Edit File: usb.h
/* * Copyright (c) 2006 Paolo Abeni (Italy) * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Basic USB data struct * By Paolo Abeni <paolo.abeni@email.it> */ #ifndef lib_pcap_usb_h #define lib_pcap_usb_h #include <pcap/pcap-inttypes.h> /* * possible transfer mode */ #define URB_TRANSFER_IN 0x80 #define URB_ISOCHRONOUS 0x0 #define URB_INTERRUPT 0x1 #define URB_CONTROL 0x2 #define URB_BULK 0x3 /* * possible event type */ #define URB_SUBMIT 'S' #define URB_COMPLETE 'C' #define URB_ERROR 'E' /* * USB setup header as defined in USB specification. * Appears at the front of each Control S-type packet in DLT_USB captures. */ typedef struct _usb_setup { uint8_t bmRequestType; uint8_t bRequest; uint16_t wValue; uint16_t wIndex; uint16_t wLength; } pcap_usb_setup; /* * Information from the URB for Isochronous transfers. */ typedef struct _iso_rec { int32_t error_count; int32_t numdesc; } iso_rec; /* * Header prepended by linux kernel to each event. * Appears at the front of each packet in DLT_USB_LINUX captures. */ typedef struct _usb_header { uint64_t id; uint8_t event_type; uint8_t transfer_type; uint8_t endpoint_number; uint8_t device_address; uint16_t bus_id; char setup_flag;/*if !=0 the urb setup header is not present*/ char data_flag; /*if !=0 no urb data is present*/ int64_t ts_sec; int32_t ts_usec; int32_t status; uint32_t urb_len; uint32_t data_len; /* amount of urb data really present in this event*/ pcap_usb_setup setup; } pcap_usb_header; /* * Header prepended by linux kernel to each event for the 2.6.31 * and later kernels; for the 2.6.21 through 2.6.30 kernels, the * "iso_rec" information, and the fields starting with "interval" * are zeroed-out padding fields. * * Appears at the front of each packet in DLT_USB_LINUX_MMAPPED captures. */ typedef struct _usb_header_mmapped { uint64_t id; uint8_t event_type; uint8_t transfer_type; uint8_t endpoint_number; uint8_t device_address; uint16_t bus_id; char setup_flag;/*if !=0 the urb setup header is not present*/ char data_flag; /*if !=0 no urb data is present*/ int64_t ts_sec; int32_t ts_usec; int32_t status; uint32_t urb_len; uint32_t data_len; /* amount of urb data really present in this event*/ union { pcap_usb_setup setup; iso_rec iso; } s; int32_t interval; /* for Interrupt and Isochronous events */ int32_t start_frame; /* for Isochronous events */ uint32_t xfer_flags; /* copy of URB's transfer flags */ uint32_t ndesc; /* number of isochronous descriptors */ } pcap_usb_header_mmapped; /* * Isochronous descriptors; for isochronous transfers there might be * one or more of these at the beginning of the packet data. The * number of descriptors is given by the "ndesc" field in the header; * as indicated, in older kernels that don't put the descriptors at * the beginning of the packet, that field is zeroed out, so that field * can be trusted even in captures from older kernels. */ typedef struct _usb_isodesc { int32_t status; uint32_t offset; uint32_t len; uint8_t pad[4]; } usb_isodesc; #endif
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