[pacman-dev] [PATCH 1/5] pacman-key: rework importing distro/repo provided keyrings
Allan McRae
allan at archlinux.org
Tue Aug 23 02:17:15 EDT 2011
The current --reload option, apart from being non-clear in its naming,
is very limited in that only one keyring can be provided. A distribution
may want to provide multiple keyrings for various subsets of its
organisation or custom repo providers may also want to provide a keyring.
This patch adds a --populate option that reads keyrings from (by default)
/usr/share/pacman/keyrings. A keyring is named foo.gpg, with optional
foo-revoked file providing a list of revoked key ids. These files are
required to be signed (detached) by a key trusted by pacman-key, in
practice probably by the key that signed the package providing these
files. The --populate flag either updates the pacman keyring using all
keyrings in the directory or individual keyrings can be specified.
Signed-off-by: Allan McRae <allan at archlinux.org>
---
doc/pacman-key.8.txt | 8 ++-
scripts/Makefile.am | 1 +
scripts/pacman-key.sh.in | 150 +++++++++++++++++++++++-----------------------
3 files changed, 83 insertions(+), 76 deletions(-)
diff --git a/doc/pacman-key.8.txt b/doc/pacman-key.8.txt
index 9dc175c..f61c2ec 100644
--- a/doc/pacman-key.8.txt
+++ b/doc/pacman-key.8.txt
@@ -80,8 +80,12 @@ Options
*-r, \--receive* <keyserver> <keyid(s)>::
Fetch the specified keyids from the specified key server URL.
-*\--reload*::
- Reloads the keys from the keyring package.
+*\--populate* [<keyring(s)>]::
+ Reload the default keys from the (optionally provided) keyrings in
+ +{pkgdatadir}/keyrings+. Each keyring is provided in a file foo.gpg that
+ contains the keys for the foo keyring. Optionally the file foo-revoked
+ contains a list of revoked key IDs for that keyring. These files are
+ required to be signed (detached) by a trusted PGP key.
*-u, \--updatedb*::
Equivalent to \--check-trustdb in GnuPG.
diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 802b8f4..52a784a 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -44,6 +44,7 @@ edit = sed \
-e 's|@localedir[@]|$(localedir)|g' \
-e 's|@sysconfdir[@]|$(sysconfdir)|g' \
-e 's|@localstatedir[@]|$(localstatedir)|g' \
+ -e 's|@pkgdatadir[@]|$(pkgdatadir)|g' \
-e 's|@prefix[@]|$(prefix)|g' \
-e '1s|!/bin/bash|!$(BASH_SHELL)|g' \
-e 's|@PACKAGE_VERSION[@]|$(REAL_PACKAGE_VERSION)|g' \
diff --git a/scripts/pacman-key.sh.in b/scripts/pacman-key.sh.in
index 74ecfcf..8580100 100644
--- a/scripts/pacman-key.sh.in
+++ b/scripts/pacman-key.sh.in
@@ -37,8 +37,8 @@ IMPORT_TRUSTDB=0
INIT=0
LISTKEYS=0
LISTSIGS=0
+POPULATE=0
RECEIVE=0
-RELOAD=0
UPDATEDB=0
VERIFY=0
@@ -73,7 +73,8 @@ usage() {
echo "$(gettext " --import-trustdb <dir(s)> Imports ownertrust values from trustdb.gpg in dir(s)")"
echo "$(gettext " --init Ensure the keyring is properly initialized")"
echo "$(gettext " --list-sigs [<keyid(s)>] List keys and their signatures")"
- echo "$(gettext " --reload Reload the default keys")"
+ printf "$(gettext " --populate [<keyring(s)] Reload the default keys from the (given) keyrings\n\
+ in '%s'")\n" "@pkgdatadir@/keyrings"
}
version() {
@@ -139,75 +140,88 @@ check_keyring() {
verify_keyring_input() {
local ret=0;
+ local KEYRING_IMPORT_DIR='@pkgdatadir@/keyrings'
- # Verify signatures of related files, if they exist
- if [[ -r "${ADDED_KEYS}" ]]; then
- msg "$(gettext "Verifying official keys file signature...")"
- if ! "${GPG_PACMAN[@]}" --verify "${ADDED_KEYS}.sig" &>/dev/null; then
+ # Verify signatures of keyring files and association revocation files if they exist
+ msg "$(gettext "Verifying keyring file signatures...")"
+ local keyring
+ for keyring in ${KEYRINGIDS[@]}; do
+ if ! "${GPG_PACMAN[@]}" --verify "${KEYRING_IMPORT_DIR}/${keyring}.gpg.sig" &>/dev/null; then
error "$(gettext "The signature of file %s is not valid.")" "${ADDED_KEYS}"
ret=1
fi
- fi
- if [[ -r "${DEPRECATED_KEYS}" ]]; then
- msg "$(gettext "Verifying deprecated keys file signature...")"
- if ! "${GPG_PACMAN[@]}" --verify "${DEPRECATED_KEYS}.sig" &>/dev/null; then
- error "$(gettext "The signature of file %s is not valid.")" "${DEPRECATED_KEYS}"
- ret=1
+ if [[ -f "${KEYRING_IMPORT_DIR}/${keyring}-revoked" ]]; then
+ if ! "${GPG_PACMAN[@]}" --verify "${KEYRING_IMPORT_DIR}/${keyring}-revoked.sig" &>/dev/null; then
+ error "$(gettext "The signature of file %s is not valid.")" "${KEYRING_IMPORT_DIR}/${keyring}-revoked"
+ ret=1
+ fi
fi
- fi
+ done
- if [[ -r "${REMOVED_KEYS}" ]]; then
- msg "$(gettext "Verifying deleted keys file signature...")"
- if ! "${GPG_PACMAN[@]}" --verify "${REMOVED_KEYS}.sig" &>/dev/null; then
- error "$(gettext "The signature of file %s is not valid.")" "${REMOVED_KEYS}"
+ return $ret
+}
+
+populate_keyring() {
+ local KEYRING_IMPORT_DIR='@pkgdatadir@/keyrings'
+ local GPG_NOKEYRING=(gpg --batch --quiet --ignore-time-conflict --no-options --no-default-keyring --homedir ${PACMAN_KEYRING_DIR} --no-permission-warning)
+
+ local keyring
+ local ret=0
+ if [[ -z ${KEYRINGIDS[@]} ]]; then
+ # get list of all available keyrings
+ shopt -s nullglob
+ KEYRINGIDS=("$KEYRING_IMPORT_DIR"/*.gpg)
+ shopt -u nullglob
+ KEYRINGIDS=("${KEYRINGIDS[@]##*/}")
+ KEYRINGIDS=("${KEYRINGIDS[@]%.gpg}")
+ if [[ -z ${KEYRINGIDS[@]} ]]; then
+ error "$(gettext "No keyring files exist in %s.")" "$KEYRING_IMPORT_DIR"
ret=1
fi
+ else
+ # verify listed keyrings exist
+ for keyring in ${KEYRINGIDS[@]}; do
+ if [[ ! -f "$KEYRING_IMPORT_DIR/$keyring.gpg" ]]; then
+ error "$(gettext "The keyring file %s does not exist.")" "$KEYRING_IMPORT_DIR/$keyring.gpg"
+ ret=1
+ fi
+ done
fi
- return $ret
-}
+ if (( ret )); then
+ exit 1
+ fi
-reload_keyring() {
- local PACMAN_SHARE_DIR='@prefix@/share/pacman'
- local GPG_NOKEYRING=(gpg --batch --quiet --ignore-time-conflict --no-options --no-default-keyring --homedir ${PACMAN_KEYRING_DIR})
+ verify_keyring_input || exit 1
# Variable used for iterating on keyrings
local key
local key_id
- # Keyring with keys to be added to the keyring
- local ADDED_KEYS="${PACMAN_SHARE_DIR}/addedkeys.gpg"
-
- # Keyring with keys that were deprecated and will eventually be deleted
- local DEPRECATED_KEYS="${PACMAN_SHARE_DIR}/deprecatedkeys.gpg"
-
- # List of keys removed from the keyring. This file is not a keyring, unlike the others.
- # It is a textual list of values that gpg recogniezes as identifiers for keys.
- local REMOVED_KEYS="${PACMAN_SHARE_DIR}/removedkeys"
-
- verify_keyring_input || exit 1
-
# Read the key ids to an array. The conversion from whatever is inside the file
# to key ids is important, because key ids are the only guarantee of identification
# for the keys.
local -A removed_ids
- if [[ -r "${REMOVED_KEYS}" ]]; then
- while read key; do
- local key_values name
- key_values="$("${GPG_PACMAN[@]}" --quiet --with-colons --list-key "${key}" | grep ^pub | cut -d: -f5,10 --output-delimiter=' ')"
- if [[ -n $key_values ]]; then
- # The first word is the key_id
- key_id="${key_values%% *}"
- # the rest if the name of the owner
- name="${key_values#* }"
- if [[ -n ${key_id} ]]; then
- # Mark this key to be deleted
- removed_ids[$key_id]="$name"
+ for keyring in ${KEYRINGIDS[@]}; do
+ if [[ -f "${KEYRING_IMPORT_DIR}/${keyring}-revoked" ]]; then
+ while read key; do
+ local key_values name
+ # extract key ID (field 5) and the name of owner (field 10)
+ key_values="$("${GPG_PACMAN[@]}" --quiet --with-colons --list-key "${key}" 2>/dev/null | grep ^pub | cut -d: -f5,10 --output-delimiter=' ')"
+ if [[ -n $key_values ]]; then
+ # The first word is the key_id
+ key_id="${key_values%% *}"
+ # the rest is the name of the owner
+ name="${key_values#* }"
+ if [[ -n ${key_id} ]]; then
+ # Mark this key to be deleted
+ removed_ids[$key_id]="$name"
+ fi
fi
- fi
- done < "${REMOVED_KEYS}"
- fi
+ done < "${KEYRING_IMPORT_DIR}/${keyring}-revoked"
+ fi
+ done
# List of keys that must be kept installed, even if in the list of keys to be removed
local HOLD_KEYS="$(get_from "$CONFIG" "HoldKeys")"
@@ -222,33 +236,21 @@ reload_keyring() {
done
fi
- # Add keys from the current set of keys from pacman-keyring package. The web of trust will
- # be updated automatically.
- if [[ -r "${ADDED_KEYS}" ]]; then
- msg "$(gettext "Appending official keys...")"
- local add_keys="$("${GPG_NOKEYRING[@]}" --keyring "${ADDED_KEYS}" --with-colons --list-keys | grep ^pub | cut -d: -f5)"
- for key_id in ${add_keys}; do
- # There is no point in adding a key that will be deleted right after
- if [[ -z "${removed_ids[$key_id]}" ]]; then
- "${GPG_NOKEYRING[@]}" --keyring "${ADDED_KEYS}" --export "${key_id}" | "${GPG_PACMAN[@]}" --import
- fi
- done
- fi
-
- if [[ -r "${DEPRECATED_KEYS}" ]]; then
- msg "$(gettext "Appending deprecated keys...")"
- local add_keys="$("${GPG_NOKEYRING[@]}" --keyring "${DEPRECATED_KEYS}" --with-colons --list-keys | grep ^pub | cut -d: -f5)"
+ # Add keys from requested keyrings
+ for keyring in ${KEYRINGIDS[@]}; do
+ msg "$(gettext "Appending keys from %s.gpg...")" "$keyring"
+ local add_keys="$("${GPG_NOKEYRING[@]}" --keyring "${KEYRING_IMPORT_DIR}/${keyring}.gpg" --with-colons --list-keys | grep ^pub | cut -d: -f5)"
for key_id in ${add_keys}; do
# There is no point in adding a key that will be deleted right after
if [[ -z "${removed_ids[$key_id]}" ]]; then
- "${GPG_NOKEYRING[@]}" --keyring "${DEPRECATED_KEYS}" --export "${key_id}" | "${GPG_PACMAN[@]}" --import
+ "${GPG_NOKEYRING[@]}" --keyring "${KEYRING_IMPORT_DIR}/${keyring}.gpg" --export "${key_id}" | "${GPG_PACMAN[@]}" --import
fi
done
- fi
+ done
# Remove the keys not marked to keep
if (( ${#removed_ids[@]} > 0 )); then
- msg "$(gettext "Removing deleted keys from keyring...")"
+ msg "$(gettext "Removing revoked keys from keyring...")"
for key_id in "${!removed_ids[@]}"; do
echo " removing key $key_id - ${removed_ids[$key_id]}"
"${GPG_PACMAN[@]}" --quiet --batch --yes --delete-key "${key_id}"
@@ -321,8 +323,8 @@ fi
OPT_SHORT="a::d:e:f::hl::r:uv:V"
OPT_LONG="add::,config:,delete:,edit-key:,export::,finger::,gpgdir:"
-OPT_LONG+=",help,import:,import-trustdb:,init,list-keys::,list-sigs::,,receive:"
-OPT_LONG+=",reload,updatedb,verify:,version"
+OPT_LONG+=",help,import:,import-trustdb:,init,list-keys::,list-sigs::"
+OPT_LONG+=",populate::,receive:,updatedb,verify:,version"
if ! OPT_TEMP="$(parse_options $OPT_SHORT $OPT_LONG "$@")"; then
echo; usage; exit 1 # E_INVALID_OPTION;
fi
@@ -348,8 +350,8 @@ while true; do
--init) INIT=1 ;;
-l|--list-keys) LISTKEYS=1; [[ -n $2 && ${2:0:1} != "-" ]] && shift && KEYIDS=($1) ;;
--list-sigs) LISTSIGS=1; [[ -n $2 && ${2:0:1} != "-" ]] && shift && KEYIDS=($1) ;;
+ --populate) POPULATE=1; [[ -n $2 && ${2:0:1} != "-" ]] && shift && KEYRINGIDS=($1) ;;
-r|--receive) RECEIVE=1; shift; TMP=($1); KEYSERVER=${TMP[0]}; KEYIDS=(${TMP[@]:1}); unset TMP;;
- --reload) RELOAD=1 ;;
-u|--updatedb) UPDATEDB=1 ;;
-v|--verify) VERIFY=1; shift; SIGNATURE=$1 ;;
@@ -368,7 +370,7 @@ if ! type -p gpg >/dev/null; then
exit 1
fi
-if (( (ADD || DELETE || EDITKEY || IMPORT || IMPORT_TRUSTDB || INIT || RECEIVE || RELOAD || UPDATEDB) && EUID != 0 )); then
+if (( (ADD || DELETE || EDITKEY || IMPORT || IMPORT_TRUSTDB || INIT || POPULATE || RECEIVE || UPDATEDB) && EUID != 0 )); then
error "$(gettext "%s needs to be run as root for this operation.")" "pacman-key"
exit 1
fi
@@ -387,7 +389,7 @@ GPG_PACMAN=(gpg --homedir ${PACMAN_KEYRING_DIR} --no-permission-warning)
# check only a single operation has been given
numopt=$(( ADD + DELETE + EDITKEY + EXPORT + FINGER + IMPORT + IMPORT_TRUSTDB +
- INIT + LISTKEYS + LISTSIGS + RECEIVE + RELOAD + UPDATEDB + VERIFY ))
+ INIT + LISTKEYS + LISTSIGS + POPULATE + RECEIVE + UPDATEDB + VERIFY ))
case $numopt in
0)
@@ -413,8 +415,8 @@ esac
(( INIT )) && initialize
(( LISTKEYS )) && "${GPG_PACMAN[@]}" --batch --list-keys "${KEYIDS[@]}"
(( LISTSIGS )) && "${GPG_PACMAN[@]}" --batch --list-sigs "${KEYIDS[@]}"
+(( POPULATE )) && populate_keyring
(( RECEIVE )) && receive_keys
-(( RELOAD )) && reload_keyring
(( UPDATEDB )) && "${GPG_PACMAN[@]}" --batch --check-trustdb
(( VERIFY )) && "${GPG_PACMAN[@]}" --verify $SIGNATURE
--
1.7.6
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