Root/security/security.c

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

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