forked from lix-project/lix
Move evaluator-specific settings out of libstore
This commit is contained in:
parent
c1d445ecec
commit
1672bcd230
|
@ -310,14 +310,14 @@ EvalState::EvalState(const Strings & _searchPath, ref<Store> store)
|
||||||
static_assert(sizeof(Env) == 16, "environment must be 16 bytes");
|
static_assert(sizeof(Env) == 16, "environment must be 16 bytes");
|
||||||
|
|
||||||
/* Initialise the Nix expression search path. */
|
/* Initialise the Nix expression search path. */
|
||||||
if (!settings.pureEval) {
|
if (!evalSettings.pureEval) {
|
||||||
Strings paths = parseNixPath(getEnv("NIX_PATH", ""));
|
Strings paths = parseNixPath(getEnv("NIX_PATH", ""));
|
||||||
for (auto & i : _searchPath) addToSearchPath(i);
|
for (auto & i : _searchPath) addToSearchPath(i);
|
||||||
for (auto & i : paths) addToSearchPath(i);
|
for (auto & i : paths) addToSearchPath(i);
|
||||||
}
|
}
|
||||||
addToSearchPath("nix=" + canonPath(settings.nixDataDir + "/nix/corepkgs", true));
|
addToSearchPath("nix=" + canonPath(settings.nixDataDir + "/nix/corepkgs", true));
|
||||||
|
|
||||||
if (settings.restrictEval || settings.pureEval) {
|
if (evalSettings.restrictEval || evalSettings.pureEval) {
|
||||||
allowedPaths = PathSet();
|
allowedPaths = PathSet();
|
||||||
|
|
||||||
for (auto & i : searchPath) {
|
for (auto & i : searchPath) {
|
||||||
|
@ -387,13 +387,13 @@ Path EvalState::checkSourcePath(const Path & path_)
|
||||||
|
|
||||||
void EvalState::checkURI(const std::string & uri)
|
void EvalState::checkURI(const std::string & uri)
|
||||||
{
|
{
|
||||||
if (!settings.restrictEval) return;
|
if (!evalSettings.restrictEval) return;
|
||||||
|
|
||||||
/* 'uri' should be equal to a prefix, or in a subdirectory of a
|
/* 'uri' should be equal to a prefix, or in a subdirectory of a
|
||||||
prefix. Thus, the prefix https://github.co does not permit
|
prefix. Thus, the prefix https://github.co does not permit
|
||||||
access to https://github.com. Note: this allows 'http://' and
|
access to https://github.com. Note: this allows 'http://' and
|
||||||
'https://' as prefixes for any http/https URI. */
|
'https://' as prefixes for any http/https URI. */
|
||||||
for (auto & prefix : settings.allowedUris.get())
|
for (auto & prefix : evalSettings.allowedUris.get())
|
||||||
if (uri == prefix ||
|
if (uri == prefix ||
|
||||||
(uri.size() > prefix.size()
|
(uri.size() > prefix.size()
|
||||||
&& prefix.size() > 0
|
&& prefix.size() > 0
|
||||||
|
@ -1898,4 +1898,9 @@ std::ostream & operator << (std::ostream & str, const ExternalValueBase & v) {
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
EvalSettings evalSettings;
|
||||||
|
|
||||||
|
static GlobalConfig::Register r1(&evalSettings);
|
||||||
|
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -5,6 +5,7 @@
|
||||||
#include "nixexpr.hh"
|
#include "nixexpr.hh"
|
||||||
#include "symbol-table.hh"
|
#include "symbol-table.hh"
|
||||||
#include "hash.hh"
|
#include "hash.hh"
|
||||||
|
#include "config.hh"
|
||||||
|
|
||||||
#include <map>
|
#include <map>
|
||||||
#include <unordered_map>
|
#include <unordered_map>
|
||||||
|
@ -320,4 +321,25 @@ struct InvalidPathError : EvalError
|
||||||
#endif
|
#endif
|
||||||
};
|
};
|
||||||
|
|
||||||
|
struct EvalSettings : Config
|
||||||
|
{
|
||||||
|
Setting<bool> enableNativeCode{this, false, "allow-unsafe-native-code-during-evaluation",
|
||||||
|
"Whether builtin functions that allow executing native code should be enabled."};
|
||||||
|
|
||||||
|
Setting<bool> restrictEval{this, false, "restrict-eval",
|
||||||
|
"Whether to restrict file system access to paths in $NIX_PATH, "
|
||||||
|
"and network access to the URI prefixes listed in 'allowed-uris'."};
|
||||||
|
|
||||||
|
Setting<bool> pureEval{this, false, "pure-eval",
|
||||||
|
"Whether to restrict file system and network access to files specified by cryptographic hash."};
|
||||||
|
|
||||||
|
Setting<bool> enableImportFromDerivation{this, true, "allow-import-from-derivation",
|
||||||
|
"Whether the evaluator allows importing the result of a derivation."};
|
||||||
|
|
||||||
|
Setting<Strings> allowedUris{this, {}, "allowed-uris",
|
||||||
|
"Prefixes of URIs that builtin functions such as fetchurl and fetchGit are allowed to fetch."};
|
||||||
|
};
|
||||||
|
|
||||||
|
extern EvalSettings evalSettings;
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
@ -73,7 +73,7 @@ void EvalState::realiseContext(const PathSet & context)
|
||||||
|
|
||||||
if (drvs.empty()) return;
|
if (drvs.empty()) return;
|
||||||
|
|
||||||
if (!settings.enableImportFromDerivation)
|
if (!evalSettings.enableImportFromDerivation)
|
||||||
throw EvalError(format("attempted to realize '%1%' during evaluation but 'allow-import-from-derivation' is false") % *(drvs.begin()));
|
throw EvalError(format("attempted to realize '%1%' during evaluation but 'allow-import-from-derivation' is false") % *(drvs.begin()));
|
||||||
|
|
||||||
/* For performance, prefetch all substitute info. */
|
/* For performance, prefetch all substitute info. */
|
||||||
|
@ -464,7 +464,7 @@ static void prim_tryEval(EvalState & state, const Pos & pos, Value * * args, Val
|
||||||
static void prim_getEnv(EvalState & state, const Pos & pos, Value * * args, Value & v)
|
static void prim_getEnv(EvalState & state, const Pos & pos, Value * * args, Value & v)
|
||||||
{
|
{
|
||||||
string name = state.forceStringNoCtx(*args[0], pos);
|
string name = state.forceStringNoCtx(*args[0], pos);
|
||||||
mkString(v, settings.restrictEval || settings.pureEval ? "" : getEnv(name));
|
mkString(v, evalSettings.restrictEval || evalSettings.pureEval ? "" : getEnv(name));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
@ -1031,7 +1031,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
|
||||||
static void addPath(EvalState & state, const Pos & pos, const string & name, const Path & path_,
|
static void addPath(EvalState & state, const Pos & pos, const string & name, const Path & path_,
|
||||||
Value * filterFun, bool recursive, const Hash & expectedHash, Value & v)
|
Value * filterFun, bool recursive, const Hash & expectedHash, Value & v)
|
||||||
{
|
{
|
||||||
const auto path = settings.pureEval && expectedHash ?
|
const auto path = evalSettings.pureEval && expectedHash ?
|
||||||
path_ :
|
path_ :
|
||||||
state.checkSourcePath(path_);
|
state.checkSourcePath(path_);
|
||||||
PathFilter filter = filterFun ? ([&](const Path & path) {
|
PathFilter filter = filterFun ? ([&](const Path & path) {
|
||||||
|
@ -2056,7 +2056,7 @@ void fetch(EvalState & state, const Pos & pos, Value * * args, Value & v,
|
||||||
|
|
||||||
state.checkURI(url);
|
state.checkURI(url);
|
||||||
|
|
||||||
if (settings.pureEval && !expectedHash)
|
if (evalSettings.pureEval && !expectedHash)
|
||||||
throw Error("in pure evaluation mode, '%s' requires a 'sha256' argument", who);
|
throw Error("in pure evaluation mode, '%s' requires a 'sha256' argument", who);
|
||||||
|
|
||||||
Path res = getDownloader()->downloadCached(state.store, url, unpack, name, expectedHash);
|
Path res = getDownloader()->downloadCached(state.store, url, unpack, name, expectedHash);
|
||||||
|
@ -2124,12 +2124,12 @@ void EvalState::createBaseEnv()
|
||||||
addConstant(name, v);
|
addConstant(name, v);
|
||||||
};
|
};
|
||||||
|
|
||||||
if (!settings.pureEval) {
|
if (!evalSettings.pureEval) {
|
||||||
mkInt(v, time(0));
|
mkInt(v, time(0));
|
||||||
addConstant("__currentTime", v);
|
addConstant("__currentTime", v);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!settings.pureEval) {
|
if (!evalSettings.pureEval) {
|
||||||
mkString(v, settings.thisSystem);
|
mkString(v, settings.thisSystem);
|
||||||
addConstant("__currentSystem", v);
|
addConstant("__currentSystem", v);
|
||||||
}
|
}
|
||||||
|
@ -2154,7 +2154,7 @@ void EvalState::createBaseEnv()
|
||||||
mkApp(v, *vScopedImport, *v2);
|
mkApp(v, *vScopedImport, *v2);
|
||||||
forceValue(v);
|
forceValue(v);
|
||||||
addConstant("import", v);
|
addConstant("import", v);
|
||||||
if (settings.enableNativeCode) {
|
if (evalSettings.enableNativeCode) {
|
||||||
addPrimOp("__importNative", 2, prim_importNative);
|
addPrimOp("__importNative", 2, prim_importNative);
|
||||||
addPrimOp("__exec", 1, prim_exec);
|
addPrimOp("__exec", 1, prim_exec);
|
||||||
}
|
}
|
||||||
|
@ -2181,7 +2181,7 @@ void EvalState::createBaseEnv()
|
||||||
|
|
||||||
// Paths
|
// Paths
|
||||||
addPrimOp("__toPath", 1, prim_toPath);
|
addPrimOp("__toPath", 1, prim_toPath);
|
||||||
if (settings.pureEval)
|
if (evalSettings.pureEval)
|
||||||
addPurityError("__storePath");
|
addPurityError("__storePath");
|
||||||
else
|
else
|
||||||
addPrimOp("__storePath", 1, prim_storePath);
|
addPrimOp("__storePath", 1, prim_storePath);
|
||||||
|
|
|
@ -28,7 +28,7 @@ GitInfo exportGit(ref<Store> store, const std::string & uri,
|
||||||
std::experimental::optional<std::string> ref, std::string rev,
|
std::experimental::optional<std::string> ref, std::string rev,
|
||||||
const std::string & name)
|
const std::string & name)
|
||||||
{
|
{
|
||||||
if (settings.pureEval && rev == "")
|
if (evalSettings.pureEval && rev == "")
|
||||||
throw Error("in pure evaluation mode, 'fetchGit' requires a Git revision");
|
throw Error("in pure evaluation mode, 'fetchGit' requires a Git revision");
|
||||||
|
|
||||||
if (!ref && rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.git")) {
|
if (!ref && rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.git")) {
|
||||||
|
|
|
@ -27,7 +27,7 @@ std::regex commitHashRegex("^[0-9a-fA-F]{40}$");
|
||||||
HgInfo exportMercurial(ref<Store> store, const std::string & uri,
|
HgInfo exportMercurial(ref<Store> store, const std::string & uri,
|
||||||
std::string rev, const std::string & name)
|
std::string rev, const std::string & name)
|
||||||
{
|
{
|
||||||
if (settings.pureEval && rev == "")
|
if (evalSettings.pureEval && rev == "")
|
||||||
throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision");
|
throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision");
|
||||||
|
|
||||||
if (rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.hg")) {
|
if (rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.hg")) {
|
||||||
|
|
|
@ -193,9 +193,6 @@ public:
|
||||||
Setting<bool> showTrace{this, false, "show-trace",
|
Setting<bool> showTrace{this, false, "show-trace",
|
||||||
"Whether to show a stack trace on evaluation errors."};
|
"Whether to show a stack trace on evaluation errors."};
|
||||||
|
|
||||||
Setting<bool> enableNativeCode{this, false, "allow-unsafe-native-code-during-evaluation",
|
|
||||||
"Whether builtin functions that allow executing native code should be enabled."};
|
|
||||||
|
|
||||||
Setting<SandboxMode> sandboxMode{this, smDisabled, "sandbox",
|
Setting<SandboxMode> sandboxMode{this, smDisabled, "sandbox",
|
||||||
"Whether to enable sandboxed builds. Can be \"true\", \"false\" or \"relaxed\".",
|
"Whether to enable sandboxed builds. Can be \"true\", \"false\" or \"relaxed\".",
|
||||||
{"build-use-chroot", "build-use-sandbox"}};
|
{"build-use-chroot", "build-use-sandbox"}};
|
||||||
|
@ -208,13 +205,6 @@ public:
|
||||||
"Additional paths to make available inside the build sandbox.",
|
"Additional paths to make available inside the build sandbox.",
|
||||||
{"build-extra-chroot-dirs", "build-extra-sandbox-paths"}};
|
{"build-extra-chroot-dirs", "build-extra-sandbox-paths"}};
|
||||||
|
|
||||||
Setting<bool> restrictEval{this, false, "restrict-eval",
|
|
||||||
"Whether to restrict file system access to paths in $NIX_PATH, "
|
|
||||||
"and network access to the URI prefixes listed in 'allowed-uris'."};
|
|
||||||
|
|
||||||
Setting<bool> pureEval{this, false, "pure-eval",
|
|
||||||
"Whether to restrict file system and network access to files specified by cryptographic hash."};
|
|
||||||
|
|
||||||
Setting<size_t> buildRepeat{this, 0, "repeat",
|
Setting<size_t> buildRepeat{this, 0, "repeat",
|
||||||
"The number of times to repeat a build in order to verify determinism.",
|
"The number of times to repeat a build in order to verify determinism.",
|
||||||
{"build-repeat"}};
|
{"build-repeat"}};
|
||||||
|
@ -319,9 +309,6 @@ public:
|
||||||
/* Path to the SSL CA file used */
|
/* Path to the SSL CA file used */
|
||||||
Path caFile;
|
Path caFile;
|
||||||
|
|
||||||
Setting<bool> enableImportFromDerivation{this, true, "allow-import-from-derivation",
|
|
||||||
"Whether the evaluator allows importing the result of a derivation."};
|
|
||||||
|
|
||||||
#if __linux__
|
#if __linux__
|
||||||
Setting<bool> filterSyscalls{this, true, "filter-syscalls",
|
Setting<bool> filterSyscalls{this, true, "filter-syscalls",
|
||||||
"Whether to prevent certain dangerous system calls, such as "
|
"Whether to prevent certain dangerous system calls, such as "
|
||||||
|
@ -343,9 +330,6 @@ public:
|
||||||
Setting<uint64_t> maxFree{this, std::numeric_limits<uint64_t>::max(), "max-free",
|
Setting<uint64_t> maxFree{this, std::numeric_limits<uint64_t>::max(), "max-free",
|
||||||
"Stop deleting garbage when free disk space is above the specified amount."};
|
"Stop deleting garbage when free disk space is above the specified amount."};
|
||||||
|
|
||||||
Setting<Strings> allowedUris{this, {}, "allowed-uris",
|
|
||||||
"Prefixes of URIs that builtin functions such as fetchurl and fetchGit are allowed to fetch."};
|
|
||||||
|
|
||||||
Setting<Paths> pluginFiles{this, {}, "plugin-files",
|
Setting<Paths> pluginFiles{this, {}, "plugin-files",
|
||||||
"Plugins to dynamically load at nix initialization time."};
|
"Plugins to dynamically load at nix initialization time."};
|
||||||
};
|
};
|
||||||
|
|
|
@ -46,7 +46,7 @@ struct CmdUpgradeNix : StoreCommand
|
||||||
|
|
||||||
void run(ref<Store> store) override
|
void run(ref<Store> store) override
|
||||||
{
|
{
|
||||||
settings.pureEval = true;
|
evalSettings.pureEval = true;
|
||||||
|
|
||||||
if (profileDir == "")
|
if (profileDir == "")
|
||||||
profileDir = getProfileDir(store);
|
profileDir = getProfileDir(store);
|
||||||
|
|
Loading…
Reference in a new issue