along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net_packet.c,v 1.1.2.7 2002/03/01 14:09:31 guus Exp $
+ $Id: net_packet.c,v 1.1.2.15 2002/06/08 12:57:09 guus Exp $
*/
#include "config.h"
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
-#ifdef HAVE_LINUX
+#ifdef HAVE_NETINET_IP_H
#include <netinet/ip.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
#endif
#include <stdio.h>
#include <openssl/pem.h>
#include <openssl/hmac.h>
-#ifndef HAVE_RAND_PSEUDO_BYTES
-#define RAND_pseudo_bytes RAND_bytes
-#endif
-
#include <zlib.h>
#include <utils.h>
HMAC(myself->digest, myself->key, myself->keylength, (char *)&inpkt->seqno, inpkt->len, hmac, NULL);
if(memcmp(hmac, (char *)&inpkt->seqno + inpkt->len, myself->maclength))
{
- syslog(LOG_DEBUG, _("Got unauthenticated packet from %s (%s)"), n->name, n->hostname);
+ if(debug_lvl >= DEBUG_TRAFFIC)
+ syslog(LOG_DEBUG, _("Got unauthenticated packet from %s (%s)"), n->name, n->hostname);
return;
}
}
if(inpkt->seqno <= n->received_seqno)
{
- syslog(LOG_DEBUG, _("Got late or replayed packet from %s (%s), seqno %d"), n->name, n->hostname, inpkt->seqno);
+ if(debug_lvl >= DEBUG_TRAFFIC)
+ syslog(LOG_DEBUG, _("Got late or replayed packet from %s (%s), seqno %d"), n->name, n->hostname, inpkt->seqno);
return;
}
vpn_packet_t *copy;
static int priority = 0;
int origpriority;
+ int sock;
cp
+ /* Make sure we have a valid key */
+
if(!n->status.validkey)
{
if(debug_lvl >= DEBUG_TRAFFIC)
list_insert_tail(n->queue, copy);
+ if(n->queue->count > MAXQUEUELENGTH)
+ list_delete_head(n->queue);
+
if(!n->status.waitingforkey)
send_req_key(n->nexthop->connection, myself, n);
+ n->status.waitingforkey = 1;
+
return;
}
inpkt->len += n->maclength;
}
+ /* Determine which socket we have to use */
+
+ for(sock = 0; sock < listen_sockets; sock++)
+ if(n->address.sa.sa_family == listen_socket[sock].sa.sa.sa_family)
+ break;
+
+ if(sock >= listen_sockets)
+ sock = 0; /* If none is available, just use the first and hope for the best. */
+
/* Send the packet */
- if(priorityinheritance && origpriority != priority)
+#if defined(SOL_IP) && defined(IP_TOS)
+ if(priorityinheritance && origpriority != priority && listen_socket[sock].sa.sa.sa_family == AF_INET)
{
priority = origpriority;
if(debug_lvl >= DEBUG_TRAFFIC)
syslog(LOG_DEBUG, _("Setting outgoing packet priority to %d"), priority);
- if(setsockopt(udp_socket[0], SOL_IP, IP_TOS, &priority, sizeof(priority))) /* SO_PRIORITY doesn't seem to work */
+ if(setsockopt(sock, SOL_IP, IP_TOS, &priority, sizeof(priority))) /* SO_PRIORITY doesn't seem to work */
syslog(LOG_ERR, _("System call `%s' failed: %s"), "setsockopt", strerror(errno));
}
+#endif
- if((sendto(udp_socket[0], (char *)&inpkt->seqno, inpkt->len, 0, &(n->address.sa), SALEN(n->address.sa))) < 0)
+ if((sendto(listen_socket[sock].udp, (char *)&inpkt->seqno, inpkt->len, 0, &(n->address.sa), SALEN(n->address.sa))) < 0)
{
syslog(LOG_ERR, _("Error sending packet to %s (%s): %s"),
n->name, n->hostname, strerror(errno));
return;
}
+ sockaddrunmap(&from); /* Some braindead IPv6 implementations do stupid things. */
+
n = lookup_node_udp(&from);
if(!n)