I'm working on hacking my wemo. I'd like to determine how it talks back and forth over the network. What I know at this time is that when the mobile app is running both the mobile app and the wemo device are talking over UPnP
I had to turn off UPnP on my router to use the following tools. I determined the protocol was UPnP by jumping onto my DD-WRT router, installing tcpdump and capturing several packet dumps and examining them.
The best thing UPnP analysis tool I found was miranda. You can get it from the downloads page here: Miranda
Under the covers it uses python twisted and Coherence: Coherence
Read more about miranda: Miranda Article
You'll see if you read the logs below that the host number changes, I had to keep restarting the program, rediscovering the device, and that changes the order in miranda.
I think with this I've got everything I need to start making requests
I had some issues with miranda printing out the whole device info that it gathered, I'm checking into that, but in the gist they are pulled out of python and pretty-printed:
I have two guesses at how things work with IFFT. I'll be exploring those soon and update the post.
30th July 2012
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I'm Issac. I live in Oakland. I make things for fun and money. I use electronics and computers and software. I manage teams and projects top to bottom. I've worked as a consultant, software engineer, hardware designer, artist, technology director and team lead. I do occasional fabrication in wood and plastic and metal. I run a boutique interactive agency with my brother Kasey and a roving cast of experts at Kelly Creative Tech. I was the Director of Technology for Nonchalance during the The Latitude Society project. I was the Lead Web Developer and then Technical Marketing Engineer at Nebula, which made an OpenStack Appliance. I've been building things on the web and in person since leaving Ohio State University's Electrical and Computer engineering program in 2007. Lots of other really dorky things happened to me before that, like dropping out of high school to go to university, getting an Eagle Scout award, and getting 6th in a state-wide algebra competition. I have an affinity for hopscotch.