ffb38dfb8b
When recursive routes with hybrid next hops (e.g. IPv6 route with IPv4 next hop) are allowed, we need both IPv4 and IPv6 IGP tables.
149 lines
3.4 KiB
Text
149 lines
3.4 KiB
Text
/*
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* BIRD -- Static Protocol Configuration
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*
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* (c) 1998--1999 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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CF_HDR
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#include "proto/static/static.h"
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CF_DEFINES
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#define STATIC_CFG ((struct static_config *) this_proto)
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static struct static_route *this_srt, *this_snh;
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static struct f_inst **this_srt_last_cmd;
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static struct static_route *
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static_nexthop_new(void)
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{
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struct static_route *nh = this_srt;
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if (this_snh)
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{
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/* Additional next hop */
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nh = cfg_allocz(sizeof(struct static_route));
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nh->net = this_srt->net;
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this_snh->mp_next = nh;
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}
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nh->dest = RTD_UNICAST;
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nh->mp_head = this_srt;
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return nh;
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};
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static void
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static_route_finish(void)
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{ }
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CF_DECLS
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CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, REJECT, PROHIBIT, PREFERENCE, CHECK, LINK)
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CF_KEYWORDS(WEIGHT, RECURSIVE, IGP, TABLE, BLACKHOLE, UNREACHABLE, BFD, MPLS)
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CF_GRAMMAR
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CF_ADDTO(proto, static_proto '}')
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static_proto_start: proto_start STATIC
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{
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this_proto = proto_config_new(&proto_static, $1);
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init_list(&STATIC_CFG->routes);
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};
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static_proto:
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static_proto_start proto_name '{'
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| static_proto proto_item ';'
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| static_proto proto_channel ';' { this_proto->net_type = $2->net_type; }
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| static_proto CHECK LINK bool ';' { STATIC_CFG->check_link = $4; }
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| static_proto IGP TABLE rtable ';' {
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if ($4->addr_type == NET_IP4)
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STATIC_CFG->igp_table_ip4 = $4;
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else if ($4->addr_type == NET_IP6)
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STATIC_CFG->igp_table_ip6 = $4;
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else
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cf_error("Incompatible IGP table type");
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}
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| static_proto stat_route stat_route_opt_list ';' { static_route_finish(); }
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;
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stat_nexthop:
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VIA ipa ipa_scope {
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this_snh = static_nexthop_new();
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this_snh->via = $2;
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this_snh->iface = $3;
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}
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| VIA TEXT {
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this_snh = static_nexthop_new();
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this_snh->via = IPA_NONE;
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this_snh->iface = if_get_by_name($2);
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}
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| stat_nexthop MPLS label_stack {
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this_snh->mls = $3;
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}
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| stat_nexthop WEIGHT expr {
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this_snh->weight = $3 - 1;
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if (($3<1) || ($3>256)) cf_error("Weight must be in range 1-256");
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}
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| stat_nexthop BFD bool {
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this_snh->use_bfd = $3; cf_check_bfd($3);
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}
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;
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stat_nexthops:
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stat_nexthop
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| stat_nexthops stat_nexthop
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;
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stat_route0: ROUTE net_any {
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this_srt = cfg_allocz(sizeof(struct static_route));
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add_tail(&STATIC_CFG->routes, &this_srt->n);
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this_srt->net = $2;
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this_srt_last_cmd = &(this_srt->cmds);
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this_srt->mp_next = NULL;
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this_snh = NULL;
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}
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;
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stat_route:
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stat_route0 stat_nexthops
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| stat_route0 RECURSIVE ipa {
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this_srt->dest = RTDX_RECURSIVE;
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this_srt->via = $3;
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}
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| stat_route0 RECURSIVE ipa MPLS label_stack {
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this_srt->dest = RTDX_RECURSIVE;
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this_srt->via = $3;
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this_srt->mls = $5;
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}
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| stat_route0 DROP { this_srt->dest = RTD_BLACKHOLE; }
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| stat_route0 REJECT { this_srt->dest = RTD_UNREACHABLE; }
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| stat_route0 BLACKHOLE { this_srt->dest = RTD_BLACKHOLE; }
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| stat_route0 UNREACHABLE { this_srt->dest = RTD_UNREACHABLE; }
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| stat_route0 PROHIBIT { this_srt->dest = RTD_PROHIBIT; }
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;
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stat_route_item:
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cmd { *this_srt_last_cmd = $1; this_srt_last_cmd = &($1->next); }
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;
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stat_route_opts:
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/* empty */
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| stat_route_opts stat_route_item
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;
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stat_route_opt_list:
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/* empty */
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| '{' stat_route_opts '}'
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;
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CF_CLI(SHOW STATIC, optsym, [<name>], [[Show details of static protocol]])
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{ static_show(proto_get_named($3, &proto_static)); } ;
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CF_CODE
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CF_END
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