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 1.1.4.9 2003/07/06 23:16:29 guus Exp $
38 #include "connection.h"
45 static char (*status_text[]) = {
51 static char (*error_text[]) = {
55 /* Status and error notification routines */
57 int send_status(connection_t *c, int statusno, char *statusstring)
62 statusstring = status_text[statusno];
64 return send_request(c, "%d %d %s", STATUS, statusno, statusstring);
67 int status_h(connection_t *c)
70 char statusstring[MAX_STRING_SIZE];
74 if(sscanf(c->buffer, "%*d %d " MAX_STRING, &statusno, statusstring) != 2) {
75 logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "STATUS",
76 c->name, c->hostname);
80 logger(DEBUG_STATUS, LOG_NOTICE, _("Status message from %s (%s): %s: %s"),
81 c->name, c->hostname, status_text[statusno], statusstring);
86 int send_error(connection_t *c, int err, char *errstring)
91 errstring = strerror(err);
93 return send_request(c, "%d %d %s", ERROR, err, errstring);
96 int error_h(connection_t *c)
99 char errorstring[MAX_STRING_SIZE];
103 if(sscanf(c->buffer, "%*d %d " MAX_STRING, &err, errorstring) != 2) {
104 logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "ERROR",
105 c->name, c->hostname);
109 logger(DEBUG_ERROR, LOG_NOTICE, _("Error message from %s (%s): %s: %s"),
110 c->name, c->hostname, strerror(err), errorstring);
112 terminate_connection(c, c->status.active);
117 int send_termreq(connection_t *c)
121 return send_request(c, "%d", TERMREQ);
124 int termreq_h(connection_t *c)
128 terminate_connection(c, c->status.active);
133 int send_ping(connection_t *c)
137 c->status.pinged = 1;
138 c->last_ping_time = now;
140 return send_request(c, "%d", PING);
143 int ping_h(connection_t *c)
150 int send_pong(connection_t *c)
154 return send_request(c, "%d", PONG);
157 int pong_h(connection_t *c)
161 c->status.pinged = 0;
163 /* Succesful connection, reset timeout if this is an outgoing connection. */
166 c->outgoing->timeout = 0;
171 /* Sending and receiving packets via TCP */
173 int send_tcppacket(connection_t *c, vpn_packet_t *packet)
181 x = send_request(c, "%d %hd", PACKET, packet->len);
186 return send_meta(c, packet->data, packet->len);
189 int tcppacket_h(connection_t *c)
195 if(sscanf(c->buffer, "%*d %hd", &len) != 1) {
196 logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "PACKET", c->name,
201 /* Set reqlen to len, this will tell receive_meta() that a tcppacket is coming. */