openggsn.git branch laforge/ipv6 updated. 0.93-22-g8f5d38c

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gitosis at osmocom.org gitosis at osmocom.org
Fri Aug 11 08:46:58 UTC 2017


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The branch, laforge/ipv6 has been updated
  discards  86f42e4d9d17f4134018a556070d801adf64d974 (commit)
  discards  8b74b473e235cc409a4a443ba82ffd20df452b13 (commit)
  discards  95340e164e12a89a8e15750cd17503a89baaca9a (commit)
  discards  4f2c0e3e7627ffe0762d96f3289f71632ea9b32f (commit)
       via  8f5d38cc134a21151e6ab0e0c29b9106614df8b9 (commit)
       via  72a38b55e38407aa6c6b1cd32f848198ceee1287 (commit)
       via  1ae98777d9b1ee62e6900caf4bb580d1a42bb416 (commit)
       via  d46bcd236e93432c894a939f4e5810dc5e9b4974 (commit)

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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/openggsn/commit/?id=8f5d38cc134a21151e6ab0e0c29b9106614df8b9

commit 8f5d38cc134a21151e6ab0e0c29b9106614df8b9
Author: Harald Welte <laforge at gnumonks.org>
Date:   Thu Aug 3 00:47:03 2017 +0200

    Support setting TUN device IPv6 address + prefix
    
    As we can now have PDP contexts with IPv6 user IP payload,
    it is useful to extend the TUN related code to be able to
    configure the tun device IPv6 address + prefix length
    
    Change-Id: I899d21e52d02e0b8384af29ddd489ff19c8f2cf6

http://cgit.osmocom.org/openggsn/commit/?id=72a38b55e38407aa6c6b1cd32f848198ceee1287

commit 72a38b55e38407aa6c6b1cd32f848198ceee1287
Author: Harald Welte <laforge at gnumonks.org>
Date:   Wed Aug 9 21:58:12 2017 +0200

    IPv6: in46_addr: OSMO_ASSERT() in case of unsupported calls
    
    There's a bit of trickery with the ip_pool and it's "lengty=8" IPv6
    prefix handling, let's make sure we don't accidentially call any
    support functions with addresses of wrong length.
    
    Change-Id: I444c190bdcd18780344e1f0dad4faf3bcf9da5a5

http://cgit.osmocom.org/openggsn/commit/?id=1ae98777d9b1ee62e6900caf4bb580d1a42bb416

commit 1ae98777d9b1ee62e6900caf4bb580d1a42bb416
Author: Harald Welte <laforge at gnumonks.org>
Date:   Wed Aug 9 20:28:52 2017 +0200

    IPv6: Support PCO for IPv6 DNS addresses
    
    In IPv6, DNS server information is not passed along as IPCP6 like
    in IPv5 with IPCP.  The reason is that IPCP6 (for PPP) doesn't
    support passing DNS server information.  Rather, the relevant RFCs
    indicate DHCPv6 should be used even over point-to-point links.
    
    3GPP decided to avoid DHCPv6 dependency for stateless autoconfiguration
    (the only mandatory IPv6 configuration mechanism) and added some new
    non-PPP-style PCO information elements ("containers") which can among
    other things inform a MS about IPV6 DNS servers.
    
    That same mechanism can also be used to inform the MS about IPv4 DNS
    servers, so for IPv4 there are now two competing mechanisms: IPCP and
    the new "native" PCO container.  With this patch, we support both
    for IPv4.
    
    Change-Id: I21499afd61def8c925f7838bde76f34d28214b56

http://cgit.osmocom.org/openggsn/commit/?id=d46bcd236e93432c894a939f4e5810dc5e9b4974

commit d46bcd236e93432c894a939f4e5810dc5e9b4974
Author: Harald Welte <laforge at gnumonks.org>
Date:   Tue Aug 8 23:27:22 2017 +0200

    IPv6: Implement IPv6 prefix assignment via ICMPv6 router advertisement
    
    The 3GPP specs are quite strange when it comes to how an IPv6 address
    or rather prefix is assigned to an IPv6 PDP context.  The designated
    method for allocating the IPv6 address via the PDP EUA (End User
    Address) Information Element in the GTP signalling plane is *not*
    used to allocate the address/prefix.  Instead, the EUA is used to
    allocate an "interface identifier" to the MS, which it the uses
    to derive its link-local source address to send a router solicitation.
    
    The GGSN subsequently answers witha router advertisement, advertising
    a single/64 prefix, whihcthe MS then uses to generate it's real IPv6
    source address for subsequent communication.
    
    Change-Id: Icddf7d30e01d76a4784bcef5787b36f52f703a9f

-----------------------------------------------------------------------

Summary of changes:
 ggsn/checksum.c | 12 +++++++++---
 ggsn/icmpv6.c   | 12 ++++++++----
 2 files changed, 17 insertions(+), 7 deletions(-)


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