1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/asn1/a_enum.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "cryptlib.h" 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/asn1.h> 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/bn.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Code for ENUMERATED type: identical to INTEGER apart from a different tag. 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * for comments on encoding see a_int.c 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectint ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v) 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int j,k; 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned int i; 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char buf[sizeof(long)+1]; 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long d; 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->type=V_ASN1_ENUMERATED; 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->length < (int)(sizeof(long)+1)) 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->data != NULL) 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(a->data); 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((a->data=(unsigned char *)OPENSSL_malloc(sizeof(long)+1)) != NULL) 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memset((char *)a->data,0,sizeof(long)+1); 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->data == NULL) 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1err(ASN1_F_ASN1_ENUMERATED_SET,ERR_R_MALLOC_FAILURE); 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0); 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d=v; 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (d < 0) 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d= -d; 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->type=V_ASN1_NEG_ENUMERATED; 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<sizeof(long); i++) 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (d == 0) break; 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project buf[i]=(int)d&0xff; 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project d>>=8; 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=0; 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (k=i-1; k >=0; k--) 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->data[j++]=buf[k]; 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->length=j; 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectlong ASN1_ENUMERATED_get(ASN1_ENUMERATED *a) 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int neg=0,i; 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long r=0; 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a == NULL) return(0L); 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=a->type; 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i == V_ASN1_NEG_ENUMERATED) 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project neg=1; 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if (i != V_ASN1_ENUMERATED) 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return -1; 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->length > (int)sizeof(long)) 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* hmm... a bit ugly */ 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(0xffffffffL); 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a->data == NULL) 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return 0; 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project for (i=0; i<a->length; i++) 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r<<=8; 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project r|=(unsigned char)a->data[i]; 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (neg) r= -r; 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(r); 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai) 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1_ENUMERATED *ret; 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int len,j; 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ai == NULL) 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=M_ASN1_ENUMERATED_new(); 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ai; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret == NULL) 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED,ERR_R_NESTED_ASN1_ERROR); 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(BN_is_negative(bn)) ret->type = V_ASN1_NEG_ENUMERATED; 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else ret->type=V_ASN1_ENUMERATED; 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project j=BN_num_bits(bn); 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project len=((j == 0)?0:((j/8)+1)); 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret->length < len+4) 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project unsigned char *new_data=OPENSSL_realloc(ret->data, len+4); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!new_data) 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1err(ASN1_F_BN_TO_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE); 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto err; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->data=new_data; 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret->length=BN_bn2bin(bn,ret->data); 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecterr: 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret != ai) M_ASN1_ENUMERATED_free(ret); 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(NULL); 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectBIGNUM *ASN1_ENUMERATED_to_BN(ASN1_ENUMERATED *ai, BIGNUM *bn) 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIGNUM *ret; 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ret=BN_bin2bn(ai->data,ai->length,bn)) == NULL) 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ASN1err(ASN1_F_ASN1_ENUMERATED_TO_BN,ASN1_R_BN_LIB); 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else if(ai->type == V_ASN1_NEG_ENUMERATED) BN_set_negative(ret,1); 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 183