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1/*
2 * AppArmor security module
3 *
4 * This file contains AppArmor auditing function definitions.
5 *
6 * Copyright (C) 1998-2008 Novell/SUSE
7 * Copyright 2009-2010 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_AUDIT_H
16#define __AA_AUDIT_H
17
18#include <linux/audit.h>
19#include <linux/fs.h>
20#include <linux/lsm_audit.h>
21#include <linux/sched.h>
22#include <linux/slab.h>
23
24#include "file.h"
25
26struct aa_profile;
27
28extern const char *const audit_mode_names[];
29#define AUDIT_MAX_INDEX 5
30enum audit_mode {
31 AUDIT_NORMAL, /* follow normal auditing of accesses */
32 AUDIT_QUIET_DENIED, /* quiet all denied access messages */
33 AUDIT_QUIET, /* quiet all messages */
34 AUDIT_NOQUIET, /* do not quiet audit messages */
35 AUDIT_ALL /* audit all accesses */
36};
37
38enum audit_type {
39 AUDIT_APPARMOR_AUDIT,
40 AUDIT_APPARMOR_ALLOWED,
41 AUDIT_APPARMOR_DENIED,
42 AUDIT_APPARMOR_HINT,
43 AUDIT_APPARMOR_STATUS,
44 AUDIT_APPARMOR_ERROR,
45 AUDIT_APPARMOR_KILL,
46 AUDIT_APPARMOR_AUTO
47};
48
49extern const char *const op_table[];
50enum aa_ops {
51 OP_NULL,
52
53 OP_SYSCTL,
54 OP_CAPABLE,
55
56 OP_UNLINK,
57 OP_MKDIR,
58 OP_RMDIR,
59 OP_MKNOD,
60 OP_TRUNC,
61 OP_LINK,
62 OP_SYMLINK,
63 OP_RENAME_SRC,
64 OP_RENAME_DEST,
65 OP_CHMOD,
66 OP_CHOWN,
67 OP_GETATTR,
68 OP_OPEN,
69
70 OP_FPERM,
71 OP_FLOCK,
72 OP_FMMAP,
73 OP_FMPROT,
74
75 OP_CREATE,
76 OP_POST_CREATE,
77 OP_BIND,
78 OP_CONNECT,
79 OP_LISTEN,
80 OP_ACCEPT,
81 OP_SENDMSG,
82 OP_RECVMSG,
83 OP_GETSOCKNAME,
84 OP_GETPEERNAME,
85 OP_GETSOCKOPT,
86 OP_SETSOCKOPT,
87 OP_SOCK_SHUTDOWN,
88
89 OP_PTRACE,
90
91 OP_EXEC,
92 OP_CHANGE_HAT,
93 OP_CHANGE_PROFILE,
94 OP_CHANGE_ONEXEC,
95
96 OP_SETPROCATTR,
97 OP_SETRLIMIT,
98
99 OP_PROF_REPL,
100 OP_PROF_LOAD,
101 OP_PROF_RM,
102};
103
104
105struct apparmor_audit_data {
106 int error;
107 int op;
108 int type;
109 void *profile;
110 const char *name;
111 const char *info;
112 union {
113 void *target;
114 struct {
115 long pos;
116 void *target;
117 } iface;
118 struct {
119 int rlim;
120 unsigned long max;
121 } rlim;
122 struct {
123 const char *target;
124 u32 request;
125 u32 denied;
126 kuid_t ouid;
127 } fs;
128 };
129};
130
131/* define a short hand for apparmor_audit_data structure */
132#define aad apparmor_audit_data
133
134void aa_audit_msg(int type, struct common_audit_data *sa,
135 void (*cb) (struct audit_buffer *, void *));
136int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
137 struct common_audit_data *sa,
138 void (*cb) (struct audit_buffer *, void *));
139
140static inline int complain_error(int error)
141{
142 if (error == -EPERM || error == -EACCES)
143 return 0;
144 return error;
145}
146
147#endif /* __AA_AUDIT_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * AppArmor security module
4 *
5 * This file contains AppArmor auditing function definitions.
6 *
7 * Copyright (C) 1998-2008 Novell/SUSE
8 * Copyright 2009-2010 Canonical Ltd.
9 */
10
11#ifndef __AA_AUDIT_H
12#define __AA_AUDIT_H
13
14#include <linux/audit.h>
15#include <linux/fs.h>
16#include <linux/lsm_audit.h>
17#include <linux/sched.h>
18#include <linux/slab.h>
19
20#include "file.h"
21#include "label.h"
22
23extern const char *const audit_mode_names[];
24#define AUDIT_MAX_INDEX 5
25enum audit_mode {
26 AUDIT_NORMAL, /* follow normal auditing of accesses */
27 AUDIT_QUIET_DENIED, /* quiet all denied access messages */
28 AUDIT_QUIET, /* quiet all messages */
29 AUDIT_NOQUIET, /* do not quiet audit messages */
30 AUDIT_ALL /* audit all accesses */
31};
32
33enum audit_type {
34 AUDIT_APPARMOR_AUDIT,
35 AUDIT_APPARMOR_ALLOWED,
36 AUDIT_APPARMOR_DENIED,
37 AUDIT_APPARMOR_HINT,
38 AUDIT_APPARMOR_STATUS,
39 AUDIT_APPARMOR_ERROR,
40 AUDIT_APPARMOR_KILL,
41 AUDIT_APPARMOR_AUTO
42};
43
44#define OP_NULL NULL
45
46#define OP_SYSCTL "sysctl"
47#define OP_CAPABLE "capable"
48
49#define OP_UNLINK "unlink"
50#define OP_MKDIR "mkdir"
51#define OP_RMDIR "rmdir"
52#define OP_MKNOD "mknod"
53#define OP_TRUNC "truncate"
54#define OP_LINK "link"
55#define OP_SYMLINK "symlink"
56#define OP_RENAME_SRC "rename_src"
57#define OP_RENAME_DEST "rename_dest"
58#define OP_CHMOD "chmod"
59#define OP_CHOWN "chown"
60#define OP_GETATTR "getattr"
61#define OP_OPEN "open"
62
63#define OP_FRECEIVE "file_receive"
64#define OP_FPERM "file_perm"
65#define OP_FLOCK "file_lock"
66#define OP_FMMAP "file_mmap"
67#define OP_FMPROT "file_mprotect"
68#define OP_INHERIT "file_inherit"
69
70#define OP_PIVOTROOT "pivotroot"
71#define OP_MOUNT "mount"
72#define OP_UMOUNT "umount"
73
74#define OP_CREATE "create"
75#define OP_POST_CREATE "post_create"
76#define OP_BIND "bind"
77#define OP_CONNECT "connect"
78#define OP_LISTEN "listen"
79#define OP_ACCEPT "accept"
80#define OP_SENDMSG "sendmsg"
81#define OP_RECVMSG "recvmsg"
82#define OP_GETSOCKNAME "getsockname"
83#define OP_GETPEERNAME "getpeername"
84#define OP_GETSOCKOPT "getsockopt"
85#define OP_SETSOCKOPT "setsockopt"
86#define OP_SHUTDOWN "socket_shutdown"
87
88#define OP_PTRACE "ptrace"
89#define OP_SIGNAL "signal"
90
91#define OP_EXEC "exec"
92
93#define OP_CHANGE_HAT "change_hat"
94#define OP_CHANGE_PROFILE "change_profile"
95#define OP_CHANGE_ONEXEC "change_onexec"
96#define OP_STACK "stack"
97#define OP_STACK_ONEXEC "stack_onexec"
98
99#define OP_SETPROCATTR "setprocattr"
100#define OP_SETRLIMIT "setrlimit"
101
102#define OP_PROF_REPL "profile_replace"
103#define OP_PROF_LOAD "profile_load"
104#define OP_PROF_RM "profile_remove"
105
106
107struct apparmor_audit_data {
108 int error;
109 int type;
110 const char *op;
111 struct aa_label *label;
112 const char *name;
113 const char *info;
114 u32 request;
115 u32 denied;
116 union {
117 /* these entries require a custom callback fn */
118 struct {
119 struct aa_label *peer;
120 union {
121 struct {
122 const char *target;
123 kuid_t ouid;
124 } fs;
125 struct {
126 int rlim;
127 unsigned long max;
128 } rlim;
129 struct {
130 int signal;
131 int unmappedsig;
132 };
133 struct {
134 int type, protocol;
135 struct sock *peer_sk;
136 void *addr;
137 int addrlen;
138 } net;
139 };
140 };
141 struct {
142 struct aa_profile *profile;
143 const char *ns;
144 long pos;
145 } iface;
146 struct {
147 const char *src_name;
148 const char *type;
149 const char *trans;
150 const char *data;
151 unsigned long flags;
152 } mnt;
153 };
154};
155
156/* macros for dealing with apparmor_audit_data structure */
157#define aad(SA) ((SA)->apparmor_audit_data)
158#define DEFINE_AUDIT_DATA(NAME, T, X) \
159 /* TODO: cleanup audit init so we don't need _aad = {0,} */ \
160 struct apparmor_audit_data NAME ## _aad = { .op = (X), }; \
161 struct common_audit_data NAME = \
162 { \
163 .type = (T), \
164 .u.tsk = NULL, \
165 }; \
166 NAME.apparmor_audit_data = &(NAME ## _aad)
167
168void aa_audit_msg(int type, struct common_audit_data *sa,
169 void (*cb) (struct audit_buffer *, void *));
170int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
171 void (*cb) (struct audit_buffer *, void *));
172
173#define aa_audit_error(ERROR, SA, CB) \
174({ \
175 aad((SA))->error = (ERROR); \
176 aa_audit_msg(AUDIT_APPARMOR_ERROR, (SA), (CB)); \
177 aad((SA))->error; \
178})
179
180
181static inline int complain_error(int error)
182{
183 if (error == -EPERM || error == -EACCES)
184 return 0;
185 return error;
186}
187
188void aa_audit_rule_free(void *vrule);
189int aa_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule);
190int aa_audit_rule_known(struct audit_krule *rule);
191int aa_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule);
192
193#endif /* __AA_AUDIT_H */