security.c revision 745ca2475a6ac596e3d8d37c2759c0fbe2586227
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/* Boot-time LSM user choice */ 21static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1]; 22 23/* things that live in capability.c */ 24extern struct security_operations default_security_ops; 25extern void security_fixup_ops(struct security_operations *ops); 26 27struct security_operations *security_ops; /* Initialized to NULL */ 28 29/* amount of vm to protect from userspace access */ 30unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR; 31 32static inline int verify(struct security_operations *ops) 33{ 34 /* verify the security_operations structure exists */ 35 if (!ops) 36 return -EINVAL; 37 security_fixup_ops(ops); 38 return 0; 39} 40 41static void __init do_security_initcalls(void) 42{ 43 initcall_t *call; 44 call = __security_initcall_start; 45 while (call < __security_initcall_end) { 46 (*call) (); 47 call++; 48 } 49} 50 51/** 52 * security_init - initializes the security framework 53 * 54 * This should be called early in the kernel initialization sequence. 55 */ 56int __init security_init(void) 57{ 58 printk(KERN_INFO "Security Framework initialized\n"); 59 60 security_fixup_ops(&default_security_ops); 61 security_ops = &default_security_ops; 62 do_security_initcalls(); 63 64 return 0; 65} 66 67/* Save user chosen LSM */ 68static int __init choose_lsm(char *str) 69{ 70 strncpy(chosen_lsm, str, SECURITY_NAME_MAX); 71 return 1; 72} 73__setup("security=", choose_lsm); 74 75/** 76 * security_module_enable - Load given security module on boot ? 77 * @ops: a pointer to the struct security_operations that is to be checked. 78 * 79 * Each LSM must pass this method before registering its own operations 80 * to avoid security registration races. This method may also be used 81 * to check if your LSM is currently loaded during kernel initialization. 82 * 83 * Return true if: 84 * -The passed LSM is the one chosen by user at boot time, 85 * -or user didn't specify a specific LSM and we're the first to ask 86 * for registration permission, 87 * -or the passed LSM is currently loaded. 88 * Otherwise, return false. 89 */ 90int __init security_module_enable(struct security_operations *ops) 91{ 92 if (!*chosen_lsm) 93 strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX); 94 else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX)) 95 return 0; 96 97 return 1; 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 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_may_access(struct task_struct *child, unsigned int mode) 131{ 132 return security_ops->ptrace_may_access(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_check(const kernel_cap_t *effective, 149 const kernel_cap_t *inheritable, 150 const kernel_cap_t *permitted) 151{ 152 return security_ops->capset_check(effective, inheritable, permitted); 153} 154 155void security_capset_set(const kernel_cap_t *effective, 156 const kernel_cap_t *inheritable, 157 const kernel_cap_t *permitted) 158{ 159 security_ops->capset_set(effective, inheritable, permitted); 160} 161 162int security_capable(struct task_struct *tsk, int cap) 163{ 164 return security_ops->capable(tsk, cap, SECURITY_CAP_AUDIT); 165} 166 167int security_capable_noaudit(struct task_struct *tsk, int cap) 168{ 169 return security_ops->capable(tsk, cap, SECURITY_CAP_NOAUDIT); 170} 171 172int security_acct(struct file *file) 173{ 174 return security_ops->acct(file); 175} 176 177int security_sysctl(struct ctl_table *table, int op) 178{ 179 return security_ops->sysctl(table, op); 180} 181 182int security_quotactl(int cmds, int type, int id, struct super_block *sb) 183{ 184 return security_ops->quotactl(cmds, type, id, sb); 185} 186 187int security_quota_on(struct dentry *dentry) 188{ 189 return security_ops->quota_on(dentry); 190} 191 192int security_syslog(int type) 193{ 194 return security_ops->syslog(type); 195} 196 197int security_settime(struct timespec *ts, struct timezone *tz) 198{ 199 return security_ops->settime(ts, tz); 200} 201 202int security_vm_enough_memory(long pages) 203{ 204 WARN_ON(current->mm == NULL); 205 return security_ops->vm_enough_memory(current->mm, pages); 206} 207 208int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 209{ 210 WARN_ON(mm == NULL); 211 return security_ops->vm_enough_memory(mm, pages); 212} 213 214int security_vm_enough_memory_kern(long pages) 215{ 216 /* If current->mm is a kernel thread then we will pass NULL, 217 for this specific case that is fine */ 218 return security_ops->vm_enough_memory(current->mm, pages); 219} 220 221int security_bprm_alloc(struct linux_binprm *bprm) 222{ 223 return security_ops->bprm_alloc_security(bprm); 224} 225 226void security_bprm_free(struct linux_binprm *bprm) 227{ 228 security_ops->bprm_free_security(bprm); 229} 230 231void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe) 232{ 233 security_ops->bprm_apply_creds(bprm, unsafe); 234} 235 236void security_bprm_post_apply_creds(struct linux_binprm *bprm) 237{ 238 security_ops->bprm_post_apply_creds(bprm); 239} 240 241int security_bprm_set(struct linux_binprm *bprm) 242{ 243 return security_ops->bprm_set_security(bprm); 244} 245 246int security_bprm_check(struct linux_binprm *bprm) 247{ 248 return security_ops->bprm_check_security(bprm); 249} 250 251int security_bprm_secureexec(struct linux_binprm *bprm) 252{ 253 return security_ops->bprm_secureexec(bprm); 254} 255 256int security_sb_alloc(struct super_block *sb) 257{ 258 return security_ops->sb_alloc_security(sb); 259} 260 261void security_sb_free(struct super_block *sb) 262{ 263 security_ops->sb_free_security(sb); 264} 265 266int security_sb_copy_data(char *orig, char *copy) 267{ 268 return security_ops->sb_copy_data(orig, copy); 269} 270EXPORT_SYMBOL(security_sb_copy_data); 271 272int security_sb_kern_mount(struct super_block *sb, void *data) 273{ 274 return security_ops->sb_kern_mount(sb, data); 275} 276 277int security_sb_show_options(struct seq_file *m, struct super_block *sb) 278{ 279 return security_ops->sb_show_options(m, sb); 280} 281 282int security_sb_statfs(struct dentry *dentry) 283{ 284 return security_ops->sb_statfs(dentry); 285} 286 287int security_sb_mount(char *dev_name, struct path *path, 288 char *type, unsigned long flags, void *data) 289{ 290 return security_ops->sb_mount(dev_name, path, type, flags, data); 291} 292 293int security_sb_check_sb(struct vfsmount *mnt, struct path *path) 294{ 295 return security_ops->sb_check_sb(mnt, path); 296} 297 298int security_sb_umount(struct vfsmount *mnt, int flags) 299{ 300 return security_ops->sb_umount(mnt, flags); 301} 302 303void security_sb_umount_close(struct vfsmount *mnt) 304{ 305 security_ops->sb_umount_close(mnt); 306} 307 308void security_sb_umount_busy(struct vfsmount *mnt) 309{ 310 security_ops->sb_umount_busy(mnt); 311} 312 313void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data) 314{ 315 security_ops->sb_post_remount(mnt, flags, data); 316} 317 318void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint) 319{ 320 security_ops->sb_post_addmount(mnt, mountpoint); 321} 322 323int security_sb_pivotroot(struct path *old_path, struct path *new_path) 324{ 325 return security_ops->sb_pivotroot(old_path, new_path); 326} 327 328void security_sb_post_pivotroot(struct path *old_path, struct path *new_path) 329{ 330 security_ops->sb_post_pivotroot(old_path, new_path); 331} 332 333int security_sb_set_mnt_opts(struct super_block *sb, 334 struct security_mnt_opts *opts) 335{ 336 return security_ops->sb_set_mnt_opts(sb, opts); 337} 338EXPORT_SYMBOL(security_sb_set_mnt_opts); 339 340void security_sb_clone_mnt_opts(const struct super_block *oldsb, 341 struct super_block *newsb) 342{ 343 security_ops->sb_clone_mnt_opts(oldsb, newsb); 344} 345EXPORT_SYMBOL(security_sb_clone_mnt_opts); 346 347int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 348{ 349 return security_ops->sb_parse_opts_str(options, opts); 350} 351EXPORT_SYMBOL(security_sb_parse_opts_str); 352 353int security_inode_alloc(struct inode *inode) 354{ 355 inode->i_security = NULL; 356 return security_ops->inode_alloc_security(inode); 357} 358 359void security_inode_free(struct inode *inode) 360{ 361 security_ops->inode_free_security(inode); 362} 363 364int security_inode_init_security(struct inode *inode, struct inode *dir, 365 char **name, void **value, size_t *len) 366{ 367 if (unlikely(IS_PRIVATE(inode))) 368 return -EOPNOTSUPP; 369 return security_ops->inode_init_security(inode, dir, name, value, len); 370} 371EXPORT_SYMBOL(security_inode_init_security); 372 373int security_inode_create(struct inode *dir, struct dentry *dentry, int mode) 374{ 375 if (unlikely(IS_PRIVATE(dir))) 376 return 0; 377 return security_ops->inode_create(dir, dentry, mode); 378} 379 380int security_inode_link(struct dentry *old_dentry, struct inode *dir, 381 struct dentry *new_dentry) 382{ 383 if (unlikely(IS_PRIVATE(old_dentry->d_inode))) 384 return 0; 385 return security_ops->inode_link(old_dentry, dir, new_dentry); 386} 387 388int security_inode_unlink(struct inode *dir, struct dentry *dentry) 389{ 390 if (unlikely(IS_PRIVATE(dentry->d_inode))) 391 return 0; 392 return security_ops->inode_unlink(dir, dentry); 393} 394 395int security_inode_symlink(struct inode *dir, struct dentry *dentry, 396 const char *old_name) 397{ 398 if (unlikely(IS_PRIVATE(dir))) 399 return 0; 400 return security_ops->inode_symlink(dir, dentry, old_name); 401} 402 403int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) 404{ 405 if (unlikely(IS_PRIVATE(dir))) 406 return 0; 407 return security_ops->inode_mkdir(dir, dentry, mode); 408} 409 410int security_inode_rmdir(struct inode *dir, struct dentry *dentry) 411{ 412 if (unlikely(IS_PRIVATE(dentry->d_inode))) 413 return 0; 414 return security_ops->inode_rmdir(dir, dentry); 415} 416 417int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) 418{ 419 if (unlikely(IS_PRIVATE(dir))) 420 return 0; 421 return security_ops->inode_mknod(dir, dentry, mode, dev); 422} 423 424int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 425 struct inode *new_dir, struct dentry *new_dentry) 426{ 427 if (unlikely(IS_PRIVATE(old_dentry->d_inode) || 428 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) 429 return 0; 430 return security_ops->inode_rename(old_dir, old_dentry, 431 new_dir, new_dentry); 432} 433 434int security_inode_readlink(struct dentry *dentry) 435{ 436 if (unlikely(IS_PRIVATE(dentry->d_inode))) 437 return 0; 438 return security_ops->inode_readlink(dentry); 439} 440 441int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) 442{ 443 if (unlikely(IS_PRIVATE(dentry->d_inode))) 444 return 0; 445 return security_ops->inode_follow_link(dentry, nd); 446} 447 448int security_inode_permission(struct inode *inode, int mask) 449{ 450 if (unlikely(IS_PRIVATE(inode))) 451 return 0; 452 return security_ops->inode_permission(inode, mask); 453} 454 455int security_inode_setattr(struct dentry *dentry, struct iattr *attr) 456{ 457 if (unlikely(IS_PRIVATE(dentry->d_inode))) 458 return 0; 459 return security_ops->inode_setattr(dentry, attr); 460} 461EXPORT_SYMBOL_GPL(security_inode_setattr); 462 463int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) 464{ 465 if (unlikely(IS_PRIVATE(dentry->d_inode))) 466 return 0; 467 return security_ops->inode_getattr(mnt, dentry); 468} 469 470void security_inode_delete(struct inode *inode) 471{ 472 if (unlikely(IS_PRIVATE(inode))) 473 return; 474 security_ops->inode_delete(inode); 475} 476 477int security_inode_setxattr(struct dentry *dentry, const char *name, 478 const void *value, size_t size, int flags) 479{ 480 if (unlikely(IS_PRIVATE(dentry->d_inode))) 481 return 0; 482 return security_ops->inode_setxattr(dentry, name, value, size, flags); 483} 484 485void security_inode_post_setxattr(struct dentry *dentry, const char *name, 486 const void *value, size_t size, int flags) 487{ 488 if (unlikely(IS_PRIVATE(dentry->d_inode))) 489 return; 490 security_ops->inode_post_setxattr(dentry, name, value, size, flags); 491} 492 493int security_inode_getxattr(struct dentry *dentry, const char *name) 494{ 495 if (unlikely(IS_PRIVATE(dentry->d_inode))) 496 return 0; 497 return security_ops->inode_getxattr(dentry, name); 498} 499 500int security_inode_listxattr(struct dentry *dentry) 501{ 502 if (unlikely(IS_PRIVATE(dentry->d_inode))) 503 return 0; 504 return security_ops->inode_listxattr(dentry); 505} 506 507int security_inode_removexattr(struct dentry *dentry, const char *name) 508{ 509 if (unlikely(IS_PRIVATE(dentry->d_inode))) 510 return 0; 511 return security_ops->inode_removexattr(dentry, name); 512} 513 514int security_inode_need_killpriv(struct dentry *dentry) 515{ 516 return security_ops->inode_need_killpriv(dentry); 517} 518 519int security_inode_killpriv(struct dentry *dentry) 520{ 521 return security_ops->inode_killpriv(dentry); 522} 523 524int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) 525{ 526 if (unlikely(IS_PRIVATE(inode))) 527 return 0; 528 return security_ops->inode_getsecurity(inode, name, buffer, alloc); 529} 530 531int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 532{ 533 if (unlikely(IS_PRIVATE(inode))) 534 return 0; 535 return security_ops->inode_setsecurity(inode, name, value, size, flags); 536} 537 538int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 539{ 540 if (unlikely(IS_PRIVATE(inode))) 541 return 0; 542 return security_ops->inode_listsecurity(inode, buffer, buffer_size); 543} 544 545void security_inode_getsecid(const struct inode *inode, u32 *secid) 546{ 547 security_ops->inode_getsecid(inode, secid); 548} 549 550int security_file_permission(struct file *file, int mask) 551{ 552 return security_ops->file_permission(file, mask); 553} 554 555int security_file_alloc(struct file *file) 556{ 557 return security_ops->file_alloc_security(file); 558} 559 560void security_file_free(struct file *file) 561{ 562 security_ops->file_free_security(file); 563} 564 565int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 566{ 567 return security_ops->file_ioctl(file, cmd, arg); 568} 569 570int security_file_mmap(struct file *file, unsigned long reqprot, 571 unsigned long prot, unsigned long flags, 572 unsigned long addr, unsigned long addr_only) 573{ 574 return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only); 575} 576 577int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 578 unsigned long prot) 579{ 580 return security_ops->file_mprotect(vma, reqprot, prot); 581} 582 583int security_file_lock(struct file *file, unsigned int cmd) 584{ 585 return security_ops->file_lock(file, cmd); 586} 587 588int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) 589{ 590 return security_ops->file_fcntl(file, cmd, arg); 591} 592 593int security_file_set_fowner(struct file *file) 594{ 595 return security_ops->file_set_fowner(file); 596} 597 598int security_file_send_sigiotask(struct task_struct *tsk, 599 struct fown_struct *fown, int sig) 600{ 601 return security_ops->file_send_sigiotask(tsk, fown, sig); 602} 603 604int security_file_receive(struct file *file) 605{ 606 return security_ops->file_receive(file); 607} 608 609int security_dentry_open(struct file *file, const struct cred *cred) 610{ 611 return security_ops->dentry_open(file, cred); 612} 613 614int security_task_create(unsigned long clone_flags) 615{ 616 return security_ops->task_create(clone_flags); 617} 618 619int security_cred_alloc(struct cred *cred) 620{ 621 return security_ops->cred_alloc_security(cred); 622} 623 624void security_cred_free(struct cred *cred) 625{ 626 security_ops->cred_free(cred); 627} 628 629int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) 630{ 631 return security_ops->task_setuid(id0, id1, id2, flags); 632} 633 634int security_task_post_setuid(uid_t old_ruid, uid_t old_euid, 635 uid_t old_suid, int flags) 636{ 637 return security_ops->task_post_setuid(old_ruid, old_euid, old_suid, flags); 638} 639 640int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) 641{ 642 return security_ops->task_setgid(id0, id1, id2, flags); 643} 644 645int security_task_setpgid(struct task_struct *p, pid_t pgid) 646{ 647 return security_ops->task_setpgid(p, pgid); 648} 649 650int security_task_getpgid(struct task_struct *p) 651{ 652 return security_ops->task_getpgid(p); 653} 654 655int security_task_getsid(struct task_struct *p) 656{ 657 return security_ops->task_getsid(p); 658} 659 660void security_task_getsecid(struct task_struct *p, u32 *secid) 661{ 662 security_ops->task_getsecid(p, secid); 663} 664EXPORT_SYMBOL(security_task_getsecid); 665 666int security_task_setgroups(struct group_info *group_info) 667{ 668 return security_ops->task_setgroups(group_info); 669} 670 671int security_task_setnice(struct task_struct *p, int nice) 672{ 673 return security_ops->task_setnice(p, nice); 674} 675 676int security_task_setioprio(struct task_struct *p, int ioprio) 677{ 678 return security_ops->task_setioprio(p, ioprio); 679} 680 681int security_task_getioprio(struct task_struct *p) 682{ 683 return security_ops->task_getioprio(p); 684} 685 686int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) 687{ 688 return security_ops->task_setrlimit(resource, new_rlim); 689} 690 691int security_task_setscheduler(struct task_struct *p, 692 int policy, struct sched_param *lp) 693{ 694 return security_ops->task_setscheduler(p, policy, lp); 695} 696 697int security_task_getscheduler(struct task_struct *p) 698{ 699 return security_ops->task_getscheduler(p); 700} 701 702int security_task_movememory(struct task_struct *p) 703{ 704 return security_ops->task_movememory(p); 705} 706 707int security_task_kill(struct task_struct *p, struct siginfo *info, 708 int sig, u32 secid) 709{ 710 return security_ops->task_kill(p, info, sig, secid); 711} 712 713int security_task_wait(struct task_struct *p) 714{ 715 return security_ops->task_wait(p); 716} 717 718int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 719 unsigned long arg4, unsigned long arg5, long *rc_p) 720{ 721 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5, rc_p); 722} 723 724void security_task_reparent_to_init(struct task_struct *p) 725{ 726 security_ops->task_reparent_to_init(p); 727} 728 729void security_task_to_inode(struct task_struct *p, struct inode *inode) 730{ 731 security_ops->task_to_inode(p, inode); 732} 733 734int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) 735{ 736 return security_ops->ipc_permission(ipcp, flag); 737} 738 739void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 740{ 741 security_ops->ipc_getsecid(ipcp, secid); 742} 743 744int security_msg_msg_alloc(struct msg_msg *msg) 745{ 746 return security_ops->msg_msg_alloc_security(msg); 747} 748 749void security_msg_msg_free(struct msg_msg *msg) 750{ 751 security_ops->msg_msg_free_security(msg); 752} 753 754int security_msg_queue_alloc(struct msg_queue *msq) 755{ 756 return security_ops->msg_queue_alloc_security(msq); 757} 758 759void security_msg_queue_free(struct msg_queue *msq) 760{ 761 security_ops->msg_queue_free_security(msq); 762} 763 764int security_msg_queue_associate(struct msg_queue *msq, int msqflg) 765{ 766 return security_ops->msg_queue_associate(msq, msqflg); 767} 768 769int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 770{ 771 return security_ops->msg_queue_msgctl(msq, cmd); 772} 773 774int security_msg_queue_msgsnd(struct msg_queue *msq, 775 struct msg_msg *msg, int msqflg) 776{ 777 return security_ops->msg_queue_msgsnd(msq, msg, msqflg); 778} 779 780int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 781 struct task_struct *target, long type, int mode) 782{ 783 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); 784} 785 786int security_shm_alloc(struct shmid_kernel *shp) 787{ 788 return security_ops->shm_alloc_security(shp); 789} 790 791void security_shm_free(struct shmid_kernel *shp) 792{ 793 security_ops->shm_free_security(shp); 794} 795 796int security_shm_associate(struct shmid_kernel *shp, int shmflg) 797{ 798 return security_ops->shm_associate(shp, shmflg); 799} 800 801int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 802{ 803 return security_ops->shm_shmctl(shp, cmd); 804} 805 806int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) 807{ 808 return security_ops->shm_shmat(shp, shmaddr, shmflg); 809} 810 811int security_sem_alloc(struct sem_array *sma) 812{ 813 return security_ops->sem_alloc_security(sma); 814} 815 816void security_sem_free(struct sem_array *sma) 817{ 818 security_ops->sem_free_security(sma); 819} 820 821int security_sem_associate(struct sem_array *sma, int semflg) 822{ 823 return security_ops->sem_associate(sma, semflg); 824} 825 826int security_sem_semctl(struct sem_array *sma, int cmd) 827{ 828 return security_ops->sem_semctl(sma, cmd); 829} 830 831int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 832 unsigned nsops, int alter) 833{ 834 return security_ops->sem_semop(sma, sops, nsops, alter); 835} 836 837void security_d_instantiate(struct dentry *dentry, struct inode *inode) 838{ 839 if (unlikely(inode && IS_PRIVATE(inode))) 840 return; 841 security_ops->d_instantiate(dentry, inode); 842} 843EXPORT_SYMBOL(security_d_instantiate); 844 845int security_getprocattr(struct task_struct *p, char *name, char **value) 846{ 847 return security_ops->getprocattr(p, name, value); 848} 849 850int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) 851{ 852 return security_ops->setprocattr(p, name, value, size); 853} 854 855int security_netlink_send(struct sock *sk, struct sk_buff *skb) 856{ 857 return security_ops->netlink_send(sk, skb); 858} 859 860int security_netlink_recv(struct sk_buff *skb, int cap) 861{ 862 return security_ops->netlink_recv(skb, cap); 863} 864EXPORT_SYMBOL(security_netlink_recv); 865 866int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 867{ 868 return security_ops->secid_to_secctx(secid, secdata, seclen); 869} 870EXPORT_SYMBOL(security_secid_to_secctx); 871 872int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) 873{ 874 return security_ops->secctx_to_secid(secdata, seclen, secid); 875} 876EXPORT_SYMBOL(security_secctx_to_secid); 877 878void security_release_secctx(char *secdata, u32 seclen) 879{ 880 security_ops->release_secctx(secdata, seclen); 881} 882EXPORT_SYMBOL(security_release_secctx); 883 884#ifdef CONFIG_SECURITY_NETWORK 885 886int security_unix_stream_connect(struct socket *sock, struct socket *other, 887 struct sock *newsk) 888{ 889 return security_ops->unix_stream_connect(sock, other, newsk); 890} 891EXPORT_SYMBOL(security_unix_stream_connect); 892 893int security_unix_may_send(struct socket *sock, struct socket *other) 894{ 895 return security_ops->unix_may_send(sock, other); 896} 897EXPORT_SYMBOL(security_unix_may_send); 898 899int security_socket_create(int family, int type, int protocol, int kern) 900{ 901 return security_ops->socket_create(family, type, protocol, kern); 902} 903 904int security_socket_post_create(struct socket *sock, int family, 905 int type, int protocol, int kern) 906{ 907 return security_ops->socket_post_create(sock, family, type, 908 protocol, kern); 909} 910 911int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) 912{ 913 return security_ops->socket_bind(sock, address, addrlen); 914} 915 916int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) 917{ 918 return security_ops->socket_connect(sock, address, addrlen); 919} 920 921int security_socket_listen(struct socket *sock, int backlog) 922{ 923 return security_ops->socket_listen(sock, backlog); 924} 925 926int security_socket_accept(struct socket *sock, struct socket *newsock) 927{ 928 return security_ops->socket_accept(sock, newsock); 929} 930 931void security_socket_post_accept(struct socket *sock, struct socket *newsock) 932{ 933 security_ops->socket_post_accept(sock, newsock); 934} 935 936int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) 937{ 938 return security_ops->socket_sendmsg(sock, msg, size); 939} 940 941int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 942 int size, int flags) 943{ 944 return security_ops->socket_recvmsg(sock, msg, size, flags); 945} 946 947int security_socket_getsockname(struct socket *sock) 948{ 949 return security_ops->socket_getsockname(sock); 950} 951 952int security_socket_getpeername(struct socket *sock) 953{ 954 return security_ops->socket_getpeername(sock); 955} 956 957int security_socket_getsockopt(struct socket *sock, int level, int optname) 958{ 959 return security_ops->socket_getsockopt(sock, level, optname); 960} 961 962int security_socket_setsockopt(struct socket *sock, int level, int optname) 963{ 964 return security_ops->socket_setsockopt(sock, level, optname); 965} 966 967int security_socket_shutdown(struct socket *sock, int how) 968{ 969 return security_ops->socket_shutdown(sock, how); 970} 971 972int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) 973{ 974 return security_ops->socket_sock_rcv_skb(sk, skb); 975} 976EXPORT_SYMBOL(security_sock_rcv_skb); 977 978int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 979 int __user *optlen, unsigned len) 980{ 981 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); 982} 983 984int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 985{ 986 return security_ops->socket_getpeersec_dgram(sock, skb, secid); 987} 988EXPORT_SYMBOL(security_socket_getpeersec_dgram); 989 990int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 991{ 992 return security_ops->sk_alloc_security(sk, family, priority); 993} 994 995void security_sk_free(struct sock *sk) 996{ 997 security_ops->sk_free_security(sk); 998} 999 1000void security_sk_clone(const struct sock *sk, struct sock *newsk) 1001{ 1002 security_ops->sk_clone_security(sk, newsk); 1003} 1004 1005void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 1006{ 1007 security_ops->sk_getsecid(sk, &fl->secid); 1008} 1009EXPORT_SYMBOL(security_sk_classify_flow); 1010 1011void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 1012{ 1013 security_ops->req_classify_flow(req, fl); 1014} 1015EXPORT_SYMBOL(security_req_classify_flow); 1016 1017void security_sock_graft(struct sock *sk, struct socket *parent) 1018{ 1019 security_ops->sock_graft(sk, parent); 1020} 1021EXPORT_SYMBOL(security_sock_graft); 1022 1023int security_inet_conn_request(struct sock *sk, 1024 struct sk_buff *skb, struct request_sock *req) 1025{ 1026 return security_ops->inet_conn_request(sk, skb, req); 1027} 1028EXPORT_SYMBOL(security_inet_conn_request); 1029 1030void security_inet_csk_clone(struct sock *newsk, 1031 const struct request_sock *req) 1032{ 1033 security_ops->inet_csk_clone(newsk, req); 1034} 1035 1036void security_inet_conn_established(struct sock *sk, 1037 struct sk_buff *skb) 1038{ 1039 security_ops->inet_conn_established(sk, skb); 1040} 1041 1042#endif /* CONFIG_SECURITY_NETWORK */ 1043 1044#ifdef CONFIG_SECURITY_NETWORK_XFRM 1045 1046int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) 1047{ 1048 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); 1049} 1050EXPORT_SYMBOL(security_xfrm_policy_alloc); 1051 1052int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, 1053 struct xfrm_sec_ctx **new_ctxp) 1054{ 1055 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); 1056} 1057 1058void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1059{ 1060 security_ops->xfrm_policy_free_security(ctx); 1061} 1062EXPORT_SYMBOL(security_xfrm_policy_free); 1063 1064int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1065{ 1066 return security_ops->xfrm_policy_delete_security(ctx); 1067} 1068 1069int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) 1070{ 1071 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); 1072} 1073EXPORT_SYMBOL(security_xfrm_state_alloc); 1074 1075int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1076 struct xfrm_sec_ctx *polsec, u32 secid) 1077{ 1078 if (!polsec) 1079 return 0; 1080 /* 1081 * We want the context to be taken from secid which is usually 1082 * from the sock. 1083 */ 1084 return security_ops->xfrm_state_alloc_security(x, NULL, secid); 1085} 1086 1087int security_xfrm_state_delete(struct xfrm_state *x) 1088{ 1089 return security_ops->xfrm_state_delete_security(x); 1090} 1091EXPORT_SYMBOL(security_xfrm_state_delete); 1092 1093void security_xfrm_state_free(struct xfrm_state *x) 1094{ 1095 security_ops->xfrm_state_free_security(x); 1096} 1097 1098int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1099{ 1100 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); 1101} 1102 1103int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1104 struct xfrm_policy *xp, struct flowi *fl) 1105{ 1106 return security_ops->xfrm_state_pol_flow_match(x, xp, fl); 1107} 1108 1109int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1110{ 1111 return security_ops->xfrm_decode_session(skb, secid, 1); 1112} 1113 1114void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1115{ 1116 int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0); 1117 1118 BUG_ON(rc); 1119} 1120EXPORT_SYMBOL(security_skb_classify_flow); 1121 1122#endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1123 1124#ifdef CONFIG_KEYS 1125 1126int security_key_alloc(struct key *key, struct task_struct *tsk, unsigned long flags) 1127{ 1128 return security_ops->key_alloc(key, tsk, flags); 1129} 1130 1131void security_key_free(struct key *key) 1132{ 1133 security_ops->key_free(key); 1134} 1135 1136int security_key_permission(key_ref_t key_ref, 1137 struct task_struct *context, key_perm_t perm) 1138{ 1139 return security_ops->key_permission(key_ref, context, perm); 1140} 1141 1142int security_key_getsecurity(struct key *key, char **_buffer) 1143{ 1144 return security_ops->key_getsecurity(key, _buffer); 1145} 1146 1147#endif /* CONFIG_KEYS */ 1148 1149#ifdef CONFIG_AUDIT 1150 1151int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) 1152{ 1153 return security_ops->audit_rule_init(field, op, rulestr, lsmrule); 1154} 1155 1156int security_audit_rule_known(struct audit_krule *krule) 1157{ 1158 return security_ops->audit_rule_known(krule); 1159} 1160 1161void security_audit_rule_free(void *lsmrule) 1162{ 1163 security_ops->audit_rule_free(lsmrule); 1164} 1165 1166int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, 1167 struct audit_context *actx) 1168{ 1169 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx); 1170} 1171 1172#endif /* CONFIG_AUDIT */ 1173