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 if (!ssl_cert_inst(&ssl->cert))
78 SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
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_internal());
95 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
99 if (BIO_read_filename(in,file) <= 0)
101 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
104 if (type == SSL_FILETYPE_ASN1)
107 x=d2i_X509_bio(in,NULL);
109 else if (type == SSL_FILETYPE_PEM)
112 x=PEM_read_bio_X509(in,NULL,ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
116 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
122 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,j);
126 ret=SSL_use_certificate(ssl,x);
128 if (x != NULL) X509_free(x);
129 if (in != NULL) BIO_free(in);
134 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
139 x=d2i_X509(NULL,&d,(long)len);
142 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
146 ret=SSL_use_certificate(ssl,x);
151 #ifndef OPENSSL_NO_RSA
152 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
159 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
162 if (!ssl_cert_inst(&ssl->cert))
164 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
167 if ((pkey=EVP_PKEY_new()) == NULL)
169 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
174 EVP_PKEY_assign_RSA(pkey,rsa);
176 ret=ssl_set_pkey(ssl->cert,pkey);
182 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
185 /* Special case for DH: check two DH certificate types for a match.
186 * This means for DH certificates we must set the certificate first.
188 if (pkey->type == EVP_PKEY_DH)
192 x = c->pkeys[SSL_PKEY_DH_RSA].x509;
193 if (x && X509_check_private_key(x, pkey))
195 x = c->pkeys[SSL_PKEY_DH_DSA].x509;
196 if (i == -1 && x && X509_check_private_key(x, pkey))
201 i=ssl_cert_type(NULL,pkey);
204 SSLerr(SSL_F_SSL_SET_PKEY,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
208 if (c->pkeys[i].x509 != NULL)
211 pktmp = X509_get_pubkey(c->pkeys[i].x509);
212 EVP_PKEY_copy_parameters(pktmp,pkey);
213 EVP_PKEY_free(pktmp);
216 #ifndef OPENSSL_NO_RSA
217 /* Don't check the public/private key, this is mostly
218 * for smart cards. */
219 if ((pkey->type == EVP_PKEY_RSA) &&
220 (RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
224 if (!X509_check_private_key(c->pkeys[i].x509,pkey))
226 X509_free(c->pkeys[i].x509);
227 c->pkeys[i].x509 = NULL;
232 if (c->pkeys[i].privatekey != NULL)
233 EVP_PKEY_free(c->pkeys[i].privatekey);
234 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
235 c->pkeys[i].privatekey=pkey;
236 c->key= &(c->pkeys[i]);
242 #ifndef OPENSSL_NO_RSA
243 #ifndef OPENSSL_NO_STDIO
244 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
250 in=BIO_new(BIO_s_file_internal());
253 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
257 if (BIO_read_filename(in,file) <= 0)
259 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
262 if (type == SSL_FILETYPE_ASN1)
265 rsa=d2i_RSAPrivateKey_bio(in,NULL);
267 else if (type == SSL_FILETYPE_PEM)
270 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
271 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
275 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
280 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,j);
283 ret=SSL_use_RSAPrivateKey(ssl,rsa);
286 if (in != NULL) BIO_free(in);
291 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len)
294 const unsigned char *p;
298 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
300 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
304 ret=SSL_use_RSAPrivateKey(ssl,rsa);
308 #endif /* !OPENSSL_NO_RSA */
310 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
316 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
319 if (!ssl_cert_inst(&ssl->cert))
321 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
324 ret=ssl_set_pkey(ssl->cert,pkey);
328 #ifndef OPENSSL_NO_STDIO
329 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
335 in=BIO_new(BIO_s_file_internal());
338 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
342 if (BIO_read_filename(in,file) <= 0)
344 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
347 if (type == SSL_FILETYPE_PEM)
350 pkey=PEM_read_bio_PrivateKey(in,NULL,
351 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
353 else if (type == SSL_FILETYPE_ASN1)
356 pkey = d2i_PrivateKey_bio(in,NULL);
360 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
365 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,j);
368 ret=SSL_use_PrivateKey(ssl,pkey);
371 if (in != NULL) BIO_free(in);
376 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d, long len)
379 const unsigned char *p;
383 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
385 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
389 ret=SSL_use_PrivateKey(ssl,pkey);
394 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
398 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
401 if (!ssl_cert_inst(&ctx->cert))
403 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
406 return(ssl_set_cert(ctx->cert, x));
409 static int ssl_set_cert(CERT *c, X509 *x)
414 pkey=X509_get_pubkey(x);
417 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
421 i=ssl_cert_type(x,pkey);
424 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
429 if (c->pkeys[i].privatekey != NULL)
431 EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
434 #ifndef OPENSSL_NO_RSA
435 /* Don't check the public/private key, this is mostly
436 * for smart cards. */
437 if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
438 (RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
439 RSA_METHOD_FLAG_NO_CHECK))
442 #endif /* OPENSSL_NO_RSA */
443 if (!X509_check_private_key(x,c->pkeys[i].privatekey))
445 /* don't fail for a cert/key mismatch, just free
446 * current private key (when switching to a different
447 * cert & key, first this function should be used,
448 * then ssl_set_pkey */
449 EVP_PKEY_free(c->pkeys[i].privatekey);
450 c->pkeys[i].privatekey=NULL;
451 /* clear error queue */
458 if (c->pkeys[i].x509 != NULL)
459 X509_free(c->pkeys[i].x509);
460 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
462 c->key= &(c->pkeys[i]);
468 #ifndef OPENSSL_NO_STDIO
469 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
476 in=BIO_new(BIO_s_file_internal());
479 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
483 if (BIO_read_filename(in,file) <= 0)
485 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
488 if (type == SSL_FILETYPE_ASN1)
491 x=d2i_X509_bio(in,NULL);
493 else if (type == SSL_FILETYPE_PEM)
496 x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
500 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
506 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
510 ret=SSL_CTX_use_certificate(ctx,x);
512 if (x != NULL) X509_free(x);
513 if (in != NULL) BIO_free(in);
518 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d)
523 x=d2i_X509(NULL,&d,(long)len);
526 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
530 ret=SSL_CTX_use_certificate(ctx,x);
535 #ifndef OPENSSL_NO_RSA
536 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
543 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
546 if (!ssl_cert_inst(&ctx->cert))
548 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
551 if ((pkey=EVP_PKEY_new()) == NULL)
553 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
558 EVP_PKEY_assign_RSA(pkey,rsa);
560 ret=ssl_set_pkey(ctx->cert, pkey);
565 #ifndef OPENSSL_NO_STDIO
566 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
572 in=BIO_new(BIO_s_file_internal());
575 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
579 if (BIO_read_filename(in,file) <= 0)
581 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
584 if (type == SSL_FILETYPE_ASN1)
587 rsa=d2i_RSAPrivateKey_bio(in,NULL);
589 else if (type == SSL_FILETYPE_PEM)
592 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
593 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
597 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
602 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
605 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
608 if (in != NULL) BIO_free(in);
613 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
616 const unsigned char *p;
620 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
622 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
626 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
630 #endif /* !OPENSSL_NO_RSA */
632 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
636 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
639 if (!ssl_cert_inst(&ctx->cert))
641 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
644 return(ssl_set_pkey(ctx->cert,pkey));
647 #ifndef OPENSSL_NO_STDIO
648 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
654 in=BIO_new(BIO_s_file_internal());
657 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
661 if (BIO_read_filename(in,file) <= 0)
663 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
666 if (type == SSL_FILETYPE_PEM)
669 pkey=PEM_read_bio_PrivateKey(in,NULL,
670 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
672 else if (type == SSL_FILETYPE_ASN1)
675 pkey = d2i_PrivateKey_bio(in,NULL);
679 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
684 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
687 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
690 if (in != NULL) BIO_free(in);
695 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const unsigned char *d,
699 const unsigned char *p;
703 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
705 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
709 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
715 #ifndef OPENSSL_NO_STDIO
716 /* Read a file that contains our certificate in "PEM" format,
717 * possibly followed by a sequence of CA certificates that should be
718 * sent to the peer in the Certificate message.
720 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
726 ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
728 in = BIO_new(BIO_s_file_internal());
731 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
735 if (BIO_read_filename(in,file) <= 0)
737 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
741 x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback,
742 ctx->default_passwd_callback_userdata);
745 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
749 ret = SSL_CTX_use_certificate(ctx, x);
751 if (ERR_peek_error() != 0)
752 ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */
755 /* If we could set up our certificate, now proceed to
756 * the CA certificates.
762 SSL_CTX_clear_chain_certs(ctx);
764 while ((ca = PEM_read_bio_X509(in, NULL,
765 ctx->default_passwd_callback,
766 ctx->default_passwd_callback_userdata))
769 r = SSL_CTX_add0_chain_cert(ctx, ca);
776 /* Note that we must not free r if it was successfully
777 * added to the chain (while we must free the main
778 * certificate, since its reference count is increased
779 * by SSL_CTX_use_certificate). */
781 /* When the while loop ends, it's usually just EOF. */
782 err = ERR_peek_last_error();
783 if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
786 ret = 0; /* some real error */
790 if (x != NULL) X509_free(x);
791 if (in != NULL) BIO_free(in);
796 #ifndef OPENSSL_NO_TLSEXT
797 static int serverinfo_find_extension(const unsigned char *serverinfo,
798 size_t serverinfo_length,
799 unsigned short extension_type,
800 const unsigned char **extension_data,
801 unsigned short *extension_length)
803 *extension_data = NULL;
804 *extension_length = 0;
805 if (serverinfo == NULL || serverinfo_length == 0)
809 unsigned short type = 0; /* uint16 */
810 unsigned short len = 0; /* uint16 */
812 /* end of serverinfo */
813 if (serverinfo_length == 0)
814 return -1; /* Extension not found */
816 /* read 2-byte type field */
817 if (serverinfo_length < 2)
818 return 0; /* Error */
819 type = (serverinfo[0] << 8) + serverinfo[1];
821 serverinfo_length -= 2;
823 /* read 2-byte len field */
824 if (serverinfo_length < 2)
825 return 0; /* Error */
826 len = (serverinfo[0] << 8) + serverinfo[1];
828 serverinfo_length -= 2;
830 if (len > serverinfo_length)
831 return 0; /* Error */
833 if (type == extension_type)
835 *extension_data = serverinfo;
836 *extension_length = len;
837 return 1; /* Success */
841 serverinfo_length -= len;
843 return 0; /* Error */
846 static int serverinfo_srv_first_cb(SSL *s, unsigned short ext_type,
847 const unsigned char *in,
848 unsigned short inlen, int *al,
855 *al = SSL_AD_DECODE_ERROR;
859 /* if already in list, error out */
860 for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
862 if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
864 *al = SSL_AD_DECODE_ERROR;
868 s->s3->serverinfo_client_tlsext_custom_types_count++;
869 s->s3->serverinfo_client_tlsext_custom_types = OPENSSL_realloc(
870 s->s3->serverinfo_client_tlsext_custom_types,
871 s->s3->serverinfo_client_tlsext_custom_types_count * 2);
872 if (s->s3->serverinfo_client_tlsext_custom_types == NULL)
874 s->s3->serverinfo_client_tlsext_custom_types_count = 0;
875 *al = TLS1_AD_INTERNAL_ERROR;
878 s->s3->serverinfo_client_tlsext_custom_types[
879 s->s3->serverinfo_client_tlsext_custom_types_count - 1] = ext_type;
884 static int serverinfo_srv_second_cb(SSL *s, unsigned short ext_type,
885 const unsigned char **out, unsigned short *outlen,
888 const unsigned char *serverinfo = NULL;
889 size_t serverinfo_length = 0;
891 unsigned int match = 0;
892 /* Did the client send a TLS extension for this type? */
893 for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
895 if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
903 /* extension not sent by client...don't send extension */
907 /* Is there serverinfo data for the chosen server cert? */
908 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
909 &serverinfo_length)) != 0)
911 /* Find the relevant extension from the serverinfo */
912 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
913 ext_type, out, outlen);
915 return 0; /* Error */
917 return -1; /* No extension found, don't send extension */
918 return 1; /* Send extension */
920 return -1; /* No serverinfo data found, don't send extension */
923 /* With a NULL context, this function just checks that the serverinfo data
924 parses correctly. With a non-NULL context, it registers callbacks for
925 the included extensions. */
926 static int serverinfo_process_buffer(const unsigned char *serverinfo,
927 size_t serverinfo_length, SSL_CTX *ctx)
929 if (serverinfo == NULL || serverinfo_length == 0)
933 unsigned short ext_type = 0; /* uint16 */
934 unsigned short len = 0; /* uint16 */
936 /* end of serverinfo */
937 if (serverinfo_length == 0)
940 /* read 2-byte type field */
941 if (serverinfo_length < 2)
943 /* FIXME: check for types we understand explicitly? */
945 /* Register callbacks for extensions */
946 ext_type = (serverinfo[0] << 8) + serverinfo[1];
947 if (ctx && !SSL_CTX_set_custom_srv_ext(ctx, ext_type,
948 serverinfo_srv_first_cb,
949 serverinfo_srv_second_cb, NULL))
953 serverinfo_length -= 2;
955 /* read 2-byte len field */
956 if (serverinfo_length < 2)
958 len = (serverinfo[0] << 8) + serverinfo[1];
960 serverinfo_length -= 2;
962 if (len > serverinfo_length)
966 serverinfo_length -= len;
970 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
971 size_t serverinfo_length)
973 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0)
975 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_PASSED_NULL_PARAMETER);
978 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL))
980 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
983 if (!ssl_cert_inst(&ctx->cert))
985 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
988 if (ctx->cert->key == NULL)
990 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_INTERNAL_ERROR);
993 ctx->cert->key->serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
995 if (ctx->cert->key->serverinfo == NULL)
997 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
1000 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
1001 ctx->cert->key->serverinfo_length = serverinfo_length;
1003 /* Now that the serverinfo is validated and stored, go ahead and
1004 * register callbacks. */
1005 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx))
1007 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
1013 #ifndef OPENSSL_NO_STDIO
1014 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
1016 unsigned char *serverinfo = NULL;
1017 size_t serverinfo_length = 0;
1018 unsigned char* extension = 0;
1019 long extension_length = 0;
1021 char* header = NULL;
1022 char namePrefix[] = "SERVERINFO FOR ";
1025 size_t num_extensions = 0;
1027 if (ctx == NULL || file == NULL)
1029 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,ERR_R_PASSED_NULL_PARAMETER);
1033 bin = BIO_new(BIO_s_file_internal());
1036 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
1039 if (BIO_read_filename(bin, file) <= 0)
1041 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
1045 for (num_extensions=0;; num_extensions++)
1047 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length) == 0)
1049 /* There must be at least one extension in this file */
1050 if (num_extensions == 0)
1052 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_NO_PEM_EXTENSIONS);
1055 else /* End of file, we're done */
1058 /* Check that PEM name starts with "BEGIN SERVERINFO FOR " */
1059 if (strlen(name) < strlen(namePrefix))
1061 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_PEM_NAME_TOO_SHORT);
1064 if (strncmp(name, namePrefix, strlen(namePrefix)) != 0)
1066 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_PEM_NAME_BAD_PREFIX);
1069 /* Check that the decoded PEM data is plausible (valid length field) */
1070 if (extension_length < 4 || (extension[2] << 8) + extension[3] != extension_length - 4)
1072 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
1075 /* Append the decoded extension to the serverinfo buffer */
1076 serverinfo = OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
1077 if (serverinfo == NULL)
1079 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
1082 memcpy(serverinfo + serverinfo_length, extension, extension_length);
1083 serverinfo_length += extension_length;
1085 OPENSSL_free(name); name = NULL;
1086 OPENSSL_free(header); header = NULL;
1087 OPENSSL_free(extension); extension = NULL;
1090 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1092 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1094 OPENSSL_free(header);
1095 OPENSSL_free(extension);
1096 OPENSSL_free(serverinfo);
1101 #endif /* OPENSSL_NO_STDIO */
1102 #endif /* OPENSSL_NO_TLSEXT */