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0001 /*
0002  * Security plug functions
0003  *
0004  * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
0005  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
0006  * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
0007  *
0008  *  This program is free software; you can redistribute it and/or modify
0009  *  it under the terms of the GNU General Public License as published by
0010  *  the Free Software Foundation; either version 2 of the License, or
0011  *  (at your option) any later version.
0012  */
0013 
0014 #include <linux/capability.h>
0015 #include <linux/dcache.h>
0016 #include <linux/module.h>
0017 #include <linux/init.h>
0018 #include <linux/kernel.h>
0019 #include <linux/lsm_hooks.h>
0020 #include <linux/integrity.h>
0021 #include <linux/ima.h>
0022 #include <linux/evm.h>
0023 #include <linux/fsnotify.h>
0024 #include <linux/mman.h>
0025 #include <linux/mount.h>
0026 #include <linux/personality.h>
0027 #include <linux/backing-dev.h>
0028 #include <net/flow.h>
0029 
0030 #define MAX_LSM_EVM_XATTR   2
0031 
0032 /* Maximum number of letters for an LSM name string */
0033 #define SECURITY_NAME_MAX   10
0034 
0035 /* Boot-time LSM user choice */
0036 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
0037     CONFIG_DEFAULT_SECURITY;
0038 
0039 static void __init do_security_initcalls(void)
0040 {
0041     initcall_t *call;
0042     call = __security_initcall_start;
0043     while (call < __security_initcall_end) {
0044         (*call) ();
0045         call++;
0046     }
0047 }
0048 
0049 /**
0050  * security_init - initializes the security framework
0051  *
0052  * This should be called early in the kernel initialization sequence.
0053  */
0054 int __init security_init(void)
0055 {
0056     pr_info("Security Framework initialized\n");
0057 
0058     /*
0059      * Load minor LSMs, with the capability module always first.
0060      */
0061     capability_add_hooks();
0062     yama_add_hooks();
0063     loadpin_add_hooks();
0064 
0065     /*
0066      * Load all the remaining security modules.
0067      */
0068     do_security_initcalls();
0069 
0070     return 0;
0071 }
0072 
0073 /* Save user chosen LSM */
0074 static int __init choose_lsm(char *str)
0075 {
0076     strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
0077     return 1;
0078 }
0079 __setup("security=", choose_lsm);
0080 
0081 /**
0082  * security_module_enable - Load given security module on boot ?
0083  * @module: the name of the module
0084  *
0085  * Each LSM must pass this method before registering its own operations
0086  * to avoid security registration races. This method may also be used
0087  * to check if your LSM is currently loaded during kernel initialization.
0088  *
0089  * Return true if:
0090  *  -The passed LSM is the one chosen by user at boot time,
0091  *  -or the passed LSM is configured as the default and the user did not
0092  *   choose an alternate LSM at boot time.
0093  * Otherwise, return false.
0094  */
0095 int __init security_module_enable(const char *module)
0096 {
0097     return !strcmp(module, chosen_lsm);
0098 }
0099 
0100 /*
0101  * Hook list operation macros.
0102  *
0103  * call_void_hook:
0104  *  This is a hook that does not return a value.
0105  *
0106  * call_int_hook:
0107  *  This is a hook that returns a value.
0108  */
0109 
0110 #define call_void_hook(FUNC, ...)               \
0111     do {                            \
0112         struct security_hook_list *P;           \
0113                                 \
0114         list_for_each_entry(P, &security_hook_heads.FUNC, list) \
0115             P->hook.FUNC(__VA_ARGS__);      \
0116     } while (0)
0117 
0118 #define call_int_hook(FUNC, IRC, ...) ({            \
0119     int RC = IRC;                       \
0120     do {                            \
0121         struct security_hook_list *P;           \
0122                                 \
0123         list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
0124             RC = P->hook.FUNC(__VA_ARGS__);     \
0125             if (RC != 0)                \
0126                 break;              \
0127         }                       \
0128     } while (0);                        \
0129     RC;                         \
0130 })
0131 
0132 /* Security operations */
0133 
0134 int security_binder_set_context_mgr(struct task_struct *mgr)
0135 {
0136     return call_int_hook(binder_set_context_mgr, 0, mgr);
0137 }
0138 
0139 int security_binder_transaction(struct task_struct *from,
0140                 struct task_struct *to)
0141 {
0142     return call_int_hook(binder_transaction, 0, from, to);
0143 }
0144 
0145 int security_binder_transfer_binder(struct task_struct *from,
0146                     struct task_struct *to)
0147 {
0148     return call_int_hook(binder_transfer_binder, 0, from, to);
0149 }
0150 
0151 int security_binder_transfer_file(struct task_struct *from,
0152                   struct task_struct *to, struct file *file)
0153 {
0154     return call_int_hook(binder_transfer_file, 0, from, to, file);
0155 }
0156 
0157 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
0158 {
0159     return call_int_hook(ptrace_access_check, 0, child, mode);
0160 }
0161 
0162 int security_ptrace_traceme(struct task_struct *parent)
0163 {
0164     return call_int_hook(ptrace_traceme, 0, parent);
0165 }
0166 
0167 int security_capget(struct task_struct *target,
0168              kernel_cap_t *effective,
0169              kernel_cap_t *inheritable,
0170              kernel_cap_t *permitted)
0171 {
0172     return call_int_hook(capget, 0, target,
0173                 effective, inheritable, permitted);
0174 }
0175 
0176 int security_capset(struct cred *new, const struct cred *old,
0177             const kernel_cap_t *effective,
0178             const kernel_cap_t *inheritable,
0179             const kernel_cap_t *permitted)
0180 {
0181     return call_int_hook(capset, 0, new, old,
0182                 effective, inheritable, permitted);
0183 }
0184 
0185 int security_capable(const struct cred *cred, struct user_namespace *ns,
0186              int cap)
0187 {
0188     return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT);
0189 }
0190 
0191 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
0192                  int cap)
0193 {
0194     return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT);
0195 }
0196 
0197 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
0198 {
0199     return call_int_hook(quotactl, 0, cmds, type, id, sb);
0200 }
0201 
0202 int security_quota_on(struct dentry *dentry)
0203 {
0204     return call_int_hook(quota_on, 0, dentry);
0205 }
0206 
0207 int security_syslog(int type)
0208 {
0209     return call_int_hook(syslog, 0, type);
0210 }
0211 
0212 int security_settime64(const struct timespec64 *ts, const struct timezone *tz)
0213 {
0214     return call_int_hook(settime, 0, ts, tz);
0215 }
0216 
0217 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
0218 {
0219     struct security_hook_list *hp;
0220     int cap_sys_admin = 1;
0221     int rc;
0222 
0223     /*
0224      * The module will respond with a positive value if
0225      * it thinks the __vm_enough_memory() call should be
0226      * made with the cap_sys_admin set. If all of the modules
0227      * agree that it should be set it will. If any module
0228      * thinks it should not be set it won't.
0229      */
0230     list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) {
0231         rc = hp->hook.vm_enough_memory(mm, pages);
0232         if (rc <= 0) {
0233             cap_sys_admin = 0;
0234             break;
0235         }
0236     }
0237     return __vm_enough_memory(mm, pages, cap_sys_admin);
0238 }
0239 
0240 int security_bprm_set_creds(struct linux_binprm *bprm)
0241 {
0242     return call_int_hook(bprm_set_creds, 0, bprm);
0243 }
0244 
0245 int security_bprm_check(struct linux_binprm *bprm)
0246 {
0247     int ret;
0248 
0249     ret = call_int_hook(bprm_check_security, 0, bprm);
0250     if (ret)
0251         return ret;
0252     return ima_bprm_check(bprm);
0253 }
0254 
0255 void security_bprm_committing_creds(struct linux_binprm *bprm)
0256 {
0257     call_void_hook(bprm_committing_creds, bprm);
0258 }
0259 
0260 void security_bprm_committed_creds(struct linux_binprm *bprm)
0261 {
0262     call_void_hook(bprm_committed_creds, bprm);
0263 }
0264 
0265 int security_bprm_secureexec(struct linux_binprm *bprm)
0266 {
0267     return call_int_hook(bprm_secureexec, 0, bprm);
0268 }
0269 
0270 int security_sb_alloc(struct super_block *sb)
0271 {
0272     return call_int_hook(sb_alloc_security, 0, sb);
0273 }
0274 
0275 void security_sb_free(struct super_block *sb)
0276 {
0277     call_void_hook(sb_free_security, sb);
0278 }
0279 
0280 int security_sb_copy_data(char *orig, char *copy)
0281 {
0282     return call_int_hook(sb_copy_data, 0, orig, copy);
0283 }
0284 EXPORT_SYMBOL(security_sb_copy_data);
0285 
0286 int security_sb_remount(struct super_block *sb, void *data)
0287 {
0288     return call_int_hook(sb_remount, 0, sb, data);
0289 }
0290 
0291 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
0292 {
0293     return call_int_hook(sb_kern_mount, 0, sb, flags, data);
0294 }
0295 
0296 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
0297 {
0298     return call_int_hook(sb_show_options, 0, m, sb);
0299 }
0300 
0301 int security_sb_statfs(struct dentry *dentry)
0302 {
0303     return call_int_hook(sb_statfs, 0, dentry);
0304 }
0305 
0306 int security_sb_mount(const char *dev_name, const struct path *path,
0307                        const char *type, unsigned long flags, void *data)
0308 {
0309     return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data);
0310 }
0311 
0312 int security_sb_umount(struct vfsmount *mnt, int flags)
0313 {
0314     return call_int_hook(sb_umount, 0, mnt, flags);
0315 }
0316 
0317 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path)
0318 {
0319     return call_int_hook(sb_pivotroot, 0, old_path, new_path);
0320 }
0321 
0322 int security_sb_set_mnt_opts(struct super_block *sb,
0323                 struct security_mnt_opts *opts,
0324                 unsigned long kern_flags,
0325                 unsigned long *set_kern_flags)
0326 {
0327     return call_int_hook(sb_set_mnt_opts,
0328                 opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb,
0329                 opts, kern_flags, set_kern_flags);
0330 }
0331 EXPORT_SYMBOL(security_sb_set_mnt_opts);
0332 
0333 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
0334                 struct super_block *newsb)
0335 {
0336     return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb);
0337 }
0338 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
0339 
0340 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
0341 {
0342     return call_int_hook(sb_parse_opts_str, 0, options, opts);
0343 }
0344 EXPORT_SYMBOL(security_sb_parse_opts_str);
0345 
0346 int security_inode_alloc(struct inode *inode)
0347 {
0348     inode->i_security = NULL;
0349     return call_int_hook(inode_alloc_security, 0, inode);
0350 }
0351 
0352 void security_inode_free(struct inode *inode)
0353 {
0354     integrity_inode_free(inode);
0355     call_void_hook(inode_free_security, inode);
0356 }
0357 
0358 int security_dentry_init_security(struct dentry *dentry, int mode,
0359                     const struct qstr *name, void **ctx,
0360                     u32 *ctxlen)
0361 {
0362     return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode,
0363                 name, ctx, ctxlen);
0364 }
0365 EXPORT_SYMBOL(security_dentry_init_security);
0366 
0367 int security_dentry_create_files_as(struct dentry *dentry, int mode,
0368                     struct qstr *name,
0369                     const struct cred *old, struct cred *new)
0370 {
0371     return call_int_hook(dentry_create_files_as, 0, dentry, mode,
0372                 name, old, new);
0373 }
0374 EXPORT_SYMBOL(security_dentry_create_files_as);
0375 
0376 int security_inode_init_security(struct inode *inode, struct inode *dir,
0377                  const struct qstr *qstr,
0378                  const initxattrs initxattrs, void *fs_data)
0379 {
0380     struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
0381     struct xattr *lsm_xattr, *evm_xattr, *xattr;
0382     int ret;
0383 
0384     if (unlikely(IS_PRIVATE(inode)))
0385         return 0;
0386 
0387     if (!initxattrs)
0388         return call_int_hook(inode_init_security, -EOPNOTSUPP, inode,
0389                      dir, qstr, NULL, NULL, NULL);
0390     memset(new_xattrs, 0, sizeof(new_xattrs));
0391     lsm_xattr = new_xattrs;
0392     ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr,
0393                         &lsm_xattr->name,
0394                         &lsm_xattr->value,
0395                         &lsm_xattr->value_len);
0396     if (ret)
0397         goto out;
0398 
0399     evm_xattr = lsm_xattr + 1;
0400     ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
0401     if (ret)
0402         goto out;
0403     ret = initxattrs(inode, new_xattrs, fs_data);
0404 out:
0405     for (xattr = new_xattrs; xattr->value != NULL; xattr++)
0406         kfree(xattr->value);
0407     return (ret == -EOPNOTSUPP) ? 0 : ret;
0408 }
0409 EXPORT_SYMBOL(security_inode_init_security);
0410 
0411 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
0412                      const struct qstr *qstr, const char **name,
0413                      void **value, size_t *len)
0414 {
0415     if (unlikely(IS_PRIVATE(inode)))
0416         return -EOPNOTSUPP;
0417     return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir,
0418                  qstr, name, value, len);
0419 }
0420 EXPORT_SYMBOL(security_old_inode_init_security);
0421 
0422 #ifdef CONFIG_SECURITY_PATH
0423 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
0424             unsigned int dev)
0425 {
0426     if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
0427         return 0;
0428     return call_int_hook(path_mknod, 0, dir, dentry, mode, dev);
0429 }
0430 EXPORT_SYMBOL(security_path_mknod);
0431 
0432 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode)
0433 {
0434     if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
0435         return 0;
0436     return call_int_hook(path_mkdir, 0, dir, dentry, mode);
0437 }
0438 EXPORT_SYMBOL(security_path_mkdir);
0439 
0440 int security_path_rmdir(const struct path *dir, struct dentry *dentry)
0441 {
0442     if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
0443         return 0;
0444     return call_int_hook(path_rmdir, 0, dir, dentry);
0445 }
0446 
0447 int security_path_unlink(const struct path *dir, struct dentry *dentry)
0448 {
0449     if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
0450         return 0;
0451     return call_int_hook(path_unlink, 0, dir, dentry);
0452 }
0453 EXPORT_SYMBOL(security_path_unlink);
0454 
0455 int security_path_symlink(const struct path *dir, struct dentry *dentry,
0456               const char *old_name)
0457 {
0458     if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry))))
0459         return 0;
0460     return call_int_hook(path_symlink, 0, dir, dentry, old_name);
0461 }
0462 
0463 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
0464                struct dentry *new_dentry)
0465 {
0466     if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
0467         return 0;
0468     return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
0469 }
0470 
0471 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
0472              const struct path *new_dir, struct dentry *new_dentry,
0473              unsigned int flags)
0474 {
0475     if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
0476              (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
0477         return 0;
0478 
0479     if (flags & RENAME_EXCHANGE) {
0480         int err = call_int_hook(path_rename, 0, new_dir, new_dentry,
0481                     old_dir, old_dentry);
0482         if (err)
0483             return err;
0484     }
0485 
0486     return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir,
0487                 new_dentry);
0488 }
0489 EXPORT_SYMBOL(security_path_rename);
0490 
0491 int security_path_truncate(const struct path *path)
0492 {
0493     if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
0494         return 0;
0495     return call_int_hook(path_truncate, 0, path);
0496 }
0497 
0498 int security_path_chmod(const struct path *path, umode_t mode)
0499 {
0500     if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
0501         return 0;
0502     return call_int_hook(path_chmod, 0, path, mode);
0503 }
0504 
0505 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
0506 {
0507     if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
0508         return 0;
0509     return call_int_hook(path_chown, 0, path, uid, gid);
0510 }
0511 
0512 int security_path_chroot(const struct path *path)
0513 {
0514     return call_int_hook(path_chroot, 0, path);
0515 }
0516 #endif
0517 
0518 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
0519 {
0520     if (unlikely(IS_PRIVATE(dir)))
0521         return 0;
0522     return call_int_hook(inode_create, 0, dir, dentry, mode);
0523 }
0524 EXPORT_SYMBOL_GPL(security_inode_create);
0525 
0526 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
0527              struct dentry *new_dentry)
0528 {
0529     if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry))))
0530         return 0;
0531     return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry);
0532 }
0533 
0534 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
0535 {
0536     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0537         return 0;
0538     return call_int_hook(inode_unlink, 0, dir, dentry);
0539 }
0540 
0541 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
0542                 const char *old_name)
0543 {
0544     if (unlikely(IS_PRIVATE(dir)))
0545         return 0;
0546     return call_int_hook(inode_symlink, 0, dir, dentry, old_name);
0547 }
0548 
0549 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
0550 {
0551     if (unlikely(IS_PRIVATE(dir)))
0552         return 0;
0553     return call_int_hook(inode_mkdir, 0, dir, dentry, mode);
0554 }
0555 EXPORT_SYMBOL_GPL(security_inode_mkdir);
0556 
0557 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
0558 {
0559     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0560         return 0;
0561     return call_int_hook(inode_rmdir, 0, dir, dentry);
0562 }
0563 
0564 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
0565 {
0566     if (unlikely(IS_PRIVATE(dir)))
0567         return 0;
0568     return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev);
0569 }
0570 
0571 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
0572                struct inode *new_dir, struct dentry *new_dentry,
0573                unsigned int flags)
0574 {
0575         if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) ||
0576             (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry)))))
0577         return 0;
0578 
0579     if (flags & RENAME_EXCHANGE) {
0580         int err = call_int_hook(inode_rename, 0, new_dir, new_dentry,
0581                              old_dir, old_dentry);
0582         if (err)
0583             return err;
0584     }
0585 
0586     return call_int_hook(inode_rename, 0, old_dir, old_dentry,
0587                        new_dir, new_dentry);
0588 }
0589 
0590 int security_inode_readlink(struct dentry *dentry)
0591 {
0592     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0593         return 0;
0594     return call_int_hook(inode_readlink, 0, dentry);
0595 }
0596 
0597 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
0598                    bool rcu)
0599 {
0600     if (unlikely(IS_PRIVATE(inode)))
0601         return 0;
0602     return call_int_hook(inode_follow_link, 0, dentry, inode, rcu);
0603 }
0604 
0605 int security_inode_permission(struct inode *inode, int mask)
0606 {
0607     if (unlikely(IS_PRIVATE(inode)))
0608         return 0;
0609     return call_int_hook(inode_permission, 0, inode, mask);
0610 }
0611 
0612 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
0613 {
0614     int ret;
0615 
0616     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0617         return 0;
0618     ret = call_int_hook(inode_setattr, 0, dentry, attr);
0619     if (ret)
0620         return ret;
0621     return evm_inode_setattr(dentry, attr);
0622 }
0623 EXPORT_SYMBOL_GPL(security_inode_setattr);
0624 
0625 int security_inode_getattr(const struct path *path)
0626 {
0627     if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry))))
0628         return 0;
0629     return call_int_hook(inode_getattr, 0, path);
0630 }
0631 
0632 int security_inode_setxattr(struct dentry *dentry, const char *name,
0633                 const void *value, size_t size, int flags)
0634 {
0635     int ret;
0636 
0637     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0638         return 0;
0639     /*
0640      * SELinux and Smack integrate the cap call,
0641      * so assume that all LSMs supplying this call do so.
0642      */
0643     ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size,
0644                 flags);
0645 
0646     if (ret == 1)
0647         ret = cap_inode_setxattr(dentry, name, value, size, flags);
0648     if (ret)
0649         return ret;
0650     ret = ima_inode_setxattr(dentry, name, value, size);
0651     if (ret)
0652         return ret;
0653     return evm_inode_setxattr(dentry, name, value, size);
0654 }
0655 
0656 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
0657                   const void *value, size_t size, int flags)
0658 {
0659     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0660         return;
0661     call_void_hook(inode_post_setxattr, dentry, name, value, size, flags);
0662     evm_inode_post_setxattr(dentry, name, value, size);
0663 }
0664 
0665 int security_inode_getxattr(struct dentry *dentry, const char *name)
0666 {
0667     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0668         return 0;
0669     return call_int_hook(inode_getxattr, 0, dentry, name);
0670 }
0671 
0672 int security_inode_listxattr(struct dentry *dentry)
0673 {
0674     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0675         return 0;
0676     return call_int_hook(inode_listxattr, 0, dentry);
0677 }
0678 
0679 int security_inode_removexattr(struct dentry *dentry, const char *name)
0680 {
0681     int ret;
0682 
0683     if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
0684         return 0;
0685     /*
0686      * SELinux and Smack integrate the cap call,
0687      * so assume that all LSMs supplying this call do so.
0688      */
0689     ret = call_int_hook(inode_removexattr, 1, dentry, name);
0690     if (ret == 1)
0691         ret = cap_inode_removexattr(dentry, name);
0692     if (ret)
0693         return ret;
0694     ret = ima_inode_removexattr(dentry, name);
0695     if (ret)
0696         return ret;
0697     return evm_inode_removexattr(dentry, name);
0698 }
0699 
0700 int security_inode_need_killpriv(struct dentry *dentry)
0701 {
0702     return call_int_hook(inode_need_killpriv, 0, dentry);
0703 }
0704 
0705 int security_inode_killpriv(struct dentry *dentry)
0706 {
0707     return call_int_hook(inode_killpriv, 0, dentry);
0708 }
0709 
0710 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
0711 {
0712     struct security_hook_list *hp;
0713     int rc;
0714 
0715     if (unlikely(IS_PRIVATE(inode)))
0716         return -EOPNOTSUPP;
0717     /*
0718      * Only one module will provide an attribute with a given name.
0719      */
0720     list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
0721         rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
0722         if (rc != -EOPNOTSUPP)
0723             return rc;
0724     }
0725     return -EOPNOTSUPP;
0726 }
0727 
0728 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
0729 {
0730     struct security_hook_list *hp;
0731     int rc;
0732 
0733     if (unlikely(IS_PRIVATE(inode)))
0734         return -EOPNOTSUPP;
0735     /*
0736      * Only one module will provide an attribute with a given name.
0737      */
0738     list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
0739         rc = hp->hook.inode_setsecurity(inode, name, value, size,
0740                                 flags);
0741         if (rc != -EOPNOTSUPP)
0742             return rc;
0743     }
0744     return -EOPNOTSUPP;
0745 }
0746 
0747 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
0748 {
0749     if (unlikely(IS_PRIVATE(inode)))
0750         return 0;
0751     return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size);
0752 }
0753 EXPORT_SYMBOL(security_inode_listsecurity);
0754 
0755 void security_inode_getsecid(struct inode *inode, u32 *secid)
0756 {
0757     call_void_hook(inode_getsecid, inode, secid);
0758 }
0759 
0760 int security_inode_copy_up(struct dentry *src, struct cred **new)
0761 {
0762     return call_int_hook(inode_copy_up, 0, src, new);
0763 }
0764 EXPORT_SYMBOL(security_inode_copy_up);
0765 
0766 int security_inode_copy_up_xattr(const char *name)
0767 {
0768     return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name);
0769 }
0770 EXPORT_SYMBOL(security_inode_copy_up_xattr);
0771 
0772 int security_file_permission(struct file *file, int mask)
0773 {
0774     int ret;
0775 
0776     ret = call_int_hook(file_permission, 0, file, mask);
0777     if (ret)
0778         return ret;
0779 
0780     return fsnotify_perm(file, mask);
0781 }
0782 
0783 int security_file_alloc(struct file *file)
0784 {
0785     return call_int_hook(file_alloc_security, 0, file);
0786 }
0787 
0788 void security_file_free(struct file *file)
0789 {
0790     call_void_hook(file_free_security, file);
0791 }
0792 
0793 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
0794 {
0795     return call_int_hook(file_ioctl, 0, file, cmd, arg);
0796 }
0797 
0798 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
0799 {
0800     /*
0801      * Does we have PROT_READ and does the application expect
0802      * it to imply PROT_EXEC?  If not, nothing to talk about...
0803      */
0804     if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
0805         return prot;
0806     if (!(current->personality & READ_IMPLIES_EXEC))
0807         return prot;
0808     /*
0809      * if that's an anonymous mapping, let it.
0810      */
0811     if (!file)
0812         return prot | PROT_EXEC;
0813     /*
0814      * ditto if it's not on noexec mount, except that on !MMU we need
0815      * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
0816      */
0817     if (!path_noexec(&file->f_path)) {
0818 #ifndef CONFIG_MMU
0819         if (file->f_op->mmap_capabilities) {
0820             unsigned caps = file->f_op->mmap_capabilities(file);
0821             if (!(caps & NOMMU_MAP_EXEC))
0822                 return prot;
0823         }
0824 #endif
0825         return prot | PROT_EXEC;
0826     }
0827     /* anything on noexec mount won't get PROT_EXEC */
0828     return prot;
0829 }
0830 
0831 int security_mmap_file(struct file *file, unsigned long prot,
0832             unsigned long flags)
0833 {
0834     int ret;
0835     ret = call_int_hook(mmap_file, 0, file, prot,
0836                     mmap_prot(file, prot), flags);
0837     if (ret)
0838         return ret;
0839     return ima_file_mmap(file, prot);
0840 }
0841 
0842 int security_mmap_addr(unsigned long addr)
0843 {
0844     return call_int_hook(mmap_addr, 0, addr);
0845 }
0846 
0847 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
0848                 unsigned long prot)
0849 {
0850     return call_int_hook(file_mprotect, 0, vma, reqprot, prot);
0851 }
0852 
0853 int security_file_lock(struct file *file, unsigned int cmd)
0854 {
0855     return call_int_hook(file_lock, 0, file, cmd);
0856 }
0857 
0858 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
0859 {
0860     return call_int_hook(file_fcntl, 0, file, cmd, arg);
0861 }
0862 
0863 void security_file_set_fowner(struct file *file)
0864 {
0865     call_void_hook(file_set_fowner, file);
0866 }
0867 
0868 int security_file_send_sigiotask(struct task_struct *tsk,
0869                   struct fown_struct *fown, int sig)
0870 {
0871     return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig);
0872 }
0873 
0874 int security_file_receive(struct file *file)
0875 {
0876     return call_int_hook(file_receive, 0, file);
0877 }
0878 
0879 int security_file_open(struct file *file, const struct cred *cred)
0880 {
0881     int ret;
0882 
0883     ret = call_int_hook(file_open, 0, file, cred);
0884     if (ret)
0885         return ret;
0886 
0887     return fsnotify_perm(file, MAY_OPEN);
0888 }
0889 
0890 int security_task_create(unsigned long clone_flags)
0891 {
0892     return call_int_hook(task_create, 0, clone_flags);
0893 }
0894 
0895 void security_task_free(struct task_struct *task)
0896 {
0897     call_void_hook(task_free, task);
0898 }
0899 
0900 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
0901 {
0902     return call_int_hook(cred_alloc_blank, 0, cred, gfp);
0903 }
0904 
0905 void security_cred_free(struct cred *cred)
0906 {
0907     call_void_hook(cred_free, cred);
0908 }
0909 
0910 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
0911 {
0912     return call_int_hook(cred_prepare, 0, new, old, gfp);
0913 }
0914 
0915 void security_transfer_creds(struct cred *new, const struct cred *old)
0916 {
0917     call_void_hook(cred_transfer, new, old);
0918 }
0919 
0920 int security_kernel_act_as(struct cred *new, u32 secid)
0921 {
0922     return call_int_hook(kernel_act_as, 0, new, secid);
0923 }
0924 
0925 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
0926 {
0927     return call_int_hook(kernel_create_files_as, 0, new, inode);
0928 }
0929 
0930 int security_kernel_module_request(char *kmod_name)
0931 {
0932     return call_int_hook(kernel_module_request, 0, kmod_name);
0933 }
0934 
0935 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id)
0936 {
0937     int ret;
0938 
0939     ret = call_int_hook(kernel_read_file, 0, file, id);
0940     if (ret)
0941         return ret;
0942     return ima_read_file(file, id);
0943 }
0944 EXPORT_SYMBOL_GPL(security_kernel_read_file);
0945 
0946 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
0947                    enum kernel_read_file_id id)
0948 {
0949     int ret;
0950 
0951     ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id);
0952     if (ret)
0953         return ret;
0954     return ima_post_read_file(file, buf, size, id);
0955 }
0956 EXPORT_SYMBOL_GPL(security_kernel_post_read_file);
0957 
0958 int security_task_fix_setuid(struct cred *new, const struct cred *old,
0959                  int flags)
0960 {
0961     return call_int_hook(task_fix_setuid, 0, new, old, flags);
0962 }
0963 
0964 int security_task_setpgid(struct task_struct *p, pid_t pgid)
0965 {
0966     return call_int_hook(task_setpgid, 0, p, pgid);
0967 }
0968 
0969 int security_task_getpgid(struct task_struct *p)
0970 {
0971     return call_int_hook(task_getpgid, 0, p);
0972 }
0973 
0974 int security_task_getsid(struct task_struct *p)
0975 {
0976     return call_int_hook(task_getsid, 0, p);
0977 }
0978 
0979 void security_task_getsecid(struct task_struct *p, u32 *secid)
0980 {
0981     *secid = 0;
0982     call_void_hook(task_getsecid, p, secid);
0983 }
0984 EXPORT_SYMBOL(security_task_getsecid);
0985 
0986 int security_task_setnice(struct task_struct *p, int nice)
0987 {
0988     return call_int_hook(task_setnice, 0, p, nice);
0989 }
0990 
0991 int security_task_setioprio(struct task_struct *p, int ioprio)
0992 {
0993     return call_int_hook(task_setioprio, 0, p, ioprio);
0994 }
0995 
0996 int security_task_getioprio(struct task_struct *p)
0997 {
0998     return call_int_hook(task_getioprio, 0, p);
0999 }
1000 
1001 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1002         struct rlimit *new_rlim)
1003 {
1004     return call_int_hook(task_setrlimit, 0, p, resource, new_rlim);
1005 }
1006 
1007 int security_task_setscheduler(struct task_struct *p)
1008 {
1009     return call_int_hook(task_setscheduler, 0, p);
1010 }
1011 
1012 int security_task_getscheduler(struct task_struct *p)
1013 {
1014     return call_int_hook(task_getscheduler, 0, p);
1015 }
1016 
1017 int security_task_movememory(struct task_struct *p)
1018 {
1019     return call_int_hook(task_movememory, 0, p);
1020 }
1021 
1022 int security_task_kill(struct task_struct *p, struct siginfo *info,
1023             int sig, u32 secid)
1024 {
1025     return call_int_hook(task_kill, 0, p, info, sig, secid);
1026 }
1027 
1028 int security_task_wait(struct task_struct *p)
1029 {
1030     return call_int_hook(task_wait, 0, p);
1031 }
1032 
1033 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1034              unsigned long arg4, unsigned long arg5)
1035 {
1036     int thisrc;
1037     int rc = -ENOSYS;
1038     struct security_hook_list *hp;
1039 
1040     list_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1041         thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1042         if (thisrc != -ENOSYS) {
1043             rc = thisrc;
1044             if (thisrc != 0)
1045                 break;
1046         }
1047     }
1048     return rc;
1049 }
1050 
1051 void security_task_to_inode(struct task_struct *p, struct inode *inode)
1052 {
1053     call_void_hook(task_to_inode, p, inode);
1054 }
1055 
1056 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
1057 {
1058     return call_int_hook(ipc_permission, 0, ipcp, flag);
1059 }
1060 
1061 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1062 {
1063     *secid = 0;
1064     call_void_hook(ipc_getsecid, ipcp, secid);
1065 }
1066 
1067 int security_msg_msg_alloc(struct msg_msg *msg)
1068 {
1069     return call_int_hook(msg_msg_alloc_security, 0, msg);
1070 }
1071 
1072 void security_msg_msg_free(struct msg_msg *msg)
1073 {
1074     call_void_hook(msg_msg_free_security, msg);
1075 }
1076 
1077 int security_msg_queue_alloc(struct msg_queue *msq)
1078 {
1079     return call_int_hook(msg_queue_alloc_security, 0, msq);
1080 }
1081 
1082 void security_msg_queue_free(struct msg_queue *msq)
1083 {
1084     call_void_hook(msg_queue_free_security, msq);
1085 }
1086 
1087 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
1088 {
1089     return call_int_hook(msg_queue_associate, 0, msq, msqflg);
1090 }
1091 
1092 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1093 {
1094     return call_int_hook(msg_queue_msgctl, 0, msq, cmd);
1095 }
1096 
1097 int security_msg_queue_msgsnd(struct msg_queue *msq,
1098                    struct msg_msg *msg, int msqflg)
1099 {
1100     return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg);
1101 }
1102 
1103 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1104                    struct task_struct *target, long type, int mode)
1105 {
1106     return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode);
1107 }
1108 
1109 int security_shm_alloc(struct shmid_kernel *shp)
1110 {
1111     return call_int_hook(shm_alloc_security, 0, shp);
1112 }
1113 
1114 void security_shm_free(struct shmid_kernel *shp)
1115 {
1116     call_void_hook(shm_free_security, shp);
1117 }
1118 
1119 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
1120 {
1121     return call_int_hook(shm_associate, 0, shp, shmflg);
1122 }
1123 
1124 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1125 {
1126     return call_int_hook(shm_shmctl, 0, shp, cmd);
1127 }
1128 
1129 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
1130 {
1131     return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg);
1132 }
1133 
1134 int security_sem_alloc(struct sem_array *sma)
1135 {
1136     return call_int_hook(sem_alloc_security, 0, sma);
1137 }
1138 
1139 void security_sem_free(struct sem_array *sma)
1140 {
1141     call_void_hook(sem_free_security, sma);
1142 }
1143 
1144 int security_sem_associate(struct sem_array *sma, int semflg)
1145 {
1146     return call_int_hook(sem_associate, 0, sma, semflg);
1147 }
1148 
1149 int security_sem_semctl(struct sem_array *sma, int cmd)
1150 {
1151     return call_int_hook(sem_semctl, 0, sma, cmd);
1152 }
1153 
1154 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1155             unsigned nsops, int alter)
1156 {
1157     return call_int_hook(sem_semop, 0, sma, sops, nsops, alter);
1158 }
1159 
1160 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1161 {
1162     if (unlikely(inode && IS_PRIVATE(inode)))
1163         return;
1164     call_void_hook(d_instantiate, dentry, inode);
1165 }
1166 EXPORT_SYMBOL(security_d_instantiate);
1167 
1168 int security_getprocattr(struct task_struct *p, char *name, char **value)
1169 {
1170     return call_int_hook(getprocattr, -EINVAL, p, name, value);
1171 }
1172 
1173 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1174 {
1175     return call_int_hook(setprocattr, -EINVAL, p, name, value, size);
1176 }
1177 
1178 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1179 {
1180     return call_int_hook(netlink_send, 0, sk, skb);
1181 }
1182 
1183 int security_ismaclabel(const char *name)
1184 {
1185     return call_int_hook(ismaclabel, 0, name);
1186 }
1187 EXPORT_SYMBOL(security_ismaclabel);
1188 
1189 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1190 {
1191     return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata,
1192                 seclen);
1193 }
1194 EXPORT_SYMBOL(security_secid_to_secctx);
1195 
1196 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1197 {
1198     *secid = 0;
1199     return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid);
1200 }
1201 EXPORT_SYMBOL(security_secctx_to_secid);
1202 
1203 void security_release_secctx(char *secdata, u32 seclen)
1204 {
1205     call_void_hook(release_secctx, secdata, seclen);
1206 }
1207 EXPORT_SYMBOL(security_release_secctx);
1208 
1209 void security_inode_invalidate_secctx(struct inode *inode)
1210 {
1211     call_void_hook(inode_invalidate_secctx, inode);
1212 }
1213 EXPORT_SYMBOL(security_inode_invalidate_secctx);
1214 
1215 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1216 {
1217     return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen);
1218 }
1219 EXPORT_SYMBOL(security_inode_notifysecctx);
1220 
1221 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1222 {
1223     return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen);
1224 }
1225 EXPORT_SYMBOL(security_inode_setsecctx);
1226 
1227 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1228 {
1229     return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen);
1230 }
1231 EXPORT_SYMBOL(security_inode_getsecctx);
1232 
1233 #ifdef CONFIG_SECURITY_NETWORK
1234 
1235 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1236 {
1237     return call_int_hook(unix_stream_connect, 0, sock, other, newsk);
1238 }
1239 EXPORT_SYMBOL(security_unix_stream_connect);
1240 
1241 int security_unix_may_send(struct socket *sock,  struct socket *other)
1242 {
1243     return call_int_hook(unix_may_send, 0, sock, other);
1244 }
1245 EXPORT_SYMBOL(security_unix_may_send);
1246 
1247 int security_socket_create(int family, int type, int protocol, int kern)
1248 {
1249     return call_int_hook(socket_create, 0, family, type, protocol, kern);
1250 }
1251 
1252 int security_socket_post_create(struct socket *sock, int family,
1253                 int type, int protocol, int kern)
1254 {
1255     return call_int_hook(socket_post_create, 0, sock, family, type,
1256                         protocol, kern);
1257 }
1258 
1259 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1260 {
1261     return call_int_hook(socket_bind, 0, sock, address, addrlen);
1262 }
1263 
1264 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1265 {
1266     return call_int_hook(socket_connect, 0, sock, address, addrlen);
1267 }
1268 
1269 int security_socket_listen(struct socket *sock, int backlog)
1270 {
1271     return call_int_hook(socket_listen, 0, sock, backlog);
1272 }
1273 
1274 int security_socket_accept(struct socket *sock, struct socket *newsock)
1275 {
1276     return call_int_hook(socket_accept, 0, sock, newsock);
1277 }
1278 
1279 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1280 {
1281     return call_int_hook(socket_sendmsg, 0, sock, msg, size);
1282 }
1283 
1284 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1285                 int size, int flags)
1286 {
1287     return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags);
1288 }
1289 
1290 int security_socket_getsockname(struct socket *sock)
1291 {
1292     return call_int_hook(socket_getsockname, 0, sock);
1293 }
1294 
1295 int security_socket_getpeername(struct socket *sock)
1296 {
1297     return call_int_hook(socket_getpeername, 0, sock);
1298 }
1299 
1300 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1301 {
1302     return call_int_hook(socket_getsockopt, 0, sock, level, optname);
1303 }
1304 
1305 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1306 {
1307     return call_int_hook(socket_setsockopt, 0, sock, level, optname);
1308 }
1309 
1310 int security_socket_shutdown(struct socket *sock, int how)
1311 {
1312     return call_int_hook(socket_shutdown, 0, sock, how);
1313 }
1314 
1315 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1316 {
1317     return call_int_hook(socket_sock_rcv_skb, 0, sk, skb);
1318 }
1319 EXPORT_SYMBOL(security_sock_rcv_skb);
1320 
1321 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1322                       int __user *optlen, unsigned len)
1323 {
1324     return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock,
1325                 optval, optlen, len);
1326 }
1327 
1328 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1329 {
1330     return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock,
1331                  skb, secid);
1332 }
1333 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1334 
1335 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1336 {
1337     return call_int_hook(sk_alloc_security, 0, sk, family, priority);
1338 }
1339 
1340 void security_sk_free(struct sock *sk)
1341 {
1342     call_void_hook(sk_free_security, sk);
1343 }
1344 
1345 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1346 {
1347     call_void_hook(sk_clone_security, sk, newsk);
1348 }
1349 EXPORT_SYMBOL(security_sk_clone);
1350 
1351 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1352 {
1353     call_void_hook(sk_getsecid, sk, &fl->flowi_secid);
1354 }
1355 EXPORT_SYMBOL(security_sk_classify_flow);
1356 
1357 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1358 {
1359     call_void_hook(req_classify_flow, req, fl);
1360 }
1361 EXPORT_SYMBOL(security_req_classify_flow);
1362 
1363 void security_sock_graft(struct sock *sk, struct socket *parent)
1364 {
1365     call_void_hook(sock_graft, sk, parent);
1366 }
1367 EXPORT_SYMBOL(security_sock_graft);
1368 
1369 int security_inet_conn_request(struct sock *sk,
1370             struct sk_buff *skb, struct request_sock *req)
1371 {
1372     return call_int_hook(inet_conn_request, 0, sk, skb, req);
1373 }
1374 EXPORT_SYMBOL(security_inet_conn_request);
1375 
1376 void security_inet_csk_clone(struct sock *newsk,
1377             const struct request_sock *req)
1378 {
1379     call_void_hook(inet_csk_clone, newsk, req);
1380 }
1381 
1382 void security_inet_conn_established(struct sock *sk,
1383             struct sk_buff *skb)
1384 {
1385     call_void_hook(inet_conn_established, sk, skb);
1386 }
1387 
1388 int security_secmark_relabel_packet(u32 secid)
1389 {
1390     return call_int_hook(secmark_relabel_packet, 0, secid);
1391 }
1392 EXPORT_SYMBOL(security_secmark_relabel_packet);
1393 
1394 void security_secmark_refcount_inc(void)
1395 {
1396     call_void_hook(secmark_refcount_inc);
1397 }
1398 EXPORT_SYMBOL(security_secmark_refcount_inc);
1399 
1400 void security_secmark_refcount_dec(void)
1401 {
1402     call_void_hook(secmark_refcount_dec);
1403 }
1404 EXPORT_SYMBOL(security_secmark_refcount_dec);
1405 
1406 int security_tun_dev_alloc_security(void **security)
1407 {
1408     return call_int_hook(tun_dev_alloc_security, 0, security);
1409 }
1410 EXPORT_SYMBOL(security_tun_dev_alloc_security);
1411 
1412 void security_tun_dev_free_security(void *security)
1413 {
1414     call_void_hook(tun_dev_free_security, security);
1415 }
1416 EXPORT_SYMBOL(security_tun_dev_free_security);
1417 
1418 int security_tun_dev_create(void)
1419 {
1420     return call_int_hook(tun_dev_create, 0);
1421 }
1422 EXPORT_SYMBOL(security_tun_dev_create);
1423 
1424 int security_tun_dev_attach_queue(void *security)
1425 {
1426     return call_int_hook(tun_dev_attach_queue, 0, security);
1427 }
1428 EXPORT_SYMBOL(security_tun_dev_attach_queue);
1429 
1430 int security_tun_dev_attach(struct sock *sk, void *security)
1431 {
1432     return call_int_hook(tun_dev_attach, 0, sk, security);
1433 }
1434 EXPORT_SYMBOL(security_tun_dev_attach);
1435 
1436 int security_tun_dev_open(void *security)
1437 {
1438     return call_int_hook(tun_dev_open, 0, security);
1439 }
1440 EXPORT_SYMBOL(security_tun_dev_open);
1441 
1442 #endif  /* CONFIG_SECURITY_NETWORK */
1443 
1444 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1445 
1446 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1447                    struct xfrm_user_sec_ctx *sec_ctx,
1448                    gfp_t gfp)
1449 {
1450     return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp);
1451 }
1452 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1453 
1454 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1455                   struct xfrm_sec_ctx **new_ctxp)
1456 {
1457     return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp);
1458 }
1459 
1460 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1461 {
1462     call_void_hook(xfrm_policy_free_security, ctx);
1463 }
1464 EXPORT_SYMBOL(security_xfrm_policy_free);
1465 
1466 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1467 {
1468     return call_int_hook(xfrm_policy_delete_security, 0, ctx);
1469 }
1470 
1471 int security_xfrm_state_alloc(struct xfrm_state *x,
1472                   struct xfrm_user_sec_ctx *sec_ctx)
1473 {
1474     return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx);
1475 }
1476 EXPORT_SYMBOL(security_xfrm_state_alloc);
1477 
1478 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1479                       struct xfrm_sec_ctx *polsec, u32 secid)
1480 {
1481     return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid);
1482 }
1483 
1484 int security_xfrm_state_delete(struct xfrm_state *x)
1485 {
1486     return call_int_hook(xfrm_state_delete_security, 0, x);
1487 }
1488 EXPORT_SYMBOL(security_xfrm_state_delete);
1489 
1490 void security_xfrm_state_free(struct xfrm_state *x)
1491 {
1492     call_void_hook(xfrm_state_free_security, x);
1493 }
1494 
1495 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1496 {
1497     return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir);
1498 }
1499 
1500 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1501                        struct xfrm_policy *xp,
1502                        const struct flowi *fl)
1503 {
1504     struct security_hook_list *hp;
1505     int rc = 1;
1506 
1507     /*
1508      * Since this function is expected to return 0 or 1, the judgment
1509      * becomes difficult if multiple LSMs supply this call. Fortunately,
1510      * we can use the first LSM's judgment because currently only SELinux
1511      * supplies this call.
1512      *
1513      * For speed optimization, we explicitly break the loop rather than
1514      * using the macro
1515      */
1516     list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match,
1517                 list) {
1518         rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl);
1519         break;
1520     }
1521     return rc;
1522 }
1523 
1524 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1525 {
1526     return call_int_hook(xfrm_decode_session, 0, skb, secid, 1);
1527 }
1528 
1529 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1530 {
1531     int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid,
1532                 0);
1533 
1534     BUG_ON(rc);
1535 }
1536 EXPORT_SYMBOL(security_skb_classify_flow);
1537 
1538 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1539 
1540 #ifdef CONFIG_KEYS
1541 
1542 int security_key_alloc(struct key *key, const struct cred *cred,
1543                unsigned long flags)
1544 {
1545     return call_int_hook(key_alloc, 0, key, cred, flags);
1546 }
1547 
1548 void security_key_free(struct key *key)
1549 {
1550     call_void_hook(key_free, key);
1551 }
1552 
1553 int security_key_permission(key_ref_t key_ref,
1554                 const struct cred *cred, unsigned perm)
1555 {
1556     return call_int_hook(key_permission, 0, key_ref, cred, perm);
1557 }
1558 
1559 int security_key_getsecurity(struct key *key, char **_buffer)
1560 {
1561     *_buffer = NULL;
1562     return call_int_hook(key_getsecurity, 0, key, _buffer);
1563 }
1564 
1565 #endif  /* CONFIG_KEYS */
1566 
1567 #ifdef CONFIG_AUDIT
1568 
1569 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1570 {
1571     return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule);
1572 }
1573 
1574 int security_audit_rule_known(struct audit_krule *krule)
1575 {
1576     return call_int_hook(audit_rule_known, 0, krule);
1577 }
1578 
1579 void security_audit_rule_free(void *lsmrule)
1580 {
1581     call_void_hook(audit_rule_free, lsmrule);
1582 }
1583 
1584 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1585                   struct audit_context *actx)
1586 {
1587     return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule,
1588                 actx);
1589 }
1590 #endif /* CONFIG_AUDIT */
1591 
1592 struct security_hook_heads security_hook_heads = {
1593     .binder_set_context_mgr =
1594         LIST_HEAD_INIT(security_hook_heads.binder_set_context_mgr),
1595     .binder_transaction =
1596         LIST_HEAD_INIT(security_hook_heads.binder_transaction),
1597     .binder_transfer_binder =
1598         LIST_HEAD_INIT(security_hook_heads.binder_transfer_binder),
1599     .binder_transfer_file =
1600         LIST_HEAD_INIT(security_hook_heads.binder_transfer_file),
1601 
1602     .ptrace_access_check =
1603         LIST_HEAD_INIT(security_hook_heads.ptrace_access_check),
1604     .ptrace_traceme =
1605         LIST_HEAD_INIT(security_hook_heads.ptrace_traceme),
1606     .capget =   LIST_HEAD_INIT(security_hook_heads.capget),
1607     .capset =   LIST_HEAD_INIT(security_hook_heads.capset),
1608     .capable =  LIST_HEAD_INIT(security_hook_heads.capable),
1609     .quotactl = LIST_HEAD_INIT(security_hook_heads.quotactl),
1610     .quota_on = LIST_HEAD_INIT(security_hook_heads.quota_on),
1611     .syslog =   LIST_HEAD_INIT(security_hook_heads.syslog),
1612     .settime =  LIST_HEAD_INIT(security_hook_heads.settime),
1613     .vm_enough_memory =
1614         LIST_HEAD_INIT(security_hook_heads.vm_enough_memory),
1615     .bprm_set_creds =
1616         LIST_HEAD_INIT(security_hook_heads.bprm_set_creds),
1617     .bprm_check_security =
1618         LIST_HEAD_INIT(security_hook_heads.bprm_check_security),
1619     .bprm_secureexec =
1620         LIST_HEAD_INIT(security_hook_heads.bprm_secureexec),
1621     .bprm_committing_creds =
1622         LIST_HEAD_INIT(security_hook_heads.bprm_committing_creds),
1623     .bprm_committed_creds =
1624         LIST_HEAD_INIT(security_hook_heads.bprm_committed_creds),
1625     .sb_alloc_security =
1626         LIST_HEAD_INIT(security_hook_heads.sb_alloc_security),
1627     .sb_free_security =
1628         LIST_HEAD_INIT(security_hook_heads.sb_free_security),
1629     .sb_copy_data = LIST_HEAD_INIT(security_hook_heads.sb_copy_data),
1630     .sb_remount =   LIST_HEAD_INIT(security_hook_heads.sb_remount),
1631     .sb_kern_mount =
1632         LIST_HEAD_INIT(security_hook_heads.sb_kern_mount),
1633     .sb_show_options =
1634         LIST_HEAD_INIT(security_hook_heads.sb_show_options),
1635     .sb_statfs =    LIST_HEAD_INIT(security_hook_heads.sb_statfs),
1636     .sb_mount = LIST_HEAD_INIT(security_hook_heads.sb_mount),
1637     .sb_umount =    LIST_HEAD_INIT(security_hook_heads.sb_umount),
1638     .sb_pivotroot = LIST_HEAD_INIT(security_hook_heads.sb_pivotroot),
1639     .sb_set_mnt_opts =
1640         LIST_HEAD_INIT(security_hook_heads.sb_set_mnt_opts),
1641     .sb_clone_mnt_opts =
1642         LIST_HEAD_INIT(security_hook_heads.sb_clone_mnt_opts),
1643     .sb_parse_opts_str =
1644         LIST_HEAD_INIT(security_hook_heads.sb_parse_opts_str),
1645     .dentry_init_security =
1646         LIST_HEAD_INIT(security_hook_heads.dentry_init_security),
1647     .dentry_create_files_as =
1648         LIST_HEAD_INIT(security_hook_heads.dentry_create_files_as),
1649 #ifdef CONFIG_SECURITY_PATH
1650     .path_unlink =  LIST_HEAD_INIT(security_hook_heads.path_unlink),
1651     .path_mkdir =   LIST_HEAD_INIT(security_hook_heads.path_mkdir),
1652     .path_rmdir =   LIST_HEAD_INIT(security_hook_heads.path_rmdir),
1653     .path_mknod =   LIST_HEAD_INIT(security_hook_heads.path_mknod),
1654     .path_truncate =
1655         LIST_HEAD_INIT(security_hook_heads.path_truncate),
1656     .path_symlink = LIST_HEAD_INIT(security_hook_heads.path_symlink),
1657     .path_link =    LIST_HEAD_INIT(security_hook_heads.path_link),
1658     .path_rename =  LIST_HEAD_INIT(security_hook_heads.path_rename),
1659     .path_chmod =   LIST_HEAD_INIT(security_hook_heads.path_chmod),
1660     .path_chown =   LIST_HEAD_INIT(security_hook_heads.path_chown),
1661     .path_chroot =  LIST_HEAD_INIT(security_hook_heads.path_chroot),
1662 #endif
1663     .inode_alloc_security =
1664         LIST_HEAD_INIT(security_hook_heads.inode_alloc_security),
1665     .inode_free_security =
1666         LIST_HEAD_INIT(security_hook_heads.inode_free_security),
1667     .inode_init_security =
1668         LIST_HEAD_INIT(security_hook_heads.inode_init_security),
1669     .inode_create = LIST_HEAD_INIT(security_hook_heads.inode_create),
1670     .inode_link =   LIST_HEAD_INIT(security_hook_heads.inode_link),
1671     .inode_unlink = LIST_HEAD_INIT(security_hook_heads.inode_unlink),
1672     .inode_symlink =
1673         LIST_HEAD_INIT(security_hook_heads.inode_symlink),
1674     .inode_mkdir =  LIST_HEAD_INIT(security_hook_heads.inode_mkdir),
1675     .inode_rmdir =  LIST_HEAD_INIT(security_hook_heads.inode_rmdir),
1676     .inode_mknod =  LIST_HEAD_INIT(security_hook_heads.inode_mknod),
1677     .inode_rename = LIST_HEAD_INIT(security_hook_heads.inode_rename),
1678     .inode_readlink =
1679         LIST_HEAD_INIT(security_hook_heads.inode_readlink),
1680     .inode_follow_link =
1681         LIST_HEAD_INIT(security_hook_heads.inode_follow_link),
1682     .inode_permission =
1683         LIST_HEAD_INIT(security_hook_heads.inode_permission),
1684     .inode_setattr =
1685         LIST_HEAD_INIT(security_hook_heads.inode_setattr),
1686     .inode_getattr =
1687         LIST_HEAD_INIT(security_hook_heads.inode_getattr),
1688     .inode_setxattr =
1689         LIST_HEAD_INIT(security_hook_heads.inode_setxattr),
1690     .inode_post_setxattr =
1691         LIST_HEAD_INIT(security_hook_heads.inode_post_setxattr),
1692     .inode_getxattr =
1693         LIST_HEAD_INIT(security_hook_heads.inode_getxattr),
1694     .inode_listxattr =
1695         LIST_HEAD_INIT(security_hook_heads.inode_listxattr),
1696     .inode_removexattr =
1697         LIST_HEAD_INIT(security_hook_heads.inode_removexattr),
1698     .inode_need_killpriv =
1699         LIST_HEAD_INIT(security_hook_heads.inode_need_killpriv),
1700     .inode_killpriv =
1701         LIST_HEAD_INIT(security_hook_heads.inode_killpriv),
1702     .inode_getsecurity =
1703         LIST_HEAD_INIT(security_hook_heads.inode_getsecurity),
1704     .inode_setsecurity =
1705         LIST_HEAD_INIT(security_hook_heads.inode_setsecurity),
1706     .inode_listsecurity =
1707         LIST_HEAD_INIT(security_hook_heads.inode_listsecurity),
1708     .inode_getsecid =
1709         LIST_HEAD_INIT(security_hook_heads.inode_getsecid),
1710     .inode_copy_up =
1711         LIST_HEAD_INIT(security_hook_heads.inode_copy_up),
1712     .inode_copy_up_xattr =
1713         LIST_HEAD_INIT(security_hook_heads.inode_copy_up_xattr),
1714     .file_permission =
1715         LIST_HEAD_INIT(security_hook_heads.file_permission),
1716     .file_alloc_security =
1717         LIST_HEAD_INIT(security_hook_heads.file_alloc_security),
1718     .file_free_security =
1719         LIST_HEAD_INIT(security_hook_heads.file_free_security),
1720     .file_ioctl =   LIST_HEAD_INIT(security_hook_heads.file_ioctl),
1721     .mmap_addr =    LIST_HEAD_INIT(security_hook_heads.mmap_addr),
1722     .mmap_file =    LIST_HEAD_INIT(security_hook_heads.mmap_file),
1723     .file_mprotect =
1724         LIST_HEAD_INIT(security_hook_heads.file_mprotect),
1725     .file_lock =    LIST_HEAD_INIT(security_hook_heads.file_lock),
1726     .file_fcntl =   LIST_HEAD_INIT(security_hook_heads.file_fcntl),
1727     .file_set_fowner =
1728         LIST_HEAD_INIT(security_hook_heads.file_set_fowner),
1729     .file_send_sigiotask =
1730         LIST_HEAD_INIT(security_hook_heads.file_send_sigiotask),
1731     .file_receive = LIST_HEAD_INIT(security_hook_heads.file_receive),
1732     .file_open =    LIST_HEAD_INIT(security_hook_heads.file_open),
1733     .task_create =  LIST_HEAD_INIT(security_hook_heads.task_create),
1734     .task_free =    LIST_HEAD_INIT(security_hook_heads.task_free),
1735     .cred_alloc_blank =
1736         LIST_HEAD_INIT(security_hook_heads.cred_alloc_blank),
1737     .cred_free =    LIST_HEAD_INIT(security_hook_heads.cred_free),
1738     .cred_prepare = LIST_HEAD_INIT(security_hook_heads.cred_prepare),
1739     .cred_transfer =
1740         LIST_HEAD_INIT(security_hook_heads.cred_transfer),
1741     .kernel_act_as =
1742         LIST_HEAD_INIT(security_hook_heads.kernel_act_as),
1743     .kernel_create_files_as =
1744         LIST_HEAD_INIT(security_hook_heads.kernel_create_files_as),
1745     .kernel_module_request =
1746         LIST_HEAD_INIT(security_hook_heads.kernel_module_request),
1747     .kernel_read_file =
1748         LIST_HEAD_INIT(security_hook_heads.kernel_read_file),
1749     .kernel_post_read_file =
1750         LIST_HEAD_INIT(security_hook_heads.kernel_post_read_file),
1751     .task_fix_setuid =
1752         LIST_HEAD_INIT(security_hook_heads.task_fix_setuid),
1753     .task_setpgid = LIST_HEAD_INIT(security_hook_heads.task_setpgid),
1754     .task_getpgid = LIST_HEAD_INIT(security_hook_heads.task_getpgid),
1755     .task_getsid =  LIST_HEAD_INIT(security_hook_heads.task_getsid),
1756     .task_getsecid =
1757         LIST_HEAD_INIT(security_hook_heads.task_getsecid),
1758     .task_setnice = LIST_HEAD_INIT(security_hook_heads.task_setnice),
1759     .task_setioprio =
1760         LIST_HEAD_INIT(security_hook_heads.task_setioprio),
1761     .task_getioprio =
1762         LIST_HEAD_INIT(security_hook_heads.task_getioprio),
1763     .task_setrlimit =
1764         LIST_HEAD_INIT(security_hook_heads.task_setrlimit),
1765     .task_setscheduler =
1766         LIST_HEAD_INIT(security_hook_heads.task_setscheduler),
1767     .task_getscheduler =
1768         LIST_HEAD_INIT(security_hook_heads.task_getscheduler),
1769     .task_movememory =
1770         LIST_HEAD_INIT(security_hook_heads.task_movememory),
1771     .task_kill =    LIST_HEAD_INIT(security_hook_heads.task_kill),
1772     .task_wait =    LIST_HEAD_INIT(security_hook_heads.task_wait),
1773     .task_prctl =   LIST_HEAD_INIT(security_hook_heads.task_prctl),
1774     .task_to_inode =
1775         LIST_HEAD_INIT(security_hook_heads.task_to_inode),
1776     .ipc_permission =
1777         LIST_HEAD_INIT(security_hook_heads.ipc_permission),
1778     .ipc_getsecid = LIST_HEAD_INIT(security_hook_heads.ipc_getsecid),
1779     .msg_msg_alloc_security =
1780         LIST_HEAD_INIT(security_hook_heads.msg_msg_alloc_security),
1781     .msg_msg_free_security =
1782         LIST_HEAD_INIT(security_hook_heads.msg_msg_free_security),
1783     .msg_queue_alloc_security =
1784         LIST_HEAD_INIT(security_hook_heads.msg_queue_alloc_security),
1785     .msg_queue_free_security =
1786         LIST_HEAD_INIT(security_hook_heads.msg_queue_free_security),
1787     .msg_queue_associate =
1788         LIST_HEAD_INIT(security_hook_heads.msg_queue_associate),
1789     .msg_queue_msgctl =
1790         LIST_HEAD_INIT(security_hook_heads.msg_queue_msgctl),
1791     .msg_queue_msgsnd =
1792         LIST_HEAD_INIT(security_hook_heads.msg_queue_msgsnd),
1793     .msg_queue_msgrcv =
1794         LIST_HEAD_INIT(security_hook_heads.msg_queue_msgrcv),
1795     .shm_alloc_security =
1796         LIST_HEAD_INIT(security_hook_heads.shm_alloc_security),
1797     .shm_free_security =
1798         LIST_HEAD_INIT(security_hook_heads.shm_free_security),
1799     .shm_associate =
1800         LIST_HEAD_INIT(security_hook_heads.shm_associate),
1801     .shm_shmctl =   LIST_HEAD_INIT(security_hook_heads.shm_shmctl),
1802     .shm_shmat =    LIST_HEAD_INIT(security_hook_heads.shm_shmat),
1803     .sem_alloc_security =
1804         LIST_HEAD_INIT(security_hook_heads.sem_alloc_security),
1805     .sem_free_security =
1806         LIST_HEAD_INIT(security_hook_heads.sem_free_security),
1807     .sem_associate =
1808         LIST_HEAD_INIT(security_hook_heads.sem_associate),
1809     .sem_semctl =   LIST_HEAD_INIT(security_hook_heads.sem_semctl),
1810     .sem_semop =    LIST_HEAD_INIT(security_hook_heads.sem_semop),
1811     .netlink_send = LIST_HEAD_INIT(security_hook_heads.netlink_send),
1812     .d_instantiate =
1813         LIST_HEAD_INIT(security_hook_heads.d_instantiate),
1814     .getprocattr =  LIST_HEAD_INIT(security_hook_heads.getprocattr),
1815     .setprocattr =  LIST_HEAD_INIT(security_hook_heads.setprocattr),
1816     .ismaclabel =   LIST_HEAD_INIT(security_hook_heads.ismaclabel),
1817     .secid_to_secctx =
1818         LIST_HEAD_INIT(security_hook_heads.secid_to_secctx),
1819     .secctx_to_secid =
1820         LIST_HEAD_INIT(security_hook_heads.secctx_to_secid),
1821     .release_secctx =
1822         LIST_HEAD_INIT(security_hook_heads.release_secctx),
1823     .inode_invalidate_secctx =
1824         LIST_HEAD_INIT(security_hook_heads.inode_invalidate_secctx),
1825     .inode_notifysecctx =
1826         LIST_HEAD_INIT(security_hook_heads.inode_notifysecctx),
1827     .inode_setsecctx =
1828         LIST_HEAD_INIT(security_hook_heads.inode_setsecctx),
1829     .inode_getsecctx =
1830         LIST_HEAD_INIT(security_hook_heads.inode_getsecctx),
1831 #ifdef CONFIG_SECURITY_NETWORK
1832     .unix_stream_connect =
1833         LIST_HEAD_INIT(security_hook_heads.unix_stream_connect),
1834     .unix_may_send =
1835         LIST_HEAD_INIT(security_hook_heads.unix_may_send),
1836     .socket_create =
1837         LIST_HEAD_INIT(security_hook_heads.socket_create),
1838     .socket_post_create =
1839         LIST_HEAD_INIT(security_hook_heads.socket_post_create),
1840     .socket_bind =  LIST_HEAD_INIT(security_hook_heads.socket_bind),
1841     .socket_connect =
1842         LIST_HEAD_INIT(security_hook_heads.socket_connect),
1843     .socket_listen =
1844         LIST_HEAD_INIT(security_hook_heads.socket_listen),
1845     .socket_accept =
1846         LIST_HEAD_INIT(security_hook_heads.socket_accept),
1847     .socket_sendmsg =
1848         LIST_HEAD_INIT(security_hook_heads.socket_sendmsg),
1849     .socket_recvmsg =
1850         LIST_HEAD_INIT(security_hook_heads.socket_recvmsg),
1851     .socket_getsockname =
1852         LIST_HEAD_INIT(security_hook_heads.socket_getsockname),
1853     .socket_getpeername =
1854         LIST_HEAD_INIT(security_hook_heads.socket_getpeername),
1855     .socket_getsockopt =
1856         LIST_HEAD_INIT(security_hook_heads.socket_getsockopt),
1857     .socket_setsockopt =
1858         LIST_HEAD_INIT(security_hook_heads.socket_setsockopt),
1859     .socket_shutdown =
1860         LIST_HEAD_INIT(security_hook_heads.socket_shutdown),
1861     .socket_sock_rcv_skb =
1862         LIST_HEAD_INIT(security_hook_heads.socket_sock_rcv_skb),
1863     .socket_getpeersec_stream =
1864         LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_stream),
1865     .socket_getpeersec_dgram =
1866         LIST_HEAD_INIT(security_hook_heads.socket_getpeersec_dgram),
1867     .sk_alloc_security =
1868         LIST_HEAD_INIT(security_hook_heads.sk_alloc_security),
1869     .sk_free_security =
1870         LIST_HEAD_INIT(security_hook_heads.sk_free_security),
1871     .sk_clone_security =
1872         LIST_HEAD_INIT(security_hook_heads.sk_clone_security),
1873     .sk_getsecid =  LIST_HEAD_INIT(security_hook_heads.sk_getsecid),
1874     .sock_graft =   LIST_HEAD_INIT(security_hook_heads.sock_graft),
1875     .inet_conn_request =
1876         LIST_HEAD_INIT(security_hook_heads.inet_conn_request),
1877     .inet_csk_clone =
1878         LIST_HEAD_INIT(security_hook_heads.inet_csk_clone),
1879     .inet_conn_established =
1880         LIST_HEAD_INIT(security_hook_heads.inet_conn_established),
1881     .secmark_relabel_packet =
1882         LIST_HEAD_INIT(security_hook_heads.secmark_relabel_packet),
1883     .secmark_refcount_inc =
1884         LIST_HEAD_INIT(security_hook_heads.secmark_refcount_inc),
1885     .secmark_refcount_dec =
1886         LIST_HEAD_INIT(security_hook_heads.secmark_refcount_dec),
1887     .req_classify_flow =
1888         LIST_HEAD_INIT(security_hook_heads.req_classify_flow),
1889     .tun_dev_alloc_security =
1890         LIST_HEAD_INIT(security_hook_heads.tun_dev_alloc_security),
1891     .tun_dev_free_security =
1892         LIST_HEAD_INIT(security_hook_heads.tun_dev_free_security),
1893     .tun_dev_create =
1894         LIST_HEAD_INIT(security_hook_heads.tun_dev_create),
1895     .tun_dev_attach_queue =
1896         LIST_HEAD_INIT(security_hook_heads.tun_dev_attach_queue),
1897     .tun_dev_attach =
1898         LIST_HEAD_INIT(security_hook_heads.tun_dev_attach),
1899     .tun_dev_open = LIST_HEAD_INIT(security_hook_heads.tun_dev_open),
1900 #endif  /* CONFIG_SECURITY_NETWORK */
1901 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1902     .xfrm_policy_alloc_security =
1903         LIST_HEAD_INIT(security_hook_heads.xfrm_policy_alloc_security),
1904     .xfrm_policy_clone_security =
1905         LIST_HEAD_INIT(security_hook_heads.xfrm_policy_clone_security),
1906     .xfrm_policy_free_security =
1907         LIST_HEAD_INIT(security_hook_heads.xfrm_policy_free_security),
1908     .xfrm_policy_delete_security =
1909         LIST_HEAD_INIT(security_hook_heads.xfrm_policy_delete_security),
1910     .xfrm_state_alloc =
1911         LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc),
1912     .xfrm_state_alloc_acquire =
1913         LIST_HEAD_INIT(security_hook_heads.xfrm_state_alloc_acquire),
1914     .xfrm_state_free_security =
1915         LIST_HEAD_INIT(security_hook_heads.xfrm_state_free_security),
1916     .xfrm_state_delete_security =
1917         LIST_HEAD_INIT(security_hook_heads.xfrm_state_delete_security),
1918     .xfrm_policy_lookup =
1919         LIST_HEAD_INIT(security_hook_heads.xfrm_policy_lookup),
1920     .xfrm_state_pol_flow_match =
1921         LIST_HEAD_INIT(security_hook_heads.xfrm_state_pol_flow_match),
1922     .xfrm_decode_session =
1923         LIST_HEAD_INIT(security_hook_heads.xfrm_decode_session),
1924 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1925 #ifdef CONFIG_KEYS
1926     .key_alloc =    LIST_HEAD_INIT(security_hook_heads.key_alloc),
1927     .key_free = LIST_HEAD_INIT(security_hook_heads.key_free),
1928     .key_permission =
1929         LIST_HEAD_INIT(security_hook_heads.key_permission),
1930     .key_getsecurity =
1931         LIST_HEAD_INIT(security_hook_heads.key_getsecurity),
1932 #endif  /* CONFIG_KEYS */
1933 #ifdef CONFIG_AUDIT
1934     .audit_rule_init =
1935         LIST_HEAD_INIT(security_hook_heads.audit_rule_init),
1936     .audit_rule_known =
1937         LIST_HEAD_INIT(security_hook_heads.audit_rule_known),
1938     .audit_rule_match =
1939         LIST_HEAD_INIT(security_hook_heads.audit_rule_match),
1940     .audit_rule_free =
1941         LIST_HEAD_INIT(security_hook_heads.audit_rule_free),
1942 #endif /* CONFIG_AUDIT */
1943 };