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 #ifndef OPENSSL_NO_TLSEXT
70 static int ssl_set_authz(CERT *c, unsigned char *authz,
73 int SSL_use_certificate(SSL *ssl, X509 *x)
77 SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
80 if (!ssl_cert_inst(&ssl->cert))
82 SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
85 return(ssl_set_cert(ssl->cert,x));
88 #ifndef OPENSSL_NO_STDIO
89 int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
96 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)
105 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
108 if (type == SSL_FILETYPE_ASN1)
111 x=d2i_X509_bio(in,NULL);
113 else if (type == SSL_FILETYPE_PEM)
116 x=PEM_read_bio_X509(in,NULL,ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
120 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
126 SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,j);
130 ret=SSL_use_certificate(ssl,x);
132 if (x != NULL) X509_free(x);
133 if (in != NULL) BIO_free(in);
138 int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
143 x=d2i_X509(NULL,&d,(long)len);
146 SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
150 ret=SSL_use_certificate(ssl,x);
155 #ifndef OPENSSL_NO_RSA
156 int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
163 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
166 if (!ssl_cert_inst(&ssl->cert))
168 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
171 if ((pkey=EVP_PKEY_new()) == NULL)
173 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
178 EVP_PKEY_assign_RSA(pkey,rsa);
180 ret=ssl_set_pkey(ssl->cert,pkey);
186 static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
189 /* Special case for DH: check two DH certificate types for a match.
190 * This means for DH certificates we must set the certificate first.
192 if (pkey->type == EVP_PKEY_DH)
196 x = c->pkeys[SSL_PKEY_DH_RSA].x509;
197 if (x && X509_check_private_key(x, pkey))
199 x = c->pkeys[SSL_PKEY_DH_DSA].x509;
200 if (i == -1 && x && X509_check_private_key(x, pkey))
205 i=ssl_cert_type(NULL,pkey);
208 SSLerr(SSL_F_SSL_SET_PKEY,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
212 if (c->pkeys[i].x509 != NULL)
215 pktmp = X509_get_pubkey(c->pkeys[i].x509);
216 EVP_PKEY_copy_parameters(pktmp,pkey);
217 EVP_PKEY_free(pktmp);
220 #ifndef OPENSSL_NO_RSA
221 /* Don't check the public/private key, this is mostly
222 * for smart cards. */
223 if ((pkey->type == EVP_PKEY_RSA) &&
224 (RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
228 if (!X509_check_private_key(c->pkeys[i].x509,pkey))
230 X509_free(c->pkeys[i].x509);
231 c->pkeys[i].x509 = NULL;
236 if (c->pkeys[i].privatekey != NULL)
237 EVP_PKEY_free(c->pkeys[i].privatekey);
238 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
239 c->pkeys[i].privatekey=pkey;
240 c->key= &(c->pkeys[i]);
246 #ifndef OPENSSL_NO_RSA
247 #ifndef OPENSSL_NO_STDIO
248 int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
254 in=BIO_new(BIO_s_file_internal());
257 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
261 if (BIO_read_filename(in,file) <= 0)
263 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
266 if (type == SSL_FILETYPE_ASN1)
269 rsa=d2i_RSAPrivateKey_bio(in,NULL);
271 else if (type == SSL_FILETYPE_PEM)
274 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
275 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
279 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
284 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,j);
287 ret=SSL_use_RSAPrivateKey(ssl,rsa);
290 if (in != NULL) BIO_free(in);
295 int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len)
298 const unsigned char *p;
302 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
304 SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
308 ret=SSL_use_RSAPrivateKey(ssl,rsa);
312 #endif /* !OPENSSL_NO_RSA */
314 int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
320 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
323 if (!ssl_cert_inst(&ssl->cert))
325 SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
328 ret=ssl_set_pkey(ssl->cert,pkey);
332 #ifndef OPENSSL_NO_STDIO
333 int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
339 in=BIO_new(BIO_s_file_internal());
342 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
346 if (BIO_read_filename(in,file) <= 0)
348 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
351 if (type == SSL_FILETYPE_PEM)
354 pkey=PEM_read_bio_PrivateKey(in,NULL,
355 ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
357 else if (type == SSL_FILETYPE_ASN1)
360 pkey = d2i_PrivateKey_bio(in,NULL);
364 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
369 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,j);
372 ret=SSL_use_PrivateKey(ssl,pkey);
375 if (in != NULL) BIO_free(in);
380 int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d, long len)
383 const unsigned char *p;
387 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
389 SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
393 ret=SSL_use_PrivateKey(ssl,pkey);
398 int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
402 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
405 if (!ssl_cert_inst(&ctx->cert))
407 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
410 return(ssl_set_cert(ctx->cert, x));
413 static int ssl_set_cert(CERT *c, X509 *x)
418 pkey=X509_get_pubkey(x);
421 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
425 i=ssl_cert_type(x,pkey);
428 SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
433 if (c->pkeys[i].privatekey != NULL)
435 EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
438 #ifndef OPENSSL_NO_RSA
439 /* Don't check the public/private key, this is mostly
440 * for smart cards. */
441 if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
442 (RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
443 RSA_METHOD_FLAG_NO_CHECK))
446 #endif /* OPENSSL_NO_RSA */
447 if (!X509_check_private_key(x,c->pkeys[i].privatekey))
449 /* don't fail for a cert/key mismatch, just free
450 * current private key (when switching to a different
451 * cert & key, first this function should be used,
452 * then ssl_set_pkey */
453 EVP_PKEY_free(c->pkeys[i].privatekey);
454 c->pkeys[i].privatekey=NULL;
455 /* clear error queue */
462 if (c->pkeys[i].x509 != NULL)
463 X509_free(c->pkeys[i].x509);
464 CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
466 #ifndef OPENSSL_NO_TLSEXT
467 /* Free the old authz data, if it exists. */
468 if (c->pkeys[i].authz != NULL)
470 OPENSSL_free(c->pkeys[i].authz);
471 c->pkeys[i].authz = NULL;
472 c->pkeys[i].authz_length = 0;
475 /* Free the old serverinfo data, if it exists. */
476 if (c->pkeys[i].serverinfo != NULL)
478 OPENSSL_free(c->pkeys[i].serverinfo);
479 c->pkeys[i].serverinfo = NULL;
480 c->pkeys[i].serverinfo_length = 0;
483 c->key= &(c->pkeys[i]);
489 #ifndef OPENSSL_NO_STDIO
490 int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
497 in=BIO_new(BIO_s_file_internal());
500 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
504 if (BIO_read_filename(in,file) <= 0)
506 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
509 if (type == SSL_FILETYPE_ASN1)
512 x=d2i_X509_bio(in,NULL);
514 else if (type == SSL_FILETYPE_PEM)
517 x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
521 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
527 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
531 ret=SSL_CTX_use_certificate(ctx,x);
533 if (x != NULL) X509_free(x);
534 if (in != NULL) BIO_free(in);
539 int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d)
544 x=d2i_X509(NULL,&d,(long)len);
547 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
551 ret=SSL_CTX_use_certificate(ctx,x);
556 #ifndef OPENSSL_NO_RSA
557 int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
564 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
567 if (!ssl_cert_inst(&ctx->cert))
569 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
572 if ((pkey=EVP_PKEY_new()) == NULL)
574 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
579 EVP_PKEY_assign_RSA(pkey,rsa);
581 ret=ssl_set_pkey(ctx->cert, pkey);
586 #ifndef OPENSSL_NO_STDIO
587 int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
593 in=BIO_new(BIO_s_file_internal());
596 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
600 if (BIO_read_filename(in,file) <= 0)
602 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
605 if (type == SSL_FILETYPE_ASN1)
608 rsa=d2i_RSAPrivateKey_bio(in,NULL);
610 else if (type == SSL_FILETYPE_PEM)
613 rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
614 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
618 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
623 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
626 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
629 if (in != NULL) BIO_free(in);
634 int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
637 const unsigned char *p;
641 if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
643 SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
647 ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
651 #endif /* !OPENSSL_NO_RSA */
653 int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
657 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
660 if (!ssl_cert_inst(&ctx->cert))
662 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
665 return(ssl_set_pkey(ctx->cert,pkey));
668 #ifndef OPENSSL_NO_STDIO
669 int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
675 in=BIO_new(BIO_s_file_internal());
678 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
682 if (BIO_read_filename(in,file) <= 0)
684 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
687 if (type == SSL_FILETYPE_PEM)
690 pkey=PEM_read_bio_PrivateKey(in,NULL,
691 ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
693 else if (type == SSL_FILETYPE_ASN1)
696 pkey = d2i_PrivateKey_bio(in,NULL);
700 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
705 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
708 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
711 if (in != NULL) BIO_free(in);
716 int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const unsigned char *d,
720 const unsigned char *p;
724 if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
726 SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
730 ret=SSL_CTX_use_PrivateKey(ctx,pkey);
736 #ifndef OPENSSL_NO_STDIO
737 /* Read a file that contains our certificate in "PEM" format,
738 * possibly followed by a sequence of CA certificates that should be
739 * sent to the peer in the Certificate message.
741 int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
747 ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
749 in = BIO_new(BIO_s_file_internal());
752 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
756 if (BIO_read_filename(in,file) <= 0)
758 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
762 x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback,
763 ctx->default_passwd_callback_userdata);
766 SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
770 ret = SSL_CTX_use_certificate(ctx, x);
772 if (ERR_peek_error() != 0)
773 ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */
776 /* If we could set up our certificate, now proceed to
777 * the CA certificates.
783 if (ctx->extra_certs != NULL)
785 sk_X509_pop_free(ctx->extra_certs, X509_free);
786 ctx->extra_certs = NULL;
789 while ((ca = PEM_read_bio_X509(in, NULL,
790 ctx->default_passwd_callback,
791 ctx->default_passwd_callback_userdata))
794 r = SSL_CTX_add_extra_chain_cert(ctx, ca);
801 /* Note that we must not free r if it was successfully
802 * added to the chain (while we must free the main
803 * certificate, since its reference count is increased
804 * by SSL_CTX_use_certificate). */
806 /* When the while loop ends, it's usually just EOF. */
807 err = ERR_peek_last_error();
808 if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
811 ret = 0; /* some real error */
815 if (x != NULL) X509_free(x);
816 if (in != NULL) BIO_free(in);
821 #ifndef OPENSSL_NO_TLSEXT
822 /* authz_validate returns true iff authz is well formed, i.e. that it meets the
823 * wire format as documented in the CERT_PKEY structure and that there are no
824 * duplicate entries. */
825 static char authz_validate(const unsigned char *authz, size_t length)
827 unsigned char types_seen_bitmap[32];
832 memset(types_seen_bitmap, 0, sizeof(types_seen_bitmap));
836 unsigned char type, byte, bit;
847 if (types_seen_bitmap[byte] & (1 << bit))
849 types_seen_bitmap[byte] |= (1 << bit);
853 len = ((unsigned short) authz[0]) << 8 |
854 ((unsigned short) authz[1]);
866 static int serverinfo_find_extension(const unsigned char *serverinfo,
867 size_t serverinfo_length,
868 unsigned short extension_type,
869 const unsigned char **extension_data,
870 unsigned short *extension_length)
872 *extension_data = NULL;
873 *extension_length = 0;
874 if (serverinfo == NULL || serverinfo_length == 0)
878 unsigned short type = 0; /* uint16 */
879 unsigned short len = 0; /* uint16 */
881 /* end of serverinfo */
882 if (serverinfo_length == 0)
883 return -1; /* Extension not found */
885 /* read 2-byte type field */
886 if (serverinfo_length < 2)
887 return 0; /* Error */
888 type = (serverinfo[0] << 8) + serverinfo[1];
890 serverinfo_length -= 2;
892 /* read 2-byte len field */
893 if (serverinfo_length < 2)
894 return 0; /* Error */
895 len = (serverinfo[0] << 8) + serverinfo[1];
897 serverinfo_length -= 2;
899 if (len > serverinfo_length)
900 return 0; /* Error */
902 if (type == extension_type)
904 *extension_data = serverinfo;
905 *extension_length = len;
906 return 1; /* Success */
910 serverinfo_length -= len;
912 return 0; /* Error */
915 static int serverinfo_srv_first_cb(SSL *s, unsigned short ext_type,
916 const unsigned char *in,
917 unsigned short inlen, int *al,
922 *al = SSL_AD_DECODE_ERROR;
928 static int serverinfo_srv_second_cb(SSL *s, unsigned short ext_type,
929 const unsigned char **out, unsigned short *outlen,
932 const unsigned char *serverinfo = NULL;
933 size_t serverinfo_length = 0;
935 /* Is there serverinfo data for the chosen server cert? */
936 if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
937 &serverinfo_length)) != 0)
939 /* Find the relevant extension from the serverinfo */
940 int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
941 ext_type, out, outlen);
943 return 0; /* Error */
945 return -1; /* No extension found, don't send extension */
946 return 1; /* Send extension */
948 return -1; /* No serverinfo data found, don't send extension */
951 /* With a NULL context, this function just checks that the serverinfo data
952 parses correctly. With a non-NULL context, it registers callbacks for
953 the included extensions. */
954 static int serverinfo_process_buffer(const unsigned char *serverinfo,
955 size_t serverinfo_length, SSL_CTX *ctx)
957 if (serverinfo == NULL || serverinfo_length == 0)
961 unsigned short ext_type = 0; /* uint16 */
962 unsigned short len = 0; /* uint16 */
964 /* end of serverinfo */
965 if (serverinfo_length == 0)
968 /* read 2-byte type field */
969 if (serverinfo_length < 2)
971 /* FIXME: check for types we understand explicitly? */
973 /* Register callbacks for extensions */
974 ext_type = (serverinfo[0] << 8) + serverinfo[1];
975 if (ctx && !SSL_CTX_set_custom_srv_ext(ctx, ext_type,
976 serverinfo_srv_first_cb,
977 serverinfo_srv_second_cb, NULL))
981 serverinfo_length -= 2;
983 /* read 2-byte len field */
984 if (serverinfo_length < 2)
986 len = (serverinfo[0] << 8) + serverinfo[1];
988 serverinfo_length -= 2;
990 if (len > serverinfo_length)
994 serverinfo_length -= len;
998 static const unsigned char *authz_find_data(const unsigned char *authz,
1000 unsigned char data_type,
1001 size_t *data_length)
1003 if (authz == NULL) return NULL;
1004 if (!authz_validate(authz, authz_length))
1006 SSLerr(SSL_F_AUTHZ_FIND_DATA,SSL_R_INVALID_AUTHZ_DATA);
1020 /* We've validated the authz data, so we don't have to
1021 * check again that we have enough bytes left. */
1022 len = ((unsigned short) authz[0]) << 8 |
1023 ((unsigned short) authz[1]);
1026 if (type == data_type)
1032 authz_length -= len;
1038 static int ssl_set_authz(CERT *c, unsigned char *authz, size_t authz_length)
1040 CERT_PKEY *current_key = c->key;
1041 if (current_key == NULL)
1043 if (!authz_validate(authz, authz_length))
1045 SSLerr(SSL_F_SSL_SET_AUTHZ,SSL_R_INVALID_AUTHZ_DATA);
1048 current_key->authz = OPENSSL_realloc(current_key->authz, authz_length);
1049 if (current_key->authz == NULL)
1051 SSLerr(SSL_F_SSL_SET_AUTHZ,ERR_R_MALLOC_FAILURE);
1054 current_key->authz_length = authz_length;
1055 memcpy(current_key->authz, authz, authz_length);
1059 int SSL_CTX_use_authz(SSL_CTX *ctx, unsigned char *authz,
1060 size_t authz_length)
1064 SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
1067 if (!ssl_cert_inst(&ctx->cert))
1069 SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
1072 return ssl_set_authz(ctx->cert, authz, authz_length);
1075 int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
1076 size_t serverinfo_length)
1078 if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0)
1080 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_PASSED_NULL_PARAMETER);
1083 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL))
1085 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
1088 if (!ssl_cert_inst(&ctx->cert))
1090 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
1093 if (ctx->cert->key == NULL)
1095 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_INTERNAL_ERROR);
1098 ctx->cert->key->serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
1100 if (ctx->cert->key->serverinfo == NULL)
1102 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
1105 memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
1106 ctx->cert->key->serverinfo_length = serverinfo_length;
1108 /* Now that the serverinfo is validated and stored, go ahead and
1109 * register callbacks. */
1110 if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx))
1112 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
1118 int SSL_use_authz(SSL *ssl, unsigned char *authz, size_t authz_length)
1122 SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
1125 if (!ssl_cert_inst(&ssl->cert))
1127 SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
1130 return ssl_set_authz(ssl->cert, authz, authz_length);
1133 const unsigned char *SSL_CTX_get_authz_data(SSL_CTX *ctx, unsigned char type,
1134 size_t *data_length)
1136 CERT_PKEY *current_key;
1138 if (ctx->cert == NULL)
1140 current_key = ctx->cert->key;
1141 if (current_key->authz == NULL)
1143 return authz_find_data(current_key->authz,
1144 current_key->authz_length, type, data_length);
1147 #ifndef OPENSSL_NO_STDIO
1148 /* read_authz returns a newly allocated buffer with authz data */
1149 static unsigned char *read_authz(const char *file, size_t *authz_length)
1151 BIO *authz_in = NULL;
1152 unsigned char *authz = NULL;
1153 /* Allow authzs up to 64KB. */
1154 static const size_t authz_limit = 65536;
1156 unsigned char *ret = NULL;
1158 authz_in = BIO_new(BIO_s_file_internal());
1159 if (authz_in == NULL)
1161 SSLerr(SSL_F_READ_AUTHZ,ERR_R_BUF_LIB);
1165 if (BIO_read_filename(authz_in,file) <= 0)
1167 SSLerr(SSL_F_READ_AUTHZ,ERR_R_SYS_LIB);
1171 authz = OPENSSL_malloc(authz_limit);
1172 read_length = BIO_read(authz_in, authz, authz_limit);
1173 if (read_length == authz_limit || read_length <= 0)
1175 SSLerr(SSL_F_READ_AUTHZ,SSL_R_AUTHZ_DATA_TOO_LARGE);
1176 OPENSSL_free(authz);
1179 *authz_length = read_length;
1182 if (authz_in != NULL) BIO_free(authz_in);
1186 int SSL_CTX_use_authz_file(SSL_CTX *ctx, const char *file)
1188 unsigned char *authz = NULL;
1189 size_t authz_length = 0;
1192 authz = read_authz(file, &authz_length);
1196 ret = SSL_CTX_use_authz(ctx, authz, authz_length);
1197 /* SSL_CTX_use_authz makes a local copy of the authz. */
1198 OPENSSL_free(authz);
1202 int SSL_use_authz_file(SSL *ssl, const char *file)
1204 unsigned char *authz = NULL;
1205 size_t authz_length = 0;
1208 authz = read_authz(file, &authz_length);
1212 ret = SSL_use_authz(ssl, authz, authz_length);
1213 /* SSL_use_authz makes a local copy of the authz. */
1214 OPENSSL_free(authz);
1218 int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
1220 unsigned char *serverinfo = NULL;
1221 size_t serverinfo_length = 0;
1222 unsigned char* extension = 0;
1223 long extension_length = 0;
1225 char* header = NULL;
1228 size_t num_extensions = 0;
1230 if (ctx == NULL || file == NULL)
1232 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,ERR_R_PASSED_NULL_PARAMETER);
1236 bin = BIO_new(BIO_s_file_internal());
1239 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
1242 if (BIO_read_filename(bin, file) <= 0)
1244 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
1248 for (num_extensions=0;; num_extensions++)
1250 if (PEM_read_bio(bin, &name, &header, &extension, &extension_length) == 0)
1252 /* There must be at least one extension in this file */
1253 if (num_extensions == 0)
1255 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
1258 else /* End of file, we're done */
1261 /* Check that the decoded PEM data is plausible (valid length field) */
1262 if (extension_length < 4 || (extension[2] << 8) + extension[3] != extension_length - 4)
1264 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
1267 /* Append the decoded extension to the serverinfo buffer */
1268 serverinfo = OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
1269 if (serverinfo == NULL)
1271 SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
1274 memcpy(serverinfo + serverinfo_length, extension, extension_length);
1275 serverinfo_length += extension_length;
1277 OPENSSL_free(name); name = NULL;
1278 OPENSSL_free(header); header = NULL;
1279 OPENSSL_free(extension); extension = NULL;
1282 ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
1284 /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
1286 OPENSSL_free(header);
1287 OPENSSL_free(extension);
1288 OPENSSL_free(serverinfo);
1293 #endif /* OPENSSL_NO_STDIO */
1294 #endif /* OPENSSL_NO_TLSEXT */