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device: apply static addresses immediately for DHCPv4 method

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When the IPv4 method is 'auto' and there are static addresses
configured in the connection, start a DAD probe for the static
addresses and apply them immediately on success, without waiting for
DHCP to complete.

Note that if the static address is in the same subnet of the DHCP one,
when we add the DHCP address we want it to be primary and so we will
remove the static address temporarily to achieve the right order of
addresses.

https://bugzilla.redhat.com/show_bug.cgi?id=1369905
This commit is contained in:
Beniamino Galvani 2018-07-06 11:18:49 +02:00
parent 4444db6b6f
commit 7b7c3c0889
1 changed files with 54 additions and 25 deletions
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79
src/devices/nm-device.c
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@ -6380,15 +6380,30 @@ acd_data_destroy (gpointer ptr, GClosure *closure)
static void
ipv4_manual_method_apply (NMDevice *self, NMIP4Config **configs, gboolean success)
{
NMConnection *connection;
const char *method;
NMIP4Config *empty;
if (success) {
connection = nm_device_get_applied_connection (self);
nm_assert (connection);
method = nm_utils_get_ip_config_method (connection, NM_TYPE_SETTING_IP4_CONFIG);
nm_assert (NM_IN_STRSET (method,
NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
NM_SETTING_IP4_CONFIG_METHOD_AUTO));
if (!success) {
nm_device_ip_method_failed (self, AF_INET,
NM_DEVICE_STATE_REASON_IP_ADDRESS_DUPLICATE);
return;
}
if (nm_streq (method, NM_SETTING_IP4_CONFIG_METHOD_MANUAL)) {
empty = _ip4_config_new (self);
nm_device_activate_schedule_ip4_config_result (self, empty);
g_object_unref (empty);
} else {
nm_device_ip_method_failed (self, AF_INET,
NM_DEVICE_STATE_REASON_IP_ADDRESS_DUPLICATE);
if (NM_DEVICE_GET_PRIVATE (self)->ip4_state != IP_DONE)
ip_config_merge_and_apply (self, AF_INET, TRUE);
}
}
@ -7638,30 +7653,44 @@ act_stage3_ip4_config_start (NMDevice *self,
method = nm_utils_get_ip_config_method (connection, NM_TYPE_SETTING_IP4_CONFIG);
/* Start IPv4 addressing based on the method requested */
if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_AUTO) == 0) {
ret = dhcp4_start (self);
if (ret == NM_ACT_STAGE_RETURN_FAILURE)
NM_SET_OUT (out_failure_reason, NM_DEVICE_STATE_REASON_DHCP_START_FAILED);
} else if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_LINK_LOCAL) == 0) {
if (NM_IN_STRSET (method,
NM_SETTING_IP4_CONFIG_METHOD_AUTO,
NM_SETTING_IP4_CONFIG_METHOD_MANUAL)) {
NMSettingIPConfig *s_ip4;
NMIP4Config **configs, *config;
guint num_addresses;
s_ip4 = nm_connection_get_setting_ip4_config (connection);
g_return_val_if_fail (s_ip4, NM_ACT_STAGE_RETURN_FAILURE);
num_addresses = nm_setting_ip_config_get_num_addresses (s_ip4);
if (nm_streq (method, NM_SETTING_IP4_CONFIG_METHOD_AUTO)) {
ret = dhcp4_start (self);
if (ret == NM_ACT_STAGE_RETURN_FAILURE) {
NM_SET_OUT (out_failure_reason, NM_DEVICE_STATE_REASON_DHCP_START_FAILED);
return ret;
}
} else {
g_return_val_if_fail (num_addresses != 0, NM_ACT_STAGE_RETURN_FAILURE);
ret = NM_ACT_STAGE_RETURN_POSTPONE;
}
if (num_addresses) {
config = _ip4_config_new (self);
nm_ip4_config_merge_setting (config,
nm_connection_get_setting_ip4_config (connection),
NM_SETTING_CONNECTION_MDNS_DEFAULT,
nm_device_get_route_table (self, AF_INET, TRUE),
nm_device_get_route_metric (self, AF_INET));
configs = g_new0 (NMIP4Config *, 2);
configs[0] = config;
ipv4_dad_start (self, configs, ipv4_manual_method_apply);
}
} else if (nm_streq (method, NM_SETTING_IP4_CONFIG_METHOD_LINK_LOCAL)) {
ret = ipv4ll_start (self);
if (ret == NM_ACT_STAGE_RETURN_FAILURE)
NM_SET_OUT (out_failure_reason, NM_DEVICE_STATE_REASON_AUTOIP_START_FAILED);
} else if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_MANUAL) == 0) {
NMIP4Config **configs, *config;
config = _ip4_config_new (self);
nm_ip4_config_merge_setting (config,
nm_connection_get_setting_ip4_config (connection),
NM_SETTING_CONNECTION_MDNS_DEFAULT,
nm_device_get_route_table (self, AF_INET, TRUE),
nm_device_get_route_metric (self, AF_INET));
configs = g_new0 (NMIP4Config *, 2);
configs[0] = config;
ipv4_dad_start (self, configs, ipv4_manual_method_apply);
ret = NM_ACT_STAGE_RETURN_POSTPONE;
} else if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_SHARED) == 0) {
} else if (nm_streq (method, NM_SETTING_IP4_CONFIG_METHOD_SHARED)) {
if (out_config) {
*out_config = shared4_new_config (self, connection);
if (*out_config) {
@ -7673,7 +7702,7 @@ act_stage3_ip4_config_start (NMDevice *self,
}
} else
g_return_val_if_reached (NM_ACT_STAGE_RETURN_FAILURE);
} else if (strcmp (method, NM_SETTING_IP4_CONFIG_METHOD_DISABLED) == 0)
} else if (nm_streq (method, NM_SETTING_IP4_CONFIG_METHOD_DISABLED))
ret = NM_ACT_STAGE_RETURN_SUCCESS;
else
_LOGW (LOGD_IP4, "unhandled IPv4 config method '%s'; will fail", method);