Enum ipnet::IpNet

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pub enum IpNet {
    V4(Ipv4Net),
    V6(Ipv6Net),
}
Expand description

An IP network address, either IPv4 or IPv6.

This enum can contain either an Ipv4Net or an Ipv6Net. A From implementation is provided to convert these into an IpNet.

§Textual representation

IpNet provides a FromStr implementation for parsing network addresses represented in CIDR notation. See IETF RFC 4632 for the CIDR notation.

§Examples

use std::net::IpAddr;
use ipnet::IpNet;

let net: IpNet = "10.1.1.0/24".parse().unwrap();
assert_eq!(Ok(net.network()), "10.1.1.0".parse());

let net: IpNet = "fd00::/32".parse().unwrap();
assert_eq!(Ok(net.network()), "fd00::".parse());

Variants§

Implementations§

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impl IpNet

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pub fn new(ip: IpAddr, prefix_len: u8) -> Result<IpNet, PrefixLenError>

Creates a new IP network address from an IpAddr and prefix length.

§Examples
use std::net::Ipv6Addr;
use ipnet::{IpNet, PrefixLenError};

let net = IpNet::new(Ipv6Addr::LOCALHOST.into(), 48);
assert!(net.is_ok());
 
let bad_prefix_len = IpNet::new(Ipv6Addr::LOCALHOST.into(), 129);
assert_eq!(bad_prefix_len, Err(PrefixLenError));
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pub const fn new_assert(ip: IpAddr, prefix_len: u8) -> IpNet

Creates a new IP network address from an IpAddr and prefix length. If called from a const context it will verify prefix length at compile time. Otherwise it will panic at runtime if prefix length is incorrect for a given IpAddr type.

§Examples
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
use ipnet::{IpNet};

// This code is verified at compile time:
const NET: IpNet = IpNet::new_assert(IpAddr::V4(Ipv4Addr::new(10, 1, 1, 0)), 24);
assert_eq!(NET.prefix_len(), 24);

// This code is verified at runtime:
let net = IpNet::new_assert(Ipv6Addr::LOCALHOST.into(), 24);
assert_eq!(net.prefix_len(), 24);

// This code does not compile:
// const BAD_PREFIX_LEN: IpNet = IpNet::new_assert(IpAddr::V4(Ipv4Addr::new(10, 1, 1, 0)), 33);

// This code panics at runtime:
// let bad_prefix_len = IpNet::new_assert(Ipv6Addr::LOCALHOST.into(), 129);
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pub fn with_netmask( ip: IpAddr, netmask: IpAddr, ) -> Result<IpNet, PrefixLenError>

Creates a new IP network address from an IpAddr and netmask.

§Examples
use std::net::Ipv6Addr;
use ipnet::{IpNet, PrefixLenError};

let net = IpNet::with_netmask(Ipv6Addr::LOCALHOST.into(), Ipv6Addr::from(0xffff_ffff_ffff_0000_0000_0000_0000_0000).into());
assert!(net.is_ok());

let bad_prefix_len = IpNet::with_netmask(Ipv6Addr::LOCALHOST.into(), Ipv6Addr::from(0xffff_ffff_ffff_0000_0001_0000_0000_0000).into());
assert_eq!(bad_prefix_len, Err(PrefixLenError));
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pub fn trunc(&self) -> IpNet

Returns a copy of the network with the address truncated to the prefix length.

§Examples
assert_eq!(
    "192.168.12.34/16".parse::<IpNet>().unwrap().trunc(),
    "192.168.0.0/16".parse().unwrap()
);

assert_eq!(
    "fd00::1:2:3:4/16".parse::<IpNet>().unwrap().trunc(),
    "fd00::/16".parse().unwrap()
);
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pub fn addr(&self) -> IpAddr

Returns the address.

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pub fn prefix_len(&self) -> u8

Returns the prefix length.

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pub fn max_prefix_len(&self) -> u8

Returns the maximum valid prefix length.

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pub fn netmask(&self) -> IpAddr

Returns the network mask.

§Examples
let net: IpNet = "10.1.0.0/20".parse().unwrap();
assert_eq!(Ok(net.netmask()), "255.255.240.0".parse());

let net: IpNet = "fd00::/24".parse().unwrap();
assert_eq!(Ok(net.netmask()), "ffff:ff00::".parse());
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pub fn hostmask(&self) -> IpAddr

Returns the host mask.

§Examples
let net: IpNet = "10.1.0.0/20".parse().unwrap();
assert_eq!(Ok(net.hostmask()), "0.0.15.255".parse());

let net: IpNet = "fd00::/24".parse().unwrap();
assert_eq!(Ok(net.hostmask()), "::ff:ffff:ffff:ffff:ffff:ffff:ffff".parse());
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pub fn network(&self) -> IpAddr

Returns the network address.

§Examples
let net: IpNet = "172.16.123.123/16".parse().unwrap();
assert_eq!(Ok(net.network()), "172.16.0.0".parse());

let net: IpNet = "fd00:1234:5678::/24".parse().unwrap();
assert_eq!(Ok(net.network()), "fd00:1200::".parse());
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pub fn broadcast(&self) -> IpAddr

Returns the broadcast address.

§Examples
let net: IpNet = "172.16.0.0/22".parse().unwrap();
assert_eq!(Ok(net.broadcast()), "172.16.3.255".parse());

let net: IpNet = "fd00:1234:5678::/24".parse().unwrap();
assert_eq!(Ok(net.broadcast()), "fd00:12ff:ffff:ffff:ffff:ffff:ffff:ffff".parse());
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pub fn supernet(&self) -> Option<IpNet>

Returns the IpNet that contains this one.

§Examples
let n1: IpNet = "172.16.1.0/24".parse().unwrap();
let n2: IpNet = "172.16.0.0/23".parse().unwrap();
let n3: IpNet = "172.16.0.0/0".parse().unwrap();

assert_eq!(n1.supernet().unwrap(), n2);
assert_eq!(n3.supernet(), None);

let n1: IpNet = "fd00:ff00::/24".parse().unwrap();
let n2: IpNet = "fd00:fe00::/23".parse().unwrap();
let n3: IpNet = "fd00:fe00::/0".parse().unwrap();

assert_eq!(n1.supernet().unwrap(), n2);
assert_eq!(n3.supernet(), None);
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pub fn is_sibling(&self, other: &IpNet) -> bool

Returns true if this network and the given network are children of the same supernet.

§Examples
let n4_1: IpNet = "10.1.0.0/24".parse().unwrap();
let n4_2: IpNet = "10.1.1.0/24".parse().unwrap();
let n4_3: IpNet = "10.1.2.0/24".parse().unwrap();
let n6_1: IpNet = "fd00::/18".parse().unwrap();
let n6_2: IpNet = "fd00:4000::/18".parse().unwrap();
let n6_3: IpNet = "fd00:8000::/18".parse().unwrap();

assert!( n4_1.is_sibling(&n4_2));
assert!(!n4_2.is_sibling(&n4_3));
assert!( n6_1.is_sibling(&n6_2));
assert!(!n6_2.is_sibling(&n6_3));
assert!(!n4_1.is_sibling(&n6_2));
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pub fn hosts(&self) -> IpAddrRange

Return an Iterator over the host addresses in this network.

§Examples
let net: IpNet = "10.0.0.0/30".parse().unwrap();
assert_eq!(net.hosts().collect::<Vec<IpAddr>>(), vec![
    "10.0.0.1".parse::<IpAddr>().unwrap(),
    "10.0.0.2".parse().unwrap(),
]);

let net: IpNet = "10.0.0.0/31".parse().unwrap();
assert_eq!(net.hosts().collect::<Vec<IpAddr>>(), vec![
    "10.0.0.0".parse::<IpAddr>().unwrap(),
    "10.0.0.1".parse().unwrap(),
]);

let net: IpNet = "fd00::/126".parse().unwrap();
assert_eq!(net.hosts().collect::<Vec<IpAddr>>(), vec![
    "fd00::".parse::<IpAddr>().unwrap(),
    "fd00::1".parse().unwrap(),
    "fd00::2".parse().unwrap(),
    "fd00::3".parse().unwrap(),
]);
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pub fn subnets(&self, new_prefix_len: u8) -> Result<IpSubnets, PrefixLenError>

Returns an Iterator over the subnets of this network with the given prefix length.

§Examples
let net: IpNet = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(26).unwrap().collect::<Vec<IpNet>>(), vec![
    "10.0.0.0/26".parse::<IpNet>().unwrap(),
    "10.0.0.64/26".parse().unwrap(),
    "10.0.0.128/26".parse().unwrap(),
    "10.0.0.192/26".parse().unwrap(),
]);

let net: IpNet = "fd00::/16".parse().unwrap();
assert_eq!(net.subnets(18).unwrap().collect::<Vec<IpNet>>(), vec![
    "fd00::/18".parse::<IpNet>().unwrap(),
    "fd00:4000::/18".parse().unwrap(),
    "fd00:8000::/18".parse().unwrap(),
    "fd00:c000::/18".parse().unwrap(),
]);

let net: IpNet = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(23), Err(PrefixLenError));

let net: IpNet = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(33), Err(PrefixLenError));

let net: IpNet = "fd00::/16".parse().unwrap();
assert_eq!(net.subnets(15), Err(PrefixLenError));

let net: IpNet = "fd00::/16".parse().unwrap();
assert_eq!(net.subnets(129), Err(PrefixLenError));
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pub fn contains<T>(&self, other: T) -> bool
where Self: Contains<T>,

Test if a network address contains either another network address or an IP address.

§Examples
let net4: IpNet = "192.168.0.0/24".parse().unwrap();
let net4_yes: IpNet = "192.168.0.0/25".parse().unwrap();
let net4_no: IpNet = "192.168.0.0/23".parse().unwrap();
let ip4_yes: IpAddr = "192.168.0.1".parse().unwrap();
let ip4_no: IpAddr = "192.168.1.0".parse().unwrap();

assert!(net4.contains(&net4));
assert!(net4.contains(&net4_yes));
assert!(!net4.contains(&net4_no));
assert!(net4.contains(&ip4_yes));
assert!(!net4.contains(&ip4_no));


let net6: IpNet = "fd00::/16".parse().unwrap();
let net6_yes: IpNet = "fd00::/17".parse().unwrap();
let net6_no: IpNet = "fd00::/15".parse().unwrap();
let ip6_yes: IpAddr = "fd00::1".parse().unwrap();
let ip6_no: IpAddr = "fd01::".parse().unwrap();

assert!(net6.contains(&net6));
assert!(net6.contains(&net6_yes));
assert!(!net6.contains(&net6_no));
assert!(net6.contains(&ip6_yes));
assert!(!net6.contains(&ip6_no));

assert!(!net4.contains(&net6));
assert!(!net6.contains(&net4));
assert!(!net4.contains(&ip6_no));
assert!(!net6.contains(&ip4_no));
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pub fn aggregate(networks: &Vec<IpNet>) -> Vec<IpNet>

Aggregate a Vec of IpNets and return the result as a new Vec.

§Examples
let nets = vec![
    "10.0.0.0/24".parse::<IpNet>().unwrap(),
    "10.0.1.0/24".parse().unwrap(),
    "10.0.2.0/24".parse().unwrap(),
    "fd00::/18".parse().unwrap(),
    "fd00:4000::/18".parse().unwrap(),
    "fd00:8000::/18".parse().unwrap(),
];

assert_eq!(IpNet::aggregate(&nets), vec![
    "10.0.0.0/23".parse::<IpNet>().unwrap(),
    "10.0.2.0/24".parse().unwrap(),
    "fd00::/17".parse().unwrap(),
    "fd00:8000::/18".parse().unwrap(),
]);

Trait Implementations§

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impl Clone for IpNet

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fn clone(&self) -> IpNet

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 IpNet

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

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

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for IpNet

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

Formats the value using the given formatter. Read more
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impl From<IpAddr> for IpNet

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fn from(addr: IpAddr) -> IpNet

Converts to this type from the input type.
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impl From<Ipv4Net> for IpNet

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fn from(net: Ipv4Net) -> IpNet

Converts to this type from the input type.
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impl From<Ipv6Net> for IpNet

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fn from(net: Ipv6Net) -> IpNet

Converts to this type from the input type.
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impl FromStr for IpNet

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type Err = AddrParseError

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<IpNet, AddrParseError>

Parses a string s to return a value of this type. Read more
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impl Hash for IpNet

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for IpNet

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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

Compares and returns the maximum of two values. Read more
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for IpNet

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for IpNet

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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impl Eq for IpNet

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impl StructuralPartialEq for IpNet

Auto Trait Implementations§

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impl Freeze for IpNet

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impl RefUnwindSafe for IpNet

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impl Send for IpNet

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impl Sync for IpNet

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impl Unpin for IpNet

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impl UnwindSafe for IpNet

Blanket Implementations§

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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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impl<T> Borrow<T> for T
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> CloneToUninit for T
where T: Copy,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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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.