| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 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 |  * | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 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 |  * | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 44 |  *   Required attributes: | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 45 |  * | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 46 |  *     NLBL_UNLABEL_A_ACPTFLG | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 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 | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 52 |  *   message with a LIST message on success. | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 53 |  * | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 54 |  *   Required attributes: | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 55 |  * | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 56 |  *     NLBL_UNLABEL_A_ACPTFLG | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 57 |  * | 
 | 58 |  */ | 
 | 59 |  | 
 | 60 | /* NetLabel Unlabeled commands */ | 
 | 61 | enum { | 
 | 62 | 	NLBL_UNLABEL_C_UNSPEC, | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 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 |  | 
| Paul Moore | fd38585 | 2006-09-25 15:56:37 -0700 | [diff] [blame] | 69 | /* NetLabel Unlabeled attributes */ | 
 | 70 | enum { | 
 | 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 |  | 
| Paul Moore | d15c345 | 2006-08-03 16:48:37 -0700 | [diff] [blame] | 80 | /* NetLabel protocol functions */ | 
 | 81 | int netlbl_unlabel_genl_init(void); | 
 | 82 |  | 
 | 83 | /* Process Unlabeled incoming network packets */ | 
 | 84 | int netlbl_unlabel_getattr(struct netlbl_lsm_secattr *secattr); | 
 | 85 |  | 
 | 86 | /* Set the default configuration to allow Unlabeled packets */ | 
 | 87 | int netlbl_unlabel_defconf(void); | 
 | 88 |  | 
 | 89 | #endif |