security/integrity/platform_certs/load_ipl_s390.c

   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  */
  18 static 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 }
  36 late_initcall(load_ipl_certs);