#include <sys/socket.h>
#include <net/ethernet.h>
+#ifdef linux
+#include <netinet/ether.h>
+#endif
+
#include "netifd.h"
#include "system.h"
#include "config.h"
static void __init dev_init(void)
{
- avl_init(&devices, avl_strcmp, false, NULL);
+ avl_init(&devices, avl_strcmp, true, NULL);
}
static void device_broadcast_event(struct device *dev, enum device_event ev)
return 0;
dep->claimed = true;
- DPRINTF("claim device %s, new refcount: %d\n", dev->ifname, dev->active + 1);
+ D(DEVICE, "claim device %s, new refcount: %d\n", dev->ifname, dev->active + 1);
if (++dev->active != 1)
return 0;
ret = dev->set_state(dev, true);
if (ret == 0)
device_broadcast_event(dev, DEV_EVENT_UP);
- else
+ else {
+ D(DEVICE, "claim device %s failed: %d\n", dev->ifname, ret);
dev->active = 0;
+ dep->claimed = false;
+ }
return ret;
}
dep->claimed = false;
dev->active--;
- DPRINTF("release device %s, new refcount: %d\n", dev->ifname, dev->active);
+ D(DEVICE, "release device %s, new refcount: %d\n", dev->ifname, dev->active);
assert(dev->active >= 0);
if (dev->active)
device_broadcast_event(dev, DEV_EVENT_DOWN);
}
-int check_device_state(struct device *dev)
+int device_check_state(struct device *dev)
{
if (!dev->type->check_state)
return 0;
if (name)
strncpy(dev->ifname, name, IFNAMSIZ);
- DPRINTF("Initialize device '%s'\n", dev->ifname);
+ D(DEVICE, "Initialize device '%s'\n", dev->ifname);
INIT_LIST_HEAD(&dev->users);
dev->type = type;
}
if (ret < 0)
return ret;
- check_device_state(dev);
+ device_check_state(dev);
return 0;
}
-struct device *device_get(const char *name, bool create)
+static struct device *
+device_create_default(const char *name)
+{
+ struct device *dev;
+
+ D(DEVICE, "Create simple device '%s'\n", name);
+ dev = calloc(1, sizeof(*dev));
+ device_init(dev, &simple_device_type, name);
+ dev->default_config = true;
+ return dev;
+}
+
+struct device *
+device_get(const char *name, bool create)
{
struct device *dev;
if (!create)
return NULL;
- dev = calloc(1, sizeof(*dev));
- device_init(dev, &simple_device_type, name);
+ return device_create_default(name);
+}
- return dev;
+static void
+device_delete(struct device *dev)
+{
+ if (!dev->avl.key)
+ return;
+
+ D(DEVICE, "Delete device '%s' from list\n", dev->ifname);
+ avl_delete(&devices, &dev->avl);
+ dev->avl.key = NULL;
}
void device_cleanup(struct device *dev)
{
struct device_user *dep, *tmp;
- DPRINTF("Clean up device '%s'\n", dev->ifname);
+ D(DEVICE, "Clean up device '%s'\n", dev->ifname);
list_for_each_entry_safe(dep, tmp, &dev->users, list) {
if (!dep->cb)
continue;
dep->cb(dep, DEV_EVENT_REMOVE);
+ device_release(dep);
}
- if (dev->avl.key)
- avl_delete(&devices, &dev->avl);
+ device_delete(dev);
}
void device_set_present(struct device *dev, bool state)
if (dev->present == state)
return;
- DPRINTF("Device '%s' %s present\n", dev->ifname, state ? "is now" : "is no longer" );
+ D(DEVICE, "Device '%s' %s present\n", dev->ifname, state ? "is now" : "is no longer" );
dev->present = state;
device_broadcast_event(dev, state ? DEV_EVENT_ADD : DEV_EVENT_REMOVE);
}
static void
__device_free_unused(struct device *dev)
{
- if (!list_empty(&dev->users))
+ if (!list_empty(&dev->users) || dev->current_config)
return;
device_free(dev);
avl_for_each_element_safe(&devices, dev, avl, tmp)
__device_free_unused(dev);
}
+
+void
+device_init_pending(void)
+{
+ struct device *dev, *tmp;
+
+ avl_for_each_element_safe(&devices, dev, avl, tmp) {
+ if (!dev->config_pending)
+ continue;
+
+ dev->type->config_init(dev);
+ dev->config_pending = false;
+ }
+}
+
+enum dev_change_type
+device_reload_config(struct device *dev, struct blob_attr *attr)
+{
+ struct blob_attr *tb[__DEV_ATTR_MAX];
+ const struct config_param_list *cfg = dev->type->config_params;
+
+ if (config_check_equal(dev->config, attr, cfg))
+ return DEV_CONFIG_NO_CHANGE;
+
+ if (cfg == &device_attr_list) {
+ memset(tb, 0, sizeof(tb));
+
+ if (dev->config)
+ blobmsg_parse(dev_attrs, __DEV_ATTR_MAX, tb,
+ blob_data(attr), blob_len(attr));
+
+ device_init_settings(dev, tb);
+ return DEV_CONFIG_APPLIED;
+ } else
+ return DEV_CONFIG_RECREATE;
+}
+
+static enum dev_change_type
+device_check_config(struct device *dev, const struct device_type *type,
+ struct blob_attr *attr)
+{
+ if (type != dev->type)
+ return DEV_CONFIG_RECREATE;
+
+ if (dev->type->reload)
+ return dev->type->reload(dev, attr);
+
+ return device_reload_config(dev, attr);
+}
+
+static void
+device_replace(struct device *dev, struct device *odev)
+{
+ struct device_user *dep, *tmp;
+ bool present = odev->present;
+
+ if (present)
+ device_set_present(odev, false);
+
+ list_for_each_entry_safe(dep, tmp, &odev->users, list) {
+ device_release(dep);
+ list_move_tail(&dep->list, &dev->users);
+ dep->dev = dev;
+ }
+ device_free(odev);
+
+ if (present)
+ device_set_present(dev, true);
+}
+
+void
+device_reset_config(void)
+{
+ struct device *dev;
+
+ avl_for_each_element(&devices, dev, avl)
+ dev->current_config = false;
+}
+
+void
+device_reset_old(void)
+{
+ struct device *dev, *tmp, *ndev;
+
+ avl_for_each_element_safe(&devices, dev, avl, tmp) {
+ if (dev->current_config || dev->default_config)
+ continue;
+
+ if (dev->type != &simple_device_type)
+ continue;
+
+ ndev = device_create_default(dev->ifname);
+ device_replace(ndev, dev);
+ }
+}
+
+struct device *
+device_create(const char *name, const struct device_type *type,
+ struct blob_attr *config)
+{
+ struct device *odev = NULL, *dev;
+ enum dev_change_type change;
+
+ config = config_memdup(config);
+ if (!config)
+ return NULL;
+
+ odev = device_get(name, false);
+ if (odev) {
+ odev->current_config = true;
+ change = device_check_config(odev, type, config);
+ switch (change) {
+ case DEV_CONFIG_APPLIED:
+ D(DEVICE, "Device '%s': config applied\n", odev->ifname);
+ free(odev->config);
+ odev->config = config;
+ if (odev->present) {
+ device_set_present(odev, false);
+ device_set_present(odev, true);
+ }
+ return odev;
+ case DEV_CONFIG_NO_CHANGE:
+ D(DEVICE, "Device '%s': no configuration change\n", odev->ifname);
+ free(config);
+ return odev;
+ case DEV_CONFIG_RECREATE:
+ D(DEVICE, "Device '%s': recreate device\n", odev->ifname);
+ device_delete(odev);
+ break;
+ }
+ } else
+ D(DEVICE, "Create new device '%s' (%s)\n", name, type->name);
+
+ dev = type->create(config);
+ if (!dev)
+ return NULL;
+
+ dev->current_config = true;
+ dev->config = config;
+ if (odev)
+ device_replace(dev, odev);
+
+ if (!config_init && dev->config_pending)
+ type->config_init(dev);
+
+ return dev;
+}
projects / project / netifd.git / blobdiff