grub: build reproducibly

11 files changed, 406 insertions, 0 deletions

diff --git a/resources/grub/patch/reproducible/[PATCH v3 1_3] mkstandalone: add argument --fixed-time to override mtime of files.eml b/resources/grub/patch/reproducible/[PATCH v3 1_3] mkstandalone: add argument --fixed-time to override mtime of files.eml
new file mode 100644
index 0000000..78d9f3d
--- /dev/null
+++ b/resources/grub/patch/reproducible/[PATCH v3 1_3] mkstandalone: add argument --fixed-time to override mtime of files.eml
@@ -0,0 +1,141 @@
+Return-path: <grub-devel-bounces+info=gluglug.org.uk@gnu.org>

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+	id 1a4v9n-0005Bc-ER; Fri, 04 Dec 2015 19:32:36 +0100

+From: Alexander Couzens <lynxis@fe80.eu>

+To: grub-devel@gnu.org

+Subject: [PATCH v3 1/3] mkstandalone: add argument --fixed-time to override

+	mtime of files

+Date: Fri,  4 Dec 2015 19:32:20 +0100

+Message-Id: <1449253942-29510-2-git-send-email-lynxis@fe80.eu>

+X-Mailer: git-send-email 2.6.3

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+X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]

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+Reply-To: The development of GNU GRUB <grub-devel@gnu.org>

+List-Id: The development of GNU GRUB <grub-devel.gnu.org>

+List-Unsubscribe: <https://lists.gnu.org/mailman/options/grub-devel>,

+	<mailto:grub-devel-request@gnu.org?subject=unsubscribe>

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+

+mkstandalone adds several files to an archive. Doing this it uses the

+mtime to give these files a timestamp.

+--fixed-time <TIME_EPOCH> overrides these timestamps with a given.

+

+Replacing all timestamps with a specific one is required

+to get reproducible builds. See source epoch specification of

+reproducible-builds.org

+---

+ util/grub-mkstandalone.c | 15 ++++++++++++++-

+ 1 file changed, 14 insertions(+), 1 deletion(-)

+

+diff --git a/util/grub-mkstandalone.c b/util/grub-mkstandalone.c

+index 4907d44..779c13c 100644

+--- a/util/grub-mkstandalone.c

++++ b/util/grub-mkstandalone.c

+@@ -30,6 +30,7 @@

+ #pragma GCC diagnostic error "-Wmissing-prototypes"

+ #pragma GCC diagnostic error "-Wmissing-declarations"

+ 

++static time_t fixed_time;

+ static char *output_image;

+ static char **files;

+ static int nfiles;

+@@ -48,6 +49,7 @@ static struct argp_option options[] = {

+    0, N_("save output in FILE [required]"), 2},

+   {"format", 'O', N_("FILE"), 0, 0, 2},

+   {"compression", 'C', "xz|none|auto", OPTION_HIDDEN, 0, 2},

++  {"fixed-time", 0, N_("TIMEEPOCH"), 0, N_("Use a fixed timestamp to override mtime of all files. Time since epoch is used."), 2},

+   {0, 0, 0, 0, 0, 0}

+ };

+ 

+@@ -72,6 +74,7 @@ help_filter (int key, const char *text, void *input __attribute__ ((unused)))

+ static error_t

+ argp_parser (int key, char *arg, struct argp_state *state)

+ {

++  char *b;

+   if (key == 'C')

+     key = GRUB_INSTALL_OPTIONS_INSTALL_CORE_COMPRESS;

+ 

+@@ -80,6 +83,14 @@ argp_parser (int key, char *arg, struct argp_state *state)

+ 

+   switch (key)

+     {

++    case 't':

++      fixed_time = strtoll (arg, &b, 10);

++      if (*b !='\0') {

++        printf (_("invalid fixed time number: %s\n"), arg);

++        argp_usage (state);

++        exit (1);

++      }

++      break;

+ 

+     case 'o':

+       if (output_image)

+@@ -192,7 +203,8 @@ add_tar_file (const char *from,

+   if (grub_util_is_special_file (from))

+     return;

+ 

+-  mtime = grub_util_get_mtime (from);

++  /* use fixed_time if given for mtime */

++  mtime = fixed_time != -1 ? fixed_time : grub_util_get_mtime (from);

+ 

+   optr = tcn = xmalloc (strlen (to) + 1);

+   for (iptr = to; *iptr == '/'; iptr++);

+@@ -293,6 +305,7 @@ main (int argc, char *argv[])

+   const char *pkglibdir;

+   int i;

+ 

++  fixed_time = -1;

+   grub_util_host_init (&argc, &argv);

+   grub_util_disable_fd_syncs ();

+ 

+-- 

+2.6.3

+

+

+_______________________________________________

+Grub-devel mailing list

+Grub-devel@gnu.org

+https://lists.gnu.org/mailman/listinfo/grub-devel

diff --git a/resources/grub/patch/reproducible/[PATCH v3 2_3] mkrescue: add argument --fixed-time to get reproducible uuids.eml b/resources/grub/patch/reproducible/[PATCH v3 2_3] mkrescue: add argument --fixed-time to get reproducible uuids.eml
new file mode 100644
index 0000000..aba3421
--- /dev/null
+++ b/resources/grub/patch/reproducible/[PATCH v3 2_3] mkrescue: add argument --fixed-time to get reproducible uuids.eml
@@ -0,0 +1,136 @@
+Return-path: <grub-devel-bounces+info=gluglug.org.uk@gnu.org>

+Envelope-to: info@gluglug.org.uk

+Delivery-date: Fri, 04 Dec 2015 19:32:23 +0100

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+	id 1a4v9p-0005Bc-Qw; Fri, 04 Dec 2015 19:32:38 +0100

+From: Alexander Couzens <lynxis@fe80.eu>

+To: grub-devel@gnu.org

+Subject: [PATCH v3 2/3] mkrescue: add argument --fixed-time to get

+	reproducible uuids

+Date: Fri,  4 Dec 2015 19:32:21 +0100

+Message-Id: <1449253942-29510-3-git-send-email-lynxis@fe80.eu>

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+List-Unsubscribe: <https://lists.gnu.org/mailman/options/grub-devel>,

+	<mailto:grub-devel-request@gnu.org?subject=unsubscribe>

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+

+The uuid generation is based on the time.

+---

+ util/grub-mkrescue.c | 16 +++++++++++++++-

+ 1 file changed, 15 insertions(+), 1 deletion(-)

+

+diff --git a/util/grub-mkrescue.c b/util/grub-mkrescue.c

+index 4511826..1af1da2 100644

+--- a/util/grub-mkrescue.c

++++ b/util/grub-mkrescue.c

+@@ -52,6 +52,7 @@ static int xorriso_arg_alloc;

+ static char **xorriso_argv;

+ static char *iso_uuid;

+ static char *iso9660_dir;

++static time_t fixed_time;

+ 

+ static void

+ xorriso_push (const char *val)

+@@ -110,6 +111,7 @@ static struct argp_option options[] = {

+   {"product-version", OPTION_PRODUCT_VERSION, N_("STRING"), 0, N_("use STRING as product version"), 2},

+   {"sparc-boot", OPTION_SPARC_BOOT, 0, 0, N_("enable sparc boot. Disables HFS+, APM, ARCS and boot as disk image for i386-pc"), 2},

+   {"arcs-boot", OPTION_ARCS_BOOT, 0, 0, N_("enable ARCS (big-endian mips machines, mostly SGI) boot. Disables HFS+, APM, sparc64 and boot as disk image for i386-pc"), 2},

++  {"fixed-time", 0, N_("TIMEEPOCH"), 0, N_("use a fixed timestamp for uuid generation"), 2},

+   {0, 0, 0, 0, 0, 0}

+ };

+ 

+@@ -153,6 +155,8 @@ enum {

+ static error_t 

+ argp_parser (int key, char *arg, struct argp_state *state)

+ {

++  char *b;

++

+   if (grub_install_parse (key, arg))

+     return 0;

+   switch (key)

+@@ -212,6 +216,15 @@ argp_parser (int key, char *arg, struct argp_state *state)

+       xorriso = xstrdup (arg);

+       return 0;

+ 

++    case 't':

++      fixed_time = strtoll (arg, &b, 10);

++      if (*b !='\0') {

++        printf (_("invalid fixed time number: %s\n"), arg);

++        argp_usage (state);

++        exit (1);

++      }

++      return 0;

++

+     default:

+       return ARGP_ERR_UNKNOWN;

+     }

+@@ -431,6 +444,7 @@ main (int argc, char *argv[])

+ 

+   pkgdatadir = grub_util_get_pkgdatadir ();

+ 

++  fixed_time = -1;

+   product_name = xstrdup (PACKAGE_NAME);

+   product_version = xstrdup (PACKAGE_VERSION);

+   xorriso = xstrdup ("xorriso");

+@@ -541,7 +555,7 @@ main (int argc, char *argv[])

+   {

+     time_t tim;

+     struct tm *tmm;

+-    tim = time (NULL);

++    tim = fixed_time != -1 ? fixed_time : time (NULL);

+     tmm = gmtime (&tim);

+     iso_uuid = xmalloc (55);

+     grub_snprintf (iso_uuid, 50,

+-- 

+2.6.3

+

+

+_______________________________________________

+Grub-devel mailing list

+Grub-devel@gnu.org

+https://lists.gnu.org/mailman/listinfo/grub-devel

diff --git a/resources/grub/patch/reproducible/[PATCH v3 3_3] Makefile_coreboot use SOURCE_DATE_EPOCH as time source if set.eml b/resources/grub/patch/reproducible/[PATCH v3 3_3] Makefile_coreboot use SOURCE_DATE_EPOCH as time source if set.eml
new file mode 100644
index 0000000..941c3c8
--- /dev/null
+++ b/resources/grub/patch/reproducible/[PATCH v3 3_3] Makefile_coreboot use SOURCE_DATE_EPOCH as time source if set.eml
@@ -0,0 +1,92 @@
+Return-path: <grub-devel-bounces+info=gluglug.org.uk@gnu.org>

+Envelope-to: info@gluglug.org.uk

+Delivery-date: Fri, 04 Dec 2015 19:32:34 +0100

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+	id 1a4v9s-0005Bc-8z; Fri, 04 Dec 2015 19:32:41 +0100

+From: Alexander Couzens <lynxis@fe80.eu>

+To: grub-devel@gnu.org

+Subject: [PATCH v3 3/3] Makefile/coreboot use SOURCE_DATE_EPOCH as time source

+	if set

+Date: Fri,  4 Dec 2015 19:32:22 +0100

+Message-Id: <1449253942-29510-4-git-send-email-lynxis@fe80.eu>

+X-Mailer: git-send-email 2.6.3

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+Reply-To: The development of GNU GRUB <grub-devel@gnu.org>

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+List-Unsubscribe: <https://lists.gnu.org/mailman/options/grub-devel>,

+	<mailto:grub-devel-request@gnu.org?subject=unsubscribe>

+List-Archive: <http://lists.gnu.org/archive/html/grub-devel>

+List-Post: <mailto:grub-devel@gnu.org>

+List-Help: <mailto:grub-devel-request@gnu.org?subject=help>

+List-Subscribe: <https://lists.gnu.org/mailman/listinfo/grub-devel>,

+	<mailto:grub-devel-request@gnu.org?subject=subscribe>

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+

+mkstandalone sets timestamps for files which can be overriden by a fixed_timestamp.

+This makes it possible to build reproducible builds for coreboot.

+

+To build a reproducible build of grub for coreboot do:

+export SOURCE_DATE_EPOCH=1134242

+make default_payload.elf

+---

+ Makefile.am | 2 +-

+ 1 file changed, 1 insertion(+), 1 deletion(-)

+

+diff --git a/Makefile.am b/Makefile.am

+index 994ebbd..5c756d7 100644

+--- a/Makefile.am

++++ b/Makefile.am

+@@ -403,7 +403,7 @@ bootcheck: $(BOOTCHECKS)

+ 

+ if COND_i386_coreboot

+ default_payload.elf: grub-mkstandalone grub-mkimage

+-	pkgdatadir=. ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot -o $@ --modules='ahci pata ehci uhci ohci usb_keyboard usbms part_msdos xfs ext2 fat at_keyboard part_gpt usbserial_usbdebug cbfs' --install-modules='ls linux search configfile normal cbtime cbls memrw iorw minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci lsacpi chain test serial multiboot cbmemc linux16 gzio echo help' --fonts= --themes= --locales= -d grub-core/ /boot/grub/grub.cfg=$(srcdir)/coreboot.cfg

++	pkgdatadir=. ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot -o $@ --modules='ahci pata ehci uhci ohci usb_keyboard usbms part_msdos xfs ext2 fat at_keyboard part_gpt usbserial_usbdebug cbfs' --install-modules='ls linux search configfile normal cbtime cbls memrw iorw minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci lsacpi chain test serial multiboot cbmemc linux16 gzio echo help' --fonts= --themes= --locales= -d grub-core/ /boot/grub/grub.cfg=$(srcdir)/coreboot.cfg $(if $(SOURCE_DATE_EPOCH),-t $(SOURCE_DATE_EPOCH))

+ endif

+ 

+ endif

+-- 

+2.6.3

+

+

+_______________________________________________

+Grub-devel mailing list

+Grub-devel@gnu.org

+https://lists.gnu.org/mailman/listinfo/grub-devel

diff --git a/resources/scripts/helpers/build/release/docs b/resources/scripts/helpers/build/release/docs
index 966bccf..32203ac 100755
--- a/resources/scripts/helpers/build/release/docs
+++ b/resources/scripts/helpers/build/release/docs
@@ -28,9 +28,11 @@ printf 'Building the documentation release archive\n'
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 distname="libreboot_${version}_docs"
@@ -60,6 +62,8 @@ fi
 
 # include version information
 printf '%s\n' "${version}" >"${distdir}/version"
+# include version date information
+printf '%s\n' "${versiondate}" >"${distdir}/versiondate"
 
 printf 'Creating compressed documentation archive at %s\n' "${distdir}.tar.xz"
 (cd "${versiondir}/" && tar -c "${distname}/" | xz -9e >"${distname}.tar.xz")
diff --git a/resources/scripts/helpers/build/release/roms b/resources/scripts/helpers/build/release/roms
index e2ef74d..e39aca5 100755
--- a/resources/scripts/helpers/build/release/roms
+++ b/resources/scripts/helpers/build/release/roms
@@ -31,9 +31,11 @@ fi
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 romdir="${versiondir}/rom"
@@ -75,6 +77,8 @@ for payload in *; do
 
 		# Put the version string in the archive.
 		printf '%s\n' "${version}" >"${archivename}/version"
+		# Put the version date string in the archive
+		printf '%s\n' "${versiondate}" >"${archivename}/versiondate"
 
 		# Create the compressed archive.
 		tar -c "${archivename}/" | xz -9e >"../../${romdir}/${payload}/${archivename}.tar.xz"
diff --git a/resources/scripts/helpers/build/release/sha512sums b/resources/scripts/helpers/build/release/sha512sums
index 456764b..502f059 100755
--- a/resources/scripts/helpers/build/release/sha512sums
+++ b/resources/scripts/helpers/build/release/sha512sums
@@ -25,9 +25,11 @@ set -u -e
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 sha512filename="SHA512SUMS"
diff --git a/resources/scripts/helpers/build/release/src b/resources/scripts/helpers/build/release/src
index ed7ec68..294c3c2 100755
--- a/resources/scripts/helpers/build/release/src
+++ b/resources/scripts/helpers/build/release/src
@@ -28,9 +28,11 @@ printf 'Building the source release archive\n'
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 distname="libreboot_${version}_src"
@@ -65,6 +67,8 @@ fi
 
 # include version information
 printf '%s\n' "${version}" >"${distdir}/version"
+# include version date information
+printf '%s\n' "${versiondate}" >"${distdir}/versiondate"
 
 printf 'Cleaning files in %s/\n' "${distdir}"
 
diff --git a/resources/scripts/helpers/build/release/tobuild b/resources/scripts/helpers/build/release/tobuild
index da1b6d9..bc1f6dd 100755
--- a/resources/scripts/helpers/build/release/tobuild
+++ b/resources/scripts/helpers/build/release/tobuild
@@ -26,9 +26,11 @@ set -u -e
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 distname="libreboot_${version}_tobuild"
@@ -84,6 +86,8 @@ fi
 
 # include version information
 printf '%s\n' "${version}" >"${distdir}/version"
+# include version date information
+printf '%s\n' "${versiondate}" >"${distdir}/versiondate"
 
 # that is all. now tar it up
 (cd "${versiondir}/" && tar -c "${distname}/" | xz -9e >"${distname}.tar.xz")
diff --git a/resources/scripts/helpers/build/release/util b/resources/scripts/helpers/build/release/util
index 1a0d72f..3e9910d 100755
--- a/resources/scripts/helpers/build/release/util
+++ b/resources/scripts/helpers/build/release/util
@@ -44,9 +44,11 @@ fi
 if [ -f "version" ]; then
 	# _src release archive is being used
 	version="$(cat version)"
+	versiondate="$(cat versiondate)"
 else
 	# git repo is being used
 	version="$(git describe --tags HEAD)"
+	versiondate="$(git show -s --format=%ct)"
 fi
 versiondir="release/${version}"
 distname="libreboot_${version}_util"
@@ -76,6 +78,8 @@ fi
 
 # include version information
 printf '%s\n' "${version}" >"${distdir}/version"
+# include version date information
+printf '%s\n' "${versiondate}" >"${distdir}/versiondate"
 
 # --------------
 # BUC.TS related
diff --git a/resources/scripts/helpers/download/grub b/resources/scripts/helpers/download/grub
index 0012974..f823deb 100755
--- a/resources/scripts/helpers/download/grub
+++ b/resources/scripts/helpers/download/grub
@@ -58,5 +58,10 @@ git am "../resources/grub/patch/grub.johnlane.ie/0005-Cryptomount-support-for-hy
 # hotfix from kl3 (merged from autoboot) (ditto)
 git am "../resources/grub/patch/grub.johnlane.ie/0006-grub-core-disk-cryptodisk.c-Point-to-const-char.patch"
 
+# Needed for reproducible builds in GRUB
+git am "../resources/grub/patch/reproducible/"\[PATCH\ v3\ 1_3\]\ mkstandalone\:\ add\ argument\ --fixed-time\ to\ override\ mtime\ of\ files.eml
+git am "../resources/grub/patch/reproducible/"\[PATCH\ v3\ 2_3\]\ mkrescue\:\ add\ argument\ --fixed-time\ to\ get\ reproducible\ uuids.eml
+git am "../resources/grub/patch/reproducible/"\[PATCH\ v3\ 3_3\]\ Makefile_coreboot\ use\ SOURCE_DATE_EPOCH\ as\ time\ source\ if\ set.eml
+
 cd "../"
 printf "\n\n"
diff --git a/resources/utilities/grub-assemble/gen.sh b/resources/utilities/grub-assemble/gen.sh
index 36352a3..3c52a84 100755
--- a/resources/utilities/grub-assemble/gen.sh
+++ b/resources/utilities/grub-assemble/gen.sh
@@ -29,6 +29,14 @@ if [ $# != 1 ]; then
 	exit 1
 fi
 
+if [ -f "../../../versiondate" ]; then
+	# _src release archive is being used
+	versiondate="$(cat ../../../versiondate)"
+else
+	# git repo is being used
+	versiondate="$(git show -s --format=%ct)"
+fi
+
 # This is where GRUB is expected to be (outside of the grub-assemble, instead in main checkout)
 grubdir="../../../grub"
 
@@ -51,6 +59,7 @@ if [ "${1}" = "vesafb" ]; then
 	  -o "grub_vesafb.elf" \
 	  -d "${grubdir}/grub-core/" \
 	  --fonts= --themes= --locales=  \
+	  --fixed-time ${versiondate} \
 	  --modules="${grub_modules}" \
 	  --install-modules="${grub_install_modules}" \
 	  /boot/grub/grub.cfg="../../../resources/grub/config/grub_memdisk.cfg" \
@@ -65,6 +74,7 @@ then
 	  -o "grub_txtmode.elf" \
 	  -d "${grubdir}/grub-core/" \
 	  --fonts= --themes= --locales=  \
+	  --fixed-time ${versiondate} \
 	  --modules="${grub_modules}" \
 	  --install-modules="${grub_install_modules}" \
 	  /boot/grub/grub.cfg="../../../resources/grub/config/grub_memdisk.cfg" \