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 1.1.4.9 2002/09/09 22:33:13 guus Exp $
41 #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 if(debug_lvl >= DEBUG_PROTOCOL)
118 syslog(LOG_WARNING, _("Got %s from %s (%s) for ourself"),
119 "ADD_SUBNET", c->name, c->hostname);
121 send_del_subnet(c, s);
125 /* If everything is correct, add the subnet to the list of the owner */
127 subnet_add(owner, s);
136 int send_del_subnet(connection_t *c, subnet_t *s)
145 x = send_request(c, "%d %lx %s %s", DEL_SUBNET, random(), s->owner->name, netstr);
152 int del_subnet_h(connection_t *c)
154 char subnetstr[MAX_STRING_SIZE];
155 char name[MAX_STRING_SIZE];
161 if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
162 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "DEL_SUBNET", c->name,
167 /* Check if owner name is a valid */
170 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
171 c->hostname, _("invalid name"));
175 /* Check if the owner of the new subnet is in the connection list */
177 owner = lookup_node(name);
180 if(debug_lvl >= DEBUG_PROTOCOL)
181 syslog(LOG_WARNING, _("Got %s from %s (%s) for %s which is not in our node tree"),
182 "DEL_SUBNET", c->name, c->hostname, name);
186 /* Check if subnet string is valid */
188 s = str2net(subnetstr);
191 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
192 c->hostname, _("invalid subnet string"));
196 if(seen_request(c->buffer))
199 /* If everything is correct, delete the subnet from the list of the owner */
203 find = lookup_subnet(owner, s);
208 if(debug_lvl >= DEBUG_PROTOCOL)
209 syslog(LOG_WARNING, _("Got %s from %s (%s) for %s which does not appear in his subnet tree"),
210 "DEL_SUBNET", c->name, c->hostname, name);
214 /* If we are the owner of this subnet, retaliate with an ADD_SUBNET */
216 if(owner == myself) {
217 if(debug_lvl >= DEBUG_PROTOCOL)
218 syslog(LOG_WARNING, _("Got %s from %s (%s) for ourself"),
219 "DEL_SUBNET", c->name, c->hostname);
220 send_add_subnet(c, find);
228 /* Finally, delete it. */
230 subnet_del(owner, find);