libstore: refuse to serialise ancient protocols

We don't want to deal with these at all, let's stop doing so.

(marking this one as the fix commit since its immediate predecessors
aren't the complete fix)
Fixes: https://git.lix.systems/lix-project/lix/issues/325

Change-Id: Ieea1b0b8ac0f903d1e24e5b3e63cfe12eeec119d
This commit is contained in:
Jade Lovelace 2024-05-24 20:45:05 -06:00
parent 985ce8a865
commit c22a7f50cb
6 changed files with 25 additions and 39 deletions

View file

@ -264,14 +264,8 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
TrustedFlag trusted, RecursiveFlag recursive, WorkerProto::Version clientVersion,
Source & from, BufferedSink & to, WorkerProto::Op op)
{
WorkerProto::ReadConn rconn {
.from = from,
.version = clientVersion,
};
WorkerProto::WriteConn wconn {
.to = to,
.version = clientVersion,
};
WorkerProto::ReadConn rconn{from, clientVersion};
WorkerProto::WriteConn wconn{to, clientVersion};
switch (op) {
@ -1030,10 +1024,7 @@ void processConnection(
auto temp = trusted
? store->isTrustedClient()
: std::optional { NotTrusted };
WorkerProto::WriteConn wconn {
.to = to,
.version = clientVersion,
};
WorkerProto::WriteConn wconn {to, clientVersion};
WorkerProto::write(*store, wconn, temp);
}

View file

@ -68,10 +68,7 @@ struct RemoteStore::Connection
*/
operator WorkerProto::ReadConn ()
{
return WorkerProto::ReadConn {
.from = from,
.version = daemonVersion,
};
return WorkerProto::ReadConn {from, daemonVersion};
}
/**
@ -84,10 +81,7 @@ struct RemoteStore::Connection
*/
operator WorkerProto::WriteConn ()
{
return WorkerProto::WriteConn {
.to = to,
.version = daemonVersion,
};
return WorkerProto::WriteConn {to, daemonVersion};
}
virtual ~Connection();

View file

@ -466,7 +466,7 @@ void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
sink
<< exportMagic
<< printStorePath(info.path);
WorkerProto::WriteConn nested { .to = sink, .version = conn->daemonVersion };
WorkerProto::WriteConn nested { sink, conn->daemonVersion };
WorkerProto::write(*this, nested, info.references);
sink
<< (info.deriver ? printStorePath(*info.deriver) : "")
@ -511,14 +511,13 @@ void RemoteStore::addMultipleToStore(
RepairFlag repair,
CheckSigsFlag checkSigs)
{
auto remoteVersion = getProtocol();
auto source = sinkToSource([&](Sink & sink) {
sink << pathsToCopy.size();
for (auto & [pathInfo, pathSource] : pathsToCopy) {
WorkerProto::Serialise<ValidPathInfo>::write(*this,
WorkerProto::WriteConn {
.to = sink,
.version = 16,
},
WorkerProto::WriteConn {sink, remoteVersion},
pathInfo);
pathSource->drainInto(sink);
}

View file

@ -368,15 +368,14 @@ void Store::addMultipleToStore(
RepairFlag repair,
CheckSigsFlag checkSigs)
{
auto remoteVersion = getProtocol();
auto expected = readNum<uint64_t>(source);
for (uint64_t i = 0; i < expected; ++i) {
// FIXME we should not be using the worker protocol here, let
// alone the worker protocol with a hard-coded version!
// FIXME we should not be using the worker protocol here at all!
auto info = WorkerProto::Serialise<ValidPathInfo>::read(*this,
WorkerProto::ReadConn {
.from = source,
.version = 16,
});
WorkerProto::ReadConn {source, remoteVersion}
);
info.ultimate = false;
addToStore(info, source, repair, checkSigs);
}

View file

@ -72,6 +72,10 @@ struct WorkerProto
struct ReadConn {
Source & from;
Version version;
ReadConn(Source & from, Version version) : from(from), version(version) {
assert(version >= MIN_SUPPORTED_WORKER_PROTO_VERSION);
}
};
/**
@ -81,6 +85,10 @@ struct WorkerProto
struct WriteConn {
Sink & to;
Version version;
WriteConn(Sink & to, Version version) : to(to), version(version) {
assert(version >= MIN_SUPPORTED_WORKER_PROTO_VERSION);
}
};
/**

View file

@ -39,10 +39,8 @@ public:
StringSource from { expected };
Proto::template Serialise<T>::read(
*LibStoreTest::store,
typename Proto::ReadConn {
.from = from,
.version = version,
});
typename Proto::ReadConn {from, version}
);
});
ASSERT_EQ(got, value);
@ -60,10 +58,7 @@ public:
StringSink to;
Proto::write(
*LibStoreTest::store,
typename Proto::WriteConn {
.to = to,
.version = version,
},
typename Proto::WriteConn {to, version},
value);
if (testAccept())