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TOMOYO Linux Cross Reference
Linux/include/linux/security.h

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  1 /*
  2  * Linux Security plug
  3  *
  4  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
  5  * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
  6  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
  7  * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
  8  * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
  9  * Copyright (C) 2016 Mellanox Techonologies
 10  *
 11  *      This program is free software; you can redistribute it and/or modify
 12  *      it under the terms of the GNU General Public License as published by
 13  *      the Free Software Foundation; either version 2 of the License, or
 14  *      (at your option) any later version.
 15  *
 16  *      Due to this file being licensed under the GPL there is controversy over
 17  *      whether this permits you to write a module that #includes this file
 18  *      without placing your module under the GPL.  Please consult a lawyer for
 19  *      advice before doing this.
 20  *
 21  */
 22 
 23 #ifndef __LINUX_SECURITY_H
 24 #define __LINUX_SECURITY_H
 25 
 26 #include <linux/key.h>
 27 #include <linux/capability.h>
 28 #include <linux/fs.h>
 29 #include <linux/slab.h>
 30 #include <linux/err.h>
 31 #include <linux/string.h>
 32 #include <linux/mm.h>
 33 #include <linux/fs.h>
 34 
 35 struct linux_binprm;
 36 struct cred;
 37 struct rlimit;
 38 struct kernel_siginfo;
 39 struct sembuf;
 40 struct kern_ipc_perm;
 41 struct audit_context;
 42 struct super_block;
 43 struct inode;
 44 struct dentry;
 45 struct file;
 46 struct vfsmount;
 47 struct path;
 48 struct qstr;
 49 struct iattr;
 50 struct fown_struct;
 51 struct file_operations;
 52 struct msg_msg;
 53 struct xattr;
 54 struct kernfs_node;
 55 struct xfrm_sec_ctx;
 56 struct mm_struct;
 57 struct fs_context;
 58 struct fs_parameter;
 59 enum fs_value_type;
 60 #include <linux/ccsecurity.h>
 61 
 62 /* Default (no) options for the capable function */
 63 #define CAP_OPT_NONE 0x0
 64 /* If capable should audit the security request */
 65 #define CAP_OPT_NOAUDIT BIT(1)
 66 /* If capable is being called by a setid function */
 67 #define CAP_OPT_INSETID BIT(2)
 68 
 69 /* LSM Agnostic defines for fs_context::lsm_flags */
 70 #define SECURITY_LSM_NATIVE_LABELS      1
 71 
 72 struct ctl_table;
 73 struct audit_krule;
 74 struct user_namespace;
 75 struct timezone;
 76 
 77 enum lsm_event {
 78         LSM_POLICY_CHANGE,
 79 };
 80 
 81 /* These functions are in security/commoncap.c */
 82 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
 83                        int cap, unsigned int opts);
 84 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
 85 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
 86 extern int cap_ptrace_traceme(struct task_struct *parent);
 87 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
 88 extern int cap_capset(struct cred *new, const struct cred *old,
 89                       const kernel_cap_t *effective,
 90                       const kernel_cap_t *inheritable,
 91                       const kernel_cap_t *permitted);
 92 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
 93 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
 94                               const void *value, size_t size, int flags);
 95 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
 96 extern int cap_inode_need_killpriv(struct dentry *dentry);
 97 extern int cap_inode_killpriv(struct dentry *dentry);
 98 extern int cap_inode_getsecurity(struct inode *inode, const char *name,
 99                                  void **buffer, bool alloc);
100 extern int cap_mmap_addr(unsigned long addr);
101 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
102                          unsigned long prot, unsigned long flags);
103 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
104 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
105                           unsigned long arg4, unsigned long arg5);
106 extern int cap_task_setscheduler(struct task_struct *p);
107 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
108 extern int cap_task_setnice(struct task_struct *p, int nice);
109 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
110 
111 struct msghdr;
112 struct sk_buff;
113 struct sock;
114 struct sockaddr;
115 struct socket;
116 struct flowi;
117 struct dst_entry;
118 struct xfrm_selector;
119 struct xfrm_policy;
120 struct xfrm_state;
121 struct xfrm_user_sec_ctx;
122 struct seq_file;
123 struct sctp_endpoint;
124 
125 #ifdef CONFIG_MMU
126 extern unsigned long mmap_min_addr;
127 extern unsigned long dac_mmap_min_addr;
128 #else
129 #define mmap_min_addr           0UL
130 #define dac_mmap_min_addr       0UL
131 #endif
132 
133 /*
134  * Values used in the task_security_ops calls
135  */
136 /* setuid or setgid, id0 == uid or gid */
137 #define LSM_SETID_ID    1
138 
139 /* setreuid or setregid, id0 == real, id1 == eff */
140 #define LSM_SETID_RE    2
141 
142 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
143 #define LSM_SETID_RES   4
144 
145 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
146 #define LSM_SETID_FS    8
147 
148 /* Flags for security_task_prlimit(). */
149 #define LSM_PRLIMIT_READ  1
150 #define LSM_PRLIMIT_WRITE 2
151 
152 /* forward declares to avoid warnings */
153 struct sched_param;
154 struct request_sock;
155 
156 /* bprm->unsafe reasons */
157 #define LSM_UNSAFE_SHARE        1
158 #define LSM_UNSAFE_PTRACE       2
159 #define LSM_UNSAFE_NO_NEW_PRIVS 4
160 
161 #ifdef CONFIG_MMU
162 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
163                                  void __user *buffer, size_t *lenp, loff_t *ppos);
164 #endif
165 
166 /* security_inode_init_security callback function to write xattrs */
167 typedef int (*initxattrs) (struct inode *inode,
168                            const struct xattr *xattr_array, void *fs_data);
169 
170 
171 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
172 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
173 #define __data_id_stringify(dummy, str) #str,
174 
175 enum kernel_load_data_id {
176         __kernel_read_file_id(__data_id_enumify)
177 };
178 
179 static const char * const kernel_load_data_str[] = {
180         __kernel_read_file_id(__data_id_stringify)
181 };
182 
183 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
184 {
185         if ((unsigned)id >= LOADING_MAX_ID)
186                 return kernel_load_data_str[LOADING_UNKNOWN];
187 
188         return kernel_load_data_str[id];
189 }
190 
191 #ifdef CONFIG_SECURITY
192 
193 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
194 int register_blocking_lsm_notifier(struct notifier_block *nb);
195 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
196 
197 /* prototypes */
198 extern int security_init(void);
199 
200 /* Security operations */
201 int security_binder_set_context_mgr(struct task_struct *mgr);
202 int security_binder_transaction(struct task_struct *from,
203                                 struct task_struct *to);
204 int security_binder_transfer_binder(struct task_struct *from,
205                                     struct task_struct *to);
206 int security_binder_transfer_file(struct task_struct *from,
207                                   struct task_struct *to, struct file *file);
208 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
209 int security_ptrace_traceme(struct task_struct *parent);
210 int security_capget(struct task_struct *target,
211                     kernel_cap_t *effective,
212                     kernel_cap_t *inheritable,
213                     kernel_cap_t *permitted);
214 int security_capset(struct cred *new, const struct cred *old,
215                     const kernel_cap_t *effective,
216                     const kernel_cap_t *inheritable,
217                     const kernel_cap_t *permitted);
218 int security_capable(const struct cred *cred,
219                        struct user_namespace *ns,
220                        int cap,
221                        unsigned int opts);
222 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
223 int security_quota_on(struct dentry *dentry);
224 int security_syslog(int type);
225 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
226 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
227 int security_bprm_set_creds(struct linux_binprm *bprm);
228 int security_bprm_check(struct linux_binprm *bprm);
229 void security_bprm_committing_creds(struct linux_binprm *bprm);
230 void security_bprm_committed_creds(struct linux_binprm *bprm);
231 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
232 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
233 int security_sb_alloc(struct super_block *sb);
234 void security_sb_free(struct super_block *sb);
235 void security_free_mnt_opts(void **mnt_opts);
236 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
237 int security_sb_remount(struct super_block *sb, void *mnt_opts);
238 int security_sb_kern_mount(struct super_block *sb);
239 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
240 int security_sb_statfs(struct dentry *dentry);
241 int security_sb_mount(const char *dev_name, const struct path *path,
242                       const char *type, unsigned long flags, void *data);
243 int security_sb_umount(struct vfsmount *mnt, int flags);
244 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
245 int security_sb_set_mnt_opts(struct super_block *sb,
246                                 void *mnt_opts,
247                                 unsigned long kern_flags,
248                                 unsigned long *set_kern_flags);
249 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
250                                 struct super_block *newsb,
251                                 unsigned long kern_flags,
252                                 unsigned long *set_kern_flags);
253 int security_add_mnt_opt(const char *option, const char *val,
254                                 int len, void **mnt_opts);
255 int security_move_mount(const struct path *from_path, const struct path *to_path);
256 int security_dentry_init_security(struct dentry *dentry, int mode,
257                                         const struct qstr *name, void **ctx,
258                                         u32 *ctxlen);
259 int security_dentry_create_files_as(struct dentry *dentry, int mode,
260                                         struct qstr *name,
261                                         const struct cred *old,
262                                         struct cred *new);
263 
264 int security_inode_alloc(struct inode *inode);
265 void security_inode_free(struct inode *inode);
266 int security_inode_init_security(struct inode *inode, struct inode *dir,
267                                  const struct qstr *qstr,
268                                  initxattrs initxattrs, void *fs_data);
269 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
270                                      const struct qstr *qstr, const char **name,
271                                      void **value, size_t *len);
272 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
273 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
274                          struct dentry *new_dentry);
275 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
276 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
277                            const char *old_name);
278 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
279 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
280 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
281 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
282                           struct inode *new_dir, struct dentry *new_dentry,
283                           unsigned int flags);
284 int security_inode_readlink(struct dentry *dentry);
285 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
286                                bool rcu);
287 int security_inode_permission(struct inode *inode, int mask);
288 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
289 int security_inode_getattr(const struct path *path);
290 int security_inode_setxattr(struct dentry *dentry, const char *name,
291                             const void *value, size_t size, int flags);
292 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
293                                   const void *value, size_t size, int flags);
294 int security_inode_getxattr(struct dentry *dentry, const char *name);
295 int security_inode_listxattr(struct dentry *dentry);
296 int security_inode_removexattr(struct dentry *dentry, const char *name);
297 int security_inode_need_killpriv(struct dentry *dentry);
298 int security_inode_killpriv(struct dentry *dentry);
299 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
300 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
301 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
302 void security_inode_getsecid(struct inode *inode, u32 *secid);
303 int security_inode_copy_up(struct dentry *src, struct cred **new);
304 int security_inode_copy_up_xattr(const char *name);
305 int security_kernfs_init_security(struct kernfs_node *kn_dir,
306                                   struct kernfs_node *kn);
307 int security_file_permission(struct file *file, int mask);
308 int security_file_alloc(struct file *file);
309 void security_file_free(struct file *file);
310 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
311 int security_mmap_file(struct file *file, unsigned long prot,
312                         unsigned long flags);
313 int security_mmap_addr(unsigned long addr);
314 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
315                            unsigned long prot);
316 int security_file_lock(struct file *file, unsigned int cmd);
317 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
318 void security_file_set_fowner(struct file *file);
319 int security_file_send_sigiotask(struct task_struct *tsk,
320                                  struct fown_struct *fown, int sig);
321 int security_file_receive(struct file *file);
322 int security_file_open(struct file *file);
323 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
324 void security_task_free(struct task_struct *task);
325 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
326 void security_cred_free(struct cred *cred);
327 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
328 void security_transfer_creds(struct cred *new, const struct cred *old);
329 void security_cred_getsecid(const struct cred *c, u32 *secid);
330 int security_kernel_act_as(struct cred *new, u32 secid);
331 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
332 int security_kernel_module_request(char *kmod_name);
333 int security_kernel_load_data(enum kernel_load_data_id id);
334 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
335 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
336                                    enum kernel_read_file_id id);
337 int security_task_fix_setuid(struct cred *new, const struct cred *old,
338                              int flags);
339 int security_task_setpgid(struct task_struct *p, pid_t pgid);
340 int security_task_getpgid(struct task_struct *p);
341 int security_task_getsid(struct task_struct *p);
342 void security_task_getsecid(struct task_struct *p, u32 *secid);
343 int security_task_setnice(struct task_struct *p, int nice);
344 int security_task_setioprio(struct task_struct *p, int ioprio);
345 int security_task_getioprio(struct task_struct *p);
346 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
347                           unsigned int flags);
348 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
349                 struct rlimit *new_rlim);
350 int security_task_setscheduler(struct task_struct *p);
351 int security_task_getscheduler(struct task_struct *p);
352 int security_task_movememory(struct task_struct *p);
353 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
354                         int sig, const struct cred *cred);
355 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
356                         unsigned long arg4, unsigned long arg5);
357 void security_task_to_inode(struct task_struct *p, struct inode *inode);
358 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
359 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
360 int security_msg_msg_alloc(struct msg_msg *msg);
361 void security_msg_msg_free(struct msg_msg *msg);
362 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
363 void security_msg_queue_free(struct kern_ipc_perm *msq);
364 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
365 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
366 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
367                               struct msg_msg *msg, int msqflg);
368 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
369                               struct task_struct *target, long type, int mode);
370 int security_shm_alloc(struct kern_ipc_perm *shp);
371 void security_shm_free(struct kern_ipc_perm *shp);
372 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
373 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
374 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
375 int security_sem_alloc(struct kern_ipc_perm *sma);
376 void security_sem_free(struct kern_ipc_perm *sma);
377 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
378 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
379 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
380                         unsigned nsops, int alter);
381 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
382 int security_getprocattr(struct task_struct *p, const char *lsm, char *name,
383                          char **value);
384 int security_setprocattr(const char *lsm, const char *name, void *value,
385                          size_t size);
386 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
387 int security_ismaclabel(const char *name);
388 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
389 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
390 void security_release_secctx(char *secdata, u32 seclen);
391 
392 void security_inode_invalidate_secctx(struct inode *inode);
393 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
394 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
395 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
396 #else /* CONFIG_SECURITY */
397 
398 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
399 {
400         return 0;
401 }
402 
403 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
404 {
405         return 0;
406 }
407 
408 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
409 {
410         return 0;
411 }
412 
413 static inline void security_free_mnt_opts(void **mnt_opts)
414 {
415 }
416 
417 /*
418  * This is the default capabilities functionality.  Most of these functions
419  * are just stubbed out, but a few must call the proper capable code.
420  */
421 
422 static inline int security_init(void)
423 {
424         return 0;
425 }
426 
427 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
428 {
429         return 0;
430 }
431 
432 static inline int security_binder_transaction(struct task_struct *from,
433                                               struct task_struct *to)
434 {
435         return 0;
436 }
437 
438 static inline int security_binder_transfer_binder(struct task_struct *from,
439                                                   struct task_struct *to)
440 {
441         return 0;
442 }
443 
444 static inline int security_binder_transfer_file(struct task_struct *from,
445                                                 struct task_struct *to,
446                                                 struct file *file)
447 {
448         return 0;
449 }
450 
451 static inline int security_ptrace_access_check(struct task_struct *child,
452                                              unsigned int mode)
453 {
454         return cap_ptrace_access_check(child, mode);
455 }
456 
457 static inline int security_ptrace_traceme(struct task_struct *parent)
458 {
459         return cap_ptrace_traceme(parent);
460 }
461 
462 static inline int security_capget(struct task_struct *target,
463                                    kernel_cap_t *effective,
464                                    kernel_cap_t *inheritable,
465                                    kernel_cap_t *permitted)
466 {
467         return cap_capget(target, effective, inheritable, permitted);
468 }
469 
470 static inline int security_capset(struct cred *new,
471                                    const struct cred *old,
472                                    const kernel_cap_t *effective,
473                                    const kernel_cap_t *inheritable,
474                                    const kernel_cap_t *permitted)
475 {
476         return cap_capset(new, old, effective, inheritable, permitted);
477 }
478 
479 static inline int security_capable(const struct cred *cred,
480                                    struct user_namespace *ns,
481                                    int cap,
482                                    unsigned int opts)
483 {
484         return cap_capable(cred, ns, cap, opts);
485 }
486 
487 static inline int security_quotactl(int cmds, int type, int id,
488                                      struct super_block *sb)
489 {
490         return 0;
491 }
492 
493 static inline int security_quota_on(struct dentry *dentry)
494 {
495         return 0;
496 }
497 
498 static inline int security_syslog(int type)
499 {
500         return 0;
501 }
502 
503 static inline int security_settime64(const struct timespec64 *ts,
504                                      const struct timezone *tz)
505 {
506         int error = cap_settime(ts, tz);
507         if (!error)
508                 error = ccs_settime(ts, tz);
509         return error;
510 }
511 
512 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
513 {
514         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
515 }
516 
517 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
518 {
519         return cap_bprm_set_creds(bprm);
520 }
521 
522 static inline int security_bprm_check(struct linux_binprm *bprm)
523 {
524         return 0;
525 }
526 
527 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
528 {
529 }
530 
531 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
532 {
533 }
534 
535 static inline int security_fs_context_dup(struct fs_context *fc,
536                                           struct fs_context *src_fc)
537 {
538         return 0;
539 }
540 static inline int security_fs_context_parse_param(struct fs_context *fc,
541                                                   struct fs_parameter *param)
542 {
543         return -ENOPARAM;
544 }
545 
546 static inline int security_sb_alloc(struct super_block *sb)
547 {
548         return 0;
549 }
550 
551 static inline void security_sb_free(struct super_block *sb)
552 { }
553 
554 static inline int security_sb_eat_lsm_opts(char *options,
555                                            void **mnt_opts)
556 {
557         return 0;
558 }
559 
560 static inline int security_sb_remount(struct super_block *sb,
561                                       void *mnt_opts)
562 {
563         return 0;
564 }
565 
566 static inline int security_sb_kern_mount(struct super_block *sb)
567 {
568         return 0;
569 }
570 
571 static inline int security_sb_show_options(struct seq_file *m,
572                                            struct super_block *sb)
573 {
574         return 0;
575 }
576 
577 static inline int security_sb_statfs(struct dentry *dentry)
578 {
579         return 0;
580 }
581 
582 static inline int security_sb_mount(const char *dev_name, const struct path *path,
583                                     const char *type, unsigned long flags,
584                                     void *data)
585 {
586         return ccs_sb_mount(dev_name, path, type, flags, data);
587 }
588 
589 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
590 {
591         return ccs_sb_umount(mnt, flags);
592 }
593 
594 static inline int security_sb_pivotroot(const struct path *old_path,
595                                         const struct path *new_path)
596 {
597         return ccs_sb_pivotroot(old_path, new_path);
598 }
599 
600 static inline int security_sb_set_mnt_opts(struct super_block *sb,
601                                            void *mnt_opts,
602                                            unsigned long kern_flags,
603                                            unsigned long *set_kern_flags)
604 {
605         return 0;
606 }
607 
608 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
609                                               struct super_block *newsb,
610                                               unsigned long kern_flags,
611                                               unsigned long *set_kern_flags)
612 {
613         return 0;
614 }
615 
616 static inline int security_add_mnt_opt(const char *option, const char *val,
617                                         int len, void **mnt_opts)
618 {
619         return 0;
620 }
621 
622 static inline int security_move_mount(const struct path *from_path,
623                                       const struct path *to_path)
624 {
625         return ccs_move_mount_permission(from_path, to_path);
626 }
627 
628 static inline int security_inode_alloc(struct inode *inode)
629 {
630         return 0;
631 }
632 
633 static inline void security_inode_free(struct inode *inode)
634 { }
635 
636 static inline int security_dentry_init_security(struct dentry *dentry,
637                                                  int mode,
638                                                  const struct qstr *name,
639                                                  void **ctx,
640                                                  u32 *ctxlen)
641 {
642         return -EOPNOTSUPP;
643 }
644 
645 static inline int security_dentry_create_files_as(struct dentry *dentry,
646                                                   int mode, struct qstr *name,
647                                                   const struct cred *old,
648                                                   struct cred *new)
649 {
650         return 0;
651 }
652 
653 
654 static inline int security_inode_init_security(struct inode *inode,
655                                                 struct inode *dir,
656                                                 const struct qstr *qstr,
657                                                 const initxattrs xattrs,
658                                                 void *fs_data)
659 {
660         return 0;
661 }
662 
663 static inline int security_old_inode_init_security(struct inode *inode,
664                                                    struct inode *dir,
665                                                    const struct qstr *qstr,
666                                                    const char **name,
667                                                    void **value, size_t *len)
668 {
669         return -EOPNOTSUPP;
670 }
671 
672 static inline int security_inode_create(struct inode *dir,
673                                          struct dentry *dentry,
674                                          umode_t mode)
675 {
676         return 0;
677 }
678 
679 static inline int security_inode_link(struct dentry *old_dentry,
680                                        struct inode *dir,
681                                        struct dentry *new_dentry)
682 {
683         return 0;
684 }
685 
686 static inline int security_inode_unlink(struct inode *dir,
687                                          struct dentry *dentry)
688 {
689         return 0;
690 }
691 
692 static inline int security_inode_symlink(struct inode *dir,
693                                           struct dentry *dentry,
694                                           const char *old_name)
695 {
696         return 0;
697 }
698 
699 static inline int security_inode_mkdir(struct inode *dir,
700                                         struct dentry *dentry,
701                                         int mode)
702 {
703         return 0;
704 }
705 
706 static inline int security_inode_rmdir(struct inode *dir,
707                                         struct dentry *dentry)
708 {
709         return 0;
710 }
711 
712 static inline int security_inode_mknod(struct inode *dir,
713                                         struct dentry *dentry,
714                                         int mode, dev_t dev)
715 {
716         return 0;
717 }
718 
719 static inline int security_inode_rename(struct inode *old_dir,
720                                          struct dentry *old_dentry,
721                                          struct inode *new_dir,
722                                          struct dentry *new_dentry,
723                                          unsigned int flags)
724 {
725         return 0;
726 }
727 
728 static inline int security_inode_readlink(struct dentry *dentry)
729 {
730         return 0;
731 }
732 
733 static inline int security_inode_follow_link(struct dentry *dentry,
734                                              struct inode *inode,
735                                              bool rcu)
736 {
737         return 0;
738 }
739 
740 static inline int security_inode_permission(struct inode *inode, int mask)
741 {
742         return 0;
743 }
744 
745 static inline int security_inode_setattr(struct dentry *dentry,
746                                           struct iattr *attr)
747 {
748         return 0;
749 }
750 
751 static inline int security_inode_getattr(const struct path *path)
752 {
753         return ccs_inode_getattr(path);
754 }
755 
756 static inline int security_inode_setxattr(struct dentry *dentry,
757                 const char *name, const void *value, size_t size, int flags)
758 {
759         return cap_inode_setxattr(dentry, name, value, size, flags);
760 }
761 
762 static inline void security_inode_post_setxattr(struct dentry *dentry,
763                 const char *name, const void *value, size_t size, int flags)
764 { }
765 
766 static inline int security_inode_getxattr(struct dentry *dentry,
767                         const char *name)
768 {
769         return 0;
770 }
771 
772 static inline int security_inode_listxattr(struct dentry *dentry)
773 {
774         return 0;
775 }
776 
777 static inline int security_inode_removexattr(struct dentry *dentry,
778                         const char *name)
779 {
780         return cap_inode_removexattr(dentry, name);
781 }
782 
783 static inline int security_inode_need_killpriv(struct dentry *dentry)
784 {
785         return cap_inode_need_killpriv(dentry);
786 }
787 
788 static inline int security_inode_killpriv(struct dentry *dentry)
789 {
790         return cap_inode_killpriv(dentry);
791 }
792 
793 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
794 {
795         return -EOPNOTSUPP;
796 }
797 
798 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
799 {
800         return -EOPNOTSUPP;
801 }
802 
803 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
804 {
805         return 0;
806 }
807 
808 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
809 {
810         *secid = 0;
811 }
812 
813 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
814 {
815         return 0;
816 }
817 
818 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
819                                                 struct kernfs_node *kn)
820 {
821         return 0;
822 }
823 
824 static inline int security_inode_copy_up_xattr(const char *name)
825 {
826         return -EOPNOTSUPP;
827 }
828 
829 static inline int security_file_permission(struct file *file, int mask)
830 {
831         return 0;
832 }
833 
834 static inline int security_file_alloc(struct file *file)
835 {
836         return 0;
837 }
838 
839 static inline void security_file_free(struct file *file)
840 { }
841 
842 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
843                                       unsigned long arg)
844 {
845         return ccs_file_ioctl(file, cmd, arg);
846 }
847 
848 static inline int security_mmap_file(struct file *file, unsigned long prot,
849                                      unsigned long flags)
850 {
851         return 0;
852 }
853 
854 static inline int security_mmap_addr(unsigned long addr)
855 {
856         return cap_mmap_addr(addr);
857 }
858 
859 static inline int security_file_mprotect(struct vm_area_struct *vma,
860                                          unsigned long reqprot,
861                                          unsigned long prot)
862 {
863         return 0;
864 }
865 
866 static inline int security_file_lock(struct file *file, unsigned int cmd)
867 {
868         return 0;
869 }
870 
871 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
872                                       unsigned long arg)
873 {
874         return ccs_file_fcntl(file, cmd, arg);
875 }
876 
877 static inline void security_file_set_fowner(struct file *file)
878 {
879         return;
880 }
881 
882 static inline int security_file_send_sigiotask(struct task_struct *tsk,
883                                                struct fown_struct *fown,
884                                                int sig)
885 {
886         return 0;
887 }
888 
889 static inline int security_file_receive(struct file *file)
890 {
891         return 0;
892 }
893 
894 static inline int security_file_open(struct file *file)
895 {
896         return ccs_file_open(file);
897 }
898 
899 static inline int security_task_alloc(struct task_struct *task,
900                                       unsigned long clone_flags)
901 {
902         return ccs_alloc_task_security(task);
903 }
904 
905 static inline void security_task_free(struct task_struct *task)
906 {
907         ccs_free_task_security(task);
908 }
909 
910 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
911 {
912         return 0;
913 }
914 
915 static inline void security_cred_free(struct cred *cred)
916 { }
917 
918 static inline int security_prepare_creds(struct cred *new,
919                                          const struct cred *old,
920                                          gfp_t gfp)
921 {
922         return 0;
923 }
924 
925 static inline void security_transfer_creds(struct cred *new,
926                                            const struct cred *old)
927 {
928 }
929 
930 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
931 {
932         return 0;
933 }
934 
935 static inline int security_kernel_create_files_as(struct cred *cred,
936                                                   struct inode *inode)
937 {
938         return 0;
939 }
940 
941 static inline int security_kernel_module_request(char *kmod_name)
942 {
943         return 0;
944 }
945 
946 static inline int security_kernel_load_data(enum kernel_load_data_id id)
947 {
948         return 0;
949 }
950 
951 static inline int security_kernel_read_file(struct file *file,
952                                             enum kernel_read_file_id id)
953 {
954         return 0;
955 }
956 
957 static inline int security_kernel_post_read_file(struct file *file,
958                                                  char *buf, loff_t size,
959                                                  enum kernel_read_file_id id)
960 {
961         return 0;
962 }
963 
964 static inline int security_task_fix_setuid(struct cred *new,
965                                            const struct cred *old,
966                                            int flags)
967 {
968         return cap_task_fix_setuid(new, old, flags);
969 }
970 
971 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
972 {
973         return 0;
974 }
975 
976 static inline int security_task_getpgid(struct task_struct *p)
977 {
978         return 0;
979 }
980 
981 static inline int security_task_getsid(struct task_struct *p)
982 {
983         return 0;
984 }
985 
986 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
987 {
988         *secid = 0;
989 }
990 
991 static inline int security_task_setnice(struct task_struct *p, int nice)
992 {
993         return cap_task_setnice(p, nice);
994 }
995 
996 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
997 {
998         return cap_task_setioprio(p, ioprio);
999 }
1000 
1001 static inline int security_task_getioprio(struct task_struct *p)
1002 {
1003         return 0;
1004 }
1005 
1006 static inline int security_task_prlimit(const struct cred *cred,
1007                                         const struct cred *tcred,
1008                                         unsigned int flags)
1009 {
1010         return 0;
1011 }
1012 
1013 static inline int security_task_setrlimit(struct task_struct *p,
1014                                           unsigned int resource,
1015                                           struct rlimit *new_rlim)
1016 {
1017         return 0;
1018 }
1019 
1020 static inline int security_task_setscheduler(struct task_struct *p)
1021 {
1022         return cap_task_setscheduler(p);
1023 }
1024 
1025 static inline int security_task_getscheduler(struct task_struct *p)
1026 {
1027         return 0;
1028 }
1029 
1030 static inline int security_task_movememory(struct task_struct *p)
1031 {
1032         return 0;
1033 }
1034 
1035 static inline int security_task_kill(struct task_struct *p,
1036                                      struct kernel_siginfo *info, int sig,
1037                                      const struct cred *cred)
1038 {
1039         return 0;
1040 }
1041 
1042 static inline int security_task_prctl(int option, unsigned long arg2,
1043                                       unsigned long arg3,
1044                                       unsigned long arg4,
1045                                       unsigned long arg5)
1046 {
1047         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1048 }
1049 
1050 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1051 { }
1052 
1053 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1054                                           short flag)
1055 {
1056         return 0;
1057 }
1058 
1059 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1060 {
1061         *secid = 0;
1062 }
1063 
1064 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1065 {
1066         return 0;
1067 }
1068 
1069 static inline void security_msg_msg_free(struct msg_msg *msg)
1070 { }
1071 
1072 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1073 {
1074         return 0;
1075 }
1076 
1077 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1078 { }
1079 
1080 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1081                                                int msqflg)
1082 {
1083         return 0;
1084 }
1085 
1086 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1087 {
1088         return 0;
1089 }
1090 
1091 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1092                                             struct msg_msg *msg, int msqflg)
1093 {
1094         return 0;
1095 }
1096 
1097 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1098                                             struct msg_msg *msg,
1099                                             struct task_struct *target,
1100                                             long type, int mode)
1101 {
1102         return 0;
1103 }
1104 
1105 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1106 {
1107         return 0;
1108 }
1109 
1110 static inline void security_shm_free(struct kern_ipc_perm *shp)
1111 { }
1112 
1113 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1114                                          int shmflg)
1115 {
1116         return 0;
1117 }
1118 
1119 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1120 {
1121         return 0;
1122 }
1123 
1124 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1125                                      char __user *shmaddr, int shmflg)
1126 {
1127         return 0;
1128 }
1129 
1130 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1131 {
1132         return 0;
1133 }
1134 
1135 static inline void security_sem_free(struct kern_ipc_perm *sma)
1136 { }
1137 
1138 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1139 {
1140         return 0;
1141 }
1142 
1143 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1144 {
1145         return 0;
1146 }
1147 
1148 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1149                                      struct sembuf *sops, unsigned nsops,
1150                                      int alter)
1151 {
1152         return 0;
1153 }
1154 
1155 static inline void security_d_instantiate(struct dentry *dentry,
1156                                           struct inode *inode)
1157 { }
1158 
1159 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1160                                        char *name, char **value)
1161 {
1162         return -EINVAL;
1163 }
1164 
1165 static inline int security_setprocattr(const char *lsm, char *name,
1166                                        void *value, size_t size)
1167 {
1168         return -EINVAL;
1169 }
1170 
1171 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1172 {
1173         return 0;
1174 }
1175 
1176 static inline int security_ismaclabel(const char *name)
1177 {
1178         return 0;
1179 }
1180 
1181 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1182 {
1183         return -EOPNOTSUPP;
1184 }
1185 
1186 static inline int security_secctx_to_secid(const char *secdata,
1187                                            u32 seclen,
1188                                            u32 *secid)
1189 {
1190         return -EOPNOTSUPP;
1191 }
1192 
1193 static inline void security_release_secctx(char *secdata, u32 seclen)
1194 {
1195 }
1196 
1197 static inline void security_inode_invalidate_secctx(struct inode *inode)
1198 {
1199 }
1200 
1201 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1202 {
1203         return -EOPNOTSUPP;
1204 }
1205 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1206 {
1207         return -EOPNOTSUPP;
1208 }
1209 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1210 {
1211         return -EOPNOTSUPP;
1212 }
1213 #endif  /* CONFIG_SECURITY */
1214 
1215 #ifdef CONFIG_SECURITY_NETWORK
1216 
1217 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1218 int security_unix_may_send(struct socket *sock,  struct socket *other);
1219 int security_socket_create(int family, int type, int protocol, int kern);
1220 int security_socket_post_create(struct socket *sock, int family,
1221                                 int type, int protocol, int kern);
1222 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1223 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1224 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1225 int security_socket_listen(struct socket *sock, int backlog);
1226 int security_socket_accept(struct socket *sock, struct socket *newsock);
1227 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1228 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1229                             int size, int flags);
1230 int security_socket_getsockname(struct socket *sock);
1231 int security_socket_getpeername(struct socket *sock);
1232 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1233 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1234 int security_socket_shutdown(struct socket *sock, int how);
1235 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1236 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1237                                       int __user *optlen, unsigned len);
1238 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1239 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1240 void security_sk_free(struct sock *sk);
1241 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1242 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1243 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1244 void security_sock_graft(struct sock*sk, struct socket *parent);
1245 int security_inet_conn_request(struct sock *sk,
1246                         struct sk_buff *skb, struct request_sock *req);
1247 void security_inet_csk_clone(struct sock *newsk,
1248                         const struct request_sock *req);
1249 void security_inet_conn_established(struct sock *sk,
1250                         struct sk_buff *skb);
1251 int security_secmark_relabel_packet(u32 secid);
1252 void security_secmark_refcount_inc(void);
1253 void security_secmark_refcount_dec(void);
1254 int security_tun_dev_alloc_security(void **security);
1255 void security_tun_dev_free_security(void *security);
1256 int security_tun_dev_create(void);
1257 int security_tun_dev_attach_queue(void *security);
1258 int security_tun_dev_attach(struct sock *sk, void *security);
1259 int security_tun_dev_open(void *security);
1260 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1261 int security_sctp_bind_connect(struct sock *sk, int optname,
1262                                struct sockaddr *address, int addrlen);
1263 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1264                             struct sock *newsk);
1265 
1266 #else   /* CONFIG_SECURITY_NETWORK */
1267 static inline int security_unix_stream_connect(struct sock *sock,
1268                                                struct sock *other,
1269                                                struct sock *newsk)
1270 {
1271         return 0;
1272 }
1273 
1274 static inline int security_unix_may_send(struct socket *sock,
1275                                          struct socket *other)
1276 {
1277         return 0;
1278 }
1279 
1280 static inline int security_socket_create(int family, int type,
1281                                          int protocol, int kern)
1282 {
1283         return ccs_socket_create(family, type, protocol, kern);
1284 }
1285 
1286 static inline int security_socket_post_create(struct socket *sock,
1287                                               int family,
1288                                               int type,
1289                                               int protocol, int kern)
1290 {
1291         return 0;
1292 }
1293 
1294 static inline int security_socket_socketpair(struct socket *socka,
1295                                              struct socket *sockb)
1296 {
1297         return 0;
1298 }
1299 
1300 static inline int security_socket_bind(struct socket *sock,
1301                                        struct sockaddr *address,
1302                                        int addrlen)
1303 {
1304         return ccs_socket_bind(sock, address, addrlen);
1305 }
1306 
1307 static inline int security_socket_connect(struct socket *sock,
1308                                           struct sockaddr *address,
1309                                           int addrlen)
1310 {
1311         return ccs_socket_connect(sock, address, addrlen);
1312 }
1313 
1314 static inline int security_socket_listen(struct socket *sock, int backlog)
1315 {
1316         return ccs_socket_listen(sock, backlog);
1317 }
1318 
1319 static inline int security_socket_accept(struct socket *sock,
1320                                          struct socket *newsock)
1321 {
1322         return 0;
1323 }
1324 
1325 static inline int security_socket_sendmsg(struct socket *sock,
1326                                           struct msghdr *msg, int size)
1327 {
1328         return ccs_socket_sendmsg(sock, msg, size);
1329 }
1330 
1331 static inline int security_socket_recvmsg(struct socket *sock,
1332                                           struct msghdr *msg, int size,
1333                                           int flags)
1334 {
1335         return 0;
1336 }
1337 
1338 static inline int security_socket_getsockname(struct socket *sock)
1339 {
1340         return 0;
1341 }
1342 
1343 static inline int security_socket_getpeername(struct socket *sock)
1344 {
1345         return 0;
1346 }
1347 
1348 static inline int security_socket_getsockopt(struct socket *sock,
1349                                              int level, int optname)
1350 {
1351         return 0;
1352 }
1353 
1354 static inline int security_socket_setsockopt(struct socket *sock,
1355                                              int level, int optname)
1356 {
1357         return 0;
1358 }
1359 
1360 static inline int security_socket_shutdown(struct socket *sock, int how)
1361 {
1362         return 0;
1363 }
1364 static inline int security_sock_rcv_skb(struct sock *sk,
1365                                         struct sk_buff *skb)
1366 {
1367         return 0;
1368 }
1369 
1370 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1371                                                     int __user *optlen, unsigned len)
1372 {
1373         return -ENOPROTOOPT;
1374 }
1375 
1376 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1377 {
1378         return -ENOPROTOOPT;
1379 }
1380 
1381 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1382 {
1383         return 0;
1384 }
1385 
1386 static inline void security_sk_free(struct sock *sk)
1387 {
1388 }
1389 
1390 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1391 {
1392 }
1393 
1394 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1395 {
1396 }
1397 
1398 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1399 {
1400 }
1401 
1402 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1403 {
1404 }
1405 
1406 static inline int security_inet_conn_request(struct sock *sk,
1407                         struct sk_buff *skb, struct request_sock *req)
1408 {
1409         return 0;
1410 }
1411 
1412 static inline void security_inet_csk_clone(struct sock *newsk,
1413                         const struct request_sock *req)
1414 {
1415 }
1416 
1417 static inline void security_inet_conn_established(struct sock *sk,
1418                         struct sk_buff *skb)
1419 {
1420 }
1421 
1422 static inline int security_secmark_relabel_packet(u32 secid)
1423 {
1424         return 0;
1425 }
1426 
1427 static inline void security_secmark_refcount_inc(void)
1428 {
1429 }
1430 
1431 static inline void security_secmark_refcount_dec(void)
1432 {
1433 }
1434 
1435 static inline int security_tun_dev_alloc_security(void **security)
1436 {
1437         return 0;
1438 }
1439 
1440 static inline void security_tun_dev_free_security(void *security)
1441 {
1442 }
1443 
1444 static inline int security_tun_dev_create(void)
1445 {
1446         return 0;
1447 }
1448 
1449 static inline int security_tun_dev_attach_queue(void *security)
1450 {
1451         return 0;
1452 }
1453 
1454 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1455 {
1456         return 0;
1457 }
1458 
1459 static inline int security_tun_dev_open(void *security)
1460 {
1461         return 0;
1462 }
1463 
1464 static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1465                                               struct sk_buff *skb)
1466 {
1467         return 0;
1468 }
1469 
1470 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1471                                              struct sockaddr *address,
1472                                              int addrlen)
1473 {
1474         return 0;
1475 }
1476 
1477 static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1478                                           struct sock *sk,
1479                                           struct sock *newsk)
1480 {
1481 }
1482 #endif  /* CONFIG_SECURITY_NETWORK */
1483 
1484 #ifdef CONFIG_SECURITY_INFINIBAND
1485 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1486 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1487 int security_ib_alloc_security(void **sec);
1488 void security_ib_free_security(void *sec);
1489 #else   /* CONFIG_SECURITY_INFINIBAND */
1490 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1491 {
1492         return 0;
1493 }
1494 
1495 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1496 {
1497         return 0;
1498 }
1499 
1500 static inline int security_ib_alloc_security(void **sec)
1501 {
1502         return 0;
1503 }
1504 
1505 static inline void security_ib_free_security(void *sec)
1506 {
1507 }
1508 #endif  /* CONFIG_SECURITY_INFINIBAND */
1509 
1510 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1511 
1512 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1513                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1514 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1515 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1516 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1517 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1518 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1519                                       struct xfrm_sec_ctx *polsec, u32 secid);
1520 int security_xfrm_state_delete(struct xfrm_state *x);
1521 void security_xfrm_state_free(struct xfrm_state *x);
1522 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1523 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1524                                        struct xfrm_policy *xp,
1525                                        const struct flowi *fl);
1526 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1527 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1528 
1529 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1530 
1531 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1532                                              struct xfrm_user_sec_ctx *sec_ctx,
1533                                              gfp_t gfp)
1534 {
1535         return 0;
1536 }
1537 
1538 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1539 {
1540         return 0;
1541 }
1542 
1543 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1544 {
1545 }
1546 
1547 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1548 {
1549         return 0;
1550 }
1551 
1552 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1553                                         struct xfrm_user_sec_ctx *sec_ctx)
1554 {
1555         return 0;
1556 }
1557 
1558 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1559                                         struct xfrm_sec_ctx *polsec, u32 secid)
1560 {
1561         return 0;
1562 }
1563 
1564 static inline void security_xfrm_state_free(struct xfrm_state *x)
1565 {
1566 }
1567 
1568 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1569 {
1570         return 0;
1571 }
1572 
1573 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1574 {
1575         return 0;
1576 }
1577 
1578 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1579                         struct xfrm_policy *xp, const struct flowi *fl)
1580 {
1581         return 1;
1582 }
1583 
1584 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1585 {
1586         return 0;
1587 }
1588 
1589 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1590 {
1591 }
1592 
1593 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1594 
1595 #ifdef CONFIG_SECURITY_PATH
1596 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1597 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1598 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1599 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1600                         unsigned int dev);
1601 int security_path_truncate(const struct path *path);
1602 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1603                           const char *old_name);
1604 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1605                        struct dentry *new_dentry);
1606 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1607                          const struct path *new_dir, struct dentry *new_dentry,
1608                          unsigned int flags);
1609 int security_path_chmod(const struct path *path, umode_t mode);
1610 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1611 int security_path_chroot(const struct path *path);
1612 #else   /* CONFIG_SECURITY_PATH */
1613 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1614 {
1615         return ccs_path_unlink(dir, dentry);
1616 }
1617 
1618 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1619                                       umode_t mode)
1620 {
1621         return ccs_path_mkdir(dir, dentry, mode);
1622 }
1623 
1624 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1625 {
1626         return ccs_path_rmdir(dir, dentry);
1627 }
1628 
1629 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1630                                       umode_t mode, unsigned int dev)
1631 {
1632         return ccs_path_mknod(dir, dentry, mode, dev);
1633 }
1634 
1635 static inline int security_path_truncate(const struct path *path)
1636 {
1637         return ccs_path_truncate(path);
1638 }
1639 
1640 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1641                                         const char *old_name)
1642 {
1643         return ccs_path_symlink(dir, dentry, old_name);
1644 }
1645 
1646 static inline int security_path_link(struct dentry *old_dentry,
1647                                      const struct path *new_dir,
1648                                      struct dentry *new_dentry)
1649 {
1650         return ccs_path_link(old_dentry, new_dir, new_dentry);
1651 }
1652 
1653 static inline int security_path_rename(const struct path *old_dir,
1654                                        struct dentry *old_dentry,
1655                                        const struct path *new_dir,
1656                                        struct dentry *new_dentry,
1657                                        unsigned int flags)
1658 {
1659         /*
1660          * Not using RENAME_EXCHANGE here in order to avoid KABI breakage
1661          * by doing "#include <uapi/linux/fs.h>" .
1662          */
1663         if (flags & (1 << 1)) {
1664                 int err = ccs_path_rename(new_dir, new_dentry, old_dir,
1665                                           old_dentry);
1666                 if (err)
1667                         return err;
1668         }
1669         return ccs_path_rename(old_dir, old_dentry, new_dir, new_dentry);
1670 }
1671 
1672 static inline int security_path_chmod(const struct path *path, umode_t mode)
1673 {
1674         return ccs_path_chmod(path, mode);
1675 }
1676 
1677 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1678 {
1679         return ccs_path_chown(path, uid, gid);
1680 }
1681 
1682 static inline int security_path_chroot(const struct path *path)
1683 {
1684         return ccs_path_chroot(path);
1685 }
1686 #endif  /* CONFIG_SECURITY_PATH */
1687 
1688 #ifdef CONFIG_KEYS
1689 #ifdef CONFIG_SECURITY
1690 
1691 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1692 void security_key_free(struct key *key);
1693 int security_key_permission(key_ref_t key_ref,
1694                             const struct cred *cred, unsigned perm);
1695 int security_key_getsecurity(struct key *key, char **_buffer);
1696 
1697 #else
1698 
1699 static inline int security_key_alloc(struct key *key,
1700                                      const struct cred *cred,
1701                                      unsigned long flags)
1702 {
1703         return 0;
1704 }
1705 
1706 static inline void security_key_free(struct key *key)
1707 {
1708 }
1709 
1710 static inline int security_key_permission(key_ref_t key_ref,
1711                                           const struct cred *cred,
1712                                           unsigned perm)
1713 {
1714         return 0;
1715 }
1716 
1717 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1718 {
1719         *_buffer = NULL;
1720         return 0;
1721 }
1722 
1723 #endif
1724 #endif /* CONFIG_KEYS */
1725 
1726 #ifdef CONFIG_AUDIT
1727 #ifdef CONFIG_SECURITY
1728 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1729 int security_audit_rule_known(struct audit_krule *krule);
1730 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1731 void security_audit_rule_free(void *lsmrule);
1732 
1733 #else
1734 
1735 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1736                                            void **lsmrule)
1737 {
1738         return 0;
1739 }
1740 
1741 static inline int security_audit_rule_known(struct audit_krule *krule)
1742 {
1743         return 0;
1744 }
1745 
1746 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1747                                             void *lsmrule)
1748 {
1749         return 0;
1750 }
1751 
1752 static inline void security_audit_rule_free(void *lsmrule)
1753 { }
1754 
1755 #endif /* CONFIG_SECURITY */
1756 #endif /* CONFIG_AUDIT */
1757 
1758 #ifdef CONFIG_SECURITYFS
1759 
1760 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1761                                              struct dentry *parent, void *data,
1762                                              const struct file_operations *fops);
1763 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1764 struct dentry *securityfs_create_symlink(const char *name,
1765                                          struct dentry *parent,
1766                                          const char *target,
1767                                          const struct inode_operations *iops);
1768 extern void securityfs_remove(struct dentry *dentry);
1769 
1770 #else /* CONFIG_SECURITYFS */
1771 
1772 static inline struct dentry *securityfs_create_dir(const char *name,
1773                                                    struct dentry *parent)
1774 {
1775         return ERR_PTR(-ENODEV);
1776 }
1777 
1778 static inline struct dentry *securityfs_create_file(const char *name,
1779                                                     umode_t mode,
1780                                                     struct dentry *parent,
1781                                                     void *data,
1782                                                     const struct file_operations *fops)
1783 {
1784         return ERR_PTR(-ENODEV);
1785 }
1786 
1787 static inline struct dentry *securityfs_create_symlink(const char *name,
1788                                         struct dentry *parent,
1789                                         const char *target,
1790                                         const struct inode_operations *iops)
1791 {
1792         return ERR_PTR(-ENODEV);
1793 }
1794 
1795 static inline void securityfs_remove(struct dentry *dentry)
1796 {}
1797 
1798 #endif
1799 
1800 #ifdef CONFIG_BPF_SYSCALL
1801 union bpf_attr;
1802 struct bpf_map;
1803 struct bpf_prog;
1804 struct bpf_prog_aux;
1805 #ifdef CONFIG_SECURITY
1806 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1807 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1808 extern int security_bpf_prog(struct bpf_prog *prog);
1809 extern int security_bpf_map_alloc(struct bpf_map *map);
1810 extern void security_bpf_map_free(struct bpf_map *map);
1811 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1812 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1813 #else
1814 static inline int security_bpf(int cmd, union bpf_attr *attr,
1815                                              unsigned int size)
1816 {
1817         return 0;
1818 }
1819 
1820 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1821 {
1822         return 0;
1823 }
1824 
1825 static inline int security_bpf_prog(struct bpf_prog *prog)
1826 {
1827         return 0;
1828 }
1829 
1830 static inline int security_bpf_map_alloc(struct bpf_map *map)
1831 {
1832         return 0;
1833 }
1834 
1835 static inline void security_bpf_map_free(struct bpf_map *map)
1836 { }
1837 
1838 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1839 {
1840         return 0;
1841 }
1842 
1843 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1844 { }
1845 #endif /* CONFIG_SECURITY */
1846 #endif /* CONFIG_BPF_SYSCALL */
1847 
1848 #endif /* ! __LINUX_SECURITY_H */
1849 
1850 

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