drivers/net/wireless/intersil/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
 172         if (ptr == &local->bss_list) {
 173                 seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
 174                            "SSID(hex)\tWPA IE\n");
 175                 return 0;
 176         }
 177
 178         bss = list_entry(ptr, struct hostap_bss_info, list);
 179         seq_printf(m, "%pM\t%lu\t%u\t0x%x\t",
 180                    bss->bssid, bss->last_update,
 181                    bss->count, bss->capab_info);
 182
 183         seq_printf(m, "%*pE", (int)bss->ssid_len, bss->ssid);
 184
 185         seq_putc(m, '\t');
 186         seq_printf(m, "%*phN", (int)bss->ssid_len, bss->ssid);
 187         seq_putc(m, '\t');
 188         seq_printf(m, "%*phN", (int)bss->wpa_ie_len, bss->wpa_ie);
 189         seq_putc(m, '\n');
 190         return 0;
 191 }
 192
 193 static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos)
 194 {
 195         local_info_t *local = m->private;
 196         spin_lock_bh(&local->lock);
 197         return seq_list_start_head(&local->bss_list, *_pos);
 198 }
 199
 200 static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos)
 201 {
 202         local_info_t *local = m->private;
 203         return seq_list_next(v, &local->bss_list, _pos);
 204 }
 205
 206 static void prism2_bss_list_proc_stop(struct seq_file *m, void *v)
 207 {
 208         local_info_t *local = m->private;
 209         spin_unlock_bh(&local->lock);
 210 }
 211
 212 static const struct seq_operations prism2_bss_list_proc_seqops = {
 213         .start  = prism2_bss_list_proc_start,
 214         .next   = prism2_bss_list_proc_next,
 215         .stop   = prism2_bss_list_proc_stop,
 216         .show   = prism2_bss_list_proc_show,
 217 };
 218
 219 static int prism2_bss_list_proc_open(struct inode *inode, struct file *file)
 220 {
 221         int ret = seq_open(file, &prism2_bss_list_proc_seqops);
 222         if (ret == 0) {
 223                 struct seq_file *m = file->private_data;
 224                 m->private = PDE_DATA(inode);
 225         }
 226         return ret;
 227 }
 228
 229 static const struct file_operations prism2_bss_list_proc_fops = {
 230         .open           = prism2_bss_list_proc_open,
 231         .read           = seq_read,
 232         .llseek         = seq_lseek,
 233         .release        = seq_release,
 234 };
 235
 236
 237 static int prism2_crypt_proc_show(struct seq_file *m, void *v)
 238 {
 239         local_info_t *local = m->private;
 240         int i;
 241
 242         seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
 243         for (i = 0; i < WEP_KEYS; i++) {
 244                 if (local->crypt_info.crypt[i] &&
 245                     local->crypt_info.crypt[i]->ops &&
 246                     local->crypt_info.crypt[i]->ops->print_stats) {
 247                         local->crypt_info.crypt[i]->ops->print_stats(
 248                                 m, local->crypt_info.crypt[i]->priv);
 249                 }
 250         }
 251         return 0;
 252 }
 253
 254 static int prism2_crypt_proc_open(struct inode *inode, struct file *file)
 255 {
 256         return single_open(file, prism2_crypt_proc_show, PDE_DATA(inode));
 257 }
 258
 259 static const struct file_operations prism2_crypt_proc_fops = {
 260         .open           = prism2_crypt_proc_open,
 261         .read           = seq_read,
 262         .llseek         = seq_lseek,
 263         .release        = single_release,
 264 };
 265
 266
 267 static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf,
 268                                     size_t count, loff_t *_pos)
 269 {
 270         local_info_t *local = PDE_DATA(file_inode(file));
 271         size_t off;
 272
 273         if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE)
 274                 return 0;
 275
 276         off = *_pos;
 277         if (count > PRISM2_PDA_SIZE - off)
 278                 count = PRISM2_PDA_SIZE - off;
 279         if (copy_to_user(buf, local->pda + off, count) != 0)
 280                 return -EFAULT;
 281         *_pos += count;
 282         return count;
 283 }
 284
 285 static const struct file_operations prism2_pda_proc_fops = {
 286         .read           = prism2_pda_proc_read,
 287         .llseek         = generic_file_llseek,
 288 };
 289
 290
 291 static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf,
 292                                             size_t bufsize, loff_t *_pos)
 293 {
 294         return 0;
 295 }
 296
 297 static const struct file_operations prism2_aux_dump_proc_fops = {
 298         .read           = prism2_aux_dump_proc_no_read,
 299 };
 300
 301
 302 #ifdef PRISM2_IO_DEBUG
 303 static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
 304                                      int count, int *eof, void *data)
 305 {
 306         local_info_t *local = (local_info_t *) data;
 307         int head = local->io_debug_head;
 308         int start_bytes, left, copy, copied;
 309
 310         if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
 311                 *eof = 1;
 312                 if (off >= PRISM2_IO_DEBUG_SIZE * 4)
 313                         return 0;
 314                 count = PRISM2_IO_DEBUG_SIZE * 4 - off;
 315         }
 316
 317         copied = 0;
 318         start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
 319         left = count;
 320
 321         if (off < start_bytes) {
 322                 copy = start_bytes - off;
 323                 if (copy > count)
 324                         copy = count;
 325                 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
 326                 left -= copy;
 327                 if (left > 0)
 328                         memcpy(&page[copy], local->io_debug, left);
 329         } else {
 330                 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
 331                        left);
 332         }
 333
 334         *start = page;
 335
 336         return count;
 337 }
 338 #endif /* PRISM2_IO_DEBUG */
 339
 340
 341 #ifndef PRISM2_NO_STATION_MODES
 342 static int prism2_scan_results_proc_show(struct seq_file *m, void *v)
 343 {
 344         local_info_t *local = m->private;
 345         unsigned long entry;
 346         int i, len;
 347         struct hfa384x_hostscan_result *scanres;
 348         u8 *p;
 349
 350         if (v == SEQ_START_TOKEN) {
 351                 seq_printf(m,
 352                            "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n");
 353                 return 0;
 354         }
 355
 356         entry = (unsigned long)v - 2;
 357         scanres = &local->last_scan_results[entry];
 358
 359         seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ",
 360                    le16_to_cpu(scanres->chid),
 361                    (s16) le16_to_cpu(scanres->anl),
 362                    (s16) le16_to_cpu(scanres->sl),
 363                    le16_to_cpu(scanres->beacon_interval),
 364                    le16_to_cpu(scanres->capability),
 365                    le16_to_cpu(scanres->rate),
 366                    scanres->bssid,
 367                    le16_to_cpu(scanres->atim));
 368
 369         p = scanres->sup_rates;
 370         for (i = 0; i < sizeof(scanres->sup_rates); i++) {
 371                 if (p[i] == 0)
 372                         break;
 373                 seq_printf(m, "<%02x>", p[i]);
 374         }
 375         seq_putc(m, ' ');
 376
 377         p = scanres->ssid;
 378         len = le16_to_cpu(scanres->ssid_len);
 379         if (len > 32)
 380                 len = 32;
 381         for (i = 0; i < len; i++) {
 382                 unsigned char c = p[i];
 383                 if (c >= 32 && c < 127)
 384                         seq_putc(m, c);
 385                 else
 386                         seq_printf(m, "<%02x>", c);
 387         }
 388         seq_putc(m, '\n');
 389         return 0;
 390 }
 391
 392 static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos)
 393 {
 394         local_info_t *local = m->private;
 395         spin_lock_bh(&local->lock);
 396
 397         /* We have a header (pos 0) + N results to show (pos 1...N) */
 398         if (*_pos > local->last_scan_results_count)
 399                 return NULL;
 400         return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
 401 }
 402
 403 static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos)
 404 {
 405         local_info_t *local = m->private;
 406
 407         ++*_pos;
 408         if (*_pos > local->last_scan_results_count)
 409                 return NULL;
 410         return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
 411 }
 412
 413 static void prism2_scan_results_proc_stop(struct seq_file *m, void *v)
 414 {
 415         local_info_t *local = m->private;
 416         spin_unlock_bh(&local->lock);
 417 }
 418
 419 static const struct seq_operations prism2_scan_results_proc_seqops = {
 420         .start  = prism2_scan_results_proc_start,
 421         .next   = prism2_scan_results_proc_next,
 422         .stop   = prism2_scan_results_proc_stop,
 423         .show   = prism2_scan_results_proc_show,
 424 };
 425
 426 static int prism2_scan_results_proc_open(struct inode *inode, struct file *file)
 427 {
 428         int ret = seq_open(file, &prism2_scan_results_proc_seqops);
 429         if (ret == 0) {
 430                 struct seq_file *m = file->private_data;
 431                 m->private = PDE_DATA(inode);
 432         }
 433         return ret;
 434 }
 435
 436 static const struct file_operations prism2_scan_results_proc_fops = {
 437         .open           = prism2_scan_results_proc_open,
 438         .read           = seq_read,
 439         .llseek         = seq_lseek,
 440         .release        = seq_release,
 441 };
 442
 443
 444 #endif /* PRISM2_NO_STATION_MODES */
 445
 446
 447 void hostap_init_proc(local_info_t *local)
 448 {
 449         local->proc = NULL;
 450
 451         if (hostap_proc == NULL) {
 452                 printk(KERN_WARNING "%s: hostap proc directory not created\n",
 453                        local->dev->name);
 454                 return;
 455         }
 456
 457         local->proc = proc_mkdir(local->ddev->name, hostap_proc);
 458         if (local->proc == NULL) {
 459                 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
 460                        local->ddev->name);
 461                 return;
 462         }
 463
 464 #ifndef PRISM2_NO_PROCFS_DEBUG
 465         proc_create_data("debug", 0, local->proc,
 466                          &prism2_debug_proc_fops, local);
 467 #endif /* PRISM2_NO_PROCFS_DEBUG */
 468         proc_create_data("stats", 0, local->proc,
 469                          &prism2_stats_proc_fops, local);
 470         proc_create_data("wds", 0, local->proc,
 471                          &prism2_wds_proc_fops, local);
 472         proc_create_data("pda", 0, local->proc,
 473                          &prism2_pda_proc_fops, local);
 474         proc_create_data("aux_dump", 0, local->proc,
 475                          local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops,
 476                          local);
 477         proc_create_data("bss_list", 0, local->proc,
 478                          &prism2_bss_list_proc_fops, local);
 479         proc_create_data("crypt", 0, local->proc,
 480                          &prism2_crypt_proc_fops, local);
 481 #ifdef PRISM2_IO_DEBUG
 482         proc_create_data("io_debug", 0, local->proc,
 483                          &prism2_io_debug_proc_fops, local);
 484 #endif /* PRISM2_IO_DEBUG */
 485 #ifndef PRISM2_NO_STATION_MODES
 486         proc_create_data("scan_results", 0, local->proc,
 487                          &prism2_scan_results_proc_fops, local);
 488 #endif /* PRISM2_NO_STATION_MODES */
 489 }
 490
 491
 492 void hostap_remove_proc(local_info_t *local)
 493 {
 494         proc_remove(local->proc);
 495 }
 496
 497
 498 EXPORT_SYMBOL(hostap_init_proc);
 499 EXPORT_SYMBOL(hostap_remove_proc);