1/* 2 * Linux Security plug 3 * 4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> 5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com> 6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> 7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au> 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 38struct linux_binprm; 39struct cred; 40struct rlimit; 41struct kernel_siginfo; 42struct sembuf; 43struct kern_ipc_perm; 44struct audit_context; 45struct super_block; 46struct inode; 47struct dentry; 48struct file; 49struct vfsmount; 50struct path; 51struct qstr; 52struct iattr; 53struct fown_struct; 54struct file_operations; 55struct msg_msg; 56struct xattr; 57struct kernfs_node; 58struct xfrm_sec_ctx; 59struct mm_struct; 60struct fs_context; 61struct fs_parameter; 62enum fs_value_type; 63struct watch; 64struct watch_notification; 65struct 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 77struct ctl_table; 78struct audit_krule; 79struct user_namespace; 80struct timezone; 81 82enum 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 */ 110enum 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 143extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1]; 144extern u32 lsm_active_cnt; 145extern const struct lsm_id *lsm_idlist[]; 146 147/* These functions are in security/commoncap.c */ 148extern int cap_capable(const struct cred *cred, struct user_namespace *ns, 149 int cap, unsigned int opts); 150extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz); 151extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); 152extern int cap_ptrace_traceme(struct task_struct *parent); 153extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective, 154 kernel_cap_t *inheritable, kernel_cap_t *permitted); 155extern 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); 159extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 160int cap_inode_setxattr(struct dentry *dentry, const char *name, 161 const void *value, size_t size, int flags); 162int cap_inode_removexattr(struct mnt_idmap *idmap, 163 struct dentry *dentry, const char *name); 164int cap_inode_need_killpriv(struct dentry *dentry); 165int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 166int cap_inode_getsecurity(struct mnt_idmap *idmap, 167 struct inode *inode, const char *name, void **buffer, 168 bool alloc); 169extern int cap_mmap_addr(unsigned long addr); 170extern int cap_mmap_file(struct file *file, unsigned long reqprot, 171 unsigned long prot, unsigned long flags); 172extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); 173extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, 174 unsigned long arg4, unsigned long arg5); 175extern int cap_task_setscheduler(struct task_struct *p); 176extern int cap_task_setioprio(struct task_struct *p, int ioprio); 177extern int cap_task_setnice(struct task_struct *p, int nice); 178extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); 179 180struct msghdr; 181struct sk_buff; 182struct sock; 183struct sockaddr; 184struct socket; 185struct flowi_common; 186struct dst_entry; 187struct xfrm_selector; 188struct xfrm_policy; 189struct xfrm_state; 190struct xfrm_user_sec_ctx; 191struct seq_file; 192struct sctp_association; 193 194#ifdef CONFIG_MMU 195extern unsigned long mmap_min_addr; 196extern 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 */ 222struct sched_param; 223struct 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 231extern 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 */ 236typedef 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 244enum kernel_load_data_id { 245 __kernel_read_file_id(__data_id_enumify) 246}; 247 248static const char * const kernel_load_data_str[] = { 249 __kernel_read_file_id(__data_id_stringify) 250}; 251 252static 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 262int call_blocking_lsm_notifier(enum lsm_event event, void *data); 263int register_blocking_lsm_notifier(struct notifier_block *nb); 264int unregister_blocking_lsm_notifier(struct notifier_block *nb); 265 266/* prototypes */ 267extern int security_init(void); 268extern int early_security_init(void); 269extern u64 lsm_name_to_attr(const char *name); 270 271/* Security operations */ 272int security_binder_set_context_mgr(const struct cred *mgr); 273int security_binder_transaction(const struct cred *from, 274 const struct cred *to); 275int security_binder_transfer_binder(const struct cred *from, 276 const struct cred *to); 277int security_binder_transfer_file(const struct cred *from, 278 const struct cred *to, const struct file *file); 279int security_ptrace_access_check(struct task_struct *child, unsigned int mode); 280int security_ptrace_traceme(struct task_struct *parent); 281int security_capget(const struct task_struct *target, 282 kernel_cap_t *effective, 283 kernel_cap_t *inheritable, 284 kernel_cap_t *permitted); 285int 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); 289int security_capable(const struct cred *cred, 290 struct user_namespace *ns, 291 int cap, 292 unsigned int opts); 293int security_quotactl(int cmds, int type, int id, const struct super_block *sb); 294int security_quota_on(struct dentry *dentry); 295int security_syslog(int type); 296int security_settime64(const struct timespec64 *ts, const struct timezone *tz); 297int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); 298int security_bprm_creds_for_exec(struct linux_binprm *bprm); 299int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file); 300int security_bprm_check(struct linux_binprm *bprm); 301void security_bprm_committing_creds(const struct linux_binprm *bprm); 302void security_bprm_committed_creds(const struct linux_binprm *bprm); 303int security_fs_context_submount(struct fs_context *fc, struct super_block *reference); 304int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc); 305int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param); 306int security_sb_alloc(struct super_block *sb); 307void security_sb_delete(struct super_block *sb); 308void security_sb_free(struct super_block *sb); 309void security_free_mnt_opts(void **mnt_opts); 310int security_sb_eat_lsm_opts(char *options, void **mnt_opts); 311int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts); 312int security_sb_remount(struct super_block *sb, void *mnt_opts); 313int security_sb_kern_mount(const struct super_block *sb); 314int security_sb_show_options(struct seq_file *m, struct super_block *sb); 315int security_sb_statfs(struct dentry *dentry); 316int security_sb_mount(const char *dev_name, const struct path *path, 317 const char *type, unsigned long flags, void *data); 318int security_sb_umount(struct vfsmount *mnt, int flags); 319int security_sb_pivotroot(const struct path *old_path, const struct path *new_path); 320int security_sb_set_mnt_opts(struct super_block *sb, 321 void *mnt_opts, 322 unsigned long kern_flags, 323 unsigned long *set_kern_flags); 324int 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); 328int security_move_mount(const struct path *from_path, const struct path *to_path); 329int security_dentry_init_security(struct dentry *dentry, int mode, 330 const struct qstr *name, 331 const char **xattr_name, void **ctx, 332 u32 *ctxlen); 333int security_dentry_create_files_as(struct dentry *dentry, int mode, 334 struct qstr *name, 335 const struct cred *old, 336 struct cred *new); 337int security_path_notify(const struct path *path, u64 mask, 338 unsigned int obj_type); 339int security_inode_alloc(struct inode *inode); 340void security_inode_free(struct inode *inode); 341int security_inode_init_security(struct inode *inode, struct inode *dir, 342 const struct qstr *qstr, 343 initxattrs initxattrs, void *fs_data); 344int security_inode_init_security_anon(struct inode *inode, 345 const struct qstr *name, 346 const struct inode *context_inode); 347int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode); 348void security_inode_post_create_tmpfile(struct mnt_idmap *idmap, 349 struct inode *inode); 350int security_inode_link(struct dentry *old_dentry, struct inode *dir, 351 struct dentry *new_dentry); 352int security_inode_unlink(struct inode *dir, struct dentry *dentry); 353int security_inode_symlink(struct inode *dir, struct dentry *dentry, 354 const char *old_name); 355int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode); 356int security_inode_rmdir(struct inode *dir, struct dentry *dentry); 357int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev); 358int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 359 struct inode *new_dir, struct dentry *new_dentry, 360 unsigned int flags); 361int security_inode_readlink(struct dentry *dentry); 362int security_inode_follow_link(struct dentry *dentry, struct inode *inode, 363 bool rcu); 364int security_inode_permission(struct inode *inode, int mask); 365int security_inode_setattr(struct mnt_idmap *idmap, 366 struct dentry *dentry, struct iattr *attr); 367void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 368 int ia_valid); 369int security_inode_getattr(const struct path *path); 370int security_inode_setxattr(struct mnt_idmap *idmap, 371 struct dentry *dentry, const char *name, 372 const void *value, size_t size, int flags); 373int security_inode_set_acl(struct mnt_idmap *idmap, 374 struct dentry *dentry, const char *acl_name, 375 struct posix_acl *kacl); 376void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name, 377 struct posix_acl *kacl); 378int security_inode_get_acl(struct mnt_idmap *idmap, 379 struct dentry *dentry, const char *acl_name); 380int security_inode_remove_acl(struct mnt_idmap *idmap, 381 struct dentry *dentry, const char *acl_name); 382void security_inode_post_remove_acl(struct mnt_idmap *idmap, 383 struct dentry *dentry, 384 const char *acl_name); 385void security_inode_post_setxattr(struct dentry *dentry, const char *name, 386 const void *value, size_t size, int flags); 387int security_inode_getxattr(struct dentry *dentry, const char *name); 388int security_inode_listxattr(struct dentry *dentry); 389int security_inode_removexattr(struct mnt_idmap *idmap, 390 struct dentry *dentry, const char *name); 391void security_inode_post_removexattr(struct dentry *dentry, const char *name); 392int security_inode_need_killpriv(struct dentry *dentry); 393int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry); 394int security_inode_getsecurity(struct mnt_idmap *idmap, 395 struct inode *inode, const char *name, 396 void **buffer, bool alloc); 397int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); 398int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); 399void security_inode_getsecid(struct inode *inode, u32 *secid); 400int security_inode_copy_up(struct dentry *src, struct cred **new); 401int security_inode_copy_up_xattr(const char *name); 402int security_kernfs_init_security(struct kernfs_node *kn_dir, 403 struct kernfs_node *kn); 404int security_file_permission(struct file *file, int mask); 405int security_file_alloc(struct file *file); 406void security_file_release(struct file *file); 407void security_file_free(struct file *file); 408int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 409int security_file_ioctl_compat(struct file *file, unsigned int cmd, 410 unsigned long arg); 411int security_mmap_file(struct file *file, unsigned long prot, 412 unsigned long flags); 413int security_mmap_addr(unsigned long addr); 414int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 415 unsigned long prot); 416int security_file_lock(struct file *file, unsigned int cmd); 417int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); 418void security_file_set_fowner(struct file *file); 419int security_file_send_sigiotask(struct task_struct *tsk, 420 struct fown_struct *fown, int sig); 421int security_file_receive(struct file *file); 422int security_file_open(struct file *file); 423int security_file_post_open(struct file *file, int mask); 424int security_file_truncate(struct file *file); 425int security_task_alloc(struct task_struct *task, unsigned long clone_flags); 426void security_task_free(struct task_struct *task); 427int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); 428void security_cred_free(struct cred *cred); 429int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); 430void security_transfer_creds(struct cred *new, const struct cred *old); 431void security_cred_getsecid(const struct cred *c, u32 *secid); 432int security_kernel_act_as(struct cred *new, u32 secid); 433int security_kernel_create_files_as(struct cred *new, struct inode *inode); 434int security_kernel_module_request(char *kmod_name); 435int security_kernel_load_data(enum kernel_load_data_id id, bool contents); 436int security_kernel_post_load_data(char *buf, loff_t size, 437 enum kernel_load_data_id id, 438 char *description); 439int security_kernel_read_file(struct file *file, enum kernel_read_file_id id, 440 bool contents); 441int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 442 enum kernel_read_file_id id); 443int security_task_fix_setuid(struct cred *new, const struct cred *old, 444 int flags); 445int security_task_fix_setgid(struct cred *new, const struct cred *old, 446 int flags); 447int security_task_fix_setgroups(struct cred *new, const struct cred *old); 448int security_task_setpgid(struct task_struct *p, pid_t pgid); 449int security_task_getpgid(struct task_struct *p); 450int security_task_getsid(struct task_struct *p); 451void security_current_getsecid_subj(u32 *secid); 452void security_task_getsecid_obj(struct task_struct *p, u32 *secid); 453int security_task_setnice(struct task_struct *p, int nice); 454int security_task_setioprio(struct task_struct *p, int ioprio); 455int security_task_getioprio(struct task_struct *p); 456int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 457 unsigned int flags); 458int security_task_setrlimit(struct task_struct *p, unsigned int resource, 459 struct rlimit *new_rlim); 460int security_task_setscheduler(struct task_struct *p); 461int security_task_getscheduler(struct task_struct *p); 462int security_task_movememory(struct task_struct *p); 463int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, 464 int sig, const struct cred *cred); 465int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 466 unsigned long arg4, unsigned long arg5); 467void security_task_to_inode(struct task_struct *p, struct inode *inode); 468int security_create_user_ns(const struct cred *cred); 469int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 470void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); 471int security_msg_msg_alloc(struct msg_msg *msg); 472void security_msg_msg_free(struct msg_msg *msg); 473int security_msg_queue_alloc(struct kern_ipc_perm *msq); 474void security_msg_queue_free(struct kern_ipc_perm *msq); 475int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg); 476int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd); 477int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 478 struct msg_msg *msg, int msqflg); 479int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, 480 struct task_struct *target, long type, int mode); 481int security_shm_alloc(struct kern_ipc_perm *shp); 482void security_shm_free(struct kern_ipc_perm *shp); 483int security_shm_associate(struct kern_ipc_perm *shp, int shmflg); 484int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd); 485int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); 486int security_sem_alloc(struct kern_ipc_perm *sma); 487void security_sem_free(struct kern_ipc_perm *sma); 488int security_sem_associate(struct kern_ipc_perm *sma, int semflg); 489int security_sem_semctl(struct kern_ipc_perm *sma, int cmd); 490int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, 491 unsigned nsops, int alter); 492void security_d_instantiate(struct dentry *dentry, struct inode *inode); 493int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 494 u32 __user *size, u32 flags); 495int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx, 496 u32 size, u32 flags); 497int security_getprocattr(struct task_struct *p, int lsmid, const char *name, 498 char **value); 499int security_setprocattr(int lsmid, const char *name, void *value, size_t size); 500int security_netlink_send(struct sock *sk, struct sk_buff *skb); 501int security_ismaclabel(const char *name); 502int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 503int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 504void security_release_secctx(char *secdata, u32 seclen); 505void security_inode_invalidate_secctx(struct inode *inode); 506int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 507int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 508int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 509int security_locked_down(enum lockdown_reason what); 510int 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 514static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data) 515{ 516 return 0; 517} 518 519static inline int register_blocking_lsm_notifier(struct notifier_block *nb) 520{ 521 return 0; 522} 523 524static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb) 525{ 526 return 0; 527} 528 529static inline u64 lsm_name_to_attr(const char *name) 530{ 531 return LSM_ATTR_UNDEF; 532} 533 534static 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 543static inline int security_init(void) 544{ 545 return 0; 546} 547 548static inline int early_security_init(void) 549{ 550 return 0; 551} 552 553static inline int security_binder_set_context_mgr(const struct cred *mgr) 554{ 555 return 0; 556} 557 558static inline int security_binder_transaction(const struct cred *from, 559 const struct cred *to) 560{ 561 return 0; 562} 563 564static inline int security_binder_transfer_binder(const struct cred *from, 565 const struct cred *to) 566{ 567 return 0; 568} 569 570static 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 577static 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 583static inline int security_ptrace_traceme(struct task_struct *parent) 584{ 585 return cap_ptrace_traceme(parent); 586} 587 588static 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 596static 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 605static 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 613static inline int security_quotactl(int cmds, int type, int id, 614 const struct super_block *sb) 615{ 616 return 0; 617} 618 619static inline int security_quota_on(struct dentry *dentry) 620{ 621 return 0; 622} 623 624static inline int security_syslog(int type) 625{ 626 return 0; 627} 628 629static inline int security_settime64(const struct timespec64 *ts, 630 const struct timezone *tz) 631{ 632 return cap_settime(ts, tz); 633} 634 635static 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 640static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm) 641{ 642 return 0; 643} 644 645static 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 651static inline int security_bprm_check(struct linux_binprm *bprm) 652{ 653 return 0; 654} 655 656static inline void security_bprm_committing_creds(const struct linux_binprm *bprm) 657{ 658} 659 660static inline void security_bprm_committed_creds(const struct linux_binprm *bprm) 661{ 662} 663 664static inline int security_fs_context_submount(struct fs_context *fc, 665 struct super_block *reference) 666{ 667 return 0; 668} 669static inline int security_fs_context_dup(struct fs_context *fc, 670 struct fs_context *src_fc) 671{ 672 return 0; 673} 674static inline int security_fs_context_parse_param(struct fs_context *fc, 675 struct fs_parameter *param) 676{ 677 return -ENOPARAM; 678} 679 680static inline int security_sb_alloc(struct super_block *sb) 681{ 682 return 0; 683} 684 685static inline void security_sb_delete(struct super_block *sb) 686{ } 687 688static inline void security_sb_free(struct super_block *sb) 689{ } 690 691static inline int security_sb_eat_lsm_opts(char *options, 692 void **mnt_opts) 693{ 694 return 0; 695} 696 697static inline int security_sb_remount(struct super_block *sb, 698 void *mnt_opts) 699{ 700 return 0; 701} 702 703static inline int security_sb_mnt_opts_compat(struct super_block *sb, 704 void *mnt_opts) 705{ 706 return 0; 707} 708 709 710static inline int security_sb_kern_mount(struct super_block *sb) 711{ 712 return 0; 713} 714 715static inline int security_sb_show_options(struct seq_file *m, 716 struct super_block *sb) 717{ 718 return 0; 719} 720 721static inline int security_sb_statfs(struct dentry *dentry) 722{ 723 return 0; 724} 725 726static 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 733static inline int security_sb_umount(struct vfsmount *mnt, int flags) 734{ 735 return 0; 736} 737 738static inline int security_sb_pivotroot(const struct path *old_path, 739 const struct path *new_path) 740{ 741 return 0; 742} 743 744static 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 752static 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 760static inline int security_move_mount(const struct path *from_path, 761 const struct path *to_path) 762{ 763 return 0; 764} 765 766static inline int security_path_notify(const struct path *path, u64 mask, 767 unsigned int obj_type) 768{ 769 return 0; 770} 771 772static inline int security_inode_alloc(struct inode *inode) 773{ 774 return 0; 775} 776 777static inline void security_inode_free(struct inode *inode) 778{ } 779 780static 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 790static 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 799static 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 808static 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 815static inline int security_inode_create(struct inode *dir, 816 struct dentry *dentry, 817 umode_t mode) 818{ 819 return 0; 820} 821 822static inline void 823security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode) 824{ } 825 826static inline int security_inode_link(struct dentry *old_dentry, 827 struct inode *dir, 828 struct dentry *new_dentry) 829{ 830 return 0; 831} 832 833static inline int security_inode_unlink(struct inode *dir, 834 struct dentry *dentry) 835{ 836 return 0; 837} 838 839static inline int security_inode_symlink(struct inode *dir, 840 struct dentry *dentry, 841 const char *old_name) 842{ 843 return 0; 844} 845 846static inline int security_inode_mkdir(struct inode *dir, 847 struct dentry *dentry, 848 int mode) 849{ 850 return 0; 851} 852 853static inline int security_inode_rmdir(struct inode *dir, 854 struct dentry *dentry) 855{ 856 return 0; 857} 858 859static inline int security_inode_mknod(struct inode *dir, 860 struct dentry *dentry, 861 int mode, dev_t dev) 862{ 863 return 0; 864} 865 866static 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 875static inline int security_inode_readlink(struct dentry *dentry) 876{ 877 return 0; 878} 879 880static inline int security_inode_follow_link(struct dentry *dentry, 881 struct inode *inode, 882 bool rcu) 883{ 884 return 0; 885} 886 887static inline int security_inode_permission(struct inode *inode, int mask) 888{ 889 return 0; 890} 891 892static inline int security_inode_setattr(struct mnt_idmap *idmap, 893 struct dentry *dentry, 894 struct iattr *attr) 895{ 896 return 0; 897} 898 899static inline void 900security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 901 int ia_valid) 902{ } 903 904static inline int security_inode_getattr(const struct path *path) 905{ 906 return 0; 907} 908 909static 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 916static 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 924static inline void security_inode_post_set_acl(struct dentry *dentry, 925 const char *acl_name, 926 struct posix_acl *kacl) 927{ } 928 929static 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 936static 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 943static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap, 944 struct dentry *dentry, 945 const char *acl_name) 946{ } 947 948static inline void security_inode_post_setxattr(struct dentry *dentry, 949 const char *name, const void *value, size_t size, int flags) 950{ } 951 952static inline int security_inode_getxattr(struct dentry *dentry, 953 const char *name) 954{ 955 return 0; 956} 957 958static inline int security_inode_listxattr(struct dentry *dentry) 959{ 960 return 0; 961} 962 963static 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 970static inline void security_inode_post_removexattr(struct dentry *dentry, 971 const char *name) 972{ } 973 974static inline int security_inode_need_killpriv(struct dentry *dentry) 975{ 976 return cap_inode_need_killpriv(dentry); 977} 978 979static inline int security_inode_killpriv(struct mnt_idmap *idmap, 980 struct dentry *dentry) 981{ 982 return cap_inode_killpriv(idmap, dentry); 983} 984 985static 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 993static 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 998static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 999{ 1000 return 0; 1001} 1002 1003static inline void security_inode_getsecid(struct inode *inode, u32 *secid) 1004{ 1005 *secid = 0; 1006} 1007 1008static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 1009{ 1010 return 0; 1011} 1012 1013static inline int security_kernfs_init_security(struct kernfs_node *kn_dir, 1014 struct kernfs_node *kn) 1015{ 1016 return 0; 1017} 1018 1019static inline int security_inode_copy_up_xattr(const char *name) 1020{ 1021 return -EOPNOTSUPP; 1022} 1023 1024static inline int security_file_permission(struct file *file, int mask) 1025{ 1026 return 0; 1027} 1028 1029static inline int security_file_alloc(struct file *file) 1030{ 1031 return 0; 1032} 1033 1034static inline void security_file_release(struct file *file) 1035{ } 1036 1037static inline void security_file_free(struct file *file) 1038{ } 1039 1040static inline int security_file_ioctl(struct file *file, unsigned int cmd, 1041 unsigned long arg) 1042{ 1043 return 0; 1044} 1045 1046static inline int security_file_ioctl_compat(struct file *file, 1047 unsigned int cmd, 1048 unsigned long arg) 1049{ 1050 return 0; 1051} 1052 1053static inline int security_mmap_file(struct file *file, unsigned long prot, 1054 unsigned long flags) 1055{ 1056 return 0; 1057} 1058 1059static inline int security_mmap_addr(unsigned long addr) 1060{ 1061 return cap_mmap_addr(addr); 1062} 1063 1064static inline int security_file_mprotect(struct vm_area_struct *vma, 1065 unsigned long reqprot, 1066 unsigned long prot) 1067{ 1068 return 0; 1069} 1070 1071static inline int security_file_lock(struct file *file, unsigned int cmd) 1072{ 1073 return 0; 1074} 1075 1076static inline int security_file_fcntl(struct file *file, unsigned int cmd, 1077 unsigned long arg) 1078{ 1079 return 0; 1080} 1081 1082static inline void security_file_set_fowner(struct file *file) 1083{ 1084 return; 1085} 1086 1087static inline int security_file_send_sigiotask(struct task_struct *tsk, 1088 struct fown_struct *fown, 1089 int sig) 1090{ 1091 return 0; 1092} 1093 1094static inline int security_file_receive(struct file *file) 1095{ 1096 return 0; 1097} 1098 1099static inline int security_file_open(struct file *file) 1100{ 1101 return 0; 1102} 1103 1104static inline int security_file_post_open(struct file *file, int mask) 1105{ 1106 return 0; 1107} 1108 1109static inline int security_file_truncate(struct file *file) 1110{ 1111 return 0; 1112} 1113 1114static inline int security_task_alloc(struct task_struct *task, 1115 unsigned long clone_flags) 1116{ 1117 return 0; 1118} 1119 1120static inline void security_task_free(struct task_struct *task) 1121{ } 1122 1123static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 1124{ 1125 return 0; 1126} 1127 1128static inline void security_cred_free(struct cred *cred) 1129{ } 1130 1131static inline int security_prepare_creds(struct cred *new, 1132 const struct cred *old, 1133 gfp_t gfp) 1134{ 1135 return 0; 1136} 1137 1138static inline void security_transfer_creds(struct cred *new, 1139 const struct cred *old) 1140{ 1141} 1142 1143static inline void security_cred_getsecid(const struct cred *c, u32 *secid) 1144{ 1145 *secid = 0; 1146} 1147 1148static inline int security_kernel_act_as(struct cred *cred, u32 secid) 1149{ 1150 return 0; 1151} 1152 1153static inline int security_kernel_create_files_as(struct cred *cred, 1154 struct inode *inode) 1155{ 1156 return 0; 1157} 1158 1159static inline int security_kernel_module_request(char *kmod_name) 1160{ 1161 return 0; 1162} 1163 1164static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents) 1165{ 1166 return 0; 1167} 1168 1169static 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 1176static 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 1183static 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 1190static 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 1197static inline int security_task_fix_setgid(struct cred *new, 1198 const struct cred *old, 1199 int flags) 1200{ 1201 return 0; 1202} 1203 1204static inline int security_task_fix_setgroups(struct cred *new, 1205 const struct cred *old) 1206{ 1207 return 0; 1208} 1209 1210static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 1211{ 1212 return 0; 1213} 1214 1215static inline int security_task_getpgid(struct task_struct *p) 1216{ 1217 return 0; 1218} 1219 1220static inline int security_task_getsid(struct task_struct *p) 1221{ 1222 return 0; 1223} 1224 1225static inline void security_current_getsecid_subj(u32 *secid) 1226{ 1227 *secid = 0; 1228} 1229 1230static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid) 1231{ 1232 *secid = 0; 1233} 1234 1235static inline int security_task_setnice(struct task_struct *p, int nice) 1236{ 1237 return cap_task_setnice(p, nice); 1238} 1239 1240static inline int security_task_setioprio(struct task_struct *p, int ioprio) 1241{ 1242 return cap_task_setioprio(p, ioprio); 1243} 1244 1245static inline int security_task_getioprio(struct task_struct *p) 1246{ 1247 return 0; 1248} 1249 1250static inline int security_task_prlimit(const struct cred *cred, 1251 const struct cred *tcred, 1252 unsigned int flags) 1253{ 1254 return 0; 1255} 1256 1257static inline int security_task_setrlimit(struct task_struct *p, 1258 unsigned int resource, 1259 struct rlimit *new_rlim) 1260{ 1261 return 0; 1262} 1263 1264static inline int security_task_setscheduler(struct task_struct *p) 1265{ 1266 return cap_task_setscheduler(p); 1267} 1268 1269static inline int security_task_getscheduler(struct task_struct *p) 1270{ 1271 return 0; 1272} 1273 1274static inline int security_task_movememory(struct task_struct *p) 1275{ 1276 return 0; 1277} 1278 1279static 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 1286static 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 1294static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1295{ } 1296 1297static inline int security_create_user_ns(const struct cred *cred) 1298{ 1299 return 0; 1300} 1301 1302static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1303 short flag) 1304{ 1305 return 0; 1306} 1307 1308static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 1309{ 1310 *secid = 0; 1311} 1312 1313static inline int security_msg_msg_alloc(struct msg_msg *msg) 1314{ 1315 return 0; 1316} 1317 1318static inline void security_msg_msg_free(struct msg_msg *msg) 1319{ } 1320 1321static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) 1322{ 1323 return 0; 1324} 1325 1326static inline void security_msg_queue_free(struct kern_ipc_perm *msq) 1327{ } 1328 1329static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, 1330 int msqflg) 1331{ 1332 return 0; 1333} 1334 1335static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) 1336{ 1337 return 0; 1338} 1339 1340static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, 1341 struct msg_msg *msg, int msqflg) 1342{ 1343 return 0; 1344} 1345 1346static 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 1354static inline int security_shm_alloc(struct kern_ipc_perm *shp) 1355{ 1356 return 0; 1357} 1358 1359static inline void security_shm_free(struct kern_ipc_perm *shp) 1360{ } 1361 1362static inline int security_shm_associate(struct kern_ipc_perm *shp, 1363 int shmflg) 1364{ 1365 return 0; 1366} 1367 1368static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) 1369{ 1370 return 0; 1371} 1372 1373static inline int security_shm_shmat(struct kern_ipc_perm *shp, 1374 char __user *shmaddr, int shmflg) 1375{ 1376 return 0; 1377} 1378 1379static inline int security_sem_alloc(struct kern_ipc_perm *sma) 1380{ 1381 return 0; 1382} 1383 1384static inline void security_sem_free(struct kern_ipc_perm *sma) 1385{ } 1386 1387static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) 1388{ 1389 return 0; 1390} 1391 1392static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) 1393{ 1394 return 0; 1395} 1396 1397static 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 1404static inline void security_d_instantiate(struct dentry *dentry, 1405 struct inode *inode) 1406{ } 1407 1408static 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 1415static 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 1422static inline int security_getprocattr(struct task_struct *p, int lsmid, 1423 const char *name, char **value) 1424{ 1425 return -EINVAL; 1426} 1427 1428static inline int security_setprocattr(int lsmid, char *name, void *value, 1429 size_t size) 1430{ 1431 return -EINVAL; 1432} 1433 1434static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1435{ 1436 return 0; 1437} 1438 1439static inline int security_ismaclabel(const char *name) 1440{ 1441 return 0; 1442} 1443 1444static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 1445{ 1446 return -EOPNOTSUPP; 1447} 1448 1449static inline int security_secctx_to_secid(const char *secdata, 1450 u32 seclen, 1451 u32 *secid) 1452{ 1453 return -EOPNOTSUPP; 1454} 1455 1456static inline void security_release_secctx(char *secdata, u32 seclen) 1457{ 1458} 1459 1460static inline void security_inode_invalidate_secctx(struct inode *inode) 1461{ 1462} 1463 1464static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1465{ 1466 return -EOPNOTSUPP; 1467} 1468static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1469{ 1470 return -EOPNOTSUPP; 1471} 1472static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1473{ 1474 return -EOPNOTSUPP; 1475} 1476static inline int security_locked_down(enum lockdown_reason what) 1477{ 1478 return 0; 1479} 1480static 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) 1489int security_post_notification(const struct cred *w_cred, 1490 const struct cred *cred, 1491 struct watch_notification *n); 1492#else 1493static 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) 1502int security_watch_key(struct key *key); 1503#else 1504static inline int security_watch_key(struct key *key) 1505{ 1506 return 0; 1507} 1508#endif 1509 1510#ifdef CONFIG_SECURITY_NETWORK 1511 1512int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1513int security_unix_may_send(struct socket *sock, struct socket *other); 1514int security_socket_create(int family, int type, int protocol, int kern); 1515int security_socket_post_create(struct socket *sock, int family, 1516 int type, int protocol, int kern); 1517int security_socket_socketpair(struct socket *socka, struct socket *sockb); 1518int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1519int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1520int security_socket_listen(struct socket *sock, int backlog); 1521int security_socket_accept(struct socket *sock, struct socket *newsock); 1522int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1523int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1524 int size, int flags); 1525int security_socket_getsockname(struct socket *sock); 1526int security_socket_getpeername(struct socket *sock); 1527int security_socket_getsockopt(struct socket *sock, int level, int optname); 1528int security_socket_setsockopt(struct socket *sock, int level, int optname); 1529int security_socket_shutdown(struct socket *sock, int how); 1530int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1531int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, 1532 sockptr_t optlen, unsigned int len); 1533int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1534int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1535void security_sk_free(struct sock *sk); 1536void security_sk_clone(const struct sock *sk, struct sock *newsk); 1537void security_sk_classify_flow(const struct sock *sk, 1538 struct flowi_common *flic); 1539void security_req_classify_flow(const struct request_sock *req, 1540 struct flowi_common *flic); 1541void security_sock_graft(struct sock*sk, struct socket *parent); 1542int security_inet_conn_request(const struct sock *sk, 1543 struct sk_buff *skb, struct request_sock *req); 1544void security_inet_csk_clone(struct sock *newsk, 1545 const struct request_sock *req); 1546void security_inet_conn_established(struct sock *sk, 1547 struct sk_buff *skb); 1548int security_secmark_relabel_packet(u32 secid); 1549void security_secmark_refcount_inc(void); 1550void security_secmark_refcount_dec(void); 1551int security_tun_dev_alloc_security(void **security); 1552void security_tun_dev_free_security(void *security); 1553int security_tun_dev_create(void); 1554int security_tun_dev_attach_queue(void *security); 1555int security_tun_dev_attach(struct sock *sk, void *security); 1556int security_tun_dev_open(void *security); 1557int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb); 1558int security_sctp_bind_connect(struct sock *sk, int optname, 1559 struct sockaddr *address, int addrlen); 1560void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, 1561 struct sock *newsk); 1562int security_sctp_assoc_established(struct sctp_association *asoc, 1563 struct sk_buff *skb); 1564int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk); 1565 1566#else /* CONFIG_SECURITY_NETWORK */ 1567static inline int security_unix_stream_connect(struct sock *sock, 1568 struct sock *other, 1569 struct sock *newsk) 1570{ 1571 return 0; 1572} 1573 1574static inline int security_unix_may_send(struct socket *sock, 1575 struct socket *other) 1576{ 1577 return 0; 1578} 1579 1580static inline int security_socket_create(int family, int type, 1581 int protocol, int kern) 1582{ 1583 return 0; 1584} 1585 1586static 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 1594static inline int security_socket_socketpair(struct socket *socka, 1595 struct socket *sockb) 1596{ 1597 return 0; 1598} 1599 1600static inline int security_socket_bind(struct socket *sock, 1601 struct sockaddr *address, 1602 int addrlen) 1603{ 1604 return 0; 1605} 1606 1607static inline int security_socket_connect(struct socket *sock, 1608 struct sockaddr *address, 1609 int addrlen) 1610{ 1611 return 0; 1612} 1613 1614static inline int security_socket_listen(struct socket *sock, int backlog) 1615{ 1616 return 0; 1617} 1618 1619static inline int security_socket_accept(struct socket *sock, 1620 struct socket *newsock) 1621{ 1622 return 0; 1623} 1624 1625static inline int security_socket_sendmsg(struct socket *sock, 1626 struct msghdr *msg, int size) 1627{ 1628 return 0; 1629} 1630 1631static inline int security_socket_recvmsg(struct socket *sock, 1632 struct msghdr *msg, int size, 1633 int flags) 1634{ 1635 return 0; 1636} 1637 1638static inline int security_socket_getsockname(struct socket *sock) 1639{ 1640 return 0; 1641} 1642 1643static inline int security_socket_getpeername(struct socket *sock) 1644{ 1645 return 0; 1646} 1647 1648static inline int security_socket_getsockopt(struct socket *sock, 1649 int level, int optname) 1650{ 1651 return 0; 1652} 1653 1654static inline int security_socket_setsockopt(struct socket *sock, 1655 int level, int optname) 1656{ 1657 return 0; 1658} 1659 1660static inline int security_socket_shutdown(struct socket *sock, int how) 1661{ 1662 return 0; 1663} 1664static inline int security_sock_rcv_skb(struct sock *sk, 1665 struct sk_buff *skb) 1666{ 1667 return 0; 1668} 1669 1670static 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 1678static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1679{ 1680 return -ENOPROTOOPT; 1681} 1682 1683static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1684{ 1685 return 0; 1686} 1687 1688static inline void security_sk_free(struct sock *sk) 1689{ 1690} 1691 1692static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1693{ 1694} 1695 1696static inline void security_sk_classify_flow(const struct sock *sk, 1697 struct flowi_common *flic) 1698{ 1699} 1700 1701static inline void security_req_classify_flow(const struct request_sock *req, 1702 struct flowi_common *flic) 1703{ 1704} 1705 1706static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1707{ 1708} 1709 1710static 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 1716static inline void security_inet_csk_clone(struct sock *newsk, 1717 const struct request_sock *req) 1718{ 1719} 1720 1721static inline void security_inet_conn_established(struct sock *sk, 1722 struct sk_buff *skb) 1723{ 1724} 1725 1726static inline int security_secmark_relabel_packet(u32 secid) 1727{ 1728 return 0; 1729} 1730 1731static inline void security_secmark_refcount_inc(void) 1732{ 1733} 1734 1735static inline void security_secmark_refcount_dec(void) 1736{ 1737} 1738 1739static inline int security_tun_dev_alloc_security(void **security) 1740{ 1741 return 0; 1742} 1743 1744static inline void security_tun_dev_free_security(void *security) 1745{ 1746} 1747 1748static inline int security_tun_dev_create(void) 1749{ 1750 return 0; 1751} 1752 1753static inline int security_tun_dev_attach_queue(void *security) 1754{ 1755 return 0; 1756} 1757 1758static inline int security_tun_dev_attach(struct sock *sk, void *security) 1759{ 1760 return 0; 1761} 1762 1763static inline int security_tun_dev_open(void *security) 1764{ 1765 return 0; 1766} 1767 1768static inline int security_sctp_assoc_request(struct sctp_association *asoc, 1769 struct sk_buff *skb) 1770{ 1771 return 0; 1772} 1773 1774static inline int security_sctp_bind_connect(struct sock *sk, int optname, 1775 struct sockaddr *address, 1776 int addrlen) 1777{ 1778 return 0; 1779} 1780 1781static inline void security_sctp_sk_clone(struct sctp_association *asoc, 1782 struct sock *sk, 1783 struct sock *newsk) 1784{ 1785} 1786 1787static inline int security_sctp_assoc_established(struct sctp_association *asoc, 1788 struct sk_buff *skb) 1789{ 1790 return 0; 1791} 1792 1793static 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 1800int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1801int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1802int security_ib_alloc_security(void **sec); 1803void security_ib_free_security(void *sec); 1804#else /* CONFIG_SECURITY_INFINIBAND */ 1805static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1806{ 1807 return 0; 1808} 1809 1810static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1811{ 1812 return 0; 1813} 1814 1815static inline int security_ib_alloc_security(void **sec) 1816{ 1817 return 0; 1818} 1819 1820static inline void security_ib_free_security(void *sec) 1821{ 1822} 1823#endif /* CONFIG_SECURITY_INFINIBAND */ 1824 1825#ifdef CONFIG_SECURITY_NETWORK_XFRM 1826 1827int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1828 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1829int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1830void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1831int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1832int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1833int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1834 struct xfrm_sec_ctx *polsec, u32 secid); 1835int security_xfrm_state_delete(struct xfrm_state *x); 1836void security_xfrm_state_free(struct xfrm_state *x); 1837int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid); 1838int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1839 struct xfrm_policy *xp, 1840 const struct flowi_common *flic); 1841int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1842void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic); 1843 1844#else /* CONFIG_SECURITY_NETWORK_XFRM */ 1845 1846static 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 1853static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1854{ 1855 return 0; 1856} 1857 1858static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1859{ 1860} 1861 1862static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1863{ 1864 return 0; 1865} 1866 1867static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1868 struct xfrm_user_sec_ctx *sec_ctx) 1869{ 1870 return 0; 1871} 1872 1873static 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 1879static inline void security_xfrm_state_free(struct xfrm_state *x) 1880{ 1881} 1882 1883static inline int security_xfrm_state_delete(struct xfrm_state *x) 1884{ 1885 return 0; 1886} 1887 1888static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid) 1889{ 1890 return 0; 1891} 1892 1893static 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 1900static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1901{ 1902 return 0; 1903} 1904 1905static 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 1913int security_path_unlink(const struct path *dir, struct dentry *dentry); 1914int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 1915int security_path_rmdir(const struct path *dir, struct dentry *dentry); 1916int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 1917 unsigned int dev); 1918void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry); 1919int security_path_truncate(const struct path *path); 1920int security_path_symlink(const struct path *dir, struct dentry *dentry, 1921 const char *old_name); 1922int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 1923 struct dentry *new_dentry); 1924int 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); 1927int security_path_chmod(const struct path *path, umode_t mode); 1928int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 1929int security_path_chroot(const struct path *path); 1930#else /* CONFIG_SECURITY_PATH */ 1931static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 1932{ 1933 return 0; 1934} 1935 1936static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 1937 umode_t mode) 1938{ 1939 return 0; 1940} 1941 1942static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 1943{ 1944 return 0; 1945} 1946 1947static 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 1953static inline void security_path_post_mknod(struct mnt_idmap *idmap, 1954 struct dentry *dentry) 1955{ } 1956 1957static inline int security_path_truncate(const struct path *path) 1958{ 1959 return 0; 1960} 1961 1962static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 1963 const char *old_name) 1964{ 1965 return 0; 1966} 1967 1968static 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 1975static 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 1984static inline int security_path_chmod(const struct path *path, umode_t mode) 1985{ 1986 return 0; 1987} 1988 1989static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 1990{ 1991 return 0; 1992} 1993 1994static 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 2003int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 2004void security_key_free(struct key *key); 2005int security_key_permission(key_ref_t key_ref, const struct cred *cred, 2006 enum key_need_perm need_perm); 2007int security_key_getsecurity(struct key *key, char **_buffer); 2008void 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 2014static inline int security_key_alloc(struct key *key, 2015 const struct cred *cred, 2016 unsigned long flags) 2017{ 2018 return 0; 2019} 2020 2021static inline void security_key_free(struct key *key) 2022{ 2023} 2024 2025static 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 2032static inline int security_key_getsecurity(struct key *key, char **_buffer) 2033{ 2034 *_buffer = NULL; 2035 return 0; 2036} 2037 2038static 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 2051int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); 2052int security_audit_rule_known(struct audit_krule *krule); 2053int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule); 2054void security_audit_rule_free(void *lsmrule); 2055 2056#else 2057 2058static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 2059 void **lsmrule) 2060{ 2061 return 0; 2062} 2063 2064static inline int security_audit_rule_known(struct audit_krule *krule) 2065{ 2066 return 0; 2067} 2068 2069static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, 2070 void *lsmrule) 2071{ 2072 return 0; 2073} 2074 2075static inline void security_audit_rule_free(void *lsmrule) 2076{ } 2077 2078#endif /* CONFIG_SECURITY */ 2079#endif /* CONFIG_AUDIT */ 2080 2081#ifdef CONFIG_SECURITYFS 2082 2083extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 2084 struct dentry *parent, void *data, 2085 const struct file_operations *fops); 2086extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 2087struct dentry *securityfs_create_symlink(const char *name, 2088 struct dentry *parent, 2089 const char *target, 2090 const struct inode_operations *iops); 2091extern void securityfs_remove(struct dentry *dentry); 2092 2093#else /* CONFIG_SECURITYFS */ 2094 2095static inline struct dentry *securityfs_create_dir(const char *name, 2096 struct dentry *parent) 2097{ 2098 return ERR_PTR(-ENODEV); 2099} 2100 2101static 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 2110static 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 2118static inline void securityfs_remove(struct dentry *dentry) 2119{} 2120 2121#endif 2122 2123#ifdef CONFIG_BPF_SYSCALL 2124union bpf_attr; 2125struct bpf_map; 2126struct bpf_prog; 2127struct bpf_token; 2128#ifdef CONFIG_SECURITY 2129extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size); 2130extern int security_bpf_map(struct bpf_map *map, fmode_t fmode); 2131extern int security_bpf_prog(struct bpf_prog *prog); 2132extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, 2133 struct bpf_token *token); 2134extern void security_bpf_map_free(struct bpf_map *map); 2135extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, 2136 struct bpf_token *token); 2137extern void security_bpf_prog_free(struct bpf_prog *prog); 2138extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2139 struct path *path); 2140extern void security_bpf_token_free(struct bpf_token *token); 2141extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd); 2142extern int security_bpf_token_capable(const struct bpf_token *token, int cap); 2143#else 2144static inline int security_bpf(int cmd, union bpf_attr *attr, 2145 unsigned int size) 2146{ 2147 return 0; 2148} 2149 2150static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode) 2151{ 2152 return 0; 2153} 2154 2155static inline int security_bpf_prog(struct bpf_prog *prog) 2156{ 2157 return 0; 2158} 2159 2160static 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 2166static inline void security_bpf_map_free(struct bpf_map *map) 2167{ } 2168 2169static 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 2175static inline void security_bpf_prog_free(struct bpf_prog *prog) 2176{ } 2177 2178static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, 2179 struct path *path) 2180{ 2181 return 0; 2182} 2183 2184static inline void security_bpf_token_free(struct bpf_token *token) 2185{ } 2186 2187static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd) 2188{ 2189 return 0; 2190} 2191 2192static 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 2200struct perf_event_attr; 2201struct perf_event; 2202 2203#ifdef CONFIG_SECURITY 2204extern int security_perf_event_open(struct perf_event_attr *attr, int type); 2205extern int security_perf_event_alloc(struct perf_event *event); 2206extern void security_perf_event_free(struct perf_event *event); 2207extern int security_perf_event_read(struct perf_event *event); 2208extern int security_perf_event_write(struct perf_event *event); 2209#else 2210static inline int security_perf_event_open(struct perf_event_attr *attr, 2211 int type) 2212{ 2213 return 0; 2214} 2215 2216static inline int security_perf_event_alloc(struct perf_event *event) 2217{ 2218 return 0; 2219} 2220 2221static inline void security_perf_event_free(struct perf_event *event) 2222{ 2223} 2224 2225static inline int security_perf_event_read(struct perf_event *event) 2226{ 2227 return 0; 2228} 2229 2230static 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 2239extern int security_uring_override_creds(const struct cred *new); 2240extern int security_uring_sqpoll(void); 2241extern int security_uring_cmd(struct io_uring_cmd *ioucmd); 2242#else 2243static inline int security_uring_override_creds(const struct cred *new) 2244{ 2245 return 0; 2246} 2247static inline int security_uring_sqpoll(void) 2248{ 2249 return 0; 2250} 2251static 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