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/integrity.h>
20#include <linux/ima.h>
21#include <linux/evm.h>
22#include <linux/fsnotify.h>
23#include <net/flow.h>
24
25#define MAX_LSM_EVM_XATTR 2
26
27/* Boot-time LSM user choice */
28static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
29    CONFIG_DEFAULT_SECURITY;
30
31static struct security_operations *security_ops;
32static struct security_operations default_security_ops = {
33    .name = "default",
34};
35
36static inline int __init verify(struct security_operations *ops)
37{
38    /* verify the security_operations structure exists */
39    if (!ops)
40        return -EINVAL;
41    security_fixup_ops(ops);
42    return 0;
43}
44
45static void __init do_security_initcalls(void)
46{
47    initcall_t *call;
48    call = __security_initcall_start;
49    while (call < __security_initcall_end) {
50        (*call) ();
51        call++;
52    }
53}
54
55/**
56 * security_init - initializes the security framework
57 *
58 * This should be called early in the kernel initialization sequence.
59 */
60int __init security_init(void)
61{
62    printk(KERN_INFO "Security Framework initialized\n");
63
64    security_fixup_ops(&default_security_ops);
65    security_ops = &default_security_ops;
66    do_security_initcalls();
67
68    return 0;
69}
70
71void reset_security_ops(void)
72{
73    security_ops = &default_security_ops;
74}
75
76/* Save user chosen LSM */
77static int __init choose_lsm(char *str)
78{
79    strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
80    return 1;
81}
82__setup("security=", choose_lsm);
83
84/**
85 * security_module_enable - Load given security module on boot ?
86 * @ops: a pointer to the struct security_operations that is to be checked.
87 *
88 * Each LSM must pass this method before registering its own operations
89 * to avoid security registration races. This method may also be used
90 * to check if your LSM is currently loaded during kernel initialization.
91 *
92 * Return true if:
93 * -The passed LSM is the one chosen by user at boot time,
94 * -or the passed LSM is configured as the default and the user did not
95 * choose an alternate LSM at boot time.
96 * Otherwise, return false.
97 */
98int __init security_module_enable(struct security_operations *ops)
99{
100    return !strcmp(ops->name, chosen_lsm);
101}
102
103/**
104 * register_security - registers a security framework with the kernel
105 * @ops: a pointer to the struct security_options that is to be registered
106 *
107 * This function allows a security module to register itself with the
108 * kernel security subsystem. Some rudimentary checking is done on the @ops
109 * value passed to this function. You'll need to check first if your LSM
110 * is allowed to register its @ops by calling security_module_enable(@ops).
111 *
112 * If there is already a security module registered with the kernel,
113 * an error will be returned. Otherwise %0 is returned on success.
114 */
115int __init register_security(struct security_operations *ops)
116{
117    if (verify(ops)) {
118        printk(KERN_DEBUG "%s could not verify "
119               "security_operations structure.\n", __func__);
120        return -EINVAL;
121    }
122
123    if (security_ops != &default_security_ops)
124        return -EAGAIN;
125
126    security_ops = ops;
127
128    return 0;
129}
130
131/* Security operations */
132
133int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
134{
135    return security_ops->ptrace_access_check(child, mode);
136}
137
138int security_ptrace_traceme(struct task_struct *parent)
139{
140    return security_ops->ptrace_traceme(parent);
141}
142
143int security_capget(struct task_struct *target,
144             kernel_cap_t *effective,
145             kernel_cap_t *inheritable,
146             kernel_cap_t *permitted)
147{
148    return security_ops->capget(target, effective, inheritable, permitted);
149}
150
151int security_capset(struct cred *new, const struct cred *old,
152            const kernel_cap_t *effective,
153            const kernel_cap_t *inheritable,
154            const kernel_cap_t *permitted)
155{
156    return security_ops->capset(new, old,
157                    effective, inheritable, permitted);
158}
159
160int security_capable(const struct cred *cred, struct user_namespace *ns,
161             int cap)
162{
163    return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
164}
165
166int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
167                 int cap)
168{
169    return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
170}
171
172int security_quotactl(int cmds, int type, int id, struct super_block *sb)
173{
174    return security_ops->quotactl(cmds, type, id, sb);
175}
176
177int security_quota_on(struct dentry *dentry)
178{
179    return security_ops->quota_on(dentry);
180}
181
182int security_syslog(int type)
183{
184    return security_ops->syslog(type);
185}
186
187int security_settime(const struct timespec *ts, const struct timezone *tz)
188{
189    return security_ops->settime(ts, tz);
190}
191
192int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
193{
194    return security_ops->vm_enough_memory(mm, pages);
195}
196
197int security_bprm_set_creds(struct linux_binprm *bprm)
198{
199    return security_ops->bprm_set_creds(bprm);
200}
201
202int security_bprm_check(struct linux_binprm *bprm)
203{
204    int ret;
205
206    ret = security_ops->bprm_check_security(bprm);
207    if (ret)
208        return ret;
209    return ima_bprm_check(bprm);
210}
211
212void security_bprm_committing_creds(struct linux_binprm *bprm)
213{
214    security_ops->bprm_committing_creds(bprm);
215}
216
217void security_bprm_committed_creds(struct linux_binprm *bprm)
218{
219    security_ops->bprm_committed_creds(bprm);
220}
221
222int security_bprm_secureexec(struct linux_binprm *bprm)
223{
224    return security_ops->bprm_secureexec(bprm);
225}
226
227int security_sb_alloc(struct super_block *sb)
228{
229    return security_ops->sb_alloc_security(sb);
230}
231
232void security_sb_free(struct super_block *sb)
233{
234    security_ops->sb_free_security(sb);
235}
236
237int security_sb_copy_data(char *orig, char *copy)
238{
239    return security_ops->sb_copy_data(orig, copy);
240}
241EXPORT_SYMBOL(security_sb_copy_data);
242
243int security_sb_remount(struct super_block *sb, void *data)
244{
245    return security_ops->sb_remount(sb, data);
246}
247
248int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
249{
250    return security_ops->sb_kern_mount(sb, flags, data);
251}
252
253int security_sb_show_options(struct seq_file *m, struct super_block *sb)
254{
255    return security_ops->sb_show_options(m, sb);
256}
257
258int security_sb_statfs(struct dentry *dentry)
259{
260    return security_ops->sb_statfs(dentry);
261}
262
263int security_sb_mount(char *dev_name, struct path *path,
264                       char *type, unsigned long flags, void *data)
265{
266    return security_ops->sb_mount(dev_name, path, type, flags, data);
267}
268
269int security_sb_umount(struct vfsmount *mnt, int flags)
270{
271    return security_ops->sb_umount(mnt, flags);
272}
273
274int security_sb_pivotroot(struct path *old_path, struct path *new_path)
275{
276    return security_ops->sb_pivotroot(old_path, new_path);
277}
278
279int security_sb_set_mnt_opts(struct super_block *sb,
280                struct security_mnt_opts *opts)
281{
282    return security_ops->sb_set_mnt_opts(sb, opts);
283}
284EXPORT_SYMBOL(security_sb_set_mnt_opts);
285
286void security_sb_clone_mnt_opts(const struct super_block *oldsb,
287                struct super_block *newsb)
288{
289    security_ops->sb_clone_mnt_opts(oldsb, newsb);
290}
291EXPORT_SYMBOL(security_sb_clone_mnt_opts);
292
293int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
294{
295    return security_ops->sb_parse_opts_str(options, opts);
296}
297EXPORT_SYMBOL(security_sb_parse_opts_str);
298
299int security_inode_alloc(struct inode *inode)
300{
301    inode->i_security = NULL;
302    return security_ops->inode_alloc_security(inode);
303}
304
305void security_inode_free(struct inode *inode)
306{
307    integrity_inode_free(inode);
308    security_ops->inode_free_security(inode);
309}
310
311int security_inode_init_security(struct inode *inode, struct inode *dir,
312                 const struct qstr *qstr,
313                 const initxattrs initxattrs, void *fs_data)
314{
315    struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
316    struct xattr *lsm_xattr, *evm_xattr, *xattr;
317    int ret;
318
319    if (unlikely(IS_PRIVATE(inode)))
320        return 0;
321
322    memset(new_xattrs, 0, sizeof new_xattrs);
323    if (!initxattrs)
324        return security_ops->inode_init_security(inode, dir, qstr,
325                             NULL, NULL, NULL);
326    lsm_xattr = new_xattrs;
327    ret = security_ops->inode_init_security(inode, dir, qstr,
328                        &lsm_xattr->name,
329                        &lsm_xattr->value,
330                        &lsm_xattr->value_len);
331    if (ret)
332        goto out;
333
334    evm_xattr = lsm_xattr + 1;
335    ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
336    if (ret)
337        goto out;
338    ret = initxattrs(inode, new_xattrs, fs_data);
339out:
340    for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
341        kfree(xattr->name);
342        kfree(xattr->value);
343    }
344    return (ret == -EOPNOTSUPP) ? 0 : ret;
345}
346EXPORT_SYMBOL(security_inode_init_security);
347
348int security_old_inode_init_security(struct inode *inode, struct inode *dir,
349                     const struct qstr *qstr, char **name,
350                     void **value, size_t *len)
351{
352    if (unlikely(IS_PRIVATE(inode)))
353        return -EOPNOTSUPP;
354    return security_ops->inode_init_security(inode, dir, qstr, name, value,
355                         len);
356}
357EXPORT_SYMBOL(security_old_inode_init_security);
358
359#ifdef CONFIG_SECURITY_PATH
360int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
361            unsigned int dev)
362{
363    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
364        return 0;
365    return security_ops->path_mknod(dir, dentry, mode, dev);
366}
367EXPORT_SYMBOL(security_path_mknod);
368
369int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
370{
371    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
372        return 0;
373    return security_ops->path_mkdir(dir, dentry, mode);
374}
375EXPORT_SYMBOL(security_path_mkdir);
376
377int security_path_rmdir(struct path *dir, struct dentry *dentry)
378{
379    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
380        return 0;
381    return security_ops->path_rmdir(dir, dentry);
382}
383
384int security_path_unlink(struct path *dir, struct dentry *dentry)
385{
386    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
387        return 0;
388    return security_ops->path_unlink(dir, dentry);
389}
390EXPORT_SYMBOL(security_path_unlink);
391
392int security_path_symlink(struct path *dir, struct dentry *dentry,
393              const char *old_name)
394{
395    if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
396        return 0;
397    return security_ops->path_symlink(dir, dentry, old_name);
398}
399
400int security_path_link(struct dentry *old_dentry, struct path *new_dir,
401               struct dentry *new_dentry)
402{
403    if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
404        return 0;
405    return security_ops->path_link(old_dentry, new_dir, new_dentry);
406}
407
408int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
409             struct path *new_dir, struct dentry *new_dentry)
410{
411    if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
412             (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
413        return 0;
414    return security_ops->path_rename(old_dir, old_dentry, new_dir,
415                     new_dentry);
416}
417EXPORT_SYMBOL(security_path_rename);
418
419int security_path_truncate(struct path *path)
420{
421    if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
422        return 0;
423    return security_ops->path_truncate(path);
424}
425
426int security_path_chmod(struct path *path, umode_t mode)
427{
428    if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
429        return 0;
430    return security_ops->path_chmod(path, mode);
431}
432
433int security_path_chown(struct path *path, uid_t uid, gid_t gid)
434{
435    if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
436        return 0;
437    return security_ops->path_chown(path, uid, gid);
438}
439
440int security_path_chroot(struct path *path)
441{
442    return security_ops->path_chroot(path);
443}
444#endif
445
446int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
447{
448    if (unlikely(IS_PRIVATE(dir)))
449        return 0;
450    return security_ops->inode_create(dir, dentry, mode);
451}
452EXPORT_SYMBOL_GPL(security_inode_create);
453
454int security_inode_link(struct dentry *old_dentry, struct inode *dir,
455             struct dentry *new_dentry)
456{
457    if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
458        return 0;
459    return security_ops->inode_link(old_dentry, dir, new_dentry);
460}
461
462int security_inode_unlink(struct inode *dir, struct dentry *dentry)
463{
464    if (unlikely(IS_PRIVATE(dentry->d_inode)))
465        return 0;
466    return security_ops->inode_unlink(dir, dentry);
467}
468
469int security_inode_symlink(struct inode *dir, struct dentry *dentry,
470                const char *old_name)
471{
472    if (unlikely(IS_PRIVATE(dir)))
473        return 0;
474    return security_ops->inode_symlink(dir, dentry, old_name);
475}
476
477int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
478{
479    if (unlikely(IS_PRIVATE(dir)))
480        return 0;
481    return security_ops->inode_mkdir(dir, dentry, mode);
482}
483EXPORT_SYMBOL_GPL(security_inode_mkdir);
484
485int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
486{
487    if (unlikely(IS_PRIVATE(dentry->d_inode)))
488        return 0;
489    return security_ops->inode_rmdir(dir, dentry);
490}
491
492int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
493{
494    if (unlikely(IS_PRIVATE(dir)))
495        return 0;
496    return security_ops->inode_mknod(dir, dentry, mode, dev);
497}
498
499int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
500               struct inode *new_dir, struct dentry *new_dentry)
501{
502        if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
503            (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
504        return 0;
505    return security_ops->inode_rename(old_dir, old_dentry,
506                       new_dir, new_dentry);
507}
508
509int security_inode_readlink(struct dentry *dentry)
510{
511    if (unlikely(IS_PRIVATE(dentry->d_inode)))
512        return 0;
513    return security_ops->inode_readlink(dentry);
514}
515
516int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
517{
518    if (unlikely(IS_PRIVATE(dentry->d_inode)))
519        return 0;
520    return security_ops->inode_follow_link(dentry, nd);
521}
522
523int security_inode_permission(struct inode *inode, int mask)
524{
525    if (unlikely(IS_PRIVATE(inode)))
526        return 0;
527    return security_ops->inode_permission(inode, mask);
528}
529
530int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
531{
532    int ret;
533
534    if (unlikely(IS_PRIVATE(dentry->d_inode)))
535        return 0;
536    ret = security_ops->inode_setattr(dentry, attr);
537    if (ret)
538        return ret;
539    return evm_inode_setattr(dentry, attr);
540}
541EXPORT_SYMBOL_GPL(security_inode_setattr);
542
543int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
544{
545    if (unlikely(IS_PRIVATE(dentry->d_inode)))
546        return 0;
547    return security_ops->inode_getattr(mnt, dentry);
548}
549
550int security_inode_setxattr(struct dentry *dentry, const char *name,
551                const void *value, size_t size, int flags)
552{
553    int ret;
554
555    if (unlikely(IS_PRIVATE(dentry->d_inode)))
556        return 0;
557    ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
558    if (ret)
559        return ret;
560    return evm_inode_setxattr(dentry, name, value, size);
561}
562
563void security_inode_post_setxattr(struct dentry *dentry, const char *name,
564                  const void *value, size_t size, int flags)
565{
566    if (unlikely(IS_PRIVATE(dentry->d_inode)))
567        return;
568    security_ops->inode_post_setxattr(dentry, name, value, size, flags);
569    evm_inode_post_setxattr(dentry, name, value, size);
570}
571
572int security_inode_getxattr(struct dentry *dentry, const char *name)
573{
574    if (unlikely(IS_PRIVATE(dentry->d_inode)))
575        return 0;
576    return security_ops->inode_getxattr(dentry, name);
577}
578
579int security_inode_listxattr(struct dentry *dentry)
580{
581    if (unlikely(IS_PRIVATE(dentry->d_inode)))
582        return 0;
583    return security_ops->inode_listxattr(dentry);
584}
585
586int security_inode_removexattr(struct dentry *dentry, const char *name)
587{
588    int ret;
589
590    if (unlikely(IS_PRIVATE(dentry->d_inode)))
591        return 0;
592    ret = security_ops->inode_removexattr(dentry, name);
593    if (ret)
594        return ret;
595    return evm_inode_removexattr(dentry, name);
596}
597
598int security_inode_need_killpriv(struct dentry *dentry)
599{
600    return security_ops->inode_need_killpriv(dentry);
601}
602
603int security_inode_killpriv(struct dentry *dentry)
604{
605    return security_ops->inode_killpriv(dentry);
606}
607
608int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
609{
610    if (unlikely(IS_PRIVATE(inode)))
611        return -EOPNOTSUPP;
612    return security_ops->inode_getsecurity(inode, name, buffer, alloc);
613}
614
615int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
616{
617    if (unlikely(IS_PRIVATE(inode)))
618        return -EOPNOTSUPP;
619    return security_ops->inode_setsecurity(inode, name, value, size, flags);
620}
621
622int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
623{
624    if (unlikely(IS_PRIVATE(inode)))
625        return 0;
626    return security_ops->inode_listsecurity(inode, buffer, buffer_size);
627}
628
629void security_inode_getsecid(const struct inode *inode, u32 *secid)
630{
631    security_ops->inode_getsecid(inode, secid);
632}
633
634int security_file_permission(struct file *file, int mask)
635{
636    int ret;
637
638    ret = security_ops->file_permission(file, mask);
639    if (ret)
640        return ret;
641
642    return fsnotify_perm(file, mask);
643}
644
645int security_file_alloc(struct file *file)
646{
647    return security_ops->file_alloc_security(file);
648}
649
650void security_file_free(struct file *file)
651{
652    security_ops->file_free_security(file);
653}
654
655int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
656{
657    return security_ops->file_ioctl(file, cmd, arg);
658}
659
660int security_file_mmap(struct file *file, unsigned long reqprot,
661            unsigned long prot, unsigned long flags,
662            unsigned long addr, unsigned long addr_only)
663{
664    int ret;
665
666    ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
667    if (ret)
668        return ret;
669    return ima_file_mmap(file, prot);
670}
671
672int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
673                unsigned long prot)
674{
675    return security_ops->file_mprotect(vma, reqprot, prot);
676}
677
678int security_file_lock(struct file *file, unsigned int cmd)
679{
680    return security_ops->file_lock(file, cmd);
681}
682
683int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
684{
685    return security_ops->file_fcntl(file, cmd, arg);
686}
687
688int security_file_set_fowner(struct file *file)
689{
690    return security_ops->file_set_fowner(file);
691}
692
693int security_file_send_sigiotask(struct task_struct *tsk,
694                  struct fown_struct *fown, int sig)
695{
696    return security_ops->file_send_sigiotask(tsk, fown, sig);
697}
698
699int security_file_receive(struct file *file)
700{
701    return security_ops->file_receive(file);
702}
703
704int security_dentry_open(struct file *file, const struct cred *cred)
705{
706    int ret;
707
708    ret = security_ops->dentry_open(file, cred);
709    if (ret)
710        return ret;
711
712    return fsnotify_perm(file, MAY_OPEN);
713}
714
715int security_task_create(unsigned long clone_flags)
716{
717    return security_ops->task_create(clone_flags);
718}
719
720void security_task_free(struct task_struct *task)
721{
722    security_ops->task_free(task);
723}
724
725int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
726{
727    return security_ops->cred_alloc_blank(cred, gfp);
728}
729
730void security_cred_free(struct cred *cred)
731{
732    security_ops->cred_free(cred);
733}
734
735int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
736{
737    return security_ops->cred_prepare(new, old, gfp);
738}
739
740void security_transfer_creds(struct cred *new, const struct cred *old)
741{
742    security_ops->cred_transfer(new, old);
743}
744
745int security_kernel_act_as(struct cred *new, u32 secid)
746{
747    return security_ops->kernel_act_as(new, secid);
748}
749
750int security_kernel_create_files_as(struct cred *new, struct inode *inode)
751{
752    return security_ops->kernel_create_files_as(new, inode);
753}
754
755int security_kernel_module_request(char *kmod_name)
756{
757    return security_ops->kernel_module_request(kmod_name);
758}
759
760int security_task_fix_setuid(struct cred *new, const struct cred *old,
761                 int flags)
762{
763    return security_ops->task_fix_setuid(new, old, flags);
764}
765
766int security_task_setpgid(struct task_struct *p, pid_t pgid)
767{
768    return security_ops->task_setpgid(p, pgid);
769}
770
771int security_task_getpgid(struct task_struct *p)
772{
773    return security_ops->task_getpgid(p);
774}
775
776int security_task_getsid(struct task_struct *p)
777{
778    return security_ops->task_getsid(p);
779}
780
781void security_task_getsecid(struct task_struct *p, u32 *secid)
782{
783    security_ops->task_getsecid(p, secid);
784}
785EXPORT_SYMBOL(security_task_getsecid);
786
787int security_task_setnice(struct task_struct *p, int nice)
788{
789    return security_ops->task_setnice(p, nice);
790}
791
792int security_task_setioprio(struct task_struct *p, int ioprio)
793{
794    return security_ops->task_setioprio(p, ioprio);
795}
796
797int security_task_getioprio(struct task_struct *p)
798{
799    return security_ops->task_getioprio(p);
800}
801
802int security_task_setrlimit(struct task_struct *p, unsigned int resource,
803        struct rlimit *new_rlim)
804{
805    return security_ops->task_setrlimit(p, resource, new_rlim);
806}
807
808int security_task_setscheduler(struct task_struct *p)
809{
810    return security_ops->task_setscheduler(p);
811}
812
813int security_task_getscheduler(struct task_struct *p)
814{
815    return security_ops->task_getscheduler(p);
816}
817
818int security_task_movememory(struct task_struct *p)
819{
820    return security_ops->task_movememory(p);
821}
822
823int security_task_kill(struct task_struct *p, struct siginfo *info,
824            int sig, u32 secid)
825{
826    return security_ops->task_kill(p, info, sig, secid);
827}
828
829int security_task_wait(struct task_struct *p)
830{
831    return security_ops->task_wait(p);
832}
833
834int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
835             unsigned long arg4, unsigned long arg5)
836{
837    return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
838}
839
840void security_task_to_inode(struct task_struct *p, struct inode *inode)
841{
842    security_ops->task_to_inode(p, inode);
843}
844
845int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
846{
847    return security_ops->ipc_permission(ipcp, flag);
848}
849
850void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
851{
852    security_ops->ipc_getsecid(ipcp, secid);
853}
854
855int security_msg_msg_alloc(struct msg_msg *msg)
856{
857    return security_ops->msg_msg_alloc_security(msg);
858}
859
860void security_msg_msg_free(struct msg_msg *msg)
861{
862    security_ops->msg_msg_free_security(msg);
863}
864
865int security_msg_queue_alloc(struct msg_queue *msq)
866{
867    return security_ops->msg_queue_alloc_security(msq);
868}
869
870void security_msg_queue_free(struct msg_queue *msq)
871{
872    security_ops->msg_queue_free_security(msq);
873}
874
875int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
876{
877    return security_ops->msg_queue_associate(msq, msqflg);
878}
879
880int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
881{
882    return security_ops->msg_queue_msgctl(msq, cmd);
883}
884
885int security_msg_queue_msgsnd(struct msg_queue *msq,
886                   struct msg_msg *msg, int msqflg)
887{
888    return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
889}
890
891int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
892                   struct task_struct *target, long type, int mode)
893{
894    return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
895}
896
897int security_shm_alloc(struct shmid_kernel *shp)
898{
899    return security_ops->shm_alloc_security(shp);
900}
901
902void security_shm_free(struct shmid_kernel *shp)
903{
904    security_ops->shm_free_security(shp);
905}
906
907int security_shm_associate(struct shmid_kernel *shp, int shmflg)
908{
909    return security_ops->shm_associate(shp, shmflg);
910}
911
912int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
913{
914    return security_ops->shm_shmctl(shp, cmd);
915}
916
917int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
918{
919    return security_ops->shm_shmat(shp, shmaddr, shmflg);
920}
921
922int security_sem_alloc(struct sem_array *sma)
923{
924    return security_ops->sem_alloc_security(sma);
925}
926
927void security_sem_free(struct sem_array *sma)
928{
929    security_ops->sem_free_security(sma);
930}
931
932int security_sem_associate(struct sem_array *sma, int semflg)
933{
934    return security_ops->sem_associate(sma, semflg);
935}
936
937int security_sem_semctl(struct sem_array *sma, int cmd)
938{
939    return security_ops->sem_semctl(sma, cmd);
940}
941
942int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
943            unsigned nsops, int alter)
944{
945    return security_ops->sem_semop(sma, sops, nsops, alter);
946}
947
948void security_d_instantiate(struct dentry *dentry, struct inode *inode)
949{
950    if (unlikely(inode && IS_PRIVATE(inode)))
951        return;
952    security_ops->d_instantiate(dentry, inode);
953}
954EXPORT_SYMBOL(security_d_instantiate);
955
956int security_getprocattr(struct task_struct *p, char *name, char **value)
957{
958    return security_ops->getprocattr(p, name, value);
959}
960
961int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
962{
963    return security_ops->setprocattr(p, name, value, size);
964}
965
966int security_netlink_send(struct sock *sk, struct sk_buff *skb)
967{
968    return security_ops->netlink_send(sk, skb);
969}
970
971int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
972{
973    return security_ops->secid_to_secctx(secid, secdata, seclen);
974}
975EXPORT_SYMBOL(security_secid_to_secctx);
976
977int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
978{
979    return security_ops->secctx_to_secid(secdata, seclen, secid);
980}
981EXPORT_SYMBOL(security_secctx_to_secid);
982
983void security_release_secctx(char *secdata, u32 seclen)
984{
985    security_ops->release_secctx(secdata, seclen);
986}
987EXPORT_SYMBOL(security_release_secctx);
988
989int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
990{
991    return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
992}
993EXPORT_SYMBOL(security_inode_notifysecctx);
994
995int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
996{
997    return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
998}
999EXPORT_SYMBOL(security_inode_setsecctx);
1000
1001int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1002{
1003    return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1004}
1005EXPORT_SYMBOL(security_inode_getsecctx);
1006
1007#ifdef CONFIG_SECURITY_NETWORK
1008
1009int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1010{
1011    return security_ops->unix_stream_connect(sock, other, newsk);
1012}
1013EXPORT_SYMBOL(security_unix_stream_connect);
1014
1015int security_unix_may_send(struct socket *sock, struct socket *other)
1016{
1017    return security_ops->unix_may_send(sock, other);
1018}
1019EXPORT_SYMBOL(security_unix_may_send);
1020
1021int security_socket_create(int family, int type, int protocol, int kern)
1022{
1023    return security_ops->socket_create(family, type, protocol, kern);
1024}
1025
1026int security_socket_post_create(struct socket *sock, int family,
1027                int type, int protocol, int kern)
1028{
1029    return security_ops->socket_post_create(sock, family, type,
1030                        protocol, kern);
1031}
1032
1033int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1034{
1035    return security_ops->socket_bind(sock, address, addrlen);
1036}
1037
1038int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1039{
1040    return security_ops->socket_connect(sock, address, addrlen);
1041}
1042
1043int security_socket_listen(struct socket *sock, int backlog)
1044{
1045    return security_ops->socket_listen(sock, backlog);
1046}
1047
1048int security_socket_accept(struct socket *sock, struct socket *newsock)
1049{
1050    return security_ops->socket_accept(sock, newsock);
1051}
1052
1053int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1054{
1055    return security_ops->socket_sendmsg(sock, msg, size);
1056}
1057
1058int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1059                int size, int flags)
1060{
1061    return security_ops->socket_recvmsg(sock, msg, size, flags);
1062}
1063
1064int security_socket_getsockname(struct socket *sock)
1065{
1066    return security_ops->socket_getsockname(sock);
1067}
1068
1069int security_socket_getpeername(struct socket *sock)
1070{
1071    return security_ops->socket_getpeername(sock);
1072}
1073
1074int security_socket_getsockopt(struct socket *sock, int level, int optname)
1075{
1076    return security_ops->socket_getsockopt(sock, level, optname);
1077}
1078
1079int security_socket_setsockopt(struct socket *sock, int level, int optname)
1080{
1081    return security_ops->socket_setsockopt(sock, level, optname);
1082}
1083
1084int security_socket_shutdown(struct socket *sock, int how)
1085{
1086    return security_ops->socket_shutdown(sock, how);
1087}
1088
1089int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1090{
1091    return security_ops->socket_sock_rcv_skb(sk, skb);
1092}
1093EXPORT_SYMBOL(security_sock_rcv_skb);
1094
1095int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1096                      int __user *optlen, unsigned len)
1097{
1098    return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1099}
1100
1101int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1102{
1103    return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1104}
1105EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1106
1107int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1108{
1109    return security_ops->sk_alloc_security(sk, family, priority);
1110}
1111
1112void security_sk_free(struct sock *sk)
1113{
1114    security_ops->sk_free_security(sk);
1115}
1116
1117void security_sk_clone(const struct sock *sk, struct sock *newsk)
1118{
1119    security_ops->sk_clone_security(sk, newsk);
1120}
1121EXPORT_SYMBOL(security_sk_clone);
1122
1123void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1124{
1125    security_ops->sk_getsecid(sk, &fl->flowi_secid);
1126}
1127EXPORT_SYMBOL(security_sk_classify_flow);
1128
1129void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1130{
1131    security_ops->req_classify_flow(req, fl);
1132}
1133EXPORT_SYMBOL(security_req_classify_flow);
1134
1135void security_sock_graft(struct sock *sk, struct socket *parent)
1136{
1137    security_ops->sock_graft(sk, parent);
1138}
1139EXPORT_SYMBOL(security_sock_graft);
1140
1141int security_inet_conn_request(struct sock *sk,
1142            struct sk_buff *skb, struct request_sock *req)
1143{
1144    return security_ops->inet_conn_request(sk, skb, req);
1145}
1146EXPORT_SYMBOL(security_inet_conn_request);
1147
1148void security_inet_csk_clone(struct sock *newsk,
1149            const struct request_sock *req)
1150{
1151    security_ops->inet_csk_clone(newsk, req);
1152}
1153
1154void security_inet_conn_established(struct sock *sk,
1155            struct sk_buff *skb)
1156{
1157    security_ops->inet_conn_established(sk, skb);
1158}
1159
1160int security_secmark_relabel_packet(u32 secid)
1161{
1162    return security_ops->secmark_relabel_packet(secid);
1163}
1164EXPORT_SYMBOL(security_secmark_relabel_packet);
1165
1166void security_secmark_refcount_inc(void)
1167{
1168    security_ops->secmark_refcount_inc();
1169}
1170EXPORT_SYMBOL(security_secmark_refcount_inc);
1171
1172void security_secmark_refcount_dec(void)
1173{
1174    security_ops->secmark_refcount_dec();
1175}
1176EXPORT_SYMBOL(security_secmark_refcount_dec);
1177
1178int security_tun_dev_create(void)
1179{
1180    return security_ops->tun_dev_create();
1181}
1182EXPORT_SYMBOL(security_tun_dev_create);
1183
1184void security_tun_dev_post_create(struct sock *sk)
1185{
1186    return security_ops->tun_dev_post_create(sk);
1187}
1188EXPORT_SYMBOL(security_tun_dev_post_create);
1189
1190int security_tun_dev_attach(struct sock *sk)
1191{
1192    return security_ops->tun_dev_attach(sk);
1193}
1194EXPORT_SYMBOL(security_tun_dev_attach);
1195
1196#endif /* CONFIG_SECURITY_NETWORK */
1197
1198#ifdef CONFIG_SECURITY_NETWORK_XFRM
1199
1200int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1201{
1202    return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1203}
1204EXPORT_SYMBOL(security_xfrm_policy_alloc);
1205
1206int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1207                  struct xfrm_sec_ctx **new_ctxp)
1208{
1209    return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1210}
1211
1212void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1213{
1214    security_ops->xfrm_policy_free_security(ctx);
1215}
1216EXPORT_SYMBOL(security_xfrm_policy_free);
1217
1218int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1219{
1220    return security_ops->xfrm_policy_delete_security(ctx);
1221}
1222
1223int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1224{
1225    return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1226}
1227EXPORT_SYMBOL(security_xfrm_state_alloc);
1228
1229int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1230                      struct xfrm_sec_ctx *polsec, u32 secid)
1231{
1232    if (!polsec)
1233        return 0;
1234    /*
1235     * We want the context to be taken from secid which is usually
1236     * from the sock.
1237     */
1238    return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1239}
1240
1241int security_xfrm_state_delete(struct xfrm_state *x)
1242{
1243    return security_ops->xfrm_state_delete_security(x);
1244}
1245EXPORT_SYMBOL(security_xfrm_state_delete);
1246
1247void security_xfrm_state_free(struct xfrm_state *x)
1248{
1249    security_ops->xfrm_state_free_security(x);
1250}
1251
1252int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1253{
1254    return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1255}
1256
1257int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1258                       struct xfrm_policy *xp,
1259                       const struct flowi *fl)
1260{
1261    return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1262}
1263
1264int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1265{
1266    return security_ops->xfrm_decode_session(skb, secid, 1);
1267}
1268
1269void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1270{
1271    int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1272
1273    BUG_ON(rc);
1274}
1275EXPORT_SYMBOL(security_skb_classify_flow);
1276
1277#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1278
1279#ifdef CONFIG_KEYS
1280
1281int security_key_alloc(struct key *key, const struct cred *cred,
1282               unsigned long flags)
1283{
1284    return security_ops->key_alloc(key, cred, flags);
1285}
1286
1287void security_key_free(struct key *key)
1288{
1289    security_ops->key_free(key);
1290}
1291
1292int security_key_permission(key_ref_t key_ref,
1293                const struct cred *cred, key_perm_t perm)
1294{
1295    return security_ops->key_permission(key_ref, cred, perm);
1296}
1297
1298int security_key_getsecurity(struct key *key, char **_buffer)
1299{
1300    return security_ops->key_getsecurity(key, _buffer);
1301}
1302
1303#endif /* CONFIG_KEYS */
1304
1305#ifdef CONFIG_AUDIT
1306
1307int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1308{
1309    return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1310}
1311
1312int security_audit_rule_known(struct audit_krule *krule)
1313{
1314    return security_ops->audit_rule_known(krule);
1315}
1316
1317void security_audit_rule_free(void *lsmrule)
1318{
1319    security_ops->audit_rule_free(lsmrule);
1320}
1321
1322int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1323                  struct audit_context *actx)
1324{
1325    return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1326}
1327
1328#endif /* CONFIG_AUDIT */
1329

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