]>
git.proxmox.com Git - mirror_ubuntu-artful-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 /* Flags for security_task_prlimit(). */
137 #define LSM_PRLIMIT_READ 1
138 #define LSM_PRLIMIT_WRITE 2
140 /* forward declares to avoid warnings */
144 /* bprm->unsafe reasons */
145 #define LSM_UNSAFE_SHARE 1
146 #define LSM_UNSAFE_PTRACE 2
147 #define LSM_UNSAFE_NO_NEW_PRIVS 4
150 extern int mmap_min_addr_handler(struct ctl_table
*table
, int write
,
151 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
);
154 /* security_inode_init_security callback function to write xattrs */
155 typedef int (*initxattrs
) (struct inode
*inode
,
156 const struct xattr
*xattr_array
, void *fs_data
);
158 #ifdef CONFIG_SECURITY
160 struct security_mnt_opts
{
166 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
168 opts
->mnt_opts
= NULL
;
169 opts
->mnt_opts_flags
= NULL
;
170 opts
->num_mnt_opts
= 0;
173 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
177 for (i
= 0; i
< opts
->num_mnt_opts
; i
++)
178 kfree(opts
->mnt_opts
[i
]);
179 kfree(opts
->mnt_opts
);
180 opts
->mnt_opts
= NULL
;
181 kfree(opts
->mnt_opts_flags
);
182 opts
->mnt_opts_flags
= NULL
;
183 opts
->num_mnt_opts
= 0;
187 extern int security_init(void);
189 /* Security operations */
190 int security_binder_set_context_mgr(struct task_struct
*mgr
);
191 int security_binder_transaction(struct task_struct
*from
,
192 struct task_struct
*to
);
193 int security_binder_transfer_binder(struct task_struct
*from
,
194 struct task_struct
*to
);
195 int security_binder_transfer_file(struct task_struct
*from
,
196 struct task_struct
*to
, struct file
*file
);
197 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
198 int security_ptrace_traceme(struct task_struct
*parent
);
199 int security_capget(struct task_struct
*target
,
200 kernel_cap_t
*effective
,
201 kernel_cap_t
*inheritable
,
202 kernel_cap_t
*permitted
);
203 int security_capset(struct cred
*new, const struct cred
*old
,
204 const kernel_cap_t
*effective
,
205 const kernel_cap_t
*inheritable
,
206 const kernel_cap_t
*permitted
);
207 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
209 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
211 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
212 int security_quota_on(struct dentry
*dentry
);
213 int security_syslog(int type
);
214 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
);
215 static inline int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
217 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
219 return security_settime64(&ts64
, tz
);
221 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
222 int security_bprm_set_creds(struct linux_binprm
*bprm
);
223 int security_bprm_check(struct linux_binprm
*bprm
);
224 void security_bprm_committing_creds(struct linux_binprm
*bprm
);
225 void security_bprm_committed_creds(struct linux_binprm
*bprm
);
226 int security_bprm_secureexec(struct linux_binprm
*bprm
);
227 int security_sb_alloc(struct super_block
*sb
);
228 void security_sb_free(struct super_block
*sb
);
229 int security_sb_copy_data(char *orig
, char *copy
);
230 int security_sb_remount(struct super_block
*sb
, void *data
);
231 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
);
232 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
);
233 int security_sb_statfs(struct dentry
*dentry
);
234 int security_sb_mount(const char *dev_name
, const struct path
*path
,
235 const char *type
, unsigned long flags
, void *data
);
236 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
237 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
);
238 int security_sb_set_mnt_opts(struct super_block
*sb
,
239 struct security_mnt_opts
*opts
,
240 unsigned long kern_flags
,
241 unsigned long *set_kern_flags
);
242 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
243 struct super_block
*newsb
);
244 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
245 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
246 const struct qstr
*name
, void **ctx
,
248 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
250 const struct cred
*old
,
253 int security_inode_alloc(struct inode
*inode
);
254 void security_inode_free(struct inode
*inode
);
255 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
256 const struct qstr
*qstr
,
257 initxattrs initxattrs
, void *fs_data
);
258 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
259 const struct qstr
*qstr
, const char **name
,
260 void **value
, size_t *len
);
261 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
262 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
263 struct dentry
*new_dentry
);
264 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
265 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
266 const char *old_name
);
267 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
268 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
269 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
);
270 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
271 struct inode
*new_dir
, struct dentry
*new_dentry
,
273 int security_inode_readlink(struct dentry
*dentry
);
274 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
276 int security_inode_permission(struct inode
*inode
, int mask
);
277 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
278 int security_inode_getattr(const struct path
*path
);
279 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
280 const void *value
, size_t size
, int flags
);
281 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
282 const void *value
, size_t size
, int flags
);
283 int security_inode_getxattr(struct dentry
*dentry
, const char *name
);
284 int security_inode_listxattr(struct dentry
*dentry
);
285 int security_inode_removexattr(struct dentry
*dentry
, const char *name
);
286 int security_inode_need_killpriv(struct dentry
*dentry
);
287 int security_inode_killpriv(struct dentry
*dentry
);
288 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
289 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
290 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
291 void security_inode_getsecid(struct inode
*inode
, u32
*secid
);
292 int security_inode_copy_up(struct dentry
*src
, struct cred
**new);
293 int security_inode_copy_up_xattr(const char *name
);
294 int security_file_permission(struct file
*file
, int mask
);
295 int security_file_alloc(struct file
*file
);
296 void security_file_free(struct file
*file
);
297 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
298 int security_mmap_file(struct file
*file
, unsigned long prot
,
299 unsigned long flags
);
300 int security_mmap_addr(unsigned long addr
);
301 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
303 int security_file_lock(struct file
*file
, unsigned int cmd
);
304 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
305 void security_file_set_fowner(struct file
*file
);
306 int security_file_send_sigiotask(struct task_struct
*tsk
,
307 struct fown_struct
*fown
, int sig
);
308 int security_file_receive(struct file
*file
);
309 int security_file_open(struct file
*file
, const struct cred
*cred
);
310 int security_task_create(unsigned long clone_flags
);
311 int security_task_alloc(struct task_struct
*task
, unsigned long clone_flags
);
312 void security_task_free(struct task_struct
*task
);
313 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
);
314 void security_cred_free(struct cred
*cred
);
315 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
);
316 void security_transfer_creds(struct cred
*new, const struct cred
*old
);
317 int security_kernel_act_as(struct cred
*new, u32 secid
);
318 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
);
319 int security_kernel_module_request(char *kmod_name
);
320 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
);
321 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
322 enum kernel_read_file_id id
);
323 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
325 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
326 int security_task_getpgid(struct task_struct
*p
);
327 int security_task_getsid(struct task_struct
*p
);
328 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
329 int security_task_setnice(struct task_struct
*p
, int nice
);
330 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
331 int security_task_getioprio(struct task_struct
*p
);
332 int security_task_prlimit(const struct cred
*cred
, const struct cred
*tcred
,
334 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
335 struct rlimit
*new_rlim
);
336 int security_task_setscheduler(struct task_struct
*p
);
337 int security_task_getscheduler(struct task_struct
*p
);
338 int security_task_movememory(struct task_struct
*p
);
339 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
341 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
342 unsigned long arg4
, unsigned long arg5
);
343 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
344 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
345 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
346 int security_msg_msg_alloc(struct msg_msg
*msg
);
347 void security_msg_msg_free(struct msg_msg
*msg
);
348 int security_msg_queue_alloc(struct msg_queue
*msq
);
349 void security_msg_queue_free(struct msg_queue
*msq
);
350 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
351 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
352 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
353 struct msg_msg
*msg
, int msqflg
);
354 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
355 struct task_struct
*target
, long type
, int mode
);
356 int security_shm_alloc(struct shmid_kernel
*shp
);
357 void security_shm_free(struct shmid_kernel
*shp
);
358 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
359 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
360 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
361 int security_sem_alloc(struct sem_array
*sma
);
362 void security_sem_free(struct sem_array
*sma
);
363 int security_sem_associate(struct sem_array
*sma
, int semflg
);
364 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
365 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
366 unsigned nsops
, int alter
);
367 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
);
368 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
369 int security_setprocattr(const char *name
, void *value
, size_t size
);
370 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
371 int security_ismaclabel(const char *name
);
372 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
373 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
);
374 void security_release_secctx(char *secdata
, u32 seclen
);
376 void security_inode_invalidate_secctx(struct inode
*inode
);
377 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
378 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
379 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
380 #else /* CONFIG_SECURITY */
381 struct security_mnt_opts
{
384 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
388 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
393 * This is the default capabilities functionality. Most of these functions
394 * are just stubbed out, but a few must call the proper capable code.
397 static inline int security_init(void)
402 static inline int security_binder_set_context_mgr(struct task_struct
*mgr
)
407 static inline int security_binder_transaction(struct task_struct
*from
,
408 struct task_struct
*to
)
413 static inline int security_binder_transfer_binder(struct task_struct
*from
,
414 struct task_struct
*to
)
419 static inline int security_binder_transfer_file(struct task_struct
*from
,
420 struct task_struct
*to
,
426 static inline int security_ptrace_access_check(struct task_struct
*child
,
429 return cap_ptrace_access_check(child
, mode
);
432 static inline int security_ptrace_traceme(struct task_struct
*parent
)
434 return cap_ptrace_traceme(parent
);
437 static inline int security_capget(struct task_struct
*target
,
438 kernel_cap_t
*effective
,
439 kernel_cap_t
*inheritable
,
440 kernel_cap_t
*permitted
)
442 return cap_capget(target
, effective
, inheritable
, permitted
);
445 static inline int security_capset(struct cred
*new,
446 const struct cred
*old
,
447 const kernel_cap_t
*effective
,
448 const kernel_cap_t
*inheritable
,
449 const kernel_cap_t
*permitted
)
451 return cap_capset(new, old
, effective
, inheritable
, permitted
);
454 static inline int security_capable(const struct cred
*cred
,
455 struct user_namespace
*ns
, int cap
)
457 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
460 static inline int security_capable_noaudit(const struct cred
*cred
,
461 struct user_namespace
*ns
, int cap
) {
462 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
465 static inline int security_quotactl(int cmds
, int type
, int id
,
466 struct super_block
*sb
)
471 static inline int security_quota_on(struct dentry
*dentry
)
476 static inline int security_syslog(int type
)
481 static inline int security_settime64(const struct timespec64
*ts
,
482 const struct timezone
*tz
)
484 return cap_settime(ts
, tz
);
487 static inline int security_settime(const struct timespec
*ts
,
488 const struct timezone
*tz
)
490 struct timespec64 ts64
= timespec_to_timespec64(*ts
);
492 return cap_settime(&ts64
, tz
);
495 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
497 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
500 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
502 return cap_bprm_set_creds(bprm
);
505 static inline int security_bprm_check(struct linux_binprm
*bprm
)
510 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
514 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
518 static inline int security_bprm_secureexec(struct linux_binprm
*bprm
)
520 return cap_bprm_secureexec(bprm
);
523 static inline int security_sb_alloc(struct super_block
*sb
)
528 static inline void security_sb_free(struct super_block
*sb
)
531 static inline int security_sb_copy_data(char *orig
, char *copy
)
536 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
541 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
546 static inline int security_sb_show_options(struct seq_file
*m
,
547 struct super_block
*sb
)
552 static inline int security_sb_statfs(struct dentry
*dentry
)
557 static inline int security_sb_mount(const char *dev_name
, const struct path
*path
,
558 const char *type
, unsigned long flags
,
564 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
569 static inline int security_sb_pivotroot(const struct path
*old_path
,
570 const struct path
*new_path
)
575 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
576 struct security_mnt_opts
*opts
,
577 unsigned long kern_flags
,
578 unsigned long *set_kern_flags
)
583 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
584 struct super_block
*newsb
)
589 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
594 static inline int security_inode_alloc(struct inode
*inode
)
599 static inline void security_inode_free(struct inode
*inode
)
602 static inline int security_dentry_init_security(struct dentry
*dentry
,
604 const struct qstr
*name
,
611 static inline int security_dentry_create_files_as(struct dentry
*dentry
,
612 int mode
, struct qstr
*name
,
613 const struct cred
*old
,
620 static inline int security_inode_init_security(struct inode
*inode
,
622 const struct qstr
*qstr
,
623 const initxattrs xattrs
,
629 static inline int security_old_inode_init_security(struct inode
*inode
,
631 const struct qstr
*qstr
,
633 void **value
, size_t *len
)
638 static inline int security_inode_create(struct inode
*dir
,
639 struct dentry
*dentry
,
645 static inline int security_inode_link(struct dentry
*old_dentry
,
647 struct dentry
*new_dentry
)
652 static inline int security_inode_unlink(struct inode
*dir
,
653 struct dentry
*dentry
)
658 static inline int security_inode_symlink(struct inode
*dir
,
659 struct dentry
*dentry
,
660 const char *old_name
)
665 static inline int security_inode_mkdir(struct inode
*dir
,
666 struct dentry
*dentry
,
672 static inline int security_inode_rmdir(struct inode
*dir
,
673 struct dentry
*dentry
)
678 static inline int security_inode_mknod(struct inode
*dir
,
679 struct dentry
*dentry
,
685 static inline int security_inode_rename(struct inode
*old_dir
,
686 struct dentry
*old_dentry
,
687 struct inode
*new_dir
,
688 struct dentry
*new_dentry
,
694 static inline int security_inode_readlink(struct dentry
*dentry
)
699 static inline int security_inode_follow_link(struct dentry
*dentry
,
706 static inline int security_inode_permission(struct inode
*inode
, int mask
)
711 static inline int security_inode_setattr(struct dentry
*dentry
,
717 static inline int security_inode_getattr(const struct path
*path
)
722 static inline int security_inode_setxattr(struct dentry
*dentry
,
723 const char *name
, const void *value
, size_t size
, int flags
)
725 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
728 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
729 const char *name
, const void *value
, size_t size
, int flags
)
732 static inline int security_inode_getxattr(struct dentry
*dentry
,
738 static inline int security_inode_listxattr(struct dentry
*dentry
)
743 static inline int security_inode_removexattr(struct dentry
*dentry
,
746 return cap_inode_removexattr(dentry
, name
);
749 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
751 return cap_inode_need_killpriv(dentry
);
754 static inline int security_inode_killpriv(struct dentry
*dentry
)
756 return cap_inode_killpriv(dentry
);
759 static inline int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
764 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
769 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
774 static inline void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
779 static inline int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
784 static inline int security_inode_copy_up_xattr(const char *name
)
789 static inline int security_file_permission(struct file
*file
, int mask
)
794 static inline int security_file_alloc(struct file
*file
)
799 static inline void security_file_free(struct file
*file
)
802 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
808 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
814 static inline int security_mmap_addr(unsigned long addr
)
816 return cap_mmap_addr(addr
);
819 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
820 unsigned long reqprot
,
826 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
831 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
837 static inline void security_file_set_fowner(struct file
*file
)
842 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
843 struct fown_struct
*fown
,
849 static inline int security_file_receive(struct file
*file
)
854 static inline int security_file_open(struct file
*file
,
855 const struct cred
*cred
)
860 static inline int security_task_create(unsigned long clone_flags
)
865 static inline int security_task_alloc(struct task_struct
*task
,
866 unsigned long clone_flags
)
871 static inline void security_task_free(struct task_struct
*task
)
874 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
879 static inline void security_cred_free(struct cred
*cred
)
882 static inline int security_prepare_creds(struct cred
*new,
883 const struct cred
*old
,
889 static inline void security_transfer_creds(struct cred
*new,
890 const struct cred
*old
)
894 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
899 static inline int security_kernel_create_files_as(struct cred
*cred
,
905 static inline int security_kernel_module_request(char *kmod_name
)
910 static inline int security_kernel_read_file(struct file
*file
,
911 enum kernel_read_file_id id
)
916 static inline int security_kernel_post_read_file(struct file
*file
,
917 char *buf
, loff_t size
,
918 enum kernel_read_file_id id
)
923 static inline int security_task_fix_setuid(struct cred
*new,
924 const struct cred
*old
,
927 return cap_task_fix_setuid(new, old
, flags
);
930 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
935 static inline int security_task_getpgid(struct task_struct
*p
)
940 static inline int security_task_getsid(struct task_struct
*p
)
945 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
950 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
952 return cap_task_setnice(p
, nice
);
955 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
957 return cap_task_setioprio(p
, ioprio
);
960 static inline int security_task_getioprio(struct task_struct
*p
)
965 static inline int security_task_prlimit(const struct cred
*cred
,
966 const struct cred
*tcred
,
972 static inline int security_task_setrlimit(struct task_struct
*p
,
973 unsigned int resource
,
974 struct rlimit
*new_rlim
)
979 static inline int security_task_setscheduler(struct task_struct
*p
)
981 return cap_task_setscheduler(p
);
984 static inline int security_task_getscheduler(struct task_struct
*p
)
989 static inline int security_task_movememory(struct task_struct
*p
)
994 static inline int security_task_kill(struct task_struct
*p
,
995 struct siginfo
*info
, int sig
,
1001 static inline int security_task_prctl(int option
, unsigned long arg2
,
1006 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
1009 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
1012 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
1018 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1023 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
1028 static inline void security_msg_msg_free(struct msg_msg
*msg
)
1031 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
1036 static inline void security_msg_queue_free(struct msg_queue
*msq
)
1039 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
1045 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
1050 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1051 struct msg_msg
*msg
, int msqflg
)
1056 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1057 struct msg_msg
*msg
,
1058 struct task_struct
*target
,
1059 long type
, int mode
)
1064 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1069 static inline void security_shm_free(struct shmid_kernel
*shp
)
1072 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1078 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1083 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1084 char __user
*shmaddr
, int shmflg
)
1089 static inline int security_sem_alloc(struct sem_array
*sma
)
1094 static inline void security_sem_free(struct sem_array
*sma
)
1097 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1102 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1107 static inline int security_sem_semop(struct sem_array
*sma
,
1108 struct sembuf
*sops
, unsigned nsops
,
1114 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1117 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1122 static inline int security_setprocattr(char *name
, void *value
, size_t size
)
1127 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1132 static inline int security_ismaclabel(const char *name
)
1137 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1142 static inline int security_secctx_to_secid(const char *secdata
,
1149 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1153 static inline void security_inode_invalidate_secctx(struct inode
*inode
)
1157 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1161 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1165 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1169 #endif /* CONFIG_SECURITY */
1171 #ifdef CONFIG_SECURITY_NETWORK
1173 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1174 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1175 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1176 int security_socket_post_create(struct socket
*sock
, int family
,
1177 int type
, int protocol
, int kern
);
1178 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1179 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1180 int security_socket_listen(struct socket
*sock
, int backlog
);
1181 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1182 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1183 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1184 int size
, int flags
);
1185 int security_socket_getsockname(struct socket
*sock
);
1186 int security_socket_getpeername(struct socket
*sock
);
1187 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1188 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1189 int security_socket_shutdown(struct socket
*sock
, int how
);
1190 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1191 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1192 int __user
*optlen
, unsigned len
);
1193 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1194 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1195 void security_sk_free(struct sock
*sk
);
1196 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1197 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1198 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1199 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1200 int security_inet_conn_request(struct sock
*sk
,
1201 struct sk_buff
*skb
, struct request_sock
*req
);
1202 void security_inet_csk_clone(struct sock
*newsk
,
1203 const struct request_sock
*req
);
1204 void security_inet_conn_established(struct sock
*sk
,
1205 struct sk_buff
*skb
);
1206 int security_secmark_relabel_packet(u32 secid
);
1207 void security_secmark_refcount_inc(void);
1208 void security_secmark_refcount_dec(void);
1209 int security_tun_dev_alloc_security(void **security
);
1210 void security_tun_dev_free_security(void *security
);
1211 int security_tun_dev_create(void);
1212 int security_tun_dev_attach_queue(void *security
);
1213 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1214 int security_tun_dev_open(void *security
);
1216 #else /* CONFIG_SECURITY_NETWORK */
1217 static inline int security_unix_stream_connect(struct sock
*sock
,
1224 static inline int security_unix_may_send(struct socket
*sock
,
1225 struct socket
*other
)
1230 static inline int security_socket_create(int family
, int type
,
1231 int protocol
, int kern
)
1236 static inline int security_socket_post_create(struct socket
*sock
,
1239 int protocol
, int kern
)
1244 static inline int security_socket_bind(struct socket
*sock
,
1245 struct sockaddr
*address
,
1251 static inline int security_socket_connect(struct socket
*sock
,
1252 struct sockaddr
*address
,
1258 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1263 static inline int security_socket_accept(struct socket
*sock
,
1264 struct socket
*newsock
)
1269 static inline int security_socket_sendmsg(struct socket
*sock
,
1270 struct msghdr
*msg
, int size
)
1275 static inline int security_socket_recvmsg(struct socket
*sock
,
1276 struct msghdr
*msg
, int size
,
1282 static inline int security_socket_getsockname(struct socket
*sock
)
1287 static inline int security_socket_getpeername(struct socket
*sock
)
1292 static inline int security_socket_getsockopt(struct socket
*sock
,
1293 int level
, int optname
)
1298 static inline int security_socket_setsockopt(struct socket
*sock
,
1299 int level
, int optname
)
1304 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1308 static inline int security_sock_rcv_skb(struct sock
*sk
,
1309 struct sk_buff
*skb
)
1314 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1315 int __user
*optlen
, unsigned len
)
1317 return -ENOPROTOOPT
;
1320 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1322 return -ENOPROTOOPT
;
1325 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1330 static inline void security_sk_free(struct sock
*sk
)
1334 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1338 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1342 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1346 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1350 static inline int security_inet_conn_request(struct sock
*sk
,
1351 struct sk_buff
*skb
, struct request_sock
*req
)
1356 static inline void security_inet_csk_clone(struct sock
*newsk
,
1357 const struct request_sock
*req
)
1361 static inline void security_inet_conn_established(struct sock
*sk
,
1362 struct sk_buff
*skb
)
1366 static inline int security_secmark_relabel_packet(u32 secid
)
1371 static inline void security_secmark_refcount_inc(void)
1375 static inline void security_secmark_refcount_dec(void)
1379 static inline int security_tun_dev_alloc_security(void **security
)
1384 static inline void security_tun_dev_free_security(void *security
)
1388 static inline int security_tun_dev_create(void)
1393 static inline int security_tun_dev_attach_queue(void *security
)
1398 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1403 static inline int security_tun_dev_open(void *security
)
1407 #endif /* CONFIG_SECURITY_NETWORK */
1409 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1411 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1412 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1413 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1414 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1415 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1416 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1417 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1418 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1419 int security_xfrm_state_delete(struct xfrm_state
*x
);
1420 void security_xfrm_state_free(struct xfrm_state
*x
);
1421 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1422 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1423 struct xfrm_policy
*xp
,
1424 const struct flowi
*fl
);
1425 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1426 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1428 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1430 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1431 struct xfrm_user_sec_ctx
*sec_ctx
,
1437 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1442 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1446 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1451 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1452 struct xfrm_user_sec_ctx
*sec_ctx
)
1457 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1458 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1463 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1467 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1472 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1477 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1478 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1483 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1488 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1492 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1494 #ifdef CONFIG_SECURITY_PATH
1495 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
);
1496 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1497 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
);
1498 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1500 int security_path_truncate(const struct path
*path
);
1501 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1502 const char *old_name
);
1503 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
1504 struct dentry
*new_dentry
);
1505 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
1506 const struct path
*new_dir
, struct dentry
*new_dentry
,
1507 unsigned int flags
);
1508 int security_path_chmod(const struct path
*path
, umode_t mode
);
1509 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
);
1510 int security_path_chroot(const struct path
*path
);
1511 #else /* CONFIG_SECURITY_PATH */
1512 static inline int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
1517 static inline int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
,
1523 static inline int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
1528 static inline int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
,
1529 umode_t mode
, unsigned int dev
)
1534 static inline int security_path_truncate(const struct path
*path
)
1539 static inline int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1540 const char *old_name
)
1545 static inline int security_path_link(struct dentry
*old_dentry
,
1546 const struct path
*new_dir
,
1547 struct dentry
*new_dentry
)
1552 static inline int security_path_rename(const struct path
*old_dir
,
1553 struct dentry
*old_dentry
,
1554 const struct path
*new_dir
,
1555 struct dentry
*new_dentry
,
1561 static inline int security_path_chmod(const struct path
*path
, umode_t mode
)
1566 static inline int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
1571 static inline int security_path_chroot(const struct path
*path
)
1575 #endif /* CONFIG_SECURITY_PATH */
1578 #ifdef CONFIG_SECURITY
1580 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1581 void security_key_free(struct key
*key
);
1582 int security_key_permission(key_ref_t key_ref
,
1583 const struct cred
*cred
, unsigned perm
);
1584 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1588 static inline int security_key_alloc(struct key
*key
,
1589 const struct cred
*cred
,
1590 unsigned long flags
)
1595 static inline void security_key_free(struct key
*key
)
1599 static inline int security_key_permission(key_ref_t key_ref
,
1600 const struct cred
*cred
,
1606 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1613 #endif /* CONFIG_KEYS */
1616 #ifdef CONFIG_SECURITY
1617 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1618 int security_audit_rule_known(struct audit_krule
*krule
);
1619 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1620 struct audit_context
*actx
);
1621 void security_audit_rule_free(void *lsmrule
);
1625 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1631 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1636 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1637 void *lsmrule
, struct audit_context
*actx
)
1642 static inline void security_audit_rule_free(void *lsmrule
)
1645 #endif /* CONFIG_SECURITY */
1646 #endif /* CONFIG_AUDIT */
1648 #ifdef CONFIG_SECURITYFS
1650 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1651 struct dentry
*parent
, void *data
,
1652 const struct file_operations
*fops
);
1653 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1654 extern void securityfs_remove(struct dentry
*dentry
);
1656 #else /* CONFIG_SECURITYFS */
1658 static inline struct dentry
*securityfs_create_dir(const char *name
,
1659 struct dentry
*parent
)
1661 return ERR_PTR(-ENODEV
);
1664 static inline struct dentry
*securityfs_create_file(const char *name
,
1666 struct dentry
*parent
,
1668 const struct file_operations
*fops
)
1670 return ERR_PTR(-ENODEV
);
1673 static inline void securityfs_remove(struct dentry
*dentry
)
1678 #ifdef CONFIG_SECURITY
1680 static inline char *alloc_secdata(void)
1682 return (char *)get_zeroed_page(GFP_KERNEL
);
1685 static inline void free_secdata(void *secdata
)
1687 free_page((unsigned long)secdata
);
1692 static inline char *alloc_secdata(void)
1697 static inline void free_secdata(void *secdata
)
1699 #endif /* CONFIG_SECURITY */
1701 #endif /* ! __LINUX_SECURITY_H */