5e796671e6
data might point into the middle of a larger buffer, there is a separate free_on_destroy pointer passed into bufp_alloc() to handle that. It is only used in the normal workflow though, not when dropping packets due to the queue being full. Fix that. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/491 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210722072756.647673-1-kraxel@redhat.com>
2619 lines
85 KiB
C
2619 lines
85 KiB
C
/*
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* USB redirector usb-guest
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*
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* Copyright (c) 2011-2012 Red Hat, Inc.
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*
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* Red Hat Authors:
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* Hans de Goede <hdegoede@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/units.h"
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#include "qapi/error.h"
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#include "qemu/timer.h"
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#include "sysemu/runstate.h"
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#include "sysemu/sysemu.h"
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#include "qapi/qmp/qerror.h"
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#include "qemu/error-report.h"
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#include "qemu/iov.h"
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#include "qemu/module.h"
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#include "chardev/char-fe.h"
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#include <usbredirparser.h>
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#include <usbredirfilter.h>
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#include "hw/qdev-properties.h"
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#include "hw/qdev-properties-system.h"
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#include "hw/usb.h"
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#include "migration/qemu-file-types.h"
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#include "migration/vmstate.h"
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#include "qom/object.h"
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/* ERROR is defined below. Remove any previous definition. */
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#undef ERROR
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#define MAX_ENDPOINTS 32
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#define NO_INTERFACE_INFO 255 /* Valid interface_count always <= 32 */
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#define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f))
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#define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f))
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#define USBEP2I(usb_ep) (((usb_ep)->pid == USB_TOKEN_IN) ? \
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((usb_ep)->nr | 0x10) : ((usb_ep)->nr))
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#define I2USBEP(d, i) (usb_ep_get(&(d)->dev, \
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((i) & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT, \
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(i) & 0x0f))
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#ifndef USBREDIR_VERSION /* This is not defined in older usbredir versions */
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#define USBREDIR_VERSION 0
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#endif
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typedef struct USBRedirDevice USBRedirDevice;
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/* Struct to hold buffered packets */
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struct buf_packet {
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uint8_t *data;
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void *free_on_destroy;
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uint16_t len;
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uint16_t offset;
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uint8_t status;
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QTAILQ_ENTRY(buf_packet)next;
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};
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struct endp_data {
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USBRedirDevice *dev;
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uint8_t type;
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uint8_t interval;
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uint8_t interface; /* bInterfaceNumber this ep belongs to */
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uint16_t max_packet_size; /* In bytes, not wMaxPacketSize format !! */
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uint32_t max_streams;
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uint8_t iso_started;
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uint8_t iso_error; /* For reporting iso errors to the HC */
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uint8_t interrupt_started;
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uint8_t interrupt_error;
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uint8_t bulk_receiving_enabled;
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uint8_t bulk_receiving_started;
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uint8_t bufpq_prefilled;
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uint8_t bufpq_dropping_packets;
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QTAILQ_HEAD(, buf_packet) bufpq;
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int32_t bufpq_size;
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int32_t bufpq_target_size;
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USBPacket *pending_async_packet;
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};
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struct PacketIdQueueEntry {
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uint64_t id;
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QTAILQ_ENTRY(PacketIdQueueEntry)next;
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};
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struct PacketIdQueue {
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USBRedirDevice *dev;
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const char *name;
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QTAILQ_HEAD(, PacketIdQueueEntry) head;
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int size;
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};
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struct USBRedirDevice {
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USBDevice dev;
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/* Properties */
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CharBackend cs;
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bool enable_streams;
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bool suppress_remote_wake;
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bool in_write;
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uint8_t debug;
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int32_t bootindex;
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char *filter_str;
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/* Data passed from chardev the fd_read cb to the usbredirparser read cb */
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const uint8_t *read_buf;
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int read_buf_size;
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/* Active chardev-watch-tag */
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guint watch;
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/* For async handling of close / reject */
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QEMUBH *chardev_close_bh;
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QEMUBH *device_reject_bh;
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/* To delay the usb attach in case of quick chardev close + open */
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QEMUTimer *attach_timer;
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int64_t next_attach_time;
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struct usbredirparser *parser;
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struct endp_data endpoint[MAX_ENDPOINTS];
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struct PacketIdQueue cancelled;
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struct PacketIdQueue already_in_flight;
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void (*buffered_bulk_in_complete)(USBRedirDevice *, USBPacket *, uint8_t);
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/* Data for device filtering */
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struct usb_redir_device_connect_header device_info;
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struct usb_redir_interface_info_header interface_info;
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struct usbredirfilter_rule *filter_rules;
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int filter_rules_count;
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int compatible_speedmask;
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VMChangeStateEntry *vmstate;
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};
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#define TYPE_USB_REDIR "usb-redir"
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DECLARE_INSTANCE_CHECKER(USBRedirDevice, USB_REDIRECT,
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TYPE_USB_REDIR)
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static void usbredir_hello(void *priv, struct usb_redir_hello_header *h);
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static void usbredir_device_connect(void *priv,
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struct usb_redir_device_connect_header *device_connect);
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static void usbredir_device_disconnect(void *priv);
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static void usbredir_interface_info(void *priv,
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struct usb_redir_interface_info_header *interface_info);
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static void usbredir_ep_info(void *priv,
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struct usb_redir_ep_info_header *ep_info);
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static void usbredir_configuration_status(void *priv, uint64_t id,
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struct usb_redir_configuration_status_header *configuration_status);
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static void usbredir_alt_setting_status(void *priv, uint64_t id,
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struct usb_redir_alt_setting_status_header *alt_setting_status);
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static void usbredir_iso_stream_status(void *priv, uint64_t id,
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struct usb_redir_iso_stream_status_header *iso_stream_status);
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static void usbredir_interrupt_receiving_status(void *priv, uint64_t id,
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struct usb_redir_interrupt_receiving_status_header
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*interrupt_receiving_status);
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static void usbredir_bulk_streams_status(void *priv, uint64_t id,
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struct usb_redir_bulk_streams_status_header *bulk_streams_status);
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static void usbredir_bulk_receiving_status(void *priv, uint64_t id,
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struct usb_redir_bulk_receiving_status_header *bulk_receiving_status);
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static void usbredir_control_packet(void *priv, uint64_t id,
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struct usb_redir_control_packet_header *control_packet,
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uint8_t *data, int data_len);
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static void usbredir_bulk_packet(void *priv, uint64_t id,
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struct usb_redir_bulk_packet_header *bulk_packet,
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uint8_t *data, int data_len);
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static void usbredir_iso_packet(void *priv, uint64_t id,
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struct usb_redir_iso_packet_header *iso_packet,
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uint8_t *data, int data_len);
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static void usbredir_interrupt_packet(void *priv, uint64_t id,
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struct usb_redir_interrupt_packet_header *interrupt_header,
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uint8_t *data, int data_len);
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static void usbredir_buffered_bulk_packet(void *priv, uint64_t id,
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struct usb_redir_buffered_bulk_packet_header *buffered_bulk_packet,
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uint8_t *data, int data_len);
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static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p,
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int status);
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#define VERSION "qemu usb-redir guest " QEMU_VERSION
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/*
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* Logging stuff
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*/
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#define ERROR(...) \
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do { \
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if (dev->debug >= usbredirparser_error) { \
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error_report("usb-redir error: " __VA_ARGS__); \
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} \
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} while (0)
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#define WARNING(...) \
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do { \
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if (dev->debug >= usbredirparser_warning) { \
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warn_report("" __VA_ARGS__); \
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} \
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} while (0)
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#define INFO(...) \
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do { \
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if (dev->debug >= usbredirparser_info) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \
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} while (0)
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#define DPRINTF(...) \
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do { \
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if (dev->debug >= usbredirparser_debug) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \
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} while (0)
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#define DPRINTF2(...) \
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do { \
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if (dev->debug >= usbredirparser_debug_data) { \
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error_report("usb-redir: " __VA_ARGS__); \
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} \
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} while (0)
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static void usbredir_log(void *priv, int level, const char *msg)
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{
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USBRedirDevice *dev = priv;
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if (dev->debug < level) {
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return;
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}
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error_report("%s", msg);
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}
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static void usbredir_log_data(USBRedirDevice *dev, const char *desc,
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const uint8_t *data, int len)
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{
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if (dev->debug < usbredirparser_debug_data) {
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return;
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}
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qemu_hexdump(stderr, desc, data, len);
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}
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/*
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* usbredirparser io functions
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*/
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static int usbredir_read(void *priv, uint8_t *data, int count)
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{
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USBRedirDevice *dev = priv;
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if (dev->read_buf_size < count) {
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count = dev->read_buf_size;
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}
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memcpy(data, dev->read_buf, count);
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dev->read_buf_size -= count;
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if (dev->read_buf_size) {
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dev->read_buf += count;
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} else {
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dev->read_buf = NULL;
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}
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return count;
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}
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static gboolean usbredir_write_unblocked(GIOChannel *chan, GIOCondition cond,
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void *opaque)
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{
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USBRedirDevice *dev = opaque;
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dev->watch = 0;
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usbredirparser_do_write(dev->parser);
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return FALSE;
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}
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static int usbredir_write(void *priv, uint8_t *data, int count)
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{
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USBRedirDevice *dev = priv;
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int r;
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if (!qemu_chr_fe_backend_open(&dev->cs)) {
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return 0;
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}
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/* Don't send new data to the chardev until our state is fully synced */
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if (!runstate_check(RUN_STATE_RUNNING)) {
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return 0;
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}
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/* Recursion check */
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if (dev->in_write) {
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DPRINTF("usbredir_write recursion\n");
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return 0;
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}
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dev->in_write = true;
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r = qemu_chr_fe_write(&dev->cs, data, count);
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if (r < count) {
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if (!dev->watch) {
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dev->watch = qemu_chr_fe_add_watch(&dev->cs, G_IO_OUT | G_IO_HUP,
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usbredir_write_unblocked, dev);
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}
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if (r < 0) {
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r = 0;
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}
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}
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dev->in_write = false;
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return r;
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}
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/*
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* Cancelled and buffered packets helpers
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*/
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static void packet_id_queue_init(struct PacketIdQueue *q,
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USBRedirDevice *dev, const char *name)
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{
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q->dev = dev;
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q->name = name;
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QTAILQ_INIT(&q->head);
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q->size = 0;
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}
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static void packet_id_queue_add(struct PacketIdQueue *q, uint64_t id)
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{
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USBRedirDevice *dev = q->dev;
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struct PacketIdQueueEntry *e;
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DPRINTF("adding packet id %"PRIu64" to %s queue\n", id, q->name);
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e = g_new0(struct PacketIdQueueEntry, 1);
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e->id = id;
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QTAILQ_INSERT_TAIL(&q->head, e, next);
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q->size++;
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}
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static int packet_id_queue_remove(struct PacketIdQueue *q, uint64_t id)
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{
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USBRedirDevice *dev = q->dev;
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struct PacketIdQueueEntry *e;
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QTAILQ_FOREACH(e, &q->head, next) {
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if (e->id == id) {
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DPRINTF("removing packet id %"PRIu64" from %s queue\n",
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id, q->name);
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QTAILQ_REMOVE(&q->head, e, next);
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q->size--;
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g_free(e);
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return 1;
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}
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}
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return 0;
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}
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static void packet_id_queue_empty(struct PacketIdQueue *q)
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{
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USBRedirDevice *dev = q->dev;
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struct PacketIdQueueEntry *e, *next_e;
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DPRINTF("removing %d packet-ids from %s queue\n", q->size, q->name);
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QTAILQ_FOREACH_SAFE(e, &q->head, next, next_e) {
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QTAILQ_REMOVE(&q->head, e, next);
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g_free(e);
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}
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q->size = 0;
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}
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|
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static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p)
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{
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USBRedirDevice *dev = USB_REDIRECT(udev);
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int i = USBEP2I(p->ep);
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if (p->combined) {
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usb_combined_packet_cancel(udev, p);
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return;
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}
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|
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if (dev->endpoint[i].pending_async_packet) {
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assert(dev->endpoint[i].pending_async_packet == p);
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dev->endpoint[i].pending_async_packet = NULL;
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return;
|
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}
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packet_id_queue_add(&dev->cancelled, p->id);
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usbredirparser_send_cancel_data_packet(dev->parser, p->id);
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usbredirparser_do_write(dev->parser);
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}
|
|
|
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static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id)
|
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{
|
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if (!dev->dev.attached) {
|
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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,
|
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struct USBEndpoint *ep)
|
|
{
|
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static USBPacket *p;
|
|
|
|
/* async handled packets for bulk receiving eps do not count as inflight */
|
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if (dev->endpoint[USBEP2I(ep)].bulk_receiving_started) {
|
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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) {
|
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packet_id_queue_add(&dev->already_in_flight, p->id);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void usbredir_fill_already_in_flight(USBRedirDevice *dev)
|
|
{
|
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int ep;
|
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struct USBDevice *udev = &dev->dev;
|
|
|
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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(free_on_destroy);
|
|
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,
|
|
};
|
|
module_obj(TYPE_USB_REDIR);
|
|
|
|
static void usbredir_register_types(void)
|
|
{
|
|
type_register_static(&usbredir_dev_info);
|
|
}
|
|
|
|
type_init(usbredir_register_types)
|