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networkd: rework idle detection logic of networkd

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This patch makes networkd stay around as long as there is more than just a
loopback interface around, or the loopback device isn't fully probed yet, or
the loopback device has a .network file attached.

In essence, this means networkd stays around now continously as it should,
unless it is running in some (container?) environment that really has no
interface except a loopback device.

Fixes #2577.
This commit is contained in:
Lennart Poettering 2016-02-15 19:11:18 +01:00
parent de08570050
commit 9dc907f9c9
1 changed files with 8 additions and 11 deletions
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19
src/network/networkd-manager.c
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@ -1091,22 +1091,19 @@ static bool manager_check_idle(void *userdata) {
assert(m);
/* Check whether we are idle now. The only case when we decide to be idle is when there's only a loopback
* device around, for which we have no configuration, and which already left the PENDING state. In all other
* cases we are not idle. */
HASHMAP_FOREACH(link, m->links, i) {
/* we are not woken on udev activity, so let's just wait for the
* pending udev event */
/* We are not woken on udev activity, so let's just wait for the pending udev event */
if (link->state == LINK_STATE_PENDING)
return false;
if (!link->network)
continue;
if ((link->flags & IFF_LOOPBACK) == 0)
return false;
/* we are not woken on netork activity, so let's stay around */
if (link_lldp_enabled(link) ||
link_ipv4ll_enabled(link) ||
link_dhcp4_server_enabled(link) ||
link_dhcp4_enabled(link) ||
link_dhcp6_enabled(link) ||
link_ipv6_accept_ra_enabled(link))
if (link->network)
return false;
}