sys/netproto/802_11/ieee80211_dragonfly.h

   1 /*
   2  * Copyright (c) 2003-2005 Sam Leffler, Errno Consulting
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  * $FreeBSD: src/sys/net80211/ieee80211_freebsd.h,v 1.5.2.1 2005/09/03 22:40:02 sam Exp $
  28  * $DragonFly: src/sys/netproto/802_11/ieee80211_dragonfly.h,v 1.4 2007/08/22 13:24:44 sephe Exp $
  29  */
  30 #ifndef _NET80211_IEEE80211_DRAGONFLY_H_
  31 #define _NET80211_IEEE80211_DRAGONFLY_H_
  32
  33 /*
  34  * Per-node power-save queue definitions.
  35  */
  36 #define IEEE80211_NODE_SAVEQ_INIT(_ni, _name) do {              \
  37         (_ni)->ni_savedq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE;   \
  38 } while (0)
  39 #define IEEE80211_NODE_SAVEQ_DESTROY(_ni)       ((void)0)
  40 #define IEEE80211_NODE_SAVEQ_QLEN(_ni)          IF_QLEN(&(_ni)->ni_savedq)
  41 #define IEEE80211_NODE_SAVEQ_DEQUEUE(_ni, _m, _qlen) do {       \
  42         IF_DEQUEUE(&(_ni)->ni_savedq, _m);                      \
  43         (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni);               \
  44 } while (0)
  45 #define IEEE80211_NODE_SAVEQ_DRAIN(_ni, _qlen) do {             \
  46         (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni);               \
  47         IF_DRAIN(&(_ni)->ni_savedq);                            \
  48 } while (0)
  49 /* XXX could be optimized */
  50 #define _IEEE80211_NODE_SAVEQ_DEQUEUE_HEAD(_ni, _m) do {        \
  51         IF_DEQUEUE(&(_ni)->ni_savedq, m);                       \
  52 } while (0)
  53 #define _IEEE80211_NODE_SAVEQ_ENQUEUE(_ni, _m, _qlen, _age) do {\
  54         (_m)->m_nextpkt = NULL;                                 \
  55         if ((_ni)->ni_savedq.ifq_tail != NULL) {                \
  56                 _age -= M_AGE_GET((_ni)->ni_savedq.ifq_tail);   \
  57                 (_ni)->ni_savedq.ifq_tail->m_nextpkt = (_m);    \
  58         } else {                                                \
  59                 (_ni)->ni_savedq.ifq_head = (_m);               \
  60         }                                                       \
  61         M_AGE_SET(_m, _age);                                    \
  62         (_ni)->ni_savedq.ifq_tail = (_m);                       \
  63         (_qlen) = ++(_ni)->ni_savedq.ifq_len;                   \
  64 } while (0)
  65
  66 /*
  67  * Node reference counting definitions.
  68  *
  69  * ieee80211_node_initref       initialize the reference count to 1
  70  * ieee80211_node_incref        add a reference
  71  * ieee80211_node_decref        remove a reference
  72  * ieee80211_node_dectestref    remove a reference and return 1 if this
  73  *                              is the last reference, otherwise 0
  74  * ieee80211_node_refcnt        reference count for printing (only)
  75  */
  76 #include <machine/atomic.h>
  77
  78 #define ieee80211_node_initref(_ni) \
  79         do { ((_ni)->ni_refcnt = 1); } while (0)
  80 #define ieee80211_node_incref(_ni) \
  81         atomic_add_int(&(_ni)->ni_refcnt, 1)
  82 #define ieee80211_node_decref(_ni) \
  83         atomic_subtract_int(&(_ni)->ni_refcnt, 1)
  84 struct ieee80211_node;
  85 int     ieee80211_node_dectestref(struct ieee80211_node *ni);
  86 #define ieee80211_node_refcnt(_ni)      (_ni)->ni_refcnt
  87
  88 struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, u_int pktlen);
  89 /* M_PROTO1 unused */
  90 #define M_PWR_SAV       M_PROTO4                /* bypass PS handling */
  91 #define M_MORE_DATA     M_PROTO5                /* more data frames to follow */
  92 /*
  93  * Encode WME access control bits in the PROTO flags.
  94  * This is safe since it's passed directly in to the
  95  * driver and there's no chance someone else will clobber
  96  * them on us.
  97  */
  98 #define M_WME_AC_MASK   (M_PROTO2|M_PROTO3)
  99 /* XXX 5 is wrong if M_PROTO* are redefined */
 100 #define M_WME_AC_SHIFT  5
 101
 102 #define M_WME_SETAC(m, ac) \
 103         ((m)->m_flags = ((m)->m_flags &~ M_WME_AC_MASK) | \
 104                 ((ac) << M_WME_AC_SHIFT))
 105 #define M_WME_GETAC(m)  (((m)->m_flags >> M_WME_AC_SHIFT) & 0x3)
 106
 107 /*
 108  * Mbufs on the power save queue are tagged with an age and
 109  * timed out.  We reuse the hardware checksum field in the
 110  * mbuf packet header to store this data.
 111  */
 112 #define M_AGE_SET(m,v)          (m->m_pkthdr.csum_data = v)
 113 #define M_AGE_GET(m)            (m->m_pkthdr.csum_data)
 114 #define M_AGE_SUB(m,adj)        (m->m_pkthdr.csum_data -= adj)
 115
 116 void    get_random_bytes(void *, size_t);
 117
 118 struct ieee80211com;
 119
 120 void    ieee80211_sysctl_attach(struct ieee80211com *);
 121 void    ieee80211_sysctl_detach(struct ieee80211com *);
 122
 123 void    ieee80211_load_module(const char *);
 124 int     ieee80211_mbuf_append(struct mbuf *, int, const uint8_t *);
 125 struct mbuf *ieee80211_mbuf_clone(struct mbuf *, int);
 126 void    ieee80211_drain_mgtq(struct ifqueue *);
 127
 128 /* XXX this stuff belongs elsewhere */
 129 /*
 130  * Message formats for messages from the net80211 layer to user
 131  * applications via the routing socket.  These messages are appended
 132  * to an if_announcemsghdr structure.
 133  */
 134 struct ieee80211_join_event {
 135         uint8_t         iev_addr[6];
 136 };
 137
 138 struct ieee80211_leave_event {
 139         uint8_t         iev_addr[6];
 140 };
 141
 142 struct ieee80211_replay_event {
 143         uint8_t         iev_src[6];     /* src MAC */
 144         uint8_t         iev_dst[6];     /* dst MAC */
 145         uint8_t         iev_cipher;     /* cipher type */
 146         uint8_t         iev_keyix;      /* key id/index */
 147         uint64_t        iev_keyrsc;     /* RSC from key */
 148         uint64_t        iev_rsc;        /* RSC from frame */
 149 };
 150
 151 struct ieee80211_michael_event {
 152         uint8_t         iev_src[6];     /* src MAC */
 153         uint8_t         iev_dst[6];     /* dst MAC */
 154         uint8_t         iev_cipher;     /* cipher type */
 155         uint8_t         iev_keyix;      /* key id/index */
 156 };
 157
 158 #define RTM_IEEE80211_ASSOC     100     /* station associate (bss mode) */
 159 #define RTM_IEEE80211_REASSOC   101     /* station re-associate (bss mode) */
 160 #define RTM_IEEE80211_DISASSOC  102     /* station disassociate (bss mode) */
 161 #define RTM_IEEE80211_JOIN      103     /* station join (ap mode) */
 162 #define RTM_IEEE80211_LEAVE     104     /* station leave (ap mode) */
 163 #define RTM_IEEE80211_SCAN      105     /* scan complete, results available */
 164 #define RTM_IEEE80211_REPLAY    106     /* sequence counter replay detected */
 165 #define RTM_IEEE80211_MICHAEL   107     /* Michael MIC failure detected */
 166 #define RTM_IEEE80211_REJOIN    108     /* station re-associate (ap mode) */
 167
 168 #endif /* _NET80211_IEEE80211_DRAGONFLY_H_ */