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authorJim Owens <jowens@hp.com>2009-02-04 17:29:13 +0300
committerChris Mason <chris.mason@oracle.com>2009-02-04 17:29:13 +0300
commit0279b4cd86685b5eea467c1b74ce94f0add2c0a3 (patch)
tree54caafd4c6b31e2bc9861217627297c00af89066 /fs/btrfs/inode.c
parentbef62ef339c15d7721da88958b03f7b544464722 (diff)
downloadlinux-0279b4cd86685b5eea467c1b74ce94f0add2c0a3.tar.xz
Btrfs: selinux support
Add call to LSM security initialization and save resulting security xattr for new inodes. Add xattr support to symlink inode ops. Set inode->i_op for existing special files. Signed-off-by: jim owens <jowens@hp.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2bb65e9b1448..4a79e1c5ebd0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -90,6 +90,16 @@ static noinline int cow_file_range(struct inode *inode,
u64 start, u64 end, int *page_started,
unsigned long *nr_written, int unlock);
+static int btrfs_init_inode_security(struct inode *inode, struct inode *dir)
+{
+ int err;
+
+ err = btrfs_init_acl(inode, dir);
+ if (!err)
+ err = btrfs_xattr_security_init(inode, dir);
+ return err;
+}
+
/*
* a very lame attempt at stopping writes when the FS is 85% full. There
* are countless ways this is incorrect, but it is better than nothing.
@@ -2037,6 +2047,7 @@ void btrfs_read_locked_inode(struct inode *inode)
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
break;
default:
+ inode->i_op = &btrfs_special_inode_operations;
init_special_inode(inode, inode->i_mode, rdev);
break;
}
@@ -3584,7 +3595,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_acl(inode, dir);
+ err = btrfs_init_inode_security(inode, dir);
if (err) {
drop_inode = 1;
goto out_unlock;
@@ -3647,7 +3658,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_acl(inode, dir);
+ err = btrfs_init_inode_security(inode, dir);
if (err) {
drop_inode = 1;
goto out_unlock;
@@ -3770,7 +3781,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
drop_on_err = 1;
- err = btrfs_init_acl(inode, dir);
+ err = btrfs_init_inode_security(inode, dir);
if (err)
goto out_fail;
@@ -4732,7 +4743,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_acl(inode, dir);
+ err = btrfs_init_inode_security(inode, dir);
if (err) {
drop_inode = 1;
goto out_unlock;
@@ -5043,4 +5054,8 @@ static struct inode_operations btrfs_symlink_inode_operations = {
.follow_link = page_follow_link_light,
.put_link = page_put_link,
.permission = btrfs_permission,
+ .setxattr = btrfs_setxattr,
+ .getxattr = btrfs_getxattr,
+ .listxattr = btrfs_listxattr,
+ .removexattr = btrfs_removexattr,
};