369 lines
10 KiB
C
369 lines
10 KiB
C
|
|
||
|
|
/*-
|
||
|
|
* 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);
|
||
|
|
}
|