Switch to new unified layout for Upstart jobs as documented in

https://wiki.ubuntu.com/UpstartCompatibleInitScripts: the init script
checks for a running Upstart, and we now let dh_installinit handle most
of the heavy lifting in maintainer scripts.  Ubuntu users should be
essentially unaffected except that sshd may no longer start
automatically in chroots if the running Upstart predates 0.9.0; but the
main goal is simply not to break when openssh-server is installed in a
chroot.

1 files changed, 61 insertions, 0 deletions

diff --git a/debian/ssh-krb5.postinst b/debian/ssh-krb5.postinst
new file mode 100644
index 000000000..f799accfe
--- /dev/null
+++ b/debian/ssh-krb5.postinst
@@ -0,0 +1,61 @@
+#!/bin/sh
+
+set -e
+
+action="$1"
+oldversion="$2"
+
+if [ "$action" = configure ] ; then
+    # Make sure that GSSAPI is enabled.  If there is no uncommented GSSAPI
+    # configuration, uncomment any commented-out configuration if present
+    # (this will catch the case of a fresh install of openssh-server).
+    # Otherwise, add configuration turning on GSSAPIAuthentication and
+    # GSSAPIKeyExchange.
+    #
+    # If there is some configuration, we may be upgrading from ssh-krb5.  It
+    # enabled GSSAPIKeyExchange without any configuration option.  Therefore,
+    # if it isn't explicitly set, always enable it for compatible behavior
+    # with ssh-krb5.
+    if dpkg --compare-versions "$oldversion" ge 1:4.3p2-9; then
+        :
+    else
+        changed=
+        if grep -qi '^[         ]*GSSAPI' /etc/ssh/sshd_config ; then
+            if grep -qi '^[     ]*GSSAPIKeyExchange' /etc/ssh/sshd_config ; then
+                :
+            else
+                changed=true
+                cat >> /etc/ssh/sshd_config <<EOF
+
+# GSSAPI key exchange (added by ssh-krb5 transitional package)
+GSSAPIKeyExchange yes
+EOF
+            fi
+        else
+            changed=true
+            if grep -qi '^#GSSAPI' /etc/ssh/sshd_config ; then
+                perl -pe 's/^\#(GSSAPI(Authentication|KeyExchange))\b.*/$1 yes/i' \
+                    < /etc/ssh/sshd_config > /etc/ssh/sshd_config.dpkg-new
+                chown --reference /etc/ssh/sshd_config \
+                    /etc/ssh/sshd_config.dpkg-new
+                chmod --reference /etc/ssh/sshd_config \
+                    /etc/ssh/sshd_config.dpkg-new
+                mv /etc/ssh/sshd_config.dpkg-new /etc/ssh/sshd_config
+            else
+                cat >> /etc/ssh/sshd_config <<EOF
+
+# GSSAPI authentication (added by ssh-krb5 transitional package)
+GSSAPIAuthentication yes
+GSSAPIKeyExchange yes
+EOF
+            fi
+        fi
+        if [ -n "$changed" ]; then
+            invoke-rc.d ssh restart
+        fi
+    fi
+fi
+
+#DEBHELPER#
+
+exit 0