2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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
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
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.]
61 #include <openssl/bio.h>
62 #include <openssl/objects.h>
63 #include <openssl/evp.h>
64 #include <openssl/x509.h>
65 #include <openssl/pem.h>
67 static int ssl_set_cert(CERT *c, X509 *x509);
68 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
69 int SSL_use_certificate(SSL *ssl, X509 *x)
73 SSLerr(SSL_F_SSL_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
76 rv = ssl_security_cert(ssl, NULL, x, 0, 1);
78 SSLerr(SSL_F_SSL_USE_CERTIFICATE, rv);
82 if (!ssl_cert_inst(&ssl->cert)) {
83 SSLerr(SSL_F_SSL_USE_CERTIFICATE, ERR_R_MALLOC_FAILURE);
86 return (ssl_set_cert(ssl->cert, x));
89 #ifndef OPENSSL_NO_STDIO
90 int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
97 in = BIO_new(BIO_s_file_internal());
99 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
103 if (BIO_read_filename(in, file) <= 0) {
104 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
107 if (type == SSL_FILETYPE_ASN1) {
109 x = d2i_X509_bio(in, NULL);
110 } else if (type == SSL_FILETYPE_PEM) {
112 x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback,
113 ssl->ctx->default_passwd_callback_userdata);
115 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
120 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, j);
124 ret = SSL_use_certificate(ssl, x);
134 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
139 x = d2i_X509(NULL, &d, (long)len);
141 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
145 ret = SSL_use_certificate(ssl, x);
150 #ifndef OPENSSL_NO_RSA
151 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
157 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
160 if (!ssl_cert_inst(&ssl->cert)) {
161 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
164 if ((pkey = EVP_PKEY_new()) == NULL) {
165 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
170 EVP_PKEY_assign_RSA(pkey, rsa);
172 ret = ssl_set_pkey(ssl->cert, pkey);
178 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
182 * Special case for DH: check two DH certificate types for a match. This
183 * means for DH certificates we must set the certificate first.
185 if (pkey->type == EVP_PKEY_DH) {
188 x = c->pkeys[SSL_PKEY_DH_RSA].x509;
189 if (x && X509_check_private_key(x, pkey))
191 x = c->pkeys[SSL_PKEY_DH_DSA].x509;
192 if (i == -1 && x && X509_check_private_key(x, pkey))
196 i = ssl_cert_type(NULL, pkey);
198 SSLerr(SSL_F_SSL_SET_PKEY, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
202 if (c->pkeys[i].x509 != NULL) {
204 pktmp = X509_get_pubkey(c->pkeys[i].x509);
205 EVP_PKEY_copy_parameters(pktmp, pkey);
206 EVP_PKEY_free(pktmp);
209 #ifndef OPENSSL_NO_RSA
211 * Don't check the public/private key, this is mostly for smart
214 if ((pkey->type == EVP_PKEY_RSA) &&
215 (RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK)) ;
218 if (!X509_check_private_key(c->pkeys[i].x509, pkey)) {
219 X509_free(c->pkeys[i].x509);
220 c->pkeys[i].x509 = NULL;
225 if (c->pkeys[i].privatekey != NULL)
226 EVP_PKEY_free(c->pkeys[i].privatekey);
227 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
228 c->pkeys[i].privatekey = pkey;
229 c->key = &(c->pkeys[i]);
235 #ifndef OPENSSL_NO_RSA
236 # ifndef OPENSSL_NO_STDIO
237 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
243 in = BIO_new(BIO_s_file_internal());
245 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
249 if (BIO_read_filename(in, file) <= 0) {
250 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
253 if (type == SSL_FILETYPE_ASN1) {
255 rsa = d2i_RSAPrivateKey_bio(in, NULL);
256 } else if (type == SSL_FILETYPE_PEM) {
258 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
259 ssl->ctx->default_passwd_callback,
261 ctx->default_passwd_callback_userdata);
263 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
267 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, j);
270 ret = SSL_use_RSAPrivateKey(ssl, rsa);
279 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len)
282 const unsigned char *p;
286 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
287 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
291 ret = SSL_use_RSAPrivateKey(ssl, rsa);
295 #endif /* !OPENSSL_NO_RSA */
297 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
302 SSLerr(SSL_F_SSL_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
305 if (!ssl_cert_inst(&ssl->cert)) {
306 SSLerr(SSL_F_SSL_USE_PRIVATEKEY, ERR_R_MALLOC_FAILURE);
309 ret = ssl_set_pkey(ssl->cert, pkey);
313 #ifndef OPENSSL_NO_STDIO
314 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
318 EVP_PKEY *pkey = NULL;
320 in = BIO_new(BIO_s_file_internal());
322 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
326 if (BIO_read_filename(in, file) <= 0) {
327 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
330 if (type == SSL_FILETYPE_PEM) {
332 pkey = PEM_read_bio_PrivateKey(in, NULL,
333 ssl->ctx->default_passwd_callback,
335 ctx->default_passwd_callback_userdata);
336 } else if (type == SSL_FILETYPE_ASN1) {
338 pkey = d2i_PrivateKey_bio(in, NULL);
340 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
344 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, j);
347 ret = SSL_use_PrivateKey(ssl, pkey);
356 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d,
360 const unsigned char *p;
364 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
365 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
369 ret = SSL_use_PrivateKey(ssl, pkey);
374 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
378 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
381 rv = ssl_security_cert(NULL, ctx, x, 0, 1);
383 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, rv);
386 if (!ssl_cert_inst(&ctx->cert)) {
387 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_MALLOC_FAILURE);
390 return (ssl_set_cert(ctx->cert, x));
393 static int ssl_set_cert(CERT *c, X509 *x)
398 pkey = X509_get_pubkey(x);
400 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_X509_LIB);
404 i = ssl_cert_type(x, pkey);
406 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
411 if (c->pkeys[i].privatekey != NULL) {
412 EVP_PKEY_copy_parameters(pkey, c->pkeys[i].privatekey);
415 #ifndef OPENSSL_NO_RSA
417 * Don't check the public/private key, this is mostly for smart
420 if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
421 (RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
422 RSA_METHOD_FLAG_NO_CHECK)) ;
424 #endif /* OPENSSL_NO_RSA */
425 if (!X509_check_private_key(x, c->pkeys[i].privatekey)) {
427 * don't fail for a cert/key mismatch, just free current private
428 * key (when switching to a different cert & key, first this
429 * function should be used, then ssl_set_pkey
431 EVP_PKEY_free(c->pkeys[i].privatekey);
432 c->pkeys[i].privatekey = NULL;
433 /* clear error queue */
440 if (c->pkeys[i].x509 != NULL)
441 X509_free(c->pkeys[i].x509);
442 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
443 c->pkeys[i].x509 = x;
444 c->key = &(c->pkeys[i]);
450 #ifndef OPENSSL_NO_STDIO
451 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
458 in = BIO_new(BIO_s_file_internal());
460 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
464 if (BIO_read_filename(in, file) <= 0) {
465 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
468 if (type == SSL_FILETYPE_ASN1) {
470 x = d2i_X509_bio(in, NULL);
471 } else if (type == SSL_FILETYPE_PEM) {
473 x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
474 ctx->default_passwd_callback_userdata);
476 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
481 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, j);
485 ret = SSL_CTX_use_certificate(ctx, x);
495 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
496 const unsigned char *d)
501 x = d2i_X509(NULL, &d, (long)len);
503 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
507 ret = SSL_CTX_use_certificate(ctx, x);
512 #ifndef OPENSSL_NO_RSA
513 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
519 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
522 if (!ssl_cert_inst(&ctx->cert)) {
523 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
526 if ((pkey = EVP_PKEY_new()) == NULL) {
527 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
532 EVP_PKEY_assign_RSA(pkey, rsa);
534 ret = ssl_set_pkey(ctx->cert, pkey);
539 # ifndef OPENSSL_NO_STDIO
540 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
546 in = BIO_new(BIO_s_file_internal());
548 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
552 if (BIO_read_filename(in, file) <= 0) {
553 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
556 if (type == SSL_FILETYPE_ASN1) {
558 rsa = d2i_RSAPrivateKey_bio(in, NULL);
559 } else if (type == SSL_FILETYPE_PEM) {
561 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
562 ctx->default_passwd_callback,
563 ctx->default_passwd_callback_userdata);
565 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
569 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, j);
572 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
581 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
585 const unsigned char *p;
589 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
590 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
594 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
598 #endif /* !OPENSSL_NO_RSA */
600 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
603 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
606 if (!ssl_cert_inst(&ctx->cert)) {
607 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY, ERR_R_MALLOC_FAILURE);
610 return (ssl_set_pkey(ctx->cert, pkey));
613 #ifndef OPENSSL_NO_STDIO
614 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
618 EVP_PKEY *pkey = NULL;
620 in = BIO_new(BIO_s_file_internal());
622 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
626 if (BIO_read_filename(in, file) <= 0) {
627 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
630 if (type == SSL_FILETYPE_PEM) {
632 pkey = PEM_read_bio_PrivateKey(in, NULL,
633 ctx->default_passwd_callback,
634 ctx->default_passwd_callback_userdata);
635 } else if (type == SSL_FILETYPE_ASN1) {
637 pkey = d2i_PrivateKey_bio(in, NULL);
639 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
643 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, j);
646 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
655 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx,
656 const unsigned char *d, long len)
659 const unsigned char *p;
663 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
664 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
668 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
673 #ifndef OPENSSL_NO_STDIO
675 * Read a file that contains our certificate in "PEM" format, possibly
676 * followed by a sequence of CA certificates that should be sent to the peer
677 * in the Certificate message.
679 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
685 ERR_clear_error(); /* clear error stack for
686 * SSL_CTX_use_certificate() */
688 in = BIO_new(BIO_s_file_internal());
690 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_BUF_LIB);
694 if (BIO_read_filename(in, file) <= 0) {
695 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_SYS_LIB);
699 x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback,
700 ctx->default_passwd_callback_userdata);
702 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
706 ret = SSL_CTX_use_certificate(ctx, x);
708 if (ERR_peek_error() != 0)
709 ret = 0; /* Key/certificate mismatch doesn't imply
713 * If we could set up our certificate, now proceed to the CA
720 SSL_CTX_clear_chain_certs(ctx);
722 while ((ca = PEM_read_bio_X509(in, NULL,
723 ctx->default_passwd_callback,
724 ctx->default_passwd_callback_userdata))
726 r = SSL_CTX_add0_chain_cert(ctx, ca);
733 * Note that we must not free r if it was successfully added to
734 * the chain (while we must free the main certificate, since its
735 * reference count is increased by SSL_CTX_use_certificate).
738 /* When the while loop ends, it's usually just EOF. */
739 err = ERR_peek_last_error();
740 if (ERR_GET_LIB(err) == ERR_LIB_PEM
741 && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
744 ret = 0; /* some real error */
756 #ifndef OPENSSL_NO_TLSEXT
757 static int serverinfo_find_extension(const unsigned char *serverinfo,
758 size_t serverinfo_length,
759 unsigned int extension_type,
760 const unsigned char **extension_data,
761 size_t *extension_length)
763 *extension_data = NULL;
764 *extension_length = 0;
765 if (serverinfo == NULL || serverinfo_length == 0)
768 unsigned int type = 0;
771 /* end of serverinfo */
772 if (serverinfo_length == 0)
773 return -1; /* Extension not found */
775 /* read 2-byte type field */
776 if (serverinfo_length < 2)
777 return 0; /* Error */
778 type = (serverinfo[0] << 8) + serverinfo[1];
780 serverinfo_length -= 2;
782 /* read 2-byte len field */
783 if (serverinfo_length < 2)
784 return 0; /* Error */
785 len = (serverinfo[0] << 8) + serverinfo[1];
787 serverinfo_length -= 2;
789 if (len > serverinfo_length)
790 return 0; /* Error */
792 if (type == extension_type) {
793 *extension_data = serverinfo;
794 *extension_length = len;
795 return 1; /* Success */
799 serverinfo_length -= len;
801 return 0; /* Error */
804 static int serverinfo_srv_parse_cb(SSL *s, unsigned int ext_type,
805 const unsigned char *in,
806 size_t inlen, int *al, void *arg)
810 *al = SSL_AD_DECODE_ERROR;
817 static int serverinfo_srv_add_cb(SSL *s, unsigned int ext_type,
818 const unsigned char **out, size_t *outlen,
821 const unsigned char *serverinfo = NULL;
822 size_t serverinfo_length = 0;
824 /* Is there serverinfo data for the chosen server cert? */
825 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
826 &serverinfo_length)) != 0) {
827 /* Find the relevant extension from the serverinfo */
828 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
829 ext_type, out, outlen);
831 return 0; /* Error */
833 return -1; /* No extension found, don't send extension */
834 return 1; /* Send extension */
836 return -1; /* No serverinfo data found, don't send
841 * With a NULL context, this function just checks that the serverinfo data
842 * parses correctly. With a non-NULL context, it registers callbacks for
843 * the included extensions.
845 static int serverinfo_process_buffer(const unsigned char *serverinfo,
846 size_t serverinfo_length, SSL_CTX *ctx)
848 if (serverinfo == NULL || serverinfo_length == 0)
851 unsigned int ext_type = 0;
854 /* end of serverinfo */
855 if (serverinfo_length == 0)
858 /* read 2-byte type field */
859 if (serverinfo_length < 2)
861 /* FIXME: check for types we understand explicitly? */
863 /* Register callbacks for extensions */
864 ext_type = (serverinfo[0] << 8) + serverinfo[1];
865 if (ctx && !SSL_CTX_add_server_custom_ext(ctx, ext_type,
866 serverinfo_srv_add_cb,
868 serverinfo_srv_parse_cb,
873 serverinfo_length -= 2;
875 /* read 2-byte len field */
876 if (serverinfo_length < 2)
878 len = (serverinfo[0] << 8) + serverinfo[1];
880 serverinfo_length -= 2;
882 if (len > serverinfo_length)
886 serverinfo_length -= len;
890 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
891 size_t serverinfo_length)
893 unsigned char *new_serverinfo;
895 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0) {
896 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_PASSED_NULL_PARAMETER);
899 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL)) {
900 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
903 if (!ssl_cert_inst(&ctx->cert)) {
904 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_MALLOC_FAILURE);
907 if (ctx->cert->key == NULL) {
908 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_INTERNAL_ERROR);
911 new_serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
913 if (new_serverinfo == NULL) {
914 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_MALLOC_FAILURE);
917 ctx->cert->key->serverinfo = new_serverinfo;
918 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
919 ctx->cert->key->serverinfo_length = serverinfo_length;
922 * Now that the serverinfo is validated and stored, go ahead and
923 * register callbacks.
925 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx)) {
926 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
932 # ifndef OPENSSL_NO_STDIO
933 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
935 unsigned char *serverinfo = NULL;
936 size_t serverinfo_length = 0;
937 unsigned char *extension = 0;
938 long extension_length = 0;
941 char namePrefix[] = "SERVERINFO FOR ";
944 size_t num_extensions = 0;
946 if (ctx == NULL || file == NULL) {
947 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
948 ERR_R_PASSED_NULL_PARAMETER);
952 bin = BIO_new(BIO_s_file_internal());
954 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
957 if (BIO_read_filename(bin, file) <= 0) {
958 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
962 for (num_extensions = 0;; num_extensions++) {
963 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length)
966 * There must be at least one extension in this file
968 if (num_extensions == 0) {
969 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
970 SSL_R_NO_PEM_EXTENSIONS);
972 } else /* End of file, we're done */
975 /* Check that PEM name starts with "BEGIN SERVERINFO FOR " */
976 if (strlen(name) < strlen(namePrefix)) {
977 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
978 SSL_R_PEM_NAME_TOO_SHORT);
981 if (strncmp(name, namePrefix, strlen(namePrefix)) != 0) {
982 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
983 SSL_R_PEM_NAME_BAD_PREFIX);
987 * Check that the decoded PEM data is plausible (valid length field)
989 if (extension_length < 4
990 || (extension[2] << 8) + extension[3] != extension_length - 4) {
991 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
994 /* Append the decoded extension to the serverinfo buffer */
996 OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
997 if (serverinfo == NULL) {
998 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
1001 memcpy(serverinfo + serverinfo_length, extension, extension_length);
1002 serverinfo_length += extension_length;
1006 OPENSSL_free(header);
1008 OPENSSL_free(extension);
1012 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1014 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1016 OPENSSL_free(header);
1017 OPENSSL_free(extension);
1018 OPENSSL_free(serverinfo);
1023 # endif /* OPENSSL_NO_STDIO */
1024 #endif /* OPENSSL_NO_TLSEXT */