8 Aug
2017
8 Aug
'17
11:31 p.m.
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The branch, laforge/ipv6 has been updated
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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/openggsn/commit/?id=56cbbae2724d8babc8cb6ee92b1d589…
commit 56cbbae2724d8babc8cb6ee92b1d58980495725d
Author: Harald Welte <laforge(a)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
http://cgit.osmocom.org/openggsn/commit/?id=4d2e4485ee9c5a9c8419ead4fd52821…
commit 4d2e4485ee9c5a9c8419ead4fd52821d6a1508bf
Author: Harald Welte <laforge(a)gnumonks.org>
Date: Tue Aug 8 18:10:43 2017 +0200
ippool: Extend pool to work with arbitrary-length prefixes
In IPv6 GPRS, we actually don't want to allocate an individual v6
address (like in IPv4), but we want to allocate a prefix. The
standard prefix lengh is 8 bytes, i.e. a /64 prefix. This patch
extends the pool to be able to work with such v6 prefixes.
Change-Id: I0cf700b6baf195a2e5fbea000531f801acaaa443
http://cgit.osmocom.org/openggsn/commit/?id=9dfd2d84e5539e7e7468c410ff50328…
commit 9dfd2d84e5539e7e7468c410ff50328e875b1eae
Author: Harald Welte <laforge(a)gnumonks.org>
Date: Tue Aug 8 18:09:36 2017 +0200
in46_addr: Add new function in46a_prefix_equal()
This function is used to compare an IPv6 address against another,
using the smaller of the two prefix lengths.
Change-Id: Ic993d8abdc90897cb55276f01ae3b8a5eadf5a0d
-----------------------------------------------------------------------
Summary of changes:
ggsn/Makefile.am | 2 +-
ggsn/checksum.c | 205 ++++++++++++++++++++++++++++++++++++++++++++++++++
ggsn/checksum.h | 13 ++++
ggsn/ggsn.c | 36 ++++++++-
ggsn/icmpv6.c | 225 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
lib/debug.c | 5 ++
lib/in46_addr.c | 19 +++++
lib/in46_addr.h | 1 +
lib/ippool.c | 17 +++--
lib/syserr.h | 1 +
10 files changed, 515 insertions(+), 9 deletions(-)
create mode 100644 ggsn/checksum.c
create mode 100644 ggsn/checksum.h
create mode 100644 ggsn/icmpv6.c
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