projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3323eec9 MZ |
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; | |
| 523979ad MZ |
25 | int rc, result = 0; |
| 26 | char *op = "ima_audit"; | |
| 27 | char *cause; | |
| 3323eec9 MZ |
28 | |
| 29 | rc = strict_strtoul(str, 0, &audit); | |
| 30 | if (rc || audit > 1) | |
| 523979ad | 31 | result = 1; |
| 3323eec9 MZ |
32 | else |
| 33 | ima_audit = audit; | |
| 523979ad MZ |
34 | cause = ima_audit ? "enabled" : "not_enabled"; |
| 35 | integrity_audit_msg(AUDIT_INTEGRITY_STATUS, NULL, NULL, | |
| 36 | op, cause, result, 0); | |
| 3323eec9 MZ |
37 | return 1; |
| 38 | } | |
| 39 | __setup("ima_audit=", ima_audit_setup); | |
| 40 | #endif | |
| 41 | ||
| 42 | void integrity_audit_msg(int audit_msgno, struct inode *inode, | |
| 43 | const unsigned char *fname, const char *op, | |
| 44 | const char *cause, int result, int audit_info) | |
| 45 | { | |
| 46 | struct audit_buffer *ab; | |
| 47 | ||
| 48 | if (!ima_audit && audit_info == 1) /* Skip informational messages */ | |
| 49 | return; | |
| 50 | ||
| 51 | ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno); | |
| 523979ad | 52 | audit_log_format(ab, "integrity: pid=%d uid=%u auid=%u ses=%u", |
| 3323eec9 | 53 | current->pid, current->cred->uid, |
| 523979ad MZ |
54 | audit_get_loginuid(current), |
| 55 | audit_get_sessionid(current)); | |
| 3323eec9 | 56 | audit_log_task_context(ab); |
| e5e520a7 MZ |
57 | audit_log_format(ab, " op="); |
| 58 | audit_log_string(ab, op); | |
| 59 | audit_log_format(ab, " cause="); | |
| 60 | audit_log_string(ab, cause); | |
| 3323eec9 MZ |
61 | audit_log_format(ab, " comm="); |
| 62 | audit_log_untrustedstring(ab, current->comm); | |
| 63 | if (fname) { | |
| 64 | audit_log_format(ab, " name="); | |
| 65 | audit_log_untrustedstring(ab, fname); | |
| 66 | } | |
| 67 | if (inode) | |
| 68 | audit_log_format(ab, " dev=%s ino=%lu", | |
| 69 | inode->i_sb->s_id, inode->i_ino); | |
| 523979ad | 70 | audit_log_format(ab, " res=%d", !result ? 0 : 1); |
| 3323eec9 MZ |
71 | audit_log_end(ab); |
| 72 | } |