562 lines
18 KiB
C
562 lines
18 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
|
||
|
|
* All rights reserved.
|
||
|
|
* Redistribution and modifications are permitted subject to BSD license.
|
||
|
|
*/
|
||
|
|
#ifndef ASN_DISABLE_OER_SUPPORT
|
||
|
|
|
||
|
|
#include <asn_internal.h>
|
||
|
|
#include <constr_SEQUENCE.h>
|
||
|
|
#include <OPEN_TYPE.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This macro "eats" the part of the buffer which is definitely "consumed",
|
||
|
|
* i.e. was correctly converted into local representation or rightfully skipped.
|
||
|
|
*/
|
||
|
|
#undef ADVANCE
|
||
|
|
#define ADVANCE(num_bytes) \
|
||
|
|
do { \
|
||
|
|
size_t num = num_bytes; \
|
||
|
|
ptr = ((const char *)ptr) + num; \
|
||
|
|
size -= num; \
|
||
|
|
consumed_myself += num; \
|
||
|
|
} while(0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Switch to the next phase of parsing.
|
||
|
|
*/
|
||
|
|
#undef NEXT_PHASE
|
||
|
|
#undef PHASE_OUT
|
||
|
|
#define NEXT_PHASE(ctx) \
|
||
|
|
do { \
|
||
|
|
ctx->phase++; \
|
||
|
|
ctx->step = 0; \
|
||
|
|
} while(0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check whether we are inside the extensions group.
|
||
|
|
*/
|
||
|
|
#define IN_EXTENSION_GROUP(specs, memb_idx) \
|
||
|
|
((specs)->first_extension >= 0 \
|
||
|
|
&& (unsigned)(specs)->first_extension <= (memb_idx))
|
||
|
|
|
||
|
|
#define IN_ROOT_GROUP_PRED(edx) \
|
||
|
|
edx < (specs->first_extension < 0 ? td->elements_count \
|
||
|
|
: (size_t)specs->first_extension)
|
||
|
|
|
||
|
|
#define FOR_IN_ROOT_GROUP(edx) for(edx = 0; IN_ROOT_GROUP_PRED(edx); edx++)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return a standardized complex structure.
|
||
|
|
*/
|
||
|
|
#undef RETURN
|
||
|
|
#define RETURN(_code) do { \
|
||
|
|
rval.code = _code; \
|
||
|
|
rval.consumed = consumed_myself;\
|
||
|
|
return rval; \
|
||
|
|
} while(0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return pointer to a member.
|
||
|
|
*/
|
||
|
|
static void **
|
||
|
|
element_ptrptr(void *struct_ptr, asn_TYPE_member_t *elm, void **tmp_save_ptr) {
|
||
|
|
if(elm->flags & ATF_POINTER) {
|
||
|
|
/* Member is a pointer to another structure */
|
||
|
|
return (void **)((char *)struct_ptr + elm->memb_offset);
|
||
|
|
} else {
|
||
|
|
assert(tmp_save_ptr);
|
||
|
|
*tmp_save_ptr = (void *)((char *)struct_ptr + elm->memb_offset);
|
||
|
|
return tmp_save_ptr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static const void *
|
||
|
|
element_ptr(const void *struct_ptr, const asn_TYPE_member_t *elm) {
|
||
|
|
if(elm->flags & ATF_POINTER) {
|
||
|
|
/* Member is a pointer to another structure */
|
||
|
|
return *(const void *const *)((const char *)struct_ptr
|
||
|
|
+ elm->memb_offset);
|
||
|
|
} else {
|
||
|
|
return (const void *)((const char *)struct_ptr + elm->memb_offset);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
asn_dec_rval_t
|
||
|
|
SEQUENCE_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
|
||
|
|
const asn_TYPE_descriptor_t *td,
|
||
|
|
const asn_oer_constraints_t *constraints, void **struct_ptr,
|
||
|
|
const void *ptr, size_t size) {
|
||
|
|
const asn_SEQUENCE_specifics_t *specs =
|
||
|
|
(const asn_SEQUENCE_specifics_t *)td->specifics;
|
||
|
|
asn_dec_rval_t rval = {RC_OK, 0};
|
||
|
|
void *st = *struct_ptr; /* Target structure */
|
||
|
|
asn_struct_ctx_t *ctx; /* Decoder context */
|
||
|
|
size_t consumed_myself = 0; /* Consumed bytes from ptr. */
|
||
|
|
|
||
|
|
(void)constraints;
|
||
|
|
|
||
|
|
if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
|
||
|
|
ASN__DECODE_FAILED;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Create the target structure if it is not present already.
|
||
|
|
*/
|
||
|
|
if(st == 0) {
|
||
|
|
st = *struct_ptr = CALLOC(1, specs->struct_size);
|
||
|
|
if(st == 0) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Restore parsing context.
|
||
|
|
*/
|
||
|
|
ctx = (asn_struct_ctx_t *)((char *)st + specs->ctx_offset);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Start to parse where left previously.
|
||
|
|
*/
|
||
|
|
switch(ctx->phase) {
|
||
|
|
case 0: {
|
||
|
|
/*
|
||
|
|
* Fetch preamble.
|
||
|
|
*/
|
||
|
|
asn_bit_data_t *preamble;
|
||
|
|
int has_extensions_bit = (specs->first_extension >= 0);
|
||
|
|
size_t preamble_bits = (has_extensions_bit + specs->roms_count);
|
||
|
|
size_t preamble_bytes = ((7 + preamble_bits) >> 3);
|
||
|
|
|
||
|
|
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 0", td->name);
|
||
|
|
|
||
|
|
ASN_DEBUG(
|
||
|
|
"Expecting preamble bits %" ASN_PRI_SIZE " for %s (including %d extension bits)",
|
||
|
|
preamble_bits, td->name, has_extensions_bit);
|
||
|
|
|
||
|
|
if(preamble_bytes > size) {
|
||
|
|
ASN__DECODE_STARVED;
|
||
|
|
}
|
||
|
|
|
||
|
|
preamble = asn_bit_data_new_contiguous(ptr, preamble_bits);
|
||
|
|
if(!preamble) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
preamble->nboff = has_extensions_bit;
|
||
|
|
ctx->ptr = preamble;
|
||
|
|
ADVANCE(preamble_bytes);
|
||
|
|
}
|
||
|
|
NEXT_PHASE(ctx);
|
||
|
|
/* FALL THROUGH */
|
||
|
|
case 1: {
|
||
|
|
/* Decode components of the extension root */
|
||
|
|
asn_bit_data_t *preamble = ctx->ptr;
|
||
|
|
size_t edx;
|
||
|
|
|
||
|
|
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 1 (Root)", td->name);
|
||
|
|
|
||
|
|
assert(preamble);
|
||
|
|
|
||
|
|
for(edx = (ctx->step >> 1); IN_ROOT_GROUP_PRED(edx);
|
||
|
|
edx++, ctx->step = (ctx->step & ~1) + 2) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
|
||
|
|
ASN_DEBUG("Decoding %s->%s", td->name, elm->name);
|
||
|
|
|
||
|
|
assert(!IN_EXTENSION_GROUP(specs, edx));
|
||
|
|
|
||
|
|
if(ctx->step & 1) {
|
||
|
|
goto microphase2_decode_continues;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
if(elm->optional) {
|
||
|
|
int32_t present = asn_get_few_bits(preamble, 1);
|
||
|
|
if(present < 0) {
|
||
|
|
ASN_DEBUG("Presence map ended prematurely: %d", present);
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
} else if(present == 0) {
|
||
|
|
if(elm->default_value_set) {
|
||
|
|
/* Fill-in DEFAULT */
|
||
|
|
void *tmp;
|
||
|
|
if(elm->default_value_set(
|
||
|
|
element_ptrptr(st, elm, &tmp))) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/* The member is not present. */
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
/* Present OPTIONAL or DEFAULT component. */
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* MICROPHASE 2: Invoke the member-specific decoder.
|
||
|
|
*/
|
||
|
|
ctx->step |= 1; /* Confirm entering next microphase */
|
||
|
|
microphase2_decode_continues:
|
||
|
|
if(elm->flags & ATF_OPEN_TYPE) {
|
||
|
|
rval = OPEN_TYPE_oer_get(opt_codec_ctx, td, st, elm, ptr, size);
|
||
|
|
} else {
|
||
|
|
void *save_memb_ptr; /* Temporary reference. */
|
||
|
|
void **memb_ptr2; /* Pointer to a pointer to a memmber */
|
||
|
|
|
||
|
|
memb_ptr2 = element_ptrptr(st, elm, &save_memb_ptr);
|
||
|
|
|
||
|
|
rval = elm->type->op->oer_decoder(
|
||
|
|
opt_codec_ctx, elm->type,
|
||
|
|
elm->encoding_constraints.oer_constraints, memb_ptr2, ptr,
|
||
|
|
size);
|
||
|
|
}
|
||
|
|
switch(rval.code) {
|
||
|
|
case RC_OK:
|
||
|
|
ADVANCE(rval.consumed);
|
||
|
|
break;
|
||
|
|
case RC_WMORE:
|
||
|
|
ASN_DEBUG("More bytes needed at element %s \"%s\"", td->name,
|
||
|
|
elm->name);
|
||
|
|
ADVANCE(rval.consumed);
|
||
|
|
RETURN(RC_WMORE);
|
||
|
|
case RC_FAIL:
|
||
|
|
ASN_DEBUG("Decoding failed at element %s \"%s\"", td->name,
|
||
|
|
elm->name);
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
} /* for(all root members) */
|
||
|
|
|
||
|
|
}
|
||
|
|
NEXT_PHASE(ctx);
|
||
|
|
/* FALL THROUGH */
|
||
|
|
case 2:
|
||
|
|
assert(ctx->ptr);
|
||
|
|
{
|
||
|
|
/* Cleanup preamble. */
|
||
|
|
asn_bit_data_t *preamble = ctx->ptr;
|
||
|
|
asn_bit_data_t *extadds;
|
||
|
|
int has_extensions_bit = (specs->first_extension >= 0);
|
||
|
|
int extensions_present =
|
||
|
|
has_extensions_bit
|
||
|
|
&& (preamble->buffer == NULL
|
||
|
|
|| (((const uint8_t *)preamble->buffer)[0] & 0x80));
|
||
|
|
uint8_t unused_bits;
|
||
|
|
size_t len = 0;
|
||
|
|
ssize_t len_len;
|
||
|
|
|
||
|
|
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 2", td->name);
|
||
|
|
|
||
|
|
preamble->buffer = 0; /* Will do extensions_present==1 next time. */
|
||
|
|
|
||
|
|
if(!extensions_present) {
|
||
|
|
ctx->phase = 10;
|
||
|
|
RETURN(RC_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* X.696 (08/2015) #16.1 (c), #16.4
|
||
|
|
* Read in the extension addition presence bitmap.
|
||
|
|
*/
|
||
|
|
|
||
|
|
len_len = oer_fetch_length(ptr, size, &len);
|
||
|
|
if(len_len > 0) {
|
||
|
|
ADVANCE(len_len);
|
||
|
|
} else if(len_len < 0) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
} else {
|
||
|
|
RETURN(RC_WMORE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(len == 0) {
|
||
|
|
/* 16.4.1-2 */
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
} else if(len > size) {
|
||
|
|
RETURN(RC_WMORE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Account for unused bits */
|
||
|
|
unused_bits = 0x7 & *(const uint8_t *)ptr;
|
||
|
|
ADVANCE(1);
|
||
|
|
len--;
|
||
|
|
if(unused_bits && len == 0) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Get the extensions map */
|
||
|
|
extadds = asn_bit_data_new_contiguous(ptr, len * 8 - unused_bits);
|
||
|
|
if(!extadds) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
FREEMEM(preamble);
|
||
|
|
ctx->ptr = extadds;
|
||
|
|
ADVANCE(len);
|
||
|
|
}
|
||
|
|
NEXT_PHASE(ctx);
|
||
|
|
ctx->step =
|
||
|
|
(specs->first_extension < 0 ? td->elements_count
|
||
|
|
: (size_t)specs->first_extension);
|
||
|
|
/* Fall through */
|
||
|
|
case 3:
|
||
|
|
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 3 (Extensions)", td->name);
|
||
|
|
for(; ctx->step < (signed)td->elements_count; ctx->step++) {
|
||
|
|
asn_bit_data_t *extadds = ctx->ptr;
|
||
|
|
size_t edx = ctx->step;
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
void *tmp_memb_ptr;
|
||
|
|
void **memb_ptr2 = element_ptrptr(st, elm, &tmp_memb_ptr);
|
||
|
|
|
||
|
|
switch(asn_get_few_bits(extadds, 1)) {
|
||
|
|
case -1:
|
||
|
|
/*
|
||
|
|
* Not every one of our extensions is known to the remote side.
|
||
|
|
* Continue filling in their defaults though.
|
||
|
|
*/
|
||
|
|
/* Fall through */
|
||
|
|
case 0:
|
||
|
|
/* Fill-in DEFAULT */
|
||
|
|
if(elm->default_value_set
|
||
|
|
&& elm->default_value_set(memb_ptr2)) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
case 1: {
|
||
|
|
/* Read OER open type */
|
||
|
|
ssize_t ot_size =
|
||
|
|
oer_open_type_get(opt_codec_ctx, elm->type,
|
||
|
|
elm->encoding_constraints.oer_constraints,
|
||
|
|
memb_ptr2, ptr, size);
|
||
|
|
assert(ot_size <= (ssize_t)size);
|
||
|
|
if(ot_size > 0) {
|
||
|
|
ADVANCE(ot_size);
|
||
|
|
} else if(ot_size < 0) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
} else {
|
||
|
|
/* Roll back open type parsing */
|
||
|
|
asn_get_undo(extadds, 1);
|
||
|
|
RETURN(RC_WMORE);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
NEXT_PHASE(ctx);
|
||
|
|
/* Fall through */
|
||
|
|
case 4:
|
||
|
|
ASN_DEBUG("OER SEQUENCE %s Decoding PHASE 4", td->name);
|
||
|
|
/* Read in the rest of Open Types while ignoring them */
|
||
|
|
for(;;) {
|
||
|
|
asn_bit_data_t *extadds = ctx->ptr;
|
||
|
|
switch(asn_get_few_bits(extadds, 1)) {
|
||
|
|
case 0:
|
||
|
|
continue;
|
||
|
|
case 1: {
|
||
|
|
ssize_t skipped = oer_open_type_skip(ptr, size);
|
||
|
|
if(skipped > 0) {
|
||
|
|
ADVANCE(skipped);
|
||
|
|
} else if(skipped < 0) {
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
} else {
|
||
|
|
asn_get_undo(extadds, 1);
|
||
|
|
RETURN(RC_WMORE);
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
case -1:
|
||
|
|
/* No more Open Type encoded components */
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
RETURN(RC_FAIL);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
RETURN(RC_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Encode as Canonical OER.
|
||
|
|
*/
|
||
|
|
asn_enc_rval_t
|
||
|
|
SEQUENCE_encode_oer(const asn_TYPE_descriptor_t *td,
|
||
|
|
const asn_oer_constraints_t *constraints, const void *sptr,
|
||
|
|
asn_app_consume_bytes_f *cb, void *app_key) {
|
||
|
|
const asn_SEQUENCE_specifics_t *specs = (const asn_SEQUENCE_specifics_t *)td->specifics;
|
||
|
|
size_t computed_size = 0;
|
||
|
|
int has_extensions_bit = (specs->first_extension >= 0);
|
||
|
|
size_t preamble_bits = (has_extensions_bit + specs->roms_count);
|
||
|
|
uint32_t has_extensions = 0;
|
||
|
|
size_t edx;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
(void)constraints;
|
||
|
|
|
||
|
|
if(preamble_bits) {
|
||
|
|
asn_bit_outp_t preamble;
|
||
|
|
|
||
|
|
memset(&preamble, 0, sizeof(preamble));
|
||
|
|
preamble.output = cb;
|
||
|
|
preamble.op_key = app_key;
|
||
|
|
|
||
|
|
if(has_extensions_bit) {
|
||
|
|
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
const void *memb_ptr = element_ptr(sptr, elm);
|
||
|
|
if(memb_ptr) {
|
||
|
|
if(elm->default_value_cmp
|
||
|
|
&& elm->default_value_cmp(memb_ptr) == 0) {
|
||
|
|
/* Do not encode default values in extensions */
|
||
|
|
} else {
|
||
|
|
has_extensions = 1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ret = asn_put_few_bits(&preamble, has_extensions, 1);
|
||
|
|
assert(ret == 0);
|
||
|
|
if(ret < 0) {
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Encode optional components bitmap.
|
||
|
|
*/
|
||
|
|
if(specs->roms_count) {
|
||
|
|
FOR_IN_ROOT_GROUP(edx) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
|
||
|
|
if(IN_EXTENSION_GROUP(specs, edx)) break;
|
||
|
|
|
||
|
|
if(elm->optional) {
|
||
|
|
const void *memb_ptr = element_ptr(sptr, elm);
|
||
|
|
uint32_t has_component = memb_ptr != NULL;
|
||
|
|
if(has_component && elm->default_value_cmp
|
||
|
|
&& elm->default_value_cmp(memb_ptr) == 0) {
|
||
|
|
has_component = 0;
|
||
|
|
}
|
||
|
|
ret = asn_put_few_bits(&preamble, has_component, 1);
|
||
|
|
if(ret < 0) {
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
asn_put_aligned_flush(&preamble);
|
||
|
|
computed_size += preamble.flushed_bytes;
|
||
|
|
} /* if(preamble_bits) */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Put root components and extensions root.
|
||
|
|
*/
|
||
|
|
for(edx = 0; edx < td->elements_count; edx++) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
asn_enc_rval_t er = {0,0,0};
|
||
|
|
const void *memb_ptr;
|
||
|
|
|
||
|
|
if(IN_EXTENSION_GROUP(specs, edx)) break;
|
||
|
|
|
||
|
|
memb_ptr = element_ptr(sptr, elm);
|
||
|
|
if(memb_ptr) {
|
||
|
|
if(elm->default_value_cmp
|
||
|
|
&& elm->default_value_cmp(memb_ptr) == 0) {
|
||
|
|
/* Skip default values in encoding */
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if(elm->optional) continue;
|
||
|
|
/* Mandatory element is missing */
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
if(!elm->type->op->oer_encoder) {
|
||
|
|
ASN_DEBUG("OER encoder is not defined for type %s", elm->type->name);
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
er = elm->type->op->oer_encoder(
|
||
|
|
elm->type, elm->encoding_constraints.oer_constraints, memb_ptr, cb,
|
||
|
|
app_key);
|
||
|
|
if(er.encoded == -1) {
|
||
|
|
ASN_DEBUG("... while encoding %s member \"%s\"\n", td->name,
|
||
|
|
elm->name);
|
||
|
|
return er;
|
||
|
|
}
|
||
|
|
computed_size += er.encoded;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Before encode extensions, encode extensions additions presense bitmap
|
||
|
|
# X.696 (08/2015) #16.4.
|
||
|
|
*/
|
||
|
|
if(has_extensions) {
|
||
|
|
asn_bit_outp_t extadds;
|
||
|
|
|
||
|
|
/* Special case allowing us to use exactly one byte for #8.6 */
|
||
|
|
size_t aoms_length_bits = specs->aoms_count;
|
||
|
|
size_t aoms_length_bytes = (7 + aoms_length_bits) >> 3;
|
||
|
|
uint8_t unused_bits = 0x07 & (8 - (aoms_length_bits & 0x07));
|
||
|
|
|
||
|
|
assert(1 + aoms_length_bytes <= 127);
|
||
|
|
|
||
|
|
memset(&extadds, 0, sizeof(extadds));
|
||
|
|
extadds.output = cb;
|
||
|
|
extadds.op_key = app_key;
|
||
|
|
|
||
|
|
/* #8.6 length determinant */
|
||
|
|
ret = asn_put_few_bits(&extadds, (1 + aoms_length_bytes), 8);
|
||
|
|
if(ret < 0) ASN__ENCODE_FAILED;
|
||
|
|
|
||
|
|
/* Number of unused bytes, #16.4.2 */
|
||
|
|
ret = asn_put_few_bits(&extadds, unused_bits, 8);
|
||
|
|
if(ret < 0) ASN__ENCODE_FAILED;
|
||
|
|
|
||
|
|
/* Encode presence bitmap #16.4.3 */
|
||
|
|
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
const void *memb_ptr = element_ptr(sptr, elm);
|
||
|
|
if(memb_ptr && elm->default_value_cmp
|
||
|
|
&& elm->default_value_cmp(memb_ptr) == 0) {
|
||
|
|
memb_ptr = 0; /* Do not encode default value. */
|
||
|
|
}
|
||
|
|
ret |= asn_put_few_bits(&extadds, memb_ptr ? 1 : 0, 1);
|
||
|
|
}
|
||
|
|
if(ret < 0) ASN__ENCODE_FAILED;
|
||
|
|
|
||
|
|
asn_put_aligned_flush(&extadds);
|
||
|
|
computed_size += extadds.flushed_bytes;
|
||
|
|
|
||
|
|
/* Now, encode extensions */
|
||
|
|
for(edx = specs->first_extension; edx < td->elements_count; edx++) {
|
||
|
|
asn_TYPE_member_t *elm = &td->elements[edx];
|
||
|
|
const void *memb_ptr = element_ptr(sptr, elm);
|
||
|
|
|
||
|
|
if(memb_ptr) {
|
||
|
|
if(elm->default_value_cmp
|
||
|
|
&& elm->default_value_cmp(memb_ptr) == 0) {
|
||
|
|
/* Do not encode default value. */
|
||
|
|
} else {
|
||
|
|
ssize_t wrote = oer_open_type_put(
|
||
|
|
elm->type, elm->encoding_constraints.oer_constraints,
|
||
|
|
memb_ptr, cb, app_key);
|
||
|
|
if(wrote == -1) {
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
computed_size += wrote;
|
||
|
|
}
|
||
|
|
} else if(!elm->optional) {
|
||
|
|
ASN__ENCODE_FAILED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} /* if(has_extensions) */
|
||
|
|
|
||
|
|
|
||
|
|
{
|
||
|
|
asn_enc_rval_t er = {0, 0, 0};
|
||
|
|
er.encoded = computed_size;
|
||
|
|
ASN__ENCODED_OK(er);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* ASN_DISABLE_OER_SUPPORT */
|