paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 1 | /* BGP4 SNMP support |
| 2 | Copyright (C) 1999, 2000 Kunihiro Ishiguro |
| 3 | |
| 4 | This file is part of GNU Zebra. |
| 5 | |
| 6 | GNU Zebra is free software; you can redistribute it and/or modify it |
| 7 | under the terms of the GNU General Public License as published by the |
| 8 | Free Software Foundation; either version 2, or (at your option) any |
| 9 | later version. |
| 10 | |
| 11 | GNU Zebra is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Zebra; see the file COPYING. If not, write to the Free |
| 18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 19 | 02111-1307, USA. */ |
| 20 | |
| 21 | #include <zebra.h> |
| 22 | |
| 23 | #ifdef HAVE_SNMP |
paul | 07661cb | 2003-03-18 00:03:05 +0000 | [diff] [blame] | 24 | #include <net-snmp/net-snmp-config.h> |
Joakim Tjernlund | fb62a3c | 2008-05-13 20:03:32 +0200 | [diff] [blame] | 25 | #include <net-snmp/net-snmp-includes.h> |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 26 | |
| 27 | #include "if.h" |
| 28 | #include "log.h" |
| 29 | #include "prefix.h" |
| 30 | #include "command.h" |
| 31 | #include "thread.h" |
| 32 | #include "smux.h" |
| 33 | |
| 34 | #include "bgpd/bgpd.h" |
| 35 | #include "bgpd/bgp_table.h" |
| 36 | #include "bgpd/bgp_aspath.h" |
| 37 | #include "bgpd/bgp_attr.h" |
| 38 | #include "bgpd/bgp_route.h" |
| 39 | #include "bgpd/bgp_fsm.h" |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 40 | #include "bgpd/bgp_snmp.h" |
David Lamparter | 6b0655a | 2014-06-04 06:53:35 +0200 | [diff] [blame] | 41 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 42 | /* BGP4-MIB described in RFC1657. */ |
| 43 | #define BGP4MIB 1,3,6,1,2,1,15 |
| 44 | |
paul | 020709f | 2003-04-04 02:44:16 +0000 | [diff] [blame] | 45 | /* BGP TRAP. */ |
| 46 | #define BGPESTABLISHED 1 |
| 47 | #define BGPBACKWARDTRANSITION 2 |
| 48 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 49 | /* BGP MIB bgpVersion. */ |
| 50 | #define BGPVERSION 0 |
| 51 | |
| 52 | /* BGP MIB bgpLocalAs. */ |
| 53 | #define BGPLOCALAS 0 |
| 54 | |
| 55 | /* BGP MIB bgpPeerTable. */ |
| 56 | #define BGPPEERIDENTIFIER 1 |
| 57 | #define BGPPEERSTATE 2 |
| 58 | #define BGPPEERADMINSTATUS 3 |
| 59 | #define BGPPEERNEGOTIATEDVERSION 4 |
| 60 | #define BGPPEERLOCALADDR 5 |
| 61 | #define BGPPEERLOCALPORT 6 |
| 62 | #define BGPPEERREMOTEADDR 7 |
| 63 | #define BGPPEERREMOTEPORT 8 |
| 64 | #define BGPPEERREMOTEAS 9 |
| 65 | #define BGPPEERINUPDATES 10 |
| 66 | #define BGPPEEROUTUPDATES 11 |
| 67 | #define BGPPEERINTOTALMESSAGES 12 |
| 68 | #define BGPPEEROUTTOTALMESSAGES 13 |
| 69 | #define BGPPEERLASTERROR 14 |
| 70 | #define BGPPEERFSMESTABLISHEDTRANSITIONS 15 |
| 71 | #define BGPPEERFSMESTABLISHEDTIME 16 |
| 72 | #define BGPPEERCONNECTRETRYINTERVAL 17 |
| 73 | #define BGPPEERHOLDTIME 18 |
| 74 | #define BGPPEERKEEPALIVE 19 |
| 75 | #define BGPPEERHOLDTIMECONFIGURED 20 |
| 76 | #define BGPPEERKEEPALIVECONFIGURED 21 |
| 77 | #define BGPPEERMINASORIGINATIONINTERVAL 22 |
| 78 | #define BGPPEERMINROUTEADVERTISEMENTINTERVAL 23 |
| 79 | #define BGPPEERINUPDATEELAPSEDTIME 24 |
| 80 | |
| 81 | /* BGP MIB bgpIdentifier. */ |
| 82 | #define BGPIDENTIFIER 0 |
| 83 | |
| 84 | /* BGP MIB bgpRcvdPathAttrTable */ |
| 85 | #define BGPPATHATTRPEER 1 |
| 86 | #define BGPPATHATTRDESTNETWORK 2 |
| 87 | #define BGPPATHATTRORIGIN 3 |
| 88 | #define BGPPATHATTRASPATH 4 |
| 89 | #define BGPPATHATTRNEXTHOP 5 |
| 90 | #define BGPPATHATTRINTERASMETRIC 6 |
| 91 | |
| 92 | /* BGP MIB bgp4PathAttrTable. */ |
| 93 | #define BGP4PATHATTRPEER 1 |
| 94 | #define BGP4PATHATTRIPADDRPREFIXLEN 2 |
| 95 | #define BGP4PATHATTRIPADDRPREFIX 3 |
| 96 | #define BGP4PATHATTRORIGIN 4 |
| 97 | #define BGP4PATHATTRASPATHSEGMENT 5 |
| 98 | #define BGP4PATHATTRNEXTHOP 6 |
| 99 | #define BGP4PATHATTRMULTIEXITDISC 7 |
| 100 | #define BGP4PATHATTRLOCALPREF 8 |
| 101 | #define BGP4PATHATTRATOMICAGGREGATE 9 |
| 102 | #define BGP4PATHATTRAGGREGATORAS 10 |
| 103 | #define BGP4PATHATTRAGGREGATORADDR 11 |
| 104 | #define BGP4PATHATTRCALCLOCALPREF 12 |
| 105 | #define BGP4PATHATTRBEST 13 |
| 106 | #define BGP4PATHATTRUNKNOWN 14 |
| 107 | |
| 108 | /* SNMP value hack. */ |
| 109 | #define INTEGER ASN_INTEGER |
| 110 | #define INTEGER32 ASN_INTEGER |
| 111 | #define COUNTER32 ASN_COUNTER |
| 112 | #define OCTET_STRING ASN_OCTET_STR |
| 113 | #define IPADDRESS ASN_IPADDRESS |
| 114 | #define GAUGE32 ASN_UNSIGNED |
David Lamparter | 6b0655a | 2014-06-04 06:53:35 +0200 | [diff] [blame] | 115 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 116 | /* Declare static local variables for convenience. */ |
| 117 | SNMP_LOCAL_VARIABLES |
| 118 | |
| 119 | /* BGP-MIB instances. */ |
| 120 | oid bgp_oid [] = { BGP4MIB }; |
Vincent Bernat | b7c0d06 | 2012-05-25 11:17:01 +0200 | [diff] [blame] | 121 | oid bgp_trap_oid [] = { BGP4MIB, 0 }; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 122 | |
| 123 | /* IP address 0.0.0.0. */ |
David Lamparter | 5181a02 | 2015-09-15 03:00:09 -0700 | [diff] [blame^] | 124 | static struct in_addr bgp_empty_addr = { .s_addr = 0 }; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 125 | |
| 126 | /* Hook functions. */ |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 127 | static u_char *bgpVersion (struct variable *, oid [], size_t *, int, |
| 128 | size_t *, WriteMethod **); |
| 129 | static u_char *bgpLocalAs (struct variable *, oid [], size_t *, |
| 130 | int, size_t *, WriteMethod **); |
| 131 | static u_char *bgpPeerTable (struct variable *, oid [], size_t *, |
| 132 | int, size_t *, WriteMethod **); |
| 133 | static u_char *bgpRcvdPathAttrTable (struct variable *, oid [], size_t *, |
| 134 | int, size_t *, WriteMethod **); |
| 135 | static u_char *bgpIdentifier (struct variable *, oid [], size_t *, |
| 136 | int, size_t *, WriteMethod **); |
| 137 | static u_char *bgp4PathAttrTable (struct variable *, oid [], size_t *, |
| 138 | int, size_t *, WriteMethod **); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 139 | /* static u_char *bgpTraps (); */ |
| 140 | |
| 141 | struct variable bgp_variables[] = |
| 142 | { |
| 143 | /* BGP version. */ |
| 144 | {BGPVERSION, OCTET_STRING, RONLY, bgpVersion, |
| 145 | 1, {1}}, |
| 146 | /* BGP local AS. */ |
| 147 | {BGPLOCALAS, INTEGER, RONLY, bgpLocalAs, |
| 148 | 1, {2}}, |
| 149 | /* BGP peer table. */ |
| 150 | {BGPPEERIDENTIFIER, IPADDRESS, RONLY, bgpPeerTable, |
| 151 | 3, {3, 1, 1}}, |
| 152 | {BGPPEERSTATE, INTEGER, RONLY, bgpPeerTable, |
| 153 | 3, {3, 1, 2}}, |
| 154 | {BGPPEERADMINSTATUS, INTEGER, RWRITE, bgpPeerTable, |
| 155 | 3, {3, 1, 3}}, |
| 156 | {BGPPEERNEGOTIATEDVERSION, INTEGER32, RONLY, bgpPeerTable, |
| 157 | 3, {3, 1, 4}}, |
| 158 | {BGPPEERLOCALADDR, IPADDRESS, RONLY, bgpPeerTable, |
| 159 | 3, {3, 1, 5}}, |
| 160 | {BGPPEERLOCALPORT, INTEGER, RONLY, bgpPeerTable, |
| 161 | 3, {3, 1, 6}}, |
| 162 | {BGPPEERREMOTEADDR, IPADDRESS, RONLY, bgpPeerTable, |
| 163 | 3, {3, 1, 7}}, |
| 164 | {BGPPEERREMOTEPORT, INTEGER, RONLY, bgpPeerTable, |
| 165 | 3, {3, 1, 8}}, |
| 166 | {BGPPEERREMOTEAS, INTEGER, RONLY, bgpPeerTable, |
| 167 | 3, {3, 1, 9}}, |
| 168 | {BGPPEERINUPDATES, COUNTER32, RONLY, bgpPeerTable, |
| 169 | 3, {3, 1, 10}}, |
| 170 | {BGPPEEROUTUPDATES, COUNTER32, RONLY, bgpPeerTable, |
| 171 | 3, {3, 1, 11}}, |
| 172 | {BGPPEERINTOTALMESSAGES, COUNTER32, RONLY, bgpPeerTable, |
| 173 | 3, {3, 1, 12}}, |
| 174 | {BGPPEEROUTTOTALMESSAGES, COUNTER32, RONLY, bgpPeerTable, |
| 175 | 3, {3, 1, 13}}, |
| 176 | {BGPPEERLASTERROR, OCTET_STRING, RONLY, bgpPeerTable, |
| 177 | 3, {3, 1, 14}}, |
| 178 | {BGPPEERFSMESTABLISHEDTRANSITIONS, COUNTER32, RONLY, bgpPeerTable, |
| 179 | 3, {3, 1, 15}}, |
| 180 | {BGPPEERFSMESTABLISHEDTIME, GAUGE32, RONLY, bgpPeerTable, |
| 181 | 3, {3, 1, 16}}, |
| 182 | {BGPPEERCONNECTRETRYINTERVAL, INTEGER, RWRITE, bgpPeerTable, |
| 183 | 3, {3, 1, 17}}, |
| 184 | {BGPPEERHOLDTIME, INTEGER, RONLY, bgpPeerTable, |
| 185 | 3, {3, 1, 18}}, |
| 186 | {BGPPEERKEEPALIVE, INTEGER, RONLY, bgpPeerTable, |
| 187 | 3, {3, 1, 19}}, |
| 188 | {BGPPEERHOLDTIMECONFIGURED, INTEGER, RWRITE, bgpPeerTable, |
| 189 | 3, {3, 1, 20}}, |
| 190 | {BGPPEERKEEPALIVECONFIGURED, INTEGER, RWRITE, bgpPeerTable, |
| 191 | 3, {3, 1, 21}}, |
| 192 | {BGPPEERMINASORIGINATIONINTERVAL, INTEGER, RWRITE, bgpPeerTable, |
| 193 | 3, {3, 1, 22}}, |
| 194 | {BGPPEERMINROUTEADVERTISEMENTINTERVAL, INTEGER, RWRITE, bgpPeerTable, |
| 195 | 3, {3, 1, 23}}, |
| 196 | {BGPPEERINUPDATEELAPSEDTIME, GAUGE32, RONLY, bgpPeerTable, |
| 197 | 3, {3, 1, 24}}, |
| 198 | /* BGP identifier. */ |
| 199 | {BGPIDENTIFIER, IPADDRESS, RONLY, bgpIdentifier, |
| 200 | 1, {4}}, |
| 201 | /* BGP received path attribute table. */ |
| 202 | {BGPPATHATTRPEER, IPADDRESS, RONLY, bgpRcvdPathAttrTable, |
| 203 | 3, {5, 1, 1}}, |
| 204 | {BGPPATHATTRDESTNETWORK, IPADDRESS, RONLY, bgpRcvdPathAttrTable, |
| 205 | 3, {5, 1, 2}}, |
| 206 | {BGPPATHATTRORIGIN, INTEGER, RONLY, bgpRcvdPathAttrTable, |
| 207 | 3, {5, 1, 3}}, |
| 208 | {BGPPATHATTRASPATH, OCTET_STRING, RONLY, bgpRcvdPathAttrTable, |
| 209 | 3, {5, 1, 4}}, |
| 210 | {BGPPATHATTRNEXTHOP, IPADDRESS, RONLY, bgpRcvdPathAttrTable, |
| 211 | 3, {5, 1, 5}}, |
| 212 | {BGPPATHATTRINTERASMETRIC, INTEGER32, RONLY, bgpRcvdPathAttrTable, |
| 213 | 3, {5, 1, 6}}, |
| 214 | /* BGP-4 received path attribute table. */ |
| 215 | {BGP4PATHATTRPEER, IPADDRESS, RONLY, bgp4PathAttrTable, |
| 216 | 3, {6, 1, 1}}, |
| 217 | {BGP4PATHATTRIPADDRPREFIXLEN, INTEGER, RONLY, bgp4PathAttrTable, |
| 218 | 3, {6, 1, 2}}, |
| 219 | {BGP4PATHATTRIPADDRPREFIX, IPADDRESS, RONLY, bgp4PathAttrTable, |
| 220 | 3, {6, 1, 3}}, |
| 221 | {BGP4PATHATTRORIGIN, INTEGER, RONLY, bgp4PathAttrTable, |
| 222 | 3, {6, 1, 4}}, |
| 223 | {BGP4PATHATTRASPATHSEGMENT, OCTET_STRING, RONLY, bgp4PathAttrTable, |
| 224 | 3, {6, 1, 5}}, |
| 225 | {BGP4PATHATTRNEXTHOP, IPADDRESS, RONLY, bgp4PathAttrTable, |
| 226 | 3, {6, 1, 6}}, |
| 227 | {BGP4PATHATTRMULTIEXITDISC, INTEGER, RONLY, bgp4PathAttrTable, |
| 228 | 3, {6, 1, 7}}, |
| 229 | {BGP4PATHATTRLOCALPREF, INTEGER, RONLY, bgp4PathAttrTable, |
| 230 | 3, {6, 1, 8}}, |
| 231 | {BGP4PATHATTRATOMICAGGREGATE, INTEGER, RONLY, bgp4PathAttrTable, |
| 232 | 3, {6, 1, 9}}, |
| 233 | {BGP4PATHATTRAGGREGATORAS, INTEGER, RONLY, bgp4PathAttrTable, |
| 234 | 3, {6, 1, 10}}, |
| 235 | {BGP4PATHATTRAGGREGATORADDR, IPADDRESS, RONLY, bgp4PathAttrTable, |
| 236 | 3, {6, 1, 11}}, |
| 237 | {BGP4PATHATTRCALCLOCALPREF, INTEGER, RONLY, bgp4PathAttrTable, |
| 238 | 3, {6, 1, 12}}, |
| 239 | {BGP4PATHATTRBEST, INTEGER, RONLY, bgp4PathAttrTable, |
| 240 | 3, {6, 1, 13}}, |
| 241 | {BGP4PATHATTRUNKNOWN, OCTET_STRING, RONLY, bgp4PathAttrTable, |
| 242 | 3, {6, 1, 14}}, |
| 243 | }; |
paul | dd488a7 | 2003-06-19 01:21:07 +0000 | [diff] [blame] | 244 | |
David Lamparter | 6b0655a | 2014-06-04 06:53:35 +0200 | [diff] [blame] | 245 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 246 | static u_char * |
| 247 | bgpVersion (struct variable *v, oid name[], size_t *length, int exact, |
| 248 | size_t *var_len, WriteMethod **write_method) |
| 249 | { |
| 250 | static u_char version; |
| 251 | |
| 252 | if (smux_header_generic(v, name, length, exact, var_len, write_method) |
| 253 | == MATCH_FAILED) |
| 254 | return NULL; |
| 255 | |
| 256 | /* Retrun BGP version. Zebra bgpd only support version 4. */ |
| 257 | version = (0x80 >> (BGP_VERSION_4 - 1)); |
| 258 | |
| 259 | /* Return octet string length 1. */ |
| 260 | *var_len = 1; |
| 261 | return (u_char *)&version; |
| 262 | } |
| 263 | |
| 264 | static u_char * |
| 265 | bgpLocalAs (struct variable *v, oid name[], size_t *length, |
| 266 | int exact, size_t *var_len, WriteMethod **write_method) |
| 267 | { |
| 268 | struct bgp *bgp; |
| 269 | |
| 270 | if (smux_header_generic(v, name, length, exact, var_len, write_method) |
| 271 | == MATCH_FAILED) |
| 272 | return NULL; |
| 273 | |
| 274 | /* Get BGP structure. */ |
| 275 | bgp = bgp_get_default (); |
| 276 | if (! bgp) |
| 277 | return NULL; |
| 278 | |
| 279 | return SNMP_INTEGER (bgp->as); |
| 280 | } |
| 281 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 282 | static struct peer * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 283 | peer_lookup_addr_ipv4 (struct in_addr *src) |
| 284 | { |
| 285 | struct bgp *bgp; |
| 286 | struct peer *peer; |
paul | 1eb8ef2 | 2005-04-07 07:30:20 +0000 | [diff] [blame] | 287 | struct listnode *node; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 288 | struct in_addr addr; |
| 289 | int ret; |
| 290 | |
| 291 | bgp = bgp_get_default (); |
| 292 | if (! bgp) |
| 293 | return NULL; |
| 294 | |
paul | 1eb8ef2 | 2005-04-07 07:30:20 +0000 | [diff] [blame] | 295 | for (ALL_LIST_ELEMENTS_RO (bgp->peer, node, peer)) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 296 | { |
| 297 | ret = inet_pton (AF_INET, peer->host, &addr); |
| 298 | if (ret > 0) |
| 299 | { |
| 300 | if (IPV4_ADDR_SAME (&addr, src)) |
| 301 | return peer; |
| 302 | } |
| 303 | } |
| 304 | return NULL; |
| 305 | } |
| 306 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 307 | static struct peer * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 308 | bgp_peer_lookup_next (struct in_addr *src) |
| 309 | { |
| 310 | struct bgp *bgp; |
| 311 | struct peer *peer; |
paul | 1eb8ef2 | 2005-04-07 07:30:20 +0000 | [diff] [blame] | 312 | struct listnode *node; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 313 | struct in_addr *p; |
| 314 | union sockunion su; |
| 315 | int ret; |
| 316 | |
| 317 | memset (&su, 0, sizeof (union sockunion)); |
| 318 | |
| 319 | bgp = bgp_get_default (); |
| 320 | if (! bgp) |
| 321 | return NULL; |
| 322 | |
paul | 1eb8ef2 | 2005-04-07 07:30:20 +0000 | [diff] [blame] | 323 | for (ALL_LIST_ELEMENTS_RO (bgp->peer, node, peer)) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 324 | { |
| 325 | ret = inet_pton (AF_INET, peer->host, &su.sin.sin_addr); |
| 326 | if (ret > 0) |
| 327 | { |
| 328 | p = &su.sin.sin_addr; |
| 329 | |
| 330 | if (ntohl (p->s_addr) > ntohl (src->s_addr)) |
| 331 | { |
| 332 | src->s_addr = p->s_addr; |
| 333 | return peer; |
| 334 | } |
| 335 | } |
| 336 | } |
| 337 | return NULL; |
| 338 | } |
| 339 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 340 | /* 1.3.6.1.2.1.15.3.1.x = 10 */ |
| 341 | #define PEERTAB_NAMELEN 10 |
| 342 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 343 | static struct peer * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 344 | bgpPeerTable_lookup (struct variable *v, oid name[], size_t *length, |
| 345 | struct in_addr *addr, int exact) |
| 346 | { |
| 347 | struct peer *peer = NULL; |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 348 | size_t namelen = v ? v->namelen : PEERTAB_NAMELEN; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 349 | int len; |
| 350 | |
| 351 | if (exact) |
| 352 | { |
| 353 | /* Check the length. */ |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 354 | if (*length - namelen != sizeof (struct in_addr)) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 355 | return NULL; |
| 356 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 357 | oid2in_addr (name + namelen, IN_ADDR_SIZE, addr); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 358 | |
| 359 | peer = peer_lookup_addr_ipv4 (addr); |
| 360 | return peer; |
| 361 | } |
| 362 | else |
| 363 | { |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 364 | len = *length - namelen; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 365 | if (len > 4) len = 4; |
| 366 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 367 | oid2in_addr (name + namelen, len, addr); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 368 | |
| 369 | peer = bgp_peer_lookup_next (addr); |
| 370 | |
| 371 | if (peer == NULL) |
| 372 | return NULL; |
| 373 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 374 | oid_copy_addr (name + namelen, addr, sizeof (struct in_addr)); |
| 375 | *length = sizeof (struct in_addr) + namelen; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 376 | |
| 377 | return peer; |
| 378 | } |
| 379 | return NULL; |
| 380 | } |
| 381 | |
| 382 | /* BGP write methods. */ |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 383 | static int |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 384 | write_bgpPeerTable (int action, u_char *var_val, |
| 385 | u_char var_val_type, size_t var_val_len, |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 386 | u_char *statP, oid *name, size_t length) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 387 | { |
| 388 | struct in_addr addr; |
| 389 | struct peer *peer; |
| 390 | long intval; |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 391 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 392 | if (var_val_type != ASN_INTEGER) |
| 393 | { |
| 394 | return SNMP_ERR_WRONGTYPE; |
| 395 | } |
| 396 | if (var_val_len != sizeof (long)) |
| 397 | { |
| 398 | return SNMP_ERR_WRONGLENGTH; |
| 399 | } |
| 400 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 401 | intval = *(long *)var_val; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 402 | |
| 403 | memset (&addr, 0, sizeof (struct in_addr)); |
| 404 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 405 | peer = bgpPeerTable_lookup (NULL, name, &length, &addr, 1); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 406 | if (! peer) |
| 407 | return SNMP_ERR_NOSUCHNAME; |
| 408 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 409 | if (action != SNMP_MSG_INTERNAL_SET_COMMIT) |
| 410 | return SNMP_ERR_NOERROR; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 411 | |
David Lamparter | d689d1a | 2015-03-03 13:54:30 +0100 | [diff] [blame] | 412 | zlog_info ("%s: SNMP write .%ld = %ld", |
| 413 | peer->host, (long)name[PEERTAB_NAMELEN - 1], intval); |
| 414 | |
| 415 | switch (name[PEERTAB_NAMELEN - 1]) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 416 | { |
| 417 | case BGPPEERADMINSTATUS: |
| 418 | #define BGP_PeerAdmin_stop 1 |
| 419 | #define BGP_PeerAdmin_start 2 |
| 420 | /* When the peer is established, */ |
| 421 | if (intval == BGP_PeerAdmin_stop) |
| 422 | BGP_EVENT_ADD (peer, BGP_Stop); |
| 423 | else if (intval == BGP_PeerAdmin_start) |
| 424 | ; /* Do nothing. */ |
| 425 | else |
| 426 | return SNMP_ERR_NOSUCHNAME; |
| 427 | break; |
| 428 | case BGPPEERCONNECTRETRYINTERVAL: |
| 429 | SET_FLAG (peer->config, PEER_CONFIG_CONNECT); |
| 430 | peer->connect = intval; |
| 431 | peer->v_connect = intval; |
| 432 | break; |
| 433 | case BGPPEERHOLDTIMECONFIGURED: |
| 434 | SET_FLAG (peer->config, PEER_CONFIG_TIMER); |
| 435 | peer->holdtime = intval; |
| 436 | peer->v_holdtime = intval; |
| 437 | break; |
| 438 | case BGPPEERKEEPALIVECONFIGURED: |
| 439 | SET_FLAG (peer->config, PEER_CONFIG_TIMER); |
| 440 | peer->keepalive = intval; |
| 441 | peer->v_keepalive = intval; |
| 442 | break; |
| 443 | case BGPPEERMINASORIGINATIONINTERVAL: |
| 444 | peer->v_asorig = intval; |
| 445 | break; |
| 446 | case BGPPEERMINROUTEADVERTISEMENTINTERVAL: |
| 447 | peer->v_routeadv = intval; |
| 448 | break; |
| 449 | } |
| 450 | return SNMP_ERR_NOERROR; |
| 451 | } |
| 452 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 453 | static u_char * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 454 | bgpPeerTable (struct variable *v, oid name[], size_t *length, |
| 455 | int exact, size_t *var_len, WriteMethod **write_method) |
| 456 | { |
| 457 | static struct in_addr addr; |
| 458 | struct peer *peer; |
| 459 | |
Vincent Bernat | 8046ba6 | 2012-05-31 13:30:28 +0200 | [diff] [blame] | 460 | if (smux_header_table(v, name, length, exact, var_len, write_method) |
| 461 | == MATCH_FAILED) |
| 462 | return NULL; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 463 | memset (&addr, 0, sizeof (struct in_addr)); |
| 464 | |
| 465 | peer = bgpPeerTable_lookup (v, name, length, &addr, exact); |
| 466 | if (! peer) |
| 467 | return NULL; |
| 468 | |
| 469 | switch (v->magic) |
| 470 | { |
| 471 | case BGPPEERIDENTIFIER: |
| 472 | return SNMP_IPADDRESS (peer->remote_id); |
| 473 | break; |
| 474 | case BGPPEERSTATE: |
| 475 | return SNMP_INTEGER (peer->status); |
| 476 | break; |
| 477 | case BGPPEERADMINSTATUS: |
| 478 | *write_method = write_bgpPeerTable; |
| 479 | #define BGP_PeerAdmin_stop 1 |
| 480 | #define BGP_PeerAdmin_start 2 |
| 481 | if (CHECK_FLAG (peer->flags, PEER_FLAG_SHUTDOWN)) |
| 482 | return SNMP_INTEGER (BGP_PeerAdmin_stop); |
| 483 | else |
| 484 | return SNMP_INTEGER (BGP_PeerAdmin_start); |
| 485 | break; |
| 486 | case BGPPEERNEGOTIATEDVERSION: |
hasso | 3d515fd | 2005-02-01 21:30:04 +0000 | [diff] [blame] | 487 | return SNMP_INTEGER (BGP_VERSION_4); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 488 | break; |
| 489 | case BGPPEERLOCALADDR: |
| 490 | if (peer->su_local) |
| 491 | return SNMP_IPADDRESS (peer->su_local->sin.sin_addr); |
| 492 | else |
| 493 | return SNMP_IPADDRESS (bgp_empty_addr); |
| 494 | break; |
| 495 | case BGPPEERLOCALPORT: |
| 496 | if (peer->su_local) |
| 497 | return SNMP_INTEGER (ntohs (peer->su_local->sin.sin_port)); |
| 498 | else |
| 499 | return SNMP_INTEGER (0); |
| 500 | break; |
| 501 | case BGPPEERREMOTEADDR: |
| 502 | if (peer->su_remote) |
| 503 | return SNMP_IPADDRESS (peer->su_remote->sin.sin_addr); |
| 504 | else |
| 505 | return SNMP_IPADDRESS (bgp_empty_addr); |
| 506 | break; |
| 507 | case BGPPEERREMOTEPORT: |
| 508 | if (peer->su_remote) |
| 509 | return SNMP_INTEGER (ntohs (peer->su_remote->sin.sin_port)); |
| 510 | else |
| 511 | return SNMP_INTEGER (0); |
| 512 | break; |
| 513 | case BGPPEERREMOTEAS: |
| 514 | return SNMP_INTEGER (peer->as); |
| 515 | break; |
| 516 | case BGPPEERINUPDATES: |
| 517 | return SNMP_INTEGER (peer->update_in); |
| 518 | break; |
| 519 | case BGPPEEROUTUPDATES: |
| 520 | return SNMP_INTEGER (peer->update_out); |
| 521 | break; |
| 522 | case BGPPEERINTOTALMESSAGES: |
| 523 | return SNMP_INTEGER (peer->open_in + peer->update_in |
| 524 | + peer->keepalive_in + peer->notify_in |
| 525 | + peer->refresh_in + peer->dynamic_cap_in); |
| 526 | break; |
| 527 | case BGPPEEROUTTOTALMESSAGES: |
| 528 | return SNMP_INTEGER (peer->open_out + peer->update_out |
| 529 | + peer->keepalive_out + peer->notify_out |
paul | 07661cb | 2003-03-18 00:03:05 +0000 | [diff] [blame] | 530 | + peer->refresh_out + peer->dynamic_cap_out); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 531 | break; |
| 532 | case BGPPEERLASTERROR: |
| 533 | { |
| 534 | static u_char lasterror[2]; |
| 535 | lasterror[0] = peer->notify.code; |
| 536 | lasterror[1] = peer->notify.subcode; |
| 537 | *var_len = 2; |
| 538 | return (u_char *)&lasterror; |
| 539 | } |
| 540 | break; |
| 541 | case BGPPEERFSMESTABLISHEDTRANSITIONS: |
| 542 | return SNMP_INTEGER (peer->established); |
| 543 | break; |
| 544 | case BGPPEERFSMESTABLISHEDTIME: |
| 545 | if (peer->uptime == 0) |
| 546 | return SNMP_INTEGER (0); |
| 547 | else |
Stephen Hemminger | 6595788 | 2010-01-15 16:22:10 +0300 | [diff] [blame] | 548 | return SNMP_INTEGER (bgp_clock () - peer->uptime); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 549 | break; |
| 550 | case BGPPEERCONNECTRETRYINTERVAL: |
| 551 | *write_method = write_bgpPeerTable; |
| 552 | return SNMP_INTEGER (peer->v_connect); |
| 553 | break; |
| 554 | case BGPPEERHOLDTIME: |
| 555 | return SNMP_INTEGER (peer->v_holdtime); |
| 556 | break; |
| 557 | case BGPPEERKEEPALIVE: |
| 558 | return SNMP_INTEGER (peer->v_keepalive); |
| 559 | break; |
| 560 | case BGPPEERHOLDTIMECONFIGURED: |
| 561 | *write_method = write_bgpPeerTable; |
| 562 | if (CHECK_FLAG (peer->config, PEER_CONFIG_TIMER)) |
| 563 | return SNMP_INTEGER (peer->holdtime); |
| 564 | else |
| 565 | return SNMP_INTEGER (peer->v_holdtime); |
| 566 | break; |
| 567 | case BGPPEERKEEPALIVECONFIGURED: |
| 568 | *write_method = write_bgpPeerTable; |
| 569 | if (CHECK_FLAG (peer->config, PEER_CONFIG_TIMER)) |
| 570 | return SNMP_INTEGER (peer->keepalive); |
| 571 | else |
| 572 | return SNMP_INTEGER (peer->v_keepalive); |
| 573 | break; |
| 574 | case BGPPEERMINASORIGINATIONINTERVAL: |
| 575 | *write_method = write_bgpPeerTable; |
| 576 | return SNMP_INTEGER (peer->v_asorig); |
| 577 | break; |
| 578 | case BGPPEERMINROUTEADVERTISEMENTINTERVAL: |
| 579 | *write_method = write_bgpPeerTable; |
| 580 | return SNMP_INTEGER (peer->v_routeadv); |
| 581 | break; |
| 582 | case BGPPEERINUPDATEELAPSEDTIME: |
| 583 | if (peer->update_time == 0) |
| 584 | return SNMP_INTEGER (0); |
| 585 | else |
Stephen Hemminger | 6595788 | 2010-01-15 16:22:10 +0300 | [diff] [blame] | 586 | return SNMP_INTEGER (bgp_clock () - peer->update_time); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 587 | break; |
| 588 | default: |
| 589 | return NULL; |
| 590 | break; |
| 591 | } |
| 592 | return NULL; |
| 593 | } |
| 594 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 595 | static u_char * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 596 | bgpIdentifier (struct variable *v, oid name[], size_t *length, |
| 597 | int exact, size_t *var_len, WriteMethod **write_method) |
| 598 | { |
| 599 | struct bgp *bgp; |
| 600 | |
| 601 | if (smux_header_generic(v, name, length, exact, var_len, write_method) |
| 602 | == MATCH_FAILED) |
| 603 | return NULL; |
| 604 | |
| 605 | bgp = bgp_get_default (); |
| 606 | if (!bgp) |
| 607 | return NULL; |
| 608 | |
| 609 | return SNMP_IPADDRESS (bgp->router_id); |
| 610 | } |
| 611 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 612 | static u_char * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 613 | bgpRcvdPathAttrTable (struct variable *v, oid name[], size_t *length, |
| 614 | int exact, size_t *var_len, WriteMethod **write_method) |
| 615 | { |
| 616 | /* Received Path Attribute Table. This table contains, one entry |
| 617 | per path to a network, path attributes received from all peers |
| 618 | running BGP version 3 or less. This table is obsolete, having |
| 619 | been replaced in functionality with the bgp4PathAttrTable. */ |
| 620 | return NULL; |
| 621 | } |
| 622 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 623 | static struct bgp_info * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 624 | bgp4PathAttrLookup (struct variable *v, oid name[], size_t *length, |
| 625 | struct bgp *bgp, struct prefix_ipv4 *addr, int exact) |
| 626 | { |
| 627 | oid *offset; |
| 628 | int offsetlen; |
| 629 | struct bgp_info *binfo; |
| 630 | struct bgp_info *min; |
| 631 | struct bgp_node *rn; |
| 632 | union sockunion su; |
paul | fd79ac9 | 2004-10-13 05:06:08 +0000 | [diff] [blame] | 633 | unsigned int len; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 634 | struct in_addr paddr; |
| 635 | |
| 636 | #define BGP_PATHATTR_ENTRY_OFFSET \ |
| 637 | (IN_ADDR_SIZE + 1 + IN_ADDR_SIZE) |
| 638 | |
| 639 | if (exact) |
| 640 | { |
| 641 | if (*length - v->namelen != BGP_PATHATTR_ENTRY_OFFSET) |
| 642 | return NULL; |
| 643 | |
| 644 | /* Set OID offset for prefix. */ |
| 645 | offset = name + v->namelen; |
| 646 | oid2in_addr (offset, IN_ADDR_SIZE, &addr->prefix); |
| 647 | offset += IN_ADDR_SIZE; |
| 648 | |
| 649 | /* Prefix length. */ |
| 650 | addr->prefixlen = *offset; |
| 651 | offset++; |
| 652 | |
| 653 | /* Peer address. */ |
| 654 | su.sin.sin_family = AF_INET; |
| 655 | oid2in_addr (offset, IN_ADDR_SIZE, &su.sin.sin_addr); |
| 656 | |
| 657 | /* Lookup node. */ |
| 658 | rn = bgp_node_lookup (bgp->rib[AFI_IP][SAFI_UNICAST], |
| 659 | (struct prefix *) addr); |
| 660 | if (rn) |
| 661 | { |
| 662 | bgp_unlock_node (rn); |
| 663 | |
| 664 | for (binfo = rn->info; binfo; binfo = binfo->next) |
| 665 | if (sockunion_same (&binfo->peer->su, &su)) |
| 666 | return binfo; |
| 667 | } |
| 668 | } |
| 669 | else |
| 670 | { |
| 671 | offset = name + v->namelen; |
| 672 | offsetlen = *length - v->namelen; |
| 673 | len = offsetlen; |
| 674 | |
| 675 | if (offsetlen == 0) |
| 676 | rn = bgp_table_top (bgp->rib[AFI_IP][SAFI_UNICAST]); |
| 677 | else |
| 678 | { |
| 679 | if (len > IN_ADDR_SIZE) |
| 680 | len = IN_ADDR_SIZE; |
| 681 | |
| 682 | oid2in_addr (offset, len, &addr->prefix); |
| 683 | |
| 684 | offset += IN_ADDR_SIZE; |
| 685 | offsetlen -= IN_ADDR_SIZE; |
| 686 | |
| 687 | if (offsetlen > 0) |
| 688 | addr->prefixlen = *offset; |
| 689 | else |
| 690 | addr->prefixlen = len * 8; |
| 691 | |
| 692 | rn = bgp_node_get (bgp->rib[AFI_IP][SAFI_UNICAST], |
| 693 | (struct prefix *) addr); |
| 694 | |
| 695 | offset++; |
| 696 | offsetlen--; |
| 697 | } |
| 698 | |
| 699 | if (offsetlen > 0) |
| 700 | { |
| 701 | len = offsetlen; |
| 702 | if (len > IN_ADDR_SIZE) |
| 703 | len = IN_ADDR_SIZE; |
| 704 | |
| 705 | oid2in_addr (offset, len, &paddr); |
| 706 | } |
| 707 | else |
| 708 | paddr.s_addr = 0; |
| 709 | |
| 710 | if (! rn) |
| 711 | return NULL; |
| 712 | |
| 713 | do |
| 714 | { |
| 715 | min = NULL; |
| 716 | |
| 717 | for (binfo = rn->info; binfo; binfo = binfo->next) |
| 718 | { |
| 719 | if (binfo->peer->su.sin.sin_family == AF_INET |
| 720 | && ntohl (paddr.s_addr) |
| 721 | < ntohl (binfo->peer->su.sin.sin_addr.s_addr)) |
| 722 | { |
| 723 | if (min) |
| 724 | { |
| 725 | if (ntohl (binfo->peer->su.sin.sin_addr.s_addr) |
| 726 | < ntohl (min->peer->su.sin.sin_addr.s_addr)) |
| 727 | min = binfo; |
| 728 | } |
| 729 | else |
| 730 | min = binfo; |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | if (min) |
| 735 | { |
| 736 | *length = v->namelen + BGP_PATHATTR_ENTRY_OFFSET; |
| 737 | |
| 738 | offset = name + v->namelen; |
| 739 | oid_copy_addr (offset, &rn->p.u.prefix4, IN_ADDR_SIZE); |
| 740 | offset += IN_ADDR_SIZE; |
| 741 | *offset = rn->p.prefixlen; |
| 742 | offset++; |
| 743 | oid_copy_addr (offset, &min->peer->su.sin.sin_addr, |
| 744 | IN_ADDR_SIZE); |
| 745 | addr->prefix = rn->p.u.prefix4; |
| 746 | addr->prefixlen = rn->p.prefixlen; |
| 747 | |
| 748 | bgp_unlock_node (rn); |
| 749 | |
| 750 | return min; |
| 751 | } |
| 752 | |
| 753 | paddr.s_addr = 0; |
| 754 | } |
| 755 | while ((rn = bgp_route_next (rn)) != NULL); |
| 756 | } |
| 757 | return NULL; |
| 758 | } |
| 759 | |
Chris Caputo | 0be8dfb | 2009-06-02 18:40:07 +0100 | [diff] [blame] | 760 | static u_char * |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 761 | bgp4PathAttrTable (struct variable *v, oid name[], size_t *length, |
| 762 | int exact, size_t *var_len, WriteMethod **write_method) |
| 763 | { |
| 764 | struct bgp *bgp; |
| 765 | struct bgp_info *binfo; |
| 766 | struct prefix_ipv4 addr; |
| 767 | |
| 768 | bgp = bgp_get_default (); |
| 769 | if (! bgp) |
| 770 | return NULL; |
| 771 | |
Vincent Bernat | 8046ba6 | 2012-05-31 13:30:28 +0200 | [diff] [blame] | 772 | if (smux_header_table(v, name, length, exact, var_len, write_method) |
| 773 | == MATCH_FAILED) |
| 774 | return NULL; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 775 | memset (&addr, 0, sizeof (struct prefix_ipv4)); |
| 776 | |
| 777 | binfo = bgp4PathAttrLookup (v, name, length, bgp, &addr, exact); |
| 778 | if (! binfo) |
| 779 | return NULL; |
| 780 | |
| 781 | switch (v->magic) |
| 782 | { |
| 783 | case BGP4PATHATTRPEER: /* 1 */ |
| 784 | return SNMP_IPADDRESS (binfo->peer->su.sin.sin_addr); |
| 785 | break; |
| 786 | case BGP4PATHATTRIPADDRPREFIXLEN: /* 2 */ |
| 787 | return SNMP_INTEGER (addr.prefixlen); |
| 788 | break; |
| 789 | case BGP4PATHATTRIPADDRPREFIX: /* 3 */ |
| 790 | return SNMP_IPADDRESS (addr.prefix); |
| 791 | break; |
| 792 | case BGP4PATHATTRORIGIN: /* 4 */ |
| 793 | return SNMP_INTEGER (binfo->attr->origin); |
| 794 | break; |
| 795 | case BGP4PATHATTRASPATHSEGMENT: /* 5 */ |
paul | fe69a50 | 2005-09-10 16:55:02 +0000 | [diff] [blame] | 796 | return aspath_snmp_pathseg (binfo->attr->aspath, var_len); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 797 | break; |
| 798 | case BGP4PATHATTRNEXTHOP: /* 6 */ |
| 799 | return SNMP_IPADDRESS (binfo->attr->nexthop); |
| 800 | break; |
| 801 | case BGP4PATHATTRMULTIEXITDISC: /* 7 */ |
| 802 | return SNMP_INTEGER (binfo->attr->med); |
| 803 | break; |
| 804 | case BGP4PATHATTRLOCALPREF: /* 8 */ |
| 805 | return SNMP_INTEGER (binfo->attr->local_pref); |
| 806 | break; |
| 807 | case BGP4PATHATTRATOMICAGGREGATE: /* 9 */ |
| 808 | return SNMP_INTEGER (1); |
| 809 | break; |
| 810 | case BGP4PATHATTRAGGREGATORAS: /* 10 */ |
Paul Jakma | fb982c2 | 2007-05-04 20:15:47 +0000 | [diff] [blame] | 811 | if (binfo->attr->extra) |
| 812 | return SNMP_INTEGER (binfo->attr->extra->aggregator_as); |
| 813 | else |
| 814 | return SNMP_INTEGER (0); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 815 | break; |
| 816 | case BGP4PATHATTRAGGREGATORADDR: /* 11 */ |
Paul Jakma | fb982c2 | 2007-05-04 20:15:47 +0000 | [diff] [blame] | 817 | if (binfo->attr->extra) |
| 818 | return SNMP_IPADDRESS (binfo->attr->extra->aggregator_addr); |
| 819 | else |
| 820 | return SNMP_INTEGER (0); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 821 | break; |
| 822 | case BGP4PATHATTRCALCLOCALPREF: /* 12 */ |
| 823 | return SNMP_INTEGER (-1); |
| 824 | break; |
| 825 | case BGP4PATHATTRBEST: /* 13 */ |
| 826 | #define BGP4_PathAttrBest_false 1 |
| 827 | #define BGP4_PathAttrBest_true 2 |
| 828 | if (CHECK_FLAG (binfo->flags, BGP_INFO_SELECTED)) |
| 829 | return SNMP_INTEGER (BGP4_PathAttrBest_true); |
| 830 | else |
| 831 | return SNMP_INTEGER (BGP4_PathAttrBest_false); |
| 832 | break; |
| 833 | case BGP4PATHATTRUNKNOWN: /* 14 */ |
| 834 | *var_len = 0; |
| 835 | return NULL; |
| 836 | break; |
| 837 | } |
| 838 | return NULL; |
| 839 | } |
David Lamparter | 6b0655a | 2014-06-04 06:53:35 +0200 | [diff] [blame] | 840 | |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 841 | /* BGP Traps. */ |
| 842 | struct trap_object bgpTrapList[] = |
| 843 | { |
Vincent Bernat | b8cf46b | 2012-05-25 08:56:44 +0200 | [diff] [blame] | 844 | {3, {3, 1, BGPPEERLASTERROR}}, |
| 845 | {3, {3, 1, BGPPEERSTATE}} |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 846 | }; |
| 847 | |
| 848 | void |
| 849 | bgpTrapEstablished (struct peer *peer) |
| 850 | { |
| 851 | int ret; |
| 852 | struct in_addr addr; |
| 853 | oid index[sizeof (oid) * IN_ADDR_SIZE]; |
| 854 | |
| 855 | ret = inet_aton (peer->host, &addr); |
| 856 | if (ret == 0) |
| 857 | return; |
| 858 | |
| 859 | oid_copy_addr (index, &addr, IN_ADDR_SIZE); |
| 860 | |
Vincent Bernat | b7c0d06 | 2012-05-25 11:17:01 +0200 | [diff] [blame] | 861 | smux_trap (bgp_variables, sizeof bgp_variables / sizeof (struct variable), |
| 862 | bgp_trap_oid, sizeof bgp_trap_oid / sizeof (oid), |
| 863 | bgp_oid, sizeof bgp_oid / sizeof (oid), |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 864 | index, IN_ADDR_SIZE, |
| 865 | bgpTrapList, sizeof bgpTrapList / sizeof (struct trap_object), |
Vincent Bernat | 4b89e45 | 2012-05-24 21:22:01 +0200 | [diff] [blame] | 866 | BGPESTABLISHED); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 867 | } |
| 868 | |
| 869 | void |
| 870 | bgpTrapBackwardTransition (struct peer *peer) |
| 871 | { |
| 872 | int ret; |
| 873 | struct in_addr addr; |
| 874 | oid index[sizeof (oid) * IN_ADDR_SIZE]; |
| 875 | |
| 876 | ret = inet_aton (peer->host, &addr); |
| 877 | if (ret == 0) |
| 878 | return; |
| 879 | |
| 880 | oid_copy_addr (index, &addr, IN_ADDR_SIZE); |
| 881 | |
Vincent Bernat | b7c0d06 | 2012-05-25 11:17:01 +0200 | [diff] [blame] | 882 | smux_trap (bgp_variables, sizeof bgp_variables / sizeof (struct variable), |
| 883 | bgp_trap_oid, sizeof bgp_trap_oid / sizeof (oid), |
| 884 | bgp_oid, sizeof bgp_oid / sizeof (oid), |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 885 | index, IN_ADDR_SIZE, |
| 886 | bgpTrapList, sizeof bgpTrapList / sizeof (struct trap_object), |
Vincent Bernat | 4b89e45 | 2012-05-24 21:22:01 +0200 | [diff] [blame] | 887 | BGPBACKWARDTRANSITION); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 888 | } |
| 889 | |
| 890 | void |
Stephen Hemminger | 66e5cd8 | 2009-02-09 10:14:16 -0800 | [diff] [blame] | 891 | bgp_snmp_init (void) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 892 | { |
hasso | c75105a | 2004-10-13 10:33:26 +0000 | [diff] [blame] | 893 | smux_init (bm->master); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 894 | REGISTER_MIB("mibII/bgp", bgp_variables, variable, bgp_oid); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 895 | } |
| 896 | #endif /* HAVE_SNMP */ |