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-rw-r--r--lib/ssh/src/ssh.erl10
-rw-r--r--lib/ssh/src/ssh_connection.erl18
-rw-r--r--lib/ssh/src/ssh_connection_handler.erl19
-rw-r--r--lib/ssh/src/ssh_sftp.erl13
-rw-r--r--lib/ssh/src/ssh_transport.erl84
5 files changed, 106 insertions, 38 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 51ad691ba2..71e7d77475 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -312,6 +312,8 @@ handle_option([{disconnectfun, _} = Opt | Rest], SocketOptions, SshOptions) ->
handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
handle_option([{failfun, _} = Opt | Rest], SocketOptions, SshOptions) ->
handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
+handle_option([{ssh_msg_debug_fun, _} = Opt | Rest], SocketOptions, SshOptions) ->
+ handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
%%Backwards compatibility should not be underscore between ip and v6 in API
handle_option([{ip_v6_disabled, Value} | Rest], SocketOptions, SshOptions) ->
handle_option(Rest, SocketOptions, [handle_ssh_option({ipv6_disabled, Value}) | SshOptions]);
@@ -347,6 +349,8 @@ handle_option([parallel_login|Rest], SocketOptions, SshOptions) ->
handle_option(Rest, SocketOptions, [handle_ssh_option({parallel_login,true}) | SshOptions]);
handle_option([{minimal_remote_max_packet_size, _} = Opt|Rest], SocketOptions, SshOptions) ->
handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
+handle_option([{id_string, _ID} = Opt|Rest], SocketOptions, SshOptions) ->
+ handle_option(Rest, SocketOptions, [handle_ssh_option(Opt) | SshOptions]);
handle_option([Opt | Rest], SocketOptions, SshOptions) ->
handle_option(Rest, [handle_inet_option(Opt) | SocketOptions], SshOptions).
@@ -415,6 +419,8 @@ handle_ssh_option({disconnectfun , Value} = Opt) when is_function(Value) ->
Opt;
handle_ssh_option({failfun, Value} = Opt) when is_function(Value) ->
Opt;
+handle_ssh_option({ssh_msg_debug_fun, Value} = Opt) when is_function(Value,4) ->
+ Opt;
handle_ssh_option({ipv6_disabled, Value} = Opt) when is_boolean(Value) ->
throw({error, {{ipv6_disabled, Opt}, option_no_longer_valid_use_inet_option_instead}});
@@ -439,6 +445,10 @@ handle_ssh_option({idle_time, Value} = Opt) when is_integer(Value), Value > 0 ->
Opt;
handle_ssh_option({rekey_limit, Value} = Opt) when is_integer(Value) ->
Opt;
+handle_ssh_option({id_string, random}) ->
+ {id_string, {random,2,5}}; %% 2 - 5 random characters
+handle_ssh_option({id_string, ID} = Opt) when is_list(ID) ->
+ Opt;
handle_ssh_option(Opt) ->
throw({error, {eoptions, Opt}}).
diff --git a/lib/ssh/src/ssh_connection.erl b/lib/ssh/src/ssh_connection.erl
index 388c080d99..d532d41009 100644
--- a/lib/ssh/src/ssh_connection.erl
+++ b/lib/ssh/src/ssh_connection.erl
@@ -196,15 +196,16 @@ reply_request(_,false, _, _) ->
%%--------------------------------------------------------------------
ptty_alloc(ConnectionHandler, Channel, Options) ->
ptty_alloc(ConnectionHandler, Channel, Options, infinity).
-ptty_alloc(ConnectionHandler, Channel, Options, TimeOut) ->
+ptty_alloc(ConnectionHandler, Channel, Options0, TimeOut) ->
+ Options = backwards_compatible(Options0, []),
{Width, PixWidth} = pty_default_dimensions(width, Options),
- {Hight, PixHight} = pty_default_dimensions(hight, Options),
+ {Height, PixHeight} = pty_default_dimensions(height, Options),
pty_req(ConnectionHandler, Channel,
proplists:get_value(term, Options, os:getenv("TERM", ?DEFAULT_TERMINAL)),
proplists:get_value(width, Options, Width),
- proplists:get_value(hight, Options, Hight),
+ proplists:get_value(height, Options, Height),
proplists:get_value(pixel_widh, Options, PixWidth),
- proplists:get_value(pixel_hight, Options, PixHight),
+ proplists:get_value(pixel_height, Options, PixHeight),
proplists:get_value(pty_opts, Options, []), TimeOut
).
%%--------------------------------------------------------------------
@@ -1339,3 +1340,12 @@ decode_ip(Addr) when is_binary(Addr) ->
{error,_} -> Addr;
{ok,A} -> A
end.
+
+backwards_compatible([], Acc) ->
+ Acc;
+backwards_compatible([{hight, Value} | Rest], Acc) ->
+ backwards_compatible(Rest, [{height, Value} | Acc]);
+backwards_compatible([{pixel_hight, Value} | Rest], Acc) ->
+ backwards_compatible(Rest, [{height, Value} | Acc]);
+backwards_compatible([Value| Rest], Acc) ->
+ backwards_compatible(Rest, [ Value | Acc]).
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index e1f2e059e8..2c7f132916 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -70,6 +70,7 @@
undecoded_packet_length, % integer()
key_exchange_init_msg, % #ssh_msg_kexinit{}
renegotiate = false, % boolean()
+ last_size_rekey = 0,
connection_queue,
address,
port,
@@ -580,12 +581,12 @@ handle_event(#ssh_msg_disconnect{description = Desc} = DisconnectMsg, _StateName
handle_event(#ssh_msg_ignore{}, StateName, State) ->
{next_state, StateName, next_packet(State)};
-handle_event(#ssh_msg_debug{always_display = true, message = DbgMsg},
- StateName, State) ->
- io:format("DEBUG: ~p\n", [DbgMsg]),
- {next_state, StateName, next_packet(State)};
-
-handle_event(#ssh_msg_debug{}, StateName, State) ->
+handle_event(#ssh_msg_debug{always_display = Display, message = DbgMsg, language=Lang},
+ StateName, #state{opts = Opts} = State) ->
+ F = proplists:get_value(ssh_msg_debug_fun, Opts,
+ fun(_ConnRef, _AlwaysDisplay, _Msg, _Language) -> ok end
+ ),
+ catch F(self(), Display, DbgMsg, Lang),
{next_state, StateName, next_packet(State)};
handle_event(#ssh_msg_unimplemented{}, StateName, State) ->
@@ -635,7 +636,8 @@ handle_event(renegotiate, StateName, State) ->
%% Rekey due to sent data limit reached?
handle_event(data_size, connected, #state{ssh_params = Ssh0} = State) ->
- {ok, [{send_oct,Sent}]} = inet:getstat(State#state.socket, [send_oct]),
+ {ok, [{send_oct,Sent0}]} = inet:getstat(State#state.socket, [send_oct]),
+ Sent = Sent0 - State#state.last_size_rekey,
MaxSent = proplists:get_value(rekey_limit, State#state.opts, 1024000000),
timer:apply_after(?REKEY_DATA_TIMOUT, gen_fsm, send_all_state_event, [self(), data_size]),
case Sent >= MaxSent of
@@ -645,7 +647,8 @@ handle_event(data_size, connected, #state{ssh_params = Ssh0} = State) ->
{next_state, kexinit,
next_packet(State#state{ssh_params = Ssh,
key_exchange_init_msg = KeyInitMsg,
- renegotiate = true})};
+ renegotiate = true,
+ last_size_rekey = Sent0})};
_ ->
{next_state, connected, next_packet(State)}
end;
diff --git a/lib/ssh/src/ssh_sftp.erl b/lib/ssh/src/ssh_sftp.erl
index c264eabc78..bab688f226 100644
--- a/lib/ssh/src/ssh_sftp.erl
+++ b/lib/ssh/src/ssh_sftp.erl
@@ -508,12 +508,12 @@ init([Cm, ChannelId, Options]) ->
%%--------------------------------------------------------------------
handle_call({{timeout, infinity}, wait_for_version_negotiation}, From,
#state{xf = #ssh_xfer{vsn = undefined} = Xf} = State) ->
- {noreply, State#state{xf = Xf#ssh_xfer{vsn = From}}};
+ {noreply, State#state{xf = Xf#ssh_xfer{vsn = {wait, From, undefined}}}};
handle_call({{timeout, Timeout}, wait_for_version_negotiation}, From,
#state{xf = #ssh_xfer{vsn = undefined} = Xf} = State) ->
- timer:send_after(Timeout, {timeout, undefined, From}),
- {noreply, State#state{xf = Xf#ssh_xfer{vsn = From}}};
+ TRef = erlang:send_after(Timeout, self(), {timeout, undefined, From}),
+ {noreply, State#state{xf = Xf#ssh_xfer{vsn = {wait, From, TRef}}}};
handle_call({_, wait_for_version_negotiation}, _, State) ->
{reply, ok, State};
@@ -865,7 +865,12 @@ do_handle_reply(#state{xf = Xf} = State,
case Xf#ssh_xfer.vsn of
undefined ->
ok;
- From ->
+ {wait, From, TRef} ->
+ if is_reference(TRef) ->
+ erlang:cancel_timer(TRef);
+ true ->
+ ok
+ end,
ssh_channel:reply(From, ok)
end,
State#state{xf = Xf#ssh_xfer{vsn = Version, ext = Ext}, rep_buf = Rest};
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 76fa776113..d6414bab6c 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -44,12 +44,34 @@
versions(client, Options)->
Vsn = proplists:get_value(vsn, Options, ?DEFAULT_CLIENT_VERSION),
- Version = format_version(Vsn),
- {Vsn, Version};
+ {Vsn, format_version(Vsn, software_version(Options))};
versions(server, Options) ->
Vsn = proplists:get_value(vsn, Options, ?DEFAULT_SERVER_VERSION),
- Version = format_version(Vsn),
- {Vsn, Version}.
+ {Vsn, format_version(Vsn, software_version(Options))}.
+
+software_version(Options) ->
+ case proplists:get_value(id_string, Options) of
+ undefined ->
+ "Erlang"++ssh_vsn();
+ {random,Nlo,Nup} ->
+ random_id(Nlo,Nup);
+ ID ->
+ ID
+ end.
+
+ssh_vsn() ->
+ try {ok,L} = application:get_all_key(ssh),
+ proplists:get_value(vsn,L,"")
+ of
+ "" -> "";
+ VSN when is_list(VSN) -> "/" ++ VSN;
+ _ -> ""
+ catch
+ _:_ -> ""
+ end.
+
+random_id(Nlo, Nup) ->
+ [crypto:rand_uniform($a,$z+1) || _<- lists:duplicate(crypto:rand_uniform(Nlo,Nup+1),x) ].
hello_version_msg(Data) ->
[Data,"\r\n"].
@@ -77,9 +99,9 @@ is_valid_mac(Mac, Data, #ssh{recv_mac = Algorithm,
yes_no(Ssh, Prompt) ->
(Ssh#ssh.io_cb):yes_no(Prompt, Ssh).
-format_version({Major,Minor}) ->
+format_version({Major,Minor}, SoftwareVersion) ->
"SSH-" ++ integer_to_list(Major) ++ "." ++
- integer_to_list(Minor) ++ "-Erlang".
+ integer_to_list(Minor) ++ "-" ++ SoftwareVersion.
handle_hello_version(Version) ->
try
@@ -218,20 +240,30 @@ key_exchange_first_msg('diffie-hellman-group-exchange-sha1', Ssh0) ->
handle_kexdh_init(#ssh_msg_kexdh_init{e = E}, Ssh0) ->
{G, P} = dh_group1(),
- {Private, Public} = dh_gen_key(G, P, 1024),
- K = ssh_math:ipow(E, Private, P),
- Key = get_host_key(Ssh0),
- H = kex_h(Ssh0, Key, E, Public, K),
- H_SIG = sign_host_key(Ssh0, Key, H),
- {SshPacket, Ssh1} = ssh_packet(#ssh_msg_kexdh_reply{public_host_key = Key,
- f = Public,
- h_sig = H_SIG
- }, Ssh0),
-
- {ok, SshPacket, Ssh1#ssh{keyex_key = {{Private, Public}, {G, P}},
- shared_secret = K,
- exchanged_hash = H,
- session_id = sid(Ssh1, H)}}.
+ if
+ 1=<E, E=<(P-1) ->
+ {Private, Public} = dh_gen_key(G, P, 1024),
+ K = ssh_math:ipow(E, Private, P),
+ Key = get_host_key(Ssh0),
+ H = kex_h(Ssh0, Key, E, Public, K),
+ H_SIG = sign_host_key(Ssh0, Key, H),
+ {SshPacket, Ssh1} = ssh_packet(#ssh_msg_kexdh_reply{public_host_key = Key,
+ f = Public,
+ h_sig = H_SIG
+ }, Ssh0),
+
+ {ok, SshPacket, Ssh1#ssh{keyex_key = {{Private, Public}, {G, P}},
+ shared_secret = K,
+ exchanged_hash = H,
+ session_id = sid(Ssh1, H)}};
+ true ->
+ Error = {error,bad_e_from_peer},
+ Disconnect = #ssh_msg_disconnect{
+ code = ?SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
+ description = "Key exchange failed, 'f' out of bounds",
+ language = "en"},
+ throw({Error, Disconnect})
+ end.
handle_kex_dh_gex_group(#ssh_msg_kex_dh_gex_group{p = P, g = G}, Ssh0) ->
{Private, Public} = dh_gen_key(G,P,1024),
@@ -255,7 +287,7 @@ handle_new_keys(#ssh_msg_newkeys{}, Ssh0) ->
%% %% Select algorithms
handle_kexdh_reply(#ssh_msg_kexdh_reply{public_host_key = HostKey, f = F,
h_sig = H_SIG},
- #ssh{keyex_key = {{Private, Public}, {_G, P}}} = Ssh0) ->
+ #ssh{keyex_key = {{Private, Public}, {_G, P}}} = Ssh0) when 1=<F, F=<(P-1)->
K = ssh_math:ipow(F, Private, P),
H = kex_h(Ssh0, HostKey, Public, F, K),
@@ -271,7 +303,15 @@ handle_kexdh_reply(#ssh_msg_kexdh_reply{public_host_key = HostKey, f = F,
description = "Key exchange failed",
language = "en"},
throw({Error, Disconnect})
- end.
+ end;
+handle_kexdh_reply(#ssh_msg_kexdh_reply{}, _SSH) ->
+ Error = {error,bad_f_from_peer},
+ Disconnect = #ssh_msg_disconnect{
+ code = ?SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
+ description = "Key exchange failed, 'f' out of bounds",
+ language = "en"},
+ throw({Error, Disconnect}).
+
handle_kex_dh_gex_request(#ssh_msg_kex_dh_gex_request{min = _Min,
n = _NBits,
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-11 23:41:02 +0000