mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-11-17 17:39:28 +01:00
device/netdev: Properly implement mode switching
This commit is contained in:
Denis Kenzior
parent
b2045a309b
commit
5a6c19988c
109
src/device.c
109
src/device.c
@ -95,8 +95,6 @@ struct device {
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bool seen_hidden_networks : 1;
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uint32_t ap_roam_watch;
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enum device_mode mode;
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};
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struct signal_agent {
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@ -454,11 +452,6 @@ enum device_state device_get_state(struct device *device)
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return device->state;
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}
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enum device_mode device_get_mode(struct device *device)
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{
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return device->mode;
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}
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static void periodic_scan_trigger(int err, void *user_data)
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{
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struct device *device = user_data;
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@ -2054,29 +2047,6 @@ static struct l_dbus_message *device_signal_agent_unregister(
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return l_dbus_message_new_method_return(message);
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}
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static void device_prepare_adhoc_ap_mode(struct device *device)
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{
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periodic_scan_stop(device);
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/* Drop all state we can related to client mode */
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if (device->scan_pending)
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dbus_pending_reply(&device->scan_pending,
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dbus_error_aborted(device->scan_pending));
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l_hashmap_foreach_remove(device->networks,
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device_remove_network, device);
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l_queue_destroy(device->autoconnect_list, l_free);
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device->autoconnect_list = l_queue_new();
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l_queue_destroy(device->bss_list, bss_free);
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device->bss_list = l_queue_new();
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l_queue_destroy(device->networks_sorted, NULL);
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device->networks_sorted = l_queue_new();
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}
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static void device_hidden_network_scan_triggered(int err, void *user_data)
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{
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struct device *device = user_data;
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@ -2472,35 +2442,19 @@ static bool device_property_get_mode(struct l_dbus *dbus,
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return true;
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}
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static struct l_dbus_message *device_change_mode(struct device *device,
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struct l_dbus_message *message, enum device_mode mode)
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static void set_mode_cb(struct netdev *netdev, int result, void *user_data)
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{
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if (device->mode == mode)
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return dbus_error_already_exists(message);
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struct set_generic_cb_data *cb_data = user_data;
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struct l_dbus_message *reply = NULL;
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/* ensure correct connection state in AP/AdHoc mode */
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if ((mode == DEVICE_MODE_AP || mode == DEVICE_MODE_ADHOC) &&
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(device->state != DEVICE_STATE_DISCONNECTED &&
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device->state != DEVICE_STATE_AUTOCONNECT))
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return dbus_error_busy(message);
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if (result < 0)
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reply = dbus_error_from_errno(result, cb_data->message);
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switch (mode) {
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case DEVICE_MODE_AP:
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device_prepare_adhoc_ap_mode(device);
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netdev_set_iftype(device->netdev, NETDEV_IFTYPE_AP);
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break;
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case DEVICE_MODE_ADHOC:
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device_prepare_adhoc_ap_mode(device);
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netdev_set_iftype(device->netdev, NETDEV_IFTYPE_ADHOC);
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break;
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case DEVICE_MODE_STATION:
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netdev_set_iftype(device->netdev, NETDEV_IFTYPE_STATION);
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break;
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}
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cb_data->complete(cb_data->dbus, cb_data->message, reply);
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cb_data->message = NULL;
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device->mode = mode;
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return NULL;
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l_dbus_property_changed(cb_data->dbus, device_get_path(cb_data->device),
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IWD_DEVICE_INTERFACE, "Mode");
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}
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static struct l_dbus_message *device_property_set_mode(struct l_dbus *dbus,
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@ -2510,27 +2464,45 @@ static struct l_dbus_message *device_property_set_mode(struct l_dbus *dbus,
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void *user_data)
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{
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struct device *device = user_data;
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struct l_dbus_message *reply;
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const char* mode;
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enum device_mode change;
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struct netdev *netdev = device->netdev;
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const char *mode;
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enum netdev_iftype iftype;
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int r;
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struct set_generic_cb_data *cb_data;
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if (!l_dbus_message_iter_get_variant(new_value, "s", &mode))
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return dbus_error_invalid_args(message);
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if (!strcmp(mode, "station"))
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change = DEVICE_MODE_STATION;
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iftype = NETDEV_IFTYPE_STATION;
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else if (!strcmp(mode, "ap"))
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change = DEVICE_MODE_AP;
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iftype = NETDEV_IFTYPE_AP;
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else if (!strcmp(mode, "ad-hoc"))
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change = DEVICE_MODE_ADHOC;
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iftype = NETDEV_IFTYPE_ADHOC;
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else
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return dbus_error_invalid_args(message);
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reply = device_change_mode(device, message, change);
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if (reply)
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return reply;
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if (iftype == netdev_get_iftype(netdev)) {
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complete(dbus, message, NULL);
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return NULL;
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}
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complete(dbus, message, NULL);
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/* TODO: Special case, remove when Device/Station split is made */
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if (iftype != NETDEV_IFTYPE_STATION && device_is_busy(device))
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return dbus_error_busy(message);
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cb_data = l_new(struct set_generic_cb_data, 1);
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cb_data->device = device;
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cb_data->dbus = dbus;
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cb_data->message = message;
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cb_data->complete = complete;
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r = netdev_set_iftype(device->netdev, iftype, set_mode_cb,
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cb_data, set_generic_destroy);
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if (r < 0) {
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l_free(cb_data);
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return dbus_error_from_errno(r, message);
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}
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return NULL;
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}
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@ -2591,6 +2563,10 @@ static void device_netdev_notify(struct netdev *netdev,
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l_dbus_property_changed(dbus, device_get_path(device),
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IWD_DEVICE_INTERFACE, "Powered");
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/* TODO: Remove when Device/Station split is done */
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if (netdev_get_iftype(device->netdev) != NETDEV_IFTYPE_STATION)
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return;
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if (device->autoconnect)
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device_enter_state(device, DEVICE_STATE_AUTOCONNECT);
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else
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@ -2677,7 +2653,8 @@ struct device *device_create(struct wiphy *wiphy, struct netdev *netdev)
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action_ap_roam_prefix, sizeof(action_ap_roam_prefix),
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device_ap_roam_frame_event, device);
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if (netdev_get_is_up(netdev))
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if (netdev_get_is_up(netdev) &&
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netdev_get_iftype(netdev) == NETDEV_IFTYPE_STATION)
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device_enter_state(device, DEVICE_STATE_AUTOCONNECT);
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return device;
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@ -44,12 +44,6 @@ enum device_state {
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DEVICE_STATE_ROAMING
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};
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enum device_mode {
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DEVICE_MODE_STATION,
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DEVICE_MODE_AP,
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DEVICE_MODE_ADHOC,
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};
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typedef void (*device_watch_func_t)(struct device *device,
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enum device_event event,
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void *userdata);
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@ -64,7 +58,6 @@ struct netdev *device_get_netdev(struct device *device);
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uint32_t device_get_ifindex(struct device *device);
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const uint8_t *device_get_address(struct device *device);
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enum device_state device_get_state(struct device *device);
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enum device_mode device_get_mode(struct device *device);
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uint32_t device_add_state_watch(struct device *device,
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device_state_watch_func_t func,
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160
src/netdev.c
160
src/netdev.c
@ -92,6 +92,7 @@ struct netdev {
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uint32_t disconnect_cmd_id;
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uint32_t join_adhoc_cmd_id;
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uint32_t leave_adhoc_cmd_id;
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uint32_t set_interface_cmd_id;
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enum netdev_result result;
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struct l_timeout *neighbor_report_timeout;
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struct l_timeout *sa_query_timeout;
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@ -3823,10 +3824,126 @@ static int netdev_cqm_rssi_update(struct netdev *netdev)
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return 0;
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}
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int netdev_set_iftype(struct netdev *netdev, enum netdev_iftype type)
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static struct l_genl_msg *netdev_build_cmd_set_interface(struct netdev *netdev,
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uint32_t iftype)
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{
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struct l_genl_msg *msg =
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l_genl_msg_new_sized(NL80211_CMD_SET_INTERFACE, 32);
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l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
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l_genl_msg_append_attr(msg, NL80211_ATTR_IFTYPE, 4, &iftype);
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return msg;
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}
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struct netdev_set_iftype_request {
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netdev_command_cb_t cb;
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void *user_data;
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netdev_destroy_func_t destroy;
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uint32_t pending_type;
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uint32_t ref;
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struct netdev *netdev;
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bool bring_up;
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};
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static void netdev_set_iftype_request_destroy(void *user_data)
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{
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struct netdev_set_iftype_request *req = user_data;
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struct netdev *netdev = req->netdev;
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req->ref--;
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if (req->ref)
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return;
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netdev->set_powered_cmd_id = 0;
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netdev->set_interface_cmd_id = 0;
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if (req->destroy)
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req->destroy(req->user_data);
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l_free(req);
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}
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static void netdev_set_iftype_up_cb(int error, uint16_t type,
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const void *data,
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uint32_t len, void *user_data)
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{
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struct netdev_set_iftype_request *req = user_data;
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struct netdev *netdev = req->netdev;
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if (req->cb)
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req->cb(netdev, error, req->user_data);
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}
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static void netdev_set_iftype_cb(struct l_genl_msg *msg, void *user_data)
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{
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struct netdev_set_iftype_request *req = user_data;
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struct netdev *netdev = req->netdev;
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int error = l_genl_msg_get_error(msg);
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if (error != 0)
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goto done;
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netdev->type = req->pending_type;
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/* If the netdev was down originally, we're done */
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if (!req->bring_up)
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goto done;
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netdev->set_powered_cmd_id =
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rtnl_set_powered(netdev->index, true,
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netdev_set_iftype_up_cb, req,
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netdev_set_iftype_request_destroy);
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if (!netdev->set_powered_cmd_id) {
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error = -EIO;
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goto done;
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}
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req->ref++;
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netdev->set_interface_cmd_id = 0;
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return;
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done:
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if (req->cb)
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req->cb(netdev, error, req->user_data);
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}
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static void netdev_set_iftype_down_cb(int error, uint16_t type,
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const void *data,
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uint32_t len, void *user_data)
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{
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struct netdev_set_iftype_request *req = user_data;
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struct netdev *netdev = req->netdev;
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struct l_genl_msg *msg;
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if (error != 0)
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goto error;
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msg = netdev_build_cmd_set_interface(netdev, req->pending_type);
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netdev->set_interface_cmd_id =
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l_genl_family_send(nl80211, msg, netdev_set_iftype_cb, req,
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netdev_set_iftype_request_destroy);
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if (!netdev->set_interface_cmd_id) {
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l_genl_msg_unref(msg);
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error = -EIO;
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goto error;
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}
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req->ref++;
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netdev->set_powered_cmd_id = 0;
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return;
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error:
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if (req->cb)
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req->cb(netdev, error, req->user_data);
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}
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int netdev_set_iftype(struct netdev *netdev, enum netdev_iftype type,
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netdev_command_cb_t cb, void *user_data,
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netdev_destroy_func_t destroy)
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{
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uint32_t iftype;
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struct netdev_set_iftype_request *req;
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switch (type) {
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case NETDEV_IFTYPE_AP:
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@ -3843,21 +3960,42 @@ int netdev_set_iftype(struct netdev *netdev, enum netdev_iftype type)
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return -EINVAL;
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}
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msg = l_genl_msg_new_sized(NL80211_CMD_SET_INTERFACE, 32);
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l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
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l_genl_msg_append_attr(msg, NL80211_ATTR_IFTYPE, 4, &iftype);
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if (netdev->set_powered_cmd_id ||
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netdev->set_interface_cmd_id)
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return -EBUSY;
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if (!l_genl_family_send(nl80211, msg, NULL, NULL, NULL)) {
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l_error("CMD_SET_INTERFACE failed");
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req = l_new(struct netdev_set_iftype_request, 1);
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req->cb = cb;
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req->user_data = user_data;
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req->destroy = destroy;
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req->pending_type = iftype;
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req->netdev = netdev;
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req->ref = 1;
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req->bring_up = netdev_get_is_up(netdev);
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if (!req->bring_up) {
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struct l_genl_msg *msg =
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netdev_build_cmd_set_interface(netdev, iftype);
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netdev->set_interface_cmd_id =
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l_genl_family_send(nl80211, msg,
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netdev_set_iftype_cb, req,
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netdev_set_iftype_request_destroy);
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if (netdev->set_interface_cmd_id)
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return 0;
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l_genl_msg_unref(msg);
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return -EIO;
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} else {
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netdev->set_powered_cmd_id =
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rtnl_set_powered(netdev->index, false,
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netdev_set_iftype_down_cb, req,
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netdev_set_iftype_request_destroy);
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if (netdev->set_powered_cmd_id)
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return 0;
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}
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netdev->type = iftype;
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return 0;
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l_free(req);
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return -EIO;
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}
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static void netdev_bridge_port_event(const struct ifinfomsg *ifi, int bytes,
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@ -99,7 +99,9 @@ struct wiphy *netdev_get_wiphy(struct netdev *netdev);
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const uint8_t *netdev_get_address(struct netdev *netdev);
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uint32_t netdev_get_ifindex(struct netdev *netdev);
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enum netdev_iftype netdev_get_iftype(struct netdev *netdev);
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int netdev_set_iftype(struct netdev *netdev, enum netdev_iftype type);
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int netdev_set_iftype(struct netdev *netdev, enum netdev_iftype type,
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netdev_command_cb_t cb, void *user_data,
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netdev_destroy_func_t destroy);
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int netdev_set_4addr(struct netdev *netdev, bool use_4addr,
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netdev_command_cb_t cb, void *user_data,
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netdev_destroy_func_t destroy);
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