1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2015 Juniper Networks, Inc.
6 * Petko Manolov <petko.manolov@konsulko.com>
9 #include <linux/export.h>
10 #include <linux/kernel.h>
11 #include <linux/sched.h>
12 #include <linux/cred.h>
13 #include <linux/err.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <keys/system_keyring.h>
19 struct key *ima_blacklist_keyring;
22 * Allocate the IMA blacklist keyring
24 __init int ima_mok_init(void)
26 struct key_restriction *restriction;
28 pr_notice("Allocating IMA blacklist keyring.\n");
30 restriction = kzalloc(sizeof(struct key_restriction), GFP_KERNEL);
32 panic("Can't allocate IMA blacklist restriction.");
34 restriction->check = restrict_link_by_builtin_trusted;
36 ima_blacklist_keyring = keyring_alloc(".ima_blacklist",
37 KUIDT_INIT(0), KGIDT_INIT(0), current_cred(),
38 (KEY_POS_ALL & ~KEY_POS_SETATTR) |
39 KEY_USR_VIEW | KEY_USR_READ |
40 KEY_USR_WRITE | KEY_USR_SEARCH,
41 KEY_ALLOC_NOT_IN_QUOTA |
45 if (IS_ERR(ima_blacklist_keyring))
46 panic("Can't allocate IMA blacklist keyring.");
49 device_initcall(ima_mok_init);