From owner-freebsd-net@freebsd.org Thu Sep 26 12:39:30 2019 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EFEA0125A22 for ; Thu, 26 Sep 2019 12:39:30 +0000 (UTC) (envelope-from luthramihir708@gmail.com) Received: from mail-vk1-xa2a.google.com (mail-vk1-xa2a.google.com [IPv6:2607:f8b0:4864:20::a2a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46fDyV0KFtz4CDv; Thu, 26 Sep 2019 12:39:29 +0000 (UTC) (envelope-from luthramihir708@gmail.com) Received: by mail-vk1-xa2a.google.com with SMTP id u192so391021vkb.12; Thu, 26 Sep 2019 05:39:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=3wxrKeZA90IgNciHbsq29ms6NR4HpbgndZEqCVlTqNc=; b=fMkadTc6b47pwJjNfdThKXKQEukUUercFsjx0X4MMwdQ7/nS+0ydfSgG04otP/vYfX UjeSIMz6Rp5NtSeZzq2fs0IBA8imwgGb1s2SitoJHmZaKzHfd1jXt5HAyo/eXtvJfdT1 Daf4Dp+KP2wE329w70AlYSpvqVxHWWMoN4FAK2ds8x/6YFQrwuXy45BaF2YB5Dm5rgxN CW9ybDvd8T3JdoudPRA78ZdSSO1FpcehstYD2DTWQRdHniadrz94dWst6b9YA53ajFbW /Oovdsi4J156wZ8AUVLbrk6lonFfXu5pK1kZt3Fi96TzjwNb48h9Lx64ZiYt2m0guyzQ 6ENg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=3wxrKeZA90IgNciHbsq29ms6NR4HpbgndZEqCVlTqNc=; b=D9wlbk2KzGtCPT5h8LCehY59tvjyrbX5jQHb7BOh4fw2C4DvOhGqMRuvWMe1t1GL1z ml/4DoQ8yZbNYtGycDc2qlhgXI303FZRGFaKtsFT+54WtwlHrWIeQ0NkwN2r2N3YYQTe iHp0djU5LuWVtz/atf2JmmfmwCViJTVblkN4O+fHgPsOc8FbFuwcsGVdgrNA3rTrU+3Q yvw+2qHBfAJZdhZ5V/Q7Z33uEOvWrdZp09N7rcLFLTibwx/3vMhNW5j2Wgh3+3Jq1Wpa DKgHXD5e/AH+1Id2L764bvdKXdj0afh/4D/YORee6H0New3t2b7+muljQbFvA9L/1Eaf 5j+Q== X-Gm-Message-State: APjAAAW/NqqVRcQJnwo6Ak/2YvK53zpdbHmzTGv0GCJi/KYz7C2u0Rup mNwVYMfyOSpOXq5HPeyU2Y+71LAR0Widl7U61INGYhKw X-Google-Smtp-Source: APXvYqxUeAn3Mu36UUe8SxEHVuDJxlpB9DufVpGC2m7W7zcJ4AkWYb1LDnSpVdp09AeeAW8OkBCx+GDvBnYIz65v9X0= X-Received: by 2002:a1f:3251:: with SMTP id y78mr1517967vky.68.1569501568793; Thu, 26 Sep 2019 05:39:28 -0700 (PDT) MIME-Version: 1.0 References: <20190925.085753.1800759957383540219.hrs@allbsd.org> <20190926.054603.242590258844901628.hrs@allbsd.org> In-Reply-To: <20190926.054603.242590258844901628.hrs@allbsd.org> From: Mihir Luthra Date: Thu, 26 Sep 2019 18:09:17 +0530 Message-ID: Subject: Re: rpc.statd already ipv6 clean? To: Hiroki Sato Cc: freebsd-net , hrs@freebsd.org X-Rspamd-Queue-Id: 46fDyV0KFtz4CDv X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=fMkadTc6; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of luthramihir708@gmail.com designates 2607:f8b0:4864:20::a2a as permitted sender) smtp.mailfrom=luthramihir708@gmail.com X-Spamd-Result: default: False [-2.00 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TO_DN_SOME(0.00)[]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[a.2.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; IP_SCORE(0.00)[ip: (-9.73), ipnet: 2607:f8b0::/32(-2.60), asn: 15169(-2.18), country: US(-0.05)]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Sep 2019 12:39:31 -0000 > > > I think you should learn TI-RPC API first. The nettype specifies a > class of transport protocol, not address family. > > Thanks, I did some more research on TI-RPC today. In `statd.c` what I see is in `create_service()`/`complete_service()`, transport info is being fetched through getnetconfig(), which makes it listen on all transports. I guess its clean in `statd.c` but same can also be done in `procs.c`/`file.c`. Maybe trying all transports until it finds one which is connectionless? Apologies if I got something wrong, new to this topic. Also, while looking at the code, I think it always assumes ipv4 is always present. Like `127.0.0.1` is added to host list always. On ipv6 only machine this may fail. Kind Regards, Mihir