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[PATCH] Make reiserfs BUG on too big transaction
[linux-2.6.git] / drivers / usb / gadget / rndis.c
blob7457268d5f282b9e9d1d6217857db70e0ecaefc9
1 /*
2 * RNDIS MSG parser
3 *
4 * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
5 *
6 * Authors: Benedikt Spranger, Pengutronix
7 * Robert Schwebel, Pengutronix
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2, as published by the Free Software Foundation.
12 *
13 * This software was originally developed in conformance with
14 * Microsoft's Remote NDIS Specification License Agreement.
15 *
16 * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
17 * Fixed message length bug in init_response
18 *
19 * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
20 * Fixed rndis_rm_hdr length bug.
21 *
22 * Copyright (C) 2004 by David Brownell
23 * updates to merge with Linux 2.6, better match RNDIS spec
24 */
25
26 #include <linux/config.h>
27 #include <linux/module.h>
28 #include <linux/moduleparam.h>
29 #include <linux/kernel.h>
30 #include <linux/errno.h>
31 #include <linux/version.h>
32 #include <linux/init.h>
33 #include <linux/list.h>
34 #include <linux/proc_fs.h>
35 #include <linux/netdevice.h>
36
37 #include <asm/io.h>
38 #include <asm/byteorder.h>
39 #include <asm/system.h>
40 #include <asm/unaligned.h>
41
42
43 #undef RNDIS_PM
44 #undef VERBOSE
45
46 #include "rndis.h"
47
48
49 /* The driver for your USB chip needs to support ep0 OUT to work with
50 * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
51 *
52 * Windows hosts need an INF file like Documentation/usb/linux.inf
53 * and will be happier if you provide the host_addr module parameter.
54 */
55
56 #if 0
57 #define DEBUG(str,args...) do { \
58 if (rndis_debug) \
59 printk(KERN_DEBUG str , ## args ); \
60 } while (0)
61 static int rndis_debug = 0;
62
63 module_param (rndis_debug, bool, 0);
64 MODULE_PARM_DESC (rndis_debug, "enable debugging");
65
66 #else
67
68 #define rndis_debug 0
69 #define DEBUG(str,args...) do{}while(0)
70 #endif
71
72 #define RNDIS_MAX_CONFIGS 1
73
74
75 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
76
77 /* Driver Version */
78 static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
79
80 /* Function Prototypes */
81 static int rndis_init_response (int configNr, rndis_init_msg_type *buf);
82 static int rndis_query_response (int configNr, rndis_query_msg_type *buf);
83 static int rndis_set_response (int configNr, rndis_set_msg_type *buf);
84 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf);
85 static int rndis_keepalive_response (int configNr,
86 rndis_keepalive_msg_type *buf);
87
88 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
89
90
91 /* NDIS Functions */
92 static int gen_ndis_query_resp (int configNr, u32 OID, rndis_resp_t *r)
93 {
94 int retval = -ENOTSUPP;
95 u32 length = 0;
96 __le32 *tmp;
97 int i, count;
98 rndis_query_cmplt_type *resp;
99
100 if (!r) return -ENOMEM;
101 resp = (rndis_query_cmplt_type *) r->buf;
102
103 if (!resp) return -ENOMEM;
104
105 switch (OID) {
106
107 /* general oids (table 4-1) */
108
109 /* mandatory */
110 case OID_GEN_SUPPORTED_LIST:
111 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
112 length = sizeof (oid_supported_list);
113 count = length / sizeof (u32);
114 tmp = (__le32 *) ((u8 *)resp + 24);
115 for (i = 0; i < count; i++)
116 tmp[i] = cpu_to_le32 (oid_supported_list[i]);
117 retval = 0;
118 break;
119
120 /* mandatory */
121 case OID_GEN_HARDWARE_STATUS:
122 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
123 length = 4;
124 /* Bogus question!
125 * Hardware must be ready to receive high level protocols.
126 * BTW:
127 * reddite ergo quae sunt Caesaris Caesari
128 * et quae sunt Dei Deo!
129 */
130 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
131 retval = 0;
132 break;
133
134 /* mandatory */
135 case OID_GEN_MEDIA_SUPPORTED:
136 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
137 length = 4;
138 *((__le32 *) resp + 6) = cpu_to_le32 (
139 rndis_per_dev_params [configNr].medium);
140 retval = 0;
141 break;
142
143 /* mandatory */
144 case OID_GEN_MEDIA_IN_USE:
145 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
146 length = 4;
147 /* one medium, one transport... (maybe you do it better) */
148 *((__le32 *) resp + 6) = cpu_to_le32 (
149 rndis_per_dev_params [configNr].medium);
150 retval = 0;
151 break;
152
153 /* mandatory */
154 case OID_GEN_MAXIMUM_FRAME_SIZE:
155 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
156 if (rndis_per_dev_params [configNr].dev) {
157 length = 4;
158 *((__le32 *) resp + 6) = cpu_to_le32 (
159 rndis_per_dev_params [configNr].dev->mtu);
160 retval = 0;
161 } else {
162 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
163 retval = 0;
164 }
165 break;
166
167 /* mandatory */
168 case OID_GEN_LINK_SPEED:
169 // DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
170 length = 4;
171 if (rndis_per_dev_params [configNr].media_state
172 == NDIS_MEDIA_STATE_DISCONNECTED)
173 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
174 else
175 *((__le32 *) resp + 6) = cpu_to_le32 (
176 rndis_per_dev_params [configNr].speed);
177 retval = 0;
178 break;
179
180 /* mandatory */
181 case OID_GEN_TRANSMIT_BLOCK_SIZE:
182 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
183 if (rndis_per_dev_params [configNr].dev) {
184 length = 4;
185 *((__le32 *) resp + 6) = cpu_to_le32 (
186 rndis_per_dev_params [configNr].dev->mtu);
187 retval = 0;
188 }
189 break;
190
191 /* mandatory */
192 case OID_GEN_RECEIVE_BLOCK_SIZE:
193 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
194 if (rndis_per_dev_params [configNr].dev) {
195 length = 4;
196 *((__le32 *) resp + 6) = cpu_to_le32 (
197 rndis_per_dev_params [configNr].dev->mtu);
198 retval = 0;
199 }
200 break;
201
202 /* mandatory */
203 case OID_GEN_VENDOR_ID:
204 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
205 length = 4;
206 *((__le32 *) resp + 6) = cpu_to_le32 (
207 rndis_per_dev_params [configNr].vendorID);
208 retval = 0;
209 break;
210
211 /* mandatory */
212 case OID_GEN_VENDOR_DESCRIPTION:
213 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
214 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
215 memcpy ((u8 *) resp + 24,
216 rndis_per_dev_params [configNr].vendorDescr, length);
217 retval = 0;
218 break;
219
220 case OID_GEN_VENDOR_DRIVER_VERSION:
221 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
222 length = 4;
223 /* Created as LE */
224 *((__le32 *) resp + 6) = rndis_driver_version;
225 retval = 0;
226 break;
227
228 /* mandatory */
229 case OID_GEN_CURRENT_PACKET_FILTER:
230 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
231 length = 4;
232 *((__le32 *) resp + 6) = cpu_to_le32 (
233 rndis_per_dev_params[configNr].filter);
234 retval = 0;
235 break;
236
237 /* mandatory */
238 case OID_GEN_MAXIMUM_TOTAL_SIZE:
239 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
240 length = 4;
241 *((__le32 *) resp + 6) = __constant_cpu_to_le32(
242 RNDIS_MAX_TOTAL_SIZE);
243 retval = 0;
244 break;
245
246 /* mandatory */
247 case OID_GEN_MEDIA_CONNECT_STATUS:
248 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
249 length = 4;
250 *((__le32 *) resp + 6) = cpu_to_le32 (
251 rndis_per_dev_params [configNr]
252 .media_state);
253 retval = 0;
254 break;
255
256 case OID_GEN_PHYSICAL_MEDIUM:
257 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
258 length = 4;
259 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
260 retval = 0;
261 break;
262
263 /* The RNDIS specification is incomplete/wrong. Some versions
264 * of MS-Windows expect OIDs that aren't specified there. Other
265 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
266 */
267 case OID_GEN_MAC_OPTIONS: /* from WinME */
268 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
269 length = 4;
270 *((__le32 *) resp + 6) = __constant_cpu_to_le32(
271 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
272 | NDIS_MAC_OPTION_FULL_DUPLEX);
273 retval = 0;
274 break;
275
276 /* statistics OIDs (table 4-2) */
277
278 /* mandatory */
279 case OID_GEN_XMIT_OK:
280 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
281 if (rndis_per_dev_params [configNr].stats) {
282 length = 4;
283 *((__le32 *) resp + 6) = cpu_to_le32 (
284 rndis_per_dev_params [configNr].stats->tx_packets -
285 rndis_per_dev_params [configNr].stats->tx_errors -
286 rndis_per_dev_params [configNr].stats->tx_dropped);
287 retval = 0;
288 } else {
289 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
290 retval = 0;
291 }
292 break;
293
294 /* mandatory */
295 case OID_GEN_RCV_OK:
296 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
297 if (rndis_per_dev_params [configNr].stats) {
298 length = 4;
299 *((__le32 *) resp + 6) = cpu_to_le32 (
300 rndis_per_dev_params [configNr].stats->rx_packets -
301 rndis_per_dev_params [configNr].stats->rx_errors -
302 rndis_per_dev_params [configNr].stats->rx_dropped);
303 retval = 0;
304 } else {
305 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
306 retval = 0;
307 }
308 break;
309
310 /* mandatory */
311 case OID_GEN_XMIT_ERROR:
312 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
313 if (rndis_per_dev_params [configNr].stats) {
314 length = 4;
315 *((__le32 *) resp + 6) = cpu_to_le32 (
316 rndis_per_dev_params [configNr]
317 .stats->tx_errors);
318 retval = 0;
319 } else {
320 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
321 retval = 0;
322 }
323 break;
324
325 /* mandatory */
326 case OID_GEN_RCV_ERROR:
327 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
328 if (rndis_per_dev_params [configNr].stats) {
329 *((__le32 *) resp + 6) = cpu_to_le32 (
330 rndis_per_dev_params [configNr]
331 .stats->rx_errors);
332 retval = 0;
333 } else {
334 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
335 retval = 0;
336 }
337 break;
338
339 /* mandatory */
340 case OID_GEN_RCV_NO_BUFFER:
341 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
342 if (rndis_per_dev_params [configNr].stats) {
343 *((__le32 *) resp + 6) = cpu_to_le32 (
344 rndis_per_dev_params [configNr]
345 .stats->rx_dropped);
346 retval = 0;
347 } else {
348 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
349 retval = 0;
350 }
351 break;
352
353 #ifdef RNDIS_OPTIONAL_STATS
354 case OID_GEN_DIRECTED_BYTES_XMIT:
355 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
356 /*
357 * Aunt Tilly's size of shoes
358 * minus antarctica count of penguins
359 * divided by weight of Alpha Centauri
360 */
361 if (rndis_per_dev_params [configNr].stats) {
362 length = 4;
363 *((__le32 *) resp + 6) = cpu_to_le32 (
364 (rndis_per_dev_params [configNr]
365 .stats->tx_packets -
366 rndis_per_dev_params [configNr]
367 .stats->tx_errors -
368 rndis_per_dev_params [configNr]
369 .stats->tx_dropped)
370 * 123);
371 retval = 0;
372 } else {
373 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
374 retval = 0;
375 }
376 break;
377
378 case OID_GEN_DIRECTED_FRAMES_XMIT:
379 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
380 /* dito */
381 if (rndis_per_dev_params [configNr].stats) {
382 length = 4;
383 *((__le32 *) resp + 6) = cpu_to_le32 (
384 (rndis_per_dev_params [configNr]
385 .stats->tx_packets -
386 rndis_per_dev_params [configNr]
387 .stats->tx_errors -
388 rndis_per_dev_params [configNr]
389 .stats->tx_dropped)
390 / 123);
391 retval = 0;
392 } else {
393 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
394 retval = 0;
395 }
396 break;
397
398 case OID_GEN_MULTICAST_BYTES_XMIT:
399 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
400 if (rndis_per_dev_params [configNr].stats) {
401 *((__le32 *) resp + 6) = cpu_to_le32 (
402 rndis_per_dev_params [configNr]
403 .stats->multicast*1234);
404 retval = 0;
405 } else {
406 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
407 retval = 0;
408 }
409 break;
410
411 case OID_GEN_MULTICAST_FRAMES_XMIT:
412 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
413 if (rndis_per_dev_params [configNr].stats) {
414 *((__le32 *) resp + 6) = cpu_to_le32 (
415 rndis_per_dev_params [configNr]
416 .stats->multicast);
417 retval = 0;
418 } else {
419 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
420 retval = 0;
421 }
422 break;
423
424 case OID_GEN_BROADCAST_BYTES_XMIT:
425 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
426 if (rndis_per_dev_params [configNr].stats) {
427 *((__le32 *) resp + 6) = cpu_to_le32 (
428 rndis_per_dev_params [configNr]
429 .stats->tx_packets/42*255);
430 retval = 0;
431 } else {
432 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
433 retval = 0;
434 }
435 break;
436
437 case OID_GEN_BROADCAST_FRAMES_XMIT:
438 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
439 if (rndis_per_dev_params [configNr].stats) {
440 *((__le32 *) resp + 6) = cpu_to_le32 (
441 rndis_per_dev_params [configNr]
442 .stats->tx_packets/42);
443 retval = 0;
444 } else {
445 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
446 retval = 0;
447 }
448 break;
449
450 case OID_GEN_DIRECTED_BYTES_RCV:
451 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
452 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
453 retval = 0;
454 break;
455
456 case OID_GEN_DIRECTED_FRAMES_RCV:
457 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
458 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
459 retval = 0;
460 break;
461
462 case OID_GEN_MULTICAST_BYTES_RCV:
463 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
464 if (rndis_per_dev_params [configNr].stats) {
465 *((__le32 *) resp + 6) = cpu_to_le32 (
466 rndis_per_dev_params [configNr]
467 .stats->multicast * 1111);
468 retval = 0;
469 } else {
470 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
471 retval = 0;
472 }
473 break;
474
475 case OID_GEN_MULTICAST_FRAMES_RCV:
476 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
477 if (rndis_per_dev_params [configNr].stats) {
478 *((__le32 *) resp + 6) = cpu_to_le32 (
479 rndis_per_dev_params [configNr]
480 .stats->multicast);
481 retval = 0;
482 } else {
483 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
484 retval = 0;
485 }
486 break;
487
488 case OID_GEN_BROADCAST_BYTES_RCV:
489 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
490 if (rndis_per_dev_params [configNr].stats) {
491 *((__le32 *) resp + 6) = cpu_to_le32 (
492 rndis_per_dev_params [configNr]
493 .stats->rx_packets/42*255);
494 retval = 0;
495 } else {
496 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
497 retval = 0;
498 }
499 break;
500
501 case OID_GEN_BROADCAST_FRAMES_RCV:
502 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
503 if (rndis_per_dev_params [configNr].stats) {
504 *((__le32 *) resp + 6) = cpu_to_le32 (
505 rndis_per_dev_params [configNr]
506 .stats->rx_packets/42);
507 retval = 0;
508 } else {
509 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
510 retval = 0;
511 }
512 break;
513
514 case OID_GEN_RCV_CRC_ERROR:
515 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
516 if (rndis_per_dev_params [configNr].stats) {
517 *((__le32 *) resp + 6) = cpu_to_le32 (
518 rndis_per_dev_params [configNr]
519 .stats->rx_crc_errors);
520 retval = 0;
521 } else {
522 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
523 retval = 0;
524 }
525 break;
526
527 case OID_GEN_TRANSMIT_QUEUE_LENGTH:
528 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
529 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
530 retval = 0;
531 break;
532 #endif /* RNDIS_OPTIONAL_STATS */
533
534 /* ieee802.3 OIDs (table 4-3) */
535
536 /* mandatory */
537 case OID_802_3_PERMANENT_ADDRESS:
538 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
539 if (rndis_per_dev_params [configNr].dev) {
540 length = ETH_ALEN;
541 memcpy ((u8 *) resp + 24,
542 rndis_per_dev_params [configNr].host_mac,
543 length);
544 retval = 0;
545 } else {
546 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
547 retval = 0;
548 }
549 break;
550
551 /* mandatory */
552 case OID_802_3_CURRENT_ADDRESS:
553 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
554 if (rndis_per_dev_params [configNr].dev) {
555 length = ETH_ALEN;
556 memcpy ((u8 *) resp + 24,
557 rndis_per_dev_params [configNr].host_mac,
558 length);
559 retval = 0;
560 }
561 break;
562
563 /* mandatory */
564 case OID_802_3_MULTICAST_LIST:
565 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
566 length = 4;
567 /* Multicast base address only */
568 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0xE0000000);
569 retval = 0;
570 break;
571
572 /* mandatory */
573 case OID_802_3_MAXIMUM_LIST_SIZE:
574 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
575 length = 4;
576 /* Multicast base address only */
577 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (1);
578 retval = 0;
579 break;
580
581 case OID_802_3_MAC_OPTIONS:
582 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
583 break;
584
585 /* ieee802.3 statistics OIDs (table 4-4) */
586
587 /* mandatory */
588 case OID_802_3_RCV_ERROR_ALIGNMENT:
589 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
590 if (rndis_per_dev_params [configNr].stats)
591 {
592 length = 4;
593 *((__le32 *) resp + 6) = cpu_to_le32 (
594 rndis_per_dev_params [configNr]
595 .stats->rx_frame_errors);
596 retval = 0;
597 }
598 break;
599
600 /* mandatory */
601 case OID_802_3_XMIT_ONE_COLLISION:
602 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
603 length = 4;
604 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
605 retval = 0;
606 break;
607
608 /* mandatory */
609 case OID_802_3_XMIT_MORE_COLLISIONS:
610 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
611 length = 4;
612 *((__le32 *) resp + 6) = __constant_cpu_to_le32 (0);
613 retval = 0;
614 break;
615
616 #ifdef RNDIS_OPTIONAL_STATS
617 case OID_802_3_XMIT_DEFERRED:
618 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
619 /* TODO */
620 break;
621
622 case OID_802_3_XMIT_MAX_COLLISIONS:
623 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
624 /* TODO */
625 break;
626
627 case OID_802_3_RCV_OVERRUN:
628 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
629 /* TODO */
630 break;
631
632 case OID_802_3_XMIT_UNDERRUN:
633 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
634 /* TODO */
635 break;
636
637 case OID_802_3_XMIT_HEARTBEAT_FAILURE:
638 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
639 /* TODO */
640 break;
641
642 case OID_802_3_XMIT_TIMES_CRS_LOST:
643 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
644 /* TODO */
645 break;
646
647 case OID_802_3_XMIT_LATE_COLLISIONS:
648 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
649 /* TODO */
650 break;
651 #endif /* RNDIS_OPTIONAL_STATS */
652
653 #ifdef RNDIS_PM
654 /* power management OIDs (table 4-5) */
655 case OID_PNP_CAPABILITIES:
656 DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
657
658 /* just PM, and remote wakeup on link status change
659 * (not magic packet or pattern match)
660 */
661 length = sizeof (struct NDIS_PNP_CAPABILITIES);
662 memset (resp, 0, length);
663 {
664 struct NDIS_PNP_CAPABILITIES *caps = (void *) resp;
665
666 caps->Flags = NDIS_DEVICE_WAKE_UP_ENABLE;
667 caps->WakeUpCapabilities.MinLinkChangeWakeUp
668 = NdisDeviceStateD3;
669
670 /* FIXME then use usb_gadget_wakeup(), and
671 * set USB_CONFIG_ATT_WAKEUP in config desc
672 */
673 }
674 retval = 0;
675 break;
676 case OID_PNP_QUERY_POWER:
677 DEBUG("%s: OID_PNP_QUERY_POWER\n", __FUNCTION__);
678 /* sure, handle any power state that maps to USB suspend */
679 retval = 0;
680 break;
681 #endif
682
683 default:
684 printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
685 __FUNCTION__, OID);
686 }
687
688 resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
689 resp->InformationBufferLength = cpu_to_le32 (length);
690 resp->MessageLength = cpu_to_le32 (24 + length);
691 r->length = 24 + length;
692 return retval;
693 }
694
695 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
696 rndis_resp_t *r)
697 {
698 rndis_set_cmplt_type *resp;
699 int i, retval = -ENOTSUPP;
700 struct rndis_params *params;
701
702 if (!r)
703 return -ENOMEM;
704 resp = (rndis_set_cmplt_type *) r->buf;
705 if (!resp)
706 return -ENOMEM;
707
708 DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
709 for (i = 0; i < buf_len; i += 16) {
710 DEBUG ("%03d: "
711 " %02x %02x %02x %02x"
712 " %02x %02x %02x %02x"
713 " %02x %02x %02x %02x"
714 " %02x %02x %02x %02x"
715 "\n",
716 i,
717 buf[i], buf [i+1],
718 buf[i+2], buf[i+3],
719 buf[i+4], buf [i+5],
720 buf[i+6], buf[i+7],
721 buf[i+8], buf [i+9],
722 buf[i+10], buf[i+11],
723 buf[i+12], buf [i+13],
724 buf[i+14], buf[i+15]);
725 }
726
727 switch (OID) {
728 case OID_GEN_CURRENT_PACKET_FILTER:
729 params = &rndis_per_dev_params [configNr];
730 retval = 0;
731
732 /* FIXME use these NDIS_PACKET_TYPE_* bitflags to
733 * set the cdc_filter; it's not RNDIS-specific
734 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
735 * PROMISCUOUS, DIRECTED,
736 * MULTICAST, ALL_MULTICAST, BROADCAST
737 */
738 params->filter = le32_to_cpup((__le32 *)buf);
739 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
740 __FUNCTION__, params->filter);
741
742 /* this call has a significant side effect: it's
743 * what makes the packet flow start and stop, like
744 * activating the CDC Ethernet altsetting.
745 */
746 if (params->filter) {
747 params->state = RNDIS_DATA_INITIALIZED;
748 netif_carrier_on(params->dev);
749 if (netif_running(params->dev))
750 netif_wake_queue (params->dev);
751 } else {
752 params->state = RNDIS_INITIALIZED;
753 netif_carrier_off (params->dev);
754 netif_stop_queue (params->dev);
755 }
756 break;
757
758 case OID_802_3_MULTICAST_LIST:
759 /* I think we can ignore this */
760 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
761 retval = 0;
762 break;
763 #if 0
764 case OID_GEN_RNDIS_CONFIG_PARAMETER:
765 {
766 struct rndis_config_parameter *param;
767 param = (struct rndis_config_parameter *) buf;
768 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
769 __FUNCTION__,
770 min(cpu_to_le32(param->ParameterNameLength),80),
771 buf + param->ParameterNameOffset);
772 retval = 0;
773 }
774 break;
775 #endif
776
777 #ifdef RNDIS_PM
778 case OID_PNP_SET_POWER:
779 DEBUG ("OID_PNP_SET_POWER\n");
780 /* sure, handle any power state that maps to USB suspend */
781 retval = 0;
782 break;
783
784 case OID_PNP_ENABLE_WAKE_UP:
785 /* always-connected ... */
786 DEBUG ("OID_PNP_ENABLE_WAKE_UP\n");
787 retval = 0;
788 break;
789
790 // no PM resume patterns supported (specified where?)
791 // so OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN always fails
792 #endif
793
794 default:
795 printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
796 __FUNCTION__, OID, buf_len);
797 }
798
799 return retval;
800 }
801
802 /*
803 * Response Functions
804 */
805
806 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
807 {
808 rndis_init_cmplt_type *resp;
809 rndis_resp_t *r;
810
811 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
812
813 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
814
815 if (!r) return -ENOMEM;
816
817 resp = (rndis_init_cmplt_type *) r->buf;
818
819 if (!resp) return -ENOMEM;
820
821 resp->MessageType = __constant_cpu_to_le32 (
822 REMOTE_NDIS_INITIALIZE_CMPLT);
823 resp->MessageLength = __constant_cpu_to_le32 (52);
824 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
825 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
826 resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
827 resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
828 resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
829 resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
830 resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
831 resp->MaxTransferSize = cpu_to_le32 (
832 rndis_per_dev_params [configNr].dev->mtu
833 + sizeof (struct ethhdr)
834 + sizeof (struct rndis_packet_msg_type)
835 + 22);
836 resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
837 resp->AFListOffset = __constant_cpu_to_le32 (0);
838 resp->AFListSize = __constant_cpu_to_le32 (0);
839
840 if (rndis_per_dev_params [configNr].ack)
841 rndis_per_dev_params [configNr].ack (
842 rndis_per_dev_params [configNr].dev);
843
844 return 0;
845 }
846
847 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
848 {
849 rndis_query_cmplt_type *resp;
850 rndis_resp_t *r;
851
852 // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
853 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
854
855 /*
856 * we need more memory:
857 * oid_supported_list is the largest answer
858 */
859 r = rndis_add_response (configNr, sizeof (oid_supported_list));
860
861 if (!r) return -ENOMEM;
862 resp = (rndis_query_cmplt_type *) r->buf;
863
864 if (!resp) return -ENOMEM;
865
866 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
867 resp->MessageLength = __constant_cpu_to_le32 (24);
868 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
869
870 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID), r)) {
871 /* OID not supported */
872 resp->Status = __constant_cpu_to_le32 (
873 RNDIS_STATUS_NOT_SUPPORTED);
874 resp->InformationBufferLength = __constant_cpu_to_le32 (0);
875 resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
876 } else
877 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
878
879 if (rndis_per_dev_params [configNr].ack)
880 rndis_per_dev_params [configNr].ack (
881 rndis_per_dev_params [configNr].dev);
882 return 0;
883 }
884
885 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
886 {
887 u32 BufLength, BufOffset;
888 rndis_set_cmplt_type *resp;
889 rndis_resp_t *r;
890
891 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
892
893 if (!r) return -ENOMEM;
894 resp = (rndis_set_cmplt_type *) r->buf;
895 if (!resp) return -ENOMEM;
896
897 BufLength = le32_to_cpu (buf->InformationBufferLength);
898 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
899
900 #ifdef VERBOSE
901 DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
902 DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
903 DEBUG("%s: InfoBuffer: ", __FUNCTION__);
904
905 for (i = 0; i < BufLength; i++) {
906 DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
907 }
908
909 DEBUG ("\n");
910 #endif
911
912 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
913 resp->MessageLength = __constant_cpu_to_le32 (16);
914 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
915 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
916 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
917 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
918 else resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
919
920 if (rndis_per_dev_params [configNr].ack)
921 rndis_per_dev_params [configNr].ack (
922 rndis_per_dev_params [configNr].dev);
923
924 return 0;
925 }
926
927 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
928 {
929 rndis_reset_cmplt_type *resp;
930 rndis_resp_t *r;
931
932 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
933
934 if (!r) return -ENOMEM;
935 resp = (rndis_reset_cmplt_type *) r->buf;
936 if (!resp) return -ENOMEM;
937
938 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
939 resp->MessageLength = __constant_cpu_to_le32 (16);
940 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
941 /* resent information */
942 resp->AddressingReset = __constant_cpu_to_le32 (1);
943
944 if (rndis_per_dev_params [configNr].ack)
945 rndis_per_dev_params [configNr].ack (
946 rndis_per_dev_params [configNr].dev);
947
948 return 0;
949 }
950
951 static int rndis_keepalive_response (int configNr,
952 rndis_keepalive_msg_type *buf)
953 {
954 rndis_keepalive_cmplt_type *resp;
955 rndis_resp_t *r;
956
957 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
958
959 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
960 resp = (rndis_keepalive_cmplt_type *) r->buf;
961 if (!resp) return -ENOMEM;
962
963 resp->MessageType = __constant_cpu_to_le32 (
964 REMOTE_NDIS_KEEPALIVE_CMPLT);
965 resp->MessageLength = __constant_cpu_to_le32 (16);
966 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
967 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
968
969 if (rndis_per_dev_params [configNr].ack)
970 rndis_per_dev_params [configNr].ack (
971 rndis_per_dev_params [configNr].dev);
972
973 return 0;
974 }
975
976
977 /*
978 * Device to Host Comunication
979 */
980 static int rndis_indicate_status_msg (int configNr, u32 status)
981 {
982 rndis_indicate_status_msg_type *resp;
983 rndis_resp_t *r;
984
985 if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
986 return -ENOTSUPP;
987
988 r = rndis_add_response (configNr,
989 sizeof (rndis_indicate_status_msg_type));
990 if (!r) return -ENOMEM;
991
992 resp = (rndis_indicate_status_msg_type *) r->buf;
993 if (!resp) return -ENOMEM;
994
995 resp->MessageType = __constant_cpu_to_le32 (
996 REMOTE_NDIS_INDICATE_STATUS_MSG);
997 resp->MessageLength = __constant_cpu_to_le32 (20);
998 resp->Status = cpu_to_le32 (status);
999 resp->StatusBufferLength = __constant_cpu_to_le32 (0);
1000 resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
1001
1002 if (rndis_per_dev_params [configNr].ack)
1003 rndis_per_dev_params [configNr].ack (
1004 rndis_per_dev_params [configNr].dev);
1005 return 0;
1006 }
1007
1008 int rndis_signal_connect (int configNr)
1009 {
1010 rndis_per_dev_params [configNr].media_state
1011 = NDIS_MEDIA_STATE_CONNECTED;
1012 return rndis_indicate_status_msg (configNr,
1013 RNDIS_STATUS_MEDIA_CONNECT);
1014 }
1015
1016 int rndis_signal_disconnect (int configNr)
1017 {
1018 rndis_per_dev_params [configNr].media_state
1019 = NDIS_MEDIA_STATE_DISCONNECTED;
1020 return rndis_indicate_status_msg (configNr,
1021 RNDIS_STATUS_MEDIA_DISCONNECT);
1022 }
1023
1024 void rndis_set_host_mac (int configNr, const u8 *addr)
1025 {
1026 rndis_per_dev_params [configNr].host_mac = addr;
1027 }
1028
1029 /*
1030 * Message Parser
1031 */
1032 int rndis_msg_parser (u8 configNr, u8 *buf)
1033 {
1034 u32 MsgType, MsgLength;
1035 __le32 *tmp;
1036 struct rndis_params *params;
1037
1038 if (!buf)
1039 return -ENOMEM;
1040
1041 tmp = (__le32 *) buf;
1042 MsgType = le32_to_cpup(tmp++);
1043 MsgLength = le32_to_cpup(tmp++);
1044
1045 if (configNr >= RNDIS_MAX_CONFIGS)
1046 return -ENOTSUPP;
1047 params = &rndis_per_dev_params [configNr];
1048
1049 /* For USB: responses may take up to 10 seconds */
1050 switch (MsgType)
1051 {
1052 case REMOTE_NDIS_INITIALIZE_MSG:
1053 DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1054 __FUNCTION__ );
1055 params->state = RNDIS_INITIALIZED;
1056 return rndis_init_response (configNr,
1057 (rndis_init_msg_type *) buf);
1058
1059 case REMOTE_NDIS_HALT_MSG:
1060 DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
1061 __FUNCTION__ );
1062 params->state = RNDIS_UNINITIALIZED;
1063 if (params->dev) {
1064 netif_carrier_off (params->dev);
1065 netif_stop_queue (params->dev);
1066 }
1067 return 0;
1068
1069 case REMOTE_NDIS_QUERY_MSG:
1070 return rndis_query_response (configNr,
1071 (rndis_query_msg_type *) buf);
1072
1073 case REMOTE_NDIS_SET_MSG:
1074 return rndis_set_response (configNr,
1075 (rndis_set_msg_type *) buf);
1076
1077 case REMOTE_NDIS_RESET_MSG:
1078 DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
1079 __FUNCTION__ );
1080 return rndis_reset_response (configNr,
1081 (rndis_reset_msg_type *) buf);
1082
1083 case REMOTE_NDIS_KEEPALIVE_MSG:
1084 /* For USB: host does this every 5 seconds */
1085 #ifdef VERBOSE
1086 DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
1087 __FUNCTION__ );
1088 #endif
1089 return rndis_keepalive_response (configNr,
1090 (rndis_keepalive_msg_type *)
1091 buf);
1092
1093 default:
1094 /* At least Windows XP emits some undefined RNDIS messages.
1095 * In one case those messages seemed to relate to the host
1096 * suspending itself.
1097 */
1098 printk (KERN_WARNING
1099 "%s: unknown RNDIS message 0x%08X len %d\n",
1100 __FUNCTION__ , MsgType, MsgLength);
1101 {
1102 unsigned i;
1103 for (i = 0; i < MsgLength; i += 16) {
1104 DEBUG ("%03d: "
1105 " %02x %02x %02x %02x"
1106 " %02x %02x %02x %02x"
1107 " %02x %02x %02x %02x"
1108 " %02x %02x %02x %02x"
1109 "\n",
1110 i,
1111 buf[i], buf [i+1],
1112 buf[i+2], buf[i+3],
1113 buf[i+4], buf [i+5],
1114 buf[i+6], buf[i+7],
1115 buf[i+8], buf [i+9],
1116 buf[i+10], buf[i+11],
1117 buf[i+12], buf [i+13],
1118 buf[i+14], buf[i+15]);
1119 }
1120 }
1121 break;
1122 }
1123
1124 return -ENOTSUPP;
1125 }
1126
1127 int rndis_register (int (* rndis_control_ack) (struct net_device *))
1128 {
1129 u8 i;
1130
1131 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1132 if (!rndis_per_dev_params [i].used) {
1133 rndis_per_dev_params [i].used = 1;
1134 rndis_per_dev_params [i].ack = rndis_control_ack;
1135 DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
1136 return i;
1137 }
1138 }
1139 DEBUG("failed\n");
1140
1141 return -1;
1142 }
1143
1144 void rndis_deregister (int configNr)
1145 {
1146 DEBUG("%s: \n", __FUNCTION__ );
1147
1148 if (configNr >= RNDIS_MAX_CONFIGS) return;
1149 rndis_per_dev_params [configNr].used = 0;
1150
1151 return;
1152 }
1153
1154 int rndis_set_param_dev (u8 configNr, struct net_device *dev,
1155 struct net_device_stats *stats)
1156 {
1157 DEBUG("%s:\n", __FUNCTION__ );
1158 if (!dev || !stats) return -1;
1159 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1160
1161 rndis_per_dev_params [configNr].dev = dev;
1162 rndis_per_dev_params [configNr].stats = stats;
1163
1164 return 0;
1165 }
1166
1167 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1168 {
1169 DEBUG("%s:\n", __FUNCTION__ );
1170 if (!vendorDescr) return -1;
1171 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1172
1173 rndis_per_dev_params [configNr].vendorID = vendorID;
1174 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
1175
1176 return 0;
1177 }
1178
1179 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1180 {
1181 DEBUG("%s:\n", __FUNCTION__ );
1182 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1183
1184 rndis_per_dev_params [configNr].medium = medium;
1185 rndis_per_dev_params [configNr].speed = speed;
1186
1187 return 0;
1188 }
1189
1190 void rndis_add_hdr (struct sk_buff *skb)
1191 {
1192 struct rndis_packet_msg_type *header;
1193
1194 if (!skb)
1195 return;
1196 header = (void *) skb_push (skb, sizeof *header);
1197 memset (header, 0, sizeof *header);
1198 header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
1199 header->MessageLength = cpu_to_le32(skb->len);
1200 header->DataOffset = __constant_cpu_to_le32 (36);
1201 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
1202 }
1203
1204 void rndis_free_response (int configNr, u8 *buf)
1205 {
1206 rndis_resp_t *r;
1207 struct list_head *act, *tmp;
1208
1209 list_for_each_safe (act, tmp,
1210 &(rndis_per_dev_params [configNr].resp_queue))
1211 {
1212 r = list_entry (act, rndis_resp_t, list);
1213 if (r && r->buf == buf) {
1214 list_del (&r->list);
1215 kfree (r);
1216 }
1217 }
1218 }
1219
1220 u8 *rndis_get_next_response (int configNr, u32 *length)
1221 {
1222 rndis_resp_t *r;
1223 struct list_head *act, *tmp;
1224
1225 if (!length) return NULL;
1226
1227 list_for_each_safe (act, tmp,
1228 &(rndis_per_dev_params [configNr].resp_queue))
1229 {
1230 r = list_entry (act, rndis_resp_t, list);
1231 if (!r->send) {
1232 r->send = 1;
1233 *length = r->length;
1234 return r->buf;
1235 }
1236 }
1237
1238 return NULL;
1239 }
1240
1241 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1242 {
1243 rndis_resp_t *r;
1244
1245 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1246 if (!r) return NULL;
1247
1248 r->buf = (u8 *) (r + 1);
1249 r->length = length;
1250 r->send = 0;
1251
1252 list_add_tail (&r->list,
1253 &(rndis_per_dev_params [configNr].resp_queue));
1254 return r;
1255 }
1256
1257 int rndis_rm_hdr(struct sk_buff *skb)
1258 {
1259 /* tmp points to a struct rndis_packet_msg_type */
1260 __le32 *tmp = (void *) skb->data;
1261
1262 /* MessageType, MessageLength */
1263 if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1264 != get_unaligned(tmp++))
1265 return -EINVAL;
1266 tmp++;
1267
1268 /* DataOffset, DataLength */
1269 if (!skb_pull(skb, le32_to_cpu(get_unaligned(tmp++))
1270 + 8 /* offset of DataOffset */))
1271 return -EOVERFLOW;
1272 skb_trim(skb, le32_to_cpu(get_unaligned(tmp++)));
1273
1274 return 0;
1275 }
1276
1277 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1278
1279 static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1280 void *data)
1281 {
1282 char *out = page;
1283 int len;
1284 rndis_params *param = (rndis_params *) data;
1285
1286 out += snprintf (out, count,
1287 "Config Nr. %d\n"
1288 "used : %s\n"
1289 "state : %s\n"
1290 "medium : 0x%08X\n"
1291 "speed : %d\n"
1292 "cable : %s\n"
1293 "vendor ID : 0x%08X\n"
1294 "vendor : %s\n",
1295 param->confignr, (param->used) ? "y" : "n",
1296 ({ char *s = "?";
1297 switch (param->state) {
1298 case RNDIS_UNINITIALIZED:
1299 s = "RNDIS_UNINITIALIZED"; break;
1300 case RNDIS_INITIALIZED:
1301 s = "RNDIS_INITIALIZED"; break;
1302 case RNDIS_DATA_INITIALIZED:
1303 s = "RNDIS_DATA_INITIALIZED"; break;
1304 }; s; }),
1305 param->medium,
1306 (param->media_state) ? 0 : param->speed*100,
1307 (param->media_state) ? "disconnected" : "connected",
1308 param->vendorID, param->vendorDescr);
1309
1310 len = out - page;
1311 len -= off;
1312
1313 if (len < count) {
1314 *eof = 1;
1315 if (len <= 0)
1316 return 0;
1317 } else
1318 len = count;
1319
1320 *start = page + off;
1321 return len;
1322 }
1323
1324 static int rndis_proc_write (struct file *file, const char __user *buffer,
1325 unsigned long count, void *data)
1326 {
1327 rndis_params *p = data;
1328 u32 speed = 0;
1329 int i, fl_speed = 0;
1330
1331 for (i = 0; i < count; i++) {
1332 char c;
1333 if (get_user(c, buffer))
1334 return -EFAULT;
1335 switch (c) {
1336 case '0':
1337 case '1':
1338 case '2':
1339 case '3':
1340 case '4':
1341 case '5':
1342 case '6':
1343 case '7':
1344 case '8':
1345 case '9':
1346 fl_speed = 1;
1347 speed = speed*10 + c - '0';
1348 break;
1349 case 'C':
1350 case 'c':
1351 rndis_signal_connect (p->confignr);
1352 break;
1353 case 'D':
1354 case 'd':
1355 rndis_signal_disconnect(p->confignr);
1356 break;
1357 default:
1358 if (fl_speed) p->speed = speed;
1359 else DEBUG ("%c is not valid\n", c);
1360 break;
1361 }
1362
1363 buffer++;
1364 }
1365
1366 return count;
1367 }
1368
1369 #define NAME_TEMPLATE "driver/rndis-%03d"
1370
1371 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1372
1373 #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1374
1375
1376 int __init rndis_init (void)
1377 {
1378 u8 i;
1379
1380 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1381 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1382 char name [20];
1383
1384 sprintf (name, NAME_TEMPLATE, i);
1385 if (!(rndis_connect_state [i]
1386 = create_proc_entry (name, 0660, NULL)))
1387 {
1388 DEBUG ("%s :remove entries", __FUNCTION__);
1389 while (i) {
1390 sprintf (name, NAME_TEMPLATE, --i);
1391 remove_proc_entry (name, NULL);
1392 }
1393 DEBUG ("\n");
1394 return -EIO;
1395 }
1396
1397 rndis_connect_state [i]->nlink = 1;
1398 rndis_connect_state [i]->write_proc = rndis_proc_write;
1399 rndis_connect_state [i]->read_proc = rndis_proc_read;
1400 rndis_connect_state [i]->data = (void *)
1401 (rndis_per_dev_params + i);
1402 #endif
1403 rndis_per_dev_params [i].confignr = i;
1404 rndis_per_dev_params [i].used = 0;
1405 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1406 rndis_per_dev_params [i].media_state
1407 = NDIS_MEDIA_STATE_DISCONNECTED;
1408 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1409 }
1410
1411 return 0;
1412 }
1413
1414 void rndis_exit (void)
1415 {
1416 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1417 u8 i;
1418 char name [20];
1419
1420 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1421 sprintf (name, NAME_TEMPLATE, i);
1422 remove_proc_entry (name, NULL);
1423 }
1424 #endif
1425 }
1426
Linus' kernel tree