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NetworkManager/libnm-core/nm-setting-wired.h
Thomas Haller 96cabbcbb8 all: make MAC address randomization algorithm configurable 
For the per-connection settings "ethernet.cloned-mac-address"
and "wifi.cloned-mac-address", and for the per-device setting
"wifi.scan-rand-mac-address", we may generate MAC addresses using
either the "random" or "stable" algorithm.

Add new properties "generate-mac-address-mask" that allow to configure
which bits of the MAC address will be scrambled.

By default, the "random" and "stable" algorithms scamble all bits
of the MAC address, including the OUI part and generate a locally-
administered, unicast address.

By specifying a MAC address mask, we can now configure to perserve
parts of the current MAC address of the device. For example, setting
"FF:FF:FF:00:00:00" will preserve the first 3 octects of the current
MAC address.

One can also explicitly specify a MAC address to use instead of the
current MAC address. For example, "FF:FF:FF:00:00:00 68:F7:28:00:00:00"
sets the OUI part of the MAC address to "68:F7:28" while scrambling
the last 3 octects.
Similarly, "02:00:00:00:00:00 00:00:00:00:00:00" will scamble
all bits of the MAC address, except clearing the second-least
significant bit. Thus, creating a burned-in address, globally
administered.

One can also supply a list of MAC addresses like
"FF:FF:FF:00:00:00 68:F7:28:00:00:00 00:0C:29:00:00:00 ..." in which
case a MAC address is choosen randomly.

To fully scamble the MAC address one can configure
"02:00:00:00:00:00 00:00:00:00:00:00 02:00:00:00:00:00".
which also randomly creates either a locally or globally administered
address.

With this, the following macchanger options can be implemented:

  `macchanger --random`
   This is the default if no mask is configured.
   -> ""
   while is the same as:
   -> "00:00:00:00:00:00"
   -> "02:00:00:00:00:00 02:00:00:00:00:00"

  `macchanger --random --bia`
   -> "02:00:00:00:00:00 00:00:00:00:00:00"

  `macchanger --ending`
   This option cannot be fully implemented, because macchanger
   uses the current MAC address but also implies --bia.
   -> "FF:FF:FF:00:00:00"
      This would yields the same result only if the current MAC address
      is already a burned-in address too. Otherwise, it has not the same
      effect as --ending.
   -> "FF:FF:FF:00:00:00 <MAC_ADDR>"
      Alternatively, instead of using the current MAC address,
      spell the OUI part out. But again, that is not really the
      same as macchanger does because you explictly have to name
      the OUI part to use.

  `machanger --another`
  `machanger --another_any`
  -> "FF:FF:FF:00:00:00 <MAC_ADDR> <MAC_ADDR> ..."
     "$(printf "FF:FF:FF:00:00:00 %s\n" "$(sed -n 's/^\([0-9a-fA-F][0-9a-fA-F]\) \([0-9a-fA-F][0-9a-fA-F]\) \([0-9a-fA-F][0-9a-fA-F]\) .*/\1:\2:\3:00:00:00/p' /usr/share/macchanger/wireless.list | xargs)")"
2016-06-30 08:32:50 +02:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
* Copyright 2007 - 2014 Red Hat, Inc.
* Copyright 2007 - 2008 Novell, Inc.
*/
#ifndef __NM_SETTING_WIRED_H__
#define __NM_SETTING_WIRED_H__
#if !defined (__NETWORKMANAGER_H_INSIDE__) && !defined (NETWORKMANAGER_COMPILATION)
#error "Only <NetworkManager.h> can be included directly."
#endif
#include <nm-setting.h>
G_BEGIN_DECLS
#define NM_TYPE_SETTING_WIRED (nm_setting_wired_get_type ())
#define NM_SETTING_WIRED(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_SETTING_WIRED, NMSettingWired))
#define NM_SETTING_WIRED_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_SETTING_WIRED, NMSettingWiredClass))
#define NM_IS_SETTING_WIRED(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_SETTING_WIRED))
#define NM_IS_SETTING_WIRED_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_SETTING_WIRED))
#define NM_SETTING_WIRED_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_SETTING_WIRED, NMSettingWiredClass))
#define NM_SETTING_WIRED_SETTING_NAME "802-3-ethernet"
/**
* NMSettingWiredWakeOnLan:
* @NM_SETTING_WIRED_WAKE_ON_LAN_NONE: Wake-on-LAN disabled
* @NM_SETTING_WIRED_WAKE_ON_LAN_PHY: Wake on PHY activity
* @NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST: Wake on unicast messages
* @NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST: Wake on multicast messages
* @NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST: Wake on broadcast messages
* @NM_SETTING_WIRED_WAKE_ON_LAN_ARP: Wake on ARP
* @NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC: Wake on magic packet
* @NM_SETTING_WIRED_WAKE_ON_LAN_ALL: Wake on all events. This does not
* include the exclusive flags @NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT or
* @NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE.
* @NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT: Use the default value
* @NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE: Don't change configured settings
* @NM_SETTING_WIRED_WAKE_ON_LAN_EXCLUSIVE_FLAGS: Mask of flags that are
* incompatible with other flags
*
* Options for #NMSettingWired:wake-on-lan. Note that not all options
* are supported by all devices.
*
* Since: 1.2
*/
typedef enum { /*< flags >*/
NM_SETTING_WIRED_WAKE_ON_LAN_NONE = 0, /*< skip >*/
NM_SETTING_WIRED_WAKE_ON_LAN_PHY = (1 << 1),
NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST = (1 << 2),
NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST = (1 << 3),
NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST = (1 << 4),
NM_SETTING_WIRED_WAKE_ON_LAN_ARP = (1 << 5),
NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC = (1 << 6),
_NM_SETTING_WIRED_WAKE_ON_LAN_LAST_OPT, /*< skip >*/
NM_SETTING_WIRED_WAKE_ON_LAN_ALL = (((_NM_SETTING_WIRED_WAKE_ON_LAN_LAST_OPT - 1) << 1) - 1) - (1 << 0 /*DEFAULT*/), /*< skip >*/
NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT = (1 << 0),
NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE = (1 << 15),
NM_SETTING_WIRED_WAKE_ON_LAN_EXCLUSIVE_FLAGS = NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT | NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE, /*< skip >*/
} NMSettingWiredWakeOnLan;
#define NM_SETTING_WIRED_PORT "port"
#define NM_SETTING_WIRED_SPEED "speed"
#define NM_SETTING_WIRED_DUPLEX "duplex"
#define NM_SETTING_WIRED_AUTO_NEGOTIATE "auto-negotiate"
#define NM_SETTING_WIRED_MAC_ADDRESS "mac-address"
#define NM_SETTING_WIRED_CLONED_MAC_ADDRESS "cloned-mac-address"
#define NM_SETTING_WIRED_GENERATE_MAC_ADDRESS_MASK "generate-mac-address-mask"
#define NM_SETTING_WIRED_MAC_ADDRESS_BLACKLIST "mac-address-blacklist"
#define NM_SETTING_WIRED_MTU "mtu"
#define NM_SETTING_WIRED_S390_SUBCHANNELS "s390-subchannels"
#define NM_SETTING_WIRED_S390_NETTYPE "s390-nettype"
#define NM_SETTING_WIRED_S390_OPTIONS "s390-options"
#define NM_SETTING_WIRED_WAKE_ON_LAN "wake-on-lan"
#define NM_SETTING_WIRED_WAKE_ON_LAN_PASSWORD "wake-on-lan-password"
/**
* NMSettingWired:
*/
struct _NMSettingWired {
NMSetting parent;
};
typedef struct {
NMSettingClass parent;
/*< private >*/
gpointer padding[4];
} NMSettingWiredClass;
GType nm_setting_wired_get_type (void);
NMSetting * nm_setting_wired_new (void);
const char * nm_setting_wired_get_port (NMSettingWired *setting);
guint32 nm_setting_wired_get_speed (NMSettingWired *setting);
const char * nm_setting_wired_get_duplex (NMSettingWired *setting);
gboolean nm_setting_wired_get_auto_negotiate (NMSettingWired *setting);
const char * nm_setting_wired_get_mac_address (NMSettingWired *setting);
const char * nm_setting_wired_get_cloned_mac_address (NMSettingWired *setting);
NM_AVAILABLE_IN_1_4
const char * nm_setting_wired_get_generate_mac_address_mask (NMSettingWired *setting);
const char * const *nm_setting_wired_get_mac_address_blacklist (NMSettingWired *setting);
guint32 nm_setting_wired_get_num_mac_blacklist_items (NMSettingWired *setting);
const char * nm_setting_wired_get_mac_blacklist_item (NMSettingWired *setting,
guint32 idx);
gboolean nm_setting_wired_add_mac_blacklist_item (NMSettingWired *setting,
const char *mac);
void nm_setting_wired_remove_mac_blacklist_item (NMSettingWired *setting,
guint32 idx);
gboolean nm_setting_wired_remove_mac_blacklist_item_by_value (NMSettingWired *setting,
const char *mac);
void nm_setting_wired_clear_mac_blacklist_items (NMSettingWired *setting);
guint32 nm_setting_wired_get_mtu (NMSettingWired *setting);
const char * const *nm_setting_wired_get_s390_subchannels (NMSettingWired *setting);
const char * nm_setting_wired_get_s390_nettype (NMSettingWired *setting);
guint32 nm_setting_wired_get_num_s390_options (NMSettingWired *setting);
gboolean nm_setting_wired_get_s390_option (NMSettingWired *setting,
guint32 idx,
const char **out_key,
const char **out_value);
const char * nm_setting_wired_get_s390_option_by_key (NMSettingWired *setting,
const char *key);
gboolean nm_setting_wired_add_s390_option (NMSettingWired *setting,
const char *key,
const char *value);
gboolean nm_setting_wired_remove_s390_option (NMSettingWired *setting,
const char *key);
const char ** nm_setting_wired_get_valid_s390_options (NMSettingWired *setting);
NMSettingWiredWakeOnLan nm_setting_wired_get_wake_on_lan (NMSettingWired *setting);
const char * nm_setting_wired_get_wake_on_lan_password (NMSettingWired *setting);
G_END_DECLS
#endif /* __NM_SETTING_WIRED_H__ */
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