Commit graph

107 commits

Author SHA1 Message Date
Thomas Haller
8bace23beb all: cleanup includes and let "nm-default.h" include "config.h"
- All internal source files (except "examples", which are not internal)
  should include "config.h" first. As also all internal source
  files should include "nm-default.h", let "config.h" be included
  by "nm-default.h" and include "nm-default.h" as first in every
  source file.
  We already wanted to include "nm-default.h" before other headers
  because it might contains some fixes (like "nm-glib.h" compatibility)
  that is required first.

- After including "nm-default.h", we optinally allow for including the
  corresponding header file for the source file at hand. The idea
  is to ensure that each header file is self contained.

- Don't include "config.h" or "nm-default.h" in any header file
  (except "nm-sd-adapt.h"). Public headers anyway must not include
  these headers, and internal headers are never included after
  "nm-default.h", as of the first previous point.

- Include all internal headers with quotes instead of angle brackets.
  In practice it doesn't matter, because in our public headers we must
  include other headers with angle brackets. As we use our public
  headers also to compile our interal source files, effectively the
  result must be the same. Still do it for consistency.

- Except for <config.h> itself. Include it with angle brackets as suggested by
  https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
2016-02-19 17:53:25 +01:00
Thomas Haller
2c2d9d2e4c build: cleanup default includes
- "gsystem-local-alloc.h" and <gio/gio.h> are already included via
  "nm-default.h". No need to include them separately.

- include "nm-macros-internal.h" via "nm-default.h" and drop all
  explict includes.

- in the modified files, ensure that we always include "config.h"
  and "nm-default.h" first. As second, include the header file
  for the current source file (if applicable). Then follow external
  includes and finally internal nm includes.

- include nm headers inside source code files with quotes

- internal header files don't need to include default headers.
  They can savely assume that "nm-default.h" is already included
  and with it glib, nm-glib.h, nm-macros-internal.h, etc.
2016-02-12 15:36:01 +01:00
Dan Williams
1cf4727766 wwan: retry connect on some errors and save them for log messages
First, cb751012a2 mistakenly converted the
act_stage_context_step() in connect_ready() to connect_context_clear()
instead of connect_context_step().  This would cause the IP Type retry
logic to fail and no further types to be tried.  It also throws
away the ctx->first_error and causes all errors that MM returns on the
connect attempt to be dropped on the floor.

Second, not all errors should cause an advance to the next IP Type,
since some errors aren't related to it.  Specifically, MM_CORE_ERROR_RETRY
when using Simple.Connect() means that a timeout was reached
in the internal connect logic, not a modem or network error.  In
that case, try the connect again with the same IP Type before advancing
to the next type.

Fixes: cb751012a2

Tested-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Tore Anderson <tore@fud.no>
2016-01-28 12:25:47 -06:00
Thomas Haller
2550850f54 device: pass NMPlatformLink instance as const pointer 2016-01-11 14:05:49 +01:00
Beniamino Galvani
fbd3286955 core,libnm: use nm_clear_g_source() where possible
Replacement was done with commands:

spatch --sp-file nm_clear_g_source.cocci --in-place --smpl-spacing --dir src
spatch --sp-file nm_clear_g_source.cocci --in-place --smpl-spacing --dir libnm

where nm_clear_g_source.cocci contains:

@@
expression e;
@@
- if (e) {
-    g_source_remove (e);
-    e = 0;
- }
+ nm_clear_g_source (&e);
2016-01-06 21:25:55 +01:00
Thomas Haller
db80ec05ab build: rename directory "include" to "shared"
Up to now, the "include" directory contained (only) header files that were
used project-wide by libs, core, clients, et al.

Since the directory now also contains a non-header file, the "include"
name is misleading. Instead of adding yet another directory that is
project-wide, with non-header-only content, rename the "include"
directory to "shared".
2015-12-24 11:42:37 +01:00
Thomas Haller
3755209039 core: use define for NMPPPManager's "state-changed" signal name 2015-12-07 19:54:11 +01:00
Thomas Haller
3b6602b656 device: expose nm_device_set_autoconnect() function 2015-12-04 15:46:04 +01:00
Dan Williams
cb751012a2 wwan: rework connection flow to send PIN earlier and fix autoconnect
Modems often don't expose all the required properties until they have
been unlocked, and that includes the IP types supported by the modem.

With an autoconnect WWAN connection where the SIM requires a PIN, there
were two problems:

1) the PIN is a secret and we don't have it until it's explicitly requested
during the activation process, so we cannot gate GSM connection availability
on whether a PIN is present since this happens long before we request secrets

2) when the modem is locked it may not report the supported IP types, which
caused an auto-activation to fail early becuase IP compatibility is checked
before the PIN is sent to the modem

Rework connection activation flow into a series of concrete steps, where the
PIN is sent to the modem if required, and only after the modem is actually
unlocked does the connection proceed.  This does mean that any connection
marked 'autoconnect' can theoretically enable a PIN-locked modem even if
the connection has no PIN defined, but there's no good way around that.
NetworkManager would activate the connection
2015-11-18 15:50:53 +01:00
Dan Williams
4b412218e6 libnm/wwan: add GSM setting device-id, sim-id, and sim-operator-id properties
These properties limit whether the connection applies to a certain WWAN modem
based on the modem's device ID or SIM ID (as reported by the WWAN management
service), or through the MCC/MNC ID of the operator that issued the SIM card.
2015-11-18 15:50:52 +01:00
Dan Williams
f9ee20a7b2 core: explicitly unexport objects when we're done with them
Previously most objects were implicitly unexported when they were
destroyed, but since refcounts may make the object live longer than
intended, we should explicitly unexport them when they should no
longer be present on the bus.

This means we can assume that objects will always be un-exported
already when they are destroyed, *except* when quitting where most
objects will live until exit because NM leaves interfaces up and
running on quit.
2015-11-10 18:12:12 +01:00
Thomas Haller
6c8aa669a4 platform: properly handle IPv4 peer-addresses
The peer-address (IFA_ADDRESS) can also be all-zero (0.0.0.0).
That is distinct from an usual address without explicit peer-address,
which implicitly has the same peer and local address.

Previously, we treated an all-zero peer_address as having peer and
local address equal. This is especially grave, because the peer is part
of the primary key for an IPv4 address. So we not only get a property of
the address wrong, but we wrongly consider two different addresses as
one and the same.

To properly handle these addresses, we always must explicitly set the peer.
2015-11-02 13:57:01 +01:00
Thomas Haller
7bf10a75db build: extract version macros from "nm-version.h" to new header file "nm-version-macros.h"
For libnm library, "nm-dbus-interface.h" contains defines like the D-Bus
paths of NetworkManager. It is desirable to have this header usable without
having a dependency on "glib.h", for example for a QT application. For that,
commit c0852964a8 removed that dependancy.

For libnm-glib library, the analog to "nm-dbus-interface.h" is
"NetworkManager.h", and the same applies there. Commit
159e827a72 removed that include.
However, that broke build on PackageKit [1] which expected to get the
version macros by including "NetworkManager.h". So at least for libnm-glib,
we need to preserve old behavior so that a user including
"NetworkManager.h" gets the version macros, but not "glib.h".

Extract the version macros to a new header file "nm-version-macros.h".
This header doesn't include "glib.h" and can be included from
"NetworkManager.h". This gives as previous behavior and a glib-free
include.

For libnm we still don't include "nm-version-macros.h" to "nm-dbus-interface.h".
Very few users will actually need the version macros, but not using
libnm.
Users that use libnm, should just include (libnm's) "NetworkManager.h" to
get all headers.
As a special case, a user who doesn't want to use glib/libnm, but still
needs both "nm-dbus-interface.h" and "nm-version-macros.h", can include
them both separately.

[1] https://github.com/hughsie/PackageKit/issues/85

Fixes: 4545a7fe96
2015-09-30 23:10:29 +02:00
Jiří Klimeš
eecb4c46cc modem-broadband: update modem's supported-ip-families (rh #1263959)
If SIM in a modem is locked, ModemManager can't initialize SupportedIpFamilies
and NetworkManager will set the property to 0. ModemManager then updates the
property after the modem is unlocked, but NetworkManager did not watch changes
to the property. And that resulted in a connection failure:
(ttyUSB1): Failed to connect 'O2 Internet': Connection requested IPv4 but IPv4 is unsuported by the modem.
(ttyUSB1): device state change: prepare -> failed (reason 'modem-init-failed') [40 120 28]

https://bugzilla.redhat.com/show_bug.cgi?id=1263959
2015-09-25 10:18:38 +02:00
Lubomir Rintel
06da353242 core: separate active and applied connection
Clone the connection upon activation. This makes it safe for the user
to modify the original connection while it is activated.

This involves several changes:

- NMActiveConnection gets @settings_connection and @applied_connection.
  To support add-and-activate, we constructing a NMActiveConnection with
  no connection set. Previously, we would set the "connection" field to
  a temporary NMConnection. Now NMManager piggybacks this temporary
  connection as object-data (TAG_ACTIVE_CONNETION_ADD_AND_ACTIVATE).

- get rid of the functions nm_active_connection_get_connection_type()
  and nm_active_connection_get_connection_uuid(). From their names
  it is unclear whether this returns the settings or applied connection.
  The (few) callers should figure that out themselves.

- rename nm_active_connection_get_id() to
  nm_active_connection_get_settings_connection_id(). This function
  is only used internally for logging.

- dispatcher calls now get two connections as well. The
  applied-connection is used for the connection data, while
  the settings-connection is used for the connection path.

- needs special handling for properties that apply immediately
  when changed (nm_device_reapply_settings_immediately()).

Co-Authored-By: Thomas Haller <thaller@redhat.com>

https://bugzilla.gnome.org/show_bug.cgi?id=724041
2015-09-18 17:32:11 +02:00
Thomas Haller
1b5664fed4 agent-manager: always invoke complete function for asynchronous nm_agent_manager_get_secrets()
Refactor agent-manager to always invoke the complete function for
nm_agent_manager_get_secrets().

In general, the complete function is always invoked asnychronously
when starting the operation. On the other hand, when cancelling the
operation or disposing the manager with pending operations, we now
(always) synchronously invoke the callback.

This makes it simpler for the user to reliably cancel the request
and perform potential cleanup.

This behavior bubbles up through NMSettingsConnection and NMActRequest,
and other callers that make directly or indicrectly make use of
nm_agent_manager_get_secrets().
2015-09-18 14:31:31 +02:00
Thomas Haller
21fd5fa0ab settings: refactor call_id type of async functions for NMAgentManager, NMSettingsConnection and NMActRequest
Instead of having the call_id of type guint32, make it an (opaque)
pointer type.

This has the advantage of strong typing and avoids the possiblity
of reusing an invalid integer (or overflow of the call-id counter).

OTOH, it has the disadvantage, that after a call_id is disposed,
it might be reused for future invocations (because malloc might
reuse the memory).

In fact, it is always an error to use a call_id that is already
completed. This commit also adds assertions to the cancel() calls
that the provided call_id is a pending call. Hence, such a bug
will be uncovered by assertions (that only might not tigger in
certain unlikely cases where a call-id got reused).

Note that for NMAgentManager, save_secrets() and delete_secrets()
both returned a call_id. But they didn't also provide a callback when
the operation completes. So the user trying to cancel such a call,
cannot know whether the operation is still in process and he cannot
avoid triggering an assertion.
Fix that by not returning a call-id for these operations. No caller
cared about it anyway.

For NMSettingsConnection, also track the internally scheduled requests
for so that we can cancel them on dispose.
2015-09-18 14:31:31 +02:00
Dan Winship
8e9f782082 core: fix interface type names
A GObject interface, like a class, has two different C types
associated with it; the type of the "class" struct (eg, GObjectClass,
GFileIface), and the type of instances of that class/interface (eg,
GObject, GFile).

NetworkManager was doing this wrong though, and using the same C type
to point to both the interface's class struct and to instances of the
interface. This ends up not actually breaking anything, since for
interface types, the instance type is a non-dereferenceable dummy type
anyway. But it's wrong, since if, eg, NMDeviceFactory is a struct type
containing members "start", "device_added", etc, then you should not
be using an NMDeviceFactory* to point to an object that does not
contain those members.

Fix this by splitting NMDeviceFactory into NMDeviceFactoryInterface
and NMDeviceFactory; by splitting NMConnectionProvider into
NMConnectionProviderInterface and NMConnectionProvider; and by
splitting NMSettingsPlugin into NMSettingsPluginInterface and
NMSettingsPlugin; and then use the right types in the right places.

As a bonus, this also lets us now use G_DEFINE_INTERFACE.
2015-09-10 13:43:47 -04:00
Dan Williams
4a627929c0 wwan: add missing include for DBUS_INTERFACE_PEER 2015-08-18 17:01:44 -05:00
Dan Winship
c050fb7cd2 devices, active-connection: port to gdbus 2015-08-10 09:41:26 -04:00
Dan Winship
22e1a97e12 all: drop includes to <glib/gi18n.h> for "nm-default.h"
The localization headers are now included via "nm-default.h".

Also fixes several places, where we wrongly included <glib/gi18n-lib.h>
instead of <glib/gi18n.h>. For example under "clients/" directory.
2015-08-05 15:35:51 +02:00
Thomas Haller
19c3ea948a all: make use of new header file "nm-default.h" 2015-08-05 15:32:40 +02:00
Thomas Haller
9ac57182ca include: add convenience header "nm-default.h"
This internal header file should be included by our internal source
code files and header files. It includes in one place other headers
that constitute to a minimal set of required headers. Most notably
this is <glib.h> and our "nm-glib.h" header.

Note that public header files and example source code cannot include
this file as "nm-default.h" is internal only.
2015-08-05 15:32:39 +02:00
Dan Williams
e8139f56c2 core: split device creation and device setup (bgo #737458)
Future patches will create devices long before they are backed by
kernel resources, so we need to split NMDevice object creation from
actual setup based on the backing resources.

This patch combines the NMDeviceFactory's new_link() and
create_virtual_device_for_connection() class methods into a single
create_device() method that simply creates an unrealized NMDevice
object; this method is not expected to fail unless the device is
supposed to be ignored.  This also means that the NMDevice
'platform-device' property is removed, because a platform link
object may not be available at NMDevice object creation time.

After the device is created, it is then "realized" at some later
time from a platform link (for existing/hardware devices via the
realize() method) or from an NMConnection (for newly created software
devices via the create_and_realize() NMDeviceClass methods).

https://bugzilla.gnome.org/show_bug.cgi?id=737458
2015-07-31 14:06:09 -05:00
Beniamino Galvani
5f7f38a586 wwan: trivial: fix typos in error strings
Reported-by: m.manico@gmx.at
2015-07-29 15:34:43 +02:00
Dan Winship
c1dd3b6eed core: move D-Bus export/unexport into NMExportedObject
Move D-Bus export/unexport handling into NMExportedObject and remove
type-specific export/get_path methods (export paths are now specified
at the class level, and NMExportedObject handles the counters for all
exported types automatically).

Since all exportable objects now use the same get_path() method, we
can also add some helper methods to simplify get_property()
implementations for object-path and object-path-array properties.
2015-07-24 13:25:47 -04:00
Dan Winship
6fcc1deee0 core: add an NMExportedObject base class
Add NMExportedObject, make it the base class of all D-Bus-exported
types, and move the nm-properties-changed-signal logic into it. (Also,
make NMSettings use the same properties-changed code as everything
else, which it was not previously doing, presumably for historical
reasons).

(This is mostly just shuffling code around at this point, but
NMExportedObject will be more important in the gdbus port, since
gdbus-codegen doesn't do a very good job of supporting objects that
export multiple interfaces [as each NMDevice subclass does, for
example], so we will need more glue/helper code in NMExportedObject
then.)
2015-07-24 13:25:47 -04:00
Dan Winship
3452ee2a0e all: rename nm-glib-compat.h to nm-glib.h, use everywhere
Rather than randomly including one or more of <glib.h>,
<glib-object.h>, and <gio/gio.h> everywhere (and forgetting to include
"nm-glib-compat.h" most of the time), rename nm-glib-compat.h to
nm-glib.h, include <gio/gio.h> from there, and then change all .c
files in NM to include "nm-glib.h" rather than including the glib
headers directly.

(Public headers files still have to include the real glib headers,
since nm-glib.h isn't installed...)

Also, remove glib includes from header files that are already
including a base object header file (which must itself already include
the glib headers).
2015-07-24 13:25:47 -04:00
Dan Winship
dd0e198955 include: add nm-dbus-compat.h
Add a file containing the defines like DBUS_INTERFACE_DBUS from
dbus-shared.h, and use it from the gdbus-using files.

Also, convert a bunch of other places that were previously hardcoding
the string values to use the defines instead, and fix the ifcfg-rh
plugin to properly namespace its own D-Bus-related defines.
2015-07-24 13:25:47 -04:00
Thomas Haller
e9e9d44468 device: add nm_device_get_type_description() function
Add a function to get a concise representation of the
device type.

libnm already has nm_device_get_type_description() for that
and it is shown by

  nmcli -f GENERAL.TYPE device show

Reimplement that function for nm-core. Just take care that the
two implementations don't diverge.
2015-06-05 12:38:29 +02:00
Dan Williams
8fa0f4690f core: let plugins indicate links which should be ignored
Instead of hacky stuff in the Manager, let plugins themselves indicate
which links should be ignored (because they are really child links that
are controlled by a different device that the plugin handles).
2015-05-06 16:14:25 -05:00
Dan Williams
71bde20c30 core: let device plugins advertise supported link and setting types
Instead of looping over all plugins and asking each plugin whether it
can handle a link or a connection, have them advertise the link and
connection types they support, and use that when creating new devices.
2015-05-06 16:14:24 -05:00
Dan Williams
3006df940c core: add generic NMDevice function to recheck availability
And use it everywhere.
2015-05-01 14:18:29 -05:00
Thomas Haller
c6529a9d74 platform: add self argument to platform functions
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".
2015-04-21 17:51:34 +02:00
Thomas Haller
2117bef864 device: use NMDeviceCapabilities enum for device capabilities 2015-04-18 21:41:40 +02:00
Thomas Haller
5599a82d0d wwan: refactor nm_modem_ip_type_to_string() and fix return type
The statement
    g_return_val_if_reached (NM_MODEM_IP_TYPE_UNKNOWN);
was wrong, because the return type is 'const char *'.

But just refactor nm_modem_ip_type_to_string() to get rid of
the static table and make it a switch statement.

Fixes: 85d9132464
2015-03-03 11:07:01 +01:00
Dan Williams
e93309e81d wwan: don't warn on disconnect if ModemManager isn't running
If ModemManager quit or was terminated, and that caused the disconnect,
don't bother printing out a warning if MM couldn't be started.
2015-03-02 13:56:40 -06:00
Lubomir Rintel
f981407a02 core: pass ifindex as parameter to nm_ip6_config_new() 2015-02-27 16:50:09 +01:00
Dan Williams
84f54f0a5f core: pass ifindex as parameter to nm_ip4_config_new() 2015-02-27 16:50:09 +01:00
Lubomir Rintel
52711b5d89 ip6-config: keep track of ifindex
No functional change, a cosmetic thing for now.

We want it set before any routes are added and ensure routes have a valid
ifindex before we pass it to the platform.

In a future NMRouteManager will need to look up the route for a device in
its cache thus we'll need to make sure routes passed to the it have an
appropriate ifindex set.
2015-02-27 16:48:27 +01:00
Lubomir Rintel
747292a4c3 ip4-config: keep track of ifindex
No functional change, a cosmetic thing for now.

We want it set before any routes are added and ensure routes have a valid
ifindex before we pass it to the platform.

In a future NMRouteManager will need to look up the route for a device in
its cache thus we'll need to make sure routes passed to the it have an
appropriate ifindex set.
2015-02-27 16:48:27 +01:00
Lubomir Rintel
874e4a7595 core: split route management code out from platform
Create a NMRouteManager singleton.

Refactor, no functional changes apart from change of log domain from
LOGD_PLATFORM to LOGD_CORE.

Subsequent commit will keep track of the conflicting routes, avoid overwriting
older ones with newer ones and apply the new ones when the old ones go away.
2015-02-27 16:48:27 +01:00
Aleksander Morgado
a84744324f wwan: indentation & alignment fixes 2015-02-24 16:04:45 -06:00
Aleksander Morgado
85d9132464 wwan: new retry logic when ipv4=auto and ipv6=auto
When ipv4=auto and ipv6=auto, we'll first try with the IPv4v6 PDP type, and if
that fails (e.g. if either the modem or the operator doesn't support it), we'll
fallback to trying with IPv4 or IPv6 PDP types (only if may-fail configuration
allows it).

Patch based on a previous implementation by Dan Williams <dcbw@redhat.com>

https://bugzilla.gnome.org/show_bug.cgi?id=733696
2015-02-24 16:04:37 -06:00
Thomas Haller
e524be2c34 device: remove debug logging from is_available()
Having logging statements in a simple getter (or is_*()) means
you cannot call these functions without cluttering the log.

Another approach would be to add an @out_reason argument, and
callers who actually care log the reason. For now, just get rid
of the messages.
2015-02-24 11:49:04 +01:00
Thomas Haller
52dbb2398a device: add flags to nm_device_is_available() 2015-02-24 11:49:04 +01:00
Thomas Haller
e96af59444 device: add flags argument to check_connection_available() 2015-02-24 11:49:03 +01:00
Thomas Haller
5a04273715 device: merge check_connection_available_wifi_hidden() into check_connection_available()
Only refactoring, no behavioral change.
2015-02-24 11:49:03 +01:00
Aleksander Morgado
5df024f57a wwan: don't assume DNS info is always available
Fixes segfault with e.g. Ericsson modems that reply just with IP+gateway,
without DNS info.

 [mm-port-serial-at.c:440] debug_log(): (ttyACM8): --> 'AT*E2IPCFG?<CR>'
 [mm-port-serial-at.c:440] debug_log(): (ttyACM8): <-- '<CR><LF>*E2IPCFG: (1,"10.191.64.12")(2,"10.191.64.10")<CR><LF>'
 [mm-port-serial-at.c:440] debug_log(): (ttyACM8): <-- '<CR><LF>OK<CR><LF>'
 [mm-port-serial.c:1296] mm_port_serial_close(): (ttyACM8) device open count is 1 (close)
 [mm-port.c:95] mm_port_set_connected(): (wwan0): port now connected
 [mm-base-bearer.c:488] connect_ready(): Connected bearer '/org/freedesktop/ModemManager1/Bearer/0'
 [mm-iface-modem.c:1392] __iface_modem_update_state_internal(): Modem /org/freedesktop/ModemManager1/Modem/0: state changed (connecting -> connected)

 <info> Activation (ttyACM8) Stage 3 of 5 (IP Configure Start) started...
 <info> (ttyACM8): device state change: config -> ip-config (reason 'none') [50 70 0]
 <info> Activation (ttyACM8) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
 <info> Activation (ttyACM8) Stage 3 of 5 (IP Configure Start) complete.
 <info> (ttyACM8): IPv4 static configuration:
 <info>   address 10.191.64.12/28
 <info>   gateway 10.191.64.10
Errore di segmentazione

http://lists.freedesktop.org/archives/modemmanager-devel/2015-February/001758.html
2015-02-17 12:06:09 -06:00
Dan Williams
f3b16fffbd wwan: recheck available connections when modem becomes unlocked (bgo #740966)
NMDevice rechecks available connections when the device moves to the
DISCONNECTED state, but connections are not available if the modem is
PIN locked at that time.  Available connections were never re-checked
when the modem was then unlocked while in the DISCONNECTED state.
2015-02-05 11:09:22 +01:00