Add support for LISP tunneling

[sliver-openvswitch.git] / lib / dpif-linux.c

diff --git a/lib/dpif-linux.c b/lib/dpif-linux.c
index 6863e08..1b23b39 100644 (file)
--- a/lib/dpif-linux.c
+++ b/lib/dpif-linux.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -421,18 +421,76 @@ dpif_linux_get_stats(const struct dpif *dpif_, struct dpif_dp_stats *stats)
     return error;
 }
 
+static const char *
+get_vport_type(const struct dpif_linux_vport *vport)
+{
+    static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
+
+    switch (vport->type) {
+    case OVS_VPORT_TYPE_NETDEV:
+        return "system";
+
+    case OVS_VPORT_TYPE_INTERNAL:
+        return "internal";
+
+    case OVS_VPORT_TYPE_GRE:
+        return "gre";
+
+    case OVS_VPORT_TYPE_GRE64:
+        return "gre64";
+
+    case OVS_VPORT_TYPE_VXLAN:
+        return "vxlan";
+
+    case OVS_VPORT_TYPE_LISP:
+        return "lisp";
+
+    case OVS_VPORT_TYPE_UNSPEC:
+    case __OVS_VPORT_TYPE_MAX:
+        break;
+    }
+
+    VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
+                 vport->dp_ifindex, vport->name, (unsigned int) vport->type);
+    return "unknown";
+}
+
+static enum ovs_vport_type
+netdev_to_ovs_vport_type(const struct netdev *netdev)
+{
+    const char *type = netdev_get_type(netdev);
+
+    if (!strcmp(type, "tap") || !strcmp(type, "system")) {
+        return OVS_VPORT_TYPE_NETDEV;
+    } else if (!strcmp(type, "internal")) {
+        return OVS_VPORT_TYPE_INTERNAL;
+    } else if (strstr(type, "gre64")) {
+        return OVS_VPORT_TYPE_GRE64;
+    } else if (strstr(type, "gre")) {
+        return OVS_VPORT_TYPE_GRE;
+    } else if (!strcmp(type, "vxlan")) {
+        return OVS_VPORT_TYPE_VXLAN;
+    } else if (!strcmp(type, "lisp")) {
+        return OVS_VPORT_TYPE_LISP;
+    } else {
+        return OVS_VPORT_TYPE_UNSPEC;
+    }
+}
+
 static int
 dpif_linux_port_add(struct dpif *dpif_, struct netdev *netdev,
                     uint32_t *port_nop)
 {
     struct dpif_linux *dpif = dpif_linux_cast(dpif_);
-    const char *name = netdev_get_name(netdev);
+    const struct netdev_tunnel_config *tnl_cfg;
+    const char *name = netdev_vport_get_dpif_port(netdev);
     const char *type = netdev_get_type(netdev);
     struct dpif_linux_vport request, reply;
-    const struct ofpbuf *options;
     struct nl_sock *sock = NULL;
     uint32_t upcall_pid;
     struct ofpbuf *buf;
+    uint64_t options_stub[64 / 8];
+    struct ofpbuf options;
     int error;
 
     if (dpif->epoll_fd >= 0) {
@@ -445,7 +503,7 @@ dpif_linux_port_add(struct dpif *dpif_, struct netdev *netdev,
     dpif_linux_vport_init(&request);
     request.cmd = OVS_VPORT_CMD_NEW;
     request.dp_ifindex = dpif->dp_ifindex;
-    request.type = netdev_vport_get_vport_type(netdev);
+    request.type = netdev_to_ovs_vport_type(netdev);
     if (request.type == OVS_VPORT_TYPE_UNSPEC) {
         VLOG_WARN_RL(&error_rl, "%s: cannot create port `%s' because it has "
                      "unsupported type `%s'",
@@ -455,16 +513,19 @@ dpif_linux_port_add(struct dpif *dpif_, struct netdev *netdev,
     }
     request.name = name;
 
-    options = netdev_vport_get_options(netdev);
-    if (options && options->size) {
-        request.options = options->data;
-        request.options_len = options->size;
-    }
-
     if (request.type == OVS_VPORT_TYPE_NETDEV) {
         netdev_linux_ethtool_set_flag(netdev, ETH_FLAG_LRO, "LRO", false);
     }
 
+    tnl_cfg = netdev_get_tunnel_config(netdev);
+    if (tnl_cfg && tnl_cfg->dst_port != 0) {
+        ofpbuf_use_stack(&options, options_stub, sizeof options_stub);
+        nl_msg_put_u16(&options, OVS_TUNNEL_ATTR_DST_PORT,
+                       ntohs(tnl_cfg->dst_port));
+        request.options = options.data;
+        request.options_len = options.size;
+    }
+
     request.port_no = *port_nop;
     upcall_pid = sock ? nl_sock_pid(sock) : 0;
     request.upcall_pid = &upcall_pid;
@@ -547,7 +608,7 @@ dpif_linux_port_query__(const struct dpif *dpif, uint32_t port_no,
             error = ENODEV;
         } else if (dpif_port) {
             dpif_port->name = xstrdup(reply.name);
-            dpif_port->type = xstrdup(netdev_vport_get_netdev_type(&reply));
+            dpif_port->type = xstrdup(get_vport_type(&reply));
             dpif_port->port_no = reply.port_no;
         }
         ofpbuf_delete(buf);
@@ -647,7 +708,7 @@ dpif_linux_port_dump_next(const struct dpif *dpif OVS_UNUSED, void *state_,
     }
 
     dpif_port->name = CONST_CAST(char *, vport.name);
-    dpif_port->type = CONST_CAST(char *, netdev_vport_get_netdev_type(&vport));
+    dpif_port->type = CONST_CAST(char *, get_vport_type(&vport));
     dpif_port->port_no = vport.port_no;
     return 0;
 }
@@ -1176,7 +1237,7 @@ parse_odp_packet(struct ofpbuf *buf, struct dpif_upcall *upcall,
         [OVS_PACKET_ATTR_KEY] = { .type = NL_A_NESTED },
 
         /* OVS_PACKET_CMD_ACTION only. */
-        [OVS_PACKET_ATTR_USERDATA] = { .type = NL_A_U64, .optional = true },
+        [OVS_PACKET_ATTR_USERDATA] = { .type = NL_A_UNSPEC, .optional = true },
     };
 
     struct ovs_header *ovs_header;
@@ -1214,9 +1275,7 @@ parse_odp_packet(struct ofpbuf *buf, struct dpif_upcall *upcall,
     upcall->key = CONST_CAST(struct nlattr *,
                              nl_attr_get(a[OVS_PACKET_ATTR_KEY]));
     upcall->key_len = nl_attr_get_size(a[OVS_PACKET_ATTR_KEY]);
-    upcall->userdata = (a[OVS_PACKET_ATTR_USERDATA]
-                        ? nl_attr_get_u64(a[OVS_PACKET_ATTR_USERDATA])
-                        : 0);
+    upcall->userdata = a[OVS_PACKET_ATTR_USERDATA];
     *dp_ifindex = ovs_header->dp_ifindex;
 
     return 0;