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Merged
AKOrojo merged 1 commit into from
Feb 9, 2026
Merged

feat(tls): complete implementation of full TLS suite #16

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601 changes: 598 additions & 3 deletions Cargo.lock
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20 changes: 19 additions & 1 deletion crates/stackforge-core/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,26 @@ default-net = "0.22.0"
rand = { version = "0.9.2", optional = true }
pcap-file = "2"

# TLS crypto dependencies
hmac = { version = "0.12", optional = true }
sha2 = { version = "0.10", optional = true }
sha1 = { version = "0.10", optional = true }
md-5 = { version = "0.10", optional = true }
aes = { version = "0.8", optional = true }
cbc = { version = "0.1", optional = true }
aes-gcm = { version = "0.10", optional = true }
chacha20poly1305 = { version = "0.10", optional = true }
hkdf = { version = "0.12", optional = true }
p256 = { version = "0.13", features = ["ecdh"], optional = true }
x25519-dalek = { version = "2", features = ["getrandom", "static_secrets"], optional = true }
digest = { version = "0.10", optional = true }
rc4 = { version = "0.1", optional = true }
des = { version = "0.8", optional = true }

[features]
default = ["rand"]
default = ["rand", "tls"]
tls = ["hmac", "sha2", "sha1", "md-5", "aes", "cbc", "aes-gcm", "chacha20poly1305", "hkdf", "p256", "x25519-dalek", "digest"]
tls-weak-crypto = ["tls", "rc4", "des"]

[lints]
workspace = true
2 changes: 2 additions & 0 deletions crates/stackforge-core/src/layer/bindings.rs
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Expand Up @@ -126,6 +126,8 @@ pub static LAYER_BINDINGS: &[LayerBinding] = &[
"proto",
ip_protocol::ICMP as u16,
),
// TCP -> * (port-based, dport field)
LayerBinding::new(LayerKind::Tcp, LayerKind::Tls, "dport", 443),
// IPv6 -> *
LayerBinding::new(
LayerKind::Ipv6,
Expand Down
51 changes: 51 additions & 0 deletions crates/stackforge-core/src/layer/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ pub mod raw;
pub mod ssh;
pub mod stack;
pub mod tcp;
pub mod tls;
pub mod udp;

use std::ops::Range;
Expand All @@ -34,6 +35,10 @@ pub use tcp::{
TcpFlags, TcpLayer, TcpOption, TcpOptionKind, TcpOptions, TcpOptionsBuilder, TcpSackBlock,
TcpTimestamp, service_name, service_port, tcp_checksum, tcp_checksum_ipv4, verify_tcp_checksum,
};
pub use tls::{
TLS_FIELDS, TLS_PORT, TLS_RECORD_HEADER_LEN, TlsAlertBuilder, TlsCcsBuilder, TlsContentType,
TlsLayer, TlsRecordBuilder, TlsVersion,
};
pub use udp::{
UDP_HEADER_LEN, UdpBuilder, UdpLayer, udp_checksum_ipv4, udp_checksum_ipv6,
verify_udp_checksum_ipv4, verify_udp_checksum_ipv6,
Expand All @@ -59,6 +64,7 @@ pub enum LayerKind {
LLC = 13,
SNAP = 14,
Ssh = 15,
Tls = 16,
Raw = 255,
}

Expand All @@ -82,6 +88,7 @@ impl LayerKind {
Self::LLC => "LLC",
Self::SNAP => "SNAP",
Self::Ssh => "SSH",
Self::Tls => "TLS",
Self::Raw => "Raw",
}
}
Expand All @@ -103,6 +110,7 @@ impl LayerKind {
Self::LLC => 3,
Self::SNAP => 5,
Self::Ssh => ssh::SSH_BINARY_HEADER_LEN,
Self::Tls => tls::TLS_RECORD_HEADER_LEN,
Self::Raw => 0,
}
}
Expand Down Expand Up @@ -235,6 +243,7 @@ pub enum LayerEnum {
Udp(UdpLayer),
Dns(DnsLayer),
Ssh(SshLayer),
Tls(TlsLayer),
Raw(RawLayer),
}

Expand All @@ -253,6 +262,7 @@ impl LayerEnum {
Self::Udp(_) => LayerKind::Udp,
Self::Dns(_) => LayerKind::Dns,
Self::Ssh(_) => LayerKind::Ssh,
Self::Tls(_) => LayerKind::Tls,
Self::Raw(_) => LayerKind::Raw,
}
}
Expand All @@ -271,6 +281,7 @@ impl LayerEnum {
Self::Udp(l) => &l.index,
Self::Dns(l) => &l.index,
Self::Ssh(l) => &l.index,
Self::Tls(l) => &l.index,
Self::Raw(l) => &l.index,
}
}
Expand All @@ -288,6 +299,7 @@ impl LayerEnum {
Self::Udp(l) => l.summary(buf),
Self::Dns(l) => l.summary(buf),
Self::Ssh(l) => l.summary(buf),
Self::Tls(l) => l.summary(buf),
Self::Raw(l) => l.summary(buf),
}
}
Expand Down Expand Up @@ -317,6 +329,7 @@ impl LayerEnum {
Self::Udp(l) => l.header_len(buf),
Self::Dns(l) => l.header_len(buf),
Self::Ssh(l) => l.header_len(buf),
Self::Tls(l) => l.header_len(buf),
Self::Raw(l) => l.header_len(buf),
}
}
Expand All @@ -336,6 +349,7 @@ impl LayerEnum {
Self::Udp(l) => udp_show_fields(l, buf),
Self::Dns(l) => dns_show_fields(l, buf),
Self::Ssh(l) => ssh_show_fields(l, buf),
Self::Tls(l) => tls_show_fields(l, buf),
Self::Raw(l) => raw::raw_show_fields(l, buf),
}
}
Expand All @@ -353,6 +367,7 @@ impl LayerEnum {
Self::Udp(l) => l.get_field(buf, name),
Self::Raw(l) => l.get_field(buf, name),
Self::Ssh(l) => l.get_field(buf, name),
Self::Tls(l) => l.get_field(buf, name),
// Placeholder layers don't have dynamic field access yet
Self::Ipv6(_) | Self::Icmpv6(_) | Self::Dns(_) => None,
}
Expand All @@ -376,6 +391,7 @@ impl LayerEnum {
Self::Udp(l) => l.set_field(buf, name, value),
Self::Raw(l) => l.set_field(buf, name, value),
Self::Ssh(l) => l.set_field(buf, name, value),
Self::Tls(l) => l.set_field(buf, name, value),
// Placeholder layers don't have dynamic field access yet
Self::Ipv6(_) | Self::Icmpv6(_) | Self::Dns(_) => None,
}
Expand All @@ -393,6 +409,7 @@ impl LayerEnum {
Self::Udp(l) => l.field_names(),
Self::Raw(_) => RawLayer::field_names(),
Self::Ssh(l) => l.field_names(),
Self::Tls(l) => l.field_names(),
// Placeholder layers
Self::Ipv6(_) | Self::Icmpv6(_) | Self::Dns(_) => &[],
}
Expand Down Expand Up @@ -870,6 +887,40 @@ fn ssh_show_fields(l: &SshLayer, buf: &[u8]) -> Vec<(&'static str, String)> {
fields
}

fn tls_show_fields(l: &TlsLayer, buf: &[u8]) -> Vec<(&'static str, String)> {
let mut fields = Vec::new();
fields.push((
"type",
l.content_type(buf)
.map(|ct| format!("{} ({})", ct.as_u8(), ct.name()))
.unwrap_or_else(|_| "?".into()),
));
fields.push((
"version",
l.version(buf)
.map(|v| {
let ver = TlsVersion(v);
format!("{:#06x} ({})", v, ver.name())
})
.unwrap_or_else(|_| "?".into()),
));
fields.push((
"len",
l.length(buf)
.map(|v| v.to_string())
.unwrap_or_else(|_| "?".into()),
));
let frag = l.fragment(buf);
if !frag.is_empty() {
if frag.len() <= 16 {
fields.push(("fragment", format!("[{} bytes] {:02x?}", frag.len(), frag)));
} else {
fields.push(("fragment", format!("[{} bytes]", frag.len())));
}
}
fields
}

// Placeholder layer structs (to be fully implemented in later weeks)
#[derive(Debug, Clone)]
pub struct Ipv6Layer {
Expand Down
7 changes: 7 additions & 0 deletions crates/stackforge-core/src/layer/stack.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,7 @@ use super::icmp::builder::IcmpBuilder;
use super::ipv4::builder::Ipv4Builder;
use super::ssh::builder::SshBuilder;
use super::tcp::builder::TcpBuilder;
use super::tls::builder::TlsRecordBuilder;
use super::udp::builder::UdpBuilder;
use super::{ArpBuilder, LayerKind};
use crate::Packet;
Expand All @@ -68,6 +69,8 @@ pub enum LayerStackEntry {
Icmp(IcmpBuilder),
/// SSH layer
Ssh(SshBuilder),
/// TLS record layer
Tls(TlsRecordBuilder),
/// Raw bytes payload
Raw(Vec<u8>),
}
Expand All @@ -83,6 +86,7 @@ impl LayerStackEntry {
Self::Udp(_) => LayerKind::Udp,
Self::Icmp(_) => LayerKind::Icmp,
Self::Ssh(_) => LayerKind::Ssh,
Self::Tls(_) => LayerKind::Tls,
Self::Raw(_) => LayerKind::Raw,
}
}
Expand All @@ -97,6 +101,7 @@ impl LayerStackEntry {
Self::Udp(b) => b.build(),
Self::Icmp(b) => b.build(),
Self::Ssh(b) => b.build(),
Self::Tls(b) => b.build(),
Self::Raw(data) => data.clone(),
}
}
Expand All @@ -111,6 +116,7 @@ impl LayerStackEntry {
Self::Udp(b) => b.header_size(),
Self::Icmp(b) => b.header_size(),
Self::Ssh(b) => b.header_size(),
Self::Tls(b) => b.record_size(),
Self::Raw(data) => data.len(),
}
}
Expand All @@ -125,6 +131,7 @@ impl LayerStackEntry {
Self::Udp(_) => UDP_HEADER_LEN,
Self::Icmp(_) => ICMP_MIN_HEADER_LEN,
Self::Ssh(b) => b.header_size(),
Self::Tls(_) => 5, // TLS record header is 5 bytes
Self::Raw(data) => data.len(),
}
}
Expand Down
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