Ashin Walpola
0e9525162d
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 FLASHING.md says how to take a newer version of the colleague's tree (copy it over the folder, rebuild, test, commit).
117 lines
2.5 KiB
C
117 lines
2.5 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 "ANY.h"
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#include <errno.h>
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struct _callback_arg {
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uint8_t *buffer;
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size_t offset;
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size_t size;
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};
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static int ANY__consume_bytes(const void *buffer, size_t size, void *key) {
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struct _callback_arg *arg = (struct _callback_arg *)key;
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if((arg->offset + size) >= arg->size) {
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size_t nsize = (arg->size ? arg->size << 2 : 16) + size;
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void *p = REALLOC(arg->buffer, nsize);
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if(!p) return -1;
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arg->buffer = (uint8_t *)p;
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arg->size = nsize;
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}
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memcpy(arg->buffer + arg->offset, buffer, size);
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arg->offset += size;
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assert(arg->offset < arg->size);
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return 0;
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}
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int
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ANY_fromType(ANY_t *st, asn_TYPE_descriptor_t *td, void *sptr) {
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struct _callback_arg arg;
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asn_enc_rval_t erval = {0,0,0};
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if(!st || !td) {
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errno = EINVAL;
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return -1;
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}
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if(!sptr) {
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if(st->buf) FREEMEM(st->buf);
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st->size = 0;
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return 0;
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}
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arg.offset = arg.size = 0;
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arg.buffer = 0;
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erval = der_encode(td, sptr, ANY__consume_bytes, &arg);
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if(erval.encoded == -1) {
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if(arg.buffer) FREEMEM(arg.buffer);
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return -1;
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}
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assert((size_t)erval.encoded == arg.offset);
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if(st->buf) FREEMEM(st->buf);
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st->buf = arg.buffer;
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st->size = arg.offset;
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return 0;
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}
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ANY_t *
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ANY_new_fromType(asn_TYPE_descriptor_t *td, void *sptr) {
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ANY_t tmp;
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ANY_t *st;
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if(!td || !sptr) {
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errno = EINVAL;
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return 0;
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}
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memset(&tmp, 0, sizeof(tmp));
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if(ANY_fromType(&tmp, td, sptr)) return 0;
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st = (ANY_t *)CALLOC(1, sizeof(ANY_t));
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if(st) {
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*st = tmp;
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return st;
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} else {
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FREEMEM(tmp.buf);
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return 0;
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}
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}
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int
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ANY_to_type(ANY_t *st, asn_TYPE_descriptor_t *td, void **struct_ptr) {
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asn_dec_rval_t rval;
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void *newst = 0;
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if(!st || !td || !struct_ptr) {
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errno = EINVAL;
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return -1;
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}
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if(st->buf == 0) {
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/* Nothing to convert, make it empty. */
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*struct_ptr = (void *)0;
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return 0;
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}
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rval = ber_decode(0, td, (void **)&newst, st->buf, st->size);
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if(rval.code == RC_OK) {
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*struct_ptr = newst;
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return 0;
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} else {
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/* Remove possibly partially decoded data. */
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ASN_STRUCT_FREE(*td, newst);
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return -1;
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}
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}
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