[Buildroot] [Buildroot PATCH Selinux v10 04/11] linux-pam: selinux host dependencies

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Niranjan Reddy,

Again, missing commit log. The commit title is completely unclear, and
does not even seem to be related to the change being done. How adding a
host variant of the linux-pam package and using this host variant is
related to "selinux host dependencies" ?

On Tue, 16 Feb 2016 11:48:19 +0530, Niranjan Reddy wrote:

> +# Use the host-pam pam_conv1 app to create the pam.d files

So that's why linux-pam needs to depend on host-linux-pam. So the
addition of this dependency in PATCH 2 should in fact go in this patch.

> +define LINUX_PAM_CONFIG_FILE_TARGET_INSTALL
> +	if [ -d $(TARGET_DIR)/etc/pam.d/ ]; then \

Is this conditional really needed? Are there situations where linux-pam
will not install things in /etc/pam.d/ ?

> +		mv $(TARGET_DIR)/etc/pam.d/ $(TARGET_DIR)/etc/pam.d.orig/; \
> +	fi; \

; \ not needed here

> +	cd $(TARGET_DIR)/etc/ && cat $(@D)/conf/pam.conf | $(HOST_DIR)/usr/bin/pam_conv1; \

Ditto

> +	if [ -d $(TARGET_DIR)/etc/pam.d.orig ]; then \
> +		cp -a $(TARGET_DIR)/etc/pam.d/* $(TARGET_DIR)/etc/pam.d.orig/; \
> +		rm -rf $(TARGET_DIR)/etc/pam.d/; \
> +		mv $(TARGET_DIR)/etc/pam.d.orig/ $(TARGET_DIR)/etc/pam.d/; \
> +	fi;

; not needed

> +	$(INSTALL) -D -m 0644 package/linux-pam/system-auth.pamd $(TARGET_DIR)/etc/pam.d/system-auth
> +endef

linux-pam used to be packaged without this complicated dance. Can you
add some justification about why we're doing this complicated dance,
and what it brings?

> +
> +LINUX_PAM_POST_INSTALL_TARGET_HOOKS += LINUX_PAM_CONFIG_FILE_TARGET_INSTALL
>  LINUX_PAM_POST_INSTALL_TARGET_HOOKS += LINUX_PAM_INSTALL_CONFIG
>  
> +HOST_LINUX_PAM_DEPENDENCIES = host-flex host-pkgconf
> +
> +HOST_LINUX_PAM_CONF_OPTS = 
> +	--disable-rpath \
> +	--enable-read-both-confs \
> +	--disable-regenerate-docu \
> +	--disable-isadir \
> +	--disable-nis \
> +	--enable-securedir=/lib/security \
> +	--disable-prelude \
> +	--disable-cracklib \
> +	--disable-lckpwdf \
> +	--disable-db \
> +	--disable-selinux \
> +	--disable-audit \
> +
> +define HOST_LINUX_PAM_INSTALL_CMDS
> +	$(INSTALL) -D -m 755 $(@D)/conf/pam_conv1/pam_conv1 $(HOST_DIR)/usr/bin/

We need a full destination path when $(INSTALL) -D is used, so
$(HOST_DIR)/usr/bin/pam_conv1.

> +endef

One empty newline here please.

>  $(eval $(autotools-package))
> +$(eval $(host-autotools-package))

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com