1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
60 #include <openssl/bio.h>
61 #include <openssl/objects.h>
62 #include <openssl/evp.h>
63 #include <openssl/x509.h>
64 #include <openssl/pem.h>
66 static int ssl_set_cert(CERT *c, X509 *x509);
67 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
68 int SSL_use_certificate(SSL *ssl, X509 *x)
72 SSLerr(SSL_F_SSL_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
75 rv = ssl_security_cert(ssl, NULL, x, 0, 1);
77 SSLerr(SSL_F_SSL_USE_CERTIFICATE, rv);
81 return (ssl_set_cert(ssl->cert, x));
84 #ifndef OPENSSL_NO_STDIO
85 int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
92 in = BIO_new(BIO_s_file());
94 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
98 if (BIO_read_filename(in, file) <= 0) {
99 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
102 if (type == SSL_FILETYPE_ASN1) {
104 x = d2i_X509_bio(in, NULL);
105 } else if (type == SSL_FILETYPE_PEM) {
107 x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback,
108 ssl->ctx->default_passwd_callback_userdata);
110 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
115 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE, j);
119 ret = SSL_use_certificate(ssl, x);
127 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
132 x = d2i_X509(NULL, &d, (long)len);
134 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
138 ret = SSL_use_certificate(ssl, x);
143 #ifndef OPENSSL_NO_RSA
144 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
150 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
153 if ((pkey = EVP_PKEY_new()) == NULL) {
154 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
159 if (EVP_PKEY_assign_RSA(pkey, rsa) <= 0) {
164 ret = ssl_set_pkey(ssl->cert, pkey);
170 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
173 i = ssl_cert_type(NULL, pkey);
175 SSLerr(SSL_F_SSL_SET_PKEY, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
179 if (c->pkeys[i].x509 != NULL) {
181 pktmp = X509_get0_pubkey(c->pkeys[i].x509);
183 SSLerr(SSL_F_SSL_SET_PKEY, ERR_R_MALLOC_FAILURE);
187 * The return code from EVP_PKEY_copy_parameters is deliberately
188 * ignored. Some EVP_PKEY types cannot do this.
190 EVP_PKEY_copy_parameters(pktmp, pkey);
193 #ifndef OPENSSL_NO_RSA
195 * Don't check the public/private key, this is mostly for smart
198 if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA
199 && RSA_flags(EVP_PKEY_get0_RSA(pkey)) & RSA_METHOD_FLAG_NO_CHECK);
202 if (!X509_check_private_key(c->pkeys[i].x509, pkey)) {
203 X509_free(c->pkeys[i].x509);
204 c->pkeys[i].x509 = NULL;
209 EVP_PKEY_free(c->pkeys[i].privatekey);
210 EVP_PKEY_up_ref(pkey);
211 c->pkeys[i].privatekey = pkey;
212 c->key = &(c->pkeys[i]);
216 #ifndef OPENSSL_NO_RSA
217 # ifndef OPENSSL_NO_STDIO
218 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
224 in = BIO_new(BIO_s_file());
226 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
230 if (BIO_read_filename(in, file) <= 0) {
231 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
234 if (type == SSL_FILETYPE_ASN1) {
236 rsa = d2i_RSAPrivateKey_bio(in, NULL);
237 } else if (type == SSL_FILETYPE_PEM) {
239 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
240 ssl->ctx->default_passwd_callback,
242 ctx->default_passwd_callback_userdata);
244 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
248 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE, j);
251 ret = SSL_use_RSAPrivateKey(ssl, rsa);
259 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, const unsigned char *d, long len)
262 const unsigned char *p;
266 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
267 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
271 ret = SSL_use_RSAPrivateKey(ssl, rsa);
275 #endif /* !OPENSSL_NO_RSA */
277 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
282 SSLerr(SSL_F_SSL_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
285 ret = ssl_set_pkey(ssl->cert, pkey);
289 #ifndef OPENSSL_NO_STDIO
290 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
294 EVP_PKEY *pkey = NULL;
296 in = BIO_new(BIO_s_file());
298 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
302 if (BIO_read_filename(in, file) <= 0) {
303 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
306 if (type == SSL_FILETYPE_PEM) {
308 pkey = PEM_read_bio_PrivateKey(in, NULL,
309 ssl->ctx->default_passwd_callback,
311 ctx->default_passwd_callback_userdata);
312 } else if (type == SSL_FILETYPE_ASN1) {
314 pkey = d2i_PrivateKey_bio(in, NULL);
316 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
320 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE, j);
323 ret = SSL_use_PrivateKey(ssl, pkey);
331 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d,
335 const unsigned char *p;
339 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
340 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
344 ret = SSL_use_PrivateKey(ssl, pkey);
349 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
353 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, ERR_R_PASSED_NULL_PARAMETER);
356 rv = ssl_security_cert(NULL, ctx, x, 0, 1);
358 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE, rv);
361 return (ssl_set_cert(ctx->cert, x));
364 static int ssl_set_cert(CERT *c, X509 *x)
369 pkey = X509_get0_pubkey(x);
371 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_X509_LIB);
375 i = ssl_cert_type(x, pkey);
377 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_UNKNOWN_CERTIFICATE_TYPE);
380 #ifndef OPENSSL_NO_EC
381 if (i == SSL_PKEY_ECC && !EC_KEY_can_sign(EVP_PKEY_get0_EC_KEY(pkey))) {
382 SSLerr(SSL_F_SSL_SET_CERT, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
386 if (c->pkeys[i].privatekey != NULL) {
388 * The return code from EVP_PKEY_copy_parameters is deliberately
389 * ignored. Some EVP_PKEY types cannot do this.
391 EVP_PKEY_copy_parameters(pkey, c->pkeys[i].privatekey);
394 #ifndef OPENSSL_NO_RSA
396 * Don't check the public/private key, this is mostly for smart
399 if (EVP_PKEY_id(c->pkeys[i].privatekey) == EVP_PKEY_RSA
400 && RSA_flags(EVP_PKEY_get0_RSA(c->pkeys[i].privatekey)) &
401 RSA_METHOD_FLAG_NO_CHECK) ;
403 #endif /* OPENSSL_NO_RSA */
404 if (!X509_check_private_key(x, c->pkeys[i].privatekey)) {
406 * don't fail for a cert/key mismatch, just free current private
407 * key (when switching to a different cert & key, first this
408 * function should be used, then ssl_set_pkey
410 EVP_PKEY_free(c->pkeys[i].privatekey);
411 c->pkeys[i].privatekey = NULL;
412 /* clear error queue */
417 X509_free(c->pkeys[i].x509);
419 c->pkeys[i].x509 = x;
420 c->key = &(c->pkeys[i]);
425 #ifndef OPENSSL_NO_STDIO
426 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
433 in = BIO_new(BIO_s_file());
435 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_BUF_LIB);
439 if (BIO_read_filename(in, file) <= 0) {
440 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_SYS_LIB);
443 if (type == SSL_FILETYPE_ASN1) {
445 x = d2i_X509_bio(in, NULL);
446 } else if (type == SSL_FILETYPE_PEM) {
448 x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
449 ctx->default_passwd_callback_userdata);
451 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, SSL_R_BAD_SSL_FILETYPE);
456 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, j);
460 ret = SSL_CTX_use_certificate(ctx, x);
468 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len,
469 const unsigned char *d)
474 x = d2i_X509(NULL, &d, (long)len);
476 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1, ERR_R_ASN1_LIB);
480 ret = SSL_CTX_use_certificate(ctx, x);
485 #ifndef OPENSSL_NO_RSA
486 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
492 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
495 if ((pkey = EVP_PKEY_new()) == NULL) {
496 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY, ERR_R_EVP_LIB);
501 if (EVP_PKEY_assign_RSA(pkey, rsa) <= 0) {
506 ret = ssl_set_pkey(ctx->cert, pkey);
511 # ifndef OPENSSL_NO_STDIO
512 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
518 in = BIO_new(BIO_s_file());
520 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_BUF_LIB);
524 if (BIO_read_filename(in, file) <= 0) {
525 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, ERR_R_SYS_LIB);
528 if (type == SSL_FILETYPE_ASN1) {
530 rsa = d2i_RSAPrivateKey_bio(in, NULL);
531 } else if (type == SSL_FILETYPE_PEM) {
533 rsa = PEM_read_bio_RSAPrivateKey(in, NULL,
534 ctx->default_passwd_callback,
535 ctx->default_passwd_callback_userdata);
537 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
541 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE, j);
544 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
552 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d,
556 const unsigned char *p;
560 if ((rsa = d2i_RSAPrivateKey(NULL, &p, (long)len)) == NULL) {
561 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
565 ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
569 #endif /* !OPENSSL_NO_RSA */
571 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
574 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
577 return (ssl_set_pkey(ctx->cert, pkey));
580 #ifndef OPENSSL_NO_STDIO
581 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
585 EVP_PKEY *pkey = NULL;
587 in = BIO_new(BIO_s_file());
589 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_BUF_LIB);
593 if (BIO_read_filename(in, file) <= 0) {
594 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, ERR_R_SYS_LIB);
597 if (type == SSL_FILETYPE_PEM) {
599 pkey = PEM_read_bio_PrivateKey(in, NULL,
600 ctx->default_passwd_callback,
601 ctx->default_passwd_callback_userdata);
602 } else if (type == SSL_FILETYPE_ASN1) {
604 pkey = d2i_PrivateKey_bio(in, NULL);
606 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, SSL_R_BAD_SSL_FILETYPE);
610 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE, j);
613 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
621 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx,
622 const unsigned char *d, long len)
625 const unsigned char *p;
629 if ((pkey = d2i_PrivateKey(type, NULL, &p, (long)len)) == NULL) {
630 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1, ERR_R_ASN1_LIB);
634 ret = SSL_CTX_use_PrivateKey(ctx, pkey);
639 #ifndef OPENSSL_NO_STDIO
641 * Read a file that contains our certificate in "PEM" format, possibly
642 * followed by a sequence of CA certificates that should be sent to the peer
643 * in the Certificate message.
645 static int use_certificate_chain_file(SSL_CTX *ctx, SSL *ssl, const char *file)
650 pem_password_cb *passwd_callback;
651 void *passwd_callback_userdata;
653 ERR_clear_error(); /* clear error stack for
654 * SSL_CTX_use_certificate() */
657 passwd_callback = ctx->default_passwd_callback;
658 passwd_callback_userdata = ctx->default_passwd_callback_userdata;
660 passwd_callback = ssl->default_passwd_callback;
661 passwd_callback_userdata = ssl->default_passwd_callback_userdata;
664 in = BIO_new(BIO_s_file());
666 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_BUF_LIB);
670 if (BIO_read_filename(in, file) <= 0) {
671 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_SYS_LIB);
675 x = PEM_read_bio_X509_AUX(in, NULL, passwd_callback,
676 passwd_callback_userdata);
678 SSLerr(SSL_F_USE_CERTIFICATE_CHAIN_FILE, ERR_R_PEM_LIB);
683 ret = SSL_CTX_use_certificate(ctx, x);
685 ret = SSL_use_certificate(ssl, x);
687 if (ERR_peek_error() != 0)
688 ret = 0; /* Key/certificate mismatch doesn't imply
692 * If we could set up our certificate, now proceed to the CA
700 r = SSL_CTX_clear_chain_certs(ctx);
702 r = SSL_clear_chain_certs(ssl);
709 while ((ca = PEM_read_bio_X509(in, NULL, passwd_callback,
710 passwd_callback_userdata))
713 r = SSL_CTX_add0_chain_cert(ctx, ca);
715 r = SSL_add0_chain_cert(ssl, ca);
717 * Note that we must not free ca if it was successfully added to
718 * the chain (while we must free the main certificate, since its
719 * reference count is increased by SSL_CTX_use_certificate).
727 /* When the while loop ends, it's usually just EOF. */
728 err = ERR_peek_last_error();
729 if (ERR_GET_LIB(err) == ERR_LIB_PEM
730 && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
733 ret = 0; /* some real error */
742 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
744 return use_certificate_chain_file(ctx, NULL, file);
747 int SSL_use_certificate_chain_file(SSL *ssl, const char *file)
749 return use_certificate_chain_file(NULL, ssl, file);
753 static int serverinfo_find_extension(const unsigned char *serverinfo,
754 size_t serverinfo_length,
755 unsigned int extension_type,
756 const unsigned char **extension_data,
757 size_t *extension_length)
759 *extension_data = NULL;
760 *extension_length = 0;
761 if (serverinfo == NULL || serverinfo_length == 0)
764 unsigned int type = 0;
767 /* end of serverinfo */
768 if (serverinfo_length == 0)
769 return 0; /* Extension not found */
771 /* read 2-byte type field */
772 if (serverinfo_length < 2)
773 return -1; /* Error */
774 type = (serverinfo[0] << 8) + serverinfo[1];
776 serverinfo_length -= 2;
778 /* read 2-byte len field */
779 if (serverinfo_length < 2)
780 return -1; /* Error */
781 len = (serverinfo[0] << 8) + serverinfo[1];
783 serverinfo_length -= 2;
785 if (len > serverinfo_length)
786 return -1; /* Error */
788 if (type == extension_type) {
789 *extension_data = serverinfo;
790 *extension_length = len;
791 return 1; /* Success */
795 serverinfo_length -= len;
800 static int serverinfo_srv_parse_cb(SSL *s, unsigned int ext_type,
801 const unsigned char *in,
802 size_t inlen, int *al, void *arg)
806 *al = SSL_AD_DECODE_ERROR;
813 static int serverinfo_srv_add_cb(SSL *s, unsigned int ext_type,
814 const unsigned char **out, size_t *outlen,
817 const unsigned char *serverinfo = NULL;
818 size_t serverinfo_length = 0;
820 /* Is there serverinfo data for the chosen server cert? */
821 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
822 &serverinfo_length)) != 0) {
823 /* Find the relevant extension from the serverinfo */
824 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
825 ext_type, out, outlen);
827 *al = SSL_AD_DECODE_ERROR;
828 return -1; /* Error */
831 return 0; /* No extension found, don't send extension */
832 return 1; /* Send extension */
834 return 0; /* No serverinfo data found, don't send
839 * With a NULL context, this function just checks that the serverinfo data
840 * parses correctly. With a non-NULL context, it registers callbacks for
841 * the included extensions.
843 static int serverinfo_process_buffer(const unsigned char *serverinfo,
844 size_t serverinfo_length, SSL_CTX *ctx)
846 if (serverinfo == NULL || serverinfo_length == 0)
849 unsigned int ext_type = 0;
852 /* end of serverinfo */
853 if (serverinfo_length == 0)
856 /* read 2-byte type field */
857 if (serverinfo_length < 2)
859 /* FIXME: check for types we understand explicitly? */
861 /* Register callbacks for extensions */
862 ext_type = (serverinfo[0] << 8) + serverinfo[1];
864 int have_ext_cbs = 0;
866 custom_ext_methods *exts = &ctx->cert->srv_ext;
867 custom_ext_method *meth = exts->meths;
869 for (i = 0; i < exts->meths_count; i++, meth++) {
870 if (ext_type == meth->ext_type) {
876 if (!have_ext_cbs && !SSL_CTX_add_server_custom_ext(ctx, ext_type,
877 serverinfo_srv_add_cb,
879 serverinfo_srv_parse_cb,
885 serverinfo_length -= 2;
887 /* read 2-byte len field */
888 if (serverinfo_length < 2)
890 len = (serverinfo[0] << 8) + serverinfo[1];
892 serverinfo_length -= 2;
894 if (len > serverinfo_length)
898 serverinfo_length -= len;
902 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
903 size_t serverinfo_length)
905 unsigned char *new_serverinfo;
907 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0) {
908 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_PASSED_NULL_PARAMETER);
911 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL)) {
912 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
915 if (ctx->cert->key == NULL) {
916 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_INTERNAL_ERROR);
919 new_serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
921 if (new_serverinfo == NULL) {
922 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, ERR_R_MALLOC_FAILURE);
925 ctx->cert->key->serverinfo = new_serverinfo;
926 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
927 ctx->cert->key->serverinfo_length = serverinfo_length;
930 * Now that the serverinfo is validated and stored, go ahead and
931 * register callbacks.
933 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx)) {
934 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO, SSL_R_INVALID_SERVERINFO_DATA);
940 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
942 unsigned char *serverinfo = NULL;
943 size_t serverinfo_length = 0;
944 unsigned char *extension = 0;
945 long extension_length = 0;
948 char namePrefix[] = "SERVERINFO FOR ";
951 size_t num_extensions = 0;
953 if (ctx == NULL || file == NULL) {
954 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
955 ERR_R_PASSED_NULL_PARAMETER);
959 bin = BIO_new(BIO_s_file());
961 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
964 if (BIO_read_filename(bin, file) <= 0) {
965 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
969 for (num_extensions = 0;; num_extensions++) {
970 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length)
973 * There must be at least one extension in this file
975 if (num_extensions == 0) {
976 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
977 SSL_R_NO_PEM_EXTENSIONS);
979 } else /* End of file, we're done */
982 /* Check that PEM name starts with "BEGIN SERVERINFO FOR " */
983 if (strlen(name) < strlen(namePrefix)) {
984 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
985 SSL_R_PEM_NAME_TOO_SHORT);
988 if (strncmp(name, namePrefix, strlen(namePrefix)) != 0) {
989 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
990 SSL_R_PEM_NAME_BAD_PREFIX);
994 * Check that the decoded PEM data is plausible (valid length field)
996 if (extension_length < 4
997 || (extension[2] << 8) + extension[3] != extension_length - 4) {
998 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
1001 /* Append the decoded extension to the serverinfo buffer */
1003 OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
1004 if (serverinfo == NULL) {
1005 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
1008 memcpy(serverinfo + serverinfo_length, extension, extension_length);
1009 serverinfo_length += extension_length;
1013 OPENSSL_free(header);
1015 OPENSSL_free(extension);
1019 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1021 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1023 OPENSSL_free(header);
1024 OPENSSL_free(extension);
1025 OPENSSL_free(serverinfo);