From eugen@freebsd.org Sat Oct 28 16:29:01 2023 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 4SHlNN0mmtz501Ql for ; Sat, 28 Oct 2023 16:29:08 +0000 (UTC) (envelope-from eugen@freebsd.org) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:c2c:26d8::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4SHlNM3JSBz3S2D for ; Sat, 28 Oct 2023 16:29:07 +0000 (UTC) (envelope-from eugen@freebsd.org) Authentication-Results: mx1.freebsd.org; dkim=none; spf=softfail (mx1.freebsd.org: 2a01:4f8:c2c:26d8::2 is neither permitted nor denied by domain of eugen@freebsd.org) smtp.mailfrom=eugen@freebsd.org; dmarc=none Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.17.1/8.17.1) with ESMTPS id 39SGT4Je000227 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Sat, 28 Oct 2023 16:29:05 GMT (envelope-from eugen@freebsd.org) X-Envelope-From: eugen@freebsd.org X-Envelope-To: roy@marples.name Received: from [10.58.0.11] (dadvw [10.58.0.11] (may be forged)) by eg.sd.rdtc.ru (8.17.1/8.17.1) with ESMTPS id 39SGT3Ss065198 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Sat, 28 Oct 2023 23:29:03 +0700 (+07) (envelope-from eugen@freebsd.org) Subject: =?UTF-8?Q?Re:_=c2=a0netif_userland_API?= To: Roy Marples References: <18b77179746.d0c6d171174837.5548971766419580308@marples.name> Cc: "freebsd-net@freebsd.org" From: Eugene Grosbein Message-ID: <847fa0cf-db1e-45b3-3a0a-37dd647dabc9@freebsd.org> Date: Sat, 28 Oct 2023 23:29:01 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 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 In-Reply-To: <18b77179746.d0c6d171174837.5548971766419580308@marples.name> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT autolearn=disabled version=3.4.6 X-Spam-Report: * -0.0 SHORTCIRCUIT No description available. * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on hz.grosbein.net X-Spamd-Result: default: False [-2.98 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-0.97)[-0.975]; NEURAL_HAM_SHORT(-0.90)[-0.904]; MIME_GOOD(-0.10)[text/plain]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; RCPT_COUNT_TWO(0.00)[2]; TO_DN_EQ_ADDR_SOME(0.00)[]; R_DKIM_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/32, country:DE]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; R_SPF_SOFTFAIL(0.00)[~all]; DMARC_NA(0.00)[freebsd.org]; FREEFALL_USER(0.00)[eugen]; ARC_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[] X-Rspamd-Queue-Id: 4SHlNM3JSBz3S2D X-Spamd-Bar: -- 28.10.2023 23:21, Roy Marples wrote: > What you would do is open a route socket, then call getifaddrs and then listen on the route socket for new interfaces. > > Then you can maintain a list of current vlans and take action accordingly. I'd like to be able to make a couple of system calls only to get a list of pre-created vlans for a moment. Efficiently and scalable. Not making thousands of reads (syscalls) from routing sockets and not syncing with the kernel. Eugene