FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F10.2 2013-08-28T07:48:44Z 2013-08-28T07:48:44Z Ulrich Spörlein uqs@FreeBSD.org 2013-08-28T07:48:44Z urn:sha1:845e3c1de2901b199613d824568d5508feec3ad8 2009-06-06T17:01:44Z Robert Watson rwatson@FreeBSD.org 2009-06-06T17:01:44Z urn:sha1:d5fc25e5d6c52b306312784663ccad85923a9c76 require it. Submitted by: pjd 2009-03-19T01:43:03Z Bruce M Simpson bms@FreeBSD.org 2009-03-19T01:43:03Z urn:sha1:443fc3176dee8c923a5e1e465231de9dc4197489 This is purely a forwarding plane cleanup; no control plane code is involved. Summary: * Split IPv4 and IPv6 MROUTING support. The static compile-time kernel option remains the same, however, the modules may now be built for IPv4 and IPv6 separately as ip_mroute_mod and ip6_mroute_mod. * Clean up the IPv4 multicast forwarding code to use BSD queue and hash table constructs. Don't build our own timer abstractions when ratecheck() and timevalclear() etc will do. * Expose the multicast forwarding cache (MFC) and virtual interface table (VIF) as sysctls, to reduce netstat's dependence on libkvm for this information for running kernels. * bandwidth meters however still require libkvm. * Make the MFC hash table size a boot/load-time tunable ULONG, net.inet.ip.mfchashsize (defaults to 256). * Remove unused members from struct vif and struct mfc. * Kill RSVP support, as no current RSVP implementation uses it. These stubs could be moved to raw_ip.c. * Don't share locks or initialization between IPv4 and IPv6. * Don't use a static struct route_in6 in ip6_mroute.c. The v6 code is still using a cached struct route_in6, this is moved to mif6 for the time being. * More cleanup remains to be merged from ip_mroute.c to ip6_mroute.c. v4 path tested using ports/net/mcast-tools. v6 changes are mostly mechanical locking and *have not* been tested. As these changes partially break some kernel ABIs, they will not be MFCed. There is a lot more work to be done here. Reviewed by: Pavlin Radoslavov