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 20 21 /* things that live in dummy.c */ 22 extern struct security_operations dummy_security_ops; 23 extern void security_fixup_ops(struct security_operations *ops); 24 25 struct security_operations *security_ops; /* Initialized to NULL */ 26 27 /* amount of vm to protect from userspace access */ 28 unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR; 29 30 static inline int verify(struct security_operations *ops) 31 { 32 /* verify the security_operations structure exists */ 33 if (!ops) 34 return -EINVAL; 35 security_fixup_ops(ops); 36 return 0; 37 } 38 39 static void __init do_security_initcalls(void) 40 { 41 initcall_t *call; 42 call = __security_initcall_start; 43 while (call < __security_initcall_end) { 44 (*call) (); 45 call++; 46 } 47 } 48 49 /** 50 * security_init - initializes the security framework 51 * 52 * This should be called early in the kernel initialization sequence. 53 */ 54 int __init security_init(void) 55 { 56 printk(KERN_INFO "Security Framework initialized\n"); 57 58 if (verify(&dummy_security_ops)) { 59 printk(KERN_ERR "%s could not verify " 60 "dummy_security_ops structure.\n", __FUNCTION__); 61 return -EIO; 62 } 63 64 security_ops = &dummy_security_ops; 65 do_security_initcalls(); 66 67 return 0; 68 } 69 70 /** 71 * register_security - registers a security framework with the kernel 72 * @ops: a pointer to the struct security_options that is to be registered 73 * 74 * This function is to allow a security module to register itself with the 75 * kernel security subsystem. Some rudimentary checking is done on the @ops 76 * value passed to this function. 77 * 78 * If there is already a security module registered with the kernel, 79 * an error will be returned. Otherwise 0 is returned on success. 80 */ 81 int register_security(struct security_operations *ops) 82 { 83 if (verify(ops)) { 84 printk(KERN_DEBUG "%s could not verify " 85 "security_operations structure.\n", __FUNCTION__); 86 return -EINVAL; 87 } 88 89 if (security_ops != &dummy_security_ops) 90 return -EAGAIN; 91 92 security_ops = ops; 93 94 return 0; 95 } 96 97 /** 98 * mod_reg_security - allows security modules to be "stacked" 99 * @name: a pointer to a string with the name of the security_options to be registered 100 * @ops: a pointer to the struct security_options that is to be registered 101 * 102 * This function allows security modules to be stacked if the currently loaded 103 * security module allows this to happen. It passes the @name and @ops to the 104 * register_security function of the currently loaded security module. 105 * 106 * The return value depends on the currently loaded security module, with 0 as 107 * success. 108 */ 109 int mod_reg_security(const char *name, struct security_operations *ops) 110 { 111 if (verify(ops)) { 112 printk(KERN_INFO "%s could not verify " 113 "security operations.\n", __FUNCTION__); 114 return -EINVAL; 115 } 116 117 if (ops == security_ops) { 118 printk(KERN_INFO "%s security operations " 119 "already registered.\n", __FUNCTION__); 120 return -EINVAL; 121 } 122 123 return security_ops->register_security(name, ops); 124 } 125 126 /* Security operations */ 127 128 int security_ptrace(struct task_struct *parent, struct task_struct *child) 129 { 130 return security_ops->ptrace(parent, child); 131 } 132 133 int security_capget(struct task_struct *target, 134 kernel_cap_t *effective, 135 kernel_cap_t *inheritable, 136 kernel_cap_t *permitted) 137 { 138 return security_ops->capget(target, effective, inheritable, permitted); 139 } 140 141 int security_capset_check(struct task_struct *target, 142 kernel_cap_t *effective, 143 kernel_cap_t *inheritable, 144 kernel_cap_t *permitted) 145 { 146 return security_ops->capset_check(target, effective, inheritable, permitted); 147 } 148 149 void security_capset_set(struct task_struct *target, 150 kernel_cap_t *effective, 151 kernel_cap_t *inheritable, 152 kernel_cap_t *permitted) 153 { 154 security_ops->capset_set(target, effective, inheritable, permitted); 155 } 156 157 int security_capable(struct task_struct *tsk, int cap) 158 { 159 return security_ops->capable(tsk, cap); 160 } 161 162 int security_acct(struct file *file) 163 { 164 return security_ops->acct(file); 165 } 166 167 int security_sysctl(struct ctl_table *table, int op) 168 { 169 return security_ops->sysctl(table, op); 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(struct timespec *ts, struct timezone *tz) 188 { 189 return security_ops->settime(ts, tz); 190 } 191 192 int security_vm_enough_memory(long pages) 193 { 194 return security_ops->vm_enough_memory(current->mm, pages); 195 } 196 197 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 198 { 199 return security_ops->vm_enough_memory(mm, pages); 200 } 201 202 int security_bprm_alloc(struct linux_binprm *bprm) 203 { 204 return security_ops->bprm_alloc_security(bprm); 205 } 206 207 void security_bprm_free(struct linux_binprm *bprm) 208 { 209 security_ops->bprm_free_security(bprm); 210 } 211 212 void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe) 213 { 214 security_ops->bprm_apply_creds(bprm, unsafe); 215 } 216 217 void security_bprm_post_apply_creds(struct linux_binprm *bprm) 218 { 219 security_ops->bprm_post_apply_creds(bprm); 220 } 221 222 int security_bprm_set(struct linux_binprm *bprm) 223 { 224 return security_ops->bprm_set_security(bprm); 225 } 226 227 int security_bprm_check(struct linux_binprm *bprm) 228 { 229 return security_ops->bprm_check_security(bprm); 230 } 231 232 int security_bprm_secureexec(struct linux_binprm *bprm) 233 { 234 return security_ops->bprm_secureexec(bprm); 235 } 236 237 int security_sb_alloc(struct super_block *sb) 238 { 239 return security_ops->sb_alloc_security(sb); 240 } 241 242 void security_sb_free(struct super_block *sb) 243 { 244 security_ops->sb_free_security(sb); 245 } 246 247 int security_sb_copy_data(char *orig, char *copy) 248 { 249 return security_ops->sb_copy_data(orig, copy); 250 } 251 EXPORT_SYMBOL(security_sb_copy_data); 252 253 int security_sb_kern_mount(struct super_block *sb, void *data) 254 { 255 return security_ops->sb_kern_mount(sb, data); 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 nameidata *nd, 264 char *type, unsigned long flags, void *data) 265 { 266 return security_ops->sb_mount(dev_name, nd, type, flags, data); 267 } 268 269 int security_sb_check_sb(struct vfsmount *mnt, struct nameidata *nd) 270 { 271 return security_ops->sb_check_sb(mnt, nd); 272 } 273 274 int security_sb_umount(struct vfsmount *mnt, int flags) 275 { 276 return security_ops->sb_umount(mnt, flags); 277 } 278 279 void security_sb_umount_close(struct vfsmount *mnt) 280 { 281 security_ops->sb_umount_close(mnt); 282 } 283 284 void security_sb_umount_busy(struct vfsmount *mnt) 285 { 286 security_ops->sb_umount_busy(mnt); 287 } 288 289 void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data) 290 { 291 security_ops->sb_post_remount(mnt, flags, data); 292 } 293 294 void security_sb_post_addmount(struct vfsmount *mnt, struct nameidata *mountpoint_nd) 295 { 296 security_ops->sb_post_addmount(mnt, mountpoint_nd); 297 } 298 299 int security_sb_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd) 300 { 301 return security_ops->sb_pivotroot(old_nd, new_nd); 302 } 303 304 void security_sb_post_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd) 305 { 306 security_ops->sb_post_pivotroot(old_nd, new_nd); 307 } 308 309 int security_sb_get_mnt_opts(const struct super_block *sb, 310 struct security_mnt_opts *opts) 311 { 312 return security_ops->sb_get_mnt_opts(sb, opts); 313 } 314 315 int security_sb_set_mnt_opts(struct super_block *sb, 316 struct security_mnt_opts *opts) 317 { 318 return security_ops->sb_set_mnt_opts(sb, opts); 319 } 320 EXPORT_SYMBOL(security_sb_set_mnt_opts); 321 322 void security_sb_clone_mnt_opts(const struct super_block *oldsb, 323 struct super_block *newsb) 324 { 325 security_ops->sb_clone_mnt_opts(oldsb, newsb); 326 } 327 EXPORT_SYMBOL(security_sb_clone_mnt_opts); 328 329 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 330 { 331 return security_ops->sb_parse_opts_str(options, opts); 332 } 333 EXPORT_SYMBOL(security_sb_parse_opts_str); 334 335 int security_inode_alloc(struct inode *inode) 336 { 337 inode->i_security = NULL; 338 return security_ops->inode_alloc_security(inode); 339 } 340 341 void security_inode_free(struct inode *inode) 342 { 343 security_ops->inode_free_security(inode); 344 } 345 346 int security_inode_init_security(struct inode *inode, struct inode *dir, 347 char **name, void **value, size_t *len) 348 { 349 if (unlikely(IS_PRIVATE(inode))) 350 return -EOPNOTSUPP; 351 return security_ops->inode_init_security(inode, dir, name, value, len); 352 } 353 EXPORT_SYMBOL(security_inode_init_security); 354 355 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode) 356 { 357 if (unlikely(IS_PRIVATE(dir))) 358 return 0; 359 return security_ops->inode_create(dir, dentry, mode); 360 } 361 362 int security_inode_link(struct dentry *old_dentry, struct inode *dir, 363 struct dentry *new_dentry) 364 { 365 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 366 return 0; 367 return security_ops->inode_link(old_dentry, dir, new_dentry); 368 } 369 370 int security_inode_unlink(struct inode *dir, struct dentry *dentry) 371 { 372 if (unlikely(IS_PRIVATE(dentry->d_inode))) 373 return 0; 374 return security_ops->inode_unlink(dir, dentry); 375 } 376 377 int security_inode_symlink(struct inode *dir, struct dentry *dentry, 378 const char *old_name) 379 { 380 if (unlikely(IS_PRIVATE(dir))) 381 return 0; 382 return security_ops->inode_symlink(dir, dentry, old_name); 383 } 384 385 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) 386 { 387 if (unlikely(IS_PRIVATE(dir))) 388 return 0; 389 return security_ops->inode_mkdir(dir, dentry, mode); 390 } 391 392 int security_inode_rmdir(struct inode *dir, struct dentry *dentry) 393 { 394 if (unlikely(IS_PRIVATE(dentry->d_inode))) 395 return 0; 396 return security_ops->inode_rmdir(dir, dentry); 397 } 398 399 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) 400 { 401 if (unlikely(IS_PRIVATE(dir))) 402 return 0; 403 return security_ops->inode_mknod(dir, dentry, mode, dev); 404 } 405 406 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 407 struct inode *new_dir, struct dentry *new_dentry) 408 { 409 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 410 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 411 return 0; 412 return security_ops->inode_rename(old_dir, old_dentry, 413 new_dir, new_dentry); 414 } 415 416 int security_inode_readlink(struct dentry *dentry) 417 { 418 if (unlikely(IS_PRIVATE(dentry->d_inode))) 419 return 0; 420 return security_ops->inode_readlink(dentry); 421 } 422 423 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) 424 { 425 if (unlikely(IS_PRIVATE(dentry->d_inode))) 426 return 0; 427 return security_ops->inode_follow_link(dentry, nd); 428 } 429 430 int security_inode_permission(struct inode *inode, int mask, struct nameidata *nd) 431 { 432 if (unlikely(IS_PRIVATE(inode))) 433 return 0; 434 return security_ops->inode_permission(inode, mask, nd); 435 } 436 437 int security_inode_setattr(struct dentry *dentry, struct iattr *attr) 438 { 439 if (unlikely(IS_PRIVATE(dentry->d_inode))) 440 return 0; 441 return security_ops->inode_setattr(dentry, attr); 442 } 443 444 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) 445 { 446 if (unlikely(IS_PRIVATE(dentry->d_inode))) 447 return 0; 448 return security_ops->inode_getattr(mnt, dentry); 449 } 450 451 void security_inode_delete(struct inode *inode) 452 { 453 if (unlikely(IS_PRIVATE(inode))) 454 return; 455 security_ops->inode_delete(inode); 456 } 457 458 int security_inode_setxattr(struct dentry *dentry, char *name, 459 void *value, size_t size, int flags) 460 { 461 if (unlikely(IS_PRIVATE(dentry->d_inode))) 462 return 0; 463 return security_ops->inode_setxattr(dentry, name, value, size, flags); 464 } 465 466 void security_inode_post_setxattr(struct dentry *dentry, char *name, 467 void *value, size_t size, int flags) 468 { 469 if (unlikely(IS_PRIVATE(dentry->d_inode))) 470 return; 471 security_ops->inode_post_setxattr(dentry, name, value, size, flags); 472 } 473 474 int security_inode_getxattr(struct dentry *dentry, char *name) 475 { 476 if (unlikely(IS_PRIVATE(dentry->d_inode))) 477 return 0; 478 return security_ops->inode_getxattr(dentry, name); 479 } 480 481 int security_inode_listxattr(struct dentry *dentry) 482 { 483 if (unlikely(IS_PRIVATE(dentry->d_inode))) 484 return 0; 485 return security_ops->inode_listxattr(dentry); 486 } 487 488 int security_inode_removexattr(struct dentry *dentry, char *name) 489 { 490 if (unlikely(IS_PRIVATE(dentry->d_inode))) 491 return 0; 492 return security_ops->inode_removexattr(dentry, name); 493 } 494 495 int security_inode_need_killpriv(struct dentry *dentry) 496 { 497 return security_ops->inode_need_killpriv(dentry); 498 } 499 500 int security_inode_killpriv(struct dentry *dentry) 501 { 502 return security_ops->inode_killpriv(dentry); 503 } 504 505 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) 506 { 507 if (unlikely(IS_PRIVATE(inode))) 508 return 0; 509 return security_ops->inode_getsecurity(inode, name, buffer, alloc); 510 } 511 512 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 513 { 514 if (unlikely(IS_PRIVATE(inode))) 515 return 0; 516 return security_ops->inode_setsecurity(inode, name, value, size, flags); 517 } 518 519 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 520 { 521 if (unlikely(IS_PRIVATE(inode))) 522 return 0; 523 return security_ops->inode_listsecurity(inode, buffer, buffer_size); 524 } 525 526 int security_file_permission(struct file *file, int mask) 527 { 528 return security_ops->file_permission(file, mask); 529 } 530 531 int security_file_alloc(struct file *file) 532 { 533 return security_ops->file_alloc_security(file); 534 } 535 536 void security_file_free(struct file *file) 537 { 538 security_ops->file_free_security(file); 539 } 540 541 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 542 { 543 return security_ops->file_ioctl(file, cmd, arg); 544 } 545 546 int security_file_mmap(struct file *file, unsigned long reqprot, 547 unsigned long prot, unsigned long flags, 548 unsigned long addr, unsigned long addr_only) 549 { 550 return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only); 551 } 552 553 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 554 unsigned long prot) 555 { 556 return security_ops->file_mprotect(vma, reqprot, prot); 557 } 558 559 int security_file_lock(struct file *file, unsigned int cmd) 560 { 561 return security_ops->file_lock(file, cmd); 562 } 563 564 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 565 { 566 return security_ops->file_fcntl(file, cmd, arg); 567 } 568 569 int security_file_set_fowner(struct file *file) 570 { 571 return security_ops->file_set_fowner(file); 572 } 573 574 int security_file_send_sigiotask(struct task_struct *tsk, 575 struct fown_struct *fown, int sig) 576 { 577 return security_ops->file_send_sigiotask(tsk, fown, sig); 578 } 579 580 int security_file_receive(struct file *file) 581 { 582 return security_ops->file_receive(file); 583 } 584 585 int security_dentry_open(struct file *file) 586 { 587 return security_ops->dentry_open(file); 588 } 589 590 int security_task_create(unsigned long clone_flags) 591 { 592 return security_ops->task_create(clone_flags); 593 } 594 595 int security_task_alloc(struct task_struct *p) 596 { 597 return security_ops->task_alloc_security(p); 598 } 599 600 void security_task_free(struct task_struct *p) 601 { 602 security_ops->task_free_security(p); 603 } 604 605 int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) 606 { 607 return security_ops->task_setuid(id0, id1, id2, flags); 608 } 609 610 int security_task_post_setuid(uid_t old_ruid, uid_t old_euid, 611 uid_t old_suid, int flags) 612 { 613 return security_ops->task_post_setuid(old_ruid, old_euid, old_suid, flags); 614 } 615 616 int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) 617 { 618 return security_ops->task_setgid(id0, id1, id2, flags); 619 } 620 621 int security_task_setpgid(struct task_struct *p, pid_t pgid) 622 { 623 return security_ops->task_setpgid(p, pgid); 624 } 625 626 int security_task_getpgid(struct task_struct *p) 627 { 628 return security_ops->task_getpgid(p); 629 } 630 631 int security_task_getsid(struct task_struct *p) 632 { 633 return security_ops->task_getsid(p); 634 } 635 636 void security_task_getsecid(struct task_struct *p, u32 *secid) 637 { 638 security_ops->task_getsecid(p, secid); 639 } 640 EXPORT_SYMBOL(security_task_getsecid); 641 642 int security_task_setgroups(struct group_info *group_info) 643 { 644 return security_ops->task_setgroups(group_info); 645 } 646 647 int security_task_setnice(struct task_struct *p, int nice) 648 { 649 return security_ops->task_setnice(p, nice); 650 } 651 652 int security_task_setioprio(struct task_struct *p, int ioprio) 653 { 654 return security_ops->task_setioprio(p, ioprio); 655 } 656 657 int security_task_getioprio(struct task_struct *p) 658 { 659 return security_ops->task_getioprio(p); 660 } 661 662 int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) 663 { 664 return security_ops->task_setrlimit(resource, new_rlim); 665 } 666 667 int security_task_setscheduler(struct task_struct *p, 668 int policy, struct sched_param *lp) 669 { 670 return security_ops->task_setscheduler(p, policy, lp); 671 } 672 673 int security_task_getscheduler(struct task_struct *p) 674 { 675 return security_ops->task_getscheduler(p); 676 } 677 678 int security_task_movememory(struct task_struct *p) 679 { 680 return security_ops->task_movememory(p); 681 } 682 683 int security_task_kill(struct task_struct *p, struct siginfo *info, 684 int sig, u32 secid) 685 { 686 return security_ops->task_kill(p, info, sig, secid); 687 } 688 689 int security_task_wait(struct task_struct *p) 690 { 691 return security_ops->task_wait(p); 692 } 693 694 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 695 unsigned long arg4, unsigned long arg5) 696 { 697 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); 698 } 699 700 void security_task_reparent_to_init(struct task_struct *p) 701 { 702 security_ops->task_reparent_to_init(p); 703 } 704 705 void security_task_to_inode(struct task_struct *p, struct inode *inode) 706 { 707 security_ops->task_to_inode(p, inode); 708 } 709 710 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) 711 { 712 return security_ops->ipc_permission(ipcp, flag); 713 } 714 715 int security_msg_msg_alloc(struct msg_msg *msg) 716 { 717 return security_ops->msg_msg_alloc_security(msg); 718 } 719 720 void security_msg_msg_free(struct msg_msg *msg) 721 { 722 security_ops->msg_msg_free_security(msg); 723 } 724 725 int security_msg_queue_alloc(struct msg_queue *msq) 726 { 727 return security_ops->msg_queue_alloc_security(msq); 728 } 729 730 void security_msg_queue_free(struct msg_queue *msq) 731 { 732 security_ops->msg_queue_free_security(msq); 733 } 734 735 int security_msg_queue_associate(struct msg_queue *msq, int msqflg) 736 { 737 return security_ops->msg_queue_associate(msq, msqflg); 738 } 739 740 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 741 { 742 return security_ops->msg_queue_msgctl(msq, cmd); 743 } 744 745 int security_msg_queue_msgsnd(struct msg_queue *msq, 746 struct msg_msg *msg, int msqflg) 747 { 748 return security_ops->msg_queue_msgsnd(msq, msg, msqflg); 749 } 750 751 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 752 struct task_struct *target, long type, int mode) 753 { 754 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); 755 } 756 757 int security_shm_alloc(struct shmid_kernel *shp) 758 { 759 return security_ops->shm_alloc_security(shp); 760 } 761 762 void security_shm_free(struct shmid_kernel *shp) 763 { 764 security_ops->shm_free_security(shp); 765 } 766 767 int security_shm_associate(struct shmid_kernel *shp, int shmflg) 768 { 769 return security_ops->shm_associate(shp, shmflg); 770 } 771 772 int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 773 { 774 return security_ops->shm_shmctl(shp, cmd); 775 } 776 777 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) 778 { 779 return security_ops->shm_shmat(shp, shmaddr, shmflg); 780 } 781 782 int security_sem_alloc(struct sem_array *sma) 783 { 784 return security_ops->sem_alloc_security(sma); 785 } 786 787 void security_sem_free(struct sem_array *sma) 788 { 789 security_ops->sem_free_security(sma); 790 } 791 792 int security_sem_associate(struct sem_array *sma, int semflg) 793 { 794 return security_ops->sem_associate(sma, semflg); 795 } 796 797 int security_sem_semctl(struct sem_array *sma, int cmd) 798 { 799 return security_ops->sem_semctl(sma, cmd); 800 } 801 802 int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 803 unsigned nsops, int alter) 804 { 805 return security_ops->sem_semop(sma, sops, nsops, alter); 806 } 807 808 void security_d_instantiate(struct dentry *dentry, struct inode *inode) 809 { 810 if (unlikely(inode && IS_PRIVATE(inode))) 811 return; 812 security_ops->d_instantiate(dentry, inode); 813 } 814 EXPORT_SYMBOL(security_d_instantiate); 815 816 int security_getprocattr(struct task_struct *p, char *name, char **value) 817 { 818 return security_ops->getprocattr(p, name, value); 819 } 820 821 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) 822 { 823 return security_ops->setprocattr(p, name, value, size); 824 } 825 826 int security_netlink_send(struct sock *sk, struct sk_buff *skb) 827 { 828 return security_ops->netlink_send(sk, skb); 829 } 830 831 int security_netlink_recv(struct sk_buff *skb, int cap) 832 { 833 return security_ops->netlink_recv(skb, cap); 834 } 835 EXPORT_SYMBOL(security_netlink_recv); 836 837 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 838 { 839 return security_ops->secid_to_secctx(secid, secdata, seclen); 840 } 841 EXPORT_SYMBOL(security_secid_to_secctx); 842 843 int security_secctx_to_secid(char *secdata, u32 seclen, u32 *secid) 844 { 845 return security_ops->secctx_to_secid(secdata, seclen, secid); 846 } 847 EXPORT_SYMBOL(security_secctx_to_secid); 848 849 void security_release_secctx(char *secdata, u32 seclen) 850 { 851 return security_ops->release_secctx(secdata, seclen); 852 } 853 EXPORT_SYMBOL(security_release_secctx); 854 855 #ifdef CONFIG_SECURITY_NETWORK 856 857 int security_unix_stream_connect(struct socket *sock, struct socket *other, 858 struct sock *newsk) 859 { 860 return security_ops->unix_stream_connect(sock, other, newsk); 861 } 862 EXPORT_SYMBOL(security_unix_stream_connect); 863 864 int security_unix_may_send(struct socket *sock, struct socket *other) 865 { 866 return security_ops->unix_may_send(sock, other); 867 } 868 EXPORT_SYMBOL(security_unix_may_send); 869 870 int security_socket_create(int family, int type, int protocol, int kern) 871 { 872 return security_ops->socket_create(family, type, protocol, kern); 873 } 874 875 int security_socket_post_create(struct socket *sock, int family, 876 int type, int protocol, int kern) 877 { 878 return security_ops->socket_post_create(sock, family, type, 879 protocol, kern); 880 } 881 882 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) 883 { 884 return security_ops->socket_bind(sock, address, addrlen); 885 } 886 887 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) 888 { 889 return security_ops->socket_connect(sock, address, addrlen); 890 } 891 892 int security_socket_listen(struct socket *sock, int backlog) 893 { 894 return security_ops->socket_listen(sock, backlog); 895 } 896 897 int security_socket_accept(struct socket *sock, struct socket *newsock) 898 { 899 return security_ops->socket_accept(sock, newsock); 900 } 901 902 void security_socket_post_accept(struct socket *sock, struct socket *newsock) 903 { 904 security_ops->socket_post_accept(sock, newsock); 905 } 906 907 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) 908 { 909 return security_ops->socket_sendmsg(sock, msg, size); 910 } 911 912 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 913 int size, int flags) 914 { 915 return security_ops->socket_recvmsg(sock, msg, size, flags); 916 } 917 918 int security_socket_getsockname(struct socket *sock) 919 { 920 return security_ops->socket_getsockname(sock); 921 } 922 923 int security_socket_getpeername(struct socket *sock) 924 { 925 return security_ops->socket_getpeername(sock); 926 } 927 928 int security_socket_getsockopt(struct socket *sock, int level, int optname) 929 { 930 return security_ops->socket_getsockopt(sock, level, optname); 931 } 932 933 int security_socket_setsockopt(struct socket *sock, int level, int optname) 934 { 935 return security_ops->socket_setsockopt(sock, level, optname); 936 } 937 938 int security_socket_shutdown(struct socket *sock, int how) 939 { 940 return security_ops->socket_shutdown(sock, how); 941 } 942 943 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) 944 { 945 return security_ops->socket_sock_rcv_skb(sk, skb); 946 } 947 EXPORT_SYMBOL(security_sock_rcv_skb); 948 949 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 950 int __user *optlen, unsigned len) 951 { 952 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); 953 } 954 955 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 956 { 957 return security_ops->socket_getpeersec_dgram(sock, skb, secid); 958 } 959 EXPORT_SYMBOL(security_socket_getpeersec_dgram); 960 961 int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 962 { 963 return security_ops->sk_alloc_security(sk, family, priority); 964 } 965 966 void security_sk_free(struct sock *sk) 967 { 968 return security_ops->sk_free_security(sk); 969 } 970 971 void security_sk_clone(const struct sock *sk, struct sock *newsk) 972 { 973 return security_ops->sk_clone_security(sk, newsk); 974 } 975 976 void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 977 { 978 security_ops->sk_getsecid(sk, &fl->secid); 979 } 980 EXPORT_SYMBOL(security_sk_classify_flow); 981 982 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 983 { 984 security_ops->req_classify_flow(req, fl); 985 } 986 EXPORT_SYMBOL(security_req_classify_flow); 987 988 void security_sock_graft(struct sock *sk, struct socket *parent) 989 { 990 security_ops->sock_graft(sk, parent); 991 } 992 EXPORT_SYMBOL(security_sock_graft); 993 994 int security_inet_conn_request(struct sock *sk, 995 struct sk_buff *skb, struct request_sock *req) 996 { 997 return security_ops->inet_conn_request(sk, skb, req); 998 } 999 EXPORT_SYMBOL(security_inet_conn_request); 1000 1001 void security_inet_csk_clone(struct sock *newsk, 1002 const struct request_sock *req) 1003 { 1004 security_ops->inet_csk_clone(newsk, req); 1005 } 1006 1007 void security_inet_conn_established(struct sock *sk, 1008 struct sk_buff *skb) 1009 { 1010 security_ops->inet_conn_established(sk, skb); 1011 } 1012 1013 #endif /* CONFIG_SECURITY_NETWORK */ 1014 1015 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1016 1017 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) 1018 { 1019 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); 1020 } 1021 EXPORT_SYMBOL(security_xfrm_policy_alloc); 1022 1023 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, 1024 struct xfrm_sec_ctx **new_ctxp) 1025 { 1026 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); 1027 } 1028 1029 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1030 { 1031 security_ops->xfrm_policy_free_security(ctx); 1032 } 1033 EXPORT_SYMBOL(security_xfrm_policy_free); 1034 1035 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1036 { 1037 return security_ops->xfrm_policy_delete_security(ctx); 1038 } 1039 1040 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) 1041 { 1042 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); 1043 } 1044 EXPORT_SYMBOL(security_xfrm_state_alloc); 1045 1046 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1047 struct xfrm_sec_ctx *polsec, u32 secid) 1048 { 1049 if (!polsec) 1050 return 0; 1051 /* 1052 * We want the context to be taken from secid which is usually 1053 * from the sock. 1054 */ 1055 return security_ops->xfrm_state_alloc_security(x, NULL, secid); 1056 } 1057 1058 int security_xfrm_state_delete(struct xfrm_state *x) 1059 { 1060 return security_ops->xfrm_state_delete_security(x); 1061 } 1062 EXPORT_SYMBOL(security_xfrm_state_delete); 1063 1064 void security_xfrm_state_free(struct xfrm_state *x) 1065 { 1066 security_ops->xfrm_state_free_security(x); 1067 } 1068 1069 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1070 { 1071 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); 1072 } 1073 1074 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1075 struct xfrm_policy *xp, struct flowi *fl) 1076 { 1077 return security_ops->xfrm_state_pol_flow_match(x, xp, fl); 1078 } 1079 1080 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1081 { 1082 return security_ops->xfrm_decode_session(skb, secid, 1); 1083 } 1084 1085 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1086 { 1087 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0); 1088 1089 BUG_ON(rc); 1090 } 1091 EXPORT_SYMBOL(security_skb_classify_flow); 1092 1093 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1094 1095 #ifdef CONFIG_KEYS 1096 1097 int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags) 1098 { 1099 return security_ops->key_alloc(key, tsk, flags); 1100 } 1101 1102 void security_key_free(struct key *key) 1103 { 1104 security_ops->key_free(key); 1105 } 1106 1107 int security_key_permission(key_ref_t key_ref, 1108 struct task_struct *context, key_perm_t perm) 1109 { 1110 return security_ops->key_permission(key_ref, context, perm); 1111 } 1112 1113 #endif /* CONFIG_KEYS */ 1114