1979}
1980
76c61b34
PE		 1981static int route_dump_check_magic(void)
1982{
1983 int ret;
1984 __u32 magic = 0;
1985
1986 if (isatty(STDIN_FILENO)) {
1987 fprintf(stderr, "Can't restore route dump from a terminal\n");
1988 return -1;
1989 }
1990
1991 ret = fread(&magic, sizeof(magic), 1, stdin);
1992 if (magic != route_dump_magic) {
1993 fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
1994 return -1;
1995 }
1996
1997 return 0;
1998}
1999
d1f28cf1 2000static int iproute_restore(void)
f4ff11e3 2001{
74af8dd9
XL		 2002 int pos, prio;
2003
76c61b34 2004 if (route_dump_check_magic())
2f406f2d 2005 return -1;
76c61b34 2006
74af8dd9 2007 pos = ftell(stdin);
bffb68b6
HL		 2008 if (pos == -1) {
2009 perror("Failed to restore: ftell");
2f406f2d 2010 return -1;
bffb68b6
HL		 2011 }
2012
74af8dd9
XL		 2013 for (prio = 0; prio < 3; prio++) {
2014 int err;
2015
2016 err = rtnl_from_file(stdin, &restore_handler, &prio);
2017 if (err)
2f406f2d 2018 return -2;
74af8dd9 2019
bffb68b6
HL		 2020 if (fseek(stdin, pos, SEEK_SET) == -1) {
2021 perror("Failed to restore: fseek");
2f406f2d 2022 return -1;
bffb68b6 2023 }
74af8dd9
XL		 2024 }
2025
2f406f2d 2026 return 0;
f4ff11e3
DS		 2027}
2028
0628cddd
ND		 2029static int show_handler(const struct sockaddr_nl *nl,
2030 struct rtnl_ctrl_data *ctrl,
2031 struct nlmsghdr *n, void *arg)
93b79863
PE		 2032{
2033 print_route(nl, n, stdout);
2034 return 0;
2035}
2036
2037static int iproute_showdump(void)
2038{
2039 if (route_dump_check_magic())
2f406f2d 2040 return -1;
93b79863 2041
2f406f2d
ÉB		 2042 if (rtnl_from_file(stdin, &show_handler, NULL))
2043 return -2;
2044
2045 return 0;
93b79863
PE		 2046}
2047
093b7646 2048void iproute_reset_filter(int ifindex)
aba5acdf
SH		 2049{
2050 memset(&filter, 0, sizeof(filter));
2051 filter.mdst.bitlen = -1;
2052 filter.msrc.bitlen = -1;
093b7646 2053 filter.oif = ifindex;
2054 if (filter.oif > 0)
2055 filter.oifmask = -1;
aba5acdf
SH		 2056}
2057
2058int do_iproute(int argc, char **argv)
2059{
2060 if (argc < 1)
f4ff11e3 2061 return iproute_list_flush_or_save(0, NULL, IPROUTE_LIST);
ae665a52 2062
aba5acdf
SH		 2063 if (matches(*argv, "add") == 0)
2064 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL,
2065 argc-1, argv+1);
2066 if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0)
2067 return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE,
2068 argc-1, argv+1);
2069 if (matches(*argv, "replace") == 0)
2070 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE,
2071 argc-1, argv+1);
2072 if (matches(*argv, "prepend") == 0)
2073 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE,
2074 argc-1, argv+1);
2075 if (matches(*argv, "append") == 0)
2076 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND,
2077 argc-1, argv+1);
2078 if (matches(*argv, "test") == 0)
2079 return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL,
2080 argc-1, argv+1);
2081 if (matches(*argv, "delete") == 0)
2082 return iproute_modify(RTM_DELROUTE, 0,
2083 argc-1, argv+1);
2084 if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
2085 || matches(*argv, "lst") == 0)
f4ff11e3 2086 return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_LIST);
aba5acdf
SH		 2087 if (matches(*argv, "get") == 0)
2088 return iproute_get(argc-1, argv+1);
2089 if (matches(*argv, "flush") == 0)
f4ff11e3
DS		 2090 return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_FLUSH);
2091 if (matches(*argv, "save") == 0)
2092 return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_SAVE);
2093 if (matches(*argv, "restore") == 0)
2094 return iproute_restore();
93b79863
PE		 2095 if (matches(*argv, "showdump") == 0)
2096 return iproute_showdump();
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SH		 2097 if (matches(*argv, "help") == 0)
2098 usage();
2099 fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv);
2100 exit(-1);
2101}
Upstream mirror of iproute2