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fix ipv6 UDP bytes mismatch, add bunch of aliases

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zedddie 2026-03-16 23:34:18 +01:00 • committed by tuturuu
parent 7b1bfbbed9
commit 08c4b5220f
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GPG key ID: B352C3C2894405A7
1 changed files with 14 additions and 10 deletions
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24
src/sniffing/headers.rs
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@ -40,16 +40,20 @@ impl PacketInfo {
} }
} }
} }
pub fn sniff_raw_packets(packet: &[u8]) -> Result<PacketInfo, Box<dyn std::error::Error + Send + Sync + 'static>> {
type GenericError = Box<dyn std::error::Error + Send + Sync + 'static>;
type SniffedPacket = Result<PacketInfo, Box<dyn std::error::Error + Send + Sync + 'static>>;
pub fn sniff_raw_packets(packet: &[u8]) -> SniffedPacket {
let ver = packet[0] >> 4; let ver = packet[0] >> 4;
dbg!(ver); dbg!(ver);
match ver { match ver {
4 => { 4 => {
let v4 = PacketInfo::V4{ let v4 = PacketInfo::V4{
src_ip: <[u8; 4]>::try_from(&packet[12..16])?, src_ip: <Ipv4>::try_from(&packet[12..16])?,
src_port: u16::from_be_bytes([packet[20], packet[21]]), src_port: Port::from_be_bytes([packet[20], packet[21]]),
dst_ip: <[u8; 4]>::try_from(&packet[16..20])?, dst_ip: <Ipv4>::try_from(&packet[16..20])?,
dst_port: u16::from_be_bytes([packet[22], packet[23]]), dst_port: Port::from_be_bytes([packet[22], packet[23]]),
protocol: match packet[9] { protocol: match packet[9] {
6 => Protocol::TCP, 6 => Protocol::TCP,
17 => Protocol::UDP, 17 => Protocol::UDP,
@ -66,13 +70,13 @@ pub fn sniff_raw_packets(packet: &[u8]) -> Result<PacketInfo, Box<dyn std::error
6 => { 6 => {
println!("im in 6!"); println!("im in 6!");
let v6 = PacketInfo::V6{ let v6 = PacketInfo::V6{
src_ip: <[u8; 16]>::try_from(&packet[8..24])?, src_ip: <Ipv6>::try_from(&packet[8..24])?,
src_port: u16::from_be_bytes([packet[40], packet[41]]), src_port: Port::from_be_bytes([packet[40], packet[41]]),
dst_ip: <[u8; 16]>::try_from(&packet[24..40])?, dst_ip: <Ipv6>::try_from(&packet[24..40])?,
dst_port: u16::from_be_bytes([packet[42], packet[43]]), dst_port: Port::from_be_bytes([packet[42], packet[43]]),
protocol: match packet[6] { protocol: match packet[6] {
6 => Protocol::TCP, 6 => Protocol::TCP,
4 => Protocol::UDP, 17 => Protocol::UDP,
p => Protocol::Unsupported(p) p => Protocol::Unsupported(p)
} }
}; };