1/*-
2 * Copyright (c) 2003-2008 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2003-2008 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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
|
27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_freebsd.c 184205 2008-10-23 15:53:51Z des $");
| 27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_freebsd.c 184210 2008-10-23 19:57:13Z des $");
|
28
29/*
30 * IEEE 802.11 support (FreeBSD-specific code)
31 */
32#include "opt_wlan.h"
33
34#include <sys/param.h>
35#include <sys/kernel.h>
36#include <sys/systm.h>
37#include <sys/linker.h>
38#include <sys/mbuf.h>
39#include <sys/module.h>
40#include <sys/proc.h>
41#include <sys/sysctl.h>
42
43#include <sys/socket.h>
44
45#include <net/if.h>
46#include <net/if_clone.h>
47#include <net/if_media.h>
48#include <net/if_types.h>
49#include <net/ethernet.h>
50#include <net/route.h>
51
52#include <net80211/ieee80211_var.h>
53
54SYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters");
55
56#ifdef IEEE80211_DEBUG
57int ieee80211_debug = 0;
58SYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug,
59 0, "debugging printfs");
60#endif
61extern int ieee80211_recv_bar_ena;
62SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena,
63 0, "BAR frame processing (ena/dis)");
64extern int ieee80211_nol_timeout;
65SYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW,
66 &ieee80211_nol_timeout, 0, "NOL timeout (secs)");
67extern int ieee80211_cac_timeout;
68SYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW,
69 &ieee80211_cac_timeout, 0, "CAC timeout (secs)");
70
71MALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state");
72
73/*
74 * Allocate/free com structure in conjunction with ifnet;
75 * these routines are registered with if_register_com_alloc
76 * below and are called automatically by the ifnet code
77 * when the ifnet of the parent device is created.
78 */
79static void *
80wlan_alloc(u_char type, struct ifnet *ifp)
81{
82 struct ieee80211com *ic;
83
84 ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO);
85 ic->ic_ifp = ifp;
86
87 return (ic);
88}
89
90static void
91wlan_free(void *ic, u_char type)
92{
93 free(ic, M_80211_COM);
94}
95
96static int
97wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params)
98{
99 struct ieee80211_clone_params cp;
100 struct ieee80211vap *vap;
101 struct ieee80211com *ic;
102 struct ifnet *ifp;
103 int error;
104
105 error = copyin(params, &cp, sizeof(cp));
106 if (error)
107 return error;
108 ifp = ifunit(cp.icp_parent);
109 if (ifp == NULL)
110 return ENXIO;
111 /* XXX move printfs to DIAGNOSTIC before release */
112 if (ifp->if_type != IFT_IEEE80211) {
113 if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__);
114 return ENXIO;
115 }
116 if (cp.icp_opmode >= IEEE80211_OPMODE_MAX) {
117 if_printf(ifp, "%s: invalid opmode %d\n",
118 __func__, cp.icp_opmode);
119 return EINVAL;
120 }
121 ic = ifp->if_l2com;
122 if ((ic->ic_caps & ieee80211_opcap[cp.icp_opmode]) == 0) {
123 if_printf(ifp, "%s mode not supported\n",
124 ieee80211_opmode_name[cp.icp_opmode]);
125 return EOPNOTSUPP;
126 }
127 vap = ic->ic_vap_create(ic, ifc->ifc_name, unit,
128 cp.icp_opmode, cp.icp_flags, cp.icp_bssid,
129 cp.icp_flags & IEEE80211_CLONE_MACADDR ?
130 cp.icp_macaddr : ic->ic_myaddr);
131 return (vap == NULL ? EIO : 0);
132}
133
134static void
135wlan_clone_destroy(struct ifnet *ifp)
136{
137 struct ieee80211vap *vap = ifp->if_softc;
138 struct ieee80211com *ic = vap->iv_ic;
139
140 ic->ic_vap_delete(vap);
141}
142IFC_SIMPLE_DECLARE(wlan, 0);
143
144void
145ieee80211_vap_destroy(struct ieee80211vap *vap)
146{
147 if_clone_destroyif(&wlan_cloner, vap->iv_ifp);
148}
149
150static int
151ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS)
152{
153 int msecs = ticks_to_msecs(*(int *)arg1);
154 int error, t;
155
156 error = sysctl_handle_int(oidp, &msecs, 0, req);
157 if (error || !req->newptr)
158 return error;
159 t = msecs_to_ticks(msecs);
160 *(int *)arg1 = (t < 1) ? 1 : t;
161 return 0;
162}
163
164#ifdef IEEE80211_AMPDU_AGE
165extern int ieee80211_ampdu_age;
166SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW,
167 &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I",
168 "AMPDU max reorder age (ms)");
169#endif
170extern int ieee80211_addba_timeout;
171SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW,
172 &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I",
173 "ADDBA request timeout (ms)");
174extern int ieee80211_addba_backoff;
175SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW,
176 &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I",
177 "ADDBA request backoff (ms)");
178extern int ieee80211_addba_maxtries;
179SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW,
180 &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff");
181
182static int
183ieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS)
184{
185 int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT;
186 int error;
187
188 error = sysctl_handle_int(oidp, &inact, 0, req);
189 if (error || !req->newptr)
190 return error;
191 *(int *)arg1 = inact / IEEE80211_INACT_WAIT;
192 return 0;
193}
194
195static int
196ieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS)
197{
198 struct ieee80211com *ic = arg1;
199 const char *name = ic->ic_ifp->if_xname;
200
201 return SYSCTL_OUT(req, name, strlen(name));
202}
203
204static int
205ieee80211_sysctl_radar(SYSCTL_HANDLER_ARGS)
206{
207 struct ieee80211com *ic = arg1;
208 int t = 0, error;
209
210 error = sysctl_handle_int(oidp, &t, 0, req);
211 if (error || !req->newptr)
212 return error;
213 IEEE80211_LOCK(ic);
214 ieee80211_dfs_notify_radar(ic, ic->ic_curchan);
215 IEEE80211_UNLOCK(ic);
216 return 0;
217}
218
219void
220ieee80211_sysctl_attach(struct ieee80211com *ic)
221{
222}
223
224void
225ieee80211_sysctl_detach(struct ieee80211com *ic)
226{
227}
228
229void
230ieee80211_sysctl_vattach(struct ieee80211vap *vap)
231{
232 struct ifnet *ifp = vap->iv_ifp;
233 struct sysctl_ctx_list *ctx;
234 struct sysctl_oid *oid;
235 char num[14]; /* sufficient for 32 bits */
236
| 28
29/*
30 * IEEE 802.11 support (FreeBSD-specific code)
31 */
32#include "opt_wlan.h"
33
34#include <sys/param.h>
35#include <sys/kernel.h>
36#include <sys/systm.h>
37#include <sys/linker.h>
38#include <sys/mbuf.h>
39#include <sys/module.h>
40#include <sys/proc.h>
41#include <sys/sysctl.h>
42
43#include <sys/socket.h>
44
45#include <net/if.h>
46#include <net/if_clone.h>
47#include <net/if_media.h>
48#include <net/if_types.h>
49#include <net/ethernet.h>
50#include <net/route.h>
51
52#include <net80211/ieee80211_var.h>
53
54SYSCTL_NODE(_net, OID_AUTO, wlan, CTLFLAG_RD, 0, "IEEE 80211 parameters");
55
56#ifdef IEEE80211_DEBUG
57int ieee80211_debug = 0;
58SYSCTL_INT(_net_wlan, OID_AUTO, debug, CTLFLAG_RW, &ieee80211_debug,
59 0, "debugging printfs");
60#endif
61extern int ieee80211_recv_bar_ena;
62SYSCTL_INT(_net_wlan, OID_AUTO, recv_bar, CTLFLAG_RW, &ieee80211_recv_bar_ena,
63 0, "BAR frame processing (ena/dis)");
64extern int ieee80211_nol_timeout;
65SYSCTL_INT(_net_wlan, OID_AUTO, nol_timeout, CTLFLAG_RW,
66 &ieee80211_nol_timeout, 0, "NOL timeout (secs)");
67extern int ieee80211_cac_timeout;
68SYSCTL_INT(_net_wlan, OID_AUTO, cac_timeout, CTLFLAG_RW,
69 &ieee80211_cac_timeout, 0, "CAC timeout (secs)");
70
71MALLOC_DEFINE(M_80211_COM, "80211com", "802.11 com state");
72
73/*
74 * Allocate/free com structure in conjunction with ifnet;
75 * these routines are registered with if_register_com_alloc
76 * below and are called automatically by the ifnet code
77 * when the ifnet of the parent device is created.
78 */
79static void *
80wlan_alloc(u_char type, struct ifnet *ifp)
81{
82 struct ieee80211com *ic;
83
84 ic = malloc(sizeof(struct ieee80211com), M_80211_COM, M_WAITOK|M_ZERO);
85 ic->ic_ifp = ifp;
86
87 return (ic);
88}
89
90static void
91wlan_free(void *ic, u_char type)
92{
93 free(ic, M_80211_COM);
94}
95
96static int
97wlan_clone_create(struct if_clone *ifc, int unit, caddr_t params)
98{
99 struct ieee80211_clone_params cp;
100 struct ieee80211vap *vap;
101 struct ieee80211com *ic;
102 struct ifnet *ifp;
103 int error;
104
105 error = copyin(params, &cp, sizeof(cp));
106 if (error)
107 return error;
108 ifp = ifunit(cp.icp_parent);
109 if (ifp == NULL)
110 return ENXIO;
111 /* XXX move printfs to DIAGNOSTIC before release */
112 if (ifp->if_type != IFT_IEEE80211) {
113 if_printf(ifp, "%s: reject, not an 802.11 device\n", __func__);
114 return ENXIO;
115 }
116 if (cp.icp_opmode >= IEEE80211_OPMODE_MAX) {
117 if_printf(ifp, "%s: invalid opmode %d\n",
118 __func__, cp.icp_opmode);
119 return EINVAL;
120 }
121 ic = ifp->if_l2com;
122 if ((ic->ic_caps & ieee80211_opcap[cp.icp_opmode]) == 0) {
123 if_printf(ifp, "%s mode not supported\n",
124 ieee80211_opmode_name[cp.icp_opmode]);
125 return EOPNOTSUPP;
126 }
127 vap = ic->ic_vap_create(ic, ifc->ifc_name, unit,
128 cp.icp_opmode, cp.icp_flags, cp.icp_bssid,
129 cp.icp_flags & IEEE80211_CLONE_MACADDR ?
130 cp.icp_macaddr : ic->ic_myaddr);
131 return (vap == NULL ? EIO : 0);
132}
133
134static void
135wlan_clone_destroy(struct ifnet *ifp)
136{
137 struct ieee80211vap *vap = ifp->if_softc;
138 struct ieee80211com *ic = vap->iv_ic;
139
140 ic->ic_vap_delete(vap);
141}
142IFC_SIMPLE_DECLARE(wlan, 0);
143
144void
145ieee80211_vap_destroy(struct ieee80211vap *vap)
146{
147 if_clone_destroyif(&wlan_cloner, vap->iv_ifp);
148}
149
150static int
151ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS)
152{
153 int msecs = ticks_to_msecs(*(int *)arg1);
154 int error, t;
155
156 error = sysctl_handle_int(oidp, &msecs, 0, req);
157 if (error || !req->newptr)
158 return error;
159 t = msecs_to_ticks(msecs);
160 *(int *)arg1 = (t < 1) ? 1 : t;
161 return 0;
162}
163
164#ifdef IEEE80211_AMPDU_AGE
165extern int ieee80211_ampdu_age;
166SYSCTL_PROC(_net_wlan, OID_AUTO, ampdu_age, CTLFLAG_RW,
167 &ieee80211_ampdu_age, 0, ieee80211_sysctl_msecs_ticks, "I",
168 "AMPDU max reorder age (ms)");
169#endif
170extern int ieee80211_addba_timeout;
171SYSCTL_PROC(_net_wlan, OID_AUTO, addba_timeout, CTLFLAG_RW,
172 &ieee80211_addba_timeout, 0, ieee80211_sysctl_msecs_ticks, "I",
173 "ADDBA request timeout (ms)");
174extern int ieee80211_addba_backoff;
175SYSCTL_PROC(_net_wlan, OID_AUTO, addba_backoff, CTLFLAG_RW,
176 &ieee80211_addba_backoff, 0, ieee80211_sysctl_msecs_ticks, "I",
177 "ADDBA request backoff (ms)");
178extern int ieee80211_addba_maxtries;
179SYSCTL_INT(_net_wlan, OID_AUTO, addba_maxtries, CTLFLAG_RW,
180 &ieee80211_addba_maxtries, 0, "max ADDBA requests sent before backoff");
181
182static int
183ieee80211_sysctl_inact(SYSCTL_HANDLER_ARGS)
184{
185 int inact = (*(int *)arg1) * IEEE80211_INACT_WAIT;
186 int error;
187
188 error = sysctl_handle_int(oidp, &inact, 0, req);
189 if (error || !req->newptr)
190 return error;
191 *(int *)arg1 = inact / IEEE80211_INACT_WAIT;
192 return 0;
193}
194
195static int
196ieee80211_sysctl_parent(SYSCTL_HANDLER_ARGS)
197{
198 struct ieee80211com *ic = arg1;
199 const char *name = ic->ic_ifp->if_xname;
200
201 return SYSCTL_OUT(req, name, strlen(name));
202}
203
204static int
205ieee80211_sysctl_radar(SYSCTL_HANDLER_ARGS)
206{
207 struct ieee80211com *ic = arg1;
208 int t = 0, error;
209
210 error = sysctl_handle_int(oidp, &t, 0, req);
211 if (error || !req->newptr)
212 return error;
213 IEEE80211_LOCK(ic);
214 ieee80211_dfs_notify_radar(ic, ic->ic_curchan);
215 IEEE80211_UNLOCK(ic);
216 return 0;
217}
218
219void
220ieee80211_sysctl_attach(struct ieee80211com *ic)
221{
222}
223
224void
225ieee80211_sysctl_detach(struct ieee80211com *ic)
226{
227}
228
229void
230ieee80211_sysctl_vattach(struct ieee80211vap *vap)
231{
232 struct ifnet *ifp = vap->iv_ifp;
233 struct sysctl_ctx_list *ctx;
234 struct sysctl_oid *oid;
235 char num[14]; /* sufficient for 32 bits */
236
|
237 ctx = malloc(sizeof(struct sysctl_ctx_list),
| 237 MALLOC(ctx, struct sysctl_ctx_list *, sizeof(struct sysctl_ctx_list),
|
238 M_DEVBUF, M_NOWAIT | M_ZERO);
239 if (ctx == NULL) {
240 if_printf(ifp, "%s: cannot allocate sysctl context!\n",
241 __func__);
242 return;
243 }
244 sysctl_ctx_init(ctx);
245 snprintf(num, sizeof(num), "%u", ifp->if_dunit);
246 oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan),
247 OID_AUTO, num, CTLFLAG_RD, NULL, "");
248 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
249 "%parent", CTLFLAG_RD, vap->iv_ic, 0,
250 ieee80211_sysctl_parent, "A", "parent device");
251 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
252 "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0,
253 "driver capabilities");
254#ifdef IEEE80211_DEBUG
255 vap->iv_debug = ieee80211_debug;
256 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
257 "debug", CTLFLAG_RW, &vap->iv_debug, 0,
258 "control debugging printfs");
259#endif
260 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
261 "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0,
262 "consecutive beacon misses before scanning");
263 /* XXX inherit from tunables */
264 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
265 "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0,
266 ieee80211_sysctl_inact, "I",
267 "station inactivity timeout (sec)");
268 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
269 "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0,
270 ieee80211_sysctl_inact, "I",
271 "station inactivity probe timeout (sec)");
272 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
273 "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0,
274 ieee80211_sysctl_inact, "I",
275 "station authentication timeout (sec)");
276 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
277 "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0,
278 ieee80211_sysctl_inact, "I",
279 "station initial state timeout (sec)");
280 if (vap->iv_htcaps & IEEE80211_HTC_HT) {
281 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
282 "ampdu_mintraffic_bk", CTLFLAG_RW,
283 &vap->iv_ampdu_mintraffic[WME_AC_BK], 0,
284 "BK traffic tx aggr threshold (pps)");
285 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
286 "ampdu_mintraffic_be", CTLFLAG_RW,
287 &vap->iv_ampdu_mintraffic[WME_AC_BE], 0,
288 "BE traffic tx aggr threshold (pps)");
289 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
290 "ampdu_mintraffic_vo", CTLFLAG_RW,
291 &vap->iv_ampdu_mintraffic[WME_AC_VO], 0,
292 "VO traffic tx aggr threshold (pps)");
293 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
294 "ampdu_mintraffic_vi", CTLFLAG_RW,
295 &vap->iv_ampdu_mintraffic[WME_AC_VI], 0,
296 "VI traffic tx aggr threshold (pps)");
297 }
298 if (vap->iv_caps & IEEE80211_C_DFS) {
299 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
300 "radar", CTLTYPE_INT | CTLFLAG_RW, vap->iv_ic, 0,
301 ieee80211_sysctl_radar, "I", "simulare radar event");
302 }
303 vap->iv_sysctl = ctx;
304 vap->iv_oid = oid;
305}
306
307void
308ieee80211_sysctl_vdetach(struct ieee80211vap *vap)
309{
310
311 if (vap->iv_sysctl != NULL) {
312 sysctl_ctx_free(vap->iv_sysctl);
| 238 M_DEVBUF, M_NOWAIT | M_ZERO);
239 if (ctx == NULL) {
240 if_printf(ifp, "%s: cannot allocate sysctl context!\n",
241 __func__);
242 return;
243 }
244 sysctl_ctx_init(ctx);
245 snprintf(num, sizeof(num), "%u", ifp->if_dunit);
246 oid = SYSCTL_ADD_NODE(ctx, &SYSCTL_NODE_CHILDREN(_net, wlan),
247 OID_AUTO, num, CTLFLAG_RD, NULL, "");
248 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
249 "%parent", CTLFLAG_RD, vap->iv_ic, 0,
250 ieee80211_sysctl_parent, "A", "parent device");
251 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
252 "driver_caps", CTLFLAG_RW, &vap->iv_caps, 0,
253 "driver capabilities");
254#ifdef IEEE80211_DEBUG
255 vap->iv_debug = ieee80211_debug;
256 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
257 "debug", CTLFLAG_RW, &vap->iv_debug, 0,
258 "control debugging printfs");
259#endif
260 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
261 "bmiss_max", CTLFLAG_RW, &vap->iv_bmiss_max, 0,
262 "consecutive beacon misses before scanning");
263 /* XXX inherit from tunables */
264 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
265 "inact_run", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_run, 0,
266 ieee80211_sysctl_inact, "I",
267 "station inactivity timeout (sec)");
268 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
269 "inact_probe", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_probe, 0,
270 ieee80211_sysctl_inact, "I",
271 "station inactivity probe timeout (sec)");
272 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
273 "inact_auth", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_auth, 0,
274 ieee80211_sysctl_inact, "I",
275 "station authentication timeout (sec)");
276 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
277 "inact_init", CTLTYPE_INT | CTLFLAG_RW, &vap->iv_inact_init, 0,
278 ieee80211_sysctl_inact, "I",
279 "station initial state timeout (sec)");
280 if (vap->iv_htcaps & IEEE80211_HTC_HT) {
281 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
282 "ampdu_mintraffic_bk", CTLFLAG_RW,
283 &vap->iv_ampdu_mintraffic[WME_AC_BK], 0,
284 "BK traffic tx aggr threshold (pps)");
285 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
286 "ampdu_mintraffic_be", CTLFLAG_RW,
287 &vap->iv_ampdu_mintraffic[WME_AC_BE], 0,
288 "BE traffic tx aggr threshold (pps)");
289 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
290 "ampdu_mintraffic_vo", CTLFLAG_RW,
291 &vap->iv_ampdu_mintraffic[WME_AC_VO], 0,
292 "VO traffic tx aggr threshold (pps)");
293 SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
294 "ampdu_mintraffic_vi", CTLFLAG_RW,
295 &vap->iv_ampdu_mintraffic[WME_AC_VI], 0,
296 "VI traffic tx aggr threshold (pps)");
297 }
298 if (vap->iv_caps & IEEE80211_C_DFS) {
299 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
300 "radar", CTLTYPE_INT | CTLFLAG_RW, vap->iv_ic, 0,
301 ieee80211_sysctl_radar, "I", "simulare radar event");
302 }
303 vap->iv_sysctl = ctx;
304 vap->iv_oid = oid;
305}
306
307void
308ieee80211_sysctl_vdetach(struct ieee80211vap *vap)
309{
310
311 if (vap->iv_sysctl != NULL) {
312 sysctl_ctx_free(vap->iv_sysctl);
|
313 free(vap->iv_sysctl, M_DEVBUF);
| 313 FREE(vap->iv_sysctl, M_DEVBUF);
|
314 vap->iv_sysctl = NULL;
315 }
316}
317
318int
319ieee80211_node_dectestref(struct ieee80211_node *ni)
320{
321 /* XXX need equivalent of atomic_dec_and_test */
322 atomic_subtract_int(&ni->ni_refcnt, 1);
323 return atomic_cmpset_int(&ni->ni_refcnt, 0, 1);
324}
325
326void
327ieee80211_drain_ifq(struct ifqueue *ifq)
328{
329 struct ieee80211_node *ni;
330 struct mbuf *m;
331
332 for (;;) {
333 IF_DEQUEUE(ifq, m);
334 if (m == NULL)
335 break;
336
337 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
338 KASSERT(ni != NULL, ("frame w/o node"));
339 ieee80211_free_node(ni);
340 m->m_pkthdr.rcvif = NULL;
341
342 m_freem(m);
343 }
344}
345
346void
347ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap)
348{
349 struct ieee80211_node *ni;
350 struct mbuf *m, **mprev;
351
352 IF_LOCK(ifq);
353 mprev = &ifq->ifq_head;
354 while ((m = *mprev) != NULL) {
355 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
356 if (ni != NULL && ni->ni_vap == vap) {
357 *mprev = m->m_nextpkt; /* remove from list */
358 ifq->ifq_len--;
359
360 m_freem(m);
361 ieee80211_free_node(ni); /* reclaim ref */
362 } else
363 mprev = &m->m_nextpkt;
364 }
365 /* recalculate tail ptr */
366 m = ifq->ifq_head;
367 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt)
368 ;
369 ifq->ifq_tail = m;
370 IF_UNLOCK(ifq);
371}
372
373/*
374 * As above, for mbufs allocated with m_gethdr/MGETHDR
375 * or initialized by M_COPY_PKTHDR.
376 */
377#define MC_ALIGN(m, len) \
378do { \
379 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \
380} while (/* CONSTCOND */ 0)
381
382/*
383 * Allocate and setup a management frame of the specified
384 * size. We return the mbuf and a pointer to the start
385 * of the contiguous data area that's been reserved based
386 * on the packet length. The data area is forced to 32-bit
387 * alignment and the buffer length to a multiple of 4 bytes.
388 * This is done mainly so beacon frames (that require this)
389 * can use this interface too.
390 */
391struct mbuf *
392ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen)
393{
394 struct mbuf *m;
395 u_int len;
396
397 /*
398 * NB: we know the mbuf routines will align the data area
399 * so we don't need to do anything special.
400 */
401 len = roundup2(headroom + pktlen, 4);
402 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len));
403 if (len < MINCLSIZE) {
404 m = m_gethdr(M_NOWAIT, MT_DATA);
405 /*
406 * Align the data in case additional headers are added.
407 * This should only happen when a WEP header is added
408 * which only happens for shared key authentication mgt
409 * frames which all fit in MHLEN.
410 */
411 if (m != NULL)
412 MH_ALIGN(m, len);
413 } else {
414 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
415 if (m != NULL)
416 MC_ALIGN(m, len);
417 }
418 if (m != NULL) {
419 m->m_data += headroom;
420 *frm = m->m_data;
421 }
422 return m;
423}
424
425int
426ieee80211_add_callback(struct mbuf *m,
427 void (*func)(struct ieee80211_node *, void *, int), void *arg)
428{
429 struct m_tag *mtag;
430 struct ieee80211_cb *cb;
431
432 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK,
433 sizeof(struct ieee80211_cb), M_NOWAIT);
434 if (mtag == NULL)
435 return 0;
436
437 cb = (struct ieee80211_cb *)(mtag+1);
438 cb->func = func;
439 cb->arg = arg;
440 m_tag_prepend(m, mtag);
441 m->m_flags |= M_TXCB;
442 return 1;
443}
444
445void
446ieee80211_process_callback(struct ieee80211_node *ni,
447 struct mbuf *m, int status)
448{
449 struct m_tag *mtag;
450
451 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL);
452 if (mtag != NULL) {
453 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1);
454 cb->func(ni, cb->arg, status);
455 }
456}
457
458#include <sys/libkern.h>
459
460void
461get_random_bytes(void *p, size_t n)
462{
463 uint8_t *dp = p;
464
465 while (n > 0) {
466 uint32_t v = arc4random();
467 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n;
468 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n);
469 dp += sizeof(uint32_t), n -= nb;
470 }
471}
472
473/*
474 * Helper function for events that pass just a single mac address.
475 */
476static void
477notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN])
478{
479 struct ieee80211_join_event iev;
480
481 memset(&iev, 0, sizeof(iev));
482 IEEE80211_ADDR_COPY(iev.iev_addr, mac);
483 rt_ieee80211msg(ifp, op, &iev, sizeof(iev));
484}
485
486void
487ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc)
488{
489 struct ieee80211vap *vap = ni->ni_vap;
490 struct ifnet *ifp = vap->iv_ifp;
491
492 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join",
493 (ni == vap->iv_bss) ? "bss " : "");
494
495 if (ni == vap->iv_bss) {
496 notify_macaddr(ifp, newassoc ?
497 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid);
498 if_link_state_change(ifp, LINK_STATE_UP);
499 } else {
500 notify_macaddr(ifp, newassoc ?
501 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr);
502 }
503}
504
505void
506ieee80211_notify_node_leave(struct ieee80211_node *ni)
507{
508 struct ieee80211vap *vap = ni->ni_vap;
509 struct ifnet *ifp = vap->iv_ifp;
510
511 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave",
512 (ni == vap->iv_bss) ? "bss " : "");
513
514 if (ni == vap->iv_bss) {
515 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0);
516 if_link_state_change(ifp, LINK_STATE_DOWN);
517 } else {
518 /* fire off wireless event station leaving */
519 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr);
520 }
521}
522
523void
524ieee80211_notify_scan_done(struct ieee80211vap *vap)
525{
526 struct ifnet *ifp = vap->iv_ifp;
527
528 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done");
529
530 /* dispatch wireless event indicating scan completed */
531 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0);
532}
533
534void
535ieee80211_notify_replay_failure(struct ieee80211vap *vap,
536 const struct ieee80211_frame *wh, const struct ieee80211_key *k,
537 u_int64_t rsc)
538{
539 struct ifnet *ifp = vap->iv_ifp;
540
541 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2,
542 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>",
543 k->wk_cipher->ic_name, (intmax_t) rsc,
544 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID],
545 k->wk_keyix, k->wk_rxkeyix);
546
547 if (ifp != NULL) { /* NB: for cipher test modules */
548 struct ieee80211_replay_event iev;
549
550 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
551 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
552 iev.iev_cipher = k->wk_cipher->ic_cipher;
553 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE)
554 iev.iev_keyix = k->wk_rxkeyix;
555 else
556 iev.iev_keyix = k->wk_keyix;
557 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */
558 iev.iev_rsc = rsc;
559 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev));
560 }
561}
562
563void
564ieee80211_notify_michael_failure(struct ieee80211vap *vap,
565 const struct ieee80211_frame *wh, u_int keyix)
566{
567 struct ifnet *ifp = vap->iv_ifp;
568
569 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2,
570 "michael MIC verification failed <keyix %u>", keyix);
571 vap->iv_stats.is_rx_tkipmic++;
572
573 if (ifp != NULL) { /* NB: for cipher test modules */
574 struct ieee80211_michael_event iev;
575
576 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
577 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
578 iev.iev_cipher = IEEE80211_CIPHER_TKIP;
579 iev.iev_keyix = keyix;
580 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev));
581 }
582}
583
584void
585ieee80211_notify_wds_discover(struct ieee80211_node *ni)
586{
587 struct ieee80211vap *vap = ni->ni_vap;
588 struct ifnet *ifp = vap->iv_ifp;
589
590 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr);
591}
592
593void
594ieee80211_notify_csa(struct ieee80211com *ic,
595 const struct ieee80211_channel *c, int mode, int count)
596{
597 struct ifnet *ifp = ic->ic_ifp;
598 struct ieee80211_csa_event iev;
599
600 memset(&iev, 0, sizeof(iev));
601 iev.iev_flags = c->ic_flags;
602 iev.iev_freq = c->ic_freq;
603 iev.iev_ieee = c->ic_ieee;
604 iev.iev_mode = mode;
605 iev.iev_count = count;
606 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev));
607}
608
609void
610ieee80211_notify_radar(struct ieee80211com *ic,
611 const struct ieee80211_channel *c)
612{
613 struct ifnet *ifp = ic->ic_ifp;
614 struct ieee80211_radar_event iev;
615
616 memset(&iev, 0, sizeof(iev));
617 iev.iev_flags = c->ic_flags;
618 iev.iev_freq = c->ic_freq;
619 iev.iev_ieee = c->ic_ieee;
620 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev));
621}
622
623void
624ieee80211_notify_cac(struct ieee80211com *ic,
625 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type)
626{
627 struct ifnet *ifp = ic->ic_ifp;
628 struct ieee80211_cac_event iev;
629
630 memset(&iev, 0, sizeof(iev));
631 iev.iev_flags = c->ic_flags;
632 iev.iev_freq = c->ic_freq;
633 iev.iev_ieee = c->ic_ieee;
634 iev.iev_type = type;
635 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev));
636}
637
638void
639ieee80211_notify_node_deauth(struct ieee80211_node *ni)
640{
641 struct ieee80211vap *vap = ni->ni_vap;
642 struct ifnet *ifp = vap->iv_ifp;
643
644 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth");
645
646 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr);
647}
648
649void
650ieee80211_notify_node_auth(struct ieee80211_node *ni)
651{
652 struct ieee80211vap *vap = ni->ni_vap;
653 struct ifnet *ifp = vap->iv_ifp;
654
655 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth");
656
657 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr);
658}
659
660void
661ieee80211_notify_country(struct ieee80211vap *vap,
662 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2])
663{
664 struct ifnet *ifp = vap->iv_ifp;
665 struct ieee80211_country_event iev;
666
667 memset(&iev, 0, sizeof(iev));
668 IEEE80211_ADDR_COPY(iev.iev_addr, bssid);
669 iev.iev_cc[0] = cc[0];
670 iev.iev_cc[1] = cc[1];
671 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev));
672}
673
674void
675ieee80211_notify_radio(struct ieee80211com *ic, int state)
676{
677 struct ifnet *ifp = ic->ic_ifp;
678 struct ieee80211_radio_event iev;
679
680 memset(&iev, 0, sizeof(iev));
681 iev.iev_state = state;
682 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev));
683}
684
685void
686ieee80211_load_module(const char *modname)
687{
688
689#ifdef notyet
690 (void)kern_kldload(curthread, modname, NULL);
691#else
692 printf("%s: load the %s module by hand for now.\n", __func__, modname);
693#endif
694}
695
696/*
697 * Module glue.
698 *
699 * NB: the module name is "wlan" for compatibility with NetBSD.
700 */
701static int
702wlan_modevent(module_t mod, int type, void *unused)
703{
704 switch (type) {
705 case MOD_LOAD:
706 if (bootverbose)
707 printf("wlan: <802.11 Link Layer>\n");
708 if_clone_attach(&wlan_cloner);
709 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free);
710 return 0;
711 case MOD_UNLOAD:
712 if_deregister_com_alloc(IFT_IEEE80211);
713 if_clone_detach(&wlan_cloner);
714 return 0;
715 }
716 return EINVAL;
717}
718
719static moduledata_t wlan_mod = {
720 "wlan",
721 wlan_modevent,
722 0
723};
724DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
725MODULE_VERSION(wlan, 1);
726MODULE_DEPEND(wlan, ether, 1, 1, 1);
| 314 vap->iv_sysctl = NULL;
315 }
316}
317
318int
319ieee80211_node_dectestref(struct ieee80211_node *ni)
320{
321 /* XXX need equivalent of atomic_dec_and_test */
322 atomic_subtract_int(&ni->ni_refcnt, 1);
323 return atomic_cmpset_int(&ni->ni_refcnt, 0, 1);
324}
325
326void
327ieee80211_drain_ifq(struct ifqueue *ifq)
328{
329 struct ieee80211_node *ni;
330 struct mbuf *m;
331
332 for (;;) {
333 IF_DEQUEUE(ifq, m);
334 if (m == NULL)
335 break;
336
337 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
338 KASSERT(ni != NULL, ("frame w/o node"));
339 ieee80211_free_node(ni);
340 m->m_pkthdr.rcvif = NULL;
341
342 m_freem(m);
343 }
344}
345
346void
347ieee80211_flush_ifq(struct ifqueue *ifq, struct ieee80211vap *vap)
348{
349 struct ieee80211_node *ni;
350 struct mbuf *m, **mprev;
351
352 IF_LOCK(ifq);
353 mprev = &ifq->ifq_head;
354 while ((m = *mprev) != NULL) {
355 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
356 if (ni != NULL && ni->ni_vap == vap) {
357 *mprev = m->m_nextpkt; /* remove from list */
358 ifq->ifq_len--;
359
360 m_freem(m);
361 ieee80211_free_node(ni); /* reclaim ref */
362 } else
363 mprev = &m->m_nextpkt;
364 }
365 /* recalculate tail ptr */
366 m = ifq->ifq_head;
367 for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt)
368 ;
369 ifq->ifq_tail = m;
370 IF_UNLOCK(ifq);
371}
372
373/*
374 * As above, for mbufs allocated with m_gethdr/MGETHDR
375 * or initialized by M_COPY_PKTHDR.
376 */
377#define MC_ALIGN(m, len) \
378do { \
379 (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1); \
380} while (/* CONSTCOND */ 0)
381
382/*
383 * Allocate and setup a management frame of the specified
384 * size. We return the mbuf and a pointer to the start
385 * of the contiguous data area that's been reserved based
386 * on the packet length. The data area is forced to 32-bit
387 * alignment and the buffer length to a multiple of 4 bytes.
388 * This is done mainly so beacon frames (that require this)
389 * can use this interface too.
390 */
391struct mbuf *
392ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen)
393{
394 struct mbuf *m;
395 u_int len;
396
397 /*
398 * NB: we know the mbuf routines will align the data area
399 * so we don't need to do anything special.
400 */
401 len = roundup2(headroom + pktlen, 4);
402 KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len));
403 if (len < MINCLSIZE) {
404 m = m_gethdr(M_NOWAIT, MT_DATA);
405 /*
406 * Align the data in case additional headers are added.
407 * This should only happen when a WEP header is added
408 * which only happens for shared key authentication mgt
409 * frames which all fit in MHLEN.
410 */
411 if (m != NULL)
412 MH_ALIGN(m, len);
413 } else {
414 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
415 if (m != NULL)
416 MC_ALIGN(m, len);
417 }
418 if (m != NULL) {
419 m->m_data += headroom;
420 *frm = m->m_data;
421 }
422 return m;
423}
424
425int
426ieee80211_add_callback(struct mbuf *m,
427 void (*func)(struct ieee80211_node *, void *, int), void *arg)
428{
429 struct m_tag *mtag;
430 struct ieee80211_cb *cb;
431
432 mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK,
433 sizeof(struct ieee80211_cb), M_NOWAIT);
434 if (mtag == NULL)
435 return 0;
436
437 cb = (struct ieee80211_cb *)(mtag+1);
438 cb->func = func;
439 cb->arg = arg;
440 m_tag_prepend(m, mtag);
441 m->m_flags |= M_TXCB;
442 return 1;
443}
444
445void
446ieee80211_process_callback(struct ieee80211_node *ni,
447 struct mbuf *m, int status)
448{
449 struct m_tag *mtag;
450
451 mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL);
452 if (mtag != NULL) {
453 struct ieee80211_cb *cb = (struct ieee80211_cb *)(mtag+1);
454 cb->func(ni, cb->arg, status);
455 }
456}
457
458#include <sys/libkern.h>
459
460void
461get_random_bytes(void *p, size_t n)
462{
463 uint8_t *dp = p;
464
465 while (n > 0) {
466 uint32_t v = arc4random();
467 size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n;
468 bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n);
469 dp += sizeof(uint32_t), n -= nb;
470 }
471}
472
473/*
474 * Helper function for events that pass just a single mac address.
475 */
476static void
477notify_macaddr(struct ifnet *ifp, int op, const uint8_t mac[IEEE80211_ADDR_LEN])
478{
479 struct ieee80211_join_event iev;
480
481 memset(&iev, 0, sizeof(iev));
482 IEEE80211_ADDR_COPY(iev.iev_addr, mac);
483 rt_ieee80211msg(ifp, op, &iev, sizeof(iev));
484}
485
486void
487ieee80211_notify_node_join(struct ieee80211_node *ni, int newassoc)
488{
489 struct ieee80211vap *vap = ni->ni_vap;
490 struct ifnet *ifp = vap->iv_ifp;
491
492 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode join",
493 (ni == vap->iv_bss) ? "bss " : "");
494
495 if (ni == vap->iv_bss) {
496 notify_macaddr(ifp, newassoc ?
497 RTM_IEEE80211_ASSOC : RTM_IEEE80211_REASSOC, ni->ni_bssid);
498 if_link_state_change(ifp, LINK_STATE_UP);
499 } else {
500 notify_macaddr(ifp, newassoc ?
501 RTM_IEEE80211_JOIN : RTM_IEEE80211_REJOIN, ni->ni_macaddr);
502 }
503}
504
505void
506ieee80211_notify_node_leave(struct ieee80211_node *ni)
507{
508 struct ieee80211vap *vap = ni->ni_vap;
509 struct ifnet *ifp = vap->iv_ifp;
510
511 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%snode leave",
512 (ni == vap->iv_bss) ? "bss " : "");
513
514 if (ni == vap->iv_bss) {
515 rt_ieee80211msg(ifp, RTM_IEEE80211_DISASSOC, NULL, 0);
516 if_link_state_change(ifp, LINK_STATE_DOWN);
517 } else {
518 /* fire off wireless event station leaving */
519 notify_macaddr(ifp, RTM_IEEE80211_LEAVE, ni->ni_macaddr);
520 }
521}
522
523void
524ieee80211_notify_scan_done(struct ieee80211vap *vap)
525{
526 struct ifnet *ifp = vap->iv_ifp;
527
528 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN, "%s\n", "notify scan done");
529
530 /* dispatch wireless event indicating scan completed */
531 rt_ieee80211msg(ifp, RTM_IEEE80211_SCAN, NULL, 0);
532}
533
534void
535ieee80211_notify_replay_failure(struct ieee80211vap *vap,
536 const struct ieee80211_frame *wh, const struct ieee80211_key *k,
537 u_int64_t rsc)
538{
539 struct ifnet *ifp = vap->iv_ifp;
540
541 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2,
542 "%s replay detected <rsc %ju, csc %ju, keyix %u rxkeyix %u>",
543 k->wk_cipher->ic_name, (intmax_t) rsc,
544 (intmax_t) k->wk_keyrsc[IEEE80211_NONQOS_TID],
545 k->wk_keyix, k->wk_rxkeyix);
546
547 if (ifp != NULL) { /* NB: for cipher test modules */
548 struct ieee80211_replay_event iev;
549
550 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
551 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
552 iev.iev_cipher = k->wk_cipher->ic_cipher;
553 if (k->wk_rxkeyix != IEEE80211_KEYIX_NONE)
554 iev.iev_keyix = k->wk_rxkeyix;
555 else
556 iev.iev_keyix = k->wk_keyix;
557 iev.iev_keyrsc = k->wk_keyrsc[0]; /* XXX need tid */
558 iev.iev_rsc = rsc;
559 rt_ieee80211msg(ifp, RTM_IEEE80211_REPLAY, &iev, sizeof(iev));
560 }
561}
562
563void
564ieee80211_notify_michael_failure(struct ieee80211vap *vap,
565 const struct ieee80211_frame *wh, u_int keyix)
566{
567 struct ifnet *ifp = vap->iv_ifp;
568
569 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_CRYPTO, wh->i_addr2,
570 "michael MIC verification failed <keyix %u>", keyix);
571 vap->iv_stats.is_rx_tkipmic++;
572
573 if (ifp != NULL) { /* NB: for cipher test modules */
574 struct ieee80211_michael_event iev;
575
576 IEEE80211_ADDR_COPY(iev.iev_dst, wh->i_addr1);
577 IEEE80211_ADDR_COPY(iev.iev_src, wh->i_addr2);
578 iev.iev_cipher = IEEE80211_CIPHER_TKIP;
579 iev.iev_keyix = keyix;
580 rt_ieee80211msg(ifp, RTM_IEEE80211_MICHAEL, &iev, sizeof(iev));
581 }
582}
583
584void
585ieee80211_notify_wds_discover(struct ieee80211_node *ni)
586{
587 struct ieee80211vap *vap = ni->ni_vap;
588 struct ifnet *ifp = vap->iv_ifp;
589
590 notify_macaddr(ifp, RTM_IEEE80211_WDS, ni->ni_macaddr);
591}
592
593void
594ieee80211_notify_csa(struct ieee80211com *ic,
595 const struct ieee80211_channel *c, int mode, int count)
596{
597 struct ifnet *ifp = ic->ic_ifp;
598 struct ieee80211_csa_event iev;
599
600 memset(&iev, 0, sizeof(iev));
601 iev.iev_flags = c->ic_flags;
602 iev.iev_freq = c->ic_freq;
603 iev.iev_ieee = c->ic_ieee;
604 iev.iev_mode = mode;
605 iev.iev_count = count;
606 rt_ieee80211msg(ifp, RTM_IEEE80211_CSA, &iev, sizeof(iev));
607}
608
609void
610ieee80211_notify_radar(struct ieee80211com *ic,
611 const struct ieee80211_channel *c)
612{
613 struct ifnet *ifp = ic->ic_ifp;
614 struct ieee80211_radar_event iev;
615
616 memset(&iev, 0, sizeof(iev));
617 iev.iev_flags = c->ic_flags;
618 iev.iev_freq = c->ic_freq;
619 iev.iev_ieee = c->ic_ieee;
620 rt_ieee80211msg(ifp, RTM_IEEE80211_RADAR, &iev, sizeof(iev));
621}
622
623void
624ieee80211_notify_cac(struct ieee80211com *ic,
625 const struct ieee80211_channel *c, enum ieee80211_notify_cac_event type)
626{
627 struct ifnet *ifp = ic->ic_ifp;
628 struct ieee80211_cac_event iev;
629
630 memset(&iev, 0, sizeof(iev));
631 iev.iev_flags = c->ic_flags;
632 iev.iev_freq = c->ic_freq;
633 iev.iev_ieee = c->ic_ieee;
634 iev.iev_type = type;
635 rt_ieee80211msg(ifp, RTM_IEEE80211_CAC, &iev, sizeof(iev));
636}
637
638void
639ieee80211_notify_node_deauth(struct ieee80211_node *ni)
640{
641 struct ieee80211vap *vap = ni->ni_vap;
642 struct ifnet *ifp = vap->iv_ifp;
643
644 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node deauth");
645
646 notify_macaddr(ifp, RTM_IEEE80211_DEAUTH, ni->ni_macaddr);
647}
648
649void
650ieee80211_notify_node_auth(struct ieee80211_node *ni)
651{
652 struct ieee80211vap *vap = ni->ni_vap;
653 struct ifnet *ifp = vap->iv_ifp;
654
655 IEEE80211_NOTE(vap, IEEE80211_MSG_NODE, ni, "%s", "node auth");
656
657 notify_macaddr(ifp, RTM_IEEE80211_AUTH, ni->ni_macaddr);
658}
659
660void
661ieee80211_notify_country(struct ieee80211vap *vap,
662 const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2])
663{
664 struct ifnet *ifp = vap->iv_ifp;
665 struct ieee80211_country_event iev;
666
667 memset(&iev, 0, sizeof(iev));
668 IEEE80211_ADDR_COPY(iev.iev_addr, bssid);
669 iev.iev_cc[0] = cc[0];
670 iev.iev_cc[1] = cc[1];
671 rt_ieee80211msg(ifp, RTM_IEEE80211_COUNTRY, &iev, sizeof(iev));
672}
673
674void
675ieee80211_notify_radio(struct ieee80211com *ic, int state)
676{
677 struct ifnet *ifp = ic->ic_ifp;
678 struct ieee80211_radio_event iev;
679
680 memset(&iev, 0, sizeof(iev));
681 iev.iev_state = state;
682 rt_ieee80211msg(ifp, RTM_IEEE80211_RADIO, &iev, sizeof(iev));
683}
684
685void
686ieee80211_load_module(const char *modname)
687{
688
689#ifdef notyet
690 (void)kern_kldload(curthread, modname, NULL);
691#else
692 printf("%s: load the %s module by hand for now.\n", __func__, modname);
693#endif
694}
695
696/*
697 * Module glue.
698 *
699 * NB: the module name is "wlan" for compatibility with NetBSD.
700 */
701static int
702wlan_modevent(module_t mod, int type, void *unused)
703{
704 switch (type) {
705 case MOD_LOAD:
706 if (bootverbose)
707 printf("wlan: <802.11 Link Layer>\n");
708 if_clone_attach(&wlan_cloner);
709 if_register_com_alloc(IFT_IEEE80211, wlan_alloc, wlan_free);
710 return 0;
711 case MOD_UNLOAD:
712 if_deregister_com_alloc(IFT_IEEE80211);
713 if_clone_detach(&wlan_cloner);
714 return 0;
715 }
716 return EINVAL;
717}
718
719static moduledata_t wlan_mod = {
720 "wlan",
721 wlan_modevent,
722 0
723};
724DECLARE_MODULE(wlan, wlan_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
725MODULE_VERSION(wlan, 1);
726MODULE_DEPEND(wlan, ether, 1, 1, 1);
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