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Diffstat (limited to 'security/selinux/hooks.c')
-rw-r--r--security/selinux/hooks.c22
1 files changed, 5 insertions, 17 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 91200feb3f9c..63f131fc42e4 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -555,15 +555,13 @@ static int selinux_set_mnt_opts(struct super_block *sb,
555 struct task_security_struct *tsec = current->security; 555 struct task_security_struct *tsec = current->security;
556 struct superblock_security_struct *sbsec = sb->s_security; 556 struct superblock_security_struct *sbsec = sb->s_security;
557 const char *name = sb->s_type->name; 557 const char *name = sb->s_type->name;
558 struct dentry *root = sb->s_root; 558 struct inode *inode = sbsec->sb->s_root->d_inode;
559 struct inode *root_inode = root->d_inode; 559 struct inode_security_struct *root_isec = inode->i_security;
560 struct inode_security_struct *root_isec = root_inode->i_security;
561 u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0; 560 u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0;
562 u32 defcontext_sid = 0; 561 u32 defcontext_sid = 0;
563 char **mount_options = opts->mnt_opts; 562 char **mount_options = opts->mnt_opts;
564 int *flags = opts->mnt_opts_flags; 563 int *flags = opts->mnt_opts_flags;
565 int num_opts = opts->num_mnt_opts; 564 int num_opts = opts->num_mnt_opts;
566 bool can_xattr = false;
567 565
568 mutex_lock(&sbsec->lock); 566 mutex_lock(&sbsec->lock);
569 567
@@ -667,24 +665,14 @@ static int selinux_set_mnt_opts(struct super_block *sb,
667 goto out; 665 goto out;
668 } 666 }
669 667
670 if (strcmp(name, "proc") == 0) 668 if (strcmp(sb->s_type->name, "proc") == 0)
671 sbsec->proc = 1; 669 sbsec->proc = 1;
672 670
673 /*
674 * test if the fs supports xattrs, fs_use might make use of this if the
675 * fs has no definition in policy.
676 */
677 if (root_inode->i_op->getxattr) {
678 rc = root_inode->i_op->getxattr(root, XATTR_NAME_SELINUX, NULL, 0);
679 if (rc >= 0 || rc == -ENODATA)
680 can_xattr = true;
681 }
682
683 /* Determine the labeling behavior to use for this filesystem type. */ 671 /* Determine the labeling behavior to use for this filesystem type. */
684 rc = security_fs_use(name, &sbsec->behavior, &sbsec->sid, can_xattr); 672 rc = security_fs_use(sb->s_type->name, &sbsec->behavior, &sbsec->sid);
685 if (rc) { 673 if (rc) {
686 printk(KERN_WARNING "%s: security_fs_use(%s) returned %d\n", 674 printk(KERN_WARNING "%s: security_fs_use(%s) returned %d\n",
687 __func__, name, rc); 675 __func__, sb->s_type->name, rc);
688 goto out; 676 goto out;
689 } 677 }
690 678