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-rw-r--r--lib/diameter/doc/src/diameter_transport.xml7
-rw-r--r--lib/diameter/src/base/diameter_peer_fsm.erl23
2 files changed, 15 insertions, 15 deletions
diff --git a/lib/diameter/doc/src/diameter_transport.xml b/lib/diameter/doc/src/diameter_transport.xml
index 8bccf6521e..9161bd1f48 100644
--- a/lib/diameter/doc/src/diameter_transport.xml
+++ b/lib/diameter/doc/src/diameter_transport.xml
@@ -137,15 +137,14 @@ passed to the former.</p>
<p>
The start function should use the <c>Host-IP-Address</c> list in
-<c>Svc</c> and/or <c>Config</c> to select an appropriate list of local
-IP addresses, and should return this list if different from the
-<c>Svc</c> addresses.
+<c>Svc</c> and/or <c>Config</c> to select and return an appropriate
+list of local IP addresses.
In the connecting case, the local address list can instead be
communicated in a <c>connected</c> message (see &MESSAGES; below)
following connection establishment.
In either case, the local address list is used to populate
<c>Host-IP-Address</c> AVPs in outgoing capabilities exchange
-messages.</p>
+messages if <c>Host-IP-Address</c> is unspecified.</p>
<p>
A transport process must implement the message interface documented below.
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl
index d9db630ec0..65645e4dff 100644
--- a/lib/diameter/src/base/diameter_peer_fsm.erl
+++ b/lib/diameter/src/base/diameter_peer_fsm.erl
@@ -233,20 +233,21 @@ start_transport(Addrs0, T) ->
{TPid, Addrs, Tmo, Data} ->
erlang:monitor(process, TPid),
q_next(TPid, Addrs0, Tmo, Data),
- {TPid, addrs(Addrs, Addrs0)};
+ {TPid, Addrs};
No ->
exit({shutdown, No})
end.
-addrs([], Addrs0) ->
- Addrs0;
-addrs(Addrs, _) ->
- Addrs.
-
-svc(Svc, []) ->
- Svc;
-svc(Svc, Addrs) ->
- readdr(Svc, Addrs).
+svc(#diameter_service{capabilities = LCaps0} = Svc, Addrs) ->
+ #diameter_caps{host_ip_address = Addrs0}
+ = LCaps0,
+ case Addrs0 of
+ [] ->
+ LCaps = LCaps0#diameter_caps{host_ip_address = Addrs},
+ Svc#diameter_service{capabilities = LCaps};
+ [_|_] ->
+ Svc
+ end.
readdr(#diameter_service{capabilities = LCaps0} = Svc, Addrs) ->
LCaps = LCaps0#diameter_caps{host_ip_address = Addrs},
@@ -360,7 +361,7 @@ transition({diameter, {TPid, connected, Remote, LAddrs}},
service = Svc}
= S) ->
transition({diameter, {TPid, connected, Remote}},
- S#state{service = readdr(Svc, LAddrs)});
+ S#state{service = svc(Svc, LAddrs)});
%% Connection from peer.
transition({diameter, {TPid, connected}},