diff options
Diffstat (limited to 'hw/usb/redirect.c')
| -rw-r--r-- | hw/usb/redirect.c | 1297 |
1 files changed, 902 insertions, 395 deletions
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c index 10b4fbb..490c90f 100644 --- a/hw/usb/redirect.c +++ b/hw/usb/redirect.c @@ -1,7 +1,7 @@ /* * USB redirector usb-guest * - * Copyright (c) 2011 Red Hat, Inc. + * Copyright (c) 2011-2012 Red Hat, Inc. * * Red Hat Authors: * Hans de Goede <hdegoede@redhat.com> @@ -29,6 +29,7 @@ #include "qemu-timer.h" #include "monitor.h" #include "sysemu.h" +#include "iov.h" #include <dirent.h> #include <sys/ioctl.h> @@ -43,7 +44,6 @@ #define EP2I(ep_address) (((ep_address & 0x80) >> 3) | (ep_address & 0x0f)) #define I2EP(i) (((i & 0x10) << 3) | (i & 0x0f)) -typedef struct AsyncURB AsyncURB; typedef struct USBRedirDevice USBRedirDevice; /* Struct to hold buffered packets (iso or int input packets) */ @@ -58,6 +58,7 @@ struct endp_data { uint8_t type; uint8_t interval; uint8_t interface; /* bInterfaceNumber this ep belongs to */ + uint16_t max_packet_size; /* In bytes, not wMaxPacketSize format !! */ uint8_t iso_started; uint8_t iso_error; /* For reporting iso errors to the HC */ uint8_t interrupt_started; @@ -65,8 +66,20 @@ struct endp_data { uint8_t bufpq_prefilled; uint8_t bufpq_dropping_packets; QTAILQ_HEAD(, buf_packet) bufpq; - int bufpq_size; - int bufpq_target_size; + int32_t bufpq_size; + int32_t bufpq_target_size; +}; + +struct PacketIdQueueEntry { + uint64_t id; + QTAILQ_ENTRY(PacketIdQueueEntry)next; +}; + +struct PacketIdQueue { + USBRedirDevice *dev; + const char *name; + QTAILQ_HEAD(, PacketIdQueueEntry) head; + int size; }; struct USBRedirDevice { @@ -79,33 +92,21 @@ struct USBRedirDevice { /* Data passed from chardev the fd_read cb to the usbredirparser read cb */ const uint8_t *read_buf; int read_buf_size; - /* For async handling of open/close */ - QEMUBH *open_close_bh; + /* For async handling of close */ + QEMUBH *chardev_close_bh; /* To delay the usb attach in case of quick chardev close + open */ QEMUTimer *attach_timer; int64_t next_attach_time; struct usbredirparser *parser; struct endp_data endpoint[MAX_ENDPOINTS]; - uint32_t packet_id; - QTAILQ_HEAD(, AsyncURB) asyncq; + struct PacketIdQueue cancelled; + struct PacketIdQueue already_in_flight; /* Data for device filtering */ struct usb_redir_device_connect_header device_info; struct usb_redir_interface_info_header interface_info; struct usbredirfilter_rule *filter_rules; int filter_rules_count; -}; - -struct AsyncURB { - USBRedirDevice *dev; - USBPacket *packet; - uint32_t packet_id; - int get; - union { - struct usb_redir_control_packet_header control_packet; - struct usb_redir_bulk_packet_header bulk_packet; - struct usb_redir_interrupt_packet_header interrupt_packet; - }; - QTAILQ_ENTRY(AsyncURB)next; + int compatible_speedmask; }; static void usbredir_hello(void *priv, struct usb_redir_hello_header *h); @@ -116,32 +117,34 @@ static void usbredir_interface_info(void *priv, struct usb_redir_interface_info_header *interface_info); static void usbredir_ep_info(void *priv, struct usb_redir_ep_info_header *ep_info); -static void usbredir_configuration_status(void *priv, uint32_t id, +static void usbredir_configuration_status(void *priv, uint64_t id, struct usb_redir_configuration_status_header *configuration_status); -static void usbredir_alt_setting_status(void *priv, uint32_t id, +static void usbredir_alt_setting_status(void *priv, uint64_t id, struct usb_redir_alt_setting_status_header *alt_setting_status); -static void usbredir_iso_stream_status(void *priv, uint32_t id, +static void usbredir_iso_stream_status(void *priv, uint64_t id, struct usb_redir_iso_stream_status_header *iso_stream_status); -static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, +static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, struct usb_redir_interrupt_receiving_status_header *interrupt_receiving_status); -static void usbredir_bulk_streams_status(void *priv, uint32_t id, +static void usbredir_bulk_streams_status(void *priv, uint64_t id, struct usb_redir_bulk_streams_status_header *bulk_streams_status); -static void usbredir_control_packet(void *priv, uint32_t id, +static void usbredir_control_packet(void *priv, uint64_t id, struct usb_redir_control_packet_header *control_packet, uint8_t *data, int data_len); -static void usbredir_bulk_packet(void *priv, uint32_t id, +static void usbredir_bulk_packet(void *priv, uint64_t id, struct usb_redir_bulk_packet_header *bulk_packet, uint8_t *data, int data_len); -static void usbredir_iso_packet(void *priv, uint32_t id, +static void usbredir_iso_packet(void *priv, uint64_t id, struct usb_redir_iso_packet_header *iso_packet, uint8_t *data, int data_len); -static void usbredir_interrupt_packet(void *priv, uint32_t id, +static void usbredir_interrupt_packet(void *priv, uint64_t id, struct usb_redir_interrupt_packet_header *interrupt_header, uint8_t *data, int data_len); -static int usbredir_handle_status(USBRedirDevice *dev, - int status, int actual_len); +static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, + int status); + +#define VERSION "qemu usb-redir guest " QEMU_VERSION /* * Logging stuff @@ -241,62 +244,144 @@ static int usbredir_write(void *priv, uint8_t *data, int count) return 0; } + /* Don't send new data to the chardev until our state is fully synced */ + if (!runstate_check(RUN_STATE_RUNNING)) { + return 0; + } + return qemu_chr_fe_write(dev->cs, data, count); } /* - * Async and buffered packets helpers + * Cancelled and buffered packets helpers */ -static AsyncURB *async_alloc(USBRedirDevice *dev, USBPacket *p) +static void packet_id_queue_init(struct PacketIdQueue *q, + USBRedirDevice *dev, const char *name) +{ + q->dev = dev; + q->name = name; + QTAILQ_INIT(&q->head); + q->size = 0; +} + +static void packet_id_queue_add(struct PacketIdQueue *q, uint64_t id) { - AsyncURB *aurb = (AsyncURB *) g_malloc0(sizeof(AsyncURB)); - aurb->dev = dev; - aurb->packet = p; - aurb->packet_id = dev->packet_id; - QTAILQ_INSERT_TAIL(&dev->asyncq, aurb, next); - dev->packet_id++; + USBRedirDevice *dev = q->dev; + struct PacketIdQueueEntry *e; + + DPRINTF("adding packet id %"PRIu64" to %s queue\n", id, q->name); - return aurb; + e = g_malloc0(sizeof(struct PacketIdQueueEntry)); + e->id = id; + QTAILQ_INSERT_TAIL(&q->head, e, next); + q->size++; } -static void async_free(USBRedirDevice *dev, AsyncURB *aurb) +static int packet_id_queue_remove(struct PacketIdQueue *q, uint64_t id) { - QTAILQ_REMOVE(&dev->asyncq, aurb, next); - g_free(aurb); + USBRedirDevice *dev = q->dev; + struct PacketIdQueueEntry *e; + + QTAILQ_FOREACH(e, &q->head, next) { + if (e->id == id) { + DPRINTF("removing packet id %"PRIu64" from %s queue\n", + id, q->name); + QTAILQ_REMOVE(&q->head, e, next); + q->size--; + g_free(e); + return 1; + } + } + return 0; } -static AsyncURB *async_find(USBRedirDevice *dev, uint32_t packet_id) +static void packet_id_queue_empty(struct PacketIdQueue *q) { - AsyncURB *aurb; + USBRedirDevice *dev = q->dev; + struct PacketIdQueueEntry *e, *next_e; - QTAILQ_FOREACH(aurb, &dev->asyncq, next) { - if (aurb->packet_id == packet_id) { - return aurb; - } + DPRINTF("removing %d packet-ids from %s queue\n", q->size, q->name); + + QTAILQ_FOREACH_SAFE(e, &q->head, next, next_e) { + QTAILQ_REMOVE(&q->head, e, next); + g_free(e); } - DPRINTF("could not find async urb for packet_id %u\n", packet_id); - return NULL; + q->size = 0; } static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p) { USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); - AsyncURB *aurb; - QTAILQ_FOREACH(aurb, &dev->asyncq, next) { - if (p != aurb->packet) { + if (p->combined) { + usb_combined_packet_cancel(udev, p); + return; + } + + packet_id_queue_add(&dev->cancelled, p->id); + usbredirparser_send_cancel_data_packet(dev->parser, p->id); + usbredirparser_do_write(dev->parser); +} + +static int usbredir_is_cancelled(USBRedirDevice *dev, uint64_t id) +{ + if (!dev->dev.attached) { + return 1; /* Treat everything as cancelled after a disconnect */ + } + return packet_id_queue_remove(&dev->cancelled, id); +} + +static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev, + struct USBEndpoint *ep) +{ + static USBPacket *p; + + QTAILQ_FOREACH(p, &ep->queue, queue) { + /* Skip combined packets, except for the first */ + if (p->combined && p != p->combined->first) { continue; } + if (p->state == USB_PACKET_ASYNC) { + packet_id_queue_add(&dev->already_in_flight, p->id); + } + } +} - DPRINTF("async cancel id %u\n", aurb->packet_id); - usbredirparser_send_cancel_data_packet(dev->parser, aurb->packet_id); - usbredirparser_do_write(dev->parser); +static void usbredir_fill_already_in_flight(USBRedirDevice *dev) +{ + int ep; + struct USBDevice *udev = &dev->dev; - /* Mark it as dead */ - aurb->packet = NULL; - break; + usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_ctl); + + for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { + usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_in[ep]); + usbredir_fill_already_in_flight_from_ep(dev, &udev->ep_out[ep]); + } +} + +static int usbredir_already_in_flight(USBRedirDevice *dev, uint64_t id) +{ + return packet_id_queue_remove(&dev->already_in_flight, id); +} + +static USBPacket *usbredir_find_packet_by_id(USBRedirDevice *dev, + uint8_t ep, uint64_t id) +{ + USBPacket *p; + + if (usbredir_is_cancelled(dev, id)) { + return NULL; + } + + p = usb_ep_find_packet_by_id(&dev->dev, + (ep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT, + ep & 0x0f, id); + if (p == NULL) { + ERROR("could not find packet with id %"PRIu64"\n", id); } + return p; } static void bufp_alloc(USBRedirDevice *dev, @@ -360,7 +445,7 @@ static void usbredir_handle_reset(USBDevice *udev) usbredirparser_do_write(dev->parser); } -static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, +static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, uint8_t ep) { int status, len; @@ -417,7 +502,7 @@ static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, !dev->endpoint[EP2I(ep)].bufpq_prefilled) { if (dev->endpoint[EP2I(ep)].bufpq_size < dev->endpoint[EP2I(ep)].bufpq_target_size) { - return usbredir_handle_status(dev, 0, 0); + return; } dev->endpoint[EP2I(ep)].bufpq_prefilled = 1; } @@ -431,27 +516,23 @@ static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, /* Check iso_error for stream errors, otherwise its an underrun */ status = dev->endpoint[EP2I(ep)].iso_error; dev->endpoint[EP2I(ep)].iso_error = 0; - return status ? USB_RET_IOERROR : 0; + p->status = status ? USB_RET_IOERROR : USB_RET_SUCCESS; + return; } DPRINTF2("iso-token-in ep %02X status %d len %d queue-size: %d\n", ep, isop->status, isop->len, dev->endpoint[EP2I(ep)].bufpq_size); status = isop->status; - if (status != usb_redir_success) { - bufp_free(dev, isop, ep); - return USB_RET_IOERROR; - } - len = isop->len; if (len > p->iov.size) { ERROR("received iso data is larger then packet ep %02X (%d > %d)\n", ep, len, (int)p->iov.size); - bufp_free(dev, isop, ep); - return USB_RET_BABBLE; + len = p->iov.size; + status = usb_redir_babble; } usb_packet_copy(p, isop->data, len); bufp_free(dev, isop, ep); - return len; + usbredir_handle_status(dev, p, status); } else { /* If the stream was not started because of a pending error don't send the packet to the usb-host */ @@ -471,7 +552,7 @@ static int usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, dev->endpoint[EP2I(ep)].iso_error = 0; DPRINTF2("iso-token-out ep %02X status %d len %zd\n", ep, status, p->iov.size); - return usbredir_handle_status(dev, status, p->iov.size); + usbredir_handle_status(dev, p, status); } } @@ -489,108 +570,122 @@ static void usbredir_stop_iso_stream(USBRedirDevice *dev, uint8_t ep) usbredir_free_bufpq(dev, ep); } -static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, +static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, uint8_t ep) { - AsyncURB *aurb = async_alloc(dev, p); struct usb_redir_bulk_packet_header bulk_packet; + size_t size = (p->combined) ? p->combined->iov.size : p->iov.size; + + DPRINTF("bulk-out ep %02X len %zd id %"PRIu64"\n", ep, size, p->id); - DPRINTF("bulk-out ep %02X len %zd id %u\n", ep, - p->iov.size, aurb->packet_id); + if (usbredir_already_in_flight(dev, p->id)) { + p->status = USB_RET_ASYNC; + return; + } bulk_packet.endpoint = ep; - bulk_packet.length = p->iov.size; + bulk_packet.length = size; bulk_packet.stream_id = 0; - aurb->bulk_packet = bulk_packet; + bulk_packet.length_high = size >> 16; + assert(bulk_packet.length_high == 0 || + usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_32bits_bulk_length)); if (ep & USB_DIR_IN) { - usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, + usbredirparser_send_bulk_packet(dev->parser, p->id, &bulk_packet, NULL, 0); } else { - uint8_t buf[p->iov.size]; - usb_packet_copy(p, buf, p->iov.size); - usbredir_log_data(dev, "bulk data out:", buf, p->iov.size); - usbredirparser_send_bulk_packet(dev->parser, aurb->packet_id, - &bulk_packet, buf, p->iov.size); + uint8_t buf[size]; + if (p->combined) { + iov_to_buf(p->combined->iov.iov, p->combined->iov.niov, + 0, buf, size); + } else { + usb_packet_copy(p, buf, size); + } + usbredir_log_data(dev, "bulk data out:", buf, size); + usbredirparser_send_bulk_packet(dev->parser, p->id, + &bulk_packet, buf, size); } usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } -static int usbredir_handle_interrupt_data(USBRedirDevice *dev, - USBPacket *p, uint8_t ep) +static void usbredir_handle_interrupt_in_data(USBRedirDevice *dev, + USBPacket *p, uint8_t ep) { - if (ep & USB_DIR_IN) { - /* Input interrupt endpoint, buffered packet input */ - struct buf_packet *intp; - int status, len; - - if (!dev->endpoint[EP2I(ep)].interrupt_started && - !dev->endpoint[EP2I(ep)].interrupt_error) { - struct usb_redir_start_interrupt_receiving_header start_int = { - .endpoint = ep, - }; - /* No id, we look at the ep when receiving a status back */ - usbredirparser_send_start_interrupt_receiving(dev->parser, 0, - &start_int); - usbredirparser_do_write(dev->parser); - DPRINTF("interrupt recv started ep %02X\n", ep); - dev->endpoint[EP2I(ep)].interrupt_started = 1; - /* We don't really want to drop interrupt packets ever, but - having some upper limit to how much we buffer is good. */ - dev->endpoint[EP2I(ep)].bufpq_target_size = 1000; - dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; - } + /* Input interrupt endpoint, buffered packet input */ + struct buf_packet *intp; + int status, len; - intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); - if (intp == NULL) { - DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep); - /* Check interrupt_error for stream errors */ - status = dev->endpoint[EP2I(ep)].interrupt_error; - dev->endpoint[EP2I(ep)].interrupt_error = 0; - if (status) { - return usbredir_handle_status(dev, status, 0); - } - return USB_RET_NAK; - } - DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep, - intp->status, intp->len); + if (!dev->endpoint[EP2I(ep)].interrupt_started && + !dev->endpoint[EP2I(ep)].interrupt_error) { + struct usb_redir_start_interrupt_receiving_header start_int = { + .endpoint = ep, + }; + /* No id, we look at the ep when receiving a status back */ + usbredirparser_send_start_interrupt_receiving(dev->parser, 0, + &start_int); + usbredirparser_do_write(dev->parser); + DPRINTF("interrupt recv started ep %02X\n", ep); + dev->endpoint[EP2I(ep)].interrupt_started = 1; + /* We don't really want to drop interrupt packets ever, but + having some upper limit to how much we buffer is good. */ + dev->endpoint[EP2I(ep)].bufpq_target_size = 1000; + dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; + } - status = intp->status; - if (status != usb_redir_success) { - bufp_free(dev, intp, ep); - return usbredir_handle_status(dev, status, 0); + intp = QTAILQ_FIRST(&dev->endpoint[EP2I(ep)].bufpq); + if (intp == NULL) { + DPRINTF2("interrupt-token-in ep %02X, no intp\n", ep); + /* Check interrupt_error for stream errors */ + status = dev->endpoint[EP2I(ep)].interrupt_error; + dev->endpoint[EP2I(ep)].interrupt_error = 0; + if (status) { + usbredir_handle_status(dev, p, status); + } else { + p->status = USB_RET_NAK; } + return; + } + DPRINTF("interrupt-token-in ep %02X status %d len %d\n", ep, + intp->status, intp->len); - len = intp->len; - if (len > p->iov.size) { - ERROR("received int data is larger then packet ep %02X\n", ep); - bufp_free(dev, intp, ep); - return USB_RET_BABBLE; - } - usb_packet_copy(p, intp->data, len); - bufp_free(dev, intp, ep); - return len; - } else { - /* Output interrupt endpoint, normal async operation */ - AsyncURB *aurb = async_alloc(dev, p); - struct usb_redir_interrupt_packet_header interrupt_packet; - uint8_t buf[p->iov.size]; - - DPRINTF("interrupt-out ep %02X len %zd id %u\n", ep, p->iov.size, - aurb->packet_id); - - interrupt_packet.endpoint = ep; - interrupt_packet.length = p->iov.size; - aurb->interrupt_packet = interrupt_packet; - - usb_packet_copy(p, buf, p->iov.size); - usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size); - usbredirparser_send_interrupt_packet(dev->parser, aurb->packet_id, - &interrupt_packet, buf, p->iov.size); - usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + status = intp->status; + len = intp->len; + if (len > p->iov.size) { + ERROR("received int data is larger then packet ep %02X\n", ep); + len = p->iov.size; + status = usb_redir_babble; } + usb_packet_copy(p, intp->data, len); + bufp_free(dev, intp, ep); + usbredir_handle_status(dev, p, status); +} + +/* + * Handle interrupt out data, the usbredir protocol expects us to do this + * async, so that it can report back a completion status. But guests will + * expect immediate completion for an interrupt endpoint, and handling this + * async causes migration issues. So we report success directly, counting + * on the fact that output interrupt packets normally always succeed. + */ +static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, + USBPacket *p, uint8_t ep) +{ + struct usb_redir_interrupt_packet_header interrupt_packet; + uint8_t buf[p->iov.size]; + + DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, + p->iov.size, p->id); + + interrupt_packet.endpoint = ep; + interrupt_packet.length = p->iov.size; + + usb_packet_copy(p, buf, p->iov.size); + usbredir_log_data(dev, "interrupt data out:", buf, p->iov.size); + usbredirparser_send_interrupt_packet(dev->parser, p->id, + &interrupt_packet, buf, p->iov.size); + usbredirparser_do_write(dev->parser); } static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, @@ -609,7 +704,7 @@ static void usbredir_stop_interrupt_receiving(USBRedirDevice *dev, usbredir_free_bufpq(dev, ep); } -static int usbredir_handle_data(USBDevice *udev, USBPacket *p) +static void usbredir_handle_data(USBDevice *udev, USBPacket *p) { USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); uint8_t ep; @@ -622,28 +717,47 @@ static int usbredir_handle_data(USBDevice *udev, USBPacket *p) switch (dev->endpoint[EP2I(ep)].type) { case USB_ENDPOINT_XFER_CONTROL: ERROR("handle_data called for control transfer on ep %02X\n", ep); - return USB_RET_NAK; + p->status = USB_RET_NAK; + break; case USB_ENDPOINT_XFER_ISOC: - return usbredir_handle_iso_data(dev, p, ep); + usbredir_handle_iso_data(dev, p, ep); + break; case USB_ENDPOINT_XFER_BULK: - return usbredir_handle_bulk_data(dev, p, ep); + if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN && + p->ep->pipeline) { + p->status = USB_RET_ADD_TO_QUEUE; + break; + } + usbredir_handle_bulk_data(dev, p, ep); + break; case USB_ENDPOINT_XFER_INT: - return usbredir_handle_interrupt_data(dev, p, ep); + if (ep & USB_DIR_IN) { + usbredir_handle_interrupt_in_data(dev, p, ep); + } else { + usbredir_handle_interrupt_out_data(dev, p, ep); + } + break; default: ERROR("handle_data ep %02X has unknown type %d\n", ep, dev->endpoint[EP2I(ep)].type); - return USB_RET_NAK; + p->status = USB_RET_NAK; + } +} + +static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) +{ + if (ep->pid == USB_TOKEN_IN && ep->pipeline) { + usb_ep_combine_input_packets(ep); } } -static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, +static void usbredir_set_config(USBRedirDevice *dev, USBPacket *p, int config) { struct usb_redir_set_configuration_header set_config; - AsyncURB *aurb = async_alloc(dev, p); int i; - DPRINTF("set config %d id %u\n", config, aurb->packet_id); + DPRINTF("set config %d id %"PRIu64"\n", config, p->id); for (i = 0; i < MAX_ENDPOINTS; i++) { switch (dev->endpoint[i].type) { @@ -660,33 +774,27 @@ static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p, } set_config.configuration = config; - usbredirparser_send_set_configuration(dev->parser, aurb->packet_id, - &set_config); + usbredirparser_send_set_configuration(dev->parser, p->id, &set_config); usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } -static int usbredir_get_config(USBRedirDevice *dev, USBPacket *p) +static void usbredir_get_config(USBRedirDevice *dev, USBPacket *p) { - AsyncURB *aurb = async_alloc(dev, p); + DPRINTF("get config id %"PRIu64"\n", p->id); - DPRINTF("get config id %u\n", aurb->packet_id); - - aurb->get = 1; - usbredirparser_send_get_configuration(dev->parser, aurb->packet_id); + usbredirparser_send_get_configuration(dev->parser, p->id); usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } -static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, +static void usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, int interface, int alt) { struct usb_redir_set_alt_setting_header set_alt; - AsyncURB *aurb = async_alloc(dev, p); int i; - DPRINTF("set interface %d alt %d id %u\n", interface, alt, - aurb->packet_id); + DPRINTF("set interface %d alt %d id %"PRIu64"\n", interface, alt, p->id); for (i = 0; i < MAX_ENDPOINTS; i++) { if (dev->endpoint[i].interface == interface) { @@ -706,58 +814,59 @@ static int usbredir_set_interface(USBRedirDevice *dev, USBPacket *p, set_alt.interface = interface; set_alt.alt = alt; - usbredirparser_send_set_alt_setting(dev->parser, aurb->packet_id, - &set_alt); + usbredirparser_send_set_alt_setting(dev->parser, p->id, &set_alt); usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } -static int usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, +static void usbredir_get_interface(USBRedirDevice *dev, USBPacket *p, int interface) { struct usb_redir_get_alt_setting_header get_alt; - AsyncURB *aurb = async_alloc(dev, p); - DPRINTF("get interface %d id %u\n", interface, aurb->packet_id); + DPRINTF("get interface %d id %"PRIu64"\n", interface, p->id); get_alt.interface = interface; - aurb->get = 1; - usbredirparser_send_get_alt_setting(dev->parser, aurb->packet_id, - &get_alt); + usbredirparser_send_get_alt_setting(dev->parser, p->id, &get_alt); usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } -static int usbredir_handle_control(USBDevice *udev, USBPacket *p, +static void usbredir_handle_control(USBDevice *udev, USBPacket *p, int request, int value, int index, int length, uint8_t *data) { USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); struct usb_redir_control_packet_header control_packet; - AsyncURB *aurb; + + if (usbredir_already_in_flight(dev, p->id)) { + p->status = USB_RET_ASYNC; + return; + } /* Special cases for certain standard device requests */ switch (request) { case DeviceOutRequest | USB_REQ_SET_ADDRESS: DPRINTF("set address %d\n", value); dev->dev.addr = value; - return 0; + return; case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: - return usbredir_set_config(dev, p, value & 0xff); + usbredir_set_config(dev, p, value & 0xff); + return; case DeviceRequest | USB_REQ_GET_CONFIGURATION: - return usbredir_get_config(dev, p); + usbredir_get_config(dev, p); + return; case InterfaceOutRequest | USB_REQ_SET_INTERFACE: - return usbredir_set_interface(dev, p, index, value); + usbredir_set_interface(dev, p, index, value); + return; case InterfaceRequest | USB_REQ_GET_INTERFACE: - return usbredir_get_interface(dev, p, index); + usbredir_get_interface(dev, p, index); + return; } - /* "Normal" ctrl requests */ - aurb = async_alloc(dev, p); - - /* Note request is (bRequestType << 8) | bRequest */ - DPRINTF("ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %u\n", - request >> 8, request & 0xff, value, index, length, - aurb->packet_id); + /* Normal ctrl requests, note request is (bRequestType << 8) | bRequest */ + DPRINTF( + "ctrl-out type 0x%x req 0x%x val 0x%x index %d len %d id %"PRIu64"\n", + request >> 8, request & 0xff, value, index, length, p->id); control_packet.request = request & 0xFF; control_packet.requesttype = request >> 8; @@ -765,18 +874,17 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p, control_packet.value = value; control_packet.index = index; control_packet.length = length; - aurb->control_packet = control_packet; if (control_packet.requesttype & USB_DIR_IN) { - usbredirparser_send_control_packet(dev->parser, aurb->packet_id, + usbredirparser_send_control_packet(dev->parser, p->id, &control_packet, NULL, 0); } else { usbredir_log_data(dev, "ctrl data out:", data, length); - usbredirparser_send_control_packet(dev->parser, aurb->packet_id, + usbredirparser_send_control_packet(dev->parser, p->id, &control_packet, data, length); } usbredirparser_do_write(dev->parser); - return USB_RET_ASYNC; + p->status = USB_RET_ASYNC; } /* @@ -784,53 +892,70 @@ static int usbredir_handle_control(USBDevice *udev, USBPacket *p, * from within the USBDevice data / control packet callbacks and doing a * usb_detach from within these callbacks is not a good idea. * - * So we use a bh handler to take care of close events. We also handle - * open events from this callback to make sure that a close directly followed - * by an open gets handled in the right order. + * So we use a bh handler to take care of close events. */ -static void usbredir_open_close_bh(void *opaque) +static void usbredir_chardev_close_bh(void *opaque) { USBRedirDevice *dev = opaque; - uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, }; - char version[32]; - - strcpy(version, "qemu usb-redir guest "); - pstrcat(version, sizeof(version), qemu_get_version()); usbredir_device_disconnect(dev); if (dev->parser) { + DPRINTF("destroying usbredirparser\n"); usbredirparser_destroy(dev->parser); dev->parser = NULL; } +} - if (dev->cs->opened) { - dev->parser = qemu_oom_check(usbredirparser_create()); - dev->parser->priv = dev; - dev->parser->log_func = usbredir_log; - dev->parser->read_func = usbredir_read; - dev->parser->write_func = usbredir_write; - dev->parser->hello_func = usbredir_hello; - dev->parser->device_connect_func = usbredir_device_connect; - dev->parser->device_disconnect_func = usbredir_device_disconnect; - dev->parser->interface_info_func = usbredir_interface_info; - dev->parser->ep_info_func = usbredir_ep_info; - dev->parser->configuration_status_func = usbredir_configuration_status; - dev->parser->alt_setting_status_func = usbredir_alt_setting_status; - dev->parser->iso_stream_status_func = usbredir_iso_stream_status; - dev->parser->interrupt_receiving_status_func = - usbredir_interrupt_receiving_status; - dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; - dev->parser->control_packet_func = usbredir_control_packet; - dev->parser->bulk_packet_func = usbredir_bulk_packet; - dev->parser->iso_packet_func = usbredir_iso_packet; - dev->parser->interrupt_packet_func = usbredir_interrupt_packet; - dev->read_buf = NULL; - dev->read_buf_size = 0; +static void usbredir_create_parser(USBRedirDevice *dev) +{ + uint32_t caps[USB_REDIR_CAPS_SIZE] = { 0, }; + int flags = 0; + + DPRINTF("creating usbredirparser\n"); + + dev->parser = qemu_oom_check(usbredirparser_create()); + dev->parser->priv = dev; + dev->parser->log_func = usbredir_log; + dev->parser->read_func = usbredir_read; + dev->parser->write_func = usbredir_write; + dev->parser->hello_func = usbredir_hello; + dev->parser->device_connect_func = usbredir_device_connect; + dev->parser->device_disconnect_func = usbredir_device_disconnect; + dev->parser->interface_info_func = usbredir_interface_info; + dev->parser->ep_info_func = usbredir_ep_info; + dev->parser->configuration_status_func = usbredir_configuration_status; + dev->parser->alt_setting_status_func = usbredir_alt_setting_status; + dev->parser->iso_stream_status_func = usbredir_iso_stream_status; + dev->parser->interrupt_receiving_status_func = + usbredir_interrupt_receiving_status; + dev->parser->bulk_streams_status_func = usbredir_bulk_streams_status; + dev->parser->control_packet_func = usbredir_control_packet; + dev->parser->bulk_packet_func = usbredir_bulk_packet; + dev->parser->iso_packet_func = usbredir_iso_packet; + dev->parser->interrupt_packet_func = usbredir_interrupt_packet; + dev->read_buf = NULL; + dev->read_buf_size = 0; + + usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); + usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); + usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size); + usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids); + usbredirparser_caps_set_cap(caps, usb_redir_cap_32bits_bulk_length); + + if (runstate_check(RUN_STATE_INMIGRATE)) { + flags |= usbredirparser_fl_no_hello; + } + usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, + flags); + usbredirparser_do_write(dev->parser); +} - usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version); - usbredirparser_caps_set_cap(caps, usb_redir_cap_filter); - usbredirparser_init(dev->parser, version, caps, USB_REDIR_CAPS_SIZE, 0); +static void usbredir_reject_device(USBRedirDevice *dev) +{ + usbredir_device_disconnect(dev); + if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { + usbredirparser_send_filter_reject(dev->parser); usbredirparser_do_write(dev->parser); } } @@ -839,12 +964,20 @@ static void usbredir_do_attach(void *opaque) { USBRedirDevice *dev = opaque; + /* In order to work properly with XHCI controllers we need these caps */ + if ((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER) && !( + usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_ep_info_max_packet_size) && + usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_64bits_ids))) { + ERROR("usb-redir-host lacks capabilities needed for use with XHCI\n"); + usbredir_reject_device(dev); + return; + } + if (usb_device_attach(&dev->dev) != 0) { - usbredir_device_disconnect(dev); - if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { - usbredirparser_send_filter_reject(dev->parser); - usbredirparser_do_write(dev->parser); - } + WARNING("rejecting device due to speed mismatch\n"); + usbredir_reject_device(dev); } } @@ -856,13 +989,18 @@ static int usbredir_chardev_can_read(void *opaque) { USBRedirDevice *dev = opaque; - if (dev->parser) { - /* usbredir_parser_do_read will consume *all* data we give it */ - return 1024 * 1024; - } else { - /* usbredir_open_close_bh hasn't handled the open event yet */ + if (!dev->parser) { + WARNING("chardev_can_read called on non open chardev!\n"); + return 0; + } + + /* Don't read new data from the chardev until our state is fully synced */ + if (!runstate_check(RUN_STATE_RUNNING)) { return 0; } + + /* usbredir_parser_do_read will consume *all* data we give it */ + return 1024 * 1024; } static void usbredir_chardev_read(void *opaque, const uint8_t *buf, int size) @@ -886,8 +1024,15 @@ static void usbredir_chardev_event(void *opaque, int event) switch (event) { case CHR_EVENT_OPENED: + DPRINTF("chardev open\n"); + /* Make sure any pending closes are handled (no-op if none pending) */ + usbredir_chardev_close_bh(dev); + qemu_bh_cancel(dev->chardev_close_bh); + usbredir_create_parser(dev); + break; case CHR_EVENT_CLOSED: - qemu_bh_schedule(dev->open_close_bh); + DPRINTF("chardev close\n"); + qemu_bh_schedule(dev->chardev_close_bh); break; } } @@ -896,6 +1041,15 @@ static void usbredir_chardev_event(void *opaque, int event) * init + destroy */ +static void usbredir_vm_state_change(void *priv, int running, RunState state) +{ + USBRedirDevice *dev = priv; + + if (state == RUN_STATE_RUNNING && dev->parser != NULL) { + usbredirparser_do_write(dev->parser); /* Flush any pending writes */ + } +} + static int usbredir_initfn(USBDevice *udev) { USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev); @@ -917,10 +1071,11 @@ static int usbredir_initfn(USBDevice *udev) } } - dev->open_close_bh = qemu_bh_new(usbredir_open_close_bh, dev); + dev->chardev_close_bh = qemu_bh_new(usbredir_chardev_close_bh, dev); dev->attach_timer = qemu_new_timer_ms(vm_clock, usbredir_do_attach, dev); - QTAILQ_INIT(&dev->asyncq); + packet_id_queue_init(&dev->cancelled, dev, "cancelled"); + packet_id_queue_init(&dev->already_in_flight, dev, "already-in-flight"); for (i = 0; i < MAX_ENDPOINTS; i++) { QTAILQ_INIT(&dev->endpoint[i].bufpq); } @@ -928,23 +1083,25 @@ static int usbredir_initfn(USBDevice *udev) /* We'll do the attach once we receive the speed from the usb-host */ udev->auto_attach = 0; + /* Will be cleared during setup when we find conflicts */ + dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; + /* Let the backend know we are ready */ qemu_chr_fe_open(dev->cs); qemu_chr_add_handlers(dev->cs, usbredir_chardev_can_read, usbredir_chardev_read, usbredir_chardev_event, dev); + qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); add_boot_device_path(dev->bootindex, &udev->qdev, NULL); return 0; } static void usbredir_cleanup_device_queues(USBRedirDevice *dev) { - AsyncURB *aurb, *next_aurb; int i; - QTAILQ_FOREACH_SAFE(aurb, &dev->asyncq, next, next_aurb) { - async_free(dev, aurb); - } + packet_id_queue_empty(&dev->cancelled); + packet_id_queue_empty(&dev->already_in_flight); for (i = 0; i < MAX_ENDPOINTS; i++) { usbredir_free_bufpq(dev, I2EP(i)); } @@ -957,7 +1114,7 @@ static void usbredir_handle_destroy(USBDevice *udev) qemu_chr_fe_close(dev->cs); qemu_chr_delete(dev->cs); /* Note must be done after qemu_chr_close, as that causes a close event */ - qemu_bh_delete(dev->open_close_bh); + qemu_bh_delete(dev->chardev_close_bh); qemu_del_timer(dev->attach_timer); qemu_free_timer(dev->attach_timer); @@ -1007,11 +1164,7 @@ static int usbredir_check_filter(USBRedirDevice *dev) return 0; error: - usbredir_device_disconnect(dev); - if (usbredirparser_peer_has_cap(dev->parser, usb_redir_cap_filter)) { - usbredirparser_send_filter_reject(dev->parser); - usbredirparser_do_write(dev->parser); - } + usbredir_reject_device(dev); return -1; } @@ -1019,26 +1172,34 @@ error: * usbredirparser packet complete callbacks */ -static int usbredir_handle_status(USBRedirDevice *dev, - int status, int actual_len) +static void usbredir_handle_status(USBRedirDevice *dev, USBPacket *p, + int status) { switch (status) { case usb_redir_success: - return actual_len; + p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ + break; case usb_redir_stall: - return USB_RET_STALL; + p->status = USB_RET_STALL; + break; case usb_redir_cancelled: - WARNING("returning cancelled packet to HC?\n"); - return USB_RET_NAK; + /* + * When the usbredir-host unredirects a device, it will report a status + * of cancelled for all pending packets, followed by a disconnect msg. + */ + p->status = USB_RET_IOERROR; + break; case usb_redir_inval: WARNING("got invalid param error from usb-host?\n"); - return USB_RET_NAK; + p->status = USB_RET_IOERROR; + break; case usb_redir_babble: - return USB_RET_BABBLE; + p->status = USB_RET_BABBLE; + break; case usb_redir_ioerror: case usb_redir_timeout: default: - return USB_RET_IOERROR; + p->status = USB_RET_IOERROR; } } @@ -1070,10 +1231,13 @@ static void usbredir_device_connect(void *priv, case usb_redir_speed_low: speed = "low speed"; dev->dev.speed = USB_SPEED_LOW; + dev->compatible_speedmask &= ~USB_SPEED_MASK_FULL; + dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; break; case usb_redir_speed_full: speed = "full speed"; dev->dev.speed = USB_SPEED_FULL; + dev->compatible_speedmask &= ~USB_SPEED_MASK_HIGH; break; case usb_redir_speed_high: speed = "high speed"; @@ -1103,7 +1267,7 @@ static void usbredir_device_connect(void *priv, device_connect->device_class); } - dev->dev.speedmask = (1 << dev->dev.speed); + dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; dev->device_info = *device_connect; if (usbredir_check_filter(dev)) { @@ -1124,6 +1288,7 @@ static void usbredir_device_disconnect(void *priv) qemu_del_timer(dev->attach_timer); if (dev->dev.attached) { + DPRINTF("detaching device\n"); usb_device_detach(&dev->dev); /* * Delay next usb device attach to give the guest a chance to see @@ -1142,6 +1307,7 @@ static void usbredir_device_disconnect(void *priv) dev->interface_info.interface_count = NO_INTERFACE_INFO; dev->dev.addr = 0; dev->dev.speed = 0; + dev->compatible_speedmask = USB_SPEED_MASK_FULL | USB_SPEED_MASK_HIGH; } static void usbredir_interface_info(void *priv, @@ -1163,25 +1329,78 @@ static void usbredir_interface_info(void *priv, } } +static void usbredir_mark_speed_incompatible(USBRedirDevice *dev, int speed) +{ + dev->compatible_speedmask &= ~(1 << speed); + dev->dev.speedmask = (1 << dev->dev.speed) | dev->compatible_speedmask; +} + +static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep) +{ + if (uep->type != USB_ENDPOINT_XFER_BULK) { + return; + } + if (uep->pid == USB_TOKEN_OUT) { + uep->pipeline = true; + } + if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 && + usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_32bits_bulk_length)) { + uep->pipeline = true; + } +} + +static void usbredir_setup_usb_eps(USBRedirDevice *dev) +{ + struct USBEndpoint *usb_ep; + int i, pid; + + for (i = 0; i < MAX_ENDPOINTS; i++) { + pid = (i & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT; + usb_ep = usb_ep_get(&dev->dev, pid, i & 0x0f); + usb_ep->type = dev->endpoint[i].type; + usb_ep->ifnum = dev->endpoint[i].interface; + usb_ep->max_packet_size = dev->endpoint[i].max_packet_size; + usbredir_set_pipeline(dev, usb_ep); + } +} + static void usbredir_ep_info(void *priv, struct usb_redir_ep_info_header *ep_info) { USBRedirDevice *dev = priv; - struct USBEndpoint *usb_ep; int i; for (i = 0; i < MAX_ENDPOINTS; i++) { dev->endpoint[i].type = ep_info->type[i]; dev->endpoint[i].interval = ep_info->interval[i]; dev->endpoint[i].interface = ep_info->interface[i]; + if (usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_ep_info_max_packet_size)) { + dev->endpoint[i].max_packet_size = ep_info->max_packet_size[i]; + } switch (dev->endpoint[i].type) { case usb_redir_type_invalid: break; case usb_redir_type_iso: + usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); + usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); + /* Fall through */ case usb_redir_type_interrupt: + if (!usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_ep_info_max_packet_size) || + ep_info->max_packet_size[i] > 64) { + usbredir_mark_speed_incompatible(dev, USB_SPEED_FULL); + } + if (!usbredirparser_peer_has_cap(dev->parser, + usb_redir_cap_ep_info_max_packet_size) || + ep_info->max_packet_size[i] > 1024) { + usbredir_mark_speed_incompatible(dev, USB_SPEED_HIGH); + } if (dev->endpoint[i].interval == 0) { ERROR("Received 0 interval for isoc or irq endpoint\n"); - usbredir_device_disconnect(dev); + usbredir_reject_device(dev); + return; } /* Fall through */ case usb_redir_type_control: @@ -1191,78 +1410,69 @@ static void usbredir_ep_info(void *priv, break; default: ERROR("Received invalid endpoint type\n"); - usbredir_device_disconnect(dev); + usbredir_reject_device(dev); return; } - usb_ep = usb_ep_get(&dev->dev, - (i & 0x10) ? USB_TOKEN_IN : USB_TOKEN_OUT, - i & 0x0f); - usb_ep->type = dev->endpoint[i].type; - usb_ep->ifnum = dev->endpoint[i].interface; } + /* The new ep info may have caused a speed incompatibility, recheck */ + if (dev->dev.attached && + !(dev->dev.port->speedmask & dev->dev.speedmask)) { + ERROR("Device no longer matches speed after endpoint info change, " + "disconnecting!\n"); + usbredir_reject_device(dev); + return; + } + usbredir_setup_usb_eps(dev); } -static void usbredir_configuration_status(void *priv, uint32_t id, +static void usbredir_configuration_status(void *priv, uint64_t id, struct usb_redir_configuration_status_header *config_status) { USBRedirDevice *dev = priv; - AsyncURB *aurb; - int len = 0; + USBPacket *p; - DPRINTF("set config status %d config %d id %u\n", config_status->status, - config_status->configuration, id); + DPRINTF("set config status %d config %d id %"PRIu64"\n", + config_status->status, config_status->configuration, id); - aurb = async_find(dev, id); - if (!aurb) { - return; - } - if (aurb->packet) { - if (aurb->get) { + p = usbredir_find_packet_by_id(dev, 0, id); + if (p) { + if (dev->dev.setup_buf[0] & USB_DIR_IN) { dev->dev.data_buf[0] = config_status->configuration; - len = 1; + p->actual_length = 1; } - aurb->packet->result = - usbredir_handle_status(dev, config_status->status, len); - usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); + usbredir_handle_status(dev, p, config_status->status); + usb_generic_async_ctrl_complete(&dev->dev, p); } - async_free(dev, aurb); } -static void usbredir_alt_setting_status(void *priv, uint32_t id, +static void usbredir_alt_setting_status(void *priv, uint64_t id, struct usb_redir_alt_setting_status_header *alt_setting_status) { USBRedirDevice *dev = priv; - AsyncURB *aurb; - int len = 0; + USBPacket *p; - DPRINTF("alt status %d intf %d alt %d id: %u\n", - alt_setting_status->status, - alt_setting_status->interface, + DPRINTF("alt status %d intf %d alt %d id: %"PRIu64"\n", + alt_setting_status->status, alt_setting_status->interface, alt_setting_status->alt, id); - aurb = async_find(dev, id); - if (!aurb) { - return; - } - if (aurb->packet) { - if (aurb->get) { + p = usbredir_find_packet_by_id(dev, 0, id); + if (p) { + if (dev->dev.setup_buf[0] & USB_DIR_IN) { dev->dev.data_buf[0] = alt_setting_status->alt; - len = 1; + p->actual_length = 1; } - aurb->packet->result = - usbredir_handle_status(dev, alt_setting_status->status, len); - usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); + usbredir_handle_status(dev, p, alt_setting_status->status); + usb_generic_async_ctrl_complete(&dev->dev, p); } - async_free(dev, aurb); } -static void usbredir_iso_stream_status(void *priv, uint32_t id, +static void usbredir_iso_stream_status(void *priv, uint64_t id, struct usb_redir_iso_stream_status_header *iso_stream_status) { USBRedirDevice *dev = priv; uint8_t ep = iso_stream_status->endpoint; - DPRINTF("iso status %d ep %02X id %u\n", iso_stream_status->status, + DPRINTF("iso status %d ep %02X id %"PRIu64"\n", iso_stream_status->status, ep, id); if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].iso_started) { @@ -1276,14 +1486,14 @@ static void usbredir_iso_stream_status(void *priv, uint32_t id, } } -static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, +static void usbredir_interrupt_receiving_status(void *priv, uint64_t id, struct usb_redir_interrupt_receiving_status_header *interrupt_receiving_status) { USBRedirDevice *dev = priv; uint8_t ep = interrupt_receiving_status->endpoint; - DPRINTF("interrupt recv status %d ep %02X id %u\n", + DPRINTF("interrupt recv status %d ep %02X id %"PRIu64"\n", interrupt_receiving_status->status, ep, id); if (!dev->dev.attached || !dev->endpoint[EP2I(ep)].interrupt_started) { @@ -1298,107 +1508,102 @@ static void usbredir_interrupt_receiving_status(void *priv, uint32_t id, } } -static void usbredir_bulk_streams_status(void *priv, uint32_t id, +static void usbredir_bulk_streams_status(void *priv, uint64_t id, struct usb_redir_bulk_streams_status_header *bulk_streams_status) { } -static void usbredir_control_packet(void *priv, uint32_t id, +static void usbredir_control_packet(void *priv, uint64_t id, struct usb_redir_control_packet_header *control_packet, uint8_t *data, int data_len) { USBRedirDevice *dev = priv; + USBPacket *p; int len = control_packet->length; - AsyncURB *aurb; - DPRINTF("ctrl-in status %d len %d id %u\n", control_packet->status, + DPRINTF("ctrl-in status %d len %d id %"PRIu64"\n", control_packet->status, len, id); - aurb = async_find(dev, id); - if (!aurb) { - free(data); - return; - } - - aurb->control_packet.status = control_packet->status; - aurb->control_packet.length = control_packet->length; - if (memcmp(&aurb->control_packet, control_packet, - sizeof(*control_packet))) { - ERROR("return control packet mismatch, please report this!\n"); - len = USB_RET_NAK; - } - - if (aurb->packet) { - len = usbredir_handle_status(dev, control_packet->status, len); - if (len > 0) { + /* Fix up USB-3 ep0 maxpacket size to allow superspeed connected devices + * to work redirected to a not superspeed capable hcd */ + if (dev->dev.speed == USB_SPEED_SUPER && + !((dev->dev.port->speedmask & USB_SPEED_MASK_SUPER)) && + control_packet->requesttype == 0x80 && + control_packet->request == 6 && + control_packet->value == 0x100 && control_packet->index == 0 && + data_len >= 18 && data[7] == 9) { + data[7] = 64; + } + + p = usbredir_find_packet_by_id(dev, 0, id); + if (p) { + usbredir_handle_status(dev, p, control_packet->status); + if (data_len > 0) { usbredir_log_data(dev, "ctrl data in:", data, data_len); - if (data_len <= sizeof(dev->dev.data_buf)) { - memcpy(dev->dev.data_buf, data, data_len); - } else { + if (data_len > sizeof(dev->dev.data_buf)) { ERROR("ctrl buffer too small (%d > %zu)\n", data_len, sizeof(dev->dev.data_buf)); - len = USB_RET_STALL; + p->status = USB_RET_STALL; + data_len = len = sizeof(dev->dev.data_buf); } + memcpy(dev->dev.data_buf, data, data_len); } - aurb->packet->result = len; - usb_generic_async_ctrl_complete(&dev->dev, aurb->packet); + p->actual_length = len; + usb_generic_async_ctrl_complete(&dev->dev, p); } - async_free(dev, aurb); free(data); } -static void usbredir_bulk_packet(void *priv, uint32_t id, +static void usbredir_bulk_packet(void *priv, uint64_t id, struct usb_redir_bulk_packet_header *bulk_packet, uint8_t *data, int data_len) { USBRedirDevice *dev = priv; uint8_t ep = bulk_packet->endpoint; - int len = bulk_packet->length; - AsyncURB *aurb; - - 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; - } + int len = (bulk_packet->length_high << 16) | bulk_packet->length; + USBPacket *p; - if (aurb->bulk_packet.endpoint != bulk_packet->endpoint || - aurb->bulk_packet.stream_id != bulk_packet->stream_id) { - ERROR("return bulk packet mismatch, please report this!\n"); - len = USB_RET_NAK; - } + DPRINTF("bulk-in status %d ep %02X len %d id %"PRIu64"\n", + bulk_packet->status, ep, len, id); - if (aurb->packet) { - len = usbredir_handle_status(dev, bulk_packet->status, len); - if (len > 0) { + p = usbredir_find_packet_by_id(dev, ep, id); + if (p) { + size_t size = (p->combined) ? p->combined->iov.size : p->iov.size; + usbredir_handle_status(dev, p, bulk_packet->status); + if (data_len > 0) { usbredir_log_data(dev, "bulk data in:", data, data_len); - if (data_len <= aurb->packet->iov.size) { - usb_packet_copy(aurb->packet, data, data_len); + if (data_len > size) { + ERROR("bulk got more data then requested (%d > %zd)\n", + data_len, p->iov.size); + p->status = USB_RET_BABBLE; + data_len = len = size; + } + if (p->combined) { + iov_from_buf(p->combined->iov.iov, p->combined->iov.niov, + 0, data, data_len); } else { - ERROR("bulk buffer too small (%d > %zd)\n", data_len, - aurb->packet->iov.size); - len = USB_RET_STALL; + usb_packet_copy(p, data, data_len); } } - aurb->packet->result = len; - usb_packet_complete(&dev->dev, aurb->packet); + p->actual_length = len; + if (p->pid == USB_TOKEN_IN && p->ep->pipeline) { + usb_combined_input_packet_complete(&dev->dev, p); + } else { + usb_packet_complete(&dev->dev, p); + } } - async_free(dev, aurb); free(data); } -static void usbredir_iso_packet(void *priv, uint32_t id, +static void usbredir_iso_packet(void *priv, uint64_t id, struct usb_redir_iso_packet_header *iso_packet, uint8_t *data, int data_len) { USBRedirDevice *dev = priv; uint8_t ep = iso_packet->endpoint; - DPRINTF2("iso-in status %d ep %02X len %d id %u\n", iso_packet->status, ep, - data_len, id); + DPRINTF2("iso-in status %d ep %02X len %d id %"PRIu64"\n", + iso_packet->status, ep, data_len, id); if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_ISOC) { ERROR("received iso packet for non iso endpoint %02X\n", ep); @@ -1416,14 +1621,14 @@ static void usbredir_iso_packet(void *priv, uint32_t id, bufp_alloc(dev, data, data_len, iso_packet->status, ep); } -static void usbredir_interrupt_packet(void *priv, uint32_t id, +static void usbredir_interrupt_packet(void *priv, uint64_t id, struct usb_redir_interrupt_packet_header *interrupt_packet, uint8_t *data, int data_len) { USBRedirDevice *dev = priv; uint8_t ep = interrupt_packet->endpoint; - DPRINTF("interrupt-in status %d ep %02X len %d id %u\n", + DPRINTF("interrupt-in status %d ep %02X len %d id %"PRIu64"\n", interrupt_packet->status, ep, data_len, id); if (dev->endpoint[EP2I(ep)].type != USB_ENDPOINT_XFER_INT) { @@ -1442,30 +1647,330 @@ static void usbredir_interrupt_packet(void *priv, uint32_t id, /* bufp_alloc also adds the packet to the ep queue */ bufp_alloc(dev, data, data_len, interrupt_packet->status, ep); } else { - int len = interrupt_packet->length; - - AsyncURB *aurb = async_find(dev, id); - if (!aurb) { - return; + /* + * We report output interrupt packets as completed directly upon + * submission, so all we can do here if one failed is warn. + */ + if (interrupt_packet->status) { + WARNING("interrupt output failed status %d ep %02X id %"PRIu64"\n", + interrupt_packet->status, ep, id); } + } +} - if (aurb->interrupt_packet.endpoint != interrupt_packet->endpoint) { - ERROR("return int packet mismatch, please report this!\n"); - len = USB_RET_NAK; - } +/* + * Migration code + */ - if (aurb->packet) { - aurb->packet->result = usbredir_handle_status(dev, - interrupt_packet->status, len); - usb_packet_complete(&dev->dev, aurb->packet); - } - async_free(dev, aurb); +static void usbredir_pre_save(void *priv) +{ + USBRedirDevice *dev = priv; + + usbredir_fill_already_in_flight(dev); +} + +static int usbredir_post_load(void *priv, int version_id) +{ + USBRedirDevice *dev = priv; + + switch (dev->device_info.speed) { + case usb_redir_speed_low: + dev->dev.speed = USB_SPEED_LOW; + break; + case usb_redir_speed_full: + dev->dev.speed = USB_SPEED_FULL; + break; + case usb_redir_speed_high: + dev->dev.speed = USB_SPEED_HIGH; + break; + case usb_redir_speed_super: + dev->dev.speed = USB_SPEED_SUPER; + break; + default: + dev->dev.speed = USB_SPEED_FULL; + } + dev->dev.speedmask = (1 << dev->dev.speed); + + usbredir_setup_usb_eps(dev); + + return 0; +} + +/* For usbredirparser migration */ +static void usbredir_put_parser(QEMUFile *f, void *priv, size_t unused) +{ + USBRedirDevice *dev = priv; + uint8_t *data; + int len; + + if (dev->parser == NULL) { + qemu_put_be32(f, 0); + return; + } + + usbredirparser_serialize(dev->parser, &data, &len); + qemu_oom_check(data); + + qemu_put_be32(f, len); + qemu_put_buffer(f, data, len); + + free(data); +} + +static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused) +{ + USBRedirDevice *dev = priv; + uint8_t *data; + int len, ret; + + len = qemu_get_be32(f); + if (len == 0) { + return 0; + } + + /* + * If our chardev is not open already at this point the usbredir connection + * has been broken (non seamless migration, or restore from disk). + * + * In this case create a temporary parser to receive the migration data, + * and schedule the close_bh to report the device as disconnected to the + * guest and to destroy the parser again. + */ + if (dev->parser == NULL) { + WARNING("usb-redir connection broken during migration\n"); + usbredir_create_parser(dev); + qemu_bh_schedule(dev->chardev_close_bh); + } + + data = g_malloc(len); + qemu_get_buffer(f, data, len); + + ret = usbredirparser_unserialize(dev->parser, data, len); + + g_free(data); + + return ret; +} + +static const VMStateInfo usbredir_parser_vmstate_info = { + .name = "usb-redir-parser", + .put = usbredir_put_parser, + .get = usbredir_get_parser, +}; + + +/* For buffered packets (iso/irq) queue migration */ +static void usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused) +{ + struct endp_data *endp = priv; + struct buf_packet *bufp; + int remain = endp->bufpq_size; + + qemu_put_be32(f, endp->bufpq_size); + QTAILQ_FOREACH(bufp, &endp->bufpq, next) { + qemu_put_be32(f, bufp->len); + qemu_put_be32(f, bufp->status); + qemu_put_buffer(f, bufp->data, bufp->len); + remain--; + } + assert(remain == 0); +} + +static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused) +{ + struct endp_data *endp = priv; + struct buf_packet *bufp; + int i; + + endp->bufpq_size = qemu_get_be32(f); + for (i = 0; i < endp->bufpq_size; i++) { + bufp = g_malloc(sizeof(struct buf_packet)); + bufp->len = qemu_get_be32(f); + bufp->status = qemu_get_be32(f); + bufp->data = qemu_oom_check(malloc(bufp->len)); /* regular malloc! */ + qemu_get_buffer(f, bufp->data, bufp->len); + QTAILQ_INSERT_TAIL(&endp->bufpq, bufp, next); + } + return 0; +} + +static const VMStateInfo usbredir_ep_bufpq_vmstate_info = { + .name = "usb-redir-bufpq", + .put = usbredir_put_bufpq, + .get = usbredir_get_bufpq, +}; + + +/* For endp_data migration */ +static const VMStateDescription usbredir_ep_vmstate = { + .name = "usb-redir-ep", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT8(type, struct endp_data), + VMSTATE_UINT8(interval, struct endp_data), + VMSTATE_UINT8(interface, struct endp_data), + VMSTATE_UINT16(max_packet_size, struct endp_data), + VMSTATE_UINT8(iso_started, struct endp_data), + VMSTATE_UINT8(iso_error, struct endp_data), + VMSTATE_UINT8(interrupt_started, struct endp_data), + VMSTATE_UINT8(interrupt_error, struct endp_data), + VMSTATE_UINT8(bufpq_prefilled, struct endp_data), + VMSTATE_UINT8(bufpq_dropping_packets, struct endp_data), + { + .name = "bufpq", + .version_id = 0, + .field_exists = NULL, + .size = 0, + .info = &usbredir_ep_bufpq_vmstate_info, + .flags = VMS_SINGLE, + .offset = 0, + }, + VMSTATE_INT32(bufpq_target_size, struct endp_data), + VMSTATE_END_OF_LIST() } +}; + + +/* For PacketIdQueue migration */ +static void usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused) +{ + struct PacketIdQueue *q = priv; + USBRedirDevice *dev = q->dev; + struct PacketIdQueueEntry *e; + int remain = q->size; + + DPRINTF("put_packet_id_q %s size %d\n", q->name, q->size); + qemu_put_be32(f, q->size); + QTAILQ_FOREACH(e, &q->head, next) { + qemu_put_be64(f, e->id); + remain--; + } + assert(remain == 0); +} + +static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused) +{ + struct PacketIdQueue *q = priv; + USBRedirDevice *dev = q->dev; + int i, size; + uint64_t id; + + size = qemu_get_be32(f); + DPRINTF("get_packet_id_q %s size %d\n", q->name, size); + for (i = 0; i < size; i++) { + id = qemu_get_be64(f); + packet_id_queue_add(q, id); + } + assert(q->size == size); + return 0; } +static const VMStateInfo usbredir_ep_packet_id_q_vmstate_info = { + .name = "usb-redir-packet-id-q", + .put = usbredir_put_packet_id_q, + .get = usbredir_get_packet_id_q, +}; + +static const VMStateDescription usbredir_ep_packet_id_queue_vmstate = { + .name = "usb-redir-packet-id-queue", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + { + .name = "queue", + .version_id = 0, + .field_exists = NULL, + .size = 0, + .info = &usbredir_ep_packet_id_q_vmstate_info, + .flags = VMS_SINGLE, + .offset = 0, + }, + VMSTATE_END_OF_LIST() + } +}; + + +/* For usb_redir_device_connect_header migration */ +static const VMStateDescription usbredir_device_info_vmstate = { + .name = "usb-redir-device-info", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT8(speed, struct usb_redir_device_connect_header), + VMSTATE_UINT8(device_class, struct usb_redir_device_connect_header), + VMSTATE_UINT8(device_subclass, struct usb_redir_device_connect_header), + VMSTATE_UINT8(device_protocol, struct usb_redir_device_connect_header), + VMSTATE_UINT16(vendor_id, struct usb_redir_device_connect_header), + VMSTATE_UINT16(product_id, struct usb_redir_device_connect_header), + VMSTATE_UINT16(device_version_bcd, + struct usb_redir_device_connect_header), + VMSTATE_END_OF_LIST() + } +}; + + +/* For usb_redir_interface_info_header migration */ +static const VMStateDescription usbredir_interface_info_vmstate = { + .name = "usb-redir-interface-info", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(interface_count, + struct usb_redir_interface_info_header), + VMSTATE_UINT8_ARRAY(interface, + struct usb_redir_interface_info_header, 32), + VMSTATE_UINT8_ARRAY(interface_class, + struct usb_redir_interface_info_header, 32), + VMSTATE_UINT8_ARRAY(interface_subclass, + struct usb_redir_interface_info_header, 32), + VMSTATE_UINT8_ARRAY(interface_protocol, + struct usb_redir_interface_info_header, 32), + VMSTATE_END_OF_LIST() + } +}; + + +/* And finally the USBRedirDevice vmstate itself */ +static const VMStateDescription usbredir_vmstate = { + .name = "usb-redir", + .version_id = 1, + .minimum_version_id = 1, + .pre_save = usbredir_pre_save, + .post_load = usbredir_post_load, + .fields = (VMStateField[]) { + VMSTATE_USB_DEVICE(dev, USBRedirDevice), + VMSTATE_TIMER(attach_timer, USBRedirDevice), + { + .name = "parser", + .version_id = 0, + .field_exists = NULL, + .size = 0, + .info = &usbredir_parser_vmstate_info, + .flags = VMS_SINGLE, + .offset = 0, + }, + VMSTATE_STRUCT_ARRAY(endpoint, USBRedirDevice, MAX_ENDPOINTS, 1, + usbredir_ep_vmstate, struct endp_data), + VMSTATE_STRUCT(cancelled, USBRedirDevice, 1, + usbredir_ep_packet_id_queue_vmstate, + struct PacketIdQueue), + VMSTATE_STRUCT(already_in_flight, USBRedirDevice, 1, + usbredir_ep_packet_id_queue_vmstate, + struct PacketIdQueue), + VMSTATE_STRUCT(device_info, USBRedirDevice, 1, + usbredir_device_info_vmstate, + struct usb_redir_device_connect_header), + VMSTATE_STRUCT(interface_info, USBRedirDevice, 1, + usbredir_interface_info_vmstate, + struct usb_redir_interface_info_header), + VMSTATE_END_OF_LIST() + } +}; + static Property usbredir_properties[] = { DEFINE_PROP_CHR("chardev", USBRedirDevice, cs), - DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, 0), + DEFINE_PROP_UINT8("debug", USBRedirDevice, debug, usbredirparser_warning), DEFINE_PROP_STRING("filter", USBRedirDevice, filter_str), DEFINE_PROP_INT32("bootindex", USBRedirDevice, bootindex, -1), DEFINE_PROP_END_OF_LIST(), @@ -1483,6 +1988,8 @@ static void usbredir_class_initfn(ObjectClass *klass, void *data) uc->handle_reset = usbredir_handle_reset; uc->handle_data = usbredir_handle_data; uc->handle_control = usbredir_handle_control; + uc->flush_ep_queue = usbredir_flush_ep_queue; + dc->vmsd = &usbredir_vmstate; dc->props = usbredir_properties; } |