Linux kernel mirror (for testing)
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1/*
2 * AppArmor security module
3 *
4 * This file contains AppArmor network mediation definitions.
5 *
6 * Copyright (C) 1998-2008 Novell/SUSE
7 * Copyright 2009-2017 Canonical Ltd.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation, version 2 of the
12 * License.
13 */
14
15#ifndef __AA_NET_H
16#define __AA_NET_H
17
18#include <net/sock.h>
19#include <linux/path.h>
20
21#include "apparmorfs.h"
22#include "label.h"
23#include "perms.h"
24#include "policy.h"
25
26#define AA_MAY_SEND AA_MAY_WRITE
27#define AA_MAY_RECEIVE AA_MAY_READ
28
29#define AA_MAY_SHUTDOWN AA_MAY_DELETE
30
31#define AA_MAY_CONNECT AA_MAY_OPEN
32#define AA_MAY_ACCEPT 0x00100000
33
34#define AA_MAY_BIND 0x00200000
35#define AA_MAY_LISTEN 0x00400000
36
37#define AA_MAY_SETOPT 0x01000000
38#define AA_MAY_GETOPT 0x02000000
39
40#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE | \
41 AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN | \
42 AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
43 AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
44
45#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE | \
46 AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
47 AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD | \
48 AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK | \
49 AA_MAY_MPROT)
50
51#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT | \
52 AA_MAY_ACCEPT)
53struct aa_sk_ctx {
54 struct aa_label *label;
55 struct aa_label *peer;
56};
57
58#define SK_CTX(X) ((X)->sk_security)
59#define SOCK_ctx(X) SOCK_INODE(X)->i_security
60#define DEFINE_AUDIT_NET(NAME, OP, SK, F, T, P) \
61 struct lsm_network_audit NAME ## _net = { .sk = (SK), \
62 .family = (F)}; \
63 DEFINE_AUDIT_DATA(NAME, \
64 ((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
65 LSM_AUDIT_DATA_NONE, \
66 OP); \
67 NAME.u.net = &(NAME ## _net); \
68 aad(&NAME)->net.type = (T); \
69 aad(&NAME)->net.protocol = (P)
70
71#define DEFINE_AUDIT_SK(NAME, OP, SK) \
72 DEFINE_AUDIT_NET(NAME, OP, SK, (SK)->sk_family, (SK)->sk_type, \
73 (SK)->sk_protocol)
74
75
76#define af_select(FAMILY, FN, DEF_FN) \
77({ \
78 int __e; \
79 switch ((FAMILY)) { \
80 default: \
81 __e = DEF_FN; \
82 } \
83 __e; \
84})
85
86struct aa_secmark {
87 u8 audit;
88 u8 deny;
89 u32 secid;
90 char *label;
91};
92
93extern struct aa_sfs_entry aa_sfs_entry_network[];
94
95void audit_net_cb(struct audit_buffer *ab, void *va);
96int aa_profile_af_perm(struct aa_profile *profile, struct common_audit_data *sa,
97 u32 request, u16 family, int type);
98int aa_af_perm(struct aa_label *label, const char *op, u32 request, u16 family,
99 int type, int protocol);
100static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
101 struct common_audit_data *sa,
102 u32 request,
103 struct sock *sk)
104{
105 return aa_profile_af_perm(profile, sa, request, sk->sk_family,
106 sk->sk_type);
107}
108int aa_sk_perm(const char *op, u32 request, struct sock *sk);
109
110int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request,
111 struct socket *sock);
112
113int apparmor_secmark_check(struct aa_label *label, char *op, u32 request,
114 u32 secid, struct sock *sk);
115
116#endif /* __AA_NET_H */