Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / drivers / net / wireless / hostap / hostap_proc.c
1 /* /proc routines for Host AP driver */
2
3 #include <linux/types.h>
4 #include <linux/proc_fs.h>
5 #include <net/ieee80211_crypt.h>
6
7 #include "hostap_wlan.h"
8 #include "hostap.h"
9
10 #define PROC_LIMIT (PAGE_SIZE - 80)
11
12
13 #ifndef PRISM2_NO_PROCFS_DEBUG
14 static int prism2_debug_proc_read(char *page, char **start, off_t off,
15                                   int count, int *eof, void *data)
16 {
17         char *p = page;
18         local_info_t *local = (local_info_t *) data;
19         int i;
20
21         if (off != 0) {
22                 *eof = 1;
23                 return 0;
24         }
25
26         p += sprintf(p, "next_txfid=%d next_alloc=%d\n",
27                      local->next_txfid, local->next_alloc);
28         for (i = 0; i < PRISM2_TXFID_COUNT; i++)
29                 p += sprintf(p, "FID: tx=%04X intransmit=%04X\n",
30                              local->txfid[i], local->intransmitfid[i]);
31         p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control);
32         p += sprintf(p, "beacon_int=%d\n", local->beacon_int);
33         p += sprintf(p, "dtim_period=%d\n", local->dtim_period);
34         p += sprintf(p, "wds_max_connections=%d\n",
35                      local->wds_max_connections);
36         p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled);
37         p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
38         for (i = 0; i < WEP_KEYS; i++) {
39                 if (local->crypt[i] && local->crypt[i]->ops) {
40                         p += sprintf(p, "crypt[%d]=%s\n",
41                                      i, local->crypt[i]->ops->name);
42                 }
43         }
44         p += sprintf(p, "pri_only=%d\n", local->pri_only);
45         p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
46         p += sprintf(p, "sram_type=%d\n", local->sram_type);
47         p += sprintf(p, "no_pri=%d\n", local->no_pri);
48
49         return (p - page);
50 }
51 #endif /* PRISM2_NO_PROCFS_DEBUG */
52
53
54 static int prism2_stats_proc_read(char *page, char **start, off_t off,
55                                   int count, int *eof, void *data)
56 {
57         char *p = page;
58         local_info_t *local = (local_info_t *) data;
59         struct comm_tallies_sums *sums = (struct comm_tallies_sums *)
60                 &local->comm_tallies;
61
62         if (off != 0) {
63                 *eof = 1;
64                 return 0;
65         }
66
67         p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
68         p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
69         p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments);
70         p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
71         p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
72         p += sprintf(p, "TxDeferredTransmissions=%u\n",
73                      sums->tx_deferred_transmissions);
74         p += sprintf(p, "TxSingleRetryFrames=%u\n",
75                      sums->tx_single_retry_frames);
76         p += sprintf(p, "TxMultipleRetryFrames=%u\n",
77                      sums->tx_multiple_retry_frames);
78         p += sprintf(p, "TxRetryLimitExceeded=%u\n",
79                      sums->tx_retry_limit_exceeded);
80         p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards);
81         p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
82         p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
83         p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments);
84         p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
85         p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
86         p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
87         p += sprintf(p, "RxDiscardsNoBuffer=%u\n",
88                      sums->rx_discards_no_buffer);
89         p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
90         p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n",
91                      sums->rx_discards_wep_undecryptable);
92         p += sprintf(p, "RxMessageInMsgFragments=%u\n",
93                      sums->rx_message_in_msg_fragments);
94         p += sprintf(p, "RxMessageInBadMsgFragments=%u\n",
95                      sums->rx_message_in_bad_msg_fragments);
96         /* FIX: this may grow too long for one page(?) */
97
98         return (p - page);
99 }
100
101
102 static int prism2_wds_proc_read(char *page, char **start, off_t off,
103                                 int count, int *eof, void *data)
104 {
105         char *p = page;
106         local_info_t *local = (local_info_t *) data;
107         struct list_head *ptr;
108         struct hostap_interface *iface;
109         DECLARE_MAC_BUF(mac);
110
111         if (off > PROC_LIMIT) {
112                 *eof = 1;
113                 return 0;
114         }
115
116         read_lock_bh(&local->iface_lock);
117         list_for_each(ptr, &local->hostap_interfaces) {
118                 iface = list_entry(ptr, struct hostap_interface, list);
119                 if (iface->type != HOSTAP_INTERFACE_WDS)
120                         continue;
121                 p += sprintf(p, "%s\t%s\n",
122                              iface->dev->name,
123                              print_mac(mac, iface->u.wds.remote_addr));
124                 if ((p - page) > PROC_LIMIT) {
125                         printk(KERN_DEBUG "%s: wds proc did not fit\n",
126                                local->dev->name);
127                         break;
128                 }
129         }
130         read_unlock_bh(&local->iface_lock);
131
132         if ((p - page) <= off) {
133                 *eof = 1;
134                 return 0;
135         }
136
137         *start = page + off;
138
139         return (p - page - off);
140 }
141
142
143 static int prism2_bss_list_proc_read(char *page, char **start, off_t off,
144                                      int count, int *eof, void *data)
145 {
146         char *p = page;
147         local_info_t *local = (local_info_t *) data;
148         struct list_head *ptr;
149         struct hostap_bss_info *bss;
150         int i;
151         DECLARE_MAC_BUF(mac);
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, "%s\t%lu\t%u\t0x%x\t",
164                              print_mac(mac, 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
199 static 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->tx_keyidx);
212         for (i = 0; i < WEP_KEYS; i++) {
213                 if (local->crypt[i] && local->crypt[i]->ops &&
214                     local->crypt[i]->ops->print_stats) {
215                         p = local->crypt[i]->ops->print_stats(
216                                 p, local->crypt[i]->priv);
217                 }
218         }
219
220         if ((p - page) <= off) {
221                 *eof = 1;
222                 return 0;
223         }
224
225         *start = page + off;
226
227         return (p - page - off);
228 }
229
230
231 static int prism2_pda_proc_read(char *page, char **start, off_t off,
232                                 int count, int *eof, void *data)
233 {
234         local_info_t *local = (local_info_t *) data;
235
236         if (local->pda == NULL || off >= PRISM2_PDA_SIZE) {
237                 *eof = 1;
238                 return 0;
239         }
240
241         if (off + count > PRISM2_PDA_SIZE)
242                 count = PRISM2_PDA_SIZE - off;
243
244         memcpy(page, local->pda + off, count);
245         return count;
246 }
247
248
249 static int prism2_aux_dump_proc_read(char *page, char **start, off_t off,
250                                      int count, int *eof, void *data)
251 {
252         local_info_t *local = (local_info_t *) data;
253
254         if (local->func->read_aux == NULL) {
255                 *eof = 1;
256                 return 0;
257         }
258
259         if (local->func->read_aux(local->dev, off, count, page)) {
260                 *eof = 1;
261                 return 0;
262         }
263         *start = page;
264
265         return count;
266 }
267
268
269 #ifdef PRISM2_IO_DEBUG
270 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
271                                      int count, int *eof, void *data)
272 {
273         local_info_t *local = (local_info_t *) data;
274         int head = local->io_debug_head;
275         int start_bytes, left, copy, copied;
276
277         if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
278                 *eof = 1;
279                 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
280                         return 0;
281                 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
282         }
283
284         copied = 0;
285         start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
286         left = count;
287
288         if (off < start_bytes) {
289                 copy = start_bytes - off;
290                 if (copy > count)
291                         copy = count;
292                 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
293                 left -= copy;
294                 if (left > 0)
295                         memcpy(&page[copy], local->io_debug, left);
296         } else {
297                 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
298                        left);
299         }
300
301         *start = page;
302
303         return count;
304 }
305 #endif /* PRISM2_IO_DEBUG */
306
307
308 #ifndef PRISM2_NO_STATION_MODES
309 static int prism2_scan_results_proc_read(char *page, char **start, off_t off,
310                                          int count, int *eof, void *data)
311 {
312         char *p = page;
313         local_info_t *local = (local_info_t *) data;
314         int entry, i, len, total = 0;
315         struct hfa384x_hostscan_result *scanres;
316         u8 *pos;
317         DECLARE_MAC_BUF(mac);
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 %s %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                              print_mac(mac, 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
389 void 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
433 void 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
457 EXPORT_SYMBOL(hostap_init_proc);
458 EXPORT_SYMBOL(hostap_remove_proc);