Re: pcap_inject() ruins my handmade packets
Hah, what was your actual code that worked? And hm, there are some things in the radiotap header that the raw transmit path pays attention to. -adrian On 30 October 2014 09:11, clutton clut...@zoho.com wrote: On Sat, 2014-10-25 at 19:54 -0700, Adrian Chadd wrote: On 25 October 2014 18:05, clutton clut...@zoho.com wrote: On Thu, 2014-10-23 at 17:32 -0700, Adrian Chadd wrote: Which version of FreeBSD are you using? I only recently fixed raw frame injection in monitor mode in FreeBSD-11. How are you trying to do raw frame injection? -adrian Any ideas? Why this doesn't work for me using pcap and works using sockets? https://www.kernel.org/doc/Documentation/networking/mac80211-injection.txt As I understand monitor mode can be used for injections now, is it right? As I remember some discussion here (a long time ago) said that the monitor mode is for monitoring :) and people should use other modes for injections. But since new pcap API was introduced, we can see that the monitor mode is not only for monitoring. It should be working. I haven't coded anything up recently to use monitor mode and inject, but I do know it now works. -adrian I finally made the «reaver» work, I even got banned by my AP. The problem is the pcap library, not the source of the program. Before sending any patches I think I need familiarize myself with libpcap more. Because it's pretty scary to patch program which has comments like this: * Back in 2002, Donald Lee at Cray wanted a DLT_ for * IP-over-FC: [skip] * 11 years later, Christian Svensson wanted to map * various ARPHRD_ values to DLT_FC_2 and * DLT_FC_2_WITH_FRAME_DELIMS for raw Fibre Channel * frames: One more question: no radiotap headers currently can be injected. Right? The underlie levels just ignore DLT_IEEE802_11_RADIO dlt. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org
Re: pcap_inject() ruins my handmade packets
On Thu, 2014-10-23 at 17:32 -0700, Adrian Chadd wrote: Which version of FreeBSD are you using? I only recently fixed raw frame injection in monitor mode in FreeBSD-11. How are you trying to do raw frame injection? -adrian Any ideas? Why this doesn't work for me using pcap and works using sockets? https://www.kernel.org/doc/Documentation/networking/mac80211-injection.txt As I understand monitor mode can be used for injections now, is it right? As I remember some discussion here (a long time ago) said that the monitor mode is for monitoring :) and people should use other modes for injections. But since new pcap API was introduced, we can see that the monitor mode is not only for monitoring. On 23 October 2014 17:21, clutton clut...@zoho.com wrote: Hi list. I'm porting a Linux application [reaver], and have a tough time figuring out what is wrong. The way how Linux users use it doesn't work I mean building packet like radiotap_header+frame+payload and use pcap_inject() for injections. Nevertheless, using the same packets with sockets work like a charm. Since I didn't find any working example with packet injections conjugates with pcap_inject for FreeBSD, I starting think it doesn't work on FreeBSD platform. Right now, I started using LD_PRELOAD with my own version of libpcap, because after end of day it uses write(), but why it is ruins my packets is not obvious for me yet. May be somebody could explain me? May be it's well known not fixable bug, and I'm just wasting my time. I really want to do this using libpcap! Using sockets is quicker approach for me, but you know, fixing libpcap will bring a lot of others apps to FreeBSD realm. ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org
Re: pcap_inject() ruins my handmade packets
On Thu, 2014-10-23 at 17:32 -0700, Adrian Chadd wrote: Which version of FreeBSD are you using? I only recently fixed raw frame injection in monitor mode in FreeBSD-11. How are you trying to do raw frame injection? -adrian HEAD, but I didn't update it more then month. I'm not using monitor mode, just ordinary one when I'm connected to AP, and ahdemo. Seems raw write works with both types well, and pcap_inject() doesn't. The scenario is that: handle = pcap_open_live(dev, BUFSIZ, 1, 0, errbuf); // tried without promisk, didn't help pcap_set_datalink(handle, DLT_IEEE802_11_RADIO); // I've tried others datalinks, and also skipping setting this like Linux users do, changing datalink here changes the way how packet is corrupted BUILD_PACKET_STEP() pcap_inject(handle, packet, packet_len); ___ freebsd-wireless@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to freebsd-wireless-unsubscr...@freebsd.org
