1 /* 2 * Security plug functions 3 * 4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> 5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> 6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 */ 13 14 #include <linux/capability.h> 15 #include <linux/module.h> 16 #include <linux/init.h> 17 #include <linux/kernel.h> 18 #include <linux/security.h> 19 #include <linux/integrity.h> 20 #include <linux/ima.h> 21 #include <linux/evm.h> 22 #include <linux/fsnotify.h> 23 #include <net/flow.h> 24 25 #define MAX_LSM_EVM_XATTR 2 26 27 /* Boot-time LSM user choice */ 28 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = 29 CONFIG_DEFAULT_SECURITY; 30 31 static struct security_operations *security_ops; 32 static struct security_operations default_security_ops = { 33 .name = "default", 34 }; 35 36 static inline int __init verify(struct security_operations *ops) 37 { 38 /* verify the security_operations structure exists */ 39 if (!ops) 40 return -EINVAL; 41 security_fixup_ops(ops); 42 return 0; 43 } 44 45 static void __init do_security_initcalls(void) 46 { 47 initcall_t *call; 48 call = __security_initcall_start; 49 while (call < __security_initcall_end) { 50 (*call) (); 51 call++; 52 } 53 } 54 55 /** 56 * security_init - initializes the security framework 57 * 58 * This should be called early in the kernel initialization sequence. 59 */ 60 int __init security_init(void) 61 { 62 printk(KERN_INFO "Security Framework initialized\n"); 63 64 security_fixup_ops(&default_security_ops); 65 security_ops = &default_security_ops; 66 do_security_initcalls(); 67 68 return 0; 69 } 70 71 void reset_security_ops(void) 72 { 73 security_ops = &default_security_ops; 74 } 75 76 /* Save user chosen LSM */ 77 static int __init choose_lsm(char *str) 78 { 79 strncpy(chosen_lsm, str, SECURITY_NAME_MAX); 80 return 1; 81 } 82 __setup("security=", choose_lsm); 83 84 /** 85 * security_module_enable - Load given security module on boot ? 86 * @ops: a pointer to the struct security_operations that is to be checked. 87 * 88 * Each LSM must pass this method before registering its own operations 89 * to avoid security registration races. This method may also be used 90 * to check if your LSM is currently loaded during kernel initialization. 91 * 92 * Return true if: 93 * -The passed LSM is the one chosen by user at boot time, 94 * -or the passed LSM is configured as the default and the user did not 95 * choose an alternate LSM at boot time. 96 * Otherwise, return false. 97 */ 98 int __init security_module_enable(struct security_operations *ops) 99 { 100 return !strcmp(ops->name, chosen_lsm); 101 } 102 103 /** 104 * register_security - registers a security framework with the kernel 105 * @ops: a pointer to the struct security_options that is to be registered 106 * 107 * This function allows a security module to register itself with the 108 * kernel security subsystem. Some rudimentary checking is done on the @ops 109 * value passed to this function. You'll need to check first if your LSM 110 * is allowed to register its @ops by calling security_module_enable(@ops). 111 * 112 * If there is already a security module registered with the kernel, 113 * an error will be returned. Otherwise %0 is returned on success. 114 */ 115 int __init register_security(struct security_operations *ops) 116 { 117 if (verify(ops)) { 118 printk(KERN_DEBUG "%s could not verify " 119 "security_operations structure.\n", __func__); 120 return -EINVAL; 121 } 122 123 if (security_ops != &default_security_ops) 124 return -EAGAIN; 125 126 security_ops = ops; 127 128 return 0; 129 } 130 131 /* Security operations */ 132 133 int security_ptrace_access_check(struct task_struct *child, unsigned int mode) 134 { 135 return security_ops->ptrace_access_check(child, mode); 136 } 137 138 int security_ptrace_traceme(struct task_struct *parent) 139 { 140 return security_ops->ptrace_traceme(parent); 141 } 142 143 int security_capget(struct task_struct *target, 144 kernel_cap_t *effective, 145 kernel_cap_t *inheritable, 146 kernel_cap_t *permitted) 147 { 148 return security_ops->capget(target, effective, inheritable, permitted); 149 } 150 151 int security_capset(struct cred *new, const struct cred *old, 152 const kernel_cap_t *effective, 153 const kernel_cap_t *inheritable, 154 const kernel_cap_t *permitted) 155 { 156 return security_ops->capset(new, old, 157 effective, inheritable, permitted); 158 } 159 160 int security_capable(const struct cred *cred, struct user_namespace *ns, 161 int cap) 162 { 163 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT); 164 } 165 166 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, 167 int cap) 168 { 169 return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); 170 } 171 172 int security_quotactl(int cmds, int type, int id, struct super_block *sb) 173 { 174 return security_ops->quotactl(cmds, type, id, sb); 175 } 176 177 int security_quota_on(struct dentry *dentry) 178 { 179 return security_ops->quota_on(dentry); 180 } 181 182 int security_syslog(int type) 183 { 184 return security_ops->syslog(type); 185 } 186 187 int security_settime(const struct timespec *ts, const struct timezone *tz) 188 { 189 return security_ops->settime(ts, tz); 190 } 191 192 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 193 { 194 return security_ops->vm_enough_memory(mm, pages); 195 } 196 197 int security_bprm_set_creds(struct linux_binprm *bprm) 198 { 199 return security_ops->bprm_set_creds(bprm); 200 } 201 202 int security_bprm_check(struct linux_binprm *bprm) 203 { 204 int ret; 205 206 ret = security_ops->bprm_check_security(bprm); 207 if (ret) 208 return ret; 209 return ima_bprm_check(bprm); 210 } 211 212 void security_bprm_committing_creds(struct linux_binprm *bprm) 213 { 214 security_ops->bprm_committing_creds(bprm); 215 } 216 217 void security_bprm_committed_creds(struct linux_binprm *bprm) 218 { 219 security_ops->bprm_committed_creds(bprm); 220 } 221 222 int security_bprm_secureexec(struct linux_binprm *bprm) 223 { 224 return security_ops->bprm_secureexec(bprm); 225 } 226 227 int security_sb_alloc(struct super_block *sb) 228 { 229 return security_ops->sb_alloc_security(sb); 230 } 231 232 void security_sb_free(struct super_block *sb) 233 { 234 security_ops->sb_free_security(sb); 235 } 236 237 int security_sb_copy_data(char *orig, char *copy) 238 { 239 return security_ops->sb_copy_data(orig, copy); 240 } 241 EXPORT_SYMBOL(security_sb_copy_data); 242 243 int security_sb_remount(struct super_block *sb, void *data) 244 { 245 return security_ops->sb_remount(sb, data); 246 } 247 248 int security_sb_kern_mount(struct super_block *sb, int flags, void *data) 249 { 250 return security_ops->sb_kern_mount(sb, flags, data); 251 } 252 253 int security_sb_show_options(struct seq_file *m, struct super_block *sb) 254 { 255 return security_ops->sb_show_options(m, sb); 256 } 257 258 int security_sb_statfs(struct dentry *dentry) 259 { 260 return security_ops->sb_statfs(dentry); 261 } 262 263 int security_sb_mount(char *dev_name, struct path *path, 264 char *type, unsigned long flags, void *data) 265 { 266 return security_ops->sb_mount(dev_name, path, type, flags, data); 267 } 268 269 int security_sb_umount(struct vfsmount *mnt, int flags) 270 { 271 return security_ops->sb_umount(mnt, flags); 272 } 273 274 int security_sb_pivotroot(struct path *old_path, struct path *new_path) 275 { 276 return security_ops->sb_pivotroot(old_path, new_path); 277 } 278 279 int security_sb_set_mnt_opts(struct super_block *sb, 280 struct security_mnt_opts *opts) 281 { 282 return security_ops->sb_set_mnt_opts(sb, opts); 283 } 284 EXPORT_SYMBOL(security_sb_set_mnt_opts); 285 286 void security_sb_clone_mnt_opts(const struct super_block *oldsb, 287 struct super_block *newsb) 288 { 289 security_ops->sb_clone_mnt_opts(oldsb, newsb); 290 } 291 EXPORT_SYMBOL(security_sb_clone_mnt_opts); 292 293 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 294 { 295 return security_ops->sb_parse_opts_str(options, opts); 296 } 297 EXPORT_SYMBOL(security_sb_parse_opts_str); 298 299 int security_inode_alloc(struct inode *inode) 300 { 301 inode->i_security = NULL; 302 return security_ops->inode_alloc_security(inode); 303 } 304 305 void security_inode_free(struct inode *inode) 306 { 307 integrity_inode_free(inode); 308 security_ops->inode_free_security(inode); 309 } 310 311 int security_inode_init_security(struct inode *inode, struct inode *dir, 312 const struct qstr *qstr, 313 const initxattrs initxattrs, void *fs_data) 314 { 315 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; 316 struct xattr *lsm_xattr, *evm_xattr, *xattr; 317 int ret; 318 319 if (unlikely(IS_PRIVATE(inode))) 320 return 0; 321 322 memset(new_xattrs, 0, sizeof new_xattrs); 323 if (!initxattrs) 324 return security_ops->inode_init_security(inode, dir, qstr, 325 NULL, NULL, NULL); 326 lsm_xattr = new_xattrs; 327 ret = security_ops->inode_init_security(inode, dir, qstr, 328 &lsm_xattr->name, 329 &lsm_xattr->value, 330 &lsm_xattr->value_len); 331 if (ret) 332 goto out; 333 334 evm_xattr = lsm_xattr + 1; 335 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); 336 if (ret) 337 goto out; 338 ret = initxattrs(inode, new_xattrs, fs_data); 339 out: 340 for (xattr = new_xattrs; xattr->name != NULL; xattr++) { 341 kfree(xattr->name); 342 kfree(xattr->value); 343 } 344 return (ret == -EOPNOTSUPP) ? 0 : ret; 345 } 346 EXPORT_SYMBOL(security_inode_init_security); 347 348 int security_old_inode_init_security(struct inode *inode, struct inode *dir, 349 const struct qstr *qstr, char **name, 350 void **value, size_t *len) 351 { 352 if (unlikely(IS_PRIVATE(inode))) 353 return -EOPNOTSUPP; 354 return security_ops->inode_init_security(inode, dir, qstr, name, value, 355 len); 356 } 357 EXPORT_SYMBOL(security_old_inode_init_security); 358 359 #ifdef CONFIG_SECURITY_PATH 360 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode, 361 unsigned int dev) 362 { 363 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 364 return 0; 365 return security_ops->path_mknod(dir, dentry, mode, dev); 366 } 367 EXPORT_SYMBOL(security_path_mknod); 368 369 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode) 370 { 371 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 372 return 0; 373 return security_ops->path_mkdir(dir, dentry, mode); 374 } 375 EXPORT_SYMBOL(security_path_mkdir); 376 377 int security_path_rmdir(struct path *dir, struct dentry *dentry) 378 { 379 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 380 return 0; 381 return security_ops->path_rmdir(dir, dentry); 382 } 383 384 int security_path_unlink(struct path *dir, struct dentry *dentry) 385 { 386 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 387 return 0; 388 return security_ops->path_unlink(dir, dentry); 389 } 390 EXPORT_SYMBOL(security_path_unlink); 391 392 int security_path_symlink(struct path *dir, struct dentry *dentry, 393 const char *old_name) 394 { 395 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 396 return 0; 397 return security_ops->path_symlink(dir, dentry, old_name); 398 } 399 400 int security_path_link(struct dentry *old_dentry, struct path *new_dir, 401 struct dentry *new_dentry) 402 { 403 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 404 return 0; 405 return security_ops->path_link(old_dentry, new_dir, new_dentry); 406 } 407 408 int security_path_rename(struct path *old_dir, struct dentry *old_dentry, 409 struct path *new_dir, struct dentry *new_dentry) 410 { 411 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 412 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 413 return 0; 414 return security_ops->path_rename(old_dir, old_dentry, new_dir, 415 new_dentry); 416 } 417 EXPORT_SYMBOL(security_path_rename); 418 419 int security_path_truncate(struct path *path) 420 { 421 if (unlikely(IS_PRIVATE(path->dentry->d_inode))) 422 return 0; 423 return security_ops->path_truncate(path); 424 } 425 426 int security_path_chmod(struct path *path, umode_t mode) 427 { 428 if (unlikely(IS_PRIVATE(path->dentry->d_inode))) 429 return 0; 430 return security_ops->path_chmod(path, mode); 431 } 432 433 int security_path_chown(struct path *path, uid_t uid, gid_t gid) 434 { 435 if (unlikely(IS_PRIVATE(path->dentry->d_inode))) 436 return 0; 437 return security_ops->path_chown(path, uid, gid); 438 } 439 440 int security_path_chroot(struct path *path) 441 { 442 return security_ops->path_chroot(path); 443 } 444 #endif 445 446 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) 447 { 448 if (unlikely(IS_PRIVATE(dir))) 449 return 0; 450 return security_ops->inode_create(dir, dentry, mode); 451 } 452 EXPORT_SYMBOL_GPL(security_inode_create); 453 454 int security_inode_link(struct dentry *old_dentry, struct inode *dir, 455 struct dentry *new_dentry) 456 { 457 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 458 return 0; 459 return security_ops->inode_link(old_dentry, dir, new_dentry); 460 } 461 462 int security_inode_unlink(struct inode *dir, struct dentry *dentry) 463 { 464 if (unlikely(IS_PRIVATE(dentry->d_inode))) 465 return 0; 466 return security_ops->inode_unlink(dir, dentry); 467 } 468 469 int security_inode_symlink(struct inode *dir, struct dentry *dentry, 470 const char *old_name) 471 { 472 if (unlikely(IS_PRIVATE(dir))) 473 return 0; 474 return security_ops->inode_symlink(dir, dentry, old_name); 475 } 476 477 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) 478 { 479 if (unlikely(IS_PRIVATE(dir))) 480 return 0; 481 return security_ops->inode_mkdir(dir, dentry, mode); 482 } 483 EXPORT_SYMBOL_GPL(security_inode_mkdir); 484 485 int security_inode_rmdir(struct inode *dir, struct dentry *dentry) 486 { 487 if (unlikely(IS_PRIVATE(dentry->d_inode))) 488 return 0; 489 return security_ops->inode_rmdir(dir, dentry); 490 } 491 492 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) 493 { 494 if (unlikely(IS_PRIVATE(dir))) 495 return 0; 496 return security_ops->inode_mknod(dir, dentry, mode, dev); 497 } 498 499 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 500 struct inode *new_dir, struct dentry *new_dentry) 501 { 502 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 503 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 504 return 0; 505 return security_ops->inode_rename(old_dir, old_dentry, 506 new_dir, new_dentry); 507 } 508 509 int security_inode_readlink(struct dentry *dentry) 510 { 511 if (unlikely(IS_PRIVATE(dentry->d_inode))) 512 return 0; 513 return security_ops->inode_readlink(dentry); 514 } 515 516 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) 517 { 518 if (unlikely(IS_PRIVATE(dentry->d_inode))) 519 return 0; 520 return security_ops->inode_follow_link(dentry, nd); 521 } 522 523 int security_inode_permission(struct inode *inode, int mask) 524 { 525 if (unlikely(IS_PRIVATE(inode))) 526 return 0; 527 return security_ops->inode_permission(inode, mask); 528 } 529 530 int security_inode_setattr(struct dentry *dentry, struct iattr *attr) 531 { 532 int ret; 533 534 if (unlikely(IS_PRIVATE(dentry->d_inode))) 535 return 0; 536 ret = security_ops->inode_setattr(dentry, attr); 537 if (ret) 538 return ret; 539 return evm_inode_setattr(dentry, attr); 540 } 541 EXPORT_SYMBOL_GPL(security_inode_setattr); 542 543 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) 544 { 545 if (unlikely(IS_PRIVATE(dentry->d_inode))) 546 return 0; 547 return security_ops->inode_getattr(mnt, dentry); 548 } 549 550 int security_inode_setxattr(struct dentry *dentry, const char *name, 551 const void *value, size_t size, int flags) 552 { 553 int ret; 554 555 if (unlikely(IS_PRIVATE(dentry->d_inode))) 556 return 0; 557 ret = security_ops->inode_setxattr(dentry, name, value, size, flags); 558 if (ret) 559 return ret; 560 return evm_inode_setxattr(dentry, name, value, size); 561 } 562 563 void security_inode_post_setxattr(struct dentry *dentry, const char *name, 564 const void *value, size_t size, int flags) 565 { 566 if (unlikely(IS_PRIVATE(dentry->d_inode))) 567 return; 568 security_ops->inode_post_setxattr(dentry, name, value, size, flags); 569 evm_inode_post_setxattr(dentry, name, value, size); 570 } 571 572 int security_inode_getxattr(struct dentry *dentry, const char *name) 573 { 574 if (unlikely(IS_PRIVATE(dentry->d_inode))) 575 return 0; 576 return security_ops->inode_getxattr(dentry, name); 577 } 578 579 int security_inode_listxattr(struct dentry *dentry) 580 { 581 if (unlikely(IS_PRIVATE(dentry->d_inode))) 582 return 0; 583 return security_ops->inode_listxattr(dentry); 584 } 585 586 int security_inode_removexattr(struct dentry *dentry, const char *name) 587 { 588 int ret; 589 590 if (unlikely(IS_PRIVATE(dentry->d_inode))) 591 return 0; 592 ret = security_ops->inode_removexattr(dentry, name); 593 if (ret) 594 return ret; 595 return evm_inode_removexattr(dentry, name); 596 } 597 598 int security_inode_need_killpriv(struct dentry *dentry) 599 { 600 return security_ops->inode_need_killpriv(dentry); 601 } 602 603 int security_inode_killpriv(struct dentry *dentry) 604 { 605 return security_ops->inode_killpriv(dentry); 606 } 607 608 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) 609 { 610 if (unlikely(IS_PRIVATE(inode))) 611 return -EOPNOTSUPP; 612 return security_ops->inode_getsecurity(inode, name, buffer, alloc); 613 } 614 615 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 616 { 617 if (unlikely(IS_PRIVATE(inode))) 618 return -EOPNOTSUPP; 619 return security_ops->inode_setsecurity(inode, name, value, size, flags); 620 } 621 622 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 623 { 624 if (unlikely(IS_PRIVATE(inode))) 625 return 0; 626 return security_ops->inode_listsecurity(inode, buffer, buffer_size); 627 } 628 629 void security_inode_getsecid(const struct inode *inode, u32 *secid) 630 { 631 security_ops->inode_getsecid(inode, secid); 632 } 633 634 int security_file_permission(struct file *file, int mask) 635 { 636 int ret; 637 638 ret = security_ops->file_permission(file, mask); 639 if (ret) 640 return ret; 641 642 return fsnotify_perm(file, mask); 643 } 644 645 int security_file_alloc(struct file *file) 646 { 647 return security_ops->file_alloc_security(file); 648 } 649 650 void security_file_free(struct file *file) 651 { 652 security_ops->file_free_security(file); 653 } 654 655 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 656 { 657 return security_ops->file_ioctl(file, cmd, arg); 658 } 659 660 int security_mmap_file(struct file *file, unsigned long reqprot, 661 unsigned long prot, unsigned long flags) 662 { 663 int ret; 664 665 ret = security_ops->mmap_file(file, reqprot, prot, flags); 666 if (ret) 667 return ret; 668 return ima_file_mmap(file, prot); 669 } 670 671 int security_mmap_addr(unsigned long addr) 672 { 673 return security_ops->mmap_addr(addr); 674 } 675 676 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 677 unsigned long prot) 678 { 679 return security_ops->file_mprotect(vma, reqprot, prot); 680 } 681 682 int security_file_lock(struct file *file, unsigned int cmd) 683 { 684 return security_ops->file_lock(file, cmd); 685 } 686 687 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 688 { 689 return security_ops->file_fcntl(file, cmd, arg); 690 } 691 692 int security_file_set_fowner(struct file *file) 693 { 694 return security_ops->file_set_fowner(file); 695 } 696 697 int security_file_send_sigiotask(struct task_struct *tsk, 698 struct fown_struct *fown, int sig) 699 { 700 return security_ops->file_send_sigiotask(tsk, fown, sig); 701 } 702 703 int security_file_receive(struct file *file) 704 { 705 return security_ops->file_receive(file); 706 } 707 708 int security_file_open(struct file *file, const struct cred *cred) 709 { 710 int ret; 711 712 ret = security_ops->file_open(file, cred); 713 if (ret) 714 return ret; 715 716 return fsnotify_perm(file, MAY_OPEN); 717 } 718 719 int security_task_create(unsigned long clone_flags) 720 { 721 return security_ops->task_create(clone_flags); 722 } 723 724 void security_task_free(struct task_struct *task) 725 { 726 security_ops->task_free(task); 727 } 728 729 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 730 { 731 return security_ops->cred_alloc_blank(cred, gfp); 732 } 733 734 void security_cred_free(struct cred *cred) 735 { 736 security_ops->cred_free(cred); 737 } 738 739 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) 740 { 741 return security_ops->cred_prepare(new, old, gfp); 742 } 743 744 void security_transfer_creds(struct cred *new, const struct cred *old) 745 { 746 security_ops->cred_transfer(new, old); 747 } 748 749 int security_kernel_act_as(struct cred *new, u32 secid) 750 { 751 return security_ops->kernel_act_as(new, secid); 752 } 753 754 int security_kernel_create_files_as(struct cred *new, struct inode *inode) 755 { 756 return security_ops->kernel_create_files_as(new, inode); 757 } 758 759 int security_kernel_module_request(char *kmod_name) 760 { 761 return security_ops->kernel_module_request(kmod_name); 762 } 763 764 int security_task_fix_setuid(struct cred *new, const struct cred *old, 765 int flags) 766 { 767 return security_ops->task_fix_setuid(new, old, flags); 768 } 769 770 int security_task_setpgid(struct task_struct *p, pid_t pgid) 771 { 772 return security_ops->task_setpgid(p, pgid); 773 } 774 775 int security_task_getpgid(struct task_struct *p) 776 { 777 return security_ops->task_getpgid(p); 778 } 779 780 int security_task_getsid(struct task_struct *p) 781 { 782 return security_ops->task_getsid(p); 783 } 784 785 void security_task_getsecid(struct task_struct *p, u32 *secid) 786 { 787 security_ops->task_getsecid(p, secid); 788 } 789 EXPORT_SYMBOL(security_task_getsecid); 790 791 int security_task_setnice(struct task_struct *p, int nice) 792 { 793 return security_ops->task_setnice(p, nice); 794 } 795 796 int security_task_setioprio(struct task_struct *p, int ioprio) 797 { 798 return security_ops->task_setioprio(p, ioprio); 799 } 800 801 int security_task_getioprio(struct task_struct *p) 802 { 803 return security_ops->task_getioprio(p); 804 } 805 806 int security_task_setrlimit(struct task_struct *p, unsigned int resource, 807 struct rlimit *new_rlim) 808 { 809 return security_ops->task_setrlimit(p, resource, new_rlim); 810 } 811 812 int security_task_setscheduler(struct task_struct *p) 813 { 814 return security_ops->task_setscheduler(p); 815 } 816 817 int security_task_getscheduler(struct task_struct *p) 818 { 819 return security_ops->task_getscheduler(p); 820 } 821 822 int security_task_movememory(struct task_struct *p) 823 { 824 return security_ops->task_movememory(p); 825 } 826 827 int security_task_kill(struct task_struct *p, struct siginfo *info, 828 int sig, u32 secid) 829 { 830 return security_ops->task_kill(p, info, sig, secid); 831 } 832 833 int security_task_wait(struct task_struct *p) 834 { 835 return security_ops->task_wait(p); 836 } 837 838 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 839 unsigned long arg4, unsigned long arg5) 840 { 841 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); 842 } 843 844 void security_task_to_inode(struct task_struct *p, struct inode *inode) 845 { 846 security_ops->task_to_inode(p, inode); 847 } 848 849 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) 850 { 851 return security_ops->ipc_permission(ipcp, flag); 852 } 853 854 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 855 { 856 security_ops->ipc_getsecid(ipcp, secid); 857 } 858 859 int security_msg_msg_alloc(struct msg_msg *msg) 860 { 861 return security_ops->msg_msg_alloc_security(msg); 862 } 863 864 void security_msg_msg_free(struct msg_msg *msg) 865 { 866 security_ops->msg_msg_free_security(msg); 867 } 868 869 int security_msg_queue_alloc(struct msg_queue *msq) 870 { 871 return security_ops->msg_queue_alloc_security(msq); 872 } 873 874 void security_msg_queue_free(struct msg_queue *msq) 875 { 876 security_ops->msg_queue_free_security(msq); 877 } 878 879 int security_msg_queue_associate(struct msg_queue *msq, int msqflg) 880 { 881 return security_ops->msg_queue_associate(msq, msqflg); 882 } 883 884 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 885 { 886 return security_ops->msg_queue_msgctl(msq, cmd); 887 } 888 889 int security_msg_queue_msgsnd(struct msg_queue *msq, 890 struct msg_msg *msg, int msqflg) 891 { 892 return security_ops->msg_queue_msgsnd(msq, msg, msqflg); 893 } 894 895 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 896 struct task_struct *target, long type, int mode) 897 { 898 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); 899 } 900 901 int security_shm_alloc(struct shmid_kernel *shp) 902 { 903 return security_ops->shm_alloc_security(shp); 904 } 905 906 void security_shm_free(struct shmid_kernel *shp) 907 { 908 security_ops->shm_free_security(shp); 909 } 910 911 int security_shm_associate(struct shmid_kernel *shp, int shmflg) 912 { 913 return security_ops->shm_associate(shp, shmflg); 914 } 915 916 int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 917 { 918 return security_ops->shm_shmctl(shp, cmd); 919 } 920 921 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) 922 { 923 return security_ops->shm_shmat(shp, shmaddr, shmflg); 924 } 925 926 int security_sem_alloc(struct sem_array *sma) 927 { 928 return security_ops->sem_alloc_security(sma); 929 } 930 931 void security_sem_free(struct sem_array *sma) 932 { 933 security_ops->sem_free_security(sma); 934 } 935 936 int security_sem_associate(struct sem_array *sma, int semflg) 937 { 938 return security_ops->sem_associate(sma, semflg); 939 } 940 941 int security_sem_semctl(struct sem_array *sma, int cmd) 942 { 943 return security_ops->sem_semctl(sma, cmd); 944 } 945 946 int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 947 unsigned nsops, int alter) 948 { 949 return security_ops->sem_semop(sma, sops, nsops, alter); 950 } 951 952 void security_d_instantiate(struct dentry *dentry, struct inode *inode) 953 { 954 if (unlikely(inode && IS_PRIVATE(inode))) 955 return; 956 security_ops->d_instantiate(dentry, inode); 957 } 958 EXPORT_SYMBOL(security_d_instantiate); 959 960 int security_getprocattr(struct task_struct *p, char *name, char **value) 961 { 962 return security_ops->getprocattr(p, name, value); 963 } 964 965 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) 966 { 967 return security_ops->setprocattr(p, name, value, size); 968 } 969 970 int security_netlink_send(struct sock *sk, struct sk_buff *skb) 971 { 972 return security_ops->netlink_send(sk, skb); 973 } 974 975 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 976 { 977 return security_ops->secid_to_secctx(secid, secdata, seclen); 978 } 979 EXPORT_SYMBOL(security_secid_to_secctx); 980 981 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) 982 { 983 return security_ops->secctx_to_secid(secdata, seclen, secid); 984 } 985 EXPORT_SYMBOL(security_secctx_to_secid); 986 987 void security_release_secctx(char *secdata, u32 seclen) 988 { 989 security_ops->release_secctx(secdata, seclen); 990 } 991 EXPORT_SYMBOL(security_release_secctx); 992 993 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 994 { 995 return security_ops->inode_notifysecctx(inode, ctx, ctxlen); 996 } 997 EXPORT_SYMBOL(security_inode_notifysecctx); 998 999 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1000 { 1001 return security_ops->inode_setsecctx(dentry, ctx, ctxlen); 1002 } 1003 EXPORT_SYMBOL(security_inode_setsecctx); 1004 1005 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1006 { 1007 return security_ops->inode_getsecctx(inode, ctx, ctxlen); 1008 } 1009 EXPORT_SYMBOL(security_inode_getsecctx); 1010 1011 #ifdef CONFIG_SECURITY_NETWORK 1012 1013 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) 1014 { 1015 return security_ops->unix_stream_connect(sock, other, newsk); 1016 } 1017 EXPORT_SYMBOL(security_unix_stream_connect); 1018 1019 int security_unix_may_send(struct socket *sock, struct socket *other) 1020 { 1021 return security_ops->unix_may_send(sock, other); 1022 } 1023 EXPORT_SYMBOL(security_unix_may_send); 1024 1025 int security_socket_create(int family, int type, int protocol, int kern) 1026 { 1027 return security_ops->socket_create(family, type, protocol, kern); 1028 } 1029 1030 int security_socket_post_create(struct socket *sock, int family, 1031 int type, int protocol, int kern) 1032 { 1033 return security_ops->socket_post_create(sock, family, type, 1034 protocol, kern); 1035 } 1036 1037 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) 1038 { 1039 return security_ops->socket_bind(sock, address, addrlen); 1040 } 1041 1042 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) 1043 { 1044 return security_ops->socket_connect(sock, address, addrlen); 1045 } 1046 1047 int security_socket_listen(struct socket *sock, int backlog) 1048 { 1049 return security_ops->socket_listen(sock, backlog); 1050 } 1051 1052 int security_socket_accept(struct socket *sock, struct socket *newsock) 1053 { 1054 return security_ops->socket_accept(sock, newsock); 1055 } 1056 1057 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) 1058 { 1059 return security_ops->socket_sendmsg(sock, msg, size); 1060 } 1061 1062 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1063 int size, int flags) 1064 { 1065 return security_ops->socket_recvmsg(sock, msg, size, flags); 1066 } 1067 1068 int security_socket_getsockname(struct socket *sock) 1069 { 1070 return security_ops->socket_getsockname(sock); 1071 } 1072 1073 int security_socket_getpeername(struct socket *sock) 1074 { 1075 return security_ops->socket_getpeername(sock); 1076 } 1077 1078 int security_socket_getsockopt(struct socket *sock, int level, int optname) 1079 { 1080 return security_ops->socket_getsockopt(sock, level, optname); 1081 } 1082 1083 int security_socket_setsockopt(struct socket *sock, int level, int optname) 1084 { 1085 return security_ops->socket_setsockopt(sock, level, optname); 1086 } 1087 1088 int security_socket_shutdown(struct socket *sock, int how) 1089 { 1090 return security_ops->socket_shutdown(sock, how); 1091 } 1092 1093 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) 1094 { 1095 return security_ops->socket_sock_rcv_skb(sk, skb); 1096 } 1097 EXPORT_SYMBOL(security_sock_rcv_skb); 1098 1099 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1100 int __user *optlen, unsigned len) 1101 { 1102 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); 1103 } 1104 1105 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1106 { 1107 return security_ops->socket_getpeersec_dgram(sock, skb, secid); 1108 } 1109 EXPORT_SYMBOL(security_socket_getpeersec_dgram); 1110 1111 int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1112 { 1113 return security_ops->sk_alloc_security(sk, family, priority); 1114 } 1115 1116 void security_sk_free(struct sock *sk) 1117 { 1118 security_ops->sk_free_security(sk); 1119 } 1120 1121 void security_sk_clone(const struct sock *sk, struct sock *newsk) 1122 { 1123 security_ops->sk_clone_security(sk, newsk); 1124 } 1125 EXPORT_SYMBOL(security_sk_clone); 1126 1127 void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 1128 { 1129 security_ops->sk_getsecid(sk, &fl->flowi_secid); 1130 } 1131 EXPORT_SYMBOL(security_sk_classify_flow); 1132 1133 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 1134 { 1135 security_ops->req_classify_flow(req, fl); 1136 } 1137 EXPORT_SYMBOL(security_req_classify_flow); 1138 1139 void security_sock_graft(struct sock *sk, struct socket *parent) 1140 { 1141 security_ops->sock_graft(sk, parent); 1142 } 1143 EXPORT_SYMBOL(security_sock_graft); 1144 1145 int security_inet_conn_request(struct sock *sk, 1146 struct sk_buff *skb, struct request_sock *req) 1147 { 1148 return security_ops->inet_conn_request(sk, skb, req); 1149 } 1150 EXPORT_SYMBOL(security_inet_conn_request); 1151 1152 void security_inet_csk_clone(struct sock *newsk, 1153 const struct request_sock *req) 1154 { 1155 security_ops->inet_csk_clone(newsk, req); 1156 } 1157 1158 void security_inet_conn_established(struct sock *sk, 1159 struct sk_buff *skb) 1160 { 1161 security_ops->inet_conn_established(sk, skb); 1162 } 1163 1164 int security_secmark_relabel_packet(u32 secid) 1165 { 1166 return security_ops->secmark_relabel_packet(secid); 1167 } 1168 EXPORT_SYMBOL(security_secmark_relabel_packet); 1169 1170 void security_secmark_refcount_inc(void) 1171 { 1172 security_ops->secmark_refcount_inc(); 1173 } 1174 EXPORT_SYMBOL(security_secmark_refcount_inc); 1175 1176 void security_secmark_refcount_dec(void) 1177 { 1178 security_ops->secmark_refcount_dec(); 1179 } 1180 EXPORT_SYMBOL(security_secmark_refcount_dec); 1181 1182 int security_tun_dev_create(void) 1183 { 1184 return security_ops->tun_dev_create(); 1185 } 1186 EXPORT_SYMBOL(security_tun_dev_create); 1187 1188 void security_tun_dev_post_create(struct sock *sk) 1189 { 1190 return security_ops->tun_dev_post_create(sk); 1191 } 1192 EXPORT_SYMBOL(security_tun_dev_post_create); 1193 1194 int security_tun_dev_attach(struct sock *sk) 1195 { 1196 return security_ops->tun_dev_attach(sk); 1197 } 1198 EXPORT_SYMBOL(security_tun_dev_attach); 1199 1200 #endif /* CONFIG_SECURITY_NETWORK */ 1201 1202 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1203 1204 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) 1205 { 1206 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); 1207 } 1208 EXPORT_SYMBOL(security_xfrm_policy_alloc); 1209 1210 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, 1211 struct xfrm_sec_ctx **new_ctxp) 1212 { 1213 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); 1214 } 1215 1216 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1217 { 1218 security_ops->xfrm_policy_free_security(ctx); 1219 } 1220 EXPORT_SYMBOL(security_xfrm_policy_free); 1221 1222 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1223 { 1224 return security_ops->xfrm_policy_delete_security(ctx); 1225 } 1226 1227 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) 1228 { 1229 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); 1230 } 1231 EXPORT_SYMBOL(security_xfrm_state_alloc); 1232 1233 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1234 struct xfrm_sec_ctx *polsec, u32 secid) 1235 { 1236 if (!polsec) 1237 return 0; 1238 /* 1239 * We want the context to be taken from secid which is usually 1240 * from the sock. 1241 */ 1242 return security_ops->xfrm_state_alloc_security(x, NULL, secid); 1243 } 1244 1245 int security_xfrm_state_delete(struct xfrm_state *x) 1246 { 1247 return security_ops->xfrm_state_delete_security(x); 1248 } 1249 EXPORT_SYMBOL(security_xfrm_state_delete); 1250 1251 void security_xfrm_state_free(struct xfrm_state *x) 1252 { 1253 security_ops->xfrm_state_free_security(x); 1254 } 1255 1256 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1257 { 1258 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); 1259 } 1260 1261 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1262 struct xfrm_policy *xp, 1263 const struct flowi *fl) 1264 { 1265 return security_ops->xfrm_state_pol_flow_match(x, xp, fl); 1266 } 1267 1268 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1269 { 1270 return security_ops->xfrm_decode_session(skb, secid, 1); 1271 } 1272 1273 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1274 { 1275 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0); 1276 1277 BUG_ON(rc); 1278 } 1279 EXPORT_SYMBOL(security_skb_classify_flow); 1280 1281 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1282 1283 #ifdef CONFIG_KEYS 1284 1285 int security_key_alloc(struct key *key, const struct cred *cred, 1286 unsigned long flags) 1287 { 1288 return security_ops->key_alloc(key, cred, flags); 1289 } 1290 1291 void security_key_free(struct key *key) 1292 { 1293 security_ops->key_free(key); 1294 } 1295 1296 int security_key_permission(key_ref_t key_ref, 1297 const struct cred *cred, key_perm_t perm) 1298 { 1299 return security_ops->key_permission(key_ref, cred, perm); 1300 } 1301 1302 int security_key_getsecurity(struct key *key, char **_buffer) 1303 { 1304 return security_ops->key_getsecurity(key, _buffer); 1305 } 1306 1307 #endif /* CONFIG_KEYS */ 1308 1309 #ifdef CONFIG_AUDIT 1310 1311 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) 1312 { 1313 return security_ops->audit_rule_init(field, op, rulestr, lsmrule); 1314 } 1315 1316 int security_audit_rule_known(struct audit_krule *krule) 1317 { 1318 return security_ops->audit_rule_known(krule); 1319 } 1320 1321 void security_audit_rule_free(void *lsmrule) 1322 { 1323 security_ops->audit_rule_free(lsmrule); 1324 } 1325 1326 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, 1327 struct audit_context *actx) 1328 { 1329 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx); 1330 } 1331 1332 #endif /* CONFIG_AUDIT */ 1333