net/netlabel/netlabel_calipso.h

Source file repositories/reference/linux-study-clean/net/netlabel/netlabel_calipso.h

File Facts

System
Linux kernel
Corpus path
net/netlabel/netlabel_calipso.h
Extension
.h
Size
3954 bytes
Lines
138
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

#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

Annotation

Implementation Notes