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qemu/hw/usb-net.c
Blue Swirl d4c4e6fdc7 usb: remove dead assignments, spotted by clang analyzer 
Value stored is never read.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-25 18:23:04 +00:00

1519 lines
45 KiB
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/*
* QEMU USB Net devices
*
* Copyright (c) 2006 Thomas Sailer
* Copyright (c) 2008 Andrzej Zaborowski
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu-common.h"
#include "usb.h"
#include "net.h"
#include "qemu-queue.h"
/*#define TRAFFIC_DEBUG*/
/* Thanks to NetChip Technologies for donating this product ID.
* It's for devices with only CDC Ethernet configurations.
*/
#define CDC_VENDOR_NUM 0x0525 /* NetChip */
#define CDC_PRODUCT_NUM 0xa4a1 /* Linux-USB Ethernet Gadget */
/* For hardware that can talk RNDIS and either of the above protocols,
* use this ID ... the windows INF files will know it.
*/
#define RNDIS_VENDOR_NUM 0x0525 /* NetChip */
#define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */
enum usbstring_idx {
STRING_MANUFACTURER = 1,
STRING_PRODUCT,
STRING_ETHADDR,
STRING_DATA,
STRING_CONTROL,
STRING_RNDIS_CONTROL,
STRING_CDC,
STRING_SUBSET,
STRING_RNDIS,
STRING_SERIALNUMBER,
};
#define DEV_CONFIG_VALUE 1 /* CDC or a subset */
#define DEV_RNDIS_CONFIG_VALUE 2 /* RNDIS; optional */
#define USB_CDC_SUBCLASS_ACM 0x02
#define USB_CDC_SUBCLASS_ETHERNET 0x06
#define USB_CDC_PROTO_NONE 0
#define USB_CDC_ACM_PROTO_VENDOR 0xff
#define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
#define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
#define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
#define USB_CDC_UNION_TYPE 0x06 /* union_desc */
#define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
#define USB_DT_CS_INTERFACE 0x24
#define USB_DT_CS_ENDPOINT 0x25
#define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
#define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
#define USB_CDC_REQ_SET_LINE_CODING 0x20
#define USB_CDC_REQ_GET_LINE_CODING 0x21
#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
#define USB_CDC_REQ_SEND_BREAK 0x23
#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
#define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
#define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
#define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
#define USB_CDC_GET_ETHERNET_STATISTIC 0x44
#define LOG2_STATUS_INTERVAL_MSEC 5 /* 1 << 5 == 32 msec */
#define STATUS_BYTECOUNT 16 /* 8 byte header + data */
#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
/*
* mostly the same descriptor as the linux gadget rndis driver
*/
static const uint8_t qemu_net_dev_descriptor[] = {
0x12, /* u8 bLength; */
USB_DT_DEVICE, /* u8 bDescriptorType; Device */
0x00, 0x02, /* u16 bcdUSB; v2.0 */
USB_CLASS_COMM, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full only ] */
0x40, /* u8 bMaxPacketSize0 */
RNDIS_VENDOR_NUM & 0xff, RNDIS_VENDOR_NUM >> 8, /* u16 idVendor; */
RNDIS_PRODUCT_NUM & 0xff, RNDIS_PRODUCT_NUM >> 8, /* u16 idProduct; */
0x00, 0x00, /* u16 bcdDevice */
STRING_MANUFACTURER, /* u8 iManufacturer; */
STRING_PRODUCT, /* u8 iProduct; */
STRING_SERIALNUMBER, /* u8 iSerialNumber; */
0x02, /* u8 bNumConfigurations; */
};
static const uint8_t qemu_net_rndis_config_descriptor[] = {
/* Configuration Descriptor */
0x09, /* u8 bLength */
USB_DT_CONFIG, /* u8 bDescriptorType */
0x43, 0x00, /* le16 wTotalLength */
0x02, /* u8 bNumInterfaces */
DEV_RNDIS_CONFIG_VALUE, /* u8 bConfigurationValue */
STRING_RNDIS, /* u8 iConfiguration */
0xc0, /* u8 bmAttributes */
0x32, /* u8 bMaxPower */
/* RNDIS Control Interface */
0x09, /* u8 bLength */
USB_DT_INTERFACE, /* u8 bDescriptorType */
0x00, /* u8 bInterfaceNumber */
0x00, /* u8 bAlternateSetting */
0x01, /* u8 bNumEndpoints */
USB_CLASS_COMM, /* u8 bInterfaceClass */
USB_CDC_SUBCLASS_ACM, /* u8 bInterfaceSubClass */
USB_CDC_ACM_PROTO_VENDOR, /* u8 bInterfaceProtocol */
STRING_RNDIS_CONTROL, /* u8 iInterface */
/* Header Descriptor */
0x05, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
0x10, 0x01, /* le16 bcdCDC */
/* Call Management Descriptor */
0x05, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_CALL_MANAGEMENT_TYPE, /* u8 bDescriptorSubType */
0x00, /* u8 bmCapabilities */
0x01, /* u8 bDataInterface */
/* ACM Descriptor */
0x04, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_ACM_TYPE, /* u8 bDescriptorSubType */
0x00, /* u8 bmCapabilities */
/* Union Descriptor */
0x05, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
0x00, /* u8 bMasterInterface0 */
0x01, /* u8 bSlaveInterface0 */
/* Status Descriptor */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_IN | 1, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_INT, /* u8 bmAttributes */
STATUS_BYTECOUNT & 0xff, STATUS_BYTECOUNT >> 8, /* le16 wMaxPacketSize */
1 << LOG2_STATUS_INTERVAL_MSEC, /* u8 bInterval */
/* RNDIS Data Interface */
0x09, /* u8 bLength */
USB_DT_INTERFACE, /* u8 bDescriptorType */
0x01, /* u8 bInterfaceNumber */
0x00, /* u8 bAlternateSetting */
0x02, /* u8 bNumEndpoints */
USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
0x00, /* u8 bInterfaceSubClass */
0x00, /* u8 bInterfaceProtocol */
STRING_DATA, /* u8 iInterface */
/* Source Endpoint */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_IN | 2, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
0x40, 0x00, /* le16 wMaxPacketSize */
0x00, /* u8 bInterval */
/* Sink Endpoint */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_OUT | 2, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
0x40, 0x00, /* le16 wMaxPacketSize */
0x00 /* u8 bInterval */
};
static const uint8_t qemu_net_cdc_config_descriptor[] = {
/* Configuration Descriptor */
0x09, /* u8 bLength */
USB_DT_CONFIG, /* u8 bDescriptorType */
0x50, 0x00, /* le16 wTotalLength */
0x02, /* u8 bNumInterfaces */
DEV_CONFIG_VALUE, /* u8 bConfigurationValue */
STRING_CDC, /* u8 iConfiguration */
0xc0, /* u8 bmAttributes */
0x32, /* u8 bMaxPower */
/* CDC Control Interface */
0x09, /* u8 bLength */
USB_DT_INTERFACE, /* u8 bDescriptorType */
0x00, /* u8 bInterfaceNumber */
0x00, /* u8 bAlternateSetting */
0x01, /* u8 bNumEndpoints */
USB_CLASS_COMM, /* u8 bInterfaceClass */
USB_CDC_SUBCLASS_ETHERNET, /* u8 bInterfaceSubClass */
USB_CDC_PROTO_NONE, /* u8 bInterfaceProtocol */
STRING_CONTROL, /* u8 iInterface */
/* Header Descriptor */
0x05, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_HEADER_TYPE, /* u8 bDescriptorSubType */
0x10, 0x01, /* le16 bcdCDC */
/* Union Descriptor */
0x05, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_UNION_TYPE, /* u8 bDescriptorSubType */
0x00, /* u8 bMasterInterface0 */
0x01, /* u8 bSlaveInterface0 */
/* Ethernet Descriptor */
0x0d, /* u8 bLength */
USB_DT_CS_INTERFACE, /* u8 bDescriptorType */
USB_CDC_ETHERNET_TYPE, /* u8 bDescriptorSubType */
STRING_ETHADDR, /* u8 iMACAddress */
0x00, 0x00, 0x00, 0x00, /* le32 bmEthernetStatistics */
ETH_FRAME_LEN & 0xff, ETH_FRAME_LEN >> 8, /* le16 wMaxSegmentSize */
0x00, 0x00, /* le16 wNumberMCFilters */
0x00, /* u8 bNumberPowerFilters */
/* Status Descriptor */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_IN | 1, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_INT, /* u8 bmAttributes */
STATUS_BYTECOUNT & 0xff, STATUS_BYTECOUNT >> 8, /* le16 wMaxPacketSize */
1 << LOG2_STATUS_INTERVAL_MSEC, /* u8 bInterval */
/* CDC Data (nop) Interface */
0x09, /* u8 bLength */
USB_DT_INTERFACE, /* u8 bDescriptorType */
0x01, /* u8 bInterfaceNumber */
0x00, /* u8 bAlternateSetting */
0x00, /* u8 bNumEndpoints */
USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
0x00, /* u8 bInterfaceSubClass */
0x00, /* u8 bInterfaceProtocol */
0x00, /* u8 iInterface */
/* CDC Data Interface */
0x09, /* u8 bLength */
USB_DT_INTERFACE, /* u8 bDescriptorType */
0x01, /* u8 bInterfaceNumber */
0x01, /* u8 bAlternateSetting */
0x02, /* u8 bNumEndpoints */
USB_CLASS_CDC_DATA, /* u8 bInterfaceClass */
0x00, /* u8 bInterfaceSubClass */
0x00, /* u8 bInterfaceProtocol */
STRING_DATA, /* u8 iInterface */
/* Source Endpoint */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_IN | 2, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
0x40, 0x00, /* le16 wMaxPacketSize */
0x00, /* u8 bInterval */
/* Sink Endpoint */
0x07, /* u8 bLength */
USB_DT_ENDPOINT, /* u8 bDescriptorType */
USB_DIR_OUT | 2, /* u8 bEndpointAddress */
USB_ENDPOINT_XFER_BULK, /* u8 bmAttributes */
0x40, 0x00, /* le16 wMaxPacketSize */
0x00 /* u8 bInterval */
};
/*
* RNDIS Definitions - in theory not specific to USB.
*/
#define RNDIS_MAXIMUM_FRAME_SIZE 1518
#define RNDIS_MAX_TOTAL_SIZE 1558
/* Remote NDIS Versions */
#define RNDIS_MAJOR_VERSION 1
#define RNDIS_MINOR_VERSION 0
/* Status Values */
#define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */
#define RNDIS_STATUS_FAILURE 0xc0000001U /* Unspecified error */
#define RNDIS_STATUS_INVALID_DATA 0xc0010015U /* Invalid data */
#define RNDIS_STATUS_NOT_SUPPORTED 0xc00000bbU /* Unsupported request */
#define RNDIS_STATUS_MEDIA_CONNECT 0x4001000bU /* Device connected */
#define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000cU /* Device disconnected */
/* Message Set for Connectionless (802.3) Devices */
enum {
RNDIS_PACKET_MSG = 1,
RNDIS_INITIALIZE_MSG = 2, /* Initialize device */
RNDIS_HALT_MSG = 3,
RNDIS_QUERY_MSG = 4,
RNDIS_SET_MSG = 5,
RNDIS_RESET_MSG = 6,
RNDIS_INDICATE_STATUS_MSG = 7,
RNDIS_KEEPALIVE_MSG = 8,
};
/* Message completion */
enum {
RNDIS_INITIALIZE_CMPLT = 0x80000002U,
RNDIS_QUERY_CMPLT = 0x80000004U,
RNDIS_SET_CMPLT = 0x80000005U,
RNDIS_RESET_CMPLT = 0x80000006U,
RNDIS_KEEPALIVE_CMPLT = 0x80000008U,
};
/* Device Flags */
enum {
RNDIS_DF_CONNECTIONLESS = 1,
RNDIS_DF_CONNECTIONORIENTED = 2,
};
#define RNDIS_MEDIUM_802_3 0x00000000U
/* from drivers/net/sk98lin/h/skgepnmi.h */
#define OID_PNP_CAPABILITIES 0xfd010100
#define OID_PNP_SET_POWER 0xfd010101
#define OID_PNP_QUERY_POWER 0xfd010102
#define OID_PNP_ADD_WAKE_UP_PATTERN 0xfd010103
#define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xfd010104
#define OID_PNP_ENABLE_WAKE_UP 0xfd010106
typedef uint32_t le32;
typedef struct rndis_init_msg_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 MajorVersion;
le32 MinorVersion;
le32 MaxTransferSize;
} rndis_init_msg_type;
typedef struct rndis_init_cmplt_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 Status;
le32 MajorVersion;
le32 MinorVersion;
le32 DeviceFlags;
le32 Medium;
le32 MaxPacketsPerTransfer;
le32 MaxTransferSize;
le32 PacketAlignmentFactor;
le32 AFListOffset;
le32 AFListSize;
} rndis_init_cmplt_type;
typedef struct rndis_halt_msg_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
} rndis_halt_msg_type;
typedef struct rndis_query_msg_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 OID;
le32 InformationBufferLength;
le32 InformationBufferOffset;
le32 DeviceVcHandle;
} rndis_query_msg_type;
typedef struct rndis_query_cmplt_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 Status;
le32 InformationBufferLength;
le32 InformationBufferOffset;
} rndis_query_cmplt_type;
typedef struct rndis_set_msg_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 OID;
le32 InformationBufferLength;
le32 InformationBufferOffset;
le32 DeviceVcHandle;
} rndis_set_msg_type;
typedef struct rndis_set_cmplt_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 Status;
} rndis_set_cmplt_type;
typedef struct rndis_reset_msg_type {
le32 MessageType;
le32 MessageLength;
le32 Reserved;
} rndis_reset_msg_type;
typedef struct rndis_reset_cmplt_type {
le32 MessageType;
le32 MessageLength;
le32 Status;
le32 AddressingReset;
} rndis_reset_cmplt_type;
typedef struct rndis_indicate_status_msg_type {
le32 MessageType;
le32 MessageLength;
le32 Status;
le32 StatusBufferLength;
le32 StatusBufferOffset;
} rndis_indicate_status_msg_type;
typedef struct rndis_keepalive_msg_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
} rndis_keepalive_msg_type;
typedef struct rndis_keepalive_cmplt_type {
le32 MessageType;
le32 MessageLength;
le32 RequestID;
le32 Status;
} rndis_keepalive_cmplt_type;
struct rndis_packet_msg_type {
le32 MessageType;
le32 MessageLength;
le32 DataOffset;
le32 DataLength;
le32 OOBDataOffset;
le32 OOBDataLength;
le32 NumOOBDataElements;
le32 PerPacketInfoOffset;
le32 PerPacketInfoLength;
le32 VcHandle;
le32 Reserved;
};
struct rndis_config_parameter {
le32 ParameterNameOffset;
le32 ParameterNameLength;
le32 ParameterType;
le32 ParameterValueOffset;
le32 ParameterValueLength;
};
/* implementation specific */
enum rndis_state
{
RNDIS_UNINITIALIZED,
RNDIS_INITIALIZED,
RNDIS_DATA_INITIALIZED,
};
/* from ndis.h */
enum ndis_oid {
/* Required Object IDs (OIDs) */
OID_GEN_SUPPORTED_LIST = 0x00010101,
OID_GEN_HARDWARE_STATUS = 0x00010102,
OID_GEN_MEDIA_SUPPORTED = 0x00010103,
OID_GEN_MEDIA_IN_USE = 0x00010104,
OID_GEN_MAXIMUM_LOOKAHEAD = 0x00010105,
OID_GEN_MAXIMUM_FRAME_SIZE = 0x00010106,
OID_GEN_LINK_SPEED = 0x00010107,
OID_GEN_TRANSMIT_BUFFER_SPACE = 0x00010108,
OID_GEN_RECEIVE_BUFFER_SPACE = 0x00010109,
OID_GEN_TRANSMIT_BLOCK_SIZE = 0x0001010a,
OID_GEN_RECEIVE_BLOCK_SIZE = 0x0001010b,
OID_GEN_VENDOR_ID = 0x0001010c,
OID_GEN_VENDOR_DESCRIPTION = 0x0001010d,
OID_GEN_CURRENT_PACKET_FILTER = 0x0001010e,
OID_GEN_CURRENT_LOOKAHEAD = 0x0001010f,
OID_GEN_DRIVER_VERSION = 0x00010110,
OID_GEN_MAXIMUM_TOTAL_SIZE = 0x00010111,
OID_GEN_PROTOCOL_OPTIONS = 0x00010112,
OID_GEN_MAC_OPTIONS = 0x00010113,
OID_GEN_MEDIA_CONNECT_STATUS = 0x00010114,
OID_GEN_MAXIMUM_SEND_PACKETS = 0x00010115,
OID_GEN_VENDOR_DRIVER_VERSION = 0x00010116,
OID_GEN_SUPPORTED_GUIDS = 0x00010117,
OID_GEN_NETWORK_LAYER_ADDRESSES = 0x00010118,
OID_GEN_TRANSPORT_HEADER_OFFSET = 0x00010119,
OID_GEN_MACHINE_NAME = 0x0001021a,
OID_GEN_RNDIS_CONFIG_PARAMETER = 0x0001021b,
OID_GEN_VLAN_ID = 0x0001021c,
/* Optional OIDs */
OID_GEN_MEDIA_CAPABILITIES = 0x00010201,
OID_GEN_PHYSICAL_MEDIUM = 0x00010202,
/* Required statistics OIDs */
OID_GEN_XMIT_OK = 0x00020101,
OID_GEN_RCV_OK = 0x00020102,
OID_GEN_XMIT_ERROR = 0x00020103,
OID_GEN_RCV_ERROR = 0x00020104,
OID_GEN_RCV_NO_BUFFER = 0x00020105,
/* Optional statistics OIDs */
OID_GEN_DIRECTED_BYTES_XMIT = 0x00020201,
OID_GEN_DIRECTED_FRAMES_XMIT = 0x00020202,
OID_GEN_MULTICAST_BYTES_XMIT = 0x00020203,
OID_GEN_MULTICAST_FRAMES_XMIT = 0x00020204,
OID_GEN_BROADCAST_BYTES_XMIT = 0x00020205,
OID_GEN_BROADCAST_FRAMES_XMIT = 0x00020206,
OID_GEN_DIRECTED_BYTES_RCV = 0x00020207,
OID_GEN_DIRECTED_FRAMES_RCV = 0x00020208,
OID_GEN_MULTICAST_BYTES_RCV = 0x00020209,
OID_GEN_MULTICAST_FRAMES_RCV = 0x0002020a,
OID_GEN_BROADCAST_BYTES_RCV = 0x0002020b,
OID_GEN_BROADCAST_FRAMES_RCV = 0x0002020c,
OID_GEN_RCV_CRC_ERROR = 0x0002020d,
OID_GEN_TRANSMIT_QUEUE_LENGTH = 0x0002020e,
OID_GEN_GET_TIME_CAPS = 0x0002020f,
OID_GEN_GET_NETCARD_TIME = 0x00020210,
OID_GEN_NETCARD_LOAD = 0x00020211,
OID_GEN_DEVICE_PROFILE = 0x00020212,
OID_GEN_INIT_TIME_MS = 0x00020213,
OID_GEN_RESET_COUNTS = 0x00020214,
OID_GEN_MEDIA_SENSE_COUNTS = 0x00020215,
OID_GEN_FRIENDLY_NAME = 0x00020216,
OID_GEN_MINIPORT_INFO = 0x00020217,
OID_GEN_RESET_VERIFY_PARAMETERS = 0x00020218,
/* IEEE 802.3 (Ethernet) OIDs */
OID_802_3_PERMANENT_ADDRESS = 0x01010101,
OID_802_3_CURRENT_ADDRESS = 0x01010102,
OID_802_3_MULTICAST_LIST = 0x01010103,
OID_802_3_MAXIMUM_LIST_SIZE = 0x01010104,
OID_802_3_MAC_OPTIONS = 0x01010105,
OID_802_3_RCV_ERROR_ALIGNMENT = 0x01020101,
OID_802_3_XMIT_ONE_COLLISION = 0x01020102,
OID_802_3_XMIT_MORE_COLLISIONS = 0x01020103,
OID_802_3_XMIT_DEFERRED = 0x01020201,
OID_802_3_XMIT_MAX_COLLISIONS = 0x01020202,
OID_802_3_RCV_OVERRUN = 0x01020203,
OID_802_3_XMIT_UNDERRUN = 0x01020204,
OID_802_3_XMIT_HEARTBEAT_FAILURE = 0x01020205,
OID_802_3_XMIT_TIMES_CRS_LOST = 0x01020206,
OID_802_3_XMIT_LATE_COLLISIONS = 0x01020207,
};
static const uint32_t oid_supported_list[] =
{
/* the general stuff */
OID_GEN_SUPPORTED_LIST,
OID_GEN_HARDWARE_STATUS,
OID_GEN_MEDIA_SUPPORTED,
OID_GEN_MEDIA_IN_USE,
OID_GEN_MAXIMUM_FRAME_SIZE,
OID_GEN_LINK_SPEED,
OID_GEN_TRANSMIT_BLOCK_SIZE,
OID_GEN_RECEIVE_BLOCK_SIZE,
OID_GEN_VENDOR_ID,
OID_GEN_VENDOR_DESCRIPTION,
OID_GEN_VENDOR_DRIVER_VERSION,
OID_GEN_CURRENT_PACKET_FILTER,
OID_GEN_MAXIMUM_TOTAL_SIZE,
OID_GEN_MEDIA_CONNECT_STATUS,
OID_GEN_PHYSICAL_MEDIUM,
/* the statistical stuff */
OID_GEN_XMIT_OK,
OID_GEN_RCV_OK,
OID_GEN_XMIT_ERROR,
OID_GEN_RCV_ERROR,
OID_GEN_RCV_NO_BUFFER,
/* IEEE 802.3 */
/* the general stuff */
OID_802_3_PERMANENT_ADDRESS,
OID_802_3_CURRENT_ADDRESS,
OID_802_3_MULTICAST_LIST,
OID_802_3_MAC_OPTIONS,
OID_802_3_MAXIMUM_LIST_SIZE,
/* the statistical stuff */
OID_802_3_RCV_ERROR_ALIGNMENT,
OID_802_3_XMIT_ONE_COLLISION,
OID_802_3_XMIT_MORE_COLLISIONS,
};
#define NDIS_MAC_OPTION_COPY_LOOKAHEAD_DATA (1 << 0)
#define NDIS_MAC_OPTION_RECEIVE_SERIALIZED (1 << 1)
#define NDIS_MAC_OPTION_TRANSFERS_NOT_PEND (1 << 2)
#define NDIS_MAC_OPTION_NO_LOOPBACK (1 << 3)
#define NDIS_MAC_OPTION_FULL_DUPLEX (1 << 4)
#define NDIS_MAC_OPTION_EOTX_INDICATION (1 << 5)
#define NDIS_MAC_OPTION_8021P_PRIORITY (1 << 6)
struct rndis_response {
QTAILQ_ENTRY(rndis_response) entries;
uint32_t length;
uint8_t buf[0];
};
typedef struct USBNetState {
USBDevice dev;
unsigned int rndis;
enum rndis_state rndis_state;
uint32_t medium;
uint32_t speed;
uint32_t media_state;
uint16_t filter;
uint32_t vendorid;
unsigned int out_ptr;
uint8_t out_buf[2048];
USBPacket *inpkt;
unsigned int in_ptr, in_len;
uint8_t in_buf[2048];
char usbstring_mac[13];
NICState *nic;
NICConf conf;
QTAILQ_HEAD(rndis_resp_head, rndis_response) rndis_resp;
} USBNetState;
static int ndis_query(USBNetState *s, uint32_t oid,
uint8_t *inbuf, unsigned int inlen, uint8_t *outbuf,
size_t outlen)
{
unsigned int i;
switch (oid) {
/* general oids (table 4-1) */
/* mandatory */
case OID_GEN_SUPPORTED_LIST:
for (i = 0; i < ARRAY_SIZE(oid_supported_list); i++)
((le32 *) outbuf)[i] = cpu_to_le32(oid_supported_list[i]);
return sizeof(oid_supported_list);
/* mandatory */
case OID_GEN_HARDWARE_STATUS:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_GEN_MEDIA_SUPPORTED:
*((le32 *) outbuf) = cpu_to_le32(s->medium);
return sizeof(le32);
/* mandatory */
case OID_GEN_MEDIA_IN_USE:
*((le32 *) outbuf) = cpu_to_le32(s->medium);
return sizeof(le32);
/* mandatory */
case OID_GEN_MAXIMUM_FRAME_SIZE:
*((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
return sizeof(le32);
/* mandatory */
case OID_GEN_LINK_SPEED:
*((le32 *) outbuf) = cpu_to_le32(s->speed);
return sizeof(le32);
/* mandatory */
case OID_GEN_TRANSMIT_BLOCK_SIZE:
*((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
return sizeof(le32);
/* mandatory */
case OID_GEN_RECEIVE_BLOCK_SIZE:
*((le32 *) outbuf) = cpu_to_le32(ETH_FRAME_LEN);
return sizeof(le32);
/* mandatory */
case OID_GEN_VENDOR_ID:
*((le32 *) outbuf) = cpu_to_le32(s->vendorid);
return sizeof(le32);
/* mandatory */
case OID_GEN_VENDOR_DESCRIPTION:
pstrcpy((char *)outbuf, outlen, "QEMU USB RNDIS Net");
return strlen((char *)outbuf) + 1;
case OID_GEN_VENDOR_DRIVER_VERSION:
*((le32 *) outbuf) = cpu_to_le32(1);
return sizeof(le32);
/* mandatory */
case OID_GEN_CURRENT_PACKET_FILTER:
*((le32 *) outbuf) = cpu_to_le32(s->filter);
return sizeof(le32);
/* mandatory */
case OID_GEN_MAXIMUM_TOTAL_SIZE:
*((le32 *) outbuf) = cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
return sizeof(le32);
/* mandatory */
case OID_GEN_MEDIA_CONNECT_STATUS:
*((le32 *) outbuf) = cpu_to_le32(s->media_state);
return sizeof(le32);
case OID_GEN_PHYSICAL_MEDIUM:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
case OID_GEN_MAC_OPTIONS:
*((le32 *) outbuf) = cpu_to_le32(
NDIS_MAC_OPTION_RECEIVE_SERIALIZED |
NDIS_MAC_OPTION_FULL_DUPLEX);
return sizeof(le32);
/* statistics OIDs (table 4-2) */
/* mandatory */
case OID_GEN_XMIT_OK:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_GEN_RCV_OK:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_GEN_XMIT_ERROR:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_GEN_RCV_ERROR:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_GEN_RCV_NO_BUFFER:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* ieee802.3 OIDs (table 4-3) */
/* mandatory */
case OID_802_3_PERMANENT_ADDRESS:
memcpy(outbuf, s->conf.macaddr.a, 6);
return 6;
/* mandatory */
case OID_802_3_CURRENT_ADDRESS:
memcpy(outbuf, s->conf.macaddr.a, 6);
return 6;
/* mandatory */
case OID_802_3_MULTICAST_LIST:
*((le32 *) outbuf) = cpu_to_le32(0xe0000000);
return sizeof(le32);
/* mandatory */
case OID_802_3_MAXIMUM_LIST_SIZE:
*((le32 *) outbuf) = cpu_to_le32(1);
return sizeof(le32);
case OID_802_3_MAC_OPTIONS:
return 0;
/* ieee802.3 statistics OIDs (table 4-4) */
/* mandatory */
case OID_802_3_RCV_ERROR_ALIGNMENT:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_802_3_XMIT_ONE_COLLISION:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
/* mandatory */
case OID_802_3_XMIT_MORE_COLLISIONS:
*((le32 *) outbuf) = cpu_to_le32(0);
return sizeof(le32);
default:
fprintf(stderr, "usbnet: unknown OID 0x%08x\n", oid);
return 0;
}
return -1;
}
static int ndis_set(USBNetState *s, uint32_t oid,
uint8_t *inbuf, unsigned int inlen)
{
switch (oid) {
case OID_GEN_CURRENT_PACKET_FILTER:
s->filter = le32_to_cpup((le32 *) inbuf);
if (s->filter) {
s->rndis_state = RNDIS_DATA_INITIALIZED;
} else {
s->rndis_state = RNDIS_INITIALIZED;
}
return 0;
case OID_802_3_MULTICAST_LIST:
return 0;
}
return -1;
}
static int rndis_get_response(USBNetState *s, uint8_t *buf)
{
int ret = 0;
struct rndis_response *r = s->rndis_resp.tqh_first;
if (!r)
return ret;
QTAILQ_REMOVE(&s->rndis_resp, r, entries);
ret = r->length;
memcpy(buf, r->buf, r->length);
qemu_free(r);
return ret;
}
static void *rndis_queue_response(USBNetState *s, unsigned int length)
{
struct rndis_response *r =
qemu_mallocz(sizeof(struct rndis_response) + length);
QTAILQ_INSERT_TAIL(&s->rndis_resp, r, entries);
r->length = length;
return &r->buf[0];
}
static void rndis_clear_responsequeue(USBNetState *s)
{
struct rndis_response *r;
while ((r = s->rndis_resp.tqh_first)) {
QTAILQ_REMOVE(&s->rndis_resp, r, entries);
qemu_free(r);
}
}
static int rndis_init_response(USBNetState *s, rndis_init_msg_type *buf)
{
rndis_init_cmplt_type *resp =
rndis_queue_response(s, sizeof(rndis_init_cmplt_type));
if (!resp)
return USB_RET_STALL;
resp->MessageType = cpu_to_le32(RNDIS_INITIALIZE_CMPLT);
resp->MessageLength = cpu_to_le32(sizeof(rndis_init_cmplt_type));
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
resp->MajorVersion = cpu_to_le32(RNDIS_MAJOR_VERSION);
resp->MinorVersion = cpu_to_le32(RNDIS_MINOR_VERSION);
resp->DeviceFlags = cpu_to_le32(RNDIS_DF_CONNECTIONLESS);
resp->Medium = cpu_to_le32(RNDIS_MEDIUM_802_3);
resp->MaxPacketsPerTransfer = cpu_to_le32(1);
resp->MaxTransferSize = cpu_to_le32(ETH_FRAME_LEN +
sizeof(struct rndis_packet_msg_type) + 22);
resp->PacketAlignmentFactor = cpu_to_le32(0);
resp->AFListOffset = cpu_to_le32(0);
resp->AFListSize = cpu_to_le32(0);
return 0;
}
static int rndis_query_response(USBNetState *s,
rndis_query_msg_type *buf, unsigned int length)
{
rndis_query_cmplt_type *resp;
/* oid_supported_list is the largest data reply */
uint8_t infobuf[sizeof(oid_supported_list)];
uint32_t bufoffs, buflen;
int infobuflen;
unsigned int resplen;
bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
buflen = le32_to_cpu(buf->InformationBufferLength);
if (bufoffs + buflen > length)
return USB_RET_STALL;
infobuflen = ndis_query(s, le32_to_cpu(buf->OID),
bufoffs + (uint8_t *) buf, buflen, infobuf,
sizeof(infobuf));
resplen = sizeof(rndis_query_cmplt_type) +
((infobuflen < 0) ? 0 : infobuflen);
resp = rndis_queue_response(s, resplen);
if (!resp)
return USB_RET_STALL;
resp->MessageType = cpu_to_le32(RNDIS_QUERY_CMPLT);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->MessageLength = cpu_to_le32(resplen);
if (infobuflen < 0) {
/* OID not supported */
resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
resp->InformationBufferLength = cpu_to_le32(0);
resp->InformationBufferOffset = cpu_to_le32(0);
return 0;
}
resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
resp->InformationBufferOffset =
cpu_to_le32(infobuflen ? sizeof(rndis_query_cmplt_type) - 8 : 0);
resp->InformationBufferLength = cpu_to_le32(infobuflen);
memcpy(resp + 1, infobuf, infobuflen);
return 0;
}
static int rndis_set_response(USBNetState *s,
rndis_set_msg_type *buf, unsigned int length)
{
rndis_set_cmplt_type *resp =
rndis_queue_response(s, sizeof(rndis_set_cmplt_type));
uint32_t bufoffs, buflen;
int ret;
if (!resp)
return USB_RET_STALL;
bufoffs = le32_to_cpu(buf->InformationBufferOffset) + 8;
buflen = le32_to_cpu(buf->InformationBufferLength);
if (bufoffs + buflen > length)
return USB_RET_STALL;
ret = ndis_set(s, le32_to_cpu(buf->OID),
bufoffs + (uint8_t *) buf, buflen);
resp->MessageType = cpu_to_le32(RNDIS_SET_CMPLT);
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->MessageLength = cpu_to_le32(sizeof(rndis_set_cmplt_type));
if (ret < 0) {
/* OID not supported */
resp->Status = cpu_to_le32(RNDIS_STATUS_NOT_SUPPORTED);
return 0;
}
resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
return 0;
}
static int rndis_reset_response(USBNetState *s, rndis_reset_msg_type *buf)
{
rndis_reset_cmplt_type *resp =
rndis_queue_response(s, sizeof(rndis_reset_cmplt_type));
if (!resp)
return USB_RET_STALL;
resp->MessageType = cpu_to_le32(RNDIS_RESET_CMPLT);
resp->MessageLength = cpu_to_le32(sizeof(rndis_reset_cmplt_type));
resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
resp->AddressingReset = cpu_to_le32(1); /* reset information */
return 0;
}
static int rndis_keepalive_response(USBNetState *s,
rndis_keepalive_msg_type *buf)
{
rndis_keepalive_cmplt_type *resp =
rndis_queue_response(s, sizeof(rndis_keepalive_cmplt_type));
if (!resp)
return USB_RET_STALL;
resp->MessageType = cpu_to_le32(RNDIS_KEEPALIVE_CMPLT);
resp->MessageLength = cpu_to_le32(sizeof(rndis_keepalive_cmplt_type));
resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
resp->Status = cpu_to_le32(RNDIS_STATUS_SUCCESS);
return 0;
}
static int rndis_parse(USBNetState *s, uint8_t *data, int length)
{
uint32_t msg_type;
le32 *tmp = (le32 *) data;
msg_type = le32_to_cpup(tmp);
switch (msg_type) {
case RNDIS_INITIALIZE_MSG:
s->rndis_state = RNDIS_INITIALIZED;
return rndis_init_response(s, (rndis_init_msg_type *) data);
case RNDIS_HALT_MSG:
s->rndis_state = RNDIS_UNINITIALIZED;
return 0;
case RNDIS_QUERY_MSG:
return rndis_query_response(s, (rndis_query_msg_type *) data, length);
case RNDIS_SET_MSG:
return rndis_set_response(s, (rndis_set_msg_type *) data, length);
case RNDIS_RESET_MSG:
rndis_clear_responsequeue(s);
s->out_ptr = s->in_ptr = s->in_len = 0;
return rndis_reset_response(s, (rndis_reset_msg_type *) data);
case RNDIS_KEEPALIVE_MSG:
/* For USB: host does this every 5 seconds */
return rndis_keepalive_response(s, (rndis_keepalive_msg_type *) data);
}
return USB_RET_STALL;
}
static void usb_net_handle_reset(USBDevice *dev)
{
}
static const char * const usb_net_stringtable[] = {
[STRING_MANUFACTURER] = "QEMU",
[STRING_PRODUCT] = "RNDIS/QEMU USB Network Device",
[STRING_ETHADDR] = "400102030405",
[STRING_DATA] = "QEMU USB Net Data Interface",
[STRING_CONTROL] = "QEMU USB Net Control Interface",
[STRING_RNDIS_CONTROL] = "QEMU USB Net RNDIS Control Interface",
[STRING_CDC] = "QEMU USB Net CDC",
[STRING_SUBSET] = "QEMU USB Net Subset",
[STRING_RNDIS] = "QEMU USB Net RNDIS",
[STRING_SERIALNUMBER] = "1",
};
static int usb_net_handle_control(USBDevice *dev, int request, int value,
int index, int length, uint8_t *data)
{
USBNetState *s = (USBNetState *) dev;
int ret = 0;
switch(request) {
case DeviceRequest | USB_REQ_GET_STATUS:
data[0] = (1 << USB_DEVICE_SELF_POWERED) |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
data[1] = 0x00;
ret = 2;
break;
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
if (value == USB_DEVICE_REMOTE_WAKEUP) {
dev->remote_wakeup = 0;
} else {
goto fail;
}
ret = 0;
break;
case DeviceOutRequest | USB_REQ_SET_FEATURE:
if (value == USB_DEVICE_REMOTE_WAKEUP) {
dev->remote_wakeup = 1;
} else {
goto fail;
}
ret = 0;
break;
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
dev->addr = value;
ret = 0;
break;
case ClassInterfaceOutRequest | USB_CDC_SEND_ENCAPSULATED_COMMAND:
if (!s->rndis || value || index != 0)
goto fail;
#ifdef TRAFFIC_DEBUG
{
unsigned int i;
fprintf(stderr, "SEND_ENCAPSULATED_COMMAND:");
for (i = 0; i < length; i++) {
if (!(i & 15))
fprintf(stderr, "\n%04x:", i);
fprintf(stderr, " %02x", data[i]);
}
fprintf(stderr, "\n\n");
}
#endif
ret = rndis_parse(s, data, length);
break;
case ClassInterfaceRequest | USB_CDC_GET_ENCAPSULATED_RESPONSE:
if (!s->rndis || value || index != 0)
goto fail;
ret = rndis_get_response(s, data);
if (!ret) {
data[0] = 0;
ret = 1;
}
#ifdef TRAFFIC_DEBUG
{
unsigned int i;
fprintf(stderr, "GET_ENCAPSULATED_RESPONSE:");
for (i = 0; i < ret; i++) {
if (!(i & 15))
fprintf(stderr, "\n%04x:", i);
fprintf(stderr, " %02x", data[i]);
}
fprintf(stderr, "\n\n");
}
#endif
break;
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
switch(value >> 8) {
case USB_DT_DEVICE:
ret = sizeof(qemu_net_dev_descriptor);
memcpy(data, qemu_net_dev_descriptor, ret);
break;
case USB_DT_CONFIG:
switch (value & 0xff) {
case 0:
ret = sizeof(qemu_net_rndis_config_descriptor);
memcpy(data, qemu_net_rndis_config_descriptor, ret);
break;
case 1:
ret = sizeof(qemu_net_cdc_config_descriptor);
memcpy(data, qemu_net_cdc_config_descriptor, ret);
break;
default:
goto fail;
}
data[2] = ret & 0xff;
data[3] = ret >> 8;
break;
case USB_DT_STRING:
switch (value & 0xff) {
case 0:
/* language ids */
data[0] = 4;
data[1] = 3;
data[2] = 0x09;
data[3] = 0x04;
ret = 4;
break;
case STRING_ETHADDR:
ret = set_usb_string(data, s->usbstring_mac);
break;
default:
if (usb_net_stringtable[value & 0xff]) {
ret = set_usb_string(data,
usb_net_stringtable[value & 0xff]);
break;
}
goto fail;
}
break;
default:
goto fail;
}
break;
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
data[0] = s->rndis ? DEV_RNDIS_CONFIG_VALUE : DEV_CONFIG_VALUE;
ret = 1;
break;
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
switch (value & 0xff) {
case DEV_CONFIG_VALUE:
s->rndis = 0;
break;
case DEV_RNDIS_CONFIG_VALUE:
s->rndis = 1;
break;
default:
goto fail;
}
ret = 0;
break;
case DeviceRequest | USB_REQ_GET_INTERFACE:
case InterfaceRequest | USB_REQ_GET_INTERFACE:
data[0] = 0;
ret = 1;
break;
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
ret = 0;
break;
default:
fail:
fprintf(stderr, "usbnet: failed control transaction: "
"request 0x%x value 0x%x index 0x%x length 0x%x\n",
request, value, index, length);
ret = USB_RET_STALL;
break;
}
return ret;
}
static int usb_net_handle_statusin(USBNetState *s, USBPacket *p)
{
int ret = 8;
if (p->len < 8)
return USB_RET_STALL;
((le32 *) p->data)[0] = cpu_to_le32(1);
((le32 *) p->data)[1] = cpu_to_le32(0);
if (!s->rndis_resp.tqh_first)
ret = USB_RET_NAK;
#ifdef TRAFFIC_DEBUG
fprintf(stderr, "usbnet: interrupt poll len %u return %d", p->len, ret);
{
int i;
fprintf(stderr, ":");
for (i = 0; i < ret; i++) {
if (!(i & 15))
fprintf(stderr, "\n%04x:", i);
fprintf(stderr, " %02x", p->data[i]);
}
fprintf(stderr, "\n\n");
}
#endif
return ret;
}
static int usb_net_handle_datain(USBNetState *s, USBPacket *p)
{
int ret = USB_RET_NAK;
if (s->in_ptr > s->in_len) {
s->in_ptr = s->in_len = 0;
ret = USB_RET_NAK;
return ret;
}
if (!s->in_len) {
ret = USB_RET_NAK;
return ret;
}
ret = s->in_len - s->in_ptr;
if (ret > p->len)
ret = p->len;
memcpy(p->data, &s->in_buf[s->in_ptr], ret);
s->in_ptr += ret;
if (s->in_ptr >= s->in_len &&
(s->rndis || (s->in_len & (64 - 1)) || !ret)) {
/* no short packet necessary */
s->in_ptr = s->in_len = 0;
}
#ifdef TRAFFIC_DEBUG
fprintf(stderr, "usbnet: data in len %u return %d", p->len, ret);
{
int i;
fprintf(stderr, ":");
for (i = 0; i < ret; i++) {
if (!(i & 15))
fprintf(stderr, "\n%04x:", i);
fprintf(stderr, " %02x", p->data[i]);
}
fprintf(stderr, "\n\n");
}
#endif
return ret;
}
static int usb_net_handle_dataout(USBNetState *s, USBPacket *p)
{
int ret = p->len;
int sz = sizeof(s->out_buf) - s->out_ptr;
struct rndis_packet_msg_type *msg =
(struct rndis_packet_msg_type *) s->out_buf;
uint32_t len;
#ifdef TRAFFIC_DEBUG
fprintf(stderr, "usbnet: data out len %u\n", p->len);
{
int i;
fprintf(stderr, ":");
for (i = 0; i < p->len; i++) {
if (!(i & 15))
fprintf(stderr, "\n%04x:", i);
fprintf(stderr, " %02x", p->data[i]);
}
fprintf(stderr, "\n\n");
}
#endif
if (sz > ret)
sz = ret;
memcpy(&s->out_buf[s->out_ptr], p->data, sz);
s->out_ptr += sz;
if (!s->rndis) {
if (ret < 64) {
qemu_send_packet(&s->nic->nc, s->out_buf, s->out_ptr);
s->out_ptr = 0;
}
return ret;
}
len = le32_to_cpu(msg->MessageLength);
if (s->out_ptr < 8 || s->out_ptr < len)
return ret;
if (le32_to_cpu(msg->MessageType) == RNDIS_PACKET_MSG) {
uint32_t offs = 8 + le32_to_cpu(msg->DataOffset);
uint32_t size = le32_to_cpu(msg->DataLength);
if (offs + size <= len)
qemu_send_packet(&s->nic->nc, s->out_buf + offs, size);
}
s->out_ptr -= len;
memmove(s->out_buf, &s->out_buf[len], s->out_ptr);
return ret;
}
static int usb_net_handle_data(USBDevice *dev, USBPacket *p)
{
USBNetState *s = (USBNetState *) dev;
int ret = 0;
switch(p->pid) {
case USB_TOKEN_IN:
switch (p->devep) {
case 1:
ret = usb_net_handle_statusin(s, p);
break;
case 2:
ret = usb_net_handle_datain(s, p);
break;
default:
goto fail;
}
break;
case USB_TOKEN_OUT:
switch (p->devep) {
case 2:
ret = usb_net_handle_dataout(s, p);
break;
default:
goto fail;
}
break;
default:
fail:
ret = USB_RET_STALL;
break;
}
if (ret == USB_RET_STALL)
fprintf(stderr, "usbnet: failed data transaction: "
"pid 0x%x ep 0x%x len 0x%x\n",
p->pid, p->devep, p->len);
return ret;
}
static ssize_t usbnet_receive(VLANClientState *nc, const uint8_t *buf, size_t size)
{
USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
struct rndis_packet_msg_type *msg;
if (s->rndis) {
msg = (struct rndis_packet_msg_type *) s->in_buf;
if (!s->rndis_state == RNDIS_DATA_INITIALIZED)
return -1;
if (size + sizeof(struct rndis_packet_msg_type) > sizeof(s->in_buf))
return -1;
memset(msg, 0, sizeof(struct rndis_packet_msg_type));
msg->MessageType = cpu_to_le32(RNDIS_PACKET_MSG);
msg->MessageLength = cpu_to_le32(size + sizeof(struct rndis_packet_msg_type));
msg->DataOffset = cpu_to_le32(sizeof(struct rndis_packet_msg_type) - 8);
msg->DataLength = cpu_to_le32(size);
/* msg->OOBDataOffset;
* msg->OOBDataLength;
* msg->NumOOBDataElements;
* msg->PerPacketInfoOffset;
* msg->PerPacketInfoLength;
* msg->VcHandle;
* msg->Reserved;
*/
memcpy(msg + 1, buf, size);
s->in_len = size + sizeof(struct rndis_packet_msg_type);
} else {
if (size > sizeof(s->in_buf))
return -1;
memcpy(s->in_buf, buf, size);
s->in_len = size;
}
s->in_ptr = 0;
return size;
}
static int usbnet_can_receive(VLANClientState *nc)
{
USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
if (s->rndis && !s->rndis_state == RNDIS_DATA_INITIALIZED)
return 1;
return !s->in_len;
}
static void usbnet_cleanup(VLANClientState *nc)
{
USBNetState *s = DO_UPCAST(NICState, nc, nc)->opaque;
s->nic = NULL;
}
static void usb_net_handle_destroy(USBDevice *dev)
{
USBNetState *s = (USBNetState *) dev;
/* TODO: remove the nd_table[] entry */
rndis_clear_responsequeue(s);
qemu_del_vlan_client(&s->nic->nc);
}
static NetClientInfo net_usbnet_info = {
.type = NET_CLIENT_TYPE_NIC,
.size = sizeof(NICState),
.can_receive = usbnet_can_receive,
.receive = usbnet_receive,
.cleanup = usbnet_cleanup,
};
static int usb_net_initfn(USBDevice *dev)
{
USBNetState *s = DO_UPCAST(USBNetState, dev, dev);
s->dev.speed = USB_SPEED_FULL;
s->rndis = 1;
s->rndis_state = RNDIS_UNINITIALIZED;
QTAILQ_INIT(&s->rndis_resp);
s->medium = 0; /* NDIS_MEDIUM_802_3 */
s->speed = 1000000; /* 100MBps, in 100Bps units */
s->media_state = 0; /* NDIS_MEDIA_STATE_CONNECTED */;
s->filter = 0;
s->vendorid = 0x1234;
qemu_macaddr_default_if_unset(&s->conf.macaddr);
s->nic = qemu_new_nic(&net_usbnet_info, &s->conf,
s->dev.qdev.info->name, s->dev.qdev.id, s);
qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
snprintf(s->usbstring_mac, sizeof(s->usbstring_mac),
"%02x%02x%02x%02x%02x%02x",
0x40,
s->conf.macaddr.a[1],
s->conf.macaddr.a[2],
s->conf.macaddr.a[3],
s->conf.macaddr.a[4],
s->conf.macaddr.a[5]);
return 0;
}
static USBDevice *usb_net_init(const char *cmdline)
{
USBDevice *dev;
QemuOpts *opts;
int idx;
opts = qemu_opts_parse(&qemu_net_opts, cmdline, 0);
if (!opts) {
return NULL;
}
qemu_opt_set(opts, "type", "nic");
qemu_opt_set(opts, "model", "usb");
idx = net_client_init(NULL, opts, 0);
if (idx == -1) {
return NULL;
}
dev = usb_create(NULL /* FIXME */, "usb-net");
if (!dev) {
return NULL;
}
qdev_set_nic_properties(&dev->qdev, &nd_table[idx]);
qdev_init_nofail(&dev->qdev);
return dev;
}
static struct USBDeviceInfo net_info = {
.product_desc = "QEMU USB Network Interface",
.qdev.name = "usb-net",
.qdev.size = sizeof(USBNetState),
.init = usb_net_initfn,
.handle_packet = usb_generic_handle_packet,
.handle_reset = usb_net_handle_reset,
.handle_control = usb_net_handle_control,
.handle_data = usb_net_handle_data,
.handle_destroy = usb_net_handle_destroy,
.usbdevice_name = "net",
.usbdevice_init = usb_net_init,
.qdev.props = (Property[]) {
DEFINE_NIC_PROPERTIES(USBNetState, conf),
DEFINE_PROP_END_OF_LIST(),
}
};
static void usb_net_register_devices(void)
{
usb_qdev_register(&net_info);
}
device_init(usb_net_register_devices)
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