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libstore daemon: remove very old protocol support (<2.3)

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Change-Id: Ic05f478a659c199a66fe78ae05d357d317ac41b0
This commit is contained in:
jade 2024-05-24 20:45:05 -06:00
parent 24255748b4
commit 7b1d38bc4f
2 changed files with 33 additions and 50 deletions
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76
src/libstore/daemon.cc
View file

@ -47,10 +47,15 @@ struct TunnelLogger : public Logger
Sync<State> state_;
WorkerProto::Version clientVersion;
/**
* Worker protocol version of the other side. May be newer than this daemon.
*/
const WorkerProto::Version clientVersion;
TunnelLogger(FdSink & to, WorkerProto::Version clientVersion)
: to(to), clientVersion(clientVersion) { }
: to(to), clientVersion(clientVersion) {
assert(clientVersion >= MIN_SUPPORTED_WORKER_PROTO_VERSION);
}
void enqueueMsg(const std::string & s)
{
@ -129,12 +134,6 @@ struct TunnelLogger : public Logger
void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
const std::string & s, const Fields & fields, ActivityId parent) override
{
if (GET_PROTOCOL_MINOR(clientVersion) < 20) {
if (!s.empty())
log(lvl, s + "...");
return;
}
StringSink buf;
buf << STDERR_START_ACTIVITY << act << lvl << type << s << fields << parent;
enqueueMsg(buf.s);
@ -142,7 +141,6 @@ struct TunnelLogger : public Logger
void stopActivity(ActivityId act) override
{
if (GET_PROTOCOL_MINOR(clientVersion) < 20) return;
StringSink buf;
buf << STDERR_STOP_ACTIVITY << act;
enqueueMsg(buf.s);
@ -150,7 +148,6 @@ struct TunnelLogger : public Logger
void result(ActivityId act, ResultType type, const Fields & fields) override
{
if (GET_PROTOCOL_MINOR(clientVersion) < 20) return;
StringSink buf;
buf << STDERR_RESULT << act << type << fields;
enqueueMsg(buf.s);
@ -527,22 +524,19 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
case WorkerProto::Op::BuildPaths: {
auto drvs = WorkerProto::Serialise<DerivedPaths>::read(*store, rconn);
BuildMode mode = bmNormal;
if (GET_PROTOCOL_MINOR(clientVersion) >= 15) {
mode = buildModeFromInteger(readInt(from));
BuildMode mode = buildModeFromInteger(readInt(from));
/* Repairing is not atomic, so disallowed for "untrusted"
clients.
/* Repairing is not atomic, so disallowed for "untrusted"
clients.
FIXME: layer violation in this message: the daemon code (i.e.
this file) knows whether a client/connection is trusted, but it
does not how how the client was authenticated. The mechanism
need not be getting the UID of the other end of a Unix Domain
Socket.
*/
if (mode == bmRepair && !trusted)
throw Error("repairing is not allowed because you are not in 'trusted-users'");
}
FIXME: layer violation in this message: the daemon code (i.e.
this file) knows whether a client/connection is trusted, but it
does not how how the client was authenticated. The mechanism
need not be getting the UID of the other end of a Unix Domain
Socket.
*/
if (mode == bmRepair && !trusted)
throw Error("repairing is not allowed because you are not in 'trusted-users'");
logger->startWork();
store->buildPaths(drvs, mode);
logger->stopWork();
@ -746,13 +740,11 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
clientSettings.buildCores = readInt(from);
clientSettings.useSubstitutes = readInt(from);
if (GET_PROTOCOL_MINOR(clientVersion) >= 12) {
unsigned int n = readInt(from);
for (unsigned int i = 0; i < n; i++) {
auto name = readString(from);
auto value = readString(from);
clientSettings.overrides.emplace(name, value);
}
unsigned int n = readInt(from);
for (unsigned int i = 0; i < n; i++) {
auto name = readString(from);
auto value = readString(from);
clientSettings.overrides.emplace(name, value);
}
logger->startWork();
@ -822,15 +814,14 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
try {
info = store->queryPathInfo(path);
} catch (InvalidPath &) {
if (GET_PROTOCOL_MINOR(clientVersion) < 17) throw;
// The path being invalid isn't fatal here since it will just be
// sent as not present.
}
logger->stopWork();
if (info) {
if (GET_PROTOCOL_MINOR(clientVersion) >= 17)
to << 1;
to << 1;
WorkerProto::write(*store, wconn, static_cast<const UnkeyedValidPathInfo &>(*info));
} else {
assert(GET_PROTOCOL_MINOR(clientVersion) >= 17);
to << 0;
}
break;
@ -904,12 +895,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
else {
std::unique_ptr<Source> source;
StringSink saved;
if (GET_PROTOCOL_MINOR(clientVersion) >= 21)
source = std::make_unique<TunnelSource>(from, to);
else {
copyNAR(from, saved);
source = std::make_unique<StringSource>(saved.s);
}
source = std::make_unique<TunnelSource>(from, to);
logger->startWork();
@ -1011,7 +997,7 @@ void processConnection(
to.flush();
WorkerProto::Version clientVersion = readInt(from);
if (clientVersion < 0x10a)
if (clientVersion < MIN_SUPPORTED_WORKER_PROTO_VERSION)
throw Error("the Nix client version is too old");
auto tunnelLogger = new TunnelLogger(to, clientVersion);
@ -1027,13 +1013,13 @@ void processConnection(
printMsgUsing(prevLogger, lvlDebug, "%d operations", opCount);
});
if (GET_PROTOCOL_MINOR(clientVersion) >= 14 && readInt(from)) {
// FIXME: what is *supposed* to be in this even?
if (readInt(from)) {
// Obsolete CPU affinity.
readInt(from);
}
if (GET_PROTOCOL_MINOR(clientVersion) >= 11)
readInt(from); // obsolete reserveSpace
readInt(from); // obsolete reserveSpace
if (GET_PROTOCOL_MINOR(clientVersion) >= 33)
to << nixVersion;

7
src/libstore/remote-store-connection.hh
View file

@ -27,11 +27,8 @@ struct RemoteStore::Connection
FdSource from;
/**
* Worker protocol version used for the connection.
*
* Despite its name, I think it is actually the maximum version both
* sides support. (If the maximum doesn't exist, we would fail to
* establish a connection and produce a value of this type.)
* The worker protocol version of the connected daemon. This may be newer
* than this Lix supports.
*/
WorkerProto::Version daemonVersion;