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net: disable draining tap queue in one go
[qemu-kvm/fedora.git] / hw / usb-net.c
blob8214a68be25c8b6506497401818ad0ffdff7db53
1 /*
2 * QEMU USB Net devices
3 *
4 * Copyright (c) 2006 Thomas Sailer
5 * Copyright (c) 2008 Andrzej Zaborowski
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25
26 #include "qemu-common.h"
27 #include "usb.h"
28 #include "net.h"
29 #include "sys-queue.h"
30
31 /*#define TRAFFIC_DEBUG*/
32 /* Thanks to NetChip Technologies for donating this product ID.
33 * It's for devices with only CDC Ethernet configurations.
34 */
35 #define CDC_VENDOR_NUM 0x0525 /* NetChip */
36 #define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */
37 /* For hardware that can talk RNDIS and either of the above protocols,
38 * use this ID ... the windows INF files will know it.
39 */
40 #define RNDIS_VENDOR_NUM 0x0525 /* NetChip */
41 #define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */
42
43 enum usbstring_idx {
44 STRING_MANUFACTURER = 1,
45 STRING_PRODUCT,
46 STRING_ETHADDR,
47 STRING_DATA,
48 STRING_CONTROL,
49 STRING_RNDIS_CONTROL,
50 STRING_CDC,
51 STRING_SUBSET,
52 STRING_RNDIS,
53 STRING_SERIALNUMBER,
54 };
55
56 #define DEV_CONFIG_VALUE 1 /* CDC or a subset */
57 #define DEV_RNDIS_CONFIG_VALUE 2 /* RNDIS; optional */
58
59 #define USB_CDC_SUBCLASS_ACM 0x02
60 #define USB_CDC_SUBCLASS_ETHERNET 0x06
61
62 #define USB_CDC_PROTO_NONE 0
63 #define USB_CDC_ACM_PROTO_VENDOR 0xff
64
65 #define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
66 #define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
67 #define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
68 #define USB_CDC_UNION_TYPE 0x06 /* union_desc */
69 #define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
70
71 #define USB_DT_CS_INTERFACE 0x24
72 #define USB_DT_CS_ENDPOINT 0x25
73
74 #define ClassInterfaceRequest \
75 ((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
76 #define ClassInterfaceOutRequest \
77 ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8)
78
79 #define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
80 #define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
81 #define USB_CDC_REQ_SET_LINE_CODING 0x20
82 #define USB_CDC_REQ_GET_LINE_CODING 0x21
83 #define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
84 #define USB_CDC_REQ_SEND_BREAK 0x23
85 #define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
86 #define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
87 #define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
88 #define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
89 #define USB_CDC_GET_ETHERNET_STATISTIC 0x44
90
91 #define LOG2_STATUS_INTERVAL_MSEC 5 /* 1 << 5 == 32 msec */
92 #define STATUS_BYTECOUNT 16 /* 8 byte header + data */
93
94 #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
95
96 /*
97 * mostly the same descriptor as the linux gadget rndis driver
98 */
99 static const uint8_t qemu_net_dev_descriptor[] = {
100 0x12, /* u8 bLength; */
101 USB_DT_DEVICE, /* u8 bDescriptorType; Device */
102 0x00, 0x02, /* u16 bcdUSB; v2.0 */
103 USB_CLASS_COMM, /* u8 bDeviceClass; */
104 0x00, /* u8 bDeviceSubClass; */
105 0x00, /* u8 bDeviceProtocol; [ low/full only ] */
106 0x40, /* u8 bMaxPacketSize0 */
107 RNDIS_VENDOR_NUM & 0xff, RNDIS_VENDOR_NUM >> 8, /* u16 idVendor; */
108 RNDIS_PRODUCT_NUM & 0xff, RNDIS_PRODUCT_NUM >> 8, /* u16 idProduct; */
109 0x00, 0x00, /* u16 bcdDevice */
110 STRING_MANUFACTURER, /* u8 iManufacturer; */
111 STRING_PRODUCT, /* u8 iProduct; */
112 STRING_SERIALNUMBER, /* u8 iSerialNumber; */
113 0x02, /* u8 bNumConfigurations; */
114 };
115
116 static const uint8_t qemu_net_rndis_config_descriptor[] = {
117 /* Configuration Descriptor */
118 0x09, /* u8 bLength */
119 USB_DT_CONFIG, /* u8 bDescriptorType */
120 0x43, 0x00, /* le16 wTotalLength */
121 0x02, /* u8 bNumInterfaces */
122 DEV_RNDIS_CONFIG_VALUE, /* u8 bConfigurationValue */
123 STRING_RNDIS, /* u8 iConfiguration */
124 0xc0, /* u8 bmAttributes */
125 0x32, /* u8 bMaxPower */
126 /* RNDIS Control Interface */
127 0x09, /* u8 bLength */
128 USB_DT_INTERFACE, /* u8 bDescriptorType */
129 0x00, /* u8 bInterfaceNumber */
130 0x00, /* u8 bAlternateSetting */
131 0x01, /* u8 bNumEndpoints */
132 USB_CLASS_COMM, /* u8 bInterfaceClass */
133 USB_CDC_SUBCLASS_ACM, /* u8 bInterfaceSubClass */
134 USB_CDC_ACM_PROTO_VENDOR, /* u8 bInterfaceProtocol */
135 STRING_RNDIS_CONTROL, /* u8 iInterface */
136 /* Header Descriptor */
137 0x05, /* u8 bLength */
138 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
139 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
140 0x10, 0x01, /* le16 bcdCDC */
141 /* Call Management Descriptor */
142 0x05, /* u8 bLength */
143 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
144 USB_CDC_CALL_MANAGEMENT_TYPE, /* u8 bDescriptorSubType */
145 0x00, /* u8 bmCapabilities */
146 0x01, /* u8 bDataInterface */
147 /* ACM Descriptor */
148 0x04, /* u8 bLength */
149 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
150 USB_CDC_ACM_TYPE, /* u8 bDescriptorSubType */
151 0x00, /* u8 bmCapabilities */
152 /* Union Descriptor */
153 0x05, /* u8 bLength */
154 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
155 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
156 0x00, /* u8 bMasterInterface0 */
157 0x01, /* u8 bSlaveInterface0 */
158 /* Status Descriptor */
159 0x07, /* u8 bLength */
160 USB_DT_ENDPOINT, /* u8 bDescriptorType */
161 USB_DIR_IN | 1, /* u8 bEndpointAddress */
162 USB_ENDPOINT_XFER_INT, /* u8 bmAttributes */
163 STATUS_BYTECOUNT & 0xff, STATUS_BYTECOUNT >> 8, /* le16 wMaxPacketSize */
164 1 << LOG2_STATUS_INTERVAL_MSEC, /* u8 bInterval */
165 /* RNDIS Data Interface */
166 0x09, /* u8 bLength */
167 USB_DT_INTERFACE, /* u8 bDescriptorType */
168 0x01, /* u8 bInterfaceNumber */
169 0x00, /* u8 bAlternateSetting */
170 0x02, /* u8 bNumEndpoints */
171 USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
172 0x00, /* u8 bInterfaceSubClass */
173 0x00, /* u8 bInterfaceProtocol */
174 STRING_DATA, /* u8 iInterface */
175 /* Source Endpoint */
176 0x07, /* u8 bLength */
177 USB_DT_ENDPOINT, /* u8 bDescriptorType */
178 USB_DIR_IN | 2, /* u8 bEndpointAddress */
179 USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
180 0x40, 0x00, /* le16 wMaxPacketSize */
181 0x00, /* u8 bInterval */
182 /* Sink Endpoint */
183 0x07, /* u8 bLength */
184 USB_DT_ENDPOINT, /* u8 bDescriptorType */
185 USB_DIR_OUT | 2, /* u8 bEndpointAddress */
186 USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
187 0x40, 0x00, /* le16 wMaxPacketSize */
188 0x00 /* u8 bInterval */
189 };
190
191 static const uint8_t qemu_net_cdc_config_descriptor[] = {
192 /* Configuration Descriptor */
193 0x09, /* u8 bLength */
194 USB_DT_CONFIG, /* u8 bDescriptorType */
195 0x50, 0x00, /* le16 wTotalLength */
196 0x02, /* u8 bNumInterfaces */
197 DEV_CONFIG_VALUE, /* u8 bConfigurationValue */
198 STRING_CDC, /* u8 iConfiguration */
199 0xc0, /* u8 bmAttributes */
200 0x32, /* u8 bMaxPower */
201 /* CDC Control Interface */
202 0x09, /* u8 bLength */
203 USB_DT_INTERFACE, /* u8 bDescriptorType */
204 0x00, /* u8 bInterfaceNumber */
205 0x00, /* u8 bAlternateSetting */
206 0x01, /* u8 bNumEndpoints */
207 USB_CLASS_COMM, /* u8 bInterfaceClass */
208 USB_CDC_SUBCLASS_ETHERNET, /* u8 bInterfaceSubClass */
209 USB_CDC_PROTO_NONE, /* u8 bInterfaceProtocol */
210 STRING_CONTROL, /* u8 iInterface */
211 /* Header Descriptor */
212 0x05, /* u8 bLength */
213 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
214 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
215 0x10, 0x01, /* le16 bcdCDC */
216 /* Union Descriptor */
217 0x05, /* u8 bLength */
218 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
219 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
220 0x00, /* u8 bMasterInterface0 */
221 0x01, /* u8 bSlaveInterface0 */
222 /* Ethernet Descriptor */
223 0x0d, /* u8 bLength */
224 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
225 USB_CDC_ETHERNET_TYPE, /* u8 bDescriptorSubType */
226 STRING_ETHADDR, /* u8 iMACAddress */
227 0x00, 0x00, 0x00, 0x00, /* le32 bmEthernetStatistics */
228 ETH_FRAME_LEN & 0xff, ETH_FRAME_LEN >> 8, /* le16 wMaxSegmentSize */
229 0x00, 0x00, /* le16 wNumberMCFilters */
230 0x00, /* u8 bNumberPowerFilters */
231 /* Status Descriptor */
232 0x07, /* u8 bLength */
233 USB_DT_ENDPOINT, /* u8 bDescriptorType */
234 USB_DIR_IN | 1, /* u8 bEndpointAddress */
235 USB_ENDPOINT_XFER_INT, /* u8 bmAttributes */
236 STATUS_BYTECOUNT & 0xff, STATUS_BYTECOUNT >> 8, /* le16 wMaxPacketSize */
237 1 << LOG2_STATUS_INTERVAL_MSEC, /* u8 bInterval */
238 /* CDC Data (nop) Interface */
239 0x09, /* u8 bLength */
240 USB_DT_INTERFACE, /* u8 bDescriptorType */
241 0x01, /* u8 bInterfaceNumber */
242 0x00, /* u8 bAlternateSetting */
243 0x00, /* u8 bNumEndpoints */
244 USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
245 0x00, /* u8 bInterfaceSubClass */
246 0x00, /* u8 bInterfaceProtocol */
247 0x00, /* u8 iInterface */
248 /* CDC Data Interface */
249 0x09, /* u8 bLength */
250 USB_DT_INTERFACE, /* u8 bDescriptorType */
251 0x01, /* u8 bInterfaceNumber */
252 0x01, /* u8 bAlternateSetting */
253 0x02, /* u8 bNumEndpoints */
254 USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
255 0x00, /* u8 bInterfaceSubClass */
256 0x00, /* u8 bInterfaceProtocol */
257 STRING_DATA, /* u8 iInterface */
258 /* Source Endpoint */
259 0x07, /* u8 bLength */
260 USB_DT_ENDPOINT, /* u8 bDescriptorType */
261 USB_DIR_IN | 2, /* u8 bEndpointAddress */
262 USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
263 0x40, 0x00, /* le16 wMaxPacketSize */
264 0x00, /* u8 bInterval */
265 /* Sink Endpoint */
266 0x07, /* u8 bLength */
267 USB_DT_ENDPOINT, /* u8 bDescriptorType */
268 USB_DIR_OUT | 2, /* u8 bEndpointAddress */
269 USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
270 0x40, 0x00, /* le16 wMaxPacketSize */
271 0x00 /* u8 bInterval */
272 };
273
274 /*
275 * RNDIS Definitions - in theory not specific to USB.
276 */
277 #define RNDIS_MAXIMUM_FRAME_SIZE 1518
278 #define RNDIS_MAX_TOTAL_SIZE 1558
279
280 /* Remote NDIS Versions */
281 #define RNDIS_MAJOR_VERSION 1
282 #define RNDIS_MINOR_VERSION 0
283
284 /* Status Values */
285 #define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */
286 #define RNDIS_STATUS_FAILURE 0xc0000001U /* Unspecified error */
287 #define RNDIS_STATUS_INVALID_DATA 0xc0010015U /* Invalid data */
288 #define RNDIS_STATUS_NOT_SUPPORTED 0xc00000bbU /* Unsupported request */
289 #define RNDIS_STATUS_MEDIA_CONNECT 0x4001000bU /* Device connected */
290 #define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000cU /* Device disconnected */
291
292 /* Message Set for Connectionless (802.3) Devices */
293 enum {
294 RNDIS_PACKET_MSG = 1,
295 RNDIS_INITIALIZE_MSG = 2, /* Initialize device */
296 RNDIS_HALT_MSG = 3,
297 RNDIS_QUERY_MSG = 4,
298 RNDIS_SET_MSG = 5,
299 RNDIS_RESET_MSG = 6,
300 RNDIS_INDICATE_STATUS_MSG = 7,
301 RNDIS_KEEPALIVE_MSG = 8,
302 };
303
304 /* Message completion */
305 enum {
306 RNDIS_INITIALIZE_CMPLT = 0x80000002U,
307 RNDIS_QUERY_CMPLT = 0x80000004U,
308 RNDIS_SET_CMPLT = 0x80000005U,
309 RNDIS_RESET_CMPLT = 0x80000006U,
310 RNDIS_KEEPALIVE_CMPLT = 0x80000008U,
311 };
312
313 /* Device Flags */
314 enum {
315 RNDIS_DF_CONNECTIONLESS = 1,
316 RNDIS_DF_CONNECTIONORIENTED = 2,
317 };
318
319 #define RNDIS_MEDIUM_802_3 0x00000000U
320
321 /* from drivers/net/sk98lin/h/skgepnmi.h */
322 #define OID_PNP_CAPABILITIES 0xfd010100
323 #define OID_PNP_SET_POWER 0xfd010101
324 #define OID_PNP_QUERY_POWER 0xfd010102
325 #define OID_PNP_ADD_WAKE_UP_PATTERN 0xfd010103
326 #define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xfd010104
327 #define OID_PNP_ENABLE_WAKE_UP 0xfd010106
328
329 typedef uint32_t le32;
330
331 typedef struct rndis_init_msg_type {
332 le32 MessageType;
333 le32 MessageLength;
334 le32 RequestID;
335 le32 MajorVersion;
336 le32 MinorVersion;
337 le32 MaxTransferSize;
338 } rndis_init_msg_type;
339
340 typedef struct rndis_init_cmplt_type {
341 le32 MessageType;
342 le32 MessageLength;
343 le32 RequestID;
344 le32 Status;
345 le32 MajorVersion;
346 le32 MinorVersion;
347 le32 DeviceFlags;
348 le32 Medium;
349 le32 MaxPacketsPerTransfer;
350 le32 MaxTransferSize;
351 le32 PacketAlignmentFactor;
352 le32 AFListOffset;
353 le32 AFListSize;
354 } rndis_init_cmplt_type;
355
356 typedef struct rndis_halt_msg_type {
357 le32 MessageType;
358 le32 MessageLength;
359 le32 RequestID;
360 } rndis_halt_msg_type;
361
362 typedef struct rndis_query_msg_type {
363 le32 MessageType;
364 le32 MessageLength;
365 le32 RequestID;
366 le32 OID;
367 le32 InformationBufferLength;
368 le32 InformationBufferOffset;
369 le32 DeviceVcHandle;
370 } rndis_query_msg_type;
371
372 typedef struct rndis_query_cmplt_type {
373 le32 MessageType;
374 le32 MessageLength;
375 le32 RequestID;
376 le32 Status;
377 le32 InformationBufferLength;
378 le32 InformationBufferOffset;
379 } rndis_query_cmplt_type;
380
381 typedef struct rndis_set_msg_type {
382 le32 MessageType;
383 le32 MessageLength;
384 le32 RequestID;
385 le32 OID;
386 le32 InformationBufferLength;
387 le32 InformationBufferOffset;
388 le32 DeviceVcHandle;
389 } rndis_set_msg_type;
390
391 typedef struct rndis_set_cmplt_type {
392 le32 MessageType;
393 le32 MessageLength;
394 le32 RequestID;
395 le32 Status;
396 } rndis_set_cmplt_type;
397
398 typedef struct rndis_reset_msg_type {
399 le32 MessageType;
400 le32 MessageLength;
401 le32 Reserved;
402 } rndis_reset_msg_type;
403
404 typedef struct rndis_reset_cmplt_type {
405 le32 MessageType;
406 le32 MessageLength;
407 le32 Status;
408 le32 AddressingReset;
409 } rndis_reset_cmplt_type;
410
411 typedef struct rndis_indicate_status_msg_type {
412 le32 MessageType;
413 le32 MessageLength;
414 le32 Status;
415 le32 StatusBufferLength;
416 le32 StatusBufferOffset;
417 } rndis_indicate_status_msg_type;
418
419 typedef struct rndis_keepalive_msg_type {
420 le32 MessageType;
421 le32 MessageLength;
422 le32 RequestID;
423 } rndis_keepalive_msg_type;
424
425 typedef struct rndis_keepalive_cmplt_type {
426 le32 MessageType;
427 le32 MessageLength;
428 le32 RequestID;
429 le32 Status;
430 } rndis_keepalive_cmplt_type;
431
432 struct rndis_packet_msg_type {
433 le32 MessageType;
434 le32 MessageLength;
435 le32 DataOffset;
436 le32 DataLength;
437 le32 OOBDataOffset;
438 le32 OOBDataLength;
439 le32 NumOOBDataElements;
440 le32 PerPacketInfoOffset;
441 le32 PerPacketInfoLength;
442 le32 VcHandle;
443 le32 Reserved;
444 };
445
446 struct rndis_config_parameter {
447 le32 ParameterNameOffset;
448 le32 ParameterNameLength;
449 le32 ParameterType;
450 le32 ParameterValueOffset;
451 le32 ParameterValueLength;
452 };
453
454 /* implementation specific */
455 enum rndis_state
456 {
457 RNDIS_UNINITIALIZED,
458 RNDIS_INITIALIZED,
459 RNDIS_DATA_INITIALIZED,
460 };
461
462 /* from ndis.h */
463 enum ndis_oid {
464 /* Required Object IDs (OIDs) */
465 OID_GEN_SUPPORTED_LIST = 0x00010101,
466 OID_GEN_HARDWARE_STATUS = 0x00010102,
467 OID_GEN_MEDIA_SUPPORTED = 0x00010103,
468 OID_GEN_MEDIA_IN_USE = 0x00010104,
469 OID_GEN_MAXIMUM_LOOKAHEAD = 0x00010105,
470 OID_GEN_MAXIMUM_FRAME_SIZE = 0x00010106,
471 OID_GEN_LINK_SPEED = 0x00010107,
472 OID_GEN_TRANSMIT_BUFFER_SPACE = 0x00010108,
473 OID_GEN_RECEIVE_BUFFER_SPACE = 0x00010109,
474 OID_GEN_TRANSMIT_BLOCK_SIZE = 0x0001010a,
475 OID_GEN_RECEIVE_BLOCK_SIZE = 0x0001010b,
476 OID_GEN_VENDOR_ID = 0x0001010c,
477 OID_GEN_VENDOR_DESCRIPTION = 0x0001010d,
478 OID_GEN_CURRENT_PACKET_FILTER = 0x0001010e,
479 OID_GEN_CURRENT_LOOKAHEAD = 0x0001010f,
480 OID_GEN_DRIVER_VERSION = 0x00010110,
481 OID_GEN_MAXIMUM_TOTAL_SIZE = 0x00010111,
482 OID_GEN_PROTOCOL_OPTIONS = 0x00010112,
483 OID_GEN_MAC_OPTIONS = 0x00010113,
484 OID_GEN_MEDIA_CONNECT_STATUS = 0x00010114,
485 OID_GEN_MAXIMUM_SEND_PACKETS = 0x00010115,
486 OID_GEN_VENDOR_DRIVER_VERSION = 0x00010116,
487 OID_GEN_SUPPORTED_GUIDS = 0x00010117,
488 OID_GEN_NETWORK_LAYER_ADDRESSES = 0x00010118,
489 OID_GEN_TRANSPORT_HEADER_OFFSET = 0x00010119,
490 OID_GEN_MACHINE_NAME = 0x0001021a,
491 OID_GEN_RNDIS_CONFIG_PARAMETER = 0x0001021b,
492 OID_GEN_VLAN_ID = 0x0001021c,
493
494 /* Optional OIDs */
495 OID_GEN_MEDIA_CAPABILITIES = 0x00010201,
496 OID_GEN_PHYSICAL_MEDIUM = 0x00010202,
497
498 /* Required statistics OIDs */
499 OID_GEN_XMIT_OK = 0x00020101,
500 OID_GEN_RCV_OK = 0x00020102,
501 OID_GEN_XMIT_ERROR = 0x00020103,
502 OID_GEN_RCV_ERROR = 0x00020104,
503 OID_GEN_RCV_NO_BUFFER = 0x00020105,
504
505 /* Optional statistics OIDs */
506 OID_GEN_DIRECTED_BYTES_XMIT = 0x00020201,
507 OID_GEN_DIRECTED_FRAMES_XMIT = 0x00020202,
508 OID_GEN_MULTICAST_BYTES_XMIT = 0x00020203,
509 OID_GEN_MULTICAST_FRAMES_XMIT = 0x00020204,
510 OID_GEN_BROADCAST_BYTES_XMIT = 0x00020205,
511 OID_GEN_BROADCAST_FRAMES_XMIT = 0x00020206,
512 OID_GEN_DIRECTED_BYTES_RCV = 0x00020207,
513 OID_GEN_DIRECTED_FRAMES_RCV = 0x00020208,
514 OID_GEN_MULTICAST_BYTES_RCV = 0x00020209,
515 OID_GEN_MULTICAST_FRAMES_RCV = 0x0002020a,
516 OID_GEN_BROADCAST_BYTES_RCV = 0x0002020b,
517 OID_GEN_BROADCAST_FRAMES_RCV = 0x0002020c,
518 OID_GEN_RCV_CRC_ERROR = 0x0002020d,
519 OID_GEN_TRANSMIT_QUEUE_LENGTH = 0x0002020e,
520 OID_GEN_GET_TIME_CAPS = 0x0002020f,
521 OID_GEN_GET_NETCARD_TIME = 0x00020210,
522 OID_GEN_NETCARD_LOAD = 0x00020211,
523 OID_GEN_DEVICE_PROFILE = 0x00020212,
524 OID_GEN_INIT_TIME_MS = 0x00020213,
525 OID_GEN_RESET_COUNTS = 0x00020214,
526 OID_GEN_MEDIA_SENSE_COUNTS = 0x00020215,
527 OID_GEN_FRIENDLY_NAME = 0x00020216,
528 OID_GEN_MINIPORT_INFO = 0x00020217,
529 OID_GEN_RESET_VERIFY_PARAMETERS = 0x00020218,
530
531 /* IEEE 802.3 (Ethernet) OIDs */
532 OID_802_3_PERMANENT_ADDRESS = 0x01010101,
533 OID_802_3_CURRENT_ADDRESS = 0x01010102,
534 OID_802_3_MULTICAST_LIST = 0x01010103,
535 OID_802_3_MAXIMUM_LIST_SIZE = 0x01010104,
536 OID_802_3_MAC_OPTIONS = 0x01010105,
537 OID_802_3_RCV_ERROR_ALIGNMENT = 0x01020101,
538 OID_802_3_XMIT_ONE_COLLISION = 0x01020102,
539 OID_802_3_XMIT_MORE_COLLISIONS = 0x01020103,
540 OID_802_3_XMIT_DEFERRED = 0x01020201,
541 OID_802_3_XMIT_MAX_COLLISIONS = 0x01020202,
542 OID_802_3_RCV_OVERRUN = 0x01020203,
543 OID_802_3_XMIT_UNDERRUN = 0x01020204,
544 OID_802_3_XMIT_HEARTBEAT_FAILURE = 0x01020205,
545 OID_802_3_XMIT_TIMES_CRS_LOST = 0x01020206,
546 OID_802_3_XMIT_LATE_COLLISIONS = 0x01020207,
547 };
548
549 static const uint32_t oid_supported_list[] =
550 {
551 /* the general stuff */
552 OID_GEN_SUPPORTED_LIST,
553 OID_GEN_HARDWARE_STATUS,
554 OID_GEN_MEDIA_SUPPORTED,
555 OID_GEN_MEDIA_IN_USE,
556 OID_GEN_MAXIMUM_FRAME_SIZE,
557 OID_GEN_LINK_SPEED,
558 OID_GEN_TRANSMIT_BLOCK_SIZE,
559 OID_GEN_RECEIVE_BLOCK_SIZE,
560 OID_GEN_VENDOR_ID,
561 OID_GEN_VENDOR_DESCRIPTION,
562 OID_GEN_VENDOR_DRIVER_VERSION,
563 OID_GEN_CURRENT_PACKET_FILTER,
564 OID_GEN_MAXIMUM_TOTAL_SIZE,
565 OID_GEN_MEDIA_CONNECT_STATUS,
566 OID_GEN_PHYSICAL_MEDIUM,
567
568 /* the statistical stuff */
569 OID_GEN_XMIT_OK,
570 OID_GEN_RCV_OK,
571 OID_GEN_XMIT_ERROR,
572 OID_GEN_RCV_ERROR,
573 OID_GEN_RCV_NO_BUFFER,
574
575 /* IEEE 802.3 */
576 /* the general stuff */
577 OID_802_3_PERMANENT_ADDRESS,
578 OID_802_3_CURRENT_ADDRESS,
579 OID_802_3_MULTICAST_LIST,
580 OID_802_3_MAC_OPTIONS,
581 OID_802_3_MAXIMUM_LIST_SIZE,
582
583 /* the statistical stuff */
584 OID_802_3_RCV_ERROR_ALIGNMENT,
585 OID_802_3_XMIT_ONE_COLLISION,
586 OID_802_3_XMIT_MORE_COLLISIONS,
587 };
588
589 #define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA (1 << 0)
590 #define NDIS_MAC_OPTION_RECEIVE_SERIALIZED (1 << 1)
591 #define NDIS_MAC_OPTION_TRANSFERS_NOT_PEND (1 << 2)
592 #define NDIS_MAC_OPTION_NO_LOOPBACK (1 << 3)
593 #define NDIS_MAC_OPTION_FULL_DUPLEX (1 << 4)
594 #define NDIS_MAC_OPTION_EOTX_INDICATION (1 << 5)
595 #define NDIS_MAC_OPTION_8021P_PRIORITY (1 << 6)
596
597 struct rndis_response {
598 TAILQ_ENTRY(rndis_response) entries;
599 uint32_t length;
600 uint8_t buf[0];
601 };
602
603 typedef struct USBNetState {
604 USBDevice dev;
605
606 unsigned int rndis;
607 enum rndis_state rndis_state;
608 uint32_t medium;
609 uint32_t speed;
610 uint32_t media_state;
611 uint16_t filter;
612 uint32_t vendorid;
613 uint8_t mac[6];
614
615 unsigned int out_ptr;
616 uint8_t out_buf[2048];
617
618 USBPacket *inpkt;
619 unsigned int in_ptr, in_len;
620 uint8_t in_buf[2048];
621
622 char usbstring_mac[13];
623 VLANClientState *vc;
624 TAILQ_HEAD(rndis_resp_head, rndis_response) rndis_resp;
625 } USBNetState;
626
627 static int ndis_query(USBNetState *s, uint32_t oid,
628 uint8_t *inbuf, unsigned int inlen, uint8_t *outbuf,
629 size_t outlen)
630 {
631 unsigned int i;
632
633 switch (oid) {
634 /* general oids (table 4-1) */
635 /* mandatory */
636 case OID_GEN_SUPPORTED_LIST:
637 for (i = 0; i < ARRAY_SIZE(oid_supported_list); i++)
638 ((le32 *) outbuf)[i] = cpu_to_le32(oid_supported_list[i]);
639 return sizeof(oid_supported_list);
640
641 /* mandatory */
642 case OID_GEN_HARDWARE_STATUS:
643 *((le32 *) outbuf) = cpu_to_le32(0);
644 return sizeof(le32);
645
646 /* mandatory */
647 case OID_GEN_MEDIA_SUPPORTED:
648 *((le32 *) outbuf) = cpu_to_le32(s->medium);
649 return sizeof(le32);
650
651 /* mandatory */
652 case OID_GEN_MEDIA_IN_USE:
653 *((le32 *) outbuf) = cpu_to_le32(s->medium);
654 return sizeof(le32);
655
656 /* mandatory */
657 case OID_GEN_MAXIMUM_FRAME_SIZE:
658 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
659 return sizeof(le32);
660
661 /* mandatory */
662 case OID_GEN_LINK_SPEED:
663 *((le32 *) outbuf) = cpu_to_le32(s->speed);
664 return sizeof(le32);
665
666 /* mandatory */
667 case OID_GEN_TRANSMIT_BLOCK_SIZE:
668 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
669 return sizeof(le32);
670
671 /* mandatory */
672 case OID_GEN_RECEIVE_BLOCK_SIZE:
673 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
674 return sizeof(le32);
675
676 /* mandatory */
677 case OID_GEN_VENDOR_ID:
678 *((le32 *) outbuf) = cpu_to_le32(s->vendorid);
679 return sizeof(le32);
680
681 /* mandatory */
682 case OID_GEN_VENDOR_DESCRIPTION:
683 pstrcpy((char *)outbuf, outlen, "QEMU USB RNDIS Net");
684 return strlen((char *)outbuf) + 1;
685
686 case OID_GEN_VENDOR_DRIVER_VERSION:
687 *((le32 *) outbuf) = cpu_to_le32(1);
688 return sizeof(le32);
689
690 /* mandatory */
691 case OID_GEN_CURRENT_PACKET_FILTER:
692 *((le32 *) outbuf) = cpu_to_le32(s->filter);
693 return sizeof(le32);
694
695 /* mandatory */
696 case OID_GEN_MAXIMUM_TOTAL_SIZE:
697 *((le32 *) outbuf) = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
698 return sizeof(le32);
699
700 /* mandatory */
701 case OID_GEN_MEDIA_CONNECT_STATUS:
702 *((le32 *) outbuf) = cpu_to_le32(s->media_state);
703 return sizeof(le32);
704
705 case OID_GEN_PHYSICAL_MEDIUM:
706 *((le32 *) outbuf) = cpu_to_le32(0);
707 return sizeof(le32);
708
709 case OID_GEN_MAC_OPTIONS:
710 *((le32 *) outbuf) = cpu_to_le32(
711 NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
712 NDIS_MAC_OPTION_FULL_DUPLEX);
713 return sizeof(le32);
714
715 /* statistics OIDs (table 4-2) */
716 /* mandatory */
717 case OID_GEN_XMIT_OK:
718 *((le32 *) outbuf) = cpu_to_le32(0);
719 return sizeof(le32);
720
721 /* mandatory */
722 case OID_GEN_RCV_OK:
723 *((le32 *) outbuf) = cpu_to_le32(0);
724 return sizeof(le32);
725
726 /* mandatory */
727 case OID_GEN_XMIT_ERROR:
728 *((le32 *) outbuf) = cpu_to_le32(0);
729 return sizeof(le32);
730
731 /* mandatory */
732 case OID_GEN_RCV_ERROR:
733 *((le32 *) outbuf) = cpu_to_le32(0);
734 return sizeof(le32);
735
736 /* mandatory */
737 case OID_GEN_RCV_NO_BUFFER:
738 *((le32 *) outbuf) = cpu_to_le32(0);
739 return sizeof(le32);
740
741 /* ieee802.3 OIDs (table 4-3) */
742 /* mandatory */
743 case OID_802_3_PERMANENT_ADDRESS:
744 memcpy(outbuf, s->mac, 6);
745 return 6;
746
747 /* mandatory */
748 case OID_802_3_CURRENT_ADDRESS:
749 memcpy(outbuf, s->mac, 6);
750 return 6;
751
752 /* mandatory */
753 case OID_802_3_MULTICAST_LIST:
754 *((le32 *) outbuf) = cpu_to_le32(0xe0000000);
755 return sizeof(le32);
756
757 /* mandatory */
758 case OID_802_3_MAXIMUM_LIST_SIZE:
759 *((le32 *) outbuf) = cpu_to_le32(1);
760 return sizeof(le32);
761
762 case OID_802_3_MAC_OPTIONS:
763 return 0;
764
765 /* ieee802.3 statistics OIDs (table 4-4) */
766 /* mandatory */
767 case OID_802_3_RCV_ERROR_ALIGNMENT:
768 *((le32 *) outbuf) = cpu_to_le32(0);
769 return sizeof(le32);
770
771 /* mandatory */
772 case OID_802_3_XMIT_ONE_COLLISION:
773 *((le32 *) outbuf) = cpu_to_le32(0);
774 return sizeof(le32);
775
776 /* mandatory */
777 case OID_802_3_XMIT_MORE_COLLISIONS:
778 *((le32 *) outbuf) = cpu_to_le32(0);
779 return sizeof(le32);
780
781 default:
782 fprintf(stderr, "usbnet: unknown OID 0x%08x\n", oid);
783 return 0;
784 }
785 return -1;
786 }
787
788 static int ndis_set(USBNetState *s, uint32_t oid,
789 uint8_t *inbuf, unsigned int inlen)
790 {
791 switch (oid) {
792 case OID_GEN_CURRENT_PACKET_FILTER:
793 s->filter = le32_to_cpup((le32 *) inbuf);
794 if (s->filter) {
795 s->rndis_state = RNDIS_DATA_INITIALIZED;
796 } else {
797 s->rndis_state = RNDIS_INITIALIZED;
798 }
799 return 0;
800
801 case OID_802_3_MULTICAST_LIST:
802 return 0;
803 }
804 return -1;
805 }
806
807 static int rndis_get_response(USBNetState *s, uint8_t *buf)
808 {
809 int ret = 0;
810 struct rndis_response *r = s->rndis_resp.tqh_first;
811
812 if (!r)
813 return ret;
814
815 TAILQ_REMOVE(&s->rndis_resp, r, entries);
816 ret = r->length;
817 memcpy(buf, r->buf, r->length);
818 qemu_free(r);
819
820 return ret;
821 }
822
823 static void *rndis_queue_response(USBNetState *s, unsigned int length)
824 {
825 struct rndis_response *r =
826 qemu_mallocz(sizeof(struct rndis_response) + length);
827
828 TAILQ_INSERT_TAIL(&s->rndis_resp, r, entries);
829 r->length = length;
830
831 return &r->buf[0];
832 }
833
834 static void rndis_clear_responsequeue(USBNetState *s)
835 {
836 struct rndis_response *r;
837
838 while ((r = s->rndis_resp.tqh_first)) {
839 TAILQ_REMOVE(&s->rndis_resp, r, entries);
840 qemu_free(r);
841 }
842 }
843
844 static int rndis_init_response(USBNetState *s, rndis_init_msg_type *buf)
845 {
846 rndis_init_cmplt_type *resp =
847 rndis_queue_response(s, sizeof(rndis_init_cmplt_type));
848
849 if (!resp)
850 return USB_RET_STALL;
851
852 resp->MessageType = cpu_to_le32(RNDIS_INITIALIZE_CMPLT);
853 resp->MessageLength = cpu_to_le32(sizeof(rndis_init_cmplt_type));
854 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
855 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
856 resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION);
857 resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION);
858 resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS);
859 resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3);
860 resp->MaxPacketsPerTransfer = cpu_to_le32(1);
861 resp->MaxTransferSize = cpu_to_le32(ETH_FRAME_LEN +
862 sizeof(struct rndis_packet_msg_type) + 22);
863 resp->PacketAlignmentFactor = cpu_to_le32(0);
864 resp->AFListOffset = cpu_to_le32(0);
865 resp->AFListSize = cpu_to_le32(0);
866 return 0;
867 }
868
869 static int rndis_query_response(USBNetState *s,
870 rndis_query_msg_type *buf, unsigned int length)
871 {
872 rndis_query_cmplt_type *resp;
873 /* oid_supported_list is the largest data reply */
874 uint8_t infobuf[sizeof(oid_supported_list)];
875 uint32_t bufoffs, buflen;
876 int infobuflen;
877 unsigned int resplen;
878
879 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
880 buflen = le32_to_cpu(buf->InformationBufferLength);
881 if (bufoffs + buflen > length)
882 return USB_RET_STALL;
883
884 infobuflen = ndis_query(s, le32_to_cpu(buf->OID),
885 bufoffs + (uint8_t *) buf, buflen, infobuf,
886 sizeof(infobuf));
887 resplen = sizeof(rndis_query_cmplt_type) +
888 ((infobuflen < 0) ? 0 : infobuflen);
889 resp = rndis_queue_response(s, resplen);
890 if (!resp)
891 return USB_RET_STALL;
892
893 resp->MessageType = cpu_to_le32(RNDIS_QUERY_CMPLT);
894 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
895 resp->MessageLength = cpu_to_le32(resplen);
896
897 if (infobuflen < 0) {
898 /* OID not supported */
899 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
900 resp->InformationBufferLength = cpu_to_le32(0);
901 resp->InformationBufferOffset = cpu_to_le32(0);
902 return 0;
903 }
904
905 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
906 resp->InformationBufferOffset =
907 cpu_to_le32(infobuflen ? sizeof(rndis_query_cmplt_type) - 8 : 0);
908 resp->InformationBufferLength = cpu_to_le32(infobuflen);
909 memcpy(resp + 1, infobuf, infobuflen);
910
911 return 0;
912 }
913
914 static int rndis_set_response(USBNetState *s,
915 rndis_set_msg_type *buf, unsigned int length)
916 {
917 rndis_set_cmplt_type *resp =
918 rndis_queue_response(s, sizeof(rndis_set_cmplt_type));
919 uint32_t bufoffs, buflen;
920 int ret;
921
922 if (!resp)
923 return USB_RET_STALL;
924
925 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
926 buflen = le32_to_cpu(buf->InformationBufferLength);
927 if (bufoffs + buflen > length)
928 return USB_RET_STALL;
929
930 ret = ndis_set(s, le32_to_cpu(buf->OID),
931 bufoffs + (uint8_t *) buf, buflen);
932 resp->MessageType = cpu_to_le32(RNDIS_SET_CMPLT);
933 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
934 resp->MessageLength = cpu_to_le32(sizeof(rndis_set_cmplt_type));
935 if (ret < 0) {
936 /* OID not supported */
937 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
938 return 0;
939 }
940 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
941
942 return 0;
943 }
944
945 static int rndis_reset_response(USBNetState *s, rndis_reset_msg_type *buf)
946 {
947 rndis_reset_cmplt_type *resp =
948 rndis_queue_response(s, sizeof(rndis_reset_cmplt_type));
949
950 if (!resp)
951 return USB_RET_STALL;
952
953 resp->MessageType = cpu_to_le32(RNDIS_RESET_CMPLT);
954 resp->MessageLength = cpu_to_le32(sizeof(rndis_reset_cmplt_type));
955 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
956 resp->AddressingReset = cpu_to_le32(1); /* reset information */
957
958 return 0;
959 }
960
961 static int rndis_keepalive_response(USBNetState *s,
962 rndis_keepalive_msg_type *buf)
963 {
964 rndis_keepalive_cmplt_type *resp =
965 rndis_queue_response(s, sizeof(rndis_keepalive_cmplt_type));
966
967 if (!resp)
968 return USB_RET_STALL;
969
970 resp->MessageType = cpu_to_le32(RNDIS_KEEPALIVE_CMPLT);
971 resp->MessageLength = cpu_to_le32(sizeof(rndis_keepalive_cmplt_type));
972 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
973 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
974
975 return 0;
976 }
977
978 static int rndis_parse(USBNetState *s, uint8_t *data, int length)
979 {
980 uint32_t msg_type, msg_length;
981 le32 *tmp = (le32 *) data;
982
983 msg_type = le32_to_cpup(tmp++);
984 msg_length = le32_to_cpup(tmp++);
985
986 switch (msg_type) {
987 case RNDIS_INITIALIZE_MSG:
988 s->rndis_state = RNDIS_INITIALIZED;
989 return rndis_init_response(s, (rndis_init_msg_type *) data);
990
991 case RNDIS_HALT_MSG:
992 s->rndis_state = RNDIS_UNINITIALIZED;
993 return 0;
994
995 case RNDIS_QUERY_MSG:
996 return rndis_query_response(s, (rndis_query_msg_type *) data, length);
997
998 case RNDIS_SET_MSG:
999 return rndis_set_response(s, (rndis_set_msg_type *) data, length);
1000
1001 case RNDIS_RESET_MSG:
1002 rndis_clear_responsequeue(s);
1003 s->out_ptr = s->in_ptr = s->in_len = 0;
1004 return rndis_reset_response(s, (rndis_reset_msg_type *) data);
1005
1006 case RNDIS_KEEPALIVE_MSG:
1007 /* For USB: host does this every 5 seconds */
1008 return rndis_keepalive_response(s, (rndis_keepalive_msg_type *) data);
1009 }
1010
1011 return USB_RET_STALL;
1012 }
1013
1014 static void usb_net_handle_reset(USBDevice *dev)
1015 {
1016 }
1017
1018 static const char * const usb_net_stringtable[] = {
1019 [STRING_MANUFACTURER] = "QEMU",
1020 [STRING_PRODUCT] = "RNDIS/QEMU USB Network Device",
1021 [STRING_ETHADDR] = "400102030405",
1022 [STRING_DATA] = "QEMU USB Net Data Interface",
1023 [STRING_CONTROL] = "QEMU USB Net Control Interface",
1024 [STRING_RNDIS_CONTROL] = "QEMU USB Net RNDIS Control Interface",
1025 [STRING_CDC] = "QEMU USB Net CDC",
1026 [STRING_SUBSET] = "QEMU USB Net Subset",
1027 [STRING_RNDIS] = "QEMU USB Net RNDIS",
1028 [STRING_SERIALNUMBER] = "1",
1029 };
1030
1031 static int usb_net_handle_control(USBDevice *dev, int request, int value,
1032 int index, int length, uint8_t *data)
1033 {
1034 USBNetState *s = (USBNetState *) dev;
1035 int ret = 0;
1036
1037 switch(request) {
1038 case DeviceRequest | USB_REQ_GET_STATUS:
1039 data[0] = (1 << USB_DEVICE_SELF_POWERED) |
1040 (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
1041 data[1] = 0x00;
1042 ret = 2;
1043 break;
1044
1045 case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
1046 if (value == USB_DEVICE_REMOTE_WAKEUP) {
1047 dev->remote_wakeup = 0;
1048 } else {
1049 goto fail;
1050 }
1051 ret = 0;
1052 break;
1053
1054 case DeviceOutRequest | USB_REQ_SET_FEATURE:
1055 if (value == USB_DEVICE_REMOTE_WAKEUP) {
1056 dev->remote_wakeup = 1;
1057 } else {
1058 goto fail;
1059 }
1060 ret = 0;
1061 break;
1062
1063 case DeviceOutRequest | USB_REQ_SET_ADDRESS:
1064 dev->addr = value;
1065 ret = 0;
1066 break;
1067
1068 case ClassInterfaceOutRequest | USB_CDC_SEND_ENCAPSULATED_COMMAND:
1069 if (!s->rndis || value || index != 0)
1070 goto fail;
1071 #ifdef TRAFFIC_DEBUG
1072 {
1073 unsigned int i;
1074 fprintf(stderr, "SEND_ENCAPSULATED_COMMAND:");
1075 for (i = 0; i < length; i++) {
1076 if (!(i & 15))
1077 fprintf(stderr, "\n%04x:", i);
1078 fprintf(stderr, " %02x", data[i]);
1079 }
1080 fprintf(stderr, "\n\n");
1081 }
1082 #endif
1083 ret = rndis_parse(s, data, length);
1084 break;
1085
1086 case ClassInterfaceRequest | USB_CDC_GET_ENCAPSULATED_RESPONSE:
1087 if (!s->rndis || value || index != 0)
1088 goto fail;
1089 ret = rndis_get_response(s, data);
1090 if (!ret) {
1091 data[0] = 0;
1092 ret = 1;
1093 }
1094 #ifdef TRAFFIC_DEBUG
1095 {
1096 unsigned int i;
1097 fprintf(stderr, "GET_ENCAPSULATED_RESPONSE:");
1098 for (i = 0; i < ret; i++) {
1099 if (!(i & 15))
1100 fprintf(stderr, "\n%04x:", i);
1101 fprintf(stderr, " %02x", data[i]);
1102 }
1103 fprintf(stderr, "\n\n");
1104 }
1105 #endif
1106 break;
1107
1108 case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
1109 switch(value >> 8) {
1110 case USB_DT_DEVICE:
1111 ret = sizeof(qemu_net_dev_descriptor);
1112 memcpy(data, qemu_net_dev_descriptor, ret);
1113 break;
1114
1115 case USB_DT_CONFIG:
1116 switch (value & 0xff) {
1117 case 0:
1118 ret = sizeof(qemu_net_rndis_config_descriptor);
1119 memcpy(data, qemu_net_rndis_config_descriptor, ret);
1120 break;
1121
1122 case 1:
1123 ret = sizeof(qemu_net_cdc_config_descriptor);
1124 memcpy(data, qemu_net_cdc_config_descriptor, ret);
1125 break;
1126
1127 default:
1128 goto fail;
1129 }
1130
1131 data[2] = ret & 0xff;
1132 data[3] = ret >> 8;
1133 break;
1134
1135 case USB_DT_STRING:
1136 switch (value & 0xff) {
1137 case 0:
1138 /* language ids */
1139 data[0] = 4;
1140 data[1] = 3;
1141 data[2] = 0x09;
1142 data[3] = 0x04;
1143 ret = 4;
1144 break;
1145
1146 case STRING_ETHADDR:
1147 ret = set_usb_string(data, s->usbstring_mac);
1148 break;
1149
1150 default:
1151 if (usb_net_stringtable[value & 0xff]) {
1152 ret = set_usb_string(data,
1153 usb_net_stringtable[value & 0xff]);
1154 break;
1155 }
1156
1157 goto fail;
1158 }
1159 break;
1160
1161 default:
1162 goto fail;
1163 }
1164 break;
1165
1166 case DeviceRequest | USB_REQ_GET_CONFIGURATION:
1167 data[0] = s->rndis ? DEV_RNDIS_CONFIG_VALUE : DEV_CONFIG_VALUE;
1168 ret = 1;
1169 break;
1170
1171 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
1172 switch (value & 0xff) {
1173 case DEV_CONFIG_VALUE:
1174 s->rndis = 0;
1175 break;
1176
1177 case DEV_RNDIS_CONFIG_VALUE:
1178 s->rndis = 1;
1179 break;
1180
1181 default:
1182 goto fail;
1183 }
1184 ret = 0;
1185 break;
1186
1187 case DeviceRequest | USB_REQ_GET_INTERFACE:
1188 case InterfaceRequest | USB_REQ_GET_INTERFACE:
1189 data[0] = 0;
1190 ret = 1;
1191 break;
1192
1193 case DeviceOutRequest | USB_REQ_SET_INTERFACE:
1194 case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
1195 ret = 0;
1196 break;
1197
1198 default:
1199 fail:
1200 fprintf(stderr, "usbnet: failed control transaction: "
1201 "request 0x%x value 0x%x index 0x%x length 0x%x\n",
1202 request, value, index, length);
1203 ret = USB_RET_STALL;
1204 break;
1205 }
1206 return ret;
1207 }
1208
1209 static int usb_net_handle_statusin(USBNetState *s, USBPacket *p)
1210 {
1211 int ret = 8;
1212
1213 if (p->len < 8)
1214 return USB_RET_STALL;
1215
1216 ((le32 *) p->data)[0] = cpu_to_le32(1);
1217 ((le32 *) p->data)[1] = cpu_to_le32(0);
1218 if (!s->rndis_resp.tqh_first)
1219 ret = USB_RET_NAK;
1220
1221 #ifdef TRAFFIC_DEBUG
1222 fprintf(stderr, "usbnet: interrupt poll len %u return %d", p->len, ret);
1223 {
1224 int i;
1225 fprintf(stderr, ":");
1226 for (i = 0; i < ret; i++) {
1227 if (!(i & 15))
1228 fprintf(stderr, "\n%04x:", i);
1229 fprintf(stderr, " %02x", p->data[i]);
1230 }
1231 fprintf(stderr, "\n\n");
1232 }
1233 #endif
1234
1235 return ret;
1236 }
1237
1238 static int usb_net_handle_datain(USBNetState *s, USBPacket *p)
1239 {
1240 int ret = USB_RET_NAK;
1241
1242 if (s->in_ptr > s->in_len) {
1243 s->in_ptr = s->in_len = 0;
1244 ret = USB_RET_NAK;
1245 return ret;
1246 }
1247 if (!s->in_len) {
1248 ret = USB_RET_NAK;
1249 return ret;
1250 }
1251 ret = s->in_len - s->in_ptr;
1252 if (ret > p->len)
1253 ret = p->len;
1254 memcpy(p->data, &s->in_buf[s->in_ptr], ret);
1255 s->in_ptr += ret;
1256 if (s->in_ptr >= s->in_len &&
1257 (s->rndis || (s->in_len & (64 - 1)) || !ret)) {
1258 /* no short packet necessary */
1259 s->in_ptr = s->in_len = 0;
1260 }
1261
1262 #ifdef TRAFFIC_DEBUG
1263 fprintf(stderr, "usbnet: data in len %u return %d", p->len, ret);
1264 {
1265 int i;
1266 fprintf(stderr, ":");
1267 for (i = 0; i < ret; i++) {
1268 if (!(i & 15))
1269 fprintf(stderr, "\n%04x:", i);
1270 fprintf(stderr, " %02x", p->data[i]);
1271 }
1272 fprintf(stderr, "\n\n");
1273 }
1274 #endif
1275
1276 return ret;
1277 }
1278
1279 static int usb_net_handle_dataout(USBNetState *s, USBPacket *p)
1280 {
1281 int ret = p->len;
1282 int sz = sizeof(s->out_buf) - s->out_ptr;
1283 struct rndis_packet_msg_type *msg =
1284 (struct rndis_packet_msg_type *) s->out_buf;
1285 uint32_t len;
1286
1287 #ifdef TRAFFIC_DEBUG
1288 fprintf(stderr, "usbnet: data out len %u\n", p->len);
1289 {
1290 int i;
1291 fprintf(stderr, ":");
1292 for (i = 0; i < p->len; i++) {
1293 if (!(i & 15))
1294 fprintf(stderr, "\n%04x:", i);
1295 fprintf(stderr, " %02x", p->data[i]);
1296 }
1297 fprintf(stderr, "\n\n");
1298 }
1299 #endif
1300
1301 if (sz > ret)
1302 sz = ret;
1303 memcpy(&s->out_buf[s->out_ptr], p->data, sz);
1304 s->out_ptr += sz;
1305
1306 if (!s->rndis) {
1307 if (ret < 64) {
1308 qemu_send_packet(s->vc, s->out_buf, s->out_ptr);
1309 s->out_ptr = 0;
1310 }
1311 return ret;
1312 }
1313 len = le32_to_cpu(msg->MessageLength);
1314 if (s->out_ptr < 8 || s->out_ptr < len)
1315 return ret;
1316 if (le32_to_cpu(msg->MessageType) == RNDIS_PACKET_MSG) {
1317 uint32_t offs = 8 + le32_to_cpu(msg->DataOffset);
1318 uint32_t size = le32_to_cpu(msg->DataLength);
1319 if (offs + size <= len)
1320 qemu_send_packet(s->vc, s->out_buf + offs, size);
1321 }
1322 s->out_ptr -= len;
1323 memmove(s->out_buf, &s->out_buf[len], s->out_ptr);
1324
1325 return ret;
1326 }
1327
1328 static int usb_net_handle_data(USBDevice *dev, USBPacket *p)
1329 {
1330 USBNetState *s = (USBNetState *) dev;
1331 int ret = 0;
1332
1333 switch(p->pid) {
1334 case USB_TOKEN_IN:
1335 switch (p->devep) {
1336 case 1:
1337 ret = usb_net_handle_statusin(s, p);
1338 break;
1339
1340 case 2:
1341 ret = usb_net_handle_datain(s, p);
1342 break;
1343
1344 default:
1345 goto fail;
1346 }
1347 break;
1348
1349 case USB_TOKEN_OUT:
1350 switch (p->devep) {
1351 case 2:
1352 ret = usb_net_handle_dataout(s, p);
1353 break;
1354
1355 default:
1356 goto fail;
1357 }
1358 break;
1359
1360 default:
1361 fail:
1362 ret = USB_RET_STALL;
1363 break;
1364 }
1365 if (ret == USB_RET_STALL)
1366 fprintf(stderr, "usbnet: failed data transaction: "
1367 "pid 0x%x ep 0x%x len 0x%x\n",
1368 p->pid, p->devep, p->len);
1369 return ret;
1370 }
1371
1372 static ssize_t usbnet_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
1373 {
1374 USBNetState *s = vc->opaque;
1375 struct rndis_packet_msg_type *msg;
1376
1377 if (s->rndis) {
1378 msg = (struct rndis_packet_msg_type *) s->in_buf;
1379 if (!s->rndis_state == RNDIS_DATA_INITIALIZED)
1380 return -1;
1381 if (size + sizeof(struct rndis_packet_msg_type) > sizeof(s->in_buf))
1382 return -1;
1383
1384 memset(msg, 0, sizeof(struct rndis_packet_msg_type));
1385 msg->MessageType = cpu_to_le32(RNDIS_PACKET_MSG);
1386 msg->MessageLength = cpu_to_le32(size + sizeof(struct rndis_packet_msg_type));
1387 msg->DataOffset = cpu_to_le32(sizeof(struct rndis_packet_msg_type) - 8);
1388 msg->DataLength = cpu_to_le32(size);
1389 /* msg->OOBDataOffset;
1390 * msg->OOBDataLength;
1391 * msg->NumOOBDataElements;
1392 * msg->PerPacketInfoOffset;
1393 * msg->PerPacketInfoLength;
1394 * msg->VcHandle;
1395 * msg->Reserved;
1396 */
1397 memcpy(msg + 1, buf, size);
1398 s->in_len = size + sizeof(struct rndis_packet_msg_type);
1399 } else {
1400 if (size > sizeof(s->in_buf))
1401 return -1;
1402 memcpy(s->in_buf, buf, size);
1403 s->in_len = size;
1404 }
1405 s->in_ptr = 0;
1406 return size;
1407 }
1408
1409 static int usbnet_can_receive(VLANClientState *vc)
1410 {
1411 USBNetState *s = vc->opaque;
1412
1413 if (s->rndis && !s->rndis_state == RNDIS_DATA_INITIALIZED)
1414 return 1;
1415
1416 return !s->in_len;
1417 }
1418
1419 static void usbnet_cleanup(VLANClientState *vc)
1420 {
1421 USBNetState *s = vc->opaque;
1422
1423 rndis_clear_responsequeue(s);
1424 qemu_free(s);
1425 }
1426
1427 static void usb_net_handle_destroy(USBDevice *dev)
1428 {
1429 USBNetState *s = (USBNetState *) dev;
1430
1431 /* TODO: remove the nd_table[] entry */
1432 qemu_del_vlan_client(s->vc);
1433 }
1434
1435 USBDevice *usb_net_init(NICInfo *nd)
1436 {
1437 USBNetState *s;
1438
1439 s = qemu_mallocz(sizeof(USBNetState));
1440 s->dev.speed = USB_SPEED_FULL;
1441 s->dev.handle_packet = usb_generic_handle_packet;
1442
1443 s->dev.handle_reset = usb_net_handle_reset;
1444 s->dev.handle_control = usb_net_handle_control;
1445 s->dev.handle_data = usb_net_handle_data;
1446 s->dev.handle_destroy = usb_net_handle_destroy;
1447
1448 s->rndis = 1;
1449 s->rndis_state = RNDIS_UNINITIALIZED;
1450 s->medium = 0; /* NDIS_MEDIUM_802_3 */
1451 s->speed = 1000000; /* 100MBps, in 100Bps units */
1452 s->media_state = 0; /* NDIS_MEDIA_STATE_CONNECTED */;
1453 s->filter = 0;
1454 s->vendorid = 0x1234;
1455
1456 memcpy(s->mac, nd->macaddr, 6);
1457 TAILQ_INIT(&s->rndis_resp);
1458
1459 pstrcpy(s->dev.devname, sizeof(s->dev.devname),
1460 "QEMU USB Network Interface");
1461 s->vc = nd->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name,
1462 usbnet_can_receive,
1463 usbnet_receive,
1464 NULL,
1465 usbnet_cleanup, s);
1466
1467 qemu_format_nic_info_str(s->vc, s->mac);
1468
1469 snprintf(s->usbstring_mac, sizeof(s->usbstring_mac),
1470 "%02x%02x%02x%02x%02x%02x",
1471 0x40, s->mac[1], s->mac[2],
1472 s->mac[3], s->mac[4], s->mac[5]);
1473 fprintf(stderr, "usbnet: initialized mac %02x:%02x:%02x:%02x:%02x:%02x\n",
1474 s->mac[0], s->mac[1], s->mac[2],
1475 s->mac[3], s->mac[4], s->mac[5]);
1476
1477 return (USBDevice *) s;
1478 }
Patches shipped by Fedora