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-rw-r--r--fs/fuse/dir.c57
1 files changed, 54 insertions, 3 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b3089a083d3..e703654e7f4 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -375,7 +375,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
struct fuse_conn *fc = get_fuse_conn(dir);
struct fuse_req *req;
struct fuse_req *forget_req;
- struct fuse_open_in inarg;
+ struct fuse_create_in inarg;
struct fuse_open_out outopen;
struct fuse_entry_out outentry;
struct fuse_file *ff;
@@ -399,15 +399,20 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, int mode,
if (!ff)
goto out_put_request;
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
flags &= ~O_NOCTTY;
memset(&inarg, 0, sizeof(inarg));
memset(&outentry, 0, sizeof(outentry));
inarg.flags = flags;
inarg.mode = mode;
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_CREATE;
req->in.h.nodeid = get_node_id(dir);
req->in.numargs = 2;
- req->in.args[0].size = sizeof(inarg);
+ req->in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) :
+ sizeof(inarg);
req->in.args[0].value = &inarg;
req->in.args[1].size = entry->d_name.len + 1;
req->in.args[1].value = entry->d_name.name;
@@ -546,12 +551,17 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, int mode,
if (IS_ERR(req))
return PTR_ERR(req);
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
inarg.rdev = new_encode_dev(rdev);
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_MKNOD;
req->in.numargs = 2;
- req->in.args[0].size = sizeof(inarg);
+ req->in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE :
+ sizeof(inarg);
req->in.args[0].value = &inarg;
req->in.args[1].size = entry->d_name.len + 1;
req->in.args[1].value = entry->d_name.name;
@@ -578,8 +588,12 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, int mode)
if (IS_ERR(req))
return PTR_ERR(req);
+ if (!fc->dont_mask)
+ mode &= ~current_umask();
+
memset(&inarg, 0, sizeof(inarg));
inarg.mode = mode;
+ inarg.umask = current_umask();
req->in.h.opcode = FUSE_MKDIR;
req->in.numargs = 2;
req->in.args[0].size = sizeof(inarg);
@@ -845,6 +859,43 @@ int fuse_update_attributes(struct inode *inode, struct kstat *stat,
return err;
}
+int fuse_reverse_inval_entry(struct super_block *sb, u64 parent_nodeid,
+ struct qstr *name)
+{
+ int err = -ENOTDIR;
+ struct inode *parent;
+ struct dentry *dir;
+ struct dentry *entry;
+
+ parent = ilookup5(sb, parent_nodeid, fuse_inode_eq, &parent_nodeid);
+ if (!parent)
+ return -ENOENT;
+
+ mutex_lock(&parent->i_mutex);
+ if (!S_ISDIR(parent->i_mode))
+ goto unlock;
+
+ err = -ENOENT;
+ dir = d_find_alias(parent);
+ if (!dir)
+ goto unlock;
+
+ entry = d_lookup(dir, name);
+ dput(dir);
+ if (!entry)
+ goto unlock;
+
+ fuse_invalidate_attr(parent);
+ fuse_invalidate_entry(entry);
+ dput(entry);
+ err = 0;
+
+ unlock:
+ mutex_unlock(&parent->i_mutex);
+ iput(parent);
+ return err;
+}
+
/*
* Calling into a user-controlled filesystem gives the filesystem
* daemon ptrace-like capabilities over the requester process. This