]> nv-tegra.nvidia Code Review - linux-3.10.git/blob - security/integrity/ima/ima_audit.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[linux-3.10.git] / security / integrity / ima / ima_audit.c
1 /*
2  * Copyright (C) 2008 IBM Corporation
3  * Author: Mimi Zohar <zohar@us.ibm.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, version 2 of the License.
8  *
9  * File: integrity_audit.c
10  *      Audit calls for the integrity subsystem
11  */
12
13 #include <linux/fs.h>
14 #include <linux/audit.h>
15 #include "ima.h"
16
17 static int ima_audit;
18
19 #ifdef CONFIG_IMA_AUDIT
20
21 /* ima_audit_setup - enable informational auditing messages */
22 static int __init ima_audit_setup(char *str)
23 {
24         unsigned long audit;
25
26         if (!strict_strtoul(str, 0, &audit))
27                 ima_audit = audit ? 1 : 0;
28         return 1;
29 }
30 __setup("ima_audit=", ima_audit_setup);
31 #endif
32
33 void integrity_audit_msg(int audit_msgno, struct inode *inode,
34                          const unsigned char *fname, const char *op,
35                          const char *cause, int result, int audit_info)
36 {
37         struct audit_buffer *ab;
38
39         if (!ima_audit && audit_info == 1) /* Skip informational messages */
40                 return;
41
42         ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno);
43         audit_log_format(ab, "integrity: pid=%d uid=%u auid=%u ses=%u",
44                          current->pid, current_cred()->uid,
45                          audit_get_loginuid(current),
46                          audit_get_sessionid(current));
47         audit_log_task_context(ab);
48         audit_log_format(ab, " op=");
49         audit_log_string(ab, op);
50         audit_log_format(ab, " cause=");
51         audit_log_string(ab, cause);
52         audit_log_format(ab, " comm=");
53         audit_log_untrustedstring(ab, current->comm);
54         if (fname) {
55                 audit_log_format(ab, " name=");
56                 audit_log_untrustedstring(ab, fname);
57         }
58         if (inode)
59                 audit_log_format(ab, " dev=%s ino=%lu",
60                                  inode->i_sb->s_id, inode->i_ino);
61         audit_log_format(ab, " res=%d", !result ? 0 : 1);
62         audit_log_end(ab);
63 }