feat: interface can be filtered and flags

[hanskorg]

• unix like os uses interface ifa_flags to map interface types, on windows
  It uses IfType
• add filter fn

///  This helps people filter interfaces that look like`Ethernet` and are running
NetworkInterface::filter(NetworkInterface::show().unwarp(), IFF_ETH   | IFF_RUNNING)

[LeoBorai]

Great PR @hanskorg!

Thank you so much! I just have some nitpick comments, I think running cargo fmt should get them fixed (at least most of them).

Other is the DocString suggestion.

Great to have the example indeed!

I think I can draft a release in the next hours if fmt is addressed.

[Copilot]

Pull request overview

This pull request adds interface filtering capabilities to the network-interface library, allowing users to filter network interfaces by flags (such as Ethernet, wireless, VPN, etc.). The implementation accounts for platform differences between Unix-like systems (which use ifa_flags) and Windows (which uses IfType).

• Adds a new filter method to the NetworkInterfaceConfig trait for filtering interfaces by flags
• Introduces platform-specific flag constants (IFF_ETH, IFF_WIRELESS, IFF_TUN, IFF_LOOPBACK, IFF_RUNNING, IFF_VPN)
• Adds Status enum and corresponding fields to track interface operational status

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 14 comments.

Show a summary per file

File	Description
src/lib.rs	Adds filter method to NetworkInterfaceConfig trait with documentation
src/interface.rs	Defines Status enum, platform-specific flag constants, and adds status/flags fields to NetworkInterface struct
src/target/windows.rs	Implements filter method and helper functions to map Windows IfType to flag constants
src/target/unix/mod.rs	Implements filter method and netifa_status function for Unix-like systems
src/target/linux.rs	Implements filter method and netifa_status function for Linux
examples/demo.rs	Updates example to demonstrate interface filtering
Cargo.toml	Removes duplicate keyword and adds demo binary configuration

Comments suppressed due to low confidence (1)

src/interface.rs:1

• Missing space after comma before flags parameter. Should be ifas: &Vec<NetworkInterface>, flags: i32.

//! Network Interface abstraction from commonly used fields for nodes from the

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[LeoBorai]

@hanskorg seems like there is a dmport issue in the example

[LeoBorai]

@hanskorg seems like theres an issue with the pipe operator?

[hanskorg]

Windows os impl needs more tests