From sacadmin Mon Oct 1 10:44:01 2007 Received: from sac.sfbay.sun.com (localhost [127.0.0.1]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l91Hi1lB018531; Mon, 1 Oct 2007 10:44:01 -0700 (PDT) Received: (from meem@localhost) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8/Submit) id l91Hi1Z4018528; Mon, 1 Oct 2007 10:44:01 -0700 (PDT) Date: Mon, 1 Oct 2007 10:44:01 -0700 (PDT) From: Peter Memishian Message-Id: <200710011744.l91Hi1Z4018528@sac.sfbay.sun.com> To: PSARC-record@sac.sfbay.sun.com Cc: clearview-discuss@opensolaris.org Subject: IP_XMIT_IF removal and IP_BOUND_IF rationalization [PSARC/2007/565 FastTrack timeout 10/10/2007] Status: RO Content-Length: 589 Template Version: @(#)sac_nextcase 1.64 07/13/07 SMI This information is Copyright 2007 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: IP_XMIT_IF removal and IP_BOUND_IF rationalization 1.2. Name of Document Author/Supplier: Author: Peter Memishian 1.3 Date of This Document: 01 October, 2007 4. Technical Description See the case directory for more detail 6. Resources and Schedule 6.4. Steering Committee requested information 6.4.1. Consolidation C-team Name: ON 6.5. ARC review type: FastTrack 6.6. ARC Exposure: open From peter.memishian@sun.com Mon Oct 1 10:51:13 2007 Received: from sunmail2sca.sfbay.sun.com (sunmail2sca [129.145.155.234]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l91HpDXE018776 for ; Mon, 1 Oct 2007 10:51:13 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail2sca.sfbay.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id l91Hm1Fs015408 for <@sunmail2sca.sfbay.sun.com:psarc-ext@sun.com>; Mon, 1 Oct 2007 10:48:04 -0700 (PDT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0JP800G19US3TL00@brm-avmta-1.central.sun.com> for psarc-ext@sun.com (ORCPT psarc-ext@sun.com); Mon, 01 Oct 2007 11:48:03 -0600 (MDT) Received: from dhcp-cbjs05-219-56.PRC.Sun.COM ([129.158.219.180]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0JP800429US047C0@brm-avmta-1.central.sun.com> for psarc-ext@sun.com (ORCPT psarc-ext@sun.com); Mon, 01 Oct 2007 11:48:01 -0600 (MDT) Received: from dhcp-cbjs05-219-56.PRC.Sun.COM (localhost [127.0.0.1]) by dhcp-cbjs05-219-56.PRC.Sun.COM (8.14.1+Sun/8.14.1) with ESMTP id l91HlnPC021344; Tue, 02 Oct 2007 01:47:50 +0800 (CST) Received: (from meem@localhost) by dhcp-cbjs05-219-56.PRC.Sun.COM (8.14.1+Sun/8.14.1/Submit) id l91HlnGn021341; Tue, 02 Oct 2007 01:47:49 +0800 (CST) Date: Tue, 02 Oct 2007 01:47:49 +0800 From: Peter Memishian Subject: PSARC/2007/565 IP_XMIT_IF removal and IP_BOUND_IF rationalization To: psarc-ext@sun.com Cc: clearview-discuss@opensolaris.org Reply-to: peter.memishian@sun.com Message-id: <18177.12997.26577.657983@dhcp-cbjs05-219-56.PRC.Sun.COM> MIME-version: 1.0 X-Mailer: VM 7.17 under 21.4 (patch 19) "Constant Variable" XEmacs Lucid Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT X-PMX-Version: 5.2.0.264296 X-Authentication-warning: dhcp-cbjs05-219-56.PRC.Sun.COM: meem set sender to peter.memishian@sun.com using -f Status: RO Content-Length: 3062 I'm sponsoring this case for myself. The timeout is set for 10/8/2007 (please disregard the earlier timeout of 10/10/2007). Introduction ------------ Over the years, the Solaris sockets API has accrued a variety of methods to send or receive packets over a specific IP interface. This case proposes to simplify and rationalize the landscape by removing IP_XMIT_IF and extending IP_BOUND_IF to match the behavior and commitment level of IPV6_BOUND_IF. Since both IP_XMIT_IF and IP_BOUND_IF have been Consolidation Private, patch binding is requested. Details ------- The IP_XMIT_IF socket option was originally introduced with Mobile IP (PSARC/2001/350) as a consolidation-private mechanism to force unicast and multicast traffic to be sent out a specific IP interface. While Mobile IP has been EOL'd (PSARC/2007/311), IP_XMIT_IF was not removed because our in.routed implementation was making use of it. However, we later realized that in.routed's needs would be better-suited by the IP_PKTINFO facility (PSARC/2006/466), allowing removal of IP_XMIT_IF. Google and koders.com reveal no external consumers of IP_XMIT_IF. The IP_BOUND_IF socket option was never ARC'd, but arrived in ON during IPv6 development, apparently to parallel the stable IPV6_BOUND_IF socket option documented in ip6(7P). However, for reasons lost in the sands of time, IP_BOUND_IF currently supports only broadcast traffic. We propose to rationalize IP_BOUND_IF to match IPV6_BOUND_IF by adding support for unicast and multicast traffic as well. IP_BOUND_IF will also be promoted to Committed and described in ip(7P). To summarize, the current landscape for sending/receiving packets over a specific IP interface is: UNICAST MULTICAST BROADCAST DIRECTION STICKY IP_XMIT_IF yes yes no send yes IP_BOUND_IF no no yes both yes IPV6_BOUND_IF yes yes n/a both yes IP_MULTICAST_IF no yes no send yes IPV6_MULTICAST_IF no yes no send yes IP_PKTINFO yes yes yes send no IPV6_PKTINFO yes yes n/a send no ... and our proposed landscape is: UNICAST MULTICAST BROADCAST DIRECTION STICKY IP_BOUND_IF yes yes yes both yes IPV6_BOUND_IF yes yes n/a both yes IP_MULTICAST_IF no yes no send yes IPV6_MULTICAST_IF no yes no send yes IP_PKTINFO yes yes yes send no IPV6_PKTINFO yes yes n/a send no [ Above, "DIRECTION" refers to the API's ability to limit whether a given socket will send or receive packets over a particular IP interface. IP_PKTINFO can identify what IP interface a given packet was received on, but does not prevent the reception. ] -- meem From glenn.skinner@sun.com Mon Oct 1 13:50:03 2007 Received: from sunmail4.Singapore.Sun.COM (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l91Ko2uF024566 for ; Mon, 1 Oct 2007 13:50:03 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail4.Singapore.Sun.COM (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id l91Kka6e018615; Tue, 2 Oct 2007 04:46:53 +0800 (SGT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0JP900E0D322ES00@nwk-avmta-2.sfbay.sun.com>; Mon, 01 Oct 2007 13:46:50 -0700 (PDT) Received: from ivrel.sfbay.sun.com ([129.146.74.76]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0JP900LEI32141F0@nwk-avmta-2.sfbay.sun.com>; Mon, 01 Oct 2007 13:46:49 -0700 (PDT) Received: from ivrel (ivrel [129.146.74.76]) by ivrel.sfbay.sun.com (8.13.8+Sun/8.13.8) with SMTP id l91KYrUf017824; Mon, 01 Oct 2007 13:34:53 -0700 (PDT) Date: Mon, 01 Oct 2007 13:34:53 -0700 (PDT) From: Glenn Skinner Subject: Re: 2007/565 [IP_XMIT_IF removal and IP_BOUND_IF rationalization] To: psarc-ext@sun.com, peter.memishian@sun.com Cc: clearview-discuss@opensolaris.org Reply-to: Glenn Skinner Message-id: <200710012034.l91KYrUf017824@ivrel.sfbay.sun.com> MIME-version: 1.0 X-Mailer: dtmail 1.3.0 @(#)CDE Version 1.6_36 SunOS 5.11 sun4u sparc Content-type: TEXT/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-MD5: UhWg841rvBQjKg8X77yu6Q== X-PMX-Version: 5.2.0.264296 Status: RO Content-Length: 854 Date: Tue, 02 Oct 2007 01:47:49 +0800 From: Peter Memishian Subject: PSARC/2007/565 IP_XMIT_IF removal and IP_BOUND_IF rationalization Introduction ------------ Over the years, the Solaris sockets API has accrued a variety of methods to send or receive packets over a specific IP interface. This case proposes to simplify and rationalize the landscape by removing IP_XMIT_IF and extending IP_BOUND_IF to match the behavior and commitment level of IPV6_BOUND_IF. Since both IP_XMIT_IF and IP_BOUND_IF have been Consolidation Private, patch binding is requested. Does IP_BOUND_IF remain at the Consolidation Private level, or do you propose to elevate it? (The materials don't make a definite statement, so this is a question of clarification.) -- Glenn From peter.memishian@sun.com Mon Oct 1 22:12:23 2007 Received: from sunmail4.Singapore.Sun.COM (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l925CMOA013791 for ; Mon, 1 Oct 2007 22:12:22 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail4.Singapore.Sun.COM (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id l92596Ba010892; Tue, 2 Oct 2007 13:09:10 +0800 (SGT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0JP900M0FQB6KU00@nwk-avmta-2.sfbay.sun.com>; Mon, 01 Oct 2007 22:09:06 -0700 (PDT) Received: from dhcp-cbjs05-219-56.PRC.Sun.COM ([129.158.219.180]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0JP9007TQQB5ZUE0@nwk-avmta-2.sfbay.sun.com>; Mon, 01 Oct 2007 22:09:06 -0700 (PDT) Received: from dhcp-cbjs05-219-56.PRC.Sun.COM (localhost [127.0.0.1]) by dhcp-cbjs05-219-56.PRC.Sun.COM (8.14.1+Sun/8.14.1) with ESMTP id l9258ovc022278; Tue, 02 Oct 2007 13:08:50 +0800 (CST) Received: (from meem@localhost) by dhcp-cbjs05-219-56.PRC.Sun.COM (8.14.1+Sun/8.14.1/Submit) id l9258nhN022275; Tue, 02 Oct 2007 13:08:49 +0800 (CST) Date: Tue, 02 Oct 2007 13:08:49 +0800 From: Peter Memishian Subject: Re: 2007/565 [IP_XMIT_IF removal and IP_BOUND_IF rationalization] In-reply-to: <200710012034.l91KYrUf017824@ivrel.sfbay.sun.com> To: Glenn Skinner Cc: psarc-ext@sun.com, peter.memishian@sun.com, clearview-discuss@opensolaris.org Reply-to: peter.memishian@sun.com Message-id: <18177.53857.199198.374967@dhcp-cbjs05-219-56.PRC.Sun.COM> MIME-version: 1.0 X-Mailer: VM 7.17 under 21.4 (patch 19) "Constant Variable" XEmacs Lucid Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT X-PMX-Version: 5.2.0.264296 References: <200710012034.l91KYrUf017824@ivrel.sfbay.sun.com> X-Authentication-warning: dhcp-cbjs05-219-56.PRC.Sun.COM: meem set sender to peter.memishian@sun.com using -f Status: RO Content-Length: 1154 > Date: Tue, 02 Oct 2007 01:47:49 +0800 > From: Peter Memishian > Subject: PSARC/2007/565 IP_XMIT_IF removal and IP_BOUND_IF > rationalization > > Introduction > ------------ > > Over the years, the Solaris sockets API has accrued a variety of > methods to send or receive packets over a specific IP interface. > This case proposes to simplify and rationalize the landscape by > removing IP_XMIT_IF and extending IP_BOUND_IF to match the > behavior and commitment level of IPV6_BOUND_IF. Since both > IP_XMIT_IF and IP_BOUND_IF have been Consolidation Private, patch > binding is requested. > > Does IP_BOUND_IF remain at the Consolidation Private level, or do you > propose to elevate it? It would be elevated to Committed for symmetry with IPV6_BOUND_IF. > (The materials don't make a definite statement, so this is a question > of clarification.) It's buried in the "Details" section (sorry): [ ... ] unicast and multicast traffic as well. IP_BOUND_IF will also be promoted to Committed and described in ip(7P). -- meem From meem@triplex.east.sun.com Mon Oct 8 14:55:04 2007 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l98Lt3Wx017526 for ; Mon, 8 Oct 2007 14:55:04 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail5.uk.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id l98LpgTr016042 for <@sunmail2sca.sfbay.sun.com:psarc-ext@sun.com>; Mon, 8 Oct 2007 22:51:48 +0100 (BST) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0JPM00N0D4QB4P00@nwk-avmta-2.sfbay.sun.com> for psarc-ext@sun.com (ORCPT psarc-ext@sun.com); Mon, 08 Oct 2007 14:51:47 -0700 (PDT) Received: from triplex.East.Sun.COM ([129.148.174.104]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0JPM00L2C4QANI20@nwk-avmta-2.sfbay.sun.com> for psarc-ext@sun.com (ORCPT psarc-ext@sun.com); Mon, 08 Oct 2007 14:51:46 -0700 (PDT) Received: from triplex.East.Sun.COM (localhost [127.0.0.1]) by triplex.East.Sun.COM (8.14.1+Sun/8.14.1) with ESMTP id l98LiGd5400761; Mon, 08 Oct 2007 17:44:16 -0400 (EDT) Received: (from meem@localhost) by triplex.East.Sun.COM (8.14.1+Sun/8.14.1/Submit) id l98LiGhF400758; Mon, 08 Oct 2007 17:44:16 -0400 (EDT) Date: Mon, 08 Oct 2007 17:44:16 -0400 From: Peter Memishian Subject: Re: PSARC/2007/565 IP_XMIT_IF removal and IP_BOUND_IF rationalization To: psarc-ext@Sun.COM Cc: clearview-discuss@opensolaris.org Message-id: <18186.42160.279595.728177@gargle.gargle.HOWL> MIME-version: 1.0 X-Mailer: VM 7.17 under 21.4 (patch 18) "Social Property" XEmacs Lucid Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT X-PMX-Version: 5.2.0.264296 Status: RO Content-Length: 64 This case was approved at last week's PSARC meeting. -- meem