| /* |
| * USB redirector usb-guest |
| * |
| * Copyright (c) 2011-2012 Red Hat, Inc. |
| * |
| * Red Hat Authors: |
| * Hans de Goede <hdegoede@redhat.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu-common.h" |
| #include "qemu/units.h" |
| #include "qapi/error.h" |
| #include "qemu/timer.h" |
| #include "sysemu/runstate.h" |
| #include "sysemu/sysemu.h" |
| #include "qapi/qmp/qerror.h" |
| #include "qemu/error-report.h" |
| #include "qemu/iov.h" |
| #include "qemu/module.h" |
| #include "chardev/char-fe.h" |
| |
| #include <usbredirparser.h> |
| #include <usbredirfilter.h> |
| |
| #include "hw/qdev-properties.h" |
| #include "hw/qdev-properties-system.h" |
| #include "hw/usb.h" |
| #include "migration/qemu-file-types.h" |
| #include "migration/vmstate.h" |
| #include "qom/object.h" |
| |
| /* ERROR is defined below. Remove any previous definition. */ |
| #undef ERROR |
| |
| #define MAX_ENDPOINTS 32 |
| #define NO_INTERFACE_INFO 255 /* Valid interface_count always <= 32 */ |
| #define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f)) |
| #define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f)) |
| #define USBEP2I(usb_ep) (((usb_ep)->pid == USB_TOKEN_IN) ? \ |
| ((usb_ep)->nr | 0x10) : ((usb_ep)->nr)) |
| #define I2USBEP(d, i) (usb_ep_get(&(d)->dev, \ |
| ((i) & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT, \ |
| (i) & 0x0f)) |
| |
| #ifndef USBREDIR_VERSION /* This is not defined in older usbredir versions */ |
| #define USBREDIR_VERSION 0 |
| #endif |
| |
| typedef struct USBRedirDevice USBRedirDevice; |
| |
| /* Struct to hold buffered packets */ |
| struct buf_packet { |
| uint8_t *data; |
| void *free_on_destroy; |
| uint16_t len; |
| uint16_t offset; |
| uint8_t status; |
| QTAILQ_ENTRY(buf_packet)next; |
| }; |
| |
| struct endp_data { |
| USBRedirDevice *dev; |
| uint8_t type; |
| uint8_t interval; |
| uint8_t interface; /* bInterfaceNumber this ep belongs to */ |
| uint16_t max_packet_size; /* In bytes, not wMaxPacketSize format !! */ |
| uint32_t max_streams; |
| uint8_t iso_started; |
| uint8_t iso_error; /* For reporting iso errors to the HC */ |
| uint8_t interrupt_started; |
| uint8_t interrupt_error; |
| uint8_t bulk_receiving_enabled; |
| uint8_t bulk_receiving_started; |
| uint8_t bufpq_prefilled; |
| uint8_t bufpq_dropping_packets; |
| QTAILQ_HEAD(, buf_packet) bufpq; |
| int32_t bufpq_size; |
| int32_t bufpq_target_size; |
| USBPacket *pending_async_packet; |
| }; |
| |
| struct PacketIdQueueEntry { |
| uint64_t id; |
| QTAILQ_ENTRY(PacketIdQueueEntry)next; |
| }; |
| |
| struct PacketIdQueue { |
| USBRedirDevice *dev; |
| const char *name; |
| QTAILQ_HEAD(, PacketIdQueueEntry) head; |
| int size; |
| }; |
| |
| struct USBRedirDevice { |
| USBDevice dev; |
| /* Properties */ |
| CharBackend cs; |
| bool enable_streams; |
| bool suppress_remote_wake; |
| bool in_write; |
| uint8_t debug; |
| int32_t bootindex; |
| char *filter_str; |
| /* Data passed from chardev the fd_read cb to the usbredirparser read cb */ |
| const uint8_t *read_buf; |
| int read_buf_size; |
| /* Active chardev-watch-tag */ |
| guint watch; |
| /* For async handling of close / reject */ |
| QEMUBH *chardev_close_bh; |
| QEMUBH *device_reject_bh; |
| /* To delay the usb attach in case of quick chardev close + open */ |
| QEMUTimer *attach_timer; |
| int64_t next_attach_time; |
| struct usbredirparser *parser; |
| struct endp_data endpoint[MAX_ENDPOINTS]; |
| struct PacketIdQueue cancelled; |
| struct PacketIdQueue already_in_flight; |
| void (*buffered_bulk_in_complete)(USBRedirDevice *, USBPacket *, uint8_t); |
| /* Data for device filtering */ |
| struct usb_redir_device_connect_header device_info; |
| struct usb_redir_interface_info_header interface_info; |
| struct usbredirfilter_rule *filter_rules; |
| int filter_rules_count; |
| int compatible_speedmask; |
| VMChangeStateEntry *vmstate; |
| }; |
| |
| #define TYPE_USB_REDIR "usb-redir" |
| DECLARE_INSTANCE_CHECKER(USBRedirDevice, USB_REDIRECT, |
| TYPE_USB_REDIR) |
| |
| static void usbredir_hello(void *priv, struct usb_redir_hello_header *h); |
| static void usbredir_device_connect(void *priv, |
| struct usb_redir_device_connect_header *device_connect); |
| static void usbredir_device_disconnect(void *priv); |
| static void usbredir_interface_info(void *priv, |
| struct usb_redir_interface_info_header *interface_info); |
| static void usbredir_ep_info(void *priv, |
| struct usb_redir_ep_info_header *ep_info); |
| static void usbredir_configuration_status(void *priv, uint64_t id, |
| struct usb_redir_configuration_status_header *configuration_status); |
| static void usbredir_alt_setting_status(void *priv, uint64_t id, |
| struct usb_redir_alt_setting_status_header *alt_setting_status); |
| static void usbredir_iso_stream_status(void *priv, uint64_t id, |
| struct usb_redir_iso_stream_status_header *iso_stream_status); |
| static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, |
| struct usb_redir_interrupt_receiving_status_header |
| *interrupt_receiving_status); |
| static void usbredir_bulk_streams_status(void *priv, uint64_t id, |
| struct usb_redir_bulk_streams_status_header *bulk_streams_status); |
| static void usbredir_bulk_receiving_status(void *priv, uint64_t id, |
| struct usb_redir_bulk_receiving_status_header *bulk_receiving_status); |
| static void usbredir_control_packet(void *priv, uint64_t id, |
| struct usb_redir_control_packet_header *control_packet, |
| uint8_t *data, int data_len); |
| static void usbredir_bulk_packet(void *priv, uint64_t id, |
| struct usb_redir_bulk_packet_header *bulk_packet, |
| uint8_t *data, int data_len); |
| static void usbredir_iso_packet(void *priv, uint64_t id, |
| struct usb_redir_iso_packet_header *iso_packet, |
| uint8_t *data, int data_len); |
| static void usbredir_interrupt_packet(void *priv, uint64_t id, |
| struct usb_redir_interrupt_packet_header *interrupt_header, |
| uint8_t *data, int data_len); |
| static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, |
| struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, |
| uint8_t *data, int data_len); |
| |
| static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, |
| int status); |
| |
| #define VERSION "qemu usb-redir guest " QEMU_VERSION |
| |
| /* |
| * Logging stuff |
| */ |
| |
| #define ERROR(...) \ |
| do { \ |
| if (dev->debug >= usbredirparser_error) { \ |
| error_report("usb-redir error: " __VA_ARGS__); \ |
| } \ |
| } while (0) |
| #define WARNING(...) \ |
| do { \ |
| if (dev->debug >= usbredirparser_warning) { \ |
| warn_report("" __VA_ARGS__); \ |
| } \ |
| } while (0) |
| #define INFO(...) \ |
| do { \ |
| if (dev->debug >= usbredirparser_info) { \ |
| error_report("usb-redir: " __VA_ARGS__); \ |
| } \ |
| } while (0) |
| #define DPRINTF(...) \ |
| do { \ |
| if (dev->debug >= usbredirparser_debug) { \ |
| error_report("usb-redir: " __VA_ARGS__); \ |
| } \ |
| } while (0) |
| #define DPRINTF2(...) \ |
| do { \ |
| if (dev->debug >= usbredirparser_debug_data) { \ |
| error_report("usb-redir: " __VA_ARGS__); \ |
| } \ |
| } while (0) |
| |
| static void usbredir_log(void *priv, int level, const char *msg) |
| { |
| USBRedirDevice *dev = priv; |
| |
| if (dev->debug < level) { |
| return; |
| } |
| |
| error_report("%s", msg); |
| } |
| |
| static void usbredir_log_data(USBRedirDevice *dev, const char *desc, |
| const uint8_t *data, int len) |
| { |
| if (dev->debug < usbredirparser_debug_data) { |
| return; |
| } |
| qemu_hexdump(stderr, desc, data, len); |
| } |
| |
| /* |
| * usbredirparser io functions |
| */ |
| |
| static int usbredir_read(void *priv, uint8_t *data, int count) |
| { |
| USBRedirDevice *dev = priv; |
| |
| if (dev->read_buf_size < count) { |
| count = dev->read_buf_size; |
| } |
| |
| memcpy(data, dev->read_buf, count); |
| |
| dev->read_buf_size -= count; |
| if (dev->read_buf_size) { |
| dev->read_buf += count; |
| } else { |
| dev->read_buf = NULL; |
| } |
| |
| return count; |
| } |
| |
| static gboolean usbredir_write_unblocked(GIOChannel *chan, GIOCondition cond, |
| void *opaque) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| dev->watch = 0; |
| usbredirparser_do_write(dev->parser); |
| |
| return FALSE; |
| } |
| |
| static int usbredir_write(void *priv, uint8_t *data, int count) |
| { |
| USBRedirDevice *dev = priv; |
| int r; |
| |
| if (!qemu_chr_fe_backend_open(&dev->cs)) { |
| return 0; |
| } |
| |
| /* Don't send new data to the chardev until our state is fully synced */ |
| if (!runstate_check(RUN_STATE_RUNNING)) { |
| return 0; |
| } |
| |
| /* Recursion check */ |
| if (dev->in_write) { |
| DPRINTF("usbredir_write recursion\n"); |
| return 0; |
| } |
| dev->in_write = true; |
| |
| r = qemu_chr_fe_write(&dev->cs, data, count); |
| if (r < count) { |
| if (!dev->watch) { |
| dev->watch = qemu_chr_fe_add_watch(&dev->cs, G_IO_OUT | G_IO_HUP, |
| usbredir_write_unblocked, dev); |
| } |
| if (r < 0) { |
| r = 0; |
| } |
| } |
| dev->in_write = false; |
| return r; |
| } |
| |
| /* |
| * Cancelled and buffered packets helpers |
| */ |
| |
| static void packet_id_queue_init(struct PacketIdQueue *q, |
| USBRedirDevice *dev, const char *name) |
| { |
| q->dev = dev; |
| q->name = name; |
| QTAILQ_INIT(&q->head); |
| q->size = 0; |
| } |
| |
| static void packet_id_queue_add(struct PacketIdQueue *q, uint64_t id) |
| { |
| USBRedirDevice *dev = q->dev; |
| struct PacketIdQueueEntry *e; |
| |
| DPRINTF("adding packet id %"PRIu64" to %s queue\n", id, q->name); |
| |
| e = g_new0(struct PacketIdQueueEntry, 1); |
| e->id = id; |
| QTAILQ_INSERT_TAIL(&q->head, e, next); |
| q->size++; |
| } |
| |
| static int packet_id_queue_remove(struct PacketIdQueue *q, uint64_t id) |
| { |
| USBRedirDevice *dev = q->dev; |
| struct PacketIdQueueEntry *e; |
| |
| QTAILQ_FOREACH(e, &q->head, next) { |
| if (e->id == id) { |
| DPRINTF("removing packet id %"PRIu64" from %s queue\n", |
| id, q->name); |
| QTAILQ_REMOVE(&q->head, e, next); |
| q->size--; |
| g_free(e); |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static void packet_id_queue_empty(struct PacketIdQueue *q) |
| { |
| USBRedirDevice *dev = q->dev; |
| struct PacketIdQueueEntry *e, *next_e; |
| |
| DPRINTF("removing %d packet-ids from %s queue\n", q->size, q->name); |
| |
| QTAILQ_FOREACH_SAFE(e, &q->head, next, next_e) { |
| QTAILQ_REMOVE(&q->head, e, next); |
| g_free(e); |
| } |
| q->size = 0; |
| } |
| |
| static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| int i = USBEP2I(p->ep); |
| |
| if (p->combined) { |
| usb_combined_packet_cancel(udev, p); |
| return; |
| } |
| |
| if (dev->endpoint[i].pending_async_packet) { |
| assert(dev->endpoint[i].pending_async_packet == p); |
| dev->endpoint[i].pending_async_packet = NULL; |
| return; |
| } |
| |
| packet_id_queue_add(&dev->cancelled, p->id); |
| usbredirparser_send_cancel_data_packet(dev->parser, p->id); |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id) |
| { |
| if (!dev->dev.attached) { |
| return 1; /* Treat everything as cancelled after a disconnect */ |
| } |
| return packet_id_queue_remove(&dev->cancelled, id); |
| } |
| |
| static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev, |
| struct USBEndpoint *ep) |
| { |
| static USBPacket *p; |
| |
| /* async handled packets for bulk receiving eps do not count as inflight */ |
| if (dev->endpoint[USBEP2I(ep)].bulk_receiving_started) { |
| return; |
| } |
| |
| QTAILQ_FOREACH(p, &ep->queue, queue) { |
| /* Skip combined packets, except for the first */ |
| if (p->combined && p != p->combined->first) { |
| continue; |
| } |
| if (p->state == USB_PACKET_ASYNC) { |
| packet_id_queue_add(&dev->already_in_flight, p->id); |
| } |
| } |
| } |
| |
| static void usbredir_fill_already_in_flight(USBRedirDevice *dev) |
| { |
| int ep; |
| struct USBDevice *udev = &dev->dev; |
| |
| usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_ctl); |
| |
| for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
| usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_in[ep]); |
| usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_out[ep]); |
| } |
| } |
| |
| static int usbredir_already_in_flight(USBRedirDevice *dev, uint64_t id) |
| { |
| return packet_id_queue_remove(&dev->already_in_flight, id); |
| } |
| |
| static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev, |
| uint8_t ep, uint64_t id) |
| { |
| USBPacket *p; |
| |
| if (usbredir_is_cancelled(dev, id)) { |
| return NULL; |
| } |
| |
| p = usb_ep_find_packet_by_id(&dev->dev, |
| (ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT, |
| ep & 0x0f, id); |
| if (p == NULL) { |
| ERROR("could not find packet with id %"PRIu64"\n", id); |
| } |
| return p; |
| } |
| |
| static int bufp_alloc(USBRedirDevice *dev, uint8_t *data, uint16_t len, |
| uint8_t status, uint8_t ep, void *free_on_destroy) |
| { |
| struct buf_packet *bufp; |
| |
| if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets && |
| dev->endpoint[EP2I(ep)].bufpq_size > |
| 2 * dev->endpoint[EP2I(ep)].bufpq_target_size) { |
| DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1; |
| } |
| /* Since we're interupting the stream anyways, drop enough packets to get |
| back to our target buffer size */ |
| if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) { |
| if (dev->endpoint[EP2I(ep)].bufpq_size > |
| dev->endpoint[EP2I(ep)].bufpq_target_size) { |
| free(data); |
| return -1; |
| } |
| dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; |
| } |
| |
| bufp = g_new(struct buf_packet, 1); |
| bufp->data = data; |
| bufp->len = len; |
| bufp->offset = 0; |
| bufp->status = status; |
| bufp->free_on_destroy = free_on_destroy; |
| QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
| dev->endpoint[EP2I(ep)].bufpq_size++; |
| return 0; |
| } |
| |
| static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, |
| uint8_t ep) |
| { |
| QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
| dev->endpoint[EP2I(ep)].bufpq_size--; |
| free(bufp->free_on_destroy); |
| g_free(bufp); |
| } |
| |
| static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) |
| { |
| struct buf_packet *buf, *buf_next; |
| |
| QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) { |
| bufp_free(dev, buf, ep); |
| } |
| } |
| |
| /* |
| * USBDevice callbacks |
| */ |
| |
| static void usbredir_handle_reset(USBDevice *udev) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| |
| DPRINTF("reset device\n"); |
| usbredirparser_send_reset(dev->parser); |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, |
| uint8_t ep) |
| { |
| int status, len; |
| if (!dev->endpoint[EP2I(ep)].iso_started && |
| !dev->endpoint[EP2I(ep)].iso_error) { |
| struct usb_redir_start_iso_stream_header start_iso = { |
| .endpoint = ep, |
| }; |
| int pkts_per_sec; |
| |
| if (dev->dev.speed == USB_SPEED_HIGH) { |
| pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval; |
| } else { |
| pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval; |
| } |
| /* Testing has shown that we need circa 60 ms buffer */ |
| dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; |
| |
| /* Aim for approx 100 interrupts / second on the client to |
| balance latency and interrupt load */ |
| start_iso.pkts_per_urb = pkts_per_sec / 100; |
| if (start_iso.pkts_per_urb < 1) { |
| start_iso.pkts_per_urb = 1; |
| } else if (start_iso.pkts_per_urb > 32) { |
| start_iso.pkts_per_urb = 32; |
| } |
| |
| start_iso.no_urbs = DIV_ROUND_UP( |
| dev->endpoint[EP2I(ep)].bufpq_target_size, |
| start_iso.pkts_per_urb); |
| /* Output endpoints pre-fill only 1/2 of the packets, keeping the rest |
| as overflow buffer. Also see the usbredir protocol documentation */ |
| if (!(ep & USB_DIR_IN)) { |
| start_iso.no_urbs *= 2; |
| } |
| if (start_iso.no_urbs > 16) { |
| start_iso.no_urbs = 16; |
| } |
| |
| /* No id, we look at the ep when receiving a status back */ |
| usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso); |
| usbredirparser_do_write(dev->parser); |
| DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n", |
| pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); |
| dev->endpoint[EP2I(ep)].iso_started = 1; |
| dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; |
| dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; |
| } |
| |
| if (ep & USB_DIR_IN) { |
| struct buf_packet *isop; |
| |
| if (dev->endpoint[EP2I(ep)].iso_started && |
| !dev->endpoint[EP2I(ep)].bufpq_prefilled) { |
| if (dev->endpoint[EP2I(ep)].bufpq_size < |
| dev->endpoint[EP2I(ep)].bufpq_target_size) { |
| return; |
| } |
| dev->endpoint[EP2I(ep)].bufpq_prefilled = 1; |
| } |
| |
| isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
| if (isop == NULL) { |
| DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n", |
| ep, dev->endpoint[EP2I(ep)].iso_error); |
| /* Re-fill the buffer */ |
| dev->endpoint[EP2I(ep)].bufpq_prefilled = 0; |
| /* Check iso_error for stream errors, otherwise its an underrun */ |
| status = dev->endpoint[EP2I(ep)].iso_error; |
| dev->endpoint[EP2I(ep)].iso_error = 0; |
| p->status = status ? USB_RET_IOERROR : USB_RET_SUCCESS; |
| return; |
| } |
| DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep, |
| isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); |
| |
| status = isop->status; |
| len = isop->len; |
| if (len > p->iov.size) { |
| ERROR("received iso data is larger then packet ep %02X (%d > %d)\n", |
| ep, len, (int)p->iov.size); |
| len = p->iov.size; |
| status = usb_redir_babble; |
| } |
| usb_packet_copy(p, isop->data, len); |
| bufp_free(dev, isop, ep); |
| usbredir_handle_status(dev, p, status); |
| } else { |
| /* If the stream was not started because of a pending error don't |
| send the packet to the usb-host */ |
| if (dev->endpoint[EP2I(ep)].iso_started) { |
| struct usb_redir_iso_packet_header iso_packet = { |
| .endpoint = ep, |
| .length = p->iov.size |
| }; |
| g_autofree uint8_t *buf = g_malloc(p->iov.size); |
| /* No id, we look at the ep when receiving a status back */ |
| usb_packet_copy(p, buf, p->iov.size); |
| usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet, |
| buf, p->iov.size); |
| usbredirparser_do_write(dev->parser); |
| } |
| status = dev->endpoint[EP2I(ep)].iso_error; |
| dev->endpoint[EP2I(ep)].iso_error = 0; |
| DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status, |
| p->iov.size); |
| usbredir_handle_status(dev, p, status); |
| } |
| } |
| |
| static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
| { |
| struct usb_redir_stop_iso_stream_header stop_iso_stream = { |
| .endpoint = ep |
| }; |
| if (dev->endpoint[EP2I(ep)].iso_started) { |
| usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream); |
| DPRINTF("iso stream stopped ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].iso_started = 0; |
| } |
| dev->endpoint[EP2I(ep)].iso_error = 0; |
| usbredir_free_bufpq(dev, ep); |
| } |
| |
| /* |
| * The usb-host may poll the endpoint faster then our guest, resulting in lots |
| * of smaller bulkp-s. The below buffered_bulk_in_complete* functions combine |
| * data from multiple bulkp-s into a single packet, avoiding bufpq overflows. |
| */ |
| static void usbredir_buffered_bulk_add_data_to_packet(USBRedirDevice *dev, |
| struct buf_packet *bulkp, int count, USBPacket *p, uint8_t ep) |
| { |
| usb_packet_copy(p, bulkp->data + bulkp->offset, count); |
| bulkp->offset += count; |
| if (bulkp->offset == bulkp->len) { |
| /* Store status in the last packet with data from this bulkp */ |
| usbredir_handle_status(dev, p, bulkp->status); |
| bufp_free(dev, bulkp, ep); |
| } |
| } |
| |
| static void usbredir_buffered_bulk_in_complete_raw(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| struct buf_packet *bulkp; |
| int count; |
| |
| while ((bulkp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq)) && |
| p->actual_length < p->iov.size && p->status == USB_RET_SUCCESS) { |
| count = bulkp->len - bulkp->offset; |
| if (count > (p->iov.size - p->actual_length)) { |
| count = p->iov.size - p->actual_length; |
| } |
| usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); |
| } |
| } |
| |
| static void usbredir_buffered_bulk_in_complete_ftdi(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; |
| uint8_t header[2] = { 0, 0 }; |
| struct buf_packet *bulkp; |
| int count; |
| |
| while ((bulkp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq)) && |
| p->actual_length < p->iov.size && p->status == USB_RET_SUCCESS) { |
| if (bulkp->len < 2) { |
| WARNING("malformed ftdi bulk in packet\n"); |
| bufp_free(dev, bulkp, ep); |
| continue; |
| } |
| |
| if ((p->actual_length % maxp) == 0) { |
| usb_packet_copy(p, bulkp->data, 2); |
| memcpy(header, bulkp->data, 2); |
| } else { |
| if (bulkp->data[0] != header[0] || bulkp->data[1] != header[1]) { |
| break; /* Different header, add to next packet */ |
| } |
| } |
| |
| if (bulkp->offset == 0) { |
| bulkp->offset = 2; /* Skip header */ |
| } |
| count = bulkp->len - bulkp->offset; |
| /* Must repeat the header at maxp interval */ |
| if (count > (maxp - (p->actual_length % maxp))) { |
| count = maxp - (p->actual_length % maxp); |
| } |
| usbredir_buffered_bulk_add_data_to_packet(dev, bulkp, count, p, ep); |
| } |
| } |
| |
| static void usbredir_buffered_bulk_in_complete(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ |
| dev->buffered_bulk_in_complete(dev, p, ep); |
| DPRINTF("bulk-token-in ep %02X status %d len %d id %"PRIu64"\n", |
| ep, p->status, p->actual_length, p->id); |
| } |
| |
| static void usbredir_handle_buffered_bulk_in_data(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| /* Input bulk endpoint, buffered packet input */ |
| if (!dev->endpoint[EP2I(ep)].bulk_receiving_started) { |
| int bpt; |
| struct usb_redir_start_bulk_receiving_header start = { |
| .endpoint = ep, |
| .stream_id = 0, |
| .no_transfers = 5, |
| }; |
| /* Round bytes_per_transfer up to a multiple of max_packet_size */ |
| bpt = 512 + dev->endpoint[EP2I(ep)].max_packet_size - 1; |
| bpt /= dev->endpoint[EP2I(ep)].max_packet_size; |
| bpt *= dev->endpoint[EP2I(ep)].max_packet_size; |
| start.bytes_per_transfer = bpt; |
| /* No id, we look at the ep when receiving a status back */ |
| usbredirparser_send_start_bulk_receiving(dev->parser, 0, &start); |
| usbredirparser_do_write(dev->parser); |
| DPRINTF("bulk receiving started bytes/transfer %u count %d ep %02X\n", |
| start.bytes_per_transfer, start.no_transfers, ep); |
| dev->endpoint[EP2I(ep)].bulk_receiving_started = 1; |
| /* We don't really want to drop bulk packets ever, but |
| having some upper limit to how much we buffer is good. */ |
| dev->endpoint[EP2I(ep)].bufpq_target_size = 5000; |
| dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; |
| } |
| |
| if (QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq)) { |
| DPRINTF("bulk-token-in ep %02X, no bulkp\n", ep); |
| assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); |
| dev->endpoint[EP2I(ep)].pending_async_packet = p; |
| p->status = USB_RET_ASYNC; |
| return; |
| } |
| usbredir_buffered_bulk_in_complete(dev, p, ep); |
| } |
| |
| static void usbredir_stop_bulk_receiving(USBRedirDevice *dev, uint8_t ep) |
| { |
| struct usb_redir_stop_bulk_receiving_header stop_bulk = { |
| .endpoint = ep, |
| .stream_id = 0, |
| }; |
| if (dev->endpoint[EP2I(ep)].bulk_receiving_started) { |
| usbredirparser_send_stop_bulk_receiving(dev->parser, 0, &stop_bulk); |
| DPRINTF("bulk receiving stopped ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; |
| } |
| usbredir_free_bufpq(dev, ep); |
| } |
| |
| static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
| uint8_t ep) |
| { |
| struct usb_redir_bulk_packet_header bulk_packet; |
| size_t size = usb_packet_size(p); |
| const int maxp = dev->endpoint[EP2I(ep)].max_packet_size; |
| |
| if (usbredir_already_in_flight(dev, p->id)) { |
| p->status = USB_RET_ASYNC; |
| return; |
| } |
| |
| if (dev->endpoint[EP2I(ep)].bulk_receiving_enabled) { |
| if (size != 0 && (size % maxp) == 0) { |
| usbredir_handle_buffered_bulk_in_data(dev, p, ep); |
| return; |
| } |
| WARNING("bulk recv invalid size %zd ep %02x, disabling\n", size, ep); |
| assert(dev->endpoint[EP2I(ep)].pending_async_packet == NULL); |
| usbredir_stop_bulk_receiving(dev, ep); |
| dev->endpoint[EP2I(ep)].bulk_receiving_enabled = 0; |
| } |
| |
| DPRINTF("bulk-out ep %02X stream %u len %zd id %"PRIu64"\n", |
| ep, p->stream, size, p->id); |
| |
| bulk_packet.endpoint = ep; |
| bulk_packet.length = size; |
| bulk_packet.stream_id = p->stream; |
| bulk_packet.length_high = size >> 16; |
| assert(bulk_packet.length_high == 0 || |
| usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_32bits_bulk_length)); |
| |
| if (ep & USB_DIR_IN || size == 0) { |
| usbredirparser_send_bulk_packet(dev->parser, p->id, |
| &bulk_packet, NULL, 0); |
| } else { |
| g_autofree uint8_t *buf = g_malloc(size); |
| usb_packet_copy(p, buf, size); |
| usbredir_log_data(dev, "bulk data out:", buf, size); |
| usbredirparser_send_bulk_packet(dev->parser, p->id, |
| &bulk_packet, buf, size); |
| } |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static void usbredir_handle_interrupt_in_data(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| /* Input interrupt endpoint, buffered packet input */ |
| struct buf_packet *intp, *intp_to_free; |
| int status, len, sum; |
| |
| if (!dev->endpoint[EP2I(ep)].interrupt_started && |
| !dev->endpoint[EP2I(ep)].interrupt_error) { |
| struct usb_redir_start_interrupt_receiving_header start_int = { |
| .endpoint = ep, |
| }; |
| /* No id, we look at the ep when receiving a status back */ |
| usbredirparser_send_start_interrupt_receiving(dev->parser, 0, |
| &start_int); |
| usbredirparser_do_write(dev->parser); |
| DPRINTF("interrupt recv started ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].interrupt_started = 1; |
| /* We don't really want to drop interrupt packets ever, but |
| having some upper limit to how much we buffer is good. */ |
| dev->endpoint[EP2I(ep)].bufpq_target_size = 1000; |
| dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; |
| } |
| |
| /* check for completed interrupt message (with all fragments) */ |
| sum = 0; |
| QTAILQ_FOREACH(intp, &dev->endpoint[EP2I(ep)].bufpq, next) { |
| sum += intp->len; |
| if (intp->len < dev->endpoint[EP2I(ep)].max_packet_size || |
| sum >= p->iov.size) |
| break; |
| } |
| |
| if (intp == NULL) { |
| DPRINTF2("interrupt-token-in ep %02X, no intp, buffered %d\n", ep, sum); |
| /* Check interrupt_error for stream errors */ |
| status = dev->endpoint[EP2I(ep)].interrupt_error; |
| dev->endpoint[EP2I(ep)].interrupt_error = 0; |
| if (status) { |
| usbredir_handle_status(dev, p, status); |
| } else { |
| p->status = USB_RET_NAK; |
| } |
| return; |
| } |
| |
| /* copy of completed interrupt message */ |
| sum = 0; |
| status = usb_redir_success; |
| intp_to_free = NULL; |
| QTAILQ_FOREACH(intp, &dev->endpoint[EP2I(ep)].bufpq, next) { |
| if (intp_to_free) { |
| bufp_free(dev, intp_to_free, ep); |
| } |
| DPRINTF("interrupt-token-in ep %02X fragment status %d len %d\n", ep, |
| intp->status, intp->len); |
| |
| sum += intp->len; |
| len = intp->len; |
| if (status == usb_redir_success) { |
| status = intp->status; |
| } |
| if (sum > p->iov.size) { |
| ERROR("received int data is larger then packet ep %02X\n", ep); |
| len -= (sum - p->iov.size); |
| sum = p->iov.size; |
| status = usb_redir_babble; |
| } |
| |
| usb_packet_copy(p, intp->data, len); |
| |
| intp_to_free = intp; |
| if (intp->len < dev->endpoint[EP2I(ep)].max_packet_size || |
| sum >= p->iov.size) |
| break; |
| } |
| if (intp_to_free) { |
| bufp_free(dev, intp_to_free, ep); |
| } |
| DPRINTF("interrupt-token-in ep %02X summary status %d len %d\n", ep, |
| status, sum); |
| usbredir_handle_status(dev, p, status); |
| } |
| |
| /* |
| * Handle interrupt out data, the usbredir protocol expects us to do this |
| * async, so that it can report back a completion status. But guests will |
| * expect immediate completion for an interrupt endpoint, and handling this |
| * async causes migration issues. So we report success directly, counting |
| * on the fact that output interrupt packets normally always succeed. |
| */ |
| static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, |
| USBPacket *p, uint8_t ep) |
| { |
| struct usb_redir_interrupt_packet_header interrupt_packet; |
| g_autofree uint8_t *buf = g_malloc(p->iov.size); |
| |
| DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, |
| p->iov.size, p->id); |
| |
| interrupt_packet.endpoint = ep; |
| interrupt_packet.length = p->iov.size; |
| |
| usb_packet_copy(p, buf, p->iov.size); |
| usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size); |
| usbredirparser_send_interrupt_packet(dev->parser, p->id, |
| &interrupt_packet, buf, p->iov.size); |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
| uint8_t ep) |
| { |
| struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = { |
| .endpoint = ep |
| }; |
| if (dev->endpoint[EP2I(ep)].interrupt_started) { |
| usbredirparser_send_stop_interrupt_receiving(dev->parser, 0, |
| &stop_interrupt_recv); |
| DPRINTF("interrupt recv stopped ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].interrupt_started = 0; |
| } |
| dev->endpoint[EP2I(ep)].interrupt_error = 0; |
| usbredir_free_bufpq(dev, ep); |
| } |
| |
| static void usbredir_handle_data(USBDevice *udev, USBPacket *p) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| uint8_t ep; |
| |
| ep = p->ep->nr; |
| if (p->pid == USB_TOKEN_IN) { |
| ep |= USB_DIR_IN; |
| } |
| |
| switch (dev->endpoint[EP2I(ep)].type) { |
| case USB_ENDPOINT_XFER_CONTROL: |
| ERROR("handle_data called for control transfer on ep %02X\n", ep); |
| p->status = USB_RET_NAK; |
| break; |
| case USB_ENDPOINT_XFER_BULK: |
| if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN && |
| p->ep->pipeline) { |
| p->status = USB_RET_ADD_TO_QUEUE; |
| break; |
| } |
| usbredir_handle_bulk_data(dev, p, ep); |
| break; |
| case USB_ENDPOINT_XFER_ISOC: |
| usbredir_handle_iso_data(dev, p, ep); |
| break; |
| case USB_ENDPOINT_XFER_INT: |
| if (ep & USB_DIR_IN) { |
| usbredir_handle_interrupt_in_data(dev, p, ep); |
| } else { |
| usbredir_handle_interrupt_out_data(dev, p, ep); |
| } |
| break; |
| default: |
| ERROR("handle_data ep %02X has unknown type %d\n", ep, |
| dev->endpoint[EP2I(ep)].type); |
| p->status = USB_RET_NAK; |
| } |
| } |
| |
| static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) |
| { |
| if (ep->pid == USB_TOKEN_IN && ep->pipeline) { |
| usb_ep_combine_input_packets(ep); |
| } |
| } |
| |
| static void usbredir_stop_ep(USBRedirDevice *dev, int i) |
| { |
| uint8_t ep = I2EP(i); |
| |
| switch (dev->endpoint[i].type) { |
| case USB_ENDPOINT_XFER_BULK: |
| if (ep & USB_DIR_IN) { |
| usbredir_stop_bulk_receiving(dev, ep); |
| } |
| break; |
| case USB_ENDPOINT_XFER_ISOC: |
| usbredir_stop_iso_stream(dev, ep); |
| break; |
| case USB_ENDPOINT_XFER_INT: |
| if (ep & USB_DIR_IN) { |
| usbredir_stop_interrupt_receiving(dev, ep); |
| } |
| break; |
| } |
| usbredir_free_bufpq(dev, ep); |
| } |
| |
| static void usbredir_ep_stopped(USBDevice *udev, USBEndpoint *uep) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| |
| usbredir_stop_ep(dev, USBEP2I(uep)); |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static void usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
| int config) |
| { |
| struct usb_redir_set_configuration_header set_config; |
| int i; |
| |
| DPRINTF("set config %d id %"PRIu64"\n", config, p->id); |
| |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| usbredir_stop_ep(dev, i); |
| } |
| |
| set_config.configuration = config; |
| usbredirparser_send_set_configuration(dev->parser, p->id, &set_config); |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static void usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
| { |
| DPRINTF("get config id %"PRIu64"\n", p->id); |
| |
| usbredirparser_send_get_configuration(dev->parser, p->id); |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static void usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
| int interface, int alt) |
| { |
| struct usb_redir_set_alt_setting_header set_alt; |
| int i; |
| |
| DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id); |
| |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| if (dev->endpoint[i].interface == interface) { |
| usbredir_stop_ep(dev, i); |
| } |
| } |
| |
| set_alt.interface = interface; |
| set_alt.alt = alt; |
| usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt); |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static void usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
| int interface) |
| { |
| struct usb_redir_get_alt_setting_header get_alt; |
| |
| DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id); |
| |
| get_alt.interface = interface; |
| usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt); |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static void usbredir_handle_control(USBDevice *udev, USBPacket *p, |
| int request, int value, int index, int length, uint8_t *data) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| struct usb_redir_control_packet_header control_packet; |
| |
| if (usbredir_already_in_flight(dev, p->id)) { |
| p->status = USB_RET_ASYNC; |
| return; |
| } |
| |
| /* Special cases for certain standard device requests */ |
| switch (request) { |
| case DeviceOutRequest | USB_REQ_SET_ADDRESS: |
| DPRINTF("set address %d\n", value); |
| dev->dev.addr = value; |
| return; |
| case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: |
| usbredir_set_config(dev, p, value & 0xff); |
| return; |
| case DeviceRequest | USB_REQ_GET_CONFIGURATION: |
| usbredir_get_config(dev, p); |
| return; |
| case InterfaceOutRequest | USB_REQ_SET_INTERFACE: |
| usbredir_set_interface(dev, p, index, value); |
| return; |
| case InterfaceRequest | USB_REQ_GET_INTERFACE: |
| usbredir_get_interface(dev, p, index); |
| return; |
| } |
| |
| /* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */ |
| DPRINTF( |
| "ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n", |
| request >> 8, request & 0xff, value, index, length, p->id); |
| |
| control_packet.request = request & 0xFF; |
| control_packet.requesttype = request >> 8; |
| control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
| control_packet.value = value; |
| control_packet.index = index; |
| control_packet.length = length; |
| |
| if (control_packet.requesttype & USB_DIR_IN) { |
| usbredirparser_send_control_packet(dev->parser, p->id, |
| &control_packet, NULL, 0); |
| } else { |
| usbredir_log_data(dev, "ctrl data out:", data, length); |
| usbredirparser_send_control_packet(dev->parser, p->id, |
| &control_packet, data, length); |
| } |
| usbredirparser_do_write(dev->parser); |
| p->status = USB_RET_ASYNC; |
| } |
| |
| static int usbredir_alloc_streams(USBDevice *udev, USBEndpoint **eps, |
| int nr_eps, int streams) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| #if USBREDIR_VERSION >= 0x000700 |
| struct usb_redir_alloc_bulk_streams_header alloc_streams; |
| int i; |
| |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_bulk_streams)) { |
| ERROR("peer does not support streams\n"); |
| goto reject; |
| } |
| |
| if (streams == 0) { |
| ERROR("request to allocate 0 streams\n"); |
| return -1; |
| } |
| |
| alloc_streams.no_streams = streams; |
| alloc_streams.endpoints = 0; |
| for (i = 0; i < nr_eps; i++) { |
| alloc_streams.endpoints |= 1 << USBEP2I(eps[i]); |
| } |
| usbredirparser_send_alloc_bulk_streams(dev->parser, 0, &alloc_streams); |
| usbredirparser_do_write(dev->parser); |
| |
| return 0; |
| #else |
| ERROR("usbredir_alloc_streams not implemented\n"); |
| goto reject; |
| #endif |
| reject: |
| ERROR("streams are not available, disconnecting\n"); |
| qemu_bh_schedule(dev->device_reject_bh); |
| return -1; |
| } |
| |
| static void usbredir_free_streams(USBDevice *udev, USBEndpoint **eps, |
| int nr_eps) |
| { |
| #if USBREDIR_VERSION >= 0x000700 |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| struct usb_redir_free_bulk_streams_header free_streams; |
| int i; |
| |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_bulk_streams)) { |
| return; |
| } |
| |
| free_streams.endpoints = 0; |
| for (i = 0; i < nr_eps; i++) { |
| free_streams.endpoints |= 1 << USBEP2I(eps[i]); |
| } |
| usbredirparser_send_free_bulk_streams(dev->parser, 0, &free_streams); |
| usbredirparser_do_write(dev->parser); |
| #endif |
| } |
| |
| /* |
| * Close events can be triggered by usbredirparser_do_write which gets called |
| * from within the USBDevice data / control packet callbacks and doing a |
| * usb_detach from within these callbacks is not a good idea. |
| * |
| * So we use a bh handler to take care of close events. |
| */ |
| static void usbredir_chardev_close_bh(void *opaque) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| qemu_bh_cancel(dev->device_reject_bh); |
| usbredir_device_disconnect(dev); |
| |
| if (dev->parser) { |
| DPRINTF("destroying usbredirparser\n"); |
| usbredirparser_destroy(dev->parser); |
| dev->parser = NULL; |
| } |
| if (dev->watch) { |
| g_source_remove(dev->watch); |
| dev->watch = 0; |
| } |
| } |
| |
| static void usbredir_create_parser(USBRedirDevice *dev) |
| { |
| uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, }; |
| int flags = 0; |
| |
| DPRINTF("creating usbredirparser\n"); |
| |
| dev->parser = qemu_oom_check(usbredirparser_create()); |
| dev->parser->priv = dev; |
| dev->parser->log_func = usbredir_log; |
| dev->parser->read_func = usbredir_read; |
| dev->parser->write_func = usbredir_write; |
| dev->parser->hello_func = usbredir_hello; |
| dev->parser->device_connect_func = usbredir_device_connect; |
| dev->parser->device_disconnect_func = usbredir_device_disconnect; |
| dev->parser->interface_info_func = usbredir_interface_info; |
| dev->parser->ep_info_func = usbredir_ep_info; |
| dev->parser->configuration_status_func = usbredir_configuration_status; |
| dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
| dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
| dev->parser->interrupt_receiving_status_func = |
| usbredir_interrupt_receiving_status; |
| dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
| dev->parser->bulk_receiving_status_func = usbredir_bulk_receiving_status; |
| dev->parser->control_packet_func = usbredir_control_packet; |
| dev->parser->bulk_packet_func = usbredir_bulk_packet; |
| dev->parser->iso_packet_func = usbredir_iso_packet; |
| dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
| dev->parser->buffered_bulk_packet_func = usbredir_buffered_bulk_packet; |
| dev->read_buf = NULL; |
| dev->read_buf_size = 0; |
| |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size); |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids); |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_32bits_bulk_length); |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_receiving); |
| #if USBREDIR_VERSION >= 0x000700 |
| if (dev->enable_streams) { |
| usbredirparser_caps_set_cap(caps, usb_redir_cap_bulk_streams); |
| } |
| #endif |
| |
| if (runstate_check(RUN_STATE_INMIGRATE)) { |
| flags |= usbredirparser_fl_no_hello; |
| } |
| usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, |
| flags); |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static void usbredir_reject_device(USBRedirDevice *dev) |
| { |
| usbredir_device_disconnect(dev); |
| if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { |
| usbredirparser_send_filter_reject(dev->parser); |
| usbredirparser_do_write(dev->parser); |
| } |
| } |
| |
| /* |
| * We may need to reject the device when the hcd calls alloc_streams, doing |
| * an usb_detach from within a hcd call is not a good idea, hence this bh. |
| */ |
| static void usbredir_device_reject_bh(void *opaque) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| usbredir_reject_device(dev); |
| } |
| |
| static void usbredir_do_attach(void *opaque) |
| { |
| USBRedirDevice *dev = opaque; |
| Error *local_err = NULL; |
| |
| /* In order to work properly with XHCI controllers we need these caps */ |
| if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !( |
| usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_ep_info_max_packet_size) && |
| usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_32bits_bulk_length) && |
| usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_64bits_ids))) { |
| ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n"); |
| usbredir_reject_device(dev); |
| return; |
| } |
| |
| usb_device_attach(&dev->dev, &local_err); |
| if (local_err) { |
| error_report_err(local_err); |
| WARNING("rejecting device due to speed mismatch\n"); |
| usbredir_reject_device(dev); |
| } |
| } |
| |
| /* |
| * chardev callbacks |
| */ |
| |
| static int usbredir_chardev_can_read(void *opaque) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| if (!dev->parser) { |
| WARNING("chardev_can_read called on non open chardev!\n"); |
| return 0; |
| } |
| |
| /* Don't read new data from the chardev until our state is fully synced */ |
| if (!runstate_check(RUN_STATE_RUNNING)) { |
| return 0; |
| } |
| |
| /* usbredir_parser_do_read will consume *all* data we give it */ |
| return 1 * MiB; |
| } |
| |
| static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| /* No recursion allowed! */ |
| assert(dev->read_buf == NULL); |
| |
| dev->read_buf = buf; |
| dev->read_buf_size = size; |
| |
| usbredirparser_do_read(dev->parser); |
| /* Send any acks, etc. which may be queued now */ |
| usbredirparser_do_write(dev->parser); |
| } |
| |
| static void usbredir_chardev_event(void *opaque, QEMUChrEvent event) |
| { |
| USBRedirDevice *dev = opaque; |
| |
| switch (event) { |
| case CHR_EVENT_OPENED: |
| DPRINTF("chardev open\n"); |
| /* Make sure any pending closes are handled (no-op if none pending) */ |
| usbredir_chardev_close_bh(dev); |
| qemu_bh_cancel(dev->chardev_close_bh); |
| usbredir_create_parser(dev); |
| break; |
| case CHR_EVENT_CLOSED: |
| DPRINTF("chardev close\n"); |
| qemu_bh_schedule(dev->chardev_close_bh); |
| break; |
| case CHR_EVENT_BREAK: |
| case CHR_EVENT_MUX_IN: |
| case CHR_EVENT_MUX_OUT: |
| /* Ignore */ |
| break; |
| } |
| } |
| |
| /* |
| * init + destroy |
| */ |
| |
| static void usbredir_vm_state_change(void *priv, bool running, RunState state) |
| { |
| USBRedirDevice *dev = priv; |
| |
| if (state == RUN_STATE_RUNNING && dev->parser != NULL) { |
| usbredirparser_do_write(dev->parser); /* Flush any pending writes */ |
| } |
| } |
| |
| static void usbredir_init_endpoints(USBRedirDevice *dev) |
| { |
| int i; |
| |
| usb_ep_init(&dev->dev); |
| memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| dev->endpoint[i].dev = dev; |
| QTAILQ_INIT(&dev->endpoint[i].bufpq); |
| } |
| } |
| |
| static void usbredir_realize(USBDevice *udev, Error **errp) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| int i; |
| |
| if (!qemu_chr_fe_backend_connected(&dev->cs)) { |
| error_setg(errp, QERR_MISSING_PARAMETER, "chardev"); |
| return; |
| } |
| |
| if (dev->filter_str) { |
| i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", |
| &dev->filter_rules, |
| &dev->filter_rules_count); |
| if (i) { |
| error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "filter", |
| "a usb device filter string"); |
| return; |
| } |
| } |
| |
| dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev); |
| dev->device_reject_bh = qemu_bh_new(usbredir_device_reject_bh, dev); |
| dev->attach_timer = timer_new_ms(QEMU_CLOCK_VIRTUAL, usbredir_do_attach, dev); |
| |
| packet_id_queue_init(&dev->cancelled, dev, "cancelled"); |
| packet_id_queue_init(&dev->already_in_flight, dev, "already-in-flight"); |
| usbredir_init_endpoints(dev); |
| |
| /* We'll do the attach once we receive the speed from the usb-host */ |
| udev->auto_attach = 0; |
| |
| /* Will be cleared during setup when we find conflicts */ |
| dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; |
| |
| /* Let the backend know we are ready */ |
| qemu_chr_fe_set_handlers(&dev->cs, usbredir_chardev_can_read, |
| usbredir_chardev_read, usbredir_chardev_event, |
| NULL, dev, NULL, true); |
| |
| dev->vmstate = |
| qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); |
| } |
| |
| static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
| { |
| int i; |
| |
| packet_id_queue_empty(&dev->cancelled); |
| packet_id_queue_empty(&dev->already_in_flight); |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| usbredir_free_bufpq(dev, I2EP(i)); |
| } |
| } |
| |
| static void usbredir_unrealize(USBDevice *udev) |
| { |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| |
| qemu_chr_fe_deinit(&dev->cs, true); |
| |
| /* Note must be done after qemu_chr_close, as that causes a close event */ |
| qemu_bh_delete(dev->chardev_close_bh); |
| qemu_bh_delete(dev->device_reject_bh); |
| |
| timer_free(dev->attach_timer); |
| |
| usbredir_cleanup_device_queues(dev); |
| |
| if (dev->parser) { |
| usbredirparser_destroy(dev->parser); |
| } |
| if (dev->watch) { |
| g_source_remove(dev->watch); |
| } |
| |
| free(dev->filter_rules); |
| qemu_del_vm_change_state_handler(dev->vmstate); |
| } |
| |
| static int usbredir_check_filter(USBRedirDevice *dev) |
| { |
| if (dev->interface_info.interface_count == NO_INTERFACE_INFO) { |
| ERROR("No interface info for device\n"); |
| goto error; |
| } |
| |
| if (dev->filter_rules) { |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_connect_device_version)) { |
| ERROR("Device filter specified and peer does not have the " |
| "connect_device_version capability\n"); |
| goto error; |
| } |
| |
| if (usbredirfilter_check( |
| dev->filter_rules, |
| dev->filter_rules_count, |
| dev->device_info.device_class, |
| dev->device_info.device_subclass, |
| dev->device_info.device_protocol, |
| dev->interface_info.interface_class, |
| dev->interface_info.interface_subclass, |
| dev->interface_info.interface_protocol, |
| dev->interface_info.interface_count, |
| dev->device_info.vendor_id, |
| dev->device_info.product_id, |
| dev->device_info.device_version_bcd, |
| 0) != 0) { |
| goto error; |
| } |
| } |
| |
| return 0; |
| |
| error: |
| usbredir_reject_device(dev); |
| return -1; |
| } |
| |
| static void usbredir_check_bulk_receiving(USBRedirDevice *dev) |
| { |
| int i, j, quirks; |
| |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_bulk_receiving)) { |
| return; |
| } |
| |
| for (i = EP2I(USB_DIR_IN); i < MAX_ENDPOINTS; i++) { |
| dev->endpoint[i].bulk_receiving_enabled = 0; |
| } |
| |
| if (dev->interface_info.interface_count == NO_INTERFACE_INFO) { |
| return; |
| } |
| |
| for (i = 0; i < dev->interface_info.interface_count; i++) { |
| quirks = usb_get_quirks(dev->device_info.vendor_id, |
| dev->device_info.product_id, |
| dev->interface_info.interface_class[i], |
| dev->interface_info.interface_subclass[i], |
| dev->interface_info.interface_protocol[i]); |
| if (!(quirks & USB_QUIRK_BUFFER_BULK_IN)) { |
| continue; |
| } |
| if (quirks & USB_QUIRK_IS_FTDI) { |
| dev->buffered_bulk_in_complete = |
| usbredir_buffered_bulk_in_complete_ftdi; |
| } else { |
| dev->buffered_bulk_in_complete = |
| usbredir_buffered_bulk_in_complete_raw; |
| } |
| |
| for (j = EP2I(USB_DIR_IN); j < MAX_ENDPOINTS; j++) { |
| if (dev->endpoint[j].interface == |
| dev->interface_info.interface[i] && |
| dev->endpoint[j].type == USB_ENDPOINT_XFER_BULK && |
| dev->endpoint[j].max_packet_size != 0) { |
| dev->endpoint[j].bulk_receiving_enabled = 1; |
| /* |
| * With buffering pipelining is not necessary. Also packet |
| * combining and bulk in buffering don't play nice together! |
| */ |
| I2USBEP(dev, j)->pipeline = false; |
| break; /* Only buffer for the first ep of each intf */ |
| } |
| } |
| } |
| } |
| |
| /* |
| * usbredirparser packet complete callbacks |
| */ |
| |
| static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, |
| int status) |
| { |
| switch (status) { |
| case usb_redir_success: |
| p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ |
| break; |
| case usb_redir_stall: |
| p->status = USB_RET_STALL; |
| break; |
| case usb_redir_cancelled: |
| /* |
| * When the usbredir-host unredirects a device, it will report a status |
| * of cancelled for all pending packets, followed by a disconnect msg. |
| */ |
| p->status = USB_RET_IOERROR; |
| break; |
| case usb_redir_inval: |
| WARNING("got invalid param error from usb-host?\n"); |
| p->status = USB_RET_IOERROR; |
| break; |
| case usb_redir_babble: |
| p->status = USB_RET_BABBLE; |
| break; |
| case usb_redir_ioerror: |
| case usb_redir_timeout: |
| default: |
| p->status = USB_RET_IOERROR; |
| } |
| } |
| |
| static void usbredir_hello(void *priv, struct usb_redir_hello_header *h) |
| { |
| USBRedirDevice *dev = priv; |
| |
| /* Try to send the filter info now that we've the usb-host's caps */ |
| if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter) && |
| dev->filter_rules) { |
| usbredirparser_send_filter_filter(dev->parser, dev->filter_rules, |
| dev->filter_rules_count); |
| usbredirparser_do_write(dev->parser); |
| } |
| } |
| |
| static void usbredir_device_connect(void *priv, |
| struct usb_redir_device_connect_header *device_connect) |
| { |
| USBRedirDevice *dev = priv; |
| const char *speed; |
| |
| if (timer_pending(dev->attach_timer) || dev->dev.attached) { |
| ERROR("Received device connect while already connected\n"); |
| return; |
| } |
| |
| switch (device_connect->speed) { |
| case usb_redir_speed_low: |
| speed = "low speed"; |
| dev->dev.speed = USB_SPEED_LOW; |
| dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL; |
| dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; |
| break; |
| case usb_redir_speed_full: |
| speed = "full speed"; |
| dev->dev.speed = USB_SPEED_FULL; |
| dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; |
| break; |
| case usb_redir_speed_high: |
| speed = "high speed"; |
| dev->dev.speed = USB_SPEED_HIGH; |
| break; |
| case usb_redir_speed_super: |
| speed = "super speed"; |
| dev->dev.speed = USB_SPEED_SUPER; |
| break; |
| default: |
| speed = "unknown speed"; |
| dev->dev.speed = USB_SPEED_FULL; |
| } |
| |
| if (usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_connect_device_version)) { |
| INFO("attaching %s device %04x:%04x version %d.%d class %02x\n", |
| speed, device_connect->vendor_id, device_connect->product_id, |
| ((device_connect->device_version_bcd & 0xf000) >> 12) * 10 + |
| ((device_connect->device_version_bcd & 0x0f00) >> 8), |
| ((device_connect->device_version_bcd & 0x00f0) >> 4) * 10 + |
| ((device_connect->device_version_bcd & 0x000f) >> 0), |
| device_connect->device_class); |
| } else { |
| INFO("attaching %s device %04x:%04x class %02x\n", speed, |
| device_connect->vendor_id, device_connect->product_id, |
| device_connect->device_class); |
| } |
| |
| dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; |
| dev->device_info = *device_connect; |
| |
| if (usbredir_check_filter(dev)) { |
| WARNING("Device %04x:%04x rejected by device filter, not attaching\n", |
| device_connect->vendor_id, device_connect->product_id); |
| return; |
| } |
| |
| usbredir_check_bulk_receiving(dev); |
| timer_mod(dev->attach_timer, dev->next_attach_time); |
| } |
| |
| static void usbredir_device_disconnect(void *priv) |
| { |
| USBRedirDevice *dev = priv; |
| |
| /* Stop any pending attaches */ |
| timer_del(dev->attach_timer); |
| |
| if (dev->dev.attached) { |
| DPRINTF("detaching device\n"); |
| usb_device_detach(&dev->dev); |
| /* |
| * Delay next usb device attach to give the guest a chance to see |
| * see the detach / attach in case of quick close / open succession |
| */ |
| dev->next_attach_time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 200; |
| } |
| |
| /* Reset state so that the next dev connected starts with a clean slate */ |
| usbredir_cleanup_device_queues(dev); |
| usbredir_init_endpoints(dev); |
| dev->interface_info.interface_count = NO_INTERFACE_INFO; |
| dev->dev.addr = 0; |
| dev->dev.speed = 0; |
| dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; |
| } |
| |
| static void usbredir_interface_info(void *priv, |
| struct usb_redir_interface_info_header *interface_info) |
| { |
| USBRedirDevice *dev = priv; |
| |
| dev->interface_info = *interface_info; |
| |
| /* |
| * If we receive interface info after the device has already been |
| * connected (ie on a set_config), re-check interface dependent things. |
| */ |
| if (timer_pending(dev->attach_timer) || dev->dev.attached) { |
| usbredir_check_bulk_receiving(dev); |
| if (usbredir_check_filter(dev)) { |
| ERROR("Device no longer matches filter after interface info " |
| "change, disconnecting!\n"); |
| } |
| } |
| } |
| |
| static void usbredir_mark_speed_incompatible(USBRedirDevice *dev, int speed) |
| { |
| dev->compatible_speedmask &= ~(1 << speed); |
| dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; |
| } |
| |
| static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep) |
| { |
| if (uep->type != USB_ENDPOINT_XFER_BULK) { |
| return; |
| } |
| if (uep->pid == USB_TOKEN_OUT) { |
| uep->pipeline = true; |
| } |
| if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 && |
| usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_32bits_bulk_length)) { |
| uep->pipeline = true; |
| } |
| } |
| |
| static void usbredir_setup_usb_eps(USBRedirDevice *dev) |
| { |
| struct USBEndpoint *usb_ep; |
| int i; |
| |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| usb_ep = I2USBEP(dev, i); |
| usb_ep->type = dev->endpoint[i].type; |
| usb_ep->ifnum = dev->endpoint[i].interface; |
| usb_ep->max_packet_size = dev->endpoint[i].max_packet_size; |
| usb_ep->max_streams = dev->endpoint[i].max_streams; |
| usbredir_set_pipeline(dev, usb_ep); |
| } |
| } |
| |
| static void usbredir_ep_info(void *priv, |
| struct usb_redir_ep_info_header *ep_info) |
| { |
| USBRedirDevice *dev = priv; |
| int i; |
| |
| assert(dev != NULL); |
| for (i = 0; i < MAX_ENDPOINTS; i++) { |
| dev->endpoint[i].type = ep_info->type[i]; |
| dev->endpoint[i].interval = ep_info->interval[i]; |
| dev->endpoint[i].interface = ep_info->interface[i]; |
| if (usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_ep_info_max_packet_size)) { |
| dev->endpoint[i].max_packet_size = ep_info->max_packet_size[i]; |
| } |
| #if USBREDIR_VERSION >= 0x000700 |
| if (usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_bulk_streams)) { |
| dev->endpoint[i].max_streams = ep_info->max_streams[i]; |
| } |
| #endif |
| switch (dev->endpoint[i].type) { |
| case usb_redir_type_invalid: |
| break; |
| case usb_redir_type_iso: |
| usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); |
| usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); |
| /* Fall through */ |
| case usb_redir_type_interrupt: |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_ep_info_max_packet_size) || |
| ep_info->max_packet_size[i] > 64) { |
| usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); |
| } |
| if (!usbredirparser_peer_has_cap(dev->parser, |
| usb_redir_cap_ep_info_max_packet_size) || |
| ep_info->max_packet_size[i] > 1024) { |
| usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); |
| } |
| if (dev->endpoint[i].interval == 0) { |
| ERROR("Received 0 interval for isoc or irq endpoint\n"); |
| usbredir_reject_device(dev); |
| return; |
| } |
| /* Fall through */ |
| case usb_redir_type_control: |
| case usb_redir_type_bulk: |
| DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i), |
| dev->endpoint[i].type, dev->endpoint[i].interface); |
| break; |
| default: |
| ERROR("Received invalid endpoint type\n"); |
| usbredir_reject_device(dev); |
| return; |
| } |
| } |
| /* The new ep info may have caused a speed incompatibility, recheck */ |
| if (dev->dev.attached && |
| !(dev->dev.port->speedmask & dev->dev.speedmask)) { |
| ERROR("Device no longer matches speed after endpoint info change, " |
| "disconnecting!\n"); |
| usbredir_reject_device(dev); |
| return; |
| } |
| usbredir_setup_usb_eps(dev); |
| usbredir_check_bulk_receiving(dev); |
| } |
| |
| static void usbredir_configuration_status(void *priv, uint64_t id, |
| struct usb_redir_configuration_status_header *config_status) |
| { |
| USBRedirDevice *dev = priv; |
| USBPacket *p; |
| |
| DPRINTF("set config status %d config %d id %"PRIu64"\n", |
| config_status->status, config_status->configuration, id); |
| |
| p = usbredir_find_packet_by_id(dev, 0, id); |
| if (p) { |
| if (dev->dev.setup_buf[0] & USB_DIR_IN) { |
| dev->dev.data_buf[0] = config_status->configuration; |
| p->actual_length = 1; |
| } |
| usbredir_handle_status(dev, p, config_status->status); |
| usb_generic_async_ctrl_complete(&dev->dev, p); |
| } |
| } |
| |
| static void usbredir_alt_setting_status(void *priv, uint64_t id, |
| struct usb_redir_alt_setting_status_header *alt_setting_status) |
| { |
| USBRedirDevice *dev = priv; |
| USBPacket *p; |
| |
| DPRINTF("alt status %d intf %d alt %d id: %"PRIu64"\n", |
| alt_setting_status->status, alt_setting_status->interface, |
| alt_setting_status->alt, id); |
| |
| p = usbredir_find_packet_by_id(dev, 0, id); |
| if (p) { |
| if (dev->dev.setup_buf[0] & USB_DIR_IN) { |
| dev->dev.data_buf[0] = alt_setting_status->alt; |
| p->actual_length = 1; |
| } |
| usbredir_handle_status(dev, p, alt_setting_status->status); |
| usb_generic_async_ctrl_complete(&dev->dev, p); |
| } |
| } |
| |
| static void usbredir_iso_stream_status(void *priv, uint64_t id, |
| struct usb_redir_iso_stream_status_header *iso_stream_status) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = iso_stream_status->endpoint; |
| |
| DPRINTF("iso status %d ep %02X id %"PRIu64"\n", iso_stream_status->status, |
| ep, id); |
| |
| if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) { |
| return; |
| } |
| |
| dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
| if (iso_stream_status->status == usb_redir_stall) { |
| DPRINTF("iso stream stopped by peer ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].iso_started = 0; |
| } |
| } |
| |
| static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, |
| struct usb_redir_interrupt_receiving_status_header |
| *interrupt_receiving_status) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = interrupt_receiving_status->endpoint; |
| |
| DPRINTF("interrupt recv status %d ep %02X id %"PRIu64"\n", |
| interrupt_receiving_status->status, ep, id); |
| |
| if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) { |
| return; |
| } |
| |
| dev->endpoint[EP2I(ep)].interrupt_error = |
| interrupt_receiving_status->status; |
| if (interrupt_receiving_status->status == usb_redir_stall) { |
| DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].interrupt_started = 0; |
| } |
| } |
| |
| static void usbredir_bulk_streams_status(void *priv, uint64_t id, |
| struct usb_redir_bulk_streams_status_header *bulk_streams_status) |
| { |
| #if USBREDIR_VERSION >= 0x000700 |
| USBRedirDevice *dev = priv; |
| |
| if (bulk_streams_status->status == usb_redir_success) { |
| DPRINTF("bulk streams status %d eps %08x\n", |
| bulk_streams_status->status, bulk_streams_status->endpoints); |
| } else { |
| ERROR("bulk streams %s failed status %d eps %08x\n", |
| (bulk_streams_status->no_streams == 0) ? "free" : "alloc", |
| bulk_streams_status->status, bulk_streams_status->endpoints); |
| ERROR("usb-redir-host does not provide streams, disconnecting\n"); |
| usbredir_reject_device(dev); |
| } |
| #endif |
| } |
| |
| static void usbredir_bulk_receiving_status(void *priv, uint64_t id, |
| struct usb_redir_bulk_receiving_status_header *bulk_receiving_status) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = bulk_receiving_status->endpoint; |
| |
| DPRINTF("bulk recv status %d ep %02X id %"PRIu64"\n", |
| bulk_receiving_status->status, ep, id); |
| |
| if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].bulk_receiving_started) { |
| return; |
| } |
| |
| if (bulk_receiving_status->status == usb_redir_stall) { |
| DPRINTF("bulk receiving stopped by peer ep %02X\n", ep); |
| dev->endpoint[EP2I(ep)].bulk_receiving_started = 0; |
| } |
| } |
| |
| static void usbredir_control_packet(void *priv, uint64_t id, |
| struct usb_redir_control_packet_header *control_packet, |
| uint8_t *data, int data_len) |
| { |
| USBRedirDevice *dev = priv; |
| USBPacket *p; |
| int len = control_packet->length; |
| |
| DPRINTF("ctrl-in status %d len %d id %"PRIu64"\n", control_packet->status, |
| len, id); |
| |
| /* Fix up USB-3 ep0 maxpacket size to allow superspeed connected devices |
| * to work redirected to a not superspeed capable hcd */ |
| if (dev->dev.speed == USB_SPEED_SUPER && |
| !((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER)) && |
| control_packet->requesttype == 0x80 && |
| control_packet->request == 6 && |
| control_packet->value == 0x100 && control_packet->index == 0 && |
| data_len >= 18 && data[7] == 9) { |
| data[7] = 64; |
| } |
| |
| p = usbredir_find_packet_by_id(dev, 0, id); |
| if (p) { |
| usbredir_handle_status(dev, p, control_packet->status); |
| if (data_len > 0) { |
| usbredir_log_data(dev, "ctrl data in:", data, data_len); |
| if (data_len > sizeof(dev->dev.data_buf)) { |
| ERROR("ctrl buffer too small (%d > %zu)\n", |
| data_len, sizeof(dev->dev.data_buf)); |
| p->status = USB_RET_STALL; |
| data_len = len = sizeof(dev->dev.data_buf); |
| } |
| memcpy(dev->dev.data_buf, data, data_len); |
| } |
| p->actual_length = len; |
| /* |
| * If this is GET_DESCRIPTOR request for configuration descriptor, |
| * remove 'remote wakeup' flag from it to prevent idle power down |
| * in Windows guest |
| */ |
| if (dev->suppress_remote_wake && |
| control_packet->requesttype == USB_DIR_IN && |
| control_packet->request == USB_REQ_GET_DESCRIPTOR && |
| control_packet->value == (USB_DT_CONFIG << 8) && |
| control_packet->index == 0 && |
| /* bmAttributes field of config descriptor */ |
| len > 7 && (dev->dev.data_buf[7] & USB_CFG_ATT_WAKEUP)) { |
| DPRINTF("Removed remote wake %04X:%04X\n", |
| dev->device_info.vendor_id, |
| dev->device_info.product_id); |
| dev->dev.data_buf[7] &= ~USB_CFG_ATT_WAKEUP; |
| } |
| usb_generic_async_ctrl_complete(&dev->dev, p); |
| } |
| free(data); |
| } |
| |
| static void usbredir_bulk_packet(void *priv, uint64_t id, |
| struct usb_redir_bulk_packet_header *bulk_packet, |
| uint8_t *data, int data_len) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = bulk_packet->endpoint; |
| int len = (bulk_packet->length_high << 16) | bulk_packet->length; |
| USBPacket *p; |
| |
| DPRINTF("bulk-in status %d ep %02X stream %u len %d id %"PRIu64"\n", |
| bulk_packet->status, ep, bulk_packet->stream_id, len, id); |
| |
| p = usbredir_find_packet_by_id(dev, ep, id); |
| if (p) { |
| size_t size = usb_packet_size(p); |
| usbredir_handle_status(dev, p, bulk_packet->status); |
| if (data_len > 0) { |
| usbredir_log_data(dev, "bulk data in:", data, data_len); |
| if (data_len > size) { |
| ERROR("bulk got more data then requested (%d > %zd)\n", |
| data_len, p->iov.size); |
| p->status = USB_RET_BABBLE; |
| data_len = len = size; |
| } |
| usb_packet_copy(p, data, data_len); |
| } |
| p->actual_length = len; |
| if (p->pid == USB_TOKEN_IN && p->ep->pipeline) { |
| usb_combined_input_packet_complete(&dev->dev, p); |
| } else { |
| usb_packet_complete(&dev->dev, p); |
| } |
| } |
| free(data); |
| } |
| |
| static void usbredir_iso_packet(void *priv, uint64_t id, |
| struct usb_redir_iso_packet_header *iso_packet, |
| uint8_t *data, int data_len) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = iso_packet->endpoint; |
| |
| DPRINTF2("iso-in status %d ep %02X len %d id %"PRIu64"\n", |
| iso_packet->status, ep, data_len, id); |
| |
| if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) { |
| ERROR("received iso packet for non iso endpoint %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
| DPRINTF("received iso packet for non started stream ep %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| /* bufp_alloc also adds the packet to the ep queue */ |
| bufp_alloc(dev, data, data_len, iso_packet->status, ep, data); |
| } |
| |
| static void usbredir_interrupt_packet(void *priv, uint64_t id, |
| struct usb_redir_interrupt_packet_header *interrupt_packet, |
| uint8_t *data, int data_len) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t ep = interrupt_packet->endpoint; |
| |
| DPRINTF("interrupt-in status %d ep %02X len %d id %"PRIu64"\n", |
| interrupt_packet->status, ep, data_len, id); |
| |
| if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) { |
| ERROR("received int packet for non interrupt endpoint %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| if (ep & USB_DIR_IN) { |
| if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
| DPRINTF("received int packet while not started ep %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| /* bufp_alloc also adds the packet to the ep queue */ |
| bufp_alloc(dev, data, data_len, interrupt_packet->status, ep, data); |
| |
| /* insufficient data solved with USB_RET_NAK */ |
| usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f), 0); |
| } else { |
| /* |
| * We report output interrupt packets as completed directly upon |
| * submission, so all we can do here if one failed is warn. |
| */ |
| if (interrupt_packet->status) { |
| WARNING("interrupt output failed status %d ep %02X id %"PRIu64"\n", |
| interrupt_packet->status, ep, id); |
| } |
| } |
| } |
| |
| static void usbredir_buffered_bulk_packet(void *priv, uint64_t id, |
| struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet, |
| uint8_t *data, int data_len) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t status, ep = buffered_bulk_packet->endpoint; |
| void *free_on_destroy; |
| int i, len; |
| |
| DPRINTF("buffered-bulk-in status %d ep %02X len %d id %"PRIu64"\n", |
| buffered_bulk_packet->status, ep, data_len, id); |
| |
| if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_BULK) { |
| ERROR("received buffered-bulk packet for non bulk ep %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| if (dev->endpoint[EP2I(ep)].bulk_receiving_started == 0) { |
| DPRINTF("received buffered-bulk packet on not started ep %02X\n", ep); |
| free(data); |
| return; |
| } |
| |
| /* Data must be in maxp chunks for buffered_bulk_add_*_data_to_packet */ |
| len = dev->endpoint[EP2I(ep)].max_packet_size; |
| status = usb_redir_success; |
| free_on_destroy = NULL; |
| for (i = 0; i < data_len; i += len) { |
| int r; |
| if (len >= (data_len - i)) { |
| len = data_len - i; |
| status = buffered_bulk_packet->status; |
| free_on_destroy = data; |
| } |
| /* bufp_alloc also adds the packet to the ep queue */ |
| r = bufp_alloc(dev, data + i, len, status, ep, free_on_destroy); |
| if (r) { |
| break; |
| } |
| } |
| |
| if (dev->endpoint[EP2I(ep)].pending_async_packet) { |
| USBPacket *p = dev->endpoint[EP2I(ep)].pending_async_packet; |
| dev->endpoint[EP2I(ep)].pending_async_packet = NULL; |
| usbredir_buffered_bulk_in_complete(dev, p, ep); |
| usb_packet_complete(&dev->dev, p); |
| } |
| } |
| |
| /* |
| * Migration code |
| */ |
| |
| static int usbredir_pre_save(void *priv) |
| { |
| USBRedirDevice *dev = priv; |
| |
| usbredir_fill_already_in_flight(dev); |
| |
| return 0; |
| } |
| |
| static int usbredir_post_load(void *priv, int version_id) |
| { |
| USBRedirDevice *dev = priv; |
| |
| if (dev == NULL || dev->parser == NULL) { |
| return 0; |
| } |
| |
| switch (dev->device_info.speed) { |
| case usb_redir_speed_low: |
| dev->dev.speed = USB_SPEED_LOW; |
| break; |
| case usb_redir_speed_full: |
| dev->dev.speed = USB_SPEED_FULL; |
| break; |
| case usb_redir_speed_high: |
| dev->dev.speed = USB_SPEED_HIGH; |
| break; |
| case usb_redir_speed_super: |
| dev->dev.speed = USB_SPEED_SUPER; |
| break; |
| default: |
| dev->dev.speed = USB_SPEED_FULL; |
| } |
| dev->dev.speedmask = (1 << dev->dev.speed); |
| |
| usbredir_setup_usb_eps(dev); |
| usbredir_check_bulk_receiving(dev); |
| |
| return 0; |
| } |
| |
| /* For usbredirparser migration */ |
| static int usbredir_put_parser(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field, JSONWriter *vmdesc) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t *data; |
| int len; |
| |
| if (dev->parser == NULL) { |
| qemu_put_be32(f, 0); |
| return 0; |
| } |
| |
| usbredirparser_serialize(dev->parser, &data, &len); |
| qemu_oom_check(data); |
| |
| qemu_put_be32(f, len); |
| qemu_put_buffer(f, data, len); |
| |
| free(data); |
| |
| return 0; |
| } |
| |
| static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field) |
| { |
| USBRedirDevice *dev = priv; |
| uint8_t *data; |
| int len, ret; |
| |
| len = qemu_get_be32(f); |
| if (len == 0) { |
| return 0; |
| } |
| |
| /* |
| * If our chardev is not open already at this point the usbredir connection |
| * has been broken (non seamless migration, or restore from disk). |
| * |
| * In this case create a temporary parser to receive the migration data, |
| * and schedule the close_bh to report the device as disconnected to the |
| * guest and to destroy the parser again. |
| */ |
| if (dev->parser == NULL) { |
| WARNING("usb-redir connection broken during migration\n"); |
| usbredir_create_parser(dev); |
| qemu_bh_schedule(dev->chardev_close_bh); |
| } |
| |
| data = g_malloc(len); |
| qemu_get_buffer(f, data, len); |
| |
| ret = usbredirparser_unserialize(dev->parser, data, len); |
| |
| g_free(data); |
| |
| return ret; |
| } |
| |
| static const VMStateInfo usbredir_parser_vmstate_info = { |
| .name = "usb-redir-parser", |
| .put = usbredir_put_parser, |
| .get = usbredir_get_parser, |
| }; |
| |
| |
| /* For buffered packets (iso/irq) queue migration */ |
| static int usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field, JSONWriter *vmdesc) |
| { |
| struct endp_data *endp = priv; |
| USBRedirDevice *dev = endp->dev; |
| struct buf_packet *bufp; |
| int len, i = 0; |
| |
| qemu_put_be32(f, endp->bufpq_size); |
| QTAILQ_FOREACH(bufp, &endp->bufpq, next) { |
| len = bufp->len - bufp->offset; |
| DPRINTF("put_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, |
| len, bufp->status); |
| qemu_put_be32(f, len); |
| qemu_put_be32(f, bufp->status); |
| qemu_put_buffer(f, bufp->data + bufp->offset, len); |
| i++; |
| } |
| assert(i == endp->bufpq_size); |
| |
| return 0; |
| } |
| |
| static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field) |
| { |
| struct endp_data *endp = priv; |
| USBRedirDevice *dev = endp->dev; |
| struct buf_packet *bufp; |
| int i; |
| |
| endp->bufpq_size = qemu_get_be32(f); |
| for (i = 0; i < endp->bufpq_size; i++) { |
| bufp = g_new(struct buf_packet, 1); |
| bufp->len = qemu_get_be32(f); |
| bufp->status = qemu_get_be32(f); |
| bufp->offset = 0; |
| bufp->data = qemu_oom_check(malloc(bufp->len)); /* regular malloc! */ |
| bufp->free_on_destroy = bufp->data; |
| qemu_get_buffer(f, bufp->data, bufp->len); |
| QTAILQ_INSERT_TAIL(&endp->bufpq, bufp, next); |
| DPRINTF("get_bufpq %d/%d len %d status %d\n", i + 1, endp->bufpq_size, |
| bufp->len, bufp->status); |
| } |
| return 0; |
| } |
| |
| static const VMStateInfo usbredir_ep_bufpq_vmstate_info = { |
| .name = "usb-redir-bufpq", |
| .put = usbredir_put_bufpq, |
| .get = usbredir_get_bufpq, |
| }; |
| |
| |
| /* For endp_data migration */ |
| static bool usbredir_bulk_receiving_needed(void *priv) |
| { |
| struct endp_data *endp = priv; |
| |
| return endp->bulk_receiving_started; |
| } |
| |
| static const VMStateDescription usbredir_bulk_receiving_vmstate = { |
| .name = "usb-redir-ep/bulk-receiving", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .needed = usbredir_bulk_receiving_needed, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT8(bulk_receiving_started, struct endp_data), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool usbredir_stream_needed(void *priv) |
| { |
| struct endp_data *endp = priv; |
| |
| return endp->max_streams; |
| } |
| |
| static const VMStateDescription usbredir_stream_vmstate = { |
| .name = "usb-redir-ep/stream-state", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .needed = usbredir_stream_needed, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT32(max_streams, struct endp_data), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription usbredir_ep_vmstate = { |
| .name = "usb-redir-ep", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT8(type, struct endp_data), |
| VMSTATE_UINT8(interval, struct endp_data), |
| VMSTATE_UINT8(interface, struct endp_data), |
| VMSTATE_UINT16(max_packet_size, struct endp_data), |
| VMSTATE_UINT8(iso_started, struct endp_data), |
| VMSTATE_UINT8(iso_error, struct endp_data), |
| VMSTATE_UINT8(interrupt_started, struct endp_data), |
| VMSTATE_UINT8(interrupt_error, struct endp_data), |
| VMSTATE_UINT8(bufpq_prefilled, struct endp_data), |
| VMSTATE_UINT8(bufpq_dropping_packets, struct endp_data), |
| { |
| .name = "bufpq", |
| .version_id = 0, |
| .field_exists = NULL, |
| .size = 0, |
| .info = &usbredir_ep_bufpq_vmstate_info, |
| .flags = VMS_SINGLE, |
| .offset = 0, |
| }, |
| VMSTATE_INT32(bufpq_target_size, struct endp_data), |
| VMSTATE_END_OF_LIST() |
| }, |
| .subsections = (const VMStateDescription*[]) { |
| &usbredir_bulk_receiving_vmstate, |
| &usbredir_stream_vmstate, |
| NULL |
| } |
| }; |
| |
| |
| /* For PacketIdQueue migration */ |
| static int usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field, |
| JSONWriter *vmdesc) |
| { |
| struct PacketIdQueue *q = priv; |
| USBRedirDevice *dev = q->dev; |
| struct PacketIdQueueEntry *e; |
| int remain = q->size; |
| |
| DPRINTF("put_packet_id_q %s size %d\n", q->name, q->size); |
| qemu_put_be32(f, q->size); |
| QTAILQ_FOREACH(e, &q->head, next) { |
| qemu_put_be64(f, e->id); |
| remain--; |
| } |
| assert(remain == 0); |
| |
| return 0; |
| } |
| |
| static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused, |
| const VMStateField *field) |
| { |
| struct PacketIdQueue *q = priv; |
| USBRedirDevice *dev = q->dev; |
| int i, size; |
| uint64_t id; |
| |
| size = qemu_get_be32(f); |
| DPRINTF("get_packet_id_q %s size %d\n", q->name, size); |
| for (i = 0; i < size; i++) { |
| id = qemu_get_be64(f); |
| packet_id_queue_add(q, id); |
| } |
| assert(q->size == size); |
| return 0; |
| } |
| |
| static const VMStateInfo usbredir_ep_packet_id_q_vmstate_info = { |
| .name = "usb-redir-packet-id-q", |
| .put = usbredir_put_packet_id_q, |
| .get = usbredir_get_packet_id_q, |
| }; |
| |
| static const VMStateDescription usbredir_ep_packet_id_queue_vmstate = { |
| .name = "usb-redir-packet-id-queue", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| { |
| .name = "queue", |
| .version_id = 0, |
| .field_exists = NULL, |
| .size = 0, |
| .info = &usbredir_ep_packet_id_q_vmstate_info, |
| .flags = VMS_SINGLE, |
| .offset = 0, |
| }, |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| |
| /* For usb_redir_device_connect_header migration */ |
| static const VMStateDescription usbredir_device_info_vmstate = { |
| .name = "usb-redir-device-info", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT8(speed, struct usb_redir_device_connect_header), |
| VMSTATE_UINT8(device_class, struct usb_redir_device_connect_header), |
| VMSTATE_UINT8(device_subclass, struct usb_redir_device_connect_header), |
| VMSTATE_UINT8(device_protocol, struct usb_redir_device_connect_header), |
| VMSTATE_UINT16(vendor_id, struct usb_redir_device_connect_header), |
| VMSTATE_UINT16(product_id, struct usb_redir_device_connect_header), |
| VMSTATE_UINT16(device_version_bcd, |
| struct usb_redir_device_connect_header), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| |
| /* For usb_redir_interface_info_header migration */ |
| static const VMStateDescription usbredir_interface_info_vmstate = { |
| .name = "usb-redir-interface-info", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT32(interface_count, |
| struct usb_redir_interface_info_header), |
| VMSTATE_UINT8_ARRAY(interface, |
| struct usb_redir_interface_info_header, 32), |
| VMSTATE_UINT8_ARRAY(interface_class, |
| struct usb_redir_interface_info_header, 32), |
| VMSTATE_UINT8_ARRAY(interface_subclass, |
| struct usb_redir_interface_info_header, 32), |
| VMSTATE_UINT8_ARRAY(interface_protocol, |
| struct usb_redir_interface_info_header, 32), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| |
| /* And finally the USBRedirDevice vmstate itself */ |
| static const VMStateDescription usbredir_vmstate = { |
| .name = "usb-redir", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .pre_save = usbredir_pre_save, |
| .post_load = usbredir_post_load, |
| .fields = (VMStateField[]) { |
| VMSTATE_USB_DEVICE(dev, USBRedirDevice), |
| VMSTATE_TIMER_PTR(attach_timer, USBRedirDevice), |
| { |
| .name = "parser", |
| .version_id = 0, |
| .field_exists = NULL, |
| .size = 0, |
| .info = &usbredir_parser_vmstate_info, |
| .flags = VMS_SINGLE, |
| .offset = 0, |
| }, |
| VMSTATE_STRUCT_ARRAY(endpoint, USBRedirDevice, MAX_ENDPOINTS, 1, |
| usbredir_ep_vmstate, struct endp_data), |
| VMSTATE_STRUCT(cancelled, USBRedirDevice, 1, |
| usbredir_ep_packet_id_queue_vmstate, |
| struct PacketIdQueue), |
| VMSTATE_STRUCT(already_in_flight, USBRedirDevice, 1, |
| usbredir_ep_packet_id_queue_vmstate, |
| struct PacketIdQueue), |
| VMSTATE_STRUCT(device_info, USBRedirDevice, 1, |
| usbredir_device_info_vmstate, |
| struct usb_redir_device_connect_header), |
| VMSTATE_STRUCT(interface_info, USBRedirDevice, 1, |
| usbredir_interface_info_vmstate, |
| struct usb_redir_interface_info_header), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static Property usbredir_properties[] = { |
| DEFINE_PROP_CHR("chardev", USBRedirDevice, cs), |
| DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, usbredirparser_warning), |
| DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str), |
| DEFINE_PROP_BOOL("streams", USBRedirDevice, enable_streams, true), |
| DEFINE_PROP_BOOL("suppress-remote-wake", USBRedirDevice, |
| suppress_remote_wake, true), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void usbredir_class_initfn(ObjectClass *klass, void *data) |
| { |
| USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| uc->realize = usbredir_realize; |
| uc->product_desc = "USB Redirection Device"; |
| uc->unrealize = usbredir_unrealize; |
| uc->cancel_packet = usbredir_cancel_packet; |
| uc->handle_reset = usbredir_handle_reset; |
| uc->handle_data = usbredir_handle_data; |
| uc->handle_control = usbredir_handle_control; |
| uc->flush_ep_queue = usbredir_flush_ep_queue; |
| uc->ep_stopped = usbredir_ep_stopped; |
| uc->alloc_streams = usbredir_alloc_streams; |
| uc->free_streams = usbredir_free_streams; |
| dc->vmsd = &usbredir_vmstate; |
| device_class_set_props(dc, usbredir_properties); |
| set_bit(DEVICE_CATEGORY_MISC, dc->categories); |
| } |
| |
| static void usbredir_instance_init(Object *obj) |
| { |
| USBDevice *udev = USB_DEVICE(obj); |
| USBRedirDevice *dev = USB_REDIRECT(udev); |
| |
| device_add_bootindex_property(obj, &dev->bootindex, |
| "bootindex", NULL, |
| &udev->qdev); |
| } |
| |
| static const TypeInfo usbredir_dev_info = { |
| .name = TYPE_USB_REDIR, |
| .parent = TYPE_USB_DEVICE, |
| .instance_size = sizeof(USBRedirDevice), |
| .class_init = usbredir_class_initfn, |
| .instance_init = usbredir_instance_init, |
| }; |
| |
| static void usbredir_register_types(void) |
| { |
| type_register_static(&usbredir_dev_info); |
| } |
| |
| type_init(usbredir_register_types) |