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{
    "id": 807354,
    "url": "http://patchwork.ozlabs.org/api/patches/807354/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170829232711.1465-6-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": "",
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    },
    "msgid": "<20170829232711.1465-6-tom@quantonium.net>",
    "list_archive_url": null,
    "date": "2017-08-29T23:27:10",
    "name": "[v2,net-next,5/6] fou: Support flow dissection",
    "commit_ref": null,
    "pull_url": null,
    "state": "changes-requested",
    "archived": true,
    "hash": "93357d1b3e8f9b31e0b8db29b8de961e2e9ef5aa",
    "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/20170829232711.1465-6-tom@quantonium.net/mbox/",
    "series": [
        {
            "id": 503,
            "url": "http://patchwork.ozlabs.org/api/series/503/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=503",
            "date": "2017-08-29T23:27:05",
            "name": "flow_dissector: Protocol specific flow dissector offload",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/503/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/807354/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/807354/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
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        "X-Received": "by 10.98.41.68 with SMTP id p65mr1943657pfp.283.1504049263261;\n\tTue, 29 Aug 2017 16:27:43 -0700 (PDT)",
        "From": "Tom Herbert <tom@quantonium.net>",
        "To": "davem@davemloft.net",
        "Cc": "netdev@vger.kernel.org, Tom Herbert <tom@quantonium.net>",
        "Subject": "[PATCH v2 net-next 5/6] fou: Support flow dissection",
        "Date": "Tue, 29 Aug 2017 16:27:10 -0700",
        "Message-Id": "<20170829232711.1465-6-tom@quantonium.net>",
        "X-Mailer": "git-send-email 2.11.0",
        "In-Reply-To": "<20170829232711.1465-1-tom@quantonium.net>",
        "References": "<20170829232711.1465-1-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": "Populate offload flow_dissect callabck appropriately for fou and gue.\n\nSigned-off-by: Tom Herbert <tom@quantonium.net>\n---\n net/ipv4/fou.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 63 insertions(+)",
    "diff": "diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c\nindex 1540db65241a..a831dd49fb28 100644\n--- a/net/ipv4/fou.c\n+++ b/net/ipv4/fou.c\n@@ -282,6 +282,20 @@ static int fou_gro_complete(struct sock *sk, struct sk_buff *skb,\n \treturn err;\n }\n \n+static enum flow_dissect_ret fou_flow_dissect(struct sock *sk,\n+\t\t\tconst struct sk_buff *skb,\n+\t\t\tstruct flow_dissector_key_control *key_control,\n+\t\t\tstruct flow_dissector *flow_dissector,\n+\t\t\tvoid *target_container, void *data,\n+\t\t\t__be16 *p_proto, u8 *p_ip_proto, int *p_nhoff,\n+\t\t\tint *p_hlen, unsigned int flags)\n+{\n+\t*p_ip_proto = fou_from_sock(sk)->protocol;\n+\t*p_nhoff += sizeof(struct udphdr);\n+\n+\treturn FLOW_DISSECT_RET_IPPROTO_AGAIN;\n+}\n+\n static struct guehdr *gue_gro_remcsum(struct sk_buff *skb, unsigned int off,\n \t\t\t\t      struct guehdr *guehdr, void *data,\n \t\t\t\t      size_t hdrlen, struct gro_remcsum *grc,\n@@ -500,6 +514,53 @@ static int gue_gro_complete(struct sock *sk, struct sk_buff *skb, int nhoff)\n \treturn err;\n }\n \n+static enum flow_dissect_ret gue_flow_dissect(struct sock *sk,\n+\t\t\tconst struct sk_buff *skb,\n+\t\t\tstruct flow_dissector_key_control *key_control,\n+\t\t\tstruct flow_dissector *flow_dissector,\n+\t\t\tvoid *target_container, void *data,\n+\t\t\t__be16 *p_proto, u8 *p_ip_proto, int *p_nhoff,\n+\t\t\tint *p_hlen, unsigned int flags)\n+{\n+\tstruct guehdr *guehdr, _guehdr;\n+\n+\tguehdr = __skb_header_pointer(skb, *p_nhoff + sizeof(struct udphdr),\n+\t\t\t\t      sizeof(_guehdr), data, *p_hlen, &_guehdr);\n+\tif (!guehdr)\n+\t\treturn FLOW_DISSECT_RET_OUT_BAD;\n+\n+\tswitch (guehdr->version) {\n+\tcase 0:\n+\t\tif (unlikely(guehdr->control))\n+\t\t\treturn FLOW_DISSECT_RET_CONTINUE;\n+\n+\t\t*p_ip_proto = guehdr->proto_ctype;\n+\t\t*p_nhoff += sizeof(struct udphdr) +\n+\t\t    sizeof(*guehdr) + (guehdr->hlen << 2);\n+\n+\t\tbreak;\n+\tcase 1:\n+\t\tswitch (((struct iphdr *)guehdr)->version) {\n+\t\tcase 4:\n+\t\t\t*p_ip_proto = IPPROTO_IPIP;\n+\t\t\tbreak;\n+\t\tcase 6:\n+\t\t\t*p_ip_proto = IPPROTO_IPV6;\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\treturn FLOW_DISSECT_RET_CONTINUE;\n+\t\t}\n+\n+\t\t*p_nhoff += sizeof(struct udphdr);\n+\n+\t\tbreak;\n+\tdefault:\n+\t\treturn FLOW_DISSECT_RET_CONTINUE;\n+\t}\n+\n+\treturn FLOW_DISSECT_RET_IPPROTO_AGAIN;\n+}\n+\n static int fou_add_to_port_list(struct net *net, struct fou *fou)\n {\n \tstruct fou_net *fn = net_generic(net, fou_net_id);\n@@ -570,12 +631,14 @@ static int fou_create(struct net *net, struct fou_cfg *cfg,\n \t\ttunnel_cfg.encap_rcv = fou_udp_recv;\n \t\ttunnel_cfg.gro_receive = fou_gro_receive;\n \t\ttunnel_cfg.gro_complete = fou_gro_complete;\n+\t\ttunnel_cfg.flow_dissect = fou_flow_dissect;\n \t\tfou->protocol = cfg->protocol;\n \t\tbreak;\n \tcase FOU_ENCAP_GUE:\n \t\ttunnel_cfg.encap_rcv = gue_udp_recv;\n \t\ttunnel_cfg.gro_receive = gue_gro_receive;\n \t\ttunnel_cfg.gro_complete = gue_gro_complete;\n+\t\ttunnel_cfg.flow_dissect = gue_flow_dissect;\n \t\tbreak;\n \tdefault:\n \t\terr = -EINVAL;\n",
    "prefixes": [
        "v2",
        "net-next",
        "5/6"
    ]
}