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 #include <linux/sockptr.h> 35 #include <linux/bpf.h> 36 #include <uapi/linux/lsm.h> 37 #include <linux/lsm/selinux.h> 38 #include <linux/lsm/smack.h> 39 #include <linux/lsm/apparmor.h> 40 #include <linux/lsm/bpf.h> 41 42 struct linux_binprm; 43 struct cred; 44 struct rlimit; 45 struct kernel_siginfo; 46 struct sembuf; 47 struct kern_ipc_perm; 48 struct audit_context; 49 struct super_block; 50 struct inode; 51 struct dentry; 52 struct file; 53 struct vfsmount; 54 struct path; 55 struct qstr; 56 struct iattr; 57 struct fown_struct; 58 struct file_operations; 59 struct msg_msg; 60 struct xattr; 61 struct kernfs_node; 62 struct xfrm_sec_ctx; 63 struct mm_struct; 64 struct fs_context; 65 struct fs_parameter; 66 enum fs_value_type; 67 struct watch; 68 struct watch_notification; 69 struct lsm_ctx; 70 71 /* Default (no) options for the capable function */ 72 #define CAP_OPT_NONE 0x0 73 /* If capable should audit the security request */ 74 #define CAP_OPT_NOAUDIT BIT(1) 75 /* If capable is being called by a setid function */ 76 #define CAP_OPT_INSETID BIT(2) 77 78 /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */ 79 #define SECURITY_LSM_NATIVE_LABELS 1 80 81 struct ctl_table; 82 struct audit_krule; 83 struct user_namespace; 84 struct timezone; 85 86 enum lsm_event { 87 LSM_POLICY_CHANGE, 88 }; 89 90 struct dm_verity_digest { 91 const char *alg; 92 const u8 *digest; 93 size_t digest_len; 94 }; 95 96 enum lsm_integrity_type { 97 LSM_INT_DMVERITY_SIG_VALID, 98 LSM_INT_DMVERITY_ROOTHASH, 99 LSM_INT_FSVERITY_BUILTINSIG_VALID, 100 }; 101 102 /* 103 * These are reasons that can be passed to the security_locked_down() 104 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the 105 * ability for userland to modify kernel code) are placed before 106 * LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel 107 * confidentiality (ie, the ability for userland to extract 108 * information from the running kernel that would otherwise be 109 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX. 110 * 111 * LSM authors should note that the semantics of any given lockdown 112 * reason are not guaranteed to be stable - the same reason may block 113 * one set of features in one kernel release, and a slightly different 114 * set of features in a later kernel release. LSMs that seek to expose 115 * lockdown policy at any level of granularity other than "none", 116 * "integrity" or "confidentiality" are responsible for either 117 * ensuring that they expose a consistent level of functionality to 118 * userland, or ensuring that userland is aware that this is 119 * potentially a moving target. It is easy to misuse this information 120 * in a way that could break userspace. Please be careful not to do 121 * so. 122 * 123 * If you add to this, remember to extend lockdown_reasons in 124 * security/lockdown/lockdown.c. 125 */ 126 enum lockdown_reason { 127 LOCKDOWN_NONE, 128 LOCKDOWN_MODULE_SIGNATURE, 129 LOCKDOWN_DEV_MEM, 130 LOCKDOWN_EFI_TEST, 131 LOCKDOWN_KEXEC, 132 LOCKDOWN_HIBERNATION, 133 LOCKDOWN_PCI_ACCESS, 134 LOCKDOWN_IOPORT, 135 LOCKDOWN_MSR, 136 LOCKDOWN_ACPI_TABLES, 137 LOCKDOWN_DEVICE_TREE, 138 LOCKDOWN_PCMCIA_CIS, 139 LOCKDOWN_TIOCSSERIAL, 140 LOCKDOWN_MODULE_PARAMETERS, 141 LOCKDOWN_MMIOTRACE, 142 LOCKDOWN_DEBUGFS, 143 LOCKDOWN_XMON_WR, 144 LOCKDOWN_BPF_WRITE_USER, 145 LOCKDOWN_DBG_WRITE_KERNEL, 146 LOCKDOWN_RTAS_ERROR_INJECTION, 147 LOCKDOWN_INTEGRITY_MAX, 148 LOCKDOWN_KCORE, 149 LOCKDOWN_KPROBES, 150 LOCKDOWN_BPF_READ_KERNEL, 151 LOCKDOWN_DBG_READ_KERNEL, 152 LOCKDOWN_PERF, 153 LOCKDOWN_TRACEFS, 154 LOCKDOWN_XMON_RW, 155 LOCKDOWN_XFRM_SECRET, 156 LOCKDOWN_CONFIDENTIALITY_MAX, 157 }; 158 159 /* scaffolding */ 160 struct lsm_prop_scaffold { 161 u32 secid; 162 }; 163 164 /* 165 * Data exported by the security modules 166 */ 167 struct lsm_prop { 168 struct lsm_prop_selinux selinux; 169 struct lsm_prop_smack smack; 170 struct lsm_prop_apparmor apparmor; 171 struct lsm_prop_bpf bpf; 172 struct lsm_prop_scaffold scaffold; 173 }; 174 175 extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1]; 176 extern u32 lsm_active_cnt; 177 extern const struct lsm_id *lsm_idlist[]; 178 179 /* These functions are in security/commoncap.c */ 180 extern int cap_capable(const struct cred *cred, struct user_namespace *ns, 181 int cap, unsigned int opts); 182 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz); 183 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); 184 extern int cap_ptrace_traceme(struct task_struct *parent); 185 extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective, 186 kernel_cap_t *inheritable, kernel_cap_t *permitted); 187 extern int cap_capset(struct cred *new, const struct cred *old, 188 const kernel_cap_t *effective, 189 const kernel_cap_t *inheritable, 190 const kernel_cap_t *permitted); 191 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 192 int cap_inode_setxattr(struct dentry *dentry, const char *name, 193 const void *value, size_t size, int flags); 194 int cap_inode_removexattr(struct mnt_idmap *idmap, 195 struct dentry *dentry, const char *name); 196 int cap_inode_need_killpriv(struct dentry *dentry); 197 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 198 int cap_inode_getsecurity(struct mnt_idmap *idmap, 199 struct inode *inode, const char *name, void **buffer, 200 bool alloc); 201 extern int cap_mmap_addr(unsigned long addr); 202 extern int cap_mmap_file(struct file *file, unsigned long reqprot, 203 unsigned long prot, unsigned long flags); 204 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); 205 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, 206 unsigned long arg4, unsigned long arg5); 207 extern int cap_task_setscheduler(struct task_struct *p); 208 extern int cap_task_setioprio(struct task_struct *p, int ioprio); 209 extern int cap_task_setnice(struct task_struct *p, int nice); 210 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); 211 212 struct msghdr; 213 struct sk_buff; 214 struct sock; 215 struct sockaddr; 216 struct socket; 217 struct flowi_common; 218 struct dst_entry; 219 struct xfrm_selector; 220 struct xfrm_policy; 221 struct xfrm_state; 222 struct xfrm_user_sec_ctx; 223 struct seq_file; 224 struct sctp_association; 225 226 #ifdef CONFIG_MMU 227 extern unsigned long mmap_min_addr; 228 extern unsigned long dac_mmap_min_addr; 229 #else 230 #define mmap_min_addr 0UL 231 #define dac_mmap_min_addr 0UL 232 #endif 233 234 /* 235 * Values used in the task_security_ops calls 236 */ 237 /* setuid or setgid, id0 == uid or gid */ 238 #define LSM_SETID_ID 1 239 240 /* setreuid or setregid, id0 == real, id1 == eff */ 241 #define LSM_SETID_RE 2 242 243 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ 244 #define LSM_SETID_RES 4 245 246 /* setfsuid or setfsgid, id0 == fsuid or fsgid */ 247 #define LSM_SETID_FS 8 248 249 /* Flags for security_task_prlimit(). */ 250 #define LSM_PRLIMIT_READ 1 251 #define LSM_PRLIMIT_WRITE 2 252 253 /* forward declares to avoid warnings */ 254 struct sched_param; 255 struct request_sock; 256 257 /* bprm->unsafe reasons */ 258 #define LSM_UNSAFE_SHARE 1 259 #define LSM_UNSAFE_PTRACE 2 260 #define LSM_UNSAFE_NO_NEW_PRIVS 4 261 262 #ifdef CONFIG_MMU 263 extern int mmap_min_addr_handler(const struct ctl_table *table, int write, 264 void *buffer, size_t *lenp, loff_t *ppos); 265 #endif 266 267 /* security_inode_init_security callback function to write xattrs */ 268 typedef int (*initxattrs) (struct inode *inode, 269 const struct xattr *xattr_array, void *fs_data); 270 271 272 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */ 273 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM, 274 #define __data_id_stringify(dummy, str) #str, 275 276 enum kernel_load_data_id { 277 __kernel_read_file_id(__data_id_enumify) 278 }; 279 280 static const char * const kernel_load_data_str[] = { 281 __kernel_read_file_id(__data_id_stringify) 282 }; 283 284 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id) 285 { 286 if ((unsigned)id >= LOADING_MAX_ID) 287 return kernel_load_data_str[LOADING_UNKNOWN]; 288 289 return kernel_load_data_str[id]; 290 } 291 292 /** 293 * lsmprop_init - initialize a lsm_prop structure 294 * @prop: Pointer to the data to initialize 295 * 296 * Set all secid for all modules to the specified value. 297 */ 298 static inline void lsmprop_init(struct lsm_prop *prop) 299 { 300 memset(prop, 0, sizeof(*prop)); 301 } 302 303 #ifdef CONFIG_SECURITY 304 305 /** 306 * lsmprop_is_set - report if there is a value in the lsm_prop 307 * @prop: Pointer to the exported LSM data 308 * 309 * Returns true if there is a value set, false otherwise 310 */ 311 static inline bool lsmprop_is_set(struct lsm_prop *prop) 312 { 313 const struct lsm_prop empty = {}; 314 315 return !!memcmp(prop, &empty, sizeof(*prop)); 316 } 317 318 int call_blocking_lsm_notifier(enum lsm_event event, void *data); 319 int register_blocking_lsm_notifier(struct notifier_block *nb); 320 int unregister_blocking_lsm_notifier(struct notifier_block *nb); 321 322 /* prototypes */ 323 extern int security_init(void); 324 extern int early_security_init(void); 325 extern u64 lsm_name_to_attr(const char *name); 326 327 /* Security operations */ 328 int security_binder_set_context_mgr(const struct cred *mgr); 329 int security_binder_transaction(const struct cred *from, 330 const struct cred *to); 331 int security_binder_transfer_binder(const struct cred *from, 332 const struct cred *to); 333 int security_binder_transfer_file(const struct cred *from, 334 const struct cred *to, const struct file *file); 335 int security_ptrace_access_check(struct task_struct *child, unsigned int mode); 336 int security_ptrace_traceme(struct task_struct *parent); 337 int security_capget(const struct task_struct *target, 338 kernel_cap_t *effective, 339 kernel_cap_t *inheritable, 340 kernel_cap_t *permitted); 341 int security_capset(struct cred *new, const struct cred *old, 342 const kernel_cap_t *effective, 343 const kernel_cap_t *inheritable, 344 const kernel_cap_t *permitted); 345 int security_capable(const struct cred *cred, 346 struct user_namespace *ns, 347 int cap, 348 unsigned int opts); 349 int security_quotactl(int cmds, int type, int id, const struct super_block *sb); 350 int security_quota_on(struct dentry *dentry); 351 int security_syslog(int type); 352 int security_settime64(const struct timespec64 *ts, const struct timezone *tz); 353 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); 354 int security_bprm_creds_for_exec(struct linux_binprm *bprm); 355 int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 356 int security_bprm_check(struct linux_binprm *bprm); 357 void security_bprm_committing_creds(const struct linux_binprm *bprm); 358 void security_bprm_committed_creds(const struct linux_binprm *bprm); 359 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference); 360 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc); 361 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param); 362 int security_sb_alloc(struct super_block *sb); 363 void security_sb_delete(struct super_block *sb); 364 void security_sb_free(struct super_block *sb); 365 void security_free_mnt_opts(void **mnt_opts); 366 int security_sb_eat_lsm_opts(char *options, void **mnt_opts); 367 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts); 368 int security_sb_remount(struct super_block *sb, void *mnt_opts); 369 int security_sb_kern_mount(const struct super_block *sb); 370 int security_sb_show_options(struct seq_file *m, struct super_block *sb); 371 int security_sb_statfs(struct dentry *dentry); 372 int security_sb_mount(const char *dev_name, const struct path *path, 373 const char *type, unsigned long flags, void *data); 374 int security_sb_umount(struct vfsmount *mnt, int flags); 375 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path); 376 int security_sb_set_mnt_opts(struct super_block *sb, 377 void *mnt_opts, 378 unsigned long kern_flags, 379 unsigned long *set_kern_flags); 380 int security_sb_clone_mnt_opts(const struct super_block *oldsb, 381 struct super_block *newsb, 382 unsigned long kern_flags, 383 unsigned long *set_kern_flags); 384 int security_move_mount(const struct path *from_path, const struct path *to_path); 385 int security_dentry_init_security(struct dentry *dentry, int mode, 386 const struct qstr *name, 387 const char **xattr_name, void **ctx, 388 u32 *ctxlen); 389 int security_dentry_create_files_as(struct dentry *dentry, int mode, 390 struct qstr *name, 391 const struct cred *old, 392 struct cred *new); 393 int security_path_notify(const struct path *path, u64 mask, 394 unsigned int obj_type); 395 int security_inode_alloc(struct inode *inode); 396 void security_inode_free(struct inode *inode); 397 int security_inode_init_security(struct inode *inode, struct inode *dir, 398 const struct qstr *qstr, 399 initxattrs initxattrs, void *fs_data); 400 int security_inode_init_security_anon(struct inode *inode, 401 const struct qstr *name, 402 const struct inode *context_inode); 403 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode); 404 void security_inode_post_create_tmpfile(struct mnt_idmap *idmap, 405 struct inode *inode); 406 int security_inode_link(struct dentry *old_dentry, struct inode *dir, 407 struct dentry *new_dentry); 408 int security_inode_unlink(struct inode *dir, struct dentry *dentry); 409 int security_inode_symlink(struct inode *dir, struct dentry *dentry, 410 const char *old_name); 411 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode); 412 int security_inode_rmdir(struct inode *dir, struct dentry *dentry); 413 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev); 414 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 415 struct inode *new_dir, struct dentry *new_dentry, 416 unsigned int flags); 417 int security_inode_readlink(struct dentry *dentry); 418 int security_inode_follow_link(struct dentry *dentry, struct inode *inode, 419 bool rcu); 420 int security_inode_permission(struct inode *inode, int mask); 421 int security_inode_setattr(struct mnt_idmap *idmap, 422 struct dentry *dentry, struct iattr *attr); 423 void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 424 int ia_valid); 425 int security_inode_getattr(const struct path *path); 426 int security_inode_setxattr(struct mnt_idmap *idmap, 427 struct dentry *dentry, const char *name, 428 const void *value, size_t size, int flags); 429 int security_inode_set_acl(struct mnt_idmap *idmap, 430 struct dentry *dentry, const char *acl_name, 431 struct posix_acl *kacl); 432 void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name, 433 struct posix_acl *kacl); 434 int security_inode_get_acl(struct mnt_idmap *idmap, 435 struct dentry *dentry, const char *acl_name); 436 int security_inode_remove_acl(struct mnt_idmap *idmap, 437 struct dentry *dentry, const char *acl_name); 438 void security_inode_post_remove_acl(struct mnt_idmap *idmap, 439 struct dentry *dentry, 440 const char *acl_name); 441 void security_inode_post_setxattr(struct dentry *dentry, const char *name, 442 const void *value, size_t size, int flags); 443 int security_inode_getxattr(struct dentry *dentry, const char *name); 444 int security_inode_listxattr(struct dentry *dentry); 445 int security_inode_removexattr(struct mnt_idmap *idmap, 446 struct dentry *dentry, const char *name); 447 void security_inode_post_removexattr(struct dentry *dentry, const char *name); 448 int security_inode_need_killpriv(struct dentry *dentry); 449 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 450 int security_inode_getsecurity(struct mnt_idmap *idmap, 451 struct inode *inode, const char *name, 452 void **buffer, bool alloc); 453 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); 454 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); 455 void security_inode_getlsmprop(struct inode *inode, struct lsm_prop *prop); 456 int security_inode_copy_up(struct dentry *src, struct cred **new); 457 int security_inode_copy_up_xattr(struct dentry *src, const char *name); 458 int security_inode_setintegrity(const struct inode *inode, 459 enum lsm_integrity_type type, const void *value, 460 size_t size); 461 int security_kernfs_init_security(struct kernfs_node *kn_dir, 462 struct kernfs_node *kn); 463 int security_file_permission(struct file *file, int mask); 464 int security_file_alloc(struct file *file); 465 void security_file_release(struct file *file); 466 void security_file_free(struct file *file); 467 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 468 int security_file_ioctl_compat(struct file *file, unsigned int cmd, 469 unsigned long arg); 470 int security_mmap_file(struct file *file, unsigned long prot, 471 unsigned long flags); 472 int security_mmap_addr(unsigned long addr); 473 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 474 unsigned long prot); 475 int security_file_lock(struct file *file, unsigned int cmd); 476 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); 477 void security_file_set_fowner(struct file *file); 478 int security_file_send_sigiotask(struct task_struct *tsk, 479 struct fown_struct *fown, int sig); 480 int security_file_receive(struct file *file); 481 int security_file_open(struct file *file); 482 int security_file_post_open(struct file *file, int mask); 483 int security_file_truncate(struct file *file); 484 int security_task_alloc(struct task_struct *task, unsigned long clone_flags); 485 void security_task_free(struct task_struct *task); 486 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); 487 void security_cred_free(struct cred *cred); 488 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); 489 void security_transfer_creds(struct cred *new, const struct cred *old); 490 void security_cred_getsecid(const struct cred *c, u32 *secid); 491 int security_kernel_act_as(struct cred *new, u32 secid); 492 int security_kernel_create_files_as(struct cred *new, struct inode *inode); 493 int security_kernel_module_request(char *kmod_name); 494 int security_kernel_load_data(enum kernel_load_data_id id, bool contents); 495 int security_kernel_post_load_data(char *buf, loff_t size, 496 enum kernel_load_data_id id, 497 char *description); 498 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id, 499 bool contents); 500 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 501 enum kernel_read_file_id id); 502 int security_task_fix_setuid(struct cred *new, const struct cred *old, 503 int flags); 504 int security_task_fix_setgid(struct cred *new, const struct cred *old, 505 int flags); 506 int security_task_fix_setgroups(struct cred *new, const struct cred *old); 507 int security_task_setpgid(struct task_struct *p, pid_t pgid); 508 int security_task_getpgid(struct task_struct *p); 509 int security_task_getsid(struct task_struct *p); 510 void security_current_getlsmprop_subj(struct lsm_prop *prop); 511 void security_task_getlsmprop_obj(struct task_struct *p, struct lsm_prop *prop); 512 int security_task_setnice(struct task_struct *p, int nice); 513 int security_task_setioprio(struct task_struct *p, int ioprio); 514 int security_task_getioprio(struct task_struct *p); 515 int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 516 unsigned int flags); 517 int security_task_setrlimit(struct task_struct *p, unsigned int resource, 518 struct rlimit *new_rlim); 519 int security_task_setscheduler(struct task_struct *p); 520 int security_task_getscheduler(struct task_struct *p); 521 int security_task_movememory(struct task_struct *p); 522 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, 523 int sig, const struct cred *cred); 524 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 525 unsigned long arg4, unsigned long arg5); 526 void security_task_to_inode(struct task_struct *p, struct inode *inode); 527 int security_create_user_ns(const struct cred *cred); 528 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 529 void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, struct lsm_prop *prop); 530 int security_msg_msg_alloc(struct msg_msg *msg); 531 void security_msg_msg_free(struct msg_msg *msg); 532 int security_msg_queue_alloc(struct kern_ipc_perm *msq); 533 void security_msg_queue_free(struct kern_ipc_perm *msq); 534 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg); 535 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd); 536 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 537 struct msg_msg *msg, int msqflg); 538 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, 539 struct task_struct *target, long type, int mode); 540 int security_shm_alloc(struct kern_ipc_perm *shp); 541 void security_shm_free(struct kern_ipc_perm *shp); 542 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg); 543 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd); 544 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); 545 int security_sem_alloc(struct kern_ipc_perm *sma); 546 void security_sem_free(struct kern_ipc_perm *sma); 547 int security_sem_associate(struct kern_ipc_perm *sma, int semflg); 548 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd); 549 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, 550 unsigned nsops, int alter); 551 void security_d_instantiate(struct dentry *dentry, struct inode *inode); 552 int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 553 u32 __user *size, u32 flags); 554 int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 555 u32 size, u32 flags); 556 int security_getprocattr(struct task_struct *p, int lsmid, const char *name, 557 char **value); 558 int security_setprocattr(int lsmid, const char *name, void *value, size_t size); 559 int security_netlink_send(struct sock *sk, struct sk_buff *skb); 560 int security_ismaclabel(const char *name); 561 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 562 int security_lsmprop_to_secctx(struct lsm_prop *prop, char **secdata, u32 *seclen); 563 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 564 void security_release_secctx(char *secdata, u32 seclen); 565 void security_inode_invalidate_secctx(struct inode *inode); 566 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 567 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 568 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 569 int security_locked_down(enum lockdown_reason what); 570 int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len, 571 void *val, size_t val_len, u64 id, u64 flags); 572 int security_bdev_alloc(struct block_device *bdev); 573 void security_bdev_free(struct block_device *bdev); 574 int security_bdev_setintegrity(struct block_device *bdev, 575 enum lsm_integrity_type type, const void *value, 576 size_t size); 577 #else /* CONFIG_SECURITY */ 578 579 /** 580 * lsmprop_is_set - report if there is a value in the lsm_prop 581 * @prop: Pointer to the exported LSM data 582 * 583 * Returns true if there is a value set, false otherwise 584 */ 585 static inline bool lsmprop_is_set(struct lsm_prop *prop) 586 { 587 return false; 588 } 589 590 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data) 591 { 592 return 0; 593 } 594 595 static inline int register_blocking_lsm_notifier(struct notifier_block *nb) 596 { 597 return 0; 598 } 599 600 static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb) 601 { 602 return 0; 603 } 604 605 static inline u64 lsm_name_to_attr(const char *name) 606 { 607 return LSM_ATTR_UNDEF; 608 } 609 610 static inline void security_free_mnt_opts(void **mnt_opts) 611 { 612 } 613 614 /* 615 * This is the default capabilities functionality. Most of these functions 616 * are just stubbed out, but a few must call the proper capable code. 617 */ 618 619 static inline int security_init(void) 620 { 621 return 0; 622 } 623 624 static inline int early_security_init(void) 625 { 626 return 0; 627 } 628 629 static inline int security_binder_set_context_mgr(const struct cred *mgr) 630 { 631 return 0; 632 } 633 634 static inline int security_binder_transaction(const struct cred *from, 635 const struct cred *to) 636 { 637 return 0; 638 } 639 640 static inline int security_binder_transfer_binder(const struct cred *from, 641 const struct cred *to) 642 { 643 return 0; 644 } 645 646 static inline int security_binder_transfer_file(const struct cred *from, 647 const struct cred *to, 648 const struct file *file) 649 { 650 return 0; 651 } 652 653 static inline int security_ptrace_access_check(struct task_struct *child, 654 unsigned int mode) 655 { 656 return cap_ptrace_access_check(child, mode); 657 } 658 659 static inline int security_ptrace_traceme(struct task_struct *parent) 660 { 661 return cap_ptrace_traceme(parent); 662 } 663 664 static inline int security_capget(const struct task_struct *target, 665 kernel_cap_t *effective, 666 kernel_cap_t *inheritable, 667 kernel_cap_t *permitted) 668 { 669 return cap_capget(target, effective, inheritable, permitted); 670 } 671 672 static inline int security_capset(struct cred *new, 673 const struct cred *old, 674 const kernel_cap_t *effective, 675 const kernel_cap_t *inheritable, 676 const kernel_cap_t *permitted) 677 { 678 return cap_capset(new, old, effective, inheritable, permitted); 679 } 680 681 static inline int security_capable(const struct cred *cred, 682 struct user_namespace *ns, 683 int cap, 684 unsigned int opts) 685 { 686 return cap_capable(cred, ns, cap, opts); 687 } 688 689 static inline int security_quotactl(int cmds, int type, int id, 690 const struct super_block *sb) 691 { 692 return 0; 693 } 694 695 static inline int security_quota_on(struct dentry *dentry) 696 { 697 return 0; 698 } 699 700 static inline int security_syslog(int type) 701 { 702 return 0; 703 } 704 705 static inline int security_settime64(const struct timespec64 *ts, 706 const struct timezone *tz) 707 { 708 return cap_settime(ts, tz); 709 } 710 711 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 712 { 713 return __vm_enough_memory(mm, pages, !cap_vm_enough_memory(mm, pages)); 714 } 715 716 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm) 717 { 718 return 0; 719 } 720 721 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm, 722 const struct file *file) 723 { 724 return cap_bprm_creds_from_file(bprm, file); 725 } 726 727 static inline int security_bprm_check(struct linux_binprm *bprm) 728 { 729 return 0; 730 } 731 732 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm) 733 { 734 } 735 736 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm) 737 { 738 } 739 740 static inline int security_fs_context_submount(struct fs_context *fc, 741 struct super_block *reference) 742 { 743 return 0; 744 } 745 static inline int security_fs_context_dup(struct fs_context *fc, 746 struct fs_context *src_fc) 747 { 748 return 0; 749 } 750 static inline int security_fs_context_parse_param(struct fs_context *fc, 751 struct fs_parameter *param) 752 { 753 return -ENOPARAM; 754 } 755 756 static inline int security_sb_alloc(struct super_block *sb) 757 { 758 return 0; 759 } 760 761 static inline void security_sb_delete(struct super_block *sb) 762 { } 763 764 static inline void security_sb_free(struct super_block *sb) 765 { } 766 767 static inline int security_sb_eat_lsm_opts(char *options, 768 void **mnt_opts) 769 { 770 return 0; 771 } 772 773 static inline int security_sb_remount(struct super_block *sb, 774 void *mnt_opts) 775 { 776 return 0; 777 } 778 779 static inline int security_sb_mnt_opts_compat(struct super_block *sb, 780 void *mnt_opts) 781 { 782 return 0; 783 } 784 785 786 static inline int security_sb_kern_mount(struct super_block *sb) 787 { 788 return 0; 789 } 790 791 static inline int security_sb_show_options(struct seq_file *m, 792 struct super_block *sb) 793 { 794 return 0; 795 } 796 797 static inline int security_sb_statfs(struct dentry *dentry) 798 { 799 return 0; 800 } 801 802 static inline int security_sb_mount(const char *dev_name, const struct path *path, 803 const char *type, unsigned long flags, 804 void *data) 805 { 806 return 0; 807 } 808 809 static inline int security_sb_umount(struct vfsmount *mnt, int flags) 810 { 811 return 0; 812 } 813 814 static inline int security_sb_pivotroot(const struct path *old_path, 815 const struct path *new_path) 816 { 817 return 0; 818 } 819 820 static inline int security_sb_set_mnt_opts(struct super_block *sb, 821 void *mnt_opts, 822 unsigned long kern_flags, 823 unsigned long *set_kern_flags) 824 { 825 return 0; 826 } 827 828 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, 829 struct super_block *newsb, 830 unsigned long kern_flags, 831 unsigned long *set_kern_flags) 832 { 833 return 0; 834 } 835 836 static inline int security_move_mount(const struct path *from_path, 837 const struct path *to_path) 838 { 839 return 0; 840 } 841 842 static inline int security_path_notify(const struct path *path, u64 mask, 843 unsigned int obj_type) 844 { 845 return 0; 846 } 847 848 static inline int security_inode_alloc(struct inode *inode) 849 { 850 return 0; 851 } 852 853 static inline void security_inode_free(struct inode *inode) 854 { } 855 856 static inline int security_dentry_init_security(struct dentry *dentry, 857 int mode, 858 const struct qstr *name, 859 const char **xattr_name, 860 void **ctx, 861 u32 *ctxlen) 862 { 863 return -EOPNOTSUPP; 864 } 865 866 static inline int security_dentry_create_files_as(struct dentry *dentry, 867 int mode, struct qstr *name, 868 const struct cred *old, 869 struct cred *new) 870 { 871 return 0; 872 } 873 874 875 static inline int security_inode_init_security(struct inode *inode, 876 struct inode *dir, 877 const struct qstr *qstr, 878 const initxattrs xattrs, 879 void *fs_data) 880 { 881 return 0; 882 } 883 884 static inline int security_inode_init_security_anon(struct inode *inode, 885 const struct qstr *name, 886 const struct inode *context_inode) 887 { 888 return 0; 889 } 890 891 static inline int security_inode_create(struct inode *dir, 892 struct dentry *dentry, 893 umode_t mode) 894 { 895 return 0; 896 } 897 898 static inline void 899 security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode) 900 { } 901 902 static inline int security_inode_link(struct dentry *old_dentry, 903 struct inode *dir, 904 struct dentry *new_dentry) 905 { 906 return 0; 907 } 908 909 static inline int security_inode_unlink(struct inode *dir, 910 struct dentry *dentry) 911 { 912 return 0; 913 } 914 915 static inline int security_inode_symlink(struct inode *dir, 916 struct dentry *dentry, 917 const char *old_name) 918 { 919 return 0; 920 } 921 922 static inline int security_inode_mkdir(struct inode *dir, 923 struct dentry *dentry, 924 int mode) 925 { 926 return 0; 927 } 928 929 static inline int security_inode_rmdir(struct inode *dir, 930 struct dentry *dentry) 931 { 932 return 0; 933 } 934 935 static inline int security_inode_mknod(struct inode *dir, 936 struct dentry *dentry, 937 int mode, dev_t dev) 938 { 939 return 0; 940 } 941 942 static inline int security_inode_rename(struct inode *old_dir, 943 struct dentry *old_dentry, 944 struct inode *new_dir, 945 struct dentry *new_dentry, 946 unsigned int flags) 947 { 948 return 0; 949 } 950 951 static inline int security_inode_readlink(struct dentry *dentry) 952 { 953 return 0; 954 } 955 956 static inline int security_inode_follow_link(struct dentry *dentry, 957 struct inode *inode, 958 bool rcu) 959 { 960 return 0; 961 } 962 963 static inline int security_inode_permission(struct inode *inode, int mask) 964 { 965 return 0; 966 } 967 968 static inline int security_inode_setattr(struct mnt_idmap *idmap, 969 struct dentry *dentry, 970 struct iattr *attr) 971 { 972 return 0; 973 } 974 975 static inline void 976 security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 977 int ia_valid) 978 { } 979 980 static inline int security_inode_getattr(const struct path *path) 981 { 982 return 0; 983 } 984 985 static inline int security_inode_setxattr(struct mnt_idmap *idmap, 986 struct dentry *dentry, const char *name, const void *value, 987 size_t size, int flags) 988 { 989 return cap_inode_setxattr(dentry, name, value, size, flags); 990 } 991 992 static inline int security_inode_set_acl(struct mnt_idmap *idmap, 993 struct dentry *dentry, 994 const char *acl_name, 995 struct posix_acl *kacl) 996 { 997 return 0; 998 } 999 1000 static inline void security_inode_post_set_acl(struct dentry *dentry, 1001 const char *acl_name, 1002 struct posix_acl *kacl) 1003 { } 1004 1005 static inline int security_inode_get_acl(struct mnt_idmap *idmap, 1006 struct dentry *dentry, 1007 const char *acl_name) 1008 { 1009 return 0; 1010 } 1011 1012 static inline int security_inode_remove_acl(struct mnt_idmap *idmap, 1013 struct dentry *dentry, 1014 const char *acl_name) 1015 { 1016 return 0; 1017 } 1018 1019 static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap, 1020 struct dentry *dentry, 1021 const char *acl_name) 1022 { } 1023 1024 static inline void security_inode_post_setxattr(struct dentry *dentry, 1025 const char *name, const void *value, size_t size, int flags) 1026 { } 1027 1028 static inline int security_inode_getxattr(struct dentry *dentry, 1029 const char *name) 1030 { 1031 return 0; 1032 } 1033 1034 static inline int security_inode_listxattr(struct dentry *dentry) 1035 { 1036 return 0; 1037 } 1038 1039 static inline int security_inode_removexattr(struct mnt_idmap *idmap, 1040 struct dentry *dentry, 1041 const char *name) 1042 { 1043 return cap_inode_removexattr(idmap, dentry, name); 1044 } 1045 1046 static inline void security_inode_post_removexattr(struct dentry *dentry, 1047 const char *name) 1048 { } 1049 1050 static inline int security_inode_need_killpriv(struct dentry *dentry) 1051 { 1052 return cap_inode_need_killpriv(dentry); 1053 } 1054 1055 static inline int security_inode_killpriv(struct mnt_idmap *idmap, 1056 struct dentry *dentry) 1057 { 1058 return cap_inode_killpriv(idmap, dentry); 1059 } 1060 1061 static inline int security_inode_getsecurity(struct mnt_idmap *idmap, 1062 struct inode *inode, 1063 const char *name, void **buffer, 1064 bool alloc) 1065 { 1066 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc); 1067 } 1068 1069 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 1070 { 1071 return -EOPNOTSUPP; 1072 } 1073 1074 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 1075 { 1076 return 0; 1077 } 1078 1079 static inline void security_inode_getlsmprop(struct inode *inode, 1080 struct lsm_prop *prop) 1081 { 1082 lsmprop_init(prop); 1083 } 1084 1085 static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 1086 { 1087 return 0; 1088 } 1089 1090 static inline int security_inode_setintegrity(const struct inode *inode, 1091 enum lsm_integrity_type type, 1092 const void *value, size_t size) 1093 { 1094 return 0; 1095 } 1096 1097 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir, 1098 struct kernfs_node *kn) 1099 { 1100 return 0; 1101 } 1102 1103 static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name) 1104 { 1105 return -EOPNOTSUPP; 1106 } 1107 1108 static inline int security_file_permission(struct file *file, int mask) 1109 { 1110 return 0; 1111 } 1112 1113 static inline int security_file_alloc(struct file *file) 1114 { 1115 return 0; 1116 } 1117 1118 static inline void security_file_release(struct file *file) 1119 { } 1120 1121 static inline void security_file_free(struct file *file) 1122 { } 1123 1124 static inline int security_file_ioctl(struct file *file, unsigned int cmd, 1125 unsigned long arg) 1126 { 1127 return 0; 1128 } 1129 1130 static inline int security_file_ioctl_compat(struct file *file, 1131 unsigned int cmd, 1132 unsigned long arg) 1133 { 1134 return 0; 1135 } 1136 1137 static inline int security_mmap_file(struct file *file, unsigned long prot, 1138 unsigned long flags) 1139 { 1140 return 0; 1141 } 1142 1143 static inline int security_mmap_addr(unsigned long addr) 1144 { 1145 return cap_mmap_addr(addr); 1146 } 1147 1148 static inline int security_file_mprotect(struct vm_area_struct *vma, 1149 unsigned long reqprot, 1150 unsigned long prot) 1151 { 1152 return 0; 1153 } 1154 1155 static inline int security_file_lock(struct file *file, unsigned int cmd) 1156 { 1157 return 0; 1158 } 1159 1160 static inline int security_file_fcntl(struct file *file, unsigned int cmd, 1161 unsigned long arg) 1162 { 1163 return 0; 1164 } 1165 1166 static inline void security_file_set_fowner(struct file *file) 1167 { 1168 return; 1169 } 1170 1171 static inline int security_file_send_sigiotask(struct task_struct *tsk, 1172 struct fown_struct *fown, 1173 int sig) 1174 { 1175 return 0; 1176 } 1177 1178 static inline int security_file_receive(struct file *file) 1179 { 1180 return 0; 1181 } 1182 1183 static inline int security_file_open(struct file *file) 1184 { 1185 return 0; 1186 } 1187 1188 static inline int security_file_post_open(struct file *file, int mask) 1189 { 1190 return 0; 1191 } 1192 1193 static inline int security_file_truncate(struct file *file) 1194 { 1195 return 0; 1196 } 1197 1198 static inline int security_task_alloc(struct task_struct *task, 1199 unsigned long clone_flags) 1200 { 1201 return 0; 1202 } 1203 1204 static inline void security_task_free(struct task_struct *task) 1205 { } 1206 1207 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 1208 { 1209 return 0; 1210 } 1211 1212 static inline void security_cred_free(struct cred *cred) 1213 { } 1214 1215 static inline int security_prepare_creds(struct cred *new, 1216 const struct cred *old, 1217 gfp_t gfp) 1218 { 1219 return 0; 1220 } 1221 1222 static inline void security_transfer_creds(struct cred *new, 1223 const struct cred *old) 1224 { 1225 } 1226 1227 static inline void security_cred_getsecid(const struct cred *c, u32 *secid) 1228 { 1229 *secid = 0; 1230 } 1231 1232 static inline int security_kernel_act_as(struct cred *cred, u32 secid) 1233 { 1234 return 0; 1235 } 1236 1237 static inline int security_kernel_create_files_as(struct cred *cred, 1238 struct inode *inode) 1239 { 1240 return 0; 1241 } 1242 1243 static inline int security_kernel_module_request(char *kmod_name) 1244 { 1245 return 0; 1246 } 1247 1248 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents) 1249 { 1250 return 0; 1251 } 1252 1253 static inline int security_kernel_post_load_data(char *buf, loff_t size, 1254 enum kernel_load_data_id id, 1255 char *description) 1256 { 1257 return 0; 1258 } 1259 1260 static inline int security_kernel_read_file(struct file *file, 1261 enum kernel_read_file_id id, 1262 bool contents) 1263 { 1264 return 0; 1265 } 1266 1267 static inline int security_kernel_post_read_file(struct file *file, 1268 char *buf, loff_t size, 1269 enum kernel_read_file_id id) 1270 { 1271 return 0; 1272 } 1273 1274 static inline int security_task_fix_setuid(struct cred *new, 1275 const struct cred *old, 1276 int flags) 1277 { 1278 return cap_task_fix_setuid(new, old, flags); 1279 } 1280 1281 static inline int security_task_fix_setgid(struct cred *new, 1282 const struct cred *old, 1283 int flags) 1284 { 1285 return 0; 1286 } 1287 1288 static inline int security_task_fix_setgroups(struct cred *new, 1289 const struct cred *old) 1290 { 1291 return 0; 1292 } 1293 1294 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 1295 { 1296 return 0; 1297 } 1298 1299 static inline int security_task_getpgid(struct task_struct *p) 1300 { 1301 return 0; 1302 } 1303 1304 static inline int security_task_getsid(struct task_struct *p) 1305 { 1306 return 0; 1307 } 1308 1309 static inline void security_current_getlsmprop_subj(struct lsm_prop *prop) 1310 { 1311 lsmprop_init(prop); 1312 } 1313 1314 static inline void security_task_getlsmprop_obj(struct task_struct *p, 1315 struct lsm_prop *prop) 1316 { 1317 lsmprop_init(prop); 1318 } 1319 1320 static inline int security_task_setnice(struct task_struct *p, int nice) 1321 { 1322 return cap_task_setnice(p, nice); 1323 } 1324 1325 static inline int security_task_setioprio(struct task_struct *p, int ioprio) 1326 { 1327 return cap_task_setioprio(p, ioprio); 1328 } 1329 1330 static inline int security_task_getioprio(struct task_struct *p) 1331 { 1332 return 0; 1333 } 1334 1335 static inline int security_task_prlimit(const struct cred *cred, 1336 const struct cred *tcred, 1337 unsigned int flags) 1338 { 1339 return 0; 1340 } 1341 1342 static inline int security_task_setrlimit(struct task_struct *p, 1343 unsigned int resource, 1344 struct rlimit *new_rlim) 1345 { 1346 return 0; 1347 } 1348 1349 static inline int security_task_setscheduler(struct task_struct *p) 1350 { 1351 return cap_task_setscheduler(p); 1352 } 1353 1354 static inline int security_task_getscheduler(struct task_struct *p) 1355 { 1356 return 0; 1357 } 1358 1359 static inline int security_task_movememory(struct task_struct *p) 1360 { 1361 return 0; 1362 } 1363 1364 static inline int security_task_kill(struct task_struct *p, 1365 struct kernel_siginfo *info, int sig, 1366 const struct cred *cred) 1367 { 1368 return 0; 1369 } 1370 1371 static inline int security_task_prctl(int option, unsigned long arg2, 1372 unsigned long arg3, 1373 unsigned long arg4, 1374 unsigned long arg5) 1375 { 1376 return cap_task_prctl(option, arg2, arg3, arg4, arg5); 1377 } 1378 1379 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1380 { } 1381 1382 static inline int security_create_user_ns(const struct cred *cred) 1383 { 1384 return 0; 1385 } 1386 1387 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1388 short flag) 1389 { 1390 return 0; 1391 } 1392 1393 static inline void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, 1394 struct lsm_prop *prop) 1395 { 1396 lsmprop_init(prop); 1397 } 1398 1399 static inline int security_msg_msg_alloc(struct msg_msg *msg) 1400 { 1401 return 0; 1402 } 1403 1404 static inline void security_msg_msg_free(struct msg_msg *msg) 1405 { } 1406 1407 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) 1408 { 1409 return 0; 1410 } 1411 1412 static inline void security_msg_queue_free(struct kern_ipc_perm *msq) 1413 { } 1414 1415 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, 1416 int msqflg) 1417 { 1418 return 0; 1419 } 1420 1421 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) 1422 { 1423 return 0; 1424 } 1425 1426 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 1427 struct msg_msg *msg, int msqflg) 1428 { 1429 return 0; 1430 } 1431 1432 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, 1433 struct msg_msg *msg, 1434 struct task_struct *target, 1435 long type, int mode) 1436 { 1437 return 0; 1438 } 1439 1440 static inline int security_shm_alloc(struct kern_ipc_perm *shp) 1441 { 1442 return 0; 1443 } 1444 1445 static inline void security_shm_free(struct kern_ipc_perm *shp) 1446 { } 1447 1448 static inline int security_shm_associate(struct kern_ipc_perm *shp, 1449 int shmflg) 1450 { 1451 return 0; 1452 } 1453 1454 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) 1455 { 1456 return 0; 1457 } 1458 1459 static inline int security_shm_shmat(struct kern_ipc_perm *shp, 1460 char __user *shmaddr, int shmflg) 1461 { 1462 return 0; 1463 } 1464 1465 static inline int security_sem_alloc(struct kern_ipc_perm *sma) 1466 { 1467 return 0; 1468 } 1469 1470 static inline void security_sem_free(struct kern_ipc_perm *sma) 1471 { } 1472 1473 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) 1474 { 1475 return 0; 1476 } 1477 1478 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) 1479 { 1480 return 0; 1481 } 1482 1483 static inline int security_sem_semop(struct kern_ipc_perm *sma, 1484 struct sembuf *sops, unsigned nsops, 1485 int alter) 1486 { 1487 return 0; 1488 } 1489 1490 static inline void security_d_instantiate(struct dentry *dentry, 1491 struct inode *inode) 1492 { } 1493 1494 static inline int security_getselfattr(unsigned int attr, 1495 struct lsm_ctx __user *ctx, 1496 size_t __user *size, u32 flags) 1497 { 1498 return -EOPNOTSUPP; 1499 } 1500 1501 static inline int security_setselfattr(unsigned int attr, 1502 struct lsm_ctx __user *ctx, 1503 size_t size, u32 flags) 1504 { 1505 return -EOPNOTSUPP; 1506 } 1507 1508 static inline int security_getprocattr(struct task_struct *p, int lsmid, 1509 const char *name, char **value) 1510 { 1511 return -EINVAL; 1512 } 1513 1514 static inline int security_setprocattr(int lsmid, char *name, void *value, 1515 size_t size) 1516 { 1517 return -EINVAL; 1518 } 1519 1520 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1521 { 1522 return 0; 1523 } 1524 1525 static inline int security_ismaclabel(const char *name) 1526 { 1527 return 0; 1528 } 1529 1530 static inline int security_secid_to_secctx(u32 secid, char **secdata, 1531 u32 *seclen) 1532 { 1533 return -EOPNOTSUPP; 1534 } 1535 1536 static inline int security_lsmprop_to_secctx(struct lsm_prop *prop, 1537 char **secdata, u32 *seclen) 1538 { 1539 return -EOPNOTSUPP; 1540 } 1541 1542 static inline int security_secctx_to_secid(const char *secdata, 1543 u32 seclen, 1544 u32 *secid) 1545 { 1546 return -EOPNOTSUPP; 1547 } 1548 1549 static inline void security_release_secctx(char *secdata, u32 seclen) 1550 { 1551 } 1552 1553 static inline void security_inode_invalidate_secctx(struct inode *inode) 1554 { 1555 } 1556 1557 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1558 { 1559 return -EOPNOTSUPP; 1560 } 1561 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1562 { 1563 return -EOPNOTSUPP; 1564 } 1565 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1566 { 1567 return -EOPNOTSUPP; 1568 } 1569 static inline int security_locked_down(enum lockdown_reason what) 1570 { 1571 return 0; 1572 } 1573 static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, 1574 u32 *uctx_len, void *val, size_t val_len, 1575 u64 id, u64 flags) 1576 { 1577 return -EOPNOTSUPP; 1578 } 1579 1580 static inline int security_bdev_alloc(struct block_device *bdev) 1581 { 1582 return 0; 1583 } 1584 1585 static inline void security_bdev_free(struct block_device *bdev) 1586 { 1587 } 1588 1589 static inline int security_bdev_setintegrity(struct block_device *bdev, 1590 enum lsm_integrity_type type, 1591 const void *value, size_t size) 1592 { 1593 return 0; 1594 } 1595 1596 #endif /* CONFIG_SECURITY */ 1597 1598 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE) 1599 int security_post_notification(const struct cred *w_cred, 1600 const struct cred *cred, 1601 struct watch_notification *n); 1602 #else 1603 static inline int security_post_notification(const struct cred *w_cred, 1604 const struct cred *cred, 1605 struct watch_notification *n) 1606 { 1607 return 0; 1608 } 1609 #endif 1610 1611 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS) 1612 int security_watch_key(struct key *key); 1613 #else 1614 static inline int security_watch_key(struct key *key) 1615 { 1616 return 0; 1617 } 1618 #endif 1619 1620 #ifdef CONFIG_SECURITY_NETWORK 1621 1622 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1623 int security_unix_may_send(struct socket *sock, struct socket *other); 1624 int security_socket_create(int family, int type, int protocol, int kern); 1625 int security_socket_post_create(struct socket *sock, int family, 1626 int type, int protocol, int kern); 1627 int security_socket_socketpair(struct socket *socka, struct socket *sockb); 1628 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1629 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1630 int security_socket_listen(struct socket *sock, int backlog); 1631 int security_socket_accept(struct socket *sock, struct socket *newsock); 1632 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1633 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1634 int size, int flags); 1635 int security_socket_getsockname(struct socket *sock); 1636 int security_socket_getpeername(struct socket *sock); 1637 int security_socket_getsockopt(struct socket *sock, int level, int optname); 1638 int security_socket_setsockopt(struct socket *sock, int level, int optname); 1639 int security_socket_shutdown(struct socket *sock, int how); 1640 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1641 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, 1642 sockptr_t optlen, unsigned int len); 1643 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1644 int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1645 void security_sk_free(struct sock *sk); 1646 void security_sk_clone(const struct sock *sk, struct sock *newsk); 1647 void security_sk_classify_flow(const struct sock *sk, 1648 struct flowi_common *flic); 1649 void security_req_classify_flow(const struct request_sock *req, 1650 struct flowi_common *flic); 1651 void security_sock_graft(struct sock*sk, struct socket *parent); 1652 int security_inet_conn_request(const struct sock *sk, 1653 struct sk_buff *skb, struct request_sock *req); 1654 void security_inet_csk_clone(struct sock *newsk, 1655 const struct request_sock *req); 1656 void security_inet_conn_established(struct sock *sk, 1657 struct sk_buff *skb); 1658 int security_secmark_relabel_packet(u32 secid); 1659 void security_secmark_refcount_inc(void); 1660 void security_secmark_refcount_dec(void); 1661 int security_tun_dev_alloc_security(void **security); 1662 void security_tun_dev_free_security(void *security); 1663 int security_tun_dev_create(void); 1664 int security_tun_dev_attach_queue(void *security); 1665 int security_tun_dev_attach(struct sock *sk, void *security); 1666 int security_tun_dev_open(void *security); 1667 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb); 1668 int security_sctp_bind_connect(struct sock *sk, int optname, 1669 struct sockaddr *address, int addrlen); 1670 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, 1671 struct sock *newsk); 1672 int security_sctp_assoc_established(struct sctp_association *asoc, 1673 struct sk_buff *skb); 1674 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk); 1675 1676 #else /* CONFIG_SECURITY_NETWORK */ 1677 static inline int security_unix_stream_connect(struct sock *sock, 1678 struct sock *other, 1679 struct sock *newsk) 1680 { 1681 return 0; 1682 } 1683 1684 static inline int security_unix_may_send(struct socket *sock, 1685 struct socket *other) 1686 { 1687 return 0; 1688 } 1689 1690 static inline int security_socket_create(int family, int type, 1691 int protocol, int kern) 1692 { 1693 return 0; 1694 } 1695 1696 static inline int security_socket_post_create(struct socket *sock, 1697 int family, 1698 int type, 1699 int protocol, int kern) 1700 { 1701 return 0; 1702 } 1703 1704 static inline int security_socket_socketpair(struct socket *socka, 1705 struct socket *sockb) 1706 { 1707 return 0; 1708 } 1709 1710 static inline int security_socket_bind(struct socket *sock, 1711 struct sockaddr *address, 1712 int addrlen) 1713 { 1714 return 0; 1715 } 1716 1717 static inline int security_socket_connect(struct socket *sock, 1718 struct sockaddr *address, 1719 int addrlen) 1720 { 1721 return 0; 1722 } 1723 1724 static inline int security_socket_listen(struct socket *sock, int backlog) 1725 { 1726 return 0; 1727 } 1728 1729 static inline int security_socket_accept(struct socket *sock, 1730 struct socket *newsock) 1731 { 1732 return 0; 1733 } 1734 1735 static inline int security_socket_sendmsg(struct socket *sock, 1736 struct msghdr *msg, int size) 1737 { 1738 return 0; 1739 } 1740 1741 static inline int security_socket_recvmsg(struct socket *sock, 1742 struct msghdr *msg, int size, 1743 int flags) 1744 { 1745 return 0; 1746 } 1747 1748 static inline int security_socket_getsockname(struct socket *sock) 1749 { 1750 return 0; 1751 } 1752 1753 static inline int security_socket_getpeername(struct socket *sock) 1754 { 1755 return 0; 1756 } 1757 1758 static inline int security_socket_getsockopt(struct socket *sock, 1759 int level, int optname) 1760 { 1761 return 0; 1762 } 1763 1764 static inline int security_socket_setsockopt(struct socket *sock, 1765 int level, int optname) 1766 { 1767 return 0; 1768 } 1769 1770 static inline int security_socket_shutdown(struct socket *sock, int how) 1771 { 1772 return 0; 1773 } 1774 static inline int security_sock_rcv_skb(struct sock *sk, 1775 struct sk_buff *skb) 1776 { 1777 return 0; 1778 } 1779 1780 static inline int security_socket_getpeersec_stream(struct socket *sock, 1781 sockptr_t optval, 1782 sockptr_t optlen, 1783 unsigned int len) 1784 { 1785 return -ENOPROTOOPT; 1786 } 1787 1788 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1789 { 1790 return -ENOPROTOOPT; 1791 } 1792 1793 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1794 { 1795 return 0; 1796 } 1797 1798 static inline void security_sk_free(struct sock *sk) 1799 { 1800 } 1801 1802 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1803 { 1804 } 1805 1806 static inline void security_sk_classify_flow(const struct sock *sk, 1807 struct flowi_common *flic) 1808 { 1809 } 1810 1811 static inline void security_req_classify_flow(const struct request_sock *req, 1812 struct flowi_common *flic) 1813 { 1814 } 1815 1816 static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1817 { 1818 } 1819 1820 static inline int security_inet_conn_request(const struct sock *sk, 1821 struct sk_buff *skb, struct request_sock *req) 1822 { 1823 return 0; 1824 } 1825 1826 static inline void security_inet_csk_clone(struct sock *newsk, 1827 const struct request_sock *req) 1828 { 1829 } 1830 1831 static inline void security_inet_conn_established(struct sock *sk, 1832 struct sk_buff *skb) 1833 { 1834 } 1835 1836 static inline int security_secmark_relabel_packet(u32 secid) 1837 { 1838 return 0; 1839 } 1840 1841 static inline void security_secmark_refcount_inc(void) 1842 { 1843 } 1844 1845 static inline void security_secmark_refcount_dec(void) 1846 { 1847 } 1848 1849 static inline int security_tun_dev_alloc_security(void **security) 1850 { 1851 return 0; 1852 } 1853 1854 static inline void security_tun_dev_free_security(void *security) 1855 { 1856 } 1857 1858 static inline int security_tun_dev_create(void) 1859 { 1860 return 0; 1861 } 1862 1863 static inline int security_tun_dev_attach_queue(void *security) 1864 { 1865 return 0; 1866 } 1867 1868 static inline int security_tun_dev_attach(struct sock *sk, void *security) 1869 { 1870 return 0; 1871 } 1872 1873 static inline int security_tun_dev_open(void *security) 1874 { 1875 return 0; 1876 } 1877 1878 static inline int security_sctp_assoc_request(struct sctp_association *asoc, 1879 struct sk_buff *skb) 1880 { 1881 return 0; 1882 } 1883 1884 static inline int security_sctp_bind_connect(struct sock *sk, int optname, 1885 struct sockaddr *address, 1886 int addrlen) 1887 { 1888 return 0; 1889 } 1890 1891 static inline void security_sctp_sk_clone(struct sctp_association *asoc, 1892 struct sock *sk, 1893 struct sock *newsk) 1894 { 1895 } 1896 1897 static inline int security_sctp_assoc_established(struct sctp_association *asoc, 1898 struct sk_buff *skb) 1899 { 1900 return 0; 1901 } 1902 1903 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk) 1904 { 1905 return 0; 1906 } 1907 #endif /* CONFIG_SECURITY_NETWORK */ 1908 1909 #ifdef CONFIG_SECURITY_INFINIBAND 1910 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1911 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1912 int security_ib_alloc_security(void **sec); 1913 void security_ib_free_security(void *sec); 1914 #else /* CONFIG_SECURITY_INFINIBAND */ 1915 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1916 { 1917 return 0; 1918 } 1919 1920 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1921 { 1922 return 0; 1923 } 1924 1925 static inline int security_ib_alloc_security(void **sec) 1926 { 1927 return 0; 1928 } 1929 1930 static inline void security_ib_free_security(void *sec) 1931 { 1932 } 1933 #endif /* CONFIG_SECURITY_INFINIBAND */ 1934 1935 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1936 1937 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1938 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1939 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1940 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1941 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1942 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1943 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1944 struct xfrm_sec_ctx *polsec, u32 secid); 1945 int security_xfrm_state_delete(struct xfrm_state *x); 1946 void security_xfrm_state_free(struct xfrm_state *x); 1947 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid); 1948 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1949 struct xfrm_policy *xp, 1950 const struct flowi_common *flic); 1951 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1952 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic); 1953 1954 #else /* CONFIG_SECURITY_NETWORK_XFRM */ 1955 1956 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1957 struct xfrm_user_sec_ctx *sec_ctx, 1958 gfp_t gfp) 1959 { 1960 return 0; 1961 } 1962 1963 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1964 { 1965 return 0; 1966 } 1967 1968 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1969 { 1970 } 1971 1972 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1973 { 1974 return 0; 1975 } 1976 1977 static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1978 struct xfrm_user_sec_ctx *sec_ctx) 1979 { 1980 return 0; 1981 } 1982 1983 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1984 struct xfrm_sec_ctx *polsec, u32 secid) 1985 { 1986 return 0; 1987 } 1988 1989 static inline void security_xfrm_state_free(struct xfrm_state *x) 1990 { 1991 } 1992 1993 static inline int security_xfrm_state_delete(struct xfrm_state *x) 1994 { 1995 return 0; 1996 } 1997 1998 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid) 1999 { 2000 return 0; 2001 } 2002 2003 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 2004 struct xfrm_policy *xp, 2005 const struct flowi_common *flic) 2006 { 2007 return 1; 2008 } 2009 2010 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 2011 { 2012 return 0; 2013 } 2014 2015 static inline void security_skb_classify_flow(struct sk_buff *skb, 2016 struct flowi_common *flic) 2017 { 2018 } 2019 2020 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 2021 2022 #ifdef CONFIG_SECURITY_PATH 2023 int security_path_unlink(const struct path *dir, struct dentry *dentry); 2024 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 2025 int security_path_rmdir(const struct path *dir, struct dentry *dentry); 2026 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 2027 unsigned int dev); 2028 void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry); 2029 int security_path_truncate(const struct path *path); 2030 int security_path_symlink(const struct path *dir, struct dentry *dentry, 2031 const char *old_name); 2032 int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 2033 struct dentry *new_dentry); 2034 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, 2035 const struct path *new_dir, struct dentry *new_dentry, 2036 unsigned int flags); 2037 int security_path_chmod(const struct path *path, umode_t mode); 2038 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 2039 int security_path_chroot(const struct path *path); 2040 #else /* CONFIG_SECURITY_PATH */ 2041 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 2042 { 2043 return 0; 2044 } 2045 2046 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 2047 umode_t mode) 2048 { 2049 return 0; 2050 } 2051 2052 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 2053 { 2054 return 0; 2055 } 2056 2057 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, 2058 umode_t mode, unsigned int dev) 2059 { 2060 return 0; 2061 } 2062 2063 static inline void security_path_post_mknod(struct mnt_idmap *idmap, 2064 struct dentry *dentry) 2065 { } 2066 2067 static inline int security_path_truncate(const struct path *path) 2068 { 2069 return 0; 2070 } 2071 2072 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 2073 const char *old_name) 2074 { 2075 return 0; 2076 } 2077 2078 static inline int security_path_link(struct dentry *old_dentry, 2079 const struct path *new_dir, 2080 struct dentry *new_dentry) 2081 { 2082 return 0; 2083 } 2084 2085 static inline int security_path_rename(const struct path *old_dir, 2086 struct dentry *old_dentry, 2087 const struct path *new_dir, 2088 struct dentry *new_dentry, 2089 unsigned int flags) 2090 { 2091 return 0; 2092 } 2093 2094 static inline int security_path_chmod(const struct path *path, umode_t mode) 2095 { 2096 return 0; 2097 } 2098 2099 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 2100 { 2101 return 0; 2102 } 2103 2104 static inline int security_path_chroot(const struct path *path) 2105 { 2106 return 0; 2107 } 2108 #endif /* CONFIG_SECURITY_PATH */ 2109 2110 #ifdef CONFIG_KEYS 2111 #ifdef CONFIG_SECURITY 2112 2113 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 2114 void security_key_free(struct key *key); 2115 int security_key_permission(key_ref_t key_ref, const struct cred *cred, 2116 enum key_need_perm need_perm); 2117 int security_key_getsecurity(struct key *key, char **_buffer); 2118 void security_key_post_create_or_update(struct key *keyring, struct key *key, 2119 const void *payload, size_t payload_len, 2120 unsigned long flags, bool create); 2121 2122 #else 2123 2124 static inline int security_key_alloc(struct key *key, 2125 const struct cred *cred, 2126 unsigned long flags) 2127 { 2128 return 0; 2129 } 2130 2131 static inline void security_key_free(struct key *key) 2132 { 2133 } 2134 2135 static inline int security_key_permission(key_ref_t key_ref, 2136 const struct cred *cred, 2137 enum key_need_perm need_perm) 2138 { 2139 return 0; 2140 } 2141 2142 static inline int security_key_getsecurity(struct key *key, char **_buffer) 2143 { 2144 *_buffer = NULL; 2145 return 0; 2146 } 2147 2148 static inline void security_key_post_create_or_update(struct key *keyring, 2149 struct key *key, 2150 const void *payload, 2151 size_t payload_len, 2152 unsigned long flags, 2153 bool create) 2154 { } 2155 2156 #endif 2157 #endif /* CONFIG_KEYS */ 2158 2159 #ifdef CONFIG_AUDIT 2160 #ifdef CONFIG_SECURITY 2161 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule, 2162 gfp_t gfp); 2163 int security_audit_rule_known(struct audit_krule *krule); 2164 int security_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op, 2165 void *lsmrule); 2166 void security_audit_rule_free(void *lsmrule); 2167 2168 #else 2169 2170 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 2171 void **lsmrule, gfp_t gfp) 2172 { 2173 return 0; 2174 } 2175 2176 static inline int security_audit_rule_known(struct audit_krule *krule) 2177 { 2178 return 0; 2179 } 2180 2181 static inline int security_audit_rule_match(struct lsm_prop *prop, u32 field, 2182 u32 op, void *lsmrule) 2183 { 2184 return 0; 2185 } 2186 2187 static inline void security_audit_rule_free(void *lsmrule) 2188 { } 2189 2190 #endif /* CONFIG_SECURITY */ 2191 #endif /* CONFIG_AUDIT */ 2192 2193 #ifdef CONFIG_SECURITYFS 2194 2195 extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 2196 struct dentry *parent, void *data, 2197 const struct file_operations *fops); 2198 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 2199 struct dentry *securityfs_create_symlink(const char *name, 2200 struct dentry *parent, 2201 const char *target, 2202 const struct inode_operations *iops); 2203 extern void securityfs_remove(struct dentry *dentry); 2204 extern void securityfs_recursive_remove(struct dentry *dentry); 2205 2206 #else /* CONFIG_SECURITYFS */ 2207 2208 static inline struct dentry *securityfs_create_dir(const char *name, 2209 struct dentry *parent) 2210 { 2211 return ERR_PTR(-ENODEV); 2212 } 2213 2214 static inline struct dentry *securityfs_create_file(const char *name, 2215 umode_t mode, 2216 struct dentry *parent, 2217 void *data, 2218 const struct file_operations *fops) 2219 { 2220 return ERR_PTR(-ENODEV); 2221 } 2222 2223 static inline struct dentry *securityfs_create_symlink(const char *name, 2224 struct dentry *parent, 2225 const char *target, 2226 const struct inode_operations *iops) 2227 { 2228 return ERR_PTR(-ENODEV); 2229 } 2230 2231 static inline void securityfs_remove(struct dentry *dentry) 2232 {} 2233 2234 #endif 2235 2236 #ifdef CONFIG_BPF_SYSCALL 2237 union bpf_attr; 2238 struct bpf_map; 2239 struct bpf_prog; 2240 struct bpf_token; 2241 #ifdef CONFIG_SECURITY 2242 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size); 2243 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode); 2244 extern int security_bpf_prog(struct bpf_prog *prog); 2245 extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2246 struct bpf_token *token); 2247 extern void security_bpf_map_free(struct bpf_map *map); 2248 extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2249 struct bpf_token *token); 2250 extern void security_bpf_prog_free(struct bpf_prog *prog); 2251 extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2252 const struct path *path); 2253 extern void security_bpf_token_free(struct bpf_token *token); 2254 extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd); 2255 extern int security_bpf_token_capable(const struct bpf_token *token, int cap); 2256 #else 2257 static inline int security_bpf(int cmd, union bpf_attr *attr, 2258 unsigned int size) 2259 { 2260 return 0; 2261 } 2262 2263 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode) 2264 { 2265 return 0; 2266 } 2267 2268 static inline int security_bpf_prog(struct bpf_prog *prog) 2269 { 2270 return 0; 2271 } 2272 2273 static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2274 struct bpf_token *token) 2275 { 2276 return 0; 2277 } 2278 2279 static inline void security_bpf_map_free(struct bpf_map *map) 2280 { } 2281 2282 static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2283 struct bpf_token *token) 2284 { 2285 return 0; 2286 } 2287 2288 static inline void security_bpf_prog_free(struct bpf_prog *prog) 2289 { } 2290 2291 static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2292 const struct path *path) 2293 { 2294 return 0; 2295 } 2296 2297 static inline void security_bpf_token_free(struct bpf_token *token) 2298 { } 2299 2300 static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd) 2301 { 2302 return 0; 2303 } 2304 2305 static inline int security_bpf_token_capable(const struct bpf_token *token, int cap) 2306 { 2307 return 0; 2308 } 2309 #endif /* CONFIG_SECURITY */ 2310 #endif /* CONFIG_BPF_SYSCALL */ 2311 2312 #ifdef CONFIG_PERF_EVENTS 2313 struct perf_event_attr; 2314 struct perf_event; 2315 2316 #ifdef CONFIG_SECURITY 2317 extern int security_perf_event_open(struct perf_event_attr *attr, int type); 2318 extern int security_perf_event_alloc(struct perf_event *event); 2319 extern void security_perf_event_free(struct perf_event *event); 2320 extern int security_perf_event_read(struct perf_event *event); 2321 extern int security_perf_event_write(struct perf_event *event); 2322 #else 2323 static inline int security_perf_event_open(struct perf_event_attr *attr, 2324 int type) 2325 { 2326 return 0; 2327 } 2328 2329 static inline int security_perf_event_alloc(struct perf_event *event) 2330 { 2331 return 0; 2332 } 2333 2334 static inline void security_perf_event_free(struct perf_event *event) 2335 { 2336 } 2337 2338 static inline int security_perf_event_read(struct perf_event *event) 2339 { 2340 return 0; 2341 } 2342 2343 static inline int security_perf_event_write(struct perf_event *event) 2344 { 2345 return 0; 2346 } 2347 #endif /* CONFIG_SECURITY */ 2348 #endif /* CONFIG_PERF_EVENTS */ 2349 2350 #ifdef CONFIG_IO_URING 2351 #ifdef CONFIG_SECURITY 2352 extern int security_uring_override_creds(const struct cred *new); 2353 extern int security_uring_sqpoll(void); 2354 extern int security_uring_cmd(struct io_uring_cmd *ioucmd); 2355 #else 2356 static inline int security_uring_override_creds(const struct cred *new) 2357 { 2358 return 0; 2359 } 2360 static inline int security_uring_sqpoll(void) 2361 { 2362 return 0; 2363 } 2364 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd) 2365 { 2366 return 0; 2367 } 2368 #endif /* CONFIG_SECURITY */ 2369 #endif /* CONFIG_IO_URING */ 2370 2371 #ifdef CONFIG_SECURITY 2372 extern void security_initramfs_populated(void); 2373 #else 2374 static inline void security_initramfs_populated(void) 2375 { 2376 } 2377 #endif /* CONFIG_SECURITY */ 2378 2379 #endif /* ! __LINUX_SECURITY_H */ 2380