/* packet-ptpip.c * Routines for PTP/IP (Picture Transfer Protocol) packet dissection * 0xBismarck 2013 * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ /** * References: * [1] CIPA DC-X005-2005 - PTP-IP * [2] BS ISO 15740:2008 - Photography Electronic still picture imaging - Picture transfer protocol (PTP) * for digital still photography devices * [3] gPhoto's Reversed Engineered PTP/IP documentation - http://gphoto.sourceforge.net/doc/ptpip.php * [4] gPhoto's ptp2 header file https://gphoto.svn.sourceforge.net/svnroot/gphoto/trunk/libgphoto2/camlibs/ptp2/ptp.h * * @todo: This is being written as 1 dissector when in reality there is PTP/IP and PTP. * Future work should include splitting this into 2 so that the PTP layer may be used again for PTP/USB. */ #include "config.h" #include #include #include "packet-ptpip.h" /* Define */ #define PTPIP_PORT 15740 /* [1] Section 2.2.3.1 */ #define PTPIP_GUID_SIZE 16 /* [1] Section 2.3.1 */ #define PTPIP_MAX_PARAM_COUNT 5 /* [1] Section 2.3.6 */ /* trees */ static int ett_ptpIP; static int ett_ptpIP_hdr; /* PTP/IP Fields */ static int proto_ptpIP; static int hf_ptpIP_len; /* [1] Section 2.3 */ static int hf_ptpIP_pktType; /* [1] Section 2.3 */ static int hf_ptpIP_guid; static int hf_ptpIP_name; static int hf_ptpIP_version; static int hf_ptpIP_connectionNumber; static int hf_ptpIP_dataPhaseInfo; /* note: separating the fields to make it easier to divide this code later. */ /* PTP Fields */ /* picking hf_ptp for now. Might need to change later for namespace issues with Precision Time Protocol. */ static int hf_ptp_opCode; static int hf_ptp_vendor_opCode; static int hf_ptp_respCode; static int hf_ptp_eventCode; static int hf_ptp_transactionID; static int hf_ptp_totalDataLength; static int hf_ptp_opCode_param_sessionID; /* function declarations */ static int dissect_ptpIP (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_); static void dissect_ptpIP_init_command_request (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_init_command_ack (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_init_event_request (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_init_event_ack ( packet_info *pinfo); static void dissect_ptpIP_operation_request (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_operation_response (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_start_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_end_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_event (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_unicode_name (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_protocol_version (tvbuff_t *tvb, proto_tree *tree, uint16_t *offset); static void dissect_ptpIP_guid (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset); void proto_register_ptpip( void ); void proto_reg_handoff_ptpIP( void ); static dissector_handle_t ptpIP_handle; typedef enum { PTP_VENDOR_UNKNOWN = 0, PTP_VENDOR_EASTMAN_KODAK = 1, PTP_VENDOR_CANON = 2, PTP_VENDOR_NIKON = 3, PTP_VENDOR_CASIO = 4, PTP_VENDOR_MTP = 5, PTP_VENDOR_OLYMPUS = 6 } ptp_vendors; static const enum_val_t pref_hsp_role[] = { { "Unknown", "Unknown vendor", PTP_VENDOR_UNKNOWN }, { "Eastman Kodak", "Eastman Kodak", PTP_VENDOR_EASTMAN_KODAK}, { "Canon", "Canon", PTP_VENDOR_CANON }, { "Nikon", "Nikon", PTP_VENDOR_NIKON }, { "Casio", "Casio EX-F1", PTP_VENDOR_CASIO }, { "Microsoft / MTP","Microsoft / MTP", PTP_VENDOR_MTP }, { "Olympus", "Olympus E series", PTP_VENDOR_OLYMPUS }, { NULL, NULL, 0 } }; /* Vendor preference for deciphering opcodes */ static int pref_vendor; static const value_string ptp_opcode_names[] = { { PTP_OC_GetDeviceInfo, "GetDeviceInfo" }, { PTP_OC_OpenSession, "OpenSession" }, { PTP_OC_CloseSession, "CloseSession" }, { PTP_OC_GetStorageIDs, "GetStorageIDs" }, { PTP_OC_GetStorageInfo, "GetStorageInfo" }, { PTP_OC_GetNumObjects, "GetNumObjects" }, { PTP_OC_GetObjectHandles, "GetObjectHandles" }, { PTP_OC_GetObjectInfo, "GetObjectInfo" }, { PTP_OC_GetObject, "GetObject" }, { PTP_OC_DeleteObject, "DeleteObject" }, { PTP_OC_SendObjectInfo, "SendObjectInfo" }, { PTP_OC_SendObject, "SendObject" }, { PTP_OC_InitiateCapture, "InitiateCapture" }, { PTP_OC_FormatStore, "FormatStore" }, { PTP_OC_ResetDevice, "ResetDevice" }, { PTP_OC_SelfTest, "SelfTest" }, { PTP_OC_SetObjectProtection, "SetObjectProtection" }, { PTP_OC_PowerDown, "PowerDown" }, { PTP_OC_GetDevicePropDesc, "GetDevicePropDesc" }, { PTP_OC_GetDevicePropValue, "GetDevicePropValue" }, { PTP_OC_SetDevicePropValue, "SetDevicePropValue" }, { PTP_OC_ResetDevicePropValue, "ResetDevicePropValue" }, { PTP_OC_TerminateOpenCapture, "TerminateOpenCapture" }, { PTP_OC_MoveObject, "MoveObject" }, { PTP_OC_CopyObject, "CopyObject" }, { PTP_OC_GetPartialObject, "GetPartialObject" }, { PTP_OC_InitiateOpenCapture, "InitiateOpenCapture" }, { PTP_OC_StartEnumHandles, "StartEnumHandles" }, { PTP_OC_EnumHandles, "EnumHandles" }, { PTP_OC_StopEnumHandles, "StopEnumHandles" }, { PTP_OC_GetVendorExtensionMaps, "GetVendorExtensionMaps" }, { PTP_OC_GetVendorDeviceInfo, "GetVendorDeviceInfo" }, { PTP_OC_GetResizedImageObject, "GetResizedImageObject" }, { PTP_OC_GetFilesystemManifest, "GetFilesystemManifest" }, { PTP_OC_GetStreamInfo, "GetStreamInfo" }, { PTP_OC_GetStream, "GetStream" }, { 0, NULL } }; static value_string_ext ptp_opcode_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_names); static const value_string ptp_opcode_ek_names[] = { { PTP_OC_EK_GetSerial, "EK_GetSerial" }, { PTP_OC_EK_SetSerial, "EK_SetSerial" }, { PTP_OC_EK_SendFileObjectInfo, "EK_SendFileObjectInfo" }, { PTP_OC_EK_SendFileObject, "EK_SendFileObject" }, { PTP_OC_EK_SetText, "EK_SetText" }, { 0, NULL } }; static value_string_ext ptp_opcode_ek_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_ek_names); static const value_string ptp_opcode_canon_names[] = { { PTP_OC_CANON_GetPartialObjectInfo, "CANON_GetPartialObjectInfo" }, { PTP_OC_CANON_SetObjectArchive, "CANON_SetObjectArchive" }, { PTP_OC_CANON_KeepDeviceOn, "CANON_KeepDeviceOn" }, { PTP_OC_CANON_LockDeviceUI, "CANON_LockDeviceUI" }, { PTP_OC_CANON_UnlockDeviceUI, "CANON_UnlockDeviceUI" }, { PTP_OC_CANON_GetObjectHandleByName, "CANON_GetObjectHandleByName" }, { PTP_OC_CANON_InitiateReleaseControl, "CANON_InitiateReleaseControl" }, { PTP_OC_CANON_TerminateReleaseControl, "CANON_TerminateReleaseControl" }, { PTP_OC_CANON_TerminatePlaybackMode, "CANON_TerminatePlaybackMode" }, { PTP_OC_CANON_ViewfinderOn, "CANON_ViewfinderOn" }, { PTP_OC_CANON_ViewfinderOff, "CANON_ViewfinderOff" }, { PTP_OC_CANON_DoAeAfAwb, "CANON_DoAeAfAwb" }, { PTP_OC_CANON_GetCustomizeSpec, "CANON_GetCustomizeSpec" }, { PTP_OC_CANON_GetCustomizeItemInfo, "CANON_GetCustomizeItemInfo" }, { PTP_OC_CANON_GetCustomizeData, "CANON_GetCustomizeData" }, { PTP_OC_CANON_SetCustomizeData, "CANON_SetCustomizeData" }, { PTP_OC_CANON_GetCaptureStatus, "CANON_GetCaptureStatus" }, { PTP_OC_CANON_CheckEvent, "CANON_CheckEvent" }, { PTP_OC_CANON_FocusLock, "CANON_FocusLock" }, { PTP_OC_CANON_FocusUnlock, "CANON_FocusUnlock" }, { PTP_OC_CANON_GetLocalReleaseParam, "CANON_GetLocalReleaseParam" }, { PTP_OC_CANON_SetLocalReleaseParam, "CANON_SetLocalReleaseParam" }, { PTP_OC_CANON_AskAboutPcEvf, "CANON_AskAboutPcEvf" }, { PTP_OC_CANON_SendPartialObject, "CANON_SendPartialObject" }, { PTP_OC_CANON_InitiateCaptureInMemory, "CANON_InitiateCaptureInMemory" }, { PTP_OC_CANON_GetPartialObjectEx, "CANON_GetPartialObjectEx" }, { PTP_OC_CANON_SetObjectTime, "CANON_SetObjectTime" }, { PTP_OC_CANON_GetViewfinderImage, "CANON_GetViewfinderImage" }, { PTP_OC_CANON_GetObjectAttributes, "CANON_GetObjectAttributes" }, { PTP_OC_CANON_ChangeUSBProtocol, "CANON_ChangeUSBProtocol" }, { PTP_OC_CANON_GetChanges, "CANON_GetChanges" }, { PTP_OC_CANON_GetObjectInfoEx, "CANON_GetObjectInfoEx" }, { PTP_OC_CANON_InitiateDirectTransfer, "CANON_InitiateDirectTransfer" }, { PTP_OC_CANON_TerminateDirectTransfer, "CANON_TerminateDirectTransfer" }, { PTP_OC_CANON_SendObjectInfoByPath, "CANON_SendObjectInfoByPath" }, { PTP_OC_CANON_SendObjectByPath, "CANON_SendObjectByPath" }, { PTP_OC_CANON_InitiateDirectTransferEx, "CANON_InitiateDirectTransferEx" }, { PTP_OC_CANON_GetAncillaryObjectHandles, "CANON_GetAncillaryObjectHandles" }, { PTP_OC_CANON_GetTreeInfo, "CANON_GetTreeInfo" }, { PTP_OC_CANON_GetTreeSize, "CANON_GetTreeSize" }, { PTP_OC_CANON_NotifyProgress, "CANON_NotifyProgress" }, { PTP_OC_CANON_NotifyCancelAccepted, "CANON_NotifyCancelAccepted" }, { PTP_OC_CANON_902C, "CANON_902C" }, { PTP_OC_CANON_SetPairingInfo, "CANON_SetPairingInfo" }, { PTP_OC_CANON_GetPairingInfo, "CANON_GetPairingInfo" }, { PTP_OC_CANON_DeletePairingInfo, "CANON_DeletePairingInfo" }, { PTP_OC_CANON_GetMACAddress, "CANON_GetMACAddress" }, { PTP_OC_CANON_SetDisplayMonitor, "CANON_SetDisplayMonitor" }, { PTP_OC_CANON_PairingComplete, "CANON_PairingComplete" }, { PTP_OC_CANON_GetWirelessMAXChannel, "CANON_GetWirelessMAXChannel" }, { PTP_OC_CANON_EOS_GetStorageIDs, "CANON_EOS_GetStorageIDs" }, { PTP_OC_CANON_EOS_GetStorageInfo, "CANON_EOS_GetStorageInfo" }, { PTP_OC_CANON_EOS_GetObjectInfo, "CANON_EOS_GetObjectInfo" }, { PTP_OC_CANON_EOS_GetObject, "CANON_EOS_GetObject" }, { PTP_OC_CANON_EOS_DeleteObject, "CANON_EOS_DeleteObject" }, { PTP_OC_CANON_EOS_FormatStore, "CANON_EOS_FormatStore" }, { PTP_OC_CANON_EOS_GetPartialObject, "CANON_EOS_GetPartialObject" }, { PTP_OC_CANON_EOS_GetDeviceInfoEx, "CANON_EOS_GetDeviceInfoEx" }, { PTP_OC_CANON_EOS_GetObjectInfoEx, "CANON_EOS_GetObjectInfoEx" }, { PTP_OC_CANON_EOS_GetThumbEx, "CANON_EOS_GetThumbEx" }, { PTP_OC_CANON_EOS_SendPartialObject, "CANON_EOS_SendPartialObject" }, { PTP_OC_CANON_EOS_SetObjectAttributes, "CANON_EOS_SetObjectAttributes" }, { PTP_OC_CANON_EOS_GetObjectTime, "CANON_EOS_GetObjectTime" }, { PTP_OC_CANON_EOS_SetObjectTime, "CANON_EOS_SetObjectTime" }, { PTP_OC_CANON_EOS_RemoteRelease, "CANON_EOS_RemoteRelease" }, { PTP_OC_CANON_EOS_SetDevicePropValueEx, "CANON_EOS_SetDevicePropValueEx" }, { PTP_OC_CANON_EOS_GetRemoteMode, "CANON_EOS_GetRemoteMode" }, { PTP_OC_CANON_EOS_SetRemoteMode, "CANON_EOS_SetRemoteMode" }, { PTP_OC_CANON_EOS_SetEventMode, "CANON_EOS_SetEventMode" }, { PTP_OC_CANON_EOS_GetEvent, "CANON_EOS_GetEvent" }, { PTP_OC_CANON_EOS_TransferComplete, "CANON_EOS_TransferComplete" }, { PTP_OC_CANON_EOS_CancelTransfer, "CANON_EOS_CancelTransfer" }, { PTP_OC_CANON_EOS_ResetTransfer, "CANON_EOS_ResetTransfer" }, { PTP_OC_CANON_EOS_PCHDDCapacity, "CANON_EOS_PCHDDCapacity" }, { PTP_OC_CANON_EOS_SetUILock, "CANON_EOS_SetUILock" }, { PTP_OC_CANON_EOS_ResetUILock, "CANON_EOS_ResetUILock" }, { PTP_OC_CANON_EOS_KeepDeviceOn, "CANON_EOS_KeepDeviceOn" }, { PTP_OC_CANON_EOS_SetNullPacketMode, "CANON_EOS_SetNullPacketMode" }, { PTP_OC_CANON_EOS_UpdateFirmware, "CANON_EOS_UpdateFirmware" }, { PTP_OC_CANON_EOS_TransferCompleteDT, "CANON_EOS_TransferCompleteDT" }, { PTP_OC_CANON_EOS_CancelTransferDT, "CANON_EOS_CancelTransferDT" }, { PTP_OC_CANON_EOS_SetWftProfile, "CANON_EOS_SetWftProfile" }, { PTP_OC_CANON_EOS_GetWftProfile, "CANON_EOS_GetWftProfile" }, { PTP_OC_CANON_EOS_SetProfileToWft, "CANON_EOS_SetProfileToWft" }, { PTP_OC_CANON_EOS_BulbStart, "CANON_EOS_BulbStart" }, { PTP_OC_CANON_EOS_BulbEnd, "CANON_EOS_BulbEnd" }, { PTP_OC_CANON_EOS_RequestDevicePropValue, "CANON_EOS_RequestDevicePropValue" }, { PTP_OC_CANON_EOS_RemoteReleaseOn, "CANON_EOS_RemoteReleaseOn" }, { PTP_OC_CANON_EOS_RemoteReleaseOff, "CANON_EOS_RemoteReleaseOff" }, { PTP_OC_CANON_EOS_InitiateViewfinder, "CANON_EOS_InitiateViewfinder" }, { PTP_OC_CANON_EOS_TerminateViewfinder, "CANON_EOS_TerminateViewfinder" }, { PTP_OC_CANON_EOS_GetViewFinderData, "CANON_EOS_GetViewFinderData" }, { PTP_OC_CANON_EOS_DoAf, "CANON_EOS_DoAf" }, { PTP_OC_CANON_EOS_DriveLens, "CANON_EOS_DriveLens" }, { PTP_OC_CANON_EOS_DepthOfFieldPreview, "CANON_EOS_DepthOfFieldPreview" }, { PTP_OC_CANON_EOS_ClickWB, "CANON_EOS_ClickWB" }, { PTP_OC_CANON_EOS_Zoom, "CANON_EOS_Zoom" }, { PTP_OC_CANON_EOS_ZoomPosition, "CANON_EOS_ZoomPosition" }, { PTP_OC_CANON_EOS_SetLiveAfFrame, "CANON_EOS_SetLiveAfFrame" }, { PTP_OC_CANON_EOS_AfCancel, "CANON_EOS_AfCancel" }, { PTP_OC_CANON_EOS_FAPIMessageTX, "CANON_EOS_FAPIMessageTX" }, { PTP_OC_CANON_EOS_FAPIMessageRX, "CANON_EOS_FAPIMessageRX" }, { 0, NULL } }; static value_string_ext ptp_opcode_canon_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_canon_names); static const value_string ptp_opcode_nikon_names[] = { { PTP_OC_NIKON_GetProfileAllData, "NIKON_GetProfileAllData" }, { PTP_OC_NIKON_SendProfileData, "NIKON_SendProfileData" }, { PTP_OC_NIKON_SendProfileData, "NIKON_SendProfileData" }, { PTP_OC_NIKON_DeleteProfile, "NIKON_DeleteProfile" }, { PTP_OC_NIKON_SetProfileData, "NIKON_SetProfileData" }, { PTP_OC_NIKON_AdvancedTransfer, "NIKON_AdvancedTransfer" }, { PTP_OC_NIKON_GetFileInfoInBlock, "NIKON_GetFileInfoInBlock" }, { PTP_OC_NIKON_Capture, "NIKON_Capture" }, { PTP_OC_NIKON_AfDrive, "NIKON_AfDrive" }, { PTP_OC_NIKON_SetControlMode, "NIKON_SetControlMode" }, { PTP_OC_NIKON_DelImageSDRAM, "NIKON_DelImageSDRAM" }, { PTP_OC_NIKON_GetLargeThumb, "NIKON_GetLargeThumb" }, { PTP_OC_NIKON_CurveDownload, "NIKON_CurveDownload" }, { PTP_OC_NIKON_CurveUpload, "NIKON_CurveUpload" }, { PTP_OC_NIKON_CheckEvent, "NIKON_CheckEvent" }, { PTP_OC_NIKON_DeviceReady, "NIKON_DeviceReady" }, { PTP_OC_NIKON_SetPreWBData, "NIKON_SetPreWBData" }, { PTP_OC_NIKON_GetVendorPropCodes, "NIKON_GetVendorPropCodes" }, { PTP_OC_NIKON_AfCaptureSDRAM, "NIKON_AfCaptureSDRAM" }, { PTP_OC_NIKON_GetPictCtrlData, "NIKON_GetPictCtrlData" }, { PTP_OC_NIKON_SetPictCtrlData, "NIKON_SetPictCtrlData" }, { PTP_OC_NIKON_DelCstPicCtrl, "NIKON_DelCstPicCtrl" }, { PTP_OC_NIKON_GetPicCtrlCapability, "NIKON_GetPicCtrlCapability" }, { PTP_OC_NIKON_GetPreviewImg, "NIKON_GetPreviewImg" }, { PTP_OC_NIKON_StartLiveView, "NIKON_StartLiveView" }, { PTP_OC_NIKON_EndLiveView, "NIKON_EndLiveView" }, { PTP_OC_NIKON_GetLiveViewImg, "NIKON_GetLiveViewImg" }, { PTP_OC_NIKON_MfDrive, "NIKON_MfDrive" }, { PTP_OC_NIKON_ChangeAfArea, "NIKON_ChangeAfArea" }, { PTP_OC_NIKON_AfDriveCancel, "NIKON_AfDriveCancel" }, { PTP_OC_NIKON_GetDevicePTPIPInfo, "NIKON_GetDevicePTPIPInfo" }, { 0, NULL } }; static value_string_ext ptp_opcode_nikon_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_nikon_names); static const value_string ptp_opcode_casio_names[] = { { PTP_OC_CASIO_STILL_START, "CASIO_STILL_START" }, { PTP_OC_CASIO_STILL_STOP, "CASIO_STILL_STOP" }, { PTP_OC_CASIO_FOCUS, "CASIO_FOCUS" }, { PTP_OC_CASIO_CF_PRESS, "CASIO_CF_PRESS" }, { PTP_OC_CASIO_CF_RELEASE, "CASIO_CF_RELEASE" }, { PTP_OC_CASIO_GET_OBJECT_INFO, "CASIO_GET_OBJECT_INFO" }, { PTP_OC_CASIO_SHUTTER, "CASIO_SHUTTER" }, { PTP_OC_CASIO_GET_STILL_HANDLES, "CASIO_GET_STILL_HANDLES" }, { PTP_OC_CASIO_STILL_RESET, "CASIO_STILL_RESET" }, { PTP_OC_CASIO_HALF_PRESS, "CASIO_HALF_PRESS" }, { PTP_OC_CASIO_HALF_RELEASE, "CASIO_HALF_RELEASE" }, { PTP_OC_CASIO_CS_PRESS, "CASIO_CS_PRESS" }, { PTP_OC_CASIO_CS_RELEASE, "CASIO_CS_RELEASE" }, { PTP_OC_CASIO_ZOOM, "CASIO_ZOOM" }, { PTP_OC_CASIO_CZ_PRESS, "CASIO_CZ_PRESS" }, { PTP_OC_CASIO_CZ_RELEASE, "CASIO_CZ_RELEASE" }, { PTP_OC_CASIO_MOVIE_START, "CASIO_MOVIE_START" }, { PTP_OC_CASIO_MOVIE_STOP, "CASIO_MOVIE_STOP" }, { PTP_OC_CASIO_MOVIE_PRESS, "CASIO_MOVIE_PRESS" }, { PTP_OC_CASIO_MOVIE_RELEASE, "CASIO_MOVIE_RELEASE" }, { PTP_OC_CASIO_GET_MOVIE_HANDLES, "CASIO_GET_MOVIE_HANDLES" }, { PTP_OC_CASIO_MOVIE_RESET, "CASIO_MOVIE_RESET" }, { PTP_OC_CASIO_GET_OBJECT, "CASIO_GET_OBJECT" }, { PTP_OC_CASIO_GET_THUMBNAIL, "CASIO_GET_THUMBNAIL" }, { 0, NULL } }; static value_string_ext ptp_opcode_casio_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_casio_names); static const value_string ptp_opcode_mtp_names[] = { { PTP_OC_MTP_GetObjectPropsSupported, "MTP_GetObjectPropsSupported" }, { PTP_OC_MTP_GetObjectPropDesc, "MTP_GetObjectPropDesc" }, { PTP_OC_MTP_GetObjectPropValue, "MTP_GetObjectPropValue" }, { PTP_OC_MTP_SetObjectPropValue, "MTP_SetObjectPropValue" }, { PTP_OC_MTP_GetObjPropList, "MTP_GetObjPropList" }, { PTP_OC_MTP_SetObjPropList, "MTP_SetObjPropList" }, { PTP_OC_MTP_GetInterdependendPropdesc, "MTP_GetInterdependendPropdesc" }, { PTP_OC_MTP_SendObjectPropList, "MTP_SendObjectPropList" }, { PTP_OC_MTP_GetObjectReferences, "MTP_GetObjectReferences" }, { PTP_OC_MTP_SetObjectReferences, "MTP_SetObjectReferences" }, { PTP_OC_MTP_UpdateDeviceFirmware, "MTP_UpdateDeviceFirmware" }, { PTP_OC_MTP_Skip, "MTP_Skip" }, { PTP_OC_MTP_WMDRMPD_GetSecureTimeChallenge, "MTP_WMDRMPD_GetSecureTimeChallenge" }, { PTP_OC_MTP_WMDRMPD_GetSecureTimeResponse, "MTP_WMDRMPD_GetSecureTimeResponse" }, { PTP_OC_MTP_WMDRMPD_SetLicenseResponse, "MTP_WMDRMPD_SetLicenseResponse" }, { PTP_OC_MTP_WMDRMPD_GetSyncList, "MTP_WMDRMPD_GetSyncList" }, { PTP_OC_MTP_WMDRMPD_SendMeterChallengeQuery, "MTP_WMDRMPD_SendMeterChallengeQuery" }, { PTP_OC_MTP_WMDRMPD_GetMeterChallenge, "MTP_WMDRMPD_GetMeterChallenge" }, { PTP_OC_MTP_WMDRMPD_SetMeterResponse, "MTP_WMDRMPD_SetMeterResponse" }, { PTP_OC_MTP_WMDRMPD_CleanDataStore, "MTP_WMDRMPD_CleanDataStore" }, { PTP_OC_MTP_WMDRMPD_GetLicenseState, "MTP_WMDRMPD_GetLicenseState" }, { PTP_OC_MTP_WMDRMPD_SendWMDRMPDCommand, "MTP_WMDRMPD_SendWMDRMPDCommand" }, { PTP_OC_MTP_WMDRMPD_SendWMDRMPDRequest, "MTP_WMDRMPD_SendWMDRMPDRequest" }, { PTP_OC_MTP_WMDRMPD_SendWMDRMPDAppRequest, "MTP_WMDRMPD_SendWMDRMPDAppRequest" }, { PTP_OC_MTP_WMDRMPD_GetWMDRMPDAppResponse, "MTP_WMDRMPD_GetWMDRMPDAppResponse" }, { PTP_OC_MTP_WMDRMPD_EnableTrustedFilesOperations, "MTP_WMDRMPD_EnableTrustedFilesOperations" }, { PTP_OC_MTP_WMDRMPD_DisableTrustedFilesOperations, "MTP_WMDRMPD_DisableTrustedFilesOperations" }, { PTP_OC_MTP_WMDRMPD_EndTrustedAppSession, "MTP_WMDRMPD_EndTrustedAppSession" }, { PTP_OC_MTP_AAVT_OpenMediaSession, "MTP_AAVT_OpenMediaSession" }, { PTP_OC_MTP_AAVT_CloseMediaSession, "MTP_AAVT_CloseMediaSession" }, { PTP_OC_MTP_AAVT_GetNextDataBlock, "MTP_AAVT_GetNextDataBlock" }, { PTP_OC_MTP_AAVT_SetCurrentTimePosition, "MTP_AAVT_SetCurrentTimePosition" }, { PTP_OC_MTP_WMDRMND_SendRegistrationRequest, "MTP_WMDRMND_SendRegistrationRequest" }, { PTP_OC_MTP_WMDRMND_GetRegistrationResponse, "MTP_WMDRMND_GetRegistrationResponse" }, { PTP_OC_MTP_WMDRMND_GetProximityChallenge, "MTP_WMDRMND_GetProximityChallenge" }, { PTP_OC_MTP_WMDRMND_SendProximityResponse, "MTP_WMDRMND_SendProximityResponse" }, { PTP_OC_MTP_WMDRMND_SendWMDRMNDLicenseRequest, "MTP_WMDRMND_SendWMDRMNDLicenseRequest" }, { PTP_OC_MTP_WMDRMND_GetWMDRMNDLicenseResponse, "MTP_WMDRMND_GetWMDRMNDLicenseResponse" }, { PTP_OC_MTP_WMPPD_ReportAddedDeletedItems, "MTP_WMPPD_ReportAddedDeletedItems" }, { PTP_OC_MTP_WMPPD_ReportAcquiredItems, "MTP_WMPPD_ReportAcquiredItems" }, { PTP_OC_MTP_WMPPD_PlaylistObjectPref, "MTP_WMPPD_PlaylistObjectPref" }, { PTP_OC_MTP_ZUNE_GETUNDEFINED001, "MTP_ZUNE_GETUNDEFINED001" }, { PTP_OC_MTP_WPDWCN_ProcessWFCObject, "MTP_WPDWCN_ProcessWFCObject" }, { 0, NULL } }; static value_string_ext ptp_opcode_mtp_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_mtp_names); static const value_string ptp_opcode_olympus_names[] = { { PTP_OC_OLYMPUS_Capture, "OLYMPUS_Capture" }, { PTP_OC_OLYMPUS_SelfCleaning, "OLYMPUS_SelfCleaning" }, { PTP_OC_OLYMPUS_SetRGBGain, "OLYMPUS_SetRGBGain" }, { PTP_OC_OLYMPUS_SetPresetMode, "OLYMPUS_SetPresetMode" }, { PTP_OC_OLYMPUS_SetWBBiasAll, "OLYMPUS_SetWBBiasAll" }, { PTP_OC_OLYMPUS_GetCameraControlMode, "OLYMPUS_GetCameraControlMode" }, { PTP_OC_OLYMPUS_SetCameraControlMode, "OLYMPUS_SetCameraControlMode" }, { PTP_OC_OLYMPUS_SetWBRGBGain, "OLYMPUS_SetWBRGBGain" }, { PTP_OC_OLYMPUS_GetDeviceInfo, "OLYMPUS_GetDeviceInfo" }, { PTP_OC_OLYMPUS_Init1, "OLYMPUS_Init1" }, { PTP_OC_OLYMPUS_SetDateTime, "OLYMPUS_SetDateTime" }, { PTP_OC_OLYMPUS_GetDateTime, "OLYMPUS_GetDateTim" }, { PTP_OC_OLYMPUS_SetCameraID, "OLYMPUS_SetCameraID" }, { PTP_OC_OLYMPUS_GetCameraID, "OLYMPUS_GetCameraID" }, { 0, NULL } }; static value_string_ext ptp_opcode_olympus_names_ext = VALUE_STRING_EXT_INIT(ptp_opcode_olympus_names); static const value_string ptp_respcode_names[] = { { PTP_RC_OK, "OK" }, { PTP_RC_GeneralError, "GeneralError" }, { PTP_RC_SessionNotOpen, "SessionNotOpen" }, { PTP_RC_InvalidTransactionID, "InvalidTransactionID" }, { PTP_RC_OperationNotSupported, "OperationNotSupported" }, { PTP_RC_ParameterNotSupported, "ParameterNotSupported" }, { PTP_RC_IncompleteTransfer, "IncompleteTransfer" }, { PTP_RC_InvalidStorageId, "InvalidStorageId" }, { PTP_RC_InvalidObjectHandle, "InvalidObjectHandle" }, { PTP_RC_DevicePropNotSupported, "DevicePropNotSupported" }, { PTP_RC_InvalidObjectFormatCode, "InvalidObjectFormatCode" }, { PTP_RC_StoreFull, "StoreFull" }, { PTP_RC_StoreReadOnly, "StoreReadOnly" }, { PTP_RC_AccessDenied, "AccessDenied" }, { PTP_RC_NoThumbnailPresent, "NoThumbnailPresent" }, { PTP_RC_SelfTestFailed, "SelfTestFailed" }, { PTP_RC_PartialDeletion, "PartialDeletion" }, { PTP_RC_StoreNotAvailable, "StoreNotAvailable" }, { PTP_RC_SpecificationByFormatUnsupported, "SpecificationByFormatUnsupported" }, { PTP_RC_NoValidObjectInfo, "NoValidObjectInfo" }, { PTP_RC_InvalidCodeFormat, "InvalidCodeFormat" }, { PTP_RC_UnknownVendorCode, "UnknownVendorCode" }, { PTP_RC_CaptureAlreadyTerminated, "CaptureAlreadyTerminated" }, { PTP_RC_DeviceBusy, "DeviceBusy" }, { PTP_RC_InvalidParentObject, "InvalidParentObject" }, { PTP_RC_InvalidDevicePropFormat, "InvalidDevicePropFormat" }, { PTP_RC_InvalidDevicePropValue, "InvalidDevicePropValue" }, { PTP_RC_InvalidParameter, "InvalidParameter" }, { PTP_RC_SessionAlreadyOpened, "SessionAlreadyOpened" }, { PTP_RC_TransactionCanceled, "TransactionCanceled" }, { PTP_RC_SpecificationOfDestinationUnsupported, "SpecificationOfDestinationUnsupported" }, { PTP_RC_InvalidEnumHandle, "InvalidEnumHandle" }, { PTP_RC_NoStreamEnabled, "NoStreamEnabled" }, { PTP_RC_InvalidDataSet, "InvalidDataSet" }, { 0, NULL } }; /* static value_string_ext ptp_respcode_names_ext = VALUE_STRING_EXT_INIT(ptp_respcode_names); */ static const value_string ptp_respcode_ek_names[] = { { PTP_RC_EK_FilenameRequired, "EK_FilenameRequired" }, { PTP_RC_EK_FilenameConflicts, "EK_FilenameConflicts" }, { PTP_RC_EK_FilenameInvalid, "EK_FilenameInvalid" }, { 0, NULL } }; static const value_string ptp_respcode_nikon_names[] = { { PTP_RC_NIKON_HardwareError, "NIKON_HardwareError" }, { PTP_RC_NIKON_OutOfFocus, "NIKON_OutOfFocus" }, { PTP_RC_NIKON_ChangeCameraModeFailed, "NIKON_ChangeCameraModeFailed" }, { PTP_RC_NIKON_InvalidStatus, "NIKON_InvalidStatus" }, { PTP_RC_NIKON_SetPropertyNotSupported, "NIKON_SetPropertyNotSupported" }, { PTP_RC_NIKON_WbResetError, "NIKON_WbResetError" }, { PTP_RC_NIKON_DustReferenceError, "NIKON_DustReferenceError" }, { PTP_RC_NIKON_ShutterSpeedBulb, "NIKON_ShutterSpeedBulb" }, { PTP_RC_NIKON_MirrorUpSequence, "NIKON_MirrorUpSequence" }, { PTP_RC_NIKON_CameraModeNotAdjustFNumber, "NIKON_CameraModeNotAdjustFNumber" }, { PTP_RC_NIKON_NotLiveView, "NIKON_NotLiveView" }, { PTP_RC_NIKON_MfDriveStepEnd, "NIKON_MfDriveStepEnd" }, { PTP_RC_NIKON_MfDriveStepInsufficiency, "NIKON_MfDriveStepInsufficiency" }, { PTP_RC_NIKON_AdvancedTransferCancel, "NIKON_AdvancedTransferCancel" }, { 0, NULL } }; static const value_string ptp_respcode_canon_names[] = { { PTP_RC_CANON_UNKNOWN_COMMAND, "CANON_UNKNOWN_COMMAND" }, { PTP_RC_CANON_OPERATION_REFUSED, "CANON_OPERATION_REFUSED" }, { PTP_RC_CANON_LENS_COVER, "CANON_LENS_COVER" }, { PTP_RC_CANON_BATTERY_LOW, "CANON_BATTERY_LOW" }, { PTP_RC_CANON_NOT_READY, "CANON_NOT_READY" }, { PTP_RC_CANON_A009, "CANON_A009" }, { 0, NULL } }; static const value_string ptp_respcode_mtp_names[] = { { PTP_RC_MTP_Undefined, "MTP_Undefined" }, { PTP_RC_MTP_Invalid_ObjectPropCode, "MTP_Invalid_ObjectPropCode" }, { PTP_RC_MTP_Invalid_ObjectProp_Format, "MTP_Invalid_ObjectProp_Format" }, { PTP_RC_MTP_Invalid_ObjectProp_Value, "MTP_Invalid_ObjectProp_Value" }, { PTP_RC_MTP_Invalid_ObjectReference, "MTP_Invalid_ObjectReference" }, { PTP_RC_MTP_Invalid_Dataset, "MTP_Invalid_Dataset" }, { PTP_RC_MTP_Specification_By_Group_Unsupported, "MTP_Specification_By_Group_Unsupported" }, { PTP_RC_MTP_Specification_By_Depth_Unsupported, "MTP_Specification_By_Depth_Unsupported" }, { PTP_RC_MTP_Object_Too_Large, "MTP_Object_Too_Large" }, { PTP_RC_MTP_ObjectProp_Not_Supported, "MTP_ObjectProp_Not_Supported" }, { PTP_RC_MTP_Invalid_Media_Session_ID, "MTP_Invalid_Media_Session_ID" }, { PTP_RC_MTP_Media_Session_Limit_Reached, "MTP_Media_Session_Limit_Reached" }, { PTP_RC_MTP_No_More_Data, "MTP_No_More_Data" }, { PTP_RC_MTP_Invalid_WFC_Syntax, "MTP_Invalid_WFC_Syntax" }, { PTP_RC_MTP_WFC_Version_Not_Supported, "MTP_WFC_Version_Not_Supported" }, { 0, NULL } }; /* String Names of packet types [3] & [4] */ /* PTP/IP definitions */ /* enums reformatted from [4] */ typedef enum { PTPIP_INVALID = 0, PTPIP_INIT_COMMAND_REQUEST = 1, PTPIP_INIT_COMMAND_ACK = 2, PTPIP_INIT_EVENT_REQUEST = 3, PTPIP_INIT_EVENT_ACK = 4, PTPIP_INIT_FAIL = 5, PTPIP_CMD_REQUEST = 6, /* possibly Operation request in [1] 2.3.6 agrees with [3] */ PTPIP_CMD_RESPONSE = 7, /* possibly Operation response in [1] 2.3.7 agrees with [3] */ PTPIP_EVENT = 8, PTPIP_START_DATA_PACKET = 9, PTPIP_DATA_PACKET = 10, PTPIP_CANCEL_TRANSACTION = 11, PTPIP_END_DATA_PACKET = 12, PTPIP_PING = 13, /* possibly Probe Request in [1] 2.3.13 */ PTPIP_PONG = 14 /* possibly Probe Response in [1] 2.3.14 */ } ptpip_pktType; /* Unless otherwise stated, names are based on info in [3] */ static const value_string ptpip_pktType_names[] = { { PTPIP_INVALID, "Invalid" }, { PTPIP_INIT_COMMAND_REQUEST, "Init Command Request Packet" }, { PTPIP_INIT_COMMAND_ACK, "Init Command ACK Packet" }, { PTPIP_INIT_EVENT_REQUEST, "Init Event Request Packet" }, { PTPIP_INIT_EVENT_ACK, "Init Event Ack Packet"}, { PTPIP_INIT_FAIL, "Init Fail Packet"}, { PTPIP_CMD_REQUEST, "Operation Request Packet"}, /* string based on [1] */ { PTPIP_CMD_RESPONSE, "Operation Response Packet"}, /* string based on [1] */ { PTPIP_EVENT, "Event Packet"}, { PTPIP_START_DATA_PACKET, "Start Data Packet"}, { PTPIP_DATA_PACKET, "Data Packet"}, { PTPIP_CANCEL_TRANSACTION, "Cancel Packet"}, { PTPIP_END_DATA_PACKET, "End Data Packet"}, { PTPIP_PING, "Probe Request Packet"}, /* string based on [1] */ { PTPIP_PONG, "Probe Response Packet"}, /* string based on [1] */ { 0, NULL } }; static value_string_ext ptpip_pktType_names_ext = VALUE_STRING_EXT_INIT(ptpip_pktType_names); /** * Primary method to dissect a PTP/IP packet. When a subtype is encounter, * the method will call a subdissector. */ static int dissect_ptpIP (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *item_ptr; proto_tree *ptp_tree; uint16_t offset = 0; uint32_t pktType; /* Check that there's enough data */ if ( tvb_captured_length_remaining(tvb, offset) < 8 ) /* ptp-photo smallest packet size is 8 */ return 0; col_set_str(pinfo->cinfo,COL_PROTOCOL, "PTP/IP"); col_set_str( pinfo->cinfo, COL_INFO, "Picture Transfer Protocol"); item_ptr = proto_tree_add_protocol_format(tree, proto_ptpIP, tvb, offset, -1, "Picture Transfer Protocol"); /* creating the tree */ ptp_tree = proto_item_add_subtree(item_ptr, ett_ptpIP); /* [1] Defines first 2 fields as length and packet type. (Section 2.3) * Also note: the standard lists all multibyte values in PTP-IP as little-endian */ /* note: len field size included in total len */ proto_tree_add_item(ptp_tree, hf_ptpIP_len, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; /* @todo:maybe add some length verification checks to see if len advertised matches actual len */ pktType = tvb_get_letohl(tvb, offset); proto_tree_add_item(ptp_tree, hf_ptpIP_pktType, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; switch (pktType) { case PTPIP_INIT_COMMAND_REQUEST: dissect_ptpIP_init_command_request(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_INIT_COMMAND_ACK: dissect_ptpIP_init_command_ack(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_INIT_EVENT_REQUEST: dissect_ptpIP_init_event_request(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_INIT_EVENT_ACK: dissect_ptpIP_init_event_ack(pinfo); break; case PTPIP_CMD_REQUEST: dissect_ptpIP_operation_request(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_CMD_RESPONSE: dissect_ptpIP_operation_response(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_EVENT: dissect_ptpIP_event(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_START_DATA_PACKET: dissect_ptpIP_start_data(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_DATA_PACKET: dissect_ptpIP_data(tvb, pinfo, ptp_tree, &offset); break; case PTPIP_END_DATA_PACKET: dissect_ptpIP_end_data(tvb, pinfo, ptp_tree, &offset); break; default: break; } return (offset); } /** * Method to dissect the Init Command Request sent by the Initiator * in the connection. This packet is defined by [1] Section 2.3.1 */ static void dissect_ptpIP_init_command_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { *offset += 0; col_set_str( pinfo->cinfo, COL_INFO, "Init Command Request"); dissect_ptpIP_guid(tvb, pinfo, tree, offset); /* grabbing the name */ dissect_ptpIP_unicode_name(tvb, pinfo, tree, offset); /* grabbing protocol version * Note: [3] does not list this in the packet field. . [1] 2.3.1 states it's the last 4 * bytes of the packet. */ dissect_ptpIP_protocol_version(tvb, tree, offset); return; } /** * Method to dissect the Init Command Ack sent by the Responder * in the connection. This packet is defined by [1] Section 2.3.2 */ static void dissect_ptpIP_init_command_ack(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint32_t connectionNumber; col_set_str( pinfo->cinfo, COL_INFO, "Init Command Ack"); /* Grabbing the Connection Number */ connectionNumber = tvb_get_letohl(tvb, *offset); proto_tree_add_item(tree, hf_ptpIP_connectionNumber, tvb, *offset, 4,ENC_LITTLE_ENDIAN); col_append_fstr( pinfo->cinfo, COL_INFO, " Connection #:%u", connectionNumber); *offset += 4; dissect_ptpIP_guid(tvb, pinfo, tree, offset); /* grabbing name */ dissect_ptpIP_unicode_name(tvb,pinfo, tree, offset); /* grabbing protocol version. Note: like in the Init Command Request, [3] doesn't mention * this field, but [1] Section 2.3.2 does. */ dissect_ptpIP_protocol_version(tvb, tree, offset); } /** * Dissects the Init Event Request packet specified in [1] Section 2.3.3. * Standard states that the packet only has 1 field. */ static void dissect_ptpIP_init_event_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint32_t connectionNumber; col_set_str( pinfo->cinfo, COL_INFO, "Init Event Request"); /* Grabbing the Connection Number */ connectionNumber = tvb_get_letohl(tvb, *offset); proto_tree_add_item(tree, hf_ptpIP_connectionNumber, tvb, *offset, 4,ENC_LITTLE_ENDIAN); col_append_fstr( pinfo->cinfo, COL_INFO, " Connection #:%u", connectionNumber); *offset += 4; } /** * Dissects the Init Event Ack packet specified in [1] Section 2.3.4 */ static void dissect_ptpIP_init_event_ack(packet_info *pinfo) { col_set_str( pinfo->cinfo, COL_INFO, "Init Event Ack"); /* packet has no payload. */ } /** * Dissects the Operation Request Packet specified in [1] Section 2.3.6 * Note: many of the fields in this packet move from PTP/IP to PTP layer * of the stack. Work will need to be done in future iterations to make this * compatible with PTP/USB. */ static void dissect_ptpIP_operation_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint16_t opcode; uint16_t transactionID_offset = *offset; /* need to save this to output transaction id in pinfo */ col_set_str( pinfo->cinfo, COL_INFO, "Operation Request Packet "); proto_tree_add_item(tree,hf_ptpIP_dataPhaseInfo, tvb, *offset, 4, ENC_LITTLE_ENDIAN); *offset += 4; opcode = tvb_get_letohs(tvb, *offset); if (opcode & PTP_OC_EXTENSION_MASK) { if (pref_vendor == PTP_VENDOR_UNKNOWN) { proto_tree_add_item(tree, hf_ptp_vendor_opCode, tvb, *offset, 2, ENC_LITTLE_ENDIAN); } else { value_string_ext* vendor_values = NULL; switch(pref_vendor) { case PTP_VENDOR_EASTMAN_KODAK: vendor_values = &ptp_opcode_ek_names_ext; break; case PTP_VENDOR_CANON: vendor_values = &ptp_opcode_canon_names_ext; break; case PTP_VENDOR_NIKON: vendor_values = &ptp_opcode_nikon_names_ext; break; case PTP_VENDOR_CASIO: vendor_values = &ptp_opcode_casio_names_ext; break; case PTP_VENDOR_MTP: vendor_values = &ptp_opcode_mtp_names_ext; break; case PTP_VENDOR_OLYMPUS: vendor_values = &ptp_opcode_olympus_names_ext; break; default: DISSECTOR_ASSERT(false); break; } proto_tree_add_uint_format_value(tree, hf_ptp_vendor_opCode, tvb, *offset, 2, opcode, "%s (0x%04x)", val_to_str_ext_const(opcode, vendor_values, "Unknown"), opcode); } } else { proto_tree_add_item(tree, hf_ptp_opCode, tvb, *offset, 2, ENC_LITTLE_ENDIAN); } *offset += 2; transactionID_offset = *offset; /* we'll dissect the transactionID later because opcode handling erases the column */ *offset += 4; /* carving out the parameters. [1] 2.3.6 states there can be at most 5. Params are defined in [2] 10.1 & 10.4 */ switch (opcode) { case PTP_OC_GetDeviceInfo: /* [1] 10.5.1 */ col_set_str( pinfo->cinfo, COL_INFO, "GetDeviceInfo"); /* No parameters */ break; case PTP_OC_OpenSession: dissect_ptp_opCode_openSession(tvb, pinfo, tree, offset); break; case PTP_OC_CloseSession: /* [1] 10.5.3 */ col_set_str( pinfo->cinfo, COL_INFO, "CloseSession"); /* No parameters */ break; case PTP_OC_GetStorageIDs: /* [2] 10.5.4 */ col_set_str( pinfo->cinfo, COL_INFO, "GetStorageIDs"); /* states data is a storage array. Needs eventual investigation. */ break; default: break; } dissect_ptp_transactionID(tvb, pinfo, tree, &transactionID_offset); } /** * Dissects the Operation Response Packet specified in [1] Section 2.3.7 * Note: many of the fields in this packet move from PTP/IP to PTP layer * of the stack. Work will need to be done in future iterations to make this * compatible with PTP/USB. */ static void dissect_ptpIP_operation_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint16_t resp; col_set_str( pinfo->cinfo, COL_INFO, "Operation Response Packet "); resp = tvb_get_letohs(tvb, *offset); if (resp & PTP_OC_EXTENSION_MASK) { const value_string* vendor_values = NULL; switch(pref_vendor) { case PTP_VENDOR_EASTMAN_KODAK: vendor_values = ptp_respcode_ek_names; break; case PTP_VENDOR_CANON: vendor_values = ptp_respcode_canon_names; break; case PTP_VENDOR_NIKON: vendor_values = ptp_respcode_nikon_names; break; case PTP_VENDOR_MTP: vendor_values = ptp_respcode_mtp_names; break; case PTP_VENDOR_UNKNOWN: case PTP_VENDOR_CASIO: case PTP_VENDOR_OLYMPUS: default: vendor_values = ptp_respcode_names; break; } proto_tree_add_uint_format_value(tree, hf_ptp_vendor_opCode, tvb, *offset, 2, resp, "%s (0x%04x)", val_to_str_const(resp, vendor_values, "Unknown"), resp); } else { proto_tree_add_item(tree, hf_ptp_respCode, tvb, *offset, 2, ENC_LITTLE_ENDIAN); } *offset += 2; dissect_ptp_transactionID(tvb, pinfo, tree, offset); } /** * Dissects the Event Packet specified in [1] Section 2.3.8 * Note: many of the fields in this packet move from PTP/IP to PTP layer * of the stack. Work will need to be done in future iterations to make this * compatible with PTP/USB. */ static void dissect_ptpIP_event(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { col_set_str( pinfo->cinfo, COL_INFO, "Event Packet "); proto_tree_add_item(tree, hf_ptp_eventCode, tvb, *offset, 2, ENC_LITTLE_ENDIAN); *offset += 2; dissect_ptp_transactionID(tvb, pinfo, tree, offset); } /** * Dissects the Event Packet specified in [1] Section 2.3.9 * Note: many of the fields in this packet move from PTP/IP to PTP layer * of the stack. Work will need to be done in future iterations to make this * compatible with PTP/USB. */ static void dissect_ptpIP_start_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint64_t dataLen; col_set_str( pinfo->cinfo, COL_INFO, "Start Data Packet "); dissect_ptp_transactionID(tvb, pinfo, tree, offset); dataLen = tvb_get_letoh64(tvb, *offset); proto_tree_add_item(tree, hf_ptp_totalDataLength, tvb, *offset, 8, ENC_LITTLE_ENDIAN); *offset += 8; if (dataLen == UINT64_C(0xFFFFFFFFFFFFFFFF)) /* [1] specifies in 2.3.9 if total data len is this value then len is unknown */ { col_append_str( pinfo->cinfo, COL_INFO, " Data Length Unknown"); } } static void dissect_ptpIP_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { col_set_str( pinfo->cinfo, COL_INFO, "Data Packet "); dissect_ptp_transactionID(tvb, pinfo, tree, offset); } /** * Dissects the End Data specified in [1] Section 2.3.11 * Note: many of the fields in this packet move from PTP/IP to PTP layer * of the stack. Work will need to be done in future iterations to make this * compatible with PTP/USB. */ static void dissect_ptpIP_end_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { col_set_str( pinfo->cinfo, COL_INFO, "End Data Packet "); dissect_ptp_transactionID(tvb, pinfo, tree, offset); } /** * Dissects the Opcode Open Session as defined by [2] 10.5.2 */ void dissect_ptp_opCode_openSession(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { col_set_str( pinfo->cinfo, COL_INFO, "OpenSession"); proto_tree_add_item(tree, hf_ptp_opCode_param_sessionID, tvb, *offset, 4 , ENC_LITTLE_ENDIAN); *offset += 4; } /** * The transaction ID is defined in [2] 9.3.1 * and used in multiple message types. This method handles * parsing the field and adding the value to the info * column. * */ void dissect_ptp_transactionID(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint32_t transactionID; transactionID = tvb_get_letohl(tvb, *offset); proto_tree_add_item(tree, hf_ptp_transactionID, tvb, *offset, 4, ENC_LITTLE_ENDIAN); *offset += 4; col_append_fstr( pinfo->cinfo, COL_INFO, " Transaction ID: %d", transactionID); } /** * This method handles dissecting the Unicode name that is * specificed in multiple packets. */ static void dissect_ptpIP_unicode_name(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { const uint8_t *name; int nameLen; nameLen = tvb_unicode_strsize(tvb, *offset); proto_tree_add_item_ret_string(tree, hf_ptpIP_name, tvb, *offset, nameLen, ENC_UTF_16|ENC_LITTLE_ENDIAN, pinfo->pool, &name); *offset += nameLen; col_append_fstr(pinfo->cinfo, COL_INFO, " Name: %s", name); } /** Method dissects the protocol version from the packets. * Additional note, section 3 of [1] defines the Binary Protocol version * as 0x00010000 == 1.0 where the Most significant bits are the major version and the least * significant bits are the minor version. */ static void dissect_ptpIP_protocol_version(tvbuff_t *tvb, proto_tree *tree, uint16_t *offset) { uint8_t version[30]; uint32_t protoVersion; uint16_t majorVersion, minorVersion; protoVersion = tvb_get_letohl(tvb, *offset); /* logic to format version */ minorVersion = protoVersion & 0xFFFF; majorVersion = (protoVersion & 0xFFFF0000) >>16; snprintf(version, sizeof(version), "%u.%u", majorVersion, minorVersion); proto_tree_add_string(tree, hf_ptpIP_version, tvb, *offset, 4, version); *offset += 4; } /* Grabbing the GUID */ static void dissect_ptpIP_guid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint16_t *offset) { uint8_t *guid; guid = tvb_bytes_to_str(pinfo->pool, tvb, *offset, PTPIP_GUID_SIZE); proto_tree_add_item(tree, hf_ptpIP_guid, tvb, *offset, PTPIP_GUID_SIZE, ENC_NA); *offset += PTPIP_GUID_SIZE; col_append_fstr( pinfo->cinfo, COL_INFO, " GUID: %s", guid); } void proto_register_ptpip( void ) { static hf_register_info hf[] = { /* PTP/IP layer */ { &hf_ptpIP_len, { "Length", "ptpip.len", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_ptpIP_pktType, { "Packet Type", "ptpip.pktType", FT_UINT32, BASE_HEX | BASE_EXT_STRING, &ptpip_pktType_names_ext, 0, NULL, HFILL }}, { &hf_ptpIP_guid, { "GUID", "ptpip.guid", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_ptpIP_name, { "Host Name", "ptpip.name", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_ptpIP_version, { "Version", "ptpip.version", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }}, { &hf_ptpIP_connectionNumber, { "Connection Number", "ptpip.connection", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }}, { &hf_ptpIP_dataPhaseInfo, { "Data Phase Info", "ptpip.phaseinfo", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, /* PTP layer */ /* leaving names with "ptpip" to try and prevent namespace issues. probably changing later. */ { &hf_ptp_opCode, { "Operation Code", "ptpip.opcode", FT_UINT16, BASE_HEX|BASE_EXT_STRING, &ptp_opcode_names_ext, 0, NULL, HFILL }}, { &hf_ptp_vendor_opCode, { "Operation Code", "ptpip.opcode", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_ptp_respCode, { "Response Code", "ptpip.respcode", FT_UINT16, BASE_HEX, VALS(ptp_respcode_names), 0, NULL, HFILL }}, { &hf_ptp_eventCode, { "Event Code", "ptpip.eventcode", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_ptp_transactionID, { "Transaction ID", "ptpip.transactionID", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, { &hf_ptp_totalDataLength, { "Total Data Length", "ptpip.datalen", FT_UINT64, BASE_DEC_HEX, NULL, 0, NULL, HFILL }}, { &hf_ptp_opCode_param_sessionID, { "Session ID", "ptpip.opcode.param.sessionid", FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }}, }; static int *ett[] = { &ett_ptpIP, &ett_ptpIP_hdr }; module_t *ptpIP_module; proto_ptpIP = proto_register_protocol("Picture Transfer Protocol Over IP", "PTP/IP", "ptpip"); proto_register_field_array(proto_ptpIP, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); /* Use register_dissector() to indicate that dissect_ptpIP() * returns the number of bytes it dissected (or 0 if it thinks the packet * does not belong to PROTONAME). */ ptpIP_handle = register_dissector("ptpip", dissect_ptpIP, proto_ptpIP); ptpIP_module = prefs_register_protocol(proto_ptpIP, NULL); prefs_register_enum_preference(ptpIP_module, "vendor", "Camera vendor", "Properly translates vendor specific opcodes", &pref_vendor, pref_hsp_role, false); } void proto_reg_handoff_ptpIP( void ) { dissector_add_uint_with_preference("tcp.port", PTPIP_PORT, ptpIP_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */