/* packet-dect.c * * Dissector for the Digital Enhanced Cordless Telecommunications * protocol. * * $Id$ * * Copyright 2008-2009: * - Andreas Schuler * - Matthias Wenzel * * Wireshark - Network traffic analyzer * By Gerald Combs * 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. */ /* TODO (roughly in that order) - Don't use structs to access the elements in the datastream. - Use tvb_..._item wherever possible - Add references to documentation (ETSI EN 300 175 parts 1-8) - Make things stateful - Once the capture format has stabilized, get rid of the Ethernet hack and use a proper capture type. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include #define ETHERTYPE_DECT 0x2323 /* move to epan/etypes.h */ /* scramble table */ guint8 scrt[8][31]= { {0x3B,0xCD,0x21,0x5D,0x88,0x65,0xBD,0x44,0xEF,0x34,0x85,0x76,0x21,0x96,0xF5,0x13,0xBC,0xD2,0x15,0xD8,0x86,0x5B,0xD4,0x4E,0xF3,0x48,0x57,0x62,0x19,0x6F,0x51}, {0x32,0xDE,0xA2,0x77,0x9A,0x42,0xBB,0x10,0xCB,0x7A,0x89,0xDE,0x69,0x0A,0xEC,0x43,0x2D,0xEA,0x27,0x79,0xA4,0x2B,0xB1,0x0C,0xB7,0xA8,0x9D,0xE6,0x90,0xAE,0xC4}, {0x2D,0xEA,0x27,0x79,0xA4,0x2B,0xB1,0x0C,0xB7,0xA8,0x9D,0xE6,0x90,0xAE,0xC4,0x32,0xDE,0xA2,0x77,0x9A,0x42,0xBB,0x10,0xCB,0x7A,0x89,0xDE,0x69,0x0A,0xEC,0x43}, {0x27,0x79,0xA4,0x2B,0xB1,0x0C,0xB7,0xA8,0x9D,0xE6,0x90,0xAE,0xC4,0x32,0xDE,0xA2,0x77,0x9A,0x42,0xBB,0x10,0xCB,0x7A,0x89,0xDE,0x69,0x0A,0xEC,0x43,0x2D,0xEA}, {0x19,0x6F,0x51,0x3B,0xCD,0x21,0x5D,0x88,0x65,0xBD,0x44,0xEF,0x34,0x85,0x76,0x21,0x96,0xF5,0x13,0xBC,0xD2,0x15,0xD8,0x86,0x5B,0xD4,0x4E,0xF3,0x48,0x57,0x62}, {0x13,0xBC,0xD2,0x15,0xD8,0x86,0x5B,0xD4,0x4E,0xF3,0x48,0x57,0x62,0x19,0x6F,0x51,0x3B,0xCD,0x21,0x5D,0x88,0x65,0xBD,0x44,0xEF,0x34,0x85,0x76,0x21,0x96,0xF5}, {0x0C,0xB7,0xA8,0x9D,0xE6,0x90,0xAE,0xC4,0x32,0xDE,0xA2,0x77,0x9A,0x42,0xBB,0x10,0xCB,0x7A,0x89,0xDE,0x69,0x0A,0xEC,0x43,0x2D,0xEA,0x27,0x79,0xA4,0x2B,0xB1}, {0x79,0xA4,0x2B,0xB1,0x0C,0xB7,0xA8,0x9D,0xE6,0x90,0xAE,0xC4,0x32,0xDE,0xA2,0x77,0x9A,0x42,0xBB,0x10,0xCB,0x7A,0x89,0xDE,0x69,0x0A,0xEC,0x43,0x2D,0xEA,0x27} }; #ifndef BOOL # define BOOL int #endif struct dect_afield { guint8 Header; guint8 Tail[5]; guint16 RCRC; }; struct dect_bfield { guint8 Data[128]; guint8 Length; }; static int proto_dect = -1; static dissector_handle_t dect_handle; #if 0 static int proto_dect2 = -1; #endif static gint subtree_dect = -1; static gint subtree_afield = -1; static gint subtree_ahead = -1; static gint subtree_atail = -1; static gint subtree_aqt = -1; static gint subtree_bfield = -1; static int hf_dect_transceivermode = -1; static int hf_dect_preamble = -1; static int hf_dect_type = -1; static int hf_dect_channel = -1; static int hf_dect_framenumber = -1; static int hf_dect_rssi = -1; static int hf_dect_slot = -1; static int hf_dect_A = -1; static int hf_dect_A_Head = -1; static int hf_dect_A_Head_TA = -1; static int hf_dect_A_Head_Q1 = -1; static int hf_dect_A_Head_BA = -1; static int hf_dect_A_Head_Q2 = -1; static int hf_dect_A_Tail = -1; static int hf_dect_A_Tail_Nt = -1; static int hf_dect_A_Tail_Qt_Qh = -1; static int hf_dect_A_Tail_Qt_0_Sn = -1; static int hf_dect_A_Tail_Qt_0_Nr = -1; static int hf_dect_A_Tail_Qt_0_Sp = -1; static int hf_dect_A_Tail_Qt_0_Esc = -1; static int hf_dect_A_Tail_Qt_0_Txs = -1; static int hf_dect_A_Tail_Qt_0_Mc = -1; static int hf_dect_A_Tail_Qt_0_Spr1 = -1; static int hf_dect_A_Tail_Qt_0_Cn = -1; static int hf_dect_A_Tail_Qt_0_Spr2 = -1; static int hf_dect_A_Tail_Qt_0_PSCN = -1; static int hf_dect_A_Tail_Qt_3_A12 = -1; static int hf_dect_A_Tail_Qt_3_A13 = -1; static int hf_dect_A_Tail_Qt_3_A14 = -1; static int hf_dect_A_Tail_Qt_3_A15 = -1; static int hf_dect_A_Tail_Qt_3_A16 = -1; static int hf_dect_A_Tail_Qt_3_A17 = -1; static int hf_dect_A_Tail_Qt_3_A18 = -1; static int hf_dect_A_Tail_Qt_3_A19 = -1; static int hf_dect_A_Tail_Qt_3_A20 = -1; static int hf_dect_A_Tail_Qt_3_A21 = -1; static int hf_dect_A_Tail_Qt_3_A22 = -1; static int hf_dect_A_Tail_Qt_3_A23 = -1; static int hf_dect_A_Tail_Qt_3_A24 = -1; static int hf_dect_A_Tail_Qt_3_A25 = -1; static int hf_dect_A_Tail_Qt_3_A26 = -1; static int hf_dect_A_Tail_Qt_3_A27 = -1; static int hf_dect_A_Tail_Qt_3_A28 = -1; static int hf_dect_A_Tail_Qt_3_A29 = -1; static int hf_dect_A_Tail_Qt_3_A30 = -1; static int hf_dect_A_Tail_Qt_3_A31 = -1; static int hf_dect_A_Tail_Mt_Mh = -1; static int hf_dect_A_Tail_Mt_BasicConCtrl = -1; static int hf_dect_A_Tail_Mt_Encr_Cmd1 = -1; static int hf_dect_A_Tail_Mt_Encr_Cmd2 = -1; static int hf_dect_A_Tail_Pt_ExtFlag = -1; static int hf_dect_A_Tail_Pt_SDU = -1; static int hf_dect_A_Tail_Pt_InfoType = -1; static int hf_dect_A_Tail_Pt_Fill_Fillbits = -1; static int hf_dect_A_Tail_Pt_Bearer_Sn = -1; static int hf_dect_A_Tail_Pt_Bearer_Cn = -1; static int hf_dect_A_Tail_Pt_Bearer_Sp = -1; static int hf_dect_A_RCRC = -1; static int hf_dect_B = -1; static int hf_dect_B_Data = -1; static int hf_dect_B_XCRC = -1; const value_string tranceiver_mode[]= { {0,"Receive"}, {1,"Send"}, {0,NULL} }; const value_string TA_vals[]= { {0,"Ct Next Data Packet"}, {1,"Ct First Data Packet"}, {2,"Nt Identities Information on Connectionless Bearer"}, {3,"Nt Identities Information"}, {4,"Qt Multiframe Synchronisation and System Information"}, {5,"Escape"}, {6,"Mt MAC Layer Control"}, {7,"Pt Paging Tail"}, {0,NULL} }; const value_string BA_vals[]= { {0,"U-Type, In, SIn or Ip Packet No. 0 or No Valid Ip_error_detect Channel Data"}, {1,"U-Type, Ip_error_detect or Ip Packet No. 1 or SIn or No Valid In Channel Data"}, {2,"Double-Slot Required / E-Type, all Cf or CLf, Packet No. 0"}, {3,"E-Type, All Cf, Packet No. 1"}, {4,"Half-Slot Required / E-Type, not all Cf or CLf, Cf Packet No. 0"}, {5,"E-Type, not all Cf, Cf Packet No. 1"}, {6,"E-Type, All MAC control (unnumbered)"}, {7,"No B-Field"}, {0,NULL} }; const value_string QTHead_vals[]= { {0,"Static System Info"}, {1,"Static System Info"}, {2,"Extended RF Carriers Part 1"}, {3,"Fixed Part Capabilities"}, {4,"Extended Fixed Part Capabilities"}, {5,"SARI List Contents"}, {6,"Multi-Frame No."}, {7,"Escape"}, {8,"Obsolete"}, {9,"Extended RF Carriers Part 2"}, {10,"Reserved(?)"}, {11,"Transmit Information(?)"}, {12,"Reserved"}, {13,"Reserved"}, {14,"Reserved"}, {15,"Reserved"}, {0,NULL} }; const value_string QTNormalReverse_vals[]= { {0,"Normal RFP Transmit Half-Frame"}, {1,"Normal PP Transmit Half-Frame"}, {0,NULL} }; const value_string QTSlotNumber_vals[]= { {0,"Slot Pair 0/12"}, {1,"Slot Pair 1/13"}, {2,"Slot Pair 2/14"}, {3,"Slot Pair 3/15"}, {4,"Slot Pair 4/16"}, {5,"Slot Pair 5/17"}, {6,"Slot Pair 6/18"}, {7,"Slot Pair 7/19"}, {8,"Slot Pair 8/20"}, {9,"Slot Pair 9/21"}, {10,"Slot Pair 10/22"}, {11,"Slot Pair 11/23"}, {12,"Reserved"}, {13,"Reserved"}, {14,"Reserved"}, {15,"Reserved"}, {0,NULL} }; const value_string QTStartPosition_vals[]= { {0,"S-Field starts at Bit F0"}, {1,"Reserved for Future Use"}, {2,"S-Field starts at Bit F240"}, {3,"Reserved for Future Use"}, {0,NULL} }; const value_string QTEscape_vals[]= { {0,"No QT Escape is broadcast"}, {1,"The QT Escape is broadcast"}, {0,NULL} }; const value_string QTTranceiver_vals[]= { {0,"RFP has 1 Transceiver"}, {1,"RFP has 2 Transceiver"}, {2,"RFP has 3 Transceiver"}, {3,"RFP has 4 or more Transceiver"}, {0,NULL} }; const value_string QTExtendedCarrier_vals[]= { {0,"No Extended RF Carrier Information Message"}, {1,"Extended RF Carrier Information Message shall be transmitted in the next Multiframe"}, {0,NULL} }; const value_string QTSpr_vals[]= { {0,"OK"}, {1,"Reserved"}, {2,"Reserved"}, {3,"Reserved"}, {0,NULL} }; const value_string QTCarrierNumber_vals[]= { {0,"RF Carrier 0"}, {1,"RF Carrier 1"}, {2,"RF Carrier 2"}, {3,"RF Carrier 3"}, {4,"RF Carrier 4"}, {5,"RF Carrier 5"}, {6,"RF Carrier 6"}, {7,"RF Carrier 7"}, {8,"RF Carrier 8"}, {9,"RF Carrier 9"}, {10,"RF Carrier 10"}, {11,"RF Carrier 11"}, {12,"RF Carrier 12"}, {13,"RF Carrier 13"}, {14,"RF Carrier 14"}, {15,"RF Carrier 15"}, {16,"RF Carrier 16"}, {17,"RF Carrier 17"}, {18,"RF Carrier 18"}, {19,"RF Carrier 19"}, {20,"RF Carrier 20"}, {21,"RF Carrier 21"}, {22,"RF Carrier 22"}, {23,"RF Carrier 23"}, {24,"RF Carrier 24"}, {25,"RF Carrier 25"}, {26,"RF Carrier 26"}, {27,"RF Carrier 27"}, {28,"RF Carrier 28"}, {29,"RF Carrier 29"}, {30,"RF Carrier 30"}, {31,"RF Carrier 31"}, {32,"RF Carrier 32"}, {33,"RF Carrier 33"}, {34,"RF Carrier 34"}, {35,"RF Carrier 35"}, {36,"RF Carrier 36"}, {37,"RF Carrier 37"}, {38,"RF Carrier 38"}, {39,"RF Carrier 39"}, {40,"RF Carrier 40"}, {41,"RF Carrier 41"}, {42,"RF Carrier 42"}, {43,"RF Carrier 43"}, {44,"RF Carrier 44"}, {45,"RF Carrier 45"}, {46,"RF Carrier 46"}, {47,"RF Carrier 47"}, {48,"RF Carrier 48"}, {49,"RF Carrier 49"}, {50,"RF Carrier 50"}, {51,"RF Carrier 51"}, {52,"RF Carrier 52"}, {53,"RF Carrier 53"}, {54,"RF Carrier 54"}, {55,"RF Carrier 55"}, {56,"RF Carrier 56"}, {57,"RF Carrier 57"}, {58,"RF Carrier 58"}, {59,"RF Carrier 59"}, {60,"RF Carrier 60"}, {61,"RF Carrier 61"}, {62,"RF Carrier 62"}, {63,"RF Carrier 63"}, {0,NULL} }; const value_string QTScanCarrierNum_vals[]= { {0,"Primary Scan next on RF Carrier 0"}, {1,"Primary Scan next on RF Carrier 1"}, {2,"Primary Scan next on RF Carrier 2"}, {3,"Primary Scan next on RF Carrier 3"}, {4,"Primary Scan next on RF Carrier 4"}, {5,"Primary Scan next on RF Carrier 5"}, {6,"Primary Scan next on RF Carrier 6"}, {7,"Primary Scan next on RF Carrier 7"}, {8,"Primary Scan next on RF Carrier 8"}, {9,"Primary Scan next on RF Carrier 9"}, {10,"Primary Scan next on RF Carrier 10"}, {11,"Primary Scan next on RF Carrier 11"}, {12,"Primary Scan next on RF Carrier 12"}, {13,"Primary Scan next on RF Carrier 13"}, {14,"Primary Scan next on RF Carrier 14"}, {15,"Primary Scan next on RF Carrier 15"}, {16,"Primary Scan next on RF Carrier 16"}, {17,"Primary Scan next on RF Carrier 17"}, {18,"Primary Scan next on RF Carrier 18"}, {19,"Primary Scan next on RF Carrier 19"}, {20,"Primary Scan next on RF Carrier 20"}, {21,"Primary Scan next on RF Carrier 21"}, {22,"Primary Scan next on RF Carrier 22"}, {23,"Primary Scan next on RF Carrier 23"}, {24,"Primary Scan next on RF Carrier 24"}, {25,"Primary Scan next on RF Carrier 25"}, {26,"Primary Scan next on RF Carrier 26"}, {27,"Primary Scan next on RF Carrier 27"}, {28,"Primary Scan next on RF Carrier 28"}, {29,"Primary Scan next on RF Carrier 29"}, {30,"Primary Scan next on RF Carrier 30"}, {31,"Primary Scan next on RF Carrier 31"}, {32,"Primary Scan next on RF Carrier 32"}, {33,"Primary Scan next on RF Carrier 33"}, {34,"Primary Scan next on RF Carrier 34"}, {35,"Primary Scan next on RF Carrier 35"}, {36,"Primary Scan next on RF Carrier 36"}, {37,"Primary Scan next on RF Carrier 37"}, {38,"Primary Scan next on RF Carrier 38"}, {39,"Primary Scan next on RF Carrier 39"}, {40,"Primary Scan next on RF Carrier 40"}, {41,"Primary Scan next on RF Carrier 41"}, {42,"Primary Scan next on RF Carrier 42"}, {43,"Primary Scan next on RF Carrier 43"}, {44,"Primary Scan next on RF Carrier 44"}, {45,"Primary Scan next on RF Carrier 45"}, {46,"Primary Scan next on RF Carrier 46"}, {47,"Primary Scan next on RF Carrier 47"}, {48,"Primary Scan next on RF Carrier 48"}, {49,"Primary Scan next on RF Carrier 49"}, {50,"Primary Scan next on RF Carrier 50"}, {51,"Primary Scan next on RF Carrier 51"}, {52,"Primary Scan next on RF Carrier 52"}, {53,"Primary Scan next on RF Carrier 53"}, {54,"Primary Scan next on RF Carrier 54"}, {55,"Primary Scan next on RF Carrier 55"}, {56,"Primary Scan next on RF Carrier 56"}, {57,"Primary Scan next on RF Carrier 57"}, {58,"Primary Scan next on RF Carrier 58"}, {59,"Primary Scan next on RF Carrier 59"}, {60,"Primary Scan next on RF Carrier 60"}, {61,"Primary Scan next on RF Carrier 61"}, {62,"Primary Scan next on RF Carrier 62"}, {63,"Primary Scan next on RF Carrier 63"}, {0,NULL} }; const value_string Qt_A12_vals[]= { {0,""}, {1,"Extended FP Info"}, {0,NULL} }; const value_string Qt_A13_vals[]= { {0,""}, {1,"Double Duplex Bearer Connections"}, {0,NULL} }; const value_string Qt_A14_vals[]= { {0,""}, {1,"Reserved"}, {0,NULL} }; const value_string Qt_A15_vals[]= { {0,""}, {1,"Double Slot"}, {0,NULL} }; const value_string Qt_A16_vals[]= { {0,""}, {1,"Half Slot"}, {0,NULL} }; const value_string Qt_A17_vals[]= { {0,""}, {1,"Full Slot"}, {0,NULL} }; const value_string Qt_A18_vals[]= { {0,""}, {1,"Frequency Control"}, {0,NULL} }; const value_string Qt_A19_vals[]= { {0,""}, {1,"Page Repetition"}, {0,NULL} }; const value_string Qt_A20_vals[]= { {0,""}, {1,"C/O Setup on Dummy allowed"}, {0,NULL} }; const value_string Qt_A21_vals[]= { {0,""}, {1,"C/L Uplink"}, {0,NULL} }; const value_string Qt_A22_vals[]= { {0,""}, {1,"C/L Downlink"}, {0,NULL} }; const value_string Qt_A23_vals[]= { {0,""}, {1,"Basic A-Field Set-Up"}, {0,NULL} }; const value_string Qt_A24_vals[]= { {0,""}, {1,"Advanced A-Field Set-Up"}, {0,NULL} }; const value_string Qt_A25_vals[]= { {0,""}, {1,"B-field Set-Up"}, {0,NULL} }; const value_string Qt_A26_vals[]= { {0,""}, {1,"Cf Messages"}, {0,NULL} }; const value_string Qt_A27_vals[]= { {0,""}, {1,"In Minimum Delay"}, {0,NULL} }; const value_string Qt_A28_vals[]= { {0,""}, {1,"In Normal Delay"}, {0,NULL} }; const value_string Qt_A29_vals[]= { {0,""}, {1,"Ip Error Detection"}, {0,NULL} }; const value_string Qt_A30_vals[]= { {0,""}, {1,"Ip Error Correction"}, {0,NULL} }; const value_string Qt_A31_vals[]= { {0,""}, {1,"Multibearer Connections"}, {0,NULL} }; const value_string MTHead_vals[]= { {0,"Basic Connection Control"}, {1,"Advanced Connection Control"}, {2,"MAC Layer Test Messages"}, {3,"Quality Control"}, {4,"Broadcast and Connectionless Services"}, {5,"Encryption Control"}, {6,"Tail for use with the first Transmission of a B-Field \"bearer request\" Message"}, {7,"Escape"}, {8,"TARI Message"}, {9,"REP Connection Control"}, {10,"Reserved"}, {11,"Reserved"}, {12,"Reserved"}, {13,"Reserved"}, {14,"Reserved"}, {15,"Reserved"}, {0,NULL} }; const value_string MTBasicConCtrl_vals[]= { {0,"Access Request"}, {1,"Bearer Handover Request"}, {2,"Connection Handover Request"}, {3,"Unconfirmed Access Request"}, {4,"Bearer Confirm"}, {5,"Wait"}, {6,"Attributes T Request"}, {7,"Attributes T Confirm"}, {8,"Reserved"}, {9,"Reserved"}, {10,"Reserved"}, {11,"Reserved"}, {12,"Reserved"}, {13,"Reserved"}, {14,"Reserved"}, {15,"Release"}, {0,NULL} }; const value_string MTEncrCmd1_vals[]= { {0,"Start Encryption"}, {1,"Stop Encryption"}, {2,"reserved"}, {3,"reserved"}, {0,NULL} }; const value_string MTEncrCmd2_vals[]= { {0,"Request"}, {1,"Confirm"}, {2,"Grant"}, {3,"Reserved"}, {0,NULL} }; const value_string PTExtFlag_vals[]= { {0,"bla1"}, {1,"bla2"}, {0,NULL} }; const value_string PTSDU_vals[]= { {0,"Zero Length Page"}, {1,"Short Page"}, {2,"Full Page"}, {3,"MAC resume page"}, {4,"Not the last 36 Bits of a Long Page"}, {5,"The first 36 Bits of a Long Page"}, {6,"The last 36 Bits of a Long Page"}, {7,"All of a Long Page (first and last)"}, {0,NULL} }; const value_string PTInfoType_vals[]= { {0,"Fill Bits"}, {1,"Blind Full Slot Information for Circuit Mode Service"}, {2,"Other Bearer"}, {3,"Recommended Other Bearer"}, {4,"Good RFP Bearer"}, {5,"Dummy or connectionless Bearer Position"}, {6,"Extended Modulation Types"}, {7,"Escape"}, {8,"Dummy or connectionless Bearer Marker"}, {9,"Bearer Handover/Replacement Information"}, {10,"RFP Status and Modulation Types"}, {11,"Active Carriers"}, {12,"Connectionless Bearer Position"}, {13,"RFP Power Level"}, {14,"Blind Double Slot/RFP-FP Interface Resource Information"}, {15,"Blind Full Slot Information for Packet Mode Service"}, {0,NULL} }; const value_string PTRFPPower_vals[]= { {0,"0 dBm"}, {1,"2 dBm"}, {2,"4 dBm"}, {3,"6 dBm"}, {4,"8 dBm"}, {5,"10 dBm"}, {6,"12 dBm"}, {7,"14 dBm"}, {8,"16 dBm"}, {9,"18 dBm"}, {10,"20 dBm"}, {11,"22 dBm"}, {12,"24 dBm"}, {13,"26 dBm"}, {14,"28 dBm"}, {15,"30 dBm"} }; unsigned char getbit(guint8 *data,int bit) { guint8 c; guint8 byte=data[bit/8]; c=1; c<<=bit%8; return (byte&c)>>bit%8; } void setbit(guint8 *data,int bit,guint8 value) { if(!value) data[bit/8]&=~(1<<(bit%8)); else data[bit/8]|=(1<<(bit%8)); } guint8 calc_xcrc(guint8* data,guint8 length) { guint8 bits[21]; guint8 gp=0x1; guint8 div; guint8 next; int y,x; for(y=0;y<80;y++) { setbit(bits,y,getbit(data,y+48*(1+(int)(y/16)))); } length=10; div=bits[0]; y=0; while(y7) break; } if(x>7) break; div<<=1; div|=!!(next&0x80); next<<=1; x++; div^=(gp<<4); } } /* div^=0x10; */ return div; } guint16 calc_rcrc(guint8* data) { guint16 gp=0x0589; /* 10000010110001001 without the leading 1 */ guint16 div; guint8 next; int y,x; div=data[0]<<8|data[1]; y=0; while(y<6) { next=data[2+y]; y++; x=0; while(x<8) { while(!(div&0x8000)) { div<<=1; div|=!!(next&0x80); next<<=1; x++; if(x>7) break; } if(x>7) break; div<<=1; div|=!!(next&0x80); next<<=1; x++; div^=gp; } } div^=1; return div; } gint dissect_bfield(BOOL type _U_,struct dect_afield *pkt_afield,struct dect_bfield *pkt_bfield,packet_info *pinfo,guint8 *pkt_ptr _U_,tvbuff_t *tvb,proto_item *ti _U_,proto_tree *DectTree,gint offset) { guint8 xcrc,xcrclen; guint16 blen; gint oldoffset,fn; proto_item *bfieldti =NULL; #if 0 proto_item *bxcrc =NULL; #endif proto_tree *BField =NULL; /* B-Feld anlegen */ switch((pkt_afield->Header&0x0E)>>1) { case 0: case 1: case 3: case 5: case 6: blen=40; xcrclen=4; if(check_col(pinfo->cinfo,COL_DEF_NET_DST)) { col_append_str(pinfo->cinfo,COL_DEF_NET_DST,"Full Slot"); } break; case 2: blen=100; xcrclen=4; if(check_col(pinfo->cinfo,COL_DEF_NET_DST)) { col_append_str(pinfo->cinfo,COL_DEF_NET_DST,"Double Slot"); } break; case 4: blen=10; xcrclen=4; if(check_col(pinfo->cinfo,COL_DEF_NET_DST)) { col_append_str(pinfo->cinfo,COL_DEF_NET_DST,"Half Slot"); } break; case 7: blen=0; xcrclen=0; if(check_col(pinfo->cinfo,COL_DEF_NET_DST)) { col_append_str(pinfo->cinfo,COL_DEF_NET_DST,"No B-Field"); } break; default: /* can't happen but makes gcc happy */ blen=0; xcrclen=0; break; } if(blen) { bfieldti = proto_tree_add_uint_format(DectTree,hf_dect_B,tvb,offset,40,0/*0x2323*/,"B-Field"); BField = proto_item_add_subtree(bfieldti,subtree_bfield); } oldoffset=offset; if((blen+(xcrclen/8)+1)<=pkt_bfield->Length) { guint16 x,y=0; for(x=0;x=blen) break; sprintf(string,"%s%.2x ",string,pkt_bfield->Data[x+y]); } proto_tree_add_uint_format(BField,hf_dect_B_Data,tvb,offset,y,0x2323,"Data: %s",string); if(y==16) offset+=16; else offset+=16-y; } for(fn=0;fn<8;fn++) { guint16 bytecount=0; proto_tree_add_uint_format(BField,hf_dect_B_Data,tvb,offset,y,0x2323,"\n"); offset=oldoffset; proto_tree_add_uint_format(BField,hf_dect_B_Data,tvb,offset,y,0x2323,"Framenumber %u/%u",fn,fn+8); for(x=0;x=blen) break; sprintf(string,"%s%.2x ",string,pkt_bfield->Data[x+y]^scrt[fn][bytecount%31]); bytecount++; } proto_tree_add_uint_format(BField,hf_dect_B_Data,tvb,offset,y,0x2323,"Data: %s",string); if(y==16) offset+=16; else offset+=16-y; } } xcrc=calc_xcrc(pkt_bfield->Data,83); if(xcrc!=(pkt_bfield->Data[40]&0xf0)) proto_tree_add_uint_format(bfieldti,hf_dect_B_XCRC,tvb,offset,1,0,"X-CRC Error (Calc:%.2x,Recv:%.2x)",xcrc,pkt_bfield->Data[40]&0xf0); else proto_tree_add_uint_format(bfieldti,hf_dect_B_XCRC,tvb,offset,1,1,"X-CRC Match (Calc:%.2x,Recv:%.2x)",xcrc,pkt_bfield->Data[40]&0xf0); } else proto_tree_add_uint_format(BField,hf_dect_B_Data,tvb,offset,0,0x2323,"Data too Short"); return offset; } void dissect_decttype(BOOL type,struct dect_afield *pkt_afield,struct dect_bfield *pkt_bfield,packet_info *pinfo,guint8 *pkt_ptr,tvbuff_t *tvb,proto_item *ti,proto_tree *DectTree) { char string[30]; guint16 rcrc; guint8 rcrcdat[8]; gint offset=11; proto_item *afieldti =NULL; proto_item *aheadti =NULL; proto_item *atailti =NULL; #if 0 proto_item *arcrc =NULL; proto_item *aqtti =NULL; #endif proto_tree *AField =NULL; proto_tree *AHead =NULL; proto_tree *ATail =NULL; #if 0 proto_tree *AQT =NULL; #endif /* ******************************************** A-Field ******************************************** */ /* A-Feld */ afieldti = proto_tree_add_uint_format(DectTree,hf_dect_A,tvb,offset,8,0/*0x2323*/,"A-Field"); AField = proto_item_add_subtree(afieldti,subtree_afield); /* Header */ aheadti = proto_tree_add_uint_format(afieldti,hf_dect_A_Head,tvb,offset,1,0x2323,"Header"); AHead = proto_item_add_subtree(aheadti,subtree_ahead); proto_tree_add_uint(AHead,hf_dect_A_Head_TA,tvb,offset,1,pkt_afield->Header); proto_tree_add_uint(AHead,hf_dect_A_Head_Q1,tvb,offset,1,pkt_afield->Header); proto_tree_add_uint(AHead,hf_dect_A_Head_BA,tvb,offset,1,pkt_afield->Header); proto_tree_add_uint(AHead,hf_dect_A_Head_Q2,tvb,offset,1,pkt_afield->Header); offset++; /* Tail */ atailti = proto_tree_add_uint_format(afieldti,hf_dect_A_Tail,tvb,offset,5,0x2323,"Tail: %s",TA_vals[(pkt_afield->Header&0xE0)>>5].strptr); ATail = proto_item_add_subtree(atailti,subtree_atail); switch((pkt_afield->Header&0xE0)>>5) { case 0: /* Ct */ case 1: if(check_col(pinfo->cinfo,COL_HPUX_SUBSYS)) col_set_str(pinfo->cinfo,COL_HPUX_SUBSYS,"[Ct]"); break; case 2: /* Nt */ case 3: /* Nt connectionless bearer */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) { sprintf(string,"RFPI:%.2x%.2x%.2x%.2x%.2x" ,pkt_afield->Tail[0],pkt_afield->Tail[1],pkt_afield->Tail[2] ,pkt_afield->Tail[3],pkt_afield->Tail[4]); col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,string); offset+=5; /* wegen addition weiter unten */ offset-=5; } if(check_col(pinfo->cinfo,COL_HPUX_SUBSYS)) col_set_str(pinfo->cinfo,COL_HPUX_SUBSYS,"[Nt]"); proto_tree_add_uint_format(atailti,hf_dect_A_Tail_Nt,tvb,offset,5,0x2323,"RFPI:%.2x%.2x%.2x%.2x%.2x" ,pkt_afield->Tail[0],pkt_afield->Tail[1],pkt_afield->Tail[2],pkt_afield->Tail[3] ,pkt_afield->Tail[4]); break; case 4: /* Qt */ if(check_col(pinfo->cinfo,COL_HPUX_SUBSYS)) col_set_str(pinfo->cinfo,COL_HPUX_SUBSYS,"[Qt]"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_Qh,tvb,offset,1,(pkt_afield->Tail[0])); switch(pkt_afield->Tail[0]>>4) { case 0: /* Static System Info */ case 1: if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Static System Info"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Nr,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Sn,tvb,offset,1,(pkt_afield->Tail[0])); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Sp,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Esc,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Txs,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Mc,tvb,offset,1,(pkt_afield->Tail[1])); offset++; proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,2,0x2323," Carrier%s%s%s%s%s%s%s%s%s%s available", (pkt_afield->Tail[1]&0x02)?" 0":"",(pkt_afield->Tail[1]&0x01)?" 1":"",(pkt_afield->Tail[2]&0x80)?" 2":"", (pkt_afield->Tail[2]&0x40)?" 3":"",(pkt_afield->Tail[2]&0x20)?" 4":"",(pkt_afield->Tail[2]&0x10)?" 5":"", (pkt_afield->Tail[2]&0x08)?" 6":"",(pkt_afield->Tail[2]&0x04)?" 7":"",(pkt_afield->Tail[2]&0x02)?" 8":"", (pkt_afield->Tail[2]&0x01)?" 9":""); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Spr1,tvb,offset,1,(pkt_afield->Tail[3])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Cn,tvb,offset,1,(pkt_afield->Tail[3])); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_Spr2,tvb,offset,1,(pkt_afield->Tail[4])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_0_PSCN,tvb,offset,1,(pkt_afield->Tail[4])); offset++; /* wegen addition weiter unten */ offset-=5; break; case 2: /* Extended RF Carriers Part 1 */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Extended RF Carriers Part 1"); break; case 3: /* Fixed Part Capabilities */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Fixed Part Capabilities"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A12,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A13,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A14,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A15,tvb,offset,1,(pkt_afield->Tail[0])); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A16,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A17,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A18,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A19,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A20,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A21,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A22,tvb,offset,1,(pkt_afield->Tail[1])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A23,tvb,offset,1,(pkt_afield->Tail[1])); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A24,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A25,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A26,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A27,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A28,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A29,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A30,tvb,offset,1,(pkt_afield->Tail[2])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Qt_3_A31,tvb,offset,1,(pkt_afield->Tail[2])); offset++; offset+=2; /* wegen addition weiter unten */ offset-=5; break; case 4: /* Extended Fixed Part Capabilities */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Extended Fixed Part Capabilities"); break; case 5: /* SARI List Contents */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"SARI List Contents"); break; case 6: /* Multi-Frame No. */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Multi-Frame No."); break; case 7: /* Escape */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Escape"); break; case 8: /* Obsolete */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Obsolete"); break; case 9: /* Extended RF Carriers Part 2 */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Extended RF Carriers Part 2"); break; case 10: /* Reserved(?) */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Reserved(?)"); break; case 11: /* Transmit Information(?) */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Transmit Information(?)"); break; case 12: /* Reserved */ case 13: case 14: case 15: if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Reserved"); break; } break; case 5: /* Escape */ break; case 6: /* Mt */ if(check_col(pinfo->cinfo,COL_HPUX_SUBSYS)) col_set_str(pinfo->cinfo,COL_HPUX_SUBSYS,"[Mt]"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,1,(pkt_afield->Tail[0])); switch(pkt_afield->Tail[0]>>4) { case 0: /* Basic Connection Control */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Basic Connection Control"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Mt_BasicConCtrl,tvb,offset,1,(pkt_afield->Tail[0])); offset++; if(((pkt_afield->Tail[0]&&0x0f)==6)||((pkt_afield->Tail[0]&&0x0f)==7)) { proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,5,0x2323,"hier sollten attribute stehn..."); } else { proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,2,0x2323,"FMID:%.3x",(pkt_afield->Tail[1]<<4)|(pkt_afield->Tail[2]>>4)); offset++; proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,3,0x2323,"PMID:%.5x",((pkt_afield->Tail[2]&0x0f)<<16)|(pkt_afield->Tail[3]<<8)|pkt_afield->Tail[4]); offset+=3; } /* wegen addition weiter unten */ offset-=5; break; case 1: /* Advanced Connection Control */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Advanced Connection Control"); break; case 2: /* MAC Layer Test Messages */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"MAC Layer Test Messages"); break; case 3: /* Quality Control */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Quality Control"); break; case 4: /* Broadcast and Connectionless Services */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Broadcast and Connectionless Services"); break; case 5: /* Encryption Control */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Encryption Control"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Mt_Encr_Cmd1,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Mt_Encr_Cmd2,tvb,offset,1,(pkt_afield->Tail[0])); offset++; proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,2,0x2323,"FMID:%.3x",(pkt_afield->Tail[1]<<4)|(pkt_afield->Tail[2]>>4)); offset++; proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Mt_Mh,tvb,offset,3,0x2323,"PMID:%.5x",((pkt_afield->Tail[2]&0x0f)<<16)|(pkt_afield->Tail[3]<<8)|pkt_afield->Tail[4]); offset+=3; /* wegen addition weiter unten */ offset-=5; break; case 6: /* Tail for use with the first Transmission of a B-Field \"bearer request\" Message */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Tail for use with the first Transmission of a B-Field \"bearer request\" Message"); break; case 7: /* Escape */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Escape"); break; case 8: /* TARI Message */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"TARI Message"); break; case 9: /* REP Connection Control */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"REP Connection Control"); break; case 10: /* Reserved */ case 11: case 12: case 13: case 14: case 15: if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Reserved"); break; } break; case 7: /* Pt */ if(check_col(pinfo->cinfo,COL_HPUX_SUBSYS)) col_set_str(pinfo->cinfo,COL_HPUX_SUBSYS,"[Pt]"); proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_ExtFlag,tvb,offset,1,(pkt_afield->Tail[0])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_SDU,tvb,offset,1,(pkt_afield->Tail[0])); switch((pkt_afield->Tail[0]&0x70)>>4) { case 0: /* Zero Length Page */ case 1: /* Short Page */ if(((pkt_afield->Tail[0]&0x70)>>4)==0) { if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Zero Length Page: "); proto_tree_add_uint_format(atailti,hf_dect_A_Tail_Pt_InfoType,tvb,offset,3,0x2323,"RFPI:xxxxx%.1x%.2x%.2x",(pkt_afield->Tail[0]&0x0f),pkt_afield->Tail[1],pkt_afield->Tail[2]); offset+=3; proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_InfoType,tvb,offset,1,(pkt_afield->Tail[3])); } else { if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Short Page: "); proto_tree_add_uint_format(atailti,hf_dect_A_Tail_Pt_InfoType,tvb,offset,3,0x2323,"Bs Data:%.1x%.2x%.2x",(pkt_afield->Tail[0]&0x0f),pkt_afield->Tail[1],pkt_afield->Tail[2]); offset+=3; proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_InfoType,tvb,offset,1,(pkt_afield->Tail[3])); } switch(pkt_afield->Tail[3]>>4) { case 0: /* Fill Bits */ proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Pt_Fill_Fillbits,tvb,offset,2,0x2323,"Fillbits:%.1x%.2x",pkt_afield->Tail[3]&0x0f,pkt_afield->Tail[4]); offset+=2; break; case 1: /* Blind Full Slot Information for Circuit Mode Service */ case 7: /* Escape */ case 8: /* Dummy or connectionless Bearer Marker */ proto_tree_add_uint_format(ATail,hf_dect_A_Tail_Pt_InfoType,tvb,offset,2,0x2323," Slot-Pairs:%s%s%s%s%s%s%s%s%s%s%s%s available", (pkt_afield->Tail[3]&0x08)?" 0/12":"",(pkt_afield->Tail[3]&0x04)?" 1/13":"",(pkt_afield->Tail[3]&0x02)?" 2/14":"", (pkt_afield->Tail[3]&0x01)?" 3/15":"",(pkt_afield->Tail[4]&0x80)?" 4/16":"",(pkt_afield->Tail[4]&0x40)?" 5/17":"", (pkt_afield->Tail[4]&0x20)?" 6/18":"",(pkt_afield->Tail[4]&0x10)?" 7/19":"",(pkt_afield->Tail[4]&0x08)?" 8/20":"", (pkt_afield->Tail[4]&0x04)?" 9/21":"",(pkt_afield->Tail[4]&0x02)?" 10/22":"",(pkt_afield->Tail[4]&0x01)?" 11/23":""); offset+=2; break; case 2: /* Other Bearer */ case 3: /* Recommended Other Bearer */ case 4: /* Good RFP Bearer */ case 5: /* Dummy or connectionless Bearer Position */ case 12: /* Connectionless Bearer Position */ proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_Bearer_Sn,tvb,offset,1,(pkt_afield->Tail[3])); offset++; proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_Bearer_Sp,tvb,offset,1,(pkt_afield->Tail[4])); proto_tree_add_uint(ATail,hf_dect_A_Tail_Pt_Bearer_Cn,tvb,offset,1,(pkt_afield->Tail[4])); offset++; break; case 6: /* Extended Modulation Types */ offset+=2; break; case 9: /* Bearer Handover/Replacement Information */ offset+=2; break; case 10: /* RFP Status and Modulation Types */ offset+=2; break; case 11: /* Active Carriers */ offset+=2; break; case 13: /* RFP Power Level */ offset+=2; break; case 14: /* Blind Double Slot/RFP-FP Interface Resource Information */ offset+=2; break; case 15: /* Blind Full Slot Information for Packet Mode Service */ offset+=2; break; } /* wegen addition weiter unten */ offset-=5; break; case 2: /* Full Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Full Page: "); break; case 3: /* MAC Resume Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"MAC Resume Page: "); break; case 4: /* Not the Last 36 Bits of a Long Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"Not the Last 36 Bits: "); break; case 5: /* The First 36 Bits of a Long Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"The First 36 Bits: "); break; case 6: /* The Last 36 Bits of a Long Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"The Last 36 Bits: "); break; case 7: /* All of a Long Page */ if(check_col(pinfo->cinfo,COL_DEF_NET_SRC)) col_append_str(pinfo->cinfo,COL_DEF_NET_SRC,"All of a Long Page: "); break; } break; } offset+=5; /* R-CRC */ memcpy(rcrcdat,pkt_ptr,6); rcrcdat[6]=0; rcrcdat[7]=0; rcrc=calc_rcrc(rcrcdat); if(rcrc!=pkt_afield->RCRC) proto_tree_add_uint_format(afieldti,hf_dect_A_RCRC,tvb,offset,2,0,"R-CRC Error (Calc:%.4x,Recv:%.4x)",rcrc,pkt_afield->RCRC); else proto_tree_add_uint_format(afieldti,hf_dect_A_RCRC,tvb,offset,2,1,"R-CRC Match (Calc:%.4x,Recv:%.4x)",rcrc,pkt_afield->RCRC); offset+=2; /* ******************************************** B-Field ******************************************** */ offset=dissect_bfield(type,pkt_afield,pkt_bfield,pinfo,pkt_ptr,tvb,ti,DectTree,offset); } static void dissect_dect(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint16 type; guint16 pkt_len; guint8 *pkt_ptr; struct dect_afield pkt_afield; struct dect_bfield pkt_bfield; /* Packet pointer holen */ pkt_len=tvb_length(tvb); if(pkt_len>140) pkt_len=140; if(pkt_len<13) { if(check_col(pinfo->cinfo,COL_PROTOCOL)) { col_set_str(pinfo->cinfo,COL_PROTOCOL,"No Data"); } return; } pkt_ptr=(guint8*)tvb_get_ptr(tvb,11,pkt_len-11); /* fill A-Field */ pkt_afield.Header=pkt_ptr[0]; memcpy((char*)(&(pkt_afield.Tail)),(char*)(pkt_ptr+1),5); pkt_afield.RCRC=(((guint16)pkt_ptr[6])<<8)|pkt_ptr[7]; /* fill B-Field */ if(pkt_len>13) memcpy((char*)(&(pkt_bfield.Data)),(char*)(pkt_ptr+8),pkt_len-5-8); else memset((char*)(&(pkt_bfield.Data)),0,128); pkt_bfield.Length=pkt_len-13; if(check_col(pinfo->cinfo,COL_PROTOCOL)) col_set_str(pinfo->cinfo, COL_PROTOCOL,"DECT"); /* Clear out stuff in the info column */ if(check_col(pinfo->cinfo,COL_INFO)) { col_clear(pinfo->cinfo,COL_INFO); } if(tree) { proto_item *ti =NULL; proto_item *typeti =NULL; proto_tree *DectTree =NULL; gint offset=0; ti=proto_tree_add_item(tree,proto_dect,tvb,0,-1,FALSE); DectTree=proto_item_add_subtree(ti,subtree_dect); proto_tree_add_item(DectTree,hf_dect_transceivermode,tvb,offset,1,FALSE); offset++; proto_tree_add_item(DectTree,hf_dect_channel,tvb,offset,1,FALSE); offset++; proto_tree_add_item(DectTree,hf_dect_slot,tvb,offset,2,FALSE); offset+=2; proto_tree_add_item(DectTree,hf_dect_framenumber,tvb,offset,1,FALSE); offset++; proto_tree_add_item(DectTree,hf_dect_rssi,tvb,offset,1,FALSE); offset++; proto_tree_add_item(DectTree,hf_dect_preamble,tvb,offset,3,FALSE); offset+=3; typeti=proto_tree_add_item(DectTree,hf_dect_type,tvb,offset,2,FALSE); type=tvb_get_ntohs(tvb, offset); offset+=2; switch(type) { case 0x1675: if(check_col(pinfo->cinfo,COL_PROTOCOL)) { col_set_str(pinfo->cinfo,COL_PROTOCOL,"DECT PP"); } proto_item_append_text(typeti," Phone Packet"); dissect_decttype(0,&pkt_afield,&pkt_bfield,pinfo,pkt_ptr,tvb,ti,DectTree); break; case 0xe98a: if(check_col(pinfo->cinfo,COL_PROTOCOL)) { col_set_str(pinfo->cinfo,COL_PROTOCOL,"DECT RFP"); } proto_item_append_text(typeti," Station Packet"); dissect_decttype(1,&pkt_afield,&pkt_bfield,pinfo,pkt_ptr,tvb,ti,DectTree); break; default: if(check_col(pinfo->cinfo,COL_PROTOCOL)) { col_set_str(pinfo->cinfo,COL_PROTOCOL,"DECT Unk"); } proto_item_append_text(typeti," Unknown Packet"); break; } } } void proto_register_dect(void) { static hf_register_info hf[]= { { &hf_dect_transceivermode, {"Tranceiver-Mode","dect.tranceivermode",FT_UINT8,BASE_HEX,VALS(tranceiver_mode),0x0,NULL,HFILL} }, { &hf_dect_channel, {"Channel","dect.channel",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL} }, { &hf_dect_framenumber, {"Frame#","dect.framenumber",FT_UINT16,BASE_DEC,NULL,0x0,NULL,HFILL} }, { &hf_dect_rssi, {"RSSI","dect.rssi",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL} }, { &hf_dect_slot, {"Slot","dect.slot",FT_UINT16,BASE_DEC,NULL,0x0,NULL,HFILL} }, { &hf_dect_preamble, {"Preamble","dect.preamble",FT_BYTES,BASE_NONE,NULL,0x0,NULL,HFILL} }, { &hf_dect_type, {"Packet-Type","dect.type",FT_BYTES,BASE_NONE,NULL,0x0,NULL,HFILL} }, /* *********************************************** A-Field *********************************************** */ /* ***** Header ***** */ { &hf_dect_A, {"A-Field","dect.afield", FT_UINT8, BASE_DEC, NULL, 0x0,"", HFILL} }, { &hf_dect_A_Head, {"A-Field Header","dect.afield.head",FT_UINT8,BASE_DEC, NULL, 0x0,"",HFILL} }, { &hf_dect_A_Head_TA, {"TA","dect.afield.head.TA",FT_UINT8,BASE_DEC,VALS(TA_vals),0xE0,"",HFILL} }, { &hf_dect_A_Head_Q1, {"Q1","dect.afield.head.Q1",FT_UINT8,BASE_DEC,NULL ,0x10,"",HFILL} }, { &hf_dect_A_Head_BA, {"BA","dect.afield.head.BA",FT_UINT8,BASE_DEC,VALS(BA_vals),0x0E,"",HFILL} }, { &hf_dect_A_Head_Q2, {"Q2","dect.afield.head.Q2",FT_UINT8,BASE_DEC,NULL ,0x01,"",HFILL} }, /* ***** Tail ***** */ { &hf_dect_A_Tail, {"A-Field Tail","dect.afield.tail",FT_UINT8,BASE_DEC, NULL, 0x0,"",HFILL} }, /* Nt */ { &hf_dect_A_Tail_Nt, {"A-Field Header","dect.afield.tail.Nt",FT_UINT8,BASE_DEC, NULL, 0x0,"",HFILL} }, /* Qt */ { &hf_dect_A_Tail_Qt_Qh, {"Qh","dect.afield.tail.Qt.Qh",FT_UINT8,BASE_DEC,VALS(QTHead_vals) ,0xF0,"",HFILL} }, /* Qt Static System Information */ /* Byte 0 */ { &hf_dect_A_Tail_Qt_0_Nr, {"NR","dect.afield.tail.Qt.NR",FT_UINT8,BASE_DEC,VALS(QTNormalReverse_vals) ,0x10,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_Sn, {"SN","dect.afield.tail.Qt.SN",FT_UINT8,BASE_DEC,VALS(QTSlotNumber_vals) ,0x0F,"",HFILL} }, /* Byte 1 */ { &hf_dect_A_Tail_Qt_0_Sp, {"SP","dect.afield.tail.Qt.SP",FT_UINT8,BASE_DEC,VALS(QTStartPosition_vals) ,0xC0,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_Esc, {"Esc","dect.afield.tail.Qt.Esc",FT_UINT8,BASE_DEC,VALS(QTEscape_vals) ,0x20,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_Txs, {"Txs","dect.afield.tail.Qt.Txs",FT_UINT8,BASE_DEC,VALS(QTTranceiver_vals) ,0x18,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_Mc, {"Mc","dect.afield.tail.Qt.Mc",FT_UINT8,BASE_DEC,VALS(QTExtendedCarrier_vals) ,0x04,"",HFILL} }, /* Byte 3 */ { &hf_dect_A_Tail_Qt_0_Spr1, {"Spr","dect.afield.tail.Qt.Spr1",FT_UINT8,BASE_DEC,VALS(QTSpr_vals) ,0xC0,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_Cn, {"CN","dect.afield.tail.Qt.CN",FT_UINT8,BASE_DEC,VALS(QTCarrierNumber_vals) ,0x3F,"",HFILL} }, /* Byte 4 */ { &hf_dect_A_Tail_Qt_0_Spr2, {"Spr","dect.afield.tail.Qt.Spr2",FT_UINT8,BASE_DEC,VALS(QTSpr_vals) ,0xC0,"",HFILL} }, { &hf_dect_A_Tail_Qt_0_PSCN, {"PSCN","dect.afield.tail.Qt.PSCN",FT_UINT8,BASE_DEC,VALS(QTScanCarrierNum_vals) ,0x3F,"",HFILL} }, /* Qt Fixed Part Capabilities */ { &hf_dect_A_Tail_Qt_3_A12, {"A12","dect.afield.tail.Qt.Fp.A12",FT_UINT8,BASE_DEC,VALS(Qt_A12_vals) ,0x08,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A13, {"A13","dect.afield.tail.Qt.Fp.A13",FT_UINT8,BASE_DEC,VALS(Qt_A13_vals) ,0x04,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A14, {"A14","dect.afield.tail.Qt.Fp.A14",FT_UINT8,BASE_DEC,VALS(Qt_A14_vals) ,0x02,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A15, {"A15","dect.afield.tail.Qt.Fp.A15",FT_UINT8,BASE_DEC,VALS(Qt_A15_vals) ,0x01,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A16, {"A16","dect.afield.tail.Qt.Fp.A16",FT_UINT8,BASE_DEC,VALS(Qt_A16_vals) ,0x80,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A17, {"A17","dect.afield.tail.Qt.Fp.A17",FT_UINT8,BASE_DEC,VALS(Qt_A17_vals) ,0x40,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A18, {"A18","dect.afield.tail.Qt.Fp.A18",FT_UINT8,BASE_DEC,VALS(Qt_A18_vals) ,0x20,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A19, {"A19","dect.afield.tail.Qt.Fp.A19",FT_UINT8,BASE_DEC,VALS(Qt_A19_vals) ,0x10,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A20, {"A20","dect.afield.tail.Qt.Fp.A20",FT_UINT8,BASE_DEC,VALS(Qt_A20_vals) ,0x08,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A21, {"A21","dect.afield.tail.Qt.Fp.A21",FT_UINT8,BASE_DEC,VALS(Qt_A21_vals) ,0x04,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A22, {"A22","dect.afield.tail.Qt.Fp.A22",FT_UINT8,BASE_DEC,VALS(Qt_A22_vals) ,0x02,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A23, {"A23","dect.afield.tail.Qt.Fp.A23",FT_UINT8,BASE_DEC,VALS(Qt_A23_vals) ,0x01,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A24, {"A24","dect.afield.tail.Qt.Fp.A24",FT_UINT8,BASE_DEC,VALS(Qt_A24_vals) ,0x80,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A25, {"A25","dect.afield.tail.Qt.Fp.A25",FT_UINT8,BASE_DEC,VALS(Qt_A25_vals) ,0x40,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A26, {"A26","dect.afield.tail.Qt.Fp.A26",FT_UINT8,BASE_DEC,VALS(Qt_A26_vals) ,0x20,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A27, {"A27","dect.afield.tail.Qt.Fp.A27",FT_UINT8,BASE_DEC,VALS(Qt_A27_vals) ,0x10,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A28, {"A28","dect.afield.tail.Qt.Fp.A28",FT_UINT8,BASE_DEC,VALS(Qt_A28_vals) ,0x08,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A29, {"A29","dect.afield.tail.Qt.Fp.A29",FT_UINT8,BASE_DEC,VALS(Qt_A29_vals) ,0x04,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A30, {"A30","dect.afield.tail.Qt.Fp.A30",FT_UINT8,BASE_DEC,VALS(Qt_A30_vals) ,0x02,"",HFILL} }, { &hf_dect_A_Tail_Qt_3_A31, {"A31","dect.afield.tail.Qt.Fp.A31",FT_UINT8,BASE_DEC,VALS(Qt_A31_vals) ,0x01,"",HFILL} }, /* Mt */ { &hf_dect_A_Tail_Mt_Mh, {"Mh","dect.afield.tail.Mt.Mh",FT_UINT8,BASE_DEC,VALS(MTHead_vals) ,0xF0,"",HFILL} }, /* Mt Basic Connection Control */ { &hf_dect_A_Tail_Mt_BasicConCtrl, {"Cmd","dect.afield.tail.Mt.BasicConCtrl",FT_UINT8,BASE_DEC,VALS(MTBasicConCtrl_vals) ,0x0F,"",HFILL} }, /* Mt Encryption Control */ { &hf_dect_A_Tail_Mt_Encr_Cmd1, {"Cmd1","dect.afield.tail.Mt.Encr.Cmd1",FT_UINT8,BASE_DEC,VALS(MTEncrCmd1_vals) ,0x0C,"",HFILL} }, { &hf_dect_A_Tail_Mt_Encr_Cmd2, {"Cmd2","dect.afield.tail.Mt.Encr.Cmd2",FT_UINT8,BASE_DEC,VALS(MTEncrCmd2_vals) ,0x03,"",HFILL} }, /* Pt */ { &hf_dect_A_Tail_Pt_ExtFlag, {"ExtFlag","dect.afield.tail.Pt.ExtFlag",FT_UINT8,BASE_DEC,VALS(PTExtFlag_vals) ,0x80,"",HFILL} }, { &hf_dect_A_Tail_Pt_SDU, {"SDU","dect.afield.tail.Pt.SDU",FT_UINT8,BASE_DEC,VALS(PTSDU_vals) ,0x70,"",HFILL} }, { &hf_dect_A_Tail_Pt_InfoType, {"InfoType","dect.afield.tail.Pt.InfoType",FT_UINT8,BASE_DEC,VALS(PTInfoType_vals) ,0xF0,"",HFILL} }, { &hf_dect_A_Tail_Pt_Fill_Fillbits, {"FillBits","dect.afield.tail.Pt.InfoType.FillBits",FT_UINT8,BASE_DEC,NULL ,0xFF,"",HFILL} }, { &hf_dect_A_Tail_Pt_Bearer_Sn, {"SN","dect.afield.tail.Pt.SN",FT_UINT8,BASE_DEC,VALS(QTSlotNumber_vals) ,0x0F,"",HFILL} }, { &hf_dect_A_Tail_Pt_Bearer_Sp, {"SP","dect.afield.tail.Pt.SP",FT_UINT8,BASE_DEC,VALS(QTStartPosition_vals) ,0xC0,"",HFILL} }, { &hf_dect_A_Tail_Pt_Bearer_Cn, {"CN","dect.afield.tail.Pt.CN",FT_UINT8,BASE_DEC,VALS(QTCarrierNumber_vals) ,0x2F,"",HFILL} }, /* ***** R-CRC ***** */ { &hf_dect_A_RCRC, {"A-Field R-CRC","dect.afield.rcrc",FT_UINT8,BASE_DEC, NULL, 0x0,"",HFILL} }, /* *********************************************** B-Field *********************************************** */ { &hf_dect_B, {"B-Field","dect.bfield", FT_UINT8, BASE_DEC, NULL, 0x0,"", HFILL} }, { &hf_dect_B_Data, {"B-Field","dect.bfield.data", FT_UINT8, BASE_DEC, NULL, 0x0,"", HFILL} }, /* ***** X-CRC ***** */ { &hf_dect_B_XCRC, {"B-Field X-CRC","dect.bfield.xcrc",FT_UINT8,BASE_DEC, NULL, 0x0,"",HFILL} } }; /* Setup protocol subtree array */ static gint *subtree[]= { &subtree_dect, &subtree_ahead, &subtree_afield, &subtree_atail, &subtree_aqt, &subtree_bfield }; if(proto_dect==-1) { proto_dect=proto_register_protocol("DECT Protocol","DECT","dect"); } proto_register_field_array(proto_dect,hf,array_length(hf)); proto_register_subtree_array(subtree,array_length(subtree)); } void proto_reg_handoff_dect(void) { static int initialized=FALSE; if(!initialized) { dect_handle = create_dissector_handle(dissect_dect,proto_dect); dissector_add("ethertype",ETHERTYPE_DECT ,dect_handle); } }