Comments (1)
According to the RFC:
Note: After sending out INIT ACK with the State Cookie parameter,
"Z" MUST NOT allocate any resources or keep any states for the new
association. Otherwise, "Z" will be vulnerable to resource
attacks.
And later regarding state cookie generation:
From the TCB, identify and collect the minimal subset of
information needed to re-create the TCB, and generate a MAC using
this subset of information and a secret key
The current impl creates all resources from start, and doesn't do this "delayed init" via the state cookie. This is probably okay since the SCTP state is bound to the underlying lifetime of the DTLS, which in turn depends on ICE. "Resource attacks" might be unlikely if the lower levels guards for it.
But it begs the question, what do we want to do with this issue?
It seems unnecessary to encode a bunch of stuff into the state cookie when we
a) not going to use it to recreate the TCB (Association) from it
b) could keep any state wanted (such as created time) in the Association directly
We could maybe enforce a timely init by having a 60 second lifetime of the cookie. That doesn't need to be stored in the cookie itself however.
from webrtc.
Related Issues (20)
- H264Reader is extreamly slow
- BFCP
- Manually choose IP/Port or ICE candidate HOT 1
- TURN client wont close the socket HOT 1
- write_sample Does not return when client disconnects
- RTCDataChannel::close() does not wait for channel to close HOT 1
- The customized HEVC track failed HOT 1
- Migrate to async traits for handling event callbacks HOT 1
- Every video frame is sent as a keyframe HOT 1
- Newtype internal states
- High latency with small datachannel packets HOT 1
- Memory leakage and high cpu usage for each peer HOT 6
- insecure_skip_verify set to true in dtls_transport::prepare_transport HOT 3
- GStreamer based webkit2gtk fails with `Incoming unhandled RTCP ssrc(...), on_track will not be fired` HOT 4
- Invalid mac HOT 3
- Build failure without minor/major upgrade HOT 3
- TCP support for TURN (relay)
- Help creating TURN permissions? HOT 1
- If TURN channel is inactive, it times out and is never re-established HOT 1
- Incorrect DTLS handshake when acting as a server HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from webrtc.