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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_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, 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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} |
349 |
|
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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); |
357 |
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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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} |
362 |
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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) { |
369 |
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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} |
379 |
/* 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; |
381 |
|
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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) { |
386 |
start_iso.pkts_per_urb = 1;
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} else if (start_iso.pkts_per_urb > 32) { |
388 |
start_iso.pkts_per_urb = 32;
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} |
390 |
|
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start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + |
392 |
start_iso.pkts_per_urb - 1) /
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start_iso.pkts_per_urb; |
394 |
/* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
|
395 |
as overflow buffer. Also see the usbredir protocol documentation */
|
396 |
if (!(ep & USB_DIR_IN)) {
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start_iso.no_urbs *= 2;
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398 |
} |
399 |
if (start_iso.no_urbs > 16) { |
400 |
start_iso.no_urbs = 16;
|
401 |
} |
402 |
|
403 |
/* 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); |
406 |
DPRINTF("iso stream started pkts/sec %d pkts/urb %d urbs %d ep %02X\n",
|
407 |
pkts_per_sec, start_iso.pkts_per_urb, start_iso.no_urbs, ep); |
408 |
dev->endpoint[EP2I(ep)].iso_started = 1;
|
409 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
410 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
411 |
} |
412 |
|
413 |
if (ep & USB_DIR_IN) {
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414 |
struct buf_packet *isop;
|
415 |
|
416 |
if (dev->endpoint[EP2I(ep)].iso_started &&
|
417 |
!dev->endpoint[EP2I(ep)].bufpq_prefilled) { |
418 |
if (dev->endpoint[EP2I(ep)].bufpq_size <
|
419 |
dev->endpoint[EP2I(ep)].bufpq_target_size) { |
420 |
return usbredir_handle_status(dev, 0, 0); |
421 |
} |
422 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 1;
|
423 |
} |
424 |
|
425 |
isop = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
426 |
if (isop == NULL) { |
427 |
DPRINTF("iso-token-in ep %02X, no isop, iso_error: %d\n",
|
428 |
ep, dev->endpoint[EP2I(ep)].iso_error); |
429 |
/* Re-fill the buffer */
|
430 |
dev->endpoint[EP2I(ep)].bufpq_prefilled = 0;
|
431 |
/* Check iso_error for stream errors, otherwise its an underrun */
|
432 |
status = dev->endpoint[EP2I(ep)].iso_error; |
433 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
434 |
return status ? USB_RET_NAK : 0; |
435 |
} |
436 |
DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep,
|
437 |
isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); |
438 |
|
439 |
status = isop->status; |
440 |
if (status != usb_redir_success) {
|
441 |
bufp_free(dev, isop, ep); |
442 |
return USB_RET_NAK;
|
443 |
} |
444 |
|
445 |
len = isop->len; |
446 |
if (len > p->iov.size) {
|
447 |
ERROR("received iso data is larger then packet ep %02X (%d > %d)\n",
|
448 |
ep, len, (int)p->iov.size);
|
449 |
bufp_free(dev, isop, ep); |
450 |
return USB_RET_NAK;
|
451 |
} |
452 |
usb_packet_copy(p, isop->data, len); |
453 |
bufp_free(dev, isop, ep); |
454 |
return len;
|
455 |
} else {
|
456 |
/* If the stream was not started because of a pending error don't
|
457 |
send the packet to the usb-host */
|
458 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
459 |
struct usb_redir_iso_packet_header iso_packet = {
|
460 |
.endpoint = ep, |
461 |
.length = p->iov.size |
462 |
}; |
463 |
uint8_t buf[p->iov.size]; |
464 |
/* No id, we look at the ep when receiving a status back */
|
465 |
usb_packet_copy(p, buf, p->iov.size); |
466 |
usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet,
|
467 |
buf, p->iov.size); |
468 |
usbredirparser_do_write(dev->parser); |
469 |
} |
470 |
status = dev->endpoint[EP2I(ep)].iso_error; |
471 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
472 |
DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status,
|
473 |
p->iov.size); |
474 |
return usbredir_handle_status(dev, status, p->iov.size);
|
475 |
} |
476 |
} |
477 |
|
478 |
static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) |
479 |
{ |
480 |
struct usb_redir_stop_iso_stream_header stop_iso_stream = {
|
481 |
.endpoint = ep |
482 |
}; |
483 |
if (dev->endpoint[EP2I(ep)].iso_started) {
|
484 |
usbredirparser_send_stop_iso_stream(dev->parser, 0, &stop_iso_stream);
|
485 |
DPRINTF("iso stream stopped ep %02X\n", ep);
|
486 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
487 |
} |
488 |
dev->endpoint[EP2I(ep)].iso_error = 0;
|
489 |
usbredir_free_bufpq(dev, ep); |
490 |
} |
491 |
|
492 |
static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, |
493 |
uint8_t ep) |
494 |
{ |
495 |
AsyncURB *aurb = async_alloc(dev, p); |
496 |
struct usb_redir_bulk_packet_header bulk_packet;
|
497 |
|
498 |
DPRINTF("bulk-out ep %02X len %zd id %u\n", ep,
|
499 |
p->iov.size, aurb->packet_id); |
500 |
|
501 |
bulk_packet.endpoint = ep; |
502 |
bulk_packet.length = p->iov.size; |
503 |
bulk_packet.stream_id = 0;
|
504 |
aurb->bulk_packet = bulk_packet; |
505 |
|
506 |
if (ep & USB_DIR_IN) {
|
507 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
508 |
&bulk_packet, NULL, 0); |
509 |
} else {
|
510 |
uint8_t buf[p->iov.size]; |
511 |
usb_packet_copy(p, buf, p->iov.size); |
512 |
usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
|
513 |
usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, |
514 |
&bulk_packet, buf, p->iov.size); |
515 |
} |
516 |
usbredirparser_do_write(dev->parser); |
517 |
return USB_RET_ASYNC;
|
518 |
} |
519 |
|
520 |
static int usbredir_handle_interrupt_data(USBRedirDevice *dev, |
521 |
USBPacket *p, uint8_t ep) |
522 |
{ |
523 |
if (ep & USB_DIR_IN) {
|
524 |
/* Input interrupt endpoint, buffered packet input */
|
525 |
struct buf_packet *intp;
|
526 |
int status, len;
|
527 |
|
528 |
if (!dev->endpoint[EP2I(ep)].interrupt_started &&
|
529 |
!dev->endpoint[EP2I(ep)].interrupt_error) { |
530 |
struct usb_redir_start_interrupt_receiving_header start_int = {
|
531 |
.endpoint = ep, |
532 |
}; |
533 |
/* No id, we look at the ep when receiving a status back */
|
534 |
usbredirparser_send_start_interrupt_receiving(dev->parser, 0,
|
535 |
&start_int); |
536 |
usbredirparser_do_write(dev->parser); |
537 |
DPRINTF("interrupt recv started ep %02X\n", ep);
|
538 |
dev->endpoint[EP2I(ep)].interrupt_started = 1;
|
539 |
/* We don't really want to drop interrupt packets ever, but
|
540 |
having some upper limit to how much we buffer is good. */
|
541 |
dev->endpoint[EP2I(ep)].bufpq_target_size = 1000;
|
542 |
dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0;
|
543 |
} |
544 |
|
545 |
intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); |
546 |
if (intp == NULL) { |
547 |
DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep);
|
548 |
/* Check interrupt_error for stream errors */
|
549 |
status = dev->endpoint[EP2I(ep)].interrupt_error; |
550 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
551 |
if (status) {
|
552 |
return usbredir_handle_status(dev, status, 0); |
553 |
} |
554 |
return USB_RET_NAK;
|
555 |
} |
556 |
DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep,
|
557 |
intp->status, intp->len); |
558 |
|
559 |
status = intp->status; |
560 |
if (status != usb_redir_success) {
|
561 |
bufp_free(dev, intp, ep); |
562 |
return usbredir_handle_status(dev, status, 0); |
563 |
} |
564 |
|
565 |
len = intp->len; |
566 |
if (len > p->iov.size) {
|
567 |
ERROR("received int data is larger then packet ep %02X\n", ep);
|
568 |
bufp_free(dev, intp, ep); |
569 |
return USB_RET_NAK;
|
570 |
} |
571 |
usb_packet_copy(p, intp->data, len); |
572 |
bufp_free(dev, intp, ep); |
573 |
return len;
|
574 |
} else {
|
575 |
/* Output interrupt endpoint, normal async operation */
|
576 |
AsyncURB *aurb = async_alloc(dev, p); |
577 |
struct usb_redir_interrupt_packet_header interrupt_packet;
|
578 |
uint8_t buf[p->iov.size]; |
579 |
|
580 |
DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size,
|
581 |
aurb->packet_id); |
582 |
|
583 |
interrupt_packet.endpoint = ep; |
584 |
interrupt_packet.length = p->iov.size; |
585 |
aurb->interrupt_packet = interrupt_packet; |
586 |
|
587 |
usb_packet_copy(p, buf, p->iov.size); |
588 |
usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
|
589 |
usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id, |
590 |
&interrupt_packet, buf, p->iov.size); |
591 |
usbredirparser_do_write(dev->parser); |
592 |
return USB_RET_ASYNC;
|
593 |
} |
594 |
} |
595 |
|
596 |
static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, |
597 |
uint8_t ep) |
598 |
{ |
599 |
struct usb_redir_stop_interrupt_receiving_header stop_interrupt_recv = {
|
600 |
.endpoint = ep |
601 |
}; |
602 |
if (dev->endpoint[EP2I(ep)].interrupt_started) {
|
603 |
usbredirparser_send_stop_interrupt_receiving(dev->parser, 0,
|
604 |
&stop_interrupt_recv); |
605 |
DPRINTF("interrupt recv stopped ep %02X\n", ep);
|
606 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
607 |
} |
608 |
dev->endpoint[EP2I(ep)].interrupt_error = 0;
|
609 |
usbredir_free_bufpq(dev, ep); |
610 |
} |
611 |
|
612 |
static int usbredir_handle_data(USBDevice *udev, USBPacket *p) |
613 |
{ |
614 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
615 |
uint8_t ep; |
616 |
|
617 |
ep = p->ep->nr; |
618 |
if (p->pid == USB_TOKEN_IN) {
|
619 |
ep |= USB_DIR_IN; |
620 |
} |
621 |
|
622 |
switch (dev->endpoint[EP2I(ep)].type) {
|
623 |
case USB_ENDPOINT_XFER_CONTROL:
|
624 |
ERROR("handle_data called for control transfer on ep %02X\n", ep);
|
625 |
return USB_RET_NAK;
|
626 |
case USB_ENDPOINT_XFER_ISOC:
|
627 |
return usbredir_handle_iso_data(dev, p, ep);
|
628 |
case USB_ENDPOINT_XFER_BULK:
|
629 |
return usbredir_handle_bulk_data(dev, p, ep);
|
630 |
case USB_ENDPOINT_XFER_INT:
|
631 |
return usbredir_handle_interrupt_data(dev, p, ep);
|
632 |
default:
|
633 |
ERROR("handle_data ep %02X has unknown type %d\n", ep,
|
634 |
dev->endpoint[EP2I(ep)].type); |
635 |
return USB_RET_NAK;
|
636 |
} |
637 |
} |
638 |
|
639 |
static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, |
640 |
int config)
|
641 |
{ |
642 |
struct usb_redir_set_configuration_header set_config;
|
643 |
AsyncURB *aurb = async_alloc(dev, p); |
644 |
int i;
|
645 |
|
646 |
DPRINTF("set config %d id %u\n", config, aurb->packet_id);
|
647 |
|
648 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
649 |
switch (dev->endpoint[i].type) {
|
650 |
case USB_ENDPOINT_XFER_ISOC:
|
651 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
652 |
break;
|
653 |
case USB_ENDPOINT_XFER_INT:
|
654 |
if (i & 0x10) { |
655 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
656 |
} |
657 |
break;
|
658 |
} |
659 |
usbredir_free_bufpq(dev, I2EP(i)); |
660 |
} |
661 |
|
662 |
set_config.configuration = config; |
663 |
usbredirparser_send_set_configuration(dev->parser, aurb->packet_id, |
664 |
&set_config); |
665 |
usbredirparser_do_write(dev->parser); |
666 |
return USB_RET_ASYNC;
|
667 |
} |
668 |
|
669 |
static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p) |
670 |
{ |
671 |
AsyncURB *aurb = async_alloc(dev, p); |
672 |
|
673 |
DPRINTF("get config id %u\n", aurb->packet_id);
|
674 |
|
675 |
aurb->get = 1;
|
676 |
usbredirparser_send_get_configuration(dev->parser, aurb->packet_id); |
677 |
usbredirparser_do_write(dev->parser); |
678 |
return USB_RET_ASYNC;
|
679 |
} |
680 |
|
681 |
static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, |
682 |
int interface, int alt) |
683 |
{ |
684 |
struct usb_redir_set_alt_setting_header set_alt;
|
685 |
AsyncURB *aurb = async_alloc(dev, p); |
686 |
int i;
|
687 |
|
688 |
DPRINTF("set interface %d alt %d id %u\n", interface, alt,
|
689 |
aurb->packet_id); |
690 |
|
691 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
692 |
if (dev->endpoint[i].interface == interface) {
|
693 |
switch (dev->endpoint[i].type) {
|
694 |
case USB_ENDPOINT_XFER_ISOC:
|
695 |
usbredir_stop_iso_stream(dev, I2EP(i)); |
696 |
break;
|
697 |
case USB_ENDPOINT_XFER_INT:
|
698 |
if (i & 0x10) { |
699 |
usbredir_stop_interrupt_receiving(dev, I2EP(i)); |
700 |
} |
701 |
break;
|
702 |
} |
703 |
usbredir_free_bufpq(dev, I2EP(i)); |
704 |
} |
705 |
} |
706 |
|
707 |
set_alt.interface = interface; |
708 |
set_alt.alt = alt; |
709 |
usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id, |
710 |
&set_alt); |
711 |
usbredirparser_do_write(dev->parser); |
712 |
return USB_RET_ASYNC;
|
713 |
} |
714 |
|
715 |
static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, |
716 |
int interface)
|
717 |
{ |
718 |
struct usb_redir_get_alt_setting_header get_alt;
|
719 |
AsyncURB *aurb = async_alloc(dev, p); |
720 |
|
721 |
DPRINTF("get interface %d id %u\n", interface, aurb->packet_id);
|
722 |
|
723 |
get_alt.interface = interface; |
724 |
aurb->get = 1;
|
725 |
usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id, |
726 |
&get_alt); |
727 |
usbredirparser_do_write(dev->parser); |
728 |
return USB_RET_ASYNC;
|
729 |
} |
730 |
|
731 |
static int usbredir_handle_control(USBDevice *udev, USBPacket *p, |
732 |
int request, int value, int index, int length, uint8_t *data) |
733 |
{ |
734 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
735 |
struct usb_redir_control_packet_header control_packet;
|
736 |
AsyncURB *aurb; |
737 |
|
738 |
/* Special cases for certain standard device requests */
|
739 |
switch (request) {
|
740 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
741 |
DPRINTF("set address %d\n", value);
|
742 |
dev->dev.addr = value; |
743 |
return 0; |
744 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
745 |
return usbredir_set_config(dev, p, value & 0xff); |
746 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
747 |
return usbredir_get_config(dev, p);
|
748 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
749 |
return usbredir_set_interface(dev, p, index, value);
|
750 |
case InterfaceRequest | USB_REQ_GET_INTERFACE:
|
751 |
return usbredir_get_interface(dev, p, index);
|
752 |
} |
753 |
|
754 |
/* "Normal" ctrl requests */
|
755 |
aurb = async_alloc(dev, p); |
756 |
|
757 |
/* Note request is (bRequestType << 8) | bRequest */
|
758 |
DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n",
|
759 |
request >> 8, request & 0xff, value, index, length, |
760 |
aurb->packet_id); |
761 |
|
762 |
control_packet.request = request & 0xFF;
|
763 |
control_packet.requesttype = request >> 8;
|
764 |
control_packet.endpoint = control_packet.requesttype & USB_DIR_IN; |
765 |
control_packet.value = value; |
766 |
control_packet.index = index; |
767 |
control_packet.length = length; |
768 |
aurb->control_packet = control_packet; |
769 |
|
770 |
if (control_packet.requesttype & USB_DIR_IN) {
|
771 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
772 |
&control_packet, NULL, 0); |
773 |
} else {
|
774 |
usbredir_log_data(dev, "ctrl data out:", data, length);
|
775 |
usbredirparser_send_control_packet(dev->parser, aurb->packet_id, |
776 |
&control_packet, data, length); |
777 |
} |
778 |
usbredirparser_do_write(dev->parser); |
779 |
return USB_RET_ASYNC;
|
780 |
} |
781 |
|
782 |
/*
|
783 |
* Close events can be triggered by usbredirparser_do_write which gets called
|
784 |
* from within the USBDevice data / control packet callbacks and doing a
|
785 |
* usb_detach from within these callbacks is not a good idea.
|
786 |
*
|
787 |
* So we use a bh handler to take care of close events. We also handle
|
788 |
* open events from this callback to make sure that a close directly followed
|
789 |
* by an open gets handled in the right order.
|
790 |
*/
|
791 |
static void usbredir_open_close_bh(void *opaque) |
792 |
{ |
793 |
USBRedirDevice *dev = opaque; |
794 |
uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, };
|
795 |
|
796 |
usbredir_device_disconnect(dev); |
797 |
|
798 |
if (dev->parser) {
|
799 |
usbredirparser_destroy(dev->parser); |
800 |
dev->parser = NULL;
|
801 |
} |
802 |
|
803 |
if (dev->cs->opened) {
|
804 |
dev->parser = qemu_oom_check(usbredirparser_create()); |
805 |
dev->parser->priv = dev; |
806 |
dev->parser->log_func = usbredir_log; |
807 |
dev->parser->read_func = usbredir_read; |
808 |
dev->parser->write_func = usbredir_write; |
809 |
dev->parser->hello_func = usbredir_hello; |
810 |
dev->parser->device_connect_func = usbredir_device_connect; |
811 |
dev->parser->device_disconnect_func = usbredir_device_disconnect; |
812 |
dev->parser->interface_info_func = usbredir_interface_info; |
813 |
dev->parser->ep_info_func = usbredir_ep_info; |
814 |
dev->parser->configuration_status_func = usbredir_configuration_status; |
815 |
dev->parser->alt_setting_status_func = usbredir_alt_setting_status; |
816 |
dev->parser->iso_stream_status_func = usbredir_iso_stream_status; |
817 |
dev->parser->interrupt_receiving_status_func = |
818 |
usbredir_interrupt_receiving_status; |
819 |
dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; |
820 |
dev->parser->control_packet_func = usbredir_control_packet; |
821 |
dev->parser->bulk_packet_func = usbredir_bulk_packet; |
822 |
dev->parser->iso_packet_func = usbredir_iso_packet; |
823 |
dev->parser->interrupt_packet_func = usbredir_interrupt_packet; |
824 |
dev->read_buf = NULL;
|
825 |
dev->read_buf_size = 0;
|
826 |
|
827 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); |
828 |
usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); |
829 |
usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, 0);
|
830 |
usbredirparser_do_write(dev->parser); |
831 |
} |
832 |
} |
833 |
|
834 |
static void usbredir_do_attach(void *opaque) |
835 |
{ |
836 |
USBRedirDevice *dev = opaque; |
837 |
|
838 |
usb_device_attach(&dev->dev); |
839 |
} |
840 |
|
841 |
/*
|
842 |
* chardev callbacks
|
843 |
*/
|
844 |
|
845 |
static int usbredir_chardev_can_read(void *opaque) |
846 |
{ |
847 |
USBRedirDevice *dev = opaque; |
848 |
|
849 |
if (dev->parser) {
|
850 |
/* usbredir_parser_do_read will consume *all* data we give it */
|
851 |
return 1024 * 1024; |
852 |
} else {
|
853 |
/* usbredir_open_close_bh hasn't handled the open event yet */
|
854 |
return 0; |
855 |
} |
856 |
} |
857 |
|
858 |
static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) |
859 |
{ |
860 |
USBRedirDevice *dev = opaque; |
861 |
|
862 |
/* No recursion allowed! */
|
863 |
assert(dev->read_buf == NULL);
|
864 |
|
865 |
dev->read_buf = buf; |
866 |
dev->read_buf_size = size; |
867 |
|
868 |
usbredirparser_do_read(dev->parser); |
869 |
/* Send any acks, etc. which may be queued now */
|
870 |
usbredirparser_do_write(dev->parser); |
871 |
} |
872 |
|
873 |
static void usbredir_chardev_event(void *opaque, int event) |
874 |
{ |
875 |
USBRedirDevice *dev = opaque; |
876 |
|
877 |
switch (event) {
|
878 |
case CHR_EVENT_OPENED:
|
879 |
case CHR_EVENT_CLOSED:
|
880 |
qemu_bh_schedule(dev->open_close_bh); |
881 |
break;
|
882 |
} |
883 |
} |
884 |
|
885 |
/*
|
886 |
* init + destroy
|
887 |
*/
|
888 |
|
889 |
static int usbredir_initfn(USBDevice *udev) |
890 |
{ |
891 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
892 |
int i;
|
893 |
|
894 |
if (dev->cs == NULL) { |
895 |
qerror_report(QERR_MISSING_PARAMETER, "chardev");
|
896 |
return -1; |
897 |
} |
898 |
|
899 |
if (dev->filter_str) {
|
900 |
i = usbredirfilter_string_to_rules(dev->filter_str, ":", "|", |
901 |
&dev->filter_rules, |
902 |
&dev->filter_rules_count); |
903 |
if (i) {
|
904 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "filter",
|
905 |
"a usb device filter string");
|
906 |
return -1; |
907 |
} |
908 |
} |
909 |
|
910 |
dev->open_close_bh = qemu_bh_new(usbredir_open_close_bh, dev); |
911 |
dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); |
912 |
|
913 |
QTAILQ_INIT(&dev->asyncq); |
914 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
915 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
916 |
} |
917 |
|
918 |
/* We'll do the attach once we receive the speed from the usb-host */
|
919 |
udev->auto_attach = 0;
|
920 |
|
921 |
/* Let the backend know we are ready */
|
922 |
qemu_chr_fe_open(dev->cs); |
923 |
qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, |
924 |
usbredir_chardev_read, usbredir_chardev_event, dev); |
925 |
|
926 |
return 0; |
927 |
} |
928 |
|
929 |
static void usbredir_cleanup_device_queues(USBRedirDevice *dev) |
930 |
{ |
931 |
AsyncURB *aurb, *next_aurb; |
932 |
int i;
|
933 |
|
934 |
QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) { |
935 |
async_free(dev, aurb); |
936 |
} |
937 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
938 |
usbredir_free_bufpq(dev, I2EP(i)); |
939 |
} |
940 |
} |
941 |
|
942 |
static void usbredir_handle_destroy(USBDevice *udev) |
943 |
{ |
944 |
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); |
945 |
|
946 |
qemu_chr_fe_close(dev->cs); |
947 |
qemu_chr_delete(dev->cs); |
948 |
/* Note must be done after qemu_chr_close, as that causes a close event */
|
949 |
qemu_bh_delete(dev->open_close_bh); |
950 |
|
951 |
qemu_del_timer(dev->attach_timer); |
952 |
qemu_free_timer(dev->attach_timer); |
953 |
|
954 |
usbredir_cleanup_device_queues(dev); |
955 |
|
956 |
if (dev->parser) {
|
957 |
usbredirparser_destroy(dev->parser); |
958 |
} |
959 |
|
960 |
free(dev->filter_rules); |
961 |
} |
962 |
|
963 |
static int usbredir_check_filter(USBRedirDevice *dev) |
964 |
{ |
965 |
if (dev->interface_info.interface_count == 0) { |
966 |
ERROR("No interface info for device\n");
|
967 |
goto error;
|
968 |
} |
969 |
|
970 |
if (dev->filter_rules) {
|
971 |
if (!usbredirparser_peer_has_cap(dev->parser,
|
972 |
usb_redir_cap_connect_device_version)) { |
973 |
ERROR("Device filter specified and peer does not have the "
|
974 |
"connect_device_version capability\n");
|
975 |
goto error;
|
976 |
} |
977 |
|
978 |
if (usbredirfilter_check(
|
979 |
dev->filter_rules, |
980 |
dev->filter_rules_count, |
981 |
dev->device_info.device_class, |
982 |
dev->device_info.device_subclass, |
983 |
dev->device_info.device_protocol, |
984 |
dev->interface_info.interface_class, |
985 |
dev->interface_info.interface_subclass, |
986 |
dev->interface_info.interface_protocol, |
987 |
dev->interface_info.interface_count, |
988 |
dev->device_info.vendor_id, |
989 |
dev->device_info.product_id, |
990 |
dev->device_info.device_version_bcd, |
991 |
0) != 0) { |
992 |
goto error;
|
993 |
} |
994 |
} |
995 |
|
996 |
return 0; |
997 |
|
998 |
error:
|
999 |
usbredir_device_disconnect(dev); |
1000 |
if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) {
|
1001 |
usbredirparser_send_filter_reject(dev->parser); |
1002 |
usbredirparser_do_write(dev->parser); |
1003 |
} |
1004 |
return -1; |
1005 |
} |
1006 |
|
1007 |
/*
|
1008 |
* usbredirparser packet complete callbacks
|
1009 |
*/
|
1010 |
|
1011 |
static int usbredir_handle_status(USBRedirDevice *dev, |
1012 |
int status, int actual_len) |
1013 |
{ |
1014 |
switch (status) {
|
1015 |
case usb_redir_success:
|
1016 |
return actual_len;
|
1017 |
case usb_redir_stall:
|
1018 |
return USB_RET_STALL;
|
1019 |
case usb_redir_cancelled:
|
1020 |
WARNING("returning cancelled packet to HC?\n");
|
1021 |
case usb_redir_inval:
|
1022 |
case usb_redir_ioerror:
|
1023 |
case usb_redir_timeout:
|
1024 |
default:
|
1025 |
return USB_RET_NAK;
|
1026 |
} |
1027 |
} |
1028 |
|
1029 |
static void usbredir_hello(void *priv, struct usb_redir_hello_header *h) |
1030 |
{ |
1031 |
USBRedirDevice *dev = priv; |
1032 |
|
1033 |
/* Try to send the filter info now that we've the usb-host's caps */
|
1034 |
if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter) &&
|
1035 |
dev->filter_rules) { |
1036 |
usbredirparser_send_filter_filter(dev->parser, dev->filter_rules, |
1037 |
dev->filter_rules_count); |
1038 |
usbredirparser_do_write(dev->parser); |
1039 |
} |
1040 |
} |
1041 |
|
1042 |
static void usbredir_device_connect(void *priv, |
1043 |
struct usb_redir_device_connect_header *device_connect)
|
1044 |
{ |
1045 |
USBRedirDevice *dev = priv; |
1046 |
const char *speed; |
1047 |
|
1048 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1049 |
ERROR("Received device connect while already connected\n");
|
1050 |
return;
|
1051 |
} |
1052 |
|
1053 |
switch (device_connect->speed) {
|
1054 |
case usb_redir_speed_low:
|
1055 |
speed = "low speed";
|
1056 |
dev->dev.speed = USB_SPEED_LOW; |
1057 |
break;
|
1058 |
case usb_redir_speed_full:
|
1059 |
speed = "full speed";
|
1060 |
dev->dev.speed = USB_SPEED_FULL; |
1061 |
break;
|
1062 |
case usb_redir_speed_high:
|
1063 |
speed = "high speed";
|
1064 |
dev->dev.speed = USB_SPEED_HIGH; |
1065 |
break;
|
1066 |
case usb_redir_speed_super:
|
1067 |
speed = "super speed";
|
1068 |
dev->dev.speed = USB_SPEED_SUPER; |
1069 |
break;
|
1070 |
default:
|
1071 |
speed = "unknown speed";
|
1072 |
dev->dev.speed = USB_SPEED_FULL; |
1073 |
} |
1074 |
|
1075 |
if (usbredirparser_peer_has_cap(dev->parser,
|
1076 |
usb_redir_cap_connect_device_version)) { |
1077 |
INFO("attaching %s device %04x:%04x version %d.%d class %02x\n",
|
1078 |
speed, device_connect->vendor_id, device_connect->product_id, |
1079 |
((device_connect->device_version_bcd & 0xf000) >> 12) * 10 + |
1080 |
((device_connect->device_version_bcd & 0x0f00) >> 8), |
1081 |
((device_connect->device_version_bcd & 0x00f0) >> 4) * 10 + |
1082 |
((device_connect->device_version_bcd & 0x000f) >> 0), |
1083 |
device_connect->device_class); |
1084 |
} else {
|
1085 |
INFO("attaching %s device %04x:%04x class %02x\n", speed,
|
1086 |
device_connect->vendor_id, device_connect->product_id, |
1087 |
device_connect->device_class); |
1088 |
} |
1089 |
|
1090 |
dev->dev.speedmask = (1 << dev->dev.speed);
|
1091 |
dev->device_info = *device_connect; |
1092 |
|
1093 |
if (usbredir_check_filter(dev)) {
|
1094 |
WARNING("Device %04x:%04x rejected by device filter, not attaching\n",
|
1095 |
device_connect->vendor_id, device_connect->product_id); |
1096 |
return;
|
1097 |
} |
1098 |
|
1099 |
qemu_mod_timer(dev->attach_timer, dev->next_attach_time); |
1100 |
} |
1101 |
|
1102 |
static void usbredir_device_disconnect(void *priv) |
1103 |
{ |
1104 |
USBRedirDevice *dev = priv; |
1105 |
int i;
|
1106 |
|
1107 |
/* Stop any pending attaches */
|
1108 |
qemu_del_timer(dev->attach_timer); |
1109 |
|
1110 |
if (dev->dev.attached) {
|
1111 |
usb_device_detach(&dev->dev); |
1112 |
/*
|
1113 |
* Delay next usb device attach to give the guest a chance to see
|
1114 |
* see the detach / attach in case of quick close / open succession
|
1115 |
*/
|
1116 |
dev->next_attach_time = qemu_get_clock_ms(vm_clock) + 200;
|
1117 |
} |
1118 |
|
1119 |
/* Reset state so that the next dev connected starts with a clean slate */
|
1120 |
usbredir_cleanup_device_queues(dev); |
1121 |
memset(dev->endpoint, 0, sizeof(dev->endpoint)); |
1122 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1123 |
QTAILQ_INIT(&dev->endpoint[i].bufpq); |
1124 |
} |
1125 |
dev->interface_info.interface_count = 0;
|
1126 |
} |
1127 |
|
1128 |
static void usbredir_interface_info(void *priv, |
1129 |
struct usb_redir_interface_info_header *interface_info)
|
1130 |
{ |
1131 |
USBRedirDevice *dev = priv; |
1132 |
|
1133 |
dev->interface_info = *interface_info; |
1134 |
|
1135 |
/*
|
1136 |
* If we receive interface info after the device has already been
|
1137 |
* connected (ie on a set_config), re-check the filter.
|
1138 |
*/
|
1139 |
if (qemu_timer_pending(dev->attach_timer) || dev->dev.attached) {
|
1140 |
if (usbredir_check_filter(dev)) {
|
1141 |
ERROR("Device no longer matches filter after interface info "
|
1142 |
"change, disconnecting!\n");
|
1143 |
} |
1144 |
} |
1145 |
} |
1146 |
|
1147 |
static void usbredir_ep_info(void *priv, |
1148 |
struct usb_redir_ep_info_header *ep_info)
|
1149 |
{ |
1150 |
USBRedirDevice *dev = priv; |
1151 |
int i;
|
1152 |
|
1153 |
for (i = 0; i < MAX_ENDPOINTS; i++) { |
1154 |
dev->endpoint[i].type = ep_info->type[i]; |
1155 |
dev->endpoint[i].interval = ep_info->interval[i]; |
1156 |
dev->endpoint[i].interface = ep_info->interface[i]; |
1157 |
switch (dev->endpoint[i].type) {
|
1158 |
case usb_redir_type_invalid:
|
1159 |
break;
|
1160 |
case usb_redir_type_iso:
|
1161 |
case usb_redir_type_interrupt:
|
1162 |
if (dev->endpoint[i].interval == 0) { |
1163 |
ERROR("Received 0 interval for isoc or irq endpoint\n");
|
1164 |
usbredir_device_disconnect(dev); |
1165 |
} |
1166 |
/* Fall through */
|
1167 |
case usb_redir_type_control:
|
1168 |
case usb_redir_type_bulk:
|
1169 |
DPRINTF("ep: %02X type: %d interface: %d\n", I2EP(i),
|
1170 |
dev->endpoint[i].type, dev->endpoint[i].interface); |
1171 |
break;
|
1172 |
default:
|
1173 |
ERROR("Received invalid endpoint type\n");
|
1174 |
usbredir_device_disconnect(dev); |
1175 |
} |
1176 |
} |
1177 |
} |
1178 |
|
1179 |
static void usbredir_configuration_status(void *priv, uint32_t id, |
1180 |
struct usb_redir_configuration_status_header *config_status)
|
1181 |
{ |
1182 |
USBRedirDevice *dev = priv; |
1183 |
AsyncURB *aurb; |
1184 |
int len = 0; |
1185 |
|
1186 |
DPRINTF("set config status %d config %d id %u\n", config_status->status,
|
1187 |
config_status->configuration, 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] = config_status->configuration;
|
1196 |
len = 1;
|
1197 |
} |
1198 |
aurb->packet->result = |
1199 |
usbredir_handle_status(dev, config_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_alt_setting_status(void *priv, uint32_t id, |
1206 |
struct usb_redir_alt_setting_status_header *alt_setting_status)
|
1207 |
{ |
1208 |
USBRedirDevice *dev = priv; |
1209 |
AsyncURB *aurb; |
1210 |
int len = 0; |
1211 |
|
1212 |
DPRINTF("alt status %d intf %d alt %d id: %u\n",
|
1213 |
alt_setting_status->status, |
1214 |
alt_setting_status->interface, |
1215 |
alt_setting_status->alt, id); |
1216 |
|
1217 |
aurb = async_find(dev, id); |
1218 |
if (!aurb) {
|
1219 |
return;
|
1220 |
} |
1221 |
if (aurb->packet) {
|
1222 |
if (aurb->get) {
|
1223 |
dev->dev.data_buf[0] = alt_setting_status->alt;
|
1224 |
len = 1;
|
1225 |
} |
1226 |
aurb->packet->result = |
1227 |
usbredir_handle_status(dev, alt_setting_status->status, len); |
1228 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1229 |
} |
1230 |
async_free(dev, aurb); |
1231 |
} |
1232 |
|
1233 |
static void usbredir_iso_stream_status(void *priv, uint32_t id, |
1234 |
struct usb_redir_iso_stream_status_header *iso_stream_status)
|
1235 |
{ |
1236 |
USBRedirDevice *dev = priv; |
1237 |
uint8_t ep = iso_stream_status->endpoint; |
1238 |
|
1239 |
DPRINTF("iso status %d ep %02X id %u\n", iso_stream_status->status,
|
1240 |
ep, id); |
1241 |
|
1242 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) {
|
1243 |
return;
|
1244 |
} |
1245 |
|
1246 |
dev->endpoint[EP2I(ep)].iso_error = iso_stream_status->status; |
1247 |
if (iso_stream_status->status == usb_redir_stall) {
|
1248 |
DPRINTF("iso stream stopped by peer ep %02X\n", ep);
|
1249 |
dev->endpoint[EP2I(ep)].iso_started = 0;
|
1250 |
} |
1251 |
} |
1252 |
|
1253 |
static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, |
1254 |
struct usb_redir_interrupt_receiving_status_header
|
1255 |
*interrupt_receiving_status) |
1256 |
{ |
1257 |
USBRedirDevice *dev = priv; |
1258 |
uint8_t ep = interrupt_receiving_status->endpoint; |
1259 |
|
1260 |
DPRINTF("interrupt recv status %d ep %02X id %u\n",
|
1261 |
interrupt_receiving_status->status, ep, id); |
1262 |
|
1263 |
if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) {
|
1264 |
return;
|
1265 |
} |
1266 |
|
1267 |
dev->endpoint[EP2I(ep)].interrupt_error = |
1268 |
interrupt_receiving_status->status; |
1269 |
if (interrupt_receiving_status->status == usb_redir_stall) {
|
1270 |
DPRINTF("interrupt receiving stopped by peer ep %02X\n", ep);
|
1271 |
dev->endpoint[EP2I(ep)].interrupt_started = 0;
|
1272 |
} |
1273 |
} |
1274 |
|
1275 |
static void usbredir_bulk_streams_status(void *priv, uint32_t id, |
1276 |
struct usb_redir_bulk_streams_status_header *bulk_streams_status)
|
1277 |
{ |
1278 |
} |
1279 |
|
1280 |
static void usbredir_control_packet(void *priv, uint32_t id, |
1281 |
struct usb_redir_control_packet_header *control_packet,
|
1282 |
uint8_t *data, int data_len)
|
1283 |
{ |
1284 |
USBRedirDevice *dev = priv; |
1285 |
int len = control_packet->length;
|
1286 |
AsyncURB *aurb; |
1287 |
|
1288 |
DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status,
|
1289 |
len, id); |
1290 |
|
1291 |
aurb = async_find(dev, id); |
1292 |
if (!aurb) {
|
1293 |
free(data); |
1294 |
return;
|
1295 |
} |
1296 |
|
1297 |
aurb->control_packet.status = control_packet->status; |
1298 |
aurb->control_packet.length = control_packet->length; |
1299 |
if (memcmp(&aurb->control_packet, control_packet,
|
1300 |
sizeof(*control_packet))) {
|
1301 |
ERROR("return control packet mismatch, please report this!\n");
|
1302 |
len = USB_RET_NAK; |
1303 |
} |
1304 |
|
1305 |
if (aurb->packet) {
|
1306 |
len = usbredir_handle_status(dev, control_packet->status, len); |
1307 |
if (len > 0) { |
1308 |
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
1309 |
if (data_len <= sizeof(dev->dev.data_buf)) { |
1310 |
memcpy(dev->dev.data_buf, data, data_len); |
1311 |
} else {
|
1312 |
ERROR("ctrl buffer too small (%d > %zu)\n",
|
1313 |
data_len, sizeof(dev->dev.data_buf));
|
1314 |
len = USB_RET_STALL; |
1315 |
} |
1316 |
} |
1317 |
aurb->packet->result = len; |
1318 |
usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); |
1319 |
} |
1320 |
async_free(dev, aurb); |
1321 |
free(data); |
1322 |
} |
1323 |
|
1324 |
static void usbredir_bulk_packet(void *priv, uint32_t id, |
1325 |
struct usb_redir_bulk_packet_header *bulk_packet,
|
1326 |
uint8_t *data, int data_len)
|
1327 |
{ |
1328 |
USBRedirDevice *dev = priv; |
1329 |
uint8_t ep = bulk_packet->endpoint; |
1330 |
int len = bulk_packet->length;
|
1331 |
AsyncURB *aurb; |
1332 |
|
1333 |
DPRINTF("bulk-in status %d ep %02X len %d id %u\n", bulk_packet->status,
|
1334 |
ep, len, id); |
1335 |
|
1336 |
aurb = async_find(dev, id); |
1337 |
if (!aurb) {
|
1338 |
free(data); |
1339 |
return;
|
1340 |
} |
1341 |
|
1342 |
if (aurb->bulk_packet.endpoint != bulk_packet->endpoint ||
|
1343 |
aurb->bulk_packet.stream_id != bulk_packet->stream_id) { |
1344 |
ERROR("return bulk packet mismatch, please report this!\n");
|
1345 |
len = USB_RET_NAK; |
1346 |
} |
1347 |
|
1348 |
if (aurb->packet) {
|
1349 |
len = usbredir_handle_status(dev, bulk_packet->status, len); |
1350 |
if (len > 0) { |
1351 |
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
1352 |
if (data_len <= aurb->packet->iov.size) {
|
1353 |
usb_packet_copy(aurb->packet, data, data_len); |
1354 |
} else {
|
1355 |
ERROR("bulk buffer too small (%d > %zd)\n", data_len,
|
1356 |
aurb->packet->iov.size); |
1357 |
len = USB_RET_STALL; |
1358 |
} |
1359 |
} |
1360 |
aurb->packet->result = len; |
1361 |
usb_packet_complete(&dev->dev, aurb->packet); |
1362 |
} |
1363 |
async_free(dev, aurb); |
1364 |
free(data); |
1365 |
} |
1366 |
|
1367 |
static void usbredir_iso_packet(void *priv, uint32_t id, |
1368 |
struct usb_redir_iso_packet_header *iso_packet,
|
1369 |
uint8_t *data, int data_len)
|
1370 |
{ |
1371 |
USBRedirDevice *dev = priv; |
1372 |
uint8_t ep = iso_packet->endpoint; |
1373 |
|
1374 |
DPRINTF2("iso-in status %d ep %02X len %d id %u\n", iso_packet->status, ep,
|
1375 |
data_len, id); |
1376 |
|
1377 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) {
|
1378 |
ERROR("received iso packet for non iso endpoint %02X\n", ep);
|
1379 |
free(data); |
1380 |
return;
|
1381 |
} |
1382 |
|
1383 |
if (dev->endpoint[EP2I(ep)].iso_started == 0) { |
1384 |
DPRINTF("received iso packet for non started stream ep %02X\n", ep);
|
1385 |
free(data); |
1386 |
return;
|
1387 |
} |
1388 |
|
1389 |
/* bufp_alloc also adds the packet to the ep queue */
|
1390 |
bufp_alloc(dev, data, data_len, iso_packet->status, ep); |
1391 |
} |
1392 |
|
1393 |
static void usbredir_interrupt_packet(void *priv, uint32_t id, |
1394 |
struct usb_redir_interrupt_packet_header *interrupt_packet,
|
1395 |
uint8_t *data, int data_len)
|
1396 |
{ |
1397 |
USBRedirDevice *dev = priv; |
1398 |
uint8_t ep = interrupt_packet->endpoint; |
1399 |
|
1400 |
DPRINTF("interrupt-in status %d ep %02X len %d id %u\n",
|
1401 |
interrupt_packet->status, ep, data_len, id); |
1402 |
|
1403 |
if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) {
|
1404 |
ERROR("received int packet for non interrupt endpoint %02X\n", ep);
|
1405 |
free(data); |
1406 |
return;
|
1407 |
} |
1408 |
|
1409 |
if (ep & USB_DIR_IN) {
|
1410 |
if (dev->endpoint[EP2I(ep)].interrupt_started == 0) { |
1411 |
DPRINTF("received int packet while not started ep %02X\n", ep);
|
1412 |
free(data); |
1413 |
return;
|
1414 |
} |
1415 |
|
1416 |
/* bufp_alloc also adds the packet to the ep queue */
|
1417 |
bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); |
1418 |
} else {
|
1419 |
int len = interrupt_packet->length;
|
1420 |
|
1421 |
AsyncURB *aurb = async_find(dev, id); |
1422 |
if (!aurb) {
|
1423 |
return;
|
1424 |
} |
1425 |
|
1426 |
if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) {
|
1427 |
ERROR("return int packet mismatch, please report this!\n");
|
1428 |
len = USB_RET_NAK; |
1429 |
} |
1430 |
|
1431 |
if (aurb->packet) {
|
1432 |
aurb->packet->result = usbredir_handle_status(dev, |
1433 |
interrupt_packet->status, len); |
1434 |
usb_packet_complete(&dev->dev, aurb->packet); |
1435 |
} |
1436 |
async_free(dev, aurb); |
1437 |
} |
1438 |
} |
1439 |
|
1440 |
static Property usbredir_properties[] = {
|
1441 |
DEFINE_PROP_CHR("chardev", USBRedirDevice, cs),
|
1442 |
DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, 0), |
1443 |
DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str),
|
1444 |
DEFINE_PROP_END_OF_LIST(), |
1445 |
}; |
1446 |
|
1447 |
static void usbredir_class_initfn(ObjectClass *klass, void *data) |
1448 |
{ |
1449 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
1450 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1451 |
|
1452 |
uc->init = usbredir_initfn; |
1453 |
uc->product_desc = "USB Redirection Device";
|
1454 |
uc->handle_destroy = usbredir_handle_destroy; |
1455 |
uc->cancel_packet = usbredir_cancel_packet; |
1456 |
uc->handle_reset = usbredir_handle_reset; |
1457 |
uc->handle_data = usbredir_handle_data; |
1458 |
uc->handle_control = usbredir_handle_control; |
1459 |
dc->props = usbredir_properties; |
1460 |
} |
1461 |
|
1462 |
static TypeInfo usbredir_dev_info = {
|
1463 |
.name = "usb-redir",
|
1464 |
.parent = TYPE_USB_DEVICE, |
1465 |
.instance_size = sizeof(USBRedirDevice),
|
1466 |
.class_init = usbredir_class_initfn, |
1467 |
}; |
1468 |
|
1469 |
static void usbredir_register_types(void) |
1470 |
{ |
1471 |
type_register_static(&usbredir_dev_info); |
1472 |
} |
1473 |
|
1474 |
type_init(usbredir_register_types) |