security.h 43.2 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/*
 * Linux Security plug
 *
 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	Due to this file being licensed under the GPL there is controversy over
 *	whether this permits you to write a module that #includes this file
 *	without placing your module under the GPL.  Please consult a lawyer for
 *	advice before doing this.
 *
 */

#ifndef __LINUX_SECURITY_H
#define __LINUX_SECURITY_H

25
#include <linux/key.h>
Al Viro's avatar
Al Viro committed
26
#include <linux/capability.h>
27
#include <linux/slab.h>
Al Viro's avatar
Al Viro committed
28
#include <linux/err.h>
29
#include <linux/string.h>
30
#include <linux/mm.h>
Al Viro's avatar
Al Viro committed
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

struct linux_binprm;
struct cred;
struct rlimit;
struct siginfo;
struct sem_array;
struct sembuf;
struct kern_ipc_perm;
struct audit_context;
struct super_block;
struct inode;
struct dentry;
struct file;
struct vfsmount;
struct path;
struct qstr;
struct iattr;
struct fown_struct;
struct file_operations;
struct shmid_kernel;
struct msg_msg;
struct msg_queue;
struct xattr;
struct xfrm_sec_ctx;
struct mm_struct;
Linus Torvalds's avatar
Linus Torvalds committed
56

57 58 59 60
/* If capable should audit the security request */
#define SECURITY_CAP_NOAUDIT 0
#define SECURITY_CAP_AUDIT 1

61 62 63
/* LSM Agnostic defines for sb_set_mnt_opts */
#define SECURITY_LSM_NATIVE_LABELS	1

Linus Torvalds's avatar
Linus Torvalds committed
64
struct ctl_table;
65
struct audit_krule;
66
struct user_namespace;
Al Viro's avatar
Al Viro committed
67
struct timezone;
Linus Torvalds's avatar
Linus Torvalds committed
68

69
/* These functions are in security/commoncap.c */
70 71
extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
		       int cap, int audit);
72
extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
73
extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
74
extern int cap_ptrace_traceme(struct task_struct *parent);
75
extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
76 77 78 79
extern int cap_capset(struct cred *new, const struct cred *old,
		      const kernel_cap_t *effective,
		      const kernel_cap_t *inheritable,
		      const kernel_cap_t *permitted);
80
extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds's avatar
Linus Torvalds committed
81
extern int cap_bprm_secureexec(struct linux_binprm *bprm);
82 83 84
extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
			      const void *value, size_t size, int flags);
extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
85 86
extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
87
extern int cap_mmap_addr(unsigned long addr);
88 89
extern int cap_mmap_file(struct file *file, unsigned long reqprot,
			 unsigned long prot, unsigned long flags);
90
extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
91
extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
92
			  unsigned long arg4, unsigned long arg5);
93
extern int cap_task_setscheduler(struct task_struct *p);
94 95
extern int cap_task_setioprio(struct task_struct *p, int ioprio);
extern int cap_task_setnice(struct task_struct *p, int nice);
96
extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds's avatar
Linus Torvalds committed
97 98 99 100 101 102

struct msghdr;
struct sk_buff;
struct sock;
struct sockaddr;
struct socket;
103 104 105 106 107 108
struct flowi;
struct dst_entry;
struct xfrm_selector;
struct xfrm_policy;
struct xfrm_state;
struct xfrm_user_sec_ctx;
109
struct seq_file;
Linus Torvalds's avatar
Linus Torvalds committed
110

111
#ifdef CONFIG_MMU
112
extern unsigned long mmap_min_addr;
113
extern unsigned long dac_mmap_min_addr;
114
#else
115
#define mmap_min_addr		0UL
116 117 118
#define dac_mmap_min_addr	0UL
#endif

Linus Torvalds's avatar
Linus Torvalds committed
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135
/*
 * Values used in the task_security_ops calls
 */
/* setuid or setgid, id0 == uid or gid */
#define LSM_SETID_ID	1

/* setreuid or setregid, id0 == real, id1 == eff */
#define LSM_SETID_RE	2

/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
#define LSM_SETID_RES	4

/* setfsuid or setfsgid, id0 == fsuid or fsgid */
#define LSM_SETID_FS	8

/* forward declares to avoid warnings */
struct sched_param;
136
struct request_sock;
Linus Torvalds's avatar
Linus Torvalds committed
137

138
/* bprm->unsafe reasons */
Linus Torvalds's avatar
Linus Torvalds committed
139 140 141
#define LSM_UNSAFE_SHARE	1
#define LSM_UNSAFE_PTRACE	2
#define LSM_UNSAFE_PTRACE_CAP	4
142
#define LSM_UNSAFE_NO_NEW_PRIVS	8
Linus Torvalds's avatar
Linus Torvalds committed
143

144
#ifdef CONFIG_MMU
145
extern int mmap_min_addr_handler(struct ctl_table *table, int write,
146
				 void __user *buffer, size_t *lenp, loff_t *ppos);
147
#endif
148

149 150 151 152
/* security_inode_init_security callback function to write xattrs */
typedef int (*initxattrs) (struct inode *inode,
			   const struct xattr *xattr_array, void *fs_data);

Linus Torvalds's avatar
Linus Torvalds committed
153 154
#ifdef CONFIG_SECURITY

155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
struct security_mnt_opts {
	char **mnt_opts;
	int *mnt_opts_flags;
	int num_mnt_opts;
};

static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
	opts->mnt_opts = NULL;
	opts->mnt_opts_flags = NULL;
	opts->num_mnt_opts = 0;
}

static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
{
	int i;
	if (opts->mnt_opts)
172
		for (i = 0; i < opts->num_mnt_opts; i++)
173 174 175 176 177 178 179 180
			kfree(opts->mnt_opts[i]);
	kfree(opts->mnt_opts);
	opts->mnt_opts = NULL;
	kfree(opts->mnt_opts_flags);
	opts->mnt_opts_flags = NULL;
	opts->num_mnt_opts = 0;
}

Linus Torvalds's avatar
Linus Torvalds committed
181
/* prototypes */
182
extern int security_init(void);
Linus Torvalds's avatar
Linus Torvalds committed
183

184
/* Security operations */
185 186 187 188 189 190 191
int security_binder_set_context_mgr(struct task_struct *mgr);
int security_binder_transaction(struct task_struct *from,
				struct task_struct *to);
int security_binder_transfer_binder(struct task_struct *from,
				    struct task_struct *to);
int security_binder_transfer_file(struct task_struct *from,
				  struct task_struct *to, struct file *file);
192
int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
193
int security_ptrace_traceme(struct task_struct *parent);
194
int security_capget(struct task_struct *target,
195 196 197
		    kernel_cap_t *effective,
		    kernel_cap_t *inheritable,
		    kernel_cap_t *permitted);
198 199 200 201
int security_capset(struct cred *new, const struct cred *old,
		    const kernel_cap_t *effective,
		    const kernel_cap_t *inheritable,
		    const kernel_cap_t *permitted);
202
int security_capable(const struct cred *cred, struct user_namespace *ns,
203
			int cap);
204 205
int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
			     int cap);
206 207
int security_quotactl(int cmds, int type, int id, struct super_block *sb);
int security_quota_on(struct dentry *dentry);
208
int security_syslog(int type);
209
int security_settime(const struct timespec *ts, const struct timezone *tz);
210
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
211
int security_bprm_set_creds(struct linux_binprm *bprm);
212
int security_bprm_check(struct linux_binprm *bprm);
213 214
void security_bprm_committing_creds(struct linux_binprm *bprm);
void security_bprm_committed_creds(struct linux_binprm *bprm);
215 216 217
int security_bprm_secureexec(struct linux_binprm *bprm);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
218
int security_sb_copy_data(char *orig, char *copy);
219
int security_sb_remount(struct super_block *sb, void *data);
220
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
221
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
222
int security_sb_statfs(struct dentry *dentry);
Al Viro's avatar
Al Viro committed
223 224
int security_sb_mount(const char *dev_name, struct path *path,
		      const char *type, unsigned long flags, void *data);
225
int security_sb_umount(struct vfsmount *mnt, int flags);
226
int security_sb_pivotroot(struct path *old_path, struct path *new_path);
227 228 229 230
int security_sb_set_mnt_opts(struct super_block *sb,
				struct security_mnt_opts *opts,
				unsigned long kern_flags,
				unsigned long *set_kern_flags);
231
int security_sb_clone_mnt_opts(const struct super_block *oldsb,
232
				struct super_block *newsb);
233
int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
234 235 236
int security_dentry_init_security(struct dentry *dentry, int mode,
					struct qstr *name, void **ctx,
					u32 *ctxlen);
237

238 239 240
int security_inode_alloc(struct inode *inode);
void security_inode_free(struct inode *inode);
int security_inode_init_security(struct inode *inode, struct inode *dir,
241 242 243
				 const struct qstr *qstr,
				 initxattrs initxattrs, void *fs_data);
int security_old_inode_init_security(struct inode *inode, struct inode *dir,
244
				     const struct qstr *qstr, const char **name,
245
				     void **value, size_t *len);
Al Viro's avatar
Al Viro committed
246
int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
247 248 249 250
int security_inode_link(struct dentry *old_dentry, struct inode *dir,
			 struct dentry *new_dentry);
int security_inode_unlink(struct inode *dir, struct dentry *dentry);
int security_inode_symlink(struct inode *dir, struct dentry *dentry,
251
			   const char *old_name);
252
int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
253
int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
Al Viro's avatar
Al Viro committed
254
int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
255
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
256 257
			  struct inode *new_dir, struct dentry *new_dentry,
			  unsigned int flags);
258
int security_inode_readlink(struct dentry *dentry);
259 260
int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
			       bool rcu);
261
int security_inode_permission(struct inode *inode, int mask);
262
int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
263
int security_inode_getattr(const struct path *path);
264 265 266 267 268
int security_inode_setxattr(struct dentry *dentry, const char *name,
			    const void *value, size_t size, int flags);
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
				  const void *value, size_t size, int flags);
int security_inode_getxattr(struct dentry *dentry, const char *name);
269
int security_inode_listxattr(struct dentry *dentry);
270
int security_inode_removexattr(struct dentry *dentry, const char *name);
271 272
int security_inode_need_killpriv(struct dentry *dentry);
int security_inode_killpriv(struct dentry *dentry);
273
int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
274 275
int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
276
void security_inode_getsecid(struct inode *inode, u32 *secid);
277 278 279 280
int security_file_permission(struct file *file, int mask);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
281 282
int security_mmap_file(struct file *file, unsigned long prot,
			unsigned long flags);
283
int security_mmap_addr(unsigned long addr);
284
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
285
			   unsigned long prot);
286 287
int security_file_lock(struct file *file, unsigned int cmd);
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
288
void security_file_set_fowner(struct file *file);
289
int security_file_send_sigiotask(struct task_struct *tsk,
290
				 struct fown_struct *fown, int sig);
291
int security_file_receive(struct file *file);
292
int security_file_open(struct file *file, const struct cred *cred);
293
int security_task_create(unsigned long clone_flags);
294
void security_task_free(struct task_struct *task);
295
int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
296
void security_cred_free(struct cred *cred);
297
int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
298
void security_transfer_creds(struct cred *new, const struct cred *old);
299 300
int security_kernel_act_as(struct cred *new, u32 secid);
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
301
int security_kernel_fw_from_file(struct file *file, char *buf, size_t size);
302
int security_kernel_module_request(char *kmod_name);
303
int security_kernel_module_from_file(struct file *file);
304 305
int security_task_fix_setuid(struct cred *new, const struct cred *old,
			     int flags);
306 307 308 309 310 311 312
int security_task_setpgid(struct task_struct *p, pid_t pgid);
int security_task_getpgid(struct task_struct *p);
int security_task_getsid(struct task_struct *p);
void security_task_getsecid(struct task_struct *p, u32 *secid);
int security_task_setnice(struct task_struct *p, int nice);
int security_task_setioprio(struct task_struct *p, int ioprio);
int security_task_getioprio(struct task_struct *p);
313 314
int security_task_setrlimit(struct task_struct *p, unsigned int resource,
		struct rlimit *new_rlim);
315
int security_task_setscheduler(struct task_struct *p);
316 317 318 319 320 321
int security_task_getscheduler(struct task_struct *p);
int security_task_movememory(struct task_struct *p);
int security_task_kill(struct task_struct *p, struct siginfo *info,
			int sig, u32 secid);
int security_task_wait(struct task_struct *p);
int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
322
			unsigned long arg4, unsigned long arg5);
323 324
void security_task_to_inode(struct task_struct *p, struct inode *inode);
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
325
void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
326 327 328 329 330 331 332
int security_msg_msg_alloc(struct msg_msg *msg);
void security_msg_msg_free(struct msg_msg *msg);
int security_msg_queue_alloc(struct msg_queue *msq);
void security_msg_queue_free(struct msg_queue *msq);
int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
int security_msg_queue_msgsnd(struct msg_queue *msq,
333
			      struct msg_msg *msg, int msqflg);
334
int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
335
			      struct task_struct *target, long type, int mode);
336 337 338 339 340 341 342 343 344 345 346
int security_shm_alloc(struct shmid_kernel *shp);
void security_shm_free(struct shmid_kernel *shp);
int security_shm_associate(struct shmid_kernel *shp, int shmflg);
int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
int security_sem_alloc(struct sem_array *sma);
void security_sem_free(struct sem_array *sma);
int security_sem_associate(struct sem_array *sma, int semflg);
int security_sem_semctl(struct sem_array *sma, int cmd);
int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
			unsigned nsops, int alter);
347
void security_d_instantiate(struct dentry *dentry, struct inode *inode);
348 349 350
int security_getprocattr(struct task_struct *p, char *name, char **value);
int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
351
int security_ismaclabel(const char *name);
352
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
353
int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
354 355
void security_release_secctx(char *secdata, u32 seclen);

356 357 358
int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
Linus Torvalds's avatar
Linus Torvalds committed
359
#else /* CONFIG_SECURITY */
360 361 362 363 364 365 366 367 368 369
struct security_mnt_opts {
};

static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
}

static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
{
}
Linus Torvalds's avatar
Linus Torvalds committed
370 371 372 373 374 375 376 377 378 379 380

/*
 * This is the default capabilities functionality.  Most of these functions
 * are just stubbed out, but a few must call the proper capable code.
 */

static inline int security_init(void)
{
	return 0;
}

381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
static inline int security_binder_set_context_mgr(struct task_struct *mgr)
{
	return 0;
}

static inline int security_binder_transaction(struct task_struct *from,
					      struct task_struct *to)
{
	return 0;
}

static inline int security_binder_transfer_binder(struct task_struct *from,
						  struct task_struct *to)
{
	return 0;
}

static inline int security_binder_transfer_file(struct task_struct *from,
						struct task_struct *to,
						struct file *file)
{
	return 0;
}

405
static inline int security_ptrace_access_check(struct task_struct *child,
406 407
					     unsigned int mode)
{
408
	return cap_ptrace_access_check(child, mode);
409 410
}

411
static inline int security_ptrace_traceme(struct task_struct *parent)
Linus Torvalds's avatar
Linus Torvalds committed
412
{
413
	return cap_ptrace_traceme(parent);
Linus Torvalds's avatar
Linus Torvalds committed
414 415
}

416
static inline int security_capget(struct task_struct *target,
Linus Torvalds's avatar
Linus Torvalds committed
417 418 419 420
				   kernel_cap_t *effective,
				   kernel_cap_t *inheritable,
				   kernel_cap_t *permitted)
{
421
	return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds's avatar
Linus Torvalds committed
422 423
}

424 425 426 427 428
static inline int security_capset(struct cred *new,
				   const struct cred *old,
				   const kernel_cap_t *effective,
				   const kernel_cap_t *inheritable,
				   const kernel_cap_t *permitted)
Linus Torvalds's avatar
Linus Torvalds committed
429
{
430
	return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds's avatar
Linus Torvalds committed
431 432
}

433 434
static inline int security_capable(const struct cred *cred,
				   struct user_namespace *ns, int cap)
435
{
436
	return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
437 438
}

439 440 441
static inline int security_capable_noaudit(const struct cred *cred,
					   struct user_namespace *ns, int cap) {
	return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
442 443
}

444 445
static inline int security_quotactl(int cmds, int type, int id,
				     struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
446 447 448 449
{
	return 0;
}

450
static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
451 452 453 454
{
	return 0;
}

455
static inline int security_syslog(int type)
Linus Torvalds's avatar
Linus Torvalds committed
456
{
457
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
458 459
}

460 461
static inline int security_settime(const struct timespec *ts,
				   const struct timezone *tz)
Linus Torvalds's avatar
Linus Torvalds committed
462 463 464 465
{
	return cap_settime(ts, tz);
}

466
static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
Alan Cox's avatar
Alan Cox committed
467
{
468
	return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
Alan Cox's avatar
Alan Cox committed
469 470
}

471
static inline int security_bprm_set_creds(struct linux_binprm *bprm)
472
{
473
	return cap_bprm_set_creds(bprm);
Linus Torvalds's avatar
Linus Torvalds committed
474 475
}

476
static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
477
{
478
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
479 480
}

481
static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
482 483 484
{
}

485
static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
486 487 488
{
}

489
static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
490 491 492 493
{
	return cap_bprm_secureexec(bprm);
}

494
static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
495 496 497 498
{
	return 0;
}

499
static inline void security_sb_free(struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
500 501
{ }

502
static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds's avatar
Linus Torvalds committed
503 504 505 506
{
	return 0;
}

507 508 509 510 511
static inline int security_sb_remount(struct super_block *sb, void *data)
{
	return 0;
}

512
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds's avatar
Linus Torvalds committed
513 514 515 516
{
	return 0;
}

517 518 519 520 521 522
static inline int security_sb_show_options(struct seq_file *m,
					   struct super_block *sb)
{
	return 0;
}

523
static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
524 525 526 527
{
	return 0;
}

Al Viro's avatar
Al Viro committed
528 529
static inline int security_sb_mount(const char *dev_name, struct path *path,
				    const char *type, unsigned long flags,
Linus Torvalds's avatar
Linus Torvalds committed
530 531 532 533 534
				    void *data)
{
	return 0;
}

535
static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds's avatar
Linus Torvalds committed
536 537 538 539
{
	return 0;
}

540 541
static inline int security_sb_pivotroot(struct path *old_path,
					struct path *new_path)
Linus Torvalds's avatar
Linus Torvalds committed
542 543 544 545
{
	return 0;
}

546
static inline int security_sb_set_mnt_opts(struct super_block *sb,
547 548 549
					   struct security_mnt_opts *opts,
					   unsigned long kern_flags,
					   unsigned long *set_kern_flags)
550 551 552 553
{
	return 0;
}

554
static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
555
					      struct super_block *newsb)
556 557 558
{
	return 0;
}
559 560 561 562 563

static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
{
	return 0;
}
Linus Torvalds's avatar
Linus Torvalds committed
564

565
static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds's avatar
Linus Torvalds committed
566 567 568 569
{
	return 0;
}

570
static inline void security_inode_free(struct inode *inode)
Linus Torvalds's avatar
Linus Torvalds committed
571
{ }
572

573 574 575 576 577 578 579 580 581 582
static inline int security_dentry_init_security(struct dentry *dentry,
						 int mode,
						 struct qstr *name,
						 void **ctx,
						 u32 *ctxlen)
{
	return -EOPNOTSUPP;
}


583
static inline int security_inode_init_security(struct inode *inode,
584
						struct inode *dir,
585
						const struct qstr *qstr,
Mark Rustad's avatar
Mark Rustad committed
586
						const initxattrs xattrs,
587
						void *fs_data)
588
{
Mimi Zohar's avatar
Mimi Zohar committed
589
	return 0;
590
}
591

Mimi Zohar's avatar
Mimi Zohar committed
592 593 594
static inline int security_old_inode_init_security(struct inode *inode,
						   struct inode *dir,
						   const struct qstr *qstr,
595 596
						   const char **name,
						   void **value, size_t *len)
597
{
598
	return -EOPNOTSUPP;
599 600
}

601
static inline int security_inode_create(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
602
					 struct dentry *dentry,
Al Viro's avatar
Al Viro committed
603
					 umode_t mode)
Linus Torvalds's avatar
Linus Torvalds committed
604 605 606 607
{
	return 0;
}

608
static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds's avatar
Linus Torvalds committed
609 610 611 612 613 614
				       struct inode *dir,
				       struct dentry *new_dentry)
{
	return 0;
}

615
static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
616 617 618 619 620
					 struct dentry *dentry)
{
	return 0;
}

621
static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
622 623 624 625 626 627
					  struct dentry *dentry,
					  const char *old_name)
{
	return 0;
}

628
static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
629 630 631 632 633 634
					struct dentry *dentry,
					int mode)
{
	return 0;
}

635
static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
636 637 638 639 640
					struct dentry *dentry)
{
	return 0;
}

641
static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
642 643 644 645 646 647
					struct dentry *dentry,
					int mode, dev_t dev)
{
	return 0;
}

648
static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds's avatar
Linus Torvalds committed
649 650
					 struct dentry *old_dentry,
					 struct inode *new_dir,
651 652
					 struct dentry *new_dentry,
					 unsigned int flags)
Linus Torvalds's avatar
Linus Torvalds committed
653 654 655 656
{
	return 0;
}

657
static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
658 659 660 661
{
	return 0;
}

662 663 664
static inline int security_inode_follow_link(struct dentry *dentry,
					     struct inode *inode,
					     bool rcu)
Linus Torvalds's avatar
Linus Torvalds committed
665 666 667 668
{
	return 0;
}

669
static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds's avatar
Linus Torvalds committed
670 671 672 673
{
	return 0;
}

674
static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds's avatar
Linus Torvalds committed
675 676 677 678 679
					  struct iattr *attr)
{
	return 0;
}

680
static inline int security_inode_getattr(const struct path *path)
Linus Torvalds's avatar
Linus Torvalds committed
681 682 683 684
{
	return 0;
}

685 686
static inline int security_inode_setxattr(struct dentry *dentry,
		const char *name, const void *value, size_t size, int flags)
Linus Torvalds's avatar
Linus Torvalds committed
687 688 689 690
{
	return cap_inode_setxattr(dentry, name, value, size, flags);
}

691 692
static inline void security_inode_post_setxattr(struct dentry *dentry,
		const char *name, const void *value, size_t size, int flags)
Linus Torvalds's avatar
Linus Torvalds committed
693 694
{ }

695 696
static inline int security_inode_getxattr(struct dentry *dentry,
			const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
697 698 699 700
{
	return 0;
}

701
static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
702 703 704 705
{
	return 0;
}

706 707
static inline int security_inode_removexattr(struct dentry *dentry,
			const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
708 709 710 711
{
	return cap_inode_removexattr(dentry, name);
}

712 713 714 715 716 717 718 719 720 721
static inline int security_inode_need_killpriv(struct dentry *dentry)
{
	return cap_inode_need_killpriv(dentry);
}

static inline int security_inode_killpriv(struct dentry *dentry)
{
	return cap_inode_killpriv(dentry);
}

722
static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds's avatar
Linus Torvalds committed
723 724 725 726 727 728 729 730 731 732 733 734 735 736
{
	return -EOPNOTSUPP;
}

static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
{
	return -EOPNOTSUPP;
}

static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
{
	return 0;
}

737
static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
738 739 740 741
{
	*secid = 0;
}

742
static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds's avatar
Linus Torvalds committed
743 744 745 746
{
	return 0;
}

747
static inline int security_file_alloc(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
748 749 750 751
{
	return 0;
}

752
static inline void security_file_free(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
753 754
{ }

755 756
static inline int security_file_ioctl(struct file *file, unsigned int cmd,
				      unsigned long arg)
Linus Torvalds's avatar
Linus Torvalds committed
757 758 759 760
{
	return 0;
}

761
static inline int security_mmap_file(struct file *file, unsigned long prot,
762 763 764 765 766 767
				     unsigned long flags)
{
	return 0;
}

static inline int security_mmap_addr(unsigned long addr)
Linus Torvalds's avatar
Linus Torvalds committed
768
{
769
	return cap_mmap_addr(addr);
Linus Torvalds's avatar
Linus Torvalds committed
770 771
}

772 773 774
static inline int security_file_mprotect(struct vm_area_struct *vma,
					 unsigned long reqprot,
					 unsigned long prot)
Linus Torvalds's avatar
Linus Torvalds committed
775 776 777 778
{
	return 0;
}

779
static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds's avatar
Linus Torvalds committed
780 781 782 783
{
	return 0;
}

784 785
static inline int security_file_fcntl(struct file *file, unsigned int cmd,
				      unsigned long arg)
Linus Torvalds's avatar
Linus Torvalds committed
786 787 788 789
{
	return 0;
}

790
static inline void security_file_set_fowner(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
791
{
792
	return;
Linus Torvalds's avatar
Linus Torvalds committed
793 794
}

795 796 797
static inline int security_file_send_sigiotask(struct task_struct *tsk,
					       struct fown_struct *fown,
					       int sig)
Linus Torvalds's avatar
Linus Torvalds committed
798 799 800 801
{
	return 0;
}

802
static inline int security_file_receive(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
803 804 805 806
{
	return 0;
}

807 808
static inline int security_file_open(struct file *file,
				     const struct cred *cred)
809 810 811 812
{
	return 0;
}

813
static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds's avatar
Linus Torvalds committed
814 815 816 817
{
	return 0;
}

818 819 820
static inline void security_task_free(struct task_struct *task)
{ }

821 822 823 824
static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
{
	return 0;
}
825

826 827 828 829 830 831
static inline void security_cred_free(struct cred *cred)
{ }

static inline int security_prepare_creds(struct cred *new,
					 const struct cred *old,
					 gfp_t gfp)
Linus Torvalds's avatar
Linus Torvalds committed
832 833 834 835
{
	return 0;
}

836 837 838 839 840
static inline void security_transfer_creds(struct cred *new,
					   const struct cred *old)
{
}

841 842 843 844 845 846 847 848 849 850 851
static inline int security_kernel_act_as(struct cred *cred, u32 secid)
{
	return 0;
}

static inline int security_kernel_create_files_as(struct cred *cred,
						  struct inode *inode)
{
	return 0;
}

852 853 854 855 856 857
static inline int security_kernel_fw_from_file(struct file *file,
					       char *buf, size_t size)
{
	return 0;
}

858
static inline int security_kernel_module_request(char *kmod_name)
859 860
{
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
861 862
}

863 864 865 866 867
static inline int security_kernel_module_from_file(struct file *file)
{
	return 0;
}

868 869 870
static inline int security_task_fix_setuid(struct cred *new,
					   const struct cred *old,
					   int flags)
Linus Torvalds's avatar
Linus Torvalds committed
871
{
872
	return cap_task_fix_setuid(new, old, flags);
Linus Torvalds's avatar
Linus Torvalds committed
873 874
}

875
static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds's avatar
Linus Torvalds committed
876 877 878 879
{
	return 0;
}

880
static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
881 882 883 884
{
	return 0;
}

885
static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
886 887 888 889
{
	return 0;
}

890
static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
891 892 893
{
	*secid = 0;
}
894

895
static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds's avatar
Linus Torvalds committed
896
{
897
	return cap_task_setnice(p, nice);
Linus Torvalds's avatar
Linus Torvalds committed
898 899
}

900
static inline int security_task_setioprio(struct task_struct *p, int ioprio)
901
{
902
	return cap_task_setioprio(p, ioprio);
903 904
}

905
static inline int security_task_getioprio(struct task_struct *p)
906 907 908 909
{
	return 0;
}

910 911
static inline int security_task_setrlimit(struct task_struct *p,
					  unsigned int resource,
912
					  struct rlimit *new_rlim)
Linus Torvalds's avatar
Linus Torvalds committed
913 914 915 916
{
	return 0;
}

917
static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
918
{
919
	return cap_task_setscheduler(p);
Linus Torvalds's avatar
Linus Torvalds committed
920 921
}

922
static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
923 924 925 926
{
	return 0;
}

927
static inline int security_task_movememory(struct task_struct *p)
928 929 930 931
{
	return 0;
}

932 933 934
static inline int security_task_kill(struct task_struct *p,
				     struct siginfo *info, int sig,
				     u32 secid)
Linus Torvalds's avatar
Linus Torvalds committed
935
{
936
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
937 938
}

939
static inline int security_task_wait(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
940 941 942 943
{
	return 0;
}

944 945 946
static inline int security_task_prctl(int option, unsigned long arg2,
				      unsigned long arg3,
				      unsigned long arg4,
947
				      unsigned long arg5)
Linus Torvalds's avatar
Linus Torvalds committed
948
{
949
	return cap_task_prctl(option, arg2, arg3, arg4, arg5);
Linus Torvalds's avatar
Linus Torvalds committed
950 951 952 953 954
}

static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
{ }

955 956
static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
					  short flag)
Linus Torvalds's avatar
Linus Torvalds committed
957 958 959 960
{
	return 0;
}

961 962 963 964 965
static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
{
	*secid = 0;
}

966
static inline int security_msg_msg_alloc(struct msg_msg *msg)
Linus Torvalds's avatar
Linus Torvalds committed
967 968 969 970
{
	return 0;
}

971
static inline void security_msg_msg_free(struct msg_msg *msg)
Linus Torvalds's avatar
Linus Torvalds committed
972 973
{ }

974
static inline int security_msg_queue_alloc(struct msg_queue *msq)
Linus Torvalds's avatar
Linus Torvalds committed
975 976 977 978
{
	return 0;
}

979
static inline void security_msg_queue_free(struct msg_queue *msq)
Linus Torvalds's avatar
Linus Torvalds committed
980 981
{ }

982 983
static inline int security_msg_queue_associate(struct msg_queue *msq,
					       int msqflg)
Linus Torvalds's avatar
Linus Torvalds committed
984 985 986 987
{
	return 0;
}

988
static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
Linus Torvalds's avatar
Linus Torvalds committed
989 990 991 992
{
	return 0;
}

993 994
static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
					    struct msg_msg *msg, int msqflg)
Linus Torvalds's avatar
Linus Torvalds committed
995 996 997 998
{
	return 0;
}

999 1000 1001 1002
static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
					    struct msg_msg *msg,
					    struct task_struct *target,
					    long type, int mode)
Linus Torvalds's avatar
Linus Torvalds committed
1003 1004 1005 1006
{
	return 0;
}

1007
static inline int security_shm_alloc(struct shmid_kernel *shp)
Linus Torvalds's avatar
Linus Torvalds committed
1008 1009 1010 1011
{
	return 0;
}

1012
static inline void security_shm_free(struct shmid_kernel *shp)
Linus Torvalds's avatar
Linus Torvalds committed
1013 1014
{ }

1015 1016
static inline int security_shm_associate(struct shmid_kernel *shp,
					 int shmflg)
Linus Torvalds's avatar
Linus Torvalds committed
1017 1018 1019 1020
{
	return 0;
}

1021
static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
Linus Torvalds's avatar
Linus Torvalds committed
1022 1023 1024 1025
{
	return 0;
}

1026 1027
static inline int security_shm_shmat(struct shmid_kernel *shp,
				     char __user *shmaddr, int shmflg)