src/core/sipe-tls-tester.c

   1 /**
   2  * @file sipe-tls-tester.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2011 SIPE Project <http://sipe.sourceforge.net/>
   7  *
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  *
  24  * TLS handshake implementation (sipe-tls.c) tester
  25  *
  26  * Example test setup using OpenSSL:
  27  *
  28  * - Setting up the server certificate:
  29  *
  30  *    $ openssl req -new -keyout server.pem -out server.req
  31  *    $ openssl x509 -req -in server.req -signkey server.pem -out server.cert
  32  *
  33  * - Running the test server in one shell:
  34  *
  35  *    $ openssl s_server -accept 8443 -debug -tls1 -cert server.cert \
  36  *              -key server.pem
  37  *
  38  * - Running the test program in another shell:
  39  *
  40  *    $ sipe_tls_tester
  41  *
  42  *   You can add <host>[:<port>] to connect to a server on another machine
  43  */
  44
  45 #include <stdlib.h>
  46 #include <string.h>
  47 #include <stdio.h>
  48 #include <stdarg.h>
  49 #include <time.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <sys/types.h>
  53 #include <sys/socket.h>
  54 #include <netdb.h>
  55
  56 #include <glib.h>
  57
  58 #include "sipe-common.h"
  59 #include "sipe-backend.h"
  60 #include "sipe-cert-crypto.h"
  61 #include "sipe-crypt.h"
  62 #include "sipe-tls.h"
  63
  64 /*
  65  * Stubs
  66  */
  67 gboolean sipe_backend_debug_enabled(void)
  68 {
  69         return(TRUE);
  70 }
  71
  72 void sipe_backend_debug_literal(sipe_debug_level level,
  73                                 const gchar *msg)
  74 {
  75         printf("DEBUG(%d): %s\n", level, msg);
  76 }
  77
  78 void sipe_backend_debug(sipe_debug_level level,
  79                         const gchar *format,
  80                         ...)
  81 {
  82         va_list ap;
  83         gchar *newformat = g_strdup_printf("DEBUG(%d): %s\n", level, format);
  84
  85         va_start(ap, format);
  86         vprintf(newformat, ap);
  87         va_end(ap);
  88
  89         g_free(newformat);
  90 }
  91
  92 /*
  93  * Tester code
  94  */
  95 static int tls_connect(const gchar *param)
  96 {
  97         gchar **parts = g_strsplit(param, ":", 2);
  98         int fd = -1;
  99
 100         if (parts[0]) {
 101                 const gchar *host = parts[0];
 102                 const gchar *port = parts[1] ? parts[1] : "443";
 103                 struct addrinfo hints;
 104                 struct addrinfo *result;
 105                 int status;
 106
 107                 printf("TLS connect to host '%s', port %s...\n",
 108                        host, port);
 109
 110                 memset(&hints, 0, sizeof(struct addrinfo));
 111                 hints.ai_family = AF_UNSPEC;
 112                 hints.ai_socktype = SOCK_STREAM;
 113                 hints.ai_flags = 0;
 114                 hints.ai_protocol = 0;
 115                 status = getaddrinfo(host, port, &hints, &result);
 116
 117                 if (status == 0) {
 118                         struct addrinfo *rp;
 119
 120                         for (rp = result; rp != NULL; rp = rp->ai_next) {
 121                                 int sock = socket(rp->ai_family,
 122                                                   rp->ai_socktype,
 123                                                   rp->ai_protocol);
 124
 125                                 if (sock < 0) continue;
 126
 127                                 if (connect(sock,
 128                                             rp->ai_addr,
 129                                             rp->ai_addrlen) >= 0) {
 130                                         /* connected */
 131                                         printf("connected to host '%s', port %s.\n",
 132                                                host, port);
 133                                         fd = sock;
 134                                         break;
 135                                 }
 136                                 fprintf(stderr, "failed to connect: %s\n",
 137                                         strerror(errno));
 138
 139                                 close(sock);
 140                         }
 141                         freeaddrinfo(result);
 142
 143                         if (rp == NULL) {
 144                                 fprintf(stderr, "couldn't connect to host '%s'!\n",
 145                                         host);
 146                         }
 147                 } else {
 148                         fprintf(stderr, "couldn't find host '%s': %s\n",
 149                                 host, gai_strerror(status));
 150                 }
 151         } else {
 152                 fprintf(stderr, "corrupted host[:port] '%s'!\n", param);
 153         }
 154         g_strfreev(parts);
 155
 156         return(fd);
 157 }
 158
 159 int main(int argc, char *argv[])
 160 {
 161         int fd;
 162
 163         sipe_crypto_init(FALSE);
 164         srand(time(NULL));
 165
 166         fd = tls_connect((argc > 1) ? argv[1] : "localhost:8443");
 167         if (fd >= 0) {
 168                 struct sipe_tls_state *state = sipe_tls_start(NULL);
 169
 170                 if (state) {
 171                         printf("starting TLS handshake...\n");
 172
 173                         sipe_tls_free(state);
 174                 }
 175
 176                 close(fd);
 177         }
 178
 179         sipe_crypto_shutdown();
 180         return(0);
 181 }
 182
 183 /*
 184   Local Variables:
 185   mode: c
 186   c-file-style: "bsd"
 187   indent-tabs-mode: t
 188   tab-width: 8
 189   End:
 190 */