Re: SO_TIMESTAMP vs ICMP6?

[mlelstv%serpens.de@localhost (Michael van Elst)]

mouse%Rodents-Montreal.ORG@localhost (Mouse) writes:

>I'm trying to build a program that sends and receives ICMP6 packets.  I
>want accurate timestamps on the received packets.  So, I turned on
>SO_TIMESTAMP on the socket.

>It didn't work.  recvmsg returned zero bytes of control data.  (It
>works as expected for IPv4.)

>So I tried it on a 9.1 machine I have root access to at work, only to
>find it doesn't work there either.


Looks like a trivial bug, also in -current.

raw_ip.c:

        if (last->inp_flags & INP_CONTROLOPTS ||
            SOOPT_TIMESTAMP(last->inp_socket->so_options))
                ip_savecontrol(last, &opts, ip, n); 

raw_ip6.c:

        if (last->inp_flags & IN6P_CONTROLOPTS)
                ip6_savecontrol(last, &opts, ip6, n);