于 2010年10月27日 01:25, Guy Harris 写道:
On Oct 26, 2010, at 7:43 AM, 刘昆 wrote:
In fact,I want to program to filter some certain URL or IP address in the packet but not the header just as when we use proxy to access a web ,the real URL is not in the header,but in the packet.
And when I find the tvb->real_data maybe the payload,and I use gdb to print (command:"print tvb->real_data") ,then I get a string showed on the terminal
"const guint8 *) 0x8b53042 "GET http://www.baidu.com/ HTTP/1.1\r\nHost:
www.baidu.com\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US;
rv:1.9.2.11) Gecko/20101013 Linux Mint/9 (Isadora)
Firefox/3.6.11\r\nAccept: text/html,applic"...
We can see the "www.baidu.com" displayed. And the string "www.baidu.com" is just I need,
We can see it twice - once in the URI, and once in the Host: header.
Where are you putting the code? If you're doing this with a tap, the tap listener gets passed a structure with two "char *" members, one of which, if not null, points to the URI for the request, and the other of which, if not null, points to the host from the Host: header.
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In fact I want add some codes base on wireshark.Now,I think I could add
the codes in packet-http.c:dissect_http .I want process the string
including "GET www.baidu.cocm..........." when wireshark dissect http
protocol.All I want to know is just how to process the tvb->real_data to
fetch the string just like gdb print
"const guint8 *) 0x8b53042 "GET http://www.baidu.com/ HTTP/1.1\r\nHost:
www.baidu.com\r\nUser-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US;
rv:1.9.2.11) Gecko/20101013 Linux Mint/9 (Isadora)
Firefox/3.6.11\r\nAccept: text/html,applic"...
