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|
/*
* 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, *last_srt;
static struct f_inst **this_srt_last_cmd;
static void
static_route_finish(void)
{ }
CF_DECLS
CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, REJECT, PROHIBIT, PREFERENCE, CHECK, LINK)
CF_KEYWORDS(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);
static_init_config(STATIC_CFG);
};
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 ';' { STATIC_CFG->igp_table = $4; }
| static_proto stat_route stat_route_opt_list ';' { static_route_finish(); }
;
stat_nexthop_via: VIA
{
if (last_srt)
{
last_srt = (last_srt->mp_next = cfg_allocz(sizeof(struct static_route)));
last_srt->net = this_srt->net;
}
else
{
last_srt = this_srt;
rem_node(&this_srt->n);
}
last_srt->mp_head = this_srt;
last_srt->dest = RTD_UNICAST;
};
stat_nexthop_ident:
stat_nexthop_via ipa ipa_scope {
last_srt->via = $2;
last_srt->iface = $3;
add_tail(&STATIC_CFG->neigh_routes, &last_srt->n);
}
| stat_nexthop_via TEXT {
last_srt->via = IPA_NONE;
last_srt->if_name = $2;
add_tail(&STATIC_CFG->iface_routes, &last_srt->n);
}
| stat_nexthop_ident MPLS label_stack {
last_srt->label_count = $3[0];
last_srt->label_stack = &($3[1]);
}
| stat_nexthop_ident WEIGHT expr {
last_srt->weight = $3 - 1;
if (($3<1) || ($3>256)) cf_error("Weight must be in range 1-256");
}
| stat_nexthop_ident BFD bool { last_srt->use_bfd = $3; cf_check_bfd($3); }
;
stat_nexthop:
stat_nexthop_ident
| stat_nexthop stat_nexthop_ident
;
stat_route0: ROUTE net_any {
this_srt = cfg_allocz(sizeof(struct static_route));
add_tail(&STATIC_CFG->other_routes, &this_srt->n);
this_srt->net = $2;
this_srt_last_cmd = &(this_srt->cmds);
this_srt->mp_next = NULL;
last_srt = NULL;
}
;
stat_route:
stat_route0 stat_nexthop
| 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->label_count = $5[0];
this_srt->label_stack = &($5[1]);
}
| 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
|
