We already populate the netlink cache in constructed(). No need
to wait with udev devices until nm_platform_query_devices(). Just
do it right away.
Add a hack to keep 'lo' default-unmanaged. Now that we load
udev devices earlier, we end up clearing the default-unmanged
flag on 'lo', which has bad consequences.
(cherry picked from commit d6ce01f115)
We don't want error logging for nm_platform_link_add() which
tries to load the bonding module. Later we will run tests as non-root,
where modprobe will fail. Logging an error would break the tests.
(cherry picked from commit 39f2b51abb)
Add a netlink implementation for reading InfiniBand properties, but fall back to
sysfs when that isn't supported by the kernel.
(cherry picked from commit 5cf226463a)
We'd be able to do so for already existing devices, but not for devices that
are added afterwards, since gudev is hardwired not to listen for events from
kernel.
(cherry picked from commit 26aeb12749)
When compiling with -fexceptions (as we build our RPM), we must
initialize all variables with a cleanup attribute.
Fixes: 29ccb8851c
Fixes: f8a9574f7e
(cherry picked from commit f55a272ade)
Ethernet, WiFi, and VLAN used the same implementation for initial address.
Ethernet and WiFi used the same implementation (and duplicated code) for
permanent MAC address, plus they both used ethtool in what should be
generic code, which is better done in the platform.
(cherry picked from commit aba250a7d4)
If the caller requested that a bond be created, don't return success
if there was an existing bridge with the same name.
(cherry picked from commit 29ccb8851c)
Throwing away the udev_device instance is wrong. There are two cases:
- the udev-device appears, and the netlink object will never appear
(or is already gone). In this case, keeping the udev-device is ok
because we will eventually get a signal from UDev to cleanup the
device instance.
- the udev-device appears before the netlink object. In this case we
want to keep the udev instance to have it ready.
Fixes: 388b7830f3
(cherry picked from commit 7572837375)
Always intern string from udev_get_driver().
We use the result of udev_get_driver() for setting NMPlatformLink.driver.
In all other cases, we already set that value to an interned string,
which simplifies memory handling.
As it was, the lifetime of that string was tied to the lifetime of the
GUdevDevice.
This is not a stelar solution, but we assume that the overall numbers
of different drivers is limited so we don't leak large amounts of
memory.
(cherry picked from commit 3171b543dc)
link_extract_type() would return the NMLinkType and a
@type_name string. If the type was unknown, this string
was rtnl_link_get_type() (IFLA_INFO_KIND).
Split up this behavior and treat those values independently.
link_extract_type() now only detects the NMLinkType. Most users
don't care about unknown types and can just use nm_link_type_to_string()
to get a string represenation.
Only nm_platform_link_get_type_name() (and NMDeviceGeneric:type_description)
cared about a more descriptive type. For that, modify link_get_type_name()
to return nm_link_type_to_string() if NMLinkType could be detected.
As fallback, return rtnl_link_get_type().
Also, rename the field NMPlatformLink:link_type to "kind". For now this
field is mostly unused. It will be used later when refactoring platform
caching.
(cherry picked from commit e2c742c77b)
Given the name nm_link_type_to_string(), we would not expect
to find it in nm-linux-platform.c. It either should be named
nm_platform_link_type_to_string() and be put in a new
nm-platform-utils.c file, or it should be named
nm_utils_link_type_to_string() and be put in NetworkManagerUtils.h.
For now, just leave it here.
(cherry picked from commit b538adf123)
link_extract_type() would call tun_get_properties() to determine whether
the link if a TAP or TUN device. The previous implementation would
receive the ifindex, and resolve the ifname via lookup in the platform
cache.
This means, the call on link_extract_type() will only succeed to detect
the TUN/TAP properties, if the libnl object is already in the cache.
Currently that is always the case and there is no problem.
It is desireable, that we can resolve the link type of an object without
consulting the platform cache first.
(cherry picked from commit 18d611d5d2)
See "Revert "wireless: Support of IFLA_INFO_KIND rtnl attribute""
http://www.spinics.net/lists/linux-wireless/msg132219.html
The reverted kernel patch caused rtnl_link_get_type() to return "wlan"
for WiFi devices. Since NM depends on this function returning
NULL for WiFi devices so that it goes on to check the sysfs DEVTYPE
attribute, the kernel patch caused WiFi devices to show up as Generic
ones instead. That's wrong, and NM should be able to more easily
handle changes in the kernel drivers from NULL to a more descriptive
rtnl_link_get_type() return, since that's the kernel trend.
What NM should be doing here is to fall back to other detection
schemes if the type is NULL or unrecognized. Make that happen and
clean things up to use a table instead of a giant if(strcmp()) block.
https://bugzilla.gnome.org/show_bug.cgi?id=743209
(cherry picked from commit 2d527b30ff)
With NM_MORE_LOGGING disabled, we still want the compiler to evaluate
the argument list. By wrapping it in "if(FALSE)", we get compile time
checks, but the logging statement will be optimized out.
(cherry picked from commit cb6bafb9af)
Move detection of @support_user_ipv6ll to a separate function
_support_user_ipv6ll_detect() and call it immediately after the
places where we receive libnl objects from kernel, i.e.
get_kernel_object(), event_notification(), and cache_repopulate_all().
Also, whether we have support depends on the kernel and is per-system,
not per-platform-instance. Make @_support_user_ipv6ll a global variable.
This way, we don't need to pass around a NMLinuxPlatform instance.
(cherry picked from commit f15a27f9c1)
We have two hooks to modify setup of the platform singleton:
nm_linux_platform_setup() and the virtual setup() function.
On the other hand, nm_platform_setup() limits us by accepting
only a GType, instead of a prepeared platform instance.
Make the nm_platform_setup() method more flexible, so that we can
later drop the setup() hook.
(cherry picked from commit a50d77d952)
setup() can be used to initialize a NMPlatform instance that is
registered as singleton via nm_platform_setup(). It should not
be used to initialize the object.
Prior to c6529a9d74, this change was
not possible because constructed() will call back into nm_platform_*()
functions, without having the singleton instance setup.
(cherry picked from commit dc9b25f161)
Most nm_platform_*() functions operate on the platform
singleton nm_platform_get(). That made sense because the
NMPlatform instance was mainly to hook fake platform for
testing.
While the implicit argument saved some typing, I think explicit is
better. Especially, because NMPlatform could become a more usable
object then just a hook for testing.
With this change, NMPlatform instances can be used individually, not
only as a singleton instance.
Before this change, the constructor of NMLinuxPlatform could not
call any nm_platform_*() functions because the singleton was not
yet initialized. We could only instantiate an incomplete instance,
register it via nm_platform_setup(), and then complete initialization
via singleton->setup().
With this change, we can create and fully initialize NMPlatform instances
before/without setting them up them as singleton.
Also, currently there is no clear distinction between functions
that operate on the NMPlatform instance, and functions that can
be used stand-alone (e.g. nm_platform_ip4_address_to_string()).
The latter can not be mocked for testing. With this change, the
distinction becomes obvious. That is also useful because it becomes
clearer which functions make use of the platform cache and which not.
Inside nm-linux-platform.c, continue the pattern that the
self instance is named @platform. That makes sense because
its type is NMPlatform, and not NMLinuxPlatform what we
would expect from a paramter named @self.
This is a major diff that causes some pain when rebasing. Try
to rebase to the parent commit of this commit as a first step.
Then rebase on top of this commit using merge-strategy "ours".
(cherry picked from commit c6529a9d74)
The function names in linux-platform should get better prefixes
indicating whether they are related to libnl or nm objects.
Add a prefix _nlo_ for functions that operate on libnl objects.
(cherry picked from commit 7c5d361c66)
Reorder some functions in nm-platform, so that we first have independent
libnl wrappers/utils, then NMPlatform type definition, and then the
rest.
(cherry picked from commit 850af91f22)
udev doesn't know about the device yet when NM creates it internally.
NetworkManager[9275]: <info> (team0): carrier is OFF
NetworkManager[9275]: <info> (team0): new Team device (driver: 'team' ifindex: 16)
(NetworkManager:9275): GUdev-CRITICAL **: g_udev_device_get_property: assertion 'G_UDEV_IS_DEVICE (device)' failed
NetworkManager[9275]: <info> (team0): exported as /org/freedesktop/NetworkManager/Devices/5
(cherry picked from commit 8173f0f9e8)
Some out of tree drivers add Ethernet devices that are supposed to be managed
by other their tooling, e.g. VirtualBox or VMWare.
Rather than hardcoding their drivers (at least VirtualBox doesn't even set a
"driver" property in sysfs) or hardcoding a logic that identifies such devices
let's just add a possibility to blacklist them in udev. This makes it possible
for whoever who ships such a driver to ship rules that prevent NetworkManager
from managing the device itself.
Furthermore it makes it possible for the user with special needs leverage the
flexibility of udev rules to override the defaults. In the end the user can
decide to let NetworkManager manage default-unmanaged interfaces such as VEth
or turn on default-unmanaged for devices on a particular bus.
An udev rule for VirtualBox would look like this:
SUBSYSTEM=="net", ENV{INTERFACE}=="vboxnet[0-9]*", ENV{NM_UNMANAGED}="1"
(cherry picked from commit 85ee1f4a9c)
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
(cherry picked from commit 4a05869557)
