cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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net.h (3105B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * AppArmor security module
      4 *
      5 * This file contains AppArmor network mediation definitions.
      6 *
      7 * Copyright (C) 1998-2008 Novell/SUSE
      8 * Copyright 2009-2017 Canonical Ltd.
      9 */
     10
     11#ifndef __AA_NET_H
     12#define __AA_NET_H
     13
     14#include <net/sock.h>
     15#include <linux/path.h>
     16
     17#include "apparmorfs.h"
     18#include "label.h"
     19#include "perms.h"
     20#include "policy.h"
     21
     22#define AA_MAY_SEND		AA_MAY_WRITE
     23#define AA_MAY_RECEIVE		AA_MAY_READ
     24
     25#define AA_MAY_SHUTDOWN		AA_MAY_DELETE
     26
     27#define AA_MAY_CONNECT		AA_MAY_OPEN
     28#define AA_MAY_ACCEPT		0x00100000
     29
     30#define AA_MAY_BIND		0x00200000
     31#define AA_MAY_LISTEN		0x00400000
     32
     33#define AA_MAY_SETOPT		0x01000000
     34#define AA_MAY_GETOPT		0x02000000
     35
     36#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |    \
     37			AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN |	  \
     38			AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
     39			AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
     40
     41#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |	\
     42		      AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
     43		      AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD |	\
     44		      AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK |	\
     45		      AA_MAY_MPROT)
     46
     47#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT |	\
     48		       AA_MAY_ACCEPT)
     49struct aa_sk_ctx {
     50	struct aa_label *label;
     51	struct aa_label *peer;
     52};
     53
     54#define SK_CTX(X) ((X)->sk_security)
     55#define SOCK_ctx(X) SOCK_INODE(X)->i_security
     56#define DEFINE_AUDIT_NET(NAME, OP, SK, F, T, P)				  \
     57	struct lsm_network_audit NAME ## _net = { .sk = (SK),		  \
     58						  .family = (F)};	  \
     59	DEFINE_AUDIT_DATA(NAME,						  \
     60			  ((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
     61						     LSM_AUDIT_DATA_NONE, \
     62			  OP);						  \
     63	NAME.u.net = &(NAME ## _net);					  \
     64	aad(&NAME)->net.type = (T);					  \
     65	aad(&NAME)->net.protocol = (P)
     66
     67#define DEFINE_AUDIT_SK(NAME, OP, SK)					\
     68	DEFINE_AUDIT_NET(NAME, OP, SK, (SK)->sk_family, (SK)->sk_type,	\
     69			 (SK)->sk_protocol)
     70
     71
     72#define af_select(FAMILY, FN, DEF_FN)		\
     73({						\
     74	int __e;				\
     75	switch ((FAMILY)) {			\
     76	default:				\
     77		__e = DEF_FN;			\
     78	}					\
     79	__e;					\
     80})
     81
     82struct aa_secmark {
     83	u8 audit;
     84	u8 deny;
     85	u32 secid;
     86	char *label;
     87};
     88
     89extern struct aa_sfs_entry aa_sfs_entry_network[];
     90
     91void audit_net_cb(struct audit_buffer *ab, void *va);
     92int aa_profile_af_perm(struct aa_profile *profile, struct common_audit_data *sa,
     93		       u32 request, u16 family, int type);
     94int aa_af_perm(struct aa_label *label, const char *op, u32 request, u16 family,
     95	       int type, int protocol);
     96static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
     97					struct common_audit_data *sa,
     98					u32 request,
     99					struct sock *sk)
    100{
    101	return aa_profile_af_perm(profile, sa, request, sk->sk_family,
    102				  sk->sk_type);
    103}
    104int aa_sk_perm(const char *op, u32 request, struct sock *sk);
    105
    106int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request,
    107		      struct socket *sock);
    108
    109int apparmor_secmark_check(struct aa_label *label, char *op, u32 request,
    110			   u32 secid, const struct sock *sk);
    111
    112#endif /* __AA_NET_H */