mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-02-05 15:50:36 +01:00
device: refactor scheduling the activation source
Every activation-source handler first cleared the current activation-source (activation_source_clear()) and later returned FALSE/G_SOURCE_REMOVE. Do not directly attach the handlers to g_idle_add(). Instead wrap the actual handler. This wrapper - always clears the activation source first - always returns G_SOURCE_REMOVE - does trace logging about invoking the handler This also avoids a possibility for a bug where the handler returns G_SOURCE_REMOVE, without also clearing activation_source_clear().
This commit is contained in:
Thomas Haller
parent
d4d2e65eb7
commit
78ca961c0f
1 changed files with 154 additions and 107 deletions
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@ -135,6 +135,13 @@ enum {
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#define PENDING_ACTION_DHCP6 "dhcp6"
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#define PENDING_ACTION_AUTOCONF6 "autoconf6"
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typedef void (*ActivationHandleFunc) (NMDevice *self);
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typedef struct {
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ActivationHandleFunc func;
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guint id;
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} ActivationHandleData;
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typedef enum {
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CLEANUP_TYPE_DECONFIGURE,
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CLEANUP_TYPE_KEEP,
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@ -228,13 +235,11 @@ typedef struct {
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NMActRequest * queued_act_request;
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gboolean queued_act_request_is_waiting_for_carrier;
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NMActRequest * act_request;
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guint act_source_id;
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gpointer act_source_func;
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guint act_source6_id;
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gpointer act_source6_func;
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ActivationHandleData act_handle4; /* for layer2 and IPv4. */
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ActivationHandleData act_handle6;
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guint recheck_assume_id;
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struct {
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guint call_id;
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guint call_id;
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NMDeviceStateReason available_reason;
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NMDeviceStateReason unavailable_reason;
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} recheck_available;
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@ -376,6 +381,9 @@ static void _carrier_wait_check_queued_act_request (NMDevice *self);
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static gboolean nm_device_get_default_unmanaged (NMDevice *self);
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static const char *_activation_func_to_string (ActivationHandleFunc func);
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static void activation_source_handle_cb (NMDevice *self, int family);
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static void _set_state_full (NMDevice *self,
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NMDeviceState state,
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NMDeviceStateReason reason,
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@ -2776,63 +2784,119 @@ dnsmasq_state_changed_cb (NMDnsMasqManager *manager, guint32 status, gpointer us
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}
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}
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static void
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activation_source_clear (NMDevice *self, gboolean remove_source, int family)
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/*****************************************************************************/
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static gboolean
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activation_source_handle_cb4 (gpointer user_data)
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{
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activation_source_handle_cb (user_data, AF_INET);
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return G_SOURCE_REMOVE;
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}
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static gboolean
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activation_source_handle_cb6 (gpointer user_data)
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{
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activation_source_handle_cb (user_data, AF_INET6);
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return G_SOURCE_REMOVE;
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}
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static ActivationHandleData *
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activation_source_get_by_family (NMDevice *self,
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int family,
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GSourceFunc *out_idle_func)
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{
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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guint *act_source_id;
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gpointer *act_source_func;
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if (family == AF_INET6) {
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act_source_id = &priv->act_source6_id;
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act_source_func = &priv->act_source6_func;
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NM_SET_OUT (out_idle_func, activation_source_handle_cb6);
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return &priv->act_handle6;
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} else {
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act_source_id = &priv->act_source_id;
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act_source_func = &priv->act_source_func;
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}
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if (*act_source_id) {
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if (remove_source)
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g_source_remove (*act_source_id);
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*act_source_id = 0;
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*act_source_func = NULL;
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NM_SET_OUT (out_idle_func, activation_source_handle_cb4);
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g_return_val_if_fail (family == AF_INET, &priv->act_handle4);
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return &priv->act_handle4;
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}
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}
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static void
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activation_source_schedule (NMDevice *self, GSourceFunc func, int family)
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activation_source_clear (NMDevice *self, int family)
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{
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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guint *act_source_id;
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gpointer *act_source_func;
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ActivationHandleData *act_data;
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if (family == AF_INET6) {
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act_source_id = &priv->act_source6_id;
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act_source_func = &priv->act_source6_func;
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} else {
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act_source_id = &priv->act_source_id;
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act_source_func = &priv->act_source_func;
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act_data = activation_source_get_by_family (self, family, NULL);
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if (act_data->id) {
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_LOGD (LOGD_DEVICE, "activation-stage: clear %s,%d (id %u)",
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_activation_func_to_string (act_data->func), family, act_data->id);
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nm_clear_g_source (&act_data->id);
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act_data->func = NULL;
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}
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if (*act_source_id) {
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if (*act_source_func == func) {
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/* Don't bother rescheduling the same function that's about to
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* run anyway. Fixes issues with crappy wireless drivers sending
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* streams of associate events before NM has had a chance to process
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* the first one.
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*/
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_LOGD (LOGD_DEVICE, "activation stage already scheduled");
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return;
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} else {
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_LOGW (LOGD_DEVICE, "a different activation stage already scheduled");
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activation_source_clear (self, TRUE, family);
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}
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}
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*act_source_id = g_idle_add (func, self);
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*act_source_func = func;
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}
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static void
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activation_source_handle_cb (NMDevice *self, int family)
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{
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ActivationHandleData *act_data, a;
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g_return_if_fail (NM_IS_DEVICE (self));
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act_data = activation_source_get_by_family (self, family, NULL);
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g_return_if_fail (act_data->id);
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g_return_if_fail (act_data->func);
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a = *act_data;
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act_data->func = NULL;
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act_data->id = 0;
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_LOGD (LOGD_DEVICE, "activation-stage: invoke %s,%d (id %u)",
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_activation_func_to_string (a.func), family, a.id);
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a.func (self);
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_LOGD (LOGD_DEVICE, "activation-stage: complete %s,%d (id %u)",
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_activation_func_to_string (a.func), family, a.id);
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}
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static void
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activation_source_schedule (NMDevice *self, ActivationHandleFunc func, int family)
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{
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ActivationHandleData *act_data;
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GSourceFunc source_func;
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guint new_id = 0;
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act_data = activation_source_get_by_family (self, family, &source_func);
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if (act_data->id && act_data->func != func) {
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/* Don't bother rescheduling the same function that's about to
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* run anyway. Fixes issues with crappy wireless drivers sending
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* streams of associate events before NM has had a chance to process
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* the first one.
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*/
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_LOGD (LOGD_DEVICE, "activation-stage: already scheduled %s,%d (id %u)",
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_activation_func_to_string (func), family, act_data->id);
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return;
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}
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new_id = g_idle_add (source_func, self);
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if (act_data->id) {
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_LOGW (LOGD_DEVICE, "activation-stage: schedule %s,%d which replaces %s,%d (id %u -> %u)",
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_activation_func_to_string (func), family,
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_activation_func_to_string (act_data->func), family,
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act_data->id, new_id);
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nm_clear_g_source (&act_data->id);
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} else {
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_LOGD (LOGD_DEVICE, "activation-stage: schedule %s,%d (id %u)",
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_activation_func_to_string (func), family, new_id);
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}
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act_data->func = func;
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act_data->id = new_id;
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}
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/*****************************************************************************/
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static gboolean
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get_ip_config_may_fail (NMDevice *self, int family)
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{
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@ -2907,18 +2971,14 @@ act_stage1_prepare (NMDevice *self, NMDeviceStateReason *reason)
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* Prepare for device activation
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*
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*/
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static gboolean
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nm_device_activate_stage1_device_prepare (gpointer user_data)
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static void
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nm_device_activate_stage1_device_prepare (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActStageReturn ret = NM_ACT_STAGE_RETURN_SUCCESS;
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NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
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NMActiveConnection *active = NM_ACTIVE_CONNECTION (priv->act_request);
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, 0);
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priv->ip4_state = priv->ip6_state = IP_NONE;
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/* Notify the new ActiveConnection along with the state change */
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@ -2943,7 +3003,6 @@ nm_device_activate_stage1_device_prepare (gpointer user_data)
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out:
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_LOGD (LOGD_DEVICE, "Activation: Stage 1 of 5 (Device Prepare) complete.");
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return FALSE;
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}
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@ -2963,7 +3022,7 @@ nm_device_activate_schedule_stage1_device_prepare (NMDevice *self)
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priv = NM_DEVICE_GET_PRIVATE (self);
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g_return_if_fail (priv->act_request);
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activation_source_schedule (self, nm_device_activate_stage1_device_prepare, 0);
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activation_source_schedule (self, nm_device_activate_stage1_device_prepare, AF_INET);
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_LOGD (LOGD_DEVICE, "Activation: Stage 1 of 5 (Device Prepare) scheduled...");
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}
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@ -2982,10 +3041,9 @@ act_stage2_config (NMDevice *self, NMDeviceStateReason *reason)
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* for wireless devices, set SSID, keys, etc.
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*
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*/
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static gboolean
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nm_device_activate_stage2_device_config (gpointer user_data)
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static void
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nm_device_activate_stage2_device_config (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActStageReturn ret;
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NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
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@ -2993,9 +3051,6 @@ nm_device_activate_stage2_device_config (gpointer user_data)
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NMActiveConnection *active = NM_ACTIVE_CONNECTION (priv->act_request);
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GSList *iter;
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, 0);
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_LOGD (LOGD_DEVICE, "Activation: Stage 2 of 5 (Device Configure) starting...");
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nm_device_state_changed (self, NM_DEVICE_STATE_CONFIG, NM_DEVICE_STATE_REASON_NONE);
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@ -3037,7 +3092,6 @@ nm_device_activate_stage2_device_config (gpointer user_data)
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out:
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_LOGD (LOGD_DEVICE, "Activation: Stage 2 of 5 (Device Configure) complete.");
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return FALSE;
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}
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@ -3082,7 +3136,7 @@ nm_device_activate_schedule_stage2_device_config (NMDevice *self)
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}
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}
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activation_source_schedule (self, nm_device_activate_stage2_device_config, 0);
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activation_source_schedule (self, nm_device_activate_stage2_device_config, AF_INET);
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_LOGD (LOGD_DEVICE, "Activation: Stage 2 of 5 (Device Configure) scheduled...");
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}
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@ -5496,17 +5550,13 @@ nm_device_activate_stage3_ip6_start (NMDevice *self)
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* Begin automatic/manual IP configuration
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*
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*/
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static gboolean
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nm_device_activate_stage3_ip_config_start (gpointer user_data)
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static void
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nm_device_activate_stage3_ip_config_start (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActiveConnection *master;
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NMDevice *master_device;
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, 0);
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priv->ip4_state = priv->ip6_state = IP_WAIT;
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_LOGD (LOGD_DEVICE, "Activation: Stage 3 of 5 (IP Configure Start) started...");
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@ -5548,7 +5598,6 @@ nm_device_activate_stage3_ip_config_start (gpointer user_data)
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out:
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_LOGD (LOGD_DEVICE, "Activation: Stage 3 of 5 (IP Configure Start) complete.");
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return FALSE;
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}
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@ -5578,7 +5627,7 @@ fw_change_zone_cb (NMFirewallManager *firewall_manager,
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if (priv->state == NM_DEVICE_STATE_IP_CHECK)
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nm_device_start_ip_check (self);
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else {
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activation_source_schedule (self, nm_device_activate_stage3_ip_config_start, 0);
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activation_source_schedule (self, nm_device_activate_stage3_ip_config_start, AF_INET);
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_LOGD (LOGD_DEVICE, "Activation: Stage 3 of 5 (IP Configure Start) scheduled.");
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}
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}
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@ -5612,7 +5661,7 @@ nm_device_activate_schedule_stage3_ip_config_start (NMDevice *self)
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if (nm_device_uses_assumed_connection (self)) {
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_LOGD (LOGD_DEVICE, "Activation: skip setting firewall zone '%s' for assumed device", zone ? zone : "default");
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activation_source_schedule (self, nm_device_activate_stage3_ip_config_start, 0);
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activation_source_schedule (self, nm_device_activate_stage3_ip_config_start, AF_INET);
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_LOGD (LOGD_DEVICE, "Activation: Stage 3 of 5 (IP Configure Start) scheduled.");
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return;
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}
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@ -5643,17 +5692,13 @@ act_stage4_ip4_config_timeout (NMDevice *self, NMDeviceStateReason *reason)
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* Time out on retrieving the IPv4 config.
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*
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*/
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static gboolean
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nm_device_activate_ip4_config_timeout (gpointer user_data)
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static void
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nm_device_activate_ip4_config_timeout (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE;
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NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, AF_INET);
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_LOGD (LOGD_DEVICE | LOGD_IP4, "Activation: Stage 4 of 5 (IPv4 Configure Timeout) started...");
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ret = NM_DEVICE_GET_CLASS (self)->act_stage4_ip4_config_timeout (self, &reason);
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@ -5671,7 +5716,6 @@ nm_device_activate_ip4_config_timeout (gpointer user_data)
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out:
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_LOGD (LOGD_DEVICE | LOGD_IP4, "Activation: Stage 4 of 5 (IPv4 Configure Timeout) complete.");
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return FALSE;
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}
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@ -5715,17 +5759,13 @@ act_stage4_ip6_config_timeout (NMDevice *self, NMDeviceStateReason *reason)
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* Time out on retrieving the IPv6 config.
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*
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*/
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static gboolean
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nm_device_activate_ip6_config_timeout (gpointer user_data)
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static void
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nm_device_activate_ip6_config_timeout (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE;
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NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, AF_INET6);
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_LOGD (LOGD_DEVICE | LOGD_IP6, "Activation: Stage 4 of 5 (IPv6 Configure Timeout) started...");
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ret = NM_DEVICE_GET_CLASS (self)->act_stage4_ip6_config_timeout (self, &reason);
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@ -5743,7 +5783,6 @@ nm_device_activate_ip6_config_timeout (gpointer user_data)
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out:
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_LOGD (LOGD_DEVICE | LOGD_IP6, "Activation: Stage 4 of 5 (IPv6 Configure Timeout) complete.");
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return FALSE;
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}
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@ -5971,10 +6010,9 @@ arp_announce (NMDevice *self)
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priv->arp_round2_id = g_timeout_add_seconds (2, arp_announce_round2, self);
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}
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static gboolean
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nm_device_activate_ip4_config_commit (gpointer user_data)
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static void
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nm_device_activate_ip4_config_commit (NMDevice *self)
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{
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NMDevice *self = NM_DEVICE (user_data);
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NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
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NMActRequest *req;
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const char *method;
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@ -5982,9 +6020,6 @@ nm_device_activate_ip4_config_commit (gpointer user_data)
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NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
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int ip_ifindex;
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/* Clear the activation source ID now that this stage has run */
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activation_source_clear (self, FALSE, AF_INET);
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_LOGD (LOGD_DEVICE, "Activation: Stage 5 of 5 (IPv4 Commit) started...");
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req = nm_device_get_act_request (self);
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@ -6046,8 +6081,6 @@ nm_device_activate_ip4_config_commit (gpointer user_data)
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out:
|
||||
_LOGD (LOGD_DEVICE, "Activation: Stage 5 of 5 (IPv4 Commit) complete.");
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -6099,19 +6132,15 @@ nm_device_activate_ip4_state_in_wait (NMDevice *self)
|
|||
return NM_DEVICE_GET_PRIVATE (self)->ip4_state == IP_WAIT;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
nm_device_activate_ip6_config_commit (gpointer user_data)
|
||||
static void
|
||||
nm_device_activate_ip6_config_commit (NMDevice *self)
|
||||
{
|
||||
NMDevice *self = NM_DEVICE (user_data);
|
||||
NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
|
||||
NMActRequest *req;
|
||||
NMConnection *connection;
|
||||
NMDeviceStateReason reason = NM_DEVICE_STATE_REASON_NONE;
|
||||
int ip_ifindex;
|
||||
|
||||
/* Clear the activation source ID now that this stage has run */
|
||||
activation_source_clear (self, FALSE, AF_INET6);
|
||||
|
||||
_LOGD (LOGD_DEVICE, "Activation: Stage 5 of 5 (IPv6 Commit) started...");
|
||||
|
||||
req = nm_device_get_act_request (self);
|
||||
|
|
@ -6158,8 +6187,6 @@ nm_device_activate_ip6_config_commit (gpointer user_data)
|
|||
}
|
||||
|
||||
_LOGD (LOGD_DEVICE, "Activation: Stage 5 of 5 (IPv6 Commit) complete.");
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -6629,7 +6656,7 @@ nm_device_is_activating (NMDevice *self)
|
|||
* handler is actually run. If there's an activation handler scheduled
|
||||
* we're activating anyway.
|
||||
*/
|
||||
return priv->act_source_id ? TRUE : FALSE;
|
||||
return priv->act_handle4.id ? TRUE : FALSE;
|
||||
}
|
||||
|
||||
/* IP Configuration stuff */
|
||||
|
|
@ -8386,8 +8413,8 @@ _cancel_activation (NMDevice *self)
|
|||
ip_check_gw_ping_cleanup (self);
|
||||
|
||||
/* Break the activation chain */
|
||||
activation_source_clear (self, TRUE, AF_INET);
|
||||
activation_source_clear (self, TRUE, AF_INET6);
|
||||
activation_source_clear (self, AF_INET);
|
||||
activation_source_clear (self, AF_INET6);
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -8819,7 +8846,7 @@ _set_state_full (NMDevice *self,
|
|||
*/
|
||||
if ( (priv->state == state)
|
||||
&& !(state == NM_DEVICE_STATE_UNAVAILABLE && priv->firmware_missing)) {
|
||||
_LOGt (LOGD_DEVICE, "device state change: %s -> %s (reason '%s') [%d %d %d] (skip due to missing firmware)",
|
||||
_LOGD (LOGD_DEVICE, "device state change: %s -> %s (reason '%s') [%d %d %d] (skip due to missing firmware)",
|
||||
state_to_string (old_state),
|
||||
state_to_string (state),
|
||||
reason_to_string (reason),
|
||||
|
|
@ -9399,6 +9426,26 @@ spec_match_list (NMDevice *self, const GSList *specs)
|
|||
|
||||
/***********************************************************/
|
||||
|
||||
static const char *
|
||||
_activation_func_to_string (ActivationHandleFunc func)
|
||||
{
|
||||
#define FUNC_TO_STRING_CHECK_AND_RETURN(func, f) \
|
||||
G_STMT_START { \
|
||||
if ((func) == (f)) \
|
||||
return #f; \
|
||||
} G_STMT_END
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_stage1_device_prepare);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_stage2_device_config);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_stage3_ip_config_start);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_ip4_config_timeout);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_ip6_config_timeout);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_ip4_config_commit);
|
||||
FUNC_TO_STRING_CHECK_AND_RETURN (func, nm_device_activate_ip6_config_commit);
|
||||
g_return_val_if_reached ("unknown");
|
||||
}
|
||||
|
||||
/***********************************************************/
|
||||
|
||||
#define DEFAULT_AUTOCONNECT TRUE
|
||||
|
||||
static void
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue