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e220ff75 SAS |
1 | /* |
2 | * RNDIS MSG parser | |
3 | * | |
4 | * Authors: Benedikt Spranger, Pengutronix | |
5 | * Robert Schwebel, Pengutronix | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | * | |
11 | * This software was originally developed in conformance with | |
12 | * Microsoft's Remote NDIS Specification License Agreement. | |
13 | * | |
14 | * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de> | |
15 | * Fixed message length bug in init_response | |
16 | * | |
17 | * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de> | |
18 | * Fixed rndis_rm_hdr length bug. | |
19 | * | |
20 | * Copyright (C) 2004 by David Brownell | |
21 | * updates to merge with Linux 2.6, better match RNDIS spec | |
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
25 | #include <linux/moduleparam.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/list.h> | |
30 | #include <linux/proc_fs.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/seq_file.h> | |
33 | #include <linux/netdevice.h> | |
34 | ||
35 | #include <asm/io.h> | |
36 | #include <asm/byteorder.h> | |
37 | #include <asm/unaligned.h> | |
38 | ||
39 | ||
40 | #undef VERBOSE_DEBUG | |
41 | ||
42 | #include "rndis.h" | |
43 | ||
44 | ||
45 | /* The driver for your USB chip needs to support ep0 OUT to work with | |
46 | * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional). | |
47 | * | |
48 | * Windows hosts need an INF file like Documentation/usb/linux.inf | |
49 | * and will be happier if you provide the host_addr module parameter. | |
50 | */ | |
51 | ||
52 | #if 0 | |
53 | static int rndis_debug = 0; | |
54 | module_param (rndis_debug, int, 0); | |
55 | MODULE_PARM_DESC (rndis_debug, "enable debugging"); | |
56 | #else | |
57 | #define rndis_debug 0 | |
58 | #endif | |
59 | ||
60 | #define RNDIS_MAX_CONFIGS 1 | |
61 | ||
62 | ||
63 | static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS]; | |
64 | ||
65 | /* Driver Version */ | |
66 | static const __le32 rndis_driver_version = cpu_to_le32(1); | |
67 | ||
68 | /* Function Prototypes */ | |
69 | static rndis_resp_t *rndis_add_response(int configNr, u32 length); | |
70 | ||
71 | ||
72 | /* supported OIDs */ | |
73 | static const u32 oid_supported_list[] = | |
74 | { | |
75 | /* the general stuff */ | |
76 | RNDIS_OID_GEN_SUPPORTED_LIST, | |
77 | RNDIS_OID_GEN_HARDWARE_STATUS, | |
78 | RNDIS_OID_GEN_MEDIA_SUPPORTED, | |
79 | RNDIS_OID_GEN_MEDIA_IN_USE, | |
80 | RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE, | |
81 | RNDIS_OID_GEN_LINK_SPEED, | |
82 | RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE, | |
83 | RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE, | |
84 | RNDIS_OID_GEN_VENDOR_ID, | |
85 | RNDIS_OID_GEN_VENDOR_DESCRIPTION, | |
86 | RNDIS_OID_GEN_VENDOR_DRIVER_VERSION, | |
87 | RNDIS_OID_GEN_CURRENT_PACKET_FILTER, | |
88 | RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE, | |
89 | RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, | |
90 | RNDIS_OID_GEN_PHYSICAL_MEDIUM, | |
91 | ||
92 | /* the statistical stuff */ | |
93 | RNDIS_OID_GEN_XMIT_OK, | |
94 | RNDIS_OID_GEN_RCV_OK, | |
95 | RNDIS_OID_GEN_XMIT_ERROR, | |
96 | RNDIS_OID_GEN_RCV_ERROR, | |
97 | RNDIS_OID_GEN_RCV_NO_BUFFER, | |
98 | #ifdef RNDIS_OPTIONAL_STATS | |
99 | RNDIS_OID_GEN_DIRECTED_BYTES_XMIT, | |
100 | RNDIS_OID_GEN_DIRECTED_FRAMES_XMIT, | |
101 | RNDIS_OID_GEN_MULTICAST_BYTES_XMIT, | |
102 | RNDIS_OID_GEN_MULTICAST_FRAMES_XMIT, | |
103 | RNDIS_OID_GEN_BROADCAST_BYTES_XMIT, | |
104 | RNDIS_OID_GEN_BROADCAST_FRAMES_XMIT, | |
105 | RNDIS_OID_GEN_DIRECTED_BYTES_RCV, | |
106 | RNDIS_OID_GEN_DIRECTED_FRAMES_RCV, | |
107 | RNDIS_OID_GEN_MULTICAST_BYTES_RCV, | |
108 | RNDIS_OID_GEN_MULTICAST_FRAMES_RCV, | |
109 | RNDIS_OID_GEN_BROADCAST_BYTES_RCV, | |
110 | RNDIS_OID_GEN_BROADCAST_FRAMES_RCV, | |
111 | RNDIS_OID_GEN_RCV_CRC_ERROR, | |
112 | RNDIS_OID_GEN_TRANSMIT_QUEUE_LENGTH, | |
113 | #endif /* RNDIS_OPTIONAL_STATS */ | |
114 | ||
115 | /* mandatory 802.3 */ | |
116 | /* the general stuff */ | |
117 | RNDIS_OID_802_3_PERMANENT_ADDRESS, | |
118 | RNDIS_OID_802_3_CURRENT_ADDRESS, | |
119 | RNDIS_OID_802_3_MULTICAST_LIST, | |
120 | RNDIS_OID_802_3_MAC_OPTIONS, | |
121 | RNDIS_OID_802_3_MAXIMUM_LIST_SIZE, | |
122 | ||
123 | /* the statistical stuff */ | |
124 | RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT, | |
125 | RNDIS_OID_802_3_XMIT_ONE_COLLISION, | |
126 | RNDIS_OID_802_3_XMIT_MORE_COLLISIONS, | |
127 | #ifdef RNDIS_OPTIONAL_STATS | |
128 | RNDIS_OID_802_3_XMIT_DEFERRED, | |
129 | RNDIS_OID_802_3_XMIT_MAX_COLLISIONS, | |
130 | RNDIS_OID_802_3_RCV_OVERRUN, | |
131 | RNDIS_OID_802_3_XMIT_UNDERRUN, | |
132 | RNDIS_OID_802_3_XMIT_HEARTBEAT_FAILURE, | |
133 | RNDIS_OID_802_3_XMIT_TIMES_CRS_LOST, | |
134 | RNDIS_OID_802_3_XMIT_LATE_COLLISIONS, | |
135 | #endif /* RNDIS_OPTIONAL_STATS */ | |
136 | ||
137 | #ifdef RNDIS_PM | |
138 | /* PM and wakeup are "mandatory" for USB, but the RNDIS specs | |
139 | * don't say what they mean ... and the NDIS specs are often | |
140 | * confusing and/or ambiguous in this context. (That is, more | |
141 | * so than their specs for the other OIDs.) | |
142 | * | |
143 | * FIXME someone who knows what these should do, please | |
144 | * implement them! | |
145 | */ | |
146 | ||
147 | /* power management */ | |
148 | OID_PNP_CAPABILITIES, | |
149 | OID_PNP_QUERY_POWER, | |
150 | OID_PNP_SET_POWER, | |
151 | ||
152 | #ifdef RNDIS_WAKEUP | |
153 | /* wake up host */ | |
154 | OID_PNP_ENABLE_WAKE_UP, | |
155 | OID_PNP_ADD_WAKE_UP_PATTERN, | |
156 | OID_PNP_REMOVE_WAKE_UP_PATTERN, | |
157 | #endif /* RNDIS_WAKEUP */ | |
158 | #endif /* RNDIS_PM */ | |
159 | }; | |
160 | ||
161 | ||
162 | /* NDIS Functions */ | |
163 | static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf, | |
164 | unsigned buf_len, rndis_resp_t *r) | |
165 | { | |
166 | int retval = -ENOTSUPP; | |
167 | u32 length = 4; /* usually */ | |
168 | __le32 *outbuf; | |
169 | int i, count; | |
170 | rndis_query_cmplt_type *resp; | |
171 | struct net_device *net; | |
172 | struct rtnl_link_stats64 temp; | |
173 | const struct rtnl_link_stats64 *stats; | |
174 | ||
175 | if (!r) return -ENOMEM; | |
176 | resp = (rndis_query_cmplt_type *)r->buf; | |
177 | ||
178 | if (!resp) return -ENOMEM; | |
179 | ||
180 | if (buf_len && rndis_debug > 1) { | |
181 | pr_debug("query OID %08x value, len %d:\n", OID, buf_len); | |
182 | for (i = 0; i < buf_len; i += 16) { | |
183 | pr_debug("%03d: %08x %08x %08x %08x\n", i, | |
184 | get_unaligned_le32(&buf[i]), | |
185 | get_unaligned_le32(&buf[i + 4]), | |
186 | get_unaligned_le32(&buf[i + 8]), | |
187 | get_unaligned_le32(&buf[i + 12])); | |
188 | } | |
189 | } | |
190 | ||
191 | /* response goes here, right after the header */ | |
192 | outbuf = (__le32 *)&resp[1]; | |
193 | resp->InformationBufferOffset = cpu_to_le32(16); | |
194 | ||
195 | net = rndis_per_dev_params[configNr].dev; | |
196 | stats = dev_get_stats(net, &temp); | |
197 | ||
198 | switch (OID) { | |
199 | ||
200 | /* general oids (table 4-1) */ | |
201 | ||
202 | /* mandatory */ | |
203 | case RNDIS_OID_GEN_SUPPORTED_LIST: | |
204 | pr_debug("%s: RNDIS_OID_GEN_SUPPORTED_LIST\n", __func__); | |
205 | length = sizeof(oid_supported_list); | |
206 | count = length / sizeof(u32); | |
207 | for (i = 0; i < count; i++) | |
208 | outbuf[i] = cpu_to_le32(oid_supported_list[i]); | |
209 | retval = 0; | |
210 | break; | |
211 | ||
212 | /* mandatory */ | |
213 | case RNDIS_OID_GEN_HARDWARE_STATUS: | |
214 | pr_debug("%s: RNDIS_OID_GEN_HARDWARE_STATUS\n", __func__); | |
215 | /* Bogus question! | |
216 | * Hardware must be ready to receive high level protocols. | |
217 | * BTW: | |
218 | * reddite ergo quae sunt Caesaris Caesari | |
219 | * et quae sunt Dei Deo! | |
220 | */ | |
221 | *outbuf = cpu_to_le32(0); | |
222 | retval = 0; | |
223 | break; | |
224 | ||
225 | /* mandatory */ | |
226 | case RNDIS_OID_GEN_MEDIA_SUPPORTED: | |
227 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_SUPPORTED\n", __func__); | |
228 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium); | |
229 | retval = 0; | |
230 | break; | |
231 | ||
232 | /* mandatory */ | |
233 | case RNDIS_OID_GEN_MEDIA_IN_USE: | |
234 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_IN_USE\n", __func__); | |
235 | /* one medium, one transport... (maybe you do it better) */ | |
236 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium); | |
237 | retval = 0; | |
238 | break; | |
239 | ||
240 | /* mandatory */ | |
241 | case RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE: | |
242 | pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__); | |
243 | if (rndis_per_dev_params[configNr].dev) { | |
244 | *outbuf = cpu_to_le32( | |
245 | rndis_per_dev_params[configNr].dev->mtu); | |
246 | retval = 0; | |
247 | } | |
248 | break; | |
249 | ||
250 | /* mandatory */ | |
251 | case RNDIS_OID_GEN_LINK_SPEED: | |
252 | if (rndis_debug > 1) | |
253 | pr_debug("%s: RNDIS_OID_GEN_LINK_SPEED\n", __func__); | |
254 | if (rndis_per_dev_params[configNr].media_state | |
255 | == RNDIS_MEDIA_STATE_DISCONNECTED) | |
256 | *outbuf = cpu_to_le32(0); | |
257 | else | |
258 | *outbuf = cpu_to_le32( | |
259 | rndis_per_dev_params[configNr].speed); | |
260 | retval = 0; | |
261 | break; | |
262 | ||
263 | /* mandatory */ | |
264 | case RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE: | |
265 | pr_debug("%s: RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__); | |
266 | if (rndis_per_dev_params[configNr].dev) { | |
267 | *outbuf = cpu_to_le32( | |
268 | rndis_per_dev_params[configNr].dev->mtu); | |
269 | retval = 0; | |
270 | } | |
271 | break; | |
272 | ||
273 | /* mandatory */ | |
274 | case RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE: | |
275 | pr_debug("%s: RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__); | |
276 | if (rndis_per_dev_params[configNr].dev) { | |
277 | *outbuf = cpu_to_le32( | |
278 | rndis_per_dev_params[configNr].dev->mtu); | |
279 | retval = 0; | |
280 | } | |
281 | break; | |
282 | ||
283 | /* mandatory */ | |
284 | case RNDIS_OID_GEN_VENDOR_ID: | |
285 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_ID\n", __func__); | |
286 | *outbuf = cpu_to_le32( | |
287 | rndis_per_dev_params[configNr].vendorID); | |
288 | retval = 0; | |
289 | break; | |
290 | ||
291 | /* mandatory */ | |
292 | case RNDIS_OID_GEN_VENDOR_DESCRIPTION: | |
293 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_DESCRIPTION\n", __func__); | |
294 | if (rndis_per_dev_params[configNr].vendorDescr) { | |
295 | length = strlen(rndis_per_dev_params[configNr]. | |
296 | vendorDescr); | |
297 | memcpy(outbuf, | |
298 | rndis_per_dev_params[configNr].vendorDescr, | |
299 | length); | |
300 | } else { | |
301 | outbuf[0] = 0; | |
302 | } | |
303 | retval = 0; | |
304 | break; | |
305 | ||
306 | case RNDIS_OID_GEN_VENDOR_DRIVER_VERSION: | |
307 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_DRIVER_VERSION\n", __func__); | |
308 | /* Created as LE */ | |
309 | *outbuf = rndis_driver_version; | |
310 | retval = 0; | |
311 | break; | |
312 | ||
313 | /* mandatory */ | |
314 | case RNDIS_OID_GEN_CURRENT_PACKET_FILTER: | |
315 | pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER\n", __func__); | |
316 | *outbuf = cpu_to_le32(*rndis_per_dev_params[configNr].filter); | |
317 | retval = 0; | |
318 | break; | |
319 | ||
320 | /* mandatory */ | |
321 | case RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE: | |
322 | pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__); | |
323 | *outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE); | |
324 | retval = 0; | |
325 | break; | |
326 | ||
327 | /* mandatory */ | |
328 | case RNDIS_OID_GEN_MEDIA_CONNECT_STATUS: | |
329 | if (rndis_debug > 1) | |
330 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_CONNECT_STATUS\n", __func__); | |
331 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr] | |
332 | .media_state); | |
333 | retval = 0; | |
334 | break; | |
335 | ||
336 | case RNDIS_OID_GEN_PHYSICAL_MEDIUM: | |
337 | pr_debug("%s: RNDIS_OID_GEN_PHYSICAL_MEDIUM\n", __func__); | |
338 | *outbuf = cpu_to_le32(0); | |
339 | retval = 0; | |
340 | break; | |
341 | ||
342 | /* The RNDIS specification is incomplete/wrong. Some versions | |
343 | * of MS-Windows expect OIDs that aren't specified there. Other | |
344 | * versions emit undefined RNDIS messages. DOCUMENT ALL THESE! | |
345 | */ | |
346 | case RNDIS_OID_GEN_MAC_OPTIONS: /* from WinME */ | |
347 | pr_debug("%s: RNDIS_OID_GEN_MAC_OPTIONS\n", __func__); | |
348 | *outbuf = cpu_to_le32( | |
349 | RNDIS_MAC_OPTION_RECEIVE_SERIALIZED | |
350 | | RNDIS_MAC_OPTION_FULL_DUPLEX); | |
351 | retval = 0; | |
352 | break; | |
353 | ||
354 | /* statistics OIDs (table 4-2) */ | |
355 | ||
356 | /* mandatory */ | |
357 | case RNDIS_OID_GEN_XMIT_OK: | |
358 | if (rndis_debug > 1) | |
359 | pr_debug("%s: RNDIS_OID_GEN_XMIT_OK\n", __func__); | |
360 | if (stats) { | |
361 | *outbuf = cpu_to_le32(stats->tx_packets | |
362 | - stats->tx_errors - stats->tx_dropped); | |
363 | retval = 0; | |
364 | } | |
365 | break; | |
366 | ||
367 | /* mandatory */ | |
368 | case RNDIS_OID_GEN_RCV_OK: | |
369 | if (rndis_debug > 1) | |
370 | pr_debug("%s: RNDIS_OID_GEN_RCV_OK\n", __func__); | |
371 | if (stats) { | |
372 | *outbuf = cpu_to_le32(stats->rx_packets | |
373 | - stats->rx_errors - stats->rx_dropped); | |
374 | retval = 0; | |
375 | } | |
376 | break; | |
377 | ||
378 | /* mandatory */ | |
379 | case RNDIS_OID_GEN_XMIT_ERROR: | |
380 | if (rndis_debug > 1) | |
381 | pr_debug("%s: RNDIS_OID_GEN_XMIT_ERROR\n", __func__); | |
382 | if (stats) { | |
383 | *outbuf = cpu_to_le32(stats->tx_errors); | |
384 | retval = 0; | |
385 | } | |
386 | break; | |
387 | ||
388 | /* mandatory */ | |
389 | case RNDIS_OID_GEN_RCV_ERROR: | |
390 | if (rndis_debug > 1) | |
391 | pr_debug("%s: RNDIS_OID_GEN_RCV_ERROR\n", __func__); | |
392 | if (stats) { | |
393 | *outbuf = cpu_to_le32(stats->rx_errors); | |
394 | retval = 0; | |
395 | } | |
396 | break; | |
397 | ||
398 | /* mandatory */ | |
399 | case RNDIS_OID_GEN_RCV_NO_BUFFER: | |
400 | pr_debug("%s: RNDIS_OID_GEN_RCV_NO_BUFFER\n", __func__); | |
401 | if (stats) { | |
402 | *outbuf = cpu_to_le32(stats->rx_dropped); | |
403 | retval = 0; | |
404 | } | |
405 | break; | |
406 | ||
407 | /* ieee802.3 OIDs (table 4-3) */ | |
408 | ||
409 | /* mandatory */ | |
410 | case RNDIS_OID_802_3_PERMANENT_ADDRESS: | |
411 | pr_debug("%s: RNDIS_OID_802_3_PERMANENT_ADDRESS\n", __func__); | |
412 | if (rndis_per_dev_params[configNr].dev) { | |
413 | length = ETH_ALEN; | |
414 | memcpy(outbuf, | |
415 | rndis_per_dev_params[configNr].host_mac, | |
416 | length); | |
417 | retval = 0; | |
418 | } | |
419 | break; | |
420 | ||
421 | /* mandatory */ | |
422 | case RNDIS_OID_802_3_CURRENT_ADDRESS: | |
423 | pr_debug("%s: RNDIS_OID_802_3_CURRENT_ADDRESS\n", __func__); | |
424 | if (rndis_per_dev_params[configNr].dev) { | |
425 | length = ETH_ALEN; | |
426 | memcpy(outbuf, | |
427 | rndis_per_dev_params [configNr].host_mac, | |
428 | length); | |
429 | retval = 0; | |
430 | } | |
431 | break; | |
432 | ||
433 | /* mandatory */ | |
434 | case RNDIS_OID_802_3_MULTICAST_LIST: | |
435 | pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__); | |
436 | /* Multicast base address only */ | |
437 | *outbuf = cpu_to_le32(0xE0000000); | |
438 | retval = 0; | |
439 | break; | |
440 | ||
441 | /* mandatory */ | |
442 | case RNDIS_OID_802_3_MAXIMUM_LIST_SIZE: | |
443 | pr_debug("%s: RNDIS_OID_802_3_MAXIMUM_LIST_SIZE\n", __func__); | |
444 | /* Multicast base address only */ | |
445 | *outbuf = cpu_to_le32(1); | |
446 | retval = 0; | |
447 | break; | |
448 | ||
449 | case RNDIS_OID_802_3_MAC_OPTIONS: | |
450 | pr_debug("%s: RNDIS_OID_802_3_MAC_OPTIONS\n", __func__); | |
451 | *outbuf = cpu_to_le32(0); | |
452 | retval = 0; | |
453 | break; | |
454 | ||
455 | /* ieee802.3 statistics OIDs (table 4-4) */ | |
456 | ||
457 | /* mandatory */ | |
458 | case RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT: | |
459 | pr_debug("%s: RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__); | |
460 | if (stats) { | |
461 | *outbuf = cpu_to_le32(stats->rx_frame_errors); | |
462 | retval = 0; | |
463 | } | |
464 | break; | |
465 | ||
466 | /* mandatory */ | |
467 | case RNDIS_OID_802_3_XMIT_ONE_COLLISION: | |
468 | pr_debug("%s: RNDIS_OID_802_3_XMIT_ONE_COLLISION\n", __func__); | |
469 | *outbuf = cpu_to_le32(0); | |
470 | retval = 0; | |
471 | break; | |
472 | ||
473 | /* mandatory */ | |
474 | case RNDIS_OID_802_3_XMIT_MORE_COLLISIONS: | |
475 | pr_debug("%s: RNDIS_OID_802_3_XMIT_MORE_COLLISIONS\n", __func__); | |
476 | *outbuf = cpu_to_le32(0); | |
477 | retval = 0; | |
478 | break; | |
479 | ||
480 | default: | |
481 | pr_warning("%s: query unknown OID 0x%08X\n", | |
482 | __func__, OID); | |
483 | } | |
484 | if (retval < 0) | |
485 | length = 0; | |
486 | ||
487 | resp->InformationBufferLength = cpu_to_le32(length); | |
488 | r->length = length + sizeof(*resp); | |
489 | resp->MessageLength = cpu_to_le32(r->length); | |
490 | return retval; | |
491 | } | |
492 | ||
493 | static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len, | |
494 | rndis_resp_t *r) | |
495 | { | |
496 | rndis_set_cmplt_type *resp; | |
497 | int i, retval = -ENOTSUPP; | |
498 | struct rndis_params *params; | |
499 | ||
500 | if (!r) | |
501 | return -ENOMEM; | |
502 | resp = (rndis_set_cmplt_type *)r->buf; | |
503 | if (!resp) | |
504 | return -ENOMEM; | |
505 | ||
506 | if (buf_len && rndis_debug > 1) { | |
507 | pr_debug("set OID %08x value, len %d:\n", OID, buf_len); | |
508 | for (i = 0; i < buf_len; i += 16) { | |
509 | pr_debug("%03d: %08x %08x %08x %08x\n", i, | |
510 | get_unaligned_le32(&buf[i]), | |
511 | get_unaligned_le32(&buf[i + 4]), | |
512 | get_unaligned_le32(&buf[i + 8]), | |
513 | get_unaligned_le32(&buf[i + 12])); | |
514 | } | |
515 | } | |
516 | ||
517 | params = &rndis_per_dev_params[configNr]; | |
518 | switch (OID) { | |
519 | case RNDIS_OID_GEN_CURRENT_PACKET_FILTER: | |
520 | ||
521 | /* these NDIS_PACKET_TYPE_* bitflags are shared with | |
522 | * cdc_filter; it's not RNDIS-specific | |
523 | * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in: | |
524 | * PROMISCUOUS, DIRECTED, | |
525 | * MULTICAST, ALL_MULTICAST, BROADCAST | |
526 | */ | |
527 | *params->filter = (u16)get_unaligned_le32(buf); | |
528 | pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER %08x\n", | |
529 | __func__, *params->filter); | |
530 | ||
531 | /* this call has a significant side effect: it's | |
532 | * what makes the packet flow start and stop, like | |
533 | * activating the CDC Ethernet altsetting. | |
534 | */ | |
535 | retval = 0; | |
536 | if (*params->filter) { | |
537 | params->state = RNDIS_DATA_INITIALIZED; | |
538 | netif_carrier_on(params->dev); | |
539 | if (netif_running(params->dev)) | |
540 | netif_wake_queue(params->dev); | |
541 | } else { | |
542 | params->state = RNDIS_INITIALIZED; | |
543 | netif_carrier_off(params->dev); | |
544 | netif_stop_queue(params->dev); | |
545 | } | |
546 | break; | |
547 | ||
548 | case RNDIS_OID_802_3_MULTICAST_LIST: | |
549 | /* I think we can ignore this */ | |
550 | pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__); | |
551 | retval = 0; | |
552 | break; | |
553 | ||
554 | default: | |
555 | pr_warning("%s: set unknown OID 0x%08X, size %d\n", | |
556 | __func__, OID, buf_len); | |
557 | } | |
558 | ||
559 | return retval; | |
560 | } | |
561 | ||
562 | /* | |
563 | * Response Functions | |
564 | */ | |
565 | ||
566 | static int rndis_init_response(int configNr, rndis_init_msg_type *buf) | |
567 | { | |
568 | rndis_init_cmplt_type *resp; | |
569 | rndis_resp_t *r; | |
570 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
571 | ||
572 | if (!params->dev) | |
573 | return -ENOTSUPP; | |
574 | ||
575 | r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type)); | |
576 | if (!r) | |
577 | return -ENOMEM; | |
578 | resp = (rndis_init_cmplt_type *)r->buf; | |
579 | ||
580 | resp->MessageType = cpu_to_le32(RNDIS_MSG_INIT_C); | |
581 | resp->MessageLength = cpu_to_le32(52); | |
582 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ | |
583 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
584 | resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION); | |
585 | resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION); | |
586 | resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS); | |
587 | resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3); | |
588 | resp->MaxPacketsPerTransfer = cpu_to_le32(1); | |
589 | resp->MaxTransferSize = cpu_to_le32( | |
590 | params->dev->mtu | |
591 | + sizeof(struct ethhdr) | |
592 | + sizeof(struct rndis_packet_msg_type) | |
593 | + 22); | |
594 | resp->PacketAlignmentFactor = cpu_to_le32(0); | |
595 | resp->AFListOffset = cpu_to_le32(0); | |
596 | resp->AFListSize = cpu_to_le32(0); | |
597 | ||
598 | params->resp_avail(params->v); | |
599 | return 0; | |
600 | } | |
601 | ||
602 | static int rndis_query_response(int configNr, rndis_query_msg_type *buf) | |
603 | { | |
604 | rndis_query_cmplt_type *resp; | |
605 | rndis_resp_t *r; | |
606 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
607 | ||
608 | /* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */ | |
609 | if (!params->dev) | |
610 | return -ENOTSUPP; | |
611 | ||
612 | /* | |
613 | * we need more memory: | |
614 | * gen_ndis_query_resp expects enough space for | |
615 | * rndis_query_cmplt_type followed by data. | |
616 | * oid_supported_list is the largest data reply | |
617 | */ | |
618 | r = rndis_add_response(configNr, | |
619 | sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type)); | |
620 | if (!r) | |
621 | return -ENOMEM; | |
622 | resp = (rndis_query_cmplt_type *)r->buf; | |
623 | ||
624 | resp->MessageType = cpu_to_le32(RNDIS_MSG_QUERY_C); | |
625 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ | |
626 | ||
627 | if (gen_ndis_query_resp(configNr, le32_to_cpu(buf->OID), | |
628 | le32_to_cpu(buf->InformationBufferOffset) | |
629 | + 8 + (u8 *)buf, | |
630 | le32_to_cpu(buf->InformationBufferLength), | |
631 | r)) { | |
632 | /* OID not supported */ | |
633 | resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED); | |
634 | resp->MessageLength = cpu_to_le32(sizeof *resp); | |
635 | resp->InformationBufferLength = cpu_to_le32(0); | |
636 | resp->InformationBufferOffset = cpu_to_le32(0); | |
637 | } else | |
638 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
639 | ||
640 | params->resp_avail(params->v); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | static int rndis_set_response(int configNr, rndis_set_msg_type *buf) | |
645 | { | |
646 | u32 BufLength, BufOffset; | |
647 | rndis_set_cmplt_type *resp; | |
648 | rndis_resp_t *r; | |
649 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
650 | ||
651 | r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type)); | |
652 | if (!r) | |
653 | return -ENOMEM; | |
654 | resp = (rndis_set_cmplt_type *)r->buf; | |
655 | ||
656 | BufLength = le32_to_cpu(buf->InformationBufferLength); | |
657 | BufOffset = le32_to_cpu(buf->InformationBufferOffset); | |
658 | ||
659 | #ifdef VERBOSE_DEBUG | |
660 | pr_debug("%s: Length: %d\n", __func__, BufLength); | |
661 | pr_debug("%s: Offset: %d\n", __func__, BufOffset); | |
662 | pr_debug("%s: InfoBuffer: ", __func__); | |
663 | ||
664 | for (i = 0; i < BufLength; i++) { | |
665 | pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); | |
666 | } | |
667 | ||
668 | pr_debug("\n"); | |
669 | #endif | |
670 | ||
671 | resp->MessageType = cpu_to_le32(RNDIS_MSG_SET_C); | |
672 | resp->MessageLength = cpu_to_le32(16); | |
673 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ | |
674 | if (gen_ndis_set_resp(configNr, le32_to_cpu(buf->OID), | |
675 | ((u8 *)buf) + 8 + BufOffset, BufLength, r)) | |
676 | resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED); | |
677 | else | |
678 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
679 | ||
680 | params->resp_avail(params->v); | |
681 | return 0; | |
682 | } | |
683 | ||
684 | static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf) | |
685 | { | |
686 | rndis_reset_cmplt_type *resp; | |
687 | rndis_resp_t *r; | |
688 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
689 | ||
690 | r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type)); | |
691 | if (!r) | |
692 | return -ENOMEM; | |
693 | resp = (rndis_reset_cmplt_type *)r->buf; | |
694 | ||
695 | resp->MessageType = cpu_to_le32(RNDIS_MSG_RESET_C); | |
696 | resp->MessageLength = cpu_to_le32(16); | |
697 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
698 | /* resent information */ | |
699 | resp->AddressingReset = cpu_to_le32(1); | |
700 | ||
701 | params->resp_avail(params->v); | |
702 | return 0; | |
703 | } | |
704 | ||
705 | static int rndis_keepalive_response(int configNr, | |
706 | rndis_keepalive_msg_type *buf) | |
707 | { | |
708 | rndis_keepalive_cmplt_type *resp; | |
709 | rndis_resp_t *r; | |
710 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
711 | ||
712 | /* host "should" check only in RNDIS_DATA_INITIALIZED state */ | |
713 | ||
714 | r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type)); | |
715 | if (!r) | |
716 | return -ENOMEM; | |
717 | resp = (rndis_keepalive_cmplt_type *)r->buf; | |
718 | ||
719 | resp->MessageType = cpu_to_le32(RNDIS_MSG_KEEPALIVE_C); | |
720 | resp->MessageLength = cpu_to_le32(16); | |
721 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ | |
722 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
723 | ||
724 | params->resp_avail(params->v); | |
725 | return 0; | |
726 | } | |
727 | ||
728 | ||
729 | /* | |
730 | * Device to Host Comunication | |
731 | */ | |
732 | static int rndis_indicate_status_msg(int configNr, u32 status) | |
733 | { | |
734 | rndis_indicate_status_msg_type *resp; | |
735 | rndis_resp_t *r; | |
736 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
737 | ||
738 | if (params->state == RNDIS_UNINITIALIZED) | |
739 | return -ENOTSUPP; | |
740 | ||
741 | r = rndis_add_response(configNr, | |
742 | sizeof(rndis_indicate_status_msg_type)); | |
743 | if (!r) | |
744 | return -ENOMEM; | |
745 | resp = (rndis_indicate_status_msg_type *)r->buf; | |
746 | ||
747 | resp->MessageType = cpu_to_le32(RNDIS_MSG_INDICATE); | |
748 | resp->MessageLength = cpu_to_le32(20); | |
749 | resp->Status = cpu_to_le32(status); | |
750 | resp->StatusBufferLength = cpu_to_le32(0); | |
751 | resp->StatusBufferOffset = cpu_to_le32(0); | |
752 | ||
753 | params->resp_avail(params->v); | |
754 | return 0; | |
755 | } | |
756 | ||
757 | int rndis_signal_connect(int configNr) | |
758 | { | |
759 | rndis_per_dev_params[configNr].media_state | |
760 | = RNDIS_MEDIA_STATE_CONNECTED; | |
761 | return rndis_indicate_status_msg(configNr, | |
762 | RNDIS_STATUS_MEDIA_CONNECT); | |
763 | } | |
764 | ||
765 | int rndis_signal_disconnect(int configNr) | |
766 | { | |
767 | rndis_per_dev_params[configNr].media_state | |
768 | = RNDIS_MEDIA_STATE_DISCONNECTED; | |
769 | return rndis_indicate_status_msg(configNr, | |
770 | RNDIS_STATUS_MEDIA_DISCONNECT); | |
771 | } | |
772 | ||
773 | void rndis_uninit(int configNr) | |
774 | { | |
775 | u8 *buf; | |
776 | u32 length; | |
777 | ||
778 | if (configNr >= RNDIS_MAX_CONFIGS) | |
779 | return; | |
780 | rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED; | |
781 | ||
782 | /* drain the response queue */ | |
783 | while ((buf = rndis_get_next_response(configNr, &length))) | |
784 | rndis_free_response(configNr, buf); | |
785 | } | |
786 | ||
787 | void rndis_set_host_mac(int configNr, const u8 *addr) | |
788 | { | |
789 | rndis_per_dev_params[configNr].host_mac = addr; | |
790 | } | |
791 | ||
792 | /* | |
793 | * Message Parser | |
794 | */ | |
795 | int rndis_msg_parser(u8 configNr, u8 *buf) | |
796 | { | |
797 | u32 MsgType, MsgLength; | |
798 | __le32 *tmp; | |
799 | struct rndis_params *params; | |
800 | ||
801 | if (!buf) | |
802 | return -ENOMEM; | |
803 | ||
804 | tmp = (__le32 *)buf; | |
805 | MsgType = get_unaligned_le32(tmp++); | |
806 | MsgLength = get_unaligned_le32(tmp++); | |
807 | ||
808 | if (configNr >= RNDIS_MAX_CONFIGS) | |
809 | return -ENOTSUPP; | |
810 | params = &rndis_per_dev_params[configNr]; | |
811 | ||
812 | /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for | |
813 | * rx/tx statistics and link status, in addition to KEEPALIVE traffic | |
814 | * and normal HC level polling to see if there's any IN traffic. | |
815 | */ | |
816 | ||
817 | /* For USB: responses may take up to 10 seconds */ | |
818 | switch (MsgType) { | |
819 | case RNDIS_MSG_INIT: | |
820 | pr_debug("%s: RNDIS_MSG_INIT\n", | |
821 | __func__); | |
822 | params->state = RNDIS_INITIALIZED; | |
823 | return rndis_init_response(configNr, | |
824 | (rndis_init_msg_type *)buf); | |
825 | ||
826 | case RNDIS_MSG_HALT: | |
827 | pr_debug("%s: RNDIS_MSG_HALT\n", | |
828 | __func__); | |
829 | params->state = RNDIS_UNINITIALIZED; | |
830 | if (params->dev) { | |
831 | netif_carrier_off(params->dev); | |
832 | netif_stop_queue(params->dev); | |
833 | } | |
834 | return 0; | |
835 | ||
836 | case RNDIS_MSG_QUERY: | |
837 | return rndis_query_response(configNr, | |
838 | (rndis_query_msg_type *)buf); | |
839 | ||
840 | case RNDIS_MSG_SET: | |
841 | return rndis_set_response(configNr, | |
842 | (rndis_set_msg_type *)buf); | |
843 | ||
844 | case RNDIS_MSG_RESET: | |
845 | pr_debug("%s: RNDIS_MSG_RESET\n", | |
846 | __func__); | |
847 | return rndis_reset_response(configNr, | |
848 | (rndis_reset_msg_type *)buf); | |
849 | ||
850 | case RNDIS_MSG_KEEPALIVE: | |
851 | /* For USB: host does this every 5 seconds */ | |
852 | if (rndis_debug > 1) | |
853 | pr_debug("%s: RNDIS_MSG_KEEPALIVE\n", | |
854 | __func__); | |
855 | return rndis_keepalive_response(configNr, | |
856 | (rndis_keepalive_msg_type *) | |
857 | buf); | |
858 | ||
859 | default: | |
860 | /* At least Windows XP emits some undefined RNDIS messages. | |
861 | * In one case those messages seemed to relate to the host | |
862 | * suspending itself. | |
863 | */ | |
864 | pr_warning("%s: unknown RNDIS message 0x%08X len %d\n", | |
865 | __func__, MsgType, MsgLength); | |
866 | print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET, | |
867 | buf, MsgLength); | |
868 | break; | |
869 | } | |
870 | ||
871 | return -ENOTSUPP; | |
872 | } | |
873 | ||
874 | int rndis_register(void (*resp_avail)(void *v), void *v) | |
875 | { | |
876 | u8 i; | |
877 | ||
878 | if (!resp_avail) | |
879 | return -EINVAL; | |
880 | ||
881 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { | |
882 | if (!rndis_per_dev_params[i].used) { | |
883 | rndis_per_dev_params[i].used = 1; | |
884 | rndis_per_dev_params[i].resp_avail = resp_avail; | |
885 | rndis_per_dev_params[i].v = v; | |
886 | pr_debug("%s: configNr = %d\n", __func__, i); | |
887 | return i; | |
888 | } | |
889 | } | |
890 | pr_debug("failed\n"); | |
891 | ||
892 | return -ENODEV; | |
893 | } | |
894 | ||
895 | void rndis_deregister(int configNr) | |
896 | { | |
897 | pr_debug("%s:\n", __func__); | |
898 | ||
899 | if (configNr >= RNDIS_MAX_CONFIGS) return; | |
900 | rndis_per_dev_params[configNr].used = 0; | |
901 | } | |
902 | ||
903 | int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter) | |
904 | { | |
905 | pr_debug("%s:\n", __func__); | |
906 | if (!dev) | |
907 | return -EINVAL; | |
908 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; | |
909 | ||
910 | rndis_per_dev_params[configNr].dev = dev; | |
911 | rndis_per_dev_params[configNr].filter = cdc_filter; | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr) | |
917 | { | |
918 | pr_debug("%s:\n", __func__); | |
919 | if (!vendorDescr) return -1; | |
920 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; | |
921 | ||
922 | rndis_per_dev_params[configNr].vendorID = vendorID; | |
923 | rndis_per_dev_params[configNr].vendorDescr = vendorDescr; | |
924 | ||
925 | return 0; | |
926 | } | |
927 | ||
928 | int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed) | |
929 | { | |
930 | pr_debug("%s: %u %u\n", __func__, medium, speed); | |
931 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; | |
932 | ||
933 | rndis_per_dev_params[configNr].medium = medium; | |
934 | rndis_per_dev_params[configNr].speed = speed; | |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
939 | void rndis_add_hdr(struct sk_buff *skb) | |
940 | { | |
941 | struct rndis_packet_msg_type *header; | |
942 | ||
943 | if (!skb) | |
944 | return; | |
945 | header = (void *)skb_push(skb, sizeof(*header)); | |
946 | memset(header, 0, sizeof *header); | |
947 | header->MessageType = cpu_to_le32(RNDIS_MSG_PACKET); | |
948 | header->MessageLength = cpu_to_le32(skb->len); | |
949 | header->DataOffset = cpu_to_le32(36); | |
950 | header->DataLength = cpu_to_le32(skb->len - sizeof(*header)); | |
951 | } | |
952 | ||
953 | void rndis_free_response(int configNr, u8 *buf) | |
954 | { | |
955 | rndis_resp_t *r; | |
956 | struct list_head *act, *tmp; | |
957 | ||
958 | list_for_each_safe(act, tmp, | |
959 | &(rndis_per_dev_params[configNr].resp_queue)) | |
960 | { | |
961 | r = list_entry(act, rndis_resp_t, list); | |
962 | if (r && r->buf == buf) { | |
963 | list_del(&r->list); | |
964 | kfree(r); | |
965 | } | |
966 | } | |
967 | } | |
968 | ||
969 | u8 *rndis_get_next_response(int configNr, u32 *length) | |
970 | { | |
971 | rndis_resp_t *r; | |
972 | struct list_head *act, *tmp; | |
973 | ||
974 | if (!length) return NULL; | |
975 | ||
976 | list_for_each_safe(act, tmp, | |
977 | &(rndis_per_dev_params[configNr].resp_queue)) | |
978 | { | |
979 | r = list_entry(act, rndis_resp_t, list); | |
980 | if (!r->send) { | |
981 | r->send = 1; | |
982 | *length = r->length; | |
983 | return r->buf; | |
984 | } | |
985 | } | |
986 | ||
987 | return NULL; | |
988 | } | |
989 | ||
990 | static rndis_resp_t *rndis_add_response(int configNr, u32 length) | |
991 | { | |
992 | rndis_resp_t *r; | |
993 | ||
994 | /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */ | |
995 | r = kmalloc(sizeof(rndis_resp_t) + length, GFP_ATOMIC); | |
996 | if (!r) return NULL; | |
997 | ||
998 | r->buf = (u8 *)(r + 1); | |
999 | r->length = length; | |
1000 | r->send = 0; | |
1001 | ||
1002 | list_add_tail(&r->list, | |
1003 | &(rndis_per_dev_params[configNr].resp_queue)); | |
1004 | return r; | |
1005 | } | |
1006 | ||
1007 | int rndis_rm_hdr(struct gether *port, | |
1008 | struct sk_buff *skb, | |
1009 | struct sk_buff_head *list) | |
1010 | { | |
1011 | /* tmp points to a struct rndis_packet_msg_type */ | |
1012 | __le32 *tmp = (void *)skb->data; | |
1013 | ||
1014 | /* MessageType, MessageLength */ | |
1015 | if (cpu_to_le32(RNDIS_MSG_PACKET) | |
1016 | != get_unaligned(tmp++)) { | |
1017 | dev_kfree_skb_any(skb); | |
1018 | return -EINVAL; | |
1019 | } | |
1020 | tmp++; | |
1021 | ||
1022 | /* DataOffset, DataLength */ | |
1023 | if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) { | |
1024 | dev_kfree_skb_any(skb); | |
1025 | return -EOVERFLOW; | |
1026 | } | |
1027 | skb_trim(skb, get_unaligned_le32(tmp++)); | |
1028 | ||
1029 | skb_queue_tail(list, skb); | |
1030 | return 0; | |
1031 | } | |
1032 | ||
1033 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES | |
1034 | ||
1035 | static int rndis_proc_show(struct seq_file *m, void *v) | |
1036 | { | |
1037 | rndis_params *param = m->private; | |
1038 | ||
1039 | seq_printf(m, | |
1040 | "Config Nr. %d\n" | |
1041 | "used : %s\n" | |
1042 | "state : %s\n" | |
1043 | "medium : 0x%08X\n" | |
1044 | "speed : %d\n" | |
1045 | "cable : %s\n" | |
1046 | "vendor ID : 0x%08X\n" | |
1047 | "vendor : %s\n", | |
1048 | param->confignr, (param->used) ? "y" : "n", | |
1049 | ({ char *s = "?"; | |
1050 | switch (param->state) { | |
1051 | case RNDIS_UNINITIALIZED: | |
1052 | s = "RNDIS_UNINITIALIZED"; break; | |
1053 | case RNDIS_INITIALIZED: | |
1054 | s = "RNDIS_INITIALIZED"; break; | |
1055 | case RNDIS_DATA_INITIALIZED: | |
1056 | s = "RNDIS_DATA_INITIALIZED"; break; | |
1057 | }; s; }), | |
1058 | param->medium, | |
1059 | (param->media_state) ? 0 : param->speed*100, | |
1060 | (param->media_state) ? "disconnected" : "connected", | |
1061 | param->vendorID, param->vendorDescr); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, | |
1066 | size_t count, loff_t *ppos) | |
1067 | { | |
496ad9aa | 1068 | rndis_params *p = PDE(file_inode(file))->data; |
e220ff75 SAS |
1069 | u32 speed = 0; |
1070 | int i, fl_speed = 0; | |
1071 | ||
1072 | for (i = 0; i < count; i++) { | |
1073 | char c; | |
1074 | if (get_user(c, buffer)) | |
1075 | return -EFAULT; | |
1076 | switch (c) { | |
1077 | case '0': | |
1078 | case '1': | |
1079 | case '2': | |
1080 | case '3': | |
1081 | case '4': | |
1082 | case '5': | |
1083 | case '6': | |
1084 | case '7': | |
1085 | case '8': | |
1086 | case '9': | |
1087 | fl_speed = 1; | |
1088 | speed = speed * 10 + c - '0'; | |
1089 | break; | |
1090 | case 'C': | |
1091 | case 'c': | |
1092 | rndis_signal_connect(p->confignr); | |
1093 | break; | |
1094 | case 'D': | |
1095 | case 'd': | |
1096 | rndis_signal_disconnect(p->confignr); | |
1097 | break; | |
1098 | default: | |
1099 | if (fl_speed) p->speed = speed; | |
1100 | else pr_debug("%c is not valid\n", c); | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | buffer++; | |
1105 | } | |
1106 | ||
1107 | return count; | |
1108 | } | |
1109 | ||
1110 | static int rndis_proc_open(struct inode *inode, struct file *file) | |
1111 | { | |
1112 | return single_open(file, rndis_proc_show, PDE(inode)->data); | |
1113 | } | |
1114 | ||
1115 | static const struct file_operations rndis_proc_fops = { | |
1116 | .owner = THIS_MODULE, | |
1117 | .open = rndis_proc_open, | |
1118 | .read = seq_read, | |
1119 | .llseek = seq_lseek, | |
1120 | .release = single_release, | |
1121 | .write = rndis_proc_write, | |
1122 | }; | |
1123 | ||
1124 | #define NAME_TEMPLATE "driver/rndis-%03d" | |
1125 | ||
1126 | static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; | |
1127 | ||
1128 | #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ | |
1129 | ||
1130 | ||
1131 | int rndis_init(void) | |
1132 | { | |
1133 | u8 i; | |
1134 | ||
1135 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { | |
1136 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES | |
1137 | char name [20]; | |
1138 | ||
1139 | sprintf(name, NAME_TEMPLATE, i); | |
1140 | rndis_connect_state[i] = proc_create_data(name, 0660, NULL, | |
1141 | &rndis_proc_fops, | |
1142 | (void *)(rndis_per_dev_params + i)); | |
1143 | if (!rndis_connect_state[i]) { | |
1144 | pr_debug("%s: remove entries", __func__); | |
1145 | while (i) { | |
1146 | sprintf(name, NAME_TEMPLATE, --i); | |
1147 | remove_proc_entry(name, NULL); | |
1148 | } | |
1149 | pr_debug("\n"); | |
1150 | return -EIO; | |
1151 | } | |
1152 | #endif | |
1153 | rndis_per_dev_params[i].confignr = i; | |
1154 | rndis_per_dev_params[i].used = 0; | |
1155 | rndis_per_dev_params[i].state = RNDIS_UNINITIALIZED; | |
1156 | rndis_per_dev_params[i].media_state | |
1157 | = RNDIS_MEDIA_STATE_DISCONNECTED; | |
1158 | INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue)); | |
1159 | } | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | void rndis_exit(void) | |
1165 | { | |
1166 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES | |
1167 | u8 i; | |
1168 | char name[20]; | |
1169 | ||
1170 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { | |
1171 | sprintf(name, NAME_TEMPLATE, i); | |
1172 | remove_proc_entry(name, NULL); | |
1173 | } | |
1174 | #endif | |
1175 | } |