2 protocol_misc.c -- handle the meta-protocol, miscellaneous functions
3 Copyright (C) 1999-2002 Ivo Timmermans <itimmermans@bigfoot.com>,
4 2000-2002 Guus Sliepen <guus@sliepen.warande.net>
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 1.2 2002/04/09 15:26:01 zarq Exp $
39 #include "connection.h"
43 /* Status and error notification routines */
45 int send_status(connection_t *c, int statusno, char *statusstring)
49 statusstring = status_text[statusno];
51 return send_request(c, "%d %d %s", STATUS, statusno, statusstring);
54 int status_h(connection_t *c)
57 char statusstring[MAX_STRING_SIZE];
59 if(sscanf(c->buffer, "%*d %d "MAX_STRING, &statusno, statusstring) != 2)
61 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "STATUS",
62 c->name, c->hostname);
66 if(debug_lvl >= DEBUG_STATUS)
68 syslog(LOG_NOTICE, _("Status message from %s (%s): %s: %s"),
69 c->name, c->hostname, status_text[statusno], statusstring);
76 int send_error(connection_t *c, int err, char *errstring)
80 errstring = strerror(err);
81 return send_request(c, "%d %d %s", ERROR, err, errstring);
84 int error_h(connection_t *c)
87 char errorstring[MAX_STRING_SIZE];
89 if(sscanf(c->buffer, "%*d %d "MAX_STRING, &err, errorstring) != 2)
91 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "ERROR",
92 c->name, c->hostname);
96 if(debug_lvl >= DEBUG_ERROR)
98 syslog(LOG_NOTICE, _("Error message from %s (%s): %s: %s"),
99 c->name, c->hostname, strerror(err), errorstring);
102 terminate_connection(c, c->status.active);
107 int send_termreq(connection_t *c)
110 return send_request(c, "%d", TERMREQ);
113 int termreq_h(connection_t *c)
116 terminate_connection(c, c->status.active);
121 int send_ping(connection_t *c)
124 c->status.pinged = 1;
125 c->last_ping_time = now;
127 return send_request(c, "%d", PING);
130 int ping_h(connection_t *c)
136 int send_pong(connection_t *c)
139 return send_request(c, "%d", PONG);
142 int pong_h(connection_t *c)
145 c->status.pinged = 0;
147 /* Succesful connection, reset timeout if this is an outgoing connection. */
150 c->outgoing->timeout = 0;
155 /* Sending and receiving packets via TCP */
157 int send_tcppacket(connection_t *c, vpn_packet_t *packet)
163 x = send_request(c, "%d %hd", PACKET, packet->len);
168 return send_meta(c, packet->data, packet->len);
171 int tcppacket_h(connection_t *c)
175 if(sscanf(c->buffer, "%*d %hd", &len) != 1)
177 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "PACKET", c->name, c->hostname);
181 /* Set reqlen to len, this will tell receive_meta() that a tcppacket is coming. */
190 char (*status_text[]) = {
196 char (*error_text[]) = {