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NetworkManager/src/devices/nm-device-bridge.c
Thomas Haller 6044fce960
bridge: refactor definition of options array to use a macro and C99 designated initializer 
Yes, it's a macro and it's more lines of code.

But I think this is much easier to read and to maintain.
2020-05-08 08:02:51 +02:00

1139 lines
36 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 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;
}
static void
from_sysfs_group_address (const char *value, GValue *out)
{
if (!nm_utils_hwaddr_matches (value, -1, "01:80:C2:00:00:00", -1))
g_value_set_string (out, value);
}
static const char *
to_sysfs_group_address (GValue *value)
{
return g_value_get_string (value) ?: "01:80:C2:00:00:00";
}
static void
from_sysfs_vlan_protocol (const char *value, GValue *out)
{
switch (_nm_utils_ascii_str_to_uint64 (value, 16, 0, G_MAXUINT, -1)) {
case ETH_P_8021Q:
/* default value */
break;
case ETH_P_8021AD:
g_value_set_string (out, "802.1ad");
break;
}
}
static const char *
to_sysfs_vlan_protocol (GValue *value)
{
const char *str = g_value_get_string (value);
if (nm_streq0 (str, "802.1ad")) {
G_STATIC_ASSERT_EXPR (ETH_P_8021AD == 0x88A8);
return "0x88A8";
}
G_STATIC_ASSERT_EXPR (ETH_P_8021Q == 0x8100);
return "0x8100";
}
static const char *
to_sysfs_multicast_router (GValue *value)
{
const char *str = g_value_get_string (value);
if (nm_streq0 (str, "disabled"))
return "0";
if (nm_streq0 (str, "auto"))
return "1";
if (nm_streq0 (str, "enabled"))
return "2";
return "1";
}
static void
from_sysfs_multicast_router (const char *value, GValue *out)
{
switch (_nm_utils_ascii_str_to_uint64 (value, 10, 0, G_MAXUINT, -1)) {
case 0:
g_value_set_string (out, "disabled");
break;
case 2:
g_value_set_string (out, "enabled");
break;
case 1:
default:
/* default value */
break;
}
}
/*****************************************************************************/
typedef struct {
const char *name;
const char *sysname;
const char *(*to_sysfs) (GValue *value);
void (*from_sysfs) (const char *value, GValue *out);
guint64 nm_min;
guint64 nm_max;
guint64 nm_default;
bool default_if_zero;
bool user_hz_compensate;
bool only_with_stp;
} Option;
#define OPTION(_name, _sysname, ...) \
{ \
.name = ""_name"", \
.sysname = ""_sysname"", \
__VA_ARGS__ \
}
#define OPTION_TYPE_INT(min, max, def) \
.nm_min = (min), .nm_max = (max), .nm_default = (def)
#define OPTION_TYPE_BOOL(def) \
OPTION_TYPE_INT (FALSE, TRUE, def)
#define OPTION_TYPE_TOFROM(to, fro) \
.to_sysfs = (to), .from_sysfs = (fro)
static const Option master_options[] = {
OPTION (NM_SETTING_BRIDGE_STP, /* this must stay as the first item */
"stp_state",
OPTION_TYPE_BOOL (NM_BRIDGE_STP_DEF),
),
OPTION (NM_SETTING_BRIDGE_PRIORITY,
"priority",
OPTION_TYPE_INT (NM_BRIDGE_PRIORITY_MIN, NM_BRIDGE_PRIORITY_MAX, NM_BRIDGE_PRIORITY_DEF),
.default_if_zero = TRUE,
.only_with_stp = TRUE,
),
OPTION (NM_SETTING_BRIDGE_FORWARD_DELAY,
"forward_delay",
OPTION_TYPE_INT (NM_BRIDGE_FORWARD_DELAY_MIN, NM_BRIDGE_FORWARD_DELAY_MAX, NM_BRIDGE_FORWARD_DELAY_DEF),
.default_if_zero = TRUE,
.user_hz_compensate = TRUE,
.only_with_stp = TRUE,
),
OPTION (NM_SETTING_BRIDGE_HELLO_TIME,
"hello_time",
OPTION_TYPE_INT (NM_BRIDGE_HELLO_TIME_MIN, NM_BRIDGE_HELLO_TIME_MAX, NM_BRIDGE_HELLO_TIME_DEF),
.default_if_zero = TRUE,
.user_hz_compensate = TRUE,
.only_with_stp = TRUE,
),
OPTION (NM_SETTING_BRIDGE_MAX_AGE,
"max_age",
OPTION_TYPE_INT (NM_BRIDGE_MAX_AGE_MIN, NM_BRIDGE_MAX_AGE_MAX, NM_BRIDGE_MAX_AGE_DEF),
.default_if_zero = TRUE,
.user_hz_compensate = TRUE,
.only_with_stp = TRUE,
),
OPTION (NM_SETTING_BRIDGE_AGEING_TIME,
"ageing_time",
OPTION_TYPE_INT (NM_BRIDGE_AGEING_TIME_MIN, NM_BRIDGE_AGEING_TIME_MAX, NM_BRIDGE_AGEING_TIME_DEF),
.default_if_zero = TRUE,
.user_hz_compensate = TRUE,
),
OPTION (NM_SETTING_BRIDGE_GROUP_FORWARD_MASK,
"group_fwd_mask",
OPTION_TYPE_INT (0, 0xFFFF, 0),
.default_if_zero = TRUE,
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_HASH_MAX,
"hash_max",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_HASH_MAX_MIN, NM_BRIDGE_MULTICAST_HASH_MAX_MAX, NM_BRIDGE_MULTICAST_HASH_MAX_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_LAST_MEMBER_COUNT,
"multicast_last_member_count",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_LAST_MEMBER_COUNT_MIN, NM_BRIDGE_MULTICAST_LAST_MEMBER_COUNT_MAX, NM_BRIDGE_MULTICAST_LAST_MEMBER_COUNT_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_LAST_MEMBER_INTERVAL,
"multicast_last_member_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_LAST_MEMBER_INTERVAL_MIN, NM_BRIDGE_MULTICAST_LAST_MEMBER_INTERVAL_MAX, NM_BRIDGE_MULTICAST_LAST_MEMBER_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_MEMBERSHIP_INTERVAL,
"multicast_membership_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_MEMBERSHIP_INTERVAL_MIN, NM_BRIDGE_MULTICAST_MEMBERSHIP_INTERVAL_MAX, NM_BRIDGE_MULTICAST_MEMBERSHIP_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_QUERIER,
"multicast_querier",
OPTION_TYPE_BOOL (NM_BRIDGE_MULTICAST_QUERIER_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_QUERIER_INTERVAL,
"multicast_querier_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_QUERIER_INTERVAL_MIN, NM_BRIDGE_MULTICAST_QUERIER_INTERVAL_MAX, NM_BRIDGE_MULTICAST_QUERIER_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_QUERY_INTERVAL,
"multicast_query_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_QUERY_INTERVAL_MIN, NM_BRIDGE_MULTICAST_QUERY_INTERVAL_MAX, NM_BRIDGE_MULTICAST_QUERY_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_QUERY_RESPONSE_INTERVAL,
"multicast_query_response_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_QUERY_RESPONSE_INTERVAL_MIN, NM_BRIDGE_MULTICAST_QUERY_RESPONSE_INTERVAL_MAX, NM_BRIDGE_MULTICAST_QUERY_RESPONSE_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_QUERY_USE_IFADDR,
"multicast_query_use_ifaddr",
OPTION_TYPE_BOOL (NM_BRIDGE_MULTICAST_QUERY_USE_IFADDR_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_SNOOPING,
"multicast_snooping",
OPTION_TYPE_BOOL (NM_BRIDGE_MULTICAST_SNOOPING_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_ROUTER,
"multicast_router",
OPTION_TYPE_TOFROM (to_sysfs_multicast_router, from_sysfs_multicast_router),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_STARTUP_QUERY_COUNT,
"multicast_startup_query_count",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_STARTUP_QUERY_COUNT_MIN, NM_BRIDGE_MULTICAST_STARTUP_QUERY_COUNT_MAX, NM_BRIDGE_MULTICAST_STARTUP_QUERY_COUNT_DEF),
),
OPTION (NM_SETTING_BRIDGE_MULTICAST_STARTUP_QUERY_INTERVAL,
"multicast_startup_query_interval",
OPTION_TYPE_INT (NM_BRIDGE_MULTICAST_STARTUP_QUERY_INTERVAL_MIN, NM_BRIDGE_MULTICAST_STARTUP_QUERY_INTERVAL_MAX, NM_BRIDGE_MULTICAST_STARTUP_QUERY_INTERVAL_DEF),
),
OPTION (NM_SETTING_BRIDGE_GROUP_ADDRESS,
"group_addr",
OPTION_TYPE_TOFROM (to_sysfs_group_address, from_sysfs_group_address),
),
OPTION (NM_SETTING_BRIDGE_VLAN_PROTOCOL,
"vlan_protocol",
OPTION_TYPE_TOFROM (to_sysfs_vlan_protocol, from_sysfs_vlan_protocol),
),
OPTION (NM_SETTING_BRIDGE_VLAN_STATS_ENABLED,
"vlan_stats_enabled",
OPTION_TYPE_BOOL (NM_BRIDGE_VLAN_STATS_ENABLED_DEF)
),
{ 0, }
};
static const Option slave_options[] = {
OPTION (NM_SETTING_BRIDGE_PORT_PRIORITY,
"priority",
OPTION_TYPE_INT (NM_BRIDGE_PORT_PRIORITY_MIN, NM_BRIDGE_PORT_PRIORITY_MAX, NM_BRIDGE_PORT_PRIORITY_DEF),
.default_if_zero = TRUE,
),
OPTION (NM_SETTING_BRIDGE_PORT_PATH_COST,
"path_cost",
OPTION_TYPE_INT (NM_BRIDGE_PORT_PATH_COST_MIN, NM_BRIDGE_PORT_PATH_COST_MAX, NM_BRIDGE_PORT_PATH_COST_DEF),
.default_if_zero = TRUE,
),
OPTION (NM_SETTING_BRIDGE_PORT_HAIRPIN_MODE,
"hairpin_mode",
OPTION_TYPE_BOOL (FALSE),
),
{ 0 }
};
static void
commit_option (NMDevice *device, NMSetting *setting, const Option *option, gboolean slave)
{
int ifindex = nm_device_get_ifindex (device);
nm_auto_unset_gvalue GValue val = G_VALUE_INIT;
GParamSpec *pspec;
const char *value;
char value_buf[100];
if (slave)
nm_assert (NM_IS_SETTING_BRIDGE_PORT (setting));
else
nm_assert (NM_IS_SETTING_BRIDGE (setting));
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (setting), option->name);
nm_assert (pspec);
g_value_init (&val, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_object_get_property ((GObject *) setting, option->name, &val);
if (option->to_sysfs) {
value = option->to_sysfs (&val);
goto out;
}
switch (pspec->value_type) {
case G_TYPE_BOOLEAN:
value = g_value_get_boolean (&val) ? "1" : "0";
break;
case G_TYPE_UINT64:
case G_TYPE_UINT: {
guint64 uval;
if (pspec->value_type == G_TYPE_UINT64)
uval = g_value_get_uint64 (&val);
else
uval = (guint) 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) {
if (pspec->value_type == G_TYPE_UINT64)
uval = NM_G_PARAM_SPEC_GET_DEFAULT_UINT64 (pspec);
else
uval = NM_G_PARAM_SPEC_GET_DEFAULT_UINT (pspec);
}
/* 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;
if (pspec->value_type == G_TYPE_UINT64)
nm_sprintf_buf (value_buf, "%"G_GUINT64_FORMAT, uval);
else
nm_sprintf_buf (value_buf, "%u", (guint) uval);
value = value_buf;
}
break;
case G_TYPE_STRING:
value = g_value_get_string (&val);
break;
default:
nm_assert_not_reached ();
value = NULL;
break;
}
out:
if (!value)
return;
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++) {
nm_auto_unset_gvalue GValue value = G_VALUE_INIT;
gs_free char *str = NULL;
GParamSpec *pspec;
str = nm_platform_sysctl_master_get_option (nm_device_get_platform (device), ifindex, option->sysname);
pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (s_bridge), option->name);
if (!stp_value && option->only_with_stp)
continue;
if (!str) {
_LOGW (LOGD_BRIDGE, "failed to read bridge setting '%s'", option->sysname);
continue;
}
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
if (option->from_sysfs) {
option->from_sysfs (str, &value);
goto out;
}
switch (pspec->value_type) {
case G_TYPE_UINT64:
case G_TYPE_UINT: {
guint64 uvalue;
/* See comments in set_sysfs_uint() about centiseconds. */
if (option->user_hz_compensate) {
uvalue = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min * 100,
option->nm_max * 100,
option->nm_default * 100);
uvalue /= 100;
} else {
uvalue = _nm_utils_ascii_str_to_uint64 (str, 10,
option->nm_min,
option->nm_max,
option->nm_default);
}
if (pspec->value_type == G_TYPE_UINT64)
g_value_set_uint64(&value, uvalue);
else
g_value_set_uint (&value, (guint) uvalue);
}
break;
case G_TYPE_BOOLEAN: {
gboolean bvalue;
bvalue = _nm_utils_ascii_str_to_int64 (str, 10,
option->nm_min,
option->nm_max,
option->nm_default);
g_value_set_boolean (&value, bvalue);
}
break;
case G_TYPE_STRING:
g_value_set_string (&value, str);
break;
default:
nm_assert_not_reached ();
break;
}
out:
g_object_set_property (G_OBJECT (s_bridge), option->name, &value);
}
}
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))
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_stage2_device_config (NM_DEVICE (self), FALSE);
}
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;
gs_free_error GError *error = NULL;
connection = nm_device_get_applied_connection (device);
s_bt = _nm_connection_get_setting_bluetooth_for_nap (connection);
if (!s_bt)
return NM_ACT_STAGE_RETURN_SUCCESS;
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;
if (self->bt_registered)
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;
}
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)) {
/* FIXME: we set the MAC address when creating the interface, while the
* NMDevice is still unrealized. As we afterwards realize the device, it
* forgets the parameters for the cloned MAC address, and in stage 1
* it might create a different MAC address. That should be fixed by
* better handling device realization. */
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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