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 void security_cred_getlsmprop(const struct cred *c, struct lsm_prop *prop); 492 int security_kernel_act_as(struct cred *new, u32 secid); 493 int security_kernel_create_files_as(struct cred *new, struct inode *inode); 494 int security_kernel_module_request(char *kmod_name); 495 int security_kernel_load_data(enum kernel_load_data_id id, bool contents); 496 int security_kernel_post_load_data(char *buf, loff_t size, 497 enum kernel_load_data_id id, 498 char *description); 499 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id, 500 bool contents); 501 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 502 enum kernel_read_file_id id); 503 int security_task_fix_setuid(struct cred *new, const struct cred *old, 504 int flags); 505 int security_task_fix_setgid(struct cred *new, const struct cred *old, 506 int flags); 507 int security_task_fix_setgroups(struct cred *new, const struct cred *old); 508 int security_task_setpgid(struct task_struct *p, pid_t pgid); 509 int security_task_getpgid(struct task_struct *p); 510 int security_task_getsid(struct task_struct *p); 511 void security_current_getlsmprop_subj(struct lsm_prop *prop); 512 void security_task_getlsmprop_obj(struct task_struct *p, struct lsm_prop *prop); 513 int security_task_setnice(struct task_struct *p, int nice); 514 int security_task_setioprio(struct task_struct *p, int ioprio); 515 int security_task_getioprio(struct task_struct *p); 516 int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 517 unsigned int flags); 518 int security_task_setrlimit(struct task_struct *p, unsigned int resource, 519 struct rlimit *new_rlim); 520 int security_task_setscheduler(struct task_struct *p); 521 int security_task_getscheduler(struct task_struct *p); 522 int security_task_movememory(struct task_struct *p); 523 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, 524 int sig, const struct cred *cred); 525 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 526 unsigned long arg4, unsigned long arg5); 527 void security_task_to_inode(struct task_struct *p, struct inode *inode); 528 int security_create_user_ns(const struct cred *cred); 529 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 530 void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, struct lsm_prop *prop); 531 int security_msg_msg_alloc(struct msg_msg *msg); 532 void security_msg_msg_free(struct msg_msg *msg); 533 int security_msg_queue_alloc(struct kern_ipc_perm *msq); 534 void security_msg_queue_free(struct kern_ipc_perm *msq); 535 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg); 536 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd); 537 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 538 struct msg_msg *msg, int msqflg); 539 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, 540 struct task_struct *target, long type, int mode); 541 int security_shm_alloc(struct kern_ipc_perm *shp); 542 void security_shm_free(struct kern_ipc_perm *shp); 543 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg); 544 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd); 545 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); 546 int security_sem_alloc(struct kern_ipc_perm *sma); 547 void security_sem_free(struct kern_ipc_perm *sma); 548 int security_sem_associate(struct kern_ipc_perm *sma, int semflg); 549 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd); 550 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, 551 unsigned nsops, int alter); 552 void security_d_instantiate(struct dentry *dentry, struct inode *inode); 553 int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 554 u32 __user *size, u32 flags); 555 int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 556 u32 size, u32 flags); 557 int security_getprocattr(struct task_struct *p, int lsmid, const char *name, 558 char **value); 559 int security_setprocattr(int lsmid, const char *name, void *value, size_t size); 560 int security_netlink_send(struct sock *sk, struct sk_buff *skb); 561 int security_ismaclabel(const char *name); 562 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 563 int security_lsmprop_to_secctx(struct lsm_prop *prop, char **secdata, u32 *seclen); 564 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 565 void security_release_secctx(char *secdata, u32 seclen); 566 void security_inode_invalidate_secctx(struct inode *inode); 567 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 568 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 569 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 570 int security_locked_down(enum lockdown_reason what); 571 int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len, 572 void *val, size_t val_len, u64 id, u64 flags); 573 int security_bdev_alloc(struct block_device *bdev); 574 void security_bdev_free(struct block_device *bdev); 575 int security_bdev_setintegrity(struct block_device *bdev, 576 enum lsm_integrity_type type, const void *value, 577 size_t size); 578 #else /* CONFIG_SECURITY */ 579 580 /** 581 * lsmprop_is_set - report if there is a value in the lsm_prop 582 * @prop: Pointer to the exported LSM data 583 * 584 * Returns true if there is a value set, false otherwise 585 */ 586 static inline bool lsmprop_is_set(struct lsm_prop *prop) 587 { 588 return false; 589 } 590 591 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data) 592 { 593 return 0; 594 } 595 596 static inline int register_blocking_lsm_notifier(struct notifier_block *nb) 597 { 598 return 0; 599 } 600 601 static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb) 602 { 603 return 0; 604 } 605 606 static inline u64 lsm_name_to_attr(const char *name) 607 { 608 return LSM_ATTR_UNDEF; 609 } 610 611 static inline void security_free_mnt_opts(void **mnt_opts) 612 { 613 } 614 615 /* 616 * This is the default capabilities functionality. Most of these functions 617 * are just stubbed out, but a few must call the proper capable code. 618 */ 619 620 static inline int security_init(void) 621 { 622 return 0; 623 } 624 625 static inline int early_security_init(void) 626 { 627 return 0; 628 } 629 630 static inline int security_binder_set_context_mgr(const struct cred *mgr) 631 { 632 return 0; 633 } 634 635 static inline int security_binder_transaction(const struct cred *from, 636 const struct cred *to) 637 { 638 return 0; 639 } 640 641 static inline int security_binder_transfer_binder(const struct cred *from, 642 const struct cred *to) 643 { 644 return 0; 645 } 646 647 static inline int security_binder_transfer_file(const struct cred *from, 648 const struct cred *to, 649 const struct file *file) 650 { 651 return 0; 652 } 653 654 static inline int security_ptrace_access_check(struct task_struct *child, 655 unsigned int mode) 656 { 657 return cap_ptrace_access_check(child, mode); 658 } 659 660 static inline int security_ptrace_traceme(struct task_struct *parent) 661 { 662 return cap_ptrace_traceme(parent); 663 } 664 665 static inline int security_capget(const struct task_struct *target, 666 kernel_cap_t *effective, 667 kernel_cap_t *inheritable, 668 kernel_cap_t *permitted) 669 { 670 return cap_capget(target, effective, inheritable, permitted); 671 } 672 673 static inline int security_capset(struct cred *new, 674 const struct cred *old, 675 const kernel_cap_t *effective, 676 const kernel_cap_t *inheritable, 677 const kernel_cap_t *permitted) 678 { 679 return cap_capset(new, old, effective, inheritable, permitted); 680 } 681 682 static inline int security_capable(const struct cred *cred, 683 struct user_namespace *ns, 684 int cap, 685 unsigned int opts) 686 { 687 return cap_capable(cred, ns, cap, opts); 688 } 689 690 static inline int security_quotactl(int cmds, int type, int id, 691 const struct super_block *sb) 692 { 693 return 0; 694 } 695 696 static inline int security_quota_on(struct dentry *dentry) 697 { 698 return 0; 699 } 700 701 static inline int security_syslog(int type) 702 { 703 return 0; 704 } 705 706 static inline int security_settime64(const struct timespec64 *ts, 707 const struct timezone *tz) 708 { 709 return cap_settime(ts, tz); 710 } 711 712 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 713 { 714 return __vm_enough_memory(mm, pages, !cap_vm_enough_memory(mm, pages)); 715 } 716 717 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm) 718 { 719 return 0; 720 } 721 722 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm, 723 const struct file *file) 724 { 725 return cap_bprm_creds_from_file(bprm, file); 726 } 727 728 static inline int security_bprm_check(struct linux_binprm *bprm) 729 { 730 return 0; 731 } 732 733 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm) 734 { 735 } 736 737 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm) 738 { 739 } 740 741 static inline int security_fs_context_submount(struct fs_context *fc, 742 struct super_block *reference) 743 { 744 return 0; 745 } 746 static inline int security_fs_context_dup(struct fs_context *fc, 747 struct fs_context *src_fc) 748 { 749 return 0; 750 } 751 static inline int security_fs_context_parse_param(struct fs_context *fc, 752 struct fs_parameter *param) 753 { 754 return -ENOPARAM; 755 } 756 757 static inline int security_sb_alloc(struct super_block *sb) 758 { 759 return 0; 760 } 761 762 static inline void security_sb_delete(struct super_block *sb) 763 { } 764 765 static inline void security_sb_free(struct super_block *sb) 766 { } 767 768 static inline int security_sb_eat_lsm_opts(char *options, 769 void **mnt_opts) 770 { 771 return 0; 772 } 773 774 static inline int security_sb_remount(struct super_block *sb, 775 void *mnt_opts) 776 { 777 return 0; 778 } 779 780 static inline int security_sb_mnt_opts_compat(struct super_block *sb, 781 void *mnt_opts) 782 { 783 return 0; 784 } 785 786 787 static inline int security_sb_kern_mount(struct super_block *sb) 788 { 789 return 0; 790 } 791 792 static inline int security_sb_show_options(struct seq_file *m, 793 struct super_block *sb) 794 { 795 return 0; 796 } 797 798 static inline int security_sb_statfs(struct dentry *dentry) 799 { 800 return 0; 801 } 802 803 static inline int security_sb_mount(const char *dev_name, const struct path *path, 804 const char *type, unsigned long flags, 805 void *data) 806 { 807 return 0; 808 } 809 810 static inline int security_sb_umount(struct vfsmount *mnt, int flags) 811 { 812 return 0; 813 } 814 815 static inline int security_sb_pivotroot(const struct path *old_path, 816 const struct path *new_path) 817 { 818 return 0; 819 } 820 821 static inline int security_sb_set_mnt_opts(struct super_block *sb, 822 void *mnt_opts, 823 unsigned long kern_flags, 824 unsigned long *set_kern_flags) 825 { 826 return 0; 827 } 828 829 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, 830 struct super_block *newsb, 831 unsigned long kern_flags, 832 unsigned long *set_kern_flags) 833 { 834 return 0; 835 } 836 837 static inline int security_move_mount(const struct path *from_path, 838 const struct path *to_path) 839 { 840 return 0; 841 } 842 843 static inline int security_path_notify(const struct path *path, u64 mask, 844 unsigned int obj_type) 845 { 846 return 0; 847 } 848 849 static inline int security_inode_alloc(struct inode *inode) 850 { 851 return 0; 852 } 853 854 static inline void security_inode_free(struct inode *inode) 855 { } 856 857 static inline int security_dentry_init_security(struct dentry *dentry, 858 int mode, 859 const struct qstr *name, 860 const char **xattr_name, 861 void **ctx, 862 u32 *ctxlen) 863 { 864 return -EOPNOTSUPP; 865 } 866 867 static inline int security_dentry_create_files_as(struct dentry *dentry, 868 int mode, struct qstr *name, 869 const struct cred *old, 870 struct cred *new) 871 { 872 return 0; 873 } 874 875 876 static inline int security_inode_init_security(struct inode *inode, 877 struct inode *dir, 878 const struct qstr *qstr, 879 const initxattrs xattrs, 880 void *fs_data) 881 { 882 return 0; 883 } 884 885 static inline int security_inode_init_security_anon(struct inode *inode, 886 const struct qstr *name, 887 const struct inode *context_inode) 888 { 889 return 0; 890 } 891 892 static inline int security_inode_create(struct inode *dir, 893 struct dentry *dentry, 894 umode_t mode) 895 { 896 return 0; 897 } 898 899 static inline void 900 security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode) 901 { } 902 903 static inline int security_inode_link(struct dentry *old_dentry, 904 struct inode *dir, 905 struct dentry *new_dentry) 906 { 907 return 0; 908 } 909 910 static inline int security_inode_unlink(struct inode *dir, 911 struct dentry *dentry) 912 { 913 return 0; 914 } 915 916 static inline int security_inode_symlink(struct inode *dir, 917 struct dentry *dentry, 918 const char *old_name) 919 { 920 return 0; 921 } 922 923 static inline int security_inode_mkdir(struct inode *dir, 924 struct dentry *dentry, 925 int mode) 926 { 927 return 0; 928 } 929 930 static inline int security_inode_rmdir(struct inode *dir, 931 struct dentry *dentry) 932 { 933 return 0; 934 } 935 936 static inline int security_inode_mknod(struct inode *dir, 937 struct dentry *dentry, 938 int mode, dev_t dev) 939 { 940 return 0; 941 } 942 943 static inline int security_inode_rename(struct inode *old_dir, 944 struct dentry *old_dentry, 945 struct inode *new_dir, 946 struct dentry *new_dentry, 947 unsigned int flags) 948 { 949 return 0; 950 } 951 952 static inline int security_inode_readlink(struct dentry *dentry) 953 { 954 return 0; 955 } 956 957 static inline int security_inode_follow_link(struct dentry *dentry, 958 struct inode *inode, 959 bool rcu) 960 { 961 return 0; 962 } 963 964 static inline int security_inode_permission(struct inode *inode, int mask) 965 { 966 return 0; 967 } 968 969 static inline int security_inode_setattr(struct mnt_idmap *idmap, 970 struct dentry *dentry, 971 struct iattr *attr) 972 { 973 return 0; 974 } 975 976 static inline void 977 security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 978 int ia_valid) 979 { } 980 981 static inline int security_inode_getattr(const struct path *path) 982 { 983 return 0; 984 } 985 986 static inline int security_inode_setxattr(struct mnt_idmap *idmap, 987 struct dentry *dentry, const char *name, const void *value, 988 size_t size, int flags) 989 { 990 return cap_inode_setxattr(dentry, name, value, size, flags); 991 } 992 993 static inline int security_inode_set_acl(struct mnt_idmap *idmap, 994 struct dentry *dentry, 995 const char *acl_name, 996 struct posix_acl *kacl) 997 { 998 return 0; 999 } 1000 1001 static inline void security_inode_post_set_acl(struct dentry *dentry, 1002 const char *acl_name, 1003 struct posix_acl *kacl) 1004 { } 1005 1006 static inline int security_inode_get_acl(struct mnt_idmap *idmap, 1007 struct dentry *dentry, 1008 const char *acl_name) 1009 { 1010 return 0; 1011 } 1012 1013 static inline int security_inode_remove_acl(struct mnt_idmap *idmap, 1014 struct dentry *dentry, 1015 const char *acl_name) 1016 { 1017 return 0; 1018 } 1019 1020 static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap, 1021 struct dentry *dentry, 1022 const char *acl_name) 1023 { } 1024 1025 static inline void security_inode_post_setxattr(struct dentry *dentry, 1026 const char *name, const void *value, size_t size, int flags) 1027 { } 1028 1029 static inline int security_inode_getxattr(struct dentry *dentry, 1030 const char *name) 1031 { 1032 return 0; 1033 } 1034 1035 static inline int security_inode_listxattr(struct dentry *dentry) 1036 { 1037 return 0; 1038 } 1039 1040 static inline int security_inode_removexattr(struct mnt_idmap *idmap, 1041 struct dentry *dentry, 1042 const char *name) 1043 { 1044 return cap_inode_removexattr(idmap, dentry, name); 1045 } 1046 1047 static inline void security_inode_post_removexattr(struct dentry *dentry, 1048 const char *name) 1049 { } 1050 1051 static inline int security_inode_need_killpriv(struct dentry *dentry) 1052 { 1053 return cap_inode_need_killpriv(dentry); 1054 } 1055 1056 static inline int security_inode_killpriv(struct mnt_idmap *idmap, 1057 struct dentry *dentry) 1058 { 1059 return cap_inode_killpriv(idmap, dentry); 1060 } 1061 1062 static inline int security_inode_getsecurity(struct mnt_idmap *idmap, 1063 struct inode *inode, 1064 const char *name, void **buffer, 1065 bool alloc) 1066 { 1067 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc); 1068 } 1069 1070 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 1071 { 1072 return -EOPNOTSUPP; 1073 } 1074 1075 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 1076 { 1077 return 0; 1078 } 1079 1080 static inline void security_inode_getlsmprop(struct inode *inode, 1081 struct lsm_prop *prop) 1082 { 1083 lsmprop_init(prop); 1084 } 1085 1086 static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 1087 { 1088 return 0; 1089 } 1090 1091 static inline int security_inode_setintegrity(const struct inode *inode, 1092 enum lsm_integrity_type type, 1093 const void *value, size_t size) 1094 { 1095 return 0; 1096 } 1097 1098 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir, 1099 struct kernfs_node *kn) 1100 { 1101 return 0; 1102 } 1103 1104 static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name) 1105 { 1106 return -EOPNOTSUPP; 1107 } 1108 1109 static inline int security_file_permission(struct file *file, int mask) 1110 { 1111 return 0; 1112 } 1113 1114 static inline int security_file_alloc(struct file *file) 1115 { 1116 return 0; 1117 } 1118 1119 static inline void security_file_release(struct file *file) 1120 { } 1121 1122 static inline void security_file_free(struct file *file) 1123 { } 1124 1125 static inline int security_file_ioctl(struct file *file, unsigned int cmd, 1126 unsigned long arg) 1127 { 1128 return 0; 1129 } 1130 1131 static inline int security_file_ioctl_compat(struct file *file, 1132 unsigned int cmd, 1133 unsigned long arg) 1134 { 1135 return 0; 1136 } 1137 1138 static inline int security_mmap_file(struct file *file, unsigned long prot, 1139 unsigned long flags) 1140 { 1141 return 0; 1142 } 1143 1144 static inline int security_mmap_addr(unsigned long addr) 1145 { 1146 return cap_mmap_addr(addr); 1147 } 1148 1149 static inline int security_file_mprotect(struct vm_area_struct *vma, 1150 unsigned long reqprot, 1151 unsigned long prot) 1152 { 1153 return 0; 1154 } 1155 1156 static inline int security_file_lock(struct file *file, unsigned int cmd) 1157 { 1158 return 0; 1159 } 1160 1161 static inline int security_file_fcntl(struct file *file, unsigned int cmd, 1162 unsigned long arg) 1163 { 1164 return 0; 1165 } 1166 1167 static inline void security_file_set_fowner(struct file *file) 1168 { 1169 return; 1170 } 1171 1172 static inline int security_file_send_sigiotask(struct task_struct *tsk, 1173 struct fown_struct *fown, 1174 int sig) 1175 { 1176 return 0; 1177 } 1178 1179 static inline int security_file_receive(struct file *file) 1180 { 1181 return 0; 1182 } 1183 1184 static inline int security_file_open(struct file *file) 1185 { 1186 return 0; 1187 } 1188 1189 static inline int security_file_post_open(struct file *file, int mask) 1190 { 1191 return 0; 1192 } 1193 1194 static inline int security_file_truncate(struct file *file) 1195 { 1196 return 0; 1197 } 1198 1199 static inline int security_task_alloc(struct task_struct *task, 1200 unsigned long clone_flags) 1201 { 1202 return 0; 1203 } 1204 1205 static inline void security_task_free(struct task_struct *task) 1206 { } 1207 1208 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 1209 { 1210 return 0; 1211 } 1212 1213 static inline void security_cred_free(struct cred *cred) 1214 { } 1215 1216 static inline int security_prepare_creds(struct cred *new, 1217 const struct cred *old, 1218 gfp_t gfp) 1219 { 1220 return 0; 1221 } 1222 1223 static inline void security_transfer_creds(struct cred *new, 1224 const struct cred *old) 1225 { 1226 } 1227 1228 static inline void security_cred_getsecid(const struct cred *c, u32 *secid) 1229 { 1230 *secid = 0; 1231 } 1232 1233 static inline void security_cred_getlsmprop(const struct cred *c, 1234 struct lsm_prop *prop) 1235 { } 1236 1237 static inline int security_kernel_act_as(struct cred *cred, u32 secid) 1238 { 1239 return 0; 1240 } 1241 1242 static inline int security_kernel_create_files_as(struct cred *cred, 1243 struct inode *inode) 1244 { 1245 return 0; 1246 } 1247 1248 static inline int security_kernel_module_request(char *kmod_name) 1249 { 1250 return 0; 1251 } 1252 1253 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents) 1254 { 1255 return 0; 1256 } 1257 1258 static inline int security_kernel_post_load_data(char *buf, loff_t size, 1259 enum kernel_load_data_id id, 1260 char *description) 1261 { 1262 return 0; 1263 } 1264 1265 static inline int security_kernel_read_file(struct file *file, 1266 enum kernel_read_file_id id, 1267 bool contents) 1268 { 1269 return 0; 1270 } 1271 1272 static inline int security_kernel_post_read_file(struct file *file, 1273 char *buf, loff_t size, 1274 enum kernel_read_file_id id) 1275 { 1276 return 0; 1277 } 1278 1279 static inline int security_task_fix_setuid(struct cred *new, 1280 const struct cred *old, 1281 int flags) 1282 { 1283 return cap_task_fix_setuid(new, old, flags); 1284 } 1285 1286 static inline int security_task_fix_setgid(struct cred *new, 1287 const struct cred *old, 1288 int flags) 1289 { 1290 return 0; 1291 } 1292 1293 static inline int security_task_fix_setgroups(struct cred *new, 1294 const struct cred *old) 1295 { 1296 return 0; 1297 } 1298 1299 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 1300 { 1301 return 0; 1302 } 1303 1304 static inline int security_task_getpgid(struct task_struct *p) 1305 { 1306 return 0; 1307 } 1308 1309 static inline int security_task_getsid(struct task_struct *p) 1310 { 1311 return 0; 1312 } 1313 1314 static inline void security_current_getlsmprop_subj(struct lsm_prop *prop) 1315 { 1316 lsmprop_init(prop); 1317 } 1318 1319 static inline void security_task_getlsmprop_obj(struct task_struct *p, 1320 struct lsm_prop *prop) 1321 { 1322 lsmprop_init(prop); 1323 } 1324 1325 static inline int security_task_setnice(struct task_struct *p, int nice) 1326 { 1327 return cap_task_setnice(p, nice); 1328 } 1329 1330 static inline int security_task_setioprio(struct task_struct *p, int ioprio) 1331 { 1332 return cap_task_setioprio(p, ioprio); 1333 } 1334 1335 static inline int security_task_getioprio(struct task_struct *p) 1336 { 1337 return 0; 1338 } 1339 1340 static inline int security_task_prlimit(const struct cred *cred, 1341 const struct cred *tcred, 1342 unsigned int flags) 1343 { 1344 return 0; 1345 } 1346 1347 static inline int security_task_setrlimit(struct task_struct *p, 1348 unsigned int resource, 1349 struct rlimit *new_rlim) 1350 { 1351 return 0; 1352 } 1353 1354 static inline int security_task_setscheduler(struct task_struct *p) 1355 { 1356 return cap_task_setscheduler(p); 1357 } 1358 1359 static inline int security_task_getscheduler(struct task_struct *p) 1360 { 1361 return 0; 1362 } 1363 1364 static inline int security_task_movememory(struct task_struct *p) 1365 { 1366 return 0; 1367 } 1368 1369 static inline int security_task_kill(struct task_struct *p, 1370 struct kernel_siginfo *info, int sig, 1371 const struct cred *cred) 1372 { 1373 return 0; 1374 } 1375 1376 static inline int security_task_prctl(int option, unsigned long arg2, 1377 unsigned long arg3, 1378 unsigned long arg4, 1379 unsigned long arg5) 1380 { 1381 return cap_task_prctl(option, arg2, arg3, arg4, arg5); 1382 } 1383 1384 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1385 { } 1386 1387 static inline int security_create_user_ns(const struct cred *cred) 1388 { 1389 return 0; 1390 } 1391 1392 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1393 short flag) 1394 { 1395 return 0; 1396 } 1397 1398 static inline void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, 1399 struct lsm_prop *prop) 1400 { 1401 lsmprop_init(prop); 1402 } 1403 1404 static inline int security_msg_msg_alloc(struct msg_msg *msg) 1405 { 1406 return 0; 1407 } 1408 1409 static inline void security_msg_msg_free(struct msg_msg *msg) 1410 { } 1411 1412 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) 1413 { 1414 return 0; 1415 } 1416 1417 static inline void security_msg_queue_free(struct kern_ipc_perm *msq) 1418 { } 1419 1420 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, 1421 int msqflg) 1422 { 1423 return 0; 1424 } 1425 1426 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) 1427 { 1428 return 0; 1429 } 1430 1431 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 1432 struct msg_msg *msg, int msqflg) 1433 { 1434 return 0; 1435 } 1436 1437 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, 1438 struct msg_msg *msg, 1439 struct task_struct *target, 1440 long type, int mode) 1441 { 1442 return 0; 1443 } 1444 1445 static inline int security_shm_alloc(struct kern_ipc_perm *shp) 1446 { 1447 return 0; 1448 } 1449 1450 static inline void security_shm_free(struct kern_ipc_perm *shp) 1451 { } 1452 1453 static inline int security_shm_associate(struct kern_ipc_perm *shp, 1454 int shmflg) 1455 { 1456 return 0; 1457 } 1458 1459 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) 1460 { 1461 return 0; 1462 } 1463 1464 static inline int security_shm_shmat(struct kern_ipc_perm *shp, 1465 char __user *shmaddr, int shmflg) 1466 { 1467 return 0; 1468 } 1469 1470 static inline int security_sem_alloc(struct kern_ipc_perm *sma) 1471 { 1472 return 0; 1473 } 1474 1475 static inline void security_sem_free(struct kern_ipc_perm *sma) 1476 { } 1477 1478 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) 1479 { 1480 return 0; 1481 } 1482 1483 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) 1484 { 1485 return 0; 1486 } 1487 1488 static inline int security_sem_semop(struct kern_ipc_perm *sma, 1489 struct sembuf *sops, unsigned nsops, 1490 int alter) 1491 { 1492 return 0; 1493 } 1494 1495 static inline void security_d_instantiate(struct dentry *dentry, 1496 struct inode *inode) 1497 { } 1498 1499 static inline int security_getselfattr(unsigned int attr, 1500 struct lsm_ctx __user *ctx, 1501 size_t __user *size, u32 flags) 1502 { 1503 return -EOPNOTSUPP; 1504 } 1505 1506 static inline int security_setselfattr(unsigned int attr, 1507 struct lsm_ctx __user *ctx, 1508 size_t size, u32 flags) 1509 { 1510 return -EOPNOTSUPP; 1511 } 1512 1513 static inline int security_getprocattr(struct task_struct *p, int lsmid, 1514 const char *name, char **value) 1515 { 1516 return -EINVAL; 1517 } 1518 1519 static inline int security_setprocattr(int lsmid, char *name, void *value, 1520 size_t size) 1521 { 1522 return -EINVAL; 1523 } 1524 1525 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1526 { 1527 return 0; 1528 } 1529 1530 static inline int security_ismaclabel(const char *name) 1531 { 1532 return 0; 1533 } 1534 1535 static inline int security_secid_to_secctx(u32 secid, char **secdata, 1536 u32 *seclen) 1537 { 1538 return -EOPNOTSUPP; 1539 } 1540 1541 static inline int security_lsmprop_to_secctx(struct lsm_prop *prop, 1542 char **secdata, u32 *seclen) 1543 { 1544 return -EOPNOTSUPP; 1545 } 1546 1547 static inline int security_secctx_to_secid(const char *secdata, 1548 u32 seclen, 1549 u32 *secid) 1550 { 1551 return -EOPNOTSUPP; 1552 } 1553 1554 static inline void security_release_secctx(char *secdata, u32 seclen) 1555 { 1556 } 1557 1558 static inline void security_inode_invalidate_secctx(struct inode *inode) 1559 { 1560 } 1561 1562 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1563 { 1564 return -EOPNOTSUPP; 1565 } 1566 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1567 { 1568 return -EOPNOTSUPP; 1569 } 1570 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1571 { 1572 return -EOPNOTSUPP; 1573 } 1574 static inline int security_locked_down(enum lockdown_reason what) 1575 { 1576 return 0; 1577 } 1578 static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, 1579 u32 *uctx_len, void *val, size_t val_len, 1580 u64 id, u64 flags) 1581 { 1582 return -EOPNOTSUPP; 1583 } 1584 1585 static inline int security_bdev_alloc(struct block_device *bdev) 1586 { 1587 return 0; 1588 } 1589 1590 static inline void security_bdev_free(struct block_device *bdev) 1591 { 1592 } 1593 1594 static inline int security_bdev_setintegrity(struct block_device *bdev, 1595 enum lsm_integrity_type type, 1596 const void *value, size_t size) 1597 { 1598 return 0; 1599 } 1600 1601 #endif /* CONFIG_SECURITY */ 1602 1603 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE) 1604 int security_post_notification(const struct cred *w_cred, 1605 const struct cred *cred, 1606 struct watch_notification *n); 1607 #else 1608 static inline int security_post_notification(const struct cred *w_cred, 1609 const struct cred *cred, 1610 struct watch_notification *n) 1611 { 1612 return 0; 1613 } 1614 #endif 1615 1616 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS) 1617 int security_watch_key(struct key *key); 1618 #else 1619 static inline int security_watch_key(struct key *key) 1620 { 1621 return 0; 1622 } 1623 #endif 1624 1625 #ifdef CONFIG_SECURITY_NETWORK 1626 1627 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1628 int security_unix_may_send(struct socket *sock, struct socket *other); 1629 int security_socket_create(int family, int type, int protocol, int kern); 1630 int security_socket_post_create(struct socket *sock, int family, 1631 int type, int protocol, int kern); 1632 int security_socket_socketpair(struct socket *socka, struct socket *sockb); 1633 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1634 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1635 int security_socket_listen(struct socket *sock, int backlog); 1636 int security_socket_accept(struct socket *sock, struct socket *newsock); 1637 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1638 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1639 int size, int flags); 1640 int security_socket_getsockname(struct socket *sock); 1641 int security_socket_getpeername(struct socket *sock); 1642 int security_socket_getsockopt(struct socket *sock, int level, int optname); 1643 int security_socket_setsockopt(struct socket *sock, int level, int optname); 1644 int security_socket_shutdown(struct socket *sock, int how); 1645 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1646 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, 1647 sockptr_t optlen, unsigned int len); 1648 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1649 int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1650 void security_sk_free(struct sock *sk); 1651 void security_sk_clone(const struct sock *sk, struct sock *newsk); 1652 void security_sk_classify_flow(const struct sock *sk, 1653 struct flowi_common *flic); 1654 void security_req_classify_flow(const struct request_sock *req, 1655 struct flowi_common *flic); 1656 void security_sock_graft(struct sock*sk, struct socket *parent); 1657 int security_inet_conn_request(const struct sock *sk, 1658 struct sk_buff *skb, struct request_sock *req); 1659 void security_inet_csk_clone(struct sock *newsk, 1660 const struct request_sock *req); 1661 void security_inet_conn_established(struct sock *sk, 1662 struct sk_buff *skb); 1663 int security_secmark_relabel_packet(u32 secid); 1664 void security_secmark_refcount_inc(void); 1665 void security_secmark_refcount_dec(void); 1666 int security_tun_dev_alloc_security(void **security); 1667 void security_tun_dev_free_security(void *security); 1668 int security_tun_dev_create(void); 1669 int security_tun_dev_attach_queue(void *security); 1670 int security_tun_dev_attach(struct sock *sk, void *security); 1671 int security_tun_dev_open(void *security); 1672 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb); 1673 int security_sctp_bind_connect(struct sock *sk, int optname, 1674 struct sockaddr *address, int addrlen); 1675 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, 1676 struct sock *newsk); 1677 int security_sctp_assoc_established(struct sctp_association *asoc, 1678 struct sk_buff *skb); 1679 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk); 1680 1681 #else /* CONFIG_SECURITY_NETWORK */ 1682 static inline int security_unix_stream_connect(struct sock *sock, 1683 struct sock *other, 1684 struct sock *newsk) 1685 { 1686 return 0; 1687 } 1688 1689 static inline int security_unix_may_send(struct socket *sock, 1690 struct socket *other) 1691 { 1692 return 0; 1693 } 1694 1695 static inline int security_socket_create(int family, int type, 1696 int protocol, int kern) 1697 { 1698 return 0; 1699 } 1700 1701 static inline int security_socket_post_create(struct socket *sock, 1702 int family, 1703 int type, 1704 int protocol, int kern) 1705 { 1706 return 0; 1707 } 1708 1709 static inline int security_socket_socketpair(struct socket *socka, 1710 struct socket *sockb) 1711 { 1712 return 0; 1713 } 1714 1715 static inline int security_socket_bind(struct socket *sock, 1716 struct sockaddr *address, 1717 int addrlen) 1718 { 1719 return 0; 1720 } 1721 1722 static inline int security_socket_connect(struct socket *sock, 1723 struct sockaddr *address, 1724 int addrlen) 1725 { 1726 return 0; 1727 } 1728 1729 static inline int security_socket_listen(struct socket *sock, int backlog) 1730 { 1731 return 0; 1732 } 1733 1734 static inline int security_socket_accept(struct socket *sock, 1735 struct socket *newsock) 1736 { 1737 return 0; 1738 } 1739 1740 static inline int security_socket_sendmsg(struct socket *sock, 1741 struct msghdr *msg, int size) 1742 { 1743 return 0; 1744 } 1745 1746 static inline int security_socket_recvmsg(struct socket *sock, 1747 struct msghdr *msg, int size, 1748 int flags) 1749 { 1750 return 0; 1751 } 1752 1753 static inline int security_socket_getsockname(struct socket *sock) 1754 { 1755 return 0; 1756 } 1757 1758 static inline int security_socket_getpeername(struct socket *sock) 1759 { 1760 return 0; 1761 } 1762 1763 static inline int security_socket_getsockopt(struct socket *sock, 1764 int level, int optname) 1765 { 1766 return 0; 1767 } 1768 1769 static inline int security_socket_setsockopt(struct socket *sock, 1770 int level, int optname) 1771 { 1772 return 0; 1773 } 1774 1775 static inline int security_socket_shutdown(struct socket *sock, int how) 1776 { 1777 return 0; 1778 } 1779 static inline int security_sock_rcv_skb(struct sock *sk, 1780 struct sk_buff *skb) 1781 { 1782 return 0; 1783 } 1784 1785 static inline int security_socket_getpeersec_stream(struct socket *sock, 1786 sockptr_t optval, 1787 sockptr_t optlen, 1788 unsigned int len) 1789 { 1790 return -ENOPROTOOPT; 1791 } 1792 1793 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1794 { 1795 return -ENOPROTOOPT; 1796 } 1797 1798 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1799 { 1800 return 0; 1801 } 1802 1803 static inline void security_sk_free(struct sock *sk) 1804 { 1805 } 1806 1807 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1808 { 1809 } 1810 1811 static inline void security_sk_classify_flow(const struct sock *sk, 1812 struct flowi_common *flic) 1813 { 1814 } 1815 1816 static inline void security_req_classify_flow(const struct request_sock *req, 1817 struct flowi_common *flic) 1818 { 1819 } 1820 1821 static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1822 { 1823 } 1824 1825 static inline int security_inet_conn_request(const struct sock *sk, 1826 struct sk_buff *skb, struct request_sock *req) 1827 { 1828 return 0; 1829 } 1830 1831 static inline void security_inet_csk_clone(struct sock *newsk, 1832 const struct request_sock *req) 1833 { 1834 } 1835 1836 static inline void security_inet_conn_established(struct sock *sk, 1837 struct sk_buff *skb) 1838 { 1839 } 1840 1841 static inline int security_secmark_relabel_packet(u32 secid) 1842 { 1843 return 0; 1844 } 1845 1846 static inline void security_secmark_refcount_inc(void) 1847 { 1848 } 1849 1850 static inline void security_secmark_refcount_dec(void) 1851 { 1852 } 1853 1854 static inline int security_tun_dev_alloc_security(void **security) 1855 { 1856 return 0; 1857 } 1858 1859 static inline void security_tun_dev_free_security(void *security) 1860 { 1861 } 1862 1863 static inline int security_tun_dev_create(void) 1864 { 1865 return 0; 1866 } 1867 1868 static inline int security_tun_dev_attach_queue(void *security) 1869 { 1870 return 0; 1871 } 1872 1873 static inline int security_tun_dev_attach(struct sock *sk, void *security) 1874 { 1875 return 0; 1876 } 1877 1878 static inline int security_tun_dev_open(void *security) 1879 { 1880 return 0; 1881 } 1882 1883 static inline int security_sctp_assoc_request(struct sctp_association *asoc, 1884 struct sk_buff *skb) 1885 { 1886 return 0; 1887 } 1888 1889 static inline int security_sctp_bind_connect(struct sock *sk, int optname, 1890 struct sockaddr *address, 1891 int addrlen) 1892 { 1893 return 0; 1894 } 1895 1896 static inline void security_sctp_sk_clone(struct sctp_association *asoc, 1897 struct sock *sk, 1898 struct sock *newsk) 1899 { 1900 } 1901 1902 static inline int security_sctp_assoc_established(struct sctp_association *asoc, 1903 struct sk_buff *skb) 1904 { 1905 return 0; 1906 } 1907 1908 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk) 1909 { 1910 return 0; 1911 } 1912 #endif /* CONFIG_SECURITY_NETWORK */ 1913 1914 #ifdef CONFIG_SECURITY_INFINIBAND 1915 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1916 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1917 int security_ib_alloc_security(void **sec); 1918 void security_ib_free_security(void *sec); 1919 #else /* CONFIG_SECURITY_INFINIBAND */ 1920 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1921 { 1922 return 0; 1923 } 1924 1925 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1926 { 1927 return 0; 1928 } 1929 1930 static inline int security_ib_alloc_security(void **sec) 1931 { 1932 return 0; 1933 } 1934 1935 static inline void security_ib_free_security(void *sec) 1936 { 1937 } 1938 #endif /* CONFIG_SECURITY_INFINIBAND */ 1939 1940 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1941 1942 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1943 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1944 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1945 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1946 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1947 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1948 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1949 struct xfrm_sec_ctx *polsec, u32 secid); 1950 int security_xfrm_state_delete(struct xfrm_state *x); 1951 void security_xfrm_state_free(struct xfrm_state *x); 1952 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid); 1953 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1954 struct xfrm_policy *xp, 1955 const struct flowi_common *flic); 1956 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1957 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic); 1958 1959 #else /* CONFIG_SECURITY_NETWORK_XFRM */ 1960 1961 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1962 struct xfrm_user_sec_ctx *sec_ctx, 1963 gfp_t gfp) 1964 { 1965 return 0; 1966 } 1967 1968 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1969 { 1970 return 0; 1971 } 1972 1973 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1974 { 1975 } 1976 1977 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1978 { 1979 return 0; 1980 } 1981 1982 static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1983 struct xfrm_user_sec_ctx *sec_ctx) 1984 { 1985 return 0; 1986 } 1987 1988 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1989 struct xfrm_sec_ctx *polsec, u32 secid) 1990 { 1991 return 0; 1992 } 1993 1994 static inline void security_xfrm_state_free(struct xfrm_state *x) 1995 { 1996 } 1997 1998 static inline int security_xfrm_state_delete(struct xfrm_state *x) 1999 { 2000 return 0; 2001 } 2002 2003 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid) 2004 { 2005 return 0; 2006 } 2007 2008 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 2009 struct xfrm_policy *xp, 2010 const struct flowi_common *flic) 2011 { 2012 return 1; 2013 } 2014 2015 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 2016 { 2017 return 0; 2018 } 2019 2020 static inline void security_skb_classify_flow(struct sk_buff *skb, 2021 struct flowi_common *flic) 2022 { 2023 } 2024 2025 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 2026 2027 #ifdef CONFIG_SECURITY_PATH 2028 int security_path_unlink(const struct path *dir, struct dentry *dentry); 2029 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 2030 int security_path_rmdir(const struct path *dir, struct dentry *dentry); 2031 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 2032 unsigned int dev); 2033 void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry); 2034 int security_path_truncate(const struct path *path); 2035 int security_path_symlink(const struct path *dir, struct dentry *dentry, 2036 const char *old_name); 2037 int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 2038 struct dentry *new_dentry); 2039 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, 2040 const struct path *new_dir, struct dentry *new_dentry, 2041 unsigned int flags); 2042 int security_path_chmod(const struct path *path, umode_t mode); 2043 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 2044 int security_path_chroot(const struct path *path); 2045 #else /* CONFIG_SECURITY_PATH */ 2046 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 2047 { 2048 return 0; 2049 } 2050 2051 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 2052 umode_t mode) 2053 { 2054 return 0; 2055 } 2056 2057 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 2058 { 2059 return 0; 2060 } 2061 2062 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, 2063 umode_t mode, unsigned int dev) 2064 { 2065 return 0; 2066 } 2067 2068 static inline void security_path_post_mknod(struct mnt_idmap *idmap, 2069 struct dentry *dentry) 2070 { } 2071 2072 static inline int security_path_truncate(const struct path *path) 2073 { 2074 return 0; 2075 } 2076 2077 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 2078 const char *old_name) 2079 { 2080 return 0; 2081 } 2082 2083 static inline int security_path_link(struct dentry *old_dentry, 2084 const struct path *new_dir, 2085 struct dentry *new_dentry) 2086 { 2087 return 0; 2088 } 2089 2090 static inline int security_path_rename(const struct path *old_dir, 2091 struct dentry *old_dentry, 2092 const struct path *new_dir, 2093 struct dentry *new_dentry, 2094 unsigned int flags) 2095 { 2096 return 0; 2097 } 2098 2099 static inline int security_path_chmod(const struct path *path, umode_t mode) 2100 { 2101 return 0; 2102 } 2103 2104 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 2105 { 2106 return 0; 2107 } 2108 2109 static inline int security_path_chroot(const struct path *path) 2110 { 2111 return 0; 2112 } 2113 #endif /* CONFIG_SECURITY_PATH */ 2114 2115 #ifdef CONFIG_KEYS 2116 #ifdef CONFIG_SECURITY 2117 2118 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 2119 void security_key_free(struct key *key); 2120 int security_key_permission(key_ref_t key_ref, const struct cred *cred, 2121 enum key_need_perm need_perm); 2122 int security_key_getsecurity(struct key *key, char **_buffer); 2123 void security_key_post_create_or_update(struct key *keyring, struct key *key, 2124 const void *payload, size_t payload_len, 2125 unsigned long flags, bool create); 2126 2127 #else 2128 2129 static inline int security_key_alloc(struct key *key, 2130 const struct cred *cred, 2131 unsigned long flags) 2132 { 2133 return 0; 2134 } 2135 2136 static inline void security_key_free(struct key *key) 2137 { 2138 } 2139 2140 static inline int security_key_permission(key_ref_t key_ref, 2141 const struct cred *cred, 2142 enum key_need_perm need_perm) 2143 { 2144 return 0; 2145 } 2146 2147 static inline int security_key_getsecurity(struct key *key, char **_buffer) 2148 { 2149 *_buffer = NULL; 2150 return 0; 2151 } 2152 2153 static inline void security_key_post_create_or_update(struct key *keyring, 2154 struct key *key, 2155 const void *payload, 2156 size_t payload_len, 2157 unsigned long flags, 2158 bool create) 2159 { } 2160 2161 #endif 2162 #endif /* CONFIG_KEYS */ 2163 2164 #ifdef CONFIG_AUDIT 2165 #ifdef CONFIG_SECURITY 2166 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule, 2167 gfp_t gfp); 2168 int security_audit_rule_known(struct audit_krule *krule); 2169 int security_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op, 2170 void *lsmrule); 2171 void security_audit_rule_free(void *lsmrule); 2172 2173 #else 2174 2175 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 2176 void **lsmrule, gfp_t gfp) 2177 { 2178 return 0; 2179 } 2180 2181 static inline int security_audit_rule_known(struct audit_krule *krule) 2182 { 2183 return 0; 2184 } 2185 2186 static inline int security_audit_rule_match(struct lsm_prop *prop, u32 field, 2187 u32 op, void *lsmrule) 2188 { 2189 return 0; 2190 } 2191 2192 static inline void security_audit_rule_free(void *lsmrule) 2193 { } 2194 2195 #endif /* CONFIG_SECURITY */ 2196 #endif /* CONFIG_AUDIT */ 2197 2198 #ifdef CONFIG_SECURITYFS 2199 2200 extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 2201 struct dentry *parent, void *data, 2202 const struct file_operations *fops); 2203 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 2204 struct dentry *securityfs_create_symlink(const char *name, 2205 struct dentry *parent, 2206 const char *target, 2207 const struct inode_operations *iops); 2208 extern void securityfs_remove(struct dentry *dentry); 2209 extern void securityfs_recursive_remove(struct dentry *dentry); 2210 2211 #else /* CONFIG_SECURITYFS */ 2212 2213 static inline struct dentry *securityfs_create_dir(const char *name, 2214 struct dentry *parent) 2215 { 2216 return ERR_PTR(-ENODEV); 2217 } 2218 2219 static inline struct dentry *securityfs_create_file(const char *name, 2220 umode_t mode, 2221 struct dentry *parent, 2222 void *data, 2223 const struct file_operations *fops) 2224 { 2225 return ERR_PTR(-ENODEV); 2226 } 2227 2228 static inline struct dentry *securityfs_create_symlink(const char *name, 2229 struct dentry *parent, 2230 const char *target, 2231 const struct inode_operations *iops) 2232 { 2233 return ERR_PTR(-ENODEV); 2234 } 2235 2236 static inline void securityfs_remove(struct dentry *dentry) 2237 {} 2238 2239 #endif 2240 2241 #ifdef CONFIG_BPF_SYSCALL 2242 union bpf_attr; 2243 struct bpf_map; 2244 struct bpf_prog; 2245 struct bpf_token; 2246 #ifdef CONFIG_SECURITY 2247 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size); 2248 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode); 2249 extern int security_bpf_prog(struct bpf_prog *prog); 2250 extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2251 struct bpf_token *token); 2252 extern void security_bpf_map_free(struct bpf_map *map); 2253 extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2254 struct bpf_token *token); 2255 extern void security_bpf_prog_free(struct bpf_prog *prog); 2256 extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2257 const struct path *path); 2258 extern void security_bpf_token_free(struct bpf_token *token); 2259 extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd); 2260 extern int security_bpf_token_capable(const struct bpf_token *token, int cap); 2261 #else 2262 static inline int security_bpf(int cmd, union bpf_attr *attr, 2263 unsigned int size) 2264 { 2265 return 0; 2266 } 2267 2268 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode) 2269 { 2270 return 0; 2271 } 2272 2273 static inline int security_bpf_prog(struct bpf_prog *prog) 2274 { 2275 return 0; 2276 } 2277 2278 static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2279 struct bpf_token *token) 2280 { 2281 return 0; 2282 } 2283 2284 static inline void security_bpf_map_free(struct bpf_map *map) 2285 { } 2286 2287 static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2288 struct bpf_token *token) 2289 { 2290 return 0; 2291 } 2292 2293 static inline void security_bpf_prog_free(struct bpf_prog *prog) 2294 { } 2295 2296 static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2297 const struct path *path) 2298 { 2299 return 0; 2300 } 2301 2302 static inline void security_bpf_token_free(struct bpf_token *token) 2303 { } 2304 2305 static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd) 2306 { 2307 return 0; 2308 } 2309 2310 static inline int security_bpf_token_capable(const struct bpf_token *token, int cap) 2311 { 2312 return 0; 2313 } 2314 #endif /* CONFIG_SECURITY */ 2315 #endif /* CONFIG_BPF_SYSCALL */ 2316 2317 #ifdef CONFIG_PERF_EVENTS 2318 struct perf_event_attr; 2319 struct perf_event; 2320 2321 #ifdef CONFIG_SECURITY 2322 extern int security_perf_event_open(struct perf_event_attr *attr, int type); 2323 extern int security_perf_event_alloc(struct perf_event *event); 2324 extern void security_perf_event_free(struct perf_event *event); 2325 extern int security_perf_event_read(struct perf_event *event); 2326 extern int security_perf_event_write(struct perf_event *event); 2327 #else 2328 static inline int security_perf_event_open(struct perf_event_attr *attr, 2329 int type) 2330 { 2331 return 0; 2332 } 2333 2334 static inline int security_perf_event_alloc(struct perf_event *event) 2335 { 2336 return 0; 2337 } 2338 2339 static inline void security_perf_event_free(struct perf_event *event) 2340 { 2341 } 2342 2343 static inline int security_perf_event_read(struct perf_event *event) 2344 { 2345 return 0; 2346 } 2347 2348 static inline int security_perf_event_write(struct perf_event *event) 2349 { 2350 return 0; 2351 } 2352 #endif /* CONFIG_SECURITY */ 2353 #endif /* CONFIG_PERF_EVENTS */ 2354 2355 #ifdef CONFIG_IO_URING 2356 #ifdef CONFIG_SECURITY 2357 extern int security_uring_override_creds(const struct cred *new); 2358 extern int security_uring_sqpoll(void); 2359 extern int security_uring_cmd(struct io_uring_cmd *ioucmd); 2360 #else 2361 static inline int security_uring_override_creds(const struct cred *new) 2362 { 2363 return 0; 2364 } 2365 static inline int security_uring_sqpoll(void) 2366 { 2367 return 0; 2368 } 2369 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd) 2370 { 2371 return 0; 2372 } 2373 #endif /* CONFIG_SECURITY */ 2374 #endif /* CONFIG_IO_URING */ 2375 2376 #ifdef CONFIG_SECURITY 2377 extern void security_initramfs_populated(void); 2378 #else 2379 static inline void security_initramfs_populated(void) 2380 { 2381 } 2382 #endif /* CONFIG_SECURITY */ 2383 2384 #endif /* ! __LINUX_SECURITY_H */ 2385