X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=src%2Fmonkeysphere-host;h=b45b50ec60e38c9969426119c469e968751d5dbc;hb=ce45ef5702e072e869fa9d1b703f99dc740eb000;hp=540a8ab1c0e3a531ef13abf72cc5afbf761c27fa;hpb=4e0502a242b89c73535b00cc1b199dfea38ce4d4;p=monkeysphere.git diff --git a/src/monkeysphere-host b/src/monkeysphere-host index 540a8ab..b45b50e 100755 --- a/src/monkeysphere-host +++ b/src/monkeysphere-host @@ -8,7 +8,7 @@ # Daniel Kahn Gillmor # Micah Anderson # -# They are Copyright 2008-2009, and are all released under the GPL, +# They are Copyright 2008-2010, and are all released under the GPL, # version 3 or later. ######################################################################## @@ -21,7 +21,8 @@ PGRM=$(basename $0) SYSSHAREDIR=${MONKEYSPHERE_SYSSHAREDIR:-"/usr/share/monkeysphere"} export SYSSHAREDIR -. "${SYSSHAREDIR}/common" || exit 1 +. "${SYSSHAREDIR}/defaultenv" +. "${SYSSHAREDIR}/common" SYSDATADIR=${MONKEYSPHERE_SYSDATADIR:-"/var/lib/monkeysphere"} export SYSDATADIR @@ -33,7 +34,9 @@ MHSHAREDIR="${SYSSHAREDIR}/mh" MHDATADIR="${SYSDATADIR}/host" # host pub key files -HOST_KEY_FILE="${SYSDATADIR}/ssh_host_rsa_key.pub.gpg" +HOST_KEY_FILE="${SYSDATADIR}/host_keys.pub.gpg" +# host pub key fingerprints file +HOST_KEY_FPR_FILE="${SYSDATADIR}/host_keys.fprs" # UTC date in ISO 8601 format if needed DATE=$(date -u '+%FT%T') @@ -41,9 +44,6 @@ DATE=$(date -u '+%FT%T') # unset some environment variables that could screw things up unset GREP_OPTIONS -# default return code -RETURN=0 - ######################################################################## # FUNCTIONS ######################################################################## @@ -54,18 +54,21 @@ usage: $PGRM [options] [args] Monkeysphere host admin tool. subcommands: - import-key (i) FILE NAME[:PORT] import existing ssh key to gpg - show-key (s) output all host key information - publish-key (p) publish host key to keyserver - 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 (r+) [KEYID|FILE] add a revoker to the host key - revoke-key generate and/or publish revocation - certificate for host key - - version (v) show version number - help (h,?) this help + import-key (i) FILE SERVICENAME import PEM-encoded key from file + show-keys (s) [KEYID ...] output host key information + publish-keys (p) [KEYID ...] publish key(s) to keyserver + set-expire (e) EXPIRE [KEYID] set key expiration + add-servicename (n+) SERVICENAME [KEYID] + add a service name to key + revoke-servicename (n-) SERVICENAME [KEYID] + revoke a service name from key + add-revoker (r+) REVOKER_KEYID|FILE [KEYID] + add a revoker to key + revoke-key [KEYID] generate and/or publish revocation + certificate for key + + version (v) show version number + help (h,?) this help See ${PGRM}(8) for more info. EOF @@ -76,93 +79,123 @@ gpg_host() { GNUPGHOME="$GNUPGHOME_HOST" gpg --no-greeting --quiet --no-tty "$@" } -# command to list the info about the host key, in colon format, to -# stdout -gpg_host_list() { +# list the info about the a key, in colon format, to stdout +gpg_host_list_keys() { gpg_host --list-keys --with-colons --fixed-list-mode \ --with-fingerprint --with-fingerprint \ - "0x${HOST_FINGERPRINT}!" - + "$1" } -# command for edit key scripts, takes scripts on stdin +# edit key scripts, takes scripts on stdin, and keyID as first input gpg_host_edit() { - gpg_host --command-fd 0 --edit-key "0x${HOST_FINGERPRINT}!" "$@" + gpg_host --command-fd 0 --edit-key "$@" } -# export the host public key to the monkeysphere gpg pub key file +# export the monkeysphere gpg pub key file update_gpg_pub_file() { log debug "updating openpgp public key file '$HOST_KEY_FILE'..." - gpg_host --export --armor --export-options export-minimal \ - "0x${HOST_FINGERPRINT}!" > "$HOST_KEY_FILE" + gpg_host --export --armor --export-options export-minimal > "$HOST_KEY_FILE" + log debug "updating fingerprint file '$HOST_KEY_FPR_FILE'..." + gpg_host --list-secret-key --with-colons --with-fingerprint \ + | awk -F: '/^fpr:/{ print $10 }' > "$HOST_KEY_FPR_FILE" } -# load the host fingerprint into the fingerprint variable, using the -# export gpg pub key file -# FIXME: this seems much less than ideal, with all this temp keyring -# stuff. is there a way we can do this without having to create temp -# files? what if we stored the fingerprint in MHDATADIR/fingerprint? -load_fingerprint() { - if [ -f "$HOST_KEY_FILE" ] ; then - HOST_FINGERPRINT=$( \ - (FUBAR=$(mktemp -d) && export GNUPGHOME="$FUBAR" \ - && gpg --quiet --import \ - && gpg --quiet --list-keys --with-colons --with-fingerprint \ - && rm -rf "$FUBAR") <"$HOST_KEY_FILE" \ - | grep '^fpr:' | cut -d: -f10 ) - else - failure "host key gpg pub file not found." - fi -} +host_fingerprints() { + local fprs=($(cat "$HOST_KEY_FPR_FILE")) -# load the host fingerprint into the fingerprint variable, using the -# gpg host secret key -load_fingerprint_secret() { - HOST_FINGERPRINT=$( \ - gpg_host --list-secret-key --with-colons --with-fingerprint \ - | grep '^fpr:' | cut -d: -f10 ) + log debug "host key fingerprints:" + printf '%s\n' "${fprs[@]}" | log debug + printf '%s\n' "${fprs[@]}" } -# fail if host key present -check_host_key() { - [ ! -s "$HOST_KEY_FILE" ] \ - || failure "An OpenPGP host key already exists." +# check that the service name is well formed +check_service_name() { + local name="$1" + log error "FIX ME: check service name" } # fail if host key not present -check_host_no_key() { - [ -s "$HOST_KEY_FILE" ] \ +check_no_keys() { + [ -s "$HOST_KEY_FILE" ] || [ -s "$HOST_KEY_FPR_FILE" ] \ || failure "You don't appear to have a Monkeysphere host key on this server. -Please run 'monkeysphere-host import-key...' first." +Please run 'monkeysphere-host import-key' import a key." +} + +# key input to functions, outputs full fingerprint of specified key if +# found +check_key_input() { + local keyID="$1" + # array of fingerprints + local fprs=($(host_fingerprints)) + + case ${#fprs[@]} in + 0) + failure "You don't appear to have any Monkeysphere host keys. +Please run 'monkeysphere-host import-key' to import a key." + ;; + 1) + : + ;; + *) + if [ -z "$keyID" ] ; then + failure "Keyring contains multiple keys. Please specify one to act on (see 'monkeysphere-host show-key')." + fi + ;; + esac + printf '%s\n' "${fprs[@]}" | grep "${keyID}$" \ + || failure "Key '$keyID' not found." } -# output the index of a user ID on the host key -# return 1 if user ID not found -find_host_userid() { - local userID="$1" +# return 0 if user ID was found. +# return 1 if user ID not found. +check_key_userid() { + local keyID="$1" + local userID="$2" local tmpuidMatch - local line - # match to only ultimately trusted user IDs - tmpuidMatch="u:$(echo $userID | gpg_escape)" + # match to only "unknown" user IDs (host has no need for ultimate trust) + tmpuidMatch="uid:-:$(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 "$tmpuidMatch" 2>/dev/null) + # See whether the requsted user ID is present + gpg_host_list_keys "$keyID" | cut -f1,2,10 -d: | \ + grep -q -x -F "$tmpuidMatch" 2>/dev/null +} + +# run command looped over keys +multi_key() { + local cmd="$1" + shift + local keys=$@ + local i=0 + local fprs=($(host_fingerprints)) + local key - if [ "$line" ] ; then - echo ${line%%:*} - return 0 + check_no_keys + + if [[ -z "$1" || "$1" == '--all' ]] ; then + keys="${fprs[@]}" else - return 1 + for key in $keys ; do + printf '%s\n' "${fprs[@]}" | grep "${key}$" \ + || failure "Key '$key' not found." + done fi + + for key in $keys ; do + if (( i++ > 0 )) ; then + echo "##############################" + fi + eval "$cmd" "$key" + done } -# show info about the host key +# show info about the a key show_key() { + local id="$1" local GNUPGHOME + local TMPSSH + local fingerprint + local revokers # tmp gpghome dir export GNUPGHOME=$(msmktempdir) @@ -175,22 +208,33 @@ show_key() { # create the ssh key TMPSSH="$GNUPGHOME"/ssh_host_key_rsa_pub - openpgp2ssh <"$HOST_KEY_FILE" 2>/dev/null >"$TMPSSH" + gpg --export "$id" | openpgp2ssh 2>/dev/null >"$TMPSSH" # get the gpg fingerprint - HOST_FINGERPRINT=$(gpg --quiet --list-keys --with-colons --with-fingerprint \ + fingerprint=$(gpg --quiet --list-keys \ + --with-colons --with-fingerprint "$id" \ | grep '^fpr:' | cut -d: -f10 ) # list the host key info # FIXME: make no-show-keyring work so we don't have to do the grep'ing # FIXME: can we show uid validity somehow? - gpg --list-keys --fingerprint \ - --list-options show-unusable-uids 2>/dev/null \ + gpg --list-keys --list-options show-unusable-uids "$id" 2>/dev/null \ | grep -v "^${GNUPGHOME}/pubring.gpg$" \ | egrep -v '^-+$' + # list revokers, if there are any + revokers=$(gpg --list-keys --with-colons --fixed-list-mode "$id" \ + | awk -F: '/^rvk:/{ print $10 }' ) + if [ "$revokers" ] ; then + echo "The following keys are allowed to revoke this host key:" + for key in $revokers ; do + echo "revoker: $key" + done + echo + fi + # list the pgp fingerprint - echo "OpenPGP fingerprint: $HOST_FINGERPRINT" + echo "OpenPGP fingerprint: $fingerprint" # list the ssh fingerprint echo -n "ssh fingerprint: " @@ -215,10 +259,12 @@ LOG_LEVEL=${MONKEYSPHERE_LOG_LEVEL:=$LOG_LEVEL} KEYSERVER=${MONKEYSPHERE_KEYSERVER:=$KEYSERVER} CHECK_KEYSERVER=${MONKEYSPHERE_CHECK_KEYSERVER:=$CHECK_KEYSERVER} MONKEYSPHERE_USER=${MONKEYSPHERE_MONKEYSPHERE_USER:=$MONKEYSPHERE_USER} +MONKEYSPHERE_GROUP=$(get_primary_group "$MONKEYSPHERE_USER") PROMPT=${MONKEYSPHERE_PROMPT:=$PROMPT} # other variables GNUPGHOME_HOST=${MONKEYSPHERE_GNUPGHOME_HOST:="${MHDATADIR}"} +LOG_PREFIX=${MONKEYSPHERE_LOG_PREFIX:='ms: '} # export variables needed in su invocation export DATE @@ -226,83 +272,73 @@ export LOG_LEVEL export KEYSERVER export CHECK_KEYSERVER export MONKEYSPHERE_USER +export MONKEYSPHERE_GROUP export PROMPT export GNUPGHOME_HOST export GNUPGHOME export HOST_FINGERPRINT +export LOG_PREFIX + +if [ "$#" -eq 0 ] ; then + usage + failure "Please supply a subcommand." +fi # get subcommand COMMAND="$1" -[ "$COMMAND" ] || failure "Type '$PGRM help' for usage." shift case $COMMAND in 'import-key'|'i') - check_host_key source "${MHSHAREDIR}/import_key" import_key "$@" ;; - 'show-key'|'show'|'s') - check_host_no_key - show_key + 'show-keys'|'show-key'|'show'|'s') + multi_key show_key "$@" ;; 'set-expire'|'extend-key'|'e') - check_host_no_key - load_fingerprint source "${MHSHAREDIR}/set_expire" set_expire "$@" ;; - 'add-hostname'|'add-name'|'n+') - check_host_no_key - load_fingerprint - source "${MHSHAREDIR}/add_hostname" - add_hostname "$@" + 'add-servicename'|'add-hostname'|'add-name'|'n+') + source "${MHSHAREDIR}/add_name" + add_name "$@" ;; - 'revoke-hostname'|'revoke-name'|'n-') - check_host_no_key - load_fingerprint - source "${MHSHAREDIR}/revoke_hostname" - revoke_hostname "$@" + 'revoke-servicename'|'revoke-hostname'|'revoke-name'|'n-') + source "${MHSHAREDIR}/revoke_name" + revoke_name "$@" ;; 'add-revoker'|'r+') - check_host_no_key - load_fingerprint source "${MHSHAREDIR}/add_revoker" add_revoker "$@" ;; 'revoke-key') - check_host_no_key - load_fingerprint source "${MHSHAREDIR}/revoke_key" revoke_key "$@" ;; - 'publish-key'|'publish'|'p') - check_host_no_key - load_fingerprint + 'publish-keys'|'publish-key'|'publish'|'p') source "${MHSHAREDIR}/publish_key" - publish_key + multi_key publish_key "$@" ;; 'diagnostics'|'d') - load_fingerprint source "${MHSHAREDIR}/diagnostics" diagnostics ;; 'update-gpg-pub-file') - load_fingerprint_secret update_gpg_pub_file ;; 'version'|'v') - echo "$VERSION" + version ;; '--help'|'help'|'-h'|'h'|'?') @@ -311,8 +347,6 @@ case $COMMAND in *) failure "Unknown command: '$COMMAND' -Type '$PGRM help' for usage." +Try '$PGRM help' for usage." ;; esac - -exit "$RETURN"