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H3C Client For SYSU East Campus

NOTE: Because a bug(You can't inject packet using python version of pcap after sleep or reboot.) exists in my modified fork of YaH3C. Thus, I rewrote H3C in C to avoid the bug of pcap in python. Tested in OSX.

Installation

  1. Download this repository
  2. Install libpcap
  3. Change the username, password, device_name in main.c
  4. cd into this directory and make
  5. Run sysuh3c, you are ready to go

Sequence Diagram

# Login
---> Start
<--- Request, Identity
---> Response, Identity
<--- Request, EAP-MD5-CHALLENGE
---> Response, EAP-MD5-CHALLENGE
<--- Some unknown code
<--- Success

# Then enter random check loop
<--- Request, Identity
---> Response, Identity

# Logoff
# Not responding to random check loop also results in auto-logoff
---> Logoff
<--- Failure

Request ID, version hash + username

EAP-MD5-CHALLENGE, num + username

num is calculated by ( (first 16 character of case-sensitive password) xor (16 bytes md5 data converted to decimal) )

Thanks to...