[erlang-patches] [PATCH] epmd: support IPv6 node registration
Fri May 3 16:04:13 CEST 2013
On 05/03/2013 03:44 PM, Fredrik wrote:
> On 05/03/2013 03:27 PM, Michael Santos wrote:
>> On Wed, Feb 20, 2013 at 07:55:17AM -0500, Michael Santos wrote:
>>> Allow IPv6 nodes to register with and query epmd. On systems with
>>> IPv6 support:
>>> * epmd listens on both the IPv4 and IPv6 ANY or loopback sockets
>>> * the epmd cli client connects to epmd over the IPv6 loopback
>>> * distributed nodes started with "-proto_dist inet6_tcp" will register
>>> with epmd over IPv6
>>> The interaction between IPv4 and IPv6 sockets depends on the platform:
>>> * FreeBSD allows multiple "specific" sockets to bind the same port
>>> as 2 sockets listening to the same port on ANY and the loopback).
>>> Binding port 4369 to IPv4 and IPv6 sockets simulataneously is
>>> * Linux does not allow the same port to be bound by different sockets.
>>> Setting the IPV6_V6ONLY socket option is required.
>>> * Windows
>>> The behaviour differs depending on the version of Windows:
>>> According to the site, sockets on Windows XP with Service Pack 1
>>> and Windows Server 2003 will only listen on either IPv4 or IPv6, so
>>> creating two sockets is required to service IPv4 and IPv6 traffic on
>>> the same port. The IPV6_V6ONLY socket option is not supported.
>>> For Windows Vista and later, a single socket can handle IPv4 and
>>> traffic for the same port. The IPV6_V6ONLY socket option is
>>> and is enabled for IPv6 sockets by default.
>>> erts/doc/src/epmd.xml | 2 +-
>>> erts/doc/src/erl.xml | 22 +++++
>>> erts/epmd/src/epmd.c | 6 +-
>>> erts/epmd/src/epmd_cli.c | 11 ++-
>>> erts/epmd/src/epmd_int.h | 63 +++++++++----
>>> erts/epmd/src/epmd_srv.c | 184
>>> erts/epmd/test/epmd_SUITE.erl | 33 ++++++-
>>> lib/kernel/src/erl_epmd.erl | 18 ++--
>>> lib/kernel/src/inet6_tcp_dist.erl | 2 +-
>>> 9 files changed, 248 insertions(+), 93 deletions(-)
>> erlang-patches mailing list
> I thought that I've already mailed you back regarding this patch. But
> now I don't seem to remember what I wanted you to do about it.
> I will run it in 'pu' builds over the weekend. If it turns out OK it
> will be reviewed.
Found out what I was suppose to mail you about:
It does not build on windows;
epmd_srv.o : error LNK2019: unresolved external symbol IN6_ARE_ADDR_EQUAL referenced in function conn_local_peer_check
epmd_srv.o : error LNK2019: unresolved external symbol IN6_IS_ADDR_LOOPBACK referenced in function conn_local_peer_check
****/bin/win32/epmd.exe : fatal error LNK1120: 2 unresolved externals
BR Fredrik Gustafsson
Erlang OTP Team
More information about the erlang-patches