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authorHans Nilsson <[email protected]>2018-05-14 12:27:59 +0200
committerHans Nilsson <[email protected]>2018-05-14 12:27:59 +0200
commit6454f3b15bd1c260017c250915d45ba77ee86c4f (patch)
tree9df5246535aa31228db20f396f626b0b9413841f /lib
parentf97a29930f6a192d06c053ebd88d4abe7e45beb8 (diff)
parentc9f0a6ed11d42d461aeb4f29e4b3c900df3fed98 (diff)
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Merge branch 'hans/ssh/rekey_limit/OTP-15069'
* hans/ssh/rekey_limit/OTP-15069: ssh: Test the infinity rekey_limit option ssh: Add infinity as values to rekey_limit
Diffstat (limited to 'lib')
-rw-r--r--lib/ssh/doc/src/ssh.xml6
-rw-r--r--lib/ssh/src/ssh.hrl7
-rw-r--r--lib/ssh/src/ssh_options.erl21
-rw-r--r--lib/ssh/test/ssh_basic_SUITE.erl48
4 files changed, 54 insertions, 28 deletions
diff --git a/lib/ssh/doc/src/ssh.xml b/lib/ssh/doc/src/ssh.xml
index 6aed525e8b..407956cc6f 100644
--- a/lib/ssh/doc/src/ssh.xml
+++ b/lib/ssh/doc/src/ssh.xml
@@ -762,6 +762,8 @@
<datatype>
<name name="rekey_limit_common_option"/>
+ <name name="limit_bytes"/>
+ <name name="limit_time"/>
<desc>
<p>Sets the limit when rekeying is to be initiated. Both the max time and max amount of data
could be configured:
@@ -773,6 +775,10 @@
</list>
<p>When a rekeying is done, both the timer and the byte counter are restarted.
Defaults to one hour and one GByte.</p>
+ <p>If <c>Minutes</c> is set to <c>infinity</c>, no rekeying will ever occur due to that max time has passed.
+ Setting <c>Bytes</c> to <c>infinity</c> will inhibit rekeying after a certain amount of data has been transferred.
+ If the option value is set to <c>{infinity, infinity}</c>, no rekeying will be initiated. Note that rekeying initiated
+ by the peer will still be performed.</p>
</desc>
</datatype>
diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl
index fc0a3786ac..2efd239aae 100644
--- a/lib/ssh/src/ssh.hrl
+++ b/lib/ssh/src/ssh.hrl
@@ -191,10 +191,13 @@
-type user_dir_common_option() :: {user_dir, false | string()}.
-type profile_common_option() :: {profile, atom() }.
-type max_idle_time_common_option() :: {idle_time, timeout()}.
--type rekey_limit_common_option() :: {rekey_limit, Bytes::non_neg_integer() |
- {Minutes::non_neg_integer(), Bytes::non_neg_integer()}
+-type rekey_limit_common_option() :: {rekey_limit, Bytes::limit_bytes() |
+ {Minutes::limit_time(), Bytes::limit_bytes()}
}.
+-type limit_bytes() :: non_neg_integer() | infinity . % non_neg_integer due to compatibility
+-type limit_time() :: pos_integer() | infinity .
+
-type key_cb_common_option() :: {key_cb, Module::atom() | {Module::atom(),Opts::[term()]} } .
-type disconnectfun_common_option() ::
{disconnectfun, fun((Reason::term()) -> void | any()) }.
diff --git a/lib/ssh/src/ssh_options.erl b/lib/ssh/src/ssh_options.erl
index 73287e464a..fe95d2ac54 100644
--- a/lib/ssh/src/ssh_options.erl
+++ b/lib/ssh/src/ssh_options.erl
@@ -601,14 +601,19 @@ default(common) ->
{rekey_limit, def} =>
#{default => {3600000, 1024000000}, % {1 hour, 1 GB}
- chk => fun({TimeMins, SizBytes}) when is_integer(TimeMins) andalso TimeMins>=0,
- is_integer(SizBytes) andalso SizBytes>=0 ->
- %% New (>= 21) format
- {true, {TimeMins * 60*1000, % To ms
- SizBytes}};
- (SizBytes) when is_integer(SizBytes) andalso SizBytes>=0 ->
- %% Old (< 21) format
- {true, {3600000, SizBytes}};
+ chk => fun({infinity, infinity}) ->
+ true;
+ ({Mins, infinity}) when is_integer(Mins), Mins>0 ->
+ {true, {Mins*60*1000, infinity}};
+ ({infinity, Bytes}) when is_integer(Bytes), Bytes>=0 ->
+ true;
+ ({Mins, Bytes}) when is_integer(Mins), Mins>0,
+ is_integer(Bytes), Bytes>=0 ->
+ {true, {Mins*60*1000, Bytes}};
+ (infinity) ->
+ {true, {3600000, infinity}};
+ (Bytes) when is_integer(Bytes), Bytes>=0 ->
+ {true, {3600000, Bytes}};
(_) ->
false
end,
diff --git a/lib/ssh/test/ssh_basic_SUITE.erl b/lib/ssh/test/ssh_basic_SUITE.erl
index 603ac71d4b..715dcaf3c0 100644
--- a/lib/ssh/test/ssh_basic_SUITE.erl
+++ b/lib/ssh/test/ssh_basic_SUITE.erl
@@ -76,7 +76,11 @@ groups() ->
shell_exit_status
]},
- {ssh_renegotiate_SUITE, [parallel], [rekey,
+ {ssh_renegotiate_SUITE, [parallel], [rekey0,
+ rekey1,
+ rekey2,
+ rekey3,
+ rekey4,
rekey_limit_client,
rekey_limit_daemon,
rekey_time_limit_client,
@@ -1330,28 +1334,36 @@ shell_exit_status(Config) when is_list(Config) ->
ssh:stop_daemon(Pid).
+%%----------------------------------------------------------------------------
%%% Idle timeout test
-rekey() -> [{timetrap,{seconds,90}}].
+rekey0() -> [{timetrap,{seconds,90}}].
+rekey1() -> [{timetrap,{seconds,90}}].
+rekey2() -> [{timetrap,{seconds,90}}].
+rekey3() -> [{timetrap,{seconds,90}}].
+rekey4() -> [{timetrap,{seconds,90}}].
-rekey(Config) ->
- {Pid, Host, Port} =
- ssh_test_lib:std_daemon(Config,
- [{rekey_limit, 0}]),
- ConnectionRef =
- ssh_test_lib:std_connect(Config, Host, Port,
- [{rekey_limit, 0}]),
+rekey0(Config) -> rekey_chk(Config, 0, 0).
+rekey1(Config) -> rekey_chk(Config, infinity, 0).
+rekey2(Config) -> rekey_chk(Config, {infinity,infinity}, 0).
+rekey3(Config) -> rekey_chk(Config, 0, infinity).
+rekey4(Config) -> rekey_chk(Config, 0, {infinity,infinity}).
+
+rekey_chk(Config, RLdaemon, RLclient) ->
+ {Pid, Host, Port} = ssh_test_lib:std_daemon(Config, [{rekey_limit, RLdaemon}]),
+ ConnectionRef = ssh_test_lib:std_connect(Config, Host, Port, [{rekey_limit, RLclient}]),
Kex1 = ssh_test_lib:get_kex_init(ConnectionRef),
- receive
- after ?REKEY_DATA_TMO ->
- %%By this time rekeying would have been done
- Kex2 = ssh_test_lib:get_kex_init(ConnectionRef),
- false = (Kex2 == Kex1),
- ssh:close(ConnectionRef),
- ssh:stop_daemon(Pid)
- end.
-%%--------------------------------------------------------------------
+ %% Make both sides send something:
+ {ok, SftpPid} = ssh_sftp:start_channel(ConnectionRef),
+
+ %% Check rekeying
+ timer:sleep(?REKEY_DATA_TMO),
+ ?wait_match(false, Kex1==ssh_test_lib:get_kex_init(ConnectionRef), [], 2000, 10),
+ ssh:close(ConnectionRef),
+ ssh:stop_daemon(Pid).
+
+%%--------------------------------------------------------------------
%%% Test rekeying by data volume
rekey_limit_client() -> [{timetrap,{seconds,400}}].