security.c revision 4916ca401e3051dad326ddd69765bd0e3f32fb9b
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 * Otherwise, return false. 94 */ 95int __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 */ 112int __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 130int security_ptrace_access_check(struct task_struct *child, unsigned int mode) 131{ 132 return security_ops->ptrace_access_check(child, mode); 133} 134 135int security_ptrace_traceme(struct task_struct *parent) 136{ 137 return security_ops->ptrace_traceme(parent); 138} 139 140int 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 148int 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 157int security_capable(int cap) 158{ 159 return security_ops->capable(current, current_cred(), cap, 160 SECURITY_CAP_AUDIT); 161} 162 163int security_real_capable(struct task_struct *tsk, int cap) 164{ 165 const struct cred *cred; 166 int ret; 167 168 cred = get_task_cred(tsk); 169 ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT); 170 put_cred(cred); 171 return ret; 172} 173 174int security_real_capable_noaudit(struct task_struct *tsk, int cap) 175{ 176 const struct cred *cred; 177 int ret; 178 179 cred = get_task_cred(tsk); 180 ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT); 181 put_cred(cred); 182 return ret; 183} 184 185int security_quotactl(int cmds, int type, int id, struct super_block *sb) 186{ 187 return security_ops->quotactl(cmds, type, id, sb); 188} 189 190int security_quota_on(struct dentry *dentry) 191{ 192 return security_ops->quota_on(dentry); 193} 194 195int security_syslog(int type) 196{ 197 return security_ops->syslog(type); 198} 199 200int security_settime(struct timespec *ts, struct timezone *tz) 201{ 202 return security_ops->settime(ts, tz); 203} 204 205int security_vm_enough_memory(long pages) 206{ 207 WARN_ON(current->mm == NULL); 208 return security_ops->vm_enough_memory(current->mm, pages); 209} 210 211int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 212{ 213 WARN_ON(mm == NULL); 214 return security_ops->vm_enough_memory(mm, pages); 215} 216 217int security_vm_enough_memory_kern(long pages) 218{ 219 /* If current->mm is a kernel thread then we will pass NULL, 220 for this specific case that is fine */ 221 return security_ops->vm_enough_memory(current->mm, pages); 222} 223 224int security_bprm_set_creds(struct linux_binprm *bprm) 225{ 226 return security_ops->bprm_set_creds(bprm); 227} 228 229int security_bprm_check(struct linux_binprm *bprm) 230{ 231 int ret; 232 233 ret = security_ops->bprm_check_security(bprm); 234 if (ret) 235 return ret; 236 return ima_bprm_check(bprm); 237} 238 239void security_bprm_committing_creds(struct linux_binprm *bprm) 240{ 241 security_ops->bprm_committing_creds(bprm); 242} 243 244void security_bprm_committed_creds(struct linux_binprm *bprm) 245{ 246 security_ops->bprm_committed_creds(bprm); 247} 248 249int security_bprm_secureexec(struct linux_binprm *bprm) 250{ 251 return security_ops->bprm_secureexec(bprm); 252} 253 254int security_sb_alloc(struct super_block *sb) 255{ 256 return security_ops->sb_alloc_security(sb); 257} 258 259void security_sb_free(struct super_block *sb) 260{ 261 security_ops->sb_free_security(sb); 262} 263 264int security_sb_copy_data(char *orig, char *copy) 265{ 266 return security_ops->sb_copy_data(orig, copy); 267} 268EXPORT_SYMBOL(security_sb_copy_data); 269 270int security_sb_kern_mount(struct super_block *sb, int flags, void *data) 271{ 272 return security_ops->sb_kern_mount(sb, flags, data); 273} 274 275int security_sb_show_options(struct seq_file *m, struct super_block *sb) 276{ 277 return security_ops->sb_show_options(m, sb); 278} 279 280int security_sb_statfs(struct dentry *dentry) 281{ 282 return security_ops->sb_statfs(dentry); 283} 284 285int security_sb_mount(char *dev_name, struct path *path, 286 char *type, unsigned long flags, void *data) 287{ 288 return security_ops->sb_mount(dev_name, path, type, flags, data); 289} 290 291int security_sb_umount(struct vfsmount *mnt, int flags) 292{ 293 return security_ops->sb_umount(mnt, flags); 294} 295 296int security_sb_pivotroot(struct path *old_path, struct path *new_path) 297{ 298 return security_ops->sb_pivotroot(old_path, new_path); 299} 300 301int security_sb_set_mnt_opts(struct super_block *sb, 302 struct security_mnt_opts *opts) 303{ 304 return security_ops->sb_set_mnt_opts(sb, opts); 305} 306EXPORT_SYMBOL(security_sb_set_mnt_opts); 307 308void security_sb_clone_mnt_opts(const struct super_block *oldsb, 309 struct super_block *newsb) 310{ 311 security_ops->sb_clone_mnt_opts(oldsb, newsb); 312} 313EXPORT_SYMBOL(security_sb_clone_mnt_opts); 314 315int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 316{ 317 return security_ops->sb_parse_opts_str(options, opts); 318} 319EXPORT_SYMBOL(security_sb_parse_opts_str); 320 321int security_inode_alloc(struct inode *inode) 322{ 323 inode->i_security = NULL; 324 return security_ops->inode_alloc_security(inode); 325} 326 327void security_inode_free(struct inode *inode) 328{ 329 ima_inode_free(inode); 330 security_ops->inode_free_security(inode); 331} 332 333int security_inode_init_security(struct inode *inode, struct inode *dir, 334 const struct qstr *qstr, char **name, 335 void **value, size_t *len) 336{ 337 if (unlikely(IS_PRIVATE(inode))) 338 return -EOPNOTSUPP; 339 return security_ops->inode_init_security(inode, dir, qstr, name, value, 340 len); 341} 342EXPORT_SYMBOL(security_inode_init_security); 343 344#ifdef CONFIG_SECURITY_PATH 345int security_path_mknod(struct path *dir, struct dentry *dentry, int mode, 346 unsigned int dev) 347{ 348 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 349 return 0; 350 return security_ops->path_mknod(dir, dentry, mode, dev); 351} 352EXPORT_SYMBOL(security_path_mknod); 353 354int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode) 355{ 356 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 357 return 0; 358 return security_ops->path_mkdir(dir, dentry, mode); 359} 360EXPORT_SYMBOL(security_path_mkdir); 361 362int security_path_rmdir(struct path *dir, struct dentry *dentry) 363{ 364 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 365 return 0; 366 return security_ops->path_rmdir(dir, dentry); 367} 368 369int security_path_unlink(struct path *dir, struct dentry *dentry) 370{ 371 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 372 return 0; 373 return security_ops->path_unlink(dir, dentry); 374} 375EXPORT_SYMBOL(security_path_unlink); 376 377int security_path_symlink(struct path *dir, struct dentry *dentry, 378 const char *old_name) 379{ 380 if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) 381 return 0; 382 return security_ops->path_symlink(dir, dentry, old_name); 383} 384 385int security_path_link(struct dentry *old_dentry, struct path *new_dir, 386 struct dentry *new_dentry) 387{ 388 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 389 return 0; 390 return security_ops->path_link(old_dentry, new_dir, new_dentry); 391} 392 393int security_path_rename(struct path *old_dir, struct dentry *old_dentry, 394 struct path *new_dir, struct dentry *new_dentry) 395{ 396 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 397 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 398 return 0; 399 return security_ops->path_rename(old_dir, old_dentry, new_dir, 400 new_dentry); 401} 402EXPORT_SYMBOL(security_path_rename); 403 404int security_path_truncate(struct path *path) 405{ 406 if (unlikely(IS_PRIVATE(path->dentry->d_inode))) 407 return 0; 408 return security_ops->path_truncate(path); 409} 410 411int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt, 412 mode_t mode) 413{ 414 if (unlikely(IS_PRIVATE(dentry->d_inode))) 415 return 0; 416 return security_ops->path_chmod(dentry, mnt, mode); 417} 418 419int security_path_chown(struct path *path, uid_t uid, gid_t gid) 420{ 421 if (unlikely(IS_PRIVATE(path->dentry->d_inode))) 422 return 0; 423 return security_ops->path_chown(path, uid, gid); 424} 425 426int security_path_chroot(struct path *path) 427{ 428 return security_ops->path_chroot(path); 429} 430#endif 431 432int security_inode_create(struct inode *dir, struct dentry *dentry, int mode) 433{ 434 if (unlikely(IS_PRIVATE(dir))) 435 return 0; 436 return security_ops->inode_create(dir, dentry, mode); 437} 438EXPORT_SYMBOL_GPL(security_inode_create); 439 440int security_inode_link(struct dentry *old_dentry, struct inode *dir, 441 struct dentry *new_dentry) 442{ 443 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 444 return 0; 445 return security_ops->inode_link(old_dentry, dir, new_dentry); 446} 447 448int security_inode_unlink(struct inode *dir, struct dentry *dentry) 449{ 450 if (unlikely(IS_PRIVATE(dentry->d_inode))) 451 return 0; 452 return security_ops->inode_unlink(dir, dentry); 453} 454 455int security_inode_symlink(struct inode *dir, struct dentry *dentry, 456 const char *old_name) 457{ 458 if (unlikely(IS_PRIVATE(dir))) 459 return 0; 460 return security_ops->inode_symlink(dir, dentry, old_name); 461} 462 463int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) 464{ 465 if (unlikely(IS_PRIVATE(dir))) 466 return 0; 467 return security_ops->inode_mkdir(dir, dentry, mode); 468} 469EXPORT_SYMBOL_GPL(security_inode_mkdir); 470 471int security_inode_rmdir(struct inode *dir, struct dentry *dentry) 472{ 473 if (unlikely(IS_PRIVATE(dentry->d_inode))) 474 return 0; 475 return security_ops->inode_rmdir(dir, dentry); 476} 477 478int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) 479{ 480 if (unlikely(IS_PRIVATE(dir))) 481 return 0; 482 return security_ops->inode_mknod(dir, dentry, mode, dev); 483} 484 485int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 486 struct inode *new_dir, struct dentry *new_dentry) 487{ 488 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 489 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 490 return 0; 491 return security_ops->inode_rename(old_dir, old_dentry, 492 new_dir, new_dentry); 493} 494 495int security_inode_readlink(struct dentry *dentry) 496{ 497 if (unlikely(IS_PRIVATE(dentry->d_inode))) 498 return 0; 499 return security_ops->inode_readlink(dentry); 500} 501 502int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) 503{ 504 if (unlikely(IS_PRIVATE(dentry->d_inode))) 505 return 0; 506 return security_ops->inode_follow_link(dentry, nd); 507} 508 509int security_inode_permission(struct inode *inode, int mask) 510{ 511 if (unlikely(IS_PRIVATE(inode))) 512 return 0; 513 return security_ops->inode_permission(inode, mask); 514} 515 516int security_inode_exec_permission(struct inode *inode, unsigned int flags) 517{ 518 if (unlikely(IS_PRIVATE(inode))) 519 return 0; 520 if (flags) 521 return -ECHILD; 522 return security_ops->inode_permission(inode, MAY_EXEC); 523} 524 525int security_inode_setattr(struct dentry *dentry, struct iattr *attr) 526{ 527 if (unlikely(IS_PRIVATE(dentry->d_inode))) 528 return 0; 529 return security_ops->inode_setattr(dentry, attr); 530} 531EXPORT_SYMBOL_GPL(security_inode_setattr); 532 533int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) 534{ 535 if (unlikely(IS_PRIVATE(dentry->d_inode))) 536 return 0; 537 return security_ops->inode_getattr(mnt, dentry); 538} 539 540int security_inode_setxattr(struct dentry *dentry, const char *name, 541 const void *value, size_t size, int flags) 542{ 543 if (unlikely(IS_PRIVATE(dentry->d_inode))) 544 return 0; 545 return security_ops->inode_setxattr(dentry, name, value, size, flags); 546} 547 548void security_inode_post_setxattr(struct dentry *dentry, const char *name, 549 const void *value, size_t size, int flags) 550{ 551 if (unlikely(IS_PRIVATE(dentry->d_inode))) 552 return; 553 security_ops->inode_post_setxattr(dentry, name, value, size, flags); 554} 555 556int security_inode_getxattr(struct dentry *dentry, const char *name) 557{ 558 if (unlikely(IS_PRIVATE(dentry->d_inode))) 559 return 0; 560 return security_ops->inode_getxattr(dentry, name); 561} 562 563int security_inode_listxattr(struct dentry *dentry) 564{ 565 if (unlikely(IS_PRIVATE(dentry->d_inode))) 566 return 0; 567 return security_ops->inode_listxattr(dentry); 568} 569 570int security_inode_removexattr(struct dentry *dentry, const char *name) 571{ 572 if (unlikely(IS_PRIVATE(dentry->d_inode))) 573 return 0; 574 return security_ops->inode_removexattr(dentry, name); 575} 576 577int security_inode_need_killpriv(struct dentry *dentry) 578{ 579 return security_ops->inode_need_killpriv(dentry); 580} 581 582int security_inode_killpriv(struct dentry *dentry) 583{ 584 return security_ops->inode_killpriv(dentry); 585} 586 587int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) 588{ 589 if (unlikely(IS_PRIVATE(inode))) 590 return -EOPNOTSUPP; 591 return security_ops->inode_getsecurity(inode, name, buffer, alloc); 592} 593 594int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 595{ 596 if (unlikely(IS_PRIVATE(inode))) 597 return -EOPNOTSUPP; 598 return security_ops->inode_setsecurity(inode, name, value, size, flags); 599} 600 601int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 602{ 603 if (unlikely(IS_PRIVATE(inode))) 604 return 0; 605 return security_ops->inode_listsecurity(inode, buffer, buffer_size); 606} 607 608void security_inode_getsecid(const struct inode *inode, u32 *secid) 609{ 610 security_ops->inode_getsecid(inode, secid); 611} 612 613int security_file_permission(struct file *file, int mask) 614{ 615 int ret; 616 617 ret = security_ops->file_permission(file, mask); 618 if (ret) 619 return ret; 620 621 return fsnotify_perm(file, mask); 622} 623 624int security_file_alloc(struct file *file) 625{ 626 return security_ops->file_alloc_security(file); 627} 628 629void security_file_free(struct file *file) 630{ 631 security_ops->file_free_security(file); 632} 633 634int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 635{ 636 return security_ops->file_ioctl(file, cmd, arg); 637} 638 639int security_file_mmap(struct file *file, unsigned long reqprot, 640 unsigned long prot, unsigned long flags, 641 unsigned long addr, unsigned long addr_only) 642{ 643 int ret; 644 645 ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only); 646 if (ret) 647 return ret; 648 return ima_file_mmap(file, prot); 649} 650 651int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 652 unsigned long prot) 653{ 654 return security_ops->file_mprotect(vma, reqprot, prot); 655} 656 657int security_file_lock(struct file *file, unsigned int cmd) 658{ 659 return security_ops->file_lock(file, cmd); 660} 661 662int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 663{ 664 return security_ops->file_fcntl(file, cmd, arg); 665} 666 667int security_file_set_fowner(struct file *file) 668{ 669 return security_ops->file_set_fowner(file); 670} 671 672int security_file_send_sigiotask(struct task_struct *tsk, 673 struct fown_struct *fown, int sig) 674{ 675 return security_ops->file_send_sigiotask(tsk, fown, sig); 676} 677 678int security_file_receive(struct file *file) 679{ 680 return security_ops->file_receive(file); 681} 682 683int security_dentry_open(struct file *file, const struct cred *cred) 684{ 685 int ret; 686 687 ret = security_ops->dentry_open(file, cred); 688 if (ret) 689 return ret; 690 691 return fsnotify_perm(file, MAY_OPEN); 692} 693 694int security_task_create(unsigned long clone_flags) 695{ 696 return security_ops->task_create(clone_flags); 697} 698 699int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 700{ 701 return security_ops->cred_alloc_blank(cred, gfp); 702} 703 704void security_cred_free(struct cred *cred) 705{ 706 security_ops->cred_free(cred); 707} 708 709int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) 710{ 711 return security_ops->cred_prepare(new, old, gfp); 712} 713 714void security_transfer_creds(struct cred *new, const struct cred *old) 715{ 716 security_ops->cred_transfer(new, old); 717} 718 719int security_kernel_act_as(struct cred *new, u32 secid) 720{ 721 return security_ops->kernel_act_as(new, secid); 722} 723 724int security_kernel_create_files_as(struct cred *new, struct inode *inode) 725{ 726 return security_ops->kernel_create_files_as(new, inode); 727} 728 729int security_kernel_module_request(char *kmod_name) 730{ 731 return security_ops->kernel_module_request(kmod_name); 732} 733 734int security_task_fix_setuid(struct cred *new, const struct cred *old, 735 int flags) 736{ 737 return security_ops->task_fix_setuid(new, old, flags); 738} 739 740int security_task_setpgid(struct task_struct *p, pid_t pgid) 741{ 742 return security_ops->task_setpgid(p, pgid); 743} 744 745int security_task_getpgid(struct task_struct *p) 746{ 747 return security_ops->task_getpgid(p); 748} 749 750int security_task_getsid(struct task_struct *p) 751{ 752 return security_ops->task_getsid(p); 753} 754 755void security_task_getsecid(struct task_struct *p, u32 *secid) 756{ 757 security_ops->task_getsecid(p, secid); 758} 759EXPORT_SYMBOL(security_task_getsecid); 760 761int security_task_setnice(struct task_struct *p, int nice) 762{ 763 return security_ops->task_setnice(p, nice); 764} 765 766int security_task_setioprio(struct task_struct *p, int ioprio) 767{ 768 return security_ops->task_setioprio(p, ioprio); 769} 770 771int security_task_getioprio(struct task_struct *p) 772{ 773 return security_ops->task_getioprio(p); 774} 775 776int security_task_setrlimit(struct task_struct *p, unsigned int resource, 777 struct rlimit *new_rlim) 778{ 779 return security_ops->task_setrlimit(p, resource, new_rlim); 780} 781 782int security_task_setscheduler(struct task_struct *p) 783{ 784 return security_ops->task_setscheduler(p); 785} 786 787int security_task_getscheduler(struct task_struct *p) 788{ 789 return security_ops->task_getscheduler(p); 790} 791 792int security_task_movememory(struct task_struct *p) 793{ 794 return security_ops->task_movememory(p); 795} 796 797int security_task_kill(struct task_struct *p, struct siginfo *info, 798 int sig, u32 secid) 799{ 800 return security_ops->task_kill(p, info, sig, secid); 801} 802 803int security_task_wait(struct task_struct *p) 804{ 805 return security_ops->task_wait(p); 806} 807 808int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 809 unsigned long arg4, unsigned long arg5) 810{ 811 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); 812} 813 814void security_task_to_inode(struct task_struct *p, struct inode *inode) 815{ 816 security_ops->task_to_inode(p, inode); 817} 818 819int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) 820{ 821 return security_ops->ipc_permission(ipcp, flag); 822} 823 824void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 825{ 826 security_ops->ipc_getsecid(ipcp, secid); 827} 828 829int security_msg_msg_alloc(struct msg_msg *msg) 830{ 831 return security_ops->msg_msg_alloc_security(msg); 832} 833 834void security_msg_msg_free(struct msg_msg *msg) 835{ 836 security_ops->msg_msg_free_security(msg); 837} 838 839int security_msg_queue_alloc(struct msg_queue *msq) 840{ 841 return security_ops->msg_queue_alloc_security(msq); 842} 843 844void security_msg_queue_free(struct msg_queue *msq) 845{ 846 security_ops->msg_queue_free_security(msq); 847} 848 849int security_msg_queue_associate(struct msg_queue *msq, int msqflg) 850{ 851 return security_ops->msg_queue_associate(msq, msqflg); 852} 853 854int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 855{ 856 return security_ops->msg_queue_msgctl(msq, cmd); 857} 858 859int security_msg_queue_msgsnd(struct msg_queue *msq, 860 struct msg_msg *msg, int msqflg) 861{ 862 return security_ops->msg_queue_msgsnd(msq, msg, msqflg); 863} 864 865int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 866 struct task_struct *target, long type, int mode) 867{ 868 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); 869} 870 871int security_shm_alloc(struct shmid_kernel *shp) 872{ 873 return security_ops->shm_alloc_security(shp); 874} 875 876void security_shm_free(struct shmid_kernel *shp) 877{ 878 security_ops->shm_free_security(shp); 879} 880 881int security_shm_associate(struct shmid_kernel *shp, int shmflg) 882{ 883 return security_ops->shm_associate(shp, shmflg); 884} 885 886int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 887{ 888 return security_ops->shm_shmctl(shp, cmd); 889} 890 891int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) 892{ 893 return security_ops->shm_shmat(shp, shmaddr, shmflg); 894} 895 896int security_sem_alloc(struct sem_array *sma) 897{ 898 return security_ops->sem_alloc_security(sma); 899} 900 901void security_sem_free(struct sem_array *sma) 902{ 903 security_ops->sem_free_security(sma); 904} 905 906int security_sem_associate(struct sem_array *sma, int semflg) 907{ 908 return security_ops->sem_associate(sma, semflg); 909} 910 911int security_sem_semctl(struct sem_array *sma, int cmd) 912{ 913 return security_ops->sem_semctl(sma, cmd); 914} 915 916int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 917 unsigned nsops, int alter) 918{ 919 return security_ops->sem_semop(sma, sops, nsops, alter); 920} 921 922void security_d_instantiate(struct dentry *dentry, struct inode *inode) 923{ 924 if (unlikely(inode && IS_PRIVATE(inode))) 925 return; 926 security_ops->d_instantiate(dentry, inode); 927} 928EXPORT_SYMBOL(security_d_instantiate); 929 930int security_getprocattr(struct task_struct *p, char *name, char **value) 931{ 932 return security_ops->getprocattr(p, name, value); 933} 934 935int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) 936{ 937 return security_ops->setprocattr(p, name, value, size); 938} 939 940int security_netlink_send(struct sock *sk, struct sk_buff *skb) 941{ 942 return security_ops->netlink_send(sk, skb); 943} 944 945int security_netlink_recv(struct sk_buff *skb, int cap) 946{ 947 return security_ops->netlink_recv(skb, cap); 948} 949EXPORT_SYMBOL(security_netlink_recv); 950 951int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 952{ 953 return security_ops->secid_to_secctx(secid, secdata, seclen); 954} 955EXPORT_SYMBOL(security_secid_to_secctx); 956 957int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) 958{ 959 return security_ops->secctx_to_secid(secdata, seclen, secid); 960} 961EXPORT_SYMBOL(security_secctx_to_secid); 962 963void security_release_secctx(char *secdata, u32 seclen) 964{ 965 security_ops->release_secctx(secdata, seclen); 966} 967EXPORT_SYMBOL(security_release_secctx); 968 969int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 970{ 971 return security_ops->inode_notifysecctx(inode, ctx, ctxlen); 972} 973EXPORT_SYMBOL(security_inode_notifysecctx); 974 975int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 976{ 977 return security_ops->inode_setsecctx(dentry, ctx, ctxlen); 978} 979EXPORT_SYMBOL(security_inode_setsecctx); 980 981int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 982{ 983 return security_ops->inode_getsecctx(inode, ctx, ctxlen); 984} 985EXPORT_SYMBOL(security_inode_getsecctx); 986 987#ifdef CONFIG_SECURITY_NETWORK 988 989int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) 990{ 991 return security_ops->unix_stream_connect(sock, other, newsk); 992} 993EXPORT_SYMBOL(security_unix_stream_connect); 994 995int security_unix_may_send(struct socket *sock, struct socket *other) 996{ 997 return security_ops->unix_may_send(sock, other); 998} 999EXPORT_SYMBOL(security_unix_may_send); 1000 1001int security_socket_create(int family, int type, int protocol, int kern) 1002{ 1003 return security_ops->socket_create(family, type, protocol, kern); 1004} 1005 1006int security_socket_post_create(struct socket *sock, int family, 1007 int type, int protocol, int kern) 1008{ 1009 return security_ops->socket_post_create(sock, family, type, 1010 protocol, kern); 1011} 1012 1013int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) 1014{ 1015 return security_ops->socket_bind(sock, address, addrlen); 1016} 1017 1018int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) 1019{ 1020 return security_ops->socket_connect(sock, address, addrlen); 1021} 1022 1023int security_socket_listen(struct socket *sock, int backlog) 1024{ 1025 return security_ops->socket_listen(sock, backlog); 1026} 1027 1028int security_socket_accept(struct socket *sock, struct socket *newsock) 1029{ 1030 return security_ops->socket_accept(sock, newsock); 1031} 1032 1033int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) 1034{ 1035 return security_ops->socket_sendmsg(sock, msg, size); 1036} 1037 1038int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1039 int size, int flags) 1040{ 1041 return security_ops->socket_recvmsg(sock, msg, size, flags); 1042} 1043 1044int security_socket_getsockname(struct socket *sock) 1045{ 1046 return security_ops->socket_getsockname(sock); 1047} 1048 1049int security_socket_getpeername(struct socket *sock) 1050{ 1051 return security_ops->socket_getpeername(sock); 1052} 1053 1054int security_socket_getsockopt(struct socket *sock, int level, int optname) 1055{ 1056 return security_ops->socket_getsockopt(sock, level, optname); 1057} 1058 1059int security_socket_setsockopt(struct socket *sock, int level, int optname) 1060{ 1061 return security_ops->socket_setsockopt(sock, level, optname); 1062} 1063 1064int security_socket_shutdown(struct socket *sock, int how) 1065{ 1066 return security_ops->socket_shutdown(sock, how); 1067} 1068 1069int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) 1070{ 1071 return security_ops->socket_sock_rcv_skb(sk, skb); 1072} 1073EXPORT_SYMBOL(security_sock_rcv_skb); 1074 1075int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1076 int __user *optlen, unsigned len) 1077{ 1078 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); 1079} 1080 1081int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1082{ 1083 return security_ops->socket_getpeersec_dgram(sock, skb, secid); 1084} 1085EXPORT_SYMBOL(security_socket_getpeersec_dgram); 1086 1087int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1088{ 1089 return security_ops->sk_alloc_security(sk, family, priority); 1090} 1091 1092void security_sk_free(struct sock *sk) 1093{ 1094 security_ops->sk_free_security(sk); 1095} 1096 1097void security_sk_clone(const struct sock *sk, struct sock *newsk) 1098{ 1099 security_ops->sk_clone_security(sk, newsk); 1100} 1101 1102void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 1103{ 1104 security_ops->sk_getsecid(sk, &fl->secid); 1105} 1106EXPORT_SYMBOL(security_sk_classify_flow); 1107 1108void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 1109{ 1110 security_ops->req_classify_flow(req, fl); 1111} 1112EXPORT_SYMBOL(security_req_classify_flow); 1113 1114void security_sock_graft(struct sock *sk, struct socket *parent) 1115{ 1116 security_ops->sock_graft(sk, parent); 1117} 1118EXPORT_SYMBOL(security_sock_graft); 1119 1120int security_inet_conn_request(struct sock *sk, 1121 struct sk_buff *skb, struct request_sock *req) 1122{ 1123 return security_ops->inet_conn_request(sk, skb, req); 1124} 1125EXPORT_SYMBOL(security_inet_conn_request); 1126 1127void security_inet_csk_clone(struct sock *newsk, 1128 const struct request_sock *req) 1129{ 1130 security_ops->inet_csk_clone(newsk, req); 1131} 1132 1133void security_inet_conn_established(struct sock *sk, 1134 struct sk_buff *skb) 1135{ 1136 security_ops->inet_conn_established(sk, skb); 1137} 1138 1139int security_secmark_relabel_packet(u32 secid) 1140{ 1141 return security_ops->secmark_relabel_packet(secid); 1142} 1143EXPORT_SYMBOL(security_secmark_relabel_packet); 1144 1145void security_secmark_refcount_inc(void) 1146{ 1147 security_ops->secmark_refcount_inc(); 1148} 1149EXPORT_SYMBOL(security_secmark_refcount_inc); 1150 1151void security_secmark_refcount_dec(void) 1152{ 1153 security_ops->secmark_refcount_dec(); 1154} 1155EXPORT_SYMBOL(security_secmark_refcount_dec); 1156 1157int security_tun_dev_create(void) 1158{ 1159 return security_ops->tun_dev_create(); 1160} 1161EXPORT_SYMBOL(security_tun_dev_create); 1162 1163void security_tun_dev_post_create(struct sock *sk) 1164{ 1165 return security_ops->tun_dev_post_create(sk); 1166} 1167EXPORT_SYMBOL(security_tun_dev_post_create); 1168 1169int security_tun_dev_attach(struct sock *sk) 1170{ 1171 return security_ops->tun_dev_attach(sk); 1172} 1173EXPORT_SYMBOL(security_tun_dev_attach); 1174 1175#endif /* CONFIG_SECURITY_NETWORK */ 1176 1177#ifdef CONFIG_SECURITY_NETWORK_XFRM 1178 1179int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) 1180{ 1181 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); 1182} 1183EXPORT_SYMBOL(security_xfrm_policy_alloc); 1184 1185int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, 1186 struct xfrm_sec_ctx **new_ctxp) 1187{ 1188 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); 1189} 1190 1191void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1192{ 1193 security_ops->xfrm_policy_free_security(ctx); 1194} 1195EXPORT_SYMBOL(security_xfrm_policy_free); 1196 1197int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1198{ 1199 return security_ops->xfrm_policy_delete_security(ctx); 1200} 1201 1202int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) 1203{ 1204 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); 1205} 1206EXPORT_SYMBOL(security_xfrm_state_alloc); 1207 1208int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1209 struct xfrm_sec_ctx *polsec, u32 secid) 1210{ 1211 if (!polsec) 1212 return 0; 1213 /* 1214 * We want the context to be taken from secid which is usually 1215 * from the sock. 1216 */ 1217 return security_ops->xfrm_state_alloc_security(x, NULL, secid); 1218} 1219 1220int security_xfrm_state_delete(struct xfrm_state *x) 1221{ 1222 return security_ops->xfrm_state_delete_security(x); 1223} 1224EXPORT_SYMBOL(security_xfrm_state_delete); 1225 1226void security_xfrm_state_free(struct xfrm_state *x) 1227{ 1228 security_ops->xfrm_state_free_security(x); 1229} 1230 1231int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1232{ 1233 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); 1234} 1235 1236int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1237 struct xfrm_policy *xp, struct flowi *fl) 1238{ 1239 return security_ops->xfrm_state_pol_flow_match(x, xp, fl); 1240} 1241 1242int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1243{ 1244 return security_ops->xfrm_decode_session(skb, secid, 1); 1245} 1246 1247void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1248{ 1249 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0); 1250 1251 BUG_ON(rc); 1252} 1253EXPORT_SYMBOL(security_skb_classify_flow); 1254 1255#endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1256 1257#ifdef CONFIG_KEYS 1258 1259int 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 1265void security_key_free(struct key *key) 1266{ 1267 security_ops->key_free(key); 1268} 1269 1270int 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 1276int 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 1285int 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 1290int security_audit_rule_known(struct audit_krule *krule) 1291{ 1292 return security_ops->audit_rule_known(krule); 1293} 1294 1295void security_audit_rule_free(void *lsmrule) 1296{ 1297 security_ops->audit_rule_free(lsmrule); 1298} 1299 1300int 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