Struct riot_sys::ipv6_hdr_t[][src]

#[repr(C, packed)]
pub struct ipv6_hdr_t { pub v_tc_fl: network_uint32_t, pub len: network_uint16_t, pub nh: u8, pub hl: u8, pub src: ipv6_addr_t, pub dst: ipv6_addr_t, }
Expand description

@brief Data type to represent an IPv6 packet header

@details The structure of the header is as follows:

                     1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| Traffic Class |           Flow Label                  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|         Payload Length        |  Next Header  |   Hop Limit   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                                                               +
|                                                               |
+                         Source Address                        +
|                                                               |
+                                                               +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                                                               |
+                                                               +
|                                                               |
+                      Destination Address                      +
|                                                               |
+                                                               +
|                                                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

@see RFC 8200, section 3

Fields

v_tc_fl: network_uint32_t

@brief Version, traffic class, and flow label

@details The version are the 4 most significant bits, the traffic class the 8 next bit, and the remainding 20 bits are the flow label (see above).

This module provides helper functions to set, get, and check these fields accordingly:

len: network_uint16_t

< payload length of this packet.

nh: u8

< type of next header in this packet.

hl: u8

< hop limit for this packet.

src: ipv6_addr_t

< source address of this packet.

dst: ipv6_addr_t

< destination address of this packet.

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