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