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bird/proto/rpki/config.Y
Pavel Tvrdík 65d2a88dd2 RPKI protocol with one cache server per protocol
The RPKI protocol (RFC 6810) using the RTRLib
(http://rpki.realmv6.org/) that is integrated inside
the BIRD's code.

Implemeted transports are:
 - unprotected transport over TCP
 - secure transport over SSHv2

Example configuration of bird.conf:
  ...
  roa4 table r4;
  roa6 table r6;

  protocol rpki {
    debug all;

    # Import both IPv4 and IPv6 ROAs
    roa4 { table r4; };
    roa6 { table r6; };

    # Set cache server (validator) address,
    # overwrite default port 323
    remote "rpki-validator.realmv6.org" port 8282;

    # Overwrite default time intervals
    retry   10;         # Default 600 seconds
    refresh 60;         # Default 3600 seconds
    expire 600;         # Default 7200 seconds
  }

  protocol rpki {
    debug all;

    # Import only IPv4 routes
    roa4 { table r4; };

    # Set cache server address to localhost,
    # use default ports tcp => 323 or ssh => 22
    remote 127.0.0.1;

    # Use SSH transport instead of unprotected transport over TCP
    ssh encryption {
      bird private key "/home/birdgeek/.ssh/id_rsa";
      remote public key "/home/birdgeek/.ssh/known_hosts";
      user "birdgeek";
    };
  }
  ...
2016-12-07 09:35:24 +01:00

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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)
#define RPKI_TR_SSH_CFG ((struct rpki_tr_ssh_config *) RPKI_CFG->tr_config.spec)
static void
rpki_check_unused_hostname(void)
{
if (RPKI_CFG->hostname != NULL)
cf_error("Only one cache server per protocol allowed");
}
static void
rpki_check_unused_transport(void)
{
if (RPKI_CFG->tr_config.spec != NULL)
cf_error("At the most one transport per protocol allowed");
}
CF_DECLS
CF_KEYWORDS(RPKI, REMOTE, BIRD, PRIVATE, PUBLIC, KEY, TCP, SSH, TRANSPORT, USER,
RETRY, REFRESH, EXPIRE, KEEP)
%type <i> rpki_keep_interval
CF_GRAMMAR
CF_ADDTO(proto, rpki_proto)
rpki_proto_start: proto_start RPKI {
this_proto = proto_config_new(&proto_rpki, $1);
RPKI_CFG->retry_interval = RPKI_RETRY_INTERVAL;
RPKI_CFG->refresh_interval = RPKI_REFRESH_INTERVAL;
RPKI_CFG->expire_interval = RPKI_EXPIRE_INTERVAL;
};
rpki_proto: rpki_proto_start proto_name '{' rpki_proto_opts '}' { rpki_check_config(RPKI_CFG); };
rpki_proto_opts:
/* empty */
| rpki_proto_opts rpki_proto_item ';'
;
rpki_proto_item:
proto_item
| proto_channel
| REMOTE rpki_cache_addr
| REMOTE rpki_cache_addr rpki_proto_item_port
| rpki_proto_item_port
| TRANSPORT rpki_transport
| REFRESH rpki_keep_interval expr {
if (rpki_check_refresh_interval($3))
cf_error(rpki_check_refresh_interval($3));
RPKI_CFG->refresh_interval = $3;
RPKI_CFG->keep_refresh_interval = $2;
}
| RETRY rpki_keep_interval expr {
if (rpki_check_retry_interval($3))
cf_error(rpki_check_retry_interval($3));
RPKI_CFG->retry_interval = $3;
RPKI_CFG->keep_retry_interval = $2;
}
| EXPIRE rpki_keep_interval expr {
if (rpki_check_expire_interval($3))
cf_error(rpki_check_expire_interval($3));
RPKI_CFG->expire_interval = $3;
RPKI_CFG->keep_expire_interval = $2;
}
;
rpki_keep_interval:
/* empty */ { $$ = 0; }
| KEEP { $$ = 1; }
;
rpki_proto_item_port: PORT expr { check_u16($2); RPKI_CFG->port = $2; };
rpki_cache_addr:
text {
rpki_check_unused_hostname();
RPKI_CFG->hostname = $1;
}
| ipa {
rpki_check_unused_hostname();
RPKI_CFG->ip = $1;
/* Ensure hostname is filled */
char *hostname = cfg_allocz(sizeof(INET6_ADDRSTRLEN + 1));
bsnprintf(hostname, INET6_ADDRSTRLEN+1, "%I", RPKI_CFG->ip);
RPKI_CFG->hostname = hostname;
}
;
rpki_transport:
TCP rpki_transport_tcp_init
| SSH rpki_transport_ssh_init '{' rpki_transport_ssh_opts '}' rpki_transport_ssh_check
;
rpki_transport_tcp_init:
{
rpki_check_unused_transport();
RPKI_CFG->tr_config.spec = cfg_allocz(sizeof(struct rpki_tr_tcp_config));
RPKI_CFG->tr_config.type = RPKI_TR_TCP;
};
rpki_transport_ssh_init:
{
rpki_check_unused_transport();
RPKI_CFG->tr_config.spec = cfg_allocz(sizeof(struct rpki_tr_ssh_config));
RPKI_CFG->tr_config.type = RPKI_TR_SSH;
};
rpki_transport_ssh_opts:
/* empty */
| rpki_transport_ssh_opts rpki_transport_ssh_item ';'
;
rpki_transport_ssh_item:
BIRD PRIVATE KEY text { RPKI_TR_SSH_CFG->bird_private_key = $4; }
| REMOTE PUBLIC KEY text { RPKI_TR_SSH_CFG->cache_public_key = $4; }
| USER text { RPKI_TR_SSH_CFG->user = $2; }
;
rpki_transport_ssh_check:
{
if (RPKI_TR_SSH_CFG->user == NULL)
cf_error("User must be set");
};
CF_CODE
CF_END