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
26 #include <linux/binfmts.h>
27 #include <linux/signal.h>
28 #include <linux/resource.h>
29 #include <linux/sem.h>
30 #include <linux/shm.h>
31 #include <linux/msg.h>
32 #include <linux/sched.h>
33 #include <linux/key.h>
34 #include <linux/xfrm.h>
37 extern unsigned securebits
;
43 * These functions are in security/capability.c and are used
44 * as the default capabilities functions
46 extern int cap_capable (struct task_struct
*tsk
, int cap
);
47 extern int cap_settime (struct timespec
*ts
, struct timezone
*tz
);
48 extern int cap_ptrace (struct task_struct
*parent
, struct task_struct
*child
);
49 extern int cap_capget (struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
50 extern int cap_capset_check (struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
51 extern void cap_capset_set (struct task_struct
*target
, kernel_cap_t
*effective
, kernel_cap_t
*inheritable
, kernel_cap_t
*permitted
);
52 extern int cap_bprm_set_security (struct linux_binprm
*bprm
);
53 extern void cap_bprm_apply_creds (struct linux_binprm
*bprm
, int unsafe
);
54 extern int cap_bprm_secureexec(struct linux_binprm
*bprm
);
55 extern int cap_inode_setxattr(struct dentry
*dentry
, char *name
, void *value
, size_t size
, int flags
);
56 extern int cap_inode_removexattr(struct dentry
*dentry
, char *name
);
57 extern int cap_inode_need_killpriv(struct dentry
*dentry
);
58 extern int cap_inode_killpriv(struct dentry
*dentry
);
59 extern int cap_task_post_setuid (uid_t old_ruid
, uid_t old_euid
, uid_t old_suid
, int flags
);
60 extern void cap_task_reparent_to_init (struct task_struct
*p
);
61 extern int cap_task_setscheduler (struct task_struct
*p
, int policy
, struct sched_param
*lp
);
62 extern int cap_task_setioprio (struct task_struct
*p
, int ioprio
);
63 extern int cap_task_setnice (struct task_struct
*p
, int nice
);
64 extern int cap_syslog (int type
);
65 extern int cap_vm_enough_memory(struct mm_struct
*mm
, long pages
);
77 struct xfrm_user_sec_ctx
;
79 extern int cap_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
80 extern int cap_netlink_recv(struct sk_buff
*skb
, int cap
);
82 extern unsigned long mmap_min_addr
;
84 * Values used in the task_security_ops calls
86 /* setuid or setgid, id0 == uid or gid */
87 #define LSM_SETID_ID 1
89 /* setreuid or setregid, id0 == real, id1 == eff */
90 #define LSM_SETID_RE 2
92 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
93 #define LSM_SETID_RES 4
95 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
96 #define LSM_SETID_FS 8
98 /* forward declares to avoid warnings */
101 struct swap_info_struct
;
104 /* bprm_apply_creds unsafe reasons */
105 #define LSM_UNSAFE_SHARE 1
106 #define LSM_UNSAFE_PTRACE 2
107 #define LSM_UNSAFE_PTRACE_CAP 4
109 #ifdef CONFIG_SECURITY
111 struct security_mnt_opts
{
117 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
119 opts
->mnt_opts
= NULL
;
120 opts
->mnt_opts_flags
= NULL
;
121 opts
->num_mnt_opts
= 0;
124 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
128 for(i
= 0; i
< opts
->num_mnt_opts
; i
++)
129 kfree(opts
->mnt_opts
[i
]);
130 kfree(opts
->mnt_opts
);
131 opts
->mnt_opts
= NULL
;
132 kfree(opts
->mnt_opts_flags
);
133 opts
->mnt_opts_flags
= NULL
;
134 opts
->num_mnt_opts
= 0;
138 * struct security_operations - main security structure
140 * Security hooks for program execution operations.
142 * @bprm_alloc_security:
143 * Allocate and attach a security structure to the @bprm->security field.
144 * The security field is initialized to NULL when the bprm structure is
146 * @bprm contains the linux_binprm structure to be modified.
147 * Return 0 if operation was successful.
148 * @bprm_free_security:
149 * @bprm contains the linux_binprm structure to be modified.
150 * Deallocate and clear the @bprm->security field.
152 * Compute and set the security attributes of a process being transformed
153 * by an execve operation based on the old attributes (current->security)
154 * and the information saved in @bprm->security by the set_security hook.
155 * Since this hook function (and its caller) are void, this hook can not
156 * return an error. However, it can leave the security attributes of the
157 * process unchanged if an access failure occurs at this point.
158 * bprm_apply_creds is called under task_lock. @unsafe indicates various
159 * reasons why it may be unsafe to change security state.
160 * @bprm contains the linux_binprm structure.
161 * @bprm_post_apply_creds:
162 * Runs after bprm_apply_creds with the task_lock dropped, so that
163 * functions which cannot be called safely under the task_lock can
164 * be used. This hook is a good place to perform state changes on
165 * the process such as closing open file descriptors to which access
166 * is no longer granted if the attributes were changed.
167 * Note that a security module might need to save state between
168 * bprm_apply_creds and bprm_post_apply_creds to store the decision
169 * on whether the process may proceed.
170 * @bprm contains the linux_binprm structure.
171 * @bprm_set_security:
172 * Save security information in the bprm->security field, typically based
173 * on information about the bprm->file, for later use by the apply_creds
174 * hook. This hook may also optionally check permissions (e.g. for
175 * transitions between security domains).
176 * This hook may be called multiple times during a single execve, e.g. for
177 * interpreters. The hook can tell whether it has already been called by
178 * checking to see if @bprm->security is non-NULL. If so, then the hook
179 * may decide either to retain the security information saved earlier or
181 * @bprm contains the linux_binprm structure.
182 * Return 0 if the hook is successful and permission is granted.
183 * @bprm_check_security:
184 * This hook mediates the point when a search for a binary handler will
185 * begin. It allows a check the @bprm->security value which is set in
186 * the preceding set_security call. The primary difference from
187 * set_security is that the argv list and envp list are reliably
188 * available in @bprm. This hook may be called multiple times
189 * during a single execve; and in each pass set_security is called
191 * @bprm contains the linux_binprm structure.
192 * Return 0 if the hook is successful and permission is granted.
194 * Return a boolean value (0 or 1) indicating whether a "secure exec"
195 * is required. The flag is passed in the auxiliary table
196 * on the initial stack to the ELF interpreter to indicate whether libc
197 * should enable secure mode.
198 * @bprm contains the linux_binprm structure.
200 * Security hooks for filesystem operations.
202 * @sb_alloc_security:
203 * Allocate and attach a security structure to the sb->s_security field.
204 * The s_security field is initialized to NULL when the structure is
206 * @sb contains the super_block structure to be modified.
207 * Return 0 if operation was successful.
209 * Deallocate and clear the sb->s_security field.
210 * @sb contains the super_block structure to be modified.
212 * Check permission before obtaining filesystem statistics for the @mnt
214 * @dentry is a handle on the superblock for the filesystem.
215 * Return 0 if permission is granted.
217 * Check permission before an object specified by @dev_name is mounted on
218 * the mount point named by @nd. For an ordinary mount, @dev_name
219 * identifies a device if the file system type requires a device. For a
220 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
221 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
222 * pathname of the object being mounted.
223 * @dev_name contains the name for object being mounted.
224 * @nd contains the nameidata structure for mount point object.
225 * @type contains the filesystem type.
226 * @flags contains the mount flags.
227 * @data contains the filesystem-specific data.
228 * Return 0 if permission is granted.
230 * Allow mount option data to be copied prior to parsing by the filesystem,
231 * so that the security module can extract security-specific mount
232 * options cleanly (a filesystem may modify the data e.g. with strsep()).
233 * This also allows the original mount data to be stripped of security-
234 * specific options to avoid having to make filesystems aware of them.
235 * @type the type of filesystem being mounted.
236 * @orig the original mount data copied from userspace.
237 * @copy copied data which will be passed to the security module.
238 * Returns 0 if the copy was successful.
240 * Check permission before the device with superblock @mnt->sb is mounted
241 * on the mount point named by @nd.
242 * @mnt contains the vfsmount for device being mounted.
243 * @nd contains the nameidata object for the mount point.
244 * Return 0 if permission is granted.
246 * Check permission before the @mnt file system is unmounted.
247 * @mnt contains the mounted file system.
248 * @flags contains the unmount flags, e.g. MNT_FORCE.
249 * Return 0 if permission is granted.
251 * Close any files in the @mnt mounted filesystem that are held open by
252 * the security module. This hook is called during an umount operation
253 * prior to checking whether the filesystem is still busy.
254 * @mnt contains the mounted filesystem.
256 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
257 * any files that were closed by umount_close. This hook is called during
258 * an umount operation if the umount fails after a call to the
260 * @mnt contains the mounted filesystem.
262 * Update the security module's state when a filesystem is remounted.
263 * This hook is only called if the remount was successful.
264 * @mnt contains the mounted file system.
265 * @flags contains the new filesystem flags.
266 * @data contains the filesystem-specific data.
268 * Update the security module's state when a filesystem is mounted.
269 * This hook is called any time a mount is successfully grafetd to
271 * @mnt contains the mounted filesystem.
272 * @mountpoint_nd contains the nameidata structure for the mount point.
274 * Check permission before pivoting the root filesystem.
275 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
276 * @new_nd contains the nameidata structure for the new root (new_root).
277 * Return 0 if permission is granted.
278 * @sb_post_pivotroot:
279 * Update module state after a successful pivot.
280 * @old_nd contains the nameidata structure for the old root.
281 * @new_nd contains the nameidata structure for the new root.
283 * Get the security relevant mount options used for a superblock
284 * @sb the superblock to get security mount options from
285 * @opts binary data structure containing all lsm mount data
287 * Set the security relevant mount options used for a superblock
288 * @sb the superblock to set security mount options for
289 * @opts binary data structure containing all lsm mount data
290 * @sb_clone_mnt_opts:
291 * Copy all security options from a given superblock to another
292 * @oldsb old superblock which contain information to clone
293 * @newsb new superblock which needs filled in
294 * @sb_parse_opts_str:
295 * Parse a string of security data filling in the opts structure
296 * @options string containing all mount options known by the LSM
297 * @opts binary data structure usable by the LSM
299 * Security hooks for inode operations.
301 * @inode_alloc_security:
302 * Allocate and attach a security structure to @inode->i_security. The
303 * i_security field is initialized to NULL when the inode structure is
305 * @inode contains the inode structure.
306 * Return 0 if operation was successful.
307 * @inode_free_security:
308 * @inode contains the inode structure.
309 * Deallocate the inode security structure and set @inode->i_security to
311 * @inode_init_security:
312 * Obtain the security attribute name suffix and value to set on a newly
313 * created inode and set up the incore security field for the new inode.
314 * This hook is called by the fs code as part of the inode creation
315 * transaction and provides for atomic labeling of the inode, unlike
316 * the post_create/mkdir/... hooks called by the VFS. The hook function
317 * is expected to allocate the name and value via kmalloc, with the caller
318 * being responsible for calling kfree after using them.
319 * If the security module does not use security attributes or does
320 * not wish to put a security attribute on this particular inode,
321 * then it should return -EOPNOTSUPP to skip this processing.
322 * @inode contains the inode structure of the newly created inode.
323 * @dir contains the inode structure of the parent directory.
324 * @name will be set to the allocated name suffix (e.g. selinux).
325 * @value will be set to the allocated attribute value.
326 * @len will be set to the length of the value.
327 * Returns 0 if @name and @value have been successfully set,
328 * -EOPNOTSUPP if no security attribute is needed, or
329 * -ENOMEM on memory allocation failure.
331 * Check permission to create a regular file.
332 * @dir contains inode structure of the parent of the new file.
333 * @dentry contains the dentry structure for the file to be created.
334 * @mode contains the file mode of the file to be created.
335 * Return 0 if permission is granted.
337 * Check permission before creating a new hard link to a file.
338 * @old_dentry contains the dentry structure for an existing link to the file.
339 * @dir contains the inode structure of the parent directory of the new link.
340 * @new_dentry contains the dentry structure for the new link.
341 * Return 0 if permission is granted.
343 * Check the permission to remove a hard link to a file.
344 * @dir contains the inode structure of parent directory of the file.
345 * @dentry contains the dentry structure for file to be unlinked.
346 * Return 0 if permission is granted.
348 * Check the permission to create a symbolic link to a file.
349 * @dir contains the inode structure of parent directory of the symbolic link.
350 * @dentry contains the dentry structure of the symbolic link.
351 * @old_name contains the pathname of file.
352 * Return 0 if permission is granted.
354 * Check permissions to create a new directory in the existing directory
355 * associated with inode strcture @dir.
356 * @dir containst the inode structure of parent of the directory to be created.
357 * @dentry contains the dentry structure of new directory.
358 * @mode contains the mode of new directory.
359 * Return 0 if permission is granted.
361 * Check the permission to remove a directory.
362 * @dir contains the inode structure of parent of the directory to be removed.
363 * @dentry contains the dentry structure of directory to be removed.
364 * Return 0 if permission is granted.
366 * Check permissions when creating a special file (or a socket or a fifo
367 * file created via the mknod system call). Note that if mknod operation
368 * is being done for a regular file, then the create hook will be called
370 * @dir contains the inode structure of parent of the new file.
371 * @dentry contains the dentry structure of the new file.
372 * @mode contains the mode of the new file.
373 * @dev contains the device number.
374 * Return 0 if permission is granted.
376 * Check for permission to rename a file or directory.
377 * @old_dir contains the inode structure for parent of the old link.
378 * @old_dentry contains the dentry structure of the old link.
379 * @new_dir contains the inode structure for parent of the new link.
380 * @new_dentry contains the dentry structure of the new link.
381 * Return 0 if permission is granted.
383 * Check the permission to read the symbolic link.
384 * @dentry contains the dentry structure for the file link.
385 * Return 0 if permission is granted.
386 * @inode_follow_link:
387 * Check permission to follow a symbolic link when looking up a pathname.
388 * @dentry contains the dentry structure for the link.
389 * @nd contains the nameidata structure for the parent directory.
390 * Return 0 if permission is granted.
392 * Check permission before accessing an inode. This hook is called by the
393 * existing Linux permission function, so a security module can use it to
394 * provide additional checking for existing Linux permission checks.
395 * Notice that this hook is called when a file is opened (as well as many
396 * other operations), whereas the file_security_ops permission hook is
397 * called when the actual read/write operations are performed.
398 * @inode contains the inode structure to check.
399 * @mask contains the permission mask.
400 * @nd contains the nameidata (may be NULL).
401 * Return 0 if permission is granted.
403 * Check permission before setting file attributes. Note that the kernel
404 * call to notify_change is performed from several locations, whenever
405 * file attributes change (such as when a file is truncated, chown/chmod
406 * operations, transferring disk quotas, etc).
407 * @dentry contains the dentry structure for the file.
408 * @attr is the iattr structure containing the new file attributes.
409 * Return 0 if permission is granted.
411 * Check permission before obtaining file attributes.
412 * @mnt is the vfsmount where the dentry was looked up
413 * @dentry contains the dentry structure for the file.
414 * Return 0 if permission is granted.
416 * @inode contains the inode structure for deleted inode.
417 * This hook is called when a deleted inode is released (i.e. an inode
418 * with no hard links has its use count drop to zero). A security module
419 * can use this hook to release any persistent label associated with the
422 * Check permission before setting the extended attributes
423 * @value identified by @name for @dentry.
424 * Return 0 if permission is granted.
425 * @inode_post_setxattr:
426 * Update inode security field after successful setxattr operation.
427 * @value identified by @name for @dentry.
429 * Check permission before obtaining the extended attributes
430 * identified by @name for @dentry.
431 * Return 0 if permission is granted.
433 * Check permission before obtaining the list of extended attribute
435 * Return 0 if permission is granted.
436 * @inode_removexattr:
437 * Check permission before removing the extended attribute
438 * identified by @name for @dentry.
439 * Return 0 if permission is granted.
440 * @inode_getsecurity:
441 * Retrieve a copy of the extended attribute representation of the
442 * security label associated with @name for @inode via @buffer. Note that
443 * @name is the remainder of the attribute name after the security prefix
444 * has been removed. @alloc is used to specify of the call should return a
445 * value via the buffer or just the value length Return size of buffer on
447 * @inode_setsecurity:
448 * Set the security label associated with @name for @inode from the
449 * extended attribute value @value. @size indicates the size of the
450 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
451 * Note that @name is the remainder of the attribute name after the
452 * security. prefix has been removed.
453 * Return 0 on success.
454 * @inode_listsecurity:
455 * Copy the extended attribute names for the security labels
456 * associated with @inode into @buffer. The maximum size of @buffer
457 * is specified by @buffer_size. @buffer may be NULL to request
458 * the size of the buffer required.
459 * Returns number of bytes used/required on success.
460 * @inode_need_killpriv:
461 * Called when an inode has been changed.
462 * @dentry is the dentry being changed.
463 * Return <0 on error to abort the inode change operation.
464 * Return 0 if inode_killpriv does not need to be called.
465 * Return >0 if inode_killpriv does need to be called.
467 * The setuid bit is being removed. Remove similar security labels.
468 * Called with the dentry->d_inode->i_mutex held.
469 * @dentry is the dentry being changed.
470 * Return 0 on success. If error is returned, then the operation
471 * causing setuid bit removal is failed.
473 * Get the secid associated with the node.
474 * @inode contains a pointer to the inode.
475 * @secid contains a pointer to the location where result will be saved.
476 * In case of failure, @secid will be set to zero.
478 * Security hooks for file operations
481 * Check file permissions before accessing an open file. This hook is
482 * called by various operations that read or write files. A security
483 * module can use this hook to perform additional checking on these
484 * operations, e.g. to revalidate permissions on use to support privilege
485 * bracketing or policy changes. Notice that this hook is used when the
486 * actual read/write operations are performed, whereas the
487 * inode_security_ops hook is called when a file is opened (as well as
488 * many other operations).
489 * Caveat: Although this hook can be used to revalidate permissions for
490 * various system call operations that read or write files, it does not
491 * address the revalidation of permissions for memory-mapped files.
492 * Security modules must handle this separately if they need such
494 * @file contains the file structure being accessed.
495 * @mask contains the requested permissions.
496 * Return 0 if permission is granted.
497 * @file_alloc_security:
498 * Allocate and attach a security structure to the file->f_security field.
499 * The security field is initialized to NULL when the structure is first
501 * @file contains the file structure to secure.
502 * Return 0 if the hook is successful and permission is granted.
503 * @file_free_security:
504 * Deallocate and free any security structures stored in file->f_security.
505 * @file contains the file structure being modified.
507 * @file contains the file structure.
508 * @cmd contains the operation to perform.
509 * @arg contains the operational arguments.
510 * Check permission for an ioctl operation on @file. Note that @arg can
511 * sometimes represents a user space pointer; in other cases, it may be a
512 * simple integer value. When @arg represents a user space pointer, it
513 * should never be used by the security module.
514 * Return 0 if permission is granted.
516 * Check permissions for a mmap operation. The @file may be NULL, e.g.
517 * if mapping anonymous memory.
518 * @file contains the file structure for file to map (may be NULL).
519 * @reqprot contains the protection requested by the application.
520 * @prot contains the protection that will be applied by the kernel.
521 * @flags contains the operational flags.
522 * Return 0 if permission is granted.
524 * Check permissions before changing memory access permissions.
525 * @vma contains the memory region to modify.
526 * @reqprot contains the protection requested by the application.
527 * @prot contains the protection that will be applied by the kernel.
528 * Return 0 if permission is granted.
530 * Check permission before performing file locking operations.
531 * Note: this hook mediates both flock and fcntl style locks.
532 * @file contains the file structure.
533 * @cmd contains the posix-translated lock operation to perform
534 * (e.g. F_RDLCK, F_WRLCK).
535 * Return 0 if permission is granted.
537 * Check permission before allowing the file operation specified by @cmd
538 * from being performed on the file @file. Note that @arg can sometimes
539 * represents a user space pointer; in other cases, it may be a simple
540 * integer value. When @arg represents a user space pointer, it should
541 * never be used by the security module.
542 * @file contains the file structure.
543 * @cmd contains the operation to be performed.
544 * @arg contains the operational arguments.
545 * Return 0 if permission is granted.
547 * Save owner security information (typically from current->security) in
548 * file->f_security for later use by the send_sigiotask hook.
549 * @file contains the file structure to update.
550 * Return 0 on success.
551 * @file_send_sigiotask:
552 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
553 * process @tsk. Note that this hook is sometimes called from interrupt.
554 * Note that the fown_struct, @fown, is never outside the context of a
555 * struct file, so the file structure (and associated security information)
556 * can always be obtained:
557 * container_of(fown, struct file, f_owner)
558 * @tsk contains the structure of task receiving signal.
559 * @fown contains the file owner information.
560 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
561 * Return 0 if permission is granted.
563 * This hook allows security modules to control the ability of a process
564 * to receive an open file descriptor via socket IPC.
565 * @file contains the file structure being received.
566 * Return 0 if permission is granted.
568 * Security hook for dentry
571 * Save open-time permission checking state for later use upon
572 * file_permission, and recheck access if anything has changed
573 * since inode_permission.
575 * Security hooks for task operations.
578 * Check permission before creating a child process. See the clone(2)
579 * manual page for definitions of the @clone_flags.
580 * @clone_flags contains the flags indicating what should be shared.
581 * Return 0 if permission is granted.
582 * @task_alloc_security:
583 * @p contains the task_struct for child process.
584 * Allocate and attach a security structure to the p->security field. The
585 * security field is initialized to NULL when the task structure is
587 * Return 0 if operation was successful.
588 * @task_free_security:
589 * @p contains the task_struct for process.
590 * Deallocate and clear the p->security field.
592 * Check permission before setting one or more of the user identity
593 * attributes of the current process. The @flags parameter indicates
594 * which of the set*uid system calls invoked this hook and how to
595 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
596 * definitions at the beginning of this file for the @flags values and
598 * @id0 contains a uid.
599 * @id1 contains a uid.
600 * @id2 contains a uid.
601 * @flags contains one of the LSM_SETID_* values.
602 * Return 0 if permission is granted.
604 * Update the module's state after setting one or more of the user
605 * identity attributes of the current process. The @flags parameter
606 * indicates which of the set*uid system calls invoked this hook. If
607 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
608 * parameters are not used.
609 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
610 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
611 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
612 * @flags contains one of the LSM_SETID_* values.
613 * Return 0 on success.
615 * Check permission before setting one or more of the group identity
616 * attributes of the current process. The @flags parameter indicates
617 * which of the set*gid system calls invoked this hook and how to
618 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
619 * definitions at the beginning of this file for the @flags values and
621 * @id0 contains a gid.
622 * @id1 contains a gid.
623 * @id2 contains a gid.
624 * @flags contains one of the LSM_SETID_* values.
625 * Return 0 if permission is granted.
627 * Check permission before setting the process group identifier of the
628 * process @p to @pgid.
629 * @p contains the task_struct for process being modified.
630 * @pgid contains the new pgid.
631 * Return 0 if permission is granted.
633 * Check permission before getting the process group identifier of the
635 * @p contains the task_struct for the process.
636 * Return 0 if permission is granted.
638 * Check permission before getting the session identifier of the process
640 * @p contains the task_struct for the process.
641 * Return 0 if permission is granted.
643 * Retrieve the security identifier of the process @p.
644 * @p contains the task_struct for the process and place is into @secid.
645 * In case of failure, @secid will be set to zero.
648 * Check permission before setting the supplementary group set of the
650 * @group_info contains the new group information.
651 * Return 0 if permission is granted.
653 * Check permission before setting the nice value of @p to @nice.
654 * @p contains the task_struct of process.
655 * @nice contains the new nice value.
656 * Return 0 if permission is granted.
658 * Check permission before setting the ioprio value of @p to @ioprio.
659 * @p contains the task_struct of process.
660 * @ioprio contains the new ioprio value
661 * Return 0 if permission is granted.
663 * Check permission before getting the ioprio value of @p.
664 * @p contains the task_struct of process.
665 * Return 0 if permission is granted.
667 * Check permission before setting the resource limits of the current
668 * process for @resource to @new_rlim. The old resource limit values can
669 * be examined by dereferencing (current->signal->rlim + resource).
670 * @resource contains the resource whose limit is being set.
671 * @new_rlim contains the new limits for @resource.
672 * Return 0 if permission is granted.
673 * @task_setscheduler:
674 * Check permission before setting scheduling policy and/or parameters of
675 * process @p based on @policy and @lp.
676 * @p contains the task_struct for process.
677 * @policy contains the scheduling policy.
678 * @lp contains the scheduling parameters.
679 * Return 0 if permission is granted.
680 * @task_getscheduler:
681 * Check permission before obtaining scheduling information for process
683 * @p contains the task_struct for process.
684 * Return 0 if permission is granted.
686 * Check permission before moving memory owned by process @p.
687 * @p contains the task_struct for process.
688 * Return 0 if permission is granted.
690 * Check permission before sending signal @sig to @p. @info can be NULL,
691 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
692 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
693 * from the kernel and should typically be permitted.
694 * SIGIO signals are handled separately by the send_sigiotask hook in
696 * @p contains the task_struct for process.
697 * @info contains the signal information.
698 * @sig contains the signal value.
699 * @secid contains the sid of the process where the signal originated
700 * Return 0 if permission is granted.
702 * Check permission before allowing a process to reap a child process @p
703 * and collect its status information.
704 * @p contains the task_struct for process.
705 * Return 0 if permission is granted.
707 * Check permission before performing a process control operation on the
709 * @option contains the operation.
710 * @arg2 contains a argument.
711 * @arg3 contains a argument.
712 * @arg4 contains a argument.
713 * @arg5 contains a argument.
714 * Return 0 if permission is granted.
715 * @task_reparent_to_init:
716 * Set the security attributes in @p->security for a kernel thread that
717 * is being reparented to the init task.
718 * @p contains the task_struct for the kernel thread.
720 * Set the security attributes for an inode based on an associated task's
721 * security attributes, e.g. for /proc/pid inodes.
722 * @p contains the task_struct for the task.
723 * @inode contains the inode structure for the inode.
725 * Security hooks for Netlink messaging.
728 * Save security information for a netlink message so that permission
729 * checking can be performed when the message is processed. The security
730 * information can be saved using the eff_cap field of the
731 * netlink_skb_parms structure. Also may be used to provide fine
732 * grained control over message transmission.
733 * @sk associated sock of task sending the message.,
734 * @skb contains the sk_buff structure for the netlink message.
735 * Return 0 if the information was successfully saved and message
736 * is allowed to be transmitted.
738 * Check permission before processing the received netlink message in
740 * @skb contains the sk_buff structure for the netlink message.
741 * @cap indicates the capability required
742 * Return 0 if permission is granted.
744 * Security hooks for Unix domain networking.
746 * @unix_stream_connect:
747 * Check permissions before establishing a Unix domain stream connection
748 * between @sock and @other.
749 * @sock contains the socket structure.
750 * @other contains the peer socket structure.
751 * Return 0 if permission is granted.
753 * Check permissions before connecting or sending datagrams from @sock to
755 * @sock contains the socket structure.
756 * @sock contains the peer socket structure.
757 * Return 0 if permission is granted.
759 * The @unix_stream_connect and @unix_may_send hooks were necessary because
760 * Linux provides an alternative to the conventional file name space for Unix
761 * domain sockets. Whereas binding and connecting to sockets in the file name
762 * space is mediated by the typical file permissions (and caught by the mknod
763 * and permission hooks in inode_security_ops), binding and connecting to
764 * sockets in the abstract name space is completely unmediated. Sufficient
765 * control of Unix domain sockets in the abstract name space isn't possible
766 * using only the socket layer hooks, since we need to know the actual target
767 * socket, which is not looked up until we are inside the af_unix code.
769 * Security hooks for socket operations.
772 * Check permissions prior to creating a new socket.
773 * @family contains the requested protocol family.
774 * @type contains the requested communications type.
775 * @protocol contains the requested protocol.
776 * @kern set to 1 if a kernel socket.
777 * Return 0 if permission is granted.
778 * @socket_post_create:
779 * This hook allows a module to update or allocate a per-socket security
780 * structure. Note that the security field was not added directly to the
781 * socket structure, but rather, the socket security information is stored
782 * in the associated inode. Typically, the inode alloc_security hook will
783 * allocate and and attach security information to
784 * sock->inode->i_security. This hook may be used to update the
785 * sock->inode->i_security field with additional information that wasn't
786 * available when the inode was allocated.
787 * @sock contains the newly created socket structure.
788 * @family contains the requested protocol family.
789 * @type contains the requested communications type.
790 * @protocol contains the requested protocol.
791 * @kern set to 1 if a kernel socket.
793 * Check permission before socket protocol layer bind operation is
794 * performed and the socket @sock is bound to the address specified in the
795 * @address parameter.
796 * @sock contains the socket structure.
797 * @address contains the address to bind to.
798 * @addrlen contains the length of address.
799 * Return 0 if permission is granted.
801 * Check permission before socket protocol layer connect operation
802 * attempts to connect socket @sock to a remote address, @address.
803 * @sock contains the socket structure.
804 * @address contains the address of remote endpoint.
805 * @addrlen contains the length of address.
806 * Return 0 if permission is granted.
808 * Check permission before socket protocol layer listen operation.
809 * @sock contains the socket structure.
810 * @backlog contains the maximum length for the pending connection queue.
811 * Return 0 if permission is granted.
813 * Check permission before accepting a new connection. Note that the new
814 * socket, @newsock, has been created and some information copied to it,
815 * but the accept operation has not actually been performed.
816 * @sock contains the listening socket structure.
817 * @newsock contains the newly created server socket for connection.
818 * Return 0 if permission is granted.
819 * @socket_post_accept:
820 * This hook allows a security module to copy security
821 * information into the newly created socket's inode.
822 * @sock contains the listening socket structure.
823 * @newsock contains the newly created server socket for connection.
825 * Check permission before transmitting a message to another socket.
826 * @sock contains the socket structure.
827 * @msg contains the message to be transmitted.
828 * @size contains the size of message.
829 * Return 0 if permission is granted.
831 * Check permission before receiving a message from a socket.
832 * @sock contains the socket structure.
833 * @msg contains the message structure.
834 * @size contains the size of message structure.
835 * @flags contains the operational flags.
836 * Return 0 if permission is granted.
837 * @socket_getsockname:
838 * Check permission before the local address (name) of the socket object
839 * @sock is retrieved.
840 * @sock contains the socket structure.
841 * Return 0 if permission is granted.
842 * @socket_getpeername:
843 * Check permission before the remote address (name) of a socket object
844 * @sock is retrieved.
845 * @sock contains the socket structure.
846 * Return 0 if permission is granted.
847 * @socket_getsockopt:
848 * Check permissions before retrieving the options associated with socket
850 * @sock contains the socket structure.
851 * @level contains the protocol level to retrieve option from.
852 * @optname contains the name of option to retrieve.
853 * Return 0 if permission is granted.
854 * @socket_setsockopt:
855 * Check permissions before setting the options associated with socket
857 * @sock contains the socket structure.
858 * @level contains the protocol level to set options for.
859 * @optname contains the name of the option to set.
860 * Return 0 if permission is granted.
862 * Checks permission before all or part of a connection on the socket
863 * @sock is shut down.
864 * @sock contains the socket structure.
865 * @how contains the flag indicating how future sends and receives are handled.
866 * Return 0 if permission is granted.
867 * @socket_sock_rcv_skb:
868 * Check permissions on incoming network packets. This hook is distinct
869 * from Netfilter's IP input hooks since it is the first time that the
870 * incoming sk_buff @skb has been associated with a particular socket, @sk.
871 * @sk contains the sock (not socket) associated with the incoming sk_buff.
872 * @skb contains the incoming network data.
873 * @socket_getpeersec_stream:
874 * This hook allows the security module to provide peer socket security
875 * state for unix or connected tcp sockets to userspace via getsockopt
876 * SO_GETPEERSEC. For tcp sockets this can be meaningful if the
877 * socket is associated with an ipsec SA.
878 * @sock is the local socket.
879 * @optval userspace memory where the security state is to be copied.
880 * @optlen userspace int where the module should copy the actual length
881 * of the security state.
882 * @len as input is the maximum length to copy to userspace provided
884 * Return 0 if all is well, otherwise, typical getsockopt return
886 * @socket_getpeersec_dgram:
887 * This hook allows the security module to provide peer socket security
888 * state for udp sockets on a per-packet basis to userspace via
889 * getsockopt SO_GETPEERSEC. The application must first have indicated
890 * the IP_PASSSEC option via getsockopt. It can then retrieve the
891 * security state returned by this hook for a packet via the SCM_SECURITY
892 * ancillary message type.
893 * @skb is the skbuff for the packet being queried
894 * @secdata is a pointer to a buffer in which to copy the security data
895 * @seclen is the maximum length for @secdata
896 * Return 0 on success, error on failure.
897 * @sk_alloc_security:
898 * Allocate and attach a security structure to the sk->sk_security field,
899 * which is used to copy security attributes between local stream sockets.
901 * Deallocate security structure.
902 * @sk_clone_security:
903 * Clone/copy security structure.
905 * Retrieve the LSM-specific secid for the sock to enable caching of network
908 * Sets the socket's isec sid to the sock's sid.
909 * @inet_conn_request:
910 * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
912 * Sets the new child socket's sid to the openreq sid.
913 * @inet_conn_established:
914 * Sets the connection's peersid to the secmark on skb.
915 * @req_classify_flow:
916 * Sets the flow's sid to the openreq sid.
918 * Security hooks for XFRM operations.
920 * @xfrm_policy_alloc_security:
921 * @xp contains the xfrm_policy being added to Security Policy Database
922 * used by the XFRM system.
923 * @sec_ctx contains the security context information being provided by
924 * the user-level policy update program (e.g., setkey).
925 * Allocate a security structure to the xp->security field; the security
926 * field is initialized to NULL when the xfrm_policy is allocated.
927 * Return 0 if operation was successful (memory to allocate, legal context)
928 * @xfrm_policy_clone_security:
929 * @old contains an existing xfrm_policy in the SPD.
930 * @new contains a new xfrm_policy being cloned from old.
931 * Allocate a security structure to the new->security field
932 * that contains the information from the old->security field.
933 * Return 0 if operation was successful (memory to allocate).
934 * @xfrm_policy_free_security:
935 * @xp contains the xfrm_policy
936 * Deallocate xp->security.
937 * @xfrm_policy_delete_security:
938 * @xp contains the xfrm_policy.
939 * Authorize deletion of xp->security.
940 * @xfrm_state_alloc_security:
941 * @x contains the xfrm_state being added to the Security Association
942 * Database by the XFRM system.
943 * @sec_ctx contains the security context information being provided by
944 * the user-level SA generation program (e.g., setkey or racoon).
945 * @secid contains the secid from which to take the mls portion of the context.
946 * Allocate a security structure to the x->security field; the security
947 * field is initialized to NULL when the xfrm_state is allocated. Set the
948 * context to correspond to either sec_ctx or polsec, with the mls portion
949 * taken from secid in the latter case.
950 * Return 0 if operation was successful (memory to allocate, legal context).
951 * @xfrm_state_free_security:
952 * @x contains the xfrm_state.
953 * Deallocate x->security.
954 * @xfrm_state_delete_security:
955 * @x contains the xfrm_state.
956 * Authorize deletion of x->security.
957 * @xfrm_policy_lookup:
958 * @xp contains the xfrm_policy for which the access control is being
960 * @fl_secid contains the flow security label that is used to authorize
961 * access to the policy xp.
962 * @dir contains the direction of the flow (input or output).
963 * Check permission when a flow selects a xfrm_policy for processing
964 * XFRMs on a packet. The hook is called when selecting either a
965 * per-socket policy or a generic xfrm policy.
966 * Return 0 if permission is granted, -ESRCH otherwise, or -errno
968 * @xfrm_state_pol_flow_match:
969 * @x contains the state to match.
970 * @xp contains the policy to check for a match.
971 * @fl contains the flow to check for a match.
972 * Return 1 if there is a match.
973 * @xfrm_decode_session:
974 * @skb points to skb to decode.
975 * @secid points to the flow key secid to set.
976 * @ckall says if all xfrms used should be checked for same secid.
977 * Return 0 if ckall is zero or all xfrms used have the same secid.
979 * Security hooks affecting all Key Management operations
982 * Permit allocation of a key and assign security data. Note that key does
983 * not have a serial number assigned at this point.
984 * @key points to the key.
985 * @flags is the allocation flags
986 * Return 0 if permission is granted, -ve error otherwise.
988 * Notification of destruction; free security data.
989 * @key points to the key.
992 * See whether a specific operational right is granted to a process on a
994 * @key_ref refers to the key (key pointer + possession attribute bit).
995 * @context points to the process to provide the context against which to
996 * evaluate the security data on the key.
997 * @perm describes the combination of permissions required of this key.
998 * Return 1 if permission granted, 0 if permission denied and -ve it the
999 * normal permissions model should be effected.
1001 * Security hooks affecting all System V IPC operations.
1004 * Check permissions for access to IPC
1005 * @ipcp contains the kernel IPC permission structure
1006 * @flag contains the desired (requested) permission set
1007 * Return 0 if permission is granted.
1009 * Get the secid associated with the ipc object.
1010 * @ipcp contains the kernel IPC permission structure.
1011 * @secid contains a pointer to the location where result will be saved.
1012 * In case of failure, @secid will be set to zero.
1014 * Security hooks for individual messages held in System V IPC message queues
1015 * @msg_msg_alloc_security:
1016 * Allocate and attach a security structure to the msg->security field.
1017 * The security field is initialized to NULL when the structure is first
1019 * @msg contains the message structure to be modified.
1020 * Return 0 if operation was successful and permission is granted.
1021 * @msg_msg_free_security:
1022 * Deallocate the security structure for this message.
1023 * @msg contains the message structure to be modified.
1025 * Security hooks for System V IPC Message Queues
1027 * @msg_queue_alloc_security:
1028 * Allocate and attach a security structure to the
1029 * msq->q_perm.security field. The security field is initialized to
1030 * NULL when the structure is first created.
1031 * @msq contains the message queue structure to be modified.
1032 * Return 0 if operation was successful and permission is granted.
1033 * @msg_queue_free_security:
1034 * Deallocate security structure for this message queue.
1035 * @msq contains the message queue structure to be modified.
1036 * @msg_queue_associate:
1037 * Check permission when a message queue is requested through the
1038 * msgget system call. This hook is only called when returning the
1039 * message queue identifier for an existing message queue, not when a
1040 * new message queue is created.
1041 * @msq contains the message queue to act upon.
1042 * @msqflg contains the operation control flags.
1043 * Return 0 if permission is granted.
1044 * @msg_queue_msgctl:
1045 * Check permission when a message control operation specified by @cmd
1046 * is to be performed on the message queue @msq.
1047 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1048 * @msq contains the message queue to act upon. May be NULL.
1049 * @cmd contains the operation to be performed.
1050 * Return 0 if permission is granted.
1051 * @msg_queue_msgsnd:
1052 * Check permission before a message, @msg, is enqueued on the message
1054 * @msq contains the message queue to send message to.
1055 * @msg contains the message to be enqueued.
1056 * @msqflg contains operational flags.
1057 * Return 0 if permission is granted.
1058 * @msg_queue_msgrcv:
1059 * Check permission before a message, @msg, is removed from the message
1060 * queue, @msq. The @target task structure contains a pointer to the
1061 * process that will be receiving the message (not equal to the current
1062 * process when inline receives are being performed).
1063 * @msq contains the message queue to retrieve message from.
1064 * @msg contains the message destination.
1065 * @target contains the task structure for recipient process.
1066 * @type contains the type of message requested.
1067 * @mode contains the operational flags.
1068 * Return 0 if permission is granted.
1070 * Security hooks for System V Shared Memory Segments
1072 * @shm_alloc_security:
1073 * Allocate and attach a security structure to the shp->shm_perm.security
1074 * field. The security field is initialized to NULL when the structure is
1076 * @shp contains the shared memory structure to be modified.
1077 * Return 0 if operation was successful and permission is granted.
1078 * @shm_free_security:
1079 * Deallocate the security struct for this memory segment.
1080 * @shp contains the shared memory structure to be modified.
1082 * Check permission when a shared memory region is requested through the
1083 * shmget system call. This hook is only called when returning the shared
1084 * memory region identifier for an existing region, not when a new shared
1085 * memory region is created.
1086 * @shp contains the shared memory structure to be modified.
1087 * @shmflg contains the operation control flags.
1088 * Return 0 if permission is granted.
1090 * Check permission when a shared memory control operation specified by
1091 * @cmd is to be performed on the shared memory region @shp.
1092 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1093 * @shp contains shared memory structure to be modified.
1094 * @cmd contains the operation to be performed.
1095 * Return 0 if permission is granted.
1097 * Check permissions prior to allowing the shmat system call to attach the
1098 * shared memory segment @shp to the data segment of the calling process.
1099 * The attaching address is specified by @shmaddr.
1100 * @shp contains the shared memory structure to be modified.
1101 * @shmaddr contains the address to attach memory region to.
1102 * @shmflg contains the operational flags.
1103 * Return 0 if permission is granted.
1105 * Security hooks for System V Semaphores
1107 * @sem_alloc_security:
1108 * Allocate and attach a security structure to the sma->sem_perm.security
1109 * field. The security field is initialized to NULL when the structure is
1111 * @sma contains the semaphore structure
1112 * Return 0 if operation was successful and permission is granted.
1113 * @sem_free_security:
1114 * deallocate security struct for this semaphore
1115 * @sma contains the semaphore structure.
1117 * Check permission when a semaphore is requested through the semget
1118 * system call. This hook is only called when returning the semaphore
1119 * identifier for an existing semaphore, not when a new one must be
1121 * @sma contains the semaphore structure.
1122 * @semflg contains the operation control flags.
1123 * Return 0 if permission is granted.
1125 * Check permission when a semaphore operation specified by @cmd is to be
1126 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
1127 * IPC_INFO or SEM_INFO.
1128 * @sma contains the semaphore structure. May be NULL.
1129 * @cmd contains the operation to be performed.
1130 * Return 0 if permission is granted.
1132 * Check permissions before performing operations on members of the
1133 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1135 * @sma contains the semaphore structure.
1136 * @sops contains the operations to perform.
1137 * @nsops contains the number of operations to perform.
1138 * @alter contains the flag indicating whether changes are to be made.
1139 * Return 0 if permission is granted.
1142 * Check permission before allowing the @parent process to trace the
1144 * Security modules may also want to perform a process tracing check
1145 * during an execve in the set_security or apply_creds hooks of
1146 * binprm_security_ops if the process is being traced and its security
1147 * attributes would be changed by the execve.
1148 * @parent contains the task_struct structure for parent process.
1149 * @child contains the task_struct structure for child process.
1150 * Return 0 if permission is granted.
1152 * Get the @effective, @inheritable, and @permitted capability sets for
1153 * the @target process. The hook may also perform permission checking to
1154 * determine if the current process is allowed to see the capability sets
1155 * of the @target process.
1156 * @target contains the task_struct structure for target process.
1157 * @effective contains the effective capability set.
1158 * @inheritable contains the inheritable capability set.
1159 * @permitted contains the permitted capability set.
1160 * Return 0 if the capability sets were successfully obtained.
1162 * Check permission before setting the @effective, @inheritable, and
1163 * @permitted capability sets for the @target process.
1164 * Caveat: @target is also set to current if a set of processes is
1165 * specified (i.e. all processes other than current and init or a
1166 * particular process group). Hence, the capset_set hook may need to
1167 * revalidate permission to the actual target process.
1168 * @target contains the task_struct structure for target process.
1169 * @effective contains the effective capability set.
1170 * @inheritable contains the inheritable capability set.
1171 * @permitted contains the permitted capability set.
1172 * Return 0 if permission is granted.
1174 * Set the @effective, @inheritable, and @permitted capability sets for
1175 * the @target process. Since capset_check cannot always check permission
1176 * to the real @target process, this hook may also perform permission
1177 * checking to determine if the current process is allowed to set the
1178 * capability sets of the @target process. However, this hook has no way
1179 * of returning an error due to the structure of the sys_capset code.
1180 * @target contains the task_struct structure for target process.
1181 * @effective contains the effective capability set.
1182 * @inheritable contains the inheritable capability set.
1183 * @permitted contains the permitted capability set.
1185 * Check whether the @tsk process has the @cap capability.
1186 * @tsk contains the task_struct for the process.
1187 * @cap contains the capability <include/linux/capability.h>.
1188 * Return 0 if the capability is granted for @tsk.
1190 * Check permission before enabling or disabling process accounting. If
1191 * accounting is being enabled, then @file refers to the open file used to
1192 * store accounting records. If accounting is being disabled, then @file
1194 * @file contains the file structure for the accounting file (may be NULL).
1195 * Return 0 if permission is granted.
1197 * Check permission before accessing the @table sysctl variable in the
1198 * manner specified by @op.
1199 * @table contains the ctl_table structure for the sysctl variable.
1200 * @op contains the operation (001 = search, 002 = write, 004 = read).
1201 * Return 0 if permission is granted.
1203 * Check permission before accessing the kernel message ring or changing
1204 * logging to the console.
1205 * See the syslog(2) manual page for an explanation of the @type values.
1206 * @type contains the type of action.
1207 * Return 0 if permission is granted.
1209 * Check permission to change the system time.
1210 * struct timespec and timezone are defined in include/linux/time.h
1211 * @ts contains new time
1212 * @tz contains new timezone
1213 * Return 0 if permission is granted.
1214 * @vm_enough_memory:
1215 * Check permissions for allocating a new virtual mapping.
1216 * @mm contains the mm struct it is being added to.
1217 * @pages contains the number of pages.
1218 * Return 0 if permission is granted.
1220 * @register_security:
1221 * allow module stacking.
1222 * @name contains the name of the security module being stacked.
1223 * @ops contains a pointer to the struct security_operations of the module to stack.
1226 * Convert secid to security context.
1227 * @secid contains the security ID.
1228 * @secdata contains the pointer that stores the converted security context.
1230 * Convert security context to secid.
1231 * @secid contains the pointer to the generated security ID.
1232 * @secdata contains the security context.
1235 * Release the security context.
1236 * @secdata contains the security context.
1237 * @seclen contains the length of the security context.
1239 * Security hooks for Audit
1242 * Allocate and initialize an LSM audit rule structure.
1243 * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1244 * @op contains the operator the rule uses.
1245 * @rulestr contains the context where the rule will be applied to.
1246 * @lsmrule contains a pointer to receive the result.
1247 * Return 0 if @lsmrule has been successfully set,
1248 * -EINVAL in case of an invalid rule.
1250 * @audit_rule_known:
1251 * Specifies whether given @rule contains any fields related to current LSM.
1252 * @rule contains the audit rule of interest.
1253 * Return 1 in case of relation found, 0 otherwise.
1255 * @audit_rule_match:
1256 * Determine if given @secid matches a rule previously approved
1257 * by @audit_rule_known.
1258 * @secid contains the security id in question.
1259 * @field contains the field which relates to current LSM.
1260 * @op contains the operator that will be used for matching.
1261 * @rule points to the audit rule that will be checked against.
1262 * @actx points to the audit context associated with the check.
1263 * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1266 * Deallocate the LSM audit rule structure previously allocated by
1268 * @rule contains the allocated rule
1270 * This is the main security structure.
1272 struct security_operations
{
1273 int (*ptrace
) (struct task_struct
* parent
, struct task_struct
* child
);
1274 int (*capget
) (struct task_struct
* target
,
1275 kernel_cap_t
* effective
,
1276 kernel_cap_t
* inheritable
, kernel_cap_t
* permitted
);
1277 int (*capset_check
) (struct task_struct
* target
,
1278 kernel_cap_t
* effective
,
1279 kernel_cap_t
* inheritable
,
1280 kernel_cap_t
* permitted
);
1281 void (*capset_set
) (struct task_struct
* target
,
1282 kernel_cap_t
* effective
,
1283 kernel_cap_t
* inheritable
,
1284 kernel_cap_t
* permitted
);
1285 int (*capable
) (struct task_struct
* tsk
, int cap
);
1286 int (*acct
) (struct file
* file
);
1287 int (*sysctl
) (struct ctl_table
* table
, int op
);
1288 int (*quotactl
) (int cmds
, int type
, int id
, struct super_block
* sb
);
1289 int (*quota_on
) (struct dentry
* dentry
);
1290 int (*syslog
) (int type
);
1291 int (*settime
) (struct timespec
*ts
, struct timezone
*tz
);
1292 int (*vm_enough_memory
) (struct mm_struct
*mm
, long pages
);
1294 int (*bprm_alloc_security
) (struct linux_binprm
* bprm
);
1295 void (*bprm_free_security
) (struct linux_binprm
* bprm
);
1296 void (*bprm_apply_creds
) (struct linux_binprm
* bprm
, int unsafe
);
1297 void (*bprm_post_apply_creds
) (struct linux_binprm
* bprm
);
1298 int (*bprm_set_security
) (struct linux_binprm
* bprm
);
1299 int (*bprm_check_security
) (struct linux_binprm
* bprm
);
1300 int (*bprm_secureexec
) (struct linux_binprm
* bprm
);
1302 int (*sb_alloc_security
) (struct super_block
* sb
);
1303 void (*sb_free_security
) (struct super_block
* sb
);
1304 int (*sb_copy_data
)(char *orig
, char *copy
);
1305 int (*sb_kern_mount
) (struct super_block
*sb
, void *data
);
1306 int (*sb_statfs
) (struct dentry
*dentry
);
1307 int (*sb_mount
) (char *dev_name
, struct nameidata
* nd
,
1308 char *type
, unsigned long flags
, void *data
);
1309 int (*sb_check_sb
) (struct vfsmount
* mnt
, struct nameidata
* nd
);
1310 int (*sb_umount
) (struct vfsmount
* mnt
, int flags
);
1311 void (*sb_umount_close
) (struct vfsmount
* mnt
);
1312 void (*sb_umount_busy
) (struct vfsmount
* mnt
);
1313 void (*sb_post_remount
) (struct vfsmount
* mnt
,
1314 unsigned long flags
, void *data
);
1315 void (*sb_post_addmount
) (struct vfsmount
* mnt
,
1316 struct nameidata
* mountpoint_nd
);
1317 int (*sb_pivotroot
) (struct nameidata
* old_nd
,
1318 struct nameidata
* new_nd
);
1319 void (*sb_post_pivotroot
) (struct nameidata
* old_nd
,
1320 struct nameidata
* new_nd
);
1321 int (*sb_get_mnt_opts
) (const struct super_block
*sb
,
1322 struct security_mnt_opts
*opts
);
1323 int (*sb_set_mnt_opts
) (struct super_block
*sb
,
1324 struct security_mnt_opts
*opts
);
1325 void (*sb_clone_mnt_opts
) (const struct super_block
*oldsb
,
1326 struct super_block
*newsb
);
1327 int (*sb_parse_opts_str
) (char *options
, struct security_mnt_opts
*opts
);
1329 int (*inode_alloc_security
) (struct inode
*inode
);
1330 void (*inode_free_security
) (struct inode
*inode
);
1331 int (*inode_init_security
) (struct inode
*inode
, struct inode
*dir
,
1332 char **name
, void **value
, size_t *len
);
1333 int (*inode_create
) (struct inode
*dir
,
1334 struct dentry
*dentry
, int mode
);
1335 int (*inode_link
) (struct dentry
*old_dentry
,
1336 struct inode
*dir
, struct dentry
*new_dentry
);
1337 int (*inode_unlink
) (struct inode
*dir
, struct dentry
*dentry
);
1338 int (*inode_symlink
) (struct inode
*dir
,
1339 struct dentry
*dentry
, const char *old_name
);
1340 int (*inode_mkdir
) (struct inode
*dir
, struct dentry
*dentry
, int mode
);
1341 int (*inode_rmdir
) (struct inode
*dir
, struct dentry
*dentry
);
1342 int (*inode_mknod
) (struct inode
*dir
, struct dentry
*dentry
,
1343 int mode
, dev_t dev
);
1344 int (*inode_rename
) (struct inode
*old_dir
, struct dentry
*old_dentry
,
1345 struct inode
*new_dir
, struct dentry
*new_dentry
);
1346 int (*inode_readlink
) (struct dentry
*dentry
);
1347 int (*inode_follow_link
) (struct dentry
*dentry
, struct nameidata
*nd
);
1348 int (*inode_permission
) (struct inode
*inode
, int mask
, struct nameidata
*nd
);
1349 int (*inode_setattr
) (struct dentry
*dentry
, struct iattr
*attr
);
1350 int (*inode_getattr
) (struct vfsmount
*mnt
, struct dentry
*dentry
);
1351 void (*inode_delete
) (struct inode
*inode
);
1352 int (*inode_setxattr
) (struct dentry
*dentry
, char *name
, void *value
,
1353 size_t size
, int flags
);
1354 void (*inode_post_setxattr
) (struct dentry
*dentry
, char *name
, void *value
,
1355 size_t size
, int flags
);
1356 int (*inode_getxattr
) (struct dentry
*dentry
, char *name
);
1357 int (*inode_listxattr
) (struct dentry
*dentry
);
1358 int (*inode_removexattr
) (struct dentry
*dentry
, char *name
);
1359 int (*inode_need_killpriv
) (struct dentry
*dentry
);
1360 int (*inode_killpriv
) (struct dentry
*dentry
);
1361 int (*inode_getsecurity
)(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
1362 int (*inode_setsecurity
)(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
1363 int (*inode_listsecurity
)(struct inode
*inode
, char *buffer
, size_t buffer_size
);
1364 void (*inode_getsecid
)(const struct inode
*inode
, u32
*secid
);
1366 int (*file_permission
) (struct file
* file
, int mask
);
1367 int (*file_alloc_security
) (struct file
* file
);
1368 void (*file_free_security
) (struct file
* file
);
1369 int (*file_ioctl
) (struct file
* file
, unsigned int cmd
,
1371 int (*file_mmap
) (struct file
* file
,
1372 unsigned long reqprot
, unsigned long prot
,
1373 unsigned long flags
, unsigned long addr
,
1374 unsigned long addr_only
);
1375 int (*file_mprotect
) (struct vm_area_struct
* vma
,
1376 unsigned long reqprot
,
1377 unsigned long prot
);
1378 int (*file_lock
) (struct file
* file
, unsigned int cmd
);
1379 int (*file_fcntl
) (struct file
* file
, unsigned int cmd
,
1381 int (*file_set_fowner
) (struct file
* file
);
1382 int (*file_send_sigiotask
) (struct task_struct
* tsk
,
1383 struct fown_struct
* fown
, int sig
);
1384 int (*file_receive
) (struct file
* file
);
1385 int (*dentry_open
) (struct file
*file
);
1387 int (*task_create
) (unsigned long clone_flags
);
1388 int (*task_alloc_security
) (struct task_struct
* p
);
1389 void (*task_free_security
) (struct task_struct
* p
);
1390 int (*task_setuid
) (uid_t id0
, uid_t id1
, uid_t id2
, int flags
);
1391 int (*task_post_setuid
) (uid_t old_ruid
/* or fsuid */ ,
1392 uid_t old_euid
, uid_t old_suid
, int flags
);
1393 int (*task_setgid
) (gid_t id0
, gid_t id1
, gid_t id2
, int flags
);
1394 int (*task_setpgid
) (struct task_struct
* p
, pid_t pgid
);
1395 int (*task_getpgid
) (struct task_struct
* p
);
1396 int (*task_getsid
) (struct task_struct
* p
);
1397 void (*task_getsecid
) (struct task_struct
* p
, u32
* secid
);
1398 int (*task_setgroups
) (struct group_info
*group_info
);
1399 int (*task_setnice
) (struct task_struct
* p
, int nice
);
1400 int (*task_setioprio
) (struct task_struct
* p
, int ioprio
);
1401 int (*task_getioprio
) (struct task_struct
* p
);
1402 int (*task_setrlimit
) (unsigned int resource
, struct rlimit
* new_rlim
);
1403 int (*task_setscheduler
) (struct task_struct
* p
, int policy
,
1404 struct sched_param
* lp
);
1405 int (*task_getscheduler
) (struct task_struct
* p
);
1406 int (*task_movememory
) (struct task_struct
* p
);
1407 int (*task_kill
) (struct task_struct
* p
,
1408 struct siginfo
* info
, int sig
, u32 secid
);
1409 int (*task_wait
) (struct task_struct
* p
);
1410 int (*task_prctl
) (int option
, unsigned long arg2
,
1411 unsigned long arg3
, unsigned long arg4
,
1412 unsigned long arg5
);
1413 void (*task_reparent_to_init
) (struct task_struct
* p
);
1414 void (*task_to_inode
)(struct task_struct
*p
, struct inode
*inode
);
1416 int (*ipc_permission
) (struct kern_ipc_perm
* ipcp
, short flag
);
1417 void (*ipc_getsecid
) (struct kern_ipc_perm
*ipcp
, u32
*secid
);
1419 int (*msg_msg_alloc_security
) (struct msg_msg
* msg
);
1420 void (*msg_msg_free_security
) (struct msg_msg
* msg
);
1422 int (*msg_queue_alloc_security
) (struct msg_queue
* msq
);
1423 void (*msg_queue_free_security
) (struct msg_queue
* msq
);
1424 int (*msg_queue_associate
) (struct msg_queue
* msq
, int msqflg
);
1425 int (*msg_queue_msgctl
) (struct msg_queue
* msq
, int cmd
);
1426 int (*msg_queue_msgsnd
) (struct msg_queue
* msq
,
1427 struct msg_msg
* msg
, int msqflg
);
1428 int (*msg_queue_msgrcv
) (struct msg_queue
* msq
,
1429 struct msg_msg
* msg
,
1430 struct task_struct
* target
,
1431 long type
, int mode
);
1433 int (*shm_alloc_security
) (struct shmid_kernel
* shp
);
1434 void (*shm_free_security
) (struct shmid_kernel
* shp
);
1435 int (*shm_associate
) (struct shmid_kernel
* shp
, int shmflg
);
1436 int (*shm_shmctl
) (struct shmid_kernel
* shp
, int cmd
);
1437 int (*shm_shmat
) (struct shmid_kernel
* shp
,
1438 char __user
*shmaddr
, int shmflg
);
1440 int (*sem_alloc_security
) (struct sem_array
* sma
);
1441 void (*sem_free_security
) (struct sem_array
* sma
);
1442 int (*sem_associate
) (struct sem_array
* sma
, int semflg
);
1443 int (*sem_semctl
) (struct sem_array
* sma
, int cmd
);
1444 int (*sem_semop
) (struct sem_array
* sma
,
1445 struct sembuf
* sops
, unsigned nsops
, int alter
);
1447 int (*netlink_send
) (struct sock
* sk
, struct sk_buff
* skb
);
1448 int (*netlink_recv
) (struct sk_buff
* skb
, int cap
);
1450 /* allow module stacking */
1451 int (*register_security
) (const char *name
,
1452 struct security_operations
*ops
);
1454 void (*d_instantiate
) (struct dentry
*dentry
, struct inode
*inode
);
1456 int (*getprocattr
)(struct task_struct
*p
, char *name
, char **value
);
1457 int (*setprocattr
)(struct task_struct
*p
, char *name
, void *value
, size_t size
);
1458 int (*secid_to_secctx
)(u32 secid
, char **secdata
, u32
*seclen
);
1459 int (*secctx_to_secid
)(char *secdata
, u32 seclen
, u32
*secid
);
1460 void (*release_secctx
)(char *secdata
, u32 seclen
);
1462 #ifdef CONFIG_SECURITY_NETWORK
1463 int (*unix_stream_connect
) (struct socket
* sock
,
1464 struct socket
* other
, struct sock
* newsk
);
1465 int (*unix_may_send
) (struct socket
* sock
, struct socket
* other
);
1467 int (*socket_create
) (int family
, int type
, int protocol
, int kern
);
1468 int (*socket_post_create
) (struct socket
* sock
, int family
,
1469 int type
, int protocol
, int kern
);
1470 int (*socket_bind
) (struct socket
* sock
,
1471 struct sockaddr
* address
, int addrlen
);
1472 int (*socket_connect
) (struct socket
* sock
,
1473 struct sockaddr
* address
, int addrlen
);
1474 int (*socket_listen
) (struct socket
* sock
, int backlog
);
1475 int (*socket_accept
) (struct socket
* sock
, struct socket
* newsock
);
1476 void (*socket_post_accept
) (struct socket
* sock
,
1477 struct socket
* newsock
);
1478 int (*socket_sendmsg
) (struct socket
* sock
,
1479 struct msghdr
* msg
, int size
);
1480 int (*socket_recvmsg
) (struct socket
* sock
,
1481 struct msghdr
* msg
, int size
, int flags
);
1482 int (*socket_getsockname
) (struct socket
* sock
);
1483 int (*socket_getpeername
) (struct socket
* sock
);
1484 int (*socket_getsockopt
) (struct socket
* sock
, int level
, int optname
);
1485 int (*socket_setsockopt
) (struct socket
* sock
, int level
, int optname
);
1486 int (*socket_shutdown
) (struct socket
* sock
, int how
);
1487 int (*socket_sock_rcv_skb
) (struct sock
* sk
, struct sk_buff
* skb
);
1488 int (*socket_getpeersec_stream
) (struct socket
*sock
, char __user
*optval
, int __user
*optlen
, unsigned len
);
1489 int (*socket_getpeersec_dgram
) (struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
1490 int (*sk_alloc_security
) (struct sock
*sk
, int family
, gfp_t priority
);
1491 void (*sk_free_security
) (struct sock
*sk
);
1492 void (*sk_clone_security
) (const struct sock
*sk
, struct sock
*newsk
);
1493 void (*sk_getsecid
) (struct sock
*sk
, u32
*secid
);
1494 void (*sock_graft
)(struct sock
* sk
, struct socket
*parent
);
1495 int (*inet_conn_request
)(struct sock
*sk
, struct sk_buff
*skb
,
1496 struct request_sock
*req
);
1497 void (*inet_csk_clone
)(struct sock
*newsk
, const struct request_sock
*req
);
1498 void (*inet_conn_established
)(struct sock
*sk
, struct sk_buff
*skb
);
1499 void (*req_classify_flow
)(const struct request_sock
*req
, struct flowi
*fl
);
1500 #endif /* CONFIG_SECURITY_NETWORK */
1502 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1503 int (*xfrm_policy_alloc_security
) (struct xfrm_policy
*xp
,
1504 struct xfrm_user_sec_ctx
*sec_ctx
);
1505 int (*xfrm_policy_clone_security
) (struct xfrm_policy
*old
, struct xfrm_policy
*new);
1506 void (*xfrm_policy_free_security
) (struct xfrm_policy
*xp
);
1507 int (*xfrm_policy_delete_security
) (struct xfrm_policy
*xp
);
1508 int (*xfrm_state_alloc_security
) (struct xfrm_state
*x
,
1509 struct xfrm_user_sec_ctx
*sec_ctx
,
1511 void (*xfrm_state_free_security
) (struct xfrm_state
*x
);
1512 int (*xfrm_state_delete_security
) (struct xfrm_state
*x
);
1513 int (*xfrm_policy_lookup
)(struct xfrm_policy
*xp
, u32 fl_secid
, u8 dir
);
1514 int (*xfrm_state_pol_flow_match
)(struct xfrm_state
*x
,
1515 struct xfrm_policy
*xp
, struct flowi
*fl
);
1516 int (*xfrm_decode_session
)(struct sk_buff
*skb
, u32
*secid
, int ckall
);
1517 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1519 /* key management security hooks */
1521 int (*key_alloc
)(struct key
*key
, struct task_struct
*tsk
, unsigned long flags
);
1522 void (*key_free
)(struct key
*key
);
1523 int (*key_permission
)(key_ref_t key_ref
,
1524 struct task_struct
*context
,
1527 #endif /* CONFIG_KEYS */
1530 int (*audit_rule_init
)(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
1531 int (*audit_rule_known
)(struct audit_krule
*krule
);
1532 int (*audit_rule_match
)(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1533 struct audit_context
*actx
);
1534 void (*audit_rule_free
)(void *lsmrule
);
1535 #endif /* CONFIG_AUDIT */
1539 extern int security_init (void);
1540 extern int register_security (struct security_operations
*ops
);
1541 extern int mod_reg_security (const char *name
, struct security_operations
*ops
);
1542 extern struct dentry
*securityfs_create_file(const char *name
, mode_t mode
,
1543 struct dentry
*parent
, void *data
,
1544 const struct file_operations
*fops
);
1545 extern struct dentry
*securityfs_create_dir(const char *name
, struct dentry
*parent
);
1546 extern void securityfs_remove(struct dentry
*dentry
);
1549 /* Security operations */
1550 int security_ptrace(struct task_struct
*parent
, struct task_struct
*child
);
1551 int security_capget(struct task_struct
*target
,
1552 kernel_cap_t
*effective
,
1553 kernel_cap_t
*inheritable
,
1554 kernel_cap_t
*permitted
);
1555 int security_capset_check(struct task_struct
*target
,
1556 kernel_cap_t
*effective
,
1557 kernel_cap_t
*inheritable
,
1558 kernel_cap_t
*permitted
);
1559 void security_capset_set(struct task_struct
*target
,
1560 kernel_cap_t
*effective
,
1561 kernel_cap_t
*inheritable
,
1562 kernel_cap_t
*permitted
);
1563 int security_capable(struct task_struct
*tsk
, int cap
);
1564 int security_acct(struct file
*file
);
1565 int security_sysctl(struct ctl_table
*table
, int op
);
1566 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
);
1567 int security_quota_on(struct dentry
*dentry
);
1568 int security_syslog(int type
);
1569 int security_settime(struct timespec
*ts
, struct timezone
*tz
);
1570 int security_vm_enough_memory(long pages
);
1571 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
);
1572 int security_bprm_alloc(struct linux_binprm
*bprm
);
1573 void security_bprm_free(struct linux_binprm
*bprm
);
1574 void security_bprm_apply_creds(struct linux_binprm
*bprm
, int unsafe
);
1575 void security_bprm_post_apply_creds(struct linux_binprm
*bprm
);
1576 int security_bprm_set(struct linux_binprm
*bprm
);
1577 int security_bprm_check(struct linux_binprm
*bprm
);
1578 int security_bprm_secureexec(struct linux_binprm
*bprm
);
1579 int security_sb_alloc(struct super_block
*sb
);
1580 void security_sb_free(struct super_block
*sb
);
1581 int security_sb_copy_data(char *orig
, char *copy
);
1582 int security_sb_kern_mount(struct super_block
*sb
, void *data
);
1583 int security_sb_statfs(struct dentry
*dentry
);
1584 int security_sb_mount(char *dev_name
, struct nameidata
*nd
,
1585 char *type
, unsigned long flags
, void *data
);
1586 int security_sb_check_sb(struct vfsmount
*mnt
, struct nameidata
*nd
);
1587 int security_sb_umount(struct vfsmount
*mnt
, int flags
);
1588 void security_sb_umount_close(struct vfsmount
*mnt
);
1589 void security_sb_umount_busy(struct vfsmount
*mnt
);
1590 void security_sb_post_remount(struct vfsmount
*mnt
, unsigned long flags
, void *data
);
1591 void security_sb_post_addmount(struct vfsmount
*mnt
, struct nameidata
*mountpoint_nd
);
1592 int security_sb_pivotroot(struct nameidata
*old_nd
, struct nameidata
*new_nd
);
1593 void security_sb_post_pivotroot(struct nameidata
*old_nd
, struct nameidata
*new_nd
);
1594 int security_sb_get_mnt_opts(const struct super_block
*sb
,
1595 struct security_mnt_opts
*opts
);
1596 int security_sb_set_mnt_opts(struct super_block
*sb
, struct security_mnt_opts
*opts
);
1597 void security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
1598 struct super_block
*newsb
);
1599 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
);
1601 int security_inode_alloc(struct inode
*inode
);
1602 void security_inode_free(struct inode
*inode
);
1603 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
1604 char **name
, void **value
, size_t *len
);
1605 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, int mode
);
1606 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
1607 struct dentry
*new_dentry
);
1608 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
);
1609 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
1610 const char *old_name
);
1611 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, int mode
);
1612 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
);
1613 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, int mode
, dev_t dev
);
1614 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
1615 struct inode
*new_dir
, struct dentry
*new_dentry
);
1616 int security_inode_readlink(struct dentry
*dentry
);
1617 int security_inode_follow_link(struct dentry
*dentry
, struct nameidata
*nd
);
1618 int security_inode_permission(struct inode
*inode
, int mask
, struct nameidata
*nd
);
1619 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
);
1620 int security_inode_getattr(struct vfsmount
*mnt
, struct dentry
*dentry
);
1621 void security_inode_delete(struct inode
*inode
);
1622 int security_inode_setxattr(struct dentry
*dentry
, char *name
,
1623 void *value
, size_t size
, int flags
);
1624 void security_inode_post_setxattr(struct dentry
*dentry
, char *name
,
1625 void *value
, size_t size
, int flags
);
1626 int security_inode_getxattr(struct dentry
*dentry
, char *name
);
1627 int security_inode_listxattr(struct dentry
*dentry
);
1628 int security_inode_removexattr(struct dentry
*dentry
, char *name
);
1629 int security_inode_need_killpriv(struct dentry
*dentry
);
1630 int security_inode_killpriv(struct dentry
*dentry
);
1631 int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
);
1632 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
);
1633 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
);
1634 void security_inode_getsecid(const struct inode
*inode
, u32
*secid
);
1635 int security_file_permission(struct file
*file
, int mask
);
1636 int security_file_alloc(struct file
*file
);
1637 void security_file_free(struct file
*file
);
1638 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
1639 int security_file_mmap(struct file
*file
, unsigned long reqprot
,
1640 unsigned long prot
, unsigned long flags
,
1641 unsigned long addr
, unsigned long addr_only
);
1642 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
1643 unsigned long prot
);
1644 int security_file_lock(struct file
*file
, unsigned int cmd
);
1645 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
1646 int security_file_set_fowner(struct file
*file
);
1647 int security_file_send_sigiotask(struct task_struct
*tsk
,
1648 struct fown_struct
*fown
, int sig
);
1649 int security_file_receive(struct file
*file
);
1650 int security_dentry_open(struct file
*file
);
1651 int security_task_create(unsigned long clone_flags
);
1652 int security_task_alloc(struct task_struct
*p
);
1653 void security_task_free(struct task_struct
*p
);
1654 int security_task_setuid(uid_t id0
, uid_t id1
, uid_t id2
, int flags
);
1655 int security_task_post_setuid(uid_t old_ruid
, uid_t old_euid
,
1656 uid_t old_suid
, int flags
);
1657 int security_task_setgid(gid_t id0
, gid_t id1
, gid_t id2
, int flags
);
1658 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
);
1659 int security_task_getpgid(struct task_struct
*p
);
1660 int security_task_getsid(struct task_struct
*p
);
1661 void security_task_getsecid(struct task_struct
*p
, u32
*secid
);
1662 int security_task_setgroups(struct group_info
*group_info
);
1663 int security_task_setnice(struct task_struct
*p
, int nice
);
1664 int security_task_setioprio(struct task_struct
*p
, int ioprio
);
1665 int security_task_getioprio(struct task_struct
*p
);
1666 int security_task_setrlimit(unsigned int resource
, struct rlimit
*new_rlim
);
1667 int security_task_setscheduler(struct task_struct
*p
,
1668 int policy
, struct sched_param
*lp
);
1669 int security_task_getscheduler(struct task_struct
*p
);
1670 int security_task_movememory(struct task_struct
*p
);
1671 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
1672 int sig
, u32 secid
);
1673 int security_task_wait(struct task_struct
*p
);
1674 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
1675 unsigned long arg4
, unsigned long arg5
);
1676 void security_task_reparent_to_init(struct task_struct
*p
);
1677 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
);
1678 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
);
1679 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
);
1680 int security_msg_msg_alloc(struct msg_msg
*msg
);
1681 void security_msg_msg_free(struct msg_msg
*msg
);
1682 int security_msg_queue_alloc(struct msg_queue
*msq
);
1683 void security_msg_queue_free(struct msg_queue
*msq
);
1684 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
);
1685 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
);
1686 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1687 struct msg_msg
*msg
, int msqflg
);
1688 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
1689 struct task_struct
*target
, long type
, int mode
);
1690 int security_shm_alloc(struct shmid_kernel
*shp
);
1691 void security_shm_free(struct shmid_kernel
*shp
);
1692 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
);
1693 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
);
1694 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
);
1695 int security_sem_alloc(struct sem_array
*sma
);
1696 void security_sem_free(struct sem_array
*sma
);
1697 int security_sem_associate(struct sem_array
*sma
, int semflg
);
1698 int security_sem_semctl(struct sem_array
*sma
, int cmd
);
1699 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
1700 unsigned nsops
, int alter
);
1701 void security_d_instantiate (struct dentry
*dentry
, struct inode
*inode
);
1702 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
);
1703 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
);
1704 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
);
1705 int security_netlink_recv(struct sk_buff
*skb
, int cap
);
1706 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
);
1707 int security_secctx_to_secid(char *secdata
, u32 seclen
, u32
*secid
);
1708 void security_release_secctx(char *secdata
, u32 seclen
);
1710 #else /* CONFIG_SECURITY */
1711 struct security_mnt_opts
{
1714 static inline void security_init_mnt_opts(struct security_mnt_opts
*opts
)
1718 static inline void security_free_mnt_opts(struct security_mnt_opts
*opts
)
1723 * This is the default capabilities functionality. Most of these functions
1724 * are just stubbed out, but a few must call the proper capable code.
1727 static inline int security_init(void)
1732 static inline int security_ptrace (struct task_struct
*parent
, struct task_struct
* child
)
1734 return cap_ptrace (parent
, child
);
1737 static inline int security_capget (struct task_struct
*target
,
1738 kernel_cap_t
*effective
,
1739 kernel_cap_t
*inheritable
,
1740 kernel_cap_t
*permitted
)
1742 return cap_capget (target
, effective
, inheritable
, permitted
);
1745 static inline int security_capset_check (struct task_struct
*target
,
1746 kernel_cap_t
*effective
,
1747 kernel_cap_t
*inheritable
,
1748 kernel_cap_t
*permitted
)
1750 return cap_capset_check (target
, effective
, inheritable
, permitted
);
1753 static inline void security_capset_set (struct task_struct
*target
,
1754 kernel_cap_t
*effective
,
1755 kernel_cap_t
*inheritable
,
1756 kernel_cap_t
*permitted
)
1758 cap_capset_set (target
, effective
, inheritable
, permitted
);
1761 static inline int security_capable(struct task_struct
*tsk
, int cap
)
1763 return cap_capable(tsk
, cap
);
1766 static inline int security_acct (struct file
*file
)
1771 static inline int security_sysctl(struct ctl_table
*table
, int op
)
1776 static inline int security_quotactl (int cmds
, int type
, int id
,
1777 struct super_block
* sb
)
1782 static inline int security_quota_on (struct dentry
* dentry
)
1787 static inline int security_syslog(int type
)
1789 return cap_syslog(type
);
1792 static inline int security_settime(struct timespec
*ts
, struct timezone
*tz
)
1794 return cap_settime(ts
, tz
);
1797 static inline int security_vm_enough_memory(long pages
)
1799 return cap_vm_enough_memory(current
->mm
, pages
);
1802 static inline int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
1804 return cap_vm_enough_memory(mm
, pages
);
1807 static inline int security_bprm_alloc (struct linux_binprm
*bprm
)
1812 static inline void security_bprm_free (struct linux_binprm
*bprm
)
1815 static inline void security_bprm_apply_creds (struct linux_binprm
*bprm
, int unsafe
)
1817 cap_bprm_apply_creds (bprm
, unsafe
);
1820 static inline void security_bprm_post_apply_creds (struct linux_binprm
*bprm
)
1825 static inline int security_bprm_set (struct linux_binprm
*bprm
)
1827 return cap_bprm_set_security (bprm
);
1830 static inline int security_bprm_check (struct linux_binprm
*bprm
)
1835 static inline int security_bprm_secureexec (struct linux_binprm
*bprm
)
1837 return cap_bprm_secureexec(bprm
);
1840 static inline int security_sb_alloc (struct super_block
*sb
)
1845 static inline void security_sb_free (struct super_block
*sb
)
1848 static inline int security_sb_copy_data (char *orig
, char *copy
)
1853 static inline int security_sb_kern_mount (struct super_block
*sb
, void *data
)
1858 static inline int security_sb_statfs (struct dentry
*dentry
)
1863 static inline int security_sb_mount (char *dev_name
, struct nameidata
*nd
,
1864 char *type
, unsigned long flags
,
1870 static inline int security_sb_check_sb (struct vfsmount
*mnt
,
1871 struct nameidata
*nd
)
1876 static inline int security_sb_umount (struct vfsmount
*mnt
, int flags
)
1881 static inline void security_sb_umount_close (struct vfsmount
*mnt
)
1884 static inline void security_sb_umount_busy (struct vfsmount
*mnt
)
1887 static inline void security_sb_post_remount (struct vfsmount
*mnt
,
1888 unsigned long flags
, void *data
)
1891 static inline void security_sb_post_addmount (struct vfsmount
*mnt
,
1892 struct nameidata
*mountpoint_nd
)
1895 static inline int security_sb_pivotroot (struct nameidata
*old_nd
,
1896 struct nameidata
*new_nd
)
1901 static inline void security_sb_post_pivotroot (struct nameidata
*old_nd
,
1902 struct nameidata
*new_nd
)
1904 static inline int security_sb_get_mnt_opts(const struct super_block
*sb
,
1905 struct security_mnt_opts
*opts
)
1907 security_init_mnt_opts(opts
);
1911 static inline int security_sb_set_mnt_opts(struct super_block
*sb
,
1912 struct security_mnt_opts
*opts
)
1917 static inline void security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
1918 struct super_block
*newsb
)
1921 static inline int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
1926 static inline int security_inode_alloc (struct inode
*inode
)
1931 static inline void security_inode_free (struct inode
*inode
)
1934 static inline int security_inode_init_security (struct inode
*inode
,
1943 static inline int security_inode_create (struct inode
*dir
,
1944 struct dentry
*dentry
,
1950 static inline int security_inode_link (struct dentry
*old_dentry
,
1952 struct dentry
*new_dentry
)
1957 static inline int security_inode_unlink (struct inode
*dir
,
1958 struct dentry
*dentry
)
1963 static inline int security_inode_symlink (struct inode
*dir
,
1964 struct dentry
*dentry
,
1965 const char *old_name
)
1970 static inline int security_inode_mkdir (struct inode
*dir
,
1971 struct dentry
*dentry
,
1977 static inline int security_inode_rmdir (struct inode
*dir
,
1978 struct dentry
*dentry
)
1983 static inline int security_inode_mknod (struct inode
*dir
,
1984 struct dentry
*dentry
,
1985 int mode
, dev_t dev
)
1990 static inline int security_inode_rename (struct inode
*old_dir
,
1991 struct dentry
*old_dentry
,
1992 struct inode
*new_dir
,
1993 struct dentry
*new_dentry
)
1998 static inline int security_inode_readlink (struct dentry
*dentry
)
2003 static inline int security_inode_follow_link (struct dentry
*dentry
,
2004 struct nameidata
*nd
)
2009 static inline int security_inode_permission (struct inode
*inode
, int mask
,
2010 struct nameidata
*nd
)
2015 static inline int security_inode_setattr (struct dentry
*dentry
,
2021 static inline int security_inode_getattr (struct vfsmount
*mnt
,
2022 struct dentry
*dentry
)
2027 static inline void security_inode_delete (struct inode
*inode
)
2030 static inline int security_inode_setxattr (struct dentry
*dentry
, char *name
,
2031 void *value
, size_t size
, int flags
)
2033 return cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
2036 static inline void security_inode_post_setxattr (struct dentry
*dentry
, char *name
,
2037 void *value
, size_t size
, int flags
)
2040 static inline int security_inode_getxattr (struct dentry
*dentry
, char *name
)
2045 static inline int security_inode_listxattr (struct dentry
*dentry
)
2050 static inline int security_inode_removexattr (struct dentry
*dentry
, char *name
)
2052 return cap_inode_removexattr(dentry
, name
);
2055 static inline int security_inode_need_killpriv(struct dentry
*dentry
)
2057 return cap_inode_need_killpriv(dentry
);
2060 static inline int security_inode_killpriv(struct dentry
*dentry
)
2062 return cap_inode_killpriv(dentry
);
2065 static inline int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
2070 static inline int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
2075 static inline int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
2080 static inline void security_inode_getsecid(const struct inode
*inode
, u32
*secid
)
2085 static inline int security_file_permission (struct file
*file
, int mask
)
2090 static inline int security_file_alloc (struct file
*file
)
2095 static inline void security_file_free (struct file
*file
)
2098 static inline int security_file_ioctl (struct file
*file
, unsigned int cmd
,
2104 static inline int security_file_mmap (struct file
*file
, unsigned long reqprot
,
2106 unsigned long flags
,
2108 unsigned long addr_only
)
2113 static inline int security_file_mprotect (struct vm_area_struct
*vma
,
2114 unsigned long reqprot
,
2120 static inline int security_file_lock (struct file
*file
, unsigned int cmd
)
2125 static inline int security_file_fcntl (struct file
*file
, unsigned int cmd
,
2131 static inline int security_file_set_fowner (struct file
*file
)
2136 static inline int security_file_send_sigiotask (struct task_struct
*tsk
,
2137 struct fown_struct
*fown
,
2143 static inline int security_file_receive (struct file
*file
)
2148 static inline int security_dentry_open (struct file
*file
)
2153 static inline int security_task_create (unsigned long clone_flags
)
2158 static inline int security_task_alloc (struct task_struct
*p
)
2163 static inline void security_task_free (struct task_struct
*p
)
2166 static inline int security_task_setuid (uid_t id0
, uid_t id1
, uid_t id2
,
2172 static inline int security_task_post_setuid (uid_t old_ruid
, uid_t old_euid
,
2173 uid_t old_suid
, int flags
)
2175 return cap_task_post_setuid (old_ruid
, old_euid
, old_suid
, flags
);
2178 static inline int security_task_setgid (gid_t id0
, gid_t id1
, gid_t id2
,
2184 static inline int security_task_setpgid (struct task_struct
*p
, pid_t pgid
)
2189 static inline int security_task_getpgid (struct task_struct
*p
)
2194 static inline int security_task_getsid (struct task_struct
*p
)
2199 static inline void security_task_getsecid (struct task_struct
*p
, u32
*secid
)
2204 static inline int security_task_setgroups (struct group_info
*group_info
)
2209 static inline int security_task_setnice (struct task_struct
*p
, int nice
)
2211 return cap_task_setnice(p
, nice
);
2214 static inline int security_task_setioprio (struct task_struct
*p
, int ioprio
)
2216 return cap_task_setioprio(p
, ioprio
);
2219 static inline int security_task_getioprio (struct task_struct
*p
)
2224 static inline int security_task_setrlimit (unsigned int resource
,
2225 struct rlimit
*new_rlim
)
2230 static inline int security_task_setscheduler (struct task_struct
*p
,
2232 struct sched_param
*lp
)
2234 return cap_task_setscheduler(p
, policy
, lp
);
2237 static inline int security_task_getscheduler (struct task_struct
*p
)
2242 static inline int security_task_movememory (struct task_struct
*p
)
2247 static inline int security_task_kill (struct task_struct
*p
,
2248 struct siginfo
*info
, int sig
,
2254 static inline int security_task_wait (struct task_struct
*p
)
2259 static inline int security_task_prctl (int option
, unsigned long arg2
,
2267 static inline void security_task_reparent_to_init (struct task_struct
*p
)
2269 cap_task_reparent_to_init (p
);
2272 static inline void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
2275 static inline int security_ipc_permission (struct kern_ipc_perm
*ipcp
,
2281 static inline void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
2286 static inline int security_msg_msg_alloc (struct msg_msg
* msg
)
2291 static inline void security_msg_msg_free (struct msg_msg
* msg
)
2294 static inline int security_msg_queue_alloc (struct msg_queue
*msq
)
2299 static inline void security_msg_queue_free (struct msg_queue
*msq
)
2302 static inline int security_msg_queue_associate (struct msg_queue
* msq
,
2308 static inline int security_msg_queue_msgctl (struct msg_queue
* msq
, int cmd
)
2313 static inline int security_msg_queue_msgsnd (struct msg_queue
* msq
,
2314 struct msg_msg
* msg
, int msqflg
)
2319 static inline int security_msg_queue_msgrcv (struct msg_queue
* msq
,
2320 struct msg_msg
* msg
,
2321 struct task_struct
* target
,
2322 long type
, int mode
)
2327 static inline int security_shm_alloc (struct shmid_kernel
*shp
)
2332 static inline void security_shm_free (struct shmid_kernel
*shp
)
2335 static inline int security_shm_associate (struct shmid_kernel
* shp
,
2341 static inline int security_shm_shmctl (struct shmid_kernel
* shp
, int cmd
)
2346 static inline int security_shm_shmat (struct shmid_kernel
* shp
,
2347 char __user
*shmaddr
, int shmflg
)
2352 static inline int security_sem_alloc (struct sem_array
*sma
)
2357 static inline void security_sem_free (struct sem_array
*sma
)
2360 static inline int security_sem_associate (struct sem_array
* sma
, int semflg
)
2365 static inline int security_sem_semctl (struct sem_array
* sma
, int cmd
)
2370 static inline int security_sem_semop (struct sem_array
* sma
,
2371 struct sembuf
* sops
, unsigned nsops
,
2377 static inline void security_d_instantiate (struct dentry
*dentry
, struct inode
*inode
)
2380 static inline int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
2385 static inline int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
2390 static inline int security_netlink_send (struct sock
*sk
, struct sk_buff
*skb
)
2392 return cap_netlink_send (sk
, skb
);
2395 static inline int security_netlink_recv (struct sk_buff
*skb
, int cap
)
2397 return cap_netlink_recv (skb
, cap
);
2400 static inline struct dentry
*securityfs_create_dir(const char *name
,
2401 struct dentry
*parent
)
2403 return ERR_PTR(-ENODEV
);
2406 static inline struct dentry
*securityfs_create_file(const char *name
,
2408 struct dentry
*parent
,
2410 const struct file_operations
*fops
)
2412 return ERR_PTR(-ENODEV
);
2415 static inline void securityfs_remove(struct dentry
*dentry
)
2419 static inline int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
2424 static inline int security_secctx_to_secid(char *secdata
,
2431 static inline void security_release_secctx(char *secdata
, u32 seclen
)
2434 #endif /* CONFIG_SECURITY */
2436 #ifdef CONFIG_SECURITY_NETWORK
2438 int security_unix_stream_connect(struct socket
*sock
, struct socket
*other
,
2439 struct sock
*newsk
);
2440 int security_unix_may_send(struct socket
*sock
, struct socket
*other
);
2441 int security_socket_create(int family
, int type
, int protocol
, int kern
);
2442 int security_socket_post_create(struct socket
*sock
, int family
,
2443 int type
, int protocol
, int kern
);
2444 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
2445 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
);
2446 int security_socket_listen(struct socket
*sock
, int backlog
);
2447 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
);
2448 void security_socket_post_accept(struct socket
*sock
, struct socket
*newsock
);
2449 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
);
2450 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
2451 int size
, int flags
);
2452 int security_socket_getsockname(struct socket
*sock
);
2453 int security_socket_getpeername(struct socket
*sock
);
2454 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
);
2455 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
);
2456 int security_socket_shutdown(struct socket
*sock
, int how
);
2457 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
);
2458 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
2459 int __user
*optlen
, unsigned len
);
2460 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
);
2461 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
);
2462 void security_sk_free(struct sock
*sk
);
2463 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
);
2464 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
);
2465 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
);
2466 void security_sock_graft(struct sock
*sk
, struct socket
*parent
);
2467 int security_inet_conn_request(struct sock
*sk
,
2468 struct sk_buff
*skb
, struct request_sock
*req
);
2469 void security_inet_csk_clone(struct sock
*newsk
,
2470 const struct request_sock
*req
);
2471 void security_inet_conn_established(struct sock
*sk
,
2472 struct sk_buff
*skb
);
2474 #else /* CONFIG_SECURITY_NETWORK */
2475 static inline int security_unix_stream_connect(struct socket
* sock
,
2476 struct socket
* other
,
2477 struct sock
* newsk
)
2482 static inline int security_unix_may_send(struct socket
* sock
,
2483 struct socket
* other
)
2488 static inline int security_socket_create (int family
, int type
,
2489 int protocol
, int kern
)
2494 static inline int security_socket_post_create(struct socket
* sock
,
2497 int protocol
, int kern
)
2502 static inline int security_socket_bind(struct socket
* sock
,
2503 struct sockaddr
* address
,
2509 static inline int security_socket_connect(struct socket
* sock
,
2510 struct sockaddr
* address
,
2516 static inline int security_socket_listen(struct socket
* sock
, int backlog
)
2521 static inline int security_socket_accept(struct socket
* sock
,
2522 struct socket
* newsock
)
2527 static inline void security_socket_post_accept(struct socket
* sock
,
2528 struct socket
* newsock
)
2532 static inline int security_socket_sendmsg(struct socket
* sock
,
2533 struct msghdr
* msg
, int size
)
2538 static inline int security_socket_recvmsg(struct socket
* sock
,
2539 struct msghdr
* msg
, int size
,
2545 static inline int security_socket_getsockname(struct socket
* sock
)
2550 static inline int security_socket_getpeername(struct socket
* sock
)
2555 static inline int security_socket_getsockopt(struct socket
* sock
,
2556 int level
, int optname
)
2561 static inline int security_socket_setsockopt(struct socket
* sock
,
2562 int level
, int optname
)
2567 static inline int security_socket_shutdown(struct socket
* sock
, int how
)
2571 static inline int security_sock_rcv_skb (struct sock
* sk
,
2572 struct sk_buff
* skb
)
2577 static inline int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
2578 int __user
*optlen
, unsigned len
)
2580 return -ENOPROTOOPT
;
2583 static inline int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
2585 return -ENOPROTOOPT
;
2588 static inline int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
2593 static inline void security_sk_free(struct sock
*sk
)
2597 static inline void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
2601 static inline void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
2605 static inline void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
2609 static inline void security_sock_graft(struct sock
* sk
, struct socket
*parent
)
2613 static inline int security_inet_conn_request(struct sock
*sk
,
2614 struct sk_buff
*skb
, struct request_sock
*req
)
2619 static inline void security_inet_csk_clone(struct sock
*newsk
,
2620 const struct request_sock
*req
)
2624 static inline void security_inet_conn_established(struct sock
*sk
,
2625 struct sk_buff
*skb
)
2628 #endif /* CONFIG_SECURITY_NETWORK */
2630 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2632 int security_xfrm_policy_alloc(struct xfrm_policy
*xp
, struct xfrm_user_sec_ctx
*sec_ctx
);
2633 int security_xfrm_policy_clone(struct xfrm_policy
*old
, struct xfrm_policy
*new);
2634 void security_xfrm_policy_free(struct xfrm_policy
*xp
);
2635 int security_xfrm_policy_delete(struct xfrm_policy
*xp
);
2636 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
);
2637 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
2638 struct xfrm_sec_ctx
*polsec
, u32 secid
);
2639 int security_xfrm_state_delete(struct xfrm_state
*x
);
2640 void security_xfrm_state_free(struct xfrm_state
*x
);
2641 int security_xfrm_policy_lookup(struct xfrm_policy
*xp
, u32 fl_secid
, u8 dir
);
2642 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
2643 struct xfrm_policy
*xp
, struct flowi
*fl
);
2644 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
);
2645 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
);
2647 #else /* CONFIG_SECURITY_NETWORK_XFRM */
2649 static inline int security_xfrm_policy_alloc(struct xfrm_policy
*xp
, struct xfrm_user_sec_ctx
*sec_ctx
)
2654 static inline int security_xfrm_policy_clone(struct xfrm_policy
*old
, struct xfrm_policy
*new)
2659 static inline void security_xfrm_policy_free(struct xfrm_policy
*xp
)
2663 static inline int security_xfrm_policy_delete(struct xfrm_policy
*xp
)
2668 static inline int security_xfrm_state_alloc(struct xfrm_state
*x
,
2669 struct xfrm_user_sec_ctx
*sec_ctx
)
2674 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
2675 struct xfrm_sec_ctx
*polsec
, u32 secid
)
2680 static inline void security_xfrm_state_free(struct xfrm_state
*x
)
2684 static inline int security_xfrm_state_delete(struct xfrm_state
*x
)
2689 static inline int security_xfrm_policy_lookup(struct xfrm_policy
*xp
, u32 fl_secid
, u8 dir
)
2694 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
2695 struct xfrm_policy
*xp
, struct flowi
*fl
)
2700 static inline int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
2705 static inline void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
2709 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2712 #ifdef CONFIG_SECURITY
2714 int security_key_alloc(struct key
*key
, struct task_struct
*tsk
, unsigned long flags
);
2715 void security_key_free(struct key
*key
);
2716 int security_key_permission(key_ref_t key_ref
,
2717 struct task_struct
*context
, key_perm_t perm
);
2721 static inline int security_key_alloc(struct key
*key
,
2722 struct task_struct
*tsk
,
2723 unsigned long flags
)
2728 static inline void security_key_free(struct key
*key
)
2732 static inline int security_key_permission(key_ref_t key_ref
,
2733 struct task_struct
*context
,
2740 #endif /* CONFIG_KEYS */
2743 #ifdef CONFIG_SECURITY
2744 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
);
2745 int security_audit_rule_known(struct audit_krule
*krule
);
2746 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
2747 struct audit_context
*actx
);
2748 void security_audit_rule_free(void *lsmrule
);
2752 static inline int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
,
2758 static inline int security_audit_rule_known(struct audit_krule
*krule
)
2763 static inline int security_audit_rule_match(u32 secid
, u32 field
, u32 op
,
2764 void *lsmrule
, struct audit_context
*actx
)
2769 static inline void security_audit_rule_free(void *lsmrule
)
2772 #endif /* CONFIG_SECURITY */
2773 #endif /* CONFIG_AUDIT */
2775 #endif /* ! __LINUX_SECURITY_H */