From 682f23e7bb4a52bedf46eff5c4859e1308eda124 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 25 Aug 2015 19:56:24 +0200 Subject: Update build ref --- polarssl/src/library/asn1parse.c | 260 --------------------------------------- 1 file changed, 260 deletions(-) delete mode 100644 polarssl/src/library/asn1parse.c (limited to 'polarssl/src/library/asn1parse.c') diff --git a/polarssl/src/library/asn1parse.c b/polarssl/src/library/asn1parse.c deleted file mode 100644 index 2584774..0000000 --- a/polarssl/src/library/asn1parse.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * Generic ASN.1 parsing - * - * Copyright (C) 2006-2011, Brainspark B.V. - * - * This file is part of PolarSSL (http://www.polarssl.org) - * Lead Maintainer: Paul Bakker - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "polarssl/config.h" - -#if defined(POLARSSL_ASN1_PARSE_C) - -#include "polarssl/asn1.h" - -#if defined(POLARSSL_BIGNUM_C) -#include "polarssl/bignum.h" -#endif - -#include -#include -#include - -/* - * ASN.1 DER decoding routines - */ -int asn1_get_len( unsigned char **p, - const unsigned char *end, - size_t *len ) -{ - if( ( end - *p ) < 1 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - if( ( **p & 0x80 ) == 0 ) - *len = *(*p)++; - else - { - switch( **p & 0x7F ) - { - case 1: - if( ( end - *p ) < 2 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - *len = (*p)[1]; - (*p) += 2; - break; - - case 2: - if( ( end - *p ) < 3 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - *len = ( (*p)[1] << 8 ) | (*p)[2]; - (*p) += 3; - break; - - case 3: - if( ( end - *p ) < 4 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - *len = ( (*p)[1] << 16 ) | ( (*p)[2] << 8 ) | (*p)[3]; - (*p) += 4; - break; - - case 4: - if( ( end - *p ) < 5 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - *len = ( (*p)[1] << 24 ) | ( (*p)[2] << 16 ) | ( (*p)[3] << 8 ) | (*p)[4]; - (*p) += 5; - break; - - default: - return( POLARSSL_ERR_ASN1_INVALID_LENGTH ); - } - } - - if( *len > (size_t) ( end - *p ) ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - return( 0 ); -} - -int asn1_get_tag( unsigned char **p, - const unsigned char *end, - size_t *len, int tag ) -{ - if( ( end - *p ) < 1 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - - if( **p != tag ) - return( POLARSSL_ERR_ASN1_UNEXPECTED_TAG ); - - (*p)++; - - return( asn1_get_len( p, end, len ) ); -} - -int asn1_get_bool( unsigned char **p, - const unsigned char *end, - int *val ) -{ - int ret; - size_t len; - - if( ( ret = asn1_get_tag( p, end, &len, ASN1_BOOLEAN ) ) != 0 ) - return( ret ); - - if( len != 1 ) - return( POLARSSL_ERR_ASN1_INVALID_LENGTH ); - - *val = ( **p != 0 ) ? 1 : 0; - (*p)++; - - return( 0 ); -} - -int asn1_get_int( unsigned char **p, - const unsigned char *end, - int *val ) -{ - int ret; - size_t len; - - if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 ) - return( ret ); - - if( len > sizeof( int ) || ( **p & 0x80 ) != 0 ) - return( POLARSSL_ERR_ASN1_INVALID_LENGTH ); - - *val = 0; - - while( len-- > 0 ) - { - *val = ( *val << 8 ) | **p; - (*p)++; - } - - return( 0 ); -} - -#if defined(POLARSSL_BIGNUM_C) -int asn1_get_mpi( unsigned char **p, - const unsigned char *end, - mpi *X ) -{ - int ret; - size_t len; - - if( ( ret = asn1_get_tag( p, end, &len, ASN1_INTEGER ) ) != 0 ) - return( ret ); - - ret = mpi_read_binary( X, *p, len ); - - *p += len; - - return( ret ); -} -#endif /* POLARSSL_BIGNUM_C */ - -int asn1_get_bitstring( unsigned char **p, const unsigned char *end, - asn1_bitstring *bs) -{ - int ret; - - /* Certificate type is a single byte bitstring */ - if( ( ret = asn1_get_tag( p, end, &bs->len, ASN1_BIT_STRING ) ) != 0 ) - return( ret ); - - /* Check length, subtract one for actual bit string length */ - if ( bs->len < 1 ) - return( POLARSSL_ERR_ASN1_OUT_OF_DATA ); - bs->len -= 1; - - /* Get number of unused bits, ensure unused bits <= 7 */ - bs->unused_bits = **p; - if( bs->unused_bits > 7 ) - return( POLARSSL_ERR_ASN1_INVALID_LENGTH ); - (*p)++; - - /* Get actual bitstring */ - bs->p = *p; - *p += bs->len; - - if( *p != end ) - return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH ); - - return 0; -} - - -/* - * Parses and splits an ASN.1 "SEQUENCE OF " - */ -int asn1_get_sequence_of( unsigned char **p, - const unsigned char *end, - asn1_sequence *cur, - int tag) -{ - int ret; - size_t len; - asn1_buf *buf; - - /* Get main sequence tag */ - if( ( ret = asn1_get_tag( p, end, &len, - ASN1_CONSTRUCTED | ASN1_SEQUENCE ) ) != 0 ) - return( ret ); - - if( *p + len != end ) - return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH ); - - while( *p < end ) - { - buf = &(cur->buf); - buf->tag = **p; - - if( ( ret = asn1_get_tag( p, end, &buf->len, tag ) ) != 0 ) - return( ret ); - - buf->p = *p; - *p += buf->len; - - /* Allocate and assign next pointer */ - if (*p < end) - { - cur->next = (asn1_sequence *) malloc( - sizeof( asn1_sequence ) ); - - if( cur->next == NULL ) - return( POLARSSL_ERR_ASN1_MALLOC_FAILED ); - - cur = cur->next; - } - } - - /* Set final sequence entry's next pointer to NULL */ - cur->next = NULL; - - if( *p != end ) - return( POLARSSL_ERR_ASN1_LENGTH_MISMATCH ); - - return( 0 ); -} - -#endif -- cgit v1.2.3