4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
22 #ifndef __LINUX_SECURITY_H
23 #define __LINUX_SECURITY_H
25 #include <linux/key.h>
26 #include <linux/capability.h>
28 #include <linux/slab.h>
29 #include <linux/err.h>
30 #include <linux/string.h>
51 struct file_operations;
59 /* If capable should audit the security request */
60 #define SECURITY_CAP_NOAUDIT 0
61 #define SECURITY_CAP_AUDIT 1
63 /* LSM Agnostic defines for sb_set_mnt_opts */
64 #define SECURITY_LSM_NATIVE_LABELS 1
68 struct user_namespace;
71 /* These functions are in security/commoncap.c */
72 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
74 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
75 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
76 extern int cap_ptrace_traceme(struct task_struct *parent);
77 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
78 extern int cap_capset(struct cred *new, const struct cred *old,
79 const kernel_cap_t *effective,
80 const kernel_cap_t *inheritable,
81 const kernel_cap_t *permitted);
82 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
83 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
84 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
85 const void *value, size_t size, int flags);
86 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
87 extern int cap_inode_need_killpriv(struct dentry *dentry);
88 extern int cap_inode_killpriv(struct dentry *dentry);
89 extern int cap_mmap_addr(unsigned long addr);
90 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
91 unsigned long prot, unsigned long flags);
92 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
93 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
94 unsigned long arg4, unsigned long arg5);
95 extern int cap_task_setscheduler(struct task_struct *p);
96 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
97 extern int cap_task_setnice(struct task_struct *p, int nice);
98 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
107 struct xfrm_selector;
110 struct xfrm_user_sec_ctx;
114 extern unsigned long mmap_min_addr;
115 extern unsigned long dac_mmap_min_addr;
117 #define mmap_min_addr 0UL
118 #define dac_mmap_min_addr 0UL
122 * Values used in the task_security_ops calls
124 /* setuid or setgid, id0 == uid or gid */
125 #define LSM_SETID_ID 1
127 /* setreuid or setregid, id0 == real, id1 == eff */
128 #define LSM_SETID_RE 2
130 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
131 #define LSM_SETID_RES 4
133 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
134 #define LSM_SETID_FS 8
136 /* forward declares to avoid warnings */
140 /* bprm->unsafe reasons */
141 #define LSM_UNSAFE_SHARE 1
142 #define LSM_UNSAFE_PTRACE 2
143 #define LSM_UNSAFE_NO_NEW_PRIVS 4
146 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
147 void __user *buffer, size_t *lenp, loff_t *ppos);
150 /* security_inode_init_security callback function to write xattrs */
151 typedef int (*initxattrs) (struct inode *inode,
152 const struct xattr *xattr_array, void *fs_data);
154 #ifdef CONFIG_SECURITY
156 struct security_mnt_opts {
162 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
164 opts->mnt_opts = NULL;
165 opts->mnt_opts_flags = NULL;
166 opts->num_mnt_opts = 0;
169 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
173 for (i = 0; i < opts->num_mnt_opts; i++)
174 kfree(opts->mnt_opts[i]);
175 kfree(opts->mnt_opts);
176 opts->mnt_opts = NULL;
177 kfree(opts->mnt_opts_flags);
178 opts->mnt_opts_flags = NULL;
179 opts->num_mnt_opts = 0;
183 extern int security_init(void);
185 /* Security operations */
186 int security_binder_set_context_mgr(struct task_struct *mgr);
187 int security_binder_transaction(struct task_struct *from,
188 struct task_struct *to);
189 int security_binder_transfer_binder(struct task_struct *from,
190 struct task_struct *to);
191 int security_binder_transfer_file(struct task_struct *from,
192 struct task_struct *to, struct file *file);
193 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
194 int security_ptrace_traceme(struct task_struct *parent);
195 int security_capget(struct task_struct *target,
196 kernel_cap_t *effective,
197 kernel_cap_t *inheritable,
198 kernel_cap_t *permitted);
199 int security_capset(struct cred *new, const struct cred *old,
200 const kernel_cap_t *effective,
201 const kernel_cap_t *inheritable,
202 const kernel_cap_t *permitted);
203 int security_capable(const struct cred *cred, struct user_namespace *ns,
205 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
207 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
208 int security_quota_on(struct dentry *dentry);
209 int security_syslog(int type);
210 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
211 static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
213 struct timespec64 ts64 = timespec_to_timespec64(*ts);
215 return security_settime64(&ts64, tz);
217 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
218 int security_bprm_set_creds(struct linux_binprm *bprm);
219 int security_bprm_check(struct linux_binprm *bprm);
220 void security_bprm_committing_creds(struct linux_binprm *bprm);
221 void security_bprm_committed_creds(struct linux_binprm *bprm);
222 int security_bprm_secureexec(struct linux_binprm *bprm);
223 int security_sb_alloc(struct super_block *sb);
224 void security_sb_free(struct super_block *sb);
225 int security_sb_copy_data(char *orig, char *copy);
226 int security_sb_remount(struct super_block *sb, void *data);
227 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
228 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
229 int security_sb_statfs(struct dentry *dentry);
230 int security_sb_mount(const char *dev_name, const struct path *path,
231 const char *type, unsigned long flags, void *data);
232 int security_sb_umount(struct vfsmount *mnt, int flags);
233 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
234 int security_sb_set_mnt_opts(struct super_block *sb,
235 struct security_mnt_opts *opts,
236 unsigned long kern_flags,
237 unsigned long *set_kern_flags);
238 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
239 struct super_block *newsb);
240 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
241 int security_dentry_init_security(struct dentry *dentry, int mode,
242 const struct qstr *name, void **ctx,
244 int security_dentry_create_files_as(struct dentry *dentry, int mode,
246 const struct cred *old,
249 int security_inode_alloc(struct inode *inode);
250 void security_inode_free(struct inode *inode);
251 int security_inode_init_security(struct inode *inode, struct inode *dir,
252 const struct qstr *qstr,
253 initxattrs initxattrs, void *fs_data);
254 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
255 const struct qstr *qstr, const char **name,
256 void **value, size_t *len);
257 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
258 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
259 struct dentry *new_dentry);
260 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
261 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
262 const char *old_name);
263 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
264 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
265 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
266 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
267 struct inode *new_dir, struct dentry *new_dentry,
269 int security_inode_readlink(struct dentry *dentry);
270 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
272 int security_inode_permission(struct inode *inode, int mask);
273 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
274 int security_inode_getattr(const struct path *path);
275 int security_inode_setxattr(struct dentry *dentry, const char *name,
276 const void *value, size_t size, int flags);
277 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
278 const void *value, size_t size, int flags);
279 int security_inode_getxattr(struct dentry *dentry, const char *name);
280 int security_inode_listxattr(struct dentry *dentry);
281 int security_inode_removexattr(struct dentry *dentry, const char *name);
282 int security_inode_need_killpriv(struct dentry *dentry);
283 int security_inode_killpriv(struct dentry *dentry);
284 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
285 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
286 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
287 void security_inode_getsecid(struct inode *inode, u32 *secid);
288 int security_inode_copy_up(struct dentry *src, struct cred **new);
289 int security_inode_copy_up_xattr(const char *name);
290 int security_file_permission(struct file *file, int mask);
291 int security_file_alloc(struct file *file);
292 void security_file_free(struct file *file);
293 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
294 int security_mmap_file(struct file *file, unsigned long prot,
295 unsigned long flags);
296 int security_mmap_addr(unsigned long addr);
297 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
299 int security_file_lock(struct file *file, unsigned int cmd);
300 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
301 void security_file_set_fowner(struct file *file);
302 int security_file_send_sigiotask(struct task_struct *tsk,
303 struct fown_struct *fown, int sig);
304 int security_file_receive(struct file *file);
305 int security_file_open(struct file *file, const struct cred *cred);
306 int security_task_create(unsigned long clone_flags);
307 void security_task_free(struct task_struct *task);
308 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
309 void security_cred_free(struct cred *cred);
310 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
311 void security_transfer_creds(struct cred *new, const struct cred *old);
312 int security_kernel_act_as(struct cred *new, u32 secid);
313 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
314 int security_kernel_module_request(char *kmod_name);
315 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
316 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
317 enum kernel_read_file_id id);
318 int security_task_fix_setuid(struct cred *new, const struct cred *old,
320 int security_task_setpgid(struct task_struct *p, pid_t pgid);
321 int security_task_getpgid(struct task_struct *p);
322 int security_task_getsid(struct task_struct *p);
323 void security_task_getsecid(struct task_struct *p, u32 *secid);
324 int security_task_setnice(struct task_struct *p, int nice);
325 int security_task_setioprio(struct task_struct *p, int ioprio);
326 int security_task_getioprio(struct task_struct *p);
327 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
328 struct rlimit *new_rlim);
329 int security_task_setscheduler(struct task_struct *p);
330 int security_task_getscheduler(struct task_struct *p);
331 int security_task_movememory(struct task_struct *p);
332 int security_task_kill(struct task_struct *p, struct siginfo *info,
334 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
335 unsigned long arg4, unsigned long arg5);
336 void security_task_to_inode(struct task_struct *p, struct inode *inode);
337 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
338 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
339 int security_msg_msg_alloc(struct msg_msg *msg);
340 void security_msg_msg_free(struct msg_msg *msg);
341 int security_msg_queue_alloc(struct msg_queue *msq);
342 void security_msg_queue_free(struct msg_queue *msq);
343 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
344 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
345 int security_msg_queue_msgsnd(struct msg_queue *msq,
346 struct msg_msg *msg, int msqflg);
347 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
348 struct task_struct *target, long type, int mode);
349 int security_shm_alloc(struct shmid_kernel *shp);
350 void security_shm_free(struct shmid_kernel *shp);
351 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
352 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
353 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
354 int security_sem_alloc(struct sem_array *sma);
355 void security_sem_free(struct sem_array *sma);
356 int security_sem_associate(struct sem_array *sma, int semflg);
357 int security_sem_semctl(struct sem_array *sma, int cmd);
358 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
359 unsigned nsops, int alter);
360 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
361 int security_getprocattr(struct task_struct *p, char *name, char **value);
362 int security_setprocattr(const char *name, void *value, size_t size);
363 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
364 int security_ismaclabel(const char *name);
365 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
366 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
367 void security_release_secctx(char *secdata, u32 seclen);
369 void security_inode_invalidate_secctx(struct inode *inode);
370 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
371 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
372 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
373 #else /* CONFIG_SECURITY */
374 struct security_mnt_opts {
377 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
381 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
386 * This is the default capabilities functionality. Most of these functions
387 * are just stubbed out, but a few must call the proper capable code.
390 static inline int security_init(void)
395 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
400 static inline int security_binder_transaction(struct task_struct *from,
401 struct task_struct *to)
406 static inline int security_binder_transfer_binder(struct task_struct *from,
407 struct task_struct *to)
412 static inline int security_binder_transfer_file(struct task_struct *from,
413 struct task_struct *to,
419 static inline int security_ptrace_access_check(struct task_struct *child,
422 return cap_ptrace_access_check(child, mode);
425 static inline int security_ptrace_traceme(struct task_struct *parent)
427 return cap_ptrace_traceme(parent);
430 static inline int security_capget(struct task_struct *target,
431 kernel_cap_t *effective,
432 kernel_cap_t *inheritable,
433 kernel_cap_t *permitted)
435 return cap_capget(target, effective, inheritable, permitted);
438 static inline int security_capset(struct cred *new,
439 const struct cred *old,
440 const kernel_cap_t *effective,
441 const kernel_cap_t *inheritable,
442 const kernel_cap_t *permitted)
444 return cap_capset(new, old, effective, inheritable, permitted);
447 static inline int security_capable(const struct cred *cred,
448 struct user_namespace *ns, int cap)
450 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
453 static inline int security_capable_noaudit(const struct cred *cred,
454 struct user_namespace *ns, int cap) {
455 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
458 static inline int security_quotactl(int cmds, int type, int id,
459 struct super_block *sb)
464 static inline int security_quota_on(struct dentry *dentry)
469 static inline int security_syslog(int type)
474 static inline int security_settime64(const struct timespec64 *ts,
475 const struct timezone *tz)
477 return cap_settime(ts, tz);
480 static inline int security_settime(const struct timespec *ts,
481 const struct timezone *tz)
483 struct timespec64 ts64 = timespec_to_timespec64(*ts);
485 return cap_settime(&ts64, tz);
488 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
490 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
493 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
495 return cap_bprm_set_creds(bprm);
498 static inline int security_bprm_check(struct linux_binprm *bprm)
503 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
507 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
511 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
513 return cap_bprm_secureexec(bprm);
516 static inline int security_sb_alloc(struct super_block *sb)
521 static inline void security_sb_free(struct super_block *sb)
524 static inline int security_sb_copy_data(char *orig, char *copy)
529 static inline int security_sb_remount(struct super_block *sb, void *data)
534 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
539 static inline int security_sb_show_options(struct seq_file *m,
540 struct super_block *sb)
545 static inline int security_sb_statfs(struct dentry *dentry)
550 static inline int security_sb_mount(const char *dev_name, const struct path *path,
551 const char *type, unsigned long flags,
557 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
562 static inline int security_sb_pivotroot(const struct path *old_path,
563 const struct path *new_path)
568 static inline int security_sb_set_mnt_opts(struct super_block *sb,
569 struct security_mnt_opts *opts,
570 unsigned long kern_flags,
571 unsigned long *set_kern_flags)
576 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
577 struct super_block *newsb)
582 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
587 static inline int security_inode_alloc(struct inode *inode)
592 static inline void security_inode_free(struct inode *inode)
595 static inline int security_dentry_init_security(struct dentry *dentry,
597 const struct qstr *name,
604 static inline int security_dentry_create_files_as(struct dentry *dentry,
605 int mode, struct qstr *name,
606 const struct cred *old,
613 static inline int security_inode_init_security(struct inode *inode,
615 const struct qstr *qstr,
616 const initxattrs xattrs,
622 static inline int security_old_inode_init_security(struct inode *inode,
624 const struct qstr *qstr,
626 void **value, size_t *len)
631 static inline int security_inode_create(struct inode *dir,
632 struct dentry *dentry,
638 static inline int security_inode_link(struct dentry *old_dentry,
640 struct dentry *new_dentry)
645 static inline int security_inode_unlink(struct inode *dir,
646 struct dentry *dentry)
651 static inline int security_inode_symlink(struct inode *dir,
652 struct dentry *dentry,
653 const char *old_name)
658 static inline int security_inode_mkdir(struct inode *dir,
659 struct dentry *dentry,
665 static inline int security_inode_rmdir(struct inode *dir,
666 struct dentry *dentry)
671 static inline int security_inode_mknod(struct inode *dir,
672 struct dentry *dentry,
678 static inline int security_inode_rename(struct inode *old_dir,
679 struct dentry *old_dentry,
680 struct inode *new_dir,
681 struct dentry *new_dentry,
687 static inline int security_inode_readlink(struct dentry *dentry)
692 static inline int security_inode_follow_link(struct dentry *dentry,
699 static inline int security_inode_permission(struct inode *inode, int mask)
704 static inline int security_inode_setattr(struct dentry *dentry,
710 static inline int security_inode_getattr(const struct path *path)
715 static inline int security_inode_setxattr(struct dentry *dentry,
716 const char *name, const void *value, size_t size, int flags)
718 return cap_inode_setxattr(dentry, name, value, size, flags);
721 static inline void security_inode_post_setxattr(struct dentry *dentry,
722 const char *name, const void *value, size_t size, int flags)
725 static inline int security_inode_getxattr(struct dentry *dentry,
731 static inline int security_inode_listxattr(struct dentry *dentry)
736 static inline int security_inode_removexattr(struct dentry *dentry,
739 return cap_inode_removexattr(dentry, name);
742 static inline int security_inode_need_killpriv(struct dentry *dentry)
744 return cap_inode_need_killpriv(dentry);
747 static inline int security_inode_killpriv(struct dentry *dentry)
749 return cap_inode_killpriv(dentry);
752 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
757 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
762 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
767 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
772 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
777 static inline int security_inode_copy_up_xattr(const char *name)
782 static inline int security_file_permission(struct file *file, int mask)
787 static inline int security_file_alloc(struct file *file)
792 static inline void security_file_free(struct file *file)
795 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
801 static inline int security_mmap_file(struct file *file, unsigned long prot,
807 static inline int security_mmap_addr(unsigned long addr)
809 return cap_mmap_addr(addr);
812 static inline int security_file_mprotect(struct vm_area_struct *vma,
813 unsigned long reqprot,
819 static inline int security_file_lock(struct file *file, unsigned int cmd)
824 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
830 static inline void security_file_set_fowner(struct file *file)
835 static inline int security_file_send_sigiotask(struct task_struct *tsk,
836 struct fown_struct *fown,
842 static inline int security_file_receive(struct file *file)
847 static inline int security_file_open(struct file *file,
848 const struct cred *cred)
853 static inline int security_task_create(unsigned long clone_flags)
858 static inline void security_task_free(struct task_struct *task)
861 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
866 static inline void security_cred_free(struct cred *cred)
869 static inline int security_prepare_creds(struct cred *new,
870 const struct cred *old,
876 static inline void security_transfer_creds(struct cred *new,
877 const struct cred *old)
881 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
886 static inline int security_kernel_create_files_as(struct cred *cred,
892 static inline int security_kernel_module_request(char *kmod_name)
897 static inline int security_kernel_read_file(struct file *file,
898 enum kernel_read_file_id id)
903 static inline int security_kernel_post_read_file(struct file *file,
904 char *buf, loff_t size,
905 enum kernel_read_file_id id)
910 static inline int security_task_fix_setuid(struct cred *new,
911 const struct cred *old,
914 return cap_task_fix_setuid(new, old, flags);
917 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
922 static inline int security_task_getpgid(struct task_struct *p)
927 static inline int security_task_getsid(struct task_struct *p)
932 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
937 static inline int security_task_setnice(struct task_struct *p, int nice)
939 return cap_task_setnice(p, nice);
942 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
944 return cap_task_setioprio(p, ioprio);
947 static inline int security_task_getioprio(struct task_struct *p)
952 static inline int security_task_setrlimit(struct task_struct *p,
953 unsigned int resource,
954 struct rlimit *new_rlim)
959 static inline int security_task_setscheduler(struct task_struct *p)
961 return cap_task_setscheduler(p);
964 static inline int security_task_getscheduler(struct task_struct *p)
969 static inline int security_task_movememory(struct task_struct *p)
974 static inline int security_task_kill(struct task_struct *p,
975 struct siginfo *info, int sig,
981 static inline int security_task_prctl(int option, unsigned long arg2,
986 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
989 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
992 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
998 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1003 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1008 static inline void security_msg_msg_free(struct msg_msg *msg)
1011 static inline int security_msg_queue_alloc(struct msg_queue *msq)
1016 static inline void security_msg_queue_free(struct msg_queue *msq)
1019 static inline int security_msg_queue_associate(struct msg_queue *msq,
1025 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1030 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1031 struct msg_msg *msg, int msqflg)
1036 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1037 struct msg_msg *msg,
1038 struct task_struct *target,
1039 long type, int mode)
1044 static inline int security_shm_alloc(struct shmid_kernel *shp)
1049 static inline void security_shm_free(struct shmid_kernel *shp)
1052 static inline int security_shm_associate(struct shmid_kernel *shp,
1058 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1063 static inline int security_shm_shmat(struct shmid_kernel *shp,
1064 char __user *shmaddr, int shmflg)
1069 static inline int security_sem_alloc(struct sem_array *sma)
1074 static inline void security_sem_free(struct sem_array *sma)
1077 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1082 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1087 static inline int security_sem_semop(struct sem_array *sma,
1088 struct sembuf *sops, unsigned nsops,
1094 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1097 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1102 static inline int security_setprocattr(char *name, void *value, size_t size)
1107 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1112 static inline int security_ismaclabel(const char *name)
1117 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1122 static inline int security_secctx_to_secid(const char *secdata,
1129 static inline void security_release_secctx(char *secdata, u32 seclen)
1133 static inline void security_inode_invalidate_secctx(struct inode *inode)
1137 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1141 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1145 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1149 #endif /* CONFIG_SECURITY */
1151 #ifdef CONFIG_SECURITY_NETWORK
1153 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1154 int security_unix_may_send(struct socket *sock, struct socket *other);
1155 int security_socket_create(int family, int type, int protocol, int kern);
1156 int security_socket_post_create(struct socket *sock, int family,
1157 int type, int protocol, int kern);
1158 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1159 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1160 int security_socket_listen(struct socket *sock, int backlog);
1161 int security_socket_accept(struct socket *sock, struct socket *newsock);
1162 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1163 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1164 int size, int flags);
1165 int security_socket_getsockname(struct socket *sock);
1166 int security_socket_getpeername(struct socket *sock);
1167 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1168 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1169 int security_socket_shutdown(struct socket *sock, int how);
1170 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1171 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1172 int __user *optlen, unsigned len);
1173 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1174 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1175 void security_sk_free(struct sock *sk);
1176 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1177 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1178 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1179 void security_sock_graft(struct sock*sk, struct socket *parent);
1180 int security_inet_conn_request(struct sock *sk,
1181 struct sk_buff *skb, struct request_sock *req);
1182 void security_inet_csk_clone(struct sock *newsk,
1183 const struct request_sock *req);
1184 void security_inet_conn_established(struct sock *sk,
1185 struct sk_buff *skb);
1186 int security_secmark_relabel_packet(u32 secid);
1187 void security_secmark_refcount_inc(void);
1188 void security_secmark_refcount_dec(void);
1189 int security_tun_dev_alloc_security(void **security);
1190 void security_tun_dev_free_security(void *security);
1191 int security_tun_dev_create(void);
1192 int security_tun_dev_attach_queue(void *security);
1193 int security_tun_dev_attach(struct sock *sk, void *security);
1194 int security_tun_dev_open(void *security);
1196 #else /* CONFIG_SECURITY_NETWORK */
1197 static inline int security_unix_stream_connect(struct sock *sock,
1204 static inline int security_unix_may_send(struct socket *sock,
1205 struct socket *other)
1210 static inline int security_socket_create(int family, int type,
1211 int protocol, int kern)
1216 static inline int security_socket_post_create(struct socket *sock,
1219 int protocol, int kern)
1224 static inline int security_socket_bind(struct socket *sock,
1225 struct sockaddr *address,
1231 static inline int security_socket_connect(struct socket *sock,
1232 struct sockaddr *address,
1238 static inline int security_socket_listen(struct socket *sock, int backlog)
1243 static inline int security_socket_accept(struct socket *sock,
1244 struct socket *newsock)
1249 static inline int security_socket_sendmsg(struct socket *sock,
1250 struct msghdr *msg, int size)
1255 static inline int security_socket_recvmsg(struct socket *sock,
1256 struct msghdr *msg, int size,
1262 static inline int security_socket_getsockname(struct socket *sock)
1267 static inline int security_socket_getpeername(struct socket *sock)
1272 static inline int security_socket_getsockopt(struct socket *sock,
1273 int level, int optname)
1278 static inline int security_socket_setsockopt(struct socket *sock,
1279 int level, int optname)
1284 static inline int security_socket_shutdown(struct socket *sock, int how)
1288 static inline int security_sock_rcv_skb(struct sock *sk,
1289 struct sk_buff *skb)
1294 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1295 int __user *optlen, unsigned len)
1297 return -ENOPROTOOPT;
1300 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1302 return -ENOPROTOOPT;
1305 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1310 static inline void security_sk_free(struct sock *sk)
1314 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1318 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1322 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1326 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1330 static inline int security_inet_conn_request(struct sock *sk,
1331 struct sk_buff *skb, struct request_sock *req)
1336 static inline void security_inet_csk_clone(struct sock *newsk,
1337 const struct request_sock *req)
1341 static inline void security_inet_conn_established(struct sock *sk,
1342 struct sk_buff *skb)
1346 static inline int security_secmark_relabel_packet(u32 secid)
1351 static inline void security_secmark_refcount_inc(void)
1355 static inline void security_secmark_refcount_dec(void)
1359 static inline int security_tun_dev_alloc_security(void **security)
1364 static inline void security_tun_dev_free_security(void *security)
1368 static inline int security_tun_dev_create(void)
1373 static inline int security_tun_dev_attach_queue(void *security)
1378 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1383 static inline int security_tun_dev_open(void *security)
1387 #endif /* CONFIG_SECURITY_NETWORK */
1389 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1391 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1392 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1393 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1394 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1395 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1396 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1397 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1398 struct xfrm_sec_ctx *polsec, u32 secid);
1399 int security_xfrm_state_delete(struct xfrm_state *x);
1400 void security_xfrm_state_free(struct xfrm_state *x);
1401 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1402 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1403 struct xfrm_policy *xp,
1404 const struct flowi *fl);
1405 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1406 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1408 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1410 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1411 struct xfrm_user_sec_ctx *sec_ctx,
1417 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1422 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1426 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1431 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1432 struct xfrm_user_sec_ctx *sec_ctx)
1437 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1438 struct xfrm_sec_ctx *polsec, u32 secid)
1443 static inline void security_xfrm_state_free(struct xfrm_state *x)
1447 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1452 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1457 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1458 struct xfrm_policy *xp, const struct flowi *fl)
1463 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1468 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1472 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1474 #ifdef CONFIG_SECURITY_PATH
1475 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1476 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1477 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1478 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1480 int security_path_truncate(const struct path *path);
1481 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1482 const char *old_name);
1483 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1484 struct dentry *new_dentry);
1485 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1486 const struct path *new_dir, struct dentry *new_dentry,
1487 unsigned int flags);
1488 int security_path_chmod(const struct path *path, umode_t mode);
1489 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1490 int security_path_chroot(const struct path *path);
1491 #else /* CONFIG_SECURITY_PATH */
1492 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1497 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1503 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1508 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1509 umode_t mode, unsigned int dev)
1514 static inline int security_path_truncate(const struct path *path)
1519 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1520 const char *old_name)
1525 static inline int security_path_link(struct dentry *old_dentry,
1526 const struct path *new_dir,
1527 struct dentry *new_dentry)
1532 static inline int security_path_rename(const struct path *old_dir,
1533 struct dentry *old_dentry,
1534 const struct path *new_dir,
1535 struct dentry *new_dentry,
1541 static inline int security_path_chmod(const struct path *path, umode_t mode)
1546 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1551 static inline int security_path_chroot(const struct path *path)
1555 #endif /* CONFIG_SECURITY_PATH */
1558 #ifdef CONFIG_SECURITY
1560 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1561 void security_key_free(struct key *key);
1562 int security_key_permission(key_ref_t key_ref,
1563 const struct cred *cred, unsigned perm);
1564 int security_key_getsecurity(struct key *key, char **_buffer);
1568 static inline int security_key_alloc(struct key *key,
1569 const struct cred *cred,
1570 unsigned long flags)
1575 static inline void security_key_free(struct key *key)
1579 static inline int security_key_permission(key_ref_t key_ref,
1580 const struct cred *cred,
1586 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1593 #endif /* CONFIG_KEYS */
1596 #ifdef CONFIG_SECURITY
1597 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1598 int security_audit_rule_known(struct audit_krule *krule);
1599 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1600 struct audit_context *actx);
1601 void security_audit_rule_free(void *lsmrule);
1605 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1611 static inline int security_audit_rule_known(struct audit_krule *krule)
1616 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1617 void *lsmrule, struct audit_context *actx)
1622 static inline void security_audit_rule_free(void *lsmrule)
1625 #endif /* CONFIG_SECURITY */
1626 #endif /* CONFIG_AUDIT */
1628 #ifdef CONFIG_SECURITYFS
1630 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1631 struct dentry *parent, void *data,
1632 const struct file_operations *fops);
1633 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1634 extern void securityfs_remove(struct dentry *dentry);
1636 #else /* CONFIG_SECURITYFS */
1638 static inline struct dentry *securityfs_create_dir(const char *name,
1639 struct dentry *parent)
1641 return ERR_PTR(-ENODEV);
1644 static inline struct dentry *securityfs_create_file(const char *name,
1646 struct dentry *parent,
1648 const struct file_operations *fops)
1650 return ERR_PTR(-ENODEV);
1653 static inline void securityfs_remove(struct dentry *dentry)
1658 #ifdef CONFIG_SECURITY
1660 static inline char *alloc_secdata(void)
1662 return (char *)get_zeroed_page(GFP_KERNEL);
1665 static inline void free_secdata(void *secdata)
1667 free_page((unsigned long)secdata);
1672 static inline char *alloc_secdata(void)
1677 static inline void free_secdata(void *secdata)
1679 #endif /* CONFIG_SECURITY */
1681 #endif /* ! __LINUX_SECURITY_H */