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1/* /proc routines for Host AP driver */
2
3#include <linux/types.h>
4#include <linux/proc_fs.h>
5#include <linux/export.h>
6#include <net/lib80211.h>
7
8#include "hostap_wlan.h"
9#include "hostap.h"
10
11#define PROC_LIMIT (PAGE_SIZE - 80)
12
13
14#ifndef PRISM2_NO_PROCFS_DEBUG
15static int prism2_debug_proc_read(char *page, char **start, off_t off,
16 int count, int *eof, void *data)
17{
18 char *p = page;
19 local_info_t *local = (local_info_t *) data;
20 int i;
21
22 if (off != 0) {
23 *eof = 1;
24 return 0;
25 }
26
27 p += sprintf(p, "next_txfid=%d next_alloc=%d\n",
28 local->next_txfid, local->next_alloc);
29 for (i = 0; i < PRISM2_TXFID_COUNT; i++)
30 p += sprintf(p, "FID: tx=%04X intransmit=%04X\n",
31 local->txfid[i], local->intransmitfid[i]);
32 p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control);
33 p += sprintf(p, "beacon_int=%d\n", local->beacon_int);
34 p += sprintf(p, "dtim_period=%d\n", local->dtim_period);
35 p += sprintf(p, "wds_max_connections=%d\n",
36 local->wds_max_connections);
37 p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled);
38 p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
39 for (i = 0; i < WEP_KEYS; i++) {
40 if (local->crypt_info.crypt[i] &&
41 local->crypt_info.crypt[i]->ops) {
42 p += sprintf(p, "crypt[%d]=%s\n", i,
43 local->crypt_info.crypt[i]->ops->name);
44 }
45 }
46 p += sprintf(p, "pri_only=%d\n", local->pri_only);
47 p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
48 p += sprintf(p, "sram_type=%d\n", local->sram_type);
49 p += sprintf(p, "no_pri=%d\n", local->no_pri);
50
51 return (p - page);
52}
53#endif /* PRISM2_NO_PROCFS_DEBUG */
54
55
56static int prism2_stats_proc_read(char *page, char **start, off_t off,
57 int count, int *eof, void *data)
58{
59 char *p = page;
60 local_info_t *local = (local_info_t *) data;
61 struct comm_tallies_sums *sums = (struct comm_tallies_sums *)
62 &local->comm_tallies;
63
64 if (off != 0) {
65 *eof = 1;
66 return 0;
67 }
68
69 p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
70 p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
71 p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments);
72 p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
73 p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
74 p += sprintf(p, "TxDeferredTransmissions=%u\n",
75 sums->tx_deferred_transmissions);
76 p += sprintf(p, "TxSingleRetryFrames=%u\n",
77 sums->tx_single_retry_frames);
78 p += sprintf(p, "TxMultipleRetryFrames=%u\n",
79 sums->tx_multiple_retry_frames);
80 p += sprintf(p, "TxRetryLimitExceeded=%u\n",
81 sums->tx_retry_limit_exceeded);
82 p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards);
83 p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
84 p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
85 p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments);
86 p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
87 p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
88 p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
89 p += sprintf(p, "RxDiscardsNoBuffer=%u\n",
90 sums->rx_discards_no_buffer);
91 p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
92 p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n",
93 sums->rx_discards_wep_undecryptable);
94 p += sprintf(p, "RxMessageInMsgFragments=%u\n",
95 sums->rx_message_in_msg_fragments);
96 p += sprintf(p, "RxMessageInBadMsgFragments=%u\n",
97 sums->rx_message_in_bad_msg_fragments);
98 /* FIX: this may grow too long for one page(?) */
99
100 return (p - page);
101}
102
103
104static int prism2_wds_proc_read(char *page, char **start, off_t off,
105 int count, int *eof, void *data)
106{
107 char *p = page;
108 local_info_t *local = (local_info_t *) data;
109 struct list_head *ptr;
110 struct hostap_interface *iface;
111
112 if (off > PROC_LIMIT) {
113 *eof = 1;
114 return 0;
115 }
116
117 read_lock_bh(&local->iface_lock);
118 list_for_each(ptr, &local->hostap_interfaces) {
119 iface = list_entry(ptr, struct hostap_interface, list);
120 if (iface->type != HOSTAP_INTERFACE_WDS)
121 continue;
122 p += sprintf(p, "%s\t%pM\n",
123 iface->dev->name,
124 iface->u.wds.remote_addr);
125 if ((p - page) > PROC_LIMIT) {
126 printk(KERN_DEBUG "%s: wds proc did not fit\n",
127 local->dev->name);
128 break;
129 }
130 }
131 read_unlock_bh(&local->iface_lock);
132
133 if ((p - page) <= off) {
134 *eof = 1;
135 return 0;
136 }
137
138 *start = page + off;
139
140 return (p - page - off);
141}
142
143
144static int prism2_bss_list_proc_read(char *page, char **start, off_t off,
145 int count, int *eof, void *data)
146{
147 char *p = page;
148 local_info_t *local = (local_info_t *) data;
149 struct list_head *ptr;
150 struct hostap_bss_info *bss;
151 int i;
152
153 if (off > PROC_LIMIT) {
154 *eof = 1;
155 return 0;
156 }
157
158 p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
159 "SSID(hex)\tWPA IE\n");
160 spin_lock_bh(&local->lock);
161 list_for_each(ptr, &local->bss_list) {
162 bss = list_entry(ptr, struct hostap_bss_info, list);
163 p += sprintf(p, "%pM\t%lu\t%u\t0x%x\t",
164 bss->bssid, bss->last_update,
165 bss->count, bss->capab_info);
166 for (i = 0; i < bss->ssid_len; i++) {
167 p += sprintf(p, "%c",
168 bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
169 bss->ssid[i] : '_');
170 }
171 p += sprintf(p, "\t");
172 for (i = 0; i < bss->ssid_len; i++) {
173 p += sprintf(p, "%02x", bss->ssid[i]);
174 }
175 p += sprintf(p, "\t");
176 for (i = 0; i < bss->wpa_ie_len; i++) {
177 p += sprintf(p, "%02x", bss->wpa_ie[i]);
178 }
179 p += sprintf(p, "\n");
180 if ((p - page) > PROC_LIMIT) {
181 printk(KERN_DEBUG "%s: BSS proc did not fit\n",
182 local->dev->name);
183 break;
184 }
185 }
186 spin_unlock_bh(&local->lock);
187
188 if ((p - page) <= off) {
189 *eof = 1;
190 return 0;
191 }
192
193 *start = page + off;
194
195 return (p - page - off);
196}
197
198
199static int prism2_crypt_proc_read(char *page, char **start, off_t off,
200 int count, int *eof, void *data)
201{
202 char *p = page;
203 local_info_t *local = (local_info_t *) data;
204 int i;
205
206 if (off > PROC_LIMIT) {
207 *eof = 1;
208 return 0;
209 }
210
211 p += sprintf(p, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
212 for (i = 0; i < WEP_KEYS; i++) {
213 if (local->crypt_info.crypt[i] &&
214 local->crypt_info.crypt[i]->ops &&
215 local->crypt_info.crypt[i]->ops->print_stats) {
216 p = local->crypt_info.crypt[i]->ops->print_stats(
217 p, local->crypt_info.crypt[i]->priv);
218 }
219 }
220
221 if ((p - page) <= off) {
222 *eof = 1;
223 return 0;
224 }
225
226 *start = page + off;
227
228 return (p - page - off);
229}
230
231
232static int prism2_pda_proc_read(char *page, char **start, off_t off,
233 int count, int *eof, void *data)
234{
235 local_info_t *local = (local_info_t *) data;
236
237 if (local->pda == NULL || off >= PRISM2_PDA_SIZE) {
238 *eof = 1;
239 return 0;
240 }
241
242 if (off + count > PRISM2_PDA_SIZE)
243 count = PRISM2_PDA_SIZE - off;
244
245 memcpy(page, local->pda + off, count);
246 return count;
247}
248
249
250static int prism2_aux_dump_proc_read(char *page, char **start, off_t off,
251 int count, int *eof, void *data)
252{
253 local_info_t *local = (local_info_t *) data;
254
255 if (local->func->read_aux == NULL) {
256 *eof = 1;
257 return 0;
258 }
259
260 if (local->func->read_aux(local->dev, off, count, page)) {
261 *eof = 1;
262 return 0;
263 }
264 *start = page;
265
266 return count;
267}
268
269
270#ifdef PRISM2_IO_DEBUG
271static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
272 int count, int *eof, void *data)
273{
274 local_info_t *local = (local_info_t *) data;
275 int head = local->io_debug_head;
276 int start_bytes, left, copy, copied;
277
278 if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
279 *eof = 1;
280 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
281 return 0;
282 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
283 }
284
285 copied = 0;
286 start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
287 left = count;
288
289 if (off < start_bytes) {
290 copy = start_bytes - off;
291 if (copy > count)
292 copy = count;
293 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
294 left -= copy;
295 if (left > 0)
296 memcpy(&page[copy], local->io_debug, left);
297 } else {
298 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
299 left);
300 }
301
302 *start = page;
303
304 return count;
305}
306#endif /* PRISM2_IO_DEBUG */
307
308
309#ifndef PRISM2_NO_STATION_MODES
310static int prism2_scan_results_proc_read(char *page, char **start, off_t off,
311 int count, int *eof, void *data)
312{
313 char *p = page;
314 local_info_t *local = (local_info_t *) data;
315 int entry, i, len, total = 0;
316 struct hfa384x_hostscan_result *scanres;
317 u8 *pos;
318
319 p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates "
320 "SSID\n");
321
322 spin_lock_bh(&local->lock);
323 for (entry = 0; entry < local->last_scan_results_count; entry++) {
324 scanres = &local->last_scan_results[entry];
325
326 if (total + (p - page) <= off) {
327 total += p - page;
328 p = page;
329 }
330 if (total + (p - page) > off + count)
331 break;
332 if ((p - page) > (PAGE_SIZE - 200))
333 break;
334
335 p += sprintf(p, "%d %d %d %d 0x%02x %d %pM %d ",
336 le16_to_cpu(scanres->chid),
337 (s16) le16_to_cpu(scanres->anl),
338 (s16) le16_to_cpu(scanres->sl),
339 le16_to_cpu(scanres->beacon_interval),
340 le16_to_cpu(scanres->capability),
341 le16_to_cpu(scanres->rate),
342 scanres->bssid,
343 le16_to_cpu(scanres->atim));
344
345 pos = scanres->sup_rates;
346 for (i = 0; i < sizeof(scanres->sup_rates); i++) {
347 if (pos[i] == 0)
348 break;
349 p += sprintf(p, "<%02x>", pos[i]);
350 }
351 p += sprintf(p, " ");
352
353 pos = scanres->ssid;
354 len = le16_to_cpu(scanres->ssid_len);
355 if (len > 32)
356 len = 32;
357 for (i = 0; i < len; i++) {
358 unsigned char c = pos[i];
359 if (c >= 32 && c < 127)
360 p += sprintf(p, "%c", c);
361 else
362 p += sprintf(p, "<%02x>", c);
363 }
364 p += sprintf(p, "\n");
365 }
366 spin_unlock_bh(&local->lock);
367
368 total += (p - page);
369 if (total >= off + count)
370 *eof = 1;
371
372 if (total < off) {
373 *eof = 1;
374 return 0;
375 }
376
377 len = total - off;
378 if (len > (p - page))
379 len = p - page;
380 *start = p - len;
381 if (len > count)
382 len = count;
383
384 return len;
385}
386#endif /* PRISM2_NO_STATION_MODES */
387
388
389void hostap_init_proc(local_info_t *local)
390{
391 local->proc = NULL;
392
393 if (hostap_proc == NULL) {
394 printk(KERN_WARNING "%s: hostap proc directory not created\n",
395 local->dev->name);
396 return;
397 }
398
399 local->proc = proc_mkdir(local->ddev->name, hostap_proc);
400 if (local->proc == NULL) {
401 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
402 local->ddev->name);
403 return;
404 }
405
406#ifndef PRISM2_NO_PROCFS_DEBUG
407 create_proc_read_entry("debug", 0, local->proc,
408 prism2_debug_proc_read, local);
409#endif /* PRISM2_NO_PROCFS_DEBUG */
410 create_proc_read_entry("stats", 0, local->proc,
411 prism2_stats_proc_read, local);
412 create_proc_read_entry("wds", 0, local->proc,
413 prism2_wds_proc_read, local);
414 create_proc_read_entry("pda", 0, local->proc,
415 prism2_pda_proc_read, local);
416 create_proc_read_entry("aux_dump", 0, local->proc,
417 prism2_aux_dump_proc_read, local);
418 create_proc_read_entry("bss_list", 0, local->proc,
419 prism2_bss_list_proc_read, local);
420 create_proc_read_entry("crypt", 0, local->proc,
421 prism2_crypt_proc_read, local);
422#ifdef PRISM2_IO_DEBUG
423 create_proc_read_entry("io_debug", 0, local->proc,
424 prism2_io_debug_proc_read, local);
425#endif /* PRISM2_IO_DEBUG */
426#ifndef PRISM2_NO_STATION_MODES
427 create_proc_read_entry("scan_results", 0, local->proc,
428 prism2_scan_results_proc_read, local);
429#endif /* PRISM2_NO_STATION_MODES */
430}
431
432
433void hostap_remove_proc(local_info_t *local)
434{
435 if (local->proc != NULL) {
436#ifndef PRISM2_NO_STATION_MODES
437 remove_proc_entry("scan_results", local->proc);
438#endif /* PRISM2_NO_STATION_MODES */
439#ifdef PRISM2_IO_DEBUG
440 remove_proc_entry("io_debug", local->proc);
441#endif /* PRISM2_IO_DEBUG */
442 remove_proc_entry("pda", local->proc);
443 remove_proc_entry("aux_dump", local->proc);
444 remove_proc_entry("wds", local->proc);
445 remove_proc_entry("stats", local->proc);
446 remove_proc_entry("bss_list", local->proc);
447 remove_proc_entry("crypt", local->proc);
448#ifndef PRISM2_NO_PROCFS_DEBUG
449 remove_proc_entry("debug", local->proc);
450#endif /* PRISM2_NO_PROCFS_DEBUG */
451 if (hostap_proc != NULL)
452 remove_proc_entry(local->proc->name, hostap_proc);
453 }
454}
455
456
457EXPORT_SYMBOL(hostap_init_proc);
458EXPORT_SYMBOL(hostap_remove_proc);