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