struct vlist_tree interfaces;
static LIST_HEAD(iface_all_users);
-static unsigned int interface_serial = 0;
enum {
IFACE_ATTR_IFNAME,
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(n->data);
+ const char *name = blobmsg_name(data);
+ unsigned len = blob_pad_len(data);
+
+ o = avl_find_element(&iface->data, name, o, node);
+ if (o) {
+ if (blob_pad_len(o->data) == len && !memcmp(o->data, data, len))
+ return 0;
- o = avl_find_element(&iface->data, n->node.key, o, node);
- if (o)
interface_data_del(iface, o);
+ }
+ n = calloc(1, sizeof(*n) + len);
+ memcpy(n->data, data, len);
+ n->node.key = blobmsg_name(n->data);
avl_insert(&iface->data, &n->node);
+
+ iface->updated |= IUF_DATA;
return 0;
}
{
enum interface_state state = iface->state;
+ if (state == IFS_DOWN)
+ return;
+
iface->state = IFS_DOWN;
if (state == IFS_UP)
interface_event(iface, IFEV_DOWN);
void
__interface_set_down(struct interface *iface, bool force)
{
- if (iface->state == IFS_DOWN ||
- iface->state == IFS_TEARDOWN)
+ switch (iface->state) {
+ case IFS_UP:
+ interface_event(iface, IFEV_DOWN);
+ case IFS_SETUP:
+ iface->state = IFS_TEARDOWN;
+ interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
+ if (force)
+ interface_flush_state(iface);
+
+ if (iface->dynamic)
+ vlist_delete(&interfaces, &iface->node);
+ break;
+
+ case IFS_DOWN:
+ if (iface->main_dev.dev)
+ device_release(&iface->main_dev);
+ case IFS_TEARDOWN:
+ default:
+ break;
+ }
+}
+
+static int
+__interface_set_up(struct interface *iface)
+{
+ int ret;
+
+ netifd_log_message(L_NOTICE, "Interface '%s' is setting up now\n", iface->name);
+
+ iface->state = IFS_SETUP;
+ ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
+ if (ret)
+ mark_interface_down(iface);
+
+ return ret;
+}
+
+static void
+interface_check_state(struct interface *iface)
+{
+ switch (iface->state) {
+ case IFS_UP:
+ if (!iface->enabled || !iface->link_state) {
+ mark_interface_down(iface);
+ interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, false);
+ }
+ break;
+ case IFS_DOWN:
+ if (iface->enabled && iface->link_state && !config_init)
+ __interface_set_up(iface);
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+interface_set_enabled(struct interface *iface, bool new_state)
+{
+ if (iface->enabled == new_state)
return;
- if (iface->state == IFS_UP)
- interface_event(iface, IFEV_DOWN);
- iface->state = IFS_TEARDOWN;
- interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
- if (force)
- interface_flush_state(iface);
+ netifd_log_message(L_NOTICE, "Interface '%s' is %s\n", iface->name, new_state ? "enabled" : "disabled");
+ iface->enabled = new_state;
+ interface_check_state(iface);
+}
- if (iface->dynamic)
- vlist_delete(&interfaces, &iface->node);
+static void
+interface_set_link_state(struct interface *iface, bool new_state)
+{
+ if (iface->link_state == new_state)
+ return;
+
+ netifd_log_message(L_NOTICE, "Interface '%s' has link connectivity %s\n", iface->name, new_state ? "" : "loss");
+ iface->link_state = new_state;
+ interface_check_state(iface);
}
static void
interface_cb(struct device_user *dep, enum device_event ev)
{
struct interface *iface;
- bool new_state;
+ bool new_state = false;
iface = container_of(dep, struct interface, main_dev);
switch (ev) {
case DEV_EVENT_ADD:
new_state = true;
- break;
case DEV_EVENT_REMOVE:
- new_state = false;
+ interface_set_available(iface, new_state);
+ if (!new_state && dep->dev->external)
+ interface_set_main_dev(iface, NULL);
+ break;
+ case DEV_EVENT_UP:
+ new_state = true;
+ case DEV_EVENT_DOWN:
+ interface_set_enabled(iface, new_state);
+ break;
+ case DEV_EVENT_LINK_UP:
+ new_state = true;
+ case DEV_EVENT_LINK_DOWN:
+ interface_set_link_state(iface, new_state);
break;
default:
- return;
+ break;
}
-
- interface_set_available(iface, new_state);
- if (!new_state && dep->dev->external)
- interface_set_main_dev(iface, NULL);
}
void
state->iface = iface;
}
-void
-interface_init(struct interface *iface, const char *name,
- struct blob_attr *config)
+struct interface *
+interface_alloc(const char *name, struct blob_attr *config)
{
+ struct interface *iface;
struct blob_attr *tb[IFACE_ATTR_MAX];
struct blob_attr *cur;
const char *proto_name = NULL;
+ char *iface_name;
- strncpy(iface->name, name, sizeof(iface->name) - 1);
+ iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
+ iface->name = strcpy(iface_name, name);
INIT_LIST_HEAD(&iface->errors);
INIT_LIST_HEAD(&iface->users);
INIT_LIST_HEAD(&iface->hotplug_list);
DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
}
- // Set a default exteranl routing table for IPv6 to do source-based-filtering
- struct interface *iface_old = vlist_find(&interfaces, name, iface_old, node);
- if (iface_old && iface_old->ip6table > 1000 && iface_old->ip6table < 2000)
- iface->ip6table = iface_old->ip6table;
- else
- iface->ip6table = 1000 + ++interface_serial;
-
if ((cur = tb[IFACE_ATTR_IP6TABLE])) {
if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip6table))
DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
iface->proto_ip.no_delegation = !blobmsg_get_bool_default(tb[IFACE_ATTR_DELEGATE], true);
iface->config_autostart = iface->autostart;
+ return iface;
}
void interface_set_dynamic(struct interface *iface)
void
interface_set_main_dev(struct interface *iface, struct device *dev)
{
- bool set_l3 = (iface->main_dev.dev == iface->l3_dev.dev);
+ bool set_l3 = (!dev || iface->main_dev.dev == iface->l3_dev.dev);
bool claimed = iface->l3_dev.claimed;
if (iface->main_dev.dev == dev)
interface_set_l3_dev(iface, dev);
device_add_user(&iface->main_dev, dev);
- if (!dev)
+ if (!dev) {
+ interface_set_link_state(iface, false);
return;
+ }
if (claimed)
device_claim(&iface->l3_dev);
}
int
+interface_handle_link(struct interface *iface, const char *name, bool add)
+{
+ struct device *dev;
+ int ret;
+
+ device_lock();
+
+ dev = device_get(name, add ? 2 : 0);
+ if (!dev) {
+ ret = UBUS_STATUS_NOT_FOUND;
+ goto out;
+ }
+
+ if (add) {
+ device_set_present(dev, true);
+ if (iface->device_config)
+ device_set_config(dev, &simple_device_type, iface->config);
+
+ system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
+ ret = interface_add_link(iface, dev);
+ } else {
+ ret = interface_remove_link(iface, dev);
+ }
+
+out:
+ device_unlock();
+
+ return ret;
+}
+
+int
interface_set_up(struct interface *iface)
{
int ret;
if (iface->main_dev.dev) {
ret = device_claim(&iface->main_dev);
- if (ret)
- return ret;
- }
-
- iface->state = IFS_SETUP;
- ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
- if (ret) {
- mark_interface_down(iface);
- return ret;
+ if (!ret)
+ interface_check_state(iface);
}
+ else
+ ret = __interface_set_up(iface);
- return 0;
+ return ret;
}
int
void
interface_update_start(struct interface *iface)
{
+ iface->updated = 0;
interface_ip_update_start(&iface->proto_ip);
}
#undef UPDATE
if (reload) {
- D(INTERFACE, "Reload interface '%s because of config changes\n",
+ D(INTERFACE, "Reload interface '%s' because of config changes\n",
if_old->name);
interface_clear_errors(if_old);
set_config_state(if_old, IFC_RELOAD);
projects / project / netifd.git / blobdiff