The lwIP stack, outside of the MityDSP porting layer, was written by Adam Dunkels of the Swedish Institute of Computer Science and other contributors. More information on the lwIP stack may be found at http://www.sics.se/~adam/lwip and http://savannah.nongnu.org/projects/lwip.
The MityDSP porting layer is copyright by Critical Link, LLC. The code written by Critical Link does not fall under the same redistribution guidelines (outlined below) as the sections copyrighted by other individuals.
The lwIP (Light Weight IP) stack is copyright by:
Copyright (c) 2001-2007 Swedish Institute of Computer Science.
Copyright (c) 2001-2007 Leon Woestenberg
Copyright (c) 2001-2007 Axon Digital Design B.V., The Netherlands.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.