38 lines
902 B
Rust
38 lines
902 B
Rust
use byteorder::BigEndian;
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use zerocopy::byteorder::U16;
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use zerocopy::{AsBytes, ByteSlice, FromBytes, LayoutVerified};
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pub const SIZE_IP4_HEADER: usize = 16;
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pub const SIZE_IP6_HEADER: usize = 36;
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pub const VERSION_IP4: u8 = 4;
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pub const VERSION_IP6: u8 = 6;
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pub const OFFSET_IP4_SRC: usize = 12;
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pub const OFFSET_IP6_SRC: usize = 8;
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pub const OFFSET_IP4_DST: usize = 16;
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pub const OFFSET_IP6_DST: usize = 24;
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pub const TYPE_TRANSPORT: u8 = 4;
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#[repr(packed)]
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#[derive(Copy, Clone, FromBytes, AsBytes)]
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pub struct IPv4Header {
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_f_space1: [u8; 2],
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pub f_total_len: U16<BigEndian>,
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_f_space2: [u8; 8],
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pub f_source: [u8; 4],
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pub f_destination: [u8; 4],
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}
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#[repr(packed)]
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#[derive(Copy, Clone, FromBytes, AsBytes)]
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pub struct IPv6Header {
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_f_pre: [u8; 4],
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pub f_len: U16<BigEndian>,
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_f_space2: [u8; 2],
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pub f_source: [u8; 16],
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pub f_destination: [u8; 16],
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}
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