]>
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>
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(const 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(const 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 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
);
357 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
);
358 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
);
359 #else /* CONFIG_SECURITY */
360 struct security_mnt_opts
{
363 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
367 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
372 * This is the default capabilities functionality. Most of these functions
373 * are just stubbed out, but a few must call the proper capable code.
376 static inline int security_init(void)
381 static inline int security_binder_set_context_mgr(struct task_struct
*mgr
)
386 static inline int security_binder_transaction(struct task_struct
*from
,
387 struct task_struct
*to
)
392 static inline int security_binder_transfer_binder(struct task_struct
*from
,
393 struct task_struct
*to
)
398 static inline int security_binder_transfer_file(struct task_struct
*from
,
399 struct task_struct
*to
,
405 static inline int security_ptrace_access_check(struct task_struct
*child
,
408 return cap_ptrace_access_check(child
, mode
);
411 static inline int security_ptrace_traceme(struct task_struct
*parent
)
413 return cap_ptrace_traceme(parent
);
416 static inline int security_capget(struct task_struct
*target
,
417 kernel_cap_t
*effective
,
418 kernel_cap_t
*inheritable
,
419 kernel_cap_t
*permitted
)
421 return cap_capget(target
, effective
, inheritable
, permitted
);
424 static inline int security_capset(struct cred
*new,
425 const struct cred
*old
,
426 const kernel_cap_t
*effective
,
427 const kernel_cap_t
*inheritable
,
428 const kernel_cap_t
*permitted
)
430 return cap_capset(new, old
, effective
, inheritable
, permitted
);
433 static inline int security_capable(const struct cred
*cred
,
434 struct user_namespace
*ns
, int cap
)
436 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
439 static inline int security_capable_noaudit(const struct cred
*cred
,
440 struct user_namespace
*ns
, int cap
) {
441 return cap_capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
444 static inline int security_quotactl(int cmds
, int type
, int id
,
445 struct super_block
*sb
)
450 static inline int security_quota_on(struct dentry
*dentry
)
455 static inline int security_syslog(int type
)
460 static inline int security_settime(const struct timespec
*ts
,
461 const struct timezone
*tz
)
463 return cap_settime(ts
, tz
);
466 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
468 return __vm_enough_memory(mm
, pages
, cap_vm_enough_memory(mm
, pages
));
471 static inline int security_bprm_set_creds(struct linux_binprm
*bprm
)
473 return cap_bprm_set_creds(bprm
);
476 static inline int security_bprm_check(struct linux_binprm
*bprm
)
481 static inline void security_bprm_committing_creds(struct linux_binprm
*bprm
)
485 static inline void security_bprm_committed_creds(struct linux_binprm
*bprm
)
489 static inline int security_bprm_secureexec(struct linux_binprm
*bprm
)
491 return cap_bprm_secureexec(bprm
);
494 static inline int security_sb_alloc(struct super_block
*sb
)
499 static inline void security_sb_free(struct super_block
*sb
)
502 static inline int security_sb_copy_data(char *orig
, char *copy
)
507 static inline int security_sb_remount(struct super_block
*sb
, void *data
)
512 static inline int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
517 static inline int security_sb_show_options(struct seq_file
*m
,
518 struct super_block
*sb
)
523 static inline int security_sb_statfs(struct dentry
*dentry
)
528 static inline int security_sb_mount(const char *dev_name
, struct path
*path
,
529 const char *type
, unsigned long flags
,
535 static inline int security_sb_umount(struct vfsmount
*mnt
, int flags
)
540 static inline int security_sb_pivotroot(struct path
*old_path
,
541 struct path
*new_path
)
546 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
547 struct security_mnt_opts
*opts
,
548 unsigned long kern_flags
,
549 unsigned long *set_kern_flags
)
554 static inline int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
555 struct super_block
*newsb
)
560 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
565 static inline int security_inode_alloc(struct inode
*inode
)
570 static inline void security_inode_free(struct inode
*inode
)
573 static inline int security_dentry_init_security(struct dentry
*dentry
,
583 static inline int security_inode_init_security(struct inode
*inode
,
585 const struct qstr
*qstr
,
586 const initxattrs xattrs
,
592 static inline int security_old_inode_init_security(struct inode
*inode
,
594 const struct qstr
*qstr
,
596 void **value
, size_t *len
)
601 static inline int security_inode_create(struct inode
*dir
,
602 struct dentry
*dentry
,
608 static inline int security_inode_link(struct dentry
*old_dentry
,
610 struct dentry
*new_dentry
)
615 static inline int security_inode_unlink(struct inode
*dir
,
616 struct dentry
*dentry
)
621 static inline int security_inode_symlink(struct inode
*dir
,
622 struct dentry
*dentry
,
623 const char *old_name
)
628 static inline int security_inode_mkdir(struct inode
*dir
,
629 struct dentry
*dentry
,
635 static inline int security_inode_rmdir(struct inode
*dir
,
636 struct dentry
*dentry
)
641 static inline int security_inode_mknod(struct inode
*dir
,
642 struct dentry
*dentry
,
648 static inline int security_inode_rename(struct inode
*old_dir
,
649 struct dentry
*old_dentry
,
650 struct inode
*new_dir
,
651 struct dentry
*new_dentry
,
657 static inline int security_inode_readlink(struct dentry
*dentry
)
662 static inline int security_inode_follow_link(struct dentry
*dentry
,
669 static inline int security_inode_permission(struct inode
*inode
, int mask
)
674 static inline int security_inode_setattr(struct dentry
*dentry
,
680 static inline int security_inode_getattr(const struct path
*path
)
685 static inline int security_inode_setxattr(struct dentry
*dentry
,
686 const char *name
, const void *value
, size_t size
, int flags
)
688 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
691 static inline void security_inode_post_setxattr(struct dentry
*dentry
,
692 const char *name
, const void *value
, size_t size
, int flags
)
695 static inline int security_inode_getxattr(struct dentry
*dentry
,
701 static inline int security_inode_listxattr(struct dentry
*dentry
)
706 static inline int security_inode_removexattr(struct dentry
*dentry
,
709 return cap_inode_removexattr(dentry
, name
);
712 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
714 return cap_inode_need_killpriv(dentry
);
717 static inline int security_inode_killpriv(struct dentry
*dentry
)
719 return cap_inode_killpriv(dentry
);
722 static inline int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
727 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
732 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
737 static inline void security_inode_getsecid(const struct inode
*inode
, u32
*secid
)
742 static inline int security_file_permission(struct file
*file
, int mask
)
747 static inline int security_file_alloc(struct file
*file
)
752 static inline void security_file_free(struct file
*file
)
755 static inline int security_file_ioctl(struct file
*file
, unsigned int cmd
,
761 static inline int security_mmap_file(struct file
*file
, unsigned long prot
,
767 static inline int security_mmap_addr(unsigned long addr
)
769 return cap_mmap_addr(addr
);
772 static inline int security_file_mprotect(struct vm_area_struct
*vma
,
773 unsigned long reqprot
,
779 static inline int security_file_lock(struct file
*file
, unsigned int cmd
)
784 static inline int security_file_fcntl(struct file
*file
, unsigned int cmd
,
790 static inline void security_file_set_fowner(struct file
*file
)
795 static inline int security_file_send_sigiotask(struct task_struct
*tsk
,
796 struct fown_struct
*fown
,
802 static inline int security_file_receive(struct file
*file
)
807 static inline int security_file_open(struct file
*file
,
808 const struct cred
*cred
)
813 static inline int security_task_create(unsigned long clone_flags
)
818 static inline void security_task_free(struct task_struct
*task
)
821 static inline int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
826 static inline void security_cred_free(struct cred
*cred
)
829 static inline int security_prepare_creds(struct cred
*new,
830 const struct cred
*old
,
836 static inline void security_transfer_creds(struct cred
*new,
837 const struct cred
*old
)
841 static inline int security_kernel_act_as(struct cred
*cred
, u32 secid
)
846 static inline int security_kernel_create_files_as(struct cred
*cred
,
852 static inline int security_kernel_fw_from_file(struct file
*file
,
853 char *buf
, size_t size
)
858 static inline int security_kernel_module_request(char *kmod_name
)
863 static inline int security_kernel_module_from_file(struct file
*file
)
868 static inline int security_task_fix_setuid(struct cred
*new,
869 const struct cred
*old
,
872 return cap_task_fix_setuid(new, old
, flags
);
875 static inline int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
880 static inline int security_task_getpgid(struct task_struct
*p
)
885 static inline int security_task_getsid(struct task_struct
*p
)
890 static inline void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
895 static inline int security_task_setnice(struct task_struct
*p
, int nice
)
897 return cap_task_setnice(p
, nice
);
900 static inline int security_task_setioprio(struct task_struct
*p
, int ioprio
)
902 return cap_task_setioprio(p
, ioprio
);
905 static inline int security_task_getioprio(struct task_struct
*p
)
910 static inline int security_task_setrlimit(struct task_struct
*p
,
911 unsigned int resource
,
912 struct rlimit
*new_rlim
)
917 static inline int security_task_setscheduler(struct task_struct
*p
)
919 return cap_task_setscheduler(p
);
922 static inline int security_task_getscheduler(struct task_struct
*p
)
927 static inline int security_task_movememory(struct task_struct
*p
)
932 static inline int security_task_kill(struct task_struct
*p
,
933 struct siginfo
*info
, int sig
,
939 static inline int security_task_wait(struct task_struct
*p
)
944 static inline int security_task_prctl(int option
, unsigned long arg2
,
949 return cap_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
952 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
955 static inline int security_ipc_permission(struct kern_ipc_perm
*ipcp
,
961 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
966 static inline int security_msg_msg_alloc(struct msg_msg
*msg
)
971 static inline void security_msg_msg_free(struct msg_msg
*msg
)
974 static inline int security_msg_queue_alloc(struct msg_queue
*msq
)
979 static inline void security_msg_queue_free(struct msg_queue
*msq
)
982 static inline int security_msg_queue_associate(struct msg_queue
*msq
,
988 static inline int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
993 static inline int security_msg_queue_msgsnd(struct msg_queue
*msq
,
994 struct msg_msg
*msg
, int msqflg
)
999 static inline int security_msg_queue_msgrcv(struct msg_queue
*msq
,
1000 struct msg_msg
*msg
,
1001 struct task_struct
*target
,
1002 long type
, int mode
)
1007 static inline int security_shm_alloc(struct shmid_kernel
*shp
)
1012 static inline void security_shm_free(struct shmid_kernel
*shp
)
1015 static inline int security_shm_associate(struct shmid_kernel
*shp
,
1021 static inline int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1026 static inline int security_shm_shmat(struct shmid_kernel
*shp
,
1027 char __user
*shmaddr
, int shmflg
)
1032 static inline int security_sem_alloc(struct sem_array
*sma
)
1037 static inline void security_sem_free(struct sem_array
*sma
)
1040 static inline int security_sem_associate(struct sem_array
*sma
, int semflg
)
1045 static inline int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1050 static inline int security_sem_semop(struct sem_array
*sma
,
1051 struct sembuf
*sops
, unsigned nsops
,
1057 static inline void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1060 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1065 static inline int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1070 static inline int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1075 static inline int security_ismaclabel(const char *name
)
1080 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1085 static inline int security_secctx_to_secid(const char *secdata
,
1092 static inline void security_release_secctx(char *secdata
, u32 seclen
)
1096 static inline int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1100 static inline int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1104 static inline int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1108 #endif /* CONFIG_SECURITY */
1110 #ifdef CONFIG_SECURITY_NETWORK
1112 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
);
1113 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
1114 int security_socket_create(int family
, int type
, int protocol
, int kern
);
1115 int security_socket_post_create(struct socket
*sock
, int family
,
1116 int type
, int protocol
, int kern
);
1117 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1118 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
1119 int security_socket_listen(struct socket
*sock
, int backlog
);
1120 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
1121 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
1122 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1123 int size
, int flags
);
1124 int security_socket_getsockname(struct socket
*sock
);
1125 int security_socket_getpeername(struct socket
*sock
);
1126 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
1127 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
1128 int security_socket_shutdown(struct socket
*sock
, int how
);
1129 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
1130 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1131 int __user
*optlen
, unsigned len
);
1132 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1133 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
1134 void security_sk_free(struct sock
*sk
);
1135 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
1136 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
1137 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
1138 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
1139 int security_inet_conn_request(struct sock
*sk
,
1140 struct sk_buff
*skb
, struct request_sock
*req
);
1141 void security_inet_csk_clone(struct sock
*newsk
,
1142 const struct request_sock
*req
);
1143 void security_inet_conn_established(struct sock
*sk
,
1144 struct sk_buff
*skb
);
1145 int security_secmark_relabel_packet(u32 secid
);
1146 void security_secmark_refcount_inc(void);
1147 void security_secmark_refcount_dec(void);
1148 int security_tun_dev_alloc_security(void **security
);
1149 void security_tun_dev_free_security(void *security
);
1150 int security_tun_dev_create(void);
1151 int security_tun_dev_attach_queue(void *security
);
1152 int security_tun_dev_attach(struct sock
*sk
, void *security
);
1153 int security_tun_dev_open(void *security
);
1155 #else /* CONFIG_SECURITY_NETWORK */
1156 static inline int security_unix_stream_connect(struct sock
*sock
,
1163 static inline int security_unix_may_send(struct socket
*sock
,
1164 struct socket
*other
)
1169 static inline int security_socket_create(int family
, int type
,
1170 int protocol
, int kern
)
1175 static inline int security_socket_post_create(struct socket
*sock
,
1178 int protocol
, int kern
)
1183 static inline int security_socket_bind(struct socket
*sock
,
1184 struct sockaddr
*address
,
1190 static inline int security_socket_connect(struct socket
*sock
,
1191 struct sockaddr
*address
,
1197 static inline int security_socket_listen(struct socket
*sock
, int backlog
)
1202 static inline int security_socket_accept(struct socket
*sock
,
1203 struct socket
*newsock
)
1208 static inline int security_socket_sendmsg(struct socket
*sock
,
1209 struct msghdr
*msg
, int size
)
1214 static inline int security_socket_recvmsg(struct socket
*sock
,
1215 struct msghdr
*msg
, int size
,
1221 static inline int security_socket_getsockname(struct socket
*sock
)
1226 static inline int security_socket_getpeername(struct socket
*sock
)
1231 static inline int security_socket_getsockopt(struct socket
*sock
,
1232 int level
, int optname
)
1237 static inline int security_socket_setsockopt(struct socket
*sock
,
1238 int level
, int optname
)
1243 static inline int security_socket_shutdown(struct socket
*sock
, int how
)
1247 static inline int security_sock_rcv_skb(struct sock
*sk
,
1248 struct sk_buff
*skb
)
1253 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1254 int __user
*optlen
, unsigned len
)
1256 return -ENOPROTOOPT
;
1259 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1261 return -ENOPROTOOPT
;
1264 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1269 static inline void security_sk_free(struct sock
*sk
)
1273 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1277 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1281 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1285 static inline void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1289 static inline int security_inet_conn_request(struct sock
*sk
,
1290 struct sk_buff
*skb
, struct request_sock
*req
)
1295 static inline void security_inet_csk_clone(struct sock
*newsk
,
1296 const struct request_sock
*req
)
1300 static inline void security_inet_conn_established(struct sock
*sk
,
1301 struct sk_buff
*skb
)
1305 static inline int security_secmark_relabel_packet(u32 secid
)
1310 static inline void security_secmark_refcount_inc(void)
1314 static inline void security_secmark_refcount_dec(void)
1318 static inline int security_tun_dev_alloc_security(void **security
)
1323 static inline void security_tun_dev_free_security(void *security
)
1327 static inline int security_tun_dev_create(void)
1332 static inline int security_tun_dev_attach_queue(void *security
)
1337 static inline int security_tun_dev_attach(struct sock
*sk
, void *security
)
1342 static inline int security_tun_dev_open(void *security
)
1346 #endif /* CONFIG_SECURITY_NETWORK */
1348 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1350 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1351 struct xfrm_user_sec_ctx
*sec_ctx
, gfp_t gfp
);
1352 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
, struct xfrm_sec_ctx
**new_ctxp
);
1353 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
);
1354 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
);
1355 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
1356 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1357 struct xfrm_sec_ctx
*polsec
, u32 secid
);
1358 int security_xfrm_state_delete(struct xfrm_state
*x
);
1359 void security_xfrm_state_free(struct xfrm_state
*x
);
1360 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
);
1361 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1362 struct xfrm_policy
*xp
,
1363 const struct flowi
*fl
);
1364 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
1365 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
1367 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1369 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1370 struct xfrm_user_sec_ctx
*sec_ctx
,
1376 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old
, struct xfrm_sec_ctx
**new_ctxp
)
1381 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1385 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1390 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
1391 struct xfrm_user_sec_ctx
*sec_ctx
)
1396 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1397 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1402 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
1406 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
1411 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1416 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1417 struct xfrm_policy
*xp
, const struct flowi
*fl
)
1422 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1427 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1431 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1433 #ifdef CONFIG_SECURITY_PATH
1434 int security_path_unlink(struct path
*dir
, struct dentry
*dentry
);
1435 int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
, umode_t mode
);
1436 int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
);
1437 int security_path_mknod(struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1439 int security_path_truncate(struct path
*path
);
1440 int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
1441 const char *old_name
);
1442 int security_path_link(struct dentry
*old_dentry
, struct path
*new_dir
,
1443 struct dentry
*new_dentry
);
1444 int security_path_rename(struct path
*old_dir
, struct dentry
*old_dentry
,
1445 struct path
*new_dir
, struct dentry
*new_dentry
,
1446 unsigned int flags
);
1447 int security_path_chmod(struct path
*path
, umode_t mode
);
1448 int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
);
1449 int security_path_chroot(struct path
*path
);
1450 #else /* CONFIG_SECURITY_PATH */
1451 static inline int security_path_unlink(struct path
*dir
, struct dentry
*dentry
)
1456 static inline int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
,
1462 static inline int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
)
1467 static inline int security_path_mknod(struct path
*dir
, struct dentry
*dentry
,
1468 umode_t mode
, unsigned int dev
)
1473 static inline int security_path_truncate(struct path
*path
)
1478 static inline int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
1479 const char *old_name
)
1484 static inline int security_path_link(struct dentry
*old_dentry
,
1485 struct path
*new_dir
,
1486 struct dentry
*new_dentry
)
1491 static inline int security_path_rename(struct path
*old_dir
,
1492 struct dentry
*old_dentry
,
1493 struct path
*new_dir
,
1494 struct dentry
*new_dentry
,
1500 static inline int security_path_chmod(struct path
*path
, umode_t mode
)
1505 static inline int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
)
1510 static inline int security_path_chroot(struct path
*path
)
1514 #endif /* CONFIG_SECURITY_PATH */
1517 #ifdef CONFIG_SECURITY
1519 int security_key_alloc(struct key
*key
, const struct cred
*cred
, unsigned long flags
);
1520 void security_key_free(struct key
*key
);
1521 int security_key_permission(key_ref_t key_ref
,
1522 const struct cred
*cred
, unsigned perm
);
1523 int security_key_getsecurity(struct key
*key
, char **_buffer
);
1527 static inline int security_key_alloc(struct key
*key
,
1528 const struct cred
*cred
,
1529 unsigned long flags
)
1534 static inline void security_key_free(struct key
*key
)
1538 static inline int security_key_permission(key_ref_t key_ref
,
1539 const struct cred
*cred
,
1545 static inline int security_key_getsecurity(struct key
*key
, char **_buffer
)
1552 #endif /* CONFIG_KEYS */
1555 #ifdef CONFIG_SECURITY
1556 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1557 int security_audit_rule_known(struct audit_krule
*krule
);
1558 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1559 struct audit_context
*actx
);
1560 void security_audit_rule_free(void *lsmrule
);
1564 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
1570 static inline int security_audit_rule_known(struct audit_krule
*krule
)
1575 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
1576 void *lsmrule
, struct audit_context
*actx
)
1581 static inline void security_audit_rule_free(void *lsmrule
)
1584 #endif /* CONFIG_SECURITY */
1585 #endif /* CONFIG_AUDIT */
1587 #ifdef CONFIG_SECURITYFS
1589 extern struct dentry
*securityfs_create_file(const char *name
, umode_t mode
,
1590 struct dentry
*parent
, void *data
,
1591 const struct file_operations
*fops
);
1592 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1593 extern void securityfs_remove(struct dentry
*dentry
);
1595 #else /* CONFIG_SECURITYFS */
1597 static inline struct dentry
*securityfs_create_dir(const char *name
,
1598 struct dentry
*parent
)
1600 return ERR_PTR(-ENODEV
);
1603 static inline struct dentry
*securityfs_create_file(const char *name
,
1605 struct dentry
*parent
,
1607 const struct file_operations
*fops
)
1609 return ERR_PTR(-ENODEV
);
1612 static inline void securityfs_remove(struct dentry
*dentry
)
1617 #ifdef CONFIG_SECURITY
1619 static inline char *alloc_secdata(void)
1621 return (char *)get_zeroed_page(GFP_KERNEL
);
1624 static inline void free_secdata(void *secdata
)
1626 free_page((unsigned long)secdata
);
1631 static inline char *alloc_secdata(void)
1636 static inline void free_secdata(void *secdata
)
1638 #endif /* CONFIG_SECURITY */
1640 #endif /* ! __LINUX_SECURITY_H */