I am using the Ralink 5390 card with the rt2800pci kernel module on ubuntu 11.10. I successfully created a mon0 interface, but when I run horst -s I get:

Wrong monitor type! Please use radiotap or prism2 headers

Question is, how do I create monX with radiotap or prism2 headers?

Thank you in advance.

Bill

the reasons for this are in the ath9k driver. without looking at the driver, i
guess it could be different lengths for received and transmitted packets or
different available information for different received packets.

> your code seems fine as its just reading on a raw socket and typecasting
> the buffer to a adiotap header. Also, there are no noise, signal values
> reported in case of running your code on ath9k driver ! Seems reasonable
> that you are reading the bitmap and checking the bit and then printing the
> value. Can you please give any reasonable explaination …

again, the reason for this is in the ath9k driver and mac80211 layer of the
linux networking stack. the main developers of mac80211 have decided some time
ago that they don’t care about signal and noise values and have removed the
corresponding (and well working) code. i and some others have protested, but
there was not enough demand for reporting signal and noise on a per-packet
basis. if you care about it, please ask on the linux-wireless mailinglist,
it’s easy enough to add the code again.

> what do you mean by saying n is not supported by your driver … I guess
> the code I looked into did not suggest anything like that ( at the level
> of just reading the radiotap headers)

sure, at this level there is no problem and horst can be used on n cards – by
saying n is not supported i just mean that horst knows nothing about 802.11n
specific packet types.

running ‘horst’ with ‘-q’ crashed on my system.
I supply a patch against the current git version.

Thank you for this nice tools
Uwe

————————————————————

diff –git a/main.c b/main.c
index affefde..a03f1b4 100644
— a/main.c
+++ b/main.c
@@ -113,7 +113,8 @@ printlog(const char *fmt, …)
/* fix up string for display log */
buf[0] = ‘\n’;
#if DISPLAY
- display_log(buf);
+ if (!conf.quiet)
+ display_log(buf);
#endif
}
}
@@ -341,7 +342,8 @@ handle_packet(struct packet_info* p)
update_essids(p, n);

#if !DO_DEBUG && DISPLAY
- update_display(p, n);
+ if (!conf.quiet)
+ update_display(p, n);
#endif
}

@@ -634,7 +636,8 @@ main(int argc, char** argv)
net_send_channel_config();
update_spectrum_durations();
#if DISPLAY
- update_display(NULL, NULL);
+ if (!conf.quiet)
+ update_display(NULL, NULL);
#endif
}
}

Warm wishes from Berlin and from what must be some kind of past life for you.
Angie

liebste grüsse von uns 4en
mena