Struct tor_netdoc::types::policy::PortPolicy

pub struct PortPolicy { /* private fields */ }

A policy to match zero or more TCP/UDP ports.

These are used in Tor to summarize all policies in microdescriptors, and Ipv6 policies in router descriptors.

NOTE: If a port is listed as accepted, it doesn’t mean that the relay allows every address on that port. Instead, a port is listed if a relay will exit to most public addresses on that port. Therefore, unlike super::addrpolicy::AddrPolicy objects, these policies cannot tell you if a port is definitely allowed or rejected: only if it is probably allowed or rejected.

Examples

use tor_netdoc::types::policy::PortPolicy;
let policy: PortPolicy = "accept 1-1023,8000-8999,60000-65535".parse().unwrap();

assert!(policy.allows_port(22));
assert!(policy.allows_port(8000));
assert!(! policy.allows_port(1024));
assert!(! policy.allows_port(9000));

Implementations

impl PortPolicy

pub fn new_reject_all() -> Self

Return a new PortPolicy that rejects all ports.

pub fn allows_port(&self, port: u16) -> bool

Return true iff port is allowed by this policy.

pub fn intern(self) -> Arc<Self>

Replace this PortPolicy with an interned copy, to save memory.

pub fn allows_some_port(&self) -> bool

Return true if this policy allows any ports at all.

Example

use tor_netdoc::types::policy::PortPolicy;

let policy: PortPolicy = "accept 22".parse().unwrap();
assert!(policy.allows_some_port());
let policy2: PortPolicy = "reject 1-65535".parse().unwrap();
assert!(! policy2.allows_some_port());

Trait Implementations

impl Clone for PortPolicy

fn clone(&self) -> PortPolicy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PortPolicy

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

Formats the value using the given formatter.

impl Display for PortPolicy

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

Formats the value using the given formatter.

impl FromStr for PortPolicy

type Err = PolicyError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, PolicyError>

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

impl Hash for PortPolicy

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

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 PartialEq<PortPolicy> for PortPolicy

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

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

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

This method tests for !=.

impl Eq for PortPolicy

impl StructuralEq for PortPolicy

impl StructuralPartialEq for PortPolicy