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-rw-r--r--qemu/hw/usb/dev-mtp.c1414
1 files changed, 0 insertions, 1414 deletions
diff --git a/qemu/hw/usb/dev-mtp.c b/qemu/hw/usb/dev-mtp.c
deleted file mode 100644
index bda84a64b..000000000
--- a/qemu/hw/usb/dev-mtp.c
+++ /dev/null
@@ -1,1414 +0,0 @@
-/*
- * Media Transfer Protocol implementation, backed by host filesystem.
- *
- * Copyright Red Hat, Inc 2014
- *
- * Author:
- * Gerd Hoffmann <kraxel@redhat.com>
- *
- * This code is licensed under the GPL v2 or later.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include <wchar.h>
-#include <dirent.h>
-
-#include <sys/statvfs.h>
-#ifdef CONFIG_INOTIFY1
-#include <sys/inotify.h>
-#include "qapi/error.h"
-#include "qemu/main-loop.h"
-#endif
-
-#include "qemu-common.h"
-#include "qemu/iov.h"
-#include "trace.h"
-#include "hw/usb.h"
-#include "hw/usb/desc.h"
-
-/* ----------------------------------------------------------------------- */
-
-enum mtp_container_type {
- TYPE_COMMAND = 1,
- TYPE_DATA = 2,
- TYPE_RESPONSE = 3,
- TYPE_EVENT = 4,
-};
-
-enum mtp_code {
- /* command codes */
- CMD_GET_DEVICE_INFO = 0x1001,
- CMD_OPEN_SESSION = 0x1002,
- CMD_CLOSE_SESSION = 0x1003,
- CMD_GET_STORAGE_IDS = 0x1004,
- CMD_GET_STORAGE_INFO = 0x1005,
- CMD_GET_NUM_OBJECTS = 0x1006,
- CMD_GET_OBJECT_HANDLES = 0x1007,
- CMD_GET_OBJECT_INFO = 0x1008,
- CMD_GET_OBJECT = 0x1009,
- CMD_GET_PARTIAL_OBJECT = 0x101b,
-
- /* response codes */
- RES_OK = 0x2001,
- RES_GENERAL_ERROR = 0x2002,
- RES_SESSION_NOT_OPEN = 0x2003,
- RES_INVALID_TRANSACTION_ID = 0x2004,
- RES_OPERATION_NOT_SUPPORTED = 0x2005,
- RES_PARAMETER_NOT_SUPPORTED = 0x2006,
- RES_INCOMPLETE_TRANSFER = 0x2007,
- RES_INVALID_STORAGE_ID = 0x2008,
- RES_INVALID_OBJECT_HANDLE = 0x2009,
- RES_SPEC_BY_FORMAT_UNSUPPORTED = 0x2014,
- RES_INVALID_PARENT_OBJECT = 0x201a,
- RES_INVALID_PARAMETER = 0x201d,
- RES_SESSION_ALREADY_OPEN = 0x201e,
-
- /* format codes */
- FMT_UNDEFINED_OBJECT = 0x3000,
- FMT_ASSOCIATION = 0x3001,
-
- /* event codes */
- EVT_OBJ_ADDED = 0x4002,
- EVT_OBJ_REMOVED = 0x4003,
- EVT_OBJ_INFO_CHANGED = 0x4007,
-};
-
-typedef struct {
- uint32_t length;
- uint16_t type;
- uint16_t code;
- uint32_t trans;
-} QEMU_PACKED mtp_container;
-
-/* ----------------------------------------------------------------------- */
-
-typedef struct MTPState MTPState;
-typedef struct MTPControl MTPControl;
-typedef struct MTPData MTPData;
-typedef struct MTPObject MTPObject;
-
-enum {
- EP_DATA_IN = 1,
- EP_DATA_OUT,
- EP_EVENT,
-};
-
-#ifdef CONFIG_INOTIFY1
-typedef struct MTPMonEntry MTPMonEntry;
-
-struct MTPMonEntry {
- uint32_t event;
- uint32_t handle;
-
- QTAILQ_ENTRY(MTPMonEntry) next;
-};
-#endif
-
-struct MTPControl {
- uint16_t code;
- uint32_t trans;
- int argc;
- uint32_t argv[5];
-};
-
-struct MTPData {
- uint16_t code;
- uint32_t trans;
- uint32_t offset;
- uint32_t length;
- uint32_t alloc;
- uint8_t *data;
- bool first;
- int fd;
-};
-
-struct MTPObject {
- uint32_t handle;
- uint16_t format;
- char *name;
- char *path;
- struct stat stat;
-#ifdef CONFIG_INOTIFY1
- /* inotify watch cookie */
- int watchfd;
-#endif
- MTPObject *parent;
- uint32_t nchildren;
- QLIST_HEAD(, MTPObject) children;
- QLIST_ENTRY(MTPObject) list;
- bool have_children;
- QTAILQ_ENTRY(MTPObject) next;
-};
-
-struct MTPState {
- USBDevice dev;
- char *root;
- char *desc;
- uint32_t flags;
-
- MTPData *data_in;
- MTPData *data_out;
- MTPControl *result;
- uint32_t session;
- uint32_t next_handle;
-
- QTAILQ_HEAD(, MTPObject) objects;
-#ifdef CONFIG_INOTIFY1
- /* inotify descriptor */
- int inotifyfd;
- QTAILQ_HEAD(events, MTPMonEntry) events;
-#endif
-};
-
-#define TYPE_USB_MTP "usb-mtp"
-#define USB_MTP(obj) OBJECT_CHECK(MTPState, (obj), TYPE_USB_MTP)
-
-#define QEMU_STORAGE_ID 0x00010001
-
-#define MTP_FLAG_WRITABLE 0
-
-#define FLAG_SET(_mtp, _flag) ((_mtp)->flags & (1 << (_flag)))
-
-/* ----------------------------------------------------------------------- */
-
-#define MTP_MANUFACTURER "QEMU"
-#define MTP_PRODUCT "QEMU filesharing"
-
-enum {
- STR_MANUFACTURER = 1,
- STR_PRODUCT,
- STR_SERIALNUMBER,
- STR_MTP,
- STR_CONFIG_FULL,
- STR_CONFIG_HIGH,
- STR_CONFIG_SUPER,
-};
-
-static const USBDescStrings desc_strings = {
- [STR_MANUFACTURER] = MTP_MANUFACTURER,
- [STR_PRODUCT] = MTP_PRODUCT,
- [STR_SERIALNUMBER] = "34617",
- [STR_MTP] = "MTP",
- [STR_CONFIG_FULL] = "Full speed config (usb 1.1)",
- [STR_CONFIG_HIGH] = "High speed config (usb 2.0)",
- [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)",
-};
-
-static const USBDescIface desc_iface_full = {
- .bInterfaceNumber = 0,
- .bNumEndpoints = 3,
- .bInterfaceClass = USB_CLASS_STILL_IMAGE,
- .bInterfaceSubClass = 0x01,
- .bInterfaceProtocol = 0x01,
- .iInterface = STR_MTP,
- .eps = (USBDescEndpoint[]) {
- {
- .bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = 64,
- },{
- .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = 64,
- },{
- .bEndpointAddress = USB_DIR_IN | EP_EVENT,
- .bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = 64,
- .bInterval = 0x0a,
- },
- }
-};
-
-static const USBDescDevice desc_device_full = {
- .bcdUSB = 0x0200,
- .bMaxPacketSize0 = 8,
- .bNumConfigurations = 1,
- .confs = (USBDescConfig[]) {
- {
- .bNumInterfaces = 1,
- .bConfigurationValue = 1,
- .iConfiguration = STR_CONFIG_FULL,
- .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
- .bMaxPower = 2,
- .nif = 1,
- .ifs = &desc_iface_full,
- },
- },
-};
-
-static const USBDescIface desc_iface_high = {
- .bInterfaceNumber = 0,
- .bNumEndpoints = 3,
- .bInterfaceClass = USB_CLASS_STILL_IMAGE,
- .bInterfaceSubClass = 0x01,
- .bInterfaceProtocol = 0x01,
- .iInterface = STR_MTP,
- .eps = (USBDescEndpoint[]) {
- {
- .bEndpointAddress = USB_DIR_IN | EP_DATA_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = 512,
- },{
- .bEndpointAddress = USB_DIR_OUT | EP_DATA_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = 512,
- },{
- .bEndpointAddress = USB_DIR_IN | EP_EVENT,
- .bmAttributes = USB_ENDPOINT_XFER_INT,
- .wMaxPacketSize = 64,
- .bInterval = 0x0a,
- },
- }
-};
-
-static const USBDescDevice desc_device_high = {
- .bcdUSB = 0x0200,
- .bMaxPacketSize0 = 64,
- .bNumConfigurations = 1,
- .confs = (USBDescConfig[]) {
- {
- .bNumInterfaces = 1,
- .bConfigurationValue = 1,
- .iConfiguration = STR_CONFIG_HIGH,
- .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_WAKEUP,
- .bMaxPower = 2,
- .nif = 1,
- .ifs = &desc_iface_high,
- },
- },
-};
-
-static const USBDescMSOS desc_msos = {
- .CompatibleID = "MTP",
- .SelectiveSuspendEnabled = true,
-};
-
-static const USBDesc desc = {
- .id = {
- .idVendor = 0x46f4, /* CRC16() of "QEMU" */
- .idProduct = 0x0004,
- .bcdDevice = 0,
- .iManufacturer = STR_MANUFACTURER,
- .iProduct = STR_PRODUCT,
- .iSerialNumber = STR_SERIALNUMBER,
- },
- .full = &desc_device_full,
- .high = &desc_device_high,
- .str = desc_strings,
- .msos = &desc_msos,
-};
-
-/* ----------------------------------------------------------------------- */
-
-static MTPObject *usb_mtp_object_alloc(MTPState *s, uint32_t handle,
- MTPObject *parent, char *name)
-{
- MTPObject *o = g_new0(MTPObject, 1);
-
- if (name[0] == '.') {
- goto ignore;
- }
-
- o->handle = handle;
- o->parent = parent;
- o->name = g_strdup(name);
- if (parent == NULL) {
- o->path = g_strdup(name);
- } else {
- o->path = g_strdup_printf("%s/%s", parent->path, name);
- }
-
- if (lstat(o->path, &o->stat) != 0) {
- goto ignore;
- }
- if (S_ISREG(o->stat.st_mode)) {
- o->format = FMT_UNDEFINED_OBJECT;
- } else if (S_ISDIR(o->stat.st_mode)) {
- o->format = FMT_ASSOCIATION;
- } else {
- goto ignore;
- }
-
- if (access(o->path, R_OK) != 0) {
- goto ignore;
- }
-
- trace_usb_mtp_object_alloc(s->dev.addr, o->handle, o->path);
-
- QTAILQ_INSERT_TAIL(&s->objects, o, next);
- return o;
-
-ignore:
- g_free(o->name);
- g_free(o->path);
- g_free(o);
- return NULL;
-}
-
-static void usb_mtp_object_free(MTPState *s, MTPObject *o)
-{
- MTPObject *iter;
-
- if (!o) {
- return;
- }
-
- trace_usb_mtp_object_free(s->dev.addr, o->handle, o->path);
-
- QTAILQ_REMOVE(&s->objects, o, next);
- if (o->parent) {
- QLIST_REMOVE(o, list);
- o->parent->nchildren--;
- }
-
- while (!QLIST_EMPTY(&o->children)) {
- iter = QLIST_FIRST(&o->children);
- usb_mtp_object_free(s, iter);
- }
- g_free(o->name);
- g_free(o->path);
- g_free(o);
-}
-
-static MTPObject *usb_mtp_object_lookup(MTPState *s, uint32_t handle)
-{
- MTPObject *o;
-
- QTAILQ_FOREACH(o, &s->objects, next) {
- if (o->handle == handle) {
- return o;
- }
- }
- return NULL;
-}
-
-static MTPObject *usb_mtp_add_child(MTPState *s, MTPObject *o,
- char *name)
-{
- MTPObject *child =
- usb_mtp_object_alloc(s, s->next_handle++, o, name);
-
- if (child) {
- trace_usb_mtp_add_child(s->dev.addr, child->handle, child->path);
- QLIST_INSERT_HEAD(&o->children, child, list);
- o->nchildren++;
-
- if (child->format == FMT_ASSOCIATION) {
- QLIST_INIT(&child->children);
- }
- }
-
- return child;
-}
-
-#ifdef CONFIG_INOTIFY1
-static MTPObject *usb_mtp_object_lookup_name(MTPObject *parent,
- char *name, int len)
-{
- MTPObject *iter;
-
- QLIST_FOREACH(iter, &parent->children, list) {
- if (strncmp(iter->name, name, len) == 0) {
- return iter;
- }
- }
-
- return NULL;
-}
-
-static MTPObject *usb_mtp_object_lookup_wd(MTPState *s, int wd)
-{
- MTPObject *iter;
-
- QTAILQ_FOREACH(iter, &s->objects, next) {
- if (iter->watchfd == wd) {
- return iter;
- }
- }
-
- return NULL;
-}
-
-static void inotify_watchfn(void *arg)
-{
- MTPState *s = arg;
- ssize_t bytes;
- /* From the man page: atleast one event can be read */
- int pos;
- char buf[sizeof(struct inotify_event) + NAME_MAX + 1];
-
- for (;;) {
- bytes = read(s->inotifyfd, buf, sizeof(buf));
- pos = 0;
-
- if (bytes <= 0) {
- /* Better luck next time */
- return;
- }
-
- /*
- * TODO: Ignore initiator initiated events.
- * For now we are good because the store is RO
- */
- while (bytes > 0) {
- char *p = buf + pos;
- struct inotify_event *event = (struct inotify_event *)p;
- int watchfd = 0;
- uint32_t mask = event->mask & (IN_CREATE | IN_DELETE |
- IN_MODIFY | IN_IGNORED);
- MTPObject *parent = usb_mtp_object_lookup_wd(s, event->wd);
- MTPMonEntry *entry = NULL;
- MTPObject *o;
-
- pos = pos + sizeof(struct inotify_event) + event->len;
- bytes = bytes - pos;
-
- if (!parent) {
- continue;
- }
-
- switch (mask) {
- case IN_CREATE:
- if (usb_mtp_object_lookup_name
- (parent, event->name, event->len)) {
- /* Duplicate create event */
- continue;
- }
- entry = g_new0(MTPMonEntry, 1);
- entry->handle = s->next_handle;
- entry->event = EVT_OBJ_ADDED;
- o = usb_mtp_add_child(s, parent, event->name);
- if (!o) {
- g_free(entry);
- continue;
- }
- o->watchfd = watchfd;
- trace_usb_mtp_inotify_event(s->dev.addr, event->name,
- event->mask, "Obj Added");
- break;
-
- case IN_DELETE:
- /*
- * The kernel issues a IN_IGNORED event
- * when a dir containing a watchpoint is
- * deleted, so we don't have to delete the
- * watchpoint
- */
- o = usb_mtp_object_lookup_name(parent, event->name, event->len);
- if (!o) {
- continue;
- }
- entry = g_new0(MTPMonEntry, 1);
- entry->handle = o->handle;
- entry->event = EVT_OBJ_REMOVED;
- trace_usb_mtp_inotify_event(s->dev.addr, o->path,
- event->mask, "Obj Deleted");
- usb_mtp_object_free(s, o);
- break;
-
- case IN_MODIFY:
- o = usb_mtp_object_lookup_name(parent, event->name, event->len);
- if (!o) {
- continue;
- }
- entry = g_new0(MTPMonEntry, 1);
- entry->handle = o->handle;
- entry->event = EVT_OBJ_INFO_CHANGED;
- trace_usb_mtp_inotify_event(s->dev.addr, o->path,
- event->mask, "Obj Modified");
- break;
-
- 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,
- };
- 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, 0xffffffff);
- usb_mtp_add_u16(d, 0x0101);
- 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);
- 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 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;
- 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;
- int dlen = d->length - d->offset;
- if (d->first) {
- trace_usb_mtp_data_in(s->dev.addr, d->trans, d->length);
- 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, &params, 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, &params, 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;
- 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)