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GET /api/patches/818033/?format=api
{ "id": 818033, "url": "http://patchwork.ozlabs.org/api/patches/818033/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170925032941.14586-5-tom@quantonium.net/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170925032941.14586-5-tom@quantonium.net>", "list_archive_url": null, "date": "2017-09-25T03:29:33", "name": "[v3,net-next,04/12] iptunnel: Generalize tunnel update pmtu", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "93397b0d1632a6baa65ec683772527985cbe8730", "submitter": { "id": 72064, "url": "http://patchwork.ozlabs.org/api/people/72064/?format=api", "name": "Tom Herbert", "email": "tom@quantonium.net" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/20170925032941.14586-5-tom@quantonium.net/mbox/", "series": [ { "id": 4865, "url": "http://patchwork.ozlabs.org/api/series/4865/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4865", "date": "2017-09-25T03:29:29", "name": "gtp: Additional feature support - Part I", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/4865/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/818033/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/818033/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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Sun, 24 Sep 2017 20:30:10 -0700 (PDT)", "from localhost.localdomain (c-73-162-13-107.hsd1.ca.comcast.net.\n\t[73.162.13.107]) by smtp.gmail.com with ESMTPSA id\n\tj2sm9112907pgn.26.2017.09.24.20.30.07\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tSun, 24 Sep 2017 20:30:07 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=quantonium-net.20150623.gappssmtp.com; s=20150623;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=oZKveqoes9D18SVp3KtzsiipJgaPIVkzyRcXKyWNBJ0=;\n\tb=u4NC64+NXVmy6qVxb9X5DCcWZ2ZLiWBQf02WSQu8TZBjKOV0D0liWK1QRlVp6GfsLZ\n\tB3xCUhnfPsxV7IQ+cRgf5rD9KzF7mPbGI20m2k0KTSkyXsFqOvQvavLCxPB6meW+Egwk\n\t4cV4kMXehL2Pqbu0azkMmIYm4F/NzL+ZFjvcxlY+9V/Ul0jBFP9pLAclEXPzI3gylHJk\n\ttamp25MloUaU9s3ntgwXVtGGbweqwdp/meWSURdSvxFmOZiPhQWc/l3PtoeEpH3/+4I1\n\tqEWZIlUDNQ7Zf8upU4kOza9cWB0M/105koBPSk9xDMPZkirEe1T3ylGE2nWkfkCxCvnI\n\tXGUw==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=oZKveqoes9D18SVp3KtzsiipJgaPIVkzyRcXKyWNBJ0=;\n\tb=T2Rn1XAiHZ5L+C5SxKvwEaQFrz3ugXJ3NPUd0WeJQ1xG2ykwrYe3JarE3eDvk+LQ6v\n\tfyAZ6oaRePagVg1xAOG52ElhDrYi2P0LGBsJxwezrg4FUTNve18OvQ9opypMGe+mErYi\n\t6cUm/rzZOGmrlbC2veZAZFR99vs0Vb6Ua+QPTqhTiGBYdO1zkYwlt65q5cpXeWAfr8e6\n\tfsKl9t5o4aKn8TerVqoW9dQkbd5OL4YTppPCBHfImvcjiRmq9qqmVhPKBEcmdVJ9COVe\n\txOQgnP6rzKibKdRzP8S+gH/g+qPYsIN31DVQmCHb6qQX0s4K35Pgg3G71w1st3zANcGZ\n\t3Pcw==", "X-Gm-Message-State": "AHPjjUjvpW70MRsnihuxMUd57nXgH67TNTHwY/Nx+mdrrfMkLUcu17x4\n\tg/FbmmzcLTujouVvms+SQw5yNZO5", "X-Google-Smtp-Source": "AOwi7QCnWKs/ObOBjmZ4+aPbqLQ8o1C6OtqMmENh/tLM/TSfsMOREYCH/SOIKIsvWZ7UlrwPXvOKtQ==", "X-Received": "by 10.99.126.87 with SMTP id o23mr6180129pgn.277.1506310209589; \n\tSun, 24 Sep 2017 20:30:09 -0700 (PDT)", "From": "Tom Herbert <tom@quantonium.net>", "To": "davem@davemloft.net", "Cc": "pablo@netfilter.org, laforge@gnumonks.org, aschultz@tpip.net,\n\tnetdev@vger.kernel.org, rohit@quantonium.net,\n\tTom Herbert <tom@quantonium.net>", "Subject": "[PATCH v3 net-next 04/12] iptunnel: Generalize tunnel update pmtu", "Date": "Sun, 24 Sep 2017 20:29:33 -0700", "Message-Id": "<20170925032941.14586-5-tom@quantonium.net>", "X-Mailer": "git-send-email 2.11.0", "In-Reply-To": "<20170925032941.14586-1-tom@quantonium.net>", "References": "<20170925032941.14586-1-tom@quantonium.net>", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "Add __iptunnel_update_pmtu exported function which does not take\nan iptunnel argument but instead includes the fields from the\niptunnel structure as arguments which are needed in the function.\n\niptunnel_update_pmtu was modified to call __iptunnel_update_pmtu.\n\nSigned-off-by: Tom Herbert <tom@quantonium.net>\n---\n include/net/ip_tunnels.h | 4 ++++\n net/ipv4/ip_tunnel.c | 30 ++++++++++++++++++++----------\n 2 files changed, 24 insertions(+), 10 deletions(-)", "diff": "diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h\nindex 9650efff33d7..880c9ea5b08c 100644\n--- a/include/net/ip_tunnels.h\n+++ b/include/net/ip_tunnels.h\n@@ -318,6 +318,10 @@ static inline struct rtable *ip_tunnel_get_route(struct net_device *dev,\n \t\t\t\t dst_cache, info, use_cache);\n }\n \n+int __iptunnel_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n+\t\t\t struct dst_entry *dst, __be16 df,\n+\t\t\t const struct iphdr *inner_iph, int hlen, u32 daddr);\n+\n struct ip_tunnel_encap_ops {\n \tsize_t (*encap_hlen)(struct ip_tunnel_encap *e);\n \tint (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e,\ndiff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c\nindex ea8f8bc0aaf9..31d6dc9f6859 100644\n--- a/net/ipv4/ip_tunnel.c\n+++ b/net/ipv4/ip_tunnel.c\n@@ -506,17 +506,16 @@ int ip_tunnel_encap_setup(struct ip_tunnel *t,\n }\n EXPORT_SYMBOL_GPL(ip_tunnel_encap_setup);\n \n-static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n-\t\t\t struct rtable *rt, __be16 df,\n-\t\t\t const struct iphdr *inner_iph)\n+int __iptunnel_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n+\t\t\t struct dst_entry *dst, __be16 df,\n+\t\t\t const struct iphdr *inner_iph, int hlen, u32 daddr)\n {\n-\tstruct ip_tunnel *tunnel = netdev_priv(dev);\n-\tint pkt_size = skb->len - tunnel->hlen - dev->hard_header_len;\n+\tint pkt_size = skb->len - hlen - dev->hard_header_len;\n \tint mtu;\n \n \tif (df)\n-\t\tmtu = dst_mtu(&rt->dst) - dev->hard_header_len\n-\t\t\t\t\t- sizeof(struct iphdr) - tunnel->hlen;\n+\t\tmtu = dst_mtu(dst) - dev->hard_header_len\n+\t\t\t\t - sizeof(struct iphdr) - hlen;\n \telse\n \t\tmtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;\n \n@@ -538,8 +537,7 @@ static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n \n \t\tif (rt6 && mtu < dst_mtu(skb_dst(skb)) &&\n \t\t\t mtu >= IPV6_MIN_MTU) {\n-\t\t\tif ((tunnel->parms.iph.daddr &&\n-\t\t\t !ipv4_is_multicast(tunnel->parms.iph.daddr)) ||\n+\t\t\tif ((daddr && !ipv4_is_multicast(daddr)) ||\n \t\t\t rt6->rt6i_dst.plen == 128) {\n \t\t\t\trt6->rt6i_flags |= RTF_MODIFIED;\n \t\t\t\tdst_metric_set(skb_dst(skb), RTAX_MTU, mtu);\n@@ -555,6 +553,17 @@ static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n #endif\n \treturn 0;\n }\n+EXPORT_SYMBOL(__iptunnel_update_pmtu);\n+\n+static int iptunnel_update_pmtu(struct net_device *dev, struct sk_buff *skb,\n+\t\t\t\tstruct rtable *rt, __be16 df,\n+\t\t\t\tconst struct iphdr *inner_iph)\n+{\n+\tstruct ip_tunnel *tunnel = netdev_priv(dev);\n+\n+\treturn __iptunnel_update_pmtu(dev, skb, &rt->dst, df, inner_iph,\n+\t\t\t\t tunnel->hlen, tunnel->parms.iph.daddr);\n+}\n \n void ip_md_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, u8 proto)\n {\n@@ -739,7 +748,8 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,\n \t\tgoto tx_error;\n \t}\n \n-\tif (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off, inner_iph)) {\n+\tif (iptunnel_update_pmtu(dev, skb, rt, tnl_params->frag_off,\n+\t\t\t\t inner_iph)) {\n \t\tip_rt_put(rt);\n \t\tgoto tx_error;\n \t}\n", "prefixes": [ "v3", "net-next", "04/12" ] }