diff options
author | Anders Broman <anders.broman@ericsson.com> | 2012-03-01 15:23:05 +0000 |
---|---|---|
committer | Anders Broman <anders.broman@ericsson.com> | 2012-03-01 15:23:05 +0000 |
commit | d8d9450a4f9bcd114dcfb547125cb225d1cb1437 (patch) | |
tree | f37287f63c6e522d2325f0364339aff4a7925b40 /epan/dissectors/packet-ua.c | |
parent | 566dc82999aca3db8c595ce043f046660dc08e11 (diff) |
From Lars Ruoff:
Dissector for Alcatel-Lucent Enterprise Universal Alcatel- and NOE protocol, take II.
families.
Meant as a replacement for existing UA-dissector in trunk because of better
feature set:
- latest protocol specifiaction
- more detailed dissection and filtering possibilities on subprotocols
- RTP stream setup
- NOE over SIP
Lars Ruoff
On behalf of Alcatel-Lucent Enterprise
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6844
svn path=/trunk/; revision=41266
Diffstat (limited to 'epan/dissectors/packet-ua.c')
-rw-r--r-- | epan/dissectors/packet-ua.c | 1091 |
1 files changed, 295 insertions, 796 deletions
diff --git a/epan/dissectors/packet-ua.c b/epan/dissectors/packet-ua.c index e88cd8212d..cae38d6eb8 100644 --- a/epan/dissectors/packet-ua.c +++ b/epan/dissectors/packet-ua.c @@ -1,835 +1,334 @@ /* packet-ua.c -* Routines for UA (Universal Alcatel) packet dissection. -* Copyright 2011, Marek Tews <marek@trx.com.pl> -* -* $Id$ -* -* Wireshark - Network traffic analyzer -* By Gerald Combs <gerald@wireshark.org> -* Copyright 1998 Gerald Combs -* -* Copied from WHATEVER_FILE_YOU_USED (where "WHATEVER_FILE_YOU_USED" -* is a dissector file; if you just copied this from README.developer, -* don't bother with the "Copied from" - you don't even need to put -* in a "Copied from" if you copied an existing dissector, especially -* if the bulk of the code in the new dissector is your code) -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version 2 -* of the License, or (at your option) any later version. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy 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. -*/ + * Routines for UA/UDP (Universal Alcatel over UDP) packet dissection. + * Copyright 2012, Alcatel-Lucent Enterprise <lars.ruoff@alcatel-lucent.com> + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy 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 -#ifdef HAVE_SYS_TYPES_H -# include <sys/types.h> -#endif +#include "epan/packet.h" +#include "epan/prefs.h" +#include "epan/tap.h" +#include "epan/value_string.h" +#include "epan/dissectors/packet-rtp.h" +#include "epan/dissectors/packet-rtcp.h" +#include <string.h> -#ifdef HAVE_NETINET_IN_H -#include <netinet/in.h> -#endif +#include "packet-uaudp.h" -#include <epan/packet.h> - -static void DissectNOE(tvbuff_t *pTvb, proto_tree *pRootUA); -static void DissectNOE_type(tvbuff_t *pTvb, proto_tree *pNoeItem); -static void DissectNOE_voicemode(tvbuff_t *pTvb, proto_tree *pNoeItem); -static void DissectNOE_callserver(tvbuff_t *pTvb, proto_tree *pNoeItem); -static void DissectNOE_ip(tvbuff_t *pTvb, proto_tree *pNoeItem); -static void DissectNOE_ip_startrtp(tvbuff_t *pTvb, proto_tree *pNoeItem); -static void DissectNOE_ip_startrtp_properties(tvbuff_t *pTvb, proto_tree *pNoeItem); - -static void DissectTLV(tvbuff_t *pTvb, proto_tree *pNoeItem, gboolean bIsArrIndex); -static void DissectTLV_data(tvbuff_t *pTvb, proto_tree *pTlv, guint8 u8Property); - -/* -* Here are the global variables associated with -* the various user definable characteristics of the dissection -*/ - -/* Define the UA proto */ -static int proto_ua = -1; - -/* Define many header fields for UA (Universal Alcatel Protocol) */ -static int hf_noe = -1; -static int hf_noe_length = -1; -static int hf_noe_type = -1; -static int hf_noe_method = -1; -static int hf_noe_class = -1; -static int hf_noe_objid = -1; -static int hf_noe_event = -1; -static int hf_noe_keychar = -1; -static int hf_noe_action = -1; -static int hf_noe_reserved = -1; -static int hf_noe_property = -1; -static int hf_noe_id = -1; -static int hf_noe_size = -1; -static int hf_noe_local_port = -1; -static int hf_noe_remote_ip = -1; -static int hf_noe_remote_port = -1; -static int hf_noe_data = -1; -static int hf_noe_compressor = -1; -static int hf_noe_typeofservice = -1; -static int hf_noe_payloadconcat = -1; -static int hf_noe_voicemode = -1; - -static int hf_tlv = -1; -static int hf_tlv_property = -1; -static int hf_tlv_arrindex = -1; -static int hf_tlv_propsize = -1; -static int hf_tlv_label = -1; -static int hf_tlv_data = -1; -static int hf_tlv_year = -1; -static int hf_tlv_number = -1; - -/* Define the trees for UA (Universal Alcatel Protocol) */ -static int ett_ua = -1; - -static int ett_noe = -1; -static int ett_noe_property = -1; - -static int ett_tlv = -1; -static int ett_tlv_sub = -1; - - -/************************************************************ -* Value Strings -************************************************************/ - -/** -* NOE -*/ -static const value_string szNoeType[] = -{ - { 0x00, "Unknown" }, - { 0x01, "HandsetOffHook" }, - { 0x02, "HandsetOnHook" }, - { 0x03, "DigitDialed" }, - { 0x13, "IP" }, - { 0x15, "CallServer" }, - { 0x20, "KeyPushed" }, - { 0x21, "LedCmd" }, - { 0x27, "WriteLine1" }, - { 0x28, "WriteLine2" }, - { 0x29, "VoiceMode" }, - { 0x31, "SetClockComd" }, - { 0x35, "CursorBlink" }, - { 0x38, "ClockTimerPosition" }, - { 0x3a, "Error_0x3a" }, - { 0x3d, "SideTone" }, - { 0x3f, "Mute" }, - { 0x46, "AllIconsOff" }, - { 0x47, "IconsCmd" }, - { 0x48, "AmplifiedHandset" }, - { 0x49, "DPIConfiguration" }, - { 0x4a, "AudioPaddedPath" }, - { 0x4f, "Error_0x4f" }, - { 0, NULL } -}; - -static const value_string szCallServerMethod[] = -{ - { 0x00, "Create" }, - { 0x01, "Delete" }, - { 0x02, "SetProperty" }, - { 0x04, "Notify" }, - { 0, NULL } -}; - -static const value_string szCallServerClass[] = -{ - { 1, "Terminal" }, - { 5, "Leds" }, - { 6, "Screen" }, - { 7, "Date" }, - { 8, "AOMV" }, - { 12, "CallState" }, - { 128, "FrameBox" }, - { 129, "TabBox" }, - { 130, "ListBox" }, - { 132, "TextBox" }, - { 133, "ActionBox" }, - { 136, "DataBox" }, - { 137, "TimerBox" }, - { 144, "AOMVBox" }, - { 145, "TelephonicBox" }, - { 146, "KeyboardContext" }, - { 151, "TelephonicBoxItem" }, - { 158, "HeaderBox" }, - { 0, NULL } -}; - -static const value_string szCallServerEvent[] = -{ - { 2, "KeyPress" }, - { 4, "KeyShortPress" }, - { 6, "OnHook" }, - { 7, "OffHook" }, - { 128, "TabBox" }, - { 133, "ActionBox" }, - { 152, "DialogBoxDismissed" }, - { 0, NULL } -}; - -static const value_string szStartRtpPropID[] = -{ - { 0x00, "LocalUDPPort" }, - { 0x01, "RemoteIP" }, - { 0x02, "RemoteUDPPort" }, - { 0x03, "TypeOfService" }, - { 0x04, "Payload" }, - { 0x05, "PayloadConcatenation" }, /* in ms */ - { 0x06, "EchoCancelationEnabler" }, - { 0x07, "SilenceCompression" }, - { 0x08, "_802_1QUserPriority" }, - { 0x0A, "PostFiltering" }, - { 0x0B, "HighPassFilter" }, - { 0, NULL } -}; - -static const value_string szStartRtpPayload[] = -{ - { 0, "G.711 A-law" }, - { 1, "G.711 mu-law" }, - { 2, "G.723.1 5.3 kbps" }, - { 3, "G.723.1 6.3 kbps" }, - { 0x11, "G.729A 8kbps"}, - { 0, NULL } -}; - -static const value_string szNoeAction[] = -{ - { 0x01, "Start RTP" }, - { 0x02, "Stop RTP" }, - { 0, NULL } -}; -static const value_string szNoeVoiceMode[] = -{ - { 0x10, "Disable" }, - { 0x11, "Handset" }, - { 0x13, "Speaker" }, - { 0, NULL } -}; - -/** -* TLV PROPERTY -*/ -static const value_string szTlvProperty[] = -{ - { 8, "Count" }, - { 11, "NavigatorOwnerShip" }, - { 15, "NumpadEvent" }, - { 16, "Format_16" }, - { 18, "W" }, - { 19, "Hour" }, - { 24, "Year" }, - { 25, "Month" }, - { 26, "Day" }, - { 27, "Minutes" }, - { 28, "Seconds" }, - { 36, "AnchorID" }, - { 39, "Y" }, - { 40, "Visible" }, - { 42, "FontID" }, - { 44, "HAlign" }, - { 54, "Icon_54" }, - { 55, "Label" }, - { 56, "Value" }, - { 61, "Focus" }, - { 62, "State_62" }, - { 63, "Format_63" }, - { 76, "VSplit" }, - { 78, "RealCount" }, - { 79, "Start" }, - { 95, "_95" }, - { 131, "Key Ownership" }, - { 134, "Mode" }, - { 135, "Color" }, - { 137, "Icon_137" }, - { 138, "Label_138" }, - { 141, "State_141" }, - { 142, "Name" }, - { 143, "Number" }, - { 147, "Today" }, - { 148, "Tomorrow" }, - { 0, NULL } -}; - -/************************************************************ -* Check whether it can be protocol data -************************************************************/ -gboolean is_ua(tvbuff_t *tvb) -{ - gint nLen, iOffs; - gint nNoeLen; - - nLen = tvb_length(tvb); - for(iOffs = 0; iOffs < nLen; ) - { - nNoeLen = tvb_get_letohs(tvb, iOffs) +2; - if(nNoeLen > nLen -iOffs) - return FALSE; - iOffs += nNoeLen; - } - return TRUE; -} -/************************************************************ -* Dissectors -************************************************************/ +/*----------------------------------------------------------------------------- + GLOBALS + ---------------------------------------------------------------------------*/ +static int proto_ua_msg = -1; +static gint ett_ua_msg = -1; -/* -* DissectUA - The dissector for UA (Universal Alcatel Protocol) -*/ -static int DissectUA(tvbuff_t *pTvb, packet_info *pInfo, proto_tree *pTree) -{ - gint nLen, iOffs; - guint nNoeLen; - proto_item *pRootUA; - proto_tree *pSubTreeUA; - tvbuff_t *pTvbNoe; - - /* Check whether it can be protocol data */ - if(!is_ua(pTvb)) - return 0; - - /* INFO column */ - col_append_str(pInfo->cinfo, COL_INFO, " - UA"); - - nLen = tvb_length(pTvb); - if(pTree) - { - /* root element "UA Protocol, ..." */ - pRootUA = proto_tree_add_item(pTree, proto_ua, pTvb, 0, -1, ENC_NA); - pSubTreeUA = proto_item_add_subtree(pRootUA, ett_ua); - - /* NOE items */ - for(iOffs = 0; iOffs < nLen; ) - { - nNoeLen = tvb_get_letohs(pTvb, iOffs); - nNoeLen += 2; - - pTvbNoe = tvb_new_subset(pTvb, iOffs, nNoeLen, nNoeLen); - DissectNOE(pTvbNoe, pSubTreeUA); - - iOffs += nNoeLen; - } - } - - return nLen; -} +e_ua_direction message_direction; /* Uses to determine UA3G messages */ +static gboolean setup_conversations_enabled = TRUE; -/********************************************** -* NOE section -*********************************************** -Noe -NoeVoiceMode -NoeMute -NoeIP -NoeIPStartRTP -NoeCallServer -NoeCallServerCreate -NoeCallServerSetProperty -NoeCallServerNotify -NoeCallServerNotifyKeyPress -NoeCallServerNotifyKeyShortPress -***********************************************/ -static void DissectNOE(tvbuff_t *pTvb, proto_tree *pRootUA) -{ - proto_item *pNoeItem = proto_tree_add_item(pRootUA, hf_noe, pTvb, 0, -1, ENC_NA); - if(pNoeItem) - { - proto_tree* pSubTreeNOE; - - pSubTreeNOE = proto_item_add_subtree(pNoeItem, ett_noe); - proto_tree_add_item(pSubTreeNOE, hf_noe_length, pTvb, 0, 2, ENC_LITTLE_ENDIAN); - DissectNOE_type(tvb_new_subset_remaining(pTvb, 2), pSubTreeNOE); - } -} +static dissector_handle_t rtp_handle = NULL; +static dissector_handle_t rtcp_handle = NULL; -static void DissectNOE_type(tvbuff_t *pTvb, proto_tree *pNoeItem) -{ - proto_item_append_text(pNoeItem, ": %s", val_to_str_const(tvb_get_guint8(pTvb, 0), szNoeType, "Unknown")); - proto_tree_add_item(pNoeItem, hf_noe_type, pTvb, 0, 1, ENC_NA); - - switch(tvb_get_guint8(pTvb, 0)) - { - case 0x13: /*IP*/ - { - DissectNOE_ip(tvb_new_subset_remaining(pTvb, 1), pNoeItem); - break; - } - case 0x15: /*CallServer*/ - { - DissectNOE_callserver(tvb_new_subset_remaining(pTvb, 1), pNoeItem); - break; - } - case 0x29: /*VoiceMode*/ - { - DissectNOE_voicemode(tvb_new_subset_remaining(pTvb, 1), pNoeItem); - break; - } - } -} +extern gint find_terminal_port(guint port); -static void DissectNOE_voicemode(tvbuff_t *pTvb, proto_tree *pNoeItem) -{ - proto_tree_add_item(pNoeItem, hf_noe_voicemode, pTvb, 0, 1, ENC_NA); - if(tvb_length(pTvb) > 1) - proto_tree_add_item(pNoeItem, hf_noe_data, pTvb, 1, -1, ENC_NA); -} -static void DissectNOE_callserver(tvbuff_t *pTvb, proto_tree *pNoeItem) -{ - tvbuff_t *pTvbTlv; - - gint nLen; - guint8 u8Method; - - nLen = tvb_length(pTvb); - u8Method = tvb_get_guint8(pTvb, 0); - - proto_item_append_text(pNoeItem, ", %s", val_to_str(u8Method, szCallServerMethod, "Unknown")); - proto_tree_add_item(pNoeItem, hf_noe_method, pTvb, 0, 1, ENC_NA); - - switch(u8Method) - { - case 0x00: /*Create*/ - case 0x01: /*Delete*/ - case 0x02: /*SetProperty*/ - { - guint8 u8Class; gint iOffs; - - u8Class = tvb_get_guint8(pTvb, 1); - proto_item_append_text(pNoeItem, ", %s", val_to_str(u8Class, szCallServerClass, "Unknown")); - proto_tree_add_item(pNoeItem, hf_noe_class, pTvb, 1, 1, ENC_NA); - - iOffs = 2; - if(u8Class >= 100) - { - proto_item_append_text(pNoeItem, ", Id(0x%04x)", tvb_get_ntohs(pTvb, 2)); - proto_tree_add_item(pNoeItem, hf_noe_objid, pTvb, 2, 2, ENC_LITTLE_ENDIAN); - iOffs += 2; - } - - /* TLV items */ - for(; iOffs < nLen; ) - { - guint nTlvLen; - guint8 nTlvProperty; - gboolean bIsArrIndex; - - nTlvProperty = tvb_get_guint8(pTvb, iOffs); - /* for property of more than 100 and equal 104 or 120 before the field is still arrindex propsize */ - if((nTlvProperty < 100) || (nTlvProperty == 104) || (nTlvProperty == 120)) - { - nTlvLen = tvb_get_guint8(pTvb, iOffs+1); - nTlvLen += 2; - bIsArrIndex = FALSE; - } - else - { - nTlvLen = tvb_get_guint8(pTvb, iOffs+2); - nTlvLen += 3; - bIsArrIndex = TRUE; - } - pTvbTlv = tvb_new_subset(pTvb, iOffs, nTlvLen, nTlvLen); - DissectTLV(pTvbTlv, pNoeItem, bIsArrIndex); - - iOffs += nTlvLen; - } - break; - } - case 0x04: /*Notify*/ - { - guint8 u8Event; - - u8Event = tvb_get_guint8(pTvb, 1); - proto_tree_add_item(pNoeItem, hf_noe_event, pTvb, 1, 1, ENC_NA); - - switch(u8Event) - { - case 2: /*KeyPress*/ - { - proto_tree_add_item(pNoeItem, hf_noe_keychar, pTvb, 2, -1, ENC_NA); - break; - } - case 4: /*KeyShortPress*/ - { - proto_tree_add_item(pNoeItem, hf_noe_keychar, pTvb, 2, 2, ENC_NA); - break; - } - } - break; - } - } -} +extern void dhs2ua(char *p, const char *ptr, int opcode, int length); +extern void ua2dhs(char *p, const char *ptr, int opcode, int length); -static void DissectNOE_ip(tvbuff_t *pTvb, proto_tree *pNoeItem) -{ - guint8 u8Action; - - /* Action */ - u8Action = tvb_get_guint8(pTvb, 0); - proto_item_append_text(pNoeItem, " %s", val_to_str(u8Action, szNoeAction, "Unknown")); - proto_tree_add_item(pNoeItem, hf_noe_action, pTvb, 0, 1, ENC_NA); - - switch(u8Action) - { - case 0x01: /*Start RTP*/ - { - DissectNOE_ip_startrtp(tvb_new_subset_remaining(pTvb, 1), pNoeItem); - break; - } - case 0x02: /*Stop RTP*/ - { - break; - } - } -} -static void DissectNOE_ip_startrtp(tvbuff_t *pTvb, proto_tree *pNoeItem) +static void uadecode(e_ua_direction direction, + proto_tree *tree, + packet_info *pinfo, + tvbuff_t *tvb, + gint offset, + gint opcode, + gint length) { - gint nLen, iOffs; - nLen = tvb_length(pTvb); - - /*Reserved*/ - proto_tree_add_item(pNoeItem, hf_noe_reserved, pTvb, 0, 1, ENC_NA); - - /*Properties*/ - for(iOffs = 1; iOffs < nLen; ) - { - guint u8PropSize; - tvbuff_t *pTvbTlv; + message_direction = direction; + + switch(opcode & 0x7f) /* suppression of the CP bit */ + { + case 0x15: + case 0x16: + { + call_dissector(find_dissector("noe"), + tvb_new_subset(tvb, offset, length, length), + pinfo, + tree); + break; + } + case 0x00: + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x07: /* Only UA NOE */ + case 0x08: /* Only UA NOE */ + case 0x09: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: + case 0x11: + case 0x12: + case 0x13: + case 0x14: + case 0x17: + case 0x18: + case 0x1F: /* case 0x9F */ + case 0x20: + case 0x21: + case 0x22: + case 0x23: + case 0x24: /* Only IP NOE */ + case 0x25: /* Only IP NOE */ + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: /* Only UA NOE */ + case 0x2C: + case 0x2D: + case 0x2E: + case 0x30: + case 0x31: + case 0x32: /* Only UA NOE */ + case 0x33: + case 0x35: + case 0x36: /* IP Phone */ + case 0x38: + case 0x39: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: /* Only UA NOE */ + { + call_dissector(find_dissector("ua3g"), + tvb_new_subset(tvb, offset, length, length), + pinfo, + tree); + break; + } + default: + { + /* add text to the frame "INFO" column */ + if (check_col(pinfo->cinfo, COL_INFO)) + col_append_fstr(pinfo->cinfo, COL_INFO, " - UA3G Message ERR: Opcode Unknown"); + + proto_tree_add_text(tree, + tvb, + offset, + length, + "Opcode Unknown 0x%02x", + tvb_get_guint8(tvb, (offset + 2))); + break; + } + } +} - u8PropSize = tvb_get_guint8(pTvb, iOffs+1) + 2; - pTvbTlv = tvb_new_subset(pTvb, iOffs, u8PropSize, u8PropSize); - DissectNOE_ip_startrtp_properties(pTvbTlv, pNoeItem); - iOffs += u8PropSize; - } -} -static void DissectNOE_ip_startrtp_properties(tvbuff_t *pTvb, proto_tree *pNoeItem) +/*----------------------------------------------------------------------------- + UA DISSECTOR + ---------------------------------------------------------------------------*/ +static void _dissect_ua_msg(tvbuff_t *tvb, + packet_info *pinfo, + proto_tree *tree, + e_ua_direction direction) { - proto_item *pProp; - - pProp = proto_tree_add_item(pNoeItem, hf_noe_property, pTvb, 0, -1, ENC_NA); - if(pProp) - { - guint8 u8ID, u8Size; - proto_tree* pSubTreeProp; - - pSubTreeProp = proto_item_add_subtree(pProp, ett_noe_property); - /*ID*/ - u8ID = tvb_get_guint8(pTvb, 0); - proto_item_append_text(pProp, " - %25s", val_to_str(u8ID, szStartRtpPropID, "Unknown")); - proto_tree_add_item(pSubTreeProp, hf_noe_id, pTvb, 0, 1, ENC_NA); - - /*SIZE*/ - u8Size = tvb_get_guint8(pTvb, 1); - proto_tree_add_item(pSubTreeProp, hf_noe_size, pTvb, 1, 1, ENC_NA); - - /*data*/ - switch(u8ID) - { - default: - { - proto_item_append_text(pProp, ": %s", tvb_bytes_to_str(pTvb, 2, u8Size)); - proto_tree_add_item(pSubTreeProp, hf_noe_data, pTvb, 2, -1, ENC_NA); - break; - } - case 0x00: /*LocalUDPPort*/ - { - proto_item_append_text(pProp, ": %u", tvb_get_ntohs(pTvb, 2)); - proto_tree_add_item(pSubTreeProp, hf_noe_local_port, pTvb, 2, 2, ENC_BIG_ENDIAN); - break; - } - case 0x01: /*RemoteIP*/ - { - proto_item_append_text(pProp, ": %s", tvb_ip_to_str(pTvb, 2)); - proto_tree_add_item(pSubTreeProp, hf_noe_remote_ip, pTvb, 2, 4, ENC_NA); - break; - } - case 0x02: /*RemoteUDPPort*/ - { - proto_item_append_text(pProp, ": %u", tvb_get_ntohs(pTvb, 2)); - proto_tree_add_item(pSubTreeProp, hf_noe_remote_port, pTvb, 2, 2, ENC_BIG_ENDIAN); - break; - } - case 0x03: /*TypeOfService*/ - { - proto_item_append_text(pProp, ": %u", tvb_get_guint8(pTvb, 2)); - proto_tree_add_item(pSubTreeProp, hf_noe_typeofservice, pTvb, 2, 1, ENC_NA); - break; - } - case 0x04: /*Payload*/ - { - proto_item_append_text(pProp, ": %s", val_to_str_const(tvb_get_guint8(pTvb, 2), szStartRtpPayload, "Unknown")); - proto_tree_add_item(pSubTreeProp, hf_noe_compressor, pTvb, 2, 1, ENC_NA); - break; - } - case 0x05: /*PayloadConcatenation*/ - { - proto_item_append_text(pProp, ": %u ms", tvb_get_guint8(pTvb, 2)); - proto_tree_add_item(pSubTreeProp, hf_noe_payloadconcat, pTvb, 2, 1, ENC_NA); - break; - } - } - } + proto_item *ua_msg_item = NULL; + proto_tree *ua_msg_tree = NULL; + gint offset = 0; + gint length = 0; + gint opcode = 0; + gint suboffset = 0; + address remote_rtp_addr; + guint32 remote_rtp_port = 0; + + if(tree) + { + ua_msg_item = proto_tree_add_protocol_format(tree, proto_ua_msg, tvb, 0, -1, + "Universal Alcatel Protocol, %s", + ((direction == SYS_TO_TERM) ? + "System -> Terminal" : "Terminal -> System")); + + ua_msg_tree = proto_item_add_subtree(ua_msg_item, ett_ua_msg); + + while (tvb_offset_exists(tvb, offset)) + { + length = (tvb_get_guint8(tvb, offset+0) + + tvb_get_guint8(tvb, offset+1) * 256) + 2; + + opcode = tvb_get_guint8(tvb, offset+2); + + /* RTP/RTCP conversation setup */ + if(setup_conversations_enabled && opcode==0x13 && tvb_get_guint8(tvb, offset+3)==0x01) + { + /* StartRTP */ + suboffset = offset+5; + remote_rtp_addr.data = NULL; + + while(suboffset < offset+length) + { + switch(tvb_get_guint8(tvb, suboffset)) + { + case 0x00: /* local port */ + { + /*local_rtp_port = tvb_get_ntohs(tvb, suboffset+2);*/ + break; + } + case 0x01: /* remote IP */ + { + remote_rtp_addr.type=AT_IPv4; + remote_rtp_addr.len=4; + remote_rtp_addr.data=tvb_get_ptr(tvb, suboffset+2, 4); + break; + } + case 0x02: /* remote port */ + { + remote_rtp_port = tvb_get_ntohs(tvb, suboffset+2); + break; + } + } + + suboffset += tvb_get_guint8(tvb, suboffset+1) + 2; + } + + if(remote_rtp_addr.data!=NULL && remote_rtp_port!=0) + { + if(rtp_handle) + { + rtp_add_address(pinfo, &remote_rtp_addr, remote_rtp_port, 0, + "UA", pinfo->fd->num, 0, NULL); + } + if(rtcp_handle) + { + rtcp_add_address(pinfo, &remote_rtp_addr, remote_rtp_port+1, 0, + "UA", pinfo->fd->num); + } + } + } + + uadecode(direction, ua_msg_tree, pinfo, tvb, offset, opcode, length); + + offset += length; + } + } } -/*********************************************** -* TLV section -***********************************************/ -static void DissectTLV(tvbuff_t *pTvb, proto_tree *pNoeItem, gboolean bIsArrIndex) + +static void dissect_ua_sys_to_term(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { - proto_item *pTlv; - - pTlv = proto_tree_add_item(pNoeItem, hf_tlv, pTvb, 0, -1, ENC_NA); - if(pTlv) - { - gint iOffs; - guint8 u8Property, u8PropSize; - proto_tree* pSubTreeTLV; - - iOffs = 0; - pSubTreeTLV = proto_item_add_subtree(pTlv, ett_tlv); - u8Property = tvb_get_guint8(pTvb, iOffs); - proto_item_append_text(pTlv, "%u %s ", u8Property, val_to_str(u8Property, szTlvProperty, "Unknown")); - proto_tree_add_item(pSubTreeTLV, hf_tlv_property, pTvb, iOffs++, 1, ENC_NA); - - if(bIsArrIndex) - proto_tree_add_item(pTlv, hf_tlv_arrindex, pTvb, iOffs++, 1, ENC_NA); - - u8PropSize = tvb_get_guint8(pTvb, iOffs); - proto_tree_add_item(pSubTreeTLV, hf_tlv_propsize, pTvb, iOffs++, 1, ENC_NA); - - if(u8PropSize > 0) - DissectTLV_data(tvb_new_subset(pTvb, iOffs, u8PropSize, u8PropSize), pSubTreeTLV, u8Property); - } + _dissect_ua_msg(tvb, pinfo, tree, SYS_TO_TERM); } -/* TLV DATA */ -static void DissectTLV_data(tvbuff_t *pTvb, proto_tree *pTlv, guint8 u8Property) +static void dissect_ua_term_to_sys(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { - proto_tree* pNoeItem; - switch(u8Property) - { - default: - { - proto_item_append_text(pTlv, "%s", tvb_bytes_to_str(pTvb, 0, tvb_length(pTvb))); - proto_tree_add_item(pTlv, hf_tlv_data, pTvb, 0, -1, ENC_NA); - break; - } - - case 24: /*Year*/ - { - proto_item_append_text(pTlv, "%u", tvb_get_ntohs(pTvb, 0)); - proto_tree_add_item(pTlv, hf_tlv_year, pTvb, 0, 2, ENC_BIG_ENDIAN); - break; - } - - case 55: /*Label*/ - case 138: /*Label_138*/ - { - proto_item_append_text(pTlv, "'%s'", tvb_get_ephemeral_string(pTvb, 0, tvb_length(pTvb))); - proto_tree_add_item(pTlv, hf_tlv_label, pTvb, 0, -1, ENC_ASCII|ENC_NA); - - /* append text on NOE level */ - pNoeItem = proto_item_get_parent(pTlv); - proto_item_append_text(pNoeItem, ", Label='%s'", tvb_get_ephemeral_string(pTvb, 0, tvb_length(pTvb))); - break; - } - - case 143: /*Phone number*/ - { - proto_item_append_text(pTlv, "%s", tvb_get_ephemeral_string(pTvb, 0, tvb_length(pTvb))); - proto_tree_add_item(pTlv, hf_tlv_number, pTvb, 0, -1, ENC_NA); - break; - } - - case 147: /*Today*/ - case 148: /*Tomorrow*/ - { - proto_item_append_text(pTlv, "'%s'", tvb_get_ephemeral_string(pTvb, 0, tvb_length(pTvb))); - proto_tree_add_item(pTlv, hf_tlv_data, pTvb, 0, -1, ENC_NA); - break; - } - } + _dissect_ua_msg(tvb, pinfo, tree, TERM_TO_SYS); } +/*----------------------------------------------------------------------------- + DISSECTORS REGISTRATION FUNCTIONS + ---------------------------------------------------------------------------*/ -/* Register all the bits needed by the filtering engine */ -void proto_register_ua(void) +void proto_reg_handoff_ua_msg(void) { - static hf_register_info hf[] = - { - { &hf_noe, - { "NOE", "ua.noe", - FT_NONE, BASE_NONE, NULL, 0x0, - NULL, HFILL }}, - { &hf_noe_length, - { "Length", "ua.noe.length", - FT_UINT16, BASE_DEC, NULL, 0x0, - "NOE item length (without 2 bytes containing the length)", HFILL }}, - { &hf_noe_type, - { "Type", "ua.noe.type", - FT_UINT8, BASE_DEC, VALS(szNoeType), 0x0, - "NOE item type", HFILL }}, - { &hf_noe_method, - { "Method", "ua.noe.method", - FT_UINT8, BASE_DEC, VALS(szCallServerMethod), 0x0, - "Call Server method", HFILL }}, - { &hf_noe_class, - { "Class", "ua.noe.class", - FT_UINT8, BASE_DEC, VALS(szCallServerClass), 0x0, - "Call Server class", HFILL }}, - { &hf_noe_objid, - { "ObjectID", "ua.noe.objid", - FT_UINT16, BASE_HEX_DEC, NULL, 0x0, - "Call Server object id", HFILL }}, - { &hf_noe_event, - { "Event", "ua.noe.event", - FT_UINT8, BASE_DEC, VALS(szCallServerEvent), 0x0, - "Call Server event", HFILL }}, - { &hf_noe_keychar, - { "KeyChar", "ua.noe.event.keychar", - FT_BYTES, BASE_NONE, NULL, 0x0, - "Event key char", HFILL }}, - { &hf_noe_voicemode, - { "VoiceMode", "ua.noe.voicemode", - FT_UINT8, BASE_DEC, VALS(szNoeVoiceMode), 0x0, - NULL, HFILL }}, - - { &hf_noe_action, - { "Action", "ua.noe.action", - FT_UINT8, BASE_DEC, VALS(szNoeAction), 0x0, - "IP action", HFILL }}, - { &hf_noe_reserved, - { "Reserved", "ua.noe.action.startrtp.reserved", - FT_UINT8, BASE_DEC, NULL, 0x0, - "IP start rtp reserved", HFILL }}, - { &hf_noe_property, - { "Property", "ua.noe.action.startrtp.property", - FT_NONE, BASE_NONE, NULL, 0x0, - "IP property", HFILL }}, - { &hf_noe_id, - { "ID", "ua.noe.action.startrtp.property.id", - FT_UINT8, BASE_DEC, VALS(szStartRtpPropID), 0x0, - "IP property id", HFILL }}, - { &hf_noe_size, - { "Size", "ua.noe.action.startrtp.property.size", - FT_UINT8, BASE_DEC, NULL, 0x0, - "IP property size", HFILL }}, - { &hf_noe_data, - { "Data", "ua.noe.action.startrtp.data", - FT_BYTES, BASE_NONE, NULL, 0x0, - NULL, HFILL }}, - - { &hf_noe_local_port, - { "LocalPort", "ua.noe.action.startrtp.localport", - FT_UINT16, BASE_DEC, NULL, 0x0, - "IP start rtp property localport", HFILL }}, - { &hf_noe_remote_ip, - { "RemoteIP", "ua.noe.action.startrtp.remoteip", - FT_IPv4, BASE_NONE, NULL, 0x0, - "IP start rtp property remote ipv4", HFILL }}, - { &hf_noe_remote_port, - { "RemotePort", "ua.noe.action.startrtp.remoteport", - FT_UINT16, BASE_DEC, NULL, 0x0, - "IP start rtp property remoteport", HFILL }}, - { &hf_noe_compressor, - { "Payload", "ua.noe.action.startrtp.payload", - FT_UINT8, BASE_DEC, VALS(szStartRtpPayload), 0x0, - "IP start rtp property payload", HFILL }}, - { &hf_noe_typeofservice, - { "TypeOfService", "ua.noe.action.startrtp.typeofservice", - FT_UINT8, BASE_DEC, NULL, 0x0, - "IP start rtp property type of service", HFILL }}, - { &hf_noe_payloadconcat, - { "Payld Concat", "ua.noe.action.startrtp.payldconcat", - FT_UINT8, BASE_DEC, NULL, 0x0, - "IP start rtp property payload concatenation (in ms)", HFILL }}, - - { &hf_tlv, - { "TLV", "ua.noe.tlv", - FT_NONE, BASE_NONE, NULL, 0x0, - NULL, HFILL }}, - { &hf_tlv_property, - { "Property", "ua.noe.tlv.property", - FT_UINT8, BASE_DEC, VALS(szTlvProperty), 0x0, - "TLV property", HFILL }}, - { &hf_tlv_arrindex, - { "ArrIndex", "ua.noe.tlv.arrindex", - FT_UINT8, BASE_DEC, NULL, 0x0, - "TLV array index", HFILL }}, - { &hf_tlv_propsize, - { "PropSize", "ua.noe.tlv.propsize", - FT_UINT8, BASE_DEC, NULL, 0x0, - "TLV property size", HFILL }}, - { &hf_tlv_data, - { "Data", "ua.noe.tlv.data", - FT_BYTES, BASE_NONE, NULL, 0x0, - "TLV data", HFILL }}, - { &hf_tlv_label, - { "Label", "ua.noe.tlv.label", - FT_STRING, BASE_NONE, NULL, 0x0, - "TLV label", HFILL }}, - { &hf_tlv_year, - { "Year", "ua.noe.tlv.year", - FT_UINT16, BASE_DEC, NULL, 0x0, - "TLV year", HFILL }}, - { &hf_tlv_number, - { "Number", "ua.noe.tlv.number", - FT_STRING, BASE_NONE, NULL, 0x0, - "TLV remote phone number", HFILL }}, - }; - static gint *ett[] = - { - &ett_ua, - &ett_noe, - &ett_noe_property, - &ett_tlv, - &ett_tlv_sub, - }; - - proto_ua = proto_register_protocol("UA Protocol (Universal Alcatel Protocol)", "UA", "ua"); - proto_register_field_array(proto_ua, hf, array_length(hf)); - proto_register_subtree_array(ett, array_length(ett)); + static gboolean prefs_initialized = FALSE; + dissector_handle_t handle_ua_msg; + + if(!prefs_initialized) + { + /* hooking of UA on UAUDP */ + register_dissector_table("uaudp.opcode", + "UAUDP opcode", + FT_UINT8, + BASE_DEC); + + handle_ua_msg = find_dissector("ua_sys_to_term"); + dissector_add_uint("uaudp.opcode", UAUDP_DATA, handle_ua_msg); + + handle_ua_msg = find_dissector("ua_term_to_sys"); + dissector_add_uint("uaudp.opcode", UAUDP_DATA, handle_ua_msg); + prefs_initialized = TRUE; + } } -/* The registration hand-off routine is called at startup */ -void proto_reg_handoff_ua(void) +void proto_register_ua_msg(void) { - dissector_handle_t hDis = new_create_dissector_handle(DissectUA, proto_ua); - dissector_add_uint("uaudp.opcode", 7, hDis); + module_t *ua_msg_module; + + static gint *ett[] = + { + &ett_ua_msg, + }; + + /* used for StartRTP conversation setup */ + rtp_handle = find_dissector("rtp"); + rtcp_handle = find_dissector("rtcp"); + + /* UA dissector registration */ + proto_ua_msg = proto_register_protocol("Universal Alcatel Protocol", "UA", "ua"); + + register_dissector("ua_sys_to_term", dissect_ua_sys_to_term, proto_ua_msg); + register_dissector("ua_term_to_sys", dissect_ua_term_to_sys, proto_ua_msg); + + /* Common subtree array registration */ + proto_register_subtree_array(ett, array_length(ett)); + + /* Register preferences */ + ua_msg_module = prefs_register_protocol(proto_ua_msg, proto_reg_handoff_ua_msg); + + prefs_register_bool_preference(ua_msg_module, "setup_conversations", + "Setup RTP/RTCP conversations on Start RTP", + "Setup RTP/RTCP conversations when parsing Start RTP messages", + &setup_conversations_enabled); } -/* -* Editor modelines - http://www.wireshark.org/tools/modelines.html -* -* Local variables: -* c-basic-offset: 4 -* tab-width: 8 -* indent-tabs-mode: nil -* End: -* -* ex: set shiftwidth=4 tabstop=8 expandtab: -* :indentSize=4:tabSize=8:noTabs=true: -*/ |