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