Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  selinux: Fix an uninitialized variable BUG/panic in selinux_secattr_to_sid()
  selinux: use default proc sid on symlinks
  file capabilities: uninline cap_safe_nice
  Update selinux info in MAINTAINERS and Kconfig help text
  SELinux: add gitignore file for mdp script
  SELinux: add boundary support and thread context assignment
  securityfs: do not depend on CONFIG_SECURITY
  selinux: add support for installing a dummy policy (v2)
  security: add/fix security kernel-doc
  selinux: Unify for- and while-loop style
  selinux: conditional expression type validation was off-by-one
  smack: limit privilege by label
  SELinux: Fix a potentially uninitialised variable in SELinux hooks
  SELinux: trivial, remove unneeded local variable
  SELinux: Trivial minor fixes that change C null character style
  make selinux_write_opts() static

Documentation/DocBook/kernel-api.tmpl

@@ -283,6 +283,7 @@ X!Earch/x86/kernel/mca_32.c
   <chapter id="security">
      <title>Security Framework</title>
 !Isecurity/security.c
+!Esecurity/inode.c
   </chapter>
 
   <chapter id="audit">

Documentation/SELinux.txt

@@ -0,0 +1,27 @@
+If you want to use SELinux, chances are you will want
+to use the distro-provided policies, or install the
+latest reference policy release from
+	http://oss.tresys.com/projects/refpolicy
+
+However, if you want to install a dummy policy for
+testing, you can do using 'mdp' provided under
+scripts/selinux.  Note that this requires the selinux
+userspace to be installed - in particular you will
+need checkpolicy to compile a kernel, and setfiles and
+fixfiles to label the filesystem.
+
+	1. Compile the kernel with selinux enabled.
+	2. Type 'make' to compile mdp.
+	3. Make sure that you are not running with
+	   SELinux enabled and a real policy.  If
+	   you are, reboot with selinux disabled
+	   before continuing.
+	4. Run install_policy.sh:
+		cd scripts/selinux
+		sh install_policy.sh
+
+Step 4 will create a new dummy policy valid for your
+kernel, with a single selinux user, role, and type.
+It will compile the policy, will set your SELINUXTYPE to
+dummy in /etc/selinux/config, install the compiled policy
+as 'dummy', and relabel your filesystem.

MAINTAINERS

@@ -3649,8 +3649,9 @@ M:	jmorris@namei.org
 P:	Eric Paris
 M:	eparis@parisplace.org
 L:	linux-kernel@vger.kernel.org (kernel issues)
-L:	selinux@tycho.nsa.gov (subscribers-only, general discussion)
-W:	http://www.nsa.gov/selinux
+L: 	selinux@tycho.nsa.gov (subscribers-only, general discussion)
+W:	http://selinuxproject.org
+T:	git kernel.org:pub/scm/linux/kernel/git/jmorris/security-testing-2.6.git
 S:	Supported
 
 SENSABLE PHANTOM

drivers/char/tpm/Kconfig

@@ -6,6 +6,7 @@ menuconfig TCG_TPM
 	tristate "TPM Hardware Support"
 	depends on HAS_IOMEM
 	depends on EXPERIMENTAL
+	select SECURITYFS
 	---help---
 	  If you have a TPM security chip in your system, which
 	  implements the Trusted Computing Group's specification,

include/linux/security.h

@@ -1560,11 +1560,6 @@ struct security_operations {
 extern int security_init(void);
 extern int security_module_enable(struct security_operations *ops);
 extern int register_security(struct security_operations *ops);
-extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
-					     struct dentry *parent, void *data,
-					     const struct file_operations *fops);
-extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
-extern void securityfs_remove(struct dentry *dentry);
 
 /* Security operations */
 int security_ptrace_may_access(struct task_struct *child, unsigned int mode);
@@ -2424,25 +2419,6 @@ static inline int security_netlink_recv(struct sk_buff *skb, int cap)
 	return cap_netlink_recv(skb, cap);
 }
 
-static inline struct dentry *securityfs_create_dir(const char *name,
-					struct dentry *parent)
-{
-	return ERR_PTR(-ENODEV);
-}
-
-static inline struct dentry *securityfs_create_file(const char *name,
-						mode_t mode,
-						struct dentry *parent,
-						void *data,
-						const struct file_operations *fops)
-{
-	return ERR_PTR(-ENODEV);
-}
-
-static inline void securityfs_remove(struct dentry *dentry)
-{
-}
-
 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 {
 	return -EOPNOTSUPP;
@@ -2806,5 +2782,35 @@ static inline void security_audit_rule_free(void *lsmrule)
 #endif /* CONFIG_SECURITY */
 #endif /* CONFIG_AUDIT */
 
+#ifdef CONFIG_SECURITYFS
+
+extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
+					     struct dentry *parent, void *data,
+					     const struct file_operations *fops);
+extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
+extern void securityfs_remove(struct dentry *dentry);
+
+#else /* CONFIG_SECURITYFS */
+
+static inline struct dentry *securityfs_create_dir(const char *name,
+						   struct dentry *parent)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline struct dentry *securityfs_create_file(const char *name,
+						    mode_t mode,
+						    struct dentry *parent,
+						    void *data,
+						    const struct file_operations *fops)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void securityfs_remove(struct dentry *dentry)
+{}
+
+#endif
+
 #endif /* ! __LINUX_SECURITY_H */
 

scripts/Makefile

@@ -20,6 +20,7 @@ hostprogs-y += unifdef
 
 subdir-$(CONFIG_MODVERSIONS) += genksyms
 subdir-y                     += mod
+subdir-$(CONFIG_SECURITY_SELINUX) += selinux
 
 # Let clean descend into subdirs
-subdir-	+= basic kconfig package
+subdir-	+= basic kconfig package selinux

scripts/selinux/Makefile

@@ -0,0 +1,2 @@
+subdir-y := mdp
+subdir-	+= mdp

scripts/selinux/README

@@ -0,0 +1,2 @@
+Please see Documentation/SELinux.txt for information on
+installing a dummy SELinux policy.

scripts/selinux/install_policy.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+if [ `id -u` -ne 0 ]; then
+	echo "$0: must be root to install the selinux policy"
+	exit 1
+fi
+SF=`which setfiles`
+if [ $? -eq 1 ]; then
+	if [ -f /sbin/setfiles ]; then
+		SF="/usr/setfiles"
+	else
+		echo "no selinux tools installed: setfiles"
+		exit 1
+	fi
+fi
+
+cd mdp
+
+CP=`which checkpolicy`
+VERS=`$CP -V | awk '{print $1}'`
+
+./mdp policy.conf file_contexts
+$CP -o policy.$VERS policy.conf
+
+mkdir -p /etc/selinux/dummy/policy
+mkdir -p /etc/selinux/dummy/contexts/files
+
+cp file_contexts /etc/selinux/dummy/contexts/files
+cp dbus_contexts /etc/selinux/dummy/contexts
+cp policy.$VERS /etc/selinux/dummy/policy
+FC_FILE=/etc/selinux/dummy/contexts/files/file_contexts
+
+if [ ! -d /etc/selinux ]; then
+	mkdir -p /etc/selinux
+fi
+if [ ! -f /etc/selinux/config ]; then
+	cat > /etc/selinux/config << EOF
+SELINUX=enforcing
+SELINUXTYPE=dummy
+EOF
+else
+	TYPE=`cat /etc/selinux/config | grep "^SELINUXTYPE" | tail -1 | awk -F= '{ print $2 '}`
+	if [ "eq$TYPE" != "eqdummy" ]; then
+		selinuxenabled
+		if [ $? -eq 0 ]; then
+			echo "SELinux already enabled with a non-dummy policy."
+			echo "Exiting.  Please install policy by hand if that"
+			echo "is what you REALLY want."
+			exit 1
+		fi
+		mv /etc/selinux/config /etc/selinux/config.mdpbak
+		grep -v "^SELINUXTYPE" /etc/selinux/config.mdpbak >> /etc/selinux/config
+		echo "SELINUXTYPE=dummy" >> /etc/selinux/config
+	fi
+fi
+
+cd /etc/selinux/dummy/contexts/files
+$SF file_contexts /
+
+mounts=`cat /proc/$$/mounts | egrep "ext2|ext3|xfs|jfs|ext4|ext4dev|gfs2" | awk '{ print $2 '}`
+$SF file_contexts $mounts
+
+
+dodev=`cat /proc/$$/mounts | grep "/dev "`
+if [ "eq$dodev" != "eq" ]; then
+	mount --move /dev /mnt
+	$SF file_contexts /dev
+	mount --move /mnt /dev
+fi
+

scripts/selinux/mdp/.gitignore

@@ -0,0 +1,2 @@
+# Generated file
+mdp

scripts/selinux/mdp/Makefile

@@ -0,0 +1,5 @@
+hostprogs-y	:= mdp
+HOST_EXTRACFLAGS += -Isecurity/selinux/include
+
+always		:= $(hostprogs-y)
+clean-files	:= $(hostprogs-y) policy.* file_contexts

scripts/selinux/mdp/dbus_contexts

@@ -0,0 +1,6 @@
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+  <selinux>
+  </selinux>
+</busconfig>