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Merge #21043: net: Avoid UBSan warning in ProcessMessage(...)

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3ddbf22ed179a2db733af4b521bec5d2b13ebf4b util: Disallow negative mocktime (MarcoFalke)
f5f2f9716885e7548809e77f46b493c896a019bf net: Avoid UBSan warning in ProcessMessage(...) (practicalswift)

Pull request description:

  Avoid UBSan warning in `ProcessMessage(...)`.

  Context: https://github.com/bitcoin/bitcoin/pull/20380#issuecomment-770427182 (thanks Crypt-iQ!)

ACKs for top commit:
  MarcoFalke:
    re-ACK 3ddbf22ed179a2db733af4b521bec5d2b13ebf4b only change is adding patch written by me
  ajtowns:
    ACK 3ddbf22ed179a2db733af4b521bec5d2b13ebf4b -- code review only

Tree-SHA512: e8d7af0457ca86872b75a4e406c0a93aafd841c2962e244e147e748cc7ca118c56be0fdafe53765f4b291410030b2c3cc8f76f733b37a955d34fc885ab6037b9
This commit is contained in:
MarcoFalke 2021-02-11 12:39:57 +01:00 committed by UdjinM6
parent c7a6f378f5
commit cff1c7b2c3
4 changed files with 17 additions and 3 deletions
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3
src/net_processing.cpp
View File

@ -2850,6 +2850,9 @@ void PeerManagerImpl::ProcessMessage(
vRecv >> nVersion >> nServiceInt >> nTime >> addrMe;
nSendVersion = std::min(nVersion, PROTOCOL_VERSION);
if (nTime < 0) {
nTime = 0;
}
nServices = ServiceFlags(nServiceInt);
if (!pfrom.fInbound)
{

5
src/rpc/misc.cpp
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@ -540,7 +540,10 @@ static UniValue setmocktime(const JSONRPCRequest& request)
LOCK(cs_main);
RPCTypeCheck(request.params, {UniValue::VNUM});
int64_t time = request.params[0].get_int64();
const int64_t time{request.params[0].get_int64()};
if (time < 0) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Mocktime can not be negative: %s.", time));
}
SetMockTime(time);
if (auto* node_context = GetContext<NodeContext>(request.context)) {
for (const auto& chain_client : node_context->chain_clients) {

5
src/util/time.cpp
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@ -10,6 +10,8 @@
#include <compat.h>
#include <util/time.h>
#include <util/check.h>
#include <atomic>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <ctime>
@ -19,7 +21,7 @@
void UninterruptibleSleep(const std::chrono::microseconds& n) { std::this_thread::sleep_for(n); }
static std::atomic<int64_t> nMockTime(0); //!< For unit testing
static std::atomic<int64_t> nMockTime(0); //!< For testing
int64_t GetTime()
{
@ -47,6 +49,7 @@ template std::chrono::microseconds GetTime();
void SetMockTime(int64_t nMockTimeIn)
{
Assert(nMockTimeIn >= 0);
nMockTime.store(nMockTimeIn, std::memory_order_relaxed);
}

5
test/functional/rpc_uptime.py
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@ -10,6 +10,7 @@ Test corresponds to code in rpc/server.cpp.
import time
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_raises_rpc_error
class UptimeTest(BitcoinTestFramework):
@ -18,8 +19,12 @@ class UptimeTest(BitcoinTestFramework):
self.setup_clean_chain = True
def run_test(self):
self._test_negative_time()
self._test_uptime()
def _test_negative_time(self):
assert_raises_rpc_error(-8, "Mocktime can not be negative: -1.", self.nodes[0].setmocktime, -1)
def _test_uptime(self):
wait_time = 10
self.nodes[0].setmocktime(int(time.time() + wait_time))