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device: force restart of IP method during reapply

Browse source 
Scenario:
Have a connection with DHCPv4 and a default-route. When externally
removing the default route (`ip route delete 0.0.0.0/0`) and issuing
`nmcli device reapply $IF`, the default route was not restored.
That was because when externally removing the default route,
we would remove the gateway from priv->con_ip4_config (see
update_ip4_config()). Later, when reapplying the connection,
the IP method doesn't actually change. So we would not restart
DHCP and thus there is no gateway around to add the default route.
The default route would only be restored after receiving a DHCP lease
in the far future.

Fix that, by always restarting the IP method.
This commit is contained in:
Thomas Haller 2017-03-16 14:54:16 +01:00
parent 624347baf7
commit 6466b5da6a
3 changed files with 31 additions and 21 deletions
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2
src/devices/nm-device-vlan.c
View file

@ -121,7 +121,7 @@ parent_hwaddr_maybe_changed (NMDevice *parent,
*/
s_ip6 = nm_connection_get_setting_ip6_config (connection);
if (s_ip6)
nm_device_reactivate_ip6_config (NM_DEVICE (self), s_ip6, s_ip6);
nm_device_reactivate_ip6_config (NM_DEVICE (self), s_ip6, s_ip6, FALSE);
}
}

44
src/devices/nm-device.c
View file

@ -8418,7 +8418,8 @@ _nm_device_hash_check_invalid_keys (GHashTable *hash, const char *setting_name,
void
nm_device_reactivate_ip4_config (NMDevice *self,
NMSettingIPConfig *s_ip4_old,
NMSettingIPConfig *s_ip4_new)
NMSettingIPConfig *s_ip4_new,
gboolean force_restart)
{
NMDevicePrivate *priv;
const char *method_old, *method_new;
@ -8434,14 +8435,17 @@ nm_device_reactivate_ip4_config (NMDevice *self,
s_ip4_new,
nm_device_get_ip4_route_metric (self));
method_old = s_ip4_old ?
nm_setting_ip_config_get_method (s_ip4_old) :
NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
method_new = s_ip4_new ?
nm_setting_ip_config_get_method (s_ip4_new) :
NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
if (!force_restart) {
method_old = s_ip4_old
? nm_setting_ip_config_get_method (s_ip4_old)
: NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
method_new = s_ip4_new
? nm_setting_ip_config_get_method (s_ip4_new)
: NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
force_restart = !nm_streq0 (method_old, method_new);
}
if (!nm_streq0 (method_old, method_new)) {
if (force_restart) {
_cleanup_ip4_pre (self, CLEANUP_TYPE_DECONFIGURE);
_set_ip_state (self, AF_INET, IP_WAIT);
if (!nm_device_activate_stage3_ip4_start (self))
@ -8456,7 +8460,8 @@ nm_device_reactivate_ip4_config (NMDevice *self,
void
nm_device_reactivate_ip6_config (NMDevice *self,
NMSettingIPConfig *s_ip6_old,
NMSettingIPConfig *s_ip6_new)
NMSettingIPConfig *s_ip6_new,
gboolean force_restart)
{
NMDevicePrivate *priv;
const char *method_old, *method_new;
@ -8472,14 +8477,17 @@ nm_device_reactivate_ip6_config (NMDevice *self,
s_ip6_new,
nm_device_get_ip6_route_metric (self));
method_old = s_ip6_old ?
nm_setting_ip_config_get_method (s_ip6_old) :
NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
method_new = s_ip6_new ?
nm_setting_ip_config_get_method (s_ip6_new) :
NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
if (!force_restart) {
method_old = s_ip6_old
? nm_setting_ip_config_get_method (s_ip6_old)
: NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
method_new = s_ip6_new
? nm_setting_ip_config_get_method (s_ip6_new)
: NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
force_restart = !nm_streq0 (method_old, method_new);
}
if (!nm_streq0 (method_old, method_new)) {
if (force_restart) {
_cleanup_ip6_pre (self, CLEANUP_TYPE_DECONFIGURE);
_set_ip_state (self, AF_INET6, IP_WAIT);
if (!nm_device_activate_stage3_ip6_start (self))
@ -8693,8 +8701,8 @@ check_and_reapply_connection (NMDevice *self,
s_ip6_old = nm_connection_get_setting_ip6_config (con_old);
s_ip6_new = nm_connection_get_setting_ip6_config (con_new);
nm_device_reactivate_ip4_config (self, s_ip4_old, s_ip4_new);
nm_device_reactivate_ip6_config (self, s_ip6_old, s_ip6_new);
nm_device_reactivate_ip4_config (self, s_ip4_old, s_ip4_new, TRUE);
nm_device_reactivate_ip6_config (self, s_ip6_old, s_ip6_new, TRUE);
reactivate_proxy_config (self);

6
src/devices/nm-device.h
View file

@ -657,10 +657,12 @@ void nm_device_update_firewall_zone (NMDevice *self);
void nm_device_update_metered (NMDevice *self);
void nm_device_reactivate_ip4_config (NMDevice *device,
NMSettingIPConfig *s_ip4_old,
NMSettingIPConfig *s_ip4_new);
NMSettingIPConfig *s_ip4_new,
gboolean force_restart);
void nm_device_reactivate_ip6_config (NMDevice *device,
NMSettingIPConfig *s_ip6_old,
NMSettingIPConfig *s_ip6_new);
NMSettingIPConfig *s_ip6_new,
gboolean force_restart);
gboolean nm_device_update_hw_address (NMDevice *self);
void nm_device_update_initial_hw_address (NMDevice *self);