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Viewing changes to src/drivers/driver_prism54.c

  • Committer: Bazaar Package Importer
  • Author(s): Reinhard Tartler, Alexander Sack
  • Date: 2007-08-26 16:06:57 UTC
  • mfrom: (1.1.9 upstream)
  • Revision ID: james.westby@ubuntu.com-20070826160657-2m8pxoweuxe8f93t
Tags: 0.6.0+0.5.8-0ubuntu1
https://launchpad.net/bugs/140763
https://launchpad.net/bugs/141233
* New upstream release
* remove patch 11_erroneous_manpage_ref, applied upstream
* remove patch 25_wpas_dbus_unregister_iface_fix, applied upstream

[ Alexander Sack ]
* bumping upstream version to replace development version 0.6.0 with
  this package from stable release branch.
* attempt to fix wierd timeout and high latency issues by going
  back to stable upstream version (0.5.9) (LP: #140763,
  LP: #141233).

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src/drivers/driver_prism54.c
1
 
/*
2
 
 * WPA Supplicant - driver interaction with Linux Prism54.org driver
3
 
 * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
4
 
 * Copyright (c) 2004, Luis R. Rodriguez <mcgrof@ruslug.rutgers.edu>
5
 
 *
6
 
 * This program is free software; you can redistribute it and/or modify
7
 
 * it under the terms of the GNU General Public License version 2 as
8
 
 * published by the Free Software Foundation.
9
 
 *
10
 
 * Alternatively, this software may be distributed under the terms of BSD
11
 
 * license.
12
 
 *
13
 
 * See README and COPYING for more details.
14
 
 */
15
 
 
16
 
#include "includes.h"
17
 
#include <sys/ioctl.h>
18
 
 
19
 
#include "wireless_copy.h"
20
 
#include "common.h"
21
 
#include "driver.h"
22
 
#include "driver_wext.h"
23
 
#include "driver_hostap.h"
24
 
 
25
 
struct wpa_driver_prism54_data {
26
 
        void *wext; /* private data for driver_wext */
27
 
        void *ctx;
28
 
        char ifname[IFNAMSIZ + 1];
29
 
        int sock;
30
 
};
31
 
 
32
 
#define PRISM54_SET_WPA                 SIOCIWFIRSTPRIV+12
33
 
#define PRISM54_HOSTAPD                 SIOCIWFIRSTPRIV+25
34
 
#define PRISM54_DROP_UNENCRYPTED        SIOCIWFIRSTPRIV+26
35
 
 
36
 
static void show_set_key_error(struct prism2_hostapd_param *);
37
 
 
38
 
static int hostapd_ioctl_prism54(struct wpa_driver_prism54_data *drv,
39
 
                                 struct prism2_hostapd_param *param,
40
 
                                 int len, int show_err)
41
 
{
42
 
        struct iwreq iwr;
43
 
 
44
 
        os_memset(&iwr, 0, sizeof(iwr));
45
 
        os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
46
 
        iwr.u.data.pointer = (caddr_t) param;
47
 
        iwr.u.data.length = len;
48
 
 
49
 
        if (ioctl(drv->sock, PRISM54_HOSTAPD, &iwr) < 0) {
50
 
                int ret = errno;
51
 
                if (show_err) 
52
 
                        perror("ioctl[PRISM54_HOSTAPD]");
53
 
                return ret;
54
 
        }
55
 
 
56
 
        return 0;
57
 
}
58
 
 
59
 
 
60
 
static int wpa_driver_prism54_set_wpa_ie(struct wpa_driver_prism54_data *drv,
61
 
                                         const u8 *wpa_ie,
62
 
                                         size_t wpa_ie_len)
63
 
{
64
 
        struct prism2_hostapd_param *param;
65
 
        int res;
66
 
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN + wpa_ie_len;
67
 
        if (blen < sizeof(*param))
68
 
                blen = sizeof(*param);
69
 
 
70
 
        param = os_zalloc(blen);
71
 
        if (param == NULL)
72
 
                return -1;
73
 
        
74
 
        param->cmd = PRISM2_HOSTAPD_SET_GENERIC_ELEMENT;
75
 
        param->u.generic_elem.len = wpa_ie_len;
76
 
        os_memcpy(param->u.generic_elem.data, wpa_ie, wpa_ie_len);
77
 
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
78
 
 
79
 
        os_free(param);
80
 
 
81
 
        return res;
82
 
}
83
 
 
84
 
 
85
 
/* This is called at wpa_supplicant daemon init time */
86
 
static int wpa_driver_prism54_set_wpa(void *priv, int enabled)
87
 
{
88
 
        struct wpa_driver_prism54_data *drv = priv;
89
 
        struct prism2_hostapd_param *param;
90
 
        int res;
91
 
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
92
 
        if (blen < sizeof(*param))
93
 
                blen = sizeof(*param);
94
 
 
95
 
        param = os_zalloc(blen);
96
 
        if (param == NULL)
97
 
                return -1;
98
 
 
99
 
        param->cmd = PRISM54_SET_WPA;
100
 
        param->u.generic_elem.len = 0;
101
 
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
102
 
 
103
 
        os_free(param);
104
 
 
105
 
        return res;
106
 
}
107
 
 
108
 
 
109
 
static int wpa_driver_prism54_set_key(void *priv, wpa_alg alg,
110
 
                                      const u8 *addr, int key_idx, int set_tx,
111
 
                                      const u8 *seq, size_t seq_len,
112
 
                                      const u8 *key, size_t key_len)
113
 
{
114
 
        struct wpa_driver_prism54_data *drv = priv;
115
 
        struct prism2_hostapd_param *param;
116
 
        u8 *buf;
117
 
        size_t blen;
118
 
        int ret = 0;
119
 
        char *alg_name;
120
 
 
121
 
        switch (alg) {
122
 
        case WPA_ALG_NONE:
123
 
                alg_name = "none";
124
 
                return -1;
125
 
                break;
126
 
        case WPA_ALG_WEP:
127
 
                alg_name = "WEP";
128
 
                return -1;
129
 
                break;
130
 
        case WPA_ALG_TKIP:
131
 
                alg_name = "TKIP";
132
 
                break;
133
 
        case WPA_ALG_CCMP:
134
 
                alg_name = "CCMP";
135
 
                return -1;
136
 
                break;
137
 
        default:
138
 
                return -1;
139
 
        }
140
 
 
141
 
        wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
142
 
                   "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
143
 
                   (unsigned long) seq_len, (unsigned long) key_len);
144
 
 
145
 
        if (seq_len > 8)
146
 
                return -2;
147
 
 
148
 
        blen = sizeof(*param) + key_len;
149
 
        buf = os_zalloc(blen);
150
 
        if (buf == NULL)
151
 
                return -1;
152
 
 
153
 
        param = (struct prism2_hostapd_param *) buf;
154
 
        param->cmd = PRISM2_SET_ENCRYPTION;
155
 
        /* TODO: In theory, STA in client mode can use five keys; four default
156
 
         * keys for receiving (with keyidx 0..3) and one individual key for
157
 
         * both transmitting and receiving (keyidx 0) _unicast_ packets. Now,
158
 
         * keyidx 0 is reserved for this unicast use and default keys can only
159
 
         * use keyidx 1..3 (i.e., default key with keyidx 0 is not supported).
160
 
         * This should be fine for more or less all cases, but for completeness
161
 
         * sake, the driver could be enhanced to support the missing key. */
162
 
#if 0
163
 
        if (addr == NULL)
164
 
                os_memset(param->sta_addr, 0xff, ETH_ALEN);
165
 
        else
166
 
                os_memcpy(param->sta_addr, addr, ETH_ALEN);
167
 
#else
168
 
        os_memset(param->sta_addr, 0xff, ETH_ALEN);
169
 
#endif
170
 
        os_strlcpy((char *) param->u.crypt.alg, alg_name,
171
 
                   HOSTAP_CRYPT_ALG_NAME_LEN);
172
 
        param->u.crypt.flags = set_tx ? HOSTAP_CRYPT_FLAG_SET_TX_KEY : 0;
173
 
        param->u.crypt.idx = key_idx;
174
 
        os_memcpy(param->u.crypt.seq, seq, seq_len);
175
 
        param->u.crypt.key_len = key_len;
176
 
        os_memcpy((u8 *) (param + 1), key, key_len);
177
 
 
178
 
        if (hostapd_ioctl_prism54(drv, param, blen, 1)) {
179
 
                wpa_printf(MSG_WARNING, "Failed to set encryption.");
180
 
                show_set_key_error(param);
181
 
                ret = -1;
182
 
        }
183
 
        os_free(buf);
184
 
 
185
 
        return ret;
186
 
}
187
 
 
188
 
 
189
 
static int wpa_driver_prism54_set_countermeasures(void *priv,
190
 
                                                 int enabled)
191
 
{
192
 
        /* FIX */
193
 
        printf("wpa_driver_prism54_set_countermeasures - not yet "
194
 
               "implemented\n");
195
 
        return 0;
196
 
}
197
 
 
198
 
 
199
 
static int wpa_driver_prism54_set_drop_unencrypted(void *priv,
200
 
                                                  int enabled)
201
 
{
202
 
        struct wpa_driver_prism54_data *drv = priv;
203
 
        struct prism2_hostapd_param *param;
204
 
        int res;
205
 
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
206
 
        if (blen < sizeof(*param))
207
 
                blen = sizeof(*param);
208
 
 
209
 
        param = os_zalloc(blen);
210
 
        if (param == NULL)
211
 
                return -1;
212
 
 
213
 
        param->cmd = PRISM54_DROP_UNENCRYPTED;
214
 
        param->u.generic_elem.len = 0;
215
 
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
216
 
 
217
 
        os_free(param);
218
 
 
219
 
        return res;
220
 
}
221
 
 
222
 
 
223
 
static int wpa_driver_prism54_deauthenticate(void *priv, const u8 *addr,
224
 
                                             int reason_code)
225
 
{
226
 
        /* FIX */
227
 
        printf("wpa_driver_prism54_deauthenticate - not yet implemented\n");
228
 
        return 0;
229
 
}
230
 
 
231
 
 
232
 
static int wpa_driver_prism54_disassociate(void *priv, const u8 *addr,
233
 
                                           int reason_code)
234
 
{
235
 
        /* FIX */
236
 
        printf("wpa_driver_prism54_disassociate - not yet implemented\n");
237
 
        return 0;
238
 
}
239
 
 
240
 
 
241
 
static int
242
 
wpa_driver_prism54_associate(void *priv,
243
 
                             struct wpa_driver_associate_params *params)
244
 
{
245
 
        struct wpa_driver_prism54_data *drv = priv;
246
 
        int ret = 0;
247
 
 
248
 
        if (wpa_driver_prism54_set_wpa_ie(drv, params->wpa_ie,
249
 
                                          params->wpa_ie_len) < 0)
250
 
                ret = -1;
251
 
        if (wpa_driver_wext_set_freq(drv->wext, params->freq) < 0)
252
 
                ret = -1;
253
 
        if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
254
 
                                     params->ssid_len) < 0)
255
 
                ret = -1;
256
 
        if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0)
257
 
                ret = -1;
258
 
 
259
 
        return ret;
260
 
}
261
 
 
262
 
static void show_set_key_error(struct prism2_hostapd_param *param)
263
 
{
264
 
        switch (param->u.crypt.err) {
265
 
        case HOSTAP_CRYPT_ERR_UNKNOWN_ALG:
266
 
                wpa_printf(MSG_INFO, "Unknown algorithm '%s'.",
267
 
                           param->u.crypt.alg);
268
 
                wpa_printf(MSG_INFO, "You may need to load kernel module to "
269
 
                           "register that algorithm.");
270
 
                wpa_printf(MSG_INFO, "E.g., 'modprobe hostap_crypt_wep' for "
271
 
                           "WEP.");
272
 
                break;
273
 
        case HOSTAP_CRYPT_ERR_UNKNOWN_ADDR:
274
 
                wpa_printf(MSG_INFO, "Unknown address " MACSTR ".",
275
 
                           MAC2STR(param->sta_addr));
276
 
                break;
277
 
        case HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED:
278
 
                wpa_printf(MSG_INFO, "Crypt algorithm initialization failed.");
279
 
                break;
280
 
        case HOSTAP_CRYPT_ERR_KEY_SET_FAILED:
281
 
                wpa_printf(MSG_INFO, "Key setting failed.");
282
 
                break;
283
 
        case HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED:
284
 
                wpa_printf(MSG_INFO, "TX key index setting failed.");
285
 
                break;
286
 
        case HOSTAP_CRYPT_ERR_CARD_CONF_FAILED:
287
 
                wpa_printf(MSG_INFO, "Card configuration failed.");
288
 
                break;
289
 
        }
290
 
}
291
 
 
292
 
 
293
 
static int wpa_driver_prism54_get_bssid(void *priv, u8 *bssid)
294
 
{
295
 
        struct wpa_driver_prism54_data *drv = priv;
296
 
        return wpa_driver_wext_get_bssid(drv->wext, bssid);
297
 
}
298
 
 
299
 
 
300
 
static int wpa_driver_prism54_get_ssid(void *priv, u8 *ssid)
301
 
{
302
 
        struct wpa_driver_prism54_data *drv = priv;
303
 
        return wpa_driver_wext_get_ssid(drv->wext, ssid);
304
 
}
305
 
 
306
 
 
307
 
static int wpa_driver_prism54_scan(void *priv, const u8 *ssid, size_t ssid_len)
308
 
{
309
 
        struct wpa_driver_prism54_data *drv = priv;
310
 
        return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
311
 
}
312
 
 
313
 
 
314
 
static int wpa_driver_prism54_get_scan_results(void *priv,
315
 
                                            struct wpa_scan_result *results,
316
 
                                            size_t max_size)
317
 
{
318
 
        struct wpa_driver_prism54_data *drv = priv;
319
 
        return wpa_driver_wext_get_scan_results(drv->wext, results, max_size);
320
 
}
321
 
 
322
 
 
323
 
static int wpa_driver_prism54_set_operstate(void *priv, int state)
324
 
{
325
 
        struct wpa_driver_prism54_data *drv = priv;
326
 
        return wpa_driver_wext_set_operstate(drv->wext, state);
327
 
}
328
 
 
329
 
 
330
 
static void * wpa_driver_prism54_init(void *ctx, const char *ifname)
331
 
{
332
 
        struct wpa_driver_prism54_data *drv;
333
 
 
334
 
        drv = os_zalloc(sizeof(*drv));
335
 
        if (drv == NULL)
336
 
                return NULL;
337
 
        drv->wext = wpa_driver_wext_init(ctx, ifname);
338
 
        if (drv->wext == NULL) {
339
 
                os_free(drv);
340
 
                return NULL;
341
 
        }
342
 
 
343
 
        drv->ctx = ctx;
344
 
        os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
345
 
        drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
346
 
        if (drv->sock < 0) {
347
 
                wpa_driver_wext_deinit(drv->wext);
348
 
                os_free(drv);
349
 
                return NULL;
350
 
        }
351
 
 
352
 
        return drv;
353
 
}
354
 
 
355
 
 
356
 
static void wpa_driver_prism54_deinit(void *priv)
357
 
{
358
 
        struct wpa_driver_prism54_data *drv = priv;
359
 
        wpa_driver_wext_deinit(drv->wext);
360
 
        close(drv->sock);
361
 
        os_free(drv);
362
 
}
363
 
 
364
 
 
365
 
const struct wpa_driver_ops wpa_driver_prism54_ops = {
366
 
        .name = "prism54",
367
 
        .desc = "Prism54.org driver (Intersil Prism GT/Duette/Indigo)",
368
 
        .get_bssid = wpa_driver_prism54_get_bssid,
369
 
        .get_ssid = wpa_driver_prism54_get_ssid,
370
 
        .set_wpa = wpa_driver_prism54_set_wpa,
371
 
        .set_key = wpa_driver_prism54_set_key,
372
 
        .set_countermeasures = wpa_driver_prism54_set_countermeasures,
373
 
        .set_drop_unencrypted = wpa_driver_prism54_set_drop_unencrypted,
374
 
        .scan = wpa_driver_prism54_scan,
375
 
        .get_scan_results = wpa_driver_prism54_get_scan_results,
376
 
        .deauthenticate = wpa_driver_prism54_deauthenticate,
377
 
        .disassociate = wpa_driver_prism54_disassociate,
378
 
        .associate = wpa_driver_prism54_associate,
379
 
        .init = wpa_driver_prism54_init,
380
 
        .deinit = wpa_driver_prism54_deinit,
381
 
        .set_operstate = wpa_driver_prism54_set_operstate,
382
 
};