inject mode

[Joshua Wright]

Kevin,

What version of HostAP are you using?  I believe the netlink usersock method was deprecated long ago.

I have had some success using HostAP to do arbitary packet injection, though I keep receiving ENOGAIN followed by when ENOBUFS when in non-blocking mode and attempting to transmit WEP encrypted packets.  I haven't quite figured out why this is happening, though I'll share what I have for code if anyone is interested.  Injection of management frames seems to work OK, control frames do not work.

-Joshua Wright
Senior Network and Security Architect
Johnson & Wales University
Joshua.Wright at jwu.edu 
http://home.jwu.edu/jwright/

pgpkey: http://home.jwu.edu/jwright/pgpkey.htm
fingerprint: FDA5 12FC F391 3740 E0AE BDB6 8FE2 FC0A D44B 4A73


>   I am trying to use the inject provided by the hostap to 
> send out some
> frames, but every time, the packets will stop being sent 
> after a while and I
> have to rm /dev/nl_usersock and create it again to resume the sending.
>   Anybody have idea what should I do to keep sending out the frames?
>   Thanks a lot.