Experimental support for partial chain verification: if an intermediate

certificate is explicitly trusted (using -addtrust option to x509 utility
for example) the verification is sucessful even if the chain is not complete.

1 files changed, 9 insertions, 0 deletions

diff --git a/crypto/x509/x509_trs.c b/crypto/x509/x509_trs.c
index a6cb9c8b1b..3d7e06815c 100644
--- a/crypto/x509/x509_trs.c
+++ b/crypto/x509/x509_trs.c
@@ -114,6 +114,15 @@ int X509_check_trust(X509 *x, int id, int flags)
 	X509_TRUST *pt;
 	int idx;
 	if(id == -1) return 1;
+	/* We get this as a default value */
+	if (id == 0)
+		{
+		int rv;
+		rv = obj_trust(NID_anyExtendedKeyUsage, x, 0);
+		if (rv != X509_TRUST_UNTRUSTED)
+			return rv;
+		return trust_compat(NULL, x, 0);
+		}
 	idx = X509_TRUST_get_by_id(id);
 	if(idx == -1) return default_trust(id, x, flags);
 	pt = X509_TRUST_get0(idx);