HTTP: send http request through established TCP connections
Quote from here.
getStr = 'GET / HTTP/1.1\r\nHost: www.google.com\r\n\r\n' request = IP(dst='www.google.com') / TCP(dport=80, sport=syn_ack[TCP].dport, seq=syn_ack[TCP].ack, ack=syn_ack[TCP].seq + 1, flags='A') / getStr reply = sr1(request)
or
>>> a=Ether()/IP(dst="www.slashdot.org")/TCP()/"GET /index.html HTTP/1.0 \n\n"
both creates a GET http request.
So, http is something that is pure text above tcp.
You can send HTTP status_codes also through pure text.
1. Syn->Synack->Ack
2.Send texts through tcp with the 5-tuples set.
3.every time get something from server and checked sum passed, it will send a ACK back to server
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in html file we created a form:
its POST form packet:
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