Search Linux Wireless

Re: [PATCH v2] nl80211: Don't verify owner_nlportid on NAN commands

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 26-06-17 18:52, Luca Coelho wrote:
> From: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
> 
> If NAN interface is created with NL80211_ATTR_SOCKET_OWNER, the socket
> that is used to create the interface is used for all NAN operations and
> reporting NAN events.
> However, it turns out that sending commands and receiving events on
> the same socket is not possible in a completely race-free way:
> If the socket buffer is overflowed by the events, the command response
> will not be sent. In that case the caller will block forever on recv.
> Using non-blocking socket for commands is more complicated and still
> the command response or ack may not be received.
> So, keep unicasting NAN events to the interface creator, but allow
> using a different socket for commands.
> 
> Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
> ---
> 
> In v2:
>    * Andrei fixed the documentation.

Almost there :-p Is the reference in NL80211_CMD_ADD_NAN_FUNCTION doc to
NL80211_ATTR_SOCKET_OWNER still warranted?

Regards,
Arend



[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux