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Merge linux-2.6 into linux-acpi-2.6 test
[linux-2.6/kmemtrace.git] / drivers / usb / gadget / rndis.c
blob06b6eba925b59e5542378eca866387fe4ba9c15e
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 RNDIS_WAKEUP
45 #undef VERBOSE
46
47 #include "rndis.h"
48
49
50 /* The driver for your USB chip needs to support ep0 OUT to work with
51 * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
52 *
53 * Windows hosts need an INF file like Documentation/usb/linux.inf
54 * and will be happier if you provide the host_addr module parameter.
55 */
56
57 #if 0
58 #define DEBUG(str,args...) do { \
59 if (rndis_debug) \
60 printk(KERN_DEBUG str , ## args ); \
61 } while (0)
62 static int rndis_debug = 0;
63
64 module_param (rndis_debug, int, 0);
65 MODULE_PARM_DESC (rndis_debug, "enable debugging");
66
67 #else
68
69 #define rndis_debug 0
70 #define DEBUG(str,args...) do{}while(0)
71 #endif
72
73 #define RNDIS_MAX_CONFIGS 1
74
75
76 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
77
78 /* Driver Version */
79 static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
80
81 /* Function Prototypes */
82 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
83
84
85 /* supported OIDs */
86 static const u32 oid_supported_list [] =
87 {
88 /* the general stuff */
89 OID_GEN_SUPPORTED_LIST,
90 OID_GEN_HARDWARE_STATUS,
91 OID_GEN_MEDIA_SUPPORTED,
92 OID_GEN_MEDIA_IN_USE,
93 OID_GEN_MAXIMUM_FRAME_SIZE,
94 OID_GEN_LINK_SPEED,
95 OID_GEN_TRANSMIT_BLOCK_SIZE,
96 OID_GEN_RECEIVE_BLOCK_SIZE,
97 OID_GEN_VENDOR_ID,
98 OID_GEN_VENDOR_DESCRIPTION,
99 OID_GEN_VENDOR_DRIVER_VERSION,
100 OID_GEN_CURRENT_PACKET_FILTER,
101 OID_GEN_MAXIMUM_TOTAL_SIZE,
102 OID_GEN_MEDIA_CONNECT_STATUS,
103 OID_GEN_PHYSICAL_MEDIUM,
104 #if 0
105 OID_GEN_RNDIS_CONFIG_PARAMETER,
106 #endif
107
108 /* the statistical stuff */
109 OID_GEN_XMIT_OK,
110 OID_GEN_RCV_OK,
111 OID_GEN_XMIT_ERROR,
112 OID_GEN_RCV_ERROR,
113 OID_GEN_RCV_NO_BUFFER,
114 #ifdef RNDIS_OPTIONAL_STATS
115 OID_GEN_DIRECTED_BYTES_XMIT,
116 OID_GEN_DIRECTED_FRAMES_XMIT,
117 OID_GEN_MULTICAST_BYTES_XMIT,
118 OID_GEN_MULTICAST_FRAMES_XMIT,
119 OID_GEN_BROADCAST_BYTES_XMIT,
120 OID_GEN_BROADCAST_FRAMES_XMIT,
121 OID_GEN_DIRECTED_BYTES_RCV,
122 OID_GEN_DIRECTED_FRAMES_RCV,
123 OID_GEN_MULTICAST_BYTES_RCV,
124 OID_GEN_MULTICAST_FRAMES_RCV,
125 OID_GEN_BROADCAST_BYTES_RCV,
126 OID_GEN_BROADCAST_FRAMES_RCV,
127 OID_GEN_RCV_CRC_ERROR,
128 OID_GEN_TRANSMIT_QUEUE_LENGTH,
129 #endif /* RNDIS_OPTIONAL_STATS */
130
131 /* mandatory 802.3 */
132 /* the general stuff */
133 OID_802_3_PERMANENT_ADDRESS,
134 OID_802_3_CURRENT_ADDRESS,
135 OID_802_3_MULTICAST_LIST,
136 OID_802_3_MAC_OPTIONS,
137 OID_802_3_MAXIMUM_LIST_SIZE,
138
139 /* the statistical stuff */
140 OID_802_3_RCV_ERROR_ALIGNMENT,
141 OID_802_3_XMIT_ONE_COLLISION,
142 OID_802_3_XMIT_MORE_COLLISIONS,
143 #ifdef RNDIS_OPTIONAL_STATS
144 OID_802_3_XMIT_DEFERRED,
145 OID_802_3_XMIT_MAX_COLLISIONS,
146 OID_802_3_RCV_OVERRUN,
147 OID_802_3_XMIT_UNDERRUN,
148 OID_802_3_XMIT_HEARTBEAT_FAILURE,
149 OID_802_3_XMIT_TIMES_CRS_LOST,
150 OID_802_3_XMIT_LATE_COLLISIONS,
151 #endif /* RNDIS_OPTIONAL_STATS */
152
153 #ifdef RNDIS_PM
154 /* PM and wakeup are mandatory for USB: */
155
156 /* power management */
157 OID_PNP_CAPABILITIES,
158 OID_PNP_QUERY_POWER,
159 OID_PNP_SET_POWER,
160
161 #ifdef RNDIS_WAKEUP
162 /* wake up host */
163 OID_PNP_ENABLE_WAKE_UP,
164 OID_PNP_ADD_WAKE_UP_PATTERN,
165 OID_PNP_REMOVE_WAKE_UP_PATTERN,
166 #endif /* RNDIS_WAKEUP */
167 #endif /* RNDIS_PM */
168 };
169
170
171 /* NDIS Functions */
172 static int
173 gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
174 rndis_resp_t *r)
175 {
176 int retval = -ENOTSUPP;
177 u32 length = 4; /* usually */
178 __le32 *outbuf;
179 int i, count;
180 rndis_query_cmplt_type *resp;
181
182 if (!r) return -ENOMEM;
183 resp = (rndis_query_cmplt_type *) r->buf;
184
185 if (!resp) return -ENOMEM;
186
187 if (buf_len && rndis_debug > 1) {
188 DEBUG("query OID %08x value, len %d:\n", OID, buf_len);
189 for (i = 0; i < buf_len; i += 16) {
190 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
191 le32_to_cpup((__le32 *)&buf[i]),
192 le32_to_cpup((__le32 *)&buf[i + 4]),
193 le32_to_cpup((__le32 *)&buf[i + 8]),
194 le32_to_cpup((__le32 *)&buf[i + 12]));
195 }
196 }
197
198 /* response goes here, right after the header */
199 outbuf = (__le32 *) &resp[1];
200 resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
201
202 switch (OID) {
203
204 /* general oids (table 4-1) */
205
206 /* mandatory */
207 case OID_GEN_SUPPORTED_LIST:
208 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
209 length = sizeof (oid_supported_list);
210 count = length / sizeof (u32);
211 for (i = 0; i < count; i++)
212 outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
213 retval = 0;
214 break;
215
216 /* mandatory */
217 case OID_GEN_HARDWARE_STATUS:
218 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
219 /* Bogus question!
220 * Hardware must be ready to receive high level protocols.
221 * BTW:
222 * reddite ergo quae sunt Caesaris Caesari
223 * et quae sunt Dei Deo!
224 */
225 *outbuf = __constant_cpu_to_le32 (0);
226 retval = 0;
227 break;
228
229 /* mandatory */
230 case OID_GEN_MEDIA_SUPPORTED:
231 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
232 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
233 retval = 0;
234 break;
235
236 /* mandatory */
237 case OID_GEN_MEDIA_IN_USE:
238 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
239 /* one medium, one transport... (maybe you do it better) */
240 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
241 retval = 0;
242 break;
243
244 /* mandatory */
245 case OID_GEN_MAXIMUM_FRAME_SIZE:
246 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
247 if (rndis_per_dev_params [configNr].dev) {
248 *outbuf = cpu_to_le32 (
249 rndis_per_dev_params [configNr].dev->mtu);
250 retval = 0;
251 }
252 break;
253
254 /* mandatory */
255 case OID_GEN_LINK_SPEED:
256 if (rndis_debug > 1)
257 DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
258 if (rndis_per_dev_params [configNr].media_state
259 == NDIS_MEDIA_STATE_DISCONNECTED)
260 *outbuf = __constant_cpu_to_le32 (0);
261 else
262 *outbuf = cpu_to_le32 (
263 rndis_per_dev_params [configNr].speed);
264 retval = 0;
265 break;
266
267 /* mandatory */
268 case OID_GEN_TRANSMIT_BLOCK_SIZE:
269 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
270 if (rndis_per_dev_params [configNr].dev) {
271 *outbuf = cpu_to_le32 (
272 rndis_per_dev_params [configNr].dev->mtu);
273 retval = 0;
274 }
275 break;
276
277 /* mandatory */
278 case OID_GEN_RECEIVE_BLOCK_SIZE:
279 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
280 if (rndis_per_dev_params [configNr].dev) {
281 *outbuf = cpu_to_le32 (
282 rndis_per_dev_params [configNr].dev->mtu);
283 retval = 0;
284 }
285 break;
286
287 /* mandatory */
288 case OID_GEN_VENDOR_ID:
289 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
290 *outbuf = cpu_to_le32 (
291 rndis_per_dev_params [configNr].vendorID);
292 retval = 0;
293 break;
294
295 /* mandatory */
296 case OID_GEN_VENDOR_DESCRIPTION:
297 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
298 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
299 memcpy (outbuf,
300 rndis_per_dev_params [configNr].vendorDescr, length);
301 retval = 0;
302 break;
303
304 case OID_GEN_VENDOR_DRIVER_VERSION:
305 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
306 /* Created as LE */
307 *outbuf = rndis_driver_version;
308 retval = 0;
309 break;
310
311 /* mandatory */
312 case OID_GEN_CURRENT_PACKET_FILTER:
313 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
314 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
315 retval = 0;
316 break;
317
318 /* mandatory */
319 case OID_GEN_MAXIMUM_TOTAL_SIZE:
320 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
321 *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
322 retval = 0;
323 break;
324
325 /* mandatory */
326 case OID_GEN_MEDIA_CONNECT_STATUS:
327 if (rndis_debug > 1)
328 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
329 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
330 .media_state);
331 retval = 0;
332 break;
333
334 case OID_GEN_PHYSICAL_MEDIUM:
335 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
336 *outbuf = __constant_cpu_to_le32 (0);
337 retval = 0;
338 break;
339
340 /* The RNDIS specification is incomplete/wrong. Some versions
341 * of MS-Windows expect OIDs that aren't specified there. Other
342 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
343 */
344 case OID_GEN_MAC_OPTIONS: /* from WinME */
345 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
346 *outbuf = __constant_cpu_to_le32(
347 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
348 | NDIS_MAC_OPTION_FULL_DUPLEX);
349 retval = 0;
350 break;
351
352 /* statistics OIDs (table 4-2) */
353
354 /* mandatory */
355 case OID_GEN_XMIT_OK:
356 if (rndis_debug > 1)
357 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
358 if (rndis_per_dev_params [configNr].stats) {
359 *outbuf = cpu_to_le32 (
360 rndis_per_dev_params [configNr].stats->tx_packets -
361 rndis_per_dev_params [configNr].stats->tx_errors -
362 rndis_per_dev_params [configNr].stats->tx_dropped);
363 retval = 0;
364 }
365 break;
366
367 /* mandatory */
368 case OID_GEN_RCV_OK:
369 if (rndis_debug > 1)
370 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
371 if (rndis_per_dev_params [configNr].stats) {
372 *outbuf = cpu_to_le32 (
373 rndis_per_dev_params [configNr].stats->rx_packets -
374 rndis_per_dev_params [configNr].stats->rx_errors -
375 rndis_per_dev_params [configNr].stats->rx_dropped);
376 retval = 0;
377 }
378 break;
379
380 /* mandatory */
381 case OID_GEN_XMIT_ERROR:
382 if (rndis_debug > 1)
383 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
384 if (rndis_per_dev_params [configNr].stats) {
385 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
386 .stats->tx_errors);
387 retval = 0;
388 }
389 break;
390
391 /* mandatory */
392 case OID_GEN_RCV_ERROR:
393 if (rndis_debug > 1)
394 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
395 if (rndis_per_dev_params [configNr].stats) {
396 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
397 .stats->rx_errors);
398 retval = 0;
399 }
400 break;
401
402 /* mandatory */
403 case OID_GEN_RCV_NO_BUFFER:
404 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
405 if (rndis_per_dev_params [configNr].stats) {
406 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
407 .stats->rx_dropped);
408 retval = 0;
409 }
410 break;
411
412 #ifdef RNDIS_OPTIONAL_STATS
413 case OID_GEN_DIRECTED_BYTES_XMIT:
414 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
415 /*
416 * Aunt Tilly's size of shoes
417 * minus antarctica count of penguins
418 * divided by weight of Alpha Centauri
419 */
420 if (rndis_per_dev_params [configNr].stats) {
421 *outbuf = cpu_to_le32 (
422 (rndis_per_dev_params [configNr]
423 .stats->tx_packets -
424 rndis_per_dev_params [configNr]
425 .stats->tx_errors -
426 rndis_per_dev_params [configNr]
427 .stats->tx_dropped)
428 * 123);
429 retval = 0;
430 }
431 break;
432
433 case OID_GEN_DIRECTED_FRAMES_XMIT:
434 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
435 /* dito */
436 if (rndis_per_dev_params [configNr].stats) {
437 *outbuf = cpu_to_le32 (
438 (rndis_per_dev_params [configNr]
439 .stats->tx_packets -
440 rndis_per_dev_params [configNr]
441 .stats->tx_errors -
442 rndis_per_dev_params [configNr]
443 .stats->tx_dropped)
444 / 123);
445 retval = 0;
446 }
447 break;
448
449 case OID_GEN_MULTICAST_BYTES_XMIT:
450 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
451 if (rndis_per_dev_params [configNr].stats) {
452 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
453 .stats->multicast*1234);
454 retval = 0;
455 }
456 break;
457
458 case OID_GEN_MULTICAST_FRAMES_XMIT:
459 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
460 if (rndis_per_dev_params [configNr].stats) {
461 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
462 .stats->multicast);
463 retval = 0;
464 }
465 break;
466
467 case OID_GEN_BROADCAST_BYTES_XMIT:
468 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
469 if (rndis_per_dev_params [configNr].stats) {
470 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
471 .stats->tx_packets/42*255);
472 retval = 0;
473 }
474 break;
475
476 case OID_GEN_BROADCAST_FRAMES_XMIT:
477 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
478 if (rndis_per_dev_params [configNr].stats) {
479 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
480 .stats->tx_packets/42);
481 retval = 0;
482 }
483 break;
484
485 case OID_GEN_DIRECTED_BYTES_RCV:
486 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
487 *outbuf = __constant_cpu_to_le32 (0);
488 retval = 0;
489 break;
490
491 case OID_GEN_DIRECTED_FRAMES_RCV:
492 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
493 *outbuf = __constant_cpu_to_le32 (0);
494 retval = 0;
495 break;
496
497 case OID_GEN_MULTICAST_BYTES_RCV:
498 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
499 if (rndis_per_dev_params [configNr].stats) {
500 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
501 .stats->multicast * 1111);
502 retval = 0;
503 }
504 break;
505
506 case OID_GEN_MULTICAST_FRAMES_RCV:
507 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
508 if (rndis_per_dev_params [configNr].stats) {
509 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
510 .stats->multicast);
511 retval = 0;
512 }
513 break;
514
515 case OID_GEN_BROADCAST_BYTES_RCV:
516 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
517 if (rndis_per_dev_params [configNr].stats) {
518 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
519 .stats->rx_packets/42*255);
520 retval = 0;
521 }
522 break;
523
524 case OID_GEN_BROADCAST_FRAMES_RCV:
525 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
526 if (rndis_per_dev_params [configNr].stats) {
527 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
528 .stats->rx_packets/42);
529 retval = 0;
530 }
531 break;
532
533 case OID_GEN_RCV_CRC_ERROR:
534 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
535 if (rndis_per_dev_params [configNr].stats) {
536 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
537 .stats->rx_crc_errors);
538 retval = 0;
539 }
540 break;
541
542 case OID_GEN_TRANSMIT_QUEUE_LENGTH:
543 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
544 *outbuf = __constant_cpu_to_le32 (0);
545 retval = 0;
546 break;
547 #endif /* RNDIS_OPTIONAL_STATS */
548
549 /* ieee802.3 OIDs (table 4-3) */
550
551 /* mandatory */
552 case OID_802_3_PERMANENT_ADDRESS:
553 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
554 if (rndis_per_dev_params [configNr].dev) {
555 length = ETH_ALEN;
556 memcpy (outbuf,
557 rndis_per_dev_params [configNr].host_mac,
558 length);
559 retval = 0;
560 }
561 break;
562
563 /* mandatory */
564 case OID_802_3_CURRENT_ADDRESS:
565 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
566 if (rndis_per_dev_params [configNr].dev) {
567 length = ETH_ALEN;
568 memcpy (outbuf,
569 rndis_per_dev_params [configNr].host_mac,
570 length);
571 retval = 0;
572 }
573 break;
574
575 /* mandatory */
576 case OID_802_3_MULTICAST_LIST:
577 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
578 /* Multicast base address only */
579 *outbuf = __constant_cpu_to_le32 (0xE0000000);
580 retval = 0;
581 break;
582
583 /* mandatory */
584 case OID_802_3_MAXIMUM_LIST_SIZE:
585 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
586 /* Multicast base address only */
587 *outbuf = __constant_cpu_to_le32 (1);
588 retval = 0;
589 break;
590
591 case OID_802_3_MAC_OPTIONS:
592 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
593 break;
594
595 /* ieee802.3 statistics OIDs (table 4-4) */
596
597 /* mandatory */
598 case OID_802_3_RCV_ERROR_ALIGNMENT:
599 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
600 if (rndis_per_dev_params [configNr].stats) {
601 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
602 .stats->rx_frame_errors);
603 retval = 0;
604 }
605 break;
606
607 /* mandatory */
608 case OID_802_3_XMIT_ONE_COLLISION:
609 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
610 *outbuf = __constant_cpu_to_le32 (0);
611 retval = 0;
612 break;
613
614 /* mandatory */
615 case OID_802_3_XMIT_MORE_COLLISIONS:
616 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
617 *outbuf = __constant_cpu_to_le32 (0);
618 retval = 0;
619 break;
620
621 #ifdef RNDIS_OPTIONAL_STATS
622 case OID_802_3_XMIT_DEFERRED:
623 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
624 /* TODO */
625 break;
626
627 case OID_802_3_XMIT_MAX_COLLISIONS:
628 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
629 /* TODO */
630 break;
631
632 case OID_802_3_RCV_OVERRUN:
633 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
634 /* TODO */
635 break;
636
637 case OID_802_3_XMIT_UNDERRUN:
638 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
639 /* TODO */
640 break;
641
642 case OID_802_3_XMIT_HEARTBEAT_FAILURE:
643 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
644 /* TODO */
645 break;
646
647 case OID_802_3_XMIT_TIMES_CRS_LOST:
648 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
649 /* TODO */
650 break;
651
652 case OID_802_3_XMIT_LATE_COLLISIONS:
653 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
654 /* TODO */
655 break;
656 #endif /* RNDIS_OPTIONAL_STATS */
657
658 #ifdef RNDIS_PM
659 /* power management OIDs (table 4-5) */
660 case OID_PNP_CAPABILITIES:
661 DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
662
663 /* for now, no wakeup capabilities */
664 length = sizeof (struct NDIS_PNP_CAPABILITIES);
665 memset(outbuf, 0, length);
666 retval = 0;
667 break;
668 case OID_PNP_QUERY_POWER:
669 DEBUG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__,
670 le32_to_cpup((__le32 *) buf) - 1);
671 /* only suspend is a real power state, and
672 * it can't be entered by OID_PNP_SET_POWER...
673 */
674 length = 0;
675 retval = 0;
676 break;
677 #endif
678
679 default:
680 printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
681 __FUNCTION__, OID);
682 }
683 if (retval < 0)
684 length = 0;
685
686 resp->InformationBufferLength = cpu_to_le32 (length);
687 r->length = length + sizeof *resp;
688 resp->MessageLength = cpu_to_le32 (r->length);
689 return retval;
690 }
691
692 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
693 rndis_resp_t *r)
694 {
695 rndis_set_cmplt_type *resp;
696 int i, retval = -ENOTSUPP;
697 struct rndis_params *params;
698
699 if (!r)
700 return -ENOMEM;
701 resp = (rndis_set_cmplt_type *) r->buf;
702 if (!resp)
703 return -ENOMEM;
704
705 if (buf_len && rndis_debug > 1) {
706 DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
707 for (i = 0; i < buf_len; i += 16) {
708 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
709 le32_to_cpup((__le32 *)&buf[i]),
710 le32_to_cpup((__le32 *)&buf[i + 4]),
711 le32_to_cpup((__le32 *)&buf[i + 8]),
712 le32_to_cpup((__le32 *)&buf[i + 12]));
713 }
714 }
715
716 params = &rndis_per_dev_params [configNr];
717 switch (OID) {
718 case OID_GEN_CURRENT_PACKET_FILTER:
719
720 /* these NDIS_PACKET_TYPE_* bitflags are shared with
721 * cdc_filter; it's not RNDIS-specific
722 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
723 * PROMISCUOUS, DIRECTED,
724 * MULTICAST, ALL_MULTICAST, BROADCAST
725 */
726 *params->filter = (u16) le32_to_cpup((__le32 *)buf);
727 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
728 __FUNCTION__, *params->filter);
729
730 /* this call has a significant side effect: it's
731 * what makes the packet flow start and stop, like
732 * activating the CDC Ethernet altsetting.
733 */
734 #ifdef RNDIS_PM
735 update_linkstate:
736 #endif
737 retval = 0;
738 if (*params->filter) {
739 params->state = RNDIS_DATA_INITIALIZED;
740 netif_carrier_on(params->dev);
741 if (netif_running(params->dev))
742 netif_wake_queue (params->dev);
743 } else {
744 params->state = RNDIS_INITIALIZED;
745 netif_carrier_off (params->dev);
746 netif_stop_queue (params->dev);
747 }
748 break;
749
750 case OID_802_3_MULTICAST_LIST:
751 /* I think we can ignore this */
752 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
753 retval = 0;
754 break;
755 #if 0
756 case OID_GEN_RNDIS_CONFIG_PARAMETER:
757 {
758 struct rndis_config_parameter *param;
759 param = (struct rndis_config_parameter *) buf;
760 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
761 __FUNCTION__,
762 min(cpu_to_le32(param->ParameterNameLength),80),
763 buf + param->ParameterNameOffset);
764 retval = 0;
765 }
766 break;
767 #endif
768
769 #ifdef RNDIS_PM
770 case OID_PNP_SET_POWER:
771 /* The only real power state is USB suspend, and RNDIS requests
772 * can't enter it; this one isn't really about power. After
773 * resuming, Windows forces a reset, and then SET_POWER D0.
774 * FIXME ... then things go batty; Windows wedges itself.
775 */
776 i = le32_to_cpup((__force __le32 *)buf);
777 DEBUG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1);
778 switch (i) {
779 case NdisDeviceStateD0:
780 *params->filter = params->saved_filter;
781 goto update_linkstate;
782 case NdisDeviceStateD3:
783 case NdisDeviceStateD2:
784 case NdisDeviceStateD1:
785 params->saved_filter = *params->filter;
786 retval = 0;
787 break;
788 }
789 break;
790
791 #ifdef RNDIS_WAKEUP
792 // no wakeup support advertised, so wakeup OIDs always fail:
793 // - OID_PNP_ENABLE_WAKE_UP
794 // - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN
795 #endif
796
797 #endif /* RNDIS_PM */
798
799 default:
800 printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
801 __FUNCTION__, OID, buf_len);
802 }
803
804 return retval;
805 }
806
807 /*
808 * Response Functions
809 */
810
811 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
812 {
813 rndis_init_cmplt_type *resp;
814 rndis_resp_t *r;
815
816 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
817
818 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
819 if (!r)
820 return -ENOMEM;
821 resp = (rndis_init_cmplt_type *) r->buf;
822
823 resp->MessageType = __constant_cpu_to_le32 (
824 REMOTE_NDIS_INITIALIZE_CMPLT);
825 resp->MessageLength = __constant_cpu_to_le32 (52);
826 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
827 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
828 resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
829 resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
830 resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
831 resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
832 resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
833 resp->MaxTransferSize = cpu_to_le32 (
834 rndis_per_dev_params [configNr].dev->mtu
835 + sizeof (struct ethhdr)
836 + sizeof (struct rndis_packet_msg_type)
837 + 22);
838 resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
839 resp->AFListOffset = __constant_cpu_to_le32 (0);
840 resp->AFListSize = __constant_cpu_to_le32 (0);
841
842 if (rndis_per_dev_params [configNr].ack)
843 rndis_per_dev_params [configNr].ack (
844 rndis_per_dev_params [configNr].dev);
845
846 return 0;
847 }
848
849 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
850 {
851 rndis_query_cmplt_type *resp;
852 rndis_resp_t *r;
853
854 // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
855 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
856
857 /*
858 * we need more memory:
859 * oid_supported_list is the largest answer
860 */
861 r = rndis_add_response (configNr, sizeof (oid_supported_list));
862 if (!r)
863 return -ENOMEM;
864 resp = (rndis_query_cmplt_type *) r->buf;
865
866 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
867 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
868
869 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
870 le32_to_cpu(buf->InformationBufferOffset)
871 + 8 + (u8 *) buf,
872 le32_to_cpu(buf->InformationBufferLength),
873 r)) {
874 /* OID not supported */
875 resp->Status = __constant_cpu_to_le32 (
876 RNDIS_STATUS_NOT_SUPPORTED);
877 resp->MessageLength = __constant_cpu_to_le32 (sizeof *resp);
878 resp->InformationBufferLength = __constant_cpu_to_le32 (0);
879 resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
880 } else
881 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
882
883 if (rndis_per_dev_params [configNr].ack)
884 rndis_per_dev_params [configNr].ack (
885 rndis_per_dev_params [configNr].dev);
886 return 0;
887 }
888
889 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
890 {
891 u32 BufLength, BufOffset;
892 rndis_set_cmplt_type *resp;
893 rndis_resp_t *r;
894
895 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
896 if (!r)
897 return -ENOMEM;
898 resp = (rndis_set_cmplt_type *) r->buf;
899
900 BufLength = le32_to_cpu (buf->InformationBufferLength);
901 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
902
903 #ifdef VERBOSE
904 DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
905 DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
906 DEBUG("%s: InfoBuffer: ", __FUNCTION__);
907
908 for (i = 0; i < BufLength; i++) {
909 DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
910 }
911
912 DEBUG ("\n");
913 #endif
914
915 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
916 resp->MessageLength = __constant_cpu_to_le32 (16);
917 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
918 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
919 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
920 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
921 else resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
922
923 if (rndis_per_dev_params [configNr].ack)
924 rndis_per_dev_params [configNr].ack (
925 rndis_per_dev_params [configNr].dev);
926
927 return 0;
928 }
929
930 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
931 {
932 rndis_reset_cmplt_type *resp;
933 rndis_resp_t *r;
934
935 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
936 if (!r)
937 return -ENOMEM;
938 resp = (rndis_reset_cmplt_type *) r->buf;
939
940 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
941 resp->MessageLength = __constant_cpu_to_le32 (16);
942 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
943 /* resent information */
944 resp->AddressingReset = __constant_cpu_to_le32 (1);
945
946 if (rndis_per_dev_params [configNr].ack)
947 rndis_per_dev_params [configNr].ack (
948 rndis_per_dev_params [configNr].dev);
949
950 return 0;
951 }
952
953 static int rndis_keepalive_response (int configNr,
954 rndis_keepalive_msg_type *buf)
955 {
956 rndis_keepalive_cmplt_type *resp;
957 rndis_resp_t *r;
958
959 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
960
961 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
962 if (!r)
963 return -ENOMEM;
964 resp = (rndis_keepalive_cmplt_type *) r->buf;
965
966 resp->MessageType = __constant_cpu_to_le32 (
967 REMOTE_NDIS_KEEPALIVE_CMPLT);
968 resp->MessageLength = __constant_cpu_to_le32 (16);
969 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
970 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
971
972 if (rndis_per_dev_params [configNr].ack)
973 rndis_per_dev_params [configNr].ack (
974 rndis_per_dev_params [configNr].dev);
975
976 return 0;
977 }
978
979
980 /*
981 * Device to Host Comunication
982 */
983 static int rndis_indicate_status_msg (int configNr, u32 status)
984 {
985 rndis_indicate_status_msg_type *resp;
986 rndis_resp_t *r;
987
988 if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
989 return -ENOTSUPP;
990
991 r = rndis_add_response (configNr,
992 sizeof (rndis_indicate_status_msg_type));
993 if (!r)
994 return -ENOMEM;
995 resp = (rndis_indicate_status_msg_type *) r->buf;
996
997 resp->MessageType = __constant_cpu_to_le32 (
998 REMOTE_NDIS_INDICATE_STATUS_MSG);
999 resp->MessageLength = __constant_cpu_to_le32 (20);
1000 resp->Status = cpu_to_le32 (status);
1001 resp->StatusBufferLength = __constant_cpu_to_le32 (0);
1002 resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
1003
1004 if (rndis_per_dev_params [configNr].ack)
1005 rndis_per_dev_params [configNr].ack (
1006 rndis_per_dev_params [configNr].dev);
1007 return 0;
1008 }
1009
1010 int rndis_signal_connect (int configNr)
1011 {
1012 rndis_per_dev_params [configNr].media_state
1013 = NDIS_MEDIA_STATE_CONNECTED;
1014 return rndis_indicate_status_msg (configNr,
1015 RNDIS_STATUS_MEDIA_CONNECT);
1016 }
1017
1018 int rndis_signal_disconnect (int configNr)
1019 {
1020 rndis_per_dev_params [configNr].media_state
1021 = NDIS_MEDIA_STATE_DISCONNECTED;
1022 return rndis_indicate_status_msg (configNr,
1023 RNDIS_STATUS_MEDIA_DISCONNECT);
1024 }
1025
1026 void rndis_uninit (int configNr)
1027 {
1028 u8 *buf;
1029 u32 length;
1030
1031 if (configNr >= RNDIS_MAX_CONFIGS)
1032 return;
1033 rndis_per_dev_params [configNr].used = 0;
1034 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
1035
1036 /* drain the response queue */
1037 while ((buf = rndis_get_next_response(configNr, &length)))
1038 rndis_free_response(configNr, buf);
1039 }
1040
1041 void rndis_set_host_mac (int configNr, const u8 *addr)
1042 {
1043 rndis_per_dev_params [configNr].host_mac = addr;
1044 }
1045
1046 /*
1047 * Message Parser
1048 */
1049 int rndis_msg_parser (u8 configNr, u8 *buf)
1050 {
1051 u32 MsgType, MsgLength;
1052 __le32 *tmp;
1053 struct rndis_params *params;
1054
1055 if (!buf)
1056 return -ENOMEM;
1057
1058 tmp = (__le32 *) buf;
1059 MsgType = le32_to_cpup(tmp++);
1060 MsgLength = le32_to_cpup(tmp++);
1061
1062 if (configNr >= RNDIS_MAX_CONFIGS)
1063 return -ENOTSUPP;
1064 params = &rndis_per_dev_params [configNr];
1065
1066 /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
1067 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
1068 * and normal HC level polling to see if there's any IN traffic.
1069 */
1070
1071 /* For USB: responses may take up to 10 seconds */
1072 switch (MsgType) {
1073 case REMOTE_NDIS_INITIALIZE_MSG:
1074 DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1075 __FUNCTION__ );
1076 params->state = RNDIS_INITIALIZED;
1077 return rndis_init_response (configNr,
1078 (rndis_init_msg_type *) buf);
1079
1080 case REMOTE_NDIS_HALT_MSG:
1081 DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
1082 __FUNCTION__ );
1083 params->state = RNDIS_UNINITIALIZED;
1084 if (params->dev) {
1085 netif_carrier_off (params->dev);
1086 netif_stop_queue (params->dev);
1087 }
1088 return 0;
1089
1090 case REMOTE_NDIS_QUERY_MSG:
1091 return rndis_query_response (configNr,
1092 (rndis_query_msg_type *) buf);
1093
1094 case REMOTE_NDIS_SET_MSG:
1095 return rndis_set_response (configNr,
1096 (rndis_set_msg_type *) buf);
1097
1098 case REMOTE_NDIS_RESET_MSG:
1099 DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
1100 __FUNCTION__ );
1101 return rndis_reset_response (configNr,
1102 (rndis_reset_msg_type *) buf);
1103
1104 case REMOTE_NDIS_KEEPALIVE_MSG:
1105 /* For USB: host does this every 5 seconds */
1106 if (rndis_debug > 1)
1107 DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
1108 __FUNCTION__ );
1109 return rndis_keepalive_response (configNr,
1110 (rndis_keepalive_msg_type *)
1111 buf);
1112
1113 default:
1114 /* At least Windows XP emits some undefined RNDIS messages.
1115 * In one case those messages seemed to relate to the host
1116 * suspending itself.
1117 */
1118 printk (KERN_WARNING
1119 "%s: unknown RNDIS message 0x%08X len %d\n",
1120 __FUNCTION__ , MsgType, MsgLength);
1121 {
1122 unsigned i;
1123 for (i = 0; i < MsgLength; i += 16) {
1124 DEBUG ("%03d: "
1125 " %02x %02x %02x %02x"
1126 " %02x %02x %02x %02x"
1127 " %02x %02x %02x %02x"
1128 " %02x %02x %02x %02x"
1129 "\n",
1130 i,
1131 buf[i], buf [i+1],
1132 buf[i+2], buf[i+3],
1133 buf[i+4], buf [i+5],
1134 buf[i+6], buf[i+7],
1135 buf[i+8], buf [i+9],
1136 buf[i+10], buf[i+11],
1137 buf[i+12], buf [i+13],
1138 buf[i+14], buf[i+15]);
1139 }
1140 }
1141 break;
1142 }
1143
1144 return -ENOTSUPP;
1145 }
1146
1147 int rndis_register (int (* rndis_control_ack) (struct net_device *))
1148 {
1149 u8 i;
1150
1151 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1152 if (!rndis_per_dev_params [i].used) {
1153 rndis_per_dev_params [i].used = 1;
1154 rndis_per_dev_params [i].ack = rndis_control_ack;
1155 DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
1156 return i;
1157 }
1158 }
1159 DEBUG("failed\n");
1160
1161 return -1;
1162 }
1163
1164 void rndis_deregister (int configNr)
1165 {
1166 DEBUG("%s: \n", __FUNCTION__ );
1167
1168 if (configNr >= RNDIS_MAX_CONFIGS) return;
1169 rndis_per_dev_params [configNr].used = 0;
1170
1171 return;
1172 }
1173
1174 int rndis_set_param_dev (u8 configNr, struct net_device *dev,
1175 struct net_device_stats *stats,
1176 u16 *cdc_filter)
1177 {
1178 DEBUG("%s:\n", __FUNCTION__ );
1179 if (!dev || !stats) return -1;
1180 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1181
1182 rndis_per_dev_params [configNr].dev = dev;
1183 rndis_per_dev_params [configNr].stats = stats;
1184 rndis_per_dev_params [configNr].filter = cdc_filter;
1185
1186 return 0;
1187 }
1188
1189 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1190 {
1191 DEBUG("%s:\n", __FUNCTION__ );
1192 if (!vendorDescr) return -1;
1193 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1194
1195 rndis_per_dev_params [configNr].vendorID = vendorID;
1196 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
1197
1198 return 0;
1199 }
1200
1201 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1202 {
1203 DEBUG("%s: %u %u\n", __FUNCTION__, medium, speed);
1204 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1205
1206 rndis_per_dev_params [configNr].medium = medium;
1207 rndis_per_dev_params [configNr].speed = speed;
1208
1209 return 0;
1210 }
1211
1212 void rndis_add_hdr (struct sk_buff *skb)
1213 {
1214 struct rndis_packet_msg_type *header;
1215
1216 if (!skb)
1217 return;
1218 header = (void *) skb_push (skb, sizeof *header);
1219 memset (header, 0, sizeof *header);
1220 header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
1221 header->MessageLength = cpu_to_le32(skb->len);
1222 header->DataOffset = __constant_cpu_to_le32 (36);
1223 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
1224 }
1225
1226 void rndis_free_response (int configNr, u8 *buf)
1227 {
1228 rndis_resp_t *r;
1229 struct list_head *act, *tmp;
1230
1231 list_for_each_safe (act, tmp,
1232 &(rndis_per_dev_params [configNr].resp_queue))
1233 {
1234 r = list_entry (act, rndis_resp_t, list);
1235 if (r && r->buf == buf) {
1236 list_del (&r->list);
1237 kfree (r);
1238 }
1239 }
1240 }
1241
1242 u8 *rndis_get_next_response (int configNr, u32 *length)
1243 {
1244 rndis_resp_t *r;
1245 struct list_head *act, *tmp;
1246
1247 if (!length) return NULL;
1248
1249 list_for_each_safe (act, tmp,
1250 &(rndis_per_dev_params [configNr].resp_queue))
1251 {
1252 r = list_entry (act, rndis_resp_t, list);
1253 if (!r->send) {
1254 r->send = 1;
1255 *length = r->length;
1256 return r->buf;
1257 }
1258 }
1259
1260 return NULL;
1261 }
1262
1263 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1264 {
1265 rndis_resp_t *r;
1266
1267 /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
1268 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1269 if (!r) return NULL;
1270
1271 r->buf = (u8 *) (r + 1);
1272 r->length = length;
1273 r->send = 0;
1274
1275 list_add_tail (&r->list,
1276 &(rndis_per_dev_params [configNr].resp_queue));
1277 return r;
1278 }
1279
1280 int rndis_rm_hdr(struct sk_buff *skb)
1281 {
1282 /* tmp points to a struct rndis_packet_msg_type */
1283 __le32 *tmp = (void *) skb->data;
1284
1285 /* MessageType, MessageLength */
1286 if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1287 != get_unaligned(tmp++))
1288 return -EINVAL;
1289 tmp++;
1290
1291 /* DataOffset, DataLength */
1292 if (!skb_pull(skb, le32_to_cpu(get_unaligned(tmp++))
1293 + 8 /* offset of DataOffset */))
1294 return -EOVERFLOW;
1295 skb_trim(skb, le32_to_cpu(get_unaligned(tmp++)));
1296
1297 return 0;
1298 }
1299
1300 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1301
1302 static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1303 void *data)
1304 {
1305 char *out = page;
1306 int len;
1307 rndis_params *param = (rndis_params *) data;
1308
1309 out += snprintf (out, count,
1310 "Config Nr. %d\n"
1311 "used : %s\n"
1312 "state : %s\n"
1313 "medium : 0x%08X\n"
1314 "speed : %d\n"
1315 "cable : %s\n"
1316 "vendor ID : 0x%08X\n"
1317 "vendor : %s\n",
1318 param->confignr, (param->used) ? "y" : "n",
1319 ({ char *s = "?";
1320 switch (param->state) {
1321 case RNDIS_UNINITIALIZED:
1322 s = "RNDIS_UNINITIALIZED"; break;
1323 case RNDIS_INITIALIZED:
1324 s = "RNDIS_INITIALIZED"; break;
1325 case RNDIS_DATA_INITIALIZED:
1326 s = "RNDIS_DATA_INITIALIZED"; break;
1327 }; s; }),
1328 param->medium,
1329 (param->media_state) ? 0 : param->speed*100,
1330 (param->media_state) ? "disconnected" : "connected",
1331 param->vendorID, param->vendorDescr);
1332
1333 len = out - page;
1334 len -= off;
1335
1336 if (len < count) {
1337 *eof = 1;
1338 if (len <= 0)
1339 return 0;
1340 } else
1341 len = count;
1342
1343 *start = page + off;
1344 return len;
1345 }
1346
1347 static int rndis_proc_write (struct file *file, const char __user *buffer,
1348 unsigned long count, void *data)
1349 {
1350 rndis_params *p = data;
1351 u32 speed = 0;
1352 int i, fl_speed = 0;
1353
1354 for (i = 0; i < count; i++) {
1355 char c;
1356 if (get_user(c, buffer))
1357 return -EFAULT;
1358 switch (c) {
1359 case '0':
1360 case '1':
1361 case '2':
1362 case '3':
1363 case '4':
1364 case '5':
1365 case '6':
1366 case '7':
1367 case '8':
1368 case '9':
1369 fl_speed = 1;
1370 speed = speed*10 + c - '0';
1371 break;
1372 case 'C':
1373 case 'c':
1374 rndis_signal_connect (p->confignr);
1375 break;
1376 case 'D':
1377 case 'd':
1378 rndis_signal_disconnect(p->confignr);
1379 break;
1380 default:
1381 if (fl_speed) p->speed = speed;
1382 else DEBUG ("%c is not valid\n", c);
1383 break;
1384 }
1385
1386 buffer++;
1387 }
1388
1389 return count;
1390 }
1391
1392 #define NAME_TEMPLATE "driver/rndis-%03d"
1393
1394 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1395
1396 #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1397
1398
1399 int __init rndis_init (void)
1400 {
1401 u8 i;
1402
1403 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1404 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1405 char name [20];
1406
1407 sprintf (name, NAME_TEMPLATE, i);
1408 if (!(rndis_connect_state [i]
1409 = create_proc_entry (name, 0660, NULL)))
1410 {
1411 DEBUG ("%s :remove entries", __FUNCTION__);
1412 while (i) {
1413 sprintf (name, NAME_TEMPLATE, --i);
1414 remove_proc_entry (name, NULL);
1415 }
1416 DEBUG ("\n");
1417 return -EIO;
1418 }
1419
1420 rndis_connect_state [i]->nlink = 1;
1421 rndis_connect_state [i]->write_proc = rndis_proc_write;
1422 rndis_connect_state [i]->read_proc = rndis_proc_read;
1423 rndis_connect_state [i]->data = (void *)
1424 (rndis_per_dev_params + i);
1425 #endif
1426 rndis_per_dev_params [i].confignr = i;
1427 rndis_per_dev_params [i].used = 0;
1428 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1429 rndis_per_dev_params [i].media_state
1430 = NDIS_MEDIA_STATE_DISCONNECTED;
1431 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1432 }
1433
1434 return 0;
1435 }
1436
1437 void rndis_exit (void)
1438 {
1439 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1440 u8 i;
1441 char name [20];
1442
1443 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1444 sprintf (name, NAME_TEMPLATE, i);
1445 remove_proc_entry (name, NULL);
1446 }
1447 #endif
1448 }
1449
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