linux/security/security.c
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   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_sysctl(struct ctl_table *table, int op)
 186{
 187        return security_ops->sysctl(table, op);
 188}
 189
 190int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 191{
 192        return security_ops->quotactl(cmds, type, id, sb);
 193}
 194
 195int security_quota_on(struct dentry *dentry)
 196{
 197        return security_ops->quota_on(dentry);
 198}
 199
 200int security_syslog(int type)
 201{
 202        return security_ops->syslog(type);
 203}
 204
 205int security_settime(struct timespec *ts, struct timezone *tz)
 206{
 207        return security_ops->settime(ts, tz);
 208}
 209
 210int security_vm_enough_memory(long pages)
 211{
 212        WARN_ON(current->mm == NULL);
 213        return security_ops->vm_enough_memory(current->mm, pages);
 214}
 215
 216int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 217{
 218        WARN_ON(mm == NULL);
 219        return security_ops->vm_enough_memory(mm, pages);
 220}
 221
 222int security_vm_enough_memory_kern(long pages)
 223{
 224        /* If current->mm is a kernel thread then we will pass NULL,
 225           for this specific case that is fine */
 226        return security_ops->vm_enough_memory(current->mm, pages);
 227}
 228
 229int security_bprm_set_creds(struct linux_binprm *bprm)
 230{
 231        return security_ops->bprm_set_creds(bprm);
 232}
 233
 234int security_bprm_check(struct linux_binprm *bprm)
 235{
 236        int ret;
 237
 238        ret = security_ops->bprm_check_security(bprm);
 239        if (ret)
 240                return ret;
 241        return ima_bprm_check(bprm);
 242}
 243
 244void security_bprm_committing_creds(struct linux_binprm *bprm)
 245{
 246        security_ops->bprm_committing_creds(bprm);
 247}
 248
 249void security_bprm_committed_creds(struct linux_binprm *bprm)
 250{
 251        security_ops->bprm_committed_creds(bprm);
 252}
 253
 254int security_bprm_secureexec(struct linux_binprm *bprm)
 255{
 256        return security_ops->bprm_secureexec(bprm);
 257}
 258
 259int security_sb_alloc(struct super_block *sb)
 260{
 261        return security_ops->sb_alloc_security(sb);
 262}
 263
 264void security_sb_free(struct super_block *sb)
 265{
 266        security_ops->sb_free_security(sb);
 267}
 268
 269int security_sb_copy_data(char *orig, char *copy)
 270{
 271        return security_ops->sb_copy_data(orig, copy);
 272}
 273EXPORT_SYMBOL(security_sb_copy_data);
 274
 275int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 276{
 277        return security_ops->sb_kern_mount(sb, flags, data);
 278}
 279
 280int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 281{
 282        return security_ops->sb_show_options(m, sb);
 283}
 284
 285int security_sb_statfs(struct dentry *dentry)
 286{
 287        return security_ops->sb_statfs(dentry);
 288}
 289
 290int security_sb_mount(char *dev_name, struct path *path,
 291                       char *type, unsigned long flags, void *data)
 292{
 293        return security_ops->sb_mount(dev_name, path, type, flags, data);
 294}
 295
 296int security_sb_umount(struct vfsmount *mnt, int flags)
 297{
 298        return security_ops->sb_umount(mnt, flags);
 299}
 300
 301int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 302{
 303        return security_ops->sb_pivotroot(old_path, new_path);
 304}
 305
 306int security_sb_set_mnt_opts(struct super_block *sb,
 307                                struct security_mnt_opts *opts)
 308{
 309        return security_ops->sb_set_mnt_opts(sb, opts);
 310}
 311EXPORT_SYMBOL(security_sb_set_mnt_opts);
 312
 313void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 314                                struct super_block *newsb)
 315{
 316        security_ops->sb_clone_mnt_opts(oldsb, newsb);
 317}
 318EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 319
 320int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 321{
 322        return security_ops->sb_parse_opts_str(options, opts);
 323}
 324EXPORT_SYMBOL(security_sb_parse_opts_str);
 325
 326int security_inode_alloc(struct inode *inode)
 327{
 328        inode->i_security = NULL;
 329        return security_ops->inode_alloc_security(inode);
 330}
 331
 332void security_inode_free(struct inode *inode)
 333{
 334        ima_inode_free(inode);
 335        security_ops->inode_free_security(inode);
 336}
 337
 338int security_inode_init_security(struct inode *inode, struct inode *dir,
 339                                  char **name, void **value, size_t *len)
 340{
 341        if (unlikely(IS_PRIVATE(inode)))
 342                return -EOPNOTSUPP;
 343        return security_ops->inode_init_security(inode, dir, name, value, len);
 344}
 345EXPORT_SYMBOL(security_inode_init_security);
 346
 347#ifdef CONFIG_SECURITY_PATH
 348int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 349                        unsigned int dev)
 350{
 351        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 352                return 0;
 353        return security_ops->path_mknod(dir, dentry, mode, dev);
 354}
 355EXPORT_SYMBOL(security_path_mknod);
 356
 357int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 358{
 359        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 360                return 0;
 361        return security_ops->path_mkdir(dir, dentry, mode);
 362}
 363
 364int security_path_rmdir(struct path *dir, struct dentry *dentry)
 365{
 366        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 367                return 0;
 368        return security_ops->path_rmdir(dir, dentry);
 369}
 370
 371int security_path_unlink(struct path *dir, struct dentry *dentry)
 372{
 373        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 374                return 0;
 375        return security_ops->path_unlink(dir, dentry);
 376}
 377
 378int security_path_symlink(struct path *dir, struct dentry *dentry,
 379                          const char *old_name)
 380{
 381        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 382                return 0;
 383        return security_ops->path_symlink(dir, dentry, old_name);
 384}
 385
 386int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 387                       struct dentry *new_dentry)
 388{
 389        if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 390                return 0;
 391        return security_ops->path_link(old_dentry, new_dir, new_dentry);
 392}
 393
 394int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 395                         struct path *new_dir, struct dentry *new_dentry)
 396{
 397        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 398                     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 399                return 0;
 400        return security_ops->path_rename(old_dir, old_dentry, new_dir,
 401                                         new_dentry);
 402}
 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_setattr(struct dentry *dentry, struct iattr *attr)
 517{
 518        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 519                return 0;
 520        return security_ops->inode_setattr(dentry, attr);
 521}
 522EXPORT_SYMBOL_GPL(security_inode_setattr);
 523
 524int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 525{
 526        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 527                return 0;
 528        return security_ops->inode_getattr(mnt, dentry);
 529}
 530
 531int security_inode_setxattr(struct dentry *dentry, const char *name,
 532                            const void *value, size_t size, int flags)
 533{
 534        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 535                return 0;
 536        return security_ops->inode_setxattr(dentry, name, value, size, flags);
 537}
 538
 539void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 540                                  const void *value, size_t size, int flags)
 541{
 542        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 543                return;
 544        security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 545}
 546
 547int security_inode_getxattr(struct dentry *dentry, const char *name)
 548{
 549        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 550                return 0;
 551        return security_ops->inode_getxattr(dentry, name);
 552}
 553
 554int security_inode_listxattr(struct dentry *dentry)
 555{
 556        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 557                return 0;
 558        return security_ops->inode_listxattr(dentry);
 559}
 560
 561int security_inode_removexattr(struct dentry *dentry, const char *name)
 562{
 563        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 564                return 0;
 565        return security_ops->inode_removexattr(dentry, name);
 566}
 567
 568int security_inode_need_killpriv(struct dentry *dentry)
 569{
 570        return security_ops->inode_need_killpriv(dentry);
 571}
 572
 573int security_inode_killpriv(struct dentry *dentry)
 574{
 575        return security_ops->inode_killpriv(dentry);
 576}
 577
 578int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 579{
 580        if (unlikely(IS_PRIVATE(inode)))
 581                return -EOPNOTSUPP;
 582        return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 583}
 584
 585int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 586{
 587        if (unlikely(IS_PRIVATE(inode)))
 588                return -EOPNOTSUPP;
 589        return security_ops->inode_setsecurity(inode, name, value, size, flags);
 590}
 591
 592int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 593{
 594        if (unlikely(IS_PRIVATE(inode)))
 595                return 0;
 596        return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 597}
 598
 599void security_inode_getsecid(const struct inode *inode, u32 *secid)
 600{
 601        security_ops->inode_getsecid(inode, secid);
 602}
 603
 604int security_file_permission(struct file *file, int mask)
 605{
 606        int ret;
 607
 608        ret = security_ops->file_permission(file, mask);
 609        if (ret)
 610                return ret;
 611
 612        return fsnotify_perm(file, mask);
 613}
 614
 615int security_file_alloc(struct file *file)
 616{
 617        return security_ops->file_alloc_security(file);
 618}
 619
 620void security_file_free(struct file *file)
 621{
 622        security_ops->file_free_security(file);
 623}
 624
 625int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 626{
 627        return security_ops->file_ioctl(file, cmd, arg);
 628}
 629
 630int security_file_mmap(struct file *file, unsigned long reqprot,
 631                        unsigned long prot, unsigned long flags,
 632                        unsigned long addr, unsigned long addr_only)
 633{
 634        int ret;
 635
 636        ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 637        if (ret)
 638                return ret;
 639        return ima_file_mmap(file, prot);
 640}
 641
 642int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 643                            unsigned long prot)
 644{
 645        return security_ops->file_mprotect(vma, reqprot, prot);
 646}
 647
 648int security_file_lock(struct file *file, unsigned int cmd)
 649{
 650        return security_ops->file_lock(file, cmd);
 651}
 652
 653int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 654{
 655        return security_ops->file_fcntl(file, cmd, arg);
 656}
 657
 658int security_file_set_fowner(struct file *file)
 659{
 660        return security_ops->file_set_fowner(file);
 661}
 662
 663int security_file_send_sigiotask(struct task_struct *tsk,
 664                                  struct fown_struct *fown, int sig)
 665{
 666        return security_ops->file_send_sigiotask(tsk, fown, sig);
 667}
 668
 669int security_file_receive(struct file *file)
 670{
 671        return security_ops->file_receive(file);
 672}
 673
 674int security_dentry_open(struct file *file, const struct cred *cred)
 675{
 676        int ret;
 677
 678        ret = security_ops->dentry_open(file, cred);
 679        if (ret)
 680                return ret;
 681
 682        return fsnotify_perm(file, MAY_OPEN);
 683}
 684
 685int security_task_create(unsigned long clone_flags)
 686{
 687        return security_ops->task_create(clone_flags);
 688}
 689
 690int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 691{
 692        return security_ops->cred_alloc_blank(cred, gfp);
 693}
 694
 695void security_cred_free(struct cred *cred)
 696{
 697        security_ops->cred_free(cred);
 698}
 699
 700int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 701{
 702        return security_ops->cred_prepare(new, old, gfp);
 703}
 704
 705void security_transfer_creds(struct cred *new, const struct cred *old)
 706{
 707        security_ops->cred_transfer(new, old);
 708}
 709
 710int security_kernel_act_as(struct cred *new, u32 secid)
 711{
 712        return security_ops->kernel_act_as(new, secid);
 713}
 714
 715int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 716{
 717        return security_ops->kernel_create_files_as(new, inode);
 718}
 719
 720int security_kernel_module_request(char *kmod_name)
 721{
 722        return security_ops->kernel_module_request(kmod_name);
 723}
 724
 725int security_task_fix_setuid(struct cred *new, const struct cred *old,
 726                             int flags)
 727{
 728        return security_ops->task_fix_setuid(new, old, flags);
 729}
 730
 731int security_task_setpgid(struct task_struct *p, pid_t pgid)
 732{
 733        return security_ops->task_setpgid(p, pgid);
 734}
 735
 736int security_task_getpgid(struct task_struct *p)
 737{
 738        return security_ops->task_getpgid(p);
 739}
 740
 741int security_task_getsid(struct task_struct *p)
 742{
 743        return security_ops->task_getsid(p);
 744}
 745
 746void security_task_getsecid(struct task_struct *p, u32 *secid)
 747{
 748        security_ops->task_getsecid(p, secid);
 749}
 750EXPORT_SYMBOL(security_task_getsecid);
 751
 752int security_task_setnice(struct task_struct *p, int nice)
 753{
 754        return security_ops->task_setnice(p, nice);
 755}
 756
 757int security_task_setioprio(struct task_struct *p, int ioprio)
 758{
 759        return security_ops->task_setioprio(p, ioprio);
 760}
 761
 762int security_task_getioprio(struct task_struct *p)
 763{
 764        return security_ops->task_getioprio(p);
 765}
 766
 767int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 768                struct rlimit *new_rlim)
 769{
 770        return security_ops->task_setrlimit(p, resource, new_rlim);
 771}
 772
 773int security_task_setscheduler(struct task_struct *p)
 774{
 775        return security_ops->task_setscheduler(p);
 776}
 777
 778int security_task_getscheduler(struct task_struct *p)
 779{
 780        return security_ops->task_getscheduler(p);
 781}
 782
 783int security_task_movememory(struct task_struct *p)
 784{
 785        return security_ops->task_movememory(p);
 786}
 787
 788int security_task_kill(struct task_struct *p, struct siginfo *info,
 789                        int sig, u32 secid)
 790{
 791        return security_ops->task_kill(p, info, sig, secid);
 792}
 793
 794int security_task_wait(struct task_struct *p)
 795{
 796        return security_ops->task_wait(p);
 797}
 798
 799int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 800                         unsigned long arg4, unsigned long arg5)
 801{
 802        return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 803}
 804
 805void security_task_to_inode(struct task_struct *p, struct inode *inode)
 806{
 807        security_ops->task_to_inode(p, inode);
 808}
 809
 810int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 811{
 812        return security_ops->ipc_permission(ipcp, flag);
 813}
 814
 815void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 816{
 817        security_ops->ipc_getsecid(ipcp, secid);
 818}
 819
 820int security_msg_msg_alloc(struct msg_msg *msg)
 821{
 822        return security_ops->msg_msg_alloc_security(msg);
 823}
 824
 825void security_msg_msg_free(struct msg_msg *msg)
 826{
 827        security_ops->msg_msg_free_security(msg);
 828}
 829
 830int security_msg_queue_alloc(struct msg_queue *msq)
 831{
 832        return security_ops->msg_queue_alloc_security(msq);
 833}
 834
 835void security_msg_queue_free(struct msg_queue *msq)
 836{
 837        security_ops->msg_queue_free_security(msq);
 838}
 839
 840int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 841{
 842        return security_ops->msg_queue_associate(msq, msqflg);
 843}
 844
 845int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 846{
 847        return security_ops->msg_queue_msgctl(msq, cmd);
 848}
 849
 850int security_msg_queue_msgsnd(struct msg_queue *msq,
 851                               struct msg_msg *msg, int msqflg)
 852{
 853        return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 854}
 855
 856int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 857                               struct task_struct *target, long type, int mode)
 858{
 859        return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 860}
 861
 862int security_shm_alloc(struct shmid_kernel *shp)
 863{
 864        return security_ops->shm_alloc_security(shp);
 865}
 866
 867void security_shm_free(struct shmid_kernel *shp)
 868{
 869        security_ops->shm_free_security(shp);
 870}
 871
 872int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 873{
 874        return security_ops->shm_associate(shp, shmflg);
 875}
 876
 877int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 878{
 879        return security_ops->shm_shmctl(shp, cmd);
 880}
 881
 882int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 883{
 884        return security_ops->shm_shmat(shp, shmaddr, shmflg);
 885}
 886
 887int security_sem_alloc(struct sem_array *sma)
 888{
 889        return security_ops->sem_alloc_security(sma);
 890}
 891
 892void security_sem_free(struct sem_array *sma)
 893{
 894        security_ops->sem_free_security(sma);
 895}
 896
 897int security_sem_associate(struct sem_array *sma, int semflg)
 898{
 899        return security_ops->sem_associate(sma, semflg);
 900}
 901
 902int security_sem_semctl(struct sem_array *sma, int cmd)
 903{
 904        return security_ops->sem_semctl(sma, cmd);
 905}
 906
 907int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 908                        unsigned nsops, int alter)
 909{
 910        return security_ops->sem_semop(sma, sops, nsops, alter);
 911}
 912
 913void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 914{
 915        if (unlikely(inode && IS_PRIVATE(inode)))
 916                return;
 917        security_ops->d_instantiate(dentry, inode);
 918}
 919EXPORT_SYMBOL(security_d_instantiate);
 920
 921int security_getprocattr(struct task_struct *p, char *name, char **value)
 922{
 923        return security_ops->getprocattr(p, name, value);
 924}
 925
 926int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 927{
 928        return security_ops->setprocattr(p, name, value, size);
 929}
 930
 931int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 932{
 933        return security_ops->netlink_send(sk, skb);
 934}
 935
 936int security_netlink_recv(struct sk_buff *skb, int cap)
 937{
 938        return security_ops->netlink_recv(skb, cap);
 939}
 940EXPORT_SYMBOL(security_netlink_recv);
 941
 942int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 943{
 944        return security_ops->secid_to_secctx(secid, secdata, seclen);
 945}
 946EXPORT_SYMBOL(security_secid_to_secctx);
 947
 948int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 949{
 950        return security_ops->secctx_to_secid(secdata, seclen, secid);
 951}
 952EXPORT_SYMBOL(security_secctx_to_secid);
 953
 954void security_release_secctx(char *secdata, u32 seclen)
 955{
 956        security_ops->release_secctx(secdata, seclen);
 957}
 958EXPORT_SYMBOL(security_release_secctx);
 959
 960int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 961{
 962        return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
 963}
 964EXPORT_SYMBOL(security_inode_notifysecctx);
 965
 966int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 967{
 968        return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
 969}
 970EXPORT_SYMBOL(security_inode_setsecctx);
 971
 972int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 973{
 974        return security_ops->inode_getsecctx(inode, ctx, ctxlen);
 975}
 976EXPORT_SYMBOL(security_inode_getsecctx);
 977
 978#ifdef CONFIG_SECURITY_NETWORK
 979
 980int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
 981{
 982        return security_ops->unix_stream_connect(sock, other, newsk);
 983}
 984EXPORT_SYMBOL(security_unix_stream_connect);
 985
 986int security_unix_may_send(struct socket *sock,  struct socket *other)
 987{
 988        return security_ops->unix_may_send(sock, other);
 989}
 990EXPORT_SYMBOL(security_unix_may_send);
 991
 992int security_socket_create(int family, int type, int protocol, int kern)
 993{
 994        return security_ops->socket_create(family, type, protocol, kern);
 995}
 996
 997int security_socket_post_create(struct socket *sock, int family,
 998                                int type, int protocol, int kern)
 999{
1000        return security_ops->socket_post_create(sock, family, type,
1001                                                protocol, kern);
1002}
1003
1004int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1005{
1006        return security_ops->socket_bind(sock, address, addrlen);
1007}
1008
1009int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1010{
1011        return security_ops->socket_connect(sock, address, addrlen);
1012}
1013
1014int security_socket_listen(struct socket *sock, int backlog)
1015{
1016        return security_ops->socket_listen(sock, backlog);
1017}
1018
1019int security_socket_accept(struct socket *sock, struct socket *newsock)
1020{
1021        return security_ops->socket_accept(sock, newsock);
1022}
1023
1024int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1025{
1026        return security_ops->socket_sendmsg(sock, msg, size);
1027}
1028
1029int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1030                            int size, int flags)
1031{
1032        return security_ops->socket_recvmsg(sock, msg, size, flags);
1033}
1034
1035int security_socket_getsockname(struct socket *sock)
1036{
1037        return security_ops->socket_getsockname(sock);
1038}
1039
1040int security_socket_getpeername(struct socket *sock)
1041{
1042        return security_ops->socket_getpeername(sock);
1043}
1044
1045int security_socket_getsockopt(struct socket *sock, int level, int optname)
1046{
1047        return security_ops->socket_getsockopt(sock, level, optname);
1048}
1049
1050int security_socket_setsockopt(struct socket *sock, int level, int optname)
1051{
1052        return security_ops->socket_setsockopt(sock, level, optname);
1053}
1054
1055int security_socket_shutdown(struct socket *sock, int how)
1056{
1057        return security_ops->socket_shutdown(sock, how);
1058}
1059
1060int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1061{
1062        return security_ops->socket_sock_rcv_skb(sk, skb);
1063}
1064EXPORT_SYMBOL(security_sock_rcv_skb);
1065
1066int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1067                                      int __user *optlen, unsigned len)
1068{
1069        return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1070}
1071
1072int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1073{
1074        return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1075}
1076EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1077
1078int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1079{
1080        return security_ops->sk_alloc_security(sk, family, priority);
1081}
1082
1083void security_sk_free(struct sock *sk)
1084{
1085        security_ops->sk_free_security(sk);
1086}
1087
1088void security_sk_clone(const struct sock *sk, struct sock *newsk)
1089{
1090        security_ops->sk_clone_security(sk, newsk);
1091}
1092
1093void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1094{
1095        security_ops->sk_getsecid(sk, &fl->secid);
1096}
1097EXPORT_SYMBOL(security_sk_classify_flow);
1098
1099void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1100{
1101        security_ops->req_classify_flow(req, fl);
1102}
1103EXPORT_SYMBOL(security_req_classify_flow);
1104
1105void security_sock_graft(struct sock *sk, struct socket *parent)
1106{
1107        security_ops->sock_graft(sk, parent);
1108}
1109EXPORT_SYMBOL(security_sock_graft);
1110
1111int security_inet_conn_request(struct sock *sk,
1112                        struct sk_buff *skb, struct request_sock *req)
1113{
1114        return security_ops->inet_conn_request(sk, skb, req);
1115}
1116EXPORT_SYMBOL(security_inet_conn_request);
1117
1118void security_inet_csk_clone(struct sock *newsk,
1119                        const struct request_sock *req)
1120{
1121        security_ops->inet_csk_clone(newsk, req);
1122}
1123
1124void security_inet_conn_established(struct sock *sk,
1125                        struct sk_buff *skb)
1126{
1127        security_ops->inet_conn_established(sk, skb);
1128}
1129
1130int security_secmark_relabel_packet(u32 secid)
1131{
1132        return security_ops->secmark_relabel_packet(secid);
1133}
1134EXPORT_SYMBOL(security_secmark_relabel_packet);
1135
1136void security_secmark_refcount_inc(void)
1137{
1138        security_ops->secmark_refcount_inc();
1139}
1140EXPORT_SYMBOL(security_secmark_refcount_inc);
1141
1142void security_secmark_refcount_dec(void)
1143{
1144        security_ops->secmark_refcount_dec();
1145}
1146EXPORT_SYMBOL(security_secmark_refcount_dec);
1147
1148int security_tun_dev_create(void)
1149{
1150        return security_ops->tun_dev_create();
1151}
1152EXPORT_SYMBOL(security_tun_dev_create);
1153
1154void security_tun_dev_post_create(struct sock *sk)
1155{
1156        return security_ops->tun_dev_post_create(sk);
1157}
1158EXPORT_SYMBOL(security_tun_dev_post_create);
1159
1160int security_tun_dev_attach(struct sock *sk)
1161{
1162        return security_ops->tun_dev_attach(sk);
1163}
1164EXPORT_SYMBOL(security_tun_dev_attach);
1165
1166#endif  /* CONFIG_SECURITY_NETWORK */
1167
1168#ifdef CONFIG_SECURITY_NETWORK_XFRM
1169
1170int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1171{
1172        return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1173}
1174EXPORT_SYMBOL(security_xfrm_policy_alloc);
1175
1176int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1177                              struct xfrm_sec_ctx **new_ctxp)
1178{
1179        return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1180}
1181
1182void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1183{
1184        security_ops->xfrm_policy_free_security(ctx);
1185}
1186EXPORT_SYMBOL(security_xfrm_policy_free);
1187
1188int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1189{
1190        return security_ops->xfrm_policy_delete_security(ctx);
1191}
1192
1193int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1194{
1195        return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1196}
1197EXPORT_SYMBOL(security_xfrm_state_alloc);
1198
1199int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1200                                      struct xfrm_sec_ctx *polsec, u32 secid)
1201{
1202        if (!polsec)
1203                return 0;
1204        /*
1205         * We want the context to be taken from secid which is usually
1206         * from the sock.
1207         */
1208        return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1209}
1210
1211int security_xfrm_state_delete(struct xfrm_state *x)
1212{
1213        return security_ops->xfrm_state_delete_security(x);
1214}
1215EXPORT_SYMBOL(security_xfrm_state_delete);
1216
1217void security_xfrm_state_free(struct xfrm_state *x)
1218{
1219        security_ops->xfrm_state_free_security(x);
1220}
1221
1222int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1223{
1224        return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1225}
1226
1227int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1228                                       struct xfrm_policy *xp, struct flowi *fl)
1229{
1230        return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1231}
1232
1233int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1234{
1235        return security_ops->xfrm_decode_session(skb, secid, 1);
1236}
1237
1238void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1239{
1240        int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1241
1242        BUG_ON(rc);
1243}
1244EXPORT_SYMBOL(security_skb_classify_flow);
1245
1246#endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1247
1248#ifdef CONFIG_KEYS
1249
1250int security_key_alloc(struct key *key, const struct cred *cred,
1251                       unsigned long flags)
1252{
1253        return security_ops->key_alloc(key, cred, flags);
1254}
1255
1256void security_key_free(struct key *key)
1257{
1258        security_ops->key_free(key);
1259}
1260
1261int security_key_permission(key_ref_t key_ref,
1262                            const struct cred *cred, key_perm_t perm)
1263{
1264        return security_ops->key_permission(key_ref, cred, perm);
1265}
1266
1267int security_key_getsecurity(struct key *key, char **_buffer)
1268{
1269        return security_ops->key_getsecurity(key, _buffer);
1270}
1271
1272#endif  /* CONFIG_KEYS */
1273
1274#ifdef CONFIG_AUDIT
1275
1276int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1277{
1278        return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1279}
1280
1281int security_audit_rule_known(struct audit_krule *krule)
1282{
1283        return security_ops->audit_rule_known(krule);
1284}
1285
1286void security_audit_rule_free(void *lsmrule)
1287{
1288        security_ops->audit_rule_free(lsmrule);
1289}
1290
1291int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1292                              struct audit_context *actx)
1293{
1294        return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1295}
1296
1297#endif /* CONFIG_AUDIT */
1298