static int
cert_callback(gnutls_session_t session,
const gnutls_datum_t * req_ca_rdn, int nreqs,
const gnutls_pk_algorithm_t * sign_algos,
int sign_algos_length, gnutls_pcert_st ** pcert,
unsigned int *pcert_length, gnutls_privkey_t * pkey)
{
int ret;
gnutls_pcert_st *p;
gnutls_privkey_t lkey;
if (gnutls_certificate_client_get_request_status(session) == 0) {
fail("gnutls_certificate_client_get_request_status failed\n");
return -1;
}
p = gnutls_malloc(sizeof(*p));
if (p==NULL)
return -1;
if (g_pkey == NULL) {
ret = gnutls_pcert_import_x509_raw(p, &cli_cert, GNUTLS_X509_FMT_PEM, 0);
if (ret < 0)
return -1;
ret = gnutls_privkey_init(&lkey);
if (ret < 0)
return -1;
ret = gnutls_privkey_import_x509_raw(lkey, &cli_key, GNUTLS_X509_FMT_PEM, NULL, 0);
if (ret < 0)
return -1;
g_pcert = p;
g_pkey = lkey;
*pcert = p;
*pcert_length = 1;
*pkey = lkey;
} else {
*pcert = g_pcert;
*pcert_length = 1;
if (gnutls_certificate_client_get_request_status(session) == 0) {
fail("gnutls_certificate_client_get_request_status failed\n");
return -1;
}
*pkey = g_pkey;
}
return 0;
}
void print_cert_info(gnutls_session_t session, int verbose, int print_cert)
{
int flag;
if (verbose)
flag = GNUTLS_CRT_PRINT_FULL;
else
flag = GNUTLS_CRT_PRINT_COMPACT;
if (gnutls_certificate_client_get_request_status(session) != 0)
printf("- Server has requested a certificate.\n");
switch (gnutls_certificate_type_get(session)) {
case GNUTLS_CRT_X509:
print_x509_info(session, flag, print_cert);
break;
#ifdef ENABLE_OPENPGP
case GNUTLS_CRT_OPENPGP:
print_openpgp_info(session, flag, print_cert);
break;
#endif
default:
printf("Unknown type\n");
break;
}
}
void
print_cert_info (gnutls_session_t session, const char *hostname, int insecure)
{
if (gnutls_certificate_client_get_request_status (session) != 0)
printf ("- Server has requested a certificate.\n");
printf ("- Certificate type: ");
switch (gnutls_certificate_type_get (session))
{
case GNUTLS_CRT_UNKNOWN:
printf ("Unknown\n");
if (!insecure)
exit (1);
break;
case GNUTLS_CRT_X509:
printf ("X.509\n");
print_x509_info (session, hostname, insecure);
break;
#ifdef ENABLE_OPENPGP
case GNUTLS_CRT_OPENPGP:
printf ("OpenPGP\n");
print_openpgp_info (session, hostname, insecure);
break;
#endif
}
}
void print_cert_info_compact(gnutls_session_t session)
{
if (gnutls_certificate_client_get_request_status(session) != 0)
printf("- Server has requested a certificate.\n");
switch (gnutls_certificate_type_get(session)) {
case GNUTLS_CRT_X509:
print_x509_info_compact(session);
break;
#ifdef ENABLE_OPENPGP
case GNUTLS_CRT_OPENPGP:
print_openpgp_info_compact(session);
break;
#endif
default:
printf("Unknown type\n");
break;
}
}
void doit(void)
{
int exit_code = EXIT_SUCCESS;
int ret;
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_session_t server;
int sret = GNUTLS_E_AGAIN;
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
gnutls_session_t client;
int cret = GNUTLS_E_AGAIN;
gnutls_x509_crt_t *crts;
unsigned int crts_size;
unsigned i;
gnutls_x509_privkey_t pkey;
/* General init. */
global_init();
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(2);
ret = gnutls_x509_crt_list_import2(&crts, &crts_size, &server_cert, GNUTLS_X509_FMT_PEM,
GNUTLS_X509_CRT_LIST_FAIL_IF_UNSORTED);
if (ret < 0) {
fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
exit(1);
}
ret = gnutls_x509_privkey_init(&pkey);
if (ret < 0) {
fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
exit(1);
}
ret =
gnutls_x509_privkey_import(pkey, &server_key,
GNUTLS_X509_FMT_PEM);
if (ret < 0) {
fprintf(stderr, "error: %s\n", gnutls_strerror(ret));
exit(1);
}
/* Init server */
gnutls_certificate_allocate_credentials(&serverx509cred);
gnutls_certificate_set_x509_key(serverx509cred, crts, crts_size, pkey);
gnutls_x509_privkey_deinit(pkey);
for (i=0;i<crts_size;i++)
gnutls_x509_crt_deinit(crts[i]);
gnutls_free(crts);
gnutls_init(&server, GNUTLS_SERVER);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
gnutls_priority_set_direct(server,
"NORMAL:-CIPHER-ALL:+AES-128-GCM",
NULL);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_ptr(server, server);
gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
/* Init client */
/* Init client */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
if (ret < 0)
exit(1);
ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
if (ret < 0)
exit(1);
gnutls_certificate_set_retrieve_function2(clientx509cred, cert_callback);
ret = gnutls_init(&client, GNUTLS_CLIENT);
if (ret < 0)
exit(1);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
if (ret < 0)
exit(1);
gnutls_priority_set_direct(client, "NORMAL", NULL);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_ptr(client, client);
HANDSHAKE(client, server);
if (gnutls_certificate_get_ours(client) == NULL) {
fail("client certificate was not sent!\n");
exit(1);
}
/* check gnutls_certificate_get_ours() - server side */
{
const gnutls_datum_t *mcert;
gnutls_datum_t scert;
gnutls_x509_crt_t crt;
mcert = gnutls_certificate_get_ours(server);
if (mcert == NULL) {
fail("gnutls_certificate_get_ours(): failed\n");
exit(1);
}
gnutls_x509_crt_init(&crt);
ret = gnutls_x509_crt_import(crt, &server_cert, GNUTLS_X509_FMT_PEM);
if (ret < 0) {
fail("gnutls_x509_crt_import: %s\n", gnutls_strerror(ret));
exit(1);
}
ret = gnutls_x509_crt_export2(crt, GNUTLS_X509_FMT_DER, &scert);
if (ret < 0) {
fail("gnutls_x509_crt_export2: %s\n", gnutls_strerror(ret));
exit(1);
}
gnutls_x509_crt_deinit(crt);
if (scert.size != mcert->size || memcmp(scert.data, mcert->data, mcert->size) != 0) {
fail("gnutls_certificate_get_ours output doesn't match cert\n");
exit(1);
}
gnutls_free(scert.data);
}
/* check gnutls_certificate_get_ours() - client side */
{
const gnutls_datum_t *mcert;
gnutls_datum_t ccert;
gnutls_x509_crt_t crt;
mcert = gnutls_certificate_get_ours(client);
if (mcert == NULL) {
fail("gnutls_certificate_get_ours(): failed\n");
exit(1);
}
gnutls_x509_crt_init(&crt);
ret = gnutls_x509_crt_import(crt, &cli_cert, GNUTLS_X509_FMT_PEM);
if (ret < 0) {
fail("gnutls_x509_crt_import: %s\n", gnutls_strerror(ret));
exit(1);
}
ret = gnutls_x509_crt_export2(crt, GNUTLS_X509_FMT_DER, &ccert);
if (ret < 0) {
fail("gnutls_x509_crt_export2: %s\n", gnutls_strerror(ret));
exit(1);
}
gnutls_x509_crt_deinit(crt);
if (ccert.size != mcert->size || memcmp(ccert.data, mcert->data, mcert->size) != 0) {
fail("gnutls_certificate_get_ours output doesn't match cert\n");
exit(1);
}
gnutls_free(ccert.data);
}
/* check the number of certificates received */
{
unsigned cert_list_size = 0;
gnutls_typed_vdata_st data[2];
unsigned status;
memset(data, 0, sizeof(data));
/* check with wrong hostname */
data[0].type = GNUTLS_DT_DNS_HOSTNAME;
data[0].data = (void*)"localhost1";
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
gnutls_certificate_get_peers(client, &cert_list_size);
if (cert_list_size < 2) {
fprintf(stderr, "received a certificate list of %d!\n", cert_list_size);
exit(1);
}
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fprintf(stderr, "could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fprintf(stderr, "should not have accepted!\n");
exit(1);
}
/* check with wrong purpose */
data[0].type = GNUTLS_DT_DNS_HOSTNAME;
data[0].data = (void*)"localhost";
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_CLIENT;
gnutls_certificate_get_peers(client, &cert_list_size);
if (cert_list_size < 2) {
fprintf(stderr, "received a certificate list of %d!\n", cert_list_size);
exit(1);
}
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fprintf(stderr, "could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status == 0) {
fprintf(stderr, "should not have accepted!\n");
exit(1);
}
/* check with correct purpose */
data[0].type = GNUTLS_DT_DNS_HOSTNAME;
data[0].data = (void*)"localhost";
data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
ret = gnutls_certificate_verify_peers(client, data, 2, &status);
if (ret < 0) {
fprintf(stderr, "could not verify certificate: %s\n", gnutls_strerror(ret));
exit(1);
}
if (status != 0) {
fprintf(stderr, "could not verify certificate: %.4x\n", status);
exit(1);
}
}
if (gnutls_certificate_client_get_request_status(client) == 0) {
fail("gnutls_certificate_client_get_request_status - 2 failed\n");
exit(1);
}
gnutls_bye(client, GNUTLS_SHUT_RDWR);
gnutls_bye(server, GNUTLS_SHUT_RDWR);
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
gnutls_global_deinit();
if (debug > 0) {
if (exit_code == 0)
puts("Self-test successful");
else
puts("Self-test failed");
}
}
bool client_session::get_request_status ()
{
return RETWRAP (gnutls_certificate_client_get_request_status (s));
}
