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Merged
AKOrojo merged 2 commits into from
Jan 24, 2026
Merged

tcp #5

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7066ab9
tcp
AKOrojo Jan 24, 2026
e395efb
Merge branch 'main' into featrue/layer-
AKOrojo Jan 24, 2026
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35 changes: 9 additions & 26 deletions crates/stackforge-core/src/layer/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ pub mod ethernet;
pub mod field;
pub mod ipv4;
pub mod neighbor;
pub mod tcp;

use std::ops::Range;

Expand All @@ -19,6 +20,11 @@ pub use ethernet::{Dot3Builder, Dot3Layer, EthernetBuilder, EthernetLayer};
pub use field::{BytesField, Field, FieldDesc, FieldError, FieldType, FieldValue, MacAddress};
pub use ipv4::{Ipv4Builder, Ipv4Flags, Ipv4Layer, Ipv4Options, Ipv4Route};
pub use neighbor::{NeighborCache, NeighborResolver};
pub use tcp::{
TCP_FIELDS, TCP_MAX_HEADER_LEN, TCP_MIN_HEADER_LEN, TCP_SERVICES, TcpAoValue, TcpBuilder,
TcpFlags, TcpLayer, TcpOption, TcpOptionKind, TcpOptions, TcpOptionsBuilder, TcpSackBlock,
TcpTimestamp, service_name, service_port, tcp_checksum, tcp_checksum_ipv4, verify_tcp_checksum,
};

/// Identifies the type of network protocol layer.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
Expand Down Expand Up @@ -73,7 +79,7 @@ impl LayerKind {
Self::Ipv4 => ipv4::IPV4_MIN_HEADER_LEN,
Self::Ipv6 => 40,
Self::Icmp | Self::Icmpv6 => 8,
Self::Tcp => 20,
Self::Tcp => tcp::TCP_MIN_HEADER_LEN,
Self::Udp => 8,
Self::Dns => 12,
Self::Dot1Q => 4,
Expand Down Expand Up @@ -264,6 +270,7 @@ impl LayerEnum {
Self::Ethernet(l) => l.hashret(buf),
Self::Arp(l) => l.hashret(buf),
Self::Ipv4(l) => l.hashret(buf),
Self::Tcp(l) => l.hashret(buf),
_ => vec![],
}
}
Expand Down Expand Up @@ -334,31 +341,7 @@ impl Icmpv6Layer {
}
}

#[derive(Debug, Clone)]
pub struct TcpLayer {
pub index: LayerIndex,
}

impl TcpLayer {
pub fn summary(&self, buf: &[u8]) -> String {
let slice = self.index.slice(buf);
if slice.len() >= 4 {
let src_port = u16::from_be_bytes([slice[0], slice[1]]);
let dst_port = u16::from_be_bytes([slice[2], slice[3]]);
format!("TCP {} > {}", src_port, dst_port)
} else {
"TCP".to_string()
}
}
pub fn header_len(&self, buf: &[u8]) -> usize {
let slice = self.index.slice(buf);
if slice.len() >= 13 {
((slice[12] >> 4) as usize) * 4
} else {
20
}
}
}
// TcpLayer is now imported from the tcp module

#[derive(Debug, Clone)]
pub struct UdpLayer {
Expand Down
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