You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 lines
3.0 KiB
128 lines
3.0 KiB
#!/bin/sh
|
|
# Copyright (c) 2014-2016 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
# Not technically POSIX-compliant due to use of "local", but almost every
|
|
# shell anyone uses today supports it, so its probably fine
|
|
|
|
DIR=$(dirname "$0")
|
|
[ "/${DIR#/}" != "$DIR" ] && DIR=$(dirname "$(pwd)/$0")
|
|
|
|
echo "Using verify-commits data from ${DIR}"
|
|
|
|
VERIFIED_ROOT=$(cat "${DIR}/trusted-git-root")
|
|
VERIFIED_SHA512_ROOT=$(cat "${DIR}/trusted-sha512-root-commit")
|
|
REVSIG_ALLOWED=$(cat "${DIR}/allow-revsig-commits")
|
|
|
|
HAVE_FAILED=false
|
|
IS_SIGNED () {
|
|
if [ $1 = $VERIFIED_ROOT ]; then
|
|
return 0;
|
|
fi
|
|
|
|
VERIFY_TREE=$2
|
|
NO_SHA1=$3
|
|
if [ $1 = $VERIFIED_SHA512_ROOT ]; then
|
|
if [ "$VERIFY_TREE" = "1" ]; then
|
|
echo "All Tree-SHA512s matched up to $VERIFIED_SHA512_ROOT" > /dev/stderr
|
|
fi
|
|
VERIFY_TREE=0
|
|
NO_SHA1=0
|
|
fi
|
|
|
|
if [ "$NO_SHA1" = "1" ]; then
|
|
export BITCOIN_VERIFY_COMMITS_ALLOW_SHA1=0
|
|
else
|
|
export BITCOIN_VERIFY_COMMITS_ALLOW_SHA1=1
|
|
fi
|
|
|
|
if [ "${REVSIG_ALLOWED#*$1}" != "$REVSIG_ALLOWED" ]; then
|
|
export BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG=1
|
|
else
|
|
export BITCOIN_VERIFY_COMMITS_ALLOW_REVSIG=0
|
|
fi
|
|
|
|
if ! git -c "gpg.program=${DIR}/gpg.sh" verify-commit $1 > /dev/null; then
|
|
return 1;
|
|
fi
|
|
|
|
if [ "$VERIFY_TREE" = 1 ]; then
|
|
IFS_CACHE="$IFS"
|
|
IFS='
|
|
'
|
|
for LINE in $(git ls-tree --full-tree -r $1); do
|
|
case "$LINE" in
|
|
"12"*)
|
|
echo "Repo contains symlinks" > /dev/stderr
|
|
IFS="$IFS_CACHE"
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
IFS="$IFS_CACHE"
|
|
|
|
FILE_HASHES=""
|
|
for FILE in $(git ls-tree --full-tree -r --name-only $1 | LANG=C sort); do
|
|
HASH=$(git cat-file blob $1:"$FILE" | sha512sum | { read FIRST OTHER; echo $FIRST; } )
|
|
[ "$FILE_HASHES" != "" ] && FILE_HASHES="$FILE_HASHES"$'\n'
|
|
FILE_HASHES="$FILE_HASHES$HASH $FILE"
|
|
done
|
|
HASH_MATCHES=0
|
|
MSG="$(git show -s --format=format:%B $1 | tail -n1)"
|
|
|
|
case "$MSG -" in
|
|
"Tree-SHA512: $(echo "$FILE_HASHES" | sha512sum)")
|
|
HASH_MATCHES=1;;
|
|
esac
|
|
|
|
if [ "$HASH_MATCHES" = "0" ]; then
|
|
echo "Tree-SHA512 did not match for commit $1" > /dev/stderr
|
|
HAVE_FAILED=true
|
|
return 1
|
|
fi
|
|
fi
|
|
|
|
local PARENTS
|
|
PARENTS=$(git show -s --format=format:%P $1)
|
|
for PARENT in $PARENTS; do
|
|
if IS_SIGNED $PARENT $VERIFY_TREE $NO_SHA1; then
|
|
return 0;
|
|
fi
|
|
break
|
|
done
|
|
if ! "$HAVE_FAILED"; then
|
|
echo "No parent of $1 was signed with a trusted key!" > /dev/stderr
|
|
echo "Parents are:" > /dev/stderr
|
|
for PARENT in $PARENTS; do
|
|
git show -s $PARENT > /dev/stderr
|
|
done
|
|
HAVE_FAILED=true
|
|
fi
|
|
return 1;
|
|
}
|
|
|
|
if [ x"$1" = "x" ]; then
|
|
TEST_COMMIT="HEAD"
|
|
else
|
|
TEST_COMMIT="$1"
|
|
fi
|
|
|
|
DO_CHECKOUT_TEST=0
|
|
if [ x"$2" = "x--tree-checks" ]; then
|
|
DO_CHECKOUT_TEST=1
|
|
|
|
fi
|
|
|
|
IS_SIGNED "$TEST_COMMIT" "$DO_CHECKOUT_TEST" 1
|
|
RES=$?
|
|
if [ "$RES" = 1 ]; then
|
|
if ! "$HAVE_FAILED"; then
|
|
echo "$TEST_COMMIT was not signed with a trusted key!"
|
|
fi
|
|
else
|
|
echo "There is a valid path from $TEST_COMMIT to $VERIFIED_ROOT where all commits are signed!"
|
|
fi
|
|
|
|
exit $RES
|