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Re: [lwip-users] Multiple netifs: UDP broadcasts on a certain netif show
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Re: [lwip-users] Multiple netifs: UDP broadcasts on a certain netif showing up on udps connected to a different netif |
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Date: |
Wed, 21 Feb 2018 19:55:48 +0100 |
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On 21.02.2018 14:39, Steinberg Michael wrote:
seemingly the udp_input code is serving UDP broadcasts originating from a
certain netif to UDP sockets/pcbs bound to the correct port on a different
netif.
I'm not aware of that, could you file a bug until this is sorted out?
Patching udp.c:255 following to:
#endif /* SO_REUSE */
) && (inp->ip_addr.addr == pcb->local_ip.addr)) {
/* the first unconnected matching PCB */
uncon_pcb = pcb;
seems like a working short term fix.
That seems to prevent pcbs with a local IP of 'any' from receiving such
packets.
Simon