osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * iproute.c "ip route". |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| 10 | * |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 11 | */ |
| 12 | |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <unistd.h> |
| 16 | #include <syslog.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <string.h> |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 19 | #include <time.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 20 | #include <sys/time.h> |
| 21 | #include <sys/socket.h> |
| 22 | #include <netinet/in.h> |
| 23 | #include <netinet/ip.h> |
| 24 | #include <arpa/inet.h> |
| 25 | #include <linux/in_route.h> |
Lubomir Rintel | 194e9b8 | 2015-03-16 16:01:47 +0100 | [diff] [blame] | 26 | #include <linux/icmpv6.h> |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 27 | #include <errno.h> |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 28 | |
| 29 | #include "rt_names.h" |
| 30 | #include "utils.h" |
| 31 | #include "ip_common.h" |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 32 | #include "iproute_lwtunnel.h" |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 33 | |
| 34 | #ifndef RTAX_RTTVAR |
| 35 | #define RTAX_RTTVAR RTAX_HOPS |
| 36 | #endif |
| 37 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 38 | enum list_action { |
| 39 | IPROUTE_LIST, |
| 40 | IPROUTE_FLUSH, |
| 41 | IPROUTE_SAVE, |
| 42 | }; |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 43 | static const char *mx_names[RTAX_MAX+1] = { |
| 44 | [RTAX_MTU] = "mtu", |
| 45 | [RTAX_WINDOW] = "window", |
| 46 | [RTAX_RTT] = "rtt", |
| 47 | [RTAX_RTTVAR] = "rttvar", |
| 48 | [RTAX_SSTHRESH] = "ssthresh", |
| 49 | [RTAX_CWND] = "cwnd", |
| 50 | [RTAX_ADVMSS] = "advmss", |
| 51 | [RTAX_REORDERING]="reordering", |
| 52 | [RTAX_HOPLIMIT] = "hoplimit", |
| 53 | [RTAX_INITCWND] = "initcwnd", |
| 54 | [RTAX_FEATURES] = "features", |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 55 | [RTAX_RTO_MIN] = "rto_min", |
laurent chavey | f5fd800 | 2009-12-15 13:05:15 +0000 | [diff] [blame] | 56 | [RTAX_INITRWND] = "initrwnd", |
Cong Wang | b37f2c8 | 2013-06-15 09:39:19 +0800 | [diff] [blame] | 57 | [RTAX_QUICKACK] = "quickack", |
Daniel Borkmann | 6ef87f9 | 2015-01-09 00:13:06 +0100 | [diff] [blame] | 58 | [RTAX_CC_ALGO] = "congctl", |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 59 | }; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 60 | static void usage(void) __attribute__((noreturn)); |
| 61 | |
| 62 | static void usage(void) |
| 63 | { |
| 64 | fprintf(stderr, "Usage: ip route { list | flush } SELECTOR\n"); |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 65 | fprintf(stderr, " ip route save SELECTOR\n"); |
| 66 | fprintf(stderr, " ip route restore\n"); |
Pavel Emelyanov | 93b7986 | 2012-07-27 08:57:20 +0400 | [diff] [blame] | 67 | fprintf(stderr, " ip route showdump\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 68 | fprintf(stderr, " ip route get ADDRESS [ from ADDRESS iif STRING ]\n"); |
Richard Godbee | 8f48063 | 2013-08-25 22:19:11 -0400 | [diff] [blame] | 69 | fprintf(stderr, " [ oif STRING ] [ tos TOS ]\n"); |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 70 | fprintf(stderr, " [ mark NUMBER ]\n"); |
Andreas Henriksson | c0c44bf | 2011-07-20 17:08:14 +0200 | [diff] [blame] | 71 | fprintf(stderr, " ip route { add | del | change | append | replace } ROUTE\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 72 | fprintf(stderr, "SELECTOR := [ root PREFIX ] [ match PREFIX ] [ exact PREFIX ]\n"); |
| 73 | fprintf(stderr, " [ table TABLE_ID ] [ proto RTPROTO ]\n"); |
| 74 | fprintf(stderr, " [ type TYPE ] [ scope SCOPE ]\n"); |
| 75 | fprintf(stderr, "ROUTE := NODE_SPEC [ INFO_SPEC ]\n"); |
| 76 | fprintf(stderr, "NODE_SPEC := [ TYPE ] PREFIX [ tos TOS ]\n"); |
| 77 | fprintf(stderr, " [ table TABLE_ID ] [ proto RTPROTO ]\n"); |
| 78 | fprintf(stderr, " [ scope SCOPE ] [ metric METRIC ]\n"); |
| 79 | fprintf(stderr, "INFO_SPEC := NH OPTIONS FLAGS [ nexthop NH ]...\n"); |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 80 | fprintf(stderr, "NH := [ encap ENCAPTYPE ENCAPHDR ] [ via [ FAMILY ] ADDRESS ]\n"); |
| 81 | fprintf(stderr, " [ dev STRING ] [ weight NUMBER ] NHFLAGS\n"); |
Thomas Graf | 38a7f26 | 2015-05-06 17:25:39 +0200 | [diff] [blame] | 82 | fprintf(stderr, "FAMILY := [ inet | inet6 | ipx | dnet | mpls | bridge | link ]\n"); |
Eric W. Biederman | 6f7a9f4 | 2015-03-15 14:53:11 -0500 | [diff] [blame] | 83 | fprintf(stderr, "OPTIONS := FLAGS [ mtu NUMBER ] [ advmss NUMBER ] [ as [ to ] ADDRESS ]\n"); |
Richard Godbee | 8f48063 | 2013-08-25 22:19:11 -0400 | [diff] [blame] | 84 | fprintf(stderr, " [ rtt TIME ] [ rttvar TIME ] [ reordering NUMBER ]\n"); |
Vince Worthington | a1f1143 | 2006-07-17 14:10:09 -0400 | [diff] [blame] | 85 | fprintf(stderr, " [ window NUMBER] [ cwnd NUMBER ] [ initcwnd NUMBER ]\n"); |
Alexander Wirt | 576c63e | 2007-10-12 10:56:37 +0200 | [diff] [blame] | 86 | fprintf(stderr, " [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n"); |
laurent chavey | f5fd800 | 2009-12-15 13:05:15 +0000 | [diff] [blame] | 87 | fprintf(stderr, " [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n"); |
Daniel Borkmann | 6ef87f9 | 2015-01-09 00:13:06 +0100 | [diff] [blame] | 88 | fprintf(stderr, " [ features FEATURES ] [ quickack BOOL ] [ congctl NAME ]\n"); |
Hangbin Liu | 68eede2 | 2015-12-21 16:29:36 +0800 | [diff] [blame] | 89 | fprintf(stderr, " [ pref PREF ] [ expires TIME ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 90 | fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n"); |
| 91 | fprintf(stderr, " unreachable | prohibit | blackhole | nat ]\n"); |
| 92 | fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n"); |
| 93 | fprintf(stderr, "SCOPE := [ host | link | global | NUMBER ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 94 | fprintf(stderr, "NHFLAGS := [ onlink | pervasive ]\n"); |
| 95 | fprintf(stderr, "RTPROTO := [ kernel | boot | static | NUMBER ]\n"); |
Lubomir Rintel | 194e9b8 | 2015-03-16 16:01:47 +0100 | [diff] [blame] | 96 | fprintf(stderr, "PREF := [ low | medium | high ]\n"); |
Gerrit Renker | 9b2cdc0 | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 97 | fprintf(stderr, "TIME := NUMBER[s|ms]\n"); |
Cong Wang | b37f2c8 | 2013-06-15 09:39:19 +0800 | [diff] [blame] | 98 | fprintf(stderr, "BOOL := [1|0]\n"); |
Florian Westphal | 29d1f73 | 2014-11-06 22:15:32 +0100 | [diff] [blame] | 99 | fprintf(stderr, "FEATURES := ecn\n"); |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 100 | fprintf(stderr, "ENCAPTYPE := [ mpls | ip | ip6 ]\n"); |
| 101 | fprintf(stderr, "ENCAPHDR := [ MPLSLABEL ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 102 | exit(-1); |
| 103 | } |
| 104 | |
| 105 | |
| 106 | static struct |
| 107 | { |
Stephen Hemminger | caae16b | 2013-02-12 11:41:46 -0800 | [diff] [blame] | 108 | unsigned int tb; |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 109 | int cloned; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 110 | int flushed; |
| 111 | char *flushb; |
| 112 | int flushp; |
| 113 | int flushe; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 114 | int protocol, protocolmask; |
| 115 | int scope, scopemask; |
| 116 | int type, typemask; |
| 117 | int tos, tosmask; |
| 118 | int iif, iifmask; |
| 119 | int oif, oifmask; |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 120 | int mark, markmask; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 121 | int realm, realmmask; |
| 122 | inet_prefix rprefsrc; |
| 123 | inet_prefix rvia; |
| 124 | inet_prefix rdst; |
| 125 | inet_prefix mdst; |
| 126 | inet_prefix rsrc; |
| 127 | inet_prefix msrc; |
| 128 | } filter; |
| 129 | |
| 130 | static int flush_update(void) |
| 131 | { |
Stephen Hemminger | f31a37f | 2008-01-31 21:38:58 -0800 | [diff] [blame] | 132 | if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) { |
Stephen Hemminger | 1fb0a99 | 2008-01-26 11:08:31 -0800 | [diff] [blame] | 133 | perror("Failed to send flush request"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 134 | return -1; |
| 135 | } |
| 136 | filter.flushp = 0; |
| 137 | return 0; |
| 138 | } |
| 139 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 140 | static int filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int host_len) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 141 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 142 | struct rtmsg *r = NLMSG_DATA(n); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 143 | inet_prefix dst; |
| 144 | inet_prefix src; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 145 | inet_prefix via; |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 146 | inet_prefix prefsrc; |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 147 | __u32 table; |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 148 | static int ip6_multiple_tables; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 149 | |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 150 | table = rtm_get_table(r, tb); |
| 151 | |
Andrew Vagin | 5b9ac19 | 2015-09-23 14:43:46 +0300 | [diff] [blame] | 152 | if (preferred_family != AF_UNSPEC && r->rtm_family != preferred_family) |
| 153 | return 0; |
| 154 | |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 155 | if (r->rtm_family == AF_INET6 && table != RT_TABLE_MAIN) |
Patrick McHardy | e0b29fe | 2006-08-10 22:42:58 +0200 | [diff] [blame] | 156 | ip6_multiple_tables = 1; |
| 157 | |
Ulrich Weber | 4479282 | 2010-07-23 15:36:08 +0200 | [diff] [blame] | 158 | if (filter.cloned == !(r->rtm_flags&RTM_F_CLONED)) |
| 159 | return 0; |
| 160 | |
Patrick McHardy | e0b29fe | 2006-08-10 22:42:58 +0200 | [diff] [blame] | 161 | if (r->rtm_family == AF_INET6 && !ip6_multiple_tables) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 162 | if (filter.tb) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 163 | if (filter.tb == RT_TABLE_LOCAL) { |
| 164 | if (r->rtm_type != RTN_LOCAL) |
| 165 | return 0; |
| 166 | } else if (filter.tb == RT_TABLE_MAIN) { |
| 167 | if (r->rtm_type == RTN_LOCAL) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 168 | return 0; |
| 169 | } else { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 170 | return 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 171 | } |
| 172 | } |
| 173 | } else { |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 174 | if (filter.tb > 0 && filter.tb != table) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 175 | return 0; |
| 176 | } |
| 177 | if ((filter.protocol^r->rtm_protocol)&filter.protocolmask) |
| 178 | return 0; |
| 179 | if ((filter.scope^r->rtm_scope)&filter.scopemask) |
| 180 | return 0; |
| 181 | if ((filter.type^r->rtm_type)&filter.typemask) |
| 182 | return 0; |
| 183 | if ((filter.tos^r->rtm_tos)&filter.tosmask) |
| 184 | return 0; |
| 185 | if (filter.rdst.family && |
| 186 | (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) |
| 187 | return 0; |
| 188 | if (filter.mdst.family && |
| 189 | (r->rtm_family != filter.mdst.family || |
| 190 | (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) |
| 191 | return 0; |
| 192 | if (filter.rsrc.family && |
| 193 | (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) |
| 194 | return 0; |
| 195 | if (filter.msrc.family && |
| 196 | (r->rtm_family != filter.msrc.family || |
| 197 | (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) |
| 198 | return 0; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 199 | if (filter.rvia.family) { |
| 200 | int family = r->rtm_family; |
| 201 | if (tb[RTA_VIA]) { |
| 202 | struct rtvia *via = RTA_DATA(tb[RTA_VIA]); |
| 203 | family = via->rtvia_family; |
| 204 | } |
| 205 | if (family != filter.rvia.family) |
| 206 | return 0; |
| 207 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 208 | if (filter.rprefsrc.family && r->rtm_family != filter.rprefsrc.family) |
| 209 | return 0; |
| 210 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 211 | memset(&dst, 0, sizeof(dst)); |
| 212 | dst.family = r->rtm_family; |
| 213 | if (tb[RTA_DST]) |
| 214 | memcpy(&dst.data, RTA_DATA(tb[RTA_DST]), (r->rtm_dst_len+7)/8); |
| 215 | if (filter.rsrc.family || filter.msrc.family) { |
| 216 | memset(&src, 0, sizeof(src)); |
| 217 | src.family = r->rtm_family; |
| 218 | if (tb[RTA_SRC]) |
| 219 | memcpy(&src.data, RTA_DATA(tb[RTA_SRC]), (r->rtm_src_len+7)/8); |
| 220 | } |
| 221 | if (filter.rvia.bitlen>0) { |
| 222 | memset(&via, 0, sizeof(via)); |
| 223 | via.family = r->rtm_family; |
| 224 | if (tb[RTA_GATEWAY]) |
shemminger | 7849fb5 | 2005-10-12 22:49:50 +0000 | [diff] [blame] | 225 | memcpy(&via.data, RTA_DATA(tb[RTA_GATEWAY]), host_len/8); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 226 | if (tb[RTA_VIA]) { |
| 227 | size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2; |
| 228 | struct rtvia *rtvia = RTA_DATA(tb[RTA_VIA]); |
| 229 | via.family = rtvia->rtvia_family; |
| 230 | memcpy(&via.data, rtvia->rtvia_addr, len); |
| 231 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 232 | } |
| 233 | if (filter.rprefsrc.bitlen>0) { |
| 234 | memset(&prefsrc, 0, sizeof(prefsrc)); |
| 235 | prefsrc.family = r->rtm_family; |
| 236 | if (tb[RTA_PREFSRC]) |
shemminger | 7849fb5 | 2005-10-12 22:49:50 +0000 | [diff] [blame] | 237 | memcpy(&prefsrc.data, RTA_DATA(tb[RTA_PREFSRC]), host_len/8); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | if (filter.rdst.family && inet_addr_match(&dst, &filter.rdst, filter.rdst.bitlen)) |
| 241 | return 0; |
| 242 | if (filter.mdst.family && filter.mdst.bitlen >= 0 && |
| 243 | inet_addr_match(&dst, &filter.mdst, r->rtm_dst_len)) |
| 244 | return 0; |
| 245 | |
| 246 | if (filter.rsrc.family && inet_addr_match(&src, &filter.rsrc, filter.rsrc.bitlen)) |
| 247 | return 0; |
| 248 | if (filter.msrc.family && filter.msrc.bitlen >= 0 && |
| 249 | inet_addr_match(&src, &filter.msrc, r->rtm_src_len)) |
| 250 | return 0; |
| 251 | |
| 252 | if (filter.rvia.family && inet_addr_match(&via, &filter.rvia, filter.rvia.bitlen)) |
| 253 | return 0; |
| 254 | if (filter.rprefsrc.family && inet_addr_match(&prefsrc, &filter.rprefsrc, filter.rprefsrc.bitlen)) |
| 255 | return 0; |
| 256 | if (filter.realmmask) { |
| 257 | __u32 realms = 0; |
| 258 | if (tb[RTA_FLOW]) |
Stephen Hemminger | ff24746 | 2012-04-10 08:47:55 -0700 | [diff] [blame] | 259 | realms = rta_getattr_u32(tb[RTA_FLOW]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 260 | if ((realms^filter.realm)&filter.realmmask) |
| 261 | return 0; |
| 262 | } |
| 263 | if (filter.iifmask) { |
| 264 | int iif = 0; |
| 265 | if (tb[RTA_IIF]) |
| 266 | iif = *(int*)RTA_DATA(tb[RTA_IIF]); |
| 267 | if ((iif^filter.iif)&filter.iifmask) |
| 268 | return 0; |
| 269 | } |
| 270 | if (filter.oifmask) { |
| 271 | int oif = 0; |
| 272 | if (tb[RTA_OIF]) |
| 273 | oif = *(int*)RTA_DATA(tb[RTA_OIF]); |
| 274 | if ((oif^filter.oif)&filter.oifmask) |
| 275 | return 0; |
| 276 | } |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 277 | if (filter.markmask) { |
| 278 | int mark = 0; |
| 279 | if (tb[RTA_MARK]) |
| 280 | mark = *(int *)RTA_DATA(tb[RTA_MARK]); |
| 281 | if ((mark ^ filter.mark) & filter.markmask) |
| 282 | return 0; |
| 283 | } |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 284 | if (filter.flushb && |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 285 | r->rtm_family == AF_INET6 && |
| 286 | r->rtm_dst_len == 0 && |
| 287 | r->rtm_type == RTN_UNREACHABLE && |
| 288 | tb[RTA_PRIORITY] && |
| 289 | *(int*)RTA_DATA(tb[RTA_PRIORITY]) == -1) |
| 290 | return 0; |
| 291 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 292 | return 1; |
| 293 | } |
| 294 | |
Florian Westphal | 29d1f73 | 2014-11-06 22:15:32 +0100 | [diff] [blame] | 295 | static void print_rtax_features(FILE *fp, unsigned int features) |
| 296 | { |
| 297 | unsigned int of = features; |
| 298 | |
| 299 | if (features & RTAX_FEATURE_ECN) { |
| 300 | fprintf(fp, " ecn"); |
| 301 | features &= ~RTAX_FEATURE_ECN; |
| 302 | } |
| 303 | |
| 304 | if (features) |
| 305 | fprintf(fp, " 0x%x", of); |
| 306 | } |
| 307 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 308 | int print_route(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg) |
| 309 | { |
| 310 | FILE *fp = (FILE*)arg; |
| 311 | struct rtmsg *r = NLMSG_DATA(n); |
| 312 | int len = n->nlmsg_len; |
| 313 | struct rtattr * tb[RTA_MAX+1]; |
| 314 | char abuf[256]; |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 315 | int host_len; |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 316 | __u32 table; |
| 317 | SPRINT_BUF(b1); |
| 318 | static int hz; |
| 319 | |
| 320 | if (n->nlmsg_type != RTM_NEWROUTE && n->nlmsg_type != RTM_DELROUTE) { |
| 321 | fprintf(stderr, "Not a route: %08x %08x %08x\n", |
| 322 | n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags); |
| 323 | return 0; |
| 324 | } |
| 325 | if (filter.flushb && n->nlmsg_type != RTM_NEWROUTE) |
| 326 | return 0; |
| 327 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 328 | if (len < 0) { |
| 329 | fprintf(stderr, "BUG: wrong nlmsg len %d\n", len); |
| 330 | return -1; |
| 331 | } |
| 332 | |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 333 | host_len = af_bit_len(r->rtm_family); |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 334 | |
| 335 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); |
| 336 | table = rtm_get_table(r, tb); |
| 337 | |
| 338 | if (!filter_nlmsg(n, tb, host_len)) |
| 339 | return 0; |
| 340 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 341 | if (filter.flushb) { |
| 342 | struct nlmsghdr *fn; |
| 343 | if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { |
| 344 | if (flush_update()) |
| 345 | return -1; |
| 346 | } |
| 347 | fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp)); |
| 348 | memcpy(fn, n, n->nlmsg_len); |
| 349 | fn->nlmsg_type = RTM_DELROUTE; |
| 350 | fn->nlmsg_flags = NLM_F_REQUEST; |
shemminger | 351efcd | 2005-09-01 19:21:50 +0000 | [diff] [blame] | 351 | fn->nlmsg_seq = ++rth.seq; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 352 | filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb; |
| 353 | filter.flushed++; |
| 354 | if (show_stats < 2) |
| 355 | return 0; |
| 356 | } |
| 357 | |
| 358 | if (n->nlmsg_type == RTM_DELROUTE) |
| 359 | fprintf(fp, "Deleted "); |
Masatake YAMATO | 577e5a5 | 2014-03-12 12:46:53 +0900 | [diff] [blame] | 360 | if ((r->rtm_type != RTN_UNICAST || show_details > 0) && !filter.type) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 361 | fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1))); |
| 362 | |
| 363 | if (tb[RTA_DST]) { |
| 364 | if (r->rtm_dst_len != host_len) { |
| 365 | fprintf(fp, "%s/%u ", rt_addr_n2a(r->rtm_family, |
Eric W. Biederman | 26dcdf3 | 2015-03-15 14:48:32 -0500 | [diff] [blame] | 366 | RTA_PAYLOAD(tb[RTA_DST]), |
| 367 | RTA_DATA(tb[RTA_DST]), |
| 368 | abuf, sizeof(abuf)), |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 369 | r->rtm_dst_len |
| 370 | ); |
| 371 | } else { |
| 372 | fprintf(fp, "%s ", format_host(r->rtm_family, |
| 373 | RTA_PAYLOAD(tb[RTA_DST]), |
| 374 | RTA_DATA(tb[RTA_DST]), |
| 375 | abuf, sizeof(abuf)) |
| 376 | ); |
| 377 | } |
| 378 | } else if (r->rtm_dst_len) { |
| 379 | fprintf(fp, "0/%d ", r->rtm_dst_len); |
| 380 | } else { |
| 381 | fprintf(fp, "default "); |
| 382 | } |
| 383 | if (tb[RTA_SRC]) { |
| 384 | if (r->rtm_src_len != host_len) { |
| 385 | fprintf(fp, "from %s/%u ", rt_addr_n2a(r->rtm_family, |
Eric W. Biederman | 26dcdf3 | 2015-03-15 14:48:32 -0500 | [diff] [blame] | 386 | RTA_PAYLOAD(tb[RTA_SRC]), |
| 387 | RTA_DATA(tb[RTA_SRC]), |
| 388 | abuf, sizeof(abuf)), |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 389 | r->rtm_src_len |
| 390 | ); |
| 391 | } else { |
| 392 | fprintf(fp, "from %s ", format_host(r->rtm_family, |
| 393 | RTA_PAYLOAD(tb[RTA_SRC]), |
| 394 | RTA_DATA(tb[RTA_SRC]), |
| 395 | abuf, sizeof(abuf)) |
| 396 | ); |
| 397 | } |
| 398 | } else if (r->rtm_src_len) { |
| 399 | fprintf(fp, "from 0/%u ", r->rtm_src_len); |
| 400 | } |
Eric W. Biederman | 6f7a9f4 | 2015-03-15 14:53:11 -0500 | [diff] [blame] | 401 | if (tb[RTA_NEWDST]) { |
| 402 | fprintf(fp, "as to %s ", format_host(r->rtm_family, |
| 403 | RTA_PAYLOAD(tb[RTA_NEWDST]), |
| 404 | RTA_DATA(tb[RTA_NEWDST]), |
| 405 | abuf, sizeof(abuf)) |
| 406 | ); |
| 407 | } |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 408 | |
| 409 | if (tb[RTA_ENCAP]) |
| 410 | lwt_print_encap(fp, tb[RTA_ENCAP_TYPE], tb[RTA_ENCAP]); |
| 411 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 412 | if (r->rtm_tos && filter.tosmask != -1) { |
| 413 | SPRINT_BUF(b1); |
| 414 | fprintf(fp, "tos %s ", rtnl_dsfield_n2a(r->rtm_tos, b1, sizeof(b1))); |
| 415 | } |
shemminger | 02d2ae5 | 2005-06-23 17:31:27 +0000 | [diff] [blame] | 416 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 417 | if (tb[RTA_GATEWAY] && filter.rvia.bitlen != host_len) { |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 418 | fprintf(fp, "via %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 419 | format_host(r->rtm_family, |
| 420 | RTA_PAYLOAD(tb[RTA_GATEWAY]), |
| 421 | RTA_DATA(tb[RTA_GATEWAY]), |
| 422 | abuf, sizeof(abuf))); |
| 423 | } |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 424 | if (tb[RTA_VIA]) { |
| 425 | size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2; |
| 426 | struct rtvia *via = RTA_DATA(tb[RTA_VIA]); |
| 427 | fprintf(fp, "via %s %s ", |
| 428 | family_name(via->rtvia_family), |
| 429 | format_host(via->rtvia_family, len, via->rtvia_addr, |
| 430 | abuf, sizeof(abuf))); |
| 431 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 432 | if (tb[RTA_OIF] && filter.oifmask != -1) |
| 433 | fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF]))); |
| 434 | |
David Ahern | bc23430 | 2015-09-21 11:19:48 -0700 | [diff] [blame] | 435 | if (table && (table != RT_TABLE_MAIN || show_details > 0) && !filter.tb) |
| 436 | fprintf(fp, " table %s ", rtnl_rttable_n2a(table, b1, sizeof(b1))); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 437 | if (!(r->rtm_flags&RTM_F_CLONED)) { |
Masatake YAMATO | 577e5a5 | 2014-03-12 12:46:53 +0900 | [diff] [blame] | 438 | if ((r->rtm_protocol != RTPROT_BOOT || show_details > 0) && filter.protocolmask != -1) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 439 | fprintf(fp, " proto %s ", rtnl_rtprot_n2a(r->rtm_protocol, b1, sizeof(b1))); |
Masatake YAMATO | 577e5a5 | 2014-03-12 12:46:53 +0900 | [diff] [blame] | 440 | if ((r->rtm_scope != RT_SCOPE_UNIVERSE || show_details > 0) && filter.scopemask != -1) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 441 | fprintf(fp, " scope %s ", rtnl_rtscope_n2a(r->rtm_scope, b1, sizeof(b1))); |
| 442 | } |
| 443 | if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) { |
| 444 | /* Do not use format_host(). It is our local addr |
| 445 | and symbolic name will not be useful. |
| 446 | */ |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 447 | fprintf(fp, " src %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 448 | rt_addr_n2a(r->rtm_family, |
Eric W. Biederman | 26dcdf3 | 2015-03-15 14:48:32 -0500 | [diff] [blame] | 449 | RTA_PAYLOAD(tb[RTA_PREFSRC]), |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 450 | RTA_DATA(tb[RTA_PREFSRC]), |
| 451 | abuf, sizeof(abuf))); |
| 452 | } |
| 453 | if (tb[RTA_PRIORITY]) |
Stephen Hemminger | ff24746 | 2012-04-10 08:47:55 -0700 | [diff] [blame] | 454 | fprintf(fp, " metric %u ", rta_getattr_u32(tb[RTA_PRIORITY])); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 455 | if (r->rtm_flags & RTNH_F_DEAD) |
| 456 | fprintf(fp, "dead "); |
| 457 | if (r->rtm_flags & RTNH_F_ONLINK) |
| 458 | fprintf(fp, "onlink "); |
| 459 | if (r->rtm_flags & RTNH_F_PERVASIVE) |
| 460 | fprintf(fp, "pervasive "); |
Stephen Hemminger | c52827e | 2015-05-27 18:29:02 -0700 | [diff] [blame] | 461 | if (r->rtm_flags & RTNH_F_OFFLOAD) |
Andy Gospodarek | aa05b98 | 2015-04-10 16:50:40 -0400 | [diff] [blame] | 462 | fprintf(fp, "offload "); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 463 | if (r->rtm_flags & RTM_F_NOTIFY) |
| 464 | fprintf(fp, "notify "); |
Andy Gospodarek | 528c255 | 2015-06-23 13:45:38 -0400 | [diff] [blame] | 465 | if (r->rtm_flags & RTNH_F_LINKDOWN) |
| 466 | fprintf(fp, "linkdown "); |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 467 | if (tb[RTA_MARK]) { |
| 468 | unsigned int mark = *(unsigned int*)RTA_DATA(tb[RTA_MARK]); |
| 469 | if (mark) { |
| 470 | if (mark >= 16) |
| 471 | fprintf(fp, " mark 0x%x", mark); |
| 472 | else |
| 473 | fprintf(fp, " mark %u", mark); |
| 474 | } |
| 475 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 476 | |
| 477 | if (tb[RTA_FLOW] && filter.realmmask != ~0U) { |
Stephen Hemminger | ff24746 | 2012-04-10 08:47:55 -0700 | [diff] [blame] | 478 | __u32 to = rta_getattr_u32(tb[RTA_FLOW]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 479 | __u32 from = to>>16; |
| 480 | to &= 0xFFFF; |
| 481 | fprintf(fp, "realm%s ", from ? "s" : ""); |
| 482 | if (from) { |
| 483 | fprintf(fp, "%s/", |
| 484 | rtnl_rtrealm_n2a(from, b1, sizeof(b1))); |
| 485 | } |
| 486 | fprintf(fp, "%s ", |
| 487 | rtnl_rtrealm_n2a(to, b1, sizeof(b1))); |
| 488 | } |
| 489 | if ((r->rtm_flags&RTM_F_CLONED) && r->rtm_family == AF_INET) { |
| 490 | __u32 flags = r->rtm_flags&~0xFFFF; |
| 491 | int first = 1; |
| 492 | |
| 493 | fprintf(fp, "%s cache ", _SL_); |
| 494 | |
| 495 | #define PRTFL(fl,flname) if (flags&RTCF_##fl) { \ |
| 496 | flags &= ~RTCF_##fl; \ |
| 497 | fprintf(fp, "%s" flname "%s", first ? "<" : "", flags ? "," : "> "); \ |
| 498 | first = 0; } |
| 499 | PRTFL(LOCAL, "local"); |
| 500 | PRTFL(REJECT, "reject"); |
| 501 | PRTFL(MULTICAST, "mc"); |
| 502 | PRTFL(BROADCAST, "brd"); |
| 503 | PRTFL(DNAT, "dst-nat"); |
| 504 | PRTFL(SNAT, "src-nat"); |
| 505 | PRTFL(MASQ, "masq"); |
| 506 | PRTFL(DIRECTDST, "dst-direct"); |
| 507 | PRTFL(DIRECTSRC, "src-direct"); |
| 508 | PRTFL(REDIRECTED, "redirected"); |
| 509 | PRTFL(DOREDIRECT, "redirect"); |
| 510 | PRTFL(FAST, "fastroute"); |
| 511 | PRTFL(NOTIFY, "notify"); |
| 512 | PRTFL(TPROXY, "proxy"); |
Andreas Henriksson | 63a0f20 | 2010-02-09 10:58:51 -0800 | [diff] [blame] | 513 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 514 | if (flags) |
| 515 | fprintf(fp, "%s%x> ", first ? "<" : "", flags); |
| 516 | if (tb[RTA_CACHEINFO]) { |
| 517 | struct rta_cacheinfo *ci = RTA_DATA(tb[RTA_CACHEINFO]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 518 | if (!hz) |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 519 | hz = get_user_hz(); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 520 | if (ci->rta_expires != 0) |
| 521 | fprintf(fp, " expires %dsec", ci->rta_expires/hz); |
| 522 | if (ci->rta_error != 0) |
| 523 | fprintf(fp, " error %d", ci->rta_error); |
| 524 | if (show_stats) { |
| 525 | if (ci->rta_clntref) |
| 526 | fprintf(fp, " users %d", ci->rta_clntref); |
| 527 | if (ci->rta_used != 0) |
| 528 | fprintf(fp, " used %d", ci->rta_used); |
| 529 | if (ci->rta_lastuse != 0) |
| 530 | fprintf(fp, " age %dsec", ci->rta_lastuse/hz); |
| 531 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 532 | if (ci->rta_id) |
| 533 | fprintf(fp, " ipid 0x%04x", ci->rta_id); |
| 534 | if (ci->rta_ts || ci->rta_tsage) |
Stephen Hemminger | d5b7420 | 2011-02-25 20:00:54 -0800 | [diff] [blame] | 535 | fprintf(fp, " ts 0x%x tsage %dsec", |
| 536 | ci->rta_ts, ci->rta_tsage); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 537 | } |
| 538 | } else if (r->rtm_family == AF_INET6) { |
| 539 | struct rta_cacheinfo *ci = NULL; |
| 540 | if (tb[RTA_CACHEINFO]) |
| 541 | ci = RTA_DATA(tb[RTA_CACHEINFO]); |
| 542 | if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 543 | if (!hz) |
net[shemminger]!shemminger | 5e8bc63 | 2005-03-14 18:44:54 +0000 | [diff] [blame] | 544 | hz = get_user_hz(); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 545 | if (r->rtm_flags & RTM_F_CLONED) |
| 546 | fprintf(fp, "%s cache ", _SL_); |
| 547 | if (ci->rta_expires) |
| 548 | fprintf(fp, " expires %dsec", ci->rta_expires/hz); |
| 549 | if (ci->rta_error != 0) |
| 550 | fprintf(fp, " error %d", ci->rta_error); |
| 551 | if (show_stats) { |
| 552 | if (ci->rta_clntref) |
| 553 | fprintf(fp, " users %d", ci->rta_clntref); |
| 554 | if (ci->rta_used != 0) |
| 555 | fprintf(fp, " used %d", ci->rta_used); |
| 556 | if (ci->rta_lastuse != 0) |
| 557 | fprintf(fp, " age %dsec", ci->rta_lastuse/hz); |
| 558 | } |
| 559 | } else if (ci) { |
| 560 | if (ci->rta_error != 0) |
| 561 | fprintf(fp, " error %d", ci->rta_error); |
| 562 | } |
| 563 | } |
| 564 | if (tb[RTA_METRICS]) { |
| 565 | int i; |
| 566 | unsigned mxlock = 0; |
| 567 | struct rtattr *mxrta[RTAX_MAX+1]; |
| 568 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 569 | parse_rtattr(mxrta, RTAX_MAX, RTA_DATA(tb[RTA_METRICS]), |
| 570 | RTA_PAYLOAD(tb[RTA_METRICS])); |
| 571 | if (mxrta[RTAX_LOCK]) |
| 572 | mxlock = *(unsigned*)RTA_DATA(mxrta[RTAX_LOCK]); |
| 573 | |
Stephen Hemminger | f38c733 | 2006-08-04 10:49:51 -0700 | [diff] [blame] | 574 | for (i=2; i<= RTAX_MAX; i++) { |
Zhang Shengju | eb85526 | 2016-01-21 02:23:49 +0000 | [diff] [blame] | 575 | __u32 val = 0U; |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame] | 576 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 577 | if (mxrta[i] == NULL) |
| 578 | continue; |
Stephen Hemminger | 6a79240 | 2006-10-26 08:47:00 -0700 | [diff] [blame] | 579 | |
Daniel Borkmann | 6ef87f9 | 2015-01-09 00:13:06 +0100 | [diff] [blame] | 580 | if (i != RTAX_CC_ALGO) |
| 581 | val = rta_getattr_u32(mxrta[i]); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 582 | |
Phil Sutter | 0f75433 | 2015-12-02 13:50:22 +0100 | [diff] [blame] | 583 | if (i == RTAX_HOPLIMIT && (int)val == -1) |
| 584 | continue; |
| 585 | |
| 586 | if (i < sizeof(mx_names)/sizeof(char*) && mx_names[i]) |
| 587 | fprintf(fp, " %s", mx_names[i]); |
| 588 | else |
| 589 | fprintf(fp, " metric %d", i); |
| 590 | |
Phil Sutter | ed6b865 | 2015-12-12 14:09:48 +0100 | [diff] [blame] | 591 | if (mxlock & (1<<i)) |
| 592 | fprintf(fp, " lock"); |
| 593 | |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame] | 594 | switch (i) { |
Florian Westphal | 29d1f73 | 2014-11-06 22:15:32 +0100 | [diff] [blame] | 595 | case RTAX_FEATURES: |
| 596 | print_rtax_features(fp, val); |
| 597 | break; |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame] | 598 | default: |
| 599 | fprintf(fp, " %u", val); |
| 600 | break; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 601 | |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame] | 602 | case RTAX_RTT: |
| 603 | case RTAX_RTTVAR: |
| 604 | case RTAX_RTO_MIN: |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 605 | if (i == RTAX_RTT) |
| 606 | val /= 8; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 607 | else if (i == RTAX_RTTVAR) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 608 | val /= 4; |
Stephen Hemminger | ced61d7 | 2009-03-23 10:49:21 -0700 | [diff] [blame] | 609 | |
Gerrit Renker | 9b2cdc0 | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 610 | if (val >= 1000) |
| 611 | fprintf(fp, " %gs", val/1e3); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 612 | else |
Gerrit Renker | 9b2cdc0 | 2011-02-25 12:51:48 -0800 | [diff] [blame] | 613 | fprintf(fp, " %ums", val); |
Daniel Borkmann | 6ef87f9 | 2015-01-09 00:13:06 +0100 | [diff] [blame] | 614 | break; |
| 615 | case RTAX_CC_ALGO: |
| 616 | fprintf(fp, " %s", rta_getattr_str(mxrta[i])); |
| 617 | break; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 618 | } |
| 619 | } |
| 620 | } |
| 621 | if (tb[RTA_IIF] && filter.iifmask != -1) { |
| 622 | fprintf(fp, " iif %s", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_IIF]))); |
| 623 | } |
| 624 | if (tb[RTA_MULTIPATH]) { |
| 625 | struct rtnexthop *nh = RTA_DATA(tb[RTA_MULTIPATH]); |
| 626 | int first = 0; |
| 627 | |
| 628 | len = RTA_PAYLOAD(tb[RTA_MULTIPATH]); |
| 629 | |
| 630 | for (;;) { |
| 631 | if (len < sizeof(*nh)) |
| 632 | break; |
| 633 | if (nh->rtnh_len > len) |
| 634 | break; |
| 635 | if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) { |
| 636 | if (first) |
| 637 | fprintf(fp, " Oifs:"); |
| 638 | else |
| 639 | fprintf(fp, " "); |
| 640 | } else |
| 641 | fprintf(fp, "%s\tnexthop", _SL_); |
| 642 | if (nh->rtnh_len > sizeof(*nh)) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 643 | parse_rtattr(tb, RTA_MAX, RTNH_DATA(nh), nh->rtnh_len - sizeof(*nh)); |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 644 | |
| 645 | if (tb[RTA_ENCAP]) |
| 646 | lwt_print_encap(fp, |
| 647 | tb[RTA_ENCAP_TYPE], |
| 648 | tb[RTA_ENCAP]); |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 649 | if (tb[RTA_NEWDST]) { |
| 650 | fprintf(fp, " as to %s ", |
| 651 | format_host(r->rtm_family, |
| 652 | RTA_PAYLOAD(tb[RTA_NEWDST]), |
| 653 | RTA_DATA(tb[RTA_NEWDST]), |
| 654 | abuf, sizeof(abuf))); |
| 655 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 656 | if (tb[RTA_GATEWAY]) { |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 657 | fprintf(fp, " via %s ", |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 658 | format_host(r->rtm_family, |
| 659 | RTA_PAYLOAD(tb[RTA_GATEWAY]), |
| 660 | RTA_DATA(tb[RTA_GATEWAY]), |
| 661 | abuf, sizeof(abuf))); |
| 662 | } |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 663 | if (tb[RTA_VIA]) { |
| 664 | size_t len = RTA_PAYLOAD(tb[RTA_VIA]) - 2; |
| 665 | struct rtvia *via = RTA_DATA(tb[RTA_VIA]); |
| 666 | fprintf(fp, "via %s %s ", |
| 667 | family_name(via->rtvia_family), |
| 668 | format_host(via->rtvia_family, len, via->rtvia_addr, |
| 669 | abuf, sizeof(abuf))); |
| 670 | } |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 671 | if (tb[RTA_FLOW]) { |
Stephen Hemminger | ff24746 | 2012-04-10 08:47:55 -0700 | [diff] [blame] | 672 | __u32 to = rta_getattr_u32(tb[RTA_FLOW]); |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 673 | __u32 from = to>>16; |
| 674 | to &= 0xFFFF; |
| 675 | fprintf(fp, " realm%s ", from ? "s" : ""); |
| 676 | if (from) { |
| 677 | fprintf(fp, "%s/", |
| 678 | rtnl_rtrealm_n2a(from, b1, sizeof(b1))); |
| 679 | } |
| 680 | fprintf(fp, "%s", |
| 681 | rtnl_rtrealm_n2a(to, b1, sizeof(b1))); |
| 682 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 683 | } |
| 684 | if (r->rtm_flags&RTM_F_CLONED && r->rtm_type == RTN_MULTICAST) { |
| 685 | fprintf(fp, " %s", ll_index_to_name(nh->rtnh_ifindex)); |
| 686 | if (nh->rtnh_hops != 1) |
| 687 | fprintf(fp, "(ttl>%d)", nh->rtnh_hops); |
| 688 | } else { |
| 689 | fprintf(fp, " dev %s", ll_index_to_name(nh->rtnh_ifindex)); |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 690 | if (r->rtm_family != AF_MPLS) |
| 691 | fprintf(fp, " weight %d", |
| 692 | nh->rtnh_hops+1); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 693 | } |
| 694 | if (nh->rtnh_flags & RTNH_F_DEAD) |
| 695 | fprintf(fp, " dead"); |
| 696 | if (nh->rtnh_flags & RTNH_F_ONLINK) |
| 697 | fprintf(fp, " onlink"); |
| 698 | if (nh->rtnh_flags & RTNH_F_PERVASIVE) |
| 699 | fprintf(fp, " pervasive"); |
Andy Gospodarek | 528c255 | 2015-06-23 13:45:38 -0400 | [diff] [blame] | 700 | if (nh->rtnh_flags & RTNH_F_LINKDOWN) |
| 701 | fprintf(fp, " linkdown"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 702 | len -= NLMSG_ALIGN(nh->rtnh_len); |
| 703 | nh = RTNH_NEXT(nh); |
| 704 | } |
| 705 | } |
Lubomir Rintel | 194e9b8 | 2015-03-16 16:01:47 +0100 | [diff] [blame] | 706 | if (tb[RTA_PREF]) { |
| 707 | unsigned int pref = rta_getattr_u8(tb[RTA_PREF]); |
| 708 | fprintf(fp, " pref "); |
| 709 | |
| 710 | switch (pref) { |
| 711 | case ICMPV6_ROUTER_PREF_LOW: |
| 712 | fprintf(fp, "low"); |
| 713 | break; |
| 714 | case ICMPV6_ROUTER_PREF_MEDIUM: |
| 715 | fprintf(fp, "medium"); |
| 716 | break; |
| 717 | case ICMPV6_ROUTER_PREF_HIGH: |
| 718 | fprintf(fp, "high"); |
| 719 | break; |
| 720 | default: |
| 721 | fprintf(fp, "%u", pref); |
| 722 | } |
| 723 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 724 | fprintf(fp, "\n"); |
| 725 | fflush(fp); |
| 726 | return 0; |
| 727 | } |
| 728 | |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 729 | static int parse_one_nh(struct nlmsghdr *n, struct rtmsg *r, |
| 730 | struct rtattr *rta, struct rtnexthop *rtnh, |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 731 | int *argcp, char ***argvp) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 732 | { |
| 733 | int argc = *argcp; |
| 734 | char **argv = *argvp; |
| 735 | |
| 736 | while (++argv, --argc > 0) { |
| 737 | if (strcmp(*argv, "via") == 0) { |
Vincent Bernat | 4d6c379 | 2012-10-23 14:42:55 +0200 | [diff] [blame] | 738 | inet_prefix addr; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 739 | int family; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 740 | NEXT_ARG(); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 741 | family = read_family(*argv); |
| 742 | if (family == AF_UNSPEC) |
| 743 | family = r->rtm_family; |
| 744 | else |
| 745 | NEXT_ARG(); |
| 746 | get_addr(&addr, *argv, family); |
Vincent Bernat | 4d6c379 | 2012-10-23 14:42:55 +0200 | [diff] [blame] | 747 | if (r->rtm_family == AF_UNSPEC) |
| 748 | r->rtm_family = addr.family; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 749 | if (addr.family == r->rtm_family) { |
| 750 | rta_addattr_l(rta, 4096, RTA_GATEWAY, &addr.data, addr.bytelen); |
| 751 | rtnh->rtnh_len += sizeof(struct rtattr) + addr.bytelen; |
| 752 | } else { |
| 753 | rta_addattr_l(rta, 4096, RTA_VIA, &addr.family, addr.bytelen+2); |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 754 | rtnh->rtnh_len += RTA_SPACE(addr.bytelen+2); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 755 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 756 | } else if (strcmp(*argv, "dev") == 0) { |
| 757 | NEXT_ARG(); |
| 758 | if ((rtnh->rtnh_ifindex = ll_name_to_index(*argv)) == 0) { |
| 759 | fprintf(stderr, "Cannot find device \"%s\"\n", *argv); |
| 760 | exit(1); |
| 761 | } |
| 762 | } else if (strcmp(*argv, "weight") == 0) { |
| 763 | unsigned w; |
| 764 | NEXT_ARG(); |
| 765 | if (get_unsigned(&w, *argv, 0) || w == 0 || w > 256) |
| 766 | invarg("\"weight\" is invalid\n", *argv); |
| 767 | rtnh->rtnh_hops = w - 1; |
| 768 | } else if (strcmp(*argv, "onlink") == 0) { |
| 769 | rtnh->rtnh_flags |= RTNH_F_ONLINK; |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 770 | } else if (matches(*argv, "realms") == 0) { |
| 771 | __u32 realm; |
| 772 | NEXT_ARG(); |
Daniel Borkmann | d583e88 | 2015-10-08 12:22:39 +0200 | [diff] [blame] | 773 | if (get_rt_realms_or_raw(&realm, *argv)) |
Patrick McHardy | f4f6d64 | 2006-07-25 05:58:36 +0200 | [diff] [blame] | 774 | invarg("\"realm\" value is invalid\n", *argv); |
| 775 | rta_addattr32(rta, 4096, RTA_FLOW, realm); |
| 776 | rtnh->rtnh_len += sizeof(struct rtattr) + 4; |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 777 | } else if (strcmp(*argv, "encap") == 0) { |
| 778 | int len = rta->rta_len; |
| 779 | |
| 780 | lwt_parse_encap(rta, 4096, &argc, &argv); |
| 781 | rtnh->rtnh_len += rta->rta_len - len; |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 782 | } else if (strcmp(*argv, "as") == 0) { |
| 783 | inet_prefix addr; |
| 784 | |
| 785 | NEXT_ARG(); |
| 786 | if (strcmp(*argv, "to") == 0) |
| 787 | NEXT_ARG(); |
| 788 | get_addr(&addr, *argv, r->rtm_family); |
| 789 | rta_addattr_l(rta, 4096, RTA_NEWDST, &addr.data, |
| 790 | addr.bytelen); |
| 791 | rtnh->rtnh_len += sizeof(struct rtattr) + addr.bytelen; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 792 | } else |
| 793 | break; |
| 794 | } |
| 795 | *argcp = argc; |
| 796 | *argvp = argv; |
| 797 | return 0; |
| 798 | } |
| 799 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 800 | static int parse_nexthops(struct nlmsghdr *n, struct rtmsg *r, |
| 801 | int argc, char **argv) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 802 | { |
| 803 | char buf[1024]; |
| 804 | struct rtattr *rta = (void*)buf; |
| 805 | struct rtnexthop *rtnh; |
| 806 | |
| 807 | rta->rta_type = RTA_MULTIPATH; |
| 808 | rta->rta_len = RTA_LENGTH(0); |
| 809 | rtnh = RTA_DATA(rta); |
| 810 | |
| 811 | while (argc > 0) { |
| 812 | if (strcmp(*argv, "nexthop") != 0) { |
| 813 | fprintf(stderr, "Error: \"nexthop\" or end of line is expected instead of \"%s\"\n", *argv); |
| 814 | exit(-1); |
| 815 | } |
| 816 | if (argc <= 1) { |
| 817 | fprintf(stderr, "Error: unexpected end of line after \"nexthop\"\n"); |
| 818 | exit(-1); |
| 819 | } |
| 820 | memset(rtnh, 0, sizeof(*rtnh)); |
| 821 | rtnh->rtnh_len = sizeof(*rtnh); |
| 822 | rta->rta_len += rtnh->rtnh_len; |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 823 | parse_one_nh(n, r, rta, rtnh, &argc, &argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 824 | rtnh = RTNH_NEXT(rtnh); |
| 825 | } |
| 826 | |
| 827 | if (rta->rta_len > RTA_LENGTH(0)) |
| 828 | addattr_l(n, 1024, RTA_MULTIPATH, RTA_DATA(rta), RTA_PAYLOAD(rta)); |
| 829 | return 0; |
| 830 | } |
| 831 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 832 | static int iproute_modify(int cmd, unsigned flags, int argc, char **argv) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 833 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 834 | struct { |
Stephen Hemminger | 4806867 | 2014-02-17 10:56:31 -0800 | [diff] [blame] | 835 | struct nlmsghdr n; |
| 836 | struct rtmsg r; |
| 837 | char buf[1024]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 838 | } req; |
| 839 | char mxbuf[256]; |
| 840 | struct rtattr * mxrta = (void*)mxbuf; |
| 841 | unsigned mxlock = 0; |
| 842 | char *d = NULL; |
| 843 | int gw_ok = 0; |
| 844 | int dst_ok = 0; |
| 845 | int nhs_ok = 0; |
| 846 | int scope_ok = 0; |
| 847 | int table_ok = 0; |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 848 | int raw = 0; |
Roopa Prabhu | f638e9f | 2015-06-25 23:54:27 -0400 | [diff] [blame] | 849 | int type_ok = 0; |
Hangbin Liu | 68eede2 | 2015-12-21 16:29:36 +0800 | [diff] [blame] | 850 | static int hz; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 851 | |
| 852 | memset(&req, 0, sizeof(req)); |
| 853 | |
| 854 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)); |
| 855 | req.n.nlmsg_flags = NLM_F_REQUEST|flags; |
| 856 | req.n.nlmsg_type = cmd; |
| 857 | req.r.rtm_family = preferred_family; |
| 858 | req.r.rtm_table = RT_TABLE_MAIN; |
| 859 | req.r.rtm_scope = RT_SCOPE_NOWHERE; |
| 860 | |
| 861 | if (cmd != RTM_DELROUTE) { |
| 862 | req.r.rtm_protocol = RTPROT_BOOT; |
| 863 | req.r.rtm_scope = RT_SCOPE_UNIVERSE; |
| 864 | req.r.rtm_type = RTN_UNICAST; |
| 865 | } |
| 866 | |
| 867 | mxrta->rta_type = RTA_METRICS; |
| 868 | mxrta->rta_len = RTA_LENGTH(0); |
| 869 | |
| 870 | while (argc > 0) { |
| 871 | if (strcmp(*argv, "src") == 0) { |
| 872 | inet_prefix addr; |
| 873 | NEXT_ARG(); |
| 874 | get_addr(&addr, *argv, req.r.rtm_family); |
| 875 | if (req.r.rtm_family == AF_UNSPEC) |
| 876 | req.r.rtm_family = addr.family; |
| 877 | addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen); |
Eric W. Biederman | 6f7a9f4 | 2015-03-15 14:53:11 -0500 | [diff] [blame] | 878 | } else if (strcmp(*argv, "as") == 0) { |
| 879 | inet_prefix addr; |
| 880 | NEXT_ARG(); |
| 881 | if (strcmp(*argv, "to") == 0) { |
| 882 | NEXT_ARG(); |
| 883 | } |
| 884 | get_addr(&addr, *argv, req.r.rtm_family); |
| 885 | if (req.r.rtm_family == AF_UNSPEC) |
| 886 | req.r.rtm_family = addr.family; |
| 887 | addattr_l(&req.n, sizeof(req), RTA_NEWDST, &addr.data, addr.bytelen); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 888 | } else if (strcmp(*argv, "via") == 0) { |
| 889 | inet_prefix addr; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 890 | int family; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 891 | gw_ok = 1; |
| 892 | NEXT_ARG(); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 893 | family = read_family(*argv); |
| 894 | if (family == AF_UNSPEC) |
| 895 | family = req.r.rtm_family; |
| 896 | else |
| 897 | NEXT_ARG(); |
| 898 | get_addr(&addr, *argv, family); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 899 | if (req.r.rtm_family == AF_UNSPEC) |
| 900 | req.r.rtm_family = addr.family; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 901 | if (addr.family == req.r.rtm_family) |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 902 | addattr_l(&req.n, sizeof(req), RTA_GATEWAY, |
| 903 | &addr.data, addr.bytelen); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 904 | else |
Roopa Prabhu | ecc509f | 2016-02-07 16:28:16 -0800 | [diff] [blame^] | 905 | addattr_l(&req.n, sizeof(req), RTA_VIA, |
| 906 | &addr.family, addr.bytelen+2); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 907 | } else if (strcmp(*argv, "from") == 0) { |
| 908 | inet_prefix addr; |
| 909 | NEXT_ARG(); |
| 910 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 911 | if (req.r.rtm_family == AF_UNSPEC) |
| 912 | req.r.rtm_family = addr.family; |
| 913 | if (addr.bytelen) |
| 914 | addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen); |
| 915 | req.r.rtm_src_len = addr.bitlen; |
| 916 | } else if (strcmp(*argv, "tos") == 0 || |
| 917 | matches(*argv, "dsfield") == 0) { |
| 918 | __u32 tos; |
| 919 | NEXT_ARG(); |
| 920 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 921 | invarg("\"tos\" value is invalid\n", *argv); |
| 922 | req.r.rtm_tos = tos; |
Hangbin Liu | 68eede2 | 2015-12-21 16:29:36 +0800 | [diff] [blame] | 923 | } else if (strcmp(*argv, "expires") == 0 ) { |
| 924 | __u32 expires; |
| 925 | NEXT_ARG(); |
| 926 | if (get_u32(&expires, *argv, 0)) |
| 927 | invarg("\"expires\" value is invalid\n", *argv); |
| 928 | if (!hz) |
| 929 | hz = get_user_hz(); |
| 930 | addattr32(&req.n, sizeof(req), RTA_EXPIRES, expires*hz); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 931 | } else if (matches(*argv, "metric") == 0 || |
| 932 | matches(*argv, "priority") == 0 || |
Lubomir Rintel | 194e9b8 | 2015-03-16 16:01:47 +0100 | [diff] [blame] | 933 | strcmp(*argv, "preference") == 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 934 | __u32 metric; |
| 935 | NEXT_ARG(); |
| 936 | if (get_u32(&metric, *argv, 0)) |
| 937 | invarg("\"metric\" value is invalid\n", *argv); |
| 938 | addattr32(&req.n, sizeof(req), RTA_PRIORITY, metric); |
| 939 | } else if (strcmp(*argv, "scope") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 940 | __u32 scope = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 941 | NEXT_ARG(); |
| 942 | if (rtnl_rtscope_a2n(&scope, *argv)) |
| 943 | invarg("invalid \"scope\" value\n", *argv); |
| 944 | req.r.rtm_scope = scope; |
| 945 | scope_ok = 1; |
| 946 | } else if (strcmp(*argv, "mtu") == 0) { |
| 947 | unsigned mtu; |
| 948 | NEXT_ARG(); |
| 949 | if (strcmp(*argv, "lock") == 0) { |
| 950 | mxlock |= (1<<RTAX_MTU); |
| 951 | NEXT_ARG(); |
| 952 | } |
| 953 | if (get_unsigned(&mtu, *argv, 0)) |
| 954 | invarg("\"mtu\" value is invalid\n", *argv); |
| 955 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu); |
Gilad Ben-Yossef | 71e5815 | 2009-10-06 15:40:34 +0200 | [diff] [blame] | 956 | } else if (strcmp(*argv, "hoplimit") == 0) { |
| 957 | unsigned hoplimit; |
| 958 | NEXT_ARG(); |
| 959 | if (strcmp(*argv, "lock") == 0) { |
| 960 | mxlock |= (1<<RTAX_HOPLIMIT); |
| 961 | NEXT_ARG(); |
| 962 | } |
Phil Sutter | ea6cbab | 2015-11-24 15:45:31 +0100 | [diff] [blame] | 963 | if (get_unsigned(&hoplimit, *argv, 0) || hoplimit > 255) |
Gilad Ben-Yossef | 71e5815 | 2009-10-06 15:40:34 +0200 | [diff] [blame] | 964 | invarg("\"hoplimit\" value is invalid\n", *argv); |
| 965 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_HOPLIMIT, hoplimit); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 966 | } else if (strcmp(*argv, "advmss") == 0) { |
| 967 | unsigned mss; |
| 968 | NEXT_ARG(); |
| 969 | if (strcmp(*argv, "lock") == 0) { |
| 970 | mxlock |= (1<<RTAX_ADVMSS); |
| 971 | NEXT_ARG(); |
| 972 | } |
| 973 | if (get_unsigned(&mss, *argv, 0)) |
| 974 | invarg("\"mss\" value is invalid\n", *argv); |
| 975 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 976 | } else if (matches(*argv, "reordering") == 0) { |
| 977 | unsigned reord; |
| 978 | NEXT_ARG(); |
| 979 | if (strcmp(*argv, "lock") == 0) { |
| 980 | mxlock |= (1<<RTAX_REORDERING); |
| 981 | NEXT_ARG(); |
| 982 | } |
| 983 | if (get_unsigned(&reord, *argv, 0)) |
| 984 | invarg("\"reordering\" value is invalid\n", *argv); |
| 985 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_REORDERING, reord); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 986 | } else if (strcmp(*argv, "rtt") == 0) { |
| 987 | unsigned rtt; |
| 988 | NEXT_ARG(); |
| 989 | if (strcmp(*argv, "lock") == 0) { |
| 990 | mxlock |= (1<<RTAX_RTT); |
| 991 | NEXT_ARG(); |
| 992 | } |
Gerrit Renker | 81d03dc | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 993 | if (get_time_rtt(&rtt, *argv, &raw)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 994 | invarg("\"rtt\" value is invalid\n", *argv); |
Stephen Hemminger | 0612519 | 2014-02-17 10:55:31 -0800 | [diff] [blame] | 995 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTT, |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 996 | (raw) ? rtt : rtt * 8); |
| 997 | } else if (strcmp(*argv, "rto_min") == 0) { |
| 998 | unsigned rto_min; |
| 999 | NEXT_ARG(); |
| 1000 | mxlock |= (1<<RTAX_RTO_MIN); |
Gerrit Renker | 81d03dc | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 1001 | if (get_time_rtt(&rto_min, *argv, &raw)) |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 1002 | invarg("\"rto_min\" value is invalid\n", |
| 1003 | *argv); |
| 1004 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTO_MIN, |
| 1005 | rto_min); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1006 | } else if (matches(*argv, "window") == 0) { |
| 1007 | unsigned win; |
| 1008 | NEXT_ARG(); |
| 1009 | if (strcmp(*argv, "lock") == 0) { |
| 1010 | mxlock |= (1<<RTAX_WINDOW); |
| 1011 | NEXT_ARG(); |
| 1012 | } |
| 1013 | if (get_unsigned(&win, *argv, 0)) |
| 1014 | invarg("\"window\" value is invalid\n", *argv); |
| 1015 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_WINDOW, win); |
| 1016 | } else if (matches(*argv, "cwnd") == 0) { |
| 1017 | unsigned win; |
| 1018 | NEXT_ARG(); |
| 1019 | if (strcmp(*argv, "lock") == 0) { |
| 1020 | mxlock |= (1<<RTAX_CWND); |
| 1021 | NEXT_ARG(); |
| 1022 | } |
| 1023 | if (get_unsigned(&win, *argv, 0)) |
| 1024 | invarg("\"cwnd\" value is invalid\n", *argv); |
| 1025 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_CWND, win); |
Vince Worthington | a1f1143 | 2006-07-17 14:10:09 -0400 | [diff] [blame] | 1026 | } else if (matches(*argv, "initcwnd") == 0) { |
| 1027 | unsigned win; |
| 1028 | NEXT_ARG(); |
| 1029 | if (strcmp(*argv, "lock") == 0) { |
| 1030 | mxlock |= (1<<RTAX_INITCWND); |
| 1031 | NEXT_ARG(); |
| 1032 | } |
| 1033 | if (get_unsigned(&win, *argv, 0)) |
| 1034 | invarg("\"initcwnd\" value is invalid\n", *argv); |
| 1035 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITCWND, win); |
laurent chavey | f5fd800 | 2009-12-15 13:05:15 +0000 | [diff] [blame] | 1036 | } else if (matches(*argv, "initrwnd") == 0) { |
| 1037 | unsigned win; |
| 1038 | NEXT_ARG(); |
| 1039 | if (strcmp(*argv, "lock") == 0) { |
| 1040 | mxlock |= (1<<RTAX_INITRWND); |
| 1041 | NEXT_ARG(); |
| 1042 | } |
| 1043 | if (get_unsigned(&win, *argv, 0)) |
| 1044 | invarg("\"initrwnd\" value is invalid\n", *argv); |
| 1045 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_INITRWND, win); |
Florian Westphal | 29d1f73 | 2014-11-06 22:15:32 +0100 | [diff] [blame] | 1046 | } else if (matches(*argv, "features") == 0) { |
| 1047 | unsigned int features = 0; |
| 1048 | |
| 1049 | while (argc > 0) { |
| 1050 | NEXT_ARG(); |
| 1051 | |
| 1052 | if (strcmp(*argv, "ecn") == 0) |
| 1053 | features |= RTAX_FEATURE_ECN; |
| 1054 | else |
| 1055 | invarg("\"features\" value not valid\n", *argv); |
| 1056 | break; |
| 1057 | } |
| 1058 | |
| 1059 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_FEATURES, features); |
Cong Wang | b37f2c8 | 2013-06-15 09:39:19 +0800 | [diff] [blame] | 1060 | } else if (matches(*argv, "quickack") == 0) { |
| 1061 | unsigned quickack; |
| 1062 | NEXT_ARG(); |
| 1063 | if (get_unsigned(&quickack, *argv, 0)) |
| 1064 | invarg("\"quickack\" value is invalid\n", *argv); |
| 1065 | if (quickack != 1 && quickack != 0) |
| 1066 | invarg("\"quickack\" value should be 0 or 1\n", *argv); |
| 1067 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_QUICKACK, quickack); |
Daniel Borkmann | 6ef87f9 | 2015-01-09 00:13:06 +0100 | [diff] [blame] | 1068 | } else if (matches(*argv, "congctl") == 0) { |
| 1069 | NEXT_ARG(); |
| 1070 | if (strcmp(*argv, "lock") == 0) { |
| 1071 | mxlock |= 1 << RTAX_CC_ALGO; |
| 1072 | NEXT_ARG(); |
| 1073 | } |
| 1074 | rta_addattr_l(mxrta, sizeof(mxbuf), RTAX_CC_ALGO, *argv, |
| 1075 | strlen(*argv)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1076 | } else if (matches(*argv, "rttvar") == 0) { |
| 1077 | unsigned win; |
| 1078 | NEXT_ARG(); |
| 1079 | if (strcmp(*argv, "lock") == 0) { |
| 1080 | mxlock |= (1<<RTAX_RTTVAR); |
| 1081 | NEXT_ARG(); |
| 1082 | } |
Gerrit Renker | 81d03dc | 2011-02-25 12:54:37 -0800 | [diff] [blame] | 1083 | if (get_time_rtt(&win, *argv, &raw)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1084 | invarg("\"rttvar\" value is invalid\n", *argv); |
Rick Jones | 54e0b2e | 2007-10-11 13:04:11 -0700 | [diff] [blame] | 1085 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_RTTVAR, |
| 1086 | (raw) ? win : win * 4); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1087 | } else if (matches(*argv, "ssthresh") == 0) { |
| 1088 | unsigned win; |
| 1089 | NEXT_ARG(); |
| 1090 | if (strcmp(*argv, "lock") == 0) { |
| 1091 | mxlock |= (1<<RTAX_SSTHRESH); |
| 1092 | NEXT_ARG(); |
| 1093 | } |
| 1094 | if (get_unsigned(&win, *argv, 0)) |
| 1095 | invarg("\"ssthresh\" value is invalid\n", *argv); |
| 1096 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_SSTHRESH, win); |
| 1097 | } else if (matches(*argv, "realms") == 0) { |
| 1098 | __u32 realm; |
| 1099 | NEXT_ARG(); |
Daniel Borkmann | d583e88 | 2015-10-08 12:22:39 +0200 | [diff] [blame] | 1100 | if (get_rt_realms_or_raw(&realm, *argv)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1101 | invarg("\"realm\" value is invalid\n", *argv); |
| 1102 | addattr32(&req.n, sizeof(req), RTA_FLOW, realm); |
| 1103 | } else if (strcmp(*argv, "onlink") == 0) { |
| 1104 | req.r.rtm_flags |= RTNH_F_ONLINK; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1105 | } else if (strcmp(*argv, "nexthop") == 0) { |
| 1106 | nhs_ok = 1; |
| 1107 | break; |
| 1108 | } else if (matches(*argv, "protocol") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1109 | __u32 prot; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1110 | NEXT_ARG(); |
| 1111 | if (rtnl_rtprot_a2n(&prot, *argv)) |
| 1112 | invarg("\"protocol\" value is invalid\n", *argv); |
| 1113 | req.r.rtm_protocol = prot; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1114 | } else if (matches(*argv, "table") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1115 | __u32 tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1116 | NEXT_ARG(); |
| 1117 | if (rtnl_rttable_a2n(&tid, *argv)) |
| 1118 | invarg("\"table\" value is invalid\n", *argv); |
Patrick McHardy | 34e9564 | 2006-08-11 00:14:51 +0200 | [diff] [blame] | 1119 | if (tid < 256) |
| 1120 | req.r.rtm_table = tid; |
| 1121 | else { |
| 1122 | req.r.rtm_table = RT_TABLE_UNSPEC; |
| 1123 | addattr32(&req.n, sizeof(req), RTA_TABLE, tid); |
| 1124 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1125 | table_ok = 1; |
| 1126 | } else if (strcmp(*argv, "dev") == 0 || |
| 1127 | strcmp(*argv, "oif") == 0) { |
| 1128 | NEXT_ARG(); |
| 1129 | d = *argv; |
Lubomir Rintel | 194e9b8 | 2015-03-16 16:01:47 +0100 | [diff] [blame] | 1130 | } else if (matches(*argv, "pref") == 0) { |
| 1131 | __u8 pref; |
| 1132 | NEXT_ARG(); |
| 1133 | if (strcmp(*argv, "low") == 0) |
| 1134 | pref = ICMPV6_ROUTER_PREF_LOW; |
| 1135 | else if (strcmp(*argv, "medium") == 0) |
| 1136 | pref = ICMPV6_ROUTER_PREF_MEDIUM; |
| 1137 | else if (strcmp(*argv, "high") == 0) |
| 1138 | pref = ICMPV6_ROUTER_PREF_HIGH; |
| 1139 | else if (get_u8(&pref, *argv, 0)) |
| 1140 | invarg("\"pref\" value is invalid\n", *argv); |
| 1141 | addattr8(&req.n, sizeof(req), RTA_PREF, pref); |
Roopa Prabhu | 1e52930 | 2015-10-15 13:13:39 +0200 | [diff] [blame] | 1142 | } else if (strcmp(*argv, "encap") == 0) { |
| 1143 | char buf[1024]; |
| 1144 | struct rtattr *rta = (void*)buf; |
| 1145 | |
| 1146 | rta->rta_type = RTA_ENCAP; |
| 1147 | rta->rta_len = RTA_LENGTH(0); |
| 1148 | |
| 1149 | lwt_parse_encap(rta, sizeof(buf), &argc, &argv); |
| 1150 | |
| 1151 | if (rta->rta_len > RTA_LENGTH(0)) |
| 1152 | addraw_l(&req.n, 1024, RTA_DATA(rta), RTA_PAYLOAD(rta)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1153 | } else { |
| 1154 | int type; |
| 1155 | inet_prefix dst; |
| 1156 | |
| 1157 | if (strcmp(*argv, "to") == 0) { |
| 1158 | NEXT_ARG(); |
| 1159 | } |
| 1160 | if ((**argv < '0' || **argv > '9') && |
| 1161 | rtnl_rtntype_a2n(&type, *argv) == 0) { |
| 1162 | NEXT_ARG(); |
| 1163 | req.r.rtm_type = type; |
Roopa Prabhu | f638e9f | 2015-06-25 23:54:27 -0400 | [diff] [blame] | 1164 | type_ok = 1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1165 | } |
| 1166 | |
| 1167 | if (matches(*argv, "help") == 0) |
| 1168 | usage(); |
| 1169 | if (dst_ok) |
| 1170 | duparg2("to", *argv); |
| 1171 | get_prefix(&dst, *argv, req.r.rtm_family); |
| 1172 | if (req.r.rtm_family == AF_UNSPEC) |
| 1173 | req.r.rtm_family = dst.family; |
| 1174 | req.r.rtm_dst_len = dst.bitlen; |
| 1175 | dst_ok = 1; |
| 1176 | if (dst.bytelen) |
| 1177 | addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen); |
| 1178 | } |
| 1179 | argc--; argv++; |
| 1180 | } |
| 1181 | |
Pavel Simerda | 922b482 | 2014-12-02 17:45:10 +0100 | [diff] [blame] | 1182 | if (!dst_ok) |
| 1183 | usage(); |
| 1184 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1185 | if (d || nhs_ok) { |
| 1186 | int idx; |
| 1187 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1188 | if (d) { |
| 1189 | if ((idx = ll_name_to_index(d)) == 0) { |
| 1190 | fprintf(stderr, "Cannot find device \"%s\"\n", d); |
| 1191 | return -1; |
| 1192 | } |
| 1193 | addattr32(&req.n, sizeof(req), RTA_OIF, idx); |
| 1194 | } |
| 1195 | } |
| 1196 | |
| 1197 | if (mxrta->rta_len > RTA_LENGTH(0)) { |
| 1198 | if (mxlock) |
| 1199 | rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock); |
| 1200 | addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta)); |
| 1201 | } |
| 1202 | |
| 1203 | if (nhs_ok) |
| 1204 | parse_nexthops(&req.n, &req.r, argc, argv); |
| 1205 | |
Roopa Prabhu | f638e9f | 2015-06-25 23:54:27 -0400 | [diff] [blame] | 1206 | if (req.r.rtm_family == AF_UNSPEC) |
| 1207 | req.r.rtm_family = AF_INET; |
| 1208 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1209 | if (!table_ok) { |
| 1210 | if (req.r.rtm_type == RTN_LOCAL || |
| 1211 | req.r.rtm_type == RTN_BROADCAST || |
| 1212 | req.r.rtm_type == RTN_NAT || |
| 1213 | req.r.rtm_type == RTN_ANYCAST) |
| 1214 | req.r.rtm_table = RT_TABLE_LOCAL; |
| 1215 | } |
| 1216 | if (!scope_ok) { |
Roopa Prabhu | f638e9f | 2015-06-25 23:54:27 -0400 | [diff] [blame] | 1217 | if (req.r.rtm_family == AF_INET6 || |
| 1218 | req.r.rtm_family == AF_MPLS) |
| 1219 | req.r.rtm_scope = RT_SCOPE_UNIVERSE; |
| 1220 | else if (req.r.rtm_type == RTN_LOCAL || |
| 1221 | req.r.rtm_type == RTN_NAT) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1222 | req.r.rtm_scope = RT_SCOPE_HOST; |
| 1223 | else if (req.r.rtm_type == RTN_BROADCAST || |
| 1224 | req.r.rtm_type == RTN_MULTICAST || |
| 1225 | req.r.rtm_type == RTN_ANYCAST) |
| 1226 | req.r.rtm_scope = RT_SCOPE_LINK; |
| 1227 | else if (req.r.rtm_type == RTN_UNICAST || |
| 1228 | req.r.rtm_type == RTN_UNSPEC) { |
| 1229 | if (cmd == RTM_DELROUTE) |
| 1230 | req.r.rtm_scope = RT_SCOPE_NOWHERE; |
| 1231 | else if (!gw_ok && !nhs_ok) |
| 1232 | req.r.rtm_scope = RT_SCOPE_LINK; |
| 1233 | } |
| 1234 | } |
| 1235 | |
Roopa Prabhu | f638e9f | 2015-06-25 23:54:27 -0400 | [diff] [blame] | 1236 | if (!type_ok && req.r.rtm_family == AF_MPLS) |
| 1237 | req.r.rtm_type = RTN_UNICAST; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1238 | |
Stephen Hemminger | c079e12 | 2015-05-27 12:26:14 -0700 | [diff] [blame] | 1239 | if (rtnl_talk(&rth, &req.n, NULL, 0) < 0) |
Stephen Hemminger | d58ba4b | 2015-05-06 09:48:06 -0700 | [diff] [blame] | 1240 | return -2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1241 | |
| 1242 | return 0; |
| 1243 | } |
| 1244 | |
| 1245 | static int rtnl_rtcache_request(struct rtnl_handle *rth, int family) |
| 1246 | { |
| 1247 | struct { |
| 1248 | struct nlmsghdr nlh; |
| 1249 | struct rtmsg rtm; |
| 1250 | } req; |
| 1251 | struct sockaddr_nl nladdr; |
| 1252 | |
| 1253 | memset(&nladdr, 0, sizeof(nladdr)); |
| 1254 | memset(&req, 0, sizeof(req)); |
| 1255 | nladdr.nl_family = AF_NETLINK; |
| 1256 | |
| 1257 | req.nlh.nlmsg_len = sizeof(req); |
| 1258 | req.nlh.nlmsg_type = RTM_GETROUTE; |
| 1259 | req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_REQUEST; |
| 1260 | req.nlh.nlmsg_pid = 0; |
| 1261 | req.nlh.nlmsg_seq = rth->dump = ++rth->seq; |
| 1262 | req.rtm.rtm_family = family; |
| 1263 | req.rtm.rtm_flags |= RTM_F_CLONED; |
| 1264 | |
| 1265 | return sendto(rth->fd, (void*)&req, sizeof(req), 0, (struct sockaddr*)&nladdr, sizeof(nladdr)); |
| 1266 | } |
| 1267 | |
| 1268 | static int iproute_flush_cache(void) |
| 1269 | { |
| 1270 | #define ROUTE_FLUSH_PATH "/proc/sys/net/ipv4/route/flush" |
| 1271 | |
| 1272 | int len; |
| 1273 | int flush_fd = open (ROUTE_FLUSH_PATH, O_WRONLY); |
| 1274 | char *buffer = "-1"; |
| 1275 | |
| 1276 | if (flush_fd < 0) { |
Denis Kirjanov | 9827fa5 | 2015-09-05 10:40:50 +0300 | [diff] [blame] | 1277 | fprintf (stderr, "Cannot open \"%s\": %s\n", |
| 1278 | ROUTE_FLUSH_PATH, strerror(errno)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1279 | return -1; |
| 1280 | } |
| 1281 | |
| 1282 | len = strlen (buffer); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1283 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1284 | if ((write (flush_fd, (void *)buffer, len)) < len) { |
| 1285 | fprintf (stderr, "Cannot flush routing cache\n"); |
Thomas Jarosch | 25352af | 2011-10-03 05:23:53 +0000 | [diff] [blame] | 1286 | close(flush_fd); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1287 | return -1; |
| 1288 | } |
| 1289 | close(flush_fd); |
| 1290 | return 0; |
| 1291 | } |
| 1292 | |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1293 | static __u32 route_dump_magic = 0x45311224; |
| 1294 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 1295 | static int save_route(const struct sockaddr_nl *who, struct nlmsghdr *n, |
| 1296 | void *arg) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1297 | { |
| 1298 | int ret; |
| 1299 | int len = n->nlmsg_len; |
| 1300 | struct rtmsg *r = NLMSG_DATA(n); |
| 1301 | struct rtattr *tb[RTA_MAX+1]; |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 1302 | int host_len; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1303 | |
Vadim Kochan | f3a2ddc | 2015-02-28 02:50:24 +0200 | [diff] [blame] | 1304 | host_len = af_bit_len(r->rtm_family); |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1305 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 1306 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); |
| 1307 | |
| 1308 | if (!filter_nlmsg(n, tb, host_len)) |
| 1309 | return 0; |
| 1310 | |
| 1311 | ret = write(STDOUT_FILENO, n, n->nlmsg_len); |
| 1312 | if ((ret > 0) && (ret != n->nlmsg_len)) { |
| 1313 | fprintf(stderr, "Short write while saving nlmsg\n"); |
| 1314 | ret = -EIO; |
| 1315 | } |
| 1316 | |
| 1317 | return ret == n->nlmsg_len ? 0 : ret; |
| 1318 | } |
| 1319 | |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1320 | static int save_route_prep(void) |
| 1321 | { |
| 1322 | int ret; |
| 1323 | |
| 1324 | if (isatty(STDOUT_FILENO)) { |
Kees van Reeuwijk | 14645ec | 2013-02-08 03:32:36 +0000 | [diff] [blame] | 1325 | fprintf(stderr, "Not sending a binary stream to stdout\n"); |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1326 | return -1; |
| 1327 | } |
| 1328 | |
| 1329 | ret = write(STDOUT_FILENO, &route_dump_magic, sizeof(route_dump_magic)); |
| 1330 | if (ret != sizeof(route_dump_magic)) { |
| 1331 | fprintf(stderr, "Can't write magic to dump file\n"); |
| 1332 | return -1; |
| 1333 | } |
| 1334 | |
| 1335 | return 0; |
| 1336 | } |
| 1337 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1338 | static int iproute_list_flush_or_save(int argc, char **argv, int action) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1339 | { |
| 1340 | int do_ipv6 = preferred_family; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1341 | char *id = NULL; |
| 1342 | char *od = NULL; |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1343 | unsigned int mark = 0; |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1344 | rtnl_filter_t filter_fn; |
| 1345 | |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1346 | if (action == IPROUTE_SAVE) { |
| 1347 | if (save_route_prep()) |
| 1348 | return -1; |
| 1349 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1350 | filter_fn = save_route; |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1351 | } else |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1352 | filter_fn = print_route; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1353 | |
vadimk | 093b764 | 2014-10-20 12:25:17 +0300 | [diff] [blame] | 1354 | iproute_reset_filter(0); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1355 | filter.tb = RT_TABLE_MAIN; |
| 1356 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1357 | if ((action == IPROUTE_FLUSH) && argc <= 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1358 | fprintf(stderr, "\"ip route flush\" requires arguments.\n"); |
| 1359 | return -1; |
| 1360 | } |
| 1361 | |
| 1362 | while (argc > 0) { |
| 1363 | if (matches(*argv, "table") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1364 | __u32 tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1365 | NEXT_ARG(); |
| 1366 | if (rtnl_rttable_a2n(&tid, *argv)) { |
| 1367 | if (strcmp(*argv, "all") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1368 | filter.tb = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1369 | } else if (strcmp(*argv, "cache") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1370 | filter.cloned = 1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1371 | } else if (strcmp(*argv, "help") == 0) { |
| 1372 | usage(); |
| 1373 | } else { |
| 1374 | invarg("table id value is invalid\n", *argv); |
| 1375 | } |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1376 | } else |
| 1377 | filter.tb = tid; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1378 | } else if (matches(*argv, "cached") == 0 || |
| 1379 | matches(*argv, "cloned") == 0) { |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1380 | filter.cloned = 1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1381 | } else if (strcmp(*argv, "tos") == 0 || |
| 1382 | matches(*argv, "dsfield") == 0) { |
| 1383 | __u32 tos; |
| 1384 | NEXT_ARG(); |
| 1385 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 1386 | invarg("TOS value is invalid\n", *argv); |
| 1387 | filter.tos = tos; |
| 1388 | filter.tosmask = -1; |
| 1389 | } else if (matches(*argv, "protocol") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1390 | __u32 prot = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1391 | NEXT_ARG(); |
| 1392 | filter.protocolmask = -1; |
| 1393 | if (rtnl_rtprot_a2n(&prot, *argv)) { |
| 1394 | if (strcmp(*argv, "all") != 0) |
| 1395 | invarg("invalid \"protocol\"\n", *argv); |
| 1396 | prot = 0; |
| 1397 | filter.protocolmask = 0; |
| 1398 | } |
| 1399 | filter.protocol = prot; |
| 1400 | } else if (matches(*argv, "scope") == 0) { |
shemminger | f332d16 | 2005-07-05 22:37:15 +0000 | [diff] [blame] | 1401 | __u32 scope = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1402 | NEXT_ARG(); |
| 1403 | filter.scopemask = -1; |
| 1404 | if (rtnl_rtscope_a2n(&scope, *argv)) { |
| 1405 | if (strcmp(*argv, "all") != 0) |
| 1406 | invarg("invalid \"scope\"\n", *argv); |
| 1407 | scope = RT_SCOPE_NOWHERE; |
| 1408 | filter.scopemask = 0; |
| 1409 | } |
| 1410 | filter.scope = scope; |
| 1411 | } else if (matches(*argv, "type") == 0) { |
| 1412 | int type; |
| 1413 | NEXT_ARG(); |
| 1414 | filter.typemask = -1; |
| 1415 | if (rtnl_rtntype_a2n(&type, *argv)) |
| 1416 | invarg("node type value is invalid\n", *argv); |
| 1417 | filter.type = type; |
| 1418 | } else if (strcmp(*argv, "dev") == 0 || |
| 1419 | strcmp(*argv, "oif") == 0) { |
| 1420 | NEXT_ARG(); |
| 1421 | od = *argv; |
| 1422 | } else if (strcmp(*argv, "iif") == 0) { |
| 1423 | NEXT_ARG(); |
| 1424 | id = *argv; |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1425 | } else if (strcmp(*argv, "mark") == 0) { |
| 1426 | NEXT_ARG(); |
| 1427 | get_unsigned(&mark, *argv, 0); |
| 1428 | filter.markmask = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1429 | } else if (strcmp(*argv, "via") == 0) { |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 1430 | int family; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1431 | NEXT_ARG(); |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 1432 | family = read_family(*argv); |
| 1433 | if (family == AF_UNSPEC) |
| 1434 | family = do_ipv6; |
| 1435 | else |
| 1436 | NEXT_ARG(); |
| 1437 | get_prefix(&filter.rvia, *argv, family); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1438 | } else if (strcmp(*argv, "src") == 0) { |
| 1439 | NEXT_ARG(); |
| 1440 | get_prefix(&filter.rprefsrc, *argv, do_ipv6); |
| 1441 | } else if (matches(*argv, "realms") == 0) { |
| 1442 | __u32 realm; |
| 1443 | NEXT_ARG(); |
Daniel Borkmann | d583e88 | 2015-10-08 12:22:39 +0200 | [diff] [blame] | 1444 | if (get_rt_realms_or_raw(&realm, *argv)) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1445 | invarg("invalid realms\n", *argv); |
| 1446 | filter.realm = realm; |
| 1447 | filter.realmmask = ~0U; |
| 1448 | if ((filter.realm&0xFFFF) == 0 && |
| 1449 | (*argv)[strlen(*argv) - 1] == '/') |
| 1450 | filter.realmmask &= ~0xFFFF; |
| 1451 | if ((filter.realm&0xFFFF0000U) == 0 && |
| 1452 | (strchr(*argv, '/') == NULL || |
| 1453 | (*argv)[0] == '/')) |
| 1454 | filter.realmmask &= ~0xFFFF0000U; |
| 1455 | } else if (matches(*argv, "from") == 0) { |
| 1456 | NEXT_ARG(); |
| 1457 | if (matches(*argv, "root") == 0) { |
| 1458 | NEXT_ARG(); |
| 1459 | get_prefix(&filter.rsrc, *argv, do_ipv6); |
| 1460 | } else if (matches(*argv, "match") == 0) { |
| 1461 | NEXT_ARG(); |
| 1462 | get_prefix(&filter.msrc, *argv, do_ipv6); |
| 1463 | } else { |
| 1464 | if (matches(*argv, "exact") == 0) { |
| 1465 | NEXT_ARG(); |
| 1466 | } |
| 1467 | get_prefix(&filter.msrc, *argv, do_ipv6); |
| 1468 | filter.rsrc = filter.msrc; |
| 1469 | } |
| 1470 | } else { |
| 1471 | if (matches(*argv, "to") == 0) { |
| 1472 | NEXT_ARG(); |
| 1473 | } |
| 1474 | if (matches(*argv, "root") == 0) { |
| 1475 | NEXT_ARG(); |
| 1476 | get_prefix(&filter.rdst, *argv, do_ipv6); |
| 1477 | } else if (matches(*argv, "match") == 0) { |
| 1478 | NEXT_ARG(); |
| 1479 | get_prefix(&filter.mdst, *argv, do_ipv6); |
| 1480 | } else { |
| 1481 | if (matches(*argv, "exact") == 0) { |
| 1482 | NEXT_ARG(); |
| 1483 | } |
| 1484 | get_prefix(&filter.mdst, *argv, do_ipv6); |
| 1485 | filter.rdst = filter.mdst; |
| 1486 | } |
| 1487 | } |
| 1488 | argc--; argv++; |
| 1489 | } |
| 1490 | |
| 1491 | if (do_ipv6 == AF_UNSPEC && filter.tb) |
| 1492 | do_ipv6 = AF_INET; |
| 1493 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1494 | if (id || od) { |
| 1495 | int idx; |
| 1496 | |
| 1497 | if (id) { |
| 1498 | if ((idx = ll_name_to_index(id)) == 0) { |
| 1499 | fprintf(stderr, "Cannot find device \"%s\"\n", id); |
| 1500 | return -1; |
| 1501 | } |
| 1502 | filter.iif = idx; |
| 1503 | filter.iifmask = -1; |
| 1504 | } |
| 1505 | if (od) { |
| 1506 | if ((idx = ll_name_to_index(od)) == 0) { |
| 1507 | fprintf(stderr, "Cannot find device \"%s\"\n", od); |
| 1508 | return -1; |
| 1509 | } |
| 1510 | filter.oif = idx; |
| 1511 | filter.oifmask = -1; |
| 1512 | } |
| 1513 | } |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1514 | filter.mark = mark; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1515 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1516 | if (action == IPROUTE_FLUSH) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1517 | int round = 0; |
| 1518 | char flushb[4096-512]; |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 1519 | time_t start = time(0); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1520 | |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1521 | if (filter.cloned) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1522 | if (do_ipv6 != AF_INET6) { |
| 1523 | iproute_flush_cache(); |
| 1524 | if (show_stats) |
| 1525 | printf("*** IPv4 routing cache is flushed.\n"); |
| 1526 | } |
| 1527 | if (do_ipv6 == AF_INET) |
| 1528 | return 0; |
| 1529 | } |
| 1530 | |
| 1531 | filter.flushb = flushb; |
| 1532 | filter.flushp = 0; |
| 1533 | filter.flushe = sizeof(flushb); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1534 | |
| 1535 | for (;;) { |
| 1536 | if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) { |
| 1537 | perror("Cannot send dump request"); |
| 1538 | exit(1); |
| 1539 | } |
| 1540 | filter.flushed = 0; |
Stephen Hemminger | cd70f3f | 2011-12-28 10:37:12 -0800 | [diff] [blame] | 1541 | if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1542 | fprintf(stderr, "Flush terminated\n"); |
| 1543 | exit(1); |
| 1544 | } |
| 1545 | if (filter.flushed == 0) { |
Andreas Henriksson | f0b34d2 | 2008-08-29 19:52:48 +0200 | [diff] [blame] | 1546 | if (show_stats) { |
| 1547 | if (round == 0 && (!filter.cloned || do_ipv6 == AF_INET6)) |
| 1548 | printf("Nothing to flush.\n"); |
| 1549 | else |
| 1550 | printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":""); |
| 1551 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1552 | fflush(stdout); |
| 1553 | return 0; |
| 1554 | } |
| 1555 | round++; |
| 1556 | if (flush_update() < 0) |
| 1557 | exit(1); |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 1558 | |
| 1559 | if (time(0) - start > 30) { |
| 1560 | printf("\n*** Flush not completed after %ld seconds, %d entries remain ***\n", |
Adam Borowski | 5d8a752 | 2013-06-25 01:39:21 +0200 | [diff] [blame] | 1561 | (long)(time(0) - start), filter.flushed); |
osdl.org!shemminger | 3355124 | 2004-06-08 22:51:46 +0000 | [diff] [blame] | 1562 | exit(1); |
| 1563 | } |
| 1564 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1565 | if (show_stats) { |
| 1566 | printf("\n*** Round %d, deleting %d entries ***\n", round, filter.flushed); |
| 1567 | fflush(stdout); |
| 1568 | } |
| 1569 | } |
| 1570 | } |
| 1571 | |
Patrick McHardy | bd4bcda | 2006-08-11 00:14:49 +0200 | [diff] [blame] | 1572 | if (!filter.cloned) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1573 | if (rtnl_wilddump_request(&rth, do_ipv6, RTM_GETROUTE) < 0) { |
| 1574 | perror("Cannot send dump request"); |
| 1575 | exit(1); |
| 1576 | } |
| 1577 | } else { |
| 1578 | if (rtnl_rtcache_request(&rth, do_ipv6) < 0) { |
| 1579 | perror("Cannot send dump request"); |
| 1580 | exit(1); |
| 1581 | } |
| 1582 | } |
| 1583 | |
Stephen Hemminger | cd70f3f | 2011-12-28 10:37:12 -0800 | [diff] [blame] | 1584 | if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1585 | fprintf(stderr, "Dump terminated\n"); |
| 1586 | exit(1); |
| 1587 | } |
| 1588 | |
| 1589 | exit(0); |
| 1590 | } |
| 1591 | |
| 1592 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 1593 | static int iproute_get(int argc, char **argv) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1594 | { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1595 | struct { |
Stephen Hemminger | 4806867 | 2014-02-17 10:56:31 -0800 | [diff] [blame] | 1596 | struct nlmsghdr n; |
| 1597 | struct rtmsg r; |
| 1598 | char buf[1024]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1599 | } req; |
| 1600 | char *idev = NULL; |
| 1601 | char *odev = NULL; |
| 1602 | int connected = 0; |
| 1603 | int from_ok = 0; |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1604 | unsigned int mark = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1605 | |
| 1606 | memset(&req, 0, sizeof(req)); |
| 1607 | |
vadimk | 093b764 | 2014-10-20 12:25:17 +0300 | [diff] [blame] | 1608 | iproute_reset_filter(0); |
Ulrich Weber | c73f3e0 | 2010-08-12 11:05:19 +0200 | [diff] [blame] | 1609 | filter.cloned = 2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1610 | |
| 1611 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)); |
| 1612 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 1613 | req.n.nlmsg_type = RTM_GETROUTE; |
| 1614 | req.r.rtm_family = preferred_family; |
| 1615 | req.r.rtm_table = 0; |
| 1616 | req.r.rtm_protocol = 0; |
| 1617 | req.r.rtm_scope = 0; |
| 1618 | req.r.rtm_type = 0; |
| 1619 | req.r.rtm_src_len = 0; |
| 1620 | req.r.rtm_dst_len = 0; |
| 1621 | req.r.rtm_tos = 0; |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1622 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1623 | while (argc > 0) { |
| 1624 | if (strcmp(*argv, "tos") == 0 || |
| 1625 | matches(*argv, "dsfield") == 0) { |
| 1626 | __u32 tos; |
| 1627 | NEXT_ARG(); |
| 1628 | if (rtnl_dsfield_a2n(&tos, *argv)) |
| 1629 | invarg("TOS value is invalid\n", *argv); |
| 1630 | req.r.rtm_tos = tos; |
| 1631 | } else if (matches(*argv, "from") == 0) { |
| 1632 | inet_prefix addr; |
| 1633 | NEXT_ARG(); |
| 1634 | if (matches(*argv, "help") == 0) |
| 1635 | usage(); |
| 1636 | from_ok = 1; |
| 1637 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 1638 | if (req.r.rtm_family == AF_UNSPEC) |
| 1639 | req.r.rtm_family = addr.family; |
| 1640 | if (addr.bytelen) |
| 1641 | addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen); |
| 1642 | req.r.rtm_src_len = addr.bitlen; |
| 1643 | } else if (matches(*argv, "iif") == 0) { |
| 1644 | NEXT_ARG(); |
| 1645 | idev = *argv; |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1646 | } else if (matches(*argv, "mark") == 0) { |
| 1647 | NEXT_ARG(); |
| 1648 | get_unsigned(&mark, *argv, 0); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1649 | } else if (matches(*argv, "oif") == 0 || |
| 1650 | strcmp(*argv, "dev") == 0) { |
| 1651 | NEXT_ARG(); |
| 1652 | odev = *argv; |
| 1653 | } else if (matches(*argv, "notify") == 0) { |
| 1654 | req.r.rtm_flags |= RTM_F_NOTIFY; |
| 1655 | } else if (matches(*argv, "connected") == 0) { |
| 1656 | connected = 1; |
| 1657 | } else { |
| 1658 | inet_prefix addr; |
| 1659 | if (strcmp(*argv, "to") == 0) { |
| 1660 | NEXT_ARG(); |
| 1661 | } |
| 1662 | if (matches(*argv, "help") == 0) |
| 1663 | usage(); |
| 1664 | get_prefix(&addr, *argv, req.r.rtm_family); |
| 1665 | if (req.r.rtm_family == AF_UNSPEC) |
| 1666 | req.r.rtm_family = addr.family; |
| 1667 | if (addr.bytelen) |
| 1668 | addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen); |
| 1669 | req.r.rtm_dst_len = addr.bitlen; |
| 1670 | } |
| 1671 | argc--; argv++; |
| 1672 | } |
| 1673 | |
| 1674 | if (req.r.rtm_dst_len == 0) { |
Kees van Reeuwijk | 14645ec | 2013-02-08 03:32:36 +0000 | [diff] [blame] | 1675 | fprintf(stderr, "need at least a destination address\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1676 | exit(1); |
| 1677 | } |
| 1678 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1679 | if (idev || odev) { |
| 1680 | int idx; |
| 1681 | |
| 1682 | if (idev) { |
| 1683 | if ((idx = ll_name_to_index(idev)) == 0) { |
| 1684 | fprintf(stderr, "Cannot find device \"%s\"\n", idev); |
| 1685 | return -1; |
| 1686 | } |
| 1687 | addattr32(&req.n, sizeof(req), RTA_IIF, idx); |
| 1688 | } |
| 1689 | if (odev) { |
| 1690 | if ((idx = ll_name_to_index(odev)) == 0) { |
| 1691 | fprintf(stderr, "Cannot find device \"%s\"\n", odev); |
| 1692 | return -1; |
| 1693 | } |
| 1694 | addattr32(&req.n, sizeof(req), RTA_OIF, idx); |
| 1695 | } |
| 1696 | } |
Eric Dumazet | b0373bf | 2010-07-21 11:42:50 +0200 | [diff] [blame] | 1697 | if (mark) |
| 1698 | addattr32(&req.n, sizeof(req), RTA_MARK, mark); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1699 | |
| 1700 | if (req.r.rtm_family == AF_UNSPEC) |
| 1701 | req.r.rtm_family = AF_INET; |
| 1702 | |
David Ahern | bc23430 | 2015-09-21 11:19:48 -0700 | [diff] [blame] | 1703 | req.r.rtm_flags |= RTM_F_LOOKUP_TABLE; |
| 1704 | |
Stephen Hemminger | c079e12 | 2015-05-27 12:26:14 -0700 | [diff] [blame] | 1705 | if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0) |
Roopa Prabhu | 8b21cef | 2015-10-15 15:23:50 -0700 | [diff] [blame] | 1706 | return -2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1707 | |
| 1708 | if (connected && !from_ok) { |
| 1709 | struct rtmsg *r = NLMSG_DATA(&req.n); |
| 1710 | int len = req.n.nlmsg_len; |
| 1711 | struct rtattr * tb[RTA_MAX+1]; |
| 1712 | |
| 1713 | if (print_route(NULL, &req.n, (void*)stdout) < 0) { |
| 1714 | fprintf(stderr, "An error :-)\n"); |
| 1715 | exit(1); |
| 1716 | } |
| 1717 | |
| 1718 | if (req.n.nlmsg_type != RTM_NEWROUTE) { |
| 1719 | fprintf(stderr, "Not a route?\n"); |
| 1720 | return -1; |
| 1721 | } |
| 1722 | len -= NLMSG_LENGTH(sizeof(*r)); |
| 1723 | if (len < 0) { |
| 1724 | fprintf(stderr, "Wrong len %d\n", len); |
| 1725 | return -1; |
| 1726 | } |
| 1727 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1728 | parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len); |
| 1729 | |
| 1730 | if (tb[RTA_PREFSRC]) { |
| 1731 | tb[RTA_PREFSRC]->rta_type = RTA_SRC; |
| 1732 | r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]); |
| 1733 | } else if (!tb[RTA_SRC]) { |
| 1734 | fprintf(stderr, "Failed to connect the route\n"); |
| 1735 | return -1; |
| 1736 | } |
| 1737 | if (!odev && tb[RTA_OIF]) |
| 1738 | tb[RTA_OIF]->rta_type = 0; |
| 1739 | if (tb[RTA_GATEWAY]) |
| 1740 | tb[RTA_GATEWAY]->rta_type = 0; |
Eric W. Biederman | 93ae283 | 2015-03-15 14:52:06 -0500 | [diff] [blame] | 1741 | if (tb[RTA_VIA]) |
| 1742 | tb[RTA_VIA]->rta_type = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1743 | if (!idev && tb[RTA_IIF]) |
| 1744 | tb[RTA_IIF]->rta_type = 0; |
| 1745 | req.n.nlmsg_flags = NLM_F_REQUEST; |
| 1746 | req.n.nlmsg_type = RTM_GETROUTE; |
| 1747 | |
Stephen Hemminger | c079e12 | 2015-05-27 12:26:14 -0700 | [diff] [blame] | 1748 | if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0) |
Roopa Prabhu | 56d8ff0 | 2015-07-15 17:06:36 -0700 | [diff] [blame] | 1749 | return -2; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1750 | } |
| 1751 | |
| 1752 | if (print_route(NULL, &req.n, (void*)stdout) < 0) { |
| 1753 | fprintf(stderr, "An error :-)\n"); |
Roopa Prabhu | 56d8ff0 | 2015-07-15 17:06:36 -0700 | [diff] [blame] | 1754 | return -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1755 | } |
| 1756 | |
Roopa Prabhu | 56d8ff0 | 2015-07-15 17:06:36 -0700 | [diff] [blame] | 1757 | return 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1758 | } |
| 1759 | |
Nicolas Dichtel | 0628cdd | 2015-05-20 16:19:58 +0200 | [diff] [blame] | 1760 | static int restore_handler(const struct sockaddr_nl *nl, |
| 1761 | struct rtnl_ctrl_data *ctrl, |
| 1762 | struct nlmsghdr *n, void *arg) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1763 | { |
| 1764 | int ret; |
| 1765 | |
| 1766 | n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK; |
| 1767 | |
| 1768 | ll_init_map(&rth); |
| 1769 | |
Stephen Hemminger | c079e12 | 2015-05-27 12:26:14 -0700 | [diff] [blame] | 1770 | ret = rtnl_talk(&rth, n, n, sizeof(*n)); |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1771 | if ((ret < 0) && (errno == EEXIST)) |
| 1772 | ret = 0; |
| 1773 | |
| 1774 | return ret; |
| 1775 | } |
| 1776 | |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1777 | static int route_dump_check_magic(void) |
| 1778 | { |
| 1779 | int ret; |
| 1780 | __u32 magic = 0; |
| 1781 | |
| 1782 | if (isatty(STDIN_FILENO)) { |
| 1783 | fprintf(stderr, "Can't restore route dump from a terminal\n"); |
| 1784 | return -1; |
| 1785 | } |
| 1786 | |
| 1787 | ret = fread(&magic, sizeof(magic), 1, stdin); |
| 1788 | if (magic != route_dump_magic) { |
| 1789 | fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic); |
| 1790 | return -1; |
| 1791 | } |
| 1792 | |
| 1793 | return 0; |
| 1794 | } |
| 1795 | |
Stephen Hemminger | d1f28cf | 2013-02-12 11:09:03 -0800 | [diff] [blame] | 1796 | static int iproute_restore(void) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1797 | { |
Pavel Emelyanov | 76c61b3 | 2012-07-26 18:55:41 +0000 | [diff] [blame] | 1798 | if (route_dump_check_magic()) |
| 1799 | exit(-1); |
| 1800 | |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1801 | exit(rtnl_from_file(stdin, &restore_handler, NULL)); |
| 1802 | } |
| 1803 | |
Nicolas Dichtel | 0628cdd | 2015-05-20 16:19:58 +0200 | [diff] [blame] | 1804 | static int show_handler(const struct sockaddr_nl *nl, |
| 1805 | struct rtnl_ctrl_data *ctrl, |
| 1806 | struct nlmsghdr *n, void *arg) |
Pavel Emelyanov | 93b7986 | 2012-07-27 08:57:20 +0400 | [diff] [blame] | 1807 | { |
| 1808 | print_route(nl, n, stdout); |
| 1809 | return 0; |
| 1810 | } |
| 1811 | |
| 1812 | static int iproute_showdump(void) |
| 1813 | { |
| 1814 | if (route_dump_check_magic()) |
| 1815 | exit(-1); |
| 1816 | |
| 1817 | exit(rtnl_from_file(stdin, &show_handler, NULL)); |
| 1818 | } |
| 1819 | |
vadimk | 093b764 | 2014-10-20 12:25:17 +0300 | [diff] [blame] | 1820 | void iproute_reset_filter(int ifindex) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1821 | { |
| 1822 | memset(&filter, 0, sizeof(filter)); |
| 1823 | filter.mdst.bitlen = -1; |
| 1824 | filter.msrc.bitlen = -1; |
vadimk | 093b764 | 2014-10-20 12:25:17 +0300 | [diff] [blame] | 1825 | filter.oif = ifindex; |
| 1826 | if (filter.oif > 0) |
| 1827 | filter.oifmask = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1828 | } |
| 1829 | |
| 1830 | int do_iproute(int argc, char **argv) |
| 1831 | { |
| 1832 | if (argc < 1) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1833 | return iproute_list_flush_or_save(0, NULL, IPROUTE_LIST); |
Stephen Hemminger | ae665a5 | 2006-12-05 10:10:22 -0800 | [diff] [blame] | 1834 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1835 | if (matches(*argv, "add") == 0) |
| 1836 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL, |
| 1837 | argc-1, argv+1); |
| 1838 | if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0) |
| 1839 | return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE, |
| 1840 | argc-1, argv+1); |
| 1841 | if (matches(*argv, "replace") == 0) |
| 1842 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE, |
| 1843 | argc-1, argv+1); |
| 1844 | if (matches(*argv, "prepend") == 0) |
| 1845 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE, |
| 1846 | argc-1, argv+1); |
| 1847 | if (matches(*argv, "append") == 0) |
| 1848 | return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND, |
| 1849 | argc-1, argv+1); |
| 1850 | if (matches(*argv, "test") == 0) |
| 1851 | return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL, |
| 1852 | argc-1, argv+1); |
| 1853 | if (matches(*argv, "delete") == 0) |
| 1854 | return iproute_modify(RTM_DELROUTE, 0, |
| 1855 | argc-1, argv+1); |
| 1856 | if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0 |
| 1857 | || matches(*argv, "lst") == 0) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1858 | return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_LIST); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1859 | if (matches(*argv, "get") == 0) |
| 1860 | return iproute_get(argc-1, argv+1); |
| 1861 | if (matches(*argv, "flush") == 0) |
Dan Smith | f4ff11e | 2010-12-01 11:24:58 -0800 | [diff] [blame] | 1862 | return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_FLUSH); |
| 1863 | if (matches(*argv, "save") == 0) |
| 1864 | return iproute_list_flush_or_save(argc-1, argv+1, IPROUTE_SAVE); |
| 1865 | if (matches(*argv, "restore") == 0) |
| 1866 | return iproute_restore(); |
Pavel Emelyanov | 93b7986 | 2012-07-27 08:57:20 +0400 | [diff] [blame] | 1867 | if (matches(*argv, "showdump") == 0) |
| 1868 | return iproute_showdump(); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1869 | if (matches(*argv, "help") == 0) |
| 1870 | usage(); |
| 1871 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv); |
| 1872 | exit(-1); |
| 1873 | } |