* Add /etc/network/if-up.d/openssh-server to restart sshd when new

  interfaces appear (LP: #103436).

4 files changed, 34 insertions, 0 deletions

diff --git a/debian/changelog b/debian/changelog
index 7a9dcc970..95a7c741b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -10,6 +10,8 @@ openssh (1:4.6p1-2) UNRELEASED; urgency=low
   * Document the SILENT loglevel in sftp-server(8), ssh_config(5), and
     sshd_config(5).
   * Add try-restart action to init script.
+  * Add /etc/network/if-up.d/openssh-server to restart sshd when new
+    interfaces appear (LP: #103436).
 
  -- Colin Watson <cjwatson@debian.org>  Wed, 13 Jun 2007 00:56:45 +0100
 
diff --git a/debian/openssh-server.dirs b/debian/openssh-server.dirs
index b28faf929..7cc4c0d84 100644
--- a/debian/openssh-server.dirs
+++ b/debian/openssh-server.dirs
@@ -1,5 +1,6 @@
 etc/init.d
 etc/default
+etc/network/if-up.d
 usr/lib/openssh
 usr/sbin
 usr/share/man/man5
diff --git a/debian/openssh-server.if-up b/debian/openssh-server.if-up
new file mode 100644
index 000000000..67f06c094
--- /dev/null
+++ b/debian/openssh-server.if-up
@@ -0,0 +1,30 @@
+#! /bin/sh
+# Reload the OpenSSH server when an interface comes up, to allow it to start
+# listening on new addresses.
+
+set -e
+
+# Don't bother to restart sshd when lo is configured.
+if [ "$IFACE" = lo ]; then
+        exit 0
+fi
+
+# Only run from ifup.
+if [ "$MODE" != start ]; then
+        exit 0
+fi
+
+# OpenSSH only cares about inet and inet6. Get thee gone, strange people
+# still using ipx.
+if [ "$ADDRFAM" != inet ] && [ "$ADDRFAM" != inet6 ]; then
+        exit 0
+fi
+
+# Is /usr mounted?
+if [ ! -e /usr/sbin/sshd ]; then
+        exit 0
+fi
+
+/etc/init.d/ssh reload >/dev/null 2>&1
+
+exit 0
diff --git a/debian/rules b/debian/rules
index 6e335cf6e..71e291b7a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -171,6 +171,7 @@ install: build
 
         install -o root -g root debian/openssh-server.init debian/openssh-server/etc/init.d/ssh
         install -o root -g root -m 644 debian/openssh-server.default debian/openssh-server/etc/default/ssh
+        install -o root -g root debian/openssh-server.if-up debian/openssh-server/etc/network/if-up.d/openssh-server
 
         install -m 755 build-udeb/ssh debian/openssh-client-udeb/usr/bin/ssh
         install -m 755 build-udeb/scp debian/openssh-client-udeb/usr/bin/scp