LXR linux/security/integrity/platform_certs/load_ipl

   1// SPDX-License-Identifier: GPL-2.0
   2
   3#include <linux/kernel.h>
   4#include <linux/sched.h>
   5#include <linux/cred.h>
   6#include <linux/err.h>
   7#include <linux/efi.h>
   8#include <linux/slab.h>
   9#include <keys/asymmetric-type.h>
  10#include <keys/system_keyring.h>
  11#include <asm/boot_data.h>
  12#include "../integrity.h"
  13
  14/*
  15 * Load the certs contained in the IPL report created by the machine loader
  16 * into the platform trusted keyring.
  17 */
  18static int __init load_ipl_certs(void)
  19{
  20        void *ptr, *end;
  21        unsigned int len;
  22
  23        if (!ipl_cert_list_addr)
  24                return 0;
  25        /* Copy the certificates to the system keyring */
  26        ptr = (void *) ipl_cert_list_addr;
  27        end = ptr + ipl_cert_list_size;
  28        while ((void *) ptr < end) {
  29                len = *(unsigned int *) ptr;
  30                ptr += sizeof(unsigned int);
  31                add_to_platform_keyring("IPL:db", ptr, len);
  32                ptr += len;
  33        }
  34        return 0;
  35}
  36late_initcall(load_ipl_certs);
  37