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-rw-r--r--lib/snmp/src/manager/snmpm.erl27
-rw-r--r--lib/snmp/src/manager/snmpm_server.erl184
-rw-r--r--lib/snmp/src/manager/snmpm_user.erl173
3 files changed, 259 insertions, 125 deletions
diff --git a/lib/snmp/src/manager/snmpm.erl b/lib/snmp/src/manager/snmpm.erl
index 6ac0115dad..8bfca76a1c 100644
--- a/lib/snmp/src/manager/snmpm.erl
+++ b/lib/snmp/src/manager/snmpm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -111,6 +111,12 @@
-export([start_link/3, snmpm_start_verify/2, snmpm_start_verify/3]).
-export([target_name/1, target_name/2]).
+-export_type([
+ register_timeout/0,
+ agent_config/0,
+ target_name/0
+ ]).
+
-include_lib("snmp/src/misc/snmp_debug.hrl").
-include_lib("snmp/include/snmp_types.hrl").
@@ -121,6 +127,25 @@
-define(DEFAULT_AGENT_PORT, 161).
+%%-----------------------------------------------------------------
+%% Types
+%%-----------------------------------------------------------------
+
+-type register_timeout() :: pos_integer() | snmp:snmp_timer().
+-type agent_config() :: {engine_id, snmp:engine_id()} | % Mandatory
+ {address, inet:ip_address()} | % Mandatory
+ {port, inet:port_number()} | % Optional
+ {tdomain, snmp:tdomain()} | % Optional
+ {community, snmp:community()} | % Optional
+ {timeout, register_timeout()} | % Optional
+ {max_message_size, snmp:mms()} | % Optional
+ {version, snmp:version()} | % Optional
+ {sec_moduel, snmp:sec_model()} | % Optional
+ {sec_name, snmp:sec_name()} | % Optional
+ {sec_level, snmp:sec_level()}. % Optional
+-type target_name() :: string().
+
+
%% This function is called when the snmp application
%% starts.
start_link(Opts, normal, []) ->
diff --git a/lib/snmp/src/manager/snmpm_server.erl b/lib/snmp/src/manager/snmpm_server.erl
index 61d22362cc..9c79df2748 100644
--- a/lib/snmp/src/manager/snmpm_server.erl
+++ b/lib/snmp/src/manager/snmpm_server.erl
@@ -488,7 +488,7 @@ cancel_async_request(UserId, ReqId) ->
%% discovery(UserId, BAddr, Port, Config, Expire, ExtraInfo) ->
%% call({discovery, self(), UserId, BAddr, Port, Config, Expire, ExtraInfo}).
-
+
verbosity(Verbosity) ->
case ?vvalidate(Verbosity) of
Verbosity ->
@@ -1851,7 +1851,17 @@ handle_snmp_error(Addr, Port, ReqId, Reason, State) ->
handle_error(_UserId, Mod, Reason, ReqId, Data, _State) ->
?vtrace("handle_error -> entry when"
"~n Mod: ~p", [Mod]),
- F = fun() -> (catch Mod:handle_error(ReqId, Reason, Data)) end,
+ F = fun() ->
+ try
+ begin
+ Mod:handle_error(ReqId, Reason, Data)
+ end
+ catch
+ T:E ->
+ CallbackArgs = [ReqId, Reason, Data],
+ handle_invalid_result(handle_error, CallbackArgs, T, E)
+ end
+ end,
handle_callback(F),
ok.
@@ -2031,7 +2041,15 @@ handle_pdu(_UserId, Mod, target_name = _RegType, TargetName, _Addr, _Port,
?vtrace("handle_pdu(target_name) -> entry when"
"~n Mod: ~p", [Mod]),
F = fun() ->
- (catch Mod:handle_pdu(TargetName, ReqId, SnmpResponse, Data))
+ try
+ begin
+ Mod:handle_pdu(TargetName, ReqId, SnmpResponse, Data)
+ end
+ catch
+ T:E ->
+ CallbackArgs = [TargetName, ReqId, SnmpResponse, Data],
+ handle_invalid_result(handle_pdu, CallbackArgs, T, E)
+ end
end,
handle_callback(F),
ok;
@@ -2064,8 +2082,37 @@ do_handle_agent(DefUserId, DefMod,
SnmpInfo, DefData, State) ->
?vdebug("do_handle_agent -> entry when"
"~n DefUserId: ~p", [DefUserId]),
- case (catch DefMod:handle_agent(Addr, Port, Type, SnmpInfo, DefData)) of
- {'EXIT', {undef, _}} when Type =:= pdu ->
+ try DefMod:handle_agent(Addr, Port, Type, SnmpInfo, DefData) of
+ {register, UserId2, TargetName, Config} ->
+ ?vtrace("do_handle_agent -> register: "
+ "~n UserId2: ~p"
+ "~n TargetName: ~p"
+ "~n Config: ~p",
+ [UserId2, TargetName, Config]),
+ Config2 = ensure_present([{address, Addr}, {port, Port}], Config),
+ Config3 = [{reg_type, target_name} | Config2],
+ case snmpm_config:register_agent(UserId2,
+ TargetName, Config3) of
+ ok ->
+ ok;
+ {error, Reason} ->
+ error_msg("failed registering agent - "
+ "handling agent "
+ "~p <~p,~p>: ~n~w",
+ [TargetName, Addr, Port, Reason]),
+ ok
+ end;
+
+ ignore ->
+ ?vdebug("do_handle_agent -> ignore", []),
+ ok;
+
+ InvalidResult ->
+ CallbackArgs = [Addr, Port, Type, SnmpInfo, DefData],
+ handle_invalid_result(handle_agent, CallbackArgs, InvalidResult)
+
+ catch
+ error:{undef, _} when Type =:= pdu ->
%% Maybe, still on the old API
?vdebug("do_handle_agent -> maybe still on the old api", []),
case (catch DefMod:handle_agent(Addr, Port, SnmpInfo, DefData)) of
@@ -2113,10 +2160,10 @@ do_handle_agent(DefUserId, DefMod,
ok
end;
- {'EXIT', {undef, _}} ->
+ error:{undef, _} ->
%% If the user does not implement the new API (but the
%% old), then this clause catches all non-pdu handle_agent
- %% calls. These calls was previously never made,so we make
+ %% calls. These calls was previously never made, so we make
%% a best-effert call (using reg-type target_name) to the
%% various callback functions, and leave it to the user to
%% figure out
@@ -2148,31 +2195,11 @@ do_handle_agent(DefUserId, DefMod,
"regarding agent "
"<~p,~p>: ~n~w", [Type, Addr, Port, SnmpInfo])
end;
-
- {register, UserId2, TargetName, Config} ->
- ?vtrace("do_handle_agent -> register: "
- "~n UserId2: ~p"
- "~n TargetName: ~p"
- "~n Config: ~p",
- [UserId2, TargetName, Config]),
- Config2 = ensure_present([{address, Addr}, {port, Port}], Config),
- Config3 = [{reg_type, target_name} | Config2],
- case snmpm_config:register_agent(UserId2,
- TargetName, Config3) of
- ok ->
- ok;
- {error, Reason} ->
- error_msg("failed registering agent - "
- "handling agent "
- "~p <~p,~p>: ~n~w",
- [TargetName, Addr, Port, Reason]),
- ok
- end;
- _Ignore ->
- ?vdebug("do_handle_agent -> ignore", []),
- ok
-
+ T:E ->
+ CallbackArgs = [Addr, Port, Type, SnmpInfo, DefData],
+ handle_invalid_result(handle_agent, CallbackArgs, T, E)
+
end.
ensure_present([], Config) ->
@@ -2305,15 +2332,17 @@ do_handle_trap(UserId, Mod,
RegType, Target, Addr, Port, SnmpTrapInfo, Data, _State) ->
?vdebug("do_handle_trap -> entry with"
"~n UserId: ~p", [UserId]),
- HandleTrap =
+ {HandleTrap, CallbackArgs} =
case RegType of
target_name ->
- fun() -> Mod:handle_trap(Target, SnmpTrapInfo, Data) end;
+ {fun() -> Mod:handle_trap(Target, SnmpTrapInfo, Data) end,
+ [Target, SnmpTrapInfo, Data]};
addr_port ->
- fun() -> Mod:handle_trap(Addr, Port, SnmpTrapInfo, Data) end
+ {fun() -> Mod:handle_trap(Addr, Port, SnmpTrapInfo, Data) end,
+ [Addr, Port, SnmpTrapInfo, Data]}
end,
- case (catch HandleTrap()) of
+ try HandleTrap() of
{register, UserId2, Config} ->
?vtrace("do_handle_trap -> register: "
"~n UserId2: ~p"
@@ -2362,9 +2391,17 @@ do_handle_trap(UserId, Mod,
[Addr, Port, Reason]),
ok
end;
- _Ignore ->
+ ignore ->
?vtrace("do_handle_trap -> ignore", []),
- ok
+ ok;
+
+ InvalidResult ->
+ handle_invalid_result(handle_trap, CallbackArgs, InvalidResult)
+
+ catch
+ T:E ->
+ handle_invalid_result(handle_trap, CallbackArgs, T, E)
+
end.
@@ -2465,16 +2502,18 @@ do_handle_inform(UserId, Mod, Ref,
RegType, Target, Addr, Port, SnmpInform, Data, State) ->
?vdebug("do_handle_inform -> entry with"
"~n UserId: ~p", [UserId]),
- HandleInform =
+ {HandleInform, CallbackArgs} =
case RegType of
target_name ->
- fun() -> Mod:handle_inform(Target, SnmpInform, Data) end;
+ {fun() -> Mod:handle_inform(Target, SnmpInform, Data) end,
+ [Target, SnmpInform, Data]};
addr_port ->
- fun() -> Mod:handle_inform(Addr, Port, SnmpInform, Data) end
+ {fun() -> Mod:handle_inform(Addr, Port, SnmpInform, Data) end,
+ [Addr, Port, SnmpInform, Data]}
end,
Rep =
- case (catch HandleInform()) of
+ try HandleInform() of
{register, UserId2, Config} ->
?vtrace("do_handle_inform -> register: "
"~n UserId2: ~p"
@@ -2494,6 +2533,7 @@ do_handle_inform(UserId, Mod, Ref,
[Target2, Addr, Port, Reason]),
reply
end;
+
{register, UserId2, Target2, Config} ->
?vtrace("do_handle_inform -> register: "
"~n UserId2: ~p"
@@ -2512,6 +2552,7 @@ do_handle_inform(UserId, Mod, Ref,
[Target2, Addr, Port, Reason]),
reply
end;
+
unregister ->
?vtrace("do_handle_inform -> unregister", []),
case snmpm_config:unregister_agent(UserId,
@@ -2525,12 +2566,25 @@ do_handle_inform(UserId, Mod, Ref,
[Addr, Port, Reason]),
reply
end;
+
no_reply ->
?vtrace("do_handle_inform -> no_reply", []),
no_reply;
- _Ignore ->
+
+ ignore ->
?vtrace("do_handle_inform -> ignore", []),
+ reply;
+
+ InvalidResult ->
+ handle_invalid_result(handle_inform, CallbackArgs,
+ InvalidResult),
reply
+
+ catch
+ T:E ->
+ handle_invalid_result(handle_inform, CallbackArgs, T, E),
+ reply
+
end,
handle_inform_response(Rep, Ref, Addr, Port, State),
ok.
@@ -2760,15 +2814,17 @@ do_handle_report(UserId, Mod,
RegType, Target, Addr, Port, SnmpReport, Data, _State) ->
?vdebug("do_handle_report -> entry with"
"~n UserId: ~p", [UserId]),
- HandleReport =
+ {HandleReport, CallbackArgs} =
case RegType of
target_name ->
- fun() -> Mod:handle_report(Target, SnmpReport, Data) end;
+ {fun() -> Mod:handle_report(Target, SnmpReport, Data) end,
+ [Target, SnmpReport, Data]};
addr_port ->
- fun() -> Mod:handle_report(Addr, Port, SnmpReport, Data) end
+ {fun() -> Mod:handle_report(Addr, Port, SnmpReport, Data) end,
+ [Addr, Port, SnmpReport, Data]}
end,
- case (catch HandleReport()) of
+ try HandleReport() of
{register, UserId2, Config} ->
?vtrace("do_handle_report -> register: "
"~n UserId2: ~p"
@@ -2788,6 +2844,7 @@ do_handle_report(UserId, Mod,
[Addr, Port, Reason]),
ok
end;
+
{register, UserId2, Target2, Config} ->
?vtrace("do_handle_report -> register: "
"~n UserId2: ~p"
@@ -2806,6 +2863,7 @@ do_handle_report(UserId, Mod,
[Target2, Addr, Port, Reason]),
reply
end;
+
unregister ->
?vtrace("do_handle_trap -> unregister", []),
case snmpm_config:unregister_agent(UserId,
@@ -2819,9 +2877,20 @@ do_handle_report(UserId, Mod,
[Addr, Port, Reason]),
ok
end;
- _Ignore ->
+
+ ignore ->
?vtrace("do_handle_report -> ignore", []),
- ok
+ ok;
+
+ InvalidResult ->
+ handle_invalid_result(handle_report, CallbackArgs, InvalidResult),
+ reply
+
+ catch
+ T:E ->
+ handle_invalid_result(handle_report, CallbackArgs, T, E),
+ reply
+
end.
@@ -2835,6 +2904,25 @@ handle_callback(F) ->
end).
+
+handle_invalid_result(Func, Args, T, E) ->
+ Stacktrace = ?STACK(),
+ error_msg("Callback function failed: "
+ "~n Function: ~p"
+ "~n Args: ~p"
+ "~n Error Type: ~p"
+ "~n Error: ~p"
+ "~n Stacktrace: ~p",
+ [Func, Args, T, E, Stacktrace]).
+
+handle_invalid_result(Func, Args, InvalidResult) ->
+ error_msg("Callback function returned invalid result: "
+ "~n Function: ~p"
+ "~n Args: ~p"
+ "~n Invalid result: ~p",
+ [Func, Args, InvalidResult]).
+
+
handle_down(MonRef) ->
(catch do_handle_down(MonRef)).
diff --git a/lib/snmp/src/manager/snmpm_user.erl b/lib/snmp/src/manager/snmpm_user.erl
index 78aa560b2e..e6b0b6943e 100644
--- a/lib/snmp/src/manager/snmpm_user.erl
+++ b/lib/snmp/src/manager/snmpm_user.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2009. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -19,79 +19,100 @@
-module(snmpm_user).
--export([behaviour_info/1]).
-
-behaviour_info(callbacks) ->
- [{handle_error, 3},
- {handle_agent, 5},
- {handle_pdu, 4},
- {handle_trap, 3},
- {handle_inform, 3},
- {handle_report, 3}];
-behaviour_info(_) ->
- undefined.
-
-
-%% handle_error(ReqId, Reason, UserData) -> Reply
-%% ReqId -> integer()
-%% Reason -> term()
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore
-
-%% handle_agent(Addr, Port, Type, SnmpInfo, UserData) -> Reply
-%% Addr -> term()
-%% Port -> integer()
-%% Type -> pdu | trap | inform | report
-%% SnmpInfo -> {ErrorStatus, ErrorIndex, Varbinds}
-%% UserId -> term()
-%% ErrorStatus -> atom()
-%% ErrorIndex -> integer()
-%% Varbinds -> [varbind()]
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore | {register, UserId, agent_info()}
-%% agent_info() -> [{agent_info_item(), agent_info_value()}]
-%% This is the same info as in update_agent_info/4
-
-%% handle_pdu(TargetName, ReqId, SnmpResponse, UserData) -> Reply
-%% TargetName -> target_name()
-%% ReqId -> term() (returned when calling ag(...), ...)
-%% SnmpResponse -> {ErrorStatus, ErrorIndex, Varbinds}
-%% ErrorStatus -> atom()
-%% ErrorIndex -> integer()
-%% Varbinds -> [varbind()]
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore
-
-%% handle_trap(TargetName, SnmpTrapInfo, UserData) -> Reply
-%% TargetName -> target_name()
-%% SnmpTrapInfo -> {Enteprise, Generic, Spec, Timestamp, Varbinds} |
-%% {ErrorStatus, ErrorIndex, Varbinds}
-%% Enteprise -> oid()
-%% Generic -> integer()
-%% Spec -> integer()
-%% Timestamp -> integer()
-%% ErrorStatus -> atom()
-%% ErrorIndex -> integer()
-%% Varbinds -> [varbind()]
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore | unregister | {register, UserId, agent_info()}
-
-%% handle_inform(TargetName, SnmpInform, UserData) -> Reply
-%% TargetName -> target_name()
-%% SnmpInform -> {ErrorStatus, ErrorIndex, Varbinds}
-%% ErrorStatus -> atom()
-%% ErrorIndex -> integer()
-%% Varbinds -> [varbind()]
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore | unregister | {register, UserId, agent_info()}
-%%
-
-%% handle_report(TargetName, SnmpReport, UserData) -> Reply
-%% TargetName -> target_name()
-%% SnmpReport -> {ErrorStatus, ErrorIndex, Varbinds}
-%% ErrorStatus -> integer()
-%% ErrorIndex -> integer()
-%% Varbinds -> [varbind()]
-%% UserData -> term() (supplied when the user register)
-%% Reply -> ignore | unregister | {register, UserId, agent_info()}
+-export_type([
+ snmp_gen_info/0,
+ snmp_v1_trap_info/0
+ ]).
+
+-type snmp_gen_info() :: {ErrorStatus :: atom(),
+ ErrorIndex :: pos_integer(),
+ Varbinds :: [snmp:varbind()]}.
+-type snmp_v1_trap_info() :: {Enteprise :: snmp:oid(),
+ Generic :: integer(),
+ Spec :: integer(),
+ Timestamp :: integer(),
+ Varbinds :: [snmp:varbind()]}.
+-type ip_address() :: inet:ip_address().
+-type port_number() :: inet:port_number().
+
+
+%% *** handle_error ***
+%% An "asynchronous" error has been detected
+
+-callback handle_error(ReqId :: integer(),
+ Reason :: {unexpected_pdu, SnmpInfo :: snmp_gen_info()} |
+ {invalid_sec_info, SecInfo :: term(), SnmpInfo :: snmp_gen_info()} |
+ {empty_message, Addr :: ip_address(), Port :: port_number()} |
+ term(),
+ UserData :: term()) ->
+ snmp:void().
+
+
+%% *** handle_agent ***
+%% A message was received from an unknown agent
+
+-callback handle_agent(Addr :: term(),
+ Port :: pos_integer(),
+ Type :: pdu | trap | inform | report,
+ SnmpInfo :: snmp_gen_info() | snmp_v1_trap_info(),
+ UserData :: term()) ->
+ Reply :: ignore |
+ {register,
+ UserId :: term(),
+ RTargetName :: snmpm:target_name(),
+ AgentConfig :: [snmpm:agent_config()]}.
+
+
+%% *** handle_pdu ***
+%% Handle the reply to an async request (such as get, get-next and set).
+
+-callback handle_pdu(TargetName :: snmpm:target_name(),
+ ReqId :: term(),
+ SnmpResponse :: snmp_gen_info(),
+ UserData :: term()) ->
+ snmp:void().
+
+
+%% *** handle_trap ***
+%% Handle a trap/notification message received from an agent
+
+-callback handle_trap(TargetName :: snmpm:target_name(),
+ SnmpTrapInfo :: snmp_gen_info() | snmp_v1_trap_info(),
+ UserData :: term()) ->
+ Reply :: ignore |
+ unregister |
+ {register,
+ UserId :: term(),
+ RTargetName :: snmpm:target_name(),
+ AgentConfig :: [snmpm:agent_config()]}.
+
+
+%% *** handle_inform ***
+%% Handle a inform message received from an agent
+
+-callback handle_inform(TargetName :: snmpm:target_name(),
+ SnmpInform :: snmp_gen_info(),
+ UserData :: term()) ->
+ Reply :: ignore | no_reply |
+ unregister |
+ {register,
+ UserId :: term(),
+ RTargetName :: snmpm:target_name(),
+ AgentConfig :: [snmpm:agent_config()]}.
+
+
+%% *** handle_report ***
+%% Handle a report message received from an agent
+
+-callback handle_report(TargetName :: snmpm:target_name(),
+ SnmpReport :: snmp_gen_info(),
+ UserData :: term()) ->
+ Reply :: ignore |
+ unregister |
+ {register,
+ UserId :: term(),
+ RTargetName :: snmpm:target_name(),
+ AgentConfig :: [snmpm:agent_config()]}.
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 08:59:44 +0000