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authorEelco Dolstra <edolstra@gmail.com>2018-02-05 18:08:30 +0100
committerEelco Dolstra <edolstra@gmail.com>2018-02-05 18:08:30 +0100
commitbb1d046f5c37a01ee85fc30d4602e8be8213eb84 (patch)
treecef64fac8b398fb9cf16ee619b190a5226ceeb92 /src/libstore
parent2175eee9fec07dea32e07471946d26a242a07760 (diff)
Allow substituters to be marked as trusted
This is needed by nixos-install, which uses the Nix store on the installation CD as a substituter. We don't want to disable signature checking entirely because substitutes from cache.nixos.org should still be checked. So now we can pas "local?trusted=1" to mark only the Nix store in /nix as not requiring signatures. Fixes #1819.
Diffstat (limited to 'src/libstore')
-rw-r--r--src/libstore/build.cc7
-rw-r--r--src/libstore/store-api.hh2
2 files changed, 7 insertions, 2 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 5540d57a8..5be7ce60d 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -3684,7 +3684,10 @@ void SubstitutionGoal::tryNext()
/* Bail out early if this substituter lacks a valid
signature. LocalStore::addToStore() also checks for this, but
only after we've downloaded the path. */
- if (worker.store.requireSigs && !info->checkSignatures(worker.store, worker.store.publicKeys)) {
+ if (worker.store.requireSigs
+ && !sub->isTrusted
+ && !info->checkSignatures(worker.store, worker.store.publicKeys))
+ {
printInfo(format("warning: substituter '%s' does not have a valid signature for path '%s'")
% sub->getUri() % storePath);
tryNext();
@@ -3752,7 +3755,7 @@ void SubstitutionGoal::tryToRun()
PushActivity pact(act.id);
copyStorePath(ref<Store>(sub), ref<Store>(worker.store.shared_from_this()),
- storePath, repair);
+ storePath, repair, sub->isTrusted ? NoCheckSigs : CheckSigs);
promise.set_value();
} catch (...) {
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 70f23e1fc..aa83c2ded 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -248,6 +248,8 @@ public:
const Setting<int> pathInfoCacheSize{this, 65536, "path-info-cache-size", "size of the in-memory store path information cache"};
+ const Setting<bool> isTrusted{this, false, "trusted", "whether paths from this store can be used as substitutes even when they lack trusted signatures"};
+
protected:
struct State