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24#include <linux/module.h>
25#include <linux/moduleparam.h>
26#include <linux/kernel.h>
27#include <linux/errno.h>
28#include <linux/init.h>
29#include <linux/list.h>
30#include <linux/proc_fs.h>
31#include <linux/seq_file.h>
32#include <linux/netdevice.h>
33
34#include <asm/io.h>
35#include <asm/byteorder.h>
36#include <asm/system.h>
37#include <asm/unaligned.h>
38
39
40#undef VERBOSE_DEBUG
41
42#include "rndis.h"
43
44
45
46
47
48
49
50
51
52#if 0
53static int rndis_debug = 0;
54module_param (rndis_debug, int, 0);
55MODULE_PARM_DESC (rndis_debug, "enable debugging");
56#else
57#define rndis_debug 0
58#endif
59
60#define RNDIS_MAX_CONFIGS 1
61
62
63static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
64
65
66static const __le32 rndis_driver_version = cpu_to_le32 (1);
67
68
69static rndis_resp_t *rndis_add_response (int configNr, u32 length);
70
71
72
73static const u32 oid_supported_list [] =
74{
75
76 OID_GEN_SUPPORTED_LIST,
77 OID_GEN_HARDWARE_STATUS,
78 OID_GEN_MEDIA_SUPPORTED,
79 OID_GEN_MEDIA_IN_USE,
80 OID_GEN_MAXIMUM_FRAME_SIZE,
81 OID_GEN_LINK_SPEED,
82 OID_GEN_TRANSMIT_BLOCK_SIZE,
83 OID_GEN_RECEIVE_BLOCK_SIZE,
84 OID_GEN_VENDOR_ID,
85 OID_GEN_VENDOR_DESCRIPTION,
86 OID_GEN_VENDOR_DRIVER_VERSION,
87 OID_GEN_CURRENT_PACKET_FILTER,
88 OID_GEN_MAXIMUM_TOTAL_SIZE,
89 OID_GEN_MEDIA_CONNECT_STATUS,
90 OID_GEN_PHYSICAL_MEDIUM,
91
92
93 OID_GEN_XMIT_OK,
94 OID_GEN_RCV_OK,
95 OID_GEN_XMIT_ERROR,
96 OID_GEN_RCV_ERROR,
97 OID_GEN_RCV_NO_BUFFER,
98#ifdef RNDIS_OPTIONAL_STATS
99 OID_GEN_DIRECTED_BYTES_XMIT,
100 OID_GEN_DIRECTED_FRAMES_XMIT,
101 OID_GEN_MULTICAST_BYTES_XMIT,
102 OID_GEN_MULTICAST_FRAMES_XMIT,
103 OID_GEN_BROADCAST_BYTES_XMIT,
104 OID_GEN_BROADCAST_FRAMES_XMIT,
105 OID_GEN_DIRECTED_BYTES_RCV,
106 OID_GEN_DIRECTED_FRAMES_RCV,
107 OID_GEN_MULTICAST_BYTES_RCV,
108 OID_GEN_MULTICAST_FRAMES_RCV,
109 OID_GEN_BROADCAST_BYTES_RCV,
110 OID_GEN_BROADCAST_FRAMES_RCV,
111 OID_GEN_RCV_CRC_ERROR,
112 OID_GEN_TRANSMIT_QUEUE_LENGTH,
113#endif
114
115
116
117 OID_802_3_PERMANENT_ADDRESS,
118 OID_802_3_CURRENT_ADDRESS,
119 OID_802_3_MULTICAST_LIST,
120 OID_802_3_MAC_OPTIONS,
121 OID_802_3_MAXIMUM_LIST_SIZE,
122
123
124 OID_802_3_RCV_ERROR_ALIGNMENT,
125 OID_802_3_XMIT_ONE_COLLISION,
126 OID_802_3_XMIT_MORE_COLLISIONS,
127#ifdef RNDIS_OPTIONAL_STATS
128 OID_802_3_XMIT_DEFERRED,
129 OID_802_3_XMIT_MAX_COLLISIONS,
130 OID_802_3_RCV_OVERRUN,
131 OID_802_3_XMIT_UNDERRUN,
132 OID_802_3_XMIT_HEARTBEAT_FAILURE,
133 OID_802_3_XMIT_TIMES_CRS_LOST,
134 OID_802_3_XMIT_LATE_COLLISIONS,
135#endif
136
137#ifdef RNDIS_PM
138
139
140
141
142
143
144
145
146
147
148 OID_PNP_CAPABILITIES,
149 OID_PNP_QUERY_POWER,
150 OID_PNP_SET_POWER,
151
152#ifdef RNDIS_WAKEUP
153
154 OID_PNP_ENABLE_WAKE_UP,
155 OID_PNP_ADD_WAKE_UP_PATTERN,
156 OID_PNP_REMOVE_WAKE_UP_PATTERN,
157#endif
158#endif
159};
160
161
162
163static int
164gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
165 rndis_resp_t *r)
166{
167 int retval = -ENOTSUPP;
168 u32 length = 4;
169 __le32 *outbuf;
170 int i, count;
171 rndis_query_cmplt_type *resp;
172 struct net_device *net;
173 const struct net_device_stats *stats;
174
175 if (!r) return -ENOMEM;
176 resp = (rndis_query_cmplt_type *) r->buf;
177
178 if (!resp) return -ENOMEM;
179
180 if (buf_len && rndis_debug > 1) {
181 pr_debug("query OID %08x value, len %d:\n", OID, buf_len);
182 for (i = 0; i < buf_len; i += 16) {
183 pr_debug("%03d: %08x %08x %08x %08x\n", i,
184 get_unaligned_le32(&buf[i]),
185 get_unaligned_le32(&buf[i + 4]),
186 get_unaligned_le32(&buf[i + 8]),
187 get_unaligned_le32(&buf[i + 12]));
188 }
189 }
190
191
192 outbuf = (__le32 *) &resp[1];
193 resp->InformationBufferOffset = cpu_to_le32 (16);
194
195 net = rndis_per_dev_params[configNr].dev;
196 stats = dev_get_stats(net);
197
198 switch (OID) {
199
200
201
202
203 case OID_GEN_SUPPORTED_LIST:
204 pr_debug("%s: OID_GEN_SUPPORTED_LIST\n", __func__);
205 length = sizeof (oid_supported_list);
206 count = length / sizeof (u32);
207 for (i = 0; i < count; i++)
208 outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
209 retval = 0;
210 break;
211
212
213 case OID_GEN_HARDWARE_STATUS:
214 pr_debug("%s: OID_GEN_HARDWARE_STATUS\n", __func__);
215
216
217
218
219
220
221 *outbuf = cpu_to_le32 (0);
222 retval = 0;
223 break;
224
225
226 case OID_GEN_MEDIA_SUPPORTED:
227 pr_debug("%s: OID_GEN_MEDIA_SUPPORTED\n", __func__);
228 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
229 retval = 0;
230 break;
231
232
233 case OID_GEN_MEDIA_IN_USE:
234 pr_debug("%s: OID_GEN_MEDIA_IN_USE\n", __func__);
235
236 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
237 retval = 0;
238 break;
239
240
241 case OID_GEN_MAXIMUM_FRAME_SIZE:
242 pr_debug("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__);
243 if (rndis_per_dev_params [configNr].dev) {
244 *outbuf = cpu_to_le32 (
245 rndis_per_dev_params [configNr].dev->mtu);
246 retval = 0;
247 }
248 break;
249
250
251 case OID_GEN_LINK_SPEED:
252 if (rndis_debug > 1)
253 pr_debug("%s: OID_GEN_LINK_SPEED\n", __func__);
254 if (rndis_per_dev_params [configNr].media_state
255 == NDIS_MEDIA_STATE_DISCONNECTED)
256 *outbuf = cpu_to_le32 (0);
257 else
258 *outbuf = cpu_to_le32 (
259 rndis_per_dev_params [configNr].speed);
260 retval = 0;
261 break;
262
263
264 case OID_GEN_TRANSMIT_BLOCK_SIZE:
265 pr_debug("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__);
266 if (rndis_per_dev_params [configNr].dev) {
267 *outbuf = cpu_to_le32 (
268 rndis_per_dev_params [configNr].dev->mtu);
269 retval = 0;
270 }
271 break;
272
273
274 case OID_GEN_RECEIVE_BLOCK_SIZE:
275 pr_debug("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__);
276 if (rndis_per_dev_params [configNr].dev) {
277 *outbuf = cpu_to_le32 (
278 rndis_per_dev_params [configNr].dev->mtu);
279 retval = 0;
280 }
281 break;
282
283
284 case OID_GEN_VENDOR_ID:
285 pr_debug("%s: OID_GEN_VENDOR_ID\n", __func__);
286 *outbuf = cpu_to_le32 (
287 rndis_per_dev_params [configNr].vendorID);
288 retval = 0;
289 break;
290
291
292 case OID_GEN_VENDOR_DESCRIPTION:
293 pr_debug("%s: OID_GEN_VENDOR_DESCRIPTION\n", __func__);
294 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
295 memcpy (outbuf,
296 rndis_per_dev_params [configNr].vendorDescr, length);
297 retval = 0;
298 break;
299
300 case OID_GEN_VENDOR_DRIVER_VERSION:
301 pr_debug("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __func__);
302
303 *outbuf = rndis_driver_version;
304 retval = 0;
305 break;
306
307
308 case OID_GEN_CURRENT_PACKET_FILTER:
309 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __func__);
310 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
311 retval = 0;
312 break;
313
314
315 case OID_GEN_MAXIMUM_TOTAL_SIZE:
316 pr_debug("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__);
317 *outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
318 retval = 0;
319 break;
320
321
322 case OID_GEN_MEDIA_CONNECT_STATUS:
323 if (rndis_debug > 1)
324 pr_debug("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __func__);
325 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
326 .media_state);
327 retval = 0;
328 break;
329
330 case OID_GEN_PHYSICAL_MEDIUM:
331 pr_debug("%s: OID_GEN_PHYSICAL_MEDIUM\n", __func__);
332 *outbuf = cpu_to_le32 (0);
333 retval = 0;
334 break;
335
336
337
338
339
340 case OID_GEN_MAC_OPTIONS:
341 pr_debug("%s: OID_GEN_MAC_OPTIONS\n", __func__);
342 *outbuf = cpu_to_le32(
343 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
344 | NDIS_MAC_OPTION_FULL_DUPLEX);
345 retval = 0;
346 break;
347
348
349
350
351 case OID_GEN_XMIT_OK:
352 if (rndis_debug > 1)
353 pr_debug("%s: OID_GEN_XMIT_OK\n", __func__);
354 if (stats) {
355 *outbuf = cpu_to_le32(stats->tx_packets
356 - stats->tx_errors - stats->tx_dropped);
357 retval = 0;
358 }
359 break;
360
361
362 case OID_GEN_RCV_OK:
363 if (rndis_debug > 1)
364 pr_debug("%s: OID_GEN_RCV_OK\n", __func__);
365 if (stats) {
366 *outbuf = cpu_to_le32(stats->rx_packets
367 - stats->rx_errors - stats->rx_dropped);
368 retval = 0;
369 }
370 break;
371
372
373 case OID_GEN_XMIT_ERROR:
374 if (rndis_debug > 1)
375 pr_debug("%s: OID_GEN_XMIT_ERROR\n", __func__);
376 if (stats) {
377 *outbuf = cpu_to_le32(stats->tx_errors);
378 retval = 0;
379 }
380 break;
381
382
383 case OID_GEN_RCV_ERROR:
384 if (rndis_debug > 1)
385 pr_debug("%s: OID_GEN_RCV_ERROR\n", __func__);
386 if (stats) {
387 *outbuf = cpu_to_le32(stats->rx_errors);
388 retval = 0;
389 }
390 break;
391
392
393 case OID_GEN_RCV_NO_BUFFER:
394 pr_debug("%s: OID_GEN_RCV_NO_BUFFER\n", __func__);
395 if (stats) {
396 *outbuf = cpu_to_le32(stats->rx_dropped);
397 retval = 0;
398 }
399 break;
400
401
402
403
404 case OID_802_3_PERMANENT_ADDRESS:
405 pr_debug("%s: OID_802_3_PERMANENT_ADDRESS\n", __func__);
406 if (rndis_per_dev_params [configNr].dev) {
407 length = ETH_ALEN;
408 memcpy (outbuf,
409 rndis_per_dev_params [configNr].host_mac,
410 length);
411 retval = 0;
412 }
413 break;
414
415
416 case OID_802_3_CURRENT_ADDRESS:
417 pr_debug("%s: OID_802_3_CURRENT_ADDRESS\n", __func__);
418 if (rndis_per_dev_params [configNr].dev) {
419 length = ETH_ALEN;
420 memcpy (outbuf,
421 rndis_per_dev_params [configNr].host_mac,
422 length);
423 retval = 0;
424 }
425 break;
426
427
428 case OID_802_3_MULTICAST_LIST:
429 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
430
431 *outbuf = cpu_to_le32 (0xE0000000);
432 retval = 0;
433 break;
434
435
436 case OID_802_3_MAXIMUM_LIST_SIZE:
437 pr_debug("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __func__);
438
439 *outbuf = cpu_to_le32 (1);
440 retval = 0;
441 break;
442
443 case OID_802_3_MAC_OPTIONS:
444 pr_debug("%s: OID_802_3_MAC_OPTIONS\n", __func__);
445 *outbuf = cpu_to_le32(0);
446 retval = 0;
447 break;
448
449
450
451
452 case OID_802_3_RCV_ERROR_ALIGNMENT:
453 pr_debug("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__);
454 if (stats) {
455 *outbuf = cpu_to_le32(stats->rx_frame_errors);
456 retval = 0;
457 }
458 break;
459
460
461 case OID_802_3_XMIT_ONE_COLLISION:
462 pr_debug("%s: OID_802_3_XMIT_ONE_COLLISION\n", __func__);
463 *outbuf = cpu_to_le32 (0);
464 retval = 0;
465 break;
466
467
468 case OID_802_3_XMIT_MORE_COLLISIONS:
469 pr_debug("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __func__);
470 *outbuf = cpu_to_le32 (0);
471 retval = 0;
472 break;
473
474 default:
475 pr_warning("%s: query unknown OID 0x%08X\n",
476 __func__, OID);
477 }
478 if (retval < 0)
479 length = 0;
480
481 resp->InformationBufferLength = cpu_to_le32 (length);
482 r->length = length + sizeof *resp;
483 resp->MessageLength = cpu_to_le32 (r->length);
484 return retval;
485}
486
487static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
488 rndis_resp_t *r)
489{
490 rndis_set_cmplt_type *resp;
491 int i, retval = -ENOTSUPP;
492 struct rndis_params *params;
493
494 if (!r)
495 return -ENOMEM;
496 resp = (rndis_set_cmplt_type *) r->buf;
497 if (!resp)
498 return -ENOMEM;
499
500 if (buf_len && rndis_debug > 1) {
501 pr_debug("set OID %08x value, len %d:\n", OID, buf_len);
502 for (i = 0; i < buf_len; i += 16) {
503 pr_debug("%03d: %08x %08x %08x %08x\n", i,
504 get_unaligned_le32(&buf[i]),
505 get_unaligned_le32(&buf[i + 4]),
506 get_unaligned_le32(&buf[i + 8]),
507 get_unaligned_le32(&buf[i + 12]));
508 }
509 }
510
511 params = &rndis_per_dev_params [configNr];
512 switch (OID) {
513 case OID_GEN_CURRENT_PACKET_FILTER:
514
515
516
517
518
519
520
521 *params->filter = (u16)get_unaligned_le32(buf);
522 pr_debug("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
523 __func__, *params->filter);
524
525
526
527
528
529 retval = 0;
530 if (*params->filter) {
531 params->state = RNDIS_DATA_INITIALIZED;
532 netif_carrier_on(params->dev);
533 if (netif_running(params->dev))
534 netif_wake_queue (params->dev);
535 } else {
536 params->state = RNDIS_INITIALIZED;
537 netif_carrier_off (params->dev);
538 netif_stop_queue (params->dev);
539 }
540 break;
541
542 case OID_802_3_MULTICAST_LIST:
543
544 pr_debug("%s: OID_802_3_MULTICAST_LIST\n", __func__);
545 retval = 0;
546 break;
547
548 default:
549 pr_warning("%s: set unknown OID 0x%08X, size %d\n",
550 __func__, OID, buf_len);
551 }
552
553 return retval;
554}
555
556
557
558
559
560static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
561{
562 rndis_init_cmplt_type *resp;
563 rndis_resp_t *r;
564 struct rndis_params *params = rndis_per_dev_params + configNr;
565
566 if (!params->dev)
567 return -ENOTSUPP;
568
569 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
570 if (!r)
571 return -ENOMEM;
572 resp = (rndis_init_cmplt_type *) r->buf;
573
574 resp->MessageType = cpu_to_le32 (
575 REMOTE_NDIS_INITIALIZE_CMPLT);
576 resp->MessageLength = cpu_to_le32 (52);
577 resp->RequestID = buf->RequestID;
578 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
579 resp->MajorVersion = cpu_to_le32 (RNDIS_MAJOR_VERSION);
580 resp->MinorVersion = cpu_to_le32 (RNDIS_MINOR_VERSION);
581 resp->DeviceFlags = cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
582 resp->Medium = cpu_to_le32 (RNDIS_MEDIUM_802_3);
583 resp->MaxPacketsPerTransfer = cpu_to_le32 (1);
584 resp->MaxTransferSize = cpu_to_le32 (
585 params->dev->mtu
586 + sizeof (struct ethhdr)
587 + sizeof (struct rndis_packet_msg_type)
588 + 22);
589 resp->PacketAlignmentFactor = cpu_to_le32 (0);
590 resp->AFListOffset = cpu_to_le32 (0);
591 resp->AFListSize = cpu_to_le32 (0);
592
593 params->resp_avail(params->v);
594 return 0;
595}
596
597static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
598{
599 rndis_query_cmplt_type *resp;
600 rndis_resp_t *r;
601 struct rndis_params *params = rndis_per_dev_params + configNr;
602
603
604 if (!params->dev)
605 return -ENOTSUPP;
606
607
608
609
610
611
612
613 r = rndis_add_response (configNr,
614 sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
615 if (!r)
616 return -ENOMEM;
617 resp = (rndis_query_cmplt_type *) r->buf;
618
619 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
620 resp->RequestID = buf->RequestID;
621
622 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
623 le32_to_cpu(buf->InformationBufferOffset)
624 + 8 + (u8 *) buf,
625 le32_to_cpu(buf->InformationBufferLength),
626 r)) {
627
628 resp->Status = cpu_to_le32 (
629 RNDIS_STATUS_NOT_SUPPORTED);
630 resp->MessageLength = cpu_to_le32 (sizeof *resp);
631 resp->InformationBufferLength = cpu_to_le32 (0);
632 resp->InformationBufferOffset = cpu_to_le32 (0);
633 } else
634 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
635
636 params->resp_avail(params->v);
637 return 0;
638}
639
640static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
641{
642 u32 BufLength, BufOffset;
643 rndis_set_cmplt_type *resp;
644 rndis_resp_t *r;
645 struct rndis_params *params = rndis_per_dev_params + configNr;
646
647 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
648 if (!r)
649 return -ENOMEM;
650 resp = (rndis_set_cmplt_type *) r->buf;
651
652 BufLength = le32_to_cpu (buf->InformationBufferLength);
653 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
654
655#ifdef VERBOSE_DEBUG
656 pr_debug("%s: Length: %d\n", __func__, BufLength);
657 pr_debug("%s: Offset: %d\n", __func__, BufOffset);
658 pr_debug("%s: InfoBuffer: ", __func__);
659
660 for (i = 0; i < BufLength; i++) {
661 pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
662 }
663
664 pr_debug("\n");
665#endif
666
667 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
668 resp->MessageLength = cpu_to_le32 (16);
669 resp->RequestID = buf->RequestID;
670 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
671 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
672 resp->Status = cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
673 else
674 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
675
676 params->resp_avail(params->v);
677 return 0;
678}
679
680static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
681{
682 rndis_reset_cmplt_type *resp;
683 rndis_resp_t *r;
684 struct rndis_params *params = rndis_per_dev_params + configNr;
685
686 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
687 if (!r)
688 return -ENOMEM;
689 resp = (rndis_reset_cmplt_type *) r->buf;
690
691 resp->MessageType = cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
692 resp->MessageLength = cpu_to_le32 (16);
693 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
694
695 resp->AddressingReset = cpu_to_le32 (1);
696
697 params->resp_avail(params->v);
698 return 0;
699}
700
701static int rndis_keepalive_response (int configNr,
702 rndis_keepalive_msg_type *buf)
703{
704 rndis_keepalive_cmplt_type *resp;
705 rndis_resp_t *r;
706 struct rndis_params *params = rndis_per_dev_params + configNr;
707
708
709
710 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
711 if (!r)
712 return -ENOMEM;
713 resp = (rndis_keepalive_cmplt_type *) r->buf;
714
715 resp->MessageType = cpu_to_le32 (
716 REMOTE_NDIS_KEEPALIVE_CMPLT);
717 resp->MessageLength = cpu_to_le32 (16);
718 resp->RequestID = buf->RequestID;
719 resp->Status = cpu_to_le32 (RNDIS_STATUS_SUCCESS);
720
721 params->resp_avail(params->v);
722 return 0;
723}
724
725
726
727
728
729static int rndis_indicate_status_msg (int configNr, u32 status)
730{
731 rndis_indicate_status_msg_type *resp;
732 rndis_resp_t *r;
733 struct rndis_params *params = rndis_per_dev_params + configNr;
734
735 if (params->state == RNDIS_UNINITIALIZED)
736 return -ENOTSUPP;
737
738 r = rndis_add_response (configNr,
739 sizeof (rndis_indicate_status_msg_type));
740 if (!r)
741 return -ENOMEM;
742 resp = (rndis_indicate_status_msg_type *) r->buf;
743
744 resp->MessageType = cpu_to_le32 (
745 REMOTE_NDIS_INDICATE_STATUS_MSG);
746 resp->MessageLength = cpu_to_le32 (20);
747 resp->Status = cpu_to_le32 (status);
748 resp->StatusBufferLength = cpu_to_le32 (0);
749 resp->StatusBufferOffset = cpu_to_le32 (0);
750
751 params->resp_avail(params->v);
752 return 0;
753}
754
755int rndis_signal_connect (int configNr)
756{
757 rndis_per_dev_params [configNr].media_state
758 = NDIS_MEDIA_STATE_CONNECTED;
759 return rndis_indicate_status_msg (configNr,
760 RNDIS_STATUS_MEDIA_CONNECT);
761}
762
763int rndis_signal_disconnect (int configNr)
764{
765 rndis_per_dev_params [configNr].media_state
766 = NDIS_MEDIA_STATE_DISCONNECTED;
767 return rndis_indicate_status_msg (configNr,
768 RNDIS_STATUS_MEDIA_DISCONNECT);
769}
770
771void rndis_uninit (int configNr)
772{
773 u8 *buf;
774 u32 length;
775
776 if (configNr >= RNDIS_MAX_CONFIGS)
777 return;
778 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
779
780
781 while ((buf = rndis_get_next_response(configNr, &length)))
782 rndis_free_response(configNr, buf);
783}
784
785void rndis_set_host_mac (int configNr, const u8 *addr)
786{
787 rndis_per_dev_params [configNr].host_mac = addr;
788}
789
790
791
792
793int rndis_msg_parser (u8 configNr, u8 *buf)
794{
795 u32 MsgType, MsgLength;
796 __le32 *tmp;
797 struct rndis_params *params;
798
799 if (!buf)
800 return -ENOMEM;
801
802 tmp = (__le32 *) buf;
803 MsgType = get_unaligned_le32(tmp++);
804 MsgLength = get_unaligned_le32(tmp++);
805
806 if (configNr >= RNDIS_MAX_CONFIGS)
807 return -ENOTSUPP;
808 params = &rndis_per_dev_params [configNr];
809
810
811
812
813
814
815
816 switch (MsgType) {
817 case REMOTE_NDIS_INITIALIZE_MSG:
818 pr_debug("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
819 __func__ );
820 params->state = RNDIS_INITIALIZED;
821 return rndis_init_response (configNr,
822 (rndis_init_msg_type *) buf);
823
824 case REMOTE_NDIS_HALT_MSG:
825 pr_debug("%s: REMOTE_NDIS_HALT_MSG\n",
826 __func__ );
827 params->state = RNDIS_UNINITIALIZED;
828 if (params->dev) {
829 netif_carrier_off (params->dev);
830 netif_stop_queue (params->dev);
831 }
832 return 0;
833
834 case REMOTE_NDIS_QUERY_MSG:
835 return rndis_query_response (configNr,
836 (rndis_query_msg_type *) buf);
837
838 case REMOTE_NDIS_SET_MSG:
839 return rndis_set_response (configNr,
840 (rndis_set_msg_type *) buf);
841
842 case REMOTE_NDIS_RESET_MSG:
843 pr_debug("%s: REMOTE_NDIS_RESET_MSG\n",
844 __func__ );
845 return rndis_reset_response (configNr,
846 (rndis_reset_msg_type *) buf);
847
848 case REMOTE_NDIS_KEEPALIVE_MSG:
849
850 if (rndis_debug > 1)
851 pr_debug("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
852 __func__ );
853 return rndis_keepalive_response (configNr,
854 (rndis_keepalive_msg_type *)
855 buf);
856
857 default:
858
859
860
861
862 pr_warning("%s: unknown RNDIS message 0x%08X len %d\n",
863 __func__ , MsgType, MsgLength);
864 {
865 unsigned i;
866 for (i = 0; i < MsgLength; i += 16) {
867 pr_debug("%03d: "
868 " %02x %02x %02x %02x"
869 " %02x %02x %02x %02x"
870 " %02x %02x %02x %02x"
871 " %02x %02x %02x %02x"
872 "\n",
873 i,
874 buf[i], buf [i+1],
875 buf[i+2], buf[i+3],
876 buf[i+4], buf [i+5],
877 buf[i+6], buf[i+7],
878 buf[i+8], buf [i+9],
879 buf[i+10], buf[i+11],
880 buf[i+12], buf [i+13],
881 buf[i+14], buf[i+15]);
882 }
883 }
884 break;
885 }
886
887 return -ENOTSUPP;
888}
889
890int rndis_register(void (*resp_avail)(void *v), void *v)
891{
892 u8 i;
893
894 if (!resp_avail)
895 return -EINVAL;
896
897 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
898 if (!rndis_per_dev_params [i].used) {
899 rndis_per_dev_params [i].used = 1;
900 rndis_per_dev_params [i].resp_avail = resp_avail;
901 rndis_per_dev_params [i].v = v;
902 pr_debug("%s: configNr = %d\n", __func__, i);
903 return i;
904 }
905 }
906 pr_debug("failed\n");
907
908 return -ENODEV;
909}
910
911void rndis_deregister (int configNr)
912{
913 pr_debug("%s: \n", __func__);
914
915 if (configNr >= RNDIS_MAX_CONFIGS) return;
916 rndis_per_dev_params [configNr].used = 0;
917
918 return;
919}
920
921int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter)
922{
923 pr_debug("%s:\n", __func__);
924 if (!dev)
925 return -EINVAL;
926 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
927
928 rndis_per_dev_params [configNr].dev = dev;
929 rndis_per_dev_params [configNr].filter = cdc_filter;
930
931 return 0;
932}
933
934int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
935{
936 pr_debug("%s:\n", __func__);
937 if (!vendorDescr) return -1;
938 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
939
940 rndis_per_dev_params [configNr].vendorID = vendorID;
941 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
942
943 return 0;
944}
945
946int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
947{
948 pr_debug("%s: %u %u\n", __func__, medium, speed);
949 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
950
951 rndis_per_dev_params [configNr].medium = medium;
952 rndis_per_dev_params [configNr].speed = speed;
953
954 return 0;
955}
956
957void rndis_add_hdr (struct sk_buff *skb)
958{
959 struct rndis_packet_msg_type *header;
960
961 if (!skb)
962 return;
963 header = (void *) skb_push (skb, sizeof *header);
964 memset (header, 0, sizeof *header);
965 header->MessageType = cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
966 header->MessageLength = cpu_to_le32(skb->len);
967 header->DataOffset = cpu_to_le32 (36);
968 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
969}
970
971void rndis_free_response (int configNr, u8 *buf)
972{
973 rndis_resp_t *r;
974 struct list_head *act, *tmp;
975
976 list_for_each_safe (act, tmp,
977 &(rndis_per_dev_params [configNr].resp_queue))
978 {
979 r = list_entry (act, rndis_resp_t, list);
980 if (r && r->buf == buf) {
981 list_del (&r->list);
982 kfree (r);
983 }
984 }
985}
986
987u8 *rndis_get_next_response (int configNr, u32 *length)
988{
989 rndis_resp_t *r;
990 struct list_head *act, *tmp;
991
992 if (!length) return NULL;
993
994 list_for_each_safe (act, tmp,
995 &(rndis_per_dev_params [configNr].resp_queue))
996 {
997 r = list_entry (act, rndis_resp_t, list);
998 if (!r->send) {
999 r->send = 1;
1000 *length = r->length;
1001 return r->buf;
1002 }
1003 }
1004
1005 return NULL;
1006}
1007
1008static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1009{
1010 rndis_resp_t *r;
1011
1012
1013 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1014 if (!r) return NULL;
1015
1016 r->buf = (u8 *) (r + 1);
1017 r->length = length;
1018 r->send = 0;
1019
1020 list_add_tail (&r->list,
1021 &(rndis_per_dev_params [configNr].resp_queue));
1022 return r;
1023}
1024
1025int rndis_rm_hdr(struct gether *port,
1026 struct sk_buff *skb,
1027 struct sk_buff_head *list)
1028{
1029
1030 __le32 *tmp = (void *) skb->data;
1031
1032
1033 if (cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1034 != get_unaligned(tmp++)) {
1035 dev_kfree_skb_any(skb);
1036 return -EINVAL;
1037 }
1038 tmp++;
1039
1040
1041 if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) {
1042 dev_kfree_skb_any(skb);
1043 return -EOVERFLOW;
1044 }
1045 skb_trim(skb, get_unaligned_le32(tmp++));
1046
1047 skb_queue_tail(list, skb);
1048 return 0;
1049}
1050
1051#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1052
1053static int rndis_proc_show(struct seq_file *m, void *v)
1054{
1055 rndis_params *param = m->private;
1056
1057 seq_printf(m,
1058 "Config Nr. %d\n"
1059 "used : %s\n"
1060 "state : %s\n"
1061 "medium : 0x%08X\n"
1062 "speed : %d\n"
1063 "cable : %s\n"
1064 "vendor ID : 0x%08X\n"
1065 "vendor : %s\n",
1066 param->confignr, (param->used) ? "y" : "n",
1067 ({ char *s = "?";
1068 switch (param->state) {
1069 case RNDIS_UNINITIALIZED:
1070 s = "RNDIS_UNINITIALIZED"; break;
1071 case RNDIS_INITIALIZED:
1072 s = "RNDIS_INITIALIZED"; break;
1073 case RNDIS_DATA_INITIALIZED:
1074 s = "RNDIS_DATA_INITIALIZED"; break;
1075 }; s; }),
1076 param->medium,
1077 (param->media_state) ? 0 : param->speed*100,
1078 (param->media_state) ? "disconnected" : "connected",
1079 param->vendorID, param->vendorDescr);
1080 return 0;
1081}
1082
1083static ssize_t rndis_proc_write(struct file *file, const char __user *buffer,
1084 size_t count, loff_t *ppos)
1085{
1086 rndis_params *p = PDE(file->f_path.dentry->d_inode)->data;
1087 u32 speed = 0;
1088 int i, fl_speed = 0;
1089
1090 for (i = 0; i < count; i++) {
1091 char c;
1092 if (get_user(c, buffer))
1093 return -EFAULT;
1094 switch (c) {
1095 case '0':
1096 case '1':
1097 case '2':
1098 case '3':
1099 case '4':
1100 case '5':
1101 case '6':
1102 case '7':
1103 case '8':
1104 case '9':
1105 fl_speed = 1;
1106 speed = speed*10 + c - '0';
1107 break;
1108 case 'C':
1109 case 'c':
1110 rndis_signal_connect (p->confignr);
1111 break;
1112 case 'D':
1113 case 'd':
1114 rndis_signal_disconnect(p->confignr);
1115 break;
1116 default:
1117 if (fl_speed) p->speed = speed;
1118 else pr_debug("%c is not valid\n", c);
1119 break;
1120 }
1121
1122 buffer++;
1123 }
1124
1125 return count;
1126}
1127
1128static int rndis_proc_open(struct inode *inode, struct file *file)
1129{
1130 return single_open(file, rndis_proc_show, PDE(inode)->data);
1131}
1132
1133static const struct file_operations rndis_proc_fops = {
1134 .owner = THIS_MODULE,
1135 .open = rndis_proc_open,
1136 .read = seq_read,
1137 .llseek = seq_lseek,
1138 .release = single_release,
1139 .write = rndis_proc_write,
1140};
1141
1142#define NAME_TEMPLATE "driver/rndis-%03d"
1143
1144static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1145
1146#endif
1147
1148
1149int __init rndis_init (void)
1150{
1151 u8 i;
1152
1153 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1154#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1155 char name [20];
1156
1157 sprintf (name, NAME_TEMPLATE, i);
1158 if (!(rndis_connect_state [i]
1159 = proc_create_data(name, 0660, NULL,
1160 &rndis_proc_fops,
1161 (void *)(rndis_per_dev_params + i))))
1162 {
1163 pr_debug("%s :remove entries", __func__);
1164 while (i) {
1165 sprintf (name, NAME_TEMPLATE, --i);
1166 remove_proc_entry (name, NULL);
1167 }
1168 pr_debug("\n");
1169 return -EIO;
1170 }
1171#endif
1172 rndis_per_dev_params [i].confignr = i;
1173 rndis_per_dev_params [i].used = 0;
1174 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1175 rndis_per_dev_params [i].media_state
1176 = NDIS_MEDIA_STATE_DISCONNECTED;
1177 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1178 }
1179
1180 return 0;
1181}
1182
1183void rndis_exit (void)
1184{
1185#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1186 u8 i;
1187 char name [20];
1188
1189 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1190 sprintf (name, NAME_TEMPLATE, i);
1191 remove_proc_entry (name, NULL);
1192 }
1193#endif
1194}
1195
1196
