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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, *this_srt_nh, *last_srt_nh;
static struct f_inst **this_srt_last_cmd;
static void
static_route_finish(void)
{
struct static_route *r;
/* Update undefined use_bfd entries in multipath nexthops */
if (this_srt->dest == RTD_MULTIPATH)
for (r = this_srt->mp_next; r; r = r->mp_next)
if (r->use_bfd < 0)
r->use_bfd = this_srt->use_bfd;
}
CF_DECLS
CF_KEYWORDS(STATIC, ROUTE, VIA, DROP, REJECT, PROHIBIT, PREFERENCE, CHECK, LINK)
CF_KEYWORDS(MULTIPATH, WEIGHT, RECURSIVE, IGP, TABLE, BLACKHOLE, UNREACHABLE, BFD)
CF_GRAMMAR
CF_ADDTO(proto, static_proto '}')
static_proto_start: proto_start STATIC {
this_proto = proto_config_new(&proto_static, $1);
static_init_config((struct static_config *) this_proto);
}
;
static_proto:
static_proto_start proto_name '{'
| static_proto proto_item ';'
| 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_route0: ROUTE prefix {
this_srt = cfg_allocz(sizeof(struct static_route));
add_tail(&STATIC_CFG->other_routes, &this_srt->n);
this_srt->net = $2.addr;
this_srt->masklen = $2.len;
this_srt_last_cmd = &(this_srt->cmds);
}
;
stat_multipath1:
VIA ipa ipa_scope {
last_srt_nh = this_srt_nh;
this_srt_nh = cfg_allocz(sizeof(struct static_route));
this_srt_nh->dest = RTD_NONE;
this_srt_nh->via = $2;
this_srt_nh->via_if = $3;
this_srt_nh->if_name = (void *) this_srt; /* really */
this_srt_nh->use_bfd = -1; /* undefined */
}
| stat_multipath1 WEIGHT expr {
this_srt_nh->masklen = $3 - 1; /* really */
if (($3<1) || ($3>256)) cf_error("Weight must be in range 1-256");
}
| stat_multipath1 BFD bool {
this_srt_nh->use_bfd = $3; cf_check_bfd($3);
}
;
stat_multipath:
stat_multipath1 { this_srt->mp_next = this_srt_nh; }
| stat_multipath stat_multipath1 { last_srt_nh->mp_next = this_srt_nh; }
;
stat_route:
stat_route0 VIA ipa ipa_scope {
this_srt->dest = RTD_ROUTER;
this_srt->via = $3;
this_srt->via_if = $4;
}
| stat_route0 VIA TEXT {
this_srt->dest = RTD_DEVICE;
this_srt->if_name = $3;
rem_node(&this_srt->n);
add_tail(&STATIC_CFG->iface_routes, &this_srt->n);
}
| stat_route0 MULTIPATH stat_multipath {
this_srt->dest = RTD_MULTIPATH;
}
| stat_route0 RECURSIVE ipa {
this_srt->dest = RTDX_RECURSIVE;
this_srt->via = $3;
}
| 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); }
| BFD bool ';' { this_srt->use_bfd = $2; cf_check_bfd($2); }
;
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
|
