summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/ocsp/ocsp_ht.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/lib/libcrypto/ocsp/ocsp_ht.c469
1 files changed, 0 insertions, 469 deletions
diff --git a/src/lib/libcrypto/ocsp/ocsp_ht.c b/src/lib/libcrypto/ocsp/ocsp_ht.c
deleted file mode 100644
index 69723c2154..0000000000
--- a/src/lib/libcrypto/ocsp/ocsp_ht.c
+++ /dev/null
@@ -1,469 +0,0 @@
1/* $OpenBSD: ocsp_ht.c,v 1.27 2023/11/28 09:29:20 jsg Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
5/* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <ctype.h>
62#include <string.h>
63#include <openssl/asn1.h>
64#include <openssl/ocsp.h>
65#include <openssl/err.h>
66#include <openssl/buffer.h>
67
68/* Stateful OCSP request code, supporting non-blocking I/O */
69
70/* Opaque OCSP request status structure */
71
72struct ocsp_req_ctx_st {
73 int state; /* Current I/O state */
74 unsigned char *iobuf; /* Line buffer */
75 int iobuflen; /* Line buffer length */
76 BIO *io; /* BIO to perform I/O with */
77 BIO *mem; /* Memory BIO response is built into */
78 unsigned long asn1_len; /* ASN1 length of response */
79};
80
81#define OCSP_MAX_REQUEST_LENGTH (100 * 1024)
82#define OCSP_MAX_LINE_LEN 4096;
83
84/* OCSP states */
85
86/* If set no reading should be performed */
87#define OHS_NOREAD 0x1000
88/* Error condition */
89#define OHS_ERROR (0 | OHS_NOREAD)
90/* First line being read */
91#define OHS_FIRSTLINE 1
92/* MIME headers being read */
93#define OHS_HEADERS 2
94/* OCSP initial header (tag + length) being read */
95#define OHS_ASN1_HEADER 3
96/* OCSP content octets being read */
97#define OHS_ASN1_CONTENT 4
98/* Request being sent */
99#define OHS_ASN1_WRITE (6 | OHS_NOREAD)
100/* Request being flushed */
101#define OHS_ASN1_FLUSH (7 | OHS_NOREAD)
102/* Completed */
103#define OHS_DONE (8 | OHS_NOREAD)
104
105
106static int parse_http_line1(char *line);
107
108void
109OCSP_REQ_CTX_free(OCSP_REQ_CTX *rctx)
110{
111 if (rctx == NULL)
112 return;
113
114 BIO_free(rctx->mem);
115 free(rctx->iobuf);
116 free(rctx);
117}
118LCRYPTO_ALIAS(OCSP_REQ_CTX_free);
119
120int
121OCSP_REQ_CTX_set1_req(OCSP_REQ_CTX *rctx, OCSP_REQUEST *req)
122{
123 if (BIO_printf(rctx->mem, "Content-Type: application/ocsp-request\r\n"
124 "Content-Length: %d\r\n\r\n", i2d_OCSP_REQUEST(req, NULL)) <= 0)
125 return 0;
126 if (i2d_OCSP_REQUEST_bio(rctx->mem, req) <= 0)
127 return 0;
128 rctx->state = OHS_ASN1_WRITE;
129 rctx->asn1_len = BIO_get_mem_data(rctx->mem, NULL);
130 return 1;
131}
132LCRYPTO_ALIAS(OCSP_REQ_CTX_set1_req);
133
134int
135OCSP_REQ_CTX_add1_header(OCSP_REQ_CTX *rctx, const char *name,
136 const char *value)
137{
138 if (!name)
139 return 0;
140 if (BIO_puts(rctx->mem, name) <= 0)
141 return 0;
142 if (value) {
143 if (BIO_write(rctx->mem, ": ", 2) != 2)
144 return 0;
145 if (BIO_puts(rctx->mem, value) <= 0)
146 return 0;
147 }
148 if (BIO_write(rctx->mem, "\r\n", 2) != 2)
149 return 0;
150 return 1;
151}
152LCRYPTO_ALIAS(OCSP_REQ_CTX_add1_header);
153
154OCSP_REQ_CTX *
155OCSP_sendreq_new(BIO *io, const char *path, OCSP_REQUEST *req, int maxline)
156{
157 OCSP_REQ_CTX *rctx;
158
159 rctx = malloc(sizeof(OCSP_REQ_CTX));
160 if (rctx == NULL)
161 return NULL;
162 rctx->state = OHS_ERROR;
163 if ((rctx->mem = BIO_new(BIO_s_mem())) == NULL) {
164 free(rctx);
165 return NULL;
166 }
167 rctx->io = io;
168 rctx->asn1_len = 0;
169 if (maxline > 0)
170 rctx->iobuflen = maxline;
171 else
172 rctx->iobuflen = OCSP_MAX_LINE_LEN;
173 rctx->iobuf = malloc(rctx->iobuflen);
174 if (!rctx->iobuf) {
175 BIO_free(rctx->mem);
176 free(rctx);
177 return NULL;
178 }
179 if (!path)
180 path = "/";
181
182 if (BIO_printf(rctx->mem, "POST %s HTTP/1.0\r\n", path) <= 0) {
183 free(rctx->iobuf);
184 BIO_free(rctx->mem);
185 free(rctx);
186 return NULL;
187 }
188
189 if (req && !OCSP_REQ_CTX_set1_req(rctx, req)) {
190 free(rctx->iobuf);
191 BIO_free(rctx->mem);
192 free(rctx);
193 return NULL;
194 }
195
196 return rctx;
197}
198LCRYPTO_ALIAS(OCSP_sendreq_new);
199
200/* Parse the HTTP response. This will look like this:
201 * "HTTP/1.0 200 OK". We need to obtain the numeric code and
202 * (optional) informational message.
203 */
204static int
205parse_http_line1(char *line)
206{
207 int retcode;
208 char *p, *q, *r;
209
210 /* Skip to first white space (passed protocol info) */
211 for (p = line; *p && !isspace((unsigned char)*p); p++)
212 continue;
213 if (!*p) {
214 OCSPerror(OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
215 return 0;
216 }
217
218 /* Skip past white space to start of response code */
219 while (*p && isspace((unsigned char)*p))
220 p++;
221 if (!*p) {
222 OCSPerror(OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
223 return 0;
224 }
225
226 /* Find end of response code: first whitespace after start of code */
227 for (q = p; *q && !isspace((unsigned char)*q); q++)
228 continue;
229 if (!*q) {
230 OCSPerror(OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
231 return 0;
232 }
233
234 /* Set end of response code and start of message */
235 *q++ = 0;
236
237 /* Attempt to parse numeric code */
238 retcode = strtoul(p, &r, 10);
239
240 if (*r)
241 return 0;
242
243 /* Skip over any leading white space in message */
244 while (*q && isspace((unsigned char)*q))
245 q++;
246 if (*q) {
247 /* Finally zap any trailing white space in message (include
248 * CRLF) */
249
250 /* We know q has a non white space character so this is OK */
251 for (r = q + strlen(q) - 1; isspace((unsigned char)*r); r--)
252 *r = 0;
253 }
254 if (retcode != 200) {
255 OCSPerror(OCSP_R_SERVER_RESPONSE_ERROR);
256 if (!*q)
257 ERR_asprintf_error_data("Code=%s", p);
258 else
259 ERR_asprintf_error_data("Code=%s,Reason=%s", p, q);
260 return 0;
261 }
262
263 return 1;
264}
265
266int
267OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OCSP_REQ_CTX *rctx)
268{
269 int i, n;
270 const unsigned char *p;
271
272next_io:
273 if (!(rctx->state & OHS_NOREAD)) {
274 n = BIO_read(rctx->io, rctx->iobuf, rctx->iobuflen);
275
276 if (n <= 0) {
277 if (BIO_should_retry(rctx->io))
278 return -1;
279 return 0;
280 }
281
282 /* Write data to memory BIO */
283 if (BIO_write(rctx->mem, rctx->iobuf, n) != n)
284 return 0;
285 }
286
287 switch (rctx->state) {
288 case OHS_ASN1_WRITE:
289 n = BIO_get_mem_data(rctx->mem, &p);
290 i = BIO_write(rctx->io,
291 p + (n - rctx->asn1_len), rctx->asn1_len);
292 if (i <= 0) {
293 if (BIO_should_retry(rctx->io))
294 return -1;
295 rctx->state = OHS_ERROR;
296 return 0;
297 }
298
299 rctx->asn1_len -= i;
300 if (rctx->asn1_len > 0)
301 goto next_io;
302
303 rctx->state = OHS_ASN1_FLUSH;
304
305 (void)BIO_reset(rctx->mem);
306 /* FALLTHROUGH */
307
308 case OHS_ASN1_FLUSH:
309 i = BIO_flush(rctx->io);
310 if (i > 0) {
311 rctx->state = OHS_FIRSTLINE;
312 goto next_io;
313 }
314
315 if (BIO_should_retry(rctx->io))
316 return -1;
317
318 rctx->state = OHS_ERROR;
319 return 0;
320
321 case OHS_ERROR:
322 return 0;
323
324 case OHS_FIRSTLINE:
325 case OHS_HEADERS:
326 /* Attempt to read a line in */
327next_line:
328 /* Due to &%^*$" memory BIO behaviour with BIO_gets we
329 * have to check there's a complete line in there before
330 * calling BIO_gets or we'll just get a partial read.
331 */
332 n = BIO_get_mem_data(rctx->mem, &p);
333 if ((n <= 0) || !memchr(p, '\n', n)) {
334 if (n >= rctx->iobuflen) {
335 rctx->state = OHS_ERROR;
336 return 0;
337 }
338 goto next_io;
339 }
340 n = BIO_gets(rctx->mem, (char *)rctx->iobuf, rctx->iobuflen);
341 if (n <= 0) {
342 if (BIO_should_retry(rctx->mem))
343 goto next_io;
344 rctx->state = OHS_ERROR;
345 return 0;
346 }
347
348 /* Don't allow excessive lines */
349 if (n == rctx->iobuflen) {
350 rctx->state = OHS_ERROR;
351 return 0;
352 }
353
354 /* First line */
355 if (rctx->state == OHS_FIRSTLINE) {
356 if (parse_http_line1((char *)rctx->iobuf)) {
357 rctx->state = OHS_HEADERS;
358 goto next_line;
359 } else {
360 rctx->state = OHS_ERROR;
361 return 0;
362 }
363 } else {
364 /* Look for blank line: end of headers */
365 for (p = rctx->iobuf; *p; p++) {
366 if ((*p != '\r') && (*p != '\n'))
367 break;
368 }
369 if (*p)
370 goto next_line;
371
372 rctx->state = OHS_ASN1_HEADER;
373 }
374 /* FALLTHROUGH */
375
376 case OHS_ASN1_HEADER:
377 /* Now reading ASN1 header: can read at least 2 bytes which
378 * is enough for ASN1 SEQUENCE header and either length field
379 * or at least the length of the length field.
380 */
381 n = BIO_get_mem_data(rctx->mem, &p);
382 if (n < 2)
383 goto next_io;
384
385 /* Check it is an ASN1 SEQUENCE */
386 if (*p++ != (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
387 rctx->state = OHS_ERROR;
388 return 0;
389 }
390
391 /* Check out length field */
392 if (*p & 0x80) {
393 /* If MSB set on initial length octet we can now
394 * always read 6 octets: make sure we have them.
395 */
396 if (n < 6)
397 goto next_io;
398 n = *p & 0x7F;
399 /* Not NDEF or excessive length */
400 if (!n || (n > 4)) {
401 rctx->state = OHS_ERROR;
402 return 0;
403 }
404 p++;
405 rctx->asn1_len = 0;
406 for (i = 0; i < n; i++) {
407 rctx->asn1_len <<= 8;
408 rctx->asn1_len |= *p++;
409 }
410
411 if (rctx->asn1_len > OCSP_MAX_REQUEST_LENGTH) {
412 rctx->state = OHS_ERROR;
413 return 0;
414 }
415
416 rctx->asn1_len += n + 2;
417 } else
418 rctx->asn1_len = *p + 2;
419
420 rctx->state = OHS_ASN1_CONTENT;
421
422 /* FALLTHROUGH */
423
424 case OHS_ASN1_CONTENT:
425 n = BIO_get_mem_data(rctx->mem, &p);
426 if (n < (int)rctx->asn1_len)
427 goto next_io;
428
429 *presp = d2i_OCSP_RESPONSE(NULL, &p, rctx->asn1_len);
430 if (*presp) {
431 rctx->state = OHS_DONE;
432 return 1;
433 }
434
435 rctx->state = OHS_ERROR;
436 return 0;
437
438 case OHS_DONE:
439 return 1;
440 }
441
442 return 0;
443}
444LCRYPTO_ALIAS(OCSP_sendreq_nbio);
445
446/* Blocking OCSP request handler: now a special case of non-blocking I/O */
447OCSP_RESPONSE *
448OCSP_sendreq_bio(BIO *b, const char *path, OCSP_REQUEST *req)
449{
450 OCSP_RESPONSE *resp = NULL;
451 OCSP_REQ_CTX *ctx;
452 int rv;
453
454 ctx = OCSP_sendreq_new(b, path, req, -1);
455 if (ctx == NULL)
456 return NULL;
457
458 do {
459 rv = OCSP_sendreq_nbio(&resp, ctx);
460 } while ((rv == -1) && BIO_should_retry(b));
461
462 OCSP_REQ_CTX_free(ctx);
463
464 if (rv)
465 return resp;
466
467 return NULL;
468}
469LCRYPTO_ALIAS(OCSP_sendreq_bio);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 22:25:31 +0000