security: Convert LSM into a static interface

Convert LSM into a static interface, as the ability to unload a security
module is not required by in-tree users and potentially complicates the
overall security architecture.

Needlessly exported LSM symbols have been unexported, to help reduce API
abuse.

Parameters for the capability and root_plug modules are now specified
at boot.

The SECURITY_FRAMEWORK_VERSION macro has also been removed.

In a nutshell, there is no safe way to unload an LSM.  The modular interface
is thus unecessary and broken infrastructure.  It is used only by out-of-tree
modules, which are often binary-only, illegal, abusive of the API and
dangerous, e.g.  silently re-vectoring SELinux.

[akpm@linux-foundation.org: cleanups]
[akpm@linux-foundation.org: USB Kconfig fix]
[randy.dunlap@oracle.com: fix LSM kernel-doc]
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Acked-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Documentation/DocBook/kernel-api.tmpl

@@ -340,7 +340,7 @@ X!Earch/x86/kernel/mca_32.c
 
   <chapter id="security">
      <title>Security Framework</title>
-!Esecurity/security.c
+!Isecurity/security.c
   </chapter>
 
   <chapter id="audit">

Documentation/kernel-parameters.txt

@@ -75,10 +75,12 @@ parameter is applicable:
 	PPT	Parallel port support is enabled.
 	PS2	Appropriate PS/2 support is enabled.
 	RAM	RAM disk support is enabled.
+	ROOTPLUG The example Root Plug LSM is enabled.
 	S390	S390 architecture is enabled.
 	SCSI	Appropriate SCSI support is enabled.
 			A lot of drivers has their options described inside of
 			Documentation/scsi/.
+	SECURITY Different security models are enabled.
 	SELINUX SELinux support is enabled.
 	SERIAL	Serial support is enabled.
 	SH	SuperH architecture is enabled.
@@ -373,6 +375,12 @@ and is between 256 and 4096 characters. It is defined in the file
 			possible to determine what the correct size should be.
 			This option provides an override for these situations.
 
+	capability.disable=
+			[SECURITY] Disable capabilities.  This would normally
+			be used only if an alternative security model is to be
+			configured.  Potentially dangerous and should only be
+			used if you are entirely sure of the consequences.
+
 	chandev=	[HW,NET] Generic channel device initialisation
 
 	checkreqprot	[SELINUX] Set initial checkreqprot flag value.
@@ -1539,6 +1547,15 @@ and is between 256 and 4096 characters. It is defined in the file
 			Useful for devices that are detected asynchronously
 			(e.g. USB and MMC devices).
 
+	root_plug.vendor_id=
+			[ROOTPLUG] Override the default vendor ID
+
+	root_plug.product_id=
+			[ROOTPLUG] Override the default product ID
+
+	root_plug.debug=
+			[ROOTPLUG] Enable debugging output
+
 	rw		[KNL] Mount root device read-write on boot
 
 	S		[KNL] Run init in single mode

security/Kconfig

@@ -74,15 +74,15 @@ config SECURITY_NETWORK_XFRM
 	  If you are unsure how to answer this question, answer N.
 
 config SECURITY_CAPABILITIES
-	tristate "Default Linux Capabilities"
+	bool "Default Linux Capabilities"
 	depends on SECURITY
 	help
 	  This enables the "default" Linux capabilities functionality.
 	  If you are unsure how to answer this question, answer Y.
 
 config SECURITY_ROOTPLUG
-	tristate "Root Plug Support"
-	depends on USB && SECURITY
+	bool "Root Plug Support"
+	depends on USB=y && SECURITY
 	help
 	  This is a sample LSM module that should only be used as such.
 	  It prevents any programs running with egid == 0 if a specific

security/capability.c

@@ -8,7 +8,6 @@
  *
  */
 
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/security.h>
@@ -52,7 +51,6 @@ static int secondary;
 
 static int capability_disable;
 module_param_named(disable, capability_disable, int, 0);
-MODULE_PARM_DESC(disable, "To disable capabilities module set disable = 1");
 
 static int __init capability_init (void)
 {
@@ -75,26 +73,4 @@ static int __init capability_init (void)
 	return 0;
 }
 
-static void __exit capability_exit (void)
-{
-	if (capability_disable)
-		return;
-	/* remove ourselves from the security framework */
-	if (secondary) {
-		if (mod_unreg_security (KBUILD_MODNAME, &capability_ops))
-			printk (KERN_INFO "Failure unregistering capabilities "
-				"with primary module.\n");
-		return;
-	}
-
-	if (unregister_security (&capability_ops)) {
-		printk (KERN_INFO
-			"Failure unregistering capabilities with the kernel\n");
-	}
-}
-
 security_initcall (capability_init);
-module_exit (capability_exit);
-
-MODULE_DESCRIPTION("Standard Linux Capabilities Security Module");
-MODULE_LICENSE("GPL");

security/commoncap.c

@@ -339,6 +339,3 @@ EXPORT_SYMBOL(cap_task_post_setuid);
 EXPORT_SYMBOL(cap_task_reparent_to_init);
 EXPORT_SYMBOL(cap_syslog);
 EXPORT_SYMBOL(cap_vm_enough_memory);
-
-MODULE_DESCRIPTION("Standard Linux Common Capabilities Security Module");
-MODULE_LICENSE("GPL");

security/dummy.c

@@ -15,7 +15,6 @@
 #undef DEBUG
 
 #include <linux/capability.h>
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/mman.h>
 #include <linux/pagemap.h>

security/root_plug.c

@@ -22,11 +22,11 @@
  *	License.
  */
 
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/security.h>
 #include <linux/usb.h>
+#include <linux/moduleparam.h>
 
 /* flag to keep track of how we were registered */
 static int secondary;
@@ -36,22 +36,14 @@ static int vendor_id = 0x0557;
 static int product_id = 0x2008;
 
 module_param(vendor_id, uint, 0400);
-MODULE_PARM_DESC(vendor_id, "USB Vendor ID of device to look for");
-
 module_param(product_id, uint, 0400);
-MODULE_PARM_DESC(product_id, "USB Product ID of device to look for");
 
 /* should we print out debug messages */
 static int debug = 0;
 
 module_param(debug, bool, 0600);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
 
-#if defined(CONFIG_SECURITY_ROOTPLUG_MODULE)
-#define MY_NAME THIS_MODULE->name
-#else
 #define MY_NAME "root_plug"
-#endif
 
 #define root_dbg(fmt, arg...)					\
 	do {							\
@@ -117,25 +109,4 @@ static int __init rootplug_init (void)
 	return 0;
 }
 
-static void __exit rootplug_exit (void)
-{
-	/* remove ourselves from the security framework */
-	if (secondary) {
-		if (mod_unreg_security (MY_NAME, &rootplug_security_ops))
-			printk (KERN_INFO "Failure unregistering Root Plug "
-				" module with primary module.\n");
-	} else { 
-		if (unregister_security (&rootplug_security_ops)) {
-			printk (KERN_INFO "Failure unregistering Root Plug "
-				"module with the kernel\n");
-		}
-	}
-	printk (KERN_INFO "Root Plug module removed\n");
-}
-
 security_initcall (rootplug_init);
-module_exit (rootplug_exit);
-
-MODULE_DESCRIPTION("Root Plug sample LSM module, written for Linux Journal article");
-MODULE_LICENSE("GPL");
-

security/security.c

@@ -17,7 +17,6 @@
 #include <linux/kernel.h>
 #include <linux/security.h>
 
-#define SECURITY_FRAMEWORK_VERSION	"1.0.0"
 
 /* things that live in dummy.c */
 extern struct security_operations dummy_security_ops;
@@ -52,8 +51,7 @@ static void __init do_security_initcalls(void)
  */
 int __init security_init(void)
 {
-	printk(KERN_INFO "Security Framework v" SECURITY_FRAMEWORK_VERSION
-	       " initialized\n");
+	printk(KERN_INFO "Security Framework initialized\n");
 
 	if (verify(&dummy_security_ops)) {
 		printk(KERN_ERR "%s could not verify "
@@ -173,8 +171,958 @@ int mod_unreg_security(const char *name, struct security_operations *ops)
 	return security_ops->unregister_security(name, ops);
 }
 
-EXPORT_SYMBOL_GPL(register_security);
-EXPORT_SYMBOL_GPL(unregister_security);
-EXPORT_SYMBOL_GPL(mod_reg_security);
-EXPORT_SYMBOL_GPL(mod_unreg_security);
-EXPORT_SYMBOL(security_ops);
+/* Security operations */
+
+int security_ptrace(struct task_struct *parent, struct task_struct *child)
+{
+	return security_ops->ptrace(parent, child);
+}
+
+int security_capget(struct task_struct *target,
+		     kernel_cap_t *effective,
+		     kernel_cap_t *inheritable,
+		     kernel_cap_t *permitted)
+{
+	return security_ops->capget(target, effective, inheritable, permitted);
+}
+
+int security_capset_check(struct task_struct *target,
+			   kernel_cap_t *effective,
+			   kernel_cap_t *inheritable,
+			   kernel_cap_t *permitted)
+{
+	return security_ops->capset_check(target, effective, inheritable, permitted);
+}
+
+void security_capset_set(struct task_struct *target,
+			  kernel_cap_t *effective,
+			  kernel_cap_t *inheritable,
+			  kernel_cap_t *permitted)
+{
+	security_ops->capset_set(target, effective, inheritable, permitted);
+}
+
+int security_capable(struct task_struct *tsk, int cap)
+{
+	return security_ops->capable(tsk, cap);
+}
+
+int security_acct(struct file *file)
+{
+	return security_ops->acct(file);
+}
+
+int security_sysctl(struct ctl_table *table, int op)
+{
+	return security_ops->sysctl(table, op);
+}
+
+int security_quotactl(int cmds, int type, int id, struct super_block *sb)
+{
+	return security_ops->quotactl(cmds, type, id, sb);
+}
+
+int security_quota_on(struct dentry *dentry)
+{
+	return security_ops->quota_on(dentry);
+}
+
+int security_syslog(int type)
+{
+	return security_ops->syslog(type);
+}
+
+int security_settime(struct timespec *ts, struct timezone *tz)
+{
+	return security_ops->settime(ts, tz);
+}
+
+int security_vm_enough_memory(long pages)
+{
+	return security_ops->vm_enough_memory(current->mm, pages);
+}
+
+int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
+{
+	return security_ops->vm_enough_memory(mm, pages);
+}
+
+int security_bprm_alloc(struct linux_binprm *bprm)
+{
+	return security_ops->bprm_alloc_security(bprm);
+}
+
+void security_bprm_free(struct linux_binprm *bprm)
+{
+	security_ops->bprm_free_security(bprm);
+}
+
+void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe)
+{
+	security_ops->bprm_apply_creds(bprm, unsafe);
+}
+
+void security_bprm_post_apply_creds(struct linux_binprm *bprm)
+{
+	security_ops->bprm_post_apply_creds(bprm);
+}
+
+int security_bprm_set(struct linux_binprm *bprm)
+{
+	return security_ops->bprm_set_security(bprm);
+}
+
+int security_bprm_check(struct linux_binprm *bprm)
+{
+	return security_ops->bprm_check_security(bprm);
+}
+
+int security_bprm_secureexec(struct linux_binprm *bprm)
+{
+	return security_ops->bprm_secureexec(bprm);
+}
+
+int security_sb_alloc(struct super_block *sb)
+{
+	return security_ops->sb_alloc_security(sb);
+}
+
+void security_sb_free(struct super_block *sb)
+{
+	security_ops->sb_free_security(sb);
+}
+
+int security_sb_copy_data(struct file_system_type *type, void *orig, void *copy)
+{
+	return security_ops->sb_copy_data(type, orig, copy);
+}
+
+int security_sb_kern_mount(struct super_block *sb, void *data)
+{
+	return security_ops->sb_kern_mount(sb, data);
+}
+
+int security_sb_statfs(struct dentry *dentry)
+{
+	return security_ops->sb_statfs(dentry);
+}
+
+int security_sb_mount(char *dev_name, struct nameidata *nd,
+                       char *type, unsigned long flags, void *data)
+{
+	return security_ops->sb_mount(dev_name, nd, type, flags, data);
+}
+
+int security_sb_check_sb(struct vfsmount *mnt, struct nameidata *nd)
+{
+	return security_ops->sb_check_sb(mnt, nd);
+}
+
+int security_sb_umount(struct vfsmount *mnt, int flags)
+{
+	return security_ops->sb_umount(mnt, flags);
+}
+
+void security_sb_umount_close(struct vfsmount *mnt)
+{
+	security_ops->sb_umount_close(mnt);
+}
+
+void security_sb_umount_busy(struct vfsmount *mnt)
+{
+	security_ops->sb_umount_busy(mnt);
+}
+
+void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
+{
+	security_ops->sb_post_remount(mnt, flags, data);
+}
+
+void security_sb_post_mountroot(void)
+{
+	security_ops->sb_post_mountroot();
+}
+
+void security_sb_post_addmount(struct vfsmount *mnt, struct nameidata *mountpoint_nd)
+{
+	security_ops->sb_post_addmount(mnt, mountpoint_nd);
+}
+
+int security_sb_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd)
+{
+	return security_ops->sb_pivotroot(old_nd, new_nd);
+}
+
+void security_sb_post_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd)
+{
+	security_ops->sb_post_pivotroot(old_nd, new_nd);
+}
+
+int security_inode_alloc(struct inode *inode)
+{
+	inode->i_security = NULL;
+	return security_ops->inode_alloc_security(inode);
+}
+
+void security_inode_free(struct inode *inode)
+{
+	security_ops->inode_free_security(inode);
+}
+
+int security_inode_init_security(struct inode *inode, struct inode *dir,
+				  char **name, void **value, size_t *len)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return -EOPNOTSUPP;
+	return security_ops->inode_init_security(inode, dir, name, value, len);
+}
+EXPORT_SYMBOL(security_inode_init_security);
+
+int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
+{
+	if (unlikely(IS_PRIVATE(dir)))
+		return 0;
+	return security_ops->inode_create(dir, dentry, mode);
+}
+
+int security_inode_link(struct dentry *old_dentry, struct inode *dir,
+			 struct dentry *new_dentry)
+{
+	if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
+		return 0;
+	return security_ops->inode_link(old_dentry, dir, new_dentry);
+}
+
+int security_inode_unlink(struct inode *dir, struct dentry *dentry)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_unlink(dir, dentry);
+}
+
+int security_inode_symlink(struct inode *dir, struct dentry *dentry,
+			    const char *old_name)
+{
+	if (unlikely(IS_PRIVATE(dir)))
+		return 0;
+	return security_ops->inode_symlink(dir, dentry, old_name);
+}
+
+int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+{
+	if (unlikely(IS_PRIVATE(dir)))
+		return 0;
+	return security_ops->inode_mkdir(dir, dentry, mode);
+}
+
+int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_rmdir(dir, dentry);
+}
+
+int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+{
+	if (unlikely(IS_PRIVATE(dir)))
+		return 0;
+	return security_ops->inode_mknod(dir, dentry, mode, dev);
+}
+
+int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
+			   struct inode *new_dir, struct dentry *new_dentry)
+{
+        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
+            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
+		return 0;
+	return security_ops->inode_rename(old_dir, old_dentry,
+					   new_dir, new_dentry);
+}
+
+int security_inode_readlink(struct dentry *dentry)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_readlink(dentry);
+}
+
+int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_follow_link(dentry, nd);
+}
+
+int security_inode_permission(struct inode *inode, int mask, struct nameidata *nd)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return 0;
+	return security_ops->inode_permission(inode, mask, nd);
+}
+
+int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_setattr(dentry, attr);
+}
+
+int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_getattr(mnt, dentry);
+}
+
+void security_inode_delete(struct inode *inode)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return;
+	security_ops->inode_delete(inode);
+}
+
+int security_inode_setxattr(struct dentry *dentry, char *name,
+			     void *value, size_t size, int flags)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_setxattr(dentry, name, value, size, flags);
+}
+
+void security_inode_post_setxattr(struct dentry *dentry, char *name,
+				   void *value, size_t size, int flags)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return;
+	security_ops->inode_post_setxattr(dentry, name, value, size, flags);
+}
+
+int security_inode_getxattr(struct dentry *dentry, char *name)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_getxattr(dentry, name);
+}
+
+int security_inode_listxattr(struct dentry *dentry)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_listxattr(dentry);
+}
+
+int security_inode_removexattr(struct dentry *dentry, char *name)
+{
+	if (unlikely(IS_PRIVATE(dentry->d_inode)))
+		return 0;
+	return security_ops->inode_removexattr(dentry, name);
+}
+
+const char *security_inode_xattr_getsuffix(void)
+{
+	return security_ops->inode_xattr_getsuffix();
+}
+
+int security_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return 0;
+	return security_ops->inode_getsecurity(inode, name, buffer, size, err);
+}
+
+int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return 0;
+	return security_ops->inode_setsecurity(inode, name, value, size, flags);
+}
+
+int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
+{
+	if (unlikely(IS_PRIVATE(inode)))
+		return 0;
+	return security_ops->inode_listsecurity(inode, buffer, buffer_size);
+}
+
+int security_file_permission(struct file *file, int mask)
+{
+	return security_ops->file_permission(file, mask);
+}
+
+int security_file_alloc(struct file *file)
+{
+	return security_ops->file_alloc_security(file);
+}
+
+void security_file_free(struct file *file)
+{
+	security_ops->file_free_security(file);
+}
+
+int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return security_ops->file_ioctl(file, cmd, arg);
+}
+
+int security_file_mmap(struct file *file, unsigned long reqprot,
+			unsigned long prot, unsigned long flags,
+			unsigned long addr, unsigned long addr_only)
+{
+	return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
+}
+
+int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
+			    unsigned long prot)
+{
+	return security_ops->file_mprotect(vma, reqprot, prot);
+}
+
+int security_file_lock(struct file *file, unsigned int cmd)
+{
+	return security_ops->file_lock(file, cmd);
+}
+
+int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return security_ops->file_fcntl(file, cmd, arg);
+}
+
+int security_file_set_fowner(struct file *file)
+{
+	return security_ops->file_set_fowner(file);
+}
+
+int security_file_send_sigiotask(struct task_struct *tsk,
+				  struct fown_struct *fown, int sig)
+{
+	return security_ops->file_send_sigiotask(tsk, fown, sig);
+}
+
+int security_file_receive(struct file *file)
+{
+	return security_ops->file_receive(file);
+}
+
+int security_dentry_open(struct file *file)
+{
+	return security_ops->dentry_open(file);
+}
+
+int security_task_create(unsigned long clone_flags)
+{
+	return security_ops->task_create(clone_flags);
+}
+
+int security_task_alloc(struct task_struct *p)
+{
+	return security_ops->task_alloc_security(p);
+}
+
+void security_task_free(struct task_struct *p)
+{
+	security_ops->task_free_security(p);
+}
+
+int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
+{
+	return security_ops->task_setuid(id0, id1, id2, flags);
+}
+
+int security_task_post_setuid(uid_t old_ruid, uid_t old_euid,
+			       uid_t old_suid, int flags)
+{
+	return security_ops->task_post_setuid(old_ruid, old_euid, old_suid, flags);
+}
+
+int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
+{
+	return security_ops->task_setgid(id0, id1, id2, flags);
+}
+
+int security_task_setpgid(struct task_struct *p, pid_t pgid)
+{
+	return security_ops->task_setpgid(p, pgid);
+}
+
+int security_task_getpgid(struct task_struct *p)
+{
+	return security_ops->task_getpgid(p);
+}
+
+int security_task_getsid(struct task_struct *p)
+{
+	return security_ops->task_getsid(p);
+}
+
+void security_task_getsecid(struct task_struct *p, u32 *secid)
+{
+	security_ops->task_getsecid(p, secid);
+}
+EXPORT_SYMBOL(security_task_getsecid);
+
+int security_task_setgroups(struct group_info *group_info)
+{
+	return security_ops->task_setgroups(group_info);
+}
+
+int security_task_setnice(struct task_struct *p, int nice)
+{
+	return security_ops->task_setnice(p, nice);
+}
+
+int security_task_setioprio(struct task_struct *p, int ioprio)
+{
+	return security_ops->task_setioprio(p, ioprio);
+}
+
+int security_task_getioprio(struct task_struct *p)
+{
+	return security_ops->task_getioprio(p);
+}
+
+int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
+{
+	return security_ops->task_setrlimit(resource, new_rlim);
+}
+
+int security_task_setscheduler(struct task_struct *p,
+				int policy, struct sched_param *lp)
+{
+	return security_ops->task_setscheduler(p, policy, lp);
+}
+
+int security_task_getscheduler(struct task_struct *p)
+{
+	return security_ops->task_getscheduler(p);
+}
+
+int security_task_movememory(struct task_struct *p)
+{
+	return security_ops->task_movememory(p);
+}
+
+int security_task_kill(struct task_struct *p, struct siginfo *info,
+			int sig, u32 secid)
+{
+	return security_ops->task_kill(p, info, sig, secid);
+}
+
+int security_task_wait(struct task_struct *p)
+{
+	return security_ops->task_wait(p);
+}
+
+int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
+			 unsigned long arg4, unsigned long arg5)
+{
+	return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
+}
+
+void security_task_reparent_to_init(struct task_struct *p)
+{
+	security_ops->task_reparent_to_init(p);
+}
+
+void security_task_to_inode(struct task_struct *p, struct inode *inode)
+{
+	security_ops->task_to_inode(p, inode);
+}
+
+int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
+{
+	return security_ops->ipc_permission(ipcp, flag);
+}
+
+int security_msg_msg_alloc(struct msg_msg *msg)
+{
+	return security_ops->msg_msg_alloc_security(msg);
+}
+
+void security_msg_msg_free(struct msg_msg *msg)
+{
+	security_ops->msg_msg_free_security(msg);
+}
+
+int security_msg_queue_alloc(struct msg_queue *msq)
+{
+	return security_ops->msg_queue_alloc_security(msq);
+}
+
+void security_msg_queue_free(struct msg_queue *msq)
+{
+	security_ops->msg_queue_free_security(msq);
+}
+
+int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
+{
+	return security_ops->msg_queue_associate(msq, msqflg);
+}
+
+int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
+{
+	return security_ops->msg_queue_msgctl(msq, cmd);
+}
+
+int security_msg_queue_msgsnd(struct msg_queue *msq,
+			       struct msg_msg *msg, int msqflg)
+{
+	return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
+}
+
+int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
+			       struct task_struct *target, long type, int mode)
+{
+	return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
+}
+
+int security_shm_alloc(struct shmid_kernel *shp)
+{
+	return security_ops->shm_alloc_security(shp);
+}
+
+void security_shm_free(struct shmid_kernel *shp)
+{
+	security_ops->shm_free_security(shp);
+}
+
+int security_shm_associate(struct shmid_kernel *shp, int shmflg)
+{
+	return security_ops->shm_associate(shp, shmflg);
+}
+
+int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
+{
+	return security_ops->shm_shmctl(shp, cmd);
+}
+
+int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
+{
+	return security_ops->shm_shmat(shp, shmaddr, shmflg);
+}
+
+int security_sem_alloc(struct sem_array *sma)
+{
+	return security_ops->sem_alloc_security(sma);
+}
+
+void security_sem_free(struct sem_array *sma)
+{
+	security_ops->sem_free_security(sma);
+}
+
+int security_sem_associate(struct sem_array *sma, int semflg)
+{
+	return security_ops->sem_associate(sma, semflg);
+}
+
+int security_sem_semctl(struct sem_array *sma, int cmd)
+{
+	return security_ops->sem_semctl(sma, cmd);
+}
+
+int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
+			unsigned nsops, int alter)
+{
+	return security_ops->sem_semop(sma, sops, nsops, alter);
+}
+
+void security_d_instantiate(struct dentry *dentry, struct inode *inode)
+{
+	if (unlikely(inode && IS_PRIVATE(inode)))
+		return;
+	security_ops->d_instantiate(dentry, inode);
+}
+EXPORT_SYMBOL(security_d_instantiate);
+
+int security_getprocattr(struct task_struct *p, char *name, char **value)
+{
+	return security_ops->getprocattr(p, name, value);
+}
+
+int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
+{
+	return security_ops->setprocattr(p, name, value, size);
+}
+
+int security_netlink_send(struct sock *sk, struct sk_buff *skb)
+{
+	return security_ops->netlink_send(sk, skb);
+}
+EXPORT_SYMBOL(security_netlink_send);
+
+int security_netlink_recv(struct sk_buff *skb, int cap)
+{
+	return security_ops->netlink_recv(skb, cap);
+}
+EXPORT_SYMBOL(security_netlink_recv);
+
+int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+{
+	return security_ops->secid_to_secctx(secid, secdata, seclen);
+}
+EXPORT_SYMBOL(security_secid_to_secctx);
+
+void security_release_secctx(char *secdata, u32 seclen)
+{
+	return security_ops->release_secctx(secdata, seclen);
+}
+EXPORT_SYMBOL(security_release_secctx);
+
+#ifdef CONFIG_SECURITY_NETWORK
+
+int security_unix_stream_connect(struct socket *sock, struct socket *other,
+				 struct sock *newsk)
+{
+	return security_ops->unix_stream_connect(sock, other, newsk);
+}
+EXPORT_SYMBOL(security_unix_stream_connect);
+
+int security_unix_may_send(struct socket *sock,  struct socket *other)
+{
+	return security_ops->unix_may_send(sock, other);
+}
+EXPORT_SYMBOL(security_unix_may_send);
+
+int security_socket_create(int family, int type, int protocol, int kern)
+{
+	return security_ops->socket_create(family, type, protocol, kern);
+}
+
+int security_socket_post_create(struct socket *sock, int family,
+				int type, int protocol, int kern)
+{
+	return security_ops->socket_post_create(sock, family, type,
+						protocol, kern);
+}
+
+int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
+{
+	return security_ops->socket_bind(sock, address, addrlen);
+}
+
+int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
+{
+	return security_ops->socket_connect(sock, address, addrlen);
+}
+
+int security_socket_listen(struct socket *sock, int backlog)
+{
+	return security_ops->socket_listen(sock, backlog);
+}
+
+int security_socket_accept(struct socket *sock, struct socket *newsock)
+{
+	return security_ops->socket_accept(sock, newsock);
+}
+
+void security_socket_post_accept(struct socket *sock, struct socket *newsock)
+{
+	security_ops->socket_post_accept(sock, newsock);
+}
+
+int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
+{
+	return security_ops->socket_sendmsg(sock, msg, size);
+}
+
+int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
+			    int size, int flags)
+{
+	return security_ops->socket_recvmsg(sock, msg, size, flags);
+}
+
+int security_socket_getsockname(struct socket *sock)
+{
+	return security_ops->socket_getsockname(sock);
+}
+
+int security_socket_getpeername(struct socket *sock)
+{
+	return security_ops->socket_getpeername(sock);
+}
+
+int security_socket_getsockopt(struct socket *sock, int level, int optname)
+{
+	return security_ops->socket_getsockopt(sock, level, optname);
+}
+
+int security_socket_setsockopt(struct socket *sock, int level, int optname)
+{
+	return security_ops->socket_setsockopt(sock, level, optname);
+}
+
+int security_socket_shutdown(struct socket *sock, int how)
+{
+	return security_ops->socket_shutdown(sock, how);
+}
+
+int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
+{
+	return security_ops->socket_sock_rcv_skb(sk, skb);
+}
+EXPORT_SYMBOL(security_sock_rcv_skb);
+
+int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
+				      int __user *optlen, unsigned len)
+{
+	return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
+}
+
+int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
+{
+	return security_ops->socket_getpeersec_dgram(sock, skb, secid);
+}
+EXPORT_SYMBOL(security_socket_getpeersec_dgram);
+
+int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
+{
+	return security_ops->sk_alloc_security(sk, family, priority);
+}
+
+void security_sk_free(struct sock *sk)
+{
+	return security_ops->sk_free_security(sk);
+}
+
+void security_sk_clone(const struct sock *sk, struct sock *newsk)
+{
+	return security_ops->sk_clone_security(sk, newsk);
+}
+
+void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
+{
+	security_ops->sk_getsecid(sk, &fl->secid);
+}
+EXPORT_SYMBOL(security_sk_classify_flow);
+
+void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
+{
+	security_ops->req_classify_flow(req, fl);
+}
+EXPORT_SYMBOL(security_req_classify_flow);
+
+void security_sock_graft(struct sock *sk, struct socket *parent)
+{
+	security_ops->sock_graft(sk, parent);
+}
+EXPORT_SYMBOL(security_sock_graft);
+
+int security_inet_conn_request(struct sock *sk,
+			struct sk_buff *skb, struct request_sock *req)
+{
+	return security_ops->inet_conn_request(sk, skb, req);
+}
+EXPORT_SYMBOL(security_inet_conn_request);
+
+void security_inet_csk_clone(struct sock *newsk,
+			const struct request_sock *req)
+{
+	security_ops->inet_csk_clone(newsk, req);
+}
+
+void security_inet_conn_established(struct sock *sk,
+			struct sk_buff *skb)
+{
+	security_ops->inet_conn_established(sk, skb);
+}
+
+#endif	/* CONFIG_SECURITY_NETWORK */
+
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+
+int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
+{
+	return security_ops->xfrm_policy_alloc_security(xp, sec_ctx);
+}
+EXPORT_SYMBOL(security_xfrm_policy_alloc);
+
+int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new)
+{
+	return security_ops->xfrm_policy_clone_security(old, new);
+}
+
+void security_xfrm_policy_free(struct xfrm_policy *xp)
+{
+	security_ops->xfrm_policy_free_security(xp);
+}
+EXPORT_SYMBOL(security_xfrm_policy_free);
+
+int security_xfrm_policy_delete(struct xfrm_policy *xp)
+{
+	return security_ops->xfrm_policy_delete_security(xp);
+}
+
+int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
+{
+	return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
+}
+EXPORT_SYMBOL(security_xfrm_state_alloc);
+
+int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
+				      struct xfrm_sec_ctx *polsec, u32 secid)
+{
+	if (!polsec)
+		return 0;
+	/*
+	 * We want the context to be taken from secid which is usually
+	 * from the sock.
+	 */
+	return security_ops->xfrm_state_alloc_security(x, NULL, secid);
+}
+
+int security_xfrm_state_delete(struct xfrm_state *x)
+{
+	return security_ops->xfrm_state_delete_security(x);
+}
+EXPORT_SYMBOL(security_xfrm_state_delete);
+
+void security_xfrm_state_free(struct xfrm_state *x)
+{
+	security_ops->xfrm_state_free_security(x);
+}
+
+int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir)
+{
+	return security_ops->xfrm_policy_lookup(xp, fl_secid, dir);
+}
+
+int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
+				       struct xfrm_policy *xp, struct flowi *fl)
+{
+	return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
+}
+
+int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
+{
+	return security_ops->xfrm_decode_session(skb, secid, 1);
+}
+
+void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
+{
+	int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
+
+	BUG_ON(rc);
+}
+EXPORT_SYMBOL(security_skb_classify_flow);
+
+#endif	/* CONFIG_SECURITY_NETWORK_XFRM */
+
+#ifdef CONFIG_KEYS
+
+int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags)
+{
+	return security_ops->key_alloc(key, tsk, flags);
+}
+
+void security_key_free(struct key *key)
+{
+	security_ops->key_free(key);
+}
+
+int security_key_permission(key_ref_t key_ref,
+			    struct task_struct *context, key_perm_t perm)
+{
+	return security_ops->key_permission(key_ref, context, perm);
+}
+
+#endif	/* CONFIG_KEYS */

security/selinux/hooks.c

@@ -22,7 +22,6 @@
  *      as published by the Free Software Foundation.
  */
 
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/ptrace.h>
@@ -86,6 +85,7 @@
 extern unsigned int policydb_loaded_version;
 extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
 extern int selinux_compat_net;
+extern struct security_operations *security_ops;
 
 #ifdef CONFIG_SECURITY_SELINUX_DEVELOP
 int selinux_enforcing = 0;

security/selinux/xfrm.c

@@ -31,7 +31,6 @@
  *   2. Emulating a reasonable SO_PEERSEC across machines
  *   3. Testing addition of sk_policy's with security context via setsockopt
  */
-#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/security.h>