]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blame - drivers/usb/gadget/rndis.c
projects / mirror_ubuntu-jammy-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Remove obsolete #include <linux/config.h>
[mirror_ubuntu-jammy-kernel.git] / drivers / usb / gadget / rndis.c
CommitLineData
7e27f18c 1/*
1da177e4 2 * RNDIS MSG parser
7e27f18c 3 *
1da177e4 4 * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
7e27f18c 5 *
1da177e4 6 * Authors: Benedikt Spranger, Pengutronix
7e27f18c
DB		 7 * Robert Schwebel, Pengutronix
8 *
1da177e4
LT		 9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
7e27f18c
DB		 11 * version 2, as published by the Free Software Foundation.
12 *
1da177e4
LT		 13 * This software was originally developed in conformance with
14 * Microsoft's Remote NDIS Specification License Agreement.
7e27f18c 15 *
1da177e4
LT		 16 * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
17 * Fixed message length bug in init_response
7e27f18c 18 *
1da177e4 19 * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
7e27f18c 20 * Fixed rndis_rm_hdr length bug.
1da177e4
LT		 21 *
22 * Copyright (C) 2004 by David Brownell
23 * updates to merge with Linux 2.6, better match RNDIS spec
24 */
25
1da177e4
LT		 26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/kernel.h>
29#include <linux/errno.h>
1da177e4
LT		 30#include <linux/init.h>
31#include <linux/list.h>
32#include <linux/proc_fs.h>
33#include <linux/netdevice.h>
34
35#include <asm/io.h>
36#include <asm/byteorder.h>
37#include <asm/system.h>
6cdee106 38#include <asm/unaligned.h>
1da177e4
LT		 39
40
41#undef RNDIS_PM
340600ab 42#undef RNDIS_WAKEUP
1da177e4
LT		 43#undef VERBOSE
44
45#include "rndis.h"
46
47
48/* The driver for your USB chip needs to support ep0 OUT to work with
49 * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
50 *
51 * Windows hosts need an INF file like Documentation/usb/linux.inf
52 * and will be happier if you provide the host_addr module parameter.
53 */
54
55#if 0
56#define DEBUG(str,args...) do { \
57 if (rndis_debug) \
58 printk(KERN_DEBUG str , ## args ); \
59 } while (0)
60static int rndis_debug = 0;
61
340600ab 62module_param (rndis_debug, int, 0);
1da177e4
LT		 63MODULE_PARM_DESC (rndis_debug, "enable debugging");
64
65#else
66
67#define rndis_debug 0
68#define DEBUG(str,args...) do{}while(0)
69#endif
70
71#define RNDIS_MAX_CONFIGS 1
72
73
74static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
75
76/* Driver Version */
77static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
78
79/* Function Prototypes */
1da177e4
LT		 80static rndis_resp_t *rndis_add_response (int configNr, u32 length);
81
82
340600ab 83/* supported OIDs */
7e27f18c 84static const u32 oid_supported_list [] =
340600ab
DB		 85{
86 /* the general stuff */
87 OID_GEN_SUPPORTED_LIST,
88 OID_GEN_HARDWARE_STATUS,
89 OID_GEN_MEDIA_SUPPORTED,
90 OID_GEN_MEDIA_IN_USE,
91 OID_GEN_MAXIMUM_FRAME_SIZE,
92 OID_GEN_LINK_SPEED,
93 OID_GEN_TRANSMIT_BLOCK_SIZE,
94 OID_GEN_RECEIVE_BLOCK_SIZE,
95 OID_GEN_VENDOR_ID,
96 OID_GEN_VENDOR_DESCRIPTION,
97 OID_GEN_VENDOR_DRIVER_VERSION,
98 OID_GEN_CURRENT_PACKET_FILTER,
99 OID_GEN_MAXIMUM_TOTAL_SIZE,
100 OID_GEN_MEDIA_CONNECT_STATUS,
101 OID_GEN_PHYSICAL_MEDIUM,
102#if 0
103 OID_GEN_RNDIS_CONFIG_PARAMETER,
104#endif
7e27f18c 105
340600ab
DB		 106 /* the statistical stuff */
107 OID_GEN_XMIT_OK,
108 OID_GEN_RCV_OK,
109 OID_GEN_XMIT_ERROR,
110 OID_GEN_RCV_ERROR,
111 OID_GEN_RCV_NO_BUFFER,
112#ifdef RNDIS_OPTIONAL_STATS
113 OID_GEN_DIRECTED_BYTES_XMIT,
114 OID_GEN_DIRECTED_FRAMES_XMIT,
115 OID_GEN_MULTICAST_BYTES_XMIT,
116 OID_GEN_MULTICAST_FRAMES_XMIT,
117 OID_GEN_BROADCAST_BYTES_XMIT,
118 OID_GEN_BROADCAST_FRAMES_XMIT,
119 OID_GEN_DIRECTED_BYTES_RCV,
120 OID_GEN_DIRECTED_FRAMES_RCV,
121 OID_GEN_MULTICAST_BYTES_RCV,
122 OID_GEN_MULTICAST_FRAMES_RCV,
123 OID_GEN_BROADCAST_BYTES_RCV,
124 OID_GEN_BROADCAST_FRAMES_RCV,
125 OID_GEN_RCV_CRC_ERROR,
126 OID_GEN_TRANSMIT_QUEUE_LENGTH,
127#endif /* RNDIS_OPTIONAL_STATS */
128
7e27f18c 129 /* mandatory 802.3 */
340600ab
DB		 130 /* the general stuff */
131 OID_802_3_PERMANENT_ADDRESS,
132 OID_802_3_CURRENT_ADDRESS,
133 OID_802_3_MULTICAST_LIST,
134 OID_802_3_MAC_OPTIONS,
135 OID_802_3_MAXIMUM_LIST_SIZE,
7e27f18c 136
340600ab
DB		 137 /* the statistical stuff */
138 OID_802_3_RCV_ERROR_ALIGNMENT,
139 OID_802_3_XMIT_ONE_COLLISION,
140 OID_802_3_XMIT_MORE_COLLISIONS,
141#ifdef RNDIS_OPTIONAL_STATS
142 OID_802_3_XMIT_DEFERRED,
143 OID_802_3_XMIT_MAX_COLLISIONS,
144 OID_802_3_RCV_OVERRUN,
145 OID_802_3_XMIT_UNDERRUN,
146 OID_802_3_XMIT_HEARTBEAT_FAILURE,
147 OID_802_3_XMIT_TIMES_CRS_LOST,
148 OID_802_3_XMIT_LATE_COLLISIONS,
149#endif /* RNDIS_OPTIONAL_STATS */
150
151#ifdef RNDIS_PM
152 /* PM and wakeup are mandatory for USB: */
153
154 /* power management */
155 OID_PNP_CAPABILITIES,
156 OID_PNP_QUERY_POWER,
157 OID_PNP_SET_POWER,
158
159#ifdef RNDIS_WAKEUP
160 /* wake up host */
161 OID_PNP_ENABLE_WAKE_UP,
162 OID_PNP_ADD_WAKE_UP_PATTERN,
163 OID_PNP_REMOVE_WAKE_UP_PATTERN,
164#endif /* RNDIS_WAKEUP */
165#endif /* RNDIS_PM */
166};
167
168
1da177e4 169/* NDIS Functions */
340600ab
DB		 170static int
171gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
172 rndis_resp_t *r)
1da177e4 173{
7e27f18c
DB		 174 int retval = -ENOTSUPP;
175 u32 length = 4; /* usually */
340600ab 176 __le32 *outbuf;
1da177e4
LT		 177 int i, count;
178 rndis_query_cmplt_type *resp;
179
180 if (!r) return -ENOMEM;
181 resp = (rndis_query_cmplt_type *) r->buf;
182
183 if (!resp) return -ENOMEM;
340600ab
DB		 184
185 if (buf_len && rndis_debug > 1) {
186 DEBUG("query OID %08x value, len %d:\n", OID, buf_len);
187 for (i = 0; i < buf_len; i += 16) {
188 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
189 le32_to_cpup((__le32 *)&buf[i]),
190 le32_to_cpup((__le32 *)&buf[i + 4]),
191 le32_to_cpup((__le32 *)&buf[i + 8]),
192 le32_to_cpup((__le32 *)&buf[i + 12]));
193 }
194 }
195
196 /* response goes here, right after the header */
197 outbuf = (__le32 *) &resp[1];
198 resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
199
1da177e4
LT		 200 switch (OID) {
201
202 /* general oids (table 4-1) */
203
204 /* mandatory */
205 case OID_GEN_SUPPORTED_LIST:
206 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
207 length = sizeof (oid_supported_list);
208 count = length / sizeof (u32);
1da177e4 209 for (i = 0; i < count; i++)
340600ab 210 outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
1da177e4
LT		 211 retval = 0;
212 break;
7e27f18c 213
1da177e4
LT		 214 /* mandatory */
215 case OID_GEN_HARDWARE_STATUS:
216 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
7e27f18c 217 /* Bogus question!
1da177e4 218 * Hardware must be ready to receive high level protocols.
7e27f18c 219 * BTW:
1da177e4
LT		 220 * reddite ergo quae sunt Caesaris Caesari
221 * et quae sunt Dei Deo!
222 */
340600ab 223 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 224 retval = 0;
225 break;
7e27f18c 226
1da177e4
LT		 227 /* mandatory */
228 case OID_GEN_MEDIA_SUPPORTED:
229 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
340600ab 230 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
1da177e4
LT		 231 retval = 0;
232 break;
7e27f18c 233
1da177e4
LT		 234 /* mandatory */
235 case OID_GEN_MEDIA_IN_USE:
236 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
1da177e4 237 /* one medium, one transport... (maybe you do it better) */
340600ab 238 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
1da177e4
LT		 239 retval = 0;
240 break;
7e27f18c 241
1da177e4
LT		 242 /* mandatory */
243 case OID_GEN_MAXIMUM_FRAME_SIZE:
244 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
245 if (rndis_per_dev_params [configNr].dev) {
340600ab 246 *outbuf = cpu_to_le32 (
1da177e4
LT		 247 rndis_per_dev_params [configNr].dev->mtu);
248 retval = 0;
1da177e4
LT		 249 }
250 break;
7e27f18c 251
1da177e4
LT		 252 /* mandatory */
253 case OID_GEN_LINK_SPEED:
340600ab
DB		 254 if (rndis_debug > 1)
255 DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
1da177e4 256 if (rndis_per_dev_params [configNr].media_state
340600ab
DB		 257 == NDIS_MEDIA_STATE_DISCONNECTED)
258 *outbuf = __constant_cpu_to_le32 (0);
1da177e4 259 else
340600ab 260 *outbuf = cpu_to_le32 (
1da177e4
LT		 261 rndis_per_dev_params [configNr].speed);
262 retval = 0;
263 break;
264
265 /* mandatory */
266 case OID_GEN_TRANSMIT_BLOCK_SIZE:
267 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
268 if (rndis_per_dev_params [configNr].dev) {
340600ab 269 *outbuf = cpu_to_le32 (
1da177e4
LT		 270 rndis_per_dev_params [configNr].dev->mtu);
271 retval = 0;
272 }
273 break;
7e27f18c 274
1da177e4
LT		 275 /* mandatory */
276 case OID_GEN_RECEIVE_BLOCK_SIZE:
277 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
278 if (rndis_per_dev_params [configNr].dev) {
340600ab 279 *outbuf = cpu_to_le32 (
1da177e4
LT		 280 rndis_per_dev_params [configNr].dev->mtu);
281 retval = 0;
282 }
283 break;
7e27f18c 284
1da177e4
LT		 285 /* mandatory */
286 case OID_GEN_VENDOR_ID:
287 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
340600ab 288 *outbuf = cpu_to_le32 (
1da177e4
LT		 289 rndis_per_dev_params [configNr].vendorID);
290 retval = 0;
291 break;
7e27f18c 292
1da177e4
LT		 293 /* mandatory */
294 case OID_GEN_VENDOR_DESCRIPTION:
295 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
296 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
340600ab 297 memcpy (outbuf,
1da177e4
LT		 298 rndis_per_dev_params [configNr].vendorDescr, length);
299 retval = 0;
300 break;
301
302 case OID_GEN_VENDOR_DRIVER_VERSION:
303 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
1da177e4 304 /* Created as LE */
340600ab 305 *outbuf = rndis_driver_version;
1da177e4
LT		 306 retval = 0;
307 break;
308
309 /* mandatory */
310 case OID_GEN_CURRENT_PACKET_FILTER:
311 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
340600ab 312 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
1da177e4
LT		 313 retval = 0;
314 break;
315
316 /* mandatory */
317 case OID_GEN_MAXIMUM_TOTAL_SIZE:
318 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
340600ab 319 *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
1da177e4
LT		 320 retval = 0;
321 break;
322
323 /* mandatory */
324 case OID_GEN_MEDIA_CONNECT_STATUS:
340600ab
DB		 325 if (rndis_debug > 1)
326 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
327 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 328 .media_state);
329 retval = 0;
330 break;
331
332 case OID_GEN_PHYSICAL_MEDIUM:
333 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
340600ab 334 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 335 retval = 0;
336 break;
337
338 /* The RNDIS specification is incomplete/wrong. Some versions
339 * of MS-Windows expect OIDs that aren't specified there. Other
340 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
341 */
342 case OID_GEN_MAC_OPTIONS: /* from WinME */
343 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
340600ab 344 *outbuf = __constant_cpu_to_le32(
1da177e4
LT		 345 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
346 | NDIS_MAC_OPTION_FULL_DUPLEX);
347 retval = 0;
348 break;
349
350 /* statistics OIDs (table 4-2) */
351
352 /* mandatory */
353 case OID_GEN_XMIT_OK:
340600ab
DB		 354 if (rndis_debug > 1)
355 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
1da177e4 356 if (rndis_per_dev_params [configNr].stats) {
340600ab 357 *outbuf = cpu_to_le32 (
7e27f18c 358 rndis_per_dev_params [configNr].stats->tx_packets -
1da177e4
LT		 359 rndis_per_dev_params [configNr].stats->tx_errors -
360 rndis_per_dev_params [configNr].stats->tx_dropped);
361 retval = 0;
1da177e4
LT		 362 }
363 break;
364
365 /* mandatory */
366 case OID_GEN_RCV_OK:
340600ab
DB		 367 if (rndis_debug > 1)
368 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
1da177e4 369 if (rndis_per_dev_params [configNr].stats) {
340600ab 370 *outbuf = cpu_to_le32 (
7e27f18c 371 rndis_per_dev_params [configNr].stats->rx_packets -
1da177e4
LT		 372 rndis_per_dev_params [configNr].stats->rx_errors -
373 rndis_per_dev_params [configNr].stats->rx_dropped);
374 retval = 0;
1da177e4
LT		 375 }
376 break;
7e27f18c 377
1da177e4
LT		 378 /* mandatory */
379 case OID_GEN_XMIT_ERROR:
340600ab
DB		 380 if (rndis_debug > 1)
381 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
1da177e4 382 if (rndis_per_dev_params [configNr].stats) {
340600ab 383 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 384 .stats->tx_errors);
385 retval = 0;
1da177e4
LT		 386 }
387 break;
7e27f18c 388
1da177e4
LT		 389 /* mandatory */
390 case OID_GEN_RCV_ERROR:
340600ab
DB		 391 if (rndis_debug > 1)
392 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
1da177e4 393 if (rndis_per_dev_params [configNr].stats) {
340600ab 394 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 395 .stats->rx_errors);
396 retval = 0;
1da177e4
LT		 397 }
398 break;
7e27f18c 399
1da177e4
LT		 400 /* mandatory */
401 case OID_GEN_RCV_NO_BUFFER:
402 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
403 if (rndis_per_dev_params [configNr].stats) {
340600ab 404 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 405 .stats->rx_dropped);
406 retval = 0;
1da177e4
LT		 407 }
408 break;
409
410#ifdef RNDIS_OPTIONAL_STATS
411 case OID_GEN_DIRECTED_BYTES_XMIT:
412 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
7e27f18c 413 /*
1da177e4
LT		 414 * Aunt Tilly's size of shoes
415 * minus antarctica count of penguins
416 * divided by weight of Alpha Centauri
417 */
418 if (rndis_per_dev_params [configNr].stats) {
340600ab 419 *outbuf = cpu_to_le32 (
1da177e4 420 (rndis_per_dev_params [configNr]
7e27f18c 421 .stats->tx_packets -
1da177e4
LT		 422 rndis_per_dev_params [configNr]
423 .stats->tx_errors -
424 rndis_per_dev_params [configNr]
425 .stats->tx_dropped)
426 * 123);
427 retval = 0;
1da177e4
LT		 428 }
429 break;
7e27f18c 430
1da177e4
LT		 431 case OID_GEN_DIRECTED_FRAMES_XMIT:
432 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
433 /* dito */
434 if (rndis_per_dev_params [configNr].stats) {
340600ab 435 *outbuf = cpu_to_le32 (
1da177e4 436 (rndis_per_dev_params [configNr]
7e27f18c 437 .stats->tx_packets -
1da177e4
LT		 438 rndis_per_dev_params [configNr]
439 .stats->tx_errors -
440 rndis_per_dev_params [configNr]
441 .stats->tx_dropped)
442 / 123);
443 retval = 0;
1da177e4
LT		 444 }
445 break;
7e27f18c 446
1da177e4
LT		 447 case OID_GEN_MULTICAST_BYTES_XMIT:
448 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
449 if (rndis_per_dev_params [configNr].stats) {
340600ab 450 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 451 .stats->multicast*1234);
452 retval = 0;
1da177e4
LT		 453 }
454 break;
7e27f18c 455
1da177e4
LT		 456 case OID_GEN_MULTICAST_FRAMES_XMIT:
457 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
458 if (rndis_per_dev_params [configNr].stats) {
340600ab 459 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 460 .stats->multicast);
461 retval = 0;
1da177e4
LT		 462 }
463 break;
7e27f18c 464
1da177e4
LT		 465 case OID_GEN_BROADCAST_BYTES_XMIT:
466 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
467 if (rndis_per_dev_params [configNr].stats) {
340600ab 468 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 469 .stats->tx_packets/42*255);
470 retval = 0;
1da177e4
LT		 471 }
472 break;
7e27f18c 473
1da177e4
LT		 474 case OID_GEN_BROADCAST_FRAMES_XMIT:
475 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
476 if (rndis_per_dev_params [configNr].stats) {
340600ab 477 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 478 .stats->tx_packets/42);
479 retval = 0;
1da177e4
LT		 480 }
481 break;
7e27f18c 482
1da177e4
LT		 483 case OID_GEN_DIRECTED_BYTES_RCV:
484 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
340600ab 485 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 486 retval = 0;
487 break;
7e27f18c 488
1da177e4
LT		 489 case OID_GEN_DIRECTED_FRAMES_RCV:
490 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
340600ab 491 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 492 retval = 0;
493 break;
7e27f18c 494
1da177e4
LT		 495 case OID_GEN_MULTICAST_BYTES_RCV:
496 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
497 if (rndis_per_dev_params [configNr].stats) {
340600ab 498 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 499 .stats->multicast * 1111);
500 retval = 0;
1da177e4
LT		 501 }
502 break;
7e27f18c 503
1da177e4
LT		 504 case OID_GEN_MULTICAST_FRAMES_RCV:
505 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
506 if (rndis_per_dev_params [configNr].stats) {
340600ab 507 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 508 .stats->multicast);
509 retval = 0;
1da177e4
LT		 510 }
511 break;
7e27f18c 512
1da177e4
LT		 513 case OID_GEN_BROADCAST_BYTES_RCV:
514 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
515 if (rndis_per_dev_params [configNr].stats) {
340600ab 516 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 517 .stats->rx_packets/42*255);
518 retval = 0;
1da177e4
LT		 519 }
520 break;
7e27f18c 521
1da177e4
LT		 522 case OID_GEN_BROADCAST_FRAMES_RCV:
523 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
524 if (rndis_per_dev_params [configNr].stats) {
340600ab 525 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 526 .stats->rx_packets/42);
527 retval = 0;
1da177e4
LT		 528 }
529 break;
7e27f18c 530
1da177e4
LT		 531 case OID_GEN_RCV_CRC_ERROR:
532 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
533 if (rndis_per_dev_params [configNr].stats) {
340600ab 534 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 535 .stats->rx_crc_errors);
536 retval = 0;
1da177e4
LT		 537 }
538 break;
7e27f18c 539
1da177e4
LT		 540 case OID_GEN_TRANSMIT_QUEUE_LENGTH:
541 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
340600ab 542 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 543 retval = 0;
544 break;
545#endif /* RNDIS_OPTIONAL_STATS */
546
547 /* ieee802.3 OIDs (table 4-3) */
548
549 /* mandatory */
550 case OID_802_3_PERMANENT_ADDRESS:
551 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
552 if (rndis_per_dev_params [configNr].dev) {
553 length = ETH_ALEN;
340600ab 554 memcpy (outbuf,
1da177e4
LT		 555 rndis_per_dev_params [configNr].host_mac,
556 length);
557 retval = 0;
1da177e4
LT		 558 }
559 break;
7e27f18c 560
1da177e4
LT		 561 /* mandatory */
562 case OID_802_3_CURRENT_ADDRESS:
563 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
564 if (rndis_per_dev_params [configNr].dev) {
565 length = ETH_ALEN;
340600ab 566 memcpy (outbuf,
1da177e4
LT		 567 rndis_per_dev_params [configNr].host_mac,
568 length);
569 retval = 0;
570 }
571 break;
7e27f18c 572
1da177e4
LT		 573 /* mandatory */
574 case OID_802_3_MULTICAST_LIST:
575 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
1da177e4 576 /* Multicast base address only */
340600ab 577 *outbuf = __constant_cpu_to_le32 (0xE0000000);
1da177e4
LT		 578 retval = 0;
579 break;
7e27f18c 580
1da177e4
LT		 581 /* mandatory */
582 case OID_802_3_MAXIMUM_LIST_SIZE:
583 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
1da177e4 584 /* Multicast base address only */
340600ab 585 *outbuf = __constant_cpu_to_le32 (1);
1da177e4
LT		 586 retval = 0;
587 break;
7e27f18c 588
1da177e4
LT		 589 case OID_802_3_MAC_OPTIONS:
590 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
591 break;
592
593 /* ieee802.3 statistics OIDs (table 4-4) */
594
595 /* mandatory */
596 case OID_802_3_RCV_ERROR_ALIGNMENT:
597 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
340600ab
DB		 598 if (rndis_per_dev_params [configNr].stats) {
599 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
1da177e4
LT		 600 .stats->rx_frame_errors);
601 retval = 0;
602 }
603 break;
7e27f18c 604
1da177e4
LT		 605 /* mandatory */
606 case OID_802_3_XMIT_ONE_COLLISION:
607 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
340600ab 608 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 609 retval = 0;
610 break;
7e27f18c 611
1da177e4
LT		 612 /* mandatory */
613 case OID_802_3_XMIT_MORE_COLLISIONS:
614 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
340600ab 615 *outbuf = __constant_cpu_to_le32 (0);
1da177e4
LT		 616 retval = 0;
617 break;
7e27f18c 618
1da177e4
LT		 619#ifdef RNDIS_OPTIONAL_STATS
620 case OID_802_3_XMIT_DEFERRED:
621 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
622 /* TODO */
623 break;
7e27f18c 624
1da177e4
LT		 625 case OID_802_3_XMIT_MAX_COLLISIONS:
626 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
627 /* TODO */
628 break;
7e27f18c 629
1da177e4
LT		 630 case OID_802_3_RCV_OVERRUN:
631 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
632 /* TODO */
633 break;
7e27f18c 634
1da177e4
LT		 635 case OID_802_3_XMIT_UNDERRUN:
636 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
637 /* TODO */
638 break;
7e27f18c 639
1da177e4
LT		 640 case OID_802_3_XMIT_HEARTBEAT_FAILURE:
641 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
642 /* TODO */
643 break;
7e27f18c 644
1da177e4
LT		 645 case OID_802_3_XMIT_TIMES_CRS_LOST:
646 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
647 /* TODO */
648 break;
7e27f18c 649
1da177e4
LT		 650 case OID_802_3_XMIT_LATE_COLLISIONS:
651 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
652 /* TODO */
7e27f18c 653 break;
1da177e4
LT		 654#endif /* RNDIS_OPTIONAL_STATS */
655
656#ifdef RNDIS_PM
657 /* power management OIDs (table 4-5) */
658 case OID_PNP_CAPABILITIES:
659 DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
660
340600ab 661 /* for now, no wakeup capabilities */
1da177e4 662 length = sizeof (struct NDIS_PNP_CAPABILITIES);
340600ab 663 memset(outbuf, 0, length);
1da177e4
LT		 664 retval = 0;
665 break;
666 case OID_PNP_QUERY_POWER:
340600ab
DB		 667 DEBUG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__,
668 le32_to_cpup((__le32 *) buf) - 1);
669 /* only suspend is a real power state, and
670 * it can't be entered by OID_PNP_SET_POWER...
671 */
672 length = 0;
1da177e4
LT		 673 retval = 0;
674 break;
675#endif
676
677 default:
7e27f18c 678 printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
1da177e4
LT		 679 __FUNCTION__, OID);
680 }
340600ab
DB		 681 if (retval < 0)
682 length = 0;
7e27f18c 683
1da177e4 684 resp->InformationBufferLength = cpu_to_le32 (length);
340600ab
DB		 685 r->length = length + sizeof *resp;
686 resp->MessageLength = cpu_to_le32 (r->length);
1da177e4
LT		 687 return retval;
688}
689
7e27f18c
DB		 690static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
691 rndis_resp_t *r)
1da177e4
LT		 692{
693 rndis_set_cmplt_type *resp;
7e27f18c 694 int i, retval = -ENOTSUPP;
1da177e4
LT		 695 struct rndis_params *params;
696
697 if (!r)
698 return -ENOMEM;
699 resp = (rndis_set_cmplt_type *) r->buf;
700 if (!resp)
701 return -ENOMEM;
702
340600ab
DB		 703 if (buf_len && rndis_debug > 1) {
704 DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
705 for (i = 0; i < buf_len; i += 16) {
706 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
707 le32_to_cpup((__le32 *)&buf[i]),
708 le32_to_cpup((__le32 *)&buf[i + 4]),
709 le32_to_cpup((__le32 *)&buf[i + 8]),
710 le32_to_cpup((__le32 *)&buf[i + 12]));
711 }
1da177e4
LT		 712 }
713
340600ab 714 params = &rndis_per_dev_params [configNr];
1da177e4
LT		 715 switch (OID) {
716 case OID_GEN_CURRENT_PACKET_FILTER:
1da177e4 717
340600ab
DB		 718 /* these NDIS_PACKET_TYPE_* bitflags are shared with
719 * cdc_filter; it's not RNDIS-specific
1da177e4
LT		 720 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
721 * PROMISCUOUS, DIRECTED,
722 * MULTICAST, ALL_MULTICAST, BROADCAST
723 */
340600ab 724 *params->filter = (u16) le32_to_cpup((__le32 *)buf);
1da177e4 725 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
340600ab 726 __FUNCTION__, *params->filter);
1da177e4
LT		 727
728 /* this call has a significant side effect: it's
729 * what makes the packet flow start and stop, like
730 * activating the CDC Ethernet altsetting.
731 */
340600ab
DB		 732#ifdef RNDIS_PM
733update_linkstate:
734#endif
735 retval = 0;
736 if (*params->filter) {
1da177e4
LT		 737 params->state = RNDIS_DATA_INITIALIZED;
738 netif_carrier_on(params->dev);
739 if (netif_running(params->dev))
740 netif_wake_queue (params->dev);
741 } else {
742 params->state = RNDIS_INITIALIZED;
743 netif_carrier_off (params->dev);
744 netif_stop_queue (params->dev);
745 }
746 break;
7e27f18c 747
1da177e4 748 case OID_802_3_MULTICAST_LIST:
7e27f18c 749 /* I think we can ignore this */
1da177e4
LT		 750 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
751 retval = 0;
752 break;
753#if 0
754 case OID_GEN_RNDIS_CONFIG_PARAMETER:
755 {
756 struct rndis_config_parameter *param;
757 param = (struct rndis_config_parameter *) buf;
758 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
759 __FUNCTION__,
760 min(cpu_to_le32(param->ParameterNameLength),80),
761 buf + param->ParameterNameOffset);
762 retval = 0;
763 }
764 break;
765#endif
766
767#ifdef RNDIS_PM
768 case OID_PNP_SET_POWER:
340600ab
DB		 769 /* The only real power state is USB suspend, and RNDIS requests
770 * can't enter it; this one isn't really about power. After
771 * resuming, Windows forces a reset, and then SET_POWER D0.
772 * FIXME ... then things go batty; Windows wedges itself.
773 */
774 i = le32_to_cpup((__force __le32 *)buf);
775 DEBUG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1);
776 switch (i) {
777 case NdisDeviceStateD0:
778 *params->filter = params->saved_filter;
779 goto update_linkstate;
780 case NdisDeviceStateD3:
781 case NdisDeviceStateD2:
782 case NdisDeviceStateD1:
783 params->saved_filter = *params->filter;
784 retval = 0;
785 break;
786 }
1da177e4
LT		 787 break;
788
340600ab
DB		 789#ifdef RNDIS_WAKEUP
790 // no wakeup support advertised, so wakeup OIDs always fail:
791 // - OID_PNP_ENABLE_WAKE_UP
792 // - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN
1da177e4
LT		 793#endif
794
340600ab
DB		 795#endif /* RNDIS_PM */
796
1da177e4 797 default:
7e27f18c 798 printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
1da177e4
LT		 799 __FUNCTION__, OID, buf_len);
800 }
7e27f18c 801
1da177e4
LT		 802 return retval;
803}
804
7e27f18c
DB		 805/*
806 * Response Functions
1da177e4
LT		 807 */
808
809static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
810{
7e27f18c 811 rndis_init_cmplt_type *resp;
1da177e4 812 rndis_resp_t *r;
7e27f18c 813
1da177e4 814 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
7e27f18c 815
1da177e4 816 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
340600ab
DB		 817 if (!r)
818 return -ENOMEM;
1da177e4 819 resp = (rndis_init_cmplt_type *) r->buf;
7e27f18c 820
1da177e4
LT		 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);
7e27f18c 839
1da177e4 840 if (rndis_per_dev_params [configNr].ack)
7e27f18c
DB		 841 rndis_per_dev_params [configNr].ack (
842 rndis_per_dev_params [configNr].dev);
843
1da177e4
LT		 844 return 0;
845}
846
847static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
848{
849 rndis_query_cmplt_type *resp;
850 rndis_resp_t *r;
7e27f18c 851
1da177e4
LT		 852 // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
853 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
7e27f18c 854
8763716b
ST		 855 /*
856 * we need more memory:
857 * gen_ndis_query_resp expects enough space for
858 * rndis_query_cmplt_type followed by data.
859 * oid_supported_list is the largest data reply
1da177e4 860 */
8763716b
ST		 861 r = rndis_add_response (configNr,
862 sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
340600ab
DB		 863 if (!r)
864 return -ENOMEM;
1da177e4 865 resp = (rndis_query_cmplt_type *) r->buf;
7e27f18c 866
1da177e4 867 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
1da177e4 868 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
7e27f18c 869
340600ab
DB		 870 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
871 le32_to_cpu(buf->InformationBufferOffset)
872 + 8 + (u8 *) buf,
873 le32_to_cpu(buf->InformationBufferLength),
874 r)) {
1da177e4
LT		 875 /* OID not supported */
876 resp->Status = __constant_cpu_to_le32 (
877 RNDIS_STATUS_NOT_SUPPORTED);
340600ab 878 resp->MessageLength = __constant_cpu_to_le32 (sizeof *resp);
1da177e4
LT		 879 resp->InformationBufferLength = __constant_cpu_to_le32 (0);
880 resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
881 } else
882 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
7e27f18c 883
1da177e4 884 if (rndis_per_dev_params [configNr].ack)
7e27f18c
DB		 885 rndis_per_dev_params [configNr].ack (
886 rndis_per_dev_params [configNr].dev);
1da177e4
LT		 887 return 0;
888}
889
890static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
891{
892 u32 BufLength, BufOffset;
893 rndis_set_cmplt_type *resp;
894 rndis_resp_t *r;
7e27f18c 895
1da177e4 896 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
340600ab
DB		 897 if (!r)
898 return -ENOMEM;
1da177e4 899 resp = (rndis_set_cmplt_type *) r->buf;
1da177e4
LT		 900
901 BufLength = le32_to_cpu (buf->InformationBufferLength);
902 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
903
904#ifdef VERBOSE
905 DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
906 DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
907 DEBUG("%s: InfoBuffer: ", __FUNCTION__);
7e27f18c 908
1da177e4
LT		 909 for (i = 0; i < BufLength; i++) {
910 DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
911 }
7e27f18c 912
1da177e4
LT		 913 DEBUG ("\n");
914#endif
7e27f18c 915
1da177e4
LT		 916 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
917 resp->MessageLength = __constant_cpu_to_le32 (16);
918 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
7e27f18c
DB		 919 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
920 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
921 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
922 else
923 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
924
1da177e4 925 if (rndis_per_dev_params [configNr].ack)
7e27f18c
DB		 926 rndis_per_dev_params [configNr].ack (
927 rndis_per_dev_params [configNr].dev);
928
1da177e4
LT		 929 return 0;
930}
931
932static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
933{
934 rndis_reset_cmplt_type *resp;
935 rndis_resp_t *r;
7e27f18c 936
1da177e4 937 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
340600ab
DB		 938 if (!r)
939 return -ENOMEM;
1da177e4 940 resp = (rndis_reset_cmplt_type *) r->buf;
7e27f18c 941
1da177e4
LT		 942 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
943 resp->MessageLength = __constant_cpu_to_le32 (16);
944 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
945 /* resent information */
946 resp->AddressingReset = __constant_cpu_to_le32 (1);
7e27f18c 947
1da177e4 948 if (rndis_per_dev_params [configNr].ack)
7e27f18c
DB		 949 rndis_per_dev_params [configNr].ack (
950 rndis_per_dev_params [configNr].dev);
1da177e4
LT		 951
952 return 0;
953}
954
955static int rndis_keepalive_response (int configNr,
7e27f18c 956 rndis_keepalive_msg_type *buf)
1da177e4
LT		 957{
958 rndis_keepalive_cmplt_type *resp;
959 rndis_resp_t *r;
960
961 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
962
963 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
340600ab
DB		 964 if (!r)
965 return -ENOMEM;
1da177e4 966 resp = (rndis_keepalive_cmplt_type *) r->buf;
7e27f18c 967
1da177e4
LT		 968 resp->MessageType = __constant_cpu_to_le32 (
969 REMOTE_NDIS_KEEPALIVE_CMPLT);
970 resp->MessageLength = __constant_cpu_to_le32 (16);
971 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
972 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
7e27f18c 973
1da177e4 974 if (rndis_per_dev_params [configNr].ack)
7e27f18c
DB		 975 rndis_per_dev_params [configNr].ack (
976 rndis_per_dev_params [configNr].dev);
977
1da177e4
LT		 978 return 0;
979}
980
981
7e27f18c
DB		 982/*
983 * Device to Host Comunication
1da177e4
LT		 984 */
985static int rndis_indicate_status_msg (int configNr, u32 status)
986{
7e27f18c 987 rndis_indicate_status_msg_type *resp;
1da177e4 988 rndis_resp_t *r;
7e27f18c 989
1da177e4 990 if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
7e27f18c
DB		 991 return -ENOTSUPP;
992
993 r = rndis_add_response (configNr,
1da177e4 994 sizeof (rndis_indicate_status_msg_type));
340600ab
DB		 995 if (!r)
996 return -ENOMEM;
1da177e4 997 resp = (rndis_indicate_status_msg_type *) r->buf;
7e27f18c 998
1da177e4
LT		 999 resp->MessageType = __constant_cpu_to_le32 (
1000 REMOTE_NDIS_INDICATE_STATUS_MSG);
1001 resp->MessageLength = __constant_cpu_to_le32 (20);
1002 resp->Status = cpu_to_le32 (status);
1003 resp->StatusBufferLength = __constant_cpu_to_le32 (0);
1004 resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
7e27f18c
DB		 1005
1006 if (rndis_per_dev_params [configNr].ack)
1007 rndis_per_dev_params [configNr].ack (
1008 rndis_per_dev_params [configNr].dev);
1da177e4
LT		 1009 return 0;
1010}
1011
1012int rndis_signal_connect (int configNr)
1013{
1014 rndis_per_dev_params [configNr].media_state
1015 = NDIS_MEDIA_STATE_CONNECTED;
7e27f18c 1016 return rndis_indicate_status_msg (configNr,
1da177e4
LT		 1017 RNDIS_STATUS_MEDIA_CONNECT);
1018}
1019
1020int rndis_signal_disconnect (int configNr)
1021{
1022 rndis_per_dev_params [configNr].media_state
1023 = NDIS_MEDIA_STATE_DISCONNECTED;
1024 return rndis_indicate_status_msg (configNr,
1025 RNDIS_STATUS_MEDIA_DISCONNECT);
1026}
1027
340600ab
DB		 1028void rndis_uninit (int configNr)
1029{
486e2df6
DB		 1030 u8 *buf;
1031 u32 length;
1032
340600ab
DB		 1033 if (configNr >= RNDIS_MAX_CONFIGS)
1034 return;
1035 rndis_per_dev_params [configNr].used = 0;
1036 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
486e2df6
DB		 1037
1038 /* drain the response queue */
1039 while ((buf = rndis_get_next_response(configNr, &length)))
1040 rndis_free_response(configNr, buf);
340600ab
DB		 1041}
1042
1da177e4
LT		 1043void rndis_set_host_mac (int configNr, const u8 *addr)
1044{
1045 rndis_per_dev_params [configNr].host_mac = addr;
1046}
1047
7e27f18c
DB		 1048/*
1049 * Message Parser
1da177e4
LT		 1050 */
1051int rndis_msg_parser (u8 configNr, u8 *buf)
1052{
1053 u32 MsgType, MsgLength;
1054 __le32 *tmp;
1055 struct rndis_params *params;
7e27f18c 1056
1da177e4
LT		 1057 if (!buf)
1058 return -ENOMEM;
7e27f18c
DB		 1059
1060 tmp = (__le32 *) buf;
1da177e4
LT		 1061 MsgType = le32_to_cpup(tmp++);
1062 MsgLength = le32_to_cpup(tmp++);
7e27f18c 1063
1da177e4
LT		 1064 if (configNr >= RNDIS_MAX_CONFIGS)
1065 return -ENOTSUPP;
1066 params = &rndis_per_dev_params [configNr];
7e27f18c 1067
340600ab
DB		 1068 /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
1069 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
1070 * and normal HC level polling to see if there's any IN traffic.
1071 */
1072
1da177e4 1073 /* For USB: responses may take up to 10 seconds */
340600ab 1074 switch (MsgType) {
1da177e4 1075 case REMOTE_NDIS_INITIALIZE_MSG:
7e27f18c 1076 DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1da177e4
LT		 1077 __FUNCTION__ );
1078 params->state = RNDIS_INITIALIZED;
1079 return rndis_init_response (configNr,
7e27f18c
DB		 1080 (rndis_init_msg_type *) buf);
1081
1da177e4
LT		 1082 case REMOTE_NDIS_HALT_MSG:
1083 DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
1084 __FUNCTION__ );
1085 params->state = RNDIS_UNINITIALIZED;
1086 if (params->dev) {
1087 netif_carrier_off (params->dev);
1088 netif_stop_queue (params->dev);
1089 }
1090 return 0;
7e27f18c 1091
1da177e4 1092 case REMOTE_NDIS_QUERY_MSG:
7e27f18c
DB		 1093 return rndis_query_response (configNr,
1094 (rndis_query_msg_type *) buf);
1095
1da177e4 1096 case REMOTE_NDIS_SET_MSG:
7e27f18c
DB		 1097 return rndis_set_response (configNr,
1098 (rndis_set_msg_type *) buf);
1099
1da177e4 1100 case REMOTE_NDIS_RESET_MSG:
7e27f18c 1101 DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
1da177e4
LT		 1102 __FUNCTION__ );
1103 return rndis_reset_response (configNr,
7e27f18c 1104 (rndis_reset_msg_type *) buf);
1da177e4
LT		 1105
1106 case REMOTE_NDIS_KEEPALIVE_MSG:
1107 /* For USB: host does this every 5 seconds */
340600ab 1108 if (rndis_debug > 1)
7e27f18c 1109 DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
340600ab 1110 __FUNCTION__ );
1da177e4 1111 return rndis_keepalive_response (configNr,
7e27f18c 1112 (rndis_keepalive_msg_type *)
1da177e4 1113 buf);
7e27f18c
DB		 1114
1115 default:
1da177e4
LT		 1116 /* At least Windows XP emits some undefined RNDIS messages.
1117 * In one case those messages seemed to relate to the host
1118 * suspending itself.
1119 */
1120 printk (KERN_WARNING
7e27f18c 1121 "%s: unknown RNDIS message 0x%08X len %d\n",
1da177e4
LT		 1122 __FUNCTION__ , MsgType, MsgLength);
1123 {
1124 unsigned i;
1125 for (i = 0; i < MsgLength; i += 16) {
1126 DEBUG ("%03d: "
1127 " %02x %02x %02x %02x"
1128 " %02x %02x %02x %02x"
1129 " %02x %02x %02x %02x"
1130 " %02x %02x %02x %02x"
1131 "\n",
1132 i,
1133 buf[i], buf [i+1],
1134 buf[i+2], buf[i+3],
1135 buf[i+4], buf [i+5],
1136 buf[i+6], buf[i+7],
1137 buf[i+8], buf [i+9],
1138 buf[i+10], buf[i+11],
1139 buf[i+12], buf [i+13],
1140 buf[i+14], buf[i+15]);
1141 }
1142 }
1143 break;
1144 }
7e27f18c 1145
1da177e4
LT		 1146 return -ENOTSUPP;
1147}
1148
1149int rndis_register (int (* rndis_control_ack) (struct net_device *))
1150{
1151 u8 i;
7e27f18c 1152
1da177e4
LT		 1153 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1154 if (!rndis_per_dev_params [i].used) {
1155 rndis_per_dev_params [i].used = 1;
1156 rndis_per_dev_params [i].ack = rndis_control_ack;
1157 DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
1158 return i;
1159 }
1160 }
1161 DEBUG("failed\n");
7e27f18c 1162
1da177e4
LT		 1163 return -1;
1164}
1165
1166void rndis_deregister (int configNr)
1167{
1168 DEBUG("%s: \n", __FUNCTION__ );
7e27f18c 1169
1da177e4
LT		 1170 if (configNr >= RNDIS_MAX_CONFIGS) return;
1171 rndis_per_dev_params [configNr].used = 0;
7e27f18c 1172
1da177e4
LT		 1173 return;
1174}
1175
7e27f18c 1176int rndis_set_param_dev (u8 configNr, struct net_device *dev,
340600ab
DB		 1177 struct net_device_stats *stats,
1178 u16 *cdc_filter)
1da177e4
LT		 1179{
1180 DEBUG("%s:\n", __FUNCTION__ );
1181 if (!dev || !stats) return -1;
1182 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
7e27f18c 1183
1da177e4
LT		 1184 rndis_per_dev_params [configNr].dev = dev;
1185 rndis_per_dev_params [configNr].stats = stats;
340600ab 1186 rndis_per_dev_params [configNr].filter = cdc_filter;
7e27f18c 1187
1da177e4
LT		 1188 return 0;
1189}
1190
1191int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1192{
1193 DEBUG("%s:\n", __FUNCTION__ );
1194 if (!vendorDescr) return -1;
1195 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
7e27f18c 1196
1da177e4
LT		 1197 rndis_per_dev_params [configNr].vendorID = vendorID;
1198 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
7e27f18c 1199
1da177e4
LT		 1200 return 0;
1201}
1202
1203int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1204{
340600ab 1205 DEBUG("%s: %u %u\n", __FUNCTION__, medium, speed);
1da177e4 1206 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
7e27f18c 1207
1da177e4
LT		 1208 rndis_per_dev_params [configNr].medium = medium;
1209 rndis_per_dev_params [configNr].speed = speed;
7e27f18c 1210
1da177e4
LT		 1211 return 0;
1212}
1213
1214void rndis_add_hdr (struct sk_buff *skb)
1215{
1216 struct rndis_packet_msg_type *header;
1217
1218 if (!skb)
1219 return;
1220 header = (void *) skb_push (skb, sizeof *header);
1221 memset (header, 0, sizeof *header);
6cdee106 1222 header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
1da177e4
LT		 1223 header->MessageLength = cpu_to_le32(skb->len);
1224 header->DataOffset = __constant_cpu_to_le32 (36);
6cdee106 1225 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
1da177e4
LT		 1226}
1227
1228void rndis_free_response (int configNr, u8 *buf)
1229{
1230 rndis_resp_t *r;
1231 struct list_head *act, *tmp;
7e27f18c
DB		 1232
1233 list_for_each_safe (act, tmp,
1234 &(rndis_per_dev_params [configNr].resp_queue))
1da177e4
LT		 1235 {
1236 r = list_entry (act, rndis_resp_t, list);
1237 if (r && r->buf == buf) {
1238 list_del (&r->list);
1239 kfree (r);
1240 }
1241 }
1242}
1243
1244u8 *rndis_get_next_response (int configNr, u32 *length)
1245{
1246 rndis_resp_t *r;
7e27f18c
DB		 1247 struct list_head *act, *tmp;
1248
1da177e4 1249 if (!length) return NULL;
7e27f18c
DB		 1250
1251 list_for_each_safe (act, tmp,
1252 &(rndis_per_dev_params [configNr].resp_queue))
1da177e4
LT		 1253 {
1254 r = list_entry (act, rndis_resp_t, list);
1255 if (!r->send) {
1256 r->send = 1;
1257 *length = r->length;
1258 return r->buf;
1259 }
1260 }
7e27f18c 1261
1da177e4
LT		 1262 return NULL;
1263}
1264
1265static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1266{
1267 rndis_resp_t *r;
7e27f18c 1268
340600ab 1269 /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
1da177e4
LT		 1270 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1271 if (!r) return NULL;
7e27f18c 1272
1da177e4
LT		 1273 r->buf = (u8 *) (r + 1);
1274 r->length = length;
1275 r->send = 0;
7e27f18c
DB		 1276
1277 list_add_tail (&r->list,
1278 &(rndis_per_dev_params [configNr].resp_queue));
1da177e4
LT		 1279 return r;
1280}
1281
6cdee106 1282int rndis_rm_hdr(struct sk_buff *skb)
1da177e4 1283{
6cdee106
DB		 1284 /* tmp points to a struct rndis_packet_msg_type */
1285 __le32 *tmp = (void *) skb->data;
1da177e4 1286
6cdee106
DB		 1287 /* MessageType, MessageLength */
1288 if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1289 != get_unaligned(tmp++))
1290 return -EINVAL;
1291 tmp++;
1292
1293 /* DataOffset, DataLength */
1294 if (!skb_pull(skb, le32_to_cpu(get_unaligned(tmp++))
1295 + 8 /* offset of DataOffset */))
1296 return -EOVERFLOW;
1297 skb_trim(skb, le32_to_cpu(get_unaligned(tmp++)));
1da177e4 1298
1da177e4
LT		 1299 return 0;
1300}
1301
1302#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1303
7e27f18c
DB		 1304static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1305 void *data)
1da177e4
LT		 1306{
1307 char *out = page;
1308 int len;
1309 rndis_params *param = (rndis_params *) data;
7e27f18c
DB		 1310
1311 out += snprintf (out, count,
1da177e4
LT		 1312 "Config Nr. %d\n"
1313 "used : %s\n"
1314 "state : %s\n"
1315 "medium : 0x%08X\n"
1316 "speed : %d\n"
1317 "cable : %s\n"
1318 "vendor ID : 0x%08X\n"
7e27f18c
DB		 1319 "vendor : %s\n",
1320 param->confignr, (param->used) ? "y" : "n",
1da177e4
LT		 1321 ({ char *s = "?";
1322 switch (param->state) {
1323 case RNDIS_UNINITIALIZED:
1324 s = "RNDIS_UNINITIALIZED"; break;
1325 case RNDIS_INITIALIZED:
1326 s = "RNDIS_INITIALIZED"; break;
1327 case RNDIS_DATA_INITIALIZED:
1328 s = "RNDIS_DATA_INITIALIZED"; break;
1329 }; s; }),
7e27f18c
DB		 1330 param->medium,
1331 (param->media_state) ? 0 : param->speed*100,
1da177e4 1332 (param->media_state) ? "disconnected" : "connected",
7e27f18c
DB		 1333 param->vendorID, param->vendorDescr);
1334
1da177e4
LT		 1335 len = out - page;
1336 len -= off;
7e27f18c 1337
1da177e4
LT		 1338 if (len < count) {
1339 *eof = 1;
1340 if (len <= 0)
1341 return 0;
1342 } else
1343 len = count;
7e27f18c 1344
1da177e4
LT		 1345 *start = page + off;
1346 return len;
1347}
1348
7e27f18c
DB		 1349static int rndis_proc_write (struct file *file, const char __user *buffer,
1350 unsigned long count, void *data)
1da177e4
LT		 1351{
1352 rndis_params *p = data;
1353 u32 speed = 0;
1354 int i, fl_speed = 0;
7e27f18c 1355
1da177e4
LT		 1356 for (i = 0; i < count; i++) {
1357 char c;
1358 if (get_user(c, buffer))
1359 return -EFAULT;
1360 switch (c) {
1361 case '0':
1362 case '1':
1363 case '2':
1364 case '3':
1365 case '4':
1366 case '5':
1367 case '6':
1368 case '7':
1369 case '8':
1370 case '9':
1371 fl_speed = 1;
1372 speed = speed*10 + c - '0';
1373 break;
1374 case 'C':
1375 case 'c':
1376 rndis_signal_connect (p->confignr);
1377 break;
1378 case 'D':
1379 case 'd':
1380 rndis_signal_disconnect(p->confignr);
1381 break;
7e27f18c 1382 default:
1da177e4
LT		 1383 if (fl_speed) p->speed = speed;
1384 else DEBUG ("%c is not valid\n", c);
1385 break;
1386 }
7e27f18c 1387
1da177e4
LT		 1388 buffer++;
1389 }
7e27f18c 1390
1da177e4
LT		 1391 return count;
1392}
1393
1394#define NAME_TEMPLATE "driver/rndis-%03d"
1395
1396static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1397
1398#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1399
1400
1401int __init rndis_init (void)
1402{
1403 u8 i;
1404
1405 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1406#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1407 char name [20];
1408
1409 sprintf (name, NAME_TEMPLATE, i);
1410 if (!(rndis_connect_state [i]
7e27f18c 1411 = create_proc_entry (name, 0660, NULL)))
1da177e4
LT		 1412 {
1413 DEBUG ("%s :remove entries", __FUNCTION__);
1414 while (i) {
1415 sprintf (name, NAME_TEMPLATE, --i);
1416 remove_proc_entry (name, NULL);
1417 }
1418 DEBUG ("\n");
1419 return -EIO;
1420 }
1421
1422 rndis_connect_state [i]->nlink = 1;
1423 rndis_connect_state [i]->write_proc = rndis_proc_write;
1424 rndis_connect_state [i]->read_proc = rndis_proc_read;
1425 rndis_connect_state [i]->data = (void *)
1426 (rndis_per_dev_params + i);
1427#endif
1428 rndis_per_dev_params [i].confignr = i;
1429 rndis_per_dev_params [i].used = 0;
1430 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1431 rndis_per_dev_params [i].media_state
1432 = NDIS_MEDIA_STATE_DISCONNECTED;
1433 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1434 }
7e27f18c 1435
1da177e4
LT		 1436 return 0;
1437}
1438
1439void rndis_exit (void)
1440{
1441#ifdef CONFIG_USB_GADGET_DEBUG_FILES
1442 u8 i;
1443 char name [20];
7e27f18c 1444
1da177e4
LT		 1445 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1446 sprintf (name, NAME_TEMPLATE, i);
1447 remove_proc_entry (name, NULL);
1448 }
1449#endif
1450}
1451
Ubuntu Jammy Linux kernel mirror