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* Add quic support * Update main.rs * fix indexing errors * probe indexing change * configs * fix usize error * further usize fixes * another index fix * return configs * minimal performance improvements * config changes * rename file * lazy load bytes * lazy string copy * other string conversion * small change again * renove config changes * rename quic stream * parseresult done * revert parse result * remove configs * this is gonna break a lot * config changes * fix reference errors * import fixes * pub header * public vec_u8 * import hell * rename * slight fixes * everything mutable * this wont work * better cloning * cloning * fix * fully clone * more cloning * copy trait * partial move * remove ref * fix * println debugging * fix * more prints * hashset * from clone * y not * cleanliness * print quic clone * done * remove prints * clear on end * remove dead code * remove imports * remove configs * reference based conn_ids * configs * rename quic to quicpacket * remove quic.toml * remove configs * revert * remove configs * clippy fix
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| //! Quic header types | ||
| use serde::Serialize; | ||
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|
||
| /// Quic Long Header | ||
| #[derive(Debug, Serialize, Clone)] | ||
| pub struct QuicLongHeader { | ||
| pub packet_type: u8, | ||
| pub type_specific: u8, | ||
| pub version: u32, | ||
| pub dcid_len: u8, // length of dcid in bytes | ||
| pub dcid: String, // hex string | ||
| pub scid_len: u8, // length of scid in bytes | ||
| pub scid: String, // hex string | ||
| } | ||
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| /// Quic Short Header | ||
| #[derive(Debug, Serialize, Clone)] | ||
| pub struct QuicShortHeader { | ||
| pub dcid: Option<String>, // optional. If not pre-existing cid then none. | ||
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|
||
| #[serde(skip)] | ||
| pub dcid_bytes: Vec<u8>, | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| //! QUIC protocol parser. | ||
| //! | ||
| //! ## Remarks | ||
| //! [QUIC-INVARIANTS] https://datatracker.ietf.org/doc/rfc8999/ | ||
| //! [QUIC-RFC9000] https://datatracker.ietf.org/doc/rfc9000/ (Quic V1) | ||
| //! Retina currently only parses Quic Long and Short Headers and does not attempt to parse TLS or HTTP/3 out of | ||
| //! Quic packets. The Quic protocol parser makes several assumptions about the way that quic | ||
| //! packets will behave: | ||
| //! - Assume that the Quic version is one as listed in the QuicVersion Enum in the quic/parser.rs file | ||
| //! - Assume that the dcid of a short header is a maximum of 20 bytes. | ||
| //! - Assume that the packet will not try to grease the fixed bit. | ||
| //! [QUIC-GREASE](https://www.rfc-editor.org/rfc/rfc9287.html) | ||
| //! | ||
| //! Additionally, there are a couple decisions made in the design of the quic parser: | ||
| //! - The parser will not parse a short header dcid if it is not a part of a pre-identified connection | ||
| //! - The payload bytes count is a lazy counter which does not try to exclude tokens for encryption, | ||
| //! which is a process that happens in wireshark. | ||
| /* | ||
| TODO: support parsing the tls out of the initial quic packet setup | ||
| TODO support dns over quic | ||
| TODO: support HTTP/3 | ||
| */ | ||
| pub(crate) mod parser; | ||
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| pub use self::header::{QuicLongHeader, QuicShortHeader}; | ||
| use serde::Serialize; | ||
| pub(crate) mod header; | ||
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| /// Parsed Quic Packet contents | ||
| #[derive(Debug, Serialize, Clone)] | ||
| pub struct QuicPacket { | ||
| /// Quic Short header | ||
| pub short_header: Option<QuicShortHeader>, | ||
|
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| /// Quic Long header | ||
| pub long_header: Option<QuicLongHeader>, | ||
|
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| /// The number of bytes contained in the estimated payload | ||
| pub payload_bytes_count: u16, | ||
| } | ||
|
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| impl QuicPacket { | ||
| /// Returns the header type of the Quic packet (ie. "long" or "short") | ||
| pub fn header_type(&self) -> &str { | ||
| match &self.long_header { | ||
| Some(_) => "long", | ||
| None => match &self.short_header { | ||
| Some(_) => "short", | ||
| None => "", | ||
| }, | ||
| } | ||
| } | ||
|
|
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| /// Returns the packet type of the Quic packet | ||
| pub fn packet_type(&self) -> u8 { | ||
| match &self.long_header { | ||
| Some(long_header) => long_header.packet_type, | ||
| None => 0, | ||
| } | ||
| } | ||
|
|
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| /// Returns the version of the Quic packet | ||
| pub fn version(&self) -> u32 { | ||
| match &self.long_header { | ||
| Some(long_header) => long_header.version, | ||
| None => 0, | ||
| } | ||
| } | ||
|
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| /// Returns the destination connection ID of the Quic packet or an empty string if it does not exist | ||
| pub fn dcid(&self) -> &str { | ||
| match &self.long_header { | ||
| Some(long_header) => { | ||
| if long_header.dcid_len > 0 { | ||
| &long_header.dcid | ||
| } else { | ||
| "" | ||
| } | ||
| } | ||
| None => { | ||
| if let Some(short_header) = &self.short_header { | ||
| short_header.dcid.as_deref().unwrap_or("") | ||
| } else { | ||
| "" | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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||
| /// Returns the source connection ID of the Quic packet or an empty string if it does not exist | ||
| pub fn scid(&self) -> &str { | ||
| match &self.long_header { | ||
| Some(long_header) => { | ||
| if long_header.scid_len > 0 { | ||
| &long_header.scid | ||
| } else { | ||
| "" | ||
| } | ||
| } | ||
| None => "", | ||
| } | ||
| } | ||
|
|
||
| /// Returns the number of bytes in the payload of the Quic packet | ||
| pub fn payload_bytes_count(&self) -> u16 { | ||
| self.payload_bytes_count | ||
| } | ||
| } |
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