--- /dev/null
+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program 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 General Public License for more details.
+ */
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <errno.h>
+#include <netinet/ether.h>
+
+#include "netifd.h"
+#include "device.h"
+#include "interface.h"
+#include "system.h"
+
+enum {
+ MACVLAN_ATTR_IFNAME,
+ MACVLAN_ATTR_MACADDR,
+ MACVLAN_ATTR_MODE,
+ __MACVLAN_ATTR_MAX
+};
+
+static const struct blobmsg_policy macvlan_attrs[__MACVLAN_ATTR_MAX] = {
+ [MACVLAN_ATTR_IFNAME] = { "ifname", BLOBMSG_TYPE_STRING },
+ [MACVLAN_ATTR_MACADDR] = { "macaddr", BLOBMSG_TYPE_STRING },
+ [MACVLAN_ATTR_MODE] = { "mode", BLOBMSG_TYPE_STRING },
+};
+
+static const struct uci_blob_param_list macvlan_attr_list = {
+ .n_params = __MACVLAN_ATTR_MAX,
+ .params = macvlan_attrs,
+};
+
+struct macvlan_device {
+ struct device dev;
+ struct device_user parent;
+
+ device_state_cb set_state;
+
+ struct blob_attr *config_data;
+ struct blob_attr *ifname;
+ struct macvlan_config config;
+};
+
+static void
+macvlan_base_cb(struct device_user *dev, enum device_event ev)
+{
+ struct macvlan_device *mvdev = container_of(dev, struct macvlan_device, parent);
+
+ switch (ev) {
+ case DEV_EVENT_ADD:
+ device_set_present(&mvdev->dev, true);
+ break;
+ case DEV_EVENT_REMOVE:
+ device_set_present(&mvdev->dev, false);
+ break;
+ default:
+ return;
+ }
+}
+
+static int
+macvlan_set_down(struct macvlan_device *mvdev)
+{
+ mvdev->set_state(&mvdev->dev, false);
+ system_macvlan_del(&mvdev->dev);
+ device_release(&mvdev->parent);
+
+ return 0;
+}
+
+static int
+macvlan_set_up(struct macvlan_device *mvdev)
+{
+ int ret;
+
+ ret = device_claim(&mvdev->parent);
+ if (ret < 0)
+ return ret;
+
+ ret = system_macvlan_add(&mvdev->dev, mvdev->parent.dev, &mvdev->config);
+ if (ret < 0)
+ goto release;
+
+ ret = mvdev->set_state(&mvdev->dev, true);
+ if (ret)
+ goto delete;
+
+ return 0;
+
+delete:
+ system_macvlan_del(&mvdev->dev);
+release:
+ device_release(&mvdev->parent);
+ return ret;
+}
+
+static int
+macvlan_set_state(struct device *dev, bool up)
+{
+ struct macvlan_device *mvdev;
+
+ D(SYSTEM, "macvlan_set_state(%s, %u)\n", dev->ifname, up);
+
+ mvdev = container_of(dev, struct macvlan_device, dev);
+ if (up)
+ return macvlan_set_up(mvdev);
+ else
+ return macvlan_set_down(mvdev);
+}
+
+static void
+macvlan_free(struct device *dev)
+{
+ struct macvlan_device *mvdev;
+
+ mvdev = container_of(dev, struct macvlan_device, dev);
+ device_remove_user(&mvdev->parent);
+ free(mvdev);
+}
+
+static void
+macvlan_dump_info(struct device *dev, struct blob_buf *b)
+{
+ struct macvlan_device *mvdev;
+
+ mvdev = container_of(dev, struct macvlan_device, dev);
+ blobmsg_add_string(b, "parent", mvdev->parent.dev->ifname);
+ system_if_dump_info(dev, b);
+}
+
+static void
+macvlan_config_init(struct device *dev)
+{
+ struct macvlan_device *mvdev;
+ struct device *basedev = NULL;
+
+ mvdev = container_of(dev, struct macvlan_device, dev);
+ if (mvdev->ifname)
+ basedev = device_get(blobmsg_data(mvdev->ifname), true);
+
+ device_add_user(&mvdev->parent, basedev);
+}
+
+static void
+macvlan_apply_settings(struct macvlan_device *mvdev, struct blob_attr **tb)
+{
+ struct macvlan_config *cfg = &mvdev->config;
+ struct blob_attr *cur;
+ struct ether_addr *ea;
+
+ cfg->flags = 0;
+ cfg->mode = NULL;
+
+ if ((cur = tb[MACVLAN_ATTR_MACADDR])) {
+ ea = ether_aton(blobmsg_data(cur));
+ if (ea) {
+ memcpy(cfg->macaddr, ea, 6);
+ cfg->flags |= MACVLAN_OPT_MACADDR;
+ }
+ }
+
+ if ((cur = tb[MACVLAN_ATTR_MODE]))
+ cfg->mode = blobmsg_data(cur);
+}
+
+static enum dev_change_type
+macvlan_reload(struct device *dev, struct blob_attr *attr)
+{
+ struct blob_attr *tb_dev[__DEV_ATTR_MAX];
+ struct blob_attr *tb_mv[__MACVLAN_ATTR_MAX];
+ enum dev_change_type ret = DEV_CONFIG_APPLIED;
+ struct macvlan_device *mvdev;
+
+ mvdev = container_of(dev, struct macvlan_device, dev);
+
+ blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
+ blob_data(attr), blob_len(attr));
+ blobmsg_parse(macvlan_attrs, __MACVLAN_ATTR_MAX, tb_mv,
+ blob_data(attr), blob_len(attr));
+
+ device_init_settings(dev, tb_dev);
+ macvlan_apply_settings(mvdev, tb_mv);
+ mvdev->ifname = tb_mv[MACVLAN_ATTR_IFNAME];
+
+ if (mvdev->config_data) {
+ struct blob_attr *otb_dev[__DEV_ATTR_MAX];
+ struct blob_attr *otb_mv[__MACVLAN_ATTR_MAX];
+
+ blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, otb_dev,
+ blob_data(mvdev->config_data), blob_len(mvdev->config_data));
+
+ if (uci_blob_diff(tb_dev, otb_dev, &device_attr_list, NULL))
+ ret = DEV_CONFIG_RESTART;
+
+ blobmsg_parse(macvlan_attrs, __MACVLAN_ATTR_MAX, otb_mv,
+ blob_data(mvdev->config_data), blob_len(mvdev->config_data));
+
+ if (uci_blob_diff(tb_mv, otb_mv, &macvlan_attr_list, NULL))
+ ret = DEV_CONFIG_RESTART;
+
+ macvlan_config_init(dev);
+ }
+
+ mvdev->config_data = attr;
+ return ret;
+}
+
+static struct device *
+macvlan_create(const char *name, struct blob_attr *attr)
+{
+ struct macvlan_device *mvdev;
+ struct device *dev = NULL;
+
+ mvdev = calloc(1, sizeof(*mvdev));
+ if (!mvdev)
+ return NULL;
+
+ dev = &mvdev->dev;
+ device_init(dev, &macvlan_device_type, name);
+ dev->config_pending = true;
+
+ mvdev->set_state = dev->set_state;
+ dev->set_state = macvlan_set_state;
+
+ dev->hotplug_ops = NULL;
+ mvdev->parent.cb = macvlan_base_cb;
+
+ macvlan_reload(dev, attr);
+
+ return dev;
+}
+
+const struct device_type macvlan_device_type = {
+ .name = "MAC VLAN",
+ .config_params = &macvlan_attr_list,
+
+ .create = macvlan_create,
+ .config_init = macvlan_config_init,
+ .reload = macvlan_reload,
+ .free = macvlan_free,
+ .dump_info = macvlan_dump_info,
+};
#include <linux/rtnetlink.h>
#include <linux/sockios.h>
#include <linux/ip.h>
+#include <linux/if_link.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/if_tunnel.h>
return 0;
}
+int system_macvlan_add(struct device *macvlan, struct device *dev, struct macvlan_config *cfg)
+{
+ struct nl_msg *msg;
+ struct nlattr *linkinfo, *data;
+ struct ifinfomsg iim = { .ifi_family = AF_INET };
+ int ifindex = system_if_resolve(dev);
+ int i, rv;
+ static const struct {
+ const char *name;
+ enum macvlan_mode val;
+ } modes[] = {
+ { "private", MACVLAN_MODE_PRIVATE },
+ { "vepa", MACVLAN_MODE_VEPA },
+ { "bridge", MACVLAN_MODE_BRIDGE },
+ { "passthru", MACVLAN_MODE_PASSTHRU },
+ };
+
+ if (ifindex == 0)
+ return -ENOENT;
+
+ msg = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
+
+ if (!msg)
+ return -1;
+
+ nlmsg_append(msg, &iim, sizeof(iim), 0);
+
+ if (cfg->flags & MACVLAN_OPT_MACADDR)
+ nla_put(msg, IFLA_ADDRESS, sizeof(cfg->macaddr), cfg->macaddr);
+ nla_put(msg, IFLA_IFNAME, IFNAMSIZ, macvlan->ifname);
+ nla_put_u32(msg, IFLA_LINK, ifindex);
+
+ if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO)))
+ goto nla_put_failure;
+
+ nla_put(msg, IFLA_INFO_KIND, strlen("macvlan"), "macvlan");
+
+ if (!(data = nla_nest_start(msg, IFLA_INFO_DATA)))
+ goto nla_put_failure;
+
+ if (cfg->mode) {
+ for (i = 0; i < ARRAY_SIZE(modes); i++) {
+ if (strcmp(cfg->mode, modes[i].name) != 0)
+ continue;
+
+ nla_put_u32(msg, IFLA_MACVLAN_MODE, modes[i].val);
+ break;
+ }
+ }
+
+ nla_nest_end(msg, data);
+ nla_nest_end(msg, linkinfo);
+
+ rv = system_rtnl_call(msg);
+ if (rv)
+ D(SYSTEM, "Error adding macvlan '%s' over '%s': %d\n", macvlan->ifname, dev->ifname, rv);
+
+ return rv;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOMEM;
+}
+
+int system_macvlan_del(struct device *macvlan)
+{
+ struct nl_msg *msg;
+ struct ifinfomsg iim;
+
+ iim.ifi_family = AF_INET;
+ iim.ifi_index = 0;
+
+ msg = nlmsg_alloc_simple(RTM_DELLINK, 0);
+
+ if (!msg)
+ return -1;
+
+ nlmsg_append(msg, &iim, sizeof(iim), 0);
+
+ nla_put(msg, IFLA_INFO_KIND, strlen("macvlan"), "macvlan");
+ nla_put(msg, IFLA_IFNAME, sizeof(macvlan->ifname), macvlan->ifname);
+
+ system_rtnl_call(msg);
+
+ return 0;
+}
+
static int system_vlan(struct device *dev, int id)
{
struct vlan_ioctl_args ifr = {
projects / oweals / netifd.git / commitdiff