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|
/*
* BIRD -- Router Advertisement Configuration
*
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "proto/bfd/bfd.h"
CF_DEFINES
#define BFD_CFG ((struct bfd_config *) this_proto)
#define BFD_IFACE ((struct bfd_iface_config *) this_ipatt)
#define BFD_NEIGHBOR this_bfd_neighbor
static struct bfd_neighbor *this_bfd_neighbor;
extern struct bfd_config *bfd_cf;
CF_DECLS
CF_KEYWORDS(BFD, MIN, IDLE, RX, TX, INTERVAL, MULTIPLIER, PASSIVE,
INTERFACE, MULTIHOP, NEIGHBOR, DEV, LOCAL, AUTHENTICATION,
NONE, SIMPLE, METICULOUS, KEYED, MD5, SHA1, IPV4, IPV6, DIRECT,
STRICT, BIND)
%type <iface> bfd_neigh_iface
%type <a> bfd_neigh_local
%type <i> bfd_neigh_multihop bfd_auth_type
%type <bssc> bfd_show_sessions_args
CF_GRAMMAR
proto: bfd_proto ;
bfd_proto_start: proto_start BFD
{
this_proto = proto_config_new(&proto_bfd, $1);
init_list(&BFD_CFG->patt_list);
init_list(&BFD_CFG->neigh_list);
BFD_CFG->accept_ipv4 = BFD_CFG->accept_ipv6 = 1;
BFD_CFG->accept_direct = BFD_CFG->accept_multihop = 1;
};
bfd_proto_item:
proto_item
| ACCEPT bfd_accept
| INTERFACE bfd_iface
| MULTIHOP bfd_multihop
| NEIGHBOR bfd_neighbor
| STRICT BIND bool { BFD_CFG->strict_bind = $3; }
;
bfd_proto_opts:
/* empty */
| bfd_proto_opts bfd_proto_item ';'
;
bfd_proto:
bfd_proto_start proto_name '{' bfd_proto_opts '}';
bfd_accept_item:
IPV4 { BFD_CFG->accept_ipv4 = 1; BFD_CFG->accept_ipv6 = 0; }
| IPV6 { BFD_CFG->accept_ipv4 = 0; BFD_CFG->accept_ipv6 = 1; }
| DIRECT { BFD_CFG->accept_direct = 1; BFD_CFG->accept_multihop = 0; }
| MULTIHOP { BFD_CFG->accept_direct = 0; BFD_CFG->accept_multihop = 1; }
;
bfd_accept:
{
BFD_CFG->accept_ipv4 = BFD_CFG->accept_ipv6 = 1;
BFD_CFG->accept_direct = BFD_CFG->accept_multihop = 1;
}
| bfd_accept bfd_accept_item
bfd_iface_start:
{
this_ipatt = cfg_allocz(sizeof(struct bfd_iface_config));
add_tail(&BFD_CFG->patt_list, NODE this_ipatt);
init_list(&this_ipatt->ipn_list);
BFD_IFACE->min_rx_int = BFD_DEFAULT_MIN_RX_INT;
BFD_IFACE->min_tx_int = BFD_DEFAULT_MIN_TX_INT;
BFD_IFACE->idle_tx_int = BFD_DEFAULT_IDLE_TX_INT;
BFD_IFACE->multiplier = BFD_DEFAULT_MULTIPLIER;
reset_passwords();
};
bfd_iface_finish:
{
BFD_IFACE->passwords = get_passwords();
if (!BFD_IFACE->auth_type != !BFD_IFACE->passwords)
cf_warn("Authentication and password options should be used together");
if (BFD_IFACE->passwords)
{
struct password_item *pass;
WALK_LIST(pass, *BFD_IFACE->passwords)
{
if (pass->alg)
cf_error("Password algorithm option not available in BFD protocol");
pass->alg = bfd_auth_type_to_hash_alg[BFD_IFACE->auth_type];
}
}
};
bfd_iface_item:
INTERVAL expr_us { BFD_IFACE->min_rx_int = BFD_IFACE->min_tx_int = $2; }
| MIN RX INTERVAL expr_us { BFD_IFACE->min_rx_int = $4; }
| MIN TX INTERVAL expr_us { BFD_IFACE->min_tx_int = $4; }
| IDLE TX INTERVAL expr_us { BFD_IFACE->idle_tx_int = $4; }
| MULTIPLIER expr { BFD_IFACE->multiplier = $2; }
| PASSIVE bool { BFD_IFACE->passive = $2; }
| AUTHENTICATION bfd_auth_type { BFD_IFACE->auth_type = $2; }
| password_list {}
;
bfd_auth_type:
NONE { $$ = BFD_AUTH_NONE; }
| SIMPLE { $$ = BFD_AUTH_SIMPLE; }
| KEYED MD5 { $$ = BFD_AUTH_KEYED_MD5; }
| KEYED SHA1 { $$ = BFD_AUTH_KEYED_SHA1; }
| METICULOUS KEYED MD5 { $$ = BFD_AUTH_METICULOUS_KEYED_MD5; }
| METICULOUS KEYED SHA1 { $$ = BFD_AUTH_METICULOUS_KEYED_SHA1; }
;
bfd_iface_opts:
/* empty */
| bfd_iface_opts bfd_iface_item ';'
;
bfd_iface_opt_list:
/* empty */
| '{' bfd_iface_opts '}'
;
bfd_iface:
bfd_iface_start iface_patt_list_nopx bfd_iface_opt_list bfd_iface_finish;
bfd_multihop:
bfd_iface_start bfd_iface_opt_list bfd_iface_finish
{ BFD_CFG->multihop = BFD_IFACE; };
bfd_neigh_iface:
/* empty */ { $$ = NULL; }
| '%' symbol { $$ = if_get_by_name($2->name); }
| DEV text { $$ = if_get_by_name($2); }
;
bfd_neigh_local:
/* empty */ { $$ = IPA_NONE; }
| LOCAL ipa { $$ = $2; }
;
bfd_neigh_multihop:
/* empty */ { $$ = 0; }
| MULTIHOP bool { $$ = $2; }
;
bfd_neighbor: ipa bfd_neigh_iface bfd_neigh_local bfd_neigh_multihop
{
this_bfd_neighbor = cfg_allocz(sizeof(struct bfd_neighbor));
add_tail(&BFD_CFG->neigh_list, NODE this_bfd_neighbor);
BFD_NEIGHBOR->addr = $1;
BFD_NEIGHBOR->local = $3;
BFD_NEIGHBOR->iface = $2;
BFD_NEIGHBOR->multihop = $4;
if ($4 && $2)
cf_error("Neighbor cannot set both interface and multihop");
if ($4 && ipa_zero($3))
cf_error("Multihop neighbor requires specified local address");
};
CF_CLI_HELP(SHOW BFD, ..., [[Show information about BFD protocol]]);
CF_CLI_HELP(SHOW BFD SESSIONS, ..., [[Show information about BFD sessions]]);
CF_CLI(SHOW BFD SESSIONS, bfd_show_sessions_args, [<name>] [address <ip|prefix>] [(interface|dev) \"<name>\"] [ipv4|ipv6] [direct|multihop] [all], [[Show information about BFD sessions]])
{ PROTO_WALK_CMD($4->name, &proto_bfd, p) bfd_show_sessions(p, $4); };
bfd_show_sessions_args:
/* empty */ { $$ = cfg_allocz(sizeof(struct bfd_show_sessions_cmd)); }
| bfd_show_sessions_args CF_SYM_KNOWN { cf_assert_symbol($2, SYM_PROTO); $$->name = $2; }
| bfd_show_sessions_args ADDRESS net_or_ipa { net_copy(&($$->address), &($3)); }
| bfd_show_sessions_args INTERFACE text { $$->iface = if_get_by_name($3); }
| bfd_show_sessions_args DEV text { $$->iface = if_get_by_name($3); }
| bfd_show_sessions_args ALL { $$->verbose = 1; }
| bfd_show_sessions_args IPV4 { $$->ipv4 = 1; if ($$->ipv6) cf_error("Options 'ipv4' and 'ipv6' are mutually exclusive"); }
| bfd_show_sessions_args IPV6 { $$->ipv6 = 1; if ($$->ipv4) cf_error("Options 'ipv4' and 'ipv6' are mutually exclusive"); }
| bfd_show_sessions_args DIRECT { $$->direct = 1; if ($$->multihop) cf_error("Options 'direct' and 'multihop' are mutually exclusive"); }
| bfd_show_sessions_args MULTIHOP { $$->multihop = 1; if ($$->direct) cf_error("Options 'direct' and 'multihop' are mutually exclusive"); }
;
CF_CODE
CF_END
|
