2 * iproute.c "ip route".
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.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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>
25 #include <linux/icmpv6.h>
30 #include "ip_common.h"
33 #define RTAX_RTTVAR RTAX_HOPS
41 static const char *mx_names
[RTAX_MAX
+1] = {
43 [RTAX_WINDOW
] = "window",
45 [RTAX_RTTVAR
] = "rttvar",
46 [RTAX_SSTHRESH
] = "ssthresh",
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"
59 static void usage(void) __attribute__((noreturn
));
61 static void usage(void)
64 "Usage: ip route { list | flush } SELECTOR\n"
65 " ip route save SELECTOR\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"
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"
92 " [ pref PREF ] [ expires TIME ] [ fastopen_no_cookie BOOL ]\n"
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"
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");
120 int protocol
, protocolmask
;
121 int scope
, scopemask
;
127 int realm
, realmmask
;
128 __u32 metric
, metricmask
;
129 inet_prefix rprefsrc
;
137 static int flush_update(void)
139 if (rtnl_send_check(&rth
, filter
.flushb
, filter
.flushp
) < 0) {
140 perror("Failed to send flush request");
147 static int filter_nlmsg(struct nlmsghdr
*n
, struct rtattr
**tb
, int host_len
)
149 struct rtmsg
*r
= NLMSG_DATA(n
);
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
};
155 static int ip6_multiple_tables
;
157 table
= rtm_get_table(r
, tb
);
159 if (preferred_family
!= AF_UNSPEC
&& r
->rtm_family
!= preferred_family
)
162 if (r
->rtm_family
== AF_INET6
&& table
!= RT_TABLE_MAIN
)
163 ip6_multiple_tables
= 1;
165 if (filter
.cloned
== !(r
->rtm_flags
& RTM_F_CLONED
))
168 if (r
->rtm_family
== AF_INET6
&& !ip6_multiple_tables
) {
170 if (filter
.tb
== RT_TABLE_LOCAL
) {
171 if (r
->rtm_type
!= RTN_LOCAL
)
173 } else if (filter
.tb
== RT_TABLE_MAIN
) {
174 if (r
->rtm_type
== RTN_LOCAL
)
181 if (filter
.tb
> 0 && filter
.tb
!= table
)
184 if ((filter
.protocol
^r
->rtm_protocol
)&filter
.protocolmask
)
186 if ((filter
.scope
^r
->rtm_scope
)&filter
.scopemask
)
189 if (filter
.typemask
&& !(filter
.typemask
& (1 << r
->rtm_type
)))
191 if ((filter
.tos
^r
->rtm_tos
)&filter
.tosmask
)
193 if (filter
.rdst
.family
) {
194 if (r
->rtm_family
!= filter
.rdst
.family
||
195 filter
.rdst
.bitlen
> r
->rtm_dst_len
)
197 } else if (filter
.rdst
.flags
& PREFIXLEN_SPECIFIED
) {
198 if (filter
.rdst
.bitlen
> r
->rtm_dst_len
)
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
))
206 } else if (filter
.mdst
.flags
& PREFIXLEN_SPECIFIED
) {
207 if (filter
.mdst
.bitlen
>= 0 &&
208 filter
.mdst
.bitlen
< r
->rtm_dst_len
)
211 if (filter
.rsrc
.family
) {
212 if (r
->rtm_family
!= filter
.rsrc
.family
||
213 filter
.rsrc
.bitlen
> r
->rtm_src_len
)
215 } else if (filter
.rsrc
.flags
& PREFIXLEN_SPECIFIED
) {
216 if (filter
.rsrc
.bitlen
> r
->rtm_src_len
)
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
))
224 } else if (filter
.msrc
.flags
& PREFIXLEN_SPECIFIED
) {
225 if (filter
.msrc
.bitlen
>= 0 &&
226 filter
.msrc
.bitlen
< r
->rtm_src_len
)
229 if (filter
.rvia
.family
) {
230 int family
= r
->rtm_family
;
233 struct rtvia
*via
= RTA_DATA(tb
[RTA_VIA
]);
235 family
= via
->rtvia_family
;
237 if (family
!= filter
.rvia
.family
)
240 if (filter
.rprefsrc
.family
&& r
->rtm_family
!= filter
.rprefsrc
.family
)
244 memcpy(&dst
.data
, RTA_DATA(tb
[RTA_DST
]), (r
->rtm_dst_len
+7)/8);
245 if (filter
.rsrc
.family
|| filter
.msrc
.family
||
246 filter
.rsrc
.flags
& PREFIXLEN_SPECIFIED
||
247 filter
.msrc
.flags
& PREFIXLEN_SPECIFIED
) {
249 memcpy(&src
.data
, RTA_DATA(tb
[RTA_SRC
]), (r
->rtm_src_len
+7)/8);
251 if (filter
.rvia
.bitlen
> 0) {
253 memcpy(&via
.data
, RTA_DATA(tb
[RTA_GATEWAY
]), host_len
/8);
255 size_t len
= RTA_PAYLOAD(tb
[RTA_VIA
]) - 2;
256 struct rtvia
*rtvia
= RTA_DATA(tb
[RTA_VIA
]);
258 via
.family
= rtvia
->rtvia_family
;
259 memcpy(&via
.data
, rtvia
->rtvia_addr
, len
);
262 if (filter
.rprefsrc
.bitlen
> 0) {
264 memcpy(&prefsrc
.data
, RTA_DATA(tb
[RTA_PREFSRC
]), host_len
/8);
267 if ((filter
.rdst
.family
|| filter
.rdst
.flags
& PREFIXLEN_SPECIFIED
) &&
268 inet_addr_match(&dst
, &filter
.rdst
, filter
.rdst
.bitlen
))
270 if ((filter
.mdst
.family
|| filter
.mdst
.flags
& PREFIXLEN_SPECIFIED
) &&
271 inet_addr_match(&dst
, &filter
.mdst
, r
->rtm_dst_len
))
274 if ((filter
.rsrc
.family
|| filter
.rsrc
.flags
& PREFIXLEN_SPECIFIED
) &&
275 inet_addr_match(&src
, &filter
.rsrc
, filter
.rsrc
.bitlen
))
277 if ((filter
.msrc
.family
|| filter
.msrc
.flags
& PREFIXLEN_SPECIFIED
) &&
278 filter
.msrc
.bitlen
>= 0 &&
279 inet_addr_match(&src
, &filter
.msrc
, r
->rtm_src_len
))
282 if (filter
.rvia
.family
&& inet_addr_match(&via
, &filter
.rvia
, filter
.rvia
.bitlen
))
284 if (filter
.rprefsrc
.family
&& inet_addr_match(&prefsrc
, &filter
.rprefsrc
, filter
.rprefsrc
.bitlen
))
286 if (filter
.realmmask
) {
290 realms
= rta_getattr_u32(tb
[RTA_FLOW
]);
291 if ((realms
^filter
.realm
)&filter
.realmmask
)
294 if (filter
.iifmask
) {
298 iif
= rta_getattr_u32(tb
[RTA_IIF
]);
299 if ((iif
^filter
.iif
)&filter
.iifmask
)
302 if (filter
.oifmask
) {
306 oif
= rta_getattr_u32(tb
[RTA_OIF
]);
307 if ((oif
^filter
.oif
)&filter
.oifmask
)
310 if (filter
.markmask
) {
314 mark
= rta_getattr_u32(tb
[RTA_MARK
]);
315 if ((mark
^ filter
.mark
) & filter
.markmask
)
318 if (filter
.metricmask
) {
321 if (tb
[RTA_PRIORITY
])
322 metric
= rta_getattr_u32(tb
[RTA_PRIORITY
]);
323 if ((metric
^ filter
.metric
) & filter
.metricmask
)
327 r
->rtm_family
== AF_INET6
&&
328 r
->rtm_dst_len
== 0 &&
329 r
->rtm_type
== RTN_UNREACHABLE
&&
331 rta_getattr_u32(tb
[RTA_PRIORITY
]) == -1)
337 static void print_rtax_features(FILE *fp
, unsigned int features
)
339 unsigned int of
= features
;
341 if (features
& RTAX_FEATURE_ECN
) {
342 print_null(PRINT_ANY
, "ecn", "ecn ", NULL
);
343 features
&= ~RTAX_FEATURE_ECN
;
347 print_0xhex(PRINT_ANY
,
348 "features", "0x%x ", of
);
351 static void print_rt_flags(FILE *fp
, unsigned int flags
)
353 open_json_array(PRINT_JSON
,
354 is_json_context() ? "flags" : "");
356 if (flags
& RTNH_F_DEAD
)
357 print_string(PRINT_ANY
, NULL
, "%s ", "dead");
358 if (flags
& RTNH_F_ONLINK
)
359 print_string(PRINT_ANY
, NULL
, "%s ", "onlink");
360 if (flags
& RTNH_F_PERVASIVE
)
361 print_string(PRINT_ANY
, NULL
, "%s ", "pervasive");
362 if (flags
& RTNH_F_OFFLOAD
)
363 print_string(PRINT_ANY
, NULL
, "%s ", "offload");
364 if (flags
& RTM_F_NOTIFY
)
365 print_string(PRINT_ANY
, NULL
, "%s ", "notify");
366 if (flags
& RTNH_F_LINKDOWN
)
367 print_string(PRINT_ANY
, NULL
, "%s ", "linkdown");
368 if (flags
& RTNH_F_UNRESOLVED
)
369 print_string(PRINT_ANY
, NULL
, "%s ", "unresolved");
371 close_json_array(PRINT_JSON
, NULL
);
374 static void print_rt_pref(FILE *fp
, unsigned int pref
)
378 case ICMPV6_ROUTER_PREF_LOW
:
379 print_string(PRINT_ANY
,
380 "pref", "pref %s", "low");
382 case ICMPV6_ROUTER_PREF_MEDIUM
:
383 print_string(PRINT_ANY
,
384 "pref", "pref %s", "medium");
386 case ICMPV6_ROUTER_PREF_HIGH
:
387 print_string(PRINT_ANY
,
388 "pref", "pref %s", "high");
391 print_uint(PRINT_ANY
,
396 static void print_rta_if(FILE *fp
, const struct rtattr
*rta
,
399 const char *ifname
= ll_index_to_name(rta_getattr_u32(rta
));
401 if (is_json_context())
402 print_string(PRINT_JSON
, prefix
, NULL
, ifname
);
404 fprintf(fp
, "%s ", prefix
);
405 color_fprintf(fp
, COLOR_IFNAME
, "%s ", ifname
);
409 static void print_cache_flags(FILE *fp
, __u32 flags
)
411 json_writer_t
*jw
= get_json_writer();
415 jsonw_name(jw
, "cache");
416 jsonw_start_array(jw
);
418 fprintf(fp
, "%s cache ", _SL_
);
424 #define PRTFL(fl, flname) \
425 if (flags & RTCF_##fl) { \
426 flags &= ~RTCF_##fl; \
428 jsonw_string(jw, flname); \
430 fprintf(fp, "%s%s", flname, flags ? "," : "> "); \
433 PRTFL(LOCAL
, "local");
434 PRTFL(REJECT
, "reject");
435 PRTFL(MULTICAST
, "mc");
436 PRTFL(BROADCAST
, "brd");
437 PRTFL(DNAT
, "dst-nat");
438 PRTFL(SNAT
, "src-nat");
440 PRTFL(DIRECTDST
, "dst-direct");
441 PRTFL(DIRECTSRC
, "src-direct");
442 PRTFL(REDIRECTED
, "redirected");
443 PRTFL(DOREDIRECT
, "redirect");
444 PRTFL(FAST
, "fastroute");
445 PRTFL(NOTIFY
, "notify");
446 PRTFL(TPROXY
, "proxy");
450 print_hex(PRINT_ANY
, "flags", "%x>", flags
);
458 static void print_rta_cacheinfo(FILE *fp
, const struct rta_cacheinfo
*ci
)
465 if (ci
->rta_expires
!= 0)
466 print_int(PRINT_ANY
, "expires",
467 "expires %dsec ", ci
->rta_expires
/hz
);
468 if (ci
->rta_error
!= 0)
469 print_uint(PRINT_ANY
, "error",
470 "error %u ", ci
->rta_error
);
474 print_uint(PRINT_ANY
, "users",
475 "users %u ", ci
->rta_clntref
);
476 if (ci
->rta_used
!= 0)
477 print_uint(PRINT_ANY
, "used",
478 "used %u ", ci
->rta_used
);
479 if (ci
->rta_lastuse
!= 0)
480 print_uint(PRINT_ANY
, "age",
481 "age %usec ", ci
->rta_lastuse
/hz
);
484 print_0xhex(PRINT_ANY
, "ipid",
485 "ipid 0x%04x ", ci
->rta_id
);
486 if (ci
->rta_ts
|| ci
->rta_tsage
) {
487 print_0xhex(PRINT_ANY
, "ts",
488 "ts 0x%x", ci
->rta_ts
);
489 print_uint(PRINT_ANY
, "tsage",
490 "tsage %usec ", ci
->rta_tsage
);
494 static void print_rta_flow(FILE *fp
, const struct rtattr
*rta
)
496 __u32 to
= rta_getattr_u32(rta
);
497 __u32 from
= to
>> 16;
501 if (is_json_context()) {
502 open_json_object("flow");
505 print_string(PRINT_JSON
, "from", NULL
,
506 rtnl_rtrealm_n2a(from
, b1
, sizeof(b1
)));
507 print_string(PRINT_JSON
, "to", NULL
,
508 rtnl_rtrealm_n2a(to
, b1
, sizeof(b1
)));
511 fprintf(fp
, "realm%s ", from
? "s" : "");
514 print_string(PRINT_FP
, NULL
, "%s/",
515 rtnl_rtrealm_n2a(from
, b1
, sizeof(b1
)));
516 print_string(PRINT_FP
, NULL
, "%s ",
517 rtnl_rtrealm_n2a(to
, b1
, sizeof(b1
)));
521 static void print_rta_newdst(FILE *fp
, const struct rtmsg
*r
,
522 const struct rtattr
*rta
)
524 const char *newdst
= format_host_rta(r
->rtm_family
, rta
);
526 if (is_json_context())
527 print_string(PRINT_JSON
, "to", NULL
, newdst
);
529 fprintf(fp
, "as to ");
530 print_color_string(PRINT_FP
,
531 ifa_family_color(r
->rtm_family
),
532 NULL
, "%s ", newdst
);
536 static void print_rta_gateway(FILE *fp
, const struct rtmsg
*r
,
537 const struct rtattr
*rta
)
539 const char *gateway
= format_host_rta(r
->rtm_family
, rta
);
541 if (is_json_context())
542 print_string(PRINT_JSON
, "gateway", NULL
, gateway
);
545 print_color_string(PRINT_FP
,
546 ifa_family_color(r
->rtm_family
),
547 NULL
, "%s ", gateway
);
551 static void print_rta_via(FILE *fp
, const struct rtattr
*rta
)
553 size_t len
= RTA_PAYLOAD(rta
) - 2;
554 const struct rtvia
*via
= RTA_DATA(rta
);
556 if (is_json_context()) {
557 open_json_object("via");
558 print_string(PRINT_JSON
, "family", NULL
,
559 family_name(via
->rtvia_family
));
560 print_string(PRINT_JSON
, "host", NULL
,
561 format_host(via
->rtvia_family
, len
,
565 print_string(PRINT_FP
, NULL
, "via %s ",
566 family_name(via
->rtvia_family
));
567 print_color_string(PRINT_FP
,
568 ifa_family_color(via
->rtvia_family
),
570 format_host(via
->rtvia_family
,
571 len
, via
->rtvia_addr
));
575 static void print_rta_metrics(FILE *fp
, const struct rtattr
*rta
)
577 struct rtattr
*mxrta
[RTAX_MAX
+1];
578 unsigned int mxlock
= 0;
581 open_json_array(PRINT_JSON
, "metrics");
583 parse_rtattr(mxrta
, RTAX_MAX
, RTA_DATA(rta
), RTA_PAYLOAD(rta
));
585 if (mxrta
[RTAX_LOCK
])
586 mxlock
= rta_getattr_u32(mxrta
[RTAX_LOCK
]);
588 for (i
= 2; i
<= RTAX_MAX
; i
++) {
591 if (mxrta
[i
] == NULL
&& !(mxlock
& (1 << i
)))
594 if (mxrta
[i
] != NULL
&& i
!= RTAX_CC_ALGO
)
595 val
= rta_getattr_u32(mxrta
[i
]);
597 if (i
== RTAX_HOPLIMIT
&& (int)val
== -1)
600 if (!is_json_context()) {
601 if (i
< sizeof(mx_names
)/sizeof(char *) && mx_names
[i
])
602 fprintf(fp
, "%s ", mx_names
[i
]);
604 fprintf(fp
, "metric %d ", i
);
607 fprintf(fp
, "lock ");
612 print_rtax_features(fp
, val
);
615 fprintf(fp
, "%u ", val
);
623 else if (i
== RTAX_RTTVAR
)
626 if (is_json_context())
627 print_uint(PRINT_JSON
, mx_names
[i
],
631 fprintf(fp
, "%gs ", val
/1e3
);
633 fprintf(fp
, "%ums ", val
);
637 print_string(PRINT_ANY
, "congestion",
638 "%s ", rta_getattr_str(mxrta
[i
]));
643 close_json_array(PRINT_JSON
, NULL
);
646 static void print_rta_multipath(FILE *fp
, const struct rtmsg
*r
,
649 const struct rtnexthop
*nh
= RTA_DATA(rta
);
650 int len
= RTA_PAYLOAD(rta
);
653 while (len
>= sizeof(*nh
)) {
654 struct rtattr
*tb
[RTA_MAX
+ 1];
656 if (nh
->rtnh_len
> len
)
659 if (!is_json_context()) {
660 if ((r
->rtm_flags
& RTM_F_CLONED
) &&
661 r
->rtm_type
== RTN_MULTICAST
) {
663 fprintf(fp
, "Oifs: ");
669 fprintf(fp
, "%s\tnexthop ", _SL_
);
672 if (nh
->rtnh_len
> sizeof(*nh
)) {
673 parse_rtattr(tb
, RTA_MAX
, RTNH_DATA(nh
),
674 nh
->rtnh_len
- sizeof(*nh
));
681 print_rta_newdst(fp
, r
, tb
[RTA_NEWDST
]);
683 print_rta_gateway(fp
, r
, tb
[RTA_GATEWAY
]);
685 print_rta_via(fp
, tb
[RTA_VIA
]);
687 print_rta_flow(fp
, tb
[RTA_FLOW
]);
690 if ((r
->rtm_flags
& RTM_F_CLONED
) &&
691 r
->rtm_type
== RTN_MULTICAST
) {
692 fprintf(fp
, "%s", ll_index_to_name(nh
->rtnh_ifindex
));
693 if (nh
->rtnh_hops
!= 1)
694 fprintf(fp
, "(ttl>%d)", nh
->rtnh_hops
);
697 fprintf(fp
, "dev %s ", ll_index_to_name(nh
->rtnh_ifindex
));
698 if (r
->rtm_family
!= AF_MPLS
)
699 fprintf(fp
, "weight %d ",
703 print_rt_flags(fp
, nh
->rtnh_flags
);
705 len
-= NLMSG_ALIGN(nh
->rtnh_len
);
710 int print_route(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
712 FILE *fp
= (FILE *)arg
;
713 struct rtmsg
*r
= NLMSG_DATA(n
);
714 int len
= n
->nlmsg_len
;
715 struct rtattr
*tb
[RTA_MAX
+1];
716 int family
, color
, host_len
;
722 if (n
->nlmsg_type
!= RTM_NEWROUTE
&& n
->nlmsg_type
!= RTM_DELROUTE
) {
723 fprintf(stderr
, "Not a route: %08x %08x %08x\n",
724 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
727 if (filter
.flushb
&& n
->nlmsg_type
!= RTM_NEWROUTE
)
729 len
-= NLMSG_LENGTH(sizeof(*r
));
731 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
735 host_len
= af_bit_len(r
->rtm_family
);
737 parse_rtattr(tb
, RTA_MAX
, RTM_RTA(r
), len
);
738 table
= rtm_get_table(r
, tb
);
740 if (!filter_nlmsg(n
, tb
, host_len
))
746 if (NLMSG_ALIGN(filter
.flushp
) + n
->nlmsg_len
> filter
.flushe
) {
747 ret
= flush_update();
751 fn
= (struct nlmsghdr
*)(filter
.flushb
+ NLMSG_ALIGN(filter
.flushp
));
752 memcpy(fn
, n
, n
->nlmsg_len
);
753 fn
->nlmsg_type
= RTM_DELROUTE
;
754 fn
->nlmsg_flags
= NLM_F_REQUEST
;
755 fn
->nlmsg_seq
= ++rth
.seq
;
756 filter
.flushp
= (((char *)fn
) + n
->nlmsg_len
) - filter
.flushb
;
762 open_json_object(NULL
);
763 if (n
->nlmsg_type
== RTM_DELROUTE
)
764 print_bool(PRINT_ANY
, "deleted", "Deleted ", true);
766 if ((r
->rtm_type
!= RTN_UNICAST
|| show_details
> 0) &&
767 (!filter
.typemask
|| (filter
.typemask
& (1 << r
->rtm_type
))))
768 print_string(PRINT_ANY
, NULL
, "%s ",
769 rtnl_rtntype_n2a(r
->rtm_type
, b1
, sizeof(b1
)));
773 family
= get_real_family(r
->rtm_type
, r
->rtm_family
);
774 color
= ifa_family_color(family
);
776 if (r
->rtm_dst_len
!= host_len
) {
777 snprintf(b1
, sizeof(b1
),
778 "%s/%u", rt_addr_n2a_rta(family
, tb
[RTA_DST
]),
781 format_host_rta_r(family
, tb
[RTA_DST
],
785 } else if (r
->rtm_dst_len
) {
786 snprintf(b1
, sizeof(b1
), "0/%d ", r
->rtm_dst_len
);
788 strncpy(b1
, "default", sizeof(b1
));
790 print_color_string(PRINT_ANY
, color
,
794 family
= get_real_family(r
->rtm_type
, r
->rtm_family
);
795 color
= ifa_family_color(family
);
797 if (r
->rtm_src_len
!= host_len
) {
798 snprintf(b1
, sizeof(b1
),
800 rt_addr_n2a_rta(family
, tb
[RTA_SRC
]),
803 format_host_rta_r(family
, tb
[RTA_SRC
],
806 print_color_string(PRINT_ANY
, color
,
807 "from", "from %s ", b1
);
808 } else if (r
->rtm_src_len
) {
809 snprintf(b1
, sizeof(b1
), "0/%u", r
->rtm_src_len
);
811 print_string(PRINT_ANY
, "src", "from %s ", b1
);
815 print_rta_newdst(fp
, r
, tb
[RTA_NEWDST
]);
818 lwt_print_encap(fp
, tb
[RTA_ENCAP_TYPE
], tb
[RTA_ENCAP
]);
820 if (r
->rtm_tos
&& filter
.tosmask
!= -1) {
821 print_string(PRINT_ANY
, "tos", "tos %s ",
822 rtnl_dsfield_n2a(r
->rtm_tos
, b1
, sizeof(b1
)));
825 if (tb
[RTA_GATEWAY
] && filter
.rvia
.bitlen
!= host_len
)
826 print_rta_gateway(fp
, r
, tb
[RTA_GATEWAY
]);
829 print_rta_via(fp
, tb
[RTA_VIA
]);
831 if (tb
[RTA_OIF
] && filter
.oifmask
!= -1)
832 print_rta_if(fp
, tb
[RTA_OIF
], "dev");
834 if (table
&& (table
!= RT_TABLE_MAIN
|| show_details
> 0) && !filter
.tb
)
835 print_string(PRINT_ANY
,
836 "table", "table %s ",
837 rtnl_rttable_n2a(table
, b1
, sizeof(b1
)));
839 if (!(r
->rtm_flags
& RTM_F_CLONED
)) {
840 if ((r
->rtm_protocol
!= RTPROT_BOOT
|| show_details
> 0) &&
841 filter
.protocolmask
!= -1)
842 print_string(PRINT_ANY
,
843 "protocol", "proto %s ",
844 rtnl_rtprot_n2a(r
->rtm_protocol
,
847 if ((r
->rtm_scope
!= RT_SCOPE_UNIVERSE
|| show_details
> 0) &&
848 filter
.scopemask
!= -1)
849 print_string(PRINT_ANY
,
850 "scope", "scope %s ",
851 rtnl_rtscope_n2a(r
->rtm_scope
,
855 if (tb
[RTA_PREFSRC
] && filter
.rprefsrc
.bitlen
!= host_len
) {
857 = rt_addr_n2a_rta(r
->rtm_family
, tb
[RTA_PREFSRC
]);
859 /* Do not use format_host(). It is our local addr
860 and symbolic name will not be useful.
862 if (is_json_context())
863 print_string(PRINT_JSON
, "prefsrc", NULL
, psrc
);
866 print_color_string(PRINT_FP
,
867 ifa_family_color(r
->rtm_family
),
873 if (tb
[RTA_PRIORITY
] && filter
.metricmask
!= -1)
874 print_uint(PRINT_ANY
, "metric", "metric %u ",
875 rta_getattr_u32(tb
[RTA_PRIORITY
]));
877 print_rt_flags(fp
, r
->rtm_flags
);
880 unsigned int mark
= rta_getattr_u32(tb
[RTA_MARK
]);
883 if (is_json_context())
884 print_uint(PRINT_JSON
, "mark", NULL
, mark
);
886 print_0xhex(PRINT_FP
, NULL
,
889 print_uint(PRINT_FP
, NULL
,
894 if (tb
[RTA_FLOW
] && filter
.realmmask
!= ~0U)
895 print_rta_flow(fp
, tb
[RTA_FLOW
]);
898 print_uint(PRINT_ANY
, "uid", "uid %u ",
899 rta_getattr_u32(tb
[RTA_UID
]));
901 if (r
->rtm_family
== AF_INET
) {
902 if (r
->rtm_flags
& RTM_F_CLONED
)
903 print_cache_flags(fp
, r
->rtm_flags
);
905 if (tb
[RTA_CACHEINFO
])
906 print_rta_cacheinfo(fp
, RTA_DATA(tb
[RTA_CACHEINFO
]));
907 } else if (r
->rtm_family
== AF_INET6
) {
908 if (tb
[RTA_CACHEINFO
])
909 print_rta_cacheinfo(fp
, RTA_DATA(tb
[RTA_CACHEINFO
]));
913 print_rta_metrics(fp
, tb
[RTA_METRICS
]);
915 if (tb
[RTA_IIF
] && filter
.iifmask
!= -1)
916 print_rta_if(fp
, tb
[RTA_IIF
], "iif");
918 if (tb
[RTA_MULTIPATH
])
919 print_rta_multipath(fp
, r
, tb
[RTA_MULTIPATH
]);
922 print_rt_pref(fp
, rta_getattr_u8(tb
[RTA_PREF
]));
924 if (tb
[RTA_TTL_PROPAGATE
]) {
925 bool propogate
= rta_getattr_u8(tb
[RTA_TTL_PROPAGATE
]);
927 if (is_json_context())
928 print_bool(PRINT_JSON
, "ttl-propogate", NULL
,
931 print_string(PRINT_FP
, NULL
,
933 propogate
? "enabled" : "disabled");
936 print_string(PRINT_FP
, NULL
, "\n", NULL
);
942 static int parse_one_nh(struct nlmsghdr
*n
, struct rtmsg
*r
,
943 struct rtattr
*rta
, struct rtnexthop
*rtnh
,
944 int *argcp
, char ***argvp
)
947 char **argv
= *argvp
;
949 while (++argv
, --argc
> 0) {
950 if (strcmp(*argv
, "via") == 0) {
955 family
= read_family(*argv
);
956 if (family
== AF_UNSPEC
)
957 family
= r
->rtm_family
;
960 get_addr(&addr
, *argv
, family
);
961 if (r
->rtm_family
== AF_UNSPEC
)
962 r
->rtm_family
= addr
.family
;
963 if (addr
.family
== r
->rtm_family
) {
964 rta_addattr_l(rta
, 4096, RTA_GATEWAY
, &addr
.data
, addr
.bytelen
);
965 rtnh
->rtnh_len
+= sizeof(struct rtattr
) + addr
.bytelen
;
967 rta_addattr_l(rta
, 4096, RTA_VIA
, &addr
.family
, addr
.bytelen
+2);
968 rtnh
->rtnh_len
+= RTA_SPACE(addr
.bytelen
+2);
970 } else if (strcmp(*argv
, "dev") == 0) {
972 rtnh
->rtnh_ifindex
= ll_name_to_index(*argv
);
973 if (!rtnh
->rtnh_ifindex
)
975 } else if (strcmp(*argv
, "weight") == 0) {
979 if (get_unsigned(&w
, *argv
, 0) || w
== 0 || w
> 256)
980 invarg("\"weight\" is invalid\n", *argv
);
981 rtnh
->rtnh_hops
= w
- 1;
982 } else if (strcmp(*argv
, "onlink") == 0) {
983 rtnh
->rtnh_flags
|= RTNH_F_ONLINK
;
984 } else if (matches(*argv
, "realms") == 0) {
988 if (get_rt_realms_or_raw(&realm
, *argv
))
989 invarg("\"realm\" value is invalid\n", *argv
);
990 rta_addattr32(rta
, 4096, RTA_FLOW
, realm
);
991 rtnh
->rtnh_len
+= sizeof(struct rtattr
) + 4;
992 } else if (strcmp(*argv
, "encap") == 0) {
993 int len
= rta
->rta_len
;
995 lwt_parse_encap(rta
, 4096, &argc
, &argv
);
996 rtnh
->rtnh_len
+= rta
->rta_len
- len
;
997 } else if (strcmp(*argv
, "as") == 0) {
1001 if (strcmp(*argv
, "to") == 0)
1003 get_addr(&addr
, *argv
, r
->rtm_family
);
1004 rta_addattr_l(rta
, 4096, RTA_NEWDST
, &addr
.data
,
1006 rtnh
->rtnh_len
+= sizeof(struct rtattr
) + addr
.bytelen
;
1015 static int parse_nexthops(struct nlmsghdr
*n
, struct rtmsg
*r
,
1016 int argc
, char **argv
)
1019 struct rtattr
*rta
= (void *)buf
;
1020 struct rtnexthop
*rtnh
;
1022 rta
->rta_type
= RTA_MULTIPATH
;
1023 rta
->rta_len
= RTA_LENGTH(0);
1024 rtnh
= RTA_DATA(rta
);
1027 if (strcmp(*argv
, "nexthop") != 0) {
1028 fprintf(stderr
, "Error: \"nexthop\" or end of line is expected instead of \"%s\"\n", *argv
);
1032 fprintf(stderr
, "Error: unexpected end of line after \"nexthop\"\n");
1035 memset(rtnh
, 0, sizeof(*rtnh
));
1036 rtnh
->rtnh_len
= sizeof(*rtnh
);
1037 rta
->rta_len
+= rtnh
->rtnh_len
;
1038 if (parse_one_nh(n
, r
, rta
, rtnh
, &argc
, &argv
)) {
1039 fprintf(stderr
, "Error: cannot parse nexthop\n");
1042 rtnh
= RTNH_NEXT(rtnh
);
1045 if (rta
->rta_len
> RTA_LENGTH(0))
1046 addattr_l(n
, 1024, RTA_MULTIPATH
, RTA_DATA(rta
), RTA_PAYLOAD(rta
));
1050 static int iproute_modify(int cmd
, unsigned int flags
, int argc
, char **argv
)
1057 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct rtmsg
)),
1058 .n
.nlmsg_flags
= NLM_F_REQUEST
| flags
,
1059 .n
.nlmsg_type
= cmd
,
1060 .r
.rtm_family
= preferred_family
,
1061 .r
.rtm_table
= RT_TABLE_MAIN
,
1062 .r
.rtm_scope
= RT_SCOPE_NOWHERE
,
1065 struct rtattr
*mxrta
= (void *)mxbuf
;
1066 unsigned int mxlock
= 0;
1076 if (cmd
!= RTM_DELROUTE
) {
1077 req
.r
.rtm_protocol
= RTPROT_BOOT
;
1078 req
.r
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1079 req
.r
.rtm_type
= RTN_UNICAST
;
1082 mxrta
->rta_type
= RTA_METRICS
;
1083 mxrta
->rta_len
= RTA_LENGTH(0);
1086 if (strcmp(*argv
, "src") == 0) {
1090 get_addr(&addr
, *argv
, req
.r
.rtm_family
);
1091 if (req
.r
.rtm_family
== AF_UNSPEC
)
1092 req
.r
.rtm_family
= addr
.family
;
1093 addattr_l(&req
.n
, sizeof(req
),
1094 RTA_PREFSRC
, &addr
.data
, addr
.bytelen
);
1095 } else if (strcmp(*argv
, "as") == 0) {
1099 if (strcmp(*argv
, "to") == 0) {
1102 get_addr(&addr
, *argv
, req
.r
.rtm_family
);
1103 if (req
.r
.rtm_family
== AF_UNSPEC
)
1104 req
.r
.rtm_family
= addr
.family
;
1105 addattr_l(&req
.n
, sizeof(req
),
1106 RTA_NEWDST
, &addr
.data
, addr
.bytelen
);
1107 } else if (strcmp(*argv
, "via") == 0) {
1112 invarg("use nexthop syntax to specify multiple via\n",
1117 family
= read_family(*argv
);
1118 if (family
== AF_UNSPEC
)
1119 family
= req
.r
.rtm_family
;
1122 get_addr(&addr
, *argv
, family
);
1123 if (req
.r
.rtm_family
== AF_UNSPEC
)
1124 req
.r
.rtm_family
= addr
.family
;
1125 if (addr
.family
== req
.r
.rtm_family
)
1126 addattr_l(&req
.n
, sizeof(req
), RTA_GATEWAY
,
1127 &addr
.data
, addr
.bytelen
);
1129 addattr_l(&req
.n
, sizeof(req
), RTA_VIA
,
1130 &addr
.family
, addr
.bytelen
+2);
1131 } else if (strcmp(*argv
, "from") == 0) {
1135 get_prefix(&addr
, *argv
, req
.r
.rtm_family
);
1136 if (req
.r
.rtm_family
== AF_UNSPEC
)
1137 req
.r
.rtm_family
= addr
.family
;
1139 addattr_l(&req
.n
, sizeof(req
), RTA_SRC
, &addr
.data
, addr
.bytelen
);
1140 req
.r
.rtm_src_len
= addr
.bitlen
;
1141 } else if (strcmp(*argv
, "tos") == 0 ||
1142 matches(*argv
, "dsfield") == 0) {
1146 if (rtnl_dsfield_a2n(&tos
, *argv
))
1147 invarg("\"tos\" value is invalid\n", *argv
);
1148 req
.r
.rtm_tos
= tos
;
1149 } else if (strcmp(*argv
, "expires") == 0) {
1153 if (get_u32(&expires
, *argv
, 0))
1154 invarg("\"expires\" value is invalid\n", *argv
);
1155 addattr32(&req
.n
, sizeof(req
), RTA_EXPIRES
, expires
);
1156 } else if (matches(*argv
, "metric") == 0 ||
1157 matches(*argv
, "priority") == 0 ||
1158 strcmp(*argv
, "preference") == 0) {
1162 if (get_u32(&metric
, *argv
, 0))
1163 invarg("\"metric\" value is invalid\n", *argv
);
1164 addattr32(&req
.n
, sizeof(req
), RTA_PRIORITY
, metric
);
1165 } else if (strcmp(*argv
, "scope") == 0) {
1169 if (rtnl_rtscope_a2n(&scope
, *argv
))
1170 invarg("invalid \"scope\" value\n", *argv
);
1171 req
.r
.rtm_scope
= scope
;
1173 } else if (strcmp(*argv
, "mtu") == 0) {
1177 if (strcmp(*argv
, "lock") == 0) {
1178 mxlock
|= (1<<RTAX_MTU
);
1181 if (get_unsigned(&mtu
, *argv
, 0))
1182 invarg("\"mtu\" value is invalid\n", *argv
);
1183 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_MTU
, mtu
);
1184 } else if (strcmp(*argv
, "hoplimit") == 0) {
1185 unsigned int hoplimit
;
1188 if (strcmp(*argv
, "lock") == 0) {
1189 mxlock
|= (1<<RTAX_HOPLIMIT
);
1192 if (get_unsigned(&hoplimit
, *argv
, 0) || hoplimit
> 255)
1193 invarg("\"hoplimit\" value is invalid\n", *argv
);
1194 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_HOPLIMIT
, hoplimit
);
1195 } else if (strcmp(*argv
, "advmss") == 0) {
1199 if (strcmp(*argv
, "lock") == 0) {
1200 mxlock
|= (1<<RTAX_ADVMSS
);
1203 if (get_unsigned(&mss
, *argv
, 0))
1204 invarg("\"mss\" value is invalid\n", *argv
);
1205 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_ADVMSS
, mss
);
1206 } else if (matches(*argv
, "reordering") == 0) {
1210 if (strcmp(*argv
, "lock") == 0) {
1211 mxlock
|= (1<<RTAX_REORDERING
);
1214 if (get_unsigned(&reord
, *argv
, 0))
1215 invarg("\"reordering\" value is invalid\n", *argv
);
1216 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_REORDERING
, reord
);
1217 } else if (strcmp(*argv
, "rtt") == 0) {
1221 if (strcmp(*argv
, "lock") == 0) {
1222 mxlock
|= (1<<RTAX_RTT
);
1225 if (get_time_rtt(&rtt
, *argv
, &raw
))
1226 invarg("\"rtt\" value is invalid\n", *argv
);
1227 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_RTT
,
1228 (raw
) ? rtt
: rtt
* 8);
1229 } else if (strcmp(*argv
, "rto_min") == 0) {
1230 unsigned int rto_min
;
1233 mxlock
|= (1<<RTAX_RTO_MIN
);
1234 if (get_time_rtt(&rto_min
, *argv
, &raw
))
1235 invarg("\"rto_min\" value is invalid\n",
1237 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_RTO_MIN
,
1239 } else if (matches(*argv
, "window") == 0) {
1243 if (strcmp(*argv
, "lock") == 0) {
1244 mxlock
|= (1<<RTAX_WINDOW
);
1247 if (get_unsigned(&win
, *argv
, 0))
1248 invarg("\"window\" value is invalid\n", *argv
);
1249 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_WINDOW
, win
);
1250 } else if (matches(*argv
, "cwnd") == 0) {
1254 if (strcmp(*argv
, "lock") == 0) {
1255 mxlock
|= (1<<RTAX_CWND
);
1258 if (get_unsigned(&win
, *argv
, 0))
1259 invarg("\"cwnd\" value is invalid\n", *argv
);
1260 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_CWND
, win
);
1261 } else if (matches(*argv
, "initcwnd") == 0) {
1265 if (strcmp(*argv
, "lock") == 0) {
1266 mxlock
|= (1<<RTAX_INITCWND
);
1269 if (get_unsigned(&win
, *argv
, 0))
1270 invarg("\"initcwnd\" value is invalid\n", *argv
);
1271 rta_addattr32(mxrta
, sizeof(mxbuf
),
1272 RTAX_INITCWND
, win
);
1273 } else if (matches(*argv
, "initrwnd") == 0) {
1277 if (strcmp(*argv
, "lock") == 0) {
1278 mxlock
|= (1<<RTAX_INITRWND
);
1281 if (get_unsigned(&win
, *argv
, 0))
1282 invarg("\"initrwnd\" value is invalid\n", *argv
);
1283 rta_addattr32(mxrta
, sizeof(mxbuf
),
1284 RTAX_INITRWND
, win
);
1285 } else if (matches(*argv
, "features") == 0) {
1286 unsigned int features
= 0;
1291 if (strcmp(*argv
, "ecn") == 0)
1292 features
|= RTAX_FEATURE_ECN
;
1294 invarg("\"features\" value not valid\n", *argv
);
1298 rta_addattr32(mxrta
, sizeof(mxbuf
),
1299 RTAX_FEATURES
, features
);
1300 } else if (matches(*argv
, "quickack") == 0) {
1301 unsigned int quickack
;
1304 if (get_unsigned(&quickack
, *argv
, 0))
1305 invarg("\"quickack\" value is invalid\n", *argv
);
1306 if (quickack
!= 1 && quickack
!= 0)
1307 invarg("\"quickack\" value should be 0 or 1\n", *argv
);
1308 rta_addattr32(mxrta
, sizeof(mxbuf
),
1309 RTAX_QUICKACK
, quickack
);
1310 } else if (matches(*argv
, "congctl") == 0) {
1312 if (strcmp(*argv
, "lock") == 0) {
1313 mxlock
|= 1 << RTAX_CC_ALGO
;
1316 rta_addattr_l(mxrta
, sizeof(mxbuf
), RTAX_CC_ALGO
, *argv
,
1318 } else if (matches(*argv
, "rttvar") == 0) {
1322 if (strcmp(*argv
, "lock") == 0) {
1323 mxlock
|= (1<<RTAX_RTTVAR
);
1326 if (get_time_rtt(&win
, *argv
, &raw
))
1327 invarg("\"rttvar\" value is invalid\n", *argv
);
1328 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_RTTVAR
,
1329 (raw
) ? win
: win
* 4);
1330 } else if (matches(*argv
, "ssthresh") == 0) {
1334 if (strcmp(*argv
, "lock") == 0) {
1335 mxlock
|= (1<<RTAX_SSTHRESH
);
1338 if (get_unsigned(&win
, *argv
, 0))
1339 invarg("\"ssthresh\" value is invalid\n", *argv
);
1340 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_SSTHRESH
, win
);
1341 } else if (matches(*argv
, "realms") == 0) {
1345 if (get_rt_realms_or_raw(&realm
, *argv
))
1346 invarg("\"realm\" value is invalid\n", *argv
);
1347 addattr32(&req
.n
, sizeof(req
), RTA_FLOW
, realm
);
1348 } else if (strcmp(*argv
, "onlink") == 0) {
1349 req
.r
.rtm_flags
|= RTNH_F_ONLINK
;
1350 } else if (strcmp(*argv
, "nexthop") == 0) {
1353 } else if (matches(*argv
, "protocol") == 0) {
1357 if (rtnl_rtprot_a2n(&prot
, *argv
))
1358 invarg("\"protocol\" value is invalid\n", *argv
);
1359 req
.r
.rtm_protocol
= prot
;
1360 } else if (matches(*argv
, "table") == 0) {
1364 if (rtnl_rttable_a2n(&tid
, *argv
))
1365 invarg("\"table\" value is invalid\n", *argv
);
1367 req
.r
.rtm_table
= tid
;
1369 req
.r
.rtm_table
= RT_TABLE_UNSPEC
;
1370 addattr32(&req
.n
, sizeof(req
), RTA_TABLE
, tid
);
1373 } else if (matches(*argv
, "vrf") == 0) {
1377 tid
= ipvrf_get_table(*argv
);
1379 invarg("Invalid VRF\n", *argv
);
1381 req
.r
.rtm_table
= tid
;
1383 req
.r
.rtm_table
= RT_TABLE_UNSPEC
;
1384 addattr32(&req
.n
, sizeof(req
), RTA_TABLE
, tid
);
1387 } else if (strcmp(*argv
, "dev") == 0 ||
1388 strcmp(*argv
, "oif") == 0) {
1391 } else if (matches(*argv
, "pref") == 0) {
1395 if (strcmp(*argv
, "low") == 0)
1396 pref
= ICMPV6_ROUTER_PREF_LOW
;
1397 else if (strcmp(*argv
, "medium") == 0)
1398 pref
= ICMPV6_ROUTER_PREF_MEDIUM
;
1399 else if (strcmp(*argv
, "high") == 0)
1400 pref
= ICMPV6_ROUTER_PREF_HIGH
;
1401 else if (get_u8(&pref
, *argv
, 0))
1402 invarg("\"pref\" value is invalid\n", *argv
);
1403 addattr8(&req
.n
, sizeof(req
), RTA_PREF
, pref
);
1404 } else if (strcmp(*argv
, "encap") == 0) {
1406 struct rtattr
*rta
= (void *)buf
;
1408 rta
->rta_type
= RTA_ENCAP
;
1409 rta
->rta_len
= RTA_LENGTH(0);
1411 lwt_parse_encap(rta
, sizeof(buf
), &argc
, &argv
);
1413 if (rta
->rta_len
> RTA_LENGTH(0))
1414 addraw_l(&req
.n
, 1024
1415 , RTA_DATA(rta
), RTA_PAYLOAD(rta
));
1416 } else if (strcmp(*argv
, "ttl-propagate") == 0) {
1420 if (matches(*argv
, "enabled") == 0)
1422 else if (matches(*argv
, "disabled") == 0)
1425 invarg("\"ttl-propagate\" value is invalid\n",
1428 addattr8(&req
.n
, sizeof(req
), RTA_TTL_PROPAGATE
,
1430 } else if (matches(*argv
, "fastopen_no_cookie") == 0) {
1431 unsigned int fastopen_no_cookie
;
1434 if (get_unsigned(&fastopen_no_cookie
, *argv
, 0))
1435 invarg("\"fastopen_no_cookie\" value is invalid\n", *argv
);
1436 if (fastopen_no_cookie
!= 1 && fastopen_no_cookie
!= 0)
1437 invarg("\"fastopen_no_cookie\" value should be 0 or 1\n", *argv
);
1438 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_FASTOPEN_NO_COOKIE
, fastopen_no_cookie
);
1443 if (strcmp(*argv
, "to") == 0) {
1446 if ((**argv
< '0' || **argv
> '9') &&
1447 rtnl_rtntype_a2n(&type
, *argv
) == 0) {
1449 req
.r
.rtm_type
= type
;
1453 if (matches(*argv
, "help") == 0)
1456 duparg2("to", *argv
);
1457 get_prefix(&dst
, *argv
, req
.r
.rtm_family
);
1458 if (req
.r
.rtm_family
== AF_UNSPEC
)
1459 req
.r
.rtm_family
= dst
.family
;
1460 req
.r
.rtm_dst_len
= dst
.bitlen
;
1463 addattr_l(&req
.n
, sizeof(req
),
1464 RTA_DST
, &dst
.data
, dst
.bytelen
);
1473 int idx
= ll_name_to_index(d
);
1477 addattr32(&req
.n
, sizeof(req
), RTA_OIF
, idx
);
1480 if (mxrta
->rta_len
> RTA_LENGTH(0)) {
1482 rta_addattr32(mxrta
, sizeof(mxbuf
), RTAX_LOCK
, mxlock
);
1483 addattr_l(&req
.n
, sizeof(req
), RTA_METRICS
, RTA_DATA(mxrta
), RTA_PAYLOAD(mxrta
));
1487 parse_nexthops(&req
.n
, &req
.r
, argc
, argv
);
1489 if (req
.r
.rtm_family
== AF_UNSPEC
)
1490 req
.r
.rtm_family
= AF_INET
;
1493 if (req
.r
.rtm_type
== RTN_LOCAL
||
1494 req
.r
.rtm_type
== RTN_BROADCAST
||
1495 req
.r
.rtm_type
== RTN_NAT
||
1496 req
.r
.rtm_type
== RTN_ANYCAST
)
1497 req
.r
.rtm_table
= RT_TABLE_LOCAL
;
1500 if (req
.r
.rtm_family
== AF_INET6
||
1501 req
.r
.rtm_family
== AF_MPLS
)
1502 req
.r
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1503 else if (req
.r
.rtm_type
== RTN_LOCAL
||
1504 req
.r
.rtm_type
== RTN_NAT
)
1505 req
.r
.rtm_scope
= RT_SCOPE_HOST
;
1506 else if (req
.r
.rtm_type
== RTN_BROADCAST
||
1507 req
.r
.rtm_type
== RTN_MULTICAST
||
1508 req
.r
.rtm_type
== RTN_ANYCAST
)
1509 req
.r
.rtm_scope
= RT_SCOPE_LINK
;
1510 else if (req
.r
.rtm_type
== RTN_UNICAST
||
1511 req
.r
.rtm_type
== RTN_UNSPEC
) {
1512 if (cmd
== RTM_DELROUTE
)
1513 req
.r
.rtm_scope
= RT_SCOPE_NOWHERE
;
1514 else if (!gw_ok
&& !nhs_ok
)
1515 req
.r
.rtm_scope
= RT_SCOPE_LINK
;
1519 if (!type_ok
&& req
.r
.rtm_family
== AF_MPLS
)
1520 req
.r
.rtm_type
= RTN_UNICAST
;
1522 if (rtnl_talk(&rth
, &req
.n
, NULL
) < 0)
1528 static int rtnl_rtcache_request(struct rtnl_handle
*rth
, int family
)
1531 struct nlmsghdr nlh
;
1534 .nlh
.nlmsg_len
= sizeof(req
),
1535 .nlh
.nlmsg_type
= RTM_GETROUTE
,
1536 .nlh
.nlmsg_flags
= NLM_F_ROOT
| NLM_F_REQUEST
,
1537 .nlh
.nlmsg_seq
= rth
->dump
= ++rth
->seq
,
1538 .rtm
.rtm_family
= family
,
1539 .rtm
.rtm_flags
= RTM_F_CLONED
,
1541 struct sockaddr_nl nladdr
= { .nl_family
= AF_NETLINK
};
1543 return sendto(rth
->fd
, (void *)&req
, sizeof(req
), 0, (struct sockaddr
*)&nladdr
, sizeof(nladdr
));
1546 static int iproute_flush_cache(void)
1548 #define ROUTE_FLUSH_PATH "/proc/sys/net/ipv4/route/flush"
1551 int flush_fd
= open(ROUTE_FLUSH_PATH
, O_WRONLY
);
1552 char *buffer
= "-1";
1555 fprintf(stderr
, "Cannot open \"%s\": %s\n",
1556 ROUTE_FLUSH_PATH
, strerror(errno
));
1560 len
= strlen(buffer
);
1562 if ((write(flush_fd
, (void *)buffer
, len
)) < len
) {
1563 fprintf(stderr
, "Cannot flush routing cache\n");
1571 static __u32 route_dump_magic
= 0x45311224;
1573 static int save_route(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
,
1577 int len
= n
->nlmsg_len
;
1578 struct rtmsg
*r
= NLMSG_DATA(n
);
1579 struct rtattr
*tb
[RTA_MAX
+1];
1582 host_len
= af_bit_len(r
->rtm_family
);
1583 len
-= NLMSG_LENGTH(sizeof(*r
));
1584 parse_rtattr(tb
, RTA_MAX
, RTM_RTA(r
), len
);
1586 if (!filter_nlmsg(n
, tb
, host_len
))
1589 ret
= write(STDOUT_FILENO
, n
, n
->nlmsg_len
);
1590 if ((ret
> 0) && (ret
!= n
->nlmsg_len
)) {
1591 fprintf(stderr
, "Short write while saving nlmsg\n");
1595 return ret
== n
->nlmsg_len
? 0 : ret
;
1598 static int save_route_prep(void)
1602 if (isatty(STDOUT_FILENO
)) {
1603 fprintf(stderr
, "Not sending a binary stream to stdout\n");
1607 ret
= write(STDOUT_FILENO
, &route_dump_magic
, sizeof(route_dump_magic
));
1608 if (ret
!= sizeof(route_dump_magic
)) {
1609 fprintf(stderr
, "Can't write magic to dump file\n");
1616 static int iproute_flush(int do_ipv6
, rtnl_filter_t filter_fn
)
1618 time_t start
= time(0);
1619 char flushb
[4096-512];
1623 if (filter
.cloned
) {
1624 if (do_ipv6
!= AF_INET6
) {
1625 iproute_flush_cache();
1627 printf("*** IPv4 routing cache is flushed.\n");
1629 if (do_ipv6
== AF_INET
)
1633 filter
.flushb
= flushb
;
1635 filter
.flushe
= sizeof(flushb
);
1638 if (rtnl_wilddump_request(&rth
, do_ipv6
, RTM_GETROUTE
) < 0) {
1639 perror("Cannot send dump request");
1643 if (rtnl_dump_filter(&rth
, filter_fn
, stdout
) < 0) {
1644 fprintf(stderr
, "Flush terminated\n");
1647 if (filter
.flushed
== 0) {
1650 (!filter
.cloned
|| do_ipv6
== AF_INET6
))
1651 printf("Nothing to flush.\n");
1653 printf("*** Flush is complete after %d round%s ***\n",
1654 round
, round
> 1 ? "s" : "");
1660 ret
= flush_update();
1664 if (time(0) - start
> 30) {
1665 printf("\n*** Flush not completed after %ld seconds, %d entries remain ***\n",
1666 (long)(time(0) - start
), filter
.flushed
);
1671 printf("\n*** Round %d, deleting %d entries ***\n",
1672 round
, filter
.flushed
);
1678 static int iproute_list_flush_or_save(int argc
, char **argv
, int action
)
1680 int do_ipv6
= preferred_family
;
1683 unsigned int mark
= 0;
1684 rtnl_filter_t filter_fn
;
1686 if (action
== IPROUTE_SAVE
) {
1687 if (save_route_prep())
1690 filter_fn
= save_route
;
1692 filter_fn
= print_route
;
1694 iproute_reset_filter(0);
1695 filter
.tb
= RT_TABLE_MAIN
;
1697 if ((action
== IPROUTE_FLUSH
) && argc
<= 0) {
1698 fprintf(stderr
, "\"ip route flush\" requires arguments.\n");
1703 if (matches(*argv
, "table") == 0) {
1707 if (rtnl_rttable_a2n(&tid
, *argv
)) {
1708 if (strcmp(*argv
, "all") == 0) {
1710 } else if (strcmp(*argv
, "cache") == 0) {
1712 } else if (strcmp(*argv
, "help") == 0) {
1715 invarg("table id value is invalid\n", *argv
);
1719 } else if (matches(*argv
, "vrf") == 0) {
1723 tid
= ipvrf_get_table(*argv
);
1725 invarg("Invalid VRF\n", *argv
);
1727 filter
.typemask
= ~(1 << RTN_LOCAL
| 1<<RTN_BROADCAST
);
1728 } else if (matches(*argv
, "cached") == 0 ||
1729 matches(*argv
, "cloned") == 0) {
1731 } else if (strcmp(*argv
, "tos") == 0 ||
1732 matches(*argv
, "dsfield") == 0) {
1736 if (rtnl_dsfield_a2n(&tos
, *argv
))
1737 invarg("TOS value is invalid\n", *argv
);
1739 filter
.tosmask
= -1;
1740 } else if (matches(*argv
, "protocol") == 0) {
1744 filter
.protocolmask
= -1;
1745 if (rtnl_rtprot_a2n(&prot
, *argv
)) {
1746 if (strcmp(*argv
, "all") != 0)
1747 invarg("invalid \"protocol\"\n", *argv
);
1749 filter
.protocolmask
= 0;
1751 filter
.protocol
= prot
;
1752 } else if (matches(*argv
, "scope") == 0) {
1756 filter
.scopemask
= -1;
1757 if (rtnl_rtscope_a2n(&scope
, *argv
)) {
1758 if (strcmp(*argv
, "all") != 0)
1759 invarg("invalid \"scope\"\n", *argv
);
1760 scope
= RT_SCOPE_NOWHERE
;
1761 filter
.scopemask
= 0;
1763 filter
.scope
= scope
;
1764 } else if (matches(*argv
, "type") == 0) {
1768 if (rtnl_rtntype_a2n(&type
, *argv
))
1769 invarg("node type value is invalid\n", *argv
);
1770 filter
.typemask
= (1<<type
);
1771 } else if (strcmp(*argv
, "dev") == 0 ||
1772 strcmp(*argv
, "oif") == 0) {
1775 } else if (strcmp(*argv
, "iif") == 0) {
1778 } else if (strcmp(*argv
, "mark") == 0) {
1780 if (get_unsigned(&mark
, *argv
, 0))
1781 invarg("invalid mark value", *argv
);
1782 filter
.markmask
= -1;
1783 } else if (matches(*argv
, "metric") == 0 ||
1784 matches(*argv
, "priority") == 0 ||
1785 strcmp(*argv
, "preference") == 0) {
1789 if (get_u32(&metric
, *argv
, 0))
1790 invarg("\"metric\" value is invalid\n", *argv
);
1791 filter
.metric
= metric
;
1792 filter
.metricmask
= -1;
1793 } else if (strcmp(*argv
, "via") == 0) {
1797 family
= read_family(*argv
);
1798 if (family
== AF_UNSPEC
)
1802 get_prefix(&filter
.rvia
, *argv
, family
);
1803 } else if (strcmp(*argv
, "src") == 0) {
1805 get_prefix(&filter
.rprefsrc
, *argv
, do_ipv6
);
1806 } else if (matches(*argv
, "realms") == 0) {
1810 if (get_rt_realms_or_raw(&realm
, *argv
))
1811 invarg("invalid realms\n", *argv
);
1812 filter
.realm
= realm
;
1813 filter
.realmmask
= ~0U;
1814 if ((filter
.realm
&0xFFFF) == 0 &&
1815 (*argv
)[strlen(*argv
) - 1] == '/')
1816 filter
.realmmask
&= ~0xFFFF;
1817 if ((filter
.realm
&0xFFFF0000U
) == 0 &&
1818 (strchr(*argv
, '/') == NULL
||
1820 filter
.realmmask
&= ~0xFFFF0000U
;
1821 } else if (matches(*argv
, "from") == 0) {
1823 if (matches(*argv
, "root") == 0) {
1825 get_prefix(&filter
.rsrc
, *argv
, do_ipv6
);
1826 } else if (matches(*argv
, "match") == 0) {
1828 get_prefix(&filter
.msrc
, *argv
, do_ipv6
);
1830 if (matches(*argv
, "exact") == 0) {
1833 get_prefix(&filter
.msrc
, *argv
, do_ipv6
);
1834 filter
.rsrc
= filter
.msrc
;
1837 if (matches(*argv
, "to") == 0) {
1840 if (matches(*argv
, "root") == 0) {
1842 get_prefix(&filter
.rdst
, *argv
, do_ipv6
);
1843 } else if (matches(*argv
, "match") == 0) {
1845 get_prefix(&filter
.mdst
, *argv
, do_ipv6
);
1847 if (matches(*argv
, "exact") == 0) {
1850 get_prefix(&filter
.mdst
, *argv
, do_ipv6
);
1851 filter
.rdst
= filter
.mdst
;
1857 if (do_ipv6
== AF_UNSPEC
&& filter
.tb
)
1864 idx
= ll_name_to_index(id
);
1868 filter
.iifmask
= -1;
1871 idx
= ll_name_to_index(od
);
1875 filter
.oifmask
= -1;
1880 if (action
== IPROUTE_FLUSH
)
1881 return iproute_flush(do_ipv6
, filter_fn
);
1883 if (!filter
.cloned
) {
1884 if (rtnl_wilddump_request(&rth
, do_ipv6
, RTM_GETROUTE
) < 0) {
1885 perror("Cannot send dump request");
1889 if (rtnl_rtcache_request(&rth
, do_ipv6
) < 0) {
1890 perror("Cannot send dump request");
1897 if (rtnl_dump_filter(&rth
, filter_fn
, stdout
) < 0) {
1898 fprintf(stderr
, "Dump terminated\n");
1908 static int iproute_get(int argc
, char **argv
)
1915 .n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct rtmsg
)),
1916 .n
.nlmsg_flags
= NLM_F_REQUEST
,
1917 .n
.nlmsg_type
= RTM_GETROUTE
,
1918 .r
.rtm_family
= preferred_family
,
1922 struct nlmsghdr
*answer
;
1926 unsigned int mark
= 0;
1928 iproute_reset_filter(0);
1932 if (strcmp(*argv
, "tos") == 0 ||
1933 matches(*argv
, "dsfield") == 0) {
1937 if (rtnl_dsfield_a2n(&tos
, *argv
))
1938 invarg("TOS value is invalid\n", *argv
);
1939 req
.r
.rtm_tos
= tos
;
1940 } else if (matches(*argv
, "from") == 0) {
1944 if (matches(*argv
, "help") == 0)
1947 get_prefix(&addr
, *argv
, req
.r
.rtm_family
);
1948 if (req
.r
.rtm_family
== AF_UNSPEC
)
1949 req
.r
.rtm_family
= addr
.family
;
1951 addattr_l(&req
.n
, sizeof(req
), RTA_SRC
,
1952 &addr
.data
, addr
.bytelen
);
1953 req
.r
.rtm_src_len
= addr
.bitlen
;
1954 } else if (matches(*argv
, "iif") == 0) {
1957 } else if (matches(*argv
, "mark") == 0) {
1959 if (get_unsigned(&mark
, *argv
, 0))
1960 invarg("invalid mark value", *argv
);
1961 } else if (matches(*argv
, "oif") == 0 ||
1962 strcmp(*argv
, "dev") == 0) {
1965 } else if (matches(*argv
, "notify") == 0) {
1966 req
.r
.rtm_flags
|= RTM_F_NOTIFY
;
1967 } else if (matches(*argv
, "connected") == 0) {
1969 } else if (matches(*argv
, "vrf") == 0) {
1971 if (!name_is_vrf(*argv
))
1972 invarg("Invalid VRF\n", *argv
);
1974 } else if (matches(*argv
, "uid") == 0) {
1978 if (get_unsigned(&uid
, *argv
, 0))
1979 invarg("invalid UID\n", *argv
);
1980 addattr32(&req
.n
, sizeof(req
), RTA_UID
, uid
);
1981 } else if (matches(*argv
, "fibmatch") == 0) {
1983 } else if (strcmp(*argv
, "as") == 0) {
1987 if (strcmp(*argv
, "to") == 0)
1989 get_addr(&addr
, *argv
, req
.r
.rtm_family
);
1990 if (req
.r
.rtm_family
== AF_UNSPEC
)
1991 req
.r
.rtm_family
= addr
.family
;
1992 addattr_l(&req
.n
, sizeof(req
), RTA_NEWDST
,
1993 &addr
.data
, addr
.bytelen
);
1997 if (strcmp(*argv
, "to") == 0) {
2000 if (matches(*argv
, "help") == 0)
2002 get_prefix(&addr
, *argv
, req
.r
.rtm_family
);
2003 if (req
.r
.rtm_family
== AF_UNSPEC
)
2004 req
.r
.rtm_family
= addr
.family
;
2006 addattr_l(&req
.n
, sizeof(req
),
2007 RTA_DST
, &addr
.data
, addr
.bytelen
);
2008 req
.r
.rtm_dst_len
= addr
.bitlen
;
2013 if (req
.r
.rtm_dst_len
== 0) {
2014 fprintf(stderr
, "need at least a destination address\n");
2022 idx
= ll_name_to_index(idev
);
2025 addattr32(&req
.n
, sizeof(req
), RTA_IIF
, idx
);
2028 idx
= ll_name_to_index(odev
);
2031 addattr32(&req
.n
, sizeof(req
), RTA_OIF
, idx
);
2035 addattr32(&req
.n
, sizeof(req
), RTA_MARK
, mark
);
2037 if (req
.r
.rtm_family
== AF_UNSPEC
)
2038 req
.r
.rtm_family
= AF_INET
;
2040 req
.r
.rtm_flags
|= RTM_F_LOOKUP_TABLE
;
2042 req
.r
.rtm_flags
|= RTM_F_FIB_MATCH
;
2044 if (rtnl_talk(&rth
, &req
.n
, &answer
) < 0)
2047 if (connected
&& !from_ok
) {
2048 struct rtmsg
*r
= NLMSG_DATA(answer
);
2049 int len
= answer
->nlmsg_len
;
2050 struct rtattr
*tb
[RTA_MAX
+1];
2052 if (print_route(NULL
, answer
, (void *)stdout
) < 0) {
2053 fprintf(stderr
, "An error :-)\n");
2058 if (answer
->nlmsg_type
!= RTM_NEWROUTE
) {
2059 fprintf(stderr
, "Not a route?\n");
2063 len
-= NLMSG_LENGTH(sizeof(*r
));
2065 fprintf(stderr
, "Wrong len %d\n", len
);
2070 parse_rtattr(tb
, RTA_MAX
, RTM_RTA(r
), len
);
2072 if (tb
[RTA_PREFSRC
]) {
2073 tb
[RTA_PREFSRC
]->rta_type
= RTA_SRC
;
2074 r
->rtm_src_len
= 8*RTA_PAYLOAD(tb
[RTA_PREFSRC
]);
2075 } else if (!tb
[RTA_SRC
]) {
2076 fprintf(stderr
, "Failed to connect the route\n");
2080 if (!odev
&& tb
[RTA_OIF
])
2081 tb
[RTA_OIF
]->rta_type
= 0;
2082 if (tb
[RTA_GATEWAY
])
2083 tb
[RTA_GATEWAY
]->rta_type
= 0;
2085 tb
[RTA_VIA
]->rta_type
= 0;
2086 if (!idev
&& tb
[RTA_IIF
])
2087 tb
[RTA_IIF
]->rta_type
= 0;
2088 req
.n
.nlmsg_flags
= NLM_F_REQUEST
;
2089 req
.n
.nlmsg_type
= RTM_GETROUTE
;
2092 if (rtnl_talk(&rth
, &req
.n
, &answer
) < 0)
2096 if (print_route(NULL
, answer
, (void *)stdout
) < 0) {
2097 fprintf(stderr
, "An error :-)\n");
2106 static int rtattr_cmp(const struct rtattr
*rta1
, const struct rtattr
*rta2
)
2108 if (!rta1
|| !rta2
|| rta1
->rta_len
!= rta2
->rta_len
)
2111 return memcmp(RTA_DATA(rta1
), RTA_DATA(rta2
), RTA_PAYLOAD(rta1
));
2114 static int restore_handler(const struct sockaddr_nl
*nl
,
2115 struct rtnl_ctrl_data
*ctrl
,
2116 struct nlmsghdr
*n
, void *arg
)
2118 struct rtmsg
*r
= NLMSG_DATA(n
);
2119 struct rtattr
*tb
[RTA_MAX
+1];
2120 int len
= n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
));
2121 int ret
, prio
= *(int *)arg
;
2123 parse_rtattr(tb
, RTA_MAX
, RTM_RTA(r
), len
);
2125 /* Restore routes in correct order:
2126 * 0. ones for local addresses,
2127 * 1. ones for local networks,
2128 * 2. others (remote networks/hosts).
2130 if (!prio
&& !tb
[RTA_GATEWAY
] && (!tb
[RTA_PREFSRC
] ||
2131 !rtattr_cmp(tb
[RTA_PREFSRC
], tb
[RTA_DST
])))
2133 else if (prio
== 1 && !tb
[RTA_GATEWAY
] && tb
[RTA_PREFSRC
] &&
2134 rtattr_cmp(tb
[RTA_PREFSRC
], tb
[RTA_DST
]))
2136 else if (prio
== 2 && tb
[RTA_GATEWAY
])
2142 n
->nlmsg_flags
|= NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_ACK
;
2146 ret
= rtnl_talk(&rth
, n
, NULL
);
2147 if ((ret
< 0) && (errno
== EEXIST
))
2153 static int route_dump_check_magic(void)
2158 if (isatty(STDIN_FILENO
)) {
2159 fprintf(stderr
, "Can't restore route dump from a terminal\n");
2163 ret
= fread(&magic
, sizeof(magic
), 1, stdin
);
2164 if (magic
!= route_dump_magic
) {
2165 fprintf(stderr
, "Magic mismatch (%d elems, %x magic)\n", ret
, magic
);
2172 static int iproute_restore(void)
2176 if (route_dump_check_magic())
2181 perror("Failed to restore: ftell");
2185 for (prio
= 0; prio
< 3; prio
++) {
2188 err
= rtnl_from_file(stdin
, &restore_handler
, &prio
);
2192 if (fseek(stdin
, pos
, SEEK_SET
) == -1) {
2193 perror("Failed to restore: fseek");
2201 static int show_handler(const struct sockaddr_nl
*nl
,
2202 struct rtnl_ctrl_data
*ctrl
,
2203 struct nlmsghdr
*n
, void *arg
)
2205 print_route(nl
, n
, stdout
);
2209 static int iproute_showdump(void)
2211 if (route_dump_check_magic())
2214 if (rtnl_from_file(stdin
, &show_handler
, NULL
))
2220 void iproute_reset_filter(int ifindex
)
2222 memset(&filter
, 0, sizeof(filter
));
2223 filter
.mdst
.bitlen
= -1;
2224 filter
.msrc
.bitlen
= -1;
2225 filter
.oif
= ifindex
;
2227 filter
.oifmask
= -1;
2230 int do_iproute(int argc
, char **argv
)
2233 return iproute_list_flush_or_save(0, NULL
, IPROUTE_LIST
);
2235 if (matches(*argv
, "add") == 0)
2236 return iproute_modify(RTM_NEWROUTE
, NLM_F_CREATE
|NLM_F_EXCL
,
2238 if (matches(*argv
, "change") == 0 || strcmp(*argv
, "chg") == 0)
2239 return iproute_modify(RTM_NEWROUTE
, NLM_F_REPLACE
,
2241 if (matches(*argv
, "replace") == 0)
2242 return iproute_modify(RTM_NEWROUTE
, NLM_F_CREATE
|NLM_F_REPLACE
,
2244 if (matches(*argv
, "prepend") == 0)
2245 return iproute_modify(RTM_NEWROUTE
, NLM_F_CREATE
,
2247 if (matches(*argv
, "append") == 0)
2248 return iproute_modify(RTM_NEWROUTE
, NLM_F_CREATE
|NLM_F_APPEND
,
2250 if (matches(*argv
, "test") == 0)
2251 return iproute_modify(RTM_NEWROUTE
, NLM_F_EXCL
,
2253 if (matches(*argv
, "delete") == 0)
2254 return iproute_modify(RTM_DELROUTE
, 0,
2256 if (matches(*argv
, "list") == 0 || matches(*argv
, "show") == 0
2257 || matches(*argv
, "lst") == 0)
2258 return iproute_list_flush_or_save(argc
-1, argv
+1, IPROUTE_LIST
);
2259 if (matches(*argv
, "get") == 0)
2260 return iproute_get(argc
-1, argv
+1);
2261 if (matches(*argv
, "flush") == 0)
2262 return iproute_list_flush_or_save(argc
-1, argv
+1, IPROUTE_FLUSH
);
2263 if (matches(*argv
, "save") == 0)
2264 return iproute_list_flush_or_save(argc
-1, argv
+1, IPROUTE_SAVE
);
2265 if (matches(*argv
, "restore") == 0)
2266 return iproute_restore();
2267 if (matches(*argv
, "showdump") == 0)
2268 return iproute_showdump();
2269 if (matches(*argv
, "help") == 0)
2273 "Command \"%s\" is unknown, try \"ip route help\".\n", *argv
);