Commit | Line | Data |
---|---|---|
7e27f18c | 1 | /* |
1da177e4 | 2 | * RNDIS MSG parser |
7e27f18c | 3 | * |
1da177e4 | 4 | * Authors: Benedikt Spranger, Pengutronix |
7e27f18c DB |
5 | * Robert Schwebel, Pengutronix |
6 | * | |
1da177e4 LT |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License | |
7e27f18c DB |
9 | * version 2, as published by the Free Software Foundation. |
10 | * | |
1da177e4 LT |
11 | * This software was originally developed in conformance with |
12 | * Microsoft's Remote NDIS Specification License Agreement. | |
7e27f18c | 13 | * |
1da177e4 LT |
14 | * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de> |
15 | * Fixed message length bug in init_response | |
7e27f18c | 16 | * |
1da177e4 | 17 | * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de> |
7e27f18c | 18 | * Fixed rndis_rm_hdr length bug. |
1da177e4 LT |
19 | * |
20 | * Copyright (C) 2004 by David Brownell | |
21 | * updates to merge with Linux 2.6, better match RNDIS spec | |
22 | */ | |
23 | ||
1da177e4 LT |
24 | #include <linux/module.h> |
25 | #include <linux/moduleparam.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/errno.h> | |
1da177e4 LT |
28 | #include <linux/init.h> |
29 | #include <linux/list.h> | |
30 | #include <linux/proc_fs.h> | |
5a0e3ad6 | 31 | #include <linux/slab.h> |
e184d5fc | 32 | #include <linux/seq_file.h> |
1da177e4 LT |
33 | #include <linux/netdevice.h> |
34 | ||
35 | #include <asm/io.h> | |
36 | #include <asm/byteorder.h> | |
6cdee106 | 37 | #include <asm/unaligned.h> |
1da177e4 LT |
38 | |
39 | ||
15b2d2b5 | 40 | #undef VERBOSE_DEBUG |
1da177e4 LT |
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 | |
1da177e4 | 53 | static int rndis_debug = 0; |
340600ab | 54 | module_param (rndis_debug, int, 0); |
1da177e4 | 55 | MODULE_PARM_DESC (rndis_debug, "enable debugging"); |
1da177e4 | 56 | #else |
1da177e4 | 57 | #define rndis_debug 0 |
1da177e4 LT |
58 | #endif |
59 | ||
60 | #define RNDIS_MAX_CONFIGS 1 | |
61 | ||
62 | ||
a1df4e45 | 63 | static rndis_params rndis_per_dev_params[RNDIS_MAX_CONFIGS]; |
1da177e4 LT |
64 | |
65 | /* Driver Version */ | |
a1df4e45 | 66 | static const __le32 rndis_driver_version = cpu_to_le32(1); |
1da177e4 LT |
67 | |
68 | /* Function Prototypes */ | |
a1df4e45 | 69 | static rndis_resp_t *rndis_add_response(int configNr, u32 length); |
1da177e4 LT |
70 | |
71 | ||
340600ab | 72 | /* supported OIDs */ |
a1df4e45 | 73 | static const u32 oid_supported_list[] = |
340600ab DB |
74 | { |
75 | /* the general stuff */ | |
8cdddc3f LW |
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, | |
7e27f18c | 91 | |
340600ab | 92 | /* the statistical stuff */ |
8cdddc3f LW |
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, | |
340600ab | 98 | #ifdef RNDIS_OPTIONAL_STATS |
8cdddc3f LW |
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, | |
340600ab DB |
113 | #endif /* RNDIS_OPTIONAL_STATS */ |
114 | ||
7e27f18c | 115 | /* mandatory 802.3 */ |
340600ab | 116 | /* the general stuff */ |
8cdddc3f | 117 | RNDIS_OID_802_3_PERMANENT_ADDRESS, |
4cc6c4d5 LW |
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, | |
7e27f18c | 122 | |
340600ab | 123 | /* the statistical stuff */ |
4cc6c4d5 LW |
124 | RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT, |
125 | RNDIS_OID_802_3_XMIT_ONE_COLLISION, | |
126 | RNDIS_OID_802_3_XMIT_MORE_COLLISIONS, | |
340600ab | 127 | #ifdef RNDIS_OPTIONAL_STATS |
4cc6c4d5 LW |
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, | |
340600ab DB |
135 | #endif /* RNDIS_OPTIONAL_STATS */ |
136 | ||
137 | #ifdef RNDIS_PM | |
15b2d2b5 DB |
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 | */ | |
340600ab DB |
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 | ||
1da177e4 | 162 | /* NDIS Functions */ |
a1df4e45 MD |
163 | static int gen_ndis_query_resp(int configNr, u32 OID, u8 *buf, |
164 | unsigned buf_len, rndis_resp_t *r) | |
1da177e4 | 165 | { |
a1df4e45 MD |
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; | |
28172739 | 172 | struct rtnl_link_stats64 temp; |
fdb93f8a | 173 | const struct rtnl_link_stats64 *stats; |
1da177e4 LT |
174 | |
175 | if (!r) return -ENOMEM; | |
a1df4e45 | 176 | resp = (rndis_query_cmplt_type *)r->buf; |
1da177e4 LT |
177 | |
178 | if (!resp) return -ENOMEM; | |
340600ab DB |
179 | |
180 | if (buf_len && rndis_debug > 1) { | |
33376c1c | 181 | pr_debug("query OID %08x value, len %d:\n", OID, buf_len); |
340600ab | 182 | for (i = 0; i < buf_len; i += 16) { |
33376c1c | 183 | pr_debug("%03d: %08x %08x %08x %08x\n", i, |
a5abdeaf HH |
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])); | |
340600ab DB |
188 | } |
189 | } | |
190 | ||
191 | /* response goes here, right after the header */ | |
a1df4e45 MD |
192 | outbuf = (__le32 *)&resp[1]; |
193 | resp->InformationBufferOffset = cpu_to_le32(16); | |
340600ab | 194 | |
15b2d2b5 | 195 | net = rndis_per_dev_params[configNr].dev; |
28172739 | 196 | stats = dev_get_stats(net, &temp); |
15b2d2b5 | 197 | |
1da177e4 LT |
198 | switch (OID) { |
199 | ||
200 | /* general oids (table 4-1) */ | |
201 | ||
202 | /* mandatory */ | |
8cdddc3f LW |
203 | case RNDIS_OID_GEN_SUPPORTED_LIST: |
204 | pr_debug("%s: RNDIS_OID_GEN_SUPPORTED_LIST\n", __func__); | |
a1df4e45 MD |
205 | length = sizeof(oid_supported_list); |
206 | count = length / sizeof(u32); | |
1da177e4 | 207 | for (i = 0; i < count; i++) |
a1df4e45 | 208 | outbuf[i] = cpu_to_le32(oid_supported_list[i]); |
1da177e4 LT |
209 | retval = 0; |
210 | break; | |
7e27f18c | 211 | |
1da177e4 | 212 | /* mandatory */ |
8cdddc3f LW |
213 | case RNDIS_OID_GEN_HARDWARE_STATUS: |
214 | pr_debug("%s: RNDIS_OID_GEN_HARDWARE_STATUS\n", __func__); | |
7e27f18c | 215 | /* Bogus question! |
1da177e4 | 216 | * Hardware must be ready to receive high level protocols. |
7e27f18c | 217 | * BTW: |
1da177e4 LT |
218 | * reddite ergo quae sunt Caesaris Caesari |
219 | * et quae sunt Dei Deo! | |
220 | */ | |
a1df4e45 | 221 | *outbuf = cpu_to_le32(0); |
1da177e4 LT |
222 | retval = 0; |
223 | break; | |
7e27f18c | 224 | |
1da177e4 | 225 | /* mandatory */ |
8cdddc3f LW |
226 | case RNDIS_OID_GEN_MEDIA_SUPPORTED: |
227 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_SUPPORTED\n", __func__); | |
a1df4e45 | 228 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium); |
1da177e4 LT |
229 | retval = 0; |
230 | break; | |
7e27f18c | 231 | |
1da177e4 | 232 | /* mandatory */ |
8cdddc3f LW |
233 | case RNDIS_OID_GEN_MEDIA_IN_USE: |
234 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_IN_USE\n", __func__); | |
1da177e4 | 235 | /* one medium, one transport... (maybe you do it better) */ |
a1df4e45 | 236 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr].medium); |
1da177e4 LT |
237 | retval = 0; |
238 | break; | |
7e27f18c | 239 | |
1da177e4 | 240 | /* mandatory */ |
8cdddc3f LW |
241 | case RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE: |
242 | pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_FRAME_SIZE\n", __func__); | |
a1df4e45 MD |
243 | if (rndis_per_dev_params[configNr].dev) { |
244 | *outbuf = cpu_to_le32( | |
245 | rndis_per_dev_params[configNr].dev->mtu); | |
1da177e4 | 246 | retval = 0; |
1da177e4 LT |
247 | } |
248 | break; | |
7e27f18c | 249 | |
1da177e4 | 250 | /* mandatory */ |
8cdddc3f | 251 | case RNDIS_OID_GEN_LINK_SPEED: |
340600ab | 252 | if (rndis_debug > 1) |
8cdddc3f | 253 | pr_debug("%s: RNDIS_OID_GEN_LINK_SPEED\n", __func__); |
a1df4e45 | 254 | if (rndis_per_dev_params[configNr].media_state |
17c51b6c | 255 | == RNDIS_MEDIA_STATE_DISCONNECTED) |
a1df4e45 | 256 | *outbuf = cpu_to_le32(0); |
1da177e4 | 257 | else |
a1df4e45 MD |
258 | *outbuf = cpu_to_le32( |
259 | rndis_per_dev_params[configNr].speed); | |
1da177e4 LT |
260 | retval = 0; |
261 | break; | |
262 | ||
263 | /* mandatory */ | |
8cdddc3f LW |
264 | case RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE: |
265 | pr_debug("%s: RNDIS_OID_GEN_TRANSMIT_BLOCK_SIZE\n", __func__); | |
a1df4e45 MD |
266 | if (rndis_per_dev_params[configNr].dev) { |
267 | *outbuf = cpu_to_le32( | |
268 | rndis_per_dev_params[configNr].dev->mtu); | |
1da177e4 LT |
269 | retval = 0; |
270 | } | |
271 | break; | |
7e27f18c | 272 | |
1da177e4 | 273 | /* mandatory */ |
8cdddc3f LW |
274 | case RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE: |
275 | pr_debug("%s: RNDIS_OID_GEN_RECEIVE_BLOCK_SIZE\n", __func__); | |
a1df4e45 MD |
276 | if (rndis_per_dev_params[configNr].dev) { |
277 | *outbuf = cpu_to_le32( | |
278 | rndis_per_dev_params[configNr].dev->mtu); | |
1da177e4 LT |
279 | retval = 0; |
280 | } | |
281 | break; | |
7e27f18c | 282 | |
1da177e4 | 283 | /* mandatory */ |
8cdddc3f LW |
284 | case RNDIS_OID_GEN_VENDOR_ID: |
285 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_ID\n", __func__); | |
a1df4e45 MD |
286 | *outbuf = cpu_to_le32( |
287 | rndis_per_dev_params[configNr].vendorID); | |
1da177e4 LT |
288 | retval = 0; |
289 | break; | |
7e27f18c | 290 | |
1da177e4 | 291 | /* mandatory */ |
8cdddc3f LW |
292 | case RNDIS_OID_GEN_VENDOR_DESCRIPTION: |
293 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_DESCRIPTION\n", __func__); | |
a1df4e45 MD |
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); | |
037d3656 MO |
300 | } else { |
301 | outbuf[0] = 0; | |
302 | } | |
1da177e4 LT |
303 | retval = 0; |
304 | break; | |
305 | ||
8cdddc3f LW |
306 | case RNDIS_OID_GEN_VENDOR_DRIVER_VERSION: |
307 | pr_debug("%s: RNDIS_OID_GEN_VENDOR_DRIVER_VERSION\n", __func__); | |
1da177e4 | 308 | /* Created as LE */ |
340600ab | 309 | *outbuf = rndis_driver_version; |
1da177e4 LT |
310 | retval = 0; |
311 | break; | |
312 | ||
313 | /* mandatory */ | |
8cdddc3f LW |
314 | case RNDIS_OID_GEN_CURRENT_PACKET_FILTER: |
315 | pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER\n", __func__); | |
a1df4e45 | 316 | *outbuf = cpu_to_le32(*rndis_per_dev_params[configNr].filter); |
1da177e4 LT |
317 | retval = 0; |
318 | break; | |
319 | ||
320 | /* mandatory */ | |
8cdddc3f LW |
321 | case RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE: |
322 | pr_debug("%s: RNDIS_OID_GEN_MAXIMUM_TOTAL_SIZE\n", __func__); | |
35c26c2c | 323 | *outbuf = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE); |
1da177e4 LT |
324 | retval = 0; |
325 | break; | |
326 | ||
327 | /* mandatory */ | |
8cdddc3f | 328 | case RNDIS_OID_GEN_MEDIA_CONNECT_STATUS: |
340600ab | 329 | if (rndis_debug > 1) |
8cdddc3f | 330 | pr_debug("%s: RNDIS_OID_GEN_MEDIA_CONNECT_STATUS\n", __func__); |
a1df4e45 | 331 | *outbuf = cpu_to_le32(rndis_per_dev_params[configNr] |
1da177e4 LT |
332 | .media_state); |
333 | retval = 0; | |
334 | break; | |
335 | ||
8cdddc3f LW |
336 | case RNDIS_OID_GEN_PHYSICAL_MEDIUM: |
337 | pr_debug("%s: RNDIS_OID_GEN_PHYSICAL_MEDIUM\n", __func__); | |
a1df4e45 | 338 | *outbuf = cpu_to_le32(0); |
1da177e4 LT |
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 | */ | |
8cdddc3f LW |
346 | case RNDIS_OID_GEN_MAC_OPTIONS: /* from WinME */ |
347 | pr_debug("%s: RNDIS_OID_GEN_MAC_OPTIONS\n", __func__); | |
35c26c2c | 348 | *outbuf = cpu_to_le32( |
e20289ed LW |
349 | RNDIS_MAC_OPTION_RECEIVE_SERIALIZED |
350 | | RNDIS_MAC_OPTION_FULL_DUPLEX); | |
1da177e4 LT |
351 | retval = 0; |
352 | break; | |
353 | ||
354 | /* statistics OIDs (table 4-2) */ | |
355 | ||
356 | /* mandatory */ | |
8cdddc3f | 357 | case RNDIS_OID_GEN_XMIT_OK: |
340600ab | 358 | if (rndis_debug > 1) |
8cdddc3f | 359 | pr_debug("%s: RNDIS_OID_GEN_XMIT_OK\n", __func__); |
15b2d2b5 DB |
360 | if (stats) { |
361 | *outbuf = cpu_to_le32(stats->tx_packets | |
362 | - stats->tx_errors - stats->tx_dropped); | |
1da177e4 | 363 | retval = 0; |
1da177e4 LT |
364 | } |
365 | break; | |
366 | ||
367 | /* mandatory */ | |
8cdddc3f | 368 | case RNDIS_OID_GEN_RCV_OK: |
340600ab | 369 | if (rndis_debug > 1) |
8cdddc3f | 370 | pr_debug("%s: RNDIS_OID_GEN_RCV_OK\n", __func__); |
15b2d2b5 DB |
371 | if (stats) { |
372 | *outbuf = cpu_to_le32(stats->rx_packets | |
373 | - stats->rx_errors - stats->rx_dropped); | |
1da177e4 | 374 | retval = 0; |
1da177e4 LT |
375 | } |
376 | break; | |
7e27f18c | 377 | |
1da177e4 | 378 | /* mandatory */ |
8cdddc3f | 379 | case RNDIS_OID_GEN_XMIT_ERROR: |
340600ab | 380 | if (rndis_debug > 1) |
8cdddc3f | 381 | pr_debug("%s: RNDIS_OID_GEN_XMIT_ERROR\n", __func__); |
15b2d2b5 DB |
382 | if (stats) { |
383 | *outbuf = cpu_to_le32(stats->tx_errors); | |
1da177e4 | 384 | retval = 0; |
1da177e4 LT |
385 | } |
386 | break; | |
7e27f18c | 387 | |
1da177e4 | 388 | /* mandatory */ |
8cdddc3f | 389 | case RNDIS_OID_GEN_RCV_ERROR: |
340600ab | 390 | if (rndis_debug > 1) |
8cdddc3f | 391 | pr_debug("%s: RNDIS_OID_GEN_RCV_ERROR\n", __func__); |
15b2d2b5 DB |
392 | if (stats) { |
393 | *outbuf = cpu_to_le32(stats->rx_errors); | |
1da177e4 | 394 | retval = 0; |
1da177e4 LT |
395 | } |
396 | break; | |
7e27f18c | 397 | |
1da177e4 | 398 | /* mandatory */ |
8cdddc3f LW |
399 | case RNDIS_OID_GEN_RCV_NO_BUFFER: |
400 | pr_debug("%s: RNDIS_OID_GEN_RCV_NO_BUFFER\n", __func__); | |
15b2d2b5 DB |
401 | if (stats) { |
402 | *outbuf = cpu_to_le32(stats->rx_dropped); | |
1da177e4 | 403 | retval = 0; |
1da177e4 LT |
404 | } |
405 | break; | |
7e27f18c | 406 | |
1da177e4 LT |
407 | /* ieee802.3 OIDs (table 4-3) */ |
408 | ||
409 | /* mandatory */ | |
8cdddc3f | 410 | case RNDIS_OID_802_3_PERMANENT_ADDRESS: |
4cc6c4d5 | 411 | pr_debug("%s: RNDIS_OID_802_3_PERMANENT_ADDRESS\n", __func__); |
a1df4e45 | 412 | if (rndis_per_dev_params[configNr].dev) { |
1da177e4 | 413 | length = ETH_ALEN; |
a1df4e45 MD |
414 | memcpy(outbuf, |
415 | rndis_per_dev_params[configNr].host_mac, | |
1da177e4 LT |
416 | length); |
417 | retval = 0; | |
1da177e4 LT |
418 | } |
419 | break; | |
7e27f18c | 420 | |
1da177e4 | 421 | /* mandatory */ |
4cc6c4d5 LW |
422 | case RNDIS_OID_802_3_CURRENT_ADDRESS: |
423 | pr_debug("%s: RNDIS_OID_802_3_CURRENT_ADDRESS\n", __func__); | |
a1df4e45 | 424 | if (rndis_per_dev_params[configNr].dev) { |
1da177e4 | 425 | length = ETH_ALEN; |
a1df4e45 | 426 | memcpy(outbuf, |
1da177e4 LT |
427 | rndis_per_dev_params [configNr].host_mac, |
428 | length); | |
429 | retval = 0; | |
430 | } | |
431 | break; | |
7e27f18c | 432 | |
1da177e4 | 433 | /* mandatory */ |
4cc6c4d5 LW |
434 | case RNDIS_OID_802_3_MULTICAST_LIST: |
435 | pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__); | |
1da177e4 | 436 | /* Multicast base address only */ |
a1df4e45 | 437 | *outbuf = cpu_to_le32(0xE0000000); |
1da177e4 LT |
438 | retval = 0; |
439 | break; | |
7e27f18c | 440 | |
1da177e4 | 441 | /* mandatory */ |
4cc6c4d5 LW |
442 | case RNDIS_OID_802_3_MAXIMUM_LIST_SIZE: |
443 | pr_debug("%s: RNDIS_OID_802_3_MAXIMUM_LIST_SIZE\n", __func__); | |
1da177e4 | 444 | /* Multicast base address only */ |
a1df4e45 | 445 | *outbuf = cpu_to_le32(1); |
1da177e4 LT |
446 | retval = 0; |
447 | break; | |
7e27f18c | 448 | |
4cc6c4d5 LW |
449 | case RNDIS_OID_802_3_MAC_OPTIONS: |
450 | pr_debug("%s: RNDIS_OID_802_3_MAC_OPTIONS\n", __func__); | |
6bc2146e QC |
451 | *outbuf = cpu_to_le32(0); |
452 | retval = 0; | |
1da177e4 LT |
453 | break; |
454 | ||
455 | /* ieee802.3 statistics OIDs (table 4-4) */ | |
456 | ||
457 | /* mandatory */ | |
4cc6c4d5 LW |
458 | case RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT: |
459 | pr_debug("%s: RNDIS_OID_802_3_RCV_ERROR_ALIGNMENT\n", __func__); | |
15b2d2b5 DB |
460 | if (stats) { |
461 | *outbuf = cpu_to_le32(stats->rx_frame_errors); | |
1da177e4 LT |
462 | retval = 0; |
463 | } | |
464 | break; | |
7e27f18c | 465 | |
1da177e4 | 466 | /* mandatory */ |
4cc6c4d5 LW |
467 | case RNDIS_OID_802_3_XMIT_ONE_COLLISION: |
468 | pr_debug("%s: RNDIS_OID_802_3_XMIT_ONE_COLLISION\n", __func__); | |
a1df4e45 | 469 | *outbuf = cpu_to_le32(0); |
1da177e4 LT |
470 | retval = 0; |
471 | break; | |
7e27f18c | 472 | |
1da177e4 | 473 | /* mandatory */ |
4cc6c4d5 LW |
474 | case RNDIS_OID_802_3_XMIT_MORE_COLLISIONS: |
475 | pr_debug("%s: RNDIS_OID_802_3_XMIT_MORE_COLLISIONS\n", __func__); | |
a1df4e45 | 476 | *outbuf = cpu_to_le32(0); |
1da177e4 LT |
477 | retval = 0; |
478 | break; | |
7e27f18c | 479 | |
1da177e4 | 480 | default: |
00274921 | 481 | pr_warning("%s: query unknown OID 0x%08X\n", |
441b62c1 | 482 | __func__, OID); |
1da177e4 | 483 | } |
340600ab DB |
484 | if (retval < 0) |
485 | length = 0; | |
7e27f18c | 486 | |
a1df4e45 MD |
487 | resp->InformationBufferLength = cpu_to_le32(length); |
488 | r->length = length + sizeof(*resp); | |
489 | resp->MessageLength = cpu_to_le32(r->length); | |
1da177e4 LT |
490 | return retval; |
491 | } | |
492 | ||
a1df4e45 MD |
493 | static int gen_ndis_set_resp(u8 configNr, u32 OID, u8 *buf, u32 buf_len, |
494 | rndis_resp_t *r) | |
1da177e4 | 495 | { |
a1df4e45 MD |
496 | rndis_set_cmplt_type *resp; |
497 | int i, retval = -ENOTSUPP; | |
498 | struct rndis_params *params; | |
1da177e4 LT |
499 | |
500 | if (!r) | |
501 | return -ENOMEM; | |
a1df4e45 | 502 | resp = (rndis_set_cmplt_type *)r->buf; |
1da177e4 LT |
503 | if (!resp) |
504 | return -ENOMEM; | |
505 | ||
340600ab | 506 | if (buf_len && rndis_debug > 1) { |
33376c1c | 507 | pr_debug("set OID %08x value, len %d:\n", OID, buf_len); |
340600ab | 508 | for (i = 0; i < buf_len; i += 16) { |
33376c1c | 509 | pr_debug("%03d: %08x %08x %08x %08x\n", i, |
a5abdeaf HH |
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])); | |
340600ab | 514 | } |
1da177e4 LT |
515 | } |
516 | ||
a1df4e45 | 517 | params = &rndis_per_dev_params[configNr]; |
1da177e4 | 518 | switch (OID) { |
8cdddc3f | 519 | case RNDIS_OID_GEN_CURRENT_PACKET_FILTER: |
1da177e4 | 520 | |
340600ab DB |
521 | /* these NDIS_PACKET_TYPE_* bitflags are shared with |
522 | * cdc_filter; it's not RNDIS-specific | |
1da177e4 LT |
523 | * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in: |
524 | * PROMISCUOUS, DIRECTED, | |
525 | * MULTICAST, ALL_MULTICAST, BROADCAST | |
526 | */ | |
a5abdeaf | 527 | *params->filter = (u16)get_unaligned_le32(buf); |
8cdddc3f | 528 | pr_debug("%s: RNDIS_OID_GEN_CURRENT_PACKET_FILTER %08x\n", |
441b62c1 | 529 | __func__, *params->filter); |
1da177e4 LT |
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 | */ | |
340600ab DB |
535 | retval = 0; |
536 | if (*params->filter) { | |
1da177e4 LT |
537 | params->state = RNDIS_DATA_INITIALIZED; |
538 | netif_carrier_on(params->dev); | |
539 | if (netif_running(params->dev)) | |
a1df4e45 | 540 | netif_wake_queue(params->dev); |
1da177e4 LT |
541 | } else { |
542 | params->state = RNDIS_INITIALIZED; | |
a1df4e45 MD |
543 | netif_carrier_off(params->dev); |
544 | netif_stop_queue(params->dev); | |
1da177e4 LT |
545 | } |
546 | break; | |
7e27f18c | 547 | |
4cc6c4d5 | 548 | case RNDIS_OID_802_3_MULTICAST_LIST: |
7e27f18c | 549 | /* I think we can ignore this */ |
4cc6c4d5 | 550 | pr_debug("%s: RNDIS_OID_802_3_MULTICAST_LIST\n", __func__); |
1da177e4 LT |
551 | retval = 0; |
552 | break; | |
340600ab | 553 | |
1da177e4 | 554 | default: |
00274921 | 555 | pr_warning("%s: set unknown OID 0x%08X, size %d\n", |
441b62c1 | 556 | __func__, OID, buf_len); |
1da177e4 | 557 | } |
7e27f18c | 558 | |
1da177e4 LT |
559 | return retval; |
560 | } | |
561 | ||
7e27f18c DB |
562 | /* |
563 | * Response Functions | |
1da177e4 LT |
564 | */ |
565 | ||
a1df4e45 | 566 | static int rndis_init_response(int configNr, rndis_init_msg_type *buf) |
1da177e4 | 567 | { |
a1df4e45 MD |
568 | rndis_init_cmplt_type *resp; |
569 | rndis_resp_t *r; | |
570 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
7e27f18c | 571 | |
15b2d2b5 DB |
572 | if (!params->dev) |
573 | return -ENOTSUPP; | |
7e27f18c | 574 | |
a1df4e45 | 575 | r = rndis_add_response(configNr, sizeof(rndis_init_cmplt_type)); |
340600ab DB |
576 | if (!r) |
577 | return -ENOMEM; | |
a1df4e45 | 578 | resp = (rndis_init_cmplt_type *)r->buf; |
7e27f18c | 579 | |
51491167 | 580 | resp->MessageType = cpu_to_le32(RNDIS_MSG_INIT_C); |
a1df4e45 | 581 | resp->MessageLength = cpu_to_le32(52); |
1da177e4 | 582 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
a1df4e45 MD |
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( | |
15b2d2b5 | 590 | params->dev->mtu |
a1df4e45 MD |
591 | + sizeof(struct ethhdr) |
592 | + sizeof(struct rndis_packet_msg_type) | |
1da177e4 | 593 | + 22); |
a1df4e45 MD |
594 | resp->PacketAlignmentFactor = cpu_to_le32(0); |
595 | resp->AFListOffset = cpu_to_le32(0); | |
596 | resp->AFListSize = cpu_to_le32(0); | |
7e27f18c | 597 | |
15b2d2b5 | 598 | params->resp_avail(params->v); |
1da177e4 LT |
599 | return 0; |
600 | } | |
601 | ||
a1df4e45 | 602 | static int rndis_query_response(int configNr, rndis_query_msg_type *buf) |
1da177e4 LT |
603 | { |
604 | rndis_query_cmplt_type *resp; | |
a1df4e45 MD |
605 | rndis_resp_t *r; |
606 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
7e27f18c | 607 | |
33376c1c | 608 | /* pr_debug("%s: OID = %08X\n", __func__, cpu_to_le32(buf->OID)); */ |
15b2d2b5 DB |
609 | if (!params->dev) |
610 | return -ENOTSUPP; | |
7e27f18c | 611 | |
8763716b ST |
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 | |
1da177e4 | 617 | */ |
a1df4e45 MD |
618 | r = rndis_add_response(configNr, |
619 | sizeof(oid_supported_list) + sizeof(rndis_query_cmplt_type)); | |
340600ab DB |
620 | if (!r) |
621 | return -ENOMEM; | |
a1df4e45 | 622 | resp = (rndis_query_cmplt_type *)r->buf; |
7e27f18c | 623 | |
51491167 | 624 | resp->MessageType = cpu_to_le32(RNDIS_MSG_QUERY_C); |
1da177e4 | 625 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
7e27f18c | 626 | |
a1df4e45 | 627 | if (gen_ndis_query_resp(configNr, le32_to_cpu(buf->OID), |
340600ab | 628 | le32_to_cpu(buf->InformationBufferOffset) |
a1df4e45 | 629 | + 8 + (u8 *)buf, |
340600ab DB |
630 | le32_to_cpu(buf->InformationBufferLength), |
631 | r)) { | |
1da177e4 | 632 | /* OID not supported */ |
a1df4e45 MD |
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); | |
1da177e4 | 637 | } else |
a1df4e45 | 638 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); |
7e27f18c | 639 | |
15b2d2b5 | 640 | params->resp_avail(params->v); |
1da177e4 LT |
641 | return 0; |
642 | } | |
643 | ||
a1df4e45 | 644 | static int rndis_set_response(int configNr, rndis_set_msg_type *buf) |
1da177e4 | 645 | { |
a1df4e45 MD |
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; | |
7e27f18c | 650 | |
a1df4e45 | 651 | r = rndis_add_response(configNr, sizeof(rndis_set_cmplt_type)); |
340600ab DB |
652 | if (!r) |
653 | return -ENOMEM; | |
a1df4e45 | 654 | resp = (rndis_set_cmplt_type *)r->buf; |
1da177e4 | 655 | |
a1df4e45 MD |
656 | BufLength = le32_to_cpu(buf->InformationBufferLength); |
657 | BufOffset = le32_to_cpu(buf->InformationBufferOffset); | |
1da177e4 | 658 | |
15b2d2b5 | 659 | #ifdef VERBOSE_DEBUG |
33376c1c DB |
660 | pr_debug("%s: Length: %d\n", __func__, BufLength); |
661 | pr_debug("%s: Offset: %d\n", __func__, BufOffset); | |
662 | pr_debug("%s: InfoBuffer: ", __func__); | |
7e27f18c | 663 | |
1da177e4 | 664 | for (i = 0; i < BufLength; i++) { |
33376c1c | 665 | pr_debug("%02x ", *(((u8 *) buf) + i + 8 + BufOffset)); |
1da177e4 | 666 | } |
7e27f18c | 667 | |
33376c1c | 668 | pr_debug("\n"); |
1da177e4 | 669 | #endif |
7e27f18c | 670 | |
51491167 | 671 | resp->MessageType = cpu_to_le32(RNDIS_MSG_SET_C); |
a1df4e45 | 672 | resp->MessageLength = cpu_to_le32(16); |
1da177e4 | 673 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
a1df4e45 MD |
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); | |
7e27f18c | 677 | else |
a1df4e45 | 678 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); |
7e27f18c | 679 | |
15b2d2b5 | 680 | params->resp_avail(params->v); |
1da177e4 LT |
681 | return 0; |
682 | } | |
683 | ||
a1df4e45 | 684 | static int rndis_reset_response(int configNr, rndis_reset_msg_type *buf) |
1da177e4 | 685 | { |
a1df4e45 MD |
686 | rndis_reset_cmplt_type *resp; |
687 | rndis_resp_t *r; | |
688 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
7e27f18c | 689 | |
a1df4e45 | 690 | r = rndis_add_response(configNr, sizeof(rndis_reset_cmplt_type)); |
340600ab DB |
691 | if (!r) |
692 | return -ENOMEM; | |
a1df4e45 | 693 | resp = (rndis_reset_cmplt_type *)r->buf; |
7e27f18c | 694 | |
51491167 | 695 | resp->MessageType = cpu_to_le32(RNDIS_MSG_RESET_C); |
a1df4e45 MD |
696 | resp->MessageLength = cpu_to_le32(16); |
697 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); | |
1da177e4 | 698 | /* resent information */ |
a1df4e45 | 699 | resp->AddressingReset = cpu_to_le32(1); |
7e27f18c | 700 | |
15b2d2b5 | 701 | params->resp_avail(params->v); |
1da177e4 LT |
702 | return 0; |
703 | } | |
704 | ||
a1df4e45 MD |
705 | static int rndis_keepalive_response(int configNr, |
706 | rndis_keepalive_msg_type *buf) | |
1da177e4 | 707 | { |
a1df4e45 MD |
708 | rndis_keepalive_cmplt_type *resp; |
709 | rndis_resp_t *r; | |
710 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
1da177e4 LT |
711 | |
712 | /* host "should" check only in RNDIS_DATA_INITIALIZED state */ | |
713 | ||
a1df4e45 | 714 | r = rndis_add_response(configNr, sizeof(rndis_keepalive_cmplt_type)); |
340600ab DB |
715 | if (!r) |
716 | return -ENOMEM; | |
a1df4e45 | 717 | resp = (rndis_keepalive_cmplt_type *)r->buf; |
7e27f18c | 718 | |
51491167 | 719 | resp->MessageType = cpu_to_le32(RNDIS_MSG_KEEPALIVE_C); |
a1df4e45 | 720 | resp->MessageLength = cpu_to_le32(16); |
1da177e4 | 721 | resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ |
a1df4e45 | 722 | resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); |
7e27f18c | 723 | |
15b2d2b5 | 724 | params->resp_avail(params->v); |
1da177e4 LT |
725 | return 0; |
726 | } | |
727 | ||
728 | ||
7e27f18c DB |
729 | /* |
730 | * Device to Host Comunication | |
1da177e4 | 731 | */ |
a1df4e45 | 732 | static int rndis_indicate_status_msg(int configNr, u32 status) |
1da177e4 | 733 | { |
a1df4e45 MD |
734 | rndis_indicate_status_msg_type *resp; |
735 | rndis_resp_t *r; | |
736 | struct rndis_params *params = rndis_per_dev_params + configNr; | |
7e27f18c | 737 | |
15b2d2b5 | 738 | if (params->state == RNDIS_UNINITIALIZED) |
7e27f18c DB |
739 | return -ENOTSUPP; |
740 | ||
a1df4e45 MD |
741 | r = rndis_add_response(configNr, |
742 | sizeof(rndis_indicate_status_msg_type)); | |
340600ab DB |
743 | if (!r) |
744 | return -ENOMEM; | |
a1df4e45 | 745 | resp = (rndis_indicate_status_msg_type *)r->buf; |
7e27f18c | 746 | |
51491167 | 747 | resp->MessageType = cpu_to_le32(RNDIS_MSG_INDICATE); |
a1df4e45 MD |
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); | |
7e27f18c | 752 | |
15b2d2b5 | 753 | params->resp_avail(params->v); |
1da177e4 LT |
754 | return 0; |
755 | } | |
756 | ||
a1df4e45 | 757 | int rndis_signal_connect(int configNr) |
1da177e4 | 758 | { |
a1df4e45 | 759 | rndis_per_dev_params[configNr].media_state |
17c51b6c | 760 | = RNDIS_MEDIA_STATE_CONNECTED; |
a1df4e45 | 761 | return rndis_indicate_status_msg(configNr, |
1da177e4 LT |
762 | RNDIS_STATUS_MEDIA_CONNECT); |
763 | } | |
764 | ||
a1df4e45 | 765 | int rndis_signal_disconnect(int configNr) |
1da177e4 | 766 | { |
a1df4e45 | 767 | rndis_per_dev_params[configNr].media_state |
17c51b6c | 768 | = RNDIS_MEDIA_STATE_DISCONNECTED; |
a1df4e45 | 769 | return rndis_indicate_status_msg(configNr, |
1da177e4 LT |
770 | RNDIS_STATUS_MEDIA_DISCONNECT); |
771 | } | |
772 | ||
a1df4e45 | 773 | void rndis_uninit(int configNr) |
340600ab | 774 | { |
486e2df6 DB |
775 | u8 *buf; |
776 | u32 length; | |
777 | ||
340600ab DB |
778 | if (configNr >= RNDIS_MAX_CONFIGS) |
779 | return; | |
a1df4e45 | 780 | rndis_per_dev_params[configNr].state = RNDIS_UNINITIALIZED; |
486e2df6 DB |
781 | |
782 | /* drain the response queue */ | |
783 | while ((buf = rndis_get_next_response(configNr, &length))) | |
784 | rndis_free_response(configNr, buf); | |
340600ab DB |
785 | } |
786 | ||
a1df4e45 | 787 | void rndis_set_host_mac(int configNr, const u8 *addr) |
1da177e4 | 788 | { |
a1df4e45 | 789 | rndis_per_dev_params[configNr].host_mac = addr; |
1da177e4 LT |
790 | } |
791 | ||
7e27f18c DB |
792 | /* |
793 | * Message Parser | |
1da177e4 | 794 | */ |
a1df4e45 | 795 | int rndis_msg_parser(u8 configNr, u8 *buf) |
1da177e4 LT |
796 | { |
797 | u32 MsgType, MsgLength; | |
798 | __le32 *tmp; | |
a1df4e45 | 799 | struct rndis_params *params; |
7e27f18c | 800 | |
1da177e4 LT |
801 | if (!buf) |
802 | return -ENOMEM; | |
7e27f18c | 803 | |
a1df4e45 | 804 | tmp = (__le32 *)buf; |
a5abdeaf HH |
805 | MsgType = get_unaligned_le32(tmp++); |
806 | MsgLength = get_unaligned_le32(tmp++); | |
7e27f18c | 807 | |
1da177e4 LT |
808 | if (configNr >= RNDIS_MAX_CONFIGS) |
809 | return -ENOTSUPP; | |
a1df4e45 | 810 | params = &rndis_per_dev_params[configNr]; |
7e27f18c | 811 | |
340600ab DB |
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 | ||
1da177e4 | 817 | /* For USB: responses may take up to 10 seconds */ |
340600ab | 818 | switch (MsgType) { |
51491167 LW |
819 | case RNDIS_MSG_INIT: |
820 | pr_debug("%s: RNDIS_MSG_INIT\n", | |
a1df4e45 | 821 | __func__); |
1da177e4 | 822 | params->state = RNDIS_INITIALIZED; |
a1df4e45 MD |
823 | return rndis_init_response(configNr, |
824 | (rndis_init_msg_type *)buf); | |
7e27f18c | 825 | |
51491167 LW |
826 | case RNDIS_MSG_HALT: |
827 | pr_debug("%s: RNDIS_MSG_HALT\n", | |
a1df4e45 | 828 | __func__); |
1da177e4 LT |
829 | params->state = RNDIS_UNINITIALIZED; |
830 | if (params->dev) { | |
a1df4e45 MD |
831 | netif_carrier_off(params->dev); |
832 | netif_stop_queue(params->dev); | |
1da177e4 LT |
833 | } |
834 | return 0; | |
7e27f18c | 835 | |
51491167 | 836 | case RNDIS_MSG_QUERY: |
a1df4e45 MD |
837 | return rndis_query_response(configNr, |
838 | (rndis_query_msg_type *)buf); | |
7e27f18c | 839 | |
51491167 | 840 | case RNDIS_MSG_SET: |
a1df4e45 MD |
841 | return rndis_set_response(configNr, |
842 | (rndis_set_msg_type *)buf); | |
7e27f18c | 843 | |
51491167 LW |
844 | case RNDIS_MSG_RESET: |
845 | pr_debug("%s: RNDIS_MSG_RESET\n", | |
a1df4e45 MD |
846 | __func__); |
847 | return rndis_reset_response(configNr, | |
848 | (rndis_reset_msg_type *)buf); | |
1da177e4 | 849 | |
51491167 | 850 | case RNDIS_MSG_KEEPALIVE: |
1da177e4 | 851 | /* For USB: host does this every 5 seconds */ |
340600ab | 852 | if (rndis_debug > 1) |
51491167 | 853 | pr_debug("%s: RNDIS_MSG_KEEPALIVE\n", |
a1df4e45 MD |
854 | __func__); |
855 | return rndis_keepalive_response(configNr, | |
7e27f18c | 856 | (rndis_keepalive_msg_type *) |
1da177e4 | 857 | buf); |
7e27f18c DB |
858 | |
859 | default: | |
1da177e4 LT |
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 | */ | |
00274921 | 864 | pr_warning("%s: unknown RNDIS message 0x%08X len %d\n", |
a1df4e45 | 865 | __func__, MsgType, MsgLength); |
d3091cff AS |
866 | print_hex_dump_bytes(__func__, DUMP_PREFIX_OFFSET, |
867 | buf, MsgLength); | |
1da177e4 LT |
868 | break; |
869 | } | |
7e27f18c | 870 | |
1da177e4 LT |
871 | return -ENOTSUPP; |
872 | } | |
873 | ||
15b2d2b5 | 874 | int rndis_register(void (*resp_avail)(void *v), void *v) |
1da177e4 LT |
875 | { |
876 | u8 i; | |
7e27f18c | 877 | |
15b2d2b5 DB |
878 | if (!resp_avail) |
879 | return -EINVAL; | |
880 | ||
1da177e4 | 881 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
a1df4e45 MD |
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; | |
33376c1c | 886 | pr_debug("%s: configNr = %d\n", __func__, i); |
1da177e4 LT |
887 | return i; |
888 | } | |
889 | } | |
33376c1c | 890 | pr_debug("failed\n"); |
7e27f18c | 891 | |
15b2d2b5 | 892 | return -ENODEV; |
1da177e4 LT |
893 | } |
894 | ||
a1df4e45 | 895 | void rndis_deregister(int configNr) |
1da177e4 | 896 | { |
a1df4e45 | 897 | pr_debug("%s:\n", __func__); |
7e27f18c | 898 | |
1da177e4 | 899 | if (configNr >= RNDIS_MAX_CONFIGS) return; |
a1df4e45 | 900 | rndis_per_dev_params[configNr].used = 0; |
1da177e4 LT |
901 | } |
902 | ||
15b2d2b5 | 903 | int rndis_set_param_dev(u8 configNr, struct net_device *dev, u16 *cdc_filter) |
1da177e4 | 904 | { |
33376c1c | 905 | pr_debug("%s:\n", __func__); |
15b2d2b5 DB |
906 | if (!dev) |
907 | return -EINVAL; | |
1da177e4 | 908 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; |
7e27f18c | 909 | |
a1df4e45 MD |
910 | rndis_per_dev_params[configNr].dev = dev; |
911 | rndis_per_dev_params[configNr].filter = cdc_filter; | |
7e27f18c | 912 | |
1da177e4 LT |
913 | return 0; |
914 | } | |
915 | ||
a1df4e45 | 916 | int rndis_set_param_vendor(u8 configNr, u32 vendorID, const char *vendorDescr) |
1da177e4 | 917 | { |
33376c1c | 918 | pr_debug("%s:\n", __func__); |
1da177e4 LT |
919 | if (!vendorDescr) return -1; |
920 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; | |
7e27f18c | 921 | |
a1df4e45 MD |
922 | rndis_per_dev_params[configNr].vendorID = vendorID; |
923 | rndis_per_dev_params[configNr].vendorDescr = vendorDescr; | |
7e27f18c | 924 | |
1da177e4 LT |
925 | return 0; |
926 | } | |
927 | ||
a1df4e45 | 928 | int rndis_set_param_medium(u8 configNr, u32 medium, u32 speed) |
1da177e4 | 929 | { |
33376c1c | 930 | pr_debug("%s: %u %u\n", __func__, medium, speed); |
1da177e4 | 931 | if (configNr >= RNDIS_MAX_CONFIGS) return -1; |
7e27f18c | 932 | |
a1df4e45 MD |
933 | rndis_per_dev_params[configNr].medium = medium; |
934 | rndis_per_dev_params[configNr].speed = speed; | |
7e27f18c | 935 | |
1da177e4 LT |
936 | return 0; |
937 | } | |
938 | ||
a1df4e45 | 939 | void rndis_add_hdr(struct sk_buff *skb) |
1da177e4 | 940 | { |
a1df4e45 | 941 | struct rndis_packet_msg_type *header; |
1da177e4 LT |
942 | |
943 | if (!skb) | |
944 | return; | |
a1df4e45 MD |
945 | header = (void *)skb_push(skb, sizeof(*header)); |
946 | memset(header, 0, sizeof *header); | |
51491167 | 947 | header->MessageType = cpu_to_le32(RNDIS_MSG_PACKET); |
1da177e4 | 948 | header->MessageLength = cpu_to_le32(skb->len); |
a1df4e45 MD |
949 | header->DataOffset = cpu_to_le32(36); |
950 | header->DataLength = cpu_to_le32(skb->len - sizeof(*header)); | |
1da177e4 LT |
951 | } |
952 | ||
a1df4e45 | 953 | void rndis_free_response(int configNr, u8 *buf) |
1da177e4 | 954 | { |
a1df4e45 MD |
955 | rndis_resp_t *r; |
956 | struct list_head *act, *tmp; | |
7e27f18c | 957 | |
a1df4e45 MD |
958 | list_for_each_safe(act, tmp, |
959 | &(rndis_per_dev_params[configNr].resp_queue)) | |
1da177e4 | 960 | { |
a1df4e45 | 961 | r = list_entry(act, rndis_resp_t, list); |
1da177e4 | 962 | if (r && r->buf == buf) { |
a1df4e45 MD |
963 | list_del(&r->list); |
964 | kfree(r); | |
1da177e4 LT |
965 | } |
966 | } | |
967 | } | |
968 | ||
a1df4e45 | 969 | u8 *rndis_get_next_response(int configNr, u32 *length) |
1da177e4 | 970 | { |
a1df4e45 MD |
971 | rndis_resp_t *r; |
972 | struct list_head *act, *tmp; | |
7e27f18c | 973 | |
1da177e4 | 974 | if (!length) return NULL; |
7e27f18c | 975 | |
a1df4e45 MD |
976 | list_for_each_safe(act, tmp, |
977 | &(rndis_per_dev_params[configNr].resp_queue)) | |
1da177e4 | 978 | { |
a1df4e45 | 979 | r = list_entry(act, rndis_resp_t, list); |
1da177e4 LT |
980 | if (!r->send) { |
981 | r->send = 1; | |
982 | *length = r->length; | |
983 | return r->buf; | |
984 | } | |
985 | } | |
7e27f18c | 986 | |
1da177e4 LT |
987 | return NULL; |
988 | } | |
989 | ||
a1df4e45 | 990 | static rndis_resp_t *rndis_add_response(int configNr, u32 length) |
1da177e4 | 991 | { |
a1df4e45 | 992 | rndis_resp_t *r; |
7e27f18c | 993 | |
a1df4e45 MD |
994 | /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */ |
995 | r = kmalloc(sizeof(rndis_resp_t) + length, GFP_ATOMIC); | |
1da177e4 | 996 | if (!r) return NULL; |
7e27f18c | 997 | |
a1df4e45 | 998 | r->buf = (u8 *)(r + 1); |
1da177e4 LT |
999 | r->length = length; |
1000 | r->send = 0; | |
7e27f18c | 1001 | |
a1df4e45 MD |
1002 | list_add_tail(&r->list, |
1003 | &(rndis_per_dev_params[configNr].resp_queue)); | |
1da177e4 LT |
1004 | return r; |
1005 | } | |
1006 | ||
9b39e9dd BN |
1007 | int rndis_rm_hdr(struct gether *port, |
1008 | struct sk_buff *skb, | |
1009 | struct sk_buff_head *list) | |
1da177e4 | 1010 | { |
6cdee106 | 1011 | /* tmp points to a struct rndis_packet_msg_type */ |
a1df4e45 | 1012 | __le32 *tmp = (void *)skb->data; |
1da177e4 | 1013 | |
6cdee106 | 1014 | /* MessageType, MessageLength */ |
51491167 | 1015 | if (cpu_to_le32(RNDIS_MSG_PACKET) |
9b39e9dd BN |
1016 | != get_unaligned(tmp++)) { |
1017 | dev_kfree_skb_any(skb); | |
6cdee106 | 1018 | return -EINVAL; |
9b39e9dd | 1019 | } |
6cdee106 DB |
1020 | tmp++; |
1021 | ||
1022 | /* DataOffset, DataLength */ | |
9b39e9dd BN |
1023 | if (!skb_pull(skb, get_unaligned_le32(tmp++) + 8)) { |
1024 | dev_kfree_skb_any(skb); | |
6cdee106 | 1025 | return -EOVERFLOW; |
9b39e9dd | 1026 | } |
a5abdeaf | 1027 | skb_trim(skb, get_unaligned_le32(tmp++)); |
1da177e4 | 1028 | |
9b39e9dd | 1029 | skb_queue_tail(list, skb); |
1da177e4 LT |
1030 | return 0; |
1031 | } | |
1032 | ||
a1df4e45 | 1033 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES |
1da177e4 | 1034 | |
e184d5fc | 1035 | static int rndis_proc_show(struct seq_file *m, void *v) |
1da177e4 | 1036 | { |
e184d5fc | 1037 | rndis_params *param = m->private; |
7e27f18c | 1038 | |
e184d5fc | 1039 | seq_printf(m, |
1da177e4 LT |
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" | |
7e27f18c DB |
1047 | "vendor : %s\n", |
1048 | param->confignr, (param->used) ? "y" : "n", | |
1da177e4 LT |
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; }), | |
7e27f18c DB |
1058 | param->medium, |
1059 | (param->media_state) ? 0 : param->speed*100, | |
1da177e4 | 1060 | (param->media_state) ? "disconnected" : "connected", |
7e27f18c | 1061 | param->vendorID, param->vendorDescr); |
e184d5fc | 1062 | return 0; |
1da177e4 LT |
1063 | } |
1064 | ||
e184d5fc | 1065 | static ssize_t rndis_proc_write(struct file *file, const char __user *buffer, |
a1df4e45 | 1066 | size_t count, loff_t *ppos) |
1da177e4 | 1067 | { |
496ad9aa | 1068 | rndis_params *p = PDE(file_inode(file))->data; |
1da177e4 LT |
1069 | u32 speed = 0; |
1070 | int i, fl_speed = 0; | |
7e27f18c | 1071 | |
1da177e4 LT |
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; | |
a1df4e45 | 1088 | speed = speed * 10 + c - '0'; |
1da177e4 LT |
1089 | break; |
1090 | case 'C': | |
1091 | case 'c': | |
a1df4e45 | 1092 | rndis_signal_connect(p->confignr); |
1da177e4 LT |
1093 | break; |
1094 | case 'D': | |
1095 | case 'd': | |
1096 | rndis_signal_disconnect(p->confignr); | |
1097 | break; | |
7e27f18c | 1098 | default: |
1da177e4 | 1099 | if (fl_speed) p->speed = speed; |
33376c1c | 1100 | else pr_debug("%c is not valid\n", c); |
1da177e4 LT |
1101 | break; |
1102 | } | |
7e27f18c | 1103 | |
1da177e4 LT |
1104 | buffer++; |
1105 | } | |
7e27f18c | 1106 | |
1da177e4 LT |
1107 | return count; |
1108 | } | |
1109 | ||
e184d5fc AD |
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 | ||
a1df4e45 | 1124 | #define NAME_TEMPLATE "driver/rndis-%03d" |
1da177e4 LT |
1125 | |
1126 | static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS]; | |
1127 | ||
a1df4e45 | 1128 | #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ |
1da177e4 LT |
1129 | |
1130 | ||
793f03aa | 1131 | int rndis_init(void) |
1da177e4 LT |
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 | ||
a1df4e45 MD |
1139 | sprintf(name, NAME_TEMPLATE, i); |
1140 | rndis_connect_state[i] = proc_create_data(name, 0660, NULL, | |
e184d5fc | 1141 | &rndis_proc_fops, |
a1df4e45 MD |
1142 | (void *)(rndis_per_dev_params + i)); |
1143 | if (!rndis_connect_state[i]) { | |
1144 | pr_debug("%s: remove entries", __func__); | |
1da177e4 | 1145 | while (i) { |
a1df4e45 MD |
1146 | sprintf(name, NAME_TEMPLATE, --i); |
1147 | remove_proc_entry(name, NULL); | |
1da177e4 | 1148 | } |
33376c1c | 1149 | pr_debug("\n"); |
1da177e4 LT |
1150 | return -EIO; |
1151 | } | |
1da177e4 | 1152 | #endif |
a1df4e45 MD |
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 | |
17c51b6c | 1157 | = RNDIS_MEDIA_STATE_DISCONNECTED; |
a1df4e45 | 1158 | INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue)); |
1da177e4 | 1159 | } |
7e27f18c | 1160 | |
1da177e4 LT |
1161 | return 0; |
1162 | } | |
1163 | ||
a1df4e45 | 1164 | void rndis_exit(void) |
1da177e4 | 1165 | { |
a1df4e45 | 1166 | #ifdef CONFIG_USB_GADGET_DEBUG_FILES |
1da177e4 | 1167 | u8 i; |
a1df4e45 | 1168 | char name[20]; |
7e27f18c | 1169 | |
1da177e4 | 1170 | for (i = 0; i < RNDIS_MAX_CONFIGS; i++) { |
a1df4e45 MD |
1171 | sprintf(name, NAME_TEMPLATE, i); |
1172 | remove_proc_entry(name, NULL); | |
1da177e4 LT |
1173 | } |
1174 | #endif | |
1175 | } |