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device: don't remove routes when the interface is down

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In update update_ext_ip_config() we remove from various internal
configurations those addresses and routes that were removed externally
by users.

When the interface is brought down, the kernel automatically removes
routes associated with it and so we should not consider them as
"removed by users".

Instead, keep them so that they can be restored when the interface
comes up again.
This commit is contained in:
Beniamino Galvani 2018-09-24 16:35:25 +02:00
parent 8f07b3ac4f
commit f069c98cc9
1 changed files with 12 additions and 9 deletions
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21
src/devices/nm-device.c
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@ -12636,6 +12636,7 @@ update_ext_ip_config (NMDevice *self, int addr_family, gboolean intersect_config
NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
int ifindex;
GSList *iter;
gboolean is_up;
nm_assert_addr_family (addr_family);
@ -12643,6 +12644,8 @@ update_ext_ip_config (NMDevice *self, int addr_family, gboolean intersect_config
if (!ifindex)
return FALSE;
is_up = nm_platform_link_is_up (nm_device_get_platform (self), ifindex);
if (addr_family == AF_INET) {
g_clear_object (&priv->ext_ip_config_4);
@ -12657,15 +12660,15 @@ update_ext_ip_config (NMDevice *self, int addr_family, gboolean intersect_config
* by the user. */
if (priv->con_ip_config_4) {
nm_ip4_config_intersect (priv->con_ip_config_4, priv->ext_ip_config_4,
TRUE,
is_up,
default_route_metric_penalty_get (self, AF_INET));
}
intersect_ext_config (self, &priv->dev_ip4_config, TRUE);
intersect_ext_config (self, &priv->wwan_ip_config_4, TRUE);
intersect_ext_config (self, &priv->dev_ip4_config, is_up);
intersect_ext_config (self, &priv->wwan_ip_config_4, is_up);
for (iter = priv->vpn_configs_4; iter; iter = iter->next)
nm_ip4_config_intersect (iter->data, priv->ext_ip_config_4, TRUE, 0);
nm_ip4_config_intersect (iter->data, priv->ext_ip_config_4, is_up, 0);
}
/* Remove parts from ext_ip_config_4 to only contain the information that
@ -12709,16 +12712,16 @@ update_ext_ip_config (NMDevice *self, int addr_family, gboolean intersect_config
* by the user. */
if (priv->con_ip_config_6) {
nm_ip6_config_intersect (priv->con_ip_config_6, priv->ext_ip_config_6,
TRUE,
is_up,
default_route_metric_penalty_get (self, AF_INET6));
}
intersect_ext_config (self, &priv->ac_ip6_config, TRUE);
intersect_ext_config (self, &priv->dhcp6.ip6_config, TRUE);
intersect_ext_config (self, &priv->wwan_ip_config_6, TRUE);
intersect_ext_config (self, &priv->ac_ip6_config, is_up);
intersect_ext_config (self, &priv->dhcp6.ip6_config, is_up);
intersect_ext_config (self, &priv->wwan_ip_config_6, is_up);
for (iter = priv->vpn_configs_6; iter; iter = iter->next)
nm_ip6_config_intersect (iter->data, priv->ext_ip_config_6, TRUE, 0);
nm_ip6_config_intersect (iter->data, priv->ext_ip_config_6, is_up, 0);
if ( priv->ipv6ll_has
&& !nm_ip6_config_lookup_address (priv->ext_ip_config_6, &priv->ipv6ll_addr))