include/linux/security.h

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