We currently don't manage a veth inside a container despite we should because
it's an externally configured software interface and thus waits for IFF_UP.
Given veths are prevented from being managed outside of a container by an udev
rule anyway it's safe to lift the external IFF_UP requirement for them.
NM core uses nm-logging which is entirely configurable at runtime.
Other components use glib-logging, which can also be partly configured
via G_MESSAGES_DEBUG.
It makes sense to have a compile time option to enable some
logging statements that are only useful for heavy debugging.
For glib-logging, this is a way to enable/disable extra logging.
For nm-logging, we could alternatively configure a least log-level
that is enabled at compile time (that way, we could configure to prune all
LOGL_TRACE logging). While that might be useful (too), this gives
an alternative way to disable/enable logging.
Add a configure option --enable-more-logging and a NM_MORE_LOGGING define
for that.
If we don't find this useful after a while, we can simply remove it,
because our logging statements are not part of a "stable" behavior.
NM already has two kinds of assertions:
- g_assert*(), conditionally compiled via #ifndef G_DISABLE_ASSERT
- g_return*(), conditionally compiled via #ifndef G_DISABLE_CHECKS
In theory, one should be able to disable both asserts and NM should
still work correctly (and possibly more efficient). In practice,
hardly anybody is testing such a configuration and it might be broken.
Especially, we don't disable asserts for production builds, both because
of less test coverage and because it might reduce our ability to debug.
Add a new configure option --enable-more-asserts, which defines
NM_MORE_ASSERTS and nm_assert(). This is for expensive asserts,
that -- contrary to the asserts above -- are disabled by default.
This is useful for extended debugging.
For tests with assert-logging enabled, we already printed
the message with g_print(), instead of g_message().
We always want to print this value, because it is important
to reproduce a test failure. Hence, just (always) print
directly to stdout.
Also, add a leading newline, because the output was attached
to the previous line.
Some dual-band access points use the same BSSID in both the 5GHz
and 2.4GHz bands, so obviously frequency must be taken into account
when matching. But no AP should ever use the same SSID/BSSID pair
concurrently in the same band on different frequencies.
Some APs also dynamically channel hop when they detect interference,
or when they restart, they do so on a different channel after finding
the channel with the lowest interference. To assure that we don't
end up with stale scan list entries when the AP has switched to
another channel in the same band, fall back to band matching
when merging new scan results.
The only reason to allow lazy matching was to update a fake
current AP when its real scan result comes in. Now that NM
tracks the current AP based on the the supplicant's current
BSS, a fake current AP will be replaced when the real scan
result arrives. So it's pointless to update the fake one
when it'll just be removed soon.
Instead of keeping track of it internally, and attempting to fuzzy-match
access points and stuff, just use the supplicant's information. If the
supplicant doesn't know what AP it's talking to, then we've got more
problems than just NM code.
The theory here is that when starting activation, we'll use the given
access point from the scan list that the supplicant already knows about.
If there isn't one yet (adhoc, hidden, or AP mode) then we'll create
a fake AP and add it to the scan list.
Once the supplicant has associated to the AP, it'll notify about the
current BSS which we then look up in the scan list, and set
priv->current AP to that. If for some reason the given AP isn't yet
in our scan list (which often happens for adhoc/AP) then we'll just
live with the fake AP until we get the scan result, which should happen
very soon.
We don't need to do any fuzzy-matching to find the current AP because
it will either always be one the supplicant knows about, or a fake one
that the supplicant doesn't know about that will be replaced soon anyway.
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.
Refactor the implementation of nm_route_manager_ip4_route_sync()
and nm_route_manager_ip6_route_sync().
- merge the implementations for IPv4 and IPv6.
- pre-sort the routes and iterate them in a way that we don't
need to lookup a route in other lists. Do this by iterating
two sorted lists at a time in a merge-sort way.
The runtime complexity of sync is now O(n*ln(n)).
- previously, the algorithm would merge routes it found in platform
to priv->ipx_routes. That was wrong, because then we loose the
information which routes we wanted to configure internally and which
are present externally.
Instead, priv->ipx_routes now contains all the routes that were
explicitly configured via sync(). Hence, it knows what should be
configured (@ipx_routes) and can compare to what is configured
(@plat_routes).
https://bugzilla.gnome.org/show_bug.cgi?id=740064
Tests that use g_assert_expect_message() must initialize with
nmtst_init_assert_logging().
Otherwise, the caller can change the logging level via
NMTST_DEBUG=log-level=DEBUG,log-domains=DEFAULT
which breaks the assertions.
nmtst_init_assert_logging() allows the caller to turn of
checking of assertions via
NMTST_DEBUG=log-level=DEBUG,log-domains=DEFAULT,no-expect-message
Also, don't use g_message() in platform tests otherwise the test fail
because nmtst now sets g_log_set_always_fatal().
Before, when having a test with nmtst_init_assert_logging(),
the caller was expected to setup logging separately according
to the log level that the test asserts against.
Since 5e74891b58, the logging
level can be reset via NMTST_DEBUG also for tests that
assert logging. In this case, it would be useful, if the test
would not overwrite the logging level that is set externally
via NMTST_DEBUG.
Instead, let the test pass the logging configuration to
nmtst_init_assert_logging(), and nmtst will setup logging
-- either according to NMTST_DEBUG or as passed in.
This way, setting the log level works also for no-expect-message
tests:
NMTST_DEBUG="debug,no-expect-message,log-level=TRACE" $TEST
For glog messages to print any debug messages, we must set G_MESSAGES_DEBUG.
nmtst does this for us if we set @is_debug. But fix the condition to
also set G_MESSAGES_DEBUG if set set c_log_level to DEBUG or TRACE.
Add new capabilities CAP_FREQ_2GHZ and CAP_FREQ_5GHZ to indicate the
frequency bands supported by a Wifi device.
Add also CAP_FREQ_VALID, which is set when the values of the other 2
capabilities are available.
Original patch by Dan Williams <dcbw@redhat.com>
https://bugzilla.gnome.org/show_bug.cgi?id=723295
