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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/key.h> 27#include <linux/capability.h> 28#include <linux/fs.h> 29#include <linux/slab.h> 30#include <linux/err.h> 31#include <linux/string.h> 32#include <linux/mm.h> 33#include <linux/fs.h> 34 35struct linux_binprm; 36struct cred; 37struct rlimit; 38struct siginfo; 39struct sem_array; 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 shmid_kernel; 54struct msg_msg; 55struct msg_queue; 56struct xattr; 57struct xfrm_sec_ctx; 58struct mm_struct; 59 60/* If capable should audit the security request */ 61#define SECURITY_CAP_NOAUDIT 0 62#define SECURITY_CAP_AUDIT 1 63 64/* LSM Agnostic defines for sb_set_mnt_opts */ 65#define SECURITY_LSM_NATIVE_LABELS 1 66 67struct ctl_table; 68struct audit_krule; 69struct user_namespace; 70struct timezone; 71 72enum lsm_event { 73 LSM_POLICY_CHANGE, 74}; 75 76/* These functions are in security/commoncap.c */ 77extern int cap_capable(const struct cred *cred, struct user_namespace *ns, 78 int cap, int audit); 79extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz); 80extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode); 81extern int cap_ptrace_traceme(struct task_struct *parent); 82extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); 83extern int cap_capset(struct cred *new, const struct cred *old, 84 const kernel_cap_t *effective, 85 const kernel_cap_t *inheritable, 86 const kernel_cap_t *permitted); 87extern int cap_bprm_set_creds(struct linux_binprm *bprm); 88extern int cap_bprm_secureexec(struct linux_binprm *bprm); 89extern int cap_inode_setxattr(struct dentry *dentry, const char *name, 90 const void *value, size_t size, int flags); 91extern int cap_inode_removexattr(struct dentry *dentry, const char *name); 92extern int cap_inode_need_killpriv(struct dentry *dentry); 93extern int cap_inode_killpriv(struct dentry *dentry); 94extern int cap_mmap_addr(unsigned long addr); 95extern int cap_mmap_file(struct file *file, unsigned long reqprot, 96 unsigned long prot, unsigned long flags); 97extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags); 98extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3, 99 unsigned long arg4, unsigned long arg5); 100extern int cap_task_setscheduler(struct task_struct *p); 101extern int cap_task_setioprio(struct task_struct *p, int ioprio); 102extern int cap_task_setnice(struct task_struct *p, int nice); 103extern int cap_vm_enough_memory(struct mm_struct *mm, long pages); 104 105struct msghdr; 106struct sk_buff; 107struct sock; 108struct sockaddr; 109struct socket; 110struct flowi; 111struct dst_entry; 112struct xfrm_selector; 113struct xfrm_policy; 114struct xfrm_state; 115struct xfrm_user_sec_ctx; 116struct seq_file; 117 118#ifdef CONFIG_MMU 119extern unsigned long mmap_min_addr; 120extern unsigned long dac_mmap_min_addr; 121#else 122#define mmap_min_addr 0UL 123#define dac_mmap_min_addr 0UL 124#endif 125 126/* 127 * Values used in the task_security_ops calls 128 */ 129/* setuid or setgid, id0 == uid or gid */ 130#define LSM_SETID_ID 1 131 132/* setreuid or setregid, id0 == real, id1 == eff */ 133#define LSM_SETID_RE 2 134 135/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ 136#define LSM_SETID_RES 4 137 138/* setfsuid or setfsgid, id0 == fsuid or fsgid */ 139#define LSM_SETID_FS 8 140 141/* Flags for security_task_prlimit(). */ 142#define LSM_PRLIMIT_READ 1 143#define LSM_PRLIMIT_WRITE 2 144 145/* forward declares to avoid warnings */ 146struct sched_param; 147struct request_sock; 148 149/* bprm->unsafe reasons */ 150#define LSM_UNSAFE_SHARE 1 151#define LSM_UNSAFE_PTRACE 2 152#define LSM_UNSAFE_NO_NEW_PRIVS 4 153 154#ifdef CONFIG_MMU 155extern int mmap_min_addr_handler(struct ctl_table *table, int write, 156 void __user *buffer, size_t *lenp, loff_t *ppos); 157#endif 158 159/* security_inode_init_security callback function to write xattrs */ 160typedef int (*initxattrs) (struct inode *inode, 161 const struct xattr *xattr_array, void *fs_data); 162 163#ifdef CONFIG_SECURITY 164 165struct security_mnt_opts { 166 char **mnt_opts; 167 int *mnt_opts_flags; 168 int num_mnt_opts; 169}; 170 171int call_lsm_notifier(enum lsm_event event, void *data); 172int register_lsm_notifier(struct notifier_block *nb); 173int unregister_lsm_notifier(struct notifier_block *nb); 174 175static inline void security_init_mnt_opts(struct security_mnt_opts *opts) 176{ 177 opts->mnt_opts = NULL; 178 opts->mnt_opts_flags = NULL; 179 opts->num_mnt_opts = 0; 180} 181 182static inline void security_free_mnt_opts(struct security_mnt_opts *opts) 183{ 184 int i; 185 if (opts->mnt_opts) 186 for (i = 0; i < opts->num_mnt_opts; i++) 187 kfree(opts->mnt_opts[i]); 188 kfree(opts->mnt_opts); 189 opts->mnt_opts = NULL; 190 kfree(opts->mnt_opts_flags); 191 opts->mnt_opts_flags = NULL; 192 opts->num_mnt_opts = 0; 193} 194 195/* prototypes */ 196extern int security_init(void); 197 198/* Security operations */ 199int security_binder_set_context_mgr(struct task_struct *mgr); 200int security_binder_transaction(struct task_struct *from, 201 struct task_struct *to); 202int security_binder_transfer_binder(struct task_struct *from, 203 struct task_struct *to); 204int security_binder_transfer_file(struct task_struct *from, 205 struct task_struct *to, struct file *file); 206int security_ptrace_access_check(struct task_struct *child, unsigned int mode); 207int security_ptrace_traceme(struct task_struct *parent); 208int security_capget(struct task_struct *target, 209 kernel_cap_t *effective, 210 kernel_cap_t *inheritable, 211 kernel_cap_t *permitted); 212int security_capset(struct cred *new, const struct cred *old, 213 const kernel_cap_t *effective, 214 const kernel_cap_t *inheritable, 215 const kernel_cap_t *permitted); 216int security_capable(const struct cred *cred, struct user_namespace *ns, 217 int cap); 218int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, 219 int cap); 220int security_quotactl(int cmds, int type, int id, struct super_block *sb); 221int security_quota_on(struct dentry *dentry); 222int security_syslog(int type); 223int security_settime64(const struct timespec64 *ts, const struct timezone *tz); 224static inline int security_settime(const struct timespec *ts, const struct timezone *tz) 225{ 226 struct timespec64 ts64 = timespec_to_timespec64(*ts); 227 228 return security_settime64(&ts64, tz); 229} 230int security_vm_enough_memory_mm(struct mm_struct *mm, long pages); 231int security_bprm_set_creds(struct linux_binprm *bprm); 232int security_bprm_check(struct linux_binprm *bprm); 233void security_bprm_committing_creds(struct linux_binprm *bprm); 234void security_bprm_committed_creds(struct linux_binprm *bprm); 235int security_bprm_secureexec(struct linux_binprm *bprm); 236int security_sb_alloc(struct super_block *sb); 237void security_sb_free(struct super_block *sb); 238int security_sb_copy_data(char *orig, char *copy); 239int security_sb_remount(struct super_block *sb, void *data); 240int security_sb_kern_mount(struct super_block *sb, int flags, void *data); 241int security_sb_show_options(struct seq_file *m, struct super_block *sb); 242int security_sb_statfs(struct dentry *dentry); 243int security_sb_mount(const char *dev_name, const struct path *path, 244 const char *type, unsigned long flags, void *data); 245int security_sb_umount(struct vfsmount *mnt, int flags); 246int security_sb_pivotroot(const struct path *old_path, const struct path *new_path); 247int security_sb_set_mnt_opts(struct super_block *sb, 248 struct security_mnt_opts *opts, 249 unsigned long kern_flags, 250 unsigned long *set_kern_flags); 251int security_sb_clone_mnt_opts(const struct super_block *oldsb, 252 struct super_block *newsb, 253 unsigned long kern_flags, 254 unsigned long *set_kern_flags); 255int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); 256int security_dentry_init_security(struct dentry *dentry, int mode, 257 const struct qstr *name, void **ctx, 258 u32 *ctxlen); 259int security_dentry_create_files_as(struct dentry *dentry, int mode, 260 struct qstr *name, 261 const struct cred *old, 262 struct cred *new); 263 264int security_inode_alloc(struct inode *inode); 265void security_inode_free(struct inode *inode); 266int security_inode_init_security(struct inode *inode, struct inode *dir, 267 const struct qstr *qstr, 268 initxattrs initxattrs, void *fs_data); 269int security_old_inode_init_security(struct inode *inode, struct inode *dir, 270 const struct qstr *qstr, const char **name, 271 void **value, size_t *len); 272int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode); 273int security_inode_link(struct dentry *old_dentry, struct inode *dir, 274 struct dentry *new_dentry); 275int security_inode_unlink(struct inode *dir, struct dentry *dentry); 276int security_inode_symlink(struct inode *dir, struct dentry *dentry, 277 const char *old_name); 278int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode); 279int security_inode_rmdir(struct inode *dir, struct dentry *dentry); 280int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev); 281int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, 282 struct inode *new_dir, struct dentry *new_dentry, 283 unsigned int flags); 284int security_inode_readlink(struct dentry *dentry); 285int security_inode_follow_link(struct dentry *dentry, struct inode *inode, 286 bool rcu); 287int security_inode_permission(struct inode *inode, int mask); 288int security_inode_setattr(struct dentry *dentry, struct iattr *attr); 289int security_inode_getattr(const struct path *path); 290int security_inode_setxattr(struct dentry *dentry, const char *name, 291 const void *value, size_t size, int flags); 292void security_inode_post_setxattr(struct dentry *dentry, const char *name, 293 const void *value, size_t size, int flags); 294int security_inode_getxattr(struct dentry *dentry, const char *name); 295int security_inode_listxattr(struct dentry *dentry); 296int security_inode_removexattr(struct dentry *dentry, const char *name); 297int security_inode_need_killpriv(struct dentry *dentry); 298int security_inode_killpriv(struct dentry *dentry); 299int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc); 300int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); 301int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); 302void security_inode_getsecid(struct inode *inode, u32 *secid); 303int security_inode_copy_up(struct dentry *src, struct cred **new); 304int security_inode_copy_up_xattr(const char *name); 305int security_file_permission(struct file *file, int mask); 306int security_file_alloc(struct file *file); 307void security_file_free(struct file *file); 308int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 309int security_mmap_file(struct file *file, unsigned long prot, 310 unsigned long flags); 311int security_mmap_addr(unsigned long addr); 312int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, 313 unsigned long prot); 314int security_file_lock(struct file *file, unsigned int cmd); 315int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg); 316void security_file_set_fowner(struct file *file); 317int security_file_send_sigiotask(struct task_struct *tsk, 318 struct fown_struct *fown, int sig); 319int security_file_receive(struct file *file); 320int security_file_open(struct file *file, const struct cred *cred); 321int security_task_create(unsigned long clone_flags); 322int security_task_alloc(struct task_struct *task, unsigned long clone_flags); 323void security_task_free(struct task_struct *task); 324int security_cred_alloc_blank(struct cred *cred, gfp_t gfp); 325void security_cred_free(struct cred *cred); 326int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); 327void security_transfer_creds(struct cred *new, const struct cred *old); 328int security_kernel_act_as(struct cred *new, u32 secid); 329int security_kernel_create_files_as(struct cred *new, struct inode *inode); 330int security_kernel_module_request(char *kmod_name); 331int security_kernel_read_file(struct file *file, enum kernel_read_file_id id); 332int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, 333 enum kernel_read_file_id id); 334int security_task_fix_setuid(struct cred *new, const struct cred *old, 335 int flags); 336int security_task_setpgid(struct task_struct *p, pid_t pgid); 337int security_task_getpgid(struct task_struct *p); 338int security_task_getsid(struct task_struct *p); 339void security_task_getsecid(struct task_struct *p, u32 *secid); 340int security_task_setnice(struct task_struct *p, int nice); 341int security_task_setioprio(struct task_struct *p, int ioprio); 342int security_task_getioprio(struct task_struct *p); 343int security_task_prlimit(const struct cred *cred, const struct cred *tcred, 344 unsigned int flags); 345int security_task_setrlimit(struct task_struct *p, unsigned int resource, 346 struct rlimit *new_rlim); 347int security_task_setscheduler(struct task_struct *p); 348int security_task_getscheduler(struct task_struct *p); 349int security_task_movememory(struct task_struct *p); 350int security_task_kill(struct task_struct *p, struct siginfo *info, 351 int sig, u32 secid); 352int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, 353 unsigned long arg4, unsigned long arg5); 354void security_task_to_inode(struct task_struct *p, struct inode *inode); 355int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); 356void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); 357int security_msg_msg_alloc(struct msg_msg *msg); 358void security_msg_msg_free(struct msg_msg *msg); 359int security_msg_queue_alloc(struct msg_queue *msq); 360void security_msg_queue_free(struct msg_queue *msq); 361int security_msg_queue_associate(struct msg_queue *msq, int msqflg); 362int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); 363int security_msg_queue_msgsnd(struct msg_queue *msq, 364 struct msg_msg *msg, int msqflg); 365int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, 366 struct task_struct *target, long type, int mode); 367int security_shm_alloc(struct shmid_kernel *shp); 368void security_shm_free(struct shmid_kernel *shp); 369int security_shm_associate(struct shmid_kernel *shp, int shmflg); 370int security_shm_shmctl(struct shmid_kernel *shp, int cmd); 371int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); 372int security_sem_alloc(struct sem_array *sma); 373void security_sem_free(struct sem_array *sma); 374int security_sem_associate(struct sem_array *sma, int semflg); 375int security_sem_semctl(struct sem_array *sma, int cmd); 376int security_sem_semop(struct sem_array *sma, struct sembuf *sops, 377 unsigned nsops, int alter); 378void security_d_instantiate(struct dentry *dentry, struct inode *inode); 379int security_getprocattr(struct task_struct *p, char *name, char **value); 380int security_setprocattr(const char *name, void *value, size_t size); 381int security_netlink_send(struct sock *sk, struct sk_buff *skb); 382int security_ismaclabel(const char *name); 383int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen); 384int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid); 385void security_release_secctx(char *secdata, u32 seclen); 386 387void security_inode_invalidate_secctx(struct inode *inode); 388int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen); 389int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen); 390int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen); 391#else /* CONFIG_SECURITY */ 392struct security_mnt_opts { 393}; 394 395static inline int call_lsm_notifier(enum lsm_event event, void *data) 396{ 397 return 0; 398} 399 400static inline int register_lsm_notifier(struct notifier_block *nb) 401{ 402 return 0; 403} 404 405static inline int unregister_lsm_notifier(struct notifier_block *nb) 406{ 407 return 0; 408} 409 410static inline void security_init_mnt_opts(struct security_mnt_opts *opts) 411{ 412} 413 414static inline void security_free_mnt_opts(struct security_mnt_opts *opts) 415{ 416} 417 418/* 419 * This is the default capabilities functionality. Most of these functions 420 * are just stubbed out, but a few must call the proper capable code. 421 */ 422 423static inline int security_init(void) 424{ 425 return 0; 426} 427 428static inline int security_binder_set_context_mgr(struct task_struct *mgr) 429{ 430 return 0; 431} 432 433static inline int security_binder_transaction(struct task_struct *from, 434 struct task_struct *to) 435{ 436 return 0; 437} 438 439static inline int security_binder_transfer_binder(struct task_struct *from, 440 struct task_struct *to) 441{ 442 return 0; 443} 444 445static inline int security_binder_transfer_file(struct task_struct *from, 446 struct task_struct *to, 447 struct file *file) 448{ 449 return 0; 450} 451 452static inline int security_ptrace_access_check(struct task_struct *child, 453 unsigned int mode) 454{ 455 return cap_ptrace_access_check(child, mode); 456} 457 458static inline int security_ptrace_traceme(struct task_struct *parent) 459{ 460 return cap_ptrace_traceme(parent); 461} 462 463static inline int security_capget(struct task_struct *target, 464 kernel_cap_t *effective, 465 kernel_cap_t *inheritable, 466 kernel_cap_t *permitted) 467{ 468 return cap_capget(target, effective, inheritable, permitted); 469} 470 471static inline int security_capset(struct cred *new, 472 const struct cred *old, 473 const kernel_cap_t *effective, 474 const kernel_cap_t *inheritable, 475 const kernel_cap_t *permitted) 476{ 477 return cap_capset(new, old, effective, inheritable, permitted); 478} 479 480static inline int security_capable(const struct cred *cred, 481 struct user_namespace *ns, int cap) 482{ 483 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT); 484} 485 486static inline int security_capable_noaudit(const struct cred *cred, 487 struct user_namespace *ns, int cap) { 488 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); 489} 490 491static inline int security_quotactl(int cmds, int type, int id, 492 struct super_block *sb) 493{ 494 return 0; 495} 496 497static inline int security_quota_on(struct dentry *dentry) 498{ 499 return 0; 500} 501 502static inline int security_syslog(int type) 503{ 504 return 0; 505} 506 507static inline int security_settime64(const struct timespec64 *ts, 508 const struct timezone *tz) 509{ 510 return cap_settime(ts, tz); 511} 512 513static inline int security_settime(const struct timespec *ts, 514 const struct timezone *tz) 515{ 516 struct timespec64 ts64 = timespec_to_timespec64(*ts); 517 518 return cap_settime(&ts64, tz); 519} 520 521static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) 522{ 523 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages)); 524} 525 526static inline int security_bprm_set_creds(struct linux_binprm *bprm) 527{ 528 return cap_bprm_set_creds(bprm); 529} 530 531static inline int security_bprm_check(struct linux_binprm *bprm) 532{ 533 return 0; 534} 535 536static inline void security_bprm_committing_creds(struct linux_binprm *bprm) 537{ 538} 539 540static inline void security_bprm_committed_creds(struct linux_binprm *bprm) 541{ 542} 543 544static inline int security_bprm_secureexec(struct linux_binprm *bprm) 545{ 546 return cap_bprm_secureexec(bprm); 547} 548 549static inline int security_sb_alloc(struct super_block *sb) 550{ 551 return 0; 552} 553 554static inline void security_sb_free(struct super_block *sb) 555{ } 556 557static inline int security_sb_copy_data(char *orig, char *copy) 558{ 559 return 0; 560} 561 562static inline int security_sb_remount(struct super_block *sb, void *data) 563{ 564 return 0; 565} 566 567static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data) 568{ 569 return 0; 570} 571 572static inline int security_sb_show_options(struct seq_file *m, 573 struct super_block *sb) 574{ 575 return 0; 576} 577 578static inline int security_sb_statfs(struct dentry *dentry) 579{ 580 return 0; 581} 582 583static inline int security_sb_mount(const char *dev_name, const struct path *path, 584 const char *type, unsigned long flags, 585 void *data) 586{ 587 return 0; 588} 589 590static inline int security_sb_umount(struct vfsmount *mnt, int flags) 591{ 592 return 0; 593} 594 595static inline int security_sb_pivotroot(const struct path *old_path, 596 const struct path *new_path) 597{ 598 return 0; 599} 600 601static inline int security_sb_set_mnt_opts(struct super_block *sb, 602 struct security_mnt_opts *opts, 603 unsigned long kern_flags, 604 unsigned long *set_kern_flags) 605{ 606 return 0; 607} 608 609static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb, 610 struct super_block *newsb, 611 unsigned long kern_flags, 612 unsigned long *set_kern_flags) 613{ 614 return 0; 615} 616 617static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) 618{ 619 return 0; 620} 621 622static inline int security_inode_alloc(struct inode *inode) 623{ 624 return 0; 625} 626 627static inline void security_inode_free(struct inode *inode) 628{ } 629 630static inline int security_dentry_init_security(struct dentry *dentry, 631 int mode, 632 const struct qstr *name, 633 void **ctx, 634 u32 *ctxlen) 635{ 636 return -EOPNOTSUPP; 637} 638 639static inline int security_dentry_create_files_as(struct dentry *dentry, 640 int mode, struct qstr *name, 641 const struct cred *old, 642 struct cred *new) 643{ 644 return 0; 645} 646 647 648static inline int security_inode_init_security(struct inode *inode, 649 struct inode *dir, 650 const struct qstr *qstr, 651 const initxattrs xattrs, 652 void *fs_data) 653{ 654 return 0; 655} 656 657static inline int security_old_inode_init_security(struct inode *inode, 658 struct inode *dir, 659 const struct qstr *qstr, 660 const char **name, 661 void **value, size_t *len) 662{ 663 return -EOPNOTSUPP; 664} 665 666static inline int security_inode_create(struct inode *dir, 667 struct dentry *dentry, 668 umode_t mode) 669{ 670 return 0; 671} 672 673static inline int security_inode_link(struct dentry *old_dentry, 674 struct inode *dir, 675 struct dentry *new_dentry) 676{ 677 return 0; 678} 679 680static inline int security_inode_unlink(struct inode *dir, 681 struct dentry *dentry) 682{ 683 return 0; 684} 685 686static inline int security_inode_symlink(struct inode *dir, 687 struct dentry *dentry, 688 const char *old_name) 689{ 690 return 0; 691} 692 693static inline int security_inode_mkdir(struct inode *dir, 694 struct dentry *dentry, 695 int mode) 696{ 697 return 0; 698} 699 700static inline int security_inode_rmdir(struct inode *dir, 701 struct dentry *dentry) 702{ 703 return 0; 704} 705 706static inline int security_inode_mknod(struct inode *dir, 707 struct dentry *dentry, 708 int mode, dev_t dev) 709{ 710 return 0; 711} 712 713static inline int security_inode_rename(struct inode *old_dir, 714 struct dentry *old_dentry, 715 struct inode *new_dir, 716 struct dentry *new_dentry, 717 unsigned int flags) 718{ 719 return 0; 720} 721 722static inline int security_inode_readlink(struct dentry *dentry) 723{ 724 return 0; 725} 726 727static inline int security_inode_follow_link(struct dentry *dentry, 728 struct inode *inode, 729 bool rcu) 730{ 731 return 0; 732} 733 734static inline int security_inode_permission(struct inode *inode, int mask) 735{ 736 return 0; 737} 738 739static inline int security_inode_setattr(struct dentry *dentry, 740 struct iattr *attr) 741{ 742 return 0; 743} 744 745static inline int security_inode_getattr(const struct path *path) 746{ 747 return 0; 748} 749 750static inline int security_inode_setxattr(struct dentry *dentry, 751 const char *name, const void *value, size_t size, int flags) 752{ 753 return cap_inode_setxattr(dentry, name, value, size, flags); 754} 755 756static inline void security_inode_post_setxattr(struct dentry *dentry, 757 const char *name, const void *value, size_t size, int flags) 758{ } 759 760static inline int security_inode_getxattr(struct dentry *dentry, 761 const char *name) 762{ 763 return 0; 764} 765 766static inline int security_inode_listxattr(struct dentry *dentry) 767{ 768 return 0; 769} 770 771static inline int security_inode_removexattr(struct dentry *dentry, 772 const char *name) 773{ 774 return cap_inode_removexattr(dentry, name); 775} 776 777static inline int security_inode_need_killpriv(struct dentry *dentry) 778{ 779 return cap_inode_need_killpriv(dentry); 780} 781 782static inline int security_inode_killpriv(struct dentry *dentry) 783{ 784 return cap_inode_killpriv(dentry); 785} 786 787static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) 788{ 789 return -EOPNOTSUPP; 790} 791 792static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) 793{ 794 return -EOPNOTSUPP; 795} 796 797static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) 798{ 799 return 0; 800} 801 802static inline void security_inode_getsecid(struct inode *inode, u32 *secid) 803{ 804 *secid = 0; 805} 806 807static inline int security_inode_copy_up(struct dentry *src, struct cred **new) 808{ 809 return 0; 810} 811 812static inline int security_inode_copy_up_xattr(const char *name) 813{ 814 return -EOPNOTSUPP; 815} 816 817static inline int security_file_permission(struct file *file, int mask) 818{ 819 return 0; 820} 821 822static inline int security_file_alloc(struct file *file) 823{ 824 return 0; 825} 826 827static inline void security_file_free(struct file *file) 828{ } 829 830static inline int security_file_ioctl(struct file *file, unsigned int cmd, 831 unsigned long arg) 832{ 833 return 0; 834} 835 836static inline int security_mmap_file(struct file *file, unsigned long prot, 837 unsigned long flags) 838{ 839 return 0; 840} 841 842static inline int security_mmap_addr(unsigned long addr) 843{ 844 return cap_mmap_addr(addr); 845} 846 847static inline int security_file_mprotect(struct vm_area_struct *vma, 848 unsigned long reqprot, 849 unsigned long prot) 850{ 851 return 0; 852} 853 854static inline int security_file_lock(struct file *file, unsigned int cmd) 855{ 856 return 0; 857} 858 859static inline int security_file_fcntl(struct file *file, unsigned int cmd, 860 unsigned long arg) 861{ 862 return 0; 863} 864 865static inline void security_file_set_fowner(struct file *file) 866{ 867 return; 868} 869 870static inline int security_file_send_sigiotask(struct task_struct *tsk, 871 struct fown_struct *fown, 872 int sig) 873{ 874 return 0; 875} 876 877static inline int security_file_receive(struct file *file) 878{ 879 return 0; 880} 881 882static inline int security_file_open(struct file *file, 883 const struct cred *cred) 884{ 885 return 0; 886} 887 888static inline int security_task_create(unsigned long clone_flags) 889{ 890 return 0; 891} 892 893static inline int security_task_alloc(struct task_struct *task, 894 unsigned long clone_flags) 895{ 896 return 0; 897} 898 899static inline void security_task_free(struct task_struct *task) 900{ } 901 902static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) 903{ 904 return 0; 905} 906 907static inline void security_cred_free(struct cred *cred) 908{ } 909 910static inline int security_prepare_creds(struct cred *new, 911 const struct cred *old, 912 gfp_t gfp) 913{ 914 return 0; 915} 916 917static inline void security_transfer_creds(struct cred *new, 918 const struct cred *old) 919{ 920} 921 922static inline int security_kernel_act_as(struct cred *cred, u32 secid) 923{ 924 return 0; 925} 926 927static inline int security_kernel_create_files_as(struct cred *cred, 928 struct inode *inode) 929{ 930 return 0; 931} 932 933static inline int security_kernel_module_request(char *kmod_name) 934{ 935 return 0; 936} 937 938static inline int security_kernel_read_file(struct file *file, 939 enum kernel_read_file_id id) 940{ 941 return 0; 942} 943 944static inline int security_kernel_post_read_file(struct file *file, 945 char *buf, loff_t size, 946 enum kernel_read_file_id id) 947{ 948 return 0; 949} 950 951static inline int security_task_fix_setuid(struct cred *new, 952 const struct cred *old, 953 int flags) 954{ 955 return cap_task_fix_setuid(new, old, flags); 956} 957 958static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) 959{ 960 return 0; 961} 962 963static inline int security_task_getpgid(struct task_struct *p) 964{ 965 return 0; 966} 967 968static inline int security_task_getsid(struct task_struct *p) 969{ 970 return 0; 971} 972 973static inline void security_task_getsecid(struct task_struct *p, u32 *secid) 974{ 975 *secid = 0; 976} 977 978static inline int security_task_setnice(struct task_struct *p, int nice) 979{ 980 return cap_task_setnice(p, nice); 981} 982 983static inline int security_task_setioprio(struct task_struct *p, int ioprio) 984{ 985 return cap_task_setioprio(p, ioprio); 986} 987 988static inline int security_task_getioprio(struct task_struct *p) 989{ 990 return 0; 991} 992 993static inline int security_task_prlimit(const struct cred *cred, 994 const struct cred *tcred, 995 unsigned int flags) 996{ 997 return 0; 998} 999 1000static inline int security_task_setrlimit(struct task_struct *p, 1001 unsigned int resource, 1002 struct rlimit *new_rlim) 1003{ 1004 return 0; 1005} 1006 1007static inline int security_task_setscheduler(struct task_struct *p) 1008{ 1009 return cap_task_setscheduler(p); 1010} 1011 1012static inline int security_task_getscheduler(struct task_struct *p) 1013{ 1014 return 0; 1015} 1016 1017static inline int security_task_movememory(struct task_struct *p) 1018{ 1019 return 0; 1020} 1021 1022static inline int security_task_kill(struct task_struct *p, 1023 struct siginfo *info, int sig, 1024 u32 secid) 1025{ 1026 return 0; 1027} 1028 1029static inline int security_task_prctl(int option, unsigned long arg2, 1030 unsigned long arg3, 1031 unsigned long arg4, 1032 unsigned long arg5) 1033{ 1034 return cap_task_prctl(option, arg2, arg3, arg4, arg5); 1035} 1036 1037static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) 1038{ } 1039 1040static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, 1041 short flag) 1042{ 1043 return 0; 1044} 1045 1046static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) 1047{ 1048 *secid = 0; 1049} 1050 1051static inline int security_msg_msg_alloc(struct msg_msg *msg) 1052{ 1053 return 0; 1054} 1055 1056static inline void security_msg_msg_free(struct msg_msg *msg) 1057{ } 1058 1059static inline int security_msg_queue_alloc(struct msg_queue *msq) 1060{ 1061 return 0; 1062} 1063 1064static inline void security_msg_queue_free(struct msg_queue *msq) 1065{ } 1066 1067static inline int security_msg_queue_associate(struct msg_queue *msq, 1068 int msqflg) 1069{ 1070 return 0; 1071} 1072 1073static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) 1074{ 1075 return 0; 1076} 1077 1078static inline int security_msg_queue_msgsnd(struct msg_queue *msq, 1079 struct msg_msg *msg, int msqflg) 1080{ 1081 return 0; 1082} 1083 1084static inline int security_msg_queue_msgrcv(struct msg_queue *msq, 1085 struct msg_msg *msg, 1086 struct task_struct *target, 1087 long type, int mode) 1088{ 1089 return 0; 1090} 1091 1092static inline int security_shm_alloc(struct shmid_kernel *shp) 1093{ 1094 return 0; 1095} 1096 1097static inline void security_shm_free(struct shmid_kernel *shp) 1098{ } 1099 1100static inline int security_shm_associate(struct shmid_kernel *shp, 1101 int shmflg) 1102{ 1103 return 0; 1104} 1105 1106static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) 1107{ 1108 return 0; 1109} 1110 1111static inline int security_shm_shmat(struct shmid_kernel *shp, 1112 char __user *shmaddr, int shmflg) 1113{ 1114 return 0; 1115} 1116 1117static inline int security_sem_alloc(struct sem_array *sma) 1118{ 1119 return 0; 1120} 1121 1122static inline void security_sem_free(struct sem_array *sma) 1123{ } 1124 1125static inline int security_sem_associate(struct sem_array *sma, int semflg) 1126{ 1127 return 0; 1128} 1129 1130static inline int security_sem_semctl(struct sem_array *sma, int cmd) 1131{ 1132 return 0; 1133} 1134 1135static inline int security_sem_semop(struct sem_array *sma, 1136 struct sembuf *sops, unsigned nsops, 1137 int alter) 1138{ 1139 return 0; 1140} 1141 1142static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) 1143{ } 1144 1145static inline int security_getprocattr(struct task_struct *p, char *name, char **value) 1146{ 1147 return -EINVAL; 1148} 1149 1150static inline int security_setprocattr(char *name, void *value, size_t size) 1151{ 1152 return -EINVAL; 1153} 1154 1155static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) 1156{ 1157 return 0; 1158} 1159 1160static inline int security_ismaclabel(const char *name) 1161{ 1162 return 0; 1163} 1164 1165static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) 1166{ 1167 return -EOPNOTSUPP; 1168} 1169 1170static inline int security_secctx_to_secid(const char *secdata, 1171 u32 seclen, 1172 u32 *secid) 1173{ 1174 return -EOPNOTSUPP; 1175} 1176 1177static inline void security_release_secctx(char *secdata, u32 seclen) 1178{ 1179} 1180 1181static inline void security_inode_invalidate_secctx(struct inode *inode) 1182{ 1183} 1184 1185static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) 1186{ 1187 return -EOPNOTSUPP; 1188} 1189static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) 1190{ 1191 return -EOPNOTSUPP; 1192} 1193static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) 1194{ 1195 return -EOPNOTSUPP; 1196} 1197#endif /* CONFIG_SECURITY */ 1198 1199#ifdef CONFIG_SECURITY_NETWORK 1200 1201int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); 1202int security_unix_may_send(struct socket *sock, struct socket *other); 1203int security_socket_create(int family, int type, int protocol, int kern); 1204int security_socket_post_create(struct socket *sock, int family, 1205 int type, int protocol, int kern); 1206int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); 1207int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); 1208int security_socket_listen(struct socket *sock, int backlog); 1209int security_socket_accept(struct socket *sock, struct socket *newsock); 1210int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); 1211int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, 1212 int size, int flags); 1213int security_socket_getsockname(struct socket *sock); 1214int security_socket_getpeername(struct socket *sock); 1215int security_socket_getsockopt(struct socket *sock, int level, int optname); 1216int security_socket_setsockopt(struct socket *sock, int level, int optname); 1217int security_socket_shutdown(struct socket *sock, int how); 1218int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); 1219int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1220 int __user *optlen, unsigned len); 1221int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); 1222int security_sk_alloc(struct sock *sk, int family, gfp_t priority); 1223void security_sk_free(struct sock *sk); 1224void security_sk_clone(const struct sock *sk, struct sock *newsk); 1225void security_sk_classify_flow(struct sock *sk, struct flowi *fl); 1226void security_req_classify_flow(const struct request_sock *req, struct flowi *fl); 1227void security_sock_graft(struct sock*sk, struct socket *parent); 1228int security_inet_conn_request(struct sock *sk, 1229 struct sk_buff *skb, struct request_sock *req); 1230void security_inet_csk_clone(struct sock *newsk, 1231 const struct request_sock *req); 1232void security_inet_conn_established(struct sock *sk, 1233 struct sk_buff *skb); 1234int security_secmark_relabel_packet(u32 secid); 1235void security_secmark_refcount_inc(void); 1236void security_secmark_refcount_dec(void); 1237int security_tun_dev_alloc_security(void **security); 1238void security_tun_dev_free_security(void *security); 1239int security_tun_dev_create(void); 1240int security_tun_dev_attach_queue(void *security); 1241int security_tun_dev_attach(struct sock *sk, void *security); 1242int security_tun_dev_open(void *security); 1243 1244#else /* CONFIG_SECURITY_NETWORK */ 1245static inline int security_unix_stream_connect(struct sock *sock, 1246 struct sock *other, 1247 struct sock *newsk) 1248{ 1249 return 0; 1250} 1251 1252static inline int security_unix_may_send(struct socket *sock, 1253 struct socket *other) 1254{ 1255 return 0; 1256} 1257 1258static inline int security_socket_create(int family, int type, 1259 int protocol, int kern) 1260{ 1261 return 0; 1262} 1263 1264static inline int security_socket_post_create(struct socket *sock, 1265 int family, 1266 int type, 1267 int protocol, int kern) 1268{ 1269 return 0; 1270} 1271 1272static inline int security_socket_bind(struct socket *sock, 1273 struct sockaddr *address, 1274 int addrlen) 1275{ 1276 return 0; 1277} 1278 1279static inline int security_socket_connect(struct socket *sock, 1280 struct sockaddr *address, 1281 int addrlen) 1282{ 1283 return 0; 1284} 1285 1286static inline int security_socket_listen(struct socket *sock, int backlog) 1287{ 1288 return 0; 1289} 1290 1291static inline int security_socket_accept(struct socket *sock, 1292 struct socket *newsock) 1293{ 1294 return 0; 1295} 1296 1297static inline int security_socket_sendmsg(struct socket *sock, 1298 struct msghdr *msg, int size) 1299{ 1300 return 0; 1301} 1302 1303static inline int security_socket_recvmsg(struct socket *sock, 1304 struct msghdr *msg, int size, 1305 int flags) 1306{ 1307 return 0; 1308} 1309 1310static inline int security_socket_getsockname(struct socket *sock) 1311{ 1312 return 0; 1313} 1314 1315static inline int security_socket_getpeername(struct socket *sock) 1316{ 1317 return 0; 1318} 1319 1320static inline int security_socket_getsockopt(struct socket *sock, 1321 int level, int optname) 1322{ 1323 return 0; 1324} 1325 1326static inline int security_socket_setsockopt(struct socket *sock, 1327 int level, int optname) 1328{ 1329 return 0; 1330} 1331 1332static inline int security_socket_shutdown(struct socket *sock, int how) 1333{ 1334 return 0; 1335} 1336static inline int security_sock_rcv_skb(struct sock *sk, 1337 struct sk_buff *skb) 1338{ 1339 return 0; 1340} 1341 1342static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, 1343 int __user *optlen, unsigned len) 1344{ 1345 return -ENOPROTOOPT; 1346} 1347 1348static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) 1349{ 1350 return -ENOPROTOOPT; 1351} 1352 1353static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) 1354{ 1355 return 0; 1356} 1357 1358static inline void security_sk_free(struct sock *sk) 1359{ 1360} 1361 1362static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) 1363{ 1364} 1365 1366static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl) 1367{ 1368} 1369 1370static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) 1371{ 1372} 1373 1374static inline void security_sock_graft(struct sock *sk, struct socket *parent) 1375{ 1376} 1377 1378static inline int security_inet_conn_request(struct sock *sk, 1379 struct sk_buff *skb, struct request_sock *req) 1380{ 1381 return 0; 1382} 1383 1384static inline void security_inet_csk_clone(struct sock *newsk, 1385 const struct request_sock *req) 1386{ 1387} 1388 1389static inline void security_inet_conn_established(struct sock *sk, 1390 struct sk_buff *skb) 1391{ 1392} 1393 1394static inline int security_secmark_relabel_packet(u32 secid) 1395{ 1396 return 0; 1397} 1398 1399static inline void security_secmark_refcount_inc(void) 1400{ 1401} 1402 1403static inline void security_secmark_refcount_dec(void) 1404{ 1405} 1406 1407static inline int security_tun_dev_alloc_security(void **security) 1408{ 1409 return 0; 1410} 1411 1412static inline void security_tun_dev_free_security(void *security) 1413{ 1414} 1415 1416static inline int security_tun_dev_create(void) 1417{ 1418 return 0; 1419} 1420 1421static inline int security_tun_dev_attach_queue(void *security) 1422{ 1423 return 0; 1424} 1425 1426static inline int security_tun_dev_attach(struct sock *sk, void *security) 1427{ 1428 return 0; 1429} 1430 1431static inline int security_tun_dev_open(void *security) 1432{ 1433 return 0; 1434} 1435#endif /* CONFIG_SECURITY_NETWORK */ 1436 1437#ifdef CONFIG_SECURITY_INFINIBAND 1438int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); 1439int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); 1440int security_ib_alloc_security(void **sec); 1441void security_ib_free_security(void *sec); 1442#else /* CONFIG_SECURITY_INFINIBAND */ 1443static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) 1444{ 1445 return 0; 1446} 1447 1448static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) 1449{ 1450 return 0; 1451} 1452 1453static inline int security_ib_alloc_security(void **sec) 1454{ 1455 return 0; 1456} 1457 1458static inline void security_ib_free_security(void *sec) 1459{ 1460} 1461#endif /* CONFIG_SECURITY_INFINIBAND */ 1462 1463#ifdef CONFIG_SECURITY_NETWORK_XFRM 1464 1465int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1466 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); 1467int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); 1468void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); 1469int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); 1470int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); 1471int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1472 struct xfrm_sec_ctx *polsec, u32 secid); 1473int security_xfrm_state_delete(struct xfrm_state *x); 1474void security_xfrm_state_free(struct xfrm_state *x); 1475int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); 1476int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1477 struct xfrm_policy *xp, 1478 const struct flowi *fl); 1479int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); 1480void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl); 1481 1482#else /* CONFIG_SECURITY_NETWORK_XFRM */ 1483 1484static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, 1485 struct xfrm_user_sec_ctx *sec_ctx, 1486 gfp_t gfp) 1487{ 1488 return 0; 1489} 1490 1491static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) 1492{ 1493 return 0; 1494} 1495 1496static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) 1497{ 1498} 1499 1500static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) 1501{ 1502 return 0; 1503} 1504 1505static inline int security_xfrm_state_alloc(struct xfrm_state *x, 1506 struct xfrm_user_sec_ctx *sec_ctx) 1507{ 1508 return 0; 1509} 1510 1511static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, 1512 struct xfrm_sec_ctx *polsec, u32 secid) 1513{ 1514 return 0; 1515} 1516 1517static inline void security_xfrm_state_free(struct xfrm_state *x) 1518{ 1519} 1520 1521static inline int security_xfrm_state_delete(struct xfrm_state *x) 1522{ 1523 return 0; 1524} 1525 1526static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) 1527{ 1528 return 0; 1529} 1530 1531static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, 1532 struct xfrm_policy *xp, const struct flowi *fl) 1533{ 1534 return 1; 1535} 1536 1537static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) 1538{ 1539 return 0; 1540} 1541 1542static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) 1543{ 1544} 1545 1546#endif /* CONFIG_SECURITY_NETWORK_XFRM */ 1547 1548#ifdef CONFIG_SECURITY_PATH 1549int security_path_unlink(const struct path *dir, struct dentry *dentry); 1550int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); 1551int security_path_rmdir(const struct path *dir, struct dentry *dentry); 1552int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, 1553 unsigned int dev); 1554int security_path_truncate(const struct path *path); 1555int security_path_symlink(const struct path *dir, struct dentry *dentry, 1556 const char *old_name); 1557int security_path_link(struct dentry *old_dentry, const struct path *new_dir, 1558 struct dentry *new_dentry); 1559int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, 1560 const struct path *new_dir, struct dentry *new_dentry, 1561 unsigned int flags); 1562int security_path_chmod(const struct path *path, umode_t mode); 1563int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); 1564int security_path_chroot(const struct path *path); 1565#else /* CONFIG_SECURITY_PATH */ 1566static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) 1567{ 1568 return 0; 1569} 1570 1571static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, 1572 umode_t mode) 1573{ 1574 return 0; 1575} 1576 1577static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) 1578{ 1579 return 0; 1580} 1581 1582static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, 1583 umode_t mode, unsigned int dev) 1584{ 1585 return 0; 1586} 1587 1588static inline int security_path_truncate(const struct path *path) 1589{ 1590 return 0; 1591} 1592 1593static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, 1594 const char *old_name) 1595{ 1596 return 0; 1597} 1598 1599static inline int security_path_link(struct dentry *old_dentry, 1600 const struct path *new_dir, 1601 struct dentry *new_dentry) 1602{ 1603 return 0; 1604} 1605 1606static inline int security_path_rename(const struct path *old_dir, 1607 struct dentry *old_dentry, 1608 const struct path *new_dir, 1609 struct dentry *new_dentry, 1610 unsigned int flags) 1611{ 1612 return 0; 1613} 1614 1615static inline int security_path_chmod(const struct path *path, umode_t mode) 1616{ 1617 return 0; 1618} 1619 1620static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) 1621{ 1622 return 0; 1623} 1624 1625static inline int security_path_chroot(const struct path *path) 1626{ 1627 return 0; 1628} 1629#endif /* CONFIG_SECURITY_PATH */ 1630 1631#ifdef CONFIG_KEYS 1632#ifdef CONFIG_SECURITY 1633 1634int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); 1635void security_key_free(struct key *key); 1636int security_key_permission(key_ref_t key_ref, 1637 const struct cred *cred, unsigned perm); 1638int security_key_getsecurity(struct key *key, char **_buffer); 1639 1640#else 1641 1642static inline int security_key_alloc(struct key *key, 1643 const struct cred *cred, 1644 unsigned long flags) 1645{ 1646 return 0; 1647} 1648 1649static inline void security_key_free(struct key *key) 1650{ 1651} 1652 1653static inline int security_key_permission(key_ref_t key_ref, 1654 const struct cred *cred, 1655 unsigned perm) 1656{ 1657 return 0; 1658} 1659 1660static inline int security_key_getsecurity(struct key *key, char **_buffer) 1661{ 1662 *_buffer = NULL; 1663 return 0; 1664} 1665 1666#endif 1667#endif /* CONFIG_KEYS */ 1668 1669#ifdef CONFIG_AUDIT 1670#ifdef CONFIG_SECURITY 1671int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule); 1672int security_audit_rule_known(struct audit_krule *krule); 1673int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, 1674 struct audit_context *actx); 1675void security_audit_rule_free(void *lsmrule); 1676 1677#else 1678 1679static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, 1680 void **lsmrule) 1681{ 1682 return 0; 1683} 1684 1685static inline int security_audit_rule_known(struct audit_krule *krule) 1686{ 1687 return 0; 1688} 1689 1690static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, 1691 void *lsmrule, struct audit_context *actx) 1692{ 1693 return 0; 1694} 1695 1696static inline void security_audit_rule_free(void *lsmrule) 1697{ } 1698 1699#endif /* CONFIG_SECURITY */ 1700#endif /* CONFIG_AUDIT */ 1701 1702#ifdef CONFIG_SECURITYFS 1703 1704extern struct dentry *securityfs_create_file(const char *name, umode_t mode, 1705 struct dentry *parent, void *data, 1706 const struct file_operations *fops); 1707extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); 1708struct dentry *securityfs_create_symlink(const char *name, 1709 struct dentry *parent, 1710 const char *target, 1711 const struct inode_operations *iops); 1712extern void securityfs_remove(struct dentry *dentry); 1713 1714#else /* CONFIG_SECURITYFS */ 1715 1716static inline struct dentry *securityfs_create_dir(const char *name, 1717 struct dentry *parent) 1718{ 1719 return ERR_PTR(-ENODEV); 1720} 1721 1722static inline struct dentry *securityfs_create_file(const char *name, 1723 umode_t mode, 1724 struct dentry *parent, 1725 void *data, 1726 const struct file_operations *fops) 1727{ 1728 return ERR_PTR(-ENODEV); 1729} 1730 1731static inline struct dentry *securityfs_create_symlink(const char *name, 1732 struct dentry *parent, 1733 const char *target, 1734 const struct inode_operations *iops) 1735{ 1736 return ERR_PTR(-ENODEV); 1737} 1738 1739static inline void securityfs_remove(struct dentry *dentry) 1740{} 1741 1742#endif 1743 1744#ifdef CONFIG_SECURITY 1745 1746static inline char *alloc_secdata(void) 1747{ 1748 return (char *)get_zeroed_page(GFP_KERNEL); 1749} 1750 1751static inline void free_secdata(void *secdata) 1752{ 1753 free_page((unsigned long)secdata); 1754} 1755 1756#else 1757 1758static inline char *alloc_secdata(void) 1759{ 1760 return (char *)1; 1761} 1762 1763static inline void free_secdata(void *secdata) 1764{ } 1765#endif /* CONFIG_SECURITY */ 1766 1767#endif /* ! __LINUX_SECURITY_H */ 1768