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PS3: gelic: ignore scan info from zero SSID beacons
[linux-2.6-block.git] / drivers / net / ps3_gelic_wireless.c
CommitLineData
09dde54c
MM		 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
48static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan);
49static int gelic_wl_try_associate(struct net_device *netdev);
50
51/*
52 * tables
53 */
54
55/* 802.11b/g channel to freq in MHz */
56static 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 */
64static 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 */
83static inline int wpa2_capable(void)
84{
85 return (0 <= ps3_compare_firmware_version(2, 0, 0));
86}
87
88static inline int precise_ie(void)
89{
90 return 0; /* FIXME */
91}
92/*
93 * post_eurus_cmd helpers
94 */
95struct 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
100static 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
112static 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
143static inline const char *cmdstr(enum gelic_eurus_command ix)
144{
145 return "";
146}
147#endif
148
149/* synchronously do eurus commands */
150static 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
210static 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
237static 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
253static 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 */
270static 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
278static 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 */
302static 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 */
368static 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
378static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
379static 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 */
386static 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
493struct ie_item {
494 u8 *data;
495 u8 len;
496};
497
498struct ie_info {
499 struct ie_item wpa;
500 struct ie_item rsn;
501};
502
503static 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 */
550static 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
681static 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;
730out:
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
737static 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
760static 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
885static 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 */
938static 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
969static 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 */
995static 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);
1063done:
1064 spin_unlock_irqrestore(&wl->lock, irqflag);
1065 pr_debug("%s: -> \n", __func__);
1066 return ret;
1067}
1068
1069static 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
1122done:
1123 spin_unlock_irqrestore(&wl->lock, irqflag);
1124 return ret;
1125}
1126
1127/* SIOC{S,G}IWAP */
1128static 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
1160static 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 */
1184static 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 }
1291done:
1292 spin_unlock_irqrestore(&wl->lock, irqflag);
1293 pr_debug("%s: -> \n", __func__);
1294 return ret;
1295}
1296
1297static 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 }
1362out:
1363 spin_unlock_irqrestore(&wl->lock, irqflag);
1364 pr_debug("%s: -> \n", __func__);
1365 return ret;
1366}
1367/* SIOC{S,G}IWMODE */
1368static 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
1384static 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 */
1396static 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
1420static 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);
1455out:
1456 spin_unlock_irqrestore(&wl->lock, irqflag);
1457 pr_debug("%s:->\n", __func__);
1458 return ret;
1459}
1460
1461static 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 */
1501static 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
1514static 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 */
1546static 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);
1585out:
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 */
1595static 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 */
aad4c7d3
MM		 1647 for (i = 0, scan_info_size = 0, scan_info = wl->buf;
1648 scan_info_size < data_len;
1649 i++, scan_info_size += be16_to_cpu(scan_info->size),
1650 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
09dde54c
MM		 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);
aad4c7d3
MM		 1654
1655 /*
1656 * The wireless firmware may return invalid channel 0 and/or
1657 * invalid rate if the AP emits zero length SSID ie. As this
1658 * scan information is useless, ignore it
1659 */
1660 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1661 pr_debug("%s: invalid scan info\n", __func__);
1662 continue;
1663 }
1664
09dde54c
MM		 1665 found = 0;
1666 oldest = NULL;
1667 list_for_each_entry(target, &wl->network_list, list) {
1668 if (!compare_ether_addr(&target->hwinfo->bssid[2],
1669 &scan_info->bssid[2])) {
1670 found = 1;
1671 pr_debug("%s: same BBS found scanned list\n",
1672 __func__);
1673 break;
1674 }
1675 if (!oldest ||
1676 (target->last_scanned < oldest->last_scanned))
1677 oldest = target;
1678 }
1679
1680 if (!found) {
1681 /* not found in the list */
1682 if (list_empty(&wl->network_free_list)) {
1683 /* expire oldest */
1684 target = oldest;
1685 } else {
1686 target = list_entry(wl->network_free_list.next,
1687 struct gelic_wl_scan_info,
1688 list);
1689 }
1690 }
1691
1692 /* update the item */
1693 target->last_scanned = this_time;
1694 target->valid = 1;
1695 target->eurus_index = i;
1696 kfree(target->hwinfo);
1697 target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
1698 GFP_KERNEL);
1699 if (!target->hwinfo) {
1700 pr_info("%s: kzalloc failed\n", __func__);
09dde54c
MM		 1701 continue;
1702 }
1703 /* copy hw scan info */
1704 memcpy(target->hwinfo, scan_info, scan_info->size);
1705 target->essid_len = strnlen(scan_info->essid,
1706 sizeof(scan_info->essid));
1707 target->rate_len = 0;
1708 for (r = 0; r < MAX_RATES_LENGTH; r++)
1709 if (scan_info->rate[r])
1710 target->rate_len++;
1711 if (8 < target->rate_len)
1712 pr_info("%s: AP returns %d rates\n", __func__,
1713 target->rate_len);
1714 target->rate_ext_len = 0;
1715 for (r = 0; r < MAX_RATES_EX_LENGTH; r++)
1716 if (scan_info->ext_rate[r])
1717 target->rate_ext_len++;
1718 list_move_tail(&target->list, &wl->network_list);
09dde54c
MM		 1719 }
1720 memset(&data, 0, sizeof(data));
1721 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1722 NULL);
1723out:
1724 complete(&wl->scan_done);
1725 up(&wl->scan_lock);
1726 pr_debug("%s:end\n", __func__);
1727}
1728
1729/*
1730 * Select an appropriate bss from current scan list regarding
1731 * current settings from userspace.
1732 * The caller must hold wl->scan_lock,
1733 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1734 */
1735static void update_best(struct gelic_wl_scan_info **best,
1736 struct gelic_wl_scan_info *candid,
1737 int *best_weight,
1738 int *weight)
1739{
1740 if (*best_weight < ++(*weight)) {
1741 *best_weight = *weight;
1742 *best = candid;
1743 }
1744}
1745
1746static
1747struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1748{
1749 struct gelic_wl_scan_info *scan_info;
1750 struct gelic_wl_scan_info *best_bss;
1751 int weight, best_weight;
1752 u16 security;
1753 DECLARE_MAC_BUF(mac);
1754
1755 pr_debug("%s: <-\n", __func__);
1756
1757 best_bss = NULL;
1758 best_weight = 0;
1759
1760 list_for_each_entry(scan_info, &wl->network_list, list) {
1761 pr_debug("%s: station %p\n", __func__, scan_info);
1762
1763 if (!scan_info->valid) {
1764 pr_debug("%s: station invalid\n", __func__);
1765 continue;
1766 }
1767
1768 /* If bss specified, check it only */
1769 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1770 if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
1771 wl->bssid)) {
1772 best_bss = scan_info;
1773 pr_debug("%s: bssid matched\n", __func__);
1774 break;
1775 } else {
1776 pr_debug("%s: bssid unmached\n", __func__);
1777 continue;
1778 }
1779 }
1780
1781 weight = 0;
1782
1783 /* security */
1784 security = be16_to_cpu(scan_info->hwinfo->security) &
1785 GELIC_EURUS_SCAN_SEC_MASK;
1786 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1787 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1788 update_best(&best_bss, scan_info,
1789 &best_weight, &weight);
1790 else
1791 continue;
1792 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1793 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1794 update_best(&best_bss, scan_info,
1795 &best_weight, &weight);
1796 else
1797 continue;
1798 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1799 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1800 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1801 update_best(&best_bss, scan_info,
1802 &best_weight, &weight);
1803 else
1804 continue;
1805 }
1806
1807 /* If ESSID is set, check it */
1808 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1809 if ((scan_info->essid_len == wl->essid_len) &&
1810 !strncmp(wl->essid,
1811 scan_info->hwinfo->essid,
1812 scan_info->essid_len))
1813 update_best(&best_bss, scan_info,
1814 &best_weight, &weight);
1815 else
1816 continue;
1817 }
1818 }
1819
1820#ifdef DEBUG
1821 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1822 if (best_bss) {
1823 pr_debug("%s:addr=%s\n", __func__,
1824 print_mac(mac, &best_bss->hwinfo->bssid[2]));
1825 }
1826#endif
1827 return best_bss;
1828}
1829
1830/*
1831 * Setup WEP configuration to the chip
1832 * The caller must hold wl->scan_lock,
1833 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1834 */
1835static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1836{
1837 unsigned int i;
1838 struct gelic_eurus_wep_cfg *wep;
1839 struct gelic_eurus_cmd *cmd;
1840 int wep104 = 0;
1841 int have_key = 0;
1842 int ret = 0;
1843
1844 pr_debug("%s: <-\n", __func__);
1845 /* we can assume no one should uses the buffer */
1846 wep = wl->buf;
1847 memset(wep, 0, sizeof(*wep));
1848
1849 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1850 pr_debug("%s: WEP mode\n", __func__);
1851 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1852 if (!test_bit(i, &wl->key_enabled))
1853 continue;
1854
1855 pr_debug("%s: key#%d enabled\n", __func__, i);
1856 have_key = 1;
1857 if (wl->key_len[i] == 13)
1858 wep104 = 1;
1859 else if (wl->key_len[i] != 5) {
1860 pr_info("%s: wrong wep key[%d]=%d\n",
1861 __func__, i, wl->key_len[i]);
1862 ret = -EINVAL;
1863 goto out;
1864 }
1865 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1866 }
1867
1868 if (!have_key) {
1869 pr_info("%s: all wep key disabled\n", __func__);
1870 ret = -EINVAL;
1871 goto out;
1872 }
1873
1874 if (wep104) {
1875 pr_debug("%s: 104bit key\n", __func__);
1876 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1877 } else {
1878 pr_debug("%s: 40bit key\n", __func__);
1879 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1880 }
1881 } else {
1882 pr_debug("%s: NO encryption\n", __func__);
1883 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1884 }
1885
1886 /* issue wep setup */
1887 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1888 wep, sizeof(*wep));
1889 if (!cmd)
1890 ret = -ENOMEM;
1891 else if (cmd->status || cmd->cmd_status)
1892 ret = -ENXIO;
1893
1894 kfree(cmd);
1895out:
1896 pr_debug("%s: ->\n", __func__);
1897 return ret;
1898}
1899
1900#ifdef DEBUG
1901static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1902{
1903 switch (sec) {
1904 case GELIC_EURUS_WPA_SEC_NONE:
1905 return "NONE";
1906 break;
1907 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1908 return "WPA_TKIP_TKIP";
1909 break;
1910 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1911 return "WPA_TKIP_AES";
1912 break;
1913 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1914 return "WPA_AES_AES";
1915 break;
1916 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1917 return "WPA2_TKIP_TKIP";
1918 break;
1919 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1920 return "WPA2_TKIP_AES";
1921 break;
1922 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1923 return "WPA2_AES_AES";
1924 break;
1925 }
1926 return "";
1927};
1928#endif
1929
1930static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1931{
1932 struct gelic_eurus_wpa_cfg *wpa;
1933 struct gelic_eurus_cmd *cmd;
1934 u16 security;
1935 int ret = 0;
1936
1937 pr_debug("%s: <-\n", __func__);
1938 /* we can assume no one should uses the buffer */
1939 wpa = wl->buf;
1940 memset(wpa, 0, sizeof(*wpa));
1941
1942 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1943 pr_info("%s: PSK not configured yet\n", __func__);
1944
1945 /* copy key */
1946 memcpy(wpa->psk, wl->psk, wl->psk_len);
1947
1948 /* set security level */
1949 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1950 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1951 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1952 } else {
1953 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1954 precise_ie())
1955 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1956 else
1957 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1958 }
1959 } else {
1960 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1961 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1962 } else {
1963 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1964 precise_ie())
1965 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1966 else
1967 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1968 }
1969 }
1970 wpa->security = cpu_to_be16(security);
1971
1972 /* PSK type */
1973 wpa->psk_type = cpu_to_be16(wl->psk_type);
1974#ifdef DEBUG
1975 pr_debug("%s: sec=%s psktype=%s\nn", __func__,
1976 wpasecstr(wpa->security),
1977 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1978 "BIN" : "passphrase");
1979#if 0
1980 /*
1981 * don't enable here if you plan to submit
1982 * the debug log because this dumps your precious
1983 * passphrase/key.
1984 */
1985 pr_debug("%s: psk=%s\n",
1986 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1987 (char *)"N/A" : (char *)wpa->psk);
1988#endif
1989#endif
1990 /* issue wpa setup */
1991 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1992 wpa, sizeof(*wpa));
1993 if (!cmd)
1994 ret = -ENOMEM;
1995 else if (cmd->status || cmd->cmd_status)
1996 ret = -ENXIO;
1997 kfree(cmd);
1998 pr_debug("%s: --> %d\n", __func__, ret);
1999 return ret;
2000}
2001
2002/*
2003 * Start association. caller must hold assoc_stat_lock
2004 */
2005static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
2006 struct gelic_wl_scan_info *bss)
2007{
2008 struct gelic_eurus_cmd *cmd;
2009 struct gelic_eurus_common_cfg *common;
2010 int ret = 0;
2011 unsigned long rc;
2012
2013 pr_debug("%s: <-\n", __func__);
2014
2015 /* do common config */
2016 common = wl->buf;
2017 memset(common, 0, sizeof(*common));
2018 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
2019 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
2020
2021 common->scan_index = cpu_to_be16(bss->eurus_index);
2022 switch (wl->auth_method) {
2023 case GELIC_EURUS_AUTH_OPEN:
2024 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
2025 break;
2026 case GELIC_EURUS_AUTH_SHARED:
2027 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
2028 break;
2029 }
2030
2031#ifdef DEBUG
2032 scan_list_dump(wl);
2033#endif
2034 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
2035 be16_to_cpu(common->scan_index),
2036 be16_to_cpu(common->bss_type),
2037 be16_to_cpu(common->auth_method));
2038
2039 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
2040 common, sizeof(*common));
2041 if (!cmd || cmd->status || cmd->cmd_status) {
2042 ret = -ENOMEM;
2043 kfree(cmd);
2044 goto out;
2045 }
2046 kfree(cmd);
2047
2048 /* WEP/WPA */
2049 switch (wl->wpa_level) {
2050 case GELIC_WL_WPA_LEVEL_NONE:
2051 /* If WEP or no security, setup WEP config */
2052 ret = gelic_wl_do_wep_setup(wl);
2053 break;
2054 case GELIC_WL_WPA_LEVEL_WPA:
2055 case GELIC_WL_WPA_LEVEL_WPA2:
2056 ret = gelic_wl_do_wpa_setup(wl);
2057 break;
2058 };
2059
2060 if (ret) {
2061 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
2062 ret);
2063 }
2064
2065 /* start association */
2066 init_completion(&wl->assoc_done);
2067 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
2068 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
2069 NULL, 0);
2070 if (!cmd || cmd->status || cmd->cmd_status) {
2071 pr_debug("%s: assoc request failed\n", __func__);
2072 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2073 kfree(cmd);
2074 ret = -ENOMEM;
2075 gelic_wl_send_iwap_event(wl, NULL);
2076 goto out;
2077 }
2078 kfree(cmd);
2079
2080 /* wait for connected event */
2081 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
2082
2083 if (!rc) {
2084 /* timeouted. Maybe key or cyrpt mode is wrong */
2085 pr_info("%s: connect timeout \n", __func__);
2086 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2087 NULL, 0);
2088 kfree(cmd);
2089 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2090 gelic_wl_send_iwap_event(wl, NULL);
2091 ret = -ENXIO;
2092 } else {
2093 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2094 /* copy bssid */
2095 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2096
2097 /* send connect event */
2098 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2099 pr_info("%s: connected\n", __func__);
2100 }
2101out:
2102 pr_debug("%s: ->\n", __func__);
2103 return ret;
2104}
2105
2106/*
2107 * connected event
2108 */
2109static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2110 u64 event)
2111{
2112 u64 desired_event = 0;
2113
2114 switch (wl->wpa_level) {
2115 case GELIC_WL_WPA_LEVEL_NONE:
2116 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2117 break;
2118 case GELIC_WL_WPA_LEVEL_WPA:
2119 case GELIC_WL_WPA_LEVEL_WPA2:
2120 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2121 break;
2122 }
2123
2124 if (desired_event == event) {
2125 pr_debug("%s: completed \n", __func__);
2126 complete(&wl->assoc_done);
2127 netif_carrier_on(port_to_netdev(wl_port(wl)));
2128 } else
2129 pr_debug("%s: event %#lx under wpa\n",
2130 __func__, event);
2131}
2132
2133/*
2134 * disconnect event
2135 */
2136static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2137 u64 event)
2138{
2139 struct gelic_eurus_cmd *cmd;
2140 int lock;
2141
2142 /*
2143 * If we fall here in the middle of association,
2144 * associate_bss() should be waiting for complation of
2145 * wl->assoc_done.
2146 * As it waits with timeout, just leave assoc_done
2147 * uncompleted, then it terminates with timeout
2148 */
2149 if (down_trylock(&wl->assoc_stat_lock)) {
2150 pr_debug("%s: already locked\n", __func__);
2151 lock = 0;
2152 } else {
2153 pr_debug("%s: obtain lock\n", __func__);
2154 lock = 1;
2155 }
2156
2157 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2158 kfree(cmd);
2159
2160 /* send disconnected event to the supplicant */
2161 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2162 gelic_wl_send_iwap_event(wl, NULL);
2163
2164 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2165 netif_carrier_off(port_to_netdev(wl_port(wl)));
2166
2167 if (lock)
2168 up(&wl->assoc_stat_lock);
2169}
2170/*
2171 * event worker
2172 */
2173#ifdef DEBUG
2174static const char *eventstr(enum gelic_lv1_wl_event event)
2175{
2176 static char buf[32];
2177 char *ret;
2178 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2179 ret = "EURUS_READY";
2180 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2181 ret = "SCAN_COMPLETED";
2182 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2183 ret = "DEAUTH";
2184 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2185 ret = "BEACON_LOST";
2186 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2187 ret = "CONNECTED";
2188 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2189 ret = "WPA_CONNECTED";
2190 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2191 ret = "WPA_ERROR";
2192 else {
2193 sprintf(buf, "Unknown(%#x)", event);
2194 ret = buf;
2195 }
2196 return ret;
2197}
2198#else
2199static const char *eventstr(enum gelic_lv1_wl_event event)
2200{
2201 return NULL;
2202}
2203#endif
2204static void gelic_wl_event_worker(struct work_struct *work)
2205{
2206 struct gelic_wl_info *wl;
2207 struct gelic_port *port;
2208 u64 event, tmp;
2209 int status;
2210
2211 pr_debug("%s:start\n", __func__);
2212 wl = container_of(work, struct gelic_wl_info, event_work.work);
2213 port = wl_port(wl);
2214 while (1) {
2215 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2216 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2217 &event, &tmp);
2218 if (status) {
2219 if (status != LV1_NO_ENTRY)
2220 pr_debug("%s:wlan event failed %d\n",
2221 __func__, status);
2222 /* got all events */
2223 pr_debug("%s:end\n", __func__);
2224 return;
2225 }
2226 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2227 switch (event) {
2228 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2229 gelic_wl_scan_complete_event(wl);
2230 break;
2231 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2232 case GELIC_LV1_WL_EVENT_DEAUTH:
2233 gelic_wl_disconnect_event(wl, event);
2234 break;
2235 case GELIC_LV1_WL_EVENT_CONNECTED:
2236 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2237 gelic_wl_connected_event(wl, event);
2238 break;
2239 default:
2240 break;
2241 }
2242 } /* while */
2243}
2244/*
2245 * association worker
2246 */
2247static void gelic_wl_assoc_worker(struct work_struct *work)
2248{
2249 struct gelic_wl_info *wl;
2250
2251 struct gelic_wl_scan_info *best_bss;
2252 int ret;
2253
2254 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2255
2256 down(&wl->assoc_stat_lock);
2257
2258 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2259 goto out;
2260
2261 ret = gelic_wl_start_scan(wl, 0);
2262 if (ret == -ERESTARTSYS) {
2263 pr_debug("%s: scan start failed association\n", __func__);
2264 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2265 goto out;
2266 } else if (ret) {
2267 pr_info("%s: scan prerequisite failed\n", __func__);
2268 goto out;
2269 }
2270
2271 /*
2272 * Wait for bss scan completion
2273 * If we have scan list already, gelic_wl_start_scan()
2274 * returns OK and raises the complete. Thus,
2275 * it's ok to wait unconditionally here
2276 */
2277 wait_for_completion(&wl->scan_done);
2278
2279 pr_debug("%s: scan done\n", __func__);
2280 down(&wl->scan_lock);
2281 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2282 gelic_wl_send_iwap_event(wl, NULL);
2283 pr_info("%s: no scan list. association failed\n", __func__);
2284 goto scan_lock_out;
2285 }
2286
2287 /* find best matching bss */
2288 best_bss = gelic_wl_find_best_bss(wl);
2289 if (!best_bss) {
2290 gelic_wl_send_iwap_event(wl, NULL);
2291 pr_info("%s: no bss matched. association failed\n", __func__);
2292 goto scan_lock_out;
2293 }
2294
2295 /* ok, do association */
2296 ret = gelic_wl_associate_bss(wl, best_bss);
2297 if (ret)
2298 pr_info("%s: association failed %d\n", __func__, ret);
2299scan_lock_out:
2300 up(&wl->scan_lock);
2301out:
2302 up(&wl->assoc_stat_lock);
2303}
2304/*
2305 * Interrupt handler
2306 * Called from the ethernet interrupt handler
2307 * Processes wireless specific virtual interrupts only
2308 */
2309void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2310{
2311 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2312
2313 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2314 pr_debug("%s:cmd complete\n", __func__);
2315 complete(&wl->cmd_done_intr);
2316 }
2317
2318 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2319 pr_debug("%s:event received\n", __func__);
2320 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2321 }
2322}
2323
2324/*
2325 * driver helpers
2326 */
2327#define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
2328static const iw_handler gelic_wl_wext_handler[] =
2329{
2330 IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
2331 IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
2332 IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
2333 IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
2334 IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
2335 IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
2336 IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
2337 IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
2338 IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
2339 IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
2340 IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
2341 IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
2342 IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
2343 IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
2344 IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
2345 IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
2346 IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
2347};
2348
2349static struct iw_priv_args gelic_wl_private_args[] =
2350{
2351 {
2352 .cmd = GELIC_WL_PRIV_SET_PSK,
2353 .set_args = IW_PRIV_TYPE_CHAR |
2354 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2355 .name = "set_psk"
2356 },
2357 {
2358 .cmd = GELIC_WL_PRIV_GET_PSK,
2359 .get_args = IW_PRIV_TYPE_CHAR |
2360 (GELIC_WL_EURUS_PSK_MAX_LEN + 2),
2361 .name = "get_psk"
2362 }
2363};
2364
2365static const iw_handler gelic_wl_private_handler[] =
2366{
2367 gelic_wl_priv_set_psk,
2368 gelic_wl_priv_get_psk,
2369};
2370
2371static const struct iw_handler_def gelic_wl_wext_handler_def = {
2372 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2373 .standard = gelic_wl_wext_handler,
2374 .get_wireless_stats = gelic_wl_get_wireless_stats,
2375 .num_private = ARRAY_SIZE(gelic_wl_private_handler),
2376 .num_private_args = ARRAY_SIZE(gelic_wl_private_args),
2377 .private = gelic_wl_private_handler,
2378 .private_args = gelic_wl_private_args,
2379};
2380
2381static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2382{
2383 struct net_device *netdev;
2384 struct gelic_port *port;
2385 struct gelic_wl_info *wl;
2386 unsigned int i;
2387
2388 pr_debug("%s:start\n", __func__);
2389 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2390 sizeof(struct gelic_wl_info));
2391 pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
2392 if (!netdev)
2393 return NULL;
2394
2395 port = netdev_priv(netdev);
2396 port->netdev = netdev;
2397 port->card = card;
2398 port->type = GELIC_PORT_WIRELESS;
2399
2400 wl = port_wl(port);
2401 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2402
2403 /* allocate scan list */
2404 wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
2405 GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
2406
2407 if (!wl->networks)
2408 goto fail_bss;
2409
2410 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2411 if (!wl->eurus_cmd_queue)
2412 goto fail_cmd_workqueue;
2413
2414 wl->event_queue = create_singlethread_workqueue("gelic_event");
2415 if (!wl->event_queue)
2416 goto fail_event_workqueue;
2417
2418 INIT_LIST_HEAD(&wl->network_free_list);
2419 INIT_LIST_HEAD(&wl->network_list);
2420 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2421 list_add_tail(&wl->networks[i].list,
2422 &wl->network_free_list);
2423 init_completion(&wl->cmd_done_intr);
2424
2425 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2426 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2427 init_MUTEX(&wl->scan_lock);
2428 init_MUTEX(&wl->assoc_stat_lock);
2429
2430 init_completion(&wl->scan_done);
2431 /* for the case that no scan request is issued and stop() is called */
2432 complete(&wl->scan_done);
2433
2434 spin_lock_init(&wl->lock);
2435
2436 wl->scan_age = 5*HZ; /* FIXME */
2437
2438 /* buffer for receiving scanned list etc */
2439 BUILD_BUG_ON(PAGE_SIZE <
2440 sizeof(struct gelic_eurus_scan_info) *
2441 GELIC_EURUS_MAX_SCAN);
2442 wl->buf = (void *)get_zeroed_page(GFP_KERNEL);
2443 if (!wl->buf) {
2444 pr_info("%s:buffer allocation failed\n", __func__);
2445 goto fail_getpage;
2446 }
2447 pr_debug("%s:end\n", __func__);
2448 return netdev;
2449
2450fail_getpage:
2451 destroy_workqueue(wl->event_queue);
2452fail_event_workqueue:
2453 destroy_workqueue(wl->eurus_cmd_queue);
2454fail_cmd_workqueue:
2455 kfree(wl->networks);
2456fail_bss:
2457 free_netdev(netdev);
2458 pr_debug("%s:end error\n", __func__);
2459 return NULL;
2460
2461}
2462
2463static void gelic_wl_free(struct gelic_wl_info *wl)
2464{
2465 struct gelic_wl_scan_info *scan_info;
2466 unsigned int i;
2467
2468 pr_debug("%s: <-\n", __func__);
2469
2470 pr_debug("%s: destroy queues\n", __func__);
2471 destroy_workqueue(wl->eurus_cmd_queue);
2472 destroy_workqueue(wl->event_queue);
2473
2474 scan_info = wl->networks;
2475 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2476 kfree(scan_info->hwinfo);
2477 kfree(wl->networks);
2478
2479 free_netdev(port_to_netdev(wl_port(wl)));
2480
2481 pr_debug("%s: ->\n", __func__);
2482}
2483
2484static int gelic_wl_try_associate(struct net_device *netdev)
2485{
2486 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2487 int ret = -1;
2488 unsigned int i;
2489
2490 pr_debug("%s: <-\n", __func__);
2491
2492 /* check constraits for start association */
2493 /* for no access restriction AP */
2494 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2495 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2496 &wl->stat))
2497 goto do_associate;
2498 else {
2499 pr_debug("%s: no wep, not configured\n", __func__);
2500 return ret;
2501 }
2502 }
2503
2504 /* for WEP, one of four keys should be set */
2505 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2506 /* one of keys set */
2507 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2508 if (test_bit(i, &wl->key_enabled))
2509 goto do_associate;
2510 }
2511 pr_debug("%s: WEP, but no key specified\n", __func__);
2512 return ret;
2513 }
2514
2515 /* for WPA[2], psk should be set */
2516 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2517 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2518 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2519 &wl->stat))
2520 goto do_associate;
2521 else {
2522 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2523 __func__);
2524 return ret;
2525 }
2526 }
2527
2528do_associate:
2529 ret = schedule_delayed_work(&wl->assoc_work, 0);
2530 pr_debug("%s: start association work %d\n", __func__, ret);
2531 return ret;
2532}
2533
2534/*
2535 * netdev handlers
2536 */
2537static int gelic_wl_open(struct net_device *netdev)
2538{
2539 struct gelic_card *card = netdev_card(netdev);
2540
2541 pr_debug("%s:->%p\n", __func__, netdev);
2542
2543 gelic_card_up(card);
2544
2545 /* try to associate */
2546 gelic_wl_try_associate(netdev);
2547
2548 netif_start_queue(netdev);
2549
2550 pr_debug("%s:<-\n", __func__);
2551 return 0;
2552}
2553
2554/*
2555 * reset state machine
2556 */
2557static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2558{
2559 struct gelic_wl_scan_info *target;
2560 struct gelic_wl_scan_info *tmp;
2561
2562 /* empty scan list */
2563 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2564 list_move_tail(&target->list, &wl->network_free_list);
2565 }
2566 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2567
2568 /* clear configuration */
2569 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2570 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2571 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2572 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2573
2574 wl->key_enabled = 0;
2575 wl->current_key = 0;
2576
2577 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2578 wl->psk_len = 0;
2579
2580 wl->essid_len = 0;
2581 memset(wl->essid, 0, sizeof(wl->essid));
2582 memset(wl->bssid, 0, sizeof(wl->bssid));
2583 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2584
2585 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2586
2587 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2588 /* all status bit clear */
2589 wl->stat = 0;
2590 return 0;
2591}
2592
2593/*
2594 * Tell eurus to terminate association
2595 */
2596static void gelic_wl_disconnect(struct net_device *netdev)
2597{
2598 struct gelic_port *port = netdev_priv(netdev);
2599 struct gelic_wl_info *wl = port_wl(port);
2600 struct gelic_eurus_cmd *cmd;
2601
2602 /*
2603 * If scann process is running on chip,
2604 * further requests will be rejected
2605 */
2606 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2607 wait_for_completion_timeout(&wl->scan_done, HZ);
2608
2609 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2610 kfree(cmd);
2611 gelic_wl_send_iwap_event(wl, NULL);
2612};
2613
2614static int gelic_wl_stop(struct net_device *netdev)
2615{
2616 struct gelic_port *port = netdev_priv(netdev);
2617 struct gelic_wl_info *wl = port_wl(port);
2618 struct gelic_card *card = netdev_card(netdev);
2619
2620 pr_debug("%s:<-\n", __func__);
2621
2622 /*
2623 * Cancel pending association work.
2624 * event work can run after netdev down
2625 */
2626 cancel_delayed_work(&wl->assoc_work);
2627
2628 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2629 gelic_wl_disconnect(netdev);
2630
2631 /* reset our state machine */
2632 gelic_wl_reset_state(wl);
2633
2634 netif_stop_queue(netdev);
2635
2636 gelic_card_down(card);
2637
2638 pr_debug("%s:->\n", __func__);
2639 return 0;
2640}
2641
2642/* -- */
2643
2644static struct ethtool_ops gelic_wl_ethtool_ops = {
2645 .get_drvinfo = gelic_net_get_drvinfo,
2646 .get_link = gelic_wl_get_link,
2647 .get_tx_csum = ethtool_op_get_tx_csum,
2648 .set_tx_csum = ethtool_op_set_tx_csum,
2649 .get_rx_csum = gelic_net_get_rx_csum,
2650 .set_rx_csum = gelic_net_set_rx_csum,
2651};
2652
2653static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2654{
2655 struct gelic_wl_info *wl;
2656 wl = port_wl(netdev_priv(netdev));
2657 BUG_ON(!wl);
2658 netdev->open = &gelic_wl_open;
2659 netdev->stop = &gelic_wl_stop;
2660 netdev->hard_start_xmit = &gelic_net_xmit;
2661 netdev->set_multicast_list = &gelic_net_set_multi;
2662 netdev->change_mtu = &gelic_net_change_mtu;
2663 netdev->wireless_data = &wl->wireless_data;
2664 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2665 /* tx watchdog */
2666 netdev->tx_timeout = &gelic_net_tx_timeout;
2667 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2668
2669 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2670#ifdef CONFIG_NET_POLL_CONTROLLER
2671 netdev->poll_controller = gelic_net_poll_controller;
2672#endif
2673}
2674
2675/*
2676 * driver probe/remove
2677 */
2678int gelic_wl_driver_probe(struct gelic_card *card)
2679{
2680 int ret;
2681 struct net_device *netdev;
2682
2683 pr_debug("%s:start\n", __func__);
2684
2685 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2686 return 0;
2687 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2688 return 0;
2689
2690 /* alloc netdevice for wireless */
2691 netdev = gelic_wl_alloc(card);
2692 if (!netdev)
2693 return -ENOMEM;
2694
2695 /* setup net_device structure */
4b74850d 2696 SET_NETDEV_DEV(netdev, &card->dev->core);
09dde54c
MM		 2697 gelic_wl_setup_netdev_ops(netdev);
2698
2699 /* setup some of net_device and register it */
2700 ret = gelic_net_setup_netdev(netdev, card);
2701 if (ret)
2702 goto fail_setup;
2703 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2704
2705 /* add enable wireless interrupt */
2706 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2707 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2708 /* to allow wireless commands while both interfaces are down */
2709 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2710 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2711 pr_debug("%s:end\n", __func__);
2712 return 0;
2713
2714fail_setup:
2715 gelic_wl_free(port_wl(netdev_port(netdev)));
2716
2717 return ret;
2718}
2719
2720int gelic_wl_driver_remove(struct gelic_card *card)
2721{
2722 struct gelic_wl_info *wl;
2723 struct net_device *netdev;
2724
2725 pr_debug("%s:start\n", __func__);
2726
2727 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2728 return 0;
2729 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2730 return 0;
2731
2732 netdev = card->netdev[GELIC_PORT_WIRELESS];
2733 wl = port_wl(netdev_priv(netdev));
2734
2735 /* if the interface was not up, but associated */
2736 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2737 gelic_wl_disconnect(netdev);
2738
2739 complete(&wl->cmd_done_intr);
2740
2741 /* cancel all work queue */
2742 cancel_delayed_work(&wl->assoc_work);
2743 cancel_delayed_work(&wl->event_work);
2744 flush_workqueue(wl->eurus_cmd_queue);
2745 flush_workqueue(wl->event_queue);
2746
2747 unregister_netdev(netdev);
2748
2749 /* disable wireless interrupt */
2750 pr_debug("%s: disable intr\n", __func__);
2751 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2752 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2753 /* free bss list, netdev*/
2754 gelic_wl_free(wl);
2755 pr_debug("%s:end\n", __func__);
2756 return 0;
2757}
Linux 6.x block layer and io_uring tree(s)