static void
_parseControlPlaneInterface(const uint8_t *packet, size_t offset, size_t endMessage, MetisTlvSkeleton *skeleton)
{
int foundCount = 0;
const size_t tl_length = 4;
// parse to the end or until we find all 5 things (name, keyid, objecthash, scope, interest lifetime)
while (offset < endMessage && foundCount < 1) {
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_CPI:
metisTlvSkeleton_SetCPI(skeleton, offset, v_length);
foundCount++;
break;
default:
break;
}
offset += v_length;
}
}
/**
* Parses the message body
*
* 'offset' should point to the first byte of the T_INTEREST, T_CONTENTOBJECT, etc.
*
* @param [<#in#> | <#out#> | <#in,out#>] <#name#> <#description#>
*
* @return number The absolute byte offset of the next location to parse
*
* Example:
* @code
* {
* <#example#>
* }
* @endcode
*/
static size_t
_parseMessage(const uint8_t *packet, size_t offset, size_t endMessage, struct tlv_skeleton *skeleton)
{
size_t endSection = endMessage;
if (offset + sizeof(MetisTlvType) < endMessage) {
const MetisTlvType *tlv = (MetisTlvType *) (packet + offset);
const uint16_t type = htons(tlv->type);
const uint16_t v_length = htons(tlv->length);
offset += sizeof(MetisTlvType);
size_t endSubSection = offset + v_length;
// make sure we don't have container overrun
if (endSubSection <= endMessage) {
switch (type) {
case T_INTEREST:
_parseInterestV1(packet, offset, endSubSection, skeleton);
break;
case T_MANIFEST:
case T_OBJECT:
_parseObjectV1(packet, offset, endSubSection, skeleton);
break;
case T_CPI:
// There is nothing nested here, its just the value
metisTlvSkeleton_SetCPI(skeleton, offset, v_length);
break;
case T_HOPFRAG_PAYLOAD:
// There is nothing nested here, its just the value
metisTlvSkeleton_SetFragmentPayload(skeleton, offset, v_length);
break;
default:
break;
}
endSection = endSubSection;
}
}
return endSection;
}