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-rw-r--r--lib/snmp/doc/src/notes.xml21
-rw-r--r--lib/snmp/src/agent/snmp_view_based_acm_mib.erl102
-rw-r--r--lib/snmp/src/app/snmp.appup.src10
3 files changed, 92 insertions, 41 deletions
diff --git a/lib/snmp/doc/src/notes.xml b/lib/snmp/doc/src/notes.xml
index 048623c61e..ea5648b808 100644
--- a/lib/snmp/doc/src/notes.xml
+++ b/lib/snmp/doc/src/notes.xml
@@ -41,18 +41,27 @@
<section>
<title>Improvements and new features</title>
+<!--
<p>-</p>
+-->
-<!--
<list type="bulleted">
<item>
- <p>[agent] Improve error handling while reading agent config files.
- Some files contain mandatory information and is therefor themself
- mandatory. </p>
- <p>Own Id: OTP-9943</p>
+ <p>[agent] Errors in vacmAccessTable RowStatus handling.
+ There are problems with the handling of vacmAccessTableStatus
+ that cause some SNMP test suites to report errors.
+ Most notably, erroneous set operations frequently cause "genErr"
+ errors to be returned. These "genErr" errors are usually caused
+ by badmatch exceptions coming from
+ <c>{ok, Row} = snmpa_vacm:get_row(RowIndex)</c>
+ if the row does not exist. </p>
+ <p>The semantics of the RowStatus handling in that table has
+ been adjusted to be compliant with the RowStatus
+ textual description of SNPMv2-TC MIB. </p>
+ <p>Stefan Zegenhagen</p>
+ <p>Own Id: OTP-10164</p>
</item>
</list>
--->
</section>
diff --git a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
index 479a44795f..e7dea52857 100644
--- a/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
+++ b/lib/snmp/src/agent/snmp_view_based_acm_mib.erl
@@ -565,45 +565,85 @@ vacmAccessTable(is_set_ok, RowIndex, Cols0) ->
case (catch verify_vacmAccessTable_cols(Cols0, [])) of
{ok, Cols} ->
IsValidKey = is_valid_key(RowIndex),
- case lists:keysearch(?vacmAccessStatus, 1, Cols) of
- %% Ok, if contextMatch is init
- {value, {Col, ?'RowStatus_active'}} ->
- {ok, Row} = snmpa_vacm:get_row(RowIndex),
- case element(?vacmAContextMatch, Row) of
- noinit -> {inconsistentValue, Col};
- _ -> {noError, 0}
+ StatusCol = lists:keyfind(?vacmAccessStatus, 1, Cols),
+ MaybeRow = snmpa_vacm:get_row(RowIndex),
+ case {StatusCol, MaybeRow} of
+ {{Col, ?'RowStatus_active'}, false} ->
+ %% row does not yet exist => inconsistentValue
+ %% (see SNMPv2-TC.mib, RowStatus textual convention)
+ {inconsistentValue, Col};
+ {{Col, ?'RowStatus_active'}, {ok, Row}} ->
+ %% Ok, if contextMatch is init
+ case element(?vacmAContextMatch, Row) of
+ noinit ->
+ %% check whether ContextMatch is being set in
+ %% the same operation
+ case proplists:get_value(?vacmAccessContextMatch,
+ Cols) of
+ undefined ->
+ %% no, we can't make this row active yet
+ {inconsistentValue, Col};
+ _ ->
+ %% ok, activate the row
+ {noError, 0}
+ end;
+ _ ->
+ {noError, 0}
end;
- {value, {Col, ?'RowStatus_notInService'}} -> % Ok, if not notReady
- {ok, Row} = snmpa_vacm:get_row(RowIndex),
+ {{Col, ?'RowStatus_notInService'}, false} ->
+ %% row does not yet exist => inconsistentValue
+ %% (see SNMPv2-TC.mib, RowStatus textual convention)
+ {inconsistentValue, Col};
+ {{Col, ?'RowStatus_notInService'}, {ok, Row}} ->
+ %% Ok, if not notReady
case element(?vacmAStatus, Row) of
- ?'RowStatus_notReady' -> {inconsistentValue, Col};
- _ -> {noError, 0}
+ ?'RowStatus_notReady' ->
+ {inconsistentValue, Col};
+ _ ->
+ {noError, 0}
end;
- {value, {Col, ?'RowStatus_notReady'}} -> % never ok!
+ {{Col, ?'RowStatus_notReady'}, _} ->
+ %% never ok!
{inconsistentValue, Col};
- {value, {Col, ?'RowStatus_createAndGo'}} -> % ok, if it doesn't exist
+ {{Col, ?'RowStatus_createAndGo'}, false} ->
+ %% ok, if it doesn't exist
Res = lists:keysearch(?vacmAccessContextMatch, 1, Cols),
- case snmpa_vacm:get_row(RowIndex) of
- false when (IsValidKey =:= true) andalso
- is_tuple(Res) -> {noError, 0};
- false -> {noCreation, Col}; % Bad RowIndex
- _ -> {inconsistentValue, Col}
+ if
+ IsValidKey =/= true ->
+ %% bad RowIndex => noCreation
+ {noCreation, Col};
+ is_tuple(Res) ->
+ %% required field is present => noError
+ {noError, 0};
+ true ->
+ %% required field is missing => inconsistentValue
+ {inconsistentValue, Col}
end;
- {value, {Col, ?'RowStatus_createAndWait'}} -> % ok, if it doesn't exist
- case snmpa_vacm:get_row(RowIndex) of
- false when (IsValidKey =:= true) -> {noError, 0};
- false -> {noCreation, Col}; % Bad RowIndex
- _ -> {inconsistentValue, Col}
+ {{Col, ?'RowStatus_createAndGo'}, _} ->
+ %% row already exists => inconsistentValue
+ {inconsistentValue, Col};
+ {{Col, ?'RowStatus_createAndWait'}, false} ->
+ %% ok, if it doesn't exist
+ if
+ IsValidKey =:= true ->
+ %% RowIndex is valid => noError
+ {noError, 0};
+ true ->
+ {noCreation, Col}
end;
- {value, {_Col, ?'RowStatus_destroy'}} -> % always ok!
+ {{Col, ?'RowStatus_createAndWait'}, _} ->
+ %% Row already exists => inconsistentValue
+ {inconsistentValue, Col};
+ {value, {_Col, ?'RowStatus_destroy'}} ->
+ %% always ok!
{noError, 0};
- _ -> % otherwise, it's a change; it must exist
- case snmpa_vacm:get_row(RowIndex) of
- {ok, _} ->
- {noError, 0};
- false ->
- {inconsistentName, element(1, hd(Cols))}
- end
+ {_, false} ->
+ %% otherwise, it's a row change;
+ %% row does not exist => inconsistentName
+ {inconsistentName, element(1, hd(Cols))};
+ _ ->
+ %% row change and row exists => noError
+ {noError, 0}
end;
Error ->
Error
diff --git a/lib/snmp/src/app/snmp.appup.src b/lib/snmp/src/app/snmp.appup.src
index 91dfc50dc9..3991cdbce8 100644
--- a/lib/snmp/src/app/snmp.appup.src
+++ b/lib/snmp/src/app/snmp.appup.src
@@ -24,8 +24,9 @@
[
{"4.22",
[
- {load_module, snmpm, soft_purge, soft_purge, []},
- {load_module, snmp_pdus, soft_purge, soft_purge, []}
+ {load_module, snmpm, soft_purge, soft_purge, []},
+ {load_module, snmp_pdus, soft_purge, soft_purge, []},
+ {load_module, snmp_view_based_acm_mib, soft_purge, soft_purge, []}
]
},
{"4.21.7",
@@ -312,8 +313,9 @@
[
{"4.22",
[
- {load_module, snmpm, soft_purge, soft_purge, []},
- {load_module, snmp_pdus, soft_purge, soft_purge, []}
+ {load_module, snmpm, soft_purge, soft_purge, []},
+ {load_module, snmp_pdus, soft_purge, soft_purge, []},
+ {load_module, snmp_view_based_acm_mib, soft_purge, soft_purge, []}
]
},
{"4.21.7",
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 03:12:42 +0000