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/*
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* USB redirector usb-guest
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*
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* Copyright (c) 2011 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.h" |
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#include "sysemu.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 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 AsyncURB AsyncURB; |
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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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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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int bufpq_size;
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int bufpq_target_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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/* 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 open/close */
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QEMUBH *open_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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uint32_t packet_id; |
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QTAILQ_HEAD(, AsyncURB) asyncq; |
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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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}; |
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struct AsyncURB {
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USBRedirDevice *dev; |
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USBPacket *packet; |
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uint32_t packet_id; |
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int get;
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union {
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struct usb_redir_control_packet_header control_packet;
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struct usb_redir_bulk_packet_header bulk_packet;
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struct usb_redir_interrupt_packet_header interrupt_packet;
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}; |
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QTAILQ_ENTRY(AsyncURB)next; |
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}; |
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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, uint32_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, uint32_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, uint32_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, uint32_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, uint32_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, uint32_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, uint32_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, uint32_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, uint32_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 int usbredir_handle_status(USBRedirDevice *dev, |
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int status, int actual_len); |
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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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return qemu_chr_fe_write(dev->cs, data, count);
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} |
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/*
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* Async and buffered packets helpers
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*/
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static AsyncURB *async_alloc(USBRedirDevice *dev, USBPacket *p)
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{ |
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AsyncURB *aurb = (AsyncURB *) g_malloc0(sizeof(AsyncURB));
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aurb->dev = dev; |
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aurb->packet = p; |
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aurb->packet_id = dev->packet_id; |
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QTAILQ_INSERT_TAIL(&dev->asyncq, aurb, next); |
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dev->packet_id++; |
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return aurb;
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} |
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static void async_free(USBRedirDevice *dev, AsyncURB *aurb) |
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{ |
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QTAILQ_REMOVE(&dev->asyncq, aurb, next); |
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g_free(aurb); |
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} |
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static AsyncURB *async_find(USBRedirDevice *dev, uint32_t packet_id)
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{ |
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AsyncURB *aurb; |
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QTAILQ_FOREACH(aurb, &dev->asyncq, next) { |
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if (aurb->packet_id == packet_id) {
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return aurb;
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} |
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} |
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ERROR("could not find async urb for packet_id %u\n", packet_id);
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return NULL; |
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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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AsyncURB *aurb; |
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QTAILQ_FOREACH(aurb, &dev->asyncq, next) { |
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if (p != aurb->packet) {
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continue;
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} |
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DPRINTF("async cancel id %u\n", aurb->packet_id);
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usbredirparser_send_cancel_data_packet(dev->parser, aurb->packet_id); |
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usbredirparser_do_write(dev->parser); |
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/* Mark it as dead */
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aurb->packet = NULL;
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break;
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} |
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} |
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static void bufp_alloc(USBRedirDevice *dev, |
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uint8_t *data, int len, int status, uint8_t ep) |
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{ |
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struct buf_packet *bufp;
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if (!dev->endpoint[EP2I(ep)].bufpq_dropping_packets &&
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dev->endpoint[EP2I(ep)].bufpq_size > |
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2 * dev->endpoint[EP2I(ep)].bufpq_target_size) {
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DPRINTF("bufpq overflow, dropping packets ep %02X\n", ep);
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dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 1;
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} |
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/* Since we're interupting the stream anyways, drop enough packets to get
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back to our target buffer size */
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if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) {
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if (dev->endpoint[EP2I(ep)].bufpq_size >
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dev->endpoint[EP2I(ep)].bufpq_target_size) { |
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free(data); |
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return;
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} |
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dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
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} |
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bufp = g_malloc(sizeof(struct buf_packet)); |
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bufp->data = data; |
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bufp->len = len; |
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bufp->status = status; |
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QTAILQ_INSERT_TAIL(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
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dev->endpoint[EP2I(ep)].bufpq_size++; |
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} |
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static void bufp_free(USBRedirDevice *dev, struct buf_packet *bufp, |
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uint8_t ep) |
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{ |
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QTAILQ_REMOVE(&dev->endpoint[EP2I(ep)].bufpq, bufp, next); |
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dev->endpoint[EP2I(ep)].bufpq_size--; |
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free(bufp->data); |
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g_free(bufp); |
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} |
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static void usbredir_free_bufpq(USBRedirDevice *dev, uint8_t ep) |
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{ |
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struct buf_packet *buf, *buf_next;
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QTAILQ_FOREACH_SAFE(buf, &dev->endpoint[EP2I(ep)].bufpq, next, buf_next) { |
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bufp_free(dev, buf, ep); |
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} |
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} |
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/*
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* USBDevice callbacks
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*/
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static void usbredir_handle_reset(USBDevice *udev) |
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{ |
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USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
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DPRINTF("reset device\n");
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usbredirparser_send_reset(dev->parser); |
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usbredirparser_do_write(dev->parser); |
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} |
361 |
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static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, |
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uint8_t ep) |
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{ |
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int status, len;
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if (!dev->endpoint[EP2I(ep)].iso_started &&
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!dev->endpoint[EP2I(ep)].iso_error) { |
368 |
struct usb_redir_start_iso_stream_header start_iso = {
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.endpoint = ep, |
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}; |
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int pkts_per_sec;
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if (dev->dev.speed == USB_SPEED_HIGH) {
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pkts_per_sec = 8000 / dev->endpoint[EP2I(ep)].interval;
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} else {
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pkts_per_sec = 1000 / dev->endpoint[EP2I(ep)].interval;
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} |
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/* Testing has shown that we need circa 60 ms buffer */
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dev->endpoint[EP2I(ep)].bufpq_target_size = (pkts_per_sec * 60) / 1000; |
380 |
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/* Aim for approx 100 interrupts / second on the client to
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balance latency and interrupt load */
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start_iso.pkts_per_urb = pkts_per_sec / 100;
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if (start_iso.pkts_per_urb < 1) { |
385 |
start_iso.pkts_per_urb = 1;
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} else if (start_iso.pkts_per_urb > 32) { |
387 |
start_iso.pkts_per_urb = 32;
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} |
389 |
|
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start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + |
391 |
start_iso.pkts_per_urb - 1) /
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start_iso.pkts_per_urb; |
393 |
/* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
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as overflow buffer. Also see the usbredir protocol documentation */
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if (!(ep & USB_DIR_IN)) {
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396 |
start_iso.no_urbs *= 2;
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397 |
} |
398 |
if (start_iso.no_urbs > 16) { |
399 |
start_iso.no_urbs = 16;
|
400 |
} |
401 |
|
402 |
/* No id, we look at the ep when receiving a status back */
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usbredirparser_send_start_iso_stream(dev->parser, 0, &start_iso);
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usbredirparser_do_write(dev->parser); |
405 |
DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n",
|
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pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); |
407 |
dev->endpoint[EP2I(ep)].iso_started = 1;
|
408 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
409 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
410 |
} |
411 |
|
412 |
if (ep & USB_DIR_IN) {
|
413 |
struct buf_packet *isop;
|
414 |
|
415 |
if (dev->endpoint[EP2I(ep)].iso_started &&
|
416 |
!dev->endpoint[EP2I(ep)].bufpq_prefilled) { |
417 |
if (dev->endpoint[EP2I(ep)].bufpq_size <
|
418 |
dev->endpoint[EP2I(ep)].bufpq_target_size) { |
419 |
return usbredir_handle_status(dev, 0, 0); |
420 |
} |
421 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 1;
|
422 |
} |
423 |
|
424 |
isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
425 |
if (isop == NULL) { |
426 |
DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n",
|
427 |
ep, dev->endpoint[EP2I(ep)].iso_error); |
428 |
/* Re-fill the buffer */
|
429 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
430 |
/* Check iso_error for stream errors, otherwise its an underrun */
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431 |
status = dev->endpoint[EP2I(ep)].iso_error; |
432 |
dev->endpoint[EP2I(ep)].iso_error = 0;
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433 |
return usbredir_handle_status(dev, status, 0); |
434 |
} |
435 |
DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep,
|
436 |
isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); |
437 |
|
438 |
status = isop->status; |
439 |
if (status != usb_redir_success) {
|
440 |
bufp_free(dev, isop, ep); |
441 |
return usbredir_handle_status(dev, status, 0); |
442 |
} |
443 |
|
444 |
len = isop->len; |
445 |
if (len > p->iov.size) {
|
446 |
ERROR("received iso data is larger then packet ep %02X (%d > %d)\n",
|
447 |
ep, len, (int)p->iov.size);
|
448 |
bufp_free(dev, isop, ep); |
449 |
return USB_RET_NAK;
|
450 |
} |
451 |
usb_packet_copy(p, isop->data, len); |
452 |
bufp_free(dev, isop, ep); |
453 |
return len;
|
454 |
} else {
|
455 |
/* If the stream was not started because of a pending error don't
|
456 |
send the packet to the usb-host */
|
457 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
458 |
struct usb_redir_iso_packet_header iso_packet = {
|
459 |
.endpoint = ep, |
460 |
.length = p->iov.size |
461 |
}; |
462 |
uint8_t buf[p->iov.size]; |
463 |
/* No id, we look at the ep when receiving a status back */
|
464 |
usb_packet_copy(p, buf, p->iov.size); |
465 |
usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet,
|
466 |
buf, p->iov.size); |
467 |
usbredirparser_do_write(dev->parser); |
468 |
} |
469 |
status = dev->endpoint[EP2I(ep)].iso_error; |
470 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
471 |
DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status,
|
472 |
p->iov.size); |
473 |
return usbredir_handle_status(dev, status, p->iov.size);
|
474 |
} |
475 |
} |
476 |
|
477 |
static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
478 |
{ |
479 |
struct usb_redir_stop_iso_stream_header stop_iso_stream = {
|
480 |
.endpoint = ep |
481 |
}; |
482 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
483 |
usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream);
|
484 |
DPRINTF("iso stream stopped ep %02X\n", ep);
|
485 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
486 |
} |
487 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
488 |
usbredir_free_bufpq(dev, ep); |
489 |
} |
490 |
|
491 |
static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
492 |
uint8_t ep) |
493 |
{ |
494 |
AsyncURB *aurb = async_alloc(dev, p); |
495 |
struct usb_redir_bulk_packet_header bulk_packet;
|
496 |
|
497 |
DPRINTF("bulk-out ep %02X len %zd id %u\n", ep,
|
498 |
p->iov.size, aurb->packet_id); |
499 |
|
500 |
bulk_packet.endpoint = ep; |
501 |
bulk_packet.length = p->iov.size; |
502 |
bulk_packet.stream_id = 0;
|
503 |
aurb->bulk_packet = bulk_packet; |
504 |
|
505 |
if (ep & USB_DIR_IN) {
|
506 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
507 |
&bulk_packet, NULL, 0); |
508 |
} else {
|
509 |
uint8_t buf[p->iov.size]; |
510 |
usb_packet_copy(p, buf, p->iov.size); |
511 |
usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
|
512 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
513 |
&bulk_packet, buf, p->iov.size); |
514 |
} |
515 |
usbredirparser_do_write(dev->parser); |
516 |
return USB_RET_ASYNC;
|
517 |
} |
518 |
|
519 |
static int usbredir_handle_interrupt_data(USBRedirDevice *dev, |
520 |
USBPacket *p, uint8_t ep) |
521 |
{ |
522 |
if (ep & USB_DIR_IN) {
|
523 |
/* Input interrupt endpoint, buffered packet input */
|
524 |
struct buf_packet *intp;
|
525 |
int status, len;
|
526 |
|
527 |
if (!dev->endpoint[EP2I(ep)].interrupt_started &&
|
528 |
!dev->endpoint[EP2I(ep)].interrupt_error) { |
529 |
struct usb_redir_start_interrupt_receiving_header start_int = {
|
530 |
.endpoint = ep, |
531 |
}; |
532 |
/* No id, we look at the ep when receiving a status back */
|
533 |
usbredirparser_send_start_interrupt_receiving(dev->parser, 0,
|
534 |
&start_int); |
535 |
usbredirparser_do_write(dev->parser); |
536 |
DPRINTF("interrupt recv started ep %02X\n", ep);
|
537 |
dev->endpoint[EP2I(ep)].interrupt_started = 1;
|
538 |
/* We don't really want to drop interrupt packets ever, but
|
539 |
having some upper limit to how much we buffer is good. */
|
540 |
dev->endpoint[EP2I(ep)].bufpq_target_size = 1000;
|
541 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
542 |
} |
543 |
|
544 |
intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
545 |
if (intp == NULL) { |
546 |
DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep);
|
547 |
/* Check interrupt_error for stream errors */
|
548 |
status = dev->endpoint[EP2I(ep)].interrupt_error; |
549 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
550 |
return usbredir_handle_status(dev, status, 0); |
551 |
} |
552 |
DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,
|
553 |
intp->status, intp->len); |
554 |
|
555 |
status = intp->status; |
556 |
if (status != usb_redir_success) {
|
557 |
bufp_free(dev, intp, ep); |
558 |
return usbredir_handle_status(dev, status, 0); |
559 |
} |
560 |
|
561 |
len = intp->len; |
562 |
if (len > p->iov.size) {
|
563 |
ERROR("received int data is larger then packet ep %02X\n", ep);
|
564 |
bufp_free(dev, intp, ep); |
565 |
return USB_RET_NAK;
|
566 |
} |
567 |
usb_packet_copy(p, intp->data, len); |
568 |
bufp_free(dev, intp, ep); |
569 |
return len;
|
570 |
} else {
|
571 |
/* Output interrupt endpoint, normal async operation */
|
572 |
AsyncURB *aurb = async_alloc(dev, p); |
573 |
struct usb_redir_interrupt_packet_header interrupt_packet;
|
574 |
uint8_t buf[p->iov.size]; |
575 |
|
576 |
DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size,
|
577 |
aurb->packet_id); |
578 |
|
579 |
interrupt_packet.endpoint = ep; |
580 |
interrupt_packet.length = p->iov.size; |
581 |
aurb->interrupt_packet = interrupt_packet; |
582 |
|
583 |
usb_packet_copy(p, buf, p->iov.size); |
584 |
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
|
585 |
usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id, |
586 |
&interrupt_packet, buf, p->iov.size); |
587 |
usbredirparser_do_write(dev->parser); |
588 |
return USB_RET_ASYNC;
|
589 |
} |
590 |
} |
591 |
|
592 |
static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
593 |
uint8_t ep) |
594 |
{ |
595 |
struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = {
|
596 |
.endpoint = ep |
597 |
}; |
598 |
if (dev->endpoint[EP2I(ep)].interrupt_started) {
|
599 |
usbredirparser_send_stop_interrupt_receiving(dev->parser, 0,
|
600 |
&stop_interrupt_recv); |
601 |
DPRINTF("interrupt recv stopped ep %02X\n", ep);
|
602 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
603 |
} |
604 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
605 |
usbredir_free_bufpq(dev, ep); |
606 |
} |
607 |
|
608 |
static int usbredir_handle_data(USBDevice *udev, USBPacket *p) |
609 |
{ |
610 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
611 |
uint8_t ep; |
612 |
|
613 |
ep = p->ep->nr; |
614 |
if (p->pid == USB_TOKEN_IN) {
|
615 |
ep |= USB_DIR_IN; |
616 |
} |
617 |
|
618 |
switch (dev->endpoint[EP2I(ep)].type) {
|
619 |
case USB_ENDPOINT_XFER_CONTROL:
|
620 |
ERROR("handle_data called for control transfer on ep %02X\n", ep);
|
621 |
return USB_RET_NAK;
|
622 |
case USB_ENDPOINT_XFER_ISOC:
|
623 |
return usbredir_handle_iso_data(dev, p, ep);
|
624 |
case USB_ENDPOINT_XFER_BULK:
|
625 |
return usbredir_handle_bulk_data(dev, p, ep);
|
626 |
case USB_ENDPOINT_XFER_INT:
|
627 |
return usbredir_handle_interrupt_data(dev, p, ep);
|
628 |
default:
|
629 |
ERROR("handle_data ep %02X has unknown type %d\n", ep,
|
630 |
dev->endpoint[EP2I(ep)].type); |
631 |
return USB_RET_NAK;
|
632 |
} |
633 |
} |
634 |
|
635 |
static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
636 |
int config)
|
637 |
{ |
638 |
struct usb_redir_set_configuration_header set_config;
|
639 |
AsyncURB *aurb = async_alloc(dev, p); |
640 |
int i;
|
641 |
|
642 |
DPRINTF("set config %d id %u\n", config, aurb->packet_id);
|
643 |
|
644 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
645 |
switch (dev->endpoint[i].type) {
|
646 |
case USB_ENDPOINT_XFER_ISOC:
|
647 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
648 |
break;
|
649 |
case USB_ENDPOINT_XFER_INT:
|
650 |
if (i & 0x10) { |
651 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
652 |
} |
653 |
break;
|
654 |
} |
655 |
usbredir_free_bufpq(dev, I2EP(i)); |
656 |
} |
657 |
|
658 |
set_config.configuration = config; |
659 |
usbredirparser_send_set_configuration(dev->parser, aurb->packet_id, |
660 |
&set_config); |
661 |
usbredirparser_do_write(dev->parser); |
662 |
return USB_RET_ASYNC;
|
663 |
} |
664 |
|
665 |
static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
666 |
{ |
667 |
AsyncURB *aurb = async_alloc(dev, p); |
668 |
|
669 |
DPRINTF("get config id %u\n", aurb->packet_id);
|
670 |
|
671 |
aurb->get = 1;
|
672 |
usbredirparser_send_get_configuration(dev->parser, aurb->packet_id); |
673 |
usbredirparser_do_write(dev->parser); |
674 |
return USB_RET_ASYNC;
|
675 |
} |
676 |
|
677 |
static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
678 |
int interface, int alt) |
679 |
{ |
680 |
struct usb_redir_set_alt_setting_header set_alt;
|
681 |
AsyncURB *aurb = async_alloc(dev, p); |
682 |
int i;
|
683 |
|
684 |
DPRINTF("set interface %d alt %d id %u\n", interface, alt,
|
685 |
aurb->packet_id); |
686 |
|
687 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
688 |
if (dev->endpoint[i].interface == interface) {
|
689 |
switch (dev->endpoint[i].type) {
|
690 |
case USB_ENDPOINT_XFER_ISOC:
|
691 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
692 |
break;
|
693 |
case USB_ENDPOINT_XFER_INT:
|
694 |
if (i & 0x10) { |
695 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
696 |
} |
697 |
break;
|
698 |
} |
699 |
usbredir_free_bufpq(dev, I2EP(i)); |
700 |
} |
701 |
} |
702 |
|
703 |
set_alt.interface = interface; |
704 |
set_alt.alt = alt; |
705 |
usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id, |
706 |
&set_alt); |
707 |
usbredirparser_do_write(dev->parser); |
708 |
return USB_RET_ASYNC;
|
709 |
} |
710 |
|
711 |
static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
712 |
int interface)
|
713 |
{ |
714 |
struct usb_redir_get_alt_setting_header get_alt;
|
715 |
AsyncURB *aurb = async_alloc(dev, p); |
716 |
|
717 |
DPRINTF("get interface %d id %u\n", interface, aurb->packet_id);
|
718 |
|
719 |
get_alt.interface = interface; |
720 |
aurb->get = 1;
|
721 |
usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id, |
722 |
&get_alt); |
723 |
usbredirparser_do_write(dev->parser); |
724 |
return USB_RET_ASYNC;
|
725 |
} |
726 |
|
727 |
static int usbredir_handle_control(USBDevice *udev, USBPacket *p, |
728 |
int request, int value, int index, int length, uint8_t *data) |
729 |
{ |
730 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
731 |
struct usb_redir_control_packet_header control_packet;
|
732 |
AsyncURB *aurb; |
733 |
|
734 |
/* Special cases for certain standard device requests */
|
735 |
switch (request) {
|
736 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
737 |
DPRINTF("set address %d\n", value);
|
738 |
dev->dev.addr = value; |
739 |
return 0; |
740 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
741 |
return usbredir_set_config(dev, p, value & 0xff); |
742 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
743 |
return usbredir_get_config(dev, p);
|
744 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
745 |
return usbredir_set_interface(dev, p, index, value);
|
746 |
case InterfaceRequest | USB_REQ_GET_INTERFACE:
|
747 |
return usbredir_get_interface(dev, p, index);
|
748 |
} |
749 |
|
750 |
/* "Normal" ctrl requests */
|
751 |
aurb = async_alloc(dev, p); |
752 |
|
753 |
/* Note request is (bRequestType << 8) | bRequest */
|
754 |
DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n",
|
755 |
request >> 8, request & 0xff, value, index, length, |
756 |
aurb->packet_id); |
757 |
|
758 |
control_packet.request = request & 0xFF;
|
759 |
control_packet.requesttype = request >> 8;
|
760 |
control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
761 |
control_packet.value = value; |
762 |
control_packet.index = index; |
763 |
control_packet.length = length; |
764 |
aurb->control_packet = control_packet; |
765 |
|
766 |
if (control_packet.requesttype & USB_DIR_IN) {
|
767 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
768 |
&control_packet, NULL, 0); |
769 |
} else {
|
770 |
usbredir_log_data(dev, "ctrl data out:", data, length);
|
771 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
772 |
&control_packet, data, length); |
773 |
} |
774 |
usbredirparser_do_write(dev->parser); |
775 |
return USB_RET_ASYNC;
|
776 |
} |
777 |
|
778 |
/*
|
779 |
* Close events can be triggered by usbredirparser_do_write which gets called
|
780 |
* from within the USBDevice data / control packet callbacks and doing a
|
781 |
* usb_detach from within these callbacks is not a good idea.
|
782 |
*
|
783 |
* So we use a bh handler to take care of close events. We also handle
|
784 |
* open events from this callback to make sure that a close directly followed
|
785 |
* by an open gets handled in the right order.
|
786 |
*/
|
787 |
static void usbredir_open_close_bh(void *opaque) |
788 |
{ |
789 |
USBRedirDevice *dev = opaque; |
790 |
uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, };
|
791 |
|
792 |
usbredir_device_disconnect(dev); |
793 |
|
794 |
if (dev->parser) {
|
795 |
usbredirparser_destroy(dev->parser); |
796 |
dev->parser = NULL;
|
797 |
} |
798 |
|
799 |
if (dev->cs->opened) {
|
800 |
dev->parser = qemu_oom_check(usbredirparser_create()); |
801 |
dev->parser->priv = dev; |
802 |
dev->parser->log_func = usbredir_log; |
803 |
dev->parser->read_func = usbredir_read; |
804 |
dev->parser->write_func = usbredir_write; |
805 |
dev->parser->device_connect_func = usbredir_device_connect; |
806 |
dev->parser->device_disconnect_func = usbredir_device_disconnect; |
807 |
dev->parser->interface_info_func = usbredir_interface_info; |
808 |
dev->parser->ep_info_func = usbredir_ep_info; |
809 |
dev->parser->configuration_status_func = usbredir_configuration_status; |
810 |
dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
811 |
dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
812 |
dev->parser->interrupt_receiving_status_func = |
813 |
usbredir_interrupt_receiving_status; |
814 |
dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
815 |
dev->parser->control_packet_func = usbredir_control_packet; |
816 |
dev->parser->bulk_packet_func = usbredir_bulk_packet; |
817 |
dev->parser->iso_packet_func = usbredir_iso_packet; |
818 |
dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
819 |
dev->read_buf = NULL;
|
820 |
dev->read_buf_size = 0;
|
821 |
|
822 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); |
823 |
usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, 0);
|
824 |
usbredirparser_do_write(dev->parser); |
825 |
} |
826 |
} |
827 |
|
828 |
static void usbredir_do_attach(void *opaque) |
829 |
{ |
830 |
USBRedirDevice *dev = opaque; |
831 |
|
832 |
usb_device_attach(&dev->dev); |
833 |
} |
834 |
|
835 |
/*
|
836 |
* chardev callbacks
|
837 |
*/
|
838 |
|
839 |
static int usbredir_chardev_can_read(void *opaque) |
840 |
{ |
841 |
USBRedirDevice *dev = opaque; |
842 |
|
843 |
if (dev->parser) {
|
844 |
/* usbredir_parser_do_read will consume *all* data we give it */
|
845 |
return 1024 * 1024; |
846 |
} else {
|
847 |
/* usbredir_open_close_bh hasn't handled the open event yet */
|
848 |
return 0; |
849 |
} |
850 |
} |
851 |
|
852 |
static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
853 |
{ |
854 |
USBRedirDevice *dev = opaque; |
855 |
|
856 |
/* No recursion allowed! */
|
857 |
assert(dev->read_buf == NULL);
|
858 |
|
859 |
dev->read_buf = buf; |
860 |
dev->read_buf_size = size; |
861 |
|
862 |
usbredirparser_do_read(dev->parser); |
863 |
/* Send any acks, etc. which may be queued now */
|
864 |
usbredirparser_do_write(dev->parser); |
865 |
} |
866 |
|
867 |
static void usbredir_chardev_event(void *opaque, int event) |
868 |
{ |
869 |
USBRedirDevice *dev = opaque; |
870 |
|
871 |
switch (event) {
|
872 |
case CHR_EVENT_OPENED:
|
873 |
case CHR_EVENT_CLOSED:
|
874 |
qemu_bh_schedule(dev->open_close_bh); |
875 |
break;
|
876 |
} |
877 |
} |
878 |
|
879 |
/*
|
880 |
* init + destroy
|
881 |
*/
|
882 |
|
883 |
static int usbredir_initfn(USBDevice *udev) |
884 |
{ |
885 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
886 |
int i;
|
887 |
|
888 |
if (dev->cs == NULL) { |
889 |
qerror_report(QERR_MISSING_PARAMETER, "chardev");
|
890 |
return -1; |
891 |
} |
892 |
|
893 |
if (dev->filter_str) {
|
894 |
i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", |
895 |
&dev->filter_rules, |
896 |
&dev->filter_rules_count); |
897 |
if (i) {
|
898 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "filter",
|
899 |
"a usb device filter string");
|
900 |
return -1; |
901 |
} |
902 |
} |
903 |
|
904 |
dev->open_close_bh = qemu_bh_new(usbredir_open_close_bh, dev); |
905 |
dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); |
906 |
|
907 |
QTAILQ_INIT(&dev->asyncq); |
908 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
909 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
910 |
} |
911 |
|
912 |
/* We'll do the attach once we receive the speed from the usb-host */
|
913 |
udev->auto_attach = 0;
|
914 |
|
915 |
/* Let the backend know we are ready */
|
916 |
qemu_chr_fe_open(dev->cs); |
917 |
qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, |
918 |
usbredir_chardev_read, usbredir_chardev_event, dev); |
919 |
|
920 |
return 0; |
921 |
} |
922 |
|
923 |
static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
924 |
{ |
925 |
AsyncURB *aurb, *next_aurb; |
926 |
int i;
|
927 |
|
928 |
QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) { |
929 |
async_free(dev, aurb); |
930 |
} |
931 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
932 |
usbredir_free_bufpq(dev, I2EP(i)); |
933 |
} |
934 |
} |
935 |
|
936 |
static void usbredir_handle_destroy(USBDevice *udev) |
937 |
{ |
938 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
939 |
|
940 |
qemu_chr_fe_close(dev->cs); |
941 |
qemu_chr_delete(dev->cs); |
942 |
/* Note must be done after qemu_chr_close, as that causes a close event */
|
943 |
qemu_bh_delete(dev->open_close_bh); |
944 |
|
945 |
qemu_del_timer(dev->attach_timer); |
946 |
qemu_free_timer(dev->attach_timer); |
947 |
|
948 |
usbredir_cleanup_device_queues(dev); |
949 |
|
950 |
if (dev->parser) {
|
951 |
usbredirparser_destroy(dev->parser); |
952 |
} |
953 |
|
954 |
free(dev->filter_rules); |
955 |
} |
956 |
|
957 |
static int usbredir_check_filter(USBRedirDevice *dev) |
958 |
{ |
959 |
if (dev->interface_info.interface_count == 0) { |
960 |
ERROR("No interface info for device\n");
|
961 |
return -1; |
962 |
} |
963 |
|
964 |
if (dev->filter_rules) {
|
965 |
if (!usbredirparser_peer_has_cap(dev->parser,
|
966 |
usb_redir_cap_connect_device_version)) { |
967 |
ERROR("Device filter specified and peer does not have the "
|
968 |
"connect_device_version capability\n");
|
969 |
return -1; |
970 |
} |
971 |
|
972 |
if (usbredirfilter_check(
|
973 |
dev->filter_rules, |
974 |
dev->filter_rules_count, |
975 |
dev->device_info.device_class, |
976 |
dev->device_info.device_subclass, |
977 |
dev->device_info.device_protocol, |
978 |
dev->interface_info.interface_class, |
979 |
dev->interface_info.interface_subclass, |
980 |
dev->interface_info.interface_protocol, |
981 |
dev->interface_info.interface_count, |
982 |
dev->device_info.vendor_id, |
983 |
dev->device_info.product_id, |
984 |
dev->device_info.device_version_bcd, |
985 |
0) != 0) { |
986 |
return -1; |
987 |
} |
988 |
} |
989 |
|
990 |
return 0; |
991 |
} |
992 |
|
993 |
/*
|
994 |
* usbredirparser packet complete callbacks
|
995 |
*/
|
996 |
|
997 |
static int usbredir_handle_status(USBRedirDevice *dev, |
998 |
int status, int actual_len) |
999 |
{ |
1000 |
switch (status) {
|
1001 |
case usb_redir_success:
|
1002 |
return actual_len;
|
1003 |
case usb_redir_stall:
|
1004 |
return USB_RET_STALL;
|
1005 |
case usb_redir_cancelled:
|
1006 |
WARNING("returning cancelled packet to HC?\n");
|
1007 |
case usb_redir_inval:
|
1008 |
case usb_redir_ioerror:
|
1009 |
case usb_redir_timeout:
|
1010 |
default:
|
1011 |
return USB_RET_NAK;
|
1012 |
} |
1013 |
} |
1014 |
|
1015 |
static void usbredir_device_connect(void *priv, |
1016 |
struct usb_redir_device_connect_header *device_connect)
|
1017 |
{ |
1018 |
USBRedirDevice *dev = priv; |
1019 |
const char *speed; |
1020 |
|
1021 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1022 |
ERROR("Received device connect while already connected\n");
|
1023 |
return;
|
1024 |
} |
1025 |
|
1026 |
switch (device_connect->speed) {
|
1027 |
case usb_redir_speed_low:
|
1028 |
speed = "low speed";
|
1029 |
dev->dev.speed = USB_SPEED_LOW; |
1030 |
break;
|
1031 |
case usb_redir_speed_full:
|
1032 |
speed = "full speed";
|
1033 |
dev->dev.speed = USB_SPEED_FULL; |
1034 |
break;
|
1035 |
case usb_redir_speed_high:
|
1036 |
speed = "high speed";
|
1037 |
dev->dev.speed = USB_SPEED_HIGH; |
1038 |
break;
|
1039 |
case usb_redir_speed_super:
|
1040 |
speed = "super speed";
|
1041 |
dev->dev.speed = USB_SPEED_SUPER; |
1042 |
break;
|
1043 |
default:
|
1044 |
speed = "unknown speed";
|
1045 |
dev->dev.speed = USB_SPEED_FULL; |
1046 |
} |
1047 |
|
1048 |
if (usbredirparser_peer_has_cap(dev->parser,
|
1049 |
usb_redir_cap_connect_device_version)) { |
1050 |
INFO("attaching %s device %04x:%04x version %d.%d class %02x\n",
|
1051 |
speed, device_connect->vendor_id, device_connect->product_id, |
1052 |
device_connect->device_version_bcd >> 8,
|
1053 |
device_connect->device_version_bcd & 0xff,
|
1054 |
device_connect->device_class); |
1055 |
} else {
|
1056 |
INFO("attaching %s device %04x:%04x class %02x\n", speed,
|
1057 |
device_connect->vendor_id, device_connect->product_id, |
1058 |
device_connect->device_class); |
1059 |
} |
1060 |
|
1061 |
dev->dev.speedmask = (1 << dev->dev.speed);
|
1062 |
dev->device_info = *device_connect; |
1063 |
|
1064 |
if (usbredir_check_filter(dev)) {
|
1065 |
WARNING("Device %04x:%04x rejected by device filter, not attaching\n",
|
1066 |
device_connect->vendor_id, device_connect->product_id); |
1067 |
return;
|
1068 |
} |
1069 |
|
1070 |
qemu_mod_timer(dev->attach_timer, dev->next_attach_time); |
1071 |
} |
1072 |
|
1073 |
static void usbredir_device_disconnect(void *priv) |
1074 |
{ |
1075 |
USBRedirDevice *dev = priv; |
1076 |
int i;
|
1077 |
|
1078 |
/* Stop any pending attaches */
|
1079 |
qemu_del_timer(dev->attach_timer); |
1080 |
|
1081 |
if (dev->dev.attached) {
|
1082 |
usb_device_detach(&dev->dev); |
1083 |
/*
|
1084 |
* Delay next usb device attach to give the guest a chance to see
|
1085 |
* see the detach / attach in case of quick close / open succession
|
1086 |
*/
|
1087 |
dev->next_attach_time = qemu_get_clock_ms(vm_clock) + 200;
|
1088 |
} |
1089 |
|
1090 |
/* Reset state so that the next dev connected starts with a clean slate */
|
1091 |
usbredir_cleanup_device_queues(dev); |
1092 |
memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
1093 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1094 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
1095 |
} |
1096 |
dev->interface_info.interface_count = 0;
|
1097 |
} |
1098 |
|
1099 |
static void usbredir_interface_info(void *priv, |
1100 |
struct usb_redir_interface_info_header *interface_info)
|
1101 |
{ |
1102 |
USBRedirDevice *dev = priv; |
1103 |
|
1104 |
dev->interface_info = *interface_info; |
1105 |
|
1106 |
/*
|
1107 |
* If we receive interface info after the device has already been
|
1108 |
* connected (ie on a set_config), re-check the filter.
|
1109 |
*/
|
1110 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1111 |
if (usbredir_check_filter(dev)) {
|
1112 |
ERROR("Device no longer matches filter after interface info "
|
1113 |
"change, disconnecting!\n");
|
1114 |
usbredir_device_disconnect(dev); |
1115 |
} |
1116 |
} |
1117 |
} |
1118 |
|
1119 |
static void usbredir_ep_info(void *priv, |
1120 |
struct usb_redir_ep_info_header *ep_info)
|
1121 |
{ |
1122 |
USBRedirDevice *dev = priv; |
1123 |
int i;
|
1124 |
|
1125 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1126 |
dev->endpoint[i].type = ep_info->type[i]; |
1127 |
dev->endpoint[i].interval = ep_info->interval[i]; |
1128 |
dev->endpoint[i].interface = ep_info->interface[i]; |
1129 |
switch (dev->endpoint[i].type) {
|
1130 |
case usb_redir_type_invalid:
|
1131 |
break;
|
1132 |
case usb_redir_type_iso:
|
1133 |
case usb_redir_type_interrupt:
|
1134 |
if (dev->endpoint[i].interval == 0) { |
1135 |
ERROR("Received 0 interval for isoc or irq endpoint\n");
|
1136 |
usbredir_device_disconnect(dev); |
1137 |
} |
1138 |
/* Fall through */
|
1139 |
case usb_redir_type_control:
|
1140 |
case usb_redir_type_bulk:
|
1141 |
DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i),
|
1142 |
dev->endpoint[i].type, dev->endpoint[i].interface); |
1143 |
break;
|
1144 |
default:
|
1145 |
ERROR("Received invalid endpoint type\n");
|
1146 |
usbredir_device_disconnect(dev); |
1147 |
} |
1148 |
} |
1149 |
} |
1150 |
|
1151 |
static void usbredir_configuration_status(void *priv, uint32_t id, |
1152 |
struct usb_redir_configuration_status_header *config_status)
|
1153 |
{ |
1154 |
USBRedirDevice *dev = priv; |
1155 |
AsyncURB *aurb; |
1156 |
int len = 0; |
1157 |
|
1158 |
DPRINTF("set config status %d config %d id %u\n", config_status->status,
|
1159 |
config_status->configuration, id); |
1160 |
|
1161 |
aurb = async_find(dev, id); |
1162 |
if (!aurb) {
|
1163 |
return;
|
1164 |
} |
1165 |
if (aurb->packet) {
|
1166 |
if (aurb->get) {
|
1167 |
dev->dev.data_buf[0] = config_status->configuration;
|
1168 |
len = 1;
|
1169 |
} |
1170 |
aurb->packet->result = |
1171 |
usbredir_handle_status(dev, config_status->status, len); |
1172 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1173 |
} |
1174 |
async_free(dev, aurb); |
1175 |
} |
1176 |
|
1177 |
static void usbredir_alt_setting_status(void *priv, uint32_t id, |
1178 |
struct usb_redir_alt_setting_status_header *alt_setting_status)
|
1179 |
{ |
1180 |
USBRedirDevice *dev = priv; |
1181 |
AsyncURB *aurb; |
1182 |
int len = 0; |
1183 |
|
1184 |
DPRINTF("alt status %d intf %d alt %d id: %u\n",
|
1185 |
alt_setting_status->status, |
1186 |
alt_setting_status->interface, |
1187 |
alt_setting_status->alt, id); |
1188 |
|
1189 |
aurb = async_find(dev, id); |
1190 |
if (!aurb) {
|
1191 |
return;
|
1192 |
} |
1193 |
if (aurb->packet) {
|
1194 |
if (aurb->get) {
|
1195 |
dev->dev.data_buf[0] = alt_setting_status->alt;
|
1196 |
len = 1;
|
1197 |
} |
1198 |
aurb->packet->result = |
1199 |
usbredir_handle_status(dev, alt_setting_status->status, len); |
1200 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1201 |
} |
1202 |
async_free(dev, aurb); |
1203 |
} |
1204 |
|
1205 |
static void usbredir_iso_stream_status(void *priv, uint32_t id, |
1206 |
struct usb_redir_iso_stream_status_header *iso_stream_status)
|
1207 |
{ |
1208 |
USBRedirDevice *dev = priv; |
1209 |
uint8_t ep = iso_stream_status->endpoint; |
1210 |
|
1211 |
DPRINTF("iso status %d ep %02X id %u\n", iso_stream_status->status,
|
1212 |
ep, id); |
1213 |
|
1214 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) {
|
1215 |
return;
|
1216 |
} |
1217 |
|
1218 |
dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
1219 |
if (iso_stream_status->status == usb_redir_stall) {
|
1220 |
DPRINTF("iso stream stopped by peer ep %02X\n", ep);
|
1221 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
1222 |
} |
1223 |
} |
1224 |
|
1225 |
static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, |
1226 |
struct usb_redir_interrupt_receiving_status_header
|
1227 |
*interrupt_receiving_status) |
1228 |
{ |
1229 |
USBRedirDevice *dev = priv; |
1230 |
uint8_t ep = interrupt_receiving_status->endpoint; |
1231 |
|
1232 |
DPRINTF("interrupt recv status %d ep %02X id %u\n",
|
1233 |
interrupt_receiving_status->status, ep, id); |
1234 |
|
1235 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) {
|
1236 |
return;
|
1237 |
} |
1238 |
|
1239 |
dev->endpoint[EP2I(ep)].interrupt_error = |
1240 |
interrupt_receiving_status->status; |
1241 |
if (interrupt_receiving_status->status == usb_redir_stall) {
|
1242 |
DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep);
|
1243 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
1244 |
} |
1245 |
} |
1246 |
|
1247 |
static void usbredir_bulk_streams_status(void *priv, uint32_t id, |
1248 |
struct usb_redir_bulk_streams_status_header *bulk_streams_status)
|
1249 |
{ |
1250 |
} |
1251 |
|
1252 |
static void usbredir_control_packet(void *priv, uint32_t id, |
1253 |
struct usb_redir_control_packet_header *control_packet,
|
1254 |
uint8_t *data, int data_len)
|
1255 |
{ |
1256 |
USBRedirDevice *dev = priv; |
1257 |
int len = control_packet->length;
|
1258 |
AsyncURB *aurb; |
1259 |
|
1260 |
DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status,
|
1261 |
len, id); |
1262 |
|
1263 |
aurb = async_find(dev, id); |
1264 |
if (!aurb) {
|
1265 |
free(data); |
1266 |
return;
|
1267 |
} |
1268 |
|
1269 |
aurb->control_packet.status = control_packet->status; |
1270 |
aurb->control_packet.length = control_packet->length; |
1271 |
if (memcmp(&aurb->control_packet, control_packet,
|
1272 |
sizeof(*control_packet))) {
|
1273 |
ERROR("return control packet mismatch, please report this!\n");
|
1274 |
len = USB_RET_NAK; |
1275 |
} |
1276 |
|
1277 |
if (aurb->packet) {
|
1278 |
len = usbredir_handle_status(dev, control_packet->status, len); |
1279 |
if (len > 0) { |
1280 |
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
1281 |
if (data_len <= sizeof(dev->dev.data_buf)) { |
1282 |
memcpy(dev->dev.data_buf, data, data_len); |
1283 |
} else {
|
1284 |
ERROR("ctrl buffer too small (%d > %zu)\n",
|
1285 |
data_len, sizeof(dev->dev.data_buf));
|
1286 |
len = USB_RET_STALL; |
1287 |
} |
1288 |
} |
1289 |
aurb->packet->result = len; |
1290 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1291 |
} |
1292 |
async_free(dev, aurb); |
1293 |
free(data); |
1294 |
} |
1295 |
|
1296 |
static void usbredir_bulk_packet(void *priv, uint32_t id, |
1297 |
struct usb_redir_bulk_packet_header *bulk_packet,
|
1298 |
uint8_t *data, int data_len)
|
1299 |
{ |
1300 |
USBRedirDevice *dev = priv; |
1301 |
uint8_t ep = bulk_packet->endpoint; |
1302 |
int len = bulk_packet->length;
|
1303 |
AsyncURB *aurb; |
1304 |
|
1305 |
DPRINTF("bulk-in status %d ep %02X len %d id %u\n", bulk_packet->status,
|
1306 |
ep, len, id); |
1307 |
|
1308 |
aurb = async_find(dev, id); |
1309 |
if (!aurb) {
|
1310 |
free(data); |
1311 |
return;
|
1312 |
} |
1313 |
|
1314 |
if (aurb->bulk_packet.endpoint != bulk_packet->endpoint ||
|
1315 |
aurb->bulk_packet.stream_id != bulk_packet->stream_id) { |
1316 |
ERROR("return bulk packet mismatch, please report this!\n");
|
1317 |
len = USB_RET_NAK; |
1318 |
} |
1319 |
|
1320 |
if (aurb->packet) {
|
1321 |
len = usbredir_handle_status(dev, bulk_packet->status, len); |
1322 |
if (len > 0) { |
1323 |
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
1324 |
if (data_len <= aurb->packet->iov.size) {
|
1325 |
usb_packet_copy(aurb->packet, data, data_len); |
1326 |
} else {
|
1327 |
ERROR("bulk buffer too small (%d > %zd)\n", data_len,
|
1328 |
aurb->packet->iov.size); |
1329 |
len = USB_RET_STALL; |
1330 |
} |
1331 |
} |
1332 |
aurb->packet->result = len; |
1333 |
usb_packet_complete(&dev->dev, aurb->packet); |
1334 |
} |
1335 |
async_free(dev, aurb); |
1336 |
free(data); |
1337 |
} |
1338 |
|
1339 |
static void usbredir_iso_packet(void *priv, uint32_t id, |
1340 |
struct usb_redir_iso_packet_header *iso_packet,
|
1341 |
uint8_t *data, int data_len)
|
1342 |
{ |
1343 |
USBRedirDevice *dev = priv; |
1344 |
uint8_t ep = iso_packet->endpoint; |
1345 |
|
1346 |
DPRINTF2("iso-in status %d ep %02X len %d id %u\n", iso_packet->status, ep,
|
1347 |
data_len, id); |
1348 |
|
1349 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) {
|
1350 |
ERROR("received iso packet for non iso endpoint %02X\n", ep);
|
1351 |
free(data); |
1352 |
return;
|
1353 |
} |
1354 |
|
1355 |
if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
1356 |
DPRINTF("received iso packet for non started stream ep %02X\n", ep);
|
1357 |
free(data); |
1358 |
return;
|
1359 |
} |
1360 |
|
1361 |
/* bufp_alloc also adds the packet to the ep queue */
|
1362 |
bufp_alloc(dev, data, data_len, iso_packet->status, ep); |
1363 |
} |
1364 |
|
1365 |
static void usbredir_interrupt_packet(void *priv, uint32_t id, |
1366 |
struct usb_redir_interrupt_packet_header *interrupt_packet,
|
1367 |
uint8_t *data, int data_len)
|
1368 |
{ |
1369 |
USBRedirDevice *dev = priv; |
1370 |
uint8_t ep = interrupt_packet->endpoint; |
1371 |
|
1372 |
DPRINTF("interrupt-in status %d ep %02X len %d id %u\n",
|
1373 |
interrupt_packet->status, ep, data_len, id); |
1374 |
|
1375 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) {
|
1376 |
ERROR("received int packet for non interrupt endpoint %02X\n", ep);
|
1377 |
free(data); |
1378 |
return;
|
1379 |
} |
1380 |
|
1381 |
if (ep & USB_DIR_IN) {
|
1382 |
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
1383 |
DPRINTF("received int packet while not started ep %02X\n", ep);
|
1384 |
free(data); |
1385 |
return;
|
1386 |
} |
1387 |
|
1388 |
/* bufp_alloc also adds the packet to the ep queue */
|
1389 |
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); |
1390 |
} else {
|
1391 |
int len = interrupt_packet->length;
|
1392 |
|
1393 |
AsyncURB *aurb = async_find(dev, id); |
1394 |
if (!aurb) {
|
1395 |
return;
|
1396 |
} |
1397 |
|
1398 |
if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) {
|
1399 |
ERROR("return int packet mismatch, please report this!\n");
|
1400 |
len = USB_RET_NAK; |
1401 |
} |
1402 |
|
1403 |
if (aurb->packet) {
|
1404 |
aurb->packet->result = usbredir_handle_status(dev, |
1405 |
interrupt_packet->status, len); |
1406 |
usb_packet_complete(&dev->dev, aurb->packet); |
1407 |
} |
1408 |
async_free(dev, aurb); |
1409 |
} |
1410 |
} |
1411 |
|
1412 |
static Property usbredir_properties[] = {
|
1413 |
DEFINE_PROP_CHR("chardev", USBRedirDevice, cs),
|
1414 |
DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, 0), |
1415 |
DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str),
|
1416 |
DEFINE_PROP_END_OF_LIST(), |
1417 |
}; |
1418 |
|
1419 |
static void usbredir_class_initfn(ObjectClass *klass, void *data) |
1420 |
{ |
1421 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
1422 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1423 |
|
1424 |
uc->init = usbredir_initfn; |
1425 |
uc->product_desc = "USB Redirection Device";
|
1426 |
uc->handle_destroy = usbredir_handle_destroy; |
1427 |
uc->cancel_packet = usbredir_cancel_packet; |
1428 |
uc->handle_reset = usbredir_handle_reset; |
1429 |
uc->handle_data = usbredir_handle_data; |
1430 |
uc->handle_control = usbredir_handle_control; |
1431 |
dc->props = usbredir_properties; |
1432 |
} |
1433 |
|
1434 |
static TypeInfo usbredir_dev_info = {
|
1435 |
.name = "usb-redir",
|
1436 |
.parent = TYPE_USB_DEVICE, |
1437 |
.instance_size = sizeof(USBRedirDevice),
|
1438 |
.class_init = usbredir_class_initfn, |
1439 |
}; |
1440 |
|
1441 |
static void usbredir_register_types(void) |
1442 |
{ |
1443 |
type_register_static(&usbredir_dev_info); |
1444 |
} |
1445 |
|
1446 |
type_init(usbredir_register_types) |