1 files changed, 49 insertions, 0 deletions
diff --git a/src/test/crypto_init.cc b/src/test/crypto_init.cc
new file mode 100644
index 00000000..781175eb
--- /dev/null
+++ b/src/test/crypto_init.cc
@@ -0,0 +1,49 @@
+#include <errno.h>
+#include <time.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <vector>
+
+#include "include/types.h"
+#include "common/code_environment.h"
+#include "global/global_context.h"
+#include "global/global_init.h"
+#include "include/msgr.h"
+#include "gtest/gtest.h"
+#include "auth/Crypto.h"
+#include "common/ceph_crypto.h"
+
+#ifdef USE_NSS
+void *init_crypto(void *p) {
+  ceph::crypto::init(g_ceph_context);
+  return NULL;
+}
+
+// Tests for a race condition in libnss when calling crypto_init
+// multiple times simultaneously from different threads.
+TEST(CRYPTO_INIT, NSS_RACE) {
+  std::vector<const char*> args;
+  auto cct = global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT,
+                         CODE_ENVIRONMENT_UTILITY,
+                         CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+  // Most reliably reproduced with more threads than cores.
+  long n_thread = sysconf(_SC_NPROCESSORS_ONLN) * 2;
+  pthread_t *ts = (pthread_t*)malloc(n_thread * sizeof(pthread_t));
+  int i;
+  for (i = 0; i < n_thread; i++) {
+    pthread_create(&ts[i], NULL, init_crypto, NULL);
+  }
+  for (i = 0; i < n_thread; i++) {
+    int k;
+    void *p = (void*)&k;
+    pthread_join(ts[i], &p);
+  }
+  free(ts);
+}
+
+#endif
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}