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_inode_setxattr(struct dentry *dentry, const char *name,
89 const void *value, size_t size, int flags);
90 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
91 extern int cap_inode_need_killpriv(struct dentry *dentry);
92 extern int cap_inode_killpriv(struct dentry *dentry);
93 extern int cap_mmap_addr(unsigned long addr);
94 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
95 unsigned long prot, unsigned long flags);
96 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
97 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
98 unsigned long arg4, unsigned long arg5);
99 extern int cap_task_setscheduler(struct task_struct *p);
100 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
101 extern int cap_task_setnice(struct task_struct *p, int nice);
102 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
111 struct xfrm_selector;
114 struct xfrm_user_sec_ctx;
118 extern unsigned long mmap_min_addr;
119 extern unsigned long dac_mmap_min_addr;
121 #define mmap_min_addr 0UL
122 #define dac_mmap_min_addr 0UL
126 * Values used in the task_security_ops calls
128 /* setuid or setgid, id0 == uid or gid */
129 #define LSM_SETID_ID 1
131 /* setreuid or setregid, id0 == real, id1 == eff */
132 #define LSM_SETID_RE 2
134 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
135 #define LSM_SETID_RES 4
137 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
138 #define LSM_SETID_FS 8
140 /* Flags for security_task_prlimit(). */
141 #define LSM_PRLIMIT_READ 1
142 #define LSM_PRLIMIT_WRITE 2
144 /* forward declares to avoid warnings */
148 /* bprm->unsafe reasons */
149 #define LSM_UNSAFE_SHARE 1
150 #define LSM_UNSAFE_PTRACE 2
151 #define LSM_UNSAFE_NO_NEW_PRIVS 4
154 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
155 void __user *buffer, size_t *lenp, loff_t *ppos);
158 /* security_inode_init_security callback function to write xattrs */
159 typedef int (*initxattrs) (struct inode *inode,
160 const struct xattr *xattr_array, void *fs_data);
162 #ifdef CONFIG_SECURITY
164 struct security_mnt_opts {
170 int call_lsm_notifier(enum lsm_event event, void *data);
171 int register_lsm_notifier(struct notifier_block *nb);
172 int unregister_lsm_notifier(struct notifier_block *nb);
174 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
176 opts->mnt_opts = NULL;
177 opts->mnt_opts_flags = NULL;
178 opts->num_mnt_opts = 0;
181 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
185 for (i = 0; i < opts->num_mnt_opts; i++)
186 kfree(opts->mnt_opts[i]);
187 kfree(opts->mnt_opts);
188 opts->mnt_opts = NULL;
189 kfree(opts->mnt_opts_flags);
190 opts->mnt_opts_flags = NULL;
191 opts->num_mnt_opts = 0;
195 extern int security_init(void);
197 /* Security operations */
198 int security_binder_set_context_mgr(struct task_struct *mgr);
199 int security_binder_transaction(struct task_struct *from,
200 struct task_struct *to);
201 int security_binder_transfer_binder(struct task_struct *from,
202 struct task_struct *to);
203 int security_binder_transfer_file(struct task_struct *from,
204 struct task_struct *to, struct file *file);
205 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
206 int security_ptrace_traceme(struct task_struct *parent);
207 int security_capget(struct task_struct *target,
208 kernel_cap_t *effective,
209 kernel_cap_t *inheritable,
210 kernel_cap_t *permitted);
211 int security_capset(struct cred *new, const struct cred *old,
212 const kernel_cap_t *effective,
213 const kernel_cap_t *inheritable,
214 const kernel_cap_t *permitted);
215 int security_capable(const struct cred *cred, struct user_namespace *ns,
217 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
219 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
220 int security_quota_on(struct dentry *dentry);
221 int security_syslog(int type);
222 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
223 static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
225 struct timespec64 ts64 = timespec_to_timespec64(*ts);
227 return security_settime64(&ts64, tz);
229 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
230 int security_bprm_set_creds(struct linux_binprm *bprm);
231 int security_bprm_check(struct linux_binprm *bprm);
232 void security_bprm_committing_creds(struct linux_binprm *bprm);
233 void security_bprm_committed_creds(struct linux_binprm *bprm);
234 int security_sb_alloc(struct super_block *sb);
235 void security_sb_free(struct super_block *sb);
236 int security_sb_copy_data(char *orig, char *copy);
237 int security_sb_remount(struct super_block *sb, void *data);
238 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
239 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
240 int security_sb_statfs(struct dentry *dentry);
241 int security_sb_mount(const char *dev_name, const struct path *path,
242 const char *type, unsigned long flags, void *data);
243 int security_sb_umount(struct vfsmount *mnt, int flags);
244 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
245 int security_sb_set_mnt_opts(struct super_block *sb,
246 struct security_mnt_opts *opts,
247 unsigned long kern_flags,
248 unsigned long *set_kern_flags);
249 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
250 struct super_block *newsb,
251 unsigned long kern_flags,
252 unsigned long *set_kern_flags);
253 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
254 int security_dentry_init_security(struct dentry *dentry, int mode,
255 const struct qstr *name, void **ctx,
257 int security_dentry_create_files_as(struct dentry *dentry, int mode,
259 const struct cred *old,
262 int security_inode_alloc(struct inode *inode);
263 void security_inode_free(struct inode *inode);
264 int security_inode_init_security(struct inode *inode, struct inode *dir,
265 const struct qstr *qstr,
266 initxattrs initxattrs, void *fs_data);
267 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
268 const struct qstr *qstr, const char **name,
269 void **value, size_t *len);
270 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
271 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
272 struct dentry *new_dentry);
273 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
274 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
275 const char *old_name);
276 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
277 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
278 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
279 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
280 struct inode *new_dir, struct dentry *new_dentry,
282 int security_inode_readlink(struct dentry *dentry);
283 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
285 int security_inode_permission(struct inode *inode, int mask);
286 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
287 int security_inode_getattr(const struct path *path);
288 int security_inode_setxattr(struct dentry *dentry, const char *name,
289 const void *value, size_t size, int flags);
290 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
291 const void *value, size_t size, int flags);
292 int security_inode_getxattr(struct dentry *dentry, const char *name);
293 int security_inode_listxattr(struct dentry *dentry);
294 int security_inode_removexattr(struct dentry *dentry, const char *name);
295 int security_inode_need_killpriv(struct dentry *dentry);
296 int security_inode_killpriv(struct dentry *dentry);
297 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
298 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
299 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
300 void security_inode_getsecid(struct inode *inode, u32 *secid);
301 int security_inode_copy_up(struct dentry *src, struct cred **new);
302 int security_inode_copy_up_xattr(const char *name);
303 int security_file_permission(struct file *file, int mask);
304 int security_file_alloc(struct file *file);
305 void security_file_free(struct file *file);
306 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
307 int security_mmap_file(struct file *file, unsigned long prot,
308 unsigned long flags);
309 int security_mmap_addr(unsigned long addr);
310 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
312 int security_file_lock(struct file *file, unsigned int cmd);
313 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
314 void security_file_set_fowner(struct file *file);
315 int security_file_send_sigiotask(struct task_struct *tsk,
316 struct fown_struct *fown, int sig);
317 int security_file_receive(struct file *file);
318 int security_file_open(struct file *file, const struct cred *cred);
319 int security_task_create(unsigned long clone_flags);
320 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
321 void security_task_free(struct task_struct *task);
322 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
323 void security_cred_free(struct cred *cred);
324 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
325 void security_transfer_creds(struct cred *new, const struct cred *old);
326 int security_kernel_act_as(struct cred *new, u32 secid);
327 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
328 int security_kernel_module_request(char *kmod_name);
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 siginfo *info,
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 msg_queue *msq);
358 void security_msg_queue_free(struct msg_queue *msq);
359 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
360 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
361 int security_msg_queue_msgsnd(struct msg_queue *msq,
362 struct msg_msg *msg, int msqflg);
363 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
364 struct task_struct *target, long type, int mode);
365 int security_shm_alloc(struct shmid_kernel *shp);
366 void security_shm_free(struct shmid_kernel *shp);
367 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
368 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
369 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
370 int security_sem_alloc(struct sem_array *sma);
371 void security_sem_free(struct sem_array *sma);
372 int security_sem_associate(struct sem_array *sma, int semflg);
373 int security_sem_semctl(struct sem_array *sma, int cmd);
374 int security_sem_semop(struct sem_array *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, char *name, char **value);
378 int security_setprocattr(const char *name, void *value, size_t size);
379 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
380 int security_ismaclabel(const char *name);
381 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
382 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
383 void security_release_secctx(char *secdata, u32 seclen);
385 void security_inode_invalidate_secctx(struct inode *inode);
386 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
387 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
388 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
389 #else /* CONFIG_SECURITY */
390 struct security_mnt_opts {
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_init_mnt_opts(struct security_mnt_opts *opts)
412 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
417 * This is the default capabilities functionality. Most of these functions
418 * are just stubbed out, but a few must call the proper capable code.
421 static inline int security_init(void)
426 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
431 static inline int security_binder_transaction(struct task_struct *from,
432 struct task_struct *to)
437 static inline int security_binder_transfer_binder(struct task_struct *from,
438 struct task_struct *to)
443 static inline int security_binder_transfer_file(struct task_struct *from,
444 struct task_struct *to,
450 static inline int security_ptrace_access_check(struct task_struct *child,
453 return cap_ptrace_access_check(child, mode);
456 static inline int security_ptrace_traceme(struct task_struct *parent)
458 return cap_ptrace_traceme(parent);
461 static inline int security_capget(struct task_struct *target,
462 kernel_cap_t *effective,
463 kernel_cap_t *inheritable,
464 kernel_cap_t *permitted)
466 return cap_capget(target, effective, inheritable, permitted);
469 static inline int security_capset(struct cred *new,
470 const struct cred *old,
471 const kernel_cap_t *effective,
472 const kernel_cap_t *inheritable,
473 const kernel_cap_t *permitted)
475 return cap_capset(new, old, effective, inheritable, permitted);
478 static inline int security_capable(const struct cred *cred,
479 struct user_namespace *ns, int cap)
481 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
484 static inline int security_capable_noaudit(const struct cred *cred,
485 struct user_namespace *ns, int cap) {
486 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
489 static inline int security_quotactl(int cmds, int type, int id,
490 struct super_block *sb)
495 static inline int security_quota_on(struct dentry *dentry)
500 static inline int security_syslog(int type)
505 static inline int security_settime64(const struct timespec64 *ts,
506 const struct timezone *tz)
508 return cap_settime(ts, tz);
511 static inline int security_settime(const struct timespec *ts,
512 const struct timezone *tz)
514 struct timespec64 ts64 = timespec_to_timespec64(*ts);
516 return cap_settime(&ts64, tz);
519 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
521 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
524 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
526 return cap_bprm_set_creds(bprm);
529 static inline int security_bprm_check(struct linux_binprm *bprm)
534 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
538 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
542 static inline int security_sb_alloc(struct super_block *sb)
547 static inline void security_sb_free(struct super_block *sb)
550 static inline int security_sb_copy_data(char *orig, char *copy)
555 static inline int security_sb_remount(struct super_block *sb, void *data)
560 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
565 static inline int security_sb_show_options(struct seq_file *m,
566 struct super_block *sb)
571 static inline int security_sb_statfs(struct dentry *dentry)
576 static inline int security_sb_mount(const char *dev_name, const struct path *path,
577 const char *type, unsigned long flags,
583 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
588 static inline int security_sb_pivotroot(const struct path *old_path,
589 const struct path *new_path)
594 static inline int security_sb_set_mnt_opts(struct super_block *sb,
595 struct security_mnt_opts *opts,
596 unsigned long kern_flags,
597 unsigned long *set_kern_flags)
602 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
603 struct super_block *newsb,
604 unsigned long kern_flags,
605 unsigned long *set_kern_flags)
610 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
615 static inline int security_inode_alloc(struct inode *inode)
620 static inline void security_inode_free(struct inode *inode)
623 static inline int security_dentry_init_security(struct dentry *dentry,
625 const struct qstr *name,
632 static inline int security_dentry_create_files_as(struct dentry *dentry,
633 int mode, struct qstr *name,
634 const struct cred *old,
641 static inline int security_inode_init_security(struct inode *inode,
643 const struct qstr *qstr,
644 const initxattrs xattrs,
650 static inline int security_old_inode_init_security(struct inode *inode,
652 const struct qstr *qstr,
654 void **value, size_t *len)
659 static inline int security_inode_create(struct inode *dir,
660 struct dentry *dentry,
666 static inline int security_inode_link(struct dentry *old_dentry,
668 struct dentry *new_dentry)
673 static inline int security_inode_unlink(struct inode *dir,
674 struct dentry *dentry)
679 static inline int security_inode_symlink(struct inode *dir,
680 struct dentry *dentry,
681 const char *old_name)
686 static inline int security_inode_mkdir(struct inode *dir,
687 struct dentry *dentry,
693 static inline int security_inode_rmdir(struct inode *dir,
694 struct dentry *dentry)
699 static inline int security_inode_mknod(struct inode *dir,
700 struct dentry *dentry,
706 static inline int security_inode_rename(struct inode *old_dir,
707 struct dentry *old_dentry,
708 struct inode *new_dir,
709 struct dentry *new_dentry,
715 static inline int security_inode_readlink(struct dentry *dentry)
720 static inline int security_inode_follow_link(struct dentry *dentry,
727 static inline int security_inode_permission(struct inode *inode, int mask)
732 static inline int security_inode_setattr(struct dentry *dentry,
738 static inline int security_inode_getattr(const struct path *path)
743 static inline int security_inode_setxattr(struct dentry *dentry,
744 const char *name, const void *value, size_t size, int flags)
746 return cap_inode_setxattr(dentry, name, value, size, flags);
749 static inline void security_inode_post_setxattr(struct dentry *dentry,
750 const char *name, const void *value, size_t size, int flags)
753 static inline int security_inode_getxattr(struct dentry *dentry,
759 static inline int security_inode_listxattr(struct dentry *dentry)
764 static inline int security_inode_removexattr(struct dentry *dentry,
767 return cap_inode_removexattr(dentry, name);
770 static inline int security_inode_need_killpriv(struct dentry *dentry)
772 return cap_inode_need_killpriv(dentry);
775 static inline int security_inode_killpriv(struct dentry *dentry)
777 return cap_inode_killpriv(dentry);
780 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
785 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
790 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
795 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
800 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
805 static inline int security_inode_copy_up_xattr(const char *name)
810 static inline int security_file_permission(struct file *file, int mask)
815 static inline int security_file_alloc(struct file *file)
820 static inline void security_file_free(struct file *file)
823 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
829 static inline int security_mmap_file(struct file *file, unsigned long prot,
835 static inline int security_mmap_addr(unsigned long addr)
837 return cap_mmap_addr(addr);
840 static inline int security_file_mprotect(struct vm_area_struct *vma,
841 unsigned long reqprot,
847 static inline int security_file_lock(struct file *file, unsigned int cmd)
852 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
858 static inline void security_file_set_fowner(struct file *file)
863 static inline int security_file_send_sigiotask(struct task_struct *tsk,
864 struct fown_struct *fown,
870 static inline int security_file_receive(struct file *file)
875 static inline int security_file_open(struct file *file,
876 const struct cred *cred)
881 static inline int security_task_create(unsigned long clone_flags)
886 static inline int security_task_alloc(struct task_struct *task,
887 unsigned long clone_flags)
892 static inline void security_task_free(struct task_struct *task)
895 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
900 static inline void security_cred_free(struct cred *cred)
903 static inline int security_prepare_creds(struct cred *new,
904 const struct cred *old,
910 static inline void security_transfer_creds(struct cred *new,
911 const struct cred *old)
915 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
920 static inline int security_kernel_create_files_as(struct cred *cred,
926 static inline int security_kernel_module_request(char *kmod_name)
931 static inline int security_kernel_read_file(struct file *file,
932 enum kernel_read_file_id id)
937 static inline int security_kernel_post_read_file(struct file *file,
938 char *buf, loff_t size,
939 enum kernel_read_file_id id)
944 static inline int security_task_fix_setuid(struct cred *new,
945 const struct cred *old,
948 return cap_task_fix_setuid(new, old, flags);
951 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
956 static inline int security_task_getpgid(struct task_struct *p)
961 static inline int security_task_getsid(struct task_struct *p)
966 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
971 static inline int security_task_setnice(struct task_struct *p, int nice)
973 return cap_task_setnice(p, nice);
976 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
978 return cap_task_setioprio(p, ioprio);
981 static inline int security_task_getioprio(struct task_struct *p)
986 static inline int security_task_prlimit(const struct cred *cred,
987 const struct cred *tcred,
993 static inline int security_task_setrlimit(struct task_struct *p,
994 unsigned int resource,
995 struct rlimit *new_rlim)
1000 static inline int security_task_setscheduler(struct task_struct *p)
1002 return cap_task_setscheduler(p);
1005 static inline int security_task_getscheduler(struct task_struct *p)
1010 static inline int security_task_movememory(struct task_struct *p)
1015 static inline int security_task_kill(struct task_struct *p,
1016 struct siginfo *info, int sig,
1022 static inline int security_task_prctl(int option, unsigned long arg2,
1027 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1030 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1033 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1039 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1044 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1049 static inline void security_msg_msg_free(struct msg_msg *msg)
1052 static inline int security_msg_queue_alloc(struct msg_queue *msq)
1057 static inline void security_msg_queue_free(struct msg_queue *msq)
1060 static inline int security_msg_queue_associate(struct msg_queue *msq,
1066 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1071 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1072 struct msg_msg *msg, int msqflg)
1077 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1078 struct msg_msg *msg,
1079 struct task_struct *target,
1080 long type, int mode)
1085 static inline int security_shm_alloc(struct shmid_kernel *shp)
1090 static inline void security_shm_free(struct shmid_kernel *shp)
1093 static inline int security_shm_associate(struct shmid_kernel *shp,
1099 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1104 static inline int security_shm_shmat(struct shmid_kernel *shp,
1105 char __user *shmaddr, int shmflg)
1110 static inline int security_sem_alloc(struct sem_array *sma)
1115 static inline void security_sem_free(struct sem_array *sma)
1118 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1123 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1128 static inline int security_sem_semop(struct sem_array *sma,
1129 struct sembuf *sops, unsigned nsops,
1135 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1138 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1143 static inline int security_setprocattr(char *name, void *value, size_t size)
1148 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1153 static inline int security_ismaclabel(const char *name)
1158 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1163 static inline int security_secctx_to_secid(const char *secdata,
1170 static inline void security_release_secctx(char *secdata, u32 seclen)
1174 static inline void security_inode_invalidate_secctx(struct inode *inode)
1178 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1182 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1186 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1190 #endif /* CONFIG_SECURITY */
1192 #ifdef CONFIG_SECURITY_NETWORK
1194 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1195 int security_unix_may_send(struct socket *sock, struct socket *other);
1196 int security_socket_create(int family, int type, int protocol, int kern);
1197 int security_socket_post_create(struct socket *sock, int family,
1198 int type, int protocol, int kern);
1199 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1200 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1201 int security_socket_listen(struct socket *sock, int backlog);
1202 int security_socket_accept(struct socket *sock, struct socket *newsock);
1203 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1204 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1205 int size, int flags);
1206 int security_socket_getsockname(struct socket *sock);
1207 int security_socket_getpeername(struct socket *sock);
1208 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1209 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1210 int security_socket_shutdown(struct socket *sock, int how);
1211 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1212 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1213 int __user *optlen, unsigned len);
1214 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1215 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1216 void security_sk_free(struct sock *sk);
1217 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1218 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1219 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1220 void security_sock_graft(struct sock*sk, struct socket *parent);
1221 int security_inet_conn_request(struct sock *sk,
1222 struct sk_buff *skb, struct request_sock *req);
1223 void security_inet_csk_clone(struct sock *newsk,
1224 const struct request_sock *req);
1225 void security_inet_conn_established(struct sock *sk,
1226 struct sk_buff *skb);
1227 int security_secmark_relabel_packet(u32 secid);
1228 void security_secmark_refcount_inc(void);
1229 void security_secmark_refcount_dec(void);
1230 int security_tun_dev_alloc_security(void **security);
1231 void security_tun_dev_free_security(void *security);
1232 int security_tun_dev_create(void);
1233 int security_tun_dev_attach_queue(void *security);
1234 int security_tun_dev_attach(struct sock *sk, void *security);
1235 int security_tun_dev_open(void *security);
1237 #else /* CONFIG_SECURITY_NETWORK */
1238 static inline int security_unix_stream_connect(struct sock *sock,
1245 static inline int security_unix_may_send(struct socket *sock,
1246 struct socket *other)
1251 static inline int security_socket_create(int family, int type,
1252 int protocol, int kern)
1257 static inline int security_socket_post_create(struct socket *sock,
1260 int protocol, int kern)
1265 static inline int security_socket_bind(struct socket *sock,
1266 struct sockaddr *address,
1272 static inline int security_socket_connect(struct socket *sock,
1273 struct sockaddr *address,
1279 static inline int security_socket_listen(struct socket *sock, int backlog)
1284 static inline int security_socket_accept(struct socket *sock,
1285 struct socket *newsock)
1290 static inline int security_socket_sendmsg(struct socket *sock,
1291 struct msghdr *msg, int size)
1296 static inline int security_socket_recvmsg(struct socket *sock,
1297 struct msghdr *msg, int size,
1303 static inline int security_socket_getsockname(struct socket *sock)
1308 static inline int security_socket_getpeername(struct socket *sock)
1313 static inline int security_socket_getsockopt(struct socket *sock,
1314 int level, int optname)
1319 static inline int security_socket_setsockopt(struct socket *sock,
1320 int level, int optname)
1325 static inline int security_socket_shutdown(struct socket *sock, int how)
1329 static inline int security_sock_rcv_skb(struct sock *sk,
1330 struct sk_buff *skb)
1335 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1336 int __user *optlen, unsigned len)
1338 return -ENOPROTOOPT;
1341 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1343 return -ENOPROTOOPT;
1346 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1351 static inline void security_sk_free(struct sock *sk)
1355 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1359 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1363 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1367 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1371 static inline int security_inet_conn_request(struct sock *sk,
1372 struct sk_buff *skb, struct request_sock *req)
1377 static inline void security_inet_csk_clone(struct sock *newsk,
1378 const struct request_sock *req)
1382 static inline void security_inet_conn_established(struct sock *sk,
1383 struct sk_buff *skb)
1387 static inline int security_secmark_relabel_packet(u32 secid)
1392 static inline void security_secmark_refcount_inc(void)
1396 static inline void security_secmark_refcount_dec(void)
1400 static inline int security_tun_dev_alloc_security(void **security)
1405 static inline void security_tun_dev_free_security(void *security)
1409 static inline int security_tun_dev_create(void)
1414 static inline int security_tun_dev_attach_queue(void *security)
1419 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1424 static inline int security_tun_dev_open(void *security)
1428 #endif /* CONFIG_SECURITY_NETWORK */
1430 #ifdef CONFIG_SECURITY_INFINIBAND
1431 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1432 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1433 int security_ib_alloc_security(void **sec);
1434 void security_ib_free_security(void *sec);
1435 #else /* CONFIG_SECURITY_INFINIBAND */
1436 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1441 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1446 static inline int security_ib_alloc_security(void **sec)
1451 static inline void security_ib_free_security(void *sec)
1454 #endif /* CONFIG_SECURITY_INFINIBAND */
1456 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1458 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1459 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1460 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1461 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1462 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1463 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1464 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1465 struct xfrm_sec_ctx *polsec, u32 secid);
1466 int security_xfrm_state_delete(struct xfrm_state *x);
1467 void security_xfrm_state_free(struct xfrm_state *x);
1468 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1469 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1470 struct xfrm_policy *xp,
1471 const struct flowi *fl);
1472 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1473 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1475 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1477 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1478 struct xfrm_user_sec_ctx *sec_ctx,
1484 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1489 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1493 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1498 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1499 struct xfrm_user_sec_ctx *sec_ctx)
1504 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1505 struct xfrm_sec_ctx *polsec, u32 secid)
1510 static inline void security_xfrm_state_free(struct xfrm_state *x)
1514 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1519 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1524 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1525 struct xfrm_policy *xp, const struct flowi *fl)
1530 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1535 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1539 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1541 #ifdef CONFIG_SECURITY_PATH
1542 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1543 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1544 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1545 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1547 int security_path_truncate(const struct path *path);
1548 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1549 const char *old_name);
1550 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1551 struct dentry *new_dentry);
1552 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1553 const struct path *new_dir, struct dentry *new_dentry,
1554 unsigned int flags);
1555 int security_path_chmod(const struct path *path, umode_t mode);
1556 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1557 int security_path_chroot(const struct path *path);
1558 #else /* CONFIG_SECURITY_PATH */
1559 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1564 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1570 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1575 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1576 umode_t mode, unsigned int dev)
1581 static inline int security_path_truncate(const struct path *path)
1586 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1587 const char *old_name)
1592 static inline int security_path_link(struct dentry *old_dentry,
1593 const struct path *new_dir,
1594 struct dentry *new_dentry)
1599 static inline int security_path_rename(const struct path *old_dir,
1600 struct dentry *old_dentry,
1601 const struct path *new_dir,
1602 struct dentry *new_dentry,
1608 static inline int security_path_chmod(const struct path *path, umode_t mode)
1613 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1618 static inline int security_path_chroot(const struct path *path)
1622 #endif /* CONFIG_SECURITY_PATH */
1625 #ifdef CONFIG_SECURITY
1627 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1628 void security_key_free(struct key *key);
1629 int security_key_permission(key_ref_t key_ref,
1630 const struct cred *cred, unsigned perm);
1631 int security_key_getsecurity(struct key *key, char **_buffer);
1635 static inline int security_key_alloc(struct key *key,
1636 const struct cred *cred,
1637 unsigned long flags)
1642 static inline void security_key_free(struct key *key)
1646 static inline int security_key_permission(key_ref_t key_ref,
1647 const struct cred *cred,
1653 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1660 #endif /* CONFIG_KEYS */
1663 #ifdef CONFIG_SECURITY
1664 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1665 int security_audit_rule_known(struct audit_krule *krule);
1666 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1667 struct audit_context *actx);
1668 void security_audit_rule_free(void *lsmrule);
1672 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1678 static inline int security_audit_rule_known(struct audit_krule *krule)
1683 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1684 void *lsmrule, struct audit_context *actx)
1689 static inline void security_audit_rule_free(void *lsmrule)
1692 #endif /* CONFIG_SECURITY */
1693 #endif /* CONFIG_AUDIT */
1695 #ifdef CONFIG_SECURITYFS
1697 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1698 struct dentry *parent, void *data,
1699 const struct file_operations *fops);
1700 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1701 struct dentry *securityfs_create_symlink(const char *name,
1702 struct dentry *parent,
1704 const struct inode_operations *iops);
1705 extern void securityfs_remove(struct dentry *dentry);
1707 #else /* CONFIG_SECURITYFS */
1709 static inline struct dentry *securityfs_create_dir(const char *name,
1710 struct dentry *parent)
1712 return ERR_PTR(-ENODEV);
1715 static inline struct dentry *securityfs_create_file(const char *name,
1717 struct dentry *parent,
1719 const struct file_operations *fops)
1721 return ERR_PTR(-ENODEV);
1724 static inline struct dentry *securityfs_create_symlink(const char *name,
1725 struct dentry *parent,
1727 const struct inode_operations *iops)
1729 return ERR_PTR(-ENODEV);
1732 static inline void securityfs_remove(struct dentry *dentry)
1737 #ifdef CONFIG_SECURITY
1739 static inline char *alloc_secdata(void)
1741 return (char *)get_zeroed_page(GFP_KERNEL);
1744 static inline void free_secdata(void *secdata)
1746 free_page((unsigned long)secdata);
1751 static inline char *alloc_secdata(void)
1756 static inline void free_secdata(void *secdata)
1758 #endif /* CONFIG_SECURITY */
1760 #endif /* ! __LINUX_SECURITY_H */