100 lines
2.4 KiB
Diff
100 lines
2.4 KiB
Diff
---
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grub-core/commands/tpm.c | 46 ++++++++++++++++++++++++++++++++++++----------
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util/grub-install.c | 6 ++++--
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2 files changed, 40 insertions(+), 12 deletions(-)
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--- a/grub-core/commands/tpm.c
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+++ b/grub-core/commands/tpm.c
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@@ -27,8 +27,10 @@
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#include <grub/verify.h>
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#include <grub/dl.h>
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#include <grub/extcmd.h>
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+#ifdef GRUB_MACHINE_EFI
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#include <grub/tpm2/tpm2.h>
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#include <grub/efi/efi.h>
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+#endif
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GRUB_MOD_LICENSE ("GPLv3+");
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@@ -97,12 +99,6 @@
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.verify_string = grub_tpm_verify_string,
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};
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-/*
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- * Preserve current PCR values and record them to an EFI variable
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- */
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-#define GRUB2_PCR_BITMASK_DEFAULT ((1 << 16) - 1)
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-#define GRUB2_PCR_BITMASK_ALL ((1 << 24) - 1)
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-
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static const struct grub_arg_option grub_tpm_record_pcrs_options[] =
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{
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{
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@@ -118,6 +114,14 @@
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{0, 0, 0, 0, 0, 0}
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};
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+#ifdef GRUB_MACHINE_EFI
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+
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+/*
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+ * Preserve current PCR values and record them to an EFI variable
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+ */
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+#define GRUB2_PCR_BITMASK_DEFAULT ((1 << 16) - 1)
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+#define GRUB2_PCR_BITMASK_ALL ((1 << 24) - 1)
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+
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static grub_err_t
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grub_tpm_parse_pcr_index (const char *word, const char **end_ret, unsigned int *index)
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{
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@@ -269,6 +273,10 @@
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grub_size_t size = 0;
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int n, rv = 1;
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+ /* To prevent error: unable to read PCR from TPM, if no TPM device available */
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+ if (!grub_tpm_present())
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+ return GRUB_ERR_NONE;
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+
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if (argc == 0)
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pcr_bitmask = GRUB2_PCR_BITMASK_DEFAULT;
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else
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@@ -297,6 +305,18 @@
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return rv;
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}
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+#else
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+
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+static grub_err_t
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+grub_tpm_record_pcrs (grub_extcmd_context_t ctxt __attribute__((unused)),
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+ int argc __attribute__((unused)),
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+ char **args __attribute__((unused)))
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+{
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+ return GRUB_ERR_NONE;
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+}
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+
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+#endif
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+
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static grub_extcmd_t cmd;
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GRUB_MOD_INIT (tpm)
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--- a/util/grub-install.c
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+++ b/util/grub-install.c
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@@ -1501,8 +1501,9 @@
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grub_util_unlink (load_cfg);
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- if (1)
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+ if (platform == GRUB_INSTALL_PLATFORM_X86_64_EFI && have_cryptodisk)
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{
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+ grub_install_push_module ("tpm");
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load_cfg_f = grub_util_fopen (load_cfg, "wb");
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have_load_cfg = 1;
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fprintf (load_cfg_f, "tpm_record_pcrs 0-9\n");
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@@ -1510,7 +1511,8 @@
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if (debug_image && debug_image[0])
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{
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- load_cfg_f = grub_util_fopen (load_cfg, "wb");
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+ if (!load_cfg_f)
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+ load_cfg_f = grub_util_fopen (load_cfg, "wb");
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have_load_cfg = 1;
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fprintf (load_cfg_f, "set debug='%s'\n",
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debug_image);
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