Files
MicrOBU/microbu-esp32c5/external/vanetza-idf/vanetza/asn1/support/REAL_oer.c
T
Ashin Walpola 0e9525162d Keep the colleague's microbu-esp32c5 tree in this repository
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but
that tree was gitignored, so a clone of this repository could not build the
firmware it ships. It is now committed here as ordinary files in its own
folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP
bridge's signature verification (--trust) used on the bench. Nothing is
fetched from or pushed to the colleague's repository; this repository and
its remotes carry everything. The folder's own .gitignore keeps build output,
downloaded components and private key material out, as it did there; the
committed file set is identical to that repository's tracked files.

The ESP32-C5 is still flashed from obu-firmware/, which only takes
vanetza-idf from microbu-esp32c5/, so the two stay separate folders.
FLASHING.md says how to take a newer version of the colleague's tree (copy
it over the folder, rebuild, test, commit).
2026-09-23 17:46:40 +02:00

90 lines
2.5 KiB
C

/*
* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
* Redistribution and modifications are permitted subject to BSD license.
*/
#include "asn_internal.h"
#include "REAL.h"
/*
* Encode as Canonical OER
*/
asn_enc_rval_t
REAL_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 REAL_t *st = sptr;
asn_enc_rval_t er = {0,0,0};
ssize_t len_len;
if(!st || !st->buf || !td)
ASN__ENCODE_FAILED;
if(!constraints) constraints = td->encoding_constraints.oer_constraints;
if(constraints && constraints->value.width != 0) {
/* If we're constrained to a narrow float/double representation, we
* shouldn't have ended up using REAL. Expecting NativeReal. */
ASN__ENCODE_FAILED;
}
/* Encode a fake REAL */
len_len = oer_serialize_length(st->size, cb, app_key);
if(len_len < 0 || cb(st->buf, st->size, app_key) < 0) {
ASN__ENCODE_FAILED;
} else {
er.encoded = len_len + st->size;
ASN__ENCODED_OK(er);
}
}
asn_dec_rval_t
REAL_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td,
const asn_oer_constraints_t *constraints, void **sptr,
const void *ptr, size_t size) {
asn_dec_rval_t ok = {RC_OK, 0};
REAL_t *st;
uint8_t *buf;
ssize_t len_len;
size_t real_body_len;
(void)opt_codec_ctx;
if(!constraints) constraints = td->encoding_constraints.oer_constraints;
if(constraints && constraints->value.width != 0) {
/* If we're constrained to a narrow float/double representation, we
* shouldn't have ended up using REAL. Expecting NativeReal. */
ASN__DECODE_FAILED;
}
len_len = oer_fetch_length(ptr, size, &real_body_len);
if(len_len < 0) ASN__DECODE_FAILED;
if(len_len == 0) ASN__DECODE_STARVED;
ptr = (const char *)ptr + len_len;
size -= len_len;
if(real_body_len > size) ASN__DECODE_STARVED;
buf = CALLOC(1, real_body_len + 1);
if(!buf) ASN__DECODE_FAILED;
if(!(st = *sptr)) {
st = (*sptr = CALLOC(1, sizeof(REAL_t)));
if(!st) {
FREEMEM(buf);
ASN__DECODE_FAILED;
}
} else {
FREEMEM(st->buf);
}
memcpy(buf, ptr, real_body_len);
buf[real_body_len] = '\0';
st->buf = buf;
st->size = real_body_len;
ok.consumed = len_len + real_body_len;
return ok;
}