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