cloud-hypervisor/vhost_user_fs/src/lib.rs

// Copyright © 2019 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause

#[macro_use]
extern crate log;

pub mod descriptor_utils;
pub mod file_traits;
pub mod filesystem;
pub mod fuse;
pub mod multikey;
pub mod passthrough;
vhost_user_fs: Add new crate This new crate will be dedicated to vhost_user_fs specific code that can be used as a library from the vhost-user-fs daemon. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 17:16:28 +00:00			`// Copyright © 2019 Intel Corporation`
			`//`
			`// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause`
vhost_user_fs: Add FUSE definitions To be able to deal with FUSE requests, this commit introduces FUSE definitions, copied over from the crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 17:26:24 +00:00
vhost_user_fs: Implement FileSystem trait for Passthrough Add a "passthrough" file system implementation that just forwards its requests to the appropriate system call. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 20:09:20 +00:00			`#[macro_use]`
			`extern crate log;`

vhost_user_fs: Add virtio descriptor helper traits Introduce helpers to split a virtio descriptor into its readable part on one side, and into its writable part on the other side. This is useful to separate the request from the reply. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Two important modifications have been applied to the original code: - GuestMemory is replaced by GuestMemoryMmap from the vm-memory crate, which comes with different ways of accessing the memory regions. - VolatileSlice has different methods, which means the code has been updated accordingly. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 21:55:06 +00:00			`pub mod descriptor_utils;`
vhost_user_fs: Add file traits to handle writing volatile memory The vm_memory implementation for VolatileSlice is able to read and write to a source or destination which implements a Read or Write trait. Unfortunately, this is not enough for this specific use case as we need to be able to write to a file at a specific offset, which is not provided by the Read or Write trait. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-11-01 16:56:06 +00:00			`pub mod file_traits;`
vhost_user_fs: Add FileSystem trait Add the `Filesystem` trait, which is the main interface between the transport and the actual file system implementation. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 19:21:21 +00:00			`pub mod filesystem;`
vhost_user_fs: Add FUSE definitions To be able to deal with FUSE requests, this commit introduces FUSE definitions, copied over from the crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 17:26:24 +00:00			`pub mod fuse;`
vhost_user_fs: Add multikey module The multikey module provides a BTreeMap implementation that can use one of 2 different kinds of keys to look up a value. This is needed by the virtio-fs server since it needs to be able to look up keys either by u64 or by a (ino_t, dev_t) pair. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 17:40:33 +00:00			`pub mod multikey;`
vhost_user_fs: Implement FileSystem trait for Passthrough Add a "passthrough" file system implementation that just forwards its requests to the appropriate system call. This code has been ported over from crosvm commit 961461350c0b6824e5f20655031bf6c6bf6b7c30. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com> 2019-10-31 20:09:20 +00:00			`pub mod passthrough;`