Protocol type

Protocol type definitions and helper functions.

The protocol types are used with the GNRC communication interface, the Network interface API, the Network protocol registry, and the Packet to identify network protocols throughout the network stack.

enum gnrc_nettype_t
GNRC_NETTYPE_IOVEC = -2
Not so much protocol but data type that is passed to network devices using the netdev interface.
GNRC_NETTYPE_NETIF = -1

Protocol is as defined in gnrc_netif_hdr_t.

Not usable with Network protocol registry

GNRC_NETTYPE_UNDEF = 0
Protocol is undefined.
GNRC_NETTYPE_SIXLOWPAN
Protocol is 6LoWPAN.
GNRC_NETTYPE_IPV6
Protocol is IPv6.
GNRC_NETTYPE_ICMPV6
Protocol is ICMPv6.
GNRC_NETTYPE_UDP
Protocol is UDP.
GNRC_NETTYPE_TEST
GNRC_NETTYPE_NUMOF
maximum number of available protocols
nettype.h::gnrc_nettype_t gnrc_nettype_from_ethertype(uint16_t type)

Translates an Ether Type number to Protocol type.

See also

IANA, ETHER TYPES

Parameters

type:An Ether Type number

Return values

  • The corresponding Protocol type to type.
  • nettype.h::gnrc_nettype_t::GNRC_NETTYPE_UNDEF if type not translatable.
uint16_t gnrc_nettype_to_ethertype(nettype.h::gnrc_nettype_t type)

Translates Protocol type to an Ether Type number.

See also

IANA, ETHER TYPES

Parameters

type:A protocol type

Return values

nettype.h::gnrc_nettype_t gnrc_nettype_from_protnum(uint8_t num)

Translates a Protocol Number to Protocol type.

See also

IANA, Assigned Internet Protocol Numbers

Parameters

num:A Protocol Number

Return values

  • The corresponding Protocol type to num.
  • nettype.h::gnrc_nettype_t::GNRC_NETTYPE_UNDEF if num not translatable.
uint8_t gnrc_nettype_to_protnum(nettype.h::gnrc_nettype_t type)

Translates Protocol type to a Protocol Number.

See also

IANA, Assigned Internet Protocol Numbers

Parameters

type:A protocol type

Return values