diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-27 16:26:03 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-27 16:26:03 -0400 |
| commit | e22619a29fcdb513b7bc020e84225bb3b5914259 (patch) | |
| tree | 1d1d72a4c8cebad4f2d2bf738395ca4ececa95ec /include/linux/security.h | |
| parent | 78c10e556ed904d5bfbd71e9cadd8ce8f25d6982 (diff) | |
| parent | b3bddffd35a0b77eee89760eb94cafa18dc431f5 (diff) | |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
"The main change in this kernel is Casey's generalized LSM stacking
work, which removes the hard-coding of Capabilities and Yama stacking,
allowing multiple arbitrary "small" LSMs to be stacked with a default
monolithic module (e.g. SELinux, Smack, AppArmor).
See
https://lwn.net/Articles/636056/
This will allow smaller, simpler LSMs to be incorporated into the
mainline kernel and arbitrarily stacked by users. Also, this is a
useful cleanup of the LSM code in its own right"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
vTPM: set virtual device before passing to ibmvtpm_reset_crq
tpm_ibmvtpm: remove unneccessary message level.
ima: update builtin policies
ima: extend "mask" policy matching support
ima: add support for new "euid" policy condition
ima: fix ima_show_template_data_ascii()
Smack: freeing an error pointer in smk_write_revoke_subj()
selinux: fix setting of security labels on NFS
selinux: Remove unused permission definitions
selinux: enable genfscon labeling for sysfs and pstore files
selinux: enable per-file labeling for debugfs files.
selinux: update netlink socket classes
signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
selinux: Print 'sclass' as string when unrecognized netlink message occurs
Smack: allow multiple labels in onlycap
Smack: fix seq operations in smackfs
ima: pass iint to ima_add_violation()
ima: wrap event related data to the new ima_event_data structure
integrity: add validity checks for 'path' parameter
...
Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 1623 |
1 files changed, 4 insertions, 1619 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 52febde52479..79d85ddf8093 100644 --- a/include/linux/security.h +++ b/include/linux/security.h | |||
| @@ -27,6 +27,7 @@ | |||
| 27 | #include <linux/slab.h> | 27 | #include <linux/slab.h> |
| 28 | #include <linux/err.h> | 28 | #include <linux/err.h> |
| 29 | #include <linux/string.h> | 29 | #include <linux/string.h> |
| 30 | #include <linux/mm.h> | ||
| 30 | 31 | ||
| 31 | struct linux_binprm; | 32 | struct linux_binprm; |
| 32 | struct cred; | 33 | struct cred; |
| @@ -53,9 +54,6 @@ struct xattr; | |||
| 53 | struct xfrm_sec_ctx; | 54 | struct xfrm_sec_ctx; |
| 54 | struct mm_struct; | 55 | struct mm_struct; |
| 55 | 56 | ||
| 56 | /* Maximum number of letters for an LSM name string */ | ||
| 57 | #define SECURITY_NAME_MAX 10 | ||
| 58 | |||
| 59 | /* If capable should audit the security request */ | 57 | /* If capable should audit the security request */ |
| 60 | #define SECURITY_CAP_NOAUDIT 0 | 58 | #define SECURITY_CAP_NOAUDIT 0 |
| 61 | #define SECURITY_CAP_AUDIT 1 | 59 | #define SECURITY_CAP_AUDIT 1 |
| @@ -68,10 +66,7 @@ struct audit_krule; | |||
| 68 | struct user_namespace; | 66 | struct user_namespace; |
| 69 | struct timezone; | 67 | struct timezone; |
| 70 | 68 | ||
| 71 | /* | 69 | /* These functions are in security/commoncap.c */ |
| 72 | * These functions are in security/capability.c and are used | ||
| 73 | * as the default capabilities functions | ||
| 74 | */ | ||
| 75 | extern int cap_capable(const struct cred *cred, struct user_namespace *ns, | 70 | extern int cap_capable(const struct cred *cred, struct user_namespace *ns, |
| 76 | int cap, int audit); | 71 | int cap, int audit); |
| 77 | extern int cap_settime(const struct timespec *ts, const struct timezone *tz); | 72 | extern int cap_settime(const struct timespec *ts, const struct timezone *tz); |
| @@ -113,10 +108,6 @@ struct xfrm_state; | |||
| 113 | struct xfrm_user_sec_ctx; | 108 | struct xfrm_user_sec_ctx; |
| 114 | struct seq_file; | 109 | struct seq_file; |
| 115 | 110 | ||
| 116 | extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); | ||
| 117 | |||
| 118 | void reset_security_ops(void); | ||
| 119 | |||
| 120 | #ifdef CONFIG_MMU | 111 | #ifdef CONFIG_MMU |
| 121 | extern unsigned long mmap_min_addr; | 112 | extern unsigned long mmap_min_addr; |
| 122 | extern unsigned long dac_mmap_min_addr; | 113 | extern unsigned long dac_mmap_min_addr; |
| @@ -187,1583 +178,8 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) | |||
| 187 | opts->num_mnt_opts = 0; | 178 | opts->num_mnt_opts = 0; |
| 188 | } | 179 | } |
| 189 | 180 | ||
| 190 | /** | ||
| 191 | * struct security_operations - main security structure | ||
| 192 | * | ||
| 193 | * Security module identifier. | ||
| 194 | * | ||
| 195 | * @name: | ||
| 196 | * A string that acts as a unique identifier for the LSM with max number | ||
| 197 | * of characters = SECURITY_NAME_MAX. | ||
| 198 | * | ||
| 199 | * Security hooks for program execution operations. | ||
| 200 | * | ||
| 201 | * @bprm_set_creds: | ||
| 202 | * Save security information in the bprm->security field, typically based | ||
| 203 | * on information about the bprm->file, for later use by the apply_creds | ||
| 204 | * hook. This hook may also optionally check permissions (e.g. for | ||
| 205 | * transitions between security domains). | ||
| 206 | * This hook may be called multiple times during a single execve, e.g. for | ||
| 207 | * interpreters. The hook can tell whether it has already been called by | ||
| 208 | * checking to see if @bprm->security is non-NULL. If so, then the hook | ||
| 209 | * may decide either to retain the security information saved earlier or | ||
| 210 | * to replace it. | ||
| 211 | * @bprm contains the linux_binprm structure. | ||
| 212 | * Return 0 if the hook is successful and permission is granted. | ||
| 213 | * @bprm_check_security: | ||
| 214 | * This hook mediates the point when a search for a binary handler will | ||
| 215 | * begin. It allows a check the @bprm->security value which is set in the | ||
| 216 | * preceding set_creds call. The primary difference from set_creds is | ||
| 217 | * that the argv list and envp list are reliably available in @bprm. This | ||
| 218 | * hook may be called multiple times during a single execve; and in each | ||
| 219 | * pass set_creds is called first. | ||
| 220 | * @bprm contains the linux_binprm structure. | ||
| 221 | * Return 0 if the hook is successful and permission is granted. | ||
| 222 | * @bprm_committing_creds: | ||
| 223 | * Prepare to install the new security attributes of a process being | ||
| 224 | * transformed by an execve operation, based on the old credentials | ||
| 225 | * pointed to by @current->cred and the information set in @bprm->cred by | ||
| 226 | * the bprm_set_creds hook. @bprm points to the linux_binprm structure. | ||
| 227 | * This hook is a good place to perform state changes on the process such | ||
| 228 | * as closing open file descriptors to which access will no longer be | ||
| 229 | * granted when the attributes are changed. This is called immediately | ||
| 230 | * before commit_creds(). | ||
| 231 | * @bprm_committed_creds: | ||
| 232 | * Tidy up after the installation of the new security attributes of a | ||
| 233 | * process being transformed by an execve operation. The new credentials | ||
| 234 | * have, by this point, been set to @current->cred. @bprm points to the | ||
| 235 | * linux_binprm structure. This hook is a good place to perform state | ||
| 236 | * changes on the process such as clearing out non-inheritable signal | ||
| 237 | * state. This is called immediately after commit_creds(). | ||
| 238 | * @bprm_secureexec: | ||
| 239 | * Return a boolean value (0 or 1) indicating whether a "secure exec" | ||
| 240 | * is required. The flag is passed in the auxiliary table | ||
| 241 | * on the initial stack to the ELF interpreter to indicate whether libc | ||
| 242 | * should enable secure mode. | ||
| 243 | * @bprm contains the linux_binprm structure. | ||
| 244 | * | ||
| 245 | * Security hooks for filesystem operations. | ||
| 246 | * | ||
| 247 | * @sb_alloc_security: | ||
| 248 | * Allocate and attach a security structure to the sb->s_security field. | ||
| 249 | * The s_security field is initialized to NULL when the structure is | ||
| 250 | * allocated. | ||
| 251 | * @sb contains the super_block structure to be modified. | ||
| 252 | * Return 0 if operation was successful. | ||
| 253 | * @sb_free_security: | ||
| 254 | * Deallocate and clear the sb->s_security field. | ||
| 255 | * @sb contains the super_block structure to be modified. | ||
| 256 | * @sb_statfs: | ||
| 257 | * Check permission before obtaining filesystem statistics for the @mnt | ||
| 258 | * mountpoint. | ||
| 259 | * @dentry is a handle on the superblock for the filesystem. | ||
| 260 | * Return 0 if permission is granted. | ||
| 261 | * @sb_mount: | ||
| 262 | * Check permission before an object specified by @dev_name is mounted on | ||
| 263 | * the mount point named by @nd. For an ordinary mount, @dev_name | ||
| 264 | * identifies a device if the file system type requires a device. For a | ||
| 265 | * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a | ||
| 266 | * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the | ||
| 267 | * pathname of the object being mounted. | ||
| 268 | * @dev_name contains the name for object being mounted. | ||
| 269 | * @path contains the path for mount point object. | ||
| 270 | * @type contains the filesystem type. | ||
| 271 | * @flags contains the mount flags. | ||
| 272 | * @data contains the filesystem-specific data. | ||
| 273 | * Return 0 if permission is granted. | ||
| 274 | * @sb_copy_data: | ||
| 275 | * Allow mount option data to be copied prior to parsing by the filesystem, | ||
| 276 | * so that the security module can extract security-specific mount | ||
| 277 | * options cleanly (a filesystem may modify the data e.g. with strsep()). | ||
| 278 | * This also allows the original mount data to be stripped of security- | ||
| 279 | * specific options to avoid having to make filesystems aware of them. | ||
| 280 | * @type the type of filesystem being mounted. | ||
| 281 | * @orig the original mount data copied from userspace. | ||
| 282 | * @copy copied data which will be passed to the security module. | ||
| 283 | * Returns 0 if the copy was successful. | ||
| 284 | * @sb_remount: | ||
| 285 | * Extracts security system specific mount options and verifies no changes | ||
| 286 | * are being made to those options. | ||
| 287 | * @sb superblock being remounted | ||
| 288 | * @data contains the filesystem-specific data. | ||
| 289 | * Return 0 if permission is granted. | ||
| 290 | * @sb_umount: | ||
| 291 | * Check permission before the @mnt file system is unmounted. | ||
| 292 | * @mnt contains the mounted file system. | ||
| 293 | * @flags contains the unmount flags, e.g. MNT_FORCE. | ||
| 294 | * Return 0 if permission is granted. | ||
| 295 | * @sb_pivotroot: | ||
| 296 | * Check permission before pivoting the root filesystem. | ||
| 297 | * @old_path contains the path for the new location of the current root (put_old). | ||
| 298 | * @new_path contains the path for the new root (new_root). | ||
| 299 | * Return 0 if permission is granted. | ||
| 300 | * @sb_set_mnt_opts: | ||
| 301 | * Set the security relevant mount options used for a superblock | ||
| 302 | * @sb the superblock to set security mount options for | ||
| 303 | * @opts binary data structure containing all lsm mount data | ||
| 304 | * @sb_clone_mnt_opts: | ||
| 305 | * Copy all security options from a given superblock to another | ||
| 306 | * @oldsb old superblock which contain information to clone | ||
| 307 | * @newsb new superblock which needs filled in | ||
| 308 | * @sb_parse_opts_str: | ||
| 309 | * Parse a string of security data filling in the opts structure | ||
| 310 | * @options string containing all mount options known by the LSM | ||
| 311 | * @opts binary data structure usable by the LSM | ||
| 312 | * @dentry_init_security: | ||
| 313 | * Compute a context for a dentry as the inode is not yet available | ||
| 314 | * since NFSv4 has no label backed by an EA anyway. | ||
| 315 | * @dentry dentry to use in calculating the context. | ||
| 316 | * @mode mode used to determine resource type. | ||
| 317 | * @name name of the last path component used to create file | ||
| 318 | * @ctx pointer to place the pointer to the resulting context in. | ||
| 319 | * @ctxlen point to place the length of the resulting context. | ||
| 320 | * | ||
| 321 | * | ||
| 322 | * Security hooks for inode operations. | ||
| 323 | * | ||
| 324 | * @inode_alloc_security: | ||
| 325 | * Allocate and attach a security structure to @inode->i_security. The | ||
| 326 | * i_security field is initialized to NULL when the inode structure is | ||
| 327 | * allocated. | ||
| 328 | * @inode contains the inode structure. | ||
| 329 | * Return 0 if operation was successful. | ||
| 330 | * @inode_free_security: | ||
| 331 | * @inode contains the inode structure. | ||
| 332 | * Deallocate the inode security structure and set @inode->i_security to | ||
| 333 | * NULL. | ||
| 334 | * @inode_init_security: | ||
| 335 | * Obtain the security attribute name suffix and value to set on a newly | ||
| 336 | * created inode and set up the incore security field for the new inode. | ||
| 337 | * This hook is called by the fs code as part of the inode creation | ||
| 338 | * transaction and provides for atomic labeling of the inode, unlike | ||
| 339 | * the post_create/mkdir/... hooks called by the VFS. The hook function | ||
| 340 | * is expected to allocate the name and value via kmalloc, with the caller | ||
| 341 | * being responsible for calling kfree after using them. | ||
| 342 | * If the security module does not use security attributes or does | ||
| 343 | * not wish to put a security attribute on this particular inode, | ||
| 344 | * then it should return -EOPNOTSUPP to skip this processing. | ||
| 345 | * @inode contains the inode structure of the newly created inode. | ||
| 346 | * @dir contains the inode structure of the parent directory. | ||
| 347 | * @qstr contains the last path component of the new object | ||
| 348 | * @name will be set to the allocated name suffix (e.g. selinux). | ||
| 349 | * @value will be set to the allocated attribute value. | ||
| 350 | * @len will be set to the length of the value. | ||
| 351 | * Returns 0 if @name and @value have been successfully set, | ||
| 352 | * -EOPNOTSUPP if no security attribute is needed, or | ||
| 353 | * -ENOMEM on memory allocation failure. | ||
| 354 | * @inode_create: | ||
| 355 | * Check permission to create a regular file. | ||
| 356 | * @dir contains inode structure of the parent of the new file. | ||
| 357 | * @dentry contains the dentry structure for the file to be created. | ||
| 358 | * @mode contains the file mode of the file to be created. | ||
| 359 | * Return 0 if permission is granted. | ||
| 360 | * @inode_link: | ||
| 361 | * Check permission before creating a new hard link to a file. | ||
| 362 | * @old_dentry contains the dentry structure for an existing link to the file. | ||
| 363 | * @dir contains the inode structure of the parent directory of the new link. | ||
| 364 | * @new_dentry contains the dentry structure for the new link. | ||
| 365 | * Return 0 if permission is granted. | ||
| 366 | * @path_link: | ||
| 367 | * Check permission before creating a new hard link to a file. | ||
| 368 | * @old_dentry contains the dentry structure for an existing link | ||
| 369 | * to the file. | ||
| 370 | * @new_dir contains the path structure of the parent directory of | ||
| 371 | * the new link. | ||
| 372 | * @new_dentry contains the dentry structure for the new link. | ||
| 373 | * Return 0 if permission is granted. | ||
| 374 | * @inode_unlink: | ||
| 375 | * Check the permission to remove a hard link to a file. | ||
| 376 | * @dir contains the inode structure of parent directory of the file. | ||
| 377 | * @dentry contains the dentry structure for file to be unlinked. | ||
| 378 | * Return 0 if permission is granted. | ||
| 379 | * @path_unlink: | ||
| 380 | * Check the permission to remove a hard link to a file. | ||
| 381 | * @dir contains the path structure of parent directory of the file. | ||
| 382 | * @dentry contains the dentry structure for file to be unlinked. | ||
| 383 | * Return 0 if permission is granted. | ||
| 384 | * @inode_symlink: | ||
| 385 | * Check the permission to create a symbolic link to a file. | ||
| 386 | * @dir contains the inode structure of parent directory of the symbolic link. | ||
| 387 | * @dentry contains the dentry structure of the symbolic link. | ||
| 388 | * @old_name contains the pathname of file. | ||
| 389 | * Return 0 if permission is granted. | ||
| 390 | * @path_symlink: | ||
| 391 | * Check the permission to create a symbolic link to a file. | ||
| 392 | * @dir contains the path structure of parent directory of | ||
| 393 | * the symbolic link. | ||
| 394 | * @dentry contains the dentry structure of the symbolic link. | ||
| 395 | * @old_name contains the pathname of file. | ||
| 396 | * Return 0 if permission is granted. | ||
| 397 | * @inode_mkdir: | ||
| 398 | * Check permissions to create a new directory in the existing directory | ||
| 399 | * associated with inode structure @dir. | ||
| 400 | * @dir contains the inode structure of parent of the directory to be created. | ||
| 401 | * @dentry contains the dentry structure of new directory. | ||
| 402 | * @mode contains the mode of new directory. | ||
| 403 | * Return 0 if permission is granted. | ||
| 404 | * @path_mkdir: | ||
| 405 | * Check permissions to create a new directory in the existing directory | ||
| 406 | * associated with path structure @path. | ||
| 407 | * @dir contains the path structure of parent of the directory | ||
| 408 | * to be created. | ||
| 409 | * @dentry contains the dentry structure of new directory. | ||
| 410 | * @mode contains the mode of new directory. | ||
| 411 | * Return 0 if permission is granted. | ||
| 412 | * @inode_rmdir: | ||
| 413 | * Check the permission to remove a directory. | ||
| 414 | * @dir contains the inode structure of parent of the directory to be removed. | ||
| 415 | * @dentry contains the dentry structure of directory to be removed. | ||
| 416 | * Return 0 if permission is granted. | ||
| 417 | * @path_rmdir: | ||
| 418 | * Check the permission to remove a directory. | ||
| 419 | * @dir contains the path structure of parent of the directory to be | ||
| 420 | * removed. | ||
| 421 | * @dentry contains the dentry structure of directory to be removed. | ||
| 422 | * Return 0 if permission is granted. | ||
| 423 | * @inode_mknod: | ||
| 424 | * Check permissions when creating a special file (or a socket or a fifo | ||
| 425 | * file created via the mknod system call). Note that if mknod operation | ||
| 426 | * is being done for a regular file, then the create hook will be called | ||
| 427 | * and not this hook. | ||
| 428 | * @dir contains the inode structure of parent of the new file. | ||
| 429 | * @dentry contains the dentry structure of the new file. | ||
| 430 | * @mode contains the mode of the new file. | ||
| 431 | * @dev contains the device number. | ||
| 432 | * Return 0 if permission is granted. | ||
| 433 | * @path_mknod: | ||
| 434 | * Check permissions when creating a file. Note that this hook is called | ||
| 435 | * even if mknod operation is being done for a regular file. | ||
| 436 | * @dir contains the path structure of parent of the new file. | ||
| 437 | * @dentry contains the dentry structure of the new file. | ||
| 438 | * @mode contains the mode of the new file. | ||
| 439 | * @dev contains the undecoded device number. Use new_decode_dev() to get | ||
| 440 | * the decoded device number. | ||
| 441 | * Return 0 if permission is granted. | ||
| 442 | * @inode_rename: | ||
| 443 | * Check for permission to rename a file or directory. | ||
| 444 | * @old_dir contains the inode structure for parent of the old link. | ||
| 445 | * @old_dentry contains the dentry structure of the old link. | ||
| 446 | * @new_dir contains the inode structure for parent of the new link. | ||
| 447 | * @new_dentry contains the dentry structure of the new link. | ||
| 448 | * Return 0 if permission is granted. | ||
| 449 | * @path_rename: | ||
| 450 | * Check for permission to rename a file or directory. | ||
| 451 | * @old_dir contains the path structure for parent of the old link. | ||
| 452 | * @old_dentry contains the dentry structure of the old link. | ||
| 453 | * @new_dir contains the path structure for parent of the new link. | ||
| 454 | * @new_dentry contains the dentry structure of the new link. | ||
| 455 | * Return 0 if permission is granted. | ||
| 456 | * @path_chmod: | ||
| 457 | * Check for permission to change DAC's permission of a file or directory. | ||
| 458 | * @dentry contains the dentry structure. | ||
| 459 | * @mnt contains the vfsmnt structure. | ||
| 460 | * @mode contains DAC's mode. | ||
| 461 | * Return 0 if permission is granted. | ||
| 462 | * @path_chown: | ||
| 463 | * Check for permission to change owner/group of a file or directory. | ||
| 464 | * @path contains the path structure. | ||
| 465 | * @uid contains new owner's ID. | ||
| 466 | * @gid contains new group's ID. | ||
| 467 | * Return 0 if permission is granted. | ||
| 468 | * @path_chroot: | ||
| 469 | * Check for permission to change root directory. | ||
| 470 | * @path contains the path structure. | ||
| 471 | * Return 0 if permission is granted. | ||
| 472 | * @inode_readlink: | ||
| 473 | * Check the permission to read the symbolic link. | ||
| 474 | * @dentry contains the dentry structure for the file link. | ||
| 475 | * Return 0 if permission is granted. | ||
| 476 | * @inode_follow_link: | ||
| 477 | * Check permission to follow a symbolic link when looking up a pathname. | ||
| 478 | * @dentry contains the dentry structure for the link. | ||
| 479 | * @inode contains the inode, which itself is not stable in RCU-walk | ||
| 480 | * @rcu indicates whether we are in RCU-walk mode. | ||
| 481 | * Return 0 if permission is granted. | ||
| 482 | * @inode_permission: | ||
| 483 | * Check permission before accessing an inode. This hook is called by the | ||
| 484 | * existing Linux permission function, so a security module can use it to | ||
| 485 | * provide additional checking for existing Linux permission checks. | ||
| 486 | * Notice that this hook is called when a file is opened (as well as many | ||
| 487 | * other operations), whereas the file_security_ops permission hook is | ||
| 488 | * called when the actual read/write operations are performed. | ||
| 489 | * @inode contains the inode structure to check. | ||
| 490 | * @mask contains the permission mask. | ||
| 491 | * Return 0 if permission is granted. | ||
| 492 | * @inode_setattr: | ||
| 493 | * Check permission before setting file attributes. Note that the kernel | ||
| 494 | * call to notify_change is performed from several locations, whenever | ||
| 495 | * file attributes change (such as when a file is truncated, chown/chmod | ||
| 496 | * operations, transferring disk quotas, etc). | ||
| 497 | * @dentry contains the dentry structure for the file. | ||
| 498 | * @attr is the iattr structure containing the new file attributes. | ||
| 499 | * Return 0 if permission is granted. | ||
| 500 | * @path_truncate: | ||
| 501 | * Check permission before truncating a file. | ||
| 502 | * @path contains the path structure for the file. | ||
| 503 | * Return 0 if permission is granted. | ||
| 504 | * @inode_getattr: | ||
| 505 | * Check permission before obtaining file attributes. | ||
| 506 | * @mnt is the vfsmount where the dentry was looked up | ||
| 507 | * @dentry contains the dentry structure for the file. | ||
| 508 | * Return 0 if permission is granted. | ||
| 509 | * @inode_setxattr: | ||
| 510 | * Check permission before setting the extended attributes | ||
| 511 | * @value identified by @name for @dentry. | ||
| 512 | * Return 0 if permission is granted. | ||
| 513 | * @inode_post_setxattr: | ||
| 514 | * Update inode security field after successful setxattr operation. | ||
| 515 | * @value identified by @name for @dentry. | ||
| 516 | * @inode_getxattr: | ||
| 517 | * Check permission before obtaining the extended attributes | ||
| 518 | * identified by @name for @dentry. | ||
| 519 | * Return 0 if permission is granted. | ||
| 520 | * @inode_listxattr: | ||
| 521 | * Check permission before obtaining the list of extended attribute | ||
| 522 | * names for @dentry. | ||
| 523 | * Return 0 if permission is granted. | ||
| 524 | * @inode_removexattr: | ||
| 525 | * Check permission before removing the extended attribute | ||
| 526 | * identified by @name for @dentry. | ||
| 527 | * Return 0 if permission is granted. | ||
| 528 | * @inode_getsecurity: | ||
| 529 | * Retrieve a copy of the extended attribute representation of the | ||
| 530 | * security label associated with @name for @inode via @buffer. Note that | ||
| 531 | * @name is the remainder of the attribute name after the security prefix | ||
| 532 | * has been removed. @alloc is used to specify of the call should return a | ||
| 533 | * value via the buffer or just the value length Return size of buffer on | ||
| 534 | * success. | ||
| 535 | * @inode_setsecurity: | ||
| 536 | * Set the security label associated with @name for @inode from the | ||
| 537 | * extended attribute value @value. @size indicates the size of the | ||
| 538 | * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. | ||
| 539 | * Note that @name is the remainder of the attribute name after the | ||
| 540 | * security. prefix has been removed. | ||
| 541 | * Return 0 on success. | ||
| 542 | * @inode_listsecurity: | ||
| 543 | * Copy the extended attribute names for the security labels | ||
| 544 | * associated with @inode into @buffer. The maximum size of @buffer | ||
| 545 | * is specified by @buffer_size. @buffer may be NULL to request | ||
| 546 | * the size of the buffer required. | ||
| 547 | * Returns number of bytes used/required on success. | ||
| 548 | * @inode_need_killpriv: | ||
| 549 | * Called when an inode has been changed. | ||
| 550 | * @dentry is the dentry being changed. | ||
| 551 | * Return <0 on error to abort the inode change operation. | ||
| 552 | * Return 0 if inode_killpriv does not need to be called. | ||
| 553 | * Return >0 if inode_killpriv does need to be called. | ||
| 554 | * @inode_killpriv: | ||
| 555 | * The setuid bit is being removed. Remove similar security labels. | ||
| 556 | * Called with the dentry->d_inode->i_mutex held. | ||
| 557 | * @dentry is the dentry being changed. | ||
| 558 | * Return 0 on success. If error is returned, then the operation | ||
| 559 | * causing setuid bit removal is failed. | ||
| 560 | * @inode_getsecid: | ||
| 561 | * Get the secid associated with the node. | ||
| 562 | * @inode contains a pointer to the inode. | ||
| 563 | * @secid contains a pointer to the location where result will be saved. | ||
| 564 | * In case of failure, @secid will be set to zero. | ||
| 565 | * | ||
| 566 | * Security hooks for file operations | ||
| 567 | * | ||
| 568 | * @file_permission: | ||
| 569 | * Check file permissions before accessing an open file. This hook is | ||
| 570 | * called by various operations that read or write files. A security | ||
| 571 | * module can use this hook to perform additional checking on these | ||
| 572 | * operations, e.g. to revalidate permissions on use to support privilege | ||
| 573 | * bracketing or policy changes. Notice that this hook is used when the | ||
| 574 | * actual read/write operations are performed, whereas the | ||
| 575 | * inode_security_ops hook is called when a file is opened (as well as | ||
| 576 | * many other operations). | ||
| 577 | * Caveat: Although this hook can be used to revalidate permissions for | ||
| 578 | * various system call operations that read or write files, it does not | ||
| 579 | * address the revalidation of permissions for memory-mapped files. | ||
| 580 | * Security modules must handle this separately if they need such | ||
| 581 | * revalidation. | ||
| 582 | * @file contains the file structure being accessed. | ||
| 583 | * @mask contains the requested permissions. | ||
| 584 | * Return 0 if permission is granted. | ||
| 585 | * @file_alloc_security: | ||
| 586 | * Allocate and attach a security structure to the file->f_security field. | ||
| 587 | * The security field is initialized to NULL when the structure is first | ||
| 588 | * created. | ||
| 589 | * @file contains the file structure to secure. | ||
| 590 | * Return 0 if the hook is successful and permission is granted. | ||
| 591 | * @file_free_security: | ||
| 592 | * Deallocate and free any security structures stored in file->f_security. | ||
| 593 | * @file contains the file structure being modified. | ||
| 594 | * @file_ioctl: | ||
| 595 | * @file contains the file structure. | ||
| 596 | * @cmd contains the operation to perform. | ||
| 597 | * @arg contains the operational arguments. | ||
| 598 | * Check permission for an ioctl operation on @file. Note that @arg | ||
| 599 | * sometimes represents a user space pointer; in other cases, it may be a | ||
| 600 | * simple integer value. When @arg represents a user space pointer, it | ||
| 601 | * should never be used by the security module. | ||
| 602 | * Return 0 if permission is granted. | ||
| 603 | * @mmap_addr : | ||
| 604 | * Check permissions for a mmap operation at @addr. | ||
| 605 | * @addr contains virtual address that will be used for the operation. | ||
| 606 | * Return 0 if permission is granted. | ||
| 607 | * @mmap_file : | ||
| 608 | * Check permissions for a mmap operation. The @file may be NULL, e.g. | ||
| 609 | * if mapping anonymous memory. | ||
| 610 | * @file contains the file structure for file to map (may be NULL). | ||
| 611 | * @reqprot contains the protection requested by the application. | ||
| 612 | * @prot contains the protection that will be applied by the kernel. | ||
| 613 | * @flags contains the operational flags. | ||
| 614 | * Return 0 if permission is granted. | ||
| 615 | * @file_mprotect: | ||
| 616 | * Check permissions before changing memory access permissions. | ||
| 617 | * @vma contains the memory region to modify. | ||
| 618 | * @reqprot contains the protection requested by the application. | ||
| 619 | * @prot contains the protection that will be applied by the kernel. | ||
| 620 | * Return 0 if permission is granted. | ||
| 621 | * @file_lock: | ||
| 622 | * Check permission before performing file locking operations. | ||
| 623 | * Note: this hook mediates both flock and fcntl style locks. | ||
| 624 | * @file contains the file structure. | ||
| 625 | * @cmd contains the posix-translated lock operation to perform | ||
| 626 | * (e.g. F_RDLCK, F_WRLCK). | ||
| 627 | * Return 0 if permission is granted. | ||
| 628 | * @file_fcntl: | ||
| 629 | * Check permission before allowing the file operation specified by @cmd | ||
| 630 | * from being performed on the file @file. Note that @arg sometimes | ||
| 631 | * represents a user space pointer; in other cases, it may be a simple | ||
| 632 | * integer value. When @arg represents a user space pointer, it should | ||
| 633 | * never be used by the security module. | ||
| 634 | * @file contains the file structure. | ||
| 635 | * @cmd contains the operation to be performed. | ||
| 636 | * @arg contains the operational arguments. | ||
| 637 | * Return 0 if permission is granted. | ||
| 638 | * @file_set_fowner: | ||
| 639 | * Save owner security information (typically from current->security) in | ||
| 640 | * file->f_security for later use by the send_sigiotask hook. | ||
| 641 | * @file contains the file structure to update. | ||
| 642 | * Return 0 on success. | ||
| 643 | * @file_send_sigiotask: | ||
| 644 | * Check permission for the file owner @fown to send SIGIO or SIGURG to the | ||
| 645 | * process @tsk. Note that this hook is sometimes called from interrupt. | ||
| 646 | * Note that the fown_struct, @fown, is never outside the context of a | ||
| 647 | * struct file, so the file structure (and associated security information) | ||
| 648 | * can always be obtained: | ||
| 649 | * container_of(fown, struct file, f_owner) | ||
| 650 | * @tsk contains the structure of task receiving signal. | ||
| 651 | * @fown contains the file owner information. | ||
| 652 | * @sig is the signal that will be sent. When 0, kernel sends SIGIO. | ||
| 653 | * Return 0 if permission is granted. | ||
| 654 | * @file_receive: | ||
| 655 | * This hook allows security modules to control the ability of a process | ||
| 656 | * to receive an open file descriptor via socket IPC. | ||
| 657 | * @file contains the file structure being received. | ||
| 658 | * Return 0 if permission is granted. | ||
| 659 | * @file_open | ||
| 660 | * Save open-time permission checking state for later use upon | ||
| 661 | * file_permission, and recheck access if anything has changed | ||
| 662 | * since inode_permission. | ||
| 663 | * | ||
| 664 | * Security hooks for task operations. | ||
| 665 | * | ||
| 666 | * @task_create: | ||
| 667 | * Check permission before creating a child process. See the clone(2) | ||
| 668 | * manual page for definitions of the @clone_flags. | ||
| 669 | * @clone_flags contains the flags indicating what should be shared. | ||
| 670 | * Return 0 if permission is granted. | ||
| 671 | * @task_free: | ||
| 672 | * @task task being freed | ||
| 673 | * Handle release of task-related resources. (Note that this can be called | ||
| 674 | * from interrupt context.) | ||
| 675 | * @cred_alloc_blank: | ||
| 676 | * @cred points to the credentials. | ||
| 677 | * @gfp indicates the atomicity of any memory allocations. | ||
| 678 | * Only allocate sufficient memory and attach to @cred such that | ||
| 679 | * cred_transfer() will not get ENOMEM. | ||
| 680 | * @cred_free: | ||
| 681 | * @cred points to the credentials. | ||
| 682 | * Deallocate and clear the cred->security field in a set of credentials. | ||
| 683 | * @cred_prepare: | ||
| 684 | * @new points to the new credentials. | ||
| 685 | * @old points to the original credentials. | ||
| 686 | * @gfp indicates the atomicity of any memory allocations. | ||
| 687 | * Prepare a new set of credentials by copying the data from the old set. | ||
| 688 | * @cred_transfer: | ||
| 689 | * @new points to the new credentials. | ||
| 690 | * @old points to the original credentials. | ||
| 691 | * Transfer data from original creds to new creds | ||
| 692 | * @kernel_act_as: | ||
| 693 | * Set the credentials for a kernel service to act as (subjective context). | ||
| 694 | * @new points to the credentials to be modified. | ||
| 695 | * @secid specifies the security ID to be set | ||
| 696 | * The current task must be the one that nominated @secid. | ||
| 697 | * Return 0 if successful. | ||
| 698 | * @kernel_create_files_as: | ||
| 699 | * Set the file creation context in a set of credentials to be the same as | ||
| 700 | * the objective context of the specified inode. | ||
| 701 | * @new points to the credentials to be modified. | ||
| 702 | * @inode points to the inode to use as a reference. | ||
| 703 | * The current task must be the one that nominated @inode. | ||
| 704 | * Return 0 if successful. | ||
| 705 | * @kernel_fw_from_file: | ||
| 706 | * Load firmware from userspace (not called for built-in firmware). | ||
| 707 | * @file contains the file structure pointing to the file containing | ||
| 708 | * the firmware to load. This argument will be NULL if the firmware | ||
| 709 | * was loaded via the uevent-triggered blob-based interface exposed | ||
| 710 | * by CONFIG_FW_LOADER_USER_HELPER. | ||
| 711 | * @buf pointer to buffer containing firmware contents. | ||
| 712 | * @size length of the firmware contents. | ||
| 713 | * Return 0 if permission is granted. | ||
| 714 | * @kernel_module_request: | ||
| 715 | * Ability to trigger the kernel to automatically upcall to userspace for | ||
| 716 | * userspace to load a kernel module with the given name. | ||
| 717 | * @kmod_name name of the module requested by the kernel | ||
| 718 | * Return 0 if successful. | ||
| 719 | * @kernel_module_from_file: | ||
| 720 | * Load a kernel module from userspace. | ||
| 721 | * @file contains the file structure pointing to the file containing | ||
| 722 | * the kernel module to load. If the module is being loaded from a blob, | ||
| 723 | * this argument will be NULL. | ||
| 724 | * Return 0 if permission is granted. | ||
| 725 | * @task_fix_setuid: | ||
| 726 | * Update the module's state after setting one or more of the user | ||
| 727 | * identity attributes of the current process. The @flags parameter | ||
| 728 | * indicates which of the set*uid system calls invoked this hook. If | ||
| 729 | * @new is the set of credentials that will be installed. Modifications | ||
| 730 | * should be made to this rather than to @current->cred. | ||
| 731 | * @old is the set of credentials that are being replaces | ||
| 732 | * @flags contains one of the LSM_SETID_* values. | ||
| 733 | * Return 0 on success. | ||
| 734 | * @task_setpgid: | ||
| 735 | * Check permission before setting the process group identifier of the | ||
| 736 | * process @p to @pgid. | ||
| 737 | * @p contains the task_struct for process being modified. | ||
| 738 | * @pgid contains the new pgid. | ||
| 739 | * Return 0 if permission is granted. | ||
| 740 | * @task_getpgid: | ||
| 741 | * Check permission before getting the process group identifier of the | ||
| 742 | * process @p. | ||
| 743 | * @p contains the task_struct for the process. | ||
| 744 | * Return 0 if permission is granted. | ||
| 745 | * @task_getsid: | ||
| 746 | * Check permission before getting the session identifier of the process | ||
| 747 | * @p. | ||
| 748 | * @p contains the task_struct for the process. | ||
| 749 | * Return 0 if permission is granted. | ||
| 750 | * @task_getsecid: | ||
| 751 | * Retrieve the security identifier of the process @p. | ||
| 752 | * @p contains the task_struct for the process and place is into @secid. | ||
| 753 | * In case of failure, @secid will be set to zero. | ||
| 754 | * | ||
| 755 | * @task_setnice: | ||
| 756 | * Check permission before setting the nice value of @p to @nice. | ||
| 757 | * @p contains the task_struct of process. | ||
| 758 | * @nice contains the new nice value. | ||
| 759 | * Return 0 if permission is granted. | ||
| 760 | * @task_setioprio | ||
| 761 | * Check permission before setting the ioprio value of @p to @ioprio. | ||
| 762 | * @p contains the task_struct of process. | ||
| 763 | * @ioprio contains the new ioprio value | ||
| 764 | * Return 0 if permission is granted. | ||
| 765 | * @task_getioprio | ||
| 766 | * Check permission before getting the ioprio value of @p. | ||
| 767 | * @p contains the task_struct of process. | ||
| 768 | * Return 0 if permission is granted. | ||
| 769 | * @task_setrlimit: | ||
| 770 | * Check permission before setting the resource limits of the current | ||
| 771 | * process for @resource to @new_rlim. The old resource limit values can | ||
| 772 | * be examined by dereferencing (current->signal->rlim + resource). | ||
| 773 | * @resource contains the resource whose limit is being set. | ||
| 774 | * @new_rlim contains the new limits for @resource. | ||
| 775 | * Return 0 if permission is granted. | ||
| 776 | * @task_setscheduler: | ||
| 777 | * Check permission before setting scheduling policy and/or parameters of | ||
| 778 | * process @p based on @policy and @lp. | ||
| 779 | * @p contains the task_struct for process. | ||
| 780 | * @policy contains the scheduling policy. | ||
| 781 | * @lp contains the scheduling parameters. | ||
| 782 | * Return 0 if permission is granted. | ||
| 783 | * @task_getscheduler: | ||
| 784 | * Check permission before obtaining scheduling information for process | ||
| 785 | * @p. | ||
| 786 | * @p contains the task_struct for process. | ||
| 787 | * Return 0 if permission is granted. | ||
| 788 | * @task_movememory | ||
| 789 | * Check permission before moving memory owned by process @p. | ||
| 790 | * @p contains the task_struct for process. | ||
| 791 | * Return 0 if permission is granted. | ||
| 792 | * @task_kill: | ||
| 793 | * Check permission before sending signal @sig to @p. @info can be NULL, | ||
| 794 | * the constant 1, or a pointer to a siginfo structure. If @info is 1 or | ||
| 795 | * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming | ||
| 796 | * from the kernel and should typically be permitted. | ||
| 797 | * SIGIO signals are handled separately by the send_sigiotask hook in | ||
| 798 | * file_security_ops. | ||
| 799 | * @p contains the task_struct for process. | ||
| 800 | * @info contains the signal information. | ||
| 801 | * @sig contains the signal value. | ||
| 802 | * @secid contains the sid of the process where the signal originated | ||
| 803 | * Return 0 if permission is granted. | ||
| 804 | * @task_wait: | ||
| 805 | * Check permission before allowing a process to reap a child process @p | ||
| 806 | * and collect its status information. | ||
| 807 | * @p contains the task_struct for process. | ||
| 808 | * Return 0 if permission is granted. | ||
| 809 | * @task_prctl: | ||
| 810 | * Check permission before performing a process control operation on the | ||
| 811 | * current process. | ||
| 812 | * @option contains the operation. | ||
| 813 | * @arg2 contains a argument. | ||
| 814 | * @arg3 contains a argument. | ||
| 815 | * @arg4 contains a argument. | ||
| 816 | * @arg5 contains a argument. | ||
| 817 | * Return -ENOSYS if no-one wanted to handle this op, any other value to | ||
| 818 | * cause prctl() to return immediately with that value. | ||
| 819 | * @task_to_inode: | ||
| 820 | * Set the security attributes for an inode based on an associated task's | ||
| 821 | * security attributes, e.g. for /proc/pid inodes. | ||
| 822 | * @p contains the task_struct for the task. | ||
| 823 | * @inode contains the inode structure for the inode. | ||
| 824 | * | ||
| 825 | * Security hooks for Netlink messaging. | ||
| 826 | * | ||
| 827 | * @netlink_send: | ||
| 828 | * Save security information for a netlink message so that permission | ||
| 829 | * checking can be performed when the message is processed. The security | ||
| 830 | * information can be saved using the eff_cap field of the | ||
| 831 | * netlink_skb_parms structure. Also may be used to provide fine | ||
| 832 | * grained control over message transmission. | ||
| 833 | * @sk associated sock of task sending the message. | ||
| 834 | * @skb contains the sk_buff structure for the netlink message. | ||
| 835 | * Return 0 if the information was successfully saved and message | ||
| 836 | * is allowed to be transmitted. | ||
| 837 | * | ||
| 838 | * Security hooks for Unix domain networking. | ||
| 839 | * | ||
| 840 | * @unix_stream_connect: | ||
| 841 | * Check permissions before establishing a Unix domain stream connection | ||
| 842 | * between @sock and @other. | ||
| 843 | * @sock contains the sock structure. | ||
| 844 | * @other contains the peer sock structure. | ||
| 845 | * @newsk contains the new sock structure. | ||
| 846 | * Return 0 if permission is granted. | ||
| 847 | * @unix_may_send: | ||
| 848 | * Check permissions before connecting or sending datagrams from @sock to | ||
| 849 | * @other. | ||
| 850 | * @sock contains the socket structure. | ||
| 851 | * @other contains the peer socket structure. | ||
| 852 | * Return 0 if permission is granted. | ||
| 853 | * | ||
| 854 | * The @unix_stream_connect and @unix_may_send hooks were necessary because | ||
| 855 | * Linux provides an alternative to the conventional file name space for Unix | ||
| 856 | * domain sockets. Whereas binding and connecting to sockets in the file name | ||
| 857 | * space is mediated by the typical file permissions (and caught by the mknod | ||
| 858 | * and permission hooks in inode_security_ops), binding and connecting to | ||
| 859 | * sockets in the abstract name space is completely unmediated. Sufficient | ||
| 860 | * control of Unix domain sockets in the abstract name space isn't possible | ||
| 861 | * using only the socket layer hooks, since we need to know the actual target | ||
| 862 | * socket, which is not looked up until we are inside the af_unix code. | ||
| 863 | * | ||
| 864 | * Security hooks for socket operations. | ||
| 865 | * | ||
| 866 | * @socket_create: | ||
| 867 | * Check permissions prior to creating a new socket. | ||
| 868 | * @family contains the requested protocol family. | ||
| 869 | * @type contains the requested communications type. | ||
| 870 | * @protocol contains the requested protocol. | ||
| 871 | * @kern set to 1 if a kernel socket. | ||
| 872 | * Return 0 if permission is granted. | ||
| 873 | * @socket_post_create: | ||
| 874 | * This hook allows a module to update or allocate a per-socket security | ||
| 875 | * structure. Note that the security field was not added directly to the | ||
| 876 | * socket structure, but rather, the socket security information is stored | ||
| 877 | * in the associated inode. Typically, the inode alloc_security hook will | ||
| 878 | * allocate and and attach security information to | ||
| 879 | * sock->inode->i_security. This hook may be used to update the | ||
| 880 | * sock->inode->i_security field with additional information that wasn't | ||
| 881 | * available when the inode was allocated. | ||
| 882 | * @sock contains the newly created socket structure. | ||
| 883 | * @family contains the requested protocol family. | ||
| 884 | * @type contains the requested communications type. | ||
| 885 | * @protocol contains the requested protocol. | ||
| 886 | * @kern set to 1 if a kernel socket. | ||
| 887 | * @socket_bind: | ||
| 888 | * Check permission before socket protocol layer bind operation is | ||
| 889 | * performed and the socket @sock is bound to the address specified in the | ||
| 890 | * @address parameter. | ||
| 891 | * @sock contains the socket structure. | ||
| 892 | * @address contains the address to bind to. | ||
| 893 | * @addrlen contains the length of address. | ||
| 894 | * Return 0 if permission is granted. | ||
| 895 | * @socket_connect: | ||
| 896 | * Check permission before socket protocol layer connect operation | ||
| 897 | * attempts to connect socket @sock to a remote address, @address. | ||
| 898 | * @sock contains the socket structure. | ||
| 899 | * @address contains the address of remote endpoint. | ||
| 900 | * @addrlen contains the length of address. | ||
| 901 | * Return 0 if permission is granted. | ||
| 902 | * @socket_listen: | ||
| 903 | * Check permission before socket protocol layer listen operation. | ||
| 904 | * @sock contains the socket structure. | ||
| 905 | * @backlog contains the maximum length for the pending connection queue. | ||
| 906 | * Return 0 if permission is granted. | ||
| 907 | * @socket_accept: | ||
| 908 | * Check permission before accepting a new connection. Note that the new | ||
| 909 | * socket, @newsock, has been created and some information copied to it, | ||
| 910 | * but the accept operation has not actually been performed. | ||
| 911 | * @sock contains the listening socket structure. | ||
| 912 | * @newsock contains the newly created server socket for connection. | ||
| 913 | * Return 0 if permission is granted. | ||
| 914 | * @socket_sendmsg: | ||
| 915 | * Check permission before transmitting a message to another socket. | ||
| 916 | * @sock contains the socket structure. | ||
| 917 | * @msg contains the message to be transmitted. | ||
| 918 | * @size contains the size of message. | ||
| 919 | * Return 0 if permission is granted. | ||
| 920 | * @socket_recvmsg: | ||
| 921 | * Check permission before receiving a message from a socket. | ||
| 922 | * @sock contains the socket structure. | ||
| 923 | * @msg contains the message structure. | ||
| 924 | * @size contains the size of message structure. | ||
| 925 | * @flags contains the operational flags. | ||
| 926 | * Return 0 if permission is granted. | ||
| 927 | * @socket_getsockname: | ||
| 928 | * Check permission before the local address (name) of the socket object | ||
| 929 | * @sock is retrieved. | ||
| 930 | * @sock contains the socket structure. | ||
| 931 | * Return 0 if permission is granted. | ||
| 932 | * @socket_getpeername: | ||
| 933 | * Check permission before the remote address (name) of a socket object | ||
| 934 | * @sock is retrieved. | ||
| 935 | * @sock contains the socket structure. | ||
| 936 | * Return 0 if permission is granted. | ||
| 937 | * @socket_getsockopt: | ||
| 938 | * Check permissions before retrieving the options associated with socket | ||
| 939 | * @sock. | ||
| 940 | * @sock contains the socket structure. | ||
| 941 | * @level contains the protocol level to retrieve option from. | ||
| 942 | * @optname contains the name of option to retrieve. | ||
| 943 | * Return 0 if permission is granted. | ||
| 944 | * @socket_setsockopt: | ||
| 945 | * Check permissions before setting the options associated with socket | ||
| 946 | * @sock. | ||
| 947 | * @sock contains the socket structure. | ||
| 948 | * @level contains the protocol level to set options for. | ||
| 949 | * @optname contains the name of the option to set. | ||
| 950 | * Return 0 if permission is granted. | ||
| 951 | * @socket_shutdown: | ||
| 952 | * Checks permission before all or part of a connection on the socket | ||
| 953 | * @sock is shut down. | ||
| 954 | * @sock contains the socket structure. | ||
| 955 | * @how contains the flag indicating how future sends and receives are handled. | ||
| 956 | * Return 0 if permission is granted. | ||
| 957 | * @socket_sock_rcv_skb: | ||
| 958 | * Check permissions on incoming network packets. This hook is distinct | ||
| 959 | * from Netfilter's IP input hooks since it is the first time that the | ||
| 960 | * incoming sk_buff @skb has been associated with a particular socket, @sk. | ||
| 961 | * Must not sleep inside this hook because some callers hold spinlocks. | ||
| 962 | * @sk contains the sock (not socket) associated with the incoming sk_buff. | ||
| 963 | * @skb contains the incoming network data. | ||
| 964 | * @socket_getpeersec_stream: | ||
| 965 | * This hook allows the security module to provide peer socket security | ||
| 966 | * state for unix or connected tcp sockets to userspace via getsockopt | ||
| 967 | * SO_GETPEERSEC. For tcp sockets this can be meaningful if the | ||
| 968 | * socket is associated with an ipsec SA. | ||
| 969 | * @sock is the local socket. | ||
| 970 | * @optval userspace memory where the security state is to be copied. | ||
| 971 | * @optlen userspace int where the module should copy the actual length | ||
| 972 | * of the security state. | ||
| 973 | * @len as input is the maximum length to copy to userspace provided | ||
| 974 | * by the caller. | ||
| 975 | * Return 0 if all is well, otherwise, typical getsockopt return | ||
| 976 | * values. | ||
| 977 | * @socket_getpeersec_dgram: | ||
| 978 | * This hook allows the security module to provide peer socket security | ||
| 979 | * state for udp sockets on a per-packet basis to userspace via | ||
| 980 | * getsockopt SO_GETPEERSEC. The application must first have indicated | ||
| 981 | * the IP_PASSSEC option via getsockopt. It can then retrieve the | ||
| 982 | * security state returned by this hook for a packet via the SCM_SECURITY | ||
| 983 | * ancillary message type. | ||
| 984 | * @skb is the skbuff for the packet being queried | ||
| 985 | * @secdata is a pointer to a buffer in which to copy the security data | ||
| 986 | * @seclen is the maximum length for @secdata | ||
| 987 | * Return 0 on success, error on failure. | ||
| 988 | * @sk_alloc_security: | ||
| 989 | * Allocate and attach a security structure to the sk->sk_security field, | ||
| 990 | * which is used to copy security attributes between local stream sockets. | ||
| 991 | * @sk_free_security: | ||
| 992 | * Deallocate security structure. | ||
| 993 | * @sk_clone_security: | ||
| 994 | * Clone/copy security structure. | ||
| 995 | * @sk_getsecid: | ||
| 996 | * Retrieve the LSM-specific secid for the sock to enable caching of network | ||
| 997 | * authorizations. | ||
| 998 | * @sock_graft: | ||
| 999 | * Sets the socket's isec sid to the sock's sid. | ||
| 1000 | * @inet_conn_request: | ||
| 1001 | * Sets the openreq's sid to socket's sid with MLS portion taken from peer sid. | ||
| 1002 | * @inet_csk_clone: | ||
| 1003 | * Sets the new child socket's sid to the openreq sid. | ||
| 1004 | * @inet_conn_established: | ||
| 1005 | * Sets the connection's peersid to the secmark on skb. | ||
| 1006 | * @secmark_relabel_packet: | ||
| 1007 | * check if the process should be allowed to relabel packets to the given secid | ||
| 1008 | * @security_secmark_refcount_inc | ||
| 1009 | * tells the LSM to increment the number of secmark labeling rules loaded | ||
| 1010 | * @security_secmark_refcount_dec | ||
| 1011 | * tells the LSM to decrement the number of secmark labeling rules loaded | ||
| 1012 | * @req_classify_flow: | ||
| 1013 | * Sets the flow's sid to the openreq sid. | ||
| 1014 | * @tun_dev_alloc_security: | ||
| 1015 | * This hook allows a module to allocate a security structure for a TUN | ||
| 1016 | * device. | ||
| 1017 | * @security pointer to a security structure pointer. | ||
| 1018 | * Returns a zero on success, negative values on failure. | ||
| 1019 | * @tun_dev_free_security: | ||
| 1020 | * This hook allows a module to free the security structure for a TUN | ||
| 1021 | * device. | ||
| 1022 | * @security pointer to the TUN device's security structure | ||
| 1023 | * @tun_dev_create: | ||
| 1024 | * Check permissions prior to creating a new TUN device. | ||
| 1025 | * @tun_dev_attach_queue: | ||
| 1026 | * Check permissions prior to attaching to a TUN device queue. | ||
| 1027 | * @security pointer to the TUN device's security structure. | ||
| 1028 | * @tun_dev_attach: | ||
| 1029 | * This hook can be used by the module to update any security state | ||
| 1030 | * associated with the TUN device's sock structure. | ||
| 1031 | * @sk contains the existing sock structure. | ||
| 1032 | * @security pointer to the TUN device's security structure. | ||
| 1033 | * @tun_dev_open: | ||
| 1034 | * This hook can be used by the module to update any security state | ||
| 1035 | * associated with the TUN device's security structure. | ||
| 1036 | * @security pointer to the TUN devices's security structure. | ||
| 1037 | * @skb_owned_by: | ||
| 1038 | * This hook sets the packet's owning sock. | ||
| 1039 | * @skb is the packet. | ||
| 1040 | * @sk the sock which owns the packet. | ||
| 1041 | * | ||
| 1042 | * Security hooks for XFRM operations. | ||
| 1043 | * | ||
| 1044 | * @xfrm_policy_alloc_security: | ||
| 1045 | * @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy | ||
| 1046 | * Database used by the XFRM system. | ||
| 1047 | * @sec_ctx contains the security context information being provided by | ||
| 1048 | * the user-level policy update program (e.g., setkey). | ||
| 1049 | * Allocate a security structure to the xp->security field; the security | ||
| 1050 | * field is initialized to NULL when the xfrm_policy is allocated. | ||
| 1051 | * Return 0 if operation was successful (memory to allocate, legal context) | ||
| 1052 | * @gfp is to specify the context for the allocation | ||
| 1053 | * @xfrm_policy_clone_security: | ||
| 1054 | * @old_ctx contains an existing xfrm_sec_ctx. | ||
| 1055 | * @new_ctxp contains a new xfrm_sec_ctx being cloned from old. | ||
| 1056 | * Allocate a security structure in new_ctxp that contains the | ||
| 1057 | * information from the old_ctx structure. | ||
| 1058 | * Return 0 if operation was successful (memory to allocate). | ||
| 1059 | * @xfrm_policy_free_security: | ||
| 1060 | * @ctx contains the xfrm_sec_ctx | ||
| 1061 | * Deallocate xp->security. | ||
| 1062 | * @xfrm_policy_delete_security: | ||
| 1063 | * @ctx contains the xfrm_sec_ctx. | ||
| 1064 | * Authorize deletion of xp->security. | ||
| 1065 | * @xfrm_state_alloc: | ||
| 1066 | * @x contains the xfrm_state being added to the Security Association | ||
| 1067 | * Database by the XFRM system. | ||
| 1068 | * @sec_ctx contains the security context information being provided by | ||
| 1069 | * the user-level SA generation program (e.g., setkey or racoon). | ||
| 1070 | * Allocate a security structure to the x->security field; the security | ||
| 1071 | * field is initialized to NULL when the xfrm_state is allocated. Set the | ||
| 1072 | * context to correspond to sec_ctx. Return 0 if operation was successful | ||
| 1073 | * (memory to allocate, legal context). | ||
| 1074 | * @xfrm_state_alloc_acquire: | ||
| 1075 | * @x contains the xfrm_state being added to the Security Association | ||
| 1076 | * Database by the XFRM system. | ||
| 1077 | * @polsec contains the policy's security context. | ||
| 1078 | * @secid contains the secid from which to take the mls portion of the | ||
| 1079 | * context. | ||
| 1080 | * Allocate a security structure to the x->security field; the security | ||
| 1081 | * field is initialized to NULL when the xfrm_state is allocated. Set the | ||
| 1082 | * context to correspond to secid. Return 0 if operation was successful | ||
| 1083 | * (memory to allocate, legal context). | ||
| 1084 | * @xfrm_state_free_security: | ||
| 1085 | * @x contains the xfrm_state. | ||
| 1086 | * Deallocate x->security. | ||
| 1087 | * @xfrm_state_delete_security: | ||
| 1088 | * @x contains the xfrm_state. | ||
| 1089 | * Authorize deletion of x->security. | ||
| 1090 | * @xfrm_policy_lookup: | ||
| 1091 | * @ctx contains the xfrm_sec_ctx for which the access control is being | ||
| 1092 | * checked. | ||
| 1093 | * @fl_secid contains the flow security label that is used to authorize | ||
| 1094 | * access to the policy xp. | ||
| 1095 | * @dir contains the direction of the flow (input or output). | ||
| 1096 | * Check permission when a flow selects a xfrm_policy for processing | ||
| 1097 | * XFRMs on a packet. The hook is called when selecting either a | ||
| 1098 | * per-socket policy or a generic xfrm policy. | ||
| 1099 | * Return 0 if permission is granted, -ESRCH otherwise, or -errno | ||
| 1100 | * on other errors. | ||
| 1101 | * @xfrm_state_pol_flow_match: | ||
| 1102 | * @x contains the state to match. | ||
| 1103 | * @xp contains the policy to check for a match. | ||
| 1104 | * @fl contains the flow to check for a match. | ||
| 1105 | * Return 1 if there is a match. | ||
| 1106 | * @xfrm_decode_session: | ||
| 1107 | * @skb points to skb to decode. | ||
| 1108 | * @secid points to the flow key secid to set. | ||
| 1109 | * @ckall says if all xfrms used should be checked for same secid. | ||
| 1110 | * Return 0 if ckall is zero or all xfrms used have the same secid. | ||
| 1111 | * | ||
| 1112 | * Security hooks affecting all Key Management operations | ||
| 1113 | * | ||
| 1114 | * @key_alloc: | ||
| 1115 | * Permit allocation of a key and assign security data. Note that key does | ||
| 1116 | * not have a serial number assigned at this point. | ||
| 1117 | * @key points to the key. | ||
| 1118 | * @flags is the allocation flags | ||
| 1119 | * Return 0 if permission is granted, -ve error otherwise. | ||
| 1120 | * @key_free: | ||
| 1121 | * Notification of destruction; free security data. | ||
| 1122 | * @key points to the key. | ||
| 1123 | * No return value. | ||
| 1124 | * @key_permission: | ||
| 1125 | * See whether a specific operational right is granted to a process on a | ||
| 1126 | * key. | ||
| 1127 | * @key_ref refers to the key (key pointer + possession attribute bit). | ||
| 1128 | * @cred points to the credentials to provide the context against which to | ||
| 1129 | * evaluate the security data on the key. | ||
| 1130 | * @perm describes the combination of permissions required of this key. | ||
| 1131 | * Return 0 if permission is granted, -ve error otherwise. | ||
| 1132 | * @key_getsecurity: | ||
| 1133 | * Get a textual representation of the security context attached to a key | ||
| 1134 | * for the purposes of honouring KEYCTL_GETSECURITY. This function | ||
| 1135 | * allocates the storage for the NUL-terminated string and the caller | ||
| 1136 | * should free it. | ||
| 1137 | * @key points to the key to be queried. | ||
| 1138 | * @_buffer points to a pointer that should be set to point to the | ||
| 1139 | * resulting string (if no label or an error occurs). | ||
| 1140 | * Return the length of the string (including terminating NUL) or -ve if | ||
| 1141 | * an error. | ||
| 1142 | * May also return 0 (and a NULL buffer pointer) if there is no label. | ||
| 1143 | * | ||
| 1144 | * Security hooks affecting all System V IPC operations. | ||
| 1145 | * | ||
| 1146 | * @ipc_permission: | ||
| 1147 | * Check permissions for access to IPC | ||
| 1148 | * @ipcp contains the kernel IPC permission structure | ||
| 1149 | * @flag contains the desired (requested) permission set | ||
| 1150 | * Return 0 if permission is granted. | ||
| 1151 | * @ipc_getsecid: | ||
| 1152 | * Get the secid associated with the ipc object. | ||
| 1153 | * @ipcp contains the kernel IPC permission structure. | ||
| 1154 | * @secid contains a pointer to the location where result will be saved. | ||
| 1155 | * In case of failure, @secid will be set to zero. | ||
| 1156 | * | ||
| 1157 | * Security hooks for individual messages held in System V IPC message queues | ||
| 1158 | * @msg_msg_alloc_security: | ||
| 1159 | * Allocate and attach a security structure to the msg->security field. | ||
| 1160 | * The security field is initialized to NULL when the structure is first | ||
| 1161 | * created. | ||
| 1162 | * @msg contains the message structure to be modified. | ||
| 1163 | * Return 0 if operation was successful and permission is granted. | ||
| 1164 | * @msg_msg_free_security: | ||
| 1165 | * Deallocate the security structure for this message. | ||
| 1166 | * @msg contains the message structure to be modified. | ||
| 1167 | * | ||
| 1168 | * Security hooks for System V IPC Message Queues | ||
| 1169 | * | ||
| 1170 | * @msg_queue_alloc_security: | ||
| 1171 | * Allocate and attach a security structure to the | ||
| 1172 | * msq->q_perm.security field. The security field is initialized to | ||
| 1173 | * NULL when the structure is first created. | ||
| 1174 | * @msq contains the message queue structure to be modified. | ||
| 1175 | * Return 0 if operation was successful and permission is granted. | ||
| 1176 | * @msg_queue_free_security: | ||
| 1177 | * Deallocate security structure for this message queue. | ||
| 1178 | * @msq contains the message queue structure to be modified. | ||
| 1179 | * @msg_queue_associate: | ||
| 1180 | * Check permission when a message queue is requested through the | ||
| 1181 | * msgget system call. This hook is only called when returning the | ||
| 1182 | * message queue identifier for an existing message queue, not when a | ||
| 1183 | * new message queue is created. | ||
| 1184 | * @msq contains the message queue to act upon. | ||
| 1185 | * @msqflg contains the operation control flags. | ||
| 1186 | * Return 0 if permission is granted. | ||
| 1187 | * @msg_queue_msgctl: | ||
| 1188 | * Check permission when a message control operation specified by @cmd | ||
| 1189 | * is to be performed on the message queue @msq. | ||
| 1190 | * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. | ||
| 1191 | * @msq contains the message queue to act upon. May be NULL. | ||
| 1192 | * @cmd contains the operation to be performed. | ||
| 1193 | * Return 0 if permission is granted. | ||
| 1194 | * @msg_queue_msgsnd: | ||
| 1195 | * Check permission before a message, @msg, is enqueued on the message | ||
| 1196 | * queue, @msq. | ||
| 1197 | * @msq contains the message queue to send message to. | ||
| 1198 | * @msg contains the message to be enqueued. | ||
| 1199 | * @msqflg contains operational flags. | ||
| 1200 | * Return 0 if permission is granted. | ||
| 1201 | * @msg_queue_msgrcv: | ||
| 1202 | * Check permission before a message, @msg, is removed from the message | ||
| 1203 | * queue, @msq. The @target task structure contains a pointer to the | ||
| 1204 | * process that will be receiving the message (not equal to the current | ||
| 1205 | * process when inline receives are being performed). | ||
| 1206 | * @msq contains the message queue to retrieve message from. | ||
| 1207 | * @msg contains the message destination. | ||
| 1208 | * @target contains the task structure for recipient process. | ||
| 1209 | * @type contains the type of message requested. | ||
| 1210 | * @mode contains the operational flags. | ||
| 1211 | * Return 0 if permission is granted. | ||
| 1212 | * | ||
| 1213 | * Security hooks for System V Shared Memory Segments | ||
| 1214 | * | ||
| 1215 | * @shm_alloc_security: | ||
| 1216 | * Allocate and attach a security structure to the shp->shm_perm.security | ||
| 1217 | * field. The security field is initialized to NULL when the structure is | ||
| 1218 | * first created. | ||
| 1219 | * @shp contains the shared memory structure to be modified. | ||
| 1220 | * Return 0 if operation was successful and permission is granted. | ||
| 1221 | * @shm_free_security: | ||
| 1222 | * Deallocate the security struct for this memory segment. | ||
| 1223 | * @shp contains the shared memory structure to be modified. | ||
| 1224 | * @shm_associate: | ||
| 1225 | * Check permission when a shared memory region is requested through the | ||
| 1226 | * shmget system call. This hook is only called when returning the shared | ||
| 1227 | * memory region identifier for an existing region, not when a new shared | ||
| 1228 | * memory region is created. | ||
| 1229 | * @shp contains the shared memory structure to be modified. | ||
| 1230 | * @shmflg contains the operation control flags. | ||
| 1231 | * Return 0 if permission is granted. | ||
| 1232 | * @shm_shmctl: | ||
| 1233 | * Check permission when a shared memory control operation specified by | ||
| 1234 | * @cmd is to be performed on the shared memory region @shp. | ||
| 1235 | * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. | ||
| 1236 | * @shp contains shared memory structure to be modified. | ||
| 1237 | * @cmd contains the operation to be performed. | ||
| 1238 | * Return 0 if permission is granted. | ||
| 1239 | * @shm_shmat: | ||
| 1240 | * Check permissions prior to allowing the shmat system call to attach the | ||
| 1241 | * shared memory segment @shp to the data segment of the calling process. | ||
| 1242 | * The attaching address is specified by @shmaddr. | ||
| 1243 | * @shp contains the shared memory structure to be modified. | ||
| 1244 | * @shmaddr contains the address to attach memory region to. | ||
| 1245 | * @shmflg contains the operational flags. | ||
| 1246 | * Return 0 if permission is granted. | ||
| 1247 | * | ||
| 1248 | * Security hooks for System V Semaphores | ||
| 1249 | * | ||
| 1250 | * @sem_alloc_security: | ||
| 1251 | * Allocate and attach a security structure to the sma->sem_perm.security | ||
| 1252 | * field. The security field is initialized to NULL when the structure is | ||
| 1253 | * first created. | ||
| 1254 | * @sma contains the semaphore structure | ||
| 1255 | * Return 0 if operation was successful and permission is granted. | ||
| 1256 | * @sem_free_security: | ||
| 1257 | * deallocate security struct for this semaphore | ||
| 1258 | * @sma contains the semaphore structure. | ||
| 1259 | * @sem_associate: | ||
| 1260 | * Check permission when a semaphore is requested through the semget | ||
| 1261 | * system call. This hook is only called when returning the semaphore | ||
| 1262 | * identifier for an existing semaphore, not when a new one must be | ||
| 1263 | * created. | ||
| 1264 | * @sma contains the semaphore structure. | ||
| 1265 | * @semflg contains the operation control flags. | ||
| 1266 | * Return 0 if permission is granted. | ||
| 1267 | * @sem_semctl: | ||
| 1268 | * Check permission when a semaphore operation specified by @cmd is to be | ||
| 1269 | * performed on the semaphore @sma. The @sma may be NULL, e.g. for | ||
| 1270 | * IPC_INFO or SEM_INFO. | ||
| 1271 | * @sma contains the semaphore structure. May be NULL. | ||
| 1272 | * @cmd contains the operation to be performed. | ||
| 1273 | * Return 0 if permission is granted. | ||
| 1274 | * @sem_semop | ||
| 1275 | * Check permissions before performing operations on members of the | ||
| 1276 | * semaphore set @sma. If the @alter flag is nonzero, the semaphore set | ||
| 1277 | * may be modified. | ||
| 1278 | * @sma contains the semaphore structure. | ||
| 1279 | * @sops contains the operations to perform. | ||
| 1280 | * @nsops contains the number of operations to perform. | ||
| 1281 | * @alter contains the flag indicating whether changes are to be made. | ||
| 1282 | * Return 0 if permission is granted. | ||
| 1283 | * | ||
| 1284 | * @binder_set_context_mgr | ||
| 1285 | * Check whether @mgr is allowed to be the binder context manager. | ||
| 1286 | * @mgr contains the task_struct for the task being registered. | ||
| 1287 | * Return 0 if permission is granted. | ||
| 1288 | * @binder_transaction | ||
| 1289 | * Check whether @from is allowed to invoke a binder transaction call | ||
| 1290 | * to @to. | ||
| 1291 | * @from contains the task_struct for the sending task. | ||
| 1292 | * @to contains the task_struct for the receiving task. | ||
| 1293 | * @binder_transfer_binder | ||
| 1294 | * Check whether @from is allowed to transfer a binder reference to @to. | ||
| 1295 | * @from contains the task_struct for the sending task. | ||
| 1296 | * @to contains the task_struct for the receiving task. | ||
| 1297 | * @binder_transfer_file | ||
| 1298 | * Check whether @from is allowed to transfer @file to @to. | ||
| 1299 | * @from contains the task_struct for the sending task. | ||
| 1300 | * @file contains the struct file being transferred. | ||
| 1301 | * @to contains the task_struct for the receiving task. | ||
| 1302 | * | ||
| 1303 | * @ptrace_access_check: | ||
| 1304 | * Check permission before allowing the current process to trace the | ||
| 1305 | * @child process. | ||
| 1306 | * Security modules may also want to perform a process tracing check | ||
| 1307 | * during an execve in the set_security or apply_creds hooks of | ||
| 1308 | * tracing check during an execve in the bprm_set_creds hook of | ||
| 1309 | * binprm_security_ops if the process is being traced and its security | ||
| 1310 | * attributes would be changed by the execve. | ||
| 1311 | * @child contains the task_struct structure for the target process. | ||
| 1312 | * @mode contains the PTRACE_MODE flags indicating the form of access. | ||
| 1313 | * Return 0 if permission is granted. | ||
| 1314 | * @ptrace_traceme: | ||
| 1315 | * Check that the @parent process has sufficient permission to trace the | ||
| 1316 | * current process before allowing the current process to present itself | ||
| 1317 | * to the @parent process for tracing. | ||
| 1318 | * @parent contains the task_struct structure for debugger process. | ||
| 1319 | * Return 0 if permission is granted. | ||
| 1320 | * @capget: | ||
| 1321 | * Get the @effective, @inheritable, and @permitted capability sets for | ||
| 1322 | * the @target process. The hook may also perform permission checking to | ||
| 1323 | * determine if the current process is allowed to see the capability sets | ||
| 1324 | * of the @target process. | ||
| 1325 | * @target contains the task_struct structure for target process. | ||
| 1326 | * @effective contains the effective capability set. | ||
| 1327 | * @inheritable contains the inheritable capability set. | ||
| 1328 | * @permitted contains the permitted capability set. | ||
| 1329 | * Return 0 if the capability sets were successfully obtained. | ||
| 1330 | * @capset: | ||
| 1331 | * Set the @effective, @inheritable, and @permitted capability sets for | ||
| 1332 | * the current process. | ||
| 1333 | * @new contains the new credentials structure for target process. | ||
| 1334 | * @old contains the current credentials structure for target process. | ||
| 1335 | * @effective contains the effective capability set. | ||
| 1336 | * @inheritable contains the inheritable capability set. | ||
| 1337 | * @permitted contains the permitted capability set. | ||
| 1338 | * Return 0 and update @new if permission is granted. | ||
| 1339 | * @capable: | ||
| 1340 | * Check whether the @tsk process has the @cap capability in the indicated | ||
| 1341 | * credentials. | ||
| 1342 | * @cred contains the credentials to use. | ||
| 1343 | * @ns contains the user namespace we want the capability in | ||
| 1344 | * @cap contains the capability <include/linux/capability.h>. | ||
| 1345 | * @audit: Whether to write an audit message or not | ||
| 1346 | * Return 0 if the capability is granted for @tsk. | ||
| 1347 | * @syslog: | ||
| 1348 | * Check permission before accessing the kernel message ring or changing | ||
| 1349 | * logging to the console. | ||
| 1350 | * See the syslog(2) manual page for an explanation of the @type values. | ||
| 1351 | * @type contains the type of action. | ||
| 1352 | * @from_file indicates the context of action (if it came from /proc). | ||
| 1353 | * Return 0 if permission is granted. | ||
| 1354 | * @settime: | ||
| 1355 | * Check permission to change the system time. | ||
| 1356 | * struct timespec and timezone are defined in include/linux/time.h | ||
| 1357 | * @ts contains new time | ||
| 1358 | * @tz contains new timezone | ||
| 1359 | * Return 0 if permission is granted. | ||
| 1360 | * @vm_enough_memory: | ||
| 1361 | * Check permissions for allocating a new virtual mapping. | ||
| 1362 | * @mm contains the mm struct it is being added to. | ||
| 1363 | * @pages contains the number of pages. | ||
| 1364 | * Return 0 if permission is granted. | ||
| 1365 | * | ||
| 1366 | * @ismaclabel: | ||
| 1367 | * Check if the extended attribute specified by @name | ||
| 1368 | * represents a MAC label. Returns 1 if name is a MAC | ||
| 1369 | * attribute otherwise returns 0. | ||
| 1370 | * @name full extended attribute name to check against | ||
| 1371 | * LSM as a MAC label. | ||
| 1372 | * | ||
| 1373 | * @secid_to_secctx: | ||
| 1374 | * Convert secid to security context. If secdata is NULL the length of | ||
| 1375 | * the result will be returned in seclen, but no secdata will be returned. | ||
| 1376 | * This does mean that the length could change between calls to check the | ||
| 1377 | * length and the next call which actually allocates and returns the secdata. | ||
| 1378 | * @secid contains the security ID. | ||
| 1379 | * @secdata contains the pointer that stores the converted security context. | ||
| 1380 | * @seclen pointer which contains the length of the data | ||
| 1381 | * @secctx_to_secid: | ||
| 1382 | * Convert security context to secid. | ||
| 1383 | * @secid contains the pointer to the generated security ID. | ||
| 1384 | * @secdata contains the security context. | ||
| 1385 | * | ||
| 1386 | * @release_secctx: | ||
| 1387 | * Release the security context. | ||
| 1388 | * @secdata contains the security context. | ||
| 1389 | * @seclen contains the length of the security context. | ||
| 1390 | * | ||
| 1391 | * Security hooks for Audit | ||
| 1392 | * | ||
| 1393 | * @audit_rule_init: | ||
| 1394 | * Allocate and initialize an LSM audit rule structure. | ||
| 1395 | * @field contains the required Audit action. Fields flags are defined in include/linux/audit.h | ||
| 1396 | * @op contains the operator the rule uses. | ||
| 1397 | * @rulestr contains the context where the rule will be applied to. | ||
| 1398 | * @lsmrule contains a pointer to receive the result. | ||
| 1399 | * Return 0 if @lsmrule has been successfully set, | ||
| 1400 | * -EINVAL in case of an invalid rule. | ||
| 1401 | * | ||
| 1402 | * @audit_rule_known: | ||
| 1403 | * Specifies whether given @rule contains any fields related to current LSM. | ||
| 1404 | * @rule contains the audit rule of interest. | ||
| 1405 | * Return 1 in case of relation found, 0 otherwise. | ||
| 1406 | * | ||
| 1407 | * @audit_rule_match: | ||
| 1408 | * Determine if given @secid matches a rule previously approved | ||
| 1409 | * by @audit_rule_known. | ||
| 1410 | * @secid contains the security id in question. | ||
| 1411 | * @field contains the field which relates to current LSM. | ||
| 1412 | * @op contains the operator that will be used for matching. | ||
| 1413 | * @rule points to the audit rule that will be checked against. | ||
| 1414 | * @actx points to the audit context associated with the check. | ||
| 1415 | * Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure. | ||
| 1416 | * | ||
| 1417 | * @audit_rule_free: | ||
| 1418 | * Deallocate the LSM audit rule structure previously allocated by | ||
| 1419 | * audit_rule_init. | ||
| 1420 | * @rule contains the allocated rule | ||
| 1421 | * | ||
| 1422 | * @inode_notifysecctx: | ||
| 1423 | * Notify the security module of what the security context of an inode | ||
| 1424 | * should be. Initializes the incore security context managed by the | ||
| 1425 | * security module for this inode. Example usage: NFS client invokes | ||
| 1426 | * this hook to initialize the security context in its incore inode to the | ||
| 1427 | * value provided by the server for the file when the server returned the | ||
| 1428 | * file's attributes to the client. | ||
| 1429 | * | ||
| 1430 | * Must be called with inode->i_mutex locked. | ||
| 1431 | * | ||
| 1432 | * @inode we wish to set the security context of. | ||
| 1433 | * @ctx contains the string which we wish to set in the inode. | ||
| 1434 | * @ctxlen contains the length of @ctx. | ||
| 1435 | * | ||
| 1436 | * @inode_setsecctx: | ||
| 1437 | * Change the security context of an inode. Updates the | ||
| 1438 | * incore security context managed by the security module and invokes the | ||
| 1439 | * fs code as needed (via __vfs_setxattr_noperm) to update any backing | ||
| 1440 | * xattrs that represent the context. Example usage: NFS server invokes | ||
| 1441 | * this hook to change the security context in its incore inode and on the | ||
| 1442 | * backing filesystem to a value provided by the client on a SETATTR | ||
| 1443 | * operation. | ||
| 1444 | * | ||
| 1445 | * Must be called with inode->i_mutex locked. | ||
| 1446 | * | ||
| 1447 | * @dentry contains the inode we wish to set the security context of. | ||
| 1448 | * @ctx contains the string which we wish to set in the inode. | ||
| 1449 | * @ctxlen contains the length of @ctx. | ||
| 1450 | * | ||
| 1451 | * @inode_getsecctx: | ||
| 1452 | * On success, returns 0 and fills out @ctx and @ctxlen with the security | ||
| 1453 | * context for the given @inode. | ||
| 1454 | * | ||
| 1455 | * @inode we wish to get the security context of. | ||
| 1456 | * @ctx is a pointer in which to place the allocated security context. | ||
| 1457 | * @ctxlen points to the place to put the length of @ctx. | ||
| 1458 | * This is the main security structure. | ||
| 1459 | */ | ||
| 1460 | struct security_operations { | ||
| 1461 | char name[SECURITY_NAME_MAX + 1]; | ||
| 1462 | |||
| 1463 | int (*binder_set_context_mgr) (struct task_struct *mgr); | ||
| 1464 | int (*binder_transaction) (struct task_struct *from, | ||
| 1465 | struct task_struct *to); | ||
| 1466 | int (*binder_transfer_binder) (struct task_struct *from, | ||
| 1467 | struct task_struct *to); | ||
| 1468 | int (*binder_transfer_file) (struct task_struct *from, | ||
| 1469 | struct task_struct *to, struct file *file); | ||
| 1470 | |||
| 1471 | int (*ptrace_access_check) (struct task_struct *child, unsigned int mode); | ||
| 1472 | int (*ptrace_traceme) (struct task_struct *parent); | ||
| 1473 | int (*capget) (struct task_struct *target, | ||
| 1474 | kernel_cap_t *effective, | ||
| 1475 | kernel_cap_t *inheritable, kernel_cap_t *permitted); | ||
| 1476 | int (*capset) (struct cred *new, | ||
| 1477 | const struct cred *old, | ||
| 1478 | const kernel_cap_t *effective, | ||
| 1479 | const kernel_cap_t *inheritable, | ||
| 1480 | const kernel_cap_t *permitted); | ||
| 1481 | int (*capable) (const struct cred *cred, struct user_namespace *ns, | ||
| 1482 | int cap, int audit); | ||
| 1483 | int (*quotactl) (int cmds, int type, int id, struct super_block *sb); | ||
| 1484 | int (*quota_on) (struct dentry *dentry); | ||
| 1485 | int (*syslog) (int type); | ||
| 1486 | int (*settime) (const struct timespec *ts, const struct timezone *tz); | ||
| 1487 | int (*vm_enough_memory) (struct mm_struct *mm, long pages); | ||
| 1488 | |||
| 1489 | int (*bprm_set_creds) (struct linux_binprm *bprm); | ||
| 1490 | int (*bprm_check_security) (struct linux_binprm *bprm); | ||
| 1491 | int (*bprm_secureexec) (struct linux_binprm *bprm); | ||
| 1492 | void (*bprm_committing_creds) (struct linux_binprm *bprm); | ||
| 1493 | void (*bprm_committed_creds) (struct linux_binprm *bprm); | ||
| 1494 | |||
| 1495 | int (*sb_alloc_security) (struct super_block *sb); | ||
| 1496 | void (*sb_free_security) (struct super_block *sb); | ||
| 1497 | int (*sb_copy_data) (char *orig, char *copy); | ||
| 1498 | int (*sb_remount) (struct super_block *sb, void *data); | ||
| 1499 | int (*sb_kern_mount) (struct super_block *sb, int flags, void *data); | ||
| 1500 | int (*sb_show_options) (struct seq_file *m, struct super_block *sb); | ||
| 1501 | int (*sb_statfs) (struct dentry *dentry); | ||
| 1502 | int (*sb_mount) (const char *dev_name, struct path *path, | ||
| 1503 | const char *type, unsigned long flags, void *data); | ||
| 1504 | int (*sb_umount) (struct vfsmount *mnt, int flags); | ||
| 1505 | int (*sb_pivotroot) (struct path *old_path, | ||
| 1506 | struct path *new_path); | ||
| 1507 | int (*sb_set_mnt_opts) (struct super_block *sb, | ||
| 1508 | struct security_mnt_opts *opts, | ||
| 1509 | unsigned long kern_flags, | ||
| 1510 | unsigned long *set_kern_flags); | ||
| 1511 | int (*sb_clone_mnt_opts) (const struct super_block *oldsb, | ||
| 1512 | struct super_block *newsb); | ||
| 1513 | int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts); | ||
| 1514 | int (*dentry_init_security) (struct dentry *dentry, int mode, | ||
| 1515 | struct qstr *name, void **ctx, | ||
| 1516 | u32 *ctxlen); | ||
| 1517 | |||
| 1518 | |||
| 1519 | #ifdef CONFIG_SECURITY_PATH | ||
| 1520 | int (*path_unlink) (struct path *dir, struct dentry *dentry); | ||
| 1521 | int (*path_mkdir) (struct path *dir, struct dentry *dentry, umode_t mode); | ||
| 1522 | int (*path_rmdir) (struct path *dir, struct dentry *dentry); | ||
| 1523 | int (*path_mknod) (struct path *dir, struct dentry *dentry, umode_t mode, | ||
| 1524 | unsigned int dev); | ||
| 1525 | int (*path_truncate) (struct path *path); | ||
| 1526 | int (*path_symlink) (struct path *dir, struct dentry *dentry, | ||
| 1527 | const char *old_name); | ||
| 1528 | int (*path_link) (struct dentry *old_dentry, struct path *new_dir, | ||
| 1529 | struct dentry *new_dentry); | ||
| 1530 | int (*path_rename) (struct path *old_dir, struct dentry *old_dentry, | ||
| 1531 | struct path *new_dir, struct dentry *new_dentry); | ||
| 1532 | int (*path_chmod) (struct path *path, umode_t mode); | ||
| 1533 | int (*path_chown) (struct path *path, kuid_t uid, kgid_t gid); | ||
| 1534 | int (*path_chroot) (struct path *path); | ||
| 1535 | #endif | ||
| 1536 | |||
| 1537 | int (*inode_alloc_security) (struct inode *inode); | ||
| 1538 | void (*inode_free_security) (struct inode *inode); | ||
| 1539 | int (*inode_init_security) (struct inode *inode, struct inode *dir, | ||
| 1540 | const struct qstr *qstr, const char **name, | ||
| 1541 | void **value, size_t *len); | ||
| 1542 | int (*inode_create) (struct inode *dir, | ||
| 1543 | struct dentry *dentry, umode_t mode); | ||
| 1544 | int (*inode_link) (struct dentry *old_dentry, | ||
| 1545 | struct inode *dir, struct dentry *new_dentry); | ||
| 1546 | int (*inode_unlink) (struct inode *dir, struct dentry *dentry); | ||
| 1547 | int (*inode_symlink) (struct inode *dir, | ||
| 1548 | struct dentry *dentry, const char *old_name); | ||
| 1549 | int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, umode_t mode); | ||
| 1550 | int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); | ||
| 1551 | int (*inode_mknod) (struct inode *dir, struct dentry *dentry, | ||
| 1552 | umode_t mode, dev_t dev); | ||
| 1553 | int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, | ||
| 1554 | struct inode *new_dir, struct dentry *new_dentry); | ||
| 1555 | int (*inode_readlink) (struct dentry *dentry); | ||
| 1556 | int (*inode_follow_link) (struct dentry *dentry, struct inode *inode, | ||
| 1557 | bool rcu); | ||
| 1558 | int (*inode_permission) (struct inode *inode, int mask); | ||
| 1559 | int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); | ||
| 1560 | int (*inode_getattr) (const struct path *path); | ||
| 1561 | int (*inode_setxattr) (struct dentry *dentry, const char *name, | ||
| 1562 | const void *value, size_t size, int flags); | ||
| 1563 | void (*inode_post_setxattr) (struct dentry *dentry, const char *name, | ||
| 1564 | const void *value, size_t size, int flags); | ||
| 1565 | int (*inode_getxattr) (struct dentry *dentry, const char *name); | ||
| 1566 | int (*inode_listxattr) (struct dentry *dentry); | ||
| 1567 | int (*inode_removexattr) (struct dentry *dentry, const char *name); | ||
| 1568 | int (*inode_need_killpriv) (struct dentry *dentry); | ||
| 1569 | int (*inode_killpriv) (struct dentry *dentry); | ||
| 1570 | int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc); | ||
| 1571 | int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags); | ||
| 1572 | int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size); | ||
| 1573 | void (*inode_getsecid) (const struct inode *inode, u32 *secid); | ||
| 1574 | |||
| 1575 | int (*file_permission) (struct file *file, int mask); | ||
| 1576 | int (*file_alloc_security) (struct file *file); | ||
| 1577 | void (*file_free_security) (struct file *file); | ||
| 1578 | int (*file_ioctl) (struct file *file, unsigned int cmd, | ||
| 1579 | unsigned long arg); | ||
| 1580 | int (*mmap_addr) (unsigned long addr); | ||
| 1581 | int (*mmap_file) (struct file *file, | ||
| 1582 | unsigned long reqprot, unsigned long prot, | ||
| 1583 | unsigned long flags); | ||
| 1584 | int (*file_mprotect) (struct vm_area_struct *vma, | ||
| 1585 | unsigned long reqprot, | ||
| 1586 | unsigned long prot); | ||
| 1587 | int (*file_lock) (struct file *file, unsigned int cmd); | ||
| 1588 | int (*file_fcntl) (struct file *file, unsigned int cmd, | ||
| 1589 | unsigned long arg); | ||
| 1590 | void (*file_set_fowner) (struct file *file); | ||
| 1591 | int (*file_send_sigiotask) (struct task_struct *tsk, | ||
| 1592 | struct fown_struct *fown, int sig); | ||
| 1593 | int (*file_receive) (struct file *file); | ||
| 1594 | int (*file_open) (struct file *file, const struct cred *cred); | ||
| 1595 | |||
| 1596 | int (*task_create) (unsigned long clone_flags); | ||
| 1597 | void (*task_free) (struct task_struct *task); | ||
| 1598 | int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp); | ||
| 1599 | void (*cred_free) (struct cred *cred); | ||
| 1600 | int (*cred_prepare)(struct cred *new, const struct cred *old, | ||
| 1601 | gfp_t gfp); | ||
| 1602 | void (*cred_transfer)(struct cred *new, const struct cred *old); | ||
| 1603 | int (*kernel_act_as)(struct cred *new, u32 secid); | ||
| 1604 | int (*kernel_create_files_as)(struct cred *new, struct inode *inode); | ||
| 1605 | int (*kernel_fw_from_file)(struct file *file, char *buf, size_t size); | ||
| 1606 | int (*kernel_module_request)(char *kmod_name); | ||
| 1607 | int (*kernel_module_from_file)(struct file *file); | ||
| 1608 | int (*task_fix_setuid) (struct cred *new, const struct cred *old, | ||
| 1609 | int flags); | ||
| 1610 | int (*task_setpgid) (struct task_struct *p, pid_t pgid); | ||
| 1611 | int (*task_getpgid) (struct task_struct *p); | ||
| 1612 | int (*task_getsid) (struct task_struct *p); | ||
| 1613 | void (*task_getsecid) (struct task_struct *p, u32 *secid); | ||
| 1614 | int (*task_setnice) (struct task_struct *p, int nice); | ||
| 1615 | int (*task_setioprio) (struct task_struct *p, int ioprio); | ||
| 1616 | int (*task_getioprio) (struct task_struct *p); | ||
| 1617 | int (*task_setrlimit) (struct task_struct *p, unsigned int resource, | ||
| 1618 | struct rlimit *new_rlim); | ||
| 1619 | int (*task_setscheduler) (struct task_struct *p); | ||
| 1620 | int (*task_getscheduler) (struct task_struct *p); | ||
| 1621 | int (*task_movememory) (struct task_struct *p); | ||
| 1622 | int (*task_kill) (struct task_struct *p, | ||
| 1623 | struct siginfo *info, int sig, u32 secid); | ||
| 1624 | int (*task_wait) (struct task_struct *p); | ||
| 1625 | int (*task_prctl) (int option, unsigned long arg2, | ||
| 1626 | unsigned long arg3, unsigned long arg4, | ||
| 1627 | unsigned long arg5); | ||
| 1628 | void (*task_to_inode) (struct task_struct *p, struct inode *inode); | ||
| 1629 | |||
| 1630 | int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag); | ||
| 1631 | void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid); | ||
| 1632 | |||
| 1633 | int (*msg_msg_alloc_security) (struct msg_msg *msg); | ||
| 1634 | void (*msg_msg_free_security) (struct msg_msg *msg); | ||
| 1635 | |||
| 1636 | int (*msg_queue_alloc_security) (struct msg_queue *msq); | ||
| 1637 | void (*msg_queue_free_security) (struct msg_queue *msq); | ||
| 1638 | int (*msg_queue_associate) (struct msg_queue *msq, int msqflg); | ||
| 1639 | int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd); | ||
| 1640 | int (*msg_queue_msgsnd) (struct msg_queue *msq, | ||
| 1641 | struct msg_msg *msg, int msqflg); | ||
| 1642 | int (*msg_queue_msgrcv) (struct msg_queue *msq, | ||
| 1643 | struct msg_msg *msg, | ||
| 1644 | struct task_struct *target, | ||
| 1645 | long type, int mode); | ||
| 1646 | |||
| 1647 | int (*shm_alloc_security) (struct shmid_kernel *shp); | ||
| 1648 | void (*shm_free_security) (struct shmid_kernel *shp); | ||
| 1649 | int (*shm_associate) (struct shmid_kernel *shp, int shmflg); | ||
| 1650 | int (*shm_shmctl) (struct shmid_kernel *shp, int cmd); | ||
| 1651 | int (*shm_shmat) (struct shmid_kernel *shp, | ||
| 1652 | char __user *shmaddr, int shmflg); | ||
| 1653 | |||
| 1654 | int (*sem_alloc_security) (struct sem_array *sma); | ||
| 1655 | void (*sem_free_security) (struct sem_array *sma); | ||
| 1656 | int (*sem_associate) (struct sem_array *sma, int semflg); | ||
| 1657 | int (*sem_semctl) (struct sem_array *sma, int cmd); | ||
| 1658 | int (*sem_semop) (struct sem_array *sma, | ||
| 1659 | struct sembuf *sops, unsigned nsops, int alter); | ||
| 1660 | |||
| 1661 | int (*netlink_send) (struct sock *sk, struct sk_buff *skb); | ||
| 1662 | |||
| 1663 | void (*d_instantiate) (struct dentry *dentry, struct inode *inode); | ||
| 1664 | |||
| 1665 | int (*getprocattr) (struct task_struct *p, char *name, char **value); | ||
| 1666 | int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size); | ||
| 1667 | int (*ismaclabel) (const char *name); | ||
| 1668 | int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen); | ||
| 1669 | int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid); | ||
| 1670 | void (*release_secctx) (char *secdata, u32 seclen); | ||
| 1671 | |||
| 1672 | int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen); | ||
| 1673 | int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen); | ||
| 1674 | int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen); | ||
| 1675 | |||
| 1676 | #ifdef CONFIG_SECURITY_NETWORK | ||
| 1677 | int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk); | ||
| 1678 | int (*unix_may_send) (struct socket *sock, struct socket *other); | ||
| 1679 | |||
| 1680 | int (*socket_create) (int family, int type, int protocol, int kern); | ||
| 1681 | int (*socket_post_create) (struct socket *sock, int family, | ||
| 1682 | int type, int protocol, int kern); | ||
| 1683 | int (*socket_bind) (struct socket *sock, | ||
| 1684 | struct sockaddr *address, int addrlen); | ||
| 1685 | int (*socket_connect) (struct socket *sock, | ||
| 1686 | struct sockaddr *address, int addrlen); | ||
| 1687 | int (*socket_listen) (struct socket *sock, int backlog); | ||
| 1688 | int (*socket_accept) (struct socket *sock, struct socket *newsock); | ||
| 1689 | int (*socket_sendmsg) (struct socket *sock, | ||
| 1690 | struct msghdr *msg, int size); | ||
| 1691 | int (*socket_recvmsg) (struct socket *sock, | ||
| 1692 | struct msghdr *msg, int size, int flags); | ||
| 1693 | int (*socket_getsockname) (struct socket *sock); | ||
| 1694 | int (*socket_getpeername) (struct socket *sock); | ||
| 1695 | int (*socket_getsockopt) (struct socket *sock, int level, int optname); | ||
| 1696 | int (*socket_setsockopt) (struct socket *sock, int level, int optname); | ||
| 1697 | int (*socket_shutdown) (struct socket *sock, int how); | ||
| 1698 | int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb); | ||
| 1699 | int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len); | ||
| 1700 | int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid); | ||
| 1701 | int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority); | ||
| 1702 | void (*sk_free_security) (struct sock *sk); | ||
| 1703 | void (*sk_clone_security) (const struct sock *sk, struct sock *newsk); | ||
| 1704 | void (*sk_getsecid) (struct sock *sk, u32 *secid); | ||
| 1705 | void (*sock_graft) (struct sock *sk, struct socket *parent); | ||
| 1706 | int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb, | ||
| 1707 | struct request_sock *req); | ||
| 1708 | void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req); | ||
| 1709 | void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb); | ||
| 1710 | int (*secmark_relabel_packet) (u32 secid); | ||
| 1711 | void (*secmark_refcount_inc) (void); | ||
| 1712 | void (*secmark_refcount_dec) (void); | ||
| 1713 | void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl); | ||
| 1714 | int (*tun_dev_alloc_security) (void **security); | ||
| 1715 | void (*tun_dev_free_security) (void *security); | ||
| 1716 | int (*tun_dev_create) (void); | ||
| 1717 | int (*tun_dev_attach_queue) (void *security); | ||
| 1718 | int (*tun_dev_attach) (struct sock *sk, void *security); | ||
| 1719 | int (*tun_dev_open) (void *security); | ||
| 1720 | #endif /* CONFIG_SECURITY_NETWORK */ | ||
| 1721 | |||
| 1722 | #ifdef CONFIG_SECURITY_NETWORK_XFRM | ||
| 1723 | int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp, | ||
| 1724 | struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); | ||
| 1725 | int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx); | ||
| 1726 | void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx); | ||
| 1727 | int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx); | ||
| 1728 | int (*xfrm_state_alloc) (struct xfrm_state *x, | ||
| 1729 | struct xfrm_user_sec_ctx *sec_ctx); | ||
| 1730 | int (*xfrm_state_alloc_acquire) (struct xfrm_state *x, | ||
| 1731 | struct xfrm_sec_ctx *polsec, | ||
| 1732 | u32 secid); | ||
| 1733 | void (*xfrm_state_free_security) (struct xfrm_state *x); | ||
| 1734 | int (*xfrm_state_delete_security) (struct xfrm_state *x); | ||
| 1735 | int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); | ||
| 1736 | int (*xfrm_state_pol_flow_match) (struct xfrm_state *x, | ||
| 1737 | struct xfrm_policy *xp, | ||
| 1738 | const struct flowi *fl); | ||
| 1739 | int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall); | ||
| 1740 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | ||
| 1741 | |||
| 1742 | /* key management security hooks */ | ||
| 1743 | #ifdef CONFIG_KEYS | ||
| 1744 | int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags); | ||
| 1745 | void (*key_free) (struct key *key); | ||
| 1746 | int (*key_permission) (key_ref_t key_ref, | ||
| 1747 | const struct cred *cred, | ||
| 1748 | unsigned perm); | ||
| 1749 | int (*key_getsecurity)(struct key *key, char **_buffer); | ||
| 1750 | #endif /* CONFIG_KEYS */ | ||
| 1751 | |||
| 1752 | #ifdef CONFIG_AUDIT | ||
| 1753 | int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule); | ||
| 1754 | int (*audit_rule_known) (struct audit_krule *krule); | ||
| 1755 | int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule, | ||
| 1756 | struct audit_context *actx); | ||
| 1757 | void (*audit_rule_free) (void *lsmrule); | ||
| 1758 | #endif /* CONFIG_AUDIT */ | ||
| 1759 | }; | ||
| 1760 | |||
| 1761 | /* prototypes */ | 181 | /* prototypes */ |
| 1762 | extern int security_init(void); | 182 | extern int security_init(void); |
| 1763 | extern int security_module_enable(struct security_operations *ops); | ||
| 1764 | extern int register_security(struct security_operations *ops); | ||
| 1765 | extern void __init security_fixup_ops(struct security_operations *ops); | ||
| 1766 | |||
| 1767 | 183 | ||
| 1768 | /* Security operations */ | 184 | /* Security operations */ |
| 1769 | int security_binder_set_context_mgr(struct task_struct *mgr); | 185 | int security_binder_set_context_mgr(struct task_struct *mgr); |
| @@ -2049,7 +465,7 @@ static inline int security_settime(const struct timespec *ts, | |||
| 2049 | 465 | ||
| 2050 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) | 466 | static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
| 2051 | { | 467 | { |
| 2052 | return cap_vm_enough_memory(mm, pages); | 468 | return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages)); |
| 2053 | } | 469 | } |
| 2054 | 470 | ||
| 2055 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) | 471 | static inline int security_bprm_set_creds(struct linux_binprm *bprm) |
| @@ -2653,7 +1069,7 @@ static inline int security_setprocattr(struct task_struct *p, char *name, void * | |||
| 2653 | 1069 | ||
| 2654 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) | 1070 | static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) |
| 2655 | { | 1071 | { |
| 2656 | return cap_netlink_send(sk, skb); | 1072 | return 0; |
| 2657 | } | 1073 | } |
| 2658 | 1074 | ||
| 2659 | static inline int security_ismaclabel(const char *name) | 1075 | static inline int security_ismaclabel(const char *name) |
| @@ -3221,36 +1637,5 @@ static inline void free_secdata(void *secdata) | |||
| 3221 | { } | 1637 | { } |
| 3222 | #endif /* CONFIG_SECURITY */ | 1638 | #endif /* CONFIG_SECURITY */ |
| 3223 | 1639 | ||
| 3224 | #ifdef CONFIG_SECURITY_YAMA | ||
| 3225 | extern int yama_ptrace_access_check(struct task_struct *child, | ||
| 3226 | unsigned int mode); | ||
| 3227 | extern int yama_ptrace_traceme(struct task_struct *parent); | ||
| 3228 | extern void yama_task_free(struct task_struct *task); | ||
| 3229 | extern int yama_task_prctl(int option, unsigned long arg2, unsigned long arg3, | ||
| 3230 | unsigned long arg4, unsigned long arg5); | ||
| 3231 | #else | ||
| 3232 | static inline int yama_ptrace_access_check(struct task_struct *child, | ||
| 3233 | unsigned int mode) | ||
| 3234 | { | ||
| 3235 | return 0; | ||
| 3236 | } | ||
| 3237 | |||
| 3238 | static inline int yama_ptrace_traceme(struct task_struct *parent) | ||
| 3239 | { | ||
| 3240 | return 0; | ||
| 3241 | } | ||
| 3242 | |||
| 3243 | static inline void yama_task_free(struct task_struct *task) | ||
| 3244 | { | ||
| 3245 | } | ||
| 3246 | |||
| 3247 | static inline int yama_task_prctl(int option, unsigned long arg2, | ||
| 3248 | unsigned long arg3, unsigned long arg4, | ||
| 3249 | unsigned long arg5) | ||
| 3250 | { | ||
| 3251 | return -ENOSYS; | ||
| 3252 | } | ||
| 3253 | #endif /* CONFIG_SECURITY_YAMA */ | ||
| 3254 | |||
| 3255 | #endif /* ! __LINUX_SECURITY_H */ | 1640 | #endif /* ! __LINUX_SECURITY_H */ |
| 3256 | 1641 | ||