networkd: netdev - introduce vtable for netdev kinds

[elogind.git] / src / network / networkd-netdev-vxlan.c

diff --git a/src/network/networkd-netdev-vxlan.c b/src/network/networkd-netdev-vxlan.c
new file mode 100644 (file)
index 0000000..38692c6
--- /dev/null
+++ b/src/network/networkd-netdev-vxlan.c
@@ -0,0 +1,142 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+    This file is part of systemd.
+
+    Copyright 2014 Susant Sahani <susant@redhat.com>
+
+    systemd is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.
+
+    systemd is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <netinet/ether.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include "sd-rtnl.h"
+#include "networkd-netdev-vxlan.h"
+#include "missing.h"
+
+static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *m) {
+        int r;
+
+        assert(netdev);
+        assert(link);
+        assert(link->ifname);
+        assert(m);
+
+        r = sd_rtnl_message_append_string(m, IFLA_IFNAME, netdev->ifname);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_IFNAME, attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_open_container(m, IFLA_LINKINFO);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_LINKINFO attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "vxlan");
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_INFO_DATA attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        if (netdev->vlanid <= VXLAN_VID_MAX) {
+                r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_ID, netdev->vxlanid);
+                if (r < 0) {
+                        log_error_netdev(netdev,
+                                         "Could not append IFLA_VXLAN_ID attribute: %s",
+                                         strerror(-r));
+                        return r;
+                }
+        }
+
+        r = sd_rtnl_message_append_in_addr(m, IFLA_VXLAN_GROUP, &netdev->group.in);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_VXLAN_GROUP attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_VXLAN_LINK attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        if(netdev->ttl) {
+                r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TTL, netdev->ttl);
+                if (r < 0) {
+                        log_error_netdev(netdev,
+                                         "Could not append IFLA_VXLAN_TTL attribute: %s",
+                                         strerror(-r));
+                        return r;
+                }
+        }
+
+        if(netdev->tos) {
+                r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_TOS, netdev->tos);
+                if (r < 0) {
+                        log_error_netdev(netdev,
+                                         "Could not append IFLA_VXLAN_TOS attribute: %s",
+                                         strerror(-r));
+                        return r;
+                }
+        }
+
+        r = sd_rtnl_message_append_u8(m, IFLA_VXLAN_LEARNING, netdev->learning);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_VXLAN_LEARNING attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_close_container(m);
+        if (r < 0) {
+                log_error_netdev(netdev,
+                                 "Could not append IFLA_LINKINFO attribute: %s",
+                                 strerror(-r));
+                return r;
+        }
+
+        return r;
+}
+
+static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
+        assert(netdev);
+        assert(filename);
+
+        if (netdev->vxlanid > VXLAN_VID_MAX) {
+                log_warning("VXLAN without valid Id configured in %s. Ignoring", filename);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+const NetDevVTable vxlan_vtable = {
+        .fill_message_create_on_link = netdev_vxlan_fill_message_create,
+        .config_verify = netdev_vxlan_verify,
+};