From: Jameson Graef Rollins <jrollins@finestructure.net>
Date: Thu, 12 Feb 2009 23:19:35 +0000 (-0500)
Subject: Fix the ma/setup function:
X-Git-Tag: monkeysphere_0.23~105
X-Git-Url: https://codewiz.org/gitweb?p=monkeysphere.git;a=commitdiff_plain;h=f54abea9da2be063b0d0ed974f6130b303b2a1c7

Fix the ma/setup function:
- fix reference to MONKEYSPHERE_USER for GNUPGHOME_SPHERE
- break out core_fingerprint function
- export core key to sphere keyring (necessary)
- fix some logging (add more debug) and formatting
---

diff --git a/src/monkeysphere-authentication b/src/monkeysphere-authentication
index 6d2e72c..a33de1e 100755
--- a/src/monkeysphere-authentication
+++ b/src/monkeysphere-authentication
@@ -75,17 +75,12 @@ gpg_core() {
     GNUPGHOME="$GNUPGHOME_CORE"
     export GNUPGHOME
 
-    # 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 "$@"
 }
 
 # function to interact with the gpg sphere keyring
-# FIXME: this function requires basically accepts only a single
-# argument because of problems with quote expansion.  this needs to be
-# fixed/improved.
+# FIXME: this function requires only a single argument because of
+# problems with quote expansion.  this needs to be fixed/improved.
 gpg_sphere() {
     GNUPGHOME="$GNUPGHOME_SPHERE"
     export GNUPGHOME
@@ -93,8 +88,18 @@ gpg_sphere() {
     su_monkeysphere_user "gpg $@"
 }
 
+# load the core fingerprint into the fingerprint variable, using the
+# gpg host secret key
+core_fingerprint() {
+    log debug "determining core key fingerprint..."
+    gpg_core --quiet --list-secret-key \
+	--with-colons --fixed-list-mode --with-fingerprint \
+	| grep ^fpr: | cut -d: -f10
+}
+
 # export signatures from core to sphere
 gpg_core_sphere_sig_transfer() {
+    log debug "exporting core local sigs to sphere..."
     gpg_core --export-options export-local-sigs --export | \
 	gpg_sphere --import-options import-local-sigs --import
 }
diff --git a/src/share/ma/setup b/src/share/ma/setup
index 0cd92e0..5960ab4 100644
--- a/src/share/ma/setup
+++ b/src/share/ma/setup
@@ -23,6 +23,7 @@ setup() {
 
     # deliberately replace the config files via truncation
     # FIXME: should we be dumping to tmp files and then moving atomically?
+    log debug "write core gpg.conf..."
     cat >"${GNUPGHOME_CORE}"/gpg.conf <<EOF
 # Monkeysphere trust core GnuPG configuration
 # This file is maintained by the Monkeysphere software.
@@ -30,7 +31,8 @@ setup() {
 no-greeting
 list-options show-uid-validity
 EOF
-    
+
+    log debug "write sphere gpg.conf..."
     cat >"${GNUPGHOME_SPHERE}"/gpg.conf <<EOF
 # Monkeysphere trust sphere GnuPG configuration
 # This file is maintained by the Monkeysphere software.
@@ -42,23 +44,28 @@ EOF
 
     # make sure the monkeysphere user owns everything in the sphere
     # gnupghome
-    chown -R "$MONKEYPSHERE_USER" "${GNUPGHOME_SPHERE}"
-    chgrp -R "$MONKEYPSHERE_USER" "${GNUPGHOME_SPHERE}"
+    log debuf "fix sphere gnupg home ownership..."
+    chown -R "$MONKEYSPHERE_USER" "${GNUPGHOME_SPHERE}"
+    chgrp -R "$MONKEYSPHERE_USER" "${GNUPGHOME_SPHERE}"
 
     # get fingerprint of core key.  this should be empty on unconfigured systems.
-    local CORE_FPR=$(gpg_core --with-colons --fixed-list-mode --fingerprint --list-secret-key | grep ^fpr: | cut -f10 -d: )
+    local CORE_FPR=$(core_fingerprint)
+    log debug "core fingerprint: $CORE_FPR"
 
     if [ -z "$CORE_FPR" ] ; then
-	log info "Setting up Monkeysphere authentication trust core..."
+	log info "setting up Monkeysphere authentication trust core..."
 
 	local CORE_UID=$(printf "Monkeysphere authentication trust core UID (random string: %s)" $(head -c21 </dev/urandom | base64))
     
 	log debug "generating monkeysphere authentication trust core key ($CORE_KEYLENGTH bits)..."
-	PEM2OPENPGP_USAGE_FLAGS=certify PEM2OPENPGP_NEWKEY=$CORE_KEYLENGTH pem2openpgp "$CORE_UID" | gpg_core --import || failure "Could not import new key for Monkeysphere authentication trust core"
+	PEM2OPENPGP_USAGE_FLAGS=certify \
+	    PEM2OPENPGP_NEWKEY=$CORE_KEYLENGTH pem2openpgp "$CORE_UID" \
+	    | gpg_core --import \
+	    || failure "Could not import new key for Monkeysphere authentication trust core"
 
 	# get fingerprint of core key.  should definitely not be empty at this point
-	log debug "get core key fingerprint..."
-	CORE_FPR=$(gpg_core --with-colons --fixed-list-mode --fingerprint --list-secret-key | grep ^fpr: | cut -f10 -d: )
+	CORE_FPR=$(core_fingerprint)
+	log debug "core fingerprint: $CORE_FPR"
 	if [ -z "$CORE_FPR" ] ; then
 	    failure "Failed to create Monkeysphere authentication trust core!"
 	fi
@@ -67,12 +74,18 @@ EOF
 	log verbose "This system has already set up the Monkeysphere authentication trust core."
     fi
 
+    # export the core key to the sphere keyring
+    log debug "export core pub key to sphere keyring..."
+    gpg_core --export | gpg_sphere --import
 
     # ensure that the authentication sphere checker has absolute ownertrust on the expected key.
     log debug "set ultimate owner trust on core key in gpg_sphere..."
     printf "%s:6:\n" "$CORE_FPR" | gpg_sphere --import-ownertrust
-    local ORIG_TRUST
+    gpg_sphere --export-ownertrust | log debug
+
+    # check the owner trust
     log debug "check gpg_sphere owner trust set properly..."
+    local ORIG_TRUST
     if ORIG_TRUST=$(gpg_sphere --export-ownertrust | grep '^[^#]') ; then
 	if [ "${CORE_FPR}:6:" != "$ORIG_TRUST" ] ; then
 	    failure "Monkeysphere authentication trust sphere should explicitly trust the core.  It does not have proper ownertrust settings."
@@ -84,10 +97,10 @@ EOF
     # ensure that we're using the extended trust model (1), and that
     # our preferences are reasonable (i.e. 3 marginal OR 1 fully
     # trusted certifications are sufficient to grant full validity.
-    log debug "check trust level of core key..."
+    log debug "checking trust level of core key..."
     local TRUST_LEVEL=$(gpg_sphere --with-colons --fixed-list-mode --list-keys \
 	| head -n1 | grep "^tru:" | cut -d: -f3,6,7)
-    log debug "trust level: $TRUST_LEVEL"
+    log debug "sphere trust level of core: $TRUST_LEVEL"
     if [ "$TRUST_LEVEL" != '1:3:1' ] ; then
 	failure "monkeysphere-authentication does not have the expected trust model settings."
     fi