drivers/net/wireless/hostap/hostap_proc.c

   1 /* /proc routines for Host AP driver */
   2
   3 #define PROC_LIMIT (PAGE_SIZE - 80)
   4
   5
   6 #ifndef PRISM2_NO_PROCFS_DEBUG
   7 static int prism2_debug_proc_read(char *page, char **start, off_t off,
   8                                   int count, int *eof, void *data)
   9 {
  10         char *p = page;
  11         local_info_t *local = (local_info_t *) data;
  12         int i;
  13
  14         if (off != 0) {
  15                 *eof = 1;
  16                 return 0;
  17         }
  18
  19         p += sprintf(p, "next_txfid=%d next_alloc=%d\n",
  20                      local->next_txfid, local->next_alloc);
  21         for (i = 0; i < PRISM2_TXFID_COUNT; i++)
  22                 p += sprintf(p, "FID: tx=%04X intransmit=%04X\n",
  23                              local->txfid[i], local->intransmitfid[i]);
  24         p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control);
  25         p += sprintf(p, "beacon_int=%d\n", local->beacon_int);
  26         p += sprintf(p, "dtim_period=%d\n", local->dtim_period);
  27         p += sprintf(p, "wds_max_connections=%d\n",
  28                      local->wds_max_connections);
  29         p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled);
  30         p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
  31         for (i = 0; i < WEP_KEYS; i++) {
  32                 if (local->crypt[i] && local->crypt[i]->ops) {
  33                         p += sprintf(p, "crypt[%d]=%s\n",
  34                                      i, local->crypt[i]->ops->name);
  35                 }
  36         }
  37         p += sprintf(p, "pri_only=%d\n", local->pri_only);
  38         p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
  39         p += sprintf(p, "sram_type=%d\n", local->sram_type);
  40         p += sprintf(p, "no_pri=%d\n", local->no_pri);
  41
  42         return (p - page);
  43 }
  44 #endif /* PRISM2_NO_PROCFS_DEBUG */
  45
  46
  47 static int prism2_stats_proc_read(char *page, char **start, off_t off,
  48                                   int count, int *eof, void *data)
  49 {
  50         char *p = page;
  51         local_info_t *local = (local_info_t *) data;
  52         struct comm_tallies_sums *sums = (struct comm_tallies_sums *)
  53                 &local->comm_tallies;
  54
  55         if (off != 0) {
  56                 *eof = 1;
  57                 return 0;
  58         }
  59
  60         p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
  61         p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
  62         p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments);
  63         p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
  64         p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
  65         p += sprintf(p, "TxDeferredTransmissions=%u\n",
  66                      sums->tx_deferred_transmissions);
  67         p += sprintf(p, "TxSingleRetryFrames=%u\n",
  68                      sums->tx_single_retry_frames);
  69         p += sprintf(p, "TxMultipleRetryFrames=%u\n",
  70                      sums->tx_multiple_retry_frames);
  71         p += sprintf(p, "TxRetryLimitExceeded=%u\n",
  72                      sums->tx_retry_limit_exceeded);
  73         p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards);
  74         p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
  75         p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
  76         p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments);
  77         p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
  78         p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
  79         p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
  80         p += sprintf(p, "RxDiscardsNoBuffer=%u\n",
  81                      sums->rx_discards_no_buffer);
  82         p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
  83         p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n",
  84                      sums->rx_discards_wep_undecryptable);
  85         p += sprintf(p, "RxMessageInMsgFragments=%u\n",
  86                      sums->rx_message_in_msg_fragments);
  87         p += sprintf(p, "RxMessageInBadMsgFragments=%u\n",
  88                      sums->rx_message_in_bad_msg_fragments);
  89         /* FIX: this may grow too long for one page(?) */
  90
  91         return (p - page);
  92 }
  93
  94
  95 static int prism2_wds_proc_read(char *page, char **start, off_t off,
  96                                 int count, int *eof, void *data)
  97 {
  98         char *p = page;
  99         local_info_t *local = (local_info_t *) data;
 100         struct list_head *ptr;
 101         struct hostap_interface *iface;
 102
 103         if (off > PROC_LIMIT) {
 104                 *eof = 1;
 105                 return 0;
 106         }
 107
 108         read_lock_bh(&local->iface_lock);
 109         list_for_each(ptr, &local->hostap_interfaces) {
 110                 iface = list_entry(ptr, struct hostap_interface, list);
 111                 if (iface->type != HOSTAP_INTERFACE_WDS)
 112                         continue;
 113                 p += sprintf(p, "%s\t" MACSTR "\n",
 114                              iface->dev->name,
 115                              MAC2STR(iface->u.wds.remote_addr));
 116                 if ((p - page) > PROC_LIMIT) {
 117                         printk(KERN_DEBUG "%s: wds proc did not fit\n",
 118                                local->dev->name);
 119                         break;
 120                 }
 121         }
 122         read_unlock_bh(&local->iface_lock);
 123
 124         if ((p - page) <= off) {
 125                 *eof = 1;
 126                 return 0;
 127         }
 128
 129         *start = page + off;
 130
 131         return (p - page - off);
 132 }
 133
 134
 135 static int prism2_bss_list_proc_read(char *page, char **start, off_t off,
 136                                      int count, int *eof, void *data)
 137 {
 138         char *p = page;
 139         local_info_t *local = (local_info_t *) data;
 140         struct list_head *ptr;
 141         struct hostap_bss_info *bss;
 142         int i;
 143
 144         if (off > PROC_LIMIT) {
 145                 *eof = 1;
 146                 return 0;
 147         }
 148
 149         p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
 150                      "SSID(hex)\tWPA IE\n");
 151         spin_lock_bh(&local->lock);
 152         list_for_each(ptr, &local->bss_list) {
 153                 bss = list_entry(ptr, struct hostap_bss_info, list);
 154                 p += sprintf(p, MACSTR "\t%lu\t%u\t0x%x\t",
 155                              MAC2STR(bss->bssid), bss->last_update,
 156                              bss->count, bss->capab_info);
 157                 for (i = 0; i < bss->ssid_len; i++) {
 158                         p += sprintf(p, "%c",
 159                                      bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
 160                                      bss->ssid[i] : '_');
 161                 }
 162                 p += sprintf(p, "\t");
 163                 for (i = 0; i < bss->ssid_len; i++) {
 164                         p += sprintf(p, "%02x", bss->ssid[i]);
 165                 }
 166                 p += sprintf(p, "\t");
 167                 for (i = 0; i < bss->wpa_ie_len; i++) {
 168                         p += sprintf(p, "%02x", bss->wpa_ie[i]);
 169                 }
 170                 p += sprintf(p, "\n");
 171                 if ((p - page) > PROC_LIMIT) {
 172                         printk(KERN_DEBUG "%s: BSS proc did not fit\n",
 173                                local->dev->name);
 174                         break;
 175                 }
 176         }
 177         spin_unlock_bh(&local->lock);
 178
 179         if ((p - page) <= off) {
 180                 *eof = 1;
 181                 return 0;
 182         }
 183
 184         *start = page + off;
 185
 186         return (p - page - off);
 187 }
 188
 189
 190 static int prism2_crypt_proc_read(char *page, char **start, off_t off,
 191                                   int count, int *eof, void *data)
 192 {
 193         char *p = page;
 194         local_info_t *local = (local_info_t *) data;
 195         int i;
 196
 197         if (off > PROC_LIMIT) {
 198                 *eof = 1;
 199                 return 0;
 200         }
 201
 202         p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx);
 203         for (i = 0; i < WEP_KEYS; i++) {
 204                 if (local->crypt[i] && local->crypt[i]->ops &&
 205                     local->crypt[i]->ops->print_stats) {
 206                         p = local->crypt[i]->ops->print_stats(
 207                                 p, local->crypt[i]->priv);
 208                 }
 209         }
 210
 211         if ((p - page) <= off) {
 212                 *eof = 1;
 213                 return 0;
 214         }
 215
 216         *start = page + off;
 217
 218         return (p - page - off);
 219 }
 220
 221
 222 static int prism2_pda_proc_read(char *page, char **start, off_t off,
 223                                 int count, int *eof, void *data)
 224 {
 225         local_info_t *local = (local_info_t *) data;
 226
 227         if (local->pda == NULL || off >= PRISM2_PDA_SIZE) {
 228                 *eof = 1;
 229                 return 0;
 230         }
 231
 232         if (off + count > PRISM2_PDA_SIZE)
 233                 count = PRISM2_PDA_SIZE - off;
 234
 235         memcpy(page, local->pda + off, count);
 236         return count;
 237 }
 238
 239
 240 static int prism2_aux_dump_proc_read(char *page, char **start, off_t off,
 241                                      int count, int *eof, void *data)
 242 {
 243         local_info_t *local = (local_info_t *) data;
 244
 245         if (local->func->read_aux == NULL) {
 246                 *eof = 1;
 247                 return 0;
 248         }
 249
 250         if (local->func->read_aux(local->dev, off, count, page)) {
 251                 *eof = 1;
 252                 return 0;
 253         }
 254         *start = page;
 255
 256         return count;
 257 }
 258
 259
 260 #ifdef PRISM2_IO_DEBUG
 261 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
 262                                      int count, int *eof, void *data)
 263 {
 264         local_info_t *local = (local_info_t *) data;
 265         int head = local->io_debug_head;
 266         int start_bytes, left, copy, copied;
 267
 268         if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
 269                 *eof = 1;
 270                 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
 271                         return 0;
 272                 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
 273         }
 274
 275         copied = 0;
 276         start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
 277         left = count;
 278
 279         if (off < start_bytes) {
 280                 copy = start_bytes - off;
 281                 if (copy > count)
 282                         copy = count;
 283                 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
 284                 left -= copy;
 285                 if (left > 0)
 286                         memcpy(&page[copy], local->io_debug, left);
 287         } else {
 288                 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
 289                        left);
 290         }
 291
 292         *start = page;
 293
 294         return count;
 295 }
 296 #endif /* PRISM2_IO_DEBUG */
 297
 298
 299 #ifndef PRISM2_NO_STATION_MODES
 300 static int prism2_scan_results_proc_read(char *page, char **start, off_t off,
 301                                          int count, int *eof, void *data)
 302 {
 303         char *p = page;
 304         local_info_t *local = (local_info_t *) data;
 305         int entries, entry, i, len, total = 0, hostscan;
 306         struct hfa384x_scan_result *scanres;
 307         struct hfa384x_hostscan_result *hscanres;
 308         u8 *pos;
 309
 310         p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates "
 311                      "SSID\n");
 312
 313         spin_lock_bh(&local->lock);
 314         hostscan = local->last_scan_type == PRISM2_HOSTSCAN;
 315         entries = hostscan ? local->last_hostscan_results_count :
 316                 local->last_scan_results_count;
 317         for (entry = 0; entry < entries; entry++) {
 318                 hscanres = &local->last_hostscan_results[entry];
 319                 scanres = &local->last_scan_results[entry];
 320
 321                 if (total + (p - page) <= off) {
 322                         total += p - page;
 323                         p = page;
 324                 }
 325                 if (total + (p - page) > off + count)
 326                         break;
 327                 if ((p - page) > (PAGE_SIZE - 200))
 328                         break;
 329
 330                 if (hostscan) {
 331                         p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR " %d ",
 332                                      le16_to_cpu(hscanres->chid),
 333                                      (s16) le16_to_cpu(hscanres->anl),
 334                                      (s16) le16_to_cpu(hscanres->sl),
 335                                      le16_to_cpu(hscanres->beacon_interval),
 336                                      le16_to_cpu(hscanres->capability),
 337                                      le16_to_cpu(hscanres->rate),
 338                                      MAC2STR(hscanres->bssid),
 339                                      le16_to_cpu(hscanres->atim));
 340                 } else {
 341                         p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR
 342                                      " N/A ",
 343                                      le16_to_cpu(scanres->chid),
 344                                      (s16) le16_to_cpu(scanres->anl),
 345                                      (s16) le16_to_cpu(scanres->sl),
 346                                      le16_to_cpu(scanres->beacon_interval),
 347                                      le16_to_cpu(scanres->capability),
 348                                      le16_to_cpu(scanres->rate),
 349                                      MAC2STR(scanres->bssid));
 350                 }
 351
 352                 pos = hostscan ? hscanres->sup_rates : scanres->sup_rates;
 353                 for (i = 0; i < sizeof(hscanres->sup_rates); i++) {
 354                         if (pos[i] == 0)
 355                                 break;
 356                         p += sprintf(p, "<%02x>", pos[i]);
 357                 }
 358                 p += sprintf(p, " ");
 359
 360                 pos = hostscan ? hscanres->ssid : scanres->ssid;
 361                 len = le16_to_cpu(hostscan ? hscanres->ssid_len :
 362                                   scanres->ssid_len);
 363                 if (len > 32)
 364                         len = 32;
 365                 for (i = 0; i < len; i++) {
 366                         unsigned char c = pos[i];
 367                         if (c >= 32 && c < 127)
 368                                 p += sprintf(p, "%c", c);
 369                         else
 370                                 p += sprintf(p, "<%02x>", c);
 371                 }
 372                 p += sprintf(p, "\n");
 373         }
 374         spin_unlock_bh(&local->lock);
 375
 376         total += (p - page);
 377         if (total >= off + count)
 378                 *eof = 1;
 379
 380         if (total < off) {
 381                 *eof = 1;
 382                 return 0;
 383         }
 384
 385         len = total - off;
 386         if (len > (p - page))
 387                 len = p - page;
 388         *start = p - len;
 389         if (len > count)
 390                 len = count;
 391
 392         return len;
 393 }
 394 #endif /* PRISM2_NO_STATION_MODES */
 395
 396
 397 void hostap_init_proc(local_info_t *local)
 398 {
 399         local->proc = NULL;
 400
 401         if (hostap_proc == NULL) {
 402                 printk(KERN_WARNING "%s: hostap proc directory not created\n",
 403                        local->dev->name);
 404                 return;
 405         }
 406
 407         local->proc = proc_mkdir(local->ddev->name, hostap_proc);
 408         if (local->proc == NULL) {
 409                 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
 410                        local->ddev->name);
 411                 return;
 412         }
 413
 414 #ifndef PRISM2_NO_PROCFS_DEBUG
 415         create_proc_read_entry("debug", 0, local->proc,
 416                                prism2_debug_proc_read, local);
 417 #endif /* PRISM2_NO_PROCFS_DEBUG */
 418         create_proc_read_entry("stats", 0, local->proc,
 419                                prism2_stats_proc_read, local);
 420         create_proc_read_entry("wds", 0, local->proc,
 421                                prism2_wds_proc_read, local);
 422         create_proc_read_entry("pda", 0, local->proc,
 423                                prism2_pda_proc_read, local);
 424         create_proc_read_entry("aux_dump", 0, local->proc,
 425                                prism2_aux_dump_proc_read, local);
 426         create_proc_read_entry("bss_list", 0, local->proc,
 427                                prism2_bss_list_proc_read, local);
 428         create_proc_read_entry("crypt", 0, local->proc,
 429                                prism2_crypt_proc_read, local);
 430 #ifdef PRISM2_IO_DEBUG
 431         create_proc_read_entry("io_debug", 0, local->proc,
 432                                prism2_io_debug_proc_read, local);
 433 #endif /* PRISM2_IO_DEBUG */
 434 #ifndef PRISM2_NO_STATION_MODES
 435         create_proc_read_entry("scan_results", 0, local->proc,
 436                                prism2_scan_results_proc_read, local);
 437 #endif /* PRISM2_NO_STATION_MODES */
 438 }
 439
 440
 441 void hostap_remove_proc(local_info_t *local)
 442 {
 443         if (local->proc != NULL) {
 444 #ifndef PRISM2_NO_STATION_MODES
 445                 remove_proc_entry("scan_results", local->proc);
 446 #endif /* PRISM2_NO_STATION_MODES */
 447 #ifdef PRISM2_IO_DEBUG
 448                 remove_proc_entry("io_debug", local->proc);
 449 #endif /* PRISM2_IO_DEBUG */
 450                 remove_proc_entry("pda", local->proc);
 451                 remove_proc_entry("aux_dump", local->proc);
 452                 remove_proc_entry("wds", local->proc);
 453                 remove_proc_entry("stats", local->proc);
 454                 remove_proc_entry("bss_list", local->proc);
 455                 remove_proc_entry("crypt", local->proc);
 456 #ifndef PRISM2_NO_PROCFS_DEBUG
 457                 remove_proc_entry("debug", local->proc);
 458 #endif /* PRISM2_NO_PROCFS_DEBUG */
 459                 if (hostap_proc != NULL)
 460                         remove_proc_entry(local->proc->name, hostap_proc);
 461         }
 462 }
 463
 464
 465 EXPORT_SYMBOL(hostap_init_proc);
 466 EXPORT_SYMBOL(hostap_remove_proc);