2 protocol_subnet.c -- handle the meta-protocol, subnets
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_subnet.c,v 1.1.4.10 2003/07/06 22:11:33 guus Exp $
40 #include "connection.h"
46 int send_add_subnet(connection_t *c, subnet_t *subnet)
53 x = send_request(c, "%d %lx %s %s", ADD_SUBNET, random(),
54 subnet->owner->name, netstr = net2str(subnet));
61 int add_subnet_h(connection_t *c)
63 char subnetstr[MAX_STRING_SIZE];
64 char name[MAX_STRING_SIZE];
70 if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
71 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "ADD_SUBNET", c->name,
76 /* Check if owner name is a valid */
79 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name,
80 c->hostname, _("invalid name"));
84 /* Check if subnet string is valid */
86 s = str2net(subnetstr);
89 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name,
90 c->hostname, _("invalid subnet string"));
94 if(seen_request(c->buffer))
97 /* Check if the owner of the new subnet is in the connection list */
99 owner = lookup_node(name);
103 owner->name = xstrdup(name);
107 /* Check if we already know this subnet */
109 if(lookup_subnet(owner, s)) {
114 /* If we don't know this subnet, but we are the owner, retaliate with a DEL_SUBNET */
116 if(owner == myself) {
117 logger(DEBUG_PROTOCOL, LOG_WARNING, _("Got %s from %s (%s) for ourself"),
118 "ADD_SUBNET", c->name, c->hostname);
120 send_del_subnet(c, s);
124 /* If everything is correct, add the subnet to the list of the owner */
126 subnet_add(owner, s);
135 int send_del_subnet(connection_t *c, subnet_t *s)
144 x = send_request(c, "%d %lx %s %s", DEL_SUBNET, random(), s->owner->name, netstr);
151 int del_subnet_h(connection_t *c)
153 char subnetstr[MAX_STRING_SIZE];
154 char name[MAX_STRING_SIZE];
160 if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
161 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "DEL_SUBNET", c->name,
166 /* Check if owner name is a valid */
169 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
170 c->hostname, _("invalid name"));
174 /* Check if the owner of the new subnet is in the connection list */
176 owner = lookup_node(name);
179 logger(DEBUG_PROTOCOL, LOG_WARNING, _("Got %s from %s (%s) for %s which is not in our node tree"),
180 "DEL_SUBNET", c->name, c->hostname, name);
184 /* Check if subnet string is valid */
186 s = str2net(subnetstr);
189 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
190 c->hostname, _("invalid subnet string"));
194 if(seen_request(c->buffer))
197 /* If everything is correct, delete the subnet from the list of the owner */
201 find = lookup_subnet(owner, s);
206 logger(DEBUG_PROTOCOL, LOG_WARNING, _("Got %s from %s (%s) for %s which does not appear in his subnet tree"),
207 "DEL_SUBNET", c->name, c->hostname, name);
211 /* If we are the owner of this subnet, retaliate with an ADD_SUBNET */
213 if(owner == myself) {
214 logger(DEBUG_PROTOCOL, LOG_WARNING, _("Got %s from %s (%s) for ourself"),
215 "DEL_SUBNET", c->name, c->hostname);
216 send_add_subnet(c, find);
224 /* Finally, delete it. */
226 subnet_del(owner, find);