/src/ntopng/src/flow_checks/UnexpectedDHCPServer.cpp
Line | Count | Source |
1 | | /* |
2 | | * |
3 | | * (C) 2013-24 - ntop.org |
4 | | * |
5 | | * |
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 3 of the License, or |
9 | | * (at your option) any later version. |
10 | | * |
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. |
15 | | * |
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 Foundation, |
18 | | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
19 | | * |
20 | | */ |
21 | | |
22 | | #include "ntop_includes.h" |
23 | | #include "flow_checks_includes.h" |
24 | | |
25 | | /* ***************************************************** */ |
26 | | |
27 | 0 | bool UnexpectedDHCPServer::isAllowedHost(Flow* f) { |
28 | 0 | if (ntop->getPrefs()->getConfiguredDHCPServers()->isEmptyConfiguration()) |
29 | 0 | return (true); |
30 | 0 | else { |
31 | 0 | IpAddress* ip = f->get_cli_ip_addr(); |
32 | |
|
33 | 0 | if (ip == NULL || ip->isBroadcastAddress()) return (true); |
34 | | |
35 | 0 | return (ntop->getPrefs()->isDHCPServer(ip, f->get_vlan_id()) || |
36 | 0 | ntop->getPrefs()->isDHCPServer( |
37 | 0 | ip, 0 /* Check for the VLAN 0 (no vlan) too */)); |
38 | 0 | } |
39 | 0 | } |
40 | | |
41 | | /* ***************************************************** */ |