diff options
| -rw-r--r-- | src/libexpr/primops.cc | 34 | ||||
| -rw-r--r-- | tests/restricted.sh | 2 |
2 files changed, 26 insertions, 10 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc index 975f0e830..5fe7da216 100644 --- a/src/libexpr/primops.cc +++ b/src/libexpr/primops.cc @@ -49,24 +49,38 @@ InvalidPathError::InvalidPathError(const Path & path) : void EvalState::realiseContext(const PathSet & context) { PathSet drvs; + for (auto & i : context) { std::pair<string, string> decoded = decodeContext(i); Path ctx = decoded.first; assert(store->isStorePath(ctx)); if (!store->isValidPath(ctx)) throw InvalidPathError(ctx); - if (!decoded.second.empty() && nix::isDerivation(ctx)) + if (!decoded.second.empty() && nix::isDerivation(ctx)) { drvs.insert(decoded.first + "!" + decoded.second); + + /* Add the output of this derivation to the allowed + paths. */ + if (allowedPaths) { + auto drv = store->derivationFromPath(decoded.first); + DerivationOutputs::iterator i = drv.outputs.find(decoded.second); + if (i == drv.outputs.end()) + throw Error("derivation '%s' does not have an output named '%s'", decoded.first, decoded.second); + allowedPaths->insert(i->second.path); + } + } } - if (!drvs.empty()) { - if (!settings.enableImportFromDerivation) - throw EvalError(format("attempted to realize '%1%' during evaluation but 'allow-import-from-derivation' is false") % *(drvs.begin())); - /* For performance, prefetch all substitute info. */ - PathSet willBuild, willSubstitute, unknown; - unsigned long long downloadSize, narSize; - store->queryMissing(drvs, willBuild, willSubstitute, unknown, downloadSize, narSize); - store->buildPaths(drvs); - } + + if (drvs.empty()) return; + + if (!settings.enableImportFromDerivation) + throw EvalError(format("attempted to realize '%1%' during evaluation but 'allow-import-from-derivation' is false") % *(drvs.begin())); + + /* For performance, prefetch all substitute info. */ + PathSet willBuild, willSubstitute, unknown; + unsigned long long downloadSize, narSize; + store->queryMissing(drvs, willBuild, willSubstitute, unknown, downloadSize, narSize); + store->buildPaths(drvs); } diff --git a/tests/restricted.sh b/tests/restricted.sh index 6c0392fac..0605383cc 100644 --- a/tests/restricted.sh +++ b/tests/restricted.sh @@ -36,3 +36,5 @@ ln -sfn $(pwd)/restricted.nix $TEST_ROOT/restricted.nix (! nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I $TEST_ROOT) (! nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I .) nix-instantiate --eval --restrict-eval $TEST_ROOT/restricted.nix -I $TEST_ROOT -I . + +[[ $(nix eval --raw --restrict-eval -I . '(builtins.readFile "${import ./simple.nix}/hello")') == 'Hello World!' ]] |