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wifi: indicate to the kernel when critical protocols start/stop (bgo #723241)

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Add support for the kernel's Wi-Fi critical protocol indication to make
DHCP and IPv6 SLAAC more reliable.

https://bugzilla.gnome.org/show_bug.cgi?id=723241
This commit is contained in:
Dan Williams 2013-05-23 11:22:23 -05:00
parent d18f524984
commit 3eeeb9fe0d
1 changed files with 62 additions and 0 deletions
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62
src/devices/nm-device-wifi.c
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@ -866,6 +866,9 @@ deactivate (NMDevice *dev)
**/
set_current_ap (self, NULL, TRUE, FALSE);
/* Clear any critical protocol notification in the Wi-Fi stack */
wifi_utils_indicate_addressing_running (priv->wifi_data, FALSE);
/* Reset MAC address back to initial address */
nm_device_set_hw_addr (dev, priv->initial_hw_addr, "reset", LOGD_WIFI);
@ -3056,6 +3059,53 @@ out:
return ret;
}
static NMActStageReturn
act_stage3_ip4_config_start (NMDevice *device,
NMIP4Config **out_config,
NMDeviceStateReason *reason)
{
NMDeviceWifiPrivate *priv = NM_DEVICE_WIFI_GET_PRIVATE (device);
NMConnection *connection;
NMSettingIP4Config *s_ip4;
const char *method = NM_SETTING_IP4_CONFIG_METHOD_AUTO;
connection = nm_device_get_connection (device);
g_assert (connection);
s_ip4 = nm_connection_get_setting_ip4_config (connection);
if (s_ip4)
method = nm_setting_ip4_config_get_method (s_ip4);
/* Indicate that a critical protocol is about to start */
if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_AUTO) == 0)
wifi_utils_indicate_addressing_running (priv->wifi_data, TRUE);
return NM_DEVICE_CLASS (nm_device_wifi_parent_class)->act_stage3_ip4_config_start (device, out_config, reason);
}
static NMActStageReturn
act_stage3_ip6_config_start (NMDevice *device,
NMIP6Config **out_config,
NMDeviceStateReason *reason)
{
NMDeviceWifiPrivate *priv = NM_DEVICE_WIFI_GET_PRIVATE (device);
NMConnection *connection;
NMSettingIP6Config *s_ip6;
const char *method = NM_SETTING_IP6_CONFIG_METHOD_AUTO;
connection = nm_device_get_connection (device);
g_assert (connection);
s_ip6 = nm_connection_get_setting_ip6_config (connection);
if (s_ip6)
method = nm_setting_ip6_config_get_method (s_ip6);
/* Indicate that a critical protocol is about to start */
if (strcmp (method, NM_SETTING_IP6_CONFIG_METHOD_AUTO) == 0 ||
strcmp (method, NM_SETTING_IP6_CONFIG_METHOD_DHCP) == 0)
wifi_utils_indicate_addressing_running (priv->wifi_data, TRUE);
return NM_DEVICE_CLASS (nm_device_wifi_parent_class)->act_stage3_ip6_config_start (device, out_config, reason);
}
static void
ip4_config_pre_commit (NMDevice *device, NMIP4Config *config)
{
@ -3204,6 +3254,9 @@ activation_success_handler (NMDevice *dev)
connection = nm_act_request_get_connection (req);
g_assert (connection);
/* Clear any critical protocol notification in the wifi stack */
wifi_utils_indicate_addressing_running (priv->wifi_data, FALSE);
/* Clear wireless secrets tries on success */
g_object_set_data (G_OBJECT (connection), WIRELESS_SECRETS_TRIES, NULL);
@ -3273,6 +3326,9 @@ activation_failure_handler (NMDevice *dev)
/* Clear wireless secrets tries on failure */
g_object_set_data (G_OBJECT (connection), WIRELESS_SECRETS_TRIES, NULL);
/* Clear any critical protocol notification in the wifi stack */
wifi_utils_indicate_addressing_running (NM_DEVICE_WIFI_GET_PRIVATE (dev)->wifi_data, FALSE);
}
static gboolean
@ -3342,6 +3398,10 @@ device_state_changed (NMDevice *device,
if (priv->supplicant.iface)
nm_supplicant_interface_disconnect (priv->supplicant.iface);
break;
case NM_DEVICE_STATE_IP_CHECK:
/* Clear any critical protocol notification in the wifi stack */
wifi_utils_indicate_addressing_running (priv->wifi_data, FALSE);
break;
case NM_DEVICE_STATE_ACTIVATED:
activation_success_handler (device);
break;
@ -3571,6 +3631,8 @@ nm_device_wifi_class_init (NMDeviceWifiClass *klass)
parent_class->act_stage1_prepare = act_stage1_prepare;
parent_class->act_stage2_config = act_stage2_config;
parent_class->ip4_config_pre_commit = ip4_config_pre_commit;
parent_class->act_stage3_ip4_config_start = act_stage3_ip4_config_start;
parent_class->act_stage3_ip6_config_start = act_stage3_ip6_config_start;
parent_class->act_stage4_ip4_config_timeout = act_stage4_ip4_config_timeout;
parent_class->act_stage4_ip6_config_timeout = act_stage4_ip6_config_timeout;
parent_class->deactivate = deactivate;