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device: bond: implement connection reapply

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Only a couple of bond options (active_slave, primary) are supported at
for now.
This commit is contained in:
Beniamino Galvani 2017-03-03 12:08:39 +01:00
parent 86388f41b8
commit 1ba25fd19f
1 changed files with 112 additions and 0 deletions
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112
src/devices/nm-device-bond.c
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@ -498,6 +498,116 @@ create_and_realize (NMDevice *device,
return TRUE;
}
static gboolean
check_changed_options (NMSettingBond *s_a, NMSettingBond *s_b, GError **error)
{
guint i, num;
const char *name, *value_a, *value_b;
/* Check that options in @s_a have compatible changes in @s_b */
num = nm_setting_bond_get_num_options (s_a);
for (i = 0; i < num; i++) {
nm_setting_bond_get_option (s_a, i, &name, &value_a);
/* We support changes to these */
if (NM_IN_STRSET (name,
NM_SETTING_BOND_OPTION_ACTIVE_SLAVE,
NM_SETTING_BOND_OPTION_PRIMARY)) {
continue;
}
/* Missing in @s_b, but has a default value in @s_a */
value_b = nm_setting_bond_get_option_by_name (s_b, name);
if ( !value_b
&& nm_streq0 (value_a, nm_setting_bond_get_option_default (s_a, name))) {
continue;
}
/* Reject any other changes */
if (!nm_streq0 (value_a, value_b)) {
g_set_error (error,
NM_DEVICE_ERROR,
NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
"Can't reapply '%s' bond option",
name);
return FALSE;
}
}
return TRUE;
}
static gboolean
can_reapply_change (NMDevice *device,
const char *setting_name,
NMSetting *s_old,
NMSetting *s_new,
GHashTable *diffs,
GError **error)
{
NMDeviceClass *device_class;
NMSettingBond *s_bond_old, *s_bond_new;
/* Only handle bond setting here, delegate other settings to parent class */
if (nm_streq (setting_name, NM_SETTING_BOND_SETTING_NAME)) {
if (!nm_device_hash_check_invalid_keys (diffs,
NM_SETTING_BOND_SETTING_NAME,
error,
NM_SETTING_BOND_OPTIONS))
return FALSE;
s_bond_old = NM_SETTING_BOND (s_old);
s_bond_new = NM_SETTING_BOND (s_new);
if ( !check_changed_options (s_bond_old, s_bond_new, error)
|| !check_changed_options (s_bond_new, s_bond_old, error)) {
return FALSE;
}
return TRUE;
}
device_class = NM_DEVICE_CLASS (nm_device_bond_parent_class);
return device_class->can_reapply_change (device,
setting_name,
s_old,
s_new,
diffs,
error);
}
static void
reapply_connection (NMDevice *device, NMConnection *con_old, NMConnection *con_new)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
const char *value;
NMSettingBond *s_bond;
NMBondMode mode;
NM_DEVICE_CLASS (nm_device_bond_parent_class)->reapply_connection (device,
con_old,
con_new);
_LOGD (LOGD_BOND, "reapplying bond settings");
s_bond = nm_connection_get_setting_bond (con_new);
g_return_if_fail (s_bond);
value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_MODE);
if (!value)
value = "balance-rr";
mode = _nm_setting_bond_mode_from_string (value);
g_return_if_fail (mode != NM_BOND_MODE_UNKNOWN);
/* Primary */
value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_PRIMARY);
set_bond_attr (device, mode, NM_SETTING_BOND_OPTION_PRIMARY, value ? value : "");
/* Active slave */
set_simple_option (device, mode, s_bond, NM_SETTING_BOND_OPTION_ACTIVE_SLAVE);
}
/*****************************************************************************/
static void
@ -526,6 +636,8 @@ nm_device_bond_class_init (NMDeviceBondClass *klass)
parent_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
parent_class->enslave_slave = enslave_slave;
parent_class->release_slave = release_slave;
parent_class->can_reapply_change = can_reapply_change;
parent_class->reapply_connection = reapply_connection;
nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (klass),
NMDBUS_TYPE_DEVICE_BOND_SKELETON,