AppArmor: Enable configuring and building of the AppArmor security module

Kconfig and Makefiles to enable configuration and building of AppArmor.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>

3 files changed, 60 insertions, 0 deletions

diff --git a/security/apparmor/.gitignore b/security/apparmor/.gitignore
new file mode 100644
index 000000000000..0a0a99f3b083
--- /dev/null
+++ b/security/apparmor/.gitignore
@@ -0,0 +1,5 @@
+#
+# Generated include files
+#
+af_names.h
+capability_names.h
diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig
new file mode 100644
index 000000000000..72555b9ca7d6
--- /dev/null
+++ b/security/apparmor/Kconfig
@@ -0,0 +1,31 @@
+config SECURITY_APPARMOR
+        bool "AppArmor support"
+        depends on SECURITY
+        select AUDIT
+        select SECURITY_PATH
+        select SECURITYFS
+        select SECURITY_NETWORK
+        default n
+        help
+          This enables the AppArmor security module.
+          Required userspace tools (if they are not included in your
+          distribution) and further information may be found at
+          http://apparmor.wiki.kernel.org
+
+          If you are unsure how to answer this question, answer N.
+
+config SECURITY_APPARMOR_BOOTPARAM_VALUE
+        int "AppArmor boot parameter default value"
+        depends on SECURITY_APPARMOR
+        range 0 1
+        default 1
+        help
+          This option sets the default value for the kernel parameter
+          'apparmor', which allows AppArmor to be enabled or disabled
+          at boot.  If this option is set to 0 (zero), the AppArmor
+          kernel parameter will default to 0, disabling AppArmor at
+          boot.  If this option is set to 1 (one), the AppArmor
+          kernel parameter will default to 1, enabling AppArmor at
+          boot.
+
+          If you are unsure how to answer this question, answer 1.
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
new file mode 100644
index 000000000000..f204869399ea
--- /dev/null
+++ b/security/apparmor/Makefile
@@ -0,0 +1,24 @@
+# Makefile for AppArmor Linux Security Module
+#
+obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
+
+apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
+              path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
+              resource.o sid.o file.o
+
+clean-files: capability_names.h af_names.h
+
+quiet_cmd_make-caps = GEN     $@
+cmd_make-caps = echo "static const char *capability_names[] = {" > $@ ; sed -n -e "/CAP_FS_MASK/d" -e "s/^\#define[ \\t]\\+CAP_\\([A-Z0-9_]\\+\\)[ \\t]\\+\\([0-9]\\+\\)\$$/[\\2]  = \"\\1\",/p" $< | tr A-Z a-z >> $@ ; echo "};" >> $@
+
+quiet_cmd_make-rlim = GEN     $@
+cmd_make-rlim = echo "static const char *rlim_names[] = {" > $@ ; sed -n --e "/AF_MAX/d" -e "s/^\# \\?define[ \\t]\\+RLIMIT_\\([A-Z0-9_]\\+\\)[ \\t]\\+\\([0-9]\\+\\)\\(.*\\)\$$/[\\2]  = \"\\1\",/p" $< | tr A-Z a-z >> $@ ; echo "};" >> $@ ; echo "static const int rlim_map[] = {" >> $@ ; sed -n -e "/AF_MAX/d" -e "s/^\# \\?define[ \\t]\\+\\(RLIMIT_[A-Z0-9_]\\+\\)[ \\t]\\+\\([0-9]\\+\\)\\(.*\\)\$$/\\1,/p" $< >> $@ ; echo "};" >> $@
+
+$(obj)/capability.o : $(obj)/capability_names.h
+$(obj)/resource.o : $(obj)/rlim_names.h
+$(obj)/capability_names.h : $(srctree)/include/linux/capability.h
+        $(call cmd,make-caps)
+$(obj)/af_names.h : $(srctree)/include/linux/socket.h
+        $(call cmd,make-af)
+$(obj)/rlim_names.h : $(srctree)/include/asm-generic/resource.h
+        $(call cmd,make-rlim)