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/*
* Simple Client/Server connection test
*
* Based on OpenSSL example code.
* Copyright (C) 2019 vt@altlinux.org. All Rights Reserved.
*
* Contents licensed under the terms of the OpenSSL license
* See https://www.openssl.org/source/license.html for details
*/
#ifdef _MSC_VER
# pragma warning(push, 3)
# include <openssl/applink.c>
# pragma warning(pop)
#endif
#include "e_gost_err.h"
#include "gost_lcl.h"
#include <openssl/evp.h>
#include <openssl/ssl.h>
#include <openssl/bio.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <openssl/asn1.h>
#include <openssl/obj_mac.h>
#include <openssl/x509v3.h>
#include <openssl/ec.h>
#include <openssl/bn.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#ifdef __GNUC__
/* For X509_NAME_add_entry_by_txt */
# pragma GCC diagnostic ignored "-Wpointer-sign"
#endif
#define T(e) \
if (!(e)) { \
ERR_print_errors_fp(stderr); \
OpenSSLDie(__FILE__, __LINE__, #e); \
}
#define TE(e) \
if (!(e)) { \
ERR_print_errors_fp(stderr); \
fprintf(stderr, "Error at %s:%d %s\n", __FILE__, __LINE__, #e); \
return -1; \
}
#define cRED "\033[1;31m"
#define cDRED "\033[0;31m"
#define cGREEN "\033[1;32m"
#define cDGREEN "\033[0;32m"
#define cBLUE "\033[1;34m"
#define cDBLUE "\033[0;34m"
#define cNORM "\033[m"
#define TEST_ASSERT(e) {if ((test = (e))) \
printf(cRED " Test FAILED\n" cNORM); \
else \
printf(cGREEN " Test passed\n" cNORM);}
struct certkey {
EVP_PKEY *pkey;
X509 *cert;
};
static int verbose;
static const char *cipher_list;
static void err(int eval, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf(": %s\n", strerror(errno));
exit(eval);
}
/* Generate simple cert+key pair. Based on req.c */
static struct certkey certgen(const char *algname, const char *paramset)
{
/* Keygen. */
EVP_PKEY *tkey;
T(tkey = EVP_PKEY_new());
T(EVP_PKEY_set_type_str(tkey, algname, strlen(algname)));
EVP_PKEY_CTX *ctx;
T(ctx = EVP_PKEY_CTX_new(tkey, NULL));
T(EVP_PKEY_keygen_init(ctx));
if (paramset)
T(EVP_PKEY_CTX_ctrl_str(ctx, "paramset", paramset));
EVP_PKEY *pkey = NULL;
T((EVP_PKEY_keygen(ctx, &pkey)) == 1);
EVP_PKEY_CTX_free(ctx);
EVP_PKEY_free(tkey);
/* REQ. */
X509_REQ *req = NULL;
T(req = X509_REQ_new());
T(X509_REQ_set_version(req, 0L));
X509_NAME *name;
T(name = X509_NAME_new());
T(X509_NAME_add_entry_by_txt(name, "O", MBSTRING_ASC, (unsigned char *)"Test CA", -1, -1, 0));
T(X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC, (unsigned char *)"Test Key", -1, -1, 0));
T(X509_REQ_set_subject_name(req, name));
T(X509_REQ_set_pubkey(req, pkey));
X509_NAME_free(name);
/* Cert. */
X509 *x509ss = NULL;
T(x509ss = X509_new());
T(X509_set_version(x509ss, 2));
BIGNUM *brnd = BN_new();
T(BN_rand(brnd, 20 * 8 - 1, -1, 0));
T(BN_to_ASN1_INTEGER(brnd, X509_get_serialNumber(x509ss)));
T(X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)));
T(X509_gmtime_adj(X509_getm_notBefore(x509ss), 0));
T(X509_time_adj_ex(X509_getm_notAfter(x509ss), 1, 0, NULL));
T(X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)));
T(X509_set_pubkey(x509ss, X509_REQ_get0_pubkey(req)));
X509_REQ_free(req);
BN_free(brnd);
X509V3_CTX v3ctx;
X509V3_set_ctx_nodb(&v3ctx);
X509V3_set_ctx(&v3ctx, x509ss, x509ss, NULL, NULL, 0);
X509_EXTENSION *ext;
T(ext = X509V3_EXT_conf_nid(NULL, &v3ctx, NID_basic_constraints, "critical,CA:TRUE"));
T(X509_add_ext(x509ss, ext, 0));
X509_EXTENSION_free(ext);
T(ext = X509V3_EXT_conf_nid(NULL, &v3ctx, NID_subject_key_identifier, "hash"));
T(X509_add_ext(x509ss, ext, 1));
X509_EXTENSION_free(ext);
T(ext = X509V3_EXT_conf_nid(NULL, &v3ctx, NID_authority_key_identifier, "keyid:always,issuer"));
T(X509_add_ext(x509ss, ext, 2));
X509_EXTENSION_free(ext);
EVP_MD_CTX *mctx;
T(mctx = EVP_MD_CTX_new());
T(EVP_DigestSignInit(mctx, NULL, NULL, NULL, pkey));
T(X509_sign_ctx(x509ss, mctx));
EVP_MD_CTX_free(mctx);
#if 0
/* Print cert in text format. */
X509_print_fp(stdout, x509ss);
#endif
#if 0
/* Print cert in PEM format. */
BIO *out = BIO_new_fp(stdout, BIO_NOCLOSE | BIO_FP_TEXT);
PEM_write_bio_X509(out, x509ss);
BIO_free_all(out);
#endif
return (struct certkey){ .pkey = pkey, .cert = x509ss };
}
/* Non-blocking BIO test mechanic is based on sslapitest.c */
int test(const char *algname, const char *paramset)
{
int ret = 0;
printf(cBLUE "Test %s", algname);
if (paramset)
printf(cBLUE ":%s", paramset);
printf(cNORM "\n");
struct certkey ck;
ck = certgen(algname, paramset);
SSL_CTX *cctx, *sctx;
T(sctx = SSL_CTX_new(TLS_server_method()));
T(SSL_CTX_use_certificate(sctx, ck.cert));
T(SSL_CTX_use_PrivateKey(sctx, ck.pkey));
T(SSL_CTX_check_private_key(sctx));
T(cctx = SSL_CTX_new(TLS_client_method()));
/* create_ssl_objects */
SSL *serverssl, *clientssl;
T(serverssl = SSL_new(sctx));
T(clientssl = SSL_new(cctx));
BIO *s_to_c_bio, *c_to_s_bio;
T(s_to_c_bio = BIO_new(BIO_s_mem()));
T(c_to_s_bio = BIO_new(BIO_s_mem()));
/* Non-blocking IO. */
BIO_set_mem_eof_return(s_to_c_bio, -1);
BIO_set_mem_eof_return(c_to_s_bio, -1);
/* Transfer BIOs to SSL objects. */
SSL_set_bio(serverssl, c_to_s_bio, s_to_c_bio);
BIO_up_ref(s_to_c_bio);
BIO_up_ref(c_to_s_bio);
SSL_set_bio(clientssl, s_to_c_bio, c_to_s_bio);
c_to_s_bio = NULL;
c_to_s_bio = NULL;
/* create_ssl_connection */
int retc = -1, rets = -1, err;
do {
err = SSL_ERROR_WANT_WRITE;
while (retc <= 0 && err == SSL_ERROR_WANT_WRITE) {
retc = SSL_connect(clientssl);
if (retc <= 0)
err = SSL_get_error(clientssl, retc);
if (verbose)
printf("SSL_connect: %d %d\n", retc, err);
}
if (retc <= 0 && err != SSL_ERROR_WANT_READ) {
ERR_print_errors_fp(stderr);
OpenSSLDie(__FILE__, __LINE__, "SSL_connect");
}
err = SSL_ERROR_WANT_WRITE;
while (rets <= 0 && err == SSL_ERROR_WANT_WRITE) {
rets = SSL_accept(serverssl);
if (rets <= 0)
err = SSL_get_error(serverssl, rets);
if (verbose)
printf("SSL_accept: %d %d\n", rets, err);
}
if (rets <= 0 && err != SSL_ERROR_WANT_READ &&
err != SSL_ERROR_WANT_X509_LOOKUP) {
ERR_print_errors_fp(stderr);
OpenSSLDie(__FILE__, __LINE__, "SSL_accept");
}
} while (retc <=0 || rets <= 0);
/* Two SSL_read_ex should fail. */
unsigned char buf;
size_t readbytes;
T(!SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes));
T(!SSL_read_ex(clientssl, &buf, sizeof(buf), &readbytes));
/* Connect client to the server. */
T(SSL_do_handshake(clientssl) == 1);
printf("Protocol: %s\n", SSL_get_version(clientssl));
printf("Cipher: %s\n", SSL_get_cipher_name(clientssl));
if (verbose) {
SSL_SESSION *sess = SSL_get0_session(clientssl);
SSL_SESSION_print_fp(stdout, sess);
}
/* Transfer some data. */
int i;
for (i = 0; i < 16; i++) {
char pbuf[512], lbuf[512];
memset(pbuf, 'c' + i, sizeof(pbuf));
T(SSL_write(serverssl, pbuf, sizeof(pbuf)) == sizeof(pbuf));
T(SSL_read(clientssl, lbuf, sizeof(lbuf)) == sizeof(lbuf));
T(memcmp(pbuf, lbuf, sizeof(pbuf)) == 0);
memset(lbuf, 's' + i, sizeof(lbuf));
T(SSL_write(clientssl, lbuf, sizeof(lbuf)) == sizeof(lbuf));
T(SSL_read(serverssl, pbuf, sizeof(pbuf)) == sizeof(pbuf));
T(memcmp(pbuf, lbuf, sizeof(pbuf)) == 0);
}
SSL_shutdown(clientssl);
SSL_shutdown(serverssl);
SSL_free(serverssl);
SSL_free(clientssl);
SSL_CTX_free(sctx);
SSL_CTX_free(cctx);
/* Every responsible process should free this. */
X509_free(ck.cert);
EVP_PKEY_free(ck.pkey);
return ret;
}
int main(int argc, char **argv)
{
int ret = 0;
OPENSSL_add_all_algorithms_conf();
char *p;
if ((p = getenv("VERBOSE")))
verbose = atoi(p);
ret |= test("rsa", NULL);
cipher_list = "LEGACY-GOST2012-GOST8912-GOST8912";
ret |= test("gost2012_256", "A");
ret |= test("gost2012_256", "B");
ret |= test("gost2012_256", "C");
ret |= test("gost2012_256", "TCA");
ret |= test("gost2012_512", "A");
ret |= test("gost2012_512", "B");
ret |= test("gost2012_512", "C");
if (ret)
printf(cDRED "= Some tests FAILED!\n" cNORM);
else
printf(cDGREEN "= All tests passed!\n" cNORM);
return ret;
}
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