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);