diff options
author | 2017-04-25 03:31:15 -0700 | |
---|---|---|
committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/usb/dev-mtp.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/usb/dev-mtp.c')
-rw-r--r-- | qemu/hw/usb/dev-mtp.c | 1414 |
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, ¶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; - 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) |