On Tue, Dec 15, 2015 at 8:09 PM, Eric Dumazet <eric.duma...@gmail.com> wrote:
> On Tue, 2015-12-15 at 18:26 +0530, Prashant Upadhyaya wrote:
>> Hi,
>>
>> I open a raw socket for listening to all the UDP packets in a raw fashion --
>>
>> socket(AF_INET, SOCK_RAW, IPPROTO_UDP);
>>
>> Then I use recvfrom to read the packets over the socket.
>>
>> The above works mighty fine.
>> I want to find out if it is possible to 'load balance' the UDP flows
>> by opening up multiple instances of this socket and then possibly
>> setting some socket options so that I can scale up the reading via
>> multiple threads doing recvfrom on these from multiple cores.
>> (I know it is possible over packet sockets, but that is a different usecase)
>
> No plan yet to support fanout on multiple raw sockets.
>
>
Hi,
One question on the AF_INET6 raw sockets.
Here I don't get the ipv6 header at all when I read a packet.
I checked the RFC 3542 and it specifies the following as the ancillary
data which can be obtained --
Four similar pieces of information can be returned for a received
packet as ancillary data:
1. the destination IPv6 address,
2. the arriving interface index,
3. the arriving hop limit, and
4. the arriving traffic class value.
Now how do I obtain the 'src IPv6 address' ?
Regards
-Prashant
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