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NetworkManager/src/devices/nm-device-bridge.c
Thomas Haller 4154d9618c bluetooth: refactor BlueZ handling and let NMBluezManager cache ObjectManager data 
This is a complete refactoring of the bluetooth code.

Now that BlueZ 4 support was dropped, the separation of NMBluezManager
and NMBluez5Manager makes no sense. They should be merged.

At that point, notice that BlueZ 5's D-Bus API is fully centered around
D-Bus's ObjectManager interface. Using that interface, we basically only
call GetManagedObjects() once and register to InterfacesAdded,
InterfacesRemoved and PropertiesChanged signals. There is no need to
fetch individual properties ever.

Note how NMBluezDevice used to query the D-Bus properties itself by
creating a GDBusProxy. This is redundant, because when using the ObjectManager
interfaces, we have all information already.

Instead, let NMBluezManager basically become the client-side cache of
all of BlueZ's ObjectManager interface. NMBluezDevice was mostly concerned
about caching the D-Bus interface's state, tracking suitable profiles
(pan_connection), and moderate between bluez and NMDeviceBt.
These tasks don't get simpler by moving them to a seprate file. Let them
also be handled by NMBluezManager.

I mean, just look how it was previously: NMBluez5Manager registers to
ObjectManager interface and sees a device appearing. It creates a
NMBluezDevice object and registers to its "initialized" and
"notify:usable" signal. In the meantime, NMBluezDevice fetches the
relevant information from D-Bus (although it was already present in the
data provided by the ObjectManager) and eventually emits these usable
and initialized signals.
Then, NMBlue5Manager emits a "bdaddr-added" signal, for which NMBluezManager
creates the NMDeviceBt instance. NMBluezManager, NMBluez5Manager and
NMBluezDevice are strongly cooperating to the point that it is simpler
to merge them.

This is not mere refactoring. This patch aims to make everything
asynchronously and always cancellable. Also, it aims to fix races
and inconsistencies of the state.

- Registering to a NAP server now waits for the response and delays
  activation of the NMDeviceBridge accordingly.

- For NAP connections we now watch the bnep0 interface in platform, and tear
  down the device when it goes away. Bluez doesn't send us a notification
  on D-Bus in that case.

- Rework establishing a DUN connection. It no longer uses blocking
  connect() and does not block until rfcomm device appears. It's
  all async now. It also watches the rfcomm file descriptor for
  POLLERR/POLLHUP to notice disconnect.

- drop nm_device_factory_emit_component_added() and instead let
  NMDeviceBt directly register to the WWan factory's "added" signal.
2019-09-23 12:47:37 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/* NetworkManager -- Network link manager
*
* Copyright 2011 - 2015 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-device-bridge.h"
#include <stdlib.h>
#include "NetworkManagerUtils.h"
#include "nm-device-private.h"
#include "platform/nm-platform.h"
#include "nm-device-factory.h"
#include "nm-core-internal.h"
#include "nm-device-logging.h"
_LOG_DECLARE_SELF(NMDeviceBridge);
/*****************************************************************************/
struct _NMDeviceBridge {
NMDevice parent;
GCancellable *bt_cancellable;
bool vlan_configured:1;
bool bt_registered:1;
};
struct _NMDeviceBridgeClass {
NMDeviceClass parent;
};
G_DEFINE_TYPE (NMDeviceBridge, nm_device_bridge, NM_TYPE_DEVICE)
/*****************************************************************************/
const NMBtVTableNetworkServer *nm_bt_vtable_network_server = NULL;
/*****************************************************************************/
static NMDeviceCapabilities
get_generic_capabilities (NMDevice *dev)
{
return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE;
}
static gboolean
check_connection_available (NMDevice *device,
NMConnection *connection,
NMDeviceCheckConAvailableFlags flags,
const char *specific_object,
GError **error)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
NMSettingBluetooth *s_bt;
if (!NM_DEVICE_CLASS (nm_device_bridge_parent_class)->check_connection_available (device, connection, flags, specific_object, error))
return FALSE;
s_bt = _nm_connection_get_setting_bluetooth_for_nap (connection);
if (s_bt) {
const char *bdaddr;
if (!nm_bt_vtable_network_server) {
nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
"bluetooth plugin not available to activate NAP profile");
return FALSE;
}
bdaddr = nm_setting_bluetooth_get_bdaddr (s_bt);
if (!nm_bt_vtable_network_server->is_available (nm_bt_vtable_network_server,
bdaddr,
( self->bt_cancellable
|| self->bt_registered)
? device
: NULL)) {
if (bdaddr)
nm_utils_error_set (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
"no suitable NAP device \"%s\" available", bdaddr);
else
nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
"no suitable NAP device available");
return FALSE;
}
}
return TRUE;
}
static gboolean
check_connection_compatible (NMDevice *device, NMConnection *connection, GError **error)
{
NMSettingBridge *s_bridge;
const char *mac_address;
if (!NM_DEVICE_CLASS (nm_device_bridge_parent_class)->check_connection_compatible (device, connection, error))
return FALSE;
if ( nm_connection_is_type (connection, NM_SETTING_BLUETOOTH_SETTING_NAME)
&& _nm_connection_get_setting_bluetooth_for_nap (connection)) {
s_bridge = nm_connection_get_setting_bridge (connection);
if (!s_bridge) {
nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
"missing bridge setting for bluetooth NAP profile");
return FALSE;
}
/* a bluetooth NAP connection is handled by the bridge.
*
* Proceed... */
} else {
s_bridge = _nm_connection_check_main_setting (connection, NM_SETTING_BRIDGE_SETTING_NAME, error);
if (!s_bridge)
return FALSE;
}
mac_address = nm_setting_bridge_get_mac_address (s_bridge);
if (mac_address && nm_device_is_real (device)) {
const char *hw_addr;
hw_addr = nm_device_get_hw_address (device);
if (!hw_addr || !nm_utils_hwaddr_matches (hw_addr, -1, mac_address, -1)) {
nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
"mac address mismatches");
return FALSE;
}
}
return TRUE;
}
static gboolean
complete_connection (NMDevice *device,
NMConnection *connection,
const char *specific_object,
NMConnection *const*existing_connections,
GError **error)
{
NMSettingBridge *s_bridge;
nm_utils_complete_generic (nm_device_get_platform (device),
connection,
NM_SETTING_BRIDGE_SETTING_NAME,
existing_connections,
NULL,
_("Bridge connection"),
"bridge",
NULL,
TRUE);
s_bridge = nm_connection_get_setting_bridge (connection);
if (!s_bridge) {
s_bridge = (NMSettingBridge *) nm_setting_bridge_new ();
nm_connection_add_setting (connection, NM_SETTING (s_bridge));
}
return TRUE;
}
/*****************************************************************************/
typedef struct {
const char *name;
const char *sysname;
uint nm_min;
uint nm_max;
uint nm_default;
bool default_if_zero;
bool user_hz_compensate;
bool only_with_stp;
} Option;
static const Option master_options[] = {
{ NM_SETTING_BRIDGE_STP, "stp_state", /* this must stay as the first item */
0, 1, 1,
FALSE, FALSE, FALSE },
{ NM_SETTING_BRIDGE_PRIORITY, "priority",
0, G_MAXUINT16, 0x8000,
TRUE, FALSE, TRUE },
{ NM_SETTING_BRIDGE_FORWARD_DELAY, "forward_delay",
0, NM_BR_MAX_FORWARD_DELAY, 15,
TRUE, TRUE, TRUE},
{ NM_SETTING_BRIDGE_HELLO_TIME, "hello_time",
0, NM_BR_MAX_HELLO_TIME, 2,
TRUE, TRUE, TRUE },
{ NM_SETTING_BRIDGE_MAX_AGE, "max_age",
0, NM_BR_MAX_MAX_AGE, 20,
TRUE, TRUE, TRUE },
{ NM_SETTING_BRIDGE_AGEING_TIME, "ageing_time",
NM_BR_MIN_AGEING_TIME, NM_BR_MAX_AGEING_TIME, 300,
TRUE, TRUE, FALSE },
{ NM_SETTING_BRIDGE_GROUP_FORWARD_MASK, "group_fwd_mask",
0, 0xFFFF, 0,
TRUE, FALSE, FALSE },
{ NM_SETTING_BRIDGE_MULTICAST_SNOOPING, "multicast_snooping",
0, 1, 1,
FALSE, FALSE, FALSE },
{ NULL, NULL }
};
static const Option slave_options[] = {
{ NM_SETTING_BRIDGE_PORT_PRIORITY, "priority",
0, NM_BR_PORT_MAX_PRIORITY, NM_BR_PORT_DEF_PRIORITY,
TRUE, FALSE },
{ NM_SETTING_BRIDGE_PORT_PATH_COST, "path_cost",
0, NM_BR_PORT_MAX_PATH_COST, 100,
TRUE, FALSE },
{ NM_SETTING_BRIDGE_PORT_HAIRPIN_MODE, "hairpin_mode",
0, 1, 0,
FALSE, FALSE },
{ NULL, NULL }
};
static void
commit_option (NMDevice *device, NMSetting *setting, const Option *option, gboolean slave)
{
int ifindex = nm_device_get_ifindex (device);
GParamSpec *pspec;
GValue val = G_VALUE_INIT;
guint32 uval = 0;
char value[100];
g_assert (setting);
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (setting), option->name);
g_assert (pspec);
/* Get the property's value */
g_value_init (&val, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_object_get_property ((GObject *) setting, option->name, &val);
if (G_VALUE_HOLDS_BOOLEAN (&val))
uval = g_value_get_boolean (&val) ? 1 : 0;
else if (G_VALUE_HOLDS_UINT (&val)) {
uval = g_value_get_uint (&val);
/* zero means "unspecified" for some NM properties but isn't in the
* allowed kernel range, so reset the property to the default value.
*/
if (option->default_if_zero && uval == 0) {
g_value_unset (&val);
g_value_init (&val, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_param_value_set_default (pspec, &val);
uval = g_value_get_uint (&val);
}
/* Linux kernel bridge interfaces use 'centiseconds' for time-based values.
* In reality it's not centiseconds, but depends on HZ and USER_HZ, which
* is almost always works out to be a multiplier of 100, so we can assume
* centiseconds. See clock_t_to_jiffies().
*/
if (option->user_hz_compensate)
uval *= 100;
} else
nm_assert_not_reached ();
g_value_unset (&val);
nm_sprintf_buf (value, "%u", uval);
if (slave)
nm_platform_sysctl_slave_set_option (nm_device_get_platform (device), ifindex, option->sysname, value);
else
nm_platform_sysctl_master_set_option (nm_device_get_platform (device), ifindex, option->sysname, value);
}
static const NMPlatformBridgeVlan **
setting_vlans_to_platform (GPtrArray *array)
{
NMPlatformBridgeVlan **arr;
NMPlatformBridgeVlan *p_data;
guint i;
if (!array || !array->len)
return NULL;
G_STATIC_ASSERT_EXPR (_nm_alignof (NMPlatformBridgeVlan *) >= _nm_alignof (NMPlatformBridgeVlan));
arr = g_malloc ( (sizeof (NMPlatformBridgeVlan *) * (array->len + 1))
+ (sizeof (NMPlatformBridgeVlan ) * (array->len )));
p_data = (NMPlatformBridgeVlan *) &arr[array->len + 1];
for (i = 0; i < array->len; i++) {
NMBridgeVlan *vlan = array->pdata[i];
guint16 vid_start, vid_end;
nm_bridge_vlan_get_vid_range (vlan, &vid_start, &vid_end);
p_data[i] = (NMPlatformBridgeVlan) {
.vid_start = vid_start,
.vid_end = vid_end,
.pvid = nm_bridge_vlan_is_pvid (vlan),
.untagged = nm_bridge_vlan_is_untagged (vlan),
};
arr[i] = &p_data[i];
}
arr[i] = NULL;
return (const NMPlatformBridgeVlan **) arr;
}
static void
commit_slave_options (NMDevice *device, NMSettingBridgePort *setting)
{
const Option *option;
NMSetting *s;
gs_unref_object NMSetting *s_clear = NULL;
if (setting)
s = NM_SETTING (setting);
else
s = s_clear = nm_setting_bridge_port_new ();
for (option = slave_options; option->name; option++)
commit_option (device, s, option, TRUE);
}
static void
update_connection (NMDevice *device, NMConnection *connection)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
NMSettingBridge *s_bridge = nm_connection_get_setting_bridge (connection);
int ifindex = nm_device_get_ifindex (device);
const Option *option;
gs_free char *stp = NULL;
int stp_value;
if (!s_bridge) {
s_bridge = (NMSettingBridge *) nm_setting_bridge_new ();
nm_connection_add_setting (connection, (NMSetting *) s_bridge);
}
option = master_options;
nm_assert (nm_streq (option->sysname, "stp_state"));
stp = nm_platform_sysctl_master_get_option (nm_device_get_platform (device), ifindex, option->sysname);
stp_value = _nm_utils_ascii_str_to_int64 (stp, 10, option->nm_min, option->nm_max, option->nm_default);
g_object_set (s_bridge, option->name, stp_value, NULL);
option++;
for (; option->name; option++) {
gs_free char *str = nm_platform_sysctl_master_get_option (nm_device_get_platform (device), ifindex, option->sysname);
uint value;
if (!stp_value && option->only_with_stp)
continue;
if (str) {
/* See comments in set_sysfs_uint() about centiseconds. */
if (option->user_hz_compensate) {
value = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min * 100,
option->nm_max * 100,
option->nm_default * 100);
value /= 100;
} else {
value = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min,
option->nm_max,
option->nm_default);
}
g_object_set (s_bridge, option->name, value, NULL);
} else
_LOGW (LOGD_BRIDGE, "failed to read bridge setting '%s'", option->sysname);
}
}
static gboolean
master_update_slave_connection (NMDevice *device,
NMDevice *slave,
NMConnection *connection,
GError **error)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
NMSettingConnection *s_con;
NMSettingBridgePort *s_port;
int ifindex_slave = nm_device_get_ifindex (slave);
const char *iface = nm_device_get_iface (device);
const Option *option;
g_return_val_if_fail (ifindex_slave > 0, FALSE);
s_con = nm_connection_get_setting_connection (connection);
s_port = nm_connection_get_setting_bridge_port (connection);
if (!s_port) {
s_port = (NMSettingBridgePort *) nm_setting_bridge_port_new ();
nm_connection_add_setting (connection, NM_SETTING (s_port));
}
for (option = slave_options; option->name; option++) {
gs_free char *str = nm_platform_sysctl_slave_get_option (nm_device_get_platform (device), ifindex_slave, option->sysname);
uint value;
if (str) {
/* See comments in set_sysfs_uint() about centiseconds. */
if (option->user_hz_compensate) {
value = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min * 100,
option->nm_max * 100,
option->nm_default * 100);
value /= 100;
} else {
value = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min,
option->nm_max,
option->nm_default);
}
g_object_set (s_port, option->name, value, NULL);
} else
_LOGW (LOGD_BRIDGE, "failed to read bridge port setting '%s'", option->sysname);
}
g_object_set (s_con,
NM_SETTING_CONNECTION_MASTER, iface,
NM_SETTING_CONNECTION_SLAVE_TYPE, NM_SETTING_BRIDGE_SETTING_NAME,
NULL);
return TRUE;
}
static gboolean
bridge_set_vlan_options (NMDevice *device, NMSettingBridge *s_bridge)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
gconstpointer hwaddr;
size_t length;
gboolean enabled;
guint16 pvid;
NMPlatform *plat;
int ifindex;
gs_unref_ptrarray GPtrArray *vlans = NULL;
gs_free const NMPlatformBridgeVlan **plat_vlans = NULL;
if (self->vlan_configured)
return TRUE;
plat = nm_device_get_platform (device);
ifindex = nm_device_get_ifindex (device);
enabled = nm_setting_bridge_get_vlan_filtering (s_bridge);
if (!enabled) {
nm_platform_sysctl_master_set_option (plat, ifindex, "vlan_filtering", "0");
nm_platform_sysctl_master_set_option (plat, ifindex, "default_pvid", "1");
nm_platform_link_set_bridge_vlans (plat, ifindex, FALSE, NULL);
return TRUE;
}
hwaddr = nm_platform_link_get_address (plat, ifindex, &length);
g_return_val_if_fail (length == ETH_ALEN, FALSE);
if (nm_utils_hwaddr_matches (hwaddr, ETH_ALEN, nm_ip_addr_zero.addr_eth, ETH_ALEN)) {
/* We need a non-zero MAC address to set the default pvid.
* Retry later. */
return TRUE;
}
self->vlan_configured = TRUE;
/* Filtering must be disabled to change the default PVID */
if (!nm_platform_sysctl_master_set_option (plat, ifindex, "vlan_filtering", "0"))
return FALSE;
/* Clear the default PVID so that we later can force the re-creation of
* default PVID VLANs by writing the option again. */
if (!nm_platform_sysctl_master_set_option (plat, ifindex, "default_pvid", "0"))
return FALSE;
/* Clear all existing VLANs */
if (!nm_platform_link_set_bridge_vlans (plat, ifindex, FALSE, NULL))
return FALSE;
/* Now set the default PVID. After this point the kernel creates
* a PVID VLAN on each port, including the bridge itself. */
pvid = nm_setting_bridge_get_vlan_default_pvid (s_bridge);
if (pvid) {
char value[32];
nm_sprintf_buf (value, "%u", pvid);
if (!nm_platform_sysctl_master_set_option (plat, ifindex, "default_pvid", value))
return FALSE;
}
/* Create VLANs only after setting the default PVID, so that
* any PVID VLAN overrides the bridge's default PVID. */
g_object_get (s_bridge, NM_SETTING_BRIDGE_VLANS, &vlans, NULL);
plat_vlans = setting_vlans_to_platform (vlans);
if ( plat_vlans
&& !nm_platform_link_set_bridge_vlans (plat, ifindex, FALSE, plat_vlans))
return FALSE;
if (!nm_platform_sysctl_master_set_option (plat, ifindex, "vlan_filtering", "1"))
return FALSE;
return TRUE;
}
static NMActStageReturn
act_stage1_prepare (NMDevice *device, NMDeviceStateReason *out_failure_reason)
{
NMConnection *connection;
NMSetting *s_bridge;
const Option *option;
connection = nm_device_get_applied_connection (device);
g_return_val_if_fail (connection, NM_ACT_STAGE_RETURN_FAILURE);
s_bridge = (NMSetting *) nm_connection_get_setting_bridge (connection);
g_return_val_if_fail (s_bridge, NM_ACT_STAGE_RETURN_FAILURE);
for (option = master_options; option->name; option++)
commit_option (device, s_bridge, option, FALSE);
if (!bridge_set_vlan_options (device, (NMSettingBridge *) s_bridge)) {
NM_SET_OUT (out_failure_reason, NM_DEVICE_STATE_REASON_CONFIG_FAILED);
return NM_ACT_STAGE_RETURN_FAILURE;
}
return NM_ACT_STAGE_RETURN_SUCCESS;
}
static void
_bt_register_bridge_cb (GError *error,
gpointer user_data)
{
NMDeviceBridge *self;
if (nm_utils_error_is_cancelled (error, FALSE))
return;
self = user_data;
g_clear_object (&self->bt_cancellable);
if (error) {
_LOGD (LOGD_DEVICE, "bluetooth NAP server failed to register bridge: %s", error->message);
nm_device_state_changed (NM_DEVICE (self), NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_BT_FAILED);
return;
}
nm_device_activate_schedule_stage3_ip_config_start (NM_DEVICE (self));
}
void
_nm_device_bridge_notify_unregister_bt_nap (NMDevice *device,
const char *reason)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
_LOGD (LOGD_DEVICE, "bluetooth NAP server unregistered from bridge: %s%s",
reason,
self->bt_registered ? "" : " (was no longer registered)");
nm_clear_g_cancellable (&self->bt_cancellable);
if (self->bt_registered) {
self->bt_registered = FALSE;
nm_device_state_changed (device,
NM_DEVICE_STATE_FAILED,
NM_DEVICE_STATE_REASON_BT_FAILED);
}
}
static NMActStageReturn
act_stage2_config (NMDevice *device, NMDeviceStateReason *out_failure_reason)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
NMConnection *connection;
NMSettingBluetooth *s_bt;
connection = nm_device_get_applied_connection (device);
s_bt = _nm_connection_get_setting_bluetooth_for_nap (connection);
if (s_bt) {
gs_free_error GError *error = NULL;
if (!nm_bt_vtable_network_server) {
_LOGD (LOGD_DEVICE, "bluetooth NAP server failed because bluetooth plugin not available");
*out_failure_reason = NM_DEVICE_STATE_REASON_BT_FAILED;
return NM_ACT_STAGE_RETURN_FAILURE;
}
if (self->bt_cancellable)
return NM_ACT_STAGE_RETURN_POSTPONE;
self->bt_cancellable = g_cancellable_new ();
if (!nm_bt_vtable_network_server->register_bridge (nm_bt_vtable_network_server,
nm_setting_bluetooth_get_bdaddr (s_bt),
device,
self->bt_cancellable,
_bt_register_bridge_cb,
device,
&error)) {
_LOGD (LOGD_DEVICE, "bluetooth NAP server failed to register bridge: %s", error->message);
*out_failure_reason = NM_DEVICE_STATE_REASON_BT_FAILED;
return NM_ACT_STAGE_RETURN_FAILURE;
}
self->bt_registered = TRUE;
return NM_ACT_STAGE_RETURN_POSTPONE;
}
return NM_ACT_STAGE_RETURN_SUCCESS;
}
static void
deactivate (NMDevice *device)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
_LOGD (LOGD_DEVICE, "deactivate bridge%s",
self->bt_registered ? " (registered as NAP bluetooth device)" : "");
self->vlan_configured = FALSE;
nm_clear_g_cancellable (&self->bt_cancellable);
if (self->bt_registered) {
self->bt_registered = FALSE;
nm_bt_vtable_network_server->unregister_bridge (nm_bt_vtable_network_server,
device);
}
}
static gboolean
enslave_slave (NMDevice *device,
NMDevice *slave,
NMConnection *connection,
gboolean configure)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
NMConnection *master_connection;
NMSettingBridge *s_bridge;
NMSettingBridgePort *s_port;
if (configure) {
if (!nm_platform_link_enslave (nm_device_get_platform (device), nm_device_get_ip_ifindex (device), nm_device_get_ip_ifindex (slave)))
return FALSE;
master_connection = nm_device_get_applied_connection (device);
nm_assert (master_connection);
s_bridge = nm_connection_get_setting_bridge (master_connection);
nm_assert (s_bridge);
s_port = nm_connection_get_setting_bridge_port (connection);
bridge_set_vlan_options (device, s_bridge);
if (nm_setting_bridge_get_vlan_filtering (s_bridge)) {
gs_free const NMPlatformBridgeVlan **plat_vlans = NULL;
gs_unref_ptrarray GPtrArray *vlans = NULL;
if (s_port)
g_object_get (s_port, NM_SETTING_BRIDGE_PORT_VLANS, &vlans, NULL);
plat_vlans = setting_vlans_to_platform (vlans);
/* Since the link was just enslaved, there are no existing VLANs
* (except for the default one) and so there's no need to flush. */
if ( plat_vlans
&& !nm_platform_link_set_bridge_vlans (nm_device_get_platform (slave),
nm_device_get_ifindex (slave),
TRUE,
plat_vlans))
return FALSE;
}
commit_slave_options (slave, s_port);
_LOGI (LOGD_BRIDGE, "attached bridge port %s",
nm_device_get_ip_iface (slave));
} else {
_LOGI (LOGD_BRIDGE, "bridge port %s was attached",
nm_device_get_ip_iface (slave));
}
return TRUE;
}
static void
release_slave (NMDevice *device,
NMDevice *slave,
gboolean configure)
{
NMDeviceBridge *self = NM_DEVICE_BRIDGE (device);
gboolean success;
int ifindex_slave;
int ifindex;
if (configure) {
ifindex = nm_device_get_ifindex (device);
if ( ifindex <= 0
|| !nm_platform_link_get (nm_device_get_platform (device), ifindex))
configure = FALSE;
}
ifindex_slave = nm_device_get_ip_ifindex (slave);
if (ifindex_slave <= 0) {
_LOGD (LOGD_TEAM, "bond slave %s is already released", nm_device_get_ip_iface (slave));
return;
}
if (configure) {
success = nm_platform_link_release (nm_device_get_platform (device),
nm_device_get_ip_ifindex (device),
ifindex_slave);
if (success) {
_LOGI (LOGD_BRIDGE, "detached bridge port %s",
nm_device_get_ip_iface (slave));
} else {
_LOGW (LOGD_BRIDGE, "failed to detach bridge port %s",
nm_device_get_ip_iface (slave));
}
} else {
_LOGI (LOGD_BRIDGE, "bridge port %s was detached",
nm_device_get_ip_iface (slave));
}
}
static gboolean
create_and_realize (NMDevice *device,
NMConnection *connection,
NMDevice *parent,
const NMPlatformLink **out_plink,
GError **error)
{
NMSettingBridge *s_bridge;
const char *iface = nm_device_get_iface (device);
const char *hwaddr;
gs_free char *hwaddr_cloned = NULL;
guint8 mac_address[NM_UTILS_HWADDR_LEN_MAX];
int r;
nm_assert (iface);
s_bridge = nm_connection_get_setting_bridge (connection);
nm_assert (s_bridge);
hwaddr = nm_setting_bridge_get_mac_address (s_bridge);
if ( !hwaddr
&& nm_device_hw_addr_get_cloned (device, connection, FALSE,
&hwaddr_cloned, NULL, NULL)) {
/* The cloned MAC address might by dynamic, for example with stable-id="${RANDOM}".
* It's a bit odd that we first create the device with one dynamic address,
* and later on may reset it to another. That is, because we don't cache
* the dynamic address in @device, like we do during nm_device_hw_addr_set_cloned(). */
hwaddr = hwaddr_cloned;
}
if (hwaddr) {
if (!nm_utils_hwaddr_aton (hwaddr, mac_address, ETH_ALEN)) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED,
"Invalid hardware address '%s'",
hwaddr);
g_return_val_if_reached (FALSE);
}
}
r = nm_platform_link_bridge_add (nm_device_get_platform (device),
iface,
hwaddr ? mac_address : NULL,
hwaddr ? ETH_ALEN : 0,
out_plink);
if (r < 0) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED,
"Failed to create bridge interface '%s' for '%s': %s",
iface,
nm_connection_get_id (connection),
nm_strerror (r));
return FALSE;
}
return TRUE;
}
/*****************************************************************************/
static void
nm_device_bridge_init (NMDeviceBridge * self)
{
nm_assert (nm_device_is_master (NM_DEVICE (self)));
}
static const NMDBusInterfaceInfoExtended interface_info_device_bridge = {
.parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT (
NM_DBUS_INTERFACE_DEVICE_BRIDGE,
.signals = NM_DEFINE_GDBUS_SIGNAL_INFOS (
&nm_signal_info_property_changed_legacy,
),
.properties = NM_DEFINE_GDBUS_PROPERTY_INFOS (
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("HwAddress", "s", NM_DEVICE_HW_ADDRESS),
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Carrier", "b", NM_DEVICE_CARRIER),
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Slaves", "ao", NM_DEVICE_SLAVES),
),
),
.legacy_property_changed = TRUE,
};
static void
nm_device_bridge_class_init (NMDeviceBridgeClass *klass)
{
NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass);
NMDeviceClass *device_class = NM_DEVICE_CLASS (klass);
dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_bridge);
device_class->connection_type_supported = NM_SETTING_BRIDGE_SETTING_NAME;
device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_BRIDGE);
device_class->is_master = TRUE;
device_class->get_generic_capabilities = get_generic_capabilities;
device_class->check_connection_compatible = check_connection_compatible;
device_class->check_connection_available = check_connection_available;
device_class->complete_connection = complete_connection;
device_class->update_connection = update_connection;
device_class->master_update_slave_connection = master_update_slave_connection;
device_class->create_and_realize = create_and_realize;
device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE;
device_class->act_stage1_prepare = act_stage1_prepare;
device_class->act_stage2_config = act_stage2_config;
device_class->deactivate = deactivate;
device_class->enslave_slave = enslave_slave;
device_class->release_slave = release_slave;
device_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
}
/*****************************************************************************/
#define NM_TYPE_BRIDGE_DEVICE_FACTORY (nm_bridge_device_factory_get_type ())
#define NM_BRIDGE_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_BRIDGE_DEVICE_FACTORY, NMBridgeDeviceFactory))
static NMDevice *
create_device (NMDeviceFactory *factory,
const char *iface,
const NMPlatformLink *plink,
NMConnection *connection,
gboolean *out_ignore)
{
return (NMDevice *) g_object_new (NM_TYPE_DEVICE_BRIDGE,
NM_DEVICE_IFACE, iface,
NM_DEVICE_DRIVER, "bridge",
NM_DEVICE_TYPE_DESC, "Bridge",
NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_BRIDGE,
NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_BRIDGE,
NULL);
}
static gboolean
match_connection (NMDeviceFactory *factory,
NMConnection *connection)
{
const char *type = nm_connection_get_connection_type (connection);
if (nm_streq (type, NM_SETTING_BRIDGE_SETTING_NAME))
return TRUE;
nm_assert (nm_streq (type, NM_SETTING_BLUETOOTH_SETTING_NAME));
if (!_nm_connection_get_setting_bluetooth_for_nap (connection))
return FALSE;
if (!g_type_from_name ("NMBluezManager")) {
/* bluetooth NAP connections are handled by bridge factory. However,
* it needs help from the bluetooth plugin, so if the plugin is not loaded,
* we claim not to support it. */
return FALSE;
}
return TRUE;
}
NM_DEVICE_FACTORY_DEFINE_INTERNAL (BRIDGE, Bridge, bridge,
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_BRIDGE)
NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_BRIDGE_SETTING_NAME, NM_SETTING_BLUETOOTH_SETTING_NAME),
factory_class->create_device = create_device;
factory_class->match_connection = match_connection;
);
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