1 /*-
2 * Copyright (c) 2009 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 #ifdef __FreeBSD__
28 __FBSDID("$FreeBSD$");
29 #endif
30
31 /*
32 * IEEE 802.11 send/recv action frame support.
33 */
34
35 #include "opt_inet.h"
36 #include "opt_wlan.h"
37
38 #include <sys/param.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/systm.h>
42
43 #include <sys/socket.h>
44
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_media.h>
48 #include <net/ethernet.h>
49
50 #include <net80211/ieee80211_var.h>
51 #include <net80211/ieee80211_action.h>
52 #include <net80211/ieee80211_mesh.h>
53
54 static int
55 send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
56 {
57 return EINVAL;
58 }
59
60 static ieee80211_send_action_func *ba_send_action[8] = {
61 send_inval, send_inval, send_inval, send_inval,
62 send_inval, send_inval, send_inval, send_inval,
63 };
64 static ieee80211_send_action_func *ht_send_action[8] = {
65 send_inval, send_inval, send_inval, send_inval,
66 send_inval, send_inval, send_inval, send_inval,
67 };
68 static ieee80211_send_action_func *meshpl_send_action[8] = {
69 send_inval, send_inval, send_inval, send_inval,
70 send_inval, send_inval, send_inval, send_inval,
71 };
72 static ieee80211_send_action_func *meshaction_send_action[12] = {
73 send_inval, send_inval, send_inval, send_inval,
74 send_inval, send_inval, send_inval, send_inval,
75 send_inval, send_inval, send_inval, send_inval,
76 };
77 static ieee80211_send_action_func *vendor_send_action[8] = {
78 send_inval, send_inval, send_inval, send_inval,
79 send_inval, send_inval, send_inval, send_inval,
80 };
81
82 static ieee80211_send_action_func *vht_send_action[3] = {
83 send_inval, send_inval, send_inval,
84 };
85
86 int
87 ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
88 {
89 switch (cat) {
90 case IEEE80211_ACTION_CAT_BA:
91 if (act >= nitems(ba_send_action))
92 break;
93 ba_send_action[act] = f;
94 return 0;
95 case IEEE80211_ACTION_CAT_HT:
96 if (act >= nitems(ht_send_action))
97 break;
98 ht_send_action[act] = f;
99 return 0;
100 case IEEE80211_ACTION_CAT_SELF_PROT:
101 if (act >= nitems(meshpl_send_action))
102 break;
103 meshpl_send_action[act] = f;
104 return 0;
105 case IEEE80211_ACTION_CAT_MESH:
106 if (act >= nitems(meshaction_send_action))
107 break;
108 meshaction_send_action[act] = f;
109 return 0;
110 case IEEE80211_ACTION_CAT_VENDOR:
111 if (act >= nitems(vendor_send_action))
112 break;
113 vendor_send_action[act] = f;
114 return 0;
115 case IEEE80211_ACTION_CAT_VHT:
116 if (act >= nitems(vht_send_action))
117 break;
118 vht_send_action[act] = f;
119 return 0;
120 }
121 return EINVAL;
122 }
123
124 void
125 ieee80211_send_action_unregister(int cat, int act)
126 {
127 ieee80211_send_action_register(cat, act, send_inval);
128 }
129
130 int
131 ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
132 {
133 ieee80211_send_action_func *f = send_inval;
134
135 switch (cat) {
136 case IEEE80211_ACTION_CAT_BA:
137 if (act < nitems(ba_send_action))
138 f = ba_send_action[act];
139 break;
140 case IEEE80211_ACTION_CAT_HT:
141 if (act < nitems(ht_send_action))
142 f = ht_send_action[act];
143 break;
144 case IEEE80211_ACTION_CAT_SELF_PROT:
145 if (act < nitems(meshpl_send_action))
146 f = meshpl_send_action[act];
147 break;
148 case IEEE80211_ACTION_CAT_MESH:
149 if (act < nitems(meshaction_send_action))
150 f = meshaction_send_action[act];
151 break;
152 case IEEE80211_ACTION_CAT_VENDOR:
153 if (act < nitems(vendor_send_action))
154 f = vendor_send_action[act];
155 break;
156 case IEEE80211_ACTION_CAT_VHT:
157 if (act < nitems(vht_send_action))
158 f = vht_send_action[act];
159 break;
160 }
161 return f(ni, cat, act, sa);
162 }
163
164 static int
165 recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
166 const uint8_t *frm, const uint8_t *efrm)
167 {
168 return EINVAL;
169 }
170
171 static ieee80211_recv_action_func *ba_recv_action[8] = {
172 recv_inval, recv_inval, recv_inval, recv_inval,
173 recv_inval, recv_inval, recv_inval, recv_inval,
174 };
175 static ieee80211_recv_action_func *ht_recv_action[8] = {
176 recv_inval, recv_inval, recv_inval, recv_inval,
177 recv_inval, recv_inval, recv_inval, recv_inval,
178 };
179 static ieee80211_recv_action_func *meshpl_recv_action[8] = {
180 recv_inval, recv_inval, recv_inval, recv_inval,
181 recv_inval, recv_inval, recv_inval, recv_inval,
182 };
183 static ieee80211_recv_action_func *meshaction_recv_action[12] = {
184 recv_inval, recv_inval, recv_inval, recv_inval,
185 recv_inval, recv_inval, recv_inval, recv_inval,
186 recv_inval, recv_inval, recv_inval, recv_inval,
187 };
188 static ieee80211_recv_action_func *vendor_recv_action[8] = {
189 recv_inval, recv_inval, recv_inval, recv_inval,
190 recv_inval, recv_inval, recv_inval, recv_inval,
191 };
192
193 static ieee80211_recv_action_func *vht_recv_action[3] = {
194 recv_inval, recv_inval, recv_inval
195 };
196
197 int
198 ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
199 {
200 switch (cat) {
201 case IEEE80211_ACTION_CAT_BA:
202 if (act >= nitems(ba_recv_action))
203 break;
204 ba_recv_action[act] = f;
205 return 0;
206 case IEEE80211_ACTION_CAT_HT:
207 if (act >= nitems(ht_recv_action))
208 break;
209 ht_recv_action[act] = f;
210 return 0;
211 case IEEE80211_ACTION_CAT_SELF_PROT:
212 if (act >= nitems(meshpl_recv_action))
213 break;
214 meshpl_recv_action[act] = f;
215 return 0;
216 case IEEE80211_ACTION_CAT_MESH:
217 if (act >= nitems(meshaction_recv_action))
218 break;
219 meshaction_recv_action[act] = f;
220 return 0;
221 case IEEE80211_ACTION_CAT_VENDOR:
222 if (act >= nitems(vendor_recv_action))
223 break;
224 vendor_recv_action[act] = f;
225 return 0;
226 case IEEE80211_ACTION_CAT_VHT:
227 if (act >= nitems(vht_recv_action))
228 break;
229 vht_recv_action[act] = f;
230 return 0;
231 }
232 return EINVAL;
233 }
234
235 void
236 ieee80211_recv_action_unregister(int cat, int act)
237 {
238 ieee80211_recv_action_register(cat, act, recv_inval);
239 }
240
241 int
242 ieee80211_recv_action(struct ieee80211_node *ni,
243 const struct ieee80211_frame *wh,
244 const uint8_t *frm, const uint8_t *efrm)
245 {
246 ieee80211_recv_action_func *f = recv_inval;
247 struct ieee80211vap *vap = ni->ni_vap;
248 const struct ieee80211_action *ia =
249 (const struct ieee80211_action *) frm;
250
251 switch (ia->ia_category) {
252 case IEEE80211_ACTION_CAT_BA:
253 if (ia->ia_action < nitems(ba_recv_action))
254 f = ba_recv_action[ia->ia_action];
255 break;
256 case IEEE80211_ACTION_CAT_HT:
257 if (ia->ia_action < nitems(ht_recv_action))
258 f = ht_recv_action[ia->ia_action];
259 break;
260 case IEEE80211_ACTION_CAT_SELF_PROT:
261 if (ia->ia_action < nitems(meshpl_recv_action))
262 f = meshpl_recv_action[ia->ia_action];
263 break;
264 case IEEE80211_ACTION_CAT_MESH:
265 if (ni == vap->iv_bss ||
266 ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
267 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
268 ni->ni_macaddr, NULL,
269 "peer link not yet established (%d), cat %s act %u",
270 ni->ni_mlstate, "mesh action", ia->ia_action);
271 vap->iv_stats.is_mesh_nolink++;
272 break;
273 }
274 if (ia->ia_action < nitems(meshaction_recv_action))
275 f = meshaction_recv_action[ia->ia_action];
276 break;
277 case IEEE80211_ACTION_CAT_VENDOR:
278 if (ia->ia_action < nitems(vendor_recv_action))
279 f = vendor_recv_action[ia->ia_action];
280 break;
281 case IEEE80211_ACTION_CAT_VHT:
282 if (ia->ia_action < nitems(vht_recv_action))
283 f = vht_recv_action[ia->ia_action];
284 break;
285 }
286 return f(ni, wh, frm, efrm);
287 }
Cache object: f71a5d0c2da8ffba9710adb948cf2595
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