Hello Andrew, > I discovered that the current description of the IPV6_ROUTER_ALERT > sockopt in ipv6.7 is significantly wrong. A patch to fix the > description is below. I sent a version of this earlier in the year to > mtk-manpages@xxxxxxx, but nothing happened with it at the time. Hmmm -- somehow that message got dropped. I found it in my trash -- sorry about that. I've applied your patch for 2.68. Thanks, Michael > The correction is based on reading the relevant parts of the kernel > source code, and backed up by some test programs. The main bits of code > in the kernel (in case someone wants to double-check my update) are > net/ipv6/ipv6_sockglue.c:ip6_ra_control() and > net/ipv6/ip6_output.c:ip6_call_ra_chain(). > > The patch is against man-pages-2.66. > --- man7/ipv6.7.orig 2007-10-14 11:59:46.000000000 +0100 > +++ man7/ipv6.7 2007-10-14 12:05:15.000000000 +0100 > @@ -233,10 +233,17 @@ > Argument is a pointer to boolean. > .TP > .B IPV6_ROUTER_ALERT > -Pass all forwarded packets containing an router alert option to > +Pass forwarded packets containing a router alert hop-by-hop option to > this socket. > -Only allowed for datagram sockets and for root. > -Argument is a pointer to boolean. > +Only allowed for SOCK_RAW sockets. > +The tapped packets are not forwarded by the kernel, it is the > +user's responsibility to send them out again. > +Argument is a pointer to an integer. > +A positive integer indicates a router alert option value to intercept. > +Packets carrying a router alert option with a value field containing > +this integer will be delivered to the socket. > +A negative integer disables delivery of packets with router alert options > +to this socket. > .TP > .B IPV6_UNICAST_HOPS > Set the unicast hop limit for the socket. > - > To unsubscribe from this list: send the line "unsubscribe linux-man" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Michael Kerrisk maintainer of Linux man pages Sections 2, 3, 4, 5, and 7 Want to help with man page maintenance? Grab the latest tarball at http://www.kernel.org/pub/linux/docs/manpages/ read the HOWTOHELP file and grep the source files for 'FIXME'. - To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
