Root/security/security.c

Source at commit be977234bfb4a6dca8a39e7c52165e4cd536ad71 created 9 years 4 months ago.
By Lars-Peter Clausen, jz4740: Fix compile error
1/*
2 * Security plug functions
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <linux/capability.h>
15#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/security.h>
19#include <linux/ima.h>
20
21/* Boot-time LSM user choice */
22static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
23    CONFIG_DEFAULT_SECURITY;
24
25/* things that live in capability.c */
26extern void __init security_fixup_ops(struct security_operations *ops);
27
28static struct security_operations *security_ops;
29static struct security_operations default_security_ops = {
30    .name = "default",
31};
32
33static inline int __init verify(struct security_operations *ops)
34{
35    /* verify the security_operations structure exists */
36    if (!ops)
37        return -EINVAL;
38    security_fixup_ops(ops);
39    return 0;
40}
41
42static void __init do_security_initcalls(void)
43{
44    initcall_t *call;
45    call = __security_initcall_start;
46    while (call < __security_initcall_end) {
47        (*call) ();
48        call++;
49    }
50}
51
52/**
53 * security_init - initializes the security framework
54 *
55 * This should be called early in the kernel initialization sequence.
56 */
57int __init security_init(void)
58{
59    printk(KERN_INFO "Security Framework initialized\n");
60
61    security_fixup_ops(&default_security_ops);
62    security_ops = &default_security_ops;
63    do_security_initcalls();
64
65    return 0;
66}
67
68void reset_security_ops(void)
69{
70    security_ops = &default_security_ops;
71}
72
73/* Save user chosen LSM */
74static int __init choose_lsm(char *str)
75{
76    strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
77    return 1;
78}
79__setup("security=", choose_lsm);
80
81/**
82 * security_module_enable - Load given security module on boot ?
83 * @ops: a pointer to the struct security_operations that is to be checked.
84 *
85 * Each LSM must pass this method before registering its own operations
86 * to avoid security registration races. This method may also be used
87 * to check if your LSM is currently loaded during kernel initialization.
88 *
89 * Return true if:
90 * -The passed LSM is the one chosen by user at boot time,
91 * -or the passed LSM is configured as the default and the user did not
92 * choose an alternate LSM at boot time.
93 * Otherwise, return false.
94 */
95int __init security_module_enable(struct security_operations *ops)
96{
97    return !strcmp(ops->name, chosen_lsm);
98}
99
100/**
101 * register_security - registers a security framework with the kernel
102 * @ops: a pointer to the struct security_options that is to be registered
103 *
104 * This function allows a security module to register itself with the
105 * kernel security subsystem. Some rudimentary checking is done on the @ops
106 * value passed to this function. You'll need to check first if your LSM
107 * is allowed to register its @ops by calling security_module_enable(@ops).
108 *
109 * If there is already a security module registered with the kernel,
110 * an error will be returned. Otherwise %0 is returned on success.
111 */
112int __init register_security(struct security_operations *ops)
113{
114    if (verify(ops)) {
115        printk(KERN_DEBUG "%s could not verify "
116               "security_operations structure.\n", __func__);
117        return -EINVAL;
118    }
119
120    if (security_ops != &default_security_ops)
121        return -EAGAIN;
122
123    security_ops = ops;
124
125    return 0;
126}
127
128/* Security operations */
129
130int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
131{
132    return security_ops->ptrace_access_check(child, mode);
133}
134
135int security_ptrace_traceme(struct task_struct *parent)
136{
137    return security_ops->ptrace_traceme(parent);
138}
139
140int security_capget(struct task_struct *target,
141             kernel_cap_t *effective,
142             kernel_cap_t *inheritable,
143             kernel_cap_t *permitted)
144{
145    return security_ops->capget(target, effective, inheritable, permitted);
146}
147
148int security_capset(struct cred *new, const struct cred *old,
149            const kernel_cap_t *effective,
150            const kernel_cap_t *inheritable,
151            const kernel_cap_t *permitted)
152{
153    return security_ops->capset(new, old,
154                    effective, inheritable, permitted);
155}
156
157int security_capable(struct user_namespace *ns, const struct cred *cred,
158             int cap)
159{
160    return security_ops->capable(current, cred, ns, cap,
161                     SECURITY_CAP_AUDIT);
162}
163
164int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
165              int cap)
166{
167    const struct cred *cred;
168    int ret;
169
170    cred = get_task_cred(tsk);
171    ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_AUDIT);
172    put_cred(cred);
173    return ret;
174}
175
176int security_real_capable_noaudit(struct task_struct *tsk,
177                  struct user_namespace *ns, int cap)
178{
179    const struct cred *cred;
180    int ret;
181
182    cred = get_task_cred(tsk);
183    ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_NOAUDIT);
184    put_cred(cred);
185    return ret;
186}
187
188int security_quotactl(int cmds, int type, int id, struct super_block *sb)
189{
190    return security_ops->quotactl(cmds, type, id, sb);
191}
192
193int security_quota_on(struct dentry *dentry)
194{
195    return security_ops->quota_on(dentry);
196}
197
198int security_syslog(int type)
199{
200    return security_ops->syslog(type);
201}
202
203int security_settime(const struct timespec *ts, const struct timezone *tz)
204{
205    return security_ops->settime(ts, tz);
206}
207
208int security_vm_enough_memory(long pages)
209{
210    WARN_ON(current->mm == NULL);
211    return security_ops->vm_enough_memory(current->mm, pages);
212}
213
214int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
215{
216    WARN_ON(mm == NULL);
217    return security_ops->vm_enough_memory(mm, pages);
218}
219
220int security_vm_enough_memory_kern(long pages)
221{
222    /* If current->mm is a kernel thread then we will pass NULL,
223       for this specific case that is fine */
224    return security_ops->vm_enough_memory(current->mm, pages);
225}
226
227int security_bprm_set_creds(struct linux_binprm *bprm)
228{
229    return security_ops->bprm_set_creds(bprm);
230}
231
232int security_bprm_check(struct linux_binprm *bprm)
233{
234    int ret;
235
236    ret = security_ops->bprm_check_security(bprm);
237    if (ret)
238        return ret;
239    return ima_bprm_check(bprm);
240}
241
242void security_bprm_committing_creds(struct linux_binprm *bprm)
243{
244    security_ops->bprm_committing_creds(bprm);
245}
246
247void security_bprm_committed_creds(struct linux_binprm *bprm)
248{
249    security_ops->bprm_committed_creds(bprm);
250}
251
252int security_bprm_secureexec(struct linux_binprm *bprm)
253{
254    return security_ops->bprm_secureexec(bprm);
255}
256
257int security_sb_alloc(struct super_block *sb)
258{
259    return security_ops->sb_alloc_security(sb);
260}
261
262void security_sb_free(struct super_block *sb)
263{
264    security_ops->sb_free_security(sb);
265}
266
267int security_sb_copy_data(char *orig, char *copy)
268{
269    return security_ops->sb_copy_data(orig, copy);
270}
271EXPORT_SYMBOL(security_sb_copy_data);
272
273int security_sb_remount(struct super_block *sb, void *data)
274{
275    return security_ops->sb_remount(sb, data);
276}
277
278int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
279{
280    return security_ops->sb_kern_mount(sb, flags, data);
281}
282
283int security_sb_show_options(struct seq_file *m, struct super_block *sb)
284{
285    return security_ops->sb_show_options(m, sb);
286}
287
288int security_sb_statfs(struct dentry *dentry)
289{
290    return security_ops->sb_statfs(dentry);
291}
292
293int security_sb_mount(char *dev_name, struct path *path,
294                       char *type, unsigned long flags, void *data)
295{
296    return security_ops->sb_mount(dev_name, path, type, flags, data);
297}
298
299int security_sb_umount(struct vfsmount *mnt, int flags)
300{
301    return security_ops->sb_umount(mnt, flags);
302}
303
304int security_sb_pivotroot(struct path *old_path, struct path *new_path)
305{
306    return security_ops->sb_pivotroot(old_path, new_path);
307}
308
309int security_sb_set_mnt_opts(struct super_block *sb,
310                struct security_mnt_opts *opts)
311{
312    return security_ops->sb_set_mnt_opts(sb, opts);
313}
314EXPORT_SYMBOL(security_sb_set_mnt_opts);
315
316void security_sb_clone_mnt_opts(const struct super_block *oldsb,
317                struct super_block *newsb)
318{
319    security_ops->sb_clone_mnt_opts(oldsb, newsb);
320}
321EXPORT_SYMBOL(security_sb_clone_mnt_opts);
322
323int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
324{
325    return security_ops->sb_parse_opts_str(options, opts);
326}
327EXPORT_SYMBOL(security_sb_parse_opts_str);
328
329int security_inode_alloc(struct inode *inode)
330{
331    inode->i_security = NULL;
332    return security_ops->inode_alloc_security(inode);
333}
334
335void security_inode_free(struct inode *inode)
336{
337    ima_inode_free(inode);
338    security_ops->inode_free_security(inode);
339}
340
341int security_inode_init_security(struct inode *inode, struct inode *dir,
342                 const struct qstr *qstr, char **name,
343                 void **value, size_t *len)
344{
345    if (unlikely(IS_PRIVATE(inode)))
346        return -EOPNOTSUPP;
347    return security_ops->inode_init_security(inode, dir, qstr, name, value,
348                         len);
349}
350EXPORT_SYMBOL(security_inode_init_security);
351
352#ifdef CONFIG_SECURITY_PATH
353int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
354            unsigned int dev)
355{
356    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
357        return 0;
358    return security_ops->path_mknod(dir, dentry, mode, dev);
359}
360EXPORT_SYMBOL(security_path_mknod);
361
362int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
363{
364    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
365        return 0;
366    return security_ops->path_mkdir(dir, dentry, mode);
367}
368EXPORT_SYMBOL(security_path_mkdir);
369
370int security_path_rmdir(struct path *dir, struct dentry *dentry)
371{
372    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
373        return 0;
374    return security_ops->path_rmdir(dir, dentry);
375}
376
377int security_path_unlink(struct path *dir, struct dentry *dentry)
378{
379    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
380        return 0;
381    return security_ops->path_unlink(dir, dentry);
382}
383EXPORT_SYMBOL(security_path_unlink);
384
385int security_path_symlink(struct path *dir, struct dentry *dentry,
386              const char *old_name)
387{
388    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
389        return 0;
390    return security_ops->path_symlink(dir, dentry, old_name);
391}
392
393int security_path_link(struct dentry *old_dentry, struct path *new_dir,
394               struct dentry *new_dentry)
395{
396    if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
397        return 0;
398    return security_ops->path_link(old_dentry, new_dir, new_dentry);
399}
400
401int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
402             struct path *new_dir, struct dentry *new_dentry)
403{
404    if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
405             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
406        return 0;
407    return security_ops->path_rename(old_dir, old_dentry, new_dir,
408                     new_dentry);
409}
410EXPORT_SYMBOL(security_path_rename);
411
412int security_path_truncate(struct path *path)
413{
414    if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
415        return 0;
416    return security_ops->path_truncate(path);
417}
418
419int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
420            mode_t mode)
421{
422    if (unlikely(IS_PRIVATE(dentry->d_inode)))
423        return 0;
424    return security_ops->path_chmod(dentry, mnt, mode);
425}
426
427int security_path_chown(struct path *path, uid_t uid, gid_t gid)
428{
429    if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
430        return 0;
431    return security_ops->path_chown(path, uid, gid);
432}
433
434int security_path_chroot(struct path *path)
435{
436    return security_ops->path_chroot(path);
437}
438#endif
439
440int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
441{
442    if (unlikely(IS_PRIVATE(dir)))
443        return 0;
444    return security_ops->inode_create(dir, dentry, mode);
445}
446EXPORT_SYMBOL_GPL(security_inode_create);
447
448int security_inode_link(struct dentry *old_dentry, struct inode *dir,
449             struct dentry *new_dentry)
450{
451    if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
452        return 0;
453    return security_ops->inode_link(old_dentry, dir, new_dentry);
454}
455
456int security_inode_unlink(struct inode *dir, struct dentry *dentry)
457{
458    if (unlikely(IS_PRIVATE(dentry->d_inode)))
459        return 0;
460    return security_ops->inode_unlink(dir, dentry);
461}
462
463int security_inode_symlink(struct inode *dir, struct dentry *dentry,
464                const char *old_name)
465{
466    if (unlikely(IS_PRIVATE(dir)))
467        return 0;
468    return security_ops->inode_symlink(dir, dentry, old_name);
469}
470
471int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
472{
473    if (unlikely(IS_PRIVATE(dir)))
474        return 0;
475    return security_ops->inode_mkdir(dir, dentry, mode);
476}
477EXPORT_SYMBOL_GPL(security_inode_mkdir);
478
479int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
480{
481    if (unlikely(IS_PRIVATE(dentry->d_inode)))
482        return 0;
483    return security_ops->inode_rmdir(dir, dentry);
484}
485
486int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
487{
488    if (unlikely(IS_PRIVATE(dir)))
489        return 0;
490    return security_ops->inode_mknod(dir, dentry, mode, dev);
491}
492
493int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
494               struct inode *new_dir, struct dentry *new_dentry)
495{
496        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
497            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
498        return 0;
499    return security_ops->inode_rename(old_dir, old_dentry,
500                       new_dir, new_dentry);
501}
502
503int security_inode_readlink(struct dentry *dentry)
504{
505    if (unlikely(IS_PRIVATE(dentry->d_inode)))
506        return 0;
507    return security_ops->inode_readlink(dentry);
508}
509
510int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
511{
512    if (unlikely(IS_PRIVATE(dentry->d_inode)))
513        return 0;
514    return security_ops->inode_follow_link(dentry, nd);
515}
516
517int security_inode_permission(struct inode *inode, int mask)
518{
519    if (unlikely(IS_PRIVATE(inode)))
520        return 0;
521    return security_ops->inode_permission(inode, mask, 0);
522}
523
524int security_inode_exec_permission(struct inode *inode, unsigned int flags)
525{
526    if (unlikely(IS_PRIVATE(inode)))
527        return 0;
528    return security_ops->inode_permission(inode, MAY_EXEC, flags);
529}
530
531int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
532{
533    if (unlikely(IS_PRIVATE(dentry->d_inode)))
534        return 0;
535    return security_ops->inode_setattr(dentry, attr);
536}
537EXPORT_SYMBOL_GPL(security_inode_setattr);
538
539int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
540{
541    if (unlikely(IS_PRIVATE(dentry->d_inode)))
542        return 0;
543    return security_ops->inode_getattr(mnt, dentry);
544}
545
546int security_inode_setxattr(struct dentry *dentry, const char *name,
547                const void *value, size_t size, int flags)
548{
549    if (unlikely(IS_PRIVATE(dentry->d_inode)))
550        return 0;
551    return security_ops->inode_setxattr(dentry, name, value, size, flags);
552}
553
554void security_inode_post_setxattr(struct dentry *dentry, const char *name,
555                  const void *value, size_t size, int flags)
556{
557    if (unlikely(IS_PRIVATE(dentry->d_inode)))
558        return;
559    security_ops->inode_post_setxattr(dentry, name, value, size, flags);
560}
561
562int security_inode_getxattr(struct dentry *dentry, const char *name)
563{
564    if (unlikely(IS_PRIVATE(dentry->d_inode)))
565        return 0;
566    return security_ops->inode_getxattr(dentry, name);
567}
568
569int security_inode_listxattr(struct dentry *dentry)
570{
571    if (unlikely(IS_PRIVATE(dentry->d_inode)))
572        return 0;
573    return security_ops->inode_listxattr(dentry);
574}
575
576int security_inode_removexattr(struct dentry *dentry, const char *name)
577{
578    if (unlikely(IS_PRIVATE(dentry->d_inode)))
579        return 0;
580    return security_ops->inode_removexattr(dentry, name);
581}
582
583int security_inode_need_killpriv(struct dentry *dentry)
584{
585    return security_ops->inode_need_killpriv(dentry);
586}
587
588int security_inode_killpriv(struct dentry *dentry)
589{
590    return security_ops->inode_killpriv(dentry);
591}
592
593int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
594{
595    if (unlikely(IS_PRIVATE(inode)))
596        return -EOPNOTSUPP;
597    return security_ops->inode_getsecurity(inode, name, buffer, alloc);
598}
599
600int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
601{
602    if (unlikely(IS_PRIVATE(inode)))
603        return -EOPNOTSUPP;
604    return security_ops->inode_setsecurity(inode, name, value, size, flags);
605}
606
607int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
608{
609    if (unlikely(IS_PRIVATE(inode)))
610        return 0;
611    return security_ops->inode_listsecurity(inode, buffer, buffer_size);
612}
613
614void security_inode_getsecid(const struct inode *inode, u32 *secid)
615{
616    security_ops->inode_getsecid(inode, secid);
617}
618
619int security_file_permission(struct file *file, int mask)
620{
621    int ret;
622
623    ret = security_ops->file_permission(file, mask);
624    if (ret)
625        return ret;
626
627    return fsnotify_perm(file, mask);
628}
629
630int security_file_alloc(struct file *file)
631{
632    return security_ops->file_alloc_security(file);
633}
634
635void security_file_free(struct file *file)
636{
637    security_ops->file_free_security(file);
638}
639
640int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
641{
642    return security_ops->file_ioctl(file, cmd, arg);
643}
644
645int security_file_mmap(struct file *file, unsigned long reqprot,
646            unsigned long prot, unsigned long flags,
647            unsigned long addr, unsigned long addr_only)
648{
649    int ret;
650
651    ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
652    if (ret)
653        return ret;
654    return ima_file_mmap(file, prot);
655}
656
657int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
658                unsigned long prot)
659{
660    return security_ops->file_mprotect(vma, reqprot, prot);
661}
662
663int security_file_lock(struct file *file, unsigned int cmd)
664{
665    return security_ops->file_lock(file, cmd);
666}
667
668int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
669{
670    return security_ops->file_fcntl(file, cmd, arg);
671}
672
673int security_file_set_fowner(struct file *file)
674{
675    return security_ops->file_set_fowner(file);
676}
677
678int security_file_send_sigiotask(struct task_struct *tsk,
679                  struct fown_struct *fown, int sig)
680{
681    return security_ops->file_send_sigiotask(tsk, fown, sig);
682}
683
684int security_file_receive(struct file *file)
685{
686    return security_ops->file_receive(file);
687}
688
689int security_dentry_open(struct file *file, const struct cred *cred)
690{
691    int ret;
692
693    ret = security_ops->dentry_open(file, cred);
694    if (ret)
695        return ret;
696
697    return fsnotify_perm(file, MAY_OPEN);
698}
699
700int security_task_create(unsigned long clone_flags)
701{
702    return security_ops->task_create(clone_flags);
703}
704
705int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
706{
707    return security_ops->cred_alloc_blank(cred, gfp);
708}
709
710void security_cred_free(struct cred *cred)
711{
712    security_ops->cred_free(cred);
713}
714
715int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
716{
717    return security_ops->cred_prepare(new, old, gfp);
718}
719
720void security_transfer_creds(struct cred *new, const struct cred *old)
721{
722    security_ops->cred_transfer(new, old);
723}
724
725int security_kernel_act_as(struct cred *new, u32 secid)
726{
727    return security_ops->kernel_act_as(new, secid);
728}
729
730int security_kernel_create_files_as(struct cred *new, struct inode *inode)
731{
732    return security_ops->kernel_create_files_as(new, inode);
733}
734
735int security_kernel_module_request(char *kmod_name)
736{
737    return security_ops->kernel_module_request(kmod_name);
738}
739
740int security_task_fix_setuid(struct cred *new, const struct cred *old,
741                 int flags)
742{
743    return security_ops->task_fix_setuid(new, old, flags);
744}
745
746int security_task_setpgid(struct task_struct *p, pid_t pgid)
747{
748    return security_ops->task_setpgid(p, pgid);
749}
750
751int security_task_getpgid(struct task_struct *p)
752{
753    return security_ops->task_getpgid(p);
754}
755
756int security_task_getsid(struct task_struct *p)
757{
758    return security_ops->task_getsid(p);
759}
760
761void security_task_getsecid(struct task_struct *p, u32 *secid)
762{
763    security_ops->task_getsecid(p, secid);
764}
765EXPORT_SYMBOL(security_task_getsecid);
766
767int security_task_setnice(struct task_struct *p, int nice)
768{
769    return security_ops->task_setnice(p, nice);
770}
771
772int security_task_setioprio(struct task_struct *p, int ioprio)
773{
774    return security_ops->task_setioprio(p, ioprio);
775}
776
777int security_task_getioprio(struct task_struct *p)
778{
779    return security_ops->task_getioprio(p);
780}
781
782int security_task_setrlimit(struct task_struct *p, unsigned int resource,
783        struct rlimit *new_rlim)
784{
785    return security_ops->task_setrlimit(p, resource, new_rlim);
786}
787
788int security_task_setscheduler(struct task_struct *p)
789{
790    return security_ops->task_setscheduler(p);
791}
792
793int security_task_getscheduler(struct task_struct *p)
794{
795    return security_ops->task_getscheduler(p);
796}
797
798int security_task_movememory(struct task_struct *p)
799{
800    return security_ops->task_movememory(p);
801}
802
803int security_task_kill(struct task_struct *p, struct siginfo *info,
804            int sig, u32 secid)
805{
806    return security_ops->task_kill(p, info, sig, secid);
807}
808
809int security_task_wait(struct task_struct *p)
810{
811    return security_ops->task_wait(p);
812}
813
814int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
815             unsigned long arg4, unsigned long arg5)
816{
817    return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
818}
819
820void security_task_to_inode(struct task_struct *p, struct inode *inode)
821{
822    security_ops->task_to_inode(p, inode);
823}
824
825int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
826{
827    return security_ops->ipc_permission(ipcp, flag);
828}
829
830void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
831{
832    security_ops->ipc_getsecid(ipcp, secid);
833}
834
835int security_msg_msg_alloc(struct msg_msg *msg)
836{
837    return security_ops->msg_msg_alloc_security(msg);
838}
839
840void security_msg_msg_free(struct msg_msg *msg)
841{
842    security_ops->msg_msg_free_security(msg);
843}
844
845int security_msg_queue_alloc(struct msg_queue *msq)
846{
847    return security_ops->msg_queue_alloc_security(msq);
848}
849
850void security_msg_queue_free(struct msg_queue *msq)
851{
852    security_ops->msg_queue_free_security(msq);
853}
854
855int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
856{
857    return security_ops->msg_queue_associate(msq, msqflg);
858}
859
860int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
861{
862    return security_ops->msg_queue_msgctl(msq, cmd);
863}
864
865int security_msg_queue_msgsnd(struct msg_queue *msq,
866                   struct msg_msg *msg, int msqflg)
867{
868    return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
869}
870
871int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
872                   struct task_struct *target, long type, int mode)
873{
874    return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
875}
876
877int security_shm_alloc(struct shmid_kernel *shp)
878{
879    return security_ops->shm_alloc_security(shp);
880}
881
882void security_shm_free(struct shmid_kernel *shp)
883{
884    security_ops->shm_free_security(shp);
885}
886
887int security_shm_associate(struct shmid_kernel *shp, int shmflg)
888{
889    return security_ops->shm_associate(shp, shmflg);
890}
891
892int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
893{
894    return security_ops->shm_shmctl(shp, cmd);
895}
896
897int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
898{
899    return security_ops->shm_shmat(shp, shmaddr, shmflg);
900}
901
902int security_sem_alloc(struct sem_array *sma)
903{
904    return security_ops->sem_alloc_security(sma);
905}
906
907void security_sem_free(struct sem_array *sma)
908{
909    security_ops->sem_free_security(sma);
910}
911
912int security_sem_associate(struct sem_array *sma, int semflg)
913{
914    return security_ops->sem_associate(sma, semflg);
915}
916
917int security_sem_semctl(struct sem_array *sma, int cmd)
918{
919    return security_ops->sem_semctl(sma, cmd);
920}
921
922int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
923            unsigned nsops, int alter)
924{
925    return security_ops->sem_semop(sma, sops, nsops, alter);
926}
927
928void security_d_instantiate(struct dentry *dentry, struct inode *inode)
929{
930    if (unlikely(inode && IS_PRIVATE(inode)))
931        return;
932    security_ops->d_instantiate(dentry, inode);
933}
934EXPORT_SYMBOL(security_d_instantiate);
935
936int security_getprocattr(struct task_struct *p, char *name, char **value)
937{
938    return security_ops->getprocattr(p, name, value);
939}
940
941int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
942{
943    return security_ops->setprocattr(p, name, value, size);
944}
945
946int security_netlink_send(struct sock *sk, struct sk_buff *skb)
947{
948    return security_ops->netlink_send(sk, skb);
949}
950
951int security_netlink_recv(struct sk_buff *skb, int cap)
952{
953    return security_ops->netlink_recv(skb, cap);
954}
955EXPORT_SYMBOL(security_netlink_recv);
956
957int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
958{
959    return security_ops->secid_to_secctx(secid, secdata, seclen);
960}
961EXPORT_SYMBOL(security_secid_to_secctx);
962
963int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
964{
965    return security_ops->secctx_to_secid(secdata, seclen, secid);
966}
967EXPORT_SYMBOL(security_secctx_to_secid);
968
969void security_release_secctx(char *secdata, u32 seclen)
970{
971    security_ops->release_secctx(secdata, seclen);
972}
973EXPORT_SYMBOL(security_release_secctx);
974
975int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
976{
977    return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
978}
979EXPORT_SYMBOL(security_inode_notifysecctx);
980
981int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
982{
983    return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
984}
985EXPORT_SYMBOL(security_inode_setsecctx);
986
987int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
988{
989    return security_ops->inode_getsecctx(inode, ctx, ctxlen);
990}
991EXPORT_SYMBOL(security_inode_getsecctx);
992
993#ifdef CONFIG_SECURITY_NETWORK
994
995int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
996{
997    return security_ops->unix_stream_connect(sock, other, newsk);
998}
999EXPORT_SYMBOL(security_unix_stream_connect);
1000
1001int security_unix_may_send(struct socket *sock, struct socket *other)
1002{
1003    return security_ops->unix_may_send(sock, other);
1004}
1005EXPORT_SYMBOL(security_unix_may_send);
1006
1007int security_socket_create(int family, int type, int protocol, int kern)
1008{
1009    return security_ops->socket_create(family, type, protocol, kern);
1010}
1011
1012int security_socket_post_create(struct socket *sock, int family,
1013                int type, int protocol, int kern)
1014{
1015    return security_ops->socket_post_create(sock, family, type,
1016                        protocol, kern);
1017}
1018
1019int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1020{
1021    return security_ops->socket_bind(sock, address, addrlen);
1022}
1023
1024int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1025{
1026    return security_ops->socket_connect(sock, address, addrlen);
1027}
1028
1029int security_socket_listen(struct socket *sock, int backlog)
1030{
1031    return security_ops->socket_listen(sock, backlog);
1032}
1033
1034int security_socket_accept(struct socket *sock, struct socket *newsock)
1035{
1036    return security_ops->socket_accept(sock, newsock);
1037}
1038
1039int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1040{
1041    return security_ops->socket_sendmsg(sock, msg, size);
1042}
1043
1044int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1045                int size, int flags)
1046{
1047    return security_ops->socket_recvmsg(sock, msg, size, flags);
1048}
1049
1050int security_socket_getsockname(struct socket *sock)
1051{
1052    return security_ops->socket_getsockname(sock);
1053}
1054
1055int security_socket_getpeername(struct socket *sock)
1056{
1057    return security_ops->socket_getpeername(sock);
1058}
1059
1060int security_socket_getsockopt(struct socket *sock, int level, int optname)
1061{
1062    return security_ops->socket_getsockopt(sock, level, optname);
1063}
1064
1065int security_socket_setsockopt(struct socket *sock, int level, int optname)
1066{
1067    return security_ops->socket_setsockopt(sock, level, optname);
1068}
1069
1070int security_socket_shutdown(struct socket *sock, int how)
1071{
1072    return security_ops->socket_shutdown(sock, how);
1073}
1074
1075int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1076{
1077    return security_ops->socket_sock_rcv_skb(sk, skb);
1078}
1079EXPORT_SYMBOL(security_sock_rcv_skb);
1080
1081int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1082                      int __user *optlen, unsigned len)
1083{
1084    return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1085}
1086
1087int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1088{
1089    return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1090}
1091EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1092
1093int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1094{
1095    return security_ops->sk_alloc_security(sk, family, priority);
1096}
1097
1098void security_sk_free(struct sock *sk)
1099{
1100    security_ops->sk_free_security(sk);
1101}
1102
1103void security_sk_clone(const struct sock *sk, struct sock *newsk)
1104{
1105    security_ops->sk_clone_security(sk, newsk);
1106}
1107
1108void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1109{
1110    security_ops->sk_getsecid(sk, &fl->flowi_secid);
1111}
1112EXPORT_SYMBOL(security_sk_classify_flow);
1113
1114void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1115{
1116    security_ops->req_classify_flow(req, fl);
1117}
1118EXPORT_SYMBOL(security_req_classify_flow);
1119
1120void security_sock_graft(struct sock *sk, struct socket *parent)
1121{
1122    security_ops->sock_graft(sk, parent);
1123}
1124EXPORT_SYMBOL(security_sock_graft);
1125
1126int security_inet_conn_request(struct sock *sk,
1127            struct sk_buff *skb, struct request_sock *req)
1128{
1129    return security_ops->inet_conn_request(sk, skb, req);
1130}
1131EXPORT_SYMBOL(security_inet_conn_request);
1132
1133void security_inet_csk_clone(struct sock *newsk,
1134            const struct request_sock *req)
1135{
1136    security_ops->inet_csk_clone(newsk, req);
1137}
1138
1139void security_inet_conn_established(struct sock *sk,
1140            struct sk_buff *skb)
1141{
1142    security_ops->inet_conn_established(sk, skb);
1143}
1144
1145int security_secmark_relabel_packet(u32 secid)
1146{
1147    return security_ops->secmark_relabel_packet(secid);
1148}
1149EXPORT_SYMBOL(security_secmark_relabel_packet);
1150
1151void security_secmark_refcount_inc(void)
1152{
1153    security_ops->secmark_refcount_inc();
1154}
1155EXPORT_SYMBOL(security_secmark_refcount_inc);
1156
1157void security_secmark_refcount_dec(void)
1158{
1159    security_ops->secmark_refcount_dec();
1160}
1161EXPORT_SYMBOL(security_secmark_refcount_dec);
1162
1163int security_tun_dev_create(void)
1164{
1165    return security_ops->tun_dev_create();
1166}
1167EXPORT_SYMBOL(security_tun_dev_create);
1168
1169void security_tun_dev_post_create(struct sock *sk)
1170{
1171    return security_ops->tun_dev_post_create(sk);
1172}
1173EXPORT_SYMBOL(security_tun_dev_post_create);
1174
1175int security_tun_dev_attach(struct sock *sk)
1176{
1177    return security_ops->tun_dev_attach(sk);
1178}
1179EXPORT_SYMBOL(security_tun_dev_attach);
1180
1181#endif /* CONFIG_SECURITY_NETWORK */
1182
1183#ifdef CONFIG_SECURITY_NETWORK_XFRM
1184
1185int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1186{
1187    return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1188}
1189EXPORT_SYMBOL(security_xfrm_policy_alloc);
1190
1191int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1192                  struct xfrm_sec_ctx **new_ctxp)
1193{
1194    return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1195}
1196
1197void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1198{
1199    security_ops->xfrm_policy_free_security(ctx);
1200}
1201EXPORT_SYMBOL(security_xfrm_policy_free);
1202
1203int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1204{
1205    return security_ops->xfrm_policy_delete_security(ctx);
1206}
1207
1208int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1209{
1210    return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1211}
1212EXPORT_SYMBOL(security_xfrm_state_alloc);
1213
1214int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1215                      struct xfrm_sec_ctx *polsec, u32 secid)
1216{
1217    if (!polsec)
1218        return 0;
1219    /*
1220     * We want the context to be taken from secid which is usually
1221     * from the sock.
1222     */
1223    return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1224}
1225
1226int security_xfrm_state_delete(struct xfrm_state *x)
1227{
1228    return security_ops->xfrm_state_delete_security(x);
1229}
1230EXPORT_SYMBOL(security_xfrm_state_delete);
1231
1232void security_xfrm_state_free(struct xfrm_state *x)
1233{
1234    security_ops->xfrm_state_free_security(x);
1235}
1236
1237int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1238{
1239    return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1240}
1241
1242int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1243                       struct xfrm_policy *xp,
1244                       const struct flowi *fl)
1245{
1246    return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1247}
1248
1249int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1250{
1251    return security_ops->xfrm_decode_session(skb, secid, 1);
1252}
1253
1254void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1255{
1256    int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1257
1258    BUG_ON(rc);
1259}
1260EXPORT_SYMBOL(security_skb_classify_flow);
1261
1262#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1263
1264#ifdef CONFIG_KEYS
1265
1266int security_key_alloc(struct key *key, const struct cred *cred,
1267               unsigned long flags)
1268{
1269    return security_ops->key_alloc(key, cred, flags);
1270}
1271
1272void security_key_free(struct key *key)
1273{
1274    security_ops->key_free(key);
1275}
1276
1277int security_key_permission(key_ref_t key_ref,
1278                const struct cred *cred, key_perm_t perm)
1279{
1280    return security_ops->key_permission(key_ref, cred, perm);
1281}
1282
1283int security_key_getsecurity(struct key *key, char **_buffer)
1284{
1285    return security_ops->key_getsecurity(key, _buffer);
1286}
1287
1288#endif /* CONFIG_KEYS */
1289
1290#ifdef CONFIG_AUDIT
1291
1292int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1293{
1294    return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1295}
1296
1297int security_audit_rule_known(struct audit_krule *krule)
1298{
1299    return security_ops->audit_rule_known(krule);
1300}
1301
1302void security_audit_rule_free(void *lsmrule)
1303{
1304    security_ops->audit_rule_free(lsmrule);
1305}
1306
1307int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1308                  struct audit_context *actx)
1309{
1310    return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1311}
1312
1313#endif /* CONFIG_AUDIT */
1314

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