Struct riot_sys::ipv6_hdr_t

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#[repr(C, packed(1))]
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:

  • ipv6_hdr_set_version()
  • ipv6_hdr_get_version()
  • ipv6_hdr_is()
  • ipv6_hdr_set_tc()
  • ipv6_hdr_set_tc_ecn()
  • ipv6_hdr_set_tc_dscp()
  • ipv6_hdr_get_tc()
  • ipv6_hdr_get_tc_ecn()
  • ipv6_hdr_get_tc_dscp()
  • ipv6_hdr_set_fl()
  • ipv6_hdr_get_fl()
§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.

Trait Implementations§

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impl Clone for ipv6_hdr_t

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fn clone(&self) -> ipv6_hdr_t

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ipv6_hdr_t

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for ipv6_hdr_t

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Copy for ipv6_hdr_t

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.