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>
38 struct kernel_siginfo;
51 struct file_operations;
60 /* Default (no) options for the capable function */
61 #define CAP_OPT_NONE 0x0
62 /* If capable should audit the security request */
63 #define CAP_OPT_NOAUDIT BIT(1)
64 /* If capable is being called by a setid function */
65 #define CAP_OPT_INSETID BIT(2)
67 /* LSM Agnostic defines for fs_context::lsm_flags */
68 #define SECURITY_LSM_NATIVE_LABELS 1
72 struct user_namespace;
79 /* These functions are in security/commoncap.c */
80 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
81 int cap, unsigned int opts);
82 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
83 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
84 extern int cap_ptrace_traceme(struct task_struct *parent);
85 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
86 extern int cap_capset(struct cred *new, const struct cred *old,
87 const kernel_cap_t *effective,
88 const kernel_cap_t *inheritable,
89 const kernel_cap_t *permitted);
90 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
91 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
92 const void *value, size_t size, int flags);
93 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
94 extern int cap_inode_need_killpriv(struct dentry *dentry);
95 extern int cap_inode_killpriv(struct dentry *dentry);
96 extern int cap_inode_getsecurity(struct inode *inode, const char *name,
97 void **buffer, bool alloc);
98 extern int cap_mmap_addr(unsigned long addr);
99 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
100 unsigned long prot, unsigned long flags);
101 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
102 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
103 unsigned long arg4, unsigned long arg5);
104 extern int cap_task_setscheduler(struct task_struct *p);
105 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
106 extern int cap_task_setnice(struct task_struct *p, int nice);
107 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
116 struct xfrm_selector;
119 struct xfrm_user_sec_ctx;
121 struct sctp_endpoint;
124 extern unsigned long mmap_min_addr;
125 extern unsigned long dac_mmap_min_addr;
127 #define mmap_min_addr 0UL
128 #define dac_mmap_min_addr 0UL
132 * Values used in the task_security_ops calls
134 /* setuid or setgid, id0 == uid or gid */
135 #define LSM_SETID_ID 1
137 /* setreuid or setregid, id0 == real, id1 == eff */
138 #define LSM_SETID_RE 2
140 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
141 #define LSM_SETID_RES 4
143 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
144 #define LSM_SETID_FS 8
146 /* Flags for security_task_prlimit(). */
147 #define LSM_PRLIMIT_READ 1
148 #define LSM_PRLIMIT_WRITE 2
150 /* forward declares to avoid warnings */
154 /* bprm->unsafe reasons */
155 #define LSM_UNSAFE_SHARE 1
156 #define LSM_UNSAFE_PTRACE 2
157 #define LSM_UNSAFE_NO_NEW_PRIVS 4
160 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
161 void __user *buffer, size_t *lenp, loff_t *ppos);
164 /* security_inode_init_security callback function to write xattrs */
165 typedef int (*initxattrs) (struct inode *inode,
166 const struct xattr *xattr_array, void *fs_data);
169 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
170 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
171 #define __data_id_stringify(dummy, str) #str,
173 enum kernel_load_data_id {
174 __kernel_read_file_id(__data_id_enumify)
177 static const char * const kernel_load_data_str[] = {
178 __kernel_read_file_id(__data_id_stringify)
181 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
183 if ((unsigned)id >= LOADING_MAX_ID)
184 return kernel_load_data_str[LOADING_UNKNOWN];
186 return kernel_load_data_str[id];
189 #ifdef CONFIG_SECURITY
191 int call_lsm_notifier(enum lsm_event event, void *data);
192 int register_lsm_notifier(struct notifier_block *nb);
193 int unregister_lsm_notifier(struct notifier_block *nb);
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,
217 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 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
225 int security_bprm_set_creds(struct linux_binprm *bprm);
226 int security_bprm_check(struct linux_binprm *bprm);
227 void security_bprm_committing_creds(struct linux_binprm *bprm);
228 void security_bprm_committed_creds(struct linux_binprm *bprm);
229 int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
230 int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
231 int security_sb_alloc(struct super_block *sb);
232 void security_sb_free(struct super_block *sb);
233 void security_free_mnt_opts(void **mnt_opts);
234 int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
235 int security_sb_remount(struct super_block *sb, void *mnt_opts);
236 int security_sb_kern_mount(struct super_block *sb);
237 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
238 int security_sb_statfs(struct dentry *dentry);
239 int security_sb_mount(const char *dev_name, const struct path *path,
240 const char *type, unsigned long flags, void *data);
241 int security_sb_umount(struct vfsmount *mnt, int flags);
242 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
243 int security_sb_set_mnt_opts(struct super_block *sb,
245 unsigned long kern_flags,
246 unsigned long *set_kern_flags);
247 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
248 struct super_block *newsb,
249 unsigned long kern_flags,
250 unsigned long *set_kern_flags);
251 int security_add_mnt_opt(const char *option, const char *val,
252 int len, void **mnt_opts);
253 int security_dentry_init_security(struct dentry *dentry, int mode,
254 const struct qstr *name, void **ctx,
256 int security_dentry_create_files_as(struct dentry *dentry, int mode,
258 const struct cred *old,
261 int security_inode_alloc(struct inode *inode);
262 void security_inode_free(struct inode *inode);
263 int security_inode_init_security(struct inode *inode, struct inode *dir,
264 const struct qstr *qstr,
265 initxattrs initxattrs, void *fs_data);
266 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
267 const struct qstr *qstr, const char **name,
268 void **value, size_t *len);
269 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
270 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
271 struct dentry *new_dentry);
272 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
273 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
274 const char *old_name);
275 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
276 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
277 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
278 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
279 struct inode *new_dir, struct dentry *new_dentry,
281 int security_inode_readlink(struct dentry *dentry);
282 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
284 int security_inode_permission(struct inode *inode, int mask);
285 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
286 int security_inode_getattr(const struct path *path);
287 int security_inode_setxattr(struct dentry *dentry, const char *name,
288 const void *value, size_t size, int flags);
289 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
290 const void *value, size_t size, int flags);
291 int security_inode_getxattr(struct dentry *dentry, const char *name);
292 int security_inode_listxattr(struct dentry *dentry);
293 int security_inode_removexattr(struct dentry *dentry, const char *name);
294 int security_inode_need_killpriv(struct dentry *dentry);
295 int security_inode_killpriv(struct dentry *dentry);
296 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
297 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
298 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
299 void security_inode_getsecid(struct inode *inode, u32 *secid);
300 int security_inode_copy_up(struct dentry *src, struct cred **new);
301 int security_inode_copy_up_xattr(const char *name);
302 int security_file_permission(struct file *file, int mask);
303 int security_file_alloc(struct file *file);
304 void security_file_free(struct file *file);
305 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
306 int security_mmap_file(struct file *file, unsigned long prot,
307 unsigned long flags);
308 int security_mmap_addr(unsigned long addr);
309 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
311 int security_file_lock(struct file *file, unsigned int cmd);
312 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
313 void security_file_set_fowner(struct file *file);
314 int security_file_send_sigiotask(struct task_struct *tsk,
315 struct fown_struct *fown, int sig);
316 int security_file_receive(struct file *file);
317 int security_file_open(struct file *file);
318 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
319 void security_task_free(struct task_struct *task);
320 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
321 void security_cred_free(struct cred *cred);
322 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
323 void security_transfer_creds(struct cred *new, const struct cred *old);
324 void security_cred_getsecid(const struct cred *c, u32 *secid);
325 int security_kernel_act_as(struct cred *new, u32 secid);
326 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
327 int security_kernel_module_request(char *kmod_name);
328 int security_kernel_load_data(enum kernel_load_data_id id);
329 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
330 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
331 enum kernel_read_file_id id);
332 int security_task_fix_setuid(struct cred *new, const struct cred *old,
334 int security_task_setpgid(struct task_struct *p, pid_t pgid);
335 int security_task_getpgid(struct task_struct *p);
336 int security_task_getsid(struct task_struct *p);
337 void security_task_getsecid(struct task_struct *p, u32 *secid);
338 int security_task_setnice(struct task_struct *p, int nice);
339 int security_task_setioprio(struct task_struct *p, int ioprio);
340 int security_task_getioprio(struct task_struct *p);
341 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
343 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
344 struct rlimit *new_rlim);
345 int security_task_setscheduler(struct task_struct *p);
346 int security_task_getscheduler(struct task_struct *p);
347 int security_task_movememory(struct task_struct *p);
348 int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
349 int sig, const struct cred *cred);
350 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
351 unsigned long arg4, unsigned long arg5);
352 void security_task_to_inode(struct task_struct *p, struct inode *inode);
353 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
354 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
355 int security_msg_msg_alloc(struct msg_msg *msg);
356 void security_msg_msg_free(struct msg_msg *msg);
357 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
358 void security_msg_queue_free(struct kern_ipc_perm *msq);
359 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
360 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
361 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
362 struct msg_msg *msg, int msqflg);
363 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
364 struct task_struct *target, long type, int mode);
365 int security_shm_alloc(struct kern_ipc_perm *shp);
366 void security_shm_free(struct kern_ipc_perm *shp);
367 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
368 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
369 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
370 int security_sem_alloc(struct kern_ipc_perm *sma);
371 void security_sem_free(struct kern_ipc_perm *sma);
372 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
373 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
374 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
375 unsigned nsops, int alter);
376 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
377 int security_getprocattr(struct task_struct *p, const char *lsm, char *name,
379 int security_setprocattr(const char *lsm, const char *name, void *value,
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 */
393 static inline int call_lsm_notifier(enum lsm_event event, void *data)
398 static inline int register_lsm_notifier(struct notifier_block *nb)
403 static inline int unregister_lsm_notifier(struct notifier_block *nb)
408 static inline void security_free_mnt_opts(void **mnt_opts)
413 * This is the default capabilities functionality. Most of these functions
414 * are just stubbed out, but a few must call the proper capable code.
417 static inline int security_init(void)
422 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
427 static inline int security_binder_transaction(struct task_struct *from,
428 struct task_struct *to)
433 static inline int security_binder_transfer_binder(struct task_struct *from,
434 struct task_struct *to)
439 static inline int security_binder_transfer_file(struct task_struct *from,
440 struct task_struct *to,
446 static inline int security_ptrace_access_check(struct task_struct *child,
449 return cap_ptrace_access_check(child, mode);
452 static inline int security_ptrace_traceme(struct task_struct *parent)
454 return cap_ptrace_traceme(parent);
457 static inline int security_capget(struct task_struct *target,
458 kernel_cap_t *effective,
459 kernel_cap_t *inheritable,
460 kernel_cap_t *permitted)
462 return cap_capget(target, effective, inheritable, permitted);
465 static inline int security_capset(struct cred *new,
466 const struct cred *old,
467 const kernel_cap_t *effective,
468 const kernel_cap_t *inheritable,
469 const kernel_cap_t *permitted)
471 return cap_capset(new, old, effective, inheritable, permitted);
474 static inline int security_capable(const struct cred *cred,
475 struct user_namespace *ns,
479 return cap_capable(cred, ns, cap, opts);
482 static inline int security_quotactl(int cmds, int type, int id,
483 struct super_block *sb)
488 static inline int security_quota_on(struct dentry *dentry)
493 static inline int security_syslog(int type)
498 static inline int security_settime64(const struct timespec64 *ts,
499 const struct timezone *tz)
501 return cap_settime(ts, tz);
504 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
506 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
509 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
511 return cap_bprm_set_creds(bprm);
514 static inline int security_bprm_check(struct linux_binprm *bprm)
519 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
523 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
527 static inline int security_fs_context_dup(struct fs_context *fc,
528 struct fs_context *src_fc)
532 static inline int security_fs_context_parse_param(struct fs_context *fc,
533 struct fs_parameter *param)
538 static inline int security_sb_alloc(struct super_block *sb)
543 static inline void security_sb_free(struct super_block *sb)
546 static inline int security_sb_eat_lsm_opts(char *options,
552 static inline int security_sb_remount(struct super_block *sb,
558 static inline int security_sb_kern_mount(struct super_block *sb)
563 static inline int security_sb_show_options(struct seq_file *m,
564 struct super_block *sb)
569 static inline int security_sb_statfs(struct dentry *dentry)
574 static inline int security_sb_mount(const char *dev_name, const struct path *path,
575 const char *type, unsigned long flags,
581 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
586 static inline int security_sb_pivotroot(const struct path *old_path,
587 const struct path *new_path)
592 static inline int security_sb_set_mnt_opts(struct super_block *sb,
594 unsigned long kern_flags,
595 unsigned long *set_kern_flags)
600 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
601 struct super_block *newsb,
602 unsigned long kern_flags,
603 unsigned long *set_kern_flags)
608 static inline int security_add_mnt_opt(const char *option, const char *val,
609 int len, void **mnt_opts)
614 static inline int security_inode_alloc(struct inode *inode)
619 static inline void security_inode_free(struct inode *inode)
622 static inline int security_dentry_init_security(struct dentry *dentry,
624 const struct qstr *name,
631 static inline int security_dentry_create_files_as(struct dentry *dentry,
632 int mode, struct qstr *name,
633 const struct cred *old,
640 static inline int security_inode_init_security(struct inode *inode,
642 const struct qstr *qstr,
643 const initxattrs xattrs,
649 static inline int security_old_inode_init_security(struct inode *inode,
651 const struct qstr *qstr,
653 void **value, size_t *len)
658 static inline int security_inode_create(struct inode *dir,
659 struct dentry *dentry,
665 static inline int security_inode_link(struct dentry *old_dentry,
667 struct dentry *new_dentry)
672 static inline int security_inode_unlink(struct inode *dir,
673 struct dentry *dentry)
678 static inline int security_inode_symlink(struct inode *dir,
679 struct dentry *dentry,
680 const char *old_name)
685 static inline int security_inode_mkdir(struct inode *dir,
686 struct dentry *dentry,
692 static inline int security_inode_rmdir(struct inode *dir,
693 struct dentry *dentry)
698 static inline int security_inode_mknod(struct inode *dir,
699 struct dentry *dentry,
705 static inline int security_inode_rename(struct inode *old_dir,
706 struct dentry *old_dentry,
707 struct inode *new_dir,
708 struct dentry *new_dentry,
714 static inline int security_inode_readlink(struct dentry *dentry)
719 static inline int security_inode_follow_link(struct dentry *dentry,
726 static inline int security_inode_permission(struct inode *inode, int mask)
731 static inline int security_inode_setattr(struct dentry *dentry,
737 static inline int security_inode_getattr(const struct path *path)
742 static inline int security_inode_setxattr(struct dentry *dentry,
743 const char *name, const void *value, size_t size, int flags)
745 return cap_inode_setxattr(dentry, name, value, size, flags);
748 static inline void security_inode_post_setxattr(struct dentry *dentry,
749 const char *name, const void *value, size_t size, int flags)
752 static inline int security_inode_getxattr(struct dentry *dentry,
758 static inline int security_inode_listxattr(struct dentry *dentry)
763 static inline int security_inode_removexattr(struct dentry *dentry,
766 return cap_inode_removexattr(dentry, name);
769 static inline int security_inode_need_killpriv(struct dentry *dentry)
771 return cap_inode_need_killpriv(dentry);
774 static inline int security_inode_killpriv(struct dentry *dentry)
776 return cap_inode_killpriv(dentry);
779 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
784 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
789 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
794 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
799 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
804 static inline int security_inode_copy_up_xattr(const char *name)
809 static inline int security_file_permission(struct file *file, int mask)
814 static inline int security_file_alloc(struct file *file)
819 static inline void security_file_free(struct file *file)
822 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
828 static inline int security_mmap_file(struct file *file, unsigned long prot,
834 static inline int security_mmap_addr(unsigned long addr)
836 return cap_mmap_addr(addr);
839 static inline int security_file_mprotect(struct vm_area_struct *vma,
840 unsigned long reqprot,
846 static inline int security_file_lock(struct file *file, unsigned int cmd)
851 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
857 static inline void security_file_set_fowner(struct file *file)
862 static inline int security_file_send_sigiotask(struct task_struct *tsk,
863 struct fown_struct *fown,
869 static inline int security_file_receive(struct file *file)
874 static inline int security_file_open(struct file *file)
879 static inline int security_task_alloc(struct task_struct *task,
880 unsigned long clone_flags)
885 static inline void security_task_free(struct task_struct *task)
888 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
893 static inline void security_cred_free(struct cred *cred)
896 static inline int security_prepare_creds(struct cred *new,
897 const struct cred *old,
903 static inline void security_transfer_creds(struct cred *new,
904 const struct cred *old)
908 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
913 static inline int security_kernel_create_files_as(struct cred *cred,
919 static inline int security_kernel_module_request(char *kmod_name)
924 static inline int security_kernel_load_data(enum kernel_load_data_id id)
929 static inline int security_kernel_read_file(struct file *file,
930 enum kernel_read_file_id id)
935 static inline int security_kernel_post_read_file(struct file *file,
936 char *buf, loff_t size,
937 enum kernel_read_file_id id)
942 static inline int security_task_fix_setuid(struct cred *new,
943 const struct cred *old,
946 return cap_task_fix_setuid(new, old, flags);
949 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
954 static inline int security_task_getpgid(struct task_struct *p)
959 static inline int security_task_getsid(struct task_struct *p)
964 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
969 static inline int security_task_setnice(struct task_struct *p, int nice)
971 return cap_task_setnice(p, nice);
974 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
976 return cap_task_setioprio(p, ioprio);
979 static inline int security_task_getioprio(struct task_struct *p)
984 static inline int security_task_prlimit(const struct cred *cred,
985 const struct cred *tcred,
991 static inline int security_task_setrlimit(struct task_struct *p,
992 unsigned int resource,
993 struct rlimit *new_rlim)
998 static inline int security_task_setscheduler(struct task_struct *p)
1000 return cap_task_setscheduler(p);
1003 static inline int security_task_getscheduler(struct task_struct *p)
1008 static inline int security_task_movememory(struct task_struct *p)
1013 static inline int security_task_kill(struct task_struct *p,
1014 struct kernel_siginfo *info, int sig,
1015 const struct cred *cred)
1020 static inline int security_task_prctl(int option, unsigned long arg2,
1025 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1028 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1031 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1037 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1042 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1047 static inline void security_msg_msg_free(struct msg_msg *msg)
1050 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1055 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1058 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1064 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1069 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1070 struct msg_msg *msg, int msqflg)
1075 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1076 struct msg_msg *msg,
1077 struct task_struct *target,
1078 long type, int mode)
1083 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1088 static inline void security_shm_free(struct kern_ipc_perm *shp)
1091 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1097 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1102 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1103 char __user *shmaddr, int shmflg)
1108 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1113 static inline void security_sem_free(struct kern_ipc_perm *sma)
1116 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1121 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1126 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1127 struct sembuf *sops, unsigned nsops,
1133 static inline void security_d_instantiate(struct dentry *dentry,
1134 struct inode *inode)
1137 static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1138 char *name, char **value)
1143 static inline int security_setprocattr(const char *lsm, char *name,
1144 void *value, size_t size)
1149 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1154 static inline int security_ismaclabel(const char *name)
1159 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1164 static inline int security_secctx_to_secid(const char *secdata,
1171 static inline void security_release_secctx(char *secdata, u32 seclen)
1175 static inline void security_inode_invalidate_secctx(struct inode *inode)
1179 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1183 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1187 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1191 #endif /* CONFIG_SECURITY */
1193 #ifdef CONFIG_SECURITY_NETWORK
1195 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1196 int security_unix_may_send(struct socket *sock, struct socket *other);
1197 int security_socket_create(int family, int type, int protocol, int kern);
1198 int security_socket_post_create(struct socket *sock, int family,
1199 int type, int protocol, int kern);
1200 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1201 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1202 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1203 int security_socket_listen(struct socket *sock, int backlog);
1204 int security_socket_accept(struct socket *sock, struct socket *newsock);
1205 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1206 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1207 int size, int flags);
1208 int security_socket_getsockname(struct socket *sock);
1209 int security_socket_getpeername(struct socket *sock);
1210 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1211 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1212 int security_socket_shutdown(struct socket *sock, int how);
1213 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1214 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1215 int __user *optlen, unsigned len);
1216 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1217 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1218 void security_sk_free(struct sock *sk);
1219 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1220 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1221 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1222 void security_sock_graft(struct sock*sk, struct socket *parent);
1223 int security_inet_conn_request(struct sock *sk,
1224 struct sk_buff *skb, struct request_sock *req);
1225 void security_inet_csk_clone(struct sock *newsk,
1226 const struct request_sock *req);
1227 void security_inet_conn_established(struct sock *sk,
1228 struct sk_buff *skb);
1229 int security_secmark_relabel_packet(u32 secid);
1230 void security_secmark_refcount_inc(void);
1231 void security_secmark_refcount_dec(void);
1232 int security_tun_dev_alloc_security(void **security);
1233 void security_tun_dev_free_security(void *security);
1234 int security_tun_dev_create(void);
1235 int security_tun_dev_attach_queue(void *security);
1236 int security_tun_dev_attach(struct sock *sk, void *security);
1237 int security_tun_dev_open(void *security);
1238 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1239 int security_sctp_bind_connect(struct sock *sk, int optname,
1240 struct sockaddr *address, int addrlen);
1241 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1242 struct sock *newsk);
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_socketpair(struct socket *socka,
1273 struct socket *sockb)
1278 static inline int security_socket_bind(struct socket *sock,
1279 struct sockaddr *address,
1285 static inline int security_socket_connect(struct socket *sock,
1286 struct sockaddr *address,
1292 static inline int security_socket_listen(struct socket *sock, int backlog)
1297 static inline int security_socket_accept(struct socket *sock,
1298 struct socket *newsock)
1303 static inline int security_socket_sendmsg(struct socket *sock,
1304 struct msghdr *msg, int size)
1309 static inline int security_socket_recvmsg(struct socket *sock,
1310 struct msghdr *msg, int size,
1316 static inline int security_socket_getsockname(struct socket *sock)
1321 static inline int security_socket_getpeername(struct socket *sock)
1326 static inline int security_socket_getsockopt(struct socket *sock,
1327 int level, int optname)
1332 static inline int security_socket_setsockopt(struct socket *sock,
1333 int level, int optname)
1338 static inline int security_socket_shutdown(struct socket *sock, int how)
1342 static inline int security_sock_rcv_skb(struct sock *sk,
1343 struct sk_buff *skb)
1348 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1349 int __user *optlen, unsigned len)
1351 return -ENOPROTOOPT;
1354 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1356 return -ENOPROTOOPT;
1359 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1364 static inline void security_sk_free(struct sock *sk)
1368 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1372 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1376 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1380 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1384 static inline int security_inet_conn_request(struct sock *sk,
1385 struct sk_buff *skb, struct request_sock *req)
1390 static inline void security_inet_csk_clone(struct sock *newsk,
1391 const struct request_sock *req)
1395 static inline void security_inet_conn_established(struct sock *sk,
1396 struct sk_buff *skb)
1400 static inline int security_secmark_relabel_packet(u32 secid)
1405 static inline void security_secmark_refcount_inc(void)
1409 static inline void security_secmark_refcount_dec(void)
1413 static inline int security_tun_dev_alloc_security(void **security)
1418 static inline void security_tun_dev_free_security(void *security)
1422 static inline int security_tun_dev_create(void)
1427 static inline int security_tun_dev_attach_queue(void *security)
1432 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1437 static inline int security_tun_dev_open(void *security)
1442 static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1443 struct sk_buff *skb)
1448 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1449 struct sockaddr *address,
1455 static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1460 #endif /* CONFIG_SECURITY_NETWORK */
1462 #ifdef CONFIG_SECURITY_INFINIBAND
1463 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1464 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1465 int security_ib_alloc_security(void **sec);
1466 void security_ib_free_security(void *sec);
1467 #else /* CONFIG_SECURITY_INFINIBAND */
1468 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1473 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1478 static inline int security_ib_alloc_security(void **sec)
1483 static inline void security_ib_free_security(void *sec)
1486 #endif /* CONFIG_SECURITY_INFINIBAND */
1488 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1490 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1491 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1492 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1493 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1494 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1495 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1496 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1497 struct xfrm_sec_ctx *polsec, u32 secid);
1498 int security_xfrm_state_delete(struct xfrm_state *x);
1499 void security_xfrm_state_free(struct xfrm_state *x);
1500 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1501 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1502 struct xfrm_policy *xp,
1503 const struct flowi *fl);
1504 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1505 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1507 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1509 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1510 struct xfrm_user_sec_ctx *sec_ctx,
1516 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1521 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1525 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1530 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1531 struct xfrm_user_sec_ctx *sec_ctx)
1536 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1537 struct xfrm_sec_ctx *polsec, u32 secid)
1542 static inline void security_xfrm_state_free(struct xfrm_state *x)
1546 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1551 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1556 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1557 struct xfrm_policy *xp, const struct flowi *fl)
1562 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1567 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1571 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1573 #ifdef CONFIG_SECURITY_PATH
1574 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1575 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1576 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1577 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1579 int security_path_truncate(const struct path *path);
1580 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1581 const char *old_name);
1582 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1583 struct dentry *new_dentry);
1584 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1585 const struct path *new_dir, struct dentry *new_dentry,
1586 unsigned int flags);
1587 int security_path_chmod(const struct path *path, umode_t mode);
1588 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1589 int security_path_chroot(const struct path *path);
1590 #else /* CONFIG_SECURITY_PATH */
1591 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1596 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1602 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1607 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1608 umode_t mode, unsigned int dev)
1613 static inline int security_path_truncate(const struct path *path)
1618 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1619 const char *old_name)
1624 static inline int security_path_link(struct dentry *old_dentry,
1625 const struct path *new_dir,
1626 struct dentry *new_dentry)
1631 static inline int security_path_rename(const struct path *old_dir,
1632 struct dentry *old_dentry,
1633 const struct path *new_dir,
1634 struct dentry *new_dentry,
1640 static inline int security_path_chmod(const struct path *path, umode_t mode)
1645 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1650 static inline int security_path_chroot(const struct path *path)
1654 #endif /* CONFIG_SECURITY_PATH */
1657 #ifdef CONFIG_SECURITY
1659 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1660 void security_key_free(struct key *key);
1661 int security_key_permission(key_ref_t key_ref,
1662 const struct cred *cred, unsigned perm);
1663 int security_key_getsecurity(struct key *key, char **_buffer);
1667 static inline int security_key_alloc(struct key *key,
1668 const struct cred *cred,
1669 unsigned long flags)
1674 static inline void security_key_free(struct key *key)
1678 static inline int security_key_permission(key_ref_t key_ref,
1679 const struct cred *cred,
1685 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1692 #endif /* CONFIG_KEYS */
1695 #ifdef CONFIG_SECURITY
1696 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1697 int security_audit_rule_known(struct audit_krule *krule);
1698 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1699 void security_audit_rule_free(void *lsmrule);
1703 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1709 static inline int security_audit_rule_known(struct audit_krule *krule)
1714 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1720 static inline void security_audit_rule_free(void *lsmrule)
1723 #endif /* CONFIG_SECURITY */
1724 #endif /* CONFIG_AUDIT */
1726 #ifdef CONFIG_SECURITYFS
1728 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1729 struct dentry *parent, void *data,
1730 const struct file_operations *fops);
1731 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1732 struct dentry *securityfs_create_symlink(const char *name,
1733 struct dentry *parent,
1735 const struct inode_operations *iops);
1736 extern void securityfs_remove(struct dentry *dentry);
1738 #else /* CONFIG_SECURITYFS */
1740 static inline struct dentry *securityfs_create_dir(const char *name,
1741 struct dentry *parent)
1743 return ERR_PTR(-ENODEV);
1746 static inline struct dentry *securityfs_create_file(const char *name,
1748 struct dentry *parent,
1750 const struct file_operations *fops)
1752 return ERR_PTR(-ENODEV);
1755 static inline struct dentry *securityfs_create_symlink(const char *name,
1756 struct dentry *parent,
1758 const struct inode_operations *iops)
1760 return ERR_PTR(-ENODEV);
1763 static inline void securityfs_remove(struct dentry *dentry)
1768 #ifdef CONFIG_BPF_SYSCALL
1772 struct bpf_prog_aux;
1773 #ifdef CONFIG_SECURITY
1774 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1775 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1776 extern int security_bpf_prog(struct bpf_prog *prog);
1777 extern int security_bpf_map_alloc(struct bpf_map *map);
1778 extern void security_bpf_map_free(struct bpf_map *map);
1779 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1780 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1782 static inline int security_bpf(int cmd, union bpf_attr *attr,
1788 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1793 static inline int security_bpf_prog(struct bpf_prog *prog)
1798 static inline int security_bpf_map_alloc(struct bpf_map *map)
1803 static inline void security_bpf_map_free(struct bpf_map *map)
1806 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1811 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1813 #endif /* CONFIG_SECURITY */
1814 #endif /* CONFIG_BPF_SYSCALL */
1816 #endif /* ! __LINUX_SECURITY_H */