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Large cleanup:

Browse source 
- Removed hostname lookup (it blocks, and you can always do it yourself)
- Reorganized debug levels (after hints from Axel M�ller):
  0	Startup message and errors
  1	Connection logging
  2	Meta protocol information
  3	Verbose meta protocol (includes copy of transmitted requests)
  4	Packet information (logs transmission/errors of UDP packets)
  5	Verbose packet information (every single byte, not implemented yet
	to protect ourselves from filling up /var/log directories)
- Made log messages more consistent
This commit is contained in:
Guus Sliepen 2000-06-25 15:16:12 +00:00
parent 3c54a513b0
commit 7f7e158aae
6 changed files with 200 additions and 185 deletions
Download patch file Download diff file Expand all files Collapse all files

266
src/protocol.c
View file

@ -17,7 +17,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: protocol.c,v 1.28.4.1 2000/06/23 19:27:03 guus Exp $
$Id: protocol.c,v 1.28.4.2 2000/06/25 15:16:12 guus Exp $
*/
#include "config.h"
@ -50,18 +50,20 @@ int buflen;
int send_ack(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send ACK to %s"), cl->hostname);
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending ACK to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d\n", ACK);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %d:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %d:%d: %m"), __FILE__, __LINE__);
return -1;
}
syslog(LOG_NOTICE, _("Connection with %s activated."), cl->hostname);
syslog(LOG_NOTICE, _("Connection with " IP_ADDR_S " (" IP_ADDR_S ") activated"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cp
return 0;
}
@ -69,16 +71,16 @@ cp
int send_termreq(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send TERMREQ to " IP_ADDR_S),
IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending TERMREQ to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx\n", TERMREQ, myself->vpn_ip);
if(write(cl->meta_socket, buffer, buflen) < 0)
{
if(debug_lvl > 1)
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -88,15 +90,15 @@ cp
int send_timeout(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send TIMEOUT to " IP_ADDR_S),
IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending TIMEOUT to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx\n", PINGTIMEOUT, myself->vpn_ip);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -106,15 +108,15 @@ cp
int send_del_host(conn_list_t *cl, conn_list_t *new_host)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Sending delete host " IP_ADDR_S " to " IP_ADDR_S),
IP_ADDR_V(new_host->vpn_ip), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending DEL_HOST for " IP_ADDR_S " to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(new_host->vpn_ip), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx\n", DEL_HOST, new_host->vpn_ip);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -124,14 +126,15 @@ cp
int send_ping(conn_list_t *cl)
{
cp
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("pinging " IP_ADDR_S), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending PING to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d\n", PING);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -141,11 +144,15 @@ cp
int send_pong(conn_list_t *cl)
{
cp
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending PONG to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d\n", PONG);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -157,10 +164,6 @@ int send_add_host(conn_list_t *cl, conn_list_t *new_host)
ip_t real_ip;
int flags;
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Sending add host to " IP_ADDR_S),
IP_ADDR_V(cl->vpn_ip));
real_ip = new_host->real_ip;
flags = new_host->flags;
@ -177,11 +180,15 @@ cp
real_ip = myself->vpn_ip;
}
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending ADD_HOST for " IP_ADDR_S " (" IP_ADDR_S ") to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(new_host->vpn_ip), IP_ADDR_V(real_ip), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx %lx/%lx:%x %d\n", ADD_HOST, new_host->real_ip, new_host->vpn_ip, new_host->vpn_mask, new_host->port, flags);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -191,15 +198,15 @@ cp
int send_key_changed(conn_list_t *cl, conn_list_t *src)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Sending KEY_CHANGED to " IP_ADDR_S),
IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending KEY_CHANGED origin " IP_ADDR_S " to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(src->vpn_ip), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx\n", KEY_CHANGED, src->vpn_ip);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -219,15 +226,15 @@ cp
int send_basic_info(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send BASIC_INFO to " IP_ADDR_S),
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending BASIC_INFO to " IP_ADDR_S),
IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %d %lx/%lx:%x %d\n", BASIC_INFO, PROT_CURRENT, myself->vpn_ip, myself->vpn_mask, myself->port, myself->flags);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -240,15 +247,15 @@ int send_passphrase(conn_list_t *cl)
cp
encrypt_passphrase(&tmp);
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send PASSPHRASE %s to " IP_ADDR_S),
tmp.phrase, IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending PASSPHRASE to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %s\n", PASSPHRASE, tmp.phrase);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -258,21 +265,22 @@ cp
int send_public_key(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Send PUBLIC_KEY %s to " IP_ADDR_S),
my_public_key_base36, IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending PUBLIC_KEY to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %s\n", PUBLIC_KEY, my_public_key_base36);
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
return 0;
}
/* WDN doet deze functie? (GS)
int send_calculate(conn_list_t *cl, char *k)
{
cp
@ -280,12 +288,13 @@ cp
if((write(cl->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
return 0;
}
*/
int send_key_request(ip_t to)
{
@ -294,20 +303,20 @@ cp
fw = lookup_conn(to);
if(!fw)
{
syslog(LOG_ERR, _("Attempting to send key request to " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Attempting to send REQ_KEY to " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(to));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Sending out request for public key to " IP_ADDR_S),
IP_ADDR_V(fw->nexthop->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending REQ_KEY to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(fw->nexthop->vpn_ip), IP_ADDR_V(fw->nexthop->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx %lx\n", REQ_KEY, to, myself->vpn_ip);
if((write(fw->nexthop->meta_socket, buffer, buflen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
fw->status.waitingforkey = 1;
@ -324,14 +333,14 @@ cp
if(!fw)
{
syslog(LOG_ERR, _("Attempting to send key answer to " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Attempting to send ANS_KEY to " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(to));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Sending public key to " IP_ADDR_S),
IP_ADDR_V(fw->nexthop->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Sending ANS_KEY to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(fw->nexthop->vpn_ip), IP_ADDR_V(fw->nexthop->real_ip));
buflen = snprintf(buffer, MAXBUFSIZE, "%d %lx %lx %d %s\n", ANS_KEY, to, myself->vpn_ip, my_key_expiry, my_public_key_base36);
@ -383,26 +392,23 @@ cp
int basic_info_h(conn_list_t *cl)
{
cp
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got BASIC_INFO from " IP_ADDR_S), IP_ADDR_V(cl->real_ip));
if(sscanf(cl->buffer, "%*d %d %lx/%lx:%hx %d", &cl->protocol_version, &cl->vpn_ip, &cl->vpn_mask, &cl->port, &cl->flags) != 5)
{
syslog(LOG_ERR, _("got bad BASIC_INFO request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad BASIC_INFO from " IP_ADDR_S),
IP_ADDR_V(cl->real_ip));
return -1;
}
if(cl->protocol_version != PROT_CURRENT)
{
syslog(LOG_ERR, _("Peer uses incompatible protocol version %d."),
syslog(LOG_ERR, _("Peer uses incompatible protocol version %d"),
cl->protocol_version);
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got BASIC_INFO(%hd," IP_ADDR_S "," IP_ADDR_S ")"), cl->port,
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->vpn_mask));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Peer uses protocol version %d"),
cl->protocol_version);
if(cl->status.outgoing)
{
if(setup_vpn_connection(cl) < 0)
@ -426,13 +432,15 @@ cp
if(sscanf(cl->buffer, "%*d %as", &(cl->pp->phrase)) != 1)
{
syslog(LOG_ERR, _("got bad PASSPHRASE request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad PASSPHRASE from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
cl->pp->len = strlen(cl->pp->phrase);
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got PASSPHRASE"));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got PASSPHRASE from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
if(cl->status.outgoing)
send_passphrase(cl);
@ -449,23 +457,22 @@ int public_key_h(conn_list_t *cl)
cp
if(sscanf(cl->buffer, "%*d %as", &g_n) != 1)
{
syslog(LOG_ERR, _("got bad PUBLIC_KEY request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad PUBLIC_KEY from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got PUBLIC_KEY %s"), g_n);
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got PUBLIC_KEY from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
if(verify_passphrase(cl, g_n))
{
/* intruder! */
syslog(LOG_ERR, _("Intruder: passphrase does not match."));
syslog(LOG_ERR, _("Intruder: passphrase does not match!"));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_INFO, _("Passphrase OK"));
if(cl->status.outgoing)
send_public_key(cl);
else
@ -491,11 +498,13 @@ cp
int ack_h(conn_list_t *cl)
{
cp
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got ACK"));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got ACK from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cl->status.active = 1;
syslog(LOG_NOTICE, _("Connection with %s activated."), cl->hostname);
syslog(LOG_NOTICE, _("Connection with " IP_ADDR_S " (" IP_ADDR_S ") activated"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cp
return 0;
}
@ -503,7 +512,10 @@ cp
int termreq_h(conn_list_t *cl)
{
cp
syslog(LOG_NOTICE, _(IP_ADDR_S " wants to quit"), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got TERMREQ from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cl->status.termreq = 1;
terminate_connection(cl);
@ -515,8 +527,10 @@ cp
int timeout_h(conn_list_t *cl)
{
cp
if(!cl->status.active) return -1;
syslog(LOG_NOTICE, _(IP_ADDR_S " says it's gotten a timeout from us"), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got TIMEOUT from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cl->status.termreq = 1;
terminate_connection(cl);
cp
@ -532,18 +546,19 @@ cp
if(sscanf(cl->buffer, "%*d %lx", &vpn_ip) != 1)
{
syslog(LOG_ERR, _("got bad DEL_HOST request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad DEL_HOST from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got DEL_HOST for " IP_ADDR_S),
IP_ADDR_V(vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got DEL_HOST for " IP_ADDR_S " from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(vpn_ip), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
if(!(fw = lookup_conn(vpn_ip)))
{
syslog(LOG_ERR, _("Somebody wanted to delete " IP_ADDR_S " which does not exist?"),
IP_ADDR_V(vpn_ip));
syslog(LOG_ERR, _("Got DEL_HOST for " IP_ADDR_S " from " IP_ADDR_S " (" IP_ADDR_S ") which does not exist?"),
IP_ADDR_V(vpn_ip), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return 0;
}
@ -558,9 +573,10 @@ cp
int ping_h(conn_list_t *cl)
{
cp
if(!cl->status.active) return -1;
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("responding to ping from " IP_ADDR_S), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got PING from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cl->status.pinged = 0;
cl->status.got_pong = 1;
@ -572,9 +588,10 @@ cp
int pong_h(conn_list_t *cl)
{
cp
if(!cl->status.active) return -1;
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("ok, got pong from " IP_ADDR_S), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got PONG from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
cl->status.got_pong = 1;
cp
return 0;
@ -593,15 +610,14 @@ cp
return -1;
if(sscanf(cl->buffer, "%*d %lx %lx/%lx:%hx %d", &real_ip, &vpn_ip, &vpn_mask, &port, &flags) != 5)
{
syslog(LOG_ERR, _("got bad ADD_HOST request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad ADD_HOST from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Add host request from " IP_ADDR_S), IP_ADDR_V(cl->vpn_ip));
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("got ADD_HOST(" IP_ADDR_S "," IP_ADDR_S ",%hd)"),
IP_ADDR_V(vpn_ip), IP_ADDR_V(vpn_mask), port);
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got ADD_HOST from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
/*
Suggestion of Hans Bayle
@ -611,9 +627,8 @@ cp
if(fw->nexthop == cl)
notify_others(fw, cl, send_add_host);
else
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Invalid add_host request from " IP_ADDR_S),
IP_ADDR_V(cl->vpn_ip));
syslog(LOG_DEBUG, _("Invalid ADD_HOST from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return 0;
}
@ -623,7 +638,6 @@ cp
ncn->vpn_mask = vpn_mask;
ncn->port = port;
ncn->flags = flags;
ncn->hostname = hostlookup(real_ip);
ncn->nexthop = cl;
ncn->next = conn_list;
conn_list = ncn;
@ -642,13 +656,14 @@ cp
if(!cl->status.active) return -1;
if(sscanf(cl->buffer, "%*d %lx %lx", &to, &from) != 2)
{
syslog(LOG_ERR, _("got bad request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad REQ_KEY from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got REQ_KEY from " IP_ADDR_S " for " IP_ADDR_S),
IP_ADDR_V(from), IP_ADDR_V(to));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got REQ_KEY origin " IP_ADDR_S " destination " IP_ADDR_S " from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(from), IP_ADDR_V(to), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
if((to & myself->vpn_mask) == (myself->vpn_ip & myself->vpn_mask))
{ /* hey! they want something from ME! :) */
@ -660,20 +675,20 @@ cp
if(!fw)
{
syslog(LOG_ERR, _("Attempting to forward key request to " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Attempting to forward REQ_KEY to " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(to));
return -1;
}
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("Forwarding request for public key to " IP_ADDR_S),
IP_ADDR_V(fw->nexthop->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Forwarding REQ_KEY to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(fw->nexthop->vpn_ip), IP_ADDR_V(fw->nexthop->real_ip));
cl->buffer[cl->reqlen-1] = '\n';
if(write(fw->nexthop->meta_socket, cl->buffer, cl->reqlen) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -726,23 +741,22 @@ cp
if(!cl->status.active) return -1;
if(sscanf(cl->buffer, "%*d %lx %lx %d %as", &to, &from, &expiry, &key) != 4)
{
syslog(LOG_ERR, _("got bad ANS_KEY request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad ANS_KEY from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("got ANS_KEY from " IP_ADDR_S " for " IP_ADDR_S),
IP_ADDR_V(from), IP_ADDR_V(to));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got ANS_KEY origin " IP_ADDR_S " destination " IP_ADDR_S " from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(from), IP_ADDR_V(to), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
if(to == myself->vpn_ip)
{ /* hey! that key's for ME! :) */
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Yeah! key arrived. Now do something with it."));
gk = lookup_conn(from);
if(!gk)
{
syslog(LOG_ERR, _("Receiving key from " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Receiving ANS_KEY from " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(from));
return -1;
}
@ -758,20 +772,20 @@ cp
if(!fw)
{
syslog(LOG_ERR, _("Attempting to forward key to " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Attempting to forward ANS_KEY to " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(to));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("Forwarding public key to " IP_ADDR_S),
IP_ADDR_V(fw->nexthop->vpn_ip));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Forwarding ANS_KEY to " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(fw->nexthop->vpn_ip), IP_ADDR_V(fw->nexthop->real_ip));
cl->buffer[cl->reqlen-1] = '\n';
if((write(fw->nexthop->meta_socket, cl->buffer, cl->reqlen)) < 0)
{
syslog(LOG_ERR, _("send failed: %s:%d: %m"), __FILE__, __LINE__);
syslog(LOG_ERR, _("Send failed: %s:%d: %m"), __FILE__, __LINE__);
return -1;
}
cp
@ -786,19 +800,20 @@ cp
if(!cl->status.active) return -1;
if(sscanf(cl->buffer, "%*d %lx", &from) != 1)
{
syslog(LOG_ERR, _("got bad ANS_KEY request: %s"), cl->buffer);
syslog(LOG_ERR, _("Got bad KEY_CHANGED from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
return -1;
}
if(debug_lvl > 2)
syslog(LOG_DEBUG, _("got KEY_CHANGED from " IP_ADDR_S),
IP_ADDR_V(from));
if(debug_lvl > 1)
syslog(LOG_DEBUG, _("Got KEY_CHANGED origin " IP_ADDR_S " from " IP_ADDR_S " (" IP_ADDR_S ")"),
IP_ADDR_V(from), IP_ADDR_V(cl->vpn_ip), IP_ADDR_V(cl->real_ip));
ik = lookup_conn(from);
if(!ik)
{
syslog(LOG_ERR, _("Got changed key from " IP_ADDR_S ", which does not exist?"),
syslog(LOG_ERR, _("Got KEY_CHANGED from " IP_ADDR_S ", which does not exist?"),
IP_ADDR_V(from));
return -1;
}
@ -806,9 +821,6 @@ cp
ik->status.validkey = 0;
ik->status.waitingforkey = 0;
if(debug_lvl > 3)
syslog(LOG_DEBUG, _("Forwarding key invalidation request"));
notify_others(cl, ik, send_key_changed);
cp
return 0;