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-rw-r--r--lib/snmp/src/agent/snmp_user_based_sm_mib.erl153
1 files changed, 82 insertions, 71 deletions
diff --git a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
index 2e801622e7..9d67e336af 100644
--- a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
+++ b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl
@@ -54,6 +54,7 @@
%% Columns not accessible via SNMP
-define(usmUserAuthKey, 14).
-define(usmUserPrivKey, 15).
+-define(is_cloning, 16).
%%%-----------------------------------------------------------------
@@ -564,7 +565,9 @@ usmUserTable(set, RowIndex, Cols0) ->
{ok, Cols} ->
?vtrace("usmUserTable(set) -> verified"
"~n Cols: ~p", [Cols]),
- NCols = pre_set(RowIndex, Cols),
+ % check whether we're cloning. if so, get cloned params and add a few
+ % defaults that might be needed.
+ NCols = pre_set(RowIndex, validate_clone_from(RowIndex, Cols)),
?vtrace("usmUserTable(set) -> pre-set: "
"~n NCols: ~p", [NCols]),
%% NOTE: The NCols parameter is sent to snmp_generic, but not to
@@ -730,30 +733,40 @@ validate_is_set_ok(Error, _RowIndex, _Cols) ->
Error.
do_validate_is_set_ok(RowIndex, Cols) ->
- validate_clone_from(RowIndex, Cols),
- validate_auth_protocol(RowIndex, Cols),
- validate_auth_key_change(RowIndex, Cols),
- validate_own_auth_key_change(RowIndex, Cols),
- validate_priv_protocol(RowIndex, Cols),
- validate_priv_key_change(RowIndex, Cols),
- validate_own_priv_key_change(RowIndex, Cols),
+ NCols = validate_clone_from(RowIndex, Cols),
+ validate_auth_protocol(RowIndex, NCols),
+ validate_auth_key_change(RowIndex, NCols),
+ validate_own_auth_key_change(RowIndex, NCols),
+ validate_priv_protocol(RowIndex, NCols),
+ validate_priv_key_change(RowIndex, NCols),
+ validate_own_priv_key_change(RowIndex, NCols),
ok.
pre_set(RowIndex, Cols) ->
+ %% Remove the ?is_cloning member again; it must no longer be
+ %% present.
+ Cols0 = lists:keydelete(?is_cloning, 1, Cols),
%% Possibly initialize the usmUserSecurityName and privacy keys
case snmp_generic:table_row_exists(db(usmUserTable), RowIndex) of
- true -> Cols;
+ true -> Cols0;
false ->
SecName = get_user_name(RowIndex),
- [{?usmUserSecurityName, SecName} | Cols] ++
- [{?usmUserAuthKey, ""},
- {?usmUserPrivKey, ""}]
+ Cols1 = [{?usmUserSecurityName, SecName} | Cols0],
+ case proplists:get_value(?is_cloning, Cols) of
+ true ->
+ % the row is just being cloned. the cloned user's
+ % passwords are already present in Cols and must
+ % not be overwritten.
+ Cols1;
+ _ ->
+ Cols1 ++ [{?usmUserAuthKey, ""},
+ {?usmUserPrivKey, ""}]
+ end
end.
validate_set({noError, 0}, RowIndex, Cols) ->
%% Now, all is_set_ok validation steps have been executed. So
%% everything is ready for the set.
- set_clone_from(RowIndex, Cols),
set_auth_key_change(RowIndex, Cols),
set_own_auth_key_change(RowIndex, Cols),
set_priv_key_change(RowIndex, Cols),
@@ -778,35 +791,63 @@ validate_clone_from(RowIndex, Cols) ->
case OldCloneFrom of
{value, Val} when Val /= noinit ->
%% This means that the cloning is already done...
- ok;
+ no_cloning(Cols);
_ ->
- %% Otherwise, we must check the CloneFrom value
- case snmp_generic:table_get_element(db(usmUserTable),
- RowIndex2,
- ?usmUserStatus) of
- {value, ?'RowStatus_active'} -> ok;
- _ -> inconsistentName(?usmUserCloneFrom)
- end
+ %% Otherwise, we must check the CloneFrom value. It
+ %% must relate to a usmUserEntry that exists and is active.
+ case snmp_generic:table_get_row(db(usmUserTable), RowIndex2) of
+ CloneFromRow when is_tuple(CloneFromRow) ->
+ case element(?usmUserStatus, CloneFromRow) of
+ ?'RowStatus_active' ->
+ get_cloned_cols(CloneFromRow, Cols);
+ _ ->
+ inconsistentName(?usmUserCloneFrom)
+ end;
+ undefined ->
+ inconsistentName(?usmUserCloneFrom)
+ end
end;
false ->
- ok
+ % no ?usmUserCloneFrom specified, don't modify columns
+ no_cloning(Cols)
end.
+get_cloned_cols(CloneFromRow, Cols) ->
+ % initialize cloned columns with data from CloneFromRow
+ % and overwrite that again with data found in Cols
+ AuthP = element(?usmUserAuthProtocol, CloneFromRow),
+ PrivP = element(?usmUserPrivProtocol, CloneFromRow),
+ AuthK = element(?usmUserAuthKey, CloneFromRow),
+ PrivK = element(?usmUserPrivKey, CloneFromRow),
+ ClonedCols = [{?usmUserAuthProtocol, AuthP},
+ {?usmUserPrivProtocol, PrivP},
+ {?usmUserAuthKey, AuthK},
+ {?usmUserPrivKey, PrivK},
+ {?is_cloning, true}
+ ],
+ Func = fun({Col, _} = Item, NCols) ->
+ lists:keystore(Col, 1, NCols, Item)
+ end,
+ Cols1 = lists:foldl(Func, ClonedCols, Cols),
+ lists:keysort(1, Cols1).
+
+no_cloning(Cols0) ->
+ Cols1 = lists:keydelete(?usmUserCloneFrom, Cols0),
+ lists:keydelete(?is_cloning, Cols1).
+
validate_auth_protocol(RowIndex, Cols) ->
case lists:keysearch(?usmUserAuthProtocol, 1, Cols) of
{value, {_Col, AuthProtocol}} ->
- %% Check if the row has been cloned; we can't check the
+ %% Check if the row is being cloned; we can't check the
%% old value of authProtocol, because if the row was
%% createAndWaited, the default value would have been
%% written (usmNoAuthProtocol).
- OldCloneFrom = snmp_generic:table_get_element(db(usmUserTable),
- RowIndex,
- ?usmUserCloneFrom),
- case OldCloneFrom of
- {value, Val} when Val /= noinit ->
- %% This means that the cloning is already done; set is ok
- %% if new protocol is usmNoAuthProtocol
+ IsCloning = proplists:get_value(?is_cloning, Cols, false),
+ if
+ not IsCloning ->
+ %% This means that the row is not being cloned right
+ %% now; set is ok if new protocol is usmNoAuthProtocol
case AuthProtocol of
?usmNoAuthProtocol ->
%% Check that the Priv protocl is noPriv
@@ -821,7 +862,7 @@ validate_auth_protocol(RowIndex, Cols) ->
_ ->
wrongValue(?usmUserAuthProtocol)
end;
- _ ->
+ true ->
%% Otherwise, check that the new protocol is known,
%% and that the system we're running supports the
%% hash function.
@@ -897,10 +938,7 @@ validate_key_change(RowIndex, Cols, KeyChangeCol, Type) ->
OldCloneFrom = snmp_generic:table_get_element(db(usmUserTable),
RowIndex,
?usmUserCloneFrom),
- IsClonePresent = case lists:keysearch(?usmUserCloneFrom, 1, Cols) of
- {value, _} -> true;
- false -> false
- end,
+ IsClonePresent = proplists:get_value(?is_cloning, Cols, false),
%% Set is ok if 1) the user already is created, 2) this is
%% a new user, which has been cloned, or is about to be
%% cloned.
@@ -912,7 +950,7 @@ validate_key_change(RowIndex, Cols, KeyChangeCol, Type) ->
%% The user is cloned in this operation
ok;
_ ->
- %% The user doen't exist, or hasn't been cloned,
+ %% The user doesn't exist, or hasn't been cloned,
%% and is not cloned in this operation.
inconsistentName(KeyChangeCol)
end,
@@ -945,11 +983,9 @@ validate_priv_protocol(RowIndex, Cols) ->
%% old value of privhProtocol, because if the row was
%% createAndWaited, the default value would have been
%% written (usmNoPrivProtocol).
- OldCloneFrom = snmp_generic:table_get_element(db(usmUserTable),
- RowIndex,
- ?usmUserCloneFrom),
- case OldCloneFrom of
- {value, Val} when Val /= noinit ->
+ IsCloning = proplists:get_value(?is_cloning, Cols, false),
+ if
+ not IsCloning ->
%% This means that the cloning is already done; set is ok
%% if new protocol is usmNoPrivProtocol
case PrivProtocol of
@@ -962,7 +998,7 @@ validate_priv_protocol(RowIndex, Cols) ->
_ ->
wrongValue(?usmUserPrivProtocol)
end;
- _ ->
+ true ->
%% Otherwise, check that the new protocol is known,
%% and that the system we're running supports the
%% crypto function.
@@ -1005,31 +1041,6 @@ validate_priv_protocol(RowIndex, Cols) ->
end.
-set_clone_from(RowIndex, Cols) ->
- %% If CloneFrom is modified, do the cloning.
- case lists:keysearch(?usmUserCloneFrom, 1, Cols) of
- {value, {_Col, RowPointer}} ->
- RowIndex2 = extract_row(RowPointer), % won't fail
- CloneRow = snmp_generic:table_get_row(db(usmUserTable), RowIndex2,
- foi(usmUserTable)),
- AuthP = element(?usmUserAuthProtocol, CloneRow),
- PrivP = element(?usmUserPrivProtocol, CloneRow),
- AuthK = element(?usmUserAuthKey, CloneRow),
- PrivK = element(?usmUserPrivKey, CloneRow),
- SCols = [{?usmUserAuthProtocol, AuthP},
- {?usmUserPrivProtocol, PrivP},
- {?usmUserAuthKey, AuthK},
- {?usmUserPrivKey, PrivK}],
- case snmp_generic:table_set_elements(db(usmUserTable),
- RowIndex,
- SCols) of
- true -> ok;
- false -> {commitFailed, ?usmUserCloneFrom}
- end;
- false ->
- ok
- end.
-
set_auth_key_change(RowIndex, Cols) ->
set_key_change(RowIndex, Cols, ?usmUserAuthKeyChange, auth).
@@ -1071,9 +1082,9 @@ extract_row([H | T], [H | T2]) -> extract_row(T, T2);
extract_row([], [?usmUserSecurityName | T]) -> T;
extract_row(_, _) -> wrongValue(?usmUserCloneFrom).
-%% Pre: the user exixt
+%% Pre: the user exists or is being cloned in this operation
get_auth_proto(RowIndex, Cols) ->
- %% The protocol can be chanegd by the request too, otherwise,
+ %% The protocol can be changed by the request too, otherwise,
%% check the stored protocol.
case lists:keysearch(?usmUserAuthProtocol, 1, Cols) of
{value, {_, Protocol}} ->
@@ -1090,9 +1101,9 @@ get_auth_proto(RowIndex, Cols) ->
end
end.
-%% Pre: the user exixt
+%% Pre: the user exists or is being cloned in this operation
get_priv_proto(RowIndex, Cols) ->
- %% The protocol can be chanegd by the request too, otherwise,
+ %% The protocol can be changed by the request too, otherwise,
%% check the stored protocol.
case lists:keysearch(?usmUserPrivProtocol, 1, Cols) of
{value, {_, Protocol}} ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 10:44:03 +0000