security.h 46.2 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2 3 4 5 6 7 8
/*
 * 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)
9
 * Copyright (C) 2016 Mellanox Techonologies
Linus Torvalds's avatar
Linus Torvalds committed
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
 *
 *	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

26
#include <linux/key.h>
Al Viro's avatar
Al Viro committed
27
#include <linux/capability.h>
28
#include <linux/fs.h>
29
#include <linux/slab.h>
Al Viro's avatar
Al Viro committed
30
#include <linux/err.h>
31
#include <linux/string.h>
32
#include <linux/mm.h>
33
#include <linux/fs.h>
Al Viro's avatar
Al Viro committed
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58

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
59

60 61 62 63
/* If capable should audit the security request */
#define SECURITY_CAP_NOAUDIT 0
#define SECURITY_CAP_AUDIT 1

64 65 66
/* LSM Agnostic defines for sb_set_mnt_opts */
#define SECURITY_LSM_NATIVE_LABELS	1

Linus Torvalds's avatar
Linus Torvalds committed
67
struct ctl_table;
68
struct audit_krule;
69
struct user_namespace;
Al Viro's avatar
Al Viro committed
70
struct timezone;
Linus Torvalds's avatar
Linus Torvalds committed
71

72 73 74 75
enum lsm_event {
	LSM_POLICY_CHANGE,
};

76
/* These functions are in security/commoncap.c */
77 78
extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
		       int cap, int audit);
79
extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
80
extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
81
extern int cap_ptrace_traceme(struct task_struct *parent);
82
extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
83 84 85 86
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);
87
extern int cap_bprm_set_creds(struct linux_binprm *bprm);
Linus Torvalds's avatar
Linus Torvalds committed
88
extern int cap_bprm_secureexec(struct linux_binprm *bprm);
89 90 91
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);
92 93
extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
94
extern int cap_mmap_addr(unsigned long addr);
95 96
extern int cap_mmap_file(struct file *file, unsigned long reqprot,
			 unsigned long prot, unsigned long flags);
97
extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
98
extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
99
			  unsigned long arg4, unsigned long arg5);
100
extern int cap_task_setscheduler(struct task_struct *p);
101 102
extern int cap_task_setioprio(struct task_struct *p, int ioprio);
extern int cap_task_setnice(struct task_struct *p, int nice);
103
extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
Linus Torvalds's avatar
Linus Torvalds committed
104 105 106 107 108 109

struct msghdr;
struct sk_buff;
struct sock;
struct sockaddr;
struct socket;
110 111 112 113 114 115
struct flowi;
struct dst_entry;
struct xfrm_selector;
struct xfrm_policy;
struct xfrm_state;
struct xfrm_user_sec_ctx;
116
struct seq_file;
Linus Torvalds's avatar
Linus Torvalds committed
117

118
#ifdef CONFIG_MMU
119
extern unsigned long mmap_min_addr;
120
extern unsigned long dac_mmap_min_addr;
121
#else
122
#define mmap_min_addr		0UL
123 124 125
#define dac_mmap_min_addr	0UL
#endif

Linus Torvalds's avatar
Linus Torvalds committed
126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
/*
 * 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

141 142 143 144
/* Flags for security_task_prlimit(). */
#define LSM_PRLIMIT_READ  1
#define LSM_PRLIMIT_WRITE 2

Linus Torvalds's avatar
Linus Torvalds committed
145 146
/* forward declares to avoid warnings */
struct sched_param;
147
struct request_sock;
Linus Torvalds's avatar
Linus Torvalds committed
148

149
/* bprm->unsafe reasons */
Linus Torvalds's avatar
Linus Torvalds committed
150 151
#define LSM_UNSAFE_SHARE	1
#define LSM_UNSAFE_PTRACE	2
152
#define LSM_UNSAFE_NO_NEW_PRIVS	4
Linus Torvalds's avatar
Linus Torvalds committed
153

154
#ifdef CONFIG_MMU
155
extern int mmap_min_addr_handler(struct ctl_table *table, int write,
156
				 void __user *buffer, size_t *lenp, loff_t *ppos);
157
#endif
158

159 160 161 162
/* 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
163 164
#ifdef CONFIG_SECURITY

165 166 167 168 169 170
struct security_mnt_opts {
	char **mnt_opts;
	int *mnt_opts_flags;
	int num_mnt_opts;
};

171 172 173 174
int call_lsm_notifier(enum lsm_event event, void *data);
int register_lsm_notifier(struct notifier_block *nb);
int unregister_lsm_notifier(struct notifier_block *nb);

175 176 177 178 179 180 181 182 183 184 185
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)
186
		for (i = 0; i < opts->num_mnt_opts; i++)
187 188 189 190 191 192 193 194
			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
195
/* prototypes */
196
extern int security_init(void);
Linus Torvalds's avatar
Linus Torvalds committed
197

198
/* Security operations */
199 200 201 202 203 204 205
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);
206
int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
207
int security_ptrace_traceme(struct task_struct *parent);
208
int security_capget(struct task_struct *target,
209 210 211
		    kernel_cap_t *effective,
		    kernel_cap_t *inheritable,
		    kernel_cap_t *permitted);
212 213 214 215
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);
216
int security_capable(const struct cred *cred, struct user_namespace *ns,
217
			int cap);
218 219
int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
			     int cap);
220 221
int security_quotactl(int cmds, int type, int id, struct super_block *sb);
int security_quota_on(struct dentry *dentry);
222
int security_syslog(int type);
223 224 225 226 227 228 229
int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
{
	struct timespec64 ts64 = timespec_to_timespec64(*ts);

	return security_settime64(&ts64, tz);
}
230
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
231
int security_bprm_set_creds(struct linux_binprm *bprm);
232
int security_bprm_check(struct linux_binprm *bprm);
233 234
void security_bprm_committing_creds(struct linux_binprm *bprm);
void security_bprm_committed_creds(struct linux_binprm *bprm);
235 236 237
int security_bprm_secureexec(struct linux_binprm *bprm);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
238
int security_sb_copy_data(char *orig, char *copy);
239
int security_sb_remount(struct super_block *sb, void *data);
240
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
241
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
242
int security_sb_statfs(struct dentry *dentry);
Al Viro's avatar
Al Viro committed
243
int security_sb_mount(const char *dev_name, const struct path *path,
Al Viro's avatar
Al Viro committed
244
		      const char *type, unsigned long flags, void *data);
245
int security_sb_umount(struct vfsmount *mnt, int flags);
Al Viro's avatar
Al Viro committed
246
int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
247 248 249 250
int security_sb_set_mnt_opts(struct super_block *sb,
				struct security_mnt_opts *opts,
				unsigned long kern_flags,
				unsigned long *set_kern_flags);
251
int security_sb_clone_mnt_opts(const struct super_block *oldsb,
252
				struct super_block *newsb);
253
int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
254
int security_dentry_init_security(struct dentry *dentry, int mode,
Al Viro's avatar
Al Viro committed
255
					const struct qstr *name, void **ctx,
256
					u32 *ctxlen);
257 258 259 260
int security_dentry_create_files_as(struct dentry *dentry, int mode,
					struct qstr *name,
					const struct cred *old,
					struct cred *new);
261

262 263 264
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,
265 266 267
				 const struct qstr *qstr,
				 initxattrs initxattrs, void *fs_data);
int security_old_inode_init_security(struct inode *inode, struct inode *dir,
268
				     const struct qstr *qstr, const char **name,
269
				     void **value, size_t *len);
Al Viro's avatar
Al Viro committed
270
int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
271 272 273 274
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,
275
			   const char *old_name);
276
int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
277
int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
Al Viro's avatar
Al Viro committed
278
int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
279
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
280 281
			  struct inode *new_dir, struct dentry *new_dentry,
			  unsigned int flags);
282
int security_inode_readlink(struct dentry *dentry);
283 284
int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
			       bool rcu);
285
int security_inode_permission(struct inode *inode, int mask);
286
int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
287
int security_inode_getattr(const struct path *path);
288 289 290 291 292
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);
293
int security_inode_listxattr(struct dentry *dentry);
294
int security_inode_removexattr(struct dentry *dentry, const char *name);
295 296
int security_inode_need_killpriv(struct dentry *dentry);
int security_inode_killpriv(struct dentry *dentry);
297
int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
298 299
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);
300
void security_inode_getsecid(struct inode *inode, u32 *secid);
301
int security_inode_copy_up(struct dentry *src, struct cred **new);
302
int security_inode_copy_up_xattr(const char *name);
303 304 305 306
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);
307 308
int security_mmap_file(struct file *file, unsigned long prot,
			unsigned long flags);
309
int security_mmap_addr(unsigned long addr);
310
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
311
			   unsigned long prot);
312 313
int security_file_lock(struct file *file, unsigned int cmd);
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
314
void security_file_set_fowner(struct file *file);
315
int security_file_send_sigiotask(struct task_struct *tsk,
316
				 struct fown_struct *fown, int sig);
317
int security_file_receive(struct file *file);
318
int security_file_open(struct file *file, const struct cred *cred);
319
int security_task_create(unsigned long clone_flags);
320
int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
321
void security_task_free(struct task_struct *task);
322
int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
323
void security_cred_free(struct cred *cred);
324
int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
325
void security_transfer_creds(struct cred *new, const struct cred *old);
326 327
int security_kernel_act_as(struct cred *new, u32 secid);
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
328
int security_kernel_module_request(char *kmod_name);
329
int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
330 331
int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
				   enum kernel_read_file_id id);
332 333
int security_task_fix_setuid(struct cred *new, const struct cred *old,
			     int flags);
334 335 336 337 338 339 340
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);
341 342
int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
			  unsigned int flags);
343 344
int security_task_setrlimit(struct task_struct *p, unsigned int resource,
		struct rlimit *new_rlim);
345
int security_task_setscheduler(struct task_struct *p);
346 347 348 349 350
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_prctl(int option, unsigned long arg2, unsigned long arg3,
351
			unsigned long arg4, unsigned long arg5);
352 353
void security_task_to_inode(struct task_struct *p, struct inode *inode);
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
354
void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
355 356 357 358 359 360 361
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,
362
			      struct msg_msg *msg, int msqflg);
363
int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
364
			      struct task_struct *target, long type, int mode);
365 366 367 368 369 370 371 372 373 374 375
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);
376
void security_d_instantiate(struct dentry *dentry, struct inode *inode);
377
int security_getprocattr(struct task_struct *p, char *name, char **value);
378
int security_setprocattr(const char *name, void *value, size_t size);
379
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
380
int security_ismaclabel(const char *name);
381
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
382
int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
383 384
void security_release_secctx(char *secdata, u32 seclen);

385
void security_inode_invalidate_secctx(struct inode *inode);
386 387 388
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
389
#else /* CONFIG_SECURITY */
390 391 392
struct security_mnt_opts {
};

393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
static inline int call_lsm_notifier(enum lsm_event event, void *data)
{
	return 0;
}

static inline int register_lsm_notifier(struct notifier_block *nb)
{
	return 0;
}

static inline  int unregister_lsm_notifier(struct notifier_block *nb)
{
	return 0;
}

408 409 410 411 412 413 414
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
415 416 417 418 419 420 421 422 423 424 425

/*
 * 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;
}

426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449
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;
}

450
static inline int security_ptrace_access_check(struct task_struct *child,
451 452
					     unsigned int mode)
{
453
	return cap_ptrace_access_check(child, mode);
454 455
}

456
static inline int security_ptrace_traceme(struct task_struct *parent)
Linus Torvalds's avatar
Linus Torvalds committed
457
{
458
	return cap_ptrace_traceme(parent);
Linus Torvalds's avatar
Linus Torvalds committed
459 460
}

461
static inline int security_capget(struct task_struct *target,
Linus Torvalds's avatar
Linus Torvalds committed
462 463 464 465
				   kernel_cap_t *effective,
				   kernel_cap_t *inheritable,
				   kernel_cap_t *permitted)
{
466
	return cap_capget(target, effective, inheritable, permitted);
Linus Torvalds's avatar
Linus Torvalds committed
467 468
}

469 470 471 472 473
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
474
{
475
	return cap_capset(new, old, effective, inheritable, permitted);
Linus Torvalds's avatar
Linus Torvalds committed
476 477
}

478 479
static inline int security_capable(const struct cred *cred,
				   struct user_namespace *ns, int cap)
480
{
481
	return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
482 483
}

484 485 486
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);
487 488
}

489 490
static inline int security_quotactl(int cmds, int type, int id,
				     struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
491 492 493 494
{
	return 0;
}

495
static inline int security_quota_on(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
496 497 498 499
{
	return 0;
}

500
static inline int security_syslog(int type)
Linus Torvalds's avatar
Linus Torvalds committed
501
{
502
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
503 504
}

505 506 507 508 509 510
static inline int security_settime64(const struct timespec64 *ts,
				     const struct timezone *tz)
{
	return cap_settime(ts, tz);
}

511 512
static inline int security_settime(const struct timespec *ts,
				   const struct timezone *tz)
Linus Torvalds's avatar
Linus Torvalds committed
513
{
514 515 516
	struct timespec64 ts64 = timespec_to_timespec64(*ts);

	return cap_settime(&ts64, tz);
Linus Torvalds's avatar
Linus Torvalds committed
517 518
}

519
static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
Alan Cox's avatar
Alan Cox committed
520
{
521
	return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
Alan Cox's avatar
Alan Cox committed
522 523
}

524
static inline int security_bprm_set_creds(struct linux_binprm *bprm)
525
{
526
	return cap_bprm_set_creds(bprm);
Linus Torvalds's avatar
Linus Torvalds committed
527 528
}

529
static inline int security_bprm_check(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
530
{
531
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
532 533
}

534
static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
535 536 537
{
}

538
static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
539 540 541
{
}

542
static inline int security_bprm_secureexec(struct linux_binprm *bprm)
Linus Torvalds's avatar
Linus Torvalds committed
543 544 545 546
{
	return cap_bprm_secureexec(bprm);
}

547
static inline int security_sb_alloc(struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
548 549 550 551
{
	return 0;
}

552
static inline void security_sb_free(struct super_block *sb)
Linus Torvalds's avatar
Linus Torvalds committed
553 554
{ }

555
static inline int security_sb_copy_data(char *orig, char *copy)
Linus Torvalds's avatar
Linus Torvalds committed
556 557 558 559
{
	return 0;
}

560 561 562 563 564
static inline int security_sb_remount(struct super_block *sb, void *data)
{
	return 0;
}

565
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
Linus Torvalds's avatar
Linus Torvalds committed
566 567 568 569
{
	return 0;
}

570 571 572 573 574 575
static inline int security_sb_show_options(struct seq_file *m,
					   struct super_block *sb)
{
	return 0;
}

576
static inline int security_sb_statfs(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
577 578 579 580
{
	return 0;
}

Al Viro's avatar
Al Viro committed
581
static inline int security_sb_mount(const char *dev_name, const struct path *path,
Al Viro's avatar
Al Viro committed
582
				    const char *type, unsigned long flags,
Linus Torvalds's avatar
Linus Torvalds committed
583 584 585 586 587
				    void *data)
{
	return 0;
}

588
static inline int security_sb_umount(struct vfsmount *mnt, int flags)
Linus Torvalds's avatar
Linus Torvalds committed
589 590 591 592
{
	return 0;
}

Al Viro's avatar
Al Viro committed
593 594
static inline int security_sb_pivotroot(const struct path *old_path,
					const struct path *new_path)
Linus Torvalds's avatar
Linus Torvalds committed
595 596 597 598
{
	return 0;
}

599
static inline int security_sb_set_mnt_opts(struct super_block *sb,
600 601 602
					   struct security_mnt_opts *opts,
					   unsigned long kern_flags,
					   unsigned long *set_kern_flags)
603 604 605 606
{
	return 0;
}

607
static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
608
					      struct super_block *newsb)
609 610 611
{
	return 0;
}
612 613 614 615 616

static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
{
	return 0;
}
Linus Torvalds's avatar
Linus Torvalds committed
617

618
static inline int security_inode_alloc(struct inode *inode)
Linus Torvalds's avatar
Linus Torvalds committed
619 620 621 622
{
	return 0;
}

623
static inline void security_inode_free(struct inode *inode)
Linus Torvalds's avatar
Linus Torvalds committed
624
{ }
625

626 627
static inline int security_dentry_init_security(struct dentry *dentry,
						 int mode,
Al Viro's avatar
Al Viro committed
628
						 const struct qstr *name,
629 630 631 632 633 634
						 void **ctx,
						 u32 *ctxlen)
{
	return -EOPNOTSUPP;
}

635 636 637 638 639 640 641 642
static inline int security_dentry_create_files_as(struct dentry *dentry,
						  int mode, struct qstr *name,
						  const struct cred *old,
						  struct cred *new)
{
	return 0;
}

643

644
static inline int security_inode_init_security(struct inode *inode,
645
						struct inode *dir,
646
						const struct qstr *qstr,
Mark Rustad's avatar
Mark Rustad committed
647
						const initxattrs xattrs,
648
						void *fs_data)
649
{
Mimi Zohar's avatar
Mimi Zohar committed
650
	return 0;
651
}
652

Mimi Zohar's avatar
Mimi Zohar committed
653 654 655
static inline int security_old_inode_init_security(struct inode *inode,
						   struct inode *dir,
						   const struct qstr *qstr,
656 657
						   const char **name,
						   void **value, size_t *len)
658
{
659
	return -EOPNOTSUPP;
660 661
}

662
static inline int security_inode_create(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
663
					 struct dentry *dentry,
Al Viro's avatar
Al Viro committed
664
					 umode_t mode)
Linus Torvalds's avatar
Linus Torvalds committed
665 666 667 668
{
	return 0;
}

669
static inline int security_inode_link(struct dentry *old_dentry,
Linus Torvalds's avatar
Linus Torvalds committed
670 671 672 673 674 675
				       struct inode *dir,
				       struct dentry *new_dentry)
{
	return 0;
}

676
static inline int security_inode_unlink(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
677 678 679 680 681
					 struct dentry *dentry)
{
	return 0;
}

682
static inline int security_inode_symlink(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
683 684 685 686 687 688
					  struct dentry *dentry,
					  const char *old_name)
{
	return 0;
}

689
static inline int security_inode_mkdir(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
690 691 692 693 694 695
					struct dentry *dentry,
					int mode)
{
	return 0;
}

696
static inline int security_inode_rmdir(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
697 698 699 700 701
					struct dentry *dentry)
{
	return 0;
}

702
static inline int security_inode_mknod(struct inode *dir,
Linus Torvalds's avatar
Linus Torvalds committed
703 704 705 706 707 708
					struct dentry *dentry,
					int mode, dev_t dev)
{
	return 0;
}

709
static inline int security_inode_rename(struct inode *old_dir,
Linus Torvalds's avatar
Linus Torvalds committed
710 711
					 struct dentry *old_dentry,
					 struct inode *new_dir,
712 713
					 struct dentry *new_dentry,
					 unsigned int flags)
Linus Torvalds's avatar
Linus Torvalds committed
714 715 716 717
{
	return 0;
}

718
static inline int security_inode_readlink(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
719 720 721 722
{
	return 0;
}

723 724 725
static inline int security_inode_follow_link(struct dentry *dentry,
					     struct inode *inode,
					     bool rcu)
Linus Torvalds's avatar
Linus Torvalds committed
726 727 728 729
{
	return 0;
}

730
static inline int security_inode_permission(struct inode *inode, int mask)
Linus Torvalds's avatar
Linus Torvalds committed
731 732 733 734
{
	return 0;
}

735
static inline int security_inode_setattr(struct dentry *dentry,
Linus Torvalds's avatar
Linus Torvalds committed
736 737 738 739 740
					  struct iattr *attr)
{
	return 0;
}

741
static inline int security_inode_getattr(const struct path *path)
Linus Torvalds's avatar
Linus Torvalds committed
742 743 744 745
{
	return 0;
}

746 747
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
748 749 750 751
{
	return cap_inode_setxattr(dentry, name, value, size, flags);
}

752 753
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
754 755
{ }

756 757
static inline int security_inode_getxattr(struct dentry *dentry,
			const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
758 759 760 761
{
	return 0;
}

762
static inline int security_inode_listxattr(struct dentry *dentry)
Linus Torvalds's avatar
Linus Torvalds committed
763 764 765 766
{
	return 0;
}

767 768
static inline int security_inode_removexattr(struct dentry *dentry,
			const char *name)
Linus Torvalds's avatar
Linus Torvalds committed
769 770 771 772
{
	return cap_inode_removexattr(dentry, name);
}

773 774 775 776 777 778 779 780 781 782
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);
}

783
static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
Linus Torvalds's avatar
Linus Torvalds committed
784 785 786 787 788 789 790 791 792 793 794 795 796 797
{
	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;
}

798
static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
799 800 801 802
{
	*secid = 0;
}

803 804 805 806 807
static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
{
	return 0;
}

808 809 810 811 812
static inline int security_inode_copy_up_xattr(const char *name)
{
	return -EOPNOTSUPP;
}

813
static inline int security_file_permission(struct file *file, int mask)
Linus Torvalds's avatar
Linus Torvalds committed
814 815 816 817
{
	return 0;
}

818
static inline int security_file_alloc(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
819 820 821 822
{
	return 0;
}

823
static inline void security_file_free(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
824 825
{ }

826 827
static inline int security_file_ioctl(struct file *file, unsigned int cmd,
				      unsigned long arg)
Linus Torvalds's avatar
Linus Torvalds committed
828 829 830 831
{
	return 0;
}

832
static inline int security_mmap_file(struct file *file, unsigned long prot,
833 834 835 836 837 838
				     unsigned long flags)
{
	return 0;
}

static inline int security_mmap_addr(unsigned long addr)
Linus Torvalds's avatar
Linus Torvalds committed
839
{
840
	return cap_mmap_addr(addr);
Linus Torvalds's avatar
Linus Torvalds committed
841 842
}

843 844 845
static inline int security_file_mprotect(struct vm_area_struct *vma,
					 unsigned long reqprot,
					 unsigned long prot)
Linus Torvalds's avatar
Linus Torvalds committed
846 847 848 849
{
	return 0;
}

850
static inline int security_file_lock(struct file *file, unsigned int cmd)
Linus Torvalds's avatar
Linus Torvalds committed
851 852 853 854
{
	return 0;
}

855 856
static inline int security_file_fcntl(struct file *file, unsigned int cmd,
				      unsigned long arg)
Linus Torvalds's avatar
Linus Torvalds committed
857 858 859 860
{
	return 0;
}

861
static inline void security_file_set_fowner(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
862
{
863
	return;
Linus Torvalds's avatar
Linus Torvalds committed
864 865
}

866 867 868
static inline int security_file_send_sigiotask(struct task_struct *tsk,
					       struct fown_struct *fown,
					       int sig)
Linus Torvalds's avatar
Linus Torvalds committed
869 870 871 872
{
	return 0;
}

873
static inline int security_file_receive(struct file *file)
Linus Torvalds's avatar
Linus Torvalds committed
874 875 876 877
{
	return 0;
}

878 879
static inline int security_file_open(struct file *file,
				     const struct cred *cred)
880 881 882 883
{
	return 0;
}

884
static inline int security_task_create(unsigned long clone_flags)
Linus Torvalds's avatar
Linus Torvalds committed
885 886 887 888
{
	return 0;
}

889 890 891 892 893 894
static inline int security_task_alloc(struct task_struct *task,
				      unsigned long clone_flags)
{
	return 0;
}

895 896 897
static inline void security_task_free(struct task_struct *task)
{ }

898 899 900 901
static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
{
	return 0;
}
902

903 904 905 906 907 908
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
909 910 911 912
{
	return 0;
}

913 914 915 916 917
static inline void security_transfer_creds(struct cred *new,
					   const struct cred *old)
{
}

918 919 920 921 922 923 924 925 926 927 928
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;
}

929
static inline int security_kernel_module_request(char *kmod_name)
930 931
{
	return 0;
Linus Torvalds's avatar
Linus Torvalds committed
932 933
}

934 935 936 937 938 939
static inline int security_kernel_read_file(struct file *file,
					    enum kernel_read_file_id id)
{
	return 0;
}

940
static inline int security_kernel_post_read_file(struct file *file,
941 942
						 char *buf, loff_t size,
						 enum kernel_read_file_id id)
943 944 945 946
{
	return 0;
}

947 948 949
static inline int security_task_fix_setuid(struct cred *new,
					   const struct cred *old,
					   int flags)
Linus Torvalds's avatar
Linus Torvalds committed
950
{
951
	return cap_task_fix_setuid(new, old, flags);
Linus Torvalds's avatar
Linus Torvalds committed
952 953
}

954
static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
Linus Torvalds's avatar
Linus Torvalds committed
955 956 957 958
{
	return 0;
}

959
static inline int security_task_getpgid(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
960 961 962 963
{
	return 0;
}

964
static inline int security_task_getsid(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
965 966 967 968
{
	return 0;
}

969
static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
970 971 972
{
	*secid = 0;
}
973

974
static inline int security_task_setnice(struct task_struct *p, int nice)
Linus Torvalds's avatar
Linus Torvalds committed
975
{
976
	return cap_task_setnice(p, nice);
Linus Torvalds's avatar
Linus Torvalds committed
977 978
}

979
static inline int security_task_setioprio(struct task_struct *p, int ioprio)
980
{
981
	return cap_task_setioprio(p, ioprio);
982 983
}

984
static inline int security_task_getioprio(struct task_struct *p)
985 986 987 988
{
	return 0;
}

989 990 991 992 993 994 995
static inline int security_task_prlimit(const struct cred *cred,
					const struct cred *tcred,
					unsigned int flags)
{
	return 0;
}

996 997
static inline int security_task_setrlimit(struct task_struct *p,
					  unsigned int resource,
998
					  struct rlimit *new_rlim)
Linus Torvalds's avatar
Linus Torvalds committed
999 1000 1001 1002
{
	return 0;
}

1003
static inline int security_task_setscheduler(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
1004
{
1005
	return cap_task_setscheduler(p);
Linus Torvalds's avatar
Linus Torvalds committed
1006 1007
}

1008
static inline int security_task_getscheduler(struct task_struct *p)
Linus Torvalds's avatar
Linus Torvalds committed
1009 1010 1011 1012
{
	return 0;
}

1013
static inline int security_task_movememory(struct task_struct *p)
1014 1015 1016 1017