diff options
Diffstat (limited to 'bgpd/bgp_routemap.c')
| -rw-r--r-- | bgpd/bgp_routemap.c | 169 |
1 files changed, 168 insertions, 1 deletions
diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c index 6a44c479..305d6796 100644 --- a/bgpd/bgp_routemap.c +++ b/bgpd/bgp_routemap.c @@ -87,14 +87,106 @@ o Cisco route-map origin : Done tag : (This will not be implemented by bgpd) weight : Done + pathlimit : Done o Local extention set ipv6 next-hop global: Done set ipv6 next-hop local : Done + set pathlimit ttl : Done + match pathlimit as : Done */ +/* Compiles either AS or TTL argument. It is amused the VTY code + * has already range-checked the values to be suitable as TTL or ASN + */ +static void * +route_pathlimit_compile (const char *arg) +{ + unsigned long tmp; + u_int32_t *val; + char *endptr = NULL; + + /* TTL or AS value shoud be integer. */ + if (! all_digit (arg)) + return NULL; + + tmp = strtoul (arg, &endptr, 10); + if (*endptr != '\0' || tmp == ULONG_MAX || tmp > UINT32_MAX) + return NULL; + + if (!(val = XMALLOC (MTYPE_ROUTE_MAP_COMPILED, sizeof (u_int32_t)))) + return NULL; + + *val = tmp; + + return val; +} + +static void +route_pathlimit_free (void *rule) +{ + XFREE (MTYPE_ROUTE_MAP_COMPILED, rule); +} + +static route_map_result_t +route_match_pathlimit_as (void *rule, struct prefix *prefix, route_map_object_t type, + void *object) +{ + struct bgp_info *info = object; + struct attr *attr = info->attr; + uint32_t as = *(uint32_t *)rule; + + if (type != RMAP_BGP) + return RMAP_NOMATCH; + + if (!attr->pathlimit.as) + return RMAP_NOMATCH; + + if (as == attr->pathlimit.as) + return RMAP_MATCH; + + return RMAP_NOMATCH; +} + +/* 'match pathlimit as' */ +struct route_map_rule_cmd route_match_pathlimit_as_cmd = +{ + "pathlimit as", + route_match_pathlimit_as, + route_pathlimit_compile, + route_pathlimit_free +}; + +/* Set pathlimit TTL. */ +static route_map_result_t +route_set_pathlimit_ttl (void *rule, struct prefix *prefix, + route_map_object_t type, void *object) +{ + struct bgp_info *info = object; + struct attr *attr = info->attr; + u_char ttl = *(uint32_t *)rule; + + if (type == RMAP_BGP) + { + attr->flag |= ATTR_FLAG_BIT (BGP_ATTR_AS_PATHLIMIT); + attr->pathlimit.ttl = ttl; + attr->pathlimit.as = 0; + } + + return RMAP_OKAY; +} + +/* Set local preference rule structure. */ +struct route_map_rule_cmd route_set_pathlimit_ttl_cmd = +{ + "pathlimit ttl", + route_set_pathlimit_ttl, + route_pathlimit_compile, + route_pathlimit_free, +}; + /* 'match peer (A.B.C.D|X:X::X:X)' */ /* Compares the peer specified in the 'match peer' clause with the peer @@ -3538,6 +3630,70 @@ ALIAS (no_set_originator_id, "BGP originator ID attribute\n" "IP address of originator\n") +DEFUN (set_pathlimit_ttl, + set_pathlimit_ttl_cmd, + "set pathlimit ttl <1-255>", + SET_STR + "BGP AS-Pathlimit attribute\n" + "Set AS-Path Hop-count TTL\n") +{ + return bgp_route_set_add (vty, vty->index, "pathlimit ttl", argv[0]); +} + +DEFUN (no_set_pathlimit_ttl, + no_set_pathlimit_ttl_cmd, + "no set pathlimit ttl", + NO_STR + SET_STR + "BGP AS-Pathlimit attribute\n" + "Set AS-Path Hop-count TTL\n") +{ + if (argc == 0) + return bgp_route_set_delete (vty, vty->index, "pathlimit ttl", NULL); + + return bgp_route_set_delete (vty, vty->index, "pathlimit ttl", argv[0]); +} + +ALIAS (no_set_pathlimit_ttl, + no_set_pathlimit_ttl_val_cmd, + "no set pathlimit ttl <1-255>", + NO_STR + MATCH_STR + "BGP AS-Pathlimit attribute\n" + "Set AS-Path Hop-count TTL\n") + +DEFUN (match_pathlimit_as, + match_pathlimit_as_cmd, + "match pathlimit as <1-65535>", + MATCH_STR + "BGP AS-Pathlimit attribute\n" + "Match Pathlimit AS number\n") +{ + return bgp_route_match_add (vty, vty->index, "pathlimit as", argv[0]); +} + +DEFUN (no_match_pathlimit_as, + no_match_pathlimit_as_cmd, + "no match pathlimit as", + NO_STR + MATCH_STR + "BGP AS-Pathlimit attribute\n" + "Match Pathlimit AS number\n") +{ + if (argc == 0) + return bgp_route_match_delete (vty, vty->index, "pathlimit as", NULL); + + return bgp_route_match_delete (vty, vty->index, "pathlimit as", argv[0]); +} + +ALIAS (no_match_pathlimit_as, + no_match_pathlimit_as_val_cmd, + "no match pathlimit as <1-65535>", + NO_STR + MATCH_STR + "BGP AS-Pathlimit attribute\n" + "Match Pathlimit ASN\n") + /* Initialization of route map. */ void @@ -3671,7 +3827,7 @@ bgp_route_map_init (void) route_map_install_match (&route_match_ipv6_address_prefix_list_cmd); route_map_install_set (&route_set_ipv6_nexthop_global_cmd); route_map_install_set (&route_set_ipv6_nexthop_local_cmd); - + install_element (RMAP_NODE, &match_ipv6_address_cmd); install_element (RMAP_NODE, &no_match_ipv6_address_cmd); install_element (RMAP_NODE, &match_ipv6_next_hop_cmd); @@ -3685,4 +3841,15 @@ bgp_route_map_init (void) install_element (RMAP_NODE, &no_set_ipv6_nexthop_local_cmd); install_element (RMAP_NODE, &no_set_ipv6_nexthop_local_val_cmd); #endif /* HAVE_IPV6 */ + + /* AS-Pathlimit */ + route_map_install_match (&route_match_pathlimit_as_cmd); + route_map_install_set (&route_set_pathlimit_ttl_cmd); + + install_element (RMAP_NODE, &set_pathlimit_ttl_cmd); + install_element (RMAP_NODE, &no_set_pathlimit_ttl_cmd); + install_element (RMAP_NODE, &no_set_pathlimit_ttl_val_cmd); + install_element (RMAP_NODE, &match_pathlimit_as_cmd); + install_element (RMAP_NODE, &no_match_pathlimit_as_cmd); + install_element (RMAP_NODE, &no_match_pathlimit_as_val_cmd); } |