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 <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
  15 static 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
  56 static 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 = &local->comm_tallies;
  62
  63         if (off != 0) {
  64                 *eof = 1;
  65                 return 0;
  66         }
  67
  68         p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
  69         p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
  70         p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments);
  71         p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
  72         p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
  73         p += sprintf(p, "TxDeferredTransmissions=%u\n",
  74                      sums->tx_deferred_transmissions);
  75         p += sprintf(p, "TxSingleRetryFrames=%u\n",
  76                      sums->tx_single_retry_frames);
  77         p += sprintf(p, "TxMultipleRetryFrames=%u\n",
  78                      sums->tx_multiple_retry_frames);
  79         p += sprintf(p, "TxRetryLimitExceeded=%u\n",
  80                      sums->tx_retry_limit_exceeded);
  81         p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards);
  82         p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
  83         p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
  84         p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments);
  85         p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
  86         p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
  87         p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
  88         p += sprintf(p, "RxDiscardsNoBuffer=%u\n",
  89                      sums->rx_discards_no_buffer);
  90         p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
  91         p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n",
  92                      sums->rx_discards_wep_undecryptable);
  93         p += sprintf(p, "RxMessageInMsgFragments=%u\n",
  94                      sums->rx_message_in_msg_fragments);
  95         p += sprintf(p, "RxMessageInBadMsgFragments=%u\n",
  96                      sums->rx_message_in_bad_msg_fragments);
  97         /* FIX: this may grow too long for one page(?) */
  98
  99         return (p - page);
 100 }
 101
 102
 103 static int prism2_wds_proc_read(char *page, char **start, off_t off,
 104                                 int count, int *eof, void *data)
 105 {
 106         char *p = page;
 107         local_info_t *local = (local_info_t *) data;
 108         struct list_head *ptr;
 109         struct hostap_interface *iface;
 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%pM\n",
 122                              iface->dev->name,
 123                              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
 152         if (off > PROC_LIMIT) {
 153                 *eof = 1;
 154                 return 0;
 155         }
 156
 157         p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
 158                      "SSID(hex)\tWPA IE\n");
 159         spin_lock_bh(&local->lock);
 160         list_for_each(ptr, &local->bss_list) {
 161                 bss = list_entry(ptr, struct hostap_bss_info, list);
 162                 p += sprintf(p, "%pM\t%lu\t%u\t0x%x\t",
 163                              bss->bssid, bss->last_update,
 164                              bss->count, bss->capab_info);
 165                 for (i = 0; i < bss->ssid_len; i++) {
 166                         p += sprintf(p, "%c",
 167                                      bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
 168                                      bss->ssid[i] : '_');
 169                 }
 170                 p += sprintf(p, "\t");
 171                 for (i = 0; i < bss->ssid_len; i++) {
 172                         p += sprintf(p, "%02x", bss->ssid[i]);
 173                 }
 174                 p += sprintf(p, "\t");
 175                 for (i = 0; i < bss->wpa_ie_len; i++) {
 176                         p += sprintf(p, "%02x", bss->wpa_ie[i]);
 177                 }
 178                 p += sprintf(p, "\n");
 179                 if ((p - page) > PROC_LIMIT) {
 180                         printk(KERN_DEBUG "%s: BSS proc did not fit\n",
 181                                local->dev->name);
 182                         break;
 183                 }
 184         }
 185         spin_unlock_bh(&local->lock);
 186
 187         if ((p - page) <= off) {
 188                 *eof = 1;
 189                 return 0;
 190         }
 191
 192         *start = page + off;
 193
 194         return (p - page - off);
 195 }
 196
 197
 198 static int prism2_crypt_proc_read(char *page, char **start, off_t off,
 199                                   int count, int *eof, void *data)
 200 {
 201         char *p = page;
 202         local_info_t *local = (local_info_t *) data;
 203         int i;
 204
 205         if (off > PROC_LIMIT) {
 206                 *eof = 1;
 207                 return 0;
 208         }
 209
 210         p += sprintf(p, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
 211         for (i = 0; i < WEP_KEYS; i++) {
 212                 if (local->crypt_info.crypt[i] &&
 213                     local->crypt_info.crypt[i]->ops &&
 214                     local->crypt_info.crypt[i]->ops->print_stats) {
 215                         p = local->crypt_info.crypt[i]->ops->print_stats(
 216                                 p, local->crypt_info.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
 318         p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates "
 319                      "SSID\n");
 320
 321         spin_lock_bh(&local->lock);
 322         for (entry = 0; entry < local->last_scan_results_count; entry++) {
 323                 scanres = &local->last_scan_results[entry];
 324
 325                 if (total + (p - page) <= off) {
 326                         total += p - page;
 327                         p = page;
 328                 }
 329                 if (total + (p - page) > off + count)
 330                         break;
 331                 if ((p - page) > (PAGE_SIZE - 200))
 332                         break;
 333
 334                 p += sprintf(p, "%d %d %d %d 0x%02x %d %pM %d ",
 335                              le16_to_cpu(scanres->chid),
 336                              (s16) le16_to_cpu(scanres->anl),
 337                              (s16) le16_to_cpu(scanres->sl),
 338                              le16_to_cpu(scanres->beacon_interval),
 339                              le16_to_cpu(scanres->capability),
 340                              le16_to_cpu(scanres->rate),
 341                              scanres->bssid,
 342                              le16_to_cpu(scanres->atim));
 343
 344                 pos = scanres->sup_rates;
 345                 for (i = 0; i < sizeof(scanres->sup_rates); i++) {
 346                         if (pos[i] == 0)
 347                                 break;
 348                         p += sprintf(p, "<%02x>", pos[i]);
 349                 }
 350                 p += sprintf(p, " ");
 351
 352                 pos = scanres->ssid;
 353                 len = le16_to_cpu(scanres->ssid_len);
 354                 if (len > 32)
 355                         len = 32;
 356                 for (i = 0; i < len; i++) {
 357                         unsigned char c = pos[i];
 358                         if (c >= 32 && c < 127)
 359                                 p += sprintf(p, "%c", c);
 360                         else
 361                                 p += sprintf(p, "<%02x>", c);
 362                 }
 363                 p += sprintf(p, "\n");
 364         }
 365         spin_unlock_bh(&local->lock);
 366
 367         total += (p - page);
 368         if (total >= off + count)
 369                 *eof = 1;
 370
 371         if (total < off) {
 372                 *eof = 1;
 373                 return 0;
 374         }
 375
 376         len = total - off;
 377         if (len > (p - page))
 378                 len = p - page;
 379         *start = p - len;
 380         if (len > count)
 381                 len = count;
 382
 383         return len;
 384 }
 385 #endif /* PRISM2_NO_STATION_MODES */
 386
 387
 388 void hostap_init_proc(local_info_t *local)
 389 {
 390         local->proc = NULL;
 391
 392         if (hostap_proc == NULL) {
 393                 printk(KERN_WARNING "%s: hostap proc directory not created\n",
 394                        local->dev->name);
 395                 return;
 396         }
 397
 398         local->proc = proc_mkdir(local->ddev->name, hostap_proc);
 399         if (local->proc == NULL) {
 400                 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
 401                        local->ddev->name);
 402                 return;
 403         }
 404
 405 #ifndef PRISM2_NO_PROCFS_DEBUG
 406         create_proc_read_entry("debug", 0, local->proc,
 407                                prism2_debug_proc_read, local);
 408 #endif /* PRISM2_NO_PROCFS_DEBUG */
 409         create_proc_read_entry("stats", 0, local->proc,
 410                                prism2_stats_proc_read, local);
 411         create_proc_read_entry("wds", 0, local->proc,
 412                                prism2_wds_proc_read, local);
 413         create_proc_read_entry("pda", 0, local->proc,
 414                                prism2_pda_proc_read, local);
 415         create_proc_read_entry("aux_dump", 0, local->proc,
 416                                prism2_aux_dump_proc_read, local);
 417         create_proc_read_entry("bss_list", 0, local->proc,
 418                                prism2_bss_list_proc_read, local);
 419         create_proc_read_entry("crypt", 0, local->proc,
 420                                prism2_crypt_proc_read, local);
 421 #ifdef PRISM2_IO_DEBUG
 422         create_proc_read_entry("io_debug", 0, local->proc,
 423                                prism2_io_debug_proc_read, local);
 424 #endif /* PRISM2_IO_DEBUG */
 425 #ifndef PRISM2_NO_STATION_MODES
 426         create_proc_read_entry("scan_results", 0, local->proc,
 427                                prism2_scan_results_proc_read, local);
 428 #endif /* PRISM2_NO_STATION_MODES */
 429 }
 430
 431
 432 void hostap_remove_proc(local_info_t *local)
 433 {
 434         if (local->proc != NULL) {
 435 #ifndef PRISM2_NO_STATION_MODES
 436                 remove_proc_entry("scan_results", local->proc);
 437 #endif /* PRISM2_NO_STATION_MODES */
 438 #ifdef PRISM2_IO_DEBUG
 439                 remove_proc_entry("io_debug", local->proc);
 440 #endif /* PRISM2_IO_DEBUG */
 441                 remove_proc_entry("pda", local->proc);
 442                 remove_proc_entry("aux_dump", local->proc);
 443                 remove_proc_entry("wds", local->proc);
 444                 remove_proc_entry("stats", local->proc);
 445                 remove_proc_entry("bss_list", local->proc);
 446                 remove_proc_entry("crypt", local->proc);
 447 #ifndef PRISM2_NO_PROCFS_DEBUG
 448                 remove_proc_entry("debug", local->proc);
 449 #endif /* PRISM2_NO_PROCFS_DEBUG */
 450                 if (hostap_proc != NULL)
 451                         remove_proc_entry(local->proc->name, hostap_proc);
 452         }
 453 }
 454
 455
 456 EXPORT_SYMBOL(hostap_init_proc);
 457 EXPORT_SYMBOL(hostap_remove_proc);