1 /* 2 * Linux Security plug 3 * 4 * Copyright (C) 2001 WireX Communications, Inc <[email protected]> 5 * Copyright (C) 2001 Greg Kroah-Hartman <[email protected]> 6 * Copyright (C) 2001 Networks Associates Technology, Inc <[email protected]> 7 * Copyright (C) 2001 James Morris <[email protected]> 8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group) 9 * Copyright (C) 2016 Mellanox Techonologies 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * Due to this file being licensed under the GPL there is controversy over 17 * whether this permits you to write a module that #includes this file 18 * without placing your module under the GPL. Please consult a lawyer for 19 * advice before doing this. 20 * 21 */ 22 23 #ifndef __LINUX_SECURITY_H 24 #define __LINUX_SECURITY_H 25 26 #include <linux/kernel_read_file.h> 27 #include <linux/key.h> 28 #include <linux/capability.h> 29 #include <linux/fs.h> 30 #include <linux/slab.h> 31 #include <linux/err.h> 32 #include <linux/string.h> 33 #include <linux/mm.h> 34 #include <linux/sockptr.h> 35 #include <linux/bpf.h> 36 #include <uapi/linux/lsm.h> 37 #include <linux/lsm/selinux.h> 38 #include <linux/lsm/smack.h> 39 #include <linux/lsm/apparmor.h> 40 #include <linux/lsm/bpf.h> 41 42 struct linux_binprm; 43 struct cred; 44 struct rlimit; 45 struct kernel_siginfo; 46 struct sembuf; 47 struct kern_ipc_perm; 48 struct audit_context; 49 struct super_block; 50 struct inode; 51 struct dentry; 52 struct file; 53 struct vfsmount; 54 struct path; 55 struct qstr; 56 struct iattr; 57 struct fown_struct; 58 struct file_operations; 59 struct msg_msg; 60 struct xattr; 61 struct kernfs_node; 62 struct xfrm_sec_ctx; 63 struct mm_struct; 64 struct fs_context; 65 struct fs_parameter; 66 enum fs_value_type; 67 struct watch; 68 struct watch_notification; 69 struct lsm_ctx; 70 71 /* Default (no) options for the capable function */ 72 #define CAP_OPT_NONE 0x0 73 /* If capable should audit the security request */ 74 #define CAP_OPT_NOAUDIT BIT(1) 75 /* If capable is being called by a setid function */ 76 #define CAP_OPT_INSETID BIT(2) 77 78 /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */ 79 #define SECURITY_LSM_NATIVE_LABELS 1 80 81 struct ctl_table; 82 struct audit_krule; 83 struct user_namespace; 84 struct timezone; 85 86 enum lsm_event { 87 LSM_POLICY_CHANGE, 88 }; 89 90 struct dm_verity_digest { 91 const char *alg; 92 const u8 *digest; 93 size_t digest_len; 94 }; 95 96 enum lsm_integrity_type { 97 LSM_INT_DMVERITY_SIG_VALID, 98 LSM_INT_DMVERITY_ROOTHASH, 99 LSM_INT_FSVERITY_BUILTINSIG_VALID, 100 }; 101 102 /* 103 * These are reasons that can be passed to the security_locked_down() 104 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the 105 * ability for userland to modify kernel code) are placed before 106 * LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel 107 * confidentiality (ie, the ability for userland to extract 108 * information from the running kernel that would otherwise be 109 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX. 110 * 111 * LSM authors should note that the semantics of any given lockdown 112 * reason are not guaranteed to be stable - the same reason may block 113 * one set of features in one kernel release, and a slightly different 114 * set of features in a later kernel release. LSMs that seek to expose 115 * lockdown policy at any level of granularity other than "none", 116 * "integrity" or "confidentiality" are responsible for either 117 * ensuring that they expose a consistent level of functionality to 118 * userland, or ensuring that userland is aware that this is 119 * potentially a moving target. It is easy to misuse this information 120 * in a way that could break userspace. Please be careful not to do 121 * so. 122 * 123 * If you add to this, remember to extend lockdown_reasons in 124 * security/lockdown/lockdown.c. 125 */ 126 enum lockdown_reason { 127 LOCKDOWN_NONE, 128 LOCKDOWN_MODULE_SIGNATURE, 129 LOCKDOWN_DEV_MEM, 130 LOCKDOWN_EFI_TEST, 131 LOCKDOWN_KEXEC, 132 LOCKDOWN_HIBERNATION, 133 LOCKDOWN_PCI_ACCESS, 134 LOCKDOWN_IOPORT, 135 LOCKDOWN_MSR, 136 LOCKDOWN_ACPI_TABLES, 137 LOCKDOWN_DEVICE_TREE, 138 LOCKDOWN_PCMCIA_CIS, 139 LOCKDOWN_TIOCSSERIAL, 140 LOCKDOWN_MODULE_PARAMETERS, 141 LOCKDOWN_MMIOTRACE, 142 LOCKDOWN_DEBUGFS, 143 LOCKDOWN_XMON_WR, 144 LOCKDOWN_BPF_WRITE_USER, 145 LOCKDOWN_DBG_WRITE_KERNEL, 146 LOCKDOWN_RTAS_ERROR_INJECTION, 147 LOCKDOWN_INTEGRITY_MAX, 148 LOCKDOWN_KCORE, 149 LOCKDOWN_KPROBES, 150 LOCKDOWN_BPF_READ_KERNEL, 151 LOCKDOWN_DBG_READ_KERNEL, 152 LOCKDOWN_PERF, 153 LOCKDOWN_TRACEFS, 154 LOCKDOWN_XMON_RW, 155 LOCKDOWN_XFRM_SECRET, 156 LOCKDOWN_CONFIDENTIALITY_MAX, 157 }; 158 159 /* scaffolding */ 160 struct lsm_prop_scaffold { 161 u32 secid; 162 }; 163 164 /* 165 * Data exported by the security modules 166 */ 167 struct lsm_prop { 168 struct lsm_prop_selinux selinux; 169 struct lsm_prop_smack smack; 170 struct lsm_prop_apparmor apparmor; 171 struct lsm_prop_bpf bpf; 172 struct lsm_prop_scaffold scaffold; 173 }; 174 175 extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1]; 176 extern u32 lsm_active_cnt; 177 extern const struct lsm_id *lsm_idlist[]; 178 179 /* These functions are in security/commoncap.c */ 180 extern int cap_capable(const struct cred *cred, struct user_namespace *ns, 181 int cap, unsigned int opts); 182 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz); 183 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); 184 extern int cap_ptrace_traceme(struct task_struct *parent); 185 extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective, 186 kernel_cap_t *inheritable, kernel_cap_t *permitted); 187 extern int cap_capset(struct cred *new, const struct cred *old, 188 const kernel_cap_t *effective, 189 const kernel_cap_t *inheritable, 190 const kernel_cap_t *permitted); 191 extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 192 int cap_inode_setxattr(struct dentry *dentry, const char *name, 193 const void *value, size_t size, int flags); 194 int cap_inode_removexattr(struct mnt_idmap *idmap, 195 struct dentry *dentry, const char *name); 196 int cap_inode_need_killpriv(struct dentry *dentry); 197 int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 198 int cap_inode_getsecurity(struct mnt_idmap *idmap, 199 struct inode *inode, const char *name, void **buffer, 200 bool alloc); 201 extern int cap_mmap_addr(unsigned long addr); 202 extern int cap_mmap_file(struct file *file, unsigned long reqprot, 203 unsigned long prot, unsigned long flags); 204 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); 205 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, 206 unsigned long arg4, unsigned long arg5); 207 extern int cap_task_setscheduler(struct task_struct *p); 208 extern int cap_task_setioprio(struct task_struct *p, int ioprio); 209 extern int cap_task_setnice(struct task_struct *p, int nice); 210 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); 211 212 struct msghdr; 213 struct sk_buff; 214 struct sock; 215 struct sockaddr; 216 struct socket; 217 struct flowi_common; 218 struct dst_entry; 219 struct xfrm_selector; 220 struct xfrm_policy; 221 struct xfrm_state; 222 struct xfrm_user_sec_ctx; 223 struct seq_file; 224 struct sctp_association; 225 226 #ifdef CONFIG_MMU 227 extern unsigned long mmap_min_addr; 228 extern unsigned long dac_mmap_min_addr; 229 #else 230 #define mmap_min_addr 0UL 231 #define dac_mmap_min_addr 0UL 232 #endif 233 234 /* 235 * Values used in the task_security_ops calls 236 */ 237 /* setuid or setgid, id0 == uid or gid */ 238 #define LSM_SETID_ID 1 239 240 /* setreuid or setregid, id0 == real, id1 == eff */ 241 #define LSM_SETID_RE 2 242 243 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ 244 #define LSM_SETID_RES 4 245 246 /* setfsuid or setfsgid, id0 == fsuid or fsgid */ 247 #define LSM_SETID_FS 8 248 249 /* Flags for security_task_prlimit(). */ 250 #define LSM_PRLIMIT_READ 1 251 #define LSM_PRLIMIT_WRITE 2 252 253 /* forward declares to avoid warnings */ 254 struct sched_param; 255 struct request_sock; 256 257 /* bprm->unsafe reasons */ 258 #define LSM_UNSAFE_SHARE 1 259 #define LSM_UNSAFE_PTRACE 2 260 #define LSM_UNSAFE_NO_NEW_PRIVS 4 261 262 #ifdef CONFIG_MMU 263 extern int mmap_min_addr_handler(const struct ctl_table *table, int write, 264 void *buffer, size_t *lenp, loff_t *ppos); 265 #endif 266 267 /* security_inode_init_security callback function to write xattrs */ 268 typedef int (*initxattrs) (struct inode *inode, 269 const struct xattr *xattr_array, void *fs_data); 270 271 272 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */ 273 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM, 274 #define __data_id_stringify(dummy, str) #str, 275 276 enum kernel_load_data_id { 277 __kernel_read_file_id(__data_id_enumify) 278 }; 279 280 static const char * const kernel_load_data_str[] = { 281 __kernel_read_file_id(__data_id_stringify) 282 }; 283 284 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id) 285 { 286 if ((unsigned)id >= LOADING_MAX_ID) 287 return kernel_load_data_str[LOADING_UNKNOWN]; 288 289 return kernel_load_data_str[id]; 290 } 291 292 /** 293 * lsmprop_init - initialize a lsm_prop structure 294 * @prop: Pointer to the data to initialize 295 * 296 * Set all secid for all modules to the specified value. 297 */ 298 static inline void lsmprop_init(struct lsm_prop *prop) 299 { 300 memset(prop, 0, sizeof(*prop)); 301 } 302 303 #ifdef CONFIG_SECURITY 304 305 /** 306 * lsmprop_is_set - report if there is a value in the lsm_prop 307 * @prop: Pointer to the exported LSM data 308 * 309 * Returns true if there is a value set, false otherwise 310 */ 311 static inline bool lsmprop_is_set(struct lsm_prop *prop) 312 { 313 const struct lsm_prop empty = {}; 314 315 return !!memcmp(prop, &empty, sizeof(*prop)); 316 } 317 318 int call_blocking_lsm_notifier(enum lsm_event event, void *data); 319 int register_blocking_lsm_notifier(struct notifier_block *nb); 320 int unregister_blocking_lsm_notifier(struct notifier_block *nb); 321 322 /* prototypes */ 323 extern int security_init(void); 324 extern int early_security_init(void); 325 extern u64 lsm_name_to_attr(const char *name); 326 327 /* Security operations */ 328 int security_binder_set_context_mgr(const struct cred *mgr); 329 int security_binder_transaction(const struct cred *from, 330 const struct cred *to); 331 int security_binder_transfer_binder(const struct cred *from, 332 const struct cred *to); 333 int security_binder_transfer_file(const struct cred *from, 334 const struct cred *to, const struct file *file); 335 int security_ptrace_access_check(struct task_struct *child, unsigned int mode); 336 int security_ptrace_traceme(struct task_struct *parent); 337 int security_capget(const struct task_struct *target, 338 kernel_cap_t *effective, 339 kernel_cap_t *inheritable, 340 kernel_cap_t *permitted); 341 int security_capset(struct cred *new, const struct cred *old, 342 const kernel_cap_t *effective, 343 const kernel_cap_t *inheritable, 344 const kernel_cap_t *permitted); 345 int security_capable(const struct cred *cred, 346 struct user_namespace *ns, 347 int cap, 348 unsigned int opts); 349 int security_quotactl(int cmds, int type, int id, const struct super_block *sb); 350 int security_quota_on(struct dentry *dentry); 351 int security_syslog(int type); 352 int security_settime64(const struct timespec64 *ts, const struct timezone *tz); 353 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); 354 int security_bprm_creds_for_exec(struct linux_binprm *bprm); 355 int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 356 int security_bprm_check(struct linux_binprm *bprm); 357 void security_bprm_committing_creds(const struct linux_binprm *bprm); 358 void security_bprm_committed_creds(const struct linux_binprm *bprm); 359 int security_fs_context_submount(struct fs_context *fc, struct super_block *reference); 360 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc); 361 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param); 362 int security_sb_alloc(struct super_block *sb); 363 void security_sb_delete(struct super_block *sb); 364 void security_sb_free(struct super_block *sb); 365 void security_free_mnt_opts(void **mnt_opts); 366 int security_sb_eat_lsm_opts(char *options, void **mnt_opts); 367 int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts); 368 int security_sb_remount(struct super_block *sb, void *mnt_opts); 369 int security_sb_kern_mount(const struct super_block *sb); 370 int security_sb_show_options(struct seq_file *m, struct super_block *sb); 371 int security_sb_statfs(struct dentry *dentry); 372 int security_sb_mount(const char *dev_name, const struct path *path, 373 const char *type, unsigned long flags, void *data); 374 int security_sb_umount(struct vfsmount *mnt, int flags); 375 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path); 376 int security_sb_set_mnt_opts(struct super_block *sb, 377 void *mnt_opts, 378 unsigned long kern_flags, 379 unsigned long *set_kern_flags); 380 int security_sb_clone_mnt_opts(const struct super_block *oldsb, 381 struct super_block *newsb, 382 unsigned long kern_flags, 383 unsigned long *set_kern_flags); 384 int security_move_mount(const struct path *from_path, const struct path *to_path); 385 int security_dentry_init_security(struct dentry *dentry, int mode, 386 const struct qstr *name, 387 const char **xattr_name, void **ctx, 388 u32 *ctxlen); 389 int security_dentry_create_files_as(struct dentry *dentry, int mode, 390 struct qstr *name, 391 const struct cred *old, 392 struct cred *new); 393 int security_path_notify(const struct path *path, u64 mask, 394 unsigned int obj_type); 395 int security_inode_alloc(struct inode *inode); 396 void security_inode_free(struct inode *inode); 397 int security_inode_init_security(struct inode *inode, struct inode *dir, 398 const struct qstr *qstr, 399 initxattrs initxattrs, void *fs_data); 400 int security_inode_init_security_anon(struct inode *inode, 401 const struct qstr *name, 402 const struct inode *context_inode); 403 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode); 404 void security_inode_post_create_tmpfile(struct mnt_idmap *idmap, 405 struct inode *inode); 406 int security_inode_link(struct dentry *old_dentry, struct inode *dir, 407 struct dentry *new_dentry); 408 int security_inode_unlink(struct inode *dir, struct dentry *dentry); 409 int security_inode_symlink(struct inode *dir, struct dentry *dentry, 410 const char *old_name); 411 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode); 412 int security_inode_rmdir(struct inode *dir, struct dentry *dentry); 413 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev); 414 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 415 struct inode *new_dir, struct dentry *new_dentry, 416 unsigned int flags); 417 int security_inode_readlink(struct dentry *dentry); 418 int security_inode_follow_link(struct dentry *dentry, struct inode *inode, 419 bool rcu); 420 int security_inode_permission(struct inode *inode, int mask); 421 int security_inode_setattr(struct mnt_idmap *idmap, 422 struct dentry *dentry, struct iattr *attr); 423 void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 424 int ia_valid); 425 int security_inode_getattr(const struct path *path); 426 int security_inode_setxattr(struct mnt_idmap *idmap, 427 struct dentry *dentry, const char *name, 428 const void *value, size_t size, int flags); 429 int security_inode_set_acl(struct mnt_idmap *idmap, 430 struct dentry *dentry, const char *acl_name, 431 struct posix_acl *kacl); 432 void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name, 433 struct posix_acl *kacl); 434 int security_inode_get_acl(struct mnt_idmap *idmap, 435 struct dentry *dentry, const char *acl_name); 436 int security_inode_remove_acl(struct mnt_idmap *idmap, 437 struct dentry *dentry, const char *acl_name); 438 void security_inode_post_remove_acl(struct mnt_idmap *idmap, 439 struct dentry *dentry, 440 const char *acl_name); 441 void security_inode_post_setxattr(struct dentry *dentry, const char *name, 442 const void *value, size_t size, int flags); 443 int security_inode_getxattr(struct dentry *dentry, const char *name); 444 int security_inode_listxattr(struct dentry *dentry); 445 int security_inode_removexattr(struct mnt_idmap *idmap, 446 struct dentry *dentry, const char *name); 447 void security_inode_post_removexattr(struct dentry *dentry, const char *name); 448 int security_inode_need_killpriv(struct dentry *dentry); 449 int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 450 int security_inode_getsecurity(struct mnt_idmap *idmap, 451 struct inode *inode, const char *name, 452 void **buffer, bool alloc); 453 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); 454 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); 455 void security_inode_getsecid(struct inode *inode, u32 *secid); 456 int security_inode_copy_up(struct dentry *src, struct cred **new); 457 int security_inode_copy_up_xattr(struct dentry *src, const char *name); 458 int security_inode_setintegrity(const struct inode *inode, 459 enum lsm_integrity_type type, const void *value, 460 size_t size); 461 int security_kernfs_init_security(struct kernfs_node *kn_dir, 462 struct kernfs_node *kn); 463 int security_file_permission(struct file *file, int mask); 464 int security_file_alloc(struct file *file); 465 void security_file_release(struct file *file); 466 void security_file_free(struct file *file); 467 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 468 int security_file_ioctl_compat(struct file *file, unsigned int cmd, 469 unsigned long arg); 470 int security_mmap_file(struct file *file, unsigned long prot, 471 unsigned long flags); 472 int security_mmap_addr(unsigned long addr); 473 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 474 unsigned long prot); 475 int security_file_lock(struct file *file, unsigned int cmd); 476 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); 477 void security_file_set_fowner(struct file *file); 478 int security_file_send_sigiotask(struct task_struct *tsk, 479 struct fown_struct *fown, int sig); 480 int security_file_receive(struct file *file); 481 int security_file_open(struct file *file); 482 int security_file_post_open(struct file *file, int mask); 483 int security_file_truncate(struct file *file); 484 int security_task_alloc(struct task_struct *task, unsigned long clone_flags); 485 void security_task_free(struct task_struct *task); 486 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); 487 void security_cred_free(struct cred *cred); 488 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); 489 void security_transfer_creds(struct cred *new, const struct cred *old); 490 void security_cred_getsecid(const struct cred *c, u32 *secid); 491 int security_kernel_act_as(struct cred *new, u32 secid); 492 int security_kernel_create_files_as(struct cred *new, struct inode *inode); 493 int security_kernel_module_request(char *kmod_name); 494 int security_kernel_load_data(enum kernel_load_data_id id, bool contents); 495 int security_kernel_post_load_data(char *buf, loff_t size, 496 enum kernel_load_data_id id, 497 char *description); 498 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id, 499 bool contents); 500 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 501 enum kernel_read_file_id id); 502 int security_task_fix_setuid(struct cred *new, const struct cred *old, 503 int flags); 504 int security_task_fix_setgid(struct cred *new, const struct cred *old, 505 int flags); 506 int security_task_fix_setgroups(struct cred *new, const struct cred *old); 507 int security_task_setpgid(struct task_struct *p, pid_t pgid); 508 int security_task_getpgid(struct task_struct *p); 509 int security_task_getsid(struct task_struct *p); 510 void security_current_getsecid_subj(u32 *secid); 511 void security_task_getsecid_obj(struct task_struct *p, u32 *secid); 512 int security_task_setnice(struct task_struct *p, int nice); 513 int security_task_setioprio(struct task_struct *p, int ioprio); 514 int security_task_getioprio(struct task_struct *p); 515 int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 516 unsigned int flags); 517 int security_task_setrlimit(struct task_struct *p, unsigned int resource, 518 struct rlimit *new_rlim); 519 int security_task_setscheduler(struct task_struct *p); 520 int security_task_getscheduler(struct task_struct *p); 521 int security_task_movememory(struct task_struct *p); 522 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, 523 int sig, const struct cred *cred); 524 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 525 unsigned long arg4, unsigned long arg5); 526 void security_task_to_inode(struct task_struct *p, struct inode *inode); 527 int security_create_user_ns(const struct cred *cred); 528 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 529 void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, struct lsm_prop *prop); 530 int security_msg_msg_alloc(struct msg_msg *msg); 531 void security_msg_msg_free(struct msg_msg *msg); 532 int security_msg_queue_alloc(struct kern_ipc_perm *msq); 533 void security_msg_queue_free(struct kern_ipc_perm *msq); 534 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg); 535 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd); 536 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 537 struct msg_msg *msg, int msqflg); 538 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, 539 struct task_struct *target, long type, int mode); 540 int security_shm_alloc(struct kern_ipc_perm *shp); 541 void security_shm_free(struct kern_ipc_perm *shp); 542 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg); 543 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd); 544 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); 545 int security_sem_alloc(struct kern_ipc_perm *sma); 546 void security_sem_free(struct kern_ipc_perm *sma); 547 int security_sem_associate(struct kern_ipc_perm *sma, int semflg); 548 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd); 549 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, 550 unsigned nsops, int alter); 551 void security_d_instantiate(struct dentry *dentry, struct inode *inode); 552 int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 553 u32 __user *size, u32 flags); 554 int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 555 u32 size, u32 flags); 556 int security_getprocattr(struct task_struct *p, int lsmid, const char *name, 557 char **value); 558 int security_setprocattr(int lsmid, const char *name, void *value, size_t size); 559 int security_netlink_send(struct sock *sk, struct sk_buff *skb); 560 int security_ismaclabel(const char *name); 561 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 562 int security_lsmprop_to_secctx(struct lsm_prop *prop, char **secdata, u32 *seclen); 563 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 564 void security_release_secctx(char *secdata, u32 seclen); 565 void security_inode_invalidate_secctx(struct inode *inode); 566 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 567 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 568 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 569 int security_locked_down(enum lockdown_reason what); 570 int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len, 571 void *val, size_t val_len, u64 id, u64 flags); 572 int security_bdev_alloc(struct block_device *bdev); 573 void security_bdev_free(struct block_device *bdev); 574 int security_bdev_setintegrity(struct block_device *bdev, 575 enum lsm_integrity_type type, const void *value, 576 size_t size); 577 #else /* CONFIG_SECURITY */ 578 579 /** 580 * lsmprop_is_set - report if there is a value in the lsm_prop 581 * @prop: Pointer to the exported LSM data 582 * 583 * Returns true if there is a value set, false otherwise 584 */ 585 static inline bool lsmprop_is_set(struct lsm_prop *prop) 586 { 587 return false; 588 } 589 590 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data) 591 { 592 return 0; 593 } 594 595 static inline int register_blocking_lsm_notifier(struct notifier_block *nb) 596 { 597 return 0; 598 } 599 600 static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb) 601 { 602 return 0; 603 } 604 605 static inline u64 lsm_name_to_attr(const char *name) 606 { 607 return LSM_ATTR_UNDEF; 608 } 609 610 static inline void security_free_mnt_opts(void **mnt_opts) 611 { 612 } 613 614 /* 615 * This is the default capabilities functionality. Most of these functions 616 * are just stubbed out, but a few must call the proper capable code. 617 */ 618 619 static inline int security_init(void) 620 { 621 return 0; 622 } 623 624 static inline int early_security_init(void) 625 { 626 return 0; 627 } 628 629 static inline int security_binder_set_context_mgr(const struct cred *mgr) 630 { 631 return 0; 632 } 633 634 static inline int security_binder_transaction(const struct cred *from, 635 const struct cred *to) 636 { 637 return 0; 638 } 639 640 static inline int security_binder_transfer_binder(const struct cred *from, 641 const struct cred *to) 642 { 643 return 0; 644 } 645 646 static inline int security_binder_transfer_file(const struct cred *from, 647 const struct cred *to, 648 const struct file *file) 649 { 650 return 0; 651 } 652 653 static inline int security_ptrace_access_check(struct task_struct *child, 654 unsigned int mode) 655 { 656 return cap_ptrace_access_check(child, mode); 657 } 658 659 static inline int security_ptrace_traceme(struct task_struct *parent) 660 { 661 return cap_ptrace_traceme(parent); 662 } 663 664 static inline int security_capget(const struct task_struct *target, 665 kernel_cap_t *effective, 666 kernel_cap_t *inheritable, 667 kernel_cap_t *permitted) 668 { 669 return cap_capget(target, effective, inheritable, permitted); 670 } 671 672 static inline int security_capset(struct cred *new, 673 const struct cred *old, 674 const kernel_cap_t *effective, 675 const kernel_cap_t *inheritable, 676 const kernel_cap_t *permitted) 677 { 678 return cap_capset(new, old, effective, inheritable, permitted); 679 } 680 681 static inline int security_capable(const struct cred *cred, 682 struct user_namespace *ns, 683 int cap, 684 unsigned int opts) 685 { 686 return cap_capable(cred, ns, cap, opts); 687 } 688 689 static inline int security_quotactl(int cmds, int type, int id, 690 const struct super_block *sb) 691 { 692 return 0; 693 } 694 695 static inline int security_quota_on(struct dentry *dentry) 696 { 697 return 0; 698 } 699 700 static inline int security_syslog(int type) 701 { 702 return 0; 703 } 704 705 static inline int security_settime64(const struct timespec64 *ts, 706 const struct timezone *tz) 707 { 708 return cap_settime(ts, tz); 709 } 710 711 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 712 { 713 return __vm_enough_memory(mm, pages, !cap_vm_enough_memory(mm, pages)); 714 } 715 716 static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm) 717 { 718 return 0; 719 } 720 721 static inline int security_bprm_creds_from_file(struct linux_binprm *bprm, 722 const struct file *file) 723 { 724 return cap_bprm_creds_from_file(bprm, file); 725 } 726 727 static inline int security_bprm_check(struct linux_binprm *bprm) 728 { 729 return 0; 730 } 731 732 static inline void security_bprm_committing_creds(const struct linux_binprm *bprm) 733 { 734 } 735 736 static inline void security_bprm_committed_creds(const struct linux_binprm *bprm) 737 { 738 } 739 740 static inline int security_fs_context_submount(struct fs_context *fc, 741 struct super_block *reference) 742 { 743 return 0; 744 } 745 static inline int security_fs_context_dup(struct fs_context *fc, 746 struct fs_context *src_fc) 747 { 748 return 0; 749 } 750 static inline int security_fs_context_parse_param(struct fs_context *fc, 751 struct fs_parameter *param) 752 { 753 return -ENOPARAM; 754 } 755 756 static inline int security_sb_alloc(struct super_block *sb) 757 { 758 return 0; 759 } 760 761 static inline void security_sb_delete(struct super_block *sb) 762 { } 763 764 static inline void security_sb_free(struct super_block *sb) 765 { } 766 767 static inline int security_sb_eat_lsm_opts(char *options, 768 void **mnt_opts) 769 { 770 return 0; 771 } 772 773 static inline int security_sb_remount(struct super_block *sb, 774 void *mnt_opts) 775 { 776 return 0; 777 } 778 779 static inline int security_sb_mnt_opts_compat(struct super_block *sb, 780 void *mnt_opts) 781 { 782 return 0; 783 } 784 785 786 static inline int security_sb_kern_mount(struct super_block *sb) 787 { 788 return 0; 789 } 790 791 static inline int security_sb_show_options(struct seq_file *m, 792 struct super_block *sb) 793 { 794 return 0; 795 } 796 797 static inline int security_sb_statfs(struct dentry *dentry) 798 { 799 return 0; 800 } 801 802 static inline int security_sb_mount(const char *dev_name, const struct path *path, 803 const char *type, unsigned long flags, 804 void *data) 805 { 806 return 0; 807 } 808 809 static inline int security_sb_umount(struct vfsmount *mnt, int flags) 810 { 811 return 0; 812 } 813 814 static inline int security_sb_pivotroot(const struct path *old_path, 815 const struct path *new_path) 816 { 817 return 0; 818 } 819 820 static inline int security_sb_set_mnt_opts(struct super_block *sb, 821 void *mnt_opts, 822 unsigned long kern_flags, 823 unsigned long *set_kern_flags) 824 { 825 return 0; 826 } 827 828 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, 829 struct super_block *newsb, 830 unsigned long kern_flags, 831 unsigned long *set_kern_flags) 832 { 833 return 0; 834 } 835 836 static inline int security_move_mount(const struct path *from_path, 837 const struct path *to_path) 838 { 839 return 0; 840 } 841 842 static inline int security_path_notify(const struct path *path, u64 mask, 843 unsigned int obj_type) 844 { 845 return 0; 846 } 847 848 static inline int security_inode_alloc(struct inode *inode) 849 { 850 return 0; 851 } 852 853 static inline void security_inode_free(struct inode *inode) 854 { } 855 856 static inline int security_dentry_init_security(struct dentry *dentry, 857 int mode, 858 const struct qstr *name, 859 const char **xattr_name, 860 void **ctx, 861 u32 *ctxlen) 862 { 863 return -EOPNOTSUPP; 864 } 865 866 static inline int security_dentry_create_files_as(struct dentry *dentry, 867 int mode, struct qstr *name, 868 const struct cred *old, 869 struct cred *new) 870 { 871 return 0; 872 } 873 874 875 static inline int security_inode_init_security(struct inode *inode, 876 struct inode *dir, 877 const struct qstr *qstr, 878 const initxattrs xattrs, 879 void *fs_data) 880 { 881 return 0; 882 } 883 884 static inline int security_inode_init_security_anon(struct inode *inode, 885 const struct qstr *name, 886 const struct inode *context_inode) 887 { 888 return 0; 889 } 890 891 static inline int security_inode_create(struct inode *dir, 892 struct dentry *dentry, 893 umode_t mode) 894 { 895 return 0; 896 } 897 898 static inline void 899 security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode) 900 { } 901 902 static inline int security_inode_link(struct dentry *old_dentry, 903 struct inode *dir, 904 struct dentry *new_dentry) 905 { 906 return 0; 907 } 908 909 static inline int security_inode_unlink(struct inode *dir, 910 struct dentry *dentry) 911 { 912 return 0; 913 } 914 915 static inline int security_inode_symlink(struct inode *dir, 916 struct dentry *dentry, 917 const char *old_name) 918 { 919 return 0; 920 } 921 922 static inline int security_inode_mkdir(struct inode *dir, 923 struct dentry *dentry, 924 int mode) 925 { 926 return 0; 927 } 928 929 static inline int security_inode_rmdir(struct inode *dir, 930 struct dentry *dentry) 931 { 932 return 0; 933 } 934 935 static inline int security_inode_mknod(struct inode *dir, 936 struct dentry *dentry, 937 int mode, dev_t dev) 938 { 939 return 0; 940 } 941 942 static inline int security_inode_rename(struct inode *old_dir, 943 struct dentry *old_dentry, 944 struct inode *new_dir, 945 struct dentry *new_dentry, 946 unsigned int flags) 947 { 948 return 0; 949 } 950 951 static inline int security_inode_readlink(struct dentry *dentry) 952 { 953 return 0; 954 } 955 956 static inline int security_inode_follow_link(struct dentry *dentry, 957 struct inode *inode, 958 bool rcu) 959 { 960 return 0; 961 } 962 963 static inline int security_inode_permission(struct inode *inode, int mask) 964 { 965 return 0; 966 } 967 968 static inline int security_inode_setattr(struct mnt_idmap *idmap, 969 struct dentry *dentry, 970 struct iattr *attr) 971 { 972 return 0; 973 } 974 975 static inline void 976 security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 977 int ia_valid) 978 { } 979 980 static inline int security_inode_getattr(const struct path *path) 981 { 982 return 0; 983 } 984 985 static inline int security_inode_setxattr(struct mnt_idmap *idmap, 986 struct dentry *dentry, const char *name, const void *value, 987 size_t size, int flags) 988 { 989 return cap_inode_setxattr(dentry, name, value, size, flags); 990 } 991 992 static inline int security_inode_set_acl(struct mnt_idmap *idmap, 993 struct dentry *dentry, 994 const char *acl_name, 995 struct posix_acl *kacl) 996 { 997 return 0; 998 } 999 1000 static inline void security_inode_post_set_acl(struct dentry *dentry, 1001 const char *acl_name, 1002 struct posix_acl *kacl) 1003 { } 1004 1005 static inline int security_inode_get_acl(struct mnt_idmap *idmap, 1006 struct dentry *dentry, 1007 const char *acl_name) 1008 { 1009 return 0; 1010 } 1011 1012 static inline int security_inode_remove_acl(struct mnt_idmap *idmap, 1013 struct dentry *dentry, 1014 const char *acl_name) 1015 { 1016 return 0; 1017 } 1018 1019 static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap, 1020 struct dentry *dentry, 1021 const char *acl_name) 1022 { } 1023 1024 static inline void security_inode_post_setxattr(struct dentry *dentry, 1025 const char *name, const void *value, size_t size, int flags) 1026 { } 1027 1028 static inline int security_inode_getxattr(struct dentry *dentry, 1029 const char *name) 1030 { 1031 return 0; 1032 } 1033 1034 static inline int security_inode_listxattr(struct dentry *dentry) 1035 { 1036 return 0; 1037 } 1038 1039 static inline int security_inode_removexattr(struct mnt_idmap *idmap, 1040 struct dentry *dentry, 1041 const char *name) 1042 { 1043 return cap_inode_removexattr(idmap, dentry, name); 1044 } 1045 1046 static inline void security_inode_post_removexattr(struct dentry *dentry, 1047 const char *name) 1048 { } 1049 1050 static inline int security_inode_need_killpriv(struct dentry *dentry) 1051 { 1052 return cap_inode_need_killpriv(dentry); 1053 } 1054 1055 static inline int security_inode_killpriv(struct mnt_idmap *idmap, 1056 struct dentry *dentry) 1057 { 1058 return cap_inode_killpriv(idmap, dentry); 1059 } 1060 1061 static inline int security_inode_getsecurity(struct mnt_idmap *idmap, 1062 struct inode *inode, 1063 const char *name, void **buffer, 1064 bool alloc) 1065 { 1066 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc); 1067 } 1068 1069 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 1070 { 1071 return -EOPNOTSUPP; 1072 } 1073 1074 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 1075 { 1076 return 0; 1077 } 1078 1079 static inline void security_inode_getsecid(struct inode *inode, u32 *secid) 1080 { 1081 *secid = 0; 1082 } 1083 1084 static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 1085 { 1086 return 0; 1087 } 1088 1089 static inline int security_inode_setintegrity(const struct inode *inode, 1090 enum lsm_integrity_type type, 1091 const void *value, size_t size) 1092 { 1093 return 0; 1094 } 1095 1096 static inline int security_kernfs_init_security(struct kernfs_node *kn_dir, 1097 struct kernfs_node *kn) 1098 { 1099 return 0; 1100 } 1101 1102 static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name) 1103 { 1104 return -EOPNOTSUPP; 1105 } 1106 1107 static inline int security_file_permission(struct file *file, int mask) 1108 { 1109 return 0; 1110 } 1111 1112 static inline int security_file_alloc(struct file *file) 1113 { 1114 return 0; 1115 } 1116 1117 static inline void security_file_release(struct file *file) 1118 { } 1119 1120 static inline void security_file_free(struct file *file) 1121 { } 1122 1123 static inline int security_file_ioctl(struct file *file, unsigned int cmd, 1124 unsigned long arg) 1125 { 1126 return 0; 1127 } 1128 1129 static inline int security_file_ioctl_compat(struct file *file, 1130 unsigned int cmd, 1131 unsigned long arg) 1132 { 1133 return 0; 1134 } 1135 1136 static inline int security_mmap_file(struct file *file, unsigned long prot, 1137 unsigned long flags) 1138 { 1139 return 0; 1140 } 1141 1142 static inline int security_mmap_addr(unsigned long addr) 1143 { 1144 return cap_mmap_addr(addr); 1145 } 1146 1147 static inline int security_file_mprotect(struct vm_area_struct *vma, 1148 unsigned long reqprot, 1149 unsigned long prot) 1150 { 1151 return 0; 1152 } 1153 1154 static inline int security_file_lock(struct file *file, unsigned int cmd) 1155 { 1156 return 0; 1157 } 1158 1159 static inline int security_file_fcntl(struct file *file, unsigned int cmd, 1160 unsigned long arg) 1161 { 1162 return 0; 1163 } 1164 1165 static inline void security_file_set_fowner(struct file *file) 1166 { 1167 return; 1168 } 1169 1170 static inline int security_file_send_sigiotask(struct task_struct *tsk, 1171 struct fown_struct *fown, 1172 int sig) 1173 { 1174 return 0; 1175 } 1176 1177 static inline int security_file_receive(struct file *file) 1178 { 1179 return 0; 1180 } 1181 1182 static inline int security_file_open(struct file *file) 1183 { 1184 return 0; 1185 } 1186 1187 static inline int security_file_post_open(struct file *file, int mask) 1188 { 1189 return 0; 1190 } 1191 1192 static inline int security_file_truncate(struct file *file) 1193 { 1194 return 0; 1195 } 1196 1197 static inline int security_task_alloc(struct task_struct *task, 1198 unsigned long clone_flags) 1199 { 1200 return 0; 1201 } 1202 1203 static inline void security_task_free(struct task_struct *task) 1204 { } 1205 1206 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 1207 { 1208 return 0; 1209 } 1210 1211 static inline void security_cred_free(struct cred *cred) 1212 { } 1213 1214 static inline int security_prepare_creds(struct cred *new, 1215 const struct cred *old, 1216 gfp_t gfp) 1217 { 1218 return 0; 1219 } 1220 1221 static inline void security_transfer_creds(struct cred *new, 1222 const struct cred *old) 1223 { 1224 } 1225 1226 static inline void security_cred_getsecid(const struct cred *c, u32 *secid) 1227 { 1228 *secid = 0; 1229 } 1230 1231 static inline int security_kernel_act_as(struct cred *cred, u32 secid) 1232 { 1233 return 0; 1234 } 1235 1236 static inline int security_kernel_create_files_as(struct cred *cred, 1237 struct inode *inode) 1238 { 1239 return 0; 1240 } 1241 1242 static inline int security_kernel_module_request(char *kmod_name) 1243 { 1244 return 0; 1245 } 1246 1247 static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents) 1248 { 1249 return 0; 1250 } 1251 1252 static inline int security_kernel_post_load_data(char *buf, loff_t size, 1253 enum kernel_load_data_id id, 1254 char *description) 1255 { 1256 return 0; 1257 } 1258 1259 static inline int security_kernel_read_file(struct file *file, 1260 enum kernel_read_file_id id, 1261 bool contents) 1262 { 1263 return 0; 1264 } 1265 1266 static inline int security_kernel_post_read_file(struct file *file, 1267 char *buf, loff_t size, 1268 enum kernel_read_file_id id) 1269 { 1270 return 0; 1271 } 1272 1273 static inline int security_task_fix_setuid(struct cred *new, 1274 const struct cred *old, 1275 int flags) 1276 { 1277 return cap_task_fix_setuid(new, old, flags); 1278 } 1279 1280 static inline int security_task_fix_setgid(struct cred *new, 1281 const struct cred *old, 1282 int flags) 1283 { 1284 return 0; 1285 } 1286 1287 static inline int security_task_fix_setgroups(struct cred *new, 1288 const struct cred *old) 1289 { 1290 return 0; 1291 } 1292 1293 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 1294 { 1295 return 0; 1296 } 1297 1298 static inline int security_task_getpgid(struct task_struct *p) 1299 { 1300 return 0; 1301 } 1302 1303 static inline int security_task_getsid(struct task_struct *p) 1304 { 1305 return 0; 1306 } 1307 1308 static inline void security_current_getsecid_subj(u32 *secid) 1309 { 1310 *secid = 0; 1311 } 1312 1313 static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid) 1314 { 1315 *secid = 0; 1316 } 1317 1318 static inline int security_task_setnice(struct task_struct *p, int nice) 1319 { 1320 return cap_task_setnice(p, nice); 1321 } 1322 1323 static inline int security_task_setioprio(struct task_struct *p, int ioprio) 1324 { 1325 return cap_task_setioprio(p, ioprio); 1326 } 1327 1328 static inline int security_task_getioprio(struct task_struct *p) 1329 { 1330 return 0; 1331 } 1332 1333 static inline int security_task_prlimit(const struct cred *cred, 1334 const struct cred *tcred, 1335 unsigned int flags) 1336 { 1337 return 0; 1338 } 1339 1340 static inline int security_task_setrlimit(struct task_struct *p, 1341 unsigned int resource, 1342 struct rlimit *new_rlim) 1343 { 1344 return 0; 1345 } 1346 1347 static inline int security_task_setscheduler(struct task_struct *p) 1348 { 1349 return cap_task_setscheduler(p); 1350 } 1351 1352 static inline int security_task_getscheduler(struct task_struct *p) 1353 { 1354 return 0; 1355 } 1356 1357 static inline int security_task_movememory(struct task_struct *p) 1358 { 1359 return 0; 1360 } 1361 1362 static inline int security_task_kill(struct task_struct *p, 1363 struct kernel_siginfo *info, int sig, 1364 const struct cred *cred) 1365 { 1366 return 0; 1367 } 1368 1369 static inline int security_task_prctl(int option, unsigned long arg2, 1370 unsigned long arg3, 1371 unsigned long arg4, 1372 unsigned long arg5) 1373 { 1374 return cap_task_prctl(option, arg2, arg3, arg4, arg5); 1375 } 1376 1377 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1378 { } 1379 1380 static inline int security_create_user_ns(const struct cred *cred) 1381 { 1382 return 0; 1383 } 1384 1385 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1386 short flag) 1387 { 1388 return 0; 1389 } 1390 1391 static inline void security_ipc_getlsmprop(struct kern_ipc_perm *ipcp, 1392 struct lsm_prop *prop) 1393 { 1394 lsmprop_init(prop); 1395 } 1396 1397 static inline int security_msg_msg_alloc(struct msg_msg *msg) 1398 { 1399 return 0; 1400 } 1401 1402 static inline void security_msg_msg_free(struct msg_msg *msg) 1403 { } 1404 1405 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) 1406 { 1407 return 0; 1408 } 1409 1410 static inline void security_msg_queue_free(struct kern_ipc_perm *msq) 1411 { } 1412 1413 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, 1414 int msqflg) 1415 { 1416 return 0; 1417 } 1418 1419 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) 1420 { 1421 return 0; 1422 } 1423 1424 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 1425 struct msg_msg *msg, int msqflg) 1426 { 1427 return 0; 1428 } 1429 1430 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, 1431 struct msg_msg *msg, 1432 struct task_struct *target, 1433 long type, int mode) 1434 { 1435 return 0; 1436 } 1437 1438 static inline int security_shm_alloc(struct kern_ipc_perm *shp) 1439 { 1440 return 0; 1441 } 1442 1443 static inline void security_shm_free(struct kern_ipc_perm *shp) 1444 { } 1445 1446 static inline int security_shm_associate(struct kern_ipc_perm *shp, 1447 int shmflg) 1448 { 1449 return 0; 1450 } 1451 1452 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) 1453 { 1454 return 0; 1455 } 1456 1457 static inline int security_shm_shmat(struct kern_ipc_perm *shp, 1458 char __user *shmaddr, int shmflg) 1459 { 1460 return 0; 1461 } 1462 1463 static inline int security_sem_alloc(struct kern_ipc_perm *sma) 1464 { 1465 return 0; 1466 } 1467 1468 static inline void security_sem_free(struct kern_ipc_perm *sma) 1469 { } 1470 1471 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) 1472 { 1473 return 0; 1474 } 1475 1476 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) 1477 { 1478 return 0; 1479 } 1480 1481 static inline int security_sem_semop(struct kern_ipc_perm *sma, 1482 struct sembuf *sops, unsigned nsops, 1483 int alter) 1484 { 1485 return 0; 1486 } 1487 1488 static inline void security_d_instantiate(struct dentry *dentry, 1489 struct inode *inode) 1490 { } 1491 1492 static inline int security_getselfattr(unsigned int attr, 1493 struct lsm_ctx __user *ctx, 1494 size_t __user *size, u32 flags) 1495 { 1496 return -EOPNOTSUPP; 1497 } 1498 1499 static inline int security_setselfattr(unsigned int attr, 1500 struct lsm_ctx __user *ctx, 1501 size_t size, u32 flags) 1502 { 1503 return -EOPNOTSUPP; 1504 } 1505 1506 static inline int security_getprocattr(struct task_struct *p, int lsmid, 1507 const char *name, char **value) 1508 { 1509 return -EINVAL; 1510 } 1511 1512 static inline int security_setprocattr(int lsmid, char *name, void *value, 1513 size_t size) 1514 { 1515 return -EINVAL; 1516 } 1517 1518 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1519 { 1520 return 0; 1521 } 1522 1523 static inline int security_ismaclabel(const char *name) 1524 { 1525 return 0; 1526 } 1527 1528 static inline int security_secid_to_secctx(u32 secid, char **secdata, 1529 u32 *seclen) 1530 { 1531 return -EOPNOTSUPP; 1532 } 1533 1534 static inline int security_lsmprop_to_secctx(struct lsm_prop *prop, 1535 char **secdata, u32 *seclen) 1536 { 1537 return -EOPNOTSUPP; 1538 } 1539 1540 static inline int security_secctx_to_secid(const char *secdata, 1541 u32 seclen, 1542 u32 *secid) 1543 { 1544 return -EOPNOTSUPP; 1545 } 1546 1547 static inline void security_release_secctx(char *secdata, u32 seclen) 1548 { 1549 } 1550 1551 static inline void security_inode_invalidate_secctx(struct inode *inode) 1552 { 1553 } 1554 1555 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1556 { 1557 return -EOPNOTSUPP; 1558 } 1559 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1560 { 1561 return -EOPNOTSUPP; 1562 } 1563 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1564 { 1565 return -EOPNOTSUPP; 1566 } 1567 static inline int security_locked_down(enum lockdown_reason what) 1568 { 1569 return 0; 1570 } 1571 static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, 1572 u32 *uctx_len, void *val, size_t val_len, 1573 u64 id, u64 flags) 1574 { 1575 return -EOPNOTSUPP; 1576 } 1577 1578 static inline int security_bdev_alloc(struct block_device *bdev) 1579 { 1580 return 0; 1581 } 1582 1583 static inline void security_bdev_free(struct block_device *bdev) 1584 { 1585 } 1586 1587 static inline int security_bdev_setintegrity(struct block_device *bdev, 1588 enum lsm_integrity_type type, 1589 const void *value, size_t size) 1590 { 1591 return 0; 1592 } 1593 1594 #endif /* CONFIG_SECURITY */ 1595 1596 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE) 1597 int security_post_notification(const struct cred *w_cred, 1598 const struct cred *cred, 1599 struct watch_notification *n); 1600 #else 1601 static inline int security_post_notification(const struct cred *w_cred, 1602 const struct cred *cred, 1603 struct watch_notification *n) 1604 { 1605 return 0; 1606 } 1607 #endif 1608 1609 #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS) 1610 int security_watch_key(struct key *key); 1611 #else 1612 static inline int security_watch_key(struct key *key) 1613 { 1614 return 0; 1615 } 1616 #endif 1617 1618 #ifdef CONFIG_SECURITY_NETWORK 1619 1620 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1621 int security_unix_may_send(struct socket *sock, struct socket *other); 1622 int security_socket_create(int family, int type, int protocol, int kern); 1623 int security_socket_post_create(struct socket *sock, int family, 1624 int type, int protocol, int kern); 1625 int security_socket_socketpair(struct socket *socka, struct socket *sockb); 1626 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1627 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1628 int security_socket_listen(struct socket *sock, int backlog); 1629 int security_socket_accept(struct socket *sock, struct socket *newsock); 1630 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1631 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1632 int size, int flags); 1633 int security_socket_getsockname(struct socket *sock); 1634 int security_socket_getpeername(struct socket *sock); 1635 int security_socket_getsockopt(struct socket *sock, int level, int optname); 1636 int security_socket_setsockopt(struct socket *sock, int level, int optname); 1637 int security_socket_shutdown(struct socket *sock, int how); 1638 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1639 int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, 1640 sockptr_t optlen, unsigned int len); 1641 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1642 int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1643 void security_sk_free(struct sock *sk); 1644 void security_sk_clone(const struct sock *sk, struct sock *newsk); 1645 void security_sk_classify_flow(const struct sock *sk, 1646 struct flowi_common *flic); 1647 void security_req_classify_flow(const struct request_sock *req, 1648 struct flowi_common *flic); 1649 void security_sock_graft(struct sock*sk, struct socket *parent); 1650 int security_inet_conn_request(const struct sock *sk, 1651 struct sk_buff *skb, struct request_sock *req); 1652 void security_inet_csk_clone(struct sock *newsk, 1653 const struct request_sock *req); 1654 void security_inet_conn_established(struct sock *sk, 1655 struct sk_buff *skb); 1656 int security_secmark_relabel_packet(u32 secid); 1657 void security_secmark_refcount_inc(void); 1658 void security_secmark_refcount_dec(void); 1659 int security_tun_dev_alloc_security(void **security); 1660 void security_tun_dev_free_security(void *security); 1661 int security_tun_dev_create(void); 1662 int security_tun_dev_attach_queue(void *security); 1663 int security_tun_dev_attach(struct sock *sk, void *security); 1664 int security_tun_dev_open(void *security); 1665 int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb); 1666 int security_sctp_bind_connect(struct sock *sk, int optname, 1667 struct sockaddr *address, int addrlen); 1668 void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, 1669 struct sock *newsk); 1670 int security_sctp_assoc_established(struct sctp_association *asoc, 1671 struct sk_buff *skb); 1672 int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk); 1673 1674 #else /* CONFIG_SECURITY_NETWORK */ 1675 static inline int security_unix_stream_connect(struct sock *sock, 1676 struct sock *other, 1677 struct sock *newsk) 1678 { 1679 return 0; 1680 } 1681 1682 static inline int security_unix_may_send(struct socket *sock, 1683 struct socket *other) 1684 { 1685 return 0; 1686 } 1687 1688 static inline int security_socket_create(int family, int type, 1689 int protocol, int kern) 1690 { 1691 return 0; 1692 } 1693 1694 static inline int security_socket_post_create(struct socket *sock, 1695 int family, 1696 int type, 1697 int protocol, int kern) 1698 { 1699 return 0; 1700 } 1701 1702 static inline int security_socket_socketpair(struct socket *socka, 1703 struct socket *sockb) 1704 { 1705 return 0; 1706 } 1707 1708 static inline int security_socket_bind(struct socket *sock, 1709 struct sockaddr *address, 1710 int addrlen) 1711 { 1712 return 0; 1713 } 1714 1715 static inline int security_socket_connect(struct socket *sock, 1716 struct sockaddr *address, 1717 int addrlen) 1718 { 1719 return 0; 1720 } 1721 1722 static inline int security_socket_listen(struct socket *sock, int backlog) 1723 { 1724 return 0; 1725 } 1726 1727 static inline int security_socket_accept(struct socket *sock, 1728 struct socket *newsock) 1729 { 1730 return 0; 1731 } 1732 1733 static inline int security_socket_sendmsg(struct socket *sock, 1734 struct msghdr *msg, int size) 1735 { 1736 return 0; 1737 } 1738 1739 static inline int security_socket_recvmsg(struct socket *sock, 1740 struct msghdr *msg, int size, 1741 int flags) 1742 { 1743 return 0; 1744 } 1745 1746 static inline int security_socket_getsockname(struct socket *sock) 1747 { 1748 return 0; 1749 } 1750 1751 static inline int security_socket_getpeername(struct socket *sock) 1752 { 1753 return 0; 1754 } 1755 1756 static inline int security_socket_getsockopt(struct socket *sock, 1757 int level, int optname) 1758 { 1759 return 0; 1760 } 1761 1762 static inline int security_socket_setsockopt(struct socket *sock, 1763 int level, int optname) 1764 { 1765 return 0; 1766 } 1767 1768 static inline int security_socket_shutdown(struct socket *sock, int how) 1769 { 1770 return 0; 1771 } 1772 static inline int security_sock_rcv_skb(struct sock *sk, 1773 struct sk_buff *skb) 1774 { 1775 return 0; 1776 } 1777 1778 static inline int security_socket_getpeersec_stream(struct socket *sock, 1779 sockptr_t optval, 1780 sockptr_t optlen, 1781 unsigned int len) 1782 { 1783 return -ENOPROTOOPT; 1784 } 1785 1786 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1787 { 1788 return -ENOPROTOOPT; 1789 } 1790 1791 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1792 { 1793 return 0; 1794 } 1795 1796 static inline void security_sk_free(struct sock *sk) 1797 { 1798 } 1799 1800 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1801 { 1802 } 1803 1804 static inline void security_sk_classify_flow(const struct sock *sk, 1805 struct flowi_common *flic) 1806 { 1807 } 1808 1809 static inline void security_req_classify_flow(const struct request_sock *req, 1810 struct flowi_common *flic) 1811 { 1812 } 1813 1814 static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1815 { 1816 } 1817 1818 static inline int security_inet_conn_request(const struct sock *sk, 1819 struct sk_buff *skb, struct request_sock *req) 1820 { 1821 return 0; 1822 } 1823 1824 static inline void security_inet_csk_clone(struct sock *newsk, 1825 const struct request_sock *req) 1826 { 1827 } 1828 1829 static inline void security_inet_conn_established(struct sock *sk, 1830 struct sk_buff *skb) 1831 { 1832 } 1833 1834 static inline int security_secmark_relabel_packet(u32 secid) 1835 { 1836 return 0; 1837 } 1838 1839 static inline void security_secmark_refcount_inc(void) 1840 { 1841 } 1842 1843 static inline void security_secmark_refcount_dec(void) 1844 { 1845 } 1846 1847 static inline int security_tun_dev_alloc_security(void **security) 1848 { 1849 return 0; 1850 } 1851 1852 static inline void security_tun_dev_free_security(void *security) 1853 { 1854 } 1855 1856 static inline int security_tun_dev_create(void) 1857 { 1858 return 0; 1859 } 1860 1861 static inline int security_tun_dev_attach_queue(void *security) 1862 { 1863 return 0; 1864 } 1865 1866 static inline int security_tun_dev_attach(struct sock *sk, void *security) 1867 { 1868 return 0; 1869 } 1870 1871 static inline int security_tun_dev_open(void *security) 1872 { 1873 return 0; 1874 } 1875 1876 static inline int security_sctp_assoc_request(struct sctp_association *asoc, 1877 struct sk_buff *skb) 1878 { 1879 return 0; 1880 } 1881 1882 static inline int security_sctp_bind_connect(struct sock *sk, int optname, 1883 struct sockaddr *address, 1884 int addrlen) 1885 { 1886 return 0; 1887 } 1888 1889 static inline void security_sctp_sk_clone(struct sctp_association *asoc, 1890 struct sock *sk, 1891 struct sock *newsk) 1892 { 1893 } 1894 1895 static inline int security_sctp_assoc_established(struct sctp_association *asoc, 1896 struct sk_buff *skb) 1897 { 1898 return 0; 1899 } 1900 1901 static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk) 1902 { 1903 return 0; 1904 } 1905 #endif /* CONFIG_SECURITY_NETWORK */ 1906 1907 #ifdef CONFIG_SECURITY_INFINIBAND 1908 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1909 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1910 int security_ib_alloc_security(void **sec); 1911 void security_ib_free_security(void *sec); 1912 #else /* CONFIG_SECURITY_INFINIBAND */ 1913 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1914 { 1915 return 0; 1916 } 1917 1918 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1919 { 1920 return 0; 1921 } 1922 1923 static inline int security_ib_alloc_security(void **sec) 1924 { 1925 return 0; 1926 } 1927 1928 static inline void security_ib_free_security(void *sec) 1929 { 1930 } 1931 #endif /* CONFIG_SECURITY_INFINIBAND */ 1932 1933 #ifdef CONFIG_SECURITY_NETWORK_XFRM 1934 1935 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1936 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1937 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1938 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1939 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1940 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1941 int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1942 struct xfrm_sec_ctx *polsec, u32 secid); 1943 int security_xfrm_state_delete(struct xfrm_state *x); 1944 void security_xfrm_state_free(struct xfrm_state *x); 1945 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid); 1946 int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1947 struct xfrm_policy *xp, 1948 const struct flowi_common *flic); 1949 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1950 void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic); 1951 1952 #else /* CONFIG_SECURITY_NETWORK_XFRM */ 1953 1954 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1955 struct xfrm_user_sec_ctx *sec_ctx, 1956 gfp_t gfp) 1957 { 1958 return 0; 1959 } 1960 1961 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1962 { 1963 return 0; 1964 } 1965 1966 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1967 { 1968 } 1969 1970 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1971 { 1972 return 0; 1973 } 1974 1975 static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1976 struct xfrm_user_sec_ctx *sec_ctx) 1977 { 1978 return 0; 1979 } 1980 1981 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1982 struct xfrm_sec_ctx *polsec, u32 secid) 1983 { 1984 return 0; 1985 } 1986 1987 static inline void security_xfrm_state_free(struct xfrm_state *x) 1988 { 1989 } 1990 1991 static inline int security_xfrm_state_delete(struct xfrm_state *x) 1992 { 1993 return 0; 1994 } 1995 1996 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid) 1997 { 1998 return 0; 1999 } 2000 2001 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 2002 struct xfrm_policy *xp, 2003 const struct flowi_common *flic) 2004 { 2005 return 1; 2006 } 2007 2008 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 2009 { 2010 return 0; 2011 } 2012 2013 static inline void security_skb_classify_flow(struct sk_buff *skb, 2014 struct flowi_common *flic) 2015 { 2016 } 2017 2018 #endif /* CONFIG_SECURITY_NETWORK_XFRM */ 2019 2020 #ifdef CONFIG_SECURITY_PATH 2021 int security_path_unlink(const struct path *dir, struct dentry *dentry); 2022 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 2023 int security_path_rmdir(const struct path *dir, struct dentry *dentry); 2024 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 2025 unsigned int dev); 2026 void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry); 2027 int security_path_truncate(const struct path *path); 2028 int security_path_symlink(const struct path *dir, struct dentry *dentry, 2029 const char *old_name); 2030 int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 2031 struct dentry *new_dentry); 2032 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, 2033 const struct path *new_dir, struct dentry *new_dentry, 2034 unsigned int flags); 2035 int security_path_chmod(const struct path *path, umode_t mode); 2036 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 2037 int security_path_chroot(const struct path *path); 2038 #else /* CONFIG_SECURITY_PATH */ 2039 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 2040 { 2041 return 0; 2042 } 2043 2044 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 2045 umode_t mode) 2046 { 2047 return 0; 2048 } 2049 2050 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 2051 { 2052 return 0; 2053 } 2054 2055 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, 2056 umode_t mode, unsigned int dev) 2057 { 2058 return 0; 2059 } 2060 2061 static inline void security_path_post_mknod(struct mnt_idmap *idmap, 2062 struct dentry *dentry) 2063 { } 2064 2065 static inline int security_path_truncate(const struct path *path) 2066 { 2067 return 0; 2068 } 2069 2070 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 2071 const char *old_name) 2072 { 2073 return 0; 2074 } 2075 2076 static inline int security_path_link(struct dentry *old_dentry, 2077 const struct path *new_dir, 2078 struct dentry *new_dentry) 2079 { 2080 return 0; 2081 } 2082 2083 static inline int security_path_rename(const struct path *old_dir, 2084 struct dentry *old_dentry, 2085 const struct path *new_dir, 2086 struct dentry *new_dentry, 2087 unsigned int flags) 2088 { 2089 return 0; 2090 } 2091 2092 static inline int security_path_chmod(const struct path *path, umode_t mode) 2093 { 2094 return 0; 2095 } 2096 2097 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 2098 { 2099 return 0; 2100 } 2101 2102 static inline int security_path_chroot(const struct path *path) 2103 { 2104 return 0; 2105 } 2106 #endif /* CONFIG_SECURITY_PATH */ 2107 2108 #ifdef CONFIG_KEYS 2109 #ifdef CONFIG_SECURITY 2110 2111 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 2112 void security_key_free(struct key *key); 2113 int security_key_permission(key_ref_t key_ref, const struct cred *cred, 2114 enum key_need_perm need_perm); 2115 int security_key_getsecurity(struct key *key, char **_buffer); 2116 void security_key_post_create_or_update(struct key *keyring, struct key *key, 2117 const void *payload, size_t payload_len, 2118 unsigned long flags, bool create); 2119 2120 #else 2121 2122 static inline int security_key_alloc(struct key *key, 2123 const struct cred *cred, 2124 unsigned long flags) 2125 { 2126 return 0; 2127 } 2128 2129 static inline void security_key_free(struct key *key) 2130 { 2131 } 2132 2133 static inline int security_key_permission(key_ref_t key_ref, 2134 const struct cred *cred, 2135 enum key_need_perm need_perm) 2136 { 2137 return 0; 2138 } 2139 2140 static inline int security_key_getsecurity(struct key *key, char **_buffer) 2141 { 2142 *_buffer = NULL; 2143 return 0; 2144 } 2145 2146 static inline void security_key_post_create_or_update(struct key *keyring, 2147 struct key *key, 2148 const void *payload, 2149 size_t payload_len, 2150 unsigned long flags, 2151 bool create) 2152 { } 2153 2154 #endif 2155 #endif /* CONFIG_KEYS */ 2156 2157 #ifdef CONFIG_AUDIT 2158 #ifdef CONFIG_SECURITY 2159 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule, 2160 gfp_t gfp); 2161 int security_audit_rule_known(struct audit_krule *krule); 2162 int security_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op, 2163 void *lsmrule); 2164 void security_audit_rule_free(void *lsmrule); 2165 2166 #else 2167 2168 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 2169 void **lsmrule, gfp_t gfp) 2170 { 2171 return 0; 2172 } 2173 2174 static inline int security_audit_rule_known(struct audit_krule *krule) 2175 { 2176 return 0; 2177 } 2178 2179 static inline int security_audit_rule_match(struct lsm_prop *prop, u32 field, 2180 u32 op, void *lsmrule) 2181 { 2182 return 0; 2183 } 2184 2185 static inline void security_audit_rule_free(void *lsmrule) 2186 { } 2187 2188 #endif /* CONFIG_SECURITY */ 2189 #endif /* CONFIG_AUDIT */ 2190 2191 #ifdef CONFIG_SECURITYFS 2192 2193 extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 2194 struct dentry *parent, void *data, 2195 const struct file_operations *fops); 2196 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 2197 struct dentry *securityfs_create_symlink(const char *name, 2198 struct dentry *parent, 2199 const char *target, 2200 const struct inode_operations *iops); 2201 extern void securityfs_remove(struct dentry *dentry); 2202 extern void securityfs_recursive_remove(struct dentry *dentry); 2203 2204 #else /* CONFIG_SECURITYFS */ 2205 2206 static inline struct dentry *securityfs_create_dir(const char *name, 2207 struct dentry *parent) 2208 { 2209 return ERR_PTR(-ENODEV); 2210 } 2211 2212 static inline struct dentry *securityfs_create_file(const char *name, 2213 umode_t mode, 2214 struct dentry *parent, 2215 void *data, 2216 const struct file_operations *fops) 2217 { 2218 return ERR_PTR(-ENODEV); 2219 } 2220 2221 static inline struct dentry *securityfs_create_symlink(const char *name, 2222 struct dentry *parent, 2223 const char *target, 2224 const struct inode_operations *iops) 2225 { 2226 return ERR_PTR(-ENODEV); 2227 } 2228 2229 static inline void securityfs_remove(struct dentry *dentry) 2230 {} 2231 2232 #endif 2233 2234 #ifdef CONFIG_BPF_SYSCALL 2235 union bpf_attr; 2236 struct bpf_map; 2237 struct bpf_prog; 2238 struct bpf_token; 2239 #ifdef CONFIG_SECURITY 2240 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size); 2241 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode); 2242 extern int security_bpf_prog(struct bpf_prog *prog); 2243 extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2244 struct bpf_token *token); 2245 extern void security_bpf_map_free(struct bpf_map *map); 2246 extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2247 struct bpf_token *token); 2248 extern void security_bpf_prog_free(struct bpf_prog *prog); 2249 extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2250 const struct path *path); 2251 extern void security_bpf_token_free(struct bpf_token *token); 2252 extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd); 2253 extern int security_bpf_token_capable(const struct bpf_token *token, int cap); 2254 #else 2255 static inline int security_bpf(int cmd, union bpf_attr *attr, 2256 unsigned int size) 2257 { 2258 return 0; 2259 } 2260 2261 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode) 2262 { 2263 return 0; 2264 } 2265 2266 static inline int security_bpf_prog(struct bpf_prog *prog) 2267 { 2268 return 0; 2269 } 2270 2271 static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2272 struct bpf_token *token) 2273 { 2274 return 0; 2275 } 2276 2277 static inline void security_bpf_map_free(struct bpf_map *map) 2278 { } 2279 2280 static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2281 struct bpf_token *token) 2282 { 2283 return 0; 2284 } 2285 2286 static inline void security_bpf_prog_free(struct bpf_prog *prog) 2287 { } 2288 2289 static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2290 const struct path *path) 2291 { 2292 return 0; 2293 } 2294 2295 static inline void security_bpf_token_free(struct bpf_token *token) 2296 { } 2297 2298 static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd) 2299 { 2300 return 0; 2301 } 2302 2303 static inline int security_bpf_token_capable(const struct bpf_token *token, int cap) 2304 { 2305 return 0; 2306 } 2307 #endif /* CONFIG_SECURITY */ 2308 #endif /* CONFIG_BPF_SYSCALL */ 2309 2310 #ifdef CONFIG_PERF_EVENTS 2311 struct perf_event_attr; 2312 struct perf_event; 2313 2314 #ifdef CONFIG_SECURITY 2315 extern int security_perf_event_open(struct perf_event_attr *attr, int type); 2316 extern int security_perf_event_alloc(struct perf_event *event); 2317 extern void security_perf_event_free(struct perf_event *event); 2318 extern int security_perf_event_read(struct perf_event *event); 2319 extern int security_perf_event_write(struct perf_event *event); 2320 #else 2321 static inline int security_perf_event_open(struct perf_event_attr *attr, 2322 int type) 2323 { 2324 return 0; 2325 } 2326 2327 static inline int security_perf_event_alloc(struct perf_event *event) 2328 { 2329 return 0; 2330 } 2331 2332 static inline void security_perf_event_free(struct perf_event *event) 2333 { 2334 } 2335 2336 static inline int security_perf_event_read(struct perf_event *event) 2337 { 2338 return 0; 2339 } 2340 2341 static inline int security_perf_event_write(struct perf_event *event) 2342 { 2343 return 0; 2344 } 2345 #endif /* CONFIG_SECURITY */ 2346 #endif /* CONFIG_PERF_EVENTS */ 2347 2348 #ifdef CONFIG_IO_URING 2349 #ifdef CONFIG_SECURITY 2350 extern int security_uring_override_creds(const struct cred *new); 2351 extern int security_uring_sqpoll(void); 2352 extern int security_uring_cmd(struct io_uring_cmd *ioucmd); 2353 #else 2354 static inline int security_uring_override_creds(const struct cred *new) 2355 { 2356 return 0; 2357 } 2358 static inline int security_uring_sqpoll(void) 2359 { 2360 return 0; 2361 } 2362 static inline int security_uring_cmd(struct io_uring_cmd *ioucmd) 2363 { 2364 return 0; 2365 } 2366 #endif /* CONFIG_SECURITY */ 2367 #endif /* CONFIG_IO_URING */ 2368 2369 #ifdef CONFIG_SECURITY 2370 extern void security_initramfs_populated(void); 2371 #else 2372 static inline void security_initramfs_populated(void) 2373 { 2374 } 2375 #endif /* CONFIG_SECURITY */ 2376 2377 #endif /* ! __LINUX_SECURITY_H */ 2378