From nobody Tue Nov 26 13:31:42 2024 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XyNsR5m1Mz5fTS6 for ; Tue, 26 Nov 2024 13:36:59 +0000 (UTC) (envelope-from pi@freebsd.org) Received: from fc.opsec.eu (fc.opsec.eu [IPv6:2001:14f8:200:4::4]) by mx1.freebsd.org (Postfix) with ESMTP id 4XyNsQ5NGqz4NxM for ; Tue, 26 Nov 2024 13:36:58 +0000 (UTC) (envelope-from pi@freebsd.org) Authentication-Results: mx1.freebsd.org; dkim=none; spf=softfail (mx1.freebsd.org: 2001:14f8:200:4::4 is neither permitted nor denied by domain of pi@freebsd.org) smtp.mailfrom=pi@freebsd.org; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=freebsd.org (policy=none) Received: from pi (uid 104) (envelope-from pi@freebsd.org) id 84073 by fc.opsec.eu (DragonFly Mail Agent v0.13+ on fc.opsec.eu); Tue, 26 Nov 2024 14:31:42 +0100 Date: Tue, 26 Nov 2024 14:31:42 +0100 From: Kurt Jaeger To: freebsd-net@freebsd.org Subject: MSG_ERRQUEUE in socket recvmsg ? Message-ID: List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spamd-Result: default: False [1.73 / 15.00]; VIOLATED_DIRECT_SPF(3.50)[]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_LONG(-0.99)[-0.989]; NEURAL_HAM_MEDIUM(-0.98)[-0.978]; ONCE_RECEIVED(0.10)[]; RCVD_NO_TLS_LAST(0.10)[]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : No valid SPF, No valid DKIM,none]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MISSING_XM_UA(0.00)[]; GREYLIST(0.00)[pass,body]; RCVD_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:12502, ipnet:2001:14f8::/32, country:DE]; MIME_TRACE(0.00)[0:+]; R_SPF_SOFTFAIL(0.00)[~all]; FROM_EQ_ENVFROM(0.00)[]; FREEFALL_USER(0.00)[pi]; TO_DN_NONE(0.00)[]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; TO_DOM_EQ_FROM_DOM(0.00)[]; FROM_HAS_DN(0.00)[] X-Rspamd-Queue-Id: 4XyNsQ5NGqz4NxM X-Spamd-Bar: + Hello, there's a tool called tracepath (similar to traceroute) and some implementation in python: https://github.com/keiichishima/pytracepath It depends on recv(2) having some MSG_ERRQUEUE flag. Does anyone know if that is being worked on or if there's a reason that FreeBSD does not have that flag ? Thanks! -- pi@FreeBSD.org +49 171 3101372 Now what ?