2 * Copyright (C) 2016 Red Hat, Inc.
4 * Author: Nikos Mavrogiannopoulos
6 * This file is part of GnuTLS.
8 * GnuTLS is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
13 * GnuTLS is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with GnuTLS; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
30 /* In this test we check whether the server will bail out after receiving
31 * a bunch of warning alerts. That is to avoid DoS due to the assymetry of
32 * cost of sending an alert vs the cost of receiving.
37 /* socketpair isn't supported on Win32. */
38 int main(int argc, char **argv)
46 #include <sys/types.h>
47 #include <sys/socket.h>
52 #include <gnutls/gnutls.h>
55 #include "cert-common.h"
59 static void tls_log_func(int level, const char *str)
61 fprintf(stderr, "%s |<%d>| %s", child ? "server" : "client", level,
65 static unsigned char tls_hello[] =
66 "\x16\x03\x01\x01\x38\x01\x00\x01"
67 "\x34\x03\x03\xfc\x77\xa8\xc7\x46"
68 "\xf7\xfd\x04\x5b\x3c\xc6\xfa\xa4"
69 "\xea\x3e\xfa\x76\x99\xfe\x1a\x2e"
70 "\xe0\x79\x17\xb2\x27\x06\xc4\x5c"
71 "\xd8\x78\x31\x00\x00\xb6\xc0\x30"
72 "\xc0\x2c\xc0\x28\xc0\x24\xc0\x14"
73 "\xc0\x0a\x00\xa5\x00\xa3\x00\xa1"
74 "\x00\x9f\x00\x6b\x00\x6a\x00\x69"
75 "\x00\x68\x00\x39\x00\x38\x00\x37"
76 "\x00\x36\x00\x88\x00\x87\x00\x86"
77 "\x00\x85\xc0\x32\xc0\x2e\xc0\x2a"
78 "\xc0\x26\xc0\x0f\xc0\x05\x00\x9d"
79 "\x00\x3d\x00\x35\x00\x84\xc0\x2f"
80 "\xc0\x2b\xc0\x27\xc0\x23\xc0\x13"
81 "\xc0\x09\x00\xa4\x00\xa2\x00\xa0"
82 "\x00\x9e\x00\x67\x00\x40\x00\x3f"
83 "\x00\x3e\x00\x33\x00\x32\x00\x31"
84 "\x00\x30\x00\x9a\x00\x99\x00\x98"
85 "\x00\x97\x00\x45\x00\x44\x00\x43"
86 "\x00\x42\xc0\x31\xc0\x2d\xc0\x29"
87 "\xc0\x25\xc0\x0e\xc0\x04\x00\x9c"
88 "\x00\x3c\x00\x2f\x00\x96\x00\x41"
89 "\x00\x07\xc0\x11\xc0\x07\xc0\x0c"
90 "\xc0\x02\x00\x05\x00\x04\xc0\x12"
91 "\xc0\x08\x00\x16\x00\x13\x00\x10"
92 "\x00\x0d\xc0\x0d\xc0\x03\x00\x0a"
93 "\x00\x15\x00\x12\x00\x0f\x00\x0c"
94 "\x00\x09\x00\xff\x01\x00\x00\x55"
95 "\x00\x0b\x00\x04\x03\x00\x01\x02"
96 "\x00\x0a\x00\x1c\x00\x1a\x00\x17"
97 "\x00\x19\x00\x1c\x00\x1b\x00\x18"
98 "\x00\x1a\x00\x16\x00\x0e\x00\x0d"
99 "\x00\x0b\x00\x0c\x00\x09\x00\x0a"
100 "\x00\x23\x00\x00\x00\x0d\x00\x20"
101 "\x00\x1e\x06\x01\x06\x02\x06\x03"
102 "\x05\x01\x05\x02\x05\x03\x04\x01"
103 "\x04\x02\x04\x03\x03\x01\x03\x02"
104 "\x03\x03\x02\x01\x02\x02\x02\x03"
105 "\x00\x0f\x00\x01\x01";
107 static unsigned char tls_alert[] =
108 "\x15\x03\x03\x00\x02\x00\x0A";
110 static void client(int sd)
116 /* send a TLS hello, and then a list of warning alerts */
118 ret = send(sd, tls_hello, sizeof(tls_hello)-1, 0);
120 fail("error sending hello\n");
122 ret = recv(sd, buf, sizeof(buf), 0);
124 fail("error receiving hello\n");
126 for (i=0;i<128;i++) {
127 ret = send(sd, tls_alert, sizeof(tls_alert)-1, 0);
129 fail("error sending hello\n");
135 static void server(int sd)
137 gnutls_certificate_credentials_t x509_cred;
138 gnutls_session_t session;
142 /* this must be called once in the program
146 gnutls_global_set_log_function(tls_log_func);
148 gnutls_global_set_log_level(6);
150 gnutls_certificate_allocate_credentials(&x509_cred);
151 gnutls_certificate_set_x509_trust_mem(x509_cred, &ca3_cert,
152 GNUTLS_X509_FMT_PEM);
154 gnutls_certificate_set_x509_key_mem(x509_cred, &server_ca3_localhost_cert,
156 GNUTLS_X509_FMT_PEM);
159 success("Launched, generating DH parameters...\n");
161 gnutls_init(&session, GNUTLS_SERVER);
163 /* avoid calling all the priority functions, since the defaults
166 gnutls_priority_set_direct(session, "NORMAL", NULL);
168 gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
170 gnutls_transport_set_int(session, sd);
173 ret = gnutls_handshake(session);
176 fail("Too many loops in the handshake!\n");
177 } while (ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_WARNING_ALERT_RECEIVED);
180 fail("server: Handshake succeeded unexpectedly\n");
184 gnutls_deinit(session);
186 gnutls_certificate_free_credentials(x509_cred);
188 gnutls_global_deinit();
191 success("server: finished\n");
200 err = socketpair(AF_UNIX, SOCK_STREAM, 0, sockets);
202 perror("socketpair");
203 fail("socketpair failed\n");