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kernel/linux-imx6_3.14.28/net/netlabel/netlabel_mgmt.h 6.16 KB
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  /*
   * NetLabel Management Support
   *
   * This file defines the management functions for the NetLabel system.  The
   * NetLabel system manages static and dynamic label mappings for network
   * protocols such as CIPSO and RIPSO.
   *
   * Author: Paul Moore <paul@paul-moore.com>
   *
   */
  
  /*
   * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
   *
   * This program is free software;  you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY;  without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
   * the GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program;  if not, see <http://www.gnu.org/licenses/>.
   *
   */
  
  #ifndef _NETLABEL_MGMT_H
  #define _NETLABEL_MGMT_H
  
  #include <net/netlabel.h>
  #include <linux/atomic.h>
  
  /*
   * The following NetLabel payloads are supported by the management interface.
   *
   * o ADD:
   *   Sent by an application to add a domain mapping to the NetLabel system.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_DOMAIN
   *     NLBL_MGMT_A_PROTOCOL
   *
   *   If IPv4 is specified the following attributes are required:
   *
   *     NLBL_MGMT_A_IPV4ADDR
   *     NLBL_MGMT_A_IPV4MASK
   *
   *   If IPv6 is specified the following attributes are required:
   *
   *     NLBL_MGMT_A_IPV6ADDR
   *     NLBL_MGMT_A_IPV6MASK
   *
   *   If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required:
   *
   *     NLBL_MGMT_A_CV4DOI
   *
   *   If using NETLBL_NLTYPE_UNLABELED no other attributes are required.
   *
   * o REMOVE:
   *   Sent by an application to remove a domain mapping from the NetLabel
   *   system.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_DOMAIN
   *
   * o LISTALL:
   *   This message can be sent either from an application or by the kernel in
   *   response to an application generated LISTALL message.  When sent by an
   *   application there is no payload and the NLM_F_DUMP flag should be set.
   *   The kernel should respond with a series of the following messages.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_DOMAIN
   *
   *   If the IP address selectors are not used the following attribute is
   *   required:
   *
   *     NLBL_MGMT_A_PROTOCOL
   *
   *   If the IP address selectors are used then the following attritbute is
   *   required:
   *
   *     NLBL_MGMT_A_SELECTORLIST
   *
   *   If the mapping is using the NETLBL_NLTYPE_CIPSOV4 type then the following
   *   attributes are required:
   *
   *     NLBL_MGMT_A_CV4DOI
   *
   *   If the mapping is using the NETLBL_NLTYPE_UNLABELED type no other
   *   attributes are required.
   *
   * o ADDDEF:
   *   Sent by an application to set the default domain mapping for the NetLabel
   *   system.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_PROTOCOL
   *
   *   If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required:
   *
   *     NLBL_MGMT_A_CV4DOI
   *
   *   If using NETLBL_NLTYPE_UNLABELED no other attributes are required.
   *
   * o REMOVEDEF:
   *   Sent by an application to remove the default domain mapping from the
   *   NetLabel system, there is no payload.
   *
   * o LISTDEF:
   *   This message can be sent either from an application or by the kernel in
   *   response to an application generated LISTDEF message.  When sent by an
   *   application there is no payload.  On success the kernel should send a
   *   response using the following format.
   *
   *   If the IP address selectors are not used the following attribute is
   *   required:
   *
   *     NLBL_MGMT_A_PROTOCOL
   *
   *   If the IP address selectors are used then the following attritbute is
   *   required:
   *
   *     NLBL_MGMT_A_SELECTORLIST
   *
   *   If the mapping is using the NETLBL_NLTYPE_CIPSOV4 type then the following
   *   attributes are required:
   *
   *     NLBL_MGMT_A_CV4DOI
   *
   *   If the mapping is using the NETLBL_NLTYPE_UNLABELED type no other
   *   attributes are required.
   *
   * o PROTOCOLS:
   *   Sent by an application to request a list of configured NetLabel protocols
   *   in the kernel.  When sent by an application there is no payload and the
   *   NLM_F_DUMP flag should be set.  The kernel should respond with a series of
   *   the following messages.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_PROTOCOL
   *
   * o VERSION:
   *   Sent by an application to request the NetLabel version.  When sent by an
   *   application there is no payload.  This message type is also used by the
   *   kernel to respond to an VERSION request.
   *
   *   Required attributes:
   *
   *     NLBL_MGMT_A_VERSION
   *
   */
  
  /* NetLabel Management commands */
  enum {
  	NLBL_MGMT_C_UNSPEC,
  	NLBL_MGMT_C_ADD,
  	NLBL_MGMT_C_REMOVE,
  	NLBL_MGMT_C_LISTALL,
  	NLBL_MGMT_C_ADDDEF,
  	NLBL_MGMT_C_REMOVEDEF,
  	NLBL_MGMT_C_LISTDEF,
  	NLBL_MGMT_C_PROTOCOLS,
  	NLBL_MGMT_C_VERSION,
  	__NLBL_MGMT_C_MAX,
  };
  
  /* NetLabel Management attributes */
  enum {
  	NLBL_MGMT_A_UNSPEC,
  	NLBL_MGMT_A_DOMAIN,
  	/* (NLA_NUL_STRING)
  	 * the NULL terminated LSM domain string */
  	NLBL_MGMT_A_PROTOCOL,
  	/* (NLA_U32)
  	 * the NetLabel protocol type (defined by NETLBL_NLTYPE_*) */
  	NLBL_MGMT_A_VERSION,
  	/* (NLA_U32)
  	 * the NetLabel protocol version number (defined by
  	 * NETLBL_PROTO_VERSION) */
  	NLBL_MGMT_A_CV4DOI,
  	/* (NLA_U32)
  	 * the CIPSOv4 DOI value */
  	NLBL_MGMT_A_IPV6ADDR,
  	/* (NLA_BINARY, struct in6_addr)
  	 * an IPv6 address */
  	NLBL_MGMT_A_IPV6MASK,
  	/* (NLA_BINARY, struct in6_addr)
  	 * an IPv6 address mask */
  	NLBL_MGMT_A_IPV4ADDR,
  	/* (NLA_BINARY, struct in_addr)
  	 * an IPv4 address */
  	NLBL_MGMT_A_IPV4MASK,
  	/* (NLA_BINARY, struct in_addr)
  	 * and IPv4 address mask */
  	NLBL_MGMT_A_ADDRSELECTOR,
  	/* (NLA_NESTED)
  	 * an IP address selector, must contain an address, mask, and protocol
  	 * attribute plus any protocol specific attributes */
  	NLBL_MGMT_A_SELECTORLIST,
  	/* (NLA_NESTED)
  	 * the selector list, there must be at least one
  	 * NLBL_MGMT_A_ADDRSELECTOR attribute */
  	__NLBL_MGMT_A_MAX,
  };
  #define NLBL_MGMT_A_MAX (__NLBL_MGMT_A_MAX - 1)
  
  /* NetLabel protocol functions */
  int netlbl_mgmt_genl_init(void);
  
  /* NetLabel configured protocol reference counter */
  extern atomic_t netlabel_mgmt_protocount;
  
  #endif