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8dc2a36ae5
RPKI-To-Router (RTR) sessions seem to be similar security-sensitivity as IBGP sessions. BIRD already offered a choice of either "plain TCP" (meh) or "SSH" (secure, albeit a bit more hassle to set up than TCP-MD5). The patch adds TCP-MD5 as another option. TCP-MD5 for RTR is specified through RFC 6810 section 7.3 and RFC 8210 section 9.3. Minor changes by committer.
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/*
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* BIRD -- An implementation of the TCP protocol for the RPKI protocol transport
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*
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* (c) 2015 CZ.NIC
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* (c) 2015 Pavel Tvrdik <pawel.tvrdik@gmail.com>
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*
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* This file was a part of RTRlib: http://rpki.realmv6.org/
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include <errno.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "rpki.h"
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#include "sysdep/unix/unix.h"
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static int
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rpki_tr_tcp_open(struct rpki_tr_sock *tr)
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{
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struct rpki_cache *cache = tr->cache;
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struct rpki_config *cf = (void *) cache->p->p.cf;
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struct rpki_tr_tcp_config *tcp_cf = (void *) cf->tr_config.spec;
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sock *sk = tr->sk;
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sk->type = SK_TCP_ACTIVE;
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if (tcp_cf->auth_type == RPKI_TCP_AUTH_MD5)
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sk->password = tcp_cf->password;
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if (sk_open(sk) != 0)
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return RPKI_TR_ERROR;
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return RPKI_TR_SUCCESS;
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}
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static const char *
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rpki_tr_tcp_ident(struct rpki_tr_sock *tr)
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{
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struct rpki_cache *cache = tr->cache;
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struct rpki_config *cf = (void *) cache->p->p.cf;
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if (tr->ident != NULL)
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return tr->ident;
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/* Length: <host> + ':' + <port> + '\0' */
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size_t len = strlen(cf->hostname) + 1 + 5 + 1;
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char *ident = mb_alloc(cache->pool, len);
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bsnprintf(ident, len, "%s:%u", cf->hostname, cf->port);
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tr->ident = ident;
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return tr->ident;
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}
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/**
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* rpki_tr_tcp_init - initializes the RPKI transport structure for a TCP connection
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* @tr: allocated RPKI transport structure
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*/
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void
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rpki_tr_tcp_init(struct rpki_tr_sock *tr)
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{
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tr->open_fp = &rpki_tr_tcp_open;
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tr->ident_fp = &rpki_tr_tcp_ident;
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}
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