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 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;
56
57/* If capable should audit the security request */
58#define SECURITY_CAP_NOAUDIT 0
59#define SECURITY_CAP_AUDIT 1
60
61/* LSM Agnostic defines for sb_set_mnt_opts */
62#define SECURITY_LSM_NATIVE_LABELS 1
63
64struct ctl_table;
65struct audit_krule;
66struct user_namespace;
67struct timezone;
68
69enum lsm_event {
70 LSM_POLICY_CHANGE,
71};
72
73/* These functions are in security/commoncap.c */
74extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
75 int cap, int audit);
76extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
77extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
78extern int cap_ptrace_traceme(struct task_struct *parent);
79extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
80extern int cap_capset(struct cred *new, const struct cred *old,
81 const kernel_cap_t *effective,
82 const kernel_cap_t *inheritable,
83 const kernel_cap_t *permitted);
84extern int cap_bprm_set_creds(struct linux_binprm *bprm);
85extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
86 const void *value, size_t size, int flags);
87extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
88extern int cap_inode_need_killpriv(struct dentry *dentry);
89extern int cap_inode_killpriv(struct dentry *dentry);
90extern int cap_inode_getsecurity(struct inode *inode, const char *name,
91 void **buffer, bool alloc);
92extern int cap_mmap_addr(unsigned long addr);
93extern int cap_mmap_file(struct file *file, unsigned long reqprot,
94 unsigned long prot, unsigned long flags);
95extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
96extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
97 unsigned long arg4, unsigned long arg5);
98extern int cap_task_setscheduler(struct task_struct *p);
99extern int cap_task_setioprio(struct task_struct *p, int ioprio);
100extern int cap_task_setnice(struct task_struct *p, int nice);
101extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
102
103struct msghdr;
104struct sk_buff;
105struct sock;
106struct sockaddr;
107struct socket;
108struct flowi;
109struct dst_entry;
110struct xfrm_selector;
111struct xfrm_policy;
112struct xfrm_state;
113struct xfrm_user_sec_ctx;
114struct seq_file;
115struct sctp_endpoint;
116
117#ifdef CONFIG_MMU
118extern unsigned long mmap_min_addr;
119extern unsigned long dac_mmap_min_addr;
120#else
121#define mmap_min_addr 0UL
122#define dac_mmap_min_addr 0UL
123#endif
124
125/*
126 * Values used in the task_security_ops calls
127 */
128/* setuid or setgid, id0 == uid or gid */
129#define LSM_SETID_ID 1
130
131/* setreuid or setregid, id0 == real, id1 == eff */
132#define LSM_SETID_RE 2
133
134/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
135#define LSM_SETID_RES 4
136
137/* setfsuid or setfsgid, id0 == fsuid or fsgid */
138#define LSM_SETID_FS 8
139
140/* Flags for security_task_prlimit(). */
141#define LSM_PRLIMIT_READ 1
142#define LSM_PRLIMIT_WRITE 2
143
144/* forward declares to avoid warnings */
145struct sched_param;
146struct request_sock;
147
148/* bprm->unsafe reasons */
149#define LSM_UNSAFE_SHARE 1
150#define LSM_UNSAFE_PTRACE 2
151#define LSM_UNSAFE_NO_NEW_PRIVS 4
152
153#ifdef CONFIG_MMU
154extern int mmap_min_addr_handler(struct ctl_table *table, int write,
155 void __user *buffer, size_t *lenp, loff_t *ppos);
156#endif
157
158/* security_inode_init_security callback function to write xattrs */
159typedef int (*initxattrs) (struct inode *inode,
160 const struct xattr *xattr_array, void *fs_data);
161
162
163/* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
164#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
165#define __data_id_stringify(dummy, str) #str,
166
167enum kernel_load_data_id {
168 __kernel_read_file_id(__data_id_enumify)
169};
170
171static const char * const kernel_load_data_str[] = {
172 __kernel_read_file_id(__data_id_stringify)
173};
174
175static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
176{
177 if ((unsigned)id >= LOADING_MAX_ID)
178 return kernel_load_data_str[LOADING_UNKNOWN];
179
180 return kernel_load_data_str[id];
181}
182
183#ifdef CONFIG_SECURITY
184
185struct security_mnt_opts {
186 char **mnt_opts;
187 int *mnt_opts_flags;
188 int num_mnt_opts;
189};
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
195static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
196{
197 opts->mnt_opts = NULL;
198 opts->mnt_opts_flags = NULL;
199 opts->num_mnt_opts = 0;
200}
201
202static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
203{
204 int i;
205 if (opts->mnt_opts)
206 for (i = 0; i < opts->num_mnt_opts; i++)
207 kfree(opts->mnt_opts[i]);
208 kfree(opts->mnt_opts);
209 opts->mnt_opts = NULL;
210 kfree(opts->mnt_opts_flags);
211 opts->mnt_opts_flags = NULL;
212 opts->num_mnt_opts = 0;
213}
214
215/* prototypes */
216extern int security_init(void);
217
218/* Security operations */
219int security_binder_set_context_mgr(struct task_struct *mgr);
220int security_binder_transaction(struct task_struct *from,
221 struct task_struct *to);
222int security_binder_transfer_binder(struct task_struct *from,
223 struct task_struct *to);
224int security_binder_transfer_file(struct task_struct *from,
225 struct task_struct *to, struct file *file);
226int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
227int security_ptrace_traceme(struct task_struct *parent);
228int security_capget(struct task_struct *target,
229 kernel_cap_t *effective,
230 kernel_cap_t *inheritable,
231 kernel_cap_t *permitted);
232int security_capset(struct cred *new, const struct cred *old,
233 const kernel_cap_t *effective,
234 const kernel_cap_t *inheritable,
235 const kernel_cap_t *permitted);
236int security_capable(const struct cred *cred, struct user_namespace *ns,
237 int cap);
238int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
239 int cap);
240int security_quotactl(int cmds, int type, int id, struct super_block *sb);
241int security_quota_on(struct dentry *dentry);
242int security_syslog(int type);
243int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
244int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
245int security_bprm_set_creds(struct linux_binprm *bprm);
246int security_bprm_check(struct linux_binprm *bprm);
247void security_bprm_committing_creds(struct linux_binprm *bprm);
248void security_bprm_committed_creds(struct linux_binprm *bprm);
249int security_sb_alloc(struct super_block *sb);
250void security_sb_free(struct super_block *sb);
251int security_sb_copy_data(char *orig, char *copy);
252int security_sb_remount(struct super_block *sb, void *data);
253int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
254int security_sb_show_options(struct seq_file *m, struct super_block *sb);
255int security_sb_statfs(struct dentry *dentry);
256int security_sb_mount(const char *dev_name, const struct path *path,
257 const char *type, unsigned long flags, void *data);
258int security_sb_umount(struct vfsmount *mnt, int flags);
259int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
260int security_sb_set_mnt_opts(struct super_block *sb,
261 struct security_mnt_opts *opts,
262 unsigned long kern_flags,
263 unsigned long *set_kern_flags);
264int security_sb_clone_mnt_opts(const struct super_block *oldsb,
265 struct super_block *newsb,
266 unsigned long kern_flags,
267 unsigned long *set_kern_flags);
268int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
269int security_dentry_init_security(struct dentry *dentry, int mode,
270 const struct qstr *name, void **ctx,
271 u32 *ctxlen);
272int security_dentry_create_files_as(struct dentry *dentry, int mode,
273 struct qstr *name,
274 const struct cred *old,
275 struct cred *new);
276
277int security_inode_alloc(struct inode *inode);
278void security_inode_free(struct inode *inode);
279int security_inode_init_security(struct inode *inode, struct inode *dir,
280 const struct qstr *qstr,
281 initxattrs initxattrs, void *fs_data);
282int security_old_inode_init_security(struct inode *inode, struct inode *dir,
283 const struct qstr *qstr, const char **name,
284 void **value, size_t *len);
285int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
286int security_inode_link(struct dentry *old_dentry, struct inode *dir,
287 struct dentry *new_dentry);
288int security_inode_unlink(struct inode *dir, struct dentry *dentry);
289int security_inode_symlink(struct inode *dir, struct dentry *dentry,
290 const char *old_name);
291int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
292int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
293int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
294int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
295 struct inode *new_dir, struct dentry *new_dentry,
296 unsigned int flags);
297int security_inode_readlink(struct dentry *dentry);
298int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
299 bool rcu);
300int security_inode_permission(struct inode *inode, int mask);
301int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
302int security_inode_getattr(const struct path *path);
303int security_inode_setxattr(struct dentry *dentry, const char *name,
304 const void *value, size_t size, int flags);
305void security_inode_post_setxattr(struct dentry *dentry, const char *name,
306 const void *value, size_t size, int flags);
307int security_inode_getxattr(struct dentry *dentry, const char *name);
308int security_inode_listxattr(struct dentry *dentry);
309int security_inode_removexattr(struct dentry *dentry, const char *name);
310int security_inode_need_killpriv(struct dentry *dentry);
311int security_inode_killpriv(struct dentry *dentry);
312int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
313int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
314int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
315void security_inode_getsecid(struct inode *inode, u32 *secid);
316int security_inode_copy_up(struct dentry *src, struct cred **new);
317int security_inode_copy_up_xattr(const char *name);
318int security_file_permission(struct file *file, int mask);
319int security_file_alloc(struct file *file);
320void security_file_free(struct file *file);
321int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
322int security_mmap_file(struct file *file, unsigned long prot,
323 unsigned long flags);
324int security_mmap_addr(unsigned long addr);
325int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
326 unsigned long prot);
327int security_file_lock(struct file *file, unsigned int cmd);
328int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
329void security_file_set_fowner(struct file *file);
330int security_file_send_sigiotask(struct task_struct *tsk,
331 struct fown_struct *fown, int sig);
332int security_file_receive(struct file *file);
333int security_file_open(struct file *file);
334int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
335void security_task_free(struct task_struct *task);
336int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
337void security_cred_free(struct cred *cred);
338int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
339void security_transfer_creds(struct cred *new, const struct cred *old);
340void security_cred_getsecid(const struct cred *c, u32 *secid);
341int security_kernel_act_as(struct cred *new, u32 secid);
342int security_kernel_create_files_as(struct cred *new, struct inode *inode);
343int security_kernel_module_request(char *kmod_name);
344int security_kernel_load_data(enum kernel_load_data_id id);
345int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
346int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
347 enum kernel_read_file_id id);
348int security_task_fix_setuid(struct cred *new, const struct cred *old,
349 int flags);
350int security_task_setpgid(struct task_struct *p, pid_t pgid);
351int security_task_getpgid(struct task_struct *p);
352int security_task_getsid(struct task_struct *p);
353void security_task_getsecid(struct task_struct *p, u32 *secid);
354int security_task_setnice(struct task_struct *p, int nice);
355int security_task_setioprio(struct task_struct *p, int ioprio);
356int security_task_getioprio(struct task_struct *p);
357int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
358 unsigned int flags);
359int security_task_setrlimit(struct task_struct *p, unsigned int resource,
360 struct rlimit *new_rlim);
361int security_task_setscheduler(struct task_struct *p);
362int security_task_getscheduler(struct task_struct *p);
363int security_task_movememory(struct task_struct *p);
364int security_task_kill(struct task_struct *p, struct siginfo *info,
365 int sig, const struct cred *cred);
366int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
367 unsigned long arg4, unsigned long arg5);
368void security_task_to_inode(struct task_struct *p, struct inode *inode);
369int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
370void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
371int security_msg_msg_alloc(struct msg_msg *msg);
372void security_msg_msg_free(struct msg_msg *msg);
373int security_msg_queue_alloc(struct kern_ipc_perm *msq);
374void security_msg_queue_free(struct kern_ipc_perm *msq);
375int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
376int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
377int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
378 struct msg_msg *msg, int msqflg);
379int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
380 struct task_struct *target, long type, int mode);
381int security_shm_alloc(struct kern_ipc_perm *shp);
382void security_shm_free(struct kern_ipc_perm *shp);
383int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
384int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
385int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
386int security_sem_alloc(struct kern_ipc_perm *sma);
387void security_sem_free(struct kern_ipc_perm *sma);
388int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
389int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
390int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
391 unsigned nsops, int alter);
392void security_d_instantiate(struct dentry *dentry, struct inode *inode);
393int security_getprocattr(struct task_struct *p, char *name, char **value);
394int security_setprocattr(const char *name, void *value, size_t size);
395int security_netlink_send(struct sock *sk, struct sk_buff *skb);
396int security_ismaclabel(const char *name);
397int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
398int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
399void security_release_secctx(char *secdata, u32 seclen);
400
401void security_inode_invalidate_secctx(struct inode *inode);
402int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
403int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
404int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
405#else /* CONFIG_SECURITY */
406struct security_mnt_opts {
407};
408
409static inline int call_lsm_notifier(enum lsm_event event, void *data)
410{
411 return 0;
412}
413
414static inline int register_lsm_notifier(struct notifier_block *nb)
415{
416 return 0;
417}
418
419static inline int unregister_lsm_notifier(struct notifier_block *nb)
420{
421 return 0;
422}
423
424static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
425{
426}
427
428static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
429{
430}
431
432/*
433 * This is the default capabilities functionality. Most of these functions
434 * are just stubbed out, but a few must call the proper capable code.
435 */
436
437static inline int security_init(void)
438{
439 return 0;
440}
441
442static inline int security_binder_set_context_mgr(struct task_struct *mgr)
443{
444 return 0;
445}
446
447static inline int security_binder_transaction(struct task_struct *from,
448 struct task_struct *to)
449{
450 return 0;
451}
452
453static inline int security_binder_transfer_binder(struct task_struct *from,
454 struct task_struct *to)
455{
456 return 0;
457}
458
459static inline int security_binder_transfer_file(struct task_struct *from,
460 struct task_struct *to,
461 struct file *file)
462{
463 return 0;
464}
465
466static inline int security_ptrace_access_check(struct task_struct *child,
467 unsigned int mode)
468{
469 return cap_ptrace_access_check(child, mode);
470}
471
472static inline int security_ptrace_traceme(struct task_struct *parent)
473{
474 return cap_ptrace_traceme(parent);
475}
476
477static inline int security_capget(struct task_struct *target,
478 kernel_cap_t *effective,
479 kernel_cap_t *inheritable,
480 kernel_cap_t *permitted)
481{
482 return cap_capget(target, effective, inheritable, permitted);
483}
484
485static inline int security_capset(struct cred *new,
486 const struct cred *old,
487 const kernel_cap_t *effective,
488 const kernel_cap_t *inheritable,
489 const kernel_cap_t *permitted)
490{
491 return cap_capset(new, old, effective, inheritable, permitted);
492}
493
494static inline int security_capable(const struct cred *cred,
495 struct user_namespace *ns, int cap)
496{
497 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
498}
499
500static inline int security_capable_noaudit(const struct cred *cred,
501 struct user_namespace *ns, int cap) {
502 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
503}
504
505static inline int security_quotactl(int cmds, int type, int id,
506 struct super_block *sb)
507{
508 return 0;
509}
510
511static inline int security_quota_on(struct dentry *dentry)
512{
513 return 0;
514}
515
516static inline int security_syslog(int type)
517{
518 return 0;
519}
520
521static inline int security_settime64(const struct timespec64 *ts,
522 const struct timezone *tz)
523{
524 return cap_settime(ts, tz);
525}
526
527static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
528{
529 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
530}
531
532static inline int security_bprm_set_creds(struct linux_binprm *bprm)
533{
534 return cap_bprm_set_creds(bprm);
535}
536
537static inline int security_bprm_check(struct linux_binprm *bprm)
538{
539 return 0;
540}
541
542static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
543{
544}
545
546static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
547{
548}
549
550static inline int security_sb_alloc(struct super_block *sb)
551{
552 return 0;
553}
554
555static inline void security_sb_free(struct super_block *sb)
556{ }
557
558static inline int security_sb_copy_data(char *orig, char *copy)
559{
560 return 0;
561}
562
563static inline int security_sb_remount(struct super_block *sb, void *data)
564{
565 return 0;
566}
567
568static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
569{
570 return 0;
571}
572
573static inline int security_sb_show_options(struct seq_file *m,
574 struct super_block *sb)
575{
576 return 0;
577}
578
579static inline int security_sb_statfs(struct dentry *dentry)
580{
581 return 0;
582}
583
584static inline int security_sb_mount(const char *dev_name, const struct path *path,
585 const char *type, unsigned long flags,
586 void *data)
587{
588 return 0;
589}
590
591static inline int security_sb_umount(struct vfsmount *mnt, int flags)
592{
593 return 0;
594}
595
596static inline int security_sb_pivotroot(const struct path *old_path,
597 const struct path *new_path)
598{
599 return 0;
600}
601
602static inline int security_sb_set_mnt_opts(struct super_block *sb,
603 struct security_mnt_opts *opts,
604 unsigned long kern_flags,
605 unsigned long *set_kern_flags)
606{
607 return 0;
608}
609
610static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
611 struct super_block *newsb,
612 unsigned long kern_flags,
613 unsigned long *set_kern_flags)
614{
615 return 0;
616}
617
618static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
619{
620 return 0;
621}
622
623static inline int security_inode_alloc(struct inode *inode)
624{
625 return 0;
626}
627
628static inline void security_inode_free(struct inode *inode)
629{ }
630
631static inline int security_dentry_init_security(struct dentry *dentry,
632 int mode,
633 const struct qstr *name,
634 void **ctx,
635 u32 *ctxlen)
636{
637 return -EOPNOTSUPP;
638}
639
640static inline int security_dentry_create_files_as(struct dentry *dentry,
641 int mode, struct qstr *name,
642 const struct cred *old,
643 struct cred *new)
644{
645 return 0;
646}
647
648
649static inline int security_inode_init_security(struct inode *inode,
650 struct inode *dir,
651 const struct qstr *qstr,
652 const initxattrs xattrs,
653 void *fs_data)
654{
655 return 0;
656}
657
658static inline int security_old_inode_init_security(struct inode *inode,
659 struct inode *dir,
660 const struct qstr *qstr,
661 const char **name,
662 void **value, size_t *len)
663{
664 return -EOPNOTSUPP;
665}
666
667static inline int security_inode_create(struct inode *dir,
668 struct dentry *dentry,
669 umode_t mode)
670{
671 return 0;
672}
673
674static inline int security_inode_link(struct dentry *old_dentry,
675 struct inode *dir,
676 struct dentry *new_dentry)
677{
678 return 0;
679}
680
681static inline int security_inode_unlink(struct inode *dir,
682 struct dentry *dentry)
683{
684 return 0;
685}
686
687static inline int security_inode_symlink(struct inode *dir,
688 struct dentry *dentry,
689 const char *old_name)
690{
691 return 0;
692}
693
694static inline int security_inode_mkdir(struct inode *dir,
695 struct dentry *dentry,
696 int mode)
697{
698 return 0;
699}
700
701static inline int security_inode_rmdir(struct inode *dir,
702 struct dentry *dentry)
703{
704 return 0;
705}
706
707static inline int security_inode_mknod(struct inode *dir,
708 struct dentry *dentry,
709 int mode, dev_t dev)
710{
711 return 0;
712}
713
714static inline int security_inode_rename(struct inode *old_dir,
715 struct dentry *old_dentry,
716 struct inode *new_dir,
717 struct dentry *new_dentry,
718 unsigned int flags)
719{
720 return 0;
721}
722
723static inline int security_inode_readlink(struct dentry *dentry)
724{
725 return 0;
726}
727
728static inline int security_inode_follow_link(struct dentry *dentry,
729 struct inode *inode,
730 bool rcu)
731{
732 return 0;
733}
734
735static inline int security_inode_permission(struct inode *inode, int mask)
736{
737 return 0;
738}
739
740static inline int security_inode_setattr(struct dentry *dentry,
741 struct iattr *attr)
742{
743 return 0;
744}
745
746static inline int security_inode_getattr(const struct path *path)
747{
748 return 0;
749}
750
751static inline int security_inode_setxattr(struct dentry *dentry,
752 const char *name, const void *value, size_t size, int flags)
753{
754 return cap_inode_setxattr(dentry, name, value, size, flags);
755}
756
757static inline void security_inode_post_setxattr(struct dentry *dentry,
758 const char *name, const void *value, size_t size, int flags)
759{ }
760
761static inline int security_inode_getxattr(struct dentry *dentry,
762 const char *name)
763{
764 return 0;
765}
766
767static inline int security_inode_listxattr(struct dentry *dentry)
768{
769 return 0;
770}
771
772static inline int security_inode_removexattr(struct dentry *dentry,
773 const char *name)
774{
775 return cap_inode_removexattr(dentry, name);
776}
777
778static inline int security_inode_need_killpriv(struct dentry *dentry)
779{
780 return cap_inode_need_killpriv(dentry);
781}
782
783static inline int security_inode_killpriv(struct dentry *dentry)
784{
785 return cap_inode_killpriv(dentry);
786}
787
788static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
789{
790 return -EOPNOTSUPP;
791}
792
793static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
794{
795 return -EOPNOTSUPP;
796}
797
798static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
799{
800 return 0;
801}
802
803static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
804{
805 *secid = 0;
806}
807
808static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
809{
810 return 0;
811}
812
813static inline int security_inode_copy_up_xattr(const char *name)
814{
815 return -EOPNOTSUPP;
816}
817
818static inline int security_file_permission(struct file *file, int mask)
819{
820 return 0;
821}
822
823static inline int security_file_alloc(struct file *file)
824{
825 return 0;
826}
827
828static inline void security_file_free(struct file *file)
829{ }
830
831static inline int security_file_ioctl(struct file *file, unsigned int cmd,
832 unsigned long arg)
833{
834 return 0;
835}
836
837static inline int security_mmap_file(struct file *file, unsigned long prot,
838 unsigned long flags)
839{
840 return 0;
841}
842
843static inline int security_mmap_addr(unsigned long addr)
844{
845 return cap_mmap_addr(addr);
846}
847
848static inline int security_file_mprotect(struct vm_area_struct *vma,
849 unsigned long reqprot,
850 unsigned long prot)
851{
852 return 0;
853}
854
855static inline int security_file_lock(struct file *file, unsigned int cmd)
856{
857 return 0;
858}
859
860static inline int security_file_fcntl(struct file *file, unsigned int cmd,
861 unsigned long arg)
862{
863 return 0;
864}
865
866static inline void security_file_set_fowner(struct file *file)
867{
868 return;
869}
870
871static inline int security_file_send_sigiotask(struct task_struct *tsk,
872 struct fown_struct *fown,
873 int sig)
874{
875 return 0;
876}
877
878static inline int security_file_receive(struct file *file)
879{
880 return 0;
881}
882
883static inline int security_file_open(struct file *file)
884{
885 return 0;
886}
887
888static inline int security_task_alloc(struct task_struct *task,
889 unsigned long clone_flags)
890{
891 return 0;
892}
893
894static inline void security_task_free(struct task_struct *task)
895{ }
896
897static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
898{
899 return 0;
900}
901
902static inline void security_cred_free(struct cred *cred)
903{ }
904
905static inline int security_prepare_creds(struct cred *new,
906 const struct cred *old,
907 gfp_t gfp)
908{
909 return 0;
910}
911
912static inline void security_transfer_creds(struct cred *new,
913 const struct cred *old)
914{
915}
916
917static inline int security_kernel_act_as(struct cred *cred, u32 secid)
918{
919 return 0;
920}
921
922static inline int security_kernel_create_files_as(struct cred *cred,
923 struct inode *inode)
924{
925 return 0;
926}
927
928static inline int security_kernel_module_request(char *kmod_name)
929{
930 return 0;
931}
932
933static inline int security_kernel_load_data(enum kernel_load_data_id id)
934{
935 return 0;
936}
937
938static inline int security_kernel_read_file(struct file *file,
939 enum kernel_read_file_id id)
940{
941 return 0;
942}
943
944static inline int security_kernel_post_read_file(struct file *file,
945 char *buf, loff_t size,
946 enum kernel_read_file_id id)
947{
948 return 0;
949}
950
951static inline int security_task_fix_setuid(struct cred *new,
952 const struct cred *old,
953 int flags)
954{
955 return cap_task_fix_setuid(new, old, flags);
956}
957
958static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
959{
960 return 0;
961}
962
963static inline int security_task_getpgid(struct task_struct *p)
964{
965 return 0;
966}
967
968static inline int security_task_getsid(struct task_struct *p)
969{
970 return 0;
971}
972
973static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
974{
975 *secid = 0;
976}
977
978static inline int security_task_setnice(struct task_struct *p, int nice)
979{
980 return cap_task_setnice(p, nice);
981}
982
983static inline int security_task_setioprio(struct task_struct *p, int ioprio)
984{
985 return cap_task_setioprio(p, ioprio);
986}
987
988static inline int security_task_getioprio(struct task_struct *p)
989{
990 return 0;
991}
992
993static inline int security_task_prlimit(const struct cred *cred,
994 const struct cred *tcred,
995 unsigned int flags)
996{
997 return 0;
998}
999
1000static inline int security_task_setrlimit(struct task_struct *p,
1001 unsigned int resource,
1002 struct rlimit *new_rlim)
1003{
1004 return 0;
1005}
1006
1007static inline int security_task_setscheduler(struct task_struct *p)
1008{
1009 return cap_task_setscheduler(p);
1010}
1011
1012static inline int security_task_getscheduler(struct task_struct *p)
1013{
1014 return 0;
1015}
1016
1017static inline int security_task_movememory(struct task_struct *p)
1018{
1019 return 0;
1020}
1021
1022static inline int security_task_kill(struct task_struct *p,
1023 struct siginfo *info, int sig,
1024 const struct cred *cred)
1025{
1026 return 0;
1027}
1028
1029static inline int security_task_prctl(int option, unsigned long arg2,
1030 unsigned long arg3,
1031 unsigned long arg4,
1032 unsigned long arg5)
1033{
1034 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1035}
1036
1037static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1038{ }
1039
1040static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1041 short flag)
1042{
1043 return 0;
1044}
1045
1046static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1047{
1048 *secid = 0;
1049}
1050
1051static inline int security_msg_msg_alloc(struct msg_msg *msg)
1052{
1053 return 0;
1054}
1055
1056static inline void security_msg_msg_free(struct msg_msg *msg)
1057{ }
1058
1059static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1060{
1061 return 0;
1062}
1063
1064static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1065{ }
1066
1067static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1068 int msqflg)
1069{
1070 return 0;
1071}
1072
1073static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1074{
1075 return 0;
1076}
1077
1078static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1079 struct msg_msg *msg, int msqflg)
1080{
1081 return 0;
1082}
1083
1084static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1085 struct msg_msg *msg,
1086 struct task_struct *target,
1087 long type, int mode)
1088{
1089 return 0;
1090}
1091
1092static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1093{
1094 return 0;
1095}
1096
1097static inline void security_shm_free(struct kern_ipc_perm *shp)
1098{ }
1099
1100static inline int security_shm_associate(struct kern_ipc_perm *shp,
1101 int shmflg)
1102{
1103 return 0;
1104}
1105
1106static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1107{
1108 return 0;
1109}
1110
1111static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1112 char __user *shmaddr, int shmflg)
1113{
1114 return 0;
1115}
1116
1117static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1118{
1119 return 0;
1120}
1121
1122static inline void security_sem_free(struct kern_ipc_perm *sma)
1123{ }
1124
1125static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1126{
1127 return 0;
1128}
1129
1130static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1131{
1132 return 0;
1133}
1134
1135static inline int security_sem_semop(struct kern_ipc_perm *sma,
1136 struct sembuf *sops, unsigned nsops,
1137 int alter)
1138{
1139 return 0;
1140}
1141
1142static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1143{ }
1144
1145static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1146{
1147 return -EINVAL;
1148}
1149
1150static inline int security_setprocattr(char *name, void *value, size_t size)
1151{
1152 return -EINVAL;
1153}
1154
1155static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1156{
1157 return 0;
1158}
1159
1160static inline int security_ismaclabel(const char *name)
1161{
1162 return 0;
1163}
1164
1165static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1166{
1167 return -EOPNOTSUPP;
1168}
1169
1170static inline int security_secctx_to_secid(const char *secdata,
1171 u32 seclen,
1172 u32 *secid)
1173{
1174 return -EOPNOTSUPP;
1175}
1176
1177static inline void security_release_secctx(char *secdata, u32 seclen)
1178{
1179}
1180
1181static inline void security_inode_invalidate_secctx(struct inode *inode)
1182{
1183}
1184
1185static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1186{
1187 return -EOPNOTSUPP;
1188}
1189static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1190{
1191 return -EOPNOTSUPP;
1192}
1193static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1194{
1195 return -EOPNOTSUPP;
1196}
1197#endif /* CONFIG_SECURITY */
1198
1199#ifdef CONFIG_SECURITY_NETWORK
1200
1201int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1202int security_unix_may_send(struct socket *sock, struct socket *other);
1203int security_socket_create(int family, int type, int protocol, int kern);
1204int security_socket_post_create(struct socket *sock, int family,
1205 int type, int protocol, int kern);
1206int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1207int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1208int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1209int security_socket_listen(struct socket *sock, int backlog);
1210int security_socket_accept(struct socket *sock, struct socket *newsock);
1211int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1212int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1213 int size, int flags);
1214int security_socket_getsockname(struct socket *sock);
1215int security_socket_getpeername(struct socket *sock);
1216int security_socket_getsockopt(struct socket *sock, int level, int optname);
1217int security_socket_setsockopt(struct socket *sock, int level, int optname);
1218int security_socket_shutdown(struct socket *sock, int how);
1219int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1220int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1221 int __user *optlen, unsigned len);
1222int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1223int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1224void security_sk_free(struct sock *sk);
1225void security_sk_clone(const struct sock *sk, struct sock *newsk);
1226void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1227void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1228void security_sock_graft(struct sock*sk, struct socket *parent);
1229int security_inet_conn_request(struct sock *sk,
1230 struct sk_buff *skb, struct request_sock *req);
1231void security_inet_csk_clone(struct sock *newsk,
1232 const struct request_sock *req);
1233void security_inet_conn_established(struct sock *sk,
1234 struct sk_buff *skb);
1235int security_secmark_relabel_packet(u32 secid);
1236void security_secmark_refcount_inc(void);
1237void security_secmark_refcount_dec(void);
1238int security_tun_dev_alloc_security(void **security);
1239void security_tun_dev_free_security(void *security);
1240int security_tun_dev_create(void);
1241int security_tun_dev_attach_queue(void *security);
1242int security_tun_dev_attach(struct sock *sk, void *security);
1243int security_tun_dev_open(void *security);
1244int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1245int security_sctp_bind_connect(struct sock *sk, int optname,
1246 struct sockaddr *address, int addrlen);
1247void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1248 struct sock *newsk);
1249
1250#else /* CONFIG_SECURITY_NETWORK */
1251static inline int security_unix_stream_connect(struct sock *sock,
1252 struct sock *other,
1253 struct sock *newsk)
1254{
1255 return 0;
1256}
1257
1258static inline int security_unix_may_send(struct socket *sock,
1259 struct socket *other)
1260{
1261 return 0;
1262}
1263
1264static inline int security_socket_create(int family, int type,
1265 int protocol, int kern)
1266{
1267 return 0;
1268}
1269
1270static inline int security_socket_post_create(struct socket *sock,
1271 int family,
1272 int type,
1273 int protocol, int kern)
1274{
1275 return 0;
1276}
1277
1278static inline int security_socket_socketpair(struct socket *socka,
1279 struct socket *sockb)
1280{
1281 return 0;
1282}
1283
1284static inline int security_socket_bind(struct socket *sock,
1285 struct sockaddr *address,
1286 int addrlen)
1287{
1288 return 0;
1289}
1290
1291static inline int security_socket_connect(struct socket *sock,
1292 struct sockaddr *address,
1293 int addrlen)
1294{
1295 return 0;
1296}
1297
1298static inline int security_socket_listen(struct socket *sock, int backlog)
1299{
1300 return 0;
1301}
1302
1303static inline int security_socket_accept(struct socket *sock,
1304 struct socket *newsock)
1305{
1306 return 0;
1307}
1308
1309static inline int security_socket_sendmsg(struct socket *sock,
1310 struct msghdr *msg, int size)
1311{
1312 return 0;
1313}
1314
1315static inline int security_socket_recvmsg(struct socket *sock,
1316 struct msghdr *msg, int size,
1317 int flags)
1318{
1319 return 0;
1320}
1321
1322static inline int security_socket_getsockname(struct socket *sock)
1323{
1324 return 0;
1325}
1326
1327static inline int security_socket_getpeername(struct socket *sock)
1328{
1329 return 0;
1330}
1331
1332static inline int security_socket_getsockopt(struct socket *sock,
1333 int level, int optname)
1334{
1335 return 0;
1336}
1337
1338static inline int security_socket_setsockopt(struct socket *sock,
1339 int level, int optname)
1340{
1341 return 0;
1342}
1343
1344static inline int security_socket_shutdown(struct socket *sock, int how)
1345{
1346 return 0;
1347}
1348static inline int security_sock_rcv_skb(struct sock *sk,
1349 struct sk_buff *skb)
1350{
1351 return 0;
1352}
1353
1354static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1355 int __user *optlen, unsigned len)
1356{
1357 return -ENOPROTOOPT;
1358}
1359
1360static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1361{
1362 return -ENOPROTOOPT;
1363}
1364
1365static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1366{
1367 return 0;
1368}
1369
1370static inline void security_sk_free(struct sock *sk)
1371{
1372}
1373
1374static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1375{
1376}
1377
1378static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1379{
1380}
1381
1382static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1383{
1384}
1385
1386static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1387{
1388}
1389
1390static inline int security_inet_conn_request(struct sock *sk,
1391 struct sk_buff *skb, struct request_sock *req)
1392{
1393 return 0;
1394}
1395
1396static inline void security_inet_csk_clone(struct sock *newsk,
1397 const struct request_sock *req)
1398{
1399}
1400
1401static inline void security_inet_conn_established(struct sock *sk,
1402 struct sk_buff *skb)
1403{
1404}
1405
1406static inline int security_secmark_relabel_packet(u32 secid)
1407{
1408 return 0;
1409}
1410
1411static inline void security_secmark_refcount_inc(void)
1412{
1413}
1414
1415static inline void security_secmark_refcount_dec(void)
1416{
1417}
1418
1419static inline int security_tun_dev_alloc_security(void **security)
1420{
1421 return 0;
1422}
1423
1424static inline void security_tun_dev_free_security(void *security)
1425{
1426}
1427
1428static inline int security_tun_dev_create(void)
1429{
1430 return 0;
1431}
1432
1433static inline int security_tun_dev_attach_queue(void *security)
1434{
1435 return 0;
1436}
1437
1438static inline int security_tun_dev_attach(struct sock *sk, void *security)
1439{
1440 return 0;
1441}
1442
1443static inline int security_tun_dev_open(void *security)
1444{
1445 return 0;
1446}
1447
1448static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1449 struct sk_buff *skb)
1450{
1451 return 0;
1452}
1453
1454static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1455 struct sockaddr *address,
1456 int addrlen)
1457{
1458 return 0;
1459}
1460
1461static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1462 struct sock *sk,
1463 struct sock *newsk)
1464{
1465}
1466#endif /* CONFIG_SECURITY_NETWORK */
1467
1468#ifdef CONFIG_SECURITY_INFINIBAND
1469int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1470int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1471int security_ib_alloc_security(void **sec);
1472void security_ib_free_security(void *sec);
1473#else /* CONFIG_SECURITY_INFINIBAND */
1474static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1475{
1476 return 0;
1477}
1478
1479static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1480{
1481 return 0;
1482}
1483
1484static inline int security_ib_alloc_security(void **sec)
1485{
1486 return 0;
1487}
1488
1489static inline void security_ib_free_security(void *sec)
1490{
1491}
1492#endif /* CONFIG_SECURITY_INFINIBAND */
1493
1494#ifdef CONFIG_SECURITY_NETWORK_XFRM
1495
1496int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1497 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1498int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1499void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1500int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1501int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1502int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1503 struct xfrm_sec_ctx *polsec, u32 secid);
1504int security_xfrm_state_delete(struct xfrm_state *x);
1505void security_xfrm_state_free(struct xfrm_state *x);
1506int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1507int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1508 struct xfrm_policy *xp,
1509 const struct flowi *fl);
1510int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1511void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1512
1513#else /* CONFIG_SECURITY_NETWORK_XFRM */
1514
1515static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1516 struct xfrm_user_sec_ctx *sec_ctx,
1517 gfp_t gfp)
1518{
1519 return 0;
1520}
1521
1522static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1523{
1524 return 0;
1525}
1526
1527static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1528{
1529}
1530
1531static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1532{
1533 return 0;
1534}
1535
1536static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1537 struct xfrm_user_sec_ctx *sec_ctx)
1538{
1539 return 0;
1540}
1541
1542static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1543 struct xfrm_sec_ctx *polsec, u32 secid)
1544{
1545 return 0;
1546}
1547
1548static inline void security_xfrm_state_free(struct xfrm_state *x)
1549{
1550}
1551
1552static inline int security_xfrm_state_delete(struct xfrm_state *x)
1553{
1554 return 0;
1555}
1556
1557static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1558{
1559 return 0;
1560}
1561
1562static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1563 struct xfrm_policy *xp, const struct flowi *fl)
1564{
1565 return 1;
1566}
1567
1568static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1569{
1570 return 0;
1571}
1572
1573static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1574{
1575}
1576
1577#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1578
1579#ifdef CONFIG_SECURITY_PATH
1580int security_path_unlink(const struct path *dir, struct dentry *dentry);
1581int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1582int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1583int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1584 unsigned int dev);
1585int security_path_truncate(const struct path *path);
1586int security_path_symlink(const struct path *dir, struct dentry *dentry,
1587 const char *old_name);
1588int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1589 struct dentry *new_dentry);
1590int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1591 const struct path *new_dir, struct dentry *new_dentry,
1592 unsigned int flags);
1593int security_path_chmod(const struct path *path, umode_t mode);
1594int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1595int security_path_chroot(const struct path *path);
1596#else /* CONFIG_SECURITY_PATH */
1597static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1598{
1599 return 0;
1600}
1601
1602static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1603 umode_t mode)
1604{
1605 return 0;
1606}
1607
1608static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1609{
1610 return 0;
1611}
1612
1613static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1614 umode_t mode, unsigned int dev)
1615{
1616 return 0;
1617}
1618
1619static inline int security_path_truncate(const struct path *path)
1620{
1621 return 0;
1622}
1623
1624static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1625 const char *old_name)
1626{
1627 return 0;
1628}
1629
1630static inline int security_path_link(struct dentry *old_dentry,
1631 const struct path *new_dir,
1632 struct dentry *new_dentry)
1633{
1634 return 0;
1635}
1636
1637static inline int security_path_rename(const struct path *old_dir,
1638 struct dentry *old_dentry,
1639 const struct path *new_dir,
1640 struct dentry *new_dentry,
1641 unsigned int flags)
1642{
1643 return 0;
1644}
1645
1646static inline int security_path_chmod(const struct path *path, umode_t mode)
1647{
1648 return 0;
1649}
1650
1651static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1652{
1653 return 0;
1654}
1655
1656static inline int security_path_chroot(const struct path *path)
1657{
1658 return 0;
1659}
1660#endif /* CONFIG_SECURITY_PATH */
1661
1662#ifdef CONFIG_KEYS
1663#ifdef CONFIG_SECURITY
1664
1665int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1666void security_key_free(struct key *key);
1667int security_key_permission(key_ref_t key_ref,
1668 const struct cred *cred, unsigned perm);
1669int security_key_getsecurity(struct key *key, char **_buffer);
1670
1671#else
1672
1673static inline int security_key_alloc(struct key *key,
1674 const struct cred *cred,
1675 unsigned long flags)
1676{
1677 return 0;
1678}
1679
1680static inline void security_key_free(struct key *key)
1681{
1682}
1683
1684static inline int security_key_permission(key_ref_t key_ref,
1685 const struct cred *cred,
1686 unsigned perm)
1687{
1688 return 0;
1689}
1690
1691static inline int security_key_getsecurity(struct key *key, char **_buffer)
1692{
1693 *_buffer = NULL;
1694 return 0;
1695}
1696
1697#endif
1698#endif /* CONFIG_KEYS */
1699
1700#ifdef CONFIG_AUDIT
1701#ifdef CONFIG_SECURITY
1702int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1703int security_audit_rule_known(struct audit_krule *krule);
1704int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1705 struct audit_context *actx);
1706void security_audit_rule_free(void *lsmrule);
1707
1708#else
1709
1710static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1711 void **lsmrule)
1712{
1713 return 0;
1714}
1715
1716static inline int security_audit_rule_known(struct audit_krule *krule)
1717{
1718 return 0;
1719}
1720
1721static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1722 void *lsmrule, struct audit_context *actx)
1723{
1724 return 0;
1725}
1726
1727static inline void security_audit_rule_free(void *lsmrule)
1728{ }
1729
1730#endif /* CONFIG_SECURITY */
1731#endif /* CONFIG_AUDIT */
1732
1733#ifdef CONFIG_SECURITYFS
1734
1735extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1736 struct dentry *parent, void *data,
1737 const struct file_operations *fops);
1738extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1739struct dentry *securityfs_create_symlink(const char *name,
1740 struct dentry *parent,
1741 const char *target,
1742 const struct inode_operations *iops);
1743extern void securityfs_remove(struct dentry *dentry);
1744
1745#else /* CONFIG_SECURITYFS */
1746
1747static inline struct dentry *securityfs_create_dir(const char *name,
1748 struct dentry *parent)
1749{
1750 return ERR_PTR(-ENODEV);
1751}
1752
1753static inline struct dentry *securityfs_create_file(const char *name,
1754 umode_t mode,
1755 struct dentry *parent,
1756 void *data,
1757 const struct file_operations *fops)
1758{
1759 return ERR_PTR(-ENODEV);
1760}
1761
1762static inline struct dentry *securityfs_create_symlink(const char *name,
1763 struct dentry *parent,
1764 const char *target,
1765 const struct inode_operations *iops)
1766{
1767 return ERR_PTR(-ENODEV);
1768}
1769
1770static inline void securityfs_remove(struct dentry *dentry)
1771{}
1772
1773#endif
1774
1775#ifdef CONFIG_BPF_SYSCALL
1776union bpf_attr;
1777struct bpf_map;
1778struct bpf_prog;
1779struct bpf_prog_aux;
1780#ifdef CONFIG_SECURITY
1781extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1782extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1783extern int security_bpf_prog(struct bpf_prog *prog);
1784extern int security_bpf_map_alloc(struct bpf_map *map);
1785extern void security_bpf_map_free(struct bpf_map *map);
1786extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1787extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1788#else
1789static inline int security_bpf(int cmd, union bpf_attr *attr,
1790 unsigned int size)
1791{
1792 return 0;
1793}
1794
1795static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1796{
1797 return 0;
1798}
1799
1800static inline int security_bpf_prog(struct bpf_prog *prog)
1801{
1802 return 0;
1803}
1804
1805static inline int security_bpf_map_alloc(struct bpf_map *map)
1806{
1807 return 0;
1808}
1809
1810static inline void security_bpf_map_free(struct bpf_map *map)
1811{ }
1812
1813static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1814{
1815 return 0;
1816}
1817
1818static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1819{ }
1820#endif /* CONFIG_SECURITY */
1821#endif /* CONFIG_BPF_SYSCALL */
1822
1823#ifdef CONFIG_SECURITY
1824
1825static inline char *alloc_secdata(void)
1826{
1827 return (char *)get_zeroed_page(GFP_KERNEL);
1828}
1829
1830static inline void free_secdata(void *secdata)
1831{
1832 free_page((unsigned long)secdata);
1833}
1834
1835#else
1836
1837static inline char *alloc_secdata(void)
1838{
1839 return (char *)1;
1840}
1841
1842static inline void free_secdata(void *secdata)
1843{ }
1844#endif /* CONFIG_SECURITY */
1845
1846#endif /* ! __LINUX_SECURITY_H */
1847
1848