Split out stun types/proto to a separate crate

Now depends on stun-types/stun-proto for STUN.

.github/workflows/rust-fuzz.yml

@@ -26,12 +26,6 @@ jobs:
           command: 'install'
           args: 'cargo-fuzz'
 
-      - name: Run cargo-fuzz
-        uses: actions-rs/cargo@v1
-        with:
-          command: 'fuzz'
-          args: 'run stun_msg_from_bytes -- -max_total_time=20'
-
       - name: Run cargo-fuzz
         uses: actions-rs/cargo@v1
         with:

Cargo.toml

@@ -10,6 +10,7 @@ edition = "2021"
 rust-version = "1.68.2"
 
 [workspace.dependencies]
+stun-proto = "0.0.1"
 arbitrary = { version = "1", features = ["derive"] }
 byteorder = "1"
 get_if_addrs = "0.5"

fuzz/Cargo.toml

@@ -13,18 +13,12 @@ cargo-fuzz = true
 arbitrary.workspace = true
 libfuzzer-sys = "0.4"
 tracing.workspace = true
-tracing-subscriber.workspace = true
+tracing-subscriber = { workspace = true, features = ["env-filter"] }
 
 [dependencies.librice-proto]
 path = "../librice-proto"
 features = ["arbitrary"]
 
-[[bin]]
-name = "stun_msg_from_bytes"
-path = "fuzz_targets/stun_msg_from_bytes.rs"
-test = false
-doc = false
-
 [[bin]]
 name = "parse_candidate"
 path = "fuzz_targets/parse_candidate.rs"

librice-proto/Cargo.toml

@@ -18,17 +18,13 @@ capi = ["libc", "socket2", "tracing-subscriber/env-filter", "get_if_addrs"]
 [dependencies]
 arbitrary = { workspace = true, optional = true }
 byteorder.workspace = true
-crc = "3"
 get_if_addrs = { workspace = true, optional = true }
-hmac = "0.12"
-md-5 = "0.10"
 nom = "7"
 rand.workspace = true
-sha-1 = "0.10"
-sha2 = "0.10"
 tracing.workspace = true
 libc = { version = "0.2", optional = true }
 socket2 = { version = "0.5", optional = true }
+stun-proto.workspace = true
 tracing-subscriber = { workspace = true, optional = true }
 
 [dev-dependencies]

librice-proto/src/agent.rs

@@ -21,8 +21,8 @@ use crate::component::ComponentConnectionState;
 use crate::candidate::{ParseCandidateError, TransportType};
 use crate::conncheck::{CheckListSetPollRet, ConnCheckEvent, ConnCheckListSet, SelectedPair};
 use crate::stream::{Stream, StreamMut, StreamState};
-use crate::stun::agent::{StunError, Transmit};
-use crate::stun::attribute::StunParseError;
+use stun_proto::agent::{StunError, Transmit};
+use stun_proto::types::message::StunParseError;
 //use crate::turn::agent::TurnCredentials;
 
 /// Errors that can be returned as a result of agent operations.
@@ -49,10 +49,9 @@ pub enum AgentError {
     Aborted,
     TimedOut,
     StunParse,
+    StunWrite,
     /// Parsing the candidate failed.
     CandidateParse(ParseCandidateError),
-    /// An I/O error occurred.
-    IoError(std::io::Error),
     /// Data was received that does not match the protocol specifications.
     ProtocolViolation,
 }
@@ -65,12 +64,6 @@ impl Display for AgentError {
     }
 }
 
-impl From<std::io::Error> for AgentError {
-    fn from(e: std::io::Error) -> Self {
-        Self::IoError(e)
-    }
-}
-
 impl From<ParseCandidateError> for AgentError {
     fn from(e: ParseCandidateError) -> Self {
         Self::CandidateParse(e)
@@ -88,7 +81,7 @@ impl From<StunError> for AgentError {
             StunError::IntegrityCheckFailed => AgentError::IntegrityCheckFailed,
             StunError::ProtocolViolation => AgentError::ProtocolViolation,
             StunError::ParseError(_) => AgentError::StunParse,
-            StunError::IoError(e) => AgentError::IoError(e),
+            StunError::WriteError(_) => AgentError::StunWrite,
             StunError::Aborted => AgentError::Aborted,
             StunError::AlreadyInProgress => AgentError::AlreadyInProgress,
         }

librice-proto/src/candidate.rs

@@ -8,8 +8,8 @@
 
 //! ICE Candidates
 
-pub use crate::stun::TransportType;
 pub use parse::ParseCandidateError;
+pub use stun_proto::types::TransportType;
 
 use std::error::Error;
 use std::net::SocketAddr;
@@ -442,7 +442,7 @@ mod parse {
 
     use super::{Candidate, CandidateType, ParseCandidateTypeError};
     use super::{ParseTcpTypeError, TcpType};
-    use crate::stun::{ParseTransportTypeError, TransportType};
+    use stun_proto::types::{ParseTransportTypeError, TransportType};
 
     /// Errors produced when parsing a candidate
     #[derive(Debug)]

librice-proto/src/capi.rs

@@ -28,8 +28,8 @@ use crate::candidate::{Candidate, CandidateType};
 pub use crate::component::ComponentConnectionState;
 use crate::gathering::GatherPoll;
 use crate::stream::Credentials;
-use crate::stun::agent::{Data, DataOwned, DataSlice, StunAgent, StunError, Transmit};
-use crate::stun::TransportType;
+use stun_proto::agent::{Data, DataOwned, DataSlice, StunAgent, StunError, Transmit};
+use stun_proto::types::TransportType;
 
 static TRACING: Once = Once::new();