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Message-ID: <2764878.1661521182@warthog.procyon.org.uk> Date: Fri, 26 Aug 2022 14:39:42 +0100 From: David Howells <dhowells@...hat.com> To: unlisted-recipients:; (no To-header on input) Cc: dhowells@...hat.com, Eric Dumazet <edumazet@...gle.com>, David Miller <davem@...emloft.net>, netdev@...r.kernel.org Subject: Re: Not getting ICMP reports from the UDP socket in rxrpc David Howells <dhowells@...hat.com> wrote: > Do you know if ICMP handling has changed inside of ipv4/ipv6? I've realised > that though rxrpc tries to get ICMP events, they're not coming through. > > rxrpc_open_socket() does: > > usk->sk_error_report = rxrpc_error_report; > > to set the error collector and: > > ip6_sock_set_recverr(usk); > ip_sock_set_recverr(usk); > > as appropriate to say that it wants to get ICMP messages, but they don't seem > to come. I put a printk() into sk_error_report(), but I don't see anything > printed when ICMP messages come in (but I do if I telnet to a random port on > my test server). Ah... there's a separate error handling hook (encap_err_lookup) for tunnels. I guess I need that. Do you know if only ICMP/ICMP6 messages go through that and not other SO_EE_ORIGIN_* types? David
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