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Merge bitcoin/bitcoin#23253: bitcoin-tx: Reject non-integral and out of range int strings

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fa6f29de516c7af5206b91b59ada466032329250 bitcoin-tx: Reject non-integral and out of range multisig numbers (MarcoFalke)
fafab8ea5e6ed6b87fac57a5cd16a8135236cdd6 bitcoin-tx: Reject non-integral and out of range sequence ids (MarcoFalke)
fa53d3d8266ad0257315d07b71b4f8a711134622 test: Check that bitcoin-tx accepts whitespace around sequence id and multisig numbers (MarcoFalke)

Pull request description:

  Seems odd to silently accept arbitrary strings that don't even represent integral values.

  Fix that.

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This commit is contained in:
W. J. van der Laan 2021-10-13 13:48:36 +02:00 committed by Vijay
parent 11eeae2ab9
commit 2a2a2693d0
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2 changed files with 61 additions and 6 deletions
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19
src/bitcoin-tx.cpp
View File

@ -220,6 +220,16 @@ static void MutateTxLocktime(CMutableTransaction& tx, const std::string& cmdVal)
tx.nLockTime = (unsigned int) newLocktime;
}
template <typename T>
static T TrimAndParse(const std::string& int_str, const std::string& err)
{
const auto parsed{ToIntegral<T>(TrimString(int_str))};
if (!parsed.has_value()) {
throw std::runtime_error(err + " '" + int_str + "'");
}
return parsed.value();
}
static void MutateTxAddInput(CMutableTransaction& tx, const std::string& strInput)
{
std::vector<std::string> vStrInputParts = SplitString(strInput, ':');
@ -245,8 +255,9 @@ static void MutateTxAddInput(CMutableTransaction& tx, const std::string& strInpu
// extract the optional sequence number
uint32_t nSequenceIn = CTxIn::SEQUENCE_FINAL;
if (vStrInputParts.size() > 2)
nSequenceIn = std::stoul(vStrInputParts[2]);
if (vStrInputParts.size() > 2) {
nSequenceIn = TrimAndParse<uint32_t>(vStrInputParts.at(2), "invalid TX sequence id");
}
// append to transaction input list
CTxIn txin(txid, vout, CScript(), nSequenceIn);
@ -324,10 +335,10 @@ static void MutateTxAddOutMultiSig(CMutableTransaction& tx, const std::string& s
CAmount value = ExtractAndValidateValue(vStrInputParts[0]);
// Extract REQUIRED
uint32_t required = stoul(vStrInputParts[1]);
const uint32_t required{TrimAndParse<uint32_t>(vStrInputParts.at(1), "invalid multisig required number")};
// Extract NUMKEYS
uint32_t numkeys = stoul(vStrInputParts[2]);
const uint32_t numkeys{TrimAndParse<uint32_t>(vStrInputParts.at(2), "invalid multisig total number")};
// Validate there are the correct number of pubkeys
if (vStrInputParts.size() < numkeys + 3)

46
test/util/data/bitcoin-util-test.json
View File

@ -425,6 +425,30 @@
"output_cmp": "txcreatedata2.json",
"description": "Creates a new transaction with one input, one address output and one data (zero value) output (output in json)"
},
{ "exec": "./dash-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:11aa"],
"return_code": 1,
"error_txt": "error: invalid TX sequence id '11aa'",
"description": "Try to parse a sequence number outside the allowed range"
},
{ "exec": "./dash-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:-1"],
"return_code": 1,
"error_txt": "error: invalid TX sequence id '-1'",
"description": "Try to parse a sequence number outside the allowed range"
},
{ "exec": "./dash-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:4294967296"],
"return_code": 1,
"error_txt": "error: invalid TX sequence id '4294967296'",
"description": "Try to parse a sequence number outside the allowed range"
},
{ "exec": "./dash-tx",
"args":
["-create",
@ -433,6 +457,14 @@
"output_cmp": "txcreatedata_seq0.hex",
"description": "Creates a new transaction with one input with sequence number and one address output"
},
{ "exec": "./dash-tx",
"args":
["-create",
"in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0: 4294967293 ",
"outaddr=0.18:XijDvbYpPmznwgpWD3DkdYNfGmRP2KoVSk"],
"output_cmp": "txcreatedata_seq0.hex",
"description": "Creates a new transaction with one input with sequence number (+whitespace) and one address output"
},
{ "exec": "./dash-tx",
"args":
["-json",
@ -457,6 +489,18 @@
"output_cmp": "txcreatedata_seq1.json",
"description": "Adds a new input with sequence number to a transaction (output in json)"
},
{ "exec": "./dash-tx",
"args": ["-create", "outmultisig=1:-2:3:02a5:021:02df", "nversion=1"],
"return_code": 1,
"error_txt": "error: invalid multisig required number '-2'",
"description": "Try to parse a multisig number outside the allowed range"
},
{ "exec": "./dash-tx",
"args": ["-create", "outmultisig=1:2:3a:02a5:021:02df", "nversion=1"],
"return_code": 1,
"error_txt": "error: invalid multisig total number '3a'",
"description": "Try to parse a multisig number outside the allowed range"
},
{ "exec": "./dash-tx",
"args": ["-create", "outmultisig=1:2:3:02a5613bd857b7048924264d1e70e08fb2a7e6527d32b7ab1bb993ac59964ff397:021ac43c7ff740014c3b33737ede99c967e4764553d1b2b83db77c83b8715fa72d:02df2089105c77f266fa11a9d33f05c735234075f2e8780824c6b709415f9fb485", "nversion=1"],
"output_cmp": "txcreatemultisig1.hex",
@ -465,7 +509,7 @@
{ "exec": "./dash-tx",
"args": ["-json", "-create", "outmultisig=1: 2: 3:02a5613bd857b7048924264d1e70e08fb2a7e6527d32b7ab1bb993ac59964ff397:021ac43c7ff740014c3b33737ede99c967e4764553d1b2b83db77c83b8715fa72d:02df2089105c77f266fa11a9d33f05c735234075f2e8780824c6b709415f9fb485", "nversion=1"],
"output_cmp": "txcreatemultisig1.json",
"description": "Creates a new transaction with a single 2-of-3 multisig output (output in json)"
"description": "Creates a new transaction with a single 2-of-3 multisig output (with whitespace, output in json)"
},
{ "exec": "./dash-tx",
"args": ["-create", "outmultisig=1:2:3:02a5613bd857b7048924264d1e70e08fb2a7e6527d32b7ab1bb993ac59964ff397:021ac43c7ff740014c3b33737ede99c967e4764553d1b2b83db77c83b8715fa72d:02df2089105c77f266fa11a9d33f05c735234075f2e8780824c6b709415f9fb485:S", "nversion=1"],