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
  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
  29static inline int verify(struct security_operations *ops)
  30{
  31        /* verify the security_operations structure exists */
  32        if (!ops)
  33                return -EINVAL;
  34        security_fixup_ops(ops);
  35        return 0;
  36}
  37
  38static void __init do_security_initcalls(void)
  39{
  40        initcall_t *call;
  41        call = __security_initcall_start;
  42        while (call < __security_initcall_end) {
  43                (*call) ();
  44                call++;
  45        }
  46}
  47
  48/**
  49 * security_init - initializes the security framework
  50 *
  51 * This should be called early in the kernel initialization sequence.
  52 */
  53int __init security_init(void)
  54{
  55        printk(KERN_INFO "Security Framework initialized\n");
  56
  57        security_fixup_ops(&default_security_ops);
  58        security_ops = &default_security_ops;
  59        do_security_initcalls();
  60
  61        return 0;
  62}
  63
  64/* Save user chosen LSM */
  65static int __init choose_lsm(char *str)
  66{
  67        strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
  68        return 1;
  69}
  70__setup("security=", choose_lsm);
  71
  72/**
  73 * security_module_enable - Load given security module on boot ?
  74 * @ops: a pointer to the struct security_operations that is to be checked.
  75 *
  76 * Each LSM must pass this method before registering its own operations
  77 * to avoid security registration races. This method may also be used
  78 * to check if your LSM is currently loaded during kernel initialization.
  79 *
  80 * Return true if:
  81 *      -The passed LSM is the one chosen by user at boot time,
  82 *      -or user didn't specify a specific LSM and we're the first to ask
  83 *       for registration permission,
  84 *      -or the passed LSM is currently loaded.
  85 * Otherwise, return false.
  86 */
  87int __init security_module_enable(struct security_operations *ops)
  88{
  89        if (!*chosen_lsm)
  90                strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX);
  91        else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX))
  92                return 0;
  93
  94        return 1;
  95}
  96
  97/**
  98 * register_security - registers a security framework with the kernel
  99 * @ops: a pointer to the struct security_options that is to be registered
 100 *
 101 * This function allows a security module to register itself with the
 102 * kernel security subsystem.  Some rudimentary checking is done on the @ops
 103 * value passed to this function. You'll need to check first if your LSM
 104 * is allowed to register its @ops by calling security_module_enable(@ops).
 105 *
 106 * If there is already a security module registered with the kernel,
 107 * an error will be returned.  Otherwise %0 is returned on success.
 108 */
 109int register_security(struct security_operations *ops)
 110{
 111        if (verify(ops)) {
 112                printk(KERN_DEBUG "%s could not verify "
 113                       "security_operations structure.\n", __func__);
 114                return -EINVAL;
 115        }
 116
 117        if (security_ops != &default_security_ops)
 118                return -EAGAIN;
 119
 120        security_ops = ops;
 121
 122        return 0;
 123}
 124
 125/* Security operations */
 126
 127int security_ptrace_may_access(struct task_struct *child, unsigned int mode)
 128{
 129        return security_ops->ptrace_may_access(child, mode);
 130}
 131
 132int security_ptrace_traceme(struct task_struct *parent)
 133{
 134        return security_ops->ptrace_traceme(parent);
 135}
 136
 137int security_capget(struct task_struct *target,
 138                     kernel_cap_t *effective,
 139                     kernel_cap_t *inheritable,
 140                     kernel_cap_t *permitted)
 141{
 142        return security_ops->capget(target, effective, inheritable, permitted);
 143}
 144
 145int security_capset(struct cred *new, const struct cred *old,
 146                    const kernel_cap_t *effective,
 147                    const kernel_cap_t *inheritable,
 148                    const kernel_cap_t *permitted)
 149{
 150        return security_ops->capset(new, old,
 151                                    effective, inheritable, permitted);
 152}
 153
 154int security_capable(int cap)
 155{
 156        return security_ops->capable(current, current_cred(), cap,
 157                                     SECURITY_CAP_AUDIT);
 158}
 159
 160int security_real_capable(struct task_struct *tsk, int cap)
 161{
 162        const struct cred *cred;
 163        int ret;
 164
 165        cred = get_task_cred(tsk);
 166        ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
 167        put_cred(cred);
 168        return ret;
 169}
 170
 171int security_real_capable_noaudit(struct task_struct *tsk, int cap)
 172{
 173        const struct cred *cred;
 174        int ret;
 175
 176        cred = get_task_cred(tsk);
 177        ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
 178        put_cred(cred);
 179        return ret;
 180}
 181
 182int security_acct(struct file *file)
 183{
 184        return security_ops->acct(file);
 185}
 186
 187int security_sysctl(struct ctl_table *table, int op)
 188{
 189        return security_ops->sysctl(table, op);
 190}
 191
 192int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 193{
 194        return security_ops->quotactl(cmds, type, id, sb);
 195}
 196
 197int security_quota_on(struct dentry *dentry)
 198{
 199        return security_ops->quota_on(dentry);
 200}
 201
 202int security_syslog(int type)
 203{
 204        return security_ops->syslog(type);
 205}
 206
 207int security_settime(struct timespec *ts, struct timezone *tz)
 208{
 209        return security_ops->settime(ts, tz);
 210}
 211
 212int security_vm_enough_memory(long pages)
 213{
 214        WARN_ON(current->mm == NULL);
 215        return security_ops->vm_enough_memory(current->mm, pages);
 216}
 217
 218int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 219{
 220        WARN_ON(mm == NULL);
 221        return security_ops->vm_enough_memory(mm, pages);
 222}
 223
 224int security_vm_enough_memory_kern(long pages)
 225{
 226        /* If current->mm is a kernel thread then we will pass NULL,
 227           for this specific case that is fine */
 228        return security_ops->vm_enough_memory(current->mm, pages);
 229}
 230
 231int security_bprm_set_creds(struct linux_binprm *bprm)
 232{
 233        return security_ops->bprm_set_creds(bprm);
 234}
 235
 236int security_bprm_check(struct linux_binprm *bprm)
 237{
 238        return security_ops->bprm_check_security(bprm);
 239}
 240
 241void security_bprm_committing_creds(struct linux_binprm *bprm)
 242{
 243        security_ops->bprm_committing_creds(bprm);
 244}
 245
 246void security_bprm_committed_creds(struct linux_binprm *bprm)
 247{
 248        security_ops->bprm_committed_creds(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, int flags, void *data)
 273{
 274        return security_ops->sb_kern_mount(sb, flags, 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
 373#ifdef CONFIG_SECURITY_PATH
 374int security_path_mknod(struct path *path, struct dentry *dentry, int mode,
 375                        unsigned int dev)
 376{
 377        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 378                return 0;
 379        return security_ops->path_mknod(path, dentry, mode, dev);
 380}
 381EXPORT_SYMBOL(security_path_mknod);
 382
 383int security_path_mkdir(struct path *path, struct dentry *dentry, int mode)
 384{
 385        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 386                return 0;
 387        return security_ops->path_mkdir(path, dentry, mode);
 388}
 389
 390int security_path_rmdir(struct path *path, struct dentry *dentry)
 391{
 392        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 393                return 0;
 394        return security_ops->path_rmdir(path, dentry);
 395}
 396
 397int security_path_unlink(struct path *path, struct dentry *dentry)
 398{
 399        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 400                return 0;
 401        return security_ops->path_unlink(path, dentry);
 402}
 403
 404int security_path_symlink(struct path *path, struct dentry *dentry,
 405                          const char *old_name)
 406{
 407        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 408                return 0;
 409        return security_ops->path_symlink(path, dentry, old_name);
 410}
 411
 412int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 413                       struct dentry *new_dentry)
 414{
 415        if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 416                return 0;
 417        return security_ops->path_link(old_dentry, new_dir, new_dentry);
 418}
 419
 420int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 421                         struct path *new_dir, struct dentry *new_dentry)
 422{
 423        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 424                     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 425                return 0;
 426        return security_ops->path_rename(old_dir, old_dentry, new_dir,
 427                                         new_dentry);
 428}
 429
 430int security_path_truncate(struct path *path, loff_t length,
 431                           unsigned int time_attrs)
 432{
 433        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 434                return 0;
 435        return security_ops->path_truncate(path, length, time_attrs);
 436}
 437#endif
 438
 439int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 440{
 441        if (unlikely(IS_PRIVATE(dir)))
 442                return 0;
 443        return security_ops->inode_create(dir, dentry, mode);
 444}
 445EXPORT_SYMBOL_GPL(security_inode_create);
 446
 447int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 448                         struct dentry *new_dentry)
 449{
 450        if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 451                return 0;
 452        return security_ops->inode_link(old_dentry, dir, new_dentry);
 453}
 454
 455int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 456{
 457        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 458                return 0;
 459        return security_ops->inode_unlink(dir, dentry);
 460}
 461
 462int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 463                            const char *old_name)
 464{
 465        if (unlikely(IS_PRIVATE(dir)))
 466                return 0;
 467        return security_ops->inode_symlink(dir, dentry, old_name);
 468}
 469
 470int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 471{
 472        if (unlikely(IS_PRIVATE(dir)))
 473                return 0;
 474        return security_ops->inode_mkdir(dir, dentry, mode);
 475}
 476EXPORT_SYMBOL_GPL(security_inode_mkdir);
 477
 478int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 479{
 480        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 481                return 0;
 482        return security_ops->inode_rmdir(dir, dentry);
 483}
 484
 485int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 486{
 487        if (unlikely(IS_PRIVATE(dir)))
 488                return 0;
 489        return security_ops->inode_mknod(dir, dentry, mode, dev);
 490}
 491
 492int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 493                           struct inode *new_dir, struct dentry *new_dentry)
 494{
 495        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 496            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 497                return 0;
 498        return security_ops->inode_rename(old_dir, old_dentry,
 499                                           new_dir, new_dentry);
 500}
 501
 502int security_inode_readlink(struct dentry *dentry)
 503{
 504        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 505                return 0;
 506        return security_ops->inode_readlink(dentry);
 507}
 508
 509int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 510{
 511        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 512                return 0;
 513        return security_ops->inode_follow_link(dentry, nd);
 514}
 515
 516int security_inode_permission(struct inode *inode, int mask)
 517{
 518        if (unlikely(IS_PRIVATE(inode)))
 519                return 0;
 520        return security_ops->inode_permission(inode, mask);
 521}
 522
 523int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 524{
 525        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 526                return 0;
 527        return security_ops->inode_setattr(dentry, attr);
 528}
 529EXPORT_SYMBOL_GPL(security_inode_setattr);
 530
 531int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 532{
 533        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 534                return 0;
 535        return security_ops->inode_getattr(mnt, dentry);
 536}
 537
 538void security_inode_delete(struct inode *inode)
 539{
 540        if (unlikely(IS_PRIVATE(inode)))
 541                return;
 542        security_ops->inode_delete(inode);
 543}
 544
 545int security_inode_setxattr(struct dentry *dentry, const char *name,
 546                            const void *value, size_t size, int flags)
 547{
 548        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 549                return 0;
 550        return security_ops->inode_setxattr(dentry, name, value, size, flags);
 551}
 552
 553void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 554                                  const void *value, size_t size, int flags)
 555{
 556        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 557                return;
 558        security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 559}
 560
 561int security_inode_getxattr(struct dentry *dentry, const char *name)
 562{
 563        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 564                return 0;
 565        return security_ops->inode_getxattr(dentry, name);
 566}
 567
 568int security_inode_listxattr(struct dentry *dentry)
 569{
 570        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 571                return 0;
 572        return security_ops->inode_listxattr(dentry);
 573}
 574
 575int security_inode_removexattr(struct dentry *dentry, const char *name)
 576{
 577        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 578                return 0;
 579        return security_ops->inode_removexattr(dentry, name);
 580}
 581
 582int security_inode_need_killpriv(struct dentry *dentry)
 583{
 584        return security_ops->inode_need_killpriv(dentry);
 585}
 586
 587int security_inode_killpriv(struct dentry *dentry)
 588{
 589        return security_ops->inode_killpriv(dentry);
 590}
 591
 592int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 593{
 594        if (unlikely(IS_PRIVATE(inode)))
 595                return 0;
 596        return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 597}
 598
 599int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 600{
 601        if (unlikely(IS_PRIVATE(inode)))
 602                return 0;
 603        return security_ops->inode_setsecurity(inode, name, value, size, flags);
 604}
 605
 606int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 607{
 608        if (unlikely(IS_PRIVATE(inode)))
 609                return 0;
 610        return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 611}
 612
 613void security_inode_getsecid(const struct inode *inode, u32 *secid)
 614{
 615        security_ops->inode_getsecid(inode, secid);
 616}
 617
 618int security_file_permission(struct file *file, int mask)
 619{
 620        return security_ops->file_permission(file, mask);
 621}
 622
 623int security_file_alloc(struct file *file)
 624{
 625        return security_ops->file_alloc_security(file);
 626}
 627
 628void security_file_free(struct file *file)
 629{
 630        security_ops->file_free_security(file);
 631}
 632
 633int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 634{
 635        return security_ops->file_ioctl(file, cmd, arg);
 636}
 637
 638int security_file_mmap(struct file *file, unsigned long reqprot,
 639                        unsigned long prot, unsigned long flags,
 640                        unsigned long addr, unsigned long addr_only)
 641{
 642        return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 643}
 644
 645int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 646                            unsigned long prot)
 647{
 648        return security_ops->file_mprotect(vma, reqprot, prot);
 649}
 650
 651int security_file_lock(struct file *file, unsigned int cmd)
 652{
 653        return security_ops->file_lock(file, cmd);
 654}
 655
 656int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 657{
 658        return security_ops->file_fcntl(file, cmd, arg);
 659}
 660
 661int security_file_set_fowner(struct file *file)
 662{
 663        return security_ops->file_set_fowner(file);
 664}
 665
 666int security_file_send_sigiotask(struct task_struct *tsk,
 667                                  struct fown_struct *fown, int sig)
 668{
 669        return security_ops->file_send_sigiotask(tsk, fown, sig);
 670}
 671
 672int security_file_receive(struct file *file)
 673{
 674        return security_ops->file_receive(file);
 675}
 676
 677int security_dentry_open(struct file *file, const struct cred *cred)
 678{
 679        return security_ops->dentry_open(file, cred);
 680}
 681
 682int security_task_create(unsigned long clone_flags)
 683{
 684        return security_ops->task_create(clone_flags);
 685}
 686
 687void security_cred_free(struct cred *cred)
 688{
 689        security_ops->cred_free(cred);
 690}
 691
 692int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 693{
 694        return security_ops->cred_prepare(new, old, gfp);
 695}
 696
 697void security_commit_creds(struct cred *new, const struct cred *old)
 698{
 699        security_ops->cred_commit(new, old);
 700}
 701
 702int security_kernel_act_as(struct cred *new, u32 secid)
 703{
 704        return security_ops->kernel_act_as(new, secid);
 705}
 706
 707int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 708{
 709        return security_ops->kernel_create_files_as(new, inode);
 710}
 711
 712int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
 713{
 714        return security_ops->task_setuid(id0, id1, id2, flags);
 715}
 716
 717int security_task_fix_setuid(struct cred *new, const struct cred *old,
 718                             int flags)
 719{
 720        return security_ops->task_fix_setuid(new, old, flags);
 721}
 722
 723int security_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
 724{
 725        return security_ops->task_setgid(id0, id1, id2, flags);
 726}
 727
 728int security_task_setpgid(struct task_struct *p, pid_t pgid)
 729{
 730        return security_ops->task_setpgid(p, pgid);
 731}
 732
 733int security_task_getpgid(struct task_struct *p)
 734{
 735        return security_ops->task_getpgid(p);
 736}
 737
 738int security_task_getsid(struct task_struct *p)
 739{
 740        return security_ops->task_getsid(p);
 741}
 742
 743void security_task_getsecid(struct task_struct *p, u32 *secid)
 744{
 745        security_ops->task_getsecid(p, secid);
 746}
 747EXPORT_SYMBOL(security_task_getsecid);
 748
 749int security_task_setgroups(struct group_info *group_info)
 750{
 751        return security_ops->task_setgroups(group_info);
 752}
 753
 754int security_task_setnice(struct task_struct *p, int nice)
 755{
 756        return security_ops->task_setnice(p, nice);
 757}
 758
 759int security_task_setioprio(struct task_struct *p, int ioprio)
 760{
 761        return security_ops->task_setioprio(p, ioprio);
 762}
 763
 764int security_task_getioprio(struct task_struct *p)
 765{
 766        return security_ops->task_getioprio(p);
 767}
 768
 769int security_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
 770{
 771        return security_ops->task_setrlimit(resource, new_rlim);
 772}
 773
 774int security_task_setscheduler(struct task_struct *p,
 775                                int policy, struct sched_param *lp)
 776{
 777        return security_ops->task_setscheduler(p, policy, lp);
 778}
 779
 780int security_task_getscheduler(struct task_struct *p)
 781{
 782        return security_ops->task_getscheduler(p);
 783}
 784
 785int security_task_movememory(struct task_struct *p)
 786{
 787        return security_ops->task_movememory(p);
 788}
 789
 790int security_task_kill(struct task_struct *p, struct siginfo *info,
 791                        int sig, u32 secid)
 792{
 793        return security_ops->task_kill(p, info, sig, secid);
 794}
 795
 796int security_task_wait(struct task_struct *p)
 797{
 798        return security_ops->task_wait(p);
 799}
 800
 801int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 802                         unsigned long arg4, unsigned long arg5)
 803{
 804        return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 805}
 806
 807void security_task_to_inode(struct task_struct *p, struct inode *inode)
 808{
 809        security_ops->task_to_inode(p, inode);
 810}
 811
 812int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 813{
 814        return security_ops->ipc_permission(ipcp, flag);
 815}
 816
 817void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 818{
 819        security_ops->ipc_getsecid(ipcp, secid);
 820}
 821
 822int security_msg_msg_alloc(struct msg_msg *msg)
 823{
 824        return security_ops->msg_msg_alloc_security(msg);
 825}
 826
 827void security_msg_msg_free(struct msg_msg *msg)
 828{
 829        security_ops->msg_msg_free_security(msg);
 830}
 831
 832int security_msg_queue_alloc(struct msg_queue *msq)
 833{
 834        return security_ops->msg_queue_alloc_security(msq);
 835}
 836
 837void security_msg_queue_free(struct msg_queue *msq)
 838{
 839        security_ops->msg_queue_free_security(msq);
 840}
 841
 842int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 843{
 844        return security_ops->msg_queue_associate(msq, msqflg);
 845}
 846
 847int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 848{
 849        return security_ops->msg_queue_msgctl(msq, cmd);
 850}
 851
 852int security_msg_queue_msgsnd(struct msg_queue *msq,
 853                               struct msg_msg *msg, int msqflg)
 854{
 855        return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 856}
 857
 858int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 859                               struct task_struct *target, long type, int mode)
 860{
 861        return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 862}
 863
 864int security_shm_alloc(struct shmid_kernel *shp)
 865{
 866        return security_ops->shm_alloc_security(shp);
 867}
 868
 869void security_shm_free(struct shmid_kernel *shp)
 870{
 871        security_ops->shm_free_security(shp);
 872}
 873
 874int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 875{
 876        return security_ops->shm_associate(shp, shmflg);
 877}
 878
 879int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 880{
 881        return security_ops->shm_shmctl(shp, cmd);
 882}
 883
 884int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 885{
 886        return security_ops->shm_shmat(shp, shmaddr, shmflg);
 887}
 888
 889int security_sem_alloc(struct sem_array *sma)
 890{
 891        return security_ops->sem_alloc_security(sma);
 892}
 893
 894void security_sem_free(struct sem_array *sma)
 895{
 896        security_ops->sem_free_security(sma);
 897}
 898
 899int security_sem_associate(struct sem_array *sma, int semflg)
 900{
 901        return security_ops->sem_associate(sma, semflg);
 902}
 903
 904int security_sem_semctl(struct sem_array *sma, int cmd)
 905{
 906        return security_ops->sem_semctl(sma, cmd);
 907}
 908
 909int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 910                        unsigned nsops, int alter)
 911{
 912        return security_ops->sem_semop(sma, sops, nsops, alter);
 913}
 914
 915void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 916{
 917        if (unlikely(inode && IS_PRIVATE(inode)))
 918                return;
 919        security_ops->d_instantiate(dentry, inode);
 920}
 921EXPORT_SYMBOL(security_d_instantiate);
 922
 923int security_getprocattr(struct task_struct *p, char *name, char **value)
 924{
 925        return security_ops->getprocattr(p, name, value);
 926}
 927
 928int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 929{
 930        return security_ops->setprocattr(p, name, value, size);
 931}
 932
 933int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 934{
 935        return security_ops->netlink_send(sk, skb);
 936}
 937
 938int security_netlink_recv(struct sk_buff *skb, int cap)
 939{
 940        return security_ops->netlink_recv(skb, cap);
 941}
 942EXPORT_SYMBOL(security_netlink_recv);
 943
 944int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 945{
 946        return security_ops->secid_to_secctx(secid, secdata, seclen);
 947}
 948EXPORT_SYMBOL(security_secid_to_secctx);
 949
 950int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 951{
 952        return security_ops->secctx_to_secid(secdata, seclen, secid);
 953}
 954EXPORT_SYMBOL(security_secctx_to_secid);
 955
 956void security_release_secctx(char *secdata, u32 seclen)
 957{
 958        security_ops->release_secctx(secdata, seclen);
 959}
 960EXPORT_SYMBOL(security_release_secctx);
 961
 962#ifdef CONFIG_SECURITY_NETWORK
 963
 964int security_unix_stream_connect(struct socket *sock, struct socket *other,
 965                                 struct sock *newsk)
 966{
 967        return security_ops->unix_stream_connect(sock, other, newsk);
 968}
 969EXPORT_SYMBOL(security_unix_stream_connect);
 970
 971int security_unix_may_send(struct socket *sock,  struct socket *other)
 972{
 973        return security_ops->unix_may_send(sock, other);
 974}
 975EXPORT_SYMBOL(security_unix_may_send);
 976
 977int security_socket_create(int family, int type, int protocol, int kern)
 978{
 979        return security_ops->socket_create(family, type, protocol, kern);
 980}
 981
 982int security_socket_post_create(struct socket *sock, int family,
 983                                int type, int protocol, int kern)
 984{
 985        return security_ops->socket_post_create(sock, family, type,
 986                                                protocol, kern);
 987}
 988
 989int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
 990{
 991        return security_ops->socket_bind(sock, address, addrlen);
 992}
 993
 994int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
 995{
 996        return security_ops->socket_connect(sock, address, addrlen);
 997}
 998
 999int security_socket_listen(struct socket *sock, int backlog)
1000{
1001        return security_ops->socket_listen(sock, backlog);
1002}
1003
1004int security_socket_accept(struct socket *sock, struct socket *newsock)
1005{
1006        return security_ops->socket_accept(sock, newsock);
1007}
1008
1009int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1010{
1011        return security_ops->socket_sendmsg(sock, msg, size);
1012}
1013
1014int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1015                            int size, int flags)
1016{
1017        return security_ops->socket_recvmsg(sock, msg, size, flags);
1018}
1019
1020int security_socket_getsockname(struct socket *sock)
1021{
1022        return security_ops->socket_getsockname(sock);
1023}
1024
1025int security_socket_getpeername(struct socket *sock)
1026{
1027        return security_ops->socket_getpeername(sock);
1028}
1029
1030int security_socket_getsockopt(struct socket *sock, int level, int optname)
1031{
1032        return security_ops->socket_getsockopt(sock, level, optname);
1033}
1034
1035int security_socket_setsockopt(struct socket *sock, int level, int optname)
1036{
1037        return security_ops->socket_setsockopt(sock, level, optname);
1038}
1039
1040int security_socket_shutdown(struct socket *sock, int how)
1041{
1042        return security_ops->socket_shutdown(sock, how);
1043}
1044
1045int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1046{
1047        return security_ops->socket_sock_rcv_skb(sk, skb);
1048}
1049EXPORT_SYMBOL(security_sock_rcv_skb);
1050
1051int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1052                                      int __user *optlen, unsigned len)
1053{
1054        return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1055}
1056
1057int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1058{
1059        return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1060}
1061EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1062
1063int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1064{
1065        return security_ops->sk_alloc_security(sk, family, priority);
1066}
1067
1068void security_sk_free(struct sock *sk)
1069{
1070        security_ops->sk_free_security(sk);
1071}
1072
1073void security_sk_clone(const struct sock *sk, struct sock *newsk)
1074{
1075        security_ops->sk_clone_security(sk, newsk);
1076}
1077
1078void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1079{
1080        security_ops->sk_getsecid(sk, &fl->secid);
1081}
1082EXPORT_SYMBOL(security_sk_classify_flow);
1083
1084void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1085{
1086        security_ops->req_classify_flow(req, fl);
1087}
1088EXPORT_SYMBOL(security_req_classify_flow);
1089
1090void security_sock_graft(struct sock *sk, struct socket *parent)
1091{
1092        security_ops->sock_graft(sk, parent);
1093}
1094EXPORT_SYMBOL(security_sock_graft);
1095
1096int security_inet_conn_request(struct sock *sk,
1097                        struct sk_buff *skb, struct request_sock *req)
1098{
1099        return security_ops->inet_conn_request(sk, skb, req);
1100}
1101EXPORT_SYMBOL(security_inet_conn_request);
1102
1103void security_inet_csk_clone(struct sock *newsk,
1104                        const struct request_sock *req)
1105{
1106        security_ops->inet_csk_clone(newsk, req);
1107}
1108
1109void security_inet_conn_established(struct sock *sk,
1110                        struct sk_buff *skb)
1111{
1112        security_ops->inet_conn_established(sk, skb);
1113}
1114
1115#endif  /* CONFIG_SECURITY_NETWORK */
1116
1117#ifdef CONFIG_SECURITY_NETWORK_XFRM
1118
1119int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1120{
1121        return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1122}
1123EXPORT_SYMBOL(security_xfrm_policy_alloc);
1124
1125int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1126                              struct xfrm_sec_ctx **new_ctxp)
1127{
1128        return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1129}
1130
1131void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1132{
1133        security_ops->xfrm_policy_free_security(ctx);
1134}
1135EXPORT_SYMBOL(security_xfrm_policy_free);
1136
1137int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1138{
1139        return security_ops->xfrm_policy_delete_security(ctx);
1140}
1141
1142int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1143{
1144        return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1145}
1146EXPORT_SYMBOL(security_xfrm_state_alloc);
1147
1148int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1149                                      struct xfrm_sec_ctx *polsec, u32 secid)
1150{
1151        if (!polsec)
1152                return 0;
1153        /*
1154         * We want the context to be taken from secid which is usually
1155         * from the sock.
1156         */
1157        return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1158}
1159
1160int security_xfrm_state_delete(struct xfrm_state *x)
1161{
1162        return security_ops->xfrm_state_delete_security(x);
1163}
1164EXPORT_SYMBOL(security_xfrm_state_delete);
1165
1166void security_xfrm_state_free(struct xfrm_state *x)
1167{
1168        security_ops->xfrm_state_free_security(x);
1169}
1170
1171int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1172{
1173        return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1174}
1175
1176int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1177                                       struct xfrm_policy *xp, struct flowi *fl)
1178{
1179        return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1180}
1181
1182int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1183{
1184        return security_ops->xfrm_decode_session(skb, secid, 1);
1185}
1186
1187void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1188{
1189        int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
1190
1191        BUG_ON(rc);
1192}
1193EXPORT_SYMBOL(security_skb_classify_flow);
1194
1195#endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1196
1197#ifdef CONFIG_KEYS
1198
1199int security_key_alloc(struct key *key, const struct cred *cred,
1200                       unsigned long flags)
1201{
1202        return security_ops->key_alloc(key, cred, flags);
1203}
1204
1205void security_key_free(struct key *key)
1206{
1207        security_ops->key_free(key);
1208}
1209
1210int security_key_permission(key_ref_t key_ref,
1211                            const struct cred *cred, key_perm_t perm)
1212{
1213        return security_ops->key_permission(key_ref, cred, perm);
1214}
1215
1216int security_key_getsecurity(struct key *key, char **_buffer)
1217{
1218        return security_ops->key_getsecurity(key, _buffer);
1219}
1220
1221#endif  /* CONFIG_KEYS */
1222
1223#ifdef CONFIG_AUDIT
1224
1225int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1226{
1227        return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1228}
1229
1230int security_audit_rule_known(struct audit_krule *krule)
1231{
1232        return security_ops->audit_rule_known(krule);
1233}
1234
1235void security_audit_rule_free(void *lsmrule)
1236{
1237        security_ops->audit_rule_free(lsmrule);
1238}
1239
1240int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1241                              struct audit_context *actx)
1242{
1243        return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1244}
1245
1246#endif /* CONFIG_AUDIT */
1247