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[minix.git] / crypto / external / bsd / openssl / dist / ssl / ssl_task.c
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1 /* ssl/ssl_task.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
59 /* VMS */
60 /*-
61 * DECnet object for servicing SSL. We accept the inbound and speak a
62 * simple protocol for multiplexing the 2 data streams (application and
63 * ssl data) over this logical link.
65 * Logical names:
66 * SSL_CIPHER Defines a list of cipher specifications the server
67 * will support in order of preference.
68 * SSL_SERVER_CERTIFICATE
69 * Points to PEM (privacy enhanced mail) file that
70 * contains the server certificate and private password.
71 * SYS$NET Logical created by netserver.exe as hook for completing
72 * DECnet logical link.
74 * Each NSP message sent over the DECnet link has the following structure:
75 * struct rpc_msg {
76 * char channel;
77 * char function;
78 * short length;
79 * char data[MAX_DATA];
80 * } msg;
82 * The channel field designates the virtual data stream this message applies
83 * to and is one of:
84 * A - Application data (payload).
85 * R - Remote client connection that initiated the SSL connection. Encrypted
86 * data is sent over this connection.
87 * G - General data, reserved for future use.
89 * The data streams are half-duplex read/write and have following functions:
90 * G - Get, requests that up to msg.length bytes of data be returned. The
91 * data is returned in the next 'C' function response that matches the
92 * requesting channel.
93 * P - Put, requests that the first msg.length bytes of msg.data be appended
94 * to the designated stream.
95 * C - Confirms a get or put. Every get and put will get a confirm response,
96 * you cannot initiate another function on a channel until the previous
97 * operation has been confirmed.
99 * The 2 channels may interleave their operations, for example:
100 * Server msg Client msg
101 * A, Get, 4092 ---->
102 * <---- R, get, 4092
103 * R, Confirm, {hello} ---->
104 * <---- R, put, {srv hello}
105 * R, Confirm, 0 ---->
106 * . (SSL handshake completed)
107 * . (read first app data).
108 * <---- A, confirm, {http data}
109 * A, Put, {http data} ---->
110 * <---- A, confirm, 0
112 * The length field is not permitted to be larger that 4092 bytes.
114 * Author: Dave Jones
115 * Date: 22-JUL-1996
117 #include <stdlib.h>
118 #include <stdio.h>
119 #include <iodef.h> /* VMS IO$_ definitions */
120 #include <descrip.h> /* VMS string descriptors */
121 extern int SYS$QIOW(), SYS$ASSIGN();
122 int LIB$INIT_TIMER(), LIB$SHOW_TIMER();
124 #include <string.h> /* from ssltest.c */
125 #include <errno.h>
127 #include "e_os.h"
129 #include <openssl/buffer.h>
130 #include <openssl/x509.h>
131 #include <openssl/ssl.h>
132 #include <openssl/err.h>
134 int MS_CALLBACK verify_callback(int ok, X509 *xs, X509 *xi, int depth,
135 int error);
136 BIO *bio_err = NULL;
137 BIO *bio_stdout = NULL;
138 BIO_METHOD *BIO_s_rtcp();
140 static char *cipher = NULL;
141 int verbose = 1;
142 #ifdef FIONBIO
143 static int s_nbio = 0;
144 #endif
145 #define TEST_SERVER_CERT "SSL_SERVER_CERTIFICATE"
146 /*************************************************************************/
147 /* Should have member alignment inhibited */
148 struct rpc_msg {
149 /* 'A'-app data. 'R'-remote client 'G'-global */
150 char channel;
151 /* 'G'-get, 'P'-put, 'C'-confirm, 'X'-close */
152 char function;
153 /* Amount of data returned or max to return */
154 unsigned short int length;
155 /* variable data */
156 char data[4092];
158 #define RPC_HDR_SIZE (sizeof(struct rpc_msg) - 4092)
160 static $DESCRIPTOR(sysnet, "SYS$NET");
161 typedef unsigned short io_channel;
163 struct io_status {
164 unsigned short status;
165 unsigned short count;
166 unsigned long stsval;
168 int doit(io_channel chan, SSL_CTX *s_ctx);
169 /*****************************************************************************/
171 * Decnet I/O routines.
173 static int get(io_channel chan, char *buffer, int maxlen, int *length)
175 int status;
176 struct io_status iosb;
177 status = SYS$QIOW(0, chan, IO$_READVBLK, &iosb, 0, 0,
178 buffer, maxlen, 0, 0, 0, 0);
179 if ((status & 1) == 1)
180 status = iosb.status;
181 if ((status & 1) == 1)
182 *length = iosb.count;
183 return status;
186 static int put(io_channel chan, char *buffer, int length)
188 int status;
189 struct io_status iosb;
190 status = SYS$QIOW(0, chan, IO$_WRITEVBLK, &iosb, 0, 0,
191 buffer, length, 0, 0, 0, 0);
192 if ((status & 1) == 1)
193 status = iosb.status;
194 return status;
197 /***************************************************************************/
199 * Handle operations on the 'G' channel.
201 static int general_request(io_channel chan, struct rpc_msg *msg, int length)
203 return 48;
206 /***************************************************************************/
207 int main(int argc, char **argv)
209 int status, length;
210 io_channel chan;
211 struct rpc_msg msg;
213 char *CApath = NULL, *CAfile = NULL;
214 int badop = 0;
215 int ret = 1;
216 int client_auth = 0;
217 int server_auth = 0;
218 SSL_CTX *s_ctx = NULL;
220 * Confirm logical link with initiating client.
222 LIB$INIT_TIMER();
223 status = SYS$ASSIGN(&sysnet, &chan, 0, 0, 0);
224 printf("status of assign to SYS$NET: %d\n", status);
226 * Initialize standard out and error files.
228 if (bio_err == NULL)
229 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
230 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE);
231 if (bio_stdout == NULL)
232 if ((bio_stdout = BIO_new(BIO_s_file())) != NULL)
233 BIO_set_fp(bio_stdout, stdout, BIO_NOCLOSE);
235 * get the preferred cipher list and other initialization
237 if (cipher == NULL)
238 cipher = getenv("SSL_CIPHER");
239 printf("cipher list: %s\n", cipher ? cipher : "{undefined}");
241 SSL_load_error_strings();
242 OpenSSL_add_all_algorithms();
245 * DRM, this was the original, but there is no such thing as SSLv2()
246 * s_ctx=SSL_CTX_new(SSLv2());
248 s_ctx = SSL_CTX_new(SSLv2_server_method());
250 if (s_ctx == NULL)
251 goto end;
253 SSL_CTX_use_certificate_file(s_ctx, TEST_SERVER_CERT, SSL_FILETYPE_PEM);
254 SSL_CTX_use_RSAPrivateKey_file(s_ctx, TEST_SERVER_CERT, SSL_FILETYPE_PEM);
255 printf("Loaded server certificate: '%s'\n", TEST_SERVER_CERT);
258 * Take commands from client until bad status.
260 LIB$SHOW_TIMER();
261 status = doit(chan, s_ctx);
262 LIB$SHOW_TIMER();
264 * do final cleanup and exit.
266 end:
267 if (s_ctx != NULL)
268 SSL_CTX_free(s_ctx);
269 LIB$SHOW_TIMER();
270 return 1;
273 int doit(io_channel chan, SSL_CTX *s_ctx)
275 int status, length, link_state;
276 struct rpc_msg msg;
278 SSL *s_ssl = NULL;
279 BIO *c_to_s = NULL;
280 BIO *s_to_c = NULL;
281 BIO *c_bio = NULL;
282 BIO *s_bio = NULL;
283 int i;
284 int done = 0;
286 s_ssl = SSL_new(s_ctx);
287 if (s_ssl == NULL)
288 goto err;
290 c_to_s = BIO_new(BIO_s_rtcp());
291 s_to_c = BIO_new(BIO_s_rtcp());
292 if ((s_to_c == NULL) || (c_to_s == NULL))
293 goto err;
294 /*- original, DRM 24-SEP-1997
295 BIO_set_fd ( c_to_s, "", chan );
296 BIO_set_fd ( s_to_c, "", chan );
298 BIO_set_fd(c_to_s, 0, chan);
299 BIO_set_fd(s_to_c, 0, chan);
301 c_bio = BIO_new(BIO_f_ssl());
302 s_bio = BIO_new(BIO_f_ssl());
303 if ((c_bio == NULL) || (s_bio == NULL))
304 goto err;
306 SSL_set_accept_state(s_ssl);
307 SSL_set_bio(s_ssl, c_to_s, s_to_c);
308 BIO_set_ssl(s_bio, s_ssl, BIO_CLOSE);
310 /* We can always do writes */
311 printf("Begin doit main loop\n");
313 * Link states: 0-idle, 1-read pending, 2-write pending, 3-closed.
315 for (link_state = 0; link_state < 3;) {
317 * Wait for remote end to request data action on A channel.
319 while (link_state == 0) {
320 status = get(chan, (char *)&msg, sizeof(msg), &length);
321 if ((status & 1) == 0) {
322 printf("Error in main loop get: %d\n", status);
323 link_state = 3;
324 break;
326 if (length < RPC_HDR_SIZE) {
327 printf("Error in main loop get size: %d\n", length);
328 break;
329 link_state = 3;
331 if (msg.channel != 'A') {
332 printf("Error in main loop, unexpected channel: %c\n",
333 msg.channel);
334 break;
335 link_state = 3;
337 if (msg.function == 'G') {
338 link_state = 1;
339 } else if (msg.function == 'P') {
340 link_state = 2; /* write pending */
341 } else if (msg.function == 'X') {
342 link_state = 3;
343 } else {
344 link_state = 3;
347 if (link_state == 1) {
348 i = BIO_read(s_bio, msg.data, msg.length);
349 if (i < 0)
350 link_state = 3;
351 else {
352 msg.channel = 'A';
353 msg.function = 'C'; /* confirm */
354 msg.length = i;
355 status = put(chan, (char *)&msg, i + RPC_HDR_SIZE);
356 if ((status & 1) == 0)
357 break;
358 link_state = 0;
360 } else if (link_state == 2) {
361 i = BIO_write(s_bio, msg.data, msg.length);
362 if (i < 0)
363 link_state = 3;
364 else {
365 msg.channel = 'A';
366 msg.function = 'C'; /* confirm */
367 msg.length = 0;
368 status = put(chan, (char *)&msg, RPC_HDR_SIZE);
369 if ((status & 1) == 0)
370 break;
371 link_state = 0;
375 fprintf(stdout, "DONE\n");
376 err:
378 * We have to set the BIO's to NULL otherwise they will be free()ed
379 * twice. Once when th s_ssl is SSL_free()ed and again when c_ssl is
380 * SSL_free()ed. This is a hack required because s_ssl and c_ssl are
381 * sharing the same BIO structure and SSL_set_bio() and SSL_free()
382 * automatically BIO_free non NULL entries. You should not normally do
383 * this or be required to do this
385 s_ssl->rbio = NULL;
386 s_ssl->wbio = NULL;
388 if (c_to_s != NULL)
389 BIO_free(c_to_s);
390 if (s_to_c != NULL)
391 BIO_free(s_to_c);
392 if (c_bio != NULL)
393 BIO_free(c_bio);
394 if (s_bio != NULL)
395 BIO_free(s_bio);
396 return (0);