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/osdep.h" 27 #include "qapi/error.h" 28 #include "qemu-common.h" 29 #include "hw/usb.h" 30 #include "hw/usb/desc.h" 31 #include "net/net.h" 32 #include "qemu/error-report.h" 33 #include "qemu/queue.h" 34 #include "qemu/config-file.h" 35 #include "sysemu/sysemu.h" 36 #include "qemu/iov.h" 37 #include "qemu/cutils.h" 38 39 /*#define TRAFFIC_DEBUG*/ 40 /* Thanks to NetChip Technologies for donating this product ID. 41 * It's for devices with only CDC Ethernet configurations. 42 */ 43 #define CDC_VENDOR_NUM 0x0525 /* NetChip */ 44 #define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */ 45 /* For hardware that can talk RNDIS and either of the above protocols, 46 * use this ID ... the windows INF files will know it. 47 */ 48 #define RNDIS_VENDOR_NUM 0x0525 /* NetChip */ 49 #define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */ 50 51 enum usbstring_idx { 52 STRING_MANUFACTURER = 1, 53 STRING_PRODUCT, 54 STRING_ETHADDR, 55 STRING_DATA, 56 STRING_CONTROL, 57 STRING_RNDIS_CONTROL, 58 STRING_CDC, 59 STRING_SUBSET, 60 STRING_RNDIS, 61 STRING_SERIALNUMBER, 62 }; 63 64 #define DEV_CONFIG_VALUE 1 /* CDC or a subset */ 65 #define DEV_RNDIS_CONFIG_VALUE 2 /* RNDIS; optional */ 66 67 #define USB_CDC_SUBCLASS_ACM 0x02 68 #define USB_CDC_SUBCLASS_ETHERNET 0x06 69 70 #define USB_CDC_PROTO_NONE 0 71 #define USB_CDC_ACM_PROTO_VENDOR 0xff 72 73 #define USB_CDC_HEADER_TYPE 0x00 /* header_desc */ 74 #define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */ 75 #define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */ 76 #define USB_CDC_UNION_TYPE 0x06 /* union_desc */ 77 #define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */ 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 static const USBDescStrings usb_net_stringtable = { 97 [STRING_MANUFACTURER] = "QEMU", 98 [STRING_PRODUCT] = "RNDIS/QEMU USB Network Device", 99 [STRING_ETHADDR] = "400102030405", 100 [STRING_DATA] = "QEMU USB Net Data Interface", 101 [STRING_CONTROL] = "QEMU USB Net Control Interface", 102 [STRING_RNDIS_CONTROL] = "QEMU USB Net RNDIS Control Interface", 103 [STRING_CDC] = "QEMU USB Net CDC", 104 [STRING_SUBSET] = "QEMU USB Net Subset", 105 [STRING_RNDIS] = "QEMU USB Net RNDIS", 106 [STRING_SERIALNUMBER] = "1", 107 }; 108 109 static const USBDescIface desc_iface_rndis[] = { 110 { 111 /* RNDIS Control Interface */ 112 .bInterfaceNumber = 0, 113 .bNumEndpoints = 1, 114 .bInterfaceClass = USB_CLASS_COMM, 115 .bInterfaceSubClass = USB_CDC_SUBCLASS_ACM, 116 .bInterfaceProtocol = USB_CDC_ACM_PROTO_VENDOR, 117 .iInterface = STRING_RNDIS_CONTROL, 118 .ndesc = 4, 119 .descs = (USBDescOther[]) { 120 { 121 /* Header Descriptor */ 122 .data = (uint8_t[]) { 123 0x05, /* u8 bLength */ 124 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 125 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */ 126 0x10, 0x01, /* le16 bcdCDC */ 127 }, 128 },{ 129 /* Call Management Descriptor */ 130 .data = (uint8_t[]) { 131 0x05, /* u8 bLength */ 132 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 133 USB_CDC_CALL_MANAGEMENT_TYPE, /* u8 bDescriptorSubType */ 134 0x00, /* u8 bmCapabilities */ 135 0x01, /* u8 bDataInterface */ 136 }, 137 },{ 138 /* ACM Descriptor */ 139 .data = (uint8_t[]) { 140 0x04, /* u8 bLength */ 141 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 142 USB_CDC_ACM_TYPE, /* u8 bDescriptorSubType */ 143 0x00, /* u8 bmCapabilities */ 144 }, 145 },{ 146 /* Union Descriptor */ 147 .data = (uint8_t[]) { 148 0x05, /* u8 bLength */ 149 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 150 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */ 151 0x00, /* u8 bMasterInterface0 */ 152 0x01, /* u8 bSlaveInterface0 */ 153 }, 154 }, 155 }, 156 .eps = (USBDescEndpoint[]) { 157 { 158 .bEndpointAddress = USB_DIR_IN | 0x01, 159 .bmAttributes = USB_ENDPOINT_XFER_INT, 160 .wMaxPacketSize = STATUS_BYTECOUNT, 161 .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC, 162 }, 163 } 164 },{ 165 /* RNDIS Data Interface */ 166 .bInterfaceNumber = 1, 167 .bNumEndpoints = 2, 168 .bInterfaceClass = USB_CLASS_CDC_DATA, 169 .iInterface = STRING_DATA, 170 .eps = (USBDescEndpoint[]) { 171 { 172 .bEndpointAddress = USB_DIR_IN | 0x02, 173 .bmAttributes = USB_ENDPOINT_XFER_BULK, 174 .wMaxPacketSize = 0x40, 175 },{ 176 .bEndpointAddress = USB_DIR_OUT | 0x02, 177 .bmAttributes = USB_ENDPOINT_XFER_BULK, 178 .wMaxPacketSize = 0x40, 179 } 180 } 181 } 182 }; 183 184 static const USBDescIface desc_iface_cdc[] = { 185 { 186 /* CDC Control Interface */ 187 .bInterfaceNumber = 0, 188 .bNumEndpoints = 1, 189 .bInterfaceClass = USB_CLASS_COMM, 190 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, 191 .bInterfaceProtocol = USB_CDC_PROTO_NONE, 192 .iInterface = STRING_CONTROL, 193 .ndesc = 3, 194 .descs = (USBDescOther[]) { 195 { 196 /* Header Descriptor */ 197 .data = (uint8_t[]) { 198 0x05, /* u8 bLength */ 199 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 200 USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */ 201 0x10, 0x01, /* le16 bcdCDC */ 202 }, 203 },{ 204 /* Union Descriptor */ 205 .data = (uint8_t[]) { 206 0x05, /* u8 bLength */ 207 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 208 USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */ 209 0x00, /* u8 bMasterInterface0 */ 210 0x01, /* u8 bSlaveInterface0 */ 211 }, 212 },{ 213 /* Ethernet Descriptor */ 214 .data = (uint8_t[]) { 215 0x0d, /* u8 bLength */ 216 USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ 217 USB_CDC_ETHERNET_TYPE, /* u8 bDescriptorSubType */ 218 STRING_ETHADDR, /* u8 iMACAddress */ 219 0x00, 0x00, 0x00, 0x00, /* le32 bmEthernetStatistics */ 220 ETH_FRAME_LEN & 0xff, 221 ETH_FRAME_LEN >> 8, /* le16 wMaxSegmentSize */ 222 0x00, 0x00, /* le16 wNumberMCFilters */ 223 0x00, /* u8 bNumberPowerFilters */ 224 }, 225 }, 226 }, 227 .eps = (USBDescEndpoint[]) { 228 { 229 .bEndpointAddress = USB_DIR_IN | 0x01, 230 .bmAttributes = USB_ENDPOINT_XFER_INT, 231 .wMaxPacketSize = STATUS_BYTECOUNT, 232 .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC, 233 }, 234 } 235 },{ 236 /* CDC Data Interface (off) */ 237 .bInterfaceNumber = 1, 238 .bAlternateSetting = 0, 239 .bNumEndpoints = 0, 240 .bInterfaceClass = USB_CLASS_CDC_DATA, 241 },{ 242 /* CDC Data Interface */ 243 .bInterfaceNumber = 1, 244 .bAlternateSetting = 1, 245 .bNumEndpoints = 2, 246 .bInterfaceClass = USB_CLASS_CDC_DATA, 247 .iInterface = STRING_DATA, 248 .eps = (USBDescEndpoint[]) { 249 { 250 .bEndpointAddress = USB_DIR_IN | 0x02, 251 .bmAttributes = USB_ENDPOINT_XFER_BULK, 252 .wMaxPacketSize = 0x40, 253 },{ 254 .bEndpointAddress = USB_DIR_OUT | 0x02, 255 .bmAttributes = USB_ENDPOINT_XFER_BULK, 256 .wMaxPacketSize = 0x40, 257 } 258 } 259 } 260 }; 261 262 static const USBDescDevice desc_device_net = { 263 .bcdUSB = 0x0200, 264 .bDeviceClass = USB_CLASS_COMM, 265 .bMaxPacketSize0 = 0x40, 266 .bNumConfigurations = 2, 267 .confs = (USBDescConfig[]) { 268 { 269 .bNumInterfaces = 2, 270 .bConfigurationValue = DEV_RNDIS_CONFIG_VALUE, 271 .iConfiguration = STRING_RNDIS, 272 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, 273 .bMaxPower = 0x32, 274 .nif = ARRAY_SIZE(desc_iface_rndis), 275 .ifs = desc_iface_rndis, 276 },{ 277 .bNumInterfaces = 2, 278 .bConfigurationValue = DEV_CONFIG_VALUE, 279 .iConfiguration = STRING_CDC, 280 .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, 281 .bMaxPower = 0x32, 282 .nif = ARRAY_SIZE(desc_iface_cdc), 283 .ifs = desc_iface_cdc, 284 } 285 }, 286 }; 287 288 static const USBDesc desc_net = { 289 .id = { 290 .idVendor = RNDIS_VENDOR_NUM, 291 .idProduct = RNDIS_PRODUCT_NUM, 292 .bcdDevice = 0, 293 .iManufacturer = STRING_MANUFACTURER, 294 .iProduct = STRING_PRODUCT, 295 .iSerialNumber = STRING_SERIALNUMBER, 296 }, 297 .full = &desc_device_net, 298 .str = usb_net_stringtable, 299 }; 300 301 /* 302 * RNDIS Definitions - in theory not specific to USB. 303 */ 304 #define RNDIS_MAXIMUM_FRAME_SIZE 1518 305 #define RNDIS_MAX_TOTAL_SIZE 1558 306 307 /* Remote NDIS Versions */ 308 #define RNDIS_MAJOR_VERSION 1 309 #define RNDIS_MINOR_VERSION 0 310 311 /* Status Values */ 312 #define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */ 313 #define RNDIS_STATUS_FAILURE 0xc0000001U /* Unspecified error */ 314 #define RNDIS_STATUS_INVALID_DATA 0xc0010015U /* Invalid data */ 315 #define RNDIS_STATUS_NOT_SUPPORTED 0xc00000bbU /* Unsupported request */ 316 #define RNDIS_STATUS_MEDIA_CONNECT 0x4001000bU /* Device connected */ 317 #define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000cU /* Device disconnected */ 318 319 /* Message Set for Connectionless (802.3) Devices */ 320 enum { 321 RNDIS_PACKET_MSG = 1, 322 RNDIS_INITIALIZE_MSG = 2, /* Initialize device */ 323 RNDIS_HALT_MSG = 3, 324 RNDIS_QUERY_MSG = 4, 325 RNDIS_SET_MSG = 5, 326 RNDIS_RESET_MSG = 6, 327 RNDIS_INDICATE_STATUS_MSG = 7, 328 RNDIS_KEEPALIVE_MSG = 8, 329 }; 330 331 /* Message completion */ 332 enum { 333 RNDIS_INITIALIZE_CMPLT = 0x80000002U, 334 RNDIS_QUERY_CMPLT = 0x80000004U, 335 RNDIS_SET_CMPLT = 0x80000005U, 336 RNDIS_RESET_CMPLT = 0x80000006U, 337 RNDIS_KEEPALIVE_CMPLT = 0x80000008U, 338 }; 339 340 /* Device Flags */ 341 enum { 342 RNDIS_DF_CONNECTIONLESS = 1, 343 RNDIS_DF_CONNECTIONORIENTED = 2, 344 }; 345 346 #define RNDIS_MEDIUM_802_3 0x00000000U 347 348 /* from drivers/net/sk98lin/h/skgepnmi.h */ 349 #define OID_PNP_CAPABILITIES 0xfd010100 350 #define OID_PNP_SET_POWER 0xfd010101 351 #define OID_PNP_QUERY_POWER 0xfd010102 352 #define OID_PNP_ADD_WAKE_UP_PATTERN 0xfd010103 353 #define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xfd010104 354 #define OID_PNP_ENABLE_WAKE_UP 0xfd010106 355 356 typedef uint32_t le32; 357 358 typedef struct rndis_init_msg_type { 359 le32 MessageType; 360 le32 MessageLength; 361 le32 RequestID; 362 le32 MajorVersion; 363 le32 MinorVersion; 364 le32 MaxTransferSize; 365 } rndis_init_msg_type; 366 367 typedef struct rndis_init_cmplt_type { 368 le32 MessageType; 369 le32 MessageLength; 370 le32 RequestID; 371 le32 Status; 372 le32 MajorVersion; 373 le32 MinorVersion; 374 le32 DeviceFlags; 375 le32 Medium; 376 le32 MaxPacketsPerTransfer; 377 le32 MaxTransferSize; 378 le32 PacketAlignmentFactor; 379 le32 AFListOffset; 380 le32 AFListSize; 381 } rndis_init_cmplt_type; 382 383 typedef struct rndis_halt_msg_type { 384 le32 MessageType; 385 le32 MessageLength; 386 le32 RequestID; 387 } rndis_halt_msg_type; 388 389 typedef struct rndis_query_msg_type { 390 le32 MessageType; 391 le32 MessageLength; 392 le32 RequestID; 393 le32 OID; 394 le32 InformationBufferLength; 395 le32 InformationBufferOffset; 396 le32 DeviceVcHandle; 397 } rndis_query_msg_type; 398 399 typedef struct rndis_query_cmplt_type { 400 le32 MessageType; 401 le32 MessageLength; 402 le32 RequestID; 403 le32 Status; 404 le32 InformationBufferLength; 405 le32 InformationBufferOffset; 406 } rndis_query_cmplt_type; 407 408 typedef struct rndis_set_msg_type { 409 le32 MessageType; 410 le32 MessageLength; 411 le32 RequestID; 412 le32 OID; 413 le32 InformationBufferLength; 414 le32 InformationBufferOffset; 415 le32 DeviceVcHandle; 416 } rndis_set_msg_type; 417 418 typedef struct rndis_set_cmplt_type { 419 le32 MessageType; 420 le32 MessageLength; 421 le32 RequestID; 422 le32 Status; 423 } rndis_set_cmplt_type; 424 425 typedef struct rndis_reset_msg_type { 426 le32 MessageType; 427 le32 MessageLength; 428 le32 Reserved; 429 } rndis_reset_msg_type; 430 431 typedef struct rndis_reset_cmplt_type { 432 le32 MessageType; 433 le32 MessageLength; 434 le32 Status; 435 le32 AddressingReset; 436 } rndis_reset_cmplt_type; 437 438 typedef struct rndis_indicate_status_msg_type { 439 le32 MessageType; 440 le32 MessageLength; 441 le32 Status; 442 le32 StatusBufferLength; 443 le32 StatusBufferOffset; 444 } rndis_indicate_status_msg_type; 445 446 typedef struct rndis_keepalive_msg_type { 447 le32 MessageType; 448 le32 MessageLength; 449 le32 RequestID; 450 } rndis_keepalive_msg_type; 451 452 typedef struct rndis_keepalive_cmplt_type { 453 le32 MessageType; 454 le32 MessageLength; 455 le32 RequestID; 456 le32 Status; 457 } rndis_keepalive_cmplt_type; 458 459 struct rndis_packet_msg_type { 460 le32 MessageType; 461 le32 MessageLength; 462 le32 DataOffset; 463 le32 DataLength; 464 le32 OOBDataOffset; 465 le32 OOBDataLength; 466 le32 NumOOBDataElements; 467 le32 PerPacketInfoOffset; 468 le32 PerPacketInfoLength; 469 le32 VcHandle; 470 le32 Reserved; 471 }; 472 473 struct rndis_config_parameter { 474 le32 ParameterNameOffset; 475 le32 ParameterNameLength; 476 le32 ParameterType; 477 le32 ParameterValueOffset; 478 le32 ParameterValueLength; 479 }; 480 481 /* implementation specific */ 482 enum rndis_state 483 { 484 RNDIS_UNINITIALIZED, 485 RNDIS_INITIALIZED, 486 RNDIS_DATA_INITIALIZED, 487 }; 488 489 /* from ndis.h */ 490 enum ndis_oid { 491 /* Required Object IDs (OIDs) */ 492 OID_GEN_SUPPORTED_LIST = 0x00010101, 493 OID_GEN_HARDWARE_STATUS = 0x00010102, 494 OID_GEN_MEDIA_SUPPORTED = 0x00010103, 495 OID_GEN_MEDIA_IN_USE = 0x00010104, 496 OID_GEN_MAXIMUM_LOOKAHEAD = 0x00010105, 497 OID_GEN_MAXIMUM_FRAME_SIZE = 0x00010106, 498 OID_GEN_LINK_SPEED = 0x00010107, 499 OID_GEN_TRANSMIT_BUFFER_SPACE = 0x00010108, 500 OID_GEN_RECEIVE_BUFFER_SPACE = 0x00010109, 501 OID_GEN_TRANSMIT_BLOCK_SIZE = 0x0001010a, 502 OID_GEN_RECEIVE_BLOCK_SIZE = 0x0001010b, 503 OID_GEN_VENDOR_ID = 0x0001010c, 504 OID_GEN_VENDOR_DESCRIPTION = 0x0001010d, 505 OID_GEN_CURRENT_PACKET_FILTER = 0x0001010e, 506 OID_GEN_CURRENT_LOOKAHEAD = 0x0001010f, 507 OID_GEN_DRIVER_VERSION = 0x00010110, 508 OID_GEN_MAXIMUM_TOTAL_SIZE = 0x00010111, 509 OID_GEN_PROTOCOL_OPTIONS = 0x00010112, 510 OID_GEN_MAC_OPTIONS = 0x00010113, 511 OID_GEN_MEDIA_CONNECT_STATUS = 0x00010114, 512 OID_GEN_MAXIMUM_SEND_PACKETS = 0x00010115, 513 OID_GEN_VENDOR_DRIVER_VERSION = 0x00010116, 514 OID_GEN_SUPPORTED_GUIDS = 0x00010117, 515 OID_GEN_NETWORK_LAYER_ADDRESSES = 0x00010118, 516 OID_GEN_TRANSPORT_HEADER_OFFSET = 0x00010119, 517 OID_GEN_MACHINE_NAME = 0x0001021a, 518 OID_GEN_RNDIS_CONFIG_PARAMETER = 0x0001021b, 519 OID_GEN_VLAN_ID = 0x0001021c, 520 521 /* Optional OIDs */ 522 OID_GEN_MEDIA_CAPABILITIES = 0x00010201, 523 OID_GEN_PHYSICAL_MEDIUM = 0x00010202, 524 525 /* Required statistics OIDs */ 526 OID_GEN_XMIT_OK = 0x00020101, 527 OID_GEN_RCV_OK = 0x00020102, 528 OID_GEN_XMIT_ERROR = 0x00020103, 529 OID_GEN_RCV_ERROR = 0x00020104, 530 OID_GEN_RCV_NO_BUFFER = 0x00020105, 531 532 /* Optional statistics OIDs */ 533 OID_GEN_DIRECTED_BYTES_XMIT = 0x00020201, 534 OID_GEN_DIRECTED_FRAMES_XMIT = 0x00020202, 535 OID_GEN_MULTICAST_BYTES_XMIT = 0x00020203, 536 OID_GEN_MULTICAST_FRAMES_XMIT = 0x00020204, 537 OID_GEN_BROADCAST_BYTES_XMIT = 0x00020205, 538 OID_GEN_BROADCAST_FRAMES_XMIT = 0x00020206, 539 OID_GEN_DIRECTED_BYTES_RCV = 0x00020207, 540 OID_GEN_DIRECTED_FRAMES_RCV = 0x00020208, 541 OID_GEN_MULTICAST_BYTES_RCV = 0x00020209, 542 OID_GEN_MULTICAST_FRAMES_RCV = 0x0002020a, 543 OID_GEN_BROADCAST_BYTES_RCV = 0x0002020b, 544 OID_GEN_BROADCAST_FRAMES_RCV = 0x0002020c, 545 OID_GEN_RCV_CRC_ERROR = 0x0002020d, 546 OID_GEN_TRANSMIT_QUEUE_LENGTH = 0x0002020e, 547 OID_GEN_GET_TIME_CAPS = 0x0002020f, 548 OID_GEN_GET_NETCARD_TIME = 0x00020210, 549 OID_GEN_NETCARD_LOAD = 0x00020211, 550 OID_GEN_DEVICE_PROFILE = 0x00020212, 551 OID_GEN_INIT_TIME_MS = 0x00020213, 552 OID_GEN_RESET_COUNTS = 0x00020214, 553 OID_GEN_MEDIA_SENSE_COUNTS = 0x00020215, 554 OID_GEN_FRIENDLY_NAME = 0x00020216, 555 OID_GEN_MINIPORT_INFO = 0x00020217, 556 OID_GEN_RESET_VERIFY_PARAMETERS = 0x00020218, 557 558 /* IEEE 802.3 (Ethernet) OIDs */ 559 OID_802_3_PERMANENT_ADDRESS = 0x01010101, 560 OID_802_3_CURRENT_ADDRESS = 0x01010102, 561 OID_802_3_MULTICAST_LIST = 0x01010103, 562 OID_802_3_MAXIMUM_LIST_SIZE = 0x01010104, 563 OID_802_3_MAC_OPTIONS = 0x01010105, 564 OID_802_3_RCV_ERROR_ALIGNMENT = 0x01020101, 565 OID_802_3_XMIT_ONE_COLLISION = 0x01020102, 566 OID_802_3_XMIT_MORE_COLLISIONS = 0x01020103, 567 OID_802_3_XMIT_DEFERRED = 0x01020201, 568 OID_802_3_XMIT_MAX_COLLISIONS = 0x01020202, 569 OID_802_3_RCV_OVERRUN = 0x01020203, 570 OID_802_3_XMIT_UNDERRUN = 0x01020204, 571 OID_802_3_XMIT_HEARTBEAT_FAILURE = 0x01020205, 572 OID_802_3_XMIT_TIMES_CRS_LOST = 0x01020206, 573 OID_802_3_XMIT_LATE_COLLISIONS = 0x01020207, 574 }; 575 576 static const uint32_t oid_supported_list[] = 577 { 578 /* the general stuff */ 579 OID_GEN_SUPPORTED_LIST, 580 OID_GEN_HARDWARE_STATUS, 581 OID_GEN_MEDIA_SUPPORTED, 582 OID_GEN_MEDIA_IN_USE, 583 OID_GEN_MAXIMUM_FRAME_SIZE, 584 OID_GEN_LINK_SPEED, 585 OID_GEN_TRANSMIT_BLOCK_SIZE, 586 OID_GEN_RECEIVE_BLOCK_SIZE, 587 OID_GEN_VENDOR_ID, 588 OID_GEN_VENDOR_DESCRIPTION, 589 OID_GEN_VENDOR_DRIVER_VERSION, 590 OID_GEN_CURRENT_PACKET_FILTER, 591 OID_GEN_MAXIMUM_TOTAL_SIZE, 592 OID_GEN_MEDIA_CONNECT_STATUS, 593 OID_GEN_PHYSICAL_MEDIUM, 594 595 /* the statistical stuff */ 596 OID_GEN_XMIT_OK, 597 OID_GEN_RCV_OK, 598 OID_GEN_XMIT_ERROR, 599 OID_GEN_RCV_ERROR, 600 OID_GEN_RCV_NO_BUFFER, 601 602 /* IEEE 802.3 */ 603 /* the general stuff */ 604 OID_802_3_PERMANENT_ADDRESS, 605 OID_802_3_CURRENT_ADDRESS, 606 OID_802_3_MULTICAST_LIST, 607 OID_802_3_MAC_OPTIONS, 608 OID_802_3_MAXIMUM_LIST_SIZE, 609 610 /* the statistical stuff */ 611 OID_802_3_RCV_ERROR_ALIGNMENT, 612 OID_802_3_XMIT_ONE_COLLISION, 613 OID_802_3_XMIT_MORE_COLLISIONS, 614 }; 615 616 #define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA (1 << 0) 617 #define NDIS_MAC_OPTION_RECEIVE_SERIALIZED (1 << 1) 618 #define NDIS_MAC_OPTION_TRANSFERS_NOT_PEND (1 << 2) 619 #define NDIS_MAC_OPTION_NO_LOOPBACK (1 << 3) 620 #define NDIS_MAC_OPTION_FULL_DUPLEX (1 << 4) 621 #define NDIS_MAC_OPTION_EOTX_INDICATION (1 << 5) 622 #define NDIS_MAC_OPTION_8021P_PRIORITY (1 << 6) 623 624 struct rndis_response { 625 QTAILQ_ENTRY(rndis_response) entries; 626 uint32_t length; 627 uint8_t buf[0]; 628 }; 629 630 typedef struct USBNetState { 631 USBDevice dev; 632 633 enum rndis_state rndis_state; 634 uint32_t medium; 635 uint32_t speed; 636 uint32_t media_state; 637 uint16_t filter; 638 uint32_t vendorid; 639 640 unsigned int out_ptr; 641 uint8_t out_buf[2048]; 642 643 unsigned int in_ptr, in_len; 644 uint8_t in_buf[2048]; 645 646 USBEndpoint *intr; 647 648 char usbstring_mac[13]; 649 NICState *nic; 650 NICConf conf; 651 QTAILQ_HEAD(rndis_resp_head, rndis_response) rndis_resp; 652 } USBNetState; 653 654 #define TYPE_USB_NET "usb-net" 655 #define USB_NET(obj) OBJECT_CHECK(USBNetState, (obj), TYPE_USB_NET) 656 657 static int is_rndis(USBNetState *s) 658 { 659 return s->dev.config ? 660 s->dev.config->bConfigurationValue == DEV_RNDIS_CONFIG_VALUE : 0; 661 } 662 663 static int ndis_query(USBNetState *s, uint32_t oid, 664 uint8_t *inbuf, unsigned int inlen, uint8_t *outbuf, 665 size_t outlen) 666 { 667 unsigned int i; 668 669 switch (oid) { 670 /* general oids (table 4-1) */ 671 /* mandatory */ 672 case OID_GEN_SUPPORTED_LIST: 673 for (i = 0; i < ARRAY_SIZE(oid_supported_list); i++) { 674 stl_le_p(outbuf + (i * sizeof(le32)), oid_supported_list[i]); 675 } 676 return sizeof(oid_supported_list); 677 678 /* mandatory */ 679 case OID_GEN_HARDWARE_STATUS: 680 stl_le_p(outbuf, 0); 681 return sizeof(le32); 682 683 /* mandatory */ 684 case OID_GEN_MEDIA_SUPPORTED: 685 stl_le_p(outbuf, s->medium); 686 return sizeof(le32); 687 688 /* mandatory */ 689 case OID_GEN_MEDIA_IN_USE: 690 stl_le_p(outbuf, s->medium); 691 return sizeof(le32); 692 693 /* mandatory */ 694 case OID_GEN_MAXIMUM_FRAME_SIZE: 695 stl_le_p(outbuf, ETH_FRAME_LEN); 696 return sizeof(le32); 697 698 /* mandatory */ 699 case OID_GEN_LINK_SPEED: 700 stl_le_p(outbuf, s->speed); 701 return sizeof(le32); 702 703 /* mandatory */ 704 case OID_GEN_TRANSMIT_BLOCK_SIZE: 705 stl_le_p(outbuf, ETH_FRAME_LEN); 706 return sizeof(le32); 707 708 /* mandatory */ 709 case OID_GEN_RECEIVE_BLOCK_SIZE: 710 stl_le_p(outbuf, ETH_FRAME_LEN); 711 return sizeof(le32); 712 713 /* mandatory */ 714 case OID_GEN_VENDOR_ID: 715 stl_le_p(outbuf, s->vendorid); 716 return sizeof(le32); 717 718 /* mandatory */ 719 case OID_GEN_VENDOR_DESCRIPTION: 720 pstrcpy((char *)outbuf, outlen, "QEMU USB RNDIS Net"); 721 return strlen((char *)outbuf) + 1; 722 723 case OID_GEN_VENDOR_DRIVER_VERSION: 724 stl_le_p(outbuf, 1); 725 return sizeof(le32); 726 727 /* mandatory */ 728 case OID_GEN_CURRENT_PACKET_FILTER: 729 stl_le_p(outbuf, s->filter); 730 return sizeof(le32); 731 732 /* mandatory */ 733 case OID_GEN_MAXIMUM_TOTAL_SIZE: 734 stl_le_p(outbuf, RNDIS_MAX_TOTAL_SIZE); 735 return sizeof(le32); 736 737 /* mandatory */ 738 case OID_GEN_MEDIA_CONNECT_STATUS: 739 stl_le_p(outbuf, s->media_state); 740 return sizeof(le32); 741 742 case OID_GEN_PHYSICAL_MEDIUM: 743 stl_le_p(outbuf, 0); 744 return sizeof(le32); 745 746 case OID_GEN_MAC_OPTIONS: 747 stl_le_p(outbuf, NDIS_MAC_OPTION_RECEIVE_SERIALIZED | 748 NDIS_MAC_OPTION_FULL_DUPLEX); 749 return sizeof(le32); 750 751 /* statistics OIDs (table 4-2) */ 752 /* mandatory */ 753 case OID_GEN_XMIT_OK: 754 stl_le_p(outbuf, 0); 755 return sizeof(le32); 756 757 /* mandatory */ 758 case OID_GEN_RCV_OK: 759 stl_le_p(outbuf, 0); 760 return sizeof(le32); 761 762 /* mandatory */ 763 case OID_GEN_XMIT_ERROR: 764 stl_le_p(outbuf, 0); 765 return sizeof(le32); 766 767 /* mandatory */ 768 case OID_GEN_RCV_ERROR: 769 stl_le_p(outbuf, 0); 770 return sizeof(le32); 771 772 /* mandatory */ 773 case OID_GEN_RCV_NO_BUFFER: 774 stl_le_p(outbuf, 0); 775 return sizeof(le32); 776 777 /* ieee802.3 OIDs (table 4-3) */ 778 /* mandatory */ 779 case OID_802_3_PERMANENT_ADDRESS: 780 memcpy(outbuf, s->conf.macaddr.a, 6); 781 return 6; 782 783 /* mandatory */ 784 case OID_802_3_CURRENT_ADDRESS: 785 memcpy(outbuf, s->conf.macaddr.a, 6); 786 return 6; 787 788 /* mandatory */ 789 case OID_802_3_MULTICAST_LIST: 790 stl_le_p(outbuf, 0xe0000000); 791 return sizeof(le32); 792 793 /* mandatory */ 794 case OID_802_3_MAXIMUM_LIST_SIZE: 795 stl_le_p(outbuf, 1); 796 return sizeof(le32); 797 798 case OID_802_3_MAC_OPTIONS: 799 return 0; 800 801 /* ieee802.3 statistics OIDs (table 4-4) */ 802 /* mandatory */ 803 case OID_802_3_RCV_ERROR_ALIGNMENT: 804 stl_le_p(outbuf, 0); 805 return sizeof(le32); 806 807 /* mandatory */ 808 case OID_802_3_XMIT_ONE_COLLISION: 809 stl_le_p(outbuf, 0); 810 return sizeof(le32); 811 812 /* mandatory */ 813 case OID_802_3_XMIT_MORE_COLLISIONS: 814 stl_le_p(outbuf, 0); 815 return sizeof(le32); 816 817 default: 818 fprintf(stderr, "usbnet: unknown OID 0x%08x\n", oid); 819 return 0; 820 } 821 return -1; 822 } 823 824 static int ndis_set(USBNetState *s, uint32_t oid, 825 uint8_t *inbuf, unsigned int inlen) 826 { 827 switch (oid) { 828 case OID_GEN_CURRENT_PACKET_FILTER: 829 s->filter = ldl_le_p(inbuf); 830 if (s->filter) { 831 s->rndis_state = RNDIS_DATA_INITIALIZED; 832 } else { 833 s->rndis_state = RNDIS_INITIALIZED; 834 } 835 return 0; 836 837 case OID_802_3_MULTICAST_LIST: 838 return 0; 839 } 840 return -1; 841 } 842 843 static int rndis_get_response(USBNetState *s, uint8_t *buf) 844 { 845 int ret = 0; 846 struct rndis_response *r = s->rndis_resp.tqh_first; 847 848 if (!r) 849 return ret; 850 851 QTAILQ_REMOVE(&s->rndis_resp, r, entries); 852 ret = r->length; 853 memcpy(buf, r->buf, r->length); 854 g_free(r); 855 856 return ret; 857 } 858 859 static void *rndis_queue_response(USBNetState *s, unsigned int length) 860 { 861 struct rndis_response *r = 862 g_malloc0(sizeof(struct rndis_response) + length); 863 864 if (QTAILQ_EMPTY(&s->rndis_resp)) { 865 usb_wakeup(s->intr, 0); 866 } 867 868 QTAILQ_INSERT_TAIL(&s->rndis_resp, r, entries); 869 r->length = length; 870 871 return &r->buf[0]; 872 } 873 874 static void rndis_clear_responsequeue(USBNetState *s) 875 { 876 struct rndis_response *r; 877 878 while ((r = s->rndis_resp.tqh_first)) { 879 QTAILQ_REMOVE(&s->rndis_resp, r, entries); 880 g_free(r); 881 } 882 } 883 884 static int rndis_init_response(USBNetState *s, rndis_init_msg_type *buf) 885 { 886 rndis_init_cmplt_type *resp = 887 rndis_queue_response(s, sizeof(rndis_init_cmplt_type)); 888 889 if (!resp) 890 return USB_RET_STALL; 891 892 resp->MessageType = cpu_to_le32(RNDIS_INITIALIZE_CMPLT); 893 resp->MessageLength = cpu_to_le32(sizeof(rndis_init_cmplt_type)); 894 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ 895 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); 896 resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION); 897 resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION); 898 resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS); 899 resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3); 900 resp->MaxPacketsPerTransfer = cpu_to_le32(1); 901 resp->MaxTransferSize = cpu_to_le32(ETH_FRAME_LEN + 902 sizeof(struct rndis_packet_msg_type) + 22); 903 resp->PacketAlignmentFactor = cpu_to_le32(0); 904 resp->AFListOffset = cpu_to_le32(0); 905 resp->AFListSize = cpu_to_le32(0); 906 return 0; 907 } 908 909 static int rndis_query_response(USBNetState *s, 910 rndis_query_msg_type *buf, unsigned int length) 911 { 912 rndis_query_cmplt_type *resp; 913 /* oid_supported_list is the largest data reply */ 914 uint8_t infobuf[sizeof(oid_supported_list)]; 915 uint32_t bufoffs, buflen; 916 int infobuflen; 917 unsigned int resplen; 918 919 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8; 920 buflen = le32_to_cpu(buf->InformationBufferLength); 921 if (buflen > length || bufoffs >= length || bufoffs + buflen > length) { 922 return USB_RET_STALL; 923 } 924 925 infobuflen = ndis_query(s, le32_to_cpu(buf->OID), 926 bufoffs + (uint8_t *) buf, buflen, infobuf, 927 sizeof(infobuf)); 928 resplen = sizeof(rndis_query_cmplt_type) + 929 ((infobuflen < 0) ? 0 : infobuflen); 930 resp = rndis_queue_response(s, resplen); 931 if (!resp) 932 return USB_RET_STALL; 933 934 resp->MessageType = cpu_to_le32(RNDIS_QUERY_CMPLT); 935 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ 936 resp->MessageLength = cpu_to_le32(resplen); 937 938 if (infobuflen < 0) { 939 /* OID not supported */ 940 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED); 941 resp->InformationBufferLength = cpu_to_le32(0); 942 resp->InformationBufferOffset = cpu_to_le32(0); 943 return 0; 944 } 945 946 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); 947 resp->InformationBufferOffset = 948 cpu_to_le32(infobuflen ? sizeof(rndis_query_cmplt_type) - 8 : 0); 949 resp->InformationBufferLength = cpu_to_le32(infobuflen); 950 memcpy(resp + 1, infobuf, infobuflen); 951 952 return 0; 953 } 954 955 static int rndis_set_response(USBNetState *s, 956 rndis_set_msg_type *buf, unsigned int length) 957 { 958 rndis_set_cmplt_type *resp = 959 rndis_queue_response(s, sizeof(rndis_set_cmplt_type)); 960 uint32_t bufoffs, buflen; 961 int ret; 962 963 if (!resp) 964 return USB_RET_STALL; 965 966 bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8; 967 buflen = le32_to_cpu(buf->InformationBufferLength); 968 if (buflen > length || bufoffs >= length || bufoffs + buflen > length) { 969 return USB_RET_STALL; 970 } 971 972 ret = ndis_set(s, le32_to_cpu(buf->OID), 973 bufoffs + (uint8_t *) buf, buflen); 974 resp->MessageType = cpu_to_le32(RNDIS_SET_CMPLT); 975 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ 976 resp->MessageLength = cpu_to_le32(sizeof(rndis_set_cmplt_type)); 977 if (ret < 0) { 978 /* OID not supported */ 979 resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED); 980 return 0; 981 } 982 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); 983 984 return 0; 985 } 986 987 static int rndis_reset_response(USBNetState *s, rndis_reset_msg_type *buf) 988 { 989 rndis_reset_cmplt_type *resp = 990 rndis_queue_response(s, sizeof(rndis_reset_cmplt_type)); 991 992 if (!resp) 993 return USB_RET_STALL; 994 995 resp->MessageType = cpu_to_le32(RNDIS_RESET_CMPLT); 996 resp->MessageLength = cpu_to_le32(sizeof(rndis_reset_cmplt_type)); 997 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); 998 resp->AddressingReset = cpu_to_le32(1); /* reset information */ 999 1000 return 0; 1001 } 1002 1003 static int rndis_keepalive_response(USBNetState *s, 1004 rndis_keepalive_msg_type *buf) 1005 { 1006 rndis_keepalive_cmplt_type *resp = 1007 rndis_queue_response(s, sizeof(rndis_keepalive_cmplt_type)); 1008 1009 if (!resp) 1010 return USB_RET_STALL; 1011 1012 resp->MessageType = cpu_to_le32(RNDIS_KEEPALIVE_CMPLT); 1013 resp->MessageLength = cpu_to_le32(sizeof(rndis_keepalive_cmplt_type)); 1014 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */ 1015 resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS); 1016 1017 return 0; 1018 } 1019 1020 /* Prepare to receive the next packet */ 1021 static void usb_net_reset_in_buf(USBNetState *s) 1022 { 1023 s->in_ptr = s->in_len = 0; 1024 qemu_flush_queued_packets(qemu_get_queue(s->nic)); 1025 } 1026 1027 static int rndis_parse(USBNetState *s, uint8_t *data, int length) 1028 { 1029 uint32_t msg_type = ldl_le_p(data); 1030 1031 switch (msg_type) { 1032 case RNDIS_INITIALIZE_MSG: 1033 s->rndis_state = RNDIS_INITIALIZED; 1034 return rndis_init_response(s, (rndis_init_msg_type *) data); 1035 1036 case RNDIS_HALT_MSG: 1037 s->rndis_state = RNDIS_UNINITIALIZED; 1038 return 0; 1039 1040 case RNDIS_QUERY_MSG: 1041 return rndis_query_response(s, (rndis_query_msg_type *) data, length); 1042 1043 case RNDIS_SET_MSG: 1044 return rndis_set_response(s, (rndis_set_msg_type *) data, length); 1045 1046 case RNDIS_RESET_MSG: 1047 rndis_clear_responsequeue(s); 1048 s->out_ptr = 0; 1049 usb_net_reset_in_buf(s); 1050 return rndis_reset_response(s, (rndis_reset_msg_type *) data); 1051 1052 case RNDIS_KEEPALIVE_MSG: 1053 /* For USB: host does this every 5 seconds */ 1054 return rndis_keepalive_response(s, (rndis_keepalive_msg_type *) data); 1055 } 1056 1057 return USB_RET_STALL; 1058 } 1059 1060 static void usb_net_handle_reset(USBDevice *dev) 1061 { 1062 } 1063 1064 static void usb_net_handle_control(USBDevice *dev, USBPacket *p, 1065 int request, int value, int index, int length, uint8_t *data) 1066 { 1067 USBNetState *s = (USBNetState *) dev; 1068 int ret; 1069 1070 ret = usb_desc_handle_control(dev, p, request, value, index, length, data); 1071 if (ret >= 0) { 1072 return; 1073 } 1074 1075 switch(request) { 1076 case ClassInterfaceOutRequest | USB_CDC_SEND_ENCAPSULATED_COMMAND: 1077 if (!is_rndis(s) || value || index != 0) { 1078 goto fail; 1079 } 1080 #ifdef TRAFFIC_DEBUG 1081 { 1082 unsigned int i; 1083 fprintf(stderr, "SEND_ENCAPSULATED_COMMAND:"); 1084 for (i = 0; i < length; i++) { 1085 if (!(i & 15)) 1086 fprintf(stderr, "\n%04x:", i); 1087 fprintf(stderr, " %02x", data[i]); 1088 } 1089 fprintf(stderr, "\n\n"); 1090 } 1091 #endif 1092 ret = rndis_parse(s, data, length); 1093 if (ret < 0) { 1094 p->status = ret; 1095 } 1096 break; 1097 1098 case ClassInterfaceRequest | USB_CDC_GET_ENCAPSULATED_RESPONSE: 1099 if (!is_rndis(s) || value || index != 0) { 1100 goto fail; 1101 } 1102 p->actual_length = rndis_get_response(s, data); 1103 if (p->actual_length == 0) { 1104 data[0] = 0; 1105 p->actual_length = 1; 1106 } 1107 #ifdef TRAFFIC_DEBUG 1108 { 1109 unsigned int i; 1110 fprintf(stderr, "GET_ENCAPSULATED_RESPONSE:"); 1111 for (i = 0; i < p->actual_length; i++) { 1112 if (!(i & 15)) 1113 fprintf(stderr, "\n%04x:", i); 1114 fprintf(stderr, " %02x", data[i]); 1115 } 1116 fprintf(stderr, "\n\n"); 1117 } 1118 #endif 1119 break; 1120 1121 default: 1122 fail: 1123 fprintf(stderr, "usbnet: failed control transaction: " 1124 "request 0x%x value 0x%x index 0x%x length 0x%x\n", 1125 request, value, index, length); 1126 p->status = USB_RET_STALL; 1127 break; 1128 } 1129 } 1130 1131 static void usb_net_handle_statusin(USBNetState *s, USBPacket *p) 1132 { 1133 le32 buf[2]; 1134 1135 if (p->iov.size < 8) { 1136 p->status = USB_RET_STALL; 1137 return; 1138 } 1139 1140 buf[0] = cpu_to_le32(1); 1141 buf[1] = cpu_to_le32(0); 1142 usb_packet_copy(p, buf, 8); 1143 if (!s->rndis_resp.tqh_first) { 1144 p->status = USB_RET_NAK; 1145 } 1146 1147 #ifdef TRAFFIC_DEBUG 1148 fprintf(stderr, "usbnet: interrupt poll len %zu return %d", 1149 p->iov.size, p->status); 1150 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", p->status); 1151 #endif 1152 } 1153 1154 static void usb_net_handle_datain(USBNetState *s, USBPacket *p) 1155 { 1156 int len; 1157 1158 if (s->in_ptr > s->in_len) { 1159 usb_net_reset_in_buf(s); 1160 p->status = USB_RET_NAK; 1161 return; 1162 } 1163 if (!s->in_len) { 1164 p->status = USB_RET_NAK; 1165 return; 1166 } 1167 len = s->in_len - s->in_ptr; 1168 if (len > p->iov.size) { 1169 len = p->iov.size; 1170 } 1171 usb_packet_copy(p, &s->in_buf[s->in_ptr], len); 1172 s->in_ptr += len; 1173 if (s->in_ptr >= s->in_len && 1174 (is_rndis(s) || (s->in_len & (64 - 1)) || !len)) { 1175 /* no short packet necessary */ 1176 usb_net_reset_in_buf(s); 1177 } 1178 1179 #ifdef TRAFFIC_DEBUG 1180 fprintf(stderr, "usbnet: data in len %zu return %d", p->iov.size, len); 1181 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", len); 1182 #endif 1183 } 1184 1185 static void usb_net_handle_dataout(USBNetState *s, USBPacket *p) 1186 { 1187 int sz = sizeof(s->out_buf) - s->out_ptr; 1188 struct rndis_packet_msg_type *msg = 1189 (struct rndis_packet_msg_type *) s->out_buf; 1190 uint32_t len; 1191 1192 #ifdef TRAFFIC_DEBUG 1193 fprintf(stderr, "usbnet: data out len %zu\n", p->iov.size); 1194 iov_hexdump(p->iov.iov, p->iov.niov, stderr, "usbnet", p->iov.size); 1195 #endif 1196 1197 if (sz > p->iov.size) { 1198 sz = p->iov.size; 1199 } 1200 usb_packet_copy(p, &s->out_buf[s->out_ptr], sz); 1201 s->out_ptr += sz; 1202 1203 if (!is_rndis(s)) { 1204 if (p->iov.size < 64) { 1205 qemu_send_packet(qemu_get_queue(s->nic), s->out_buf, s->out_ptr); 1206 s->out_ptr = 0; 1207 } 1208 return; 1209 } 1210 len = le32_to_cpu(msg->MessageLength); 1211 if (s->out_ptr < 8 || s->out_ptr < len) { 1212 return; 1213 } 1214 if (le32_to_cpu(msg->MessageType) == RNDIS_PACKET_MSG) { 1215 uint32_t offs = 8 + le32_to_cpu(msg->DataOffset); 1216 uint32_t size = le32_to_cpu(msg->DataLength); 1217 if (offs < len && size < len && offs + size <= len) { 1218 qemu_send_packet(qemu_get_queue(s->nic), s->out_buf + offs, size); 1219 } 1220 } 1221 s->out_ptr -= len; 1222 memmove(s->out_buf, &s->out_buf[len], s->out_ptr); 1223 } 1224 1225 static void usb_net_handle_data(USBDevice *dev, USBPacket *p) 1226 { 1227 USBNetState *s = (USBNetState *) dev; 1228 1229 switch(p->pid) { 1230 case USB_TOKEN_IN: 1231 switch (p->ep->nr) { 1232 case 1: 1233 usb_net_handle_statusin(s, p); 1234 break; 1235 1236 case 2: 1237 usb_net_handle_datain(s, p); 1238 break; 1239 1240 default: 1241 goto fail; 1242 } 1243 break; 1244 1245 case USB_TOKEN_OUT: 1246 switch (p->ep->nr) { 1247 case 2: 1248 usb_net_handle_dataout(s, p); 1249 break; 1250 1251 default: 1252 goto fail; 1253 } 1254 break; 1255 1256 default: 1257 fail: 1258 p->status = USB_RET_STALL; 1259 break; 1260 } 1261 1262 if (p->status == USB_RET_STALL) { 1263 fprintf(stderr, "usbnet: failed data transaction: " 1264 "pid 0x%x ep 0x%x len 0x%zx\n", 1265 p->pid, p->ep->nr, p->iov.size); 1266 } 1267 } 1268 1269 static ssize_t usbnet_receive(NetClientState *nc, const uint8_t *buf, size_t size) 1270 { 1271 USBNetState *s = qemu_get_nic_opaque(nc); 1272 uint8_t *in_buf = s->in_buf; 1273 size_t total_size = size; 1274 1275 if (!s->dev.config) { 1276 return -1; 1277 } 1278 1279 if (is_rndis(s)) { 1280 if (s->rndis_state != RNDIS_DATA_INITIALIZED) { 1281 return -1; 1282 } 1283 total_size += sizeof(struct rndis_packet_msg_type); 1284 } 1285 if (total_size > sizeof(s->in_buf)) { 1286 return -1; 1287 } 1288 1289 /* Only accept packet if input buffer is empty */ 1290 if (s->in_len > 0) { 1291 return 0; 1292 } 1293 1294 if (is_rndis(s)) { 1295 struct rndis_packet_msg_type *msg; 1296 1297 msg = (struct rndis_packet_msg_type *)in_buf; 1298 memset(msg, 0, sizeof(struct rndis_packet_msg_type)); 1299 msg->MessageType = cpu_to_le32(RNDIS_PACKET_MSG); 1300 msg->MessageLength = cpu_to_le32(size + sizeof(*msg)); 1301 msg->DataOffset = cpu_to_le32(sizeof(*msg) - 8); 1302 msg->DataLength = cpu_to_le32(size); 1303 /* msg->OOBDataOffset; 1304 * msg->OOBDataLength; 1305 * msg->NumOOBDataElements; 1306 * msg->PerPacketInfoOffset; 1307 * msg->PerPacketInfoLength; 1308 * msg->VcHandle; 1309 * msg->Reserved; 1310 */ 1311 in_buf += sizeof(*msg); 1312 } 1313 1314 memcpy(in_buf, buf, size); 1315 s->in_len = total_size; 1316 s->in_ptr = 0; 1317 return size; 1318 } 1319 1320 static void usbnet_cleanup(NetClientState *nc) 1321 { 1322 USBNetState *s = qemu_get_nic_opaque(nc); 1323 1324 s->nic = NULL; 1325 } 1326 1327 static void usb_net_unrealize(USBDevice *dev, Error **errp) 1328 { 1329 USBNetState *s = (USBNetState *) dev; 1330 1331 /* TODO: remove the nd_table[] entry */ 1332 rndis_clear_responsequeue(s); 1333 qemu_del_nic(s->nic); 1334 } 1335 1336 static NetClientInfo net_usbnet_info = { 1337 .type = NET_CLIENT_DRIVER_NIC, 1338 .size = sizeof(NICState), 1339 .receive = usbnet_receive, 1340 .cleanup = usbnet_cleanup, 1341 }; 1342 1343 static void usb_net_realize(USBDevice *dev, Error **errrp) 1344 { 1345 USBNetState *s = USB_NET(dev); 1346 1347 usb_desc_create_serial(dev); 1348 usb_desc_init(dev); 1349 1350 s->rndis_state = RNDIS_UNINITIALIZED; 1351 QTAILQ_INIT(&s->rndis_resp); 1352 1353 s->medium = 0; /* NDIS_MEDIUM_802_3 */ 1354 s->speed = 1000000; /* 100MBps, in 100Bps units */ 1355 s->media_state = 0; /* NDIS_MEDIA_STATE_CONNECTED */; 1356 s->filter = 0; 1357 s->vendorid = 0x1234; 1358 s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1); 1359 1360 qemu_macaddr_default_if_unset(&s->conf.macaddr); 1361 s->nic = qemu_new_nic(&net_usbnet_info, &s->conf, 1362 object_get_typename(OBJECT(s)), s->dev.qdev.id, s); 1363 qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); 1364 snprintf(s->usbstring_mac, sizeof(s->usbstring_mac), 1365 "%02x%02x%02x%02x%02x%02x", 1366 0x40, 1367 s->conf.macaddr.a[1], 1368 s->conf.macaddr.a[2], 1369 s->conf.macaddr.a[3], 1370 s->conf.macaddr.a[4], 1371 s->conf.macaddr.a[5]); 1372 usb_desc_set_string(dev, STRING_ETHADDR, s->usbstring_mac); 1373 } 1374 1375 static void usb_net_instance_init(Object *obj) 1376 { 1377 USBDevice *dev = USB_DEVICE(obj); 1378 USBNetState *s = USB_NET(dev); 1379 1380 device_add_bootindex_property(obj, &s->conf.bootindex, 1381 "bootindex", "/ethernet-phy@0", 1382 &dev->qdev, NULL); 1383 } 1384 1385 static USBDevice *usb_net_init(USBBus *bus, const char *cmdline) 1386 { 1387 Error *local_err = NULL; 1388 USBDevice *dev; 1389 QemuOpts *opts; 1390 int idx; 1391 1392 opts = qemu_opts_parse_noisily(qemu_find_opts("net"), cmdline, false); 1393 if (!opts) { 1394 return NULL; 1395 } 1396 qemu_opt_set(opts, "type", "nic", &error_abort); 1397 qemu_opt_set(opts, "model", "usb", &error_abort); 1398 1399 idx = net_client_init(opts, false, &local_err); 1400 if (local_err) { 1401 error_report_err(local_err); 1402 return NULL; 1403 } 1404 1405 dev = usb_create(bus, "usb-net"); 1406 qdev_set_nic_properties(&dev->qdev, &nd_table[idx]); 1407 return dev; 1408 } 1409 1410 static const VMStateDescription vmstate_usb_net = { 1411 .name = "usb-net", 1412 .unmigratable = 1, 1413 }; 1414 1415 static Property net_properties[] = { 1416 DEFINE_NIC_PROPERTIES(USBNetState, conf), 1417 DEFINE_PROP_END_OF_LIST(), 1418 }; 1419 1420 static void usb_net_class_initfn(ObjectClass *klass, void *data) 1421 { 1422 DeviceClass *dc = DEVICE_CLASS(klass); 1423 USBDeviceClass *uc = USB_DEVICE_CLASS(klass); 1424 1425 uc->realize = usb_net_realize; 1426 uc->product_desc = "QEMU USB Network Interface"; 1427 uc->usb_desc = &desc_net; 1428 uc->handle_reset = usb_net_handle_reset; 1429 uc->handle_control = usb_net_handle_control; 1430 uc->handle_data = usb_net_handle_data; 1431 uc->unrealize = usb_net_unrealize; 1432 set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1433 dc->fw_name = "network"; 1434 dc->vmsd = &vmstate_usb_net; 1435 dc->props = net_properties; 1436 } 1437 1438 static const TypeInfo net_info = { 1439 .name = TYPE_USB_NET, 1440 .parent = TYPE_USB_DEVICE, 1441 .instance_size = sizeof(USBNetState), 1442 .class_init = usb_net_class_initfn, 1443 .instance_init = usb_net_instance_init, 1444 }; 1445 1446 static void usb_net_register_types(void) 1447 { 1448 type_register_static(&net_info); 1449 usb_legacy_register(TYPE_USB_NET, "net", usb_net_init); 1450 } 1451 1452 type_init(usb_net_register_types) 1453