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
 110         if (off > PROC_LIMIT) {
 111                 *eof = 1;
 112                 return 0;
 113         }
 114
 115         read_lock_bh(&local->iface_lock);
 116         list_for_each(ptr, &local->hostap_interfaces) {
 117                 iface = list_entry(ptr, struct hostap_interface, list);
 118                 if (iface->type != HOSTAP_INTERFACE_WDS)
 119                         continue;
 120                 p += sprintf(p, "%s\t" MACSTR "\n",
 121                              iface->dev->name,
 122                              MAC2STR(iface->u.wds.remote_addr));
 123                 if ((p - page) > PROC_LIMIT) {
 124                         printk(KERN_DEBUG "%s: wds proc did not fit\n",
 125                                local->dev->name);
 126                         break;
 127                 }
 128         }
 129         read_unlock_bh(&local->iface_lock);
 130
 131         if ((p - page) <= off) {
 132                 *eof = 1;
 133                 return 0;
 134         }
 135
 136         *start = page + off;
 137
 138         return (p - page - off);
 139 }
 140
 141
 142 static int prism2_bss_list_proc_read(char *page, char **start, off_t off,
 143                                      int count, int *eof, void *data)
 144 {
 145         char *p = page;
 146         local_info_t *local = (local_info_t *) data;
 147         struct list_head *ptr;
 148         struct hostap_bss_info *bss;
 149         int i;
 150
 151         if (off > PROC_LIMIT) {
 152                 *eof = 1;
 153                 return 0;
 154         }
 155
 156         p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
 157                      "SSID(hex)\tWPA IE\n");
 158         spin_lock_bh(&local->lock);
 159         list_for_each(ptr, &local->bss_list) {
 160                 bss = list_entry(ptr, struct hostap_bss_info, list);
 161                 p += sprintf(p, MACSTR "\t%lu\t%u\t0x%x\t",
 162                              MAC2STR(bss->bssid), bss->last_update,
 163                              bss->count, bss->capab_info);
 164                 for (i = 0; i < bss->ssid_len; i++) {
 165                         p += sprintf(p, "%c",
 166                                      bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
 167                                      bss->ssid[i] : '_');
 168                 }
 169                 p += sprintf(p, "\t");
 170                 for (i = 0; i < bss->ssid_len; i++) {
 171                         p += sprintf(p, "%02x", bss->ssid[i]);
 172                 }
 173                 p += sprintf(p, "\t");
 174                 for (i = 0; i < bss->wpa_ie_len; i++) {
 175                         p += sprintf(p, "%02x", bss->wpa_ie[i]);
 176                 }
 177                 p += sprintf(p, "\n");
 178                 if ((p - page) > PROC_LIMIT) {
 179                         printk(KERN_DEBUG "%s: BSS proc did not fit\n",
 180                                local->dev->name);
 181                         break;
 182                 }
 183         }
 184         spin_unlock_bh(&local->lock);
 185
 186         if ((p - page) <= off) {
 187                 *eof = 1;
 188                 return 0;
 189         }
 190
 191         *start = page + off;
 192
 193         return (p - page - off);
 194 }
 195
 196
 197 static int prism2_crypt_proc_read(char *page, char **start, off_t off,
 198                                   int count, int *eof, void *data)
 199 {
 200         char *p = page;
 201         local_info_t *local = (local_info_t *) data;
 202         int i;
 203
 204         if (off > PROC_LIMIT) {
 205                 *eof = 1;
 206                 return 0;
 207         }
 208
 209         p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx);
 210         for (i = 0; i < WEP_KEYS; i++) {
 211                 if (local->crypt[i] && local->crypt[i]->ops &&
 212                     local->crypt[i]->ops->print_stats) {
 213                         p = local->crypt[i]->ops->print_stats(
 214                                 p, local->crypt[i]->priv);
 215                 }
 216         }
 217
 218         if ((p - page) <= off) {
 219                 *eof = 1;
 220                 return 0;
 221         }
 222
 223         *start = page + off;
 224
 225         return (p - page - off);
 226 }
 227
 228
 229 static int prism2_pda_proc_read(char *page, char **start, off_t off,
 230                                 int count, int *eof, void *data)
 231 {
 232         local_info_t *local = (local_info_t *) data;
 233
 234         if (local->pda == NULL || off >= PRISM2_PDA_SIZE) {
 235                 *eof = 1;
 236                 return 0;
 237         }
 238
 239         if (off + count > PRISM2_PDA_SIZE)
 240                 count = PRISM2_PDA_SIZE - off;
 241
 242         memcpy(page, local->pda + off, count);
 243         return count;
 244 }
 245
 246
 247 static int prism2_aux_dump_proc_read(char *page, char **start, off_t off,
 248                                      int count, int *eof, void *data)
 249 {
 250         local_info_t *local = (local_info_t *) data;
 251
 252         if (local->func->read_aux == NULL) {
 253                 *eof = 1;
 254                 return 0;
 255         }
 256
 257         if (local->func->read_aux(local->dev, off, count, page)) {
 258                 *eof = 1;
 259                 return 0;
 260         }
 261         *start = page;
 262
 263         return count;
 264 }
 265
 266
 267 #ifdef PRISM2_IO_DEBUG
 268 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
 269                                      int count, int *eof, void *data)
 270 {
 271         local_info_t *local = (local_info_t *) data;
 272         int head = local->io_debug_head;
 273         int start_bytes, left, copy, copied;
 274
 275         if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
 276                 *eof = 1;
 277                 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
 278                         return 0;
 279                 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
 280         }
 281
 282         copied = 0;
 283         start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
 284         left = count;
 285
 286         if (off < start_bytes) {
 287                 copy = start_bytes - off;
 288                 if (copy > count)
 289                         copy = count;
 290                 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
 291                 left -= copy;
 292                 if (left > 0)
 293                         memcpy(&page[copy], local->io_debug, left);
 294         } else {
 295                 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
 296                        left);
 297         }
 298
 299         *start = page;
 300
 301         return count;
 302 }
 303 #endif /* PRISM2_IO_DEBUG */
 304
 305
 306 #ifndef PRISM2_NO_STATION_MODES
 307 static int prism2_scan_results_proc_read(char *page, char **start, off_t off,
 308                                          int count, int *eof, void *data)
 309 {
 310         char *p = page;
 311         local_info_t *local = (local_info_t *) data;
 312         int entry, i, len, total = 0;
 313         struct hfa384x_hostscan_result *scanres;
 314         u8 *pos;
 315
 316         p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates "
 317                      "SSID\n");
 318
 319         spin_lock_bh(&local->lock);
 320         for (entry = 0; entry < local->last_scan_results_count; entry++) {
 321                 scanres = &local->last_scan_results[entry];
 322
 323                 if (total + (p - page) <= off) {
 324                         total += p - page;
 325                         p = page;
 326                 }
 327                 if (total + (p - page) > off + count)
 328                         break;
 329                 if ((p - page) > (PAGE_SIZE - 200))
 330                         break;
 331
 332                 p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR " %d ",
 333                              le16_to_cpu(scanres->chid),
 334                              (s16) le16_to_cpu(scanres->anl),
 335                              (s16) le16_to_cpu(scanres->sl),
 336                              le16_to_cpu(scanres->beacon_interval),
 337                              le16_to_cpu(scanres->capability),
 338                              le16_to_cpu(scanres->rate),
 339                              MAC2STR(scanres->bssid),
 340                              le16_to_cpu(scanres->atim));
 341
 342                 pos = scanres->sup_rates;
 343                 for (i = 0; i < sizeof(scanres->sup_rates); i++) {
 344                         if (pos[i] == 0)
 345                                 break;
 346                         p += sprintf(p, "<%02x>", pos[i]);
 347                 }
 348                 p += sprintf(p, " ");
 349
 350                 pos = scanres->ssid;
 351                 len = le16_to_cpu(scanres->ssid_len);
 352                 if (len > 32)
 353                         len = 32;
 354                 for (i = 0; i < len; i++) {
 355                         unsigned char c = pos[i];
 356                         if (c >= 32 && c < 127)
 357                                 p += sprintf(p, "%c", c);
 358                         else
 359                                 p += sprintf(p, "<%02x>", c);
 360                 }
 361                 p += sprintf(p, "\n");
 362         }
 363         spin_unlock_bh(&local->lock);
 364
 365         total += (p - page);
 366         if (total >= off + count)
 367                 *eof = 1;
 368
 369         if (total < off) {
 370                 *eof = 1;
 371                 return 0;
 372         }
 373
 374         len = total - off;
 375         if (len > (p - page))
 376                 len = p - page;
 377         *start = p - len;
 378         if (len > count)
 379                 len = count;
 380
 381         return len;
 382 }
 383 #endif /* PRISM2_NO_STATION_MODES */
 384
 385
 386 void hostap_init_proc(local_info_t *local)
 387 {
 388         local->proc = NULL;
 389
 390         if (hostap_proc == NULL) {
 391                 printk(KERN_WARNING "%s: hostap proc directory not created\n",
 392                        local->dev->name);
 393                 return;
 394         }
 395
 396         local->proc = proc_mkdir(local->ddev->name, hostap_proc);
 397         if (local->proc == NULL) {
 398                 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
 399                        local->ddev->name);
 400                 return;
 401         }
 402
 403 #ifndef PRISM2_NO_PROCFS_DEBUG
 404         create_proc_read_entry("debug", 0, local->proc,
 405                                prism2_debug_proc_read, local);
 406 #endif /* PRISM2_NO_PROCFS_DEBUG */
 407         create_proc_read_entry("stats", 0, local->proc,
 408                                prism2_stats_proc_read, local);
 409         create_proc_read_entry("wds", 0, local->proc,
 410                                prism2_wds_proc_read, local);
 411         create_proc_read_entry("pda", 0, local->proc,
 412                                prism2_pda_proc_read, local);
 413         create_proc_read_entry("aux_dump", 0, local->proc,
 414                                prism2_aux_dump_proc_read, local);
 415         create_proc_read_entry("bss_list", 0, local->proc,
 416                                prism2_bss_list_proc_read, local);
 417         create_proc_read_entry("crypt", 0, local->proc,
 418                                prism2_crypt_proc_read, local);
 419 #ifdef PRISM2_IO_DEBUG
 420         create_proc_read_entry("io_debug", 0, local->proc,
 421                                prism2_io_debug_proc_read, local);
 422 #endif /* PRISM2_IO_DEBUG */
 423 #ifndef PRISM2_NO_STATION_MODES
 424         create_proc_read_entry("scan_results", 0, local->proc,
 425                                prism2_scan_results_proc_read, local);
 426 #endif /* PRISM2_NO_STATION_MODES */
 427 }
 428
 429
 430 void hostap_remove_proc(local_info_t *local)
 431 {
 432         if (local->proc != NULL) {
 433 #ifndef PRISM2_NO_STATION_MODES
 434                 remove_proc_entry("scan_results", local->proc);
 435 #endif /* PRISM2_NO_STATION_MODES */
 436 #ifdef PRISM2_IO_DEBUG
 437                 remove_proc_entry("io_debug", local->proc);
 438 #endif /* PRISM2_IO_DEBUG */
 439                 remove_proc_entry("pda", local->proc);
 440                 remove_proc_entry("aux_dump", local->proc);
 441                 remove_proc_entry("wds", local->proc);
 442                 remove_proc_entry("stats", local->proc);
 443                 remove_proc_entry("bss_list", local->proc);
 444                 remove_proc_entry("crypt", local->proc);
 445 #ifndef PRISM2_NO_PROCFS_DEBUG
 446                 remove_proc_entry("debug", local->proc);
 447 #endif /* PRISM2_NO_PROCFS_DEBUG */
 448                 if (hostap_proc != NULL)
 449                         remove_proc_entry(local->proc->name, hostap_proc);
 450         }
 451 }
 452
 453
 454 EXPORT_SYMBOL(hostap_init_proc);
 455 EXPORT_SYMBOL(hostap_remove_proc);