NDN design

ndn_TLV_t struct

/**
 * A NDN TLV node structre
 */
typedef struct ndn_tlv_struct{
	uint16_t type;	// Type of node
	uint8_t nb_octets; // number of octets to calculate the length of node
	unsigned long length; // Length of node
	uint32_t node_offset; // data offset of node in packet payload - count from type octet
	uint32_t data_offset;
	struct ndn_tlv_struct *next; // sibling node - same root
}ndn_tlv_t;

NDN attributes

enum 
{
	// Packet type
	NDN_IMPLICIT_SHA256_DIGEST_COMPONENT = 1,
	NDN_PACKET_TYPE,
	NDN_PACKET_LENGTH,
	// Common field
	NDN_UNKNOWN_PACKET,
	NDN_INTEREST_PACKET,
	NDN_DATA_PACKET,
	NDN_COMMON_NAME,
	NDN_NAME_COMPONENTS,
	// Interest packet
	NDN_INTEREST_SELECTORS,
	NDN_INTEREST_NONCE,
	NDN_INTEREST_LIFETIME = 12,
	// Interest/selectors
	NDN_INTEREST_MIN_SUFFIX_COMPONENT,
	NDN_INTEREST_MAX_SUFFIX_COMPONENT,
	NDN_INTEREST_PUBLISHER_PUBLICKEY_LOCATOR,
	NDN_INTEREST_EXCLUDE,
	NDN_INTEREST_CHILD_SELECTOR,
	NDN_INTEREST_MUST_BE_FRESH,
	NDN_INTEREST_ANY,
	// Data packet
	NDN_DATA_METAINFO,
	NDN_DATA_CONTENT,
	NDN_DATA_SIGNATURE_INFO,
	NDN_DATA_SIGNATURE_VALUE,
	// data/metainfo
	NDN_DATA_CONTENT_TYPE,
	NDN_DATA_FRESHNESS_PERIOD,
	NDN_DATA_FINAL_BLOCK_ID,
	// Data/signature
	NDN_DATA_SIGNATURE_TYPE,
	NDN_DATA_KEY_LOCATOR,
	NDN_DATA_KEY_DIGEST,
	NDN_ATTRIBUTES_NB,
};

Signature type value

enum signature_type
{
	DigestSha256 = 0,
	SignatureSha256WithRsa,
	SignatureSha256WithEcdsa = 3,
	SignatureHmacWithSha256,
	ReservedForFutureAssignments = 5,
	Unassigned = 200,
};

Content type

enum ndn_content_type
{
	NDN_CONTENT_TYPE_BLOB=0,
	NDN_CONTENT_TYPE_LINK,
	NDN_CONTENT_TYPE_KEY,
};