[Buildroot] [PATCH] package/sudo: new config to add sudo group and rule

[Stephan Henningsen <stephan@asklandd.dk>]

From: Stephan Henningsen <stephan+buildroot@asklandd.dk>

Signed-off-by: Stephan Henningsen <stephan+buildroot@asklandd.dk>
---
 package/sudo/Config.in | 15 +++++++++++++++
 package/sudo/sudo.mk   | 13 +++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/package/sudo/Config.in b/package/sudo/Config.in
index cbef15d67b..403d634ceb 100644
--- a/package/sudo/Config.in
+++ b/package/sudo/Config.in
@@ -9,3 +9,18 @@ config BR2_PACKAGE_SUDO
 	  but still allow people to get their work done.
 
 	  http://www.sudo.ws/sudo/
+
+
+if BR2_PACKAGE_SUDO
+
+config BR2_PACKAGE_SUDO_GROUP_AND_RULE
+	bool "add group 'sudo' and enable associated sudo rule"
+	select BR2_PACKAGE_SUDO_GROUP
+	help
+	  Creates a group named 'sudo', and enables the following rule
+	  in the /etc/sudoers configuration file that allows members of
+	  group 'sudo' to execute any command as root:
+
+	  %sudo ALL=(ALL) ALL
+
+endif
diff --git a/package/sudo/sudo.mk b/package/sudo/sudo.mk
index cf8b63b1db..5df39b193e 100644
--- a/package/sudo/sudo.mk
+++ b/package/sudo/sudo.mk
@@ -64,4 +64,17 @@ define SUDO_PERMISSIONS
 	/usr/bin/sudo f 4755 0 0 - - - - -
 endef
 
+ifeq ($(BR2_PACKAGE_SUDO_GROUP_AND_RULE),y)
+define SUDO_USERS
+    -               -1   sudo            -1   -             -            -         -
+endef
+
+define SUDO_ENABLE_SUDO_GROUP_RULE
+	$(SED) '/^# \%sudo\tALL=(ALL) ALL/s/^# //' $(TARGET_DIR)/etc/sudoers
+endef
+
+SUDO_POST_INSTALL_TARGET_HOOKS += SUDO_ENABLE_SUDO_GROUP_RULE
+
+endif
+
 $(eval $(autotools-package))
-- 
2.17.1