/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* NetLabel CIPSO/IPv4 Support
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*
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* This file defines the CIPSO/IPv4 functions for the NetLabel system. The
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* NetLabel system manages static and dynamic label mappings for network
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* protocols such as CIPSO and RIPSO.
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*
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* Author: Paul Moore <paul@paul-moore.com>
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*/
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/*
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* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
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*/
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#ifndef _NETLABEL_CIPSO_V4
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#define _NETLABEL_CIPSO_V4
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#include <net/netlabel.h>
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/*
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* The following NetLabel payloads are supported by the CIPSO subsystem.
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*
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* o ADD:
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* Sent by an application to add a new DOI mapping table.
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*
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* Required attributes:
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*
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* NLBL_CIPSOV4_A_DOI
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* NLBL_CIPSOV4_A_MTYPE
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* NLBL_CIPSOV4_A_TAGLST
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*
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* If using CIPSO_V4_MAP_TRANS the following attributes are required:
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*
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* NLBL_CIPSOV4_A_MLSLVLLST
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* NLBL_CIPSOV4_A_MLSCATLST
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*
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* If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
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* are required.
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*
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* o REMOVE:
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* Sent by an application to remove a specific DOI mapping table from the
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* CIPSO V4 system.
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*
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* Required attributes:
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*
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* NLBL_CIPSOV4_A_DOI
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*
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* o LIST:
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* Sent by an application to list the details of a DOI definition. On
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* success the kernel should send a response using the following format.
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*
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* Required attributes:
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*
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* NLBL_CIPSOV4_A_DOI
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*
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* The valid response message format depends on the type of the DOI mapping,
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* the defined formats are shown below.
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*
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* Required attributes:
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*
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* NLBL_CIPSOV4_A_MTYPE
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* NLBL_CIPSOV4_A_TAGLST
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*
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* If using CIPSO_V4_MAP_TRANS the following attributes are required:
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*
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* NLBL_CIPSOV4_A_MLSLVLLST
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* NLBL_CIPSOV4_A_MLSCATLST
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*
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* If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
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* are required.
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*
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* o LISTALL:
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* This message is sent by an application to list the valid DOIs on the
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* system. When sent by an application there is no payload and the
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* NLM_F_DUMP flag should be set. The kernel should respond with a series of
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* the following messages.
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*
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* Required attributes:
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*
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* NLBL_CIPSOV4_A_DOI
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* NLBL_CIPSOV4_A_MTYPE
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*
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*/
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/* NetLabel CIPSOv4 commands */
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enum {
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NLBL_CIPSOV4_C_UNSPEC,
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NLBL_CIPSOV4_C_ADD,
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NLBL_CIPSOV4_C_REMOVE,
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NLBL_CIPSOV4_C_LIST,
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NLBL_CIPSOV4_C_LISTALL,
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__NLBL_CIPSOV4_C_MAX,
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};
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/* NetLabel CIPSOv4 attributes */
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enum {
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NLBL_CIPSOV4_A_UNSPEC,
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NLBL_CIPSOV4_A_DOI,
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/* (NLA_U32)
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* the DOI value */
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NLBL_CIPSOV4_A_MTYPE,
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/* (NLA_U32)
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* the mapping table type (defined in the cipso_ipv4.h header as
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* CIPSO_V4_MAP_*) */
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NLBL_CIPSOV4_A_TAG,
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/* (NLA_U8)
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* a CIPSO tag type, meant to be used within a NLBL_CIPSOV4_A_TAGLST
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* attribute */
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NLBL_CIPSOV4_A_TAGLST,
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/* (NLA_NESTED)
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* the CIPSO tag list for the DOI, there must be at least one
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* NLBL_CIPSOV4_A_TAG attribute, tags listed first are given higher
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* priorirty when sending packets */
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NLBL_CIPSOV4_A_MLSLVLLOC,
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/* (NLA_U32)
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* the local MLS sensitivity level */
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NLBL_CIPSOV4_A_MLSLVLREM,
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/* (NLA_U32)
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* the remote MLS sensitivity level */
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NLBL_CIPSOV4_A_MLSLVL,
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/* (NLA_NESTED)
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* a MLS sensitivity level mapping, must contain only one attribute of
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* each of the following types: NLBL_CIPSOV4_A_MLSLVLLOC and
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* NLBL_CIPSOV4_A_MLSLVLREM */
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NLBL_CIPSOV4_A_MLSLVLLST,
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/* (NLA_NESTED)
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* the CIPSO level mappings, there must be at least one
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* NLBL_CIPSOV4_A_MLSLVL attribute */
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NLBL_CIPSOV4_A_MLSCATLOC,
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/* (NLA_U32)
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* the local MLS category */
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NLBL_CIPSOV4_A_MLSCATREM,
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/* (NLA_U32)
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* the remote MLS category */
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NLBL_CIPSOV4_A_MLSCAT,
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/* (NLA_NESTED)
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* a MLS category mapping, must contain only one attribute of each of
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* the following types: NLBL_CIPSOV4_A_MLSCATLOC and
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* NLBL_CIPSOV4_A_MLSCATREM */
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NLBL_CIPSOV4_A_MLSCATLST,
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/* (NLA_NESTED)
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* the CIPSO category mappings, there must be at least one
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* NLBL_CIPSOV4_A_MLSCAT attribute */
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__NLBL_CIPSOV4_A_MAX,
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};
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#define NLBL_CIPSOV4_A_MAX (__NLBL_CIPSOV4_A_MAX - 1)
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/* NetLabel protocol functions */
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int netlbl_cipsov4_genl_init(void);
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/* Free the memory associated with a CIPSOv4 DOI definition */
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void netlbl_cipsov4_doi_free(struct rcu_head *entry);
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#endif
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