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/*****************************************************************************
# *
# Copyright 2019 AT&T Intellectual Property *
# *
# Licensed under the Apache License, Version 2.0 (the "License"); *
# you may not use this file except in compliance with the License. *
# You may obtain a copy of the License at *
# *
# http://www.apache.org/licenses/LICENSE-2.0 *
# *
# Unless required by applicable law or agreed to in writing, software *
# distributed under the License is distributed on an "AS IS" BASIS, *
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
# See the License for the specific language governing permissions and *
# limitations under the License. *
# *
******************************************************************************/
/*-
* Copyright (c) 2004, 2007 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
/*
* Read the NativeInteger.h for the explanation wrt. differences between
* INTEGER and NativeInteger.
* Basically, both are decoders and encoders of ASN.1 INTEGER type, but this
* implementation deals with the standard (machine-specific) representation
* of them instead of using the platform-independent buffer.
*/
#include <asn_internal.h>
#include <NativeEnumerated.h>
/*
* NativeEnumerated basic type description.
*/
static const ber_tlv_tag_t asn_DEF_NativeEnumerated_tags[] = {
(ASN_TAG_CLASS_UNIVERSAL | (10 << 2))
};
asn_TYPE_operation_t asn_OP_NativeEnumerated = {
NativeInteger_free,
NativeInteger_print,
NativeInteger_compare,
NativeInteger_decode_ber,
NativeInteger_encode_der,
NativeInteger_decode_xer,
NativeEnumerated_encode_xer,
#ifdef ASN_DISABLE_OER_SUPPORT
0,
0,
#else
NativeEnumerated_decode_oer,
NativeEnumerated_encode_oer,
#endif /* ASN_DISABLE_OER_SUPPORT */
#ifdef ASN_DISABLE_PER_SUPPORT
0,
0,
0,
0,
#else
NativeEnumerated_decode_uper,
NativeEnumerated_encode_uper,
NativeEnumerated_decode_aper,
NativeEnumerated_encode_aper,
#endif /* ASN_DISABLE_PER_SUPPORT */
NativeEnumerated_random_fill,
0 /* Use generic outmost tag fetcher */
};
asn_TYPE_descriptor_t asn_DEF_NativeEnumerated = {
"ENUMERATED", /* The ASN.1 type is still ENUMERATED */
"ENUMERATED",
&asn_OP_NativeEnumerated,
asn_DEF_NativeEnumerated_tags,
sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
asn_DEF_NativeEnumerated_tags, /* Same as above */
sizeof(asn_DEF_NativeEnumerated_tags) / sizeof(asn_DEF_NativeEnumerated_tags[0]),
{ 0, 0, asn_generic_no_constraint },
0, 0, /* No members */
0 /* No specifics */
};
asn_enc_rval_t
NativeEnumerated_encode_xer(const asn_TYPE_descriptor_t *td, const void *sptr,
int ilevel, enum xer_encoder_flags_e flags,
asn_app_consume_bytes_f *cb, void *app_key) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_enc_rval_t er = {0,0,0};
const long *native = (const long *)sptr;
const asn_INTEGER_enum_map_t *el;
(void)ilevel;
(void)flags;
if(!native) ASN__ENCODE_FAILED;
el = INTEGER_map_value2enum(specs, *native);
if(el) {
er.encoded =
asn__format_to_callback(cb, app_key, "<%s/>", el->enum_name);
if(er.encoded < 0) ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
} else {
ASN_DEBUG(
"ASN.1 forbids dealing with "
"unknown value of ENUMERATED type");
ASN__ENCODE_FAILED;
}
}
asn_dec_rval_t
NativeEnumerated_decode_uper(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
void **sptr, asn_per_data_t *pd) {
const asn_INTEGER_specifics_t *specs = td->specifics;
asn_dec_rval_t rval = { RC_OK, 0 };
long *native = (long *)*sptr;
const asn_per_constraint_t *ct = NULL; // BMC
long value;
(void)opt_codec_ctx;
if(constraints) ct = &constraints->value;
else if(td->encoding_constraints.per_constraints)
ct = &td->encoding_constraints.per_constraints->value;
else ASN__DECODE_FAILED; /* Mandatory! */
if(!specs) ASN__DECODE_FAILED;
if(!native) {
native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
if(!native) ASN__DECODE_FAILED;
}
ASN_DEBUG("Decoding %s as NativeEnumerated", td->name);
if(ct && ct->flags & APC_EXTENSIBLE) { // BMC
int inext = per_get_few_bits(pd, 1);
if(inext < 0) ASN__DECODE_STARVED;
if(inext) ct = 0;
}
if(ct && ct->range_bits >= 0) {
value = per_get_few_bits(pd, ct->range_bits);
if(value < 0) ASN__DECODE_STARVED;
if(value >= (specs->extension
? specs->extension - 1 : specs->map_count))
ASN__DECODE_FAILED;
} else {
if(!specs->extension)
ASN__DECODE_FAILED;
/*
* X.691, #10.6: normally small non-negative whole number;
*/
value = uper_get_nsnnwn(pd);
if(value < 0) ASN__DECODE_STARVED;
value += specs->extension - 1;
if(value >= specs->map_count)
ASN__DECODE_FAILED;
}
*native = specs->value2enum[value].nat_value;
ASN_DEBUG("Decoded %s = %ld", td->name, *native);
return rval;
}
static int
NativeEnumerated__compar_value2enum(const void *ap, const void *bp) {
const asn_INTEGER_enum_map_t *a = ap;
const asn_INTEGER_enum_map_t *b = bp;
if(a->nat_value == b->nat_value)
return 0;
if(a->nat_value < b->nat_value)
return -1;
return 1;
}
asn_enc_rval_t
NativeEnumerated_encode_uper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const asn_INTEGER_specifics_t *specs =
(const asn_INTEGER_specifics_t *)td->specifics;
asn_enc_rval_t er = {0,0,0};
long native, value;
const asn_per_constraint_t *ct = NULL; // BMC
int inext = 0;
asn_INTEGER_enum_map_t key;
const asn_INTEGER_enum_map_t *kf;
if(!sptr) ASN__ENCODE_FAILED;
if(!specs) ASN__ENCODE_FAILED;
if(constraints) ct = &constraints->value;
else if(td->encoding_constraints.per_constraints)
ct = &td->encoding_constraints.per_constraints->value;
else ASN__ENCODE_FAILED; /* Mandatory! */
ASN_DEBUG("Encoding %s as NativeEnumerated", td->name);
er.encoded = 0;
native = *(const long *)sptr;
key.nat_value = native;
kf = bsearch(&key, specs->value2enum, specs->map_count,
sizeof(key), NativeEnumerated__compar_value2enum);
if(!kf) {
ASN_DEBUG("No element corresponds to %ld", native);
ASN__ENCODE_FAILED;
}
value = kf - specs->value2enum;
if(ct && ct->range_bits >= 0) { // BMC
int cmpWith = specs->extension
? specs->extension - 1 : specs->map_count;
if(value >= cmpWith)
inext = 1;
}
if(ct && ct->flags & APC_EXTENSIBLE) { // BMC
if(per_put_few_bits(po, inext, 1))
ASN__ENCODE_FAILED;
if(inext) ct = 0;
} else if(inext) {
ASN__ENCODE_FAILED;
}
if(ct && ct->range_bits >= 0) {
if(per_put_few_bits(po, value, ct->range_bits))
ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
}
if(!specs->extension)
ASN__ENCODE_FAILED;
/*
* X.691, #10.6: normally small non-negative whole number;
*/
ASN_DEBUG("value = %ld, ext = %d, inext = %d, res = %ld",
value, specs->extension, inext,
value - (inext ? (specs->extension - 1) : 0));
if(uper_put_nsnnwn(po, value - (inext ? (specs->extension - 1) : 0)))
ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
}
asn_dec_rval_t
NativeEnumerated_decode_aper(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
void **sptr, asn_per_data_t *pd) {
const asn_INTEGER_specifics_t *specs = (const asn_INTEGER_specifics_t *)td->specifics;
asn_dec_rval_t rval = { RC_OK, 0 };
long *native = (long *)*sptr;
const asn_per_constraint_t *ct = NULL; // BMC
long value;
(void)opt_codec_ctx;
if(constraints) ct = &constraints->value;
else if(td->encoding_constraints.per_constraints)
ct = &td->encoding_constraints.per_constraints->value;
else ASN__DECODE_FAILED; /* Mandatory! */
if(!specs) ASN__DECODE_FAILED;
if(!native) {
native = (long *)(*sptr = CALLOC(1, sizeof(*native)));
if(!native) ASN__DECODE_FAILED;
}
ASN_DEBUG("Decoding %s as NativeEnumerated", td->name);
if(ct && ct->flags & APC_EXTENSIBLE) { // BMC
int inext = per_get_few_bits(pd, 1);
if(inext < 0) ASN__DECODE_STARVED;
if(inext) ct = 0;
}
/* Deal with APER padding */
if(ct && ct->upper_bound >= 255) {
int padding = 0;
padding = (8 - (pd->moved % 8)) % 8;
ASN_DEBUG("For NativeEnumerated %s,offset= %lu Padding bits = %d", td->name, pd->moved, padding);
ASN_DEBUG("For NativeEnumerated %s, upper bound = %lu", td->name, ct->upper_bound);
if(padding > 0)
per_get_few_bits(pd, padding);
}
if(ct && ct->range_bits >= 0) {
value = per_get_few_bits(pd, ct->range_bits);
if(value < 0) ASN__DECODE_STARVED;
if(value >= (specs->extension
? specs->extension - 1 : specs->map_count))
ASN__DECODE_FAILED;
} else {
if(!specs->extension)
ASN__DECODE_FAILED;
/*
* X.691, #10.6: normally small non-negative whole number;
*/
value = uper_get_nsnnwn(pd);
if(value < 0) ASN__DECODE_STARVED;
value += specs->extension - 1;
if(value >= specs->map_count)
ASN__DECODE_FAILED;
}
*native = specs->value2enum[value].nat_value;
ASN_DEBUG("Decoded %s = %ld", td->name, *native);
return rval;
}
asn_enc_rval_t
NativeEnumerated_encode_aper(const asn_TYPE_descriptor_t *td,
const asn_per_constraints_t *constraints,
const void *sptr, asn_per_outp_t *po) {
const asn_INTEGER_specifics_t *specs = (const asn_INTEGER_specifics_t *)td->specifics;
asn_enc_rval_t er = {0,0,0};
long native, value;
const asn_per_constraint_t *ct = NULL; // BMC
int inext = 0;
asn_INTEGER_enum_map_t key;
asn_INTEGER_enum_map_t *kf;
if(!sptr) ASN__ENCODE_FAILED;
if(!specs) ASN__ENCODE_FAILED;
if(constraints) ct = &constraints->value;
else if(td->encoding_constraints.per_constraints)
ct = &td->encoding_constraints.per_constraints->value;
else ASN__ENCODE_FAILED; /* Mandatory! */
ASN_DEBUG("Encoding %s as NativeEnumerated", td->name);
er.encoded = 0;
native = *(const long *)sptr;
if(native < 0) ASN__ENCODE_FAILED;
key.nat_value = native;
kf = bsearch(&key, specs->value2enum, specs->map_count,
sizeof(key), NativeEnumerated__compar_value2enum);
if(!kf) {
ASN_DEBUG("No element corresponds to %ld", native);
ASN__ENCODE_FAILED;
}
value = kf - specs->value2enum;
if(ct && ct->range_bits >= 0) { // BMC
int cmpWith = specs->extension
? specs->extension - 1 : specs->map_count;
if(value >= cmpWith)
inext = 1;
}
if(ct && ct->flags & APC_EXTENSIBLE) { // BMC
if(per_put_few_bits(po, inext, 1))
ASN__ENCODE_FAILED;
if(inext) ct = 0;
} else if(inext) {
ASN__ENCODE_FAILED;
}
if(ct && ct->range_bits >= 0) {
if(per_put_few_bits(po, value, ct->range_bits))
ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
}
if(!specs->extension)
ASN__ENCODE_FAILED;
/*
* X.691, #10.6: normally small non-negative whole number;
*/
ASN_DEBUG("value = %ld, ext = %d, inext = %d, res = %ld",
value, specs->extension, inext,
value - (inext ? (specs->extension - 1) : 0));
if(uper_put_nsnnwn(po, value - (inext ? (specs->extension - 1) : 0)))
ASN__ENCODE_FAILED;
ASN__ENCODED_OK(er);
}