security: remove dummy module

Remove the dummy module and make the "capability" module the default.

Compile and boot tested.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

security/Kconfig

@@ -73,17 +73,9 @@ config SECURITY_NETWORK_XFRM
 	  IPSec.
 	  If you are unsure how to answer this question, answer N.
 
-config SECURITY_CAPABILITIES
-	bool "Default Linux Capabilities"
-	depends on SECURITY
-	default y
-	help
-	  This enables the "default" Linux capabilities functionality.
-	  If you are unsure how to answer this question, answer Y.
-
 config SECURITY_FILE_CAPABILITIES
 	bool "File POSIX Capabilities (EXPERIMENTAL)"
-	depends on (SECURITY=n || SECURITY_CAPABILITIES!=n) && EXPERIMENTAL
+	depends on SECURITY && EXPERIMENTAL
 	default n
 	help
 	  This enables filesystem capabilities, allowing you to give

security/Makefile

@@ -6,16 +6,13 @@ obj-$(CONFIG_KEYS)			+= keys/
 subdir-$(CONFIG_SECURITY_SELINUX)	+= selinux
 subdir-$(CONFIG_SECURITY_SMACK)		+= smack
 
-# if we don't select a security model, use the default capabilities
-ifneq ($(CONFIG_SECURITY),y)
+# always enable default capabilities
 obj-y		+= commoncap.o
-endif
 
 # Object file lists
-obj-$(CONFIG_SECURITY)			+= security.o dummy.o inode.o
+obj-$(CONFIG_SECURITY)			+= security.o capability.o inode.o
 # Must precede capability.o in order to stack properly.
 obj-$(CONFIG_SECURITY_SELINUX)		+= selinux/built-in.o
-obj-$(CONFIG_SECURITY_SMACK)		+= commoncap.o smack/built-in.o
-obj-$(CONFIG_SECURITY_CAPABILITIES)	+= commoncap.o capability.o
-obj-$(CONFIG_SECURITY_ROOTPLUG)		+= commoncap.o root_plug.o
+obj-$(CONFIG_SECURITY_SMACK)		+= smack/built-in.o
+obj-$(CONFIG_SECURITY_ROOTPLUG)		+= root_plug.o
 obj-$(CONFIG_CGROUP_DEVICE)		+= device_cgroup.o

security/capability.c

 /*
  *  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
@@ -8,75 +10,995 @@
  *
  */
 
-#include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/security.h>
-#include <linux/file.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/pagemap.h>
-#include <linux/swap.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/ptrace.h>
-#include <linux/moduleparam.h>
-
-static struct security_operations capability_ops = {
-	.ptrace =			cap_ptrace,
-	.capget =			cap_capget,
-	.capset_check =			cap_capset_check,
-	.capset_set =			cap_capset_set,
-	.capable =			cap_capable,
-	.settime =			cap_settime,
-	.netlink_send =			cap_netlink_send,
-	.netlink_recv =			cap_netlink_recv,
-
-	.bprm_apply_creds =		cap_bprm_apply_creds,
-	.bprm_set_security =		cap_bprm_set_security,
-	.bprm_secureexec =		cap_bprm_secureexec,
-
-	.inode_setxattr =		cap_inode_setxattr,
-	.inode_removexattr =		cap_inode_removexattr,
-	.inode_need_killpriv =		cap_inode_need_killpriv,
-	.inode_killpriv =		cap_inode_killpriv,
-
-	.task_setscheduler =		cap_task_setscheduler,
-	.task_setioprio =		cap_task_setioprio,
-	.task_setnice =			cap_task_setnice,
-	.task_post_setuid =		cap_task_post_setuid,
-	.task_prctl =                   cap_task_prctl,
-	.task_reparent_to_init =	cap_task_reparent_to_init,
-
-	.syslog =                       cap_syslog,
-
-	.vm_enough_memory =             cap_vm_enough_memory,
-};
 
-/* flag to keep track of how we were registered */
-static int secondary;
+static int cap_acct(struct file *file)
+{
+	return 0;
+}
+
+static int cap_sysctl(ctl_table *table, int op)
+{
+	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_alloc_security(struct linux_binprm *bprm)
+{
+	return 0;
+}
+
+static void cap_bprm_free_security(struct linux_binprm *bprm)
+{
+}
+
+static void cap_bprm_post_apply_creds(struct linux_binprm *bprm)
+{
+}
+
+static int cap_bprm_check_security(struct linux_binprm *bprm)
+{
+	return 0;
+}
+
+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_kern_mount(struct super_block *sb, 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(char *dev_name, struct path *path, char *type,
+			unsigned long flags, void *data)
+{
+	return 0;
+}
+
+static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path)
+{
+	return 0;
+}
+
+static int cap_sb_umount(struct vfsmount *mnt, int flags)
+{
+	return 0;
+}
+
+static void cap_sb_umount_close(struct vfsmount *mnt)
+{
+}
+
+static void cap_sb_umount_busy(struct vfsmount *mnt)
+{
+}
+
+static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags,
+				void *data)
+{
+}
+
+static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path)
+{
+}
+
+static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
+{
+	return 0;
+}
+
+static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path)
+{
+}
+
+static int cap_sb_set_mnt_opts(struct super_block *sb,
+			       struct security_mnt_opts *opts)
+{
+	if (unlikely(opts->num_mnt_opts))
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
+				  struct super_block *newsb)
+{
+}
+
+static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
+{
+	return 0;
+}
+
+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,
+				   char **name, void **value, size_t *len)
+{
+	return -EOPNOTSUPP;
+}
+
+static int cap_inode_create(struct inode *inode, struct dentry *dentry,
+			    int 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,
+			   int 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,
+			   int 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 nameidata *nameidata)
+{
+	return 0;
+}
+
+static int cap_inode_permission(struct inode *inode, int mask,
+				struct nameidata *nd)
+{
+	return 0;
+}
+
+static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
+{
+	return 0;
+}
+
+static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
+{
+	return 0;
+}
+
+static void cap_inode_delete(struct inode *ino)
+{
+}
+
+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;
+}
+
+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_mmap(struct file *file, unsigned long reqprot,
+			 unsigned long prot, unsigned long flags,
+			 unsigned long addr, unsigned long addr_only)
+{
+	if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
+		return -EACCES;
+	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 int cap_file_set_fowner(struct file *file)
+{
+	return 0;
+}
+
+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_dentry_open(struct file *file)
+{
+	return 0;
+}
+
+static int cap_task_create(unsigned long clone_flags)
+{
+	return 0;
+}
+
+static int cap_task_alloc_security(struct task_struct *p)
+{
+	return 0;
+}
+
+static void cap_task_free_security(struct task_struct *p)
+{
+}
+
+static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
+{
+	return 0;
+}
+
+static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
+{
+	return 0;
+}
 
-static int capability_disable;
-module_param_named(disable, capability_disable, int, 0);
+static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
+{
+	return 0;
+}
 
-static int __init capability_init (void)
+static int cap_task_getpgid(struct task_struct *p)
 {
-	if (capability_disable) {
-		printk(KERN_INFO "Capabilities disabled at initialization\n");
-		return 0;
-	}
-	/* register ourselves with the security framework */
-	if (register_security (&capability_ops)) {
-		/* try registering with primary module */
-		if (mod_reg_security (KBUILD_MODNAME, &capability_ops)) {
-			printk (KERN_INFO "Failure registering capabilities "
-				"with primary security module.\n");
-			return -EINVAL;
-		}
-		secondary = 1;
-	}
-	printk (KERN_INFO "Capability LSM initialized%s\n",
-		secondary ? " as secondary" : "");
 	return 0;
 }
 
-security_initcall (capability_init);
+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_setgroups(struct group_info *group_info)
+{
+	return 0;
+}
+
+static int cap_task_getioprio(struct task_struct *p)
+{
+	return 0;
+}
+
+static int cap_task_setrlimit(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 socket *sock, struct socket *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 void cap_socket_post_accept(struct socket *sock, struct socket *newsock)
+{
+}
+
+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 void cap_req_classify_flow(const struct request_sock *req,
+				  struct flowi *fl)
+{
+}
+#endif	/* CONFIG_SECURITY_NETWORK */
+
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
+					  struct xfrm_user_sec_ctx *sec_ctx)
+{
+	return 0;
+}
+
+static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
+					  struct xfrm_sec_ctx **new_ctxp)
+{
+	return 0;
+}
+
+static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
+{
+}
+
+static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
+{
+	return 0;
+}
+
+static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
+					 struct xfrm_user_sec_ctx *sec_ctx,
+					 u32 secid)
+{
+	return 0;
+}
+
+static void cap_xfrm_state_free_security(struct xfrm_state *x)
+{
+}
+
+static int cap_xfrm_state_delete_security(struct xfrm_state *x)
+{
+	return 0;
+}
+
+static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
+{
+	return 0;
+}
+
+static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
+					 struct xfrm_policy *xp,
+					 struct flowi *fl)
+{
+	return 1;
+}
+
+static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
+{
+	return 0;
+}
+
+#endif /* CONFIG_SECURITY_NETWORK_XFRM */
+static int cap_register_security(const char *name,
+				 struct security_operations *ops)
+{
+	return -EINVAL;
+}
+
+static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
+{
+}
+
+static int cap_getprocattr(struct task_struct *p, char *name, char **value)
+{
+	return -EINVAL;
+}
+
+static int cap_setprocattr(struct task_struct *p, char *name, void *value,
+			   size_t size)
+{
+	return -EINVAL;
+}
+
+static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+{
+	return -EOPNOTSUPP;
+}
+
+static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
+{
+	return -EOPNOTSUPP;
+}
+
+static void cap_release_secctx(char *secdata, u32 seclen)
+{
+}
+
+#ifdef CONFIG_KEYS
+static int cap_key_alloc(struct key *key, struct task_struct *ctx,
+			 unsigned long flags)
+{
+	return 0;
+}
+
+static void cap_key_free(struct key *key)
+{
+}
+
+static int cap_key_permission(key_ref_t key_ref, struct task_struct *context,
+			      key_perm_t perm)
+{
+	return 0;
+}
+
+static int cap_key_getsecurity(struct key *key, char **_buffer)
+{
+	*_buffer = NULL;
+	return 0;
+}
+
+#endif /* CONFIG_KEYS */
+
+#ifdef CONFIG_AUDIT
+static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
+{
+	return 0;
+}
+
+static int cap_audit_rule_known(struct audit_krule *krule)
+{
+	return 0;
+}
+
+static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
+				struct audit_context *actx)
+{
+	return 0;
+}
+
+static void cap_audit_rule_free(void *lsmrule)
+{
+}
+#endif /* CONFIG_AUDIT */
+
+struct security_operations default_security_ops = {
+	.name	= "default",
+};
+
+#define set_to_cap_if_null(ops, function)				\
+	do {								\
+		if (!ops->function) {					\
+			ops->function = cap_##function;			\
+			pr_debug("Had to override the " #function	\
+				 " security operation with the default.\n");\
+			}						\
+	} while (0)
+
+void security_fixup_ops(struct security_operations *ops)
+{
+	set_to_cap_if_null(ops, ptrace);
+	set_to_cap_if_null(ops, capget);
+	set_to_cap_if_null(ops, capset_check);
+	set_to_cap_if_null(ops, capset_set);
+	set_to_cap_if_null(ops, acct);
+	set_to_cap_if_null(ops, capable);
+	set_to_cap_if_null(ops, quotactl);
+	set_to_cap_if_null(ops, quota_on);
+	set_to_cap_if_null(ops, sysctl);
+	set_to_cap_if_null(ops, syslog);
+	set_to_cap_if_null(ops, settime);
+	set_to_cap_if_null(ops, vm_enough_memory);
+	set_to_cap_if_null(ops, bprm_alloc_security);
+	set_to_cap_if_null(ops, bprm_free_security);
+	set_to_cap_if_null(ops, bprm_apply_creds);
+	set_to_cap_if_null(ops, bprm_post_apply_creds);
+	set_to_cap_if_null(ops, bprm_set_security);
+	set_to_cap_if_null(ops, bprm_check_security);
+	set_to_cap_if_null(ops, bprm_secureexec);
+	set_to_cap_if_null(ops, sb_alloc_security);
+	set_to_cap_if_null(ops, sb_free_security);
+	set_to_cap_if_null(ops, sb_copy_data);
+	set_to_cap_if_null(ops, sb_kern_mount);
+	set_to_cap_if_null(ops, sb_show_options);
+	set_to_cap_if_null(ops, sb_statfs);
+	set_to_cap_if_null(ops, sb_mount);
+	set_to_cap_if_null(ops, sb_check_sb);
+	set_to_cap_if_null(ops, sb_umount);
+	set_to_cap_if_null(ops, sb_umount_close);
+	set_to_cap_if_null(ops, sb_umount_busy);
+	set_to_cap_if_null(ops, sb_post_remount);
+	set_to_cap_if_null(ops, sb_post_addmount);
+	set_to_cap_if_null(ops, sb_pivotroot);
+	set_to_cap_if_null(ops, sb_post_pivotroot);
+	set_to_cap_if_null(ops, sb_set_mnt_opts);
+	set_to_cap_if_null(ops, sb_clone_mnt_opts);
+	set_to_cap_if_null(ops, sb_parse_opts_str);
+	set_to_cap_if_null(ops, inode_alloc_security);
+	set_to_cap_if_null(ops, inode_free_security);
+	set_to_cap_if_null(ops, inode_init_security);
+	set_to_cap_if_null(ops, inode_create);
+	set_to_cap_if_null(ops, inode_link);
+	set_to_cap_if_null(ops, inode_unlink);
+	set_to_cap_if_null(ops, inode_symlink);
+	set_to_cap_if_null(ops, inode_mkdir);
+	set_to_cap_if_null(ops, inode_rmdir);
+	set_to_cap_if_null(ops, inode_mknod);
+	set_to_cap_if_null(ops, inode_rename);
+	set_to_cap_if_null(ops, inode_readlink);
+	set_to_cap_if_null(ops, inode_follow_link);
+	set_to_cap_if_null(ops, inode_permission);
+	set_to_cap_if_null(ops, inode_setattr);
+	set_to_cap_if_null(ops, inode_getattr);
+	set_to_cap_if_null(ops, inode_delete);
+	set_to_cap_if_null(ops, inode_setxattr);
+	set_to_cap_if_null(ops, inode_post_setxattr);
+	set_to_cap_if_null(ops, inode_getxattr);
+	set_to_cap_if_null(ops, inode_listxattr);
+	set_to_cap_if_null(ops, inode_removexattr);
+	set_to_cap_if_null(ops, inode_need_killpriv);
+	set_to_cap_if_null(ops, inode_killpriv);
+	set_to_cap_if_null(ops, inode_getsecurity);
+	set_to_cap_if_null(ops, inode_setsecurity);
+	set_to_cap_if_null(ops, inode_listsecurity);
+	set_to_cap_if_null(ops, inode_getsecid);
+	set_to_cap_if_null(ops, file_permission);
+	set_to_cap_if_null(ops, file_alloc_security);
+	set_to_cap_if_null(ops, file_free_security);
+	set_to_cap_if_null(ops, file_ioctl);
+	set_to_cap_if_null(ops, file_mmap);
+	set_to_cap_if_null(ops, file_mprotect);
+	set_to_cap_if_null(ops, file_lock);
+	set_to_cap_if_null(ops, file_fcntl);
+	set_to_cap_if_null(ops, file_set_fowner);
+	set_to_cap_if_null(ops, file_send_sigiotask);
+	set_to_cap_if_null(ops, file_receive);
+	set_to_cap_if_null(ops, dentry_open);
+	set_to_cap_if_null(ops, task_create);
+	set_to_cap_if_null(ops, task_alloc_security);
+	set_to_cap_if_null(ops, task_free_security);
+	set_to_cap_if_null(ops, task_setuid);
+	set_to_cap_if_null(ops, task_post_setuid);
+	set_to_cap_if_null(ops, task_setgid);
+	set_to_cap_if_null(ops, task_setpgid);
+	set_to_cap_if_null(ops, task_getpgid);
+	set_to_cap_if_null(ops, task_getsid);
+	set_to_cap_if_null(ops, task_getsecid);
+	set_to_cap_if_null(ops, task_setgroups);
+	set_to_cap_if_null(ops, task_setnice);
+	set_to_cap_if_null(ops, task_setioprio);
+	set_to_cap_if_null(ops, task_getioprio);
+	set_to_cap_if_null(ops, task_setrlimit);
+	set_to_cap_if_null(ops, task_setscheduler);
+	set_to_cap_if_null(ops, task_getscheduler);
+	set_to_cap_if_null(ops, task_movememory);
+	set_to_cap_if_null(ops, task_wait);
+	set_to_cap_if_null(ops, task_kill);
+	set_to_cap_if_null(ops, task_prctl);
+	set_to_cap_if_null(ops, task_reparent_to_init);
+	set_to_cap_if_null(ops, task_to_inode);
+	set_to_cap_if_null(ops, ipc_permission);
+	set_to_cap_if_null(ops, ipc_getsecid);
+	set_to_cap_if_null(ops, msg_msg_alloc_security);
+	set_to_cap_if_null(ops, msg_msg_free_security);
+	set_to_cap_if_null(ops, msg_queue_alloc_security);
+	set_to_cap_if_null(ops, msg_queue_free_security);
+	set_to_cap_if_null(ops, msg_queue_associate);
+	set_to_cap_if_null(ops, msg_queue_msgctl);
+	set_to_cap_if_null(ops, msg_queue_msgsnd);
+	set_to_cap_if_null(ops, msg_queue_msgrcv);
+	set_to_cap_if_null(ops, shm_alloc_security);
+	set_to_cap_if_null(ops, shm_free_security);
+	set_to_cap_if_null(ops, shm_associate);
+	set_to_cap_if_null(ops, shm_shmctl);
+	set_to_cap_if_null(ops, shm_shmat);
+	set_to_cap_if_null(ops, sem_alloc_security);
+	set_to_cap_if_null(ops, sem_free_security);
+	set_to_cap_if_null(ops, sem_associate);
+	set_to_cap_if_null(ops, sem_semctl);
+	set_to_cap_if_null(ops, sem_semop);
+	set_to_cap_if_null(ops, netlink_send);
+	set_to_cap_if_null(ops, netlink_recv);
+	set_to_cap_if_null(ops, register_security);
+	set_to_cap_if_null(ops, d_instantiate);
+	set_to_cap_if_null(ops, getprocattr);
+	set_to_cap_if_null(ops, setprocattr);
+	set_to_cap_if_null(ops, secid_to_secctx);
+	set_to_cap_if_null(ops, secctx_to_secid);
+	set_to_cap_if_null(ops, release_secctx);
+#ifdef CONFIG_SECURITY_NETWORK
+	set_to_cap_if_null(ops, unix_stream_connect);
+	set_to_cap_if_null(ops, unix_may_send);
+	set_to_cap_if_null(ops, socket_create);
+	set_to_cap_if_null(ops, socket_post_create);
+	set_to_cap_if_null(ops, socket_bind);
+	set_to_cap_if_null(ops, socket_connect);
+	set_to_cap_if_null(ops, socket_listen);
+	set_to_cap_if_null(ops, socket_accept);
+	set_to_cap_if_null(ops, socket_post_accept);
+	set_to_cap_if_null(ops, socket_sendmsg);
+	set_to_cap_if_null(ops, socket_recvmsg);
+	set_to_cap_if_null(ops, socket_getsockname);
+	set_to_cap_if_null(ops, socket_getpeername);
+	set_to_cap_if_null(ops, socket_setsockopt);
+	set_to_cap_if_null(ops, socket_getsockopt);
+	set_to_cap_if_null(ops, socket_shutdown);
+	set_to_cap_if_null(ops, socket_sock_rcv_skb);
+	set_to_cap_if_null(ops, socket_getpeersec_stream);
+	set_to_cap_if_null(ops, socket_getpeersec_dgram);
+	set_to_cap_if_null(ops, sk_alloc_security);
+	set_to_cap_if_null(ops, sk_free_security);
+	set_to_cap_if_null(ops, sk_clone_security);
+	set_to_cap_if_null(ops, sk_getsecid);
+	set_to_cap_if_null(ops, sock_graft);
+	set_to_cap_if_null(ops, inet_conn_request);
+	set_to_cap_if_null(ops, inet_csk_clone);
+	set_to_cap_if_null(ops, inet_conn_established);
+	set_to_cap_if_null(ops, req_classify_flow);
+#endif	/* CONFIG_SECURITY_NETWORK */
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+	set_to_cap_if_null(ops, xfrm_policy_alloc_security);
+	set_to_cap_if_null(ops, xfrm_policy_clone_security);
+	set_to_cap_if_null(ops, xfrm_policy_free_security);
+	set_to_cap_if_null(ops, xfrm_policy_delete_security);
+	set_to_cap_if_null(ops, xfrm_state_alloc_security);
+	set_to_cap_if_null(ops, xfrm_state_free_security);
+	set_to_cap_if_null(ops, xfrm_state_delete_security);
+	set_to_cap_if_null(ops, xfrm_policy_lookup);
+	set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
+	set_to_cap_if_null(ops, xfrm_decode_session);
+#endif	/* CONFIG_SECURITY_NETWORK_XFRM */
+#ifdef CONFIG_KEYS
+	set_to_cap_if_null(ops, key_alloc);
+	set_to_cap_if_null(ops, key_free);
+	set_to_cap_if_null(ops, key_permission);
+	set_to_cap_if_null(ops, key_getsecurity);
+#endif	/* CONFIG_KEYS */
+#ifdef CONFIG_AUDIT
+	set_to_cap_if_null(ops, audit_rule_init);
+	set_to_cap_if_null(ops, audit_rule_known);
+	set_to_cap_if_null(ops, audit_rule_match);
+	set_to_cap_if_null(ops, audit_rule_free);
+#endif
+}

security/dummy.c

-/*
- * Stub functions for the default security function pointers in case no
- * security model is loaded.
- *
- * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
- * Copyright (C) 2001-2002  Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
- *
- *	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.
- */
-
-#undef DEBUG
-
-#include <linux/capability.h>
-#include <linux/kernel.h>
-#include <linux/mman.h>
-#include <linux/pagemap.h>
-#include <linux/swap.h>
-#include <linux/security.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <net/sock.h>
-#include <linux/xattr.h>
-#include <linux/hugetlb.h>
-#include <linux/ptrace.h>
-#include <linux/file.h>
-#include <linux/prctl.h>
-#include <linux/securebits.h>
-
-static int dummy_ptrace (struct task_struct *parent, struct task_struct *child,
-			 unsigned int mode)
-{
-	return 0;
-}
-
-static int dummy_capget (struct task_struct *target, kernel_cap_t * effective,
-			 kernel_cap_t * inheritable, kernel_cap_t * permitted)
-{
-	if (target->euid == 0) {
-		cap_set_full(*permitted);
-		cap_set_init_eff(*effective);
-	} else {
-		cap_clear(*permitted);
-		cap_clear(*effective);
-	}
-
-	cap_clear(*inheritable);
-
-	if (target->fsuid != 0) {
-		*permitted = cap_drop_fs_set(*permitted);
-		*effective = cap_drop_fs_set(*effective);
-	}
-	return 0;
-}
-
-static int dummy_capset_check (struct task_struct *target,
-			       kernel_cap_t * effective,
-			       kernel_cap_t * inheritable,
-			       kernel_cap_t * permitted)
-{
-	return -EPERM;
-}
-
-static void dummy_capset_set (struct task_struct *target,
-			      kernel_cap_t * effective,
-			      kernel_cap_t * inheritable,
-			      kernel_cap_t * permitted)
-{
-	return;
-}
-
-static int dummy_acct (struct file *file)
-{
-	return 0;
-}
-
-static int dummy_capable (struct task_struct *tsk, int cap)
-{
-	if (cap_raised (tsk->cap_effective, cap))
-		return 0;
-	return -EPERM;
-}
-
-static int dummy_sysctl (ctl_table * table, int op)
-{
-	return 0;
-}
-
-static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb)
-{
-	return 0;
-}
-
-static int dummy_quota_on (struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_syslog (int type)
-{
-	if ((type != 3 && type != 10) && current->euid)
-		return -EPERM;
-	return 0;
-}
-
-static int dummy_settime(struct timespec *ts, struct timezone *tz)
-{
-	if (!capable(CAP_SYS_TIME))
-		return -EPERM;
-	return 0;
-}
-
-static int dummy_vm_enough_memory(struct mm_struct *mm, long pages)
-{
-	int cap_sys_admin = 0;
-
-	if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
-		cap_sys_admin = 1;
-	return __vm_enough_memory(mm, pages, cap_sys_admin);
-}
-
-static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
-{
-	return 0;
-}
-
-static void dummy_bprm_free_security (struct linux_binprm *bprm)
-{
-	return;
-}
-
-static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
-{
-	if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
-		set_dumpable(current->mm, suid_dumpable);
-
-		if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
-			bprm->e_uid = current->uid;
-			bprm->e_gid = current->gid;
-		}
-	}
-
-	current->suid = current->euid = current->fsuid = bprm->e_uid;
-	current->sgid = current->egid = current->fsgid = bprm->e_gid;
-
-	dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
-}
-
-static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
-{
-	return;
-}
-
-static int dummy_bprm_set_security (struct linux_binprm *bprm)
-{
-	return 0;
-}
-
-static int dummy_bprm_check_security (struct linux_binprm *bprm)
-{
-	return 0;
-}
-
-static int dummy_bprm_secureexec (struct linux_binprm *bprm)
-{
-	/* The new userland will simply use the value provided
-	   in the AT_SECURE field to decide whether secure mode
-	   is required.  Hence, this logic is required to preserve
-	   the legacy decision algorithm used by the old userland. */
-	return (current->euid != current->uid ||
-		current->egid != current->gid);
-}
-
-static int dummy_sb_alloc_security (struct super_block *sb)
-{
-	return 0;
-}
-
-static void dummy_sb_free_security (struct super_block *sb)
-{
-	return;
-}
-
-static int dummy_sb_copy_data (char *orig, char *copy)
-{
-	return 0;
-}
-
-static int dummy_sb_kern_mount (struct super_block *sb, void *data)
-{
-	return 0;
-}
-
-static int dummy_sb_show_options(struct seq_file *m, struct super_block *sb)
-{
-	return 0;
-}
-
-static int dummy_sb_statfs (struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_sb_mount (char *dev_name, struct path *path, char *type,
-			   unsigned long flags, void *data)
-{
-	return 0;
-}
-
-static int dummy_sb_check_sb (struct vfsmount *mnt, struct path *path)
-{
-	return 0;
-}
-
-static int dummy_sb_umount (struct vfsmount *mnt, int flags)
-{
-	return 0;
-}
-
-static void dummy_sb_umount_close (struct vfsmount *mnt)
-{
-	return;
-}
-
-static void dummy_sb_umount_busy (struct vfsmount *mnt)
-{
-	return;
-}
-
-static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags,
-				   void *data)
-{
-	return;
-}
-
-
-static void dummy_sb_post_addmount (struct vfsmount *mnt, struct path *path)
-{
-	return;
-}
-
-static int dummy_sb_pivotroot (struct path *old_path, struct path *new_path)
-{
-	return 0;
-}
-
-static void dummy_sb_post_pivotroot (struct path *old_path, struct path *new_path)
-{
-	return;
-}
-
-static int dummy_sb_set_mnt_opts(struct super_block *sb,
-				 struct security_mnt_opts *opts)
-{
-	if (unlikely(opts->num_mnt_opts))
-		return -EOPNOTSUPP;
-	return 0;
-}
-
-static void dummy_sb_clone_mnt_opts(const struct super_block *oldsb,
-				    struct super_block *newsb)
-{
-	return;
-}
-
-static int dummy_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
-{
-	return 0;
-}
-
-static int dummy_inode_alloc_security (struct inode *inode)
-{
-	return 0;
-}
-
-static void dummy_inode_free_security (struct inode *inode)
-{
-	return;
-}
-
-static int dummy_inode_init_security (struct inode *inode, struct inode *dir,
-				      char **name, void **value, size_t *len)
-{
-	return -EOPNOTSUPP;
-}
-
-static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
-			       int mask)
-{
-	return 0;
-}
-
-static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
-			     struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry,
-				const char *name)
-{
-	return 0;
-}
-
-static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
-			      int mask)
-{
-	return 0;
-}
-
-static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry,
-			      int mode, dev_t dev)
-{
-	return 0;
-}
-
-static int dummy_inode_rename (struct inode *old_inode,
-			       struct dentry *old_dentry,
-			       struct inode *new_inode,
-			       struct dentry *new_dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_readlink (struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_follow_link (struct dentry *dentry,
-				    struct nameidata *nameidata)
-{
-	return 0;
-}
-
-static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd)
-{
-	return 0;
-}
-
-static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr)
-{
-	return 0;
-}
-
-static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry)
-{
-	return 0;
-}
-
-static void dummy_inode_delete (struct inode *ino)
-{
-	return;
-}
-
-static int dummy_inode_setxattr (struct dentry *dentry, const char *name,
-				 const void *value, size_t size, int flags)
-{
-	if (!strncmp(name, XATTR_SECURITY_PREFIX,
-		     sizeof(XATTR_SECURITY_PREFIX) - 1) &&
-	    !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	return 0;
-}
-
-static void dummy_inode_post_setxattr (struct dentry *dentry, const char *name,
-				       const void *value, size_t size,
-				       int flags)
-{
-}
-
-static int dummy_inode_getxattr (struct dentry *dentry, const char *name)
-{
-	return 0;
-}
-
-static int dummy_inode_listxattr (struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_removexattr (struct dentry *dentry, const char *name)
-{
-	if (!strncmp(name, XATTR_SECURITY_PREFIX,
-		     sizeof(XATTR_SECURITY_PREFIX) - 1) &&
-	    !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	return 0;
-}
-
-static int dummy_inode_need_killpriv(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_killpriv(struct dentry *dentry)
-{
-	return 0;
-}
-
-static int dummy_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
-{
-	return -EOPNOTSUPP;
-}
-
-static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
-{
-	return -EOPNOTSUPP;
-}
-
-static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
-{
-	return 0;
-}
-
-static void dummy_inode_getsecid(const struct inode *inode, u32 *secid)
-{
-	*secid = 0;
-}
-
-static int dummy_file_permission (struct file *file, int mask)
-{
-	return 0;
-}
-
-static int dummy_file_alloc_security (struct file *file)
-{
-	return 0;
-}
-
-static void dummy_file_free_security (struct file *file)
-{
-	return;
-}
-
-static int dummy_file_ioctl (struct file *file, unsigned int command,
-			     unsigned long arg)
-{
-	return 0;
-}
-
-static int dummy_file_mmap (struct file *file, unsigned long reqprot,
-			    unsigned long prot,
-			    unsigned long flags,
-			    unsigned long addr,
-			    unsigned long addr_only)
-{
-	if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
-		return -EACCES;
-	return 0;
-}
-
-static int dummy_file_mprotect (struct vm_area_struct *vma,
-				unsigned long reqprot,
-				unsigned long prot)
-{
-	return 0;
-}
-
-static int dummy_file_lock (struct file *file, unsigned int cmd)
-{
-	return 0;
-}
-
-static int dummy_file_fcntl (struct file *file, unsigned int cmd,
-			     unsigned long arg)
-{
-	return 0;
-}
-
-static int dummy_file_set_fowner (struct file *file)
-{
-	return 0;
-}
-
-static int dummy_file_send_sigiotask (struct task_struct *tsk,
-				      struct fown_struct *fown, int sig)
-{
-	return 0;
-}
-
-static int dummy_file_receive (struct file *file)
-{
-	return 0;
-}
-
-static int dummy_dentry_open (struct file *file)
-{
-	return 0;
-}
-
-static int dummy_task_create (unsigned long clone_flags)
-{
-	return 0;
-}
-
-static int dummy_task_alloc_security (struct task_struct *p)
-{
-	return 0;
-}
-
-static void dummy_task_free_security (struct task_struct *p)
-{
-	return;
-}
-
-static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
-{
-	return 0;
-}
-
-static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
-{
-	dummy_capget(current, &current->cap_effective, &current->cap_inheritable, &current->cap_permitted);
-	return 0;
-}
-
-static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags)
-{
-	return 0;
-}
-
-static int dummy_task_setpgid (struct task_struct *p, pid_t pgid)
-{
-	return 0;
-}
-
-static int dummy_task_getpgid (struct task_struct *p)
-{
-	return 0;
-}
-
-static int dummy_task_getsid (struct task_struct *p)
-{
-	return 0;
-}
-
-static void dummy_task_getsecid (struct task_struct *p, u32 *secid)
-{
-	*secid = 0;
-}
-
-static int dummy_task_setgroups (struct group_info *group_info)
-{
-	return 0;
-}
-
-static int dummy_task_setnice (struct task_struct *p, int nice)
-{
-	return 0;
-}
-
-static int dummy_task_setioprio (struct task_struct *p, int ioprio)
-{
-	return 0;
-}
-
-static int dummy_task_getioprio (struct task_struct *p)
-{
-	return 0;
-}
-
-static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim)
-{
-	return 0;
-}
-
-static int dummy_task_setscheduler (struct task_struct *p, int policy,
-				    struct sched_param *lp)
-{
-	return 0;
-}
-
-static int dummy_task_getscheduler (struct task_struct *p)
-{
-	return 0;
-}
-
-static int dummy_task_movememory (struct task_struct *p)
-{
-	return 0;
-}
-
-static int dummy_task_wait (struct task_struct *p)
-{
-	return 0;
-}
-
-static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
-			    int sig, u32 secid)
-{
-	return 0;
-}
-
-static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
-			     unsigned long arg4, unsigned long arg5, long *rc_p)
-{
-	switch (option) {
-	case PR_CAPBSET_READ:
-		*rc_p = (cap_valid(arg2) ? 1 : -EINVAL);
-		break;
-	case PR_GET_KEEPCAPS:
-		*rc_p = issecure(SECURE_KEEP_CAPS);
-		break;
-	case PR_SET_KEEPCAPS:
-		if (arg2 > 1)
-			*rc_p = -EINVAL;
-		else if (arg2)
-			current->securebits |= issecure_mask(SECURE_KEEP_CAPS);
-		else
-			current->securebits &=
-				~issecure_mask(SECURE_KEEP_CAPS);
-		break;
-	default:
-		return 0;
-	}
-
-	return 1;
-}
-
-static void dummy_task_reparent_to_init (struct task_struct *p)
-{
-	p->euid = p->fsuid = 0;
-	return;
-}
-
-static void dummy_task_to_inode(struct task_struct *p, struct inode *inode)
-{ }
-
-static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag)
-{
-	return 0;
-}
-
-static void dummy_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
-{
-	*secid = 0;
-}
-
-static int dummy_msg_msg_alloc_security (struct msg_msg *msg)
-{
-	return 0;
-}
-
-static void dummy_msg_msg_free_security (struct msg_msg *msg)
-{
-	return;
-}
-
-static int dummy_msg_queue_alloc_security (struct msg_queue *msq)
-{
-	return 0;
-}
-
-static void dummy_msg_queue_free_security (struct msg_queue *msq)
-{
-	return;
-}
-
-static int dummy_msg_queue_associate (struct msg_queue *msq, 
-				      int msqflg)
-{
-	return 0;
-}
-
-static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd)
-{
-	return 0;
-}
-
-static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg,
-				   int msgflg)
-{
-	return 0;
-}
-
-static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg,
-				   struct task_struct *target, long type,
-				   int mode)
-{
-	return 0;
-}
-
-static int dummy_shm_alloc_security (struct shmid_kernel *shp)
-{
-	return 0;
-}
-
-static void dummy_shm_free_security (struct shmid_kernel *shp)
-{
-	return;
-}
-
-static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg)
-{
-	return 0;
-}
-
-static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd)
-{
-	return 0;
-}
-
-static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr,
-			    int shmflg)
-{
-	return 0;
-}
-
-static int dummy_sem_alloc_security (struct sem_array *sma)
-{
-	return 0;
-}
-
-static void dummy_sem_free_security (struct sem_array *sma)
-{
-	return;
-}
-
-static int dummy_sem_associate (struct sem_array *sma, int semflg)
-{
-	return 0;
-}
-
-static int dummy_sem_semctl (struct sem_array *sma, int cmd)
-{
-	return 0;
-}
-
-static int dummy_sem_semop (struct sem_array *sma, 
-			    struct sembuf *sops, unsigned nsops, int alter)
-{
-	return 0;
-}
-
-static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
-{
-	NETLINK_CB(skb).eff_cap = current->cap_effective;
-	return 0;
-}
-
-static int dummy_netlink_recv (struct sk_buff *skb, int cap)
-{
-	if (!cap_raised (NETLINK_CB (skb).eff_cap, cap))
-		return -EPERM;
-	return 0;
-}
-
-#ifdef CONFIG_SECURITY_NETWORK
-static int dummy_unix_stream_connect (struct socket *sock,
-				      struct socket *other,
-				      struct sock *newsk)
-{
-	return 0;
-}
-
-static int dummy_unix_may_send (struct socket *sock,
-				struct socket *other)
-{
-	return 0;
-}
-
-static int dummy_socket_create (int family, int type,
-				int protocol, int kern)
-{
-	return 0;
-}
-
-static int dummy_socket_post_create (struct socket *sock, int family, int type,
-				     int protocol, int kern)
-{
-	return 0;
-}
-
-static int dummy_socket_bind (struct socket *sock, struct sockaddr *address,
-			      int addrlen)
-{
-	return 0;
-}
-
-static int dummy_socket_connect (struct socket *sock, struct sockaddr *address,
-				 int addrlen)
-{
-	return 0;
-}
-
-static int dummy_socket_listen (struct socket *sock, int backlog)
-{
-	return 0;
-}
-
-static int dummy_socket_accept (struct socket *sock, struct socket *newsock)
-{
-	return 0;
-}
-
-static void dummy_socket_post_accept (struct socket *sock, 
-				      struct socket *newsock)
-{
-	return;
-}
-
-static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg,
-				 int size)
-{
-	return 0;
-}
-
-static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg,
-				 int size, int flags)
-{
-	return 0;
-}
-
-static int dummy_socket_getsockname (struct socket *sock)
-{
-	return 0;
-}
-
-static int dummy_socket_getpeername (struct socket *sock)
-{
-	return 0;
-}
-
-static int dummy_socket_setsockopt (struct socket *sock, int level, int optname)
-{
-	return 0;
-}
-
-static int dummy_socket_getsockopt (struct socket *sock, int level, int optname)
-{
-	return 0;
-}
-
-static int dummy_socket_shutdown (struct socket *sock, int how)
-{
-	return 0;
-}
-
-static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb)
-{
-	return 0;
-}
-
-static int dummy_socket_getpeersec_stream(struct socket *sock, char __user *optval,
-					  int __user *optlen, unsigned len)
-{
-	return -ENOPROTOOPT;
-}
-
-static int dummy_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
-{
-	return -ENOPROTOOPT;
-}
-
-static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority)
-{
-	return 0;
-}
-
-static inline void dummy_sk_free_security (struct sock *sk)
-{
-}
-
-static inline void dummy_sk_clone_security (const struct sock *sk, struct sock *newsk)
-{
-}
-
-static inline void dummy_sk_getsecid(struct sock *sk, u32 *secid)
-{
-}
-
-static inline void dummy_sock_graft(struct sock* sk, struct socket *parent)
-{
-}
-
-static inline int dummy_inet_conn_request(struct sock *sk,
-			struct sk_buff *skb, struct request_sock *req)
-{
-	return 0;
-}
-
-static inline void dummy_inet_csk_clone(struct sock *newsk,
-			const struct request_sock *req)
-{
-}
-
-static inline void dummy_inet_conn_established(struct sock *sk,
-			struct sk_buff *skb)
-{
-}
-
-static inline void dummy_req_classify_flow(const struct request_sock *req,
-			struct flowi *fl)
-{
-}
-#endif	/* CONFIG_SECURITY_NETWORK */
-
-#ifdef CONFIG_SECURITY_NETWORK_XFRM
-static int dummy_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
-					    struct xfrm_user_sec_ctx *sec_ctx)
-{
-	return 0;
-}
-
-static inline int dummy_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
-					   struct xfrm_sec_ctx **new_ctxp)
-{
-	return 0;
-}
-
-static void dummy_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
-{
-}
-
-static int dummy_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
-{
-	return 0;
-}
-
-static int dummy_xfrm_state_alloc_security(struct xfrm_state *x,
-	struct xfrm_user_sec_ctx *sec_ctx, u32 secid)
-{
-	return 0;
-}
-
-static void dummy_xfrm_state_free_security(struct xfrm_state *x)
-{
-}
-
-static int dummy_xfrm_state_delete_security(struct xfrm_state *x)
-{
-	return 0;
-}
-
-static int dummy_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx,
-				    u32 sk_sid, u8 dir)
-{
-	return 0;
-}
-
-static int dummy_xfrm_state_pol_flow_match(struct xfrm_state *x,
-				struct xfrm_policy *xp, struct flowi *fl)
-{
-	return 1;
-}
-
-static int dummy_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
-{
-	return 0;
-}
-
-#endif /* CONFIG_SECURITY_NETWORK_XFRM */
-static int dummy_register_security (const char *name, struct security_operations *ops)
-{
-	return -EINVAL;
-}
-
-static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode)
-{
-	return;
-}
-
-static int dummy_getprocattr(struct task_struct *p, char *name, char **value)
-{
-	return -EINVAL;
-}
-
-static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
-{
-	return -EINVAL;
-}
-
-static int dummy_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
-{
-	return -EOPNOTSUPP;
-}
-
-static int dummy_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
-{
-	return -EOPNOTSUPP;
-}
-
-static void dummy_release_secctx(char *secdata, u32 seclen)
-{
-}
-
-#ifdef CONFIG_KEYS
-static inline int dummy_key_alloc(struct key *key, struct task_struct *ctx,
-				  unsigned long flags)
-{
-	return 0;
-}
-
-static inline void dummy_key_free(struct key *key)
-{
-}
-
-static inline int dummy_key_permission(key_ref_t key_ref,
-				       struct task_struct *context,
-				       key_perm_t perm)
-{
-	return 0;
-}
-
-static int dummy_key_getsecurity(struct key *key, char **_buffer)
-{
-	*_buffer = NULL;
-	return 0;
-}
-
-#endif /* CONFIG_KEYS */
-
-#ifdef CONFIG_AUDIT
-static inline int dummy_audit_rule_init(u32 field, u32 op, char *rulestr,
-					void **lsmrule)
-{
-	return 0;
-}
-
-static inline int dummy_audit_rule_known(struct audit_krule *krule)
-{
-	return 0;
-}
-
-static inline int dummy_audit_rule_match(u32 secid, u32 field, u32 op,
-					 void *lsmrule,
-					 struct audit_context *actx)
-{
-	return 0;
-}
-
-static inline void dummy_audit_rule_free(void *lsmrule)
-{ }
-
-#endif /* CONFIG_AUDIT */
-
-struct security_operations dummy_security_ops = {
-	.name = "dummy",
-};
-
-#define set_to_dummy_if_null(ops, function)				\
-	do {								\
-		if (!ops->function) {					\
-			ops->function = dummy_##function;		\
-			pr_debug("Had to override the " #function	\
-				 " security operation with the dummy one.\n");\
-			}						\
-	} while (0)
-
-void security_fixup_ops (struct security_operations *ops)
-{
-	set_to_dummy_if_null(ops, ptrace);
-	set_to_dummy_if_null(ops, capget);
-	set_to_dummy_if_null(ops, capset_check);
-	set_to_dummy_if_null(ops, capset_set);
-	set_to_dummy_if_null(ops, acct);
-	set_to_dummy_if_null(ops, capable);
-	set_to_dummy_if_null(ops, quotactl);
-	set_to_dummy_if_null(ops, quota_on);
-	set_to_dummy_if_null(ops, sysctl);
-	set_to_dummy_if_null(ops, syslog);
-	set_to_dummy_if_null(ops, settime);
-	set_to_dummy_if_null(ops, vm_enough_memory);
-	set_to_dummy_if_null(ops, bprm_alloc_security);
-	set_to_dummy_if_null(ops, bprm_free_security);
-	set_to_dummy_if_null(ops, bprm_apply_creds);
-	set_to_dummy_if_null(ops, bprm_post_apply_creds);
-	set_to_dummy_if_null(ops, bprm_set_security);
-	set_to_dummy_if_null(ops, bprm_check_security);
-	set_to_dummy_if_null(ops, bprm_secureexec);
-	set_to_dummy_if_null(ops, sb_alloc_security);
-	set_to_dummy_if_null(ops, sb_free_security);
-	set_to_dummy_if_null(ops, sb_copy_data);
-	set_to_dummy_if_null(ops, sb_kern_mount);
-	set_to_dummy_if_null(ops, sb_show_options);
-	set_to_dummy_if_null(ops, sb_statfs);
-	set_to_dummy_if_null(ops, sb_mount);
-	set_to_dummy_if_null(ops, sb_check_sb);
-	set_to_dummy_if_null(ops, sb_umount);
-	set_to_dummy_if_null(ops, sb_umount_close);
-	set_to_dummy_if_null(ops, sb_umount_busy);
-	set_to_dummy_if_null(ops, sb_post_remount);
-	set_to_dummy_if_null(ops, sb_post_addmount);
-	set_to_dummy_if_null(ops, sb_pivotroot);
-	set_to_dummy_if_null(ops, sb_post_pivotroot);
-	set_to_dummy_if_null(ops, sb_set_mnt_opts);
-	set_to_dummy_if_null(ops, sb_clone_mnt_opts);
-	set_to_dummy_if_null(ops, sb_parse_opts_str);
-	set_to_dummy_if_null(ops, inode_alloc_security);
-	set_to_dummy_if_null(ops, inode_free_security);
-	set_to_dummy_if_null(ops, inode_init_security);
-	set_to_dummy_if_null(ops, inode_create);
-	set_to_dummy_if_null(ops, inode_link);
-	set_to_dummy_if_null(ops, inode_unlink);
-	set_to_dummy_if_null(ops, inode_symlink);
-	set_to_dummy_if_null(ops, inode_mkdir);
-	set_to_dummy_if_null(ops, inode_rmdir);
-	set_to_dummy_if_null(ops, inode_mknod);
-	set_to_dummy_if_null(ops, inode_rename);
-	set_to_dummy_if_null(ops, inode_readlink);
-	set_to_dummy_if_null(ops, inode_follow_link);
-	set_to_dummy_if_null(ops, inode_permission);
-	set_to_dummy_if_null(ops, inode_setattr);
-	set_to_dummy_if_null(ops, inode_getattr);
-	set_to_dummy_if_null(ops, inode_delete);
-	set_to_dummy_if_null(ops, inode_setxattr);
-	set_to_dummy_if_null(ops, inode_post_setxattr);
-	set_to_dummy_if_null(ops, inode_getxattr);
-	set_to_dummy_if_null(ops, inode_listxattr);
-	set_to_dummy_if_null(ops, inode_removexattr);
-	set_to_dummy_if_null(ops, inode_need_killpriv);
-	set_to_dummy_if_null(ops, inode_killpriv);
-	set_to_dummy_if_null(ops, inode_getsecurity);
-	set_to_dummy_if_null(ops, inode_setsecurity);
-	set_to_dummy_if_null(ops, inode_listsecurity);
-	set_to_dummy_if_null(ops, inode_getsecid);
-	set_to_dummy_if_null(ops, file_permission);
-	set_to_dummy_if_null(ops, file_alloc_security);
-	set_to_dummy_if_null(ops, file_free_security);
-	set_to_dummy_if_null(ops, file_ioctl);
-	set_to_dummy_if_null(ops, file_mmap);
-	set_to_dummy_if_null(ops, file_mprotect);
-	set_to_dummy_if_null(ops, file_lock);
-	set_to_dummy_if_null(ops, file_fcntl);
-	set_to_dummy_if_null(ops, file_set_fowner);
-	set_to_dummy_if_null(ops, file_send_sigiotask);
-	set_to_dummy_if_null(ops, file_receive);
-	set_to_dummy_if_null(ops, dentry_open);
-	set_to_dummy_if_null(ops, task_create);
-	set_to_dummy_if_null(ops, task_alloc_security);
-	set_to_dummy_if_null(ops, task_free_security);
-	set_to_dummy_if_null(ops, task_setuid);
-	set_to_dummy_if_null(ops, task_post_setuid);
-	set_to_dummy_if_null(ops, task_setgid);
-	set_to_dummy_if_null(ops, task_setpgid);
-	set_to_dummy_if_null(ops, task_getpgid);
-	set_to_dummy_if_null(ops, task_getsid);
-	set_to_dummy_if_null(ops, task_getsecid);
-	set_to_dummy_if_null(ops, task_setgroups);
-	set_to_dummy_if_null(ops, task_setnice);
-	set_to_dummy_if_null(ops, task_setioprio);
-	set_to_dummy_if_null(ops, task_getioprio);
-	set_to_dummy_if_null(ops, task_setrlimit);
-	set_to_dummy_if_null(ops, task_setscheduler);
-	set_to_dummy_if_null(ops, task_getscheduler);
-	set_to_dummy_if_null(ops, task_movememory);
-	set_to_dummy_if_null(ops, task_wait);
-	set_to_dummy_if_null(ops, task_kill);
-	set_to_dummy_if_null(ops, task_prctl);
-	set_to_dummy_if_null(ops, task_reparent_to_init);
- 	set_to_dummy_if_null(ops, task_to_inode);
-	set_to_dummy_if_null(ops, ipc_permission);
-	set_to_dummy_if_null(ops, ipc_getsecid);
-	set_to_dummy_if_null(ops, msg_msg_alloc_security);
-	set_to_dummy_if_null(ops, msg_msg_free_security);
-	set_to_dummy_if_null(ops, msg_queue_alloc_security);
-	set_to_dummy_if_null(ops, msg_queue_free_security);
-	set_to_dummy_if_null(ops, msg_queue_associate);
-	set_to_dummy_if_null(ops, msg_queue_msgctl);
-	set_to_dummy_if_null(ops, msg_queue_msgsnd);
-	set_to_dummy_if_null(ops, msg_queue_msgrcv);
-	set_to_dummy_if_null(ops, shm_alloc_security);
-	set_to_dummy_if_null(ops, shm_free_security);
-	set_to_dummy_if_null(ops, shm_associate);
-	set_to_dummy_if_null(ops, shm_shmctl);
-	set_to_dummy_if_null(ops, shm_shmat);
-	set_to_dummy_if_null(ops, sem_alloc_security);
-	set_to_dummy_if_null(ops, sem_free_security);
-	set_to_dummy_if_null(ops, sem_associate);
-	set_to_dummy_if_null(ops, sem_semctl);
-	set_to_dummy_if_null(ops, sem_semop);
-	set_to_dummy_if_null(ops, netlink_send);
-	set_to_dummy_if_null(ops, netlink_recv);
-	set_to_dummy_if_null(ops, register_security);
-	set_to_dummy_if_null(ops, d_instantiate);
- 	set_to_dummy_if_null(ops, getprocattr);
- 	set_to_dummy_if_null(ops, setprocattr);
- 	set_to_dummy_if_null(ops, secid_to_secctx);
-	set_to_dummy_if_null(ops, secctx_to_secid);
- 	set_to_dummy_if_null(ops, release_secctx);
-#ifdef CONFIG_SECURITY_NETWORK
-	set_to_dummy_if_null(ops, unix_stream_connect);
-	set_to_dummy_if_null(ops, unix_may_send);
-	set_to_dummy_if_null(ops, socket_create);
-	set_to_dummy_if_null(ops, socket_post_create);
-	set_to_dummy_if_null(ops, socket_bind);
-	set_to_dummy_if_null(ops, socket_connect);
-	set_to_dummy_if_null(ops, socket_listen);
-	set_to_dummy_if_null(ops, socket_accept);
-	set_to_dummy_if_null(ops, socket_post_accept);
-	set_to_dummy_if_null(ops, socket_sendmsg);
-	set_to_dummy_if_null(ops, socket_recvmsg);
-	set_to_dummy_if_null(ops, socket_getsockname);
-	set_to_dummy_if_null(ops, socket_getpeername);
-	set_to_dummy_if_null(ops, socket_setsockopt);
-	set_to_dummy_if_null(ops, socket_getsockopt);
-	set_to_dummy_if_null(ops, socket_shutdown);
-	set_to_dummy_if_null(ops, socket_sock_rcv_skb);
-	set_to_dummy_if_null(ops, socket_getpeersec_stream);
-	set_to_dummy_if_null(ops, socket_getpeersec_dgram);
-	set_to_dummy_if_null(ops, sk_alloc_security);
-	set_to_dummy_if_null(ops, sk_free_security);
-	set_to_dummy_if_null(ops, sk_clone_security);
-	set_to_dummy_if_null(ops, sk_getsecid);
-	set_to_dummy_if_null(ops, sock_graft);
-	set_to_dummy_if_null(ops, inet_conn_request);
-	set_to_dummy_if_null(ops, inet_csk_clone);
-	set_to_dummy_if_null(ops, inet_conn_established);
-	set_to_dummy_if_null(ops, req_classify_flow);
- #endif	/* CONFIG_SECURITY_NETWORK */
-#ifdef  CONFIG_SECURITY_NETWORK_XFRM
-	set_to_dummy_if_null(ops, xfrm_policy_alloc_security);
-	set_to_dummy_if_null(ops, xfrm_policy_clone_security);
-	set_to_dummy_if_null(ops, xfrm_policy_free_security);
-	set_to_dummy_if_null(ops, xfrm_policy_delete_security);
-	set_to_dummy_if_null(ops, xfrm_state_alloc_security);
-	set_to_dummy_if_null(ops, xfrm_state_free_security);
-	set_to_dummy_if_null(ops, xfrm_state_delete_security);
-	set_to_dummy_if_null(ops, xfrm_policy_lookup);
-	set_to_dummy_if_null(ops, xfrm_state_pol_flow_match);
-	set_to_dummy_if_null(ops, xfrm_decode_session);
-#endif	/* CONFIG_SECURITY_NETWORK_XFRM */
-#ifdef CONFIG_KEYS
-	set_to_dummy_if_null(ops, key_alloc);
-	set_to_dummy_if_null(ops, key_free);
-	set_to_dummy_if_null(ops, key_permission);
-	set_to_dummy_if_null(ops, key_getsecurity);
-#endif	/* CONFIG_KEYS */
-#ifdef CONFIG_AUDIT
-	set_to_dummy_if_null(ops, audit_rule_init);
-	set_to_dummy_if_null(ops, audit_rule_known);
-	set_to_dummy_if_null(ops, audit_rule_match);
-	set_to_dummy_if_null(ops, audit_rule_free);
-#endif
-}
-

security/security.c

@@ -20,8 +20,8 @@
 /* Boot-time LSM user choice */
 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
 
-/* things that live in dummy.c */
-extern struct security_operations dummy_security_ops;
+/* things that live in capability.c */
+extern struct security_operations default_security_ops;
 extern void security_fixup_ops(struct security_operations *ops);
 
 struct security_operations *security_ops;	/* Initialized to NULL */
@@ -57,13 +57,8 @@ int __init security_init(void)
 {
 	printk(KERN_INFO "Security Framework initialized\n");
 
-	if (verify(&dummy_security_ops)) {
-		printk(KERN_ERR "%s could not verify "
-		       "dummy_security_ops structure.\n", __func__);
-		return -EIO;
-	}
-
-	security_ops = &dummy_security_ops;
+	security_fixup_ops(&default_security_ops);
+	security_ops = &default_security_ops;
 	do_security_initcalls();
 
 	return 0;
@@ -122,7 +117,7 @@ int register_security(struct security_operations *ops)
 		return -EINVAL;
 	}
 
-	if (security_ops != &dummy_security_ops)
+	if (security_ops != &default_security_ops)
 		return -EAGAIN;
 
 	security_ops = ops;