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