[Buildroot] [PATCH 1/2] linux-pam: adjust login pam file for SELinux
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Tue Dec 6 20:27:03 UTC 2016
When SELinux support is enabled, the login pam file installed by
linux-pam should be adjusted to use the pam_selinux.so module.
To achieve this in a reasonably simple manner, we introduce the SELinux
related lines in login.pam as comments, and if SELinux support is
enabled, turn those commented lines into real lines.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
package/linux-pam/linux-pam.mk | 5 +++++
package/linux-pam/login.pam | 2 ++
2 files changed, 7 insertions(+)
diff --git a/package/linux-pam/linux-pam.mk b/package/linux-pam/linux-pam.mk
index 6ce3839..c8ba30f 100644
--- a/package/linux-pam/linux-pam.mk
+++ b/package/linux-pam/linux-pam.mk
@@ -29,6 +29,10 @@ endif
ifeq ($(BR2_PACKAGE_LIBSELINUX),y)
LINUX_PAM_CONF_OPTS += --enable-selinux
LINUX_PAM_DEPENDENCIES += libselinux
+define LINUX_PAM_SELINUX_PAMFILE_TWEAK
+ $(SED) 's/^# \(.*pam_selinux.so.*\)$$/\1/' \
+ $(TARGET_DIR)/etc/pam.d/login
+endef
else
LINUX_PAM_CONF_OPTS += --disable-selinux
endif
@@ -46,6 +50,7 @@ define LINUX_PAM_INSTALL_CONFIG
$(TARGET_DIR)/etc/pam.d/login
$(INSTALL) -m 0644 -D package/linux-pam/other.pam \
$(TARGET_DIR)/etc/pam.d/other
+ $(LINUX_PAM_SELINUX_PAMFILE_TWEAK)
endef
LINUX_PAM_POST_INSTALL_TARGET_HOOKS += LINUX_PAM_INSTALL_CONFIG
diff --git a/package/linux-pam/login.pam b/package/linux-pam/login.pam
index 01f5632..5df7db6 100644
--- a/package/linux-pam/login.pam
+++ b/package/linux-pam/login.pam
@@ -4,7 +4,9 @@ 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
--
2.7.4
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