Header format in monitor mode
hvelayos at imit.kth.se
Thu Nov 27 09:32:54 EST 2003
I have realized that the resolution of mactime (frame timestamp) is 1
microsecond regardless of the length of the field.
Is it possible to increase the resolution of the frame timestamp?
> -----Original Message-----
> From: Gerald Britton [mailto:gbritton at doomcom.org]
> Sent: den 26 november 2003 22:07
> To: Hector Velayos
> Cc: hostap at shmoo.com
> Subject: Re: Header format in monitor mode
> On Wed, Nov 26, 2003 at 04:58:18PM +0100, Hector Velayos wrote:
> > The file hostap_wlan.h specifies three possible headers for
> > such frames:
> > struct hfa384x_rx_frame
> > struct linux_wlan_ng_prism_hdr
> > struct linux_wlan_ng_cap_hdr
> Actually, you get either just the 802.11 header, or the second 2 of those
> followed by the 802.11 header.
> Switch between them with: iwpriv wlan0 monitor_type X
> where X is 0 (802.11 only), 1 (old prism header), or 2 (caphdr).
> -- Gerald
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