1
0
Fork 0
it-infra/nixbld-etc-nixos/nix-networked-derivations.diff

85 lines
2.9 KiB
Diff
Raw Normal View History

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 53a0958a..16a98aec 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -809,9 +809,16 @@ private:
/* Whether this is a fixed-output derivation. */
bool fixedOutput;
+ bool networked;
+
/* Whether to run the build in a private network namespace. */
bool privateNetwork = false;
+ bool allowNetwork()
+ {
+ return fixedOutput || networked;
+ }
+
typedef void (DerivationGoal::*GoalState)();
GoalState state;
@@ -1179,6 +1186,8 @@ void DerivationGoal::haveDerivation()
{
trace("have derivation");
+ fixedOutput = drv->isFixedOutput();
+
retrySubstitution = false;
for (auto & i : drv->outputs)
@@ -1195,6 +1204,8 @@ void DerivationGoal::haveDerivation()
parsedDrv = std::make_unique<ParsedDerivation>(drvPath, *drv);
+ networked = parsedDrv->getBoolAttr("__networked");
+
/* We are first going to try to create the invalid output paths
through substitutes. If that doesn't work, we'll build
them. */
@@ -1987,7 +1998,7 @@ void DerivationGoal::startBuilder()
else if (settings.sandboxMode == smDisabled)
useChroot = false;
else if (settings.sandboxMode == smRelaxed)
- useChroot = !fixedOutput && !noChroot;
+ useChroot = !allowNetwork() && !noChroot;
}
if (worker.store.storeDir != worker.store.realStoreDir) {
@@ -2153,7 +2164,7 @@ void DerivationGoal::startBuilder()
"nogroup:x:65534:\n") % sandboxGid).str());
/* Create /etc/hosts with localhost entry. */
- if (!fixedOutput)
+ if (!allowNetwork())
writeFile(chrootRootDir + "/etc/hosts", "127.0.0.1 localhost\n::1 localhost\n");
/* Make the closure of the inputs available in the chroot,
@@ -2361,7 +2372,7 @@ void DerivationGoal::startBuilder()
us.
*/
- if (!fixedOutput)
+ if (!allowNetwork())
privateNetwork = true;
userNamespaceSync.create();
@@ -2573,7 +2584,7 @@ void DerivationGoal::initEnv()
to the builder is generally impure, but the output of
fixed-output derivations is by definition pure (since we
already know the cryptographic hash of the output). */
- if (fixedOutput) {
+ if (allowNetwork()) {
for (auto & i : parsedDrv->getStringsAttr("impureEnvVars").value_or(Strings()))
env[i] = getEnv(i).value_or("");
}
@@ -3184,7 +3195,7 @@ void DerivationGoal::runChild()
/* Fixed-output derivations typically need to access the
network, so give them access to /etc/resolv.conf and so
on. */
- if (fixedOutput) {
+ if (allowNetwork()) {
ss.push_back("/etc/resolv.conf");
// Only use nss functions to resolve hosts and