- {
- if(debug_lvl >= DEBUG_CONNECTIONS)
- syslog(LOG_NOTICE, _("Removing old entry for %s (%s)"),
- old->name, old->hostname);
- old->status.active = 0;
- terminate_connection(old);
- }
- }
-
- /* Fill in rest of conn_list structure */
-
- new->nexthop = cl;
- new->status.active = 1;
-
- /* Hook it up into the conn_list */
-
- conn_list_add(conn_list, new);
-
- /* Tell the rest about the new host */
-/* FIXME: reprogram this.
- notify_others(new, cl, send_add_host);
-*/
-cp
- return 0;
-}
-
-int send_del_host(conn_list_t *cl, conn_list_t *other)
-{
-cp
- return send_request(cl, "%d %s %s %lx:%d %lx", DEL_HOST,
- myself->name, other->name, other->address, other->port, other->options);
-}
-
-int del_host_h(conn_list_t *cl)
-{
- char *name;
- char *sender;
- ip_t address;
- port_t port;
- int options;
- conn_list_t *old, *hisuplink;
-
-cp
- if(sscanf(cl->buffer, "%*d %as %as %lx:%d %lx", &sender, &name, &address, &port, &options) != 5)
- {
- syslog(LOG_ERR, _("Got bad DEL_HOST from %s (%s)"),
- cl->name, cl->hostname);
- return -1;
- }
-
- /* Check if identity is a valid name */
-
- if(check_id(name) || check_id(sender))
- {
- syslog(LOG_ERR, _("Got bad DEL_HOST from %s (%s): invalid identity name"), cl->name, cl->hostname);
- free(name); free(sender);
- return -1;
- }
-
- /* Check if somebody tries to delete ourself */
-
- if(!strcmp(name, myself->name))
- {
- syslog(LOG_ERR, _("Warning: got DEL_HOST from %s (%s) for ourself, restarting"),
- cl->name, cl->hostname);
- free(name); free(sender);
- sighup = 1;
- return 0;
- }
-
- /* We got an ADD_HOST from ourself!? */
-
- if(!strcmp(sender, myself->name))
- {
- syslog(LOG_ERR, _("Warning: got DEL_HOST from %s (%s) from ourself, restarting"), cl->name, cl->hostname);
- sighup = 1;
- free(name); free(sender);
- return 0;
- }
-
- /* Lookup his uplink */
-
- if(!(hisuplink = lookup_id(sender)))
- {
- syslog(LOG_ERR, _("Got DEL_HOST from %s (%s) with origin %s which is not in our connection list"),
- cl->name, cl->hostname, sender);
- free(name); free(sender);
- return -1;
- }
-
- free(sender);
-
- /* Check if the new host already exists in the connnection list */
-
- if(!(old = lookup_id(name)))
- {
- syslog(LOG_ERR, _("Got DEL_HOST from %s (%s) for %s which is not in our connection list"),
- name, cl->name, cl->hostname);
- free(name);
- return -1;
- }
-
- /* Check if the rest matches */
-
- if(address!=old->address || port!=old->port || options!=old->options || hisuplink!=old->hisuplink || cl!=old->myuplink)
- {
- syslog(LOG_WARNING, _("Got DEL_HOST from %s (%s) for %s which doesn't match"), cl->name, cl->hostname, old->name);
- return 0;
- }
-
- /* Ok, since EVERYTHING seems to check out all right, delete it */
-
- old->status.termreq = 1;
- old->status.active = 0;
-
- terminate_connection(old);
-cp
- return 0;
-}
-
-/* Status and error notification routines */
-
-int send_status(conn_list_t *cl, int statusno, char *statusstring)
-{
-cp
- if(!statusstring)
- statusstring = status_text[statusno];
-cp
- return send_request(cl, "%d %d %s", STATUS, statusno, statusstring);
-}
-
-int status_h(conn_list_t *cl)
-{
- int statusno;
- char *statusstring;
-cp
- if(sscanf(cl->buffer, "%*d %d %as", &statusno, &statusstring) != 2)
- {
- syslog(LOG_ERR, _("Got bad STATUS from %s (%s)"),
- cl->name, cl->hostname);
- return -1;
- }
-
- if(debug_lvl >= DEBUG_STATUS)
- {
- syslog(LOG_NOTICE, _("Status message from %s (%s): %s: %s"),
- cl->name, cl->hostname, status_text[statusno], statusstring);
- }
-
-cp
- free(statusstring);
- return 0;
-}
-
-int send_error(conn_list_t *cl, int errno, char *errstring)
-{
-cp
- if(!errstring)
- errstring = strerror(errno);
- return send_request(cl, "%d %d %s", ERROR, errno, errstring);
-}
-
-int error_h(conn_list_t *cl)
-{
- int errno;
- char *errorstring;
-cp
- if(sscanf(cl->buffer, "%*d %d %as", &errno, &errorstring) != 2)
- {
- syslog(LOG_ERR, _("Got bad ERROR from %s (%s)"),
- cl->name, cl->hostname);
- return -1;
- }
-
- if(debug_lvl >= DEBUG_ERROR)
- {
- syslog(LOG_NOTICE, _("Error message from %s (%s): %s: %s"),
- cl->name, cl->hostname, strerror(errno), errorstring);
- }
-
- free(errorstring);
- cl->status.termreq = 1;
- terminate_connection(cl);
-cp
- return 0;
-}
-
-int send_termreq(conn_list_t *cl)
-{
-cp
- return send_request(cl, "%d", TERMREQ);
-}
-
-int termreq_h(conn_list_t *cl)
-{
-cp
- cl->status.termreq = 1;
- terminate_connection(cl);
-cp
- return 0;
-}
-
-/* Keepalive routines - FIXME: needs a closer look */
-
-int send_ping(conn_list_t *cl)
-{
- cl->status.pinged = 1;
-cp
- return send_request(cl, "%d", PING);
-}
-
-int ping_h(conn_list_t *cl)
-{
-cp
- return send_pong(cl);
-}
-
-int send_pong(conn_list_t *cl)
-{
-cp
- return send_request(cl, "%d", PONG);
-}
-
-int pong_h(conn_list_t *cl)
-{
-cp
- cl->status.got_pong = 1;
-cp
- return 0;
-}
-
-/* Key exchange */
-
-int send_key_changed(conn_list_t *from, conn_list_t *cl)
-{
- conn_list_t *p;
-cp
- for(p = conn_list; p != NULL; p = p->next)
- {
- if(p!=cl && p->status.meta && p->status.active)
- send_request(p, "%d %s", KEY_CHANGED,
- from->name);