# version 3 or later.
########################################################################
+set -e
+
PGRM=$(basename $0)
SYSSHAREDIR=${MONKEYSPHERE_SYSSHAREDIR:-"/usr/share/monkeysphere"}
subcommands:
show-key (s) output all host key information
- extend-key (e) EXPIRE extend host key expiration
+ set-expire (e) EXPIRE set host key expiration
add-hostname (n+) NAME[:PORT] add hostname user ID to host key
revoke-hostname (n-) NAME[:PORT] revoke hostname user ID
add-revoker (o) FINGERPRINT add a revoker to the host key
revoke-key (r) revoke host key
- publish-key (p) publish server host key to keyserver
+ publish-key (p) publish host key to keyserver
expert <expert-subcommand> run expert command
expert help expert command help
# function to interact with the gpg keyring
gpg_host() {
- local returnCode
+ GNUPGHOME="$GNUPGHOME_HOST" gpg "$@"
+}
- GNUPGHOME="$GNUPGHOME_HOST"
- export GNUPGHOME
+# command to list the info about the host key, in colon format
+gpg_host_list() {
+ gpg_host --list-keys --with-colons --fixed-list-mode \
+ --with-fingerprint --with-fingerprint \
+ "0x${HOST_FINGERPRINT}!"
+
+}
- # NOTE: we supress this warning because we need the monkeysphere
- # user to be able to read the host pubring. we realize this might
- # be problematic, but it's the simplest solution, without too much
- # loss of security.
- gpg "$@"
+# command for edit key scripts, takes scripts on stdin
+gpg_host_edit() {
+ gpg_host --quiet --command-fd 0 --edit-key \
+ "0x${HOST_FINGERPRINT}!" "$@"
}
# output just key fingerprint
-fingerprint_server_key() {
+fingerprint_host_key() {
# set the pipefail option so functions fails if can't read sec key
set -o pipefail
grep '^fpr:' | head -1 | cut -d: -f10 2>/dev/null
}
+# output the index of a user ID on the host key
+# return 1 if user ID not found
+find_host_userid() {
+ local userID="$1"
+ local tmpuidMatch
+ local line
+
+ # match to only ultimately trusted user IDs
+ tmpuidMatch="u:$(echo $userID | gpg_escape)"
+
+ # find the index of the requsted user ID
+ # NOTE: this is based on circumstantial evidence that the order of
+ # this output is the appropriate index
+ line=$(gpg_host_list | egrep '^(uid|uat):' | cut -f2,10 -d: | \
+ grep -n -x -F "$tmpuidMatch" 2>/dev/null)
+
+ if [ "$line" ] ; then
+ echo ${line%%:*}
+ return 0
+ else
+ return 1
+ fi
+}
+
# function to check for host secret key
-check_host_keyring() {
- fingerprint_server_key >/dev/null \
- || failure "You don't appear to have a Monkeysphere host key on this server. Please run 'monkeysphere-server gen-key' first."
+check_host_fail() {
+ [ "$HOST_FINGERPRINT" ] || \
+ failure "You don't appear to have a Monkeysphere host key on this server. Please run 'monkeysphere-host expert import-key' first."
}
# show info about the host key
show_key() {
- local fingerprintPGP
local fingerprintSSH
- # FIXME: you shouldn't have to be root to see the host key fingerprint
- check_host_keyring
- fingerprintPGP=$(fingerprint_server_key)
- gpg_host "--fingerprint --list-key --list-options show-unusable-uids $fingerprintPGP" 2>/dev/null
- echo "OpenPGP fingerprint: $fingerprintPGP"
+ # FIXME: should not have to be priviledged user to see this info.
+ # should be taken from publicly accessible key files, instead of
+ # the keyring.
+
+ gpg_host --fingerprint --list-key --list-options show-unusable-uids \
+ "0x${HOST_FINGERPRINT}!" 2>/dev/null
+
+ echo "OpenPGP fingerprint: $HOST_FINGERPRINT"
if [ -f "${MHDATADIR}/ssh_host_rsa_key.pub" ] ; then
fingerprintSSH=$(ssh-keygen -l -f "${MHDATADIR}/ssh_host_rsa_key.pub" | \
else
log info "SSH host key not found."
fi
+
+ # FIXME: show expiration date
+ # FIXME: other relevant key parameters?
}
########################################################################
CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:="true"}
GNUPGHOME_HOST=${MONKEYSPHERE_GNUPGHOME_HOST:="${MHDATADIR}"}
+# host key fingerprint
+HOST_FINGERPRINT=$(fingerprint_host_key)
+
# export variables needed in su invocation
export DATE
export MODE
export KEYSERVER
export GNUPGHOME_HOST
export GNUPGHOME
+export HOST_FINGERPRINT
# get subcommand
COMMAND="$1"
[ "$COMMAND" ] || failure "Type '$PGRM help' for usage."
shift
+
case $COMMAND in
'show-key'|'show'|'s')
check_host_keyring
show_key
;;
- 'extend-key'|'e')
+ 'set-expire'|'extend-key'|'e')
check_host_keyring
- source "${MHSHAREDIR}/extend_key"
- extend_key "$@"
+ source "${MHSHAREDIR}/set_expire"
+ set_expire "$@"
;;
'add-hostname'|'add-name'|'n+')
publish_key
;;
- 'expert'|'e')
+ 'expert')
SUBCOMMAND="$1"
shift
case "$SUBCOMMAND" in
expert subcommands:
import-key (i) [NAME[:PORT]] import existing ssh key to gpg
- --keyfile (-f) FILE key file to import
- --expire (-e) EXPIRE date to expire
gen-key (g) [NAME[:PORT]] generate gpg key for the host
--length (-l) BITS key length in bits (2048)
- --expire (-e) EXPIRE date to expire
diagnostics (d) monkeysphere host status
EOF