static void
_parseInterestV0(const uint8_t *packet, size_t offset, size_t endMessage, MetisTlvSkeleton *skeleton)
{
int foundCount = 0;
const size_t tl_length = sizeof(MetisTlvType);
// skip the Interest wrapper
offset += 4;
// parse to the end or until we find all 5 things (name, keyid, objecthash, scope, interest lifetime)
while (offset < endMessage && foundCount < 5) {
MetisTlvType *tlv = (MetisTlvType *) (packet + offset);
uint16_t type = htons(tlv->type);
uint16_t v_length = htons(tlv->length);
// skip past the TLV header
offset += tl_length;
switch (type) {
case T_NAME:
metisTlvSkeleton_SetName(skeleton, offset, v_length);
foundCount++;
break;
case T_KEYID:
metisTlvSkeleton_SetKeyId(skeleton, offset, v_length);
foundCount++;
break;
case T_OBJHASH:
metisTlvSkeleton_SetObjectHash(skeleton, offset, v_length);
foundCount++;
break;
case T_INTLIFE:
metisTlvSkeleton_SetInterestLifetime(skeleton, offset, v_length);
foundCount++;
break;
default:
break;
}
offset += v_length;
}
}
/**
* Parse the "value" of a T_INTEREST
*
* 'offset' should point to the first byte of the "value" of the T_INTEREST container
*
* @param [in] packet The packet buffer
* @param [in] offset The first byte to begin parsing at
* @param [in] endSection The ceiling of bytes to parse
* @param [in] skeleton The structure to fill in
*
* Example:
* @code
* {
* <#example#>
* }
* @endcode
*/
static void
_parseInterestV1(const uint8_t *packet, size_t offset, size_t endSection, struct tlv_skeleton *skeleton)
{
int foundCount = 0;
// parse to the end or until we find all 3 things (name, keyid, objecthash)
while (offset < endSection && foundCount < 3) {
const MetisTlvType *tlv = (MetisTlvType *) (packet + offset);
const uint16_t type = htons(tlv->type);
const uint16_t v_length = htons(tlv->length);
// skip past the TLV header
offset += sizeof(MetisTlvType);
size_t endSubSection = offset + v_length;
if (endSubSection <= endSection) {
switch (type) {
case T_NAME:
metisTlvSkeleton_SetName(skeleton, offset, v_length);
foundCount++;
break;
case T_KEYIDRES:
metisTlvSkeleton_SetKeyId(skeleton, offset, v_length);
foundCount++;
break;
case T_OBJHASHRES:
metisTlvSkeleton_SetObjectHash(skeleton, offset, v_length);
foundCount++;
break;
default:
break;
}
}
offset = endSubSection;
}
}