Fix libvirt + seccomp combo (bz #855162) Fix scsi hotplug crash (bz #879657) Fix QOM refcount crash (bz #881486)
503 lines
18 KiB
Diff
503 lines
18 KiB
Diff
From 111194442fa38ba6dc26bc695ba0d3b76584663b Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Tue, 28 Aug 2012 11:30:13 +0200
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Subject: [PATCH] usb-redir: Move to core packet id and queue handling
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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(cherry picked from commit de550a6afb468ed3b8171019e19b63ae8254886d)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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hw/usb/redirect.c | 226 ++++++++++++++++++++++--------------------------------
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1 file changed, 92 insertions(+), 134 deletions(-)
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diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
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index 6593d50..fd1f8cc 100644
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--- a/hw/usb/redirect.c
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+++ b/hw/usb/redirect.c
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@@ -43,7 +43,7 @@
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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 Cancelled Cancelled;
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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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@@ -86,8 +86,7 @@ struct USBRedirDevice {
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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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+ QTAILQ_HEAD(, Cancelled) cancelled;
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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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@@ -95,10 +94,9 @@ struct USBRedirDevice {
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int filter_rules_count;
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};
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-struct AsyncURB {
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- USBPacket *packet;
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- uint32_t packet_id;
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- QTAILQ_ENTRY(AsyncURB)next;
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+struct Cancelled {
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+ uint64_t id;
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+ QTAILQ_ENTRY(Cancelled)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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@@ -238,57 +236,58 @@ static int usbredir_write(void *priv, uint8_t *data, int count)
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}
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/*
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- * Async and buffered packets helpers
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+ * Cancelled and buffered packets helpers
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*/
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-static AsyncURB *async_alloc(USBRedirDevice *dev, USBPacket *p)
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+static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p)
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{
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- AsyncURB *aurb = (AsyncURB *) g_malloc0(sizeof(AsyncURB));
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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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+ USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev);
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+ Cancelled *c;
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- return aurb;
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-}
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+ DPRINTF("cancel packet id %"PRIu64"\n", p->id);
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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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+ c = g_malloc0(sizeof(Cancelled));
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+ c->id = p->id;
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+ QTAILQ_INSERT_TAIL(&dev->cancelled, c, next);
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+
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+ usbredirparser_send_cancel_data_packet(dev->parser, p->id);
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+ usbredirparser_do_write(dev->parser);
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}
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-static AsyncURB *async_find(USBRedirDevice *dev, uint32_t packet_id)
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+static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id)
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{
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- AsyncURB *aurb;
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+ Cancelled *c;
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+
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+ if (!dev->dev.attached) {
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+ return 1; /* Treat everything as cancelled after a disconnect */
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+ }
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- 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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+ QTAILQ_FOREACH(c, &dev->cancelled, next) {
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+ if (c->id == id) {
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+ QTAILQ_REMOVE(&dev->cancelled, c, next);
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+ g_free(c);
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+ return 1;
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}
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}
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- DPRINTF("could not find async urb for packet_id %u\n", packet_id);
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- return NULL;
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+ return 0;
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}
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-static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p)
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+static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev,
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+ uint8_t ep, uint64_t id)
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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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-
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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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+ USBPacket *p;
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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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+ if (usbredir_is_cancelled(dev, id)) {
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+ return NULL;
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+ }
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- /* Mark it as dead */
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- aurb->packet = NULL;
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- break;
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+ p = usb_ep_find_packet_by_id(&dev->dev,
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+ (ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT,
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+ ep & 0x0f, id);
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+ if (p == NULL) {
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+ ERROR("could not find packet with id %"PRIu64"\n", id);
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}
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+ return p;
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}
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static void bufp_alloc(USBRedirDevice *dev,
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@@ -484,24 +483,22 @@ static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep)
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static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p,
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uint8_t ep)
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{
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- AsyncURB *aurb = async_alloc(dev, p);
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struct usb_redir_bulk_packet_header bulk_packet;
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- DPRINTF("bulk-out ep %02X len %zd id %u\n", ep,
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- p->iov.size, aurb->packet_id);
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+ DPRINTF("bulk-out ep %02X len %zd id %"PRIu64"\n", ep, p->iov.size, p->id);
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bulk_packet.endpoint = ep;
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bulk_packet.length = p->iov.size;
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bulk_packet.stream_id = 0;
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if (ep & USB_DIR_IN) {
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- usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id,
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+ usbredirparser_send_bulk_packet(dev->parser, p->id,
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&bulk_packet, NULL, 0);
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} else {
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uint8_t buf[p->iov.size];
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usb_packet_copy(p, buf, p->iov.size);
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usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
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- usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id,
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+ usbredirparser_send_bulk_packet(dev->parser, p->id,
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&bulk_packet, buf, p->iov.size);
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}
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usbredirparser_do_write(dev->parser);
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@@ -564,19 +561,18 @@ static int usbredir_handle_interrupt_data(USBRedirDevice *dev,
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return len;
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} else {
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/* Output interrupt endpoint, normal async operation */
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- AsyncURB *aurb = async_alloc(dev, p);
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struct usb_redir_interrupt_packet_header interrupt_packet;
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uint8_t buf[p->iov.size];
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- DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size,
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- aurb->packet_id);
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+ DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep,
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+ p->iov.size, p->id);
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interrupt_packet.endpoint = ep;
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interrupt_packet.length = p->iov.size;
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usb_packet_copy(p, buf, p->iov.size);
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usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size);
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- usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id,
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+ usbredirparser_send_interrupt_packet(dev->parser, p->id,
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&interrupt_packet, buf, p->iov.size);
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usbredirparser_do_write(dev->parser);
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return USB_RET_ASYNC;
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@@ -630,10 +626,9 @@ static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p,
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int config)
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{
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struct usb_redir_set_configuration_header set_config;
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- AsyncURB *aurb = async_alloc(dev, p);
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int i;
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- DPRINTF("set config %d id %u\n", config, aurb->packet_id);
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+ DPRINTF("set config %d id %"PRIu64"\n", config, p->id);
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for (i = 0; i < MAX_ENDPOINTS; i++) {
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switch (dev->endpoint[i].type) {
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@@ -650,19 +645,16 @@ static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p,
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}
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set_config.configuration = config;
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- usbredirparser_send_set_configuration(dev->parser, aurb->packet_id,
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- &set_config);
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+ usbredirparser_send_set_configuration(dev->parser, p->id, &set_config);
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usbredirparser_do_write(dev->parser);
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return USB_RET_ASYNC;
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}
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static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p)
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{
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- AsyncURB *aurb = async_alloc(dev, p);
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-
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- DPRINTF("get config id %u\n", aurb->packet_id);
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+ DPRINTF("get config id %"PRIu64"\n", p->id);
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- usbredirparser_send_get_configuration(dev->parser, aurb->packet_id);
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+ usbredirparser_send_get_configuration(dev->parser, p->id);
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usbredirparser_do_write(dev->parser);
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return USB_RET_ASYNC;
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}
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@@ -671,11 +663,9 @@ static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p,
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int interface, int alt)
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{
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struct usb_redir_set_alt_setting_header set_alt;
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- AsyncURB *aurb = async_alloc(dev, p);
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int i;
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- DPRINTF("set interface %d alt %d id %u\n", interface, alt,
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- aurb->packet_id);
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+ DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id);
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for (i = 0; i < MAX_ENDPOINTS; i++) {
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if (dev->endpoint[i].interface == interface) {
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@@ -695,8 +685,7 @@ static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p,
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set_alt.interface = interface;
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set_alt.alt = alt;
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- usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id,
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- &set_alt);
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+ usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt);
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usbredirparser_do_write(dev->parser);
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return USB_RET_ASYNC;
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}
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@@ -705,13 +694,11 @@ static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p,
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int interface)
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{
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struct usb_redir_get_alt_setting_header get_alt;
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- AsyncURB *aurb = async_alloc(dev, p);
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- DPRINTF("get interface %d id %u\n", interface, aurb->packet_id);
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+ DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id);
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get_alt.interface = interface;
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- usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id,
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- &get_alt);
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+ usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt);
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usbredirparser_do_write(dev->parser);
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return USB_RET_ASYNC;
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}
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@@ -721,7 +708,6 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p,
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{
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USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev);
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struct usb_redir_control_packet_header control_packet;
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- AsyncURB *aurb;
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/* Special cases for certain standard device requests */
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switch (request) {
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@@ -739,13 +725,10 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p,
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return usbredir_get_interface(dev, p, index);
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}
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- /* "Normal" ctrl requests */
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- aurb = async_alloc(dev, p);
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-
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- /* Note request is (bRequestType << 8) | bRequest */
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- DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n",
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- request >> 8, request & 0xff, value, index, length,
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- aurb->packet_id);
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+ /* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */
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+ DPRINTF(
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+ "ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n",
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+ request >> 8, request & 0xff, value, index, length, p->id);
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control_packet.request = request & 0xFF;
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control_packet.requesttype = request >> 8;
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@@ -755,11 +738,11 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p,
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control_packet.length = length;
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if (control_packet.requesttype & USB_DIR_IN) {
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- usbredirparser_send_control_packet(dev->parser, aurb->packet_id,
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+ usbredirparser_send_control_packet(dev->parser, p->id,
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&control_packet, NULL, 0);
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} else {
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usbredir_log_data(dev, "ctrl data out:", data, length);
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- usbredirparser_send_control_packet(dev->parser, aurb->packet_id,
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+ usbredirparser_send_control_packet(dev->parser, p->id,
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&control_packet, data, length);
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}
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usbredirparser_do_write(dev->parser);
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@@ -913,7 +896,7 @@ static int usbredir_initfn(USBDevice *udev)
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dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev);
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dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev);
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- QTAILQ_INIT(&dev->asyncq);
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+ QTAILQ_INIT(&dev->cancelled);
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for (i = 0; i < MAX_ENDPOINTS; i++) {
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QTAILQ_INIT(&dev->endpoint[i].bufpq);
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}
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@@ -932,11 +915,12 @@ static int usbredir_initfn(USBDevice *udev)
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static void usbredir_cleanup_device_queues(USBRedirDevice *dev)
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{
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- AsyncURB *aurb, *next_aurb;
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+ Cancelled *c, *next_c;
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int i;
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- QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) {
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- async_free(dev, aurb);
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+ QTAILQ_FOREACH_SAFE(c, &dev->cancelled, next, next_c) {
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+ QTAILQ_REMOVE(&dev->cancelled, c, next);
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+ g_free(c);
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}
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for (i = 0; i < MAX_ENDPOINTS; i++) {
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usbredir_free_bufpq(dev, I2EP(i));
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@@ -1202,33 +1186,28 @@ static void usbredir_configuration_status(void *priv, uint32_t id,
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struct usb_redir_configuration_status_header *config_status)
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{
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USBRedirDevice *dev = priv;
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- AsyncURB *aurb;
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+ USBPacket *p;
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int len = 0;
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DPRINTF("set config status %d config %d id %u\n", config_status->status,
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config_status->configuration, id);
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- aurb = async_find(dev, id);
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- if (!aurb) {
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- return;
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- }
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- if (aurb->packet) {
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+ p = usbredir_find_packet_by_id(dev, 0, id);
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+ if (p) {
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if (dev->dev.setup_buf[0] & USB_DIR_IN) {
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dev->dev.data_buf[0] = config_status->configuration;
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len = 1;
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}
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- aurb->packet->result =
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- usbredir_handle_status(dev, config_status->status, len);
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- usb_generic_async_ctrl_complete(&dev->dev, aurb->packet);
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+ p->result = usbredir_handle_status(dev, config_status->status, len);
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+ usb_generic_async_ctrl_complete(&dev->dev, p);
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}
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- async_free(dev, aurb);
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}
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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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{
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USBRedirDevice *dev = priv;
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- AsyncURB *aurb;
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+ USBPacket *p;
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int len = 0;
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DPRINTF("alt status %d intf %d alt %d id: %u\n",
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@@ -1236,20 +1215,16 @@ static void usbredir_alt_setting_status(void *priv, uint32_t id,
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alt_setting_status->interface,
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alt_setting_status->alt, id);
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- aurb = async_find(dev, id);
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- if (!aurb) {
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- return;
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- }
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- if (aurb->packet) {
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+ p = usbredir_find_packet_by_id(dev, 0, id);
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+ if (p) {
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if (dev->dev.setup_buf[0] & USB_DIR_IN) {
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dev->dev.data_buf[0] = alt_setting_status->alt;
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len = 1;
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}
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- aurb->packet->result =
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+ p->result =
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usbredir_handle_status(dev, alt_setting_status->status, len);
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- usb_generic_async_ctrl_complete(&dev->dev, aurb->packet);
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+ usb_generic_async_ctrl_complete(&dev->dev, p);
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}
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- async_free(dev, aurb);
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}
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static void usbredir_iso_stream_status(void *priv, uint32_t id,
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@@ -1304,19 +1279,14 @@ static void usbredir_control_packet(void *priv, uint32_t id,
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uint8_t *data, int data_len)
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{
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USBRedirDevice *dev = priv;
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+ USBPacket *p;
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int len = control_packet->length;
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- AsyncURB *aurb;
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DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status,
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len, id);
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- aurb = async_find(dev, id);
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- if (!aurb) {
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- free(data);
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- return;
|
|
- }
|
|
-
|
|
- if (aurb->packet) {
|
|
+ p = usbredir_find_packet_by_id(dev, 0, id);
|
|
+ if (p) {
|
|
len = usbredir_handle_status(dev, control_packet->status, len);
|
|
if (len > 0) {
|
|
usbredir_log_data(dev, "ctrl data in:", data, data_len);
|
|
@@ -1328,10 +1298,9 @@ static void usbredir_control_packet(void *priv, uint32_t id,
|
|
len = USB_RET_STALL;
|
|
}
|
|
}
|
|
- aurb->packet->result = len;
|
|
- usb_generic_async_ctrl_complete(&dev->dev, aurb->packet);
|
|
+ p->result = len;
|
|
+ usb_generic_async_ctrl_complete(&dev->dev, p);
|
|
}
|
|
- async_free(dev, aurb);
|
|
free(data);
|
|
}
|
|
|
|
@@ -1342,33 +1311,27 @@ static void usbredir_bulk_packet(void *priv, uint32_t id,
|
|
USBRedirDevice *dev = priv;
|
|
uint8_t ep = bulk_packet->endpoint;
|
|
int len = bulk_packet->length;
|
|
- AsyncURB *aurb;
|
|
+ USBPacket *p;
|
|
|
|
DPRINTF("bulk-in status %d ep %02X len %d id %u\n", bulk_packet->status,
|
|
ep, len, id);
|
|
|
|
- aurb = async_find(dev, id);
|
|
- if (!aurb) {
|
|
- free(data);
|
|
- return;
|
|
- }
|
|
-
|
|
- if (aurb->packet) {
|
|
+ p = usbredir_find_packet_by_id(dev, ep, id);
|
|
+ if (p) {
|
|
len = usbredir_handle_status(dev, bulk_packet->status, len);
|
|
if (len > 0) {
|
|
usbredir_log_data(dev, "bulk data in:", data, data_len);
|
|
- if (data_len <= aurb->packet->iov.size) {
|
|
- usb_packet_copy(aurb->packet, data, data_len);
|
|
+ if (data_len <= p->iov.size) {
|
|
+ usb_packet_copy(p, data, data_len);
|
|
} else {
|
|
ERROR("bulk buffer too small (%d > %zd)\n", data_len,
|
|
- aurb->packet->iov.size);
|
|
+ p->iov.size);
|
|
len = USB_RET_STALL;
|
|
}
|
|
}
|
|
- aurb->packet->result = len;
|
|
- usb_packet_complete(&dev->dev, aurb->packet);
|
|
+ p->result = len;
|
|
+ usb_packet_complete(&dev->dev, p);
|
|
}
|
|
- async_free(dev, aurb);
|
|
free(data);
|
|
}
|
|
|
|
@@ -1426,17 +1389,12 @@ static void usbredir_interrupt_packet(void *priv, uint32_t id,
|
|
} else {
|
|
int len = interrupt_packet->length;
|
|
|
|
- AsyncURB *aurb = async_find(dev, id);
|
|
- if (!aurb) {
|
|
- return;
|
|
- }
|
|
-
|
|
- if (aurb->packet) {
|
|
- aurb->packet->result = usbredir_handle_status(dev,
|
|
+ USBPacket *p = usbredir_find_packet_by_id(dev, ep, id);
|
|
+ if (p) {
|
|
+ p->result = usbredir_handle_status(dev,
|
|
interrupt_packet->status, len);
|
|
- usb_packet_complete(&dev->dev, aurb->packet);
|
|
+ usb_packet_complete(&dev->dev, p);
|
|
}
|
|
- async_free(dev, aurb);
|
|
}
|
|
}
|
|
|
|
--
|
|
1.8.0.2
|
|
|