[Buildroot] [git commit] util-linux: add selinux support
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Wed Jan 25 10:05:20 UTC 2017
commit: https://git.buildroot.net/buildroot/commit/?id=373b7efdb308fcb7607cbef63ee4d2644b46136f
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
This patch adds optional libselinux support to the util-linux package,
and also tweaks the PAM files instealled by util-linux to work properly
in an SELinux context.
Like was done for linux-pam, the tweak is done by having the SELinux
related lines commented out in the original PAM file, and uncommented
when SELinux support is enabled.
Signed-off-by: Matthew Weber <matthew.weber at rockwellcollins.com>
Signed-off-by: Clayton Shotwell <clayton.shotwell at rockwellcollins.com>
Reviewed-by: Samuel Martin <s.martin49 at gmail.com>
Signed-off-by: Niranjan Reddy <niranjan.reddy at rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Tested-by: Bryce Ferguson <bryce.ferguson at rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
package/util-linux/su.pam | 2 ++
package/util-linux/util-linux.mk | 14 ++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/package/util-linux/su.pam b/package/util-linux/su.pam
index f000c39..84b1860 100644
--- a/package/util-linux/su.pam
+++ b/package/util-linux/su.pam
@@ -7,7 +7,9 @@ account required pam_unix.so
password required pam_unix.so nullok
+# session required pam_selinux.so close
session required pam_limits.so
session required pam_env.so
session required pam_unix.so
session optional pam_lastlog.so
+# session required pam_selinux.so open
diff --git a/package/util-linux/util-linux.mk b/package/util-linux/util-linux.mk
index 53a6d9b..84c4f0e 100644
--- a/package/util-linux/util-linux.mk
+++ b/package/util-linux/util-linux.mk
@@ -75,6 +75,19 @@ endif
UTIL_LINUX_CONF_ENV += LIBS="$(UTIL_LINUX_LIBS)"
UTIL_LINUX_MAKE_OPTS += LIBS="$(UTIL_LINUX_LIBS)"
+ifeq ($(BR2_PACKAGE_LIBSELINUX),y)
+UTIL_LINUX_DEPENDENCIES += libselinux
+UTIL_LINUX_CONF_OPTS += --with-selinux
+define UTIL_LINUX_SELINUX_PAMFILES_TWEAK
+ $(foreach f,su su-l,
+ $(SED) 's/^# \(.*pam_selinux.so.*\)$$/\1/' \
+ $(TARGET_DIR)/etc/pam.d/$(f)
+ )
+endef
+else
+UTIL_LINUX_CONF_OPTS += --without-selinux
+endif
+
# Used by cramfs utils
UTIL_LINUX_DEPENDENCIES += $(if $(BR2_PACKAGE_ZLIB),zlib)
@@ -192,6 +205,7 @@ define UTIL_LINUX_INSTALL_PAMFILES
$(TARGET_DIR)/etc/pam.d/su
$(INSTALL) -m 0644 package/util-linux/su.pam \
$(TARGET_DIR)/etc/pam.d/su-l
+ $(UTIL_LINUX_SELINUX_PAMFILES_TWEAK)
endef
endif
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