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Implement vsock socket layer

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This commit is contained in:
Anmin Liu
2024-04-07 15:08:18 +00:00
committed by Tate, Hongliang Tian
parent 83a7937334
commit ad140cec3c
34 changed files with 1421 additions and 688 deletions
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50
kernel/comps/virtio/src/device/socket/header.rs
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@ -1,6 +1,32 @@
// SPDX-License-Identifier: MPL-2.0
// Modified from protocol.rs in virtio-drivers project
//
// MIT License
//
// Copyright (c) 2022-2023 Ant Group
// Copyright (c) 2019-2020 rCore Developers
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
use bitflags::bitflags;
use int_to_c_enum::TryFromInt;
use pod::Pod;
use super::error::{self, SocketError};
@ -64,7 +90,7 @@ impl VirtioVsockHdr {
}
pub fn op(&self) -> error::Result<VirtioVsockOp> {
self.op.try_into()
VirtioVsockOp::try_from(self.op).map_err(|err| err.into())
}
pub fn source(&self) -> VsockAddr {
@ -90,7 +116,7 @@ impl VirtioVsockHdr {
}
}
#[derive(Default, Debug, Clone, Copy, PartialEq, Eq)]
#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, TryFromInt)]
#[repr(u16)]
#[allow(non_camel_case_types)]
pub enum VirtioVsockOp {
@ -112,26 +138,6 @@ pub enum VirtioVsockOp {
CreditRequest = 7,
}
/// TODO: This could be optimized by upgrading [int_to_c_enum::TryFromIntError] to carrying the invalid int number
impl TryFrom<u16> for VirtioVsockOp {
type Error = SocketError;
fn try_from(v: u16) -> Result<Self, Self::Error> {
let op = match v {
0 => Self::Invalid,
1 => Self::Request,
2 => Self::Response,
3 => Self::Rst,
4 => Self::Shutdown,
5 => Self::Rw,
6 => Self::CreditUpdate,
7 => Self::CreditRequest,
_ => return Err(SocketError::UnknownOperation(v)),
};
Ok(op)
}
}
bitflags! {
#[repr(C)]
#[derive(Default, Pod)]