On 2001-12-06, Doug Ambrisko wrote: > Marco Molteni writes: > | I am writing a small program that does a pcap_open_live() on the > | Aironet an device, PCMCIA mode. System is a recent -stable on a > | Toshiba Portege 7200 laptop. > | > | Now, pcap_open_live() takes more than 1 sec to return. Is this long > | time expected? > > Hmm, don't seem to recall that. My system is busy doing a make world > and stuff. I just tried it and on my busy machine it was less then > a second. Note I was not in RFMON mode. It might take longer when > I have to switch into RFMON mode. I can try that later. You might > try to compare it without RFMON if you are using RFMON.
Actually I am in RFMON mode. Also, I found something strange: the first time that pcap_open_live() is called, it is fast (50 ms), but subsequent calls are slow (1000 ms). If I remove and reinsert the card, first call is once more fast. # ./airomon an0 set monitor mode: 23 ms pcap_open_live: 52 ms ^C # ./airomon an0 set monitor mode: 24 ms pcap_open_live: 1089 ms ^C > FYI, I put a sample BPF packet dumper up at: > http://www.ambrisko.com/doug/an/dump_packet/ > I used it to debug the 802.11 packet problem and to look at the raw > Aironet Header packets. > > You'll see it has some test code to check gap length. > > This is on -stable with my 802.11 aligment fix. thanks a lot for this, I will try it out. marco To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message
