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