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147 lines
3.4 KiB
147 lines
3.4 KiB
#!/usr/bin/env bash |
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# Copyright (c) 2014 The Bitcoin Core developers |
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# Distributed under the MIT software license, see the accompanying |
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# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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# Test marking of spent outputs |
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# Create a transaction graph with four transactions, |
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# A/B/C/D |
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# C spends A |
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# D spends B and C |
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# Then simulate C being mutated, to create C' |
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# that is mined. |
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# A is still (correctly) considered spent. |
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# B should be treated as unspent |
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if [ $# -lt 1 ]; then |
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echo "Usage: $0 path_to_binaries" |
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echo "e.g. $0 ../../src" |
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echo "Env vars BITCOIND and BITCOINCLI may be used to specify the exact binaries used" |
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exit 1 |
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fi |
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set -f |
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BITCOIND=${BITCOIND:-${1}/bitcoind} |
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CLI=${BITCOINCLI:-${1}/bitcoin-cli} |
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DIR="${BASH_SOURCE%/*}" |
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SENDANDWAIT="${DIR}/send.sh" |
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if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi |
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. "$DIR/util.sh" |
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D=$(mktemp -d test.XXXXX) |
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# Two nodes; one will play the part of merchant, the |
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# other an evil transaction-mutating miner. |
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D1=${D}/node1 |
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CreateDataDir $D1 port=11000 rpcport=11001 |
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B1ARGS="-datadir=$D1 -debug=mempool" |
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$BITCOIND $B1ARGS & |
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B1PID=$! |
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D2=${D}/node2 |
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CreateDataDir $D2 port=11010 rpcport=11011 |
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B2ARGS="-datadir=$D2 -debug=mempool" |
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$BITCOIND $B2ARGS & |
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B2PID=$! |
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# Wait until all four nodes are at the same block number |
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function WaitBlocks { |
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while : |
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do |
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sleep 1 |
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declare -i BLOCKS1=$( GetBlocks $B1ARGS ) |
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declare -i BLOCKS2=$( GetBlocks $B2ARGS ) |
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if (( BLOCKS1 == BLOCKS2 )) |
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then |
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break |
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fi |
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done |
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} |
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# Wait until node has $N peers |
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function WaitPeers { |
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while : |
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do |
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declare -i PEERS=$( $CLI $1 getconnectioncount ) |
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if (( PEERS == "$2" )) |
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then |
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break |
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fi |
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sleep 1 |
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done |
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} |
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echo "Generating test blockchain..." |
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# Start with B2 connected to B1: |
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$CLI $B2ARGS addnode 127.0.0.1:11000 onetry |
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WaitPeers "$B1ARGS" 1 |
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# 2 block, 50 XBT each == 100 XBT |
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# These will be transactions "A" and "B" |
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$CLI $B1ARGS setgenerate true 2 |
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WaitBlocks |
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# 100 blocks, 0 mature == 0 XBT |
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$CLI $B2ARGS setgenerate true 100 |
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WaitBlocks |
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CheckBalance "$B1ARGS" 100 |
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CheckBalance "$B2ARGS" 0 |
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# restart B2 with no connection |
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$CLI $B2ARGS stop > /dev/null 2>&1 |
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wait $B2PID |
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$BITCOIND $B2ARGS & |
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B2PID=$! |
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B1ADDRESS=$( $CLI $B1ARGS getnewaddress ) |
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B2ADDRESS=$( $CLI $B2ARGS getnewaddress ) |
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# Transaction C: send-to-self, spend A |
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TXID_C=$( $CLI $B1ARGS sendtoaddress $B1ADDRESS 50.0) |
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# Transaction D: spends B and C |
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TXID_D=$( $CLI $B1ARGS sendtoaddress $B2ADDRESS 100.0) |
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CheckBalance "$B1ARGS" 0 |
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# Mutate TXID_C and add it to B2's memory pool: |
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RAWTX_C=$( $CLI $B1ARGS getrawtransaction $TXID_C ) |
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# ... mutate C to create C' |
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L=${RAWTX_C:82:2} |
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NEWLEN=$( printf "%x" $(( 16#$L + 1 )) ) |
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MUTATEDTX_C=${RAWTX_C:0:82}${NEWLEN}4c${RAWTX_C:84} |
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# ... give mutated tx1 to B2: |
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MUTATEDTXID=$( $CLI $B2ARGS sendrawtransaction $MUTATEDTX_C ) |
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echo "TXID_C: " $TXID_C |
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echo "Mutated: " $MUTATEDTXID |
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# Re-connect nodes, and have both nodes mine some blocks: |
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$CLI $B2ARGS addnode 127.0.0.1:11000 onetry |
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WaitPeers "$B1ARGS" 1 |
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# Having B2 mine the next block puts the mutated |
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# transaction C in the chain: |
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$CLI $B2ARGS setgenerate true 1 |
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WaitBlocks |
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# B1 should still be able to spend 100, because D is conflicted |
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# so does not count as a spend of B |
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CheckBalance "$B1ARGS" 100 |
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$CLI $B2ARGS stop > /dev/null 2>&1 |
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wait $B2PID |
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$CLI $B1ARGS stop > /dev/null 2>&1 |
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wait $B1PID |
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echo "Tests successful, cleaning up" |
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rm -rf $D |
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exit 0
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