mirror of https://gitee.com/openkylin/qemu.git
1603 lines
46 KiB
C
1603 lines
46 KiB
C
/*
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* Media Transfer Protocol implementation, backed by host filesystem.
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*
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* Copyright Red Hat, Inc 2014
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*
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* Author:
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* Gerd Hoffmann <kraxel@redhat.com>
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*
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* This code is licensed under the GPL v2 or later.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include <wchar.h>
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#include <dirent.h>
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#include <sys/statvfs.h>
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#ifdef CONFIG_INOTIFY1
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#include <sys/inotify.h>
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#include "qemu/main-loop.h"
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#endif
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#include "qemu-common.h"
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#include "qemu/iov.h"
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#include "trace.h"
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#include "hw/usb.h"
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#include "hw/usb/desc.h"
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/* ----------------------------------------------------------------------- */
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enum mtp_container_type {
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TYPE_COMMAND = 1,
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TYPE_DATA = 2,
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TYPE_RESPONSE = 3,
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TYPE_EVENT = 4,
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};
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enum mtp_code {
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/* command codes */
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CMD_GET_DEVICE_INFO = 0x1001,
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CMD_OPEN_SESSION = 0x1002,
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CMD_CLOSE_SESSION = 0x1003,
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CMD_GET_STORAGE_IDS = 0x1004,
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CMD_GET_STORAGE_INFO = 0x1005,
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CMD_GET_NUM_OBJECTS = 0x1006,
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CMD_GET_OBJECT_HANDLES = 0x1007,
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CMD_GET_OBJECT_INFO = 0x1008,
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CMD_GET_OBJECT = 0x1009,
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CMD_GET_PARTIAL_OBJECT = 0x101b,
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CMD_GET_OBJECT_PROPS_SUPPORTED = 0x9801,
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CMD_GET_OBJECT_PROP_DESC = 0x9802,
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CMD_GET_OBJECT_PROP_VALUE = 0x9803,
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/* response codes */
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RES_OK = 0x2001,
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RES_GENERAL_ERROR = 0x2002,
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RES_SESSION_NOT_OPEN = 0x2003,
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RES_INVALID_TRANSACTION_ID = 0x2004,
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RES_OPERATION_NOT_SUPPORTED = 0x2005,
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RES_PARAMETER_NOT_SUPPORTED = 0x2006,
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RES_INCOMPLETE_TRANSFER = 0x2007,
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RES_INVALID_STORAGE_ID = 0x2008,
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RES_INVALID_OBJECT_HANDLE = 0x2009,
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RES_INVALID_OBJECT_FORMAT_CODE = 0x200b,
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RES_SPEC_BY_FORMAT_UNSUPPORTED = 0x2014,
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RES_INVALID_PARENT_OBJECT = 0x201a,
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RES_INVALID_PARAMETER = 0x201d,
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RES_SESSION_ALREADY_OPEN = 0x201e,
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RES_INVALID_OBJECT_PROP_CODE = 0xA801,
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/* format codes */
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FMT_UNDEFINED_OBJECT = 0x3000,
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FMT_ASSOCIATION = 0x3001,
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/* event codes */
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EVT_OBJ_ADDED = 0x4002,
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EVT_OBJ_REMOVED = 0x4003,
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EVT_OBJ_INFO_CHANGED = 0x4007,
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/* object properties */
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PROP_STORAGE_ID = 0xDC01,
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PROP_OBJECT_FORMAT = 0xDC02,
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PROP_OBJECT_COMPRESSED_SIZE = 0xDC04,
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PROP_PARENT_OBJECT = 0xDC0B,
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PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER = 0xDC41,
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PROP_NAME = 0xDC44,
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};
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enum mtp_data_type {
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DATA_TYPE_UINT16 = 0x0004,
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DATA_TYPE_UINT32 = 0x0006,
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DATA_TYPE_UINT64 = 0x0008,
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DATA_TYPE_UINT128 = 0x000a,
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DATA_TYPE_STRING = 0xffff,
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};
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typedef struct {
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uint32_t length;
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uint16_t type;
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uint16_t code;
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uint32_t trans;
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} QEMU_PACKED mtp_container;
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/* ----------------------------------------------------------------------- */
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typedef struct MTPState MTPState;
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typedef struct MTPControl MTPControl;
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typedef struct MTPData MTPData;
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typedef struct MTPObject MTPObject;
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enum {
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EP_DATA_IN = 1,
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EP_DATA_OUT,
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EP_EVENT,
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};
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#ifdef CONFIG_INOTIFY1
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typedef struct MTPMonEntry MTPMonEntry;
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struct MTPMonEntry {
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uint32_t event;
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uint32_t handle;
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QTAILQ_ENTRY(MTPMonEntry) next;
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};
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#endif
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struct MTPControl {
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uint16_t code;
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uint32_t trans;
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int argc;
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uint32_t argv[5];
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};
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struct MTPData {
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uint16_t code;
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uint32_t trans;
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uint64_t offset;
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uint64_t length;
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uint32_t alloc;
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uint8_t *data;
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bool first;
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int fd;
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};
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struct MTPObject {
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uint32_t handle;
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uint16_t format;
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char *name;
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char *path;
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struct stat stat;
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#ifdef CONFIG_INOTIFY1
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/* inotify watch cookie */
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int watchfd;
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#endif
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MTPObject *parent;
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uint32_t nchildren;
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QLIST_HEAD(, MTPObject) children;
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QLIST_ENTRY(MTPObject) list;
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bool have_children;
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QTAILQ_ENTRY(MTPObject) next;
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};
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struct MTPState {
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USBDevice dev;
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char *root;
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char *desc;
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uint32_t flags;
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MTPData *data_in;
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MTPData *data_out;
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MTPControl *result;
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uint32_t session;
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uint32_t next_handle;
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QTAILQ_HEAD(, MTPObject) objects;
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#ifdef CONFIG_INOTIFY1
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/* inotify descriptor */
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int inotifyfd;
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QTAILQ_HEAD(events, MTPMonEntry) events;
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#endif
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};
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#define TYPE_USB_MTP "usb-mtp"
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#define USB_MTP(obj) OBJECT_CHECK(MTPState, (obj), TYPE_USB_MTP)
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#define QEMU_STORAGE_ID 0x00010001
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#define MTP_FLAG_WRITABLE 0
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#define FLAG_SET(_mtp, _flag) ((_mtp)->flags & (1 << (_flag)))
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/* ----------------------------------------------------------------------- */
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#define MTP_MANUFACTURER "QEMU"
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#define MTP_PRODUCT "QEMU filesharing"
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enum {
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STR_MANUFACTURER = 1,
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STR_PRODUCT,
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STR_SERIALNUMBER,
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STR_MTP,
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STR_CONFIG_FULL,
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STR_CONFIG_HIGH,
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STR_CONFIG_SUPER,
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};
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static const USBDescStrings desc_strings = {
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[STR_MANUFACTURER] = MTP_MANUFACTURER,
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[STR_PRODUCT] = MTP_PRODUCT,
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[STR_SERIALNUMBER] = "34617",
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[STR_MTP] = "MTP",
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[STR_CONFIG_FULL] = "Full speed config (usb 1.1)",
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[STR_CONFIG_HIGH] = "High speed config (usb 2.0)",
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[STR_CONFIG_SUPER] = "Super speed config (usb 3.0)",
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};
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static const USBDescIface desc_iface_full = {
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.bInterfaceNumber = 0,
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.bNumEndpoints = 3,
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.bInterfaceClass = USB_CLASS_STILL_IMAGE,
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.bInterfaceSubClass = 0x01,
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.bInterfaceProtocol = 0x01,
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.iInterface = STR_MTP,
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.eps = (USBDescEndpoint[]) {
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{
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.bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 64,
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},{
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.bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 64,
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},{
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.bEndpointAddress = USB_DIR_IN | EP_EVENT,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = 64,
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.bInterval = 0x0a,
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},
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}
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};
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static const USBDescDevice desc_device_full = {
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.bcdUSB = 0x0200,
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.bMaxPacketSize0 = 8,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) {
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{
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = STR_CONFIG_FULL,
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.bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
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.bMaxPower = 2,
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.nif = 1,
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.ifs = &desc_iface_full,
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},
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},
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};
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static const USBDescIface desc_iface_high = {
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.bInterfaceNumber = 0,
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.bNumEndpoints = 3,
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.bInterfaceClass = USB_CLASS_STILL_IMAGE,
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.bInterfaceSubClass = 0x01,
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.bInterfaceProtocol = 0x01,
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.iInterface = STR_MTP,
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.eps = (USBDescEndpoint[]) {
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{
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.bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 512,
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},{
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.bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 512,
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},{
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.bEndpointAddress = USB_DIR_IN | EP_EVENT,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = 64,
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.bInterval = 0x0a,
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},
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}
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};
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static const USBDescDevice desc_device_high = {
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.bcdUSB = 0x0200,
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.bMaxPacketSize0 = 64,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) {
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{
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = STR_CONFIG_HIGH,
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.bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
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.bMaxPower = 2,
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.nif = 1,
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.ifs = &desc_iface_high,
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},
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},
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};
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static const USBDescMSOS desc_msos = {
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.CompatibleID = "MTP",
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.SelectiveSuspendEnabled = true,
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};
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static const USBDesc desc = {
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.id = {
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.idVendor = 0x46f4, /* CRC16() of "QEMU" */
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.idProduct = 0x0004,
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.bcdDevice = 0,
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.iManufacturer = STR_MANUFACTURER,
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.iProduct = STR_PRODUCT,
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.iSerialNumber = STR_SERIALNUMBER,
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},
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.full = &desc_device_full,
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.high = &desc_device_high,
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.str = desc_strings,
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.msos = &desc_msos,
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};
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/* ----------------------------------------------------------------------- */
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static MTPObject *usb_mtp_object_alloc(MTPState *s, uint32_t handle,
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MTPObject *parent, char *name)
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{
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MTPObject *o = g_new0(MTPObject, 1);
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if (name[0] == '.') {
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goto ignore;
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}
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o->handle = handle;
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o->parent = parent;
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o->name = g_strdup(name);
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if (parent == NULL) {
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o->path = g_strdup(name);
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} else {
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o->path = g_strdup_printf("%s/%s", parent->path, name);
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}
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if (lstat(o->path, &o->stat) != 0) {
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goto ignore;
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}
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if (S_ISREG(o->stat.st_mode)) {
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o->format = FMT_UNDEFINED_OBJECT;
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} else if (S_ISDIR(o->stat.st_mode)) {
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o->format = FMT_ASSOCIATION;
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} else {
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goto ignore;
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}
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if (access(o->path, R_OK) != 0) {
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goto ignore;
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}
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trace_usb_mtp_object_alloc(s->dev.addr, o->handle, o->path);
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QTAILQ_INSERT_TAIL(&s->objects, o, next);
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return o;
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ignore:
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g_free(o->name);
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g_free(o->path);
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g_free(o);
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return NULL;
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}
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static void usb_mtp_object_free(MTPState *s, MTPObject *o)
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{
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MTPObject *iter;
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if (!o) {
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return;
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}
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trace_usb_mtp_object_free(s->dev.addr, o->handle, o->path);
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QTAILQ_REMOVE(&s->objects, o, next);
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if (o->parent) {
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QLIST_REMOVE(o, list);
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o->parent->nchildren--;
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}
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while (!QLIST_EMPTY(&o->children)) {
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iter = QLIST_FIRST(&o->children);
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usb_mtp_object_free(s, iter);
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}
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g_free(o->name);
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g_free(o->path);
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g_free(o);
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}
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static MTPObject *usb_mtp_object_lookup(MTPState *s, uint32_t handle)
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{
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MTPObject *o;
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QTAILQ_FOREACH(o, &s->objects, next) {
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if (o->handle == handle) {
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return o;
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}
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}
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return NULL;
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}
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static MTPObject *usb_mtp_add_child(MTPState *s, MTPObject *o,
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char *name)
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{
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MTPObject *child =
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usb_mtp_object_alloc(s, s->next_handle++, o, name);
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if (child) {
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trace_usb_mtp_add_child(s->dev.addr, child->handle, child->path);
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QLIST_INSERT_HEAD(&o->children, child, list);
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o->nchildren++;
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if (child->format == FMT_ASSOCIATION) {
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QLIST_INIT(&child->children);
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}
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}
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return child;
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}
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#ifdef CONFIG_INOTIFY1
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static MTPObject *usb_mtp_object_lookup_name(MTPObject *parent,
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char *name, int len)
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{
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MTPObject *iter;
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QLIST_FOREACH(iter, &parent->children, list) {
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if (strncmp(iter->name, name, len) == 0) {
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return iter;
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}
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}
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return NULL;
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}
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static MTPObject *usb_mtp_object_lookup_wd(MTPState *s, int wd)
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{
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MTPObject *iter;
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QTAILQ_FOREACH(iter, &s->objects, next) {
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if (iter->watchfd == wd) {
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return iter;
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}
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}
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return NULL;
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}
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static void inotify_watchfn(void *arg)
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{
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MTPState *s = arg;
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ssize_t bytes;
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/* From the man page: atleast one event can be read */
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int pos;
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char buf[sizeof(struct inotify_event) + NAME_MAX + 1];
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for (;;) {
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bytes = read(s->inotifyfd, buf, sizeof(buf));
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pos = 0;
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if (bytes <= 0) {
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/* Better luck next time */
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return;
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}
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|
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/*
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* TODO: Ignore initiator initiated events.
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* For now we are good because the store is RO
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*/
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while (bytes > 0) {
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char *p = buf + pos;
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struct inotify_event *event = (struct inotify_event *)p;
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int watchfd = 0;
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uint32_t mask = event->mask & (IN_CREATE | IN_DELETE |
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IN_MODIFY | IN_IGNORED);
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MTPObject *parent = usb_mtp_object_lookup_wd(s, event->wd);
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MTPMonEntry *entry = NULL;
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MTPObject *o;
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pos = pos + sizeof(struct inotify_event) + event->len;
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bytes = bytes - pos;
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if (!parent) {
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continue;
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}
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switch (mask) {
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case IN_CREATE:
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if (usb_mtp_object_lookup_name
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(parent, event->name, event->len)) {
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/* Duplicate create event */
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continue;
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}
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entry = g_new0(MTPMonEntry, 1);
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entry->handle = s->next_handle;
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entry->event = EVT_OBJ_ADDED;
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o = usb_mtp_add_child(s, parent, event->name);
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if (!o) {
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g_free(entry);
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continue;
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}
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o->watchfd = watchfd;
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trace_usb_mtp_inotify_event(s->dev.addr, event->name,
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event->mask, "Obj Added");
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break;
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case IN_DELETE:
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/*
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* The kernel issues a IN_IGNORED event
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* when a dir containing a watchpoint is
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* deleted, so we don't have to delete the
|
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* watchpoint
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*/
|
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o = usb_mtp_object_lookup_name(parent, event->name, event->len);
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if (!o) {
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continue;
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}
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entry = g_new0(MTPMonEntry, 1);
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entry->handle = o->handle;
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entry->event = EVT_OBJ_REMOVED;
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trace_usb_mtp_inotify_event(s->dev.addr, o->path,
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event->mask, "Obj Deleted");
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usb_mtp_object_free(s, o);
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break;
|
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|
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case IN_MODIFY:
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o = usb_mtp_object_lookup_name(parent, event->name, event->len);
|
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if (!o) {
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continue;
|
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}
|
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entry = g_new0(MTPMonEntry, 1);
|
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entry->handle = o->handle;
|
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entry->event = EVT_OBJ_INFO_CHANGED;
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trace_usb_mtp_inotify_event(s->dev.addr, o->path,
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event->mask, "Obj Modified");
|
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break;
|
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|
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case IN_IGNORED:
|
|
o = usb_mtp_object_lookup_name(parent, event->name, event->len);
|
|
trace_usb_mtp_inotify_event(s->dev.addr, o->path,
|
|
event->mask, "Obj ignored");
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "usb-mtp: failed to parse inotify event\n");
|
|
continue;
|
|
}
|
|
|
|
if (entry) {
|
|
QTAILQ_INSERT_HEAD(&s->events, entry, next);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int usb_mtp_inotify_init(MTPState *s)
|
|
{
|
|
int fd;
|
|
|
|
fd = inotify_init1(IN_NONBLOCK);
|
|
if (fd == -1) {
|
|
return 1;
|
|
}
|
|
|
|
QTAILQ_INIT(&s->events);
|
|
s->inotifyfd = fd;
|
|
|
|
qemu_set_fd_handler(fd, inotify_watchfn, NULL, s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void usb_mtp_inotify_cleanup(MTPState *s)
|
|
{
|
|
MTPMonEntry *e, *p;
|
|
|
|
if (!s->inotifyfd) {
|
|
return;
|
|
}
|
|
|
|
qemu_set_fd_handler(s->inotifyfd, NULL, NULL, s);
|
|
close(s->inotifyfd);
|
|
|
|
QTAILQ_FOREACH_SAFE(e, &s->events, next, p) {
|
|
QTAILQ_REMOVE(&s->events, e, next);
|
|
g_free(e);
|
|
}
|
|
}
|
|
|
|
static int usb_mtp_add_watch(int inotifyfd, char *path)
|
|
{
|
|
uint32_t mask = IN_CREATE | IN_DELETE | IN_MODIFY |
|
|
IN_ISDIR;
|
|
|
|
return inotify_add_watch(inotifyfd, path, mask);
|
|
}
|
|
#endif
|
|
|
|
static void usb_mtp_object_readdir(MTPState *s, MTPObject *o)
|
|
{
|
|
struct dirent *entry;
|
|
DIR *dir;
|
|
|
|
if (o->have_children) {
|
|
return;
|
|
}
|
|
o->have_children = true;
|
|
|
|
dir = opendir(o->path);
|
|
if (!dir) {
|
|
return;
|
|
}
|
|
#ifdef CONFIG_INOTIFY1
|
|
int watchfd = usb_mtp_add_watch(s->inotifyfd, o->path);
|
|
if (watchfd == -1) {
|
|
fprintf(stderr, "usb-mtp: failed to add watch for %s\n", o->path);
|
|
} else {
|
|
trace_usb_mtp_inotify_event(s->dev.addr, o->path,
|
|
0, "Watch Added");
|
|
o->watchfd = watchfd;
|
|
}
|
|
#endif
|
|
while ((entry = readdir(dir)) != NULL) {
|
|
usb_mtp_add_child(s, o, entry->d_name);
|
|
}
|
|
closedir(dir);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static MTPData *usb_mtp_data_alloc(MTPControl *c)
|
|
{
|
|
MTPData *data = g_new0(MTPData, 1);
|
|
|
|
data->code = c->code;
|
|
data->trans = c->trans;
|
|
data->fd = -1;
|
|
data->first = true;
|
|
return data;
|
|
}
|
|
|
|
static void usb_mtp_data_free(MTPData *data)
|
|
{
|
|
if (data == NULL) {
|
|
return;
|
|
}
|
|
if (data->fd != -1) {
|
|
close(data->fd);
|
|
}
|
|
g_free(data->data);
|
|
g_free(data);
|
|
}
|
|
|
|
static void usb_mtp_realloc(MTPData *data, uint32_t bytes)
|
|
{
|
|
if (data->length + bytes <= data->alloc) {
|
|
return;
|
|
}
|
|
data->alloc = (data->length + bytes + 0xff) & ~0xff;
|
|
data->data = g_realloc(data->data, data->alloc);
|
|
}
|
|
|
|
static void usb_mtp_add_u8(MTPData *data, uint8_t val)
|
|
{
|
|
usb_mtp_realloc(data, 1);
|
|
data->data[data->length++] = val;
|
|
}
|
|
|
|
static void usb_mtp_add_u16(MTPData *data, uint16_t val)
|
|
{
|
|
usb_mtp_realloc(data, 2);
|
|
data->data[data->length++] = (val >> 0) & 0xff;
|
|
data->data[data->length++] = (val >> 8) & 0xff;
|
|
}
|
|
|
|
static void usb_mtp_add_u32(MTPData *data, uint32_t val)
|
|
{
|
|
usb_mtp_realloc(data, 4);
|
|
data->data[data->length++] = (val >> 0) & 0xff;
|
|
data->data[data->length++] = (val >> 8) & 0xff;
|
|
data->data[data->length++] = (val >> 16) & 0xff;
|
|
data->data[data->length++] = (val >> 24) & 0xff;
|
|
}
|
|
|
|
static void usb_mtp_add_u64(MTPData *data, uint64_t val)
|
|
{
|
|
usb_mtp_realloc(data, 8);
|
|
data->data[data->length++] = (val >> 0) & 0xff;
|
|
data->data[data->length++] = (val >> 8) & 0xff;
|
|
data->data[data->length++] = (val >> 16) & 0xff;
|
|
data->data[data->length++] = (val >> 24) & 0xff;
|
|
data->data[data->length++] = (val >> 32) & 0xff;
|
|
data->data[data->length++] = (val >> 40) & 0xff;
|
|
data->data[data->length++] = (val >> 48) & 0xff;
|
|
data->data[data->length++] = (val >> 56) & 0xff;
|
|
}
|
|
|
|
static void usb_mtp_add_u16_array(MTPData *data, uint32_t len,
|
|
const uint16_t *vals)
|
|
{
|
|
int i;
|
|
|
|
usb_mtp_add_u32(data, len);
|
|
for (i = 0; i < len; i++) {
|
|
usb_mtp_add_u16(data, vals[i]);
|
|
}
|
|
}
|
|
|
|
static void usb_mtp_add_u32_array(MTPData *data, uint32_t len,
|
|
const uint32_t *vals)
|
|
{
|
|
int i;
|
|
|
|
usb_mtp_add_u32(data, len);
|
|
for (i = 0; i < len; i++) {
|
|
usb_mtp_add_u32(data, vals[i]);
|
|
}
|
|
}
|
|
|
|
static void usb_mtp_add_wstr(MTPData *data, const wchar_t *str)
|
|
{
|
|
uint32_t len = wcslen(str);
|
|
int i;
|
|
|
|
if (len > 0) {
|
|
len++; /* include terminating L'\0' */
|
|
}
|
|
|
|
usb_mtp_add_u8(data, len);
|
|
for (i = 0; i < len; i++) {
|
|
usb_mtp_add_u16(data, str[i]);
|
|
}
|
|
}
|
|
|
|
static void usb_mtp_add_str(MTPData *data, const char *str)
|
|
{
|
|
uint32_t len = strlen(str)+1;
|
|
wchar_t *wstr = g_new(wchar_t, len);
|
|
size_t ret;
|
|
|
|
ret = mbstowcs(wstr, str, len);
|
|
if (ret == -1) {
|
|
usb_mtp_add_wstr(data, L"Oops");
|
|
} else {
|
|
usb_mtp_add_wstr(data, wstr);
|
|
}
|
|
|
|
g_free(wstr);
|
|
}
|
|
|
|
static void usb_mtp_add_time(MTPData *data, time_t time)
|
|
{
|
|
char buf[16];
|
|
struct tm tm;
|
|
|
|
gmtime_r(&time, &tm);
|
|
strftime(buf, sizeof(buf), "%Y%m%dT%H%M%S", &tm);
|
|
usb_mtp_add_str(data, buf);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static void usb_mtp_queue_result(MTPState *s, uint16_t code, uint32_t trans,
|
|
int argc, uint32_t arg0, uint32_t arg1)
|
|
{
|
|
MTPControl *c = g_new0(MTPControl, 1);
|
|
|
|
c->code = code;
|
|
c->trans = trans;
|
|
c->argc = argc;
|
|
if (argc > 0) {
|
|
c->argv[0] = arg0;
|
|
}
|
|
if (argc > 1) {
|
|
c->argv[1] = arg1;
|
|
}
|
|
|
|
assert(s->result == NULL);
|
|
s->result = c;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static MTPData *usb_mtp_get_device_info(MTPState *s, MTPControl *c)
|
|
{
|
|
static const uint16_t ops[] = {
|
|
CMD_GET_DEVICE_INFO,
|
|
CMD_OPEN_SESSION,
|
|
CMD_CLOSE_SESSION,
|
|
CMD_GET_STORAGE_IDS,
|
|
CMD_GET_STORAGE_INFO,
|
|
CMD_GET_NUM_OBJECTS,
|
|
CMD_GET_OBJECT_HANDLES,
|
|
CMD_GET_OBJECT_INFO,
|
|
CMD_GET_OBJECT,
|
|
CMD_GET_PARTIAL_OBJECT,
|
|
CMD_GET_OBJECT_PROPS_SUPPORTED,
|
|
CMD_GET_OBJECT_PROP_DESC,
|
|
CMD_GET_OBJECT_PROP_VALUE,
|
|
};
|
|
static const uint16_t fmt[] = {
|
|
FMT_UNDEFINED_OBJECT,
|
|
FMT_ASSOCIATION,
|
|
};
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
|
|
trace_usb_mtp_op_get_device_info(s->dev.addr);
|
|
|
|
usb_mtp_add_u16(d, 100);
|
|
usb_mtp_add_u32(d, 0x00000006);
|
|
usb_mtp_add_u16(d, 0x0064);
|
|
usb_mtp_add_wstr(d, L"");
|
|
usb_mtp_add_u16(d, 0x0000);
|
|
|
|
usb_mtp_add_u16_array(d, ARRAY_SIZE(ops), ops);
|
|
usb_mtp_add_u16_array(d, 0, NULL);
|
|
usb_mtp_add_u16_array(d, 0, NULL);
|
|
usb_mtp_add_u16_array(d, 0, NULL);
|
|
usb_mtp_add_u16_array(d, ARRAY_SIZE(fmt), fmt);
|
|
|
|
usb_mtp_add_wstr(d, L"" MTP_MANUFACTURER);
|
|
usb_mtp_add_wstr(d, L"" MTP_PRODUCT);
|
|
usb_mtp_add_wstr(d, L"0.1");
|
|
usb_mtp_add_wstr(d, L"0123456789abcdef0123456789abcdef");
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_storage_ids(MTPState *s, MTPControl *c)
|
|
{
|
|
static const uint32_t ids[] = {
|
|
QEMU_STORAGE_ID,
|
|
};
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
|
|
trace_usb_mtp_op_get_storage_ids(s->dev.addr);
|
|
|
|
usb_mtp_add_u32_array(d, ARRAY_SIZE(ids), ids);
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_storage_info(MTPState *s, MTPControl *c)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
struct statvfs buf;
|
|
int rc;
|
|
|
|
trace_usb_mtp_op_get_storage_info(s->dev.addr);
|
|
|
|
if (FLAG_SET(s, MTP_FLAG_WRITABLE)) {
|
|
usb_mtp_add_u16(d, 0x0003);
|
|
usb_mtp_add_u16(d, 0x0002);
|
|
usb_mtp_add_u16(d, 0x0000);
|
|
} else {
|
|
usb_mtp_add_u16(d, 0x0001);
|
|
usb_mtp_add_u16(d, 0x0002);
|
|
usb_mtp_add_u16(d, 0x0001);
|
|
}
|
|
|
|
rc = statvfs(s->root, &buf);
|
|
if (rc == 0) {
|
|
usb_mtp_add_u64(d, (uint64_t)buf.f_frsize * buf.f_blocks);
|
|
usb_mtp_add_u64(d, (uint64_t)buf.f_bavail * buf.f_blocks);
|
|
usb_mtp_add_u32(d, buf.f_ffree);
|
|
} else {
|
|
usb_mtp_add_u64(d, 0xffffffff);
|
|
usb_mtp_add_u64(d, 0xffffffff);
|
|
usb_mtp_add_u32(d, 0xffffffff);
|
|
}
|
|
|
|
usb_mtp_add_str(d, s->desc);
|
|
usb_mtp_add_wstr(d, L"123456789abcdef");
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object_handles(MTPState *s, MTPControl *c,
|
|
MTPObject *o)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
uint32_t i = 0, handles[o->nchildren];
|
|
MTPObject *iter;
|
|
|
|
trace_usb_mtp_op_get_object_handles(s->dev.addr, o->handle, o->path);
|
|
|
|
QLIST_FOREACH(iter, &o->children, list) {
|
|
handles[i++] = iter->handle;
|
|
}
|
|
assert(i == o->nchildren);
|
|
usb_mtp_add_u32_array(d, o->nchildren, handles);
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object_info(MTPState *s, MTPControl *c,
|
|
MTPObject *o)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
|
|
trace_usb_mtp_op_get_object_info(s->dev.addr, o->handle, o->path);
|
|
|
|
usb_mtp_add_u32(d, QEMU_STORAGE_ID);
|
|
usb_mtp_add_u16(d, o->format);
|
|
usb_mtp_add_u16(d, 0);
|
|
|
|
if (o->stat.st_size > 0xFFFFFFFF) {
|
|
usb_mtp_add_u32(d, 0xFFFFFFFF);
|
|
} else {
|
|
usb_mtp_add_u32(d, o->stat.st_size);
|
|
}
|
|
|
|
usb_mtp_add_u16(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
|
|
if (o->parent) {
|
|
usb_mtp_add_u32(d, o->parent->handle);
|
|
} else {
|
|
usb_mtp_add_u32(d, 0);
|
|
}
|
|
if (o->format == FMT_ASSOCIATION) {
|
|
usb_mtp_add_u16(d, 0x0001);
|
|
usb_mtp_add_u32(d, 0x00000001);
|
|
usb_mtp_add_u32(d, 0);
|
|
} else {
|
|
usb_mtp_add_u16(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
usb_mtp_add_u32(d, 0);
|
|
}
|
|
|
|
usb_mtp_add_str(d, o->name);
|
|
usb_mtp_add_time(d, o->stat.st_ctime);
|
|
usb_mtp_add_time(d, o->stat.st_mtime);
|
|
usb_mtp_add_wstr(d, L"");
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object(MTPState *s, MTPControl *c,
|
|
MTPObject *o)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
|
|
trace_usb_mtp_op_get_object(s->dev.addr, o->handle, o->path);
|
|
|
|
d->fd = open(o->path, O_RDONLY);
|
|
if (d->fd == -1) {
|
|
usb_mtp_data_free(d);
|
|
return NULL;
|
|
}
|
|
d->length = o->stat.st_size;
|
|
d->alloc = 512;
|
|
d->data = g_malloc(d->alloc);
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_partial_object(MTPState *s, MTPControl *c,
|
|
MTPObject *o)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
off_t offset;
|
|
|
|
trace_usb_mtp_op_get_partial_object(s->dev.addr, o->handle, o->path,
|
|
c->argv[1], c->argv[2]);
|
|
|
|
d->fd = open(o->path, O_RDONLY);
|
|
if (d->fd == -1) {
|
|
usb_mtp_data_free(d);
|
|
return NULL;
|
|
}
|
|
|
|
offset = c->argv[1];
|
|
if (offset > o->stat.st_size) {
|
|
offset = o->stat.st_size;
|
|
}
|
|
if (lseek(d->fd, offset, SEEK_SET) < 0) {
|
|
usb_mtp_data_free(d);
|
|
return NULL;
|
|
}
|
|
|
|
d->length = c->argv[2];
|
|
if (d->length > o->stat.st_size - offset) {
|
|
d->length = o->stat.st_size - offset;
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object_props_supported(MTPState *s, MTPControl *c)
|
|
{
|
|
static const uint16_t props[] = {
|
|
PROP_STORAGE_ID,
|
|
PROP_OBJECT_FORMAT,
|
|
PROP_OBJECT_COMPRESSED_SIZE,
|
|
PROP_PARENT_OBJECT,
|
|
PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER,
|
|
PROP_NAME,
|
|
};
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
usb_mtp_add_u16_array(d, ARRAY_SIZE(props), props);
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object_prop_desc(MTPState *s, MTPControl *c)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
switch (c->argv[0]) {
|
|
case PROP_STORAGE_ID:
|
|
usb_mtp_add_u16(d, PROP_STORAGE_ID);
|
|
usb_mtp_add_u16(d, DATA_TYPE_UINT32);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
case PROP_OBJECT_FORMAT:
|
|
usb_mtp_add_u16(d, PROP_OBJECT_FORMAT);
|
|
usb_mtp_add_u16(d, DATA_TYPE_UINT16);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u16(d, 0x0000);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
case PROP_OBJECT_COMPRESSED_SIZE:
|
|
usb_mtp_add_u16(d, PROP_OBJECT_COMPRESSED_SIZE);
|
|
usb_mtp_add_u16(d, DATA_TYPE_UINT64);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u64(d, 0x0000000000000000);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
case PROP_PARENT_OBJECT:
|
|
usb_mtp_add_u16(d, PROP_PARENT_OBJECT);
|
|
usb_mtp_add_u16(d, DATA_TYPE_UINT32);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
|
|
usb_mtp_add_u16(d, PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER);
|
|
usb_mtp_add_u16(d, DATA_TYPE_UINT128);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u64(d, 0x0000000000000000);
|
|
usb_mtp_add_u64(d, 0x0000000000000000);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
case PROP_NAME:
|
|
usb_mtp_add_u16(d, PROP_NAME);
|
|
usb_mtp_add_u16(d, DATA_TYPE_STRING);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
usb_mtp_add_u8(d, 0x00);
|
|
break;
|
|
default:
|
|
usb_mtp_data_free(d);
|
|
return NULL;
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
static MTPData *usb_mtp_get_object_prop_value(MTPState *s, MTPControl *c,
|
|
MTPObject *o)
|
|
{
|
|
MTPData *d = usb_mtp_data_alloc(c);
|
|
switch (c->argv[1]) {
|
|
case PROP_STORAGE_ID:
|
|
usb_mtp_add_u32(d, QEMU_STORAGE_ID);
|
|
break;
|
|
case PROP_OBJECT_FORMAT:
|
|
usb_mtp_add_u16(d, o->format);
|
|
break;
|
|
case PROP_OBJECT_COMPRESSED_SIZE:
|
|
usb_mtp_add_u64(d, o->stat.st_size);
|
|
break;
|
|
case PROP_PARENT_OBJECT:
|
|
if (o->parent == NULL) {
|
|
usb_mtp_add_u32(d, 0x00000000);
|
|
} else {
|
|
usb_mtp_add_u32(d, o->parent->handle);
|
|
}
|
|
break;
|
|
case PROP_PERSISTENT_UNIQUE_OBJECT_IDENTIFIER:
|
|
/* Should be persistent between sessions,
|
|
* but using our objedt ID is "good enough"
|
|
* for now */
|
|
usb_mtp_add_u64(d, 0x0000000000000000);
|
|
usb_mtp_add_u64(d, o->handle);
|
|
break;
|
|
case PROP_NAME:
|
|
usb_mtp_add_str(d, o->name);
|
|
break;
|
|
default:
|
|
usb_mtp_data_free(d);
|
|
return NULL;
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
static void usb_mtp_command(MTPState *s, MTPControl *c)
|
|
{
|
|
MTPData *data_in = NULL;
|
|
MTPObject *o;
|
|
uint32_t nres = 0, res0 = 0;
|
|
|
|
/* sanity checks */
|
|
if (c->code >= CMD_CLOSE_SESSION && s->session == 0) {
|
|
usb_mtp_queue_result(s, RES_SESSION_NOT_OPEN,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
|
|
/* process commands */
|
|
switch (c->code) {
|
|
case CMD_GET_DEVICE_INFO:
|
|
data_in = usb_mtp_get_device_info(s, c);
|
|
break;
|
|
case CMD_OPEN_SESSION:
|
|
if (s->session) {
|
|
usb_mtp_queue_result(s, RES_SESSION_ALREADY_OPEN,
|
|
c->trans, 1, s->session, 0);
|
|
return;
|
|
}
|
|
if (c->argv[0] == 0) {
|
|
usb_mtp_queue_result(s, RES_INVALID_PARAMETER,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
trace_usb_mtp_op_open_session(s->dev.addr);
|
|
s->session = c->argv[0];
|
|
usb_mtp_object_alloc(s, s->next_handle++, NULL, s->root);
|
|
#ifdef CONFIG_INOTIFY1
|
|
if (usb_mtp_inotify_init(s)) {
|
|
fprintf(stderr, "usb-mtp: file monitoring init failed\n");
|
|
}
|
|
#endif
|
|
break;
|
|
case CMD_CLOSE_SESSION:
|
|
trace_usb_mtp_op_close_session(s->dev.addr);
|
|
s->session = 0;
|
|
s->next_handle = 0;
|
|
#ifdef CONFIG_INOTIFY1
|
|
usb_mtp_inotify_cleanup(s);
|
|
#endif
|
|
usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects));
|
|
assert(QTAILQ_EMPTY(&s->objects));
|
|
break;
|
|
case CMD_GET_STORAGE_IDS:
|
|
data_in = usb_mtp_get_storage_ids(s, c);
|
|
break;
|
|
case CMD_GET_STORAGE_INFO:
|
|
if (c->argv[0] != QEMU_STORAGE_ID &&
|
|
c->argv[0] != 0xffffffff) {
|
|
usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_storage_info(s, c);
|
|
break;
|
|
case CMD_GET_NUM_OBJECTS:
|
|
case CMD_GET_OBJECT_HANDLES:
|
|
if (c->argv[0] != QEMU_STORAGE_ID &&
|
|
c->argv[0] != 0xffffffff) {
|
|
usb_mtp_queue_result(s, RES_INVALID_STORAGE_ID,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
if (c->argv[1] != 0x00000000) {
|
|
usb_mtp_queue_result(s, RES_SPEC_BY_FORMAT_UNSUPPORTED,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
if (c->argv[2] == 0x00000000 ||
|
|
c->argv[2] == 0xffffffff) {
|
|
o = QTAILQ_FIRST(&s->objects);
|
|
} else {
|
|
o = usb_mtp_object_lookup(s, c->argv[2]);
|
|
}
|
|
if (o == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
if (o->format != FMT_ASSOCIATION) {
|
|
usb_mtp_queue_result(s, RES_INVALID_PARENT_OBJECT,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
usb_mtp_object_readdir(s, o);
|
|
if (c->code == CMD_GET_NUM_OBJECTS) {
|
|
trace_usb_mtp_op_get_num_objects(s->dev.addr, o->handle, o->path);
|
|
nres = 1;
|
|
res0 = o->nchildren;
|
|
} else {
|
|
data_in = usb_mtp_get_object_handles(s, c, o);
|
|
}
|
|
break;
|
|
case CMD_GET_OBJECT_INFO:
|
|
o = usb_mtp_object_lookup(s, c->argv[0]);
|
|
if (o == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_object_info(s, c, o);
|
|
break;
|
|
case CMD_GET_OBJECT:
|
|
o = usb_mtp_object_lookup(s, c->argv[0]);
|
|
if (o == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
if (o->format == FMT_ASSOCIATION) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_object(s, c, o);
|
|
if (data_in == NULL) {
|
|
usb_mtp_queue_result(s, RES_GENERAL_ERROR,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
break;
|
|
case CMD_GET_PARTIAL_OBJECT:
|
|
o = usb_mtp_object_lookup(s, c->argv[0]);
|
|
if (o == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
if (o->format == FMT_ASSOCIATION) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_partial_object(s, c, o);
|
|
if (data_in == NULL) {
|
|
usb_mtp_queue_result(s, RES_GENERAL_ERROR,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
nres = 1;
|
|
res0 = data_in->length;
|
|
break;
|
|
case CMD_GET_OBJECT_PROPS_SUPPORTED:
|
|
if (c->argv[0] != FMT_UNDEFINED_OBJECT &&
|
|
c->argv[0] != FMT_ASSOCIATION) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_object_props_supported(s, c);
|
|
break;
|
|
case CMD_GET_OBJECT_PROP_DESC:
|
|
if (c->argv[1] != FMT_UNDEFINED_OBJECT &&
|
|
c->argv[1] != FMT_ASSOCIATION) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_FORMAT_CODE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_object_prop_desc(s, c);
|
|
if (data_in == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
break;
|
|
case CMD_GET_OBJECT_PROP_VALUE:
|
|
o = usb_mtp_object_lookup(s, c->argv[0]);
|
|
if (o == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
data_in = usb_mtp_get_object_prop_value(s, c, o);
|
|
if (data_in == NULL) {
|
|
usb_mtp_queue_result(s, RES_INVALID_OBJECT_PROP_CODE,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
trace_usb_mtp_op_unknown(s->dev.addr, c->code);
|
|
usb_mtp_queue_result(s, RES_OPERATION_NOT_SUPPORTED,
|
|
c->trans, 0, 0, 0);
|
|
return;
|
|
}
|
|
|
|
/* return results on success */
|
|
if (data_in) {
|
|
assert(s->data_in == NULL);
|
|
s->data_in = data_in;
|
|
}
|
|
usb_mtp_queue_result(s, RES_OK, c->trans, nres, res0, 0);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static void usb_mtp_handle_reset(USBDevice *dev)
|
|
{
|
|
MTPState *s = USB_MTP(dev);
|
|
|
|
trace_usb_mtp_reset(s->dev.addr);
|
|
|
|
#ifdef CONFIG_INOTIFY1
|
|
usb_mtp_inotify_cleanup(s);
|
|
#endif
|
|
usb_mtp_object_free(s, QTAILQ_FIRST(&s->objects));
|
|
s->session = 0;
|
|
usb_mtp_data_free(s->data_in);
|
|
s->data_in = NULL;
|
|
usb_mtp_data_free(s->data_out);
|
|
s->data_out = NULL;
|
|
g_free(s->result);
|
|
s->result = NULL;
|
|
}
|
|
|
|
static void usb_mtp_handle_control(USBDevice *dev, USBPacket *p,
|
|
int request, int value, int index,
|
|
int length, uint8_t *data)
|
|
{
|
|
int ret;
|
|
|
|
ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
|
|
if (ret >= 0) {
|
|
return;
|
|
}
|
|
|
|
trace_usb_mtp_stall(dev->addr, "unknown control request");
|
|
p->status = USB_RET_STALL;
|
|
}
|
|
|
|
static void usb_mtp_cancel_packet(USBDevice *dev, USBPacket *p)
|
|
{
|
|
/* we don't use async packets, so this should never be called */
|
|
fprintf(stderr, "%s\n", __func__);
|
|
}
|
|
|
|
static void usb_mtp_handle_data(USBDevice *dev, USBPacket *p)
|
|
{
|
|
MTPState *s = USB_MTP(dev);
|
|
MTPControl cmd;
|
|
mtp_container container;
|
|
uint32_t params[5];
|
|
int i, rc;
|
|
|
|
switch (p->ep->nr) {
|
|
case EP_DATA_IN:
|
|
if (s->data_out != NULL) {
|
|
/* guest bug */
|
|
trace_usb_mtp_stall(s->dev.addr, "awaiting data-out");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
if (p->iov.size < sizeof(container)) {
|
|
trace_usb_mtp_stall(s->dev.addr, "packet too small");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
if (s->data_in != NULL) {
|
|
MTPData *d = s->data_in;
|
|
uint64_t dlen = d->length - d->offset;
|
|
if (d->first) {
|
|
trace_usb_mtp_data_in(s->dev.addr, d->trans, d->length);
|
|
if (d->length + sizeof(container) > 0xFFFFFFFF) {
|
|
container.length = cpu_to_le32(0xFFFFFFFF);
|
|
} else {
|
|
container.length =
|
|
cpu_to_le32(d->length + sizeof(container));
|
|
}
|
|
container.type = cpu_to_le16(TYPE_DATA);
|
|
container.code = cpu_to_le16(d->code);
|
|
container.trans = cpu_to_le32(d->trans);
|
|
usb_packet_copy(p, &container, sizeof(container));
|
|
d->first = false;
|
|
if (dlen > p->iov.size - sizeof(container)) {
|
|
dlen = p->iov.size - sizeof(container);
|
|
}
|
|
} else {
|
|
if (dlen > p->iov.size) {
|
|
dlen = p->iov.size;
|
|
}
|
|
}
|
|
if (d->fd == -1) {
|
|
usb_packet_copy(p, d->data + d->offset, dlen);
|
|
} else {
|
|
if (d->alloc < p->iov.size) {
|
|
d->alloc = p->iov.size;
|
|
d->data = g_realloc(d->data, d->alloc);
|
|
}
|
|
rc = read(d->fd, d->data, dlen);
|
|
if (rc != dlen) {
|
|
memset(d->data, 0, dlen);
|
|
s->result->code = RES_INCOMPLETE_TRANSFER;
|
|
}
|
|
usb_packet_copy(p, d->data, dlen);
|
|
}
|
|
d->offset += dlen;
|
|
if (d->offset == d->length) {
|
|
usb_mtp_data_free(s->data_in);
|
|
s->data_in = NULL;
|
|
}
|
|
} else if (s->result != NULL) {
|
|
MTPControl *r = s->result;
|
|
int length = sizeof(container) + r->argc * sizeof(uint32_t);
|
|
if (r->code == RES_OK) {
|
|
trace_usb_mtp_success(s->dev.addr, r->trans,
|
|
(r->argc > 0) ? r->argv[0] : 0,
|
|
(r->argc > 1) ? r->argv[1] : 0);
|
|
} else {
|
|
trace_usb_mtp_error(s->dev.addr, r->code, r->trans,
|
|
(r->argc > 0) ? r->argv[0] : 0,
|
|
(r->argc > 1) ? r->argv[1] : 0);
|
|
}
|
|
container.length = cpu_to_le32(length);
|
|
container.type = cpu_to_le16(TYPE_RESPONSE);
|
|
container.code = cpu_to_le16(r->code);
|
|
container.trans = cpu_to_le32(r->trans);
|
|
for (i = 0; i < r->argc; i++) {
|
|
params[i] = cpu_to_le32(r->argv[i]);
|
|
}
|
|
usb_packet_copy(p, &container, sizeof(container));
|
|
usb_packet_copy(p, ¶ms, length - sizeof(container));
|
|
g_free(s->result);
|
|
s->result = NULL;
|
|
}
|
|
break;
|
|
case EP_DATA_OUT:
|
|
if (p->iov.size < sizeof(container)) {
|
|
trace_usb_mtp_stall(s->dev.addr, "packet too small");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
usb_packet_copy(p, &container, sizeof(container));
|
|
switch (le16_to_cpu(container.type)) {
|
|
case TYPE_COMMAND:
|
|
if (s->data_in || s->data_out || s->result) {
|
|
trace_usb_mtp_stall(s->dev.addr, "transaction inflight");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
cmd.code = le16_to_cpu(container.code);
|
|
cmd.argc = (le32_to_cpu(container.length) - sizeof(container))
|
|
/ sizeof(uint32_t);
|
|
cmd.trans = le32_to_cpu(container.trans);
|
|
if (cmd.argc > ARRAY_SIZE(cmd.argv)) {
|
|
cmd.argc = ARRAY_SIZE(cmd.argv);
|
|
}
|
|
if (p->iov.size < sizeof(container) + cmd.argc * sizeof(uint32_t)) {
|
|
trace_usb_mtp_stall(s->dev.addr, "packet too small");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
usb_packet_copy(p, ¶ms, cmd.argc * sizeof(uint32_t));
|
|
for (i = 0; i < cmd.argc; i++) {
|
|
cmd.argv[i] = le32_to_cpu(params[i]);
|
|
}
|
|
trace_usb_mtp_command(s->dev.addr, cmd.code, cmd.trans,
|
|
(cmd.argc > 0) ? cmd.argv[0] : 0,
|
|
(cmd.argc > 1) ? cmd.argv[1] : 0,
|
|
(cmd.argc > 2) ? cmd.argv[2] : 0,
|
|
(cmd.argc > 3) ? cmd.argv[3] : 0,
|
|
(cmd.argc > 4) ? cmd.argv[4] : 0);
|
|
usb_mtp_command(s, &cmd);
|
|
break;
|
|
default:
|
|
/* not needed as long as the mtp device is read-only */
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
break;
|
|
case EP_EVENT:
|
|
#ifdef CONFIG_INOTIFY1
|
|
if (!QTAILQ_EMPTY(&s->events)) {
|
|
struct MTPMonEntry *e = QTAILQ_LAST(&s->events, events);
|
|
uint32_t handle;
|
|
int len = sizeof(container) + sizeof(uint32_t);
|
|
|
|
if (p->iov.size < len) {
|
|
trace_usb_mtp_stall(s->dev.addr,
|
|
"packet too small to send event");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
|
|
QTAILQ_REMOVE(&s->events, e, next);
|
|
container.length = cpu_to_le32(len);
|
|
container.type = cpu_to_le32(TYPE_EVENT);
|
|
container.code = cpu_to_le16(e->event);
|
|
container.trans = 0; /* no trans specific events */
|
|
handle = cpu_to_le32(e->handle);
|
|
usb_packet_copy(p, &container, sizeof(container));
|
|
usb_packet_copy(p, &handle, sizeof(uint32_t));
|
|
g_free(e);
|
|
return;
|
|
}
|
|
#endif
|
|
p->status = USB_RET_NAK;
|
|
return;
|
|
default:
|
|
trace_usb_mtp_stall(s->dev.addr, "invalid endpoint");
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
|
|
if (p->actual_length == 0) {
|
|
trace_usb_mtp_nak(s->dev.addr, p->ep->nr);
|
|
p->status = USB_RET_NAK;
|
|
return;
|
|
} else {
|
|
trace_usb_mtp_xfer(s->dev.addr, p->ep->nr, p->actual_length,
|
|
p->iov.size);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void usb_mtp_realize(USBDevice *dev, Error **errp)
|
|
{
|
|
MTPState *s = USB_MTP(dev);
|
|
|
|
usb_desc_create_serial(dev);
|
|
usb_desc_init(dev);
|
|
QTAILQ_INIT(&s->objects);
|
|
if (s->desc == NULL) {
|
|
if (s->root == NULL) {
|
|
error_setg(errp, "usb-mtp: x-root property must be configured");
|
|
return;
|
|
}
|
|
s->desc = strrchr(s->root, '/');
|
|
if (s->desc && s->desc[0]) {
|
|
s->desc = g_strdup(s->desc + 1);
|
|
} else {
|
|
s->desc = g_strdup("none");
|
|
}
|
|
}
|
|
}
|
|
|
|
static const VMStateDescription vmstate_usb_mtp = {
|
|
.name = "usb-mtp",
|
|
.unmigratable = 1,
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_USB_DEVICE(dev, MTPState),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static Property mtp_properties[] = {
|
|
DEFINE_PROP_STRING("x-root", MTPState, root),
|
|
DEFINE_PROP_STRING("desc", MTPState, desc),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void usb_mtp_class_initfn(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
|
|
|
|
uc->realize = usb_mtp_realize;
|
|
uc->product_desc = "QEMU USB MTP";
|
|
uc->usb_desc = &desc;
|
|
uc->cancel_packet = usb_mtp_cancel_packet;
|
|
uc->handle_attach = usb_desc_attach;
|
|
uc->handle_reset = usb_mtp_handle_reset;
|
|
uc->handle_control = usb_mtp_handle_control;
|
|
uc->handle_data = usb_mtp_handle_data;
|
|
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
|
|
dc->desc = "USB Media Transfer Protocol device";
|
|
dc->fw_name = "mtp";
|
|
dc->vmsd = &vmstate_usb_mtp;
|
|
dc->props = mtp_properties;
|
|
}
|
|
|
|
static TypeInfo mtp_info = {
|
|
.name = TYPE_USB_MTP,
|
|
.parent = TYPE_USB_DEVICE,
|
|
.instance_size = sizeof(MTPState),
|
|
.class_init = usb_mtp_class_initfn,
|
|
};
|
|
|
|
static void usb_mtp_register_types(void)
|
|
{
|
|
type_register_static(&mtp_info);
|
|
}
|
|
|
|
type_init(usb_mtp_register_types)
|