mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 05:53:34 +07:00
4fee5242bf
This works in exactly the same way as the CIPSO label cache. The idea is to allow the lsm to cache the result of a secattr lookup so that it doesn't need to perform the lookup for every skbuff. It introduces two sysctl controls: calipso_cache_enable - enables/disables the cache. calipso_cache_bucket_size - sets the size of a cache bucket. Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
152 lines
4.5 KiB
C
152 lines
4.5 KiB
C
/*
|
|
* 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
|
|
*
|
|
* 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_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
|