From 41367172d812354c05b11818346f0d49c2245aef Mon Sep 17 00:00:00 2001 From: Paul Jakma Date: Mon, 6 Aug 2007 15:24:51 +0000 Subject: [bgpd] Add support for AS_PATHLIMIT / draft-ietf-idr-as-pathlimit 2007-07-31 Paul Jakma * (general) Support for draft-ietf-idr-as-pathlimit-03. * bgp_attr.h: (struct attr) Add pathlimit struct bgp_attr.c: (attr_str) Add BGP_ATTR_AS_PATHLIMIT string. (attrhash_key_make) tally pathlimit too (attrhash_cmp) cmp pathlimit attr (bgp_attr_aspathlimit) New, parse AS_PATHLIMIT attr. (bgp_attr_parse) ditto (bgp_packet_attribute) Write out AS_PATHLIMIT when set (bgp_dump_routes_attr) ditto * bgp_route.h: (struct bgp_static) Add TTL field * bgp_route.c: (bgp_announce_check) Drop paths that are over their hop-count TTL before sending via EBGP. Mangle ASN in pathlimit for confeds/private as best we can. (bgp_static_update_{rsclient,main}) Add any configure pathlimit information. (bgp_pathlimit_update_parents) New, update atomic-aggr setting for parents of an aspathlimit'ed static. (bgp_static_set) Add TTL argument, for all the 'bgp network' commands. Call previous for TTL changed statics. (bgp_static_unset) Call pathlimit_update_parents. (various bgp network commands) Add 'pathlimit <0-255>' qualifier to all the various forms, bar route-map - which can set ttl itself. * bgp_routemap.c: (general) Add support for 'set pathlimit ttl' and 'match pathlimit as'. * doc/bgpd.texi: Document 'network ... pathlimit ' --- bgpd/bgp_route.c | 418 +++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 393 insertions(+), 25 deletions(-) (limited to 'bgpd/bgp_route.c') diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c index 1c0e6f1a..0f4da980 100644 --- a/bgpd/bgp_route.c +++ b/bgpd/bgp_route.c @@ -883,7 +883,20 @@ bgp_announce_check (struct bgp_info *ri, struct peer *peer, struct prefix *p, return 0; } } - + + /* AS-Pathlimit check */ + if (ri->attr->pathlimit.ttl && peer_sort (peer) == BGP_PEER_EBGP) + /* Our ASN has not yet been pre-pended, that's done in packet_attribute + * on output. Hence the test here is for >=. + */ + if (aspath_count_hops (ri->attr->aspath) >= ri->attr->pathlimit.ttl) + { + if (BGP_DEBUG (filter, FILTER)) + zlog_info ("%s [Update:SEND] suppressed, AS-Pathlimit TTL %u exceeded", + peer->host, ri->attr->pathlimit.ttl); + return 0; + } + /* For modify attribute, copy it to temporary structure. */ bgp_attr_dup (attr, ri->attr); @@ -988,6 +1001,39 @@ bgp_announce_check (struct bgp_info *ri, struct peer *peer, struct prefix *p, } #endif /* HAVE_IPV6 */ + /* AS-Pathlimit: Check ASN for private/confed */ + if (attr->pathlimit.ttl) + { + /* locally originated update */ + if (!attr->pathlimit.as) + attr->pathlimit.as = peer->local_as; + + /* if the AS_PATHLIMIT attribute is attached to a prefix by a + member of a confederation, then when the prefix is advertised outside + of the confederation boundary, then the AS number of the + confederation member inside of the AS_PATHLIMIT attribute should be + replaced by the confederation's AS number. */ + if (peer_sort (from) == BGP_PEER_CONFED + && peer_sort (peer) != BGP_PEER_CONFED) + attr->pathlimit.as = peer->local_as; + + /* Private ASN should be updated whenever announcement leaves + * private space. This is deliberately done after simple confed + * based update.. + */ + if (attr->pathlimit.as >= BGP_PRIVATE_AS_MIN + && attr->pathlimit.as <= BGP_PRIVATE_AS_MAX) + { + if (peer->local_as < BGP_PRIVATE_AS_MIN + || peer->local_as > BGP_PRIVATE_AS_MAX) + attr->pathlimit.as = peer->local_as; + /* Ours is private, try using theirs.. */ + else if (peer->as < BGP_PRIVATE_AS_MIN + || peer->local_as > BGP_PRIVATE_AS_MAX) + attr->pathlimit.as = peer->as; + } + } + /* If this is EBGP peer and remove-private-AS is set. */ if (peer_sort (peer) == BGP_PEER_EBGP && peer_af_flag_check (peer, afi, safi, PEER_FLAG_REMOVE_PRIVATE_AS) @@ -3151,7 +3197,18 @@ bgp_static_update_rsclient (struct peer *rsclient, struct prefix *p, attr.nexthop = bgp_static->igpnexthop; attr.med = bgp_static->igpmetric; attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_MULTI_EXIT_DISC); - + + if (bgp_static->ttl) + { + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_AS_PATHLIMIT); + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE); + attr.pathlimit.as = 0; + attr.pathlimit.ttl = bgp_static->ttl; + } + + if (bgp_static->atomic) + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE); + /* Apply network route-map for export to this rsclient. */ if (bgp_static->rmap.name) { @@ -3297,6 +3354,17 @@ bgp_static_update_main (struct bgp *bgp, struct prefix *p, attr.med = bgp_static->igpmetric; attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_MULTI_EXIT_DISC); + if (bgp_static->ttl) + { + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_AS_PATHLIMIT); + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE); + attr.pathlimit.as = 0; + attr.pathlimit.ttl = bgp_static->ttl; + } + + if (bgp_static->atomic) + attr.flag |= ATTR_FLAG_BIT (BGP_ATTR_ATOMIC_AGGREGATE); + /* Apply route-map. */ if (bgp_static->rmap.name) { @@ -3517,17 +3585,44 @@ bgp_static_withdraw_vpnv4 (struct bgp *bgp, struct prefix *p, u_int16_t afi, bgp_unlock_node (rn); } +static void +bgp_pathlimit_update_parents (struct bgp *bgp, struct bgp_node *rn, + int ttl_edge) +{ + struct bgp_node *parent = rn; + struct bgp_static *sp; + + /* Existing static changed TTL, search parents and adjust their atomic */ + while ((parent = parent->parent)) + if ((sp = parent->info)) + { + int sp_level = (sp->atomic ? 1 : 0); + ttl_edge ? sp->atomic++ : sp->atomic--; + + /* did we change state of parent whether atomic is set or not? */ + if (sp_level != (sp->atomic ? 1 : 0)) + { + bgp_static_update (bgp, &parent->p, sp, + rn->table->afi, rn->table->safi); + } + } +} + /* Configure static BGP network. When user don't run zebra, static route should be installed as valid. */ static int bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str, - u_int16_t afi, u_char safi, const char *rmap, int backdoor) + u_int16_t afi, u_char safi, const char *rmap, int backdoor, + u_char ttl) { int ret; struct prefix p; struct bgp_static *bgp_static; struct bgp_node *rn; - int need_update = 0; + u_char need_update = 0; + u_char ttl_change = 0; + u_char ttl_edge = (ttl ? 1 : 0); + u_char new = 0; /* Convert IP prefix string to struct prefix. */ ret = str2prefix (ip_str, &p); @@ -3556,10 +3651,22 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str, bgp_static = rn->info; /* Check previous routes are installed into BGP. */ - if (! bgp_static->backdoor && bgp_static->valid) - need_update = 1; - + if (bgp_static->valid) + { + if (bgp_static->backdoor != backdoor + || bgp_static->ttl != ttl) + need_update = 1; + } + + /* need to catch TTL set/unset transitions for handling of + * ATOMIC_AGGREGATE + */ + if ((bgp_static->ttl ? 1 : 0) != ttl_edge) + ttl_change = 1; + bgp_static->backdoor = backdoor; + bgp_static->ttl = ttl; + if (rmap) { if (bgp_static->rmap.name) @@ -3585,6 +3692,10 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str, bgp_static->valid = 0; bgp_static->igpmetric = 0; bgp_static->igpnexthop.s_addr = 0; + bgp_static->ttl = ttl; + ttl_change = ttl_edge; + new = 1; + if (rmap) { if (bgp_static->rmap.name) @@ -3595,6 +3706,39 @@ bgp_static_set (struct vty *vty, struct bgp *bgp, const char *ip_str, rn->info = bgp_static; } + /* ".. sites that choose to advertise the + * AS_PATHLIMIT path attribute SHOULD advertise the ATOMIC_AGGREGATE on + * all less specific covering prefixes as well as the more specific + * prefixes." + * + * So: + * Prefix that has just had pathlimit set/unset: + * - Must bump ATOMIC refcount on all parents. + * + * To catch less specific prefixes: + * - Must search children for ones with TTL, bump atomic refcount + * (we dont care if we're deleting a less specific prefix..) + */ + if (ttl_change) + { + /* Existing static changed TTL, search parents and adjust their atomic */ + bgp_pathlimit_update_parents (bgp, rn, ttl_edge); + } + + if (new) + { + struct bgp_node *child; + struct bgp_static *sc; + + /* New static, search children and bump this statics atomic.. */ + child = bgp_lock_node (rn); /* route_next_until unlocks it.. */ + while ((child = bgp_route_next_until (child, rn))) + { + if ((sc = child->info) && sc->ttl) + bgp_static->atomic++; + } + } + /* If BGP scan is not enabled, we should install this route here. */ if (! bgp_flag_check (bgp, BGP_FLAG_IMPORT_CHECK)) { @@ -3647,7 +3791,10 @@ bgp_static_unset (struct vty *vty, struct bgp *bgp, const char *ip_str, } bgp_static = rn->info; - + + /* decrement atomic in parents, see bgp_static_set */ + bgp_pathlimit_update_parents (bgp, rn, 0); + /* Update BGP RIB. */ if (! bgp_static->backdoor) bgp_static_withdraw (bgp, &p, afi, safi); @@ -3844,10 +3991,23 @@ DEFUN (bgp_network, "Specify a network to announce via BGP\n" "IP prefix /, e.g., 35.0.0.0/8\n") { + u_char ttl = 0; + + if (argc == 2) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255); + return bgp_static_set (vty, vty->index, argv[0], - AFI_IP, bgp_node_safi (vty), NULL, 0); + AFI_IP, bgp_node_safi (vty), NULL, 0, ttl); } +ALIAS (bgp_network, + bgp_network_ttl_cmd, + "network A.B.C.D/M pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "IP prefix /, e.g., 35.0.0.0/8\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (bgp_network_route_map, bgp_network_route_map_cmd, "network A.B.C.D/M route-map WORD", @@ -3857,7 +4017,7 @@ DEFUN (bgp_network_route_map, "Name of the route map\n") { return bgp_static_set (vty, vty->index, argv[0], - AFI_IP, bgp_node_safi (vty), argv[1], 0); + AFI_IP, bgp_node_safi (vty), argv[1], 0, 0); } DEFUN (bgp_network_backdoor, @@ -3867,9 +4027,24 @@ DEFUN (bgp_network_backdoor, "IP prefix /, e.g., 35.0.0.0/8\n" "Specify a BGP backdoor route\n") { - return bgp_static_set (vty, vty->index, argv[0], AFI_IP, SAFI_UNICAST, NULL, 1); + u_char ttl = 0; + + if (argc == 2) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255); + + return bgp_static_set (vty, vty->index, argv[0], AFI_IP, SAFI_UNICAST, + NULL, 1, ttl); } +ALIAS (bgp_network_backdoor, + bgp_network_backdoor_ttl_cmd, + "network A.B.C.D/M backdoor pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "IP prefix /, e.g., 35.0.0.0/8\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (bgp_network_mask, bgp_network_mask_cmd, "network A.B.C.D mask A.B.C.D", @@ -3880,7 +4055,11 @@ DEFUN (bgp_network_mask, { int ret; char prefix_str[BUFSIZ]; - + u_char ttl = 0; + + if (argc == 3) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[2], 1, 255); + ret = netmask_str2prefix_str (argv[0], argv[1], prefix_str); if (! ret) { @@ -3889,9 +4068,19 @@ DEFUN (bgp_network_mask, } return bgp_static_set (vty, vty->index, prefix_str, - AFI_IP, bgp_node_safi (vty), NULL, 0); + AFI_IP, bgp_node_safi (vty), NULL, 0, ttl); } +ALIAS (bgp_network_mask, + bgp_network_mask_ttl_cmd, + "network A.B.C.D mask A.B.C.D pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "Network number\n" + "Network mask\n" + "Network mask\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (bgp_network_mask_route_map, bgp_network_mask_route_map_cmd, "network A.B.C.D mask A.B.C.D route-map WORD", @@ -3904,7 +4093,7 @@ DEFUN (bgp_network_mask_route_map, { int ret; char prefix_str[BUFSIZ]; - + ret = netmask_str2prefix_str (argv[0], argv[1], prefix_str); if (! ret) { @@ -3913,7 +4102,7 @@ DEFUN (bgp_network_mask_route_map, } return bgp_static_set (vty, vty->index, prefix_str, - AFI_IP, bgp_node_safi (vty), argv[2], 0); + AFI_IP, bgp_node_safi (vty), argv[2], 0, 0); } DEFUN (bgp_network_mask_backdoor, @@ -3927,6 +4116,10 @@ DEFUN (bgp_network_mask_backdoor, { int ret; char prefix_str[BUFSIZ]; + u_char ttl = 0; + + if (argc == 3) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[2], 1, 255); ret = netmask_str2prefix_str (argv[0], argv[1], prefix_str); if (! ret) @@ -3935,9 +4128,21 @@ DEFUN (bgp_network_mask_backdoor, return CMD_WARNING; } - return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST, NULL, 1); + return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST, + NULL, 1, ttl); } +ALIAS (bgp_network_mask_backdoor, + bgp_network_mask_backdoor_ttl_cmd, + "network A.B.C.D mask A.B.C.D backdoor pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "Network number\n" + "Network mask\n" + "Network mask\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (bgp_network_mask_natural, bgp_network_mask_natural_cmd, "network A.B.C.D", @@ -3946,6 +4151,10 @@ DEFUN (bgp_network_mask_natural, { int ret; char prefix_str[BUFSIZ]; + u_char ttl = 0; + + if (argc == 2) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255); ret = netmask_str2prefix_str (argv[0], NULL, prefix_str); if (! ret) @@ -3955,9 +4164,17 @@ DEFUN (bgp_network_mask_natural, } return bgp_static_set (vty, vty->index, prefix_str, - AFI_IP, bgp_node_safi (vty), NULL, 0); + AFI_IP, bgp_node_safi (vty), NULL, 0, ttl); } +ALIAS (bgp_network_mask_natural, + bgp_network_mask_natural_ttl_cmd, + "network A.B.C.D pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "Network number\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (bgp_network_mask_natural_route_map, bgp_network_mask_natural_route_map_cmd, "network A.B.C.D route-map WORD", @@ -3977,7 +4194,7 @@ DEFUN (bgp_network_mask_natural_route_map, } return bgp_static_set (vty, vty->index, prefix_str, - AFI_IP, bgp_node_safi (vty), argv[1], 0); + AFI_IP, bgp_node_safi (vty), argv[1], 0, 0); } DEFUN (bgp_network_mask_natural_backdoor, @@ -3989,6 +4206,10 @@ DEFUN (bgp_network_mask_natural_backdoor, { int ret; char prefix_str[BUFSIZ]; + u_char ttl = 0; + + if (argc == 2) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255); ret = netmask_str2prefix_str (argv[0], NULL, prefix_str); if (! ret) @@ -3997,9 +4218,19 @@ DEFUN (bgp_network_mask_natural_backdoor, return CMD_WARNING; } - return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST, NULL, 1); + return bgp_static_set (vty, vty->index, prefix_str, AFI_IP, SAFI_UNICAST, + NULL, 1, ttl); } +ALIAS (bgp_network_mask_natural_backdoor, + bgp_network_mask_natural_backdoor_ttl_cmd, + "network A.B.C.D backdoor pathlimit (1-255>", + "Specify a network to announce via BGP\n" + "Network number\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (no_bgp_network, no_bgp_network_cmd, "no network A.B.C.D/M", @@ -4011,6 +4242,15 @@ DEFUN (no_bgp_network, bgp_node_safi (vty)); } +ALIAS (no_bgp_network, + no_bgp_network_ttl_cmd, + "no network A.B.C.D/M pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "IP prefix /, e.g., 35.0.0.0/8\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + ALIAS (no_bgp_network, no_bgp_network_route_map_cmd, "no network A.B.C.D/M route-map WORD", @@ -4028,6 +4268,16 @@ ALIAS (no_bgp_network, "IP prefix /, e.g., 35.0.0.0/8\n" "Specify a BGP backdoor route\n") +ALIAS (no_bgp_network, + no_bgp_network_backdoor_ttl_cmd, + "no network A.B.C.D/M backdoor pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "IP prefix /, e.g., 35.0.0.0/8\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (no_bgp_network_mask, no_bgp_network_mask_cmd, "no network A.B.C.D mask A.B.C.D", @@ -4051,6 +4301,17 @@ DEFUN (no_bgp_network_mask, bgp_node_safi (vty)); } +ALIAS (no_bgp_network, + no_bgp_network_mask_ttl_cmd, + "no network A.B.C.D mask A.B.C.D pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "Network number\n" + "Network mask\n" + "Network mask\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + ALIAS (no_bgp_network_mask, no_bgp_network_mask_route_map_cmd, "no network A.B.C.D mask A.B.C.D route-map WORD", @@ -4072,6 +4333,18 @@ ALIAS (no_bgp_network_mask, "Network mask\n" "Specify a BGP backdoor route\n") +ALIAS (no_bgp_network_mask, + no_bgp_network_mask_backdoor_ttl_cmd, + "no network A.B.C.D mask A.B.C.D backdoor pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "Network number\n" + "Network mask\n" + "Network mask\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (no_bgp_network_mask_natural, no_bgp_network_mask_natural_cmd, "no network A.B.C.D", @@ -4110,6 +4383,25 @@ ALIAS (no_bgp_network_mask_natural, "Network number\n" "Specify a BGP backdoor route\n") +ALIAS (no_bgp_network_mask_natural, + no_bgp_network_mask_natural_ttl_cmd, + "no network A.B.C.D pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "Network number\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + +ALIAS (no_bgp_network_mask_natural, + no_bgp_network_mask_natural_backdoor_ttl_cmd, + "no network A.B.C.D backdoor pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "Network number\n" + "Specify a BGP backdoor route\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + #ifdef HAVE_IPV6 DEFUN (ipv6_bgp_network, ipv6_bgp_network_cmd, @@ -4117,9 +4409,23 @@ DEFUN (ipv6_bgp_network, "Specify a network to announce via BGP\n" "IPv6 prefix /\n") { - return bgp_static_set (vty, vty->index, argv[0], AFI_IP6, SAFI_UNICAST, NULL, 0); + u_char ttl = 0; + + if (argc == 2) + VTY_GET_INTEGER_RANGE ("Pathlimit TTL", ttl, argv[1], 1, 255); + + return bgp_static_set (vty, vty->index, argv[0], AFI_IP6, SAFI_UNICAST, + NULL, 0, ttl); } +ALIAS (ipv6_bgp_network, + ipv6_bgp_network_ttl_cmd, + "network X:X::X:X/M pathlimit <0-255>", + "Specify a network to announce via BGP\n" + "IPv6 prefix /\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + DEFUN (ipv6_bgp_network_route_map, ipv6_bgp_network_route_map_cmd, "network X:X::X:X/M route-map WORD", @@ -4129,7 +4435,7 @@ DEFUN (ipv6_bgp_network_route_map, "Name of the route map\n") { return bgp_static_set (vty, vty->index, argv[0], AFI_IP6, - bgp_node_safi (vty), argv[1], 0); + bgp_node_safi (vty), argv[1], 0, 0); } DEFUN (no_ipv6_bgp_network, @@ -4151,6 +4457,15 @@ ALIAS (no_ipv6_bgp_network, "Route-map to modify the attributes\n" "Name of the route map\n") +ALIAS (no_ipv6_bgp_network, + no_ipv6_bgp_network_ttl_cmd, + "no network X:X::X:X/M pathlimit <0-255>", + NO_STR + "Specify a network to announce via BGP\n" + "IPv6 prefix /\n" + "AS-Path hopcount limit attribute\n" + "AS-Pathlimit TTL, in number of AS-Path hops\n") + ALIAS (ipv6_bgp_network, old_ipv6_bgp_network_cmd, "ipv6 bgp network X:X::X:X/M", @@ -5777,7 +6092,18 @@ route_vty_out_detail (struct vty *vty, struct bgp *bgp, struct prefix *p, } vty_out (vty, "%s", VTY_NEWLINE); } - + + /* 7: AS Pathlimit */ + if (attr->flag & ATTR_FLAG_BIT(BGP_ATTR_AS_PATHLIMIT)) + { + + vty_out (vty, " AS-Pathlimit: %u", + attr->pathlimit.ttl); + if (attr->pathlimit.as) + vty_out (vty, " (%u)", attr->pathlimit.as); + vty_out (vty, "%s", VTY_NEWLINE); + } + if (binfo->extra && binfo->extra->damp_info) bgp_damp_info_vty (vty, binfo); @@ -11166,8 +11492,13 @@ bgp_config_write_network (struct vty *vty, struct bgp *bgp, if (bgp_static->rmap.name) vty_out (vty, " route-map %s", bgp_static->rmap.name); - else if (bgp_static->backdoor) - vty_out (vty, " backdoor"); + else + { + if (bgp_static->backdoor) + vty_out (vty, " backdoor"); + if (bgp_static->ttl) + vty_out (vty, " pathlimit %u", bgp_static->ttl); + } vty_out (vty, "%s", VTY_NEWLINE); } @@ -11255,6 +11586,12 @@ bgp_route_init () install_element (BGP_NODE, &bgp_network_backdoor_cmd); install_element (BGP_NODE, &bgp_network_mask_backdoor_cmd); install_element (BGP_NODE, &bgp_network_mask_natural_backdoor_cmd); + install_element (BGP_NODE, &bgp_network_ttl_cmd); + install_element (BGP_NODE, &bgp_network_mask_ttl_cmd); + install_element (BGP_NODE, &bgp_network_mask_natural_ttl_cmd); + install_element (BGP_NODE, &bgp_network_backdoor_ttl_cmd); + install_element (BGP_NODE, &bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_NODE, &no_bgp_network_cmd); install_element (BGP_NODE, &no_bgp_network_mask_cmd); install_element (BGP_NODE, &no_bgp_network_mask_natural_cmd); @@ -11264,6 +11601,12 @@ bgp_route_init () install_element (BGP_NODE, &no_bgp_network_backdoor_cmd); install_element (BGP_NODE, &no_bgp_network_mask_backdoor_cmd); install_element (BGP_NODE, &no_bgp_network_mask_natural_backdoor_cmd); + install_element (BGP_NODE, &no_bgp_network_ttl_cmd); + install_element (BGP_NODE, &no_bgp_network_mask_ttl_cmd); + install_element (BGP_NODE, &no_bgp_network_mask_natural_ttl_cmd); + install_element (BGP_NODE, &no_bgp_network_backdoor_ttl_cmd); + install_element (BGP_NODE, &no_bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_NODE, &aggregate_address_cmd); install_element (BGP_NODE, &aggregate_address_mask_cmd); @@ -11293,12 +11636,23 @@ bgp_route_init () install_element (BGP_IPV4_NODE, &bgp_network_route_map_cmd); install_element (BGP_IPV4_NODE, &bgp_network_mask_route_map_cmd); install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_route_map_cmd); - install_element (BGP_IPV4_NODE, &no_bgp_network_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_ttl_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_mask_ttl_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_ttl_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_backdoor_ttl_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_IPV4_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_mask_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_route_map_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_mask_route_map_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_route_map_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_ttl_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_mask_ttl_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_ttl_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_backdoor_ttl_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_IPV4_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_cmd); install_element (BGP_IPV4_NODE, &aggregate_address_cmd); install_element (BGP_IPV4_NODE, &aggregate_address_mask_cmd); install_element (BGP_IPV4_NODE, &aggregate_address_summary_only_cmd); @@ -11327,12 +11681,24 @@ bgp_route_init () install_element (BGP_IPV4M_NODE, &bgp_network_route_map_cmd); install_element (BGP_IPV4M_NODE, &bgp_network_mask_route_map_cmd); install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_route_map_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_ttl_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_mask_ttl_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_ttl_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_backdoor_ttl_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_IPV4M_NODE, &bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_route_map_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_route_map_cmd); install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_route_map_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_ttl_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_ttl_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_ttl_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_backdoor_ttl_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_backdoor_ttl_cmd); + install_element (BGP_IPV4M_NODE, &no_bgp_network_mask_natural_backdoor_ttl_cmd); install_element (BGP_IPV4_NODE, &no_bgp_network_cmd); install_element (BGP_IPV4M_NODE, &aggregate_address_cmd); install_element (BGP_IPV4M_NODE, &aggregate_address_mask_cmd); install_element (BGP_IPV4M_NODE, &aggregate_address_summary_only_cmd); @@ -11518,8 +11884,10 @@ bgp_route_init () /* New config IPv6 BGP commands. */ install_element (BGP_IPV6_NODE, &ipv6_bgp_network_cmd); install_element (BGP_IPV6_NODE, &ipv6_bgp_network_route_map_cmd); + install_element (BGP_IPV6_NODE, &ipv6_bgp_network_ttl_cmd); install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_cmd); install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_route_map_cmd); + install_element (BGP_IPV6_NODE, &no_ipv6_bgp_network_ttl_cmd); install_element (BGP_IPV6_NODE, &ipv6_aggregate_address_cmd); install_element (BGP_IPV6_NODE, &ipv6_aggregate_address_summary_only_cmd); -- cgit v1.2.1