/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* NetLabel CALIPSO Support
*
* This file defines the CALIPSO functions for the NetLabel system. The
* NetLabel system manages static and dynamic label mappings for network
* protocols such as CIPSO and RIPSO.
*
* Authors: Paul Moore <paul@paul-moore.com>
* Huw Davies <huw@codeweavers.com>
*/
/* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
* (c) Copyright Huw Davies <huw@codeweavers.com>, 2015
*/
#ifndef _NETLABEL_CALIPSO
#define _NETLABEL_CALIPSO
#include <net/netlabel.h>
#include <net/calipso.h>
/* The following NetLabel payloads are supported by the CALIPSO subsystem.
*
* o ADD:
* Sent by an application to add a new DOI mapping table.
*
* Required attributes:
*
* NLBL_CALIPSO_A_DOI
* NLBL_CALIPSO_A_MTYPE
*
* If using CALIPSO_MAP_PASS no additional attributes are required.
*
* o REMOVE:
* Sent by an application to remove a specific DOI mapping table from the
* CALIPSO system.
*
* Required attributes:
*
* NLBL_CALIPSO_A_DOI
*
* o LIST:
* Sent by an application to list the details of a DOI definition. On
* success the kernel should send a response using the following format.
*
* Required attributes:
*
* NLBL_CALIPSO_A_DOI
*
* The valid response message format depends on the type of the DOI mapping,
* the defined formats are shown below.
*
* Required attributes:
*
* NLBL_CALIPSO_A_MTYPE
*
* If using CALIPSO_MAP_PASS no additional attributes are required.
*
* o LISTALL:
* This message is sent by an application to list the valid DOIs on the
* system. 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_CALIPSO_A_DOI
* NLBL_CALIPSO_A_MTYPE
*
*/
/* NetLabel CALIPSO commands */
enum {
NLBL_CALIPSO_C_UNSPEC,
NLBL_CALIPSO_C_ADD,
NLBL_CALIPSO_C_REMOVE,
NLBL_CALIPSO_C_LIST,
NLBL_CALIPSO_C_LISTALL,
__NLBL_CALIPSO_C_MAX,
};
/* NetLabel CALIPSO attributes */
enum {
NLBL_CALIPSO_A_UNSPEC,
NLBL_CALIPSO_A_DOI,
/* (NLA_U32)
* the DOI value */
NLBL_CALIPSO_A_MTYPE,
/* (NLA_U32)
* the mapping table type (defined in the calipso.h header as
* CALIPSO_MAP_*) */
__NLBL_CALIPSO_A_MAX,
};
#define NLBL_CALIPSO_A_MAX (__NLBL_CALIPSO_A_MAX - 1)
/* NetLabel protocol functions */
#if IS_ENABLED(CONFIG_IPV6)
int netlbl_calipso_genl_init(void);
#else
static inline int netlbl_calipso_genl_init(void)
{
return 0;
}
#endif
int calipso_doi_add(struct calipso_doi *doi_def,
struct netlbl_audit *audit_info);
void calipso_doi_free(struct calipso_doi *doi_def);
int calipso_doi_remove(u32 doi, struct netlbl_audit *audit_info);
struct calipso_doi *calipso_doi_getdef(u32 doi);
void calipso_doi_putdef(struct calipso_doi *doi_def);
int calipso_doi_walk(u32 *skip_cnt,
int (*callback)(struct calipso_doi *doi_def, void *arg),
void *cb_arg);
int calipso_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr);
int calipso_sock_setattr(struct sock *sk,
const struct calipso_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
void calipso_sock_delattr(struct sock *sk);
int calipso_req_setattr(struct request_sock *req,
const struct calipso_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
void calipso_req_delattr(struct request_sock *req);
unsigned char *calipso_optptr(const struct sk_buff *skb);
int calipso_getattr(const unsigned char *calipso,
struct netlbl_lsm_secattr *secattr);
int calipso_skbuff_setattr(struct sk_buff *skb,
const struct calipso_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
int calipso_skbuff_delattr(struct sk_buff *skb);
void calipso_cache_invalidate(void);
int calipso_cache_add(const unsigned char *calipso_ptr,
const struct netlbl_lsm_secattr *secattr);
#endif
