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bird/proto/rpki/tcp_transport.c
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

79 lines
1.7 KiB
C

/*
* BIRD -- An implementation of the TCP protocol for the RPKI protocol transport
*
* (c) 2015 CZ.NIC
* (c) 2015 Pavel Tvrdik <pawel.tvrdik@gmail.com>
*
* This file was a part of RTRlib: http://rpki.realmv6.org/
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <errno.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include "rpki.h"
#include "sysdep/unix/unix.h"
static int
rpki_tr_tcp_open(struct rpki_tr_sock *tr)
{
sock *sk = tr->sk;
sk->type = SK_TCP_ACTIVE;
if (sk_open(sk) != 0)
return RPKI_TR_ERROR;
return RPKI_TR_SUCCESS;
}
static const char *
rpki_tr_tcp_ident(struct rpki_tr_sock *tr)
{
ASSERT(tr != NULL);
struct rpki_cache *cache = tr->cache;
struct rpki_config *cf = (void *) cache->p->p.cf;
if (tr->ident != NULL)
return tr->ident;
const char *host = cf->hostname;
ip_addr ip = cf->ip;
u16 port = cf->port;
size_t colon_and_port_len = 6; /* max ":65535" */
size_t ident_len;
if (host)
ident_len = strlen(host) + colon_and_port_len + 1;
else
ident_len = IPA_MAX_TEXT_LENGTH + colon_and_port_len + 1;
char *ident = mb_alloc(cache->pool, ident_len);
if (host)
bsnprintf(ident, ident_len, "%s:%u", host, port);
else
bsnprintf(ident, ident_len, "%I:%u", ip, port);
tr->ident = ident;
return tr->ident;
}
/**
* rpki_tr_tcp_init - initializes the RPKI transport structure for a TCP connection
* @tr: allocated RPKI transport structure
*/
void
rpki_tr_tcp_init(struct rpki_tr_sock *tr)
{
tr->open_fp = &rpki_tr_tcp_open;
tr->ident_fp = &rpki_tr_tcp_ident;
}