1/*
2 * NetLabel Unlabeled Support
3 *
4 * This file defines functions for dealing with unlabeled packets for the
5 * NetLabel system.  The NetLabel system manages static and dynamic label
6 * mappings for network protocols such as CIPSO and RIPSO.
7 *
8 * Author: Paul Moore <paul.moore@hp.com>
9 *
10 */
11
12/*
13 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
14 *
15 * This program is free software;  you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY;  without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
23 * the GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program;  if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 *
29 */
30
31#ifndef _NETLABEL_UNLABELED_H
32#define _NETLABEL_UNLABELED_H
33
34#include <net/netlabel.h>
35
36/*
37 * The following NetLabel payloads are supported by the Unlabeled subsystem.
38 *
39 * o ACCEPT
40 *   This message is sent from an application to specify if the kernel should
41 *   allow unlabled packets to pass if they do not match any of the static
42 *   mappings defined in the unlabeled module.
43 *
44 *   Required attributes:
45 *
46 *     NLBL_UNLABEL_A_ACPTFLG
47 *
48 * o LIST
49 *   This message can be sent either from an application or by the kernel in
50 *   response to an application generated LIST message.  When sent by an
51 *   application there is no payload.  The kernel should respond to a LIST
52 *   message with a LIST message on success.
53 *
54 *   Required attributes:
55 *
56 *     NLBL_UNLABEL_A_ACPTFLG
57 *
58 */
59
60/* NetLabel Unlabeled commands */
61enum {
62	NLBL_UNLABEL_C_UNSPEC,
63	NLBL_UNLABEL_C_ACCEPT,
64	NLBL_UNLABEL_C_LIST,
65	__NLBL_UNLABEL_C_MAX,
66};
67#define NLBL_UNLABEL_C_MAX (__NLBL_UNLABEL_C_MAX - 1)
68
69/* NetLabel Unlabeled attributes */
70enum {
71	NLBL_UNLABEL_A_UNSPEC,
72	NLBL_UNLABEL_A_ACPTFLG,
73	/* (NLA_U8)
74	 * if true then unlabeled packets are allowed to pass, else unlabeled
75	 * packets are rejected */
76	__NLBL_UNLABEL_A_MAX,
77};
78#define NLBL_UNLABEL_A_MAX (__NLBL_UNLABEL_A_MAX - 1)
79
80/* NetLabel protocol functions */
81int netlbl_unlabel_genl_init(void);
82
83/* Process Unlabeled incoming network packets */
84int netlbl_unlabel_getattr(struct netlbl_lsm_secattr *secattr);
85
86/* Set the default configuration to allow Unlabeled packets */
87int netlbl_unlabel_defconf(void);
88
89#endif
90