A portable userland SCTP stack for FreeBSD, OpenBSD, Linux, macOS, and Windows.
usrsctp is a portable, user-space implementation of the Stream Control Transmission Protocol (SCTP) stack. It provides a reliable, message-oriented transport layer protocol that supports features like multi-homing and multi-streaming, enabling applications to use SCTP without kernel dependencies.
Network engineers and developers building applications that require SCTP protocol features like multi-homing, multi-streaming, or reliable message delivery across diverse operating systems.
It offers a cross-platform, userland SCTP stack that avoids kernel modifications, simplifies integration, and provides consistent behavior across FreeBSD, OpenBSD, Linux, macOS, and Windows.
A portable SCTP userland stack
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Supports FreeBSD, OpenBSD, Linux, macOS, and Windows, as stated in the README, ensuring consistent SCTP behavior across diverse operating systems.
Operates entirely in user space, avoiding kernel dependencies and simplifying integration on systems without native SCTP support, per the project description.
Implements core SCTP features like reliable message delivery, multi-homing, and multi-streaming, enabling advanced networking capabilities in applications.
Continuous integration testing via Buildbot and GitHub Actions, indicated by badges in the README, shows ongoing maintenance and reliability.
User-space processing can lead to higher CPU usage and increased latency compared to kernel implementations, a common trade-off for portability.
Requires manual compilation and linking, as it's not a plug-and-play library; the README only points to a manual for setup instructions without beginner-friendly guides.
Being a niche protocol implementation, it has fewer resources and examples compared to mainstream stacks like TCP, making debugging and adoption more challenging.