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