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