@@ -158,6 +158,7 @@ if grep ^BR2_TOOLCHAIN_BUILDROOT=y $CONFIG_FILE > /dev/null && \
exit 1 ;
fi
fi
+
if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then
for prog in javac jar; do
if ! which $prog > /dev/null ; then
@@ -166,3 +167,11 @@ if grep -q ^BR2_PACKAGE_CLASSPATH=y $CONFIG_FILE ; then
fi
done
fi
+
+if grep -E '^BR2_TARGET_GENERIC_ROOT_PASSWD=".+"$' $CONFIG_FILE > /dev/null 2>&1; then
+ if ! which mkpasswd > /dev/null 2>&1; then
+ /bin/echo -e "\nYou need the 'mkpasswd' utility to set the root password\n"
+ /bin/echo -e "(in Debian/ubuntu, 'mkpasswd' provided by the whois package)\n"
+ exit 1
+ fi
+fi
@@ -12,6 +12,27 @@ config BR2_TARGET_GENERIC_ISSUE
help
Select system banner (/etc/issue) to be displayed at login.
+config BR2_TARGET_GENERIC_ROOT_PASSWD
+ string "root password"
+ default ""
+ help
+ Set the initial root password (in clear). It will be md5-encrypted.
+
+ If set to empty (the default), then no root password will be set,
+ and root will need no password to log in.
+
+ WARNING! WARNING!
+ Although pretty strong, MD5 is now an old hash function, and
+ suffers from som weaknesses, which makes it susceptible to attacks.
+ It is showing its age, so this root password should not be trusted
+ to properly secure any product that can be shipped to the wide,
+ hostile world.
+
+ WARNING! WARNING!
+ The password appears in clear in the .config file, and may appear
+ in the build log! Avoid using a valuable password if either the
+ .config file or the build log may be distributed!
+
choice
prompt "/dev management"
default BR2_ROOTFS_DEVICE_CREATION_STATIC
@@ -1,5 +1,6 @@
TARGET_GENERIC_HOSTNAME:=$(call qstrip,$(BR2_TARGET_GENERIC_HOSTNAME))
TARGET_GENERIC_ISSUE:=$(call qstrip,$(BR2_TARGET_GENERIC_ISSUE))
+TARGET_GENERIC_ROOT_PASSWD:=$(call qstrip,$(BR2_TARGET_GENERIC_ROOT_PASSWD))
TARGET_GENERIC_GETTY:=$(call qstrip,$(BR2_TARGET_GENERIC_GETTY_PORT))
TARGET_GENERIC_GETTY_BAUDRATE:=$(call qstrip,$(BR2_TARGET_GENERIC_GETTY_BAUDRATE))
TARGET_GENERIC_GETTY_TERM:=$(call qstrip,$(BR2_TARGET_GENERIC_GETTY_TERM))
@@ -14,6 +15,13 @@ target-generic-issue:
mkdir -p $(TARGET_DIR)/etc
echo "$(TARGET_GENERIC_ISSUE)" > $(TARGET_DIR)/etc/issue
+target-no-root-passwd:
+ $(SED) "s/^root:[^:]*:/root::/" $(TARGET_DIR)/etc/shadow
+
+target-root-passwd:
+ root_passwd="$$( mkpasswd -m md5 "$(TARGET_GENERIC_ROOT_PASSWD)" )"; \
+ $(SED) "s,^root::,root:$${root_passwd}:," $(TARGET_DIR)/etc/shadow
+
target-generic-getty-busybox:
$(SED) '/# GENERIC_SERIAL$$/s~^.*#~$(TARGET_GENERIC_GETTY)::respawn:/sbin/getty -L $(TARGET_GENERIC_GETTY) $(TARGET_GENERIC_GETTY_BAUDRATE) $(TARGET_GENERIC_GETTY_TERM) #~' \
$(TARGET_DIR)/etc/inittab
@@ -40,6 +48,12 @@ ifneq ($(TARGET_GENERIC_ISSUE),)
TARGETS += target-generic-issue
endif
+ifneq ($(TARGET_GENERIC_ROOT_PASSWD),)
+TARGETS += target-root-passwd
+else
+TARGETS += target-no-root-passwd
+endif
+
ifeq ($(BR2_ROOTFS_SKELETON_DEFAULT),y)
ifeq ($(BR2_PACKAGE_SYSVINIT),y)
TARGETS += target-generic-getty-sysvinit
Add an option in the menuconfig to specify a root password. If set to empty, no root password is created; otherwise, the password is encrypted using MD5 (MD5 is not the default for crypt(3), DES-56 is, but MD5 is widely available, not-so-strong, but not-so-weak either). Add a check for 'mkpasswd' as a new dependency. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> --- Switched to using MD5 as per Arnout's suggestion: http://lists.busybox.net/pipermail/buildroot/2012-September/058712.html --- support/dependencies/dependencies.sh | 9 +++++++++ system/Config.in | 21 +++++++++++++++++++++ system/system.mk | 14 ++++++++++++++ 3 files changed, 44 insertions(+), 0 deletions(-)