aboutsummaryrefslogtreecommitdiffstats
path: root/lib/snmp/src/agent/snmpa_get_mechanism.erl
blob: 7be4ae79a2574cf262af6f1ba9cc11bde8ca0beb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2019-2019. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%%     http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%

-module(snmpa_get_mechanism).

%%
%% This module defines the behaviour for the undocumented (hidden)
%% get-mechanism feature. This allows for implementing your own
%% handling of get, get-next and get-bulk requests.
%% Probably only useful for special cases (e.g. optimization).
%%



%% ----------- do_get/2,3 -----------------------------------------------------

%% Purpose: Handles all VBs in a request that is inside the 
%%          mibview (local).

-callback do_get(UnsortedVBs    :: [snmp:varbind()],
                 IsNotification :: boolean()) ->
    {noError, 0, ResVBs :: [snmp:varbind()]} |
    {ErrStatus :: snmp:error_status(), ErrIndex :: snmp:error_index(), []}.


%% Purpose: Handles "get-requests".

-callback do_get(MibView        :: snmp_view_based_acm_mib:mibview(), 
                 UnsortedVBs    :: [snmp:varbind()],
                 IsNotification :: boolean()) ->
    {noError, 0, ResVBs :: [snmp:varbind()]} |
    {ErrStatus :: snmp:error_status(), ErrIndex :: snmp:error_index(), []}.




%% ----------- do_get_next/2 ------------------------------------------------

%% Purpose: Handles "get-next-requests".

-callback do_get_next(MibView     :: snmp_view_based_acm_mib:mibview(),
                      UnsortedVBs :: [snmp:varbind()]) ->
    {noError, 0, ResVBs :: [snmp:varbind()]} |
    {ErrStatus :: snmp:error_status(), ErrIndex :: snmp:error_index(), []}.




%% ----------- do_get_bulk/6 ------------------------------------------------

-callback do_get_bulk(MibView        :: snmp_view_based_acm_mib:mibview(),
                      NonRepeaters   :: non_neg_integer(),
                      MaxRepetitions :: non_neg_integer(),
                      PduMS          :: pos_integer(),
                      VBs            :: [snmp:varbind()],
                      MaxVBs         :: pos_integer()) ->
    {noError, 0, ResVBs :: [snmp:varbind()]} |
    {ErrStatus :: snmp:error_status(), ErrIndex :: snmp:error_index(), []}.