Struct embedded_nal_async::Ipv6Addr

pub struct Ipv6Addr { /* private fields */ }

An IPv6 address.

IPv6 addresses are defined as 128-bit integers in IETF RFC 4291. They are usually represented as eight 16-bit segments.

See IpAddr for a type encompassing both IPv4 and IPv6 addresses.

Textual representation

Ipv6Addr provides a FromStr implementation. There are many ways to represent an IPv6 address in text, but in general, each segments is written in hexadecimal notation, and segments are separated by :. For more information, see IETF RFC 5952.

Examples

use no_std_net::Ipv6Addr;

let localhost = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1);
assert_eq!("::1".parse(), Ok(localhost));
assert_eq!(localhost.is_loopback(), true);

Implementations

impl Ipv6Addr

pub const fn new(
    a: u16,
    b: u16,
    c: u16,
    d: u16,
    e: u16,
    f: u16,
    g: u16,
    h: u16
) -> Ipv6Addr

Creates a new IPv6 address from eight 16-bit segments.

The result will represent the IP address a:b:c:d:e:f:g:h.

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff);

pub const fn localhost() -> Ipv6Addr

Creates a new IPv6 address representing localhost: ::1.

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::localhost();
assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));

pub const fn unspecified() -> Ipv6Addr

Creates a new IPv6 address representing the unspecified address: ::

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::unspecified();
assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0));

pub const fn first_segment(&self) -> u16

Returns the first 16-bit segment that makes up this address.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0x0011, 0x2233, 0, 0, 0, 0, 0, 0).first_segment(), 0x11);

pub const fn second_segment(&self) -> u16

Returns the second 16-bit segment that makes up this address.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0x0011, 0x2233, 0, 0, 0, 0, 0, 0).second_segment(), 0x2233);

pub const fn segments(&self) -> [u16; 8]

Returns the eight 16-bit segments that make up this address.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).segments(),
           [0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff]);

pub const fn is_unspecified(&self) -> bool

Returns true for the special ‘unspecified’ address (::).

This property is defined in IETF RFC 4291.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unspecified(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0).is_unspecified(), true);

pub const fn is_loopback(&self) -> bool

Returns true if this is a loopback address (::1).

This property is defined in IETF RFC 4291.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_loopback(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_loopback(), true);

pub const fn is_global(&self) -> bool

Returns true if the address appears to be globally routable.

The following return false:

• the loopback address
• link-local, site-local, and unique local unicast addresses
• interface-, link-, realm-, admin- and site-local multicast addresses

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_global(), true);
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_global(), false);
    assert_eq!(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1).is_global(), true);
}

pub const fn is_unique_local(&self) -> bool

Returns true if this is a unique local address (fc00::/7).

This property is defined in IETF RFC 4193.

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unique_local(),
               false);
    assert_eq!(Ipv6Addr::new(0xfc02, 0, 0, 0, 0, 0, 0, 0).is_unique_local(), true);
}

pub const fn is_unicast_link_local(&self) -> bool

Returns true if the address is unicast and link-local (fe80::/10).

This property is defined in IETF RFC 4291.

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_link_local(),
               false);
    assert_eq!(Ipv6Addr::new(0xfe8a, 0, 0, 0, 0, 0, 0, 0).is_unicast_link_local(), true);
}

pub const fn is_unicast_site_local(&self) -> bool

Returns true if this is a deprecated unicast site-local address (fec0::/10).

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_site_local(),
               false);
    assert_eq!(Ipv6Addr::new(0xfec2, 0, 0, 0, 0, 0, 0, 0).is_unicast_site_local(), true);
}

pub const fn is_documentation(&self) -> bool

Returns true if this is an address reserved for documentation (2001:db8::/32).

This property is defined in IETF RFC 3849.

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_documentation(),
               false);
    assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_documentation(), true);
}

pub const fn is_unicast_global(&self) -> bool

Returns true if the address is a globally routable unicast address.

The following return false:

• the loopback address
• the link-local addresses
• the (deprecated) site-local addresses
• unique local addresses
• the unspecified address
• the address range reserved for documentation

Examples

use no_std_net::Ipv6Addr;

fn main() {
    assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast_global(), false);
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_global(),
               true);
}

pub const fn multicast_scope(&self) -> Option<Ipv6MulticastScope>

Returns the address’s multicast scope if the address is multicast.

Examples

use no_std_net::{Ipv6Addr, Ipv6MulticastScope};

fn main() {
    assert_eq!(Ipv6Addr::new(0xff0e, 0, 0, 0, 0, 0, 0, 0).multicast_scope(),
                             Some(Ipv6MulticastScope::Global));
    assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).multicast_scope(), None);
}

pub const fn is_multicast(&self) -> bool

Returns true if this is a multicast address (ff00::/8).

This property is defined by IETF RFC 4291.

Examples

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).is_multicast(), true);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_multicast(), false);

pub const fn to_ipv4(&self) -> Option<Ipv4Addr>

Converts this address to an IPv4 address. Returns None if this address is neither IPv4-compatible or IPv4-mapped.

::a.b.c.d and ::ffff:a.b.c.d become a.b.c.d

Examples

use no_std_net::{Ipv4Addr, Ipv6Addr};

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).to_ipv4(), None);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).to_ipv4(),
           Some(Ipv4Addr::new(192, 10, 2, 255)));
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4(),
           Some(Ipv4Addr::new(0, 0, 0, 1)));

pub const fn octets(&self) -> [u8; 16]

Returns the sixteen eight-bit integers the IPv6 address consists of.

use no_std_net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).octets(),
           [255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);

Trait Implementations

impl Clone for Ipv6Addr

fn clone(&self) -> Ipv6Addr

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Ipv6Addr

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

Formats the value using the given formatter.

impl Display for Ipv6Addr

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

Formats the value using the given formatter.

impl From<[u16; 8]> for Ipv6Addr

fn from(segments: [u16; 8]) -> Ipv6Addr

Creates an Ipv6Addr from an eight element 16-bit array.

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::from([
    525u16, 524u16, 523u16, 522u16,
    521u16, 520u16, 519u16, 518u16,
]);
assert_eq!(
    Ipv6Addr::new(
        0x20d, 0x20c,
        0x20b, 0x20a,
        0x209, 0x208,
        0x207, 0x206
    ),
    addr
);

impl From<[u8; 16]> for Ipv6Addr

fn from(octets: [u8; 16]) -> Ipv6Addr

Creates an Ipv6Addr from a sixteen element byte array.

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::from([
    25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8,
    17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8,
]);
assert_eq!(
    Ipv6Addr::new(
        0x1918, 0x1716,
        0x1514, 0x1312,
        0x1110, 0x0f0e,
        0x0d0c, 0x0b0a
    ),
    addr
);

impl From<Ipv6Addr> for IpAddr

fn from(ipv6: Ipv6Addr) -> IpAddr

Copies this address to a new IpAddr::V6.

Examples

use no_std_net::{IpAddr, Ipv6Addr};

let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff);

assert_eq!(
    IpAddr::V6(addr),
    IpAddr::from(addr)
);

impl From<u128> for Ipv6Addr

fn from(ip: u128) -> Ipv6Addr

Convert a host byte order u128 into an Ipv6Addr.

Examples

use no_std_net::Ipv6Addr;

let addr = Ipv6Addr::from(0x102030405060708090A0B0C0D0E0F00D_u128);
assert_eq!(
    Ipv6Addr::new(
        0x1020, 0x3040, 0x5060, 0x7080,
        0x90A0, 0xB0C0, 0xD0E0, 0xF00D,
    ),
    addr);

impl FromStr for Ipv6Addr

type Err = AddrParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Ipv6Addr, AddrParseError>

Parses a string s to return a value of this type.

impl Hash for Ipv6Addr

fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for Ipv6Addr

fn cmp(&self, other: &Ipv6Addr) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self where
    Self: PartialOrd<Self>, 

Restrict a value to a certain interval.

impl PartialEq<IpAddr> for Ipv6Addr

fn eq(&self, other: &IpAddr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Ipv6Addr> for IpAddr

fn eq(&self, other: &Ipv6Addr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Ipv6Addr> for Ipv6Addr

fn eq(&self, other: &Ipv6Addr) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Ipv6Addr) -> bool

This method tests for !=.

impl PartialOrd<IpAddr> for Ipv6Addr

fn partial_cmp(&self, other: &IpAddr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialOrd<Ipv6Addr> for IpAddr

fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialOrd<Ipv6Addr> for Ipv6Addr

fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Ipv6Addr

impl Eq for Ipv6Addr

impl StructuralEq for Ipv6Addr

impl StructuralPartialEq for Ipv6Addr