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/*
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 * QEMU USB Net devices
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 *
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 * Copyright (c) 2006 Thomas Sailer
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 * Copyright (c) 2008 Andrzej Zaborowski
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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#include "qemu-common.h"
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#include "usb.h"
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#include "usb-desc.h"
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#include "net.h"
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#include "qemu-queue.h"
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#include "sysemu.h"
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#include "iov.h"
33

    
34
/*#define TRAFFIC_DEBUG*/
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/* Thanks to NetChip Technologies for donating this product ID.
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 * It's for devices with only CDC Ethernet configurations.
37
 */
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#define CDC_VENDOR_NUM          0x0525  /* NetChip */
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#define CDC_PRODUCT_NUM         0xa4a1  /* Linux-USB Ethernet Gadget */
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/* For hardware that can talk RNDIS and either of the above protocols,
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 * use this ID ... the windows INF files will know it.
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 */
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#define RNDIS_VENDOR_NUM        0x0525  /* NetChip */
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#define RNDIS_PRODUCT_NUM       0xa4a2  /* Ethernet/RNDIS Gadget */
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enum usbstring_idx {
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    STRING_MANUFACTURER                = 1,
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    STRING_PRODUCT,
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    STRING_ETHADDR,
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    STRING_DATA,
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    STRING_CONTROL,
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    STRING_RNDIS_CONTROL,
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    STRING_CDC,
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    STRING_SUBSET,
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    STRING_RNDIS,
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    STRING_SERIALNUMBER,
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};
58

    
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#define DEV_CONFIG_VALUE                1        /* CDC or a subset */
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#define DEV_RNDIS_CONFIG_VALUE                2        /* RNDIS; optional */
61

    
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#define USB_CDC_SUBCLASS_ACM                0x02
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#define USB_CDC_SUBCLASS_ETHERNET        0x06
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#define USB_CDC_PROTO_NONE                0
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#define USB_CDC_ACM_PROTO_VENDOR        0xff
67

    
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#define USB_CDC_HEADER_TYPE                0x00        /* header_desc */
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#define USB_CDC_CALL_MANAGEMENT_TYPE        0x01        /* call_mgmt_descriptor */
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#define USB_CDC_ACM_TYPE                0x02        /* acm_descriptor */
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#define USB_CDC_UNION_TYPE                0x06        /* union_desc */
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#define USB_CDC_ETHERNET_TYPE                0x0f        /* ether_desc */
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74
#define USB_DT_CS_INTERFACE                0x24
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#define USB_DT_CS_ENDPOINT                0x25
76

    
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#define USB_CDC_SEND_ENCAPSULATED_COMMAND        0x00
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#define USB_CDC_GET_ENCAPSULATED_RESPONSE        0x01
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#define USB_CDC_REQ_SET_LINE_CODING                0x20
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#define USB_CDC_REQ_GET_LINE_CODING                0x21
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#define USB_CDC_REQ_SET_CONTROL_LINE_STATE        0x22
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#define USB_CDC_REQ_SEND_BREAK                        0x23
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#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS        0x40
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#define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER        0x41
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#define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER        0x42
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#define USB_CDC_SET_ETHERNET_PACKET_FILTER        0x43
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#define USB_CDC_GET_ETHERNET_STATISTIC                0x44
88

    
89
#define LOG2_STATUS_INTERVAL_MSEC        5    /* 1 << 5 == 32 msec */
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#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 = {
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    [STRING_MANUFACTURER]       = "QEMU",
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    [STRING_PRODUCT]            = "RNDIS/QEMU USB Network Device",
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    [STRING_ETHADDR]            = "400102030405",
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    [STRING_DATA]               = "QEMU USB Net Data Interface",
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    [STRING_CONTROL]            = "QEMU USB Net Control Interface",
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    [STRING_RNDIS_CONTROL]      = "QEMU USB Net RNDIS Control Interface",
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    [STRING_CDC]                = "QEMU USB Net CDC",
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    [STRING_SUBSET]             = "QEMU USB Net Subset",
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    [STRING_RNDIS]              = "QEMU USB Net RNDIS",
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    [STRING_SERIALNUMBER]       = "1",
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};
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static const USBDescIface desc_iface_rndis[] = {
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    {
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        /* RNDIS Control Interface */
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        .bInterfaceNumber              = 0,
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        .bNumEndpoints                 = 1,
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        .bInterfaceClass               = USB_CLASS_COMM,
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        .bInterfaceSubClass            = USB_CDC_SUBCLASS_ACM,
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        .bInterfaceProtocol            = USB_CDC_ACM_PROTO_VENDOR,
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        .iInterface                    = STRING_RNDIS_CONTROL,
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        .ndesc                         = 4,
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        .descs = (USBDescOther[]) {
118
            {
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                /* Header Descriptor */
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                .data = (uint8_t[]) {
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                    0x05,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_HEADER_TYPE,        /*  u8    bDescriptorSubType */
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                    0x10, 0x01,                 /*  le16  bcdCDC */
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                },
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            },{
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                /* Call Management Descriptor */
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                .data = (uint8_t[]) {
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                    0x05,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_CALL_MANAGEMENT_TYPE, /*  u8    bDescriptorSubType */
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                    0x00,                       /*  u8    bmCapabilities */
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                    0x01,                       /*  u8    bDataInterface */
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                },
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            },{
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                /* ACM Descriptor */
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                .data = (uint8_t[]) {
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                    0x04,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_ACM_TYPE,           /*  u8    bDescriptorSubType */
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                    0x00,                       /*  u8    bmCapabilities */
142
                },
143
            },{
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                /* Union Descriptor */
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                .data = (uint8_t[]) {
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                    0x05,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_UNION_TYPE,         /*  u8    bDescriptorSubType */
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                    0x00,                       /*  u8    bMasterInterface0 */
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                    0x01,                       /*  u8    bSlaveInterface0 */
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                },
152
            },
153
        },
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        .eps = (USBDescEndpoint[]) {
155
            {
156
                .bEndpointAddress      = USB_DIR_IN | 0x01,
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                .bmAttributes          = USB_ENDPOINT_XFER_INT,
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                .wMaxPacketSize        = STATUS_BYTECOUNT,
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                .bInterval             = 1 << LOG2_STATUS_INTERVAL_MSEC,
160
            },
161
        }
162
    },{
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        /* RNDIS Data Interface */
164
        .bInterfaceNumber              = 1,
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        .bNumEndpoints                 = 2,
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        .bInterfaceClass               = USB_CLASS_CDC_DATA,
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        .iInterface                    = STRING_DATA,
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        .eps = (USBDescEndpoint[]) {
169
            {
170
                .bEndpointAddress      = USB_DIR_IN | 0x02,
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                .bmAttributes          = USB_ENDPOINT_XFER_BULK,
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                .wMaxPacketSize        = 0x40,
173
            },{
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                .bEndpointAddress      = USB_DIR_OUT | 0x02,
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                .bmAttributes          = USB_ENDPOINT_XFER_BULK,
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                .wMaxPacketSize        = 0x40,
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            }
178
        }
179
    }
180
};
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182
static const USBDescIface desc_iface_cdc[] = {
183
    {
184
        /* CDC Control Interface */
185
        .bInterfaceNumber              = 0,
186
        .bNumEndpoints                 = 1,
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        .bInterfaceClass               = USB_CLASS_COMM,
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        .bInterfaceSubClass            = USB_CDC_SUBCLASS_ETHERNET,
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        .bInterfaceProtocol            = USB_CDC_PROTO_NONE,
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        .iInterface                    = STRING_CONTROL,
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        .ndesc                         = 3,
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        .descs = (USBDescOther[]) {
193
            {
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                /* Header Descriptor */
195
                .data = (uint8_t[]) {
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                    0x05,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_HEADER_TYPE,        /*  u8    bDescriptorSubType */
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                    0x10, 0x01,                 /*  le16  bcdCDC */
200
                },
201
            },{
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                /* Union Descriptor */
203
                .data = (uint8_t[]) {
204
                    0x05,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_UNION_TYPE,         /*  u8    bDescriptorSubType */
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                    0x00,                       /*  u8    bMasterInterface0 */
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                    0x01,                       /*  u8    bSlaveInterface0 */
209
                },
210
            },{
211
                /* Ethernet Descriptor */
212
                .data = (uint8_t[]) {
213
                    0x0d,                       /*  u8    bLength */
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                    USB_DT_CS_INTERFACE,        /*  u8    bDescriptorType */
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                    USB_CDC_ETHERNET_TYPE,      /*  u8    bDescriptorSubType */
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                    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)