diff options
Diffstat (limited to 'openssl/crypto/asn1/bio_ndef.c')
-rw-r--r-- | openssl/crypto/asn1/bio_ndef.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/openssl/crypto/asn1/bio_ndef.c b/openssl/crypto/asn1/bio_ndef.c deleted file mode 100644 index b91f97a1..00000000 --- a/openssl/crypto/asn1/bio_ndef.c +++ /dev/null @@ -1,243 +0,0 @@ -/* bio_ndef.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project. - */ -/* ==================================================================== - * Copyright (c) 2008 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - */ - -#include <openssl/asn1.h> -#include <openssl/asn1t.h> -#include <openssl/bio.h> -#include <openssl/err.h> - -#include <stdio.h> - -/* Experimental NDEF ASN1 BIO support routines */ - -/* The usage is quite simple, initialize an ASN1 structure, - * get a BIO from it then any data written through the BIO - * will end up translated to approptiate format on the fly. - * The data is streamed out and does *not* need to be - * all held in memory at once. - * - * When the BIO is flushed the output is finalized and any - * signatures etc written out. - * - * The BIO is a 'proper' BIO and can handle non blocking I/O - * correctly. - * - * The usage is simple. The implementation is *not*... - */ - -/* BIO support data stored in the ASN1 BIO ex_arg */ - -typedef struct ndef_aux_st - { - /* ASN1 structure this BIO refers to */ - ASN1_VALUE *val; - const ASN1_ITEM *it; - /* Top of the BIO chain */ - BIO *ndef_bio; - /* Output BIO */ - BIO *out; - /* Boundary where content is inserted */ - unsigned char **boundary; - /* DER buffer start */ - unsigned char *derbuf; - } NDEF_SUPPORT; - -static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg); -static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg); -static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg); -static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg); - -BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it) - { - NDEF_SUPPORT *ndef_aux = NULL; - BIO *asn_bio = NULL; - const ASN1_AUX *aux = it->funcs; - ASN1_STREAM_ARG sarg; - - if (!aux || !aux->asn1_cb) - { - ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED); - return NULL; - } - ndef_aux = OPENSSL_malloc(sizeof(NDEF_SUPPORT)); - asn_bio = BIO_new(BIO_f_asn1()); - - /* ASN1 bio needs to be next to output BIO */ - - out = BIO_push(asn_bio, out); - - if (!ndef_aux || !asn_bio || !out) - goto err; - - BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free); - BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free); - - /* Now let callback prepend any digest, cipher etc BIOs - * ASN1 structure needs. - */ - - sarg.out = out; - sarg.ndef_bio = NULL; - sarg.boundary = NULL; - - if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0) - goto err; - - ndef_aux->val = val; - ndef_aux->it = it; - ndef_aux->ndef_bio = sarg.ndef_bio; - ndef_aux->boundary = sarg.boundary; - ndef_aux->out = out; - - BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux); - - return sarg.ndef_bio; - - err: - if (asn_bio) - BIO_free(asn_bio); - if (ndef_aux) - OPENSSL_free(ndef_aux); - return NULL; - } - -static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg) - { - NDEF_SUPPORT *ndef_aux; - unsigned char *p; - int derlen; - - if (!parg) - return 0; - - ndef_aux = *(NDEF_SUPPORT **)parg; - - derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it); - p = OPENSSL_malloc(derlen); - ndef_aux->derbuf = p; - *pbuf = p; - derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it); - - if (!*ndef_aux->boundary) - return 0; - - *plen = *ndef_aux->boundary - *pbuf; - - return 1; - } - -static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg) - { - NDEF_SUPPORT *ndef_aux; - - if (!parg) - return 0; - - ndef_aux = *(NDEF_SUPPORT **)parg; - - if (ndef_aux->derbuf) - OPENSSL_free(ndef_aux->derbuf); - - ndef_aux->derbuf = NULL; - *pbuf = NULL; - *plen = 0; - return 1; - } - -static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg) - { - NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg; - if (!ndef_prefix_free(b, pbuf, plen, parg)) - return 0; - OPENSSL_free(*pndef_aux); - *pndef_aux = NULL; - return 1; - } - -static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg) - { - NDEF_SUPPORT *ndef_aux; - unsigned char *p; - int derlen; - const ASN1_AUX *aux; - ASN1_STREAM_ARG sarg; - - if (!parg) - return 0; - - ndef_aux = *(NDEF_SUPPORT **)parg; - - aux = ndef_aux->it->funcs; - - /* Finalize structures */ - sarg.ndef_bio = ndef_aux->ndef_bio; - sarg.out = ndef_aux->out; - sarg.boundary = ndef_aux->boundary; - if (aux->asn1_cb(ASN1_OP_STREAM_POST, - &ndef_aux->val, ndef_aux->it, &sarg) <= 0) - return 0; - - derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it); - p = OPENSSL_malloc(derlen); - ndef_aux->derbuf = p; - *pbuf = p; - derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it); - - if (!*ndef_aux->boundary) - return 0; - *pbuf = *ndef_aux->boundary; - *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf); - - return 1; - } |