(usagi-users 03691) Router Alert Query

Hello,

I have a query related to Router Alert Option.
In ip6_ra_control() function in ipv6_sockglue.c file, you are checking this:

if (sk->type != SOCK_RAW || sk->num != IPPROTO_RAW)
  return -EINVAL;

I dint get the importance of sk->num != IPPROTO_RAW check.....
Why are you checking the local port to be IPPROTO_RAW, what i feel is it
should parse and handle all raw packets and not just IPPROTO_RAW packets.

I am working on multicast forwarding, for that we are creating an raw socket
with protocol as IPPROTO_ICMPV6, as ip6_ra_control has a check for
IPPROTO_RAW, its failing there.

Please comment on this...

Regards,
Gayatri