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platform: don't wait for udev device initializaton if there's no udev

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There's no udev running in containers, it only starts if /sys is writable. If a
hardware device is added to the container's namespace NM would not announce it.

This also removes the software link special case -- the software links will now
wait for udev initialization (in case udev is there) as well. There's no reason
to treat them differently anymore. This makes it possible to use udev properties
of the software links.

https://bugzilla.gnome.org/show_bug.cgi?id=740526
This commit is contained in:
Lubomir Rintel
2014-11-21 15:02:37 +01:00
parent b3667afa22
commit 4a05869557
7 changed files with 45 additions and 53 deletions
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50
src/platform/nm-linux-platform.c
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@@ -780,41 +780,6 @@ link_type_from_udev (NMPlatform *platform, int ifindex, const char *ifname, int
return_type (NM_LINK_TYPE_UNKNOWN, "unknown");
}
static gboolean
link_is_software (struct rtnl_link *rtnllink)
{
const char *type;
/* FIXME: replace somehow with NMLinkType or nm_platform_is_software(), but
* solve the infinite callstack problems that getting the type of a TUN/TAP
* device causes.
*/
if ( rtnl_link_get_arptype (rtnllink) == ARPHRD_INFINIBAND
&& strchr (rtnl_link_get_name (rtnllink), '.'))
return TRUE;
type = rtnl_link_get_type (rtnllink);
if (type == NULL)
return FALSE;
if (!strcmp (type, "dummy") ||
!strcmp (type, "gre") ||
!strcmp (type, "gretap") ||
!strcmp (type, "macvlan") ||
!strcmp (type, "macvtap") ||
!strcmp (type, "tun") ||
!strcmp (type, "veth") ||
!strcmp (type, "vlan") ||
!strcmp (type, "vxlan") ||
!strcmp (type, "bridge") ||
!strcmp (type, "bond") ||
!strcmp (type, "team"))
return TRUE;
return FALSE;
}
static const char *
ethtool_get_driver (const char *ifname)
{
@@ -837,10 +802,6 @@ link_is_announceable (NMPlatform *platform, struct rtnl_link *rtnllink)
{
NMLinuxPlatformPrivate *priv = NM_LINUX_PLATFORM_GET_PRIVATE (platform);
/* Software devices are always visible outside the platform */
if (link_is_software (rtnllink))
return TRUE;
/* Hardware devices must be found by udev so rules get run and tags set */
if (g_hash_table_lookup (priv->udev_devices,
GINT_TO_POINTER (rtnl_link_get_ifindex (rtnllink))))
@@ -1587,7 +1548,7 @@ announce_object (NMPlatform *platform, const struct nl_object *object, NMPlatfor
if (!init_link (platform, &device, rtnl_link))
return;
/* Skip hardware devices not yet discovered by udev. They will be
/* Skip devices not yet discovered by udev. They will be
* announced by udev_device_added(). This doesn't apply to removed
* devices, as those come either from udev_device_removed(),
* event_notification() or link_delete() which block the announcment
@@ -1596,7 +1557,7 @@ announce_object (NMPlatform *platform, const struct nl_object *object, NMPlatfor
switch (change_type) {
case NM_PLATFORM_SIGNAL_ADDED:
case NM_PLATFORM_SIGNAL_CHANGED:
if (!link_is_software (rtnl_link) && !device.driver)
if (!device.driver)
return;
break;
default:
@@ -4537,7 +4498,12 @@ setup (NMPlatform *platform)
/* And read initial device list */
enumerator = g_udev_enumerator_new (priv->udev_client);
g_udev_enumerator_add_match_subsystem (enumerator, "net");
g_udev_enumerator_add_match_is_initialized (enumerator);
/* Demand that the device is initialized (udev rules ran,
* device has a stable name now) in case udev is running
* (not in a container). */
if (access ("/sys", W_OK) == 0)
g_udev_enumerator_add_match_is_initialized (enumerator);
devices = g_udev_enumerator_execute (enumerator);
for (iter = devices; iter; iter = g_list_next (iter)) {