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authorJeremy Harris <jgh146exb@wizmail.org>2018-10-08 00:12:08 +0100
committerJeremy Harris <jgh146exb@wizmail.org>2018-10-08 00:13:34 +0100
commit184384c323338c577cf3da314b3d0cd94b372d8e (patch)
tree73c5204ba1d8d734f1325a1721ff25fb082011cb /src
parent43d1f6cd753b9104d58a48e0a8f9afca8ddd74b2 (diff)
Debug: output GnuTLS verbose reason for certificate verify refusal
Diffstat (limited to 'src')
-rw-r--r--src/src/tls-gnu.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/src/tls-gnu.c b/src/src/tls-gnu.c
index 1430f2f3c..86d005d68 100644
--- a/src/src/tls-gnu.c
+++ b/src/src/tls-gnu.c
@@ -39,6 +39,7 @@ require current GnuTLS, then we'll drop support for the ancient libraries).
#include <gnutls/x509.h>
/* man-page is incorrect, gnutls_rnd() is not in gnutls.h: */
#include <gnutls/crypto.h>
+
/* needed to disable PKCS11 autoload unless requested */
#if GNUTLS_VERSION_NUMBER >= 0x020c00
# include <gnutls/pkcs11.h>
@@ -60,6 +61,9 @@ require current GnuTLS, then we'll drop support for the ancient libraries).
#if GNUTLS_VERSION_NUMBER >= 0x030014
# define SUPPORT_SYSDEFAULT_CABUNDLE
#endif
+#if GNUTLS_VERSION_NUMBER >= 0x030104
+# define GNUTLS_CERT_VFY_STATUS_PRINT
+#endif
#if GNUTLS_VERSION_NUMBER >= 0x030109
# define SUPPORT_CORK
#endif
@@ -1743,8 +1747,24 @@ if (rc < 0 || verify & (GNUTLS_CERT_INVALID|GNUTLS_CERT_REVOKED))
{
state->peer_cert_verified = FALSE;
if (!*errstr)
+ {
+#ifdef GNUTLS_CERT_VFY_STATUS_PRINT
+ DEBUG(D_tls)
+ {
+ gnutls_datum_t txt;
+
+ if (gnutls_certificate_verification_status_print(verify,
+ gnutls_certificate_type_get(state->session), &txt, 0)
+ == GNUTLS_E_SUCCESS)
+ {
+ debug_printf("%s\n", txt.data);
+ gnutls_free(txt.data);
+ }
+ }
+#endif
*errstr = verify & GNUTLS_CERT_REVOKED
? US"certificate revoked" : US"certificate invalid";
+ }
DEBUG(D_tls)
debug_printf("TLS certificate verification failed (%s): peerdn=\"%s\"\n",