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