__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Received: from [203.197.252.37] by web55506.mail.re4.yahoo.com via HTTP; Wed, 04 Oct 2006 02:04:05 PDT Date: Wed, 4 Oct 2006 02:04:05 -0700 (PDT) From: rama krishna <[EMAIL PROTECTED]> Subject: problem analysing the raw rfb packets To: [EMAIL PROTECTED] MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Length: 875
hi all, Iam trying to analyse raw rfb packets. Iam capturing the raw packets while vnc server and client are communicating .Iam doing this on a different system.After capturing iam decoding the packets as per the rfb protocol. while analysing the captured packets i could understand the initial communication. The version message,secutity handshake,client init message and the server init message. The server sends its init msg with following values frame buffer width(fbw)=4 fbh=3 bpp=16 depth=16 bend=0 truecol=1 redmx=7936 gm=16128 bm=7936 rsf=11 gsf=5 bsf=0 pad1=0 pad2=0 next client sends setpixelformat msg with following values bpp=8 dep=6 bend=0 tcol=1 redm=768=gm=bm rsf=4 gsf=2 bsf=0 pad1=0 pad2=0 Then client again sends setEncodings message as follows pad=0 nencodings=1792 encoding types=17,33,16,1,5,2,0 in order nencodings is 1792 actually it listed only 7 encodings.The value is received as 7>>8=1792. I dont know why.And also the encoding types 17 & 33 are unknown. Then client again sends framebufferupdaterequest as incr=0 x=0,y=0 w=4,h=3 Then server sends frame bufferupdate msg as pad=0 nrects=768 The rect header gives following vcalues x=256,y=256,w=4096,h=4096 encoding type=17 I dont understand what these values mean.what The encoding type 17 means.The width and height of 4096 is not possible. For all the framebufferupdate message i get values like this only. Some values seem correct if i shift them right 8 times or 16 times or 24 times, While some values are correct as they are. Why this is happening. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ VNC-List mailing list [email protected] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
