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usb: add pcap support.

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Log all traffic of a specific usb device to a pcap file for later
inspection.  File format is compatible with linux usb monitor.

Usage:
  qemu -device usb-${somedevice},pcap=file.pcap
  wireshark file.pcap

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210119194452.2148048-1-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
2021-01-19 20:44:51 +01:00
parent d755cb9696
commit 0f6dba145a
5 changed files with 293 additions and 0 deletions
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8
include/hw/usb.h
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@@ -231,6 +231,9 @@ struct USBDevice {
void *opaque;
uint32_t flags;
char *pcap_filename;
FILE *pcap;
/* Actual connected speed */
int speed;
/* Supported speeds, not in info because it may be variable (hostdevs) */
@@ -570,4 +573,9 @@ int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
uint8_t interface_class, uint8_t interface_subclass,
uint8_t interface_protocol);
/* pcap.c */
void usb_pcap_init(FILE *fp);
void usb_pcap_ctrl(USBPacket *p, bool setup);
void usb_pcap_data(USBPacket *p, bool setup);
#endif