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