+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@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 "system.h"
struct vlist_tree interfaces;
+static LIST_HEAD(iface_all_users);
enum {
IFACE_ATTR_IFNAME,
IFACE_ATTR_PROTO,
IFACE_ATTR_AUTO,
IFACE_ATTR_DEFAULTROUTE,
+ IFACE_ATTR_PEERDNS,
+ IFACE_ATTR_DNS,
+ IFACE_ATTR_DNS_SEARCH,
+ IFACE_ATTR_METRIC,
IFACE_ATTR_MAX
};
[IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_AUTO] = { .name = "auto", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_DEFAULTROUTE] = { .name = "defaultroute", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_PEERDNS] = { .name = "peerdns", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
+ [IFACE_ATTR_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
+};
+
+static const union config_param_info iface_attr_info[IFACE_ATTR_MAX] = {
+ [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
};
const struct config_param_list interface_attr_list = {
.n_params = IFACE_ATTR_MAX,
.params = iface_attrs,
+ .info = iface_attr_info,
};
static void
}
static void
+interface_data_del(struct interface *iface, struct interface_data *data)
+{
+ avl_delete(&iface->data, &data->node);
+ free(data);
+}
+
+static void
+interface_data_flush(struct interface *iface)
+{
+ struct interface_data *d, *tmp;
+
+ avl_for_each_element_safe(&iface->data, d, node, tmp)
+ interface_data_del(iface, d);
+}
+
+int
+interface_add_data(struct interface *iface, const struct blob_attr *data)
+{
+ struct interface_data *n, *o;
+
+ if (!blobmsg_check_attr(data, true))
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ n = calloc(1, sizeof(*n) + blob_pad_len(data));
+ memcpy(n->data, data, blob_pad_len(data));
+ n->node.key = blobmsg_name(data);
+
+ o = avl_find_element(&iface->data, n->node.key, o, node);
+ if (o)
+ interface_data_del(iface, o);
+
+ avl_insert(&iface->data, &n->node);
+ return 0;
+}
+
+static void
interface_event(struct interface *iface, enum interface_event ev)
{
struct interface_user *dep, *tmp;
list_for_each_entry_safe(dep, tmp, &iface->users, list)
- dep->cb(dep, IFEV_UP);
+ dep->cb(dep, iface, ev);
- interface_queue_event(iface, ev);
+ list_for_each_entry_safe(dep, tmp, &iface_all_users, list)
+ dep->cb(dep, iface, ev);
}
static void
interface_flush_state(struct interface *iface)
{
- interface_ip_flush(&iface->proto_ip);
if (iface->main_dev.dev)
device_release(&iface->main_dev);
- if (iface->l3_dev != &iface->main_dev && iface->l3_dev->dev)
- device_release(iface->l3_dev);
+ if (iface->l3_dev.dev)
+ device_release(&iface->l3_dev);
+ interface_data_flush(iface);
}
static void
{
if (iface->state == IFS_UP)
interface_event(iface, IFEV_DOWN);
+ interface_ip_set_enabled(&iface->config_ip, false);
+ interface_ip_flush(&iface->proto_ip);
interface_flush_state(iface);
+ system_flush_routes();
iface->state = IFS_DOWN;
}
void
interface_add_user(struct interface_user *dep, struct interface *iface)
{
+ if (!iface) {
+ list_add(&dep->list, &iface_all_users);
+ return;
+ }
+
dep->iface = iface;
list_add(&dep->list, &iface->users);
if (iface->state == IFS_UP)
- dep->cb(dep, IFEV_UP);
+ dep->cb(dep, iface, IFEV_UP);
}
void
!(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
dev = device_get(iface->ifname, true);
if (dev)
- device_add_user(&iface->main_dev, dev);
+ interface_set_main_dev(iface, dev);
}
if (iface->proto_handler->flags & PROTO_FLAG_INIT_AVAILABLE)
interface_set_available(iface, true);
static void
-interface_cleanup(struct interface *iface)
+interface_cleanup(struct interface *iface, bool reload)
{
struct interface_user *dep, *tmp;
interface_ip_flush(&iface->config_ip);
interface_flush_state(iface);
interface_clear_errors(iface);
- if (iface->main_dev.dev)
- device_remove_user(&iface->main_dev);
- iface->l3_dev = &iface->main_dev;
+ if (iface->main_dev.dev &&
+ (!reload || !iface->main_dev.hotplug))
+ interface_set_main_dev(iface, NULL);
interface_set_proto_state(iface, NULL);
}
static void
interface_do_free(struct interface *iface)
{
- interface_cleanup(iface);
+ interface_event(iface, IFEV_FREE);
+ interface_cleanup(iface, false);
free(iface->config);
netifd_ubus_remove_interface(iface);
avl_delete(&interfaces.avl, &iface->node.avl);
static void
interface_do_reload(struct interface *iface)
{
- interface_cleanup(iface);
+ interface_event(iface, IFEV_RELOAD);
+ interface_cleanup(iface, true);
proto_init_interface(iface, iface->config);
interface_claim_device(iface);
}
return;
netifd_log_message(L_NOTICE, "Interface '%s' is now down\n", iface->name);
- interface_ip_set_enabled(&iface->config_ip, false);
- system_flush_routes();
mark_interface_down(iface);
interface_handle_config_change(iface);
break;
return;
netifd_log_message(L_NOTICE, "Interface '%s' has lost the connection\n", iface->name);
- if (iface->state == IFS_UP)
- interface_event(iface, IFEV_DOWN);
+ mark_interface_down(iface);
iface->state = IFS_SETUP;
break;
}
INIT_LIST_HEAD(&iface->errors);
INIT_LIST_HEAD(&iface->users);
INIT_LIST_HEAD(&iface->hotplug_list);
- interface_ip_init(&iface->proto_ip, iface);
- interface_ip_init(&iface->config_ip, iface);
+ interface_ip_init(iface);
+ avl_init(&iface->data, avl_strcmp, false, NULL);
iface->config_ip.enabled = false;
iface->main_dev.cb = interface_cb;
- iface->l3_dev = &iface->main_dev;
blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
blob_data(config), blob_len(config));
iface->autostart = blobmsg_get_bool_default(tb[IFACE_ATTR_AUTO], true);
iface->proto_ip.no_defaultroute =
!blobmsg_get_bool_default(tb[IFACE_ATTR_DEFAULTROUTE], true);
+ iface->proto_ip.no_dns =
+ !blobmsg_get_bool_default(tb[IFACE_ATTR_PEERDNS], true);
+
+ if ((cur = tb[IFACE_ATTR_DNS]))
+ interface_add_dns_server_list(&iface->config_ip, cur);
+
+ if ((cur = tb[IFACE_ATTR_DNS_SEARCH]))
+ interface_add_dns_search_list(&iface->config_ip, cur);
+
+ if ((cur = tb[IFACE_ATTR_METRIC]))
+ iface->metric = blobmsg_get_u32(cur);
iface->config_autostart = iface->autostart;
}
iface->ifname = blobmsg_data(cur);
iface->config = config;
- vlist_add(&interfaces, &iface->node);
+ vlist_add(&interfaces, &iface->node, iface->name);
}
void
-interface_remove_link(struct interface *iface, struct device *dev)
+interface_set_l3_dev(struct interface *iface, struct device *dev)
{
- struct device *mdev = iface->main_dev.dev;
+ bool enabled = iface->config_ip.enabled;
+ bool claimed = iface->l3_dev.claimed;
- if (mdev && mdev->hotplug_ops) {
- mdev->hotplug_ops->del(mdev, dev);
+ if (iface->l3_dev.dev == dev)
return;
+
+ interface_ip_set_enabled(&iface->config_ip, false);
+ interface_ip_flush(&iface->proto_ip);
+ device_add_user(&iface->l3_dev, dev);
+
+ if (dev) {
+ if (claimed)
+ device_claim(&iface->l3_dev);
+ interface_ip_set_enabled(&iface->config_ip, enabled);
}
+}
+
+void
+interface_set_main_dev(struct interface *iface, struct device *dev)
+{
+ bool set_l3 = (iface->main_dev.dev == iface->l3_dev.dev);
+ bool claimed = iface->l3_dev.claimed;
+
+ if (iface->main_dev.dev == dev)
+ return;
+
+ if (set_l3)
+ interface_set_l3_dev(iface, dev);
+
+ device_add_user(&iface->main_dev, dev);
+ if (claimed)
+ device_claim(&iface->l3_dev);
+
+ if (!iface->l3_dev.dev)
+ interface_set_l3_dev(iface, dev);
+}
+
+int
+interface_remove_link(struct interface *iface, struct device *dev)
+{
+ struct device *mdev = iface->main_dev.dev;
+
+ if (mdev && mdev->hotplug_ops)
+ return mdev->hotplug_ops->del(mdev, dev);
+
+ if (!iface->main_dev.hotplug)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ if (dev != iface->main_dev.dev)
+ return UBUS_STATUS_INVALID_ARGUMENT;
device_remove_user(&iface->main_dev);
+ return 0;
}
int
{
struct device *mdev = iface->main_dev.dev;
- if (mdev && mdev->hotplug_ops)
- return mdev->hotplug_ops->add(mdev, dev);
+ if (mdev == dev)
+ return 0;
- if (iface->main_dev.dev)
- interface_remove_link(iface, NULL);
+ if (iface->main_dev.hotplug)
+ device_remove_user(&iface->main_dev);
- device_add_user(&iface->main_dev, dev);
+ if (mdev) {
+ if (mdev->hotplug_ops)
+ return mdev->hotplug_ops->add(mdev, dev);
+ else
+ return UBUS_STATUS_NOT_SUPPORTED;
+ }
+ interface_set_main_dev(iface, dev);
+ iface->main_dev.hotplug = true;
return 0;
}
void
interface_update_complete(struct interface *iface)
{
- struct device_route *route;
-
interface_ip_update_complete(&iface->proto_ip);
- vlist_for_each_element(&iface->config_ip.route, route, node) {
- if (iface->l3_dev->dev) {
- system_add_route(iface->l3_dev->dev, route);
- route->enabled = true;
- }
- }
+}
+
+static void
+interface_replace_dns(struct interface_ip_settings *new, struct interface_ip_settings *old)
+{
+ vlist_simple_replace(&new->dns_servers, &old->dns_servers);
+ vlist_simple_replace(&new->dns_search, &old->dns_search);
}
static void
goto reload;
}
- if (if_old->proto_ip.no_defaultroute != if_new->proto_ip.no_defaultroute) {
- if_old->proto_ip.no_defaultroute = if_new->proto_ip.no_defaultroute;
- interface_ip_set_enabled(&if_old->proto_ip, if_old->proto_ip.enabled);
+#define UPDATE(field) ({ \
+ bool __changed = (if_old->field != if_new->field); \
+ if_old->field = if_new->field; \
+ __changed; \
+ })
+
+ if (UPDATE(metric) || UPDATE(proto_ip.no_defaultroute)) {
+ interface_ip_set_enabled(&if_old->config_ip, false);
+ interface_ip_set_enabled(&if_old->config_ip, if_new->config_ip.enabled);
+ interface_ip_set_enabled(&if_old->proto_ip, false);
+ interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
}
+ UPDATE(proto_ip.no_dns);
+ interface_replace_dns(&if_old->config_ip, &if_new->config_ip);
+ interface_write_resolv_conf();
+
+#undef UPDATE
+
goto out;
reload:
static void __init
interface_init_list(void)
{
- vlist_init(&interfaces, avl_strcmp, interface_update,
- struct interface, node, name);
+ vlist_init(&interfaces, avl_strcmp, interface_update);
interfaces.keep_old = true;
interfaces.no_delete = true;
}
projects / project / netifd.git / blobdiff