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: releng/10.2/sys/net80211/ieee80211_action.c 254315 2013-08-14 04:24:25Z rpaulo $");
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/systm.h>
41
42 #include <sys/socket.h>
43
44 #include <net/if.h>
45 #include <net/if_media.h>
46 #include <net/ethernet.h>
47
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_action.h>
50 #include <net80211/ieee80211_mesh.h>
51
52 static int
53 send_inval(struct ieee80211_node *ni, int cat, int act, void *sa)
54 {
55 return EINVAL;
56 }
57
58 static ieee80211_send_action_func *ba_send_action[8] = {
59 send_inval, send_inval, send_inval, send_inval,
60 send_inval, send_inval, send_inval, send_inval,
61 };
62 static ieee80211_send_action_func *ht_send_action[8] = {
63 send_inval, send_inval, send_inval, send_inval,
64 send_inval, send_inval, send_inval, send_inval,
65 };
66 static ieee80211_send_action_func *meshpl_send_action[8] = {
67 send_inval, send_inval, send_inval, send_inval,
68 send_inval, send_inval, send_inval, send_inval,
69 };
70 static ieee80211_send_action_func *meshaction_send_action[12] = {
71 send_inval, send_inval, send_inval, send_inval,
72 send_inval, send_inval, send_inval, send_inval,
73 send_inval, send_inval, send_inval, send_inval,
74 };
75 static ieee80211_send_action_func *vendor_send_action[8] = {
76 send_inval, send_inval, send_inval, send_inval,
77 send_inval, send_inval, send_inval, send_inval,
78 };
79
80 int
81 ieee80211_send_action_register(int cat, int act, ieee80211_send_action_func *f)
82 {
83 switch (cat) {
84 case IEEE80211_ACTION_CAT_BA:
85 if (act >= nitems(ba_send_action))
86 break;
87 ba_send_action[act] = f;
88 return 0;
89 case IEEE80211_ACTION_CAT_HT:
90 if (act >= nitems(ht_send_action))
91 break;
92 ht_send_action[act] = f;
93 return 0;
94 case IEEE80211_ACTION_CAT_SELF_PROT:
95 if (act >= nitems(meshpl_send_action))
96 break;
97 meshpl_send_action[act] = f;
98 return 0;
99 case IEEE80211_ACTION_CAT_MESH:
100 if (act >= nitems(meshaction_send_action))
101 break;
102 meshaction_send_action[act] = f;
103 return 0;
104 break;
105 case IEEE80211_ACTION_CAT_VENDOR:
106 if (act >= nitems(vendor_send_action))
107 break;
108 vendor_send_action[act] = f;
109 return 0;
110 }
111 return EINVAL;
112 }
113
114 void
115 ieee80211_send_action_unregister(int cat, int act)
116 {
117 ieee80211_send_action_register(cat, act, send_inval);
118 }
119
120 int
121 ieee80211_send_action(struct ieee80211_node *ni, int cat, int act, void *sa)
122 {
123 ieee80211_send_action_func *f = send_inval;
124
125 switch (cat) {
126 case IEEE80211_ACTION_CAT_BA:
127 if (act < nitems(ba_send_action))
128 f = ba_send_action[act];
129 break;
130 case IEEE80211_ACTION_CAT_HT:
131 if (act < nitems(ht_send_action))
132 f = ht_send_action[act];
133 break;
134 case IEEE80211_ACTION_CAT_SELF_PROT:
135 if (act < nitems(meshpl_send_action))
136 f = meshpl_send_action[act];
137 break;
138 case IEEE80211_ACTION_CAT_MESH:
139 if (act < nitems(meshaction_send_action))
140 f = meshaction_send_action[act];
141 break;
142 case IEEE80211_ACTION_CAT_VENDOR:
143 if (act < nitems(vendor_send_action))
144 f = vendor_send_action[act];
145 break;
146 }
147 return f(ni, cat, act, sa);
148 }
149
150 static int
151 recv_inval(struct ieee80211_node *ni, const struct ieee80211_frame *wh,
152 const uint8_t *frm, const uint8_t *efrm)
153 {
154 return EINVAL;
155 }
156
157 static ieee80211_recv_action_func *ba_recv_action[8] = {
158 recv_inval, recv_inval, recv_inval, recv_inval,
159 recv_inval, recv_inval, recv_inval, recv_inval,
160 };
161 static ieee80211_recv_action_func *ht_recv_action[8] = {
162 recv_inval, recv_inval, recv_inval, recv_inval,
163 recv_inval, recv_inval, recv_inval, recv_inval,
164 };
165 static ieee80211_recv_action_func *meshpl_recv_action[8] = {
166 recv_inval, recv_inval, recv_inval, recv_inval,
167 recv_inval, recv_inval, recv_inval, recv_inval,
168 };
169 static ieee80211_recv_action_func *meshaction_recv_action[12] = {
170 recv_inval, recv_inval, recv_inval, recv_inval,
171 recv_inval, recv_inval, recv_inval, recv_inval,
172 recv_inval, recv_inval, recv_inval, recv_inval,
173 };
174 static ieee80211_recv_action_func *vendor_recv_action[8] = {
175 recv_inval, recv_inval, recv_inval, recv_inval,
176 recv_inval, recv_inval, recv_inval, recv_inval,
177 };
178
179 int
180 ieee80211_recv_action_register(int cat, int act, ieee80211_recv_action_func *f)
181 {
182 switch (cat) {
183 case IEEE80211_ACTION_CAT_BA:
184 if (act >= nitems(ba_recv_action))
185 break;
186 ba_recv_action[act] = f;
187 return 0;
188 case IEEE80211_ACTION_CAT_HT:
189 if (act >= nitems(ht_recv_action))
190 break;
191 ht_recv_action[act] = f;
192 return 0;
193 case IEEE80211_ACTION_CAT_SELF_PROT:
194 if (act >= nitems(meshpl_recv_action))
195 break;
196 meshpl_recv_action[act] = f;
197 return 0;
198 case IEEE80211_ACTION_CAT_MESH:
199 if (act >= nitems(meshaction_recv_action))
200 break;
201 meshaction_recv_action[act] = f;
202 return 0;
203 case IEEE80211_ACTION_CAT_VENDOR:
204 if (act >= nitems(vendor_recv_action))
205 break;
206 vendor_recv_action[act] = f;
207 return 0;
208 }
209 return EINVAL;
210 }
211
212 void
213 ieee80211_recv_action_unregister(int cat, int act)
214 {
215 ieee80211_recv_action_register(cat, act, recv_inval);
216 }
217
218 int
219 ieee80211_recv_action(struct ieee80211_node *ni,
220 const struct ieee80211_frame *wh,
221 const uint8_t *frm, const uint8_t *efrm)
222 {
223 ieee80211_recv_action_func *f = recv_inval;
224 struct ieee80211vap *vap = ni->ni_vap;
225 const struct ieee80211_action *ia =
226 (const struct ieee80211_action *) frm;
227
228 switch (ia->ia_category) {
229 case IEEE80211_ACTION_CAT_BA:
230 if (ia->ia_action < nitems(ba_recv_action))
231 f = ba_recv_action[ia->ia_action];
232 break;
233 case IEEE80211_ACTION_CAT_HT:
234 if (ia->ia_action < nitems(ht_recv_action))
235 f = ht_recv_action[ia->ia_action];
236 break;
237 case IEEE80211_ACTION_CAT_SELF_PROT:
238 if (ia->ia_action < nitems(meshpl_recv_action))
239 f = meshpl_recv_action[ia->ia_action];
240 break;
241 case IEEE80211_ACTION_CAT_MESH:
242 if (ni == vap->iv_bss ||
243 ni->ni_mlstate != IEEE80211_NODE_MESH_ESTABLISHED) {
244 IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_MESH,
245 ni->ni_macaddr, NULL,
246 "peer link not yet established (%d), cat %s act %u",
247 ni->ni_mlstate, "mesh action", ia->ia_action);
248 vap->iv_stats.is_mesh_nolink++;
249 break;
250 }
251 if (ia->ia_action < nitems(meshaction_recv_action))
252 f = meshaction_recv_action[ia->ia_action];
253 break;
254 case IEEE80211_ACTION_CAT_VENDOR:
255 if (ia->ia_action < nitems(vendor_recv_action))
256 f = vendor_recv_action[ia->ia_action];
257 break;
258 }
259 return f(ni, wh, frm, efrm);
260 }
Cache object: 90cd73a1a7244d3d40567bedbf9d02a9
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