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-rw-r--r--lib/ssl/src/ssl_handshake.erl13
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index 2dfa1741c5..f873a6a913 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -39,6 +39,8 @@
encode_handshake/2, init_hashes/0, update_hashes/2,
decrypt_premaster_secret/2]).
+-export([dec_hello_extensions/2]).
+
-type tls_handshake() :: #client_hello{} | #server_hello{} |
#server_hello_done{} | #certificate{} | #certificate_request{} |
#client_key_exchange{} | #finished{} | #certificate_verify{} |
@@ -48,7 +50,7 @@
%% Internal application API
%%====================================================================
%%--------------------------------------------------------------------
--spec client_hello(host(), inet:port_num(), #connection_states{},
+-spec client_hello(host(), inet:port_number(), #connection_states{},
#ssl_options{}, boolean(), der_cert()) -> #client_hello{}.
%%
%% Description: Creates a client hello message.
@@ -106,7 +108,7 @@ hello_request() ->
%%--------------------------------------------------------------------
-spec hello(#server_hello{} | #client_hello{}, #ssl_options{},
- #connection_states{} | {inet:port_num(), #session{}, db_handle(),
+ #connection_states{} | {inet:port_number(), #session{}, db_handle(),
atom(), #connection_states{}, binary()},
boolean()) -> {tls_version(), session_id(), #connection_states{}}|
{tls_version(), {resumed | new, #session{}},
@@ -912,9 +914,12 @@ dec_hello_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info:Len/binar
end,
dec_hello_extensions(Rest, [{renegotiation_info,
#renegotiation_info{renegotiated_connection = RenegotiateInfo}} | Acc]);
-dec_hello_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len, Rest/binary>>, Acc) ->
+
+%% Ignore data following the ClientHello (i.e.,
+%% extensions) if not understood.
+dec_hello_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len/binary, Rest/binary>>, Acc) ->
dec_hello_extensions(Rest, Acc);
-%% Need this clause?
+%% This theoretically should not happen if the protocol is followed, but if it does it is ignored.
dec_hello_extensions(_, Acc) ->
Acc.