| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| #![unstable(feature = "ip", reason = "extra functionality has not been \ |
| scrutinized to the level that it should \ |
| be stable", |
| issue = "27709")] |
| |
| use cmp::Ordering; |
| use fmt; |
| use hash; |
| use mem; |
| use net::{hton, ntoh}; |
| use sys::net::netc as c; |
| use sys_common::{AsInner, FromInner}; |
| |
| /// An IP address, either an IPv4 or IPv6 address. |
| #[stable(feature = "ip_addr", since = "1.7.0")] |
| #[derive(Copy, Clone, Eq, PartialEq, Debug, Hash, PartialOrd, Ord)] |
| pub enum IpAddr { |
| /// Representation of an IPv4 address. |
| #[stable(feature = "ip_addr", since = "1.7.0")] |
| V4(#[stable(feature = "ip_addr", since = "1.7.0")] Ipv4Addr), |
| /// Representation of an IPv6 address. |
| #[stable(feature = "ip_addr", since = "1.7.0")] |
| V6(#[stable(feature = "ip_addr", since = "1.7.0")] Ipv6Addr), |
| } |
| |
| /// Representation of an IPv4 address. |
| #[derive(Copy)] |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct Ipv4Addr { |
| inner: c::in_addr, |
| } |
| |
| /// Representation of an IPv6 address. |
| #[derive(Copy)] |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct Ipv6Addr { |
| inner: c::in6_addr, |
| } |
| |
| #[allow(missing_docs)] |
| #[derive(Copy, PartialEq, Eq, Clone, Hash, Debug)] |
| pub enum Ipv6MulticastScope { |
| InterfaceLocal, |
| LinkLocal, |
| RealmLocal, |
| AdminLocal, |
| SiteLocal, |
| OrganizationLocal, |
| Global |
| } |
| |
| impl IpAddr { |
| /// Returns true for the special 'unspecified' address ([IPv4], [IPv6]). |
| /// [IPv4]: ../../std/net/struct.Ipv4Addr.html#method.is_unspecified |
| /// [IPv6]: ../../std/net/struct.Ipv6Addr.html#method.is_unspecified |
| #[stable(feature = "ip_shared", since = "1.12.0")] |
| pub fn is_unspecified(&self) -> bool { |
| match *self { |
| IpAddr::V4(ref a) => a.is_unspecified(), |
| IpAddr::V6(ref a) => a.is_unspecified(), |
| } |
| } |
| |
| /// Returns true if this is a loopback address ([IPv4], [IPv6]). |
| /// [IPv4]: ../../std/net/struct.Ipv4Addr.html#method.is_loopback |
| /// [IPv6]: ../../std/net/struct.Ipv6Addr.html#method.is_loopback |
| #[stable(feature = "ip_shared", since = "1.12.0")] |
| pub fn is_loopback(&self) -> bool { |
| match *self { |
| IpAddr::V4(ref a) => a.is_loopback(), |
| IpAddr::V6(ref a) => a.is_loopback(), |
| } |
| } |
| |
| /// Returns true if the address appears to be globally routable ([IPv4], [IPv6]). |
| /// [IPv4]: ../../std/net/struct.Ipv4Addr.html#method.is_global |
| /// [IPv6]: ../../std/net/struct.Ipv6Addr.html#method.is_global |
| pub fn is_global(&self) -> bool { |
| match *self { |
| IpAddr::V4(ref a) => a.is_global(), |
| IpAddr::V6(ref a) => a.is_global(), |
| } |
| } |
| |
| /// Returns true if this is a multicast address ([IPv4], [IPv6]). |
| /// [IPv4]: ../../std/net/struct.Ipv4Addr.html#method.is_multicast |
| /// [IPv6]: ../../std/net/struct.Ipv6Addr.html#method.is_multicast |
| #[stable(feature = "ip_shared", since = "1.12.0")] |
| pub fn is_multicast(&self) -> bool { |
| match *self { |
| IpAddr::V4(ref a) => a.is_multicast(), |
| IpAddr::V6(ref a) => a.is_multicast(), |
| } |
| } |
| |
| /// Returns true if this address is in a range designated for documentation ([IPv4], [IPv6]). |
| /// [IPv4]: ../../std/net/struct.Ipv4Addr.html#method.is_documentation |
| /// [IPv6]: ../../std/net/struct.Ipv6Addr.html#method.is_documentation |
| pub fn is_documentation(&self) -> bool { |
| match *self { |
| IpAddr::V4(ref a) => a.is_documentation(), |
| IpAddr::V6(ref a) => a.is_documentation(), |
| } |
| } |
| } |
| |
| impl Ipv4Addr { |
| /// Creates a new IPv4 address from four eight-bit octets. |
| /// |
| /// The result will represent the IP address `a`.`b`.`c`.`d`. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn new(a: u8, b: u8, c: u8, d: u8) -> Ipv4Addr { |
| Ipv4Addr { |
| inner: c::in_addr { |
| s_addr: hton(((a as u32) << 24) | |
| ((b as u32) << 16) | |
| ((c as u32) << 8) | |
| (d as u32)), |
| } |
| } |
| } |
| |
| /// Returns the four eight-bit integers that make up this address. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn octets(&self) -> [u8; 4] { |
| let bits = ntoh(self.inner.s_addr); |
| [(bits >> 24) as u8, (bits >> 16) as u8, (bits >> 8) as u8, bits as u8] |
| } |
| |
| /// Returns true for the special 'unspecified' address (0.0.0.0). |
| /// |
| /// This property is defined in _UNIX Network Programming, Second Edition_, |
| /// W. Richard Stevens, p. 891; see also [ip7] |
| /// [ip7][http://man7.org/linux/man-pages/man7/ip.7.html] |
| #[stable(feature = "ip_shared", since = "1.12.0")] |
| pub fn is_unspecified(&self) -> bool { |
| self.inner.s_addr == 0 |
| } |
| |
| /// Returns true if this is a loopback address (127.0.0.0/8). |
| /// |
| /// This property is defined by [RFC 1122]. |
| /// [RFC 1122]: https://tools.ietf.org/html/rfc1122 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_loopback(&self) -> bool { |
| self.octets()[0] == 127 |
| } |
| |
| /// Returns true if this is a private address. |
| /// |
| /// The private address ranges are defined in [RFC 1918] and include: |
| /// [RFC 1918]: https://tools.ietf.org/html/rfc1918 |
| /// |
| /// - 10.0.0.0/8 |
| /// - 172.16.0.0/12 |
| /// - 192.168.0.0/16 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_private(&self) -> bool { |
| match (self.octets()[0], self.octets()[1]) { |
| (10, _) => true, |
| (172, b) if b >= 16 && b <= 31 => true, |
| (192, 168) => true, |
| _ => false |
| } |
| } |
| |
| /// Returns true if the address is link-local (169.254.0.0/16). |
| /// |
| /// This property is defined by [RFC 3927]. |
| /// [RFC 3927]: https://tools.ietf.org/html/rfc3927 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_link_local(&self) -> bool { |
| self.octets()[0] == 169 && self.octets()[1] == 254 |
| } |
| |
| /// Returns true if the address appears to be globally routable. |
| /// See [iana-ipv4-special-registry][ipv4-sr]. |
| /// [ipv4-sr]: http://goo.gl/RaZ7lg |
| /// |
| /// The following return false: |
| /// |
| /// - private address (10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16) |
| /// - the loopback address (127.0.0.0/8) |
| /// - the link-local address (169.254.0.0/16) |
| /// - the broadcast address (255.255.255.255/32) |
| /// - test addresses used for documentation (192.0.2.0/24, 198.51.100.0/24 and 203.0.113.0/24) |
| /// - the unspecified address (0.0.0.0) |
| pub fn is_global(&self) -> bool { |
| !self.is_private() && !self.is_loopback() && !self.is_link_local() && |
| !self.is_broadcast() && !self.is_documentation() && !self.is_unspecified() |
| } |
| |
| /// Returns true if this is a multicast address (224.0.0.0/4). |
| /// |
| /// Multicast addresses have a most significant octet between 224 and 239, |
| /// and is defined by [RFC 5771]. |
| /// [RFC 5771]: https://tools.ietf.org/html/rfc5771 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_multicast(&self) -> bool { |
| self.octets()[0] >= 224 && self.octets()[0] <= 239 |
| } |
| |
| /// Returns true if this is a broadcast address (255.255.255.255). |
| /// |
| /// A broadcast address has all octets set to 255 as defined in [RFC 919]. |
| /// [RFC 919]: https://tools.ietf.org/html/rfc919 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_broadcast(&self) -> bool { |
| self.octets()[0] == 255 && self.octets()[1] == 255 && |
| self.octets()[2] == 255 && self.octets()[3] == 255 |
| } |
| |
| /// Returns true if this address is in a range designated for documentation. |
| /// |
| /// This is defined in [RFC 5737]: |
| /// [RFC 5737]: https://tools.ietf.org/html/rfc5737 |
| /// |
| /// - 192.0.2.0/24 (TEST-NET-1) |
| /// - 198.51.100.0/24 (TEST-NET-2) |
| /// - 203.0.113.0/24 (TEST-NET-3) |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_documentation(&self) -> bool { |
| match(self.octets()[0], self.octets()[1], self.octets()[2], self.octets()[3]) { |
| (192, 0, 2, _) => true, |
| (198, 51, 100, _) => true, |
| (203, 0, 113, _) => true, |
| _ => false |
| } |
| } |
| |
| /// Converts this address to an IPv4-compatible IPv6 address. |
| /// |
| /// a.b.c.d becomes ::a.b.c.d |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn to_ipv6_compatible(&self) -> Ipv6Addr { |
| Ipv6Addr::new(0, 0, 0, 0, 0, 0, |
| ((self.octets()[0] as u16) << 8) | self.octets()[1] as u16, |
| ((self.octets()[2] as u16) << 8) | self.octets()[3] as u16) |
| } |
| |
| /// Converts this address to an IPv4-mapped IPv6 address. |
| /// |
| /// a.b.c.d becomes ::ffff:a.b.c.d |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn to_ipv6_mapped(&self) -> Ipv6Addr { |
| Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, |
| ((self.octets()[0] as u16) << 8) | self.octets()[1] as u16, |
| ((self.octets()[2] as u16) << 8) | self.octets()[3] as u16) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| #[allow(deprecated)] |
| impl fmt::Display for IpAddr { |
| fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { |
| match *self { |
| IpAddr::V4(ref a) => a.fmt(fmt), |
| IpAddr::V6(ref a) => a.fmt(fmt), |
| } |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Display for Ipv4Addr { |
| fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { |
| let octets = self.octets(); |
| write!(fmt, "{}.{}.{}.{}", octets[0], octets[1], octets[2], octets[3]) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Debug for Ipv4Addr { |
| fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { |
| fmt::Display::fmt(self, fmt) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Clone for Ipv4Addr { |
| fn clone(&self) -> Ipv4Addr { *self } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl PartialEq for Ipv4Addr { |
| fn eq(&self, other: &Ipv4Addr) -> bool { |
| self.inner.s_addr == other.inner.s_addr |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Eq for Ipv4Addr {} |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl hash::Hash for Ipv4Addr { |
| fn hash<H: hash::Hasher>(&self, s: &mut H) { |
| self.inner.s_addr.hash(s) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl PartialOrd for Ipv4Addr { |
| fn partial_cmp(&self, other: &Ipv4Addr) -> Option<Ordering> { |
| Some(self.cmp(other)) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Ord for Ipv4Addr { |
| fn cmp(&self, other: &Ipv4Addr) -> Ordering { |
| ntoh(self.inner.s_addr).cmp(&ntoh(other.inner.s_addr)) |
| } |
| } |
| |
| impl AsInner<c::in_addr> for Ipv4Addr { |
| fn as_inner(&self) -> &c::in_addr { &self.inner } |
| } |
| impl FromInner<c::in_addr> for Ipv4Addr { |
| fn from_inner(addr: c::in_addr) -> Ipv4Addr { |
| Ipv4Addr { inner: addr } |
| } |
| } |
| |
| #[stable(feature = "ip_u32", since = "1.1.0")] |
| impl From<Ipv4Addr> for u32 { |
| fn from(ip: Ipv4Addr) -> u32 { |
| let ip = ip.octets(); |
| ((ip[0] as u32) << 24) + ((ip[1] as u32) << 16) + ((ip[2] as u32) << 8) + (ip[3] as u32) |
| } |
| } |
| |
| #[stable(feature = "ip_u32", since = "1.1.0")] |
| impl From<u32> for Ipv4Addr { |
| fn from(ip: u32) -> Ipv4Addr { |
| Ipv4Addr::new((ip >> 24) as u8, (ip >> 16) as u8, (ip >> 8) as u8, ip as u8) |
| } |
| } |
| |
| #[stable(feature = "from_slice_v4", since = "1.9.0")] |
| impl From<[u8; 4]> for Ipv4Addr { |
| fn from(octets: [u8; 4]) -> Ipv4Addr { |
| Ipv4Addr::new(octets[0], octets[1], octets[2], octets[3]) |
| } |
| } |
| |
| impl 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. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn new(a: u16, b: u16, c: u16, d: u16, e: u16, f: u16, g: u16, |
| h: u16) -> Ipv6Addr { |
| let mut addr: c::in6_addr = unsafe { mem::zeroed() }; |
| addr.s6_addr = [(a >> 8) as u8, a as u8, |
| (b >> 8) as u8, b as u8, |
| (c >> 8) as u8, c as u8, |
| (d >> 8) as u8, d as u8, |
| (e >> 8) as u8, e as u8, |
| (f >> 8) as u8, f as u8, |
| (g >> 8) as u8, g as u8, |
| (h >> 8) as u8, h as u8]; |
| Ipv6Addr { inner: addr } |
| } |
| |
| /// Returns the eight 16-bit segments that make up this address. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn segments(&self) -> [u16; 8] { |
| let arr = &self.inner.s6_addr; |
| [ |
| (arr[0] as u16) << 8 | (arr[1] as u16), |
| (arr[2] as u16) << 8 | (arr[3] as u16), |
| (arr[4] as u16) << 8 | (arr[5] as u16), |
| (arr[6] as u16) << 8 | (arr[7] as u16), |
| (arr[8] as u16) << 8 | (arr[9] as u16), |
| (arr[10] as u16) << 8 | (arr[11] as u16), |
| (arr[12] as u16) << 8 | (arr[13] as u16), |
| (arr[14] as u16) << 8 | (arr[15] as u16), |
| ] |
| } |
| |
| /// Returns true for the special 'unspecified' address (::). |
| /// |
| /// This property is defined in [RFC 4291]. |
| /// [RFC 4291]: https://tools.ietf.org/html/rfc4291 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_unspecified(&self) -> bool { |
| self.segments() == [0, 0, 0, 0, 0, 0, 0, 0] |
| } |
| |
| /// Returns true if this is a loopback address (::1). |
| /// |
| /// This property is defined in [RFC 4291]. |
| /// [RFC 4291]: https://tools.ietf.org/html/rfc4291 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_loopback(&self) -> bool { |
| self.segments() == [0, 0, 0, 0, 0, 0, 0, 1] |
| } |
| |
| /// 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 |
| pub fn is_global(&self) -> bool { |
| match self.multicast_scope() { |
| Some(Ipv6MulticastScope::Global) => true, |
| None => self.is_unicast_global(), |
| _ => false |
| } |
| } |
| |
| /// Returns true if this is a unique local address (fc00::/7). |
| /// |
| /// This property is defined in [RFC 4193]. |
| /// [RFC 4193]: https://tools.ietf.org/html/rfc4193 |
| pub fn is_unique_local(&self) -> bool { |
| (self.segments()[0] & 0xfe00) == 0xfc00 |
| } |
| |
| /// Returns true if the address is unicast and link-local (fe80::/10). |
| /// |
| /// This property is defined in [RFC 4291]. |
| /// [RFC 4291]: https://tools.ietf.org/html/rfc4291 |
| pub fn is_unicast_link_local(&self) -> bool { |
| (self.segments()[0] & 0xffc0) == 0xfe80 |
| } |
| |
| /// Returns true if this is a deprecated unicast site-local address |
| /// (fec0::/10). |
| pub fn is_unicast_site_local(&self) -> bool { |
| (self.segments()[0] & 0xffc0) == 0xfec0 |
| } |
| |
| /// Returns true if this is an address reserved for documentation |
| /// (2001:db8::/32). |
| /// |
| /// This property is defined in [RFC 3849]. |
| /// [RFC 3849]: https://tools.ietf.org/html/rfc3849 |
| pub fn is_documentation(&self) -> bool { |
| (self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8) |
| } |
| |
| /// 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 |
| pub fn is_unicast_global(&self) -> bool { |
| !self.is_multicast() |
| && !self.is_loopback() && !self.is_unicast_link_local() |
| && !self.is_unicast_site_local() && !self.is_unique_local() |
| && !self.is_unspecified() && !self.is_documentation() |
| } |
| |
| /// Returns the address's multicast scope if the address is multicast. |
| pub fn multicast_scope(&self) -> Option<Ipv6MulticastScope> { |
| if self.is_multicast() { |
| match self.segments()[0] & 0x000f { |
| 1 => Some(Ipv6MulticastScope::InterfaceLocal), |
| 2 => Some(Ipv6MulticastScope::LinkLocal), |
| 3 => Some(Ipv6MulticastScope::RealmLocal), |
| 4 => Some(Ipv6MulticastScope::AdminLocal), |
| 5 => Some(Ipv6MulticastScope::SiteLocal), |
| 8 => Some(Ipv6MulticastScope::OrganizationLocal), |
| 14 => Some(Ipv6MulticastScope::Global), |
| _ => None |
| } |
| } else { |
| None |
| } |
| } |
| |
| /// Returns true if this is a multicast address (ff00::/8). |
| /// |
| /// This property is defined by [RFC 4291]. |
| /// [RFC 4291]: https://tools.ietf.org/html/rfc4291 |
| #[stable(since = "1.7.0", feature = "ip_17")] |
| pub fn is_multicast(&self) -> bool { |
| (self.segments()[0] & 0xff00) == 0xff00 |
| } |
| |
| /// 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 |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn to_ipv4(&self) -> Option<Ipv4Addr> { |
| match self.segments() { |
| [0, 0, 0, 0, 0, f, g, h] if f == 0 || f == 0xffff => { |
| Some(Ipv4Addr::new((g >> 8) as u8, g as u8, |
| (h >> 8) as u8, h as u8)) |
| }, |
| _ => None |
| } |
| } |
| |
| /// Returns the sixteen eight-bit integers the IPv6 address consists of. |
| #[stable(feature = "ipv6_to_octets", since = "1.12.0")] |
| pub fn octets(&self) -> [u8; 16] { |
| self.inner.s6_addr |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Display for Ipv6Addr { |
| fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { |
| match self.segments() { |
| // We need special cases for :: and ::1, otherwise they're formatted |
| // as ::0.0.0.[01] |
| [0, 0, 0, 0, 0, 0, 0, 0] => write!(fmt, "::"), |
| [0, 0, 0, 0, 0, 0, 0, 1] => write!(fmt, "::1"), |
| // Ipv4 Compatible address |
| [0, 0, 0, 0, 0, 0, g, h] => { |
| write!(fmt, "::{}.{}.{}.{}", (g >> 8) as u8, g as u8, |
| (h >> 8) as u8, h as u8) |
| } |
| // Ipv4-Mapped address |
| [0, 0, 0, 0, 0, 0xffff, g, h] => { |
| write!(fmt, "::ffff:{}.{}.{}.{}", (g >> 8) as u8, g as u8, |
| (h >> 8) as u8, h as u8) |
| }, |
| _ => { |
| fn find_zero_slice(segments: &[u16; 8]) -> (usize, usize) { |
| let mut longest_span_len = 0; |
| let mut longest_span_at = 0; |
| let mut cur_span_len = 0; |
| let mut cur_span_at = 0; |
| |
| for i in 0..8 { |
| if segments[i] == 0 { |
| if cur_span_len == 0 { |
| cur_span_at = i; |
| } |
| |
| cur_span_len += 1; |
| |
| if cur_span_len > longest_span_len { |
| longest_span_len = cur_span_len; |
| longest_span_at = cur_span_at; |
| } |
| } else { |
| cur_span_len = 0; |
| cur_span_at = 0; |
| } |
| } |
| |
| (longest_span_at, longest_span_len) |
| } |
| |
| let (zeros_at, zeros_len) = find_zero_slice(&self.segments()); |
| |
| if zeros_len > 1 { |
| fn fmt_subslice(segments: &[u16], fmt: &mut fmt::Formatter) -> fmt::Result { |
| if !segments.is_empty() { |
| write!(fmt, "{:x}", segments[0])?; |
| for &seg in &segments[1..] { |
| write!(fmt, ":{:x}", seg)?; |
| } |
| } |
| Ok(()) |
| } |
| |
| fmt_subslice(&self.segments()[..zeros_at], fmt)?; |
| fmt.write_str("::")?; |
| fmt_subslice(&self.segments()[zeros_at + zeros_len..], fmt) |
| } else { |
| let &[a, b, c, d, e, f, g, h] = &self.segments(); |
| write!(fmt, "{:x}:{:x}:{:x}:{:x}:{:x}:{:x}:{:x}:{:x}", |
| a, b, c, d, e, f, g, h) |
| } |
| } |
| } |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Debug for Ipv6Addr { |
| fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { |
| fmt::Display::fmt(self, fmt) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Clone for Ipv6Addr { |
| fn clone(&self) -> Ipv6Addr { *self } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl PartialEq for Ipv6Addr { |
| fn eq(&self, other: &Ipv6Addr) -> bool { |
| self.inner.s6_addr == other.inner.s6_addr |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Eq for Ipv6Addr {} |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl hash::Hash for Ipv6Addr { |
| fn hash<H: hash::Hasher>(&self, s: &mut H) { |
| self.inner.s6_addr.hash(s) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl PartialOrd for Ipv6Addr { |
| fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering> { |
| Some(self.cmp(other)) |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Ord for Ipv6Addr { |
| fn cmp(&self, other: &Ipv6Addr) -> Ordering { |
| self.segments().cmp(&other.segments()) |
| } |
| } |
| |
| impl AsInner<c::in6_addr> for Ipv6Addr { |
| fn as_inner(&self) -> &c::in6_addr { &self.inner } |
| } |
| impl FromInner<c::in6_addr> for Ipv6Addr { |
| fn from_inner(addr: c::in6_addr) -> Ipv6Addr { |
| Ipv6Addr { inner: addr } |
| } |
| } |
| |
| #[stable(feature = "ipv6_from_octets", since = "1.9.0")] |
| impl From<[u8; 16]> for Ipv6Addr { |
| fn from(octets: [u8; 16]) -> Ipv6Addr { |
| let mut inner: c::in6_addr = unsafe { mem::zeroed() }; |
| inner.s6_addr = octets; |
| Ipv6Addr::from_inner(inner) |
| } |
| } |
| |
| // Tests for this module |
| #[cfg(test)] |
| mod tests { |
| use net::*; |
| use net::Ipv6MulticastScope::*; |
| use net::test::{tsa, sa6, sa4}; |
| |
| #[test] |
| fn test_from_str_ipv4() { |
| assert_eq!(Ok(Ipv4Addr::new(127, 0, 0, 1)), "127.0.0.1".parse()); |
| assert_eq!(Ok(Ipv4Addr::new(255, 255, 255, 255)), "255.255.255.255".parse()); |
| assert_eq!(Ok(Ipv4Addr::new(0, 0, 0, 0)), "0.0.0.0".parse()); |
| |
| // out of range |
| let none: Option<Ipv4Addr> = "256.0.0.1".parse().ok(); |
| assert_eq!(None, none); |
| // too short |
| let none: Option<Ipv4Addr> = "255.0.0".parse().ok(); |
| assert_eq!(None, none); |
| // too long |
| let none: Option<Ipv4Addr> = "255.0.0.1.2".parse().ok(); |
| assert_eq!(None, none); |
| // no number between dots |
| let none: Option<Ipv4Addr> = "255.0..1".parse().ok(); |
| assert_eq!(None, none); |
| } |
| |
| #[test] |
| fn test_from_str_ipv6() { |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)), "0:0:0:0:0:0:0:0".parse()); |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)), "0:0:0:0:0:0:0:1".parse()); |
| |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)), "::1".parse()); |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)), "::".parse()); |
| |
| assert_eq!(Ok(Ipv6Addr::new(0x2a02, 0x6b8, 0, 0, 0, 0, 0x11, 0x11)), |
| "2a02:6b8::11:11".parse()); |
| |
| // too long group |
| let none: Option<Ipv6Addr> = "::00000".parse().ok(); |
| assert_eq!(None, none); |
| // too short |
| let none: Option<Ipv6Addr> = "1:2:3:4:5:6:7".parse().ok(); |
| assert_eq!(None, none); |
| // too long |
| let none: Option<Ipv6Addr> = "1:2:3:4:5:6:7:8:9".parse().ok(); |
| assert_eq!(None, none); |
| // triple colon |
| let none: Option<Ipv6Addr> = "1:2:::6:7:8".parse().ok(); |
| assert_eq!(None, none); |
| // two double colons |
| let none: Option<Ipv6Addr> = "1:2::6::8".parse().ok(); |
| assert_eq!(None, none); |
| } |
| |
| #[test] |
| fn test_from_str_ipv4_in_ipv6() { |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 49152, 545)), |
| "::192.0.2.33".parse()); |
| assert_eq!(Ok(Ipv6Addr::new(0, 0, 0, 0, 0, 0xFFFF, 49152, 545)), |
| "::FFFF:192.0.2.33".parse()); |
| assert_eq!(Ok(Ipv6Addr::new(0x64, 0xff9b, 0, 0, 0, 0, 49152, 545)), |
| "64:ff9b::192.0.2.33".parse()); |
| assert_eq!(Ok(Ipv6Addr::new(0x2001, 0xdb8, 0x122, 0xc000, 0x2, 0x2100, 49152, 545)), |
| "2001:db8:122:c000:2:2100:192.0.2.33".parse()); |
| |
| // colon after v4 |
| let none: Option<Ipv4Addr> = "::127.0.0.1:".parse().ok(); |
| assert_eq!(None, none); |
| // not enough groups |
| let none: Option<Ipv6Addr> = "1.2.3.4.5:127.0.0.1".parse().ok(); |
| assert_eq!(None, none); |
| // too many groups |
| let none: Option<Ipv6Addr> = "1.2.3.4.5:6:7:127.0.0.1".parse().ok(); |
| assert_eq!(None, none); |
| } |
| |
| #[test] |
| fn test_from_str_socket_addr() { |
| assert_eq!(Ok(sa4(Ipv4Addr::new(77, 88, 21, 11), 80)), |
| "77.88.21.11:80".parse()); |
| assert_eq!(Ok(SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80)), |
| "77.88.21.11:80".parse()); |
| assert_eq!(Ok(sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53)), |
| "[2a02:6b8:0:1::1]:53".parse()); |
| assert_eq!(Ok(SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, |
| 0, 0, 0, 1), 53, 0, 0)), |
| "[2a02:6b8:0:1::1]:53".parse()); |
| assert_eq!(Ok(sa6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0x7F00, 1), 22)), |
| "[::127.0.0.1]:22".parse()); |
| assert_eq!(Ok(SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, |
| 0x7F00, 1), 22, 0, 0)), |
| "[::127.0.0.1]:22".parse()); |
| |
| // without port |
| let none: Option<SocketAddr> = "127.0.0.1".parse().ok(); |
| assert_eq!(None, none); |
| // without port |
| let none: Option<SocketAddr> = "127.0.0.1:".parse().ok(); |
| assert_eq!(None, none); |
| // wrong brackets around v4 |
| let none: Option<SocketAddr> = "[127.0.0.1]:22".parse().ok(); |
| assert_eq!(None, none); |
| // port out of range |
| let none: Option<SocketAddr> = "127.0.0.1:123456".parse().ok(); |
| assert_eq!(None, none); |
| } |
| |
| #[test] |
| fn ipv6_addr_to_string() { |
| // ipv4-mapped address |
| let a1 = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc000, 0x280); |
| assert_eq!(a1.to_string(), "::ffff:192.0.2.128"); |
| |
| // ipv4-compatible address |
| let a1 = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0xc000, 0x280); |
| assert_eq!(a1.to_string(), "::192.0.2.128"); |
| |
| // v6 address with no zero segments |
| assert_eq!(Ipv6Addr::new(8, 9, 10, 11, 12, 13, 14, 15).to_string(), |
| "8:9:a:b:c:d:e:f"); |
| |
| // reduce a single run of zeros |
| assert_eq!("ae::ffff:102:304", |
| Ipv6Addr::new(0xae, 0, 0, 0, 0, 0xffff, 0x0102, 0x0304).to_string()); |
| |
| // don't reduce just a single zero segment |
| assert_eq!("1:2:3:4:5:6:0:8", |
| Ipv6Addr::new(1, 2, 3, 4, 5, 6, 0, 8).to_string()); |
| |
| // 'any' address |
| assert_eq!("::", Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0).to_string()); |
| |
| // loopback address |
| assert_eq!("::1", Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_string()); |
| |
| // ends in zeros |
| assert_eq!("1::", Ipv6Addr::new(1, 0, 0, 0, 0, 0, 0, 0).to_string()); |
| |
| // two runs of zeros, second one is longer |
| assert_eq!("1:0:0:4::8", Ipv6Addr::new(1, 0, 0, 4, 0, 0, 0, 8).to_string()); |
| |
| // two runs of zeros, equal length |
| assert_eq!("1::4:5:0:0:8", Ipv6Addr::new(1, 0, 0, 4, 5, 0, 0, 8).to_string()); |
| } |
| |
| #[test] |
| fn ipv4_to_ipv6() { |
| assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x1234, 0x5678), |
| Ipv4Addr::new(0x12, 0x34, 0x56, 0x78).to_ipv6_mapped()); |
| assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0x1234, 0x5678), |
| Ipv4Addr::new(0x12, 0x34, 0x56, 0x78).to_ipv6_compatible()); |
| } |
| |
| #[test] |
| fn ipv6_to_ipv4() { |
| assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x1234, 0x5678).to_ipv4(), |
| Some(Ipv4Addr::new(0x12, 0x34, 0x56, 0x78))); |
| assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0x1234, 0x5678).to_ipv4(), |
| Some(Ipv4Addr::new(0x12, 0x34, 0x56, 0x78))); |
| assert_eq!(Ipv6Addr::new(0, 0, 1, 0, 0, 0, 0x1234, 0x5678).to_ipv4(), |
| None); |
| } |
| |
| #[test] |
| fn ip_properties() { |
| fn check4(octets: &[u8; 4], unspec: bool, loopback: bool, |
| global: bool, multicast: bool, documentation: bool) { |
| let ip = IpAddr::V4(Ipv4Addr::new(octets[0], octets[1], octets[2], octets[3])); |
| assert_eq!(ip.is_unspecified(), unspec); |
| assert_eq!(ip.is_loopback(), loopback); |
| assert_eq!(ip.is_global(), global); |
| assert_eq!(ip.is_multicast(), multicast); |
| assert_eq!(ip.is_documentation(), documentation); |
| } |
| |
| fn check6(str_addr: &str, unspec: bool, loopback: bool, |
| global: bool, u_doc: bool, mcast: bool) { |
| let ip = IpAddr::V6(str_addr.parse().unwrap()); |
| assert_eq!(ip.is_unspecified(), unspec); |
| assert_eq!(ip.is_loopback(), loopback); |
| assert_eq!(ip.is_global(), global); |
| assert_eq!(ip.is_documentation(), u_doc); |
| assert_eq!(ip.is_multicast(), mcast); |
| } |
| |
| // address unspec loopbk global multicast doc |
| check4(&[0, 0, 0, 0], true, false, false, false, false); |
| check4(&[0, 0, 0, 1], false, false, true, false, false); |
| check4(&[0, 1, 0, 0], false, false, true, false, false); |
| check4(&[10, 9, 8, 7], false, false, false, false, false); |
| check4(&[127, 1, 2, 3], false, true, false, false, false); |
| check4(&[172, 31, 254, 253], false, false, false, false, false); |
| check4(&[169, 254, 253, 242], false, false, false, false, false); |
| check4(&[192, 0, 2, 183], false, false, false, false, true); |
| check4(&[192, 1, 2, 183], false, false, true, false, false); |
| check4(&[192, 168, 254, 253], false, false, false, false, false); |
| check4(&[198, 51, 100, 0], false, false, false, false, true); |
| check4(&[203, 0, 113, 0], false, false, false, false, true); |
| check4(&[203, 2, 113, 0], false, false, true, false, false); |
| check4(&[224, 0, 0, 0], false, false, true, true, false); |
| check4(&[239, 255, 255, 255], false, false, true, true, false); |
| check4(&[255, 255, 255, 255], false, false, false, false, false); |
| |
| // address unspec loopbk global doc mcast |
| check6("::", true, false, false, false, false); |
| check6("::1", false, true, false, false, false); |
| check6("::0.0.0.2", false, false, true, false, false); |
| check6("1::", false, false, true, false, false); |
| check6("fc00::", false, false, false, false, false); |
| check6("fdff:ffff::", false, false, false, false, false); |
| check6("fe80:ffff::", false, false, false, false, false); |
| check6("febf:ffff::", false, false, false, false, false); |
| check6("fec0::", false, false, false, false, false); |
| check6("ff01::", false, false, false, false, true); |
| check6("ff02::", false, false, false, false, true); |
| check6("ff03::", false, false, false, false, true); |
| check6("ff04::", false, false, false, false, true); |
| check6("ff05::", false, false, false, false, true); |
| check6("ff08::", false, false, false, false, true); |
| check6("ff0e::", false, false, true, false, true); |
| check6("2001:db8:85a3::8a2e:370:7334", false, false, false, true, false); |
| check6("102:304:506:708:90a:b0c:d0e:f10", false, false, true, false, false); |
| } |
| |
| #[test] |
| fn ipv4_properties() { |
| fn check(octets: &[u8; 4], unspec: bool, loopback: bool, |
| private: bool, link_local: bool, global: bool, |
| multicast: bool, broadcast: bool, documentation: bool) { |
| let ip = Ipv4Addr::new(octets[0], octets[1], octets[2], octets[3]); |
| assert_eq!(octets, &ip.octets()); |
| |
| assert_eq!(ip.is_unspecified(), unspec); |
| assert_eq!(ip.is_loopback(), loopback); |
| assert_eq!(ip.is_private(), private); |
| assert_eq!(ip.is_link_local(), link_local); |
| assert_eq!(ip.is_global(), global); |
| assert_eq!(ip.is_multicast(), multicast); |
| assert_eq!(ip.is_broadcast(), broadcast); |
| assert_eq!(ip.is_documentation(), documentation); |
| } |
| |
| // address unspec loopbk privt linloc global multicast brdcast doc |
| check(&[0, 0, 0, 0], true, false, false, false, false, false, false, false); |
| check(&[0, 0, 0, 1], false, false, false, false, true, false, false, false); |
| check(&[0, 1, 0, 0], false, false, false, false, true, false, false, false); |
| check(&[10, 9, 8, 7], false, false, true, false, false, false, false, false); |
| check(&[127, 1, 2, 3], false, true, false, false, false, false, false, false); |
| check(&[172, 31, 254, 253], false, false, true, false, false, false, false, false); |
| check(&[169, 254, 253, 242], false, false, false, true, false, false, false, false); |
| check(&[192, 0, 2, 183], false, false, false, false, false, false, false, true); |
| check(&[192, 1, 2, 183], false, false, false, false, true, false, false, false); |
| check(&[192, 168, 254, 253], false, false, true, false, false, false, false, false); |
| check(&[198, 51, 100, 0], false, false, false, false, false, false, false, true); |
| check(&[203, 0, 113, 0], false, false, false, false, false, false, false, true); |
| check(&[203, 2, 113, 0], false, false, false, false, true, false, false, false); |
| check(&[224, 0, 0, 0], false, false, false, false, true, true, false, false); |
| check(&[239, 255, 255, 255], false, false, false, false, true, true, false, false); |
| check(&[255, 255, 255, 255], false, false, false, false, false, false, true, false); |
| } |
| |
| #[test] |
| fn ipv6_properties() { |
| fn check(str_addr: &str, octets: &[u8; 16], unspec: bool, loopback: bool, |
| unique_local: bool, global: bool, |
| u_link_local: bool, u_site_local: bool, u_global: bool, u_doc: bool, |
| m_scope: Option<Ipv6MulticastScope>) { |
| let ip: Ipv6Addr = str_addr.parse().unwrap(); |
| assert_eq!(str_addr, ip.to_string()); |
| assert_eq!(&ip.octets(), octets); |
| assert_eq!(Ipv6Addr::from(*octets), ip); |
| |
| assert_eq!(ip.is_unspecified(), unspec); |
| assert_eq!(ip.is_loopback(), loopback); |
| assert_eq!(ip.is_unique_local(), unique_local); |
| assert_eq!(ip.is_global(), global); |
| assert_eq!(ip.is_unicast_link_local(), u_link_local); |
| assert_eq!(ip.is_unicast_site_local(), u_site_local); |
| assert_eq!(ip.is_unicast_global(), u_global); |
| assert_eq!(ip.is_documentation(), u_doc); |
| assert_eq!(ip.multicast_scope(), m_scope); |
| assert_eq!(ip.is_multicast(), m_scope.is_some()); |
| } |
| |
| // unspec loopbk uniqlo global unill unisl uniglo doc mscope |
| check("::", &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| true, false, false, false, false, false, false, false, None); |
| check("::1", &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1], |
| false, true, false, false, false, false, false, false, None); |
| check("::0.0.0.2", &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2], |
| false, false, false, true, false, false, true, false, None); |
| check("1::", &[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, true, false, false, true, false, None); |
| check("fc00::", &[0xfc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, true, false, false, false, false, false, None); |
| check("fdff:ffff::", &[0xfd, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, true, false, false, false, false, false, None); |
| check("fe80:ffff::", &[0xfe, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, true, false, false, false, None); |
| check("febf:ffff::", &[0xfe, 0xbf, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, true, false, false, false, None); |
| check("fec0::", &[0xfe, 0xc0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, true, false, false, None); |
| check("ff01::", &[0xff, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(InterfaceLocal)); |
| check("ff02::", &[0xff, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(LinkLocal)); |
| check("ff03::", &[0xff, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(RealmLocal)); |
| check("ff04::", &[0xff, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(AdminLocal)); |
| check("ff05::", &[0xff, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(SiteLocal)); |
| check("ff08::", &[0xff, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, false, false, false, false, false, Some(OrganizationLocal)); |
| check("ff0e::", &[0xff, 0xe, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], |
| false, false, false, true, false, false, false, false, Some(Global)); |
| check("2001:db8:85a3::8a2e:370:7334", |
| &[0x20, 1, 0xd, 0xb8, 0x85, 0xa3, 0, 0, 0, 0, 0x8a, 0x2e, 3, 0x70, 0x73, 0x34], |
| false, false, false, false, false, false, false, true, None); |
| check("102:304:506:708:90a:b0c:d0e:f10", |
| &[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16], |
| false, false, false, true, false, false, true, false, None); |
| } |
| |
| #[test] |
| fn to_socket_addr_socketaddr() { |
| let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 12345); |
| assert_eq!(Ok(vec![a]), tsa(a)); |
| } |
| |
| #[test] |
| fn test_ipv4_to_int() { |
| let a = Ipv4Addr::new(127, 0, 0, 1); |
| assert_eq!(u32::from(a), 2130706433); |
| } |
| |
| #[test] |
| fn test_int_to_ipv4() { |
| let a = Ipv4Addr::new(127, 0, 0, 1); |
| assert_eq!(Ipv4Addr::from(2130706433), a); |
| } |
| |
| #[test] |
| fn ipv4_from_u32_slice() { |
| assert_eq!(Ipv4Addr::from([127, 0, 0, 1]), Ipv4Addr::new(127, 0, 0, 1)) |
| } |
| |
| #[test] |
| fn ord() { |
| assert!(Ipv4Addr::new(100, 64, 3, 3) < Ipv4Addr::new(192, 0, 2, 2)); |
| assert!("2001:db8:f00::1002".parse::<Ipv6Addr>().unwrap() < |
| "2001:db8:f00::2001".parse::<Ipv6Addr>().unwrap()); |
| } |
| } |
