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bird/proto/rpki/config.Y
Pavel Tvrdík 695f704389 RPKI: Add SSH Transport support
Handle reconfigure (still buggy)
2015-10-14 14:47:01 +02:00

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/*
* BIRD -- The Resource Public Key Infrastructure (RPKI) to Router Protocol
*
* (c) 2015 CZ.NIC
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
CF_HDR
#include "proto/rpki/rpki.h"
CF_DEFINES
#define RPKI_CFG ((struct rpki_config *) this_proto)
static struct rpki_cache *this_rpki_cache;
CF_DECLS
CF_KEYWORDS(RPKI, CACHE, LIST, PREFERENCE, BIRD, PRIVATE, PUBLIC, KEY, SSH, ENCRYPTION, USER)
CF_GRAMMAR
CF_ADDTO(proto, rpki_proto)
rpki_proto:
rpki_proto_start proto_name '{' rpki_proto_opts '}' rpki_proto_finish
;
rpki_proto_start:
proto_start RPKI {
this_proto = proto_config_new(&proto_rpki, $1);
init_list(&RPKI_CFG->cache_list);
}
;
rpki_proto_finish:
{
char *rpki_err_buf = rpki_load_rtrlib();
if (rpki_err_buf != NULL)
cf_error("Cannot use a RPKI protocol: %s", rpki_err_buf);
if (RPKI_CFG->roa_table_cf == NULL)
cf_error("For the RPKI protocol must be specified a roa table");
};
rpki_proto_opts:
/* empty */
| rpki_proto_opts rpki_proto_item ';'
;
rpki_proto_item:
proto_item
| CACHE rpki_cache
| ROA TABLE roa_table_cf { RPKI_CFG->roa_table_cf = $3; }
;
rpki_cache:
rpki_cache_init rpki_cache_addr rpki_optional_cache_opts rpki_cache_finish {
add_tail(&RPKI_CFG->cache_list, &this_rpki_cache->n);
}
;
rpki_cache_finish:
{
if (this_rpki_cache->port[0] == 0) /* empty? */
{
if (this_rpki_cache->ssh != NULL)
strcpy(this_rpki_cache->port, RPKI_SSH_PORT);
else
strcpy(this_rpki_cache->port, RPKI_PORT);
}
}
;
rpki_cache_init:
{
this_rpki_cache = rpki_new_cache();
}
;
rpki_cache_addr:
text {
this_rpki_cache = rpki_new_cache();
this_rpki_cache->host = $1;
}
| ipa {
this_rpki_cache->host = cfg_alloc(sizeof(INET6_ADDRSTRLEN));
bsnprintf(this_rpki_cache->host, INET6_ADDRSTRLEN, "%I", $1);
}
;
rpki_optional_cache_opts:
/* empty */
| '{' rpki_cache_opts '}'
;
rpki_cache_opts:
/* empty */
| rpki_cache_opts rpki_cache_opts_item ';'
;
rpki_cache_opts_item:
PORT expr {
check_u16($2);
bsnprintf(this_rpki_cache->port, RPKI_PORT_MAX_LENGTH_STR, "%u", (u16) $2);
}
| PREFERENCE expr {
check_u8($2);
this_rpki_cache->preference = $2;
}
| SSH ENCRYPTION rpki_transport_ssh_init '{' rpki_transport_ssh_opts '}' rpki_transport_ssh_finish
;
rpki_transport_ssh_init:
{
this_rpki_cache->ssh = cfg_allocz(sizeof(struct rpki_ssh_config));
if (strncmp(this_rpki_cache->port, RPKI_PORT, RPKI_PORT_MAX_LENGTH_STR) == 0)
strcpy(this_rpki_cache->port, RPKI_SSH_PORT);
}
;
rpki_transport_ssh_opts:
/* empty */
| rpki_transport_ssh_opts rpki_transport_ssh_item ';'
;
rpki_transport_ssh_item:
BIRD PRIVATE KEY text {
check_file_readability($4);
this_rpki_cache->ssh->bird_private_key = $4;
}
| CACHE PUBLIC KEY text {
check_file_readability($4);
this_rpki_cache->ssh->cache_public_key = $4;
}
| USER text {
this_rpki_cache->ssh->user = $2;
}
;
rpki_transport_ssh_finish:
{
#define RPKI_PARSE_CACHE_MISS_SSH_OPT(what) "Miss '" what ";' option in the %s protocol at cache server %s inside the ssh encryption block"
if (!this_rpki_cache->ssh->bird_private_key)
cf_error(RPKI_PARSE_CACHE_MISS_SSH_OPT("bird private key \"/path/to/ssh_key/id_rsa\""), RPKI_CFG->c.name, this_rpki_cache->host);
if (!this_rpki_cache->ssh->cache_public_key)
cf_error(RPKI_PARSE_CACHE_MISS_SSH_OPT("cache public key \"/path/to/ssh_key/known_hosts\""), RPKI_CFG->c.name, this_rpki_cache->host);
if (!this_rpki_cache->ssh->user)
cf_error(RPKI_PARSE_CACHE_MISS_SSH_OPT("user \"ssh_username\""), RPKI_CFG->c.name, this_rpki_cache->host);
}
CF_CODE
CF_END