[lwip-users] STM32F4 LwIP HTTP Ethernet Bootloader (IAP)

[Müller , Martin , KN]

Hello everyone! My name is Martin and I'm quite new to LwIP. 

I am using the ST "In-application-programming over Ethernet" Application for an 
own Bootloader architecture. The Application and LwIP-Stack 1.3.1 are connected 
through RAW-API.  The File-Upload to the Microcontroller is done through a HTTP 
POST Method Form. A binary file of approximately 2 Megabytes is splited into 
~1500 TCP-Packets. 

My Problem is that I don't know how to stop the Transfer, if my HTTP 
Application detects packet with corrupt content. The Browser always sends all 
packets till the end. I could easily close the tcp connection, but I want to 
send a ErroPage in case wrong content is received. Therefore the tcp_close() 
Function is not the right choise.

Do you have any hints for me? Thank you all.

Bye.     

STM32 IAP over Ethernet:
http://www.st.com/st-web-ui/static/active/cn/resource/technical/document/application_note/DM00025236.pdf";