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escc: avoid structure holes spotted by pahole
[qemu/mdroth.git] / hw / usb-net.c
bloba8b7c8dd76953b10594612b50ba7693ed170ee29
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 "usb-desc.h"
29 #include "net.h"
30 #include "qemu-queue.h"
31 #include "sysemu.h"
32 #include "iov.h"
33
34 /*#define TRAFFIC_DEBUG*/
35 /* Thanks to NetChip Technologies for donating this product ID.
36 * It's for devices with only CDC Ethernet configurations.
37 */
38 #define CDC_VENDOR_NUM 0x0525 /* NetChip */
39 #define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */
40 /* For hardware that can talk RNDIS and either of the above protocols,
41 * use this ID ... the windows INF files will know it.
42 */
43 #define RNDIS_VENDOR_NUM 0x0525 /* NetChip */
44 #define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */
45
46 enum usbstring_idx {
47 STRING_MANUFACTURER = 1,
48 STRING_PRODUCT,
49 STRING_ETHADDR,
50 STRING_DATA,
51 STRING_CONTROL,
52 STRING_RNDIS_CONTROL,
53 STRING_CDC,
54 STRING_SUBSET,
55 STRING_RNDIS,
56 STRING_SERIALNUMBER,
57 };
58
59 #define DEV_CONFIG_VALUE 1 /* CDC or a subset */
60 #define DEV_RNDIS_CONFIG_VALUE 2 /* RNDIS; optional */
61
62 #define USB_CDC_SUBCLASS_ACM 0x02
63 #define USB_CDC_SUBCLASS_ETHERNET 0x06
64
65 #define USB_CDC_PROTO_NONE 0
66 #define USB_CDC_ACM_PROTO_VENDOR 0xff
67
68 #define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
69 #define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
70 #define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
71 #define USB_CDC_UNION_TYPE 0x06 /* union_desc */
72 #define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
73
74 #define USB_DT_CS_INTERFACE 0x24
75 #define USB_DT_CS_ENDPOINT 0x25
76
77 #define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
78 #define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
79 #define USB_CDC_REQ_SET_LINE_CODING 0x20
80 #define USB_CDC_REQ_GET_LINE_CODING 0x21
81 #define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
82 #define USB_CDC_REQ_SEND_BREAK 0x23
83 #define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
84 #define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
85 #define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
86 #define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
87 #define USB_CDC_GET_ETHERNET_STATISTIC 0x44
88
89 #define LOG2_STATUS_INTERVAL_MSEC 5 /* 1 << 5 == 32 msec */
90 #define STATUS_BYTECOUNT 16 /* 8 byte header + data */
91
92 #define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
93
94 static const USBDescStrings usb_net_stringtable = {
95 [STRING_MANUFACTURER] = "QEMU",
96 [STRING_PRODUCT] = "RNDIS/QEMU USB Network Device",
97 [STRING_ETHADDR] = "400102030405",
98 [STRING_DATA] = "QEMU USB Net Data Interface",
99 [STRING_CONTROL] = "QEMU USB Net Control Interface",
100 [STRING_RNDIS_CONTROL] = "QEMU USB Net RNDIS Control Interface",
101 [STRING_CDC] = "QEMU USB Net CDC",
102 [STRING_SUBSET] = "QEMU USB Net Subset",
103 [STRING_RNDIS] = "QEMU USB Net RNDIS",
104 [STRING_SERIALNUMBER] = "1",
105 };
106
107 static const USBDescIface desc_iface_rndis[] = {
108 {
109 /* RNDIS Control Interface */
110 .bInterfaceNumber = 0,
111 .bNumEndpoints = 1,
112 .bInterfaceClass = USB_CLASS_COMM,
113 .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
114 .bInterfaceProtocol = USB_CDC_ACM_PROTO_VENDOR,
115 .iInterface = STRING_RNDIS_CONTROL,
116 .ndesc = 4,
117 .descs = (USBDescOther[]) {
118 {
119 /* Header Descriptor */
120 .data = (uint8_t[]) {
121 0x05, /* u8 bLength */
122 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
123 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
124 0x10, 0x01, /* le16 bcdCDC */
125 },
126 },{
127 /* Call Management Descriptor */
128 .data = (uint8_t[]) {
129 0x05, /* u8 bLength */
130 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
131 USB_CDC_CALL_MANAGEMENT_TYPE, /* u8 bDescriptorSubType */
132 0x00, /* u8 bmCapabilities */
133 0x01, /* u8 bDataInterface */
134 },
135 },{
136 /* ACM Descriptor */
137 .data = (uint8_t[]) {
138 0x04, /* u8 bLength */
139 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
140 USB_CDC_ACM_TYPE, /* u8 bDescriptorSubType */
141 0x00, /* u8 bmCapabilities */
142 },
143 },{
144 /* Union Descriptor */
145 .data = (uint8_t[]) {
146 0x05, /* u8 bLength */
147 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
148 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
149 0x00, /* u8 bMasterInterface0 */
150 0x01, /* u8 bSlaveInterface0 */
151 },
152 },
153 },
154 .eps = (USBDescEndpoint[]) {
155 {
156 .bEndpointAddress = USB_DIR_IN | 0x01,
157 .bmAttributes = USB_ENDPOINT_XFER_INT,
158 .wMaxPacketSize = STATUS_BYTECOUNT,
159 .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC,
160 },
161 }
162 },{
163 /* RNDIS Data Interface */
164 .bInterfaceNumber = 1,
165 .bNumEndpoints = 2,
166 .bInterfaceClass = USB_CLASS_CDC_DATA,
167 .iInterface = STRING_DATA,
168 .eps = (USBDescEndpoint[]) {
169 {
170 .bEndpointAddress = USB_DIR_IN | 0x02,
171 .bmAttributes = USB_ENDPOINT_XFER_BULK,
172 .wMaxPacketSize = 0x40,
173 },{
174 .bEndpointAddress = USB_DIR_OUT | 0x02,
175 .bmAttributes = USB_ENDPOINT_XFER_BULK,
176 .wMaxPacketSize = 0x40,
177 }
178 }
179 }
180 };
181
182 static const USBDescIface desc_iface_cdc[] = {
183 {
184 /* CDC Control Interface */
185 .bInterfaceNumber = 0,
186 .bNumEndpoints = 1,
187 .bInterfaceClass = USB_CLASS_COMM,
188 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET,
189 .bInterfaceProtocol = USB_CDC_PROTO_NONE,
190 .iInterface = STRING_CONTROL,
191 .ndesc = 3,
192 .descs = (USBDescOther[]) {
193 {
194 /* Header Descriptor */
195 .data = (uint8_t[]) {
196 0x05, /* u8 bLength */
197 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
198 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
199 0x10, 0x01, /* le16 bcdCDC */
200 },
201 },{
202 /* Union Descriptor */
203 .data = (uint8_t[]) {
204 0x05, /* u8 bLength */
205 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
206 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
207 0x00, /* u8 bMasterInterface0 */
208 0x01, /* u8 bSlaveInterface0 */
209 },
210 },{
211 /* Ethernet Descriptor */
212 .data = (uint8_t[]) {
213 0x0d, /* u8 bLength */
214 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
215 USB_CDC_ETHERNET_TYPE, /* u8 bDescriptorSubType */
216 STRING_ETHADDR, /* u8 iMACAddress */
217 0x00, 0x00, 0x00, 0x00, /* le32 bmEthernetStatistics */
218 ETH_FRAME_LEN & 0xff,
219 ETH_FRAME_LEN >> 8, /* le16 wMaxSegmentSize */
220 0x00, 0x00, /* le16 wNumberMCFilters */
221 0x00, /* u8 bNumberPowerFilters */
222 },
223 },
224 },
225 .eps = (USBDescEndpoint[]) {
226 {
227 .bEndpointAddress = USB_DIR_IN | 0x01,
228 .bmAttributes = USB_ENDPOINT_XFER_INT,
229 .wMaxPacketSize = STATUS_BYTECOUNT,
230 .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC,
231 },
232 }
233 },{
234 /* CDC Data Interface (off) */
235 .bInterfaceNumber = 1,
236 .bAlternateSetting = 0,
237 .bNumEndpoints = 0,
238 .bInterfaceClass = USB_CLASS_CDC_DATA,
239 },{
240 /* CDC Data Interface */
241 .bInterfaceNumber = 1,
242 .bAlternateSetting = 1,
243 .bNumEndpoints = 2,
244 .bInterfaceClass = USB_CLASS_CDC_DATA,
245 .iInterface = STRING_DATA,
246 .eps = (USBDescEndpoint[]) {
247 {
248 .bEndpointAddress = USB_DIR_IN | 0x02,
249 .bmAttributes = USB_ENDPOINT_XFER_BULK,
250 .wMaxPacketSize = 0x40,
251 },{
252 .bEndpointAddress = USB_DIR_OUT | 0x02,
253 .bmAttributes = USB_ENDPOINT_XFER_BULK,
254 .wMaxPacketSize = 0x40,
255 }
256 }
257 }
258 };
259
260 static const USBDescDevice desc_device_net = {
261 .bcdUSB = 0x0200,
262 .bDeviceClass = USB_CLASS_COMM,
263 .bMaxPacketSize0 = 0x40,
264 .bNumConfigurations = 2,
265 .confs = (USBDescConfig[]) {
266 {
267 .bNumInterfaces = 2,
268 .bConfigurationValue = DEV_RNDIS_CONFIG_VALUE,
269 .iConfiguration = STRING_RNDIS,
270 .bmAttributes = 0xc0,
271 .bMaxPower = 0x32,
272 .nif = ARRAY_SIZE(desc_iface_rndis),
273 .ifs = desc_iface_rndis,
274 },{
275 .bNumInterfaces = 2,
276 .bConfigurationValue = DEV_CONFIG_VALUE,
277 .iConfiguration = STRING_CDC,
278 .bmAttributes = 0xc0,
279 .bMaxPower = 0x32,
280 .nif = ARRAY_SIZE(desc_iface_cdc),
281 .ifs = desc_iface_cdc,
282 }
283 },
284 };
285
286 static const USBDesc desc_net = {
287 .id = {
288 .idVendor = RNDIS_VENDOR_NUM,
289 .idProduct = RNDIS_PRODUCT_NUM,
290 .bcdDevice = 0,
291 .iManufacturer = STRING_MANUFACTURER,
292 .iProduct = STRING_PRODUCT,
293 .iSerialNumber = STRING_SERIALNUMBER,
294 },
295 .full = &desc_device_net,
296 .str = usb_net_stringtable,
297 };
298
299 /*
300 * RNDIS Definitions - in theory not specific to USB.
301 */
302 #define RNDIS_MAXIMUM_FRAME_SIZE 1518
303 #define RNDIS_MAX_TOTAL_SIZE 1558
304
305 /* Remote NDIS Versions */
306 #define RNDIS_MAJOR_VERSION 1
307 #define RNDIS_MINOR_VERSION 0
308
309 /* Status Values */
310 #define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */
311 #define RNDIS_STATUS_FAILURE 0xc0000001U /* Unspecified error */
312 #define RNDIS_STATUS_INVALID_DATA 0xc0010015U /* Invalid data */
313 #define RNDIS_STATUS_NOT_SUPPORTED 0xc00000bbU /* Unsupported request */
314 #define RNDIS_STATUS_MEDIA_CONNECT 0x4001000bU /* Device connected */
315 #define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000cU /* Device disconnected */
316
317 /* Message Set for Connectionless (802.3) Devices */
318 enum {
319 RNDIS_PACKET_MSG = 1,
320 RNDIS_INITIALIZE_MSG = 2, /* Initialize device */
321 RNDIS_HALT_MSG = 3,
322 RNDIS_QUERY_MSG = 4,
323 RNDIS_SET_MSG = 5,
324 RNDIS_RESET_MSG = 6,
325 RNDIS_INDICATE_STATUS_MSG = 7,
326 RNDIS_KEEPALIVE_MSG = 8,
327 };
328
329 /* Message completion */
330 enum {
331 RNDIS_INITIALIZE_CMPLT = 0x80000002U,
332 RNDIS_QUERY_CMPLT = 0x80000004U,
333 RNDIS_SET_CMPLT = 0x80000005U,
334 RNDIS_RESET_CMPLT = 0x80000006U,
335 RNDIS_KEEPALIVE_CMPLT = 0x80000008U,
336 };
337
338 /* Device Flags */
339 enum {
340 RNDIS_DF_CONNECTIONLESS = 1,
341 RNDIS_DF_CONNECTIONORIENTED = 2,
342 };
343
344 #define RNDIS_MEDIUM_802_3 0x00000000U
345
346 /* from drivers/net/sk98lin/h/skgepnmi.h */
347 #define OID_PNP_CAPABILITIES 0xfd010100
348 #define OID_PNP_SET_POWER 0xfd010101
349 #define OID_PNP_QUERY_POWER 0xfd010102
350 #define OID_PNP_ADD_WAKE_UP_PATTERN 0xfd010103
351 #define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xfd010104
352 #define OID_PNP_ENABLE_WAKE_UP 0xfd010106
353
354 typedef uint32_t le32;
355
356 typedef struct rndis_init_msg_type {
357 le32 MessageType;
358 le32 MessageLength;
359 le32 RequestID;
360 le32 MajorVersion;
361 le32 MinorVersion;
362 le32 MaxTransferSize;
363 } rndis_init_msg_type;
364
365 typedef struct rndis_init_cmplt_type {
366 le32 MessageType;
367 le32 MessageLength;
368 le32 RequestID;
369 le32 Status;
370 le32 MajorVersion;
371 le32 MinorVersion;
372 le32 DeviceFlags;
373 le32 Medium;
374 le32 MaxPacketsPerTransfer;
375 le32 MaxTransferSize;
376 le32 PacketAlignmentFactor;
377 le32 AFListOffset;
378 le32 AFListSize;
379 } rndis_init_cmplt_type;
380
381 typedef struct rndis_halt_msg_type {
382 le32 MessageType;
383 le32 MessageLength;
384 le32 RequestID;
385 } rndis_halt_msg_type;
386
387 typedef struct rndis_query_msg_type {
388 le32 MessageType;
389 le32 MessageLength;
390 le32 RequestID;
391 le32 OID;
392 le32 InformationBufferLength;
393 le32 InformationBufferOffset;
394 le32 DeviceVcHandle;
395 } rndis_query_msg_type;
396
397 typedef struct rndis_query_cmplt_type {
398 le32 MessageType;
399 le32 MessageLength;
400 le32 RequestID;
401 le32 Status;
402 le32 InformationBufferLength;
403 le32 InformationBufferOffset;
404 } rndis_query_cmplt_type;
405
406 typedef struct rndis_set_msg_type {
407 le32 MessageType;
408 le32 MessageLength;
409 le32 RequestID;
410 le32 OID;
411 le32 InformationBufferLength;
412 le32 InformationBufferOffset;
413 le32 DeviceVcHandle;
414 } rndis_set_msg_type;
415
416 typedef struct rndis_set_cmplt_type {
417 le32 MessageType;
418 le32 MessageLength;
419 le32 RequestID;
420 le32 Status;
421 } rndis_set_cmplt_type;
422
423 typedef struct rndis_reset_msg_type {
424 le32 MessageType;
425 le32 MessageLength;
426 le32 Reserved;
427 } rndis_reset_msg_type;
428
429 typedef struct rndis_reset_cmplt_type {
430 le32 MessageType;
431 le32 MessageLength;
432 le32 Status;
433 le32 AddressingReset;
434 } rndis_reset_cmplt_type;
435
436 typedef struct rndis_indicate_status_msg_type {
437 le32 MessageType;
438 le32 MessageLength;
439 le32 Status;
440 le32 StatusBufferLength;
441 le32 StatusBufferOffset;
442 } rndis_indicate_status_msg_type;
443
444 typedef struct rndis_keepalive_msg_type {
445 le32 MessageType;
446 le32 MessageLength;
447 le32 RequestID;
448 } rndis_keepalive_msg_type;
449
450 typedef struct rndis_keepalive_cmplt_type {
451 le32 MessageType;
452 le32 MessageLength;
453 le32 RequestID;
454 le32 Status;
455 } rndis_keepalive_cmplt_type;
456
457 struct rndis_packet_msg_type {
458 le32 MessageType;
459 le32 MessageLength;
460 le32 DataOffset;
461 le32 DataLength;
462 le32 OOBDataOffset;
463 le32 OOBDataLength;
464 le32 NumOOBDataElements;
465 le32 PerPacketInfoOffset;
466 le32 PerPacketInfoLength;
467 le32 VcHandle;
468 le32 Reserved;
469 };
470
471 struct rndis_config_parameter {
472 le32 ParameterNameOffset;
473 le32 ParameterNameLength;
474 le32 ParameterType;
475 le32 ParameterValueOffset;
476 le32 ParameterValueLength;
477 };
478
479 /* implementation specific */
480 enum rndis_state
481 {
482 RNDIS_UNINITIALIZED,
483 RNDIS_INITIALIZED,
484 RNDIS_DATA_INITIALIZED,
485 };
486
487 /* from ndis.h */
488 enum ndis_oid {
489 /* Required Object IDs (OIDs) */
490 OID_GEN_SUPPORTED_LIST = 0x00010101,
491 OID_GEN_HARDWARE_STATUS = 0x00010102,
492 OID_GEN_MEDIA_SUPPORTED = 0x00010103,
493 OID_GEN_MEDIA_IN_USE = 0x00010104,
494 OID_GEN_MAXIMUM_LOOKAHEAD = 0x00010105,
495 OID_GEN_MAXIMUM_FRAME_SIZE = 0x00010106,
496 OID_GEN_LINK_SPEED = 0x00010107,
497 OID_GEN_TRANSMIT_BUFFER_SPACE = 0x00010108,
498 OID_GEN_RECEIVE_BUFFER_SPACE = 0x00010109,
499 OID_GEN_TRANSMIT_BLOCK_SIZE = 0x0001010a,
500 OID_GEN_RECEIVE_BLOCK_SIZE = 0x0001010b,
501 OID_GEN_VENDOR_ID = 0x0001010c,
502 OID_GEN_VENDOR_DESCRIPTION = 0x0001010d,
503 OID_GEN_CURRENT_PACKET_FILTER = 0x0001010e,
504 OID_GEN_CURRENT_LOOKAHEAD = 0x0001010f,
505 OID_GEN_DRIVER_VERSION = 0x00010110,
506 OID_GEN_MAXIMUM_TOTAL_SIZE = 0x00010111,
507 OID_GEN_PROTOCOL_OPTIONS = 0x00010112,
508 OID_GEN_MAC_OPTIONS = 0x00010113,
509 OID_GEN_MEDIA_CONNECT_STATUS = 0x00010114,
510 OID_GEN_MAXIMUM_SEND_PACKETS = 0x00010115,
511 OID_GEN_VENDOR_DRIVER_VERSION = 0x00010116,
512 OID_GEN_SUPPORTED_GUIDS = 0x00010117,
513 OID_GEN_NETWORK_LAYER_ADDRESSES = 0x00010118,
514 OID_GEN_TRANSPORT_HEADER_OFFSET = 0x00010119,
515 OID_GEN_MACHINE_NAME = 0x0001021a,
516 OID_GEN_RNDIS_CONFIG_PARAMETER = 0x0001021b,
517 OID_GEN_VLAN_ID = 0x0001021c,
518
519 /* Optional OIDs */
520 OID_GEN_MEDIA_CAPABILITIES = 0x00010201,
521 OID_GEN_PHYSICAL_MEDIUM = 0x00010202,
522
523 /* Required statistics OIDs */
524 OID_GEN_XMIT_OK = 0x00020101,
525 OID_GEN_RCV_OK = 0x00020102,
526 OID_GEN_XMIT_ERROR = 0x00020103,
527 OID_GEN_RCV_ERROR = 0x00020104,
528 OID_GEN_RCV_NO_BUFFER = 0x00020105,
529
530 /* Optional statistics OIDs */
531 OID_GEN_DIRECTED_BYTES_XMIT = 0x00020201,
532 OID_GEN_DIRECTED_FRAMES_XMIT = 0x00020202,
533 OID_GEN_MULTICAST_BYTES_XMIT = 0x00020203,
534 OID_GEN_MULTICAST_FRAMES_XMIT = 0x00020204,
535 OID_GEN_BROADCAST_BYTES_XMIT = 0x00020205,
536 OID_GEN_BROADCAST_FRAMES_XMIT = 0x00020206,
537 OID_GEN_DIRECTED_BYTES_RCV = 0x00020207,
538 OID_GEN_DIRECTED_FRAMES_RCV = 0x00020208,
539 OID_GEN_MULTICAST_BYTES_RCV = 0x00020209,
540 OID_GEN_MULTICAST_FRAMES_RCV = 0x0002020a,
541 OID_GEN_BROADCAST_BYTES_RCV = 0x0002020b,
542 OID_GEN_BROADCAST_FRAMES_RCV = 0x0002020c,
543 OID_GEN_RCV_CRC_ERROR = 0x0002020d,
544 OID_GEN_TRANSMIT_QUEUE_LENGTH = 0x0002020e,
545 OID_GEN_GET_TIME_CAPS = 0x0002020f,
546 OID_GEN_GET_NETCARD_TIME = 0x00020210,
547 OID_GEN_NETCARD_LOAD = 0x00020211,
548 OID_GEN_DEVICE_PROFILE = 0x00020212,
549 OID_GEN_INIT_TIME_MS = 0x00020213,
550 OID_GEN_RESET_COUNTS = 0x00020214,
551 OID_GEN_MEDIA_SENSE_COUNTS = 0x00020215,
552 OID_GEN_FRIENDLY_NAME = 0x00020216,
553 OID_GEN_MINIPORT_INFO = 0x00020217,
554 OID_GEN_RESET_VERIFY_PARAMETERS = 0x00020218,
555
556 /* IEEE 802.3 (Ethernet) OIDs */
557 OID_802_3_PERMANENT_ADDRESS = 0x01010101,
558 OID_802_3_CURRENT_ADDRESS = 0x01010102,
559 OID_802_3_MULTICAST_LIST = 0x01010103,
560 OID_802_3_MAXIMUM_LIST_SIZE = 0x01010104,
561 OID_802_3_MAC_OPTIONS = 0x01010105,
562 OID_802_3_RCV_ERROR_ALIGNMENT = 0x01020101,
563 OID_802_3_XMIT_ONE_COLLISION = 0x01020102,
564 OID_802_3_XMIT_MORE_COLLISIONS = 0x01020103,
565 OID_802_3_XMIT_DEFERRED = 0x01020201,
566 OID_802_3_XMIT_MAX_COLLISIONS = 0x01020202,
567 OID_802_3_RCV_OVERRUN = 0x01020203,
568 OID_802_3_XMIT_UNDERRUN = 0x01020204,
569 OID_802_3_XMIT_HEARTBEAT_FAILURE = 0x01020205,
570 OID_802_3_XMIT_TIMES_CRS_LOST = 0x01020206,
571 OID_802_3_XMIT_LATE_COLLISIONS = 0x01020207,
572 };
573
574 static const uint32_t oid_supported_list[] =
575 {
576 /* the general stuff */
577 OID_GEN_SUPPORTED_LIST,
578 OID_GEN_HARDWARE_STATUS,
579 OID_GEN_MEDIA_SUPPORTED,
580 OID_GEN_MEDIA_IN_USE,
581 OID_GEN_MAXIMUM_FRAME_SIZE,
582 OID_GEN_LINK_SPEED,
583 OID_GEN_TRANSMIT_BLOCK_SIZE,
584 OID_GEN_RECEIVE_BLOCK_SIZE,
585 OID_GEN_VENDOR_ID,
586 OID_GEN_VENDOR_DESCRIPTION,
587 OID_GEN_VENDOR_DRIVER_VERSION,
588 OID_GEN_CURRENT_PACKET_FILTER,
589 OID_GEN_MAXIMUM_TOTAL_SIZE,
590 OID_GEN_MEDIA_CONNECT_STATUS,
591 OID_GEN_PHYSICAL_MEDIUM,
592
593 /* the statistical stuff */
594 OID_GEN_XMIT_OK,
595 OID_GEN_RCV_OK,
596 OID_GEN_XMIT_ERROR,
597 OID_GEN_RCV_ERROR,
598 OID_GEN_RCV_NO_BUFFER,
599
600 /* IEEE 802.3 */
601 /* the general stuff */
602 OID_802_3_PERMANENT_ADDRESS,
603 OID_802_3_CURRENT_ADDRESS,
604 OID_802_3_MULTICAST_LIST,
605 OID_802_3_MAC_OPTIONS,
606 OID_802_3_MAXIMUM_LIST_SIZE,
607
608 /* the statistical stuff */
609 OID_802_3_RCV_ERROR_ALIGNMENT,
610 OID_802_3_XMIT_ONE_COLLISION,
611 OID_802_3_XMIT_MORE_COLLISIONS,
612 };
613
614 #define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA (1 << 0)
615 #define NDIS_MAC_OPTION_RECEIVE_SERIALIZED (1 << 1)
616 #define NDIS_MAC_OPTION_TRANSFERS_NOT_PEND (1 << 2)
617 #define NDIS_MAC_OPTION_NO_LOOPBACK (1 << 3)
618 #define NDIS_MAC_OPTION_FULL_DUPLEX (1 << 4)
619 #define NDIS_MAC_OPTION_EOTX_INDICATION (1 << 5)
620 #define NDIS_MAC_OPTION_8021P_PRIORITY (1 << 6)
621
622 struct rndis_response {
623 QTAILQ_ENTRY(rndis_response) entries;
624 uint32_t length;
625 uint8_t buf[0];
626 };
627
628 typedef struct USBNetState {
629 USBDevice dev;
630
631 enum rndis_state rndis_state;
632 uint32_t medium;
633 uint32_t speed;
634 uint32_t media_state;
635 uint16_t filter;
636 uint32_t vendorid;
637
638 unsigned int out_ptr;
639 uint8_t out_buf[2048];
640
641 USBPacket *inpkt;
642 unsigned int in_ptr, in_len;
643 uint8_t in_buf[2048];
644
645 char usbstring_mac[13];
646 NICState *nic;
647 NICConf conf;
648 QTAILQ_HEAD(rndis_resp_head, rndis_response) rndis_resp;
649 } USBNetState;
650
651 static int is_rndis(USBNetState *s)
652 {
653 return s->dev.config->bConfigurationValue == DEV_RNDIS_CONFIG_VALUE;
654 }
655
656 static int ndis_query(USBNetState *s, uint32_t oid,
657 uint8_t *inbuf, unsigned int inlen, uint8_t *outbuf,
658 size_t outlen)
659 {
660 unsigned int i;
661
662 switch (oid) {
663 /* general oids (table 4-1) */
664 /* mandatory */
665 case OID_GEN_SUPPORTED_LIST:
666 for (i = 0; i < ARRAY_SIZE(oid_supported_list); i++)
667 ((le32 *) outbuf)[i] = cpu_to_le32(oid_supported_list[i]);
668 return sizeof(oid_supported_list);
669
670 /* mandatory */
671 case OID_GEN_HARDWARE_STATUS:
672 *((le32 *) outbuf) = cpu_to_le32(0);
673 return sizeof(le32);
674
675 /* mandatory */
676 case OID_GEN_MEDIA_SUPPORTED:
677 *((le32 *) outbuf) = cpu_to_le32(s->medium);
678 return sizeof(le32);
679
680 /* mandatory */
681 case OID_GEN_MEDIA_IN_USE:
682 *((le32 *) outbuf) = cpu_to_le32(s->medium);
683 return sizeof(le32);
684
685 /* mandatory */
686 case OID_GEN_MAXIMUM_FRAME_SIZE:
687 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
688 return sizeof(le32);
689
690 /* mandatory */
691 case OID_GEN_LINK_SPEED:
692 *((le32 *) outbuf) = cpu_to_le32(s->speed);
693 return sizeof(le32);
694
695 /* mandatory */
696 case OID_GEN_TRANSMIT_BLOCK_SIZE:
697 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
698 return sizeof(le32);
699
700 /* mandatory */
701 case OID_GEN_RECEIVE_BLOCK_SIZE:
702 *((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
703 return sizeof(le32);
704
705 /* mandatory */
706 case OID_GEN_VENDOR_ID:
707 *((le32 *) outbuf) = cpu_to_le32(s->vendorid);
708 return sizeof(le32);
709
710 /* mandatory */
711 case OID_GEN_VENDOR_DESCRIPTION:
712 pstrcpy((char *)outbuf, outlen, "QEMU USB RNDIS Net");
713 return strlen((char *)outbuf) + 1;
714
715 case OID_GEN_VENDOR_DRIVER_VERSION:
716 *((le32 *) outbuf) = cpu_to_le32(1);
717 return sizeof(le32);
718
719 /* mandatory */
720 case OID_GEN_CURRENT_PACKET_FILTER:
721 *((le32 *) outbuf) = cpu_to_le32(s->filter);
722 return sizeof(le32);
723
724 /* mandatory */
725 case OID_GEN_MAXIMUM_TOTAL_SIZE:
726 *((le32 *) outbuf) = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
727 return sizeof(le32);
728
729 /* mandatory */
730 case OID_GEN_MEDIA_CONNECT_STATUS:
731 *((le32 *) outbuf) = cpu_to_le32(s->media_state);
732 return sizeof(le32);
733
734 case OID_GEN_PHYSICAL_MEDIUM:
735 *((le32 *) outbuf) = cpu_to_le32(0);
736 return sizeof(le32);
737
738 case OID_GEN_MAC_OPTIONS:
739 *((le32 *) outbuf) = cpu_to_le32(
740 NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
741 NDIS_MAC_OPTION_FULL_DUPLEX);
742 return sizeof(le32);
743
744 /* statistics OIDs (table 4-2) */
745 /* mandatory */
746 case OID_GEN_XMIT_OK:
747 *((le32 *) outbuf) = cpu_to_le32(0);
748 return sizeof(le32);
749
750 /* mandatory */
751 case OID_GEN_RCV_OK:
752 *((le32 *) outbuf) = cpu_to_le32(0);
753 return sizeof(le32);
754
755 /* mandatory */
756 case OID_GEN_XMIT_ERROR:
757 *((le32 *) outbuf) = cpu_to_le32(0);
758 return sizeof(le32);
759
760 /* mandatory */
761 case OID_GEN_RCV_ERROR:
762 *((le32 *) outbuf) = cpu_to_le32(0);
763 return sizeof(le32);
764
765 /* mandatory */
766 case OID_GEN_RCV_NO_BUFFER:
767 *((le32 *) outbuf) = cpu_to_le32(0);
768 return sizeof(le32);
769
770 /* ieee802.3 OIDs (table 4-3) */
771 /* mandatory */
772 case OID_802_3_PERMANENT_ADDRESS:
773 memcpy(outbuf, s->conf.macaddr.a, 6);
774 return 6;
775
776 /* mandatory */
777 case OID_802_3_CURRENT_ADDRESS:
778 memcpy(outbuf, s->conf.macaddr.a, 6);
779 return 6;
780
781 /* mandatory */
782 case OID_802_3_MULTICAST_LIST:
783 *((le32 *) outbuf) = cpu_to_le32(0xe0000000);
784 return sizeof(le32);
785
786 /* mandatory */
787 case OID_802_3_MAXIMUM_LIST_SIZE:
788 *((le32 *) outbuf) = cpu_to_le32(1);
789 return sizeof(le32);
790
791 case OID_802_3_MAC_OPTIONS:
792 return 0;
793
794 /* ieee802.3 statistics OIDs (table 4-4) */
795 /* mandatory */
796 case OID_802_3_RCV_ERROR_ALIGNMENT:
797 *((le32 *) outbuf) = cpu_to_le32(0);
798 return sizeof(le32);
799
800 /* mandatory */
801 case OID_802_3_XMIT_ONE_COLLISION:
802 *((le32 *) outbuf) = cpu_to_le32(0);
803 return sizeof(le32);
804
805 /* mandatory */
806 case OID_802_3_XMIT_MORE_COLLISIONS:
807 *((le32 *) outbuf) = cpu_to_le32(0);
808 return sizeof(le32);
809
810 default:
811 fprintf(stderr, "usbnet: unknown OID 0x%08x\n", oid);
812 return 0;
813 }
814 return -1;
815 }
816
817 static int ndis_set(USBNetState *s, uint32_t oid,
818 uint8_t *inbuf, unsigned int inlen)
819 {
820 switch (oid) {
821 case OID_GEN_CURRENT_PACKET_FILTER:
822 s->filter = le32_to_cpup((le32 *) inbuf);
823 if (s->filter) {
824 s->rndis_state = RNDIS_DATA_INITIALIZED;
825 } else {
826 s->rndis_state = RNDIS_INITIALIZED;
827 }
828 return 0;
829
830 case OID_802_3_MULTICAST_LIST:
831 return 0;
832 }
833 return -1;
834 }
835
836 static int rndis_get_response(USBNetState *s, uint8_t *buf)
837 {
838 int ret = 0;
839 struct rndis_response *r = s->rndis_resp.tqh_first;
840
841 if (!r)
842 return ret;
843
844 QTAILQ_REMOVE(&s->rndis_resp, r, entries);
845 ret = r->length;
846 memcpy(buf, r->buf, r->length);
847 g_free(r);
848
849 return ret;
850 }
851
852 static void *rndis_queue_response(USBNetState *s, unsigned int length)
853 {
854 struct rndis_response *r =
855 g_malloc0(sizeof(struct rndis_response) + length);
856
857 QTAILQ_INSERT_TAIL(&s->rndis_resp, r, entries);
858 r->length = length;
859
860 return &r->buf[0];
861 }
862
863 static void rndis_clear_responsequeue(USBNetState *s)
864 {
865 struct rndis_response *r;
866
867 while ((r = s->rndis_resp.tqh_first)) {
868 QTAILQ_REMOVE(&s->rndis_resp, r, entries);
869 g_free(r);
870 }
871 }
872
873 static int rndis_init_response(USBNetState *s, rndis_init_msg_type *buf)
874 {
875 rndis_init_cmplt_type *resp =
876 rndis_queue_response(s, sizeof(rndis_init_cmplt_type));
877
878 if (!resp)
879 return USB_RET_STALL;
880
881 resp->MessageType = cpu_to_le32(RNDIS_INITIALIZE_CMPLT);
882 resp->MessageLength = cpu_to_le32(sizeof(rndis_init_cmplt_type));
883 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
884 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
885 resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION);
886 resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION);
887 resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS);
888 resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3);
889 resp->MaxPacketsPerTransfer = cpu_to_le32(1);
890 resp->MaxTransferSize = cpu_to_le32(ETH_FRAME_LEN +
891 sizeof(struct rndis_packet_msg_type) + 22);
892 resp->PacketAlignmentFactor = cpu_to_le32(0);
893 resp->AFListOffset = cpu_to_le32(0);
894 resp->AFListSize = cpu_to_le32(0);
895 return 0;
896 }
897
898 static int rndis_query_response(USBNetState *s,
899 rndis_query_msg_type *buf, unsigned int length)
900 {
901 rndis_query_cmplt_type *resp;
902 /* oid_supported_list is the largest data reply */
903 uint8_t infobuf[sizeof(oid_supported_list)];
904 uint32_t bufoffs, buflen;
905 int infobuflen;
906 unsigned int resplen;
907
908 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
909 buflen = le32_to_cpu(buf->InformationBufferLength);
910 if (bufoffs + buflen > length)
911 return USB_RET_STALL;
912
913 infobuflen = ndis_query(s, le32_to_cpu(buf->OID),
914 bufoffs + (uint8_t *) buf, buflen, infobuf,
915 sizeof(infobuf));
916 resplen = sizeof(rndis_query_cmplt_type) +
917 ((infobuflen < 0) ? 0 : infobuflen);
918 resp = rndis_queue_response(s, resplen);
919 if (!resp)
920 return USB_RET_STALL;
921
922 resp->MessageType = cpu_to_le32(RNDIS_QUERY_CMPLT);
923 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
924 resp->MessageLength = cpu_to_le32(resplen);
925
926 if (infobuflen < 0) {
927 /* OID not supported */
928 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
929 resp->InformationBufferLength = cpu_to_le32(0);
930 resp->InformationBufferOffset = cpu_to_le32(0);
931 return 0;
932 }
933
934 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
935 resp->InformationBufferOffset =
936 cpu_to_le32(infobuflen ? sizeof(rndis_query_cmplt_type) - 8 : 0);
937 resp->InformationBufferLength = cpu_to_le32(infobuflen);
938 memcpy(resp + 1, infobuf, infobuflen);
939
940 return 0;
941 }
942
943 static int rndis_set_response(USBNetState *s,
944 rndis_set_msg_type *buf, unsigned int length)
945 {
946 rndis_set_cmplt_type *resp =
947 rndis_queue_response(s, sizeof(rndis_set_cmplt_type));
948 uint32_t bufoffs, buflen;
949 int ret;
950
951 if (!resp)
952 return USB_RET_STALL;
953
954 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
955 buflen = le32_to_cpu(buf->InformationBufferLength);
956 if (bufoffs + buflen > length)
957 return USB_RET_STALL;
958
959 ret = ndis_set(s, le32_to_cpu(buf->OID),
960 bufoffs + (uint8_t *) buf, buflen);
961 resp->MessageType = cpu_to_le32(RNDIS_SET_CMPLT);
962 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
963 resp->MessageLength = cpu_to_le32(sizeof(rndis_set_cmplt_type));
964 if (ret < 0) {
965 /* OID not supported */
966 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
967 return 0;
968 }
969 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
970
971 return 0;
972 }
973
974 static int rndis_reset_response(USBNetState *s, rndis_reset_msg_type *buf)
975 {
976 rndis_reset_cmplt_type *resp =
977 rndis_queue_response(s, sizeof(rndis_reset_cmplt_type));
978
979 if (!resp)
980 return USB_RET_STALL;
981
982 resp->MessageType = cpu_to_le32(RNDIS_RESET_CMPLT);
983 resp->MessageLength = cpu_to_le32(sizeof(rndis_reset_cmplt_type));
984 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
985 resp->AddressingReset = cpu_to_le32(1); /* reset information */
986
987 return 0;
988 }
989
990 static int rndis_keepalive_response(USBNetState *s,
991 rndis_keepalive_msg_type *buf)
992 {
993 rndis_keepalive_cmplt_type *resp =
994 rndis_queue_response(s, sizeof(rndis_keepalive_cmplt_type));
995
996 if (!resp)
997 return USB_RET_STALL;
998
999 resp->MessageType = cpu_to_le32(RNDIS_KEEPALIVE_CMPLT);
1000 resp->MessageLength = cpu_to_le32(sizeof(rndis_keepalive_cmplt_type));
1001 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
1002 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
1003
1004 return 0;
1005 }
1006
1007 static int rndis_parse(USBNetState *s, uint8_t *data, int length)
1008 {
1009 uint32_t msg_type;
1010 le32 *tmp = (le32 *) data;
1011
1012 msg_type = le32_to_cpup(tmp);
1013
1014 switch (msg_type) {
1015 case RNDIS_INITIALIZE_MSG:
1016 s->rndis_state = RNDIS_INITIALIZED;
1017 return rndis_init_response(s, (rndis_init_msg_type *) data);
1018
1019 case RNDIS_HALT_MSG:
1020 s->rndis_state = RNDIS_UNINITIALIZED;
1021 return 0;
1022
1023 case RNDIS_QUERY_MSG:
1024 return rndis_query_response(s, (rndis_query_msg_type *) data, length);
1025
1026 case RNDIS_SET_MSG:
1027 return rndis_set_response(s, (rndis_set_msg_type *) data, length);
1028
1029 case RNDIS_RESET_MSG:
1030 rndis_clear_responsequeue(s);
1031 s->out_ptr = s->in_ptr = s->in_len = 0;
1032 return rndis_reset_response(s, (rndis_reset_msg_type *) data);
1033
1034 case RNDIS_KEEPALIVE_MSG:
1035 /* For USB: host does this every 5 seconds */
1036 return rndis_keepalive_response(s, (rndis_keepalive_msg_type *) data);
1037 }
1038
1039 return USB_RET_STALL;
1040 }
1041
1042 static void usb_net_handle_reset(USBDevice *dev)
1043 {
1044 }
1045
1046 static int usb_net_handle_control(USBDevice *dev, USBPacket *p,
1047 int request, int value, int index, int length, uint8_t *data)
1048 {
1049 USBNetState *s = (USBNetState *) dev;
1050 int ret;
1051
1052 ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
1053 if (ret >= 0) {
1054 return ret;
1055 }
1056
1057 ret = 0;
1058 switch(request) {
1059 case ClassInterfaceOutRequest | USB_CDC_SEND_ENCAPSULATED_COMMAND:
1060 if (!is_rndis(s) || value || index != 0) {
1061 goto fail;
1062 }
1063 #ifdef TRAFFIC_DEBUG
1064 {
1065 unsigned int i;
1066 fprintf(stderr, "SEND_ENCAPSULATED_COMMAND:");
1067 for (i = 0; i < length; i++) {
1068 if (!(i & 15))
1069 fprintf(stderr, "\n%04x:", i);
1070 fprintf(stderr, " %02x", data[i]);
1071 }
1072 fprintf(stderr, "\n\n");
1073 }
1074 #endif
1075 ret = rndis_parse(s, data, length);
1076 break;
1077
1078 case ClassInterfaceRequest | USB_CDC_GET_ENCAPSULATED_RESPONSE:
1079 if (!is_rndis(s) || value || index != 0) {
1080 goto fail;
1081 }
1082 ret = rndis_get_response(s, data);
1083 if (!ret) {
1084 data[0] = 0;
1085 ret = 1;
1086 }
1087 #ifdef TRAFFIC_DEBUG
1088 {
1089 unsigned int i;
1090 fprintf(stderr, "GET_ENCAPSULATED_RESPONSE:");
1091 for (i = 0; i < ret; i++) {
1092 if (!(i & 15))
1093 fprintf(stderr, "\n%04x:", i);
1094 fprintf(stderr, " %02x", data[i]);
1095 }
1096 fprintf(stderr, "\n\n");
1097 }
1098 #endif
1099 break;
1100
1101 case DeviceRequest | USB_REQ_GET_INTERFACE:
1102 case InterfaceRequest | USB_REQ_GET_INTERFACE:
1103 data[0] = 0;
1104 ret = 1;
1105 break;
1106
1107 case DeviceOutRequest | USB_REQ_SET_INTERFACE:
1108 case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
1109 ret = 0;
1110 break;
1111
1112 default:
1113 fail:
1114 fprintf(stderr, "usbnet: failed control transaction: "
1115 "request 0x%x value 0x%x index 0x%x length 0x%x\n",
1116 request, value, index, length);
1117 ret = USB_RET_STALL;
1118 break;
1119 }
1120 return ret;
1121 }
1122
1123 static int usb_net_handle_statusin(USBNetState *s, USBPacket *p)
1124 {
1125 le32 buf[2];
1126 int ret = 8;
1127
1128 if (p->iov.size < 8) {
1129 return USB_RET_STALL;
1130 }
1131
1132 buf[0] = cpu_to_le32(1);
1133 buf[1] = cpu_to_le32(0);
1134 usb_packet_copy(p, buf, 8);
1135 if (!s->rndis_resp.tqh_first)
1136 ret = USB_RET_NAK;
1137
1138 #ifdef TRAFFIC_DEBUG
1139 fprintf(stderr, "usbnet: interrupt poll len %zu return %d",
1140 p->iov.size, ret);
1141 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", ret);
1142 #endif
1143
1144 return ret;
1145 }
1146
1147 static int usb_net_handle_datain(USBNetState *s, USBPacket *p)
1148 {
1149 int ret = USB_RET_NAK;
1150
1151 if (s->in_ptr > s->in_len) {
1152 s->in_ptr = s->in_len = 0;
1153 ret = USB_RET_NAK;
1154 return ret;
1155 }
1156 if (!s->in_len) {
1157 ret = USB_RET_NAK;
1158 return ret;
1159 }
1160 ret = s->in_len - s->in_ptr;
1161 if (ret > p->iov.size) {
1162 ret = p->iov.size;
1163 }
1164 usb_packet_copy(p, &s->in_buf[s->in_ptr], ret);
1165 s->in_ptr += ret;
1166 if (s->in_ptr >= s->in_len &&
1167 (is_rndis(s) || (s->in_len & (64 - 1)) || !ret)) {
1168 /* no short packet necessary */
1169 s->in_ptr = s->in_len = 0;
1170 }
1171
1172 #ifdef TRAFFIC_DEBUG
1173 fprintf(stderr, "usbnet: data in len %zu return %d", p->iov.size, ret);
1174 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", ret);
1175 #endif
1176
1177 return ret;
1178 }
1179
1180 static int usb_net_handle_dataout(USBNetState *s, USBPacket *p)
1181 {
1182 int ret = p->iov.size;
1183 int sz = sizeof(s->out_buf) - s->out_ptr;
1184 struct rndis_packet_msg_type *msg =
1185 (struct rndis_packet_msg_type *) s->out_buf;
1186 uint32_t len;
1187
1188 #ifdef TRAFFIC_DEBUG
1189 fprintf(stderr, "usbnet: data out len %zu\n", p->iov.size);
1190 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", p->iov.size);
1191 #endif
1192
1193 if (sz > ret)
1194 sz = ret;
1195 usb_packet_copy(p, &s->out_buf[s->out_ptr], sz);
1196 s->out_ptr += sz;
1197
1198 if (!is_rndis(s)) {
1199 if (ret < 64) {
1200 qemu_send_packet(&s->nic->nc, s->out_buf, s->out_ptr);
1201 s->out_ptr = 0;
1202 }
1203 return ret;
1204 }
1205 len = le32_to_cpu(msg->MessageLength);
1206 if (s->out_ptr < 8 || s->out_ptr < len)
1207 return ret;
1208 if (le32_to_cpu(msg->MessageType) == RNDIS_PACKET_MSG) {
1209 uint32_t offs = 8 + le32_to_cpu(msg->DataOffset);
1210 uint32_t size = le32_to_cpu(msg->DataLength);
1211 if (offs + size <= len)
1212 qemu_send_packet(&s->nic->nc, s->out_buf + offs, size);
1213 }
1214 s->out_ptr -= len;
1215 memmove(s->out_buf, &s->out_buf[len], s->out_ptr);
1216
1217 return ret;
1218 }
1219
1220 static int usb_net_handle_data(USBDevice *dev, USBPacket *p)
1221 {
1222 USBNetState *s = (USBNetState *) dev;
1223 int ret = 0;
1224
1225 switch(p->pid) {
1226 case USB_TOKEN_IN:
1227 switch (p->devep) {
1228 case 1:
1229 ret = usb_net_handle_statusin(s, p);
1230 break;
1231
1232 case 2:
1233 ret = usb_net_handle_datain(s, p);
1234 break;
1235
1236 default:
1237 goto fail;
1238 }
1239 break;
1240
1241 case USB_TOKEN_OUT:
1242 switch (p->devep) {
1243 case 2:
1244 ret = usb_net_handle_dataout(s, p);
1245 break;
1246
1247 default:
1248 goto fail;
1249 }
1250 break;
1251
1252 default:
1253 fail:
1254 ret = USB_RET_STALL;
1255 break;
1256 }
1257 if (ret == USB_RET_STALL)
1258 fprintf(stderr, "usbnet: failed data transaction: "
1259 "pid 0x%x ep 0x%x len 0x%zx\n",
1260 p->pid, p->devep, p->iov.size);
1261 return ret;
1262 }
1263
1264 static ssize_t usbnet_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
1265 {
1266 USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
1267 struct rndis_packet_msg_type *msg;
1268
1269 if (is_rndis(s)) {
1270 msg = (struct rndis_packet_msg_type *) s->in_buf;
1271 if (!s->rndis_state == RNDIS_DATA_INITIALIZED)
1272 return -1;
1273 if (size + sizeof(struct rndis_packet_msg_type) > sizeof(s->in_buf))
1274 return -1;
1275
1276 memset(msg, 0, sizeof(struct rndis_packet_msg_type));
1277 msg->MessageType = cpu_to_le32(RNDIS_PACKET_MSG);
1278 msg->MessageLength = cpu_to_le32(size + sizeof(struct rndis_packet_msg_type));
1279 msg->DataOffset = cpu_to_le32(sizeof(struct rndis_packet_msg_type) - 8);
1280 msg->DataLength = cpu_to_le32(size);
1281 /* msg->OOBDataOffset;
1282 * msg->OOBDataLength;
1283 * msg->NumOOBDataElements;
1284 * msg->PerPacketInfoOffset;
1285 * msg->PerPacketInfoLength;
1286 * msg->VcHandle;
1287 * msg->Reserved;
1288 */
1289 memcpy(msg + 1, buf, size);
1290 s->in_len = size + sizeof(struct rndis_packet_msg_type);
1291 } else {
1292 if (size > sizeof(s->in_buf))
1293 return -1;
1294 memcpy(s->in_buf, buf, size);
1295 s->in_len = size;
1296 }
1297 s->in_ptr = 0;
1298 return size;
1299 }
1300
1301 static int usbnet_can_receive(VLANClientState *nc)
1302 {
1303 USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
1304
1305 if (is_rndis(s) && !s->rndis_state == RNDIS_DATA_INITIALIZED) {
1306 return 1;
1307 }
1308
1309 return !s->in_len;
1310 }
1311
1312 static void usbnet_cleanup(VLANClientState *nc)
1313 {
1314 USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
1315
1316 s->nic = NULL;
1317 }
1318
1319 static void usb_net_handle_destroy(USBDevice *dev)
1320 {
1321 USBNetState *s = (USBNetState *) dev;
1322
1323 /* TODO: remove the nd_table[] entry */
1324 rndis_clear_responsequeue(s);
1325 qemu_del_vlan_client(&s->nic->nc);
1326 }
1327
1328 static NetClientInfo net_usbnet_info = {
1329 .type = NET_CLIENT_TYPE_NIC,
1330 .size = sizeof(NICState),
1331 .can_receive = usbnet_can_receive,
1332 .receive = usbnet_receive,
1333 .cleanup = usbnet_cleanup,
1334 };
1335
1336 static int usb_net_initfn(USBDevice *dev)
1337 {
1338 USBNetState *s = DO_UPCAST(USBNetState, dev, dev);
1339
1340 usb_desc_init(dev);
1341
1342 s->rndis_state = RNDIS_UNINITIALIZED;
1343 QTAILQ_INIT(&s->rndis_resp);
1344
1345 s->medium = 0; /* NDIS_MEDIUM_802_3 */
1346 s->speed = 1000000; /* 100MBps, in 100Bps units */
1347 s->media_state = 0; /* NDIS_MEDIA_STATE_CONNECTED */;
1348 s->filter = 0;
1349 s->vendorid = 0x1234;
1350
1351 qemu_macaddr_default_if_unset(&s->conf.macaddr);
1352 s->nic = qemu_new_nic(&net_usbnet_info, &s->conf,
1353 s->dev.qdev.info->name, s->dev.qdev.id, s);
1354 qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
1355 snprintf(s->usbstring_mac, sizeof(s->usbstring_mac),
1356 "%02x%02x%02x%02x%02x%02x",
1357 0x40,
1358 s->conf.macaddr.a[1],
1359 s->conf.macaddr.a[2],
1360 s->conf.macaddr.a[3],
1361 s->conf.macaddr.a[4],
1362 s->conf.macaddr.a[5]);
1363 usb_desc_set_string(dev, STRING_ETHADDR, s->usbstring_mac);
1364
1365 add_boot_device_path(s->conf.bootindex, &dev->qdev, "/ethernet@0");
1366 return 0;
1367 }
1368
1369 static USBDevice *usb_net_init(const char *cmdline)
1370 {
1371 USBDevice *dev;
1372 QemuOpts *opts;
1373 int idx;
1374
1375 opts = qemu_opts_parse(qemu_find_opts("net"), cmdline, 0);
1376 if (!opts) {
1377 return NULL;
1378 }
1379 qemu_opt_set(opts, "type", "nic");
1380 qemu_opt_set(opts, "model", "usb");
1381
1382 idx = net_client_init(NULL, opts, 0);
1383 if (idx == -1) {
1384 return NULL;
1385 }
1386
1387 dev = usb_create(NULL /* FIXME */, "usb-net");
1388 if (!dev) {
1389 return NULL;
1390 }
1391 qdev_set_nic_properties(&dev->qdev, &nd_table[idx]);
1392 qdev_init_nofail(&dev->qdev);
1393 return dev;
1394 }
1395
1396 static const VMStateDescription vmstate_usb_net = {
1397 .name = "usb-net",
1398 .unmigratable = 1,
1399 };
1400
1401 static struct USBDeviceInfo net_info = {
1402 .product_desc = "QEMU USB Network Interface",
1403 .qdev.name = "usb-net",
1404 .qdev.fw_name = "network",
1405 .qdev.size = sizeof(USBNetState),
1406 .qdev.vmsd = &vmstate_usb_net,
1407 .usb_desc = &desc_net,
1408 .init = usb_net_initfn,
1409 .handle_packet = usb_generic_handle_packet,
1410 .handle_reset = usb_net_handle_reset,
1411 .handle_control = usb_net_handle_control,
1412 .handle_data = usb_net_handle_data,
1413 .handle_destroy = usb_net_handle_destroy,
1414 .usbdevice_name = "net",
1415 .usbdevice_init = usb_net_init,
1416 .qdev.props = (Property[]) {
1417 DEFINE_NIC_PROPERTIES(USBNetState, conf),
1418 DEFINE_PROP_END_OF_LIST(),
1419 }
1420 };
1421
1422 static void usb_net_register_devices(void)
1423 {
1424 usb_qdev_register(&net_info);
1425 }
1426 device_init(usb_net_register_devices)
various patches