[PATCH V4 0/7] ipvs: IPv6 fragment handling for IPVS

[Jesper Dangaard Brouer <brouer@redhat.com>]

The following patchset implement IPv6 fragment handling for IPVS.

This work is based upon patches from Hans Schillstrom.  I have taken
over the patchset, in close agreement with Hans, because he don't have
(gotten allocated) time to complete his work.

I have cleaned up the patchset significantly, and split the patchset
up into seven patches.

The first 3 patches, are ready to be merged

 Patch01: Trivial changes, use compressed IPv6 address in output
 Patch02: IPv6 extend ICMPv6 handling for future types
 Patch03: Use config macro IS_ENABLED()

The next 4 patches, is V4 of the patches I have submitted earlier.
Where I have incorporated Julian's recent feedback.

- Notice that patch04 of patchset V3, have been dropped.

I have also tried to make the patches easier to review, by
reorganizing the changes, to be more strictly split (exthdr
vs. fragment handling).

I have also removed the API changes, and moved those to patch06.  This
is done, (1) to make it easier to review the patches, and (2) to allow
easier integration of Patricks idea and my RFC patch of caching exthdr
info in skb->cb[].  Thus, we can get these patches applied (and later
go back and apply the caching scheme easier).

 Patch04: Fix faulty IPv6 extension header handling in IPVS
 Patch05: Complete IPv6 fragment handling for IPVS
 Patch06: IPVS API change to avoid rescan of IPv6 exthdr
 Patch07: IPVS SIP fragment handling

The SIP frag handling have been split into its own patch, as I have
not been able to test this part my self.

This patchset is based upon:
  Pablo's nf-next tree:  git://1984.lsi.us.es/nf-next
  On top of:
    commit 2cbc78a29e76a2e92c172651204f3117491877d2
    (netfilter: combine ipt_REDIRECT and ip6t_REDIRECT)

---

Jesper Dangaard Brouer (7):
      ipvs: SIP fragment handling
      ipvs: API change to avoid rescan of IPv6 exthdr
      ipvs: Complete IPv6 fragment handling for IPVS
      ipvs: Fix faulty IPv6 extension header handling in IPVS
      ipvs: Use config macro IS_ENABLED()
      ipvs: IPv6 extend ICMPv6 handling for future types
      ipvs: Trivial changes, use compressed IPv6 address in output


 include/net/ip_vs.h                     |  194 +++++++++++----
 net/netfilter/ipvs/Kconfig              |    7 -
 net/netfilter/ipvs/ip_vs_conn.c         |   15 -
 net/netfilter/ipvs/ip_vs_core.c         |  404 +++++++++++++++++--------------
 net/netfilter/ipvs/ip_vs_dh.c           |    2 
 net/netfilter/ipvs/ip_vs_lblc.c         |    2 
 net/netfilter/ipvs/ip_vs_lblcr.c        |    2 
 net/netfilter/ipvs/ip_vs_pe_sip.c       |   21 +-
 net/netfilter/ipvs/ip_vs_proto.c        |    6 
 net/netfilter/ipvs/ip_vs_proto_ah_esp.c |    9 -
 net/netfilter/ipvs/ip_vs_proto_sctp.c   |   42 +--
 net/netfilter/ipvs/ip_vs_proto_tcp.c    |   40 +--
 net/netfilter/ipvs/ip_vs_proto_udp.c    |   41 +--
 net/netfilter/ipvs/ip_vs_sched.c        |    2 
 net/netfilter/ipvs/ip_vs_sh.c           |    2 
 net/netfilter/ipvs/ip_vs_xmit.c         |   73 +++---
 net/netfilter/xt_ipvs.c                 |    4 
 17 files changed, 504 insertions(+), 362 deletions(-)


--
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Sr. Network Kernel Developer at Red Hat
  Author of http://www.iptv-analyzer.org
  LinkedIn: http://www.linkedin.com/in/brouer