1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* tasn_utl.c */ 2e45f106cb6b47af1f21efe76e933bdea2f5dd1caNagendra Modadugu/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * project 2000. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* ==================================================================== 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright (c) 2000-2004 The OpenSSL Project. All rights reserved. 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the above copyright 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the documentation and/or other materials provided with the 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * distribution. 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * software must display the following acknowledgment: 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * endorse or promote products derived from this software without 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * prior written permission. For written permission, please contact 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * licensing@OpenSSL.org. 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5. Products derived from this software may not be called "OpenSSL" 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * nor may "OpenSSL" appear in their names without prior written 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * permission of the OpenSSL Project. 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 6. Redistributions of any form whatsoever must retain the following 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * acknowledgment: 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software developed by the OpenSSL Project 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OF THE POSSIBILITY OF SUCH DAMAGE. 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ==================================================================== 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This product includes cryptographic software written by Eric Young 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (eay@cryptsoft.com). This product includes software written by Tim 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Hudson (tjh@cryptsoft.com). 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stddef.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <string.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1t.h> 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/objects.h> 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/err.h> 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Utility functions for manipulating fields and offsets */ 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Add 'offset' to 'addr' */ 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define offset2ptr(addr, offset) (void *)(((char *) addr) + offset) 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Given an ASN1_ITEM CHOICE type return 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the selector value 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it) 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int *sel = offset2ptr(*pval, it->utype); 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return *sel; 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Given an ASN1_ITEM CHOICE type set 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the selector value, return old value. 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it) 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int *sel, ret; 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sel = offset2ptr(*pval, it->utype); 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = *sel; 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *sel = value; 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ret; 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Do reference counting. The value 'op' decides what to do. 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * if it is +1 then the count is incremented. If op is 0 count is 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * set to 1. If op is -1 count is decremented and the return value 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * is the current refrence count or 0 if no reference count exists. 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it) 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_AUX *aux; 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int *lck, ret; 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((it->itype != ASN1_ITYPE_SEQUENCE) 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project && (it->itype != ASN1_ITYPE_NDEF_SEQUENCE)) 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project aux = it->funcs; 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT)) 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project lck = offset2ptr(*pval, aux->ref_offset); 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (op == 0) 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *lck = 1; 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret = CRYPTO_add(lck, op, aux->ref_lock); 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef REF_PRINT 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fprintf(stderr, "%s: Reference Count: %d\n", it->sname, *lck); 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef REF_CHECK 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret < 0) 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fprintf(stderr, "%s, bad reference count\n", it->sname); 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return ret; 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic ASN1_ENCODING *asn1_get_enc_ptr(ASN1_VALUE **pval, const ASN1_ITEM *it) 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_AUX *aux; 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!pval || !*pval) 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project aux = it->funcs; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!aux || !(aux->flags & ASN1_AFLG_ENCODING)) 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return offset2ptr(*pval, aux->enc_offset); 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it) 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_ENCODING *enc; 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc = asn1_get_enc_ptr(pval, it); 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (enc) 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->enc = NULL; 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->len = 0; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->modified = 1; 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it) 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_ENCODING *enc; 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc = asn1_get_enc_ptr(pval, it); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (enc) 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (enc->enc) 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(enc->enc); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->enc = NULL; 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->len = 0; 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->modified = 1; 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen, 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_ITEM *it) 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_ENCODING *enc; 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc = asn1_get_enc_ptr(pval, it); 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!enc) 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (enc->enc) 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(enc->enc); 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->enc = OPENSSL_malloc(inlen); 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!enc->enc) 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(enc->enc, in, inlen); 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->len = inlen; 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc->modified = 0; 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_ITEM *it) 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_ENCODING *enc; 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc = asn1_get_enc_ptr(pval, it); 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!enc || enc->modified) 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (out) 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(*out, enc->enc, enc->len); 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *out += enc->len; 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (len) 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project *len = enc->len; 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 1; 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Given an ASN1_TEMPLATE get a pointer to a field */ 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_VALUE ** asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_VALUE **pvaltmp; 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (tt->flags & ASN1_TFLG_COMBINE) 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return pval; 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project pvaltmp = offset2ptr(*pval, tt->offset); 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* NOTE for BOOLEAN types the field is just a plain 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * int so we can't return int **, so settle for 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * (int *). 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return pvaltmp; 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Handle ANY DEFINED BY template, find the selector, look up 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the relevant ASN1_TEMPLATE in the table and return it. 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectconst ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int nullerr) 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_ADB *adb; 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const ASN1_ADB_TABLE *atbl; 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long selector; 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_VALUE **sfld; 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!(tt->flags & ASN1_TFLG_ADB_MASK)) 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return tt; 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Else ANY DEFINED BY ... get the table */ 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project adb = ASN1_ADB_ptr(tt->item); 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Get the selector field */ 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sfld = offset2ptr(*pval, adb->offset); 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Check if NULL */ 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!sfld) 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!adb->null_tt) 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return adb->null_tt; 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Convert type to a long: 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * NB: don't check for NID_undef here because it 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * might be a legitimate value in the table 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (tt->flags & ASN1_TFLG_ADB_OID) 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld); 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld); 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Try to find matching entry in table 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Maybe should check application types first to 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * allow application override? Might also be useful 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * to have a flag which indicates table is sorted and 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * we can do a binary search. For now stick to a 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * linear search. 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++) 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (atbl->value == selector) 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return &atbl->tt; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* FIXME: need to search application table too */ 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* No match, return default type */ 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!adb->default_tt) 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return adb->default_tt; 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project err: 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* FIXME: should log the value or OID of unsupported type */ 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (nullerr) 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1err(ASN1_F_ASN1_DO_ADB, 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE); 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return NULL; 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 280