build: Optionally provide file checksums in package metadata
This may be useful if you don't entirely trust your flash and want to be able to check for corruptions. Signed-off-by: Michal Hrusecky <Michal@Hrusecky.net>
This commit is contained in:
Michal Hrusecky
Jo-Philipp Wich
parent
69dfdda157
commit
74450124f6
@ -68,6 +68,14 @@ menu "Global build settings"
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This removes all ipkg/opkg status data files from the target directory
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before building the root filesystem.
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config IPK_FILES_CHECKSUMS
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bool
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prompt "Record files checksums in package metadata"
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default n
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help
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This makes file checksums part of package metadata. It increases size
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but provides you with pkg_check command to check for flash coruptions.
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config INCLUDE_CONFIG
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bool "Include build configuration in firmware" if DEVEL
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default n
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@ -199,6 +199,15 @@ $(_endef)
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$(CheckDependencies)
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$(RSTRIP) $$(IDIR_$(1))
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ifneq ($$(CONFIG_IPK_FILES_CHECKSUMS),)
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(cd $$(IDIR_$(1)); \
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( \
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find . -type f \! -path ./CONTROL/\* -exec sha256sum \{\} \; 2> /dev/null | \
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sed 's|\([[:blank:]]\)\./|\1/|' > $$(IDIR_$(1))/CONTROL/files-sha256 \
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) || true \
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)
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endif
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(cd $$(IDIR_$(1))/CONTROL; \
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( \
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echo "$$$$CONTROL"; \
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@ -195,6 +195,8 @@ define Package/base-files/install
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mkdir -p $(1)/etc/opkg; \
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$(call FeedSourcesAppend,$(1)/etc/opkg/distfeeds.conf); \
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$(VERSION_SED_SCRIPT) $(1)/etc/opkg/distfeeds.conf)
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$(if $(CONFIG_IPK_FILES_CHECKSUMS), \
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rm -f $(1)/sbin/pkg_check,)
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endef
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ifneq ($(DUMP),1)
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130
package/base-files/files/sbin/pkg_check
Executable file
130
package/base-files/files/sbin/pkg_check
Executable file
@ -0,0 +1,130 @@
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#!/bin/sh
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#
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# Package checksums checking script
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# (C) 2018 CZ.NIC, z.s.p.o.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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ERRFATAL="no"
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QUIET="yes"
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MISSING=""
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SUMMARY=""
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NL="
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"
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# Arguments parsing
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while expr "x$1" : "x-" > /dev/null; do
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if [ "x$1" = "x-s" ]; then
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ERRFATAL="yes"
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shift
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elif [ "x$1" = "x-v" ]; then
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QUIET=" no"
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shift
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else
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echo "Usage: $(basename $0) [-s] [-v] [pkg1 pkg2 ...]"
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echo
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echo " -s Stop on first change"
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echo " -v Verbose"
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if [ "x$1" = "x-h" ]; then
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exit 0
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else
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echo
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echo "ERROR: Unknown option '$1'"
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exit 1
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fi
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fi
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done
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# Check all packages by default
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if [ -z "$1" ]; then
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set $(cd /usr/lib/opkg/info/; for i in *.files-sha256sum; do basename $i .files-sha256sum; done)
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fi
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# Iterate over packages
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while [ "$1" ]; do
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if [ \! -f "/usr/lib/opkg/info/$1.files-sha256sum" ]; then
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if [ "$ERRFATAL" = no ]; then
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echo " * No checksums for $1 - skipping"
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echo
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else
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echo " * No checksums for $1 - exiting"
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exit 1
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fi
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if [ -z "$MISSING" ]; then
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MISSING="$1"
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else
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MISSING="$MISSING, $1"
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fi
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shift
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continue
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fi
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[ $QUIET = yes ] || echo " * Checking package $1:"
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ERR=""
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CHECK="`sha256sum -c /usr/lib/opkg/info/$1.files-sha256sum 2> /dev/null`"
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# Are the changed files config files?
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if [ $? -ne 0 ] && [ "`cat "/usr/lib/opkg/info/$1.files-sha256sum"`" ]; then
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NEWCHECK="`echo "$CHECK" | grep '^.*: OK$'`"
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for i in `echo "$CHECK" | sed -n 's|^\(.*\): FAILED$|\1|p'`; do
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if [ "`grep "^$i\$" "/usr/lib/opkg/info/$1.conffiles" 2> /dev/null`" ] || \
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[ "`echo "$i" | grep "^/etc/uci-defaults/"`" ]; then
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NEWCHECK="${NEWCHECK}${NL}${i}: CONFIGURED"
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else
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NEWCHECK="${NEWCHECK}${NL}${i}: FAILED"
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ERR="y"
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fi
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done
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CHECK="$NEWCHECK"
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fi
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# Do we have changed files or not?
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if [ -z "$ERR" ]; then
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[ $QUIET = yes ] || [ -z "`cat "/usr/lib/opkg/info/$1.files-sha256sum"`" ] || echo "$CHECK" | sed 's|^| - |'
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[ $QUIET = yes ] || echo " * Package $1 is ok"
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[ $QUIET = yes ] || echo
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else
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if [ $QUIET = yes ]; then
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echo " * Changes found in package $1:"
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echo "$CHECK" | sed -n 's|^\(.*:[[:blank:]]*FAILED\)$| - \1|p'
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else
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echo "$CHECK" | sed 's|^| - |'
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echo " * Changes found in package $1!"
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fi
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if [ "$ERRFATAL" = yes ]; then
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echo
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echo "Exiting on first change found!"
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exit 1
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fi
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for i in `echo "$CHECK" | sed -n 's|^\(.*\): FAILED$|\1|p'`; do
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SUMMARY="${SUMMARY}${NL} - $1: $i"
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done
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echo
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fi
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shift
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done
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# If there are changed files, report them
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if [ "$SUMMARY" ]; then
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echo "Some packages contain changed files!"
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echo "Maybe something worth looking into?"
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echo "Here is the list of packages and changed files:"
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echo "$SUMMARY"
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fi
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if [ "$MISSING" ]; then
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echo "Following packages are missing checksums: $MISSING"
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fi
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if [ "$MISSING" ] || [ "$SUMMARY" ]; then
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exit 1
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fi
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