include/linux/security.h

   1 /*
   2  * Linux Security plug
   3  *
   4  * Copyright (C) 2001 WireX Communications, Inc <[email protected]>
   5  * Copyright (C) 2001 Greg Kroah-Hartman <[email protected]>
   6  * Copyright (C) 2001 Networks Associates Technology, Inc <[email protected]>
   7  * Copyright (C) 2001 James Morris <[email protected]>
   8  * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
   9  * Copyright (C) 2016 Mellanox Techonologies
  10  *
  11  *      This program is free software; you can redistribute it and/or modify
  12  *      it under the terms of the GNU General Public License as published by
  13  *      the Free Software Foundation; either version 2 of the License, or
  14  *      (at your option) any later version.
  15  *
  16  *      Due to this file being licensed under the GPL there is controversy over
  17  *      whether this permits you to write a module that #includes this file
  18  *      without placing your module under the GPL.  Please consult a lawyer for
  19  *      advice before doing this.
  20  *
  21  */
  22
  23 #ifndef __LINUX_SECURITY_H
  24 #define __LINUX_SECURITY_H
  25
  26 #include <linux/kernel_read_file.h>
  27 #include <linux/key.h>
  28 #include <linux/capability.h>
  29 #include <linux/fs.h>
  30 #include <linux/slab.h>
  31 #include <linux/err.h>
  32 #include <linux/string.h>
  33 #include <linux/mm.h>
  34 #include <linux/sockptr.h>
  35 #include <linux/bpf.h>
  36 #include <uapi/linux/lsm.h>
  37
  38 struct linux_binprm;
  39 struct cred;
  40 struct rlimit;
  41 struct kernel_siginfo;
  42 struct sembuf;
  43 struct kern_ipc_perm;
  44 struct audit_context;
  45 struct super_block;
  46 struct inode;
  47 struct dentry;
  48 struct file;
  49 struct vfsmount;
  50 struct path;
  51 struct qstr;
  52 struct iattr;
  53 struct fown_struct;
  54 struct file_operations;
  55 struct msg_msg;
  56 struct xattr;
  57 struct kernfs_node;
  58 struct xfrm_sec_ctx;
  59 struct mm_struct;
  60 struct fs_context;
  61 struct fs_parameter;
  62 enum fs_value_type;
  63 struct watch;
  64 struct watch_notification;
  65 struct lsm_ctx;
  66
  67 /* Default (no) options for the capable function */
  68 #define CAP_OPT_NONE 0x0
  69 /* If capable should audit the security request */
  70 #define CAP_OPT_NOAUDIT BIT(1)
  71 /* If capable is being called by a setid function */
  72 #define CAP_OPT_INSETID BIT(2)
  73
  74 /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
  75 #define SECURITY_LSM_NATIVE_LABELS      1
  76
  77 struct ctl_table;
  78 struct audit_krule;
  79 struct user_namespace;
  80 struct timezone;
  81
  82 enum lsm_event {
  83         LSM_POLICY_CHANGE,
  84 };
  85
  86 /*
  87  * These are reasons that can be passed to the security_locked_down()
  88  * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
  89  * ability for userland to modify kernel code) are placed before
  90  * LOCKDOWN_INTEGRITY_MAX.  Lockdown reasons that protect kernel
  91  * confidentiality (ie, the ability for userland to extract
  92  * information from the running kernel that would otherwise be
  93  * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
  94  *
  95  * LSM authors should note that the semantics of any given lockdown
  96  * reason are not guaranteed to be stable - the same reason may block
  97  * one set of features in one kernel release, and a slightly different
  98  * set of features in a later kernel release. LSMs that seek to expose
  99  * lockdown policy at any level of granularity other than "none",
 100  * "integrity" or "confidentiality" are responsible for either
 101  * ensuring that they expose a consistent level of functionality to
 102  * userland, or ensuring that userland is aware that this is
 103  * potentially a moving target. It is easy to misuse this information
 104  * in a way that could break userspace. Please be careful not to do
 105  * so.
 106  *
 107  * If you add to this, remember to extend lockdown_reasons in
 108  * security/lockdown/lockdown.c.
 109  */
 110 enum lockdown_reason {
 111         LOCKDOWN_NONE,
 112         LOCKDOWN_MODULE_SIGNATURE,
 113         LOCKDOWN_DEV_MEM,
 114         LOCKDOWN_EFI_TEST,
 115         LOCKDOWN_KEXEC,
 116         LOCKDOWN_HIBERNATION,
 117         LOCKDOWN_PCI_ACCESS,
 118         LOCKDOWN_IOPORT,
 119         LOCKDOWN_MSR,
 120         LOCKDOWN_ACPI_TABLES,
 121         LOCKDOWN_DEVICE_TREE,
 122         LOCKDOWN_PCMCIA_CIS,
 123         LOCKDOWN_TIOCSSERIAL,
 124         LOCKDOWN_MODULE_PARAMETERS,
 125         LOCKDOWN_MMIOTRACE,
 126         LOCKDOWN_DEBUGFS,
 127         LOCKDOWN_XMON_WR,
 128         LOCKDOWN_BPF_WRITE_USER,
 129         LOCKDOWN_DBG_WRITE_KERNEL,
 130         LOCKDOWN_RTAS_ERROR_INJECTION,
 131         LOCKDOWN_INTEGRITY_MAX,
 132         LOCKDOWN_KCORE,
 133         LOCKDOWN_KPROBES,
 134         LOCKDOWN_BPF_READ_KERNEL,
 135         LOCKDOWN_DBG_READ_KERNEL,
 136         LOCKDOWN_PERF,
 137         LOCKDOWN_TRACEFS,
 138         LOCKDOWN_XMON_RW,
 139         LOCKDOWN_XFRM_SECRET,
 140         LOCKDOWN_CONFIDENTIALITY_MAX,
 141 };
 142
 143 extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
 144 extern u32 lsm_active_cnt;
 145 extern const struct lsm_id *lsm_idlist[];
 146
 147 /* These functions are in security/commoncap.c */
 148 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
 149                        int cap, unsigned int opts);
 150 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
 151 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
 152 extern int cap_ptrace_traceme(struct task_struct *parent);
 153 extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
 154                       kernel_cap_t *inheritable, kernel_cap_t *permitted);
 155 extern int cap_capset(struct cred *new, const struct cred *old,
 156                       const kernel_cap_t *effective,
 157                       const kernel_cap_t *inheritable,
 158                       const kernel_cap_t *permitted);
 159 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 160 int cap_inode_setxattr(struct dentry *dentry, const char *name,
 161                        const void *value, size_t size, int flags);
 162 int cap_inode_removexattr(struct mnt_idmap *idmap,
 163                           struct dentry *dentry, const char *name);
 164 int cap_inode_need_killpriv(struct dentry *dentry);
 165 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 166 int cap_inode_getsecurity(struct mnt_idmap *idmap,
 167                           struct inode *inode, const char *name, void **buffer,
 168                           bool alloc);
 169 extern int cap_mmap_addr(unsigned long addr);
 170 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
 171                          unsigned long prot, unsigned long flags);
 172 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
 173 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 174                           unsigned long arg4, unsigned long arg5);
 175 extern int cap_task_setscheduler(struct task_struct *p);
 176 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
 177 extern int cap_task_setnice(struct task_struct *p, int nice);
 178 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
 179
 180 struct msghdr;
 181 struct sk_buff;
 182 struct sock;
 183 struct sockaddr;
 184 struct socket;
 185 struct flowi_common;
 186 struct dst_entry;
 187 struct xfrm_selector;
 188 struct xfrm_policy;
 189 struct xfrm_state;
 190 struct xfrm_user_sec_ctx;
 191 struct seq_file;
 192 struct sctp_association;
 193
 194 #ifdef CONFIG_MMU
 195 extern unsigned long mmap_min_addr;
 196 extern unsigned long dac_mmap_min_addr;
 197 #else
 198 #define mmap_min_addr           0UL
 199 #define dac_mmap_min_addr       0UL
 200 #endif
 201
 202 /*
 203  * Values used in the task_security_ops calls
 204  */
 205 /* setuid or setgid, id0 == uid or gid */
 206 #define LSM_SETID_ID    1
 207
 208 /* setreuid or setregid, id0 == real, id1 == eff */
 209 #define LSM_SETID_RE    2
 210
 211 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
 212 #define LSM_SETID_RES   4
 213
 214 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
 215 #define LSM_SETID_FS    8
 216
 217 /* Flags for security_task_prlimit(). */
 218 #define LSM_PRLIMIT_READ  1
 219 #define LSM_PRLIMIT_WRITE 2
 220
 221 /* forward declares to avoid warnings */
 222 struct sched_param;
 223 struct request_sock;
 224
 225 /* bprm->unsafe reasons */
 226 #define LSM_UNSAFE_SHARE        1
 227 #define LSM_UNSAFE_PTRACE       2
 228 #define LSM_UNSAFE_NO_NEW_PRIVS 4
 229
 230 #ifdef CONFIG_MMU
 231 extern int mmap_min_addr_handler(const struct ctl_table *table, int write,
 232                                  void *buffer, size_t *lenp, loff_t *ppos);
 233 #endif
 234
 235 /* security_inode_init_security callback function to write xattrs */
 236 typedef int (*initxattrs) (struct inode *inode,
 237                            const struct xattr *xattr_array, void *fs_data);
 238
 239
 240 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
 241 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
 242 #define __data_id_stringify(dummy, str) #str,
 243
 244 enum kernel_load_data_id {
 245         __kernel_read_file_id(__data_id_enumify)
 246 };
 247
 248 static const char * const kernel_load_data_str[] = {
 249         __kernel_read_file_id(__data_id_stringify)
 250 };
 251
 252 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
 253 {
 254         if ((unsigned)id >= LOADING_MAX_ID)
 255                 return kernel_load_data_str[LOADING_UNKNOWN];
 256
 257         return kernel_load_data_str[id];
 258 }
 259
 260 #ifdef CONFIG_SECURITY
 261
 262 int call_blocking_lsm_notifier(enum lsm_event event, void *data);
 263 int register_blocking_lsm_notifier(struct notifier_block *nb);
 264 int unregister_blocking_lsm_notifier(struct notifier_block *nb);
 265
 266 /* prototypes */
 267 extern int security_init(void);
 268 extern int early_security_init(void);
 269 extern u64 lsm_name_to_attr(const char *name);
 270
 271 /* Security operations */
 272 int security_binder_set_context_mgr(const struct cred *mgr);
 273 int security_binder_transaction(const struct cred *from,
 274                                 const struct cred *to);
 275 int security_binder_transfer_binder(const struct cred *from,
 276                                     const struct cred *to);
 277 int security_binder_transfer_file(const struct cred *from,
 278                                   const struct cred *to, const struct file *file);
 279 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 280 int security_ptrace_traceme(struct task_struct *parent);
 281 int security_capget(const struct task_struct *target,
 282                     kernel_cap_t *effective,
 283                     kernel_cap_t *inheritable,
 284                     kernel_cap_t *permitted);
 285 int security_capset(struct cred *new, const struct cred *old,
 286                     const kernel_cap_t *effective,
 287                     const kernel_cap_t *inheritable,
 288                     const kernel_cap_t *permitted);
 289 int security_capable(const struct cred *cred,
 290                        struct user_namespace *ns,
 291                        int cap,
 292                        unsigned int opts);
 293 int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
 294 int security_quota_on(struct dentry *dentry);
 295 int security_syslog(int type);
 296 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
 297 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
 298 int security_bprm_creds_for_exec(struct linux_binprm *bprm);
 299 int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
 300 int security_bprm_check(struct linux_binprm *bprm);
 301 void security_bprm_committing_creds(const struct linux_binprm *bprm);
 302 void security_bprm_committed_creds(const struct linux_binprm *bprm);
 303 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
 304 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
 305 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
 306 int security_sb_alloc(struct super_block *sb);
 307 void security_sb_delete(struct super_block *sb);
 308 void security_sb_free(struct super_block *sb);
 309 void security_free_mnt_opts(void **mnt_opts);
 310 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
 311 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
 312 int security_sb_remount(struct super_block *sb, void *mnt_opts);
 313 int security_sb_kern_mount(const struct super_block *sb);
 314 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
 315 int security_sb_statfs(struct dentry *dentry);
 316 int security_sb_mount(const char *dev_name, const struct path *path,
 317                       const char *type, unsigned long flags, void *data);
 318 int security_sb_umount(struct vfsmount *mnt, int flags);
 319 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
 320 int security_sb_set_mnt_opts(struct super_block *sb,
 321                                 void *mnt_opts,
 322                                 unsigned long kern_flags,
 323                                 unsigned long *set_kern_flags);
 324 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 325                                 struct super_block *newsb,
 326                                 unsigned long kern_flags,
 327                                 unsigned long *set_kern_flags);
 328 int security_move_mount(const struct path *from_path, const struct path *to_path);
 329 int security_dentry_init_security(struct dentry *dentry, int mode,
 330                                   const struct qstr *name,
 331                                   const char **xattr_name, void **ctx,
 332                                   u32 *ctxlen);
 333 int security_dentry_create_files_as(struct dentry *dentry, int mode,
 334                                         struct qstr *name,
 335                                         const struct cred *old,
 336                                         struct cred *new);
 337 int security_path_notify(const struct path *path, u64 mask,
 338                                         unsigned int obj_type);
 339 int security_inode_alloc(struct inode *inode);
 340 void security_inode_free(struct inode *inode);
 341 int security_inode_init_security(struct inode *inode, struct inode *dir,
 342                                  const struct qstr *qstr,
 343                                  initxattrs initxattrs, void *fs_data);
 344 int security_inode_init_security_anon(struct inode *inode,
 345                                       const struct qstr *name,
 346                                       const struct inode *context_inode);
 347 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
 348 void security_inode_post_create_tmpfile(struct mnt_idmap *idmap,
 349                                         struct inode *inode);
 350 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
 351                          struct dentry *new_dentry);
 352 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
 353 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
 354                            const char *old_name);
 355 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
 356 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
 357 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
 358 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
 359                           struct inode *new_dir, struct dentry *new_dentry,
 360                           unsigned int flags);
 361 int security_inode_readlink(struct dentry *dentry);
 362 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
 363                                bool rcu);
 364 int security_inode_permission(struct inode *inode, int mask);
 365 int security_inode_setattr(struct mnt_idmap *idmap,
 366                            struct dentry *dentry, struct iattr *attr);
 367 void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 368                                  int ia_valid);
 369 int security_inode_getattr(const struct path *path);
 370 int security_inode_setxattr(struct mnt_idmap *idmap,
 371                             struct dentry *dentry, const char *name,
 372                             const void *value, size_t size, int flags);
 373 int security_inode_set_acl(struct mnt_idmap *idmap,
 374                            struct dentry *dentry, const char *acl_name,
 375                            struct posix_acl *kacl);
 376 void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name,
 377                                  struct posix_acl *kacl);
 378 int security_inode_get_acl(struct mnt_idmap *idmap,
 379                            struct dentry *dentry, const char *acl_name);
 380 int security_inode_remove_acl(struct mnt_idmap *idmap,
 381                               struct dentry *dentry, const char *acl_name);
 382 void security_inode_post_remove_acl(struct mnt_idmap *idmap,
 383                                     struct dentry *dentry,
 384                                     const char *acl_name);
 385 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
 386                                   const void *value, size_t size, int flags);
 387 int security_inode_getxattr(struct dentry *dentry, const char *name);
 388 int security_inode_listxattr(struct dentry *dentry);
 389 int security_inode_removexattr(struct mnt_idmap *idmap,
 390                                struct dentry *dentry, const char *name);
 391 void security_inode_post_removexattr(struct dentry *dentry, const char *name);
 392 int security_inode_need_killpriv(struct dentry *dentry);
 393 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
 394 int security_inode_getsecurity(struct mnt_idmap *idmap,
 395                                struct inode *inode, const char *name,
 396                                void **buffer, bool alloc);
 397 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
 398 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
 399 void security_inode_getsecid(struct inode *inode, u32 *secid);
 400 int security_inode_copy_up(struct dentry *src, struct cred **new);
 401 int security_inode_copy_up_xattr(struct dentry *src, const char *name);
 402 int security_kernfs_init_security(struct kernfs_node *kn_dir,
 403                                   struct kernfs_node *kn);
 404 int security_file_permission(struct file *file, int mask);
 405 int security_file_alloc(struct file *file);
 406 void security_file_release(struct file *file);
 407 void security_file_free(struct file *file);
 408 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 409 int security_file_ioctl_compat(struct file *file, unsigned int cmd,
 410                                unsigned long arg);
 411 int security_mmap_file(struct file *file, unsigned long prot,
 412                         unsigned long flags);
 413 int security_mmap_addr(unsigned long addr);
 414 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
 415                            unsigned long prot);
 416 int security_file_lock(struct file *file, unsigned int cmd);
 417 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
 418 void security_file_set_fowner(struct file *file);
 419 int security_file_send_sigiotask(struct task_struct *tsk,
 420                                  struct fown_struct *fown, int sig);
 421 int security_file_receive(struct file *file);
 422 int security_file_open(struct file *file);
 423 int security_file_post_open(struct file *file, int mask);
 424 int security_file_truncate(struct file *file);
 425 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
 426 void security_task_free(struct task_struct *task);
 427 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
 428 void security_cred_free(struct cred *cred);
 429 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
 430 void security_transfer_creds(struct cred *new, const struct cred *old);
 431 void security_cred_getsecid(const struct cred *c, u32 *secid);
 432 int security_kernel_act_as(struct cred *new, u32 secid);
 433 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
 434 int security_kernel_module_request(char *kmod_name);
 435 int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
 436 int security_kernel_post_load_data(char *buf, loff_t size,
 437                                    enum kernel_load_data_id id,
 438                                    char *description);
 439 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
 440                               bool contents);
 441 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
 442                                    enum kernel_read_file_id id);
 443 int security_task_fix_setuid(struct cred *new, const struct cred *old,
 444                              int flags);
 445 int security_task_fix_setgid(struct cred *new, const struct cred *old,
 446                              int flags);
 447 int security_task_fix_setgroups(struct cred *new, const struct cred *old);
 448 int security_task_setpgid(struct task_struct *p, pid_t pgid);
 449 int security_task_getpgid(struct task_struct *p);
 450 int security_task_getsid(struct task_struct *p);
 451 void security_current_getsecid_subj(u32 *secid);
 452 void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
 453 int security_task_setnice(struct task_struct *p, int nice);
 454 int security_task_setioprio(struct task_struct *p, int ioprio);
 455 int security_task_getioprio(struct task_struct *p);
 456 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
 457                           unsigned int flags);
 458 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
 459                 struct rlimit *new_rlim);
 460 int security_task_setscheduler(struct task_struct *p);
 461 int security_task_getscheduler(struct task_struct *p);
 462 int security_task_movememory(struct task_struct *p);
 463 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
 464                         int sig, const struct cred *cred);
 465 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
 466                         unsigned long arg4, unsigned long arg5);
 467 void security_task_to_inode(struct task_struct *p, struct inode *inode);
 468 int security_create_user_ns(const struct cred *cred);
 469 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
 470 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
 471 int security_msg_msg_alloc(struct msg_msg *msg);
 472 void security_msg_msg_free(struct msg_msg *msg);
 473 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
 474 void security_msg_queue_free(struct kern_ipc_perm *msq);
 475 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
 476 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
 477 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
 478                               struct msg_msg *msg, int msqflg);
 479 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
 480                               struct task_struct *target, long type, int mode);
 481 int security_shm_alloc(struct kern_ipc_perm *shp);
 482 void security_shm_free(struct kern_ipc_perm *shp);
 483 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
 484 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
 485 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
 486 int security_sem_alloc(struct kern_ipc_perm *sma);
 487 void security_sem_free(struct kern_ipc_perm *sma);
 488 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
 489 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
 490 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
 491                         unsigned nsops, int alter);
 492 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
 493 int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 494                          u32 __user *size, u32 flags);
 495 int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
 496                          u32 size, u32 flags);
 497 int security_getprocattr(struct task_struct *p, int lsmid, const char *name,
 498                          char **value);
 499 int security_setprocattr(int lsmid, const char *name, void *value, size_t size);
 500 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
 501 int security_ismaclabel(const char *name);
 502 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
 503 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
 504 void security_release_secctx(char *secdata, u32 seclen);
 505 void security_inode_invalidate_secctx(struct inode *inode);
 506 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 507 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 508 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 509 int security_locked_down(enum lockdown_reason what);
 510 int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
 511                       void *val, size_t val_len, u64 id, u64 flags);
 512 #else /* CONFIG_SECURITY */
 513
 514 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
 515 {
 516         return 0;
 517 }
 518
 519 static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
 520 {
 521         return 0;
 522 }
 523
 524 static inline  int unregister_blocking_lsm_notifier(struct notifier_block *nb)
 525 {
 526         return 0;
 527 }
 528
 529 static inline u64 lsm_name_to_attr(const char *name)
 530 {
 531         return LSM_ATTR_UNDEF;
 532 }
 533
 534 static inline void security_free_mnt_opts(void **mnt_opts)
 535 {
 536 }
 537
 538 /*
 539  * This is the default capabilities functionality.  Most of these functions
 540  * are just stubbed out, but a few must call the proper capable code.
 541  */
 542
 543 static inline int security_init(void)
 544 {
 545         return 0;
 546 }
 547
 548 static inline int early_security_init(void)
 549 {
 550         return 0;
 551 }
 552
 553 static inline int security_binder_set_context_mgr(const struct cred *mgr)
 554 {
 555         return 0;
 556 }
 557
 558 static inline int security_binder_transaction(const struct cred *from,
 559                                               const struct cred *to)
 560 {
 561         return 0;
 562 }
 563
 564 static inline int security_binder_transfer_binder(const struct cred *from,
 565                                                   const struct cred *to)
 566 {
 567         return 0;
 568 }
 569
 570 static inline int security_binder_transfer_file(const struct cred *from,
 571                                                 const struct cred *to,
 572                                                 const struct file *file)
 573 {
 574         return 0;
 575 }
 576
 577 static inline int security_ptrace_access_check(struct task_struct *child,
 578                                              unsigned int mode)
 579 {
 580         return cap_ptrace_access_check(child, mode);
 581 }
 582
 583 static inline int security_ptrace_traceme(struct task_struct *parent)
 584 {
 585         return cap_ptrace_traceme(parent);
 586 }
 587
 588 static inline int security_capget(const struct task_struct *target,
 589                                    kernel_cap_t *effective,
 590                                    kernel_cap_t *inheritable,
 591                                    kernel_cap_t *permitted)
 592 {
 593         return cap_capget(target, effective, inheritable, permitted);
 594 }
 595
 596 static inline int security_capset(struct cred *new,
 597                                    const struct cred *old,
 598                                    const kernel_cap_t *effective,
 599                                    const kernel_cap_t *inheritable,
 600                                    const kernel_cap_t *permitted)
 601 {
 602         return cap_capset(new, old, effective, inheritable, permitted);
 603 }
 604
 605 static inline int security_capable(const struct cred *cred,
 606                                    struct user_namespace *ns,
 607                                    int cap,
 608                                    unsigned int opts)
 609 {
 610         return cap_capable(cred, ns, cap, opts);
 611 }
 612
 613 static inline int security_quotactl(int cmds, int type, int id,
 614                                      const struct super_block *sb)
 615 {
 616         return 0;
 617 }
 618
 619 static inline int security_quota_on(struct dentry *dentry)
 620 {
 621         return 0;
 622 }
 623
 624 static inline int security_syslog(int type)
 625 {
 626         return 0;
 627 }
 628
 629 static inline int security_settime64(const struct timespec64 *ts,
 630                                      const struct timezone *tz)
 631 {
 632         return cap_settime(ts, tz);
 633 }
 634
 635 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 636 {
 637         return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
 638 }
 639
 640 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
 641 {
 642         return 0;
 643 }
 644
 645 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
 646                                                 const struct file *file)
 647 {
 648         return cap_bprm_creds_from_file(bprm, file);
 649 }
 650
 651 static inline int security_bprm_check(struct linux_binprm *bprm)
 652 {
 653         return 0;
 654 }
 655
 656 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
 657 {
 658 }
 659
 660 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
 661 {
 662 }
 663
 664 static inline int security_fs_context_submount(struct fs_context *fc,
 665                                            struct super_block *reference)
 666 {
 667         return 0;
 668 }
 669 static inline int security_fs_context_dup(struct fs_context *fc,
 670                                           struct fs_context *src_fc)
 671 {
 672         return 0;
 673 }
 674 static inline int security_fs_context_parse_param(struct fs_context *fc,
 675                                                   struct fs_parameter *param)
 676 {
 677         return -ENOPARAM;
 678 }
 679
 680 static inline int security_sb_alloc(struct super_block *sb)
 681 {
 682         return 0;
 683 }
 684
 685 static inline void security_sb_delete(struct super_block *sb)
 686 { }
 687
 688 static inline void security_sb_free(struct super_block *sb)
 689 { }
 690
 691 static inline int security_sb_eat_lsm_opts(char *options,
 692                                            void **mnt_opts)
 693 {
 694         return 0;
 695 }
 696
 697 static inline int security_sb_remount(struct super_block *sb,
 698                                       void *mnt_opts)
 699 {
 700         return 0;
 701 }
 702
 703 static inline int security_sb_mnt_opts_compat(struct super_block *sb,
 704                                               void *mnt_opts)
 705 {
 706         return 0;
 707 }
 708
 709
 710 static inline int security_sb_kern_mount(struct super_block *sb)
 711 {
 712         return 0;
 713 }
 714
 715 static inline int security_sb_show_options(struct seq_file *m,
 716                                            struct super_block *sb)
 717 {
 718         return 0;
 719 }
 720
 721 static inline int security_sb_statfs(struct dentry *dentry)
 722 {
 723         return 0;
 724 }
 725
 726 static inline int security_sb_mount(const char *dev_name, const struct path *path,
 727                                     const char *type, unsigned long flags,
 728                                     void *data)
 729 {
 730         return 0;
 731 }
 732
 733 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
 734 {
 735         return 0;
 736 }
 737
 738 static inline int security_sb_pivotroot(const struct path *old_path,
 739                                         const struct path *new_path)
 740 {
 741         return 0;
 742 }
 743
 744 static inline int security_sb_set_mnt_opts(struct super_block *sb,
 745                                            void *mnt_opts,
 746                                            unsigned long kern_flags,
 747                                            unsigned long *set_kern_flags)
 748 {
 749         return 0;
 750 }
 751
 752 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
 753                                               struct super_block *newsb,
 754                                               unsigned long kern_flags,
 755                                               unsigned long *set_kern_flags)
 756 {
 757         return 0;
 758 }
 759
 760 static inline int security_move_mount(const struct path *from_path,
 761                                       const struct path *to_path)
 762 {
 763         return 0;
 764 }
 765
 766 static inline int security_path_notify(const struct path *path, u64 mask,
 767                                 unsigned int obj_type)
 768 {
 769         return 0;
 770 }
 771
 772 static inline int security_inode_alloc(struct inode *inode)
 773 {
 774         return 0;
 775 }
 776
 777 static inline void security_inode_free(struct inode *inode)
 778 { }
 779
 780 static inline int security_dentry_init_security(struct dentry *dentry,
 781                                                  int mode,
 782                                                  const struct qstr *name,
 783                                                  const char **xattr_name,
 784                                                  void **ctx,
 785                                                  u32 *ctxlen)
 786 {
 787         return -EOPNOTSUPP;
 788 }
 789
 790 static inline int security_dentry_create_files_as(struct dentry *dentry,
 791                                                   int mode, struct qstr *name,
 792                                                   const struct cred *old,
 793                                                   struct cred *new)
 794 {
 795         return 0;
 796 }
 797
 798
 799 static inline int security_inode_init_security(struct inode *inode,
 800                                                 struct inode *dir,
 801                                                 const struct qstr *qstr,
 802                                                 const initxattrs xattrs,
 803                                                 void *fs_data)
 804 {
 805         return 0;
 806 }
 807
 808 static inline int security_inode_init_security_anon(struct inode *inode,
 809                                                     const struct qstr *name,
 810                                                     const struct inode *context_inode)
 811 {
 812         return 0;
 813 }
 814
 815 static inline int security_inode_create(struct inode *dir,
 816                                          struct dentry *dentry,
 817                                          umode_t mode)
 818 {
 819         return 0;
 820 }
 821
 822 static inline void
 823 security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode)
 824 { }
 825
 826 static inline int security_inode_link(struct dentry *old_dentry,
 827                                        struct inode *dir,
 828                                        struct dentry *new_dentry)
 829 {
 830         return 0;
 831 }
 832
 833 static inline int security_inode_unlink(struct inode *dir,
 834                                          struct dentry *dentry)
 835 {
 836         return 0;
 837 }
 838
 839 static inline int security_inode_symlink(struct inode *dir,
 840                                           struct dentry *dentry,
 841                                           const char *old_name)
 842 {
 843         return 0;
 844 }
 845
 846 static inline int security_inode_mkdir(struct inode *dir,
 847                                         struct dentry *dentry,
 848                                         int mode)
 849 {
 850         return 0;
 851 }
 852
 853 static inline int security_inode_rmdir(struct inode *dir,
 854                                         struct dentry *dentry)
 855 {
 856         return 0;
 857 }
 858
 859 static inline int security_inode_mknod(struct inode *dir,
 860                                         struct dentry *dentry,
 861                                         int mode, dev_t dev)
 862 {
 863         return 0;
 864 }
 865
 866 static inline int security_inode_rename(struct inode *old_dir,
 867                                          struct dentry *old_dentry,
 868                                          struct inode *new_dir,
 869                                          struct dentry *new_dentry,
 870                                          unsigned int flags)
 871 {
 872         return 0;
 873 }
 874
 875 static inline int security_inode_readlink(struct dentry *dentry)
 876 {
 877         return 0;
 878 }
 879
 880 static inline int security_inode_follow_link(struct dentry *dentry,
 881                                              struct inode *inode,
 882                                              bool rcu)
 883 {
 884         return 0;
 885 }
 886
 887 static inline int security_inode_permission(struct inode *inode, int mask)
 888 {
 889         return 0;
 890 }
 891
 892 static inline int security_inode_setattr(struct mnt_idmap *idmap,
 893                                          struct dentry *dentry,
 894                                          struct iattr *attr)
 895 {
 896         return 0;
 897 }
 898
 899 static inline void
 900 security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
 901                             int ia_valid)
 902 { }
 903
 904 static inline int security_inode_getattr(const struct path *path)
 905 {
 906         return 0;
 907 }
 908
 909 static inline int security_inode_setxattr(struct mnt_idmap *idmap,
 910                 struct dentry *dentry, const char *name, const void *value,
 911                 size_t size, int flags)
 912 {
 913         return cap_inode_setxattr(dentry, name, value, size, flags);
 914 }
 915
 916 static inline int security_inode_set_acl(struct mnt_idmap *idmap,
 917                                          struct dentry *dentry,
 918                                          const char *acl_name,
 919                                          struct posix_acl *kacl)
 920 {
 921         return 0;
 922 }
 923
 924 static inline void security_inode_post_set_acl(struct dentry *dentry,
 925                                                const char *acl_name,
 926                                                struct posix_acl *kacl)
 927 { }
 928
 929 static inline int security_inode_get_acl(struct mnt_idmap *idmap,
 930                                          struct dentry *dentry,
 931                                          const char *acl_name)
 932 {
 933         return 0;
 934 }
 935
 936 static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
 937                                             struct dentry *dentry,
 938                                             const char *acl_name)
 939 {
 940         return 0;
 941 }
 942
 943 static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap,
 944                                                   struct dentry *dentry,
 945                                                   const char *acl_name)
 946 { }
 947
 948 static inline void security_inode_post_setxattr(struct dentry *dentry,
 949                 const char *name, const void *value, size_t size, int flags)
 950 { }
 951
 952 static inline int security_inode_getxattr(struct dentry *dentry,
 953                         const char *name)
 954 {
 955         return 0;
 956 }
 957
 958 static inline int security_inode_listxattr(struct dentry *dentry)
 959 {
 960         return 0;
 961 }
 962
 963 static inline int security_inode_removexattr(struct mnt_idmap *idmap,
 964                                              struct dentry *dentry,
 965                                              const char *name)
 966 {
 967         return cap_inode_removexattr(idmap, dentry, name);
 968 }
 969
 970 static inline void security_inode_post_removexattr(struct dentry *dentry,
 971                                                    const char *name)
 972 { }
 973
 974 static inline int security_inode_need_killpriv(struct dentry *dentry)
 975 {
 976         return cap_inode_need_killpriv(dentry);
 977 }
 978
 979 static inline int security_inode_killpriv(struct mnt_idmap *idmap,
 980                                           struct dentry *dentry)
 981 {
 982         return cap_inode_killpriv(idmap, dentry);
 983 }
 984
 985 static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
 986                                              struct inode *inode,
 987                                              const char *name, void **buffer,
 988                                              bool alloc)
 989 {
 990         return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
 991 }
 992
 993 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
 994 {
 995         return -EOPNOTSUPP;
 996 }
 997
 998 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
 999 {
1000         return 0;
1001 }
1002
1003 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
1004 {
1005         *secid = 0;
1006 }
1007
1008 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
1009 {
1010         return 0;
1011 }
1012
1013 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
1014                                                 struct kernfs_node *kn)
1015 {
1016         return 0;
1017 }
1018
1019 static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name)
1020 {
1021         return -EOPNOTSUPP;
1022 }
1023
1024 static inline int security_file_permission(struct file *file, int mask)
1025 {
1026         return 0;
1027 }
1028
1029 static inline int security_file_alloc(struct file *file)
1030 {
1031         return 0;
1032 }
1033
1034 static inline void security_file_release(struct file *file)
1035 { }
1036
1037 static inline void security_file_free(struct file *file)
1038 { }
1039
1040 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
1041                                       unsigned long arg)
1042 {
1043         return 0;
1044 }
1045
1046 static inline int security_file_ioctl_compat(struct file *file,
1047                                              unsigned int cmd,
1048                                              unsigned long arg)
1049 {
1050         return 0;
1051 }
1052
1053 static inline int security_mmap_file(struct file *file, unsigned long prot,
1054                                      unsigned long flags)
1055 {
1056         return 0;
1057 }
1058
1059 static inline int security_mmap_addr(unsigned long addr)
1060 {
1061         return cap_mmap_addr(addr);
1062 }
1063
1064 static inline int security_file_mprotect(struct vm_area_struct *vma,
1065                                          unsigned long reqprot,
1066                                          unsigned long prot)
1067 {
1068         return 0;
1069 }
1070
1071 static inline int security_file_lock(struct file *file, unsigned int cmd)
1072 {
1073         return 0;
1074 }
1075
1076 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1077                                       unsigned long arg)
1078 {
1079         return 0;
1080 }
1081
1082 static inline void security_file_set_fowner(struct file *file)
1083 {
1084         return;
1085 }
1086
1087 static inline int security_file_send_sigiotask(struct task_struct *tsk,
1088                                                struct fown_struct *fown,
1089                                                int sig)
1090 {
1091         return 0;
1092 }
1093
1094 static inline int security_file_receive(struct file *file)
1095 {
1096         return 0;
1097 }
1098
1099 static inline int security_file_open(struct file *file)
1100 {
1101         return 0;
1102 }
1103
1104 static inline int security_file_post_open(struct file *file, int mask)
1105 {
1106         return 0;
1107 }
1108
1109 static inline int security_file_truncate(struct file *file)
1110 {
1111         return 0;
1112 }
1113
1114 static inline int security_task_alloc(struct task_struct *task,
1115                                       unsigned long clone_flags)
1116 {
1117         return 0;
1118 }
1119
1120 static inline void security_task_free(struct task_struct *task)
1121 { }
1122
1123 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1124 {
1125         return 0;
1126 }
1127
1128 static inline void security_cred_free(struct cred *cred)
1129 { }
1130
1131 static inline int security_prepare_creds(struct cred *new,
1132                                          const struct cred *old,
1133                                          gfp_t gfp)
1134 {
1135         return 0;
1136 }
1137
1138 static inline void security_transfer_creds(struct cred *new,
1139                                            const struct cred *old)
1140 {
1141 }
1142
1143 static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1144 {
1145         *secid = 0;
1146 }
1147
1148 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1149 {
1150         return 0;
1151 }
1152
1153 static inline int security_kernel_create_files_as(struct cred *cred,
1154                                                   struct inode *inode)
1155 {
1156         return 0;
1157 }
1158
1159 static inline int security_kernel_module_request(char *kmod_name)
1160 {
1161         return 0;
1162 }
1163
1164 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1165 {
1166         return 0;
1167 }
1168
1169 static inline int security_kernel_post_load_data(char *buf, loff_t size,
1170                                                  enum kernel_load_data_id id,
1171                                                  char *description)
1172 {
1173         return 0;
1174 }
1175
1176 static inline int security_kernel_read_file(struct file *file,
1177                                             enum kernel_read_file_id id,
1178                                             bool contents)
1179 {
1180         return 0;
1181 }
1182
1183 static inline int security_kernel_post_read_file(struct file *file,
1184                                                  char *buf, loff_t size,
1185                                                  enum kernel_read_file_id id)
1186 {
1187         return 0;
1188 }
1189
1190 static inline int security_task_fix_setuid(struct cred *new,
1191                                            const struct cred *old,
1192                                            int flags)
1193 {
1194         return cap_task_fix_setuid(new, old, flags);
1195 }
1196
1197 static inline int security_task_fix_setgid(struct cred *new,
1198                                            const struct cred *old,
1199                                            int flags)
1200 {
1201         return 0;
1202 }
1203
1204 static inline int security_task_fix_setgroups(struct cred *new,
1205                                            const struct cred *old)
1206 {
1207         return 0;
1208 }
1209
1210 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1211 {
1212         return 0;
1213 }
1214
1215 static inline int security_task_getpgid(struct task_struct *p)
1216 {
1217         return 0;
1218 }
1219
1220 static inline int security_task_getsid(struct task_struct *p)
1221 {
1222         return 0;
1223 }
1224
1225 static inline void security_current_getsecid_subj(u32 *secid)
1226 {
1227         *secid = 0;
1228 }
1229
1230 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1231 {
1232         *secid = 0;
1233 }
1234
1235 static inline int security_task_setnice(struct task_struct *p, int nice)
1236 {
1237         return cap_task_setnice(p, nice);
1238 }
1239
1240 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1241 {
1242         return cap_task_setioprio(p, ioprio);
1243 }
1244
1245 static inline int security_task_getioprio(struct task_struct *p)
1246 {
1247         return 0;
1248 }
1249
1250 static inline int security_task_prlimit(const struct cred *cred,
1251                                         const struct cred *tcred,
1252                                         unsigned int flags)
1253 {
1254         return 0;
1255 }
1256
1257 static inline int security_task_setrlimit(struct task_struct *p,
1258                                           unsigned int resource,
1259                                           struct rlimit *new_rlim)
1260 {
1261         return 0;
1262 }
1263
1264 static inline int security_task_setscheduler(struct task_struct *p)
1265 {
1266         return cap_task_setscheduler(p);
1267 }
1268
1269 static inline int security_task_getscheduler(struct task_struct *p)
1270 {
1271         return 0;
1272 }
1273
1274 static inline int security_task_movememory(struct task_struct *p)
1275 {
1276         return 0;
1277 }
1278
1279 static inline int security_task_kill(struct task_struct *p,
1280                                      struct kernel_siginfo *info, int sig,
1281                                      const struct cred *cred)
1282 {
1283         return 0;
1284 }
1285
1286 static inline int security_task_prctl(int option, unsigned long arg2,
1287                                       unsigned long arg3,
1288                                       unsigned long arg4,
1289                                       unsigned long arg5)
1290 {
1291         return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1292 }
1293
1294 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1295 { }
1296
1297 static inline int security_create_user_ns(const struct cred *cred)
1298 {
1299         return 0;
1300 }
1301
1302 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1303                                           short flag)
1304 {
1305         return 0;
1306 }
1307
1308 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1309 {
1310         *secid = 0;
1311 }
1312
1313 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1314 {
1315         return 0;
1316 }
1317
1318 static inline void security_msg_msg_free(struct msg_msg *msg)
1319 { }
1320
1321 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1322 {
1323         return 0;
1324 }
1325
1326 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1327 { }
1328
1329 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1330                                                int msqflg)
1331 {
1332         return 0;
1333 }
1334
1335 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1336 {
1337         return 0;
1338 }
1339
1340 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1341                                             struct msg_msg *msg, int msqflg)
1342 {
1343         return 0;
1344 }
1345
1346 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1347                                             struct msg_msg *msg,
1348                                             struct task_struct *target,
1349                                             long type, int mode)
1350 {
1351         return 0;
1352 }
1353
1354 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1355 {
1356         return 0;
1357 }
1358
1359 static inline void security_shm_free(struct kern_ipc_perm *shp)
1360 { }
1361
1362 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1363                                          int shmflg)
1364 {
1365         return 0;
1366 }
1367
1368 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1369 {
1370         return 0;
1371 }
1372
1373 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1374                                      char __user *shmaddr, int shmflg)
1375 {
1376         return 0;
1377 }
1378
1379 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1380 {
1381         return 0;
1382 }
1383
1384 static inline void security_sem_free(struct kern_ipc_perm *sma)
1385 { }
1386
1387 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1388 {
1389         return 0;
1390 }
1391
1392 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1393 {
1394         return 0;
1395 }
1396
1397 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1398                                      struct sembuf *sops, unsigned nsops,
1399                                      int alter)
1400 {
1401         return 0;
1402 }
1403
1404 static inline void security_d_instantiate(struct dentry *dentry,
1405                                           struct inode *inode)
1406 { }
1407
1408 static inline int security_getselfattr(unsigned int attr,
1409                                        struct lsm_ctx __user *ctx,
1410                                        size_t __user *size, u32 flags)
1411 {
1412         return -EOPNOTSUPP;
1413 }
1414
1415 static inline int security_setselfattr(unsigned int attr,
1416                                        struct lsm_ctx __user *ctx,
1417                                        size_t size, u32 flags)
1418 {
1419         return -EOPNOTSUPP;
1420 }
1421
1422 static inline int security_getprocattr(struct task_struct *p, int lsmid,
1423                                        const char *name, char **value)
1424 {
1425         return -EINVAL;
1426 }
1427
1428 static inline int security_setprocattr(int lsmid, char *name, void *value,
1429                                        size_t size)
1430 {
1431         return -EINVAL;
1432 }
1433
1434 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1435 {
1436         return 0;
1437 }
1438
1439 static inline int security_ismaclabel(const char *name)
1440 {
1441         return 0;
1442 }
1443
1444 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1445 {
1446         return -EOPNOTSUPP;
1447 }
1448
1449 static inline int security_secctx_to_secid(const char *secdata,
1450                                            u32 seclen,
1451                                            u32 *secid)
1452 {
1453         return -EOPNOTSUPP;
1454 }
1455
1456 static inline void security_release_secctx(char *secdata, u32 seclen)
1457 {
1458 }
1459
1460 static inline void security_inode_invalidate_secctx(struct inode *inode)
1461 {
1462 }
1463
1464 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1465 {
1466         return -EOPNOTSUPP;
1467 }
1468 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1469 {
1470         return -EOPNOTSUPP;
1471 }
1472 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1473 {
1474         return -EOPNOTSUPP;
1475 }
1476 static inline int security_locked_down(enum lockdown_reason what)
1477 {
1478         return 0;
1479 }
1480 static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx,
1481                                     u32 *uctx_len, void *val, size_t val_len,
1482                                     u64 id, u64 flags)
1483 {
1484         return -EOPNOTSUPP;
1485 }
1486 #endif  /* CONFIG_SECURITY */
1487
1488 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1489 int security_post_notification(const struct cred *w_cred,
1490                                const struct cred *cred,
1491                                struct watch_notification *n);
1492 #else
1493 static inline int security_post_notification(const struct cred *w_cred,
1494                                              const struct cred *cred,
1495                                              struct watch_notification *n)
1496 {
1497         return 0;
1498 }
1499 #endif
1500
1501 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1502 int security_watch_key(struct key *key);
1503 #else
1504 static inline int security_watch_key(struct key *key)
1505 {
1506         return 0;
1507 }
1508 #endif
1509
1510 #ifdef CONFIG_SECURITY_NETWORK
1511
1512 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1513 int security_unix_may_send(struct socket *sock,  struct socket *other);
1514 int security_socket_create(int family, int type, int protocol, int kern);
1515 int security_socket_post_create(struct socket *sock, int family,
1516                                 int type, int protocol, int kern);
1517 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1518 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1519 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1520 int security_socket_listen(struct socket *sock, int backlog);
1521 int security_socket_accept(struct socket *sock, struct socket *newsock);
1522 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1523 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1524                             int size, int flags);
1525 int security_socket_getsockname(struct socket *sock);
1526 int security_socket_getpeername(struct socket *sock);
1527 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1528 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1529 int security_socket_shutdown(struct socket *sock, int how);
1530 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1531 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1532                                       sockptr_t optlen, unsigned int len);
1533 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1534 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1535 void security_sk_free(struct sock *sk);
1536 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1537 void security_sk_classify_flow(const struct sock *sk,
1538                                struct flowi_common *flic);
1539 void security_req_classify_flow(const struct request_sock *req,
1540                                 struct flowi_common *flic);
1541 void security_sock_graft(struct sock*sk, struct socket *parent);
1542 int security_inet_conn_request(const struct sock *sk,
1543                         struct sk_buff *skb, struct request_sock *req);
1544 void security_inet_csk_clone(struct sock *newsk,
1545                         const struct request_sock *req);
1546 void security_inet_conn_established(struct sock *sk,
1547                         struct sk_buff *skb);
1548 int security_secmark_relabel_packet(u32 secid);
1549 void security_secmark_refcount_inc(void);
1550 void security_secmark_refcount_dec(void);
1551 int security_tun_dev_alloc_security(void **security);
1552 void security_tun_dev_free_security(void *security);
1553 int security_tun_dev_create(void);
1554 int security_tun_dev_attach_queue(void *security);
1555 int security_tun_dev_attach(struct sock *sk, void *security);
1556 int security_tun_dev_open(void *security);
1557 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1558 int security_sctp_bind_connect(struct sock *sk, int optname,
1559                                struct sockaddr *address, int addrlen);
1560 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1561                             struct sock *newsk);
1562 int security_sctp_assoc_established(struct sctp_association *asoc,
1563                                     struct sk_buff *skb);
1564 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1565
1566 #else   /* CONFIG_SECURITY_NETWORK */
1567 static inline int security_unix_stream_connect(struct sock *sock,
1568                                                struct sock *other,
1569                                                struct sock *newsk)
1570 {
1571         return 0;
1572 }
1573
1574 static inline int security_unix_may_send(struct socket *sock,
1575                                          struct socket *other)
1576 {
1577         return 0;
1578 }
1579
1580 static inline int security_socket_create(int family, int type,
1581                                          int protocol, int kern)
1582 {
1583         return 0;
1584 }
1585
1586 static inline int security_socket_post_create(struct socket *sock,
1587                                               int family,
1588                                               int type,
1589                                               int protocol, int kern)
1590 {
1591         return 0;
1592 }
1593
1594 static inline int security_socket_socketpair(struct socket *socka,
1595                                              struct socket *sockb)
1596 {
1597         return 0;
1598 }
1599
1600 static inline int security_socket_bind(struct socket *sock,
1601                                        struct sockaddr *address,
1602                                        int addrlen)
1603 {
1604         return 0;
1605 }
1606
1607 static inline int security_socket_connect(struct socket *sock,
1608                                           struct sockaddr *address,
1609                                           int addrlen)
1610 {
1611         return 0;
1612 }
1613
1614 static inline int security_socket_listen(struct socket *sock, int backlog)
1615 {
1616         return 0;
1617 }
1618
1619 static inline int security_socket_accept(struct socket *sock,
1620                                          struct socket *newsock)
1621 {
1622         return 0;
1623 }
1624
1625 static inline int security_socket_sendmsg(struct socket *sock,
1626                                           struct msghdr *msg, int size)
1627 {
1628         return 0;
1629 }
1630
1631 static inline int security_socket_recvmsg(struct socket *sock,
1632                                           struct msghdr *msg, int size,
1633                                           int flags)
1634 {
1635         return 0;
1636 }
1637
1638 static inline int security_socket_getsockname(struct socket *sock)
1639 {
1640         return 0;
1641 }
1642
1643 static inline int security_socket_getpeername(struct socket *sock)
1644 {
1645         return 0;
1646 }
1647
1648 static inline int security_socket_getsockopt(struct socket *sock,
1649                                              int level, int optname)
1650 {
1651         return 0;
1652 }
1653
1654 static inline int security_socket_setsockopt(struct socket *sock,
1655                                              int level, int optname)
1656 {
1657         return 0;
1658 }
1659
1660 static inline int security_socket_shutdown(struct socket *sock, int how)
1661 {
1662         return 0;
1663 }
1664 static inline int security_sock_rcv_skb(struct sock *sk,
1665                                         struct sk_buff *skb)
1666 {
1667         return 0;
1668 }
1669
1670 static inline int security_socket_getpeersec_stream(struct socket *sock,
1671                                                     sockptr_t optval,
1672                                                     sockptr_t optlen,
1673                                                     unsigned int len)
1674 {
1675         return -ENOPROTOOPT;
1676 }
1677
1678 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1679 {
1680         return -ENOPROTOOPT;
1681 }
1682
1683 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1684 {
1685         return 0;
1686 }
1687
1688 static inline void security_sk_free(struct sock *sk)
1689 {
1690 }
1691
1692 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1693 {
1694 }
1695
1696 static inline void security_sk_classify_flow(const struct sock *sk,
1697                                              struct flowi_common *flic)
1698 {
1699 }
1700
1701 static inline void security_req_classify_flow(const struct request_sock *req,
1702                                               struct flowi_common *flic)
1703 {
1704 }
1705
1706 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1707 {
1708 }
1709
1710 static inline int security_inet_conn_request(const struct sock *sk,
1711                         struct sk_buff *skb, struct request_sock *req)
1712 {
1713         return 0;
1714 }
1715
1716 static inline void security_inet_csk_clone(struct sock *newsk,
1717                         const struct request_sock *req)
1718 {
1719 }
1720
1721 static inline void security_inet_conn_established(struct sock *sk,
1722                         struct sk_buff *skb)
1723 {
1724 }
1725
1726 static inline int security_secmark_relabel_packet(u32 secid)
1727 {
1728         return 0;
1729 }
1730
1731 static inline void security_secmark_refcount_inc(void)
1732 {
1733 }
1734
1735 static inline void security_secmark_refcount_dec(void)
1736 {
1737 }
1738
1739 static inline int security_tun_dev_alloc_security(void **security)
1740 {
1741         return 0;
1742 }
1743
1744 static inline void security_tun_dev_free_security(void *security)
1745 {
1746 }
1747
1748 static inline int security_tun_dev_create(void)
1749 {
1750         return 0;
1751 }
1752
1753 static inline int security_tun_dev_attach_queue(void *security)
1754 {
1755         return 0;
1756 }
1757
1758 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1759 {
1760         return 0;
1761 }
1762
1763 static inline int security_tun_dev_open(void *security)
1764 {
1765         return 0;
1766 }
1767
1768 static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1769                                               struct sk_buff *skb)
1770 {
1771         return 0;
1772 }
1773
1774 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1775                                              struct sockaddr *address,
1776                                              int addrlen)
1777 {
1778         return 0;
1779 }
1780
1781 static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1782                                           struct sock *sk,
1783                                           struct sock *newsk)
1784 {
1785 }
1786
1787 static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1788                                                   struct sk_buff *skb)
1789 {
1790         return 0;
1791 }
1792
1793 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1794 {
1795         return 0;
1796 }
1797 #endif  /* CONFIG_SECURITY_NETWORK */
1798
1799 #ifdef CONFIG_SECURITY_INFINIBAND
1800 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1801 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1802 int security_ib_alloc_security(void **sec);
1803 void security_ib_free_security(void *sec);
1804 #else   /* CONFIG_SECURITY_INFINIBAND */
1805 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1806 {
1807         return 0;
1808 }
1809
1810 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1811 {
1812         return 0;
1813 }
1814
1815 static inline int security_ib_alloc_security(void **sec)
1816 {
1817         return 0;
1818 }
1819
1820 static inline void security_ib_free_security(void *sec)
1821 {
1822 }
1823 #endif  /* CONFIG_SECURITY_INFINIBAND */
1824
1825 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1826
1827 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1828                                struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1829 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1830 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1831 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1832 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1833 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1834                                       struct xfrm_sec_ctx *polsec, u32 secid);
1835 int security_xfrm_state_delete(struct xfrm_state *x);
1836 void security_xfrm_state_free(struct xfrm_state *x);
1837 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1838 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1839                                        struct xfrm_policy *xp,
1840                                        const struct flowi_common *flic);
1841 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1842 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1843
1844 #else   /* CONFIG_SECURITY_NETWORK_XFRM */
1845
1846 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1847                                              struct xfrm_user_sec_ctx *sec_ctx,
1848                                              gfp_t gfp)
1849 {
1850         return 0;
1851 }
1852
1853 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1854 {
1855         return 0;
1856 }
1857
1858 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1859 {
1860 }
1861
1862 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1863 {
1864         return 0;
1865 }
1866
1867 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1868                                         struct xfrm_user_sec_ctx *sec_ctx)
1869 {
1870         return 0;
1871 }
1872
1873 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1874                                         struct xfrm_sec_ctx *polsec, u32 secid)
1875 {
1876         return 0;
1877 }
1878
1879 static inline void security_xfrm_state_free(struct xfrm_state *x)
1880 {
1881 }
1882
1883 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1884 {
1885         return 0;
1886 }
1887
1888 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1889 {
1890         return 0;
1891 }
1892
1893 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1894                                                      struct xfrm_policy *xp,
1895                                                      const struct flowi_common *flic)
1896 {
1897         return 1;
1898 }
1899
1900 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1901 {
1902         return 0;
1903 }
1904
1905 static inline void security_skb_classify_flow(struct sk_buff *skb,
1906                                               struct flowi_common *flic)
1907 {
1908 }
1909
1910 #endif  /* CONFIG_SECURITY_NETWORK_XFRM */
1911
1912 #ifdef CONFIG_SECURITY_PATH
1913 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1914 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1915 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1916 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1917                         unsigned int dev);
1918 void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry);
1919 int security_path_truncate(const struct path *path);
1920 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1921                           const char *old_name);
1922 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1923                        struct dentry *new_dentry);
1924 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1925                          const struct path *new_dir, struct dentry *new_dentry,
1926                          unsigned int flags);
1927 int security_path_chmod(const struct path *path, umode_t mode);
1928 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1929 int security_path_chroot(const struct path *path);
1930 #else   /* CONFIG_SECURITY_PATH */
1931 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1932 {
1933         return 0;
1934 }
1935
1936 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1937                                       umode_t mode)
1938 {
1939         return 0;
1940 }
1941
1942 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1943 {
1944         return 0;
1945 }
1946
1947 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1948                                       umode_t mode, unsigned int dev)
1949 {
1950         return 0;
1951 }
1952
1953 static inline void security_path_post_mknod(struct mnt_idmap *idmap,
1954                                             struct dentry *dentry)
1955 { }
1956
1957 static inline int security_path_truncate(const struct path *path)
1958 {
1959         return 0;
1960 }
1961
1962 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1963                                         const char *old_name)
1964 {
1965         return 0;
1966 }
1967
1968 static inline int security_path_link(struct dentry *old_dentry,
1969                                      const struct path *new_dir,
1970                                      struct dentry *new_dentry)
1971 {
1972         return 0;
1973 }
1974
1975 static inline int security_path_rename(const struct path *old_dir,
1976                                        struct dentry *old_dentry,
1977                                        const struct path *new_dir,
1978                                        struct dentry *new_dentry,
1979                                        unsigned int flags)
1980 {
1981         return 0;
1982 }
1983
1984 static inline int security_path_chmod(const struct path *path, umode_t mode)
1985 {
1986         return 0;
1987 }
1988
1989 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1990 {
1991         return 0;
1992 }
1993
1994 static inline int security_path_chroot(const struct path *path)
1995 {
1996         return 0;
1997 }
1998 #endif  /* CONFIG_SECURITY_PATH */
1999
2000 #ifdef CONFIG_KEYS
2001 #ifdef CONFIG_SECURITY
2002
2003 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2004 void security_key_free(struct key *key);
2005 int security_key_permission(key_ref_t key_ref, const struct cred *cred,
2006                             enum key_need_perm need_perm);
2007 int security_key_getsecurity(struct key *key, char **_buffer);
2008 void security_key_post_create_or_update(struct key *keyring, struct key *key,
2009                                         const void *payload, size_t payload_len,
2010                                         unsigned long flags, bool create);
2011
2012 #else
2013
2014 static inline int security_key_alloc(struct key *key,
2015                                      const struct cred *cred,
2016                                      unsigned long flags)
2017 {
2018         return 0;
2019 }
2020
2021 static inline void security_key_free(struct key *key)
2022 {
2023 }
2024
2025 static inline int security_key_permission(key_ref_t key_ref,
2026                                           const struct cred *cred,
2027                                           enum key_need_perm need_perm)
2028 {
2029         return 0;
2030 }
2031
2032 static inline int security_key_getsecurity(struct key *key, char **_buffer)
2033 {
2034         *_buffer = NULL;
2035         return 0;
2036 }
2037
2038 static inline void security_key_post_create_or_update(struct key *keyring,
2039                                                       struct key *key,
2040                                                       const void *payload,
2041                                                       size_t payload_len,
2042                                                       unsigned long flags,
2043                                                       bool create)
2044 { }
2045
2046 #endif
2047 #endif /* CONFIG_KEYS */
2048
2049 #ifdef CONFIG_AUDIT
2050 #ifdef CONFIG_SECURITY
2051 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule,
2052                              gfp_t gfp);
2053 int security_audit_rule_known(struct audit_krule *krule);
2054 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
2055 void security_audit_rule_free(void *lsmrule);
2056
2057 #else
2058
2059 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2060                                            void **lsmrule, gfp_t gfp)
2061 {
2062         return 0;
2063 }
2064
2065 static inline int security_audit_rule_known(struct audit_krule *krule)
2066 {
2067         return 0;
2068 }
2069
2070 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2071                                             void *lsmrule)
2072 {
2073         return 0;
2074 }
2075
2076 static inline void security_audit_rule_free(void *lsmrule)
2077 { }
2078
2079 #endif /* CONFIG_SECURITY */
2080 #endif /* CONFIG_AUDIT */
2081
2082 #ifdef CONFIG_SECURITYFS
2083
2084 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
2085                                              struct dentry *parent, void *data,
2086                                              const struct file_operations *fops);
2087 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2088 struct dentry *securityfs_create_symlink(const char *name,
2089                                          struct dentry *parent,
2090                                          const char *target,
2091                                          const struct inode_operations *iops);
2092 extern void securityfs_remove(struct dentry *dentry);
2093
2094 #else /* CONFIG_SECURITYFS */
2095
2096 static inline struct dentry *securityfs_create_dir(const char *name,
2097                                                    struct dentry *parent)
2098 {
2099         return ERR_PTR(-ENODEV);
2100 }
2101
2102 static inline struct dentry *securityfs_create_file(const char *name,
2103                                                     umode_t mode,
2104                                                     struct dentry *parent,
2105                                                     void *data,
2106                                                     const struct file_operations *fops)
2107 {
2108         return ERR_PTR(-ENODEV);
2109 }
2110
2111 static inline struct dentry *securityfs_create_symlink(const char *name,
2112                                         struct dentry *parent,
2113                                         const char *target,
2114                                         const struct inode_operations *iops)
2115 {
2116         return ERR_PTR(-ENODEV);
2117 }
2118
2119 static inline void securityfs_remove(struct dentry *dentry)
2120 {}
2121
2122 #endif
2123
2124 #ifdef CONFIG_BPF_SYSCALL
2125 union bpf_attr;
2126 struct bpf_map;
2127 struct bpf_prog;
2128 struct bpf_token;
2129 #ifdef CONFIG_SECURITY
2130 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2131 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2132 extern int security_bpf_prog(struct bpf_prog *prog);
2133 extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2134                                    struct bpf_token *token);
2135 extern void security_bpf_map_free(struct bpf_map *map);
2136 extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2137                                   struct bpf_token *token);
2138 extern void security_bpf_prog_free(struct bpf_prog *prog);
2139 extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2140                                      const struct path *path);
2141 extern void security_bpf_token_free(struct bpf_token *token);
2142 extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd);
2143 extern int security_bpf_token_capable(const struct bpf_token *token, int cap);
2144 #else
2145 static inline int security_bpf(int cmd, union bpf_attr *attr,
2146                                              unsigned int size)
2147 {
2148         return 0;
2149 }
2150
2151 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2152 {
2153         return 0;
2154 }
2155
2156 static inline int security_bpf_prog(struct bpf_prog *prog)
2157 {
2158         return 0;
2159 }
2160
2161 static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2162                                           struct bpf_token *token)
2163 {
2164         return 0;
2165 }
2166
2167 static inline void security_bpf_map_free(struct bpf_map *map)
2168 { }
2169
2170 static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2171                                          struct bpf_token *token)
2172 {
2173         return 0;
2174 }
2175
2176 static inline void security_bpf_prog_free(struct bpf_prog *prog)
2177 { }
2178
2179 static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2180                                             const struct path *path)
2181 {
2182         return 0;
2183 }
2184
2185 static inline void security_bpf_token_free(struct bpf_token *token)
2186 { }
2187
2188 static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd)
2189 {
2190         return 0;
2191 }
2192
2193 static inline int security_bpf_token_capable(const struct bpf_token *token, int cap)
2194 {
2195         return 0;
2196 }
2197 #endif /* CONFIG_SECURITY */
2198 #endif /* CONFIG_BPF_SYSCALL */
2199
2200 #ifdef CONFIG_PERF_EVENTS
2201 struct perf_event_attr;
2202 struct perf_event;
2203
2204 #ifdef CONFIG_SECURITY
2205 extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2206 extern int security_perf_event_alloc(struct perf_event *event);
2207 extern void security_perf_event_free(struct perf_event *event);
2208 extern int security_perf_event_read(struct perf_event *event);
2209 extern int security_perf_event_write(struct perf_event *event);
2210 #else
2211 static inline int security_perf_event_open(struct perf_event_attr *attr,
2212                                            int type)
2213 {
2214         return 0;
2215 }
2216
2217 static inline int security_perf_event_alloc(struct perf_event *event)
2218 {
2219         return 0;
2220 }
2221
2222 static inline void security_perf_event_free(struct perf_event *event)
2223 {
2224 }
2225
2226 static inline int security_perf_event_read(struct perf_event *event)
2227 {
2228         return 0;
2229 }
2230
2231 static inline int security_perf_event_write(struct perf_event *event)
2232 {
2233         return 0;
2234 }
2235 #endif /* CONFIG_SECURITY */
2236 #endif /* CONFIG_PERF_EVENTS */
2237
2238 #ifdef CONFIG_IO_URING
2239 #ifdef CONFIG_SECURITY
2240 extern int security_uring_override_creds(const struct cred *new);
2241 extern int security_uring_sqpoll(void);
2242 extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2243 #else
2244 static inline int security_uring_override_creds(const struct cred *new)
2245 {
2246         return 0;
2247 }
2248 static inline int security_uring_sqpoll(void)
2249 {
2250         return 0;
2251 }
2252 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2253 {
2254         return 0;
2255 }
2256 #endif /* CONFIG_SECURITY */
2257 #endif /* CONFIG_IO_URING */
2258
2259 #endif /* ! __LINUX_SECURITY_H */