diff options
| -rw-r--r-- | lib/snmp/doc/src/notes.xml | 21 | ||||
| -rw-r--r-- | lib/snmp/src/agent/snmp_view_based_acm_mib.erl | 102 | ||||
| -rw-r--r-- | lib/snmp/src/app/snmp.appup.src | 10 |
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", |