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/*
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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-common.h" |
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#include "qemu/timer.h" |
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#include "monitor/monitor.h" |
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#include "sysemu/sysemu.h" |
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#include "qemu/iov.h" |
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#include <dirent.h> |
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#include <sys/ioctl.h> |
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#include <signal.h> |
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#include <usbredirparser.h> |
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#include <usbredirfilter.h> |
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#include "hw/usb.h" |
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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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typedef struct USBRedirDevice USBRedirDevice; |
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/* Struct to hold buffered packets (iso or int input packets) */
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struct buf_packet {
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uint8_t *data; |
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int len;
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int 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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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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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 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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}; |
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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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CharDriverState *cs; |
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uint8_t debug; |
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char *filter_str;
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int32_t bootindex; |
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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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/* For async handling of close */
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QEMUBH *chardev_close_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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/* 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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}; |
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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_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_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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error_report("usb-redir warning: " __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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int i, j, n;
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if (dev->debug < usbredirparser_debug_data) {
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return;
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} |
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for (i = 0; i < len; i += j) { |
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char buf[128]; |
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n = sprintf(buf, "%s", desc);
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for (j = 0; j < 8 && i + j < len; j++) { |
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n += sprintf(buf + n, " %02X", data[i + j]);
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} |
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error_report("%s", buf);
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} |
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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 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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if (!dev->cs->opened) {
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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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return qemu_chr_fe_write(dev->cs, data, count);
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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_malloc0(sizeof(struct PacketIdQueueEntry)); |
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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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static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) |
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{ |
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USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
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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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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 */ |
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} |
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return packet_id_queue_remove(&dev->cancelled, id);
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} |
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static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev, |
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struct USBEndpoint *ep)
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{ |
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static USBPacket *p;
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QTAILQ_FOREACH(p, &ep->queue, queue) { |
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/* Skip combined packets, except for the first */
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if (p->combined && p != p->combined->first) {
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continue;
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} |
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if (p->state == USB_PACKET_ASYNC) {
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packet_id_queue_add(&dev->already_in_flight, p->id); |
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} |
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} |
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} |
350 |
|
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static void usbredir_fill_already_in_flight(USBRedirDevice *dev) |
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{ |
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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); |
357 |
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for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
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usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_in[ep]); |
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usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_out[ep]); |
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} |
362 |
} |
363 |
|
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static int usbredir_already_in_flight(USBRedirDevice *dev, uint64_t id) |
365 |
{ |
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return packet_id_queue_remove(&dev->already_in_flight, id);
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} |
368 |
|
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static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev,
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uint8_t ep, uint64_t id) |
371 |
{ |
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USBPacket *p; |
373 |
|
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if (usbredir_is_cancelled(dev, id)) {
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return NULL; |
376 |
} |
377 |
|
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p = usb_ep_find_packet_by_id(&dev->dev, |
379 |
(ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT, |
380 |
ep & 0x0f, id);
|
381 |
if (p == NULL) { |
382 |
ERROR("could not find packet with id %"PRIu64"\n", id); |
383 |
} |
384 |
return p;
|
385 |
} |
386 |
|
387 |
static void bufp_alloc(USBRedirDevice *dev, |
388 |
uint8_t *data, int len, int status, uint8_t ep) |
389 |
{ |
390 |
struct buf_packet *bufp;
|
391 |
|
392 |
if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets &&
|
393 |
dev->endpoint[EP2I(ep)].bufpq_size > |
394 |
2 * dev->endpoint[EP2I(ep)].bufpq_target_size) {
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395 |
DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep);
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396 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1;
|
397 |
} |
398 |
/* Since we're interupting the stream anyways, drop enough packets to get
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399 |
back to our target buffer size */
|
400 |
if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) {
|
401 |
if (dev->endpoint[EP2I(ep)].bufpq_size >
|
402 |
dev->endpoint[EP2I(ep)].bufpq_target_size) { |
403 |
free(data); |
404 |
return;
|
405 |
} |
406 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
407 |
} |
408 |
|
409 |
bufp = g_malloc(sizeof(struct buf_packet)); |
410 |
bufp->data = data; |
411 |
bufp->len = len; |
412 |
bufp->status = status; |
413 |
QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
414 |
dev->endpoint[EP2I(ep)].bufpq_size++; |
415 |
} |
416 |
|
417 |
static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, |
418 |
uint8_t ep) |
419 |
{ |
420 |
QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
421 |
dev->endpoint[EP2I(ep)].bufpq_size--; |
422 |
free(bufp->data); |
423 |
g_free(bufp); |
424 |
} |
425 |
|
426 |
static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) |
427 |
{ |
428 |
struct buf_packet *buf, *buf_next;
|
429 |
|
430 |
QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) { |
431 |
bufp_free(dev, buf, ep); |
432 |
} |
433 |
} |
434 |
|
435 |
/*
|
436 |
* USBDevice callbacks
|
437 |
*/
|
438 |
|
439 |
static void usbredir_handle_reset(USBDevice *udev) |
440 |
{ |
441 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
442 |
|
443 |
DPRINTF("reset device\n");
|
444 |
usbredirparser_send_reset(dev->parser); |
445 |
usbredirparser_do_write(dev->parser); |
446 |
} |
447 |
|
448 |
static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, |
449 |
uint8_t ep) |
450 |
{ |
451 |
int status, len;
|
452 |
if (!dev->endpoint[EP2I(ep)].iso_started &&
|
453 |
!dev->endpoint[EP2I(ep)].iso_error) { |
454 |
struct usb_redir_start_iso_stream_header start_iso = {
|
455 |
.endpoint = ep, |
456 |
}; |
457 |
int pkts_per_sec;
|
458 |
|
459 |
if (dev->dev.speed == USB_SPEED_HIGH) {
|
460 |
pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval;
|
461 |
} else {
|
462 |
pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval;
|
463 |
} |
464 |
/* Testing has shown that we need circa 60 ms buffer */
|
465 |
dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; |
466 |
|
467 |
/* Aim for approx 100 interrupts / second on the client to
|
468 |
balance latency and interrupt load */
|
469 |
start_iso.pkts_per_urb = pkts_per_sec / 100;
|
470 |
if (start_iso.pkts_per_urb < 1) { |
471 |
start_iso.pkts_per_urb = 1;
|
472 |
} else if (start_iso.pkts_per_urb > 32) { |
473 |
start_iso.pkts_per_urb = 32;
|
474 |
} |
475 |
|
476 |
start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + |
477 |
start_iso.pkts_per_urb - 1) /
|
478 |
start_iso.pkts_per_urb; |
479 |
/* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
|
480 |
as overflow buffer. Also see the usbredir protocol documentation */
|
481 |
if (!(ep & USB_DIR_IN)) {
|
482 |
start_iso.no_urbs *= 2;
|
483 |
} |
484 |
if (start_iso.no_urbs > 16) { |
485 |
start_iso.no_urbs = 16;
|
486 |
} |
487 |
|
488 |
/* No id, we look at the ep when receiving a status back */
|
489 |
usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso);
|
490 |
usbredirparser_do_write(dev->parser); |
491 |
DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n",
|
492 |
pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); |
493 |
dev->endpoint[EP2I(ep)].iso_started = 1;
|
494 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
495 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
496 |
} |
497 |
|
498 |
if (ep & USB_DIR_IN) {
|
499 |
struct buf_packet *isop;
|
500 |
|
501 |
if (dev->endpoint[EP2I(ep)].iso_started &&
|
502 |
!dev->endpoint[EP2I(ep)].bufpq_prefilled) { |
503 |
if (dev->endpoint[EP2I(ep)].bufpq_size <
|
504 |
dev->endpoint[EP2I(ep)].bufpq_target_size) { |
505 |
return;
|
506 |
} |
507 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 1;
|
508 |
} |
509 |
|
510 |
isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
511 |
if (isop == NULL) { |
512 |
DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n",
|
513 |
ep, dev->endpoint[EP2I(ep)].iso_error); |
514 |
/* Re-fill the buffer */
|
515 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
516 |
/* Check iso_error for stream errors, otherwise its an underrun */
|
517 |
status = dev->endpoint[EP2I(ep)].iso_error; |
518 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
519 |
p->status = status ? USB_RET_IOERROR : USB_RET_SUCCESS; |
520 |
return;
|
521 |
} |
522 |
DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep,
|
523 |
isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); |
524 |
|
525 |
status = isop->status; |
526 |
len = isop->len; |
527 |
if (len > p->iov.size) {
|
528 |
ERROR("received iso data is larger then packet ep %02X (%d > %d)\n",
|
529 |
ep, len, (int)p->iov.size);
|
530 |
len = p->iov.size; |
531 |
status = usb_redir_babble; |
532 |
} |
533 |
usb_packet_copy(p, isop->data, len); |
534 |
bufp_free(dev, isop, ep); |
535 |
usbredir_handle_status(dev, p, status); |
536 |
} else {
|
537 |
/* If the stream was not started because of a pending error don't
|
538 |
send the packet to the usb-host */
|
539 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
540 |
struct usb_redir_iso_packet_header iso_packet = {
|
541 |
.endpoint = ep, |
542 |
.length = p->iov.size |
543 |
}; |
544 |
uint8_t buf[p->iov.size]; |
545 |
/* No id, we look at the ep when receiving a status back */
|
546 |
usb_packet_copy(p, buf, p->iov.size); |
547 |
usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet,
|
548 |
buf, p->iov.size); |
549 |
usbredirparser_do_write(dev->parser); |
550 |
} |
551 |
status = dev->endpoint[EP2I(ep)].iso_error; |
552 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
553 |
DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status,
|
554 |
p->iov.size); |
555 |
usbredir_handle_status(dev, p, status); |
556 |
} |
557 |
} |
558 |
|
559 |
static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
560 |
{ |
561 |
struct usb_redir_stop_iso_stream_header stop_iso_stream = {
|
562 |
.endpoint = ep |
563 |
}; |
564 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
565 |
usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream);
|
566 |
DPRINTF("iso stream stopped ep %02X\n", ep);
|
567 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
568 |
} |
569 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
570 |
usbredir_free_bufpq(dev, ep); |
571 |
} |
572 |
|
573 |
static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
574 |
uint8_t ep) |
575 |
{ |
576 |
struct usb_redir_bulk_packet_header bulk_packet;
|
577 |
size_t size = (p->combined) ? p->combined->iov.size : p->iov.size; |
578 |
|
579 |
DPRINTF("bulk-out ep %02X len %zd id %"PRIu64"\n", ep, size, p->id); |
580 |
|
581 |
if (usbredir_already_in_flight(dev, p->id)) {
|
582 |
p->status = USB_RET_ASYNC; |
583 |
return;
|
584 |
} |
585 |
|
586 |
bulk_packet.endpoint = ep; |
587 |
bulk_packet.length = size; |
588 |
bulk_packet.stream_id = 0;
|
589 |
bulk_packet.length_high = size >> 16;
|
590 |
assert(bulk_packet.length_high == 0 ||
|
591 |
usbredirparser_peer_has_cap(dev->parser, |
592 |
usb_redir_cap_32bits_bulk_length)); |
593 |
|
594 |
if (ep & USB_DIR_IN) {
|
595 |
usbredirparser_send_bulk_packet(dev->parser, p->id, |
596 |
&bulk_packet, NULL, 0); |
597 |
} else {
|
598 |
uint8_t buf[size]; |
599 |
if (p->combined) {
|
600 |
iov_to_buf(p->combined->iov.iov, p->combined->iov.niov, |
601 |
0, buf, size);
|
602 |
} else {
|
603 |
usb_packet_copy(p, buf, size); |
604 |
} |
605 |
usbredir_log_data(dev, "bulk data out:", buf, size);
|
606 |
usbredirparser_send_bulk_packet(dev->parser, p->id, |
607 |
&bulk_packet, buf, size); |
608 |
} |
609 |
usbredirparser_do_write(dev->parser); |
610 |
p->status = USB_RET_ASYNC; |
611 |
} |
612 |
|
613 |
static void usbredir_handle_interrupt_in_data(USBRedirDevice *dev, |
614 |
USBPacket *p, uint8_t ep) |
615 |
{ |
616 |
/* Input interrupt endpoint, buffered packet input */
|
617 |
struct buf_packet *intp;
|
618 |
int status, len;
|
619 |
|
620 |
if (!dev->endpoint[EP2I(ep)].interrupt_started &&
|
621 |
!dev->endpoint[EP2I(ep)].interrupt_error) { |
622 |
struct usb_redir_start_interrupt_receiving_header start_int = {
|
623 |
.endpoint = ep, |
624 |
}; |
625 |
/* No id, we look at the ep when receiving a status back */
|
626 |
usbredirparser_send_start_interrupt_receiving(dev->parser, 0,
|
627 |
&start_int); |
628 |
usbredirparser_do_write(dev->parser); |
629 |
DPRINTF("interrupt recv started ep %02X\n", ep);
|
630 |
dev->endpoint[EP2I(ep)].interrupt_started = 1;
|
631 |
/* We don't really want to drop interrupt packets ever, but
|
632 |
having some upper limit to how much we buffer is good. */
|
633 |
dev->endpoint[EP2I(ep)].bufpq_target_size = 1000;
|
634 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
635 |
} |
636 |
|
637 |
intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
638 |
if (intp == NULL) { |
639 |
DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep);
|
640 |
/* Check interrupt_error for stream errors */
|
641 |
status = dev->endpoint[EP2I(ep)].interrupt_error; |
642 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
643 |
if (status) {
|
644 |
usbredir_handle_status(dev, p, status); |
645 |
} else {
|
646 |
p->status = USB_RET_NAK; |
647 |
} |
648 |
return;
|
649 |
} |
650 |
DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,
|
651 |
intp->status, intp->len); |
652 |
|
653 |
status = intp->status; |
654 |
len = intp->len; |
655 |
if (len > p->iov.size) {
|
656 |
ERROR("received int data is larger then packet ep %02X\n", ep);
|
657 |
len = p->iov.size; |
658 |
status = usb_redir_babble; |
659 |
} |
660 |
usb_packet_copy(p, intp->data, len); |
661 |
bufp_free(dev, intp, ep); |
662 |
usbredir_handle_status(dev, p, status); |
663 |
} |
664 |
|
665 |
/*
|
666 |
* Handle interrupt out data, the usbredir protocol expects us to do this
|
667 |
* async, so that it can report back a completion status. But guests will
|
668 |
* expect immediate completion for an interrupt endpoint, and handling this
|
669 |
* async causes migration issues. So we report success directly, counting
|
670 |
* on the fact that output interrupt packets normally always succeed.
|
671 |
*/
|
672 |
static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, |
673 |
USBPacket *p, uint8_t ep) |
674 |
{ |
675 |
struct usb_redir_interrupt_packet_header interrupt_packet;
|
676 |
uint8_t buf[p->iov.size]; |
677 |
|
678 |
DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, |
679 |
p->iov.size, p->id); |
680 |
|
681 |
interrupt_packet.endpoint = ep; |
682 |
interrupt_packet.length = p->iov.size; |
683 |
|
684 |
usb_packet_copy(p, buf, p->iov.size); |
685 |
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
|
686 |
usbredirparser_send_interrupt_packet(dev->parser, p->id, |
687 |
&interrupt_packet, buf, p->iov.size); |
688 |
usbredirparser_do_write(dev->parser); |
689 |
} |
690 |
|
691 |
static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
692 |
uint8_t ep) |
693 |
{ |
694 |
struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = {
|
695 |
.endpoint = ep |
696 |
}; |
697 |
if (dev->endpoint[EP2I(ep)].interrupt_started) {
|
698 |
usbredirparser_send_stop_interrupt_receiving(dev->parser, 0,
|
699 |
&stop_interrupt_recv); |
700 |
DPRINTF("interrupt recv stopped ep %02X\n", ep);
|
701 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
702 |
} |
703 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
704 |
usbredir_free_bufpq(dev, ep); |
705 |
} |
706 |
|
707 |
static void usbredir_handle_data(USBDevice *udev, USBPacket *p) |
708 |
{ |
709 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
710 |
uint8_t ep; |
711 |
|
712 |
ep = p->ep->nr; |
713 |
if (p->pid == USB_TOKEN_IN) {
|
714 |
ep |= USB_DIR_IN; |
715 |
} |
716 |
|
717 |
switch (dev->endpoint[EP2I(ep)].type) {
|
718 |
case USB_ENDPOINT_XFER_CONTROL:
|
719 |
ERROR("handle_data called for control transfer on ep %02X\n", ep);
|
720 |
p->status = USB_RET_NAK; |
721 |
break;
|
722 |
case USB_ENDPOINT_XFER_ISOC:
|
723 |
usbredir_handle_iso_data(dev, p, ep); |
724 |
break;
|
725 |
case USB_ENDPOINT_XFER_BULK:
|
726 |
if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN &&
|
727 |
p->ep->pipeline) { |
728 |
p->status = USB_RET_ADD_TO_QUEUE; |
729 |
break;
|
730 |
} |
731 |
usbredir_handle_bulk_data(dev, p, ep); |
732 |
break;
|
733 |
case USB_ENDPOINT_XFER_INT:
|
734 |
if (ep & USB_DIR_IN) {
|
735 |
usbredir_handle_interrupt_in_data(dev, p, ep); |
736 |
} else {
|
737 |
usbredir_handle_interrupt_out_data(dev, p, ep); |
738 |
} |
739 |
break;
|
740 |
default:
|
741 |
ERROR("handle_data ep %02X has unknown type %d\n", ep,
|
742 |
dev->endpoint[EP2I(ep)].type); |
743 |
p->status = USB_RET_NAK; |
744 |
} |
745 |
} |
746 |
|
747 |
static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) |
748 |
{ |
749 |
if (ep->pid == USB_TOKEN_IN && ep->pipeline) {
|
750 |
usb_ep_combine_input_packets(ep); |
751 |
} |
752 |
} |
753 |
|
754 |
static void usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
755 |
int config)
|
756 |
{ |
757 |
struct usb_redir_set_configuration_header set_config;
|
758 |
int i;
|
759 |
|
760 |
DPRINTF("set config %d id %"PRIu64"\n", config, p->id); |
761 |
|
762 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
763 |
switch (dev->endpoint[i].type) {
|
764 |
case USB_ENDPOINT_XFER_ISOC:
|
765 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
766 |
break;
|
767 |
case USB_ENDPOINT_XFER_INT:
|
768 |
if (i & 0x10) { |
769 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
770 |
} |
771 |
break;
|
772 |
} |
773 |
usbredir_free_bufpq(dev, I2EP(i)); |
774 |
} |
775 |
|
776 |
set_config.configuration = config; |
777 |
usbredirparser_send_set_configuration(dev->parser, p->id, &set_config); |
778 |
usbredirparser_do_write(dev->parser); |
779 |
p->status = USB_RET_ASYNC; |
780 |
} |
781 |
|
782 |
static void usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
783 |
{ |
784 |
DPRINTF("get config id %"PRIu64"\n", p->id); |
785 |
|
786 |
usbredirparser_send_get_configuration(dev->parser, p->id); |
787 |
usbredirparser_do_write(dev->parser); |
788 |
p->status = USB_RET_ASYNC; |
789 |
} |
790 |
|
791 |
static void usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
792 |
int interface, int alt) |
793 |
{ |
794 |
struct usb_redir_set_alt_setting_header set_alt;
|
795 |
int i;
|
796 |
|
797 |
DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id); |
798 |
|
799 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
800 |
if (dev->endpoint[i].interface == interface) {
|
801 |
switch (dev->endpoint[i].type) {
|
802 |
case USB_ENDPOINT_XFER_ISOC:
|
803 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
804 |
break;
|
805 |
case USB_ENDPOINT_XFER_INT:
|
806 |
if (i & 0x10) { |
807 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
808 |
} |
809 |
break;
|
810 |
} |
811 |
usbredir_free_bufpq(dev, I2EP(i)); |
812 |
} |
813 |
} |
814 |
|
815 |
set_alt.interface = interface; |
816 |
set_alt.alt = alt; |
817 |
usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt); |
818 |
usbredirparser_do_write(dev->parser); |
819 |
p->status = USB_RET_ASYNC; |
820 |
} |
821 |
|
822 |
static void usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
823 |
int interface)
|
824 |
{ |
825 |
struct usb_redir_get_alt_setting_header get_alt;
|
826 |
|
827 |
DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id); |
828 |
|
829 |
get_alt.interface = interface; |
830 |
usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt); |
831 |
usbredirparser_do_write(dev->parser); |
832 |
p->status = USB_RET_ASYNC; |
833 |
} |
834 |
|
835 |
static void usbredir_handle_control(USBDevice *udev, USBPacket *p, |
836 |
int request, int value, int index, int length, uint8_t *data) |
837 |
{ |
838 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
839 |
struct usb_redir_control_packet_header control_packet;
|
840 |
|
841 |
if (usbredir_already_in_flight(dev, p->id)) {
|
842 |
p->status = USB_RET_ASYNC; |
843 |
return;
|
844 |
} |
845 |
|
846 |
/* Special cases for certain standard device requests */
|
847 |
switch (request) {
|
848 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
849 |
DPRINTF("set address %d\n", value);
|
850 |
dev->dev.addr = value; |
851 |
return;
|
852 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
853 |
usbredir_set_config(dev, p, value & 0xff);
|
854 |
return;
|
855 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
856 |
usbredir_get_config(dev, p); |
857 |
return;
|
858 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
859 |
usbredir_set_interface(dev, p, index, value); |
860 |
return;
|
861 |
case InterfaceRequest | USB_REQ_GET_INTERFACE:
|
862 |
usbredir_get_interface(dev, p, index); |
863 |
return;
|
864 |
} |
865 |
|
866 |
/* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */
|
867 |
DPRINTF( |
868 |
"ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n", |
869 |
request >> 8, request & 0xff, value, index, length, p->id); |
870 |
|
871 |
control_packet.request = request & 0xFF;
|
872 |
control_packet.requesttype = request >> 8;
|
873 |
control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
874 |
control_packet.value = value; |
875 |
control_packet.index = index; |
876 |
control_packet.length = length; |
877 |
|
878 |
if (control_packet.requesttype & USB_DIR_IN) {
|
879 |
usbredirparser_send_control_packet(dev->parser, p->id, |
880 |
&control_packet, NULL, 0); |
881 |
} else {
|
882 |
usbredir_log_data(dev, "ctrl data out:", data, length);
|
883 |
usbredirparser_send_control_packet(dev->parser, p->id, |
884 |
&control_packet, data, length); |
885 |
} |
886 |
usbredirparser_do_write(dev->parser); |
887 |
p->status = USB_RET_ASYNC; |
888 |
} |
889 |
|
890 |
/*
|
891 |
* Close events can be triggered by usbredirparser_do_write which gets called
|
892 |
* from within the USBDevice data / control packet callbacks and doing a
|
893 |
* usb_detach from within these callbacks is not a good idea.
|
894 |
*
|
895 |
* So we use a bh handler to take care of close events.
|
896 |
*/
|
897 |
static void usbredir_chardev_close_bh(void *opaque) |
898 |
{ |
899 |
USBRedirDevice *dev = opaque; |
900 |
|
901 |
usbredir_device_disconnect(dev); |
902 |
|
903 |
if (dev->parser) {
|
904 |
DPRINTF("destroying usbredirparser\n");
|
905 |
usbredirparser_destroy(dev->parser); |
906 |
dev->parser = NULL;
|
907 |
} |
908 |
} |
909 |
|
910 |
static void usbredir_create_parser(USBRedirDevice *dev) |
911 |
{ |
912 |
uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, };
|
913 |
int flags = 0; |
914 |
|
915 |
DPRINTF("creating usbredirparser\n");
|
916 |
|
917 |
dev->parser = qemu_oom_check(usbredirparser_create()); |
918 |
dev->parser->priv = dev; |
919 |
dev->parser->log_func = usbredir_log; |
920 |
dev->parser->read_func = usbredir_read; |
921 |
dev->parser->write_func = usbredir_write; |
922 |
dev->parser->hello_func = usbredir_hello; |
923 |
dev->parser->device_connect_func = usbredir_device_connect; |
924 |
dev->parser->device_disconnect_func = usbredir_device_disconnect; |
925 |
dev->parser->interface_info_func = usbredir_interface_info; |
926 |
dev->parser->ep_info_func = usbredir_ep_info; |
927 |
dev->parser->configuration_status_func = usbredir_configuration_status; |
928 |
dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
929 |
dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
930 |
dev->parser->interrupt_receiving_status_func = |
931 |
usbredir_interrupt_receiving_status; |
932 |
dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
933 |
dev->parser->control_packet_func = usbredir_control_packet; |
934 |
dev->parser->bulk_packet_func = usbredir_bulk_packet; |
935 |
dev->parser->iso_packet_func = usbredir_iso_packet; |
936 |
dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
937 |
dev->read_buf = NULL;
|
938 |
dev->read_buf_size = 0;
|
939 |
|
940 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); |
941 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); |
942 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size); |
943 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids); |
944 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_32bits_bulk_length); |
945 |
|
946 |
if (runstate_check(RUN_STATE_INMIGRATE)) {
|
947 |
flags |= usbredirparser_fl_no_hello; |
948 |
} |
949 |
usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, |
950 |
flags); |
951 |
usbredirparser_do_write(dev->parser); |
952 |
} |
953 |
|
954 |
static void usbredir_reject_device(USBRedirDevice *dev) |
955 |
{ |
956 |
usbredir_device_disconnect(dev); |
957 |
if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) {
|
958 |
usbredirparser_send_filter_reject(dev->parser); |
959 |
usbredirparser_do_write(dev->parser); |
960 |
} |
961 |
} |
962 |
|
963 |
static void usbredir_do_attach(void *opaque) |
964 |
{ |
965 |
USBRedirDevice *dev = opaque; |
966 |
|
967 |
/* In order to work properly with XHCI controllers we need these caps */
|
968 |
if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !(
|
969 |
usbredirparser_peer_has_cap(dev->parser, |
970 |
usb_redir_cap_ep_info_max_packet_size) && |
971 |
usbredirparser_peer_has_cap(dev->parser, |
972 |
usb_redir_cap_64bits_ids))) { |
973 |
ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n");
|
974 |
usbredir_reject_device(dev); |
975 |
return;
|
976 |
} |
977 |
|
978 |
if (usb_device_attach(&dev->dev) != 0) { |
979 |
WARNING("rejecting device due to speed mismatch\n");
|
980 |
usbredir_reject_device(dev); |
981 |
} |
982 |
} |
983 |
|
984 |
/*
|
985 |
* chardev callbacks
|
986 |
*/
|
987 |
|
988 |
static int usbredir_chardev_can_read(void *opaque) |
989 |
{ |
990 |
USBRedirDevice *dev = opaque; |
991 |
|
992 |
if (!dev->parser) {
|
993 |
WARNING("chardev_can_read called on non open chardev!\n");
|
994 |
return 0; |
995 |
} |
996 |
|
997 |
/* Don't read new data from the chardev until our state is fully synced */
|
998 |
if (!runstate_check(RUN_STATE_RUNNING)) {
|
999 |
return 0; |
1000 |
} |
1001 |
|
1002 |
/* usbredir_parser_do_read will consume *all* data we give it */
|
1003 |
return 1024 * 1024; |
1004 |
} |
1005 |
|
1006 |
static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
1007 |
{ |
1008 |
USBRedirDevice *dev = opaque; |
1009 |
|
1010 |
/* No recursion allowed! */
|
1011 |
assert(dev->read_buf == NULL);
|
1012 |
|
1013 |
dev->read_buf = buf; |
1014 |
dev->read_buf_size = size; |
1015 |
|
1016 |
usbredirparser_do_read(dev->parser); |
1017 |
/* Send any acks, etc. which may be queued now */
|
1018 |
usbredirparser_do_write(dev->parser); |
1019 |
} |
1020 |
|
1021 |
static void usbredir_chardev_event(void *opaque, int event) |
1022 |
{ |
1023 |
USBRedirDevice *dev = opaque; |
1024 |
|
1025 |
switch (event) {
|
1026 |
case CHR_EVENT_OPENED:
|
1027 |
DPRINTF("chardev open\n");
|
1028 |
/* Make sure any pending closes are handled (no-op if none pending) */
|
1029 |
usbredir_chardev_close_bh(dev); |
1030 |
qemu_bh_cancel(dev->chardev_close_bh); |
1031 |
usbredir_create_parser(dev); |
1032 |
break;
|
1033 |
case CHR_EVENT_CLOSED:
|
1034 |
DPRINTF("chardev close\n");
|
1035 |
qemu_bh_schedule(dev->chardev_close_bh); |
1036 |
break;
|
1037 |
} |
1038 |
} |
1039 |
|
1040 |
/*
|
1041 |
* init + destroy
|
1042 |
*/
|
1043 |
|
1044 |
static void usbredir_vm_state_change(void *priv, int running, RunState state) |
1045 |
{ |
1046 |
USBRedirDevice *dev = priv; |
1047 |
|
1048 |
if (state == RUN_STATE_RUNNING && dev->parser != NULL) { |
1049 |
usbredirparser_do_write(dev->parser); /* Flush any pending writes */
|
1050 |
} |
1051 |
} |
1052 |
|
1053 |
static int usbredir_initfn(USBDevice *udev) |
1054 |
{ |
1055 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
1056 |
int i;
|
1057 |
|
1058 |
if (dev->cs == NULL) { |
1059 |
qerror_report(QERR_MISSING_PARAMETER, "chardev");
|
1060 |
return -1; |
1061 |
} |
1062 |
|
1063 |
if (dev->filter_str) {
|
1064 |
i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", |
1065 |
&dev->filter_rules, |
1066 |
&dev->filter_rules_count); |
1067 |
if (i) {
|
1068 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "filter",
|
1069 |
"a usb device filter string");
|
1070 |
return -1; |
1071 |
} |
1072 |
} |
1073 |
|
1074 |
dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev); |
1075 |
dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); |
1076 |
|
1077 |
packet_id_queue_init(&dev->cancelled, dev, "cancelled");
|
1078 |
packet_id_queue_init(&dev->already_in_flight, dev, "already-in-flight");
|
1079 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1080 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
1081 |
} |
1082 |
|
1083 |
/* We'll do the attach once we receive the speed from the usb-host */
|
1084 |
udev->auto_attach = 0;
|
1085 |
|
1086 |
/* Will be cleared during setup when we find conflicts */
|
1087 |
dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; |
1088 |
|
1089 |
/* Let the backend know we are ready */
|
1090 |
qemu_chr_fe_open(dev->cs); |
1091 |
qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, |
1092 |
usbredir_chardev_read, usbredir_chardev_event, dev); |
1093 |
|
1094 |
qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); |
1095 |
add_boot_device_path(dev->bootindex, &udev->qdev, NULL);
|
1096 |
return 0; |
1097 |
} |
1098 |
|
1099 |
static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
1100 |
{ |
1101 |
int i;
|
1102 |
|
1103 |
packet_id_queue_empty(&dev->cancelled); |
1104 |
packet_id_queue_empty(&dev->already_in_flight); |
1105 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1106 |
usbredir_free_bufpq(dev, I2EP(i)); |
1107 |
} |
1108 |
} |
1109 |
|
1110 |
static void usbredir_handle_destroy(USBDevice *udev) |
1111 |
{ |
1112 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
1113 |
|
1114 |
qemu_chr_fe_close(dev->cs); |
1115 |
qemu_chr_delete(dev->cs); |
1116 |
/* Note must be done after qemu_chr_close, as that causes a close event */
|
1117 |
qemu_bh_delete(dev->chardev_close_bh); |
1118 |
|
1119 |
qemu_del_timer(dev->attach_timer); |
1120 |
qemu_free_timer(dev->attach_timer); |
1121 |
|
1122 |
usbredir_cleanup_device_queues(dev); |
1123 |
|
1124 |
if (dev->parser) {
|
1125 |
usbredirparser_destroy(dev->parser); |
1126 |
} |
1127 |
|
1128 |
free(dev->filter_rules); |
1129 |
} |
1130 |
|
1131 |
static int usbredir_check_filter(USBRedirDevice *dev) |
1132 |
{ |
1133 |
if (dev->interface_info.interface_count == NO_INTERFACE_INFO) {
|
1134 |
ERROR("No interface info for device\n");
|
1135 |
goto error;
|
1136 |
} |
1137 |
|
1138 |
if (dev->filter_rules) {
|
1139 |
if (!usbredirparser_peer_has_cap(dev->parser,
|
1140 |
usb_redir_cap_connect_device_version)) { |
1141 |
ERROR("Device filter specified and peer does not have the "
|
1142 |
"connect_device_version capability\n");
|
1143 |
goto error;
|
1144 |
} |
1145 |
|
1146 |
if (usbredirfilter_check(
|
1147 |
dev->filter_rules, |
1148 |
dev->filter_rules_count, |
1149 |
dev->device_info.device_class, |
1150 |
dev->device_info.device_subclass, |
1151 |
dev->device_info.device_protocol, |
1152 |
dev->interface_info.interface_class, |
1153 |
dev->interface_info.interface_subclass, |
1154 |
dev->interface_info.interface_protocol, |
1155 |
dev->interface_info.interface_count, |
1156 |
dev->device_info.vendor_id, |
1157 |
dev->device_info.product_id, |
1158 |
dev->device_info.device_version_bcd, |
1159 |
0) != 0) { |
1160 |
goto error;
|
1161 |
} |
1162 |
} |
1163 |
|
1164 |
return 0; |
1165 |
|
1166 |
error:
|
1167 |
usbredir_reject_device(dev); |
1168 |
return -1; |
1169 |
} |
1170 |
|
1171 |
/*
|
1172 |
* usbredirparser packet complete callbacks
|
1173 |
*/
|
1174 |
|
1175 |
static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, |
1176 |
int status)
|
1177 |
{ |
1178 |
switch (status) {
|
1179 |
case usb_redir_success:
|
1180 |
p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */
|
1181 |
break;
|
1182 |
case usb_redir_stall:
|
1183 |
p->status = USB_RET_STALL; |
1184 |
break;
|
1185 |
case usb_redir_cancelled:
|
1186 |
/*
|
1187 |
* When the usbredir-host unredirects a device, it will report a status
|
1188 |
* of cancelled for all pending packets, followed by a disconnect msg.
|
1189 |
*/
|
1190 |
p->status = USB_RET_IOERROR; |
1191 |
break;
|
1192 |
case usb_redir_inval:
|
1193 |
WARNING("got invalid param error from usb-host?\n");
|
1194 |
p->status = USB_RET_IOERROR; |
1195 |
break;
|
1196 |
case usb_redir_babble:
|
1197 |
p->status = USB_RET_BABBLE; |
1198 |
break;
|
1199 |
case usb_redir_ioerror:
|
1200 |
case usb_redir_timeout:
|
1201 |
default:
|
1202 |
p->status = USB_RET_IOERROR; |
1203 |
} |
1204 |
} |
1205 |
|
1206 |
static void usbredir_hello(void *priv, struct usb_redir_hello_header *h) |
1207 |
{ |
1208 |
USBRedirDevice *dev = priv; |
1209 |
|
1210 |
/* Try to send the filter info now that we've the usb-host's caps */
|
1211 |
if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter) &&
|
1212 |
dev->filter_rules) { |
1213 |
usbredirparser_send_filter_filter(dev->parser, dev->filter_rules, |
1214 |
dev->filter_rules_count); |
1215 |
usbredirparser_do_write(dev->parser); |
1216 |
} |
1217 |
} |
1218 |
|
1219 |
static void usbredir_device_connect(void *priv, |
1220 |
struct usb_redir_device_connect_header *device_connect)
|
1221 |
{ |
1222 |
USBRedirDevice *dev = priv; |
1223 |
const char *speed; |
1224 |
|
1225 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1226 |
ERROR("Received device connect while already connected\n");
|
1227 |
return;
|
1228 |
} |
1229 |
|
1230 |
switch (device_connect->speed) {
|
1231 |
case usb_redir_speed_low:
|
1232 |
speed = "low speed";
|
1233 |
dev->dev.speed = USB_SPEED_LOW; |
1234 |
dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL; |
1235 |
dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; |
1236 |
break;
|
1237 |
case usb_redir_speed_full:
|
1238 |
speed = "full speed";
|
1239 |
dev->dev.speed = USB_SPEED_FULL; |
1240 |
dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; |
1241 |
break;
|
1242 |
case usb_redir_speed_high:
|
1243 |
speed = "high speed";
|
1244 |
dev->dev.speed = USB_SPEED_HIGH; |
1245 |
break;
|
1246 |
case usb_redir_speed_super:
|
1247 |
speed = "super speed";
|
1248 |
dev->dev.speed = USB_SPEED_SUPER; |
1249 |
break;
|
1250 |
default:
|
1251 |
speed = "unknown speed";
|
1252 |
dev->dev.speed = USB_SPEED_FULL; |
1253 |
} |
1254 |
|
1255 |
if (usbredirparser_peer_has_cap(dev->parser,
|
1256 |
usb_redir_cap_connect_device_version)) { |
1257 |
INFO("attaching %s device %04x:%04x version %d.%d class %02x\n",
|
1258 |
speed, device_connect->vendor_id, device_connect->product_id, |
1259 |
((device_connect->device_version_bcd & 0xf000) >> 12) * 10 + |
1260 |
((device_connect->device_version_bcd & 0x0f00) >> 8), |
1261 |
((device_connect->device_version_bcd & 0x00f0) >> 4) * 10 + |
1262 |
((device_connect->device_version_bcd & 0x000f) >> 0), |
1263 |
device_connect->device_class); |
1264 |
} else {
|
1265 |
INFO("attaching %s device %04x:%04x class %02x\n", speed,
|
1266 |
device_connect->vendor_id, device_connect->product_id, |
1267 |
device_connect->device_class); |
1268 |
} |
1269 |
|
1270 |
dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask;
|
1271 |
dev->device_info = *device_connect; |
1272 |
|
1273 |
if (usbredir_check_filter(dev)) {
|
1274 |
WARNING("Device %04x:%04x rejected by device filter, not attaching\n",
|
1275 |
device_connect->vendor_id, device_connect->product_id); |
1276 |
return;
|
1277 |
} |
1278 |
|
1279 |
qemu_mod_timer(dev->attach_timer, dev->next_attach_time); |
1280 |
} |
1281 |
|
1282 |
static void usbredir_device_disconnect(void *priv) |
1283 |
{ |
1284 |
USBRedirDevice *dev = priv; |
1285 |
int i;
|
1286 |
|
1287 |
/* Stop any pending attaches */
|
1288 |
qemu_del_timer(dev->attach_timer); |
1289 |
|
1290 |
if (dev->dev.attached) {
|
1291 |
DPRINTF("detaching device\n");
|
1292 |
usb_device_detach(&dev->dev); |
1293 |
/*
|
1294 |
* Delay next usb device attach to give the guest a chance to see
|
1295 |
* see the detach / attach in case of quick close / open succession
|
1296 |
*/
|
1297 |
dev->next_attach_time = qemu_get_clock_ms(vm_clock) + 200;
|
1298 |
} |
1299 |
|
1300 |
/* Reset state so that the next dev connected starts with a clean slate */
|
1301 |
usbredir_cleanup_device_queues(dev); |
1302 |
memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
1303 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1304 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
1305 |
} |
1306 |
usb_ep_init(&dev->dev); |
1307 |
dev->interface_info.interface_count = NO_INTERFACE_INFO; |
1308 |
dev->dev.addr = 0;
|
1309 |
dev->dev.speed = 0;
|
1310 |
dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; |
1311 |
} |
1312 |
|
1313 |
static void usbredir_interface_info(void *priv, |
1314 |
struct usb_redir_interface_info_header *interface_info)
|
1315 |
{ |
1316 |
USBRedirDevice *dev = priv; |
1317 |
|
1318 |
dev->interface_info = *interface_info; |
1319 |
|
1320 |
/*
|
1321 |
* If we receive interface info after the device has already been
|
1322 |
* connected (ie on a set_config), re-check the filter.
|
1323 |
*/
|
1324 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1325 |
if (usbredir_check_filter(dev)) {
|
1326 |
ERROR("Device no longer matches filter after interface info "
|
1327 |
"change, disconnecting!\n");
|
1328 |
} |
1329 |
} |
1330 |
} |
1331 |
|
1332 |
static void usbredir_mark_speed_incompatible(USBRedirDevice *dev, int speed) |
1333 |
{ |
1334 |
dev->compatible_speedmask &= ~(1 << speed);
|
1335 |
dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask;
|
1336 |
} |
1337 |
|
1338 |
static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep) |
1339 |
{ |
1340 |
if (uep->type != USB_ENDPOINT_XFER_BULK) {
|
1341 |
return;
|
1342 |
} |
1343 |
if (uep->pid == USB_TOKEN_OUT) {
|
1344 |
uep->pipeline = true;
|
1345 |
} |
1346 |
if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 && |
1347 |
usbredirparser_peer_has_cap(dev->parser, |
1348 |
usb_redir_cap_32bits_bulk_length)) { |
1349 |
uep->pipeline = true;
|
1350 |
} |
1351 |
} |
1352 |
|
1353 |
static void usbredir_setup_usb_eps(USBRedirDevice *dev) |
1354 |
{ |
1355 |
struct USBEndpoint *usb_ep;
|
1356 |
int i, pid;
|
1357 |
|
1358 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1359 |
pid = (i & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT;
|
1360 |
usb_ep = usb_ep_get(&dev->dev, pid, i & 0x0f);
|
1361 |
usb_ep->type = dev->endpoint[i].type; |
1362 |
usb_ep->ifnum = dev->endpoint[i].interface; |
1363 |
usb_ep->max_packet_size = dev->endpoint[i].max_packet_size; |
1364 |
usbredir_set_pipeline(dev, usb_ep); |
1365 |
} |
1366 |
} |
1367 |
|
1368 |
static void usbredir_ep_info(void *priv, |
1369 |
struct usb_redir_ep_info_header *ep_info)
|
1370 |
{ |
1371 |
USBRedirDevice *dev = priv; |
1372 |
int i;
|
1373 |
|
1374 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1375 |
dev->endpoint[i].type = ep_info->type[i]; |
1376 |
dev->endpoint[i].interval = ep_info->interval[i]; |
1377 |
dev->endpoint[i].interface = ep_info->interface[i]; |
1378 |
if (usbredirparser_peer_has_cap(dev->parser,
|
1379 |
usb_redir_cap_ep_info_max_packet_size)) { |
1380 |
dev->endpoint[i].max_packet_size = ep_info->max_packet_size[i]; |
1381 |
} |
1382 |
switch (dev->endpoint[i].type) {
|
1383 |
case usb_redir_type_invalid:
|
1384 |
break;
|
1385 |
case usb_redir_type_iso:
|
1386 |
usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); |
1387 |
usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); |
1388 |
/* Fall through */
|
1389 |
case usb_redir_type_interrupt:
|
1390 |
if (!usbredirparser_peer_has_cap(dev->parser,
|
1391 |
usb_redir_cap_ep_info_max_packet_size) || |
1392 |
ep_info->max_packet_size[i] > 64) {
|
1393 |
usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); |
1394 |
} |
1395 |
if (!usbredirparser_peer_has_cap(dev->parser,
|
1396 |
usb_redir_cap_ep_info_max_packet_size) || |
1397 |
ep_info->max_packet_size[i] > 1024) {
|
1398 |
usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); |
1399 |
} |
1400 |
if (dev->endpoint[i].interval == 0) { |
1401 |
ERROR("Received 0 interval for isoc or irq endpoint\n");
|
1402 |
usbredir_reject_device(dev); |
1403 |
return;
|
1404 |
} |
1405 |
/* Fall through */
|
1406 |
case usb_redir_type_control:
|
1407 |
case usb_redir_type_bulk:
|
1408 |
DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i),
|
1409 |
dev->endpoint[i].type, dev->endpoint[i].interface); |
1410 |
break;
|
1411 |
default:
|
1412 |
ERROR("Received invalid endpoint type\n");
|
1413 |
usbredir_reject_device(dev); |
1414 |
return;
|
1415 |
} |
1416 |
} |
1417 |
/* The new ep info may have caused a speed incompatibility, recheck */
|
1418 |
if (dev->dev.attached &&
|
1419 |
!(dev->dev.port->speedmask & dev->dev.speedmask)) { |
1420 |
ERROR("Device no longer matches speed after endpoint info change, "
|
1421 |
"disconnecting!\n");
|
1422 |
usbredir_reject_device(dev); |
1423 |
return;
|
1424 |
} |
1425 |
usbredir_setup_usb_eps(dev); |
1426 |
} |
1427 |
|
1428 |
static void usbredir_configuration_status(void *priv, uint64_t id, |
1429 |
struct usb_redir_configuration_status_header *config_status)
|
1430 |
{ |
1431 |
USBRedirDevice *dev = priv; |
1432 |
USBPacket *p; |
1433 |
|
1434 |
DPRINTF("set config status %d config %d id %"PRIu64"\n", |
1435 |
config_status->status, config_status->configuration, id); |
1436 |
|
1437 |
p = usbredir_find_packet_by_id(dev, 0, id);
|
1438 |
if (p) {
|
1439 |
if (dev->dev.setup_buf[0] & USB_DIR_IN) { |
1440 |
dev->dev.data_buf[0] = config_status->configuration;
|
1441 |
p->actual_length = 1;
|
1442 |
} |
1443 |
usbredir_handle_status(dev, p, config_status->status); |
1444 |
usb_generic_async_ctrl_complete(&dev->dev, p); |
1445 |
} |
1446 |
} |
1447 |
|
1448 |
static void usbredir_alt_setting_status(void *priv, uint64_t id, |
1449 |
struct usb_redir_alt_setting_status_header *alt_setting_status)
|
1450 |
{ |
1451 |
USBRedirDevice *dev = priv; |
1452 |
USBPacket *p; |
1453 |
|
1454 |
DPRINTF("alt status %d intf %d alt %d id: %"PRIu64"\n", |
1455 |
alt_setting_status->status, alt_setting_status->interface, |
1456 |
alt_setting_status->alt, id); |
1457 |
|
1458 |
p = usbredir_find_packet_by_id(dev, 0, id);
|
1459 |
if (p) {
|
1460 |
if (dev->dev.setup_buf[0] & USB_DIR_IN) { |
1461 |
dev->dev.data_buf[0] = alt_setting_status->alt;
|
1462 |
p->actual_length = 1;
|
1463 |
} |
1464 |
usbredir_handle_status(dev, p, alt_setting_status->status); |
1465 |
usb_generic_async_ctrl_complete(&dev->dev, p); |
1466 |
} |
1467 |
} |
1468 |
|
1469 |
static void usbredir_iso_stream_status(void *priv, uint64_t id, |
1470 |
struct usb_redir_iso_stream_status_header *iso_stream_status)
|
1471 |
{ |
1472 |
USBRedirDevice *dev = priv; |
1473 |
uint8_t ep = iso_stream_status->endpoint; |
1474 |
|
1475 |
DPRINTF("iso status %d ep %02X id %"PRIu64"\n", iso_stream_status->status, |
1476 |
ep, id); |
1477 |
|
1478 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) {
|
1479 |
return;
|
1480 |
} |
1481 |
|
1482 |
dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
1483 |
if (iso_stream_status->status == usb_redir_stall) {
|
1484 |
DPRINTF("iso stream stopped by peer ep %02X\n", ep);
|
1485 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
1486 |
} |
1487 |
} |
1488 |
|
1489 |
static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, |
1490 |
struct usb_redir_interrupt_receiving_status_header
|
1491 |
*interrupt_receiving_status) |
1492 |
{ |
1493 |
USBRedirDevice *dev = priv; |
1494 |
uint8_t ep = interrupt_receiving_status->endpoint; |
1495 |
|
1496 |
DPRINTF("interrupt recv status %d ep %02X id %"PRIu64"\n", |
1497 |
interrupt_receiving_status->status, ep, id); |
1498 |
|
1499 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) {
|
1500 |
return;
|
1501 |
} |
1502 |
|
1503 |
dev->endpoint[EP2I(ep)].interrupt_error = |
1504 |
interrupt_receiving_status->status; |
1505 |
if (interrupt_receiving_status->status == usb_redir_stall) {
|
1506 |
DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep);
|
1507 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
1508 |
} |
1509 |
} |
1510 |
|
1511 |
static void usbredir_bulk_streams_status(void *priv, uint64_t id, |
1512 |
struct usb_redir_bulk_streams_status_header *bulk_streams_status)
|
1513 |
{ |
1514 |
} |
1515 |
|
1516 |
static void usbredir_control_packet(void *priv, uint64_t id, |
1517 |
struct usb_redir_control_packet_header *control_packet,
|
1518 |
uint8_t *data, int data_len)
|
1519 |
{ |
1520 |
USBRedirDevice *dev = priv; |
1521 |
USBPacket *p; |
1522 |
int len = control_packet->length;
|
1523 |
|
1524 |
DPRINTF("ctrl-in status %d len %d id %"PRIu64"\n", control_packet->status, |
1525 |
len, id); |
1526 |
|
1527 |
/* Fix up USB-3 ep0 maxpacket size to allow superspeed connected devices
|
1528 |
* to work redirected to a not superspeed capable hcd */
|
1529 |
if (dev->dev.speed == USB_SPEED_SUPER &&
|
1530 |
!((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER)) && |
1531 |
control_packet->requesttype == 0x80 &&
|
1532 |
control_packet->request == 6 &&
|
1533 |
control_packet->value == 0x100 && control_packet->index == 0 && |
1534 |
data_len >= 18 && data[7] == 9) { |
1535 |
data[7] = 64; |
1536 |
} |
1537 |
|
1538 |
p = usbredir_find_packet_by_id(dev, 0, id);
|
1539 |
if (p) {
|
1540 |
usbredir_handle_status(dev, p, control_packet->status); |
1541 |
if (data_len > 0) { |
1542 |
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
1543 |
if (data_len > sizeof(dev->dev.data_buf)) { |
1544 |
ERROR("ctrl buffer too small (%d > %zu)\n",
|
1545 |
data_len, sizeof(dev->dev.data_buf));
|
1546 |
p->status = USB_RET_STALL; |
1547 |
data_len = len = sizeof(dev->dev.data_buf);
|
1548 |
} |
1549 |
memcpy(dev->dev.data_buf, data, data_len); |
1550 |
} |
1551 |
p->actual_length = len; |
1552 |
usb_generic_async_ctrl_complete(&dev->dev, p); |
1553 |
} |
1554 |
free(data); |
1555 |
} |
1556 |
|
1557 |
static void usbredir_bulk_packet(void *priv, uint64_t id, |
1558 |
struct usb_redir_bulk_packet_header *bulk_packet,
|
1559 |
uint8_t *data, int data_len)
|
1560 |
{ |
1561 |
USBRedirDevice *dev = priv; |
1562 |
uint8_t ep = bulk_packet->endpoint; |
1563 |
int len = (bulk_packet->length_high << 16) | bulk_packet->length; |
1564 |
USBPacket *p; |
1565 |
|
1566 |
DPRINTF("bulk-in status %d ep %02X len %d id %"PRIu64"\n", |
1567 |
bulk_packet->status, ep, len, id); |
1568 |
|
1569 |
p = usbredir_find_packet_by_id(dev, ep, id); |
1570 |
if (p) {
|
1571 |
size_t size = (p->combined) ? p->combined->iov.size : p->iov.size; |
1572 |
usbredir_handle_status(dev, p, bulk_packet->status); |
1573 |
if (data_len > 0) { |
1574 |
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
1575 |
if (data_len > size) {
|
1576 |
ERROR("bulk got more data then requested (%d > %zd)\n",
|
1577 |
data_len, p->iov.size); |
1578 |
p->status = USB_RET_BABBLE; |
1579 |
data_len = len = size; |
1580 |
} |
1581 |
if (p->combined) {
|
1582 |
iov_from_buf(p->combined->iov.iov, p->combined->iov.niov, |
1583 |
0, data, data_len);
|
1584 |
} else {
|
1585 |
usb_packet_copy(p, data, data_len); |
1586 |
} |
1587 |
} |
1588 |
p->actual_length = len; |
1589 |
if (p->pid == USB_TOKEN_IN && p->ep->pipeline) {
|
1590 |
usb_combined_input_packet_complete(&dev->dev, p); |
1591 |
} else {
|
1592 |
usb_packet_complete(&dev->dev, p); |
1593 |
} |
1594 |
} |
1595 |
free(data); |
1596 |
} |
1597 |
|
1598 |
static void usbredir_iso_packet(void *priv, uint64_t id, |
1599 |
struct usb_redir_iso_packet_header *iso_packet,
|
1600 |
uint8_t *data, int data_len)
|
1601 |
{ |
1602 |
USBRedirDevice *dev = priv; |
1603 |
uint8_t ep = iso_packet->endpoint; |
1604 |
|
1605 |
DPRINTF2("iso-in status %d ep %02X len %d id %"PRIu64"\n", |
1606 |
iso_packet->status, ep, data_len, id); |
1607 |
|
1608 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) {
|
1609 |
ERROR("received iso packet for non iso endpoint %02X\n", ep);
|
1610 |
free(data); |
1611 |
return;
|
1612 |
} |
1613 |
|
1614 |
if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
1615 |
DPRINTF("received iso packet for non started stream ep %02X\n", ep);
|
1616 |
free(data); |
1617 |
return;
|
1618 |
} |
1619 |
|
1620 |
/* bufp_alloc also adds the packet to the ep queue */
|
1621 |
bufp_alloc(dev, data, data_len, iso_packet->status, ep); |
1622 |
} |
1623 |
|
1624 |
static void usbredir_interrupt_packet(void *priv, uint64_t id, |
1625 |
struct usb_redir_interrupt_packet_header *interrupt_packet,
|
1626 |
uint8_t *data, int data_len)
|
1627 |
{ |
1628 |
USBRedirDevice *dev = priv; |
1629 |
uint8_t ep = interrupt_packet->endpoint; |
1630 |
|
1631 |
DPRINTF("interrupt-in status %d ep %02X len %d id %"PRIu64"\n", |
1632 |
interrupt_packet->status, ep, data_len, id); |
1633 |
|
1634 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) {
|
1635 |
ERROR("received int packet for non interrupt endpoint %02X\n", ep);
|
1636 |
free(data); |
1637 |
return;
|
1638 |
} |
1639 |
|
1640 |
if (ep & USB_DIR_IN) {
|
1641 |
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
1642 |
DPRINTF("received int packet while not started ep %02X\n", ep);
|
1643 |
free(data); |
1644 |
return;
|
1645 |
} |
1646 |
|
1647 |
if (QTAILQ_EMPTY(&dev->endpoint[EP2I(ep)].bufpq)) {
|
1648 |
usb_wakeup(usb_ep_get(&dev->dev, USB_TOKEN_IN, ep & 0x0f));
|
1649 |
} |
1650 |
|
1651 |
/* bufp_alloc also adds the packet to the ep queue */
|
1652 |
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); |
1653 |
} else {
|
1654 |
/*
|
1655 |
* We report output interrupt packets as completed directly upon
|
1656 |
* submission, so all we can do here if one failed is warn.
|
1657 |
*/
|
1658 |
if (interrupt_packet->status) {
|
1659 |
WARNING("interrupt output failed status %d ep %02X id %"PRIu64"\n", |
1660 |
interrupt_packet->status, ep, id); |
1661 |
} |
1662 |
} |
1663 |
} |
1664 |
|
1665 |
/*
|
1666 |
* Migration code
|
1667 |
*/
|
1668 |
|
1669 |
static void usbredir_pre_save(void *priv) |
1670 |
{ |
1671 |
USBRedirDevice *dev = priv; |
1672 |
|
1673 |
usbredir_fill_already_in_flight(dev); |
1674 |
} |
1675 |
|
1676 |
static int usbredir_post_load(void *priv, int version_id) |
1677 |
{ |
1678 |
USBRedirDevice *dev = priv; |
1679 |
|
1680 |
switch (dev->device_info.speed) {
|
1681 |
case usb_redir_speed_low:
|
1682 |
dev->dev.speed = USB_SPEED_LOW; |
1683 |
break;
|
1684 |
case usb_redir_speed_full:
|
1685 |
dev->dev.speed = USB_SPEED_FULL; |
1686 |
break;
|
1687 |
case usb_redir_speed_high:
|
1688 |
dev->dev.speed = USB_SPEED_HIGH; |
1689 |
break;
|
1690 |
case usb_redir_speed_super:
|
1691 |
dev->dev.speed = USB_SPEED_SUPER; |
1692 |
break;
|
1693 |
default:
|
1694 |
dev->dev.speed = USB_SPEED_FULL; |
1695 |
} |
1696 |
dev->dev.speedmask = (1 << dev->dev.speed);
|
1697 |
|
1698 |
usbredir_setup_usb_eps(dev); |
1699 |
|
1700 |
return 0; |
1701 |
} |
1702 |
|
1703 |
/* For usbredirparser migration */
|
1704 |
static void usbredir_put_parser(QEMUFile *f, void *priv, size_t unused) |
1705 |
{ |
1706 |
USBRedirDevice *dev = priv; |
1707 |
uint8_t *data; |
1708 |
int len;
|
1709 |
|
1710 |
if (dev->parser == NULL) { |
1711 |
qemu_put_be32(f, 0);
|
1712 |
return;
|
1713 |
} |
1714 |
|
1715 |
usbredirparser_serialize(dev->parser, &data, &len); |
1716 |
qemu_oom_check(data); |
1717 |
|
1718 |
qemu_put_be32(f, len); |
1719 |
qemu_put_buffer(f, data, len); |
1720 |
|
1721 |
free(data); |
1722 |
} |
1723 |
|
1724 |
static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused) |
1725 |
{ |
1726 |
USBRedirDevice *dev = priv; |
1727 |
uint8_t *data; |
1728 |
int len, ret;
|
1729 |
|
1730 |
len = qemu_get_be32(f); |
1731 |
if (len == 0) { |
1732 |
return 0; |
1733 |
} |
1734 |
|
1735 |
/*
|
1736 |
* If our chardev is not open already at this point the usbredir connection
|
1737 |
* has been broken (non seamless migration, or restore from disk).
|
1738 |
*
|
1739 |
* In this case create a temporary parser to receive the migration data,
|
1740 |
* and schedule the close_bh to report the device as disconnected to the
|
1741 |
* guest and to destroy the parser again.
|
1742 |
*/
|
1743 |
if (dev->parser == NULL) { |
1744 |
WARNING("usb-redir connection broken during migration\n");
|
1745 |
usbredir_create_parser(dev); |
1746 |
qemu_bh_schedule(dev->chardev_close_bh); |
1747 |
} |
1748 |
|
1749 |
data = g_malloc(len); |
1750 |
qemu_get_buffer(f, data, len); |
1751 |
|
1752 |
ret = usbredirparser_unserialize(dev->parser, data, len); |
1753 |
|
1754 |
g_free(data); |
1755 |
|
1756 |
return ret;
|
1757 |
} |
1758 |
|
1759 |
static const VMStateInfo usbredir_parser_vmstate_info = { |
1760 |
.name = "usb-redir-parser",
|
1761 |
.put = usbredir_put_parser, |
1762 |
.get = usbredir_get_parser, |
1763 |
}; |
1764 |
|
1765 |
|
1766 |
/* For buffered packets (iso/irq) queue migration */
|
1767 |
static void usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused) |
1768 |
{ |
1769 |
struct endp_data *endp = priv;
|
1770 |
struct buf_packet *bufp;
|
1771 |
int remain = endp->bufpq_size;
|
1772 |
|
1773 |
qemu_put_be32(f, endp->bufpq_size); |
1774 |
QTAILQ_FOREACH(bufp, &endp->bufpq, next) { |
1775 |
qemu_put_be32(f, bufp->len); |
1776 |
qemu_put_be32(f, bufp->status); |
1777 |
qemu_put_buffer(f, bufp->data, bufp->len); |
1778 |
remain--; |
1779 |
} |
1780 |
assert(remain == 0);
|
1781 |
} |
1782 |
|
1783 |
static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused) |
1784 |
{ |
1785 |
struct endp_data *endp = priv;
|
1786 |
struct buf_packet *bufp;
|
1787 |
int i;
|
1788 |
|
1789 |
endp->bufpq_size = qemu_get_be32(f); |
1790 |
for (i = 0; i < endp->bufpq_size; i++) { |
1791 |
bufp = g_malloc(sizeof(struct buf_packet)); |
1792 |
bufp->len = qemu_get_be32(f); |
1793 |
bufp->status = qemu_get_be32(f); |
1794 |
bufp->data = qemu_oom_check(malloc(bufp->len)); /* regular malloc! */
|
1795 |
qemu_get_buffer(f, bufp->data, bufp->len); |
1796 |
QTAILQ_INSERT_TAIL(&endp->bufpq, bufp, next); |
1797 |
} |
1798 |
return 0; |
1799 |
} |
1800 |
|
1801 |
static const VMStateInfo usbredir_ep_bufpq_vmstate_info = { |
1802 |
.name = "usb-redir-bufpq",
|
1803 |
.put = usbredir_put_bufpq, |
1804 |
.get = usbredir_get_bufpq, |
1805 |
}; |
1806 |
|
1807 |
|
1808 |
/* For endp_data migration */
|
1809 |
static const VMStateDescription usbredir_ep_vmstate = { |
1810 |
.name = "usb-redir-ep",
|
1811 |
.version_id = 1,
|
1812 |
.minimum_version_id = 1,
|
1813 |
.fields = (VMStateField[]) { |
1814 |
VMSTATE_UINT8(type, struct endp_data),
|
1815 |
VMSTATE_UINT8(interval, struct endp_data),
|
1816 |
VMSTATE_UINT8(interface, struct endp_data),
|
1817 |
VMSTATE_UINT16(max_packet_size, struct endp_data),
|
1818 |
VMSTATE_UINT8(iso_started, struct endp_data),
|
1819 |
VMSTATE_UINT8(iso_error, struct endp_data),
|
1820 |
VMSTATE_UINT8(interrupt_started, struct endp_data),
|
1821 |
VMSTATE_UINT8(interrupt_error, struct endp_data),
|
1822 |
VMSTATE_UINT8(bufpq_prefilled, struct endp_data),
|
1823 |
VMSTATE_UINT8(bufpq_dropping_packets, struct endp_data),
|
1824 |
{ |
1825 |
.name = "bufpq",
|
1826 |
.version_id = 0,
|
1827 |
.field_exists = NULL,
|
1828 |
.size = 0,
|
1829 |
.info = &usbredir_ep_bufpq_vmstate_info, |
1830 |
.flags = VMS_SINGLE, |
1831 |
.offset = 0,
|
1832 |
}, |
1833 |
VMSTATE_INT32(bufpq_target_size, struct endp_data),
|
1834 |
VMSTATE_END_OF_LIST() |
1835 |
} |
1836 |
}; |
1837 |
|
1838 |
|
1839 |
/* For PacketIdQueue migration */
|
1840 |
static void usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused) |
1841 |
{ |
1842 |
struct PacketIdQueue *q = priv;
|
1843 |
USBRedirDevice *dev = q->dev; |
1844 |
struct PacketIdQueueEntry *e;
|
1845 |
int remain = q->size;
|
1846 |
|
1847 |
DPRINTF("put_packet_id_q %s size %d\n", q->name, q->size);
|
1848 |
qemu_put_be32(f, q->size); |
1849 |
QTAILQ_FOREACH(e, &q->head, next) { |
1850 |
qemu_put_be64(f, e->id); |
1851 |
remain--; |
1852 |
} |
1853 |
assert(remain == 0);
|
1854 |
} |
1855 |
|
1856 |
static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused) |
1857 |
{ |
1858 |
struct PacketIdQueue *q = priv;
|
1859 |
USBRedirDevice *dev = q->dev; |
1860 |
int i, size;
|
1861 |
uint64_t id; |
1862 |
|
1863 |
size = qemu_get_be32(f); |
1864 |
DPRINTF("get_packet_id_q %s size %d\n", q->name, size);
|
1865 |
for (i = 0; i < size; i++) { |
1866 |
id = qemu_get_be64(f); |
1867 |
packet_id_queue_add(q, id); |
1868 |
} |
1869 |
assert(q->size == size); |
1870 |
return 0; |
1871 |
} |
1872 |
|
1873 |
static const VMStateInfo usbredir_ep_packet_id_q_vmstate_info = { |
1874 |
.name = "usb-redir-packet-id-q",
|
1875 |
.put = usbredir_put_packet_id_q, |
1876 |
.get = usbredir_get_packet_id_q, |
1877 |
}; |
1878 |
|
1879 |
static const VMStateDescription usbredir_ep_packet_id_queue_vmstate = { |
1880 |
.name = "usb-redir-packet-id-queue",
|
1881 |
.version_id = 1,
|
1882 |
.minimum_version_id = 1,
|
1883 |
.fields = (VMStateField[]) { |
1884 |
{ |
1885 |
.name = "queue",
|
1886 |
.version_id = 0,
|
1887 |
.field_exists = NULL,
|
1888 |
.size = 0,
|
1889 |
.info = &usbredir_ep_packet_id_q_vmstate_info, |
1890 |
.flags = VMS_SINGLE, |
1891 |
.offset = 0,
|
1892 |
}, |
1893 |
VMSTATE_END_OF_LIST() |
1894 |
} |
1895 |
}; |
1896 |
|
1897 |
|
1898 |
/* For usb_redir_device_connect_header migration */
|
1899 |
static const VMStateDescription usbredir_device_info_vmstate = { |
1900 |
.name = "usb-redir-device-info",
|
1901 |
.version_id = 1,
|
1902 |
.minimum_version_id = 1,
|
1903 |
.fields = (VMStateField[]) { |
1904 |
VMSTATE_UINT8(speed, struct usb_redir_device_connect_header),
|
1905 |
VMSTATE_UINT8(device_class, struct usb_redir_device_connect_header),
|
1906 |
VMSTATE_UINT8(device_subclass, struct usb_redir_device_connect_header),
|
1907 |
VMSTATE_UINT8(device_protocol, struct usb_redir_device_connect_header),
|
1908 |
VMSTATE_UINT16(vendor_id, struct usb_redir_device_connect_header),
|
1909 |
VMSTATE_UINT16(product_id, struct usb_redir_device_connect_header),
|
1910 |
VMSTATE_UINT16(device_version_bcd, |
1911 |
struct usb_redir_device_connect_header),
|
1912 |
VMSTATE_END_OF_LIST() |
1913 |
} |
1914 |
}; |
1915 |
|
1916 |
|
1917 |
/* For usb_redir_interface_info_header migration */
|
1918 |
static const VMStateDescription usbredir_interface_info_vmstate = { |
1919 |
.name = "usb-redir-interface-info",
|
1920 |
.version_id = 1,
|
1921 |
.minimum_version_id = 1,
|
1922 |
.fields = (VMStateField[]) { |
1923 |
VMSTATE_UINT32(interface_count, |
1924 |
struct usb_redir_interface_info_header),
|
1925 |
VMSTATE_UINT8_ARRAY(interface, |
1926 |
struct usb_redir_interface_info_header, 32), |
1927 |
VMSTATE_UINT8_ARRAY(interface_class, |
1928 |
struct usb_redir_interface_info_header, 32), |
1929 |
VMSTATE_UINT8_ARRAY(interface_subclass, |
1930 |
struct usb_redir_interface_info_header, 32), |
1931 |
VMSTATE_UINT8_ARRAY(interface_protocol, |
1932 |
struct usb_redir_interface_info_header, 32), |
1933 |
VMSTATE_END_OF_LIST() |
1934 |
} |
1935 |
}; |
1936 |
|
1937 |
|
1938 |
/* And finally the USBRedirDevice vmstate itself */
|
1939 |
static const VMStateDescription usbredir_vmstate = { |
1940 |
.name = "usb-redir",
|
1941 |
.version_id = 1,
|
1942 |
.minimum_version_id = 1,
|
1943 |
.pre_save = usbredir_pre_save, |
1944 |
.post_load = usbredir_post_load, |
1945 |
.fields = (VMStateField[]) { |
1946 |
VMSTATE_USB_DEVICE(dev, USBRedirDevice), |
1947 |
VMSTATE_TIMER(attach_timer, USBRedirDevice), |
1948 |
{ |
1949 |
.name = "parser",
|
1950 |
.version_id = 0,
|
1951 |
.field_exists = NULL,
|
1952 |
.size = 0,
|
1953 |
.info = &usbredir_parser_vmstate_info, |
1954 |
.flags = VMS_SINGLE, |
1955 |
.offset = 0,
|
1956 |
}, |
1957 |
VMSTATE_STRUCT_ARRAY(endpoint, USBRedirDevice, MAX_ENDPOINTS, 1,
|
1958 |
usbredir_ep_vmstate, struct endp_data),
|
1959 |
VMSTATE_STRUCT(cancelled, USBRedirDevice, 1,
|
1960 |
usbredir_ep_packet_id_queue_vmstate, |
1961 |
struct PacketIdQueue),
|
1962 |
VMSTATE_STRUCT(already_in_flight, USBRedirDevice, 1,
|
1963 |
usbredir_ep_packet_id_queue_vmstate, |
1964 |
struct PacketIdQueue),
|
1965 |
VMSTATE_STRUCT(device_info, USBRedirDevice, 1,
|
1966 |
usbredir_device_info_vmstate, |
1967 |
struct usb_redir_device_connect_header),
|
1968 |
VMSTATE_STRUCT(interface_info, USBRedirDevice, 1,
|
1969 |
usbredir_interface_info_vmstate, |
1970 |
struct usb_redir_interface_info_header),
|
1971 |
VMSTATE_END_OF_LIST() |
1972 |
} |
1973 |
}; |
1974 |
|
1975 |
static Property usbredir_properties[] = {
|
1976 |
DEFINE_PROP_CHR("chardev", USBRedirDevice, cs),
|
1977 |
DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, usbredirparser_warning),
|
1978 |
DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str),
|
1979 |
DEFINE_PROP_INT32("bootindex", USBRedirDevice, bootindex, -1), |
1980 |
DEFINE_PROP_END_OF_LIST(), |
1981 |
}; |
1982 |
|
1983 |
static void usbredir_class_initfn(ObjectClass *klass, void *data) |
1984 |
{ |
1985 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
1986 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1987 |
|
1988 |
uc->init = usbredir_initfn; |
1989 |
uc->product_desc = "USB Redirection Device";
|
1990 |
uc->handle_destroy = usbredir_handle_destroy; |
1991 |
uc->cancel_packet = usbredir_cancel_packet; |
1992 |
uc->handle_reset = usbredir_handle_reset; |
1993 |
uc->handle_data = usbredir_handle_data; |
1994 |
uc->handle_control = usbredir_handle_control; |
1995 |
uc->flush_ep_queue = usbredir_flush_ep_queue; |
1996 |
dc->vmsd = &usbredir_vmstate; |
1997 |
dc->props = usbredir_properties; |
1998 |
} |
1999 |
|
2000 |
static TypeInfo usbredir_dev_info = {
|
2001 |
.name = "usb-redir",
|
2002 |
.parent = TYPE_USB_DEVICE, |
2003 |
.instance_size = sizeof(USBRedirDevice),
|
2004 |
.class_init = usbredir_class_initfn, |
2005 |
}; |
2006 |
|
2007 |
static void usbredir_register_types(void) |
2008 |
{ |
2009 |
type_register_static(&usbredir_dev_info); |
2010 |
} |
2011 |
|
2012 |
type_init(usbredir_register_types) |