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 siginfo; 39 struct sem_array; 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 shmid_kernel; 54 struct msg_msg; 55 struct msg_queue; 56 struct xattr; 57 struct xfrm_sec_ctx; 58 struct mm_struct; 59 60 /* If capable should audit the security request */ 61 #define SECURITY_CAP_NOAUDIT 0 62 #define SECURITY_CAP_AUDIT 1 63 64 /* LSM Agnostic defines for sb_set_mnt_opts */ 65 #define SECURITY_LSM_NATIVE_LABELS 1 66 67 struct ctl_table; 68 struct audit_krule; 69 struct user_namespace; 70 struct timezone; 71 72 enum lsm_event { 73 LSM_POLICY_CHANGE, 74 }; 75 76 /* These functions are in security/commoncap.c */ 77 extern int cap_capable(const struct cred *cred, struct user_namespace *ns, 78 int cap, int audit); 79 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz); 80 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); 81 extern int cap_ptrace_traceme(struct task_struct *parent); 82 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); 83 extern int cap_capset(struct cred *new, const struct cred *old, 84 const kernel_cap_t *effective, 85 const kernel_cap_t *inheritable, 86 const kernel_cap_t *permitted); 87 extern int cap_bprm_set_creds(struct linux_binprm *bprm); 88 extern int cap_bprm_secureexec(struct linux_binprm *bprm); 89 extern int cap_inode_setxattr(struct dentry *dentry, const char *name, 90 const void *value, size_t size, int flags); 91 extern int cap_inode_removexattr(struct dentry *dentry, const char *name); 92 extern int cap_inode_need_killpriv(struct dentry *dentry); 93 extern int cap_inode_killpriv(struct dentry *dentry); 94 extern int cap_mmap_addr(unsigned long addr); 95 extern int cap_mmap_file(struct file *file, unsigned long reqprot, 96 unsigned long prot, unsigned long flags); 97 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); 98 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, 99 unsigned long arg4, unsigned long arg5); 100 extern int cap_task_setscheduler(struct task_struct *p); 101 extern int cap_task_setioprio(struct task_struct *p, int ioprio); 102 extern int cap_task_setnice(struct task_struct *p, int nice); 103 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); 104 105 struct msghdr; 106 struct sk_buff; 107 struct sock; 108 struct sockaddr; 109 struct socket; 110 struct flowi; 111 struct dst_entry; 112 struct xfrm_selector; 113 struct xfrm_policy; 114 struct xfrm_state; 115 struct xfrm_user_sec_ctx; 116 struct seq_file; 117 118 #ifdef CONFIG_MMU 119 extern unsigned long mmap_min_addr; 120 extern unsigned long dac_mmap_min_addr; 121 #else 122 #define mmap_min_addr 0UL 123 #define dac_mmap_min_addr 0UL 124 #endif 125 126 /* 127 * Values used in the task_security_ops calls 128 */ 129 /* setuid or setgid, id0 == uid or gid */ 130 #define LSM_SETID_ID 1 131 132 /* setreuid or setregid, id0 == real, id1 == eff */ 133 #define LSM_SETID_RE 2 134 135 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ 136 #define LSM_SETID_RES 4 137 138 /* setfsuid or setfsgid, id0 == fsuid or fsgid */ 139 #define LSM_SETID_FS 8 140 141 /* Flags for security_task_prlimit(). */ 142 #define LSM_PRLIMIT_READ 1 143 #define LSM_PRLIMIT_WRITE 2 144 145 /* forward declares to avoid warnings */ 146 struct sched_param; 147 struct request_sock; 148 149 /* bprm->unsafe reasons */ 150 #define LSM_UNSAFE_SHARE 1 151 #define LSM_UNSAFE_PTRACE 2 152 #define LSM_UNSAFE_NO_NEW_PRIVS 4 153 154 #ifdef CONFIG_MMU 155 extern int mmap_min_addr_handler(struct ctl_table *table, int write, 156 void __user *buffer, size_t *lenp, loff_t *ppos); 157 #endif 158 159 /* security_inode_init_security callback function to write xattrs */ 160 typedef int (*initxattrs) (struct inode *inode, 161 const struct xattr *xattr_array, void *fs_data); 162 163 #ifdef CONFIG_SECURITY 164 165 struct security_mnt_opts { 166 char **mnt_opts; 167 int *mnt_opts_flags; 168 int num_mnt_opts; 169 }; 170 171 int call_lsm_notifier(enum lsm_event event, void *data); 172 int register_lsm_notifier(struct notifier_block *nb); 173 int unregister_lsm_notifier(struct notifier_block *nb); 174 175 static inline void security_init_mnt_opts(struct security_mnt_opts *opts) 176 { 177 opts->mnt_opts = NULL; 178 opts->mnt_opts_flags = NULL; 179 opts->num_mnt_opts = 0; 180 } 181 182 static inline void security_free_mnt_opts(struct security_mnt_opts *opts) 183 { 184 int i; 185 if (opts->mnt_opts) 186 for (i = 0; i < opts->num_mnt_opts; i++) 187 kfree(opts->mnt_opts[i]); 188 kfree(opts->mnt_opts); 189 opts->mnt_opts = NULL; 190 kfree(opts->mnt_opts_flags); 191 opts->mnt_opts_flags = NULL; 192 opts->num_mnt_opts = 0; 193 } 194 195 /* prototypes */ 196 extern int security_init(void); 197 198 /* Security operations */ 199 int security_binder_set_context_mgr(struct task_struct *mgr); 200 int security_binder_transaction(struct task_struct *from, 201 struct task_struct *to); 202 int security_binder_transfer_binder(struct task_struct *from, 203 struct task_struct *to); 204 int security_binder_transfer_file(struct task_struct *from, 205 struct task_struct *to, struct file *file); 206 int security_ptrace_access_check(struct task_struct *child, unsigned int mode); 207 int security_ptrace_traceme(struct task_struct *parent); 208 int security_capget(struct task_struct *target, 209 kernel_cap_t *effective, 210 kernel_cap_t *inheritable, 211 kernel_cap_t *permitted); 212 int security_capset(struct cred *new, const struct cred *old, 213 const kernel_cap_t *effective, 214 const kernel_cap_t *inheritable, 215 const kernel_cap_t *permitted); 216 int security_capable(const struct cred *cred, struct user_namespace *ns, 217 int cap); 218 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, 219 int cap); 220 int security_quotactl(int cmds, int type, int id, struct super_block *sb); 221 int security_quota_on(struct dentry *dentry); 222 int security_syslog(int type); 223 int security_settime64(const struct timespec64 *ts, const struct timezone *tz); 224 static inline int security_settime(const struct timespec *ts, const struct timezone *tz) 225 { 226 struct timespec64 ts64 = timespec_to_timespec64(*ts); 227 228 return security_settime64(&ts64, tz); 229 } 230 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); 231 int security_bprm_set_creds(struct linux_binprm *bprm); 232 int security_bprm_check(struct linux_binprm *bprm); 233 void security_bprm_committing_creds(struct linux_binprm *bprm); 234 void security_bprm_committed_creds(struct linux_binprm *bprm); 235 int security_bprm_secureexec(struct linux_binprm *bprm); 236 int security_sb_alloc(struct super_block *sb); 237 void security_sb_free(struct super_block *sb); 238 int security_sb_copy_data(char *orig, char *copy); 239 int security_sb_remount(struct super_block *sb, void *data); 240 int security_sb_kern_mount(struct super_block *sb, int flags, void *data); 241 int security_sb_show_options(struct seq_file *m, struct super_block *sb); 242 int security_sb_statfs(struct dentry *dentry); 243 int security_sb_mount(const char *dev_name, const struct path *path, 244 const char *type, unsigned long flags, void *data); 245 int security_sb_umount(struct vfsmount *mnt, int flags); 246 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path); 247 int security_sb_set_mnt_opts(struct super_block *sb, 248 struct security_mnt_opts *opts, 249 unsigned long kern_flags, 250 unsigned long *set_kern_flags); 251 int security_sb_clone_mnt_opts(const struct super_block *oldsb, 252 struct super_block *newsb, 253 unsigned long kern_flags, 254 unsigned long *set_kern_flags); 255 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); 256 int security_dentry_init_security(struct dentry *dentry, int mode, 257 const struct qstr *name, void **ctx, 258 u32 *ctxlen); 259 int security_dentry_create_files_as(struct dentry *dentry, int mode, 260 struct qstr *name, 261 const struct cred *old, 262 struct cred *new); 263 264 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_file_permission(struct file *file, int mask); 306 int security_file_alloc(struct file *file); 307 void security_file_free(struct file *file); 308 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 309 int security_mmap_file(struct file *file, unsigned long prot, 310 unsigned long flags); 311 int security_mmap_addr(unsigned long addr); 312 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 313 unsigned long prot); 314 int security_file_lock(struct file *file, unsigned int cmd); 315 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); 316 void security_file_set_fowner(struct file *file); 317 int security_file_send_sigiotask(struct task_struct *tsk, 318 struct fown_struct *fown, int sig); 319 int security_file_receive(struct file *file); 320 int security_file_open(struct file *file, const struct cred *cred); 321 int security_task_create(unsigned long clone_flags); 322 int security_task_alloc(struct task_struct *task, unsigned long clone_flags); 323 void security_task_free(struct task_struct *task); 324 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); 325 void security_cred_free(struct cred *cred); 326 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); 327 void security_transfer_creds(struct cred *new, const struct cred *old); 328 int security_kernel_act_as(struct cred *new, u32 secid); 329 int security_kernel_create_files_as(struct cred *new, struct inode *inode); 330 int security_kernel_module_request(char *kmod_name); 331 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id); 332 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 333 enum kernel_read_file_id id); 334 int security_task_fix_setuid(struct cred *new, const struct cred *old, 335 int flags); 336 int security_task_setpgid(struct task_struct *p, pid_t pgid); 337 int security_task_getpgid(struct task_struct *p); 338 int security_task_getsid(struct task_struct *p); 339 void security_task_getsecid(struct task_struct *p, u32 *secid); 340 int security_task_setnice(struct task_struct *p, int nice); 341 int security_task_setioprio(struct task_struct *p, int ioprio); 342 int security_task_getioprio(struct task_struct *p); 343 int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 344 unsigned int flags); 345 int security_task_setrlimit(struct task_struct *p, unsigned int resource, 346 struct rlimit *new_rlim); 347 int security_task_setscheduler(struct task_struct *p); 348 int security_task_getscheduler(struct task_struct *p); 349 int security_task_movememory(struct task_struct *p); 350 int security_task_kill(struct task_struct *p, struct siginfo *info, 351 int sig, u32 secid); 352 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 353 unsigned long arg4, unsigned long arg5); 354 void security_task_to_inode(struct task_struct *p, struct inode *inode); 355 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 356 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); 357 int security_msg_msg_alloc(struct msg_msg *msg); 358 void security_msg_msg_free(struct msg_msg *msg); 359 int security_msg_queue_alloc(struct msg_queue *msq); 360 void security_msg_queue_free(struct msg_queue *msq); 361 int security_msg_queue_associate(struct msg_queue *msq, int msqflg); 362 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); 363 int security_msg_queue_msgsnd(struct msg_queue *msq, 364 struct msg_msg *msg, int msqflg); 365 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 366 struct task_struct *target, long type, int mode); 367 int security_shm_alloc(struct shmid_kernel *shp); 368 void security_shm_free(struct shmid_kernel *shp); 369 int security_shm_associate(struct shmid_kernel *shp, int shmflg); 370 int security_shm_shmctl(struct shmid_kernel *shp, int cmd); 371 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); 372 int security_sem_alloc(struct sem_array *sma); 373 void security_sem_free(struct sem_array *sma); 374 int security_sem_associate(struct sem_array *sma, int semflg); 375 int security_sem_semctl(struct sem_array *sma, int cmd); 376 int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 377 unsigned nsops, int alter); 378 void security_d_instantiate(struct dentry *dentry, struct inode *inode); 379 int security_getprocattr(struct task_struct *p, char *name, char **value); 380 int security_setprocattr(const char *name, void *value, size_t size); 381 int security_netlink_send(struct sock *sk, struct sk_buff *skb); 382 int security_ismaclabel(const char *name); 383 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 384 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 385 void security_release_secctx(char *secdata, u32 seclen); 386 387 void security_inode_invalidate_secctx(struct inode *inode); 388 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 389 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 390 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 391 #else /* CONFIG_SECURITY */ 392 struct security_mnt_opts { 393 }; 394 395 static inline int call_lsm_notifier(enum lsm_event event, void *data) 396 { 397 return 0; 398 } 399 400 static inline int register_lsm_notifier(struct notifier_block *nb) 401 { 402 return 0; 403 } 404 405 static inline int unregister_lsm_notifier(struct notifier_block *nb) 406 { 407 return 0; 408 } 409 410 static inline void security_init_mnt_opts(struct security_mnt_opts *opts) 411 { 412 } 413 414 static inline void security_free_mnt_opts(struct security_mnt_opts *opts) 415 { 416 } 417 418 /* 419 * This is the default capabilities functionality. Most of these functions 420 * are just stubbed out, but a few must call the proper capable code. 421 */ 422 423 static inline int security_init(void) 424 { 425 return 0; 426 } 427 428 static inline int security_binder_set_context_mgr(struct task_struct *mgr) 429 { 430 return 0; 431 } 432 433 static inline int security_binder_transaction(struct task_struct *from, 434 struct task_struct *to) 435 { 436 return 0; 437 } 438 439 static inline int security_binder_transfer_binder(struct task_struct *from, 440 struct task_struct *to) 441 { 442 return 0; 443 } 444 445 static inline int security_binder_transfer_file(struct task_struct *from, 446 struct task_struct *to, 447 struct file *file) 448 { 449 return 0; 450 } 451 452 static inline int security_ptrace_access_check(struct task_struct *child, 453 unsigned int mode) 454 { 455 return cap_ptrace_access_check(child, mode); 456 } 457 458 static inline int security_ptrace_traceme(struct task_struct *parent) 459 { 460 return cap_ptrace_traceme(parent); 461 } 462 463 static inline int security_capget(struct task_struct *target, 464 kernel_cap_t *effective, 465 kernel_cap_t *inheritable, 466 kernel_cap_t *permitted) 467 { 468 return cap_capget(target, effective, inheritable, permitted); 469 } 470 471 static inline int security_capset(struct cred *new, 472 const struct cred *old, 473 const kernel_cap_t *effective, 474 const kernel_cap_t *inheritable, 475 const kernel_cap_t *permitted) 476 { 477 return cap_capset(new, old, effective, inheritable, permitted); 478 } 479 480 static inline int security_capable(const struct cred *cred, 481 struct user_namespace *ns, int cap) 482 { 483 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT); 484 } 485 486 static inline int security_capable_noaudit(const struct cred *cred, 487 struct user_namespace *ns, int cap) { 488 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); 489 } 490 491 static inline int security_quotactl(int cmds, int type, int id, 492 struct super_block *sb) 493 { 494 return 0; 495 } 496 497 static inline int security_quota_on(struct dentry *dentry) 498 { 499 return 0; 500 } 501 502 static inline int security_syslog(int type) 503 { 504 return 0; 505 } 506 507 static inline int security_settime64(const struct timespec64 *ts, 508 const struct timezone *tz) 509 { 510 return cap_settime(ts, tz); 511 } 512 513 static inline int security_settime(const struct timespec *ts, 514 const struct timezone *tz) 515 { 516 struct timespec64 ts64 = timespec_to_timespec64(*ts); 517 518 return cap_settime(&ts64, tz); 519 } 520 521 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 522 { 523 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages)); 524 } 525 526 static inline int security_bprm_set_creds(struct linux_binprm *bprm) 527 { 528 return cap_bprm_set_creds(bprm); 529 } 530 531 static inline int security_bprm_check(struct linux_binprm *bprm) 532 { 533 return 0; 534 } 535 536 static inline void security_bprm_committing_creds(struct linux_binprm *bprm) 537 { 538 } 539 540 static inline void security_bprm_committed_creds(struct linux_binprm *bprm) 541 { 542 } 543 544 static inline int security_bprm_secureexec(struct linux_binprm *bprm) 545 { 546 return cap_bprm_secureexec(bprm); 547 } 548 549 static inline int security_sb_alloc(struct super_block *sb) 550 { 551 return 0; 552 } 553 554 static inline void security_sb_free(struct super_block *sb) 555 { } 556 557 static inline int security_sb_copy_data(char *orig, char *copy) 558 { 559 return 0; 560 } 561 562 static inline int security_sb_remount(struct super_block *sb, void *data) 563 { 564 return 0; 565 } 566 567 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) 568 { 569 return 0; 570 } 571 572 static inline int security_sb_show_options(struct seq_file *m, 573 struct super_block *sb) 574 { 575 return 0; 576 } 577 578 static inline int security_sb_statfs(struct dentry *dentry) 579 { 580 return 0; 581 } 582 583 static inline int security_sb_mount(const char *dev_name, const struct path *path, 584 const char *type, unsigned long flags, 585 void *data) 586 { 587 return 0; 588 } 589 590 static inline int security_sb_umount(struct vfsmount *mnt, int flags) 591 { 592 return 0; 593 } 594 595 static inline int security_sb_pivotroot(const struct path *old_path, 596 const struct path *new_path) 597 { 598 return 0; 599 } 600 601 static inline int security_sb_set_mnt_opts(struct super_block *sb, 602 struct security_mnt_opts *opts, 603 unsigned long kern_flags, 604 unsigned long *set_kern_flags) 605 { 606 return 0; 607 } 608 609 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, 610 struct super_block *newsb, 611 unsigned long kern_flags, 612 unsigned long *set_kern_flags) 613 { 614 return 0; 615 } 616 617 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 618 { 619 return 0; 620 } 621 622 static inline int security_inode_alloc(struct inode *inode) 623 { 624 return 0; 625 } 626 627 static inline void security_inode_free(struct inode *inode) 628 { } 629 630 static inline int security_dentry_init_security(struct dentry *dentry, 631 int mode, 632 const struct qstr *name, 633 void **ctx, 634 u32 *ctxlen) 635 { 636 return -EOPNOTSUPP; 637 } 638 639 static inline int security_dentry_create_files_as(struct dentry *dentry, 640 int mode, struct qstr *name, 641 const struct cred *old, 642 struct cred *new) 643 { 644 return 0; 645 } 646 647 648 static inline int security_inode_init_security(struct inode *inode, 649 struct inode *dir, 650 const struct qstr *qstr, 651 const initxattrs xattrs, 652 void *fs_data) 653 { 654 return 0; 655 } 656 657 static inline int security_old_inode_init_security(struct inode *inode, 658 struct inode *dir, 659 const struct qstr *qstr, 660 const char **name, 661 void **value, size_t *len) 662 { 663 return -EOPNOTSUPP; 664 } 665 666 static inline int security_inode_create(struct inode *dir, 667 struct dentry *dentry, 668 umode_t mode) 669 { 670 return 0; 671 } 672 673 static inline int security_inode_link(struct dentry *old_dentry, 674 struct inode *dir, 675 struct dentry *new_dentry) 676 { 677 return 0; 678 } 679 680 static inline int security_inode_unlink(struct inode *dir, 681 struct dentry *dentry) 682 { 683 return 0; 684 } 685 686 static inline int security_inode_symlink(struct inode *dir, 687 struct dentry *dentry, 688 const char *old_name) 689 { 690 return 0; 691 } 692 693 static inline int security_inode_mkdir(struct inode *dir, 694 struct dentry *dentry, 695 int mode) 696 { 697 return 0; 698 } 699 700 static inline int security_inode_rmdir(struct inode *dir, 701 struct dentry *dentry) 702 { 703 return 0; 704 } 705 706 static inline int security_inode_mknod(struct inode *dir, 707 struct dentry *dentry, 708 int mode, dev_t dev) 709 { 710 return 0; 711 } 712 713 static inline int security_inode_rename(struct inode *old_dir, 714 struct dentry *old_dentry, 715 struct inode *new_dir, 716 struct dentry *new_dentry, 717 unsigned int flags) 718 { 719 return 0; 720 } 721 722 static inline int security_inode_readlink(struct dentry *dentry) 723 { 724 return 0; 725 } 726 727 static inline int security_inode_follow_link(struct dentry *dentry, 728 struct inode *inode, 729 bool rcu) 730 { 731 return 0; 732 } 733 734 static inline int security_inode_permission(struct inode *inode, int mask) 735 { 736 return 0; 737 } 738 739 static inline int security_inode_setattr(struct dentry *dentry, 740 struct iattr *attr) 741 { 742 return 0; 743 } 744 745 static inline int security_inode_getattr(const struct path *path) 746 { 747 return 0; 748 } 749 750 static inline int security_inode_setxattr(struct dentry *dentry, 751 const char *name, const void *value, size_t size, int flags) 752 { 753 return cap_inode_setxattr(dentry, name, value, size, flags); 754 } 755 756 static inline void security_inode_post_setxattr(struct dentry *dentry, 757 const char *name, const void *value, size_t size, int flags) 758 { } 759 760 static inline int security_inode_getxattr(struct dentry *dentry, 761 const char *name) 762 { 763 return 0; 764 } 765 766 static inline int security_inode_listxattr(struct dentry *dentry) 767 { 768 return 0; 769 } 770 771 static inline int security_inode_removexattr(struct dentry *dentry, 772 const char *name) 773 { 774 return cap_inode_removexattr(dentry, name); 775 } 776 777 static inline int security_inode_need_killpriv(struct dentry *dentry) 778 { 779 return cap_inode_need_killpriv(dentry); 780 } 781 782 static inline int security_inode_killpriv(struct dentry *dentry) 783 { 784 return cap_inode_killpriv(dentry); 785 } 786 787 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) 788 { 789 return -EOPNOTSUPP; 790 } 791 792 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 793 { 794 return -EOPNOTSUPP; 795 } 796 797 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 798 { 799 return 0; 800 } 801 802 static inline void security_inode_getsecid(struct inode *inode, u32 *secid) 803 { 804 *secid = 0; 805 } 806 807 static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 808 { 809 return 0; 810 } 811 812 static inline int security_inode_copy_up_xattr(const char *name) 813 { 814 return -EOPNOTSUPP; 815 } 816 817 static inline int security_file_permission(struct file *file, int mask) 818 { 819 return 0; 820 } 821 822 static inline int security_file_alloc(struct file *file) 823 { 824 return 0; 825 } 826 827 static inline void security_file_free(struct file *file) 828 { } 829 830 static inline int security_file_ioctl(struct file *file, unsigned int cmd, 831 unsigned long arg) 832 { 833 return 0; 834 } 835 836 static inline int security_mmap_file(struct file *file, unsigned long prot, 837 unsigned long flags) 838 { 839 return 0; 840 } 841 842 static inline int security_mmap_addr(unsigned long addr) 843 { 844 return cap_mmap_addr(addr); 845 } 846 847 static inline int security_file_mprotect(struct vm_area_struct *vma, 848 unsigned long reqprot, 849 unsigned long prot) 850 { 851 return 0; 852 } 853 854 static inline int security_file_lock(struct file *file, unsigned int cmd) 855 { 856 return 0; 857 } 858 859 static inline int security_file_fcntl(struct file *file, unsigned int cmd, 860 unsigned long arg) 861 { 862 return 0; 863 } 864 865 static inline void security_file_set_fowner(struct file *file) 866 { 867 return; 868 } 869 870 static inline int security_file_send_sigiotask(struct task_struct *tsk, 871 struct fown_struct *fown, 872 int sig) 873 { 874 return 0; 875 } 876 877 static inline int security_file_receive(struct file *file) 878 { 879 return 0; 880 } 881 882 static inline int security_file_open(struct file *file, 883 const struct cred *cred) 884 { 885 return 0; 886 } 887 888 static inline int security_task_create(unsigned long clone_flags) 889 { 890 return 0; 891 } 892 893 static inline int security_task_alloc(struct task_struct *task, 894 unsigned long clone_flags) 895 { 896 return 0; 897 } 898 899 static inline void security_task_free(struct task_struct *task) 900 { } 901 902 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 903 { 904 return 0; 905 } 906 907 static inline void security_cred_free(struct cred *cred) 908 { } 909 910 static inline int security_prepare_creds(struct cred *new, 911 const struct cred *old, 912 gfp_t gfp) 913 { 914 return 0; 915 } 916 917 static inline void security_transfer_creds(struct cred *new, 918 const struct cred *old) 919 { 920 } 921 922 static inline int security_kernel_act_as(struct cred *cred, u32 secid) 923 { 924 return 0; 925 } 926 927 static inline int security_kernel_create_files_as(struct cred *cred, 928 struct inode *inode) 929 { 930 return 0; 931 } 932 933 static inline int security_kernel_module_request(char *kmod_name) 934 { 935 return 0; 936 } 937 938 static inline int security_kernel_read_file(struct file *file, 939 enum kernel_read_file_id id) 940 { 941 return 0; 942 } 943 944 static inline int security_kernel_post_read_file(struct file *file, 945 char *buf, loff_t size, 946 enum kernel_read_file_id id) 947 { 948 return 0; 949 } 950 951 static inline int security_task_fix_setuid(struct cred *new, 952 const struct cred *old, 953 int flags) 954 { 955 return cap_task_fix_setuid(new, old, flags); 956 } 957 958 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 959 { 960 return 0; 961 } 962 963 static inline int security_task_getpgid(struct task_struct *p) 964 { 965 return 0; 966 } 967 968 static inline int security_task_getsid(struct task_struct *p) 969 { 970 return 0; 971 } 972 973 static inline void security_task_getsecid(struct task_struct *p, u32 *secid) 974 { 975 *secid = 0; 976 } 977 978 static inline int security_task_setnice(struct task_struct *p, int nice) 979 { 980 return cap_task_setnice(p, nice); 981 } 982 983 static inline int security_task_setioprio(struct task_struct *p, int ioprio) 984 { 985 return cap_task_setioprio(p, ioprio); 986 } 987 988 static inline int security_task_getioprio(struct task_struct *p) 989 { 990 return 0; 991 } 992 993 static inline int security_task_prlimit(const struct cred *cred, 994 const struct cred *tcred, 995 unsigned int flags) 996 { 997 return 0; 998 } 999 1000 static inline int security_task_setrlimit(struct task_struct *p, 1001 unsigned int resource, 1002 struct rlimit *new_rlim) 1003 { 1004 return 0; 1005 } 1006 1007 static inline int security_task_setscheduler(struct task_struct *p) 1008 { 1009 return cap_task_setscheduler(p); 1010 } 1011 1012 static inline int security_task_getscheduler(struct task_struct *p) 1013 { 1014 return 0; 1015 } 1016 1017 static inline int security_task_movememory(struct task_struct *p) 1018 { 1019 return 0; 1020 } 1021 1022 static inline int security_task_kill(struct task_struct *p, 1023 struct siginfo *info, int sig, 1024 u32 secid) 1025 { 1026 return 0; 1027 } 1028 1029 static inline int security_task_prctl(int option, unsigned long arg2, 1030 unsigned long arg3, 1031 unsigned long arg4, 1032 unsigned long arg5) 1033 { 1034 return cap_task_prctl(option, arg2, arg3, arg4, arg5); 1035 } 1036 1037 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1038 { } 1039 1040 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1041 short flag) 1042 { 1043 return 0; 1044 } 1045 1046 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 1047 { 1048 *secid = 0; 1049 } 1050 1051 static inline int security_msg_msg_alloc(struct msg_msg *msg) 1052 { 1053 return 0; 1054 } 1055 1056 static inline void security_msg_msg_free(struct msg_msg *msg) 1057 { } 1058 1059 static inline int security_msg_queue_alloc(struct msg_queue *msq) 1060 { 1061 return 0; 1062 } 1063 1064 static inline void security_msg_queue_free(struct msg_queue *msq) 1065 { } 1066 1067 static inline int security_msg_queue_associate(struct msg_queue *msq, 1068 int msqflg) 1069 { 1070 return 0; 1071 } 1072 1073 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 1074 { 1075 return 0; 1076 } 1077 1078 static inline int security_msg_queue_msgsnd(struct msg_queue *msq, 1079 struct msg_msg *msg, int msqflg) 1080 { 1081 return 0; 1082 } 1083 1084 static inline int security_msg_queue_msgrcv(struct msg_queue *msq, 1085 struct msg_msg *msg, 1086 struct task_struct *target, 1087 long type, int mode) 1088 { 1089 return 0; 1090 } 1091 1092 static inline int security_shm_alloc(struct shmid_kernel *shp) 1093 { 1094 return 0; 1095 } 1096 1097 static inline void security_shm_free(struct shmid_kernel *shp) 1098 { } 1099 1100 static inline int security_shm_associate(struct shmid_kernel *shp, 1101 int shmflg) 1102 { 1103 return 0; 1104 } 1105 1106 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 1107 { 1108 return 0; 1109 } 1110 1111 static inline int security_shm_shmat(struct shmid_kernel *shp, 1112 char __user *shmaddr, int shmflg) 1113 { 1114 return 0; 1115 } 1116 1117 static inline int security_sem_alloc(struct sem_array *sma) 1118 { 1119 return 0; 1120 } 1121 1122 static inline void security_sem_free(struct sem_array *sma) 1123 { } 1124 1125 static inline int security_sem_associate(struct sem_array *sma, int semflg) 1126 { 1127 return 0; 1128 } 1129 1130 static inline int security_sem_semctl(struct sem_array *sma, int cmd) 1131 { 1132 return 0; 1133 } 1134 1135 static inline int security_sem_semop(struct sem_array *sma, 1136 struct sembuf *sops, unsigned nsops, 1137 int alter) 1138 { 1139 return 0; 1140 } 1141 1142 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) 1143 { } 1144 1145 static inline int security_getprocattr(struct task_struct *p, char *name, char **value) 1146 { 1147 return -EINVAL; 1148 } 1149 1150 static inline int security_setprocattr(char *name, void *value, size_t size) 1151 { 1152 return -EINVAL; 1153 } 1154 1155 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1156 { 1157 return 0; 1158 } 1159 1160 static inline int security_ismaclabel(const char *name) 1161 { 1162 return 0; 1163 } 1164 1165 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 1166 { 1167 return -EOPNOTSUPP; 1168 } 1169 1170 static inline int security_secctx_to_secid(const char *secdata, 1171 u32 seclen, 1172 u32 *secid) 1173 { 1174 return -EOPNOTSUPP; 1175 } 1176 1177 static inline void security_release_secctx(char *secdata, u32 seclen) 1178 { 1179 } 1180 1181 static inline void security_inode_invalidate_secctx(struct inode *inode) 1182 { 1183 } 1184 1185 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1186 { 1187 return -EOPNOTSUPP; 1188 } 1189 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1190 { 1191 return -EOPNOTSUPP; 1192 } 1193 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1194 { 1195 return -EOPNOTSUPP; 1196 } 1197 #endif /* CONFIG_SECURITY */ 1198 1199 #ifdef CONFIG_SECURITY_NETWORK 1200 1201 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1202 int security_unix_may_send(struct socket *sock, struct socket *other); 1203 int security_socket_create(int family, int type, int protocol, int kern); 1204 int security_socket_post_create(struct socket *sock, int family, 1205 int type, int protocol, int kern); 1206 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1207 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1208 int security_socket_listen(struct socket *sock, int backlog); 1209 int security_socket_accept(struct socket *sock, struct socket *newsock); 1210 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1211 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1212 int size, int flags); 1213 int security_socket_getsockname(struct socket *sock); 1214 int security_socket_getpeername(struct socket *sock); 1215 int security_socket_getsockopt(struct socket *sock, int level, int optname); 1216 int security_socket_setsockopt(struct socket *sock, int level, int optname); 1217 int security_socket_shutdown(struct socket *sock, int how); 1218 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1219 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1220 int __user *optlen, unsigned len); 1221 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1222 int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1223 void security_sk_free(struct sock *sk); 1224 void security_sk_clone(const struct sock *sk, struct sock *newsk); 1225 void security_sk_classify_flow(struct sock *sk, struct flowi *fl); 1226 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); 1227 void security_sock_graft(struct sock*sk, struct socket *parent); 1228 int security_inet_conn_request(struct sock *sk, 1229 struct sk_buff *skb, struct request_sock *req); 1230 void security_inet_csk_clone(struct sock *newsk, 1231 const struct request_sock *req); 1232 void security_inet_conn_established(struct sock *sk, 1233 struct sk_buff *skb); 1234 int security_secmark_relabel_packet(u32 secid); 1235 void security_secmark_refcount_inc(void); 1236 void security_secmark_refcount_dec(void); 1237 int security_tun_dev_alloc_security(void **security); 1238 void security_tun_dev_free_security(void *security); 1239 int security_tun_dev_create(void); 1240 int security_tun_dev_attach_queue(void *security); 1241 int security_tun_dev_attach(struct sock *sk, void *security); 1242 int security_tun_dev_open(void *security); 1243 1244 #else /* CONFIG_SECURITY_NETWORK */ 1245 static inline int security_unix_stream_connect(struct sock *sock, 1246 struct sock *other, 1247 struct sock *newsk) 1248 { 1249 return 0; 1250 } 1251 1252 static inline int security_unix_may_send(struct socket *sock, 1253 struct socket *other) 1254 { 1255 return 0; 1256 } 1257 1258 static inline int security_socket_create(int family, int type, 1259 int protocol, int kern) 1260 { 1261 return 0; 1262 } 1263 1264 static inline int security_socket_post_create(struct socket *sock, 1265 int family, 1266 int type, 1267 int protocol, int kern) 1268 { 1269 return 0; 1270 } 1271 1272 static inline int security_socket_bind(struct socket *sock, 1273 struct sockaddr *address, 1274 int addrlen) 1275 { 1276 return 0; 1277 } 1278 1279 static inline int security_socket_connect(struct socket *sock, 1280 struct sockaddr *address, 1281 int addrlen) 1282 { 1283 return 0; 1284 } 1285 1286 static inline int security_socket_listen(struct socket *sock, int backlog) 1287 { 1288 return 0; 1289 } 1290 1291 static inline int security_socket_accept(struct socket *sock, 1292 struct socket *newsock) 1293 { 1294 return 0; 1295 } 1296 1297 static inline int security_socket_sendmsg(struct socket *sock, 1298 struct msghdr *msg, int size) 1299 { 1300 return 0; 1301 } 1302 1303 static inline int security_socket_recvmsg(struct socket *sock, 1304 struct msghdr *msg, int size, 1305 int flags) 1306 { 1307 return 0; 1308 } 1309 1310 static inline int security_socket_getsockname(struct socket *sock) 1311 { 1312 return 0; 1313 } 1314 1315 static inline int security_socket_getpeername(struct socket *sock) 1316 { 1317 return 0; 1318 } 1319 1320 static inline int security_socket_getsockopt(struct socket *sock, 1321 int level, int optname) 1322 { 1323 return 0; 1324 } 1325 1326 static inline int security_socket_setsockopt(struct socket *sock, 1327 int level, int optname) 1328 { 1329 return 0; 1330 } 1331 1332 static inline int security_socket_shutdown(struct socket *sock, int how) 1333 { 1334 return 0; 1335 } 1336 static inline int security_sock_rcv_skb(struct sock *sk, 1337 struct sk_buff *skb) 1338 { 1339 return 0; 1340 } 1341 1342 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1343 int __user *optlen, unsigned len) 1344 { 1345 return -ENOPROTOOPT; 1346 } 1347 1348 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1349 { 1350 return -ENOPROTOOPT; 1351 } 1352 1353 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1354 { 1355 return 0; 1356 } 1357 1358 static inline void security_sk_free(struct sock *sk) 1359 { 1360 } 1361 1362 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1363 { 1364 } 1365 1366 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 1367 { 1368 } 1369 1370 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 1371 { 1372 } 1373 1374 static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1375 { 1376 } 1377 1378 static inline int security_inet_conn_request(struct sock *sk, 1379 struct sk_buff *skb, struct request_sock *req) 1380 { 1381 return 0; 1382 } 1383 1384 static inline void security_inet_csk_clone(struct sock *newsk, 1385 const struct request_sock *req) 1386 { 1387 } 1388 1389 static inline void security_inet_conn_established(struct sock *sk, 1390 struct sk_buff *skb) 1391 { 1392 } 1393 1394 static inline int security_secmark_relabel_packet(u32 secid) 1395 { 1396 return 0; 1397 } 1398 1399 static inline void security_secmark_refcount_inc(void) 1400 { 1401 } 1402 1403 static inline void security_secmark_refcount_dec(void) 1404 { 1405 } 1406 1407 static inline int security_tun_dev_alloc_security(void **security) 1408 { 1409 return 0; 1410 } 1411 1412 static inline void security_tun_dev_free_security(void *security) 1413 { 1414 } 1415 1416 static inline int security_tun_dev_create(void) 1417 { 1418 return 0; 1419 } 1420 1421 static inline int security_tun_dev_attach_queue(void *security) 1422 { 1423 return 0; 1424 } 1425 1426 static inline int security_tun_dev_attach(struct sock *sk, void *security) 1427 { 1428 return 0; 1429 } 1430 1431 static inline int security_tun_dev_open(void *security) 1432 { 1433 return 0; 1434 } 1435 #endif /* CONFIG_SECURITY_NETWORK */ 1436 1437 #ifdef CONFIG_SECURITY_INFINIBAND 1438 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1439 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1440 int security_ib_alloc_security(void **sec); 1441 void security_ib_free_security(void *sec); 1442 #else /* CONFIG_SECURITY_INFINIBAND */ 1443 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1444 { 1445 return 0; 1446 } 1447 1448 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1449 { 1450 return 0; 1451 } 1452 1453 static inline int security_ib_alloc_security(void **sec) 1454 { 1455 return 0; 1456 } 1457 1458 static inline void security_ib_free_security(void *sec) 1459 { 1460 } 1461 #endif /* CONFIG_SECURITY_INFINIBAND */ 1462 1463 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1464 1465 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1466 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1467 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1468 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1469 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1470 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1471 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1472 struct xfrm_sec_ctx *polsec, u32 secid); 1473 int security_xfrm_state_delete(struct xfrm_state *x); 1474 void security_xfrm_state_free(struct xfrm_state *x); 1475 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); 1476 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1477 struct xfrm_policy *xp, 1478 const struct flowi *fl); 1479 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1480 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); 1481 1482 #else /* CONFIG_SECURITY_NETWORK_XFRM */ 1483 1484 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1485 struct xfrm_user_sec_ctx *sec_ctx, 1486 gfp_t gfp) 1487 { 1488 return 0; 1489 } 1490 1491 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1492 { 1493 return 0; 1494 } 1495 1496 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1497 { 1498 } 1499 1500 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1501 { 1502 return 0; 1503 } 1504 1505 static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1506 struct xfrm_user_sec_ctx *sec_ctx) 1507 { 1508 return 0; 1509 } 1510 1511 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1512 struct xfrm_sec_ctx *polsec, u32 secid) 1513 { 1514 return 0; 1515 } 1516 1517 static inline void security_xfrm_state_free(struct xfrm_state *x) 1518 { 1519 } 1520 1521 static inline int security_xfrm_state_delete(struct xfrm_state *x) 1522 { 1523 return 0; 1524 } 1525 1526 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1527 { 1528 return 0; 1529 } 1530 1531 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1532 struct xfrm_policy *xp, const struct flowi *fl) 1533 { 1534 return 1; 1535 } 1536 1537 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1538 { 1539 return 0; 1540 } 1541 1542 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1543 { 1544 } 1545 1546 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1547 1548 #ifdef CONFIG_SECURITY_PATH 1549 int security_path_unlink(const struct path *dir, struct dentry *dentry); 1550 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 1551 int security_path_rmdir(const struct path *dir, struct dentry *dentry); 1552 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 1553 unsigned int dev); 1554 int security_path_truncate(const struct path *path); 1555 int security_path_symlink(const struct path *dir, struct dentry *dentry, 1556 const char *old_name); 1557 int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 1558 struct dentry *new_dentry); 1559 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, 1560 const struct path *new_dir, struct dentry *new_dentry, 1561 unsigned int flags); 1562 int security_path_chmod(const struct path *path, umode_t mode); 1563 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 1564 int security_path_chroot(const struct path *path); 1565 #else /* CONFIG_SECURITY_PATH */ 1566 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 1567 { 1568 return 0; 1569 } 1570 1571 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 1572 umode_t mode) 1573 { 1574 return 0; 1575 } 1576 1577 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 1578 { 1579 return 0; 1580 } 1581 1582 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, 1583 umode_t mode, unsigned int dev) 1584 { 1585 return 0; 1586 } 1587 1588 static inline int security_path_truncate(const struct path *path) 1589 { 1590 return 0; 1591 } 1592 1593 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 1594 const char *old_name) 1595 { 1596 return 0; 1597 } 1598 1599 static inline int security_path_link(struct dentry *old_dentry, 1600 const struct path *new_dir, 1601 struct dentry *new_dentry) 1602 { 1603 return 0; 1604 } 1605 1606 static inline int security_path_rename(const struct path *old_dir, 1607 struct dentry *old_dentry, 1608 const struct path *new_dir, 1609 struct dentry *new_dentry, 1610 unsigned int flags) 1611 { 1612 return 0; 1613 } 1614 1615 static inline int security_path_chmod(const struct path *path, umode_t mode) 1616 { 1617 return 0; 1618 } 1619 1620 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 1621 { 1622 return 0; 1623 } 1624 1625 static inline int security_path_chroot(const struct path *path) 1626 { 1627 return 0; 1628 } 1629 #endif /* CONFIG_SECURITY_PATH */ 1630 1631 #ifdef CONFIG_KEYS 1632 #ifdef CONFIG_SECURITY 1633 1634 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 1635 void security_key_free(struct key *key); 1636 int security_key_permission(key_ref_t key_ref, 1637 const struct cred *cred, unsigned perm); 1638 int security_key_getsecurity(struct key *key, char **_buffer); 1639 1640 #else 1641 1642 static inline int security_key_alloc(struct key *key, 1643 const struct cred *cred, 1644 unsigned long flags) 1645 { 1646 return 0; 1647 } 1648 1649 static inline void security_key_free(struct key *key) 1650 { 1651 } 1652 1653 static inline int security_key_permission(key_ref_t key_ref, 1654 const struct cred *cred, 1655 unsigned perm) 1656 { 1657 return 0; 1658 } 1659 1660 static inline int security_key_getsecurity(struct key *key, char **_buffer) 1661 { 1662 *_buffer = NULL; 1663 return 0; 1664 } 1665 1666 #endif 1667 #endif /* CONFIG_KEYS */ 1668 1669 #ifdef CONFIG_AUDIT 1670 #ifdef CONFIG_SECURITY 1671 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); 1672 int security_audit_rule_known(struct audit_krule *krule); 1673 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, 1674 struct audit_context *actx); 1675 void security_audit_rule_free(void *lsmrule); 1676 1677 #else 1678 1679 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 1680 void **lsmrule) 1681 { 1682 return 0; 1683 } 1684 1685 static inline int security_audit_rule_known(struct audit_krule *krule) 1686 { 1687 return 0; 1688 } 1689 1690 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, 1691 void *lsmrule, struct audit_context *actx) 1692 { 1693 return 0; 1694 } 1695 1696 static inline void security_audit_rule_free(void *lsmrule) 1697 { } 1698 1699 #endif /* CONFIG_SECURITY */ 1700 #endif /* CONFIG_AUDIT */ 1701 1702 #ifdef CONFIG_SECURITYFS 1703 1704 extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 1705 struct dentry *parent, void *data, 1706 const struct file_operations *fops); 1707 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 1708 struct dentry *securityfs_create_symlink(const char *name, 1709 struct dentry *parent, 1710 const char *target, 1711 const struct inode_operations *iops); 1712 extern void securityfs_remove(struct dentry *dentry); 1713 1714 #else /* CONFIG_SECURITYFS */ 1715 1716 static inline struct dentry *securityfs_create_dir(const char *name, 1717 struct dentry *parent) 1718 { 1719 return ERR_PTR(-ENODEV); 1720 } 1721 1722 static inline struct dentry *securityfs_create_file(const char *name, 1723 umode_t mode, 1724 struct dentry *parent, 1725 void *data, 1726 const struct file_operations *fops) 1727 { 1728 return ERR_PTR(-ENODEV); 1729 } 1730 1731 static inline struct dentry *securityfs_create_symlink(const char *name, 1732 struct dentry *parent, 1733 const char *target, 1734 const struct inode_operations *iops) 1735 { 1736 return ERR_PTR(-ENODEV); 1737 } 1738 1739 static inline void securityfs_remove(struct dentry *dentry) 1740 {} 1741 1742 #endif 1743 1744 #ifdef CONFIG_SECURITY 1745 1746 static inline char *alloc_secdata(void) 1747 { 1748 return (char *)get_zeroed_page(GFP_KERNEL); 1749 } 1750 1751 static inline void free_secdata(void *secdata) 1752 { 1753 free_page((unsigned long)secdata); 1754 } 1755 1756 #else 1757 1758 static inline char *alloc_secdata(void) 1759 { 1760 return (char *)1; 1761 } 1762 1763 static inline void free_secdata(void *secdata) 1764 { } 1765 #endif /* CONFIG_SECURITY */ 1766 1767 #endif /* ! __LINUX_SECURITY_H */ 1768 1769