projects/linux·blob v4.11-rc2 · refs

1682 lines · 44.5 KiB

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_NO_NEW_PRIVS 4
144
145#ifdef CONFIG_MMU
146extern int mmap_min_addr_handler(struct ctl_table *table, int write,
147 void __user *buffer, size_t *lenp, loff_t *ppos);
148#endif
149
150/* security_inode_init_security callback function to write xattrs */
151typedef int (*initxattrs) (struct inode *inode,
152 const struct xattr *xattr_array, void *fs_data);
153
154#ifdef CONFIG_SECURITY
155
156struct security_mnt_opts {
157 char **mnt_opts;
158 int *mnt_opts_flags;
159 int num_mnt_opts;
160};
161
162static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
163{
164 opts->mnt_opts = NULL;
165 opts->mnt_opts_flags = NULL;
166 opts->num_mnt_opts = 0;
167}
168
169static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
170{
171 int i;
172 if (opts->mnt_opts)
173 for (i = 0; i < opts->num_mnt_opts; i++)
174 kfree(opts->mnt_opts[i]);
175 kfree(opts->mnt_opts);
176 opts->mnt_opts = NULL;
177 kfree(opts->mnt_opts_flags);
178 opts->mnt_opts_flags = NULL;
179 opts->num_mnt_opts = 0;
180}
181
182/* prototypes */
183extern int security_init(void);
184
185/* Security operations */
186int security_binder_set_context_mgr(struct task_struct *mgr);
187int security_binder_transaction(struct task_struct *from,
188 struct task_struct *to);
189int security_binder_transfer_binder(struct task_struct *from,
190 struct task_struct *to);
191int security_binder_transfer_file(struct task_struct *from,
192 struct task_struct *to, struct file *file);
193int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
194int security_ptrace_traceme(struct task_struct *parent);
195int security_capget(struct task_struct *target,
196 kernel_cap_t *effective,
197 kernel_cap_t *inheritable,
198 kernel_cap_t *permitted);
199int security_capset(struct cred *new, const struct cred *old,
200 const kernel_cap_t *effective,
201 const kernel_cap_t *inheritable,
202 const kernel_cap_t *permitted);
203int security_capable(const struct cred *cred, struct user_namespace *ns,
204 int cap);
205int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
206 int cap);
207int security_quotactl(int cmds, int type, int id, struct super_block *sb);
208int security_quota_on(struct dentry *dentry);
209int security_syslog(int type);
210int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
211static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
212{
213 struct timespec64 ts64 = timespec_to_timespec64(*ts);
214
215 return security_settime64(&ts64, tz);
216}
217int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
218int security_bprm_set_creds(struct linux_binprm *bprm);
219int security_bprm_check(struct linux_binprm *bprm);
220void security_bprm_committing_creds(struct linux_binprm *bprm);
221void security_bprm_committed_creds(struct linux_binprm *bprm);
222int security_bprm_secureexec(struct linux_binprm *bprm);
223int security_sb_alloc(struct super_block *sb);
224void security_sb_free(struct super_block *sb);
225int security_sb_copy_data(char *orig, char *copy);
226int security_sb_remount(struct super_block *sb, void *data);
227int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
228int security_sb_show_options(struct seq_file *m, struct super_block *sb);
229int security_sb_statfs(struct dentry *dentry);
230int security_sb_mount(const char *dev_name, const struct path *path,
231 const char *type, unsigned long flags, void *data);
232int security_sb_umount(struct vfsmount *mnt, int flags);
233int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
234int security_sb_set_mnt_opts(struct super_block *sb,
235 struct security_mnt_opts *opts,
236 unsigned long kern_flags,
237 unsigned long *set_kern_flags);
238int security_sb_clone_mnt_opts(const struct super_block *oldsb,
239 struct super_block *newsb);
240int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
241int security_dentry_init_security(struct dentry *dentry, int mode,
242 const struct qstr *name, void **ctx,
243 u32 *ctxlen);
244int security_dentry_create_files_as(struct dentry *dentry, int mode,
245 struct qstr *name,
246 const struct cred *old,
247 struct cred *new);
248
249int security_inode_alloc(struct inode *inode);
250void security_inode_free(struct inode *inode);
251int security_inode_init_security(struct inode *inode, struct inode *dir,
252 const struct qstr *qstr,
253 initxattrs initxattrs, void *fs_data);
254int security_old_inode_init_security(struct inode *inode, struct inode *dir,
255 const struct qstr *qstr, const char **name,
256 void **value, size_t *len);
257int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
258int security_inode_link(struct dentry *old_dentry, struct inode *dir,
259 struct dentry *new_dentry);
260int security_inode_unlink(struct inode *dir, struct dentry *dentry);
261int security_inode_symlink(struct inode *dir, struct dentry *dentry,
262 const char *old_name);
263int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
264int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
265int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
266int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
267 struct inode *new_dir, struct dentry *new_dentry,
268 unsigned int flags);
269int security_inode_readlink(struct dentry *dentry);
270int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
271 bool rcu);
272int security_inode_permission(struct inode *inode, int mask);
273int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
274int security_inode_getattr(const struct path *path);
275int security_inode_setxattr(struct dentry *dentry, const char *name,
276 const void *value, size_t size, int flags);
277void security_inode_post_setxattr(struct dentry *dentry, const char *name,
278 const void *value, size_t size, int flags);
279int security_inode_getxattr(struct dentry *dentry, const char *name);
280int security_inode_listxattr(struct dentry *dentry);
281int security_inode_removexattr(struct dentry *dentry, const char *name);
282int security_inode_need_killpriv(struct dentry *dentry);
283int security_inode_killpriv(struct dentry *dentry);
284int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
285int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
286int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
287void security_inode_getsecid(struct inode *inode, u32 *secid);
288int security_inode_copy_up(struct dentry *src, struct cred **new);
289int security_inode_copy_up_xattr(const char *name);
290int security_file_permission(struct file *file, int mask);
291int security_file_alloc(struct file *file);
292void security_file_free(struct file *file);
293int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
294int security_mmap_file(struct file *file, unsigned long prot,
295 unsigned long flags);
296int security_mmap_addr(unsigned long addr);
297int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
298 unsigned long prot);
299int security_file_lock(struct file *file, unsigned int cmd);
300int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
301void security_file_set_fowner(struct file *file);
302int security_file_send_sigiotask(struct task_struct *tsk,
303 struct fown_struct *fown, int sig);
304int security_file_receive(struct file *file);
305int security_file_open(struct file *file, const struct cred *cred);
306int security_task_create(unsigned long clone_flags);
307void security_task_free(struct task_struct *task);
308int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
309void security_cred_free(struct cred *cred);
310int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
311void security_transfer_creds(struct cred *new, const struct cred *old);
312int security_kernel_act_as(struct cred *new, u32 secid);
313int security_kernel_create_files_as(struct cred *new, struct inode *inode);
314int security_kernel_module_request(char *kmod_name);
315int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
316int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
317 enum kernel_read_file_id id);
318int security_task_fix_setuid(struct cred *new, const struct cred *old,
319 int flags);
320int security_task_setpgid(struct task_struct *p, pid_t pgid);
321int security_task_getpgid(struct task_struct *p);
322int security_task_getsid(struct task_struct *p);
323void security_task_getsecid(struct task_struct *p, u32 *secid);
324int security_task_setnice(struct task_struct *p, int nice);
325int security_task_setioprio(struct task_struct *p, int ioprio);
326int security_task_getioprio(struct task_struct *p);
327int security_task_setrlimit(struct task_struct *p, unsigned int resource,
328 struct rlimit *new_rlim);
329int security_task_setscheduler(struct task_struct *p);
330int security_task_getscheduler(struct task_struct *p);
331int security_task_movememory(struct task_struct *p);
332int security_task_kill(struct task_struct *p, struct siginfo *info,
333 int sig, u32 secid);
334int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
335 unsigned long arg4, unsigned long arg5);
336void security_task_to_inode(struct task_struct *p, struct inode *inode);
337int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
338void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
339int security_msg_msg_alloc(struct msg_msg *msg);
340void security_msg_msg_free(struct msg_msg *msg);
341int security_msg_queue_alloc(struct msg_queue *msq);
342void security_msg_queue_free(struct msg_queue *msq);
343int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
344int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
345int security_msg_queue_msgsnd(struct msg_queue *msq,
346 struct msg_msg *msg, int msqflg);
347int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
348 struct task_struct *target, long type, int mode);
349int security_shm_alloc(struct shmid_kernel *shp);
350void security_shm_free(struct shmid_kernel *shp);
351int security_shm_associate(struct shmid_kernel *shp, int shmflg);
352int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
353int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
354int security_sem_alloc(struct sem_array *sma);
355void security_sem_free(struct sem_array *sma);
356int security_sem_associate(struct sem_array *sma, int semflg);
357int security_sem_semctl(struct sem_array *sma, int cmd);
358int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
359 unsigned nsops, int alter);
360void security_d_instantiate(struct dentry *dentry, struct inode *inode);
361int security_getprocattr(struct task_struct *p, char *name, char **value);
362int security_setprocattr(const char *name, void *value, size_t size);
363int security_netlink_send(struct sock *sk, struct sk_buff *skb);
364int security_ismaclabel(const char *name);
365int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
366int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
367void security_release_secctx(char *secdata, u32 seclen);
368
369void security_inode_invalidate_secctx(struct inode *inode);
370int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
371int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
372int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
373#else /* CONFIG_SECURITY */
374struct security_mnt_opts {
375};
376
377static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
378{
379}
380
381static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
382{
383}
384
385/*
386 * This is the default capabilities functionality. Most of these functions
387 * are just stubbed out, but a few must call the proper capable code.
388 */
389
390static inline int security_init(void)
391{
392 return 0;
393}
394
395static inline int security_binder_set_context_mgr(struct task_struct *mgr)
396{
397 return 0;
398}
399
400static inline int security_binder_transaction(struct task_struct *from,
401 struct task_struct *to)
402{
403 return 0;
404}
405
406static inline int security_binder_transfer_binder(struct task_struct *from,
407 struct task_struct *to)
408{
409 return 0;
410}
411
412static inline int security_binder_transfer_file(struct task_struct *from,
413 struct task_struct *to,
414 struct file *file)
415{
416 return 0;
417}
418
419static inline int security_ptrace_access_check(struct task_struct *child,
420 unsigned int mode)
421{
422 return cap_ptrace_access_check(child, mode);
423}
424
425static inline int security_ptrace_traceme(struct task_struct *parent)
426{
427 return cap_ptrace_traceme(parent);
428}
429
430static inline int security_capget(struct task_struct *target,
431 kernel_cap_t *effective,
432 kernel_cap_t *inheritable,
433 kernel_cap_t *permitted)
434{
435 return cap_capget(target, effective, inheritable, permitted);
436}
437
438static inline int security_capset(struct cred *new,
439 const struct cred *old,
440 const kernel_cap_t *effective,
441 const kernel_cap_t *inheritable,
442 const kernel_cap_t *permitted)
443{
444 return cap_capset(new, old, effective, inheritable, permitted);
445}
446
447static inline int security_capable(const struct cred *cred,
448 struct user_namespace *ns, int cap)
449{
450 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
451}
452
453static inline int security_capable_noaudit(const struct cred *cred,
454 struct user_namespace *ns, int cap) {
455 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
456}
457
458static inline int security_quotactl(int cmds, int type, int id,
459 struct super_block *sb)
460{
461 return 0;
462}
463
464static inline int security_quota_on(struct dentry *dentry)
465{
466 return 0;
467}
468
469static inline int security_syslog(int type)
470{
471 return 0;
472}
473
474static inline int security_settime64(const struct timespec64 *ts,
475 const struct timezone *tz)
476{
477 return cap_settime(ts, tz);
478}
479
480static inline int security_settime(const struct timespec *ts,
481 const struct timezone *tz)
482{
483 struct timespec64 ts64 = timespec_to_timespec64(*ts);
484
485 return cap_settime(&ts64, tz);
486}
487
488static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
489{
490 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
491}
492
493static inline int security_bprm_set_creds(struct linux_binprm *bprm)
494{
495 return cap_bprm_set_creds(bprm);
496}
497
498static inline int security_bprm_check(struct linux_binprm *bprm)
499{
500 return 0;
501}
502
503static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
504{
505}
506
507static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
508{
509}
510
511static inline int security_bprm_secureexec(struct linux_binprm *bprm)
512{
513 return cap_bprm_secureexec(bprm);
514}
515
516static inline int security_sb_alloc(struct super_block *sb)
517{
518 return 0;
519}
520
521static inline void security_sb_free(struct super_block *sb)
522{ }
523
524static inline int security_sb_copy_data(char *orig, char *copy)
525{
526 return 0;
527}
528
529static inline int security_sb_remount(struct super_block *sb, void *data)
530{
531 return 0;
532}
533
534static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
535{
536 return 0;
537}
538
539static inline int security_sb_show_options(struct seq_file *m,
540 struct super_block *sb)
541{
542 return 0;
543}
544
545static inline int security_sb_statfs(struct dentry *dentry)
546{
547 return 0;
548}
549
550static inline int security_sb_mount(const char *dev_name, const struct path *path,
551 const char *type, unsigned long flags,
552 void *data)
553{
554 return 0;
555}
556
557static inline int security_sb_umount(struct vfsmount *mnt, int flags)
558{
559 return 0;
560}
561
562static inline int security_sb_pivotroot(const struct path *old_path,
563 const struct path *new_path)
564{
565 return 0;
566}
567
568static inline int security_sb_set_mnt_opts(struct super_block *sb,
569 struct security_mnt_opts *opts,
570 unsigned long kern_flags,
571 unsigned long *set_kern_flags)
572{
573 return 0;
574}
575
576static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
577 struct super_block *newsb)
578{
579 return 0;
580}
581
582static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
583{
584 return 0;
585}
586
587static inline int security_inode_alloc(struct inode *inode)
588{
589 return 0;
590}
591
592static inline void security_inode_free(struct inode *inode)
593{ }
594
595static inline int security_dentry_init_security(struct dentry *dentry,
596 int mode,
597 const struct qstr *name,
598 void **ctx,
599 u32 *ctxlen)
600{
601 return -EOPNOTSUPP;
602}
603
604static inline int security_dentry_create_files_as(struct dentry *dentry,
605 int mode, struct qstr *name,
606 const struct cred *old,
607 struct cred *new)
608{
609 return 0;
610}
611
612
613static inline int security_inode_init_security(struct inode *inode,
614 struct inode *dir,
615 const struct qstr *qstr,
616 const initxattrs xattrs,
617 void *fs_data)
618{
619 return 0;
620}
621
622static inline int security_old_inode_init_security(struct inode *inode,
623 struct inode *dir,
624 const struct qstr *qstr,
625 const char **name,
626 void **value, size_t *len)
627{
628 return -EOPNOTSUPP;
629}
630
631static inline int security_inode_create(struct inode *dir,
632 struct dentry *dentry,
633 umode_t mode)
634{
635 return 0;
636}
637
638static inline int security_inode_link(struct dentry *old_dentry,
639 struct inode *dir,
640 struct dentry *new_dentry)
641{
642 return 0;
643}
644
645static inline int security_inode_unlink(struct inode *dir,
646 struct dentry *dentry)
647{
648 return 0;
649}
650
651static inline int security_inode_symlink(struct inode *dir,
652 struct dentry *dentry,
653 const char *old_name)
654{
655 return 0;
656}
657
658static inline int security_inode_mkdir(struct inode *dir,
659 struct dentry *dentry,
660 int mode)
661{
662 return 0;
663}
664
665static inline int security_inode_rmdir(struct inode *dir,
666 struct dentry *dentry)
667{
668 return 0;
669}
670
671static inline int security_inode_mknod(struct inode *dir,
672 struct dentry *dentry,
673 int mode, dev_t dev)
674{
675 return 0;
676}
677
678static inline int security_inode_rename(struct inode *old_dir,
679 struct dentry *old_dentry,
680 struct inode *new_dir,
681 struct dentry *new_dentry,
682 unsigned int flags)
683{
684 return 0;
685}
686
687static inline int security_inode_readlink(struct dentry *dentry)
688{
689 return 0;
690}
691
692static inline int security_inode_follow_link(struct dentry *dentry,
693 struct inode *inode,
694 bool rcu)
695{
696 return 0;
697}
698
699static inline int security_inode_permission(struct inode *inode, int mask)
700{
701 return 0;
702}
703
704static inline int security_inode_setattr(struct dentry *dentry,
705 struct iattr *attr)
706{
707 return 0;
708}
709
710static inline int security_inode_getattr(const struct path *path)
711{
712 return 0;
713}
714
715static inline int security_inode_setxattr(struct dentry *dentry,
716 const char *name, const void *value, size_t size, int flags)
717{
718 return cap_inode_setxattr(dentry, name, value, size, flags);
719}
720
721static inline void security_inode_post_setxattr(struct dentry *dentry,
722 const char *name, const void *value, size_t size, int flags)
723{ }
724
725static inline int security_inode_getxattr(struct dentry *dentry,
726 const char *name)
727{
728 return 0;
729}
730
731static inline int security_inode_listxattr(struct dentry *dentry)
732{
733 return 0;
734}
735
736static inline int security_inode_removexattr(struct dentry *dentry,
737 const char *name)
738{
739 return cap_inode_removexattr(dentry, name);
740}
741
742static inline int security_inode_need_killpriv(struct dentry *dentry)
743{
744 return cap_inode_need_killpriv(dentry);
745}
746
747static inline int security_inode_killpriv(struct dentry *dentry)
748{
749 return cap_inode_killpriv(dentry);
750}
751
752static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
753{
754 return -EOPNOTSUPP;
755}
756
757static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
758{
759 return -EOPNOTSUPP;
760}
761
762static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
763{
764 return 0;
765}
766
767static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
768{
769 *secid = 0;
770}
771
772static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
773{
774 return 0;
775}
776
777static inline int security_inode_copy_up_xattr(const char *name)
778{
779 return -EOPNOTSUPP;
780}
781
782static inline int security_file_permission(struct file *file, int mask)
783{
784 return 0;
785}
786
787static inline int security_file_alloc(struct file *file)
788{
789 return 0;
790}
791
792static inline void security_file_free(struct file *file)
793{ }
794
795static inline int security_file_ioctl(struct file *file, unsigned int cmd,
796 unsigned long arg)
797{
798 return 0;
799}
800
801static inline int security_mmap_file(struct file *file, unsigned long prot,
802 unsigned long flags)
803{
804 return 0;
805}
806
807static inline int security_mmap_addr(unsigned long addr)
808{
809 return cap_mmap_addr(addr);
810}
811
812static inline int security_file_mprotect(struct vm_area_struct *vma,
813 unsigned long reqprot,
814 unsigned long prot)
815{
816 return 0;
817}
818
819static inline int security_file_lock(struct file *file, unsigned int cmd)
820{
821 return 0;
822}
823
824static inline int security_file_fcntl(struct file *file, unsigned int cmd,
825 unsigned long arg)
826{
827 return 0;
828}
829
830static inline void security_file_set_fowner(struct file *file)
831{
832 return;
833}
834
835static inline int security_file_send_sigiotask(struct task_struct *tsk,
836 struct fown_struct *fown,
837 int sig)
838{
839 return 0;
840}
841
842static inline int security_file_receive(struct file *file)
843{
844 return 0;
845}
846
847static inline int security_file_open(struct file *file,
848 const struct cred *cred)
849{
850 return 0;
851}
852
853static inline int security_task_create(unsigned long clone_flags)
854{
855 return 0;
856}
857
858static inline void security_task_free(struct task_struct *task)
859{ }
860
861static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
862{
863 return 0;
864}
865
866static inline void security_cred_free(struct cred *cred)
867{ }
868
869static inline int security_prepare_creds(struct cred *new,
870 const struct cred *old,
871 gfp_t gfp)
872{
873 return 0;
874}
875
876static inline void security_transfer_creds(struct cred *new,
877 const struct cred *old)
878{
879}
880
881static inline int security_kernel_act_as(struct cred *cred, u32 secid)
882{
883 return 0;
884}
885
886static inline int security_kernel_create_files_as(struct cred *cred,
887 struct inode *inode)
888{
889 return 0;
890}
891
892static inline int security_kernel_module_request(char *kmod_name)
893{
894 return 0;
895}
896
897static inline int security_kernel_read_file(struct file *file,
898 enum kernel_read_file_id id)
899{
900 return 0;
901}
902
903static inline int security_kernel_post_read_file(struct file *file,
904 char *buf, loff_t size,
905 enum kernel_read_file_id id)
906{
907 return 0;
908}
909
910static inline int security_task_fix_setuid(struct cred *new,
911 const struct cred *old,
912 int flags)
913{
914 return cap_task_fix_setuid(new, old, flags);
915}
916
917static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
918{
919 return 0;
920}
921
922static inline int security_task_getpgid(struct task_struct *p)
923{
924 return 0;
925}
926
927static inline int security_task_getsid(struct task_struct *p)
928{
929 return 0;
930}
931
932static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
933{
934 *secid = 0;
935}
936
937static inline int security_task_setnice(struct task_struct *p, int nice)
938{
939 return cap_task_setnice(p, nice);
940}
941
942static inline int security_task_setioprio(struct task_struct *p, int ioprio)
943{
944 return cap_task_setioprio(p, ioprio);
945}
946
947static inline int security_task_getioprio(struct task_struct *p)
948{
949 return 0;
950}
951
952static inline int security_task_setrlimit(struct task_struct *p,
953 unsigned int resource,
954 struct rlimit *new_rlim)
955{
956 return 0;
957}
958
959static inline int security_task_setscheduler(struct task_struct *p)
960{
961 return cap_task_setscheduler(p);
962}
963
964static inline int security_task_getscheduler(struct task_struct *p)
965{
966 return 0;
967}
968
969static inline int security_task_movememory(struct task_struct *p)
970{
971 return 0;
972}
973
974static inline int security_task_kill(struct task_struct *p,
975 struct siginfo *info, int sig,
976 u32 secid)
977{
978 return 0;
979}
980
981static inline int security_task_prctl(int option, unsigned long arg2,
982 unsigned long arg3,
983 unsigned long arg4,
984 unsigned long arg5)
985{
986 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
987}
988
989static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
990{ }
991
992static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
993 short flag)
994{
995 return 0;
996}
997
998static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
999{
1000 *secid = 0;
1001}
1002
1003static inline int security_msg_msg_alloc(struct msg_msg *msg)
1004{
1005 return 0;
1006}
1007
1008static inline void security_msg_msg_free(struct msg_msg *msg)
1009{ }
1010
1011static inline int security_msg_queue_alloc(struct msg_queue *msq)
1012{
1013 return 0;
1014}
1015
1016static inline void security_msg_queue_free(struct msg_queue *msq)
1017{ }
1018
1019static inline int security_msg_queue_associate(struct msg_queue *msq,
1020 int msqflg)
1021{
1022 return 0;
1023}
1024
1025static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1026{
1027 return 0;
1028}
1029
1030static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1031 struct msg_msg *msg, int msqflg)
1032{
1033 return 0;
1034}
1035
1036static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1037 struct msg_msg *msg,
1038 struct task_struct *target,
1039 long type, int mode)
1040{
1041 return 0;
1042}
1043
1044static inline int security_shm_alloc(struct shmid_kernel *shp)
1045{
1046 return 0;
1047}
1048
1049static inline void security_shm_free(struct shmid_kernel *shp)
1050{ }
1051
1052static inline int security_shm_associate(struct shmid_kernel *shp,
1053 int shmflg)
1054{
1055 return 0;
1056}
1057
1058static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1059{
1060 return 0;
1061}
1062
1063static inline int security_shm_shmat(struct shmid_kernel *shp,
1064 char __user *shmaddr, int shmflg)
1065{
1066 return 0;
1067}
1068
1069static inline int security_sem_alloc(struct sem_array *sma)
1070{
1071 return 0;
1072}
1073
1074static inline void security_sem_free(struct sem_array *sma)
1075{ }
1076
1077static inline int security_sem_associate(struct sem_array *sma, int semflg)
1078{
1079 return 0;
1080}
1081
1082static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1083{
1084 return 0;
1085}
1086
1087static inline int security_sem_semop(struct sem_array *sma,
1088 struct sembuf *sops, unsigned nsops,
1089 int alter)
1090{
1091 return 0;
1092}
1093
1094static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1095{ }
1096
1097static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1098{
1099 return -EINVAL;
1100}
1101
1102static inline int security_setprocattr(char *name, void *value, size_t size)
1103{
1104 return -EINVAL;
1105}
1106
1107static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1108{
1109 return 0;
1110}
1111
1112static inline int security_ismaclabel(const char *name)
1113{
1114 return 0;
1115}
1116
1117static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1118{
1119 return -EOPNOTSUPP;
1120}
1121
1122static inline int security_secctx_to_secid(const char *secdata,
1123 u32 seclen,
1124 u32 *secid)
1125{
1126 return -EOPNOTSUPP;
1127}
1128
1129static inline void security_release_secctx(char *secdata, u32 seclen)
1130{
1131}
1132
1133static inline void security_inode_invalidate_secctx(struct inode *inode)
1134{
1135}
1136
1137static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1138{
1139 return -EOPNOTSUPP;
1140}
1141static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1142{
1143 return -EOPNOTSUPP;
1144}
1145static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1146{
1147 return -EOPNOTSUPP;
1148}
1149#endif /* CONFIG_SECURITY */
1150
1151#ifdef CONFIG_SECURITY_NETWORK
1152
1153int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1154int security_unix_may_send(struct socket *sock, struct socket *other);
1155int security_socket_create(int family, int type, int protocol, int kern);
1156int security_socket_post_create(struct socket *sock, int family,
1157 int type, int protocol, int kern);
1158int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1159int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1160int security_socket_listen(struct socket *sock, int backlog);
1161int security_socket_accept(struct socket *sock, struct socket *newsock);
1162int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1163int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1164 int size, int flags);
1165int security_socket_getsockname(struct socket *sock);
1166int security_socket_getpeername(struct socket *sock);
1167int security_socket_getsockopt(struct socket *sock, int level, int optname);
1168int security_socket_setsockopt(struct socket *sock, int level, int optname);
1169int security_socket_shutdown(struct socket *sock, int how);
1170int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1171int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1172 int __user *optlen, unsigned len);
1173int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1174int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1175void security_sk_free(struct sock *sk);
1176void security_sk_clone(const struct sock *sk, struct sock *newsk);
1177void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1178void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1179void security_sock_graft(struct sock*sk, struct socket *parent);
1180int security_inet_conn_request(struct sock *sk,
1181 struct sk_buff *skb, struct request_sock *req);
1182void security_inet_csk_clone(struct sock *newsk,
1183 const struct request_sock *req);
1184void security_inet_conn_established(struct sock *sk,
1185 struct sk_buff *skb);
1186int security_secmark_relabel_packet(u32 secid);
1187void security_secmark_refcount_inc(void);
1188void security_secmark_refcount_dec(void);
1189int security_tun_dev_alloc_security(void **security);
1190void security_tun_dev_free_security(void *security);
1191int security_tun_dev_create(void);
1192int security_tun_dev_attach_queue(void *security);
1193int security_tun_dev_attach(struct sock *sk, void *security);
1194int security_tun_dev_open(void *security);
1195
1196#else /* CONFIG_SECURITY_NETWORK */
1197static inline int security_unix_stream_connect(struct sock *sock,
1198 struct sock *other,
1199 struct sock *newsk)
1200{
1201 return 0;
1202}
1203
1204static inline int security_unix_may_send(struct socket *sock,
1205 struct socket *other)
1206{
1207 return 0;
1208}
1209
1210static inline int security_socket_create(int family, int type,
1211 int protocol, int kern)
1212{
1213 return 0;
1214}
1215
1216static inline int security_socket_post_create(struct socket *sock,
1217 int family,
1218 int type,
1219 int protocol, int kern)
1220{
1221 return 0;
1222}
1223
1224static inline int security_socket_bind(struct socket *sock,
1225 struct sockaddr *address,
1226 int addrlen)
1227{
1228 return 0;
1229}
1230
1231static inline int security_socket_connect(struct socket *sock,
1232 struct sockaddr *address,
1233 int addrlen)
1234{
1235 return 0;
1236}
1237
1238static inline int security_socket_listen(struct socket *sock, int backlog)
1239{
1240 return 0;
1241}
1242
1243static inline int security_socket_accept(struct socket *sock,
1244 struct socket *newsock)
1245{
1246 return 0;
1247}
1248
1249static inline int security_socket_sendmsg(struct socket *sock,
1250 struct msghdr *msg, int size)
1251{
1252 return 0;
1253}
1254
1255static inline int security_socket_recvmsg(struct socket *sock,
1256 struct msghdr *msg, int size,
1257 int flags)
1258{
1259 return 0;
1260}
1261
1262static inline int security_socket_getsockname(struct socket *sock)
1263{
1264 return 0;
1265}
1266
1267static inline int security_socket_getpeername(struct socket *sock)
1268{
1269 return 0;
1270}
1271
1272static inline int security_socket_getsockopt(struct socket *sock,
1273 int level, int optname)
1274{
1275 return 0;
1276}
1277
1278static inline int security_socket_setsockopt(struct socket *sock,
1279 int level, int optname)
1280{
1281 return 0;
1282}
1283
1284static inline int security_socket_shutdown(struct socket *sock, int how)
1285{
1286 return 0;
1287}
1288static inline int security_sock_rcv_skb(struct sock *sk,
1289 struct sk_buff *skb)
1290{
1291 return 0;
1292}
1293
1294static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1295 int __user *optlen, unsigned len)
1296{
1297 return -ENOPROTOOPT;
1298}
1299
1300static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1301{
1302 return -ENOPROTOOPT;
1303}
1304
1305static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1306{
1307 return 0;
1308}
1309
1310static inline void security_sk_free(struct sock *sk)
1311{
1312}
1313
1314static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1315{
1316}
1317
1318static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1319{
1320}
1321
1322static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1323{
1324}
1325
1326static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1327{
1328}
1329
1330static inline int security_inet_conn_request(struct sock *sk,
1331 struct sk_buff *skb, struct request_sock *req)
1332{
1333 return 0;
1334}
1335
1336static inline void security_inet_csk_clone(struct sock *newsk,
1337 const struct request_sock *req)
1338{
1339}
1340
1341static inline void security_inet_conn_established(struct sock *sk,
1342 struct sk_buff *skb)
1343{
1344}
1345
1346static inline int security_secmark_relabel_packet(u32 secid)
1347{
1348 return 0;
1349}
1350
1351static inline void security_secmark_refcount_inc(void)
1352{
1353}
1354
1355static inline void security_secmark_refcount_dec(void)
1356{
1357}
1358
1359static inline int security_tun_dev_alloc_security(void **security)
1360{
1361 return 0;
1362}
1363
1364static inline void security_tun_dev_free_security(void *security)
1365{
1366}
1367
1368static inline int security_tun_dev_create(void)
1369{
1370 return 0;
1371}
1372
1373static inline int security_tun_dev_attach_queue(void *security)
1374{
1375 return 0;
1376}
1377
1378static inline int security_tun_dev_attach(struct sock *sk, void *security)
1379{
1380 return 0;
1381}
1382
1383static inline int security_tun_dev_open(void *security)
1384{
1385 return 0;
1386}
1387#endif /* CONFIG_SECURITY_NETWORK */
1388
1389#ifdef CONFIG_SECURITY_NETWORK_XFRM
1390
1391int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1392 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1393int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1394void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1395int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1396int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1397int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1398 struct xfrm_sec_ctx *polsec, u32 secid);
1399int security_xfrm_state_delete(struct xfrm_state *x);
1400void security_xfrm_state_free(struct xfrm_state *x);
1401int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1402int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1403 struct xfrm_policy *xp,
1404 const struct flowi *fl);
1405int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1406void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1407
1408#else /* CONFIG_SECURITY_NETWORK_XFRM */
1409
1410static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1411 struct xfrm_user_sec_ctx *sec_ctx,
1412 gfp_t gfp)
1413{
1414 return 0;
1415}
1416
1417static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1418{
1419 return 0;
1420}
1421
1422static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1423{
1424}
1425
1426static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1427{
1428 return 0;
1429}
1430
1431static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1432 struct xfrm_user_sec_ctx *sec_ctx)
1433{
1434 return 0;
1435}
1436
1437static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1438 struct xfrm_sec_ctx *polsec, u32 secid)
1439{
1440 return 0;
1441}
1442
1443static inline void security_xfrm_state_free(struct xfrm_state *x)
1444{
1445}
1446
1447static inline int security_xfrm_state_delete(struct xfrm_state *x)
1448{
1449 return 0;
1450}
1451
1452static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1453{
1454 return 0;
1455}
1456
1457static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1458 struct xfrm_policy *xp, const struct flowi *fl)
1459{
1460 return 1;
1461}
1462
1463static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1464{
1465 return 0;
1466}
1467
1468static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1469{
1470}
1471
1472#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1473
1474#ifdef CONFIG_SECURITY_PATH
1475int security_path_unlink(const struct path *dir, struct dentry *dentry);
1476int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1477int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1478int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1479 unsigned int dev);
1480int security_path_truncate(const struct path *path);
1481int security_path_symlink(const struct path *dir, struct dentry *dentry,
1482 const char *old_name);
1483int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1484 struct dentry *new_dentry);
1485int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1486 const struct path *new_dir, struct dentry *new_dentry,
1487 unsigned int flags);
1488int security_path_chmod(const struct path *path, umode_t mode);
1489int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1490int security_path_chroot(const struct path *path);
1491#else /* CONFIG_SECURITY_PATH */
1492static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1493{
1494 return 0;
1495}
1496
1497static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1498 umode_t mode)
1499{
1500 return 0;
1501}
1502
1503static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1504{
1505 return 0;
1506}
1507
1508static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1509 umode_t mode, unsigned int dev)
1510{
1511 return 0;
1512}
1513
1514static inline int security_path_truncate(const struct path *path)
1515{
1516 return 0;
1517}
1518
1519static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1520 const char *old_name)
1521{
1522 return 0;
1523}
1524
1525static inline int security_path_link(struct dentry *old_dentry,
1526 const struct path *new_dir,
1527 struct dentry *new_dentry)
1528{
1529 return 0;
1530}
1531
1532static inline int security_path_rename(const struct path *old_dir,
1533 struct dentry *old_dentry,
1534 const struct path *new_dir,
1535 struct dentry *new_dentry,
1536 unsigned int flags)
1537{
1538 return 0;
1539}
1540
1541static inline int security_path_chmod(const struct path *path, umode_t mode)
1542{
1543 return 0;
1544}
1545
1546static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1547{
1548 return 0;
1549}
1550
1551static inline int security_path_chroot(const struct path *path)
1552{
1553 return 0;
1554}
1555#endif /* CONFIG_SECURITY_PATH */
1556
1557#ifdef CONFIG_KEYS
1558#ifdef CONFIG_SECURITY
1559
1560int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1561void security_key_free(struct key *key);
1562int security_key_permission(key_ref_t key_ref,
1563 const struct cred *cred, unsigned perm);
1564int security_key_getsecurity(struct key *key, char **_buffer);
1565
1566#else
1567
1568static inline int security_key_alloc(struct key *key,
1569 const struct cred *cred,
1570 unsigned long flags)
1571{
1572 return 0;
1573}
1574
1575static inline void security_key_free(struct key *key)
1576{
1577}
1578
1579static inline int security_key_permission(key_ref_t key_ref,
1580 const struct cred *cred,
1581 unsigned perm)
1582{
1583 return 0;
1584}
1585
1586static inline int security_key_getsecurity(struct key *key, char **_buffer)
1587{
1588 *_buffer = NULL;
1589 return 0;
1590}
1591
1592#endif
1593#endif /* CONFIG_KEYS */
1594
1595#ifdef CONFIG_AUDIT
1596#ifdef CONFIG_SECURITY
1597int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1598int security_audit_rule_known(struct audit_krule *krule);
1599int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1600 struct audit_context *actx);
1601void security_audit_rule_free(void *lsmrule);
1602
1603#else
1604
1605static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1606 void **lsmrule)
1607{
1608 return 0;
1609}
1610
1611static inline int security_audit_rule_known(struct audit_krule *krule)
1612{
1613 return 0;
1614}
1615
1616static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1617 void *lsmrule, struct audit_context *actx)
1618{
1619 return 0;
1620}
1621
1622static inline void security_audit_rule_free(void *lsmrule)
1623{ }
1624
1625#endif /* CONFIG_SECURITY */
1626#endif /* CONFIG_AUDIT */
1627
1628#ifdef CONFIG_SECURITYFS
1629
1630extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1631 struct dentry *parent, void *data,
1632 const struct file_operations *fops);
1633extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1634extern void securityfs_remove(struct dentry *dentry);
1635
1636#else /* CONFIG_SECURITYFS */
1637
1638static inline struct dentry *securityfs_create_dir(const char *name,
1639 struct dentry *parent)
1640{
1641 return ERR_PTR(-ENODEV);
1642}
1643
1644static inline struct dentry *securityfs_create_file(const char *name,
1645 umode_t mode,
1646 struct dentry *parent,
1647 void *data,
1648 const struct file_operations *fops)
1649{
1650 return ERR_PTR(-ENODEV);
1651}
1652
1653static inline void securityfs_remove(struct dentry *dentry)
1654{}
1655
1656#endif
1657
1658#ifdef CONFIG_SECURITY
1659
1660static inline char *alloc_secdata(void)
1661{
1662 return (char *)get_zeroed_page(GFP_KERNEL);
1663}
1664
1665static inline void free_secdata(void *secdata)
1666{
1667 free_page((unsigned long)secdata);
1668}
1669
1670#else
1671
1672static inline char *alloc_secdata(void)
1673{
1674 return (char *)1;
1675}
1676
1677static inline void free_secdata(void *secdata)
1678{ }
1679#endif /* CONFIG_SECURITY */
1680
1681#endif /* ! __LINUX_SECURITY_H */
1682