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authorHans Nilsson <[email protected]>2015-10-30 12:25:16 +0100
committerHans Nilsson <[email protected]>2015-11-04 12:09:56 +0100
commit17517fb5ef4e9e7e6913a6eb4527f862ede29271 (patch)
tree511f7a6f23c5b83c238974bfb8df8321e1600639 /lib/ssh
parent193ccf4009eb346ca5dd43679b219e395016b03d (diff)
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ssh: make corrections of keyboard-interactive client
* Newlines should be added after Name and Instructions field according to rfc4256. * There was an error in the argument list of the last clause of ssh_auth:keyboard_interact_get_responses/9 * Correct client kb-interactive behaviour at auth failure
Diffstat (limited to 'lib/ssh')
-rw-r--r--lib/ssh/src/ssh_auth.erl11
-rw-r--r--lib/ssh/src/ssh_connection_handler.erl18
2 files changed, 22 insertions, 7 deletions
diff --git a/lib/ssh/src/ssh_auth.erl b/lib/ssh/src/ssh_auth.erl
index 4272eb3c52..4967a2e4cd 100644
--- a/lib/ssh/src/ssh_auth.erl
+++ b/lib/ssh/src/ssh_auth.erl
@@ -364,6 +364,11 @@ method_preference(Algs) ->
[{"publickey", ?MODULE, publickey_msg, [A]} | Acc]
end,
[{"password", ?MODULE, password_msg, []},
+ {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []},
+ {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []},
+ {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []},
+ {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []},
+ {"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []},
{"keyboard-interactive", ?MODULE, keyboard_interactive_msg, []}
],
Algs).
@@ -472,14 +477,14 @@ keyboard_interact_get_responses(false, undefined, undefined, _, _, _, [Prompt|_]
ssh_no_io:read_line(Prompt, Opts); %% Throws error as keyboard interaction is not allowed
keyboard_interact_get_responses(true, undefined, _,IoCb, Name, Instr, PromptInfos, Opts, _) ->
keyboard_interact(IoCb, Name, Instr, PromptInfos, Opts);
-keyboard_interact_get_responses(true, Fun, _, Name, Instr, PromptInfos, _, _, NumPrompts) ->
+keyboard_interact_get_responses(true, Fun, _Pwd, _IoCb, Name, Instr, PromptInfos, _Opts, NumPrompts) ->
keyboard_interact_fun(Fun, Name, Instr, PromptInfos, NumPrompts).
keyboard_interact(IoCb, Name, Instr, Prompts, Opts) ->
- if Name /= "" -> IoCb:format("~s", [Name]);
+ if Name /= "" -> IoCb:format("~s~n", [Name]);
true -> ok
end,
- if Instr /= "" -> IoCb:format("~s", [Instr]);
+ if Instr /= "" -> IoCb:format("~s~n", [Instr]);
true -> ok
end,
lists:map(fun({Prompt, true}) -> IoCb:read_line(Prompt, Opts);
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index 7fb86c1108..a2d1b5b810 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -627,14 +627,24 @@ userauth_keyboard_interactive(#ssh_msg_userauth_info_response{} = Msg,
retry_fun(User, Address, Reason, Opts),
send_msg(Reply, State),
{next_state, userauth, next_packet(State#state{ssh_params = Ssh})}
- end.
-
+ end;
+userauth_keyboard_interactive(Msg = #ssh_msg_userauth_failure{},
+ #state{ssh_params = Ssh0 =
+ #ssh{role = client,
+ userauth_preference = Prefs0}}
+ = State) ->
+ Prefs = [{Method,M,F,A} || {Method,M,F,A} <- Prefs0,
+ Method =/= "keyboard-interactive"],
+ userauth(Msg, State#state{ssh_params = Ssh0#ssh{userauth_preference=Prefs}}).
+
-userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_failure{}, State) ->
+userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_failure{},
+ #state{ssh_params = #ssh{role = client}} = State) ->
userauth(Msg, State);
-userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_success{}, State) ->
+userauth_keyboard_interactive_info_response(Msg=#ssh_msg_userauth_success{},
+ #state{ssh_params = #ssh{role = client}} = State) ->
userauth(Msg, State).
%%--------------------------------------------------------------------