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 1.1.4.6 2002/09/04 16:26:45 guus Exp $
41 #include "connection.h"
46 int send_add_subnet(connection_t *c, subnet_t *subnet)
51 x = send_request(c, "%d %lx %s %s", ADD_SUBNET, random(),
52 subnet->owner->name, netstr = net2str(subnet));
58 int add_subnet_h(connection_t *c)
60 char subnetstr[MAX_STRING_SIZE];
61 char name[MAX_STRING_SIZE];
65 if(sscanf(c->buffer, "%*d %*x "MAX_STRING" "MAX_STRING, name, subnetstr) != 2)
67 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "ADD_SUBNET", c->name, c->hostname);
71 /* Check if owner name is a valid */
75 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name, c->hostname, _("invalid name"));
79 /* Check if subnet string is valid */
81 if(!(s = str2net(subnetstr)))
83 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name, c->hostname, _("invalid subnet string"));
87 if(seen_request(c->buffer))
90 /* Check if the owner of the new subnet is in the connection list */
92 owner = lookup_node(name);
97 owner->name = xstrdup(name);
101 /* Check if we already know this subnet */
103 if(lookup_subnet(owner, s))
109 /* If we don't know this subnet, but we are the owner, retaliate with a DEL_SUBNET */
113 if(debug_lvl >= DEBUG_PROTOCOL)
114 syslog(LOG_WARNING, _("Got %s from %s (%s) for ourself"), "ADD_SUBNET", c->name, c->hostname);
116 send_del_subnet(c, s);
120 /* If everything is correct, add the subnet to the list of the owner */
122 subnet_add(owner, s);
131 int send_del_subnet(connection_t *c, subnet_t *s)
137 x = send_request(c, "%d %lx %s %s", DEL_SUBNET, random(), s->owner->name, netstr);
143 int del_subnet_h(connection_t *c)
145 char subnetstr[MAX_STRING_SIZE];
146 char name[MAX_STRING_SIZE];
150 if(sscanf(c->buffer, "%*d %*x "MAX_STRING" "MAX_STRING, name, subnetstr) != 2)
152 syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "DEL_SUBNET", c->name, c->hostname);
156 /* Check if owner name is a valid */
160 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name, c->hostname, _("invalid name"));
164 /* Check if the owner of the new subnet is in the connection list */
166 if(!(owner = lookup_node(name)))
168 if(debug_lvl >= DEBUG_PROTOCOL)
169 syslog(LOG_WARNING, _("Got %s from %s (%s) for %s which is not in our node tree"),
170 "DEL_SUBNET", c->name, c->hostname, name);
174 /* Check if subnet string is valid */
176 if(!(s = str2net(subnetstr)))
178 syslog(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name, c->hostname, _("invalid subnet string"));
182 if(seen_request(c->buffer))
185 /* If everything is correct, delete the subnet from the list of the owner */
189 find = lookup_subnet(owner, s);
195 if(debug_lvl >= DEBUG_PROTOCOL)
196 syslog(LOG_WARNING, _("Got %s from %s (%s) for %s which does not appear in his subnet tree"),
197 "DEL_SUBNET", c->name, c->hostname, name);
201 /* If we are the owner of this subnet, retaliate with an ADD_SUBNET */
205 if(debug_lvl >= DEBUG_PROTOCOL)
206 syslog(LOG_WARNING, _("Got %s from %s (%s) for ourself"), "DEL_SUBNET", c->name, c->hostname);
207 send_add_subnet(c, find);
215 /* Finally, delete it. */
217 subnet_del(owner, find);