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b886d83c | 1 | // SPDX-License-Identifier: GPL-2.0-only |
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2 | /* |
3 | * Copyright (C) 2008 IBM Corporation | |
4 | * Author: Mimi Zohar <zohar@us.ibm.com> | |
5 | * | |
3323eec9 | 6 | * File: integrity_audit.c |
2bb930ab | 7 | * Audit calls for the integrity subsystem |
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8 | */ |
9 | ||
10 | #include <linux/fs.h> | |
5a0e3ad6 | 11 | #include <linux/gfp.h> |
3323eec9 | 12 | #include <linux/audit.h> |
d726d8d7 | 13 | #include "integrity.h" |
3323eec9 | 14 | |
d726d8d7 | 15 | static int integrity_audit_info; |
3323eec9 | 16 | |
3323eec9 | 17 | /* ima_audit_setup - enable informational auditing messages */ |
d726d8d7 | 18 | static int __init integrity_audit_setup(char *str) |
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19 | { |
20 | unsigned long audit; | |
3323eec9 | 21 | |
29707b20 | 22 | if (!kstrtoul(str, 0, &audit)) |
d726d8d7 | 23 | integrity_audit_info = audit ? 1 : 0; |
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24 | return 1; |
25 | } | |
d726d8d7 | 26 | __setup("integrity_audit=", integrity_audit_setup); |
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27 | |
28 | void integrity_audit_msg(int audit_msgno, struct inode *inode, | |
29 | const unsigned char *fname, const char *op, | |
30 | const char *cause, int result, int audit_info) | |
31 | { | |
32 | struct audit_buffer *ab; | |
73a6b44a | 33 | char name[TASK_COMM_LEN]; |
3323eec9 | 34 | |
d726d8d7 | 35 | if (!integrity_audit_info && audit_info == 1) /* Skip info messages */ |
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36 | return; |
37 | ||
cdfb6b34 | 38 | ab = audit_log_start(audit_context(), GFP_KERNEL, audit_msgno); |
34c111f6 | 39 | audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u", |
f1dc4867 | 40 | task_pid_nr(current), |
8b94eea4 EB |
41 | from_kuid(&init_user_ns, current_cred()->uid), |
42 | from_kuid(&init_user_ns, audit_get_loginuid(current)), | |
523979ad | 43 | audit_get_sessionid(current)); |
3323eec9 | 44 | audit_log_task_context(ab); |
3d2859d5 | 45 | audit_log_format(ab, " op=%s cause=%s comm=", op, cause); |
73a6b44a | 46 | audit_log_untrustedstring(ab, get_task_comm(name, current)); |
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47 | if (fname) { |
48 | audit_log_format(ab, " name="); | |
49 | audit_log_untrustedstring(ab, fname); | |
50 | } | |
41fdc305 KC |
51 | if (inode) { |
52 | audit_log_format(ab, " dev="); | |
53 | audit_log_untrustedstring(ab, inode->i_sb->s_id); | |
54 | audit_log_format(ab, " ino=%lu", inode->i_ino); | |
55 | } | |
b0d5de4d | 56 | audit_log_format(ab, " res=%d", !result); |
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57 | audit_log_end(ab); |
58 | } |