ngx_int_t
ngx_ssl_stapling(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *file,
ngx_str_t *responder, ngx_uint_t verify)
{
X509 *cert;
for (cert = SSL_CTX_get_ex_data(ssl->ctx, ngx_ssl_certificate_index);
cert;
cert = X509_get_ex_data(cert, ngx_ssl_next_certificate_index))
{
if (ngx_ssl_stapling_certificate(cf, ssl, cert, file, responder, verify)
!= NGX_OK)
{
return NGX_ERROR;
}
}
SSL_CTX_set_tlsext_status_cb(ssl->ctx, ngx_ssl_certificate_status_callback);
return NGX_OK;
}
static int test_tlsext_status_type(void)
{
SSL_CTX *cctx = NULL, *sctx = NULL;
SSL *clientssl = NULL, *serverssl = NULL;
int testresult = 0;
STACK_OF(OCSP_RESPID) *ids = NULL;
OCSP_RESPID *id = NULL;
BIO *certbio = NULL;
if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
&cctx, cert, privkey)) {
printf("Unable to create SSL_CTX pair\n");
return 0;
}
if (SSL_CTX_get_tlsext_status_type(cctx) != -1) {
printf("Unexpected initial value for "
"SSL_CTX_get_tlsext_status_type()\n");
goto end;
}
/* First just do various checks getting and setting tlsext_status_type */
clientssl = SSL_new(cctx);
if (SSL_get_tlsext_status_type(clientssl) != -1) {
printf("Unexpected initial value for SSL_get_tlsext_status_type()\n");
goto end;
}
if (!SSL_set_tlsext_status_type(clientssl, TLSEXT_STATUSTYPE_ocsp)) {
printf("Unexpected fail for SSL_set_tlsext_status_type()\n");
goto end;
}
if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp) {
printf("Unexpected result for SSL_get_tlsext_status_type()\n");
goto end;
}
SSL_free(clientssl);
clientssl = NULL;
if (!SSL_CTX_set_tlsext_status_type(cctx, TLSEXT_STATUSTYPE_ocsp)) {
printf("Unexpected fail for SSL_CTX_set_tlsext_status_type()\n");
goto end;
}
if (SSL_CTX_get_tlsext_status_type(cctx) != TLSEXT_STATUSTYPE_ocsp) {
printf("Unexpected result for SSL_CTX_get_tlsext_status_type()\n");
goto end;
}
clientssl = SSL_new(cctx);
if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp) {
printf("Unexpected result for SSL_get_tlsext_status_type() (test 2)\n");
goto end;
}
SSL_free(clientssl);
clientssl = NULL;
/*
* Now actually do a handshake and check OCSP information is exchanged and
* the callbacks get called
*/
SSL_CTX_set_tlsext_status_cb(cctx, ocsp_client_cb);
SSL_CTX_set_tlsext_status_arg(cctx, &cdummyarg);
SSL_CTX_set_tlsext_status_cb(sctx, ocsp_server_cb);
SSL_CTX_set_tlsext_status_arg(sctx, &cdummyarg);
if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
printf("Unable to create SSL objects\n");
goto end;
}
if (!create_ssl_connection(serverssl, clientssl)) {
printf("Unable to create SSL connection\n");
goto end;
}
if (!ocsp_client_called || !ocsp_server_called) {
printf("OCSP callbacks not called\n");
goto end;
}
SSL_free(serverssl);
SSL_free(clientssl);
serverssl = NULL;
clientssl = NULL;
/* Try again but this time force the server side callback to fail */
ocsp_client_called = 0;
ocsp_server_called = 0;
cdummyarg = 0;
if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
printf("Unable to create SSL objects\n");
goto end;
}
/* This should fail because the callback will fail */
if (create_ssl_connection(serverssl, clientssl)) {
printf("Unexpected success creating the connection\n");
goto end;
}
if (ocsp_client_called || ocsp_server_called) {
printf("OCSP callbacks successfully called unexpectedly\n");
goto end;
}
SSL_free(serverssl);
SSL_free(clientssl);
serverssl = NULL;
clientssl = NULL;
/*
* This time we'll get the client to send an OCSP_RESPID that it will
* accept.
*/
ocsp_client_called = 0;
ocsp_server_called = 0;
cdummyarg = 2;
if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
printf("Unable to create SSL objects\n");
goto end;
}
/*
* We'll just use any old cert for this test - it doesn't have to be an OCSP
* specific one. We'll use the server cert.
*/
certbio = BIO_new_file(cert, "r");
if (certbio == NULL) {
printf("Can't load the certificate file\n");
goto end;
}
id = OCSP_RESPID_new();
ids = sk_OCSP_RESPID_new_null();
ocspcert = PEM_read_bio_X509(certbio, NULL, NULL, NULL);
if (id == NULL || ids == NULL || ocspcert == NULL
|| !OCSP_RESPID_set_by_key(id, ocspcert)
|| !sk_OCSP_RESPID_push(ids, id)) {
printf("Unable to set OCSP_RESPIDs\n");
goto end;
}
id = NULL;
SSL_set_tlsext_status_ids(clientssl, ids);
/* Control has been transferred */
ids = NULL;
BIO_free(certbio);
certbio = NULL;
if (!create_ssl_connection(serverssl, clientssl)) {
printf("Unable to create SSL connection\n");
goto end;
}
if (!ocsp_client_called || !ocsp_server_called) {
printf("OCSP callbacks not called\n");
goto end;
}
testresult = 1;
end:
SSL_free(serverssl);
SSL_free(clientssl);
SSL_CTX_free(sctx);
SSL_CTX_free(cctx);
sk_OCSP_RESPID_pop_free(ids, OCSP_RESPID_free);
OCSP_RESPID_free(id);
BIO_free(certbio);
X509_free(ocspcert);
ocspcert = NULL;
return testresult;
}
ngx_int_t
ngx_ssl_stapling(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *file,
ngx_str_t *responder, ngx_uint_t verify)
{
ngx_int_t rc;
ngx_pool_cleanup_t *cln;
ngx_ssl_stapling_t *staple;
staple = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_stapling_t));
if (staple == NULL) {
return NGX_ERROR;
}
cln = ngx_pool_cleanup_add(cf->pool, 0);
if (cln == NULL) {
return NGX_ERROR;
}
cln->handler = ngx_ssl_stapling_cleanup;
cln->data = staple;
if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_stapling_index, staple)
== 0)
{
ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
"SSL_CTX_set_ex_data() failed");
return NGX_ERROR;
}
staple->ssl_ctx = ssl->ctx;
staple->timeout = 60000;
staple->verify = verify;
if (file->len) {
/* use OCSP response from the file */
if (ngx_ssl_stapling_file(cf, ssl, file) != NGX_OK) {
return NGX_ERROR;
}
goto done;
}
rc = ngx_ssl_stapling_issuer(cf, ssl);
if (rc == NGX_DECLINED) {
return NGX_OK;
}
if (rc != NGX_OK) {
return NGX_ERROR;
}
rc = ngx_ssl_stapling_responder(cf, ssl, responder);
if (rc == NGX_DECLINED) {
return NGX_OK;
}
if (rc != NGX_OK) {
return NGX_ERROR;
}
done:
SSL_CTX_set_tlsext_status_cb(ssl->ctx, ngx_ssl_certificate_status_callback);
SSL_CTX_set_tlsext_status_arg(ssl->ctx, staple);
return NGX_OK;
}
int
tls_connect_fds(struct tls *ctx, int fd_read, int fd_write,
const char *servername)
{
union tls_addr addrbuf;
int rv = -1;
if ((ctx->flags & TLS_CLIENT) == 0) {
tls_set_errorx(ctx, "not a client context");
goto err;
}
if (fd_read < 0 || fd_write < 0) {
tls_set_errorx(ctx, "invalid file descriptors");
goto err;
}
if (servername != NULL) {
if ((ctx->servername = strdup(servername)) == NULL) {
tls_set_errorx(ctx, "out of memory");
goto err;
}
}
if ((ctx->ssl_ctx = SSL_CTX_new(SSLv23_client_method())) == NULL) {
tls_set_errorx(ctx, "ssl context failure");
goto err;
}
if (tls_configure_ssl(ctx) != 0)
goto err;
if (tls_configure_keypair(ctx, ctx->ssl_ctx, ctx->config->keypair, 0) != 0)
goto err;
if (ctx->config->verify_name) {
if (servername == NULL) {
tls_set_errorx(ctx, "server name not specified");
goto err;
}
}
if (ctx->config->verify_cert &&
(tls_configure_ssl_verify(ctx, SSL_VERIFY_PEER) == -1))
goto err;
if (SSL_CTX_set_tlsext_status_cb(ctx->ssl_ctx, tls_ocsp_verify_callback) != 1) {
tls_set_errorx(ctx, "ssl OCSP verification setup failure");
goto err;
}
if ((ctx->ssl_conn = SSL_new(ctx->ssl_ctx)) == NULL) {
tls_set_errorx(ctx, "ssl connection failure");
goto err;
}
if (SSL_set_app_data(ctx->ssl_conn, ctx) != 1) {
tls_set_errorx(ctx, "ssl application data failure");
goto err;
}
if (SSL_set_rfd(ctx->ssl_conn, fd_read) != 1 ||
SSL_set_wfd(ctx->ssl_conn, fd_write) != 1) {
tls_set_errorx(ctx, "ssl file descriptor failure");
goto err;
}
if (SSL_set_tlsext_status_type(ctx->ssl_conn, TLSEXT_STATUSTYPE_ocsp) != 1) {
tls_set_errorx(ctx, "ssl OCSP extension setup failure");
goto err;
}
/*
* RFC4366 (SNI): Literal IPv4 and IPv6 addresses are not
* permitted in "HostName".
*/
if (servername != NULL &&
inet_pton(AF_INET, servername, &addrbuf) != 1 &&
inet_pton(AF_INET6, servername, &addrbuf) != 1) {
if (SSL_set_tlsext_host_name(ctx->ssl_conn, servername) == 0) {
tls_set_errorx(ctx, "server name indication failure");
goto err;
}
}
rv = 0;
err:
return (rv);
}
bud_error_t bud_config_new_ssl_ctx(bud_config_t* config,
bud_context_t* context) {
SSL_CTX* ctx;
bud_error_t err;
int options;
/* Choose method, tlsv1_2 by default */
if (config->frontend.method == NULL) {
if (strcmp(config->frontend.security, "tls1.1") == 0)
config->frontend.method = TLSv1_1_server_method();
else if (strcmp(config->frontend.security, "tls1.0") == 0)
config->frontend.method = TLSv1_server_method();
else if (strcmp(config->frontend.security, "tls1.2") == 0)
config->frontend.method = TLSv1_2_server_method();
else if (strcmp(config->frontend.security, "ssl3") == 0)
config->frontend.method = SSLv3_server_method();
else
config->frontend.method = SSLv23_server_method();
}
ctx = SSL_CTX_new(config->frontend.method);
if (ctx == NULL)
return bud_error_str(kBudErrNoMem, "SSL_CTX");
SSL_CTX_set_session_cache_mode(ctx,
SSL_SESS_CACHE_SERVER |
SSL_SESS_CACHE_NO_INTERNAL |
SSL_SESS_CACHE_NO_AUTO_CLEAR);
if (context->ciphers != NULL)
SSL_CTX_set_cipher_list(ctx, context->ciphers);
else if (config->frontend.ciphers != NULL)
SSL_CTX_set_cipher_list(ctx, config->frontend.ciphers);
/* Disable SSL2 */
options = SSL_OP_NO_SSLv2 | SSL_OP_ALL;
if (!config->frontend.ssl3)
options |= SSL_OP_NO_SSLv3;
if (config->frontend.server_preference)
options |= SSL_OP_CIPHER_SERVER_PREFERENCE;
SSL_CTX_set_options(ctx, options);
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
if (config->context_count != 0) {
SSL_CTX_set_tlsext_servername_callback(ctx,
bud_config_select_sni_context);
SSL_CTX_set_tlsext_servername_arg(ctx, config);
}
#endif /* SSL_CTRL_SET_TLSEXT_SERVERNAME_CB */
#ifdef OPENSSL_NPN_NEGOTIATED
context->npn_line = bud_config_encode_npn(config,
context->npn,
&context->npn_line_len,
&err);
if (!bud_is_ok(err))
goto fatal;
if (context->npn_line != NULL) {
SSL_CTX_set_next_protos_advertised_cb(ctx,
bud_config_advertise_next_proto,
context);
}
#else /* !OPENSSL_NPN_NEGOTIATED */
err = bud_error(kBudErrNPNNotSupported);
goto fatal;
#endif /* OPENSSL_NPN_NEGOTIATED */
SSL_CTX_set_tlsext_status_cb(ctx, bud_client_stapling_cb);
context->ctx = ctx;
return bud_ok();
fatal:
SSL_CTX_free(ctx);
return err;
}
int MAIN(int argc, char **argv)
{
int off=0, clr = 0;
SSL *con=NULL,*con2=NULL;
X509_STORE *store = NULL;
int s,k,width,state=0;
char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL;
int cbuf_len,cbuf_off;
int sbuf_len,sbuf_off;
fd_set readfds,writefds;
short port=PORT;
int full_log=1;
char *host=SSL_HOST_NAME;
char *cert_file=NULL,*key_file=NULL;
int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
char *passarg = NULL, *pass = NULL;
X509 *cert = NULL;
EVP_PKEY *key = NULL;
char *CApath=NULL,*CAfile=NULL,*cipher=NULL;
int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0;
int cutthrough=0;
int crlf=0;
int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending;
SSL_CTX *ctx=NULL;
int ret=1,in_init=1,i,nbio_test=0;
int starttls_proto = PROTO_OFF;
int prexit = 0, vflags = 0;
SSL_METHOD *meth=NULL;
#ifdef sock_type
#undef sock_type
#endif
int sock_type=SOCK_STREAM;
BIO *sbio;
char *inrand=NULL;
int mbuf_len=0;
struct timeval timeout, *timeoutp;
#ifndef OPENSSL_NO_ENGINE
char *engine_id=NULL;
char *ssl_client_engine_id=NULL;
ENGINE *ssl_client_engine=NULL;
#endif
ENGINE *e=NULL;
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
struct timeval tv;
#endif
#ifndef OPENSSL_NO_TLSEXT
char *servername = NULL;
tlsextctx tlsextcbp =
{NULL,0};
#endif
char *sess_in = NULL;
char *sess_out = NULL;
struct sockaddr peer;
int peerlen = sizeof(peer);
int enable_timeouts = 0 ;
long socket_mtu = 0;
#ifndef OPENSSL_NO_JPAKE
char *jpake_secret = NULL;
#endif
#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
meth=SSLv23_client_method();
#elif !defined(OPENSSL_NO_SSL3)
meth=SSLv3_client_method();
#elif !defined(OPENSSL_NO_SSL2)
meth=SSLv2_client_method();
#endif
apps_startup();
c_Pause=0;
c_quiet=0;
c_ign_eof=0;
c_debug=0;
c_msg=0;
c_showcerts=0;
if (bio_err == NULL)
bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
if (!load_config(bio_err, NULL))
goto end;
if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) ||
((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL))
{
BIO_printf(bio_err,"out of memory\n");
goto end;
}
verify_depth=0;
verify_error=X509_V_OK;
#ifdef FIONBIO
c_nbio=0;
#endif
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-host") == 0)
{
if (--argc < 1) goto bad;
host= *(++argv);
}
else if (strcmp(*argv,"-port") == 0)
{
if (--argc < 1) goto bad;
port=atoi(*(++argv));
if (port == 0) goto bad;
}
else if (strcmp(*argv,"-connect") == 0)
{
if (--argc < 1) goto bad;
if (!extract_host_port(*(++argv),&host,NULL,&port))
goto bad;
}
else if (strcmp(*argv,"-verify") == 0)
{
verify=SSL_VERIFY_PEER;
if (--argc < 1) goto bad;
verify_depth=atoi(*(++argv));
BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
}
else if (strcmp(*argv,"-cert") == 0)
{
if (--argc < 1) goto bad;
cert_file= *(++argv);
}
else if (strcmp(*argv,"-sess_out") == 0)
{
if (--argc < 1) goto bad;
sess_out = *(++argv);
}
else if (strcmp(*argv,"-sess_in") == 0)
{
if (--argc < 1) goto bad;
sess_in = *(++argv);
}
else if (strcmp(*argv,"-certform") == 0)
{
if (--argc < 1) goto bad;
cert_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-crl_check") == 0)
vflags |= X509_V_FLAG_CRL_CHECK;
else if (strcmp(*argv,"-crl_check_all") == 0)
vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
else if (strcmp(*argv,"-prexit") == 0)
prexit=1;
else if (strcmp(*argv,"-crlf") == 0)
crlf=1;
else if (strcmp(*argv,"-quiet") == 0)
{
c_quiet=1;
c_ign_eof=1;
}
else if (strcmp(*argv,"-ign_eof") == 0)
c_ign_eof=1;
else if (strcmp(*argv,"-no_ign_eof") == 0)
c_ign_eof=0;
else if (strcmp(*argv,"-pause") == 0)
c_Pause=1;
else if (strcmp(*argv,"-debug") == 0)
c_debug=1;
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-tlsextdebug") == 0)
c_tlsextdebug=1;
else if (strcmp(*argv,"-status") == 0)
c_status_req=1;
#endif
#ifdef WATT32
else if (strcmp(*argv,"-wdebug") == 0)
dbug_init();
#endif
else if (strcmp(*argv,"-msg") == 0)
c_msg=1;
else if (strcmp(*argv,"-showcerts") == 0)
c_showcerts=1;
else if (strcmp(*argv,"-nbio_test") == 0)
nbio_test=1;
else if (strcmp(*argv,"-state") == 0)
state=1;
#ifndef OPENSSL_NO_SSL2
else if (strcmp(*argv,"-ssl2") == 0)
meth=SSLv2_client_method();
#endif
#ifndef OPENSSL_NO_SSL3
else if (strcmp(*argv,"-ssl3") == 0)
meth=SSLv3_client_method();
#endif
#ifndef OPENSSL_NO_TLS1
else if (strcmp(*argv,"-tls1") == 0)
meth=TLSv1_client_method();
#endif
#ifndef OPENSSL_NO_DTLS1
else if (strcmp(*argv,"-dtls1") == 0)
{
meth=DTLSv1_client_method();
sock_type=SOCK_DGRAM;
}
else if (strcmp(*argv,"-timeout") == 0)
enable_timeouts=1;
else if (strcmp(*argv,"-mtu") == 0)
{
if (--argc < 1) goto bad;
socket_mtu = atol(*(++argv));
}
#endif
else if (strcmp(*argv,"-bugs") == 0)
bugs=1;
else if (strcmp(*argv,"-keyform") == 0)
{
if (--argc < 1) goto bad;
key_format = str2fmt(*(++argv));
}
else if (strcmp(*argv,"-pass") == 0)
{
if (--argc < 1) goto bad;
passarg = *(++argv);
}
else if (strcmp(*argv,"-key") == 0)
{
if (--argc < 1) goto bad;
key_file= *(++argv);
}
else if (strcmp(*argv,"-reconnect") == 0)
{
reconnect=5;
}
else if (strcmp(*argv,"-CApath") == 0)
{
if (--argc < 1) goto bad;
CApath= *(++argv);
}
else if (strcmp(*argv,"-CAfile") == 0)
{
if (--argc < 1) goto bad;
CAfile= *(++argv);
}
else if (strcmp(*argv,"-no_tls1") == 0)
off|=SSL_OP_NO_TLSv1;
else if (strcmp(*argv,"-no_ssl3") == 0)
off|=SSL_OP_NO_SSLv3;
else if (strcmp(*argv,"-no_ssl2") == 0)
off|=SSL_OP_NO_SSLv2;
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-no_ticket") == 0)
{ off|=SSL_OP_NO_TICKET; }
#endif
else if (strcmp(*argv,"-cutthrough") == 0)
cutthrough=1;
else if (strcmp(*argv,"-serverpref") == 0)
off|=SSL_OP_CIPHER_SERVER_PREFERENCE;
else if (strcmp(*argv,"-legacy_renegotiation") == 0)
off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
else if (strcmp(*argv,"-legacy_server_connect") == 0)
{ off|=SSL_OP_LEGACY_SERVER_CONNECT; }
else if (strcmp(*argv,"-no_legacy_server_connect") == 0)
{ clr|=SSL_OP_LEGACY_SERVER_CONNECT; }
else if (strcmp(*argv,"-cipher") == 0)
{
if (--argc < 1) goto bad;
cipher= *(++argv);
}
#ifdef FIONBIO
else if (strcmp(*argv,"-nbio") == 0)
{ c_nbio=1; }
#endif
else if (strcmp(*argv,"-starttls") == 0)
{
if (--argc < 1) goto bad;
++argv;
if (strcmp(*argv,"smtp") == 0)
starttls_proto = PROTO_SMTP;
else if (strcmp(*argv,"pop3") == 0)
starttls_proto = PROTO_POP3;
else if (strcmp(*argv,"imap") == 0)
starttls_proto = PROTO_IMAP;
else if (strcmp(*argv,"ftp") == 0)
starttls_proto = PROTO_FTP;
else if (strcmp(*argv, "xmpp") == 0)
starttls_proto = PROTO_XMPP;
else
goto bad;
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine_id = *(++argv);
}
else if (strcmp(*argv,"-ssl_client_engine") == 0)
{
if (--argc < 1) goto bad;
ssl_client_engine_id = *(++argv);
}
#endif
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) goto bad;
inrand= *(++argv);
}
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv,"-servername") == 0)
{
if (--argc < 1) goto bad;
servername= *(++argv);
/* meth=TLSv1_client_method(); */
}
#endif
#ifndef OPENSSL_NO_JPAKE
else if (strcmp(*argv,"-jpake") == 0)
{
if (--argc < 1) goto bad;
jpake_secret = *++argv;
}
#endif
else
{
BIO_printf(bio_err,"unknown option %s\n",*argv);
badop=1;
break;
}
argc--;
argv++;
}
if (badop)
{
bad:
sc_usage();
goto end;
}
OpenSSL_add_ssl_algorithms();
SSL_load_error_strings();
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine_id, 1);
if (ssl_client_engine_id)
{
ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
if (!ssl_client_engine)
{
BIO_printf(bio_err,
"Error getting client auth engine\n");
goto end;
}
}
#endif
if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
{
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (key_file == NULL)
key_file = cert_file;
if (key_file)
{
key = load_key(bio_err, key_file, key_format, 0, pass, e,
"client certificate private key file");
if (!key)
{
ERR_print_errors(bio_err);
goto end;
}
}
if (cert_file)
{
cert = load_cert(bio_err,cert_file,cert_format,
NULL, e, "client certificate file");
if (!cert)
{
ERR_print_errors(bio_err);
goto end;
}
}
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
&& !RAND_status())
{
BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
}
if (inrand != NULL)
BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
if (bio_c_out == NULL)
{
if (c_quiet && !c_debug && !c_msg)
{
bio_c_out=BIO_new(BIO_s_null());
}
else
{
if (bio_c_out == NULL)
bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE);
}
}
ctx=SSL_CTX_new(meth);
if (ctx == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
#ifndef OPENSSL_NO_ENGINE
if (ssl_client_engine)
{
if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine))
{
BIO_puts(bio_err, "Error setting client auth engine\n");
ERR_print_errors(bio_err);
ENGINE_free(ssl_client_engine);
goto end;
}
ENGINE_free(ssl_client_engine);
}
#endif
if (bugs)
SSL_CTX_set_options(ctx,SSL_OP_ALL|off);
else
SSL_CTX_set_options(ctx,off);
if (clr)
SSL_CTX_clear_options(ctx, clr);
/* DTLS: partial reads end up discarding unread UDP bytes :-(
* Setting read ahead solves this problem.
*/
if (sock_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
/* Enable handshake cutthrough for client connections using
* strong ciphers. */
if (cutthrough)
{
int ssl_mode = SSL_CTX_get_mode(ctx);
ssl_mode |= SSL_MODE_HANDSHAKE_CUTTHROUGH;
SSL_CTX_set_mode(ctx, ssl_mode);
}
if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
if (cipher != NULL)
if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
BIO_printf(bio_err,"error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
#if 0
else
SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER"));
#endif
SSL_CTX_set_verify(ctx,verify,verify_callback);
if (!set_cert_key_stuff(ctx,cert,key))
goto end;
if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx)))
{
/* BIO_printf(bio_err,"error setting default verify locations\n"); */
ERR_print_errors(bio_err);
/* goto end; */
}
store = SSL_CTX_get_cert_store(ctx);
X509_STORE_set_flags(store, vflags);
#ifndef OPENSSL_NO_TLSEXT
if (servername != NULL)
{
tlsextcbp.biodebug = bio_err;
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
}
#endif
con=SSL_new(ctx);
if (sess_in)
{
SSL_SESSION *sess;
BIO *stmp = BIO_new_file(sess_in, "r");
if (!stmp)
{
BIO_printf(bio_err, "Can't open session file %s\n",
sess_in);
ERR_print_errors(bio_err);
goto end;
}
sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
BIO_free(stmp);
if (!sess)
{
BIO_printf(bio_err, "Can't open session file %s\n",
sess_in);
ERR_print_errors(bio_err);
goto end;
}
SSL_set_session(con, sess);
SSL_SESSION_free(sess);
}
#ifndef OPENSSL_NO_TLSEXT
if (servername != NULL)
{
if (!SSL_set_tlsext_host_name(con,servername))
{
BIO_printf(bio_err,"Unable to set TLS servername extension.\n");
ERR_print_errors(bio_err);
goto end;
}
}
#endif
#ifndef OPENSSL_NO_KRB5
if (con && (con->kssl_ctx = kssl_ctx_new()) != NULL)
{
kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVER, host);
}
#endif /* OPENSSL_NO_KRB5 */
/* SSL_set_cipher_list(con,"RC4-MD5"); */
re_start:
if (init_client(&s,host,port,sock_type) == 0)
{
BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error());
SHUTDOWN(s);
goto end;
}
BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s);
#ifdef FIONBIO
if (c_nbio)
{
unsigned long l=1;
BIO_printf(bio_c_out,"turning on non blocking io\n");
if (BIO_socket_ioctl(s,FIONBIO,&l) < 0)
{
ERR_print_errors(bio_err);
goto end;
}
}
#endif
if (c_Pause & 0x01) con->debug=1;
if ( SSL_version(con) == DTLS1_VERSION)
{
sbio=BIO_new_dgram(s,BIO_NOCLOSE);
if (getsockname(s, &peer, (void *)&peerlen) < 0)
{
BIO_printf(bio_err, "getsockname:errno=%d\n",
get_last_socket_error());
SHUTDOWN(s);
goto end;
}
(void)BIO_ctrl_set_connected(sbio, 1, &peer);
if ( enable_timeouts)
{
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_RCV_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_SND_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
}
if (socket_mtu > 28)
{
SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
SSL_set_mtu(con, socket_mtu - 28);
}
else
/* want to do MTU discovery */
BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
}
else
sbio=BIO_new_socket(s,BIO_NOCLOSE);
if (nbio_test)
{
BIO *test;
test=BIO_new(BIO_f_nbio_test());
sbio=BIO_push(test,sbio);
}
if (c_debug)
{
con->debug=1;
BIO_set_callback(sbio,bio_dump_callback);
BIO_set_callback_arg(sbio,(char *)bio_c_out);
}
if (c_msg)
{
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_c_out);
}
#ifndef OPENSSL_NO_TLSEXT
if (c_tlsextdebug)
{
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_c_out);
}
if (c_status_req)
{
SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
#if 0
{
STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
OCSP_RESPID *id = OCSP_RESPID_new();
id->value.byKey = ASN1_OCTET_STRING_new();
id->type = V_OCSP_RESPID_KEY;
ASN1_STRING_set(id->value.byKey, "Hello World", -1);
sk_OCSP_RESPID_push(ids, id);
SSL_set_tlsext_status_ids(con, ids);
}
#endif
}
#endif
#ifndef OPENSSL_NO_JPAKE
if (jpake_secret)
jpake_client_auth(bio_c_out, sbio, jpake_secret);
#endif
SSL_set_bio(con,sbio,sbio);
SSL_set_connect_state(con);
/* ok, lets connect */
width=SSL_get_fd(con)+1;
read_tty=1;
write_tty=0;
tty_on=0;
read_ssl=1;
write_ssl=1;
cbuf_len=0;
cbuf_off=0;
sbuf_len=0;
sbuf_off=0;
/* This is an ugly hack that does a lot of assumptions */
/* We do have to handle multi-line responses which may come
in a single packet or not. We therefore have to use
BIO_gets() which does need a buffering BIO. So during
the initial chitchat we do push a buffering BIO into the
chain that is removed again later on to not disturb the
rest of the s_client operation. */
if (starttls_proto == PROTO_SMTP)
{
int foundit=0;
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
/* wait for multi-line response to end from SMTP */
do
{
mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
}
while (mbuf_len>3 && mbuf[3]=='-');
/* STARTTLS command requires EHLO... */
BIO_printf(fbio,"EHLO openssl.client.net\r\n");
(void)BIO_flush(fbio);
/* wait for multi-line response to end EHLO SMTP response */
do
{
mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
if (strstr(mbuf,"STARTTLS"))
foundit=1;
}
while (mbuf_len>3 && mbuf[3]=='-');
(void)BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
if (!foundit)
BIO_printf(bio_err,
"didn't found starttls in server response,"
" try anyway...\n");
BIO_printf(sbio,"STARTTLS\r\n");
BIO_read(sbio,sbuf,BUFSIZZ);
}
else if (starttls_proto == PROTO_POP3)
{
BIO_read(sbio,mbuf,BUFSIZZ);
BIO_printf(sbio,"STLS\r\n");
BIO_read(sbio,sbuf,BUFSIZZ);
}
else if (starttls_proto == PROTO_IMAP)
{
int foundit=0;
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
BIO_gets(fbio,mbuf,BUFSIZZ);
/* STARTTLS command requires CAPABILITY... */
BIO_printf(fbio,". CAPABILITY\r\n");
(void)BIO_flush(fbio);
/* wait for multi-line CAPABILITY response */
do
{
mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
if (strstr(mbuf,"STARTTLS"))
foundit=1;
}
while (mbuf_len>3 && mbuf[0]!='.');
(void)BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
if (!foundit)
BIO_printf(bio_err,
"didn't found STARTTLS in server response,"
" try anyway...\n");
BIO_printf(sbio,". STARTTLS\r\n");
BIO_read(sbio,sbuf,BUFSIZZ);
}
else if (starttls_proto == PROTO_FTP)
{
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
/* wait for multi-line response to end from FTP */
do
{
mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ);
}
while (mbuf_len>3 && mbuf[3]=='-');
(void)BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
BIO_printf(sbio,"AUTH TLS\r\n");
BIO_read(sbio,sbuf,BUFSIZZ);
}
if (starttls_proto == PROTO_XMPP)
{
int seen = 0;
BIO_printf(sbio,"<stream:stream "
"xmlns:stream='http://etherx.jabber.org/streams' "
"xmlns='jabber:client' to='%s' version='1.0'>", host);
seen = BIO_read(sbio,mbuf,BUFSIZZ);
mbuf[seen] = 0;
while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'"))
{
if (strstr(mbuf, "/stream:features>"))
goto shut;
seen = BIO_read(sbio,mbuf,BUFSIZZ);
mbuf[seen] = 0;
}
BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
seen = BIO_read(sbio,sbuf,BUFSIZZ);
sbuf[seen] = 0;
if (!strstr(sbuf, "<proceed"))
goto shut;
mbuf[0] = 0;
}
for (;;)
{
FD_ZERO(&readfds);
FD_ZERO(&writefds);
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
timeoutp = &timeout;
else
timeoutp = NULL;
if (SSL_in_init(con) && !SSL_total_renegotiations(con))
{
in_init=1;
tty_on=0;
}
else
{
tty_on=1;
if (in_init)
{
in_init=0;
if (sess_out)
{
BIO *stmp = BIO_new_file(sess_out, "w");
if (stmp)
{
PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
BIO_free(stmp);
}
else
BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
}
print_stuff(bio_c_out,con,full_log);
if (full_log > 0) full_log--;
if (starttls_proto)
{
BIO_printf(bio_err,"%s",mbuf);
/* We don't need to know any more */
starttls_proto = PROTO_OFF;
}
if (reconnect)
{
reconnect--;
BIO_printf(bio_c_out,"drop connection and then reconnect\n");
SSL_shutdown(con);
SSL_set_connect_state(con);
SHUTDOWN(SSL_get_fd(con));
goto re_start;
}
}
}
ssl_pending = read_ssl && SSL_pending(con);
if (!ssl_pending)
{
#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
if (tty_on)
{
if (read_tty) FD_SET(fileno(stdin),&readfds);
if (write_tty) FD_SET(fileno(stdout),&writefds);
}
if (read_ssl)
FD_SET(SSL_get_fd(con),&readfds);
if (write_ssl)
FD_SET(SSL_get_fd(con),&writefds);
#else
if(!tty_on || !write_tty) {
if (read_ssl)
FD_SET(SSL_get_fd(con),&readfds);
if (write_ssl)
FD_SET(SSL_get_fd(con),&writefds);
}
#endif
/* printf("mode tty(%d %d%d) ssl(%d%d)\n",
tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
/* Note: under VMS with SOCKETSHR the second parameter
* is currently of type (int *) whereas under other
* systems it is (void *) if you don't have a cast it
* will choke the compiler: if you do have a cast then
* you can either go for (int *) or (void *).
*/
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
/* Under Windows/DOS we make the assumption that we can
* always write to the tty: therefore if we need to
* write to the tty we just fall through. Otherwise
* we timeout the select every second and see if there
* are any keypresses. Note: this is a hack, in a proper
* Windows application we wouldn't do this.
*/
i=0;
if(!write_tty) {
if(read_tty) {
tv.tv_sec = 1;
tv.tv_usec = 0;
i=select(width,(void *)&readfds,(void *)&writefds,
NULL,&tv);
#if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
if(!i && (!_kbhit() || !read_tty) ) continue;
#else
if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
#endif
} else i=select(width,(void *)&readfds,(void *)&writefds,
NULL,timeoutp);
}
#elif defined(OPENSSL_SYS_NETWARE)
if(!write_tty) {
if(read_tty) {
tv.tv_sec = 1;
tv.tv_usec = 0;
i=select(width,(void *)&readfds,(void *)&writefds,
NULL,&tv);
} else i=select(width,(void *)&readfds,(void *)&writefds,
NULL,timeoutp);
}
#else
i=select(width,(void *)&readfds,(void *)&writefds,
NULL,timeoutp);
#endif
if ( i < 0)
{
BIO_printf(bio_err,"bad select %d\n",
get_last_socket_error());
goto shut;
/* goto end; */
}
}
if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
{
BIO_printf(bio_err,"TIMEOUT occured\n");
}
if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds))
{
k=SSL_write(con,&(cbuf[cbuf_off]),
(unsigned int)cbuf_len);
switch (SSL_get_error(con,k))
{
case SSL_ERROR_NONE:
cbuf_off+=k;
cbuf_len-=k;
if (k <= 0) goto end;
/* we have done a write(con,NULL,0); */
if (cbuf_len <= 0)
{
read_tty=1;
write_ssl=0;
}
else /* if (cbuf_len > 0) */
{
read_tty=0;
write_ssl=1;
}
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out,"write W BLOCK\n");
write_ssl=1;
read_tty=0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out,"write R BLOCK\n");
write_tty=0;
read_ssl=1;
write_ssl=0;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out,"write X BLOCK\n");
break;
case SSL_ERROR_ZERO_RETURN:
if (cbuf_len != 0)
{
BIO_printf(bio_c_out,"shutdown\n");
goto shut;
}
else
{
read_tty=1;
write_ssl=0;
break;
}
case SSL_ERROR_SYSCALL:
if ((k != 0) || (cbuf_len != 0))
{
BIO_printf(bio_err,"write:errno=%d\n",
get_last_socket_error());
goto shut;
}
else
{
read_tty=1;
write_ssl=0;
}
break;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
}
}
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
/* Assume Windows/DOS can always write */
else if (!ssl_pending && write_tty)
#else
else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds))
#endif
{
#ifdef CHARSET_EBCDIC
ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len);
#endif
i=write(fileno(stdout),&(sbuf[sbuf_off]),sbuf_len);
if (i <= 0)
{
BIO_printf(bio_c_out,"DONE\n");
goto shut;
/* goto end; */
}
sbuf_len-=i;;
sbuf_off+=i;
if (sbuf_len <= 0)
{
read_ssl=1;
write_tty=0;
}
}
else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds))
{
#ifdef RENEG
{ static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } }
#endif
#if 1
k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ );
#else
/* Demo for pending and peek :-) */
k=SSL_read(con,sbuf,16);
{ char zbuf[10240];
printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240));
}
#endif
switch (SSL_get_error(con,k))
{
case SSL_ERROR_NONE:
if (k <= 0)
goto end;
sbuf_off=0;
sbuf_len=k;
read_ssl=0;
write_tty=1;
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out,"read W BLOCK\n");
write_ssl=1;
read_tty=0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out,"read R BLOCK\n");
write_tty=0;
read_ssl=1;
if ((read_tty == 0) && (write_ssl == 0))
write_ssl=1;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out,"read X BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
BIO_printf(bio_err,"read:errno=%d\n",get_last_socket_error());
goto shut;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_c_out,"closed\n");
goto shut;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
/* break; */
}
}
#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
#if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
else if (_kbhit())
#else
else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
#endif
#elif defined (OPENSSL_SYS_NETWARE)
else if (_kbhit())
#else
else if (FD_ISSET(fileno(stdin),&readfds))
#endif
{
if (crlf)
{
int j, lf_num;
i=read(fileno(stdin),cbuf,BUFSIZZ/2);
lf_num = 0;
/* both loops are skipped when i <= 0 */
for (j = 0; j < i; j++)
if (cbuf[j] == '\n')
lf_num++;
for (j = i-1; j >= 0; j--)
{
cbuf[j+lf_num] = cbuf[j];
if (cbuf[j] == '\n')
{
lf_num--;
i++;
cbuf[j+lf_num] = '\r';
}
}
assert(lf_num == 0);
}
else
i=read(fileno(stdin),cbuf,BUFSIZZ);
if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q')))
{
BIO_printf(bio_err,"DONE\n");
goto shut;
}
if ((!c_ign_eof) && (cbuf[0] == 'R'))
{
BIO_printf(bio_err,"RENEGOTIATING\n");
SSL_renegotiate(con);
cbuf_len=0;
}
else
{
cbuf_len=i;
cbuf_off=0;
#ifdef CHARSET_EBCDIC
ebcdic2ascii(cbuf, cbuf, i);
#endif
}
write_ssl=1;
read_tty=0;
}
}
shut:
SSL_shutdown(con);
SHUTDOWN(SSL_get_fd(con));
ret=0;
end:
if(prexit) print_stuff(bio_c_out,con,1);
if (con != NULL) SSL_free(con);
if (con2 != NULL) SSL_free(con2);
if (ctx != NULL) SSL_CTX_free(ctx);
if (cert)
X509_free(cert);
if (key)
EVP_PKEY_free(key);
if (pass)
OPENSSL_free(pass);
if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); }
if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); }
if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); }
if (bio_c_out != NULL)
{
BIO_free(bio_c_out);
bio_c_out=NULL;
}
apps_shutdown();
OPENSSL_EXIT(ret);
}
int
s_client_main(int argc, char **argv)
{
unsigned int off = 0, clr = 0;
SSL *con = NULL;
int s, k, width, state = 0, af = AF_UNSPEC;
char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
int cbuf_len, cbuf_off;
int sbuf_len, sbuf_off;
fd_set readfds, writefds;
char *port = PORT_STR;
int full_log = 1;
char *host = SSL_HOST_NAME;
char *cert_file = NULL, *key_file = NULL;
int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
char *passarg = NULL, *pass = NULL;
X509 *cert = NULL;
EVP_PKEY *key = NULL;
char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
int crlf = 0;
int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
SSL_CTX *ctx = NULL;
int ret = 1, in_init = 1, i, nbio_test = 0;
int starttls_proto = PROTO_OFF;
int prexit = 0;
X509_VERIFY_PARAM *vpm = NULL;
int badarg = 0;
const SSL_METHOD *meth = NULL;
int socket_type = SOCK_STREAM;
BIO *sbio;
int mbuf_len = 0;
struct timeval timeout, *timeoutp;
const char *errstr = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine_id = NULL;
char *ssl_client_engine_id = NULL;
ENGINE *ssl_client_engine = NULL;
#endif
ENGINE *e = NULL;
#ifndef OPENSSL_NO_TLSEXT
char *servername = NULL;
tlsextctx tlsextcbp =
{NULL, 0};
#ifndef OPENSSL_NO_NEXTPROTONEG
const char *next_proto_neg_in = NULL;
#endif
#endif
char *sess_in = NULL;
char *sess_out = NULL;
struct sockaddr peer;
int peerlen = sizeof(peer);
int enable_timeouts = 0;
long socket_mtu = 0;
meth = SSLv23_client_method();
c_Pause = 0;
c_quiet = 0;
c_ign_eof = 0;
c_debug = 0;
c_msg = 0;
c_showcerts = 0;
if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
((sbuf = malloc(BUFSIZZ)) == NULL) ||
((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
BIO_printf(bio_err, "out of memory\n");
goto end;
}
verify_depth = 0;
verify_error = X509_V_OK;
c_nbio = 0;
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-host") == 0) {
if (--argc < 1)
goto bad;
host = *(++argv);
} else if (strcmp(*argv, "-port") == 0) {
if (--argc < 1)
goto bad;
port = *(++argv);
if (port == NULL || *port == '\0')
goto bad;
} else if (strcmp(*argv, "-connect") == 0) {
if (--argc < 1)
goto bad;
if (!extract_host_port(*(++argv), &host, NULL, &port))
goto bad;
} else if (strcmp(*argv, "-verify") == 0) {
verify = SSL_VERIFY_PEER;
if (--argc < 1)
goto bad;
verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
if (errstr)
goto bad;
BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
} else if (strcmp(*argv, "-cert") == 0) {
if (--argc < 1)
goto bad;
cert_file = *(++argv);
} else if (strcmp(*argv, "-sess_out") == 0) {
if (--argc < 1)
goto bad;
sess_out = *(++argv);
} else if (strcmp(*argv, "-sess_in") == 0) {
if (--argc < 1)
goto bad;
sess_in = *(++argv);
} else if (strcmp(*argv, "-certform") == 0) {
if (--argc < 1)
goto bad;
cert_format = str2fmt(*(++argv));
} else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
if (badarg)
goto bad;
continue;
} else if (strcmp(*argv, "-verify_return_error") == 0)
verify_return_error = 1;
else if (strcmp(*argv, "-prexit") == 0)
prexit = 1;
else if (strcmp(*argv, "-crlf") == 0)
crlf = 1;
else if (strcmp(*argv, "-quiet") == 0) {
c_quiet = 1;
c_ign_eof = 1;
} else if (strcmp(*argv, "-ign_eof") == 0)
c_ign_eof = 1;
else if (strcmp(*argv, "-no_ign_eof") == 0)
c_ign_eof = 0;
else if (strcmp(*argv, "-pause") == 0)
c_Pause = 1;
else if (strcmp(*argv, "-debug") == 0)
c_debug = 1;
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv, "-tlsextdebug") == 0)
c_tlsextdebug = 1;
else if (strcmp(*argv, "-status") == 0)
c_status_req = 1;
#endif
else if (strcmp(*argv, "-msg") == 0)
c_msg = 1;
else if (strcmp(*argv, "-showcerts") == 0)
c_showcerts = 1;
else if (strcmp(*argv, "-nbio_test") == 0)
nbio_test = 1;
else if (strcmp(*argv, "-state") == 0)
state = 1;
else if (strcmp(*argv, "-ssl3") == 0)
meth = SSLv3_client_method();
else if (strcmp(*argv, "-tls1_2") == 0)
meth = TLSv1_2_client_method();
else if (strcmp(*argv, "-tls1_1") == 0)
meth = TLSv1_1_client_method();
else if (strcmp(*argv, "-tls1") == 0)
meth = TLSv1_client_method();
#ifndef OPENSSL_NO_DTLS1
else if (strcmp(*argv, "-dtls1") == 0) {
meth = DTLSv1_client_method();
socket_type = SOCK_DGRAM;
} else if (strcmp(*argv, "-timeout") == 0)
enable_timeouts = 1;
else if (strcmp(*argv, "-mtu") == 0) {
if (--argc < 1)
goto bad;
socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
if (errstr)
goto bad;
}
#endif
else if (strcmp(*argv, "-bugs") == 0)
bugs = 1;
else if (strcmp(*argv, "-keyform") == 0) {
if (--argc < 1)
goto bad;
key_format = str2fmt(*(++argv));
} else if (strcmp(*argv, "-pass") == 0) {
if (--argc < 1)
goto bad;
passarg = *(++argv);
} else if (strcmp(*argv, "-key") == 0) {
if (--argc < 1)
goto bad;
key_file = *(++argv);
} else if (strcmp(*argv, "-reconnect") == 0) {
reconnect = 5;
} else if (strcmp(*argv, "-CApath") == 0) {
if (--argc < 1)
goto bad;
CApath = *(++argv);
} else if (strcmp(*argv, "-CAfile") == 0) {
if (--argc < 1)
goto bad;
CAfile = *(++argv);
} else if (strcmp(*argv, "-no_tls1_2") == 0)
off |= SSL_OP_NO_TLSv1_2;
else if (strcmp(*argv, "-no_tls1_1") == 0)
off |= SSL_OP_NO_TLSv1_1;
else if (strcmp(*argv, "-no_tls1") == 0)
off |= SSL_OP_NO_TLSv1;
else if (strcmp(*argv, "-no_ssl3") == 0)
off |= SSL_OP_NO_SSLv3;
else if (strcmp(*argv, "-no_ssl2") == 0)
off |= SSL_OP_NO_SSLv2;
else if (strcmp(*argv, "-no_comp") == 0) {
off |= SSL_OP_NO_COMPRESSION;
}
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv, "-no_ticket") == 0) {
off |= SSL_OP_NO_TICKET;
}
#ifndef OPENSSL_NO_NEXTPROTONEG
else if (strcmp(*argv, "-nextprotoneg") == 0) {
if (--argc < 1)
goto bad;
next_proto_neg_in = *(++argv);
}
#endif
#endif
else if (strcmp(*argv, "-serverpref") == 0)
off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
else if (strcmp(*argv, "-legacy_renegotiation") == 0)
; /* no-op */
else if (strcmp(*argv, "-legacy_server_connect") == 0) {
off |= SSL_OP_LEGACY_SERVER_CONNECT;
} else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
clr |= SSL_OP_LEGACY_SERVER_CONNECT;
} else if (strcmp(*argv, "-cipher") == 0) {
if (--argc < 1)
goto bad;
cipher = *(++argv);
}
else if (strcmp(*argv, "-nbio") == 0) {
c_nbio = 1;
}
else if (strcmp(*argv, "-starttls") == 0) {
if (--argc < 1)
goto bad;
++argv;
if (strcmp(*argv, "smtp") == 0)
starttls_proto = PROTO_SMTP;
else if (strcmp(*argv, "lmtp") == 0)
starttls_proto = PROTO_LMTP;
else if (strcmp(*argv, "pop3") == 0)
starttls_proto = PROTO_POP3;
else if (strcmp(*argv, "imap") == 0)
starttls_proto = PROTO_IMAP;
else if (strcmp(*argv, "ftp") == 0)
starttls_proto = PROTO_FTP;
else if (strcmp(*argv, "xmpp") == 0)
starttls_proto = PROTO_XMPP;
else
goto bad;
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
goto bad;
engine_id = *(++argv);
} else if (strcmp(*argv, "-ssl_client_engine") == 0) {
if (--argc < 1)
goto bad;
ssl_client_engine_id = *(++argv);
}
#endif
else if (strcmp(*argv, "-4") == 0) {
af = AF_INET;
} else if (strcmp(*argv, "-6") == 0) {
af = AF_INET6;
}
#ifndef OPENSSL_NO_TLSEXT
else if (strcmp(*argv, "-servername") == 0) {
if (--argc < 1)
goto bad;
servername = *(++argv);
/* meth=TLSv1_client_method(); */
}
#endif
#ifndef OPENSSL_NO_SRTP
else if (strcmp(*argv, "-use_srtp") == 0) {
if (--argc < 1)
goto bad;
srtp_profiles = *(++argv);
}
#endif
else if (strcmp(*argv, "-keymatexport") == 0) {
if (--argc < 1)
goto bad;
keymatexportlabel = *(++argv);
} else if (strcmp(*argv, "-keymatexportlen") == 0) {
const char *errstr;
if (--argc < 1)
goto bad;
keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
if (errstr)
goto bad;
} else {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badop = 1;
break;
}
argc--;
argv++;
}
if (badop) {
bad:
if (errstr)
BIO_printf(bio_err, "invalid argument %s: %s\n",
*argv, errstr);
else
sc_usage();
goto end;
}
#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
next_proto.status = -1;
if (next_proto_neg_in) {
next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in);
if (next_proto.data == NULL) {
BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
goto end;
}
} else
next_proto.data = NULL;
#endif
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine_id, 1);
if (ssl_client_engine_id) {
ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
if (!ssl_client_engine) {
BIO_printf(bio_err,
"Error getting client auth engine\n");
goto end;
}
}
#endif
if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (key_file == NULL)
key_file = cert_file;
if (key_file) {
key = load_key(bio_err, key_file, key_format, 0, pass, e,
"client certificate private key file");
if (!key) {
ERR_print_errors(bio_err);
goto end;
}
}
if (cert_file) {
cert = load_cert(bio_err, cert_file, cert_format,
NULL, e, "client certificate file");
if (!cert) {
ERR_print_errors(bio_err);
goto end;
}
}
if (bio_c_out == NULL) {
if (c_quiet && !c_debug && !c_msg) {
bio_c_out = BIO_new(BIO_s_null());
} else {
if (bio_c_out == NULL)
bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
}
ctx = SSL_CTX_new(meth);
if (ctx == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (vpm)
SSL_CTX_set1_param(ctx, vpm);
#ifndef OPENSSL_NO_ENGINE
if (ssl_client_engine) {
if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
BIO_puts(bio_err, "Error setting client auth engine\n");
ERR_print_errors(bio_err);
ENGINE_free(ssl_client_engine);
goto end;
}
ENGINE_free(ssl_client_engine);
}
#endif
#ifndef OPENSSL_NO_SRTP
if (srtp_profiles != NULL)
SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
#endif
if (bugs)
SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
else
SSL_CTX_set_options(ctx, off);
if (clr)
SSL_CTX_clear_options(ctx, clr);
/*
* DTLS: partial reads end up discarding unread UDP bytes :-( Setting
* read ahead solves this problem.
*/
if (socket_type == SOCK_DGRAM)
SSL_CTX_set_read_ahead(ctx, 1);
#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
if (next_proto.data)
SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
#endif
if (state)
SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
if (cipher != NULL)
if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
BIO_printf(bio_err, "error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
SSL_CTX_set_verify(ctx, verify, verify_callback);
if (!set_cert_key_stuff(ctx, cert, key))
goto end;
if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx))) {
/*
* BIO_printf(bio_err,"error setting default verify
* locations\n");
*/
ERR_print_errors(bio_err);
/* goto end; */
}
#ifndef OPENSSL_NO_TLSEXT
if (servername != NULL) {
tlsextcbp.biodebug = bio_err;
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
}
#endif
con = SSL_new(ctx);
if (sess_in) {
SSL_SESSION *sess;
BIO *stmp = BIO_new_file(sess_in, "r");
if (!stmp) {
BIO_printf(bio_err, "Can't open session file %s\n",
sess_in);
ERR_print_errors(bio_err);
goto end;
}
sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
BIO_free(stmp);
if (!sess) {
BIO_printf(bio_err, "Can't open session file %s\n",
sess_in);
ERR_print_errors(bio_err);
goto end;
}
SSL_set_session(con, sess);
SSL_SESSION_free(sess);
}
#ifndef OPENSSL_NO_TLSEXT
if (servername != NULL) {
if (!SSL_set_tlsext_host_name(con, servername)) {
BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
ERR_print_errors(bio_err);
goto end;
}
}
#endif
/* SSL_set_cipher_list(con,"RC4-MD5"); */
re_start:
if (init_client(&s, host, port, socket_type, af) == 0) {
BIO_printf(bio_err, "connect:errno=%d\n", errno);
shutdown(s, SHUT_RD);
close(s);
goto end;
}
BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
if (c_nbio) {
unsigned long l = 1;
BIO_printf(bio_c_out, "turning on non blocking io\n");
if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) {
ERR_print_errors(bio_err);
goto end;
}
}
if (c_Pause & 0x01)
SSL_set_debug(con, 1);
if (SSL_version(con) == DTLS1_VERSION) {
sbio = BIO_new_dgram(s, BIO_NOCLOSE);
if (getsockname(s, &peer, (void *) &peerlen) < 0) {
BIO_printf(bio_err, "getsockname:errno=%d\n",
errno);
shutdown(s, SHUT_RD);
close(s);
goto end;
}
(void) BIO_ctrl_set_connected(sbio, 1, &peer);
if (enable_timeouts) {
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_RCV_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
timeout.tv_sec = 0;
timeout.tv_usec = DGRAM_SND_TIMEOUT;
BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
}
if (socket_mtu > 28) {
SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
SSL_set_mtu(con, socket_mtu - 28);
} else
/* want to do MTU discovery */
BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
} else
sbio = BIO_new_socket(s, BIO_NOCLOSE);
if (nbio_test) {
BIO *test;
test = BIO_new(BIO_f_nbio_test());
sbio = BIO_push(test, sbio);
}
if (c_debug) {
SSL_set_debug(con, 1);
BIO_set_callback(sbio, bio_dump_callback);
BIO_set_callback_arg(sbio, (char *) bio_c_out);
}
if (c_msg) {
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_c_out);
}
#ifndef OPENSSL_NO_TLSEXT
if (c_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_c_out);
}
if (c_status_req) {
SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
}
#endif
SSL_set_bio(con, sbio, sbio);
SSL_set_connect_state(con);
/* ok, lets connect */
width = SSL_get_fd(con) + 1;
read_tty = 1;
write_tty = 0;
tty_on = 0;
read_ssl = 1;
write_ssl = 1;
cbuf_len = 0;
cbuf_off = 0;
sbuf_len = 0;
sbuf_off = 0;
/* This is an ugly hack that does a lot of assumptions */
/*
* We do have to handle multi-line responses which may come in a
* single packet or not. We therefore have to use BIO_gets() which
* does need a buffering BIO. So during the initial chitchat we do
* push a buffering BIO into the chain that is removed again later on
* to not disturb the rest of the s_client operation.
*/
if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
int foundit = 0;
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
/* wait for multi-line response to end from SMTP */
do {
mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
}
while (mbuf_len > 3 && mbuf[3] == '-');
/* STARTTLS command requires EHLO... */
BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
starttls_proto == PROTO_SMTP ? 'E' : 'L');
(void) BIO_flush(fbio);
/* wait for multi-line response to end EHLO SMTP response */
do {
mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
if (strstr(mbuf, "STARTTLS"))
foundit = 1;
}
while (mbuf_len > 3 && mbuf[3] == '-');
(void) BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
if (!foundit)
BIO_printf(bio_err,
"didn't found starttls in server response,"
" try anyway...\n");
BIO_printf(sbio, "STARTTLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == PROTO_POP3) {
mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
if (mbuf_len == -1) {
BIO_printf(bio_err, "BIO_read failed\n");
goto end;
}
BIO_printf(sbio, "STLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == PROTO_IMAP) {
int foundit = 0;
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
BIO_gets(fbio, mbuf, BUFSIZZ);
/* STARTTLS command requires CAPABILITY... */
BIO_printf(fbio, ". CAPABILITY\r\n");
(void) BIO_flush(fbio);
/* wait for multi-line CAPABILITY response */
do {
mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
if (strstr(mbuf, "STARTTLS"))
foundit = 1;
}
while (mbuf_len > 3 && mbuf[0] != '.');
(void) BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
if (!foundit)
BIO_printf(bio_err,
"didn't found STARTTLS in server response,"
" try anyway...\n");
BIO_printf(sbio, ". STARTTLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == PROTO_FTP) {
BIO *fbio = BIO_new(BIO_f_buffer());
BIO_push(fbio, sbio);
/* wait for multi-line response to end from FTP */
do {
mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
}
while (mbuf_len > 3 && mbuf[3] == '-');
(void) BIO_flush(fbio);
BIO_pop(fbio);
BIO_free(fbio);
BIO_printf(sbio, "AUTH TLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
}
if (starttls_proto == PROTO_XMPP) {
int seen = 0;
BIO_printf(sbio, "<stream:stream "
"xmlns:stream='http://etherx.jabber.org/streams' "
"xmlns='jabber:client' to='%s' version='1.0'>", host);
seen = BIO_read(sbio, mbuf, BUFSIZZ);
mbuf[seen] = 0;
while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) {
if (strstr(mbuf, "/stream:features>"))
goto shut;
seen = BIO_read(sbio, mbuf, BUFSIZZ);
mbuf[seen] = 0;
}
BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
seen = BIO_read(sbio, sbuf, BUFSIZZ);
sbuf[seen] = 0;
if (!strstr(sbuf, "<proceed"))
goto shut;
mbuf[0] = 0;
}
for (;;) {
FD_ZERO(&readfds);
FD_ZERO(&writefds);
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
timeoutp = &timeout;
else
timeoutp = NULL;
if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
in_init = 1;
tty_on = 0;
} else {
tty_on = 1;
if (in_init) {
in_init = 0;
if (sess_out) {
BIO *stmp = BIO_new_file(sess_out, "w");
if (stmp) {
PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
BIO_free(stmp);
} else
BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
}
print_stuff(bio_c_out, con, full_log);
if (full_log > 0)
full_log--;
if (starttls_proto) {
BIO_write(bio_err, mbuf, mbuf_len);
/* We don't need to know any more */
starttls_proto = PROTO_OFF;
}
if (reconnect) {
reconnect--;
BIO_printf(bio_c_out, "drop connection and then reconnect\n");
SSL_shutdown(con);
SSL_set_connect_state(con);
shutdown(SSL_get_fd(con), SHUT_RD);
close(SSL_get_fd(con));
goto re_start;
}
}
}
ssl_pending = read_ssl && SSL_pending(con);
/* XXX should add tests for fd_set overflow */
if (!ssl_pending) {
if (tty_on) {
if (read_tty)
FD_SET(fileno(stdin), &readfds);
if (write_tty)
FD_SET(fileno(stdout), &writefds);
}
if (read_ssl)
FD_SET(SSL_get_fd(con), &readfds);
if (write_ssl)
FD_SET(SSL_get_fd(con), &writefds);
/* printf("mode tty(%d %d%d) ssl(%d%d)\n",
tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
i = select(width, &readfds, &writefds,
NULL, timeoutp);
if (i < 0) {
BIO_printf(bio_err, "bad select %d\n",
errno);
goto shut;
/* goto end; */
}
}
if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
BIO_printf(bio_err, "TIMEOUT occured\n");
}
if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
k = SSL_write(con, &(cbuf[cbuf_off]),
(unsigned int) cbuf_len);
switch (SSL_get_error(con, k)) {
case SSL_ERROR_NONE:
cbuf_off += k;
cbuf_len -= k;
if (k <= 0)
goto end;
/* we have done a write(con,NULL,0); */
if (cbuf_len <= 0) {
read_tty = 1;
write_ssl = 0;
} else { /* if (cbuf_len > 0) */
read_tty = 0;
write_ssl = 1;
}
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out, "write W BLOCK\n");
write_ssl = 1;
read_tty = 0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out, "write R BLOCK\n");
write_tty = 0;
read_ssl = 1;
write_ssl = 0;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out, "write X BLOCK\n");
break;
case SSL_ERROR_ZERO_RETURN:
if (cbuf_len != 0) {
BIO_printf(bio_c_out, "shutdown\n");
ret = 0;
goto shut;
} else {
read_tty = 1;
write_ssl = 0;
break;
}
case SSL_ERROR_SYSCALL:
if ((k != 0) || (cbuf_len != 0)) {
BIO_printf(bio_err, "write:errno=%d\n",
errno);
goto shut;
} else {
read_tty = 1;
write_ssl = 0;
}
break;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
}
} else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds)) {
i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len);
if (i <= 0) {
BIO_printf(bio_c_out, "DONE\n");
ret = 0;
goto shut;
/* goto end; */
}
sbuf_len -= i;
sbuf_off += i;
if (sbuf_len <= 0) {
read_ssl = 1;
write_tty = 0;
}
} else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
#ifdef RENEG
{
static int iiii;
if (++iiii == 52) {
SSL_renegotiate(con);
iiii = 0;
}
}
#endif
k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
switch (SSL_get_error(con, k)) {
case SSL_ERROR_NONE:
if (k <= 0)
goto end;
sbuf_off = 0;
sbuf_len = k;
read_ssl = 0;
write_tty = 1;
break;
case SSL_ERROR_WANT_WRITE:
BIO_printf(bio_c_out, "read W BLOCK\n");
write_ssl = 1;
read_tty = 0;
break;
case SSL_ERROR_WANT_READ:
BIO_printf(bio_c_out, "read R BLOCK\n");
write_tty = 0;
read_ssl = 1;
if ((read_tty == 0) && (write_ssl == 0))
write_ssl = 1;
break;
case SSL_ERROR_WANT_X509_LOOKUP:
BIO_printf(bio_c_out, "read X BLOCK\n");
break;
case SSL_ERROR_SYSCALL:
ret = errno;
BIO_printf(bio_err, "read:errno=%d\n", ret);
goto shut;
case SSL_ERROR_ZERO_RETURN:
BIO_printf(bio_c_out, "closed\n");
ret = 0;
goto shut;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
/* break; */
}
} else if (FD_ISSET(fileno(stdin), &readfds)) {
if (crlf) {
int j, lf_num;
i = read(fileno(stdin), cbuf, BUFSIZZ / 2);
lf_num = 0;
/* both loops are skipped when i <= 0 */
for (j = 0; j < i; j++)
if (cbuf[j] == '\n')
lf_num++;
for (j = i - 1; j >= 0; j--) {
cbuf[j + lf_num] = cbuf[j];
if (cbuf[j] == '\n') {
lf_num--;
i++;
cbuf[j + lf_num] = '\r';
}
}
assert(lf_num == 0);
} else
i = read(fileno(stdin), cbuf, BUFSIZZ);
if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
BIO_printf(bio_err, "DONE\n");
ret = 0;
goto shut;
}
if ((!c_ign_eof) && (cbuf[0] == 'R')) {
BIO_printf(bio_err, "RENEGOTIATING\n");
SSL_renegotiate(con);
cbuf_len = 0;
} else {
cbuf_len = i;
cbuf_off = 0;
}
write_ssl = 1;
read_tty = 0;
}
}
ret = 0;
shut:
if (in_init)
print_stuff(bio_c_out, con, full_log);
SSL_shutdown(con);
shutdown(SSL_get_fd(con), SHUT_RD);
close(SSL_get_fd(con));
end:
if (con != NULL) {
if (prexit != 0)
print_stuff(bio_c_out, con, 1);
SSL_free(con);
}
#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
free(next_proto.data);
#endif
if (ctx != NULL)
SSL_CTX_free(ctx);
if (cert)
X509_free(cert);
if (key)
EVP_PKEY_free(key);
free(pass);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
if (cbuf != NULL) {
OPENSSL_cleanse(cbuf, BUFSIZZ);
free(cbuf);
}
if (sbuf != NULL) {
OPENSSL_cleanse(sbuf, BUFSIZZ);
free(sbuf);
}
if (mbuf != NULL) {
OPENSSL_cleanse(mbuf, BUFSIZZ);
free(mbuf);
}
if (bio_c_out != NULL) {
BIO_free(bio_c_out);
bio_c_out = NULL;
}
return (ret);
}
int
tls_configure_server(struct tls *ctx)
{
EC_KEY *ecdh_key;
unsigned char sid[SSL_MAX_SSL_SESSION_ID_LENGTH];
if ((ctx->ssl_ctx = SSL_CTX_new(SSLv23_server_method())) == NULL) {
tls_set_errorx(ctx, "ssl context failure");
goto err;
}
if (tls_configure_ssl(ctx) != 0)
goto err;
if (tls_configure_keypair(ctx, ctx->ssl_ctx, ctx->config->keypair, 1) != 0)
goto err;
if (ctx->config->verify_client != 0) {
int verify = SSL_VERIFY_PEER;
if (ctx->config->verify_client == 1)
verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
if (tls_configure_ssl_verify(ctx, verify) == -1)
goto err;
}
if (ctx->config->dheparams == -1)
SSL_CTX_set_dh_auto(ctx->ssl_ctx, 1);
else if (ctx->config->dheparams == 1024)
SSL_CTX_set_dh_auto(ctx->ssl_ctx, 2);
if (ctx->config->ecdhecurve == -1) {
SSL_CTX_set_ecdh_auto(ctx->ssl_ctx, 1);
} else if (ctx->config->ecdhecurve != NID_undef) {
if ((ecdh_key = EC_KEY_new_by_curve_name(
ctx->config->ecdhecurve)) == NULL) {
tls_set_errorx(ctx, "failed to set ECDHE curve");
goto err;
}
SSL_CTX_set_options(ctx->ssl_ctx, SSL_OP_SINGLE_ECDH_USE);
SSL_CTX_set_tmp_ecdh(ctx->ssl_ctx, ecdh_key);
EC_KEY_free(ecdh_key);
}
if (ctx->config->ciphers_server == 1)
SSL_CTX_set_options(ctx->ssl_ctx,
SSL_OP_CIPHER_SERVER_PREFERENCE);
if (SSL_CTX_set_tlsext_status_cb(ctx->ssl_ctx, tls_ocsp_stapling_callback) != 1) {
tls_set_errorx(ctx, "ssl OCSP stapling setup failure");
goto err;
}
/*
* Set session ID context to a random value. We don't support
* persistent caching of sessions so it is OK to set a temporary
* session ID context that is valid during run time.
*/
if (!RAND_bytes(sid, sizeof(sid))) {
tls_set_errorx(ctx, "failed to generate session id");
goto err;
}
if (!SSL_CTX_set_session_id_context(ctx->ssl_ctx, sid, sizeof(sid))) {
tls_set_errorx(ctx, "failed to set session id context");
goto err;
}
return (0);
err:
return (-1);
}
bud_error_t bud_config_new_ssl_ctx(bud_config_t* config,
bud_context_t* context) {
SSL_CTX* ctx;
int ecdh_nid;
EC_KEY* ecdh;
bud_error_t err;
int options;
int r;
const char* ticket_key;
size_t max_len;
if (context->backend != NULL) {
if (context->backend->keepalive == -1)
context->backend->keepalive = kBudDefaultKeepalive;
r = bud_config_str_to_addr(context->backend->host,
context->backend->port,
&context->backend->addr);
if (r != 0)
return bud_error_num(kBudErrPton, r);
}
/* Decode ticket_key */
ticket_key = context->ticket_key == NULL ? config->frontend.ticket_key :
context->ticket_key;
if (ticket_key != NULL) {
max_len = sizeof(context->ticket_key_storage);
if (bud_base64_decode(context->ticket_key_storage,
max_len,
ticket_key,
strlen(ticket_key)) < max_len) {
return bud_error(kBudErrSmallTicketKey);
}
}
/* Choose method, tlsv1_2 by default */
if (config->frontend.method == NULL) {
if (strcmp(config->frontend.security, "tls1.1") == 0)
config->frontend.method = TLSv1_1_server_method();
else if (strcmp(config->frontend.security, "tls1.0") == 0)
config->frontend.method = TLSv1_server_method();
else if (strcmp(config->frontend.security, "tls1.2") == 0)
config->frontend.method = TLSv1_2_server_method();
else if (strcmp(config->frontend.security, "ssl3") == 0)
config->frontend.method = SSLv3_server_method();
else
config->frontend.method = SSLv23_server_method();
}
ctx = SSL_CTX_new(config->frontend.method);
if (ctx == NULL)
return bud_error_str(kBudErrNoMem, "SSL_CTX");
/* Disable sessions, they won't work with cluster anyway */
SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
if (config->frontend.max_send_fragment)
SSL_CTX_set_max_send_fragment(ctx, config->frontend.max_send_fragment);
if (ticket_key != NULL) {
SSL_CTX_set_tlsext_ticket_keys(ctx,
context->ticket_key_storage,
sizeof(context->ticket_key_storage));
}
/* ECDH curve selection */
if (context->ecdh != NULL || config->frontend.ecdh != NULL) {
if (context->ecdh != NULL)
ecdh_nid = OBJ_sn2nid(context->ecdh);
else
ecdh_nid = OBJ_sn2nid(config->frontend.ecdh);
if (ecdh_nid == NID_undef) {
ecdh = NULL;
err = bud_error_str(kBudErrECDHNotFound,
context->ecdh == NULL ? config->frontend.ecdh :
context->ecdh);
goto fatal;
}
ecdh = EC_KEY_new_by_curve_name(ecdh_nid);
if (ecdh == NULL) {
err = bud_error_str(kBudErrNoMem, "EC_KEY");
goto fatal;
}
SSL_CTX_set_options(ctx, SSL_OP_SINGLE_ECDH_USE);
SSL_CTX_set_tmp_ecdh(ctx, ecdh);
EC_KEY_free(ecdh);
}
ecdh = NULL;
/* Cipher suites */
if (context->ciphers != NULL)
SSL_CTX_set_cipher_list(ctx, context->ciphers);
else if (config->frontend.ciphers != NULL)
SSL_CTX_set_cipher_list(ctx, config->frontend.ciphers);
/* Disable SSL2 */
options = SSL_OP_NO_SSLv2 | SSL_OP_ALL;
if (!config->frontend.ssl3)
options |= SSL_OP_NO_SSLv3;
if (config->frontend.server_preference)
options |= SSL_OP_CIPHER_SERVER_PREFERENCE;
SSL_CTX_set_options(ctx, options);
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
if (config->context_count != 0) {
SSL_CTX_set_tlsext_servername_callback(ctx,
bud_config_select_sni_context);
SSL_CTX_set_tlsext_servername_arg(ctx, config);
}
#endif /* SSL_CTRL_SET_TLSEXT_SERVERNAME_CB */
#ifdef OPENSSL_NPN_NEGOTIATED
context->npn_line = bud_config_encode_npn(config,
context->npn,
&context->npn_line_len,
&err);
if (!bud_is_ok(err))
goto fatal;
if (context->npn_line != NULL) {
SSL_CTX_set_next_protos_advertised_cb(ctx,
bud_config_advertise_next_proto,
context);
}
#else /* !OPENSSL_NPN_NEGOTIATED */
err = bud_error(kBudErrNPNNotSupported);
goto fatal;
#endif /* OPENSSL_NPN_NEGOTIATED */
SSL_CTX_set_tlsext_status_cb(ctx, bud_client_stapling_cb);
context->ctx = ctx;
return bud_ok();
fatal:
if (ecdh != NULL)
EC_KEY_free(ecdh);
SSL_CTX_free(ctx);
return err;
}
/*
* Configure callbacks and other properties that can't be set directly
* in the server/client CONF.
*/
static void configure_handshake_ctx(SSL_CTX *server_ctx, SSL_CTX *server2_ctx,
SSL_CTX *client_ctx,
const SSL_TEST_CTX *test,
const SSL_TEST_EXTRA_CONF *extra,
CTX_DATA *server_ctx_data,
CTX_DATA *server2_ctx_data,
CTX_DATA *client_ctx_data)
{
unsigned char *ticket_keys;
size_t ticket_key_len;
TEST_check(SSL_CTX_set_max_send_fragment(server_ctx,
test->max_fragment_size) == 1);
if (server2_ctx != NULL) {
TEST_check(SSL_CTX_set_max_send_fragment(server2_ctx,
test->max_fragment_size) == 1);
}
TEST_check(SSL_CTX_set_max_send_fragment(client_ctx,
test->max_fragment_size) == 1);
switch (extra->client.verify_callback) {
case SSL_TEST_VERIFY_ACCEPT_ALL:
SSL_CTX_set_cert_verify_callback(client_ctx, &verify_accept_cb,
NULL);
break;
case SSL_TEST_VERIFY_REJECT_ALL:
SSL_CTX_set_cert_verify_callback(client_ctx, &verify_reject_cb,
NULL);
break;
case SSL_TEST_VERIFY_NONE:
break;
}
/* link the two contexts for SNI purposes */
switch (extra->server.servername_callback) {
case SSL_TEST_SERVERNAME_IGNORE_MISMATCH:
SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_ignore_cb);
SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
break;
case SSL_TEST_SERVERNAME_REJECT_MISMATCH:
SSL_CTX_set_tlsext_servername_callback(server_ctx, servername_reject_cb);
SSL_CTX_set_tlsext_servername_arg(server_ctx, server2_ctx);
break;
case SSL_TEST_SERVERNAME_CB_NONE:
break;
}
if (extra->server.cert_status != SSL_TEST_CERT_STATUS_NONE) {
SSL_CTX_set_tlsext_status_type(client_ctx, TLSEXT_STATUSTYPE_ocsp);
SSL_CTX_set_tlsext_status_cb(client_ctx, client_ocsp_cb);
SSL_CTX_set_tlsext_status_arg(client_ctx, NULL);
SSL_CTX_set_tlsext_status_cb(server_ctx, server_ocsp_cb);
SSL_CTX_set_tlsext_status_arg(server_ctx,
((extra->server.cert_status == SSL_TEST_CERT_STATUS_GOOD_RESPONSE)
? &dummy_ocsp_resp_good_val : &dummy_ocsp_resp_bad_val));
}
/*
* The initial_ctx/session_ctx always handles the encrypt/decrypt of the
* session ticket. This ticket_key callback is assigned to the second
* session (assigned via SNI), and should never be invoked
*/
if (server2_ctx != NULL)
SSL_CTX_set_tlsext_ticket_key_cb(server2_ctx,
do_not_call_session_ticket_cb);
if (extra->server.broken_session_ticket) {
SSL_CTX_set_tlsext_ticket_key_cb(server_ctx, broken_session_ticket_cb);
}
#ifndef OPENSSL_NO_NEXTPROTONEG
if (extra->server.npn_protocols != NULL) {
parse_protos(extra->server.npn_protocols,
&server_ctx_data->npn_protocols,
&server_ctx_data->npn_protocols_len);
SSL_CTX_set_npn_advertised_cb(server_ctx, server_npn_cb,
server_ctx_data);
}
if (extra->server2.npn_protocols != NULL) {
parse_protos(extra->server2.npn_protocols,
&server2_ctx_data->npn_protocols,
&server2_ctx_data->npn_protocols_len);
TEST_check(server2_ctx != NULL);
SSL_CTX_set_npn_advertised_cb(server2_ctx, server_npn_cb,
server2_ctx_data);
}
if (extra->client.npn_protocols != NULL) {
parse_protos(extra->client.npn_protocols,
&client_ctx_data->npn_protocols,
&client_ctx_data->npn_protocols_len);
SSL_CTX_set_next_proto_select_cb(client_ctx, client_npn_cb,
client_ctx_data);
}
#endif
if (extra->server.alpn_protocols != NULL) {
parse_protos(extra->server.alpn_protocols,
&server_ctx_data->alpn_protocols,
&server_ctx_data->alpn_protocols_len);
SSL_CTX_set_alpn_select_cb(server_ctx, server_alpn_cb, server_ctx_data);
}
if (extra->server2.alpn_protocols != NULL) {
TEST_check(server2_ctx != NULL);
parse_protos(extra->server2.alpn_protocols,
&server2_ctx_data->alpn_protocols,
&server2_ctx_data->alpn_protocols_len);
SSL_CTX_set_alpn_select_cb(server2_ctx, server_alpn_cb, server2_ctx_data);
}
if (extra->client.alpn_protocols != NULL) {
unsigned char *alpn_protos = NULL;
size_t alpn_protos_len;
parse_protos(extra->client.alpn_protocols,
&alpn_protos, &alpn_protos_len);
/* Reversed return value convention... */
TEST_check(SSL_CTX_set_alpn_protos(client_ctx, alpn_protos,
alpn_protos_len) == 0);
OPENSSL_free(alpn_protos);
}
/*
* Use fixed session ticket keys so that we can decrypt a ticket created with
* one CTX in another CTX. Don't address server2 for the moment.
*/
ticket_key_len = SSL_CTX_set_tlsext_ticket_keys(server_ctx, NULL, 0);
ticket_keys = OPENSSL_zalloc(ticket_key_len);
TEST_check(ticket_keys != NULL);
TEST_check(SSL_CTX_set_tlsext_ticket_keys(server_ctx, ticket_keys,
ticket_key_len) == 1);
OPENSSL_free(ticket_keys);
/* The default log list includes EC keys, so CT can't work without EC. */
#if !defined(OPENSSL_NO_CT) && !defined(OPENSSL_NO_EC)
TEST_check(SSL_CTX_set_default_ctlog_list_file(client_ctx));
switch (extra->client.ct_validation) {
case SSL_TEST_CT_VALIDATION_PERMISSIVE:
TEST_check(SSL_CTX_enable_ct(client_ctx, SSL_CT_VALIDATION_PERMISSIVE));
break;
case SSL_TEST_CT_VALIDATION_STRICT:
TEST_check(SSL_CTX_enable_ct(client_ctx, SSL_CT_VALIDATION_STRICT));
break;
case SSL_TEST_CT_VALIDATION_NONE:
break;
}
#endif
}
static int
tls_connect_common(struct tls *ctx, const char *servername)
{
union tls_addr addrbuf;
int rv = -1;
if ((ctx->flags & TLS_CLIENT) == 0) {
tls_set_errorx(ctx, "not a client context");
goto err;
}
if (servername != NULL) {
if ((ctx->servername = strdup(servername)) == NULL) {
tls_set_errorx(ctx, "out of memory");
goto err;
}
}
if ((ctx->ssl_ctx = SSL_CTX_new(SSLv23_client_method())) == NULL) {
tls_set_errorx(ctx, "ssl context failure");
goto err;
}
if (tls_configure_ssl(ctx, ctx->ssl_ctx) != 0)
goto err;
if (tls_configure_ssl_keypair(ctx, ctx->ssl_ctx,
ctx->config->keypair, 0) != 0)
goto err;
if (ctx->config->verify_name) {
if (servername == NULL) {
tls_set_errorx(ctx, "server name not specified");
goto err;
}
}
if (tls_configure_ssl_verify(ctx, ctx->ssl_ctx, SSL_VERIFY_PEER) == -1)
goto err;
if (ctx->config->ecdhecurves != NULL) {
if (SSL_CTX_set1_groups(ctx->ssl_ctx, ctx->config->ecdhecurves,
ctx->config->ecdhecurves_len) != 1) {
tls_set_errorx(ctx, "failed to set ecdhe curves");
goto err;
}
}
if (SSL_CTX_set_tlsext_status_cb(ctx->ssl_ctx, tls_ocsp_verify_cb) != 1) {
tls_set_errorx(ctx, "ssl OCSP verification setup failure");
goto err;
}
if ((ctx->ssl_conn = SSL_new(ctx->ssl_ctx)) == NULL) {
tls_set_errorx(ctx, "ssl connection failure");
goto err;
}
if (SSL_set_app_data(ctx->ssl_conn, ctx) != 1) {
tls_set_errorx(ctx, "ssl application data failure");
goto err;
}
if (SSL_set_tlsext_status_type(ctx->ssl_conn, TLSEXT_STATUSTYPE_ocsp) != 1) {
tls_set_errorx(ctx, "ssl OCSP extension setup failure");
goto err;
}
/*
* RFC4366 (SNI): Literal IPv4 and IPv6 addresses are not
* permitted in "HostName".
*/
if (servername != NULL &&
inet_pton(AF_INET, servername, &addrbuf) != 1 &&
inet_pton(AF_INET6, servername, &addrbuf) != 1) {
if (SSL_set_tlsext_host_name(ctx->ssl_conn, servername) == 0) {
tls_set_errorx(ctx, "server name indication failure");
goto err;
}
}
ctx->state |= TLS_CONNECTED;
rv = 0;
err:
return (rv);
}
