1 // SPDX-License-Identifier: GPL-2.0 2 /* /proc routines for Host AP driver */ 3 4 #include <linux/types.h> 5 #include <linux/proc_fs.h> 6 #include <linux/export.h> 7 #include <net/lib80211.h> 8 9 #include "hostap_wlan.h" 10 #include "hostap.h" 11 12 #define PROC_LIMIT (PAGE_SIZE - 80) 13 14 15 #ifndef PRISM2_NO_PROCFS_DEBUG prism2_debug_proc_show(struct seq_file * m,void * v)16 static int prism2_debug_proc_show(struct seq_file *m, void *v) 17 { 18 local_info_t *local = m->private; 19 int i; 20 21 seq_printf(m, "next_txfid=%d next_alloc=%d\n", 22 local->next_txfid, local->next_alloc); 23 for (i = 0; i < PRISM2_TXFID_COUNT; i++) 24 seq_printf(m, "FID: tx=%04X intransmit=%04X\n", 25 local->txfid[i], local->intransmitfid[i]); 26 seq_printf(m, "FW TX rate control: %d\n", local->fw_tx_rate_control); 27 seq_printf(m, "beacon_int=%d\n", local->beacon_int); 28 seq_printf(m, "dtim_period=%d\n", local->dtim_period); 29 seq_printf(m, "wds_max_connections=%d\n", local->wds_max_connections); 30 seq_printf(m, "dev_enabled=%d\n", local->dev_enabled); 31 seq_printf(m, "sw_tick_stuck=%d\n", local->sw_tick_stuck); 32 for (i = 0; i < WEP_KEYS; i++) { 33 if (local->crypt_info.crypt[i] && 34 local->crypt_info.crypt[i]->ops) { 35 seq_printf(m, "crypt[%d]=%s\n", i, 36 local->crypt_info.crypt[i]->ops->name); 37 } 38 } 39 seq_printf(m, "pri_only=%d\n", local->pri_only); 40 seq_printf(m, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI); 41 seq_printf(m, "sram_type=%d\n", local->sram_type); 42 seq_printf(m, "no_pri=%d\n", local->no_pri); 43 44 return 0; 45 } 46 prism2_debug_proc_open(struct inode * inode,struct file * file)47 static int prism2_debug_proc_open(struct inode *inode, struct file *file) 48 { 49 return single_open(file, prism2_debug_proc_show, PDE_DATA(inode)); 50 } 51 52 static const struct file_operations prism2_debug_proc_fops = { 53 .open = prism2_debug_proc_open, 54 .read = seq_read, 55 .llseek = seq_lseek, 56 .release = single_release, 57 }; 58 #endif /* PRISM2_NO_PROCFS_DEBUG */ 59 60 prism2_stats_proc_show(struct seq_file * m,void * v)61 static int prism2_stats_proc_show(struct seq_file *m, void *v) 62 { 63 local_info_t *local = m->private; 64 struct comm_tallies_sums *sums = &local->comm_tallies; 65 66 seq_printf(m, "TxUnicastFrames=%u\n", sums->tx_unicast_frames); 67 seq_printf(m, "TxMulticastframes=%u\n", sums->tx_multicast_frames); 68 seq_printf(m, "TxFragments=%u\n", sums->tx_fragments); 69 seq_printf(m, "TxUnicastOctets=%u\n", sums->tx_unicast_octets); 70 seq_printf(m, "TxMulticastOctets=%u\n", sums->tx_multicast_octets); 71 seq_printf(m, "TxDeferredTransmissions=%u\n", 72 sums->tx_deferred_transmissions); 73 seq_printf(m, "TxSingleRetryFrames=%u\n", sums->tx_single_retry_frames); 74 seq_printf(m, "TxMultipleRetryFrames=%u\n", 75 sums->tx_multiple_retry_frames); 76 seq_printf(m, "TxRetryLimitExceeded=%u\n", 77 sums->tx_retry_limit_exceeded); 78 seq_printf(m, "TxDiscards=%u\n", sums->tx_discards); 79 seq_printf(m, "RxUnicastFrames=%u\n", sums->rx_unicast_frames); 80 seq_printf(m, "RxMulticastFrames=%u\n", sums->rx_multicast_frames); 81 seq_printf(m, "RxFragments=%u\n", sums->rx_fragments); 82 seq_printf(m, "RxUnicastOctets=%u\n", sums->rx_unicast_octets); 83 seq_printf(m, "RxMulticastOctets=%u\n", sums->rx_multicast_octets); 84 seq_printf(m, "RxFCSErrors=%u\n", sums->rx_fcs_errors); 85 seq_printf(m, "RxDiscardsNoBuffer=%u\n", sums->rx_discards_no_buffer); 86 seq_printf(m, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa); 87 seq_printf(m, "RxDiscardsWEPUndecryptable=%u\n", 88 sums->rx_discards_wep_undecryptable); 89 seq_printf(m, "RxMessageInMsgFragments=%u\n", 90 sums->rx_message_in_msg_fragments); 91 seq_printf(m, "RxMessageInBadMsgFragments=%u\n", 92 sums->rx_message_in_bad_msg_fragments); 93 /* FIX: this may grow too long for one page(?) */ 94 95 return 0; 96 } 97 prism2_stats_proc_open(struct inode * inode,struct file * file)98 static int prism2_stats_proc_open(struct inode *inode, struct file *file) 99 { 100 return single_open(file, prism2_stats_proc_show, PDE_DATA(inode)); 101 } 102 103 static const struct file_operations prism2_stats_proc_fops = { 104 .open = prism2_stats_proc_open, 105 .read = seq_read, 106 .llseek = seq_lseek, 107 .release = single_release, 108 }; 109 110 prism2_wds_proc_show(struct seq_file * m,void * v)111 static int prism2_wds_proc_show(struct seq_file *m, void *v) 112 { 113 struct list_head *ptr = v; 114 struct hostap_interface *iface; 115 116 iface = list_entry(ptr, struct hostap_interface, list); 117 if (iface->type == HOSTAP_INTERFACE_WDS) 118 seq_printf(m, "%s\t%pM\n", 119 iface->dev->name, iface->u.wds.remote_addr); 120 return 0; 121 } 122 prism2_wds_proc_start(struct seq_file * m,loff_t * _pos)123 static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos) 124 { 125 local_info_t *local = m->private; 126 read_lock_bh(&local->iface_lock); 127 return seq_list_start(&local->hostap_interfaces, *_pos); 128 } 129 prism2_wds_proc_next(struct seq_file * m,void * v,loff_t * _pos)130 static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos) 131 { 132 local_info_t *local = m->private; 133 return seq_list_next(v, &local->hostap_interfaces, _pos); 134 } 135 prism2_wds_proc_stop(struct seq_file * m,void * v)136 static void prism2_wds_proc_stop(struct seq_file *m, void *v) 137 { 138 local_info_t *local = m->private; 139 read_unlock_bh(&local->iface_lock); 140 } 141 142 static const struct seq_operations prism2_wds_proc_seqops = { 143 .start = prism2_wds_proc_start, 144 .next = prism2_wds_proc_next, 145 .stop = prism2_wds_proc_stop, 146 .show = prism2_wds_proc_show, 147 }; 148 prism2_wds_proc_open(struct inode * inode,struct file * file)149 static int prism2_wds_proc_open(struct inode *inode, struct file *file) 150 { 151 int ret = seq_open(file, &prism2_wds_proc_seqops); 152 if (ret == 0) { 153 struct seq_file *m = file->private_data; 154 m->private = PDE_DATA(inode); 155 } 156 return ret; 157 } 158 159 static const struct file_operations prism2_wds_proc_fops = { 160 .open = prism2_wds_proc_open, 161 .read = seq_read, 162 .llseek = seq_lseek, 163 .release = seq_release, 164 }; 165 166 prism2_bss_list_proc_show(struct seq_file * m,void * v)167 static int prism2_bss_list_proc_show(struct seq_file *m, void *v) 168 { 169 local_info_t *local = m->private; 170 struct list_head *ptr = v; 171 struct hostap_bss_info *bss; 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 seq_printf(m, "%*pE", (int)bss->ssid_len, bss->ssid); 185 186 seq_putc(m, '\t'); 187 seq_printf(m, "%*phN", (int)bss->ssid_len, bss->ssid); 188 seq_putc(m, '\t'); 189 seq_printf(m, "%*phN", (int)bss->wpa_ie_len, bss->wpa_ie); 190 seq_putc(m, '\n'); 191 return 0; 192 } 193 prism2_bss_list_proc_start(struct seq_file * m,loff_t * _pos)194 static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos) 195 { 196 local_info_t *local = m->private; 197 spin_lock_bh(&local->lock); 198 return seq_list_start_head(&local->bss_list, *_pos); 199 } 200 prism2_bss_list_proc_next(struct seq_file * m,void * v,loff_t * _pos)201 static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos) 202 { 203 local_info_t *local = m->private; 204 return seq_list_next(v, &local->bss_list, _pos); 205 } 206 prism2_bss_list_proc_stop(struct seq_file * m,void * v)207 static void prism2_bss_list_proc_stop(struct seq_file *m, void *v) 208 { 209 local_info_t *local = m->private; 210 spin_unlock_bh(&local->lock); 211 } 212 213 static const struct seq_operations prism2_bss_list_proc_seqops = { 214 .start = prism2_bss_list_proc_start, 215 .next = prism2_bss_list_proc_next, 216 .stop = prism2_bss_list_proc_stop, 217 .show = prism2_bss_list_proc_show, 218 }; 219 prism2_bss_list_proc_open(struct inode * inode,struct file * file)220 static int prism2_bss_list_proc_open(struct inode *inode, struct file *file) 221 { 222 int ret = seq_open(file, &prism2_bss_list_proc_seqops); 223 if (ret == 0) { 224 struct seq_file *m = file->private_data; 225 m->private = PDE_DATA(inode); 226 } 227 return ret; 228 } 229 230 static const struct file_operations prism2_bss_list_proc_fops = { 231 .open = prism2_bss_list_proc_open, 232 .read = seq_read, 233 .llseek = seq_lseek, 234 .release = seq_release, 235 }; 236 237 prism2_crypt_proc_show(struct seq_file * m,void * v)238 static int prism2_crypt_proc_show(struct seq_file *m, void *v) 239 { 240 local_info_t *local = m->private; 241 int i; 242 243 seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx); 244 for (i = 0; i < WEP_KEYS; i++) { 245 if (local->crypt_info.crypt[i] && 246 local->crypt_info.crypt[i]->ops && 247 local->crypt_info.crypt[i]->ops->print_stats) { 248 local->crypt_info.crypt[i]->ops->print_stats( 249 m, local->crypt_info.crypt[i]->priv); 250 } 251 } 252 return 0; 253 } 254 prism2_crypt_proc_open(struct inode * inode,struct file * file)255 static int prism2_crypt_proc_open(struct inode *inode, struct file *file) 256 { 257 return single_open(file, prism2_crypt_proc_show, PDE_DATA(inode)); 258 } 259 260 static const struct file_operations prism2_crypt_proc_fops = { 261 .open = prism2_crypt_proc_open, 262 .read = seq_read, 263 .llseek = seq_lseek, 264 .release = single_release, 265 }; 266 267 prism2_pda_proc_read(struct file * file,char __user * buf,size_t count,loff_t * _pos)268 static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf, 269 size_t count, loff_t *_pos) 270 { 271 local_info_t *local = PDE_DATA(file_inode(file)); 272 size_t off; 273 274 if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE) 275 return 0; 276 277 off = *_pos; 278 if (count > PRISM2_PDA_SIZE - off) 279 count = PRISM2_PDA_SIZE - off; 280 if (copy_to_user(buf, local->pda + off, count) != 0) 281 return -EFAULT; 282 *_pos += count; 283 return count; 284 } 285 286 static const struct file_operations prism2_pda_proc_fops = { 287 .read = prism2_pda_proc_read, 288 .llseek = generic_file_llseek, 289 }; 290 291 prism2_aux_dump_proc_no_read(struct file * file,char __user * buf,size_t bufsize,loff_t * _pos)292 static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf, 293 size_t bufsize, loff_t *_pos) 294 { 295 return 0; 296 } 297 298 static const struct file_operations prism2_aux_dump_proc_fops = { 299 .read = prism2_aux_dump_proc_no_read, 300 }; 301 302 303 #ifdef PRISM2_IO_DEBUG prism2_io_debug_proc_read(char * page,char ** start,off_t off,int count,int * eof,void * data)304 static int prism2_io_debug_proc_read(char *page, char **start, off_t off, 305 int count, int *eof, void *data) 306 { 307 local_info_t *local = (local_info_t *) data; 308 int head = local->io_debug_head; 309 int start_bytes, left, copy, copied; 310 311 if (off + count > PRISM2_IO_DEBUG_SIZE * 4) { 312 *eof = 1; 313 if (off >= PRISM2_IO_DEBUG_SIZE * 4) 314 return 0; 315 count = PRISM2_IO_DEBUG_SIZE * 4 - off; 316 } 317 318 copied = 0; 319 start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4; 320 left = count; 321 322 if (off < start_bytes) { 323 copy = start_bytes - off; 324 if (copy > count) 325 copy = count; 326 memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy); 327 left -= copy; 328 if (left > 0) 329 memcpy(&page[copy], local->io_debug, left); 330 } else { 331 memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes), 332 left); 333 } 334 335 *start = page; 336 337 return count; 338 } 339 #endif /* PRISM2_IO_DEBUG */ 340 341 342 #ifndef PRISM2_NO_STATION_MODES prism2_scan_results_proc_show(struct seq_file * m,void * v)343 static int prism2_scan_results_proc_show(struct seq_file *m, void *v) 344 { 345 local_info_t *local = m->private; 346 unsigned long entry; 347 int i, len; 348 struct hfa384x_hostscan_result *scanres; 349 u8 *p; 350 351 if (v == SEQ_START_TOKEN) { 352 seq_printf(m, 353 "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n"); 354 return 0; 355 } 356 357 entry = (unsigned long)v - 2; 358 scanres = &local->last_scan_results[entry]; 359 360 seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ", 361 le16_to_cpu(scanres->chid), 362 (s16) le16_to_cpu(scanres->anl), 363 (s16) le16_to_cpu(scanres->sl), 364 le16_to_cpu(scanres->beacon_interval), 365 le16_to_cpu(scanres->capability), 366 le16_to_cpu(scanres->rate), 367 scanres->bssid, 368 le16_to_cpu(scanres->atim)); 369 370 p = scanres->sup_rates; 371 for (i = 0; i < sizeof(scanres->sup_rates); i++) { 372 if (p[i] == 0) 373 break; 374 seq_printf(m, "<%02x>", p[i]); 375 } 376 seq_putc(m, ' '); 377 378 p = scanres->ssid; 379 len = le16_to_cpu(scanres->ssid_len); 380 if (len > 32) 381 len = 32; 382 for (i = 0; i < len; i++) { 383 unsigned char c = p[i]; 384 if (c >= 32 && c < 127) 385 seq_putc(m, c); 386 else 387 seq_printf(m, "<%02x>", c); 388 } 389 seq_putc(m, '\n'); 390 return 0; 391 } 392 prism2_scan_results_proc_start(struct seq_file * m,loff_t * _pos)393 static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos) 394 { 395 local_info_t *local = m->private; 396 spin_lock_bh(&local->lock); 397 398 /* We have a header (pos 0) + N results to show (pos 1...N) */ 399 if (*_pos > local->last_scan_results_count) 400 return NULL; 401 return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */ 402 } 403 prism2_scan_results_proc_next(struct seq_file * m,void * v,loff_t * _pos)404 static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos) 405 { 406 local_info_t *local = m->private; 407 408 ++*_pos; 409 if (*_pos > local->last_scan_results_count) 410 return NULL; 411 return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */ 412 } 413 prism2_scan_results_proc_stop(struct seq_file * m,void * v)414 static void prism2_scan_results_proc_stop(struct seq_file *m, void *v) 415 { 416 local_info_t *local = m->private; 417 spin_unlock_bh(&local->lock); 418 } 419 420 static const struct seq_operations prism2_scan_results_proc_seqops = { 421 .start = prism2_scan_results_proc_start, 422 .next = prism2_scan_results_proc_next, 423 .stop = prism2_scan_results_proc_stop, 424 .show = prism2_scan_results_proc_show, 425 }; 426 prism2_scan_results_proc_open(struct inode * inode,struct file * file)427 static int prism2_scan_results_proc_open(struct inode *inode, struct file *file) 428 { 429 int ret = seq_open(file, &prism2_scan_results_proc_seqops); 430 if (ret == 0) { 431 struct seq_file *m = file->private_data; 432 m->private = PDE_DATA(inode); 433 } 434 return ret; 435 } 436 437 static const struct file_operations prism2_scan_results_proc_fops = { 438 .open = prism2_scan_results_proc_open, 439 .read = seq_read, 440 .llseek = seq_lseek, 441 .release = seq_release, 442 }; 443 444 445 #endif /* PRISM2_NO_STATION_MODES */ 446 447 hostap_init_proc(local_info_t * local)448 void hostap_init_proc(local_info_t *local) 449 { 450 local->proc = NULL; 451 452 if (hostap_proc == NULL) { 453 printk(KERN_WARNING "%s: hostap proc directory not created\n", 454 local->dev->name); 455 return; 456 } 457 458 local->proc = proc_mkdir(local->ddev->name, hostap_proc); 459 if (local->proc == NULL) { 460 printk(KERN_INFO "/proc/net/hostap/%s creation failed\n", 461 local->ddev->name); 462 return; 463 } 464 465 #ifndef PRISM2_NO_PROCFS_DEBUG 466 proc_create_data("debug", 0, local->proc, 467 &prism2_debug_proc_fops, local); 468 #endif /* PRISM2_NO_PROCFS_DEBUG */ 469 proc_create_data("stats", 0, local->proc, 470 &prism2_stats_proc_fops, local); 471 proc_create_data("wds", 0, local->proc, 472 &prism2_wds_proc_fops, local); 473 proc_create_data("pda", 0, local->proc, 474 &prism2_pda_proc_fops, local); 475 proc_create_data("aux_dump", 0, local->proc, 476 local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops, 477 local); 478 proc_create_data("bss_list", 0, local->proc, 479 &prism2_bss_list_proc_fops, local); 480 proc_create_data("crypt", 0, local->proc, 481 &prism2_crypt_proc_fops, local); 482 #ifdef PRISM2_IO_DEBUG 483 proc_create_data("io_debug", 0, local->proc, 484 &prism2_io_debug_proc_fops, local); 485 #endif /* PRISM2_IO_DEBUG */ 486 #ifndef PRISM2_NO_STATION_MODES 487 proc_create_data("scan_results", 0, local->proc, 488 &prism2_scan_results_proc_fops, local); 489 #endif /* PRISM2_NO_STATION_MODES */ 490 } 491 492 hostap_remove_proc(local_info_t * local)493 void hostap_remove_proc(local_info_t *local) 494 { 495 proc_remove(local->proc); 496 } 497 498 499 EXPORT_SYMBOL(hostap_init_proc); 500 EXPORT_SYMBOL(hostap_remove_proc); 501