[Buildroot] [git commit branch/next] package/dropbear: Fix symlink only if pointing to the right directory
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Thu Jul 30 21:36:02 UTC 2015
commit: http://git.buildroot.net/buildroot/commit/?id=6dc5c7ffea3c309e3402e6c1e4cab42b8b44f421
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/next
This commit ensures that the /etc/dropbear symlink won't be removed if
it points elsewhere than /var/run/dropbear.
[Thomas:
- fix indentation / too long lines as suggested by Yann E. Morin.]
Signed-off-by: Paul Cercueil <paul at crapouillou.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
package/dropbear/S50dropbear | 6 ++++--
package/dropbear/dropbear.service | 5 +++--
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/package/dropbear/S50dropbear b/package/dropbear/S50dropbear
index af50ccf..8938789 100644
--- a/package/dropbear/S50dropbear
+++ b/package/dropbear/S50dropbear
@@ -12,12 +12,14 @@ start() {
echo -n "Starting dropbear sshd: "
umask 077
- # If /etc/dropbear is not a directory, and
+ # If /etc/dropbear is a symlink to /var/run/dropbear, and
# - the filesystem is RO (i.e. we can not rm the symlink),
# create the directory pointed to by the symlink.
# - the filesystem is RW (i.e. we can rm the symlink),
# replace the symlink with an actual directory
- if ! [ -d /etc/dropbear ]; then
+ if [ -L /etc/dropbear \
+ -a "$(readlink -f /etc/dropbear)" = "/var/run/dropbear" ]
+ then
if rm -f /etc/dropbear; then
mkdir -p /etc/dropbear
else
diff --git a/package/dropbear/dropbear.service b/package/dropbear/dropbear.service
index 0e2cf54..52c7702 100644
--- a/package/dropbear/dropbear.service
+++ b/package/dropbear/dropbear.service
@@ -3,13 +3,14 @@ Description=Dropbear SSH daemon
After=syslog.target network.target auditd.service
[Service]
-# If /etc/dropbear is not a directory, and
+# If /etc/dropbear is a symlink to /var/run/dropbear, and
# - the filesystem is RO (i.e. we can not rm the symlink),
# create the directory pointed to by the symlink.
# - the filesystem is RW (i.e. we can rm the symlink),
# replace the symlink with an actual directory
ExecStartPre=/bin/sh -c '\
-if ! [ -d /etc/dropbear ]; then \
+if [ -L /etc/dropbear \
+ -a "$(readlink -f /etc/dropbear)" = "/var/run/dropbear" ]; then \
if rm -f /etc/dropbear; then \
mkdir -p /etc/dropbear; \
else \
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