From patchwork Thu Sep 10 00:50:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Wang X-Patchwork-Id: 1361139 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=Gni/co0W; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Bn2nh412mz9sTK for ; Thu, 10 Sep 2020 12:26:32 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730720AbgIJCYY (ORCPT ); Wed, 9 Sep 2020 22:24:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730560AbgIJCMD (ORCPT ); Wed, 9 Sep 2020 22:12:03 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 52CCCC06136F for ; Wed, 9 Sep 2020 17:51:23 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id q2so3343170pfc.17 for ; Wed, 09 Sep 2020 17:51:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=BzCqo5xgZBo5lkRUUpl4P1WsfLCH683BsG3jzL/NrGM=; b=Gni/co0WqpO+s/m3y9FvhRplSy1+BsWk5adqElUr58DADZInAY7WK+tpTVOyuUB7DX A4/lrcASJ/H9rY07YW+UOU3AGyUH32uChIv/YttoVP7kr3m7qse+3TbWQmo+dUD4A11f oKTanqAwIbNrShNNIyxfoxFuQ8XFx6MOAJ8bYPmth+uNHPdYIdtU1lUs4SPQVxRvP0fZ ZOmCoBgzH+sx8xo9N7qGne3byABD7mnlMiFfJBlH8DDsMo+JFz7K+90/tb7AkUl35Vx7 dHzqZjxPi5YaGZ0l+BP89xnrR4J/ZYgRSGciK8GoABTl5H4oFnz1oXAWagX52fuYLfgt mXKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=BzCqo5xgZBo5lkRUUpl4P1WsfLCH683BsG3jzL/NrGM=; b=DVBo2Bher4XFTMSojcBl9ecCepR56ROzxiWXA4Gs7EjKzeoeBL4C6KIchBfQuKvg3W iDuO929RqWu3mfyqp+tE/2vOva7Z/t43QdUcMiTqMW6X1s/yEpICIvOgo/93Fa3fw7SM kEWxpll33b8sPU1P5mjNgQr2Yy9Lpp/V9SkyDHf4bFpse29s9RgkBRhnMf2tEzQbgi/E anfRUF9v+jAIfgY/Kxx2zGEX2qCL8eGgz3Kzmub7j3tqvJ0KLeJpxu1Gz+WeXpOUfhg/ 17pW35Jy1r0koOLswXfbifgY0HgXW02WLAcg7byNScZpaKqg3eL4JDcYR9cL6ueQwbpC 5MNw== X-Gm-Message-State: AOAM530G1qvRHPgW+JgIL1msRFjCavXbWZwMSsdRfaAZB5gW9pTZd0G/ c12G90LjF3G8pSpEDmjmHWs3i216J3U= X-Google-Smtp-Source: ABdhPJz0yds0a/ctKWfOeZ+euQiljkEdGK3NBmqSqwghhWb9ja05AXg4kH7M1ILkJ0pQsHKzDCCowe6gZxs= X-Received: from weiwan.svl.corp.google.com ([2620:15c:2c4:201:1ea0:b8ff:fe75:cf08]) (user=weiwan job=sendgmr) by 2002:a63:43c7:: with SMTP id q190mr2403824pga.6.1599699082703; Wed, 09 Sep 2020 17:51:22 -0700 (PDT) Date: Wed, 9 Sep 2020 17:50:47 -0700 In-Reply-To: <20200910005048.4146399-1-weiwan@google.com> Message-Id: <20200910005048.4146399-3-weiwan@google.com> Mime-Version: 1.0 References: <20200910005048.4146399-1-weiwan@google.com> X-Mailer: git-send-email 2.28.0.618.gf4bc123cb7-goog Subject: [PATCH net-next 2/3] ip: pass tos into ip_build_and_send_pkt() From: Wei Wang To: "David S . Miller" , netdev@vger.kernel.org Cc: Eric Dumazet , Wei Wang Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This commit adds tos as a new passed in parameter to ip_build_and_send_pkt() which will be used in the later commit. This is a pure restructure and does not have any functional change. Signed-off-by: Wei Wang Signed-off-by: Eric Dumazet --- include/net/ip.h | 2 +- net/dccp/ipv4.c | 6 ++++-- net/ipv4/ip_output.c | 5 +++-- net/ipv4/tcp_ipv4.c | 3 ++- 4 files changed, 10 insertions(+), 6 deletions(-) diff --git a/include/net/ip.h b/include/net/ip.h index b09c48d862cc..0f72bf8c0cbf 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -151,7 +151,7 @@ int igmp_mc_init(void); int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk, __be32 saddr, __be32 daddr, - struct ip_options_rcu *opt); + struct ip_options_rcu *opt, u8 tos); int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev); void ip_list_rcv(struct list_head *head, struct packet_type *pt, diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index d8f3751a512b..bb3d70664dde 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -495,7 +495,8 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req rcu_read_lock(); err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr, ireq->ir_rmt_addr, - rcu_dereference(ireq->ireq_opt)); + rcu_dereference(ireq->ireq_opt), + inet_sk(sk)->tos); rcu_read_unlock(); err = net_xmit_eval(err); } @@ -537,7 +538,8 @@ static void dccp_v4_ctl_send_reset(const struct sock *sk, struct sk_buff *rxskb) local_bh_disable(); bh_lock_sock(ctl_sk); err = ip_build_and_send_pkt(skb, ctl_sk, - rxiph->daddr, rxiph->saddr, NULL); + rxiph->daddr, rxiph->saddr, NULL, + inet_sk(ctl_sk)->tos); bh_unlock_sock(ctl_sk); if (net_xmit_eval(err) == 0) { diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index b931d0b02e49..5fb536ff51f0 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -142,7 +142,8 @@ static inline int ip_select_ttl(struct inet_sock *inet, struct dst_entry *dst) * */ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk, - __be32 saddr, __be32 daddr, struct ip_options_rcu *opt) + __be32 saddr, __be32 daddr, struct ip_options_rcu *opt, + u8 tos) { struct inet_sock *inet = inet_sk(sk); struct rtable *rt = skb_rtable(skb); @@ -155,7 +156,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk, iph = ip_hdr(skb); iph->version = 4; iph->ihl = 5; - iph->tos = inet->tos; + iph->tos = tos; iph->ttl = ip_select_ttl(inet, &rt->dst); iph->daddr = (opt && opt->opt.srr ? opt->opt.faddr : daddr); iph->saddr = saddr; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index af27cfa9d8d3..c4c7ad4c8b5a 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -985,7 +985,8 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst, rcu_read_lock(); err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr, ireq->ir_rmt_addr, - rcu_dereference(ireq->ireq_opt)); + rcu_dereference(ireq->ireq_opt), + inet_sk(sk)->tos); rcu_read_unlock(); err = net_xmit_eval(err); }