Files
MicrOBU/obu-firmware/external/vanetza-idf/vanetza/asn1/support/NULL_ber.c
T
Ashin Walpola d107534eb2 Keep vanetza-idf in obu-firmware, so a plain clone builds the firmware
obu-firmware builds against the vanetza-idf C-ITS library, which until now
came from the colleague's microbu-esp32c5 tree beside the repository and was
not tracked here, so a clone of this repository could not build the firmware
it ships. The library alone is now part of obu-firmware, as
obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit
cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from
there by default; -DVANETZA_IDF_DIR still points the build elsewhere.

The rest of the colleague's tree (their own VAM firmware, PKI tooling,
station-link Python tools, the V2X2MAP bridge) stays out of this repository
and gitignored; nothing is pushed to their repository. NOTES.md, docs/06,
TODO.md and the pcap verifier's usage line point at the new location.
2026-09-24 10:56:05 +02:00

64 lines
1.6 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 "NULL.h"
/*
* Decode NULL type.
*/
asn_dec_rval_t
NULL_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
const asn_TYPE_descriptor_t *td, void **bool_value,
const void *buf_ptr, size_t size, int tag_mode) {
NULL_t *st = (NULL_t *)*bool_value;
asn_dec_rval_t rval;
ber_tlv_len_t length;
if(st == NULL) {
st = (NULL_t *)(*bool_value = CALLOC(1, sizeof(*st)));
if(st == NULL) {
rval.code = RC_FAIL;
rval.consumed = 0;
return rval;
}
}
ASN_DEBUG("Decoding %s as NULL (tm=%d)", td->name, tag_mode);
/*
* Check tags.
*/
rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size, tag_mode, 0,
&length, 0);
if(rval.code != RC_OK) {
return rval;
}
// X.690-201508, #8.8.2, length shall be zero.
if(length != 0) {
ASN_DEBUG("Decoding %s as NULL failed: too much data", td->name);
rval.code = RC_FAIL;
rval.consumed = 0;
return rval;
}
return rval;
}
asn_enc_rval_t
NULL_encode_der(const asn_TYPE_descriptor_t *td, const void *ptr, int tag_mode,
ber_tlv_tag_t tag, asn_app_consume_bytes_f *cb, void *app_key) {
asn_enc_rval_t erval = {0,0,0};
erval.encoded = der_write_tags(td, 0, tag_mode, 0, tag, cb, app_key);
if(erval.encoded == -1) {
erval.failed_type = td;
erval.structure_ptr = ptr;
}
ASN__ENCODED_OK(erval);
}