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