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authorSverker Eriksson <[email protected]>2019-03-20 15:42:34 +0100
committerSverker Eriksson <[email protected]>2019-03-22 19:40:36 +0100
commitbd8f6106d44a58c261920eef72842bb3bc5a4968 (patch)
tree7472e2c80a2ee885cfcf767b0cb541a3417c0fd6 /lib
parente2cf4a8a4b03b9f430ba228276c3b2629159e832 (diff)
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epmd: Support 32-bit creation values in local node
* Increase distribution version from 5 to 6 * Introduce new ALIVE2_X_RESP with 32-bit creation as reply to ALIVE2_REQ when sender dist version >= 6 * Still reply old ALIVE2_RESP with tiny creation 1..3 if sender dist version < 6.
Diffstat (limited to 'lib')
-rw-r--r--lib/kernel/src/erl_epmd.erl11
-rw-r--r--lib/kernel/test/erl_distribution_wb_SUITE.erl58
2 files changed, 45 insertions, 24 deletions
diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl
index 7a14e2635c..f31a1722ce 100644
--- a/lib/kernel/src/erl_epmd.erl
+++ b/lib/kernel/src/erl_epmd.erl
@@ -33,10 +33,10 @@
-define(erlang_daemon_port, 4369).
-endif.
-ifndef(epmd_dist_high).
--define(epmd_dist_high, 4370).
+-define(epmd_dist_high, 6).
-endif.
-ifndef(epmd_dist_low).
--define(epmd_dist_low, 4370).
+-define(epmd_dist_low, 5).
-endif.
%% External exports
@@ -342,6 +342,13 @@ wait_for_reg_reply(Socket, SoFar) ->
receive
{tcp, Socket, Data0} ->
case SoFar ++ Data0 of
+ [$v, Result, A, B, C, D] ->
+ case Result of
+ 0 ->
+ {alive, Socket, ?u32(A, B, C, D)};
+ _ ->
+ {error, duplicate_name}
+ end;
[$y, Result, A, B] ->
case Result of
0 ->
diff --git a/lib/kernel/test/erl_distribution_wb_SUITE.erl b/lib/kernel/test/erl_distribution_wb_SUITE.erl
index 8256444bdc..f3db6705a2 100644
--- a/lib/kernel/test/erl_distribution_wb_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_wb_SUITE.erl
@@ -47,6 +47,9 @@
R
end).
+-define(EPMD_DIST_HIGH, 6).
+-define(EPMD_DIST_LOW, 5).
+
-define(DFLAG_PUBLISHED,1).
-define(DFLAG_ATOM_CACHE,2).
-define(DFLAG_EXTENDED_REFERENCES,4).
@@ -57,15 +60,18 @@
-define(DFLAG_NEW_FUN_TAGS,16#80).
-define(DFLAG_EXTENDED_PIDS_PORTS,16#100).
-define(DFLAG_UTF8_ATOMS, 16#10000).
+-define(DFLAG_BIG_CREATION, 16#40000).
%% From R9 and forward extended references is compulsory
%% From R10 and forward extended pids and ports are compulsory
%% From R20 and forward UTF8 atoms are compulsory
%% From R21 and forward NEW_FUN_TAGS is compulsory (no more tuple fallback {fun, ...})
+%% From R22 and forward BIG_CREATION is compulsory
-define(COMPULSORY_DFLAGS, (?DFLAG_EXTENDED_REFERENCES bor
?DFLAG_EXTENDED_PIDS_PORTS bor
?DFLAG_UTF8_ATOMS bor
- ?DFLAG_NEW_FUN_TAGS)).
+ ?DFLAG_NEW_FUN_TAGS bor
+ ?DFLAG_BIG_CREATION)).
-define(PASS_THROUGH, $p).
@@ -208,9 +214,9 @@ pending_up_md5(Node,OurName,Cookie) ->
{ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
ok = recv_status(SocketA),
- {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1)
OurChallengeA = gen_challenge(),
OurDigestA = gen_digest(HisChallengeA, Cookie),
send_challenge_reply(SocketA, OurChallengeA, OurDigestA),
@@ -224,11 +230,11 @@ pending_up_md5(Node,OurName,Cookie) ->
{ok, SocketB} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketB,OurName,5),
+ send_name(SocketB,OurName, ?EPMD_DIST_HIGH),
alive = recv_status(SocketB),
send_status(SocketB, true),
gen_tcp:close(SocketA),
- {hidden,Node,5,HisChallengeB} = recv_challenge(SocketB), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeB} = recv_challenge(SocketB), % See 1)
OurChallengeB = gen_challenge(),
OurDigestB = gen_digest(HisChallengeB, Cookie),
send_challenge_reply(SocketB, OurChallengeB, OurDigestB),
@@ -254,7 +260,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
Else ->
exit(Else)
end,
- EpmdSocket = register(OurName, LSocket, 1, 5),
+ EpmdSocket = register_node(OurName, LSocket, ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH),
{NA, NB} = split(Node),
rpc:cast(Node, net_adm, ping, [OurName]),
receive after 1000 -> ok end,
@@ -262,7 +268,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
{ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo,
[{active,false},
{packet,2}]),
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
%% We are still not marked up on the other side, as our first message
%% is not sent.
SocketB = case gen_tcp:accept(LSocket) of
@@ -275,11 +281,11 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node ->
%% Now we are expected to close A
gen_tcp:close(SocketA),
%% But still Socket B will continue
- {normal,Node,5} = recv_name(SocketB), % See 1)
+ {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1)
send_status(SocketB, ok_simultaneous),
MyChallengeB = gen_challenge(),
- send_challenge(SocketB, OurName, MyChallengeB,5),
- HisChallengeB = recv_challenge_reply(SocketB, MyChallengeB, Cookie),
+ send_challenge(SocketB, OurName, MyChallengeB, ?EPMD_DIST_HIGH),
+ {ok,HisChallengeB} = recv_challenge_reply(SocketB, MyChallengeB, Cookie),
DigestB = gen_digest(HisChallengeB,Cookie),
send_challenge_ack(SocketB, DigestB),
inet:setopts(SocketB, [{active, false},
@@ -301,7 +307,8 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
Else ->
exit(Else)
end,
- EpmdSocket = register(OurName, LSocket, 1, 5),
+ EpmdSocket = register_node(OurName, LSocket,
+ ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH),
{NA, NB} = split(Node),
rpc:cast(Node, net_adm, ping, [OurName]),
receive after 1000 -> ok end,
@@ -315,16 +322,16 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
Else2 ->
exit(Else2)
end,
- send_name(SocketA,OurName,5),
+ send_name(SocketA,OurName, ?EPMD_DIST_HIGH),
ok_simultaneous = recv_status(SocketA),
%% Socket B should die during this
case catch begin
- {normal,Node,5} = recv_name(SocketB), % See 1)
+ {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1)
send_status(SocketB, ok_simultaneous),
MyChallengeB = gen_challenge(),
send_challenge(SocketB, OurName, MyChallengeB,
5),
- HisChallengeB = recv_challenge_reply(
+ {ok,HisChallengeB} = recv_challenge_reply(
SocketB,
MyChallengeB,
Cookie),
@@ -346,7 +353,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node ->
end,
gen_tcp:close(SocketB),
%% But still Socket A will continue
- {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1)
+ {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1)
OurChallengeA = gen_challenge(),
OurDigestA = gen_digest(HisChallengeA, Cookie),
send_challenge_reply(SocketA, OurChallengeA, OurDigestA),
@@ -372,7 +379,7 @@ missing_compulsory_dflags(Config) when is_list(Config) ->
[{active,false},
{packet,2}]),
BadNode = list_to_atom(atom_to_list(Name2)++"@"++atom_to_list(NB)),
- send_name(SocketA,BadNode,5,0),
+ send_name(SocketA,BadNode, ?EPMD_DIST_HIGH, 0),
not_allowed = recv_status(SocketA),
gen_tcp:close(SocketA),
stop_node(Node),
@@ -516,16 +523,16 @@ send_challenge_reply(Socket, Challenge, Digest) ->
recv_challenge_reply(Socket, ChallengeA, Cookie) ->
case gen_tcp:recv(Socket, 0) of
- {ok,[$r,CB3,CB2,CB1,CB0 | SumB]} when length(SumB) == 16 ->
+ {ok,[$r,CB3,CB2,CB1,CB0 | SumB]=Data} when length(SumB) == 16 ->
SumA = gen_digest(ChallengeA, Cookie),
ChallengeB = ?u32(CB3,CB2,CB1,CB0),
if SumB == SumA ->
- ChallengeB;
+ {ok,ChallengeB};
true ->
- ?shutdown(bad_challenge_reply)
+ {error,Data}
end;
- _ ->
- ?shutdown(no_node)
+ Err ->
+ {error,Err}
end.
send_challenge_ack(Socket, Digest) ->
@@ -620,6 +627,13 @@ wait_for_reg_reply(Socket, SoFar) ->
receive
{tcp, Socket, Data0} ->
case SoFar ++ Data0 of
+ [$v, Result, A, B, C, D] ->
+ case Result of
+ 0 ->
+ {alive, Socket, ?u32(A, B, C, D)};
+ _ ->
+ {error, duplicate_name}
+ end;
[$y, Result, A, B] ->
case Result of
0 ->
@@ -640,7 +654,7 @@ wait_for_reg_reply(Socket, SoFar) ->
end.
-register(NodeName, ListenSocket, VLow, VHigh) ->
+register_node(NodeName, ListenSocket, VLow, VHigh) ->
{ok,{_,TcpPort}} = inet:sockname(ListenSocket),
case do_register_node(NodeName, TcpPort, VLow, VHigh) of
{alive, Socket, _Creation} ->