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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
49#define OP_NULL NULL
50
51#define OP_SYSCTL "sysctl"
52#define OP_CAPABLE "capable"
53
54#define OP_UNLINK "unlink"
55#define OP_MKDIR "mkdir"
56#define OP_RMDIR "rmdir"
57#define OP_MKNOD "mknod"
58#define OP_TRUNC "truncate"
59#define OP_LINK "link"
60#define OP_SYMLINK "symlink"
61#define OP_RENAME_SRC "rename_src"
62#define OP_RENAME_DEST "rename_dest"
63#define OP_CHMOD "chmod"
64#define OP_CHOWN "chown"
65#define OP_GETATTR "getattr"
66#define OP_OPEN "open"
67
68#define OP_FPERM "file_perm"
69#define OP_FLOCK "file_lock"
70#define OP_FMMAP "file_mmap"
71#define OP_FMPROT "file_mprotect"
72
73#define OP_CREATE "create"
74#define OP_POST_CREATE "post_create"
75#define OP_BIND "bind"
76#define OP_CONNECT "connect"
77#define OP_LISTEN "listen"
78#define OP_ACCEPT "accept"
79#define OP_SENDMSG "sendmsg"
80#define OP_RECVMSG "recvmsg"
81#define OP_GETSOCKNAME "getsockname"
82#define OP_GETPEERNAME "getpeername"
83#define OP_GETSOCKOPT "getsockopt"
84#define OP_SETSOCKOPT "setsockopt"
85#define OP_SHUTDOWN "socket_shutdown"
86
87#define OP_PTRACE "ptrace"
88
89#define OP_EXEC "exec"
90
91#define OP_CHANGE_HAT "change_hat"
92#define OP_CHANGE_PROFILE "change_profile"
93#define OP_CHANGE_ONEXEC "change_onexec"
94
95#define OP_SETPROCATTR "setprocattr"
96#define OP_SETRLIMIT "setrlimit"
97
98#define OP_PROF_REPL "profile_replace"
99#define OP_PROF_LOAD "profile_load"
100#define OP_PROF_RM "profile_remove"
101
102
103struct apparmor_audit_data {
104 int error;
105 const char *op;
106 int type;
107 void *profile;
108 const char *name;
109 const char *info;
110 union {
111 /* these entries require a custom callback fn */
112 struct {
113 struct aa_profile *peer;
114 struct {
115 const char *target;
116 u32 request;
117 u32 denied;
118 kuid_t ouid;
119 } fs;
120 };
121 struct {
122 const char *name;
123 long pos;
124 const char *ns;
125 } iface;
126 struct {
127 int rlim;
128 unsigned long max;
129 } rlim;
130 };
131};
132
133/* macros for dealing with apparmor_audit_data structure */
134#define aad(SA) ((SA)->apparmor_audit_data)
135#define DEFINE_AUDIT_DATA(NAME, T, X) \
136 /* TODO: cleanup audit init so we don't need _aad = {0,} */ \
137 struct apparmor_audit_data NAME ## _aad = { .op = (X), }; \
138 struct common_audit_data NAME = \
139 { \
140 .type = (T), \
141 .u.tsk = NULL, \
142 }; \
143 NAME.apparmor_audit_data = &(NAME ## _aad)
144
145void aa_audit_msg(int type, struct common_audit_data *sa,
146 void (*cb) (struct audit_buffer *, void *));
147int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
148 void (*cb) (struct audit_buffer *, void *));
149
150#define aa_audit_error(ERROR, SA, CB) \
151({ \
152 aad((SA))->error = (ERROR); \
153 aa_audit_msg(AUDIT_APPARMOR_ERROR, (SA), (CB)); \
154 aad((SA))->error; \
155})
156
157
158static inline int complain_error(int error)
159{
160 if (error == -EPERM || error == -EACCES)
161 return 0;
162 return error;
163}
164
165#endif /* __AA_AUDIT_H */