diff options
author | Jameson Graef Rollins <jrollins@finestructure.net> | 2009-01-31 17:30:11 -0500 |
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committer | Jameson Graef Rollins <jrollins@finestructure.net> | 2009-01-31 17:30:11 -0500 |
commit | b7e17887ac20bc5916d830f5282b07f4c0360c2a (patch) | |
tree | 339702d51a7865520d7eac5bc5b20576af327714 /src/monkeysphere-authentication | |
parent | 53fdf9b3e431d9f3538c1b2196276492bec2fc7e (diff) |
break out monkeysphere-{host,authentication} subcommands into seperate
scripts. MUCH MORE WORK NEEDED to get these working.
Diffstat (limited to 'src/monkeysphere-authentication')
-rwxr-xr-x | src/monkeysphere-authentication | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/src/monkeysphere-authentication b/src/monkeysphere-authentication index cac0e18..1763b03 100755 --- a/src/monkeysphere-authentication +++ b/src/monkeysphere-authentication @@ -134,357 +134,6 @@ check_host_keyring() { || failure "You don't appear to have a Monkeysphere host key on this server. Please run 'monkeysphere-server gen-key' first." } -diagnostics() { -# * check on the status and validity of the key and public certificates - local seckey - local keysfound - local curdate - local warnwindow - local warndate - local create - local expire - local uid - local fingerprint - local badhostkeys - local sshd_config - local problemsfound=0 - - # FIXME: what's the correct, cross-platform answer? - sshd_config=/etc/ssh/sshd_config - seckey=$(gpg_host --list-secret-keys --fingerprint --with-colons --fixed-list-mode) - keysfound=$(echo "$seckey" | grep -c ^sec:) - curdate=$(date +%s) - # warn when anything is 2 months away from expiration - warnwindow='2 months' - warndate=$(advance_date $warnwindow +%s) - - if ! id monkeysphere >/dev/null ; then - echo "! No monkeysphere user found! Please create a monkeysphere system user with bash as its shell." - problemsfound=$(($problemsfound+1)) - fi - - if ! [ -d "$SYSDATADIR" ] ; then - echo "! no $SYSDATADIR directory found. Please create it." - problemsfound=$(($problemsfound+1)) - fi - - echo "Checking host GPG key..." - if (( "$keysfound" < 1 )); then - echo "! No host key found." - echo " - Recommendation: run 'monkeysphere-server gen-key'" - problemsfound=$(($problemsfound+1)) - elif (( "$keysfound" > 1 )); then - echo "! More than one host key found?" - # FIXME: recommend a way to resolve this - problemsfound=$(($problemsfound+1)) - else - create=$(echo "$seckey" | grep ^sec: | cut -f6 -d:) - expire=$(echo "$seckey" | grep ^sec: | cut -f7 -d:) - fingerprint=$(echo "$seckey" | grep ^fpr: | head -n1 | cut -f10 -d:) - # check for key expiration: - if [ "$expire" ]; then - if (( "$expire" < "$curdate" )); then - echo "! Host key is expired." - echo " - Recommendation: extend lifetime of key with 'monkeysphere-server extend-key'" - problemsfound=$(($problemsfound+1)) - elif (( "$expire" < "$warndate" )); then - echo "! Host key expires in less than $warnwindow:" $(advance_date $(( $expire - $curdate )) seconds +%F) - echo " - Recommendation: extend lifetime of key with 'monkeysphere-server extend-key'" - problemsfound=$(($problemsfound+1)) - fi - fi - - # and weirdnesses: - if [ "$create" ] && (( "$create" > "$curdate" )); then - echo "! Host key was created in the future(?!). Is your clock correct?" - echo " - Recommendation: Check clock ($(date +%F_%T)); use NTP?" - problemsfound=$(($problemsfound+1)) - fi - - # check for UserID expiration: - echo "$seckey" | grep ^uid: | cut -d: -f6,7,10 | \ - while IFS=: read create expire uid ; do - # FIXME: should we be doing any checking on the form - # of the User ID? Should we be unmangling it somehow? - - if [ "$create" ] && (( "$create" > "$curdate" )); then - echo "! User ID '$uid' was created in the future(?!). Is your clock correct?" - echo " - Recommendation: Check clock ($(date +%F_%T)); use NTP?" - problemsfound=$(($problemsfound+1)) - fi - if [ "$expire" ] ; then - if (( "$expire" < "$curdate" )); then - echo "! User ID '$uid' is expired." - # FIXME: recommend a way to resolve this - problemsfound=$(($problemsfound+1)) - elif (( "$expire" < "$warndate" )); then - echo "! User ID '$uid' expires in less than $warnwindow:" $(advance_date $(( $expire - $curdate )) seconds +%F) - # FIXME: recommend a way to resolve this - problemsfound=$(($problemsfound+1)) - fi - fi - done - -# FIXME: verify that the host key is properly published to the -# keyservers (do this with the non-privileged user) - -# FIXME: check that there are valid, non-expired certifying signatures -# attached to the host key after fetching from the public keyserver -# (do this with the non-privileged user as well) - -# FIXME: propose adding a revoker to the host key if none exist (do we -# have a way to do that after key generation?) - - # Ensure that the ssh_host_rsa_key file is present and non-empty: - echo - echo "Checking host SSH key..." - if [ ! -s "${SYSDATADIR}/ssh_host_rsa_key" ] ; then - echo "! The host key as prepared for SSH (${SYSDATADIR}/ssh_host_rsa_key) is missing or empty." - problemsfound=$(($problemsfound+1)) - else - if [ $(ls -l "${SYSDATADIR}/ssh_host_rsa_key" | cut -f1 -d\ ) != '-rw-------' ] ; then - echo "! Permissions seem wrong for ${SYSDATADIR}/ssh_host_rsa_key -- should be 0600." - problemsfound=$(($problemsfound+1)) - fi - - # propose changes needed for sshd_config (if any) - if ! grep -q "^HostKey[[:space:]]\+${SYSDATADIR}/ssh_host_rsa_key$" "$sshd_config"; then - echo "! $sshd_config does not point to the monkeysphere host key (${SYSDATADIR}/ssh_host_rsa_key)." - echo " - Recommendation: add a line to $sshd_config: 'HostKey ${SYSDATADIR}/ssh_host_rsa_key'" - problemsfound=$(($problemsfound+1)) - fi - if badhostkeys=$(grep -i '^HostKey' "$sshd_config" | grep -v "^HostKey[[:space:]]\+${SYSDATADIR}/ssh_host_rsa_key$") ; then - echo "! $sshd_config refers to some non-monkeysphere host keys:" - echo "$badhostkeys" - echo " - Recommendation: remove the above HostKey lines from $sshd_config" - problemsfound=$(($problemsfound+1)) - fi - - # FIXME: test (with ssh-keyscan?) that the running ssh - # daemon is actually offering the monkeysphere host key. - - fi - fi - -# FIXME: look at the ownership/privileges of the various keyrings, -# directories housing them, etc (what should those values be? can -# we make them as minimal as possible?) - -# FIXME: look to see that the ownertrust rules are set properly on the -# authentication keyring - -# FIXME: make sure that at least one identity certifier exists - -# FIXME: look at the timestamps on the monkeysphere-generated -# authorized_keys files -- warn if they seem out-of-date. - -# FIXME: check for a cronjob that updates monkeysphere-generated -# authorized_keys? - - echo - echo "Checking for MonkeySphere-enabled public-key authentication for users ..." - # Ensure that User ID authentication is enabled: - if ! grep -q "^AuthorizedKeysFile[[:space:]]\+${SYSDATADIR}/authorized_keys/%u$" "$sshd_config"; then - echo "! $sshd_config does not point to monkeysphere authorized keys." - echo " - Recommendation: add a line to $sshd_config: 'AuthorizedKeysFile ${SYSDATADIR}/authorized_keys/%u'" - problemsfound=$(($problemsfound+1)) - fi - if badauthorizedkeys=$(grep -i '^AuthorizedKeysFile' "$sshd_config" | grep -v "^AuthorizedKeysFile[[:space:]]\+${SYSDATADIR}/authorized_keys/%u$") ; then - echo "! $sshd_config refers to non-monkeysphere authorized_keys files:" - echo "$badauthorizedkeys" - echo " - Recommendation: remove the above AuthorizedKeysFile lines from $sshd_config" - problemsfound=$(($problemsfound+1)) - fi - - if [ "$problemsfound" -gt 0 ]; then - echo "When the above $problemsfound issue"$(if [ "$problemsfound" -eq 1 ] ; then echo " is" ; else echo "s are" ; fi)" resolved, please re-run:" - echo " monkeysphere-server diagnostics" - else - echo "Everything seems to be in order!" - fi -} - -# retrieve key from web of trust, import it into the host keyring, and -# ltsign the key in the host keyring so that it may certify other keys -add_certifier() { - local domain - local trust - local depth - local keyID - local fingerprint - local ltsignCommand - local trustval - - # set default values for trust depth and domain - domain= - trust=full - depth=1 - - # get options - while true ; do - case "$1" in - -n|--domain) - domain="$2" - shift 2 - ;; - -t|--trust) - trust="$2" - shift 2 - ;; - -d|--depth) - depth="$2" - shift 2 - ;; - *) - if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then - failure "Unknown option '$1'. -Type '$PGRM help' for usage." - fi - break - ;; - esac - done - - keyID="$1" - if [ -z "$keyID" ] ; then - failure "You must specify the key ID of a key to add, or specify a file to read the key from." - fi - if [ -f "$keyID" ] ; then - echo "Reading key from file '$keyID':" - importinfo=$(gpg_authentication "--import" < "$keyID" 2>&1) || failure "could not read key from '$keyID'" - # FIXME: if this is tried when the key database is not - # up-to-date, i got these errors (using set -x): - -# ++ su -m monkeysphere -c '\''gpg --import'\'' -# Warning: using insecure memory! -# gpg: key D21739E9: public key "Daniel Kahn Gillmor <dkg@fifthhorseman.net>" imported -# gpg: Total number processed: 1 -# gpg: imported: 1 (RSA: 1) -# gpg: can'\''t create `/var/monkeysphere/gnupg-host/pubring.gpg.tmp'\'': Permission denied -# gpg: failed to rebuild keyring cache: Permission denied -# gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model -# gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u -# gpg: next trustdb check due at 2009-01-10' -# + failure 'could not read key from '\''/root/dkg.gpg'\''' -# + echo 'could not read key from '\''/root/dkg.gpg'\''' - - keyID=$(echo "$importinfo" | grep '^gpg: key ' | cut -f2 -d: | cut -f3 -d\ ) - if [ -z "$keyID" ] || [ $(echo "$keyID" | wc -l) -ne 1 ] ; then - failure "Expected there to be a single gpg key in the file." - fi - else - # get the key from the key server - gpg_authentication "--keyserver $KEYSERVER --recv-key '0x${keyID}!'" || failure "Could not receive a key with this ID from the '$KEYSERVER' keyserver." - fi - - export keyID - - - # get the full fingerprint of a key ID - fingerprint=$(gpg_authentication "--list-key --with-colons --with-fingerprint 0x${keyID}!" | \ - grep '^fpr:' | grep "$keyID" | cut -d: -f10) - - if [ -z "$fingerprint" ] ; then - failure "Key '$keyID' not found." - fi - - echo - echo "key found:" - gpg_authentication "--fingerprint 0x${fingerprint}!" - - echo "Are you sure you want to add the above key as a" - read -p "certifier of users on this system? (y/N) " OK; OK=${OK:-N} - if [ "${OK/y/Y}" != 'Y' ] ; then - failure "Identity certifier not added." - fi - - # export the key to the host keyring - gpg_authentication "--export 0x${fingerprint}!" | gpg_host --import - - if [ "$trust" = marginal ]; then - trustval=1 - elif [ "$trust" = full ]; then - trustval=2 - else - failure "Trust value requested ('$trust') was unclear (only 'marginal' or 'full' are supported)." - fi - - # ltsign command - # NOTE: *all* user IDs will be ltsigned - ltsignCommand=$(cat <<EOF -ltsign -y -$trustval -$depth -$domain -y -save -EOF - ) - - # ltsign the key - if echo "$ltsignCommand" | \ - gpg_host --quiet --command-fd 0 --edit-key "0x${fingerprint}!" ; then - - # update the trustdb for the authentication keyring - gpg_authentication "--check-trustdb" - - echo - echo "Identity certifier added." - else - failure "Problem adding identify certifier." - fi -} - -# delete a certifiers key from the host keyring -remove_certifier() { - local keyID - local fingerprint - - keyID="$1" - if [ -z "$keyID" ] ; then - failure "You must specify the key ID of a key to remove." - fi - - if gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-key 0x${keyID}!" ; then - read -p "Really remove above listed identity certifier? (y/N) " OK; OK=${OK:-N} - if [ "${OK/y/Y}" != 'Y' ] ; then - failure "Identity certifier not removed." - fi - else - failure - fi - - # delete the requested key - if gpg_authentication "--delete-key --batch --yes 0x${keyID}!" ; then - # delete key from host keyring as well - gpg_host --delete-key --batch --yes "0x${keyID}!" - - # update the trustdb for the authentication keyring - gpg_authentication "--check-trustdb" - - echo - echo "Identity certifier removed." - else - failure "Problem removing identity certifier." - fi -} - -# list the host certifiers -list_certifiers() { - local keys - local key - - # find trusted keys in authentication keychain - keys=$(gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-keys --with-colons --fingerprint" | \ - grep ^pub: | cut -d: -f2,5 | egrep '^(u|f):' | cut -d: -f2) - - # output keys - for key in $keys ; do - gpg_authentication "--no-options --list-options show-uid-validity --keyring ${GNUPGHOME_AUTHENTICATION}/pubring.gpg --list-key --fingerprint $key" - done -} - ######################################################################## # MAIN ######################################################################## |