0
0
mirror of https://gitlab.nic.cz/labs/bird.git synced 2024-11-17 16:48:43 +00:00
bird/nest/config.Y
Martin Mares 7f400d1c62 After today's lengthy discussions about filter syntax, let's clean up
whitespace/semicolon rules for whole config file:

   o  All non-zero amounts of whitespace are equivalent to single space
      (aka `all the whitespace has been born equal' ;-)).
   o  Comments count as whitespace.
   o  Whitespace has no syntactic signifance (it can only separate lexical
      elements).
   o  Consequence: line ends are no longer treated as `;'s.
   o  Every declaration must be terminated by an explicit `;' unless
      or by a group enclosed in `{' and `}'.
1999-03-29 19:04:14 +00:00

117 lines
2.4 KiB
Plaintext

/*
* BIRD -- Core Configuration
*
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
static struct proto_config *this_proto;
#include "nest/rt-dev.h"
void rt_dev_add_iface(char *);
CF_DECLS
CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
CF_KEYWORDS(INTERFACE, INPUT, OUTPUT, FILTER)
%type <i> idval
CF_GRAMMAR
/* Setting of router ID */
CF_ADDTO(conf, rtrid)
rtrid: ROUTER ID idval ';' {
new_config->router_id = $3;
}
;
idval:
NUM
| IPA { $$ = ipa_to_u32($1); }
;
/* Definition of protocols */
CF_ADDTO(conf, proto)
proto_start: PROTOCOL
proto_name:
/* EMPTY */ {
struct symbol *s = cf_default_name(this_proto->proto->name, &this_proto->proto->name_counter);
s->class = SYM_PROTO;
s->def = this_proto;
this_proto->name = s->name;
}
| SYM {
if ($1->class) cf_error("Symbol already defined");
$1->class = SYM_PROTO;
$1->def = this_proto;
this_proto->name = $1->name;
}
;
proto_item:
/* EMPTY */
| PREFERENCE expr {
if ($2 < 0 || $2 > 255) cf_error("Invalid preference");
this_proto->preference = $2;
}
| DISABLED { this_proto->disabled = 1; }
| DEBUG expr { this_proto->debug = $2; }
| DEBUG ALL { this_proto->debug = ~0; }
| DEBUG OFF { this_proto->debug = 0; }
| INPUT FILTER filter { this_proto->in_filter = $3; }
| OUTPUT FILTER filter { this_proto->out_filter = $3; }
;
/* Direct device route protocol */
CF_ADDTO(proto, dev_proto '}')
dev_proto_start: proto_start DIRECT {
struct rt_dev_config *p = proto_config_new(&proto_device, sizeof(struct rt_dev_config));
struct iface_patt *k = cfg_alloc(sizeof(struct iface_patt));
this_proto = &p->c;
p->c.preference = DEF_PREF_DIRECT;
init_list(&p->iface_list);
k->pattern = "*";
add_tail(&p->iface_list, &k->n);
}
;
dev_proto:
dev_proto_start proto_name '{'
| dev_proto proto_item ';'
| dev_proto dev_iface_list ';'
;
dev_iface_list:
INTERFACE TEXT {
/* FIXME: Beware of obscure semantics. */
init_list(&((struct rt_dev_config *) this_proto)->iface_list);
rt_dev_add_iface($2);
}
| dev_iface_list ',' TEXT { rt_dev_add_iface($3); }
;
CF_CODE
void
rt_dev_add_iface(char *n)
{
struct rt_dev_config *p = (void *) this_proto;
struct iface_patt *k = cfg_alloc(sizeof(struct iface_patt));
k->pattern = cfg_strdup(n);
add_tail(&p->iface_list, &k->n);
}
CF_END