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