2 protocol_misc.c -- handle the meta-protocol, miscellaneous functions
3 Copyright (C) 1999-2002 Ivo Timmermans <ivo@o2w.nl>,
4 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 $Id: protocol_misc.c,v 1.1.4.6 2002/09/09 21:25:02 guus Exp $
39 #include "connection.h"
43 /* Status and error notification routines */
45 int send_status(connection_t * c, int statusno, char *statusstring)
50 statusstring = status_text[statusno];
52 return send_request(c, "%d %d %s", STATUS, statusno, statusstring);
55 int status_h(connection_t * c)
58 char statusstring[MAX_STRING_SIZE];
62 if(sscanf(c->buffer, "%*d %d " MAX_STRING, &statusno, statusstring) != 2) {
63 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "STATUS",
64 c->name, c->hostname);
68 if(debug_lvl >= DEBUG_STATUS) {
69 syslog(LOG_NOTICE, _("Status message from %s (%s): %s: %s"),
70 c->name, c->hostname, status_text[statusno], statusstring);
76 int send_error(connection_t * c, int err, char *errstring)
81 errstring = strerror(err);
83 return send_request(c, "%d %d %s", ERROR, err, errstring);
86 int error_h(connection_t * c)
89 char errorstring[MAX_STRING_SIZE];
93 if(sscanf(c->buffer, "%*d %d " MAX_STRING, &err, errorstring) != 2) {
94 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "ERROR",
95 c->name, c->hostname);
99 if(debug_lvl >= DEBUG_ERROR) {
100 syslog(LOG_NOTICE, _("Error message from %s (%s): %s: %s"),
101 c->name, c->hostname, strerror(err), errorstring);
104 terminate_connection(c, c->status.active);
109 int send_termreq(connection_t * c)
113 return send_request(c, "%d", TERMREQ);
116 int termreq_h(connection_t * c)
120 terminate_connection(c, c->status.active);
125 int send_ping(connection_t * c)
129 c->status.pinged = 1;
130 c->last_ping_time = now;
132 return send_request(c, "%d", PING);
135 int ping_h(connection_t * c)
142 int send_pong(connection_t * c)
146 return send_request(c, "%d", PONG);
149 int pong_h(connection_t * c)
153 c->status.pinged = 0;
155 /* Succesful connection, reset timeout if this is an outgoing connection. */
158 c->outgoing->timeout = 0;
163 /* Sending and receiving packets via TCP */
165 int send_tcppacket(connection_t * c, vpn_packet_t * packet)
173 x = send_request(c, "%d %hd", PACKET, packet->len);
178 return send_meta(c, packet->data, packet->len);
181 int tcppacket_h(connection_t * c)
187 if(sscanf(c->buffer, "%*d %hd", &len) != 1) {
188 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "PACKET", c->name,
193 /* Set reqlen to len, this will tell receive_meta() that a tcppacket is coming. */
202 char (*status_text[]) = {
208 char (*error_text[]) = {