> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Hannes > Gredler > Sent: mercoledi 14 aprile 2004 21.05 > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED]; Loris Degioanni > Subject: Re: [tcpdump-workers] Proposed new pcap format > > > On Wed, Apr 14, 2004 at 08:25:25AM +0200, Fulvio Risso wrote: > > | I agree with Loris. > | I know that this flag would be extremely useful, but there are > no guarantees > | that you're able to get this info from the NIC / NIC driver. > | Perhaps, what we should to is to use 2 bits for each flag, > where the first > | one means "flag is valid", and the second one it is the flag value. > | E.g.: > | > | 1 0 0 0 . . . . . . > | ^^^ ^^^ ^^^ ^^^ > | "incoming" flag packet is "outcoming" flag No meaning > | is valid not "incoming" is NOT valid > > > > why not assigining simple codepoints for the direction information; > > i.e. > > 0 ... invalid/undefined/unsupported etc. > 1 ... incoming > 2 ... outgoing
Just because "2" requires two bits in binary ;-)) What you say is more or less what I wrote; unfortunately I forgot to say that the flags string (in the example) is written in binary and every flag requires two bits ;-)) fulvio - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.