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(struct user_namespace *ns, const struct cred *cred,
 158                     int cap)
 159{
 160        return security_ops->capable(current, cred, ns, cap,
 161                                     SECURITY_CAP_AUDIT);
 162}
 163
 164int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
 165                          int cap)
 166{
 167        const struct cred *cred;
 168        int ret;
 169
 170        cred = get_task_cred(tsk);
 171        ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_AUDIT);
 172        put_cred(cred);
 173        return ret;
 174}
 175
 176int security_real_capable_noaudit(struct task_struct *tsk,
 177                                  struct user_namespace *ns, int cap)
 178{
 179        const struct cred *cred;
 180        int ret;
 181
 182        cred = get_task_cred(tsk);
 183        ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_NOAUDIT);
 184        put_cred(cred);
 185        return ret;
 186}
 187
 188int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 189{
 190        return security_ops->quotactl(cmds, type, id, sb);
 191}
 192
 193int security_quota_on(struct dentry *dentry)
 194{
 195        return security_ops->quota_on(dentry);
 196}
 197
 198int security_syslog(int type)
 199{
 200        return security_ops->syslog(type);
 201}
 202
 203int security_settime(const struct timespec *ts, const struct timezone *tz)
 204{
 205        return security_ops->settime(ts, tz);
 206}
 207
 208int security_vm_enough_memory(long pages)
 209{
 210        WARN_ON(current->mm == NULL);
 211        return security_ops->vm_enough_memory(current->mm, pages);
 212}
 213
 214int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 215{
 216        WARN_ON(mm == NULL);
 217        return security_ops->vm_enough_memory(mm, pages);
 218}
 219
 220int security_vm_enough_memory_kern(long pages)
 221{
 222        /* If current->mm is a kernel thread then we will pass NULL,
 223           for this specific case that is fine */
 224        return security_ops->vm_enough_memory(current->mm, pages);
 225}
 226
 227int security_bprm_set_creds(struct linux_binprm *bprm)
 228{
 229        return security_ops->bprm_set_creds(bprm);
 230}
 231
 232int security_bprm_check(struct linux_binprm *bprm)
 233{
 234        int ret;
 235
 236        ret = security_ops->bprm_check_security(bprm);
 237        if (ret)
 238                return ret;
 239        return ima_bprm_check(bprm);
 240}
 241
 242void security_bprm_committing_creds(struct linux_binprm *bprm)
 243{
 244        security_ops->bprm_committing_creds(bprm);
 245}
 246
 247void security_bprm_committed_creds(struct linux_binprm *bprm)
 248{
 249        security_ops->bprm_committed_creds(bprm);
 250}
 251
 252int security_bprm_secureexec(struct linux_binprm *bprm)
 253{
 254        return security_ops->bprm_secureexec(bprm);
 255}
 256
 257int security_sb_alloc(struct super_block *sb)
 258{
 259        return security_ops->sb_alloc_security(sb);
 260}
 261
 262void security_sb_free(struct super_block *sb)
 263{
 264        security_ops->sb_free_security(sb);
 265}
 266
 267int security_sb_copy_data(char *orig, char *copy)
 268{
 269        return security_ops->sb_copy_data(orig, copy);
 270}
 271EXPORT_SYMBOL(security_sb_copy_data);
 272
 273int security_sb_remount(struct super_block *sb, void *data)
 274{
 275        return security_ops->sb_remount(sb, data);
 276}
 277
 278int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 279{
 280        return security_ops->sb_kern_mount(sb, flags, data);
 281}
 282
 283int security_sb_show_options(struct seq_file *m, struct super_block *sb)
 284{
 285        return security_ops->sb_show_options(m, sb);
 286}
 287
 288int security_sb_statfs(struct dentry *dentry)
 289{
 290        return security_ops->sb_statfs(dentry);
 291}
 292
 293int security_sb_mount(char *dev_name, struct path *path,
 294                       char *type, unsigned long flags, void *data)
 295{
 296        return security_ops->sb_mount(dev_name, path, type, flags, data);
 297}
 298
 299int security_sb_umount(struct vfsmount *mnt, int flags)
 300{
 301        return security_ops->sb_umount(mnt, flags);
 302}
 303
 304int security_sb_pivotroot(struct path *old_path, struct path *new_path)
 305{
 306        return security_ops->sb_pivotroot(old_path, new_path);
 307}
 308
 309int security_sb_set_mnt_opts(struct super_block *sb,
 310                                struct security_mnt_opts *opts)
 311{
 312        return security_ops->sb_set_mnt_opts(sb, opts);
 313}
 314EXPORT_SYMBOL(security_sb_set_mnt_opts);
 315
 316void security_sb_clone_mnt_opts(const struct super_block *oldsb,
 317                                struct super_block *newsb)
 318{
 319        security_ops->sb_clone_mnt_opts(oldsb, newsb);
 320}
 321EXPORT_SYMBOL(security_sb_clone_mnt_opts);
 322
 323int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
 324{
 325        return security_ops->sb_parse_opts_str(options, opts);
 326}
 327EXPORT_SYMBOL(security_sb_parse_opts_str);
 328
 329int security_inode_alloc(struct inode *inode)
 330{
 331        inode->i_security = NULL;
 332        return security_ops->inode_alloc_security(inode);
 333}
 334
 335void security_inode_free(struct inode *inode)
 336{
 337        ima_inode_free(inode);
 338        security_ops->inode_free_security(inode);
 339}
 340
 341int security_inode_init_security(struct inode *inode, struct inode *dir,
 342                                 const struct qstr *qstr, char **name,
 343                                 void **value, size_t *len)
 344{
 345        if (unlikely(IS_PRIVATE(inode)))
 346                return -EOPNOTSUPP;
 347        return security_ops->inode_init_security(inode, dir, qstr, name, value,
 348                                                 len);
 349}
 350EXPORT_SYMBOL(security_inode_init_security);
 351
 352#ifdef CONFIG_SECURITY_PATH
 353int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 354                        unsigned int dev)
 355{
 356        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 357                return 0;
 358        return security_ops->path_mknod(dir, dentry, mode, dev);
 359}
 360EXPORT_SYMBOL(security_path_mknod);
 361
 362int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
 363{
 364        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 365                return 0;
 366        return security_ops->path_mkdir(dir, dentry, mode);
 367}
 368EXPORT_SYMBOL(security_path_mkdir);
 369
 370int security_path_rmdir(struct path *dir, struct dentry *dentry)
 371{
 372        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 373                return 0;
 374        return security_ops->path_rmdir(dir, dentry);
 375}
 376
 377int security_path_unlink(struct path *dir, struct dentry *dentry)
 378{
 379        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 380                return 0;
 381        return security_ops->path_unlink(dir, dentry);
 382}
 383EXPORT_SYMBOL(security_path_unlink);
 384
 385int security_path_symlink(struct path *dir, struct dentry *dentry,
 386                          const char *old_name)
 387{
 388        if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
 389                return 0;
 390        return security_ops->path_symlink(dir, dentry, old_name);
 391}
 392
 393int security_path_link(struct dentry *old_dentry, struct path *new_dir,
 394                       struct dentry *new_dentry)
 395{
 396        if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 397                return 0;
 398        return security_ops->path_link(old_dentry, new_dir, new_dentry);
 399}
 400
 401int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
 402                         struct path *new_dir, struct dentry *new_dentry)
 403{
 404        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 405                     (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 406                return 0;
 407        return security_ops->path_rename(old_dir, old_dentry, new_dir,
 408                                         new_dentry);
 409}
 410EXPORT_SYMBOL(security_path_rename);
 411
 412int security_path_truncate(struct path *path)
 413{
 414        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 415                return 0;
 416        return security_ops->path_truncate(path);
 417}
 418
 419int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
 420                        mode_t mode)
 421{
 422        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 423                return 0;
 424        return security_ops->path_chmod(dentry, mnt, mode);
 425}
 426
 427int security_path_chown(struct path *path, uid_t uid, gid_t gid)
 428{
 429        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
 430                return 0;
 431        return security_ops->path_chown(path, uid, gid);
 432}
 433
 434int security_path_chroot(struct path *path)
 435{
 436        return security_ops->path_chroot(path);
 437}
 438#endif
 439
 440int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
 441{
 442        if (unlikely(IS_PRIVATE(dir)))
 443                return 0;
 444        return security_ops->inode_create(dir, dentry, mode);
 445}
 446EXPORT_SYMBOL_GPL(security_inode_create);
 447
 448int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 449                         struct dentry *new_dentry)
 450{
 451        if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
 452                return 0;
 453        return security_ops->inode_link(old_dentry, dir, new_dentry);
 454}
 455
 456int security_inode_unlink(struct inode *dir, struct dentry *dentry)
 457{
 458        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 459                return 0;
 460        return security_ops->inode_unlink(dir, dentry);
 461}
 462
 463int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 464                            const char *old_name)
 465{
 466        if (unlikely(IS_PRIVATE(dir)))
 467                return 0;
 468        return security_ops->inode_symlink(dir, dentry, old_name);
 469}
 470
 471int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 472{
 473        if (unlikely(IS_PRIVATE(dir)))
 474                return 0;
 475        return security_ops->inode_mkdir(dir, dentry, mode);
 476}
 477EXPORT_SYMBOL_GPL(security_inode_mkdir);
 478
 479int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
 480{
 481        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 482                return 0;
 483        return security_ops->inode_rmdir(dir, dentry);
 484}
 485
 486int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 487{
 488        if (unlikely(IS_PRIVATE(dir)))
 489                return 0;
 490        return security_ops->inode_mknod(dir, dentry, mode, dev);
 491}
 492
 493int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 494                           struct inode *new_dir, struct dentry *new_dentry)
 495{
 496        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
 497            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
 498                return 0;
 499        return security_ops->inode_rename(old_dir, old_dentry,
 500                                           new_dir, new_dentry);
 501}
 502
 503int security_inode_readlink(struct dentry *dentry)
 504{
 505        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 506                return 0;
 507        return security_ops->inode_readlink(dentry);
 508}
 509
 510int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
 511{
 512        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 513                return 0;
 514        return security_ops->inode_follow_link(dentry, nd);
 515}
 516
 517int security_inode_permission(struct inode *inode, int mask)
 518{
 519        if (unlikely(IS_PRIVATE(inode)))
 520                return 0;
 521        return security_ops->inode_permission(inode, mask);
 522}
 523
 524int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
 525{
 526        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 527                return 0;
 528        return security_ops->inode_setattr(dentry, attr);
 529}
 530EXPORT_SYMBOL_GPL(security_inode_setattr);
 531
 532int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
 533{
 534        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 535                return 0;
 536        return security_ops->inode_getattr(mnt, dentry);
 537}
 538
 539int security_inode_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 0;
 544        return security_ops->inode_setxattr(dentry, name, value, size, flags);
 545}
 546
 547void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 548                                  const void *value, size_t size, int flags)
 549{
 550        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 551                return;
 552        security_ops->inode_post_setxattr(dentry, name, value, size, flags);
 553}
 554
 555int security_inode_getxattr(struct dentry *dentry, const char *name)
 556{
 557        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 558                return 0;
 559        return security_ops->inode_getxattr(dentry, name);
 560}
 561
 562int security_inode_listxattr(struct dentry *dentry)
 563{
 564        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 565                return 0;
 566        return security_ops->inode_listxattr(dentry);
 567}
 568
 569int security_inode_removexattr(struct dentry *dentry, const char *name)
 570{
 571        if (unlikely(IS_PRIVATE(dentry->d_inode)))
 572                return 0;
 573        return security_ops->inode_removexattr(dentry, name);
 574}
 575
 576int security_inode_need_killpriv(struct dentry *dentry)
 577{
 578        return security_ops->inode_need_killpriv(dentry);
 579}
 580
 581int security_inode_killpriv(struct dentry *dentry)
 582{
 583        return security_ops->inode_killpriv(dentry);
 584}
 585
 586int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
 587{
 588        if (unlikely(IS_PRIVATE(inode)))
 589                return -EOPNOTSUPP;
 590        return security_ops->inode_getsecurity(inode, name, buffer, alloc);
 591}
 592
 593int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 594{
 595        if (unlikely(IS_PRIVATE(inode)))
 596                return -EOPNOTSUPP;
 597        return security_ops->inode_setsecurity(inode, name, value, size, flags);
 598}
 599
 600int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 601{
 602        if (unlikely(IS_PRIVATE(inode)))
 603                return 0;
 604        return security_ops->inode_listsecurity(inode, buffer, buffer_size);
 605}
 606
 607void security_inode_getsecid(const struct inode *inode, u32 *secid)
 608{
 609        security_ops->inode_getsecid(inode, secid);
 610}
 611
 612int security_file_permission(struct file *file, int mask)
 613{
 614        int ret;
 615
 616        ret = security_ops->file_permission(file, mask);
 617        if (ret)
 618                return ret;
 619
 620        return fsnotify_perm(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        int ret;
 643
 644        ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
 645        if (ret)
 646                return ret;
 647        return ima_file_mmap(file, prot);
 648}
 649
 650int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 651                            unsigned long prot)
 652{
 653        return security_ops->file_mprotect(vma, reqprot, prot);
 654}
 655
 656int security_file_lock(struct file *file, unsigned int cmd)
 657{
 658        return security_ops->file_lock(file, cmd);
 659}
 660
 661int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
 662{
 663        return security_ops->file_fcntl(file, cmd, arg);
 664}
 665
 666int security_file_set_fowner(struct file *file)
 667{
 668        return security_ops->file_set_fowner(file);
 669}
 670
 671int security_file_send_sigiotask(struct task_struct *tsk,
 672                                  struct fown_struct *fown, int sig)
 673{
 674        return security_ops->file_send_sigiotask(tsk, fown, sig);
 675}
 676
 677int security_file_receive(struct file *file)
 678{
 679        return security_ops->file_receive(file);
 680}
 681
 682int security_dentry_open(struct file *file, const struct cred *cred)
 683{
 684        int ret;
 685
 686        ret = security_ops->dentry_open(file, cred);
 687        if (ret)
 688                return ret;
 689
 690        return fsnotify_perm(file, MAY_OPEN);
 691}
 692
 693int security_task_create(unsigned long clone_flags)
 694{
 695        return security_ops->task_create(clone_flags);
 696}
 697
 698int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
 699{
 700        return security_ops->cred_alloc_blank(cred, gfp);
 701}
 702
 703void security_cred_free(struct cred *cred)
 704{
 705        security_ops->cred_free(cred);
 706}
 707
 708int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
 709{
 710        return security_ops->cred_prepare(new, old, gfp);
 711}
 712
 713void security_transfer_creds(struct cred *new, const struct cred *old)
 714{
 715        security_ops->cred_transfer(new, old);
 716}
 717
 718int security_kernel_act_as(struct cred *new, u32 secid)
 719{
 720        return security_ops->kernel_act_as(new, secid);
 721}
 722
 723int security_kernel_create_files_as(struct cred *new, struct inode *inode)
 724{
 725        return security_ops->kernel_create_files_as(new, inode);
 726}
 727
 728int security_kernel_module_request(char *kmod_name)
 729{
 730        return security_ops->kernel_module_request(kmod_name);
 731}
 732
 733int security_task_fix_setuid(struct cred *new, const struct cred *old,
 734                             int flags)
 735{
 736        return security_ops->task_fix_setuid(new, old, flags);
 737}
 738
 739int security_task_setpgid(struct task_struct *p, pid_t pgid)
 740{
 741        return security_ops->task_setpgid(p, pgid);
 742}
 743
 744int security_task_getpgid(struct task_struct *p)
 745{
 746        return security_ops->task_getpgid(p);
 747}
 748
 749int security_task_getsid(struct task_struct *p)
 750{
 751        return security_ops->task_getsid(p);
 752}
 753
 754void security_task_getsecid(struct task_struct *p, u32 *secid)
 755{
 756        security_ops->task_getsecid(p, secid);
 757}
 758EXPORT_SYMBOL(security_task_getsecid);
 759
 760int security_task_setnice(struct task_struct *p, int nice)
 761{
 762        return security_ops->task_setnice(p, nice);
 763}
 764
 765int security_task_setioprio(struct task_struct *p, int ioprio)
 766{
 767        return security_ops->task_setioprio(p, ioprio);
 768}
 769
 770int security_task_getioprio(struct task_struct *p)
 771{
 772        return security_ops->task_getioprio(p);
 773}
 774
 775int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 776                struct rlimit *new_rlim)
 777{
 778        return security_ops->task_setrlimit(p, resource, new_rlim);
 779}
 780
 781int security_task_setscheduler(struct task_struct *p)
 782{
 783        return security_ops->task_setscheduler(p);
 784}
 785
 786int security_task_getscheduler(struct task_struct *p)
 787{
 788        return security_ops->task_getscheduler(p);
 789}
 790
 791int security_task_movememory(struct task_struct *p)
 792{
 793        return security_ops->task_movememory(p);
 794}
 795
 796int security_task_kill(struct task_struct *p, struct siginfo *info,
 797                        int sig, u32 secid)
 798{
 799        return security_ops->task_kill(p, info, sig, secid);
 800}
 801
 802int security_task_wait(struct task_struct *p)
 803{
 804        return security_ops->task_wait(p);
 805}
 806
 807int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 808                         unsigned long arg4, unsigned long arg5)
 809{
 810        return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
 811}
 812
 813void security_task_to_inode(struct task_struct *p, struct inode *inode)
 814{
 815        security_ops->task_to_inode(p, inode);
 816}
 817
 818int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
 819{
 820        return security_ops->ipc_permission(ipcp, flag);
 821}
 822
 823void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
 824{
 825        security_ops->ipc_getsecid(ipcp, secid);
 826}
 827
 828int security_msg_msg_alloc(struct msg_msg *msg)
 829{
 830        return security_ops->msg_msg_alloc_security(msg);
 831}
 832
 833void security_msg_msg_free(struct msg_msg *msg)
 834{
 835        security_ops->msg_msg_free_security(msg);
 836}
 837
 838int security_msg_queue_alloc(struct msg_queue *msq)
 839{
 840        return security_ops->msg_queue_alloc_security(msq);
 841}
 842
 843void security_msg_queue_free(struct msg_queue *msq)
 844{
 845        security_ops->msg_queue_free_security(msq);
 846}
 847
 848int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
 849{
 850        return security_ops->msg_queue_associate(msq, msqflg);
 851}
 852
 853int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
 854{
 855        return security_ops->msg_queue_msgctl(msq, cmd);
 856}
 857
 858int security_msg_queue_msgsnd(struct msg_queue *msq,
 859                               struct msg_msg *msg, int msqflg)
 860{
 861        return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
 862}
 863
 864int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 865                               struct task_struct *target, long type, int mode)
 866{
 867        return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
 868}
 869
 870int security_shm_alloc(struct shmid_kernel *shp)
 871{
 872        return security_ops->shm_alloc_security(shp);
 873}
 874
 875void security_shm_free(struct shmid_kernel *shp)
 876{
 877        security_ops->shm_free_security(shp);
 878}
 879
 880int security_shm_associate(struct shmid_kernel *shp, int shmflg)
 881{
 882        return security_ops->shm_associate(shp, shmflg);
 883}
 884
 885int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
 886{
 887        return security_ops->shm_shmctl(shp, cmd);
 888}
 889
 890int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
 891{
 892        return security_ops->shm_shmat(shp, shmaddr, shmflg);
 893}
 894
 895int security_sem_alloc(struct sem_array *sma)
 896{
 897        return security_ops->sem_alloc_security(sma);
 898}
 899
 900void security_sem_free(struct sem_array *sma)
 901{
 902        security_ops->sem_free_security(sma);
 903}
 904
 905int security_sem_associate(struct sem_array *sma, int semflg)
 906{
 907        return security_ops->sem_associate(sma, semflg);
 908}
 909
 910int security_sem_semctl(struct sem_array *sma, int cmd)
 911{
 912        return security_ops->sem_semctl(sma, cmd);
 913}
 914
 915int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
 916                        unsigned nsops, int alter)
 917{
 918        return security_ops->sem_semop(sma, sops, nsops, alter);
 919}
 920
 921void security_d_instantiate(struct dentry *dentry, struct inode *inode)
 922{
 923        if (unlikely(inode && IS_PRIVATE(inode)))
 924                return;
 925        security_ops->d_instantiate(dentry, inode);
 926}
 927EXPORT_SYMBOL(security_d_instantiate);
 928
 929int security_getprocattr(struct task_struct *p, char *name, char **value)
 930{
 931        return security_ops->getprocattr(p, name, value);
 932}
 933
 934int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
 935{
 936        return security_ops->setprocattr(p, name, value, size);
 937}
 938
 939int security_netlink_send(struct sock *sk, struct sk_buff *skb)
 940{
 941        return security_ops->netlink_send(sk, skb);
 942}
 943
 944int security_netlink_recv(struct sk_buff *skb, int cap)
 945{
 946        return security_ops->netlink_recv(skb, cap);
 947}
 948EXPORT_SYMBOL(security_netlink_recv);
 949
 950int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
 951{
 952        return security_ops->secid_to_secctx(secid, secdata, seclen);
 953}
 954EXPORT_SYMBOL(security_secid_to_secctx);
 955
 956int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
 957{
 958        return security_ops->secctx_to_secid(secdata, seclen, secid);
 959}
 960EXPORT_SYMBOL(security_secctx_to_secid);
 961
 962void security_release_secctx(char *secdata, u32 seclen)
 963{
 964        security_ops->release_secctx(secdata, seclen);
 965}
 966EXPORT_SYMBOL(security_release_secctx);
 967
 968int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
 969{
 970        return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
 971}
 972EXPORT_SYMBOL(security_inode_notifysecctx);
 973
 974int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
 975{
 976        return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
 977}
 978EXPORT_SYMBOL(security_inode_setsecctx);
 979
 980int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 981{
 982        return security_ops->inode_getsecctx(inode, ctx, ctxlen);
 983}
 984EXPORT_SYMBOL(security_inode_getsecctx);
 985
 986#ifdef CONFIG_SECURITY_NETWORK
 987
 988int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
 989{
 990        return security_ops->unix_stream_connect(sock, other, newsk);
 991}
 992EXPORT_SYMBOL(security_unix_stream_connect);
 993
 994int security_unix_may_send(struct socket *sock,  struct socket *other)
 995{
 996        return security_ops->unix_may_send(sock, other);
 997}
 998EXPORT_SYMBOL(security_unix_may_send);
 999
1000int security_socket_create(int family, int type, int protocol, int kern)
1001{
1002        return security_ops->socket_create(family, type, protocol, kern);
1003}
1004
1005int security_socket_post_create(struct socket *sock, int family,
1006                                int type, int protocol, int kern)
1007{
1008        return security_ops->socket_post_create(sock, family, type,
1009                                                protocol, kern);
1010}
1011
1012int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1013{
1014        return security_ops->socket_bind(sock, address, addrlen);
1015}
1016
1017int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1018{
1019        return security_ops->socket_connect(sock, address, addrlen);
1020}
1021
1022int security_socket_listen(struct socket *sock, int backlog)
1023{
1024        return security_ops->socket_listen(sock, backlog);
1025}
1026
1027int security_socket_accept(struct socket *sock, struct socket *newsock)
1028{
1029        return security_ops->socket_accept(sock, newsock);
1030}
1031
1032int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1033{
1034        return security_ops->socket_sendmsg(sock, msg, size);
1035}
1036
1037int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1038                            int size, int flags)
1039{
1040        return security_ops->socket_recvmsg(sock, msg, size, flags);
1041}
1042
1043int security_socket_getsockname(struct socket *sock)
1044{
1045        return security_ops->socket_getsockname(sock);
1046}
1047
1048int security_socket_getpeername(struct socket *sock)
1049{
1050        return security_ops->socket_getpeername(sock);
1051}
1052
1053int security_socket_getsockopt(struct socket *sock, int level, int optname)
1054{
1055        return security_ops->socket_getsockopt(sock, level, optname);
1056}
1057
1058int security_socket_setsockopt(struct socket *sock, int level, int optname)
1059{
1060        return security_ops->socket_setsockopt(sock, level, optname);
1061}
1062
1063int security_socket_shutdown(struct socket *sock, int how)
1064{
1065        return security_ops->socket_shutdown(sock, how);
1066}
1067
1068int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1069{
1070        return security_ops->socket_sock_rcv_skb(sk, skb);
1071}
1072EXPORT_SYMBOL(security_sock_rcv_skb);
1073
1074int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1075                                      int __user *optlen, unsigned len)
1076{
1077        return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1078}
1079
1080int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1081{
1082        return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1083}
1084EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1085
1086int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1087{
1088        return security_ops->sk_alloc_security(sk, family, priority);
1089}
1090
1091void security_sk_free(struct sock *sk)
1092{
1093        security_ops->sk_free_security(sk);
1094}
1095
1096void security_sk_clone(const struct sock *sk, struct sock *newsk)
1097{
1098        security_ops->sk_clone_security(sk, newsk);
1099}
1100EXPORT_SYMBOL(security_sk_clone);
1101
1102void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1103{
1104        security_ops->sk_getsecid(sk, &fl->flowi_secid);
1105}
1106EXPORT_SYMBOL(security_sk_classify_flow);
1107
1108void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1109{
1110        security_ops->req_classify_flow(req, fl);
1111}
1112EXPORT_SYMBOL(security_req_classify_flow);
1113
1114void security_sock_graft(struct sock *sk, struct socket *parent)
1115{
1116        security_ops->sock_graft(sk, parent);
1117}
1118EXPORT_SYMBOL(security_sock_graft);
1119
1120int security_inet_conn_request(struct sock *sk,
1121                        struct sk_buff *skb, struct request_sock *req)
1122{
1123        return security_ops->inet_conn_request(sk, skb, req);
1124}
1125EXPORT_SYMBOL(security_inet_conn_request);
1126
1127void security_inet_csk_clone(struct sock *newsk,
1128                        const struct request_sock *req)
1129{
1130        security_ops->inet_csk_clone(newsk, req);
1131}
1132
1133void security_inet_conn_established(struct sock *sk,
1134                        struct sk_buff *skb)
1135{
1136        security_ops->inet_conn_established(sk, skb);
1137}
1138
1139int security_secmark_relabel_packet(u32 secid)
1140{
1141        return security_ops->secmark_relabel_packet(secid);
1142}
1143EXPORT_SYMBOL(security_secmark_relabel_packet);
1144
1145void security_secmark_refcount_inc(void)
1146{
1147        security_ops->secmark_refcount_inc();
1148}
1149EXPORT_SYMBOL(security_secmark_refcount_inc);
1150
1151void security_secmark_refcount_dec(void)
1152{
1153        security_ops->secmark_refcount_dec();
1154}
1155EXPORT_SYMBOL(security_secmark_refcount_dec);
1156
1157int security_tun_dev_create(void)
1158{
1159        return security_ops->tun_dev_create();
1160}
1161EXPORT_SYMBOL(security_tun_dev_create);
1162
1163void security_tun_dev_post_create(struct sock *sk)
1164{
1165        return security_ops->tun_dev_post_create(sk);
1166}
1167EXPORT_SYMBOL(security_tun_dev_post_create);
1168
1169int security_tun_dev_attach(struct sock *sk)
1170{
1171        return security_ops->tun_dev_attach(sk);
1172}
1173EXPORT_SYMBOL(security_tun_dev_attach);
1174
1175#endif  /* CONFIG_SECURITY_NETWORK */
1176
1177#ifdef CONFIG_SECURITY_NETWORK_XFRM
1178
1179int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1180{
1181        return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1182}
1183EXPORT_SYMBOL(security_xfrm_policy_alloc);
1184
1185int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1186                              struct xfrm_sec_ctx **new_ctxp)
1187{
1188        return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1189}
1190
1191void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1192{
1193        security_ops->xfrm_policy_free_security(ctx);
1194}
1195EXPORT_SYMBOL(security_xfrm_policy_free);
1196
1197int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1198{
1199        return security_ops->xfrm_policy_delete_security(ctx);
1200}
1201
1202int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1203{
1204        return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1205}
1206EXPORT_SYMBOL(security_xfrm_state_alloc);
1207
1208int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1209                                      struct xfrm_sec_ctx *polsec, u32 secid)
1210{
1211        if (!polsec)
1212                return 0;
1213        /*
1214         * We want the context to be taken from secid which is usually
1215         * from the sock.
1216         */
1217        return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1218}
1219
1220int security_xfrm_state_delete(struct xfrm_state *x)
1221{
1222        return security_ops->xfrm_state_delete_security(x);
1223}
1224EXPORT_SYMBOL(security_xfrm_state_delete);
1225
1226void security_xfrm_state_free(struct xfrm_state *x)
1227{
1228        security_ops->xfrm_state_free_security(x);
1229}
1230
1231int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1232{
1233        return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1234}
1235
1236int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1237                                       struct xfrm_policy *xp,
1238                                       const struct flowi *fl)
1239{
1240        return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1241}
1242
1243int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1244{
1245        return security_ops->xfrm_decode_session(skb, secid, 1);
1246}
1247
1248void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1249{
1250        int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1251
1252        BUG_ON(rc);
1253}
1254EXPORT_SYMBOL(security_skb_classify_flow);
1255
1256#endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1257
1258#ifdef CONFIG_KEYS
1259
1260int security_key_alloc(struct key *key, const struct cred *cred,
1261                       unsigned long flags)
1262{
1263        return security_ops->key_alloc(key, cred, flags);
1264}
1265
1266void security_key_free(struct key *key)
1267{
1268        security_ops->key_free(key);
1269}
1270
1271int security_key_permission(key_ref_t key_ref,
1272                            const struct cred *cred, key_perm_t perm)
1273{
1274        return security_ops->key_permission(key_ref, cred, perm);
1275}
1276
1277int security_key_getsecurity(struct key *key, char **_buffer)
1278{
1279        return security_ops->key_getsecurity(key, _buffer);
1280}
1281
1282#endif  /* CONFIG_KEYS */
1283
1284#ifdef CONFIG_AUDIT
1285
1286int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1287{
1288        return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1289}
1290
1291int security_audit_rule_known(struct audit_krule *krule)
1292{
1293        return security_ops->audit_rule_known(krule);
1294}
1295
1296void security_audit_rule_free(void *lsmrule)
1297{
1298        security_ops->audit_rule_free(lsmrule);
1299}
1300
1301int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1302                              struct audit_context *actx)
1303{
1304        return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1305}
1306
1307#endif /* CONFIG_AUDIT */
1308
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