base-files: prime root password with "x" to notify programs that there is a shadow record, fix /bin/login.sh password detection accordingly. Solves broken key based dropbear login with empty password after r28935.

SVN-Revision: 29130

package/base-files/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=93
+PKG_RELEASE:=94
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
 PKG_BUILD_DEPENDS:=opkg/host

package/base-files/files/bin/login.sh

@@ -1,7 +1,10 @@
 #!/bin/sh
 # Copyright (C) 2006-2011 OpenWrt.org
 
-if grep -qs '^root:[^!:]' /etc/passwd /etc/shadow && [ -z "$FAILSAFE" ]; then
+if ( ! grep -qs '^root::' /etc/shadow || \
+     ! grep -qs '^root:[!x]\?:' /etc/passwd ) && \
+   [ -z "$FAILSAFE" ]
+then
 	echo "Login failed."
 	exit 0
 else

package/base-files/files/etc/passwd

@@ -1,4 +1,4 @@
-root::0:0:root:/root:/bin/ash
+root:x:0:0:root:/root:/bin/ash
 daemon:*:1:1:daemon:/var:/bin/false
 ftp:*:55:55:ftp:/home/ftp:/bin/false
 network:*:101:101:network:/var:/bin/false