security.c revision dd6f953adb5c4deb9cd7b6a5054e7d5eafe4ed71
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 */ 22extern struct security_operations dummy_security_ops; 23extern void security_fixup_ops(struct security_operations *ops); 24 25struct security_operations *security_ops; /* Initialized to NULL */ 26 27/* amount of vm to protect from userspace access */ 28unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR; 29 30static 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 39static 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 */ 54int __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", __func__); 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 */ 81int register_security(struct security_operations *ops) 82{ 83 if (verify(ops)) { 84 printk(KERN_DEBUG "%s could not verify " 85 "security_operations structure.\n", __func__); 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 */ 109int 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", __func__); 114 return -EINVAL; 115 } 116 117 if (ops == security_ops) { 118 printk(KERN_INFO "%s security operations " 119 "already registered.\n", __func__); 120 return -EINVAL; 121 } 122 123 return security_ops->register_security(name, ops); 124} 125 126/* Security operations */ 127 128int security_ptrace(struct task_struct *parent, struct task_struct *child) 129{ 130 return security_ops->ptrace(parent, child); 131} 132 133int 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 141int 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 149void 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 157int security_capable(struct task_struct *tsk, int cap) 158{ 159 return security_ops->capable(tsk, cap); 160} 161 162int security_acct(struct file *file) 163{ 164 return security_ops->acct(file); 165} 166 167int security_sysctl(struct ctl_table *table, int op) 168{ 169 return security_ops->sysctl(table, op); 170} 171 172int security_quotactl(int cmds, int type, int id, struct super_block *sb) 173{ 174 return security_ops->quotactl(cmds, type, id, sb); 175} 176 177int security_quota_on(struct dentry *dentry) 178{ 179 return security_ops->quota_on(dentry); 180} 181 182int security_syslog(int type) 183{ 184 return security_ops->syslog(type); 185} 186 187int security_settime(struct timespec *ts, struct timezone *tz) 188{ 189 return security_ops->settime(ts, tz); 190} 191 192int security_vm_enough_memory(long pages) 193{ 194 return security_ops->vm_enough_memory(current->mm, pages); 195} 196 197int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 198{ 199 return security_ops->vm_enough_memory(mm, pages); 200} 201 202int security_bprm_alloc(struct linux_binprm *bprm) 203{ 204 return security_ops->bprm_alloc_security(bprm); 205} 206 207void security_bprm_free(struct linux_binprm *bprm) 208{ 209 security_ops->bprm_free_security(bprm); 210} 211 212void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe) 213{ 214 security_ops->bprm_apply_creds(bprm, unsafe); 215} 216 217void security_bprm_post_apply_creds(struct linux_binprm *bprm) 218{ 219 security_ops->bprm_post_apply_creds(bprm); 220} 221 222int security_bprm_set(struct linux_binprm *bprm) 223{ 224 return security_ops->bprm_set_security(bprm); 225} 226 227int security_bprm_check(struct linux_binprm *bprm) 228{ 229 return security_ops->bprm_check_security(bprm); 230} 231 232int security_bprm_secureexec(struct linux_binprm *bprm) 233{ 234 return security_ops->bprm_secureexec(bprm); 235} 236 237int security_sb_alloc(struct super_block *sb) 238{ 239 return security_ops->sb_alloc_security(sb); 240} 241 242void security_sb_free(struct super_block *sb) 243{ 244 security_ops->sb_free_security(sb); 245} 246 247int security_sb_copy_data(char *orig, char *copy) 248{ 249 return security_ops->sb_copy_data(orig, copy); 250} 251EXPORT_SYMBOL(security_sb_copy_data); 252 253int security_sb_kern_mount(struct super_block *sb, void *data) 254{ 255 return security_ops->sb_kern_mount(sb, data); 256} 257 258int security_sb_statfs(struct dentry *dentry) 259{ 260 return security_ops->sb_statfs(dentry); 261} 262 263int 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 269int security_sb_check_sb(struct vfsmount *mnt, struct nameidata *nd) 270{ 271 return security_ops->sb_check_sb(mnt, nd); 272} 273 274int security_sb_umount(struct vfsmount *mnt, int flags) 275{ 276 return security_ops->sb_umount(mnt, flags); 277} 278 279void security_sb_umount_close(struct vfsmount *mnt) 280{ 281 security_ops->sb_umount_close(mnt); 282} 283 284void security_sb_umount_busy(struct vfsmount *mnt) 285{ 286 security_ops->sb_umount_busy(mnt); 287} 288 289void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data) 290{ 291 security_ops->sb_post_remount(mnt, flags, data); 292} 293 294void security_sb_post_addmount(struct vfsmount *mnt, struct nameidata *mountpoint_nd) 295{ 296 security_ops->sb_post_addmount(mnt, mountpoint_nd); 297} 298 299int security_sb_pivotroot(struct nameidata *old_nd, struct nameidata *new_nd) 300{ 301 return security_ops->sb_pivotroot(old_nd, new_nd); 302} 303 304void 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 309int 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 315int 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} 320EXPORT_SYMBOL(security_sb_set_mnt_opts); 321 322void 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} 327EXPORT_SYMBOL(security_sb_clone_mnt_opts); 328 329int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 330{ 331 return security_ops->sb_parse_opts_str(options, opts); 332} 333EXPORT_SYMBOL(security_sb_parse_opts_str); 334 335int security_inode_alloc(struct inode *inode) 336{ 337 inode->i_security = NULL; 338 return security_ops->inode_alloc_security(inode); 339} 340 341void security_inode_free(struct inode *inode) 342{ 343 security_ops->inode_free_security(inode); 344} 345 346int 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} 353EXPORT_SYMBOL(security_inode_init_security); 354 355int 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 362int 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 370int 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 377int 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 385int 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 392int 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 399int 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 406int 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 416int 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 423int 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 430int 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 437int 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 444int 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 451void security_inode_delete(struct inode *inode) 452{ 453 if (unlikely(IS_PRIVATE(inode))) 454 return; 455 security_ops->inode_delete(inode); 456} 457 458int 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 466void 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 474int 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 481int 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 488int 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 495int security_inode_need_killpriv(struct dentry *dentry) 496{ 497 return security_ops->inode_need_killpriv(dentry); 498} 499 500int security_inode_killpriv(struct dentry *dentry) 501{ 502 return security_ops->inode_killpriv(dentry); 503} 504 505int 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 512int 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 519int 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 526int security_file_permission(struct file *file, int mask) 527{ 528 return security_ops->file_permission(file, mask); 529} 530 531int security_file_alloc(struct file *file) 532{ 533 return security_ops->file_alloc_security(file); 534} 535 536void security_file_free(struct file *file) 537{ 538 security_ops->file_free_security(file); 539} 540 541int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 542{ 543 return security_ops->file_ioctl(file, cmd, arg); 544} 545 546int 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 553int 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 559int security_file_lock(struct file *file, unsigned int cmd) 560{ 561 return security_ops->file_lock(file, cmd); 562} 563 564int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 565{ 566 return security_ops->file_fcntl(file, cmd, arg); 567} 568 569int security_file_set_fowner(struct file *file) 570{ 571 return security_ops->file_set_fowner(file); 572} 573 574int 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 580int security_file_receive(struct file *file) 581{ 582 return security_ops->file_receive(file); 583} 584 585int security_dentry_open(struct file *file) 586{ 587 return security_ops->dentry_open(file); 588} 589 590int security_task_create(unsigned long clone_flags) 591{ 592 return security_ops->task_create(clone_flags); 593} 594 595int security_task_alloc(struct task_struct *p) 596{ 597 return security_ops->task_alloc_security(p); 598} 599 600void security_task_free(struct task_struct *p) 601{ 602 security_ops->task_free_security(p); 603} 604 605int 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 610int 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 616int 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 621int security_task_setpgid(struct task_struct *p, pid_t pgid) 622{ 623 return security_ops->task_setpgid(p, pgid); 624} 625 626int security_task_getpgid(struct task_struct *p) 627{ 628 return security_ops->task_getpgid(p); 629} 630 631int security_task_getsid(struct task_struct *p) 632{ 633 return security_ops->task_getsid(p); 634} 635 636void security_task_getsecid(struct task_struct *p, u32 *secid) 637{ 638 security_ops->task_getsecid(p, secid); 639} 640EXPORT_SYMBOL(security_task_getsecid); 641 642int security_task_setgroups(struct group_info *group_info) 643{ 644 return security_ops->task_setgroups(group_info); 645} 646 647int security_task_setnice(struct task_struct *p, int nice) 648{ 649 return security_ops->task_setnice(p, nice); 650} 651 652int security_task_setioprio(struct task_struct *p, int ioprio) 653{ 654 return security_ops->task_setioprio(p, ioprio); 655} 656 657int security_task_getioprio(struct task_struct *p) 658{ 659 return security_ops->task_getioprio(p); 660} 661 662int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) 663{ 664 return security_ops->task_setrlimit(resource, new_rlim); 665} 666 667int 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 673int security_task_getscheduler(struct task_struct *p) 674{ 675 return security_ops->task_getscheduler(p); 676} 677 678int security_task_movememory(struct task_struct *p) 679{ 680 return security_ops->task_movememory(p); 681} 682 683int 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 689int security_task_wait(struct task_struct *p) 690{ 691 return security_ops->task_wait(p); 692} 693 694int 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 700void security_task_reparent_to_init(struct task_struct *p) 701{ 702 security_ops->task_reparent_to_init(p); 703} 704 705void security_task_to_inode(struct task_struct *p, struct inode *inode) 706{ 707 security_ops->task_to_inode(p, inode); 708} 709 710int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) 711{ 712 return security_ops->ipc_permission(ipcp, flag); 713} 714 715int security_msg_msg_alloc(struct msg_msg *msg) 716{ 717 return security_ops->msg_msg_alloc_security(msg); 718} 719 720void security_msg_msg_free(struct msg_msg *msg) 721{ 722 security_ops->msg_msg_free_security(msg); 723} 724 725int security_msg_queue_alloc(struct msg_queue *msq) 726{ 727 return security_ops->msg_queue_alloc_security(msq); 728} 729 730void security_msg_queue_free(struct msg_queue *msq) 731{ 732 security_ops->msg_queue_free_security(msq); 733} 734 735int security_msg_queue_associate(struct msg_queue *msq, int msqflg) 736{ 737 return security_ops->msg_queue_associate(msq, msqflg); 738} 739 740int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 741{ 742 return security_ops->msg_queue_msgctl(msq, cmd); 743} 744 745int 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 751int 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 757int security_shm_alloc(struct shmid_kernel *shp) 758{ 759 return security_ops->shm_alloc_security(shp); 760} 761 762void security_shm_free(struct shmid_kernel *shp) 763{ 764 security_ops->shm_free_security(shp); 765} 766 767int security_shm_associate(struct shmid_kernel *shp, int shmflg) 768{ 769 return security_ops->shm_associate(shp, shmflg); 770} 771 772int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 773{ 774 return security_ops->shm_shmctl(shp, cmd); 775} 776 777int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) 778{ 779 return security_ops->shm_shmat(shp, shmaddr, shmflg); 780} 781 782int security_sem_alloc(struct sem_array *sma) 783{ 784 return security_ops->sem_alloc_security(sma); 785} 786 787void security_sem_free(struct sem_array *sma) 788{ 789 security_ops->sem_free_security(sma); 790} 791 792int security_sem_associate(struct sem_array *sma, int semflg) 793{ 794 return security_ops->sem_associate(sma, semflg); 795} 796 797int security_sem_semctl(struct sem_array *sma, int cmd) 798{ 799 return security_ops->sem_semctl(sma, cmd); 800} 801 802int 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 808void 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} 814EXPORT_SYMBOL(security_d_instantiate); 815 816int security_getprocattr(struct task_struct *p, char *name, char **value) 817{ 818 return security_ops->getprocattr(p, name, value); 819} 820 821int 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 826int security_netlink_send(struct sock *sk, struct sk_buff *skb) 827{ 828 return security_ops->netlink_send(sk, skb); 829} 830 831int security_netlink_recv(struct sk_buff *skb, int cap) 832{ 833 return security_ops->netlink_recv(skb, cap); 834} 835EXPORT_SYMBOL(security_netlink_recv); 836 837int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 838{ 839 return security_ops->secid_to_secctx(secid, secdata, seclen); 840} 841EXPORT_SYMBOL(security_secid_to_secctx); 842 843int security_secctx_to_secid(char *secdata, u32 seclen, u32 *secid) 844{ 845 return security_ops->secctx_to_secid(secdata, seclen, secid); 846} 847EXPORT_SYMBOL(security_secctx_to_secid); 848 849void security_release_secctx(char *secdata, u32 seclen) 850{ 851 return security_ops->release_secctx(secdata, seclen); 852} 853EXPORT_SYMBOL(security_release_secctx); 854 855#ifdef CONFIG_SECURITY_NETWORK 856 857int 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} 862EXPORT_SYMBOL(security_unix_stream_connect); 863 864int security_unix_may_send(struct socket *sock, struct socket *other) 865{ 866 return security_ops->unix_may_send(sock, other); 867} 868EXPORT_SYMBOL(security_unix_may_send); 869 870int security_socket_create(int family, int type, int protocol, int kern) 871{ 872 return security_ops->socket_create(family, type, protocol, kern); 873} 874 875int 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 882int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) 883{ 884 return security_ops->socket_bind(sock, address, addrlen); 885} 886 887int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) 888{ 889 return security_ops->socket_connect(sock, address, addrlen); 890} 891 892int security_socket_listen(struct socket *sock, int backlog) 893{ 894 return security_ops->socket_listen(sock, backlog); 895} 896 897int security_socket_accept(struct socket *sock, struct socket *newsock) 898{ 899 return security_ops->socket_accept(sock, newsock); 900} 901 902void security_socket_post_accept(struct socket *sock, struct socket *newsock) 903{ 904 security_ops->socket_post_accept(sock, newsock); 905} 906 907int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) 908{ 909 return security_ops->socket_sendmsg(sock, msg, size); 910} 911 912int 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 918int security_socket_getsockname(struct socket *sock) 919{ 920 return security_ops->socket_getsockname(sock); 921} 922 923int security_socket_getpeername(struct socket *sock) 924{ 925 return security_ops->socket_getpeername(sock); 926} 927 928int security_socket_getsockopt(struct socket *sock, int level, int optname) 929{ 930 return security_ops->socket_getsockopt(sock, level, optname); 931} 932 933int security_socket_setsockopt(struct socket *sock, int level, int optname) 934{ 935 return security_ops->socket_setsockopt(sock, level, optname); 936} 937 938int security_socket_shutdown(struct socket *sock, int how) 939{ 940 return security_ops->socket_shutdown(sock, how); 941} 942 943int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) 944{ 945 return security_ops->socket_sock_rcv_skb(sk, skb); 946} 947EXPORT_SYMBOL(security_sock_rcv_skb); 948 949int 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 955int 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} 959EXPORT_SYMBOL(security_socket_getpeersec_dgram); 960 961int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 962{ 963 return security_ops->sk_alloc_security(sk, family, priority); 964} 965 966void security_sk_free(struct sock *sk) 967{ 968 return security_ops->sk_free_security(sk); 969} 970 971void security_sk_clone(const struct sock *sk, struct sock *newsk) 972{ 973 return security_ops->sk_clone_security(sk, newsk); 974} 975 976void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 977{ 978 security_ops->sk_getsecid(sk, &fl->secid); 979} 980EXPORT_SYMBOL(security_sk_classify_flow); 981 982void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 983{ 984 security_ops->req_classify_flow(req, fl); 985} 986EXPORT_SYMBOL(security_req_classify_flow); 987 988void security_sock_graft(struct sock *sk, struct socket *parent) 989{ 990 security_ops->sock_graft(sk, parent); 991} 992EXPORT_SYMBOL(security_sock_graft); 993 994int 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} 999EXPORT_SYMBOL(security_inet_conn_request); 1000 1001void security_inet_csk_clone(struct sock *newsk, 1002 const struct request_sock *req) 1003{ 1004 security_ops->inet_csk_clone(newsk, req); 1005} 1006 1007void 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 1017int security_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx) 1018{ 1019 return security_ops->xfrm_policy_alloc_security(xp, sec_ctx); 1020} 1021EXPORT_SYMBOL(security_xfrm_policy_alloc); 1022 1023int security_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new) 1024{ 1025 return security_ops->xfrm_policy_clone_security(old, new); 1026} 1027 1028void security_xfrm_policy_free(struct xfrm_policy *xp) 1029{ 1030 security_ops->xfrm_policy_free_security(xp); 1031} 1032EXPORT_SYMBOL(security_xfrm_policy_free); 1033 1034int security_xfrm_policy_delete(struct xfrm_policy *xp) 1035{ 1036 return security_ops->xfrm_policy_delete_security(xp); 1037} 1038 1039int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) 1040{ 1041 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); 1042} 1043EXPORT_SYMBOL(security_xfrm_state_alloc); 1044 1045int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1046 struct xfrm_sec_ctx *polsec, u32 secid) 1047{ 1048 if (!polsec) 1049 return 0; 1050 /* 1051 * We want the context to be taken from secid which is usually 1052 * from the sock. 1053 */ 1054 return security_ops->xfrm_state_alloc_security(x, NULL, secid); 1055} 1056 1057int security_xfrm_state_delete(struct xfrm_state *x) 1058{ 1059 return security_ops->xfrm_state_delete_security(x); 1060} 1061EXPORT_SYMBOL(security_xfrm_state_delete); 1062 1063void security_xfrm_state_free(struct xfrm_state *x) 1064{ 1065 security_ops->xfrm_state_free_security(x); 1066} 1067 1068int security_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir) 1069{ 1070 return security_ops->xfrm_policy_lookup(xp, fl_secid, dir); 1071} 1072 1073int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1074 struct xfrm_policy *xp, struct flowi *fl) 1075{ 1076 return security_ops->xfrm_state_pol_flow_match(x, xp, fl); 1077} 1078 1079int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1080{ 1081 return security_ops->xfrm_decode_session(skb, secid, 1); 1082} 1083 1084void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1085{ 1086 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0); 1087 1088 BUG_ON(rc); 1089} 1090EXPORT_SYMBOL(security_skb_classify_flow); 1091 1092#endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1093 1094#ifdef CONFIG_KEYS 1095 1096int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags) 1097{ 1098 return security_ops->key_alloc(key, tsk, flags); 1099} 1100 1101void security_key_free(struct key *key) 1102{ 1103 security_ops->key_free(key); 1104} 1105 1106int security_key_permission(key_ref_t key_ref, 1107 struct task_struct *context, key_perm_t perm) 1108{ 1109 return security_ops->key_permission(key_ref, context, perm); 1110} 1111 1112#endif /* CONFIG_KEYS */ 1113