1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * PS3 gelic network driver.
4 *
5 * Copyright (C) 2007 Sony Computer Entertainment Inc.
6 * Copyright 2007 Sony Corporation
7 */
8 #undef DEBUG
9
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/slab.h>
13
14 #include <linux/etherdevice.h>
15 #include <linux/ethtool.h>
16 #include <linux/if_vlan.h>
17
18 #include <linux/in.h>
19 #include <linux/ip.h>
20 #include <linux/tcp.h>
21 #include <linux/wireless.h>
22 #include <linux/ieee80211.h>
23 #include <linux/if_arp.h>
24 #include <linux/ctype.h>
25 #include <linux/string.h>
26 #include <net/iw_handler.h>
27
28 #include <linux/dma-mapping.h>
29 #include <net/checksum.h>
30 #include <asm/firmware.h>
31 #include <asm/ps3.h>
32 #include <asm/lv1call.h>
33
34 #include "ps3_gelic_net.h"
35 #include "ps3_gelic_wireless.h"
36
37
38 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
39 u8 *essid, size_t essid_len);
40 static int gelic_wl_try_associate(struct net_device *netdev);
41
42 /*
43 * tables
44 */
45
46 /* 802.11b/g channel to freq in MHz */
47 static const int channel_freq[] = {
48 2412, 2417, 2422, 2427, 2432,
49 2437, 2442, 2447, 2452, 2457,
50 2462, 2467, 2472, 2484
51 };
52 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
53
54 /* in bps */
55 static const int bitrate_list[] = {
56 1000000,
57 2000000,
58 5500000,
59 11000000,
60 6000000,
61 9000000,
62 12000000,
63 18000000,
64 24000000,
65 36000000,
66 48000000,
67 54000000
68 };
69 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
70
71 /*
72 * wpa2 support requires the hypervisor version 2.0 or later
73 */
wpa2_capable(void)74 static inline int wpa2_capable(void)
75 {
76 return 0 <= ps3_compare_firmware_version(2, 0, 0);
77 }
78
precise_ie(void)79 static inline int precise_ie(void)
80 {
81 return 0 <= ps3_compare_firmware_version(2, 2, 0);
82 }
83 /*
84 * post_eurus_cmd helpers
85 */
86 struct eurus_cmd_arg_info {
87 int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
88 int post_arg; /* command requires arg1, arg2 at GET_RESULT */
89 };
90
91 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
92 [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
93 [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
94 [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
95 [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
96 [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
97 [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
98 [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
99 [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
100 [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
101 };
102
103 #ifdef DEBUG
cmdstr(enum gelic_eurus_command ix)104 static const char *cmdstr(enum gelic_eurus_command ix)
105 {
106 switch (ix) {
107 case GELIC_EURUS_CMD_ASSOC:
108 return "ASSOC";
109 case GELIC_EURUS_CMD_DISASSOC:
110 return "DISASSOC";
111 case GELIC_EURUS_CMD_START_SCAN:
112 return "SCAN";
113 case GELIC_EURUS_CMD_GET_SCAN:
114 return "GET SCAN";
115 case GELIC_EURUS_CMD_SET_COMMON_CFG:
116 return "SET_COMMON_CFG";
117 case GELIC_EURUS_CMD_GET_COMMON_CFG:
118 return "GET_COMMON_CFG";
119 case GELIC_EURUS_CMD_SET_WEP_CFG:
120 return "SET_WEP_CFG";
121 case GELIC_EURUS_CMD_GET_WEP_CFG:
122 return "GET_WEP_CFG";
123 case GELIC_EURUS_CMD_SET_WPA_CFG:
124 return "SET_WPA_CFG";
125 case GELIC_EURUS_CMD_GET_WPA_CFG:
126 return "GET_WPA_CFG";
127 case GELIC_EURUS_CMD_GET_RSSI_CFG:
128 return "GET_RSSI";
129 default:
130 break;
131 }
132 return "";
133 };
134 #else
cmdstr(enum gelic_eurus_command ix)135 static inline const char *cmdstr(enum gelic_eurus_command ix)
136 {
137 return "";
138 }
139 #endif
140
141 /* synchronously do eurus commands */
gelic_eurus_sync_cmd_worker(struct work_struct * work)142 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
143 {
144 struct gelic_eurus_cmd *cmd;
145 struct gelic_card *card;
146 struct gelic_wl_info *wl;
147
148 u64 arg1, arg2;
149
150 pr_debug("%s: <-\n", __func__);
151 cmd = container_of(work, struct gelic_eurus_cmd, work);
152 BUG_ON(cmd_info[cmd->cmd].pre_arg &&
153 cmd_info[cmd->cmd].post_arg);
154 wl = cmd->wl;
155 card = port_to_card(wl_port(wl));
156
157 if (cmd_info[cmd->cmd].pre_arg) {
158 arg1 = (cmd->buffer) ?
159 ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
160 0;
161 arg2 = cmd->buf_size;
162 } else {
163 arg1 = 0;
164 arg2 = 0;
165 }
166 init_completion(&wl->cmd_done_intr);
167 pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
168 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
169 GELIC_LV1_POST_WLAN_CMD,
170 cmd->cmd, arg1, arg2,
171 &cmd->tag, &cmd->size);
172 if (cmd->status) {
173 complete(&cmd->done);
174 pr_info("%s: cmd issue failed\n", __func__);
175 return;
176 }
177
178 wait_for_completion(&wl->cmd_done_intr);
179
180 if (cmd_info[cmd->cmd].post_arg) {
181 arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
182 arg2 = cmd->buf_size;
183 } else {
184 arg1 = 0;
185 arg2 = 0;
186 }
187
188 cmd->status = lv1_net_control(bus_id(card), dev_id(card),
189 GELIC_LV1_GET_WLAN_CMD_RESULT,
190 cmd->tag, arg1, arg2,
191 &cmd->cmd_status, &cmd->size);
192 #ifdef DEBUG
193 if (cmd->status || cmd->cmd_status) {
194 pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
195 cmd->tag, arg1, arg2);
196 pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
197 __func__, cmd->status, cmd->cmd_status, cmd->size);
198 }
199 #endif
200 complete(&cmd->done);
201 pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
202 }
203
gelic_eurus_sync_cmd(struct gelic_wl_info * wl,unsigned int eurus_cmd,void * buffer,unsigned int buf_size)204 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
205 unsigned int eurus_cmd,
206 void *buffer,
207 unsigned int buf_size)
208 {
209 struct gelic_eurus_cmd *cmd;
210
211 /* allocate cmd */
212 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
213 if (!cmd)
214 return NULL;
215
216 /* initialize members */
217 cmd->cmd = eurus_cmd;
218 cmd->buffer = buffer;
219 cmd->buf_size = buf_size;
220 cmd->wl = wl;
221 INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
222 init_completion(&cmd->done);
223 queue_work(wl->eurus_cmd_queue, &cmd->work);
224
225 /* wait for command completion */
226 wait_for_completion(&cmd->done);
227
228 return cmd;
229 }
230
gelic_wl_get_link(struct net_device * netdev)231 static u32 gelic_wl_get_link(struct net_device *netdev)
232 {
233 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
234 u32 ret;
235
236 pr_debug("%s: <-\n", __func__);
237 mutex_lock(&wl->assoc_stat_lock);
238 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
239 ret = 1;
240 else
241 ret = 0;
242 mutex_unlock(&wl->assoc_stat_lock);
243 pr_debug("%s: ->\n", __func__);
244 return ret;
245 }
246
gelic_wl_send_iwap_event(struct gelic_wl_info * wl,u8 * bssid)247 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
248 {
249 union iwreq_data data;
250
251 memset(&data, 0, sizeof(data));
252 if (bssid)
253 memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
254 data.ap_addr.sa_family = ARPHRD_ETHER;
255 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
256 &data, NULL);
257 }
258
259 /*
260 * wireless extension handlers and helpers
261 */
262
263 /* SIOGIWNAME */
gelic_wl_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * iwreq,char * extra)264 static int gelic_wl_get_name(struct net_device *dev,
265 struct iw_request_info *info,
266 union iwreq_data *iwreq, char *extra)
267 {
268 strcpy(iwreq->name, "IEEE 802.11bg");
269 return 0;
270 }
271
gelic_wl_get_ch_info(struct gelic_wl_info * wl)272 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
273 {
274 struct gelic_card *card = port_to_card(wl_port(wl));
275 u64 ch_info_raw, tmp;
276 int status;
277
278 if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
279 status = lv1_net_control(bus_id(card), dev_id(card),
280 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
281 &ch_info_raw,
282 &tmp);
283 /* some fw versions may return error */
284 if (status) {
285 if (status != LV1_NO_ENTRY)
286 pr_info("%s: available ch unknown\n", __func__);
287 wl->ch_info = 0x07ff;/* 11 ch */
288 } else
289 /* 16 bits of MSB has available channels */
290 wl->ch_info = ch_info_raw >> 48;
291 }
292 }
293
294 /* SIOGIWRANGE */
gelic_wl_get_range(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * iwreq,char * extra)295 static int gelic_wl_get_range(struct net_device *netdev,
296 struct iw_request_info *info,
297 union iwreq_data *iwreq, char *extra)
298 {
299 struct iw_point *point = &iwreq->data;
300 struct iw_range *range = (struct iw_range *)extra;
301 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
302 unsigned int i, chs;
303
304 pr_debug("%s: <-\n", __func__);
305 point->length = sizeof(struct iw_range);
306 memset(range, 0, sizeof(struct iw_range));
307
308 range->we_version_compiled = WIRELESS_EXT;
309 range->we_version_source = 22;
310
311 /* available channels and frequencies */
312 gelic_wl_get_ch_info(wl);
313
314 for (i = 0, chs = 0;
315 i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
316 if (wl->ch_info & (1 << i)) {
317 range->freq[chs].i = i + 1;
318 range->freq[chs].m = channel_freq[i];
319 range->freq[chs].e = 6;
320 chs++;
321 }
322 range->num_frequency = chs;
323 range->old_num_frequency = chs;
324 range->num_channels = chs;
325 range->old_num_channels = chs;
326
327 /* bitrates */
328 for (i = 0; i < NUM_BITRATES; i++)
329 range->bitrate[i] = bitrate_list[i];
330 range->num_bitrates = i;
331
332 /* signal levels */
333 range->max_qual.qual = 100; /* relative value */
334 range->max_qual.level = 100;
335 range->avg_qual.qual = 50;
336 range->avg_qual.level = 50;
337 range->sensitivity = 0;
338
339 /* Event capability */
340 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
341 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
342 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
343
344 /* encryption capability */
345 range->enc_capa = IW_ENC_CAPA_WPA |
346 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
347 IW_ENC_CAPA_4WAY_HANDSHAKE;
348 if (wpa2_capable())
349 range->enc_capa |= IW_ENC_CAPA_WPA2;
350 range->encoding_size[0] = 5; /* 40bit WEP */
351 range->encoding_size[1] = 13; /* 104bit WEP */
352 range->encoding_size[2] = 32; /* WPA-PSK */
353 range->num_encoding_sizes = 3;
354 range->max_encoding_tokens = GELIC_WEP_KEYS;
355
356 /* scan capability */
357 range->scan_capa = IW_SCAN_CAPA_ESSID;
358
359 pr_debug("%s: ->\n", __func__);
360 return 0;
361
362 }
363
364 /* SIOC{G,S}IWSCAN */
gelic_wl_set_scan(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)365 static int gelic_wl_set_scan(struct net_device *netdev,
366 struct iw_request_info *info,
367 union iwreq_data *wrqu, char *extra)
368 {
369 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
370 struct iw_scan_req *req;
371 u8 *essid = NULL;
372 size_t essid_len = 0;
373
374 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
375 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
376 req = (struct iw_scan_req*)extra;
377 essid = req->essid;
378 essid_len = req->essid_len;
379 pr_debug("%s: ESSID scan =%s\n", __func__, essid);
380 }
381 return gelic_wl_start_scan(wl, 1, essid, essid_len);
382 }
383
384 #define OUI_LEN 3
385 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
386 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
387
388 /*
389 * synthesize WPA/RSN IE data
390 * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
391 * for the format
392 */
gelic_wl_synthesize_ie(u8 * buf,struct gelic_eurus_scan_info * scan)393 static size_t gelic_wl_synthesize_ie(u8 *buf,
394 struct gelic_eurus_scan_info *scan)
395 {
396
397 const u8 *oui_header;
398 u8 *start = buf;
399 int rsn;
400 int ccmp;
401
402 pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
403 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
404 case GELIC_EURUS_SCAN_SEC_WPA:
405 rsn = 0;
406 break;
407 case GELIC_EURUS_SCAN_SEC_WPA2:
408 rsn = 1;
409 break;
410 default:
411 /* WEP or none. No IE returned */
412 return 0;
413 }
414
415 switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
416 case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
417 ccmp = 0;
418 break;
419 case GELIC_EURUS_SCAN_SEC_WPA_AES:
420 ccmp = 1;
421 break;
422 default:
423 if (rsn) {
424 ccmp = 1;
425 pr_info("%s: no cipher info. defaulted to CCMP\n",
426 __func__);
427 } else {
428 ccmp = 0;
429 pr_info("%s: no cipher info. defaulted to TKIP\n",
430 __func__);
431 }
432 }
433
434 if (rsn)
435 oui_header = rsn_oui;
436 else
437 oui_header = wpa_oui;
438
439 /* element id */
440 if (rsn)
441 *buf++ = WLAN_EID_RSN;
442 else
443 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
444
445 /* length filed; set later */
446 buf++;
447
448 /* wpa special header */
449 if (!rsn) {
450 memcpy(buf, wpa_oui, OUI_LEN);
451 buf += OUI_LEN;
452 *buf++ = 0x01;
453 }
454
455 /* version */
456 *buf++ = 0x01; /* version 1.0 */
457 *buf++ = 0x00;
458
459 /* group cipher */
460 memcpy(buf, oui_header, OUI_LEN);
461 buf += OUI_LEN;
462
463 if (ccmp)
464 *buf++ = 0x04; /* CCMP */
465 else
466 *buf++ = 0x02; /* TKIP */
467
468 /* pairwise key count always 1 */
469 *buf++ = 0x01;
470 *buf++ = 0x00;
471
472 /* pairwise key suit */
473 memcpy(buf, oui_header, OUI_LEN);
474 buf += OUI_LEN;
475 if (ccmp)
476 *buf++ = 0x04; /* CCMP */
477 else
478 *buf++ = 0x02; /* TKIP */
479
480 /* AKM count is 1 */
481 *buf++ = 0x01;
482 *buf++ = 0x00;
483
484 /* AKM suite is assumed as PSK*/
485 memcpy(buf, oui_header, OUI_LEN);
486 buf += OUI_LEN;
487 *buf++ = 0x02; /* PSK */
488
489 /* RSN capabilities is 0 */
490 *buf++ = 0x00;
491 *buf++ = 0x00;
492
493 /* set length field */
494 start[1] = (buf - start - 2);
495
496 pr_debug("%s: ->\n", __func__);
497 return buf - start;
498 }
499
500 struct ie_item {
501 u8 *data;
502 u8 len;
503 };
504
505 struct ie_info {
506 struct ie_item wpa;
507 struct ie_item rsn;
508 };
509
gelic_wl_parse_ie(u8 * data,size_t len,struct ie_info * ie_info)510 static void gelic_wl_parse_ie(u8 *data, size_t len,
511 struct ie_info *ie_info)
512 {
513 size_t data_left = len;
514 u8 *pos = data;
515 u8 item_len;
516 u8 item_id;
517
518 pr_debug("%s: data=%p len=%ld\n", __func__,
519 data, len);
520 memset(ie_info, 0, sizeof(struct ie_info));
521
522 while (2 <= data_left) {
523 item_id = *pos++;
524 item_len = *pos++;
525 data_left -= 2;
526
527 if (data_left < item_len)
528 break;
529
530 switch (item_id) {
531 case WLAN_EID_VENDOR_SPECIFIC:
532 if ((OUI_LEN + 1 <= item_len) &&
533 !memcmp(pos, wpa_oui, OUI_LEN) &&
534 pos[OUI_LEN] == 0x01) {
535 ie_info->wpa.data = pos - 2;
536 ie_info->wpa.len = item_len + 2;
537 }
538 break;
539 case WLAN_EID_RSN:
540 ie_info->rsn.data = pos - 2;
541 /* length includes the header */
542 ie_info->rsn.len = item_len + 2;
543 break;
544 default:
545 pr_debug("%s: ignore %#x,%d\n", __func__,
546 item_id, item_len);
547 break;
548 }
549 pos += item_len;
550 data_left -= item_len;
551 }
552 pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
553 ie_info->wpa.data, ie_info->wpa.len,
554 ie_info->rsn.data, ie_info->rsn.len);
555 }
556
557
558 /*
559 * translate the scan informations from hypervisor to a
560 * independent format
561 */
gelic_wl_translate_scan(struct net_device * netdev,struct iw_request_info * info,char * ev,char * stop,struct gelic_wl_scan_info * network)562 static char *gelic_wl_translate_scan(struct net_device *netdev,
563 struct iw_request_info *info,
564 char *ev,
565 char *stop,
566 struct gelic_wl_scan_info *network)
567 {
568 struct iw_event iwe;
569 struct gelic_eurus_scan_info *scan = network->hwinfo;
570 char *tmp;
571 u8 rate;
572 unsigned int i, j, len;
573 u8 buf[64]; /* arbitrary size large enough */
574
575 pr_debug("%s: <-\n", __func__);
576
577 /* first entry should be AP's mac address */
578 iwe.cmd = SIOCGIWAP;
579 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
580 memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
581 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
582
583 /* ESSID */
584 iwe.cmd = SIOCGIWESSID;
585 iwe.u.data.flags = 1;
586 iwe.u.data.length = strnlen(scan->essid, 32);
587 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
588
589 /* FREQUENCY */
590 iwe.cmd = SIOCGIWFREQ;
591 iwe.u.freq.m = be16_to_cpu(scan->channel);
592 iwe.u.freq.e = 0; /* table value in MHz */
593 iwe.u.freq.i = 0;
594 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
595
596 /* RATES */
597 iwe.cmd = SIOCGIWRATE;
598 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
599 /* to stuff multiple values in one event */
600 tmp = ev + iwe_stream_lcp_len(info);
601 /* put them in ascendant order (older is first) */
602 i = 0;
603 j = 0;
604 pr_debug("%s: rates=%d rate=%d\n", __func__,
605 network->rate_len, network->rate_ext_len);
606 while (i < network->rate_len) {
607 if (j < network->rate_ext_len &&
608 ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
609 rate = scan->ext_rate[j++] & 0x7f;
610 else
611 rate = scan->rate[i++] & 0x7f;
612 iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
613 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
614 IW_EV_PARAM_LEN);
615 }
616 while (j < network->rate_ext_len) {
617 iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
618 tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
619 IW_EV_PARAM_LEN);
620 }
621 /* Check if we added any rate */
622 if (iwe_stream_lcp_len(info) < (tmp - ev))
623 ev = tmp;
624
625 /* ENCODE */
626 iwe.cmd = SIOCGIWENCODE;
627 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
628 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
629 else
630 iwe.u.data.flags = IW_ENCODE_DISABLED;
631 iwe.u.data.length = 0;
632 ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
633
634 /* MODE */
635 iwe.cmd = SIOCGIWMODE;
636 if (be16_to_cpu(scan->capability) &
637 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
638 if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
639 iwe.u.mode = IW_MODE_MASTER;
640 else
641 iwe.u.mode = IW_MODE_ADHOC;
642 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
643 }
644
645 /* QUAL */
646 iwe.cmd = IWEVQUAL;
647 iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
648 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
649 iwe.u.qual.level = be16_to_cpu(scan->rssi);
650 iwe.u.qual.qual = be16_to_cpu(scan->rssi);
651 iwe.u.qual.noise = 0;
652 ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
653
654 /* RSN */
655 memset(&iwe, 0, sizeof(iwe));
656 if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
657 /* If wpa[2] capable station, synthesize IE and put it */
658 len = gelic_wl_synthesize_ie(buf, scan);
659 if (len) {
660 iwe.cmd = IWEVGENIE;
661 iwe.u.data.length = len;
662 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
663 }
664 } else {
665 /* this scan info has IE data */
666 struct ie_info ie_info;
667 size_t data_len;
668
669 data_len = be16_to_cpu(scan->size) - sizeof(*scan);
670
671 gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
672
673 if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
674 memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
675 iwe.cmd = IWEVGENIE;
676 iwe.u.data.length = ie_info.wpa.len;
677 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
678 }
679
680 if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
681 memset(&iwe, 0, sizeof(iwe));
682 memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
683 iwe.cmd = IWEVGENIE;
684 iwe.u.data.length = ie_info.rsn.len;
685 ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
686 }
687 }
688
689 pr_debug("%s: ->\n", __func__);
690 return ev;
691 }
692
693
gelic_wl_get_scan(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)694 static int gelic_wl_get_scan(struct net_device *netdev,
695 struct iw_request_info *info,
696 union iwreq_data *wrqu, char *extra)
697 {
698 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
699 struct gelic_wl_scan_info *scan_info;
700 char *ev = extra;
701 char *stop = ev + wrqu->data.length;
702 int ret = 0;
703 unsigned long this_time = jiffies;
704
705 pr_debug("%s: <-\n", __func__);
706 if (mutex_lock_interruptible(&wl->scan_lock))
707 return -EAGAIN;
708
709 switch (wl->scan_stat) {
710 case GELIC_WL_SCAN_STAT_SCANNING:
711 /* If a scan in progress, caller should call me again */
712 ret = -EAGAIN;
713 goto out;
714 case GELIC_WL_SCAN_STAT_INIT:
715 /* last scan request failed or never issued */
716 ret = -ENODEV;
717 goto out;
718 case GELIC_WL_SCAN_STAT_GOT_LIST:
719 /* ok, use current list */
720 break;
721 }
722
723 list_for_each_entry(scan_info, &wl->network_list, list) {
724 if (wl->scan_age == 0 ||
725 time_after(scan_info->last_scanned + wl->scan_age,
726 this_time))
727 ev = gelic_wl_translate_scan(netdev, info,
728 ev, stop,
729 scan_info);
730 else
731 pr_debug("%s:entry too old\n", __func__);
732
733 if (stop - ev <= IW_EV_ADDR_LEN) {
734 ret = -E2BIG;
735 goto out;
736 }
737 }
738
739 wrqu->data.length = ev - extra;
740 wrqu->data.flags = 0;
741 out:
742 mutex_unlock(&wl->scan_lock);
743 pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
744 return ret;
745 }
746
747 #ifdef DEBUG
scan_list_dump(struct gelic_wl_info * wl)748 static void scan_list_dump(struct gelic_wl_info *wl)
749 {
750 struct gelic_wl_scan_info *scan_info;
751 int i;
752
753 i = 0;
754 list_for_each_entry(scan_info, &wl->network_list, list) {
755 pr_debug("%s: item %d\n", __func__, i++);
756 pr_debug("valid=%d eurusindex=%d last=%lx\n",
757 scan_info->valid, scan_info->eurus_index,
758 scan_info->last_scanned);
759 pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
760 scan_info->rate_len, scan_info->rate_ext_len,
761 scan_info->essid_len);
762 /* -- */
763 pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
764 pr_debug("essid=%s\n", scan_info->hwinfo->essid);
765 }
766 }
767 #endif
768
gelic_wl_set_auth(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)769 static int gelic_wl_set_auth(struct net_device *netdev,
770 struct iw_request_info *info,
771 union iwreq_data *data, char *extra)
772 {
773 struct iw_param *param = &data->param;
774 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
775 unsigned long irqflag;
776 int ret = 0;
777
778 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
779 spin_lock_irqsave(&wl->lock, irqflag);
780 switch (param->flags & IW_AUTH_INDEX) {
781 case IW_AUTH_WPA_VERSION:
782 if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
783 pr_debug("%s: NO WPA selected\n", __func__);
784 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
785 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
786 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
787 }
788 if (param->value & IW_AUTH_WPA_VERSION_WPA) {
789 pr_debug("%s: WPA version 1 selected\n", __func__);
790 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
791 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
792 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
793 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
794 }
795 if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
796 /*
797 * As the hypervisor may not tell the cipher
798 * information of the AP if it is WPA2,
799 * you will not decide suitable cipher from
800 * its beacon.
801 * You should have knowledge about the AP's
802 * cipher information in other method prior to
803 * the association.
804 */
805 if (!precise_ie())
806 pr_info("%s: WPA2 may not work\n", __func__);
807 if (wpa2_capable()) {
808 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
809 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
810 wl->pairwise_cipher_method =
811 GELIC_WL_CIPHER_AES;
812 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
813 } else
814 ret = -EINVAL;
815 }
816 break;
817
818 case IW_AUTH_CIPHER_PAIRWISE:
819 if (param->value &
820 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
821 pr_debug("%s: WEP selected\n", __func__);
822 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
823 }
824 if (param->value & IW_AUTH_CIPHER_TKIP) {
825 pr_debug("%s: TKIP selected\n", __func__);
826 wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
827 }
828 if (param->value & IW_AUTH_CIPHER_CCMP) {
829 pr_debug("%s: CCMP selected\n", __func__);
830 wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
831 }
832 if (param->value & IW_AUTH_CIPHER_NONE) {
833 pr_debug("%s: no auth selected\n", __func__);
834 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
835 }
836 break;
837 case IW_AUTH_CIPHER_GROUP:
838 if (param->value &
839 (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
840 pr_debug("%s: WEP selected\n", __func__);
841 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
842 }
843 if (param->value & IW_AUTH_CIPHER_TKIP) {
844 pr_debug("%s: TKIP selected\n", __func__);
845 wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
846 }
847 if (param->value & IW_AUTH_CIPHER_CCMP) {
848 pr_debug("%s: CCMP selected\n", __func__);
849 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
850 }
851 if (param->value & IW_AUTH_CIPHER_NONE) {
852 pr_debug("%s: no auth selected\n", __func__);
853 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
854 }
855 break;
856 case IW_AUTH_80211_AUTH_ALG:
857 if (param->value & IW_AUTH_ALG_SHARED_KEY) {
858 pr_debug("%s: shared key specified\n", __func__);
859 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
860 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
861 pr_debug("%s: open system specified\n", __func__);
862 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
863 } else
864 ret = -EINVAL;
865 break;
866
867 case IW_AUTH_WPA_ENABLED:
868 if (param->value) {
869 pr_debug("%s: WPA enabled\n", __func__);
870 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
871 } else {
872 pr_debug("%s: WPA disabled\n", __func__);
873 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
874 }
875 break;
876
877 case IW_AUTH_KEY_MGMT:
878 if (param->value & IW_AUTH_KEY_MGMT_PSK)
879 break;
880 fallthrough;
881 default:
882 ret = -EOPNOTSUPP;
883 break;
884 }
885
886 if (!ret)
887 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
888
889 spin_unlock_irqrestore(&wl->lock, irqflag);
890 pr_debug("%s: -> %d\n", __func__, ret);
891 return ret;
892 }
893
gelic_wl_get_auth(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * iwreq,char * extra)894 static int gelic_wl_get_auth(struct net_device *netdev,
895 struct iw_request_info *info,
896 union iwreq_data *iwreq, char *extra)
897 {
898 struct iw_param *param = &iwreq->param;
899 struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
900 unsigned long irqflag;
901 int ret = 0;
902
903 pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
904 spin_lock_irqsave(&wl->lock, irqflag);
905 switch (param->flags & IW_AUTH_INDEX) {
906 case IW_AUTH_WPA_VERSION:
907 switch (wl->wpa_level) {
908 case GELIC_WL_WPA_LEVEL_WPA:
909 param->value |= IW_AUTH_WPA_VERSION_WPA;
910 break;
911 case GELIC_WL_WPA_LEVEL_WPA2:
912 param->value |= IW_AUTH_WPA_VERSION_WPA2;
913 break;
914 default:
915 param->value |= IW_AUTH_WPA_VERSION_DISABLED;
916 }
917 break;
918
919 case IW_AUTH_80211_AUTH_ALG:
920 if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
921 param->value = IW_AUTH_ALG_SHARED_KEY;
922 else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
923 param->value = IW_AUTH_ALG_OPEN_SYSTEM;
924 break;
925
926 case IW_AUTH_WPA_ENABLED:
927 switch (wl->wpa_level) {
928 case GELIC_WL_WPA_LEVEL_WPA:
929 case GELIC_WL_WPA_LEVEL_WPA2:
930 param->value = 1;
931 break;
932 default:
933 param->value = 0;
934 break;
935 }
936 break;
937 default:
938 ret = -EOPNOTSUPP;
939 }
940
941 spin_unlock_irqrestore(&wl->lock, irqflag);
942 pr_debug("%s: -> %d\n", __func__, ret);
943 return ret;
944 }
945
946 /* SIOC{S,G}IWESSID */
gelic_wl_set_essid(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)947 static int gelic_wl_set_essid(struct net_device *netdev,
948 struct iw_request_info *info,
949 union iwreq_data *data, char *extra)
950 {
951 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
952 unsigned long irqflag;
953
954 pr_debug("%s: <- l=%d f=%d\n", __func__,
955 data->essid.length, data->essid.flags);
956 if (IW_ESSID_MAX_SIZE < data->essid.length)
957 return -EINVAL;
958
959 spin_lock_irqsave(&wl->lock, irqflag);
960 if (data->essid.flags) {
961 wl->essid_len = data->essid.length;
962 memcpy(wl->essid, extra, wl->essid_len);
963 pr_debug("%s: essid = '%s'\n", __func__, extra);
964 set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
965 } else {
966 pr_debug("%s: ESSID any\n", __func__);
967 clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
968 }
969 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
970 spin_unlock_irqrestore(&wl->lock, irqflag);
971
972
973 gelic_wl_try_associate(netdev); /* FIXME */
974 pr_debug("%s: ->\n", __func__);
975 return 0;
976 }
977
gelic_wl_get_essid(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)978 static int gelic_wl_get_essid(struct net_device *netdev,
979 struct iw_request_info *info,
980 union iwreq_data *data, char *extra)
981 {
982 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
983 unsigned long irqflag;
984
985 pr_debug("%s: <-\n", __func__);
986 mutex_lock(&wl->assoc_stat_lock);
987 spin_lock_irqsave(&wl->lock, irqflag);
988 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
989 wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
990 memcpy(extra, wl->essid, wl->essid_len);
991 data->essid.length = wl->essid_len;
992 data->essid.flags = 1;
993 } else
994 data->essid.flags = 0;
995
996 mutex_unlock(&wl->assoc_stat_lock);
997 spin_unlock_irqrestore(&wl->lock, irqflag);
998 pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
999
1000 return 0;
1001 }
1002
1003 /* SIO{S,G}IWENCODE */
gelic_wl_set_encode(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1004 static int gelic_wl_set_encode(struct net_device *netdev,
1005 struct iw_request_info *info,
1006 union iwreq_data *data, char *extra)
1007 {
1008 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1009 struct iw_point *enc = &data->encoding;
1010 __u16 flags;
1011 unsigned long irqflag;
1012 int key_index, index_specified;
1013 int ret = 0;
1014
1015 pr_debug("%s: <-\n", __func__);
1016 flags = enc->flags & IW_ENCODE_FLAGS;
1017 key_index = enc->flags & IW_ENCODE_INDEX;
1018
1019 pr_debug("%s: key_index = %d\n", __func__, key_index);
1020 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1021 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1022
1023 if (GELIC_WEP_KEYS < key_index)
1024 return -EINVAL;
1025
1026 spin_lock_irqsave(&wl->lock, irqflag);
1027 if (key_index) {
1028 index_specified = 1;
1029 key_index--;
1030 } else {
1031 index_specified = 0;
1032 key_index = wl->current_key;
1033 }
1034
1035 if (flags & IW_ENCODE_NOKEY) {
1036 /* if just IW_ENCODE_NOKEY, change current key index */
1037 if (!flags && index_specified) {
1038 wl->current_key = key_index;
1039 goto done;
1040 }
1041
1042 if (flags & IW_ENCODE_DISABLED) {
1043 if (!index_specified) {
1044 /* disable encryption */
1045 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1046 wl->pairwise_cipher_method =
1047 GELIC_WL_CIPHER_NONE;
1048 /* invalidate all key */
1049 wl->key_enabled = 0;
1050 } else
1051 clear_bit(key_index, &wl->key_enabled);
1052 }
1053
1054 if (flags & IW_ENCODE_OPEN)
1055 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1056 if (flags & IW_ENCODE_RESTRICTED) {
1057 pr_info("%s: shared key mode enabled\n", __func__);
1058 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1059 }
1060 } else {
1061 if (IW_ENCODING_TOKEN_MAX < enc->length) {
1062 ret = -EINVAL;
1063 goto done;
1064 }
1065 wl->key_len[key_index] = enc->length;
1066 memcpy(wl->key[key_index], extra, enc->length);
1067 set_bit(key_index, &wl->key_enabled);
1068 wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1069 wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1070 }
1071 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1072 done:
1073 spin_unlock_irqrestore(&wl->lock, irqflag);
1074 pr_debug("%s: ->\n", __func__);
1075 return ret;
1076 }
1077
gelic_wl_get_encode(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1078 static int gelic_wl_get_encode(struct net_device *netdev,
1079 struct iw_request_info *info,
1080 union iwreq_data *data, char *extra)
1081 {
1082 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1083 struct iw_point *enc = &data->encoding;
1084 unsigned long irqflag;
1085 unsigned int key_index;
1086 int ret = 0;
1087
1088 pr_debug("%s: <-\n", __func__);
1089 key_index = enc->flags & IW_ENCODE_INDEX;
1090 pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1091 enc->flags, enc->pointer, enc->length, extra);
1092 if (GELIC_WEP_KEYS < key_index)
1093 return -EINVAL;
1094
1095 spin_lock_irqsave(&wl->lock, irqflag);
1096 if (key_index)
1097 key_index--;
1098 else
1099 key_index = wl->current_key;
1100
1101 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1102 switch (wl->auth_method) {
1103 case GELIC_EURUS_AUTH_OPEN:
1104 enc->flags = IW_ENCODE_OPEN;
1105 break;
1106 case GELIC_EURUS_AUTH_SHARED:
1107 enc->flags = IW_ENCODE_RESTRICTED;
1108 break;
1109 }
1110 } else
1111 enc->flags = IW_ENCODE_DISABLED;
1112
1113 if (test_bit(key_index, &wl->key_enabled)) {
1114 if (enc->length < wl->key_len[key_index]) {
1115 ret = -EINVAL;
1116 goto done;
1117 }
1118 enc->length = wl->key_len[key_index];
1119 memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1120 } else {
1121 enc->length = 0;
1122 enc->flags |= IW_ENCODE_NOKEY;
1123 }
1124 enc->flags |= key_index + 1;
1125 pr_debug("%s: -> flag=%x len=%d\n", __func__,
1126 enc->flags, enc->length);
1127
1128 done:
1129 spin_unlock_irqrestore(&wl->lock, irqflag);
1130 return ret;
1131 }
1132
1133 /* SIOC{S,G}IWAP */
gelic_wl_set_ap(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1134 static int gelic_wl_set_ap(struct net_device *netdev,
1135 struct iw_request_info *info,
1136 union iwreq_data *data, char *extra)
1137 {
1138 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1139 unsigned long irqflag;
1140
1141 pr_debug("%s: <-\n", __func__);
1142 if (data->ap_addr.sa_family != ARPHRD_ETHER)
1143 return -EINVAL;
1144
1145 spin_lock_irqsave(&wl->lock, irqflag);
1146 if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1147 memcpy(wl->bssid, data->ap_addr.sa_data,
1148 ETH_ALEN);
1149 set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1150 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1151 pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1152 } else {
1153 pr_debug("%s: clear bssid\n", __func__);
1154 clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1155 eth_zero_addr(wl->bssid);
1156 }
1157 spin_unlock_irqrestore(&wl->lock, irqflag);
1158 pr_debug("%s: ->\n", __func__);
1159 return 0;
1160 }
1161
gelic_wl_get_ap(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1162 static int gelic_wl_get_ap(struct net_device *netdev,
1163 struct iw_request_info *info,
1164 union iwreq_data *data, char *extra)
1165 {
1166 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1167 unsigned long irqflag;
1168
1169 pr_debug("%s: <-\n", __func__);
1170 mutex_lock(&wl->assoc_stat_lock);
1171 spin_lock_irqsave(&wl->lock, irqflag);
1172 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1173 data->ap_addr.sa_family = ARPHRD_ETHER;
1174 memcpy(data->ap_addr.sa_data, wl->active_bssid,
1175 ETH_ALEN);
1176 } else
1177 eth_zero_addr(data->ap_addr.sa_data);
1178
1179 spin_unlock_irqrestore(&wl->lock, irqflag);
1180 mutex_unlock(&wl->assoc_stat_lock);
1181 pr_debug("%s: ->\n", __func__);
1182 return 0;
1183 }
1184
1185 /* SIOC{S,G}IWENCODEEXT */
gelic_wl_set_encodeext(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1186 static int gelic_wl_set_encodeext(struct net_device *netdev,
1187 struct iw_request_info *info,
1188 union iwreq_data *data, char *extra)
1189 {
1190 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1191 struct iw_point *enc = &data->encoding;
1192 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1193 __u16 alg;
1194 __u16 flags;
1195 unsigned long irqflag;
1196 int key_index;
1197 int ret = 0;
1198
1199 pr_debug("%s: <-\n", __func__);
1200 flags = enc->flags & IW_ENCODE_FLAGS;
1201 alg = ext->alg;
1202 key_index = enc->flags & IW_ENCODE_INDEX;
1203
1204 pr_debug("%s: key_index = %d\n", __func__, key_index);
1205 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1206 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1207 pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1208 pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1209
1210 if (GELIC_WEP_KEYS < key_index)
1211 return -EINVAL;
1212
1213 spin_lock_irqsave(&wl->lock, irqflag);
1214 if (key_index)
1215 key_index--;
1216 else
1217 key_index = wl->current_key;
1218
1219 if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1220 /* request to change default key index */
1221 pr_debug("%s: request to change default key to %d\n",
1222 __func__, key_index);
1223 wl->current_key = key_index;
1224 goto done;
1225 }
1226
1227 if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1228 pr_debug("%s: alg disabled\n", __func__);
1229 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1230 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1231 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1232 wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1233 } else if (alg == IW_ENCODE_ALG_WEP) {
1234 pr_debug("%s: WEP requested\n", __func__);
1235 if (flags & IW_ENCODE_OPEN) {
1236 pr_debug("%s: open key mode\n", __func__);
1237 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1238 }
1239 if (flags & IW_ENCODE_RESTRICTED) {
1240 pr_debug("%s: shared key mode\n", __func__);
1241 wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1242 }
1243 if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1244 pr_info("%s: key is too long %d\n", __func__,
1245 ext->key_len);
1246 ret = -EINVAL;
1247 goto done;
1248 }
1249 /* OK, update the key */
1250 wl->key_len[key_index] = ext->key_len;
1251 memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1252 memcpy(wl->key[key_index], ext->key, ext->key_len);
1253 set_bit(key_index, &wl->key_enabled);
1254 /* remember wep info changed */
1255 set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1256 } else if (alg == IW_ENCODE_ALG_PMK) {
1257 if (ext->key_len != WPA_PSK_LEN) {
1258 pr_err("%s: PSK length wrong %d\n", __func__,
1259 ext->key_len);
1260 ret = -EINVAL;
1261 goto done;
1262 }
1263 memset(wl->psk, 0, sizeof(wl->psk));
1264 memcpy(wl->psk, ext->key, ext->key_len);
1265 wl->psk_len = ext->key_len;
1266 wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1267 /* remember PSK configured */
1268 set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1269 }
1270 done:
1271 spin_unlock_irqrestore(&wl->lock, irqflag);
1272 pr_debug("%s: ->\n", __func__);
1273 return ret;
1274 }
1275
gelic_wl_get_encodeext(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1276 static int gelic_wl_get_encodeext(struct net_device *netdev,
1277 struct iw_request_info *info,
1278 union iwreq_data *data, char *extra)
1279 {
1280 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1281 struct iw_point *enc = &data->encoding;
1282 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1283 unsigned long irqflag;
1284 int key_index;
1285 int ret = 0;
1286 int max_key_len;
1287
1288 pr_debug("%s: <-\n", __func__);
1289
1290 max_key_len = enc->length - sizeof(struct iw_encode_ext);
1291 if (max_key_len < 0)
1292 return -EINVAL;
1293 key_index = enc->flags & IW_ENCODE_INDEX;
1294
1295 pr_debug("%s: key_index = %d\n", __func__, key_index);
1296 pr_debug("%s: key_len = %d\n", __func__, enc->length);
1297 pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1298
1299 if (GELIC_WEP_KEYS < key_index)
1300 return -EINVAL;
1301
1302 spin_lock_irqsave(&wl->lock, irqflag);
1303 if (key_index)
1304 key_index--;
1305 else
1306 key_index = wl->current_key;
1307
1308 memset(ext, 0, sizeof(struct iw_encode_ext));
1309 switch (wl->group_cipher_method) {
1310 case GELIC_WL_CIPHER_WEP:
1311 ext->alg = IW_ENCODE_ALG_WEP;
1312 enc->flags |= IW_ENCODE_ENABLED;
1313 break;
1314 case GELIC_WL_CIPHER_TKIP:
1315 ext->alg = IW_ENCODE_ALG_TKIP;
1316 enc->flags |= IW_ENCODE_ENABLED;
1317 break;
1318 case GELIC_WL_CIPHER_AES:
1319 ext->alg = IW_ENCODE_ALG_CCMP;
1320 enc->flags |= IW_ENCODE_ENABLED;
1321 break;
1322 case GELIC_WL_CIPHER_NONE:
1323 default:
1324 ext->alg = IW_ENCODE_ALG_NONE;
1325 enc->flags |= IW_ENCODE_NOKEY;
1326 break;
1327 }
1328
1329 if (!(enc->flags & IW_ENCODE_NOKEY)) {
1330 if (max_key_len < wl->key_len[key_index]) {
1331 ret = -E2BIG;
1332 goto out;
1333 }
1334 if (test_bit(key_index, &wl->key_enabled))
1335 memcpy(ext->key, wl->key[key_index],
1336 wl->key_len[key_index]);
1337 else
1338 pr_debug("%s: disabled key requested ix=%d\n",
1339 __func__, key_index);
1340 }
1341 out:
1342 spin_unlock_irqrestore(&wl->lock, irqflag);
1343 pr_debug("%s: ->\n", __func__);
1344 return ret;
1345 }
1346 /* SIOC{S,G}IWMODE */
gelic_wl_set_mode(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1347 static int gelic_wl_set_mode(struct net_device *netdev,
1348 struct iw_request_info *info,
1349 union iwreq_data *data, char *extra)
1350 {
1351 __u32 mode = data->mode;
1352 int ret;
1353
1354 pr_debug("%s: <-\n", __func__);
1355 if (mode == IW_MODE_INFRA)
1356 ret = 0;
1357 else
1358 ret = -EOPNOTSUPP;
1359 pr_debug("%s: -> %d\n", __func__, ret);
1360 return ret;
1361 }
1362
gelic_wl_get_mode(struct net_device * netdev,struct iw_request_info * info,union iwreq_data * data,char * extra)1363 static int gelic_wl_get_mode(struct net_device *netdev,
1364 struct iw_request_info *info,
1365 union iwreq_data *data, char *extra)
1366 {
1367 __u32 *mode = &data->mode;
1368 pr_debug("%s: <-\n", __func__);
1369 *mode = IW_MODE_INFRA;
1370 pr_debug("%s: ->\n", __func__);
1371 return 0;
1372 }
1373
1374 /* SIOCGIWNICKN */
gelic_wl_get_nick(struct net_device * net_dev,struct iw_request_info * info,union iwreq_data * data,char * extra)1375 static int gelic_wl_get_nick(struct net_device *net_dev,
1376 struct iw_request_info *info,
1377 union iwreq_data *data, char *extra)
1378 {
1379 strcpy(extra, "gelic_wl");
1380 data->data.length = strlen(extra);
1381 data->data.flags = 1;
1382 return 0;
1383 }
1384
1385
1386 /* --- */
1387
gelic_wl_get_wireless_stats(struct net_device * netdev)1388 static struct iw_statistics *gelic_wl_get_wireless_stats(
1389 struct net_device *netdev)
1390 {
1391
1392 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1393 struct gelic_eurus_cmd *cmd;
1394 struct iw_statistics *is;
1395 struct gelic_eurus_rssi_info *rssi;
1396 void *buf;
1397
1398 pr_debug("%s: <-\n", __func__);
1399
1400 buf = (void *)__get_free_page(GFP_KERNEL);
1401 if (!buf)
1402 return NULL;
1403
1404 is = &wl->iwstat;
1405 memset(is, 0, sizeof(*is));
1406 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1407 buf, sizeof(*rssi));
1408 if (cmd && !cmd->status && !cmd->cmd_status) {
1409 rssi = buf;
1410 is->qual.level = be16_to_cpu(rssi->rssi);
1411 is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1412 IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1413 } else
1414 /* not associated */
1415 is->qual.updated = IW_QUAL_ALL_INVALID;
1416
1417 kfree(cmd);
1418 free_page((unsigned long)buf);
1419 pr_debug("%s: ->\n", __func__);
1420 return is;
1421 }
1422
1423 /*
1424 * scanning helpers
1425 */
gelic_wl_start_scan(struct gelic_wl_info * wl,int always_scan,u8 * essid,size_t essid_len)1426 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1427 u8 *essid, size_t essid_len)
1428 {
1429 struct gelic_eurus_cmd *cmd;
1430 int ret = 0;
1431 void *buf = NULL;
1432 size_t len;
1433
1434 pr_debug("%s: <- always=%d\n", __func__, always_scan);
1435 if (mutex_lock_interruptible(&wl->scan_lock))
1436 return -ERESTARTSYS;
1437
1438 /*
1439 * If already a scan in progress, do not trigger more
1440 */
1441 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1442 pr_debug("%s: scanning now\n", __func__);
1443 goto out;
1444 }
1445
1446 init_completion(&wl->scan_done);
1447 /*
1448 * If we have already a bss list, don't try to get new
1449 * unless we are doing an ESSID scan
1450 */
1451 if ((!essid_len && !always_scan)
1452 && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1453 pr_debug("%s: already has the list\n", __func__);
1454 complete(&wl->scan_done);
1455 goto out;
1456 }
1457
1458 /* ESSID scan ? */
1459 if (essid_len && essid) {
1460 buf = (void *)__get_free_page(GFP_KERNEL);
1461 if (!buf) {
1462 ret = -ENOMEM;
1463 goto out;
1464 }
1465 len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1466 memset(buf, 0, len);
1467 memcpy(buf, essid, essid_len);
1468 pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1469 } else
1470 len = 0;
1471
1472 /*
1473 * issue start scan request
1474 */
1475 wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1476 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1477 buf, len);
1478 if (!cmd || cmd->status || cmd->cmd_status) {
1479 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1480 complete(&wl->scan_done);
1481 ret = -ENOMEM;
1482 goto out;
1483 }
1484 kfree(cmd);
1485 out:
1486 free_page((unsigned long)buf);
1487 mutex_unlock(&wl->scan_lock);
1488 pr_debug("%s: ->\n", __func__);
1489 return ret;
1490 }
1491
1492 /*
1493 * retrieve scan result from the chip (hypervisor)
1494 * this function is invoked by schedule work.
1495 */
gelic_wl_scan_complete_event(struct gelic_wl_info * wl)1496 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1497 {
1498 struct gelic_eurus_cmd *cmd = NULL;
1499 struct gelic_wl_scan_info *target, *tmp;
1500 struct gelic_wl_scan_info *oldest = NULL;
1501 struct gelic_eurus_scan_info *scan_info;
1502 unsigned int scan_info_size;
1503 union iwreq_data data;
1504 unsigned long this_time = jiffies;
1505 unsigned int data_len, i, found, r;
1506 void *buf;
1507
1508 pr_debug("%s:start\n", __func__);
1509 mutex_lock(&wl->scan_lock);
1510
1511 buf = (void *)__get_free_page(GFP_KERNEL);
1512 if (!buf) {
1513 pr_info("%s: scan buffer alloc failed\n", __func__);
1514 goto out;
1515 }
1516
1517 if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1518 /*
1519 * stop() may be called while scanning, ignore result
1520 */
1521 pr_debug("%s: scan complete when stat != scanning(%d)\n",
1522 __func__, wl->scan_stat);
1523 goto out;
1524 }
1525
1526 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1527 buf, PAGE_SIZE);
1528 if (!cmd || cmd->status || cmd->cmd_status) {
1529 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1530 pr_info("%s:cmd failed\n", __func__);
1531 kfree(cmd);
1532 goto out;
1533 }
1534 data_len = cmd->size;
1535 pr_debug("%s: data_len = %d\n", __func__, data_len);
1536 kfree(cmd);
1537
1538 /* OK, bss list retrieved */
1539 wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1540
1541 /* mark all entries are old */
1542 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1543 target->valid = 0;
1544 /* expire too old entries */
1545 if (time_before(target->last_scanned + wl->scan_age,
1546 this_time)) {
1547 kfree(target->hwinfo);
1548 target->hwinfo = NULL;
1549 list_move_tail(&target->list, &wl->network_free_list);
1550 }
1551 }
1552
1553 /* put them in the network_list */
1554 for (i = 0, scan_info_size = 0, scan_info = buf;
1555 scan_info_size < data_len;
1556 i++, scan_info_size += be16_to_cpu(scan_info->size),
1557 scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1558 pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1559 be16_to_cpu(scan_info->size),
1560 &scan_info->bssid[2], scan_info);
1561
1562 /*
1563 * The wireless firmware may return invalid channel 0 and/or
1564 * invalid rate if the AP emits zero length SSID ie. As this
1565 * scan information is useless, ignore it
1566 */
1567 if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1568 pr_debug("%s: invalid scan info\n", __func__);
1569 continue;
1570 }
1571
1572 found = 0;
1573 oldest = NULL;
1574 list_for_each_entry(target, &wl->network_list, list) {
1575 if (ether_addr_equal(&target->hwinfo->bssid[2],
1576 &scan_info->bssid[2])) {
1577 found = 1;
1578 pr_debug("%s: same BBS found scanned list\n",
1579 __func__);
1580 break;
1581 }
1582 if (!oldest ||
1583 (target->last_scanned < oldest->last_scanned))
1584 oldest = target;
1585 }
1586
1587 if (!found) {
1588 /* not found in the list */
1589 if (list_empty(&wl->network_free_list)) {
1590 /* expire oldest */
1591 target = oldest;
1592 } else {
1593 target = list_entry(wl->network_free_list.next,
1594 struct gelic_wl_scan_info,
1595 list);
1596 }
1597 }
1598
1599 /* update the item */
1600 target->last_scanned = this_time;
1601 target->valid = 1;
1602 target->eurus_index = i;
1603 kfree(target->hwinfo);
1604 target->hwinfo = kmemdup(scan_info,
1605 be16_to_cpu(scan_info->size),
1606 GFP_KERNEL);
1607 if (!target->hwinfo)
1608 continue;
1609
1610 /* copy hw scan info */
1611 target->essid_len = strnlen(scan_info->essid,
1612 sizeof(scan_info->essid));
1613 target->rate_len = 0;
1614 for (r = 0; r < 12; r++)
1615 if (scan_info->rate[r])
1616 target->rate_len++;
1617 if (8 < target->rate_len)
1618 pr_info("%s: AP returns %d rates\n", __func__,
1619 target->rate_len);
1620 target->rate_ext_len = 0;
1621 for (r = 0; r < 16; r++)
1622 if (scan_info->ext_rate[r])
1623 target->rate_ext_len++;
1624 list_move_tail(&target->list, &wl->network_list);
1625 }
1626 memset(&data, 0, sizeof(data));
1627 wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1628 NULL);
1629 out:
1630 free_page((unsigned long)buf);
1631 complete(&wl->scan_done);
1632 mutex_unlock(&wl->scan_lock);
1633 pr_debug("%s:end\n", __func__);
1634 }
1635
1636 /*
1637 * Select an appropriate bss from current scan list regarding
1638 * current settings from userspace.
1639 * The caller must hold wl->scan_lock,
1640 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1641 */
update_best(struct gelic_wl_scan_info ** best,struct gelic_wl_scan_info * candid,int * best_weight,int * weight)1642 static void update_best(struct gelic_wl_scan_info **best,
1643 struct gelic_wl_scan_info *candid,
1644 int *best_weight,
1645 int *weight)
1646 {
1647 if (*best_weight < ++(*weight)) {
1648 *best_weight = *weight;
1649 *best = candid;
1650 }
1651 }
1652
1653 static
gelic_wl_find_best_bss(struct gelic_wl_info * wl)1654 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1655 {
1656 struct gelic_wl_scan_info *scan_info;
1657 struct gelic_wl_scan_info *best_bss;
1658 int weight, best_weight;
1659 u16 security;
1660
1661 pr_debug("%s: <-\n", __func__);
1662
1663 best_bss = NULL;
1664 best_weight = 0;
1665
1666 list_for_each_entry(scan_info, &wl->network_list, list) {
1667 pr_debug("%s: station %p\n", __func__, scan_info);
1668
1669 if (!scan_info->valid) {
1670 pr_debug("%s: station invalid\n", __func__);
1671 continue;
1672 }
1673
1674 /* If bss specified, check it only */
1675 if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1676 if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1677 wl->bssid)) {
1678 best_bss = scan_info;
1679 pr_debug("%s: bssid matched\n", __func__);
1680 break;
1681 } else {
1682 pr_debug("%s: bssid unmatched\n", __func__);
1683 continue;
1684 }
1685 }
1686
1687 weight = 0;
1688
1689 /* security */
1690 security = be16_to_cpu(scan_info->hwinfo->security) &
1691 GELIC_EURUS_SCAN_SEC_MASK;
1692 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1693 if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1694 update_best(&best_bss, scan_info,
1695 &best_weight, &weight);
1696 else
1697 continue;
1698 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1699 if (security == GELIC_EURUS_SCAN_SEC_WPA)
1700 update_best(&best_bss, scan_info,
1701 &best_weight, &weight);
1702 else
1703 continue;
1704 } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1705 wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1706 if (security == GELIC_EURUS_SCAN_SEC_WEP)
1707 update_best(&best_bss, scan_info,
1708 &best_weight, &weight);
1709 else
1710 continue;
1711 }
1712
1713 /* If ESSID is set, check it */
1714 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1715 if ((scan_info->essid_len == wl->essid_len) &&
1716 !strncmp(wl->essid,
1717 scan_info->hwinfo->essid,
1718 scan_info->essid_len))
1719 update_best(&best_bss, scan_info,
1720 &best_weight, &weight);
1721 else
1722 continue;
1723 }
1724 }
1725
1726 #ifdef DEBUG
1727 pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1728 if (best_bss) {
1729 pr_debug("%s:addr=%pM\n", __func__,
1730 &best_bss->hwinfo->bssid[2]);
1731 }
1732 #endif
1733 return best_bss;
1734 }
1735
1736 /*
1737 * Setup WEP configuration to the chip
1738 * The caller must hold wl->scan_lock,
1739 * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1740 */
gelic_wl_do_wep_setup(struct gelic_wl_info * wl)1741 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1742 {
1743 unsigned int i;
1744 struct gelic_eurus_wep_cfg *wep;
1745 struct gelic_eurus_cmd *cmd;
1746 int wep104 = 0;
1747 int have_key = 0;
1748 int ret = 0;
1749
1750 pr_debug("%s: <-\n", __func__);
1751 /* we can assume no one should uses the buffer */
1752 wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1753 if (!wep)
1754 return -ENOMEM;
1755
1756 memset(wep, 0, sizeof(*wep));
1757
1758 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1759 pr_debug("%s: WEP mode\n", __func__);
1760 for (i = 0; i < GELIC_WEP_KEYS; i++) {
1761 if (!test_bit(i, &wl->key_enabled))
1762 continue;
1763
1764 pr_debug("%s: key#%d enabled\n", __func__, i);
1765 have_key = 1;
1766 if (wl->key_len[i] == 13)
1767 wep104 = 1;
1768 else if (wl->key_len[i] != 5) {
1769 pr_info("%s: wrong wep key[%d]=%d\n",
1770 __func__, i, wl->key_len[i]);
1771 ret = -EINVAL;
1772 goto out;
1773 }
1774 memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1775 }
1776
1777 if (!have_key) {
1778 pr_info("%s: all wep key disabled\n", __func__);
1779 ret = -EINVAL;
1780 goto out;
1781 }
1782
1783 if (wep104) {
1784 pr_debug("%s: 104bit key\n", __func__);
1785 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1786 } else {
1787 pr_debug("%s: 40bit key\n", __func__);
1788 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1789 }
1790 } else {
1791 pr_debug("%s: NO encryption\n", __func__);
1792 wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1793 }
1794
1795 /* issue wep setup */
1796 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1797 wep, sizeof(*wep));
1798 if (!cmd)
1799 ret = -ENOMEM;
1800 else if (cmd->status || cmd->cmd_status)
1801 ret = -ENXIO;
1802
1803 kfree(cmd);
1804 out:
1805 free_page((unsigned long)wep);
1806 pr_debug("%s: ->\n", __func__);
1807 return ret;
1808 }
1809
1810 #ifdef DEBUG
wpasecstr(enum gelic_eurus_wpa_security sec)1811 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1812 {
1813 switch (sec) {
1814 case GELIC_EURUS_WPA_SEC_NONE:
1815 return "NONE";
1816 case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1817 return "WPA_TKIP_TKIP";
1818 case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1819 return "WPA_TKIP_AES";
1820 case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1821 return "WPA_AES_AES";
1822 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1823 return "WPA2_TKIP_TKIP";
1824 case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1825 return "WPA2_TKIP_AES";
1826 case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1827 return "WPA2_AES_AES";
1828 }
1829 return "";
1830 };
1831 #endif
1832
gelic_wl_do_wpa_setup(struct gelic_wl_info * wl)1833 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1834 {
1835 struct gelic_eurus_wpa_cfg *wpa;
1836 struct gelic_eurus_cmd *cmd;
1837 u16 security;
1838 int ret = 0;
1839
1840 pr_debug("%s: <-\n", __func__);
1841 /* we can assume no one should uses the buffer */
1842 wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1843 if (!wpa)
1844 return -ENOMEM;
1845
1846 memset(wpa, 0, sizeof(*wpa));
1847
1848 if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1849 pr_info("%s: PSK not configured yet\n", __func__);
1850
1851 /* copy key */
1852 memcpy(wpa->psk, wl->psk, wl->psk_len);
1853
1854 /* set security level */
1855 if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1856 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1857 security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1858 } else {
1859 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1860 precise_ie())
1861 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1862 else
1863 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1864 }
1865 } else {
1866 if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1867 security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1868 } else {
1869 if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1870 precise_ie())
1871 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1872 else
1873 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1874 }
1875 }
1876 wpa->security = cpu_to_be16(security);
1877
1878 /* PSK type */
1879 wpa->psk_type = cpu_to_be16(wl->psk_type);
1880 #ifdef DEBUG
1881 pr_debug("%s: sec=%s psktype=%s\n", __func__,
1882 wpasecstr(wpa->security),
1883 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1884 "BIN" : "passphrase");
1885 #if 0
1886 /*
1887 * don't enable here if you plan to submit
1888 * the debug log because this dumps your precious
1889 * passphrase/key.
1890 */
1891 pr_debug("%s: psk=%s\n", __func__,
1892 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1893 "N/A" : wpa->psk);
1894 #endif
1895 #endif
1896 /* issue wpa setup */
1897 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1898 wpa, sizeof(*wpa));
1899 if (!cmd)
1900 ret = -ENOMEM;
1901 else if (cmd->status || cmd->cmd_status)
1902 ret = -ENXIO;
1903 kfree(cmd);
1904 free_page((unsigned long)wpa);
1905 pr_debug("%s: --> %d\n", __func__, ret);
1906 return ret;
1907 }
1908
1909 /*
1910 * Start association. caller must hold assoc_stat_lock
1911 */
gelic_wl_associate_bss(struct gelic_wl_info * wl,struct gelic_wl_scan_info * bss)1912 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1913 struct gelic_wl_scan_info *bss)
1914 {
1915 struct gelic_eurus_cmd *cmd;
1916 struct gelic_eurus_common_cfg *common;
1917 int ret = 0;
1918 unsigned long rc;
1919
1920 pr_debug("%s: <-\n", __func__);
1921
1922 /* do common config */
1923 common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1924 if (!common)
1925 return -ENOMEM;
1926
1927 memset(common, 0, sizeof(*common));
1928 common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1929 common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1930
1931 common->scan_index = cpu_to_be16(bss->eurus_index);
1932 switch (wl->auth_method) {
1933 case GELIC_EURUS_AUTH_OPEN:
1934 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1935 break;
1936 case GELIC_EURUS_AUTH_SHARED:
1937 common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1938 break;
1939 }
1940
1941 #ifdef DEBUG
1942 scan_list_dump(wl);
1943 #endif
1944 pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1945 be16_to_cpu(common->scan_index),
1946 be16_to_cpu(common->bss_type),
1947 be16_to_cpu(common->auth_method));
1948
1949 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1950 common, sizeof(*common));
1951 if (!cmd || cmd->status || cmd->cmd_status) {
1952 ret = -ENOMEM;
1953 kfree(cmd);
1954 goto out;
1955 }
1956 kfree(cmd);
1957
1958 /* WEP/WPA */
1959 switch (wl->wpa_level) {
1960 case GELIC_WL_WPA_LEVEL_NONE:
1961 /* If WEP or no security, setup WEP config */
1962 ret = gelic_wl_do_wep_setup(wl);
1963 break;
1964 case GELIC_WL_WPA_LEVEL_WPA:
1965 case GELIC_WL_WPA_LEVEL_WPA2:
1966 ret = gelic_wl_do_wpa_setup(wl);
1967 break;
1968 }
1969
1970 if (ret) {
1971 pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1972 ret);
1973 ret = -EPERM;
1974 gelic_wl_send_iwap_event(wl, NULL);
1975 goto out;
1976 }
1977
1978 /* start association */
1979 init_completion(&wl->assoc_done);
1980 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1981 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
1982 NULL, 0);
1983 if (!cmd || cmd->status || cmd->cmd_status) {
1984 pr_debug("%s: assoc request failed\n", __func__);
1985 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
1986 kfree(cmd);
1987 ret = -ENOMEM;
1988 gelic_wl_send_iwap_event(wl, NULL);
1989 goto out;
1990 }
1991 kfree(cmd);
1992
1993 /* wait for connected event */
1994 rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
1995
1996 if (!rc) {
1997 /* timeouted. Maybe key or cyrpt mode is wrong */
1998 pr_info("%s: connect timeout\n", __func__);
1999 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2000 NULL, 0);
2001 kfree(cmd);
2002 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2003 gelic_wl_send_iwap_event(wl, NULL);
2004 ret = -ENXIO;
2005 } else {
2006 wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2007 /* copy bssid */
2008 memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2009
2010 /* send connect event */
2011 gelic_wl_send_iwap_event(wl, wl->active_bssid);
2012 pr_info("%s: connected\n", __func__);
2013 }
2014 out:
2015 free_page((unsigned long)common);
2016 pr_debug("%s: ->\n", __func__);
2017 return ret;
2018 }
2019
2020 /*
2021 * connected event
2022 */
gelic_wl_connected_event(struct gelic_wl_info * wl,u64 event)2023 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2024 u64 event)
2025 {
2026 u64 desired_event = 0;
2027
2028 switch (wl->wpa_level) {
2029 case GELIC_WL_WPA_LEVEL_NONE:
2030 desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2031 break;
2032 case GELIC_WL_WPA_LEVEL_WPA:
2033 case GELIC_WL_WPA_LEVEL_WPA2:
2034 desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2035 break;
2036 }
2037
2038 if (desired_event == event) {
2039 pr_debug("%s: completed\n", __func__);
2040 complete(&wl->assoc_done);
2041 netif_carrier_on(port_to_netdev(wl_port(wl)));
2042 } else
2043 pr_debug("%s: event %#llx under wpa\n",
2044 __func__, event);
2045 }
2046
2047 /*
2048 * disconnect event
2049 */
gelic_wl_disconnect_event(struct gelic_wl_info * wl,u64 event)2050 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2051 u64 event)
2052 {
2053 struct gelic_eurus_cmd *cmd;
2054 int lock;
2055
2056 /*
2057 * If we fall here in the middle of association,
2058 * associate_bss() should be waiting for complation of
2059 * wl->assoc_done.
2060 * As it waits with timeout, just leave assoc_done
2061 * uncompleted, then it terminates with timeout
2062 */
2063 if (!mutex_trylock(&wl->assoc_stat_lock)) {
2064 pr_debug("%s: already locked\n", __func__);
2065 lock = 0;
2066 } else {
2067 pr_debug("%s: obtain lock\n", __func__);
2068 lock = 1;
2069 }
2070
2071 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2072 kfree(cmd);
2073
2074 /* send disconnected event to the supplicant */
2075 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2076 gelic_wl_send_iwap_event(wl, NULL);
2077
2078 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2079 netif_carrier_off(port_to_netdev(wl_port(wl)));
2080
2081 if (lock)
2082 mutex_unlock(&wl->assoc_stat_lock);
2083 }
2084 /*
2085 * event worker
2086 */
2087 #ifdef DEBUG
eventstr(enum gelic_lv1_wl_event event)2088 static const char *eventstr(enum gelic_lv1_wl_event event)
2089 {
2090 static char buf[32];
2091 char *ret;
2092 if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2093 ret = "EURUS_READY";
2094 else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2095 ret = "SCAN_COMPLETED";
2096 else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2097 ret = "DEAUTH";
2098 else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2099 ret = "BEACON_LOST";
2100 else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2101 ret = "CONNECTED";
2102 else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2103 ret = "WPA_CONNECTED";
2104 else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2105 ret = "WPA_ERROR";
2106 else {
2107 sprintf(buf, "Unknown(%#x)", event);
2108 ret = buf;
2109 }
2110 return ret;
2111 }
2112 #else
eventstr(enum gelic_lv1_wl_event event)2113 static const char *eventstr(enum gelic_lv1_wl_event event)
2114 {
2115 return NULL;
2116 }
2117 #endif
gelic_wl_event_worker(struct work_struct * work)2118 static void gelic_wl_event_worker(struct work_struct *work)
2119 {
2120 struct gelic_wl_info *wl;
2121 struct gelic_port *port;
2122 u64 event, tmp;
2123 int status;
2124
2125 pr_debug("%s:start\n", __func__);
2126 wl = container_of(work, struct gelic_wl_info, event_work.work);
2127 port = wl_port(wl);
2128 while (1) {
2129 status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2130 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2131 &event, &tmp);
2132 if (status) {
2133 if (status != LV1_NO_ENTRY)
2134 pr_debug("%s:wlan event failed %d\n",
2135 __func__, status);
2136 /* got all events */
2137 pr_debug("%s:end\n", __func__);
2138 return;
2139 }
2140 pr_debug("%s: event=%s\n", __func__, eventstr(event));
2141 switch (event) {
2142 case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2143 gelic_wl_scan_complete_event(wl);
2144 break;
2145 case GELIC_LV1_WL_EVENT_BEACON_LOST:
2146 case GELIC_LV1_WL_EVENT_DEAUTH:
2147 gelic_wl_disconnect_event(wl, event);
2148 break;
2149 case GELIC_LV1_WL_EVENT_CONNECTED:
2150 case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2151 gelic_wl_connected_event(wl, event);
2152 break;
2153 default:
2154 break;
2155 }
2156 } /* while */
2157 }
2158 /*
2159 * association worker
2160 */
gelic_wl_assoc_worker(struct work_struct * work)2161 static void gelic_wl_assoc_worker(struct work_struct *work)
2162 {
2163 struct gelic_wl_info *wl;
2164
2165 struct gelic_wl_scan_info *best_bss;
2166 int ret;
2167 unsigned long irqflag;
2168 u8 *essid;
2169 size_t essid_len;
2170
2171 wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2172
2173 mutex_lock(&wl->assoc_stat_lock);
2174
2175 if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2176 goto out;
2177
2178 spin_lock_irqsave(&wl->lock, irqflag);
2179 if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2180 pr_debug("%s: assoc ESSID configured %s\n", __func__,
2181 wl->essid);
2182 essid = wl->essid;
2183 essid_len = wl->essid_len;
2184 } else {
2185 essid = NULL;
2186 essid_len = 0;
2187 }
2188 spin_unlock_irqrestore(&wl->lock, irqflag);
2189
2190 ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2191 if (ret == -ERESTARTSYS) {
2192 pr_debug("%s: scan start failed association\n", __func__);
2193 schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2194 goto out;
2195 } else if (ret) {
2196 pr_info("%s: scan prerequisite failed\n", __func__);
2197 goto out;
2198 }
2199
2200 /*
2201 * Wait for bss scan completion
2202 * If we have scan list already, gelic_wl_start_scan()
2203 * returns OK and raises the complete. Thus,
2204 * it's ok to wait unconditionally here
2205 */
2206 wait_for_completion(&wl->scan_done);
2207
2208 pr_debug("%s: scan done\n", __func__);
2209 mutex_lock(&wl->scan_lock);
2210 if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2211 gelic_wl_send_iwap_event(wl, NULL);
2212 pr_info("%s: no scan list. association failed\n", __func__);
2213 goto scan_lock_out;
2214 }
2215
2216 /* find best matching bss */
2217 best_bss = gelic_wl_find_best_bss(wl);
2218 if (!best_bss) {
2219 gelic_wl_send_iwap_event(wl, NULL);
2220 pr_info("%s: no bss matched. association failed\n", __func__);
2221 goto scan_lock_out;
2222 }
2223
2224 /* ok, do association */
2225 ret = gelic_wl_associate_bss(wl, best_bss);
2226 if (ret)
2227 pr_info("%s: association failed %d\n", __func__, ret);
2228 scan_lock_out:
2229 mutex_unlock(&wl->scan_lock);
2230 out:
2231 mutex_unlock(&wl->assoc_stat_lock);
2232 }
2233 /*
2234 * Interrupt handler
2235 * Called from the ethernet interrupt handler
2236 * Processes wireless specific virtual interrupts only
2237 */
gelic_wl_interrupt(struct net_device * netdev,u64 status)2238 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2239 {
2240 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2241
2242 if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2243 pr_debug("%s:cmd complete\n", __func__);
2244 complete(&wl->cmd_done_intr);
2245 }
2246
2247 if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2248 pr_debug("%s:event received\n", __func__);
2249 queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2250 }
2251 }
2252
2253 /*
2254 * driver helpers
2255 */
2256 static const iw_handler gelic_wl_wext_handler[] =
2257 {
2258 IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2259 IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2260 IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2261 IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2262 IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2263 IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2264 IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2265 IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2266 IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2267 IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2268 IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2269 IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2270 IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2271 IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2272 IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2273 IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2274 IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2275 };
2276
2277 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2278 .num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
2279 .standard = gelic_wl_wext_handler,
2280 .get_wireless_stats = gelic_wl_get_wireless_stats,
2281 };
2282
gelic_wl_alloc(struct gelic_card * card)2283 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2284 {
2285 struct net_device *netdev;
2286 struct gelic_port *port;
2287 struct gelic_wl_info *wl;
2288 unsigned int i;
2289
2290 pr_debug("%s:start\n", __func__);
2291 netdev = alloc_etherdev(sizeof(struct gelic_port) +
2292 sizeof(struct gelic_wl_info));
2293 pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2294 if (!netdev)
2295 return NULL;
2296
2297 strcpy(netdev->name, "wlan%d");
2298
2299 port = netdev_priv(netdev);
2300 port->netdev = netdev;
2301 port->card = card;
2302 port->type = GELIC_PORT_WIRELESS;
2303
2304 wl = port_wl(port);
2305 pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2306
2307 /* allocate scan list */
2308 wl->networks = kcalloc(GELIC_WL_BSS_MAX_ENT,
2309 sizeof(struct gelic_wl_scan_info),
2310 GFP_KERNEL);
2311
2312 if (!wl->networks)
2313 goto fail_bss;
2314
2315 wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2316 if (!wl->eurus_cmd_queue)
2317 goto fail_cmd_workqueue;
2318
2319 wl->event_queue = create_singlethread_workqueue("gelic_event");
2320 if (!wl->event_queue)
2321 goto fail_event_workqueue;
2322
2323 INIT_LIST_HEAD(&wl->network_free_list);
2324 INIT_LIST_HEAD(&wl->network_list);
2325 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2326 list_add_tail(&wl->networks[i].list,
2327 &wl->network_free_list);
2328 init_completion(&wl->cmd_done_intr);
2329
2330 INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2331 INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2332 mutex_init(&wl->scan_lock);
2333 mutex_init(&wl->assoc_stat_lock);
2334
2335 init_completion(&wl->scan_done);
2336 /* for the case that no scan request is issued and stop() is called */
2337 complete(&wl->scan_done);
2338
2339 spin_lock_init(&wl->lock);
2340
2341 wl->scan_age = 5*HZ; /* FIXME */
2342
2343 /* buffer for receiving scanned list etc */
2344 BUILD_BUG_ON(PAGE_SIZE <
2345 sizeof(struct gelic_eurus_scan_info) *
2346 GELIC_EURUS_MAX_SCAN);
2347 pr_debug("%s:end\n", __func__);
2348 return netdev;
2349
2350 fail_event_workqueue:
2351 destroy_workqueue(wl->eurus_cmd_queue);
2352 fail_cmd_workqueue:
2353 kfree(wl->networks);
2354 fail_bss:
2355 free_netdev(netdev);
2356 pr_debug("%s:end error\n", __func__);
2357 return NULL;
2358
2359 }
2360
gelic_wl_free(struct gelic_wl_info * wl)2361 static void gelic_wl_free(struct gelic_wl_info *wl)
2362 {
2363 struct gelic_wl_scan_info *scan_info;
2364 unsigned int i;
2365
2366 pr_debug("%s: <-\n", __func__);
2367
2368 pr_debug("%s: destroy queues\n", __func__);
2369 destroy_workqueue(wl->eurus_cmd_queue);
2370 destroy_workqueue(wl->event_queue);
2371
2372 scan_info = wl->networks;
2373 for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2374 kfree(scan_info->hwinfo);
2375 kfree(wl->networks);
2376
2377 free_netdev(port_to_netdev(wl_port(wl)));
2378
2379 pr_debug("%s: ->\n", __func__);
2380 }
2381
gelic_wl_try_associate(struct net_device * netdev)2382 static int gelic_wl_try_associate(struct net_device *netdev)
2383 {
2384 struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2385 int ret = -1;
2386 unsigned int i;
2387
2388 pr_debug("%s: <-\n", __func__);
2389
2390 /* check constraits for start association */
2391 /* for no access restriction AP */
2392 if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2393 if (test_bit(GELIC_WL_STAT_CONFIGURED,
2394 &wl->stat))
2395 goto do_associate;
2396 else {
2397 pr_debug("%s: no wep, not configured\n", __func__);
2398 return ret;
2399 }
2400 }
2401
2402 /* for WEP, one of four keys should be set */
2403 if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2404 /* one of keys set */
2405 for (i = 0; i < GELIC_WEP_KEYS; i++) {
2406 if (test_bit(i, &wl->key_enabled))
2407 goto do_associate;
2408 }
2409 pr_debug("%s: WEP, but no key specified\n", __func__);
2410 return ret;
2411 }
2412
2413 /* for WPA[2], psk should be set */
2414 if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2415 (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2416 if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2417 &wl->stat))
2418 goto do_associate;
2419 else {
2420 pr_debug("%s: AES/TKIP, but PSK not configured\n",
2421 __func__);
2422 return ret;
2423 }
2424 }
2425
2426 do_associate:
2427 ret = schedule_delayed_work(&wl->assoc_work, 0);
2428 pr_debug("%s: start association work %d\n", __func__, ret);
2429 return ret;
2430 }
2431
2432 /*
2433 * netdev handlers
2434 */
gelic_wl_open(struct net_device * netdev)2435 static int gelic_wl_open(struct net_device *netdev)
2436 {
2437 struct gelic_card *card = netdev_card(netdev);
2438
2439 pr_debug("%s:->%p\n", __func__, netdev);
2440
2441 gelic_card_up(card);
2442
2443 /* try to associate */
2444 gelic_wl_try_associate(netdev);
2445
2446 netif_start_queue(netdev);
2447
2448 pr_debug("%s:<-\n", __func__);
2449 return 0;
2450 }
2451
2452 /*
2453 * reset state machine
2454 */
gelic_wl_reset_state(struct gelic_wl_info * wl)2455 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2456 {
2457 struct gelic_wl_scan_info *target;
2458 struct gelic_wl_scan_info *tmp;
2459
2460 /* empty scan list */
2461 list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2462 list_move_tail(&target->list, &wl->network_free_list);
2463 }
2464 wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2465
2466 /* clear configuration */
2467 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2468 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2469 wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2470 wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2471
2472 wl->key_enabled = 0;
2473 wl->current_key = 0;
2474
2475 wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2476 wl->psk_len = 0;
2477
2478 wl->essid_len = 0;
2479 memset(wl->essid, 0, sizeof(wl->essid));
2480 memset(wl->bssid, 0, sizeof(wl->bssid));
2481 memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2482
2483 wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2484
2485 memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2486 /* all status bit clear */
2487 wl->stat = 0;
2488 return 0;
2489 }
2490
2491 /*
2492 * Tell eurus to terminate association
2493 */
gelic_wl_disconnect(struct net_device * netdev)2494 static void gelic_wl_disconnect(struct net_device *netdev)
2495 {
2496 struct gelic_port *port = netdev_priv(netdev);
2497 struct gelic_wl_info *wl = port_wl(port);
2498 struct gelic_eurus_cmd *cmd;
2499
2500 /*
2501 * If scann process is running on chip,
2502 * further requests will be rejected
2503 */
2504 if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2505 wait_for_completion_timeout(&wl->scan_done, HZ);
2506
2507 cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2508 kfree(cmd);
2509 gelic_wl_send_iwap_event(wl, NULL);
2510 };
2511
gelic_wl_stop(struct net_device * netdev)2512 static int gelic_wl_stop(struct net_device *netdev)
2513 {
2514 struct gelic_port *port = netdev_priv(netdev);
2515 struct gelic_wl_info *wl = port_wl(port);
2516 struct gelic_card *card = netdev_card(netdev);
2517
2518 pr_debug("%s:<-\n", __func__);
2519
2520 /*
2521 * Cancel pending association work.
2522 * event work can run after netdev down
2523 */
2524 cancel_delayed_work(&wl->assoc_work);
2525
2526 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2527 gelic_wl_disconnect(netdev);
2528
2529 /* reset our state machine */
2530 gelic_wl_reset_state(wl);
2531
2532 netif_stop_queue(netdev);
2533
2534 gelic_card_down(card);
2535
2536 pr_debug("%s:->\n", __func__);
2537 return 0;
2538 }
2539
2540 /* -- */
2541
2542 static const struct net_device_ops gelic_wl_netdevice_ops = {
2543 .ndo_open = gelic_wl_open,
2544 .ndo_stop = gelic_wl_stop,
2545 .ndo_start_xmit = gelic_net_xmit,
2546 .ndo_set_rx_mode = gelic_net_set_multi,
2547 .ndo_tx_timeout = gelic_net_tx_timeout,
2548 .ndo_set_mac_address = eth_mac_addr,
2549 .ndo_validate_addr = eth_validate_addr,
2550 #ifdef CONFIG_NET_POLL_CONTROLLER
2551 .ndo_poll_controller = gelic_net_poll_controller,
2552 #endif
2553 };
2554
2555 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2556 .get_drvinfo = gelic_net_get_drvinfo,
2557 .get_link = gelic_wl_get_link,
2558 };
2559
gelic_wl_setup_netdev_ops(struct net_device * netdev)2560 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2561 {
2562 struct gelic_wl_info *wl;
2563 wl = port_wl(netdev_priv(netdev));
2564 BUG_ON(!wl);
2565 netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2566
2567 netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2568 netdev->netdev_ops = &gelic_wl_netdevice_ops;
2569 netdev->wireless_data = &wl->wireless_data;
2570 netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2571 }
2572
2573 /*
2574 * driver probe/remove
2575 */
gelic_wl_driver_probe(struct gelic_card * card)2576 int gelic_wl_driver_probe(struct gelic_card *card)
2577 {
2578 int ret;
2579 struct net_device *netdev;
2580
2581 pr_debug("%s:start\n", __func__);
2582
2583 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2584 return 0;
2585 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2586 return 0;
2587
2588 /* alloc netdevice for wireless */
2589 netdev = gelic_wl_alloc(card);
2590 if (!netdev)
2591 return -ENOMEM;
2592
2593 /* setup net_device structure */
2594 SET_NETDEV_DEV(netdev, &card->dev->core);
2595 gelic_wl_setup_netdev_ops(netdev);
2596
2597 /* setup some of net_device and register it */
2598 ret = gelic_net_setup_netdev(netdev, card);
2599 if (ret)
2600 goto fail_setup;
2601 card->netdev[GELIC_PORT_WIRELESS] = netdev;
2602
2603 /* add enable wireless interrupt */
2604 card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2605 GELIC_CARD_WLAN_COMMAND_COMPLETED;
2606 /* to allow wireless commands while both interfaces are down */
2607 gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2608 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2609 pr_debug("%s:end\n", __func__);
2610 return 0;
2611
2612 fail_setup:
2613 gelic_wl_free(port_wl(netdev_port(netdev)));
2614
2615 return ret;
2616 }
2617
gelic_wl_driver_remove(struct gelic_card * card)2618 int gelic_wl_driver_remove(struct gelic_card *card)
2619 {
2620 struct gelic_wl_info *wl;
2621 struct net_device *netdev;
2622
2623 pr_debug("%s:start\n", __func__);
2624
2625 if (ps3_compare_firmware_version(1, 6, 0) < 0)
2626 return 0;
2627 if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2628 return 0;
2629
2630 netdev = card->netdev[GELIC_PORT_WIRELESS];
2631 wl = port_wl(netdev_priv(netdev));
2632
2633 /* if the interface was not up, but associated */
2634 if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2635 gelic_wl_disconnect(netdev);
2636
2637 complete(&wl->cmd_done_intr);
2638
2639 /* cancel all work queue */
2640 cancel_delayed_work(&wl->assoc_work);
2641 cancel_delayed_work(&wl->event_work);
2642 flush_workqueue(wl->eurus_cmd_queue);
2643 flush_workqueue(wl->event_queue);
2644
2645 unregister_netdev(netdev);
2646
2647 /* disable wireless interrupt */
2648 pr_debug("%s: disable intr\n", __func__);
2649 card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2650 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2651 /* free bss list, netdev*/
2652 gelic_wl_free(wl);
2653 pr_debug("%s:end\n", __func__);
2654 return 0;
2655 }
2656