*
* $Id$
*
- * usb basic dissector
- * By Paolo Abeni <paolo.abeni@email.com>
+ * USB basic dissector
+ * By Paolo Abeni <paolo.abeni@email.it>
+ * Ronnie Sahlberg 2006
+ *
+ * http://www.usb.org/developers/docs/usb_20_122909-2.zip
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-
+
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
+#include <ctype.h>
+#include "isprint.h"
+
#include <glib.h>
#include <epan/packet.h>
-#include <epan/prefs.h>
#include <epan/etypes.h>
#include <epan/addr_resolv.h>
#include <epan/emem.h>
+#include <epan/tap.h>
#include <epan/conversation.h>
-#include <string.h>
+#include <epan/expert.h>
+#include <epan/prefs.h>
+#include "packet-usb.h"
+#include "packet-usb-hid.h"
/* protocols and header fields */
static int proto_usb = -1;
+
+/* Linux USB pseudoheader fields */
+static int hf_usb_urb_id = -1;
static int hf_usb_urb_type = -1;
-static int hf_usb_device_address = -1;
+static int hf_usb_transfer_type = -1;
static int hf_usb_endpoint_number = -1;
-static int hf_usb_src_endpoint_number = -1;
-static int hf_usb_dst_endpoint_number = -1;
+static int hf_usb_endpoint_direction = -1;
+static int hf_usb_endpoint_number_value = -1;
+static int hf_usb_device_address = -1;
+static int hf_usb_bus_id = -1;
+static int hf_usb_setup_flag = -1;
+static int hf_usb_data_flag = -1;
+static int hf_usb_urb_ts_sec = -1;
+static int hf_usb_urb_ts_usec = -1;
+static int hf_usb_urb_status = -1;
+static int hf_usb_urb_len = -1;
+static int hf_usb_data_len = -1;
+
static int hf_usb_request = -1;
+static int hf_usb_request_unknown_class = -1;
static int hf_usb_value = -1;
static int hf_usb_index = -1;
static int hf_usb_length = -1;
static int hf_usb_data = -1;
-static int hf_usb_setup_bmRequestType = -1;
-static int hf_usb_setup_bmRequestType_direction = -1;
-static int hf_usb_setup_bmRequestType_type = -1;
-static int hf_usb_setup_bmRequestType_recipient = -1;
-static int hf_usb_descriptor_type = -1;
+static int hf_usb_capdata = -1;
+static int hf_usb_wFeatureSelector = -1;
+static int hf_usb_wInterface = -1;
+static int hf_usb_wStatus = -1;
+static int hf_usb_wFrameNumber = -1;
+
+static int hf_usb_iso_error_count = -1;
+static int hf_usb_iso_numdesc = -1;
+static int hf_usb_iso_status = -1;
+static int hf_usb_iso_off = -1;
+static int hf_usb_iso_len = -1;
+static int hf_usb_iso_pad = -1;
+static int hf_usb_iso_data = -1;
+
+static int hf_usb_bmRequestType = -1;
+static int hf_usb_bmRequestType_direction = -1;
+static int hf_usb_bmRequestType_type = -1;
+static int hf_usb_bmRequestType_recipient = -1;
+static int hf_usb_bDescriptorType = -1;
static int hf_usb_descriptor_index = -1;
static int hf_usb_language_id = -1;
+static int hf_usb_bLength = -1;
+static int hf_usb_bcdUSB = -1;
+static int hf_usb_bDeviceClass = -1;
+static int hf_usb_bDeviceSubClass = -1;
+static int hf_usb_bDeviceProtocol = -1;
+static int hf_usb_bMaxPacketSize0 = -1;
+static int hf_usb_idVendor = -1;
+static int hf_usb_idProduct = -1;
+static int hf_usb_bcdDevice = -1;
+static int hf_usb_iManufacturer = -1;
+static int hf_usb_iProduct = -1;
+static int hf_usb_iSerialNumber = -1;
+static int hf_usb_bNumConfigurations = -1;
+static int hf_usb_wLANGID = -1;
+static int hf_usb_bString = -1;
+static int hf_usb_bInterfaceNumber = -1;
+static int hf_usb_bAlternateSetting = -1;
+static int hf_usb_bNumEndpoints = -1;
+static int hf_usb_bInterfaceClass = -1;
+static int hf_usb_bInterfaceSubClass = -1;
+static int hf_usb_bInterfaceProtocol = -1;
+static int hf_usb_iInterface = -1;
+static int hf_usb_bEndpointAddress = -1;
+static int hf_usb_bmAttributes = -1;
+static int hf_usb_bEndpointAttributeTransfer = -1;
+static int hf_usb_bEndpointAttributeSynchonisation = -1;
+static int hf_usb_bEndpointAttributeBehaviour = -1;
+static int hf_usb_wMaxPacketSize = -1;
+static int hf_usb_bInterval = -1;
+static int hf_usb_wTotalLength = -1;
+static int hf_usb_bNumInterfaces = -1;
+static int hf_usb_bConfigurationValue = -1;
+static int hf_usb_iConfiguration = -1;
+static int hf_usb_bMaxPower = -1;
+static int hf_usb_configuration_bmAttributes = -1;
+static int hf_usb_configuration_legacy10buspowered = -1;
+static int hf_usb_configuration_selfpowered = -1;
+static int hf_usb_configuration_remotewakeup = -1;
+static int hf_usb_bEndpointAddress_direction = -1;
+static int hf_usb_bEndpointAddress_number = -1;
+static int hf_usb_response_in = -1;
+static int hf_usb_time = -1;
+static int hf_usb_request_in = -1;
+
+static gint usb_hdr = -1;
+static gint usb_setup_hdr = -1;
+static gint usb_isodesc = -1;
+static gint ett_usb_endpoint = -1;
+static gint ett_usb_setup_bmrequesttype = -1;
+static gint ett_descriptor_device = -1;
+static gint ett_configuration_bmAttributes = -1;
+static gint ett_configuration_bEndpointAddress = -1;
+static gint ett_endpoint_bmAttributes = -1;
+
+static const int *usb_endpoint_fields[] = {
+ &hf_usb_endpoint_direction,
+ &hf_usb_endpoint_number_value,
+ NULL
+};
+
+static int usb_tap = -1;
+static gboolean try_heuristics = TRUE;
+
+static dissector_table_t usb_bulk_dissector_table;
+static dissector_table_t usb_control_dissector_table;
+static heur_dissector_list_t heur_bulk_subdissector_list;
+static heur_dissector_list_t heur_control_subdissector_list;
+
+/* http://www.usb.org/developers/docs/USB_LANGIDs.pdf */
+static const value_string usb_langid_vals[] = {
+ {0x0000, "no language specified"},
+ {0x0401, "Arabic (Saudi Arabia)"},
+ {0x0402, "Bulgarian"},
+ {0x0403, "Catalan"},
+ {0x0404, "Chinese (Taiwan)"},
+ {0x0405, "Czech"},
+ {0x0406, "Danish"},
+ {0x0407, "German (Standard)"},
+ {0x0408, "Greek"},
+ {0x0409, "English (United States)"},
+ {0x040a, "Spanish (Traditional Sort)"},
+ {0x040b, "Finnish"},
+ {0x040c, "French (Standard)"},
+ {0x040d, "Hebrew"},
+ {0x040e, "Hungarian"},
+ {0x040f, "Icelandic"},
+ {0x0410, "Italian (Standard)"},
+ {0x0411, "Japanese"},
+ {0x0412, "Korean"},
+ {0x0413, "Dutch (Netherlands)"},
+ {0x0414, "Norwegian (Bokmal)"},
+ {0x0415, "Polish"},
+ {0x0416, "Portuguese (Brazil)"},
+ {0x0418, "Romanian"},
+ {0x0419, "Russian"},
+ {0x041a, "Croatian"},
+ {0x041b, "Slovak"},
+ {0x041c, "Albanian"},
+ {0x041d, "Swedish"},
+ {0x041e, "Thai"},
+ {0x041f, "Turkish"},
+ {0x0420, "Urdu (Pakistan)"},
+ {0x0421, "Indonesian"},
+ {0x0422, "Ukrainian"},
+ {0x0423, "Belarussian"},
+ {0x0424, "Slovenian"},
+ {0x0425, "Estonian"},
+ {0x0426, "Latvian"},
+ {0x0427, "Lithuanian"},
+ {0x0429, "Farsi"},
+ {0x042a, "Vietnamese"},
+ {0x042b, "Armenian"},
+ {0x042c, "Azeri (Latin)"},
+ {0x042d, "Basque"},
+ {0x042f, "Macedonian"},
+ {0x0430, "Sutu"},
+ {0x0436, "Afrikaans"},
+ {0x0437, "Georgian"},
+ {0x0438, "Faeroese"},
+ {0x0439, "Hindi"},
+ {0x043e, "Malay (Malaysian)"},
+ {0x043f, "Kazakh"},
+ {0x0441, "Swahili (Kenya)"},
+ {0x0443, "Uzbek (Latin)"},
+ {0x0444, "Tatar (Tatarstan)"},
+ {0x0445, "Bengali"},
+ {0x0446, "Punjabi"},
+ {0x0447, "Gujarati"},
+ {0x0448, "Oriya"},
+ {0x0449, "Tamil"},
+ {0x044a, "Telugu"},
+ {0x044b, "Kannada"},
+ {0x044c, "Malayalam"},
+ {0x044d, "Assamese"},
+ {0x044e, "Marathi"},
+ {0x044f, "Sanskrit"},
+ {0x0455, "Burmese"},
+ {0x0457, "Konkani"},
+ {0x0458, "Manipuri"},
+ {0x0459, "Sindhi"},
+ {0x04ff, "HID (Usage Data Descriptor)"},
+ {0x0801, "Arabic (Iraq)"},
+ {0x0804, "Chinese (PRC)"},
+ {0x0807, "German (Switzerland)"},
+ {0x0809, "English (United Kingdom)"},
+ {0x080a, "Spanish (Mexican)"},
+ {0x080c, "French (Belgian)"},
+ {0x0810, "Italian (Switzerland)"},
+ {0x0812, "Korean (Johab)"},
+ {0x0813, "Dutch (Belgium)"},
+ {0x0814, "Norwegian (Nynorsk)"},
+ {0x0816, "Portuguese (Standard)"},
+ {0x081a, "Serbian (Latin)"},
+ {0x081d, "Swedish (Finland)"},
+ {0x0820, "Urdu (India)"},
+ {0x0827, "Lithuanian (Classic)"},
+ {0x082c, "Azeri (Cyrillic)"},
+ {0x083e, "Malay (Brunei Darussalam)"},
+ {0x0843, "Uzbek (Cyrillic)"},
+ {0x0860, "Kashmiri (India)"},
+ {0x0861, "Nepali (India)"},
+ {0x0c01, "Arabic (Egypt)"},
+ {0x0c04, "Chinese (Hong Kong SAR, PRC)"},
+ {0x0c07, "German (Austria)"},
+ {0x0c09, "English (Australian)"},
+ {0x0c0a, "Spanish (Modern Sort)"},
+ {0x0c0c, "French (Canadian)"},
+ {0x0c1a, "Serbian (Cyrillic)"},
+ {0x1001, "Arabic (Libya)"},
+ {0x1004, "Chinese (Singapore)"},
+ {0x1007, "German (Luxembourg)"},
+ {0x1009, "English (Canadian)"},
+ {0x100a, "Spanish (Guatemala)"},
+ {0x100c, "French (Switzerland)"},
+ {0x1401, "Arabic (Algeria)"},
+ {0x1404, "Chinese (Macau SAR)"},
+ {0x1407, "German (Liechtenstein)"},
+ {0x1409, "English (New Zealand)"},
+ {0x140a, "Spanish (Costa Rica)"},
+ {0x140c, "French (Luxembourg)"},
+ {0x1801, "Arabic (Morocco)"},
+ {0x1809, "English (Ireland)"},
+ {0x180a, "Spanish (Panama)"},
+ {0x180c, "French (Monaco)"},
+ {0x1c01, "Arabic (Tunisia)"},
+ {0x1c09, "English (South Africa)"},
+ {0x1c0a, "Spanish (Dominican Republic)"},
+ {0x2001, "Arabic (Oman)"},
+ {0x2009, "English (Jamaica)"},
+ {0x200a, "Spanish (Venezuela)"},
+ {0x2401, "Arabic (Yemen)"},
+ {0x2409, "English (Caribbean)"},
+ {0x240a, "Spanish (Colombia)"},
+ {0x2801, "Arabic (Syria)"},
+ {0x2809, "English (Belize)"},
+ {0x280a, "Spanish (Peru)"},
+ {0x2c01, "Arabic (Jordan)"},
+ {0x2c09, "English (Trinidad)"},
+ {0x2c0a, "Spanish (Argentina)"},
+ {0x3001, "Arabic (Lebanon)"},
+ {0x3009, "English (Zimbabwe)"},
+ {0x300a, "Spanish (Ecuador)"},
+ {0x3401, "Arabic (Kuwait)"},
+ {0x3409, "English (Philippines)"},
+ {0x340a, "Spanish (Chile)"},
+ {0x3801, "Arabic (U.A.E.)"},
+ {0x380a, "Spanish (Uruguay)"},
+ {0x3c01, "Arabic (Bahrain)"},
+ {0x3c0a, "Spanish (Paraguay)"},
+ {0x4001, "Arabic (Qatar)"},
+ {0x400a, "Spanish (Bolivia)"},
+ {0x440a, "Spanish (El Salvador)"},
+ {0x480a, "Spanish (Honduras)"},
+ {0x4c0a, "Spanish (Nicaragua)"},
+ {0x500a, "Spanish (Puerto Rico)"},
+ {0xf0ff, "HID (Vendor Defined 1)"},
+ {0xf4ff, "HID (Vendor Defined 2)"},
+ {0xf8ff, "HID (Vendor Defined 3)"},
+ {0xfcff, "HID (Vendor Defined 4)"},
+ {0, NULL}
+};
+
+static value_string_ext usb_langid_vals_ext = VALUE_STRING_EXT_INIT(usb_langid_vals);
+
+static const value_string usb_interfaceclass_vals[] = {
+ {IF_CLASS_FROM_INTERFACE_DESC, "Use class info in Interface Descriptor"},
+ {IF_CLASS_AUDIO, "AUDIO"},
+ {IF_CLASS_COMMUNICATIONS, "COMMUNICATIONS"},
+ {IF_CLASS_HID, "HID"},
+ {IF_CLASS_PHYSICAL, "PHYSICAL"},
+ {IF_CLASS_IMAGE, "IMAGE"},
+ {IF_CLASS_PRINTER, "PRINTER"},
+ {IF_CLASS_MASSTORAGE, "MASSTORAGE"},
+ {IF_CLASS_HUB, "HUB"},
+ {IF_CLASS_CDC_DATA, "CDC_DATA"},
+ {IF_CLASS_SMART_CARD, "SMART_CARD"},
+ {IF_CLASS_CONTENT_SECURITY, "CONTENT_SECURITY"},
+ {IF_CLASS_VIDEO, "VIDEO"},
+ {IF_CLASS_DIAGNOSTIC_DEVICE, "DIAGNOSTIC_DEVICE"},
+ {IF_CLASS_WIRELESS_CONTROLLER, "WIRELESS_CONTROLLER"},
+ {IF_CLASS_MISCELLANEOUS, "MISCELLANEOUS"},
+ {IF_CLASS_APPLICATION_SPECIFIC, "APPLICATION_SPECIFIC"},
+ {IF_CLASS_VENDOR_SPECIFIC, "VENDOR_SPECIFIC"},
+ {0, NULL}
+};
+
+
+static const value_string usb_transfer_type_vals[] = {
+ {URB_CONTROL, "URB_CONTROL"},
+ {URB_ISOCHRONOUS,"URB_ISOCHRONOUS"},
+ {URB_INTERRUPT,"URB_INTERRUPT"},
+ {URB_BULK,"URB_BULK"},
+ {0, NULL}
+};
+
+static const value_string usb_transfer_type_and_direction_vals[] = {
+ {URB_CONTROL, "URB_CONTROL out"},
+ {URB_ISOCHRONOUS,"URB_ISOCHRONOUS out"},
+ {URB_INTERRUPT,"URB_INTERRUPT out"},
+ {URB_BULK,"URB_BULK out"},
+ {URB_CONTROL | URB_TRANSFER_IN, "URB_CONTROL in"},
+ {URB_ISOCHRONOUS | URB_TRANSFER_IN,"URB_ISOCHRONOUS in"},
+ {URB_INTERRUPT | URB_TRANSFER_IN,"URB_INTERRUPT in"},
+ {URB_BULK | URB_TRANSFER_IN,"URB_BULK in"},
+ {0, NULL}
+};
+
+static const value_string usb_endpoint_direction_vals[] = {
+ {0, "OUT"},
+ {1, "IN"},
+ {0, NULL}
+};
+
+static const value_string usb_urb_type_vals[] = {
+ {URB_SUBMIT, "URB_SUBMIT"},
+ {URB_COMPLETE,"URB_COMPLETE"},
+ {URB_ERROR,"URB_ERROR"},
+ {0, NULL}
+};
+
+/*
+ * Descriptor types.
+ */
+#define USB_DT_DEVICE 1
+#define USB_DT_CONFIG 2
+#define USB_DT_STRING 3
+#define USB_DT_INTERFACE 4
+#define USB_DT_ENDPOINT 5
+#define USB_DT_DEVICE_QUALIFIER 6
+#define USB_DT_OTHER_SPEED_CONFIG 7
+#define USB_DT_INTERFACE_POWER 8
+/* these are from a minor usb 2.0 revision (ECN) */
+#define USB_DT_OTG 9
+#define USB_DT_DEBUG 10
+#define USB_DT_INTERFACE_ASSOCIATION 11
+/* these are from the Wireless USB spec */
+#define USB_DT_SECURITY 12
+#define USB_DT_KEY 13
+#define USB_DT_ENCRYPTION_TYPE 14
+#define USB_DT_BOS 15
+#define USB_DT_DEVICE_CAPABILITY 16
+#define USB_DT_WIRELESS_ENDPOINT_COMP 17
+#define USB_DT_HID 33
+#define USB_DT_RPIPE 34
+
+static const value_string descriptor_type_vals[] = {
+ {USB_DT_DEVICE, "DEVICE"},
+ {USB_DT_CONFIG, "CONFIGURATION"},
+ {USB_DT_STRING, "STRING"},
+ {USB_DT_INTERFACE, "INTERFACE"},
+ {USB_DT_ENDPOINT, "ENDPOINT"},
+ {USB_DT_DEVICE_QUALIFIER, "DEVICE QUALIFIER"},
+ {USB_DT_OTHER_SPEED_CONFIG, "OTHER_SPEED CONFIG"},
+ {USB_DT_INTERFACE_POWER, "INTERFACE POWER"},
+ {USB_DT_OTG, "OTG"},
+ {USB_DT_DEBUG, "DEBUG"},
+ {USB_DT_INTERFACE_ASSOCIATION, "INTERFACE ASSOCIATION"},
+ {USB_DT_SECURITY, "SECURITY"},
+ {USB_DT_KEY, "KEY"},
+ {USB_DT_ENCRYPTION_TYPE, "ENCRYPTION TYPE"},
+ {USB_DT_BOS, "BOS"},
+ {USB_DT_DEVICE_CAPABILITY, "DEVICE CAPABILITY"},
+ {USB_DT_WIRELESS_ENDPOINT_COMP, "WIRELESS ENDPOINT COMP"},
+ {USB_DT_HID, "HID"},
+ {USB_DT_RPIPE, "RPIPE"},
+ {0,NULL}
+};
+
+/*
+ * Feature selectors.
+ */
+#define USB_FS_DEVICE_REMOTE_WAKEUP 1
+#define USB_FS_ENDPOINT_HALT 0
+#define USB_FS_TEST_MODE 2
+
+static const value_string usb_feature_selector_vals[] = {
+ {USB_FS_DEVICE_REMOTE_WAKEUP, "DEVICE REMOTE WAKEUP"},
+ {USB_FS_ENDPOINT_HALT, "ENDPOINT HALT"},
+ {USB_FS_TEST_MODE, "TEST MODE"},
+ {0,NULL}
+};
+
+static const value_string usb_bmAttributes_transfer_vals[] = {
+ {0x00, "Control-Transfer"},
+ {0x01, "Isochronous-Transfer"},
+ {0x02, "Bulk-Transfer"},
+ {0x03, "Interrupt-Transfer"},
+ {0,NULL}
+};
+
+static const value_string usb_bmAttributes_sync_vals[] = {
+ {0x00, "No Sync"},
+ {0x01, "Asynchronous"},
+ {0x02, "Adaptive"},
+ {0x03, "Synchronous"},
+ {0,NULL}
+};
+
+static const value_string usb_bmAttributes_behaviour_vals[] = {
+ {0x00, "Data-Endpoint"},
+ {0x01, "Explicit Feedback-Endpoint"},
+ {0x02, "Implicit Feedback-Data-Endpoint"},
+ {0x03, "Reserved"},
+ {0,NULL}
+};
+
+/* from linux/include/asm-generic/errno.h */
+#define EPERM 1 /* Operation not permitted */
+#define ENOENT 2 /* No such file or directory */
+#define ESRCH 3 /* No such process */
+#define EINTR 4 /* Interrupted system call */
+#define EIO 5 /* I/O error */
+#define ENXIO 6 /* No such device or address */
+#define E2BIG 7 /* Argument list too long */
+#define ENOEXEC 8 /* Exec format error */
+#define EBADF 9 /* Bad file number */
+#define ECHILD 10 /* No child processes */
+#define EAGAIN 11 /* Try again */
+#define ENOMEM 12 /* Out of memory */
+#define EACCES 13 /* Permission denied */
+#define EFAULT 14 /* Bad address */
+#define ENOTBLK 15 /* Block device required */
+#define EBUSY 16 /* Device or resource busy */
+#define EEXIST 17 /* File exists */
+#define EXDEV 18 /* Cross-device link */
+#define ENODEV 19 /* No such device */
+#define ENOTDIR 20 /* Not a directory */
+#define EISDIR 21 /* Is a directory */
+#define EINVAL 22 /* Invalid argument */
+#define ENFILE 23 /* File table overflow */
+#define EMFILE 24 /* Too many open files */
+#define ENOTTY 25 /* Not a typewriter */
+#define ETXTBSY 26 /* Text file busy */
+#define EFBIG 27 /* File too large */
+#define ENOSPC 28 /* No space left on device */
+#define ESPIPE 29 /* Illegal seek */
+#define EROFS 30 /* Read-only file system */
+#define EMLINK 31 /* Too many links */
+#define EPIPE 32 /* Broken pipe */
+#define EDOM 33 /* Math argument out of domain of func */
+#define ERANGE 34 /* Math result not representable */
+
+
+/* from linux/include/asm-generic/errno.h*/
+#define EDEADLK 35 /* Resource deadlock would occur */
+#define ENAMETOOLONG 36 /* File name too long */
+#define ENOLCK 37 /* No record locks available */
+#define ENOSYS 38 /* Function not implemented */
+#define ENOTEMPTY 39 /* Directory not empty */
+#define ELOOP 40 /* Too many symbolic links encountered */
+#define EWOULDBLOCK EAGAIN /* Operation would block */
+#define ENOMSG 42 /* No message of desired type */
+#define EIDRM 43 /* Identifier removed */
+#define ECHRNG 44 /* Channel number out of range */
+#define EL2NSYNC 45 /* Level 2 not synchronized */
+#define EL3HLT 46 /* Level 3 halted */
+#define EL3RST 47 /* Level 3 reset */
+#define ELNRNG 48 /* Link number out of range */
+#define EUNATCH 49 /* Protocol driver not attached */
+#define ENOCSI 50 /* No CSI structure available */
+#define EL2HLT 51 /* Level 2 halted */
+#define EBADE 52 /* Invalid exchange */
+#define EBADR 53 /* Invalid request descriptor */
+#define EXFULL 54 /* Exchange full */
+#define ENOANO 55 /* No anode */
+#define EBADRQC 56 /* Invalid request code */
+#define EBADSLT 57 /* Invalid slot */
+
+#define EDEADLOCK EDEADLK
+
+#define EBFONT 59 /* Bad font file format */
+#define ENOSTR 60 /* Device not a stream */
+#define ENODATA 61 /* No data available */
+#define ETIME 62 /* Timer expired */
+#define ENOSR 63 /* Out of streams resources */
+#define ENONET 64 /* Machine is not on the network */
+#define ENOPKG 65 /* Package not installed */
+#define EREMOTE 66 /* Object is remote */
+#define ENOLINK 67 /* Link has been severed */
+#define EADV 68 /* Advertise error */
+#define ESRMNT 69 /* Srmount error */
+#define ECOMM 70 /* Communication error on send */
+#define EPROTO 71 /* Protocol error */
+#define EMULTIHOP 72 /* Multihop attempted */
+#define EDOTDOT 73 /* RFS specific error */
+#define EBADMSG 74 /* Not a data message */
+#define EOVERFLOW 75 /* Value too large for defined data type */
+#define ENOTUNIQ 76 /* Name not unique on network */
+#define EBADFD 77 /* File descriptor in bad state */
+#define EREMCHG 78 /* Remote address changed */
+#define ELIBACC 79 /* Can not access a needed shared library */
+#define ELIBBAD 80 /* Accessing a corrupted shared library */
+#define ELIBSCN 81 /* .lib section in a.out corrupted */
+#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
+#define ELIBEXEC 83 /* Cannot exec a shared library directly */
+#define EILSEQ 84 /* Illegal byte sequence */
+#define ERESTART 85 /* Interrupted system call should be restarted */
+#define ESTRPIPE 86 /* Streams pipe error */
+#define EUSERS 87 /* Too many users */
+#define ENOTSOCK 88 /* Socket operation on non-socket */
+#define EDESTADDRREQ 89 /* Destination address required */
+#define EMSGSIZE 90 /* Message too long */
+#define EPROTOTYPE 91 /* Protocol wrong type for socket */
+#define ENOPROTOOPT 92 /* Protocol not available */
+#define EPROTONOSUPPORT 93 /* Protocol not supported */
+#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
+#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
+#define EPFNOSUPPORT 96 /* Protocol family not supported */
+#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
+#define EADDRINUSE 98 /* Address already in use */
+#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
+#define ENETDOWN 100 /* Network is down */
+#define ENETUNREACH 101 /* Network is unreachable */
+#define ENETRESET 102 /* Network dropped connection because of reset */
+#define ECONNABORTED 103 /* Software caused connection abort */
+#define ECONNRESET 104 /* Connection reset by peer */
+#define ENOBUFS 105 /* No buffer space available */
+#define EISCONN 106 /* Transport endpoint is already connected */
+#define ENOTCONN 107 /* Transport endpoint is not connected */
+#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
+#define ETOOMANYREFS 109 /* Too many references: cannot splice */
+#define ETIMEDOUT 110 /* Connection timed out */
+#define ECONNREFUSED 111 /* Connection refused */
+#define EHOSTDOWN 112 /* Host is down */
+#define EHOSTUNREACH 113 /* No route to host */
+#define EALREADY 114 /* Operation already in progress */
+#define EINPROGRESS 115 /* Operation now in progress */
+#define ESTALE 116 /* Stale NFS file handle */
+#define EUCLEAN 117 /* Structure needs cleaning */
+#define ENOTNAM 118 /* Not a XENIX named type file */
+#define ENAVAIL 119 /* No XENIX semaphores available */
+#define EISNAM 120 /* Is a named type file */
+#define EREMOTEIO 121 /* Remote I/O error */
+#define EDQUOT 122 /* Quota exceeded */
+
+#define ENOMEDIUM 123 /* No medium found */
+#define EMEDIUMTYPE 124 /* Wrong medium type */
+#define ECANCELED 125 /* Operation Canceled */
+#define ENOKEY 126 /* Required key not available */
+#define EKEYEXPIRED 127 /* Key has expired */
+#define EKEYREVOKED 128 /* Key has been revoked */
+#define EKEYREJECTED 129 /* Key was rejected by service */
+
+/* for robust mutexes */
+#define EOWNERDEAD 130 /* Owner died */
+#define ENOTRECOVERABLE 131 /* State not recoverable */
+
+
+static const value_string usb_urb_status_vals[] = {
+ { 0, "Success"},
+ { -EPERM, "Operation not permitted (-EPERM)" },
+ { -ENOENT, "No such file or directory (-ENOENT)" },
+ { -ESRCH, "No such process (-ESRCH)" },
+ { -EINTR, "Interrupted system call (-EINTR)" },
+ { -EIO, "I/O error (-EIO)" },
+ { -ENXIO, "No such device or address (-ENXIO)" },
+ { -E2BIG, "Argument list too long (-E2BIG)" },
+ { -ENOEXEC, "Exec format error (-ENOEXEC)" },
+ { -EBADF, "Bad file number (-EBADF)" },
+ { -ECHILD, "No child processes (-ECHILD)" },
+ { -EAGAIN, "Try again (-EAGAIN)" },
+ { -ENOMEM, "Out of memory (-ENOMEM)" },
+ { -EACCES, "Permission denied (-EACCES)" },
+ { -EFAULT, "Bad address (-EFAULT)" },
+ { -ENOTBLK, "Block device required (-ENOTBLK)" },
+ { -EBUSY, "Device or resource busy (-EBUSY)" },
+ { -EEXIST, "File exists (-EEXIST)" },
+ { -EXDEV, "Cross-device link (-EXDEV)" },
+ { -ENODEV, "No such device (-ENODEV)" },
+ { -ENOTDIR, "Not a directory (-ENOTDIR)" },
+ { -EISDIR, "Is a directory (-EISDIR)" },
+ { -EINVAL, "Invalid argument (-EINVAL)" },
+ { -ENFILE, "File table overflow (-ENFILE)" },
+ { -EMFILE, "Too many open files (-EMFILE)" },
+ { -ENOTTY, "Not a typewriter (-ENOTTY)" },
+ { -ETXTBSY, "Text file busy (-ETXTBSY)" },
+ { -EFBIG, "File too large (-EFBIG)" },
+ { -ENOSPC, "No space left on device (-ENOSPC)" },
+ { -ESPIPE, "Illegal seek (-ESPIPE)" },
+ { -EROFS, "Read-only file system (-EROFS)" },
+ { -EMLINK, "Too many links (-EMLINK)" },
+ { -EPIPE, "Broken pipe (-EPIPE)" },
+ { -EDOM, "Math argument out of domain of func (-EDOM)" },
+ { -ERANGE, "Math result not representable (-ERANGE)" },
+ { -EDEADLK, "Resource deadlock would occur (-EDEADLK)" },
+ { -ENAMETOOLONG, "File name too long (-ENAMETOOLONG)" },
+ { -ENOLCK, "No record locks available (-ENOLCK)" },
+ { -ENOSYS, "Function not implemented (-ENOSYS)" },
+ { -ENOTEMPTY, "Directory not empty (-ENOTEMPTY)" },
+ { -ELOOP, "Too many symbolic links encountered (-ELOOP)" },
+ { -ENOMSG, "No message of desired type (-ENOMSG)" },
+ { -EIDRM, "Identifier removed (-EIDRM)" },
+ { -ECHRNG, "Channel number out of range (-ECHRNG)" },
+ { -EL2NSYNC, "Level 2 not synchronized (-EL2NSYNC)" },
+ { -EL3HLT, "Level 3 halted (-EL3HLT)" },
+ { -EL3RST, "Level 3 reset (-EL3RST)" },
+ { -ELNRNG, "Link number out of range (-ELNRNG)" },
+ { -EUNATCH, "Protocol driver not attached (-EUNATCH)" },
+ { -ENOCSI, "No CSI structure available (-ENOCSI)" },
+ { -EL2HLT, "Level 2 halted (-EL2HLT)" },
+ { -EBADE, "Invalid exchange (-EBADE)" },
+ { -EBADR, "Invalid request descriptor (-EBADR)" },
+ { -EXFULL, "Exchange full (-EXFULL)" },
+ { -ENOANO, "No anode (-ENOANO)" },
+ { -EBADRQC, "Invalid request code (-EBADRQC)" },
+ { -EBADSLT, "Invalid slot (-EBADSLT)" },
+ { -EBFONT, "Bad font file format (-EBFONT)" },
+ { -ENOSTR, "Device not a stream (-ENOSTR)" },
+ { -ENODATA, "No data available (-ENODATA)" },
+ { -ETIME, "Timer expired (-ETIME)" },
+ { -ENOSR, "Out of streams resources (-ENOSR)" },
+ { -ENONET, "Machine is not on the network (-ENONET)" },
+ { -ENOPKG, "Package not installed (-ENOPKG)" },
+ { -EREMOTE, "Object is remote (-EREMOTE)" },
+ { -ENOLINK, "Link has been severed (-ENOLINK)" },
+ { -EADV, "Advertise error (-EADV)" },
+ { -ESRMNT, "Srmount error (-ESRMNT)" },
+ { -ECOMM, "Communication error on send (-ECOMM)" },
+ { -EPROTO, "Protocol error (-EPROTO)" },
+ { -EMULTIHOP, "Multihop attempted (-EMULTIHOP)" },
+ { -EDOTDOT, "RFS specific error (-EDOTDOT)" },
+ { -EBADMSG, "Not a data message (-EBADMSG)" },
+ { -EOVERFLOW, "Value too large for defined data type (-EOVERFLOW)" },
+ { -ENOTUNIQ, "Name not unique on network (-ENOTUNIQ)" },
+ { -EBADFD, "File descriptor in bad state (-EBADFD)" },
+ { -EREMCHG, "Remote address changed (-EREMCHG)" },
+ { -ELIBACC, "Can not access a needed shared library (-ELIBACC)" },
+ { -ELIBBAD, "Accessing a corrupted shared library (-ELIBBAD)" },
+ { -ELIBSCN, ".lib section in a.out corrupted (-ELIBSCN)" },
+ { -ELIBMAX, "Attempting to link in too many shared libraries (-ELIBMAX)" },
+ { -ELIBEXEC, "Cannot exec a shared library directly (-ELIBEXEC)" },
+ { -EILSEQ, "Illegal byte sequence (-EILSEQ)" },
+ { -ERESTART, "Interrupted system call should be restarted (-ERESTART)" },
+ { -ESTRPIPE, "Streams pipe error (-ESTRPIPE)" },
+ { -EUSERS, "Too many users (-EUSERS)" },
+ { -ENOTSOCK, "Socket operation on non-socket (-ENOTSOCK)" },
+ { -EDESTADDRREQ, "Destination address required (-EDESTADDRREQ)" },
+ { -EMSGSIZE, "Message too long (-EMSGSIZE)" },
+ { -EPROTOTYPE, "Protocol wrong type for socket (-EPROTOTYPE)" },
+ { -ENOPROTOOPT, "Protocol not available (-ENOPROTOOPT)" },
+ { -EPROTONOSUPPORT, "Protocol not supported (-EPROTONOSUPPORT)" },
+ { -ESOCKTNOSUPPORT, "Socket type not supported (-ESOCKTNOSUPPORT)" },
+ { -EOPNOTSUPP, "Operation not supported on transport endpoint (-EOPNOTSUPP)" },
+ { -EPFNOSUPPORT, "Protocol family not supported (-EPFNOSUPPORT)" },
+ { -EAFNOSUPPORT, "Address family not supported by protocol (-EAFNOSUPPORT)" },
+ { -EADDRINUSE, "Address already in use (-EADDRINUSE)" },
+ { -EADDRNOTAVAIL, "Cannot assign requested address (-EADDRNOTAVAIL)" },
+ { -ENETDOWN, "Network is down (-ENETDOWN)" },
+ { -ENETUNREACH, "Network is unreachable (-ENETUNREACH)" },
+ { -ENETRESET, "Network dropped connection because of reset (-ENETRESET)" },
+ { -ECONNABORTED, "Software caused connection abort (-ECONNABORTED)" },
+ { -ECONNRESET, "Connection reset by peer (-ECONNRESET)" },
+ { -ENOBUFS, "No buffer space available (-ENOBUFS)" },
+ { -EISCONN, "Transport endpoint is already connected (-EISCONN)" },
+ { -ENOTCONN, "Transport endpoint is not connected (-ENOTCONN)" },
+ { -ESHUTDOWN, "Cannot send after transport endpoint shutdown (-ESHUTDOWN)" },
+ { -ETOOMANYREFS, "Too many references: cannot splice (-ETOOMANYREFS)" },
+ { -ETIMEDOUT, "Connection timed out (-ETIMEDOUT)" },
+ { -ECONNREFUSED, "Connection refused (-ECONNREFUSED)" },
+ { -EHOSTDOWN, "Host is down (-EHOSTDOWN)" },
+ { -EHOSTUNREACH, "No route to host (-EHOSTUNREACH)" },
+ { -EALREADY, "Operation already in progress (-EALREADY)" },
+ { -EINPROGRESS, "Operation now in progress (-EINPROGRESS)" },
+ { -ESTALE, "Stale NFS file handle (-ESTALE)" },
+ { -EUCLEAN, "Structure needs cleaning (-EUCLEAN)" },
+ { -ENOTNAM, "Not a XENIX named type file (-ENOTNAM)" },
+ { -ENAVAIL, "No XENIX semaphores available (-ENAVAIL)" },
+ { -EISNAM, "Is a named type file (-EISNAM)" },
+ { -EREMOTEIO, "Remote I/O error (-EREMOTEIO)" },
+ { -EDQUOT, "Quota exceeded (-EDQUOT)" },
+ { -ENOMEDIUM, "No medium found (-ENOMEDIUM)" },
+ { -EMEDIUMTYPE, "Wrong medium type (-EMEDIUMTYPE)" },
+ { -ECANCELED, "Operation Canceled (-ECANCELED)" },
+ { -ENOKEY, "Required key not available (-ENOKEY)" },
+ { -EKEYEXPIRED, "Key has expired (-EKEYEXPIRED)" },
+ { -EKEYREVOKED, "Key has been revoked (-EKEYREVOKED)" },
+ { -EKEYREJECTED, "Key was rejected by service (-EKEYREJECTED)" },
+ { -EOWNERDEAD, "Owner died (-EOWNERDEAD)" },
+ { -ENOTRECOVERABLE, "State not recoverable (-ENOTRECOVERABLE)" },
+ { 0, NULL }
+};
+
+
+static usb_conv_info_t *
+get_usb_conv_info(conversation_t *conversation)
+{
+ usb_conv_info_t *usb_conv_info;
+
+ /* do we have conversation specific data ? */
+ usb_conv_info = conversation_get_proto_data(conversation, proto_usb);
+ if(!usb_conv_info){
+ /* no not yet so create some */
+ usb_conv_info = se_alloc0(sizeof(usb_conv_info_t));
+ usb_conv_info->interfaceClass=IF_CLASS_UNKNOWN;
+ usb_conv_info->transactions=se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "usb transactions");
+
+ conversation_add_proto_data(conversation, proto_usb, usb_conv_info);
+ }
+
+ return usb_conv_info;
+}
+
+static conversation_t *
+get_usb_conversation(packet_info *pinfo, address *src_addr, address *dst_addr, guint32 src_endpoint, guint32 dst_endpoint)
+{
+ conversation_t *conversation;
+
+ /*
+ * Do we have a conversation for this connection?
+ */
+ conversation = find_conversation(pinfo->fd->num,
+ src_addr, dst_addr,
+ pinfo->ptype,
+ src_endpoint, dst_endpoint, 0);
+ if(conversation){
+ return conversation;
+ }
+
+ /* We don't yet have a conversation, so create one. */
+ conversation = conversation_new(pinfo->fd->num,
+ src_addr, dst_addr,
+ pinfo->ptype,
+ src_endpoint, dst_endpoint, 0);
+ return conversation;
+}
+
+
+
+/* SETUP dissectors */
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / CLEAR FEATURE
+ */
+
+
+/* 9.4.1 */
+static int
+dissect_usb_setup_clear_feature_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* feature selector */
+ proto_tree_add_item(tree, hf_usb_wFeatureSelector, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero/interface/endpoint */
+ /* XXX - check based on request type */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* length */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_clear_feature_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / GET CONFIGURATION
+ */
+
+
+/* 9.4.2 */
+static int
+dissect_usb_setup_get_configuration_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_tree_add_item(tree, hf_usb_bConfigurationValue, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / GET DESCRIPTOR
+ */
+
+
+/* 9.6.2 */
+static int
+dissect_usb_device_qualifier_descriptor(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "DEVICE QUALIFIER DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bcdUSB */
+ proto_tree_add_item(tree, hf_usb_bcdUSB, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* bDeviceClass */
+ proto_tree_add_item(tree, hf_usb_bDeviceClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDeviceSubClass */
+ proto_tree_add_item(tree, hf_usb_bDeviceSubClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDeviceProtocol */
+ proto_tree_add_item(tree, hf_usb_bDeviceProtocol, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bMaxPacketSize0 */
+ proto_tree_add_item(tree, hf_usb_bMaxPacketSize0, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bNumConfigurations */
+ proto_tree_add_item(tree, hf_usb_bNumConfigurations, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* one reserved byte */
+ offset++;
+
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ return offset;
+}
+
+/* 9.6.1 */
+static int
+dissect_usb_device_descriptor(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "DEVICE DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bcdUSB */
+ proto_tree_add_item(tree, hf_usb_bcdUSB, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* bDeviceClass */
+ proto_tree_add_item(tree, hf_usb_bDeviceClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDeviceSubClass */
+ proto_tree_add_item(tree, hf_usb_bDeviceSubClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDeviceProtocol */
+ proto_tree_add_item(tree, hf_usb_bDeviceProtocol, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bMaxPacketSize0 */
+ proto_tree_add_item(tree, hf_usb_bMaxPacketSize0, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* idVendor */
+ proto_tree_add_item(tree, hf_usb_idVendor, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* idProduct */
+ proto_tree_add_item(tree, hf_usb_idProduct, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* bcdDevice */
+ proto_tree_add_item(tree, hf_usb_bcdDevice, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* iManufacturer */
+ proto_tree_add_item(tree, hf_usb_iManufacturer, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* iProduct */
+ proto_tree_add_item(tree, hf_usb_iProduct, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* iSerialNumber */
+ proto_tree_add_item(tree, hf_usb_iSerialNumber, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bNumConfigurations */
+ proto_tree_add_item(tree, hf_usb_bNumConfigurations, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ return offset;
+}
+
+/* 9.6.7 */
+static int
+dissect_usb_string_descriptor(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+ guint8 len;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "STRING DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ len=tvb_get_guint8(tvb, offset);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ if(!usb_trans_info->u.get_descriptor.index){
+ /* list of languanges */
+ while(len>(offset-old_offset)){
+ /* wLANGID */
+ proto_tree_add_item(tree, hf_usb_wLANGID, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+ }
+ } else {
+ char *str;
+
+ /* unicode string */
+ str=tvb_get_ephemeral_unicode_string(tvb, offset, (len-2)/2, ENC_LITTLE_ENDIAN);
+ proto_tree_add_string(tree, hf_usb_bString, tvb, offset, len-2, str);
+ offset += len-2;
+ }
+
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ return offset;
+}
+
+
+
+/* 9.6.5 */
+static int
+dissect_usb_interface_descriptor(packet_info *pinfo, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+ guint8 len;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "INTERFACE DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ len = tvb_get_guint8(tvb, offset);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bInterfaceNumber */
+ proto_tree_add_item(tree, hf_usb_bInterfaceNumber, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bAlternateSetting */
+ proto_tree_add_item(tree, hf_usb_bAlternateSetting, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bNumEndpoints */
+ proto_tree_add_item(tree, hf_usb_bNumEndpoints, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bInterfaceClass */
+ proto_tree_add_item(tree, hf_usb_bInterfaceClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ /* save the class so we can access it later in the endpoint descriptor */
+ usb_conv_info->interfaceClass=tvb_get_guint8(tvb, offset);
+ if(!pinfo->fd->flags.visited){
+ usb_trans_info->interface_info=se_alloc0(sizeof(usb_conv_info_t));
+ usb_trans_info->interface_info->interfaceClass=tvb_get_guint8(tvb, offset);
+ usb_trans_info->interface_info->transactions=se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "usb transactions");
+ }
+ offset++;
+
+ /* bInterfaceSubClass */
+ proto_tree_add_item(tree, hf_usb_bInterfaceSubClass, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bInterfaceProtocol */
+ proto_tree_add_item(tree, hf_usb_bInterfaceProtocol, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* iInterface */
+ proto_tree_add_item(tree, hf_usb_iInterface, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ if(item){
+ proto_item_set_len(item, len);
+ }
+ if (offset != old_offset + len) {
+ /* unknown records */
+ }
+ offset = old_offset + len;
+
+ return offset;
+}
+
+/* 9.6.6 */
+static const true_false_string tfs_endpoint_direction = {
+ "IN Endpoint",
+ "OUT Endpoint"
+};
+static int
+dissect_usb_endpoint_descriptor(packet_info *pinfo, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ proto_item *endpoint_item=NULL;
+ proto_tree *endpoint_tree=NULL;
+ proto_item *ep_attrib_item=NULL;
+ proto_tree *ep_attrib_tree=NULL;
+ int old_offset=offset;
+ guint8 endpoint;
+ guint8 len;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "ENDPOINT DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ len = tvb_get_guint8(tvb, offset);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bEndpointAddress */
+ if(tree){
+ endpoint_item=proto_tree_add_item(tree, hf_usb_bEndpointAddress, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ endpoint_tree=proto_item_add_subtree(endpoint_item, ett_configuration_bEndpointAddress);
+ }
+ endpoint=tvb_get_guint8(tvb, offset)&0x0f;
+ proto_tree_add_item(endpoint_tree, hf_usb_bEndpointAddress_direction, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_item_append_text(endpoint_item, " %s", (tvb_get_guint8(tvb, offset)&0x80)?"IN":"OUT");
+ proto_tree_add_item(endpoint_tree, hf_usb_bEndpointAddress_number, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_item_append_text(endpoint_item, " Endpoint:%d", endpoint);
+ offset++;
+
+ /* Together with class from the interface descriptor we know what kind
+ * of class the device at endpoint is.
+ * Make sure a conversation exists for this endpoint and attach a
+ * usb_conv_into_t structure to it.
+ *
+ * All endpoints for the same interface descriptor share the same
+ * usb_conv_info structure.
+ */
+ if((!pinfo->fd->flags.visited)&&usb_trans_info->interface_info){
+ conversation_t *conversation;
+
+ if(pinfo->destport==NO_ENDPOINT){
+ static address tmp_addr;
+ static usb_address_t usb_addr;
+
+ /* Create a new address structure that points to the same device
+ * but the new endpoint.
+ */
+ usb_addr.device=((usb_address_t *)(pinfo->src.data))->device;
+ usb_addr.endpoint=endpoint;
+ SET_ADDRESS(&tmp_addr, AT_USB, USB_ADDR_LEN, (char *)&usb_addr);
+ conversation=get_usb_conversation(pinfo, &tmp_addr, &pinfo->dst, endpoint, pinfo->destport);
+ } else {
+ static address tmp_addr;
+ static usb_address_t usb_addr;
+
+ /* Create a new address structure that points to the same device
+ * but the new endpoint.
+ */
+ usb_addr.device=((usb_address_t *)(pinfo->dst.data))->device;
+ usb_addr.endpoint=endpoint;
+ SET_ADDRESS(&tmp_addr, AT_USB, USB_ADDR_LEN, (char *)&usb_addr);
+ conversation=get_usb_conversation(pinfo, &pinfo->src, &tmp_addr, pinfo->srcport, endpoint);
+ }
+
+ conversation_add_proto_data(conversation, proto_usb, usb_trans_info->interface_info);
+ }
+
+ /* bmAttributes */
+ if (tree) {
+ ep_attrib_item=proto_tree_add_item(tree, hf_usb_bmAttributes, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ ep_attrib_tree=proto_item_add_subtree(ep_attrib_item, ett_endpoint_bmAttributes);
+ }
+ proto_tree_add_item(ep_attrib_tree, hf_usb_bEndpointAttributeTransfer, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ /* isochronous only */
+ proto_tree_add_item(ep_attrib_tree, hf_usb_bEndpointAttributeSynchonisation, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ /* isochronous only */
+ proto_tree_add_item(ep_attrib_tree, hf_usb_bEndpointAttributeBehaviour, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* wMaxPacketSize */
+ proto_tree_add_item(tree, hf_usb_wMaxPacketSize, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* bInterval */
+ proto_tree_add_item(tree, hf_usb_bInterval, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ if(item){
+ proto_item_set_len(item, len);
+ }
+ if (offset != old_offset + len) {
+ /* unknown records */
+ }
+ offset = old_offset + len;
+
+ return offset;
+}
+
+static int
+dissect_usb_unknown_descriptor(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+ guint8 bLength;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "UNKNOWN DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ bLength = tvb_get_guint8(tvb, offset);
+ offset++;
+ if (bLength < 3) {
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ item = proto_tree_add_text(parent_tree, tvb, offset - 1, 1,
+ "Invalid bLength: %u", bLength);
+ expert_add_info_format(pinfo, item, PI_MALFORMED, PI_ERROR,
+ "Invalid bLength: %u", bLength);
+
+ return offset;
+ }
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ offset += bLength - 2;
+
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ return offset;
+}
+
+/* 9.6.3 */
+static const true_false_string tfs_mustbeone = {
+ "Must be 1 for USB 1.1 and higher",
+ "FIXME: Is this a USB 1.0 device"
+};
+static const true_false_string tfs_selfpowered = {
+ "This device is SELF-POWERED",
+ "This device is powered from the USB bus"
+};
+static const true_false_string tfs_remotewakeup = {
+ "This device supports REMOTE WAKEUP",
+ "This device does NOT support remote wakeup"
+};
+static int
+dissect_usb_configuration_descriptor(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+ int old_offset=offset;
+ guint16 len;
+ proto_item *flags_item=NULL;
+ proto_tree *flags_tree=NULL;
+ guint8 flags;
+ proto_item *power_item=NULL;
+ guint8 power;
+
+ if(parent_tree){
+ item=proto_tree_add_text(parent_tree, tvb, offset, -1, "CONFIGURATION DESCRIPTOR");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ }
+
+ /* bLength */
+ proto_tree_add_item(tree, hf_usb_bLength, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bDescriptorType */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* wTotalLength */
+ proto_tree_add_item(tree, hf_usb_wTotalLength, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ len=tvb_get_letohs(tvb, offset);
+ offset+=2;
+
+ /* bNumInterfaces */
+ proto_tree_add_item(tree, hf_usb_bNumInterfaces, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bConfigurationValue */
+ proto_tree_add_item(tree, hf_usb_bConfigurationValue, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* iConfiguration */
+ proto_tree_add_item(tree, hf_usb_iConfiguration, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ /* bmAttributes */
+ if(tree){
+ flags_item=proto_tree_add_item(tree, hf_usb_configuration_bmAttributes, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ flags_tree=proto_item_add_subtree(flags_item, ett_configuration_bmAttributes);
+ }
+ flags=tvb_get_guint8(tvb, offset);
+ proto_tree_add_item(flags_tree, hf_usb_configuration_legacy10buspowered, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_tree_add_item(flags_tree, hf_usb_configuration_selfpowered, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_item_append_text(flags_item, " %sSELF-POWERED", (flags&0x40)?"":"NOT ");
+ proto_tree_add_item(flags_tree, hf_usb_configuration_remotewakeup, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_item_append_text(flags_item, " %sREMOTE-WAKEUP", (flags&0x20)?"":"NO ");
+ offset++;
+
+ /* bMaxPower */
+ power_item=proto_tree_add_item(tree, hf_usb_bMaxPower, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ power=tvb_get_guint8(tvb, offset);
+ proto_item_append_text(power_item, " (%dmA)", power*2);
+ offset++;
+
+ /* initialize interface_info to NULL */
+ usb_trans_info->interface_info=NULL;
+
+ /* decode any additional interface and endpoint descriptors */
+ while(len>(old_offset-offset)){
+ guint8 next_type;
+
+ if(tvb_length_remaining(tvb, offset)<2){
+ break;
+ }
+ next_type=tvb_get_guint8(tvb, offset+1);
+ switch(next_type){
+ case USB_DT_INTERFACE:
+ offset=dissect_usb_interface_descriptor(pinfo, parent_tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_ENDPOINT:
+ offset=dissect_usb_endpoint_descriptor(pinfo, parent_tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ default:
+ offset=dissect_usb_unknown_descriptor(pinfo, parent_tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ /* was: return offset; */
+ }
+ }
+
+ if(item){
+ proto_item_set_len(item, offset-old_offset);
+ }
+
+ return offset;
+}
+
+/* 9.4.3 */
+static int
+dissect_usb_setup_get_descriptor_request(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* descriptor index */
+ proto_tree_add_item(tree, hf_usb_descriptor_index, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ usb_trans_info->u.get_descriptor.index=tvb_get_guint8(tvb, offset);
+ offset++;
+
+ /* descriptor type */
+ proto_tree_add_item(tree, hf_usb_bDescriptorType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ usb_trans_info->u.get_descriptor.type=tvb_get_guint8(tvb, offset);
+ offset++;
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
+ val_to_str(usb_trans_info->u.get_descriptor.type, descriptor_type_vals, "Unknown type %u"));
+ }
+
+ /* language id */
+ proto_tree_add_item(tree, hf_usb_language_id, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset+=2;
+
+ /* length */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_get_descriptor_response(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info)
+{
+ proto_item *item=NULL;
+ guint32 data_len;
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
+ val_to_str(usb_trans_info->u.get_descriptor.type, descriptor_type_vals, "Unknown type %u"));
+ }
+ switch(usb_trans_info->u.get_descriptor.type){
+ case USB_DT_DEVICE:
+ offset=dissect_usb_device_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_CONFIG:
+ offset=dissect_usb_configuration_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_STRING:
+ offset=dissect_usb_string_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_INTERFACE:
+ offset=dissect_usb_interface_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_ENDPOINT:
+ offset=dissect_usb_endpoint_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_DEVICE_QUALIFIER:
+ offset=dissect_usb_device_qualifier_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ case USB_DT_RPIPE:
+ if (usb_conv_info->interfaceClass == IF_CLASS_HID) {
+ offset=dissect_usb_hid_get_report_descriptor(pinfo, tree, tvb, offset, usb_trans_info, usb_conv_info);
+ break;
+ }
+ /* else fall through as default/unknown */
+ default:
+ /* XXX dissect the descriptor coming back from the device */
+ item=proto_tree_add_text(tree, tvb, offset, -1, "GET DESCRIPTOR data (unknown descriptor type)");
+ tree=proto_item_add_subtree(item, ett_descriptor_device);
+ tvb_memcpy(tvb, (guint8 *)&data_len, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_data, tvb, offset, 4, data_len);
+ offset += data_len;
+ break;
+ }
+
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / GET INTERFACE
+ */
+
+
+/* 9.4.4 */
+static int
+dissect_usb_setup_get_interface_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* interface */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* length */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_get_interface_response(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* alternate setting */
+ proto_tree_add_item(tree, hf_usb_bAlternateSetting, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / GET STATUS
+ */
+
+
+/* 9.4.5 */
+static int
+dissect_usb_setup_get_status_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero/interface/endpoint */
+ /* XXX - check based on request type */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* length */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_get_status_response(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* status */
+ /* XXX - show bits */
+ proto_tree_add_item(tree, hf_usb_wStatus, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / SET ADDRESS
+ */
+
+
+/* 9.4.6 */
+static int
+dissect_usb_setup_set_address_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* device address */
+ proto_tree_add_item(tree, hf_usb_device_address, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_set_address_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / SET CONFIGURATION
+ */
+
+
+/* 9.4.7 */
+static int
+dissect_usb_setup_set_configuration_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* configuration value */
+ proto_tree_add_item(tree, hf_usb_bConfigurationValue, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_set_configuration_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ return offset;
+}
+
+
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / SET FEATURE
+ */
+
+
+/* 9.4.9 */
+static int
+dissect_usb_setup_set_feature_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* feature selector */
+ proto_tree_add_item(tree, hf_usb_wFeatureSelector, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero/interface/endpoint or test selector */
+ /* XXX - check based on request type */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_set_feature_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ return offset;
+}
-static gint usb_hdr = -1;
-static gint usb_setup_hdr = -1;
-static gint ett_usb_setup_bmrequesttype = -1;
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / SET INTERFACE
+ */
-/* there is one such structure for each device/endpoint conversation */
-typedef struct _usb_conv_info_t {
- emem_tree_t *transactions;
-} usb_conv_info_t;
+/* 9.4.10 */
+static int
+dissect_usb_setup_set_interface_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* alternate setting */
+ proto_tree_add_item(tree, hf_usb_bAlternateSetting, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset += 2;
-typedef enum {
- URB_CONTROL_INPUT,
- URB_CONTROL_OUTPUT,
- URB_ISOCHRONOUS_INPUT,
- URB_ISOCHRONOUS_OUTPUT,
- URB_INTERRUPT_INPUT,
- URB_INTERRUPT_OUTPUT,
- URB_BULK_INPUT,
- URB_BULK_OUTPUT,
- URB_UNKNOWN
-} urb_type_t;
+ /* interface */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
-typedef struct usb_header {
- guint32 urb_type;
- guint32 device_address;
- guint32 endpoint_number;
- guint32 setup_packet;
-} usb_header_t;
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
-typedef struct usb_setup {
- guint8 bmRequestType;
- guint8 bRequest;
- guint16 wValue;
- guint16 wIndex;
- guint16 wLength;
-} usb_setup_t;
+ return offset;
+}
+static int
+dissect_usb_setup_set_interface_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ return offset;
+}
-static const value_string usb_urb_type_vals[] = {
- {URB_CONTROL_INPUT, "URB_CONTROL_INPUT"},
- {URB_CONTROL_OUTPUT,"URB_CONTROL_OUTPUT"},
- {URB_ISOCHRONOUS_INPUT,"URB_ISOCHRONOUS_INPUT"},
- {URB_ISOCHRONOUS_OUTPUT,"URB_ISOCHRONOUS_OUTPUT"},
- {URB_INTERRUPT_INPUT,"URB_INTERRUPT_INPUT"},
- {URB_INTERRUPT_OUTPUT,"URB_INTERRUPT_OUTPUT"},
- {URB_BULK_INPUT,"URB_BULK_INPUT"},
- {URB_BULK_OUTPUT,"URB_BULK_OUTPUT"},
- {URB_UNKNOWN, "URB_UNKNOWN"},
- {0, NULL}
-};
+/*
+ * These dissectors are used to dissect the setup part and the data
+ * for URB_CONTROL_INPUT / SYNCH FRAME
+ */
-#define USB_DT_DEVICE 1
-#define USB_DT_CONFIGURATION 2
-#define USB_DT_STRING 3
-#define USB_DT_INTERFACE 4
-#define USB_DT_ENDPOINT 5
-#define USB_DT_DEVICE_QUALIFIER 6
-#define USB_DT_OTHER_SPEED_CONFIGURATION 7
-#define USB_DT_INTERFACE_POWER 8
-static const value_string descriptor_type_vals[] = {
- {USB_DT_DEVICE, "DEVICE"},
- {USB_DT_CONFIGURATION, "CONFIGURATION"},
- {USB_DT_STRING, "STRING"},
- {USB_DT_INTERFACE, "INTERFACE"},
- {USB_DT_ENDPOINT, "ENDPOINT"},
- {USB_DT_DEVICE_QUALIFIER, "DEVICE_QUALIFIER"},
- {USB_DT_OTHER_SPEED_CONFIGURATION, "OTHER_SPEED_CONFIGURATION"},
- {USB_DT_INTERFACE_POWER, "INTERFACE_POWER"},
- {0,NULL}
-};
-/* SETUP dissectors */
-static void
-dissect_usb_setup_get_descriptor(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, guint8 requesttype)
-{
- switch(requesttype){
- case 0x80: /* 9.4.3 */
- proto_tree_add_item(tree, hf_usb_descriptor_type, tvb, offset, 1, FALSE);
- offset++;
- proto_tree_add_item(tree, hf_usb_descriptor_index, tvb, offset, 1, FALSE);
- offset++;
- proto_tree_add_item(tree, hf_usb_language_id, tvb, offset, 2, FALSE);
- offset+=2;
- proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, FALSE);
- offset += 2;
- break;
- default:
- proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, FALSE);
- offset += 2;
- }
+/* 9.4.11 */
+static int
+dissect_usb_setup_synch_frame_request(packet_info *pinfo _U_, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* zero */
+ proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* endpoint */
+ /* XXX */
+ proto_tree_add_item(tree, hf_usb_wInterface, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ /* two */
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_usb_setup_synch_frame_response(packet_info *pinfo _U_, proto_tree *tree _U_, tvbuff_t *tvb _U_, int offset, usb_trans_info_t *usb_trans_info _U_, usb_conv_info_t *usb_conv_info _U_)
+{
+ /* frame number */
+ proto_tree_add_item(tree, hf_usb_wFrameNumber, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+
+ return offset;
}
-typedef void (*usb_setup_dissector)(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, guint8 requesttype);
+typedef int (*usb_setup_dissector)(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, usb_trans_info_t *usb_trans_info, usb_conv_info_t *usb_conv_info);
typedef struct _usb_setup_dissector_table_t {
guint8 request;
usb_setup_dissector dissector;
} usb_setup_dissector_table_t;
-#define USB_SETUP_GET_DESCRIPTOR 6
-static const usb_setup_dissector_table_t setup_dissectors[] = {
- {USB_SETUP_GET_DESCRIPTOR, dissect_usb_setup_get_descriptor},
- {0, NULL}
-};
-static const value_string setup_request_names_vals[] = {
- {USB_SETUP_GET_DESCRIPTOR, "GET DESCRIPTOR"},
+#define USB_SETUP_GET_STATUS 0
+#define USB_SETUP_CLEAR_FEATURE 1
+#define USB_SETUP_SET_FEATURE 2
+#define USB_SETUP_SET_ADDRESS 5
+#define USB_SETUP_GET_DESCRIPTOR 6
+#define USB_SETUP_SET_DESCRIPTOR 7
+#define USB_SETUP_GET_CONFIGURATION 8
+#define USB_SETUP_SET_CONFIGURATION 9
+#define USB_SETUP_GET_INTERFACE 10
+#define USB_SETUP_SET_INTERFACE 11
+#define USB_SETUP_SYNCH_FRAME 12
+
+static const usb_setup_dissector_table_t setup_request_dissectors[] = {
+ {USB_SETUP_GET_STATUS, dissect_usb_setup_get_status_request},
+ {USB_SETUP_CLEAR_FEATURE, dissect_usb_setup_clear_feature_request},
+ {USB_SETUP_SET_FEATURE, dissect_usb_setup_set_feature_request},
+ {USB_SETUP_SET_ADDRESS, dissect_usb_setup_set_address_request},
+ {USB_SETUP_GET_DESCRIPTOR, dissect_usb_setup_get_descriptor_request},
+ {USB_SETUP_SET_CONFIGURATION, dissect_usb_setup_set_configuration_request},
+ {USB_SETUP_GET_INTERFACE, dissect_usb_setup_get_interface_request},
+ {USB_SETUP_SET_INTERFACE, dissect_usb_setup_set_interface_request},
+ {USB_SETUP_SYNCH_FRAME, dissect_usb_setup_synch_frame_request},
{0, NULL}
-};
-
-
-
-
+};
+static const usb_setup_dissector_table_t setup_response_dissectors[] = {
+ {USB_SETUP_GET_STATUS, dissect_usb_setup_get_status_response},
+ {USB_SETUP_CLEAR_FEATURE, dissect_usb_setup_clear_feature_response},
+ {USB_SETUP_SET_FEATURE, dissect_usb_setup_set_feature_response},
+ {USB_SETUP_SET_ADDRESS, dissect_usb_setup_set_address_response},
+ {USB_SETUP_GET_DESCRIPTOR, dissect_usb_setup_get_descriptor_response},
+ {USB_SETUP_GET_CONFIGURATION, dissect_usb_setup_get_configuration_response},
+ {USB_SETUP_SET_CONFIGURATION, dissect_usb_setup_set_configuration_response},
+ {USB_SETUP_GET_INTERFACE, dissect_usb_setup_get_interface_response},
+ {USB_SETUP_SET_INTERFACE, dissect_usb_setup_set_interface_response},
+ {USB_SETUP_SYNCH_FRAME, dissect_usb_setup_synch_frame_response},
+ {0, NULL}
+};
+/* bRequest values but only when bmRequestType.type == 0 (Device) */
+static const value_string setup_request_names_vals[] = {
+ {USB_SETUP_GET_STATUS, "GET STATUS"},
+ {USB_SETUP_CLEAR_FEATURE, "CLEAR FEATURE"},
+ {USB_SETUP_SET_FEATURE, "SET FEATURE"},
+ {USB_SETUP_SET_ADDRESS, "SET ADDRESS"},
+ {USB_SETUP_GET_DESCRIPTOR, "GET DESCRIPTOR"},
+ {USB_SETUP_SET_DESCRIPTOR, "SET DESCRIPTOR"},
+ {USB_SETUP_GET_CONFIGURATION, "GET CONFIGURATION"},
+ {USB_SETUP_SET_CONFIGURATION, "SET CONFIGURATION"},
+ {USB_SETUP_GET_INTERFACE, "GET INTERFACE"},
+ {USB_SETUP_SET_INTERFACE, "SET INTERFACE"},
+ {USB_SETUP_SYNCH_FRAME, "SYNCH FRAME"},
+ {0, NULL}
+};
static const true_false_string tfs_bmrequesttype_direction = {
- "Device-to-host",
- "Host-to-device"
+ "Device-to-host",
+ "Host-to-device"
};
+
static const value_string bmrequesttype_type_vals[] = {
- {0, "Standard"},
- {1, "Class"},
- {2, "Vendor"},
- {3, "Reserved"},
+ {RQT_SETUP_TYPE_STANDARD, "Standard"},
+ {RQT_SETUP_TYPE_CLASS, "Class"},
+ {RQT_SETUP_TYPE_VENDOR, "Vendor"},
{0, NULL}
};
+
static const value_string bmrequesttype_recipient_vals[] = {
- {0, "Device"},
- {1, "Interface"},
- {2, "Endpoint"},
- {3, "Other"},
- {0, NULL}
+ {RQT_SETUP_RECIPIENT_DEVICE, "Device" },
+ {RQT_SETUP_RECIPIENT_INTERFACE, "Interface" },
+ {RQT_SETUP_RECIPIENT_INTERFACE, "Endpoint" },
+ {RQT_SETUP_RECIPIENT_INTERFACE, "Other" },
+ {0, NULL }
};
static int
-dissect_usb_setup_bmrequesttype(proto_tree *parent_tree, tvbuff_t *tvb, int offset)
+dissect_usb_bmrequesttype(proto_tree *parent_tree, tvbuff_t *tvb, int offset,
+ int *type)
+{
+ proto_item *item=NULL;
+ proto_tree *tree=NULL;
+
+ if(parent_tree){
+ item=proto_tree_add_item(parent_tree, hf_usb_bmRequestType, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ tree = proto_item_add_subtree(item, ett_usb_setup_bmrequesttype);
+ }
+
+ *type = USB_TYPE(tvb_get_guint8(tvb, offset));
+ proto_tree_add_item(tree, hf_usb_bmRequestType_direction, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_tree_add_item(tree, hf_usb_bmRequestType_type, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ proto_tree_add_item(tree, hf_usb_bmRequestType_recipient, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+
+ return ++offset;
+}
+
+/* Adds the Linux USB pseudo header fields to the tree.
+ * NOTE: The multi-byte fields in this header, and the pseudo-header
+ * extension, are in host-endian format so we can't
+ * use proto_tree_add_item() nor the tvb_get_xyz() routines and is
+ * the reason for the tvb_memcpy() and proto_tree_add_uint[64]()
+ * pairs below. */
+static void
+dissect_linux_usb_pseudo_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
- proto_item *item=NULL;
- proto_tree *tree=NULL;
+ guint8 transfer_type;
+ guint8 endpoint_number;
+ guint8 transfer_type_and_direction;
+ guint8 type, flag;
+ guint16 val16;
+ guint32 val32;
+ guint64 val64;
+
+ tvb_memcpy(tvb, (guint8 *)&val64, 0, 8);
+ proto_tree_add_uint64(tree, hf_usb_urb_id, tvb, 0, 8, val64);
+
+ /* show the event type of this URB as string and as a character */
+ type = tvb_get_guint8(tvb, 8);
+ proto_tree_add_uint_format_value(tree, hf_usb_urb_type, tvb, 8, 1,
+ type, "%s ('%c')", val_to_str(type, usb_urb_type_vals, "Unknown %d"),
+ isprint(type) ? type : '.');
+ proto_tree_add_item(tree, hf_usb_transfer_type, tvb, 9, 1, ENC_BIG_ENDIAN);
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ transfer_type = tvb_get_guint8(tvb, 9);
+ endpoint_number = tvb_get_guint8(tvb, 10);
+ transfer_type_and_direction = (transfer_type & 0x7F) | (endpoint_number & 0x80);
+ col_append_str(pinfo->cinfo, COL_INFO,
+ val_to_str(transfer_type_and_direction, usb_transfer_type_and_direction_vals, "Unknown type %x"));
+ }
+
+ proto_tree_add_bitmask(tree, tvb, 10, hf_usb_endpoint_number, ett_usb_endpoint, usb_endpoint_fields, ENC_BIG_ENDIAN);
+ proto_tree_add_item(tree, hf_usb_device_address, tvb, 11, 1, ENC_BIG_ENDIAN);
+
+ tvb_memcpy(tvb, (guint8 *)&val16, 12, 2);
+ proto_tree_add_uint(tree, hf_usb_bus_id, tvb, 12, 2, val16);
+
+ /* Right after the pseudo header we always have
+ * sizeof(struct usb_device_setup_hdr) bytes. The content of these
+ * bytes only have meaning in case setup_flag == 0.
+ */
+ flag = tvb_get_guint8(tvb, 14);
+ if (flag == 0) {
+ proto_tree_add_string(tree, hf_usb_setup_flag, tvb, 14, 1, "relevant (0)");
+ } else {
+ proto_tree_add_string_format_value(tree, hf_usb_setup_flag, tvb,
+ 14, 1, &flag, "not relevant ('%c')", isprint(flag) ? flag: '.');
+ }
+
+ flag = tvb_get_guint8(tvb, 15);
+ if (flag == 0) {
+ proto_tree_add_string(tree, hf_usb_data_flag, tvb, 15, 1, "present (0)");
+ } else {
+ proto_tree_add_string_format_value(tree, hf_usb_data_flag, tvb,
+ 15, 1, &flag, "not present ('%c')", isprint(flag) ? flag : '.');
+ }
- if(parent_tree){
- item=proto_tree_add_item(parent_tree, hf_usb_setup_bmRequestType, tvb, offset, 1, FALSE);
- tree = proto_item_add_subtree(item, ett_usb_setup_bmrequesttype);
- }
+ tvb_memcpy(tvb, (guint8 *)&val64, 16, 8);
+ proto_tree_add_uint64(tree, hf_usb_urb_ts_sec, tvb, 16, 8, val64);
- proto_tree_add_item(tree, hf_usb_setup_bmRequestType_direction, tvb, offset, 1, FALSE);
- proto_tree_add_item(tree, hf_usb_setup_bmRequestType_type, tvb, offset, 1, FALSE);
- proto_tree_add_item(tree, hf_usb_setup_bmRequestType_recipient, tvb, offset, 1, FALSE);
+ tvb_memcpy(tvb, (guint8 *)&val32, 24, 4);
+ proto_tree_add_uint(tree, hf_usb_urb_ts_usec, tvb, 24, 4, val32);
- offset++;
- return offset;
+ tvb_memcpy(tvb, (guint8 *)&val32, 28, 4);
+ proto_tree_add_int(tree, hf_usb_urb_status, tvb, 28, 4, val32);
+
+ tvb_memcpy(tvb, (guint8 *)&val32, 32, 4);
+ proto_tree_add_uint(tree, hf_usb_urb_len, tvb, 32, 4, val32);
+
+ tvb_memcpy(tvb, (guint8 *)&val32, 36, 4);
+ proto_tree_add_uint(tree, hf_usb_data_len, tvb, 36, 4, val32);
}
+/*
+ * XXX - put these into the protocol tree as appropriate.
+ */
+static int
+dissect_linux_usb_pseudo_header_ext(tvbuff_t *tvb, int offset,
+ packet_info *pinfo _U_,
+ proto_tree *tree _U_)
+{
+ guint32 ndesc;
+
+ offset += 4; /* interval */
+ offset += 4; /* start_frame */
+ offset += 4; /* copy of URB's transfer flags */
+ tvb_memcpy(tvb, (guint8 *)&ndesc, offset, 4);
+ offset += 4;
+ /*
+ * Isochronous descriptors. Each one is 16 bytes long.
+ */
+ offset += ndesc*16;
+ return offset;
+}
static void
-dissect_usb(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent)
+dissect_linux_usb_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent,
+ gboolean header_len_64_bytes)
{
- int offset = 0;
+ unsigned int offset = 0;
int type, endpoint;
- gboolean setup;
+ guint8 setup_flag;
proto_tree *tree = NULL;
- static guint32 src_addr, dst_addr, tmp_addr; /* has to be static due to SET_ADDRESS */
- guint32 src_port, dst_port;
- gboolean is_request;
- usb_conv_info_t *usb_conv_info;
+ guint32 tmp_addr;
+ static usb_address_t src_addr, dst_addr; /* has to be static due to SET_ADDRESS */
+ guint32 src_endpoint, dst_endpoint;
+ gboolean is_request=FALSE;
+ usb_conv_info_t *usb_conv_info=NULL;
+ usb_trans_info_t *usb_trans_info=NULL;
conversation_t *conversation;
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "USB");
+ usb_tap_data_t *tap_data=NULL;
+
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "USB");
- /* add usb hdr*/
+ /* add usb hdr*/
if (parent) {
proto_item *ti = NULL;
- ti = proto_tree_add_protocol_format(parent, proto_usb, tvb, 0, sizeof(usb_header_t), "USB URB");
-
+ ti = proto_tree_add_protocol_format(parent, proto_usb, tvb, 0,
+ header_len_64_bytes ? 64 : 48, "USB URB");
tree = proto_item_add_subtree(ti, usb_hdr);
}
-
- type = tvb_get_ntohl(tvb, offset);
- proto_tree_add_item(tree, hf_usb_urb_type, tvb, offset, 4, FALSE);
- offset += 4;
- if (check_col(pinfo->cinfo, COL_INFO)) {
- col_append_fstr(pinfo->cinfo, COL_INFO, "%s",
- val_to_str(type, usb_urb_type_vals, "Unknown type %x"));
+ dissect_linux_usb_pseudo_header(tvb, pinfo, tree);
+ is_request = (tvb_get_guint8(tvb, 8) == URB_SUBMIT) ? TRUE : FALSE;
+ type = tvb_get_guint8(tvb, 9);
+ endpoint = tvb_get_guint8(tvb, 10) & (~URB_TRANSFER_IN);
+ tmp_addr = tvb_get_guint8(tvb, 11);
+ setup_flag = tvb_get_guint8(tvb, 14);
+ offset += 40; /* skip first part of the pseudo-header */
+
+ /* Set up addresses and ports. */
+ if (is_request) {
+ src_addr.device = 0xffffffff;
+ src_addr.endpoint = src_endpoint = NO_ENDPOINT;
+ dst_addr.device = htolel(tmp_addr);
+ dst_addr.endpoint = dst_endpoint = htolel(endpoint);
+ } else {
+ src_addr.device = htolel(tmp_addr);
+ src_addr.endpoint = src_endpoint = htolel(endpoint);
+ dst_addr.device = 0xffffffff;
+ dst_addr.endpoint = dst_endpoint = NO_ENDPOINT;
}
-#define USB_ADDR_LEN 4
- proto_tree_add_item(tree, hf_usb_device_address, tvb, offset, 4, FALSE);
- tmp_addr=tvb_get_ntohl(tvb, offset);
- offset += 4;
-
- proto_tree_add_item(tree, hf_usb_endpoint_number, tvb, offset, 4, FALSE);
- endpoint=tvb_get_ntohl(tvb, offset);
- offset += 4;
-
- /* check for setup hdr presence */
- setup = tvb_get_ntohl(tvb, offset);
- offset += 4;
-
-
- /* set up addresses and ports */
- switch(type){
- case URB_CONTROL_INPUT:
- /* CONTROL INPUT packets are requests if they contain a "setup"
- * blob and responses othervise
- */
- if(setup){
- src_addr=0xffffffff;
- dst_addr=tmp_addr;
- src_port=0xffff;
- dst_port=endpoint;
- is_request=TRUE;
- } else {
- src_addr=tmp_addr;
- dst_addr=0xffffffff;
- src_port=endpoint;
- dst_port=0xffff;
- is_request=FALSE;
- }
- break;
- default:
- /* dont know */
- src_addr=0xffffffff;
- dst_addr=0xffffffff;
- src_port=0xffff;
- dst_port=0xffff;
- is_request=FALSE;
- }
SET_ADDRESS(&pinfo->net_src, AT_USB, USB_ADDR_LEN, (char *)&src_addr);
SET_ADDRESS(&pinfo->src, AT_USB, USB_ADDR_LEN, (char *)&src_addr);
SET_ADDRESS(&pinfo->net_dst, AT_USB, USB_ADDR_LEN, (char *)&dst_addr);
SET_ADDRESS(&pinfo->dst, AT_USB, USB_ADDR_LEN, (char *)&dst_addr);
pinfo->ptype=PT_USB;
- pinfo->srcport=src_port;
- pinfo->destport=dst_port;
+ pinfo->srcport=src_endpoint;
+ pinfo->destport=dst_endpoint;
+ conversation=get_usb_conversation(pinfo, &pinfo->src, &pinfo->dst, pinfo->srcport, pinfo->destport);
- /*
- * Do we have a conversation for this connection?
+ usb_conv_info=get_usb_conv_info(conversation);
+ pinfo->usb_conv_info=usb_conv_info;
+
+
+ /* request/response matching so we can keep track of transaction specific
+ * data.
*/
- conversation = find_conversation(pinfo->fd->num,
- &pinfo->src, &pinfo->dst,
- pinfo->ptype,
- pinfo->srcport, pinfo->destport, 0);
- if (conversation == NULL) {
- /* We don't yet have a conversation, so create one. */
- conversation = conversation_new(pinfo->fd->num,
- &pinfo->src, &pinfo->dst,
- pinfo->ptype,
- pinfo->srcport, pinfo->destport, 0);
- }
- /* do we have conversation specific data ? */
- usb_conv_info = conversation_get_proto_data(conversation, proto_usb);
- if(!usb_conv_info){
- /* no not yet so create some */
- usb_conv_info = se_alloc(sizeof(usb_conv_info_t));
- usb_conv_info->transactions=se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "usb transactions");
+ if(is_request){
+ /* this is a request */
+ usb_trans_info=se_tree_lookup32(usb_conv_info->transactions, pinfo->fd->num);
+ if(!usb_trans_info){
+ usb_trans_info=se_alloc0(sizeof(usb_trans_info_t));
+ usb_trans_info->request_in=pinfo->fd->num;
+ usb_trans_info->req_time=pinfo->fd->abs_ts;
+ se_tree_insert32(usb_conv_info->transactions, pinfo->fd->num, usb_trans_info);
+ }
+ usb_conv_info->usb_trans_info=usb_trans_info;
- conversation_add_proto_data(conversation, proto_usb, usb_conv_info);
- }
-
+ if(usb_trans_info->response_in){
+ proto_item *ti;
+ ti=proto_tree_add_uint(tree, hf_usb_response_in, tvb, 0, 0, usb_trans_info->response_in);
+ PROTO_ITEM_SET_GENERATED(ti);
+ }
+ } else {
+ /* this is a response */
+ if(pinfo->fd->flags.visited){
+ usb_trans_info=se_tree_lookup32(usb_conv_info->transactions, pinfo->fd->num);
+ } else {
+ usb_trans_info=se_tree_lookup32_le(usb_conv_info->transactions, pinfo->fd->num);
+ if(usb_trans_info){
+ usb_trans_info->response_in=pinfo->fd->num;
+ se_tree_insert32(usb_conv_info->transactions, pinfo->fd->num, usb_trans_info);
+ }
+ }
+ usb_conv_info->usb_trans_info=usb_trans_info;
+ if(usb_trans_info && usb_trans_info->request_in){
+ proto_item *ti;
+ nstime_t t, deltat;
+
+ ti=proto_tree_add_uint(tree, hf_usb_request_in, tvb, 0, 0, usb_trans_info->request_in);
+ PROTO_ITEM_SET_GENERATED(ti);
+
+ t = pinfo->fd->abs_ts;
+ nstime_delta(&deltat, &t, &usb_trans_info->req_time);
+ ti=proto_tree_add_time(tree, hf_usb_time, tvb, 0, 0, &deltat);
+ PROTO_ITEM_SET_GENERATED(ti);
+ }
+ }
+ tap_data=ep_alloc(sizeof(usb_tap_data_t));
+ tap_data->urb_type=tvb_get_guint8(tvb, 8);
+ tap_data->transfer_type=(guint8)type;
+ tap_data->conv_info=usb_conv_info;
+ tap_data->trans_info=usb_trans_info;
+ tap_queue_packet(usb_tap, pinfo, tap_data);
switch(type){
- case URB_CONTROL_INPUT:
+ case URB_BULK:
+ {
+ proto_item *item;
+
+ item=proto_tree_add_uint(tree, hf_usb_bInterfaceClass, tvb, 0, 0, usb_conv_info->interfaceClass);
+ PROTO_ITEM_SET_GENERATED(item);
+
+ /* Skip setup/isochronous header - it's not applicable */
+ offset += 8;
+
+ /*
+ * If this has a 64-byte header, process the extra 16 bytes of
+ * pseudo-header information.
+ */
+ if (header_len_64_bytes)
+ offset = dissect_linux_usb_pseudo_header_ext(tvb, offset, pinfo, tree);
+
+ if(tvb_reported_length_remaining(tvb, offset)){
+ tvbuff_t *next_tvb;
+
+ pinfo->usb_conv_info=usb_conv_info;
+ next_tvb=tvb_new_subset_remaining(tvb, offset);
+ if (try_heuristics && dissector_try_heuristic(heur_bulk_subdissector_list, next_tvb, pinfo, parent)) {
+ return;
+ }
+ else if(dissector_try_uint(usb_bulk_dissector_table, usb_conv_info->interfaceClass, next_tvb, pinfo, parent)){
+ return;
+ }
+ }
+ }
+ break;
+ case URB_CONTROL:
{
const usb_setup_dissector_table_t *tmp;
usb_setup_dissector dissector;
proto_item *ti = NULL;
proto_tree *setup_tree = NULL;
- guint8 requesttype, request;
+ int type_2;
+
+ ti=proto_tree_add_uint(tree, hf_usb_bInterfaceClass, tvb, offset, 0, usb_conv_info->interfaceClass);
+ PROTO_ITEM_SET_GENERATED(ti);
if(is_request){
- /* this is a request */
- ti = proto_tree_add_protocol_format(tree, proto_usb, tvb, offset, sizeof(usb_setup_t), "URB setup");
- setup_tree = proto_item_add_subtree(ti, usb_setup_hdr);
- requesttype=tvb_get_guint8(tvb, offset);
- offset=dissect_usb_setup_bmrequesttype(setup_tree, tvb, offset);
+ if (setup_flag == 0) {
+ tvbuff_t *next_tvb;
+
+ /* this is a request */
+
+ /* Dissect the setup header - it's applicable */
+
+ ti = proto_tree_add_protocol_format(tree, proto_usb, tvb, offset, 8, "URB setup");
+ setup_tree = proto_item_add_subtree(ti, usb_setup_hdr);
+ usb_trans_info->requesttype=tvb_get_guint8(tvb, offset);
+ offset=dissect_usb_bmrequesttype(setup_tree, tvb, offset, &type_2);
+
+
+ /* read the request code and spawn off to a class specific
+ * dissector if found
+ */
+ usb_trans_info->request=tvb_get_guint8(tvb, offset);
+
+ switch (type_2) {
+
+ case RQT_SETUP_TYPE_STANDARD:
+ /*
+ * This is a standard request which is managed by this
+ * dissector
+ */
+ proto_tree_add_item(setup_tree, hf_usb_request, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_add_fstr(pinfo->cinfo, COL_INFO, "%s Request",
+ val_to_str(usb_trans_info->request, setup_request_names_vals, "Unknown type %x"));
+ }
+
+ dissector=NULL;
+ for(tmp=setup_request_dissectors;tmp->dissector;tmp++){
+ if(tmp->request==usb_trans_info->request){
+ dissector=tmp->dissector;
+ break;
+ }
+ }
+
+ if(dissector){
+ offset=dissector(pinfo, setup_tree, tvb, offset, usb_trans_info, usb_conv_info);
+ } else {
+ proto_tree_add_item(setup_tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ }
+ break;
+
+ case RQT_SETUP_TYPE_CLASS:
+ /* Try to find a class specific dissector */
+ next_tvb=tvb_new_subset_remaining(tvb, offset);
+ if (try_heuristics && dissector_try_heuristic(heur_control_subdissector_list, next_tvb, pinfo, tree)) {
+ return;
+ }
+ if(dissector_try_uint(usb_control_dissector_table, usb_conv_info->interfaceClass, next_tvb, pinfo, tree)){
+ return;
+ }
+ /* Else no class dissector, just display generic fields */
+ proto_tree_add_item(setup_tree, hf_usb_request_unknown_class, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+ proto_tree_add_item(setup_tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ break;
+
+ default:
+ proto_tree_add_item(setup_tree, hf_usb_request_unknown_class, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+ proto_tree_add_item(setup_tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(setup_tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ }
+ } else {
+ /* Skip setup/isochronous header - it's not applicable */
+ offset += 8;
+ }
- request=tvb_get_guint8(tvb, offset);
- proto_tree_add_item(setup_tree, hf_usb_request, tvb, offset, 1, FALSE);
- offset += 1;
+ /*
+ * If this has a 64-byte header, process the extra 16 bytes of
+ * pseudo-header information.
+ */
+ if (header_len_64_bytes)
+ offset = dissect_linux_usb_pseudo_header_ext(tvb, offset, pinfo, tree);
+ if (tvb_reported_length_remaining(tvb, offset) != 0) {
+ tvbuff_t *next_tvb;
- dissector=NULL;
- for(tmp=setup_dissectors;tmp->dissector;tmp++){
- if(tmp->request==request){
- dissector=tmp->dissector;
- break;
+ next_tvb = tvb_new_subset_remaining(tvb, offset);
+ if (try_heuristics && dissector_try_heuristic(heur_control_subdissector_list, next_tvb, pinfo, tree)) {
+ return;
+ }
+ if(dissector_try_uint(usb_control_dissector_table, usb_conv_info->interfaceClass, next_tvb, pinfo, tree)){
+ return;
}
}
-
- if(dissector){
- dissector(pinfo, setup_tree, tvb, offset, requesttype);
- offset+=6;
+ } else {
+ tvbuff_t *next_tvb;
+
+ /* this is a response */
+
+ /* Skip setup header - it's never applicable for responses */
+ offset += 8;
+
+ /*
+ * If this has a 64-byte header, process the extra 16 bytes of
+ * pseudo-header information.
+ */
+ if (header_len_64_bytes)
+ offset = dissect_linux_usb_pseudo_header_ext(tvb, offset, pinfo, tree);
+
+ if(usb_trans_info){
+ /* Try to find a class specific dissector */
+ next_tvb=tvb_new_subset_remaining(tvb, offset);
+ if (try_heuristics && dissector_try_heuristic(heur_control_subdissector_list, next_tvb, pinfo, tree)) {
+ return;
+ }
+ if(dissector_try_uint(usb_control_dissector_table, usb_conv_info->interfaceClass, next_tvb, pinfo, tree)){
+ return;
+ }
+
+ type_2 = USB_TYPE(usb_trans_info->requesttype);
+ switch (type_2) {
+
+ case RQT_SETUP_TYPE_STANDARD:
+ /*
+ * This is a standard response which is managed by this
+ * dissector
+ */
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_add_fstr(pinfo->cinfo, COL_INFO, "%s Response",
+ val_to_str(usb_conv_info->usb_trans_info->request, setup_request_names_vals, "Unknown type %x"));
+ }
+
+ dissector=NULL;
+ for(tmp=setup_response_dissectors;tmp->dissector;tmp++){
+ if(tmp->request==usb_conv_info->usb_trans_info->request){
+ dissector=tmp->dissector;
+ break;
+ }
+ }
+
+ if(dissector){
+ offset = dissector(pinfo, tree, tvb, offset, usb_conv_info->usb_trans_info, usb_conv_info);
+ } else {
+ if (tvb_reported_length_remaining(tvb, offset) != 0) {
+ proto_tree_add_text(tree, tvb, offset, -1, "CONTROL response data");
+ offset += tvb_length_remaining(tvb, offset);
+ }
+ }
+ break;
+ default:
+ if (tvb_reported_length_remaining(tvb, offset) != 0) {
+ proto_tree_add_text(tree, tvb, offset, -1, "CONTROL response data");
+ offset += tvb_length_remaining(tvb, offset);
+ }
+ break;
+ }
} else {
- proto_tree_add_item(setup_tree, hf_usb_value, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(setup_tree, hf_usb_index, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(setup_tree, hf_usb_length, tvb, offset, 2, FALSE);
- offset += 2;
+ /* no matching request available */
+ if (tvb_reported_length_remaining(tvb, offset) != 0) {
+ proto_tree_add_text(tree, tvb, offset, -1, "CONTROL response data");
+ offset += tvb_length_remaining(tvb, offset);
+ }
}
+ }
+ }
+ break;
+ case URB_ISOCHRONOUS:
+ {
+ guint32 iso_numdesc = 0;
+ proto_item *ti = NULL;
+ ti=proto_tree_add_uint(tree, hf_usb_bInterfaceClass, tvb, offset, 0, usb_conv_info->interfaceClass);
+ PROTO_ITEM_SET_GENERATED(ti);
+
+ /* All fields which belong to Linux usbmon headers are in host-endian
+ * byte order. The fields coming from the USB communication are in little
+ * endian format (see usb_20.pdf, chapter 8.1 Byte/Bit ordering).
+ *
+ * When a capture file is transfered to a host with different endianness
+ * than packet was captured then the necessary swapping happens in
+ * wiretap/pcap-common.c, pcap_process_linux_usb_pseudoheader().
+ */
+
+ if (setup_flag == 0) {
+ proto_tree *setup_tree = NULL;
+ int type_2;
+
+ /* Dissect the setup header - it's applicable */
+
+ ti = proto_tree_add_protocol_format(tree, proto_usb, tvb, offset, 8, "URB setup");
+ setup_tree = proto_item_add_subtree(ti, usb_setup_hdr);
+
+ offset = dissect_usb_bmrequesttype(setup_tree, tvb, offset, &type_2);
+ proto_tree_add_item(setup_tree, hf_usb_request, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+ proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
} else {
- /* this is a response */
+
+ /* Process ISO related fields (usbmon_packet.iso). The fields are
+ * in host endian byte order so use tvb_memcopy() and
+ * proto_tree_add_uint() pair.
+ */
+ guint32 val32;
+
+ tvb_memcpy(tvb, (guint8 *)&val32, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_iso_error_count, tvb, offset, 4, val32);
+ offset += 4;
+
+ tvb_memcpy(tvb, (guint8 *)&iso_numdesc, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_iso_numdesc, tvb, offset, 4, iso_numdesc);
+ offset += 4;
+ }
+
+ /*
+ * If this has a 64-byte header, process the extra 16 bytes of
+ * pseudo-header information.
+ */
+ if (header_len_64_bytes) {
+ guint32 ndesc;
+
+ offset += 4; /* interval */
+ offset += 4; /* start_frame */
+ offset += 4; /* copy of URB's transfer flags */
+
+ tvb_memcpy(tvb, (guint8 *)&ndesc, offset, 4);
+ offset += 4;
+
+ }
+
+ if (setup_flag != 0) {
+ proto_tree *urb_tree = NULL;
+ guint32 i;
+ unsigned int data_base;
+ guint32 iso_status;
+ guint32 iso_off;
+ guint32 iso_len;
+ guint32 iso_pad;
+
+ data_base = offset + iso_numdesc * 16;
+ urb_tree = tree;
+ for (i = 0; i != iso_numdesc; i++) {
+ if (parent) {
+ proto_item *ti = NULL;
+ ti = proto_tree_add_protocol_format(urb_tree, proto_usb, tvb, offset,
+ 16, "USB isodesc %u", i);
+ tree = proto_item_add_subtree(ti, usb_isodesc);
+ }
+
+ /* Add ISO descriptor fields which are stored in host
+ * endian byte order so use tvb_memcopy() and
+ * proto_tree_add_uint()/proto_tree_add_int() pair.
+ */
+ tvb_memcpy(tvb, (guint8 *)&iso_status, offset, 4);
+ proto_tree_add_int(tree, hf_usb_iso_status, tvb, offset, 4, iso_status);
+ offset += 4;
+
+ tvb_memcpy(tvb, (guint8 *)&iso_off, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_iso_off, tvb, offset, 4, iso_off);
+ offset += 4;
+
+ tvb_memcpy(tvb, (guint8 *)&iso_len, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_iso_len, tvb, offset, 4, iso_len);
+ offset += 4;
+
+ /* When the ISO status is OK and there is ISO data and this ISO data is
+ * fully captured then show this data.
+ */
+ if (!iso_status && iso_len && data_base + iso_off + iso_len <= tvb_length(tvb))
+ proto_tree_add_item(tree, hf_usb_iso_data, tvb, data_base + iso_off, iso_len, ENC_NA);
+
+ tvb_memcpy(tvb, (guint8 *)&iso_pad, offset, 4);
+ proto_tree_add_uint(tree, hf_usb_iso_pad, tvb, offset, 4, iso_pad);
+ offset += 4;
+ }
+ tree = urb_tree;
}
- proto_tree_add_item(tree, hf_usb_data, tvb,
- offset, tvb_length_remaining(tvb, offset), FALSE);
- return;
+
}
break;
+
default:
/* dont know */
- }
-
+ if (setup_flag == 0) {
+ proto_item *ti = NULL;
+ proto_tree *setup_tree = NULL;
+ int type_2;
- if (setup) {
- proto_item *ti = NULL;
- proto_tree *setup_tree = NULL;
- guint8 requesttype, request;
+ /* Dissect the setup header - it's applicable */
- ti = proto_tree_add_protocol_format(tree, proto_usb, tvb, offset, sizeof(usb_setup_t), "URB setup");
- setup_tree = proto_item_add_subtree(ti, usb_setup_hdr);
+ ti = proto_tree_add_protocol_format(tree, proto_usb, tvb, offset, 8, "URB setup");
+ setup_tree = proto_item_add_subtree(ti, usb_setup_hdr);
+ offset=dissect_usb_bmrequesttype(setup_tree, tvb, offset, &type_2);
+ proto_tree_add_item(setup_tree, hf_usb_request, tvb, offset, 1, ENC_LITTLE_ENDIAN);
+ offset++;
+ proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ } else {
+ /* Skip setup/isochronous header - it's not applicable */
+ offset += 8;
+ }
- requesttype=tvb_get_guint8(tvb, offset);
- offset=dissect_usb_setup_bmrequesttype(setup_tree, tvb, offset);
+ /*
+ * If this has a 64-byte header, process the extra 16 bytes of
+ * pseudo-header information.
+ */
+ if (header_len_64_bytes)
+ offset = dissect_linux_usb_pseudo_header_ext(tvb, offset, pinfo, tree);
- request=tvb_get_guint8(tvb, offset);
- proto_tree_add_item(setup_tree, hf_usb_request, tvb, offset, 1, FALSE);
- offset += 1;
+ break;
+ }
- proto_tree_add_item(tree, hf_usb_value, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(tree, hf_usb_index, tvb, offset, 2, FALSE);
- offset += 2;
- proto_tree_add_item(tree, hf_usb_length, tvb, offset, 2, FALSE);
- offset += 2;
+ if (tvb_reported_length_remaining(tvb, offset) != 0) {
+ /* There is leftover capture data to add (padding?) */
+ proto_tree_add_item(tree, hf_usb_capdata, tvb, offset, -1, ENC_NA);
}
-
- proto_tree_add_item(tree, hf_usb_data, tvb,
- offset, tvb_length_remaining(tvb, offset), FALSE);
+}
+
+static void
+dissect_linux_usb(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent)
+{
+ dissect_linux_usb_common(tvb, pinfo, parent, FALSE);
+}
+
+static void
+dissect_linux_usb_mmapped(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent)
+{
+ dissect_linux_usb_common(tvb, pinfo, parent, TRUE);
}
void
proto_register_usb(void)
{
+ module_t *usb_module;
static hf_register_info hf[] = {
-
+
+ /* USB packet pseudoheader members */
+ { &hf_usb_urb_id,
+ { "URB id", "usb.urb_id", FT_UINT64, BASE_HEX,
+ NULL, 0x0,
+ NULL, HFILL }},
+
{ &hf_usb_urb_type,
- { "URB type", "usb.urb_type", FT_UINT32, BASE_DEC,
- VALS(usb_urb_type_vals), 0x0,
- "URB type", HFILL }},
+ { "URB type", "usb.urb_type", FT_UINT8, BASE_DEC,
+ VALS(usb_urb_type_vals), 0x0,
+ NULL, HFILL }},
- { &hf_usb_device_address,
- { "Device", "usb.device_address", FT_UINT32, BASE_DEC, NULL, 0x0,
- "USB device address", HFILL }},
+ { &hf_usb_transfer_type,
+ { "URB transfer type", "usb.transfer_type", FT_UINT8, BASE_HEX,
+ VALS(usb_transfer_type_vals), 0x0,
+ NULL, HFILL }},
{ &hf_usb_endpoint_number,
- { "Endpoint", "usb.endpoint_number", FT_UINT32, BASE_HEX, NULL, 0x0,
- "usb endpoint number", HFILL }},
+ { "Endpoint", "usb.endpoint_number", FT_UINT8, BASE_HEX, NULL, 0x0,
+ "USB endpoint number", HFILL }},
- { &hf_usb_src_endpoint_number,
- { "Src Endpoint", "usb.src.endpoint", FT_UINT32, BASE_HEX, NULL, 0x0,
- "src usb endpoint number", HFILL }},
+ { &hf_usb_endpoint_direction,
+ { "Direction", "usb.endpoint_number.direction", FT_UINT8, BASE_DEC,
+ VALS(usb_endpoint_direction_vals), 0x80,
+ "USB endpoint direction", HFILL }},
- { &hf_usb_dst_endpoint_number,
- { "Dst Endpoint", "usb.dst.endpoint", FT_UINT32, BASE_HEX, NULL, 0x0,
- "dst usb endpoint number", HFILL }},
+ { &hf_usb_endpoint_number_value,
+ { "Endpoint value", "usb.endpoint_number.endpoint", FT_UINT8, BASE_DEC,
+ NULL, 0x7F,
+ "USB endpoint value", HFILL }},
- { &hf_usb_setup_bmRequestType,
- { "bmRequestType", "usb.setup.bmRequestType", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { &hf_usb_device_address,
+ { "Device", "usb.device_address", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "USB device address", HFILL }},
+
+ { &hf_usb_bus_id,
+ { "URB bus id", "usb.bus_id", FT_UINT16, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_setup_flag,
+ { "Device setup request", "usb.setup_flag", FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "USB device setup request is relevant (0) or not", HFILL }},
+
+ { &hf_usb_data_flag,
+ { "Data", "usb.data_flag", FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ "USB data is present (0) or not", HFILL }},
+
+ { &hf_usb_urb_ts_sec,
+ { "URB sec", "usb.urb_ts_sec", FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_urb_ts_usec,
+ { "URB usec", "usb.urb_ts_usec", FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_urb_status,
+ { "URB status", "usb.urb_status", FT_INT32, BASE_DEC,
+ VALS(usb_urb_status_vals), 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_urb_len,
+ { "URB length [bytes]", "usb.urb_len", FT_UINT32, BASE_DEC, NULL, 0x0,
+ "URB length in bytes", HFILL }},
+
+ { &hf_usb_data_len,
+ { "Data length [bytes]", "usb.data_len", FT_UINT32, BASE_DEC, NULL, 0x0,
+ "URB data length in bytes", HFILL }},
+
+ /* Fields from usb20.pdf, Table 9-2 'Format of Setup Data' */
+ { &hf_usb_bmRequestType,
+ { "bmRequestType", "usb.bmRequestType", FT_UINT8, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
{ &hf_usb_request,
- { "bRequest", "usb.setup.bRequest", FT_UINT8, BASE_HEX, VALS(setup_request_names_vals), 0x0,
- "", HFILL }},
+ { "bRequest", "usb.setup.bRequest", FT_UINT8, BASE_DEC, VALS(setup_request_names_vals), 0x0,
+ NULL, HFILL }},
+
+ /* Same as hf_usb_request but no descriptive text */
+ { &hf_usb_request_unknown_class,
+ { "bRequest", "usb.setup.bRequest", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
{ &hf_usb_value,
- { "wValue", "usb.setup.wValue", FT_UINT16, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "wValue", "usb.setup.wValue", FT_UINT16, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
{ &hf_usb_index,
- { "wIndex", "usb.setup.wIndex", FT_UINT16, BASE_DEC, NULL, 0x0,
- "", HFILL }},
+ { "wIndex", "usb.setup.wIndex", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
{ &hf_usb_length,
- { "wLength", "usb.setup.wLength", FT_UINT16, BASE_DEC, NULL, 0x0,
- "", HFILL }},
-
+ { "wLength", "usb.setup.wLength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_wFeatureSelector,
+ { "wFeatureSelector", "usb.setup.wFeatureSelector", FT_UINT16, BASE_DEC,
+ VALS(usb_feature_selector_vals), 0x0, NULL, HFILL }},
+
+ { &hf_usb_wInterface,
+ { "wInterface", "usb.setup.wInterface", FT_UINT16, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_wStatus,
+ { "wStatus", "usb.setup.wStatus", FT_UINT16, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_wFrameNumber,
+ { "wFrameNumber", "usb.setup.wFrameNumber", FT_UINT16, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ /* --------------------------------- */
+ { &hf_usb_iso_error_count, /* host endian byte order */
+ { "ISO error count", "usb.iso.error_count", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+
+ { &hf_usb_iso_numdesc, /* host endian byte order */
+ { "Number of ISO descriptors", "usb.iso.numdesc", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+
+ /* fields of struct mon_bin_isodesc from linux/drivers/usb/mon/mon_bin.c */
+ { &hf_usb_iso_status, /* host endian byte order */
+ { "Status", "usb.iso.iso_status", FT_INT32, BASE_DEC,
+ VALS(usb_urb_status_vals), 0x0,
+ "ISO descriptor status", HFILL }},
+
+ { &hf_usb_iso_off, /* host endian byte order */
+ { "Offset [bytes]", "usb.iso.iso_off", FT_UINT32, BASE_DEC, NULL, 0x0,
+ "ISO data offset in bytes starting from the end of the last ISO descriptor", HFILL }},
+
+ { &hf_usb_iso_len, /* host endian byte order */
+ { "Length [bytes]", "usb.iso.iso_len", FT_UINT32, BASE_DEC, NULL, 0x0,
+ "ISO data length in bytes", HFILL }},
+
+ { &hf_usb_iso_pad, /* host endian byte order */
+ { "Padding", "usb.iso._pad", FT_UINT32, BASE_HEX, NULL, 0x0,
+ "Padding field of ISO descriptor structure", HFILL }},
+
+ { &hf_usb_iso_data,
+ {"ISO Data", "usb.iso.data",
+ FT_BYTES, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* --------------------------------- */
{ &hf_usb_data,
- {"Application Data", "usb.data",
- FT_BYTES, BASE_HEX, NULL, 0x0,
- "Payload is application data", HFILL }},
-
- { &hf_usb_setup_bmRequestType_direction,
- { "Direction", "usb.setup.bmRequestType.direction", FT_BOOLEAN, 8,
- TFS(&tfs_bmrequesttype_direction), 0x80, "", HFILL }},
-
- { &hf_usb_setup_bmRequestType_type,
- { "Type", "usb.setup.bmRequestType.type", FT_UINT8, BASE_HEX,
- VALS(bmrequesttype_type_vals), 0x70, "", HFILL }},
-
- { &hf_usb_setup_bmRequestType_recipient,
- { "Recipient", "usb.setup.bmRequestType.recipient", FT_UINT8, BASE_HEX,
- VALS(bmrequesttype_recipient_vals), 0x0f, "", HFILL }},
-
- { &hf_usb_descriptor_type,
- { "Descriptor Type", "usb.DescriptorType", FT_UINT8, BASE_HEX,
- VALS(descriptor_type_vals), 0x0, "", HFILL }},
+ {"Application Data", "usb.data",
+ FT_BYTES, BASE_NONE, NULL, 0x0,
+ "Payload is application data", HFILL }},
+
+ { &hf_usb_capdata,
+ {"Leftover Capture Data", "usb.capdata",
+ FT_BYTES, BASE_NONE, NULL, 0x0,
+ "Padding added by the USB capture system", HFILL }},
+
+ { &hf_usb_bmRequestType_direction,
+ { "Direction", "usb.bmRequestType.direction", FT_BOOLEAN, 8,
+ TFS(&tfs_bmrequesttype_direction), USB_DIR_IN, NULL, HFILL }},
+
+ { &hf_usb_bmRequestType_type,
+ { "Type", "usb.bmRequestType.type", FT_UINT8, BASE_HEX,
+ VALS(bmrequesttype_type_vals), USB_TYPE_MASK, NULL, HFILL }},
+
+ { &hf_usb_bmRequestType_recipient,
+ { "Recipient", "usb.bmRequestType.recipient", FT_UINT8, BASE_HEX,
+ VALS(bmrequesttype_recipient_vals), 0x1f, NULL, HFILL }},
+
+ { &hf_usb_bDescriptorType,
+ { "bDescriptorType", "usb.bDescriptorType", FT_UINT8, BASE_DEC,
+ VALS(descriptor_type_vals), 0x0, NULL, HFILL }},
{ &hf_usb_descriptor_index,
- { "Descriptor Index", "usb.DescriptorIndex", FT_UINT8, BASE_HEX,
- NULL, 0x0, "", HFILL }},
+ { "Descriptor Index", "usb.DescriptorIndex", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
{ &hf_usb_language_id,
- { "Language Id", "usb.LanguageId", FT_UINT16, BASE_HEX,
- NULL, 0x0, "", HFILL }},
+ { "Language Id", "usb.LanguageId", FT_UINT16, BASE_HEX|BASE_EXT_STRING,
+ &usb_langid_vals_ext, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bLength,
+ { "bLength", "usb.bLength", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bcdUSB,
+ { "bcdUSB", "usb.bcdUSB", FT_UINT16, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bDeviceClass,
+ { "bDeviceClass", "usb.bDeviceClass", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bDeviceSubClass,
+ { "bDeviceSubClass", "usb.bDeviceSubClass", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bDeviceProtocol,
+ { "bDeviceProtocol", "usb.bDeviceProtocol", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bMaxPacketSize0,
+ { "bMaxPacketSize0", "usb.bMaxPacketSize0", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_idVendor,
+ { "idVendor", "usb.idVendor", FT_UINT16, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_idProduct,
+ { "idProduct", "usb.idProduct", FT_UINT16, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bcdDevice,
+ { "bcdDevice", "usb.bcdDevice", FT_UINT16, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_iManufacturer,
+ { "iManufacturer", "usb.iManufacturer", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_iProduct,
+ { "iProduct", "usb.iProduct", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_iSerialNumber,
+ { "iSerialNumber", "usb.iSerialNumber", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bNumConfigurations,
+ { "bNumConfigurations", "usb.bNumConfigurations", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_wLANGID,
+ { "wLANGID", "usb.wLANGID", FT_UINT16, BASE_HEX|BASE_EXT_STRING,
+ &usb_langid_vals_ext, 0x0, NULL, HFILL }},
+ { &hf_usb_bString,
+ { "bString", "usb.bString", FT_STRING, BASE_NONE,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bInterfaceNumber,
+ { "bInterfaceNumber", "usb.bInterfaceNumber", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bAlternateSetting,
+ { "bAlternateSetting","usb.bAlternateSetting", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bNumEndpoints,
+ { "bNumEndpoints","usb.bNumEndpoints", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bInterfaceClass,
+ { "bInterfaceClass", "usb.bInterfaceClass", FT_UINT8, BASE_HEX,
+ VALS(usb_interfaceclass_vals), 0x0, NULL, HFILL }},
+
+ { &hf_usb_bInterfaceSubClass,
+ { "bInterfaceSubClass", "usb.bInterfaceSubClass", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bInterfaceProtocol,
+ { "bInterfaceProtocol", "usb.bInterfaceProtocol", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_iInterface,
+ { "iInterface", "usb.iInterface", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAddress,
+ { "bEndpointAddress", "usb.bEndpointAddress", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_configuration_bmAttributes,
+ { "Configuration bmAttributes", "usb.configuration.bmAttributes", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bmAttributes,
+ { "bmAttributes", "usb.bmAttributes", FT_UINT8, BASE_HEX,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAttributeTransfer,
+ { "Transfertype", "usb.bmAttributes.transfer", FT_UINT8, BASE_HEX,
+ VALS(usb_bmAttributes_transfer_vals), 0x03, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAttributeSynchonisation,
+ { "Synchronisationtype", "usb.bmAttributes.sync", FT_UINT8, BASE_HEX,
+ VALS(usb_bmAttributes_sync_vals), 0x0c, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAttributeBehaviour,
+ { "Behaviourtype", "usb.bmAttributes.behaviour", FT_UINT8, BASE_HEX,
+ VALS(usb_bmAttributes_behaviour_vals), 0x30, NULL, HFILL }},
+
+ { &hf_usb_wMaxPacketSize,
+ { "wMaxPacketSize", "usb.wMaxPacketSize", FT_UINT16, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bInterval,
+ { "bInterval", "usb.bInterval", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_wTotalLength,
+ { "wTotalLength", "usb.wTotalLength", FT_UINT16, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bNumInterfaces,
+ { "bNumInterfaces", "usb.bNumInterfaces", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bConfigurationValue,
+ { "bConfigurationValue", "usb.bConfigurationValue", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_iConfiguration,
+ { "iConfiguration", "usb.iConfiguration", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_bMaxPower,
+ { "bMaxPower", "usb.bMaxPower", FT_UINT8, BASE_DEC,
+ NULL, 0x0, NULL, HFILL }},
+
+ { &hf_usb_configuration_legacy10buspowered,
+ { "Must be 1", "usb.configuration.legacy10buspowered", FT_BOOLEAN, 8,
+ TFS(&tfs_mustbeone), 0x80, "Legacy USB 1.0 bus powered", HFILL }},
+
+ { &hf_usb_configuration_selfpowered,
+ { "Self-Powered", "usb.configuration.selfpowered", FT_BOOLEAN, 8,
+ TFS(&tfs_selfpowered), 0x40, NULL, HFILL }},
+
+ { &hf_usb_configuration_remotewakeup,
+ { "Remote Wakeup", "usb.configuration.remotewakeup", FT_BOOLEAN, 8,
+ TFS(&tfs_remotewakeup), 0x20, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAddress_number,
+ { "Endpoint Number", "usb.bEndpointAddress.number", FT_UINT8, BASE_HEX,
+ NULL, 0x0f, NULL, HFILL }},
+
+ { &hf_usb_bEndpointAddress_direction,
+ { "Direction", "usb.bEndpointAddress.direction", FT_BOOLEAN, 8,
+ TFS(&tfs_endpoint_direction), 0x80, NULL, HFILL }},
+
+ { &hf_usb_request_in,
+ { "Request in", "usb.request_in", FT_FRAMENUM, BASE_NONE,
+ NULL, 0, "The request to this packet is in this packet", HFILL }},
+
+ { &hf_usb_time,
+ { "Time from request", "usb.time", FT_RELATIVE_TIME, BASE_NONE,
+ NULL, 0, "Time between Request and Response for USB cmds", HFILL }},
+
+ { &hf_usb_response_in,
+ { "Response in", "usb.response_in", FT_FRAMENUM, BASE_NONE,
+ NULL, 0, "The response to this packet is in this packet", HFILL }},
};
-
+
static gint *usb_subtrees[] = {
- &usb_hdr,
- &usb_setup_hdr,
- &ett_usb_setup_bmrequesttype
+ &usb_hdr,
+ &usb_setup_hdr,
+ &usb_isodesc,
+ &ett_usb_endpoint,
+ &ett_usb_setup_bmrequesttype,
+ &ett_descriptor_device,
+ &ett_configuration_bmAttributes,
+ &ett_configuration_bEndpointAddress,
+ &ett_endpoint_bmAttributes
};
-
+
proto_usb = proto_register_protocol("USB", "USB", "usb");
proto_register_field_array(proto_usb, hf, array_length(hf));
proto_register_subtree_array(usb_subtrees, array_length(usb_subtrees));
-
- register_dissector("eth", dissect_usb, proto_usb);
+ register_dissector("usb", dissect_linux_usb, proto_usb);
+
+ usb_bulk_dissector_table = register_dissector_table("usb.bulk",
+ "USB bulk endpoint", FT_UINT8, BASE_DEC);
+ register_heur_dissector_list("usb.bulk", &heur_bulk_subdissector_list);
+ usb_control_dissector_table = register_dissector_table("usb.control",
+ "USB control endpoint", FT_UINT8, BASE_DEC);
+ register_heur_dissector_list("usb.control", &heur_control_subdissector_list);
+
+ usb_module = prefs_register_protocol(proto_usb, NULL);
+ prefs_register_bool_preference(usb_module, "try_heuristics",
+ "Try heuristic sub-dissectors",
+ "Try to decode a packet using a heuristic sub-dissector before "
+ "attempting to dissect the packet using the \"usb.bulk\" or "
+ "\"usb.control\" dissector tables.", &try_heuristics);
+
+ usb_tap=register_tap("usb");
}
void
proto_reg_handoff_usb(void)
{
- dissector_handle_t usb_handle;
- usb_handle = create_dissector_handle(dissect_usb, proto_usb);
+ dissector_handle_t linux_usb_handle, linux_usb_mmapped_handle;
+
+ linux_usb_handle = create_dissector_handle(dissect_linux_usb, proto_usb);
+ linux_usb_mmapped_handle = create_dissector_handle(dissect_linux_usb_mmapped,
+ proto_usb);
- dissector_add("wtap_encap", WTAP_ENCAP_USB, usb_handle);
+ dissector_add_uint("wtap_encap", WTAP_ENCAP_USB_LINUX, linux_usb_handle);
+ dissector_add_uint("wtap_encap", WTAP_ENCAP_USB_LINUX_MMAPPED, linux_usb_mmapped_handle);
}
git.samba.org / obnox / wireshark / wip.git / blobdiff