From nobody Thu Apr 25 21:31:17 2024 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a02:1d48:0:0:0:0:0 with SMTP id 69csp2216838jaj; Mon, 6 Sep 2021 00:58:17 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzxH46ih0W7MM98hOkvNVMEU6aT7yHBPXFkIIMsD3nwEHvzPi/LfHvzEzOsCmhwJyJmCnEM X-Received: by 2002:a17:90a:8a98:: with SMTP id x24mr12791943pjn.25.1630915097149; Mon, 06 Sep 2021 00:58:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630915097; cv=none; d=google.com; s=arc-20160816; b=Vyv33GYfK9pKpYxDkHzOnsd7OjOUmiqOZMzTdEeda2/96frUx/QznGw+Nc/nHfIoWy TxKrclEU0qL1Pr3eDaR1x0ybGzd+Oah+GcSKspYDmXJKwXyUhtEAc0sUPU+ek6/kbeJK V80MPmE3Dq5uD93JgF5gAYV61QR2hB/evw0C5iLgRQbZ0KLs4Mxy1rv1hX9aJWKJNAPP 69lyjxUgRxdkwjQ67r3KBWQkU9SMhhBc2czbPxiO6//3cw0e6nxF1fgotYpoLaydH8bt mOmZXNCC3jtTdrI3ojgXAtDyGHTuSSA98iZBwsrugAInb8poY/b7eRvL86ofy688mG9W axRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=WVrvNqfHSWjrH1vjE2sONj5OfBOz/ynCKbMy/GXaOtM=; b=wZxldQ5jvKnnHpf8+WInTYQNqkT6l+efTipx46vTbbQ1jeLG1HEHhQeGWffVxiTxpQ UvuDzuQg16eBUWDZjnoS54urmabyuC8Bc0WGPya039lD89JVTe94dfGxWAIDzpbDCafV 6PW7kOf3iiK5CP8s7rNs5uLuAqC5dYiP9febq1ryOqZQCxj67PwHjdCcV4bBrMRXjqj7 cAqdnXR/b5+b4HeozWW5MQjnVashYNgbT0L1WLIvY06qB0Cnt6em+I4cF/NIAOQ7tsCk X/tICAWQzDudTKhz48uJdapfi/Xn8isvLoUkjVP8llJ/kFlZnFm+NF7up7efljrG+Hta 9rqg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=mCiKn5JJ; spf=pass (google.com: domain of mptcp+bounces-1855-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1:3600::1 as permitted sender) smtp.mailfrom="mptcp+bounces-1855-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from ewr.edge.kernel.org (ewr.edge.kernel.org. [2604:1380:1:3600::1]) by mx.google.com with ESMTPS id n2si8955680pgb.393.2021.09.06.00.58.16 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Sep 2021 00:58:17 -0700 (PDT) Received-SPF: pass (google.com: domain of mptcp+bounces-1855-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1:3600::1 as permitted sender) client-ip=2604:1380:1:3600::1; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=mCiKn5JJ; spf=pass (google.com: domain of mptcp+bounces-1855-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1:3600::1 as permitted sender) smtp.mailfrom="mptcp+bounces-1855-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ewr.edge.kernel.org (Postfix) with ESMTPS id 602521C0DCD for ; Mon, 6 Sep 2021 07:58:16 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 97EAB3FC0; Mon, 6 Sep 2021 07:58:15 +0000 (UTC) X-Original-To: mptcp@lists.linux.dev Received: from mail-pg1-f172.google.com (mail-pg1-f172.google.com [209.85.215.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A63212FB6 for ; Mon, 6 Sep 2021 07:58:14 +0000 (UTC) Received: by mail-pg1-f172.google.com with SMTP id g184so5986263pgc.6 for ; Mon, 06 Sep 2021 00:58:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WVrvNqfHSWjrH1vjE2sONj5OfBOz/ynCKbMy/GXaOtM=; b=mCiKn5JJhAu/K71Nh5PQZ67S46WaJ7jzhgvDimIWq7iYRu1mmDhKGt3dMvB3qxsgrr F8FQ01jVIWSHYaKt05XWBo6weR6JZG6bcrnUpS042j/ThFf3hnpem1IFhZDwvBdlryBt e1YDSnpVCttAswQt6h7kmL3S0RUJEJTkApGFh2M5qvBcPNX8q8qFTLjzFFrDgrhK390s Il2hkH3i4nA0yV4kPKG3nIIavhyoB9xygn8q6JjUREv1OdIr1HwOtZJAdpmfHmEuBlqg 7+LN7yL8K9IdJbHVR9HpfQ8832+f6CdDEu6/WFfcW0TUTRpFsjuzNK1eEB7iZHi4ghb5 Bguw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=WVrvNqfHSWjrH1vjE2sONj5OfBOz/ynCKbMy/GXaOtM=; b=FYH6hBGeOLrmWkdE2gh3cRBM15wP8W/LYA0C40nwbSYbFWRO9424CB+de5BUwbEyvo i9MRhszq4DVk9IZlzzmOL5jzG9vPqSwD9BYFGx7xdu3eUHgDq/K1iSeICvqFTqqvJY0U ngvziAeP+91b43CTEONz56B183T0EVo2MjfvZYV0i0dn6rt9CMEZwbLaJYFf9cUsYZn5 vuLofc2g6BrIvCsChDsjxpV6eLX54NVZ/0/ifNzcmk2uAw5sEzPy3qcmC2wQuxaAio8U oGxWMpACjMpGqLzboEpo5jpXVym9VDNnTjJb1kkSWaKxUg5cfAtUBojFUKFDzbBwhel/ 2oXQ== X-Gm-Message-State: AOAM5338848I4ODP08SuYpUJufpat+K3idFc0sdXhXvjQV5WcGBD9vWX eLNXa7jSRZpkvQRAi5iPspZEwYh3l58= X-Received: by 2002:a05:6a00:1245:b029:30f:2098:fcf4 with SMTP id u5-20020a056a001245b029030f2098fcf4mr10914653pfi.66.1630915094074; Mon, 06 Sep 2021 00:58:14 -0700 (PDT) Received: from MiBook.. ([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:13 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 1/6] mptcp: add noncontiguous flag Date: Mon, 6 Sep 2021 15:58:02 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch added a "noncontiguous" flag in the msk to track whether the data is contiguous on a subflow. When retransmission happens, we could set this flag, and once all retransmissions are DATA_ACK'd that flag could be cleared. When a bad checksum is detected and a single contiguous subflow is in use, don't send RST + MP_FAIL, send data_ack + MP_FAIL instead. Signed-off-by: Geliang Tang --- net/mptcp/protocol.c | 13 ++++++++++--- net/mptcp/protocol.h | 1 + net/mptcp/subflow.c | 12 ++++++------ 3 files changed, 17 insertions(+), 9 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 2a525c7ae920..553082eb1206 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1098,8 +1098,10 @@ static void __mptcp_clean_una(struct sock *sk) } =20 /* all retransmitted data acked, recovery completed */ - if (unlikely(msk->recovery) && after64(msk->snd_una, msk->recovery_snd_nx= t)) + if (unlikely(msk->recovery) && after64(msk->snd_una, msk->recovery_snd_nx= t)) { msk->recovery =3D false; + WRITE_ONCE(msk->noncontiguous, false); + } =20 out: if (cleaned && tcp_under_memory_pressure(sk)) @@ -2502,8 +2504,10 @@ static void mptcp_worker(struct work_struct *work) if (test_and_clear_bit(MPTCP_WORK_CLOSE_SUBFLOW, &msk->flags)) __mptcp_close_subflow(msk); =20 - if (test_and_clear_bit(MPTCP_WORK_RTX, &msk->flags)) + if (test_and_clear_bit(MPTCP_WORK_RTX, &msk->flags)) { + WRITE_ONCE(msk->noncontiguous, true); __mptcp_retrans(sk); + } =20 unlock: release_sock(sk); @@ -2872,6 +2876,7 @@ struct sock *mptcp_sk_clone(const struct sock *sk, WRITE_ONCE(msk->fully_established, false); if (mp_opt->suboptions & OPTION_MPTCP_CSUMREQD) WRITE_ONCE(msk->csum_enabled, true); + WRITE_ONCE(msk->noncontiguous, false); =20 msk->write_seq =3D subflow_req->idsn + 1; msk->snd_nxt =3D msk->write_seq; @@ -3040,8 +3045,10 @@ static void mptcp_release_cb(struct sock *sk) spin_unlock_bh(&sk->sk_lock.slock); if (flags & BIT(MPTCP_PUSH_PENDING)) __mptcp_push_pending(sk, 0); - if (flags & BIT(MPTCP_RETRANSMIT)) + if (flags & BIT(MPTCP_RETRANSMIT)) { + WRITE_ONCE(mptcp_sk(sk)->noncontiguous, true); __mptcp_retrans(sk); + } =20 cond_resched(); spin_lock_bh(&sk->sk_lock.slock); diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 99a23fff7b03..29322e09e7d6 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -249,6 +249,7 @@ struct mptcp_sock { bool rcv_fastclose; bool use_64bit_ack; /* Set when we received a 64-bit DSN */ bool csum_enabled; + bool noncontiguous; spinlock_t join_list_lock; struct work_struct work; struct sk_buff *ooo_last_skb; diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 1de7ce883c37..951aafb6021e 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -1166,15 +1166,15 @@ static bool subflow_check_data_avail(struct sock *s= sk) fallback: /* RFC 8684 section 3.7. */ if (subflow->send_mp_fail) { - if (mptcp_has_another_subflow(ssk)) { + if (mptcp_has_another_subflow(ssk) || READ_ONCE(msk->noncontiguous)) { + ssk->sk_err =3D EBADMSG; + tcp_set_state(ssk, TCP_CLOSE); + subflow->reset_transient =3D 0; + subflow->reset_reason =3D MPTCP_RST_EMIDDLEBOX; + tcp_send_active_reset(ssk, GFP_ATOMIC); while ((skb =3D skb_peek(&ssk->sk_receive_queue))) sk_eat_skb(ssk, skb); } - ssk->sk_err =3D EBADMSG; - tcp_set_state(ssk, TCP_CLOSE); - subflow->reset_transient =3D 0; - subflow->reset_reason =3D MPTCP_RST_EMIDDLEBOX; - tcp_send_active_reset(ssk, GFP_ATOMIC); WRITE_ONCE(subflow->data_avail, 0); return true; } --=20 2.31.1 From nobody Thu Apr 25 21:31:17 2024 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a02:1d48:0:0:0:0:0 with SMTP id 69csp2216848jaj; Mon, 6 Sep 2021 00:58:19 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyf6X351I67enhmEjh7iBu+GkSVDMgjLuVQRa6d5kLEE8tRJIL5/y3RhSFcWJCcSaETRZGx X-Received: by 2002:a05:6a00:c8a:b0:3fb:dbcc:e1d7 with SMTP id a10-20020a056a000c8a00b003fbdbcce1d7mr10834935pfv.51.1630915098872; Mon, 06 Sep 2021 00:58:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630915098; cv=none; d=google.com; s=arc-20160816; b=kjIQZhy4eJhK0NmThdZI0rXE9NBunXNj7H+/GOS0UsEeybkp0A//2ONZoZHT8nDhGo hfpOpy/e6WAEVgYKzyqmFFCFT59FAqbuzHolTfpEu5RjH9Xd3qcfxrcjSyAjJ6fGqdRo g+yx+upiEbp5LE7wb1/cPxb8h57ZrQYitQkhPwxlDuJK1IDlxInTDSmVOqfg6W8s+4K1 tfcggBhKT8DJ5DiJ+R1HSN94ElyakyJ/H79ZTRWzNPDXryjkcBo9s3VulVAqG84oTDTh BjrcjapIk8OGLzmj8ksv/Oo+vO/9WDERxK/fBX144HWy0310jvZM4VFMKzB1nHtodk0A gyZQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; 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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:15 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 2/6] mptcp: infinite mapping sending Date: Mon, 6 Sep 2021 15:58:03 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch added the infinite mapping sending logic. Added a new flag snd_infinite_mapping_enable in mptcp_sock. Set it true when a single contiguous subflow is in use in mptcp_pm_mp_fail_received. In mptcp_sendmsg_frag, if this flag is true, call the new function mptcp_update_infinite_mapping to set the infinite mapping. Added a new flag infinite_mapping_snd in struct mptcp_subflow_context. In mptcp_write_options, if the infinite mapping has been sent, set this flag. In subflow_check_data_avail, if the infinite_mapping_snd flag is set, don't reset this subflow. Signed-off-by: Geliang Tang --- net/mptcp/options.c | 8 ++++++++ net/mptcp/pm.c | 6 ++++++ net/mptcp/protocol.c | 15 +++++++++++++++ net/mptcp/protocol.h | 2 ++ net/mptcp/subflow.c | 4 +++- 5 files changed, 34 insertions(+), 1 deletion(-) diff --git a/net/mptcp/options.c b/net/mptcp/options.c index 422f4acfb3e6..09768cacd2a8 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -1325,6 +1325,14 @@ void mptcp_write_options(__be32 *ptr, const struct t= cp_sock *tp, TCPOPT_NOP << 8 | TCPOPT_NOP, ptr); } } + + if (mpext->data_len =3D=3D 0) { + const struct sock *ssk =3D (const struct sock *)tp; + struct mptcp_subflow_context *subflow; + + subflow =3D mptcp_subflow_ctx(ssk); + subflow->infinite_mapping_snd =3D 1; + } } else if (OPTIONS_MPTCP_MPC & opts->suboptions) { u8 len, flag =3D MPTCP_CAP_HMAC_SHA256; =20 diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 6ab386ff3294..2830adf64f79 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -251,7 +251,13 @@ void mptcp_pm_mp_prio_received(struct sock *sk, u8 bku= p) =20 void mptcp_pm_mp_fail_received(struct sock *sk, u64 fail_seq) { + struct mptcp_subflow_context *subflow =3D mptcp_subflow_ctx(sk); + struct mptcp_sock *msk =3D mptcp_sk(subflow->conn); + pr_debug("fail_seq=3D%llu", fail_seq); + + if (!mptcp_has_another_subflow(sk) && !READ_ONCE(msk->noncontiguous)) + WRITE_ONCE(msk->snd_infinite_mapping_enable, true); } =20 /* path manager helpers */ diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 553082eb1206..3082eb367df2 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1274,6 +1274,18 @@ static void mptcp_update_data_checksum(struct sk_buf= f *skb, int added) mpext->csum =3D csum_fold(csum_block_add(csum, skb_checksum(skb, offset, = added, 0), offset)); } =20 +static void mptcp_update_infinite_mapping(struct mptcp_sock *msk, struct m= ptcp_ext *mpext) +{ + if (!mpext) + return; + + mpext->data_len =3D 0; + if (READ_ONCE(msk->csum_enabled)) + mpext->csum =3D 0; + + WRITE_ONCE(msk->snd_infinite_mapping_enable, false); +} + static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk, struct mptcp_data_frag *dfrag, struct mptcp_sendmsg_info *info) @@ -1406,6 +1418,8 @@ static int mptcp_sendmsg_frag(struct sock *sk, struct= sock *ssk, out: if (READ_ONCE(msk->csum_enabled)) mptcp_update_data_checksum(skb, copy); + if (READ_ONCE(msk->snd_infinite_mapping_enable)) + mptcp_update_infinite_mapping(msk, mpext); mptcp_subflow_ctx(ssk)->rel_write_seq +=3D copy; return copy; } @@ -2877,6 +2891,7 @@ struct sock *mptcp_sk_clone(const struct sock *sk, if (mp_opt->suboptions & OPTION_MPTCP_CSUMREQD) WRITE_ONCE(msk->csum_enabled, true); WRITE_ONCE(msk->noncontiguous, false); + WRITE_ONCE(msk->snd_infinite_mapping_enable, false); =20 msk->write_seq =3D subflow_req->idsn + 1; msk->snd_nxt =3D msk->write_seq; diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 29322e09e7d6..a058af61cf7c 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -250,6 +250,7 @@ struct mptcp_sock { bool use_64bit_ack; /* Set when we received a 64-bit DSN */ bool csum_enabled; bool noncontiguous; + bool snd_infinite_mapping_enable; spinlock_t join_list_lock; struct work_struct work; struct sk_buff *ooo_last_skb; @@ -433,6 +434,7 @@ struct mptcp_subflow_context { backup : 1, send_mp_prio : 1, send_mp_fail : 1, + infinite_mapping_snd : 1, rx_eof : 1, can_ack : 1, /* only after processing the remote a key */ disposable : 1, /* ctx can be free at ulp release time */ diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 951aafb6021e..87f42ba7c09c 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -1179,7 +1179,9 @@ static bool subflow_check_data_avail(struct sock *ssk) return true; 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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:17 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 3/6] mptcp: infinite mapping receiving Date: Mon, 6 Sep 2021 15:58:04 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch added the infinite mapping receiving logic. Added a new struct member infinite_mapping_rcv in struct mptcp_subflow_context, set it true when the infinite mapping is received. In subflow_check_data_avail, if the infinite_mapping_rcv flag is set, don't reset this subflow. Signed-off-by: Geliang Tang --- net/mptcp/protocol.h | 1 + net/mptcp/subflow.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index a058af61cf7c..b92b02c2ba61 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -435,6 +435,7 @@ struct mptcp_subflow_context { send_mp_prio : 1, send_mp_fail : 1, infinite_mapping_snd : 1, + infinite_mapping_rcv : 1, rx_eof : 1, can_ack : 1, /* only after processing the remote a key */ disposable : 1, /* ctx can be free at ulp release time */ diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 87f42ba7c09c..e7ede61c712a 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -968,6 +968,7 @@ static enum mapping_status get_mapping_status(struct so= ck *ssk, data_len =3D mpext->data_len; if (data_len =3D=3D 0) { MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_INFINITEMAPRX); + subflow->infinite_mapping_rcv =3D 1; return MAPPING_INVALID; } =20 @@ -1181,7 +1182,7 @@ static bool subflow_check_data_avail(struct sock *ssk) =20 if (subflow->mp_join || (subflow->fully_established && - !subflow->infinite_mapping_snd)) { + !(subflow->infinite_mapping_snd || subflow->infinite_mapping_rcv))) { /* fatal protocol error, close the socket. * subflow_error_report() will introduce the appropriate barriers */ @@ -1201,6 +1202,7 @@ static bool subflow_check_data_avail(struct sock *ssk) subflow->map_data_len =3D skb->len; subflow->map_subflow_seq =3D tcp_sk(ssk)->copied_seq - subflow->ssn_offse= t; WRITE_ONCE(subflow->data_avail, MPTCP_SUBFLOW_DATA_AVAIL); + subflow->infinite_mapping_rcv =3D 0; return true; } =20 --=20 2.31.1 From nobody Thu Apr 25 21:31:17 2024 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a02:1d48:0:0:0:0:0 with SMTP id 69csp2216874jaj; Mon, 6 Sep 2021 00:58:21 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyUFzLmH23ehyQbUd76pmSCI5YaaebW2bf9Is1D2ZyoiSwzzLa0iiIgmlORIMUI3uJXw1+b X-Received: by 2002:a17:902:650b:b0:13a:130c:a964 with SMTP id b11-20020a170902650b00b0013a130ca964mr8080418plk.68.1630915101515; Mon, 06 Sep 2021 00:58:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630915101; cv=none; d=google.com; s=arc-20160816; b=pnaYsWJaWdyO78MfovpLzY8Kjn9XJVV5WyqEeK0ukLMGlkvcDIzv9deIFWevp5B3ut nuW3549/vgCJrNiSNIvMln2+ausu7T7fnhDff9LZ1ZlMyJ8VcVKzVMVidfMk83ECjaXq DPPr/LGO6IbLYjeDSWxJnSAe8QoLGtk7uJaTBP5SXyVqBrffuNPNIDx01tObboR+5Yuc u/mPqgziM60XGwoA2tCDbnEgfKdpIPyS4dkzYjTSWQRjHkm3Jziu+Ti8nUvGAId463N+ ggnOLotXLTbj5mKUMC0rdLDo42mXoXfNAFoxzRZ7MYlr46j5GKeT5TEyWUq/TTk+QXfT 6sTA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=tbR46yEwetFmr74l5qKWaXcQ1UG6B9A96OmGxbAsp+o=; b=oqW7HAinKcFU+d0artpMvga8UPo3G1si0eIrEs9hK0eeB++GyiZ6Xx9+5egzIuHTRq 0HC76EMDcysgMoQOe2WzJhJz2LVlFTruIgmL1Ye4SZI8HEXNUa0s2rJdjPFsaKCYZEss N+0aFdZTh5vm/R/XDvC+peIa8lHJdcxt/src5/mB5Om6YuwUO67dTTA/R3nry3B95JPp Q2Ip/aYKDWc62KpzoN/divhvVbNdfEUTCybDVYuYShmSz4e5Ggskdg++rEtjNkXqcW2T /OYZa3MRYwOaKTL3r9u4U7j2ky1kd5X0ohyggCpZtbsRXIExsFXkpYv0fKAh6vy00ClL oWwQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=EbAXcCQy; spf=pass (google.com: domain of mptcp+bounces-1858-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1000:8100::1 as permitted sender) smtp.mailfrom="mptcp+bounces-1858-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from sjc.edge.kernel.org (sjc.edge.kernel.org. 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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:18 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 4/6] mptcp: add a mib for the infinite mapping sending Date: Mon, 6 Sep 2021 15:58:05 +0800 Message-Id: <792d3d4c024442df1eeac2d24e200ec34ac47cbd.1630914699.git.geliangtang@xiaomi.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch added a new mib named MPTCP_MIB_INFINITEMAPTX, increase it when a infinite mapping has been sent out. Signed-off-by: Geliang Tang --- net/mptcp/mib.c | 1 + net/mptcp/mib.h | 1 + net/mptcp/protocol.c | 3 +++ 3 files changed, 5 insertions(+) diff --git a/net/mptcp/mib.c b/net/mptcp/mib.c index b21ff9be04c6..ab55afdcae22 100644 --- a/net/mptcp/mib.c +++ b/net/mptcp/mib.c @@ -24,6 +24,7 @@ static const struct snmp_mib mptcp_snmp_list[] =3D { SNMP_MIB_ITEM("MPJoinAckRx", MPTCP_MIB_JOINACKRX), SNMP_MIB_ITEM("MPJoinAckHMacFailure", MPTCP_MIB_JOINACKMAC), SNMP_MIB_ITEM("DSSNotMatching", MPTCP_MIB_DSSNOMATCH), + SNMP_MIB_ITEM("InfiniteMapTx", MPTCP_MIB_INFINITEMAPTX), SNMP_MIB_ITEM("InfiniteMapRx", MPTCP_MIB_INFINITEMAPRX), SNMP_MIB_ITEM("DSSNoMatchTCP", MPTCP_MIB_DSSTCPMISMATCH), SNMP_MIB_ITEM("DataCsumErr", MPTCP_MIB_DATACSUMERR), diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h index ecd3d8b117e0..7901f1338d15 100644 --- a/net/mptcp/mib.h +++ b/net/mptcp/mib.h @@ -17,6 +17,7 @@ enum linux_mptcp_mib_field { MPTCP_MIB_JOINACKRX, /* Received an ACK + MP_JOIN */ MPTCP_MIB_JOINACKMAC, /* HMAC was wrong on ACK + MP_JOIN */ MPTCP_MIB_DSSNOMATCH, /* Received a new mapping that did not match the p= revious one */ + MPTCP_MIB_INFINITEMAPTX, /* Sent an infinite mapping */ MPTCP_MIB_INFINITEMAPRX, /* Received an infinite mapping */ MPTCP_MIB_DSSTCPMISMATCH, /* DSS-mapping did not map with TCP's sequence = numbers */ MPTCP_MIB_DATACSUMERR, /* The data checksum fail */ diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 3082eb367df2..b14023301975 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1276,6 +1276,8 @@ static void mptcp_update_data_checksum(struct sk_buff= *skb, int added) =20 static void mptcp_update_infinite_mapping(struct mptcp_sock *msk, struct m= ptcp_ext *mpext) { + struct sock *sk =3D (struct sock *)msk; + if (!mpext) return; =20 @@ -1283,6 +1285,7 @@ static void mptcp_update_infinite_mapping(struct mptc= p_sock *msk, struct mptcp_e if (READ_ONCE(msk->csum_enabled)) mpext->csum =3D 0; =20 + MPTCP_INC_STATS(sock_net(sk), MPTCP_MIB_INFINITEMAPTX); WRITE_ONCE(msk->snd_infinite_mapping_enable, false); } =20 --=20 2.31.1 From nobody Thu Apr 25 21:31:17 2024 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a02:1d48:0:0:0:0:0 with SMTP id 69csp2216883jaj; Mon, 6 Sep 2021 00:58:23 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx28vHgciM1D5KtTr4y6cbtiFX+B9AISxT+ndorPF1XCN7KX6oeTfszb56jGesfPiuM5HBD X-Received: by 2002:a62:db44:0:b0:415:a9d7:4978 with SMTP id f65-20020a62db44000000b00415a9d74978mr5068358pfg.80.1630915103437; Mon, 06 Sep 2021 00:58:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630915103; cv=none; d=google.com; s=arc-20160816; b=Ze+XqEd9aVTL2WnCIAxLKzmI6bGQwkM6esXmlvLmXZlT7l1UM8rAEM00BPcwOWdL93 PTeJ9KoePxESI3N0E7PMaxsDPoQjbhoIr4ixHD4+O4zpMwO4vag4/oRveN0cnY3x1aYS TIqKJEh0VBRCubFt7Hjf2WRTiFQP6JMvKgpv65XKF53iUuyzznGdWaCj/8mgoZGp4ZaO F3MMP7QDCnwhA68h7gGKlLKl0BttWper6/EGUedwgm8B2CJZLw/AOzFB4OIw95afyndH sysmATcRQ82sPj4zN4E3JUJmezxsM9/I/H8Cb06s2aob4K9/9O76xmGkEwJqhVP9ZPg5 l1hg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=KYx3YyFoHwDg4nx5uFvbO2npW+beq7yD9VEjzpnMdSw=; b=tXOKB67I6B3AYjVOVqKBAT9Jw/+FU4/Xm4oUuxi0mmWCs4GW1hPnCiBpRM0scxvEHp QZBdCxy3WO72YG/TeGFFGgtXtVnnuhIVRgfZEFws8mcKoeNJC8DfutBtHz/lxhtU+smA KBAaWs4T0TL1PuLGUSlGLn7xn5APe74xDxmRUdKBZFVQlvdoOwRvFhY2uaPi8qfWZ8dl 7PuAvdyGD4cIj6vDz6V2TpEizM0GWWK0BTidIzdYOdJK4uem8xlm9fajyzdS+APnZxTs uUo2bBXkRw+3b7w3XR62/FfZwyiX4N2qhq2hNc+DCtZge0XqgAXdg4pPQh46V/ptVBWK DxGA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=bOZin4pP; spf=pass (google.com: domain of mptcp+bounces-1859-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1000:8100::1 as permitted sender) smtp.mailfrom="mptcp+bounces-1859-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from sjc.edge.kernel.org (sjc.edge.kernel.org. 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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:20 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 5/6] selftests: mptcp: add infinite map mibs check Date: Mon, 6 Sep 2021 15:58:06 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang This patch added a function chk_infi_nr to check the mibs for the infinite mapping. Signed-off-by: Geliang Tang --- .../testing/selftests/net/mptcp/mptcp_join.sh | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testin= g/selftests/net/mptcp/mptcp_join.sh index 255793c5ac4f..fe0c8f3164a7 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -615,6 +615,43 @@ chk_fail_nr() fi } =20 +chk_infi_nr() +{ + local mp_infi_nr_tx=3D$1 + local mp_infi_nr_rx=3D$2 + local count + local dump_stats + + printf "%-39s %s" " " "itx" + count=3D`ip netns exec $ns1 nstat -as | grep InfiniteMapTx | awk '{print = $2}'` + [ -z "$count" ] && count=3D0 + if [ "$count" !=3D "$mp_infi_nr_tx" ]; then + echo "[fail] got $count infinite map[s] TX expected $mp_infi_nr_tx" + ret=3D1 + dump_stats=3D1 + else + echo -n "[ ok ]" + fi + + echo -n " - irx " + count=3D`ip netns exec $ns2 nstat -as | grep InfiniteMapRx | awk '{print = $2}'` + [ -z "$count" ] && count=3D0 + if [ "$count" !=3D "$mp_infi_nr_rx" ]; then + echo "[fail] got $count infinite map[s] RX expected $mp_infi_nr_rx" + ret=3D1 + dump_stats=3D1 + else + echo "[ ok ]" + fi + + if [ "${dump_stats}" =3D 1 ]; then + echo Server ns stats + ip netns exec $ns1 nstat -as | grep MPTcp + echo Client ns stats + ip netns exec $ns2 nstat -as | grep MPTcp + fi +} + chk_join_nr() { local msg=3D"$1" @@ -665,6 +702,7 @@ chk_join_nr() if [ $checksum -eq 1 ]; then chk_csum_nr chk_fail_nr 0 0 + chk_infi_nr 0 0 fi } =20 --=20 2.31.1 From nobody Thu Apr 25 21:31:17 2024 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a02:1d48:0:0:0:0:0 with SMTP id 69csp2216895jaj; Mon, 6 Sep 2021 00:58:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwcVeA9aL6ZnHEuN8H0ID+aQ+EablJvYSODI/qp0qfJcxKXfwQwo6oTJcv/Ua67j+RG1wcy X-Received: by 2002:a65:41c6:: with SMTP id b6mr11185855pgq.206.1630915105729; Mon, 06 Sep 2021 00:58:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630915105; cv=none; d=google.com; s=arc-20160816; b=Hxye8YU2rWYjSAOCml+7ih5tiju9qPPKNCdfoXlrdoOwqhyynretKKRCHwO6E1G6kw jdIUxbi+GSITIDfXVUCc6spwOo/+/Sl+w/nCQdVzf/Mi04EGfV+jCBAK6BTS8rFsS+uk p297OSaMMWqgEN9yYJbeqc/wm07CP1wZAIp/jRe4dw7761LxRrR+LLueRfq3AztFzmcn 5ZSgxp8u7HgnPrlkQ6SAT034OSPlg7hnjd6gJkhhdqxPrksXqTVPeMOhDO3ENh29yxG0 qq6MZ1JrGo4wzG7f+lvRJJvBQv/1T3dnG7BLBhJUxFZGCUby8xhwfjkDt1kScDkmPowz unBA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=xPzm3L6Lm/y9qXXvjV3D7Ueebj6tefIxr2YJ9fwBYtI=; b=pQ1nqykRnuR6Lh/rvz3s8rjgqxZAQBKL2dyVaqGkZ0HI8pEA9PflIfMHsAN7AB7BDw z2yNonaclz3SbF2dm6vFoZQ/oeStnPiExtRqsUm6CO7w1fYsQ4N7ImmIybAaZPOtZhq5 3yiqWHLsxZ55z/rbPWeUySv6PngpagfUSa5pp6tkyDy9wQzT4t+AoPaJQjyTCB76VOCE lQGCOgZZDcL02zJlQwKgV4BFlHOZaBbJ9UXSggci+L2+VmhrrtGlDo17EoxAEzW4Hsja ElC2+xQrDepJd2x1Blp/GDmVe1RVLGgSjSMZl8/J6m9A6hiGYd4aU7t1BZfzdE4Yj1IK PzWQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=PvwJ1k4t; spf=pass (google.com: domain of mptcp+bounces-1860-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1:3600::1 as permitted sender) smtp.mailfrom="mptcp+bounces-1860-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from ewr.edge.kernel.org (ewr.edge.kernel.org. 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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id c24sm6895702pfd.145.2021.09.06.00.58.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Sep 2021 00:58:22 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next 6/6] DO-NOT-MERGE: mptcp: mp_fail test Date: Mon, 6 Sep 2021 15:58:07 +0800 Message-Id: <004a49d4abdafdd8965d6da07a702db1c310e5a1.1630914699.git.geliangtang@xiaomi.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang ./mptcp_join.sh -Cf Signed-off-by: Geliang Tang --- net/mptcp/protocol.c | 9 +++++++++ .../testing/selftests/net/mptcp/mptcp_join.sh | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index b14023301975..b7f344fbe322 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1289,6 +1289,8 @@ static void mptcp_update_infinite_mapping(struct mptc= p_sock *msk, struct mptcp_e WRITE_ONCE(msk->snd_infinite_mapping_enable, false); } =20 +static int j; + static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk, struct mptcp_data_frag *dfrag, struct mptcp_sendmsg_info *info) @@ -1423,6 +1425,13 @@ static int mptcp_sendmsg_frag(struct sock *sk, struc= t sock *ssk, mptcp_update_data_checksum(skb, copy); if (READ_ONCE(msk->snd_infinite_mapping_enable)) mptcp_update_infinite_mapping(msk, mpext); + + pr_debug("%s j=3D%d", __func__, j++); + if (j =3D=3D 20) + skb->data_len =3D 1; + if (j > 40) + j =3D 0; + mptcp_subflow_ctx(ssk)->rel_write_seq +=3D copy; return copy; } diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testin= g/selftests/net/mptcp/mptcp_join.sh index fe0c8f3164a7..38663f6373b8 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -977,6 +977,24 @@ chk_link_usage() =20 subflows_tests() { + # 1 subflow + reset + ip netns exec $ns1 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl limits 0 2 + run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow + chk_join_nr "1 subflow" 0 0 0 + + exit + + # multiple subflows + reset + ip netns exec $ns1 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow + ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow + run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow + chk_join_nr "multiple subflows" 2 2 2 + reset run_tests $ns1 $ns2 10.0.1.1 chk_join_nr "no JOIN" "0" "0" "0" --=20 2.31.1