BNetworkDevice: Remove GetNextNetwork.

As far as I can tell, it has no consumers whatsoever outside the tree.
(wpa_supplicant did not even use it.) So, remove it altogether.

If that turns out to be mistaken, we can reinstate it temporarily
as a private class function or ABI-only symbol.

BNetworkDevice: Restore old buffer size.

May help with #18020.

Network: Add a BNetworkDevice::GetNetworks() method and use it in the GUI.

The GetNextNetwork() method is really inefficient: it fetches all the
networks at once from the kernel every single time and then winds
up returning only one of them. In parts of the GUI that iterate over
all networks more than once per refresh (sometimes within a loop, even!)
this was often a noticeable lag on the GUI, especially with OpenBSD
drivers which have extra overhead to do struct translation in the
ioctl handler.

Now, we have a way to fetch all scan results at once and just iterate
over them as many times as we need, and this is what NetworkStatus
and Network preferences now do, saving lots of time and effort.

net/if: Drop ifmediareq and just use the regular ifreq for SIOCGIFMEDIA.

This was introduced into the main API in 2010 (d72ede75fb252c24c8a5fcc39395f9ae1c202322),
but was actually only fully used for the past month (c2a9a890f3ac7795602d11c0edaa20ac2db48202)
when SIOCGIFMEDIA was supported for all *BSD drivers and not just WiFi.
Most userland consumers of this structure did not use it correctly,
as was the case in #17770, and only worked because in the fallback case
the network stack just treated it as if it were an ifreq.

Nothing actually used the ifm_count/ifm_ulist (though tentative APIs
were exposed for it) as noted by previous commits; and the fact that
Haiku's IFM_* declarations are so spartan makes most of the returned
values unintelligible to userland without using FreeBSD compat headers.

If, in the future, we decide to implement ifmedia listing and selection
properly, that should likely be done with separate ioctls instead of
having multi-function ones like this.

This is technically an ABI break, but in practice it should not matter:
ifmediareq::ifm_current aligns with ifreq::ifr_media, so the things
that used this structure like our in-tree code did will continue to work.
Until this past May, the only other field that was usually set was
ifm_active, but in the absence of setting ifm_status all non-Haiku
consumers should ignore it completely.

The only consumer of this ioctl that I know of out of the tree,
wpa_supplicant, still works after these changes.

integrate AutoDeleter's into pointers

Change-Id: I6c3925a7aec4d0647c76c2a03aad7b08985d7166
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3490
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

BNetworkDevice: Fix memory leaks and address comments.

Thanks Axel and Jerome for the reviews!

Change-Id: I4f116c540cf59ba74b79d9d2f95ed40edc9c4174
Reviewed-on: https://review.haiku-os.org/557
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

BNetworkDevice: Implement Scan().

This depends on the previous commit to return the correct error code
from ioctl().

If there are no VAPs running (which is the case after a forced disconnect
from an access point), scans will fail. In that case, we call
IEEE80211_IOC_HAIKU_COMPAT_WLAN_UP, which will restart a VAP, and then
initiate the scan.

Change-Id: I732aefe67e386dbb0ed3d232ed9deda678132601
Reviewed-on: https://review.haiku-os.org/551
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

libnetapi: Do not use the freebsd11_network headers globally.

Since they were being Use'd at global scope, the FreeBSD versions
of a number of POSIX headers were being used instead of the POSIX ones,
which breaks the build on non-x86 as these headers presently do not work
elsewhere.

Instead, just include the base directory, and then include the compat
headers manually in the one place that actually requires them.
Also fix all the other files that expected errno.h and others to
be included implicitly, which they now are not.

This should fix the PowerPC and (part of the) ARM builds.

Network Kit: add BNetworkDevice::Control

* Allows to do an arbitrary ioctl on the network device

* For ifreq and ieee80211req requests

BNetworkDevice.GetHardwareAddress() was broken.

* Copy&paste error, apparently.

libnetapi: second pass of style cleanup

* remarks from Axel

* Remove the BNetworkDevice::AddPersistentNetwork() again and instead introduce
BNetworkRoster::{Count|GetNext|Add|Remove}PersistentNetwork() as it fits
better (thanks Philippe for the heads up).
* Implement the backend for these functions in the net_server and also move
conversion of the wireless_network based format into the settings based format
there.
* Implement removal of a network from the settings and make adding a new network
with the same name replace the old one instead of just adding multiple ones.
Might need to change this in the future depending on how we want to handle
multiple networks with the same name (i.e. distinguish based on BSSID or
similar).
* Fix apparent oversight that caused configured networks _not_ to be used in the
auto join attempt.
* Remove auto joining open networks. I've been bitten by that more than once now
because we happen to have an open network in the neighbourhood that I now
accidentally used to transfer quite a bit of (unencrypted) stuff before
noticing... In the future, one will instead have to explicitly join an open
network once and store that config. Note that the driver will actually still
auto-associate with open networks due to how things are set up currently.
Note also that the auto join will fire join requests whenever there's a
disassociation event, so you might see spurious join dialogs when the
wpa_supplicant actually just re-establishes the connection.
* Make join requests async again. Instead of waiting for a synchronous reply of
the wpa_supplicant we instead return success when the request has been sent.
While the API call might still be made synchronous again in the future, the
net_server should really not block on an external application. In the case of
the wpa_supplicant we would otherwise deadlock when using the new
*PersistentNetwork() API after a successful join, and in other cases we might
just unacceptably delay other calls.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42816 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add a way to add persistent (configured) wireless_networks that will eventually
be stored by the backend in the net_server. I put it in BNetworkDevice because
that is where network enumeration is done as well, but I'm not sure that it fits
there particularly well.
Since BNetworkDevice::GetNetwork() directly interfaces with the driver and gets
the networks from scan results, such persistent networks don't yet show up in
those enumerations.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42807 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented operator<() for AF_LINK addresses as well; now NetworkStatus
actually marks the currently associated network.
* Removed unused code from NetworkDevice.cpp - doesn't look like we're going
to use it anymore.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39793 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Parse the additional information elements the station sends in order to
retrieve the WLAN cipher/key configuration. Might not work perfectly yet; so
far I've only seen WPA2, and WPA networks.
* Have wlan_test show this extra info.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39792 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Pretty much completed BNetworkDevice. The only parts missing are GetMediaAt(),
and parsing the extra station data to retrieve the authentication details.
Comments welcome.
* NetworkStatus should now mark the currently associated network (if any).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39774 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Untested work-in-progress. Actually cannot work because of missing
functionality in BNetworkAddress.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39687 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added Index() method, was not even declared yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39593 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented IsEthernet(), and IsWireless() temporarily, but this will do
for some drivers at least.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39393 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Work in progress network API changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39147 a95241bf-73f2-0310-859d-f6bbb57e9c96

BNetworkDevice.GetHardwareAddress() was broken.

* Copy&paste error, apparently.

libnetapi: second pass of style cleanup

* remarks from Axel

* Remove the BNetworkDevice::AddPersistentNetwork() again and instead introduce
BNetworkRoster::{Count|GetNext|Add|Remove}PersistentNetwork() as it fits
better (thanks Philippe for the heads up).
* Implement the backend for these functions in the net_server and also move
conversion of the wireless_network based format into the settings based format
there.
* Implement removal of a network from the settings and make adding a new network
with the same name replace the old one instead of just adding multiple ones.
Might need to change this in the future depending on how we want to handle
multiple networks with the same name (i.e. distinguish based on BSSID or
similar).
* Fix apparent oversight that caused configured networks _not_ to be used in the
auto join attempt.
* Remove auto joining open networks. I've been bitten by that more than once now
because we happen to have an open network in the neighbourhood that I now
accidentally used to transfer quite a bit of (unencrypted) stuff before
noticing... In the future, one will instead have to explicitly join an open
network once and store that config. Note that the driver will actually still
auto-associate with open networks due to how things are set up currently.
Note also that the auto join will fire join requests whenever there's a
disassociation event, so you might see spurious join dialogs when the
wpa_supplicant actually just re-establishes the connection.
* Make join requests async again. Instead of waiting for a synchronous reply of
the wpa_supplicant we instead return success when the request has been sent.
While the API call might still be made synchronous again in the future, the
net_server should really not block on an external application. In the case of
the wpa_supplicant we would otherwise deadlock when using the new
*PersistentNetwork() API after a successful join, and in other cases we might
just unacceptably delay other calls.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42816 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add a way to add persistent (configured) wireless_networks that will eventually
be stored by the backend in the net_server. I put it in BNetworkDevice because
that is where network enumeration is done as well, but I'm not sure that it fits
there particularly well.
Since BNetworkDevice::GetNetwork() directly interfaces with the driver and gets
the networks from scan results, such persistent networks don't yet show up in
those enumerations.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42807 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented operator<() for AF_LINK addresses as well; now NetworkStatus
actually marks the currently associated network.
* Removed unused code from NetworkDevice.cpp - doesn't look like we're going
to use it anymore.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39793 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Parse the additional information elements the station sends in order to
retrieve the WLAN cipher/key configuration. Might not work perfectly yet; so
far I've only seen WPA2, and WPA networks.
* Have wlan_test show this extra info.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39792 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Pretty much completed BNetworkDevice. The only parts missing are GetMediaAt(),
and parsing the extra station data to retrieve the authentication details.
Comments welcome.
* NetworkStatus should now mark the currently associated network (if any).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39774 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Untested work-in-progress. Actually cannot work because of missing
functionality in BNetworkAddress.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39687 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Added Index() method, was not even declared yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39593 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Implemented IsEthernet(), and IsWireless() temporarily, but this will do
for some drivers at least.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39393 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Work in progress network API changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39147 a95241bf-73f2-0310-859d-f6bbb57e9c96