/* A little hacked up program that makes a TCP/IP call and reads a script to
drive it, for testing Exim server code running as a daemon. It's got a bit
messy with the addition of support for either OpenSSL or GnuTLS. The code for
-those was hacked out of Exim itself, then code for OCSP stapling was ripped
-from the openssl ocsp and s_client utilities. */
+those was hacked out of Exim itself, then code for OpenSSL OCSP stapling was
+ripped from the openssl ocsp and s_client utilities. */
/* ANSI C standard includes */
latter needs a whole pile of tables. */
#ifdef HAVE_OPENSSL
-#define HAVE_TLS
-#include <openssl/crypto.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/ssl.h>
-#include <openssl/err.h>
-#include <openssl/rand.h>
-#include <openssl/ocsp.h>
-
-char * ocsp_stapling = NULL;
+# define HAVE_TLS
+# include <openssl/crypto.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/ssl.h>
+# include <openssl/err.h>
+# include <openssl/rand.h>
+# include <openssl/ocsp.h>
#endif
#ifdef HAVE_GNUTLS
-#define HAVE_TLS
-#include <gnutls/gnutls.h>
-#include <gnutls/x509.h>
+# define HAVE_TLS
+# include <gnutls/gnutls.h>
+# include <gnutls/x509.h>
+# if GNUTLS_VERSION_NUMBER >= 0x030103
+# define HAVE_OCSP
+# include <gnutls/ocsp.h>
+# endif
-#define DH_BITS 768
+# define DH_BITS 768
/* Local static variables for GNUTLS */
static const int comp_priority[16] = { GNUTLS_COMP_NULL, 0 };
static const int cert_type_priority[16] = { GNUTLS_CRT_X509, 0 };
-#endif
+#endif /*HAVE_GNUTLS*/
+#ifdef HAVE_TLS
+char * ocsp_stapling = NULL;
+#endif
+
/*************************************************
* SIGALRM handler - crash out *
* Start an OpenSSL TLS session *
*************************************************/
-int tls_start(int sock, SSL **ssl, SSL_CTX *ctx)
+int
+tls_start(int sock, SSL **ssl, SSL_CTX *ctx)
{
int rc;
static const char *sid_ctx = "exim";
fprintf(stderr, "GnuTLS connection error: %s:", prefix);
if (err != 0) fprintf(stderr, " %s", gnutls_strerror(err));
fprintf(stderr, "\n");
-exit(1);
+exit(98);
}
if (fd < 0)
{
fprintf(stderr, "Failed to open spool/gnutls-params: %s\n", strerror(errno));
- exit(1);
+ exit(97);
}
if (fstat(fd, &statbuf) < 0)
/* Associate the parameters with the x509 credentials structure. */
gnutls_certificate_set_dh_params(x509_cred, dh_params);
+
+/* set the CA info for server-cert verify */
+if (ocsp_stapling)
+ gnutls_certificate_set_x509_trust_file(x509_cred, ocsp_stapling,
+ GNUTLS_X509_FMT_PEM);
}
char *end = NULL;
int argi = 1;
int host_af, port, s_len, rc, sock, save_errno;
-int timeout = 1;
+int timeout = 5;
int tls_active = 0;
int sent_starttls = 0;
int tls_on_connect = 0;
strcmp(argv[argi], "--help") == 0 ||
strcmp(argv[argi], "-h") == 0)
{
- printf(HELP_MESSAGE);
+ puts(HELP_MESSAGE);
exit(0);
}
if (strcmp(argv[argi], "-tls-on-connect") == 0)
tls_on_connect = 1;
argi++;
}
-#ifdef HAVE_OPENSSL
+#ifdef HAVE_TLS
else if (strcmp(argv[argi], "-ocsp") == 0)
{
if (argc < ++argi + 1)
{
fprintf(stderr, "Missing required certificate file for ocsp option\n");
- exit(1);
+ exit(96);
}
ocsp_stapling = argv[argi++];
}
+
#endif
else if (argv[argi][1] == 't' && isdigit(argv[argi][2]))
{
{
fprintf(stderr, "Failed to parse seconds from option <%s>\n",
argv[argi]);
- exit(1);
+ exit(95);
}
if (tmplong > 10000L)
{
- fprintf(stderr, "Unreasonably long wait of %d seconds requested\n",
+ fprintf(stderr, "Unreasonably long wait of %ld seconds requested\n",
tmplong);
- exit(1);
+ exit(94);
}
if (tmplong < 0L)
{
- fprintf(stderr, "Timeout must not be negative (%d)\n", tmplong);
- exit(1);
+ fprintf(stderr, "Timeout must not be negative (%ld)\n", tmplong);
+ exit(93);
}
timeout = (int) tmplong;
argi++;
else
{
fprintf(stderr, "Unrecognized option %s\n", argv[argi]);
- exit(1);
+ exit(92);
}
}
if (argc < argi+1)
{
fprintf(stderr, "No IP address given\n");
- exit(1);
+ exit(91);
}
address = argv[argi++];
if (argc < argi+1)
{
fprintf(stderr, "No port number given\n");
- exit(1);
+ exit(90);
}
port = atoi(argv[argi++]);
if (sock < 0)
{
printf("socket creation failed: %s\n", strerror(errno));
- exit(1);
+ exit(89);
}
/* Bind to a specific interface if requested. On an IPv6 system, this has
if (inet_pton(AF_INET6, interface, &s_in6.sin6_addr) != 1)
{
printf("Unable to parse \"%s\"", interface);
- exit(1);
+ exit(88);
}
}
else
{
printf("Unable to bind outgoing SMTP call to %s: %s",
interface, strerror(errno));
- exit(1);
+ exit(87);
}
}
}
if (inet_pton(host_af, address, &s_in6.sin6_addr) != 1)
{
printf("Unable to parse \"%s\"", address);
- exit(1);
+ exit(86);
}
}
else
if (rc < 0)
{
close(sock);
- printf("failed: %s\n", strerror(save_errno));
- exit(1);
+ printf("connect failed: %s\n", strerror(save_errno));
+ exit(85);
}
printf("connected\n");
if (ctx == NULL)
{
printf ("SSL_CTX_new failed\n");
- exit(1);
+ exit(84);
}
if (certfile != NULL)
if (!SSL_CTX_use_certificate_file(ctx, certfile, SSL_FILETYPE_PEM))
{
printf("SSL_CTX_use_certificate_file failed\n");
- exit(1);
+ exit(83);
}
printf("Certificate file = %s\n", certfile);
}
if (!SSL_CTX_use_PrivateKey_file(ctx, keyfile, SSL_FILETYPE_PEM))
{
printf("SSL_CTX_use_PrivateKey_file failed\n");
- exit(1);
+ exit(82);
}
printf("Key file = %s\n", keyfile);
}
if (keyfile != NULL) printf("Key file = %s\n", keyfile);
tls_init(certfile, keyfile);
tls_session = tls_session_init();
+#ifdef HAVE_OCSP
+if (ocsp_stapling)
+ gnutls_ocsp_status_request_enable_client(tls_session, NULL, 0, NULL);
+#endif
gnutls_transport_set_ptr(tls_session, (gnutls_transport_ptr)sock);
/* When the server asks for a certificate and the client does not have one,
if (!tls_active)
printf("Failed to start TLS\n");
+ #if defined(HAVE_GNUTLS) && defined(HAVE_OCSP)
+ else if ( ocsp_stapling
+ && gnutls_ocsp_status_request_is_checked(tls_session, 0) == 0)
+ printf("Failed to verify certificate status\n");
+ #endif
else
printf("Succeeded in starting TLS\n");
}
if (rc < 0)
{
printf("Read error %s\n", strerror(errno));
- exit(1) ;
+ exit(81) ;
}
else if (rc == 0)
{
printf("Unexpected EOF read\n");
close(sock);
- exit(1);
+ exit(80);
}
else
{
if (strncmp(lineptr, outbuffer + 4, (int)strlen(outbuffer) - 4) != 0)
{
printf("\n******** Input mismatch ********\n");
- exit(1);
+ exit(79);
}
#ifdef HAVE_TLS
{
if (lineptr[0] == '2')
{
+int rc;
+ unsigned int verify;
+
printf("Attempting to start TLS\n");
fflush(stdout);
printf("Failed to start TLS\n");
fflush(stdout);
}
+ #ifdef HAVE_GNUTLS
+ else if (ocsp_stapling)
+ {
+ if ((rc= gnutls_certificate_verify_peers2(tls_session, &verify)) < 0)
+ {
+ printf("Failed to verify certificate: %s\n", gnutls_strerror(rc));
+ fflush(stdout);
+ }
+ else if (verify & (GNUTLS_CERT_INVALID|GNUTLS_CERT_REVOKED))
+ {
+ printf("Bad certificate\n");
+ fflush(stdout);
+ }
+ #ifdef HAVE_OCSP
+ else if (gnutls_ocsp_status_request_is_checked(tls_session, 0) == 0)
+ {
+ printf("Failed to verify certificate status\n");
+ {
+ gnutls_datum_t stapling;
+ gnutls_ocsp_resp_t resp;
+ gnutls_datum_t printed;
+ if ( (rc= gnutls_ocsp_status_request_get(tls_session, &stapling)) == 0
+ && (rc= gnutls_ocsp_resp_init(&resp)) == 0
+ && (rc= gnutls_ocsp_resp_import(resp, &stapling)) == 0
+ && (rc= gnutls_ocsp_resp_print(resp, GNUTLS_OCSP_PRINT_FULL, &printed)) == 0
+ )
+ {
+ fprintf(stderr, "%.4096s", printed.data);
+ gnutls_free(printed.data);
+ }
+ else
+ (void) fprintf(stderr,"ocsp decode: %s", gnutls_strerror(rc));
+ }
+ fflush(stdout);
+ }
+ #endif
+ }
+ #endif
else
printf("Succeeded in starting TLS\n");
}
{
printf("Unconsumed input: %s", inptr);
printf(" About to send: %s\n", outbuffer);
- exit(1);
+ exit(78);
}
#ifdef HAVE_TLS
if (!tls_active)
{
printf("STOPTLS read when TLS not active\n");
- exit(1);
+ exit(77);
}
printf("Shutting down TLS encryption\n");
if (rc < 0)
{
printf("GnuTLS write error: %s\n", gnutls_strerror(rc));
- exit(1);
+ exit(76);
}
#endif
}
if (rc < 0)
{
printf("Write error: %s\n", strerror(errno));
- exit(1);
+ exit(75);
}
}
}
git://git.exim.org / users / jgh / exim.git / blobdiff