4c306a9291
These macros never be used, so remove them. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
246 lines
7 KiB
C
246 lines
7 KiB
C
/*
|
|
* NetLabel Unlabeled Support
|
|
*
|
|
* This file defines functions for dealing with unlabeled packets 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.moore@hp.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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#ifndef _NETLABEL_UNLABELED_H
|
|
#define _NETLABEL_UNLABELED_H
|
|
|
|
#include <net/netlabel.h>
|
|
|
|
/*
|
|
* The following NetLabel payloads are supported by the Unlabeled subsystem.
|
|
*
|
|
* o STATICADD
|
|
* This message is sent from an application to add a new static label for
|
|
* incoming unlabeled connections.
|
|
*
|
|
* Required attributes:
|
|
*
|
|
* NLBL_UNLABEL_A_IFACE
|
|
* NLBL_UNLABEL_A_SECCTX
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o STATICREMOVE
|
|
* This message is sent from an application to remove an existing static
|
|
* label for incoming unlabeled connections.
|
|
*
|
|
* Required attributes:
|
|
*
|
|
* NLBL_UNLABEL_A_IFACE
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o STATICLIST
|
|
* This message can be sent either from an application or by the kernel in
|
|
* response to an application generated STATICLIST message. When sent by an
|
|
* application there is no payload and the NLM_F_DUMP flag should be set.
|
|
* The kernel should response with a series of the following messages.
|
|
*
|
|
* Required attributes:
|
|
*
|
|
* NLBL_UNLABEL_A_IFACE
|
|
* NLBL_UNLABEL_A_SECCTX
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o STATICADDDEF
|
|
* This message is sent from an application to set the default static
|
|
* label for incoming unlabeled connections.
|
|
*
|
|
* Required attribute:
|
|
*
|
|
* NLBL_UNLABEL_A_SECCTX
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o STATICREMOVEDEF
|
|
* This message is sent from an application to remove the existing default
|
|
* static label for incoming unlabeled connections.
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o STATICLISTDEF
|
|
* This message can be sent either from an application or by the kernel in
|
|
* response to an application generated STATICLISTDEF message. When sent by
|
|
* an application there is no payload and the NLM_F_DUMP flag should be set.
|
|
* The kernel should response with the following message.
|
|
*
|
|
* Required attribute:
|
|
*
|
|
* NLBL_UNLABEL_A_SECCTX
|
|
*
|
|
* If IPv4 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV4ADDR
|
|
* NLBL_UNLABEL_A_IPV4MASK
|
|
*
|
|
* If IPv6 is specified the following attributes are required:
|
|
*
|
|
* NLBL_UNLABEL_A_IPV6ADDR
|
|
* NLBL_UNLABEL_A_IPV6MASK
|
|
*
|
|
* o ACCEPT
|
|
* This message is sent from an application to specify if the kernel should
|
|
* allow unlabled packets to pass if they do not match any of the static
|
|
* mappings defined in the unlabeled module.
|
|
*
|
|
* Required attributes:
|
|
*
|
|
* NLBL_UNLABEL_A_ACPTFLG
|
|
*
|
|
* o LIST
|
|
* This message can be sent either from an application or by the kernel in
|
|
* response to an application generated LIST message. When sent by an
|
|
* application there is no payload. The kernel should respond to a LIST
|
|
* message with a LIST message on success.
|
|
*
|
|
* Required attributes:
|
|
*
|
|
* NLBL_UNLABEL_A_ACPTFLG
|
|
*
|
|
*/
|
|
|
|
/* NetLabel Unlabeled commands */
|
|
enum {
|
|
NLBL_UNLABEL_C_UNSPEC,
|
|
NLBL_UNLABEL_C_ACCEPT,
|
|
NLBL_UNLABEL_C_LIST,
|
|
NLBL_UNLABEL_C_STATICADD,
|
|
NLBL_UNLABEL_C_STATICREMOVE,
|
|
NLBL_UNLABEL_C_STATICLIST,
|
|
NLBL_UNLABEL_C_STATICADDDEF,
|
|
NLBL_UNLABEL_C_STATICREMOVEDEF,
|
|
NLBL_UNLABEL_C_STATICLISTDEF,
|
|
__NLBL_UNLABEL_C_MAX,
|
|
};
|
|
|
|
/* NetLabel Unlabeled attributes */
|
|
enum {
|
|
NLBL_UNLABEL_A_UNSPEC,
|
|
NLBL_UNLABEL_A_ACPTFLG,
|
|
/* (NLA_U8)
|
|
* if true then unlabeled packets are allowed to pass, else unlabeled
|
|
* packets are rejected */
|
|
NLBL_UNLABEL_A_IPV6ADDR,
|
|
/* (NLA_BINARY, struct in6_addr)
|
|
* an IPv6 address */
|
|
NLBL_UNLABEL_A_IPV6MASK,
|
|
/* (NLA_BINARY, struct in6_addr)
|
|
* an IPv6 address mask */
|
|
NLBL_UNLABEL_A_IPV4ADDR,
|
|
/* (NLA_BINARY, struct in_addr)
|
|
* an IPv4 address */
|
|
NLBL_UNLABEL_A_IPV4MASK,
|
|
/* (NLA_BINARY, struct in_addr)
|
|
* and IPv4 address mask */
|
|
NLBL_UNLABEL_A_IFACE,
|
|
/* (NLA_NULL_STRING)
|
|
* network interface */
|
|
NLBL_UNLABEL_A_SECCTX,
|
|
/* (NLA_BINARY)
|
|
* a LSM specific security context */
|
|
__NLBL_UNLABEL_A_MAX,
|
|
};
|
|
#define NLBL_UNLABEL_A_MAX (__NLBL_UNLABEL_A_MAX - 1)
|
|
|
|
/* NetLabel protocol functions */
|
|
int netlbl_unlabel_genl_init(void);
|
|
|
|
/* Unlabeled connection hash table size */
|
|
/* XXX - currently this number is an uneducated guess */
|
|
#define NETLBL_UNLHSH_BITSIZE 7
|
|
|
|
/* General Unlabeled init function */
|
|
int netlbl_unlabel_init(u32 size);
|
|
|
|
/* Static/Fallback label management functions */
|
|
int netlbl_unlhsh_add(struct net *net,
|
|
const char *dev_name,
|
|
const void *addr,
|
|
const void *mask,
|
|
u32 addr_len,
|
|
u32 secid,
|
|
struct netlbl_audit *audit_info);
|
|
int netlbl_unlhsh_remove(struct net *net,
|
|
const char *dev_name,
|
|
const void *addr,
|
|
const void *mask,
|
|
u32 addr_len,
|
|
struct netlbl_audit *audit_info);
|
|
|
|
/* Process Unlabeled incoming network packets */
|
|
int netlbl_unlabel_getattr(const struct sk_buff *skb,
|
|
u16 family,
|
|
struct netlbl_lsm_secattr *secattr);
|
|
|
|
/* Set the default configuration to allow Unlabeled packets */
|
|
int netlbl_unlabel_defconf(void);
|
|
|
|
#endif
|