8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 * Copyright (C) 2016 Mellanox Techonologies
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.
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.
23 #ifndef __LINUX_SECURITY_H
24 #define __LINUX_SECURITY_H
26 #include <linux/key.h>
27 #include <linux/capability.h>
29 #include <linux/slab.h>
30 #include <linux/err.h>
31 #include <linux/string.h>
52 struct file_operations;
60 /* If capable should audit the security request */
61 #define SECURITY_CAP_NOAUDIT 0
62 #define SECURITY_CAP_AUDIT 1
64 /* LSM Agnostic defines for sb_set_mnt_opts */
65 #define SECURITY_LSM_NATIVE_LABELS 1
69 struct user_namespace;
76 /* These functions are in security/commoncap.c */
77 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
79 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
80 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
81 extern int cap_ptrace_traceme(struct task_struct *parent);
82 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
83 extern 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);
87 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
88 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
89 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
90 const void *value, size_t size, int flags);
91 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
92 extern int cap_inode_need_killpriv(struct dentry *dentry);
93 extern int cap_inode_killpriv(struct dentry *dentry);
94 extern int cap_mmap_addr(unsigned long addr);
95 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
96 unsigned long prot, unsigned long flags);
97 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
98 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
99 unsigned long arg4, unsigned long arg5);
100 extern int cap_task_setscheduler(struct task_struct *p);
101 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
102 extern int cap_task_setnice(struct task_struct *p, int nice);
103 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
112 struct xfrm_selector;
115 struct xfrm_user_sec_ctx;
119 extern unsigned long mmap_min_addr;
120 extern unsigned long dac_mmap_min_addr;
122 #define mmap_min_addr 0UL
123 #define dac_mmap_min_addr 0UL
127 * Values used in the task_security_ops calls
129 /* setuid or setgid, id0 == uid or gid */
130 #define LSM_SETID_ID 1
132 /* setreuid or setregid, id0 == real, id1 == eff */
133 #define LSM_SETID_RE 2
135 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
136 #define LSM_SETID_RES 4
138 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
139 #define LSM_SETID_FS 8
141 /* Flags for security_task_prlimit(). */
142 #define LSM_PRLIMIT_READ 1
143 #define LSM_PRLIMIT_WRITE 2
145 /* forward declares to avoid warnings */
149 /* bprm->unsafe reasons */
150 #define LSM_UNSAFE_SHARE 1
151 #define LSM_UNSAFE_PTRACE 2
152 #define LSM_UNSAFE_NO_NEW_PRIVS 4
155 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
156 void __user *buffer, size_t *lenp, loff_t *ppos);
159 /* security_inode_init_security callback function to write xattrs */
160 typedef int (*initxattrs) (struct inode *inode,
161 const struct xattr *xattr_array, void *fs_data);
163 #ifdef CONFIG_SECURITY
165 struct security_mnt_opts {
171 int call_lsm_notifier(enum lsm_event event, void *data);
172 int register_lsm_notifier(struct notifier_block *nb);
173 int unregister_lsm_notifier(struct notifier_block *nb);
175 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
177 opts->mnt_opts = NULL;
178 opts->mnt_opts_flags = NULL;
179 opts->num_mnt_opts = 0;
182 static inline void security_free_mnt_opts(struct security_mnt_opts *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;
196 extern int security_init(void);
198 /* Security operations */
199 int security_binder_set_context_mgr(struct task_struct *mgr);
200 int security_binder_transaction(struct task_struct *from,
201 struct task_struct *to);
202 int security_binder_transfer_binder(struct task_struct *from,
203 struct task_struct *to);
204 int security_binder_transfer_file(struct task_struct *from,
205 struct task_struct *to, struct file *file);
206 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
207 int security_ptrace_traceme(struct task_struct *parent);
208 int security_capget(struct task_struct *target,
209 kernel_cap_t *effective,
210 kernel_cap_t *inheritable,
211 kernel_cap_t *permitted);
212 int 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);
216 int security_capable(const struct cred *cred, struct user_namespace *ns,
218 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
220 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
221 int security_quota_on(struct dentry *dentry);
222 int security_syslog(int type);
223 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
224 static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
226 struct timespec64 ts64 = timespec_to_timespec64(*ts);
228 return security_settime64(&ts64, tz);
230 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
231 int security_bprm_set_creds(struct linux_binprm *bprm);
232 int security_bprm_check(struct linux_binprm *bprm);
233 void security_bprm_committing_creds(struct linux_binprm *bprm);
234 void security_bprm_committed_creds(struct linux_binprm *bprm);
235 int security_bprm_secureexec(struct linux_binprm *bprm);
236 int security_sb_alloc(struct super_block *sb);
237 void security_sb_free(struct super_block *sb);
238 int security_sb_copy_data(char *orig, char *copy);
239 int security_sb_remount(struct super_block *sb, void *data);
240 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
241 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
242 int security_sb_statfs(struct dentry *dentry);
243 int security_sb_mount(const char *dev_name, const struct path *path,
244 const char *type, unsigned long flags, void *data);
245 int security_sb_umount(struct vfsmount *mnt, int flags);
246 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
247 int 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);
251 int 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);
255 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
256 int security_dentry_init_security(struct dentry *dentry, int mode,
257 const struct qstr *name, void **ctx,
259 int security_dentry_create_files_as(struct dentry *dentry, int mode,
261 const struct cred *old,
264 int security_inode_alloc(struct inode *inode);
265 void security_inode_free(struct inode *inode);
266 int security_inode_init_security(struct inode *inode, struct inode *dir,
267 const struct qstr *qstr,
268 initxattrs initxattrs, void *fs_data);
269 int 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);
272 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
273 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
274 struct dentry *new_dentry);
275 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
276 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
277 const char *old_name);
278 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
279 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
280 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
281 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
282 struct inode *new_dir, struct dentry *new_dentry,
284 int security_inode_readlink(struct dentry *dentry);
285 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
287 int security_inode_permission(struct inode *inode, int mask);
288 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
289 int security_inode_getattr(const struct path *path);
290 int security_inode_setxattr(struct dentry *dentry, const char *name,
291 const void *value, size_t size, int flags);
292 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
293 const void *value, size_t size, int flags);
294 int security_inode_getxattr(struct dentry *dentry, const char *name);
295 int security_inode_listxattr(struct dentry *dentry);
296 int security_inode_removexattr(struct dentry *dentry, const char *name);
297 int security_inode_need_killpriv(struct dentry *dentry);
298 int security_inode_killpriv(struct dentry *dentry);
299 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
300 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
301 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
302 void security_inode_getsecid(struct inode *inode, u32 *secid);
303 int security_inode_copy_up(struct dentry *src, struct cred **new);
304 int security_inode_copy_up_xattr(const char *name);
305 int security_file_permission(struct file *file, int mask);
306 int security_file_alloc(struct file *file);
307 void security_file_free(struct file *file);
308 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
309 int security_mmap_file(struct file *file, unsigned long prot,
310 unsigned long flags);
311 int security_mmap_addr(unsigned long addr);
312 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
314 int security_file_lock(struct file *file, unsigned int cmd);
315 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
316 void security_file_set_fowner(struct file *file);
317 int security_file_send_sigiotask(struct task_struct *tsk,
318 struct fown_struct *fown, int sig);
319 int security_file_receive(struct file *file);
320 int security_file_open(struct file *file, const struct cred *cred);
321 int security_task_create(unsigned long clone_flags);
322 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
323 void security_task_free(struct task_struct *task);
324 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
325 void security_cred_free(struct cred *cred);
326 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
327 void security_transfer_creds(struct cred *new, const struct cred *old);
328 int security_kernel_act_as(struct cred *new, u32 secid);
329 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
330 int security_kernel_module_request(char *kmod_name);
331 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
332 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
333 enum kernel_read_file_id id);
334 int security_task_fix_setuid(struct cred *new, const struct cred *old,
336 int security_task_setpgid(struct task_struct *p, pid_t pgid);
337 int security_task_getpgid(struct task_struct *p);
338 int security_task_getsid(struct task_struct *p);
339 void security_task_getsecid(struct task_struct *p, u32 *secid);
340 int security_task_setnice(struct task_struct *p, int nice);
341 int security_task_setioprio(struct task_struct *p, int ioprio);
342 int security_task_getioprio(struct task_struct *p);
343 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
345 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
346 struct rlimit *new_rlim);
347 int security_task_setscheduler(struct task_struct *p);
348 int security_task_getscheduler(struct task_struct *p);
349 int security_task_movememory(struct task_struct *p);
350 int security_task_kill(struct task_struct *p, struct siginfo *info,
352 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
353 unsigned long arg4, unsigned long arg5);
354 void security_task_to_inode(struct task_struct *p, struct inode *inode);
355 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
356 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
357 int security_msg_msg_alloc(struct msg_msg *msg);
358 void security_msg_msg_free(struct msg_msg *msg);
359 int security_msg_queue_alloc(struct msg_queue *msq);
360 void security_msg_queue_free(struct msg_queue *msq);
361 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
362 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
363 int security_msg_queue_msgsnd(struct msg_queue *msq,
364 struct msg_msg *msg, int msqflg);
365 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
366 struct task_struct *target, long type, int mode);
367 int security_shm_alloc(struct shmid_kernel *shp);
368 void security_shm_free(struct shmid_kernel *shp);
369 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
370 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
371 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
372 int security_sem_alloc(struct sem_array *sma);
373 void security_sem_free(struct sem_array *sma);
374 int security_sem_associate(struct sem_array *sma, int semflg);
375 int security_sem_semctl(struct sem_array *sma, int cmd);
376 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
377 unsigned nsops, int alter);
378 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
379 int security_getprocattr(struct task_struct *p, char *name, char **value);
380 int security_setprocattr(const char *name, void *value, size_t size);
381 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
382 int security_ismaclabel(const char *name);
383 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
384 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
385 void security_release_secctx(char *secdata, u32 seclen);
387 void security_inode_invalidate_secctx(struct inode *inode);
388 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
389 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
390 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
391 #else /* CONFIG_SECURITY */
392 struct security_mnt_opts {
395 static inline int call_lsm_notifier(enum lsm_event event, void *data)
400 static inline int register_lsm_notifier(struct notifier_block *nb)
405 static inline int unregister_lsm_notifier(struct notifier_block *nb)
410 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
414 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
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.
423 static inline int security_init(void)
428 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
433 static inline int security_binder_transaction(struct task_struct *from,
434 struct task_struct *to)
439 static inline int security_binder_transfer_binder(struct task_struct *from,
440 struct task_struct *to)
445 static inline int security_binder_transfer_file(struct task_struct *from,
446 struct task_struct *to,
452 static inline int security_ptrace_access_check(struct task_struct *child,
455 return cap_ptrace_access_check(child, mode);
458 static inline int security_ptrace_traceme(struct task_struct *parent)
460 return cap_ptrace_traceme(parent);
463 static inline int security_capget(struct task_struct *target,
464 kernel_cap_t *effective,
465 kernel_cap_t *inheritable,
466 kernel_cap_t *permitted)
468 return cap_capget(target, effective, inheritable, permitted);
471 static 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)
477 return cap_capset(new, old, effective, inheritable, permitted);
480 static inline int security_capable(const struct cred *cred,
481 struct user_namespace *ns, int cap)
483 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
486 static 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);
491 static inline int security_quotactl(int cmds, int type, int id,
492 struct super_block *sb)
497 static inline int security_quota_on(struct dentry *dentry)
502 static inline int security_syslog(int type)
507 static inline int security_settime64(const struct timespec64 *ts,
508 const struct timezone *tz)
510 return cap_settime(ts, tz);
513 static inline int security_settime(const struct timespec *ts,
514 const struct timezone *tz)
516 struct timespec64 ts64 = timespec_to_timespec64(*ts);
518 return cap_settime(&ts64, tz);
521 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
523 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
526 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
528 return cap_bprm_set_creds(bprm);
531 static inline int security_bprm_check(struct linux_binprm *bprm)
536 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
540 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
544 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
546 return cap_bprm_secureexec(bprm);
549 static inline int security_sb_alloc(struct super_block *sb)
554 static inline void security_sb_free(struct super_block *sb)
557 static inline int security_sb_copy_data(char *orig, char *copy)
562 static inline int security_sb_remount(struct super_block *sb, void *data)
567 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
572 static inline int security_sb_show_options(struct seq_file *m,
573 struct super_block *sb)
578 static inline int security_sb_statfs(struct dentry *dentry)
583 static inline int security_sb_mount(const char *dev_name, const struct path *path,
584 const char *type, unsigned long flags,
590 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
595 static inline int security_sb_pivotroot(const struct path *old_path,
596 const struct path *new_path)
601 static 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)
609 static 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)
617 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
622 static inline int security_inode_alloc(struct inode *inode)
627 static inline void security_inode_free(struct inode *inode)
630 static inline int security_dentry_init_security(struct dentry *dentry,
632 const struct qstr *name,
639 static inline int security_dentry_create_files_as(struct dentry *dentry,
640 int mode, struct qstr *name,
641 const struct cred *old,
648 static inline int security_inode_init_security(struct inode *inode,
650 const struct qstr *qstr,
651 const initxattrs xattrs,
657 static inline int security_old_inode_init_security(struct inode *inode,
659 const struct qstr *qstr,
661 void **value, size_t *len)
666 static inline int security_inode_create(struct inode *dir,
667 struct dentry *dentry,
673 static inline int security_inode_link(struct dentry *old_dentry,
675 struct dentry *new_dentry)
680 static inline int security_inode_unlink(struct inode *dir,
681 struct dentry *dentry)
686 static inline int security_inode_symlink(struct inode *dir,
687 struct dentry *dentry,
688 const char *old_name)
693 static inline int security_inode_mkdir(struct inode *dir,
694 struct dentry *dentry,
700 static inline int security_inode_rmdir(struct inode *dir,
701 struct dentry *dentry)
706 static inline int security_inode_mknod(struct inode *dir,
707 struct dentry *dentry,
713 static inline int security_inode_rename(struct inode *old_dir,
714 struct dentry *old_dentry,
715 struct inode *new_dir,
716 struct dentry *new_dentry,
722 static inline int security_inode_readlink(struct dentry *dentry)
727 static inline int security_inode_follow_link(struct dentry *dentry,
734 static inline int security_inode_permission(struct inode *inode, int mask)
739 static inline int security_inode_setattr(struct dentry *dentry,
745 static inline int security_inode_getattr(const struct path *path)
750 static inline int security_inode_setxattr(struct dentry *dentry,
751 const char *name, const void *value, size_t size, int flags)
753 return cap_inode_setxattr(dentry, name, value, size, flags);
756 static inline void security_inode_post_setxattr(struct dentry *dentry,
757 const char *name, const void *value, size_t size, int flags)
760 static inline int security_inode_getxattr(struct dentry *dentry,
766 static inline int security_inode_listxattr(struct dentry *dentry)
771 static inline int security_inode_removexattr(struct dentry *dentry,
774 return cap_inode_removexattr(dentry, name);
777 static inline int security_inode_need_killpriv(struct dentry *dentry)
779 return cap_inode_need_killpriv(dentry);
782 static inline int security_inode_killpriv(struct dentry *dentry)
784 return cap_inode_killpriv(dentry);
787 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
792 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
797 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
802 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
807 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
812 static inline int security_inode_copy_up_xattr(const char *name)
817 static inline int security_file_permission(struct file *file, int mask)
822 static inline int security_file_alloc(struct file *file)
827 static inline void security_file_free(struct file *file)
830 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
836 static inline int security_mmap_file(struct file *file, unsigned long prot,
842 static inline int security_mmap_addr(unsigned long addr)
844 return cap_mmap_addr(addr);
847 static inline int security_file_mprotect(struct vm_area_struct *vma,
848 unsigned long reqprot,
854 static inline int security_file_lock(struct file *file, unsigned int cmd)
859 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
865 static inline void security_file_set_fowner(struct file *file)
870 static inline int security_file_send_sigiotask(struct task_struct *tsk,
871 struct fown_struct *fown,
877 static inline int security_file_receive(struct file *file)
882 static inline int security_file_open(struct file *file,
883 const struct cred *cred)
888 static inline int security_task_create(unsigned long clone_flags)
893 static inline int security_task_alloc(struct task_struct *task,
894 unsigned long clone_flags)
899 static inline void security_task_free(struct task_struct *task)
902 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
907 static inline void security_cred_free(struct cred *cred)
910 static inline int security_prepare_creds(struct cred *new,
911 const struct cred *old,
917 static inline void security_transfer_creds(struct cred *new,
918 const struct cred *old)
922 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
927 static inline int security_kernel_create_files_as(struct cred *cred,
933 static inline int security_kernel_module_request(char *kmod_name)
938 static inline int security_kernel_read_file(struct file *file,
939 enum kernel_read_file_id id)
944 static inline int security_kernel_post_read_file(struct file *file,
945 char *buf, loff_t size,
946 enum kernel_read_file_id id)
951 static inline int security_task_fix_setuid(struct cred *new,
952 const struct cred *old,
955 return cap_task_fix_setuid(new, old, flags);
958 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
963 static inline int security_task_getpgid(struct task_struct *p)
968 static inline int security_task_getsid(struct task_struct *p)
973 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
978 static inline int security_task_setnice(struct task_struct *p, int nice)
980 return cap_task_setnice(p, nice);
983 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
985 return cap_task_setioprio(p, ioprio);
988 static inline int security_task_getioprio(struct task_struct *p)
993 static inline int security_task_prlimit(const struct cred *cred,
994 const struct cred *tcred,
1000 static inline int security_task_setrlimit(struct task_struct *p,
1001 unsigned int resource,
1002 struct rlimit *new_rlim)
1007 static inline int security_task_setscheduler(struct task_struct *p)
1009 return cap_task_setscheduler(p);
1012 static inline int security_task_getscheduler(struct task_struct *p)
1017 static inline int security_task_movememory(struct task_struct *p)
1022 static inline int security_task_kill(struct task_struct *p,
1023 struct siginfo *info, int sig,
1029 static inline int security_task_prctl(int option, unsigned long arg2,
1034 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1037 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1040 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1046 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1051 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1056 static inline void security_msg_msg_free(struct msg_msg *msg)
1059 static inline int security_msg_queue_alloc(struct msg_queue *msq)
1064 static inline void security_msg_queue_free(struct msg_queue *msq)
1067 static inline int security_msg_queue_associate(struct msg_queue *msq,
1073 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1078 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1079 struct msg_msg *msg, int msqflg)
1084 static 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)
1092 static inline int security_shm_alloc(struct shmid_kernel *shp)
1097 static inline void security_shm_free(struct shmid_kernel *shp)
1100 static inline int security_shm_associate(struct shmid_kernel *shp,
1106 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1111 static inline int security_shm_shmat(struct shmid_kernel *shp,
1112 char __user *shmaddr, int shmflg)
1117 static inline int security_sem_alloc(struct sem_array *sma)
1122 static inline void security_sem_free(struct sem_array *sma)
1125 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1130 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1135 static inline int security_sem_semop(struct sem_array *sma,
1136 struct sembuf *sops, unsigned nsops,
1142 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1145 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1150 static inline int security_setprocattr(char *name, void *value, size_t size)
1155 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1160 static inline int security_ismaclabel(const char *name)
1165 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1170 static inline int security_secctx_to_secid(const char *secdata,
1177 static inline void security_release_secctx(char *secdata, u32 seclen)
1181 static inline void security_inode_invalidate_secctx(struct inode *inode)
1185 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1189 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1193 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1197 #endif /* CONFIG_SECURITY */
1199 #ifdef CONFIG_SECURITY_NETWORK
1201 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1202 int security_unix_may_send(struct socket *sock, struct socket *other);
1203 int security_socket_create(int family, int type, int protocol, int kern);
1204 int security_socket_post_create(struct socket *sock, int family,
1205 int type, int protocol, int kern);
1206 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1207 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1208 int security_socket_listen(struct socket *sock, int backlog);
1209 int security_socket_accept(struct socket *sock, struct socket *newsock);
1210 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1211 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1212 int size, int flags);
1213 int security_socket_getsockname(struct socket *sock);
1214 int security_socket_getpeername(struct socket *sock);
1215 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1216 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1217 int security_socket_shutdown(struct socket *sock, int how);
1218 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1219 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1220 int __user *optlen, unsigned len);
1221 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1222 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1223 void security_sk_free(struct sock *sk);
1224 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1225 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1226 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1227 void security_sock_graft(struct sock*sk, struct socket *parent);
1228 int security_inet_conn_request(struct sock *sk,
1229 struct sk_buff *skb, struct request_sock *req);
1230 void security_inet_csk_clone(struct sock *newsk,
1231 const struct request_sock *req);
1232 void security_inet_conn_established(struct sock *sk,
1233 struct sk_buff *skb);
1234 int security_secmark_relabel_packet(u32 secid);
1235 void security_secmark_refcount_inc(void);
1236 void security_secmark_refcount_dec(void);
1237 int security_tun_dev_alloc_security(void **security);
1238 void security_tun_dev_free_security(void *security);
1239 int security_tun_dev_create(void);
1240 int security_tun_dev_attach_queue(void *security);
1241 int security_tun_dev_attach(struct sock *sk, void *security);
1242 int security_tun_dev_open(void *security);
1244 #else /* CONFIG_SECURITY_NETWORK */
1245 static inline int security_unix_stream_connect(struct sock *sock,
1252 static inline int security_unix_may_send(struct socket *sock,
1253 struct socket *other)
1258 static inline int security_socket_create(int family, int type,
1259 int protocol, int kern)
1264 static inline int security_socket_post_create(struct socket *sock,
1267 int protocol, int kern)
1272 static inline int security_socket_bind(struct socket *sock,
1273 struct sockaddr *address,
1279 static inline int security_socket_connect(struct socket *sock,
1280 struct sockaddr *address,
1286 static inline int security_socket_listen(struct socket *sock, int backlog)
1291 static inline int security_socket_accept(struct socket *sock,
1292 struct socket *newsock)
1297 static inline int security_socket_sendmsg(struct socket *sock,
1298 struct msghdr *msg, int size)
1303 static inline int security_socket_recvmsg(struct socket *sock,
1304 struct msghdr *msg, int size,
1310 static inline int security_socket_getsockname(struct socket *sock)
1315 static inline int security_socket_getpeername(struct socket *sock)
1320 static inline int security_socket_getsockopt(struct socket *sock,
1321 int level, int optname)
1326 static inline int security_socket_setsockopt(struct socket *sock,
1327 int level, int optname)
1332 static inline int security_socket_shutdown(struct socket *sock, int how)
1336 static inline int security_sock_rcv_skb(struct sock *sk,
1337 struct sk_buff *skb)
1342 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1343 int __user *optlen, unsigned len)
1345 return -ENOPROTOOPT;
1348 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1350 return -ENOPROTOOPT;
1353 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1358 static inline void security_sk_free(struct sock *sk)
1362 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1366 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1370 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1374 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1378 static inline int security_inet_conn_request(struct sock *sk,
1379 struct sk_buff *skb, struct request_sock *req)
1384 static inline void security_inet_csk_clone(struct sock *newsk,
1385 const struct request_sock *req)
1389 static inline void security_inet_conn_established(struct sock *sk,
1390 struct sk_buff *skb)
1394 static inline int security_secmark_relabel_packet(u32 secid)
1399 static inline void security_secmark_refcount_inc(void)
1403 static inline void security_secmark_refcount_dec(void)
1407 static inline int security_tun_dev_alloc_security(void **security)
1412 static inline void security_tun_dev_free_security(void *security)
1416 static inline int security_tun_dev_create(void)
1421 static inline int security_tun_dev_attach_queue(void *security)
1426 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1431 static inline int security_tun_dev_open(void *security)
1435 #endif /* CONFIG_SECURITY_NETWORK */
1437 #ifdef CONFIG_SECURITY_INFINIBAND
1438 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1439 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1440 int security_ib_alloc_security(void **sec);
1441 void security_ib_free_security(void *sec);
1442 #else /* CONFIG_SECURITY_INFINIBAND */
1443 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1448 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1453 static inline int security_ib_alloc_security(void **sec)
1458 static inline void security_ib_free_security(void *sec)
1461 #endif /* CONFIG_SECURITY_INFINIBAND */
1463 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1465 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1466 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1467 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1468 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1469 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1470 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1471 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1472 struct xfrm_sec_ctx *polsec, u32 secid);
1473 int security_xfrm_state_delete(struct xfrm_state *x);
1474 void security_xfrm_state_free(struct xfrm_state *x);
1475 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1476 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1477 struct xfrm_policy *xp,
1478 const struct flowi *fl);
1479 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1480 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1482 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1484 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1485 struct xfrm_user_sec_ctx *sec_ctx,
1491 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1496 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1500 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1505 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1506 struct xfrm_user_sec_ctx *sec_ctx)
1511 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1512 struct xfrm_sec_ctx *polsec, u32 secid)
1517 static inline void security_xfrm_state_free(struct xfrm_state *x)
1521 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1526 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1531 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1532 struct xfrm_policy *xp, const struct flowi *fl)
1537 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1542 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1546 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1548 #ifdef CONFIG_SECURITY_PATH
1549 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1550 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1551 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1552 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1554 int security_path_truncate(const struct path *path);
1555 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1556 const char *old_name);
1557 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1558 struct dentry *new_dentry);
1559 int 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);
1562 int security_path_chmod(const struct path *path, umode_t mode);
1563 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1564 int security_path_chroot(const struct path *path);
1565 #else /* CONFIG_SECURITY_PATH */
1566 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1571 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1577 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1582 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1583 umode_t mode, unsigned int dev)
1588 static inline int security_path_truncate(const struct path *path)
1593 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1594 const char *old_name)
1599 static inline int security_path_link(struct dentry *old_dentry,
1600 const struct path *new_dir,
1601 struct dentry *new_dentry)
1606 static 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,
1615 static inline int security_path_chmod(const struct path *path, umode_t mode)
1620 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1625 static inline int security_path_chroot(const struct path *path)
1629 #endif /* CONFIG_SECURITY_PATH */
1632 #ifdef CONFIG_SECURITY
1634 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1635 void security_key_free(struct key *key);
1636 int security_key_permission(key_ref_t key_ref,
1637 const struct cred *cred, unsigned perm);
1638 int security_key_getsecurity(struct key *key, char **_buffer);
1642 static inline int security_key_alloc(struct key *key,
1643 const struct cred *cred,
1644 unsigned long flags)
1649 static inline void security_key_free(struct key *key)
1653 static inline int security_key_permission(key_ref_t key_ref,
1654 const struct cred *cred,
1660 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1667 #endif /* CONFIG_KEYS */
1670 #ifdef CONFIG_SECURITY
1671 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1672 int security_audit_rule_known(struct audit_krule *krule);
1673 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1674 struct audit_context *actx);
1675 void security_audit_rule_free(void *lsmrule);
1679 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1685 static inline int security_audit_rule_known(struct audit_krule *krule)
1690 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1691 void *lsmrule, struct audit_context *actx)
1696 static inline void security_audit_rule_free(void *lsmrule)
1699 #endif /* CONFIG_SECURITY */
1700 #endif /* CONFIG_AUDIT */
1702 #ifdef CONFIG_SECURITYFS
1704 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1705 struct dentry *parent, void *data,
1706 const struct file_operations *fops);
1707 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1708 struct dentry *securityfs_create_symlink(const char *name,
1709 struct dentry *parent,
1711 const struct inode_operations *iops);
1712 extern void securityfs_remove(struct dentry *dentry);
1714 #else /* CONFIG_SECURITYFS */
1716 static inline struct dentry *securityfs_create_dir(const char *name,
1717 struct dentry *parent)
1719 return ERR_PTR(-ENODEV);
1722 static inline struct dentry *securityfs_create_file(const char *name,
1724 struct dentry *parent,
1726 const struct file_operations *fops)
1728 return ERR_PTR(-ENODEV);
1731 static inline struct dentry *securityfs_create_symlink(const char *name,
1732 struct dentry *parent,
1734 const struct inode_operations *iops)
1736 return ERR_PTR(-ENODEV);
1739 static inline void securityfs_remove(struct dentry *dentry)
1744 #ifdef CONFIG_SECURITY
1746 static inline char *alloc_secdata(void)
1748 return (char *)get_zeroed_page(GFP_KERNEL);
1751 static inline void free_secdata(void *secdata)
1753 free_page((unsigned long)secdata);
1758 static inline char *alloc_secdata(void)
1763 static inline void free_secdata(void *secdata)
1765 #endif /* CONFIG_SECURITY */
1767 #endif /* ! __LINUX_SECURITY_H */