Struct ipnet::Ipv4Net

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pub struct Ipv4Net { /* private fields */ }
Expand description

An IPv4 network address.

See IpNet for a type encompassing both IPv4 and IPv6 network addresses.

Textual representation

Ipv4Net provides a FromStr implementation for parsing network addresses represented in CIDR notation. See IETF RFC 4632 for the CIDR notation.

Examples

use std::net::Ipv4Addr;
use ipnet::Ipv4Net;

let net: Ipv4Net = "10.1.1.0/24".parse().unwrap();
assert_eq!(Ok(net.network()), "10.1.1.0".parse());

Implementations§

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impl Ipv4Net

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pub const fn new( ip: Ipv4Addr, prefix_len: u8 ) -> Result<Ipv4Net, PrefixLenError>

Creates a new IPv4 network address from an Ipv4Addr and prefix length.

Examples
use std::net::Ipv4Addr;
use ipnet::{Ipv4Net, PrefixLenError};

let net = Ipv4Net::new(Ipv4Addr::new(10, 1, 1, 0), 24);
assert!(net.is_ok());

let bad_prefix_len = Ipv4Net::new(Ipv4Addr::new(10, 1, 1, 0), 33);
assert_eq!(bad_prefix_len, Err(PrefixLenError));
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pub fn with_netmask( ip: Ipv4Addr, netmask: Ipv4Addr ) -> Result<Ipv4Net, PrefixLenError>

Creates a new IPv4 network address from an Ipv4Addr and netmask.

Examples
use std::net::Ipv4Addr;
use ipnet::{Ipv4Net, PrefixLenError};

let net = Ipv4Net::with_netmask(Ipv4Addr::new(10, 1, 1, 0), Ipv4Addr::new(255, 255, 255, 0));
assert!(net.is_ok());

let bad_prefix_len = Ipv4Net::with_netmask(Ipv4Addr::new(10, 1, 1, 0), Ipv4Addr::new(255, 255, 0, 1));
assert_eq!(bad_prefix_len, Err(PrefixLenError));
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pub fn trunc(&self) -> Ipv4Net

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

Examples
assert_eq!(
    "192.168.12.34/16".parse::<Ipv4Net>().unwrap().trunc(),
    "192.168.0.0/16".parse().unwrap()
);
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pub const fn addr(&self) -> Ipv4Addr

Returns the address.

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pub const fn prefix_len(&self) -> u8

Returns the prefix length.

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pub const fn max_prefix_len(&self) -> u8

Returns the maximum valid prefix length.

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pub fn netmask(&self) -> Ipv4Addr

Returns the network mask.

Examples
let net: Ipv4Net = "10.1.0.0/20".parse().unwrap();
assert_eq!(Ok(net.netmask()), "255.255.240.0".parse());
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pub fn hostmask(&self) -> Ipv4Addr

Returns the host mask.

Examples
let net: Ipv4Net = "10.1.0.0/20".parse().unwrap();
assert_eq!(Ok(net.hostmask()), "0.0.15.255".parse());
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pub fn network(&self) -> Ipv4Addr

Returns the network address.

Examples
let net: Ipv4Net = "172.16.123.123/16".parse().unwrap();
assert_eq!(Ok(net.network()), "172.16.0.0".parse());
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pub fn broadcast(&self) -> Ipv4Addr

Returns the broadcast address.

Examples
let net: Ipv4Net = "172.16.0.0/22".parse().unwrap();
assert_eq!(Ok(net.broadcast()), "172.16.3.255".parse());
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pub fn supernet(&self) -> Option<Ipv4Net>

Returns the Ipv4Net that contains this one.

Examples
let n1: Ipv4Net = "172.16.1.0/24".parse().unwrap();
let n2: Ipv4Net = "172.16.0.0/23".parse().unwrap();
let n3: Ipv4Net = "172.16.0.0/0".parse().unwrap();

assert_eq!(n1.supernet().unwrap(), n2);
assert_eq!(n3.supernet(), None);
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pub fn is_sibling(&self, other: &Ipv4Net) -> bool

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

Examples
let n1: Ipv4Net = "10.1.0.0/24".parse().unwrap();
let n2: Ipv4Net = "10.1.1.0/24".parse().unwrap();
let n3: Ipv4Net = "10.1.2.0/24".parse().unwrap();

assert!(n1.is_sibling(&n2));
assert!(!n2.is_sibling(&n3));
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pub fn hosts(&self) -> Ipv4AddrRange

Return an Iterator over the host addresses in this network.

If the prefix length is less than 31 both the network address and broadcast address are excluded. These are only valid host addresses when the prefix length is 31.

Examples
let net: Ipv4Net = "10.0.0.0/30".parse().unwrap();
assert_eq!(net.hosts().collect::<Vec<Ipv4Addr>>(), vec![
    "10.0.0.1".parse::<Ipv4Addr>().unwrap(),
    "10.0.0.2".parse().unwrap(),
]);

let net: Ipv4Net = "10.0.0.0/31".parse().unwrap();
assert_eq!(net.hosts().collect::<Vec<Ipv4Addr>>(), vec![
    "10.0.0.0".parse::<Ipv4Addr>().unwrap(),
    "10.0.0.1".parse().unwrap(),
]);
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pub fn subnets(&self, new_prefix_len: u8) -> Result<Ipv4Subnets, PrefixLenError>

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

Examples
let net: Ipv4Net = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(26).unwrap().collect::<Vec<Ipv4Net>>(), vec![
    "10.0.0.0/26".parse::<Ipv4Net>().unwrap(),
    "10.0.0.64/26".parse().unwrap(),
    "10.0.0.128/26".parse().unwrap(),
    "10.0.0.192/26".parse().unwrap(),
]);

let net: Ipv4Net = "10.0.0.0/30".parse().unwrap();
assert_eq!(net.subnets(32).unwrap().collect::<Vec<Ipv4Net>>(), vec![
    "10.0.0.0/32".parse::<Ipv4Net>().unwrap(),
    "10.0.0.1/32".parse().unwrap(),
    "10.0.0.2/32".parse().unwrap(),
    "10.0.0.3/32".parse().unwrap(),
]);

let net: Ipv4Net = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(23), Err(PrefixLenError));

let net: Ipv4Net = "10.0.0.0/24".parse().unwrap();
assert_eq!(net.subnets(33), Err(PrefixLenError));
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pub fn contains<T>(&self, other: T) -> boolwhere Self: Contains<T>,

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

Examples
let net: Ipv4Net = "192.168.0.0/24".parse().unwrap();
let net_yes: Ipv4Net = "192.168.0.0/25".parse().unwrap();
let net_no: Ipv4Net = "192.168.0.0/23".parse().unwrap();
let ip_yes: Ipv4Addr = "192.168.0.1".parse().unwrap();
let ip_no: Ipv4Addr = "192.168.1.0".parse().unwrap();

assert!(net.contains(&net));
assert!(net.contains(&net_yes));
assert!(!net.contains(&net_no));
assert!(net.contains(&ip_yes));
assert!(!net.contains(&ip_no));
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pub fn aggregate(networks: &Vec<Ipv4Net>) -> Vec<Ipv4Net>

Aggregate a Vec of Ipv4Nets and return the result as a new Vec.

Examples
let nets = vec![
    "10.0.0.0/24".parse::<Ipv4Net>().unwrap(),
    "10.0.1.0/24".parse().unwrap(),
    "10.0.2.0/24".parse().unwrap(),
];

assert_eq!(Ipv4Net::aggregate(&nets), vec![
    "10.0.0.0/23".parse::<Ipv4Net>().unwrap(),
    "10.0.2.0/24".parse().unwrap(),
]);

Trait Implementations§

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impl Clone for Ipv4Net

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fn clone(&self) -> Ipv4Net

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 Ipv4Net

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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 Ipv4Net

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for Ipv4Net

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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<Ipv4Addr> for Ipv4Net

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fn from(addr: Ipv4Addr) -> Ipv4Net

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 FromStr for Ipv4Net

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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<Ipv4Net, AddrParseError>

Parses a string s to return a value of this type. Read more
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impl Hash for Ipv4Net

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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 Ipv4Net

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fn cmp(&self, other: &Ipv4Net) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

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

Restrict a value to a certain interval. Read more
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impl PartialEq<Ipv4Net> for Ipv4Net

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fn eq(&self, other: &Ipv4Net) -> 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<Ipv4Net> for Ipv4Net

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fn partial_cmp(&self, other: &Ipv4Net) -> 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 Ipv4Net

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impl Eq for Ipv4Net

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impl StructuralEq for Ipv4Net

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impl StructuralPartialEq for Ipv4Net

Auto Trait Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.