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>
27 #include <linux/slab.h>
28 #include <linux/err.h>
29 #include <linux/string.h>
49 struct file_operations
;
57 /* If capable should audit the security request */
58 #define SECURITY_CAP_NOAUDIT 0
59 #define SECURITY_CAP_AUDIT 1
61 /* LSM Agnostic defines for sb_set_mnt_opts */
62 #define SECURITY_LSM_NATIVE_LABELS 1
66 struct user_namespace
;
69 /* These functions are in security/commoncap.c */
70 extern int cap_capable(const struct cred
*cred
, struct user_namespace
*ns
,
72 extern int cap_settime(const struct timespec
*ts
, const struct timezone
*tz
);
73 extern int cap_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
74 extern int cap_ptrace_traceme(struct task_struct
*parent
);
75 extern int cap_capget(struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
76 extern int cap_capset(struct cred
*new, const struct cred
*old
,
77 const kernel_cap_t
*effective
,
78 const kernel_cap_t
*inheritable
,
79 const kernel_cap_t
*permitted
);
80 extern int cap_bprm_set_creds(struct linux_binprm
*bprm
);
81 extern int cap_bprm_secureexec(struct linux_binprm
*bprm
);
82 extern int cap_inode_setxattr(struct dentry
*dentry
, const char *name
,
83 const void *value
, size_t size
, int flags
);
84 extern int cap_inode_removexattr(struct dentry
*dentry
, const char *name
);
85 extern int cap_inode_need_killpriv(struct dentry
*dentry
);
86 extern int cap_inode_killpriv(struct dentry
*dentry
);
87 extern int cap_mmap_addr(unsigned long addr
);
88 extern int cap_mmap_file(struct file
*file
, unsigned long reqprot
,
89 unsigned long prot
, unsigned long flags
);
90 extern int cap_task_fix_setuid(struct cred
*new, const struct cred
*old
, int flags
);
91 extern int cap_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
92 unsigned long arg4
, unsigned long arg5
);
93 extern int cap_task_setscheduler(struct task_struct
*p
);
94 extern int cap_task_setioprio(struct task_struct
*p
, int ioprio
);
95 extern int cap_task_setnice(struct task_struct
*p
, int nice
);
96 extern int cap_vm_enough_memory(struct mm_struct
*mm
, long pages
);
105 struct xfrm_selector
;
108 struct xfrm_user_sec_ctx
;
112 extern unsigned long mmap_min_addr
;
113 extern unsigned long dac_mmap_min_addr
;
115 #define mmap_min_addr 0UL
116 #define dac_mmap_min_addr 0UL
120 * Values used in the task_security_ops calls
122 /* setuid or setgid, id0 == uid or gid */
123 #define LSM_SETID_ID 1
125 /* setreuid or setregid, id0 == real, id1 == eff */
126 #define LSM_SETID_RE 2
128 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
129 #define LSM_SETID_RES 4
131 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
132 #define LSM_SETID_FS 8
134 /* forward declares to avoid warnings */
138 /* bprm->unsafe reasons */
139 #define LSM_UNSAFE_SHARE 1
140 #define LSM_UNSAFE_PTRACE 2
141 #define LSM_UNSAFE_PTRACE_CAP 4
142 #define LSM_UNSAFE_NO_NEW_PRIVS 8
145 extern int mmap_min_addr_handler(struct ctl_table
*table
, int write
,
146 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
);
149 /* security_inode_init_security callback function to write xattrs */
150 typedef int (*initxattrs
) (struct inode
*inode
,
151 const struct xattr
*xattr_array
, void *fs_data
);
153 #ifdef CONFIG_SECURITY
155 struct security_mnt_opts
{
161 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
163 opts
->mnt_opts
= NULL
;
164 opts
->mnt_opts_flags
= NULL
;
165 opts
->num_mnt_opts
= 0;
168 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
172 for (i
= 0; i
< opts
->num_mnt_opts
; i
++)
173 kfree(opts
->mnt_opts
[i
]);
174 kfree(opts
->mnt_opts
);
175 opts
->mnt_opts
= NULL
;
176 kfree(opts
->mnt_opts_flags
);
177 opts
->mnt_opts_flags
= NULL
;
178 opts
->num_mnt_opts
= 0;
182 extern int security_init(void);
184 /* Security operations */
185 int security_binder_set_context_mgr(struct task_struct
*mgr
);
186 int security_binder_transaction(struct task_struct
*from
,
187 struct task_struct
*to
);
188 int security_binder_transfer_binder(struct task_struct
*from
,
189 struct task_struct
*to
);
190 int security_binder_transfer_file(struct task_struct
*from
,
191 struct task_struct
*to
, struct file
*file
);
192 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
);
193 int security_ptrace_traceme(struct task_struct
*parent
);
194 int security_capget(struct task_struct
*target
,
195 kernel_cap_t
*effective
,
196 kernel_cap_t
*inheritable
,
197 kernel_cap_t
*permitted
);
198 int security_capset(struct cred
*new, const struct cred
*old
,
199 const kernel_cap_t
*effective
,
200 const kernel_cap_t
*inheritable
,
201 const kernel_cap_t
*permitted
);
202 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
204 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
206 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
207 int security_quota_on(struct dentry
*dentry
);
208 int security_syslog(int type
);
209 int security_settime(const struct timespec
*ts
, const struct timezone
*tz
);
210 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
211 int security_bprm_set_creds(struct linux_binprm
*bprm
);
212 int security_bprm_check(struct linux_binprm
*bprm
);
213 void security_bprm_committing_creds(struct linux_binprm
*bprm
);
214 void security_bprm_committed_creds(struct linux_binprm
*bprm
);
215 int security_bprm_secureexec(struct linux_binprm
*bprm
);
216 int security_sb_alloc(struct super_block
*sb
);
217 void security_sb_free(struct super_block
*sb
);
218 int security_sb_copy_data(char *orig
, char *copy
);
219 int security_sb_remount(struct super_block
*sb
, void *data
);
220 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
);
221 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
);
222 int security_sb_statfs(struct dentry
*dentry
);
223 int security_sb_mount(const char *dev_name
, struct path
*path
,
224 const char *type
, unsigned long flags
, void *data
);
225 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
226 int security_sb_pivotroot(struct path
*old_path
, struct path
*new_path
);
227 int security_sb_set_mnt_opts(struct super_block
*sb
,
228 struct security_mnt_opts
*opts
,
229 unsigned long kern_flags
,
230 unsigned long *set_kern_flags
);
231 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
232 struct super_block
*newsb
);
233 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
234 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
235 struct qstr
*name
, void **ctx
,
238 int security_inode_alloc(struct inode
*inode
);
239 void security_inode_free(struct inode
*inode
);
240 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
241 const struct qstr
*qstr
,
242 initxattrs initxattrs
, void *fs_data
);
243 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
244 const struct qstr
*qstr
, const char **name
,
245 void **value
, size_t *len
);
246 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
247 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
248 struct dentry
*new_dentry
);
249 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
250 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
251 const char *old_name
);
252 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
);
253 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
254 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
);
255 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
256 struct inode
*new_dir
, struct dentry
*new_dentry
,
258 int security_inode_readlink(struct dentry
*dentry
);
259 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
261 int security_inode_permission(struct inode
*inode
, int mask
);
262 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
263 int security_inode_getattr(const struct path
*path
);
264 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
265 const void *value
, size_t size
, int flags
);
266 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
267 const void *value
, size_t size
, int flags
);
268 int security_inode_getxattr(struct dentry
*dentry
, const char *name
);
269 int security_inode_listxattr(struct dentry
*dentry
);
270 int security_inode_removexattr(struct dentry
*dentry
, const char *name
);
271 int security_inode_need_killpriv(struct dentry
*dentry
);
272 int security_inode_killpriv(struct dentry
*dentry
);
273 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
274 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
275 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
276 void security_inode_getsecid(struct inode
*inode
, u32
*secid
);
277 int security_file_permission(struct file
*file
, int mask
);
278 int security_file_alloc(struct file
*file
);
279 void security_file_free(struct file
*file
);
280 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
281 int security_mmap_file(struct file
*file
, unsigned long prot
,
282 unsigned long flags
);
283 int security_mmap_addr(unsigned long addr
);
284 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
286 int security_file_lock(struct file
*file
, unsigned int cmd
);
287 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
288 void security_file_set_fowner(struct file
*file
);
289 int security_file_send_sigiotask(struct task_struct
*tsk
,
290 struct fown_struct
*fown
, int sig
);
291 int security_file_receive(struct file
*file
);
292 int security_file_open(struct file
*file
, const struct cred
*cred
);
293 int security_task_create(unsigned long clone_flags
);
294 void security_task_free(struct task_struct
*task
);
295 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
);
296 void security_cred_free(struct cred
*cred
);
297 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
);
298 void security_transfer_creds(struct cred
*new, const struct cred
*old
);
299 int security_kernel_act_as(struct cred
*new, u32 secid
);
300 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
);
301 int security_kernel_fw_from_file(struct file
*file
, char *buf
, size_t size
);
302 int security_kernel_module_request(char *kmod_name
);
303 int security_kernel_module_from_file(struct file
*file
);
304 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
306 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
307 int security_task_getpgid(struct task_struct
*p
);
308 int security_task_getsid(struct task_struct
*p
);
309 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
310 int security_task_setnice(struct task_struct
*p
, int nice
);
311 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
312 int security_task_getioprio(struct task_struct
*p
);
313 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
314 struct rlimit
*new_rlim
);
315 int security_task_setscheduler(struct task_struct
*p
);
316 int security_task_getscheduler(struct task_struct
*p
);
317 int security_task_movememory(struct task_struct
*p
);
318 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
320 int security_task_wait(struct task_struct
*p
);
321 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
322 unsigned long arg4
, unsigned long arg5
);
323 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
324 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
325 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
326 int security_msg_msg_alloc(struct msg_msg
*msg
);
327 void security_msg_msg_free(struct msg_msg
*msg
);
328 int security_msg_queue_alloc(struct msg_queue
*msq
);
329 void security_msg_queue_free(struct msg_queue
*msq
);
330 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
331 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
332 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
333 struct msg_msg
*msg
, int msqflg
);
334 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
335 struct task_struct
*target
, long type
, int mode
);
336 int security_shm_alloc(struct shmid_kernel
*shp
);
337 void security_shm_free(struct shmid_kernel
*shp
);
338 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
339 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
340 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
341 int security_sem_alloc(struct sem_array
*sma
);
342 void security_sem_free(struct sem_array
*sma
);
343 int security_sem_associate(struct sem_array
*sma
, int semflg
);
344 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
345 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
346 unsigned nsops
, int alter
);
347 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
);
348 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
349 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
);
350 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
351 int security_ismaclabel(const char *name
);
352 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
353 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
);
354 void security_release_secctx(char *secdata
, u32 seclen
);
356 void security_inode_invalidate_secctx(struct inode
*inode
);
357 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
358 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
359 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
360 #else /* CONFIG_SECURITY */
361 struct security_mnt_opts
{
364 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
368 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
373 * This is the default capabilities functionality. Most of these functions
374 * are just stubbed out, but a few must call the proper capable code.
377 static inline int security_init(void)
382 static inline int security_binder_set_context_mgr(struct task_struct
*mgr
)
387 static inline int security_binder_transaction(struct task_struct
*from
,
388 struct task_struct
*to
)
393 static inline int security_binder_transfer_binder(struct task_struct
*from
,
394 struct task_struct
*to
)
399 static inline int security_binder_transfer_file(struct task_struct
*from
,
400 struct task_struct
*to
,
406 static inline int security_ptrace_access_check(struct task_struct
*child
,
409 return cap_ptrace_access_check(child
, mode
);
412 static inline int security_ptrace_traceme(struct task_struct
*parent
)
414 return cap_ptrace_traceme(parent
);
417 static inline int security_capget(struct task_struct
*target
,
418 kernel_cap_t
*effective
,
419 kernel_cap_t
*inheritable
,
420 kernel_cap_t
*permitted
)
422 return cap_capget(target
, effective
, inheritable
, permitted
);
425 static inline int security_capset(struct cred
*new,
426 const struct cred
*old
,
427 const kernel_cap_t
*effective
,
428 const kernel_cap_t
*inheritable
,
429 const kernel_cap_t
*permitted
)
431 return cap_capset(new, old
, effective
, inheritable
, permitted
);
434 static inline int security_capable(const struct cred
*cred
,
435 struct user_namespace
*ns
, int cap
)
437 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
440 static inline int security_capable_noaudit(const struct cred
*cred
,
441 struct user_namespace
*ns
, int cap
) {
442 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
445 static inline int security_quotactl(int cmds
, int type
, int id
,
446 struct super_block
*sb
)
451 static inline int security_quota_on(struct dentry
*dentry
)
456 static inline int security_syslog(int type
)
461 static inline int security_settime(const struct timespec
*ts
,
462 const struct timezone
*tz
)
464 return cap_settime(ts
, tz
);
467 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
469 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
472 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
474 return cap_bprm_set_creds(bprm
);
477 static inline int security_bprm_check(struct linux_binprm
*bprm
)
482 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
486 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
490 static inline int security_bprm_secureexec(struct linux_binprm
*bprm
)
492 return cap_bprm_secureexec(bprm
);
495 static inline int security_sb_alloc(struct super_block
*sb
)
500 static inline void security_sb_free(struct super_block
*sb
)
503 static inline int security_sb_copy_data(char *orig
, char *copy
)
508 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
513 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
518 static inline int security_sb_show_options(struct seq_file
*m
,
519 struct super_block
*sb
)
524 static inline int security_sb_statfs(struct dentry
*dentry
)
529 static inline int security_sb_mount(const char *dev_name
, struct path
*path
,
530 const char *type
, unsigned long flags
,
536 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
541 static inline int security_sb_pivotroot(struct path
*old_path
,
542 struct path
*new_path
)
547 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
548 struct security_mnt_opts
*opts
,
549 unsigned long kern_flags
,
550 unsigned long *set_kern_flags
)
555 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
556 struct super_block
*newsb
)
561 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
566 static inline int security_inode_alloc(struct inode
*inode
)
571 static inline void security_inode_free(struct inode
*inode
)
574 static inline int security_dentry_init_security(struct dentry
*dentry
,
584 static inline int security_inode_init_security(struct inode
*inode
,
586 const struct qstr
*qstr
,
587 const initxattrs xattrs
,
593 static inline int security_old_inode_init_security(struct inode
*inode
,
595 const struct qstr
*qstr
,
597 void **value
, size_t *len
)
602 static inline int security_inode_create(struct inode
*dir
,
603 struct dentry
*dentry
,
609 static inline int security_inode_link(struct dentry
*old_dentry
,
611 struct dentry
*new_dentry
)
616 static inline int security_inode_unlink(struct inode
*dir
,
617 struct dentry
*dentry
)
622 static inline int security_inode_symlink(struct inode
*dir
,
623 struct dentry
*dentry
,
624 const char *old_name
)
629 static inline int security_inode_mkdir(struct inode
*dir
,
630 struct dentry
*dentry
,
636 static inline int security_inode_rmdir(struct inode
*dir
,
637 struct dentry
*dentry
)
642 static inline int security_inode_mknod(struct inode
*dir
,
643 struct dentry
*dentry
,
649 static inline int security_inode_rename(struct inode
*old_dir
,
650 struct dentry
*old_dentry
,
651 struct inode
*new_dir
,
652 struct dentry
*new_dentry
,
658 static inline int security_inode_readlink(struct dentry
*dentry
)
663 static inline int security_inode_follow_link(struct dentry
*dentry
,
670 static inline int security_inode_permission(struct inode
*inode
, int mask
)
675 static inline int security_inode_setattr(struct dentry
*dentry
,
681 static inline int security_inode_getattr(const struct path
*path
)
686 static inline int security_inode_setxattr(struct dentry
*dentry
,
687 const char *name
, const void *value
, size_t size
, int flags
)
689 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
692 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
693 const char *name
, const void *value
, size_t size
, int flags
)
696 static inline int security_inode_getxattr(struct dentry
*dentry
,
702 static inline int security_inode_listxattr(struct dentry
*dentry
)
707 static inline int security_inode_removexattr(struct dentry
*dentry
,
710 return cap_inode_removexattr(dentry
, name
);
713 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
715 return cap_inode_need_killpriv(dentry
);
718 static inline int security_inode_killpriv(struct dentry
*dentry
)
720 return cap_inode_killpriv(dentry
);
723 static inline int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
728 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
733 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
738 static inline void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
743 static inline int security_file_permission(struct file
*file
, int mask
)
748 static inline int security_file_alloc(struct file
*file
)
753 static inline void security_file_free(struct file
*file
)
756 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
762 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
768 static inline int security_mmap_addr(unsigned long addr
)
770 return cap_mmap_addr(addr
);
773 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
774 unsigned long reqprot
,
780 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
785 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
791 static inline void security_file_set_fowner(struct file
*file
)
796 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
797 struct fown_struct
*fown
,
803 static inline int security_file_receive(struct file
*file
)
808 static inline int security_file_open(struct file
*file
,
809 const struct cred
*cred
)
814 static inline int security_task_create(unsigned long clone_flags
)
819 static inline void security_task_free(struct task_struct
*task
)
822 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
827 static inline void security_cred_free(struct cred
*cred
)
830 static inline int security_prepare_creds(struct cred
*new,
831 const struct cred
*old
,
837 static inline void security_transfer_creds(struct cred
*new,
838 const struct cred
*old
)
842 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
847 static inline int security_kernel_create_files_as(struct cred
*cred
,
853 static inline int security_kernel_fw_from_file(struct file
*file
,
854 char *buf
, size_t size
)
859 static inline int security_kernel_module_request(char *kmod_name
)
864 static inline int security_kernel_module_from_file(struct file
*file
)
869 static inline int security_task_fix_setuid(struct cred
*new,
870 const struct cred
*old
,
873 return cap_task_fix_setuid(new, old
, flags
);
876 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
881 static inline int security_task_getpgid(struct task_struct
*p
)
886 static inline int security_task_getsid(struct task_struct
*p
)
891 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
896 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
898 return cap_task_setnice(p
, nice
);
901 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
903 return cap_task_setioprio(p
, ioprio
);
906 static inline int security_task_getioprio(struct task_struct
*p
)
911 static inline int security_task_setrlimit(struct task_struct
*p
,
912 unsigned int resource
,
913 struct rlimit
*new_rlim
)
918 static inline int security_task_setscheduler(struct task_struct
*p
)
920 return cap_task_setscheduler(p
);
923 static inline int security_task_getscheduler(struct task_struct
*p
)
928 static inline int security_task_movememory(struct task_struct
*p
)
933 static inline int security_task_kill(struct task_struct
*p
,
934 struct siginfo
*info
, int sig
,
940 static inline int security_task_wait(struct task_struct
*p
)
945 static inline int security_task_prctl(int option
, unsigned long arg2
,
950 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
953 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
956 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
962 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
967 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
972 static inline void security_msg_msg_free(struct msg_msg
*msg
)
975 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
980 static inline void security_msg_queue_free(struct msg_queue
*msq
)
983 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
989 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
994 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
995 struct msg_msg
*msg
, int msqflg
)
1000 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1001 struct msg_msg
*msg
,
1002 struct task_struct
*target
,
1003 long type
, int mode
)
1008 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1013 static inline void security_shm_free(struct shmid_kernel
*shp
)
1016 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1022 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1027 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1028 char __user
*shmaddr
, int shmflg
)
1033 static inline int security_sem_alloc(struct sem_array
*sma
)
1038 static inline void security_sem_free(struct sem_array
*sma
)
1041 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1046 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1051 static inline int security_sem_semop(struct sem_array
*sma
,
1052 struct sembuf
*sops
, unsigned nsops
,
1058 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1061 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1066 static inline int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1071 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1076 static inline int security_ismaclabel(const char *name
)
1081 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1086 static inline int security_secctx_to_secid(const char *secdata
,
1093 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1097 static inline void security_inode_invalidate_secctx(struct inode
*inode
)
1101 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1105 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1109 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1113 #endif /* CONFIG_SECURITY */
1115 #ifdef CONFIG_SECURITY_NETWORK
1117 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1118 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1119 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1120 int security_socket_post_create(struct socket
*sock
, int family
,
1121 int type
, int protocol
, int kern
);
1122 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1123 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1124 int security_socket_listen(struct socket
*sock
, int backlog
);
1125 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1126 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1127 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1128 int size
, int flags
);
1129 int security_socket_getsockname(struct socket
*sock
);
1130 int security_socket_getpeername(struct socket
*sock
);
1131 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1132 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1133 int security_socket_shutdown(struct socket
*sock
, int how
);
1134 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1135 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1136 int __user
*optlen
, unsigned len
);
1137 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1138 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1139 void security_sk_free(struct sock
*sk
);
1140 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1141 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1142 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1143 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1144 int security_inet_conn_request(struct sock
*sk
,
1145 struct sk_buff
*skb
, struct request_sock
*req
);
1146 void security_inet_csk_clone(struct sock
*newsk
,
1147 const struct request_sock
*req
);
1148 void security_inet_conn_established(struct sock
*sk
,
1149 struct sk_buff
*skb
);
1150 int security_secmark_relabel_packet(u32 secid
);
1151 void security_secmark_refcount_inc(void);
1152 void security_secmark_refcount_dec(void);
1153 int security_tun_dev_alloc_security(void **security
);
1154 void security_tun_dev_free_security(void *security
);
1155 int security_tun_dev_create(void);
1156 int security_tun_dev_attach_queue(void *security
);
1157 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1158 int security_tun_dev_open(void *security
);
1160 #else /* CONFIG_SECURITY_NETWORK */
1161 static inline int security_unix_stream_connect(struct sock
*sock
,
1168 static inline int security_unix_may_send(struct socket
*sock
,
1169 struct socket
*other
)
1174 static inline int security_socket_create(int family
, int type
,
1175 int protocol
, int kern
)
1180 static inline int security_socket_post_create(struct socket
*sock
,
1183 int protocol
, int kern
)
1188 static inline int security_socket_bind(struct socket
*sock
,
1189 struct sockaddr
*address
,
1195 static inline int security_socket_connect(struct socket
*sock
,
1196 struct sockaddr
*address
,
1202 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1207 static inline int security_socket_accept(struct socket
*sock
,
1208 struct socket
*newsock
)
1213 static inline int security_socket_sendmsg(struct socket
*sock
,
1214 struct msghdr
*msg
, int size
)
1219 static inline int security_socket_recvmsg(struct socket
*sock
,
1220 struct msghdr
*msg
, int size
,
1226 static inline int security_socket_getsockname(struct socket
*sock
)
1231 static inline int security_socket_getpeername(struct socket
*sock
)
1236 static inline int security_socket_getsockopt(struct socket
*sock
,
1237 int level
, int optname
)
1242 static inline int security_socket_setsockopt(struct socket
*sock
,
1243 int level
, int optname
)
1248 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1252 static inline int security_sock_rcv_skb(struct sock
*sk
,
1253 struct sk_buff
*skb
)
1258 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1259 int __user
*optlen
, unsigned len
)
1261 return -ENOPROTOOPT
;
1264 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1266 return -ENOPROTOOPT
;
1269 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1274 static inline void security_sk_free(struct sock
*sk
)
1278 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1282 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1286 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1290 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1294 static inline int security_inet_conn_request(struct sock
*sk
,
1295 struct sk_buff
*skb
, struct request_sock
*req
)
1300 static inline void security_inet_csk_clone(struct sock
*newsk
,
1301 const struct request_sock
*req
)
1305 static inline void security_inet_conn_established(struct sock
*sk
,
1306 struct sk_buff
*skb
)
1310 static inline int security_secmark_relabel_packet(u32 secid
)
1315 static inline void security_secmark_refcount_inc(void)
1319 static inline void security_secmark_refcount_dec(void)
1323 static inline int security_tun_dev_alloc_security(void **security
)
1328 static inline void security_tun_dev_free_security(void *security
)
1332 static inline int security_tun_dev_create(void)
1337 static inline int security_tun_dev_attach_queue(void *security
)
1342 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1347 static inline int security_tun_dev_open(void *security
)
1351 #endif /* CONFIG_SECURITY_NETWORK */
1353 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1355 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1356 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1357 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1358 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1359 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1360 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1361 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1362 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1363 int security_xfrm_state_delete(struct xfrm_state
*x
);
1364 void security_xfrm_state_free(struct xfrm_state
*x
);
1365 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1366 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1367 struct xfrm_policy
*xp
,
1368 const struct flowi
*fl
);
1369 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1370 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1372 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1374 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1375 struct xfrm_user_sec_ctx
*sec_ctx
,
1381 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1386 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1390 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1395 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1396 struct xfrm_user_sec_ctx
*sec_ctx
)
1401 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1402 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1407 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1411 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1416 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1421 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1422 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1427 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1432 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1436 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1438 #ifdef CONFIG_SECURITY_PATH
1439 int security_path_unlink(struct path
*dir
, struct dentry
*dentry
);
1440 int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1441 int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
);
1442 int security_path_mknod(struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1444 int security_path_truncate(struct path
*path
);
1445 int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
1446 const char *old_name
);
1447 int security_path_link(struct dentry
*old_dentry
, struct path
*new_dir
,
1448 struct dentry
*new_dentry
);
1449 int security_path_rename(struct path
*old_dir
, struct dentry
*old_dentry
,
1450 struct path
*new_dir
, struct dentry
*new_dentry
,
1451 unsigned int flags
);
1452 int security_path_chmod(struct path
*path
, umode_t mode
);
1453 int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
);
1454 int security_path_chroot(struct path
*path
);
1455 #else /* CONFIG_SECURITY_PATH */
1456 static inline int security_path_unlink(struct path
*dir
, struct dentry
*dentry
)
1461 static inline int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
,
1467 static inline int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
)
1472 static inline int security_path_mknod(struct path
*dir
, struct dentry
*dentry
,
1473 umode_t mode
, unsigned int dev
)
1478 static inline int security_path_truncate(struct path
*path
)
1483 static inline int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
1484 const char *old_name
)
1489 static inline int security_path_link(struct dentry
*old_dentry
,
1490 struct path
*new_dir
,
1491 struct dentry
*new_dentry
)
1496 static inline int security_path_rename(struct path
*old_dir
,
1497 struct dentry
*old_dentry
,
1498 struct path
*new_dir
,
1499 struct dentry
*new_dentry
,
1505 static inline int security_path_chmod(struct path
*path
, umode_t mode
)
1510 static inline int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
)
1515 static inline int security_path_chroot(struct path
*path
)
1519 #endif /* CONFIG_SECURITY_PATH */
1522 #ifdef CONFIG_SECURITY
1524 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1525 void security_key_free(struct key
*key
);
1526 int security_key_permission(key_ref_t key_ref
,
1527 const struct cred
*cred
, unsigned perm
);
1528 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1532 static inline int security_key_alloc(struct key
*key
,
1533 const struct cred
*cred
,
1534 unsigned long flags
)
1539 static inline void security_key_free(struct key
*key
)
1543 static inline int security_key_permission(key_ref_t key_ref
,
1544 const struct cred
*cred
,
1550 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1557 #endif /* CONFIG_KEYS */
1560 #ifdef CONFIG_SECURITY
1561 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1562 int security_audit_rule_known(struct audit_krule
*krule
);
1563 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1564 struct audit_context
*actx
);
1565 void security_audit_rule_free(void *lsmrule
);
1569 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1575 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1580 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1581 void *lsmrule
, struct audit_context
*actx
)
1586 static inline void security_audit_rule_free(void *lsmrule
)
1589 #endif /* CONFIG_SECURITY */
1590 #endif /* CONFIG_AUDIT */
1592 #ifdef CONFIG_SECURITYFS
1594 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1595 struct dentry
*parent
, void *data
,
1596 const struct file_operations
*fops
);
1597 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1598 extern void securityfs_remove(struct dentry
*dentry
);
1600 #else /* CONFIG_SECURITYFS */
1602 static inline struct dentry
*securityfs_create_dir(const char *name
,
1603 struct dentry
*parent
)
1605 return ERR_PTR(-ENODEV
);
1608 static inline struct dentry
*securityfs_create_file(const char *name
,
1610 struct dentry
*parent
,
1612 const struct file_operations
*fops
)
1614 return ERR_PTR(-ENODEV
);
1617 static inline void securityfs_remove(struct dentry
*dentry
)
1622 #ifdef CONFIG_SECURITY
1624 static inline char *alloc_secdata(void)
1626 return (char *)get_zeroed_page(GFP_KERNEL
);
1629 static inline void free_secdata(void *secdata
)
1631 free_page((unsigned long)secdata
);
1636 static inline char *alloc_secdata(void)
1641 static inline void free_secdata(void *secdata
)
1643 #endif /* CONFIG_SECURITY */
1645 #endif /* ! __LINUX_SECURITY_H */
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