195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * All rights reserved. 395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This package is an SSL implementation written 595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * by Eric Young (eay@cryptsoft.com). 695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The implementation was written so as to conform with Netscapes SSL. 795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This library is free for commercial and non-commercial use as long as 995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the following conditions are aheared to. The following conditions 1095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * apply to all code found in this distribution, be it the RC4, RSA, 1195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * included with this distribution is covered by the same copyright terms 1395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 1595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Copyright remains Eric Young's, and as such any Copyright notices in 1695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the code are not to be removed. 1795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * If this package is used in a product, Eric Young should be given attribution 1895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * as the author of the parts of the library used. 1995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This can be in the form of a textual message at program startup or 2095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * in documentation (online or textual) provided with the package. 2195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 2295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Redistribution and use in source and binary forms, with or without 2395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * modification, are permitted provided that the following conditions 2495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * are met: 2595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 1. Redistributions of source code must retain the copyright 2695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * notice, this list of conditions and the following disclaimer. 2795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 2. Redistributions in binary form must reproduce the above copyright 2895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * notice, this list of conditions and the following disclaimer in the 2995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * documentation and/or other materials provided with the distribution. 3095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 3. All advertising materials mentioning features or use of this software 3195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * must display the following acknowledgement: 3295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * "This product includes cryptographic software written by 3395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Eric Young (eay@cryptsoft.com)" 3495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The word 'cryptographic' can be left out if the rouines from the library 3595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * being used are not cryptographic related :-). 3695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 4. If you include any Windows specific code (or a derivative thereof) from 3795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the apps directory (application code) you must include an acknowledgement: 3895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 3995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 4095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 4995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * SUCH DAMAGE. 5195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 5295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The licence and distribution terms for any publically available version or 5395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * derivative of this code cannot be changed. i.e. this code cannot simply be 5495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * copied and put under another distribution licence 5595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * [including the GNU Public Licence.] */ 5695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 5795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/asn1.h> 5895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 5995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <assert.h> 6095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 6195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/asn1t.h> 6295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/bio.h> 6395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/err.h> 6495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/mem.h> 6595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 6695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 6795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* Experimental NDEF ASN1 BIO support routines */ 6895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 6995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* The usage is quite simple, initialize an ASN1 structure, 7095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * get a BIO from it then any data written through the BIO 7195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * will end up translated to approptiate format on the fly. 7295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The data is streamed out and does *not* need to be 7395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * all held in memory at once. 7495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 7595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * When the BIO is flushed the output is finalized and any 7695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * signatures etc written out. 7795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 7895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The BIO is a 'proper' BIO and can handle non blocking I/O 7995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * correctly. 8095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 8195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The usage is simple. The implementation is *not*... 8295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley */ 8395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 8495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* BIO support data stored in the ASN1 BIO ex_arg */ 8595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 8695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleytypedef struct ndef_aux_st 8795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 8895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* ASN1 structure this BIO refers to */ 8995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_VALUE *val; 9095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley const ASN1_ITEM *it; 9195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* Top of the BIO chain */ 9295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO *ndef_bio; 9395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* Output BIO */ 9495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO *out; 9595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* Boundary where content is inserted */ 9695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley unsigned char **boundary; 9795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* DER buffer start */ 9895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley unsigned char *derbuf; 9995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } NDEF_SUPPORT; 10095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 10195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg); 10295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg); 10395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg); 10495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg); 10595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 10695c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyBIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it) 10795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 10895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley NDEF_SUPPORT *ndef_aux = NULL; 10995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO *asn_bio = NULL; 11095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley const ASN1_AUX *aux = it->funcs; 11195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_STREAM_ARG sarg; 11295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 11395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!aux || !aux->asn1_cb) 11495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 11595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley OPENSSL_PUT_ERROR(ASN1, BIO_new_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED); 11695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return NULL; 11795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 11895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux = OPENSSL_malloc(sizeof(NDEF_SUPPORT)); 11995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley asn_bio = BIO_new(BIO_f_asn1()); 12095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 12195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* ASN1 bio needs to be next to output BIO */ 12295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 12395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley out = BIO_push(asn_bio, out); 12495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 12595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!ndef_aux || !asn_bio || !out) 12695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley goto err; 12795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 12895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free); 12995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free); 13095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 13195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* Now let callback prepend any digest, cipher etc BIOs 13295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * ASN1 structure needs. 13395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley */ 13495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 13595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.out = out; 13695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.ndef_bio = NULL; 13795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.boundary = NULL; 13895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 13995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0) 14095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley goto err; 14195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 14295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->val = val; 14395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->it = it; 14495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->ndef_bio = sarg.ndef_bio; 14595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->boundary = sarg.boundary; 14695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->out = out; 14795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 14895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux); 14995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 15095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return sarg.ndef_bio; 15195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 15295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley err: 15395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (asn_bio) 15495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley BIO_free(asn_bio); 15595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (ndef_aux) 15695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley OPENSSL_free(ndef_aux); 15795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return NULL; 15895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 15995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 16095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg) 16195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 16295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley NDEF_SUPPORT *ndef_aux; 16395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley unsigned char *p; 16495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley int derlen; 16595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 16695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!parg) 16795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 16895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 16995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux = *(NDEF_SUPPORT **)parg; 17095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 17195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it); 17295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley p = OPENSSL_malloc(derlen); 17395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->derbuf = p; 17495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *pbuf = p; 17595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it); 17695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 17795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!*ndef_aux->boundary) 17895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 17995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 18095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *plen = *ndef_aux->boundary - *pbuf; 18195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 18295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 1; 18395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 18495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 18595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg) 18695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 18795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley NDEF_SUPPORT *ndef_aux; 18895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 18995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!parg) 19095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 19195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 19295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux = *(NDEF_SUPPORT **)parg; 19395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 19495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (ndef_aux->derbuf) 19595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley OPENSSL_free(ndef_aux->derbuf); 19695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 19795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->derbuf = NULL; 19895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *pbuf = NULL; 19995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *plen = 0; 20095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 1; 20195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 20295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 20395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg) 20495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 20595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg; 20695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!ndef_prefix_free(b, pbuf, plen, parg)) 20795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 20895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley OPENSSL_free(*pndef_aux); 20995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *pndef_aux = NULL; 21095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 1; 21195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 21295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 21395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg) 21495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley { 21595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley NDEF_SUPPORT *ndef_aux; 21695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley unsigned char *p; 21795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley int derlen; 21895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley const ASN1_AUX *aux; 21995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_STREAM_ARG sarg; 22095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 22195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!parg) 22295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 22395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 22495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux = *(NDEF_SUPPORT **)parg; 22595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 22695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley aux = ndef_aux->it->funcs; 22795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 22895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* Finalize structures */ 22995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.ndef_bio = ndef_aux->ndef_bio; 23095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.out = ndef_aux->out; 23195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley sarg.boundary = ndef_aux->boundary; 23295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (aux->asn1_cb(ASN1_OP_STREAM_POST, 23395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley &ndef_aux->val, ndef_aux->it, &sarg) <= 0) 23495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 23595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 23695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it); 23795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley p = OPENSSL_malloc(derlen); 23895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ndef_aux->derbuf = p; 23995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *pbuf = p; 24095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it); 24195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 24295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if (!*ndef_aux->boundary) 24395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 0; 24495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *pbuf = *ndef_aux->boundary; 24595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf); 24695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 24795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 1; 24895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 249