Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem updates from James Morris:
 "The main change in this kernel is Casey's generalized LSM stacking
  work, which removes the hard-coding of Capabilities and Yama stacking,
  allowing multiple arbitrary "small" LSMs to be stacked with a default
  monolithic module (e.g.  SELinux, Smack, AppArmor).

  See
        https://lwn.net/Articles/636056/

  This will allow smaller, simpler LSMs to be incorporated into the
  mainline kernel and arbitrarily stacked by users.  Also, this is a
  useful cleanup of the LSM code in its own right"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
  tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
  vTPM: set virtual device before passing to ibmvtpm_reset_crq
  tpm_ibmvtpm: remove unneccessary message level.
  ima: update builtin policies
  ima: extend "mask" policy matching support
  ima: add support for new "euid" policy condition
  ima: fix ima_show_template_data_ascii()
  Smack: freeing an error pointer in smk_write_revoke_subj()
  selinux: fix setting of security labels on NFS
  selinux: Remove unused permission definitions
  selinux: enable genfscon labeling for sysfs and pstore files
  selinux: enable per-file labeling for debugfs files.
  selinux: update netlink socket classes
  signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
  selinux: Print 'sclass' as string when unrecognized netlink message occurs
  Smack: allow multiple labels in onlycap
  Smack: fix seq operations in smackfs
  ima: pass iint to ima_add_violation()
  ima: wrap event related data to the new ima_event_data structure
  integrity: add validity checks for 'path' parameter
  ...

28 files changed, 1767 insertions, 2427 deletions

diff --git a/security/Makefile b/security/Makefile
index 05f1c934d74b..c9bfbc84ff50 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -14,7 +14,7 @@ obj-y					+= commoncap.o
 obj-$(CONFIG_MMU)			+= min_addr.o
 
 # Object file lists
-obj-$(CONFIG_SECURITY)			+= security.o capability.o
+obj-$(CONFIG_SECURITY)			+= security.o
 obj-$(CONFIG_SECURITYFS)		+= inode.o
 obj-$(CONFIG_SECURITY_SELINUX)		+= selinux/
 obj-$(CONFIG_SECURITY_SMACK)		+= smack/
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index d97cba3e3849..dc0027b28b04 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -347,9 +347,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
 		file_inode(bprm->file)->i_mode
 	};
 	const char *name = NULL, *target = NULL, *info = NULL;
-	int error = cap_bprm_set_creds(bprm);
-	if (error)
-		return error;
+	int error = 0;
 
 	if (bprm->cred_prepared)
 		return 0;
@@ -531,15 +529,13 @@ cleanup:
  */
 int apparmor_bprm_secureexec(struct linux_binprm *bprm)
 {
-	int ret = cap_bprm_secureexec(bprm);
-
 	/* the decision to use secure exec is computed in set_creds
 	 * and stored in bprm->unsafe.
 	 */
-	if (!ret && (bprm->unsafe & AA_SECURE_X_NEEDED))
-		ret = 1;
+	if (bprm->unsafe & AA_SECURE_X_NEEDED)
+		return 1;
 
-	return ret;
+	return 0;
 }
 
 /**
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index e5f1561439db..5696874e8062 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -12,7 +12,7 @@
  * License.
  */
 
-#include <linux/security.h>
+#include <linux/lsm_hooks.h>
 #include <linux/moduleparam.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
@@ -96,19 +96,11 @@ static void apparmor_cred_transfer(struct cred *new, const struct cred *old)
 static int apparmor_ptrace_access_check(struct task_struct *child,
 					unsigned int mode)
 {
-	int error = cap_ptrace_access_check(child, mode);
-	if (error)
-		return error;
-
 	return aa_ptrace(current, child, mode);
 }
 
 static int apparmor_ptrace_traceme(struct task_struct *parent)
 {
-	int error = cap_ptrace_traceme(parent);
-	if (error)
-		return error;
-
 	return aa_ptrace(parent, current, PTRACE_MODE_ATTACH);
 }
 
@@ -123,10 +115,10 @@ static int apparmor_capget(struct task_struct *target, kernel_cap_t *effective,
 	cred = __task_cred(target);
 	profile = aa_cred_profile(cred);
 
-	*effective = cred->cap_effective;
-	*inheritable = cred->cap_inheritable;
-	*permitted = cred->cap_permitted;
-
+	/*
+	 * cap_capget is stacked ahead of this and will
+	 * initialize effective and permitted.
+	 */
 	if (!unconfined(profile) && !COMPLAIN_MODE(profile)) {
 		*effective = cap_intersect(*effective, profile->caps.allow);
 		*permitted = cap_intersect(*permitted, profile->caps.allow);
@@ -140,13 +132,11 @@ static int apparmor_capable(const struct cred *cred, struct user_namespace *ns,
 			    int cap, int audit)
 {
 	struct aa_profile *profile;
-	/* cap_capable returns 0 on success, else -EPERM */
-	int error = cap_capable(cred, ns, cap, audit);
-	if (!error) {
-		profile = aa_cred_profile(cred);
-		if (!unconfined(profile))
-			error = aa_capable(profile, cap, audit);
-	}
+	int error = 0;
+
+	profile = aa_cred_profile(cred);
+	if (!unconfined(profile))
+		error = aa_capable(profile, cap, audit);
 	return error;
 }
 
@@ -615,49 +605,46 @@ static int apparmor_task_setrlimit(struct task_struct *task,
 	return error;
 }
 
-static struct security_operations apparmor_ops = {
-	.name =				"apparmor",
-
-	.ptrace_access_check =		apparmor_ptrace_access_check,
-	.ptrace_traceme =		apparmor_ptrace_traceme,
-	.capget =			apparmor_capget,
-	.capable =			apparmor_capable,
-
-	.path_link =			apparmor_path_link,
-	.path_unlink =			apparmor_path_unlink,
-	.path_symlink =			apparmor_path_symlink,
-	.path_mkdir =			apparmor_path_mkdir,
-	.path_rmdir =			apparmor_path_rmdir,
-	.path_mknod =			apparmor_path_mknod,
-	.path_rename =			apparmor_path_rename,
-	.path_chmod =			apparmor_path_chmod,
-	.path_chown =			apparmor_path_chown,
-	.path_truncate =		apparmor_path_truncate,
-	.inode_getattr =                apparmor_inode_getattr,
-
-	.file_open =			apparmor_file_open,
-	.file_permission =		apparmor_file_permission,
-	.file_alloc_security =		apparmor_file_alloc_security,
-	.file_free_security =		apparmor_file_free_security,
-	.mmap_file =			apparmor_mmap_file,
-	.mmap_addr =			cap_mmap_addr,
-	.file_mprotect =		apparmor_file_mprotect,
-	.file_lock =			apparmor_file_lock,
-
-	.getprocattr =			apparmor_getprocattr,
-	.setprocattr =			apparmor_setprocattr,
-
-	.cred_alloc_blank =		apparmor_cred_alloc_blank,
-	.cred_free =			apparmor_cred_free,
-	.cred_prepare =			apparmor_cred_prepare,
-	.cred_transfer =		apparmor_cred_transfer,
-
-	.bprm_set_creds =		apparmor_bprm_set_creds,
-	.bprm_committing_creds =	apparmor_bprm_committing_creds,
-	.bprm_committed_creds =		apparmor_bprm_committed_creds,
-	.bprm_secureexec =		apparmor_bprm_secureexec,
-
-	.task_setrlimit =		apparmor_task_setrlimit,
+static struct security_hook_list apparmor_hooks[] = {
+	LSM_HOOK_INIT(ptrace_access_check, apparmor_ptrace_access_check),
+	LSM_HOOK_INIT(ptrace_traceme, apparmor_ptrace_traceme),
+	LSM_HOOK_INIT(capget, apparmor_capget),
+	LSM_HOOK_INIT(capable, apparmor_capable),
+
+	LSM_HOOK_INIT(path_link, apparmor_path_link),
+	LSM_HOOK_INIT(path_unlink, apparmor_path_unlink),
+	LSM_HOOK_INIT(path_symlink, apparmor_path_symlink),
+	LSM_HOOK_INIT(path_mkdir, apparmor_path_mkdir),
+	LSM_HOOK_INIT(path_rmdir, apparmor_path_rmdir),
+	LSM_HOOK_INIT(path_mknod, apparmor_path_mknod),
+	LSM_HOOK_INIT(path_rename, apparmor_path_rename),
+	LSM_HOOK_INIT(path_chmod, apparmor_path_chmod),
+	LSM_HOOK_INIT(path_chown, apparmor_path_chown),
+	LSM_HOOK_INIT(path_truncate, apparmor_path_truncate),
+	LSM_HOOK_INIT(inode_getattr, apparmor_inode_getattr),
+
+	LSM_HOOK_INIT(file_open, apparmor_file_open),
+	LSM_HOOK_INIT(file_permission, apparmor_file_permission),
+	LSM_HOOK_INIT(file_alloc_security, apparmor_file_alloc_security),
+	LSM_HOOK_INIT(file_free_security, apparmor_file_free_security),
+	LSM_HOOK_INIT(mmap_file, apparmor_mmap_file),
+	LSM_HOOK_INIT(file_mprotect, apparmor_file_mprotect),
+	LSM_HOOK_INIT(file_lock, apparmor_file_lock),
+
+	LSM_HOOK_INIT(getprocattr, apparmor_getprocattr),
+	LSM_HOOK_INIT(setprocattr, apparmor_setprocattr),
+
+	LSM_HOOK_INIT(cred_alloc_blank, apparmor_cred_alloc_blank),
+	LSM_HOOK_INIT(cred_free, apparmor_cred_free),
+	LSM_HOOK_INIT(cred_prepare, apparmor_cred_prepare),
+	LSM_HOOK_INIT(cred_transfer, apparmor_cred_transfer),
+
+	LSM_HOOK_INIT(bprm_set_creds, apparmor_bprm_set_creds),
+	LSM_HOOK_INIT(bprm_committing_creds, apparmor_bprm_committing_creds),
+	LSM_HOOK_INIT(bprm_committed_creds, apparmor_bprm_committed_creds),
+	LSM_HOOK_INIT(bprm_secureexec, apparmor_bprm_secureexec),
+
+	LSM_HOOK_INIT(task_setrlimit, apparmor_task_setrlimit),
 };
 
 /*
@@ -898,7 +885,7 @@ static int __init apparmor_init(void)
 {
 	int error;
 
-	if (!apparmor_enabled || !security_module_enable(&apparmor_ops)) {
+	if (!apparmor_enabled || !security_module_enable("apparmor")) {
 		aa_info_message("AppArmor disabled by boot time parameter");
 		apparmor_enabled = 0;
 		return 0;
@@ -913,17 +900,10 @@ static int __init apparmor_init(void)
 	error = set_init_cxt();
 	if (error) {
 		AA_ERROR("Failed to set context on init task\n");
-		goto register_security_out;
-	}
-
-	error = register_security(&apparmor_ops);
-	if (error) {
-		struct cred *cred = (struct cred *)current->real_cred;
-		aa_free_task_context(cred_cxt(cred));
-		cred_cxt(cred) = NULL;
-		AA_ERROR("Unable to register AppArmor\n");
-		goto register_security_out;
+		aa_free_root_ns();
+		goto alloc_out;
 	}
+	security_add_hooks(apparmor_hooks, ARRAY_SIZE(apparmor_hooks));
 
 	/* Report that AppArmor successfully initialized */
 	apparmor_initialized = 1;
@@ -936,9 +916,6 @@ static int __init apparmor_init(void)
 
 	return error;
 
-register_security_out:
-	aa_free_root_ns();
-
 alloc_out:
 	aa_destroy_aafs();
 
diff --git a/security/capability.c b/security/capability.c
deleted file mode 100644
index 7d3f38fe02ba..000000000000
--- a/security/capability.c
+++ /dev/null
@@ -1,1158 +0,0 @@
-/*
- *  Capabilities Linux Security Module
- *
- *  This is the default security module in case no other module is loaded.
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- */
-
-#include <linux/security.h>
-
-static int cap_binder_set_context_mgr(struct task_struct *mgr)
-{
-	return 0;
-}
-
-static int cap_binder_transaction(struct task_struct *from,
-				  struct task_struct *to)
-{
-	return 0;
-}
-
-static int cap_binder_transfer_binder(struct task_struct *from,
-				      struct task_struct *to)
-{
-	return 0;
-}
-
-static int cap_binder_transfer_file(struct task_struct *from,
-				    struct task_struct *to, struct file *file)
-{
-	return 0;
-}
-
-static int cap_syslog(int type)
-{
-	return 0;
-}
-
-static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
-{
-	return 0;
-}
-
-static int cap_quota_on(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_bprm_check_security(struct linux_binprm *bprm)
-{
-	return 0;
-}
-
-static void cap_bprm_committing_creds(struct linux_binprm *bprm)
-{
-}
-
-static void cap_bprm_committed_creds(struct linux_binprm *bprm)
-{
-}
-
-static int cap_sb_alloc_security(struct super_block *sb)
-{
-	return 0;
-}
-
-static void cap_sb_free_security(struct super_block *sb)
-{
-}
-
-static int cap_sb_copy_data(char *orig, char *copy)
-{
-	return 0;
-}
-
-static int cap_sb_remount(struct super_block *sb, void *data)
-{
-	return 0;
-}
-
-static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
-{
-	return 0;
-}
-
-static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
-{
-	return 0;
-}
-
-static int cap_sb_statfs(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_sb_mount(const char *dev_name, struct path *path,
-			const char *type, unsigned long flags, void *data)
-{
-	return 0;
-}
-
-static int cap_sb_umount(struct vfsmount *mnt, int flags)
-{
-	return 0;
-}
-
-static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
-{
-	return 0;
-}
-
-static int cap_sb_set_mnt_opts(struct super_block *sb,
-			       struct security_mnt_opts *opts,
-			       unsigned long kern_flags,
-			       unsigned long *set_kern_flags)
-
-{
-	if (unlikely(opts->num_mnt_opts))
-		return -EOPNOTSUPP;
-	return 0;
-}
-
-static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
-				  struct super_block *newsb)
-{
-	return 0;
-}
-
-static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
-{
-	return 0;
-}
-
-static int cap_dentry_init_security(struct dentry *dentry, int mode,
-					struct qstr *name, void **ctx,
-					u32 *ctxlen)
-{
-	return -EOPNOTSUPP;
-}
-
-static int cap_inode_alloc_security(struct inode *inode)
-{
-	return 0;
-}
-
-static void cap_inode_free_security(struct inode *inode)
-{
-}
-
-static int cap_inode_init_security(struct inode *inode, struct inode *dir,
-				   const struct qstr *qstr, const char **name,
-				   void **value, size_t *len)
-{
-	return -EOPNOTSUPP;
-}
-
-static int cap_inode_create(struct inode *inode, struct dentry *dentry,
-			    umode_t mask)
-{
-	return 0;
-}
-
-static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
-			  struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
-			     const char *name)
-{
-	return 0;
-}
-
-static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
-			   umode_t mask)
-{
-	return 0;
-}
-
-static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
-			   umode_t mode, dev_t dev)
-{
-	return 0;
-}
-
-static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
-			    struct inode *new_inode, struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int cap_inode_readlink(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_inode_follow_link(struct dentry *dentry, struct inode *inode,
-				 bool rcu)
-{
-	return 0;
-}
-
-static int cap_inode_permission(struct inode *inode, int mask)
-{
-	return 0;
-}
-
-static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
-{
-	return 0;
-}
-
-static int cap_inode_getattr(const struct path *path)
-{
-	return 0;
-}
-
-static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
-				    const void *value, size_t size, int flags)
-{
-}
-
-static int cap_inode_getxattr(struct dentry *dentry, const char *name)
-{
-	return 0;
-}
-
-static int cap_inode_listxattr(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_inode_getsecurity(const struct inode *inode, const char *name,
-				 void **buffer, bool alloc)
-{
-	return -EOPNOTSUPP;
-}
-
-static int cap_inode_setsecurity(struct inode *inode, const char *name,
-				 const void *value, size_t size, int flags)
-{
-	return -EOPNOTSUPP;
-}
-
-static int cap_inode_listsecurity(struct inode *inode, char *buffer,
-				  size_t buffer_size)
-{
-	return 0;
-}
-
-static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
-{
-	*secid = 0;
-}
-
-#ifdef CONFIG_SECURITY_PATH
-static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
-			  unsigned int dev)
-{
-	return 0;
-}
-
-static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
-{
-	return 0;
-}
-
-static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_path_unlink(struct path *dir, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int cap_path_symlink(struct path *dir, struct dentry *dentry,
-			    const char *old_name)
-{
-	return 0;
-}
-
-static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
-			 struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
-			   struct path *new_path, struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int cap_path_truncate(struct path *path)
-{
-	return 0;
-}
-
-static int cap_path_chmod(struct path *path, umode_t mode)
-{
-	return 0;
-}
-
-static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
-{
-	return 0;
-}
-
-static int cap_path_chroot(struct path *root)
-{
-	return 0;
-}
-#endif
-
-static int cap_file_permission(struct file *file, int mask)
-{
-	return 0;
-}
-
-static int cap_file_alloc_security(struct file *file)
-{
-	return 0;
-}
-
-static void cap_file_free_security(struct file *file)
-{
-}
-
-static int cap_file_ioctl(struct file *file, unsigned int command,
-			  unsigned long arg)
-{
-	return 0;
-}
-
-static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
-			     unsigned long prot)
-{
-	return 0;
-}
-
-static int cap_file_lock(struct file *file, unsigned int cmd)
-{
-	return 0;
-}
-
-static int cap_file_fcntl(struct file *file, unsigned int cmd,
-			  unsigned long arg)
-{
-	return 0;
-}
-
-static void cap_file_set_fowner(struct file *file)
-{
-	return;
-}
-
-static int cap_file_send_sigiotask(struct task_struct *tsk,
-				   struct fown_struct *fown, int sig)
-{
-	return 0;
-}
-
-static int cap_file_receive(struct file *file)
-{
-	return 0;
-}
-
-static int cap_file_open(struct file *file, const struct cred *cred)
-{
-	return 0;
-}
-
-static int cap_task_create(unsigned long clone_flags)
-{
-	return 0;
-}
-
-static void cap_task_free(struct task_struct *task)
-{
-}
-
-static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
-{
-	return 0;
-}
-
-static void cap_cred_free(struct cred *cred)
-{
-}
-
-static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
-{
-	return 0;
-}
-
-static void cap_cred_transfer(struct cred *new, const struct cred *old)
-{
-}
-
-static int cap_kernel_act_as(struct cred *new, u32 secid)
-{
-	return 0;
-}
-
-static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
-{
-	return 0;
-}
-
-static int cap_kernel_fw_from_file(struct file *file, char *buf, size_t size)
-{
-	return 0;
-}
-
-static int cap_kernel_module_request(char *kmod_name)
-{
-	return 0;
-}
-
-static int cap_kernel_module_from_file(struct file *file)
-{
-	return 0;
-}
-
-static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
-{
-	return 0;
-}
-
-static int cap_task_getpgid(struct task_struct *p)
-{
-	return 0;
-}
-
-static int cap_task_getsid(struct task_struct *p)
-{
-	return 0;
-}
-
-static void cap_task_getsecid(struct task_struct *p, u32 *secid)
-{
-	*secid = 0;
-}
-
-static int cap_task_getioprio(struct task_struct *p)
-{
-	return 0;
-}
-
-static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
-		struct rlimit *new_rlim)
-{
-	return 0;
-}
-
-static int cap_task_getscheduler(struct task_struct *p)
-{
-	return 0;
-}
-
-static int cap_task_movememory(struct task_struct *p)
-{
-	return 0;
-}
-
-static int cap_task_wait(struct task_struct *p)
-{
-	return 0;
-}
-
-static int cap_task_kill(struct task_struct *p, struct siginfo *info,
-			 int sig, u32 secid)
-{
-	return 0;
-}
-
-static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
-{
-}
-
-static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
-{
-	return 0;
-}
-
-static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
-{
-	*secid = 0;
-}
-
-static int cap_msg_msg_alloc_security(struct msg_msg *msg)
-{
-	return 0;
-}
-
-static void cap_msg_msg_free_security(struct msg_msg *msg)
-{
-}
-
-static int cap_msg_queue_alloc_security(struct msg_queue *msq)
-{
-	return 0;
-}
-
-static void cap_msg_queue_free_security(struct msg_queue *msq)
-{
-}
-
-static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
-{
-	return 0;
-}
-
-static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
-{
-	return 0;
-}
-
-static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
-				int msgflg)
-{
-	return 0;
-}
-
-static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
-				struct task_struct *target, long type, int mode)
-{
-	return 0;
-}
-
-static int cap_shm_alloc_security(struct shmid_kernel *shp)
-{
-	return 0;
-}
-
-static void cap_shm_free_security(struct shmid_kernel *shp)
-{
-}
-
-static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
-{
-	return 0;
-}
-
-static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
-{
-	return 0;
-}
-
-static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
-			 int shmflg)
-{
-	return 0;
-}
-
-static int cap_sem_alloc_security(struct sem_array *sma)
-{
-	return 0;
-}
-
-static void cap_sem_free_security(struct sem_array *sma)
-{
-}
-
-static int cap_sem_associate(struct sem_array *sma, int semflg)
-{
-	return 0;
-}
-
-static int cap_sem_semctl(struct sem_array *sma, int cmd)
-{
-	return 0;
-}
-
-static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
-			 unsigned nsops, int alter)
-{
-	return 0;
-}
-
-#ifdef CONFIG_SECURITY_NETWORK
-static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
-				   struct sock *newsk)
-{
-	return 0;
-}
-
-static int cap_unix_may_send(struct socket *sock, struct socket *other)
-{
-	return 0;
-}
-
-static int cap_socket_create(int family, int type, int protocol, int kern)
-{
-	return 0;
-}
-
-static int cap_socket_post_create(struct socket *sock, int family, int type,
-				  int protocol, int kern)
-{
-	return 0;
-}
-
-static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
-			   int addrlen)
-{
-	return 0;
-}
-
-static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
-			      int addrlen)
-{
-	return 0;
-}
-
-static int cap_socket_listen(struct socket *sock, int backlog)
-{
-	return 0;
-}
-
-static int cap_socket_accept(struct socket *sock, struct socket *newsock)
-{
-	return 0;
-}
-
-static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
-{
-	return 0;
-}
-
-static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
-			      int size, int flags)
-{
-	return 0;
-}
-
-static int cap_socket_getsockname(struct socket *sock)
-{
-	return 0;
-}
-
-static int cap_socket_getpeername(struct socket *sock)
-{
-	return 0;
-}
-
-static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
-{
-	return 0;
-}
-
-static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
-{
-	return 0;
-}
-
-static int cap_socket_shutdown(struct socket *sock, int how)
-{
-	return 0;
-}
-
-static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
-{
-	return 0;
-}
-
-static int cap_socket_getpeersec_stream(struct socket *sock,
-					char __user *optval,
-					int __user *optlen, unsigned len)
-{
-	return -ENOPROTOOPT;
-}
-
-static int cap_socket_getpeersec_dgram(struct socket *sock,
-				       struct sk_buff *skb, u32 *secid)
-{
-	return -ENOPROTOOPT;
-}
-
-static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
-{
-	return 0;
-}
-
-static void cap_sk_free_security(struct sock *sk)
-{
-}
-
-static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
-{
-}
-
-static void cap_sk_getsecid(struct sock *sk, u32 *secid)
-{
-}
-
-static void cap_sock_graft(struct sock *sk, struct socket *parent)
-{
-}
-
-static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
-				 struct request_sock *req)
-{
-	return 0;
-}
-
-static void cap_inet_csk_clone(struct sock *newsk,
-			       const struct request_sock *req)
-{
-}
-
-static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
-{
-}
-
-static int cap_secmark_relabel_packet(u32 secid)
-{
-	return 0;
-}
-
-static void cap_secmark_refcount_inc(void)
-{
-}
-
-static void cap_secmark_refcount_dec(void)
-{
-}
-
-static void cap_req_classify_flow(const struct request_sock *req,
-				  struct flowi *fl)
-{
-}
-
-static int cap_tun_dev_alloc_security(void **security)