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correct excluded routers size for exploratory request

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orignal 2022-07-30 14:28:09 -04:00
parent 0e6d888ed3
commit fc63ca6982
1 changed files with 6 additions and 5 deletions
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11
libi2pd/NetDb.cpp
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@ -945,9 +945,9 @@ namespace data
}
uint16_t numExcluded = bufbe16toh (excluded);
excluded += 2;
if (numExcluded > 512)
if (numExcluded > 512 || (excluded - buf) + numExcluded*32 > (int)msg->GetPayloadLength ())
{
LogPrint (eLogWarning, "NetDb: Number of excluded peers", numExcluded, " exceeds 512");
LogPrint (eLogWarning, "NetDb: Number of excluded peers", numExcluded, " is too much");
return;
}
@ -956,10 +956,11 @@ namespace data
{
LogPrint (eLogInfo, "NetDb: Exploratory close to ", key, " ", numExcluded, " excluded");
std::set<IdentHash> excludedRouters;
const uint8_t * excluded_ident = excluded;
for (int i = 0; i < numExcluded; i++)
{
excludedRouters.insert (excluded);
excluded += 32;
excludedRouters.insert (excluded_ident);
excluded_ident += 32;
}
std::vector<IdentHash> routers;
for (int i = 0; i < 3; i++)
@ -1017,7 +1018,7 @@ namespace data
if (closestFloodfills.empty ())
LogPrint (eLogWarning, "NetDb: Requested ", key, " not found, ", numExcluded, " peers excluded");
replyMsg = CreateDatabaseSearchReply (ident, closestFloodfills);
}
}
}
excluded += numExcluded * 32;
if (replyMsg)