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