along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.c,v 1.35.4.28 2000/09/14 11:54:50 guus Exp $
+ $Id: net.c,v 1.35.4.32 2000/09/26 14:06:04 guus Exp $
*/
#include "config.h"
#include "net.h"
#include "netutl.h"
#include "protocol.h"
+#include "meta.h"
#include "system.h"
{
real_packet_t rp;
cp
- do_encrypt((vpn_packet_t*)packet, &rp, cl->key);
+ do_encrypt((vpn_packet_t*)packet, &rp, cl->datakey);
rp.from = htonl(myself->vpn_ip);
rp.data.len = htons(rp.data.len);
rp.len = htons(rp.len);
if(debug_lvl > 3)
- syslog(LOG_ERR, _("Sending packet of %d bytes to %s (%s)"), ntohs(rp.len), cl->id, cl->hostname);
+ syslog(LOG_ERR, _("Sending packet of %d bytes to %s (%s)"),
+ ntohs(rp.len), cl->name, cl->hostname);
total_socket_out += ntohs(rp.len);
if((send(cl->socket, (char*)&rp, ntohs(rp.len), 0)) < 0)
{
- syslog(LOG_ERR, _("Error sending packet to %s (%s): %m"), cl->id, cl->hostname);
+ syslog(LOG_ERR, _("Error sending packet to %s (%s): %m"),
+ cl->name, cl->hostname);
return -1;
}
cp
vpn_packet_t vp;
int lenin;
cp
- do_decrypt((real_packet_t*)packet, &vp, cl->key);
+ do_decrypt((real_packet_t*)packet, &vp, cl->datakey);
add_mac_addresses(&vp);
if(debug_lvl > 3)
- syslog(LOG_ERR, _("Receiving packet of %d bytes from %s (%s)"), ((real_packet_t*)packet)->len, cl->id, cl->hostname);
+ syslog(LOG_ERR, _("Receiving packet of %d bytes from %s (%s)"),
+ ((real_packet_t*)packet)->len, cl->name, cl->hostname);
if((lenin = write(tap_fd, &vp, vp.len + sizeof(vp.len))) < 0)
syslog(LOG_ERR, _("Can't write to tap device: %m"));
if(cl->sq)
{
if(debug_lvl > 3)
- syslog(LOG_DEBUG, _("Flushing send queue for %s (%s)"), cl->id, cl->hostname);
+ syslog(LOG_DEBUG, _("Flushing send queue for %s (%s)"),
+ cl->name, cl->hostname);
flush_queue(cl, &(cl->sq), xsend);
}
if(cl->rq)
{
if(debug_lvl > 3)
- syslog(LOG_DEBUG, _("Flushing receive queue for %s (%s)"), cl->id, cl->hostname);
+ syslog(LOG_DEBUG, _("Flushing receive queue for %s (%s)"),
+ cl->name, cl->hostname);
flush_queue(cl, &(cl->rq), xrecv);
}
cp
if(cl->flags & INDIRECTDATA)
{
if(debug_lvl > 3)
- syslog(LOG_NOTICE, _("Indirect packet to %s via %s"), cl->id, cl->hostname);
+ syslog(LOG_NOTICE, _("Indirect packet to %s via %s"),
+ cl->name, cl->hostname);
if((cl = lookup_conn(cl->real_ip)) == NULL)
{
if(debug_lvl > 3)
if(!cl->status.dataopen)
if(setup_vpn_connection(cl) < 0)
{
- syslog(LOG_ERR, _("Could not open UDP connection to %s (%s)"), cl->id, cl->hostname);
+ syslog(LOG_ERR, _("Could not open UDP connection to %s (%s)"),
+ cl->name, cl->hostname);
return -1;
}
if(!cl->status.validkey)
{
if(debug_lvl > 3)
- syslog(LOG_INFO, _("%s (%s) has no valid key, queueing packet"), cl->id, cl->hostname);
+ syslog(LOG_INFO, _("%s (%s) has no valid key, queueing packet"),
+ cl->name, cl->hostname);
add_queue(&(cl->sq), packet, packet->len + 2);
if(!cl->status.waitingforkey)
send_key_request(cl->vpn_ip); /* Keys should be sent to the host running the tincd */
if(!cl->status.active)
{
if(debug_lvl > 3)
- syslog(LOG_INFO, _("%s (%s) is not ready, queueing packet"), cl->id, cl->hostname);
+ syslog(LOG_INFO, _("%s (%s) is not ready, queueing packet"),
+ cl->name, cl->hostname);
add_queue(&(cl->sq), packet, packet->len + 2);
return 0; /* We don't want to mess up, do we? */
}
}
myself->vpn_ip = cfg->data.ip->ip;
- myself->vpn_hostname = hostlookup(htonl(myself->vpn_ip));
myself->hostname = hostlookup(htonl(myself->vpn_ip));
myself->vpn_mask = cfg->data.ip->mask;
myself->flags = 0;
+ if(!(cfg = get_config_val(tincname)))
+ asprintf(&(myself->name), IP_ADDR_S, IP_ADDR_V(myself->vpn_ip));
+ else
+ myself->name = (char*)cfg->data.val;
+
if(!(cfg = get_config_val(listenport)))
myself->port = 655;
else
flags = fcntl(nfd, F_GETFL);
if(fcntl(nfd, F_SETFL, flags | O_NONBLOCK) < 0)
{
- syslog(LOG_ERR, _("This is a bug: %s:%d: %d:%m %s (%s)"), __FILE__, __LINE__, nfd, cl->id, cl->hostname);
+ syslog(LOG_ERR, _("This is a bug: %s:%d: %d:%m %s (%s)"), __FILE__, __LINE__, nfd,
+ cl->name, cl->hostname);
return -1;
}
cp
if(getsockopt(cl->socket, SOL_SOCKET, SO_ERROR, &x, &l) < 0)
{
- syslog(LOG_ERR, _("This is a bug: %s:%d: %d:%m %s (%s)"), __FILE__, __LINE__, cl->socket, cl->id, cl->hostname);
+ syslog(LOG_ERR, _("This is a bug: %s:%d: %d:%m %s (%s)"),
+ __FILE__, __LINE__, cl->socket,
+ cl->name, cl->hostname);
return -1;
}
if(x)
{
- syslog(LOG_ERR, _("Incoming data socket error for %s (%s): %s"), cl->id, cl->hostname, strerror(x));
+ syslog(LOG_ERR, _("Incoming data socket error for %s (%s): %s"),
+ cl->name, cl->hostname, strerror(x));
return -1;
}
lenin = recvfrom(cl->socket, &rp, MTU, 0, NULL, NULL);
if(lenin <= 0)
{
- syslog(LOG_ERR, _("Receiving packet from %s (%s) failed: %m"), cl->id, cl->hostname);
+ syslog(LOG_ERR, _("Receiving packet from %s (%s) failed: %m"),
+ cl->name, cl->hostname);
return -1;
}
total_socket_in += lenin;
f = lookup_conn(rp.from);
if(!f)
{
- syslog(LOG_ERR, _("Got packet from %s (%s) with unknown origin %d.%d.%d.%d?"), cl->id, cl->hostname, IP_ADDR_V(rp.from));
+ syslog(LOG_ERR, _("Got packet from %s (%s) with unknown origin %d.%d.%d.%d?"),
+ cl->name, cl->hostname, IP_ADDR_V(rp.from));
return -1;
}
return;
if(debug_lvl > 0)
- syslog(LOG_NOTICE, _("Closing connection with %s (%s)"), cl->id, cl->hostname);
+ syslog(LOG_NOTICE, _("Closing connection with %s (%s)"),
+ cl->name, cl->hostname);
if(cl->status.timeout)
send_timeout(cl);
if(p->status.pinged && !p->status.got_pong)
{
if(debug_lvl > 1)
- syslog(LOG_INFO, _("%s (%s) didn't respond to PING"), cl->id, cl->hostname);
+ syslog(LOG_INFO, _("%s (%s) didn't respond to PING"),
+ p->name, p->hostname);
p->status.timeout = 1;
terminate_connection(p);
}
return 0;
}
-/*
- dispatch any incoming meta requests
-*/
-int handle_incoming_meta_data(conn_list_t *cl)
-{
- int x, l = sizeof(x);
- int request, oldlen, i;
- int lenin = 0;
-cp
- if(getsockopt(cl->meta_socket, SOL_SOCKET, SO_ERROR, &x, &l) < 0)
- {
- syslog(LOG_ERR, _("This is a bug: %s:%d: %d:%m %s (%s)"), __FILE__, __LINE__, cl->meta_socket, cl->id, cl->hostname);
- return -1;
- }
- if(x)
- {
- syslog(LOG_ERR, _("Metadata socket error for %s (%s): %s"), cl->id, cl->hostname, strerror(x));
- return -1;
- }
-
- lenin = read(cl->meta_socket, cl->buffer+cl->buflen, MAXBUFSIZE - cl->buflen);
-
- if(lenin<=0)
- {
- if(errno==EINTR)
- return 0;
- if(errno==0)
- {
- if(debug_lvl>DEBUG_CONNECTIONS)
- syslog(LOG_NOTICE, _("Connection closed by %s (%s)"), cl->id, cl->hostname);
- }
- else
- syslog(LOG_ERR, _("Metadata socket read error for %s (%s): %m"), cl->id, cl->hostname);
- return -1;
- }
-
- if(cl->status.encrypted)
- {
- /* FIXME: do decryption. */
- }
-
- oldlen = cl->buflen;
- cl->buflen += lenin;
-
- for(;;)
- {
- cl->reqlen = 0;
-
- for(i = oldlen; i < cl->buflen; i++)
- {
- if(cl->buffer[i] == '\n')
- {
- cl->buffer[i] = 0; /* replace end-of-line by end-of-string so we can use sscanf */
- cl->reqlen = i + 1;
- break;
- }
- }
-
- if(cl->reqlen)
- {
- if(debug_lvl > DEBUG_PROTOCOL)
- syslog(LOG_DEBUG, _("Got request from %s (%s): %s"), cl->id, cl->hostname, cl->buffer);
- if(sscanf(cl->buffer, "%d", &request) == 1)
- {
- if((request < 0) || (request > 255) || (request_handlers[request] == NULL))
- {
- syslog(LOG_ERR, _("Unknown request from %s (%s)"), cl->id, cl->hostname);
- return -1;
- }
- else
- {
- if(debug_lvl > DEBUG_PROTOCOL)
- syslog(LOG_DEBUG, _("Got %s from %s (%s)"), request_name[request], cl->id, cl->hostname);
-
- if(request_handlers[request](cl)) /* Something went wrong. Probably scriptkiddies. Terminate. */
- {
- syslog(LOG_ERR, _("Error while processing %s from %s (%s)"), request_name[request], cl->id, cl->hostname);
- return -1;
- }
- }
- else
- {
- syslog(LOG_ERR, _("Bogus data received from %s (%s)"), cl->id, cl->hostname);
- return -1;
- }
-
- cl->buflen -= cl->reqlen;
- memmove(cl->buffer, cl->buffer + cl->reqlen, cl->buflen);
- oldlen = 0;
- }
- else
- {
- break;
- }
- }
-
- if(cl->buflen >= MAXBUFSIZE)
- {
- syslog(LOG_ERR, _("Metadata read buffer overflow for %s (%s)"), cl->id, cl->hostname);
- return -1;
- }
-
- cl->last_ping_time = time(NULL);
- cl->want_ping = 0;
-cp
- return 0;
-}
-
/*
check all connections to see if anything
happened on their sockets
I've once got here when it said `No route to host'.
*/
getsockopt(p->socket, SOL_SOCKET, SO_ERROR, &x, &l);
- syslog(LOG_ERR, _("Outgoing data socket error for %s (%s): %s"), cl->id, cl->hostname, strerror(x));
+ syslog(LOG_ERR, _("Outgoing data socket error for %s (%s): %s"),
+ p->name, p->hostname, strerror(x));
terminate_connection(p);
return;
}
if(p->status.meta)
if(FD_ISSET(p->meta_socket, f))
- if(handle_incoming_meta_data(p) < 0)
+ if(receive_meta(p) < 0)
{
terminate_connection(p);
return;
if(sighup)
{
sighup = 0;
+ if(debug_lvl > 1)
+ syslog(LOG_INFO, _("Rereading configuration file"));
close_network_connections();
clear_config();
if(read_config_file(configfilename))
projects / tinc / blobdiff