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Add verity hash passthrough

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Read the verity hash from the kernel binary and pass it to the running
system via the kernel command line
This commit is contained in:
Matthew Garrett 2015-05-28 11:15:30 -07:00
parent 2755ecd157
commit e5ee3e8fa5
3 changed files with 30 additions and 0 deletions
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3
grub-core/loader/i386/efi/linux.c
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@ -27,6 +27,8 @@
#include <grub/lib/cmdline.h>
#include <grub/efi/efi.h>
#include "../verity-hash.h"
GRUB_MOD_LICENSE ("GPLv3+");
static grub_dl_t my_mod;
@ -288,6 +290,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
linux_cmdline + sizeof (LINUX_IMAGE) - 1,
lh.cmdline_size - (sizeof (LINUX_IMAGE) - 1));
grub_pass_verity_hash(&lh, linux_cmdline);
lh.cmd_line_ptr = (grub_uint32_t)(grub_uint64_t)linux_cmdline;
handover_offset = lh.handover_offset;