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