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d84f4f992c
linux/security/capability.c
David Howells d84f4f992c CRED: Inaugurate COW credentials 
Inaugurate copy-on-write credentials management.  This uses RCU to manage the
credentials pointer in the task_struct with respect to accesses by other tasks.
A process may only modify its own credentials, and so does not need locking to
access or modify its own credentials.

A mutex (cred_replace_mutex) is added to the task_struct to control the effect
of PTRACE_ATTACHED on credential calculations, particularly with respect to
execve().

With this patch, the contents of an active credentials struct may not be
changed directly; rather a new set of credentials must be prepared, modified
and committed using something like the following sequence of events:

	struct cred *new = prepare_creds();
	int ret = blah(new);
	if (ret < 0) {
		abort_creds(new);
		return ret;
	}
	return commit_creds(new);

There are some exceptions to this rule: the keyrings pointed to by the active
credentials may be instantiated - keyrings violate the COW rule as managing
COW keyrings is tricky, given that it is possible for a task to directly alter
the keys in a keyring in use by another task.

To help enforce this, various pointers to sets of credentials, such as those in
the task_struct, are declared const.  The purpose of this is compile-time
discouragement of altering credentials through those pointers.  Once a set of
credentials has been made public through one of these pointers, it may not be
modified, except under special circumstances:

  (1) Its reference count may incremented and decremented.

  (2) The keyrings to which it points may be modified, but not replaced.

The only safe way to modify anything else is to create a replacement and commit
using the functions described in Documentation/credentials.txt (which will be
added by a later patch).

This patch and the preceding patches have been tested with the LTP SELinux
testsuite.

This patch makes several logical sets of alteration:

 (1) execve().

     This now prepares and commits credentials in various places in the
     security code rather than altering the current creds directly.

 (2) Temporary credential overrides.

     do_coredump() and sys_faccessat() now prepare their own credentials and
     temporarily override the ones currently on the acting thread, whilst
     preventing interference from other threads by holding cred_replace_mutex
     on the thread being dumped.

     This will be replaced in a future patch by something that hands down the
     credentials directly to the functions being called, rather than altering
     the task's objective credentials.

 (3) LSM interface.

     A number of functions have been changed, added or removed:

     (*) security_capset_check(), ->capset_check()
     (*) security_capset_set(), ->capset_set()

     	 Removed in favour of security_capset().

     (*) security_capset(), ->capset()

     	 New.  This is passed a pointer to the new creds, a pointer to the old
     	 creds and the proposed capability sets.  It should fill in the new
     	 creds or return an error.  All pointers, barring the pointer to the
     	 new creds, are now const.

     (*) security_bprm_apply_creds(), ->bprm_apply_creds()

     	 Changed; now returns a value, which will cause the process to be
     	 killed if it's an error.

     (*) security_task_alloc(), ->task_alloc_security()

     	 Removed in favour of security_prepare_creds().

     (*) security_cred_free(), ->cred_free()

     	 New.  Free security data attached to cred->security.

     (*) security_prepare_creds(), ->cred_prepare()

     	 New. Duplicate any security data attached to cred->security.

     (*) security_commit_creds(), ->cred_commit()

     	 New. Apply any security effects for the upcoming installation of new
     	 security by commit_creds().

     (*) security_task_post_setuid(), ->task_post_setuid()

     	 Removed in favour of security_task_fix_setuid().

     (*) security_task_fix_setuid(), ->task_fix_setuid()

     	 Fix up the proposed new credentials for setuid().  This is used by
     	 cap_set_fix_setuid() to implicitly adjust capabilities in line with
     	 setuid() changes.  Changes are made to the new credentials, rather
     	 than the task itself as in security_task_post_setuid().

     (*) security_task_reparent_to_init(), ->task_reparent_to_init()

     	 Removed.  Instead the task being reparented to init is referred
     	 directly to init's credentials.

	 NOTE!  This results in the loss of some state: SELinux's osid no
	 longer records the sid of the thread that forked it.

     (*) security_key_alloc(), ->key_alloc()
     (*) security_key_permission(), ->key_permission()

     	 Changed.  These now take cred pointers rather than task pointers to
     	 refer to the security context.

 (4) sys_capset().

     This has been simplified and uses less locking.  The LSM functions it
     calls have been merged.

 (5) reparent_to_kthreadd().

     This gives the current thread the same credentials as init by simply using
     commit_thread() to point that way.

 (6) __sigqueue_alloc() and switch_uid()

     __sigqueue_alloc() can't stop the target task from changing its creds
     beneath it, so this function gets a reference to the currently applicable
     user_struct which it then passes into the sigqueue struct it returns if
     successful.

     switch_uid() is now called from commit_creds(), and possibly should be
     folded into that.  commit_creds() should take care of protecting
     __sigqueue_alloc().

 (7) [sg]et[ug]id() and co and [sg]et_current_groups.

     The set functions now all use prepare_creds(), commit_creds() and
     abort_creds() to build and check a new set of credentials before applying
     it.

     security_task_set[ug]id() is called inside the prepared section.  This
     guarantees that nothing else will affect the creds until we've finished.

     The calling of set_dumpable() has been moved into commit_creds().

     Much of the functionality of set_user() has been moved into
     commit_creds().

     The get functions all simply access the data directly.

 (8) security_task_prctl() and cap_task_prctl().

     security_task_prctl() has been modified to return -ENOSYS if it doesn't
     want to handle a function, or otherwise return the return value directly
     rather than through an argument.

     Additionally, cap_task_prctl() now prepares a new set of credentials, even
     if it doesn't end up using it.

 (9) Keyrings.

     A number of changes have been made to the keyrings code:

     (a) switch_uid_keyring(), copy_keys(), exit_keys() and suid_keys() have
     	 all been dropped and built in to the credentials functions directly.
     	 They may want separating out again later.

     (b) key_alloc() and search_process_keyrings() now take a cred pointer
     	 rather than a task pointer to specify the security context.

     (c) copy_creds() gives a new thread within the same thread group a new
     	 thread keyring if its parent had one, otherwise it discards the thread
     	 keyring.

     (d) The authorisation key now points directly to the credentials to extend
     	 the search into rather pointing to the task that carries them.

     (e) Installing thread, process or session keyrings causes a new set of
     	 credentials to be created, even though it's not strictly necessary for
     	 process or session keyrings (they're shared).

(10) Usermode helper.

     The usermode helper code now carries a cred struct pointer in its
     subprocess_info struct instead of a new session keyring pointer.  This set
     of credentials is derived from init_cred and installed on the new process
     after it has been cloned.

     call_usermodehelper_setup() allocates the new credentials and
     call_usermodehelper_freeinfo() discards them if they haven't been used.  A
     special cred function (prepare_usermodeinfo_creds()) is provided
     specifically for call_usermodehelper_setup() to call.

     call_usermodehelper_setkeys() adjusts the credentials to sport the
     supplied keyring as the new session keyring.

(11) SELinux.

     SELinux has a number of changes, in addition to those to support the LSM
     interface changes mentioned above:

     (a) selinux_setprocattr() no longer does its check for whether the
     	 current ptracer can access processes with the new SID inside the lock
     	 that covers getting the ptracer's SID.  Whilst this lock ensures that
     	 the check is done with the ptracer pinned, the result is only valid
     	 until the lock is released, so there's no point doing it inside the
     	 lock.

(12) is_single_threaded().

     This function has been extracted from selinux_setprocattr() and put into
     a file of its own in the lib/ directory as join_session_keyring() now
     wants to use it too.

     The code in SELinux just checked to see whether a task shared mm_structs
     with other tasks (CLONE_VM), but that isn't good enough.  We really want
     to know if they're part of the same thread group (CLONE_THREAD).

(13) nfsd.

     The NFS server daemon now has to use the COW credentials to set the
     credentials it is going to use.  It really needs to pass the credentials
     down to the functions it calls, but it can't do that until other patches
     in this series have been applied.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <jmorris@namei.org>
2008-11-14 10:39:23 +11:00

1001 lines
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/*
* 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_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)
{
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, const struct cred *cred)
{
return 0;
}
static int cap_task_create(unsigned long clone_flags)
{
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_commit(struct cred *new, const struct cred *old)
{
}
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 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_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 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, const struct cred *cred,
unsigned long flags)
{
return 0;
}
static void cap_key_free(struct key *key)
{
}
static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
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_may_access);
set_to_cap_if_null(ops, ptrace_traceme);
set_to_cap_if_null(ops, capget);
set_to_cap_if_null(ops, capset);
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, cred_free);
set_to_cap_if_null(ops, cred_prepare);
set_to_cap_if_null(ops, cred_commit);
set_to_cap_if_null(ops, task_setuid);
set_to_cap_if_null(ops, task_fix_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_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, 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
}
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