include/net/ieee802154/netdevice.h

   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  */
  33 struct ieee802154_mac_cb {
  34         u8 lqi;
  35         struct ieee802154_addr sa;
  36         struct ieee802154_addr da;
  37         u8 flags;
  38         u8 seq;
  39 };
  40
  41 static 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
  52 static inline int mac_cb_is_ackreq(struct sk_buff *skb)
  53 {
  54         return mac_cb(skb)->flags & MAC_CB_FLAG_ACKREQ;
  55 }
  56
  57 static inline int mac_cb_is_secen(struct sk_buff *skb)
  58 {
  59         return mac_cb(skb)->flags & MAC_CB_FLAG_SECEN;
  60 }
  61
  62 static inline int mac_cb_is_intrapan(struct sk_buff *skb)
  63 {
  64         return mac_cb(skb)->flags & MAC_CB_FLAG_INTRAPAN;
  65 }
  66
  67 static 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  */
  80 struct ieee802154_mlme_ops {
  81         int (*assoc_req)(struct net_device *dev,
  82                         struct ieee802154_addr *addr,
  83                         u8 channel, 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 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 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
 107 static 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