webrtc_util/
lib.rs

1#![warn(rust_2018_idioms)]
2#![allow(dead_code)]
3
4use std::io;
5
6use async_trait::async_trait;
7use thiserror::Error;
8
9#[cfg(feature = "vnet")]
10#[macro_use]
11extern crate lazy_static;
12
13#[cfg(target_family = "windows")]
14#[macro_use]
15extern crate bitflags;
16
17pub mod fixed_big_int;
18pub mod replay_detector;
19
20/// KeyingMaterialExporter to extract keying material.
21///
22/// This trait sits here to avoid getting a direct dependency between
23/// the dtls and srtp crates.
24#[async_trait]
25pub trait KeyingMaterialExporter {
26    async fn export_keying_material(
27        &self,
28        label: &str,
29        context: &[u8],
30        length: usize,
31    ) -> std::result::Result<Vec<u8>, KeyingMaterialExporterError>;
32}
33
34/// Possible errors while exporting keying material.
35///
36/// These errors might have been more logically kept in the dtls
37/// crate, but that would have required a direct dependency between
38/// srtp and dtls.
39#[derive(Debug, Error, PartialEq)]
40#[non_exhaustive]
41pub enum KeyingMaterialExporterError {
42    #[error("tls handshake is in progress")]
43    HandshakeInProgress,
44    #[error("context is not supported for export_keying_material")]
45    ContextUnsupported,
46    #[error("export_keying_material can not be used with a reserved label")]
47    ReservedExportKeyingMaterial,
48    #[error("no cipher suite for export_keying_material")]
49    CipherSuiteUnset,
50    #[error("export_keying_material io: {0}")]
51    Io(#[source] error::IoError),
52    #[error("export_keying_material hash: {0}")]
53    Hash(String),
54}
55
56impl From<io::Error> for KeyingMaterialExporterError {
57    fn from(e: io::Error) -> Self {
58        KeyingMaterialExporterError::Io(error::IoError(e))
59    }
60}
61
62#[cfg(feature = "buffer")]
63pub mod buffer;
64
65#[cfg(feature = "conn")]
66pub mod conn;
67
68#[cfg(feature = "ifaces")]
69pub mod ifaces;
70
71#[cfg(feature = "vnet")]
72pub mod vnet;
73
74#[cfg(feature = "marshal")]
75pub mod marshal;
76
77#[cfg(feature = "buffer")]
78pub use crate::buffer::Buffer;
79#[cfg(feature = "conn")]
80pub use crate::conn::Conn;
81#[cfg(feature = "marshal")]
82pub use crate::marshal::{exact_size_buf::ExactSizeBuf, Marshal, MarshalSize, Unmarshal};
83
84mod error;
85pub use error::{Error, Result};
86
87#[cfg(feature = "sync")]
88pub mod sync;