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82 lines
3.9 KiB
82 lines
3.9 KiB
8 months ago
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From fe66c5955044cf2b93fa788ae7bdfe3a07f11449 Mon Sep 17 00:00:00 2001
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From: Luca Boccassi <bluca@debian.org>
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Date: Sun, 21 May 2023 14:32:09 +0100
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Subject: [PATCH] stub/measure: document and measure .uname UKI section
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(cherry picked from commit b6f2e6860220aa89550f690b12246c4e8eb6e908)
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Resolves: RHEL-13199
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---
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man/systemd-stub.xml | 3 +++
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src/boot/measure.c | 3 +++
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src/fundamental/tpm-pcr.c | 1 +
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src/fundamental/tpm-pcr.h | 1 +
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4 files changed, 8 insertions(+)
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diff --git a/man/systemd-stub.xml b/man/systemd-stub.xml
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index 415d663f53..85d30129d6 100644
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--- a/man/systemd-stub.xml
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+++ b/man/systemd-stub.xml
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@@ -57,6 +57,9 @@
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry> file of
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the OS the kernel belongs to, in the <literal>.osrel</literal> PE section.</para></listitem>
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+ <listitem><para>Kernel version information, i.e. the output of <command>uname -r</command> for the
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+ kernel included in the UKI, in the <literal>.uname</literal> PE section.</para></listitem>
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+
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<listitem><para>The initrd will be loaded from the <literal>.initrd</literal> PE section.
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</para></listitem>
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diff --git a/src/boot/measure.c b/src/boot/measure.c
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index 0bbd386449..67ab84753e 100644
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--- a/src/boot/measure.c
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+++ b/src/boot/measure.c
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@@ -79,6 +79,7 @@ static int help(int argc, char *argv[], void *userdata) {
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" --initrd=PATH Path to initrd image file %7$s .initrd\n"
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" --splash=PATH Path to splash bitmap file %7$s .splash\n"
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" --dtb=PATH Path to Devicetree file %7$s .dtb\n"
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+ " --uname=PATH Path to 'uname -r' file %7$s .uname\n"
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" --pcrpkey=PATH Path to public key for PCR signatures %7$s .pcrpkey\n"
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"\nSee the %2$s for details.\n",
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program_invocation_short_name,
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@@ -118,6 +119,7 @@ static int parse_argv(int argc, char *argv[]) {
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ARG_INITRD,
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ARG_SPLASH,
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ARG_DTB,
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+ ARG_UNAME,
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_ARG_PCRSIG, /* the .pcrsig section is not input for signing, hence not actually an argument here */
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_ARG_SECTION_LAST,
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ARG_PCRPKEY = _ARG_SECTION_LAST,
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@@ -139,6 +141,7 @@ static int parse_argv(int argc, char *argv[]) {
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{ "initrd", required_argument, NULL, ARG_INITRD },
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{ "splash", required_argument, NULL, ARG_SPLASH },
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{ "dtb", required_argument, NULL, ARG_DTB },
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+ { "uname", required_argument, NULL, ARG_UNAME },
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{ "pcrpkey", required_argument, NULL, ARG_PCRPKEY },
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{ "current", no_argument, NULL, 'c' },
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{ "bank", required_argument, NULL, ARG_BANK },
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diff --git a/src/fundamental/tpm-pcr.c b/src/fundamental/tpm-pcr.c
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index 7609d83c2e..0685d37b05 100644
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--- a/src/fundamental/tpm-pcr.c
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+++ b/src/fundamental/tpm-pcr.c
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@@ -11,6 +11,7 @@ const char* const unified_sections[_UNIFIED_SECTION_MAX + 1] = {
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[UNIFIED_SECTION_INITRD] = ".initrd",
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[UNIFIED_SECTION_SPLASH] = ".splash",
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[UNIFIED_SECTION_DTB] = ".dtb",
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+ [UNIFIED_SECTION_UNAME] = ".uname",
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[UNIFIED_SECTION_PCRSIG] = ".pcrsig",
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[UNIFIED_SECTION_PCRPKEY] = ".pcrpkey",
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NULL,
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diff --git a/src/fundamental/tpm-pcr.h b/src/fundamental/tpm-pcr.h
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index 235d4841b0..24240b82ed 100644
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--- a/src/fundamental/tpm-pcr.h
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+++ b/src/fundamental/tpm-pcr.h
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@@ -34,6 +34,7 @@ typedef enum UnifiedSection {
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UNIFIED_SECTION_INITRD,
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UNIFIED_SECTION_SPLASH,
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UNIFIED_SECTION_DTB,
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+ UNIFIED_SECTION_UNAME,
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UNIFIED_SECTION_PCRSIG,
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UNIFIED_SECTION_PCRPKEY,
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_UNIFIED_SECTION_MAX,
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