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wallet2: ensure transfers and sweeps use same fee calc logic 

Ensures both transfers and sweeps use a fee that's calculated
from the tx's weight. Using different logic could theoretically
enable distinguishability between the two types of txs. We don't
want that.
This commit is contained in:
j-berman 2023-05-27 06:07:54 -07:00 committed by wowario
parent 1cb536ff45
commit 1e38c3c508
No known key found for this signature in database
GPG Key ID: 793504B449C69220
1 changed files with 3 additions and 3 deletions
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6
src/wallet/wallet2.cpp
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@ -11352,7 +11352,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
else else
{ {
LOG_PRINT_L2("We made a tx, adjusting fee and saving it, we need " << print_money(needed_fee) << " and we have " << print_money(test_ptx.fee)); LOG_PRINT_L2("We made a tx, adjusting fee and saving it, we need " << print_money(needed_fee) << " and we have " << print_money(test_ptx.fee));
while (needed_fee > test_ptx.fee) { do {
if (use_rct) if (use_rct)
transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, valid_public_keys_cache, unlock_time, needed_fee, extra, transfer_selected_rct(tx.dsts, tx.selected_transfers, fake_outs_count, outs, valid_public_keys_cache, unlock_time, needed_fee, extra,
test_tx, test_ptx, rct_config, use_view_tags); test_tx, test_ptx, rct_config, use_view_tags);
@ -11363,7 +11363,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
needed_fee = calculate_fee(use_per_byte_fee, test_ptx.tx, txBlob.size(), base_fee, fee_quantization_mask); needed_fee = calculate_fee(use_per_byte_fee, test_ptx.tx, txBlob.size(), base_fee, fee_quantization_mask);
LOG_PRINT_L2("Made an attempt at a final " << get_weight_string(test_ptx.tx, txBlob.size()) << " tx, with " << print_money(test_ptx.fee) << LOG_PRINT_L2("Made an attempt at a final " << get_weight_string(test_ptx.tx, txBlob.size()) << " tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change"); " fee and " << print_money(test_ptx.change_dts.amount) << " change");
} } while (needed_fee > test_ptx.fee);
LOG_PRINT_L2("Made a final " << get_weight_string(test_ptx.tx, txBlob.size()) << " tx, with " << print_money(test_ptx.fee) << LOG_PRINT_L2("Made a final " << get_weight_string(test_ptx.tx, txBlob.size()) << " tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change"); " fee and " << print_money(test_ptx.change_dts.amount) << " change");
@ -11759,7 +11759,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_from(const crypton
THROW_WALLET_EXCEPTION_IF(needed_fee > available_for_fee, error::wallet_internal_error, "Transaction cannot pay for itself"); THROW_WALLET_EXCEPTION_IF(needed_fee > available_for_fee, error::wallet_internal_error, "Transaction cannot pay for itself");
do { do {
LOG_PRINT_L2("We made a tx, adjusting fee and saving it"); LOG_PRINT_L2("We made a tx, adjusting fee and saving it, we need " << print_money(needed_fee) << " and we have " << print_money(test_ptx.fee));
// distribute total transferred amount between outputs // distribute total transferred amount between outputs
uint64_t amount_transferred = available_for_fee - needed_fee; uint64_t amount_transferred = available_for_fee - needed_fee;
uint64_t dt_amount = amount_transferred / outputs; uint64_t dt_amount = amount_transferred / outputs;