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  • 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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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
#include "l2_packet.h"
 
25
#include "wpa_supplicant.h"
 
26
 
 
27
struct wpa_driver_prism54_data {
 
28
        void *wext; /* private data for driver_wext */
 
29
        void *ctx;
 
30
        char ifname[IFNAMSIZ + 1];
 
31
        int sock;
 
32
};
 
33
 
 
34
#define PRISM54_SET_WPA                 SIOCIWFIRSTPRIV+12
 
35
#define PRISM54_HOSTAPD                 SIOCIWFIRSTPRIV+25
 
36
#define PRISM54_DROP_UNENCRYPTED        SIOCIWFIRSTPRIV+26
 
37
 
 
38
static void show_set_key_error(struct prism2_hostapd_param *);
 
39
 
 
40
static int hostapd_ioctl_prism54(struct wpa_driver_prism54_data *drv,
 
41
                                 struct prism2_hostapd_param *param,
 
42
                                 int len, int show_err)
 
43
{
 
44
        struct iwreq iwr;
 
45
 
 
46
        os_memset(&iwr, 0, sizeof(iwr));
 
47
        os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 
48
        iwr.u.data.pointer = (caddr_t) param;
 
49
        iwr.u.data.length = len;
 
50
 
 
51
        if (ioctl(drv->sock, PRISM54_HOSTAPD, &iwr) < 0) {
 
52
                int ret = errno;
 
53
                if (show_err) 
 
54
                        perror("ioctl[PRISM54_HOSTAPD]");
 
55
                return ret;
 
56
        }
 
57
 
 
58
        return 0;
 
59
}
 
60
 
 
61
 
 
62
static int wpa_driver_prism54_set_wpa_ie(struct wpa_driver_prism54_data *drv,
 
63
                                         const u8 *wpa_ie,
 
64
                                         size_t wpa_ie_len)
 
65
{
 
66
        struct prism2_hostapd_param *param;
 
67
        int res;
 
68
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN + wpa_ie_len;
 
69
        if (blen < sizeof(*param))
 
70
                blen = sizeof(*param);
 
71
 
 
72
        param = os_zalloc(blen);
 
73
        if (param == NULL)
 
74
                return -1;
 
75
        
 
76
        param->cmd = PRISM2_HOSTAPD_SET_GENERIC_ELEMENT;
 
77
        param->u.generic_elem.len = wpa_ie_len;
 
78
        os_memcpy(param->u.generic_elem.data, wpa_ie, wpa_ie_len);
 
79
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
 
80
 
 
81
        os_free(param);
 
82
 
 
83
        return res;
 
84
}
 
85
 
 
86
 
 
87
/* This is called at wpa_supplicant daemon init time */
 
88
static int wpa_driver_prism54_set_wpa(void *priv, int enabled)
 
89
{
 
90
        struct wpa_driver_prism54_data *drv = priv;
 
91
        struct prism2_hostapd_param *param;
 
92
        int res;
 
93
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
 
94
        if (blen < sizeof(*param))
 
95
                blen = sizeof(*param);
 
96
 
 
97
        param = os_zalloc(blen);
 
98
        if (param == NULL)
 
99
                return -1;
 
100
 
 
101
        param->cmd = PRISM54_SET_WPA;
 
102
        param->u.generic_elem.len = 0;
 
103
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
 
104
 
 
105
        os_free(param);
 
106
 
 
107
        return res;
 
108
}
 
109
 
 
110
 
 
111
static int wpa_driver_prism54_set_key(void *priv, wpa_alg alg,
 
112
                                      const u8 *addr, int key_idx, int set_tx,
 
113
                                      const u8 *seq, size_t seq_len,
 
114
                                      const u8 *key, size_t key_len)
 
115
{
 
116
        struct wpa_driver_prism54_data *drv = priv;
 
117
        struct prism2_hostapd_param *param;
 
118
        u8 *buf;
 
119
        size_t blen;
 
120
        int ret = 0;
 
121
        char *alg_name;
 
122
 
 
123
        switch (alg) {
 
124
        case WPA_ALG_NONE:
 
125
                alg_name = "none";
 
126
                return -1;
 
127
                break;
 
128
        case WPA_ALG_WEP:
 
129
                alg_name = "WEP";
 
130
                return -1;
 
131
                break;
 
132
        case WPA_ALG_TKIP:
 
133
                alg_name = "TKIP";
 
134
                break;
 
135
        case WPA_ALG_CCMP:
 
136
                alg_name = "CCMP";
 
137
                return -1;
 
138
                break;
 
139
        default:
 
140
                return -1;
 
141
        }
 
142
 
 
143
        wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
 
144
                   "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
 
145
                   (unsigned long) seq_len, (unsigned long) key_len);
 
146
 
 
147
        if (seq_len > 8)
 
148
                return -2;
 
149
 
 
150
        blen = sizeof(*param) + key_len;
 
151
        buf = os_zalloc(blen);
 
152
        if (buf == NULL)
 
153
                return -1;
 
154
 
 
155
        param = (struct prism2_hostapd_param *) buf;
 
156
        param->cmd = PRISM2_SET_ENCRYPTION;
 
157
        /* TODO: In theory, STA in client mode can use five keys; four default
 
158
         * keys for receiving (with keyidx 0..3) and one individual key for
 
159
         * both transmitting and receiving (keyidx 0) _unicast_ packets. Now,
 
160
         * keyidx 0 is reserved for this unicast use and default keys can only
 
161
         * use keyidx 1..3 (i.e., default key with keyidx 0 is not supported).
 
162
         * This should be fine for more or less all cases, but for completeness
 
163
         * sake, the driver could be enhanced to support the missing key. */
 
164
#if 0
 
165
        if (addr == NULL)
 
166
                os_memset(param->sta_addr, 0xff, ETH_ALEN);
 
167
        else
 
168
                os_memcpy(param->sta_addr, addr, ETH_ALEN);
 
169
#else
 
170
        os_memset(param->sta_addr, 0xff, ETH_ALEN);
 
171
#endif
 
172
        os_strncpy((char *) param->u.crypt.alg, alg_name,
 
173
                   HOSTAP_CRYPT_ALG_NAME_LEN);
 
174
        param->u.crypt.flags = set_tx ? HOSTAP_CRYPT_FLAG_SET_TX_KEY : 0;
 
175
        param->u.crypt.idx = key_idx;
 
176
        os_memcpy(param->u.crypt.seq, seq, seq_len);
 
177
        param->u.crypt.key_len = key_len;
 
178
        os_memcpy((u8 *) (param + 1), key, key_len);
 
179
 
 
180
        if (hostapd_ioctl_prism54(drv, param, blen, 1)) {
 
181
                wpa_printf(MSG_WARNING, "Failed to set encryption.");
 
182
                show_set_key_error(param);
 
183
                ret = -1;
 
184
        }
 
185
        os_free(buf);
 
186
 
 
187
        return ret;
 
188
}
 
189
 
 
190
 
 
191
static int wpa_driver_prism54_set_countermeasures(void *priv,
 
192
                                                 int enabled)
 
193
{
 
194
        /* FIX */
 
195
        printf("wpa_driver_prism54_set_countermeasures - not yet "
 
196
               "implemented\n");
 
197
        return 0;
 
198
}
 
199
 
 
200
 
 
201
static int wpa_driver_prism54_set_drop_unencrypted(void *priv,
 
202
                                                  int enabled)
 
203
{
 
204
        struct wpa_driver_prism54_data *drv = priv;
 
205
        struct prism2_hostapd_param *param;
 
206
        int res;
 
207
        size_t blen = PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
 
208
        if (blen < sizeof(*param))
 
209
                blen = sizeof(*param);
 
210
 
 
211
        param = os_zalloc(blen);
 
212
        if (param == NULL)
 
213
                return -1;
 
214
 
 
215
        param->cmd = PRISM54_DROP_UNENCRYPTED;
 
216
        param->u.generic_elem.len = 0;
 
217
        res = hostapd_ioctl_prism54(drv, param, blen, 1);
 
218
 
 
219
        os_free(param);
 
220
 
 
221
        return res;
 
222
}
 
223
 
 
224
 
 
225
static int wpa_driver_prism54_deauthenticate(void *priv, const u8 *addr,
 
226
                                             int reason_code)
 
227
{
 
228
        /* FIX */
 
229
        printf("wpa_driver_prism54_deauthenticate - not yet implemented\n");
 
230
        return 0;
 
231
}
 
232
 
 
233
 
 
234
static int wpa_driver_prism54_disassociate(void *priv, const u8 *addr,
 
235
                                           int reason_code)
 
236
{
 
237
        /* FIX */
 
238
        printf("wpa_driver_prism54_disassociate - not yet implemented\n");
 
239
        return 0;
 
240
}
 
241
 
 
242
 
 
243
static int
 
244
wpa_driver_prism54_associate(void *priv,
 
245
                             struct wpa_driver_associate_params *params)
 
246
{
 
247
        struct wpa_driver_prism54_data *drv = priv;
 
248
        int ret = 0;
 
249
 
 
250
        if (wpa_driver_prism54_set_wpa_ie(drv, params->wpa_ie,
 
251
                                          params->wpa_ie_len) < 0)
 
252
                ret = -1;
 
253
        if (wpa_driver_wext_set_freq(drv->wext, params->freq) < 0)
 
254
                ret = -1;
 
255
        if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
 
256
                                     params->ssid_len) < 0)
 
257
                ret = -1;
 
258
        if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0)
 
259
                ret = -1;
 
260
 
 
261
        return ret;
 
262
}
 
263
 
 
264
static void show_set_key_error(struct prism2_hostapd_param *param)
 
265
{
 
266
        switch (param->u.crypt.err) {
 
267
        case HOSTAP_CRYPT_ERR_UNKNOWN_ALG:
 
268
                wpa_printf(MSG_INFO, "Unknown algorithm '%s'.",
 
269
                           param->u.crypt.alg);
 
270
                wpa_printf(MSG_INFO, "You may need to load kernel module to "
 
271
                           "register that algorithm.");
 
272
                wpa_printf(MSG_INFO, "E.g., 'modprobe hostap_crypt_wep' for "
 
273
                           "WEP.");
 
274
                break;
 
275
        case HOSTAP_CRYPT_ERR_UNKNOWN_ADDR:
 
276
                wpa_printf(MSG_INFO, "Unknown address " MACSTR ".",
 
277
                           MAC2STR(param->sta_addr));
 
278
                break;
 
279
        case HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED:
 
280
                wpa_printf(MSG_INFO, "Crypt algorithm initialization failed.");
 
281
                break;
 
282
        case HOSTAP_CRYPT_ERR_KEY_SET_FAILED:
 
283
                wpa_printf(MSG_INFO, "Key setting failed.");
 
284
                break;
 
285
        case HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED:
 
286
                wpa_printf(MSG_INFO, "TX key index setting failed.");
 
287
                break;
 
288
        case HOSTAP_CRYPT_ERR_CARD_CONF_FAILED:
 
289
                wpa_printf(MSG_INFO, "Card configuration failed.");
 
290
                break;
 
291
        }
 
292
}
 
293
 
 
294
 
 
295
static int wpa_driver_prism54_get_bssid(void *priv, u8 *bssid)
 
296
{
 
297
        struct wpa_driver_prism54_data *drv = priv;
 
298
        return wpa_driver_wext_get_bssid(drv->wext, bssid);
 
299
}
 
300
 
 
301
 
 
302
static int wpa_driver_prism54_get_ssid(void *priv, u8 *ssid)
 
303
{
 
304
        struct wpa_driver_prism54_data *drv = priv;
 
305
        return wpa_driver_wext_get_ssid(drv->wext, ssid);
 
306
}
 
307
 
 
308
 
 
309
static int wpa_driver_prism54_scan(void *priv, const u8 *ssid, size_t ssid_len)
 
310
{
 
311
        struct wpa_driver_prism54_data *drv = priv;
 
312
        return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
 
313
}
 
314
 
 
315
 
 
316
static int wpa_driver_prism54_get_scan_results(void *priv,
 
317
                                            struct wpa_scan_result *results,
 
318
                                            size_t max_size)
 
319
{
 
320
        struct wpa_driver_prism54_data *drv = priv;
 
321
        return wpa_driver_wext_get_scan_results(drv->wext, results, max_size);
 
322
}
 
323
 
 
324
 
 
325
static int wpa_driver_prism54_set_operstate(void *priv, int state)
 
326
{
 
327
        struct wpa_driver_prism54_data *drv = priv;
 
328
        return wpa_driver_wext_set_operstate(drv->wext, state);
 
329
}
 
330
 
 
331
 
 
332
static void * wpa_driver_prism54_init(void *ctx, const char *ifname)
 
333
{
 
334
        struct wpa_driver_prism54_data *drv;
 
335
 
 
336
        drv = os_zalloc(sizeof(*drv));
 
337
        if (drv == NULL)
 
338
                return NULL;
 
339
        drv->wext = wpa_driver_wext_init(ctx, ifname);
 
340
        if (drv->wext == NULL) {
 
341
                os_free(drv);
 
342
                return NULL;
 
343
        }
 
344
 
 
345
        drv->ctx = ctx;
 
346
        os_strncpy(drv->ifname, ifname, sizeof(drv->ifname));
 
347
        drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
 
348
        if (drv->sock < 0) {
 
349
                wpa_driver_wext_deinit(drv->wext);
 
350
                os_free(drv);
 
351
                return NULL;
 
352
        }
 
353
 
 
354
        return drv;
 
355
}
 
356
 
 
357
 
 
358
static void wpa_driver_prism54_deinit(void *priv)
 
359
{
 
360
        struct wpa_driver_prism54_data *drv = priv;
 
361
        wpa_driver_wext_deinit(drv->wext);
 
362
        close(drv->sock);
 
363
        os_free(drv);
 
364
}
 
365
 
 
366
 
 
367
const struct wpa_driver_ops wpa_driver_prism54_ops = {
 
368
        .name = "prism54",
 
369
        .desc = "Prism54.org driver (Intersil Prism GT/Duette/Indigo)",
 
370
        .get_bssid = wpa_driver_prism54_get_bssid,
 
371
        .get_ssid = wpa_driver_prism54_get_ssid,
 
372
        .set_wpa = wpa_driver_prism54_set_wpa,
 
373
        .set_key = wpa_driver_prism54_set_key,
 
374
        .set_countermeasures = wpa_driver_prism54_set_countermeasures,
 
375
        .set_drop_unencrypted = wpa_driver_prism54_set_drop_unencrypted,
 
376
        .scan = wpa_driver_prism54_scan,
 
377
        .get_scan_results = wpa_driver_prism54_get_scan_results,
 
378
        .deauthenticate = wpa_driver_prism54_deauthenticate,
 
379
        .disassociate = wpa_driver_prism54_disassociate,
 
380
        .associate = wpa_driver_prism54_associate,
 
381
        .init = wpa_driver_prism54_init,
 
382
        .deinit = wpa_driver_prism54_deinit,
 
383
        .set_operstate = wpa_driver_prism54_set_operstate,
 
384
};