LXR linux/include/net/ieee802154

   1/*
   2 * An interface between IEEE802.15.4 device and rest of the kernel.
   3 *
   4 * Copyright (C) 2007, 2008, 2009 Siemens AG
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2
   8 * as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License along
  16 * with this program; if not, write to the Free Software Foundation, Inc.,
  17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 *
  19 * Written by:
  20 * Pavel Smolenskiy <pavel.smolenskiy@gmail.com>
  21 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
  22 * Maxim Osipov <maxim.osipov@siemens.com>
  23 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
  24 */
  25
  26#ifndef IEEE802154_NETDEVICE_H
  27#define IEEE802154_NETDEVICE_H
  28
  29/*
  30 * A control block of skb passed between the ARPHRD_IEEE802154 device
  31 * and other stack parts.
  32 */
  33struct ieee802154_mac_cb {
  34        u8 lqi;
  35        struct ieee802154_addr sa;
  36        struct ieee802154_addr da;
  37        u8 flags;
  38        u8 seq;
  39};
  40
  41static inline struct ieee802154_mac_cb *mac_cb(struct sk_buff *skb)
  42{
  43        return (struct ieee802154_mac_cb *)skb->cb;
  44}
  45
  46#define MAC_CB_FLAG_TYPEMASK            ((1 << 3) - 1)
  47
  48#define MAC_CB_FLAG_ACKREQ              (1 << 3)
  49#define MAC_CB_FLAG_SECEN               (1 << 4)
  50#define MAC_CB_FLAG_INTRAPAN            (1 << 5)
  51
  52static inline int mac_cb_is_ackreq(struct sk_buff *skb)
  53{
  54        return mac_cb(skb)->flags & MAC_CB_FLAG_ACKREQ;
  55}
  56
  57static inline int mac_cb_is_secen(struct sk_buff *skb)
  58{
  59        return mac_cb(skb)->flags & MAC_CB_FLAG_SECEN;
  60}
  61
  62static inline int mac_cb_is_intrapan(struct sk_buff *skb)
  63{
  64        return mac_cb(skb)->flags & MAC_CB_FLAG_INTRAPAN;
  65}
  66
  67static inline int mac_cb_type(struct sk_buff *skb)
  68{
  69        return mac_cb(skb)->flags & MAC_CB_FLAG_TYPEMASK;
  70}
  71
  72#define IEEE802154_MAC_SCAN_ED          0
  73#define IEEE802154_MAC_SCAN_ACTIVE      1
  74#define IEEE802154_MAC_SCAN_PASSIVE     2
  75#define IEEE802154_MAC_SCAN_ORPHAN      3
  76
  77/*
  78 * This should be located at net_device->ml_priv
  79 */
  80struct ieee802154_mlme_ops {
  81        int (*assoc_req)(struct net_device *dev,
  82                        struct ieee802154_addr *addr,
  83                        u8 channel, u8 page, u8 cap);
  84        int (*assoc_resp)(struct net_device *dev,
  85                        struct ieee802154_addr *addr,
  86                        u16 short_addr, u8 status);
  87        int (*disassoc_req)(struct net_device *dev,
  88                        struct ieee802154_addr *addr,
  89                        u8 reason);
  90        int (*start_req)(struct net_device *dev,
  91                        struct ieee802154_addr *addr,
  92                        u8 channel, u8 page, u8 bcn_ord, u8 sf_ord,
  93                        u8 pan_coord, u8 blx, u8 coord_realign);
  94        int (*scan_req)(struct net_device *dev,
  95                        u8 type, u32 channels, u8 page, u8 duration);
  96
  97        /*
  98         * FIXME: these should become the part of PIB/MIB interface.
  99         * However we still don't have IB interface of any kind
 100         */
 101        u16 (*get_pan_id)(struct net_device *dev);
 102        u16 (*get_short_addr)(struct net_device *dev);
 103        u8 (*get_dsn)(struct net_device *dev);
 104        u8 (*get_bsn)(struct net_device *dev);
 105};
 106
 107static inline struct ieee802154_mlme_ops *ieee802154_mlme_ops(
 108                struct net_device *dev)
 109{
 110        return dev->ml_priv;
 111}
 112
 113#endif
 114
 115
 116