]>
git.proxmox.com Git - mirror_ubuntu-bionic-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)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
22 #ifndef __LINUX_SECURITY_H
23 #define __LINUX_SECURITY_H
25 #include <linux/key.h>
26 #include <linux/capability.h>
28 #include <linux/slab.h>
29 #include <linux/err.h>
30 #include <linux/string.h>
51 struct file_operations
;
59 /* If capable should audit the security request */
60 #define SECURITY_CAP_NOAUDIT 0
61 #define SECURITY_CAP_AUDIT 1
63 /* LSM Agnostic defines for sb_set_mnt_opts */
64 #define SECURITY_LSM_NATIVE_LABELS 1
68 struct user_namespace
;
71 /* These functions are in security/commoncap.c */
72 extern int cap_capable(const struct cred
*cred
, struct user_namespace
*ns
,
74 extern int cap_settime(const struct timespec64
*ts
, const struct timezone
*tz
);
75 extern int cap_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
76 extern int cap_ptrace_traceme(struct task_struct
*parent
);
77 extern int cap_capget(struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
78 extern int cap_capset(struct cred
*new, const struct cred
*old
,
79 const kernel_cap_t
*effective
,
80 const kernel_cap_t
*inheritable
,
81 const kernel_cap_t
*permitted
);
82 extern int cap_bprm_set_creds(struct linux_binprm
*bprm
);
83 extern int cap_bprm_secureexec(struct linux_binprm
*bprm
);
84 extern int cap_inode_setxattr(struct dentry
*dentry
, const char *name
,
85 const void *value
, size_t size
, int flags
);
86 extern int cap_inode_removexattr(struct dentry
*dentry
, const char *name
);
87 extern int cap_inode_need_killpriv(struct dentry
*dentry
);
88 extern int cap_inode_killpriv(struct dentry
*dentry
);
89 extern int cap_mmap_addr(unsigned long addr
);
90 extern int cap_mmap_file(struct file
*file
, unsigned long reqprot
,
91 unsigned long prot
, unsigned long flags
);
92 extern int cap_task_fix_setuid(struct cred
*new, const struct cred
*old
, int flags
);
93 extern int cap_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
94 unsigned long arg4
, unsigned long arg5
);
95 extern int cap_task_setscheduler(struct task_struct
*p
);
96 extern int cap_task_setioprio(struct task_struct
*p
, int ioprio
);
97 extern int cap_task_setnice(struct task_struct
*p
, int nice
);
98 extern int cap_vm_enough_memory(struct mm_struct
*mm
, long pages
);
107 struct xfrm_selector
;
110 struct xfrm_user_sec_ctx
;
114 extern unsigned long mmap_min_addr
;
115 extern unsigned long dac_mmap_min_addr
;
117 #define mmap_min_addr 0UL
118 #define dac_mmap_min_addr 0UL
122 * Values used in the task_security_ops calls
124 /* setuid or setgid, id0 == uid or gid */
125 #define LSM_SETID_ID 1
127 /* setreuid or setregid, id0 == real, id1 == eff */
128 #define LSM_SETID_RE 2
130 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
131 #define LSM_SETID_RES 4
133 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
134 #define LSM_SETID_FS 8
136 /* forward declares to avoid warnings */
140 /* bprm->unsafe reasons */
141 #define LSM_UNSAFE_SHARE 1
142 #define LSM_UNSAFE_PTRACE 2
143 #define LSM_UNSAFE_PTRACE_CAP 4
144 #define LSM_UNSAFE_NO_NEW_PRIVS 8
147 extern int mmap_min_addr_handler(struct ctl_table
*table
, int write
,
148 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
);
151 /* security_inode_init_security callback function to write xattrs */
152 typedef int (*initxattrs
) (struct inode
*inode
,
153 const struct xattr
*xattr_array
, void *fs_data
);
155 #ifdef CONFIG_SECURITY
157 struct security_mnt_opts
{
163 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
165 opts
->mnt_opts
= NULL
;
166 opts
->mnt_opts_flags
= NULL
;
167 opts
->num_mnt_opts
= 0;
170 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
174 for (i
= 0; i
< opts
->num_mnt_opts
; i
++)
175 kfree(opts
->mnt_opts
[i
]);
176 kfree(opts
->mnt_opts
);
177 opts
->mnt_opts
= NULL
;
178 kfree(opts
->mnt_opts_flags
);
179 opts
->mnt_opts_flags
= NULL
;
180 opts
->num_mnt_opts
= 0;
184 extern int security_init(void);
186 /* Security operations */
187 int security_binder_set_context_mgr(struct task_struct
*mgr
);
188 int security_binder_transaction(struct task_struct
*from
,
189 struct task_struct
*to
);
190 int security_binder_transfer_binder(struct task_struct
*from
,
191 struct task_struct
*to
);
192 int security_binder_transfer_file(struct task_struct
*from
,
193 struct task_struct
*to
, struct file
*file
);
194 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
195 int security_ptrace_traceme(struct task_struct
*parent
);
196 int security_capget(struct task_struct
*target
,
197 kernel_cap_t
*effective
,
198 kernel_cap_t
*inheritable
,
199 kernel_cap_t
*permitted
);
200 int security_capset(struct cred
*new, const struct cred
*old
,
201 const kernel_cap_t
*effective
,
202 const kernel_cap_t
*inheritable
,
203 const kernel_cap_t
*permitted
);
204 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
206 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
208 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
209 int security_quota_on(struct dentry
*dentry
);
210 int security_syslog(int type
);
211 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
);
212 static inline int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
214 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
216 return security_settime64(&ts64
, tz
);
218 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
219 int security_bprm_set_creds(struct linux_binprm
*bprm
);
220 int security_bprm_check(struct linux_binprm
*bprm
);
221 void security_bprm_committing_creds(struct linux_binprm
*bprm
);
222 void security_bprm_committed_creds(struct linux_binprm
*bprm
);
223 int security_bprm_secureexec(struct linux_binprm
*bprm
);
224 int security_sb_alloc(struct super_block
*sb
);
225 void security_sb_free(struct super_block
*sb
);
226 int security_sb_copy_data(char *orig
, char *copy
);
227 int security_sb_remount(struct super_block
*sb
, void *data
);
228 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
);
229 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
);
230 int security_sb_statfs(struct dentry
*dentry
);
231 int security_sb_mount(const char *dev_name
, const struct path
*path
,
232 const char *type
, unsigned long flags
, void *data
);
233 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
234 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
);
235 int security_sb_set_mnt_opts(struct super_block
*sb
,
236 struct security_mnt_opts
*opts
,
237 unsigned long kern_flags
,
238 unsigned long *set_kern_flags
);
239 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
240 struct super_block
*newsb
);
241 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
242 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
243 const struct qstr
*name
, void **ctx
,
245 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
247 const struct cred
*old
,
250 int security_inode_alloc(struct inode
*inode
);
251 void security_inode_free(struct inode
*inode
);
252 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
253 const struct qstr
*qstr
,
254 initxattrs initxattrs
, void *fs_data
);
255 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
256 const struct qstr
*qstr
, const char **name
,
257 void **value
, size_t *len
);
258 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
259 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
260 struct dentry
*new_dentry
);
261 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
262 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
263 const char *old_name
);
264 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
265 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
266 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
);
267 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
268 struct inode
*new_dir
, struct dentry
*new_dentry
,
270 int security_inode_readlink(struct dentry
*dentry
);
271 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
273 int security_inode_permission(struct inode
*inode
, int mask
);
274 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
275 int security_inode_getattr(const struct path
*path
);
276 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
277 const void *value
, size_t size
, int flags
);
278 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
279 const void *value
, size_t size
, int flags
);
280 int security_inode_getxattr(struct dentry
*dentry
, const char *name
);
281 int security_inode_listxattr(struct dentry
*dentry
);
282 int security_inode_removexattr(struct dentry
*dentry
, const char *name
);
283 int security_inode_need_killpriv(struct dentry
*dentry
);
284 int security_inode_killpriv(struct dentry
*dentry
);
285 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
286 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
287 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
288 void security_inode_getsecid(struct inode
*inode
, u32
*secid
);
289 int security_inode_copy_up(struct dentry
*src
, struct cred
**new);
290 int security_inode_copy_up_xattr(const char *name
);
291 int security_file_permission(struct file
*file
, int mask
);
292 int security_file_alloc(struct file
*file
);
293 void security_file_free(struct file
*file
);
294 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
295 int security_mmap_file(struct file
*file
, unsigned long prot
,
296 unsigned long flags
);
297 int security_mmap_addr(unsigned long addr
);
298 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
300 int security_file_lock(struct file
*file
, unsigned int cmd
);
301 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
302 void security_file_set_fowner(struct file
*file
);
303 int security_file_send_sigiotask(struct task_struct
*tsk
,
304 struct fown_struct
*fown
, int sig
);
305 int security_file_receive(struct file
*file
);
306 int security_file_open(struct file
*file
, const struct cred
*cred
);
307 int security_task_create(unsigned long clone_flags
);
308 void security_task_free(struct task_struct
*task
);
309 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
);
310 void security_cred_free(struct cred
*cred
);
311 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
);
312 void security_transfer_creds(struct cred
*new, const struct cred
*old
);
313 int security_kernel_act_as(struct cred
*new, u32 secid
);
314 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
);
315 int security_kernel_module_request(char *kmod_name
);
316 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
);
317 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
318 enum kernel_read_file_id id
);
319 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
321 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
322 int security_task_getpgid(struct task_struct
*p
);
323 int security_task_getsid(struct task_struct
*p
);
324 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
325 int security_task_setnice(struct task_struct
*p
, int nice
);
326 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
327 int security_task_getioprio(struct task_struct
*p
);
328 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
329 struct rlimit
*new_rlim
);
330 int security_task_setscheduler(struct task_struct
*p
);
331 int security_task_getscheduler(struct task_struct
*p
);
332 int security_task_movememory(struct task_struct
*p
);
333 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
335 int security_task_wait(struct task_struct
*p
);
336 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
337 unsigned long arg4
, unsigned long arg5
);
338 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
339 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
340 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
341 int security_msg_msg_alloc(struct msg_msg
*msg
);
342 void security_msg_msg_free(struct msg_msg
*msg
);
343 int security_msg_queue_alloc(struct msg_queue
*msq
);
344 void security_msg_queue_free(struct msg_queue
*msq
);
345 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
346 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
347 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
348 struct msg_msg
*msg
, int msqflg
);
349 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
350 struct task_struct
*target
, long type
, int mode
);
351 int security_shm_alloc(struct shmid_kernel
*shp
);
352 void security_shm_free(struct shmid_kernel
*shp
);
353 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
354 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
355 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
356 int security_sem_alloc(struct sem_array
*sma
);
357 void security_sem_free(struct sem_array
*sma
);
358 int security_sem_associate(struct sem_array
*sma
, int semflg
);
359 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
360 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
361 unsigned nsops
, int alter
);
362 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
);
363 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
364 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
);
365 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
366 int security_ismaclabel(const char *name
);
367 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
368 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
);
369 void security_release_secctx(char *secdata
, u32 seclen
);
371 void security_inode_invalidate_secctx(struct inode
*inode
);
372 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
373 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
374 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
375 #else /* CONFIG_SECURITY */
376 struct security_mnt_opts
{
379 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
383 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
388 * This is the default capabilities functionality. Most of these functions
389 * are just stubbed out, but a few must call the proper capable code.
392 static inline int security_init(void)
397 static inline int security_binder_set_context_mgr(struct task_struct
*mgr
)
402 static inline int security_binder_transaction(struct task_struct
*from
,
403 struct task_struct
*to
)
408 static inline int security_binder_transfer_binder(struct task_struct
*from
,
409 struct task_struct
*to
)
414 static inline int security_binder_transfer_file(struct task_struct
*from
,
415 struct task_struct
*to
,
421 static inline int security_ptrace_access_check(struct task_struct
*child
,
424 return cap_ptrace_access_check(child
, mode
);
427 static inline int security_ptrace_traceme(struct task_struct
*parent
)
429 return cap_ptrace_traceme(parent
);
432 static inline int security_capget(struct task_struct
*target
,
433 kernel_cap_t
*effective
,
434 kernel_cap_t
*inheritable
,
435 kernel_cap_t
*permitted
)
437 return cap_capget(target
, effective
, inheritable
, permitted
);
440 static inline int security_capset(struct cred
*new,
441 const struct cred
*old
,
442 const kernel_cap_t
*effective
,
443 const kernel_cap_t
*inheritable
,
444 const kernel_cap_t
*permitted
)
446 return cap_capset(new, old
, effective
, inheritable
, permitted
);
449 static inline int security_capable(const struct cred
*cred
,
450 struct user_namespace
*ns
, int cap
)
452 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
455 static inline int security_capable_noaudit(const struct cred
*cred
,
456 struct user_namespace
*ns
, int cap
) {
457 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
460 static inline int security_quotactl(int cmds
, int type
, int id
,
461 struct super_block
*sb
)
466 static inline int security_quota_on(struct dentry
*dentry
)
471 static inline int security_syslog(int type
)
476 static inline int security_settime64(const struct timespec64
*ts
,
477 const struct timezone
*tz
)
479 return cap_settime(ts
, tz
);
482 static inline int security_settime(const struct timespec
*ts
,
483 const struct timezone
*tz
)
485 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
487 return cap_settime(&ts64
, tz
);
490 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
492 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
495 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
497 return cap_bprm_set_creds(bprm
);
500 static inline int security_bprm_check(struct linux_binprm
*bprm
)
505 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
509 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
513 static inline int security_bprm_secureexec(struct linux_binprm
*bprm
)
515 return cap_bprm_secureexec(bprm
);
518 static inline int security_sb_alloc(struct super_block
*sb
)
523 static inline void security_sb_free(struct super_block
*sb
)
526 static inline int security_sb_copy_data(char *orig
, char *copy
)
531 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
536 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
541 static inline int security_sb_show_options(struct seq_file
*m
,
542 struct super_block
*sb
)
547 static inline int security_sb_statfs(struct dentry
*dentry
)
552 static inline int security_sb_mount(const char *dev_name
, const struct path
*path
,
553 const char *type
, unsigned long flags
,
559 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
564 static inline int security_sb_pivotroot(const struct path
*old_path
,
565 const struct path
*new_path
)
570 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
571 struct security_mnt_opts
*opts
,
572 unsigned long kern_flags
,
573 unsigned long *set_kern_flags
)
578 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
579 struct super_block
*newsb
)
584 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
589 static inline int security_inode_alloc(struct inode
*inode
)
594 static inline void security_inode_free(struct inode
*inode
)
597 static inline int security_dentry_init_security(struct dentry
*dentry
,
599 const struct qstr
*name
,
606 static inline int security_dentry_create_files_as(struct dentry
*dentry
,
607 int mode
, struct qstr
*name
,
608 const struct cred
*old
,
615 static inline int security_inode_init_security(struct inode
*inode
,
617 const struct qstr
*qstr
,
618 const initxattrs xattrs
,
624 static inline int security_old_inode_init_security(struct inode
*inode
,
626 const struct qstr
*qstr
,
628 void **value
, size_t *len
)
633 static inline int security_inode_create(struct inode
*dir
,
634 struct dentry
*dentry
,
640 static inline int security_inode_link(struct dentry
*old_dentry
,
642 struct dentry
*new_dentry
)
647 static inline int security_inode_unlink(struct inode
*dir
,
648 struct dentry
*dentry
)
653 static inline int security_inode_symlink(struct inode
*dir
,
654 struct dentry
*dentry
,
655 const char *old_name
)
660 static inline int security_inode_mkdir(struct inode
*dir
,
661 struct dentry
*dentry
,
667 static inline int security_inode_rmdir(struct inode
*dir
,
668 struct dentry
*dentry
)
673 static inline int security_inode_mknod(struct inode
*dir
,
674 struct dentry
*dentry
,
680 static inline int security_inode_rename(struct inode
*old_dir
,
681 struct dentry
*old_dentry
,
682 struct inode
*new_dir
,
683 struct dentry
*new_dentry
,
689 static inline int security_inode_readlink(struct dentry
*dentry
)
694 static inline int security_inode_follow_link(struct dentry
*dentry
,
701 static inline int security_inode_permission(struct inode
*inode
, int mask
)
706 static inline int security_inode_setattr(struct dentry
*dentry
,
712 static inline int security_inode_getattr(const struct path
*path
)
717 static inline int security_inode_setxattr(struct dentry
*dentry
,
718 const char *name
, const void *value
, size_t size
, int flags
)
720 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
723 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
724 const char *name
, const void *value
, size_t size
, int flags
)
727 static inline int security_inode_getxattr(struct dentry
*dentry
,
733 static inline int security_inode_listxattr(struct dentry
*dentry
)
738 static inline int security_inode_removexattr(struct dentry
*dentry
,
741 return cap_inode_removexattr(dentry
, name
);
744 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
746 return cap_inode_need_killpriv(dentry
);
749 static inline int security_inode_killpriv(struct dentry
*dentry
)
751 return cap_inode_killpriv(dentry
);
754 static inline int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
759 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
764 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
769 static inline void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
774 static inline int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
779 static inline int security_inode_copy_up_xattr(const char *name
)
784 static inline int security_file_permission(struct file
*file
, int mask
)
789 static inline int security_file_alloc(struct file
*file
)
794 static inline void security_file_free(struct file
*file
)
797 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
803 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
809 static inline int security_mmap_addr(unsigned long addr
)
811 return cap_mmap_addr(addr
);
814 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
815 unsigned long reqprot
,
821 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
826 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
832 static inline void security_file_set_fowner(struct file
*file
)
837 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
838 struct fown_struct
*fown
,
844 static inline int security_file_receive(struct file
*file
)
849 static inline int security_file_open(struct file
*file
,
850 const struct cred
*cred
)
855 static inline int security_task_create(unsigned long clone_flags
)
860 static inline void security_task_free(struct task_struct
*task
)
863 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
868 static inline void security_cred_free(struct cred
*cred
)
871 static inline int security_prepare_creds(struct cred
*new,
872 const struct cred
*old
,
878 static inline void security_transfer_creds(struct cred
*new,
879 const struct cred
*old
)
883 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
888 static inline int security_kernel_create_files_as(struct cred
*cred
,
894 static inline int security_kernel_module_request(char *kmod_name
)
899 static inline int security_kernel_read_file(struct file
*file
,
900 enum kernel_read_file_id id
)
905 static inline int security_kernel_post_read_file(struct file
*file
,
906 char *buf
, loff_t size
,
907 enum kernel_read_file_id id
)
912 static inline int security_task_fix_setuid(struct cred
*new,
913 const struct cred
*old
,
916 return cap_task_fix_setuid(new, old
, flags
);
919 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
924 static inline int security_task_getpgid(struct task_struct
*p
)
929 static inline int security_task_getsid(struct task_struct
*p
)
934 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
939 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
941 return cap_task_setnice(p
, nice
);
944 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
946 return cap_task_setioprio(p
, ioprio
);
949 static inline int security_task_getioprio(struct task_struct
*p
)
954 static inline int security_task_setrlimit(struct task_struct
*p
,
955 unsigned int resource
,
956 struct rlimit
*new_rlim
)
961 static inline int security_task_setscheduler(struct task_struct
*p
)
963 return cap_task_setscheduler(p
);
966 static inline int security_task_getscheduler(struct task_struct
*p
)
971 static inline int security_task_movememory(struct task_struct
*p
)
976 static inline int security_task_kill(struct task_struct
*p
,
977 struct siginfo
*info
, int sig
,
983 static inline int security_task_wait(struct task_struct
*p
)
988 static inline int security_task_prctl(int option
, unsigned long arg2
,
993 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
996 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
999 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
1005 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1010 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
1015 static inline void security_msg_msg_free(struct msg_msg
*msg
)
1018 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
1023 static inline void security_msg_queue_free(struct msg_queue
*msq
)
1026 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
1032 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
1037 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1038 struct msg_msg
*msg
, int msqflg
)
1043 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1044 struct msg_msg
*msg
,
1045 struct task_struct
*target
,
1046 long type
, int mode
)
1051 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1056 static inline void security_shm_free(struct shmid_kernel
*shp
)
1059 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1065 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1070 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1071 char __user
*shmaddr
, int shmflg
)
1076 static inline int security_sem_alloc(struct sem_array
*sma
)
1081 static inline void security_sem_free(struct sem_array
*sma
)
1084 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1089 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1094 static inline int security_sem_semop(struct sem_array
*sma
,
1095 struct sembuf
*sops
, unsigned nsops
,
1101 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1104 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1109 static inline int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1114 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1119 static inline int security_ismaclabel(const char *name
)
1124 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1129 static inline int security_secctx_to_secid(const char *secdata
,
1136 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1140 static inline void security_inode_invalidate_secctx(struct inode
*inode
)
1144 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1148 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1152 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1156 #endif /* CONFIG_SECURITY */
1158 #ifdef CONFIG_SECURITY_NETWORK
1160 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1161 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1162 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1163 int security_socket_post_create(struct socket
*sock
, int family
,
1164 int type
, int protocol
, int kern
);
1165 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1166 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1167 int security_socket_listen(struct socket
*sock
, int backlog
);
1168 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1169 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1170 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1171 int size
, int flags
);
1172 int security_socket_getsockname(struct socket
*sock
);
1173 int security_socket_getpeername(struct socket
*sock
);
1174 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1175 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1176 int security_socket_shutdown(struct socket
*sock
, int how
);
1177 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1178 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1179 int __user
*optlen
, unsigned len
);
1180 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1181 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1182 void security_sk_free(struct sock
*sk
);
1183 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1184 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1185 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1186 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1187 int security_inet_conn_request(struct sock
*sk
,
1188 struct sk_buff
*skb
, struct request_sock
*req
);
1189 void security_inet_csk_clone(struct sock
*newsk
,
1190 const struct request_sock
*req
);
1191 void security_inet_conn_established(struct sock
*sk
,
1192 struct sk_buff
*skb
);
1193 int security_secmark_relabel_packet(u32 secid
);
1194 void security_secmark_refcount_inc(void);
1195 void security_secmark_refcount_dec(void);
1196 int security_tun_dev_alloc_security(void **security
);
1197 void security_tun_dev_free_security(void *security
);
1198 int security_tun_dev_create(void);
1199 int security_tun_dev_attach_queue(void *security
);
1200 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1201 int security_tun_dev_open(void *security
);
1203 #else /* CONFIG_SECURITY_NETWORK */
1204 static inline int security_unix_stream_connect(struct sock
*sock
,
1211 static inline int security_unix_may_send(struct socket
*sock
,
1212 struct socket
*other
)
1217 static inline int security_socket_create(int family
, int type
,
1218 int protocol
, int kern
)
1223 static inline int security_socket_post_create(struct socket
*sock
,
1226 int protocol
, int kern
)
1231 static inline int security_socket_bind(struct socket
*sock
,
1232 struct sockaddr
*address
,
1238 static inline int security_socket_connect(struct socket
*sock
,
1239 struct sockaddr
*address
,
1245 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1250 static inline int security_socket_accept(struct socket
*sock
,
1251 struct socket
*newsock
)
1256 static inline int security_socket_sendmsg(struct socket
*sock
,
1257 struct msghdr
*msg
, int size
)
1262 static inline int security_socket_recvmsg(struct socket
*sock
,
1263 struct msghdr
*msg
, int size
,
1269 static inline int security_socket_getsockname(struct socket
*sock
)
1274 static inline int security_socket_getpeername(struct socket
*sock
)
1279 static inline int security_socket_getsockopt(struct socket
*sock
,
1280 int level
, int optname
)
1285 static inline int security_socket_setsockopt(struct socket
*sock
,
1286 int level
, int optname
)
1291 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1295 static inline int security_sock_rcv_skb(struct sock
*sk
,
1296 struct sk_buff
*skb
)
1301 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1302 int __user
*optlen
, unsigned len
)
1304 return -ENOPROTOOPT
;
1307 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1309 return -ENOPROTOOPT
;
1312 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1317 static inline void security_sk_free(struct sock
*sk
)
1321 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1325 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1329 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1333 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1337 static inline int security_inet_conn_request(struct sock
*sk
,
1338 struct sk_buff
*skb
, struct request_sock
*req
)
1343 static inline void security_inet_csk_clone(struct sock
*newsk
,
1344 const struct request_sock
*req
)
1348 static inline void security_inet_conn_established(struct sock
*sk
,
1349 struct sk_buff
*skb
)
1353 static inline int security_secmark_relabel_packet(u32 secid
)
1358 static inline void security_secmark_refcount_inc(void)
1362 static inline void security_secmark_refcount_dec(void)
1366 static inline int security_tun_dev_alloc_security(void **security
)
1371 static inline void security_tun_dev_free_security(void *security
)
1375 static inline int security_tun_dev_create(void)
1380 static inline int security_tun_dev_attach_queue(void *security
)
1385 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1390 static inline int security_tun_dev_open(void *security
)
1394 #endif /* CONFIG_SECURITY_NETWORK */
1396 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1398 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1399 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1400 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1401 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1402 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1403 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1404 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1405 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1406 int security_xfrm_state_delete(struct xfrm_state
*x
);
1407 void security_xfrm_state_free(struct xfrm_state
*x
);
1408 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1409 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1410 struct xfrm_policy
*xp
,
1411 const struct flowi
*fl
);
1412 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1413 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1415 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1417 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1418 struct xfrm_user_sec_ctx
*sec_ctx
,
1424 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1429 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1433 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1438 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1439 struct xfrm_user_sec_ctx
*sec_ctx
)
1444 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1445 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1450 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1454 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1459 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1464 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1465 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1470 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1475 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1479 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1481 #ifdef CONFIG_SECURITY_PATH
1482 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
);
1483 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1484 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
);
1485 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1487 int security_path_truncate(const struct path
*path
);
1488 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1489 const char *old_name
);
1490 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
1491 struct dentry
*new_dentry
);
1492 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
1493 const struct path
*new_dir
, struct dentry
*new_dentry
,
1494 unsigned int flags
);
1495 int security_path_chmod(const struct path
*path
, umode_t mode
);
1496 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
);
1497 int security_path_chroot(const struct path
*path
);
1498 #else /* CONFIG_SECURITY_PATH */
1499 static inline int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
1504 static inline int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
,
1510 static inline int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
1515 static inline int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
,
1516 umode_t mode
, unsigned int dev
)
1521 static inline int security_path_truncate(const struct path
*path
)
1526 static inline int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1527 const char *old_name
)
1532 static inline int security_path_link(struct dentry
*old_dentry
,
1533 const struct path
*new_dir
,
1534 struct dentry
*new_dentry
)
1539 static inline int security_path_rename(const struct path
*old_dir
,
1540 struct dentry
*old_dentry
,
1541 const struct path
*new_dir
,
1542 struct dentry
*new_dentry
,
1548 static inline int security_path_chmod(const struct path
*path
, umode_t mode
)
1553 static inline int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
1558 static inline int security_path_chroot(const struct path
*path
)
1562 #endif /* CONFIG_SECURITY_PATH */
1565 #ifdef CONFIG_SECURITY
1567 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1568 void security_key_free(struct key
*key
);
1569 int security_key_permission(key_ref_t key_ref
,
1570 const struct cred
*cred
, unsigned perm
);
1571 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1575 static inline int security_key_alloc(struct key
*key
,
1576 const struct cred
*cred
,
1577 unsigned long flags
)
1582 static inline void security_key_free(struct key
*key
)
1586 static inline int security_key_permission(key_ref_t key_ref
,
1587 const struct cred
*cred
,
1593 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1600 #endif /* CONFIG_KEYS */
1603 #ifdef CONFIG_SECURITY
1604 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1605 int security_audit_rule_known(struct audit_krule
*krule
);
1606 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1607 struct audit_context
*actx
);
1608 void security_audit_rule_free(void *lsmrule
);
1612 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1618 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1623 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1624 void *lsmrule
, struct audit_context
*actx
)
1629 static inline void security_audit_rule_free(void *lsmrule
)
1632 #endif /* CONFIG_SECURITY */
1633 #endif /* CONFIG_AUDIT */
1635 #ifdef CONFIG_SECURITYFS
1637 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1638 struct dentry
*parent
, void *data
,
1639 const struct file_operations
*fops
);
1640 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1641 extern void securityfs_remove(struct dentry
*dentry
);
1643 #else /* CONFIG_SECURITYFS */
1645 static inline struct dentry
*securityfs_create_dir(const char *name
,
1646 struct dentry
*parent
)
1648 return ERR_PTR(-ENODEV
);
1651 static inline struct dentry
*securityfs_create_file(const char *name
,
1653 struct dentry
*parent
,
1655 const struct file_operations
*fops
)
1657 return ERR_PTR(-ENODEV
);
1660 static inline void securityfs_remove(struct dentry
*dentry
)
1665 #ifdef CONFIG_SECURITY
1667 static inline char *alloc_secdata(void)
1669 return (char *)get_zeroed_page(GFP_KERNEL
);
1672 static inline void free_secdata(void *secdata
)
1674 free_page((unsigned long)secdata
);
1679 static inline char *alloc_secdata(void)
1684 static inline void free_secdata(void *secdata
)
1686 #endif /* CONFIG_SECURITY */
1688 #endif /* ! __LINUX_SECURITY_H */