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gtls: properly retrieve certificate status

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Also print the revocation reason if appropriate.
This commit is contained in:
Alessandro Ghedini 2015-05-04 10:41:25 +02:00 committed by Daniel Stenberg
parent 86bc654532
commit a5e09e9eea
1 changed files with 92 additions and 4 deletions
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96
lib/vtls/gtls.c
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@ -897,10 +897,98 @@ gtls_connect_step3(struct connectdata *conn,
#ifdef HAS_OCSP
if(data->set.ssl.verifystatus) {
if(gnutls_ocsp_status_request_is_checked(session, 0) == 0) {
if(verify_status & GNUTLS_CERT_REVOKED)
infof(data, "\t server certificate was REVOKED\n");
else
infof(data, "\t server certificate status verification FAILED\n");
gnutls_datum_t status_request;
gnutls_ocsp_resp_t ocsp_resp;
gnutls_ocsp_cert_status_t status;
gnutls_x509_crl_reason_t reason;
rc = gnutls_ocsp_status_request_get(session, &status_request);
infof(data, "\t server certificate status verification FAILED\n");
if(rc == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE) {
failf(data, "No OCSP response received");
return CURLE_SSL_INVALIDCERTSTATUS;
}
if(rc < 0) {
failf(data, "Invalid OCSP response received");
return CURLE_SSL_INVALIDCERTSTATUS;
}
gnutls_ocsp_resp_init(&ocsp_resp);
rc = gnutls_ocsp_resp_import(ocsp_resp, &status_request);
if(rc < 0) {
failf(data, "Invalid OCSP response received");
return CURLE_SSL_INVALIDCERTSTATUS;
}
rc = gnutls_ocsp_resp_get_single(ocsp_resp, 0, NULL, NULL, NULL, NULL,
&status, NULL, NULL, NULL, &reason);
switch(status) {
case GNUTLS_OCSP_CERT_GOOD:
break;
case GNUTLS_OCSP_CERT_REVOKED: {
const char *crl_reason;
switch(reason) {
default:
case GNUTLS_X509_CRLREASON_UNSPECIFIED:
crl_reason = "unspecified reason";
break;
case GNUTLS_X509_CRLREASON_KEYCOMPROMISE:
crl_reason = "private key compromised";
break;
case GNUTLS_X509_CRLREASON_CACOMPROMISE:
crl_reason = "CA compromised";
break;
case GNUTLS_X509_CRLREASON_AFFILIATIONCHANGED:
crl_reason = "affiliation has changed";
break;
case GNUTLS_X509_CRLREASON_SUPERSEDED:
crl_reason = "certificate superseded";
break;
case GNUTLS_X509_CRLREASON_CESSATIONOFOPERATION:
crl_reason = "operation has ceased";
break;
case GNUTLS_X509_CRLREASON_CERTIFICATEHOLD:
crl_reason = "certificate is on hold";
break;
case GNUTLS_X509_CRLREASON_REMOVEFROMCRL:
crl_reason = "will be removed from delta CRL";
break;
case GNUTLS_X509_CRLREASON_PRIVILEGEWITHDRAWN:
crl_reason = "privilege withdrawn";
break;
case GNUTLS_X509_CRLREASON_AACOMPROMISE:
crl_reason = "AA compromised";
break;
}
failf(data, "Server certificate was revoked: %s", crl_reason);
break;
}
default:
case GNUTLS_OCSP_CERT_UNKNOWN:
failf(data, "Server certificate status is unknown");
break;
}
gnutls_ocsp_resp_deinit(ocsp_resp);
return CURLE_SSL_INVALIDCERTSTATUS;
}