xref: /linux/security/landlock/setup.c (revision c02ce1735b150cf7c3b43790b48e23dcd17c0d46)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Landlock LSM - Security framework setup
4  *
5  * Copyright © 2016-2020 Mickaël Salaün <mic@digikod.net>
6  * Copyright © 2018-2020 ANSSI
7  */
8 
9 #include <linux/init.h>
10 #include <linux/lsm_hooks.h>
11 #include <uapi/linux/lsm.h>
12 
13 #include "common.h"
14 #include "cred.h"
15 #include "fs.h"
16 #include "net.h"
17 #include "setup.h"
18 #include "task.h"
19 
20 bool landlock_initialized __ro_after_init = false;
21 
22 struct lsm_blob_sizes landlock_blob_sizes __ro_after_init = {
23 	.lbs_cred = sizeof(struct landlock_cred_security),
24 	.lbs_file = sizeof(struct landlock_file_security),
25 	.lbs_inode = sizeof(struct landlock_inode_security),
26 	.lbs_superblock = sizeof(struct landlock_superblock_security),
27 };
28 
29 const struct lsm_id landlock_lsmid = {
30 	.name = LANDLOCK_NAME,
31 	.id = LSM_ID_LANDLOCK,
32 };
33 
34 static int __init landlock_init(void)
35 {
36 	landlock_add_cred_hooks();
37 	landlock_add_task_hooks();
38 	landlock_add_fs_hooks();
39 	landlock_add_net_hooks();
40 	landlock_initialized = true;
41 	pr_info("Up and running.\n");
42 	return 0;
43 }
44 
45 DEFINE_LSM(LANDLOCK_NAME) = {
46 	.name = LANDLOCK_NAME,
47 	.init = landlock_init,
48 	.blobs = &landlock_blob_sizes,
49 };
50