Ashin Walpola
d107534eb2
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.
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
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* Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
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* All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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#include "asn_internal.h"
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#include "BOOLEAN.h"
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/*
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* Decode BOOLEAN type.
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*/
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asn_dec_rval_t
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BOOLEAN_decode_ber(const asn_codec_ctx_t *opt_codec_ctx,
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const asn_TYPE_descriptor_t *td, void **bool_value,
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const void *buf_ptr, size_t size, int tag_mode) {
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BOOLEAN_t *st = (BOOLEAN_t *)*bool_value;
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asn_dec_rval_t rval;
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ber_tlv_len_t length;
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ber_tlv_len_t lidx;
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if(st == NULL) {
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st = (BOOLEAN_t *)(*bool_value = CALLOC(1, sizeof(*st)));
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if(st == NULL) {
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rval.code = RC_FAIL;
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rval.consumed = 0;
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return rval;
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}
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}
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ASN_DEBUG("Decoding %s as BOOLEAN (tm=%d)",
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td->name, tag_mode);
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/*
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* Check tags.
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*/
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rval = ber_check_tags(opt_codec_ctx, td, 0, buf_ptr, size,
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tag_mode, 0, &length, 0);
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if(rval.code != RC_OK)
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return rval;
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ASN_DEBUG("Boolean length is %d bytes", (int)length);
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buf_ptr = ((const char *)buf_ptr) + rval.consumed;
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size -= rval.consumed;
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if(length > (ber_tlv_len_t)size) {
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rval.code = RC_WMORE;
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rval.consumed = 0;
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return rval;
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}
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/*
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* Compute boolean value.
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*/
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for(*st = 0, lidx = 0;
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(lidx < length) && *st == 0; lidx++) {
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/*
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* Very simple approach: read bytes until the end or
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* value is already TRUE.
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* BOOLEAN is not supposed to contain meaningful data anyway.
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*/
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*st |= ((const uint8_t *)buf_ptr)[lidx];
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}
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rval.code = RC_OK;
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rval.consumed += length;
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ASN_DEBUG("Took %ld/%ld bytes to encode %s, value=%d",
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(long)rval.consumed, (long)length,
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td->name, *st);
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return rval;
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}
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asn_enc_rval_t
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BOOLEAN_encode_der(const asn_TYPE_descriptor_t *td, const void *sptr,
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int tag_mode, ber_tlv_tag_t tag, asn_app_consume_bytes_f *cb,
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void *app_key) {
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asn_enc_rval_t erval = {0,0,0};
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const BOOLEAN_t *st = (const BOOLEAN_t *)sptr;
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erval.encoded = der_write_tags(td, 1, tag_mode, 0, tag, cb, app_key);
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if(erval.encoded == -1) {
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erval.failed_type = td;
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erval.structure_ptr = sptr;
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return erval;
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}
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if(cb) {
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uint8_t bool_value;
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bool_value = *st ? 0xff : 0; /* 0xff mandated by DER */
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if(cb(&bool_value, 1, app_key) < 0) {
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erval.encoded = -1;
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erval.failed_type = td;
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erval.structure_ptr = sptr;
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return erval;
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}
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}
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erval.encoded += 1;
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ASN__ENCODED_OK(erval);
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}
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