pcap_inject() ruins my handmade packets

[clutton]

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 <clutton at 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.
> >
> >
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