Commit 0a060e68 authored by winckel's avatar winckel

Created an asn1 conversions file in common utils to perform conversion from...

Created an asn1 conversions file in common utils to perform conversion from ASN1 structure to integers.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4412 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent d1d6a140
......@@ -8,5 +8,6 @@ ITTI_OBJS += $(ITTI_DIR)/timer.o
UTILS_OBJS = $(ITTI_OBJS)
UTILS_incl = \
UTILS_incl = \
-I$(COMMON_UTILS_DIR) \
-I$(ITTI_DIR)
/*******************************************************************************
Eurecom OpenAirInterface 3
Copyright(c) 1999 - 2010 Eurecom
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Contact Information
Openair Admin: openair_admin@eurecom.fr
Openair Tech : openair_tech@eurecom.fr
Forums : http://forums.eurecom.fsr/openairinterface
Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
*******************************************************************************/
#ifndef ASN1_CONVERSIONS_H_
#define ASN1_CONVERSIONS_H_
#include "BIT_STRING.h"
#include "UTIL/assertions.h"
//-----------------------begin func -------------------
/*! \fn uint8_t BIT_STRING_to_uint8(BIT_STRING_t *)
*\brief This function extract at most a 8 bits value from a BIT_STRING_t object, the exact bits number depend on the BIT_STRING_t contents.
*\param[in] pointer to the BIT_STRING_t object.
*\return the extracted value.
*/
inline uint8_t BIT_STRING_to_uint8(BIT_STRING_t *asn) {
DevCheck ((asn->size == 1), asn->size, 0, 0);
return asn->buf[0] >> asn->bits_unused;
}
/*! \fn uint16_t BIT_STRING_to_uint16(BIT_STRING_t *)
*\brief This function extract at most a 16 bits value from a BIT_STRING_t object, the exact bits number depend on the BIT_STRING_t contents.
*\param[in] pointer to the BIT_STRING_t object.
*\return the extracted value.
*/
inline uint16_t BIT_STRING_to_uint16(BIT_STRING_t *asn) {
uint16_t result = 0;
int index = 0;
DevCheck ((asn->size > 0) && (asn->size <= 2), asn->size, 0, 0);
switch (asn->size) {
case 2:
result |= asn->buf[index++] << (8 - asn->bits_unused);
case 1:
result |= asn->buf[index] >> asn->bits_unused;
break;
default:
break;
}
return result;
}
/*! \fn uint32_t BIT_STRING_to_uint32(BIT_STRING_t *)
*\brief This function extract at most a 32 bits value from a BIT_STRING_t object, the exact bits number depend on the BIT_STRING_t contents.
*\param[in] pointer to the BIT_STRING_t object.
*\return the extracted value.
*/
inline uint32_t BIT_STRING_to_uint32(BIT_STRING_t *asn) {
uint32_t result = 0;
int index;
int shift;
DevCheck ((asn->size > 0) && (asn->size <= 4), asn->size, 0, 0);
shift = ((asn->size - 1) * 8) - asn->bits_unused;
for (index = 0; index < (asn->size - 1); index++) {
result |= asn->buf[index] << shift;
shift -= 8;
}
result |= asn->buf[index] >> asn->bits_unused;
return result;
}
/*! \fn uint64_t BIT_STRING_to_uint64(BIT_STRING_t *)
*\brief This function extract at most a 64 bits value from a BIT_STRING_t object, the exact bits number depend on the BIT_STRING_t contents.
*\param[in] pointer to the BIT_STRING_t object.
*\return the extracted value.
*/
inline uint64_t BIT_STRING_to_uint64(BIT_STRING_t *asn) {
uint64_t result = 0;
int index;
int shift;
DevCheck ((asn->size > 0) && (asn->size <= 8), asn->size, 0, 0);
shift = ((asn->size - 1) * 8) - asn->bits_unused;
for (index = 0; index < (asn->size - 1); index++) {
result |= asn->buf[index] << shift;
shift -= 8;
}
result |= asn->buf[index] >> asn->bits_unused;
return result;
}
#endif
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