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
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.
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.
23 #ifndef __LINUX_SECURITY_H
24 #define __LINUX_SECURITY_H
26 #include <linux/kernel_read_file.h>
27 #include <linux/key.h>
28 #include <linux/capability.h>
30 #include <linux/slab.h>
31 #include <linux/err.h>
32 #include <linux/string.h>
34 #include <linux/sockptr.h>
39 struct kernel_siginfo;
52 struct file_operations;
62 struct watch_notification;
64 /* Default (no) options for the capable function */
65 #define CAP_OPT_NONE 0x0
66 /* If capable should audit the security request */
67 #define CAP_OPT_NOAUDIT BIT(1)
68 /* If capable is being called by a setid function */
69 #define CAP_OPT_INSETID BIT(2)
71 /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
72 #define SECURITY_LSM_NATIVE_LABELS 1
76 struct user_namespace;
84 * These are reasons that can be passed to the security_locked_down()
85 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
86 * ability for userland to modify kernel code) are placed before
87 * LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel
88 * confidentiality (ie, the ability for userland to extract
89 * information from the running kernel that would otherwise be
90 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
92 * LSM authors should note that the semantics of any given lockdown
93 * reason are not guaranteed to be stable - the same reason may block
94 * one set of features in one kernel release, and a slightly different
95 * set of features in a later kernel release. LSMs that seek to expose
96 * lockdown policy at any level of granularity other than "none",
97 * "integrity" or "confidentiality" are responsible for either
98 * ensuring that they expose a consistent level of functionality to
99 * userland, or ensuring that userland is aware that this is
100 * potentially a moving target. It is easy to misuse this information
101 * in a way that could break userspace. Please be careful not to do
104 * If you add to this, remember to extend lockdown_reasons in
105 * security/lockdown/lockdown.c.
107 enum lockdown_reason {
109 LOCKDOWN_MODULE_SIGNATURE,
113 LOCKDOWN_HIBERNATION,
117 LOCKDOWN_ACPI_TABLES,
118 LOCKDOWN_DEVICE_TREE,
120 LOCKDOWN_TIOCSSERIAL,
121 LOCKDOWN_MODULE_PARAMETERS,
125 LOCKDOWN_BPF_WRITE_USER,
126 LOCKDOWN_DBG_WRITE_KERNEL,
127 LOCKDOWN_RTAS_ERROR_INJECTION,
128 LOCKDOWN_INTEGRITY_MAX,
131 LOCKDOWN_BPF_READ_KERNEL,
132 LOCKDOWN_DBG_READ_KERNEL,
136 LOCKDOWN_XFRM_SECRET,
137 LOCKDOWN_CONFIDENTIALITY_MAX,
140 extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
142 /* These functions are in security/commoncap.c */
143 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
144 int cap, unsigned int opts);
145 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
146 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
147 extern int cap_ptrace_traceme(struct task_struct *parent);
148 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
149 extern int cap_capset(struct cred *new, const struct cred *old,
150 const kernel_cap_t *effective,
151 const kernel_cap_t *inheritable,
152 const kernel_cap_t *permitted);
153 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, struct file *file);
154 int cap_inode_setxattr(struct dentry *dentry, const char *name,
155 const void *value, size_t size, int flags);
156 int cap_inode_removexattr(struct mnt_idmap *idmap,
157 struct dentry *dentry, const char *name);
158 int cap_inode_need_killpriv(struct dentry *dentry);
159 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
160 int cap_inode_getsecurity(struct mnt_idmap *idmap,
161 struct inode *inode, const char *name, void **buffer,
163 extern int cap_mmap_addr(unsigned long addr);
164 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
165 unsigned long prot, unsigned long flags);
166 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
167 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
168 unsigned long arg4, unsigned long arg5);
169 extern int cap_task_setscheduler(struct task_struct *p);
170 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
171 extern int cap_task_setnice(struct task_struct *p, int nice);
172 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
181 struct xfrm_selector;
184 struct xfrm_user_sec_ctx;
186 struct sctp_association;
189 extern unsigned long mmap_min_addr;
190 extern unsigned long dac_mmap_min_addr;
192 #define mmap_min_addr 0UL
193 #define dac_mmap_min_addr 0UL
197 * Values used in the task_security_ops calls
199 /* setuid or setgid, id0 == uid or gid */
200 #define LSM_SETID_ID 1
202 /* setreuid or setregid, id0 == real, id1 == eff */
203 #define LSM_SETID_RE 2
205 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
206 #define LSM_SETID_RES 4
208 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
209 #define LSM_SETID_FS 8
211 /* Flags for security_task_prlimit(). */
212 #define LSM_PRLIMIT_READ 1
213 #define LSM_PRLIMIT_WRITE 2
215 /* forward declares to avoid warnings */
219 /* bprm->unsafe reasons */
220 #define LSM_UNSAFE_SHARE 1
221 #define LSM_UNSAFE_PTRACE 2
222 #define LSM_UNSAFE_NO_NEW_PRIVS 4
225 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
226 void *buffer, size_t *lenp, loff_t *ppos);
229 /* security_inode_init_security callback function to write xattrs */
230 typedef int (*initxattrs) (struct inode *inode,
231 const struct xattr *xattr_array, void *fs_data);
234 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
235 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
236 #define __data_id_stringify(dummy, str) #str,
238 enum kernel_load_data_id {
239 __kernel_read_file_id(__data_id_enumify)
242 static const char * const kernel_load_data_str[] = {
243 __kernel_read_file_id(__data_id_stringify)
246 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
248 if ((unsigned)id >= LOADING_MAX_ID)
249 return kernel_load_data_str[LOADING_UNKNOWN];
251 return kernel_load_data_str[id];
254 #ifdef CONFIG_SECURITY
256 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
257 int register_blocking_lsm_notifier(struct notifier_block *nb);
258 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
261 extern int security_init(void);
262 extern int early_security_init(void);
264 /* Security operations */
265 int security_binder_set_context_mgr(const struct cred *mgr);
266 int security_binder_transaction(const struct cred *from,
267 const struct cred *to);
268 int security_binder_transfer_binder(const struct cred *from,
269 const struct cred *to);
270 int security_binder_transfer_file(const struct cred *from,
271 const struct cred *to, struct file *file);
272 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
273 int security_ptrace_traceme(struct task_struct *parent);
274 int security_capget(struct task_struct *target,
275 kernel_cap_t *effective,
276 kernel_cap_t *inheritable,
277 kernel_cap_t *permitted);
278 int security_capset(struct cred *new, const struct cred *old,
279 const kernel_cap_t *effective,
280 const kernel_cap_t *inheritable,
281 const kernel_cap_t *permitted);
282 int security_capable(const struct cred *cred,
283 struct user_namespace *ns,
286 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
287 int security_quota_on(struct dentry *dentry);
288 int security_syslog(int type);
289 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
290 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
291 int security_bprm_creds_for_exec(struct linux_binprm *bprm);
292 int security_bprm_creds_from_file(struct linux_binprm *bprm, struct file *file);
293 int security_bprm_check(struct linux_binprm *bprm);
294 void security_bprm_committing_creds(struct linux_binprm *bprm);
295 void security_bprm_committed_creds(struct linux_binprm *bprm);
296 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
297 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
298 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
299 int security_sb_alloc(struct super_block *sb);
300 void security_sb_delete(struct super_block *sb);
301 void security_sb_free(struct super_block *sb);
302 void security_free_mnt_opts(void **mnt_opts);
303 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
304 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
305 int security_sb_remount(struct super_block *sb, void *mnt_opts);
306 int security_sb_kern_mount(struct super_block *sb);
307 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
308 int security_sb_statfs(struct dentry *dentry);
309 int security_sb_mount(const char *dev_name, const struct path *path,
310 const char *type, unsigned long flags, void *data);
311 int security_sb_umount(struct vfsmount *mnt, int flags);
312 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
313 int security_sb_set_mnt_opts(struct super_block *sb,
315 unsigned long kern_flags,
316 unsigned long *set_kern_flags);
317 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
318 struct super_block *newsb,
319 unsigned long kern_flags,
320 unsigned long *set_kern_flags);
321 int security_move_mount(const struct path *from_path, const struct path *to_path);
322 int security_dentry_init_security(struct dentry *dentry, int mode,
323 const struct qstr *name,
324 const char **xattr_name, void **ctx,
326 int security_dentry_create_files_as(struct dentry *dentry, int mode,
328 const struct cred *old,
330 int security_path_notify(const struct path *path, u64 mask,
331 unsigned int obj_type);
332 int security_inode_alloc(struct inode *inode);
333 void security_inode_free(struct inode *inode);
334 int security_inode_init_security(struct inode *inode, struct inode *dir,
335 const struct qstr *qstr,
336 initxattrs initxattrs, void *fs_data);
337 int security_inode_init_security_anon(struct inode *inode,
338 const struct qstr *name,
339 const struct inode *context_inode);
340 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
341 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
342 struct dentry *new_dentry);
343 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
344 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
345 const char *old_name);
346 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
347 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
348 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
349 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
350 struct inode *new_dir, struct dentry *new_dentry,
352 int security_inode_readlink(struct dentry *dentry);
353 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
355 int security_inode_permission(struct inode *inode, int mask);
356 int security_inode_setattr(struct mnt_idmap *idmap,
357 struct dentry *dentry, struct iattr *attr);
358 int security_inode_getattr(const struct path *path);
359 int security_inode_setxattr(struct mnt_idmap *idmap,
360 struct dentry *dentry, const char *name,
361 const void *value, size_t size, int flags);
362 int security_inode_set_acl(struct mnt_idmap *idmap,
363 struct dentry *dentry, const char *acl_name,
364 struct posix_acl *kacl);
365 int security_inode_get_acl(struct mnt_idmap *idmap,
366 struct dentry *dentry, const char *acl_name);
367 int security_inode_remove_acl(struct mnt_idmap *idmap,
368 struct dentry *dentry, const char *acl_name);
369 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
370 const void *value, size_t size, int flags);
371 int security_inode_getxattr(struct dentry *dentry, const char *name);
372 int security_inode_listxattr(struct dentry *dentry);
373 int security_inode_removexattr(struct mnt_idmap *idmap,
374 struct dentry *dentry, const char *name);
375 int security_inode_need_killpriv(struct dentry *dentry);
376 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
377 int security_inode_getsecurity(struct mnt_idmap *idmap,
378 struct inode *inode, const char *name,
379 void **buffer, bool alloc);
380 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
381 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
382 void security_inode_getsecid(struct inode *inode, u32 *secid);
383 int security_inode_copy_up(struct dentry *src, struct cred **new);
384 int security_inode_copy_up_xattr(const char *name);
385 int security_kernfs_init_security(struct kernfs_node *kn_dir,
386 struct kernfs_node *kn);
387 int security_file_permission(struct file *file, int mask);
388 int security_file_alloc(struct file *file);
389 void security_file_free(struct file *file);
390 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
391 int security_mmap_file(struct file *file, unsigned long prot,
392 unsigned long flags);
393 int security_mmap_addr(unsigned long addr);
394 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
396 int security_file_lock(struct file *file, unsigned int cmd);
397 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
398 void security_file_set_fowner(struct file *file);
399 int security_file_send_sigiotask(struct task_struct *tsk,
400 struct fown_struct *fown, int sig);
401 int security_file_receive(struct file *file);
402 int security_file_open(struct file *file);
403 int security_file_truncate(struct file *file);
404 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
405 void security_task_free(struct task_struct *task);
406 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
407 void security_cred_free(struct cred *cred);
408 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
409 void security_transfer_creds(struct cred *new, const struct cred *old);
410 void security_cred_getsecid(const struct cred *c, u32 *secid);
411 int security_kernel_act_as(struct cred *new, u32 secid);
412 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
413 int security_kernel_module_request(char *kmod_name);
414 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
415 int security_kernel_post_load_data(char *buf, loff_t size,
416 enum kernel_load_data_id id,
418 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
420 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
421 enum kernel_read_file_id id);
422 int security_task_fix_setuid(struct cred *new, const struct cred *old,
424 int security_task_fix_setgid(struct cred *new, const struct cred *old,
426 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
427 int security_task_setpgid(struct task_struct *p, pid_t pgid);
428 int security_task_getpgid(struct task_struct *p);
429 int security_task_getsid(struct task_struct *p);
430 void security_current_getsecid_subj(u32 *secid);
431 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
432 int security_task_setnice(struct task_struct *p, int nice);
433 int security_task_setioprio(struct task_struct *p, int ioprio);
434 int security_task_getioprio(struct task_struct *p);
435 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
437 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
438 struct rlimit *new_rlim);
439 int security_task_setscheduler(struct task_struct *p);
440 int security_task_getscheduler(struct task_struct *p);
441 int security_task_movememory(struct task_struct *p);
442 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
443 int sig, const struct cred *cred);
444 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
445 unsigned long arg4, unsigned long arg5);
446 void security_task_to_inode(struct task_struct *p, struct inode *inode);
447 int security_create_user_ns(const struct cred *cred);
448 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
449 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
450 int security_msg_msg_alloc(struct msg_msg *msg);
451 void security_msg_msg_free(struct msg_msg *msg);
452 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
453 void security_msg_queue_free(struct kern_ipc_perm *msq);
454 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
455 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
456 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
457 struct msg_msg *msg, int msqflg);
458 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
459 struct task_struct *target, long type, int mode);
460 int security_shm_alloc(struct kern_ipc_perm *shp);
461 void security_shm_free(struct kern_ipc_perm *shp);
462 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
463 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
464 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
465 int security_sem_alloc(struct kern_ipc_perm *sma);
466 void security_sem_free(struct kern_ipc_perm *sma);
467 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
468 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
469 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
470 unsigned nsops, int alter);
471 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
472 int security_getprocattr(struct task_struct *p, const char *lsm, const char *name,
474 int security_setprocattr(const char *lsm, const char *name, void *value,
476 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
477 int security_ismaclabel(const char *name);
478 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
479 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
480 void security_release_secctx(char *secdata, u32 seclen);
481 void security_inode_invalidate_secctx(struct inode *inode);
482 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
483 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
484 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
485 int security_locked_down(enum lockdown_reason what);
486 #else /* CONFIG_SECURITY */
488 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
493 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
498 static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
503 static inline void security_free_mnt_opts(void **mnt_opts)
508 * This is the default capabilities functionality. Most of these functions
509 * are just stubbed out, but a few must call the proper capable code.
512 static inline int security_init(void)
517 static inline int early_security_init(void)
522 static inline int security_binder_set_context_mgr(const struct cred *mgr)
527 static inline int security_binder_transaction(const struct cred *from,
528 const struct cred *to)
533 static inline int security_binder_transfer_binder(const struct cred *from,
534 const struct cred *to)
539 static inline int security_binder_transfer_file(const struct cred *from,
540 const struct cred *to,
546 static inline int security_ptrace_access_check(struct task_struct *child,
549 return cap_ptrace_access_check(child, mode);
552 static inline int security_ptrace_traceme(struct task_struct *parent)
554 return cap_ptrace_traceme(parent);
557 static inline int security_capget(struct task_struct *target,
558 kernel_cap_t *effective,
559 kernel_cap_t *inheritable,
560 kernel_cap_t *permitted)
562 return cap_capget(target, effective, inheritable, permitted);
565 static inline int security_capset(struct cred *new,
566 const struct cred *old,
567 const kernel_cap_t *effective,
568 const kernel_cap_t *inheritable,
569 const kernel_cap_t *permitted)
571 return cap_capset(new, old, effective, inheritable, permitted);
574 static inline int security_capable(const struct cred *cred,
575 struct user_namespace *ns,
579 return cap_capable(cred, ns, cap, opts);
582 static inline int security_quotactl(int cmds, int type, int id,
583 struct super_block *sb)
588 static inline int security_quota_on(struct dentry *dentry)
593 static inline int security_syslog(int type)
598 static inline int security_settime64(const struct timespec64 *ts,
599 const struct timezone *tz)
601 return cap_settime(ts, tz);
604 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
606 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
609 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
614 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
617 return cap_bprm_creds_from_file(bprm, file);
620 static inline int security_bprm_check(struct linux_binprm *bprm)
625 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
629 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
633 static inline int security_fs_context_submount(struct fs_context *fc,
634 struct super_block *reference)
638 static inline int security_fs_context_dup(struct fs_context *fc,
639 struct fs_context *src_fc)
643 static inline int security_fs_context_parse_param(struct fs_context *fc,
644 struct fs_parameter *param)
649 static inline int security_sb_alloc(struct super_block *sb)
654 static inline void security_sb_delete(struct super_block *sb)
657 static inline void security_sb_free(struct super_block *sb)
660 static inline int security_sb_eat_lsm_opts(char *options,
666 static inline int security_sb_remount(struct super_block *sb,
672 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
679 static inline int security_sb_kern_mount(struct super_block *sb)
684 static inline int security_sb_show_options(struct seq_file *m,
685 struct super_block *sb)
690 static inline int security_sb_statfs(struct dentry *dentry)
695 static inline int security_sb_mount(const char *dev_name, const struct path *path,
696 const char *type, unsigned long flags,
702 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
707 static inline int security_sb_pivotroot(const struct path *old_path,
708 const struct path *new_path)
713 static inline int security_sb_set_mnt_opts(struct super_block *sb,
715 unsigned long kern_flags,
716 unsigned long *set_kern_flags)
721 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
722 struct super_block *newsb,
723 unsigned long kern_flags,
724 unsigned long *set_kern_flags)
729 static inline int security_move_mount(const struct path *from_path,
730 const struct path *to_path)
735 static inline int security_path_notify(const struct path *path, u64 mask,
736 unsigned int obj_type)
741 static inline int security_inode_alloc(struct inode *inode)
746 static inline void security_inode_free(struct inode *inode)
749 static inline int security_dentry_init_security(struct dentry *dentry,
751 const struct qstr *name,
752 const char **xattr_name,
759 static inline int security_dentry_create_files_as(struct dentry *dentry,
760 int mode, struct qstr *name,
761 const struct cred *old,
768 static inline int security_inode_init_security(struct inode *inode,
770 const struct qstr *qstr,
771 const initxattrs xattrs,
777 static inline int security_inode_init_security_anon(struct inode *inode,
778 const struct qstr *name,
779 const struct inode *context_inode)
784 static inline int security_inode_create(struct inode *dir,
785 struct dentry *dentry,
791 static inline int security_inode_link(struct dentry *old_dentry,
793 struct dentry *new_dentry)
798 static inline int security_inode_unlink(struct inode *dir,
799 struct dentry *dentry)
804 static inline int security_inode_symlink(struct inode *dir,
805 struct dentry *dentry,
806 const char *old_name)
811 static inline int security_inode_mkdir(struct inode *dir,
812 struct dentry *dentry,
818 static inline int security_inode_rmdir(struct inode *dir,
819 struct dentry *dentry)
824 static inline int security_inode_mknod(struct inode *dir,
825 struct dentry *dentry,
831 static inline int security_inode_rename(struct inode *old_dir,
832 struct dentry *old_dentry,
833 struct inode *new_dir,
834 struct dentry *new_dentry,
840 static inline int security_inode_readlink(struct dentry *dentry)
845 static inline int security_inode_follow_link(struct dentry *dentry,
852 static inline int security_inode_permission(struct inode *inode, int mask)
857 static inline int security_inode_setattr(struct mnt_idmap *idmap,
858 struct dentry *dentry,
864 static inline int security_inode_getattr(const struct path *path)
869 static inline int security_inode_setxattr(struct mnt_idmap *idmap,
870 struct dentry *dentry, const char *name, const void *value,
871 size_t size, int flags)
873 return cap_inode_setxattr(dentry, name, value, size, flags);
876 static inline int security_inode_set_acl(struct mnt_idmap *idmap,
877 struct dentry *dentry,
878 const char *acl_name,
879 struct posix_acl *kacl)
884 static inline int security_inode_get_acl(struct mnt_idmap *idmap,
885 struct dentry *dentry,
886 const char *acl_name)
891 static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
892 struct dentry *dentry,
893 const char *acl_name)
898 static inline void security_inode_post_setxattr(struct dentry *dentry,
899 const char *name, const void *value, size_t size, int flags)
902 static inline int security_inode_getxattr(struct dentry *dentry,
908 static inline int security_inode_listxattr(struct dentry *dentry)
913 static inline int security_inode_removexattr(struct mnt_idmap *idmap,
914 struct dentry *dentry,
917 return cap_inode_removexattr(idmap, dentry, name);
920 static inline int security_inode_need_killpriv(struct dentry *dentry)
922 return cap_inode_need_killpriv(dentry);
925 static inline int security_inode_killpriv(struct mnt_idmap *idmap,
926 struct dentry *dentry)
928 return cap_inode_killpriv(idmap, dentry);
931 static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
933 const char *name, void **buffer,
936 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
939 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
944 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
949 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
954 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
959 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
960 struct kernfs_node *kn)
965 static inline int security_inode_copy_up_xattr(const char *name)
970 static inline int security_file_permission(struct file *file, int mask)
975 static inline int security_file_alloc(struct file *file)
980 static inline void security_file_free(struct file *file)
983 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
989 static inline int security_mmap_file(struct file *file, unsigned long prot,
995 static inline int security_mmap_addr(unsigned long addr)
997 return cap_mmap_addr(addr);
1000 static inline int security_file_mprotect(struct vm_area_struct *vma,
1001 unsigned long reqprot,
1007 static inline int security_file_lock(struct file *file, unsigned int cmd)
1012 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1018 static inline void security_file_set_fowner(struct file *file)
1023 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1024 struct fown_struct *fown,
1030 static inline int security_file_receive(struct file *file)
1035 static inline int security_file_open(struct file *file)
1040 static inline int security_file_truncate(struct file *file)
1045 static inline int security_task_alloc(struct task_struct *task,
1046 unsigned long clone_flags)
1051 static inline void security_task_free(struct task_struct *task)
1054 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1059 static inline void security_cred_free(struct cred *cred)
1062 static inline int security_prepare_creds(struct cred *new,
1063 const struct cred *old,
1069 static inline void security_transfer_creds(struct cred *new,
1070 const struct cred *old)
1074 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1079 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1084 static inline int security_kernel_create_files_as(struct cred *cred,
1085 struct inode *inode)
1090 static inline int security_kernel_module_request(char *kmod_name)
1095 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1100 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1101 enum kernel_load_data_id id,
1107 static inline int security_kernel_read_file(struct file *file,
1108 enum kernel_read_file_id id,
1114 static inline int security_kernel_post_read_file(struct file *file,
1115 char *buf, loff_t size,
1116 enum kernel_read_file_id id)
1121 static inline int security_task_fix_setuid(struct cred *new,
1122 const struct cred *old,
1125 return cap_task_fix_setuid(new, old, flags);
1128 static inline int security_task_fix_setgid(struct cred *new,
1129 const struct cred *old,
1135 static inline int security_task_fix_setgroups(struct cred *new,
1136 const struct cred *old)
1141 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1146 static inline int security_task_getpgid(struct task_struct *p)
1151 static inline int security_task_getsid(struct task_struct *p)
1156 static inline void security_current_getsecid_subj(u32 *secid)
1161 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1166 static inline int security_task_setnice(struct task_struct *p, int nice)
1168 return cap_task_setnice(p, nice);
1171 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1173 return cap_task_setioprio(p, ioprio);
1176 static inline int security_task_getioprio(struct task_struct *p)
1181 static inline int security_task_prlimit(const struct cred *cred,
1182 const struct cred *tcred,
1188 static inline int security_task_setrlimit(struct task_struct *p,
1189 unsigned int resource,
1190 struct rlimit *new_rlim)
1195 static inline int security_task_setscheduler(struct task_struct *p)
1197 return cap_task_setscheduler(p);
1200 static inline int security_task_getscheduler(struct task_struct *p)
1205 static inline int security_task_movememory(struct task_struct *p)
1210 static inline int security_task_kill(struct task_struct *p,
1211 struct kernel_siginfo *info, int sig,
1212 const struct cred *cred)
1217 static inline int security_task_prctl(int option, unsigned long arg2,
1222 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1225 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1228 static inline int security_create_user_ns(const struct cred *cred)
1233 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1239 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1244 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1249 static inline void security_msg_msg_free(struct msg_msg *msg)
1252 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1257 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1260 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1266 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1271 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1272 struct msg_msg *msg, int msqflg)
1277 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1278 struct msg_msg *msg,
1279 struct task_struct *target,
1280 long type, int mode)
1285 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1290 static inline void security_shm_free(struct kern_ipc_perm *shp)
1293 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1299 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1304 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1305 char __user *shmaddr, int shmflg)
1310 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1315 static inline void security_sem_free(struct kern_ipc_perm *sma)
1318 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1323 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1328 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1329 struct sembuf *sops, unsigned nsops,
1335 static inline void security_d_instantiate(struct dentry *dentry,
1336 struct inode *inode)
1339 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1340 const char *name, char **value)
1345 static inline int security_setprocattr(const char *lsm, char *name,
1346 void *value, size_t size)
1351 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1356 static inline int security_ismaclabel(const char *name)
1361 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1366 static inline int security_secctx_to_secid(const char *secdata,
1373 static inline void security_release_secctx(char *secdata, u32 seclen)
1377 static inline void security_inode_invalidate_secctx(struct inode *inode)
1381 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1385 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1389 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1393 static inline int security_locked_down(enum lockdown_reason what)
1397 #endif /* CONFIG_SECURITY */
1399 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1400 int security_post_notification(const struct cred *w_cred,
1401 const struct cred *cred,
1402 struct watch_notification *n);
1404 static inline int security_post_notification(const struct cred *w_cred,
1405 const struct cred *cred,
1406 struct watch_notification *n)
1412 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1413 int security_watch_key(struct key *key);
1415 static inline int security_watch_key(struct key *key)
1421 #ifdef CONFIG_SECURITY_NETWORK
1423 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1424 int security_unix_may_send(struct socket *sock, struct socket *other);
1425 int security_socket_create(int family, int type, int protocol, int kern);
1426 int security_socket_post_create(struct socket *sock, int family,
1427 int type, int protocol, int kern);
1428 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1429 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1430 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1431 int security_socket_listen(struct socket *sock, int backlog);
1432 int security_socket_accept(struct socket *sock, struct socket *newsock);
1433 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1434 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1435 int size, int flags);
1436 int security_socket_getsockname(struct socket *sock);
1437 int security_socket_getpeername(struct socket *sock);
1438 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1439 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1440 int security_socket_shutdown(struct socket *sock, int how);
1441 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1442 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1443 sockptr_t optlen, unsigned int len);
1444 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1445 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1446 void security_sk_free(struct sock *sk);
1447 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1448 void security_sk_classify_flow(const struct sock *sk,
1449 struct flowi_common *flic);
1450 void security_req_classify_flow(const struct request_sock *req,
1451 struct flowi_common *flic);
1452 void security_sock_graft(struct sock*sk, struct socket *parent);
1453 int security_inet_conn_request(const struct sock *sk,
1454 struct sk_buff *skb, struct request_sock *req);
1455 void security_inet_csk_clone(struct sock *newsk,
1456 const struct request_sock *req);
1457 void security_inet_conn_established(struct sock *sk,
1458 struct sk_buff *skb);
1459 int security_secmark_relabel_packet(u32 secid);
1460 void security_secmark_refcount_inc(void);
1461 void security_secmark_refcount_dec(void);
1462 int security_tun_dev_alloc_security(void **security);
1463 void security_tun_dev_free_security(void *security);
1464 int security_tun_dev_create(void);
1465 int security_tun_dev_attach_queue(void *security);
1466 int security_tun_dev_attach(struct sock *sk, void *security);
1467 int security_tun_dev_open(void *security);
1468 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1469 int security_sctp_bind_connect(struct sock *sk, int optname,
1470 struct sockaddr *address, int addrlen);
1471 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1472 struct sock *newsk);
1473 int security_sctp_assoc_established(struct sctp_association *asoc,
1474 struct sk_buff *skb);
1475 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1477 #else /* CONFIG_SECURITY_NETWORK */
1478 static inline int security_unix_stream_connect(struct sock *sock,
1485 static inline int security_unix_may_send(struct socket *sock,
1486 struct socket *other)
1491 static inline int security_socket_create(int family, int type,
1492 int protocol, int kern)
1497 static inline int security_socket_post_create(struct socket *sock,
1500 int protocol, int kern)
1505 static inline int security_socket_socketpair(struct socket *socka,
1506 struct socket *sockb)
1511 static inline int security_socket_bind(struct socket *sock,
1512 struct sockaddr *address,
1518 static inline int security_socket_connect(struct socket *sock,
1519 struct sockaddr *address,
1525 static inline int security_socket_listen(struct socket *sock, int backlog)
1530 static inline int security_socket_accept(struct socket *sock,
1531 struct socket *newsock)
1536 static inline int security_socket_sendmsg(struct socket *sock,
1537 struct msghdr *msg, int size)
1542 static inline int security_socket_recvmsg(struct socket *sock,
1543 struct msghdr *msg, int size,
1549 static inline int security_socket_getsockname(struct socket *sock)
1554 static inline int security_socket_getpeername(struct socket *sock)
1559 static inline int security_socket_getsockopt(struct socket *sock,
1560 int level, int optname)
1565 static inline int security_socket_setsockopt(struct socket *sock,
1566 int level, int optname)
1571 static inline int security_socket_shutdown(struct socket *sock, int how)
1575 static inline int security_sock_rcv_skb(struct sock *sk,
1576 struct sk_buff *skb)
1581 static inline int security_socket_getpeersec_stream(struct socket *sock,
1586 return -ENOPROTOOPT;
1589 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1591 return -ENOPROTOOPT;
1594 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1599 static inline void security_sk_free(struct sock *sk)
1603 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1607 static inline void security_sk_classify_flow(const struct sock *sk,
1608 struct flowi_common *flic)
1612 static inline void security_req_classify_flow(const struct request_sock *req,
1613 struct flowi_common *flic)
1617 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1621 static inline int security_inet_conn_request(const struct sock *sk,
1622 struct sk_buff *skb, struct request_sock *req)
1627 static inline void security_inet_csk_clone(struct sock *newsk,
1628 const struct request_sock *req)
1632 static inline void security_inet_conn_established(struct sock *sk,
1633 struct sk_buff *skb)
1637 static inline int security_secmark_relabel_packet(u32 secid)
1642 static inline void security_secmark_refcount_inc(void)
1646 static inline void security_secmark_refcount_dec(void)
1650 static inline int security_tun_dev_alloc_security(void **security)
1655 static inline void security_tun_dev_free_security(void *security)
1659 static inline int security_tun_dev_create(void)
1664 static inline int security_tun_dev_attach_queue(void *security)
1669 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1674 static inline int security_tun_dev_open(void *security)
1679 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1680 struct sk_buff *skb)
1685 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1686 struct sockaddr *address,
1692 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1698 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1699 struct sk_buff *skb)
1704 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1708 #endif /* CONFIG_SECURITY_NETWORK */
1710 #ifdef CONFIG_SECURITY_INFINIBAND
1711 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1712 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1713 int security_ib_alloc_security(void **sec);
1714 void security_ib_free_security(void *sec);
1715 #else /* CONFIG_SECURITY_INFINIBAND */
1716 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1721 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1726 static inline int security_ib_alloc_security(void **sec)
1731 static inline void security_ib_free_security(void *sec)
1734 #endif /* CONFIG_SECURITY_INFINIBAND */
1736 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1738 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1739 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1740 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1741 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1742 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1743 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1744 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1745 struct xfrm_sec_ctx *polsec, u32 secid);
1746 int security_xfrm_state_delete(struct xfrm_state *x);
1747 void security_xfrm_state_free(struct xfrm_state *x);
1748 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1749 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1750 struct xfrm_policy *xp,
1751 const struct flowi_common *flic);
1752 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1753 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1755 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1757 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1758 struct xfrm_user_sec_ctx *sec_ctx,
1764 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1769 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1773 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1778 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1779 struct xfrm_user_sec_ctx *sec_ctx)
1784 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1785 struct xfrm_sec_ctx *polsec, u32 secid)
1790 static inline void security_xfrm_state_free(struct xfrm_state *x)
1794 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1799 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1804 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1805 struct xfrm_policy *xp,
1806 const struct flowi_common *flic)
1811 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1816 static inline void security_skb_classify_flow(struct sk_buff *skb,
1817 struct flowi_common *flic)
1821 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1823 #ifdef CONFIG_SECURITY_PATH
1824 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1825 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1826 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1827 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1829 int security_path_truncate(const struct path *path);
1830 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1831 const char *old_name);
1832 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1833 struct dentry *new_dentry);
1834 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1835 const struct path *new_dir, struct dentry *new_dentry,
1836 unsigned int flags);
1837 int security_path_chmod(const struct path *path, umode_t mode);
1838 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1839 int security_path_chroot(const struct path *path);
1840 #else /* CONFIG_SECURITY_PATH */
1841 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1846 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1852 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1857 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1858 umode_t mode, unsigned int dev)
1863 static inline int security_path_truncate(const struct path *path)
1868 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1869 const char *old_name)
1874 static inline int security_path_link(struct dentry *old_dentry,
1875 const struct path *new_dir,
1876 struct dentry *new_dentry)
1881 static inline int security_path_rename(const struct path *old_dir,
1882 struct dentry *old_dentry,
1883 const struct path *new_dir,
1884 struct dentry *new_dentry,
1890 static inline int security_path_chmod(const struct path *path, umode_t mode)
1895 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1900 static inline int security_path_chroot(const struct path *path)
1904 #endif /* CONFIG_SECURITY_PATH */
1907 #ifdef CONFIG_SECURITY
1909 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1910 void security_key_free(struct key *key);
1911 int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1912 enum key_need_perm need_perm);
1913 int security_key_getsecurity(struct key *key, char **_buffer);
1917 static inline int security_key_alloc(struct key *key,
1918 const struct cred *cred,
1919 unsigned long flags)
1924 static inline void security_key_free(struct key *key)
1928 static inline int security_key_permission(key_ref_t key_ref,
1929 const struct cred *cred,
1930 enum key_need_perm need_perm)
1935 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1942 #endif /* CONFIG_KEYS */
1945 #ifdef CONFIG_SECURITY
1946 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1947 int security_audit_rule_known(struct audit_krule *krule);
1948 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1949 void security_audit_rule_free(void *lsmrule);
1953 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1959 static inline int security_audit_rule_known(struct audit_krule *krule)
1964 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1970 static inline void security_audit_rule_free(void *lsmrule)
1973 #endif /* CONFIG_SECURITY */
1974 #endif /* CONFIG_AUDIT */
1976 #ifdef CONFIG_SECURITYFS
1978 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1979 struct dentry *parent, void *data,
1980 const struct file_operations *fops);
1981 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1982 struct dentry *securityfs_create_symlink(const char *name,
1983 struct dentry *parent,
1985 const struct inode_operations *iops);
1986 extern void securityfs_remove(struct dentry *dentry);
1988 #else /* CONFIG_SECURITYFS */
1990 static inline struct dentry *securityfs_create_dir(const char *name,
1991 struct dentry *parent)
1993 return ERR_PTR(-ENODEV);
1996 static inline struct dentry *securityfs_create_file(const char *name,
1998 struct dentry *parent,
2000 const struct file_operations *fops)
2002 return ERR_PTR(-ENODEV);
2005 static inline struct dentry *securityfs_create_symlink(const char *name,
2006 struct dentry *parent,
2008 const struct inode_operations *iops)
2010 return ERR_PTR(-ENODEV);
2013 static inline void securityfs_remove(struct dentry *dentry)
2018 #ifdef CONFIG_BPF_SYSCALL
2022 struct bpf_prog_aux;
2023 #ifdef CONFIG_SECURITY
2024 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2025 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2026 extern int security_bpf_prog(struct bpf_prog *prog);
2027 extern int security_bpf_map_alloc(struct bpf_map *map);
2028 extern void security_bpf_map_free(struct bpf_map *map);
2029 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
2030 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
2032 static inline int security_bpf(int cmd, union bpf_attr *attr,
2038 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2043 static inline int security_bpf_prog(struct bpf_prog *prog)
2048 static inline int security_bpf_map_alloc(struct bpf_map *map)
2053 static inline void security_bpf_map_free(struct bpf_map *map)
2056 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
2061 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
2063 #endif /* CONFIG_SECURITY */
2064 #endif /* CONFIG_BPF_SYSCALL */
2066 #ifdef CONFIG_PERF_EVENTS
2067 struct perf_event_attr;
2070 #ifdef CONFIG_SECURITY
2071 extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2072 extern int security_perf_event_alloc(struct perf_event *event);
2073 extern void security_perf_event_free(struct perf_event *event);
2074 extern int security_perf_event_read(struct perf_event *event);
2075 extern int security_perf_event_write(struct perf_event *event);
2077 static inline int security_perf_event_open(struct perf_event_attr *attr,
2083 static inline int security_perf_event_alloc(struct perf_event *event)
2088 static inline void security_perf_event_free(struct perf_event *event)
2092 static inline int security_perf_event_read(struct perf_event *event)
2097 static inline int security_perf_event_write(struct perf_event *event)
2101 #endif /* CONFIG_SECURITY */
2102 #endif /* CONFIG_PERF_EVENTS */
2104 #ifdef CONFIG_IO_URING
2105 #ifdef CONFIG_SECURITY
2106 extern int security_uring_override_creds(const struct cred *new);
2107 extern int security_uring_sqpoll(void);
2108 extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2110 static inline int security_uring_override_creds(const struct cred *new)
2114 static inline int security_uring_sqpoll(void)
2118 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2122 #endif /* CONFIG_SECURITY */
2123 #endif /* CONFIG_IO_URING */
2125 #endif /* ! __LINUX_SECURITY_H */