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