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/key.h>
27 #include <linux/capability.h>
29 #include <linux/slab.h>
30 #include <linux/err.h>
31 #include <linux/string.h>
38 struct kernel_siginfo;
51 struct file_operations;
61 /* Default (no) options for the capable function */
62 #define CAP_OPT_NONE 0x0
63 /* If capable should audit the security request */
64 #define CAP_OPT_NOAUDIT BIT(1)
65 /* If capable is being called by a setid function */
66 #define CAP_OPT_INSETID BIT(2)
68 /* LSM Agnostic defines for fs_context::lsm_flags */
69 #define SECURITY_LSM_NATIVE_LABELS 1
73 struct user_namespace;
80 /* These functions are in security/commoncap.c */
81 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
82 int cap, unsigned int opts);
83 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
84 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
85 extern int cap_ptrace_traceme(struct task_struct *parent);
86 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
87 extern int cap_capset(struct cred *new, const struct cred *old,
88 const kernel_cap_t *effective,
89 const kernel_cap_t *inheritable,
90 const kernel_cap_t *permitted);
91 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
92 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
93 const void *value, size_t size, int flags);
94 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
95 extern int cap_inode_need_killpriv(struct dentry *dentry);
96 extern int cap_inode_killpriv(struct dentry *dentry);
97 extern int cap_inode_getsecurity(struct inode *inode, const char *name,
98 void **buffer, bool alloc);
99 extern int cap_mmap_addr(unsigned long addr);
100 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
101 unsigned long prot, unsigned long flags);
102 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
103 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
104 unsigned long arg4, unsigned long arg5);
105 extern int cap_task_setscheduler(struct task_struct *p);
106 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
107 extern int cap_task_setnice(struct task_struct *p, int nice);
108 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
117 struct xfrm_selector;
120 struct xfrm_user_sec_ctx;
122 struct sctp_endpoint;
125 extern unsigned long mmap_min_addr;
126 extern unsigned long dac_mmap_min_addr;
128 #define mmap_min_addr 0UL
129 #define dac_mmap_min_addr 0UL
133 * Values used in the task_security_ops calls
135 /* setuid or setgid, id0 == uid or gid */
136 #define LSM_SETID_ID 1
138 /* setreuid or setregid, id0 == real, id1 == eff */
139 #define LSM_SETID_RE 2
141 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
142 #define LSM_SETID_RES 4
144 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
145 #define LSM_SETID_FS 8
147 /* Flags for security_task_prlimit(). */
148 #define LSM_PRLIMIT_READ 1
149 #define LSM_PRLIMIT_WRITE 2
151 /* forward declares to avoid warnings */
155 /* bprm->unsafe reasons */
156 #define LSM_UNSAFE_SHARE 1
157 #define LSM_UNSAFE_PTRACE 2
158 #define LSM_UNSAFE_NO_NEW_PRIVS 4
161 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
162 void __user *buffer, size_t *lenp, loff_t *ppos);
165 /* security_inode_init_security callback function to write xattrs */
166 typedef int (*initxattrs) (struct inode *inode,
167 const struct xattr *xattr_array, void *fs_data);
170 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
171 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
172 #define __data_id_stringify(dummy, str) #str,
174 enum kernel_load_data_id {
175 __kernel_read_file_id(__data_id_enumify)
178 static const char * const kernel_load_data_str[] = {
179 __kernel_read_file_id(__data_id_stringify)
182 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
184 if ((unsigned)id >= LOADING_MAX_ID)
185 return kernel_load_data_str[LOADING_UNKNOWN];
187 return kernel_load_data_str[id];
190 #ifdef CONFIG_SECURITY
192 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
193 int register_blocking_lsm_notifier(struct notifier_block *nb);
194 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
197 extern int security_init(void);
199 /* Security operations */
200 int security_binder_set_context_mgr(struct task_struct *mgr);
201 int security_binder_transaction(struct task_struct *from,
202 struct task_struct *to);
203 int security_binder_transfer_binder(struct task_struct *from,
204 struct task_struct *to);
205 int security_binder_transfer_file(struct task_struct *from,
206 struct task_struct *to, struct file *file);
207 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
208 int security_ptrace_traceme(struct task_struct *parent);
209 int security_capget(struct task_struct *target,
210 kernel_cap_t *effective,
211 kernel_cap_t *inheritable,
212 kernel_cap_t *permitted);
213 int security_capset(struct cred *new, const struct cred *old,
214 const kernel_cap_t *effective,
215 const kernel_cap_t *inheritable,
216 const kernel_cap_t *permitted);
217 int security_capable(const struct cred *cred,
218 struct user_namespace *ns,
221 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
222 int security_quota_on(struct dentry *dentry);
223 int security_syslog(int type);
224 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
225 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
226 int security_bprm_set_creds(struct linux_binprm *bprm);
227 int security_bprm_check(struct linux_binprm *bprm);
228 void security_bprm_committing_creds(struct linux_binprm *bprm);
229 void security_bprm_committed_creds(struct linux_binprm *bprm);
230 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
231 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
232 int security_sb_alloc(struct super_block *sb);
233 void security_sb_free(struct super_block *sb);
234 void security_free_mnt_opts(void **mnt_opts);
235 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
236 int security_sb_remount(struct super_block *sb, void *mnt_opts);
237 int security_sb_kern_mount(struct super_block *sb);
238 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
239 int security_sb_statfs(struct dentry *dentry);
240 int security_sb_mount(const char *dev_name, const struct path *path,
241 const char *type, unsigned long flags, void *data);
242 int security_sb_umount(struct vfsmount *mnt, int flags);
243 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
244 int security_sb_set_mnt_opts(struct super_block *sb,
246 unsigned long kern_flags,
247 unsigned long *set_kern_flags);
248 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
249 struct super_block *newsb,
250 unsigned long kern_flags,
251 unsigned long *set_kern_flags);
252 int security_add_mnt_opt(const char *option, const char *val,
253 int len, void **mnt_opts);
254 int security_move_mount(const struct path *from_path, const struct path *to_path);
255 int security_dentry_init_security(struct dentry *dentry, int mode,
256 const struct qstr *name, void **ctx,
258 int security_dentry_create_files_as(struct dentry *dentry, int mode,
260 const struct cred *old,
262 int security_path_notify(const struct path *path, u64 mask,
263 unsigned int obj_type);
264 int security_inode_alloc(struct inode *inode);
265 void security_inode_free(struct inode *inode);
266 int security_inode_init_security(struct inode *inode, struct inode *dir,
267 const struct qstr *qstr,
268 initxattrs initxattrs, void *fs_data);
269 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
270 const struct qstr *qstr, const char **name,
271 void **value, size_t *len);
272 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
273 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
274 struct dentry *new_dentry);
275 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
276 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
277 const char *old_name);
278 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
279 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
280 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
281 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
282 struct inode *new_dir, struct dentry *new_dentry,
284 int security_inode_readlink(struct dentry *dentry);
285 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
287 int security_inode_permission(struct inode *inode, int mask);
288 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
289 int security_inode_getattr(const struct path *path);
290 int security_inode_setxattr(struct dentry *dentry, const char *name,
291 const void *value, size_t size, int flags);
292 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
293 const void *value, size_t size, int flags);
294 int security_inode_getxattr(struct dentry *dentry, const char *name);
295 int security_inode_listxattr(struct dentry *dentry);
296 int security_inode_removexattr(struct dentry *dentry, const char *name);
297 int security_inode_need_killpriv(struct dentry *dentry);
298 int security_inode_killpriv(struct dentry *dentry);
299 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
300 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
301 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
302 void security_inode_getsecid(struct inode *inode, u32 *secid);
303 int security_inode_copy_up(struct dentry *src, struct cred **new);
304 int security_inode_copy_up_xattr(const char *name);
305 int security_kernfs_init_security(struct kernfs_node *kn_dir,
306 struct kernfs_node *kn);
307 int security_file_permission(struct file *file, int mask);
308 int security_file_alloc(struct file *file);
309 void security_file_free(struct file *file);
310 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
311 int security_mmap_file(struct file *file, unsigned long prot,
312 unsigned long flags);
313 int security_mmap_addr(unsigned long addr);
314 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
316 int security_file_lock(struct file *file, unsigned int cmd);
317 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
318 void security_file_set_fowner(struct file *file);
319 int security_file_send_sigiotask(struct task_struct *tsk,
320 struct fown_struct *fown, int sig);
321 int security_file_receive(struct file *file);
322 int security_file_open(struct file *file);
323 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
324 void security_task_free(struct task_struct *task);
325 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
326 void security_cred_free(struct cred *cred);
327 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
328 void security_transfer_creds(struct cred *new, const struct cred *old);
329 void security_cred_getsecid(const struct cred *c, u32 *secid);
330 int security_kernel_act_as(struct cred *new, u32 secid);
331 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
332 int security_kernel_module_request(char *kmod_name);
333 int security_kernel_load_data(enum kernel_load_data_id id);
334 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
335 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
336 enum kernel_read_file_id id);
337 int security_task_fix_setuid(struct cred *new, const struct cred *old,
339 int security_task_setpgid(struct task_struct *p, pid_t pgid);
340 int security_task_getpgid(struct task_struct *p);
341 int security_task_getsid(struct task_struct *p);
342 void security_task_getsecid(struct task_struct *p, u32 *secid);
343 int security_task_setnice(struct task_struct *p, int nice);
344 int security_task_setioprio(struct task_struct *p, int ioprio);
345 int security_task_getioprio(struct task_struct *p);
346 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
348 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
349 struct rlimit *new_rlim);
350 int security_task_setscheduler(struct task_struct *p);
351 int security_task_getscheduler(struct task_struct *p);
352 int security_task_movememory(struct task_struct *p);
353 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
354 int sig, const struct cred *cred);
355 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
356 unsigned long arg4, unsigned long arg5);
357 void security_task_to_inode(struct task_struct *p, struct inode *inode);
358 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
359 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
360 int security_msg_msg_alloc(struct msg_msg *msg);
361 void security_msg_msg_free(struct msg_msg *msg);
362 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
363 void security_msg_queue_free(struct kern_ipc_perm *msq);
364 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
365 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
366 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
367 struct msg_msg *msg, int msqflg);
368 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
369 struct task_struct *target, long type, int mode);
370 int security_shm_alloc(struct kern_ipc_perm *shp);
371 void security_shm_free(struct kern_ipc_perm *shp);
372 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
373 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
374 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
375 int security_sem_alloc(struct kern_ipc_perm *sma);
376 void security_sem_free(struct kern_ipc_perm *sma);
377 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
378 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
379 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
380 unsigned nsops, int alter);
381 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
382 int security_getprocattr(struct task_struct *p, const char *lsm, char *name,
384 int security_setprocattr(const char *lsm, const char *name, void *value,
386 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
387 int security_ismaclabel(const char *name);
388 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
389 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
390 void security_release_secctx(char *secdata, u32 seclen);
391 void security_inode_invalidate_secctx(struct inode *inode);
392 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
393 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
394 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
395 #else /* CONFIG_SECURITY */
397 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
402 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
407 static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
412 static inline void security_free_mnt_opts(void **mnt_opts)
417 * This is the default capabilities functionality. Most of these functions
418 * are just stubbed out, but a few must call the proper capable code.
421 static inline int security_init(void)
426 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
431 static inline int security_binder_transaction(struct task_struct *from,
432 struct task_struct *to)
437 static inline int security_binder_transfer_binder(struct task_struct *from,
438 struct task_struct *to)
443 static inline int security_binder_transfer_file(struct task_struct *from,
444 struct task_struct *to,
450 static inline int security_ptrace_access_check(struct task_struct *child,
453 return cap_ptrace_access_check(child, mode);
456 static inline int security_ptrace_traceme(struct task_struct *parent)
458 return cap_ptrace_traceme(parent);
461 static inline int security_capget(struct task_struct *target,
462 kernel_cap_t *effective,
463 kernel_cap_t *inheritable,
464 kernel_cap_t *permitted)
466 return cap_capget(target, effective, inheritable, permitted);
469 static inline int security_capset(struct cred *new,
470 const struct cred *old,
471 const kernel_cap_t *effective,
472 const kernel_cap_t *inheritable,
473 const kernel_cap_t *permitted)
475 return cap_capset(new, old, effective, inheritable, permitted);
478 static inline int security_capable(const struct cred *cred,
479 struct user_namespace *ns,
483 return cap_capable(cred, ns, cap, opts);
486 static inline int security_quotactl(int cmds, int type, int id,
487 struct super_block *sb)
492 static inline int security_quota_on(struct dentry *dentry)
497 static inline int security_syslog(int type)
502 static inline int security_settime64(const struct timespec64 *ts,
503 const struct timezone *tz)
505 return cap_settime(ts, tz);
508 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
510 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
513 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
515 return cap_bprm_set_creds(bprm);
518 static inline int security_bprm_check(struct linux_binprm *bprm)
523 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
527 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
531 static inline int security_fs_context_dup(struct fs_context *fc,
532 struct fs_context *src_fc)
536 static inline int security_fs_context_parse_param(struct fs_context *fc,
537 struct fs_parameter *param)
542 static inline int security_sb_alloc(struct super_block *sb)
547 static inline void security_sb_free(struct super_block *sb)
550 static inline int security_sb_eat_lsm_opts(char *options,
556 static inline int security_sb_remount(struct super_block *sb,
562 static inline int security_sb_kern_mount(struct super_block *sb)
567 static inline int security_sb_show_options(struct seq_file *m,
568 struct super_block *sb)
573 static inline int security_sb_statfs(struct dentry *dentry)
578 static inline int security_sb_mount(const char *dev_name, const struct path *path,
579 const char *type, unsigned long flags,
585 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
590 static inline int security_sb_pivotroot(const struct path *old_path,
591 const struct path *new_path)
596 static inline int security_sb_set_mnt_opts(struct super_block *sb,
598 unsigned long kern_flags,
599 unsigned long *set_kern_flags)
604 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
605 struct super_block *newsb,
606 unsigned long kern_flags,
607 unsigned long *set_kern_flags)
612 static inline int security_add_mnt_opt(const char *option, const char *val,
613 int len, void **mnt_opts)
618 static inline int security_move_mount(const struct path *from_path,
619 const struct path *to_path)
624 static inline int security_path_notify(const struct path *path, u64 mask,
625 unsigned int obj_type)
630 static inline int security_inode_alloc(struct inode *inode)
635 static inline void security_inode_free(struct inode *inode)
638 static inline int security_dentry_init_security(struct dentry *dentry,
640 const struct qstr *name,
647 static inline int security_dentry_create_files_as(struct dentry *dentry,
648 int mode, struct qstr *name,
649 const struct cred *old,
656 static inline int security_inode_init_security(struct inode *inode,
658 const struct qstr *qstr,
659 const initxattrs xattrs,
665 static inline int security_old_inode_init_security(struct inode *inode,
667 const struct qstr *qstr,
669 void **value, size_t *len)
674 static inline int security_inode_create(struct inode *dir,
675 struct dentry *dentry,
681 static inline int security_inode_link(struct dentry *old_dentry,
683 struct dentry *new_dentry)
688 static inline int security_inode_unlink(struct inode *dir,
689 struct dentry *dentry)
694 static inline int security_inode_symlink(struct inode *dir,
695 struct dentry *dentry,
696 const char *old_name)
701 static inline int security_inode_mkdir(struct inode *dir,
702 struct dentry *dentry,
708 static inline int security_inode_rmdir(struct inode *dir,
709 struct dentry *dentry)
714 static inline int security_inode_mknod(struct inode *dir,
715 struct dentry *dentry,
721 static inline int security_inode_rename(struct inode *old_dir,
722 struct dentry *old_dentry,
723 struct inode *new_dir,
724 struct dentry *new_dentry,
730 static inline int security_inode_readlink(struct dentry *dentry)
735 static inline int security_inode_follow_link(struct dentry *dentry,
742 static inline int security_inode_permission(struct inode *inode, int mask)
747 static inline int security_inode_setattr(struct dentry *dentry,
753 static inline int security_inode_getattr(const struct path *path)
758 static inline int security_inode_setxattr(struct dentry *dentry,
759 const char *name, const void *value, size_t size, int flags)
761 return cap_inode_setxattr(dentry, name, value, size, flags);
764 static inline void security_inode_post_setxattr(struct dentry *dentry,
765 const char *name, const void *value, size_t size, int flags)
768 static inline int security_inode_getxattr(struct dentry *dentry,
774 static inline int security_inode_listxattr(struct dentry *dentry)
779 static inline int security_inode_removexattr(struct dentry *dentry,
782 return cap_inode_removexattr(dentry, name);
785 static inline int security_inode_need_killpriv(struct dentry *dentry)
787 return cap_inode_need_killpriv(dentry);
790 static inline int security_inode_killpriv(struct dentry *dentry)
792 return cap_inode_killpriv(dentry);
795 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
800 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
805 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
810 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
815 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
820 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
821 struct kernfs_node *kn)
826 static inline int security_inode_copy_up_xattr(const char *name)
831 static inline int security_file_permission(struct file *file, int mask)
836 static inline int security_file_alloc(struct file *file)
841 static inline void security_file_free(struct file *file)
844 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
850 static inline int security_mmap_file(struct file *file, unsigned long prot,
856 static inline int security_mmap_addr(unsigned long addr)
858 return cap_mmap_addr(addr);
861 static inline int security_file_mprotect(struct vm_area_struct *vma,
862 unsigned long reqprot,
868 static inline int security_file_lock(struct file *file, unsigned int cmd)
873 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
879 static inline void security_file_set_fowner(struct file *file)
884 static inline int security_file_send_sigiotask(struct task_struct *tsk,
885 struct fown_struct *fown,
891 static inline int security_file_receive(struct file *file)
896 static inline int security_file_open(struct file *file)
901 static inline int security_task_alloc(struct task_struct *task,
902 unsigned long clone_flags)
907 static inline void security_task_free(struct task_struct *task)
910 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
915 static inline void security_cred_free(struct cred *cred)
918 static inline int security_prepare_creds(struct cred *new,
919 const struct cred *old,
925 static inline void security_transfer_creds(struct cred *new,
926 const struct cred *old)
930 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
935 static inline int security_kernel_create_files_as(struct cred *cred,
941 static inline int security_kernel_module_request(char *kmod_name)
946 static inline int security_kernel_load_data(enum kernel_load_data_id id)
951 static inline int security_kernel_read_file(struct file *file,
952 enum kernel_read_file_id id)
957 static inline int security_kernel_post_read_file(struct file *file,
958 char *buf, loff_t size,
959 enum kernel_read_file_id id)
964 static inline int security_task_fix_setuid(struct cred *new,
965 const struct cred *old,
968 return cap_task_fix_setuid(new, old, flags);
971 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
976 static inline int security_task_getpgid(struct task_struct *p)
981 static inline int security_task_getsid(struct task_struct *p)
986 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
991 static inline int security_task_setnice(struct task_struct *p, int nice)
993 return cap_task_setnice(p, nice);
996 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
998 return cap_task_setioprio(p, ioprio);
1001 static inline int security_task_getioprio(struct task_struct *p)
1006 static inline int security_task_prlimit(const struct cred *cred,
1007 const struct cred *tcred,
1013 static inline int security_task_setrlimit(struct task_struct *p,
1014 unsigned int resource,
1015 struct rlimit *new_rlim)
1020 static inline int security_task_setscheduler(struct task_struct *p)
1022 return cap_task_setscheduler(p);
1025 static inline int security_task_getscheduler(struct task_struct *p)
1030 static inline int security_task_movememory(struct task_struct *p)
1035 static inline int security_task_kill(struct task_struct *p,
1036 struct kernel_siginfo *info, int sig,
1037 const struct cred *cred)
1042 static inline int security_task_prctl(int option, unsigned long arg2,
1047 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1050 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1053 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1059 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1064 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1069 static inline void security_msg_msg_free(struct msg_msg *msg)
1072 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1077 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1080 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1086 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1091 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1092 struct msg_msg *msg, int msqflg)
1097 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1098 struct msg_msg *msg,
1099 struct task_struct *target,
1100 long type, int mode)
1105 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1110 static inline void security_shm_free(struct kern_ipc_perm *shp)
1113 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1119 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1124 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1125 char __user *shmaddr, int shmflg)
1130 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1135 static inline void security_sem_free(struct kern_ipc_perm *sma)
1138 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1143 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1148 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1149 struct sembuf *sops, unsigned nsops,
1155 static inline void security_d_instantiate(struct dentry *dentry,
1156 struct inode *inode)
1159 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1160 char *name, char **value)
1165 static inline int security_setprocattr(const char *lsm, char *name,
1166 void *value, size_t size)
1171 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1176 static inline int security_ismaclabel(const char *name)
1181 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1186 static inline int security_secctx_to_secid(const char *secdata,
1193 static inline void security_release_secctx(char *secdata, u32 seclen)
1197 static inline void security_inode_invalidate_secctx(struct inode *inode)
1201 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1205 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1209 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1213 #endif /* CONFIG_SECURITY */
1215 #ifdef CONFIG_SECURITY_NETWORK
1217 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1218 int security_unix_may_send(struct socket *sock, struct socket *other);
1219 int security_socket_create(int family, int type, int protocol, int kern);
1220 int security_socket_post_create(struct socket *sock, int family,
1221 int type, int protocol, int kern);
1222 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1223 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1224 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1225 int security_socket_listen(struct socket *sock, int backlog);
1226 int security_socket_accept(struct socket *sock, struct socket *newsock);
1227 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1228 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1229 int size, int flags);
1230 int security_socket_getsockname(struct socket *sock);
1231 int security_socket_getpeername(struct socket *sock);
1232 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1233 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1234 int security_socket_shutdown(struct socket *sock, int how);
1235 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1236 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1237 int __user *optlen, unsigned len);
1238 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1239 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1240 void security_sk_free(struct sock *sk);
1241 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1242 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1243 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1244 void security_sock_graft(struct sock*sk, struct socket *parent);
1245 int security_inet_conn_request(struct sock *sk,
1246 struct sk_buff *skb, struct request_sock *req);
1247 void security_inet_csk_clone(struct sock *newsk,
1248 const struct request_sock *req);
1249 void security_inet_conn_established(struct sock *sk,
1250 struct sk_buff *skb);
1251 int security_secmark_relabel_packet(u32 secid);
1252 void security_secmark_refcount_inc(void);
1253 void security_secmark_refcount_dec(void);
1254 int security_tun_dev_alloc_security(void **security);
1255 void security_tun_dev_free_security(void *security);
1256 int security_tun_dev_create(void);
1257 int security_tun_dev_attach_queue(void *security);
1258 int security_tun_dev_attach(struct sock *sk, void *security);
1259 int security_tun_dev_open(void *security);
1260 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1261 int security_sctp_bind_connect(struct sock *sk, int optname,
1262 struct sockaddr *address, int addrlen);
1263 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1264 struct sock *newsk);
1266 #else /* CONFIG_SECURITY_NETWORK */
1267 static inline int security_unix_stream_connect(struct sock *sock,
1274 static inline int security_unix_may_send(struct socket *sock,
1275 struct socket *other)
1280 static inline int security_socket_create(int family, int type,
1281 int protocol, int kern)
1286 static inline int security_socket_post_create(struct socket *sock,
1289 int protocol, int kern)
1294 static inline int security_socket_socketpair(struct socket *socka,
1295 struct socket *sockb)
1300 static inline int security_socket_bind(struct socket *sock,
1301 struct sockaddr *address,
1307 static inline int security_socket_connect(struct socket *sock,
1308 struct sockaddr *address,
1314 static inline int security_socket_listen(struct socket *sock, int backlog)
1319 static inline int security_socket_accept(struct socket *sock,
1320 struct socket *newsock)
1325 static inline int security_socket_sendmsg(struct socket *sock,
1326 struct msghdr *msg, int size)
1331 static inline int security_socket_recvmsg(struct socket *sock,
1332 struct msghdr *msg, int size,
1338 static inline int security_socket_getsockname(struct socket *sock)
1343 static inline int security_socket_getpeername(struct socket *sock)
1348 static inline int security_socket_getsockopt(struct socket *sock,
1349 int level, int optname)
1354 static inline int security_socket_setsockopt(struct socket *sock,
1355 int level, int optname)
1360 static inline int security_socket_shutdown(struct socket *sock, int how)
1364 static inline int security_sock_rcv_skb(struct sock *sk,
1365 struct sk_buff *skb)
1370 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1371 int __user *optlen, unsigned len)
1373 return -ENOPROTOOPT;
1376 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1378 return -ENOPROTOOPT;
1381 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1386 static inline void security_sk_free(struct sock *sk)
1390 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1394 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1398 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1402 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1406 static inline int security_inet_conn_request(struct sock *sk,
1407 struct sk_buff *skb, struct request_sock *req)
1412 static inline void security_inet_csk_clone(struct sock *newsk,
1413 const struct request_sock *req)
1417 static inline void security_inet_conn_established(struct sock *sk,
1418 struct sk_buff *skb)
1422 static inline int security_secmark_relabel_packet(u32 secid)
1427 static inline void security_secmark_refcount_inc(void)
1431 static inline void security_secmark_refcount_dec(void)
1435 static inline int security_tun_dev_alloc_security(void **security)
1440 static inline void security_tun_dev_free_security(void *security)
1444 static inline int security_tun_dev_create(void)
1449 static inline int security_tun_dev_attach_queue(void *security)
1454 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1459 static inline int security_tun_dev_open(void *security)
1464 static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1465 struct sk_buff *skb)
1470 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1471 struct sockaddr *address,
1477 static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1482 #endif /* CONFIG_SECURITY_NETWORK */
1484 #ifdef CONFIG_SECURITY_INFINIBAND
1485 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1486 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1487 int security_ib_alloc_security(void **sec);
1488 void security_ib_free_security(void *sec);
1489 #else /* CONFIG_SECURITY_INFINIBAND */
1490 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1495 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1500 static inline int security_ib_alloc_security(void **sec)
1505 static inline void security_ib_free_security(void *sec)
1508 #endif /* CONFIG_SECURITY_INFINIBAND */
1510 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1512 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1513 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1514 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1515 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1516 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1517 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1518 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1519 struct xfrm_sec_ctx *polsec, u32 secid);
1520 int security_xfrm_state_delete(struct xfrm_state *x);
1521 void security_xfrm_state_free(struct xfrm_state *x);
1522 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1523 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1524 struct xfrm_policy *xp,
1525 const struct flowi *fl);
1526 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1527 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1529 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1531 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1532 struct xfrm_user_sec_ctx *sec_ctx,
1538 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1543 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1547 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1552 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1553 struct xfrm_user_sec_ctx *sec_ctx)
1558 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1559 struct xfrm_sec_ctx *polsec, u32 secid)
1564 static inline void security_xfrm_state_free(struct xfrm_state *x)
1568 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1573 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1578 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1579 struct xfrm_policy *xp, const struct flowi *fl)
1584 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1589 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1593 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1595 #ifdef CONFIG_SECURITY_PATH
1596 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1597 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1598 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1599 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1601 int security_path_truncate(const struct path *path);
1602 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1603 const char *old_name);
1604 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1605 struct dentry *new_dentry);
1606 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1607 const struct path *new_dir, struct dentry *new_dentry,
1608 unsigned int flags);
1609 int security_path_chmod(const struct path *path, umode_t mode);
1610 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1611 int security_path_chroot(const struct path *path);
1612 #else /* CONFIG_SECURITY_PATH */
1613 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1618 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1624 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1629 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1630 umode_t mode, unsigned int dev)
1635 static inline int security_path_truncate(const struct path *path)
1640 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1641 const char *old_name)
1646 static inline int security_path_link(struct dentry *old_dentry,
1647 const struct path *new_dir,
1648 struct dentry *new_dentry)
1653 static inline int security_path_rename(const struct path *old_dir,
1654 struct dentry *old_dentry,
1655 const struct path *new_dir,
1656 struct dentry *new_dentry,
1662 static inline int security_path_chmod(const struct path *path, umode_t mode)
1667 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1672 static inline int security_path_chroot(const struct path *path)
1676 #endif /* CONFIG_SECURITY_PATH */
1679 #ifdef CONFIG_SECURITY
1681 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1682 void security_key_free(struct key *key);
1683 int security_key_permission(key_ref_t key_ref,
1684 const struct cred *cred, unsigned perm);
1685 int security_key_getsecurity(struct key *key, char **_buffer);
1689 static inline int security_key_alloc(struct key *key,
1690 const struct cred *cred,
1691 unsigned long flags)
1696 static inline void security_key_free(struct key *key)
1700 static inline int security_key_permission(key_ref_t key_ref,
1701 const struct cred *cred,
1707 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1714 #endif /* CONFIG_KEYS */
1717 #ifdef CONFIG_SECURITY
1718 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1719 int security_audit_rule_known(struct audit_krule *krule);
1720 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1721 void security_audit_rule_free(void *lsmrule);
1725 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1731 static inline int security_audit_rule_known(struct audit_krule *krule)
1736 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1742 static inline void security_audit_rule_free(void *lsmrule)
1745 #endif /* CONFIG_SECURITY */
1746 #endif /* CONFIG_AUDIT */
1748 #ifdef CONFIG_SECURITYFS
1750 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1751 struct dentry *parent, void *data,
1752 const struct file_operations *fops);
1753 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1754 struct dentry *securityfs_create_symlink(const char *name,
1755 struct dentry *parent,
1757 const struct inode_operations *iops);
1758 extern void securityfs_remove(struct dentry *dentry);
1760 #else /* CONFIG_SECURITYFS */
1762 static inline struct dentry *securityfs_create_dir(const char *name,
1763 struct dentry *parent)
1765 return ERR_PTR(-ENODEV);
1768 static inline struct dentry *securityfs_create_file(const char *name,
1770 struct dentry *parent,
1772 const struct file_operations *fops)
1774 return ERR_PTR(-ENODEV);
1777 static inline struct dentry *securityfs_create_symlink(const char *name,
1778 struct dentry *parent,
1780 const struct inode_operations *iops)
1782 return ERR_PTR(-ENODEV);
1785 static inline void securityfs_remove(struct dentry *dentry)
1790 #ifdef CONFIG_BPF_SYSCALL
1794 struct bpf_prog_aux;
1795 #ifdef CONFIG_SECURITY
1796 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1797 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1798 extern int security_bpf_prog(struct bpf_prog *prog);
1799 extern int security_bpf_map_alloc(struct bpf_map *map);
1800 extern void security_bpf_map_free(struct bpf_map *map);
1801 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1802 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1804 static inline int security_bpf(int cmd, union bpf_attr *attr,
1810 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1815 static inline int security_bpf_prog(struct bpf_prog *prog)
1820 static inline int security_bpf_map_alloc(struct bpf_map *map)
1825 static inline void security_bpf_map_free(struct bpf_map *map)
1828 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1833 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1835 #endif /* CONFIG_SECURITY */
1836 #endif /* CONFIG_BPF_SYSCALL */
1838 #endif /* ! __LINUX_SECURITY_H */