Simple Service Discovery Protocol (SSDP) Library for Android

SSDP is used as the discovery protocol for Universal Plug and Play (UPnP).

Use Case:

• Discover all Sonos (UPnP) speakers on the current WiFi network

How:

• Send M-SEARCH request via Multicast UDP
• Receive Unicast UDP response from compatible devices

References:

• https://tools.ietf.org/html/draft-cai-ssdp-v1-03#section-2.2.1
• http://www.upnp.org/specs/arch/UPnP-arch-DeviceArchitecture-v1.1.pdf