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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
commit | e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch) | |
tree | 68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-ptpip.c | |
parent | Initial commit. (diff) | |
download | wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip |
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-ptpip.c')
-rw-r--r-- | epan/dissectors/packet-ptpip.c | 1125 |
1 files changed, 1125 insertions, 0 deletions
diff --git a/epan/dissectors/packet-ptpip.c b/epan/dissectors/packet-ptpip.c new file mode 100644 index 00000000..6e5f7e52 --- /dev/null +++ b/epan/dissectors/packet-ptpip.c @@ -0,0 +1,1125 @@ +/* packet-ptpip.c + * Routines for PTP/IP (Picture Transfer Protocol) packet dissection + * 0xBismarck 2013 + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * 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 <epan/packet.h> +#include <epan/prefs.h> +#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 gint ett_ptpIP = -1; +static gint ett_ptpIP_hdr = -1; + +/* PTP/IP Fields */ +static int proto_ptpIP = -1; +static int hf_ptpIP_len = -1; /* [1] Section 2.3 */ +static int hf_ptpIP_pktType = -1; /* [1] Section 2.3 */ +static int hf_ptpIP_guid = -1; +static int hf_ptpIP_name = -1; +static int hf_ptpIP_version = -1; +static int hf_ptpIP_connectionNumber = -1; +static int hf_ptpIP_dataPhaseInfo = -1; + +/* 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 = -1; +static int hf_ptp_vendor_opCode = -1; +static int hf_ptp_respCode = -1; +static int hf_ptp_eventCode = -1; +static int hf_ptp_transactionID = -1; +static int hf_ptp_totalDataLength = -1; +static int hf_ptp_opCode_param_sessionID = -1; + +/* 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, guint16 *offset); +static void dissect_ptpIP_init_command_ack (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_init_event_request (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *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, guint16 *offset); +static void dissect_ptpIP_operation_response (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_start_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_end_data (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_event (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_unicode_name (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_protocol_version (tvbuff_t *tvb, proto_tree *tree, guint16 *offset); +static void dissect_ptpIP_guid (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint16 *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 = 0; + + +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; + guint16 offset = 0; + + guint32 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, guint16 *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, guint16 *offset) +{ + guint32 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, guint16 *offset) +{ + guint32 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, guint16 *offset) +{ + guint16 opcode; + guint16 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, guint16 *offset) +{ + guint16 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, guint16 *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, guint16 *offset) +{ + guint64 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 == G_GUINT64_CONSTANT(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, guint16 *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, guint16 *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, guint16 *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, guint16 *offset) +{ + guint32 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, guint16 *offset) +{ + const guint8 *name; + gint 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, guint16 *offset) +{ + + guint8 version[30]; + guint32 protoVersion; + guint16 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, guint16 *offset) +{ + guint8 *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 gint *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: + */ |