diff options
Diffstat (limited to 'lib/snmp/src/agent/snmp_user_based_sm_mib.erl')
-rw-r--r-- | lib/snmp/src/agent/snmp_user_based_sm_mib.erl | 52 |
1 files changed, 16 insertions, 36 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 69dce337ba..f6e4fd3951 100644 --- a/lib/snmp/src/agent/snmp_user_based_sm_mib.erl +++ b/lib/snmp/src/agent/snmp_user_based_sm_mib.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2014. All Rights Reserved. +%% Copyright Ericsson AB 1999-2015. 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 -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% 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% %% @@ -439,8 +440,9 @@ usmUserSpinLock(print) -> usmUserSpinLock(new) -> snmp_generic:variable_func(new, {usmUserSpinLock, volatile}), - {A1,A2,A3} = erlang:now(), - random:seed(A1,A2,A3), + random:seed(erlang:phash2([node()]), + erlang:monotonic_time(), + erlang:unique_integer()), Val = random:uniform(2147483648) - 1, snmp_generic:variable_func(set, Val, {usmUserSpinLock, volatile}); @@ -1191,29 +1193,7 @@ extract_new_key(Hash, OldKey, KeyChange) -> -define(i8(Int), Int band 255). mk_random(Len) when Len =< 20 -> - %% Use of yield(): - %% This will either schedule another process, or fail and invoke - %% the error_handler (in old versions). In either case, it is - %% safe to assume that now, reductions and garbage_collection have - %% changed in a non-deterministically way. - {_,_,A} = erlang:now(), - catch erlang:yield(), - {_,_,B} = erlang:now(), - catch erlang:yield(), - {_,_,C} = erlang:now(), - {D,_} = erlang:statistics(reductions), - {E,_} = erlang:statistics(runtime), - {F,_} = erlang:statistics(wall_clock), - {G,H,_} = erlang:statistics(garbage_collection), - catch erlang:yield(), - {_,_,C2} = erlang:now(), - {D2,_} = erlang:statistics(reductions), - {_,H2,_} = erlang:statistics(garbage_collection), - %% X(N) means we can use N bits from variable X: - %% A(16) B(16) C(16) D(16) E(8) F(16) G(8) H(16) - Rnd20 = [?i16(A),?i16(B),?i16(C),?i16(D),?i8(E),?i16(F), - ?i8(G),?i16(H),?i16(C2),?i16(D2),?i16(H2)], - lists:sublist(Rnd20, Len). + binary_to_list(crypto:strong_rand_bytes(Len)). split(0, Rest, FirstRev) -> {lists:reverse(FirstRev), Rest}; |