multiboot2/
network.rs

1//! Module for [`NetworkTag`].
2
3use crate::{TagHeader, TagType, TagTypeId};
4use core::mem;
5use multiboot2_common::{MaybeDynSized, Tag};
6use ptr_meta::Pointee;
7#[cfg(feature = "builder")]
8use {alloc::boxed::Box, multiboot2_common::new_boxed};
9
10/// The end tag ends the information struct.
11#[derive(Debug, Pointee)]
12#[repr(C, align(8))]
13pub struct NetworkTag {
14    typ: TagTypeId,
15    size: u32,
16    dhcpack: [u8],
17}
18
19impl NetworkTag {
20    /// Create a new network tag from the given DHCP package.
21    #[cfg(feature = "builder")]
22    #[must_use]
23    pub fn new(dhcp_pack: &[u8]) -> Box<Self> {
24        let header = TagHeader::new(Self::ID, 0);
25        new_boxed(header, &[dhcp_pack])
26    }
27}
28
29impl MaybeDynSized for NetworkTag {
30    type Header = TagHeader;
31
32    const BASE_SIZE: usize = mem::size_of::<TagHeader>();
33
34    fn dst_len(header: &TagHeader) -> usize {
35        header.size as usize - Self::BASE_SIZE
36    }
37}
38
39impl Tag for NetworkTag {
40    type IDType = TagType;
41
42    const ID: TagType = TagType::Network;
43}
multiboot2/network.rs

multiboot2/
network.rs
