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sched: make early bootup sched_clock() use safer
[wrt350n-kernel.git] / drivers / net / ps3_gelic_wireless.c
blob750d2a99cb4fd2ca4591091b8645ded4d8a1fc67
1 /*
2 * PS3 gelic network driver.
3 *
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2007 Sony Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #undef DEBUG
21
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/if_vlan.h>
28
29 #include <linux/in.h>
30 #include <linux/ip.h>
31 #include <linux/tcp.h>
32 #include <linux/wireless.h>
33 #include <linux/ctype.h>
34 #include <linux/string.h>
35 #include <net/iw_handler.h>
36 #include <net/ieee80211.h>
37
38 #include <linux/dma-mapping.h>
39 #include <net/checksum.h>
40 #include <asm/firmware.h>
41 #include <asm/ps3.h>
42 #include <asm/lv1call.h>
43
44 #include "ps3_gelic_net.h"
45 #include "ps3_gelic_wireless.h"
46
47
48 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan);
49 static int gelic_wl_try_associate(struct net_device *netdev);
50
51 /*
52 * tables
53 */
54
55 /* 802.11b/g channel to freq in MHz */
56 static const int channel_freq[] = {
57 2412, 2417, 2422, 2427, 2432,
58 2437, 2442, 2447, 2452, 2457,
59 2462, 2467, 2472, 2484
60 };
61 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
62
63 /* in bps */
64 static const int bitrate_list[] = {
65 1000000,
66 2000000,
67 5500000,
68 11000000,
69 6000000,
70 9000000,
71 12000000,
72 18000000,
73 24000000,
74 36000000,
75 48000000,
76 54000000
77 };
78 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
79
80 /*
81 * wpa2 support requires the hypervisor version 2.0 or later
82 */
83 static inline int wpa2_capable(void)
84 {
85 return (0 <= ps3_compare_firmware_version(2, 0, 0));
86 }
87
88 static inline int precise_ie(void)
89 {
90 return 0; /* FIXME */
91 }
92 /*
93 * post_eurus_cmd helpers
94 */
95 struct eurus_cmd_arg_info {
96 int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
97 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
98 };
99
100 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
101 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
102 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
103 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
104 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
105 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
106 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
107 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
108 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
109 };
110
111 #ifdef DEBUG
112 static const char *cmdstr(enum gelic_eurus_command ix)
113 {
114 switch (ix) {
115 case GELIC_EURUS_CMD_ASSOC:
116 return "ASSOC";
117 case GELIC_EURUS_CMD_DISASSOC:
118 return "DISASSOC";
119 case GELIC_EURUS_CMD_START_SCAN:
120 return "SCAN";
121 case GELIC_EURUS_CMD_GET_SCAN:
122 return "GET SCAN";
123 case GELIC_EURUS_CMD_SET_COMMON_CFG:
124 return "SET_COMMON_CFG";
125 case GELIC_EURUS_CMD_GET_COMMON_CFG:
126 return "GET_COMMON_CFG";
127 case GELIC_EURUS_CMD_SET_WEP_CFG:
128 return "SET_WEP_CFG";
129 case GELIC_EURUS_CMD_GET_WEP_CFG:
130 return "GET_WEP_CFG";
131 case GELIC_EURUS_CMD_SET_WPA_CFG:
132 return "SET_WPA_CFG";
133 case GELIC_EURUS_CMD_GET_WPA_CFG:
134 return "GET_WPA_CFG";
135 case GELIC_EURUS_CMD_GET_RSSI_CFG:
136 return "GET_RSSI";
137 default:
138 break;
139 }
140 return "";
141 };
142 #else
143 static inline const char *cmdstr(enum gelic_eurus_command ix)
144 {
145 return "";
146 }
147 #endif
148
149 /* synchronously do eurus commands */
150 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
151 {
152 struct gelic_eurus_cmd *cmd;
153 struct gelic_card *card;
154 struct gelic_wl_info *wl;
155
156 u64 arg1, arg2;
157
158 pr_debug("%s: <-\n", __func__);
159 cmd = container_of(work, struct gelic_eurus_cmd, work);
160 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
161 cmd_info[cmd->cmd].post_arg);
162 wl = cmd->wl;
163 card = port_to_card(wl_port(wl));
164
165 if (cmd_info[cmd->cmd].pre_arg) {
166 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
167 arg2 = cmd->buf_size;
168 } else {
169 arg1 = 0;
170 arg2 = 0;
171 }
172 init_completion(&wl->cmd_done_intr);
173 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
174 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
175 GELIC_LV1_POST_WLAN_CMD,
176 cmd->cmd, arg1, arg2,
177 &cmd->tag, &cmd->size);
178 if (cmd->status) {
179 complete(&cmd->done);
180 pr_info("%s: cmd issue failed\n", __func__);
181 return;
182 }
183
184 wait_for_completion(&wl->cmd_done_intr);
185
186 if (cmd_info[cmd->cmd].post_arg) {
187 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
188 arg2 = cmd->buf_size;
189 } else {
190 arg1 = 0;
191 arg2 = 0;
192 }
193
194 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
195 GELIC_LV1_GET_WLAN_CMD_RESULT,
196 cmd->tag, arg1, arg2,
197 &cmd->cmd_status, &cmd->size);
198 #ifdef DEBUG
199 if (cmd->status || cmd->cmd_status) {
200 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
201 cmd->tag, arg1, arg2);
202 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
203 __func__, cmd->status, cmd->cmd_status, cmd->size);
204 }
205 #endif
206 complete(&cmd->done);
207 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
208 }
209
210 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
211 unsigned int eurus_cmd,
212 void *buffer,
213 unsigned int buf_size)
214 {
215 struct gelic_eurus_cmd *cmd;
216
217 /* allocate cmd */
218 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
219 if (!cmd)
220 return NULL;
221
222 /* initialize members */
223 cmd->cmd = eurus_cmd;
224 cmd->buffer = buffer;
225 cmd->buf_size = buf_size;
226 cmd->wl = wl;
227 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
228 init_completion(&cmd->done);
229 queue_work(wl->eurus_cmd_queue, &cmd->work);
230
231 /* wait for command completion */
232 wait_for_completion(&cmd->done);
233
234 return cmd;
235 }
236
237 static u32 gelic_wl_get_link(struct net_device *netdev)
238 {
239 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
240 u32 ret;
241
242 pr_debug("%s: <-\n", __func__);
243 down(&wl->assoc_stat_lock);
244 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
245 ret = 1;
246 else
247 ret = 0;
248 up(&wl->assoc_stat_lock);
249 pr_debug("%s: ->\n", __func__);
250 return ret;
251 }
252
253 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
254 {
255 union iwreq_data data;
256
257 memset(&data, 0, sizeof(data));
258 if (bssid)
259 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
260 data.ap_addr.sa_family = ARPHRD_ETHER;
261 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
262 &data, NULL);
263 }
264
265 /*
266 * wireless extension handlers and helpers
267 */
268
269 /* SIOGIWNAME */
270 static int gelic_wl_get_name(struct net_device *dev,
271 struct iw_request_info *info,
272 union iwreq_data *iwreq, char *extra)
273 {
274 strcpy(iwreq->name, "IEEE 802.11bg");
275 return 0;
276 }
277
278 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
279 {
280 struct gelic_card *card = port_to_card(wl_port(wl));
281 u64 ch_info_raw, tmp;
282 int status;
283
284 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
285 status = lv1_net_control(bus_id(card), dev_id(card),
286 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
287 &ch_info_raw,
288 &tmp);
289 /* some fw versions may return error */
290 if (status) {
291 if (status != LV1_NO_ENTRY)
292 pr_info("%s: available ch unknown\n", __func__);
293 wl->ch_info = 0x07ff;/* 11 ch */
294 } else
295 /* 16 bits of MSB has available channels */
296 wl->ch_info = ch_info_raw >> 48;
297 }
298 return;
299 }
300
301 /* SIOGIWRANGE */
302 static int gelic_wl_get_range(struct net_device *netdev,
303 struct iw_request_info *info,
304 union iwreq_data *iwreq, char *extra)
305 {
306 struct iw_point *point = &iwreq->data;
307 struct iw_range *range = (struct iw_range *)extra;
308 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
309 unsigned int i, chs;
310
311 pr_debug("%s: <-\n", __func__);
312 point->length = sizeof(struct iw_range);
313 memset(range, 0, sizeof(struct iw_range));
314
315 range->we_version_compiled = WIRELESS_EXT;
316 range->we_version_source = 22;
317
318 /* available channels and frequencies */
319 gelic_wl_get_ch_info(wl);
320
321 for (i = 0, chs = 0;
322 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
323 if (wl->ch_info & (1 << i)) {
324 range->freq[chs].i = i + 1;
325 range->freq[chs].m = channel_freq[i];
326 range->freq[chs].e = 6;
327 chs++;
328 }
329 range->num_frequency = chs;
330 range->old_num_frequency = chs;
331 range->num_channels = chs;
332 range->old_num_channels = chs;
333
334 /* bitrates */
335 for (i = 0; i < NUM_BITRATES; i++)
336 range->bitrate[i] = bitrate_list[i];
337 range->num_bitrates = i;
338
339 /* signal levels */
340 range->max_qual.qual = 100; /* relative value */
341 range->max_qual.level = 100;
342 range->avg_qual.qual = 50;
343 range->avg_qual.level = 50;
344 range->sensitivity = 0;
345
346 /* Event capability */
347 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
348 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
349 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
350
351 /* encryption capability */
352 range->enc_capa = IW_ENC_CAPA_WPA |
353 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
354 if (wpa2_capable())
355 range->enc_capa |= IW_ENC_CAPA_WPA2;
356 range->encoding_size[0] = 5; /* 40bit WEP */
357 range->encoding_size[1] = 13; /* 104bit WEP */
358 range->encoding_size[2] = 32; /* WPA-PSK */
359 range->num_encoding_sizes = 3;
360 range->max_encoding_tokens = GELIC_WEP_KEYS;
361
362 pr_debug("%s: ->\n", __func__);
363 return 0;
364
365 }
366
367 /* SIOC{G,S}IWSCAN */
368 static int gelic_wl_set_scan(struct net_device *netdev,
369 struct iw_request_info *info,
370 union iwreq_data *wrqu, char *extra)
371 {
372 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
373
374 return gelic_wl_start_scan(wl, 1);
375 }
376
377 #define OUI_LEN 3
378 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
379 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
380
381 /*
382 * synthesize WPA/RSN IE data
383 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
384 * for the format
385 */
386 static size_t gelic_wl_synthesize_ie(u8 *buf,
387 struct gelic_eurus_scan_info *scan)
388 {
389
390 const u8 *oui_header;
391 u8 *start = buf;
392 int rsn;
393 int ccmp;
394
395 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
396 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
397 case GELIC_EURUS_SCAN_SEC_WPA:
398 rsn = 0;
399 break;
400 case GELIC_EURUS_SCAN_SEC_WPA2:
401 rsn = 1;
402 break;
403 default:
404 /* WEP or none. No IE returned */
405 return 0;
406 }
407
408 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
409 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
410 ccmp = 0;
411 break;
412 case GELIC_EURUS_SCAN_SEC_WPA_AES:
413 ccmp = 1;
414 break;
415 default:
416 if (rsn) {
417 ccmp = 1;
418 pr_info("%s: no cipher info. defaulted to CCMP\n",
419 __func__);
420 } else {
421 ccmp = 0;
422 pr_info("%s: no cipher info. defaulted to TKIP\n",
423 __func__);
424 }
425 }
426
427 if (rsn)
428 oui_header = rsn_oui;
429 else
430 oui_header = wpa_oui;
431
432 /* element id */
433 if (rsn)
434 *buf++ = MFIE_TYPE_RSN;
435 else
436 *buf++ = MFIE_TYPE_GENERIC;
437
438 /* length filed; set later */
439 buf++;
440
441 /* wpa special header */
442 if (!rsn) {
443 memcpy(buf, wpa_oui, OUI_LEN);
444 buf += OUI_LEN;
445 *buf++ = 0x01;
446 }
447
448 /* version */
449 *buf++ = 0x01; /* version 1.0 */
450 *buf++ = 0x00;
451
452 /* group cipher */
453 memcpy(buf, oui_header, OUI_LEN);
454 buf += OUI_LEN;
455
456 if (ccmp)
457 *buf++ = 0x04; /* CCMP */
458 else
459 *buf++ = 0x02; /* TKIP */
460
461 /* pairwise key count always 1 */
462 *buf++ = 0x01;
463 *buf++ = 0x00;
464
465 /* pairwise key suit */
466 memcpy(buf, oui_header, OUI_LEN);
467 buf += OUI_LEN;
468 if (ccmp)
469 *buf++ = 0x04; /* CCMP */
470 else
471 *buf++ = 0x02; /* TKIP */
472
473 /* AKM count is 1 */
474 *buf++ = 0x01;
475 *buf++ = 0x00;
476
477 /* AKM suite is assumed as PSK*/
478 memcpy(buf, oui_header, OUI_LEN);
479 buf += OUI_LEN;
480 *buf++ = 0x02; /* PSK */
481
482 /* RSN capabilities is 0 */
483 *buf++ = 0x00;
484 *buf++ = 0x00;
485
486 /* set length field */
487 start[1] = (buf - start - 2);
488
489 pr_debug("%s: ->\n", __func__);
490 return (buf - start);
491 }
492
493 struct ie_item {
494 u8 *data;
495 u8 len;
496 };
497
498 struct ie_info {
499 struct ie_item wpa;
500 struct ie_item rsn;
501 };
502
503 static void gelic_wl_parse_ie(u8 *data, size_t len,
504 struct ie_info *ie_info)
505 {
506 size_t data_left = len;
507 u8 *pos = data;
508 u8 item_len;
509 u8 item_id;
510
511 pr_debug("%s: data=%p len=%ld \n", __func__,
512 data, len);
513 memset(ie_info, 0, sizeof(struct ie_info));
514
515 while (0 < data_left) {
516 item_id = *pos++;
517 item_len = *pos++;
518
519 switch (item_id) {
520 case MFIE_TYPE_GENERIC:
521 if (!memcmp(pos, wpa_oui, OUI_LEN) &&
522 pos[OUI_LEN] == 0x01) {
523 ie_info->wpa.data = pos - 2;
524 ie_info->wpa.len = item_len + 2;
525 }
526 break;
527 case MFIE_TYPE_RSN:
528 ie_info->rsn.data = pos - 2;
529 /* length includes the header */
530 ie_info->rsn.len = item_len + 2;
531 break;
532 default:
533 pr_debug("%s: ignore %#x,%d\n", __func__,
534 item_id, item_len);
535 break;
536 }
537 pos += item_len;
538 data_left -= item_len + 2;
539 }
540 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
541 ie_info->wpa.data, ie_info->wpa.len,
542 ie_info->rsn.data, ie_info->rsn.len);
543 }
544
545
546 /*
547 * translate the scan informations from hypervisor to a
548 * independent format
549 */
550 static char *gelic_wl_translate_scan(struct net_device *netdev,
551 char *ev,
552 char *stop,
553 struct gelic_wl_scan_info *network)
554 {
555 struct iw_event iwe;
556 struct gelic_eurus_scan_info *scan = network->hwinfo;
557 char *tmp;
558 u8 rate;
559 unsigned int i, j, len;
560 u8 buf[MAX_WPA_IE_LEN];
561
562 pr_debug("%s: <-\n", __func__);
563
564 /* first entry should be AP's mac address */
565 iwe.cmd = SIOCGIWAP;
566 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
567 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
568 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_ADDR_LEN);
569
570 /* ESSID */
571 iwe.cmd = SIOCGIWESSID;
572 iwe.u.data.flags = 1;
573 iwe.u.data.length = strnlen(scan->essid, 32);
574 ev = iwe_stream_add_point(ev, stop, &iwe, scan->essid);
575
576 /* FREQUENCY */
577 iwe.cmd = SIOCGIWFREQ;
578 iwe.u.freq.m = be16_to_cpu(scan->channel);
579 iwe.u.freq.e = 0; /* table value in MHz */
580 iwe.u.freq.i = 0;
581 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_FREQ_LEN);
582
583 /* RATES */
584 iwe.cmd = SIOCGIWRATE;
585 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
586 /* to stuff multiple values in one event */
587 tmp = ev + IW_EV_LCP_LEN;
588 /* put them in ascendant order (older is first) */
589 i = 0;
590 j = 0;
591 pr_debug("%s: rates=%d rate=%d\n", __func__,
592 network->rate_len, network->rate_ext_len);
593 while (i < network->rate_len) {
594 if (j < network->rate_ext_len &&
595 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
596 rate = scan->ext_rate[j++] & 0x7f;
597 else
598 rate = scan->rate[i++] & 0x7f;
599 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
600 tmp = iwe_stream_add_value(ev, tmp, stop, &iwe,
601 IW_EV_PARAM_LEN);
602 }
603 while (j < network->rate_ext_len) {
604 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
605 tmp = iwe_stream_add_value(ev, tmp, stop, &iwe,
606 IW_EV_PARAM_LEN);
607 }
608 /* Check if we added any rate */
609 if (IW_EV_LCP_LEN < (tmp - ev))
610 ev = tmp;
611
612 /* ENCODE */
613 iwe.cmd = SIOCGIWENCODE;
614 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
615 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
616 else
617 iwe.u.data.flags = IW_ENCODE_DISABLED;
618 iwe.u.data.length = 0;
619 ev = iwe_stream_add_point(ev, stop, &iwe, scan->essid);
620
621 /* MODE */
622 iwe.cmd = SIOCGIWMODE;
623 if (be16_to_cpu(scan->capability) &
624 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
625 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
626 iwe.u.mode = IW_MODE_MASTER;
627 else
628 iwe.u.mode = IW_MODE_ADHOC;
629 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_UINT_LEN);
630 }
631
632 /* QUAL */
633 iwe.cmd = IWEVQUAL;
634 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
635 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
636 iwe.u.qual.level = be16_to_cpu(scan->rssi);
637 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
638 iwe.u.qual.noise = 0;
639 ev = iwe_stream_add_event(ev, stop, &iwe, IW_EV_QUAL_LEN);
640
641 /* RSN */
642 memset(&iwe, 0, sizeof(iwe));
643 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
644 /* If wpa[2] capable station, synthesize IE and put it */
645 len = gelic_wl_synthesize_ie(buf, scan);
646 if (len) {
647 iwe.cmd = IWEVGENIE;
648 iwe.u.data.length = len;
649 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
650 }
651 } else {
652 /* this scan info has IE data */
653 struct ie_info ie_info;
654 size_t data_len;
655
656 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
657
658 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
659
660 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
661 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
662 iwe.cmd = IWEVGENIE;
663 iwe.u.data.length = ie_info.wpa.len;
664 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
665 }
666
667 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
668 memset(&iwe, 0, sizeof(iwe));
669 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
670 iwe.cmd = IWEVGENIE;
671 iwe.u.data.length = ie_info.rsn.len;
672 ev = iwe_stream_add_point(ev, stop, &iwe, buf);
673 }
674 }
675
676 pr_debug("%s: ->\n", __func__);
677 return ev;
678 }
679
680
681 static int gelic_wl_get_scan(struct net_device *netdev,
682 struct iw_request_info *info,
683 union iwreq_data *wrqu, char *extra)
684 {
685 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
686 struct gelic_wl_scan_info *scan_info;
687 char *ev = extra;
688 char *stop = ev + wrqu->data.length;
689 int ret = 0;
690 unsigned long this_time = jiffies;
691
692 pr_debug("%s: <-\n", __func__);
693 if (down_interruptible(&wl->scan_lock))
694 return -EAGAIN;
695
696 switch (wl->scan_stat) {
697 case GELIC_WL_SCAN_STAT_SCANNING:
698 /* If a scan in progress, caller should call me again */
699 ret = -EAGAIN;
700 goto out;
701 break;
702
703 case GELIC_WL_SCAN_STAT_INIT:
704 /* last scan request failed or never issued */
705 ret = -ENODEV;
706 goto out;
707 break;
708 case GELIC_WL_SCAN_STAT_GOT_LIST:
709 /* ok, use current list */
710 break;
711 }
712
713 list_for_each_entry(scan_info, &wl->network_list, list) {
714 if (wl->scan_age == 0 ||
715 time_after(scan_info->last_scanned + wl->scan_age,
716 this_time))
717 ev = gelic_wl_translate_scan(netdev, ev, stop,
718 scan_info);
719 else
720 pr_debug("%s:entry too old\n", __func__);
721
722 if (stop - ev <= IW_EV_ADDR_LEN) {
723 ret = -E2BIG;
724 goto out;
725 }
726 }
727
728 wrqu->data.length = ev - extra;
729 wrqu->data.flags = 0;
730 out:
731 up(&wl->scan_lock);
732 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
733 return ret;
734 }
735
736 #ifdef DEBUG
737 static void scan_list_dump(struct gelic_wl_info *wl)
738 {
739 struct gelic_wl_scan_info *scan_info;
740 int i;
741 DECLARE_MAC_BUF(mac);
742
743 i = 0;
744 list_for_each_entry(scan_info, &wl->network_list, list) {
745 pr_debug("%s: item %d\n", __func__, i++);
746 pr_debug("valid=%d eurusindex=%d last=%lx\n",
747 scan_info->valid, scan_info->eurus_index,
748 scan_info->last_scanned);
749 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
750 scan_info->rate_len, scan_info->rate_ext_len,
751 scan_info->essid_len);
752 /* -- */
753 pr_debug("bssid=%s\n",
754 print_mac(mac, &scan_info->hwinfo->bssid[2]));
755 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
756 }
757 }
758 #endif
759
760 static int gelic_wl_set_auth(struct net_device *netdev,
761 struct iw_request_info *info,
762 union iwreq_data *data, char *extra)
763 {
764 struct iw_param *param = &data->param;
765 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
766 unsigned long irqflag;
767 int ret = 0;
768
769 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
770 spin_lock_irqsave(&wl->lock, irqflag);
771 switch (param->flags & IW_AUTH_INDEX) {
772 case IW_AUTH_WPA_VERSION:
773 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
774 pr_debug("%s: NO WPA selected\n", __func__);
775 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
776 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
777 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
778 }
779 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
780 pr_debug("%s: WPA version 1 selected\n", __func__);
781 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
782 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
783 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
784 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
785 }
786 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
787 /*
788 * As the hypervisor may not tell the cipher
789 * information of the AP if it is WPA2,
790 * you will not decide suitable cipher from
791 * its beacon.
792 * You should have knowledge about the AP's
793 * cipher infomation in other method prior to
794 * the association.
795 */
796 if (!precise_ie())
797 pr_info("%s: WPA2 may not work\n", __func__);
798 if (wpa2_capable()) {
799 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
800 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
801 wl->pairwise_cipher_method =
802 GELIC_WL_CIPHER_AES;
803 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
804 } else
805 ret = -EINVAL;
806 }
807 break;
808
809 case IW_AUTH_CIPHER_PAIRWISE:
810 if (param->value &
811 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
812 pr_debug("%s: WEP selected\n", __func__);
813 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
814 }
815 if (param->value & IW_AUTH_CIPHER_TKIP) {
816 pr_debug("%s: TKIP selected\n", __func__);
817 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
818 }
819 if (param->value & IW_AUTH_CIPHER_CCMP) {
820 pr_debug("%s: CCMP selected\n", __func__);
821 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
822 }
823 if (param->value & IW_AUTH_CIPHER_NONE) {
824 pr_debug("%s: no auth selected\n", __func__);
825 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
826 }
827 break;
828 case IW_AUTH_CIPHER_GROUP:
829 if (param->value &
830 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
831 pr_debug("%s: WEP selected\n", __func__);
832 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
833 }
834 if (param->value & IW_AUTH_CIPHER_TKIP) {
835 pr_debug("%s: TKIP selected\n", __func__);
836 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
837 }
838 if (param->value & IW_AUTH_CIPHER_CCMP) {
839 pr_debug("%s: CCMP selected\n", __func__);
840 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
841 }
842 if (param->value & IW_AUTH_CIPHER_NONE) {
843 pr_debug("%s: no auth selected\n", __func__);
844 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
845 }
846 break;
847 case IW_AUTH_80211_AUTH_ALG:
848 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
849 pr_debug("%s: shared key specified\n", __func__);
850 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
851 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
852 pr_debug("%s: open system specified\n", __func__);
853 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
854 } else
855 ret = -EINVAL;
856 break;
857
858 case IW_AUTH_WPA_ENABLED:
859 if (param->value) {
860 pr_debug("%s: WPA enabled\n", __func__);
861 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
862 } else {
863 pr_debug("%s: WPA disabled\n", __func__);
864 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
865 }
866 break;
867
868 case IW_AUTH_KEY_MGMT:
869 if (param->value & IW_AUTH_KEY_MGMT_PSK)
870 break;
871 /* intentionally fall through */
872 default:
873 ret = -EOPNOTSUPP;
874 break;
875 };
876
877 if (!ret)
878 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
879
880 spin_unlock_irqrestore(&wl->lock, irqflag);
881 pr_debug("%s: -> %d\n", __func__, ret);
882 return ret;
883 }
884
885 static int gelic_wl_get_auth(struct net_device *netdev,
886 struct iw_request_info *info,
887 union iwreq_data *iwreq, char *extra)
888 {
889 struct iw_param *param = &iwreq->param;
890 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
891 unsigned long irqflag;
892 int ret = 0;
893
894 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
895 spin_lock_irqsave(&wl->lock, irqflag);
896 switch (param->flags & IW_AUTH_INDEX) {
897 case IW_AUTH_WPA_VERSION:
898 switch (wl->wpa_level) {
899 case GELIC_WL_WPA_LEVEL_WPA:
900 param->value |= IW_AUTH_WPA_VERSION_WPA;
901 break;
902 case GELIC_WL_WPA_LEVEL_WPA2:
903 param->value |= IW_AUTH_WPA_VERSION_WPA2;
904 break;
905 default:
906 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
907 }
908 break;
909
910 case IW_AUTH_80211_AUTH_ALG:
911 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
912 param->value = IW_AUTH_ALG_SHARED_KEY;
913 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
914 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
915 break;
916
917 case IW_AUTH_WPA_ENABLED:
918 switch (wl->wpa_level) {
919 case GELIC_WL_WPA_LEVEL_WPA:
920 case GELIC_WL_WPA_LEVEL_WPA2:
921 param->value = 1;
922 break;
923 default:
924 param->value = 0;
925 break;
926 }
927 break;
928 default:
929 ret = -EOPNOTSUPP;
930 }
931
932 spin_unlock_irqrestore(&wl->lock, irqflag);
933 pr_debug("%s: -> %d\n", __func__, ret);
934 return ret;
935 }
936
937 /* SIOC{S,G}IWESSID */
938 static int gelic_wl_set_essid(struct net_device *netdev,
939 struct iw_request_info *info,
940 union iwreq_data *data, char *extra)
941 {
942 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
943 unsigned long irqflag;
944
945 pr_debug("%s: <- l=%d f=%d\n", __func__,
946 data->essid.length, data->essid.flags);
947 if (IW_ESSID_MAX_SIZE < data->essid.length)
948 return -EINVAL;
949
950 spin_lock_irqsave(&wl->lock, irqflag);
951 if (data->essid.flags) {
952 wl->essid_len = data->essid.length;
953 memcpy(wl->essid, extra, wl->essid_len);
954 pr_debug("%s: essid = '%s'\n", __func__, extra);
955 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
956 } else {
957 pr_debug("%s: ESSID any \n", __func__);
958 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
959 }
960 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
961 spin_unlock_irqrestore(&wl->lock, irqflag);
962
963
964 gelic_wl_try_associate(netdev); /* FIXME */
965 pr_debug("%s: -> \n", __func__);
966 return 0;
967 }
968
969 static int gelic_wl_get_essid(struct net_device *netdev,
970 struct iw_request_info *info,
971 union iwreq_data *data, char *extra)
972 {
973 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
974 unsigned long irqflag;
975
976 pr_debug("%s: <- \n", __func__);
977 down(&wl->assoc_stat_lock);
978 spin_lock_irqsave(&wl->lock, irqflag);
979 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
980 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
981 memcpy(extra, wl->essid, wl->essid_len);
982 data->essid.length = wl->essid_len;
983 data->essid.flags = 1;
984 } else
985 data->essid.flags = 0;
986
987 up(&wl->assoc_stat_lock);
988 spin_unlock_irqrestore(&wl->lock, irqflag);
989 pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
990
991 return 0;
992 }
993
994 /* SIO{S,G}IWENCODE */
995 static int gelic_wl_set_encode(struct net_device *netdev,
996 struct iw_request_info *info,
997 union iwreq_data *data, char *extra)
998 {
999 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1000 struct iw_point *enc = &data->encoding;
1001 __u16 flags;
1002 unsigned int irqflag;
1003 int key_index, index_specified;
1004 int ret = 0;
1005
1006 pr_debug("%s: <- \n", __func__);
1007 flags = enc->flags & IW_ENCODE_FLAGS;
1008 key_index = enc->flags & IW_ENCODE_INDEX;
1009
1010 pr_debug("%s: key_index = %d\n", __func__, key_index);
1011 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1012 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1013
1014 if (GELIC_WEP_KEYS < key_index)
1015 return -EINVAL;
1016
1017 spin_lock_irqsave(&wl->lock, irqflag);
1018 if (key_index) {
1019 index_specified = 1;
1020 key_index--;
1021 } else {
1022 index_specified = 0;
1023 key_index = wl->current_key;
1024 }
1025
1026 if (flags & IW_ENCODE_NOKEY) {
1027 /* if just IW_ENCODE_NOKEY, change current key index */
1028 if (!flags && index_specified) {
1029 wl->current_key = key_index;
1030 goto done;
1031 }
1032
1033 if (flags & IW_ENCODE_DISABLED) {
1034 if (!index_specified) {
1035 /* disable encryption */
1036 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1037 wl->pairwise_cipher_method =
1038 GELIC_WL_CIPHER_NONE;
1039 /* invalidate all key */
1040 wl->key_enabled = 0;
1041 } else
1042 clear_bit(key_index, &wl->key_enabled);
1043 }
1044
1045 if (flags & IW_ENCODE_OPEN)
1046 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1047 if (flags & IW_ENCODE_RESTRICTED) {
1048 pr_info("%s: shared key mode enabled\n", __func__);
1049 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1050 }
1051 } else {
1052 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1053 ret = -EINVAL;
1054 goto done;
1055 }
1056 wl->key_len[key_index] = enc->length;
1057 memcpy(wl->key[key_index], extra, enc->length);
1058 set_bit(key_index, &wl->key_enabled);
1059 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1060 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1061 }
1062 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1063 done:
1064 spin_unlock_irqrestore(&wl->lock, irqflag);
1065 pr_debug("%s: -> \n", __func__);
1066 return ret;
1067 }
1068
1069 static int gelic_wl_get_encode(struct net_device *netdev,
1070 struct iw_request_info *info,
1071 union iwreq_data *data, char *extra)
1072 {
1073 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1074 struct iw_point *enc = &data->encoding;
1075 unsigned int irqflag;
1076 unsigned int key_index, index_specified;
1077 int ret = 0;
1078
1079 pr_debug("%s: <- \n", __func__);
1080 key_index = enc->flags & IW_ENCODE_INDEX;
1081 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1082 enc->flags, enc->pointer, enc->length, extra);
1083 if (GELIC_WEP_KEYS < key_index)
1084 return -EINVAL;
1085
1086 spin_lock_irqsave(&wl->lock, irqflag);
1087 if (key_index) {
1088 index_specified = 1;
1089 key_index--;
1090 } else {
1091 index_specified = 0;
1092 key_index = wl->current_key;
1093 }
1094
1095 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1096 switch (wl->auth_method) {
1097 case GELIC_EURUS_AUTH_OPEN:
1098 enc->flags = IW_ENCODE_OPEN;
1099 break;
1100 case GELIC_EURUS_AUTH_SHARED:
1101 enc->flags = IW_ENCODE_RESTRICTED;
1102 break;
1103 }
1104 } else
1105 enc->flags = IW_ENCODE_DISABLED;
1106
1107 if (test_bit(key_index, &wl->key_enabled)) {
1108 if (enc->length < wl->key_len[key_index]) {
1109 ret = -EINVAL;
1110 goto done;
1111 }
1112 enc->length = wl->key_len[key_index];
1113 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1114 } else {
1115 enc->length = 0;
1116 enc->flags |= IW_ENCODE_NOKEY;
1117 }
1118 enc->flags |= key_index + 1;
1119 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1120 enc->flags, enc->length);
1121
1122 done:
1123 spin_unlock_irqrestore(&wl->lock, irqflag);
1124 return ret;
1125 }
1126
1127 /* SIOC{S,G}IWAP */
1128 static int gelic_wl_set_ap(struct net_device *netdev,
1129 struct iw_request_info *info,
1130 union iwreq_data *data, char *extra)
1131 {
1132 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1133 unsigned long irqflag;
1134
1135 pr_debug("%s: <-\n", __func__);
1136 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1137 return -EINVAL;
1138
1139 spin_lock_irqsave(&wl->lock, irqflag);
1140 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1141 memcpy(wl->bssid, data->ap_addr.sa_data,
1142 ETH_ALEN);
1143 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1144 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1145 pr_debug("%s: bss=%02x:%02x:%02x:%02x:%02x:%02x\n",
1146 __func__,
1147 wl->bssid[0], wl->bssid[1],
1148 wl->bssid[2], wl->bssid[3],
1149 wl->bssid[4], wl->bssid[5]);
1150 } else {
1151 pr_debug("%s: clear bssid\n", __func__);
1152 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1153 memset(wl->bssid, 0, ETH_ALEN);
1154 }
1155 spin_unlock_irqrestore(&wl->lock, irqflag);
1156 pr_debug("%s: ->\n", __func__);
1157 return 0;
1158 }
1159
1160 static int gelic_wl_get_ap(struct net_device *netdev,
1161 struct iw_request_info *info,
1162 union iwreq_data *data, char *extra)
1163 {
1164 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1165 unsigned long irqflag;
1166
1167 pr_debug("%s: <-\n", __func__);
1168 down(&wl->assoc_stat_lock);
1169 spin_lock_irqsave(&wl->lock, irqflag);
1170 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1171 data->ap_addr.sa_family = ARPHRD_ETHER;
1172 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1173 ETH_ALEN);
1174 } else
1175 memset(data->ap_addr.sa_data, 0, ETH_ALEN);
1176
1177 spin_unlock_irqrestore(&wl->lock, irqflag);
1178 up(&wl->assoc_stat_lock);
1179 pr_debug("%s: ->\n", __func__);
1180 return 0;
1181 }
1182
1183 /* SIOC{S,G}IWENCODEEXT */
1184 static int gelic_wl_set_encodeext(struct net_device *netdev,
1185 struct iw_request_info *info,
1186 union iwreq_data *data, char *extra)
1187 {
1188 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1189 struct iw_point *enc = &data->encoding;
1190 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1191 __u16 alg;
1192 __u16 flags;
1193 unsigned int irqflag;
1194 int key_index;
1195 int ret = 0;
1196
1197 pr_debug("%s: <- \n", __func__);
1198 flags = enc->flags & IW_ENCODE_FLAGS;
1199 alg = ext->alg;
1200 key_index = enc->flags & IW_ENCODE_INDEX;
1201
1202 pr_debug("%s: key_index = %d\n", __func__, key_index);
1203 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1204 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1205 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1206 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1207
1208 if (GELIC_WEP_KEYS < key_index)
1209 return -EINVAL;
1210
1211 spin_lock_irqsave(&wl->lock, irqflag);
1212 if (key_index)
1213 key_index--;
1214 else
1215 key_index = wl->current_key;
1216
1217 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1218 /* reques to change default key index */
1219 pr_debug("%s: request to change default key to %d\n",
1220 __func__, key_index);
1221 wl->current_key = key_index;
1222 goto done;
1223 }
1224
1225 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1226 pr_debug("%s: alg disabled\n", __func__);
1227 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1228 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1229 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1230 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1231 } else if (alg == IW_ENCODE_ALG_WEP) {
1232 pr_debug("%s: WEP requested\n", __func__);
1233 if (flags & IW_ENCODE_OPEN) {
1234 pr_debug("%s: open key mode\n", __func__);
1235 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1236 }
1237 if (flags & IW_ENCODE_RESTRICTED) {
1238 pr_debug("%s: shared key mode\n", __func__);
1239 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1240 }
1241 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1242 pr_info("%s: key is too long %d\n", __func__,
1243 ext->key_len);
1244 ret = -EINVAL;
1245 goto done;
1246 }
1247 /* OK, update the key */
1248 wl->key_len[key_index] = ext->key_len;
1249 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1250 memcpy(wl->key[key_index], ext->key, ext->key_len);
1251 set_bit(key_index, &wl->key_enabled);
1252 /* remember wep info changed */
1253 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1254 } else if ((alg == IW_ENCODE_ALG_TKIP) || (alg == IW_ENCODE_ALG_CCMP)) {
1255 pr_debug("%s: TKIP/CCMP requested alg=%d\n", __func__, alg);
1256 /* check key length */
1257 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1258 pr_info("%s: key is too long %d\n", __func__,
1259 ext->key_len);
1260 ret = -EINVAL;
1261 goto done;
1262 }
1263 if (alg == IW_ENCODE_ALG_CCMP) {
1264 pr_debug("%s: AES selected\n", __func__);
1265 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
1266 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
1267 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
1268 } else {
1269 pr_debug("%s: TKIP selected, WPA forced\n", __func__);
1270 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
1271 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
1272 /* FIXME: how do we do if WPA2 + TKIP? */
1273 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
1274 }
1275 if (flags & IW_ENCODE_RESTRICTED)
1276 BUG();
1277 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1278 /* We should use same key for both and unicast */
1279 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
1280 pr_debug("%s: group key \n", __func__);
1281 else
1282 pr_debug("%s: unicast key \n", __func__);
1283 /* OK, update the key */
1284 wl->key_len[key_index] = ext->key_len;
1285 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1286 memcpy(wl->key[key_index], ext->key, ext->key_len);
1287 set_bit(key_index, &wl->key_enabled);
1288 /* remember info changed */
1289 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1290 }
1291 done:
1292 spin_unlock_irqrestore(&wl->lock, irqflag);
1293 pr_debug("%s: -> \n", __func__);
1294 return ret;
1295 }
1296
1297 static int gelic_wl_get_encodeext(struct net_device *netdev,
1298 struct iw_request_info *info,
1299 union iwreq_data *data, char *extra)
1300 {
1301 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1302 struct iw_point *enc = &data->encoding;
1303 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1304 unsigned int irqflag;
1305 int key_index;
1306 int ret = 0;
1307 int max_key_len;
1308
1309 pr_debug("%s: <- \n", __func__);
1310
1311 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1312 if (max_key_len < 0)
1313 return -EINVAL;
1314 key_index = enc->flags & IW_ENCODE_INDEX;
1315
1316 pr_debug("%s: key_index = %d\n", __func__, key_index);
1317 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1318 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1319
1320 if (GELIC_WEP_KEYS < key_index)
1321 return -EINVAL;
1322
1323 spin_lock_irqsave(&wl->lock, irqflag);
1324 if (key_index)
1325 key_index--;
1326 else
1327 key_index = wl->current_key;
1328
1329 memset(ext, 0, sizeof(struct iw_encode_ext));
1330 switch (wl->group_cipher_method) {
1331 case GELIC_WL_CIPHER_WEP:
1332 ext->alg = IW_ENCODE_ALG_WEP;
1333 enc->flags |= IW_ENCODE_ENABLED;
1334 break;
1335 case GELIC_WL_CIPHER_TKIP:
1336 ext->alg = IW_ENCODE_ALG_TKIP;
1337 enc->flags |= IW_ENCODE_ENABLED;
1338 break;
1339 case GELIC_WL_CIPHER_AES:
1340 ext->alg = IW_ENCODE_ALG_CCMP;
1341 enc->flags |= IW_ENCODE_ENABLED;
1342 break;
1343 case GELIC_WL_CIPHER_NONE:
1344 default:
1345 ext->alg = IW_ENCODE_ALG_NONE;
1346 enc->flags |= IW_ENCODE_NOKEY;
1347 break;
1348 }
1349
1350 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1351 if (max_key_len < wl->key_len[key_index]) {
1352 ret = -E2BIG;
1353 goto out;
1354 }
1355 if (test_bit(key_index, &wl->key_enabled))
1356 memcpy(ext->key, wl->key[key_index],
1357 wl->key_len[key_index]);
1358 else
1359 pr_debug("%s: disabled key requested ix=%d\n",
1360 __func__, key_index);
1361 }
1362 out:
1363 spin_unlock_irqrestore(&wl->lock, irqflag);
1364 pr_debug("%s: -> \n", __func__);
1365 return ret;
1366 }
1367 /* SIOC{S,G}IWMODE */
1368 static int gelic_wl_set_mode(struct net_device *netdev,
1369 struct iw_request_info *info,
1370 union iwreq_data *data, char *extra)
1371 {
1372 __u32 mode = data->mode;
1373 int ret;
1374
1375 pr_debug("%s: <- \n", __func__);
1376 if (mode == IW_MODE_INFRA)
1377 ret = 0;
1378 else
1379 ret = -EOPNOTSUPP;
1380 pr_debug("%s: -> %d\n", __func__, ret);
1381 return ret;
1382 }
1383
1384 static int gelic_wl_get_mode(struct net_device *netdev,
1385 struct iw_request_info *info,
1386 union iwreq_data *data, char *extra)
1387 {
1388 __u32 *mode = &data->mode;
1389 pr_debug("%s: <- \n", __func__);
1390 *mode = IW_MODE_INFRA;
1391 pr_debug("%s: ->\n", __func__);
1392 return 0;
1393 }
1394
1395 /* SIOCIWFIRSTPRIV */
1396 static int hex2bin(u8 *str, u8 *bin, unsigned int len)
1397 {
1398 unsigned int i;
1399 static unsigned char *hex = "0123456789ABCDEF";
1400 unsigned char *p, *q;
1401 u8 tmp;
1402
1403 if (len != WPA_PSK_LEN * 2)
1404 return -EINVAL;
1405
1406 for (i = 0; i < WPA_PSK_LEN * 2; i += 2) {
1407 p = strchr(hex, toupper(str[i]));
1408 q = strchr(hex, toupper(str[i + 1]));
1409 if (!p || !q) {
1410 pr_info("%s: unconvertible PSK digit=%d\n",
1411 __func__, i);
1412 return -EINVAL;
1413 }
1414 tmp = ((p - hex) << 4) + (q - hex);
1415 *bin++ = tmp;
1416 }
1417 return 0;
1418 };
1419
1420 static int gelic_wl_priv_set_psk(struct net_device *net_dev,
1421 struct iw_request_info *info,
1422 union iwreq_data *data, char *extra)
1423 {
1424 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1425 unsigned int len;
1426 unsigned int irqflag;
1427 int ret = 0;
1428
1429 pr_debug("%s:<- len=%d\n", __func__, data->data.length);
1430 len = data->data.length - 1;
1431 if (len <= 2)
1432 return -EINVAL;
1433
1434 spin_lock_irqsave(&wl->lock, irqflag);
1435 if (extra[0] == '"' && extra[len - 1] == '"') {
1436 pr_debug("%s: passphrase mode\n", __func__);
1437 /* pass phrase */
1438 if (GELIC_WL_EURUS_PSK_MAX_LEN < (len - 2)) {
1439 pr_info("%s: passphrase too long\n", __func__);
1440 ret = -E2BIG;
1441 goto out;
1442 }
1443 memset(wl->psk, 0, sizeof(wl->psk));
1444 wl->psk_len = len - 2;
1445 memcpy(wl->psk, &(extra[1]), wl->psk_len);
1446 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
1447 } else {
1448 ret = hex2bin(extra, wl->psk, len);
1449 if (ret)
1450 goto out;
1451 wl->psk_len = WPA_PSK_LEN;
1452 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1453 }
1454 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1455 out:
1456 spin_unlock_irqrestore(&wl->lock, irqflag);
1457 pr_debug("%s:->\n", __func__);
1458 return ret;
1459 }
1460
1461 static int gelic_wl_priv_get_psk(struct net_device *net_dev,
1462 struct iw_request_info *info,
1463 union iwreq_data *data, char *extra)
1464 {
1465 struct gelic_wl_info *wl = port_wl(netdev_priv(net_dev));
1466 char *p;
1467 unsigned int irqflag;
1468 unsigned int i;
1469
1470 pr_debug("%s:<-\n", __func__);
1471 if (!capable(CAP_NET_ADMIN))
1472 return -EPERM;
1473
1474 spin_lock_irqsave(&wl->lock, irqflag);
1475 p = extra;
1476 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) {
1477 if (wl->psk_type == GELIC_EURUS_WPA_PSK_BIN) {
1478 for (i = 0; i < wl->psk_len; i++) {
1479 sprintf(p, "%02xu", wl->psk[i]);
1480 p += 2;
1481 }
1482 *p = '\0';
1483 data->data.length = wl->psk_len * 2;
1484 } else {
1485 *p++ = '"';
1486 memcpy(p, wl->psk, wl->psk_len);
1487 p += wl->psk_len;
1488 *p++ = '"';
1489 *p = '\0';
1490 data->data.length = wl->psk_len + 2;
1491 }
1492 } else
1493 /* no psk set */
1494 data->data.length = 0;
1495 spin_unlock_irqrestore(&wl->lock, irqflag);
1496 pr_debug("%s:-> %d\n", __func__, data->data.length);
1497 return 0;
1498 }
1499
1500 /* SIOCGIWNICKN */
1501 static int gelic_wl_get_nick(struct net_device *net_dev,
1502 struct iw_request_info *info,
1503 union iwreq_data *data, char *extra)
1504 {
1505 strcpy(extra, "gelic_wl");
1506 data->data.length = strlen(extra);
1507 data->data.flags = 1;
1508 return 0;
1509 }
1510
1511
1512 /* --- */
1513
1514 static struct iw_statistics *gelic_wl_get_wireless_stats(
1515 struct net_device *netdev)
1516 {
1517
1518 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1519 struct gelic_eurus_cmd *cmd;
1520 struct iw_statistics *is;
1521 struct gelic_eurus_rssi_info *rssi;
1522
1523 pr_debug("%s: <-\n", __func__);
1524
1525 is = &wl->iwstat;
1526 memset(is, 0, sizeof(*is));
1527 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1528 wl->buf, sizeof(*rssi));
1529 if (cmd && !cmd->status && !cmd->cmd_status) {
1530 rssi = wl->buf;
1531 is->qual.level = be16_to_cpu(rssi->rssi);
1532 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1533 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1534 } else
1535 /* not associated */
1536 is->qual.updated = IW_QUAL_ALL_INVALID;
1537
1538 kfree(cmd);
1539 pr_debug("%s: ->\n", __func__);
1540 return is;
1541 }
1542
1543 /*
1544 * scanning helpers
1545 */
1546 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan)
1547 {
1548 struct gelic_eurus_cmd *cmd;
1549 int ret = 0;
1550
1551 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1552 if (down_interruptible(&wl->scan_lock))
1553 return -ERESTARTSYS;
1554
1555 /*
1556 * If already a scan in progress, do not trigger more
1557 */
1558 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1559 pr_debug("%s: scanning now\n", __func__);
1560 goto out;
1561 }
1562
1563 init_completion(&wl->scan_done);
1564 /*
1565 * If we have already a bss list, don't try to get new
1566 */
1567 if (!always_scan && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1568 pr_debug("%s: already has the list\n", __func__);
1569 complete(&wl->scan_done);
1570 goto out;
1571 }
1572 /*
1573 * issue start scan request
1574 */
1575 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1576 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1577 NULL, 0);
1578 if (!cmd || cmd->status || cmd->cmd_status) {
1579 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1580 complete(&wl->scan_done);
1581 ret = -ENOMEM;
1582 goto out;
1583 }
1584 kfree(cmd);
1585 out:
1586 up(&wl->scan_lock);
1587 pr_debug("%s: ->\n", __func__);
1588 return ret;
1589 }
1590
1591 /*
1592 * retrieve scan result from the chip (hypervisor)
1593 * this function is invoked by schedule work.
1594 */
1595 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1596 {
1597 struct gelic_eurus_cmd *cmd = NULL;
1598 struct gelic_wl_scan_info *target, *tmp;
1599 struct gelic_wl_scan_info *oldest = NULL;
1600 struct gelic_eurus_scan_info *scan_info;
1601 unsigned int scan_info_size;
1602 union iwreq_data data;
1603 unsigned long this_time = jiffies;
1604 unsigned int data_len, i, found, r;
1605 DECLARE_MAC_BUF(mac);
1606
1607 pr_debug("%s:start\n", __func__);
1608 down(&wl->scan_lock);
1609
1610 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1611 /*
1612 * stop() may be called while scanning, ignore result
1613 */
1614 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1615 __func__, wl->scan_stat);
1616 goto out;
1617 }
1618
1619 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1620 wl->buf, PAGE_SIZE);
1621 if (!cmd || cmd->status || cmd->cmd_status) {
1622 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1623 pr_info("%s:cmd failed\n", __func__);
1624 kfree(cmd);
1625 goto out;
1626 }
1627 data_len = cmd->size;
1628 pr_debug("%s: data_len = %d\n", __func__, data_len);
1629 kfree(cmd);
1630
1631 /* OK, bss list retrieved */
1632 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1633
1634 /* mark all entries are old */
1635 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1636 target->valid = 0;
1637 /* expire too old entries */
1638 if (time_before(target->last_scanned + wl->scan_age,
1639 this_time)) {
1640 kfree(target->hwinfo);
1641 target->hwinfo = NULL;
1642 list_move_tail(&target->list, &wl->network_free_list);
1643 }
1644 }
1645
1646 /* put them in the newtork_list */
1647 scan_info = wl->buf;
1648 scan_info_size = 0;
1649 i = 0;
1650 while (scan_info_size < data_len) {
1651 pr_debug("%s:size=%d bssid=%s scan_info=%p\n", __func__,
1652 be16_to_cpu(scan_info->size),
1653 print_mac(mac, &scan_info->bssid[2]), scan_info);
1654 found = 0;
1655 oldest = NULL;
1656 list_for_each_entry(target, &wl->network_list, list) {
1657 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1658 &scan_info->bssid[2])) {
1659 found = 1;
1660 pr_debug("%s: same BBS found scanned list\n",
1661 __func__);
1662 break;
1663 }
1664 if (!oldest ||
1665 (target->last_scanned < oldest->last_scanned))
1666 oldest = target;
1667 }
1668
1669 if (!found) {
1670 /* not found in the list */
1671 if (list_empty(&wl->network_free_list)) {
1672 /* expire oldest */
1673 target = oldest;
1674 } else {
1675 target = list_entry(wl->network_free_list.next,
1676 struct gelic_wl_scan_info,
1677 list);
1678 }
1679 }
1680
1681 /* update the item */
1682 target->last_scanned = this_time;
1683 target->valid = 1;
1684 target->eurus_index = i;
1685 kfree(target->hwinfo);
1686 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1687 GFP_KERNEL);
1688 if (!target->hwinfo) {
1689 pr_info("%s: kzalloc failed\n", __func__);
1690 i++;
1691 scan_info_size += be16_to_cpu(scan_info->size);
1692 scan_info = (void *)scan_info +
1693 be16_to_cpu(scan_info->size);
1694 continue;
1695 }
1696 /* copy hw scan info */
1697 memcpy(target->hwinfo, scan_info, scan_info->size);
1698 target->essid_len = strnlen(scan_info->essid,
1699 sizeof(scan_info->essid));
1700 target->rate_len = 0;
1701 for (r = 0; r < MAX_RATES_LENGTH; r++)
1702 if (scan_info->rate[r])
1703 target->rate_len++;
1704 if (8 < target->rate_len)
1705 pr_info("%s: AP returns %d rates\n", __func__,
1706 target->rate_len);
1707 target->rate_ext_len = 0;
1708 for (r = 0; r < MAX_RATES_EX_LENGTH; r++)
1709 if (scan_info->ext_rate[r])
1710 target->rate_ext_len++;
1711 list_move_tail(&target->list, &wl->network_list);
1712 /* bump pointer */
1713 i++;
1714 scan_info_size += be16_to_cpu(scan_info->size);
1715 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size);
1716 }
1717 memset(&data, 0, sizeof(data));
1718 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1719 NULL);
1720 out:
1721 complete(&wl->scan_done);
1722 up(&wl->scan_lock);
1723 pr_debug("%s:end\n", __func__);
1724 }
1725
1726 /*
1727 * Select an appropriate bss from current scan list regarding
1728 * current settings from userspace.
1729 * The caller must hold wl->scan_lock,
1730 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1731 */
1732 static void update_best(struct gelic_wl_scan_info **best,
1733 struct gelic_wl_scan_info *candid,
1734 int *best_weight,
1735 int *weight)
1736 {
1737 if (*best_weight < ++(*weight)) {
1738 *best_weight = *weight;
1739 *best = candid;
1740 }
1741 }
1742
1743 static
1744 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1745 {
1746 struct gelic_wl_scan_info *scan_info;
1747 struct gelic_wl_scan_info *best_bss;
1748 int weight, best_weight;
1749 u16 security;
1750 DECLARE_MAC_BUF(mac);
1751
1752 pr_debug("%s: <-\n", __func__);
1753
1754 best_bss = NULL;
1755 best_weight = 0;
1756
1757 list_for_each_entry(scan_info, &wl->network_list, list) {
1758 pr_debug("%s: station %p\n", __func__, scan_info);
1759
1760 if (!scan_info->valid) {
1761 pr_debug("%s: station invalid\n", __func__);
1762 continue;
1763 }
1764
1765 /* If bss specified, check it only */
1766 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1767 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1768 wl->bssid)) {
1769 best_bss = scan_info;
1770 pr_debug("%s: bssid matched\n", __func__);
1771 break;
1772 } else {
1773 pr_debug("%s: bssid unmached\n", __func__);
1774 continue;
1775 }
1776 }
1777
1778 weight = 0;
1779
1780 /* security */
1781 security = be16_to_cpu(scan_info->hwinfo->security) &
1782 GELIC_EURUS_SCAN_SEC_MASK;
1783 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1784 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1785 update_best(&best_bss, scan_info,
1786 &best_weight, &weight);
1787 else
1788 continue;
1789 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1790 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1791 update_best(&best_bss, scan_info,
1792 &best_weight, &weight);
1793 else
1794 continue;
1795 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1796 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1797 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1798 update_best(&best_bss, scan_info,
1799 &best_weight, &weight);
1800 else
1801 continue;
1802 }
1803
1804 /* If ESSID is set, check it */
1805 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1806 if ((scan_info->essid_len == wl->essid_len) &&
1807 !strncmp(wl->essid,
1808 scan_info->hwinfo->essid,
1809 scan_info->essid_len))
1810 update_best(&best_bss, scan_info,
1811 &best_weight, &weight);
1812 else
1813 continue;
1814 }
1815 }
1816
1817 #ifdef DEBUG
1818 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1819 if (best_bss) {
1820 pr_debug("%s:addr=%s\n", __func__,
1821 print_mac(mac, &best_bss->hwinfo->bssid[2]));
1822 }
1823 #endif
1824 return best_bss;
1825 }
1826
1827 /*
1828 * Setup WEP configuration to the chip
1829 * The caller must hold wl->scan_lock,
1830 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1831 */
1832 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1833 {
1834 unsigned int i;
1835 struct gelic_eurus_wep_cfg *wep;
1836 struct gelic_eurus_cmd *cmd;
1837 int wep104 = 0;
1838 int have_key = 0;
1839 int ret = 0;
1840
1841 pr_debug("%s: <-\n", __func__);
1842 /* we can assume no one should uses the buffer */
1843 wep = wl->buf;
1844 memset(wep, 0, sizeof(*wep));
1845
1846 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1847 pr_debug("%s: WEP mode\n", __func__);
1848 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1849 if (!test_bit(i, &wl->key_enabled))
1850 continue;
1851
1852 pr_debug("%s: key#%d enabled\n", __func__, i);
1853 have_key = 1;
1854 if (wl->key_len[i] == 13)
1855 wep104 = 1;
1856 else if (wl->key_len[i] != 5) {
1857 pr_info("%s: wrong wep key[%d]=%d\n",
1858 __func__, i, wl->key_len[i]);
1859 ret = -EINVAL;
1860 goto out;
1861 }
1862 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1863 }
1864
1865 if (!have_key) {
1866 pr_info("%s: all wep key disabled\n", __func__);
1867 ret = -EINVAL;
1868 goto out;
1869 }
1870
1871 if (wep104) {
1872 pr_debug("%s: 104bit key\n", __func__);
1873 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1874 } else {
1875 pr_debug("%s: 40bit key\n", __func__);
1876 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1877 }
1878 } else {
1879 pr_debug("%s: NO encryption\n", __func__);
1880 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1881 }
1882
1883 /* issue wep setup */
1884 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1885 wep, sizeof(*wep));
1886 if (!cmd)
1887 ret = -ENOMEM;
1888 else if (cmd->status || cmd->cmd_status)
1889 ret = -ENXIO;
1890
1891 kfree(cmd);
1892 out:
1893 pr_debug("%s: ->\n", __func__);
1894 return ret;
1895 }
1896
1897 #ifdef DEBUG
1898 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1899 {
1900 switch (sec) {
1901 case GELIC_EURUS_WPA_SEC_NONE:
1902 return "NONE";
1903 break;
1904 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1905 return "WPA_TKIP_TKIP";
1906 break;
1907 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1908 return "WPA_TKIP_AES";
1909 break;
1910 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1911 return "WPA_AES_AES";
1912 break;
1913 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1914 return "WPA2_TKIP_TKIP";
1915 break;
1916 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1917 return "WPA2_TKIP_AES";
1918 break;
1919 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1920 return "WPA2_AES_AES";
1921 break;
1922 }
1923 return "";
1924 };
1925 #endif
1926
1927 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1928 {
1929 struct gelic_eurus_wpa_cfg *wpa;
1930 struct gelic_eurus_cmd *cmd;
1931 u16 security;
1932 int ret = 0;
1933
1934 pr_debug("%s: <-\n", __func__);
1935 /* we can assume no one should uses the buffer */
1936 wpa = wl->buf;
1937 memset(wpa, 0, sizeof(*wpa));
1938
1939 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1940 pr_info("%s: PSK not configured yet\n", __func__);
1941
1942 /* copy key */
1943 memcpy(wpa->psk, wl->psk, wl->psk_len);
1944
1945 /* set security level */
1946 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1947 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1948 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1949 } else {
1950 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1951 precise_ie())
1952 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1953 else
1954 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1955 }
1956 } else {
1957 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1958 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1959 } else {
1960 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1961 precise_ie())
1962 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1963 else
1964 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1965 }
1966 }
1967 wpa->security = cpu_to_be16(security);
1968
1969 /* PSK type */
1970 wpa->psk_type = cpu_to_be16(wl->psk_type);
1971 #ifdef DEBUG
1972 pr_debug("%s: sec=%s psktype=%s\nn", __func__,
1973 wpasecstr(wpa->security),
1974 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1975 "BIN" : "passphrase");
1976 #if 0
1977 /*
1978 * don't enable here if you plan to submit
1979 * the debug log because this dumps your precious
1980 * passphrase/key.
1981 */
1982 pr_debug("%s: psk=%s\n",
1983 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1984 (char *)"N/A" : (char *)wpa->psk);
1985 #endif
1986 #endif
1987 /* issue wpa setup */
1988 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1989 wpa, sizeof(*wpa));
1990 if (!cmd)
1991 ret = -ENOMEM;
1992 else if (cmd->status || cmd->cmd_status)
1993 ret = -ENXIO;
1994 kfree(cmd);
1995 pr_debug("%s: --> %d\n", __func__, ret);
1996 return ret;
1997 }
1998
1999 /*
2000 * Start association. caller must hold assoc_stat_lock
2001 */
2002 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2003 struct gelic_wl_scan_info *bss)
2004 {
2005 struct gelic_eurus_cmd *cmd;
2006 struct gelic_eurus_common_cfg *common;
2007 int ret = 0;
2008 unsigned long rc;
2009
2010 pr_debug("%s: <-\n", __func__);
2011
2012 /* do common config */
2013 common = wl->buf;
2014 memset(common, 0, sizeof(*common));
2015 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2016 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2017
2018 common->scan_index = cpu_to_be16(bss->eurus_index);
2019 switch (wl->auth_method) {
2020 case GELIC_EURUS_AUTH_OPEN:
2021 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2022 break;
2023 case GELIC_EURUS_AUTH_SHARED:
2024 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2025 break;
2026 }
2027
2028 #ifdef DEBUG
2029 scan_list_dump(wl);
2030 #endif
2031 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2032 be16_to_cpu(common->scan_index),
2033 be16_to_cpu(common->bss_type),
2034 be16_to_cpu(common->auth_method));
2035
2036 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2037 common, sizeof(*common));
2038 if (!cmd || cmd->status || cmd->cmd_status) {
2039 ret = -ENOMEM;
2040 kfree(cmd);
2041 goto out;
2042 }
2043 kfree(cmd);
2044
2045 /* WEP/WPA */
2046 switch (wl->wpa_level) {
2047 case GELIC_WL_WPA_LEVEL_NONE:
2048 /* If WEP or no security, setup WEP config */
2049 ret = gelic_wl_do_wep_setup(wl);
2050 break;
2051 case GELIC_WL_WPA_LEVEL_WPA:
2052 case GELIC_WL_WPA_LEVEL_WPA2:
2053 ret = gelic_wl_do_wpa_setup(wl);
2054 break;
2055 };
2056
2057 if (ret) {
2058 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2059 ret);
2060 }
2061
2062 /* start association */
2063 init_completion(&wl->assoc_done);
2064 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2065 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2066 NULL, 0);
2067 if (!cmd || cmd->status || cmd->cmd_status) {
2068 pr_debug("%s: assoc request failed\n", __func__);
2069 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2070 kfree(cmd);
2071 ret = -ENOMEM;
2072 gelic_wl_send_iwap_event(wl, NULL);
2073 goto out;
2074 }
2075 kfree(cmd);
2076
2077 /* wait for connected event */
2078 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2079
2080 if (!rc) {
2081 /* timeouted. Maybe key or cyrpt mode is wrong */
2082 pr_info("%s: connect timeout \n", __func__);
2083 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2084 NULL, 0);
2085 kfree(cmd);
2086 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2087 gelic_wl_send_iwap_event(wl, NULL);
2088 ret = -ENXIO;
2089 } else {
2090 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2091 /* copy bssid */
2092 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2093
2094 /* send connect event */
2095 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2096 pr_info("%s: connected\n", __func__);
2097 }
2098 out:
2099 pr_debug("%s: ->\n", __func__);
2100 return ret;
2101 }
2102
2103 /*
2104 * connected event
2105 */
2106 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2107 u64 event)
2108 {
2109 u64 desired_event = 0;
2110
2111 switch (wl->wpa_level) {
2112 case GELIC_WL_WPA_LEVEL_NONE:
2113 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2114 break;
2115 case GELIC_WL_WPA_LEVEL_WPA:
2116 case GELIC_WL_WPA_LEVEL_WPA2:
2117 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2118 break;
2119 }
2120
2121 if (desired_event == event) {
2122 pr_debug("%s: completed \n", __func__);
2123 complete(&wl->assoc_done);
2124 netif_carrier_on(port_to_netdev(wl_port(wl)));
2125 } else
2126 pr_debug("%s: event %#lx under wpa\n",
2127 __func__, event);
2128 }
2129
2130 /*
2131 * disconnect event
2132 */
2133 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2134 u64 event)
2135 {
2136 struct gelic_eurus_cmd *cmd;
2137 int lock;
2138
2139 /*
2140 * If we fall here in the middle of association,
2141 * associate_bss() should be waiting for complation of
2142 * wl->assoc_done.
2143 * As it waits with timeout, just leave assoc_done
2144 * uncompleted, then it terminates with timeout
2145 */
2146 if (down_trylock(&wl->assoc_stat_lock)) {
2147 pr_debug("%s: already locked\n", __func__);
2148 lock = 0;
2149 } else {
2150 pr_debug("%s: obtain lock\n", __func__);
2151 lock = 1;
2152 }
2153
2154 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2155 kfree(cmd);
2156
2157 /* send disconnected event to the supplicant */
2158 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2159 gelic_wl_send_iwap_event(wl, NULL);
2160
2161 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2162 netif_carrier_off(port_to_netdev(wl_port(wl)));
2163
2164 if (lock)
2165 up(&wl->assoc_stat_lock);
2166 }
2167 /*
2168 * event worker
2169 */
2170 #ifdef DEBUG
2171 static const char *eventstr(enum gelic_lv1_wl_event event)
2172 {
2173 static char buf[32];
2174 char *ret;
2175 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2176 ret = "EURUS_READY";
2177 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2178 ret = "SCAN_COMPLETED";
2179 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2180 ret = "DEAUTH";
2181 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2182 ret = "BEACON_LOST";
2183 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2184 ret = "CONNECTED";
2185 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2186 ret = "WPA_CONNECTED";
2187 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2188 ret = "WPA_ERROR";
2189 else {
2190 sprintf(buf, "Unknown(%#x)", event);
2191 ret = buf;
2192 }
2193 return ret;
2194 }
2195 #else
2196 static const char *eventstr(enum gelic_lv1_wl_event event)
2197 {
2198 return NULL;
2199 }
2200 #endif
2201 static void gelic_wl_event_worker(struct work_struct *work)
2202 {
2203 struct gelic_wl_info *wl;
2204 struct gelic_port *port;
2205 u64 event, tmp;
2206 int status;
2207
2208 pr_debug("%s:start\n", __func__);
2209 wl = container_of(work, struct gelic_wl_info, event_work.work);
2210 port = wl_port(wl);
2211 while (1) {
2212 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2213 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2214 &event, &tmp);
2215 if (status) {
2216 if (status != LV1_NO_ENTRY)
2217 pr_debug("%s:wlan event failed %d\n",
2218 __func__, status);
2219 /* got all events */
2220 pr_debug("%s:end\n", __func__);
2221 return;
2222 }
2223 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2224 switch (event) {
2225 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2226 gelic_wl_scan_complete_event(wl);
2227 break;
2228 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2229 case GELIC_LV1_WL_EVENT_DEAUTH:
2230 gelic_wl_disconnect_event(wl, event);
2231 break;
2232 case GELIC_LV1_WL_EVENT_CONNECTED:
2233 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2234 gelic_wl_connected_event(wl, event);
2235 break;
2236 default:
2237 break;
2238 }
2239 } /* while */
2240 }
2241 /*
2242 * association worker
2243 */
2244 static void gelic_wl_assoc_worker(struct work_struct *work)
2245 {
2246 struct gelic_wl_info *wl;
2247
2248 struct gelic_wl_scan_info *best_bss;
2249 int ret;
2250
2251 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2252
2253 down(&wl->assoc_stat_lock);
2254
2255 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2256 goto out;
2257
2258 ret = gelic_wl_start_scan(wl, 0);
2259 if (ret == -ERESTARTSYS) {
2260 pr_debug("%s: scan start failed association\n", __func__);
2261 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2262 goto out;
2263 } else if (ret) {
2264 pr_info("%s: scan prerequisite failed\n", __func__);
2265 goto out;
2266 }
2267
2268 /*
2269 * Wait for bss scan completion
2270 * If we have scan list already, gelic_wl_start_scan()
2271 * returns OK and raises the complete. Thus,
2272 * it's ok to wait unconditionally here
2273 */
2274 wait_for_completion(&wl->scan_done);
2275
2276 pr_debug("%s: scan done\n", __func__);
2277 down(&wl->scan_lock);
2278 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2279 gelic_wl_send_iwap_event(wl, NULL);
2280 pr_info("%s: no scan list. association failed\n", __func__);
2281 goto scan_lock_out;
2282 }
2283
2284 /* find best matching bss */
2285 best_bss = gelic_wl_find_best_bss(wl);
2286 if (!best_bss) {
2287 gelic_wl_send_iwap_event(wl, NULL);
2288 pr_info("%s: no bss matched. association failed\n", __func__);
2289 goto scan_lock_out;
2290 }
2291
2292 /* ok, do association */
2293 ret = gelic_wl_associate_bss(wl, best_bss);
2294 if (ret)
2295 pr_info("%s: association failed %d\n", __func__, ret);
2296 scan_lock_out:
2297 up(&wl->scan_lock);
2298 out:
2299 up(&wl->assoc_stat_lock);
2300 }
2301 /*
2302 * Interrupt handler
2303 * Called from the ethernet interrupt handler
2304 * Processes wireless specific virtual interrupts only
2305 */
2306 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2307 {
2308 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2309
2310 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2311 pr_debug("%s:cmd complete\n", __func__);
2312 complete(&wl->cmd_done_intr);
2313 }
2314
2315 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2316 pr_debug("%s:event received\n", __func__);
2317 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2318 }
2319 }
2320
2321 /*
2322 * driver helpers
2323 */
2324 #define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2325 static const iw_handler gelic_wl_wext_handler[] =
2326 {
2327 IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
2328 IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
2329 IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
2330 IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
2331 IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
2332 IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
2333 IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
2334 IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
2335 IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
2336 IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
2337 IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
2338 IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
2339 IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
2340 IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
2341 IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
2342 IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
2343 IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
2344 };
2345
2346 static struct iw_priv_args gelic_wl_private_args[] =
2347 {
2348 {
2349 .cmd = GELIC_WL_PRIV_SET_PSK,
2350 .set_args = IW_PRIV_TYPE_CHAR |
2351 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2352 .name = "set_psk"
2353 },
2354 {
2355 .cmd = GELIC_WL_PRIV_GET_PSK,
2356 .get_args = IW_PRIV_TYPE_CHAR |
2357 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2358 .name = "get_psk"
2359 }
2360 };
2361
2362 static const iw_handler gelic_wl_private_handler[] =
2363 {
2364 gelic_wl_priv_set_psk,
2365 gelic_wl_priv_get_psk,
2366 };
2367
2368 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2369 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2370 .standard = gelic_wl_wext_handler,
2371 .get_wireless_stats = gelic_wl_get_wireless_stats,
2372 .num_private = ARRAY_SIZE(gelic_wl_private_handler),
2373 .num_private_args = ARRAY_SIZE(gelic_wl_private_args),
2374 .private = gelic_wl_private_handler,
2375 .private_args = gelic_wl_private_args,
2376 };
2377
2378 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2379 {
2380 struct net_device *netdev;
2381 struct gelic_port *port;
2382 struct gelic_wl_info *wl;
2383 unsigned int i;
2384
2385 pr_debug("%s:start\n", __func__);
2386 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2387 sizeof(struct gelic_wl_info));
2388 pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2389 if (!netdev)
2390 return NULL;
2391
2392 port = netdev_priv(netdev);
2393 port->netdev = netdev;
2394 port->card = card;
2395 port->type = GELIC_PORT_WIRELESS;
2396
2397 wl = port_wl(port);
2398 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2399
2400 /* allocate scan list */
2401 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2402 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2403
2404 if (!wl->networks)
2405 goto fail_bss;
2406
2407 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2408 if (!wl->eurus_cmd_queue)
2409 goto fail_cmd_workqueue;
2410
2411 wl->event_queue = create_singlethread_workqueue("gelic_event");
2412 if (!wl->event_queue)
2413 goto fail_event_workqueue;
2414
2415 INIT_LIST_HEAD(&wl->network_free_list);
2416 INIT_LIST_HEAD(&wl->network_list);
2417 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2418 list_add_tail(&wl->networks[i].list,
2419 &wl->network_free_list);
2420 init_completion(&wl->cmd_done_intr);
2421
2422 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2423 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2424 init_MUTEX(&wl->scan_lock);
2425 init_MUTEX(&wl->assoc_stat_lock);
2426
2427 init_completion(&wl->scan_done);
2428 /* for the case that no scan request is issued and stop() is called */
2429 complete(&wl->scan_done);
2430
2431 spin_lock_init(&wl->lock);
2432
2433 wl->scan_age = 5*HZ; /* FIXME */
2434
2435 /* buffer for receiving scanned list etc */
2436 BUILD_BUG_ON(PAGE_SIZE <
2437 sizeof(struct gelic_eurus_scan_info) *
2438 GELIC_EURUS_MAX_SCAN);
2439 wl->buf = (void *)get_zeroed_page(GFP_KERNEL);
2440 if (!wl->buf) {
2441 pr_info("%s:buffer allocation failed\n", __func__);
2442 goto fail_getpage;
2443 }
2444 pr_debug("%s:end\n", __func__);
2445 return netdev;
2446
2447 fail_getpage:
2448 destroy_workqueue(wl->event_queue);
2449 fail_event_workqueue:
2450 destroy_workqueue(wl->eurus_cmd_queue);
2451 fail_cmd_workqueue:
2452 kfree(wl->networks);
2453 fail_bss:
2454 free_netdev(netdev);
2455 pr_debug("%s:end error\n", __func__);
2456 return NULL;
2457
2458 }
2459
2460 static void gelic_wl_free(struct gelic_wl_info *wl)
2461 {
2462 struct gelic_wl_scan_info *scan_info;
2463 unsigned int i;
2464
2465 pr_debug("%s: <-\n", __func__);
2466
2467 pr_debug("%s: destroy queues\n", __func__);
2468 destroy_workqueue(wl->eurus_cmd_queue);
2469 destroy_workqueue(wl->event_queue);
2470
2471 scan_info = wl->networks;
2472 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2473 kfree(scan_info->hwinfo);
2474 kfree(wl->networks);
2475
2476 free_netdev(port_to_netdev(wl_port(wl)));
2477
2478 pr_debug("%s: ->\n", __func__);
2479 }
2480
2481 static int gelic_wl_try_associate(struct net_device *netdev)
2482 {
2483 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2484 int ret = -1;
2485 unsigned int i;
2486
2487 pr_debug("%s: <-\n", __func__);
2488
2489 /* check constraits for start association */
2490 /* for no access restriction AP */
2491 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2492 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2493 &wl->stat))
2494 goto do_associate;
2495 else {
2496 pr_debug("%s: no wep, not configured\n", __func__);
2497 return ret;
2498 }
2499 }
2500
2501 /* for WEP, one of four keys should be set */
2502 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2503 /* one of keys set */
2504 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2505 if (test_bit(i, &wl->key_enabled))
2506 goto do_associate;
2507 }
2508 pr_debug("%s: WEP, but no key specified\n", __func__);
2509 return ret;
2510 }
2511
2512 /* for WPA[2], psk should be set */
2513 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2514 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2515 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2516 &wl->stat))
2517 goto do_associate;
2518 else {
2519 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2520 __func__);
2521 return ret;
2522 }
2523 }
2524
2525 do_associate:
2526 ret = schedule_delayed_work(&wl->assoc_work, 0);
2527 pr_debug("%s: start association work %d\n", __func__, ret);
2528 return ret;
2529 }
2530
2531 /*
2532 * netdev handlers
2533 */
2534 static int gelic_wl_open(struct net_device *netdev)
2535 {
2536 struct gelic_card *card = netdev_card(netdev);
2537
2538 pr_debug("%s:->%p\n", __func__, netdev);
2539
2540 gelic_card_up(card);
2541
2542 /* try to associate */
2543 gelic_wl_try_associate(netdev);
2544
2545 netif_start_queue(netdev);
2546
2547 pr_debug("%s:<-\n", __func__);
2548 return 0;
2549 }
2550
2551 /*
2552 * reset state machine
2553 */
2554 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2555 {
2556 struct gelic_wl_scan_info *target;
2557 struct gelic_wl_scan_info *tmp;
2558
2559 /* empty scan list */
2560 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2561 list_move_tail(&target->list, &wl->network_free_list);
2562 }
2563 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2564
2565 /* clear configuration */
2566 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2567 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2568 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2569 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2570
2571 wl->key_enabled = 0;
2572 wl->current_key = 0;
2573
2574 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2575 wl->psk_len = 0;
2576
2577 wl->essid_len = 0;
2578 memset(wl->essid, 0, sizeof(wl->essid));
2579 memset(wl->bssid, 0, sizeof(wl->bssid));
2580 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2581
2582 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2583
2584 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2585 /* all status bit clear */
2586 wl->stat = 0;
2587 return 0;
2588 }
2589
2590 /*
2591 * Tell eurus to terminate association
2592 */
2593 static void gelic_wl_disconnect(struct net_device *netdev)
2594 {
2595 struct gelic_port *port = netdev_priv(netdev);
2596 struct gelic_wl_info *wl = port_wl(port);
2597 struct gelic_eurus_cmd *cmd;
2598
2599 /*
2600 * If scann process is running on chip,
2601 * further requests will be rejected
2602 */
2603 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2604 wait_for_completion_timeout(&wl->scan_done, HZ);
2605
2606 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2607 kfree(cmd);
2608 gelic_wl_send_iwap_event(wl, NULL);
2609 };
2610
2611 static int gelic_wl_stop(struct net_device *netdev)
2612 {
2613 struct gelic_port *port = netdev_priv(netdev);
2614 struct gelic_wl_info *wl = port_wl(port);
2615 struct gelic_card *card = netdev_card(netdev);
2616
2617 pr_debug("%s:<-\n", __func__);
2618
2619 /*
2620 * Cancel pending association work.
2621 * event work can run after netdev down
2622 */
2623 cancel_delayed_work(&wl->assoc_work);
2624
2625 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2626 gelic_wl_disconnect(netdev);
2627
2628 /* reset our state machine */
2629 gelic_wl_reset_state(wl);
2630
2631 netif_stop_queue(netdev);
2632
2633 gelic_card_down(card);
2634
2635 pr_debug("%s:->\n", __func__);
2636 return 0;
2637 }
2638
2639 /* -- */
2640
2641 static struct ethtool_ops gelic_wl_ethtool_ops = {
2642 .get_drvinfo = gelic_net_get_drvinfo,
2643 .get_link = gelic_wl_get_link,
2644 .get_tx_csum = ethtool_op_get_tx_csum,
2645 .set_tx_csum = ethtool_op_set_tx_csum,
2646 .get_rx_csum = gelic_net_get_rx_csum,
2647 .set_rx_csum = gelic_net_set_rx_csum,
2648 };
2649
2650 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2651 {
2652 struct gelic_wl_info *wl;
2653 wl = port_wl(netdev_priv(netdev));
2654 BUG_ON(!wl);
2655 netdev->open = &gelic_wl_open;
2656 netdev->stop = &gelic_wl_stop;
2657 netdev->hard_start_xmit = &gelic_net_xmit;
2658 netdev->set_multicast_list = &gelic_net_set_multi;
2659 netdev->change_mtu = &gelic_net_change_mtu;
2660 netdev->wireless_data = &wl->wireless_data;
2661 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2662 /* tx watchdog */
2663 netdev->tx_timeout = &gelic_net_tx_timeout;
2664 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2665
2666 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2667 #ifdef CONFIG_NET_POLL_CONTROLLER
2668 netdev->poll_controller = gelic_net_poll_controller;
2669 #endif
2670 }
2671
2672 /*
2673 * driver probe/remove
2674 */
2675 int gelic_wl_driver_probe(struct gelic_card *card)
2676 {
2677 int ret;
2678 struct net_device *netdev;
2679
2680 pr_debug("%s:start\n", __func__);
2681
2682 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2683 return 0;
2684 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2685 return 0;
2686
2687 /* alloc netdevice for wireless */
2688 netdev = gelic_wl_alloc(card);
2689 if (!netdev)
2690 return -ENOMEM;
2691
2692 /* setup net_device structure */
2693 gelic_wl_setup_netdev_ops(netdev);
2694
2695 /* setup some of net_device and register it */
2696 ret = gelic_net_setup_netdev(netdev, card);
2697 if (ret)
2698 goto fail_setup;
2699 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2700
2701 /* add enable wireless interrupt */
2702 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2703 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2704 /* to allow wireless commands while both interfaces are down */
2705 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2706 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2707 pr_debug("%s:end\n", __func__);
2708 return 0;
2709
2710 fail_setup:
2711 gelic_wl_free(port_wl(netdev_port(netdev)));
2712
2713 return ret;
2714 }
2715
2716 int gelic_wl_driver_remove(struct gelic_card *card)
2717 {
2718 struct gelic_wl_info *wl;
2719 struct net_device *netdev;
2720
2721 pr_debug("%s:start\n", __func__);
2722
2723 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2724 return 0;
2725 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2726 return 0;
2727
2728 netdev = card->netdev[GELIC_PORT_WIRELESS];
2729 wl = port_wl(netdev_priv(netdev));
2730
2731 /* if the interface was not up, but associated */
2732 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2733 gelic_wl_disconnect(netdev);
2734
2735 complete(&wl->cmd_done_intr);
2736
2737 /* cancel all work queue */
2738 cancel_delayed_work(&wl->assoc_work);
2739 cancel_delayed_work(&wl->event_work);
2740 flush_workqueue(wl->eurus_cmd_queue);
2741 flush_workqueue(wl->event_queue);
2742
2743 unregister_netdev(netdev);
2744
2745 /* disable wireless interrupt */
2746 pr_debug("%s: disable intr\n", __func__);
2747 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2748 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2749 /* free bss list, netdev*/
2750 gelic_wl_free(wl);
2751 pr_debug("%s:end\n", __func__);
2752 return 0;
2753 }
WRT350N Kernel Patches