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_show(struct seq_file *m, void *v)
  16 {
  17         local_info_t *local = m->private;
  18         int i;
  19
  20         seq_printf(m, "next_txfid=%d next_alloc=%d\n",
  21                    local->next_txfid, local->next_alloc);
  22         for (i = 0; i < PRISM2_TXFID_COUNT; i++)
  23                 seq_printf(m, "FID: tx=%04X intransmit=%04X\n",
  24                            local->txfid[i], local->intransmitfid[i]);
  25         seq_printf(m, "FW TX rate control: %d\n", local->fw_tx_rate_control);
  26         seq_printf(m, "beacon_int=%d\n", local->beacon_int);
  27         seq_printf(m, "dtim_period=%d\n", local->dtim_period);
  28         seq_printf(m, "wds_max_connections=%d\n", local->wds_max_connections);
  29         seq_printf(m, "dev_enabled=%d\n", local->dev_enabled);
  30         seq_printf(m, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
  31         for (i = 0; i < WEP_KEYS; i++) {
  32                 if (local->crypt_info.crypt[i] &&
  33                     local->crypt_info.crypt[i]->ops) {
  34                         seq_printf(m, "crypt[%d]=%s\n", i,
  35                                    local->crypt_info.crypt[i]->ops->name);
  36                 }
  37         }
  38         seq_printf(m, "pri_only=%d\n", local->pri_only);
  39         seq_printf(m, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
  40         seq_printf(m, "sram_type=%d\n", local->sram_type);
  41         seq_printf(m, "no_pri=%d\n", local->no_pri);
  42
  43         return 0;
  44 }
  45
  46 static int prism2_debug_proc_open(struct inode *inode, struct file *file)
  47 {
  48         return single_open(file, prism2_debug_proc_show, PDE_DATA(inode));
  49 }
  50
  51 static const struct file_operations prism2_debug_proc_fops = {
  52         .open           = prism2_debug_proc_open,
  53         .read           = seq_read,
  54         .llseek         = seq_lseek,
  55         .release        = single_release,
  56 };
  57 #endif /* PRISM2_NO_PROCFS_DEBUG */
  58
  59
  60 static int prism2_stats_proc_show(struct seq_file *m, void *v)
  61 {
  62         local_info_t *local = m->private;
  63         struct comm_tallies_sums *sums = &local->comm_tallies;
  64
  65         seq_printf(m, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
  66         seq_printf(m, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
  67         seq_printf(m, "TxFragments=%u\n", sums->tx_fragments);
  68         seq_printf(m, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
  69         seq_printf(m, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
  70         seq_printf(m, "TxDeferredTransmissions=%u\n",
  71                    sums->tx_deferred_transmissions);
  72         seq_printf(m, "TxSingleRetryFrames=%u\n", sums->tx_single_retry_frames);
  73         seq_printf(m, "TxMultipleRetryFrames=%u\n",
  74                    sums->tx_multiple_retry_frames);
  75         seq_printf(m, "TxRetryLimitExceeded=%u\n",
  76                    sums->tx_retry_limit_exceeded);
  77         seq_printf(m, "TxDiscards=%u\n", sums->tx_discards);
  78         seq_printf(m, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
  79         seq_printf(m, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
  80         seq_printf(m, "RxFragments=%u\n", sums->rx_fragments);
  81         seq_printf(m, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
  82         seq_printf(m, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
  83         seq_printf(m, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
  84         seq_printf(m, "RxDiscardsNoBuffer=%u\n", sums->rx_discards_no_buffer);
  85         seq_printf(m, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
  86         seq_printf(m, "RxDiscardsWEPUndecryptable=%u\n",
  87                    sums->rx_discards_wep_undecryptable);
  88         seq_printf(m, "RxMessageInMsgFragments=%u\n",
  89                    sums->rx_message_in_msg_fragments);
  90         seq_printf(m, "RxMessageInBadMsgFragments=%u\n",
  91                    sums->rx_message_in_bad_msg_fragments);
  92         /* FIX: this may grow too long for one page(?) */
  93
  94         return 0;
  95 }
  96
  97 static int prism2_stats_proc_open(struct inode *inode, struct file *file)
  98 {
  99         return single_open(file, prism2_stats_proc_show, PDE_DATA(inode));
 100 }
 101
 102 static const struct file_operations prism2_stats_proc_fops = {
 103         .open           = prism2_stats_proc_open,
 104         .read           = seq_read,
 105         .llseek         = seq_lseek,
 106         .release        = single_release,
 107 };
 108
 109
 110 static int prism2_wds_proc_show(struct seq_file *m, void *v)
 111 {
 112         struct list_head *ptr = v;
 113         struct hostap_interface *iface;
 114
 115         iface = list_entry(ptr, struct hostap_interface, list);
 116         if (iface->type == HOSTAP_INTERFACE_WDS)
 117                 seq_printf(m, "%s\t%pM\n",
 118                            iface->dev->name, iface->u.wds.remote_addr);
 119         return 0;
 120 }
 121
 122 static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos)
 123 {
 124         local_info_t *local = m->private;
 125         read_lock_bh(&local->iface_lock);
 126         return seq_list_start(&local->hostap_interfaces, *_pos);
 127 }
 128
 129 static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos)
 130 {
 131         local_info_t *local = m->private;
 132         return seq_list_next(v, &local->hostap_interfaces, _pos);
 133 }
 134
 135 static void prism2_wds_proc_stop(struct seq_file *m, void *v)
 136 {
 137         local_info_t *local = m->private;
 138         read_unlock_bh(&local->iface_lock);
 139 }
 140
 141 static const struct seq_operations prism2_wds_proc_seqops = {
 142         .start  = prism2_wds_proc_start,
 143         .next   = prism2_wds_proc_next,
 144         .stop   = prism2_wds_proc_stop,
 145         .show   = prism2_wds_proc_show,
 146 };
 147
 148 static int prism2_wds_proc_open(struct inode *inode, struct file *file)
 149 {
 150         int ret = seq_open(file, &prism2_wds_proc_seqops);
 151         if (ret == 0) {
 152                 struct seq_file *m = file->private_data;
 153                 m->private = PDE_DATA(inode);
 154         }
 155         return ret;
 156 }
 157
 158 static const struct file_operations prism2_wds_proc_fops = {
 159         .open           = prism2_wds_proc_open,
 160         .read           = seq_read,
 161         .llseek         = seq_lseek,
 162         .release        = seq_release,
 163 };
 164
 165
 166 static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
 167 {
 168         local_info_t *local = m->private;
 169         struct list_head *ptr = v;
 170         struct hostap_bss_info *bss;
 171         int i;
 172
 173         if (ptr == &local->bss_list) {
 174                 seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
 175                            "SSID(hex)\tWPA IE\n");
 176                 return 0;
 177         }
 178
 179         bss = list_entry(ptr, struct hostap_bss_info, list);
 180         seq_printf(m, "%pM\t%lu\t%u\t0x%x\t",
 181                    bss->bssid, bss->last_update,
 182                    bss->count, bss->capab_info);
 183
 184         for (i = 0; i < bss->ssid_len; i++)
 185                 seq_putc(m,bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
 186                            bss->ssid[i] : '_');
 187
 188         seq_putc(m, '\t');
 189         for (i = 0; i < bss->ssid_len; i++)
 190                 seq_printf(m, "%02x", bss->ssid[i]);
 191         seq_putc(m, '\t');
 192         for (i = 0; i < bss->wpa_ie_len; i++)
 193                 seq_printf(m, "%02x", bss->wpa_ie[i]);
 194         seq_putc(m, '\n');
 195         return 0;
 196 }
 197
 198 static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos)
 199 {
 200         local_info_t *local = m->private;
 201         spin_lock_bh(&local->lock);
 202         return seq_list_start_head(&local->bss_list, *_pos);
 203 }
 204
 205 static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos)
 206 {
 207         local_info_t *local = m->private;
 208         return seq_list_next(v, &local->bss_list, _pos);
 209 }
 210
 211 static void prism2_bss_list_proc_stop(struct seq_file *m, void *v)
 212 {
 213         local_info_t *local = m->private;
 214         spin_unlock_bh(&local->lock);
 215 }
 216
 217 static const struct seq_operations prism2_bss_list_proc_seqops = {
 218         .start  = prism2_bss_list_proc_start,
 219         .next   = prism2_bss_list_proc_next,
 220         .stop   = prism2_bss_list_proc_stop,
 221         .show   = prism2_bss_list_proc_show,
 222 };
 223
 224 static int prism2_bss_list_proc_open(struct inode *inode, struct file *file)
 225 {
 226         int ret = seq_open(file, &prism2_bss_list_proc_seqops);
 227         if (ret == 0) {
 228                 struct seq_file *m = file->private_data;
 229                 m->private = PDE_DATA(inode);
 230         }
 231         return ret;
 232 }
 233
 234 static const struct file_operations prism2_bss_list_proc_fops = {
 235         .open           = prism2_bss_list_proc_open,
 236         .read           = seq_read,
 237         .llseek         = seq_lseek,
 238         .release        = seq_release,
 239 };
 240
 241
 242 static int prism2_crypt_proc_show(struct seq_file *m, void *v)
 243 {
 244         local_info_t *local = m->private;
 245         int i;
 246
 247         seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
 248         for (i = 0; i < WEP_KEYS; i++) {
 249                 if (local->crypt_info.crypt[i] &&
 250                     local->crypt_info.crypt[i]->ops &&
 251                     local->crypt_info.crypt[i]->ops->print_stats) {
 252                         local->crypt_info.crypt[i]->ops->print_stats(
 253                                 m, local->crypt_info.crypt[i]->priv);
 254                 }
 255         }
 256         return 0;
 257 }
 258
 259 static int prism2_crypt_proc_open(struct inode *inode, struct file *file)
 260 {
 261         return single_open(file, prism2_crypt_proc_show, PDE_DATA(inode));
 262 }
 263
 264 static const struct file_operations prism2_crypt_proc_fops = {
 265         .open           = prism2_crypt_proc_open,
 266         .read           = seq_read,
 267         .llseek         = seq_lseek,
 268         .release        = single_release,
 269 };
 270
 271
 272 static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf,
 273                                     size_t count, loff_t *_pos)
 274 {
 275         local_info_t *local = PDE_DATA(file_inode(file));
 276         size_t off;
 277
 278         if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE)
 279                 return 0;
 280
 281         off = *_pos;
 282         if (count > PRISM2_PDA_SIZE - off)
 283                 count = PRISM2_PDA_SIZE - off;
 284         if (copy_to_user(buf, local->pda + off, count) != 0)
 285                 return -EFAULT;
 286         *_pos += count;
 287         return count;
 288 }
 289
 290 static const struct file_operations prism2_pda_proc_fops = {
 291         .read           = prism2_pda_proc_read,
 292         .llseek         = generic_file_llseek,
 293 };
 294
 295
 296 static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf,
 297                                             size_t bufsize, loff_t *_pos)
 298 {
 299         return 0;
 300 }
 301
 302 static const struct file_operations prism2_aux_dump_proc_fops = {
 303         .read           = prism2_aux_dump_proc_no_read,
 304 };
 305
 306
 307 #ifdef PRISM2_IO_DEBUG
 308 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
 309                                      int count, int *eof, void *data)
 310 {
 311         local_info_t *local = (local_info_t *) data;
 312         int head = local->io_debug_head;
 313         int start_bytes, left, copy, copied;
 314
 315         if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
 316                 *eof = 1;
 317                 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
 318                         return 0;
 319                 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
 320         }
 321
 322         copied = 0;
 323         start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
 324         left = count;
 325
 326         if (off < start_bytes) {
 327                 copy = start_bytes - off;
 328                 if (copy > count)
 329                         copy = count;
 330                 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
 331                 left -= copy;
 332                 if (left > 0)
 333                         memcpy(&page[copy], local->io_debug, left);
 334         } else {
 335                 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
 336                        left);
 337         }
 338
 339         *start = page;
 340
 341         return count;
 342 }
 343 #endif /* PRISM2_IO_DEBUG */
 344
 345
 346 #ifndef PRISM2_NO_STATION_MODES
 347 static int prism2_scan_results_proc_show(struct seq_file *m, void *v)
 348 {
 349         local_info_t *local = m->private;
 350         unsigned long entry;
 351         int i, len;
 352         struct hfa384x_hostscan_result *scanres;
 353         u8 *p;
 354
 355         if (v == SEQ_START_TOKEN) {
 356                 seq_printf(m,
 357                            "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n");
 358                 return 0;
 359         }
 360
 361         entry = (unsigned long)v - 2;
 362         scanres = &local->last_scan_results[entry];
 363
 364         seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ",
 365                    le16_to_cpu(scanres->chid),
 366                    (s16) le16_to_cpu(scanres->anl),
 367                    (s16) le16_to_cpu(scanres->sl),
 368                    le16_to_cpu(scanres->beacon_interval),
 369                    le16_to_cpu(scanres->capability),
 370                    le16_to_cpu(scanres->rate),
 371                    scanres->bssid,
 372                    le16_to_cpu(scanres->atim));
 373
 374         p = scanres->sup_rates;
 375         for (i = 0; i < sizeof(scanres->sup_rates); i++) {
 376                 if (p[i] == 0)
 377                         break;
 378                 seq_printf(m, "<%02x>", p[i]);
 379         }
 380         seq_putc(m, ' ');
 381
 382         p = scanres->ssid;
 383         len = le16_to_cpu(scanres->ssid_len);
 384         if (len > 32)
 385                 len = 32;
 386         for (i = 0; i < len; i++) {
 387                 unsigned char c = p[i];
 388                 if (c >= 32 && c < 127)
 389                         seq_putc(m, c);
 390                 else
 391                         seq_printf(m, "<%02x>", c);
 392         }
 393         seq_putc(m, '\n');
 394         return 0;
 395 }
 396
 397 static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos)
 398 {
 399         local_info_t *local = m->private;
 400         spin_lock_bh(&local->lock);
 401
 402         /* We have a header (pos 0) + N results to show (pos 1...N) */
 403         if (*_pos > local->last_scan_results_count)
 404                 return NULL;
 405         return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
 406 }
 407
 408 static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos)
 409 {
 410         local_info_t *local = m->private;
 411
 412         ++*_pos;
 413         if (*_pos > local->last_scan_results_count)
 414                 return NULL;
 415         return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
 416 }
 417
 418 static void prism2_scan_results_proc_stop(struct seq_file *m, void *v)
 419 {
 420         local_info_t *local = m->private;
 421         spin_unlock_bh(&local->lock);
 422 }
 423
 424 static const struct seq_operations prism2_scan_results_proc_seqops = {
 425         .start  = prism2_scan_results_proc_start,
 426         .next   = prism2_scan_results_proc_next,
 427         .stop   = prism2_scan_results_proc_stop,
 428         .show   = prism2_scan_results_proc_show,
 429 };
 430
 431 static int prism2_scan_results_proc_open(struct inode *inode, struct file *file)
 432 {
 433         int ret = seq_open(file, &prism2_scan_results_proc_seqops);
 434         if (ret == 0) {
 435                 struct seq_file *m = file->private_data;
 436                 m->private = PDE_DATA(inode);
 437         }
 438         return ret;
 439 }
 440
 441 static const struct file_operations prism2_scan_results_proc_fops = {
 442         .open           = prism2_scan_results_proc_open,
 443         .read           = seq_read,
 444         .llseek         = seq_lseek,
 445         .release        = seq_release,
 446 };
 447
 448
 449 #endif /* PRISM2_NO_STATION_MODES */
 450
 451
 452 void hostap_init_proc(local_info_t *local)
 453 {
 454         local->proc = NULL;
 455
 456         if (hostap_proc == NULL) {
 457                 printk(KERN_WARNING "%s: hostap proc directory not created\n",
 458                        local->dev->name);
 459                 return;
 460         }
 461
 462         local->proc = proc_mkdir(local->ddev->name, hostap_proc);
 463         if (local->proc == NULL) {
 464                 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
 465                        local->ddev->name);
 466                 return;
 467         }
 468
 469 #ifndef PRISM2_NO_PROCFS_DEBUG
 470         proc_create_data("debug", 0, local->proc,
 471                          &prism2_debug_proc_fops, local);
 472 #endif /* PRISM2_NO_PROCFS_DEBUG */
 473         proc_create_data("stats", 0, local->proc,
 474                          &prism2_stats_proc_fops, local);
 475         proc_create_data("wds", 0, local->proc,
 476                          &prism2_wds_proc_fops, local);
 477         proc_create_data("pda", 0, local->proc,
 478                          &prism2_pda_proc_fops, local);
 479         proc_create_data("aux_dump", 0, local->proc,
 480                          local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops,
 481                          local);
 482         proc_create_data("bss_list", 0, local->proc,
 483                          &prism2_bss_list_proc_fops, local);
 484         proc_create_data("crypt", 0, local->proc,
 485                          &prism2_crypt_proc_fops, local);
 486 #ifdef PRISM2_IO_DEBUG
 487         proc_create_data("io_debug", 0, local->proc,
 488                          &prism2_io_debug_proc_fops, local);
 489 #endif /* PRISM2_IO_DEBUG */
 490 #ifndef PRISM2_NO_STATION_MODES
 491         proc_create_data("scan_results", 0, local->proc,
 492                          &prism2_scan_results_proc_fops, local);
 493 #endif /* PRISM2_NO_STATION_MODES */
 494 }
 495
 496
 497 void hostap_remove_proc(local_info_t *local)
 498 {
 499         remove_proc_subtree(local->ddev->name, hostap_proc);
 500 }
 501
 502
 503 EXPORT_SYMBOL(hostap_init_proc);
 504 EXPORT_SYMBOL(hostap_remove_proc);