Issue #1467 - Part 1: Set up conditional NSS-SQL builds.

- Adds buildconfig option --enable-nss-sqlstore
- Prefixes NSS dbinit with either sql: or dbm: depending on config
- Pre-initializes mozStorage when NSS-SQL storage is used to prevent
  an sqlite3_config race in NSS Init

old-configure.in

@@ -2169,6 +2169,7 @@ MOZ_SERVICES_HEALTHREPORT=1
 MOZ_SERVICES_SYNC=1
 MOZ_USERINFO=1
 NSS_DISABLE_DBM=
+NSS_SQLSTORE=
 MOZ_MAILNEWS=
 MOZ_MAILNEWS_OAUTH2=
 MOZ_LDAP_XPCOM=
@@ -2725,6 +2726,24 @@ fi
 
 AC_SUBST(NSS_DISABLE_DBM)
 
+dnl =========================================================
+dnl = NSS SQL storage format
+dnl =========================================================
+MOZ_ARG_ENABLE_BOOL(nss-sqlstore,
+[  --enable-nss-sqlstore Enable the us of SQL storage for NSS],
+    NSS_SQLSTORE=1,
+    NSS_SQLSTORE=)
+
+if test -n "$NSS_DISABLE_DBM" -a -z "$NSS_SQLSTORE"; then
+  AC_MSG_ERROR([DBM storage support is required if not using NSS SQL storage])
+fi
+
+if test -n "$NSS_SQLSTORE"; then
+  AC_DEFINE(NSS_SQLSTORE)
+fi
+
+AC_SUBST(NSS_SQLSTORE)
+
 dnl =========================================================
 dnl = Don't fold mailnews related comps into libXUL
 dnl =========================================================

security/certverifier/NSSCertDBTrustDomain.cpp

@@ -1102,7 +1102,12 @@ InitializeNSS(const nsACString& dir, bool readOnly, bool loadPKCS11Modules)
     flags |= NSS_INIT_NOMODDB;
   }
   nsAutoCString dbTypeAndDirectory;
+#ifdef NSS_SQLSTORE
+  // Not strictly necessary with current NSS versions, but can't hurt to be explicit.
+  dbTypeAndDirectory.Append("sql:");
+#else
   dbTypeAndDirectory.Append("dbm:");
+#endif
   dbTypeAndDirectory.Append(dir);
   return ::NSS_Initialize(dbTypeAndDirectory.get(), "", "", SECMOD_DB, flags);
 }

security/manager/ssl/nsNSSComponent.cpp

@@ -12,6 +12,9 @@
 #include "SharedSSLState.h"
 #include "cert.h"
 #include "certdb.h"
+#ifdef NSS_SQLSTORE
+#include "mozStorageCID.h"
+#endif
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Casting.h"
 #include "mozilla/Preferences.h"
@@ -1970,6 +1973,14 @@ nsNSSComponent::Init()
     return NS_ERROR_NOT_SAME_THREAD;
   }
 
+#ifdef NSS_SQLSTORE
+  // To avoid an sqlite3_config race in NSS init, we require the storage service to get initialized first.
+  nsCOMPtr<nsISupports> storageService = do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
+  if (!storageService) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+#endif
+
   nsresult rv = NS_OK;
 
   MOZ_LOG(gPIPNSSLog, LogLevel::Debug, ("Beginning NSS initialization\n"));