1 /* $NetBSD: ieee80211_netbsd.h,v 1.10.18.1 2009/06/05 16:23:34 snj Exp $ */
2 /*-
3 * Copyright (c) 2003-2005 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/net80211/ieee80211_freebsd.h,v 1.6 2005/08/08 18:46:36 sam Exp $
29 */
30 #ifndef _NET80211_IEEE80211_NETBSD_H_
31 #define _NET80211_IEEE80211_NETBSD_H_
32
33 #define IASSERT(__cond, __complaint) \
34 do { \
35 if (!(__cond)) \
36 panic __complaint ; \
37 } while (0)
38
39 void if_printf(struct ifnet *, const char *, ...)
40 __attribute__((__format__(__printf__,2,3)));
41
42 struct ieee80211_lock {
43 int count;
44 int ipl;
45 };
46 #define IEEE80211_LOCK_INIT_IMPL(_ic, _name, _member) \
47 do { \
48 (_ic)->_member.count = 0; \
49 } while (0)
50 #define IEEE80211_LOCK_IMPL(_ic, _member) \
51 do { \
52 int __s = splnet(); \
53 if ((_ic)->_member.count++ == 0) \
54 (_ic)->_member.ipl = __s; \
55 } while (0)
56 #define IEEE80211_IS_LOCKED_IMPL(_ic, _member) \
57 ((_ic)->_member.count != 0)
58 #define IEEE80211_UNLOCK_IMPL(_ic, _member) \
59 do { \
60 if (--(_ic)->_member.count == 0) \
61 splx((_ic)->_member.ipl); \
62 } while (0)
63 #define IEEE80211_LOCK_ASSERT_IMPL(_ic, _member) \
64 IASSERT((_ic)->_member.count > 0, \
65 ("%s: IEEE80211_LOCK not held", __func__));
66
67 /*
68 * Beacon locking definitions.
69 */
70 typedef struct ieee80211_lock ieee80211_beacon_lock_t;
71 #define IEEE80211_BEACON_LOCK_INIT(_ic, _name) \
72 IEEE80211_LOCK_INIT_IMPL(_ic, _name, ic_beaconlock)
73 #define IEEE80211_BEACON_LOCK_DESTROY(_ic)
74 #define IEEE80211_BEACON_LOCK(_ic) \
75 IEEE80211_LOCK_IMPL(_ic, ic_beaconlock)
76 #define IEEE80211_BEACON_UNLOCK(_ic) \
77 IEEE80211_UNLOCK_IMPL(_ic, ic_beaconlock)
78 #define IEEE80211_BEACON_LOCK_ASSERT(_ic) \
79 IEEE80211_LOCK_ASSERT_IMPL(_ic, ic_beaconlock)
80
81 /*
82 * Node locking definitions.
83 * NB: MTX_DUPOK is because we don't generate per-interface strings.
84 */
85 typedef struct ieee80211_lock ieee80211_node_lock_t;
86 #define IEEE80211_NODE_LOCK_INIT(_nt, _name) \
87 IEEE80211_LOCK_INIT_IMPL(_nt, _name, nt_nodelock)
88 #define IEEE80211_NODE_LOCK_DESTROY(_nt)
89 #define IEEE80211_NODE_LOCK(_nt) \
90 IEEE80211_LOCK_IMPL(_nt, nt_nodelock)
91 #define IEEE80211_NODE_IS_LOCKED(_nt) \
92 IEEE80211_IS_LOCKED_IMPL(_nt, nt_nodelock)
93 #define IEEE80211_NODE_UNLOCK(_nt) \
94 IEEE80211_UNLOCK_IMPL(_nt, nt_nodelock)
95 #define IEEE80211_NODE_LOCK_ASSERT(_nt) \
96 IEEE80211_LOCK_ASSERT_IMPL(_nt, nt_nodelock)
97
98 /*
99 * Node table scangen locking definitions.
100 */
101 typedef struct ieee80211_lock ieee80211_scan_lock_t;
102 #define IEEE80211_SCAN_LOCK_INIT(_nt, _name) \
103 IEEE80211_LOCK_INIT_IMPL(_nt, _name, nt_scanlock)
104 #define IEEE80211_SCAN_LOCK_DESTROY(_nt)
105 #define IEEE80211_SCAN_LOCK(_nt) \
106 IEEE80211_LOCK_IMPL(_nt, nt_scanlock)
107 #define IEEE80211_SCAN_UNLOCK(_nt) \
108 IEEE80211_UNLOCK_IMPL(_nt, nt_scanlock)
109 #define IEEE80211_SCAN_LOCK_ASSERT(_nt) \
110 IEEE80211_LOCK_ASSERT_IMPL(_nt, nt_scanlock)
111
112 /*
113 * Per-node power-save queue definitions.
114 */
115 #define IEEE80211_NODE_SAVEQ_INIT(_ni, _name) do { \
116 (_ni)->ni_savedq.ifq_maxlen = IEEE80211_PS_MAX_QUEUE; \
117 } while (0)
118 #define IEEE80211_NODE_SAVEQ_DESTROY(_ni)
119 #define IEEE80211_NODE_SAVEQ_QLEN(_ni) ((_ni)->ni_savedq.ifq_len)
120 #define IEEE80211_NODE_SAVEQ_LOCK(_ni)
121 #define IEEE80211_NODE_SAVEQ_UNLOCK(_ni)
122 #define IEEE80211_NODE_SAVEQ_DEQUEUE(_ni, _m, _qlen) do { \
123 IEEE80211_NODE_SAVEQ_LOCK(_ni); \
124 IF_DEQUEUE(&(_ni)->ni_savedq, _m); \
125 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \
126 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \
127 } while (0)
128 #define IEEE80211_NODE_SAVEQ_DRAIN(_ni, _qlen) do { \
129 IEEE80211_NODE_SAVEQ_LOCK(_ni); \
130 (_qlen) = IEEE80211_NODE_SAVEQ_QLEN(_ni); \
131 IF_PURGE(&(_ni)->ni_savedq); \
132 IEEE80211_NODE_SAVEQ_UNLOCK(_ni); \
133 } while (0)
134 /* XXX could be optimized */
135 #define _IEEE80211_NODE_SAVEQ_DEQUEUE_HEAD(_ni, _m) do { \
136 IF_DEQUEUE(&(_ni)->ni_savedq, m); \
137 } while (0)
138 #define _IEEE80211_NODE_SAVEQ_ENQUEUE(_ni, _m, _qlen, _age) do {\
139 (_m)->m_nextpkt = NULL; \
140 if ((_ni)->ni_savedq.ifq_tail != NULL) { \
141 _age -= M_AGE_GET((_ni)->ni_savedq.ifq_tail); \
142 (_ni)->ni_savedq.ifq_tail->m_nextpkt = (_m); \
143 } else { \
144 (_ni)->ni_savedq.ifq_head = (_m); \
145 } \
146 M_AGE_SET(_m, _age); \
147 (_ni)->ni_savedq.ifq_tail = (_m); \
148 (_qlen) = ++(_ni)->ni_savedq.ifq_len; \
149 } while (0)
150
151 /*
152 * 802.1x MAC ACL database locking definitions.
153 */
154 typedef struct ieee80211_lock acl_lock_t;
155 #define ACL_LOCK_INIT(_as, _name) \
156 IEEE80211_LOCK_INIT_IMPL(_as, _name, as_lock)
157 #define ACL_LOCK_DESTROY(_as)
158 #define ACL_LOCK(_as) IEEE80211_LOCK_IMPL(_as, as_lock)
159 #define ACL_UNLOCK(_as) IEEE80211_UNLOCK_IMPL(_as, as_lock)
160 #define ACL_LOCK_ASSERT(_as) IEEE80211_LOCK_ASSERT_IMPL(_as, as_lock)
161
162 /*
163 * Node reference counting definitions.
164 *
165 * ieee80211_node_initref initialize the reference count to 1
166 * ieee80211_node_incref add a reference
167 * ieee80211_node_decref remove a reference
168 * ieee80211_node_dectestref remove a reference and return 1 if this
169 * is the last reference, otherwise 0
170 * ieee80211_node_refcnt reference count for printing (only)
171 */
172
173 #define ieee80211_node_initref(_ni) \
174 do { ((_ni)->ni_refcnt = 1); } while (0)
175 #define ieee80211_node_incref(_ni) \
176 do { (_ni)->ni_refcnt++; } while (0)
177 #define ieee80211_node_decref(_ni) \
178 do { (_ni)->ni_refcnt--; } while (0)
179 struct ieee80211_node;
180 int ieee80211_node_dectestref(struct ieee80211_node *ni);
181 #define ieee80211_node_refcnt(_ni) (_ni)->ni_refcnt
182
183 struct mbuf *ieee80211_getmgtframe(u_int8_t **frm, u_int pktlen);
184 #define M_PWR_SAV M_PROTO1 /* bypass PS handling */
185 #define M_MORE_DATA M_LINK3 /* more data frames to follow */
186 #define M_FRAG M_LINK4 /* 802.11 fragment */
187 #define M_FIRSTFRAG M_LINK5 /* first 802.11 fragment */
188 #define M_FF M_LINK6 /* "fast frames" */
189 /*
190 * Encode WME access control bits in the PROTO flags.
191 * This is safe since it's passed directly in to the
192 * driver and there's no chance someone else will clobber
193 * them on us.
194 */
195 #define M_WME_AC_MASK (M_LINK1|M_LINK2)
196 /* XXX 5 is wrong if M_LINK* are redefined */
197 #define M_WME_AC_SHIFT 13
198
199 #define M_WME_SETAC(m, ac) \
200 ((m)->m_flags = ((m)->m_flags &~ M_WME_AC_MASK) | \
201 ((ac) << M_WME_AC_SHIFT))
202 #define M_WME_GETAC(m) (((m)->m_flags >> M_WME_AC_SHIFT) & 0x3)
203
204 /*
205 * Mbufs on the power save queue are tagged with an age and
206 * timed out. We reuse the hardware checksum field in the
207 * mbuf packet header to store this data.
208 */
209 #define M_AGE_SET(m,v) (m->m_pkthdr.csum_data = v)
210 #define M_AGE_GET(m) (m->m_pkthdr.csum_data)
211 #define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj)
212
213 struct ieee80211com;
214
215 /* XXX this stuff belongs elsewhere */
216 /*
217 * Message formats for messages from the net80211 layer to user
218 * applications via the routing socket. These messages are appended
219 * to an if_announcemsghdr structure.
220 */
221 struct ieee80211_join_event {
222 uint8_t iev_addr[6];
223 };
224
225 struct ieee80211_leave_event {
226 uint8_t iev_addr[6];
227 };
228
229 struct ieee80211_replay_event {
230 uint8_t iev_src[6]; /* src MAC */
231 uint8_t iev_dst[6]; /* dst MAC */
232 uint8_t iev_cipher; /* cipher type */
233 uint8_t iev_keyix; /* key id/index */
234 uint64_t iev_keyrsc; /* RSC from key */
235 uint64_t iev_rsc; /* RSC from frame */
236 };
237
238 struct ieee80211_michael_event {
239 uint8_t iev_src[6]; /* src MAC */
240 uint8_t iev_dst[6]; /* dst MAC */
241 uint8_t iev_cipher; /* cipher type */
242 uint8_t iev_keyix; /* key id/index */
243 };
244
245 #define RTM_IEEE80211_ASSOC 100 /* station associate (bss mode) */
246 #define RTM_IEEE80211_REASSOC 101 /* station re-associate (bss mode) */
247 #define RTM_IEEE80211_DISASSOC 102 /* station disassociate (bss mode) */
248 #define RTM_IEEE80211_JOIN 103 /* station join (ap mode) */
249 #define RTM_IEEE80211_LEAVE 104 /* station leave (ap mode) */
250 #define RTM_IEEE80211_SCAN 105 /* scan complete, results available */
251 #define RTM_IEEE80211_REPLAY 106 /* sequence counter replay detected */
252 #define RTM_IEEE80211_MICHAEL 107 /* Michael MIC failure detected */
253 #define RTM_IEEE80211_REJOIN 108 /* station re-associate (ap mode) */
254
255 #define __offsetof offsetof
256 #define ticks hardclock_ticks
257 #define ovbcopy(__src, __dst, __n) ((void)memmove(__dst, __src, __n))
258
259 void if_printf(struct ifnet *, const char *, ...);
260 void m_align(struct mbuf *, int);
261 int m_append(struct mbuf *, int, const caddr_t);
262 void get_random_bytes(void *, size_t);
263
264 void ieee80211_sysctl_attach(struct ieee80211com *);
265 void ieee80211_sysctl_detach(struct ieee80211com *);
266 void ieee80211_load_module(const char *);
267
268 void ieee80211_init(void);
269 #define IEEE80211_CRYPTO_SETUP(name) \
270 static void name(void); \
271 __link_set_add_text(ieee80211_funcs, name); \
272 static void name(void)
273
274 #endif /* !_NET80211_IEEE80211_NETBSD_H_ */
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