1 // SPDX-License-Identifier: GPL-2.0+
3 * Platform keyring for firmware/platform keys
5 * Copyright IBM Corporation, 2018
6 * Author(s): Nayna Jain <nayna@linux.ibm.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/slab.h>
15 #include "../integrity.h"
18 * add_to_platform_keyring - Add to platform keyring without validation.
19 * @source: Source of key
20 * @data: The blob holding the key
21 * @len: The length of the data blob
23 * Add a key to the platform keyring without checking its trust chain. This
24 * is available only during kernel initialisation.
26 void __init add_to_platform_keyring(const char *source, const void *data,
32 perm = (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_VIEW;
34 rc = integrity_load_cert(INTEGRITY_KEYRING_PLATFORM, source, data, len,
37 pr_info("Error adding keys to platform keyring %s\n", source);
41 * Create the trusted keyrings.
43 static __init int platform_keyring_init(void)
47 rc = integrity_init_keyring(INTEGRITY_KEYRING_PLATFORM);
51 pr_notice("Platform Keyring initialized\n");
56 * Must be initialised before we try and load the keys into the keyring.
58 device_initcall(platform_keyring_init);