From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3B87C31E5B for ; Mon, 17 Jun 2019 22:58:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7C282084A for ; Mon, 17 Jun 2019 22:58:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728734AbfFQW6z (ORCPT ); Mon, 17 Jun 2019 18:58:55 -0400 Received: from mga18.intel.com ([134.134.136.126]:10994 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726898AbfFQW6u (ORCPT ); Mon, 17 Jun 2019 18:58:50 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jun 2019 15:58:49 -0700 X-ExtLoop1: 1 Received: from mjmartin-nuc01.amr.corp.intel.com (HELO mjmartin-nuc01.sea.intel.com) ([10.241.98.42]) by orsmga002.jf.intel.com with ESMTP; 17 Jun 2019 15:58:48 -0700 From: Mat Martineau To: edumazet@google.com, netdev@vger.kernel.org Cc: Mat Martineau , cpaasch@apple.com, fw@strlen.de, pabeni@redhat.com, peter.krystad@linux.intel.com, dcaratti@redhat.com, matthieu.baerts@tessares.net Subject: [RFC PATCH net-next 00/33] Multipath TCP Date: Mon, 17 Jun 2019 15:57:35 -0700 Message-Id: <20190617225808.665-1-mathew.j.martineau@linux.intel.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The MPTCP upstreaming community has prepared a net-next RFC patch set for review. Clone/fetch: https://github.com/multipath-tcp/mptcp_net-next.git (tag: netdev-rfc) Browse: https://github.com/multipath-tcp/mptcp_net-next/tree/netdev-rfc With CONFIG_MPTCP=y, a socket created with IPPROTO_MPTCP will attempt to create an MPTCP connection but remains compatible with regular TCP. IPPROTO_TCP socket behavior is unchanged. This implementation makes use of ULP between the userspace-facing MPTCP socket and the set of in-kernel TCP sockets it controls. ULP has been extended for use with listening sockets. skb_ext is used to carry MPTCP metadata. The patch set includes a self-test to exercise MPTCP in various connection and routing scenarios. We have more work to do to reach the initial feature set for merging, notably: * Finish MP_JOIN work * Couple receive windows across sibling subflow TCP sockets as required by RFC 6824 * IPv6 * Limit subflow ULP visibility to kernel space Thank you for your review. You can find us at mptcp@lists.01.org and https://is.gd/mptcp_upstream Florian Westphal (6): mptcp: add mptcp_poll mptcp: add and use mptcp_subflow_hold mptcp: add basic kselftest program mptcp: selftests: switch to netns+veth based tests mptcp: accept: don't leak mptcp socket structure mptcp: switch sublist to mptcp socket lock protection Mat Martineau (11): tcp: Add MPTCP option number tcp: Define IPPROTO_MPTCP mptcp: Add MPTCP socket stubs tcp, ulp: Add clone operation to tcp_ulp_ops mptcp: Add MPTCP to skb extensions tcp: Prevent coalesce/collapse when skb has MPTCP extensions tcp: Export low-level TCP functions mptcp: Write MPTCP DSS headers to outgoing data packets mptcp: Implement MPTCP receive path mptcp: selftests: Add capture option tcp: Check for filled TCP option space before SACK Paolo Abeni (4): tcp: clean ext on tx recycle mptcp: use sk_page_frag() in sendmsg mptcp: sendmsg() do spool all the provided data mptcp: allow collapsing consecutive sendpages on the same substream Peter Krystad (12): mptcp: Handle MPTCP TCP options mptcp: Associate MPTCP context with TCP socket tcp: Expose tcp struct and routine for MPTCP mptcp: Handle MP_CAPABLE options for outgoing connections mptcp: Create SUBFLOW socket for incoming connections mptcp: Add key generation and token tree mptcp: Add shutdown() socket operation mptcp: Add setsockopt()/getsockopt() socket operations mptcp: Make connection_list a real list of subflows mptcp: Add path manager interface mptcp: Add ADD_ADDR handling mptcp: Add handling of incoming MP_JOIN requests include/linux/skbuff.h | 11 + include/linux/tcp.h | 51 + include/net/mptcp.h | 158 +++ include/net/sock.h | 1 + include/net/tcp.h | 20 + include/uapi/linux/in.h | 2 + net/Kconfig | 1 + net/Makefile | 1 + net/core/skbuff.c | 7 + net/ipv4/inet_connection_sock.c | 2 + net/ipv4/tcp.c | 8 +- net/ipv4/tcp_input.c | 25 +- net/ipv4/tcp_ipv4.c | 4 +- net/ipv4/tcp_minisocks.c | 6 + net/ipv4/tcp_output.c | 62 +- net/ipv4/tcp_ulp.c | 12 + net/mptcp/Kconfig | 11 + net/mptcp/Makefile | 4 + net/mptcp/crypto.c | 206 ++++ net/mptcp/options.c | 621 ++++++++++ net/mptcp/pm.c | 66 ++ net/mptcp/protocol.c | 1043 +++++++++++++++++ net/mptcp/protocol.h | 229 ++++ net/mptcp/subflow.c | 344 ++++++ net/mptcp/token.c | 373 ++++++ tools/include/uapi/linux/in.h | 2 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/mptcp/.gitignore | 1 + tools/testing/selftests/net/mptcp/Makefile | 11 + tools/testing/selftests/net/mptcp/config | 1 + .../selftests/net/mptcp/mptcp_connect.c | 408 +++++++ .../selftests/net/mptcp/mptcp_connect.sh | 271 +++++ 32 files changed, 3955 insertions(+), 8 deletions(-) create mode 100644 include/net/mptcp.h create mode 100644 net/mptcp/Kconfig create mode 100644 net/mptcp/Makefile create mode 100644 net/mptcp/crypto.c create mode 100644 net/mptcp/options.c create mode 100644 net/mptcp/pm.c create mode 100644 net/mptcp/protocol.c create mode 100644 net/mptcp/protocol.h create mode 100644 net/mptcp/subflow.c create mode 100644 net/mptcp/token.c create mode 100644 tools/testing/selftests/net/mptcp/.gitignore create mode 100644 tools/testing/selftests/net/mptcp/Makefile create mode 100644 tools/testing/selftests/net/mptcp/config create mode 100644 tools/testing/selftests/net/mptcp/mptcp_connect.c create mode 100755 tools/testing/selftests/net/mptcp/mptcp_connect.sh -- 2.22.0