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