#!/bin/bash
+# this script should run without any errors.
+set -e
+
# This is a post-install script for monkeysphere, to transition an old
-# (<=0.22) setup to the new (>0.22) setup
+# (<0.23) setup to the new (>=0.23) setup
SYSDATADIR=${MONKEYSPHERE_SYSDATADIR:-"/var/lib/monkeysphere"}
MADATADIR="${SYSDATADIR}/authentication"
MHDATADIR="${SYSDATADIR}/host"
-############################################################
-### transfer host setup
+STASHDIR="${SYSDATADIR}/backup-from-0.23-transition"
-if [ -d "$SYSDATADIR"/gnupg-host ] ; then
- if [ -s "$SYSDATADIR"/ssh_host_rsa_key ] ; then
+log() {
+ printf "$@" >&2
+}
- # This would be simple, but it would generate a new pgp key,
- #and we don't want that, right?
- #monkeysphere-host expert import_key "$SYSDATADIR"/ssh_host_rsa_key
+# FIXME: implement this function better. here, we only care about
+# dots, *and* about reversing the regexification of them.
+gpg_unescape_and_unregex() {
+ sed 's/\\x5c\././g'
+}
- # create host home
- mkdir -p "${MHDATADIR}"
- mkdir -p "${MHTMPDIR}"
- mkdir -p "${GNUPGHOME_HOST}"
- chmod 700 "${GNUPGHOME_HOST}"
- # transfer the host secret key from the old home to the new
- GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --export-secret-keys \
- GNUPGHOME="$MHDATADIR" gpg --import
+is_domain_name() {
+ printf "%s" "$1" | egrep -q '^[[:alnum:]][[:alnum:]-.]*[[:alnum:]]$'
+}
- # make sure the ssh_host_rsa_key.pub and ssh_host_rsa_key.pub.gpg
- # files exist
+# run the authentication setup
+monkeysphere-authentication setup
- # anything else?
+# before 0.23, the old gnupg-host data directory used to contain the
+# trust core and the system's ssh host key.
- fi
-
- #rm -rf "$SYSDATADIR"/gnupg-host
-
-fi
+if [ -d "$SYSDATADIR"/gnupg-host ] ; then
-############################################################
-### transfer authentication setup
+### transfer identity certifiers, if they don't already exist in the
+### current setup:
+
+ if [ monkeysphere-authentication list-identity-certifiers | \
+ grep -q '^[A-F0-9]{40}:$' ] ; then
+ log 'There are already certifiers in the new system!\nNot transferring any certifiers.\n'
+ else
+ # get the old host keygrip (don't know why there would be more
+ # than one, but we'll transfer all tsigs made by any key that
+ # had been given ultimate ownertrust):
+ for authgrip in $(GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --export-ownertrust | \
+ grep ':6:$'
+ sed -r 's/^[A-F0-9]{24}([A-F0-9]{16}):6:$/\1/') ; do
+
+ # we're assuming that old id certifiers were only added by old
+ # versions of m-s c+, which added certifiers by ltsigning
+ # entire keys.
+
+ # so we'll walk the list of tsigs from the old host key, and
+ # add those keys as certifiers to the new system.
+
+ # FIXME: if an admin has run "m-s add-id-certifier $foo"
+ # multiple times for the same $foo, we'll only transfer
+ # one of those certifications (even if later
+ # certifications had different parameters).
+
+ GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --fingerprint --with-colons --fixed-list-mode --check-sigs | \
+ cut -f 1,2,5,8,9,10 -d: | \
+ egrep '^(fpr:::::|sig:!:'"$authgrip"':[[:digit:]]+ [[:digit:]]+:)' | \
+ while IFS=: read -r type validity grip trustparams trustdomain fpr ; do
+ case $type in
+ 'fpr') # this is a new key
+ keyfpr=$fpr
+ ;;
+ 'sig') # deal with all trust signatures, including
+ # regexes if present.
+ if [ "$keyfpr" ] ; then
+ trustdepth=${trustparams%% *}
+ trustlevel=${trustparams##* }
+ if [ "$trustlevel" -ge 120 ] ; then
+ truststring=full
+ elif [ "$trustlevel" -ge 60 ] ; then
+ truststring=marginal
+ else
+ # trust levels below marginal are ignored.
+ continue
+ fi
+
+ finaldomain=
+ if [ "$trustdomain" ] ; then
+ # FIXME: deal with translating
+ # $trustdomain back to a domain.
+ if [ printf "%s" "$trustdomain" | egrep -q '^<\[\^>\]\+\[@\.\][^>]+>\$$' ] ; then
+ dpart=$(printf "%s" "$trustdomain" | sed -r 's/^<\[\^>\]\+\[@\.\]([^>]+)>\$$/\1/' | gpg_unescape_and_unregex)
+ if [ is_domain_name "$dpart" ]; then
+ finaldomain="--domain $dpart"
+ else
+ log "Does not seem to be a domain name (%s), not adding certifier\n" "$dpart"
+ continue
+ fi
+ else
+ log "Does not seem to be a standard gpg domain-based tsig (%s), not adding certifier\n" "$trustdomain"
+ continue
+ fi
+ fi
+
+ CERTKEY=$(mktemp ${TMPDIR:-/tmp}/mstransition.XXXXXXXX)
+ log "Adding identity certifier with fingerprint %s\n" "$keyfpr"
+ GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --export "0x$keyfpr" --export-clean >"$CERTKEY"
+ MONKEYSPHERE_PROMPT=false monkeysphere-authentication add-identity-certifier $finaldomain --trust "$truststring" --depth "$trustdepth" "$CERTKEY"
+ rm -f "$CERTKEY"
+ # clear the fingerprint so that we don't
+ # make additional tsigs on it if more uids
+ # are present:
+ $keyfpr=
+ fi
+ ;;
+ esac
+ done
+ done
+ fi
-# should we test for something else/better than the existence of this
-# directory to know that we should go through the setup?
-if [ -d "$SYSDATADIR"/gnupg-authentication ] ; then
+### transfer host key information (if present) into the new spot
+
+ if [ -d "${MHDATADIR}" ] ; then
+ log "Not transferring host key info because host directory already exists.\n"
+ else
+ if [ -s "$SYSDATADIR"/ssh_host_rsa_key ] || \
+ GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --with-colons --list-secret-keys | grep -q '^sec:' ; then
+
+ # create host home
+ mkdir -p "${MHDATADIR}"
+ chmod 0700 "${MHDATADIR}"
+
+ log "importing host key from old monkeysphere installation\n"
+ GNUPGHOME="$SYSDATADIR"/gnupg-host gpg --export-secret-keys \
+ GNUPGHOME="$MHDATADIR" gpg --import
+
+ monkeysphere-host update-gpg-pub-file
+ else
+ log "No host key found in old monkeysphere install; not importing any host key.\n"
+ fi
+ fi
- # run the authentication setup
- monkeysphere-authentication setup
- # transfer certifiers
- # FIXME: how?
- # i think we'll need to run something like
- # gpg_core_sphere_sig_transfer after transfering certifiers ltsigs
+### get rid of this old stuff, since we've transferred it all:
- # do we need to do some sort of transfer of ownertrust?
+ mkdir -p "$STASHDIR"
+ chmod 0700 "$STASHDIR"
+ mv "${SYSDATADIR}/gnupg-host" "$STASHDIR"
+fi
- # move the authorized_keys directory
- mv "$SYSDATADIR"/authorized_keys "$MADATADIR"/
- # do we need to transfer anything else? running update-users will
- # regenerate everything else in the sphere keyring, right?
+# There is nothing in the old authentication directory that we should
+# need to keep around, but it is not unreasonable to transfer keys to
+# the new authentication keyring.
+if [ -d "${SYSDATADIR}/gnupg-authentication" ] ; then
- #rm -rf "$SYSDATADIR"/gnupg-authentication
+ GNUPGHOME="${SYSDATADIR}/gnupg-authentication" gpg --export | \
+ monkeysphere-authentication gpg-cmd --import
+ mkdir -p "$STASHDIR"
+ chmod 0700 "$STASHDIR"
+ mv "${SYSDATADIR}/gnupg-authentication" "$STASHDIR"
fi
-
projects / monkeysphere.git / commitdiff