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bird/nest/config.Y

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/*
* BIRD -- Core Configuration
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "nest/rt-dev.h"
#include "nest/password.h"
#include "nest/cmds.h"
CF_DEFINES
static struct proto_config *this_proto;
static struct iface_patt *this_ipatt;
CF_DECLS
CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, TABLE, STATES, ROUTES, FILTERS)
CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
CF_KEYWORDS(PRIMARY, STATS, COUNT, FOR, COMMANDS)
CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
RIP, OSPF, OSPF_EXT, OSPF_IA, OSPF_BOUNDARY, BGP, PIPE)
CF_ENUM(T_ENUM_SCOPE, SCOPE_, HOST, LINK, SITE, ORGANIZATION, UNIVERSE)
CF_ENUM(T_ENUM_RTC, RTC_, UNICAST, BROADCAST, MULTICAST, ANYCAST)
CF_ENUM(T_ENUM_RTD, RTD_, ROUTER, DEVICE, BLACKHOLE, UNREACHABLE, PROHIBIT)
%type <i32> idval
%type <f> imexport
%type <r> rtable
%type <p> password_list password_begin
%type <s> optsym
%type <ra> r_args
%type <i> echo_mask echo_size debug_mask debug_list debug_flag import_or_proto
%type <t> proto_patt
CF_GRAMMAR
/* Setting of router ID */
CF_ADDTO(conf, rtrid)
rtrid: ROUTER ID idval ';' {
new_config->router_id = $3;
}
;
idval:
NUM { $$ = $1; }
| RTRID
| IPA {
#ifndef IPV6
$$ = ipa_to_u32($1);
#else
cf_error("Router IDs must be entered as hexadecimal numbers or IPv4 addresses in IPv6 version");
#endif
}
;
/* Creation of routing tables */
CF_ADDTO(conf, newtab)
newtab: TABLE SYM {
rt_new_table($2);
}
;
/* Definition of protocols */
CF_ADDTO(conf, proto)
proto_start: PROTOCOL
proto_name:
/* EMPTY */ {
struct symbol *s = cf_default_name(this_proto->protocol->template, &this_proto->protocol->name_counter);
s->class = SYM_PROTO;
s->def = this_proto;
this_proto->name = s->name;
}
| SYM {
cf_define_symbol($1, SYM_PROTO, 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 debug_mask { this_proto->debug = $2; }
| IMPORT imexport { this_proto->in_filter = $2; }
| EXPORT imexport { this_proto->out_filter = $2; }
| TABLE rtable { this_proto->table = $2; }
;
imexport:
FILTER filter { $$ = $2; }
| where_filter
| ALL { $$ = FILTER_ACCEPT; }
| NONE { $$ = FILTER_REJECT; }
;
rtable:
SYM {
if ($1->class != SYM_TABLE) cf_error("Table name expected");
$$ = $1->def;
}
;
CF_ADDTO(conf, debug_default)
debug_default:
DEBUG PROTOCOLS debug_mask { new_config->proto_default_debug = $3; }
| DEBUG COMMANDS expr { new_config->cli_debug = $3; }
;
/* Interface patterns */
iface_patt:
TEXT { this_ipatt->pattern = $1; this_ipatt->prefix = IPA_NONE; this_ipatt->pxlen = 0; }
| prefix { this_ipatt->pattern = NULL; this_ipatt->prefix = $1.addr; this_ipatt->pxlen = $1.len; }
| TEXT prefix { this_ipatt->pattern = $1; this_ipatt->prefix = $2.addr; this_ipatt->pxlen = $2.len; }
;
/* 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));
this_proto = &p->c;
p->c.preference = DEF_PREF_DIRECT;
init_list(&p->iface_list);
}
;
dev_proto:
dev_proto_start proto_name '{'
| dev_proto proto_item ';'
| dev_proto dev_iface_list ';'
;
dev_iface_entry_init:
/* EMPTY */ {
struct rt_dev_config *p = (void *) this_proto;
struct iface_patt *k = cfg_allocz(sizeof(struct iface_patt));
add_tail(&p->iface_list, &k->n);
this_ipatt = k;
}
;
dev_iface_entry:
dev_iface_entry_init iface_patt
;
dev_iface_list:
INTERFACE dev_iface_entry
| dev_iface_list ',' dev_iface_entry
;
/* Debug flags */
debug_mask:
ALL { $$ = ~0; }
| OFF { $$ = 0; }
| '{' debug_list '}' { $$ = $2; }
;
debug_list:
debug_flag
| debug_list ',' debug_flag { $$ = $1 | $3; }
;
debug_flag:
STATES { $$ = D_STATES; }
| ROUTES { $$ = D_ROUTES; }
| FILTERS { $$ = D_FILTERS; }
| INTERFACES { $$ = D_IFACES; }
| EVENTS { $$ = D_EVENTS; }
| PACKETS { $$ = D_PACKETS; }
;
/* Password lists */
password_begin:
PASSWORD TEXT {
last_password_item = cfg_alloc(sizeof (struct password_item));
last_password_item->password = $2;
last_password_item->from = 0;
last_password_item->to = TIME_INFINITY;
last_password_item->id = 0;
last_password_item->next = NULL;
$$=last_password_item;
}
;
password_items:
/* empty */ { }
| FROM datetime password_items { last_password_item->from = $2; }
| TO datetime password_items { last_password_item->to = $2; }
| PASSIVE datetime password_items { last_password_item->passive = $2; }
| ID expr password_items { last_password_item->id = $2; }
;
password_list:
/* empty */ { $$ = NULL; }
| password_begin password_items ';' password_list {
$1->next = $4;
$$ = $1;
}
;
/* Core commands */
CF_CLI_HELP(SHOW, ..., [[Show status information]])
CF_CLI(SHOW STATUS,,, [[Show router status]])
{ cmd_show_status(); }
CF_CLI(SHOW PROTOCOLS, optsym, [<name>], [[Show routing protocols]])
{ proto_show($3, 0); } ;
CF_CLI(SHOW PROTOCOLS ALL, optsym, [<name>], [[Show routing protocol details]])
{ proto_show($4, 1); } ;
optsym:
SYM
| /* empty */ { $$ = NULL; }
;
CF_CLI(SHOW INTERFACES,,, [[Show network interfaces]])
{ if_show(); } ;
CF_CLI(SHOW INTERFACES SUMMARY,,, [[Show summary of network interfaces]])
{ if_show_summary(); } ;
CF_CLI(SHOW ROUTE, r_args, [<prefix>] [table <t>] [filter <f>] [all] [primary] [(import|protocol) <p>] [stats], [[Show routing table]])
{ rt_show($3); } ;
r_args:
/* empty */ {
$$ = cfg_allocz(sizeof(struct rt_show_data));
$$->pxlen = 256;
$$->filter = FILTER_ACCEPT;
$$->table = config->master_rtc->table;
}
| r_args prefix {
$$ = $1;
if ($$->pxlen != 256) cf_error("Only one prefix expected");
$$->prefix = $2.addr;
$$->pxlen = $2.len;
}
| r_args FOR prefix_or_ipa {
$$ = $1;
if ($$->pxlen != 256) cf_error("Only one prefix expected");
$$->prefix = $3.addr;
$$->pxlen = $3.len;
$$->show_for = 1;
}
| r_args TABLE SYM {
$$ = $1;
if ($3->class != SYM_TABLE) cf_error("%s is not a table", $3->name);
$$->table = ((struct rtable_config *)$3->def)->table;
}
| r_args FILTER filter {
$$ = $1;
if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
$$->filter = $3;
}
| r_args where_filter {
$$ = $1;
if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
$$->filter = $2;
}
| r_args ALL {
$$ = $1;
$$->verbose = 1;
}
| r_args PRIMARY {
$$ = $1;
$$->primary_only = 1;
}
| r_args import_or_proto SYM {
struct proto_config *c = (struct proto_config *) $3->def;
$$ = $1;
if ($$->import_mode) cf_error("Protocol specified twice");
if ($3->class != SYM_PROTO || !c->proto) cf_error("%s is not a protocol", $3->name);
$$->import_mode = $2;
$$->primary_only = 1;
$$->import_protocol = c->proto;
$$->running_on_config = c->proto->cf->global;
}
| r_args STATS {
$$ = $1;
$$->stats = 1;
}
| r_args COUNT {
$$ = $1;
$$->stats = 2;
}
;
import_or_proto:
IMPORT { $$ = 1; }
| PROTOCOL { $$ = 2; }
;
CF_CLI(SHOW SYMBOLS, optsym, [<symbol>], [[Show all known symbolic names]])
{ cmd_show_symbols($3); } ;
CF_CLI_HELP(DUMP, ..., [[Dump debugging information]])
CF_CLI(DUMP RESOURCES,,, [[Dump all allocated resource]])
{ rdump(&root_pool); cli_msg(0, ""); } ;
CF_CLI(DUMP SOCKETS,,, [[Dump open sockets]])
{ sk_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP INTERFACES,,, [[Dump interface information]])
{ if_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP NEIGHBORS,,, [[Dump neighbor cache]])
{ neigh_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP ATTRIBUTES,,, [[Dump attribute cache]])
{ rta_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP ROUTES,,, [[Dump routing table]])
{ rt_dump_all(); cli_msg(0, ""); } ;
CF_CLI(DUMP PROTOCOLS,,, [[Dump protocol information]])
{ protos_dump_all(); cli_msg(0, ""); } ;
CF_CLI(ECHO, echo_mask echo_size, [all | off | <mask>] [<buffer-size>], [[Configure echoing of log messages]]) {
cli_set_log_echo(this_cli, $2, $3);
cli_msg(0, "");
} ;
echo_mask:
ALL { $$ = ~0; }
| OFF { $$ = 0; }
| NUM
;
echo_size:
/* empty */ { $$ = 4096; }
| NUM {
if ($1 < 256 || $1 > 65536) cf_error("Invalid log buffer size");
$$ = $1;
}
;
CF_CLI(DISABLE, proto_patt, <protocol> | <pattern> | all, [[Disable protocol]])
{ proto_xxable($2, 0); } ;
CF_CLI(ENABLE, proto_patt, <protocol> | <pattern> | all, [[Enable protocol]])
{ proto_xxable($2, 1); } ;
CF_CLI(RESTART, proto_patt, <protocol> | <pattern> | all, [[Restart protocol]])
{ proto_xxable($2, 2); } ;
CF_CLI_HELP(DEBUG, ..., [[Control protocol debugging]])
CF_CLI(DEBUG, proto_patt debug_mask, (<protocol> | <pattern> | all) (all | off | { states | routes | filters | events | packets }), [[Control protocol debugging]])
{ proto_debug($2, $3); }
proto_patt:
SYM { $$ = $1->name; }
| ALL { $$ = "*"; }
| TEXT
;
CF_CODE
CF_END