1 files changed, 10 insertions, 1 deletions
diff --git a/src/resolve/resolved-dns-dnssec.h b/src/resolve/resolved-dns-dnssec.h
index 9ad20c8c69..d7aecbce13 100644
--- a/src/resolve/resolved-dns-dnssec.h
+++ b/src/resolve/resolved-dns-dnssec.h
@@ -32,7 +32,14 @@ enum DnssecMode {
         /* No DNSSEC validation is done */
         DNSSEC_NO,
 
-        /* Validate locally, if the server knows DO, but if not, don't. Don't trust the AD bit */
+        /* Validate locally, if the server knows DO, but if not,
+         * don't. Don't trust the AD bit. If the server doesn't do
+         * DNSSEC properly, downgrade to non-DNSSEC operation. Of
+         * course, we then are vulnerable to a downgrade attack, but
+         * that's life and what is configured. */
+        DNSSEC_DOWNGRADE_OK,
+
+        /* Insist on DNSSEC server support, and rather fail than downgrading. */
         DNSSEC_YES,
 
         _DNSSEC_MODE_MAX,
@@ -54,6 +61,8 @@ enum DnssecResult {
         DNSSEC_UNSIGNED,
         DNSSEC_FAILED_AUXILIARY,
         DNSSEC_NSEC_MISMATCH,
+        DNSSEC_INCOMPATIBLE_SERVER,
+
         _DNSSEC_RESULT_MAX,
         _DNSSEC_RESULT_INVALID = -1
 };