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-rw-r--r--lib/kernel/src/dist_util.erl81
-rw-r--r--lib/ssl/src/inet_tls_dist.erl55
2 files changed, 79 insertions, 57 deletions
diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl
index b325fc5456..402d474c6d 100644
--- a/lib/kernel/src/dist_util.erl
+++ b/lib/kernel/src/dist_util.erl
@@ -30,7 +30,7 @@
strict_order_flags/0,
start_timer/1, setup_timer/2,
reset_timer/1, cancel_timer/1,
- is_allowed/2,
+ is_node_name/1, split_node/1, is_allowed/2,
shutdown/3, shutdown/4]).
-import(error_logger,[error_msg/2]).
@@ -632,7 +632,7 @@ recv_name(#hs_data{socket = Socket, f_recv = Recv} = HSData) ->
{ok,
[$n,VersionA, VersionB, Flag1, Flag2, Flag3, Flag4
| OtherNode] = Data} ->
- case is_valid_name(OtherNode) of
+ case is_node_name(OtherNode) of
true ->
Flags = ?u32(Flag1, Flag2, Flag3, Flag4),
Version = ?u16(VersionA,VersionB),
@@ -644,6 +644,31 @@ recv_name(#hs_data{socket = Socket, f_recv = Recv} = HSData) ->
?shutdown(no_node)
end.
+is_node_name(OtherNodeName) ->
+ case string:split(OtherNodeName, "@") of
+ [Name,Host] ->
+ (not string:is_empty(Name))
+ andalso (not string:is_empty(Host));
+ _ ->
+ false
+ end.
+
+split_node(Node) ->
+ case string:split(listify_node(Node), "@") of
+ [Name,Host] = Split ->
+ case
+ (not string:is_empty(Name))
+ andalso (not string:is_empty(Host))
+ of
+ true ->
+ {Name,Host};
+ false ->
+ Split
+ end;
+ Split ->
+ Split
+ end.
+
%%
%% check if connecting node is allowed to connect
%% with allow-node-scheme
@@ -661,32 +686,44 @@ is_allowed(#hs_data{allowed = Allowed} = HSData, Flags, Node, Version) ->
?shutdown2(Node, {is_allowed, not_allowed})
end.
+%% Allow Node on Allowed node list, and also if host part
+%% of Node matches Allowed list item. The Allowed list
+%% contains node names or host names.
+%%
is_allowed(_Node, []) ->
false;
+is_allowed(Node, [Node|_Allowed]) when is_atom(Node) ->
+ true;
is_allowed(Node, [AllowedNode|Allowed]) ->
- case is_nodename_equal(Node, AllowedNode) of
- true ->
- true;
- false ->
+ case split_node(AllowedNode) of
+ {AllowedName,AllowedHost} ->
+ %% Allowed node name
+ case split_node(Node) of
+ {AllowedName,AllowedHost} ->
+ true;
+ _ ->
+ is_allowed(Node, Allowed)
+ end;
+ [AllowedHost] ->
+ %% Allowed host name
+ case split_node(Node) of
+ {_,AllowedHost} ->
+ %% Matching Host part
+ true;
+ [AllowedHost] ->
+ %% Host matches Host
+ true;
+ _ ->
+ is_allowed(Node, Allowed)
+ end;
+ _ ->
is_allowed(Node, Allowed)
end.
-is_nodename_equal(A, B) when is_atom(A), is_atom(B) ->
- A =:= B;
-is_nodename_equal(A, B) when is_atom(A) ->
- is_nodename_equal(atom_to_list(A), B);
-is_nodename_equal(A, B) when is_atom(B) ->
- is_nodename_equal(A, atom_to_list(B));
-is_nodename_equal(A, B) when is_list(A), is_list(B) ->
- A =:= B.
-
-is_valid_name(OtherNodeName) ->
- case string:lexemes(OtherNodeName,"@") of
- [_OtherNodeName,_OtherNodeHost] ->
- true;
- _else ->
- false
- end.
+listify_node(Atom) when is_atom(Atom) ->
+ atom_to_list(Atom);
+listify_node(Node) when is_list(Node) ->
+ Node.
publish_type(Flags) ->
case Flags band ?DFLAG_PUBLISHED of
diff --git a/lib/ssl/src/inet_tls_dist.erl b/lib/ssl/src/inet_tls_dist.erl
index 3257e3a6c2..d4215c8f83 100644
--- a/lib/ssl/src/inet_tls_dist.erl
+++ b/lib/ssl/src/inet_tls_dist.erl
@@ -29,7 +29,7 @@
-export([gen_listen/2, gen_accept/2, gen_accept_connection/6,
gen_setup/6, gen_close/2, gen_select/2]).
--export([split_node/1, nodelay/0]).
+-export([nodelay/0]).
-export([verify_client/3, verify_server/3, cert_nodes/1]).
@@ -52,25 +52,20 @@ select(Node) ->
gen_select(inet_tcp, Node).
gen_select(Driver, Node) ->
- case split_node(Node) of
- false ->
- false;
- Host ->
+ case dist_util:split_node(Node) of
+ {_,Host} ->
case Driver:getaddr(Host) of
{ok, _} -> true;
_ -> false
- end
+ end;
+ _ ->
+ false
end.
%% -------------------------------------------------------------------------
is_node_name(Node) ->
- case split_node(Node) of
- false ->
- false;
- _Host ->
- true
- end.
+ dist_util:is_node_name(Node).
%% -------------------------------------------------------------------------
@@ -145,13 +140,13 @@ f_getll(DistCtrl) ->
f_address(SslSocket, Node) ->
case ssl:peername(SslSocket) of
{ok, Address} ->
- case split_node(Node) of
- false ->
- {error, no_node};
- Host ->
+ case dist_util:split_node(Node) of
+ {_,Host} ->
#net_address{
address=Address, host=Host,
- protocol=tls, family=inet}
+ protocol=tls, family=inet};
+ _ ->
+ {error, no_node}
end
end.
@@ -429,7 +424,7 @@ gen_setup(Driver, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
[link, {priority, max}])).
do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
- [Name, Address] = splitnode(Driver, Node, LongOrShortNames),
+ {Name, Address} = split_node(Driver, Node, LongOrShortNames),
case Driver:getaddr(Address) of
{ok, Ip} ->
Timer = trace(dist_util:start_timer(SetupTime)),
@@ -654,9 +649,9 @@ parse_rdn([_|Rdn]) ->
%% If Node is illegal terminate the connection setup!!
-splitnode(Driver, Node, LongOrShortNames) ->
- case string:split(atom_to_list(Node), "@") of
- [Name, Host] when Host =/= [] ->
+split_node(Driver, Node, LongOrShortNames) ->
+ case dist_util:split_node(Node) of
+ {Name, Host} ->
check_node(Driver, Name, Node, Host, LongOrShortNames);
[_] ->
error_logger:error_msg(
@@ -671,10 +666,10 @@ splitnode(Driver, Node, LongOrShortNames) ->
check_node(Driver, Name, Node, Host, LongOrShortNames) ->
case string:split(Host, ".") of
- [_] when LongOrShortNames == longnames ->
+ [_] when LongOrShortNames =:= longnames ->
case Driver:parse_address(Host) of
{ok, _} ->
- [Name, Host];
+ {Name, Host};
_ ->
error_logger:error_msg(
"** System running to use "
@@ -683,7 +678,7 @@ check_node(Driver, Name, Node, Host, LongOrShortNames) ->
[Host]),
?shutdown2(Node, trace({not_longnames, Host}))
end;
- [_, _] when LongOrShortNames == shortnames ->
+ [_,_|_] when LongOrShortNames =:= shortnames ->
error_logger:error_msg(
"** System NOT running to use "
"fully qualified hostnames **~n"
@@ -691,19 +686,9 @@ check_node(Driver, Name, Node, Host, LongOrShortNames) ->
[Host]),
?shutdown2(Node, trace({not_shortnames, Host}));
_ ->
- [Name, Host]
+ {Name, Host}
end.
-split_node(Node) when is_atom(Node) ->
- case string:split(atom_to_list(Node), "@") of
- [Name, Host] when Name =/= [], Host =/= [] ->
- Host;
- _ ->
- false
- end;
-split_node(_) ->
- false.
-
%% -------------------------------------------------------------------------
connect_options(Opts) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 19:33:06 +0000