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>
37 * These functions are in security/capability.c and are used
38 * as the default capabilities functions
40 extern int cap_capable (struct task_struct *tsk, int cap);
41 extern int cap_settime (struct timespec *ts, struct timezone *tz);
42 extern int cap_ptrace (struct task_struct *parent, struct task_struct *child);
43 extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
44 extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
45 extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
46 extern int cap_bprm_set_security (struct linux_binprm *bprm);
47 extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe);
48 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
49 extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags);
50 extern int cap_inode_removexattr(struct dentry *dentry, char *name);
51 extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags);
52 extern void cap_task_reparent_to_init (struct task_struct *p);
53 extern int cap_syslog (int type);
54 extern int cap_vm_enough_memory (long pages);
62 extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
63 extern int cap_netlink_recv(struct sk_buff *skb);
66 * Values used in the task_security_ops calls
68 /* setuid or setgid, id0 == uid or gid */
69 #define LSM_SETID_ID 1
71 /* setreuid or setregid, id0 == real, id1 == eff */
72 #define LSM_SETID_RE 2
74 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
75 #define LSM_SETID_RES 4
77 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
78 #define LSM_SETID_FS 8
80 /* forward declares to avoid warnings */
83 struct swap_info_struct;
85 /* bprm_apply_creds unsafe reasons */
86 #define LSM_UNSAFE_SHARE 1
87 #define LSM_UNSAFE_PTRACE 2
88 #define LSM_UNSAFE_PTRACE_CAP 4
90 #ifdef CONFIG_SECURITY
93 * struct security_operations - main security structure
95 * Security hooks for program execution operations.
97 * @bprm_alloc_security:
98 * Allocate and attach a security structure to the @bprm->security field.
99 * The security field is initialized to NULL when the bprm structure is
101 * @bprm contains the linux_binprm structure to be modified.
102 * Return 0 if operation was successful.
103 * @bprm_free_security:
104 * @bprm contains the linux_binprm structure to be modified.
105 * Deallocate and clear the @bprm->security field.
107 * Compute and set the security attributes of a process being transformed
108 * by an execve operation based on the old attributes (current->security)
109 * and the information saved in @bprm->security by the set_security hook.
110 * Since this hook function (and its caller) are void, this hook can not
111 * return an error. However, it can leave the security attributes of the
112 * process unchanged if an access failure occurs at this point.
113 * bprm_apply_creds is called under task_lock. @unsafe indicates various
114 * reasons why it may be unsafe to change security state.
115 * @bprm contains the linux_binprm structure.
116 * @bprm_post_apply_creds:
117 * Runs after bprm_apply_creds with the task_lock dropped, so that
118 * functions which cannot be called safely under the task_lock can
119 * be used. This hook is a good place to perform state changes on
120 * the process such as closing open file descriptors to which access
121 * is no longer granted if the attributes were changed.
122 * Note that a security module might need to save state between
123 * bprm_apply_creds and bprm_post_apply_creds to store the decision
124 * on whether the process may proceed.
125 * @bprm contains the linux_binprm structure.
126 * @bprm_set_security:
127 * Save security information in the bprm->security field, typically based
128 * on information about the bprm->file, for later use by the apply_creds
129 * hook. This hook may also optionally check permissions (e.g. for
130 * transitions between security domains).
131 * This hook may be called multiple times during a single execve, e.g. for
132 * interpreters. The hook can tell whether it has already been called by
133 * checking to see if @bprm->security is non-NULL. If so, then the hook
134 * may decide either to retain the security information saved earlier or
136 * @bprm contains the linux_binprm structure.
137 * Return 0 if the hook is successful and permission is granted.
138 * @bprm_check_security:
139 * This hook mediates the point when a search for a binary handler will
140 * begin. It allows a check the @bprm->security value which is set in
141 * the preceding set_security call. The primary difference from
142 * set_security is that the argv list and envp list are reliably
143 * available in @bprm. This hook may be called multiple times
144 * during a single execve; and in each pass set_security is called
146 * @bprm contains the linux_binprm structure.
147 * Return 0 if the hook is successful and permission is granted.
149 * Return a boolean value (0 or 1) indicating whether a "secure exec"
150 * is required. The flag is passed in the auxiliary table
151 * on the initial stack to the ELF interpreter to indicate whether libc
152 * should enable secure mode.
153 * @bprm contains the linux_binprm structure.
155 * Security hooks for filesystem operations.
157 * @sb_alloc_security:
158 * Allocate and attach a security structure to the sb->s_security field.
159 * The s_security field is initialized to NULL when the structure is
161 * @sb contains the super_block structure to be modified.
162 * Return 0 if operation was successful.
164 * Deallocate and clear the sb->s_security field.
165 * @sb contains the super_block structure to be modified.
167 * Check permission before obtaining filesystem statistics for the @sb
169 * @sb contains the super_block structure for the filesystem.
170 * Return 0 if permission is granted.
172 * Check permission before an object specified by @dev_name is mounted on
173 * the mount point named by @nd. For an ordinary mount, @dev_name
174 * identifies a device if the file system type requires a device. For a
175 * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
176 * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
177 * pathname of the object being mounted.
178 * @dev_name contains the name for object being mounted.
179 * @nd contains the nameidata structure for mount point object.
180 * @type contains the filesystem type.
181 * @flags contains the mount flags.
182 * @data contains the filesystem-specific data.
183 * Return 0 if permission is granted.
185 * Allow mount option data to be copied prior to parsing by the filesystem,
186 * so that the security module can extract security-specific mount
187 * options cleanly (a filesystem may modify the data e.g. with strsep()).
188 * This also allows the original mount data to be stripped of security-
189 * specific options to avoid having to make filesystems aware of them.
190 * @type the type of filesystem being mounted.
191 * @orig the original mount data copied from userspace.
192 * @copy copied data which will be passed to the security module.
193 * Returns 0 if the copy was successful.
195 * Check permission before the device with superblock @mnt->sb is mounted
196 * on the mount point named by @nd.
197 * @mnt contains the vfsmount for device being mounted.
198 * @nd contains the nameidata object for the mount point.
199 * Return 0 if permission is granted.
201 * Check permission before the @mnt file system is unmounted.
202 * @mnt contains the mounted file system.
203 * @flags contains the unmount flags, e.g. MNT_FORCE.
204 * Return 0 if permission is granted.
206 * Close any files in the @mnt mounted filesystem that are held open by
207 * the security module. This hook is called during an umount operation
208 * prior to checking whether the filesystem is still busy.
209 * @mnt contains the mounted filesystem.
211 * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening
212 * any files that were closed by umount_close. This hook is called during
213 * an umount operation if the umount fails after a call to the
215 * @mnt contains the mounted filesystem.
217 * Update the security module's state when a filesystem is remounted.
218 * This hook is only called if the remount was successful.
219 * @mnt contains the mounted file system.
220 * @flags contains the new filesystem flags.
221 * @data contains the filesystem-specific data.
222 * @sb_post_mountroot:
223 * Update the security module's state when the root filesystem is mounted.
224 * This hook is only called if the mount was successful.
226 * Update the security module's state when a filesystem is mounted.
227 * This hook is called any time a mount is successfully grafetd to
229 * @mnt contains the mounted filesystem.
230 * @mountpoint_nd contains the nameidata structure for the mount point.
232 * Check permission before pivoting the root filesystem.
233 * @old_nd contains the nameidata structure for the new location of the current root (put_old).
234 * @new_nd contains the nameidata structure for the new root (new_root).
235 * Return 0 if permission is granted.
236 * @sb_post_pivotroot:
237 * Update module state after a successful pivot.
238 * @old_nd contains the nameidata structure for the old root.
239 * @new_nd contains the nameidata structure for the new root.
241 * Security hooks for inode operations.
243 * @inode_alloc_security:
244 * Allocate and attach a security structure to @inode->i_security. The
245 * i_security field is initialized to NULL when the inode structure is
247 * @inode contains the inode structure.
248 * Return 0 if operation was successful.
249 * @inode_free_security:
250 * @inode contains the inode structure.
251 * Deallocate the inode security structure and set @inode->i_security to
253 * @inode_init_security:
254 * Obtain the security attribute name suffix and value to set on a newly
255 * created inode and set up the incore security field for the new inode.
256 * This hook is called by the fs code as part of the inode creation
257 * transaction and provides for atomic labeling of the inode, unlike
258 * the post_create/mkdir/... hooks called by the VFS. The hook function
259 * is expected to allocate the name and value via kmalloc, with the caller
260 * being responsible for calling kfree after using them.
261 * If the security module does not use security attributes or does
262 * not wish to put a security attribute on this particular inode,
263 * then it should return -EOPNOTSUPP to skip this processing.
264 * @inode contains the inode structure of the newly created inode.
265 * @dir contains the inode structure of the parent directory.
266 * @name will be set to the allocated name suffix (e.g. selinux).
267 * @value will be set to the allocated attribute value.
268 * @len will be set to the length of the value.
269 * Returns 0 if @name and @value have been successfully set,
270 * -EOPNOTSUPP if no security attribute is needed, or
271 * -ENOMEM on memory allocation failure.
273 * Check permission to create a regular file.
274 * @dir contains inode structure of the parent of the new file.
275 * @dentry contains the dentry structure for the file to be created.
276 * @mode contains the file mode of the file to be created.
277 * Return 0 if permission is granted.
279 * Check permission before creating a new hard link to a file.
280 * @old_dentry contains the dentry structure for an existing link to the file.
281 * @dir contains the inode structure of the parent directory of the new link.
282 * @new_dentry contains the dentry structure for the new link.
283 * Return 0 if permission is granted.
285 * Set security attributes for a new hard link to a file.
286 * @old_dentry contains the dentry structure for the existing link.
287 * @dir contains the inode structure of the parent directory of the new file.
288 * @new_dentry contains the dentry structure for the new file link.
290 * Check the permission to remove a hard link to a file.
291 * @dir contains the inode structure of parent directory of the file.
292 * @dentry contains the dentry structure for file to be unlinked.
293 * Return 0 if permission is granted.
295 * Check the permission to create a symbolic link to a file.
296 * @dir contains the inode structure of parent directory of the symbolic link.
297 * @dentry contains the dentry structure of the symbolic link.
298 * @old_name contains the pathname of file.
299 * Return 0 if permission is granted.
301 * Check permissions to create a new directory in the existing directory
302 * associated with inode strcture @dir.
303 * @dir containst the inode structure of parent of the directory to be created.
304 * @dentry contains the dentry structure of new directory.
305 * @mode contains the mode of new directory.
306 * Return 0 if permission is granted.
308 * Check the permission to remove a directory.
309 * @dir contains the inode structure of parent of the directory to be removed.
310 * @dentry contains the dentry structure of directory to be removed.
311 * Return 0 if permission is granted.
313 * Check permissions when creating a special file (or a socket or a fifo
314 * file created via the mknod system call). Note that if mknod operation
315 * is being done for a regular file, then the create hook will be called
317 * @dir contains the inode structure of parent of the new file.
318 * @dentry contains the dentry structure of the new file.
319 * @mode contains the mode of the new file.
320 * @dev contains the the device number.
321 * Return 0 if permission is granted.
323 * Check for permission to rename a file or directory.
324 * @old_dir contains the inode structure for parent of the old link.
325 * @old_dentry contains the dentry structure of the old link.
326 * @new_dir contains the inode structure for parent of the new link.
327 * @new_dentry contains the dentry structure of the new link.
328 * Return 0 if permission is granted.
329 * @inode_post_rename:
330 * Set security attributes on a renamed file or directory.
331 * @old_dir contains the inode structure for parent of the old link.
332 * @old_dentry contains the dentry structure of the old link.
333 * @new_dir contains the inode structure for parent of the new link.
334 * @new_dentry contains the dentry structure of the new link.
336 * Check the permission to read the symbolic link.
337 * @dentry contains the dentry structure for the file link.
338 * Return 0 if permission is granted.
339 * @inode_follow_link:
340 * Check permission to follow a symbolic link when looking up a pathname.
341 * @dentry contains the dentry structure for the link.
342 * @nd contains the nameidata structure for the parent directory.
343 * Return 0 if permission is granted.
345 * Check permission before accessing an inode. This hook is called by the
346 * existing Linux permission function, so a security module can use it to
347 * provide additional checking for existing Linux permission checks.
348 * Notice that this hook is called when a file is opened (as well as many
349 * other operations), whereas the file_security_ops permission hook is
350 * called when the actual read/write operations are performed.
351 * @inode contains the inode structure to check.
352 * @mask contains the permission mask.
353 * @nd contains the nameidata (may be NULL).
354 * Return 0 if permission is granted.
356 * Check permission before setting file attributes. Note that the kernel
357 * call to notify_change is performed from several locations, whenever
358 * file attributes change (such as when a file is truncated, chown/chmod
359 * operations, transferring disk quotas, etc).
360 * @dentry contains the dentry structure for the file.
361 * @attr is the iattr structure containing the new file attributes.
362 * Return 0 if permission is granted.
364 * Check permission before obtaining file attributes.
365 * @mnt is the vfsmount where the dentry was looked up
366 * @dentry contains the dentry structure for the file.
367 * Return 0 if permission is granted.
369 * @inode contains the inode structure for deleted inode.
370 * This hook is called when a deleted inode is released (i.e. an inode
371 * with no hard links has its use count drop to zero). A security module
372 * can use this hook to release any persistent label associated with the
375 * Check permission before setting the extended attributes
376 * @value identified by @name for @dentry.
377 * Return 0 if permission is granted.
378 * @inode_post_setxattr:
379 * Update inode security field after successful setxattr operation.
380 * @value identified by @name for @dentry.
382 * Check permission before obtaining the extended attributes
383 * identified by @name for @dentry.
384 * Return 0 if permission is granted.
386 * Check permission before obtaining the list of extended attribute
388 * Return 0 if permission is granted.
389 * @inode_removexattr:
390 * Check permission before removing the extended attribute
391 * identified by @name for @dentry.
392 * Return 0 if permission is granted.
393 * @inode_getsecurity:
394 * Copy the extended attribute representation of the security label
395 * associated with @name for @inode into @buffer. @buffer may be
396 * NULL to request the size of the buffer required. @size indicates
397 * the size of @buffer in bytes. Note that @name is the remainder
398 * of the attribute name after the security. prefix has been removed.
399 * Return number of bytes used/required on success.
400 * @inode_setsecurity:
401 * Set the security label associated with @name for @inode from the
402 * extended attribute value @value. @size indicates the size of the
403 * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
404 * Note that @name is the remainder of the attribute name after the
405 * security. prefix has been removed.
406 * Return 0 on success.
407 * @inode_listsecurity:
408 * Copy the extended attribute names for the security labels
409 * associated with @inode into @buffer. The maximum size of @buffer
410 * is specified by @buffer_size. @buffer may be NULL to request
411 * the size of the buffer required.
412 * Returns number of bytes used/required on success.
414 * Security hooks for file operations
417 * Check file permissions before accessing an open file. This hook is
418 * called by various operations that read or write files. A security
419 * module can use this hook to perform additional checking on these
420 * operations, e.g. to revalidate permissions on use to support privilege
421 * bracketing or policy changes. Notice that this hook is used when the
422 * actual read/write operations are performed, whereas the
423 * inode_security_ops hook is called when a file is opened (as well as
424 * many other operations).
425 * Caveat: Although this hook can be used to revalidate permissions for
426 * various system call operations that read or write files, it does not
427 * address the revalidation of permissions for memory-mapped files.
428 * Security modules must handle this separately if they need such
430 * @file contains the file structure being accessed.
431 * @mask contains the requested permissions.
432 * Return 0 if permission is granted.
433 * @file_alloc_security:
434 * Allocate and attach a security structure to the file->f_security field.
435 * The security field is initialized to NULL when the structure is first
437 * @file contains the file structure to secure.
438 * Return 0 if the hook is successful and permission is granted.
439 * @file_free_security:
440 * Deallocate and free any security structures stored in file->f_security.
441 * @file contains the file structure being modified.
443 * @file contains the file structure.
444 * @cmd contains the operation to perform.
445 * @arg contains the operational arguments.
446 * Check permission for an ioctl operation on @file. Note that @arg can
447 * sometimes represents a user space pointer; in other cases, it may be a
448 * simple integer value. When @arg represents a user space pointer, it
449 * should never be used by the security module.
450 * Return 0 if permission is granted.
452 * Check permissions for a mmap operation. The @file may be NULL, e.g.
453 * if mapping anonymous memory.
454 * @file contains the file structure for file to map (may be NULL).
455 * @reqprot contains the protection requested by the application.
456 * @prot contains the protection that will be applied by the kernel.
457 * @flags contains the operational flags.
458 * Return 0 if permission is granted.
460 * Check permissions before changing memory access permissions.
461 * @vma contains the memory region to modify.
462 * @reqprot contains the protection requested by the application.
463 * @prot contains the protection that will be applied by the kernel.
464 * Return 0 if permission is granted.
466 * Check permission before performing file locking operations.
467 * Note: this hook mediates both flock and fcntl style locks.
468 * @file contains the file structure.
469 * @cmd contains the posix-translated lock operation to perform
470 * (e.g. F_RDLCK, F_WRLCK).
471 * Return 0 if permission is granted.
473 * Check permission before allowing the file operation specified by @cmd
474 * from being performed on the file @file. Note that @arg can sometimes
475 * represents a user space pointer; in other cases, it may be a simple
476 * integer value. When @arg represents a user space pointer, it should
477 * never be used by the security module.
478 * @file contains the file structure.
479 * @cmd contains the operation to be performed.
480 * @arg contains the operational arguments.
481 * Return 0 if permission is granted.
483 * Save owner security information (typically from current->security) in
484 * file->f_security for later use by the send_sigiotask hook.
485 * @file contains the file structure to update.
486 * Return 0 on success.
487 * @file_send_sigiotask:
488 * Check permission for the file owner @fown to send SIGIO or SIGURG to the
489 * process @tsk. Note that this hook is sometimes called from interrupt.
490 * Note that the fown_struct, @fown, is never outside the context of a
491 * struct file, so the file structure (and associated security information)
492 * can always be obtained:
493 * (struct file *)((long)fown - offsetof(struct file,f_owner));
494 * @tsk contains the structure of task receiving signal.
495 * @fown contains the file owner information.
496 * @sig is the signal that will be sent. When 0, kernel sends SIGIO.
497 * Return 0 if permission is granted.
499 * This hook allows security modules to control the ability of a process
500 * to receive an open file descriptor via socket IPC.
501 * @file contains the file structure being received.
502 * Return 0 if permission is granted.
504 * Security hooks for task operations.
507 * Check permission before creating a child process. See the clone(2)
508 * manual page for definitions of the @clone_flags.
509 * @clone_flags contains the flags indicating what should be shared.
510 * Return 0 if permission is granted.
511 * @task_alloc_security:
512 * @p contains the task_struct for child process.
513 * Allocate and attach a security structure to the p->security field. The
514 * security field is initialized to NULL when the task structure is
516 * Return 0 if operation was successful.
517 * @task_free_security:
518 * @p contains the task_struct for process.
519 * Deallocate and clear the p->security field.
521 * Check permission before setting one or more of the user identity
522 * attributes of the current process. The @flags parameter indicates
523 * which of the set*uid system calls invoked this hook and how to
524 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
525 * definitions at the beginning of this file for the @flags values and
527 * @id0 contains a uid.
528 * @id1 contains a uid.
529 * @id2 contains a uid.
530 * @flags contains one of the LSM_SETID_* values.
531 * Return 0 if permission is granted.
533 * Update the module's state after setting one or more of the user
534 * identity attributes of the current process. The @flags parameter
535 * indicates which of the set*uid system calls invoked this hook. If
536 * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other
537 * parameters are not used.
538 * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS).
539 * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS).
540 * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS).
541 * @flags contains one of the LSM_SETID_* values.
542 * Return 0 on success.
544 * Check permission before setting one or more of the group identity
545 * attributes of the current process. The @flags parameter indicates
546 * which of the set*gid system calls invoked this hook and how to
547 * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID
548 * definitions at the beginning of this file for the @flags values and
550 * @id0 contains a gid.
551 * @id1 contains a gid.
552 * @id2 contains a gid.
553 * @flags contains one of the LSM_SETID_* values.
554 * Return 0 if permission is granted.
556 * Check permission before setting the process group identifier of the
557 * process @p to @pgid.
558 * @p contains the task_struct for process being modified.
559 * @pgid contains the new pgid.
560 * Return 0 if permission is granted.
562 * Check permission before getting the process group identifier of the
564 * @p contains the task_struct for the process.
565 * Return 0 if permission is granted.
567 * Check permission before getting the session identifier of the process
569 * @p contains the task_struct for the process.
570 * Return 0 if permission is granted.
572 * Check permission before setting the supplementary group set of the
574 * @group_info contains the new group information.
575 * Return 0 if permission is granted.
577 * Check permission before setting the nice value of @p to @nice.
578 * @p contains the task_struct of process.
579 * @nice contains the new nice value.
580 * Return 0 if permission is granted.
582 * Check permission before setting the resource limits of the current
583 * process for @resource to @new_rlim. The old resource limit values can
584 * be examined by dereferencing (current->signal->rlim + resource).
585 * @resource contains the resource whose limit is being set.
586 * @new_rlim contains the new limits for @resource.
587 * Return 0 if permission is granted.
588 * @task_setscheduler:
589 * Check permission before setting scheduling policy and/or parameters of
590 * process @p based on @policy and @lp.
591 * @p contains the task_struct for process.
592 * @policy contains the scheduling policy.
593 * @lp contains the scheduling parameters.
594 * Return 0 if permission is granted.
595 * @task_getscheduler:
596 * Check permission before obtaining scheduling information for process
598 * @p contains the task_struct for process.
599 * Return 0 if permission is granted.
601 * Check permission before sending signal @sig to @p. @info can be NULL,
602 * the constant 1, or a pointer to a siginfo structure. If @info is 1 or
603 * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
604 * from the kernel and should typically be permitted.
605 * SIGIO signals are handled separately by the send_sigiotask hook in
607 * @p contains the task_struct for process.
608 * @info contains the signal information.
609 * @sig contains the signal value.
610 * Return 0 if permission is granted.
612 * Check permission before allowing a process to reap a child process @p
613 * and collect its status information.
614 * @p contains the task_struct for process.
615 * Return 0 if permission is granted.
617 * Check permission before performing a process control operation on the
619 * @option contains the operation.
620 * @arg2 contains a argument.
621 * @arg3 contains a argument.
622 * @arg4 contains a argument.
623 * @arg5 contains a argument.
624 * Return 0 if permission is granted.
625 * @task_reparent_to_init:
626 * Set the security attributes in @p->security for a kernel thread that
627 * is being reparented to the init task.
628 * @p contains the task_struct for the kernel thread.
630 * Set the security attributes for an inode based on an associated task's
631 * security attributes, e.g. for /proc/pid inodes.
632 * @p contains the task_struct for the task.
633 * @inode contains the inode structure for the inode.
635 * Security hooks for Netlink messaging.
638 * Save security information for a netlink message so that permission
639 * checking can be performed when the message is processed. The security
640 * information can be saved using the eff_cap field of the
641 * netlink_skb_parms structure. Also may be used to provide fine
642 * grained control over message transmission.
643 * @sk associated sock of task sending the message.,
644 * @skb contains the sk_buff structure for the netlink message.
645 * Return 0 if the information was successfully saved and message
646 * is allowed to be transmitted.
648 * Check permission before processing the received netlink message in
650 * @skb contains the sk_buff structure for the netlink message.
651 * Return 0 if permission is granted.
653 * Security hooks for Unix domain networking.
655 * @unix_stream_connect:
656 * Check permissions before establishing a Unix domain stream connection
657 * between @sock and @other.
658 * @sock contains the socket structure.
659 * @other contains the peer socket structure.
660 * Return 0 if permission is granted.
662 * Check permissions before connecting or sending datagrams from @sock to
664 * @sock contains the socket structure.
665 * @sock contains the peer socket structure.
666 * Return 0 if permission is granted.
668 * The @unix_stream_connect and @unix_may_send hooks were necessary because
669 * Linux provides an alternative to the conventional file name space for Unix
670 * domain sockets. Whereas binding and connecting to sockets in the file name
671 * space is mediated by the typical file permissions (and caught by the mknod
672 * and permission hooks in inode_security_ops), binding and connecting to
673 * sockets in the abstract name space is completely unmediated. Sufficient
674 * control of Unix domain sockets in the abstract name space isn't possible
675 * using only the socket layer hooks, since we need to know the actual target
676 * socket, which is not looked up until we are inside the af_unix code.
678 * Security hooks for socket operations.
681 * Check permissions prior to creating a new socket.
682 * @family contains the requested protocol family.
683 * @type contains the requested communications type.
684 * @protocol contains the requested protocol.
685 * @kern set to 1 if a kernel socket.
686 * Return 0 if permission is granted.
687 * @socket_post_create:
688 * This hook allows a module to update or allocate a per-socket security
689 * structure. Note that the security field was not added directly to the
690 * socket structure, but rather, the socket security information is stored
691 * in the associated inode. Typically, the inode alloc_security hook will
692 * allocate and and attach security information to
693 * sock->inode->i_security. This hook may be used to update the
694 * sock->inode->i_security field with additional information that wasn't
695 * available when the inode was allocated.
696 * @sock contains the newly created socket structure.
697 * @family contains the requested protocol family.
698 * @type contains the requested communications type.
699 * @protocol contains the requested protocol.
700 * @kern set to 1 if a kernel socket.
702 * Check permission before socket protocol layer bind operation is
703 * performed and the socket @sock is bound to the address specified in the
704 * @address parameter.
705 * @sock contains the socket structure.
706 * @address contains the address to bind to.
707 * @addrlen contains the length of address.
708 * Return 0 if permission is granted.
710 * Check permission before socket protocol layer connect operation
711 * attempts to connect socket @sock to a remote address, @address.
712 * @sock contains the socket structure.
713 * @address contains the address of remote endpoint.
714 * @addrlen contains the length of address.
715 * Return 0 if permission is granted.
717 * Check permission before socket protocol layer listen operation.
718 * @sock contains the socket structure.
719 * @backlog contains the maximum length for the pending connection queue.
720 * Return 0 if permission is granted.
722 * Check permission before accepting a new connection. Note that the new
723 * socket, @newsock, has been created and some information copied to it,
724 * but the accept operation has not actually been performed.
725 * @sock contains the listening socket structure.
726 * @newsock contains the newly created server socket for connection.
727 * Return 0 if permission is granted.
728 * @socket_post_accept:
729 * This hook allows a security module to copy security
730 * information into the newly created socket's inode.
731 * @sock contains the listening socket structure.
732 * @newsock contains the newly created server socket for connection.
734 * Check permission before transmitting a message to another socket.
735 * @sock contains the socket structure.
736 * @msg contains the message to be transmitted.
737 * @size contains the size of message.
738 * Return 0 if permission is granted.
740 * Check permission before receiving a message from a socket.
741 * @sock contains the socket structure.
742 * @msg contains the message structure.
743 * @size contains the size of message structure.
744 * @flags contains the operational flags.
745 * Return 0 if permission is granted.
746 * @socket_getsockname:
747 * Check permission before the local address (name) of the socket object
748 * @sock is retrieved.
749 * @sock contains the socket structure.
750 * Return 0 if permission is granted.
751 * @socket_getpeername:
752 * Check permission before the remote address (name) of a socket object
753 * @sock is retrieved.
754 * @sock contains the socket structure.
755 * Return 0 if permission is granted.
756 * @socket_getsockopt:
757 * Check permissions before retrieving the options associated with socket
759 * @sock contains the socket structure.
760 * @level contains the protocol level to retrieve option from.
761 * @optname contains the name of option to retrieve.
762 * Return 0 if permission is granted.
763 * @socket_setsockopt:
764 * Check permissions before setting the options associated with socket
766 * @sock contains the socket structure.
767 * @level contains the protocol level to set options for.
768 * @optname contains the name of the option to set.
769 * Return 0 if permission is granted.
771 * Checks permission before all or part of a connection on the socket
772 * @sock is shut down.
773 * @sock contains the socket structure.
774 * @how contains the flag indicating how future sends and receives are handled.
775 * Return 0 if permission is granted.
776 * @socket_sock_rcv_skb:
777 * Check permissions on incoming network packets. This hook is distinct
778 * from Netfilter's IP input hooks since it is the first time that the
779 * incoming sk_buff @skb has been associated with a particular socket, @sk.
780 * @sk contains the sock (not socket) associated with the incoming sk_buff.
781 * @skb contains the incoming network data.
782 * @socket_getpeersec:
783 * This hook allows the security module to provide peer socket security
784 * state to userspace via getsockopt SO_GETPEERSEC.
785 * @sock is the local socket.
786 * @optval userspace memory where the security state is to be copied.
787 * @optlen userspace int where the module should copy the actual length
788 * of the security state.
789 * @len as input is the maximum length to copy to userspace provided
791 * Return 0 if all is well, otherwise, typical getsockopt return
793 * @sk_alloc_security:
794 * Allocate and attach a security structure to the sk->sk_security field,
795 * which is used to copy security attributes between local stream sockets.
797 * Deallocate security structure.
799 * Security hooks affecting all System V IPC operations.
802 * Check permissions for access to IPC
803 * @ipcp contains the kernel IPC permission structure
804 * @flag contains the desired (requested) permission set
805 * Return 0 if permission is granted.
807 * Security hooks for individual messages held in System V IPC message queues
808 * @msg_msg_alloc_security:
809 * Allocate and attach a security structure to the msg->security field.
810 * The security field is initialized to NULL when the structure is first
812 * @msg contains the message structure to be modified.
813 * Return 0 if operation was successful and permission is granted.
814 * @msg_msg_free_security:
815 * Deallocate the security structure for this message.
816 * @msg contains the message structure to be modified.
818 * Security hooks for System V IPC Message Queues
820 * @msg_queue_alloc_security:
821 * Allocate and attach a security structure to the
822 * msq->q_perm.security field. The security field is initialized to
823 * NULL when the structure is first created.
824 * @msq contains the message queue structure to be modified.
825 * Return 0 if operation was successful and permission is granted.
826 * @msg_queue_free_security:
827 * Deallocate security structure for this message queue.
828 * @msq contains the message queue structure to be modified.
829 * @msg_queue_associate:
830 * Check permission when a message queue is requested through the
831 * msgget system call. This hook is only called when returning the
832 * message queue identifier for an existing message queue, not when a
833 * new message queue is created.
834 * @msq contains the message queue to act upon.
835 * @msqflg contains the operation control flags.
836 * Return 0 if permission is granted.
838 * Check permission when a message control operation specified by @cmd
839 * is to be performed on the message queue @msq.
840 * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
841 * @msq contains the message queue to act upon. May be NULL.
842 * @cmd contains the operation to be performed.
843 * Return 0 if permission is granted.
845 * Check permission before a message, @msg, is enqueued on the message
847 * @msq contains the message queue to send message to.
848 * @msg contains the message to be enqueued.
849 * @msqflg contains operational flags.
850 * Return 0 if permission is granted.
852 * Check permission before a message, @msg, is removed from the message
853 * queue, @msq. The @target task structure contains a pointer to the
854 * process that will be receiving the message (not equal to the current
855 * process when inline receives are being performed).
856 * @msq contains the message queue to retrieve message from.
857 * @msg contains the message destination.
858 * @target contains the task structure for recipient process.
859 * @type contains the type of message requested.
860 * @mode contains the operational flags.
861 * Return 0 if permission is granted.
863 * Security hooks for System V Shared Memory Segments
865 * @shm_alloc_security:
866 * Allocate and attach a security structure to the shp->shm_perm.security
867 * field. The security field is initialized to NULL when the structure is
869 * @shp contains the shared memory structure to be modified.
870 * Return 0 if operation was successful and permission is granted.
871 * @shm_free_security:
872 * Deallocate the security struct for this memory segment.
873 * @shp contains the shared memory structure to be modified.
875 * Check permission when a shared memory region is requested through the
876 * shmget system call. This hook is only called when returning the shared
877 * memory region identifier for an existing region, not when a new shared
878 * memory region is created.
879 * @shp contains the shared memory structure to be modified.
880 * @shmflg contains the operation control flags.
881 * Return 0 if permission is granted.
883 * Check permission when a shared memory control operation specified by
884 * @cmd is to be performed on the shared memory region @shp.
885 * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
886 * @shp contains shared memory structure to be modified.
887 * @cmd contains the operation to be performed.
888 * Return 0 if permission is granted.
890 * Check permissions prior to allowing the shmat system call to attach the
891 * shared memory segment @shp to the data segment of the calling process.
892 * The attaching address is specified by @shmaddr.
893 * @shp contains the shared memory structure to be modified.
894 * @shmaddr contains the address to attach memory region to.
895 * @shmflg contains the operational flags.
896 * Return 0 if permission is granted.
898 * Security hooks for System V Semaphores
900 * @sem_alloc_security:
901 * Allocate and attach a security structure to the sma->sem_perm.security
902 * field. The security field is initialized to NULL when the structure is
904 * @sma contains the semaphore structure
905 * Return 0 if operation was successful and permission is granted.
906 * @sem_free_security:
907 * deallocate security struct for this semaphore
908 * @sma contains the semaphore structure.
910 * Check permission when a semaphore is requested through the semget
911 * system call. This hook is only called when returning the semaphore
912 * identifier for an existing semaphore, not when a new one must be
914 * @sma contains the semaphore structure.
915 * @semflg contains the operation control flags.
916 * Return 0 if permission is granted.
918 * Check permission when a semaphore operation specified by @cmd is to be
919 * performed on the semaphore @sma. The @sma may be NULL, e.g. for
920 * IPC_INFO or SEM_INFO.
921 * @sma contains the semaphore structure. May be NULL.
922 * @cmd contains the operation to be performed.
923 * Return 0 if permission is granted.
925 * Check permissions before performing operations on members of the
926 * semaphore set @sma. If the @alter flag is nonzero, the semaphore set
928 * @sma contains the semaphore structure.
929 * @sops contains the operations to perform.
930 * @nsops contains the number of operations to perform.
931 * @alter contains the flag indicating whether changes are to be made.
932 * Return 0 if permission is granted.
935 * Check permission before allowing the @parent process to trace the
937 * Security modules may also want to perform a process tracing check
938 * during an execve in the set_security or apply_creds hooks of
939 * binprm_security_ops if the process is being traced and its security
940 * attributes would be changed by the execve.
941 * @parent contains the task_struct structure for parent process.
942 * @child contains the task_struct structure for child process.
943 * Return 0 if permission is granted.
945 * Get the @effective, @inheritable, and @permitted capability sets for
946 * the @target process. The hook may also perform permission checking to
947 * determine if the current process is allowed to see the capability sets
948 * of the @target process.
949 * @target contains the task_struct structure for target process.
950 * @effective contains the effective capability set.
951 * @inheritable contains the inheritable capability set.
952 * @permitted contains the permitted capability set.
953 * Return 0 if the capability sets were successfully obtained.
955 * Check permission before setting the @effective, @inheritable, and
956 * @permitted capability sets for the @target process.
957 * Caveat: @target is also set to current if a set of processes is
958 * specified (i.e. all processes other than current and init or a
959 * particular process group). Hence, the capset_set hook may need to
960 * revalidate permission to the actual target process.
961 * @target contains the task_struct structure for target process.
962 * @effective contains the effective capability set.
963 * @inheritable contains the inheritable capability set.
964 * @permitted contains the permitted capability set.
965 * Return 0 if permission is granted.
967 * Set the @effective, @inheritable, and @permitted capability sets for
968 * the @target process. Since capset_check cannot always check permission
969 * to the real @target process, this hook may also perform permission
970 * checking to determine if the current process is allowed to set the
971 * capability sets of the @target process. However, this hook has no way
972 * of returning an error due to the structure of the sys_capset code.
973 * @target contains the task_struct structure for target process.
974 * @effective contains the effective capability set.
975 * @inheritable contains the inheritable capability set.
976 * @permitted contains the permitted capability set.
978 * Check permission before enabling or disabling process accounting. If
979 * accounting is being enabled, then @file refers to the open file used to
980 * store accounting records. If accounting is being disabled, then @file
982 * @file contains the file structure for the accounting file (may be NULL).
983 * Return 0 if permission is granted.
985 * Check permission before accessing the @table sysctl variable in the
986 * manner specified by @op.
987 * @table contains the ctl_table structure for the sysctl variable.
988 * @op contains the operation (001 = search, 002 = write, 004 = read).
989 * Return 0 if permission is granted.
991 * Check whether the @tsk process has the @cap capability.
992 * @tsk contains the task_struct for the process.
993 * @cap contains the capability <include/linux/capability.h>.
994 * Return 0 if the capability is granted for @tsk.
996 * Check permission before accessing the kernel message ring or changing
997 * logging to the console.
998 * See the syslog(2) manual page for an explanation of the @type values.
999 * @type contains the type of action.
1000 * Return 0 if permission is granted.
1002 * Check permission to change the system time.
1003 * struct timespec and timezone are defined in include/linux/time.h
1004 * @ts contains new time
1005 * @tz contains new timezone
1006 * Return 0 if permission is granted.
1007 * @vm_enough_memory:
1008 * Check permissions for allocating a new virtual mapping.
1009 * @pages contains the number of pages.
1010 * Return 0 if permission is granted.
1012 * @register_security:
1013 * allow module stacking.
1014 * @name contains the name of the security module being stacked.
1015 * @ops contains a pointer to the struct security_operations of the module to stack.
1016 * @unregister_security:
1017 * remove a stacked module.
1018 * @name contains the name of the security module being unstacked.
1019 * @ops contains a pointer to the struct security_operations of the module to unstack.
1021 * This is the main security structure.
1023 struct security_operations {
1024 int (*ptrace) (struct task_struct * parent, struct task_struct * child);
1025 int (*capget) (struct task_struct * target,
1026 kernel_cap_t * effective,
1027 kernel_cap_t * inheritable, kernel_cap_t * permitted);
1028 int (*capset_check) (struct task_struct * target,
1029 kernel_cap_t * effective,
1030 kernel_cap_t * inheritable,
1031 kernel_cap_t * permitted);
1032 void (*capset_set) (struct task_struct * target,
1033 kernel_cap_t * effective,
1034 kernel_cap_t * inheritable,
1035 kernel_cap_t * permitted);
1036 int (*acct) (struct file * file);
1037 int (*sysctl) (struct ctl_table * table, int op);
1038 int (*capable) (struct task_struct * tsk, int cap);
1039 int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
1040 int (*quota_on) (struct dentry * dentry);
1041 int (*syslog) (int type);
1042 int (*settime) (struct timespec *ts, struct timezone *tz);
1043 int (*vm_enough_memory) (long pages);
1045 int (*bprm_alloc_security) (struct linux_binprm * bprm);
1046 void (*bprm_free_security) (struct linux_binprm * bprm);
1047 void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe);
1048 void (*bprm_post_apply_creds) (struct linux_binprm * bprm);
1049 int (*bprm_set_security) (struct linux_binprm * bprm);
1050 int (*bprm_check_security) (struct linux_binprm * bprm);
1051 int (*bprm_secureexec) (struct linux_binprm * bprm);
1053 int (*sb_alloc_security) (struct super_block * sb);
1054 void (*sb_free_security) (struct super_block * sb);
1055 int (*sb_copy_data)(struct file_system_type *type,
1056 void *orig, void *copy);
1057 int (*sb_kern_mount) (struct super_block *sb, void *data);
1058 int (*sb_statfs) (struct super_block * sb);
1059 int (*sb_mount) (char *dev_name, struct nameidata * nd,
1060 char *type, unsigned long flags, void *data);
1061 int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd);
1062 int (*sb_umount) (struct vfsmount * mnt, int flags);
1063 void (*sb_umount_close) (struct vfsmount * mnt);
1064 void (*sb_umount_busy) (struct vfsmount * mnt);
1065 void (*sb_post_remount) (struct vfsmount * mnt,
1066 unsigned long flags, void *data);
1067 void (*sb_post_mountroot) (void);
1068 void (*sb_post_addmount) (struct vfsmount * mnt,
1069 struct nameidata * mountpoint_nd);
1070 int (*sb_pivotroot) (struct nameidata * old_nd,
1071 struct nameidata * new_nd);
1072 void (*sb_post_pivotroot) (struct nameidata * old_nd,
1073 struct nameidata * new_nd);
1075 int (*inode_alloc_security) (struct inode *inode);
1076 void (*inode_free_security) (struct inode *inode);
1077 int (*inode_init_security) (struct inode *inode, struct inode *dir,
1078 char **name, void **value, size_t *len);
1079 int (*inode_create) (struct inode *dir,
1080 struct dentry *dentry, int mode);
1081 int (*inode_link) (struct dentry *old_dentry,
1082 struct inode *dir, struct dentry *new_dentry);
1083 void (*inode_post_link) (struct dentry *old_dentry,
1084 struct inode *dir, struct dentry *new_dentry);
1085 int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1086 int (*inode_symlink) (struct inode *dir,
1087 struct dentry *dentry, const char *old_name);
1088 int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1089 int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1090 int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1091 int mode, dev_t dev);
1092 int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1093 struct inode *new_dir, struct dentry *new_dentry);
1094 void (*inode_post_rename) (struct inode *old_dir,
1095 struct dentry *old_dentry,
1096 struct inode *new_dir,
1097 struct dentry *new_dentry);
1098 int (*inode_readlink) (struct dentry *dentry);
1099 int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1100 int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd);
1101 int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1102 int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1103 void (*inode_delete) (struct inode *inode);
1104 int (*inode_setxattr) (struct dentry *dentry, char *name, void *value,
1105 size_t size, int flags);
1106 void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value,
1107 size_t size, int flags);
1108 int (*inode_getxattr) (struct dentry *dentry, char *name);
1109 int (*inode_listxattr) (struct dentry *dentry);
1110 int (*inode_removexattr) (struct dentry *dentry, char *name);
1111 int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size);
1112 int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1113 int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
1115 int (*file_permission) (struct file * file, int mask);
1116 int (*file_alloc_security) (struct file * file);
1117 void (*file_free_security) (struct file * file);
1118 int (*file_ioctl) (struct file * file, unsigned int cmd,
1120 int (*file_mmap) (struct file * file,
1121 unsigned long reqprot,
1122 unsigned long prot, unsigned long flags);
1123 int (*file_mprotect) (struct vm_area_struct * vma,
1124 unsigned long reqprot,
1125 unsigned long prot);
1126 int (*file_lock) (struct file * file, unsigned int cmd);
1127 int (*file_fcntl) (struct file * file, unsigned int cmd,
1129 int (*file_set_fowner) (struct file * file);
1130 int (*file_send_sigiotask) (struct task_struct * tsk,
1131 struct fown_struct * fown, int sig);
1132 int (*file_receive) (struct file * file);
1134 int (*task_create) (unsigned long clone_flags);
1135 int (*task_alloc_security) (struct task_struct * p);
1136 void (*task_free_security) (struct task_struct * p);
1137 int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
1138 int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ ,
1139 uid_t old_euid, uid_t old_suid, int flags);
1140 int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags);
1141 int (*task_setpgid) (struct task_struct * p, pid_t pgid);
1142 int (*task_getpgid) (struct task_struct * p);
1143 int (*task_getsid) (struct task_struct * p);
1144 int (*task_setgroups) (struct group_info *group_info);
1145 int (*task_setnice) (struct task_struct * p, int nice);
1146 int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim);
1147 int (*task_setscheduler) (struct task_struct * p, int policy,
1148 struct sched_param * lp);
1149 int (*task_getscheduler) (struct task_struct * p);
1150 int (*task_kill) (struct task_struct * p,
1151 struct siginfo * info, int sig);
1152 int (*task_wait) (struct task_struct * p);
1153 int (*task_prctl) (int option, unsigned long arg2,
1154 unsigned long arg3, unsigned long arg4,
1155 unsigned long arg5);
1156 void (*task_reparent_to_init) (struct task_struct * p);
1157 void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1159 int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
1161 int (*msg_msg_alloc_security) (struct msg_msg * msg);
1162 void (*msg_msg_free_security) (struct msg_msg * msg);
1164 int (*msg_queue_alloc_security) (struct msg_queue * msq);
1165 void (*msg_queue_free_security) (struct msg_queue * msq);
1166 int (*msg_queue_associate) (struct msg_queue * msq, int msqflg);
1167 int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd);
1168 int (*msg_queue_msgsnd) (struct msg_queue * msq,
1169 struct msg_msg * msg, int msqflg);
1170 int (*msg_queue_msgrcv) (struct msg_queue * msq,
1171 struct msg_msg * msg,
1172 struct task_struct * target,
1173 long type, int mode);
1175 int (*shm_alloc_security) (struct shmid_kernel * shp);
1176 void (*shm_free_security) (struct shmid_kernel * shp);
1177 int (*shm_associate) (struct shmid_kernel * shp, int shmflg);
1178 int (*shm_shmctl) (struct shmid_kernel * shp, int cmd);
1179 int (*shm_shmat) (struct shmid_kernel * shp,
1180 char __user *shmaddr, int shmflg);
1182 int (*sem_alloc_security) (struct sem_array * sma);
1183 void (*sem_free_security) (struct sem_array * sma);
1184 int (*sem_associate) (struct sem_array * sma, int semflg);
1185 int (*sem_semctl) (struct sem_array * sma, int cmd);
1186 int (*sem_semop) (struct sem_array * sma,
1187 struct sembuf * sops, unsigned nsops, int alter);
1189 int (*netlink_send) (struct sock * sk, struct sk_buff * skb);
1190 int (*netlink_recv) (struct sk_buff * skb);
1192 /* allow module stacking */
1193 int (*register_security) (const char *name,
1194 struct security_operations *ops);
1195 int (*unregister_security) (const char *name,
1196 struct security_operations *ops);
1198 void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1200 int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1201 int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size);
1203 #ifdef CONFIG_SECURITY_NETWORK
1204 int (*unix_stream_connect) (struct socket * sock,
1205 struct socket * other, struct sock * newsk);
1206 int (*unix_may_send) (struct socket * sock, struct socket * other);
1208 int (*socket_create) (int family, int type, int protocol, int kern);
1209 void (*socket_post_create) (struct socket * sock, int family,
1210 int type, int protocol, int kern);
1211 int (*socket_bind) (struct socket * sock,
1212 struct sockaddr * address, int addrlen);
1213 int (*socket_connect) (struct socket * sock,
1214 struct sockaddr * address, int addrlen);
1215 int (*socket_listen) (struct socket * sock, int backlog);
1216 int (*socket_accept) (struct socket * sock, struct socket * newsock);
1217 void (*socket_post_accept) (struct socket * sock,
1218 struct socket * newsock);
1219 int (*socket_sendmsg) (struct socket * sock,
1220 struct msghdr * msg, int size);
1221 int (*socket_recvmsg) (struct socket * sock,
1222 struct msghdr * msg, int size, int flags);
1223 int (*socket_getsockname) (struct socket * sock);
1224 int (*socket_getpeername) (struct socket * sock);
1225 int (*socket_getsockopt) (struct socket * sock, int level, int optname);
1226 int (*socket_setsockopt) (struct socket * sock, int level, int optname);
1227 int (*socket_shutdown) (struct socket * sock, int how);
1228 int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
1229 int (*socket_getpeersec) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1230 int (*sk_alloc_security) (struct sock *sk, int family, int priority);
1231 void (*sk_free_security) (struct sock *sk);
1232 #endif /* CONFIG_SECURITY_NETWORK */
1235 /* global variables */
1236 extern struct security_operations *security_ops;
1239 static inline int security_ptrace (struct task_struct * parent, struct task_struct * child)
1241 return security_ops->ptrace (parent, child);
1244 static inline int security_capget (struct task_struct *target,
1245 kernel_cap_t *effective,
1246 kernel_cap_t *inheritable,
1247 kernel_cap_t *permitted)
1249 return security_ops->capget (target, effective, inheritable, permitted);
1252 static inline int security_capset_check (struct task_struct *target,
1253 kernel_cap_t *effective,
1254 kernel_cap_t *inheritable,
1255 kernel_cap_t *permitted)
1257 return security_ops->capset_check (target, effective, inheritable, permitted);
1260 static inline void security_capset_set (struct task_struct *target,
1261 kernel_cap_t *effective,
1262 kernel_cap_t *inheritable,
1263 kernel_cap_t *permitted)
1265 security_ops->capset_set (target, effective, inheritable, permitted);
1268 static inline int security_acct (struct file *file)
1270 return security_ops->acct (file);
1273 static inline int security_sysctl(struct ctl_table *table, int op)
1275 return security_ops->sysctl(table, op);
1278 static inline int security_quotactl (int cmds, int type, int id,
1279 struct super_block *sb)
1281 return security_ops->quotactl (cmds, type, id, sb);
1284 static inline int security_quota_on (struct dentry * dentry)
1286 return security_ops->quota_on (dentry);
1289 static inline int security_syslog(int type)
1291 return security_ops->syslog(type);
1294 static inline int security_settime(struct timespec *ts, struct timezone *tz)
1296 return security_ops->settime(ts, tz);
1300 static inline int security_vm_enough_memory(long pages)
1302 return security_ops->vm_enough_memory(pages);
1305 static inline int security_bprm_alloc (struct linux_binprm *bprm)
1307 return security_ops->bprm_alloc_security (bprm);
1309 static inline void security_bprm_free (struct linux_binprm *bprm)
1311 security_ops->bprm_free_security (bprm);
1313 static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
1315 security_ops->bprm_apply_creds (bprm, unsafe);
1317 static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
1319 security_ops->bprm_post_apply_creds (bprm);
1321 static inline int security_bprm_set (struct linux_binprm *bprm)
1323 return security_ops->bprm_set_security (bprm);
1326 static inline int security_bprm_check (struct linux_binprm *bprm)
1328 return security_ops->bprm_check_security (bprm);
1331 static inline int security_bprm_secureexec (struct linux_binprm *bprm)
1333 return security_ops->bprm_secureexec (bprm);
1336 static inline int security_sb_alloc (struct super_block *sb)
1338 return security_ops->sb_alloc_security (sb);
1341 static inline void security_sb_free (struct super_block *sb)
1343 security_ops->sb_free_security (sb);
1346 static inline int security_sb_copy_data (struct file_system_type *type,
1347 void *orig, void *copy)
1349 return security_ops->sb_copy_data (type, orig, copy);
1352 static inline int security_sb_kern_mount (struct super_block *sb, void *data)
1354 return security_ops->sb_kern_mount (sb, data);
1357 static inline int security_sb_statfs (struct super_block *sb)
1359 return security_ops->sb_statfs (sb);
1362 static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
1363 char *type, unsigned long flags,
1366 return security_ops->sb_mount (dev_name, nd, type, flags, data);
1369 static inline int security_sb_check_sb (struct vfsmount *mnt,
1370 struct nameidata *nd)
1372 return security_ops->sb_check_sb (mnt, nd);
1375 static inline int security_sb_umount (struct vfsmount *mnt, int flags)
1377 return security_ops->sb_umount (mnt, flags);
1380 static inline void security_sb_umount_close (struct vfsmount *mnt)
1382 security_ops->sb_umount_close (mnt);
1385 static inline void security_sb_umount_busy (struct vfsmount *mnt)
1387 security_ops->sb_umount_busy (mnt);
1390 static inline void security_sb_post_remount (struct vfsmount *mnt,
1391 unsigned long flags, void *data)
1393 security_ops->sb_post_remount (mnt, flags, data);
1396 static inline void security_sb_post_mountroot (void)
1398 security_ops->sb_post_mountroot ();
1401 static inline void security_sb_post_addmount (struct vfsmount *mnt,
1402 struct nameidata *mountpoint_nd)
1404 security_ops->sb_post_addmount (mnt, mountpoint_nd);
1407 static inline int security_sb_pivotroot (struct nameidata *old_nd,
1408 struct nameidata *new_nd)
1410 return security_ops->sb_pivotroot (old_nd, new_nd);
1413 static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
1414 struct nameidata *new_nd)
1416 security_ops->sb_post_pivotroot (old_nd, new_nd);
1419 static inline int security_inode_alloc (struct inode *inode)
1421 if (unlikely (IS_PRIVATE (inode)))
1423 return security_ops->inode_alloc_security (inode);
1426 static inline void security_inode_free (struct inode *inode)
1428 if (unlikely (IS_PRIVATE (inode)))
1430 security_ops->inode_free_security (inode);
1433 static inline int security_inode_init_security (struct inode *inode,
1439 if (unlikely (IS_PRIVATE (inode)))
1441 return security_ops->inode_init_security (inode, dir, name, value, len);
1444 static inline int security_inode_create (struct inode *dir,
1445 struct dentry *dentry,
1448 if (unlikely (IS_PRIVATE (dir)))
1450 return security_ops->inode_create (dir, dentry, mode);
1453 static inline int security_inode_link (struct dentry *old_dentry,
1455 struct dentry *new_dentry)
1457 if (unlikely (IS_PRIVATE (old_dentry->d_inode)))
1459 return security_ops->inode_link (old_dentry, dir, new_dentry);
1462 static inline void security_inode_post_link (struct dentry *old_dentry,
1464 struct dentry *new_dentry)
1466 if (new_dentry->d_inode && unlikely (IS_PRIVATE (new_dentry->d_inode)))
1468 security_ops->inode_post_link (old_dentry, dir, new_dentry);
1471 static inline int security_inode_unlink (struct inode *dir,
1472 struct dentry *dentry)
1474 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1476 return security_ops->inode_unlink (dir, dentry);
1479 static inline int security_inode_symlink (struct inode *dir,
1480 struct dentry *dentry,
1481 const char *old_name)
1483 if (unlikely (IS_PRIVATE (dir)))
1485 return security_ops->inode_symlink (dir, dentry, old_name);
1488 static inline int security_inode_mkdir (struct inode *dir,
1489 struct dentry *dentry,
1492 if (unlikely (IS_PRIVATE (dir)))
1494 return security_ops->inode_mkdir (dir, dentry, mode);
1497 static inline int security_inode_rmdir (struct inode *dir,
1498 struct dentry *dentry)
1500 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1502 return security_ops->inode_rmdir (dir, dentry);
1505 static inline int security_inode_mknod (struct inode *dir,
1506 struct dentry *dentry,
1507 int mode, dev_t dev)
1509 if (unlikely (IS_PRIVATE (dir)))
1511 return security_ops->inode_mknod (dir, dentry, mode, dev);
1514 static inline int security_inode_rename (struct inode *old_dir,
1515 struct dentry *old_dentry,
1516 struct inode *new_dir,
1517 struct dentry *new_dentry)
1519 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1520 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1522 return security_ops->inode_rename (old_dir, old_dentry,
1523 new_dir, new_dentry);
1526 static inline void security_inode_post_rename (struct inode *old_dir,
1527 struct dentry *old_dentry,
1528 struct inode *new_dir,
1529 struct dentry *new_dentry)
1531 if (unlikely (IS_PRIVATE (old_dentry->d_inode) ||
1532 (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode))))
1534 security_ops->inode_post_rename (old_dir, old_dentry,
1535 new_dir, new_dentry);
1538 static inline int security_inode_readlink (struct dentry *dentry)
1540 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1542 return security_ops->inode_readlink (dentry);
1545 static inline int security_inode_follow_link (struct dentry *dentry,
1546 struct nameidata *nd)
1548 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1550 return security_ops->inode_follow_link (dentry, nd);
1553 static inline int security_inode_permission (struct inode *inode, int mask,
1554 struct nameidata *nd)
1556 if (unlikely (IS_PRIVATE (inode)))
1558 return security_ops->inode_permission (inode, mask, nd);
1561 static inline int security_inode_setattr (struct dentry *dentry,
1564 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1566 return security_ops->inode_setattr (dentry, attr);
1569 static inline int security_inode_getattr (struct vfsmount *mnt,
1570 struct dentry *dentry)
1572 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1574 return security_ops->inode_getattr (mnt, dentry);
1577 static inline void security_inode_delete (struct inode *inode)
1579 if (unlikely (IS_PRIVATE (inode)))
1581 security_ops->inode_delete (inode);
1584 static inline int security_inode_setxattr (struct dentry *dentry, char *name,
1585 void *value, size_t size, int flags)
1587 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1589 return security_ops->inode_setxattr (dentry, name, value, size, flags);
1592 static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
1593 void *value, size_t size, int flags)
1595 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1597 security_ops->inode_post_setxattr (dentry, name, value, size, flags);
1600 static inline int security_inode_getxattr (struct dentry *dentry, char *name)
1602 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1604 return security_ops->inode_getxattr (dentry, name);
1607 static inline int security_inode_listxattr (struct dentry *dentry)
1609 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1611 return security_ops->inode_listxattr (dentry);
1614 static inline int security_inode_removexattr (struct dentry *dentry, char *name)
1616 if (unlikely (IS_PRIVATE (dentry->d_inode)))
1618 return security_ops->inode_removexattr (dentry, name);
1621 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
1623 if (unlikely (IS_PRIVATE (inode)))
1625 return security_ops->inode_getsecurity(inode, name, buffer, size);
1628 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1630 if (unlikely (IS_PRIVATE (inode)))
1632 return security_ops->inode_setsecurity(inode, name, value, size, flags);
1635 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1637 if (unlikely (IS_PRIVATE (inode)))
1639 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
1642 static inline int security_file_permission (struct file *file, int mask)
1644 return security_ops->file_permission (file, mask);
1647 static inline int security_file_alloc (struct file *file)
1649 return security_ops->file_alloc_security (file);
1652 static inline void security_file_free (struct file *file)
1654 security_ops->file_free_security (file);
1657 static inline int security_file_ioctl (struct file *file, unsigned int cmd,
1660 return security_ops->file_ioctl (file, cmd, arg);
1663 static inline int security_file_mmap (struct file *file, unsigned long reqprot,
1665 unsigned long flags)
1667 return security_ops->file_mmap (file, reqprot, prot, flags);
1670 static inline int security_file_mprotect (struct vm_area_struct *vma,
1671 unsigned long reqprot,
1674 return security_ops->file_mprotect (vma, reqprot, prot);
1677 static inline int security_file_lock (struct file *file, unsigned int cmd)
1679 return security_ops->file_lock (file, cmd);
1682 static inline int security_file_fcntl (struct file *file, unsigned int cmd,
1685 return security_ops->file_fcntl (file, cmd, arg);
1688 static inline int security_file_set_fowner (struct file *file)
1690 return security_ops->file_set_fowner (file);
1693 static inline int security_file_send_sigiotask (struct task_struct *tsk,
1694 struct fown_struct *fown,
1697 return security_ops->file_send_sigiotask (tsk, fown, sig);
1700 static inline int security_file_receive (struct file *file)
1702 return security_ops->file_receive (file);
1705 static inline int security_task_create (unsigned long clone_flags)
1707 return security_ops->task_create (clone_flags);
1710 static inline int security_task_alloc (struct task_struct *p)
1712 return security_ops->task_alloc_security (p);
1715 static inline void security_task_free (struct task_struct *p)
1717 security_ops->task_free_security (p);
1720 static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
1723 return security_ops->task_setuid (id0, id1, id2, flags);
1726 static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
1727 uid_t old_suid, int flags)
1729 return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags);
1732 static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
1735 return security_ops->task_setgid (id0, id1, id2, flags);
1738 static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
1740 return security_ops->task_setpgid (p, pgid);
1743 static inline int security_task_getpgid (struct task_struct *p)
1745 return security_ops->task_getpgid (p);
1748 static inline int security_task_getsid (struct task_struct *p)
1750 return security_ops->task_getsid (p);
1753 static inline int security_task_setgroups (struct group_info *group_info)
1755 return security_ops->task_setgroups (group_info);
1758 static inline int security_task_setnice (struct task_struct *p, int nice)
1760 return security_ops->task_setnice (p, nice);
1763 static inline int security_task_setrlimit (unsigned int resource,
1764 struct rlimit *new_rlim)
1766 return security_ops->task_setrlimit (resource, new_rlim);
1769 static inline int security_task_setscheduler (struct task_struct *p,
1771 struct sched_param *lp)
1773 return security_ops->task_setscheduler (p, policy, lp);
1776 static inline int security_task_getscheduler (struct task_struct *p)
1778 return security_ops->task_getscheduler (p);
1781 static inline int security_task_kill (struct task_struct *p,
1782 struct siginfo *info, int sig)
1784 return security_ops->task_kill (p, info, sig);
1787 static inline int security_task_wait (struct task_struct *p)
1789 return security_ops->task_wait (p);
1792 static inline int security_task_prctl (int option, unsigned long arg2,
1797 return security_ops->task_prctl (option, arg2, arg3, arg4, arg5);
1800 static inline void security_task_reparent_to_init (struct task_struct *p)
1802 security_ops->task_reparent_to_init (p);
1805 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1807 security_ops->task_to_inode(p, inode);
1810 static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
1813 return security_ops->ipc_permission (ipcp, flag);
1816 static inline int security_msg_msg_alloc (struct msg_msg * msg)
1818 return security_ops->msg_msg_alloc_security (msg);
1821 static inline void security_msg_msg_free (struct msg_msg * msg)
1823 security_ops->msg_msg_free_security(msg);
1826 static inline int security_msg_queue_alloc (struct msg_queue *msq)
1828 return security_ops->msg_queue_alloc_security (msq);
1831 static inline void security_msg_queue_free (struct msg_queue *msq)
1833 security_ops->msg_queue_free_security (msq);
1836 static inline int security_msg_queue_associate (struct msg_queue * msq,
1839 return security_ops->msg_queue_associate (msq, msqflg);
1842 static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
1844 return security_ops->msg_queue_msgctl (msq, cmd);
1847 static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
1848 struct msg_msg * msg, int msqflg)
1850 return security_ops->msg_queue_msgsnd (msq, msg, msqflg);
1853 static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
1854 struct msg_msg * msg,
1855 struct task_struct * target,
1856 long type, int mode)
1858 return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode);
1861 static inline int security_shm_alloc (struct shmid_kernel *shp)
1863 return security_ops->shm_alloc_security (shp);
1866 static inline void security_shm_free (struct shmid_kernel *shp)
1868 security_ops->shm_free_security (shp);
1871 static inline int security_shm_associate (struct shmid_kernel * shp,
1874 return security_ops->shm_associate(shp, shmflg);
1877 static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
1879 return security_ops->shm_shmctl (shp, cmd);
1882 static inline int security_shm_shmat (struct shmid_kernel * shp,
1883 char __user *shmaddr, int shmflg)
1885 return security_ops->shm_shmat(shp, shmaddr, shmflg);
1888 static inline int security_sem_alloc (struct sem_array *sma)
1890 return security_ops->sem_alloc_security (sma);
1893 static inline void security_sem_free (struct sem_array *sma)
1895 security_ops->sem_free_security (sma);
1898 static inline int security_sem_associate (struct sem_array * sma, int semflg)
1900 return security_ops->sem_associate (sma, semflg);
1903 static inline int security_sem_semctl (struct sem_array * sma, int cmd)
1905 return security_ops->sem_semctl(sma, cmd);
1908 static inline int security_sem_semop (struct sem_array * sma,
1909 struct sembuf * sops, unsigned nsops,
1912 return security_ops->sem_semop(sma, sops, nsops, alter);
1915 static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
1917 if (unlikely (inode && IS_PRIVATE (inode)))
1919 security_ops->d_instantiate (dentry, inode);
1922 static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
1924 return security_ops->getprocattr(p, name, value, size);
1927 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1929 return security_ops->setprocattr(p, name, value, size);
1932 static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb)
1934 return security_ops->netlink_send(sk, skb);
1937 static inline int security_netlink_recv(struct sk_buff * skb)
1939 return security_ops->netlink_recv(skb);
1943 extern int security_init (void);
1944 extern int register_security (struct security_operations *ops);
1945 extern int unregister_security (struct security_operations *ops);
1946 extern int mod_reg_security (const char *name, struct security_operations *ops);
1947 extern int mod_unreg_security (const char *name, struct security_operations *ops);
1950 #else /* CONFIG_SECURITY */
1953 * This is the default capabilities functionality. Most of these functions
1954 * are just stubbed out, but a few must call the proper capable code.
1957 static inline int security_init(void)
1962 static inline int security_ptrace (struct task_struct *parent, struct task_struct * child)
1964 return cap_ptrace (parent, child);
1967 static inline int security_capget (struct task_struct *target,
1968 kernel_cap_t *effective,
1969 kernel_cap_t *inheritable,
1970 kernel_cap_t *permitted)
1972 return cap_capget (target, effective, inheritable, permitted);
1975 static inline int security_capset_check (struct task_struct *target,
1976 kernel_cap_t *effective,
1977 kernel_cap_t *inheritable,
1978 kernel_cap_t *permitted)
1980 return cap_capset_check (target, effective, inheritable, permitted);
1983 static inline void security_capset_set (struct task_struct *target,
1984 kernel_cap_t *effective,
1985 kernel_cap_t *inheritable,
1986 kernel_cap_t *permitted)
1988 cap_capset_set (target, effective, inheritable, permitted);
1991 static inline int security_acct (struct file *file)
1996 static inline int security_sysctl(struct ctl_table *table, int op)
2001 static inline int security_quotactl (int cmds, int type, int id,
2002 struct super_block * sb)
2007 static inline int security_quota_on (struct dentry * dentry)
2012 static inline int security_syslog(int type)
2014 return cap_syslog(type);
2017 static inline int security_settime(struct timespec *ts, struct timezone *tz)
2019 return cap_settime(ts, tz);
2022 static inline int security_vm_enough_memory(long pages)
2024 return cap_vm_enough_memory(pages);
2027 static inline int security_bprm_alloc (struct linux_binprm *bprm)
2032 static inline void security_bprm_free (struct linux_binprm *bprm)
2035 static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
2037 cap_bprm_apply_creds (bprm, unsafe);
2040 static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm)
2045 static inline int security_bprm_set (struct linux_binprm *bprm)
2047 return cap_bprm_set_security (bprm);
2050 static inline int security_bprm_check (struct linux_binprm *bprm)
2055 static inline int security_bprm_secureexec (struct linux_binprm *bprm)
2057 return cap_bprm_secureexec(bprm);
2060 static inline int security_sb_alloc (struct super_block *sb)
2065 static inline void security_sb_free (struct super_block *sb)
2068 static inline int security_sb_copy_data (struct file_system_type *type,
2069 void *orig, void *copy)
2074 static inline int security_sb_kern_mount (struct super_block *sb, void *data)
2079 static inline int security_sb_statfs (struct super_block *sb)
2084 static inline int security_sb_mount (char *dev_name, struct nameidata *nd,
2085 char *type, unsigned long flags,
2091 static inline int security_sb_check_sb (struct vfsmount *mnt,
2092 struct nameidata *nd)
2097 static inline int security_sb_umount (struct vfsmount *mnt, int flags)
2102 static inline void security_sb_umount_close (struct vfsmount *mnt)
2105 static inline void security_sb_umount_busy (struct vfsmount *mnt)
2108 static inline void security_sb_post_remount (struct vfsmount *mnt,
2109 unsigned long flags, void *data)
2112 static inline void security_sb_post_mountroot (void)
2115 static inline void security_sb_post_addmount (struct vfsmount *mnt,
2116 struct nameidata *mountpoint_nd)
2119 static inline int security_sb_pivotroot (struct nameidata *old_nd,
2120 struct nameidata *new_nd)
2125 static inline void security_sb_post_pivotroot (struct nameidata *old_nd,
2126 struct nameidata *new_nd)
2129 static inline int security_inode_alloc (struct inode *inode)
2134 static inline void security_inode_free (struct inode *inode)
2137 static inline int security_inode_init_security (struct inode *inode,
2146 static inline int security_inode_create (struct inode *dir,
2147 struct dentry *dentry,
2153 static inline int security_inode_link (struct dentry *old_dentry,
2155 struct dentry *new_dentry)
2160 static inline void security_inode_post_link (struct dentry *old_dentry,
2162 struct dentry *new_dentry)
2165 static inline int security_inode_unlink (struct inode *dir,
2166 struct dentry *dentry)
2171 static inline int security_inode_symlink (struct inode *dir,
2172 struct dentry *dentry,
2173 const char *old_name)
2178 static inline int security_inode_mkdir (struct inode *dir,
2179 struct dentry *dentry,
2185 static inline int security_inode_rmdir (struct inode *dir,
2186 struct dentry *dentry)
2191 static inline int security_inode_mknod (struct inode *dir,
2192 struct dentry *dentry,
2193 int mode, dev_t dev)
2198 static inline int security_inode_rename (struct inode *old_dir,
2199 struct dentry *old_dentry,
2200 struct inode *new_dir,
2201 struct dentry *new_dentry)
2206 static inline void security_inode_post_rename (struct inode *old_dir,
2207 struct dentry *old_dentry,
2208 struct inode *new_dir,
2209 struct dentry *new_dentry)
2212 static inline int security_inode_readlink (struct dentry *dentry)
2217 static inline int security_inode_follow_link (struct dentry *dentry,
2218 struct nameidata *nd)
2223 static inline int security_inode_permission (struct inode *inode, int mask,
2224 struct nameidata *nd)
2229 static inline int security_inode_setattr (struct dentry *dentry,
2235 static inline int security_inode_getattr (struct vfsmount *mnt,
2236 struct dentry *dentry)
2241 static inline void security_inode_delete (struct inode *inode)
2244 static inline int security_inode_setxattr (struct dentry *dentry, char *name,
2245 void *value, size_t size, int flags)
2247 return cap_inode_setxattr(dentry, name, value, size, flags);
2250 static inline void security_inode_post_setxattr (struct dentry *dentry, char *name,
2251 void *value, size_t size, int flags)
2254 static inline int security_inode_getxattr (struct dentry *dentry, char *name)
2259 static inline int security_inode_listxattr (struct dentry *dentry)
2264 static inline int security_inode_removexattr (struct dentry *dentry, char *name)
2266 return cap_inode_removexattr(dentry, name);
2269 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size)
2274 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2279 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2284 static inline int security_file_permission (struct file *file, int mask)
2289 static inline int security_file_alloc (struct file *file)
2294 static inline void security_file_free (struct file *file)
2297 static inline int security_file_ioctl (struct file *file, unsigned int cmd,
2303 static inline int security_file_mmap (struct file *file, unsigned long reqprot,
2305 unsigned long flags)
2310 static inline int security_file_mprotect (struct vm_area_struct *vma,
2311 unsigned long reqprot,
2317 static inline int security_file_lock (struct file *file, unsigned int cmd)
2322 static inline int security_file_fcntl (struct file *file, unsigned int cmd,
2328 static inline int security_file_set_fowner (struct file *file)
2333 static inline int security_file_send_sigiotask (struct task_struct *tsk,
2334 struct fown_struct *fown,
2340 static inline int security_file_receive (struct file *file)
2345 static inline int security_task_create (unsigned long clone_flags)
2350 static inline int security_task_alloc (struct task_struct *p)
2355 static inline void security_task_free (struct task_struct *p)
2358 static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2,
2364 static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid,
2365 uid_t old_suid, int flags)
2367 return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags);
2370 static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2,
2376 static inline int security_task_setpgid (struct task_struct *p, pid_t pgid)
2381 static inline int security_task_getpgid (struct task_struct *p)
2386 static inline int security_task_getsid (struct task_struct *p)
2391 static inline int security_task_setgroups (struct group_info *group_info)
2396 static inline int security_task_setnice (struct task_struct *p, int nice)
2401 static inline int security_task_setrlimit (unsigned int resource,
2402 struct rlimit *new_rlim)
2407 static inline int security_task_setscheduler (struct task_struct *p,
2409 struct sched_param *lp)
2414 static inline int security_task_getscheduler (struct task_struct *p)
2419 static inline int security_task_kill (struct task_struct *p,
2420 struct siginfo *info, int sig)
2425 static inline int security_task_wait (struct task_struct *p)
2430 static inline int security_task_prctl (int option, unsigned long arg2,
2438 static inline void security_task_reparent_to_init (struct task_struct *p)
2440 cap_task_reparent_to_init (p);
2443 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2446 static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
2452 static inline int security_msg_msg_alloc (struct msg_msg * msg)
2457 static inline void security_msg_msg_free (struct msg_msg * msg)
2460 static inline int security_msg_queue_alloc (struct msg_queue *msq)
2465 static inline void security_msg_queue_free (struct msg_queue *msq)
2468 static inline int security_msg_queue_associate (struct msg_queue * msq,
2474 static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd)
2479 static inline int security_msg_queue_msgsnd (struct msg_queue * msq,
2480 struct msg_msg * msg, int msqflg)
2485 static inline int security_msg_queue_msgrcv (struct msg_queue * msq,
2486 struct msg_msg * msg,
2487 struct task_struct * target,
2488 long type, int mode)
2493 static inline int security_shm_alloc (struct shmid_kernel *shp)
2498 static inline void security_shm_free (struct shmid_kernel *shp)
2501 static inline int security_shm_associate (struct shmid_kernel * shp,
2507 static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd)
2512 static inline int security_shm_shmat (struct shmid_kernel * shp,
2513 char __user *shmaddr, int shmflg)
2518 static inline int security_sem_alloc (struct sem_array *sma)
2523 static inline void security_sem_free (struct sem_array *sma)
2526 static inline int security_sem_associate (struct sem_array * sma, int semflg)
2531 static inline int security_sem_semctl (struct sem_array * sma, int cmd)
2536 static inline int security_sem_semop (struct sem_array * sma,
2537 struct sembuf * sops, unsigned nsops,
2543 static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode)
2546 static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size)
2551 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2556 static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb)
2558 return cap_netlink_send (sk, skb);
2561 static inline int security_netlink_recv (struct sk_buff *skb)
2563 return cap_netlink_recv (skb);
2566 #endif /* CONFIG_SECURITY */
2568 #ifdef CONFIG_SECURITY_NETWORK
2569 static inline int security_unix_stream_connect(struct socket * sock,
2570 struct socket * other,
2571 struct sock * newsk)
2573 return security_ops->unix_stream_connect(sock, other, newsk);
2577 static inline int security_unix_may_send(struct socket * sock,
2578 struct socket * other)
2580 return security_ops->unix_may_send(sock, other);
2583 static inline int security_socket_create (int family, int type,
2584 int protocol, int kern)
2586 return security_ops->socket_create(family, type, protocol, kern);
2589 static inline void security_socket_post_create(struct socket * sock,
2592 int protocol, int kern)
2594 security_ops->socket_post_create(sock, family, type,
2598 static inline int security_socket_bind(struct socket * sock,
2599 struct sockaddr * address,
2602 return security_ops->socket_bind(sock, address, addrlen);
2605 static inline int security_socket_connect(struct socket * sock,
2606 struct sockaddr * address,
2609 return security_ops->socket_connect(sock, address, addrlen);
2612 static inline int security_socket_listen(struct socket * sock, int backlog)
2614 return security_ops->socket_listen(sock, backlog);
2617 static inline int security_socket_accept(struct socket * sock,
2618 struct socket * newsock)
2620 return security_ops->socket_accept(sock, newsock);
2623 static inline void security_socket_post_accept(struct socket * sock,
2624 struct socket * newsock)
2626 security_ops->socket_post_accept(sock, newsock);
2629 static inline int security_socket_sendmsg(struct socket * sock,
2630 struct msghdr * msg, int size)
2632 return security_ops->socket_sendmsg(sock, msg, size);
2635 static inline int security_socket_recvmsg(struct socket * sock,
2636 struct msghdr * msg, int size,
2639 return security_ops->socket_recvmsg(sock, msg, size, flags);
2642 static inline int security_socket_getsockname(struct socket * sock)
2644 return security_ops->socket_getsockname(sock);
2647 static inline int security_socket_getpeername(struct socket * sock)
2649 return security_ops->socket_getpeername(sock);
2652 static inline int security_socket_getsockopt(struct socket * sock,
2653 int level, int optname)
2655 return security_ops->socket_getsockopt(sock, level, optname);
2658 static inline int security_socket_setsockopt(struct socket * sock,
2659 int level, int optname)
2661 return security_ops->socket_setsockopt(sock, level, optname);
2664 static inline int security_socket_shutdown(struct socket * sock, int how)
2666 return security_ops->socket_shutdown(sock, how);
2669 static inline int security_sock_rcv_skb (struct sock * sk,
2670 struct sk_buff * skb)
2672 return security_ops->socket_sock_rcv_skb (sk, skb);
2675 static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
2676 int __user *optlen, unsigned len)
2678 return security_ops->socket_getpeersec(sock, optval, optlen, len);
2681 static inline int security_sk_alloc(struct sock *sk, int family,
2682 unsigned int __nocast priority)
2684 return security_ops->sk_alloc_security(sk, family, priority);
2687 static inline void security_sk_free(struct sock *sk)
2689 return security_ops->sk_free_security(sk);
2691 #else /* CONFIG_SECURITY_NETWORK */
2692 static inline int security_unix_stream_connect(struct socket * sock,
2693 struct socket * other,
2694 struct sock * newsk)
2699 static inline int security_unix_may_send(struct socket * sock,
2700 struct socket * other)
2705 static inline int security_socket_create (int family, int type,
2706 int protocol, int kern)
2711 static inline void security_socket_post_create(struct socket * sock,
2714 int protocol, int kern)
2718 static inline int security_socket_bind(struct socket * sock,
2719 struct sockaddr * address,
2725 static inline int security_socket_connect(struct socket * sock,
2726 struct sockaddr * address,
2732 static inline int security_socket_listen(struct socket * sock, int backlog)
2737 static inline int security_socket_accept(struct socket * sock,
2738 struct socket * newsock)
2743 static inline void security_socket_post_accept(struct socket * sock,
2744 struct socket * newsock)
2748 static inline int security_socket_sendmsg(struct socket * sock,
2749 struct msghdr * msg, int size)
2754 static inline int security_socket_recvmsg(struct socket * sock,
2755 struct msghdr * msg, int size,
2761 static inline int security_socket_getsockname(struct socket * sock)
2766 static inline int security_socket_getpeername(struct socket * sock)
2771 static inline int security_socket_getsockopt(struct socket * sock,
2772 int level, int optname)
2777 static inline int security_socket_setsockopt(struct socket * sock,
2778 int level, int optname)
2783 static inline int security_socket_shutdown(struct socket * sock, int how)
2787 static inline int security_sock_rcv_skb (struct sock * sk,
2788 struct sk_buff * skb)
2793 static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
2794 int __user *optlen, unsigned len)
2796 return -ENOPROTOOPT;
2799 static inline int security_sk_alloc(struct sock *sk, int family,
2800 unsigned int __nocast priority)
2805 static inline void security_sk_free(struct sock *sk)
2808 #endif /* CONFIG_SECURITY_NETWORK */
2810 #endif /* ! __LINUX_SECURITY_H */