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Non-chain patch to PoC spreading factor choice. #1865

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Non-chain patch to PoC spreading factor choice. #1865

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db1e717
Stage a possible patch to PoC spreading factor choice.
ke6jjj Dec 8, 2022
6747c19
Fill in actual spreading values and dividing lines.
ke6jjj Dec 9, 2022
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33 changes: 32 additions & 1 deletion src/poc/miner_onion_server_light.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -266,7 +266,7 @@ decrypt(Type, IV, OnionCompactKey, Tag, CipherText, RSSI, SNR, Frequency, Channe
erlang:spawn(fun() -> ?MODULE:send_receipt(Data, OnionCompactKey, Type, os:system_time(nanosecond),
RSSI, SNR, Frequency, Channel, DataRate, TxPower, State) end);
_ ->
case blockchain_region_params_v1:get_spreading(RegionParams, erlang:byte_size(Packet)) of
case get_spreading(Region, RegionParams, erlang:byte_size(Packet)) of
{error, Why} ->
lager:error("unable to get spreading, reason: ~p", [Why]),
ok;
Expand Down Expand Up @@ -389,6 +389,37 @@ spreading(_, L) when L < 139 ->
spreading(_, _) ->
"SF7BW125".

%%
%% Provide an override of on-chain parameters for the time being.
%%
%% This sequence of functions is designed to TEMPORARILY OVERRIDE
%% the AS923 region parameters on-chain, just for the purposes
%% of PoC.
%%
-spec as923_spreading(Len :: pos_integer()) -> atom().
as923_spreading(L) when L =< 59 ->
'SF12';
as923_spreading(L) when L =< 124 ->
'SF9';
as923_spreading(L) when L =< 251 ->
'SF8';
as923_spreading(_) ->
'SF7'.

-spec get_spreading(RegionName :: atom(), RegionParams :: blockchain_region_param_v1:region_param_v1(), Size :: pos_integer()) -> {ok, atom()} | {error, any()}.
get_spreading('AS923_1', _RegionParams, Size) ->
{ok, as923_spreading(Size)};
get_spreading('AS923_1B', _RegionParams, Size) ->
{ok, as923_spreading(Size)};
get_spreading('AS923_2', _RegionParams, Size) ->
{ok, as923_spreading(Size)};
get_spreading('AS923_3', _RegionParams, Size) ->
{ok, as923_spreading(Size)};
get_spreading('AS923_4', _RegionParams, Size) ->
{ok, as923_spreading(Size)};
get_spreading(_RegionName, RegionParams, Size) ->
blockchain_region_params_v1:get_spreading(RegionParams, Size).

-ifdef(EQC).
-spec try_decrypt(binary(), binary(), binary(), binary(), function()) -> {ok, binary(), binary()} | {error, any()}.
try_decrypt(IV, OnionCompactKey, Tag, CipherText, ECDHFun) ->
Expand Down