]>
git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - include/linux/security.h
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>
52 struct file_operations
;
60 /* If capable should audit the security request */
61 #define SECURITY_CAP_NOAUDIT 0
62 #define SECURITY_CAP_AUDIT 1
64 /* LSM Agnostic defines for sb_set_mnt_opts */
65 #define SECURITY_LSM_NATIVE_LABELS 1
69 struct user_namespace
;
76 /* These functions are in security/commoncap.c */
77 extern int cap_capable(const struct cred
*cred
, struct user_namespace
*ns
,
79 extern int cap_settime(const struct timespec64
*ts
, const struct timezone
*tz
);
80 extern int cap_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
81 extern int cap_ptrace_traceme(struct task_struct
*parent
);
82 extern int cap_capget(struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
83 extern int cap_capset(struct cred
*new, const struct cred
*old
,
84 const kernel_cap_t
*effective
,
85 const kernel_cap_t
*inheritable
,
86 const kernel_cap_t
*permitted
);
87 extern int cap_bprm_set_creds(struct linux_binprm
*bprm
);
88 extern int cap_inode_setxattr(struct dentry
*dentry
, const char *name
,
89 const void *value
, size_t size
, int flags
);
90 extern int cap_inode_removexattr(struct dentry
*dentry
, const char *name
);
91 extern int cap_inode_need_killpriv(struct dentry
*dentry
);
92 extern int cap_inode_killpriv(struct dentry
*dentry
);
93 extern int cap_mmap_addr(unsigned long addr
);
94 extern int cap_mmap_file(struct file
*file
, unsigned long reqprot
,
95 unsigned long prot
, unsigned long flags
);
96 extern int cap_task_fix_setuid(struct cred
*new, const struct cred
*old
, int flags
);
97 extern int cap_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
98 unsigned long arg4
, unsigned long arg5
);
99 extern int cap_task_setscheduler(struct task_struct
*p
);
100 extern int cap_task_setioprio(struct task_struct
*p
, int ioprio
);
101 extern int cap_task_setnice(struct task_struct
*p
, int nice
);
102 extern int cap_vm_enough_memory(struct mm_struct
*mm
, long pages
);
111 struct xfrm_selector
;
114 struct xfrm_user_sec_ctx
;
118 extern unsigned long mmap_min_addr
;
119 extern unsigned long dac_mmap_min_addr
;
121 #define mmap_min_addr 0UL
122 #define dac_mmap_min_addr 0UL
126 * Values used in the task_security_ops calls
128 /* setuid or setgid, id0 == uid or gid */
129 #define LSM_SETID_ID 1
131 /* setreuid or setregid, id0 == real, id1 == eff */
132 #define LSM_SETID_RE 2
134 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
135 #define LSM_SETID_RES 4
137 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
138 #define LSM_SETID_FS 8
140 /* Flags for security_task_prlimit(). */
141 #define LSM_PRLIMIT_READ 1
142 #define LSM_PRLIMIT_WRITE 2
144 /* forward declares to avoid warnings */
148 /* bprm->unsafe reasons */
149 #define LSM_UNSAFE_SHARE 1
150 #define LSM_UNSAFE_PTRACE 2
151 #define LSM_UNSAFE_NO_NEW_PRIVS 4
154 extern int mmap_min_addr_handler(struct ctl_table
*table
, int write
,
155 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
);
158 /* security_inode_init_security callback function to write xattrs */
159 typedef int (*initxattrs
) (struct inode
*inode
,
160 const struct xattr
*xattr_array
, void *fs_data
);
162 #ifdef CONFIG_SECURITY
164 struct security_mnt_opts
{
170 int call_lsm_notifier(enum lsm_event event
, void *data
);
171 int register_lsm_notifier(struct notifier_block
*nb
);
172 int unregister_lsm_notifier(struct notifier_block
*nb
);
174 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
176 opts
->mnt_opts
= NULL
;
177 opts
->mnt_opts_flags
= NULL
;
178 opts
->num_mnt_opts
= 0;
181 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
185 for (i
= 0; i
< opts
->num_mnt_opts
; i
++)
186 kfree(opts
->mnt_opts
[i
]);
187 kfree(opts
->mnt_opts
);
188 opts
->mnt_opts
= NULL
;
189 kfree(opts
->mnt_opts_flags
);
190 opts
->mnt_opts_flags
= NULL
;
191 opts
->num_mnt_opts
= 0;
195 extern int security_init(void);
197 /* Security operations */
198 int security_binder_set_context_mgr(struct task_struct
*mgr
);
199 int security_binder_transaction(struct task_struct
*from
,
200 struct task_struct
*to
);
201 int security_binder_transfer_binder(struct task_struct
*from
,
202 struct task_struct
*to
);
203 int security_binder_transfer_file(struct task_struct
*from
,
204 struct task_struct
*to
, struct file
*file
);
205 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
206 int security_ptrace_traceme(struct task_struct
*parent
);
207 int security_capget(struct task_struct
*target
,
208 kernel_cap_t
*effective
,
209 kernel_cap_t
*inheritable
,
210 kernel_cap_t
*permitted
);
211 int security_capset(struct cred
*new, const struct cred
*old
,
212 const kernel_cap_t
*effective
,
213 const kernel_cap_t
*inheritable
,
214 const kernel_cap_t
*permitted
);
215 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
217 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
219 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
220 int security_quota_on(struct dentry
*dentry
);
221 int security_syslog(int type
);
222 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
);
223 static inline int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
225 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
227 return security_settime64(&ts64
, tz
);
229 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
230 int security_bprm_set_creds(struct linux_binprm
*bprm
);
231 int security_bprm_check(struct linux_binprm
*bprm
);
232 void security_bprm_committing_creds(struct linux_binprm
*bprm
);
233 void security_bprm_committed_creds(struct linux_binprm
*bprm
);
234 int security_sb_alloc(struct super_block
*sb
);
235 void security_sb_free(struct super_block
*sb
);
236 int security_sb_copy_data(char *orig
, char *copy
);
237 int security_sb_remount(struct super_block
*sb
, void *data
);
238 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
);
239 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
);
240 int security_sb_statfs(struct dentry
*dentry
);
241 int security_sb_mount(const char *dev_name
, const struct path
*path
,
242 const char *type
, unsigned long flags
, void *data
);
243 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
244 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
);
245 int security_sb_set_mnt_opts(struct super_block
*sb
,
246 struct security_mnt_opts
*opts
,
247 unsigned long kern_flags
,
248 unsigned long *set_kern_flags
);
249 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
250 struct super_block
*newsb
,
251 unsigned long kern_flags
,
252 unsigned long *set_kern_flags
);
253 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
254 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
255 const struct qstr
*name
, void **ctx
,
257 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
259 const struct cred
*old
,
262 int security_inode_alloc(struct inode
*inode
);
263 void security_inode_free(struct inode
*inode
);
264 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
265 const struct qstr
*qstr
,
266 initxattrs initxattrs
, void *fs_data
);
267 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
268 const struct qstr
*qstr
, const char **name
,
269 void **value
, size_t *len
);
270 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
271 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
272 struct dentry
*new_dentry
);
273 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
274 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
275 const char *old_name
);
276 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
277 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
278 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
);
279 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
280 struct inode
*new_dir
, struct dentry
*new_dentry
,
282 int security_inode_readlink(struct dentry
*dentry
);
283 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
285 int security_inode_permission(struct inode
*inode
, int mask
);
286 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
287 int security_inode_getattr(const struct path
*path
);
288 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
289 const void *value
, size_t size
, int flags
);
290 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
291 const void *value
, size_t size
, int flags
);
292 int security_inode_getxattr(struct dentry
*dentry
, const char *name
);
293 int security_inode_listxattr(struct dentry
*dentry
);
294 int security_inode_removexattr(struct dentry
*dentry
, const char *name
);
295 int security_inode_need_killpriv(struct dentry
*dentry
);
296 int security_inode_killpriv(struct dentry
*dentry
);
297 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
298 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
299 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
300 void security_inode_getsecid(struct inode
*inode
, u32
*secid
);
301 int security_inode_copy_up(struct dentry
*src
, struct cred
**new);
302 int security_inode_copy_up_xattr(const char *name
);
303 int security_file_permission(struct file
*file
, int mask
);
304 int security_file_alloc(struct file
*file
);
305 void security_file_free(struct file
*file
);
306 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
307 int security_mmap_file(struct file
*file
, unsigned long prot
,
308 unsigned long flags
);
309 int security_mmap_addr(unsigned long addr
);
310 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
312 int security_file_lock(struct file
*file
, unsigned int cmd
);
313 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
314 void security_file_set_fowner(struct file
*file
);
315 int security_file_send_sigiotask(struct task_struct
*tsk
,
316 struct fown_struct
*fown
, int sig
);
317 int security_file_receive(struct file
*file
);
318 int security_file_open(struct file
*file
, const struct cred
*cred
);
319 int security_task_create(unsigned long clone_flags
);
320 int security_task_alloc(struct task_struct
*task
, unsigned long clone_flags
);
321 void security_task_free(struct task_struct
*task
);
322 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
);
323 void security_cred_free(struct cred
*cred
);
324 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
);
325 void security_transfer_creds(struct cred
*new, const struct cred
*old
);
326 int security_kernel_act_as(struct cred
*new, u32 secid
);
327 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
);
328 int security_kernel_module_request(char *kmod_name
);
329 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
);
330 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
331 enum kernel_read_file_id id
);
332 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
334 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
335 int security_task_getpgid(struct task_struct
*p
);
336 int security_task_getsid(struct task_struct
*p
);
337 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
338 int security_task_setnice(struct task_struct
*p
, int nice
);
339 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
340 int security_task_getioprio(struct task_struct
*p
);
341 int security_task_prlimit(const struct cred
*cred
, const struct cred
*tcred
,
343 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
344 struct rlimit
*new_rlim
);
345 int security_task_setscheduler(struct task_struct
*p
);
346 int security_task_getscheduler(struct task_struct
*p
);
347 int security_task_movememory(struct task_struct
*p
);
348 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
350 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
351 unsigned long arg4
, unsigned long arg5
);
352 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
353 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
354 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
355 int security_msg_msg_alloc(struct msg_msg
*msg
);
356 void security_msg_msg_free(struct msg_msg
*msg
);
357 int security_msg_queue_alloc(struct msg_queue
*msq
);
358 void security_msg_queue_free(struct msg_queue
*msq
);
359 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
360 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
361 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
362 struct msg_msg
*msg
, int msqflg
);
363 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
364 struct task_struct
*target
, long type
, int mode
);
365 int security_shm_alloc(struct shmid_kernel
*shp
);
366 void security_shm_free(struct shmid_kernel
*shp
);
367 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
368 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
369 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
370 int security_sem_alloc(struct sem_array
*sma
);
371 void security_sem_free(struct sem_array
*sma
);
372 int security_sem_associate(struct sem_array
*sma
, int semflg
);
373 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
374 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
375 unsigned nsops
, int alter
);
376 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
);
377 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
378 int security_setprocattr(const char *name
, void *value
, size_t size
);
379 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
380 int security_ismaclabel(const char *name
);
381 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
382 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
);
383 void security_release_secctx(char *secdata
, u32 seclen
);
385 void security_inode_invalidate_secctx(struct inode
*inode
);
386 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
387 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
388 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
389 #else /* CONFIG_SECURITY */
390 struct security_mnt_opts
{
393 static inline int call_lsm_notifier(enum lsm_event event
, void *data
)
398 static inline int register_lsm_notifier(struct notifier_block
*nb
)
403 static inline int unregister_lsm_notifier(struct notifier_block
*nb
)
408 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
412 static inline void security_free_mnt_opts(struct security_mnt_opts
*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
, int cap
)
481 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
484 static inline int security_capable_noaudit(const struct cred
*cred
,
485 struct user_namespace
*ns
, int cap
) {
486 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
489 static inline int security_quotactl(int cmds
, int type
, int id
,
490 struct super_block
*sb
)
495 static inline int security_quota_on(struct dentry
*dentry
)
500 static inline int security_syslog(int type
)
505 static inline int security_settime64(const struct timespec64
*ts
,
506 const struct timezone
*tz
)
508 return cap_settime(ts
, tz
);
511 static inline int security_settime(const struct timespec
*ts
,
512 const struct timezone
*tz
)
514 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
516 return cap_settime(&ts64
, tz
);
519 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
521 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
524 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
526 return cap_bprm_set_creds(bprm
);
529 static inline int security_bprm_check(struct linux_binprm
*bprm
)
534 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
538 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
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_copy_data(char *orig
, char *copy
)
555 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
560 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
565 static inline int security_sb_show_options(struct seq_file
*m
,
566 struct super_block
*sb
)
571 static inline int security_sb_statfs(struct dentry
*dentry
)
576 static inline int security_sb_mount(const char *dev_name
, const struct path
*path
,
577 const char *type
, unsigned long flags
,
583 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
588 static inline int security_sb_pivotroot(const struct path
*old_path
,
589 const struct path
*new_path
)
594 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
595 struct security_mnt_opts
*opts
,
596 unsigned long kern_flags
,
597 unsigned long *set_kern_flags
)
602 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
603 struct super_block
*newsb
,
604 unsigned long kern_flags
,
605 unsigned long *set_kern_flags
)
610 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
615 static inline int security_inode_alloc(struct inode
*inode
)
620 static inline void security_inode_free(struct inode
*inode
)
623 static inline int security_dentry_init_security(struct dentry
*dentry
,
625 const struct qstr
*name
,
632 static inline int security_dentry_create_files_as(struct dentry
*dentry
,
633 int mode
, struct qstr
*name
,
634 const struct cred
*old
,
641 static inline int security_inode_init_security(struct inode
*inode
,
643 const struct qstr
*qstr
,
644 const initxattrs xattrs
,
650 static inline int security_old_inode_init_security(struct inode
*inode
,
652 const struct qstr
*qstr
,
654 void **value
, size_t *len
)
659 static inline int security_inode_create(struct inode
*dir
,
660 struct dentry
*dentry
,
666 static inline int security_inode_link(struct dentry
*old_dentry
,
668 struct dentry
*new_dentry
)
673 static inline int security_inode_unlink(struct inode
*dir
,
674 struct dentry
*dentry
)
679 static inline int security_inode_symlink(struct inode
*dir
,
680 struct dentry
*dentry
,
681 const char *old_name
)
686 static inline int security_inode_mkdir(struct inode
*dir
,
687 struct dentry
*dentry
,
693 static inline int security_inode_rmdir(struct inode
*dir
,
694 struct dentry
*dentry
)
699 static inline int security_inode_mknod(struct inode
*dir
,
700 struct dentry
*dentry
,
706 static inline int security_inode_rename(struct inode
*old_dir
,
707 struct dentry
*old_dentry
,
708 struct inode
*new_dir
,
709 struct dentry
*new_dentry
,
715 static inline int security_inode_readlink(struct dentry
*dentry
)
720 static inline int security_inode_follow_link(struct dentry
*dentry
,
727 static inline int security_inode_permission(struct inode
*inode
, int mask
)
732 static inline int security_inode_setattr(struct dentry
*dentry
,
738 static inline int security_inode_getattr(const struct path
*path
)
743 static inline int security_inode_setxattr(struct dentry
*dentry
,
744 const char *name
, const void *value
, size_t size
, int flags
)
746 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
749 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
750 const char *name
, const void *value
, size_t size
, int flags
)
753 static inline int security_inode_getxattr(struct dentry
*dentry
,
759 static inline int security_inode_listxattr(struct dentry
*dentry
)
764 static inline int security_inode_removexattr(struct dentry
*dentry
,
767 return cap_inode_removexattr(dentry
, name
);
770 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
772 return cap_inode_need_killpriv(dentry
);
775 static inline int security_inode_killpriv(struct dentry
*dentry
)
777 return cap_inode_killpriv(dentry
);
780 static inline int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
785 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
790 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
795 static inline void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
800 static inline int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
805 static inline int security_inode_copy_up_xattr(const char *name
)
810 static inline int security_file_permission(struct file
*file
, int mask
)
815 static inline int security_file_alloc(struct file
*file
)
820 static inline void security_file_free(struct file
*file
)
823 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
829 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
835 static inline int security_mmap_addr(unsigned long addr
)
837 return cap_mmap_addr(addr
);
840 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
841 unsigned long reqprot
,
847 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
852 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
858 static inline void security_file_set_fowner(struct file
*file
)
863 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
864 struct fown_struct
*fown
,
870 static inline int security_file_receive(struct file
*file
)
875 static inline int security_file_open(struct file
*file
,
876 const struct cred
*cred
)
881 static inline int security_task_create(unsigned long clone_flags
)
886 static inline int security_task_alloc(struct task_struct
*task
,
887 unsigned long clone_flags
)
892 static inline void security_task_free(struct task_struct
*task
)
895 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
900 static inline void security_cred_free(struct cred
*cred
)
903 static inline int security_prepare_creds(struct cred
*new,
904 const struct cred
*old
,
910 static inline void security_transfer_creds(struct cred
*new,
911 const struct cred
*old
)
915 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
920 static inline int security_kernel_create_files_as(struct cred
*cred
,
926 static inline int security_kernel_module_request(char *kmod_name
)
931 static inline int security_kernel_read_file(struct file
*file
,
932 enum kernel_read_file_id id
)
937 static inline int security_kernel_post_read_file(struct file
*file
,
938 char *buf
, loff_t size
,
939 enum kernel_read_file_id id
)
944 static inline int security_task_fix_setuid(struct cred
*new,
945 const struct cred
*old
,
948 return cap_task_fix_setuid(new, old
, flags
);
951 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
956 static inline int security_task_getpgid(struct task_struct
*p
)
961 static inline int security_task_getsid(struct task_struct
*p
)
966 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
971 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
973 return cap_task_setnice(p
, nice
);
976 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
978 return cap_task_setioprio(p
, ioprio
);
981 static inline int security_task_getioprio(struct task_struct
*p
)
986 static inline int security_task_prlimit(const struct cred
*cred
,
987 const struct cred
*tcred
,
993 static inline int security_task_setrlimit(struct task_struct
*p
,
994 unsigned int resource
,
995 struct rlimit
*new_rlim
)
1000 static inline int security_task_setscheduler(struct task_struct
*p
)
1002 return cap_task_setscheduler(p
);
1005 static inline int security_task_getscheduler(struct task_struct
*p
)
1010 static inline int security_task_movememory(struct task_struct
*p
)
1015 static inline int security_task_kill(struct task_struct
*p
,
1016 struct siginfo
*info
, int sig
,
1022 static inline int security_task_prctl(int option
, unsigned long arg2
,
1027 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
1030 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
1033 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
1039 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1044 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
1049 static inline void security_msg_msg_free(struct msg_msg
*msg
)
1052 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
1057 static inline void security_msg_queue_free(struct msg_queue
*msq
)
1060 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
1066 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
1071 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1072 struct msg_msg
*msg
, int msqflg
)
1077 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1078 struct msg_msg
*msg
,
1079 struct task_struct
*target
,
1080 long type
, int mode
)
1085 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1090 static inline void security_shm_free(struct shmid_kernel
*shp
)
1093 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1099 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1104 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1105 char __user
*shmaddr
, int shmflg
)
1110 static inline int security_sem_alloc(struct sem_array
*sma
)
1115 static inline void security_sem_free(struct sem_array
*sma
)
1118 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1123 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1128 static inline int security_sem_semop(struct sem_array
*sma
,
1129 struct sembuf
*sops
, unsigned nsops
,
1135 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1138 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1143 static inline int security_setprocattr(char *name
, void *value
, size_t size
)
1148 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1153 static inline int security_ismaclabel(const char *name
)
1158 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1163 static inline int security_secctx_to_secid(const char *secdata
,
1170 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1174 static inline void security_inode_invalidate_secctx(struct inode
*inode
)
1178 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1182 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1186 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1190 #endif /* CONFIG_SECURITY */
1192 #ifdef CONFIG_SECURITY_NETWORK
1194 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1195 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1196 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1197 int security_socket_post_create(struct socket
*sock
, int family
,
1198 int type
, int protocol
, int kern
);
1199 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1200 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1201 int security_socket_listen(struct socket
*sock
, int backlog
);
1202 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1203 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1204 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1205 int size
, int flags
);
1206 int security_socket_getsockname(struct socket
*sock
);
1207 int security_socket_getpeername(struct socket
*sock
);
1208 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1209 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1210 int security_socket_shutdown(struct socket
*sock
, int how
);
1211 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1212 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1213 int __user
*optlen
, unsigned len
);
1214 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1215 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1216 void security_sk_free(struct sock
*sk
);
1217 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1218 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1219 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1220 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1221 int security_inet_conn_request(struct sock
*sk
,
1222 struct sk_buff
*skb
, struct request_sock
*req
);
1223 void security_inet_csk_clone(struct sock
*newsk
,
1224 const struct request_sock
*req
);
1225 void security_inet_conn_established(struct sock
*sk
,
1226 struct sk_buff
*skb
);
1227 int security_secmark_relabel_packet(u32 secid
);
1228 void security_secmark_refcount_inc(void);
1229 void security_secmark_refcount_dec(void);
1230 int security_tun_dev_alloc_security(void **security
);
1231 void security_tun_dev_free_security(void *security
);
1232 int security_tun_dev_create(void);
1233 int security_tun_dev_attach_queue(void *security
);
1234 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1235 int security_tun_dev_open(void *security
);
1237 #else /* CONFIG_SECURITY_NETWORK */
1238 static inline int security_unix_stream_connect(struct sock
*sock
,
1245 static inline int security_unix_may_send(struct socket
*sock
,
1246 struct socket
*other
)
1251 static inline int security_socket_create(int family
, int type
,
1252 int protocol
, int kern
)
1257 static inline int security_socket_post_create(struct socket
*sock
,
1260 int protocol
, int kern
)
1265 static inline int security_socket_bind(struct socket
*sock
,
1266 struct sockaddr
*address
,
1272 static inline int security_socket_connect(struct socket
*sock
,
1273 struct sockaddr
*address
,
1279 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1284 static inline int security_socket_accept(struct socket
*sock
,
1285 struct socket
*newsock
)
1290 static inline int security_socket_sendmsg(struct socket
*sock
,
1291 struct msghdr
*msg
, int size
)
1296 static inline int security_socket_recvmsg(struct socket
*sock
,
1297 struct msghdr
*msg
, int size
,
1303 static inline int security_socket_getsockname(struct socket
*sock
)
1308 static inline int security_socket_getpeername(struct socket
*sock
)
1313 static inline int security_socket_getsockopt(struct socket
*sock
,
1314 int level
, int optname
)
1319 static inline int security_socket_setsockopt(struct socket
*sock
,
1320 int level
, int optname
)
1325 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1329 static inline int security_sock_rcv_skb(struct sock
*sk
,
1330 struct sk_buff
*skb
)
1335 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1336 int __user
*optlen
, unsigned len
)
1338 return -ENOPROTOOPT
;
1341 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1343 return -ENOPROTOOPT
;
1346 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1351 static inline void security_sk_free(struct sock
*sk
)
1355 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1359 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1363 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1367 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1371 static inline int security_inet_conn_request(struct sock
*sk
,
1372 struct sk_buff
*skb
, struct request_sock
*req
)
1377 static inline void security_inet_csk_clone(struct sock
*newsk
,
1378 const struct request_sock
*req
)
1382 static inline void security_inet_conn_established(struct sock
*sk
,
1383 struct sk_buff
*skb
)
1387 static inline int security_secmark_relabel_packet(u32 secid
)
1392 static inline void security_secmark_refcount_inc(void)
1396 static inline void security_secmark_refcount_dec(void)
1400 static inline int security_tun_dev_alloc_security(void **security
)
1405 static inline void security_tun_dev_free_security(void *security
)
1409 static inline int security_tun_dev_create(void)
1414 static inline int security_tun_dev_attach_queue(void *security
)
1419 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1424 static inline int security_tun_dev_open(void *security
)
1428 #endif /* CONFIG_SECURITY_NETWORK */
1430 #ifdef CONFIG_SECURITY_INFINIBAND
1431 int security_ib_pkey_access(void *sec
, u64 subnet_prefix
, u16 pkey
);
1432 int security_ib_endport_manage_subnet(void *sec
, const char *name
, u8 port_num
);
1433 int security_ib_alloc_security(void **sec
);
1434 void security_ib_free_security(void *sec
);
1435 #else /* CONFIG_SECURITY_INFINIBAND */
1436 static inline int security_ib_pkey_access(void *sec
, u64 subnet_prefix
, u16 pkey
)
1441 static inline int security_ib_endport_manage_subnet(void *sec
, const char *dev_name
, u8 port_num
)
1446 static inline int security_ib_alloc_security(void **sec
)
1451 static inline void security_ib_free_security(void *sec
)
1454 #endif /* CONFIG_SECURITY_INFINIBAND */
1456 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1458 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1459 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1460 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1461 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1462 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1463 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1464 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1465 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1466 int security_xfrm_state_delete(struct xfrm_state
*x
);
1467 void security_xfrm_state_free(struct xfrm_state
*x
);
1468 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1469 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1470 struct xfrm_policy
*xp
,
1471 const struct flowi
*fl
);
1472 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1473 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1475 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1477 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1478 struct xfrm_user_sec_ctx
*sec_ctx
,
1484 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1489 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1493 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1498 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1499 struct xfrm_user_sec_ctx
*sec_ctx
)
1504 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1505 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1510 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1514 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1519 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1524 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1525 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1530 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1535 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1539 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1541 #ifdef CONFIG_SECURITY_PATH
1542 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
);
1543 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1544 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
);
1545 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1547 int security_path_truncate(const struct path
*path
);
1548 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1549 const char *old_name
);
1550 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
1551 struct dentry
*new_dentry
);
1552 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
1553 const struct path
*new_dir
, struct dentry
*new_dentry
,
1554 unsigned int flags
);
1555 int security_path_chmod(const struct path
*path
, umode_t mode
);
1556 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
);
1557 int security_path_chroot(const struct path
*path
);
1558 #else /* CONFIG_SECURITY_PATH */
1559 static inline int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
1564 static inline int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
,
1570 static inline int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
1575 static inline int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
,
1576 umode_t mode
, unsigned int dev
)
1581 static inline int security_path_truncate(const struct path
*path
)
1586 static inline int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1587 const char *old_name
)
1592 static inline int security_path_link(struct dentry
*old_dentry
,
1593 const struct path
*new_dir
,
1594 struct dentry
*new_dentry
)
1599 static inline int security_path_rename(const struct path
*old_dir
,
1600 struct dentry
*old_dentry
,
1601 const struct path
*new_dir
,
1602 struct dentry
*new_dentry
,
1608 static inline int security_path_chmod(const struct path
*path
, umode_t mode
)
1613 static inline int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
1618 static inline int security_path_chroot(const struct path
*path
)
1622 #endif /* CONFIG_SECURITY_PATH */
1625 #ifdef CONFIG_SECURITY
1627 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1628 void security_key_free(struct key
*key
);
1629 int security_key_permission(key_ref_t key_ref
,
1630 const struct cred
*cred
, unsigned perm
);
1631 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1635 static inline int security_key_alloc(struct key
*key
,
1636 const struct cred
*cred
,
1637 unsigned long flags
)
1642 static inline void security_key_free(struct key
*key
)
1646 static inline int security_key_permission(key_ref_t key_ref
,
1647 const struct cred
*cred
,
1653 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1660 #endif /* CONFIG_KEYS */
1663 #ifdef CONFIG_SECURITY
1664 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1665 int security_audit_rule_known(struct audit_krule
*krule
);
1666 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1667 struct audit_context
*actx
);
1668 void security_audit_rule_free(void *lsmrule
);
1672 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1678 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1683 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1684 void *lsmrule
, struct audit_context
*actx
)
1689 static inline void security_audit_rule_free(void *lsmrule
)
1692 #endif /* CONFIG_SECURITY */
1693 #endif /* CONFIG_AUDIT */
1695 #ifdef CONFIG_SECURITYFS
1697 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1698 struct dentry
*parent
, void *data
,
1699 const struct file_operations
*fops
);
1700 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1701 struct dentry
*securityfs_create_symlink(const char *name
,
1702 struct dentry
*parent
,
1704 const struct inode_operations
*iops
);
1705 extern void securityfs_remove(struct dentry
*dentry
);
1707 #else /* CONFIG_SECURITYFS */
1709 static inline struct dentry
*securityfs_create_dir(const char *name
,
1710 struct dentry
*parent
)
1712 return ERR_PTR(-ENODEV
);
1715 static inline struct dentry
*securityfs_create_file(const char *name
,
1717 struct dentry
*parent
,
1719 const struct file_operations
*fops
)
1721 return ERR_PTR(-ENODEV
);
1724 static inline struct dentry
*securityfs_create_symlink(const char *name
,
1725 struct dentry
*parent
,
1727 const struct inode_operations
*iops
)
1729 return ERR_PTR(-ENODEV
);
1732 static inline void securityfs_remove(struct dentry
*dentry
)
1737 #ifdef CONFIG_SECURITY
1739 static inline char *alloc_secdata(void)
1741 return (char *)get_zeroed_page(GFP_KERNEL
);
1744 static inline void free_secdata(void *secdata
)
1746 free_page((unsigned long)secdata
);
1751 static inline char *alloc_secdata(void)
1756 static inline void free_secdata(void *secdata
)
1758 #endif /* CONFIG_SECURITY */
1760 #endif /* ! __LINUX_SECURITY_H */