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-rw-r--r--lib/ssh/src/ssh_acceptor_sup.erl5
-rw-r--r--lib/ssh/src/ssh_channel_sup.erl11
-rw-r--r--lib/ssh/src/ssh_connection.erl28
-rw-r--r--lib/ssh/src/ssh_connection_sup.erl5
-rw-r--r--lib/ssh/src/ssh_subsystem_sup.erl8
-rw-r--r--lib/ssh/src/ssh_sup.erl15
-rw-r--r--lib/ssh/src/ssh_system_sup.erl9
-rw-r--r--lib/ssh/src/sshc_sup.erl5
-rw-r--r--lib/ssh/src/sshd_sup.erl6
-rw-r--r--lib/ssh/test/ssh_options_SUITE.erl2
-rw-r--r--lib/ssh/test/ssh_sup_SUITE.erl96
11 files changed, 132 insertions, 58 deletions
diff --git a/lib/ssh/src/ssh_acceptor_sup.erl b/lib/ssh/src/ssh_acceptor_sup.erl
index a24664793b..fc564a359b 100644
--- a/lib/ssh/src/ssh_acceptor_sup.erl
+++ b/lib/ssh/src/ssh_acceptor_sup.erl
@@ -86,10 +86,7 @@ child_spec(Address, Port, Profile, Options) ->
Timeout = ?GET_INTERNAL_OPT(timeout, Options, ?DEFAULT_TIMEOUT),
#{id => id(Address, Port, Profile),
start => {ssh_acceptor, start_link, [Port, Address, Options, Timeout]},
- restart => transient,
- shutdown => 5500, %brutal_kill,
- type => worker,
- modules => [ssh_acceptor]
+ restart => transient % because a crashed listener could be replaced by a new one
}.
id(Address, Port, Profile) ->
diff --git a/lib/ssh/src/ssh_channel_sup.erl b/lib/ssh/src/ssh_channel_sup.erl
index 6b01dc334d..8444533fd1 100644
--- a/lib/ssh/src/ssh_channel_sup.erl
+++ b/lib/ssh/src/ssh_channel_sup.erl
@@ -26,7 +26,7 @@
-behaviour(supervisor).
--export([start_link/1, start_child/2]).
+-export([start_link/1, start_child/5]).
%% Supervisor callback
-export([init/1]).
@@ -37,7 +37,14 @@
start_link(Args) ->
supervisor:start_link(?MODULE, [Args]).
-start_child(Sup, ChildSpec) ->
+start_child(Sup, Callback, Id, Args, Exec) ->
+ ChildSpec =
+ #{id => make_ref(),
+ start => {ssh_channel, start_link, [self(), Id, Callback, Args, Exec]},
+ restart => temporary,
+ type => worker,
+ modules => [ssh_channel]
+ },
supervisor:start_child(Sup, ChildSpec).
%%%=========================================================================
diff --git a/lib/ssh/src/ssh_connection.erl b/lib/ssh/src/ssh_connection.erl
index 7e9ee78fd2..946ae2967b 100644
--- a/lib/ssh/src/ssh_connection.erl
+++ b/lib/ssh/src/ssh_connection.erl
@@ -812,22 +812,20 @@ start_channel(Cb, Id, Args, SubSysSup, Opts) ->
start_channel(Cb, Id, Args, SubSysSup, undefined, Opts).
start_channel(Cb, Id, Args, SubSysSup, Exec, Opts) ->
- ChildSpec = child_spec(Cb, Id, Args, Exec),
ChannelSup = ssh_subsystem_sup:channel_supervisor(SubSysSup),
- assert_limit_num_channels_not_exceeded(ChannelSup, Opts),
- ssh_channel_sup:start_child(ChannelSup, ChildSpec).
+ case max_num_channels_not_exceeded(ChannelSup, Opts) of
+ true ->
+ ssh_channel_sup:start_child(ChannelSup, Cb, Id, Args, Exec);
+ false ->
+ throw(max_num_channels_exceeded)
+ end.
-assert_limit_num_channels_not_exceeded(ChannelSup, Opts) ->
+max_num_channels_not_exceeded(ChannelSup, Opts) ->
MaxNumChannels = ?GET_OPT(max_channels, Opts),
NumChannels = length([x || {_,_,worker,[ssh_channel]} <-
supervisor:which_children(ChannelSup)]),
- if
- %% Note that NumChannels is BEFORE starting a new one
- NumChannels < MaxNumChannels ->
- ok;
- true ->
- throw(max_num_channels_exceeded)
- end.
+ %% Note that NumChannels is BEFORE starting a new one
+ NumChannels < MaxNumChannels.
%%--------------------------------------------------------------------
%%% Internal functions
@@ -874,14 +872,6 @@ check_subsystem(SsName, Options) ->
Value
end.
-child_spec(Callback, Id, Args, Exec) ->
- Name = make_ref(),
- StartFunc = {ssh_channel, start_link, [self(), Id, Callback, Args, Exec]},
- Restart = temporary,
- Shutdown = 3600,
- Type = worker,
- {Name, StartFunc, Restart, Shutdown, Type, [ssh_channel]}.
-
start_cli(#connection{cli_spec = no_cli}, _) ->
{error, cli_disabled};
start_cli(#connection{options = Options,
diff --git a/lib/ssh/src/ssh_connection_sup.erl b/lib/ssh/src/ssh_connection_sup.erl
index 60ee8b7c73..2e8450090a 100644
--- a/lib/ssh/src/ssh_connection_sup.erl
+++ b/lib/ssh/src/ssh_connection_sup.erl
@@ -52,10 +52,7 @@ init(_) ->
},
ChildSpecs = [#{id => undefined, % As simple_one_for_one is used.
start => {ssh_connection_handler, start_link, []},
- restart => temporary,
- shutdown => 4000,
- type => worker,
- modules => [ssh_connection_handler]
+ restart => temporary % because there is no way to restart a crashed connection
}
],
{ok, {SupFlags,ChildSpecs}}.
diff --git a/lib/ssh/src/ssh_subsystem_sup.erl b/lib/ssh/src/ssh_subsystem_sup.erl
index 8db051095c..77da240a66 100644
--- a/lib/ssh/src/ssh_subsystem_sup.erl
+++ b/lib/ssh/src/ssh_subsystem_sup.erl
@@ -74,18 +74,14 @@ ssh_connection_child_spec(Role, Address, Port, _Profile, Options) ->
#{id => id(Role, ssh_connection_sup, Address, Port),
start => {ssh_connection_sup, start_link, [Options]},
restart => temporary,
- shutdown => 5000,
- type => supervisor,
- modules => [ssh_connection_sup]
+ type => supervisor
}.
ssh_channel_child_spec(Role, Address, Port, _Profile, Options) ->
#{id => id(Role, ssh_channel_sup, Address, Port),
start => {ssh_channel_sup, start_link, [Options]},
restart => temporary,
- shutdown => infinity,
- type => supervisor,
- modules => [ssh_channel_sup]
+ type => supervisor
}.
id(Role, Sup, Address, Port) ->
diff --git a/lib/ssh/src/ssh_sup.erl b/lib/ssh/src/ssh_sup.erl
index eaec7a54e4..8183016ba5 100644
--- a/lib/ssh/src/ssh_sup.erl
+++ b/lib/ssh/src/ssh_sup.erl
@@ -36,15 +36,14 @@ init(_) ->
intensity => 10,
period => 3600
},
- ChildSpecs = [#{id => Module,
- start => {Module, start_link, []},
- restart => permanent,
- shutdown => 4000, %brutal_kill,
- type => supervisor,
- modules => [Module]
+ ChildSpecs = [#{id => sshd_sup,
+ start => {sshd_sup, start_link, []},
+ type => supervisor
+ },
+ #{id => sshc_sup,
+ start => {sshc_sup, start_link, []},
+ type => supervisor
}
- || Module <- [sshd_sup,
- sshc_sup]
],
{ok, {SupFlags,ChildSpecs}}.
diff --git a/lib/ssh/src/ssh_system_sup.erl b/lib/ssh/src/ssh_system_sup.erl
index e70abf59c2..17f990c5d8 100644
--- a/lib/ssh/src/ssh_system_sup.erl
+++ b/lib/ssh/src/ssh_system_sup.erl
@@ -63,9 +63,7 @@ init([Address, Port, Profile, Options]) ->
[#{id => id(ssh_acceptor_sup, Address, Port, Profile),
start => {ssh_acceptor_sup, start_link, [Address, Port, Profile, Options]},
restart => transient,
- shutdown => infinity,
- type => supervisor,
- modules => [ssh_acceptor_sup]
+ type => supervisor
}];
_ ->
[]
@@ -124,9 +122,8 @@ start_subsystem(SystemSup, Role, Address, Port, Profile, Options) ->
#{id => make_ref(),
start => {ssh_subsystem_sup, start_link, [Role, Address, Port, Profile, Options]},
restart => temporary,
- shutdown => infinity,
- type => supervisor,
- modules => [ssh_subsystem_sup]},
+ type => supervisor
+ },
supervisor:start_child(SystemSup, SubsystemSpec).
stop_subsystem(SystemSup, SubSys) ->
diff --git a/lib/ssh/src/sshc_sup.erl b/lib/ssh/src/sshc_sup.erl
index 133b2c6450..fd4d8a3c07 100644
--- a/lib/ssh/src/sshc_sup.erl
+++ b/lib/ssh/src/sshc_sup.erl
@@ -60,10 +60,7 @@ init(_) ->
},
ChildSpecs = [#{id => undefined, % As simple_one_for_one is used.
start => {ssh_connection_handler, start_link, []},
- restart => temporary,
- shutdown => 4000,
- type => worker,
- modules => [ssh_connection_handler]
+ restart => temporary % because there is no way to restart a crashed connection
}
],
{ok, {SupFlags,ChildSpecs}}.
diff --git a/lib/ssh/src/sshd_sup.erl b/lib/ssh/src/sshd_sup.erl
index c23e65d955..779a861a54 100644
--- a/lib/ssh/src/sshd_sup.erl
+++ b/lib/ssh/src/sshd_sup.erl
@@ -90,10 +90,8 @@ init(_) ->
child_spec(Address, Port, Profile, Options) ->
#{id => id(Address, Port, Profile),
start => {ssh_system_sup, start_link, [Address, Port, Profile, Options]},
- restart => temporary,
- shutdown => infinity,
- type => supervisor,
- modules => [ssh_system_sup]
+ restart => temporary,
+ type => supervisor
}.
id(Address, Port, Profile) ->
diff --git a/lib/ssh/test/ssh_options_SUITE.erl b/lib/ssh/test/ssh_options_SUITE.erl
index 144ec7f8fd..e1357c3a18 100644
--- a/lib/ssh/test/ssh_options_SUITE.erl
+++ b/lib/ssh/test/ssh_options_SUITE.erl
@@ -219,7 +219,9 @@ end_per_testcase(_TestCase, Config) ->
end_per_testcase(Config).
end_per_testcase(_Config) ->
+ ct:log("~p: Before ssh:stop()",[?FUNCTION_NAME]),
ssh:stop(),
+ ct:log("~p: After ssh:stop()",[?FUNCTION_NAME]),
ok.
%%--------------------------------------------------------------------
diff --git a/lib/ssh/test/ssh_sup_SUITE.erl b/lib/ssh/test/ssh_sup_SUITE.erl
index 3920a1c592..d453a2e143 100644
--- a/lib/ssh/test/ssh_sup_SUITE.erl
+++ b/lib/ssh/test/ssh_sup_SUITE.erl
@@ -42,7 +42,9 @@ suite() ->
all() ->
[default_tree, sshc_subtree, sshd_subtree, sshd_subtree_profile,
- killed_acceptor_restarts].
+ killed_acceptor_restarts,
+ shell_channel_tree
+ ].
groups() ->
[].
@@ -246,6 +248,98 @@ killed_acceptor_restarts(Config) ->
{error,closed} = ssh:connection_info(C2,[client_version]).
%%-------------------------------------------------------------------------
+shell_channel_tree(Config) ->
+ PrivDir = proplists:get_value(priv_dir, Config),
+ UserDir = filename:join(PrivDir, nopubkey), % to make sure we don't use public-key-auth
+ file:make_dir(UserDir),
+ SysDir = proplists:get_value(data_dir, Config),
+ TimeoutShell =
+ fun() ->
+ io:format("TimeoutShell started!~n",[]),
+ timer:sleep(5000),
+ ct:pal("~p TIMEOUT!",[self()])
+ end,
+ {Daemon, Host, Port} = ssh_test_lib:daemon([{system_dir, SysDir},
+ {user_dir, UserDir},
+ {password, "morot"},
+ {shell, fun(_User) ->
+ spawn(TimeoutShell)
+ end
+ }
+ ]),
+ ConnectionRef = ssh_test_lib:connect(Host, Port, [{silently_accept_hosts, true},
+ {user, "foo"},
+ {password, "morot"},
+ {user_interaction, true},
+ {user_dir, UserDir}]),
+
+ [ChannelSup|_] = Sups0 = chk_empty_con_daemon(Daemon),
+
+ {ok, ChannelId0} = ssh_connection:session_channel(ConnectionRef, infinity),
+ ok = ssh_connection:shell(ConnectionRef,ChannelId0),
+
+ ?wait_match([{_, GroupPid,worker,[ssh_channel]}],
+ supervisor:which_children(ChannelSup),
+ [GroupPid]),
+ {links,GroupLinks} = erlang:process_info(GroupPid, links),
+ [ShellPid] = GroupLinks--[ChannelSup],
+ ct:pal("GroupPid = ~p, ShellPid = ~p",[GroupPid,ShellPid]),
+
+ receive
+ {ssh_cm,ConnectionRef, {data, ChannelId0, 0, <<"TimeoutShell started!\r\n">>}} ->
+ receive
+ %%---- wait for the subsystem to terminate
+ {ssh_cm,ConnectionRef,{closed,ChannelId0}} ->
+ ct:pal("Subsystem terminated",[]),
+ case {chk_empty_con_daemon(Daemon),
+ process_info(GroupPid),
+ process_info(ShellPid)} of
+ {Sups0, undefined, undefined} ->
+ %% SUCCESS
+ ssh:stop_daemon(Daemon);
+ {Sups0, _, undefined} ->
+ ssh:stop_daemon(Daemon),
+ ct:fail("Group proc lives!");
+ {Sups0, undefined, _} ->
+ ssh:stop_daemon(Daemon),
+ ct:fail("Shell proc lives!");
+ _ ->
+ ssh:stop_daemon(Daemon),
+ ct:fail("Sup tree changed!")
+ end
+ after 10000 ->
+ ssh:close(ConnectionRef),
+ ssh:stop_daemon(Daemon),
+ ct:fail("CLI Timeout")
+ end
+ after 10000 ->
+ ssh:close(ConnectionRef),
+ ssh:stop_daemon(Daemon),
+ ct:fail("CLI Timeout")
+ end.
+
+
+chk_empty_con_daemon(Daemon) ->
+ ?wait_match([{_,SubSysSup, supervisor,[ssh_subsystem_sup]},
+ {{ssh_acceptor_sup,_,_,_}, AccSup, supervisor,[ssh_acceptor_sup]}],
+ supervisor:which_children(Daemon),
+ [SubSysSup,AccSup]),
+ ?wait_match([{{server,ssh_connection_sup, _,_},
+ ConnectionSup, supervisor,
+ [ssh_connection_sup]},
+ {{server,ssh_channel_sup,_ ,_},
+ ChannelSup,supervisor,
+ [ssh_channel_sup]}],
+ supervisor:which_children(SubSysSup),
+ [ConnectionSup,ChannelSup]),
+ ?wait_match([{{ssh_acceptor_sup,_,_,_},_,worker,[ssh_acceptor]}],
+ supervisor:which_children(AccSup)),
+ ?wait_match([{_, _, worker,[ssh_connection_handler]}],
+ supervisor:which_children(ConnectionSup)),
+ ?wait_match([], supervisor:which_children(ChannelSup)),
+ [ChannelSup, ConnectionSup, SubSysSup, AccSup].
+
+%%-------------------------------------------------------------------------
%% Help functions
%%-------------------------------------------------------------------------
check_sshd_system_tree(Daemon, Config) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 17:29:01 +0000