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Merge changes from topic "protocol" into main

Browse source 
* changes:
  libstore client: remove remaining dead code
  libstore: refuse to serialise ancient protocols
  libstore client: remove support for <2.3 clients
  libstore daemon: remove very old protocol support (<2.3)
  Delete old ValidPathInfo test, fix UnkeyedValidPathInfo
  Set up minimum protocol version
This commit is contained in:
jade 2024-06-17 22:08:48 +00:00 committed by Gerrit Code Review
parent bcb774688f c1f2733dd6
commit ce2b48aa41
12 changed files with 159 additions and 319 deletions
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91
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);
@ -267,14 +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) {
@ -527,22 +518,19 @@ 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 +734,11 @@ 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 +808,14 @@ 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 +889,7 @@ 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 +991,7 @@ 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 +1007,13 @@ 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;
@ -1044,10 +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);
}

17
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;
@ -71,10 +68,7 @@ struct RemoteStore::Connection
*/
operator WorkerProto::ReadConn ()
{
return WorkerProto::ReadConn {
.from = from,
.version = daemonVersion,
};
return WorkerProto::ReadConn {from, daemonVersion};
}
/**
@ -87,10 +81,7 @@ struct RemoteStore::Connection
*/
operator WorkerProto::WriteConn ()
{
return WorkerProto::WriteConn {
.to = to,
.version = daemonVersion,
};
return WorkerProto::WriteConn {to, daemonVersion};
}
virtual ~Connection();

247
src/libstore/remote-store.cc
View file

@ -75,17 +75,14 @@ void RemoteStore::initConnection(Connection & conn)
conn.from >> conn.daemonVersion;
if (GET_PROTOCOL_MAJOR(conn.daemonVersion) != GET_PROTOCOL_MAJOR(PROTOCOL_VERSION))
throw Error("Nix daemon protocol version not supported");
if (GET_PROTOCOL_MINOR(conn.daemonVersion) < 10)
if (GET_PROTOCOL_MINOR(conn.daemonVersion) < MIN_SUPPORTED_MINOR_WORKER_PROTO_VERSION)
throw Error("the Nix daemon version is too old");
conn.to << PROTOCOL_VERSION;
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 14) {
// Obsolete CPU affinity.
conn.to << 0;
}
// Obsolete CPU affinity.
conn.to << 0;
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 11)
conn.to << false; // obsolete reserveSpace
conn.to << false; // obsolete reserveSpace
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 33) {
conn.to.flush();
@ -126,24 +123,22 @@ void RemoteStore::setOptions(Connection & conn)
<< settings.buildCores
<< settings.useSubstitutes;
if (GET_PROTOCOL_MINOR(conn.daemonVersion) >= 12) {
std::map<std::string, Config::SettingInfo> overrides;
settings.getSettings(overrides, true); // libstore settings
fileTransferSettings.getSettings(overrides, true);
overrides.erase(settings.keepFailed.name);
overrides.erase(settings.keepGoing.name);
overrides.erase(settings.tryFallback.name);
overrides.erase(settings.maxBuildJobs.name);
overrides.erase(settings.maxSilentTime.name);
overrides.erase(settings.buildCores.name);
overrides.erase(settings.useSubstitutes.name);
overrides.erase(loggerSettings.showTrace.name);
overrides.erase(experimentalFeatureSettings.experimentalFeatures.name);
overrides.erase(settings.pluginFiles.name);
conn.to << overrides.size();
for (auto & i : overrides)
conn.to << i.first << i.second.value;
}
std::map<std::string, Config::SettingInfo> overrides;
settings.getSettings(overrides, true); // libstore settings
fileTransferSettings.getSettings(overrides, true);
overrides.erase(settings.keepFailed.name);
overrides.erase(settings.keepGoing.name);
overrides.erase(settings.tryFallback.name);
overrides.erase(settings.maxBuildJobs.name);
overrides.erase(settings.maxSilentTime.name);
overrides.erase(settings.buildCores.name);
overrides.erase(settings.useSubstitutes.name);
overrides.erase(loggerSettings.showTrace.name);
overrides.erase(experimentalFeatureSettings.experimentalFeatures.name);
overrides.erase(settings.pluginFiles.name);
conn.to << overrides.size();
for (auto & i : overrides)
conn.to << i.first << i.second.value;
auto ex = conn.processStderr();
if (ex) std::rethrow_exception(ex);
@ -207,20 +202,13 @@ bool RemoteStore::isValidPathUncached(const StorePath & path)
StorePathSet RemoteStore::queryValidPaths(const StorePathSet & paths, SubstituteFlag maybeSubstitute)
{
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
StorePathSet res;
for (auto & i : paths)
if (isValidPath(i)) res.insert(i);
return res;
} else {
conn->to << WorkerProto::Op::QueryValidPaths;
WorkerProto::write(*this, *conn, paths);
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 27) {
conn->to << maybeSubstitute;
}
conn.processStderr();
return WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
conn->to << WorkerProto::Op::QueryValidPaths;
WorkerProto::write(*this, *conn, paths);
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 27) {
conn->to << maybeSubstitute;
}
conn.processStderr();
return WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
}
@ -236,20 +224,10 @@ StorePathSet RemoteStore::queryAllValidPaths()
StorePathSet RemoteStore::querySubstitutablePaths(const StorePathSet & paths)
{
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
StorePathSet res;
for (auto & i : paths) {
conn->to << WorkerProto::Op::HasSubstitutes << printStorePath(i);
conn.processStderr();
if (readInt(conn->from)) res.insert(i);
}
return res;
} else {
conn->to << WorkerProto::Op::QuerySubstitutablePaths;
WorkerProto::write(*this, *conn, paths);
conn.processStderr();
return WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
}
conn->to << WorkerProto::Op::QuerySubstitutablePaths;
WorkerProto::write(*this, *conn, paths);
conn.processStderr();
return WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
}
@ -259,45 +237,25 @@ void RemoteStore::querySubstitutablePathInfos(const StorePathCAMap & pathsMap, S
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 12) {
for (auto & i : pathsMap) {
SubstitutablePathInfo info;
conn->to << WorkerProto::Op::QuerySubstitutablePathInfo << printStorePath(i.first);
conn.processStderr();
unsigned int reply = readInt(conn->from);
if (reply == 0) continue;
auto deriver = readString(conn->from);
if (deriver != "")
info.deriver = parseStorePath(deriver);
info.references = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
info.downloadSize = readLongLong(conn->from);
info.narSize = readLongLong(conn->from);
infos.insert_or_assign(i.first, std::move(info));
}
} else {
conn->to << WorkerProto::Op::QuerySubstitutablePathInfos;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 22) {
StorePathSet paths;
for (auto & path : pathsMap)
paths.insert(path.first);
WorkerProto::write(*this, *conn, paths);
} else
WorkerProto::write(*this, *conn, pathsMap);
conn.processStderr();
size_t count = readNum<size_t>(conn->from);
for (size_t n = 0; n < count; n++) {
SubstitutablePathInfo & info(infos[parseStorePath(readString(conn->from))]);
auto deriver = readString(conn->from);
if (deriver != "")
info.deriver = parseStorePath(deriver);
info.references = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
info.downloadSize = readLongLong(conn->from);
info.narSize = readLongLong(conn->from);
}
conn->to << WorkerProto::Op::QuerySubstitutablePathInfos;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 22) {
StorePathSet paths;
for (auto & path : pathsMap)
paths.insert(path.first);
WorkerProto::write(*this, *conn, paths);
} else
WorkerProto::write(*this, *conn, pathsMap);
conn.processStderr();
size_t count = readNum<size_t>(conn->from);
for (size_t n = 0; n < count; n++) {
SubstitutablePathInfo & info(infos[parseStorePath(readString(conn->from))]);
auto deriver = readString(conn->from);
if (deriver != "")
info.deriver = parseStorePath(deriver);
info.references = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
info.downloadSize = readLongLong(conn->from);
info.narSize = readLongLong(conn->from);
}
}
@ -314,10 +272,10 @@ std::shared_ptr<const ValidPathInfo> RemoteStore::queryPathInfoUncached(const St
return nullptr;
throw;
}
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 17) {
bool valid; conn->from >> valid;
if (!valid) return nullptr;
}
bool valid; conn->from >> valid;
if (!valid) return nullptr;
return std::make_shared<ValidPathInfo>(
StorePath{path},
WorkerProto::Serialise<UnkeyedValidPathInfo>::read(*this, *conn));
@ -346,7 +304,7 @@ StorePathSet RemoteStore::queryValidDerivers(const StorePath & path)
StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
{
if (GET_PROTOCOL_MINOR(getProtocol()) >= 0x16) {
if (GET_PROTOCOL_MINOR(getProtocol()) >= 22) {
return Store::queryDerivationOutputs(path);
}
auto conn(getConnection());
@ -358,7 +316,7 @@ StorePathSet RemoteStore::queryDerivationOutputs(const StorePath & path)
std::map<std::string, std::optional<StorePath>> RemoteStore::queryPartialDerivationOutputMap(const StorePath & path, Store * evalStore_)
{
if (GET_PROTOCOL_MINOR(getProtocol()) >= 0x16) {
if (GET_PROTOCOL_MINOR(getProtocol()) >= 22) {
if (!evalStore_) {
auto conn(getConnection());
conn->to << WorkerProto::Op::QueryDerivationOutputMap << printStorePath(path);
@ -498,51 +456,21 @@ void RemoteStore::addToStore(const ValidPathInfo & info, Source & source,
{
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 18) {
conn->to << WorkerProto::Op::ImportPaths;
conn->to << WorkerProto::Op::AddToStoreNar
<< printStorePath(info.path)
<< (info.deriver ? printStorePath(*info.deriver) : "")
<< info.narHash.to_string(Base16, false);
WorkerProto::write(*this, *conn, info.references);
conn->to << info.registrationTime << info.narSize
<< info.ultimate << info.sigs << renderContentAddress(info.ca)
<< repair << !checkSigs;
auto source2 = sinkToSource([&](Sink & sink) {
sink << 1 // == path follows
;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 23) {
conn.withFramedSink([&](Sink & sink) {
copyNAR(source, sink);
sink
<< exportMagic
<< printStorePath(info.path);
WorkerProto::WriteConn nested { .to = sink, .version = conn->daemonVersion };
WorkerProto::write(*this, nested, info.references);
sink
<< (info.deriver ? printStorePath(*info.deriver) : "")
<< 0 // == no legacy signature
<< 0 // == no path follows
;
});
conn.processStderr(0, source2.get());
auto importedPaths = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
assert(importedPaths.size() <= 1);
}
else {
conn->to << WorkerProto::Op::AddToStoreNar
<< printStorePath(info.path)
<< (info.deriver ? printStorePath(*info.deriver) : "")
<< info.narHash.to_string(Base16, false);
WorkerProto::write(*this, *conn, info.references);
conn->to << info.registrationTime << info.narSize
<< info.ultimate << info.sigs << renderContentAddress(info.ca)
<< repair << !checkSigs;
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 23) {
conn.withFramedSink([&](Sink & sink) {
copyNAR(source, sink);
});
} else if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 21) {
conn.processStderr(0, &source);
} else {
copyNAR(source, conn->to);
conn.processStderr(0, nullptr);
}
} else {
conn.processStderr(0, &source);
}
}
@ -553,14 +481,13 @@ 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);
}
@ -667,15 +594,8 @@ void RemoteStore::buildPaths(const std::vector<DerivedPath> & drvPaths, BuildMod
auto conn(getConnection());
conn->to << WorkerProto::Op::BuildPaths;
assert(GET_PROTOCOL_MINOR(conn->daemonVersion) >= 13);
WorkerProto::write(*this, *conn, drvPaths);
if (GET_PROTOCOL_MINOR(conn->daemonVersion) >= 15)
conn->to << buildMode;
else
/* Old daemons did not take a 'buildMode' parameter, so we
need to validate it here on the client side. */
if (buildMode != bmNormal)
throw Error("repairing or checking is not supported when building through the Nix daemon");
conn->to << buildMode;
conn.processStderr();
readInt(conn->from);
}
@ -866,25 +786,14 @@ void RemoteStore::queryMissing(const std::vector<DerivedPath> & targets,
StorePathSet & willBuild, StorePathSet & willSubstitute, StorePathSet & unknown,
uint64_t & downloadSize, uint64_t & narSize)
{
{
auto conn(getConnection());
if (GET_PROTOCOL_MINOR(conn->daemonVersion) < 19)
// Don't hold the connection handle in the fallback case
// to prevent a deadlock.
goto fallback;
conn->to << WorkerProto::Op::QueryMissing;
WorkerProto::write(*this, *conn, targets);
conn.processStderr();
willBuild = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
willSubstitute = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
unknown = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
conn->from >> downloadSize >> narSize;
return;
}
fallback:
return Store::queryMissing(targets, willBuild, willSubstitute,
unknown, downloadSize, narSize);
auto conn(getConnection());
conn->to << WorkerProto::Op::QueryMissing;
WorkerProto::write(*this, *conn, targets);
conn.processStderr();
willBuild = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
willSubstitute = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
unknown = WorkerProto::Serialise<StorePathSet>::read(*this, *conn);
conn->from >> downloadSize >> narSize;
}

11
src/libstore/store-api.cc
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);
}

21
src/libstore/worker-protocol.cc
View file

@ -165,11 +165,11 @@ UnkeyedValidPathInfo WorkerProto::Serialise<UnkeyedValidPathInfo>::read(const St
if (deriver != "") info.deriver = store.parseStorePath(deriver);
info.references = WorkerProto::Serialise<StorePathSet>::read(store, conn);
conn.from >> info.registrationTime >> info.narSize;
if (GET_PROTOCOL_MINOR(conn.version) >= 16) {
conn.from >> info.ultimate;
info.sigs = readStrings<StringSet>(conn.from);
info.ca = ContentAddress::parseOpt(readString(conn.from));
}
conn.from >> info.ultimate;
info.sigs = readStrings<StringSet>(conn.from);
info.ca = ContentAddress::parseOpt(readString(conn.from));
return info;
}
@ -180,12 +180,11 @@ void WorkerProto::Serialise<UnkeyedValidPathInfo>::write(const Store & store, Wr
<< pathInfo.narHash.to_string(Base16, false);
WorkerProto::write(store, conn, pathInfo.references);
conn.to << pathInfo.registrationTime << pathInfo.narSize;
if (GET_PROTOCOL_MINOR(conn.version) >= 16) {
conn.to
<< pathInfo.ultimate
<< pathInfo.sigs
<< renderContentAddress(pathInfo.ca);
}
conn.to
<< pathInfo.ultimate
<< pathInfo.sigs
<< renderContentAddress(pathInfo.ca);
}
}

17
src/libstore/worker-protocol.hh
View file

@ -9,7 +9,16 @@ namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
// This must remain 1.35 (Nix 2.18) forever in Lix, since the protocol has
// diverged in CppNix such that we cannot assign newer versions ourselves, the
// protocol is bad in design and implementation and Lix intends to replace it
// entirely.
#define PROTOCOL_VERSION (1 << 8 | 35)
// Nix 2.3 is protocol 1.21 (see RemoteStore::initConnection for client,
// processConnection for server).
#define MIN_SUPPORTED_MINOR_WORKER_PROTO_VERSION 21
#define MIN_SUPPORTED_WORKER_PROTO_VERSION (1 << 8 | MIN_SUPPORTED_MINOR_WORKER_PROTO_VERSION)
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)
@ -63,6 +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);
}
};
/**
@ -72,6 +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);
}
};
/**

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0
tests/unit/libstore/data/libstore/worker-protocol/valid-path-info-1.16.bin → tests/unit/libstore/data/libstore/worker-protocol/valid-path-info.bin
View file

11
tests/unit/libstore/protocol.hh
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())

63
tests/unit/libstore/worker-protocol.cc
View file

@ -18,9 +18,9 @@ struct WorkerProtoTest : VersionedProtoTest<WorkerProto, workerProtoDir>
{
/**
* For serializers that don't care about the minimum version, we
* used the oldest one: 1.0.
* have to use the minimum supported to not throw an assert.
*/
WorkerProto::Version defaultVersion = 1 << 8 | 0;
WorkerProto::Version defaultVersion = MIN_SUPPORTED_WORKER_PROTO_VERSION;
};
@ -331,9 +331,9 @@ VERSIONED_CHARACTERIZATION_TEST(
VERSIONED_CHARACTERIZATION_TEST(
WorkerProtoTest,
unkeyedValidPathInfo_1_15,
"unkeyed-valid-path-info-1.15",
1 << 8 | 15,
unkeyedValidPathInfo,
"unkeyed-valid-path-info",
defaultVersion,
(std::tuple<UnkeyedValidPathInfo, UnkeyedValidPathInfo> {
({
UnkeyedValidPathInfo info {
@ -363,56 +363,9 @@ VERSIONED_CHARACTERIZATION_TEST(
VERSIONED_CHARACTERIZATION_TEST(
WorkerProtoTest,
validPathInfo_1_15,
"valid-path-info-1.15",
1 << 8 | 15,
(std::tuple<ValidPathInfo, ValidPathInfo> {
({
ValidPathInfo info {
StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar",
},
UnkeyedValidPathInfo {
Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
},
};
info.registrationTime = 23423;
info.narSize = 34878;
info;
}),
({
ValidPathInfo info {
StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar",
},
UnkeyedValidPathInfo {
Hash::parseSRI("sha256-FePFYIlMuycIXPZbWi7LGEiMmZSX9FMbaQenWBzm1Sc="),
},
};
info.deriver = StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar.drv",
};
info.references = {
// other reference
StorePath {
"g1w7hyyyy1w7hy3qg1w7hy3qgqqqqy3q-foo",
},
// self reference
StorePath {
"g1w7hy3qg1w7hy3qg1w7hy3qg1w7hy3q-bar",
},
};
info.registrationTime = 23423;
info.narSize = 34878;
info;
}),
}))
VERSIONED_CHARACTERIZATION_TEST(
WorkerProtoTest,
validPathInfo_1_16,
"valid-path-info-1.16",
1 << 8 | 16,
validPathInfo,
"valid-path-info",
defaultVersion,
(std::tuple<ValidPathInfo, ValidPathInfo, ValidPathInfo> {
({
ValidPathInfo info {