1.4: core: services: ping: ping360_ethernet_prober: Use REUSEADDR with 30303

[patrickelectric]

As requested

Summary by Sourcery

Bug Fixes:

• Allow the Ping360 Ethernet prober to bind reliably to the broadcast port by enabling SO_REUSEADDR on its UDP socket.

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Note

Low Risk
Single-socket option change limited to UDP discovery binding behavior; low likelihood of impacting other functionality beyond making binds more permissive.

Overview
Improves Ping360 Ethernet discovery reliability by enabling SO_REUSEADDR on the UDP socket before binding to port 30303, reducing failures when the port is already in use or recently closed.

^{Written by Cursor Bugbot for commit 80a5c64. This will update automatically on new commits. Configure here.}

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds SO_REUSEADDR to the UDP broadcast socket used in the Ping360 Ethernet prober to improve rebinding behavior on port 30303.

Sequence diagram for Ping360 Ethernet prober socket creation with SO_REUSEADDR

sequenceDiagram
    participant Ping360EthernetProber
    participant UDPSocket
    participant NetworkStack

    Ping360EthernetProber->>UDPSocket: socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
    Ping360EthernetProber->>UDPSocket: setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
    Ping360EthernetProber->>UDPSocket: setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
    Ping360EthernetProber->>UDPSocket: settimeout(0.2)
    Ping360EthernetProber->>NetworkStack: sendto(broadcast, port_30303)
    NetworkStack-->>Ping360EthernetProber: recvfrom(responses)

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File-Level Changes

Change	Details	Files
Enable address reuse on the UDP broadcast socket used during Ping360 Ethernet discovery.	Configure the probe’s UDP socket with SO_REUSEADDR in addition to SO_BROADCAST. Keep existing timeout-based non-blocking receive behavior for discovery responses.	core/services/ping/ping360_ethernet_prober.py

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