Cross-Referenced Linux and Device Driver Code

   /*
    * 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/config.h>
  #include <linux/module.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>
  
  static int dummy_ptrace (struct task_struct *parent, struct task_struct *child)
  {
          return 0;
  }
  
  static int dummy_capget (struct task_struct *target, kernel_cap_t * effective,
                           kernel_cap_t * inheritable, kernel_cap_t * permitted)
  {
          *effective = *inheritable = *permitted = 0;
          if (!issecure(SECURE_NOROOT)) {
                  if (target->euid == 0) {
                          *permitted |= (~0 & ~CAP_FS_MASK);
                          *effective |= (~0 & ~CAP_TO_MASK(CAP_SETPCAP) & ~CAP_FS_MASK);
                  }
                  if (target->fsuid == 0) {
                          *permitted |= CAP_FS_MASK;
                          *effective |= CAP_FS_MASK;
                  }
          }
          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(long pages)
 {
         int cap_sys_admin = 0;
 
         if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
                 cap_sys_admin = 1;
         return __vm_enough_memory(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) {
                 current->mm->dumpable = 0;
 
                 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 (struct file_system_type *type,
                                void *orig, void *copy)
 {
         return 0;
 }
 
 static int dummy_sb_kern_mount (struct super_block *sb, void *data)
 {
         return 0;
 }
 
 static int dummy_sb_statfs (struct super_block *sb)
 {
         return 0;
 }
 
 static int dummy_sb_mount (char *dev_name, struct nameidata *nd, char *type,
                            unsigned long flags, void *data)
 {
         return 0;
 }
 
 static int dummy_sb_check_sb (struct vfsmount *mnt, struct nameidata *nd)
 {
         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_mountroot (void)
 {
         return;
 }
 
 static void dummy_sb_post_addmount (struct vfsmount *mnt, struct nameidata *nd)
 {
         return;
 }
 
 static int dummy_sb_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 {
         return 0;
 }
 
 static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd)
 {
         return;
 }
 
 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_create (struct inode *inode, struct dentry *dentry,
                                int mask)
 {
         return 0;
 }
 
 static void dummy_inode_post_create (struct inode *inode, struct dentry *dentry,
                                      int mask)
 {
         return;
 }
 
 static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
                              struct dentry *new_dentry)
 {
         return 0;
 }
 
 static void dummy_inode_post_link (struct dentry *old_dentry,
                                    struct inode *inode,
                                    struct dentry *new_dentry)
 {
         return;
 }
 
 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 void dummy_inode_post_symlink (struct inode *inode,
                                       struct dentry *dentry, const char *name)
 {
         return;
 }
 
 static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
                               int mask)
 {
         return 0;
 }
 
 static void dummy_inode_post_mkdir (struct inode *inode, struct dentry *dentry,
                                     int mask)
 {
         return;
 }
 
 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 void dummy_inode_post_mknod (struct inode *inode, struct dentry *dentry,
                                     int mode, dev_t dev)
 {
         return;
 }
 
 static int dummy_inode_rename (struct inode *old_inode,
                                struct dentry *old_dentry,
                                struct inode *new_inode,
                                struct dentry *new_dentry)
 {
         return 0;
 }
 
 static void dummy_inode_post_rename (struct inode *old_inode,
                                      struct dentry *old_dentry,
                                      struct inode *new_inode,
                                      struct dentry *new_dentry)
 {
         return;
 }
 
 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, char *name, 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, char *name, void *value,
                                        size_t size, int flags)
 {
 }
 
 static int dummy_inode_getxattr (struct dentry *dentry, char *name)
 {
         return 0;
 }
 
 static int dummy_inode_listxattr (struct dentry *dentry)
 {
         return 0;
 }
 
 static int dummy_inode_removexattr (struct dentry *dentry, 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_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
 {
         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 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 prot,
                             unsigned long flags)
 {
         return 0;
 }
 
 static int dummy_file_mprotect (struct vm_area_struct *vma, 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_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 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_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_wait (struct task_struct *p)
 {
         return 0;
 }
 
 static int dummy_task_kill (struct task_struct *p, struct siginfo *info,
                             int sig)
 {
         return 0;
 }
 
 static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3,
                              unsigned long arg4, unsigned long arg5)
 {
         return 0;
 }
 
 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 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)
 {
         if (!cap_raised (NETLINK_CB (skb).eff_cap, CAP_NET_ADMIN))
                 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 void dummy_socket_post_create (struct socket *sock, int family, int type,
                                       int protocol, int kern)
 {
         return;
 }
 
 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(struct socket *sock, char __user *optval,
                                    int __user *optlen, unsigned len)
 {
         return -ENOPROTOOPT;
 }
 
 static inline int dummy_sk_alloc_security (struct sock *sk, int family, int priority)
 {
         return 0;
 }
 
 static inline void dummy_sk_free_security (struct sock *sk)
 {
 }
 #endif  /* CONFIG_SECURITY_NETWORK */
 
 static int dummy_register_security (const char *name, struct security_operations *ops)
 {
         return -EINVAL;
 }
 
 static int dummy_unregister_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, void *value, size_t size)
 {
         return -EINVAL;
 }
 
 static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 {
         return -EINVAL;
 }
 
 
 struct security_operations dummy_security_ops;
 
 #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_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_mountroot);
         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, inode_alloc_security);
         set_to_dummy_if_null(ops, inode_free_security);
         set_to_dummy_if_null(ops, inode_create);
         set_to_dummy_if_null(ops, inode_post_create);
         set_to_dummy_if_null(ops, inode_link);
         set_to_dummy_if_null(ops, inode_post_link);
         set_to_dummy_if_null(ops, inode_unlink);
         set_to_dummy_if_null(ops, inode_symlink);
         set_to_dummy_if_null(ops, inode_post_symlink);
         set_to_dummy_if_null(ops, inode_mkdir);
         set_to_dummy_if_null(ops, inode_post_mkdir);
         set_to_dummy_if_null(ops, inode_rmdir);
         set_to_dummy_if_null(ops, inode_mknod);
         set_to_dummy_if_null(ops, inode_post_mknod);
         set_to_dummy_if_null(ops, inode_rename);
         set_to_dummy_if_null(ops, inode_post_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_getsecurity);
         set_to_dummy_if_null(ops, inode_setsecurity);
         set_to_dummy_if_null(ops, inode_listsecurity);
         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, 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_setgroups);
         set_to_dummy_if_null(ops, task_setnice);
         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_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, 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, unregister_security);
         set_to_dummy_if_null(ops, d_instantiate);
         set_to_dummy_if_null(ops, getprocattr);
         set_to_dummy_if_null(ops, setprocattr);
 #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);
         set_to_dummy_if_null(ops, sk_alloc_security);
         set_to_dummy_if_null(ops, sk_free_security);
 #endif  /* CONFIG_SECURITY_NETWORK */
 }