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Fix --no-sandbox

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When sandboxing is disabled, we cannot put $TMPDIR underneath an
inaccessible directory.
This commit is contained in:
Eelco Dolstra 2024-05-14 14:12:08 +02:00
parent 58b7b3fd15
commit d54590fdf3
2 changed files with 12 additions and 4 deletions
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9
src/libstore/unix/build/local-derivation-goal.cc
View file

@ -503,9 +503,14 @@ void LocalDerivationGoal::startBuilder()
/* Create a temporary directory where the build will take /* Create a temporary directory where the build will take
place. */ place. */
auto parentTmpDir = createTempDir(settings.buildDir.get().value_or(""), "nix-build-" + std::string(drvPath.name()), false, false, 0700); tmpDir = createTempDir(settings.buildDir.get().value_or(""), "nix-build-" + std::string(drvPath.name()), false, false, 0700);
tmpDir = parentTmpDir + "/build"; if (useChroot) {
/* If sandboxing is enabled, put the actual TMPDIR underneath
an inaccessible root-owned directory, to prevent outside
access. */
tmpDir = tmpDir + "/build";
createDir(tmpDir, 0700); createDir(tmpDir, 0700);
}
chownToBuilder(tmpDir); chownToBuilder(tmpDir);
for (auto & [outputName, status] : initialOutputs) { for (auto & [outputName, status] : initialOutputs) {

5
tests/functional/check.sh
View file

@ -46,7 +46,10 @@ test_custom_build_dir() {
--no-out-link --keep-failed --option build-dir "$TEST_ROOT/custom-build-dir" 2> $TEST_ROOT/log || status=$? --no-out-link --keep-failed --option build-dir "$TEST_ROOT/custom-build-dir" 2> $TEST_ROOT/log || status=$?
[ "$status" = "100" ] [ "$status" = "100" ]
[[ 1 == "$(count "$customBuildDir/nix-build-"*)" ]] [[ 1 == "$(count "$customBuildDir/nix-build-"*)" ]]
local buildDir="$customBuildDir/nix-build-"*"/build" local buildDir="$customBuildDir/nix-build-"*""
if [[ -e $buildDir/build ]]; then
buildDir=$buildDir/build
fi
grep $checkBuildId $buildDir/checkBuildId grep $checkBuildId $buildDir/checkBuildId
} }
test_custom_build_dir test_custom_build_dir