projects/linux·blob v4.7-rc2 · refs

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1/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <[email protected]>
5 * Copyright (C) 2001 Greg Kroah-Hartman <[email protected]>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <[email protected]>
7 * Copyright (C) 2001 James Morris <[email protected]>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
19 *
20 */
21
22#ifndef __LINUX_SECURITY_H
23#define __LINUX_SECURITY_H
24
25#include <linux/key.h>
26#include <linux/capability.h>
27#include <linux/fs.h>
28#include <linux/slab.h>
29#include <linux/err.h>
30#include <linux/string.h>
31#include <linux/mm.h>
32#include <linux/fs.h>
33
34struct linux_binprm;
35struct cred;
36struct rlimit;
37struct siginfo;
38struct sem_array;
39struct sembuf;
40struct kern_ipc_perm;
41struct audit_context;
42struct super_block;
43struct inode;
44struct dentry;
45struct file;
46struct vfsmount;
47struct path;
48struct qstr;
49struct iattr;
50struct fown_struct;
51struct file_operations;
52struct shmid_kernel;
53struct msg_msg;
54struct msg_queue;
55struct xattr;
56struct xfrm_sec_ctx;
57struct mm_struct;
58
59/* If capable should audit the security request */
60#define SECURITY_CAP_NOAUDIT 0
61#define SECURITY_CAP_AUDIT 1
62
63/* LSM Agnostic defines for sb_set_mnt_opts */
64#define SECURITY_LSM_NATIVE_LABELS 1
65
66struct ctl_table;
67struct audit_krule;
68struct user_namespace;
69struct timezone;
70
71/* These functions are in security/commoncap.c */
72extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
73 int cap, int audit);
74extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
75extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
76extern int cap_ptrace_traceme(struct task_struct *parent);
77extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
78extern int cap_capset(struct cred *new, const struct cred *old,
79 const kernel_cap_t *effective,
80 const kernel_cap_t *inheritable,
81 const kernel_cap_t *permitted);
82extern int cap_bprm_set_creds(struct linux_binprm *bprm);
83extern int cap_bprm_secureexec(struct linux_binprm *bprm);
84extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
85 const void *value, size_t size, int flags);
86extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
87extern int cap_inode_need_killpriv(struct dentry *dentry);
88extern int cap_inode_killpriv(struct dentry *dentry);
89extern int cap_mmap_addr(unsigned long addr);
90extern int cap_mmap_file(struct file *file, unsigned long reqprot,
91 unsigned long prot, unsigned long flags);
92extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
93extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
94 unsigned long arg4, unsigned long arg5);
95extern int cap_task_setscheduler(struct task_struct *p);
96extern int cap_task_setioprio(struct task_struct *p, int ioprio);
97extern int cap_task_setnice(struct task_struct *p, int nice);
98extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
99
100struct msghdr;
101struct sk_buff;
102struct sock;
103struct sockaddr;
104struct socket;
105struct flowi;
106struct dst_entry;
107struct xfrm_selector;
108struct xfrm_policy;
109struct xfrm_state;
110struct xfrm_user_sec_ctx;
111struct seq_file;
112
113#ifdef CONFIG_MMU
114extern unsigned long mmap_min_addr;
115extern unsigned long dac_mmap_min_addr;
116#else
117#define mmap_min_addr 0UL
118#define dac_mmap_min_addr 0UL
119#endif
120
121/*
122 * Values used in the task_security_ops calls
123 */
124/* setuid or setgid, id0 == uid or gid */
125#define LSM_SETID_ID 1
126
127/* setreuid or setregid, id0 == real, id1 == eff */
128#define LSM_SETID_RE 2
129
130/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
131#define LSM_SETID_RES 4
132
133/* setfsuid or setfsgid, id0 == fsuid or fsgid */
134#define LSM_SETID_FS 8
135
136/* forward declares to avoid warnings */
137struct sched_param;
138struct request_sock;
139
140/* bprm->unsafe reasons */
141#define LSM_UNSAFE_SHARE 1
142#define LSM_UNSAFE_PTRACE 2
143#define LSM_UNSAFE_PTRACE_CAP 4
144#define LSM_UNSAFE_NO_NEW_PRIVS 8
145
146#ifdef CONFIG_MMU
147extern int mmap_min_addr_handler(struct ctl_table *table, int write,
148 void __user *buffer, size_t *lenp, loff_t *ppos);
149#endif
150
151/* security_inode_init_security callback function to write xattrs */
152typedef int (*initxattrs) (struct inode *inode,
153 const struct xattr *xattr_array, void *fs_data);
154
155#ifdef CONFIG_SECURITY
156
157struct security_mnt_opts {
158 char **mnt_opts;
159 int *mnt_opts_flags;
160 int num_mnt_opts;
161};
162
163static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
164{
165 opts->mnt_opts = NULL;
166 opts->mnt_opts_flags = NULL;
167 opts->num_mnt_opts = 0;
168}
169
170static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
171{
172 int i;
173 if (opts->mnt_opts)
174 for (i = 0; i < opts->num_mnt_opts; i++)
175 kfree(opts->mnt_opts[i]);
176 kfree(opts->mnt_opts);
177 opts->mnt_opts = NULL;
178 kfree(opts->mnt_opts_flags);
179 opts->mnt_opts_flags = NULL;
180 opts->num_mnt_opts = 0;
181}
182
183/* prototypes */
184extern int security_init(void);
185
186/* Security operations */
187int security_binder_set_context_mgr(struct task_struct *mgr);
188int security_binder_transaction(struct task_struct *from,
189 struct task_struct *to);
190int security_binder_transfer_binder(struct task_struct *from,
191 struct task_struct *to);
192int security_binder_transfer_file(struct task_struct *from,
193 struct task_struct *to, struct file *file);
194int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
195int security_ptrace_traceme(struct task_struct *parent);
196int security_capget(struct task_struct *target,
197 kernel_cap_t *effective,
198 kernel_cap_t *inheritable,
199 kernel_cap_t *permitted);
200int security_capset(struct cred *new, const struct cred *old,
201 const kernel_cap_t *effective,
202 const kernel_cap_t *inheritable,
203 const kernel_cap_t *permitted);
204int security_capable(const struct cred *cred, struct user_namespace *ns,
205 int cap);
206int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
207 int cap);
208int security_quotactl(int cmds, int type, int id, struct super_block *sb);
209int security_quota_on(struct dentry *dentry);
210int security_syslog(int type);
211int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
212static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
213{
214 struct timespec64 ts64 = timespec_to_timespec64(*ts);
215
216 return security_settime64(&ts64, tz);
217}
218int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
219int security_bprm_set_creds(struct linux_binprm *bprm);
220int security_bprm_check(struct linux_binprm *bprm);
221void security_bprm_committing_creds(struct linux_binprm *bprm);
222void security_bprm_committed_creds(struct linux_binprm *bprm);
223int security_bprm_secureexec(struct linux_binprm *bprm);
224int security_sb_alloc(struct super_block *sb);
225void security_sb_free(struct super_block *sb);
226int security_sb_copy_data(char *orig, char *copy);
227int security_sb_remount(struct super_block *sb, void *data);
228int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
229int security_sb_show_options(struct seq_file *m, struct super_block *sb);
230int security_sb_statfs(struct dentry *dentry);
231int security_sb_mount(const char *dev_name, const struct path *path,
232 const char *type, unsigned long flags, void *data);
233int security_sb_umount(struct vfsmount *mnt, int flags);
234int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
235int security_sb_set_mnt_opts(struct super_block *sb,
236 struct security_mnt_opts *opts,
237 unsigned long kern_flags,
238 unsigned long *set_kern_flags);
239int security_sb_clone_mnt_opts(const struct super_block *oldsb,
240 struct super_block *newsb);
241int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
242int security_dentry_init_security(struct dentry *dentry, int mode,
243 struct qstr *name, void **ctx,
244 u32 *ctxlen);
245
246int security_inode_alloc(struct inode *inode);
247void security_inode_free(struct inode *inode);
248int security_inode_init_security(struct inode *inode, struct inode *dir,
249 const struct qstr *qstr,
250 initxattrs initxattrs, void *fs_data);
251int security_old_inode_init_security(struct inode *inode, struct inode *dir,
252 const struct qstr *qstr, const char **name,
253 void **value, size_t *len);
254int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
255int security_inode_link(struct dentry *old_dentry, struct inode *dir,
256 struct dentry *new_dentry);
257int security_inode_unlink(struct inode *dir, struct dentry *dentry);
258int security_inode_symlink(struct inode *dir, struct dentry *dentry,
259 const char *old_name);
260int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
261int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
262int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
263int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
264 struct inode *new_dir, struct dentry *new_dentry,
265 unsigned int flags);
266int security_inode_readlink(struct dentry *dentry);
267int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
268 bool rcu);
269int security_inode_permission(struct inode *inode, int mask);
270int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
271int security_inode_getattr(const struct path *path);
272int security_inode_setxattr(struct dentry *dentry, const char *name,
273 const void *value, size_t size, int flags);
274void security_inode_post_setxattr(struct dentry *dentry, const char *name,
275 const void *value, size_t size, int flags);
276int security_inode_getxattr(struct dentry *dentry, const char *name);
277int security_inode_listxattr(struct dentry *dentry);
278int security_inode_removexattr(struct dentry *dentry, const char *name);
279int security_inode_need_killpriv(struct dentry *dentry);
280int security_inode_killpriv(struct dentry *dentry);
281int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
282int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
283int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
284void security_inode_getsecid(struct inode *inode, u32 *secid);
285int security_file_permission(struct file *file, int mask);
286int security_file_alloc(struct file *file);
287void security_file_free(struct file *file);
288int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
289int security_mmap_file(struct file *file, unsigned long prot,
290 unsigned long flags);
291int security_mmap_addr(unsigned long addr);
292int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
293 unsigned long prot);
294int security_file_lock(struct file *file, unsigned int cmd);
295int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
296void security_file_set_fowner(struct file *file);
297int security_file_send_sigiotask(struct task_struct *tsk,
298 struct fown_struct *fown, int sig);
299int security_file_receive(struct file *file);
300int security_file_open(struct file *file, const struct cred *cred);
301int security_task_create(unsigned long clone_flags);
302void security_task_free(struct task_struct *task);
303int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
304void security_cred_free(struct cred *cred);
305int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
306void security_transfer_creds(struct cred *new, const struct cred *old);
307int security_kernel_act_as(struct cred *new, u32 secid);
308int security_kernel_create_files_as(struct cred *new, struct inode *inode);
309int security_kernel_module_request(char *kmod_name);
310int security_kernel_module_from_file(struct file *file);
311int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
312int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
313 enum kernel_read_file_id id);
314int security_task_fix_setuid(struct cred *new, const struct cred *old,
315 int flags);
316int security_task_setpgid(struct task_struct *p, pid_t pgid);
317int security_task_getpgid(struct task_struct *p);
318int security_task_getsid(struct task_struct *p);
319void security_task_getsecid(struct task_struct *p, u32 *secid);
320int security_task_setnice(struct task_struct *p, int nice);
321int security_task_setioprio(struct task_struct *p, int ioprio);
322int security_task_getioprio(struct task_struct *p);
323int security_task_setrlimit(struct task_struct *p, unsigned int resource,
324 struct rlimit *new_rlim);
325int security_task_setscheduler(struct task_struct *p);
326int security_task_getscheduler(struct task_struct *p);
327int security_task_movememory(struct task_struct *p);
328int security_task_kill(struct task_struct *p, struct siginfo *info,
329 int sig, u32 secid);
330int security_task_wait(struct task_struct *p);
331int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
332 unsigned long arg4, unsigned long arg5);
333void security_task_to_inode(struct task_struct *p, struct inode *inode);
334int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
335void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
336int security_msg_msg_alloc(struct msg_msg *msg);
337void security_msg_msg_free(struct msg_msg *msg);
338int security_msg_queue_alloc(struct msg_queue *msq);
339void security_msg_queue_free(struct msg_queue *msq);
340int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
341int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
342int security_msg_queue_msgsnd(struct msg_queue *msq,
343 struct msg_msg *msg, int msqflg);
344int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
345 struct task_struct *target, long type, int mode);
346int security_shm_alloc(struct shmid_kernel *shp);
347void security_shm_free(struct shmid_kernel *shp);
348int security_shm_associate(struct shmid_kernel *shp, int shmflg);
349int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
350int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
351int security_sem_alloc(struct sem_array *sma);
352void security_sem_free(struct sem_array *sma);
353int security_sem_associate(struct sem_array *sma, int semflg);
354int security_sem_semctl(struct sem_array *sma, int cmd);
355int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
356 unsigned nsops, int alter);
357void security_d_instantiate(struct dentry *dentry, struct inode *inode);
358int security_getprocattr(struct task_struct *p, char *name, char **value);
359int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
360int security_netlink_send(struct sock *sk, struct sk_buff *skb);
361int security_ismaclabel(const char *name);
362int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
363int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
364void security_release_secctx(char *secdata, u32 seclen);
365
366void security_inode_invalidate_secctx(struct inode *inode);
367int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
368int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
369int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
370#else /* CONFIG_SECURITY */
371struct security_mnt_opts {
372};
373
374static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
375{
376}
377
378static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
379{
380}
381
382/*
383 * This is the default capabilities functionality. Most of these functions
384 * are just stubbed out, but a few must call the proper capable code.
385 */
386
387static inline int security_init(void)
388{
389 return 0;
390}
391
392static inline int security_binder_set_context_mgr(struct task_struct *mgr)
393{
394 return 0;
395}
396
397static inline int security_binder_transaction(struct task_struct *from,
398 struct task_struct *to)
399{
400 return 0;
401}
402
403static inline int security_binder_transfer_binder(struct task_struct *from,
404 struct task_struct *to)
405{
406 return 0;
407}
408
409static inline int security_binder_transfer_file(struct task_struct *from,
410 struct task_struct *to,
411 struct file *file)
412{
413 return 0;
414}
415
416static inline int security_ptrace_access_check(struct task_struct *child,
417 unsigned int mode)
418{
419 return cap_ptrace_access_check(child, mode);
420}
421
422static inline int security_ptrace_traceme(struct task_struct *parent)
423{
424 return cap_ptrace_traceme(parent);
425}
426
427static inline int security_capget(struct task_struct *target,
428 kernel_cap_t *effective,
429 kernel_cap_t *inheritable,
430 kernel_cap_t *permitted)
431{
432 return cap_capget(target, effective, inheritable, permitted);
433}
434
435static inline int security_capset(struct cred *new,
436 const struct cred *old,
437 const kernel_cap_t *effective,
438 const kernel_cap_t *inheritable,
439 const kernel_cap_t *permitted)
440{
441 return cap_capset(new, old, effective, inheritable, permitted);
442}
443
444static inline int security_capable(const struct cred *cred,
445 struct user_namespace *ns, int cap)
446{
447 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
448}
449
450static inline int security_capable_noaudit(const struct cred *cred,
451 struct user_namespace *ns, int cap) {
452 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
453}
454
455static inline int security_quotactl(int cmds, int type, int id,
456 struct super_block *sb)
457{
458 return 0;
459}
460
461static inline int security_quota_on(struct dentry *dentry)
462{
463 return 0;
464}
465
466static inline int security_syslog(int type)
467{
468 return 0;
469}
470
471static inline int security_settime64(const struct timespec64 *ts,
472 const struct timezone *tz)
473{
474 return cap_settime(ts, tz);
475}
476
477static inline int security_settime(const struct timespec *ts,
478 const struct timezone *tz)
479{
480 struct timespec64 ts64 = timespec_to_timespec64(*ts);
481
482 return cap_settime(&ts64, tz);
483}
484
485static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
486{
487 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
488}
489
490static inline int security_bprm_set_creds(struct linux_binprm *bprm)
491{
492 return cap_bprm_set_creds(bprm);
493}
494
495static inline int security_bprm_check(struct linux_binprm *bprm)
496{
497 return 0;
498}
499
500static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
501{
502}
503
504static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
505{
506}
507
508static inline int security_bprm_secureexec(struct linux_binprm *bprm)
509{
510 return cap_bprm_secureexec(bprm);
511}
512
513static inline int security_sb_alloc(struct super_block *sb)
514{
515 return 0;
516}
517
518static inline void security_sb_free(struct super_block *sb)
519{ }
520
521static inline int security_sb_copy_data(char *orig, char *copy)
522{
523 return 0;
524}
525
526static inline int security_sb_remount(struct super_block *sb, void *data)
527{
528 return 0;
529}
530
531static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
532{
533 return 0;
534}
535
536static inline int security_sb_show_options(struct seq_file *m,
537 struct super_block *sb)
538{
539 return 0;
540}
541
542static inline int security_sb_statfs(struct dentry *dentry)
543{
544 return 0;
545}
546
547static inline int security_sb_mount(const char *dev_name, const struct path *path,
548 const char *type, unsigned long flags,
549 void *data)
550{
551 return 0;
552}
553
554static inline int security_sb_umount(struct vfsmount *mnt, int flags)
555{
556 return 0;
557}
558
559static inline int security_sb_pivotroot(const struct path *old_path,
560 const struct path *new_path)
561{
562 return 0;
563}
564
565static inline int security_sb_set_mnt_opts(struct super_block *sb,
566 struct security_mnt_opts *opts,
567 unsigned long kern_flags,
568 unsigned long *set_kern_flags)
569{
570 return 0;
571}
572
573static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
574 struct super_block *newsb)
575{
576 return 0;
577}
578
579static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
580{
581 return 0;
582}
583
584static inline int security_inode_alloc(struct inode *inode)
585{
586 return 0;
587}
588
589static inline void security_inode_free(struct inode *inode)
590{ }
591
592static inline int security_dentry_init_security(struct dentry *dentry,
593 int mode,
594 struct qstr *name,
595 void **ctx,
596 u32 *ctxlen)
597{
598 return -EOPNOTSUPP;
599}
600
601
602static inline int security_inode_init_security(struct inode *inode,
603 struct inode *dir,
604 const struct qstr *qstr,
605 const initxattrs xattrs,
606 void *fs_data)
607{
608 return 0;
609}
610
611static inline int security_old_inode_init_security(struct inode *inode,
612 struct inode *dir,
613 const struct qstr *qstr,
614 const char **name,
615 void **value, size_t *len)
616{
617 return -EOPNOTSUPP;
618}
619
620static inline int security_inode_create(struct inode *dir,
621 struct dentry *dentry,
622 umode_t mode)
623{
624 return 0;
625}
626
627static inline int security_inode_link(struct dentry *old_dentry,
628 struct inode *dir,
629 struct dentry *new_dentry)
630{
631 return 0;
632}
633
634static inline int security_inode_unlink(struct inode *dir,
635 struct dentry *dentry)
636{
637 return 0;
638}
639
640static inline int security_inode_symlink(struct inode *dir,
641 struct dentry *dentry,
642 const char *old_name)
643{
644 return 0;
645}
646
647static inline int security_inode_mkdir(struct inode *dir,
648 struct dentry *dentry,
649 int mode)
650{
651 return 0;
652}
653
654static inline int security_inode_rmdir(struct inode *dir,
655 struct dentry *dentry)
656{
657 return 0;
658}
659
660static inline int security_inode_mknod(struct inode *dir,
661 struct dentry *dentry,
662 int mode, dev_t dev)
663{
664 return 0;
665}
666
667static inline int security_inode_rename(struct inode *old_dir,
668 struct dentry *old_dentry,
669 struct inode *new_dir,
670 struct dentry *new_dentry,
671 unsigned int flags)
672{
673 return 0;
674}
675
676static inline int security_inode_readlink(struct dentry *dentry)
677{
678 return 0;
679}
680
681static inline int security_inode_follow_link(struct dentry *dentry,
682 struct inode *inode,
683 bool rcu)
684{
685 return 0;
686}
687
688static inline int security_inode_permission(struct inode *inode, int mask)
689{
690 return 0;
691}
692
693static inline int security_inode_setattr(struct dentry *dentry,
694 struct iattr *attr)
695{
696 return 0;
697}
698
699static inline int security_inode_getattr(const struct path *path)
700{
701 return 0;
702}
703
704static inline int security_inode_setxattr(struct dentry *dentry,
705 const char *name, const void *value, size_t size, int flags)
706{
707 return cap_inode_setxattr(dentry, name, value, size, flags);
708}
709
710static inline void security_inode_post_setxattr(struct dentry *dentry,
711 const char *name, const void *value, size_t size, int flags)
712{ }
713
714static inline int security_inode_getxattr(struct dentry *dentry,
715 const char *name)
716{
717 return 0;
718}
719
720static inline int security_inode_listxattr(struct dentry *dentry)
721{
722 return 0;
723}
724
725static inline int security_inode_removexattr(struct dentry *dentry,
726 const char *name)
727{
728 return cap_inode_removexattr(dentry, name);
729}
730
731static inline int security_inode_need_killpriv(struct dentry *dentry)
732{
733 return cap_inode_need_killpriv(dentry);
734}
735
736static inline int security_inode_killpriv(struct dentry *dentry)
737{
738 return cap_inode_killpriv(dentry);
739}
740
741static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
742{
743 return -EOPNOTSUPP;
744}
745
746static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
747{
748 return -EOPNOTSUPP;
749}
750
751static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
752{
753 return 0;
754}
755
756static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
757{
758 *secid = 0;
759}
760
761static inline int security_file_permission(struct file *file, int mask)
762{
763 return 0;
764}
765
766static inline int security_file_alloc(struct file *file)
767{
768 return 0;
769}
770
771static inline void security_file_free(struct file *file)
772{ }
773
774static inline int security_file_ioctl(struct file *file, unsigned int cmd,
775 unsigned long arg)
776{
777 return 0;
778}
779
780static inline int security_mmap_file(struct file *file, unsigned long prot,
781 unsigned long flags)
782{
783 return 0;
784}
785
786static inline int security_mmap_addr(unsigned long addr)
787{
788 return cap_mmap_addr(addr);
789}
790
791static inline int security_file_mprotect(struct vm_area_struct *vma,
792 unsigned long reqprot,
793 unsigned long prot)
794{
795 return 0;
796}
797
798static inline int security_file_lock(struct file *file, unsigned int cmd)
799{
800 return 0;
801}
802
803static inline int security_file_fcntl(struct file *file, unsigned int cmd,
804 unsigned long arg)
805{
806 return 0;
807}
808
809static inline void security_file_set_fowner(struct file *file)
810{
811 return;
812}
813
814static inline int security_file_send_sigiotask(struct task_struct *tsk,
815 struct fown_struct *fown,
816 int sig)
817{
818 return 0;
819}
820
821static inline int security_file_receive(struct file *file)
822{
823 return 0;
824}
825
826static inline int security_file_open(struct file *file,
827 const struct cred *cred)
828{
829 return 0;
830}
831
832static inline int security_task_create(unsigned long clone_flags)
833{
834 return 0;
835}
836
837static inline void security_task_free(struct task_struct *task)
838{ }
839
840static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
841{
842 return 0;
843}
844
845static inline void security_cred_free(struct cred *cred)
846{ }
847
848static inline int security_prepare_creds(struct cred *new,
849 const struct cred *old,
850 gfp_t gfp)
851{
852 return 0;
853}
854
855static inline void security_transfer_creds(struct cred *new,
856 const struct cred *old)
857{
858}
859
860static inline int security_kernel_act_as(struct cred *cred, u32 secid)
861{
862 return 0;
863}
864
865static inline int security_kernel_create_files_as(struct cred *cred,
866 struct inode *inode)
867{
868 return 0;
869}
870
871static inline int security_kernel_module_request(char *kmod_name)
872{
873 return 0;
874}
875
876static inline int security_kernel_read_file(struct file *file,
877 enum kernel_read_file_id id)
878{
879 return 0;
880}
881
882static inline int security_kernel_post_read_file(struct file *file,
883 char *buf, loff_t size,
884 enum kernel_read_file_id id)
885{
886 return 0;
887}
888
889static inline int security_task_fix_setuid(struct cred *new,
890 const struct cred *old,
891 int flags)
892{
893 return cap_task_fix_setuid(new, old, flags);
894}
895
896static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
897{
898 return 0;
899}
900
901static inline int security_task_getpgid(struct task_struct *p)
902{
903 return 0;
904}
905
906static inline int security_task_getsid(struct task_struct *p)
907{
908 return 0;
909}
910
911static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
912{
913 *secid = 0;
914}
915
916static inline int security_task_setnice(struct task_struct *p, int nice)
917{
918 return cap_task_setnice(p, nice);
919}
920
921static inline int security_task_setioprio(struct task_struct *p, int ioprio)
922{
923 return cap_task_setioprio(p, ioprio);
924}
925
926static inline int security_task_getioprio(struct task_struct *p)
927{
928 return 0;
929}
930
931static inline int security_task_setrlimit(struct task_struct *p,
932 unsigned int resource,
933 struct rlimit *new_rlim)
934{
935 return 0;
936}
937
938static inline int security_task_setscheduler(struct task_struct *p)
939{
940 return cap_task_setscheduler(p);
941}
942
943static inline int security_task_getscheduler(struct task_struct *p)
944{
945 return 0;
946}
947
948static inline int security_task_movememory(struct task_struct *p)
949{
950 return 0;
951}
952
953static inline int security_task_kill(struct task_struct *p,
954 struct siginfo *info, int sig,
955 u32 secid)
956{
957 return 0;
958}
959
960static inline int security_task_wait(struct task_struct *p)
961{
962 return 0;
963}
964
965static inline int security_task_prctl(int option, unsigned long arg2,
966 unsigned long arg3,
967 unsigned long arg4,
968 unsigned long arg5)
969{
970 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
971}
972
973static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
974{ }
975
976static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
977 short flag)
978{
979 return 0;
980}
981
982static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
983{
984 *secid = 0;
985}
986
987static inline int security_msg_msg_alloc(struct msg_msg *msg)
988{
989 return 0;
990}
991
992static inline void security_msg_msg_free(struct msg_msg *msg)
993{ }
994
995static inline int security_msg_queue_alloc(struct msg_queue *msq)
996{
997 return 0;
998}
999
1000static inline void security_msg_queue_free(struct msg_queue *msq)
1001{ }
1002
1003static inline int security_msg_queue_associate(struct msg_queue *msq,
1004 int msqflg)
1005{
1006 return 0;
1007}
1008
1009static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1010{
1011 return 0;
1012}
1013
1014static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1015 struct msg_msg *msg, int msqflg)
1016{
1017 return 0;
1018}
1019
1020static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1021 struct msg_msg *msg,
1022 struct task_struct *target,
1023 long type, int mode)
1024{
1025 return 0;
1026}
1027
1028static inline int security_shm_alloc(struct shmid_kernel *shp)
1029{
1030 return 0;
1031}
1032
1033static inline void security_shm_free(struct shmid_kernel *shp)
1034{ }
1035
1036static inline int security_shm_associate(struct shmid_kernel *shp,
1037 int shmflg)
1038{
1039 return 0;
1040}
1041
1042static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1043{
1044 return 0;
1045}
1046
1047static inline int security_shm_shmat(struct shmid_kernel *shp,
1048 char __user *shmaddr, int shmflg)
1049{
1050 return 0;
1051}
1052
1053static inline int security_sem_alloc(struct sem_array *sma)
1054{
1055 return 0;
1056}
1057
1058static inline void security_sem_free(struct sem_array *sma)
1059{ }
1060
1061static inline int security_sem_associate(struct sem_array *sma, int semflg)
1062{
1063 return 0;
1064}
1065
1066static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1067{
1068 return 0;
1069}
1070
1071static inline int security_sem_semop(struct sem_array *sma,
1072 struct sembuf *sops, unsigned nsops,
1073 int alter)
1074{
1075 return 0;
1076}
1077
1078static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1079{ }
1080
1081static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1082{
1083 return -EINVAL;
1084}
1085
1086static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1087{
1088 return -EINVAL;
1089}
1090
1091static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1092{
1093 return 0;
1094}
1095
1096static inline int security_ismaclabel(const char *name)
1097{
1098 return 0;
1099}
1100
1101static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1102{
1103 return -EOPNOTSUPP;
1104}
1105
1106static inline int security_secctx_to_secid(const char *secdata,
1107 u32 seclen,
1108 u32 *secid)
1109{
1110 return -EOPNOTSUPP;
1111}
1112
1113static inline void security_release_secctx(char *secdata, u32 seclen)
1114{
1115}
1116
1117static inline void security_inode_invalidate_secctx(struct inode *inode)
1118{
1119}
1120
1121static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1122{
1123 return -EOPNOTSUPP;
1124}
1125static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1126{
1127 return -EOPNOTSUPP;
1128}
1129static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1130{
1131 return -EOPNOTSUPP;
1132}
1133#endif /* CONFIG_SECURITY */
1134
1135#ifdef CONFIG_SECURITY_NETWORK
1136
1137int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1138int security_unix_may_send(struct socket *sock, struct socket *other);
1139int security_socket_create(int family, int type, int protocol, int kern);
1140int security_socket_post_create(struct socket *sock, int family,
1141 int type, int protocol, int kern);
1142int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1143int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1144int security_socket_listen(struct socket *sock, int backlog);
1145int security_socket_accept(struct socket *sock, struct socket *newsock);
1146int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1147int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1148 int size, int flags);
1149int security_socket_getsockname(struct socket *sock);
1150int security_socket_getpeername(struct socket *sock);
1151int security_socket_getsockopt(struct socket *sock, int level, int optname);
1152int security_socket_setsockopt(struct socket *sock, int level, int optname);
1153int security_socket_shutdown(struct socket *sock, int how);
1154int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1155int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1156 int __user *optlen, unsigned len);
1157int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1158int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1159void security_sk_free(struct sock *sk);
1160void security_sk_clone(const struct sock *sk, struct sock *newsk);
1161void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1162void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1163void security_sock_graft(struct sock*sk, struct socket *parent);
1164int security_inet_conn_request(struct sock *sk,
1165 struct sk_buff *skb, struct request_sock *req);
1166void security_inet_csk_clone(struct sock *newsk,
1167 const struct request_sock *req);
1168void security_inet_conn_established(struct sock *sk,
1169 struct sk_buff *skb);
1170int security_secmark_relabel_packet(u32 secid);
1171void security_secmark_refcount_inc(void);
1172void security_secmark_refcount_dec(void);
1173int security_tun_dev_alloc_security(void **security);
1174void security_tun_dev_free_security(void *security);
1175int security_tun_dev_create(void);
1176int security_tun_dev_attach_queue(void *security);
1177int security_tun_dev_attach(struct sock *sk, void *security);
1178int security_tun_dev_open(void *security);
1179
1180#else /* CONFIG_SECURITY_NETWORK */
1181static inline int security_unix_stream_connect(struct sock *sock,
1182 struct sock *other,
1183 struct sock *newsk)
1184{
1185 return 0;
1186}
1187
1188static inline int security_unix_may_send(struct socket *sock,
1189 struct socket *other)
1190{
1191 return 0;
1192}
1193
1194static inline int security_socket_create(int family, int type,
1195 int protocol, int kern)
1196{
1197 return 0;
1198}
1199
1200static inline int security_socket_post_create(struct socket *sock,
1201 int family,
1202 int type,
1203 int protocol, int kern)
1204{
1205 return 0;
1206}
1207
1208static inline int security_socket_bind(struct socket *sock,
1209 struct sockaddr *address,
1210 int addrlen)
1211{
1212 return 0;
1213}
1214
1215static inline int security_socket_connect(struct socket *sock,
1216 struct sockaddr *address,
1217 int addrlen)
1218{
1219 return 0;
1220}
1221
1222static inline int security_socket_listen(struct socket *sock, int backlog)
1223{
1224 return 0;
1225}
1226
1227static inline int security_socket_accept(struct socket *sock,
1228 struct socket *newsock)
1229{
1230 return 0;
1231}
1232
1233static inline int security_socket_sendmsg(struct socket *sock,
1234 struct msghdr *msg, int size)
1235{
1236 return 0;
1237}
1238
1239static inline int security_socket_recvmsg(struct socket *sock,
1240 struct msghdr *msg, int size,
1241 int flags)
1242{
1243 return 0;
1244}
1245
1246static inline int security_socket_getsockname(struct socket *sock)
1247{
1248 return 0;
1249}
1250
1251static inline int security_socket_getpeername(struct socket *sock)
1252{
1253 return 0;
1254}
1255
1256static inline int security_socket_getsockopt(struct socket *sock,
1257 int level, int optname)
1258{
1259 return 0;
1260}
1261
1262static inline int security_socket_setsockopt(struct socket *sock,
1263 int level, int optname)
1264{
1265 return 0;
1266}
1267
1268static inline int security_socket_shutdown(struct socket *sock, int how)
1269{
1270 return 0;
1271}
1272static inline int security_sock_rcv_skb(struct sock *sk,
1273 struct sk_buff *skb)
1274{
1275 return 0;
1276}
1277
1278static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1279 int __user *optlen, unsigned len)
1280{
1281 return -ENOPROTOOPT;
1282}
1283
1284static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1285{
1286 return -ENOPROTOOPT;
1287}
1288
1289static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1290{
1291 return 0;
1292}
1293
1294static inline void security_sk_free(struct sock *sk)
1295{
1296}
1297
1298static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1299{
1300}
1301
1302static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1303{
1304}
1305
1306static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1307{
1308}
1309
1310static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1311{
1312}
1313
1314static inline int security_inet_conn_request(struct sock *sk,
1315 struct sk_buff *skb, struct request_sock *req)
1316{
1317 return 0;
1318}
1319
1320static inline void security_inet_csk_clone(struct sock *newsk,
1321 const struct request_sock *req)
1322{
1323}
1324
1325static inline void security_inet_conn_established(struct sock *sk,
1326 struct sk_buff *skb)
1327{
1328}
1329
1330static inline int security_secmark_relabel_packet(u32 secid)
1331{
1332 return 0;
1333}
1334
1335static inline void security_secmark_refcount_inc(void)
1336{
1337}
1338
1339static inline void security_secmark_refcount_dec(void)
1340{
1341}
1342
1343static inline int security_tun_dev_alloc_security(void **security)
1344{
1345 return 0;
1346}
1347
1348static inline void security_tun_dev_free_security(void *security)
1349{
1350}
1351
1352static inline int security_tun_dev_create(void)
1353{
1354 return 0;
1355}
1356
1357static inline int security_tun_dev_attach_queue(void *security)
1358{
1359 return 0;
1360}
1361
1362static inline int security_tun_dev_attach(struct sock *sk, void *security)
1363{
1364 return 0;
1365}
1366
1367static inline int security_tun_dev_open(void *security)
1368{
1369 return 0;
1370}
1371#endif /* CONFIG_SECURITY_NETWORK */
1372
1373#ifdef CONFIG_SECURITY_NETWORK_XFRM
1374
1375int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1376 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1377int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1378void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1379int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1380int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1381int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1382 struct xfrm_sec_ctx *polsec, u32 secid);
1383int security_xfrm_state_delete(struct xfrm_state *x);
1384void security_xfrm_state_free(struct xfrm_state *x);
1385int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1386int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1387 struct xfrm_policy *xp,
1388 const struct flowi *fl);
1389int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1390void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1391
1392#else /* CONFIG_SECURITY_NETWORK_XFRM */
1393
1394static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1395 struct xfrm_user_sec_ctx *sec_ctx,
1396 gfp_t gfp)
1397{
1398 return 0;
1399}
1400
1401static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1402{
1403 return 0;
1404}
1405
1406static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1407{
1408}
1409
1410static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1411{
1412 return 0;
1413}
1414
1415static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1416 struct xfrm_user_sec_ctx *sec_ctx)
1417{
1418 return 0;
1419}
1420
1421static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1422 struct xfrm_sec_ctx *polsec, u32 secid)
1423{
1424 return 0;
1425}
1426
1427static inline void security_xfrm_state_free(struct xfrm_state *x)
1428{
1429}
1430
1431static inline int security_xfrm_state_delete(struct xfrm_state *x)
1432{
1433 return 0;
1434}
1435
1436static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1437{
1438 return 0;
1439}
1440
1441static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1442 struct xfrm_policy *xp, const struct flowi *fl)
1443{
1444 return 1;
1445}
1446
1447static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1448{
1449 return 0;
1450}
1451
1452static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1453{
1454}
1455
1456#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1457
1458#ifdef CONFIG_SECURITY_PATH
1459int security_path_unlink(const struct path *dir, struct dentry *dentry);
1460int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1461int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1462int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1463 unsigned int dev);
1464int security_path_truncate(const struct path *path);
1465int security_path_symlink(const struct path *dir, struct dentry *dentry,
1466 const char *old_name);
1467int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1468 struct dentry *new_dentry);
1469int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1470 const struct path *new_dir, struct dentry *new_dentry,
1471 unsigned int flags);
1472int security_path_chmod(const struct path *path, umode_t mode);
1473int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1474int security_path_chroot(const struct path *path);
1475#else /* CONFIG_SECURITY_PATH */
1476static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1477{
1478 return 0;
1479}
1480
1481static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1482 umode_t mode)
1483{
1484 return 0;
1485}
1486
1487static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1488{
1489 return 0;
1490}
1491
1492static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1493 umode_t mode, unsigned int dev)
1494{
1495 return 0;
1496}
1497
1498static inline int security_path_truncate(const struct path *path)
1499{
1500 return 0;
1501}
1502
1503static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1504 const char *old_name)
1505{
1506 return 0;
1507}
1508
1509static inline int security_path_link(struct dentry *old_dentry,
1510 const struct path *new_dir,
1511 struct dentry *new_dentry)
1512{
1513 return 0;
1514}
1515
1516static inline int security_path_rename(const struct path *old_dir,
1517 struct dentry *old_dentry,
1518 const struct path *new_dir,
1519 struct dentry *new_dentry,
1520 unsigned int flags)
1521{
1522 return 0;
1523}
1524
1525static inline int security_path_chmod(const struct path *path, umode_t mode)
1526{
1527 return 0;
1528}
1529
1530static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1531{
1532 return 0;
1533}
1534
1535static inline int security_path_chroot(const struct path *path)
1536{
1537 return 0;
1538}
1539#endif /* CONFIG_SECURITY_PATH */
1540
1541#ifdef CONFIG_KEYS
1542#ifdef CONFIG_SECURITY
1543
1544int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1545void security_key_free(struct key *key);
1546int security_key_permission(key_ref_t key_ref,
1547 const struct cred *cred, unsigned perm);
1548int security_key_getsecurity(struct key *key, char **_buffer);
1549
1550#else
1551
1552static inline int security_key_alloc(struct key *key,
1553 const struct cred *cred,
1554 unsigned long flags)
1555{
1556 return 0;
1557}
1558
1559static inline void security_key_free(struct key *key)
1560{
1561}
1562
1563static inline int security_key_permission(key_ref_t key_ref,
1564 const struct cred *cred,
1565 unsigned perm)
1566{
1567 return 0;
1568}
1569
1570static inline int security_key_getsecurity(struct key *key, char **_buffer)
1571{
1572 *_buffer = NULL;
1573 return 0;
1574}
1575
1576#endif
1577#endif /* CONFIG_KEYS */
1578
1579#ifdef CONFIG_AUDIT
1580#ifdef CONFIG_SECURITY
1581int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1582int security_audit_rule_known(struct audit_krule *krule);
1583int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1584 struct audit_context *actx);
1585void security_audit_rule_free(void *lsmrule);
1586
1587#else
1588
1589static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1590 void **lsmrule)
1591{
1592 return 0;
1593}
1594
1595static inline int security_audit_rule_known(struct audit_krule *krule)
1596{
1597 return 0;
1598}
1599
1600static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1601 void *lsmrule, struct audit_context *actx)
1602{
1603 return 0;
1604}
1605
1606static inline void security_audit_rule_free(void *lsmrule)
1607{ }
1608
1609#endif /* CONFIG_SECURITY */
1610#endif /* CONFIG_AUDIT */
1611
1612#ifdef CONFIG_SECURITYFS
1613
1614extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1615 struct dentry *parent, void *data,
1616 const struct file_operations *fops);
1617extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1618extern void securityfs_remove(struct dentry *dentry);
1619
1620#else /* CONFIG_SECURITYFS */
1621
1622static inline struct dentry *securityfs_create_dir(const char *name,
1623 struct dentry *parent)
1624{
1625 return ERR_PTR(-ENODEV);
1626}
1627
1628static inline struct dentry *securityfs_create_file(const char *name,
1629 umode_t mode,
1630 struct dentry *parent,
1631 void *data,
1632 const struct file_operations *fops)
1633{
1634 return ERR_PTR(-ENODEV);
1635}
1636
1637static inline void securityfs_remove(struct dentry *dentry)
1638{}
1639
1640#endif
1641
1642#ifdef CONFIG_SECURITY
1643
1644static inline char *alloc_secdata(void)
1645{
1646 return (char *)get_zeroed_page(GFP_KERNEL);
1647}
1648
1649static inline void free_secdata(void *secdata)
1650{
1651 free_page((unsigned long)secdata);
1652}
1653
1654#else
1655
1656static inline char *alloc_secdata(void)
1657{
1658 return (char *)1;
1659}
1660
1661static inline void free_secdata(void *secdata)
1662{ }
1663#endif /* CONFIG_SECURITY */
1664
1665#endif /* ! __LINUX_SECURITY_H */
1666