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authorGilbert Ramirez <gram@alumni.rice.edu>2004-07-18 18:06:47 +0000
committerGilbert Ramirez <gram@alumni.rice.edu>2004-07-18 18:06:47 +0000
commit669db206cb1f270046ad400fff7655e20c63e723 (patch)
tree4eff24a2e16c8963e497e1fc575f35e6af59bd26 /packet-ppp.c
parentae46c27a38700af669ef907491081f09df6f6b2c (diff)
Move dissectors to epan/dissectors directory.
Also move ncp222.py, x11-fields, process-x11-fields.pl, make-reg-dotc, and make-reg-dotc.py. Adjust #include lines in files that include packet-*.h files. svn path=/trunk/; revision=11410
Diffstat (limited to 'packet-ppp.c')
-rw-r--r--packet-ppp.c3767
1 files changed, 0 insertions, 3767 deletions
diff --git a/packet-ppp.c b/packet-ppp.c
deleted file mode 100644
index 66962677a8..0000000000
--- a/packet-ppp.c
+++ /dev/null
@@ -1,3767 +0,0 @@
-/* packet-ppp.c
- * Routines for ppp packet disassembly
- * RFC 1661, RFC 1662
- *
- * $Id$
- *
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
- *
- * This file created and by Mike Hall <mlh@io.com>
- * Copyright 1998
- *
- * 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
-
-#include <string.h>
-#include <glib.h>
-#include "prefs.h"
-#include <epan/packet.h>
-#include "packet-ppp.h"
-#include "ppptypes.h"
-#include "etypes.h"
-#include "ip_opts.h"
-#include <epan/atalk-utils.h>
-#include "packet-chdlc.h"
-#include "packet-ip.h"
-#include "packet-ipx.h"
-#include "packet-vines.h"
-#include "nlpid.h"
-#include "crc16.h"
-#include "crc32.h"
-
-#define ppp_min(a, b) ((a<b) ? a : b)
-
-static int proto_ppp = -1;
-static int hf_ppp_address = -1;
-static int hf_ppp_control = -1;
-static int hf_ppp_protocol = -1;
-
-static gint ett_ppp = -1;
-
-static int proto_lcp = -1;
-
-static gint ett_lcp = -1;
-static gint ett_lcp_options = -1;
-static gint ett_lcp_authprot_opt = -1;
-static gint ett_lcp_qualprot_opt = -1;
-static gint ett_lcp_fcs_alternatives_opt = -1;
-static gint ett_lcp_numbered_mode_opt = -1;
-static gint ett_lcp_callback_opt = -1;
-static gint ett_lcp_multilink_ep_disc_opt = -1;
-static gint ett_lcp_internationalization_opt = -1;
-
-static int proto_ipcp = -1;
-
-static gint ett_ipcp = -1;
-static gint ett_ipcp_options = -1;
-static gint ett_ipcp_ipaddrs_opt = -1;
-static gint ett_ipcp_compressprot_opt = -1;
-
-static int proto_osicp = -1;
-
-static gint ett_osicp = -1;
-static gint ett_osicp_options = -1;
-static gint ett_osicp_align_npdu_opt = -1;
-
-static int proto_ccp = -1;
-
-static gint ett_ccp = -1;
-static gint ett_ccp_options = -1;
-static gint ett_ccp_stac_opt = -1;
-static gint ett_ccp_mppc_opt = -1;
-static gint ett_ccp_bsdcomp_opt = -1;
-static gint ett_ccp_lzsdcp_opt = -1;
-static gint ett_ccp_mvrca_opt = -1;
-static gint ett_ccp_deflate_opt = -1;
-
-static int proto_cbcp = -1;
-
-static gint ett_cbcp = -1;
-static gint ett_cbcp_options = -1;
-static gint ett_cbcp_callback_opt = -1;
-static gint ett_cbcp_callback_opt_addr = -1;
-
-static int proto_bacp = -1;
-
-static gint ett_bacp = -1;
-static gint ett_bacp_options = -1;
-static gint ett_bacp_favored_peer_opt = -1;
-
-static int proto_bap = -1;
-
-static gint ett_bap = -1;
-static gint ett_bap_options = -1;
-static gint ett_bap_link_type_opt = -1;
-static gint ett_bap_phone_delta_opt = -1;
-static gint ett_bap_phone_delta_subopt = -1;
-static gint ett_bap_call_status_opt = -1;
-
-static int proto_comp_data = -1;
-
-static gint ett_comp_data = -1;
-
-static int proto_pppmuxcp = -1;
-
-static gint ett_pppmuxcp = -1;
-static gint ett_pppmuxcp_options = -1;
-
-static int proto_pppmux = -1;
-
-static gint ett_pppmux = -1;
-static gint ett_pppmux_subframe = -1;
-static gint ett_pppmux_subframe_hdr = -1;
-static gint ett_pppmux_subframe_flags = -1;
-static gint ett_pppmux_subframe_info = -1;
-
-static int proto_mp = -1;
-static int hf_mp_frag_first = -1;
-static int hf_mp_frag_last = -1;
-static int hf_mp_sequence_num = -1;
-
-static int ett_mp = -1;
-static int ett_mp_flags = -1;
-
-static int proto_mplscp = -1;
-static gint ett_mplscp = -1;
-static gint ett_mplscp_options = -1;
-
-static int proto_cdpcp = -1;
-static gint ett_cdpcp = -1;
-static gint ett_cdpcp_options = -1;
-
-static int proto_pap = -1; /* PAP vars */
-static gint ett_pap = -1;
-static gint ett_pap_data = -1;
-static gint ett_pap_peer_id = -1;
-static gint ett_pap_password = -1;
-static gint ett_pap_message = -1;
-
-static int proto_chap = -1; /* CHAP vars */
-static gint ett_chap = -1;
-static gint ett_chap_data = -1;
-static gint ett_chap_value = -1;
-static gint ett_chap_name = -1;
-static gint ett_chap_message = -1;
-
-static int proto_ipv6cp = -1; /* IPv6CP vars */
-
-static gint ett_ipv6cp = -1;
-static gint ett_ipv6cp_options = -1;
-static gint ett_ipv6cp_if_id_opt = -1;
-static gint ett_ipv6cp_compressprot_opt = -1;
-
-static dissector_table_t ppp_subdissector_table;
-static dissector_handle_t chdlc_handle;
-static dissector_handle_t data_handle;
-
-/* options */
-static gint ppp_fcs_decode = 0; /* 0 = No FCS, 1 = 16 bit FCS, 2 = 32 bit FCS */
-#define NO_FCS 0
-#define FCS_16 1
-#define FCS_32 2
-
-const enum_val_t fcs_options[] = {
- {"none", "None", NO_FCS},
- {"16-bit", "16-Bit", FCS_16},
- {"32-bit", "32-Bit", FCS_32},
- {NULL, NULL, -1}
-};
-
-gboolean ppp_vj_decomp = TRUE; /* Default to VJ header decompression */
-
-/*
- * For Default Protocol ID negotiated with PPPMuxCP. We need to
- * this ID so that if the first subframe doesn't have protocol
- * ID, we can use it
- */
-
-static guint pppmux_def_prot_id = 0;
-
-/* PPP definitions */
-
-/*
- * Used by the GTP dissector as well.
- */
-const value_string ppp_vals[] = {
- {PPP_PADDING, "Padding Protocol" },
- {PPP_ROHC_SCID, "ROHC small-CID" },
- {PPP_ROHC_LCID, "ROHC large-CID" },
- {PPP_IP, "IP" },
- {PPP_OSI, "OSI" },
- {PPP_DEC4, "DECnet Phase IV" },
- {PPP_AT, "Appletalk" },
- {PPP_IPX, "Netware IPX/SPX"},
- {PPP_VJC_COMP, "VJ compressed TCP"},
- {PPP_VJC_UNCOMP,"VJ uncompressed TCP"},
- {PPP_BPDU, "Bridging PDU"},
- {PPP_ST, "Stream Protocol (ST-II)" },
- {PPP_VINES, "Vines" },
- {PPP_AT_EDDP, "AppleTalk EDDP" },
- {PPP_AT_SB, "AppleTalk SmartBuffered" },
- {PPP_MP, "Multilink"},
- {PPP_NB, "NETBIOS Framing" },
- {PPP_CISCO, "Cisco Systems" },
- {PPP_ASCOM, "Ascom Timeplex" },
- {PPP_LBLB, "Fujitsu Link Backup and Load Balancing" },
- {PPP_RL, "DCA Remote Lan" },
- {PPP_SDTP, "Serial Data Transport Protocol" },
- {PPP_LLC, "SNA over LLC" },
- {PPP_SNA, "SNA" },
- {PPP_IPV6HC, "IPv6 Header Compression " },
- {PPP_KNX, "KNX Bridging Data" },
- {PPP_ENCRYPT, "Encryption" },
- {PPP_ILE, "Individual Link Encryption" },
- {PPP_IPV6, "IPv6" },
- {PPP_MUX, "PPP Multiplexing"},
- {PPP_RTP_FH, "RTP IPHC Full Header" },
- {PPP_RTP_CTCP, "RTP IPHC Compressed TCP" },
- {PPP_RTP_CNTCP, "RTP IPHC Compressed Non TCP" },
- {PPP_RTP_CUDP8, "RTP IPHC Compressed UDP 8" },
- {PPP_RTP_CRTP8, "RTP IPHC Compressed RTP 8" },
- {PPP_STAMPEDE, "Stampede Bridging" },
- {PPP_MPPLUS, "MP+ Protocol" },
- {PPP_NTCITS_IPI,"NTCITS IPI" },
- {PPP_ML_SLCOMP, "single link compression in multilink" },
- {PPP_COMP, "compressed packet" },
- {PPP_STP_HELLO, "802.1d Hello Packet" },
- {PPP_IBM_SR, "IBM Source Routing BPDU" },
- {PPP_DEC_LB, "DEC LANBridge100 Spanning Tree"},
- {PPP_CDP, "Cisco Discovery Protocol" },
- {PPP_NETCS, "Netcs Twin Routing" },
- {PPP_STP, "Scheduled Transfer Protocol" },
- {PPP_EDP, "Extreme Discovery Protocol" },
- {PPP_OSCP, "Optical Supervisory Channel Protocol" },
- {PPP_OSCP2, "Optical Supervisory Channel Protocol" },
- {PPP_LUXCOM, "Luxcom" },
- {PPP_SIGMA, "Sigma Network Systems" },
- {PPP_ACSP, "Apple Client Server Protocol" },
- {PPP_MPLS_UNI, "MPLS Unicast"},
- {PPP_MPLS_MULTI, "MPLS Multicast"},
- {PPP_P12844, "IEEE p1284.4 standard - data packets" },
- {PPP_ETSI, "ETSI TETRA Networks Procotol Type 1" },
- {PPP_MFTP, "Multichannel Flow Treatment Protocol" },
- {PPP_RTP_CTCPND,"RTP IPHC Compressed TCP No Delta" },
- {PPP_RTP_CS, "RTP IPHC Context State" },
- {PPP_RTP_CUDP16,"RTP IPHC Compressed UDP 16" },
- {PPP_RTP_CRDP16,"RTP IPHC Compressed RTP 16" },
- {PPP_CCCP, "Cray Communications Control Protocol" },
- {PPP_CDPD_MNRP, "CDPD Mobile Network Registration Protocol" },
- {PPP_EXPANDAP, "Expand accelarator protocol" },
- {PPP_ODSICP, "ODSICP NCP" },
- {PPP_DOCSIS, "DOCSIS DLL" },
- {PPP_LZS, "Stacker LZS" },
- {PPP_REFTEK, "RefTek Protocol" },
- {PPP_FC, "Fibre Channel" },
- {PPP_EMIT, "EMIT Protocols" },
- {PPP_IPCP, "IP Control Protocol" },
- {PPP_OSICP, "OSI Control Protocol" },
- {PPP_XNSIDPCP, "Xerox NS IDP Control Protocol" },
- {PPP_DECNETCP, "DECnet Phase IV Control Protocol" },
- {PPP_ATCP, "AppleTalk Control Protocol" },
- {PPP_IPXCP, "IPX Control Protocol" },
- {PPP_BRIDGENCP, "Bridging NCP" },
- {PPP_SPCP, "Stream Protocol Control Protocol" },
- {PPP_BVCP, "Banyan Vines Control Protocol" },
- {PPP_MLCP, "Multi-Link Control Protocol" },
- {PPP_NBCP, "NETBIOS Framing Control Protocol" },
- {PPP_CISCOCP, "Cisco Systems Control Protocol" },
- {PPP_ASCOMCP, "Ascom Timeplex" },
- {PPP_LBLBCP, "Fujitsu LBLB Control Protocol" },
- {PPP_RLNCP, "DCA Remote Lan Network Control Protocol" },
- {PPP_SDCP, "Serial Data Control Protocol" },
- {PPP_LLCCP, "SNA over LLC Control Protocol" },
- {PPP_SNACP, "SNA Control Protocol" },
- {PPP_KNXCP, "KNX Bridging Control Protocol" },
- {PPP_ECP, "Encryption Control Protocol" },
- {PPP_ILECP, "Individual Encryption Control Protocol" },
- {PPP_IPV6CP, "IPv6 Control Protocol" },
- {PPP_MUXCP, "PPPMux Control Protocol"},
- {PPP_STAMPEDECP,"Stampede Bridging Control Protocol" },
- {PPP_MPPCP, "MP+ Contorol Protocol" },
- {PPP_IPICP, "NTCITS IPI Control Protocol" },
- {PPP_SLCC, "single link compression in multilink control" },
- {PPP_CCP, "Compression Control Protocol" },
- {PPP_CDPCP, "CDP Control Protocol" },
- {PPP_NETCSCP, "Netcs Twin Routing" },
- {PPP_STPCP, "STP - Control Protocol" },
- {PPP_EDPCP, "EDP Control Protocol" },
- {PPP_ACSPC, "Apple Client Server Protocol Control" },
- {PPP_MPLSCP, "MPLS Control Protocol" },
- {PPP_P12844CP, "IEEE p1284.4 standard - Protocol Control" },
- {PPP_ETSICP, "ETSI TETRA TNP1 Control Protocol" },
- {PPP_MFTPCP, "Multichannel Flow Treatment Protocol" },
- {PPP_LCP, "Link Control Protocol" },
- {PPP_PAP, "Password Authentication Protocol" },
- {PPP_LQR, "Link Quality Report protocol" },
- {PPP_SPAP, "Shiva Password Authentication Protocol" },
- {PPP_CBCP, "Callback Control Protocol" },
- {PPP_BACP, "Bandwidth Allocation Control Protocol" },
- {PPP_BAP, "Bandwidth Allocation Protocol" },
- {PPP_CONTCP, "Container Control Protocol" },
- {PPP_CHAP, "Challenge Handshake Authentication Protocol" },
- {PPP_RSAAP, "RSA Authentication Protocol" },
- {PPP_EAP, "Extensible Authentication Protocol" },
- {PPP_SIEP, "Mitsubishi Security Information Exchange Protocol"},
- {PPP_SBAP, "Stampede Bridging Authorization Protocol" },
- {PPP_PRPAP, "Proprietary Authentication Protocol" },
- {PPP_PRPAP2, "Proprietary Authentication Protocol" },
- {PPP_PRPNIAP, "Proprietary Node ID Authentication Protocol" },
- {0, NULL }
-};
-
-/* CP (LCP, IPCP, etc.) codes.
- * from pppd fsm.h
- */
-#define CONFREQ 1 /* Configuration Request */
-#define CONFACK 2 /* Configuration Ack */
-#define CONFNAK 3 /* Configuration Nak */
-#define CONFREJ 4 /* Configuration Reject */
-#define TERMREQ 5 /* Termination Request */
-#define TERMACK 6 /* Termination Ack */
-#define CODEREJ 7 /* Code Reject */
-
-static const value_string cp_vals[] = {
- {CONFREQ, "Configuration Request" },
- {CONFACK, "Configuration Ack" },
- {CONFNAK, "Configuration Nak" },
- {CONFREJ, "Configuration Reject" },
- {TERMREQ, "Termination Request" },
- {TERMACK, "Termination Ack" },
- {CODEREJ, "Code Reject" },
- {0, NULL } };
-
-/*
- * LCP-specific packet types.
- */
-#define PROTREJ 8 /* Protocol Reject */
-#define ECHOREQ 9 /* Echo Request */
-#define ECHOREP 10 /* Echo Reply */
-#define DISCREQ 11 /* Discard Request */
-#define IDENT 12 /* Identification */
-#define TIMEREMAIN 13 /* Time remaining */
-
-/*
- * CCP-specific packet types.
- */
-#define RESETREQ 14 /* Reset Request */
-#define RESETACK 15 /* Reset Ack */
-
-/*
- * CBCP-specific packet types.
- */
-#define CBREQ 1 /* Callback Request */
-#define CBRES 2 /* Callback Response */
-#define CBACK 3 /* Callback Ack */
-
-#define CBCP_OPT 6 /* Use callback control protocol */
-
-/*
- * BAP-specific packet types.
- */
-#define BAP_CREQ 1 /* Call Request */
-#define BAP_CRES 2 /* Call Response */
-#define BAP_CBREQ 3 /* Callback Request */
-#define BAP_CBRES 4 /* Callback Response */
-#define BAP_LDQREQ 5 /* Link Drop Query Request */
-#define BAP_LDQRES 6 /* Link Drop Query Response */
-#define BAP_CSI 7 /* Call Status Indication */
-#define BAP_CSRES 8 /* Call Status Response */
-
-static const value_string lcp_vals[] = {
- {CONFREQ, "Configuration Request" },
- {CONFACK, "Configuration Ack" },
- {CONFNAK, "Configuration Nak" },
- {CONFREJ, "Configuration Reject" },
- {TERMREQ, "Termination Request" },
- {TERMACK, "Termination Ack" },
- {CODEREJ, "Code Reject" },
- {PROTREJ, "Protocol Reject" },
- {ECHOREQ, "Echo Request" },
- {ECHOREP, "Echo Reply" },
- {DISCREQ, "Discard Request" },
- {IDENT, "Identification" },
- {TIMEREMAIN, "Time Remaining" },
- {0, NULL }
-};
-
-static const value_string ccp_vals[] = {
- {CONFREQ, "Configuration Request" },
- {CONFACK, "Configuration Ack" },
- {CONFNAK, "Configuration Nak" },
- {CONFREJ, "Configuration Reject" },
- {TERMREQ, "Termination Request" },
- {TERMACK, "Termination Ack" },
- {CODEREJ, "Code Reject" },
- {RESETREQ, "Reset Request" },
- {RESETACK, "Reset Ack" },
- {0, NULL }
-};
-
-static const value_string cbcp_vals[] = {
- {CBREQ, "Callback Request" },
- {CBRES, "Callback Response" },
- {CBACK, "Callback Ack" },
- {0, NULL }
-};
-
-static const value_string bap_vals[] = {
- {BAP_CREQ, "Call Request" },
- {BAP_CRES, "Call Response" },
- {BAP_CBREQ, "Callback Request" },
- {BAP_CBRES, "Callback Response" },
- {BAP_LDQREQ, "Link Drop Query Request" },
- {BAP_LDQRES, "Link Drop Query Response" },
- {BAP_CSI, "Call Status Indication" },
- {BAP_CSRES, "Call Status Response" },
- {0, NULL }
-};
-
-#define BAP_RESP_CODE_REQACK 0x00
-#define BAP_RESP_CODE_REQNAK 0x01
-#define BAP_RESP_CODE_REQREJ 0x02
-#define BAP_RESP_CODE_REQFULLNAK 0x03
-static const value_string bap_resp_code_vals[] = {
- {BAP_RESP_CODE_REQACK, "Request Ack" },
- {BAP_RESP_CODE_REQNAK, "Request Nak" },
- {BAP_RESP_CODE_REQREJ, "Request Rej" },
- {BAP_RESP_CODE_REQFULLNAK, "Request Full Nak" },
- {0, NULL }
-};
-
-#define BAP_LINK_TYPE_ISDN 0 /* ISDN */
-#define BAP_LINK_TYPE_X25 1 /* X.25 */
-#define BAP_LINK_TYPE_ANALOG 2 /* Analog */
-#define BAP_LINK_TYPE_SD 3 /* Switched Digital (non-ISDN) */
-#define BAP_LINK_TYPE_ISDNOV 4 /* ISDN data over voice */
-#define BAP_LINK_TYPE_RESV5 5 /* Reserved */
-#define BAP_LINK_TYPE_RESV6 6 /* Reserved */
-#define BAP_LINK_TYPE_RESV7 7 /* Reserved */
-static const value_string bap_link_type_vals[] = {
- {BAP_LINK_TYPE_ISDN, "ISDN" },
- {BAP_LINK_TYPE_X25, "X.25" },
- {BAP_LINK_TYPE_ANALOG, "Analog" },
- {BAP_LINK_TYPE_SD, "Switched Digital (non-ISDN)" },
- {BAP_LINK_TYPE_ISDNOV, "ISDN data over voice" },
- {BAP_LINK_TYPE_RESV5, "Reserved" },
- {BAP_LINK_TYPE_RESV6, "Reserved" },
- {BAP_LINK_TYPE_RESV7, "Reserved" },
- {0, NULL }
-};
-
-#define BAP_PHONE_DELTA_SUBOPT_UNIQ_DIGIT 1 /* Unique Digit */
-#define BAP_PHONE_DELTA_SUBOPT_SUBSC_NUM 2 /* Subscriber Number */
-#define BAP_PHONE_DELTA_SUBOPT_PHONENUM_SUBADDR 3 /* Phone Number Sub Address */
-static const value_string bap_phone_delta_subopt_vals[] = {
- {BAP_PHONE_DELTA_SUBOPT_UNIQ_DIGIT, "Unique Digit" },
- {BAP_PHONE_DELTA_SUBOPT_SUBSC_NUM, "Subscriber Number" },
- {BAP_PHONE_DELTA_SUBOPT_PHONENUM_SUBADDR, "Phone Number Sub Address" },
- {0, NULL }
-};
-
-/*
- * Cause codes for Cause.
- *
- * The following code table is taken from packet-q931.c but is slightly
- * adapted to BAP protocol.
- */
-static const value_string q931_cause_code_vals[] = {
- { 0x00, "Call successful" },
- { 0x01, "Unallocated (unassigned) number" },
- { 0x02, "No route to specified transit network" },
- { 0x03, "No route to destination" },
- { 0x04, "Send special information tone" },
- { 0x05, "Misdialled trunk prefix" },
- { 0x06, "Channel unacceptable" },
- { 0x07, "Call awarded and being delivered in an established channel" },
- { 0x08, "Prefix 0 dialed but not allowed" },
- { 0x09, "Prefix 1 dialed but not allowed" },
- { 0x0A, "Prefix 1 dialed but not required" },
- { 0x0B, "More digits received than allowed, call is proceeding" },
- { 0x10, "Normal call clearing" },
- { 0x11, "User busy" },
- { 0x12, "No user responding" },
- { 0x13, "No answer from user (user alerted)" },
- { 0x14, "Subscriber absent" },
- { 0x15, "Call rejected" },
- { 0x16, "Number changed" },
- { 0x17, "Reverse charging rejected" },
- { 0x18, "Call suspended" },
- { 0x19, "Call resumed" },
- { 0x1A, "Non-selected user clearing" },
- { 0x1B, "Destination out of order" },
- { 0x1C, "Invalid number format (incomplete number)" },
- { 0x1D, "Facility rejected" },
- { 0x1E, "Response to STATUS ENQUIRY" },
- { 0x1F, "Normal unspecified" },
- { 0x21, "Circuit out of order" },
- { 0x22, "No circuit/channel available" },
- { 0x23, "Destination unattainable" },
- { 0x25, "Degraded service" },
- { 0x26, "Network out of order" },
- { 0x27, "Transit delay range cannot be achieved" },
- { 0x28, "Throughput range cannot be achieved" },
- { 0x29, "Temporary failure" },
- { 0x2A, "Switching equipment congestion" },
- { 0x2B, "Access information discarded" },
- { 0x2C, "Requested circuit/channel not available" },
- { 0x2D, "Pre-empted" },
- { 0x2E, "Precedence call blocked" },
- { 0x2F, "Resources unavailable, unspecified" },
- { 0x31, "Quality of service unavailable" },
- { 0x32, "Requested facility not subscribed" },
- { 0x33, "Reverse charging not allowed" },
- { 0x34, "Outgoing calls barred" },
- { 0x35, "Outgoing calls barred within CUG" },
- { 0x36, "Incoming calls barred" },
- { 0x37, "Incoming calls barred within CUG" },
- { 0x38, "Call waiting not subscribed" },
- { 0x39, "Bearer capability not authorized" },
- { 0x3A, "Bearer capability not presently available" },
- { 0x3E, "Inconsistency in designated outgoing access information and subscriber class" },
- { 0x3F, "Service or option not available, unspecified" },
- { 0x41, "Bearer capability not implemented" },
- { 0x42, "Channel type not implemented" },
- { 0x43, "Transit network selection not implemented" },
- { 0x44, "Message not implemented" },
- { 0x45, "Requested facility not implemented" },
- { 0x46, "Only restricted digital information bearer capability is available" },
- { 0x4F, "Service or option not implemented, unspecified" },
- { 0x51, "Invalid call reference value" },
- { 0x52, "Identified channel does not exist" },
- { 0x53, "Call identity does not exist for suspended call" },
- { 0x54, "Call identity in use" },
- { 0x55, "No call suspended" },
- { 0x56, "Call having the requested call identity has been cleared" },
- { 0x57, "Called user not member of CUG" },
- { 0x58, "Incompatible destination" },
- { 0x59, "Non-existent abbreviated address entry" },
- { 0x5A, "Destination address missing, and direct call not subscribed" },
- { 0x5B, "Invalid transit network selection (national use)" },
- { 0x5C, "Invalid facility parameter" },
- { 0x5D, "Mandatory information element is missing" },
- { 0x5F, "Invalid message, unspecified" },
- { 0x60, "Mandatory information element is missing" },
- { 0x61, "Message type non-existent or not implemented" },
- { 0x62, "Message not compatible with call state or message type non-existent or not implemented" },
- { 0x63, "Information element nonexistant or not implemented" },
- { 0x64, "Invalid information element contents" },
- { 0x65, "Message not compatible with call state" },
- { 0x66, "Recovery on timer expiry" },
- { 0x67, "Parameter non-existent or not implemented - passed on" },
- { 0x6E, "Message with unrecognized parameter discarded" },
- { 0x6F, "Protocol error, unspecified" },
- { 0x7F, "Internetworking, unspecified" },
- { 0xFF, "Non-specific failure" },
- { 0, NULL }
-};
-
-static const value_string bap_call_status_opt_action_vals[] = {
- {0, "No retry" },
- {1, "Retry" },
- {0, NULL }
-};
-
-#define STAC_CM_NONE 0
-#define STAC_CM_LCB 1
-#define STAC_CM_CRC 2
-#define STAC_CM_SN 3
-#define STAC_CM_EXTMODE 4
-static const value_string stac_checkmode_vals[] = {
- {STAC_CM_NONE, "None" },
- {STAC_CM_LCB, "LCB" },
- {STAC_CM_CRC, "CRC" },
- {STAC_CM_SN, "Sequence Number" },
- {STAC_CM_EXTMODE, "Extended Mode" },
- {0, NULL }
-};
-
-#define LZSDCP_CM_NONE 0
-#define LZSDCP_CM_LCB 1
-#define LZSDCP_CM_SN 2
-#define LZSDCP_CM_SN_LCB 3
-static const value_string lzsdcp_checkmode_vals[] = {
- {LZSDCP_CM_NONE, "None" },
- {LZSDCP_CM_LCB, "LCB" },
- {LZSDCP_CM_SN, "Sequence Number" },
- {LZSDCP_CM_SN_LCB, "Sequence Number + LCB" },
- {0, NULL }
-};
-
-#define LZSDCP_PM_NONE 0
-#define LZSDCP_PM_PROC_UNCOMP 1
-static const value_string lzsdcp_processmode_vals[] = {
- {LZSDCP_PM_NONE, "None" },
- {LZSDCP_PM_PROC_UNCOMP, "Process-Uncompressed" },
- {0, NULL }
-};
-
-/*
- * Options. (LCP)
- */
-#define CI_MRU 1 /* Maximum Receive Unit */
-#define CI_ASYNCMAP 2 /* Async Control Character Map */
-#define CI_AUTHTYPE 3 /* Authentication Type */
-#define CI_QUALITY 4 /* Quality Protocol */
-#define CI_MAGICNUMBER 5 /* Magic Number */
-#define CI_PCOMPRESSION 7 /* Protocol Field Compression */
-#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
-#define CI_FCS_ALTERNATIVES 9 /* FCS Alternatives (RFC 1570) */
-#define CI_SELF_DESCRIBING_PAD 10 /* Self-Describing Pad (RFC 1570) */
-#define CI_NUMBERED_MODE 11 /* Numbered Mode (RFC 1663) */
-#define CI_CALLBACK 13 /* Callback (RFC 1570) */
-#define CI_COMPOUND_FRAMES 15 /* Compound frames (RFC 1570) */
-#define CI_MULTILINK_MRRU 17 /* Multilink MRRU (RFC 1717) */
-#define CI_MULTILINK_SSNH 18 /* Multilink Short Sequence Number
- Header (RFC 1717) */
-#define CI_MULTILINK_EP_DISC 19 /* Multilink Endpoint Discriminator
- (RFC 1717) */
-#define CI_DCE_IDENTIFIER 21 /* DCE Identifier */
-#define CI_MULTILINK_PLUS_PROC 22 /* Multilink Plus Procedure */
-#define CI_LINK_DISC_FOR_BACP 23 /* Link Discriminator for BACP
- (RFC 2125) */
-#define CI_LCP_AUTHENTICATION 24 /* LCP Authentication Option */
-#define CI_COBS 25 /* Consistent Overhead Byte
- Stuffing */
-#define CI_PREFIX_ELISION 26 /* Prefix elision */
-#define CI_MULTILINK_HDR_FMT 27 /* Multilink header format */
-#define CI_INTERNATIONALIZATION 28 /* Internationalization (RFC 2484) */
-#define CI_SDL_ON_SONET_SDH 29 /* Simple Data Link on SONET/SDH */
-
-static void dissect_lcp_mru_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_lcp_async_map_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_lcp_protocol_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_lcp_authprot_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_lcp_magicnumber_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_fcs_alternatives_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_numbered_mode_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_self_describing_pad_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_lcp_multilink_mrru_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_multilink_ep_disc_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_bap_link_discriminator_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_lcp_internationalization_opt(const ip_tcp_opt *optp,
- tvbuff_t *tvb, int offset, guint length,
- packet_info *pinfo, proto_tree *tree);
-static void dissect_mp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
-
-static const ip_tcp_opt lcp_opts[] = {
- {
- CI_MRU,
- "Maximum Receive Unit",
- NULL,
- FIXED_LENGTH,
- 4,
- dissect_lcp_mru_opt
- },
- {
- CI_ASYNCMAP,
- "Async Control Character Map",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_lcp_async_map_opt
- },
- {
- CI_AUTHTYPE,
- "Authentication protocol",
- &ett_lcp_authprot_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_lcp_authprot_opt
- },
- {
- CI_QUALITY,
- "Quality protocol",
- &ett_lcp_qualprot_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_lcp_protocol_opt
- },
- {
- CI_MAGICNUMBER,
- "Magic number",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_lcp_magicnumber_opt
- },
- {
- CI_PCOMPRESSION,
- "Protocol field compression",
- NULL,
- FIXED_LENGTH,
- 2,
- NULL
- },
- {
- CI_ACCOMPRESSION,
- "Address/control field compression",
- NULL,
- FIXED_LENGTH,
- 2,
- NULL
- },
- {
- CI_FCS_ALTERNATIVES,
- "FCS alternatives",
- &ett_lcp_fcs_alternatives_opt,
- FIXED_LENGTH,
- 3,
- dissect_lcp_fcs_alternatives_opt
- },
- {
- CI_SELF_DESCRIBING_PAD,
- "Maximum octets of self-describing padding",
- NULL,
- FIXED_LENGTH,
- 3,
- dissect_lcp_self_describing_pad_opt
- },
- {
- CI_NUMBERED_MODE,
- "Numbered mode",
- &ett_lcp_numbered_mode_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_lcp_numbered_mode_opt
- },
- {
- CI_CALLBACK,
- "Callback",
- &ett_lcp_callback_opt,
- VARIABLE_LENGTH,
- 3,
- dissect_lcp_callback_opt,
- },
- {
- CI_COMPOUND_FRAMES,
- "Compound frames",
- NULL,
- FIXED_LENGTH,
- 2,
- NULL
- },
- {
- CI_MULTILINK_MRRU,
- "Multilink MRRU",
- NULL,
- FIXED_LENGTH,
- 4,
- dissect_lcp_multilink_mrru_opt
- },
- {
- CI_MULTILINK_SSNH,
- "Use short sequence number headers",
- NULL,
- FIXED_LENGTH,
- 2,
- NULL
- },
- {
- CI_MULTILINK_EP_DISC,
- "Multilink endpoint discriminator",
- &ett_lcp_multilink_ep_disc_opt,
- VARIABLE_LENGTH,
- 3,
- dissect_lcp_multilink_ep_disc_opt,
- },
- {
- CI_DCE_IDENTIFIER,
- "DCE identifier",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_MULTILINK_PLUS_PROC,
- "Multilink Plus Procedure",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_LINK_DISC_FOR_BACP,
- "Link discriminator for BAP",
- NULL,
- FIXED_LENGTH,
- 4,
- dissect_lcp_bap_link_discriminator_opt
- },
- {
- CI_LCP_AUTHENTICATION,
- "LCP authentication",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_COBS,
- "Consistent Overhead Byte Stuffing",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_PREFIX_ELISION,
- "Prefix elision",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_MULTILINK_HDR_FMT,
- "Multilink header format",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- },
- {
- CI_INTERNATIONALIZATION,
- "Internationalization",
- &ett_lcp_internationalization_opt,
- VARIABLE_LENGTH,
- 7,
- dissect_lcp_internationalization_opt
- },
- {
- CI_SDL_ON_SONET_SDH,
- "Simple data link on SONET/SDH",
- NULL,
- VARIABLE_LENGTH,
- 2,
- NULL
- }
-};
-
-#define N_LCP_OPTS (sizeof lcp_opts / sizeof lcp_opts[0])
-
-/*
- * CHAP Algorithms
- */
-#define CHAP_ALG_MD5 0x05 /* CHAP with MD5 */
-#define CHAP_ALG_MSV1 0x80 /* MS-CHAPv1 */
-#define CHAP_ALG_MSV2 0x81 /* MS-CHAPv2 */
-
-static const value_string chap_alg_vals[] = {
- {CHAP_ALG_MD5, "CHAP with MD5" },
- {CHAP_ALG_MSV1, "MS-CHAP" },
- {CHAP_ALG_MSV2, "MS-CHAP-2" },
- {0, NULL }
-};
-
-
-/*
- * Options. (IPCP)
- */
-#define CI_ADDRS 1 /* IP Addresses (deprecated) (RFC 1172) */
-#define CI_COMPRESSTYPE 2 /* Compression Type (RFC 1332) */
-#define CI_ADDR 3 /* IP Address (RFC 1332) */
-#define CI_MOBILE_IPv4 4 /* Mobile IPv4 (RFC 2290) */
-#define CI_MS_DNS1 129 /* Primary DNS value (RFC 1877) */
-#define CI_MS_WINS1 130 /* Primary WINS value (RFC 1877) */
-#define CI_MS_DNS2 131 /* Secondary DNS value (RFC 1877) */
-#define CI_MS_WINS2 132 /* Secondary WINS value (RFC 1877) */
-
-static void dissect_ipcp_addrs_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-static void dissect_ipcp_addr_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt ipcp_opts[] = {
- {
- CI_ADDRS,
- "IP addresses (deprecated)",
- &ett_ipcp_ipaddrs_opt,
- FIXED_LENGTH,
- 10,
- dissect_ipcp_addrs_opt
- },
- {
- CI_COMPRESSTYPE,
- "IP compression protocol",
- &ett_ipcp_compressprot_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_lcp_protocol_opt
- },
- {
- CI_ADDR,
- "IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- },
- {
- CI_MOBILE_IPv4,
- "Mobile node's home IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- },
- {
- CI_MS_DNS1,
- "Primary DNS server IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- },
- {
- CI_MS_WINS1,
- "Primary WINS server IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- },
- {
- CI_MS_DNS2,
- "Secondary DNS server IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- },
- {
- CI_MS_WINS2,
- "Secondary WINS server IP address",
- NULL,
- FIXED_LENGTH,
- 6,
- dissect_ipcp_addr_opt
- }
-};
-
-#define N_IPCP_OPTS (sizeof ipcp_opts / sizeof ipcp_opts[0])
-
-/*
- * Options. (OSICP)
- */
-#define CI_OSICP_ALIGN_NPDU 1 /* Alignment of the OSI NPDU (RFC 1377) */
-
-static void dissect_osicp_align_npdu_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt osicp_opts[] = {
- {
- CI_OSICP_ALIGN_NPDU,
- "Align-NPDU",
- &ett_osicp_align_npdu_opt,
- FIXED_LENGTH,
- 3,
- dissect_osicp_align_npdu_opt
- }
-};
-
-#define N_OSICP_OPTS (sizeof osicp_opts / sizeof osicp_opts[0])
-
-/*
- * Options. (CCP)
- */
-#define CI_CCP_OUI 0 /* OUI (RFC1962) */
-#define CI_CCP_PREDICT1 1 /* Predictor type 1 (RFC1962) */
-#define CI_CCP_PREDICT2 2 /* Predictor type 2 (RFC1962) */
-#define CI_CCP_PUDDLE 3 /* Puddle Jumper (RFC1962) */
-#define CI_CCP_HPPPC 16 /* Hewlett-Packard PPC (RFC1962) */
-#define CI_CCP_STAC 17 /* stac Electronics LZS (RFC1974) */
-#define CI_CCP_MPPC 18 /* Microsoft PPC (RFC2218/3078) */
-#define CI_CCP_GFZA 19 /* Gandalf FZA (RFC1962) */
-#define CI_CCP_V42BIS 20 /* V.42bis compression */
-#define CI_CCP_BSDLZW 21 /* BSD LZW Compress (RFC1977) */
-#define CI_CCP_LZSDCP 23 /* LZS-DCP (RFC1967) */
-#define CI_CCP_MVRCA 24 /* MVRCA (Magnalink) (RFC1975) */
-#define CI_CCP_DEFLATE 26 /* Deflate (RFC1979) */
-#define CI_CCP_RESERVED 255 /* Reserved (RFC1962) */
-
-/*
- * Microsoft Point-To-Point Compression (MPPC) and Encryption (MPPE)
- * supported bits.
- */
-#define MPPC_SUPPORTED_BITS_C 0x00000001 /* MPPC negotiation */
-#define MPPE_SUPPORTED_BITS_D 0x00000010 /* Obsolete */
-#define MPPE_SUPPORTED_BITS_L 0x00000020 /* 40-bit encryption */
-#define MPPE_SUPPORTED_BITS_S 0x00000040 /* 128-bit encryption */
-#define MPPE_SUPPORTED_BITS_M 0x00000080 /* 56-bit encryption */
-#define MPPE_SUPPORTED_BITS_H 0x01000000 /* stateless mode */
-
-static void dissect_ccp_stac_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_ccp_mppc_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_ccp_bsdcomp_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_ccp_lzsdcp_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_ccp_mvrca_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_ccp_deflate_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt ccp_opts[] = {
- {
- CI_CCP_STAC,
- "Stac Electronics LZS",
- &ett_ccp_stac_opt,
- VARIABLE_LENGTH,
- 5,
- /* In RFC 1974, this is a fixed-length field of size 5,
- but in Ascend Proprietary STAC compression this field
- is 6 octets. Sigh... */
- dissect_ccp_stac_opt
- },
- {
- CI_CCP_MPPC,
- "Microsoft PPC",
- &ett_ccp_mppc_opt,
- FIXED_LENGTH,
- 6,
- dissect_ccp_mppc_opt
- },
- {
- CI_CCP_BSDLZW,
- "BSD Compress",
- &ett_ccp_bsdcomp_opt,
- FIXED_LENGTH,
- 3,
- dissect_ccp_bsdcomp_opt
- },
- {
- CI_CCP_LZSDCP,
- "LZS-DCP",
- &ett_ccp_lzsdcp_opt,
- FIXED_LENGTH,
- 6,
- dissect_ccp_lzsdcp_opt
- },
- {
- CI_CCP_MVRCA,
- "MVRCA (Magnalink)",
- &ett_ccp_mvrca_opt,
- FIXED_LENGTH,
- 4,
- dissect_ccp_mvrca_opt
- },
- {
- CI_CCP_DEFLATE,
- "Deflate",
- &ett_ccp_deflate_opt,
- FIXED_LENGTH,
- 4, /* RFC1979 says the length is 3 but it's actually 4. */
- dissect_ccp_deflate_opt
- },
-};
-
-#define N_CCP_OPTS (sizeof ccp_opts / sizeof ccp_opts[0])
-
-/*
- * Options. (CBCP)
- */
-#define CI_CBCP_NO_CALLBACK 1 /* No callback */
-#define CI_CBCP_CB_USER 2 /* Callback to a user-specified number */
-#define CI_CBCP_CB_PRE 3 /* Callback to a pre-specified or
- administrator specified number */
-#define CI_CBCP_CB_ANY 4 /* Callback to any of a list of numbers */
-
-static void dissect_cbcp_no_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_cbcp_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt cbcp_opts[] = {
- {
- CI_CBCP_NO_CALLBACK,
- "No callback",
- NULL,
- FIXED_LENGTH,
- 2,
- dissect_cbcp_no_callback_opt
- },
- {
- CI_CBCP_CB_USER,
- "Callback to a user-specified number",
- &ett_cbcp_callback_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_cbcp_callback_opt
- },
- {
- CI_CBCP_CB_PRE,
- "Callback to a pre-specified or admin-specified number",
- &ett_cbcp_callback_opt,
- FIXED_LENGTH,
- 3,
- dissect_cbcp_callback_opt
- },
- {
- CI_CBCP_CB_ANY,
- "Callback to any of a list of numbers",
- &ett_cbcp_callback_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_cbcp_callback_opt
- }
-
-};
-
-#define N_CBCP_OPTS (sizeof cbcp_opts / sizeof cbcp_opts[0])
-
-/*
- * Options. (BACP)
- */
-#define CI_BACP_FAVORED_PEER 1 /* Favored-Peer */
-
-static void dissect_bacp_favored_peer_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt bacp_opts[] = {
- {
- CI_BACP_FAVORED_PEER,
- "Favored-Peer",
- &ett_bacp_favored_peer_opt,
- FIXED_LENGTH,
- 6,
- dissect_bacp_favored_peer_opt
- }
-};
-
-#define N_BACP_OPTS (sizeof bacp_opts / sizeof bacp_opts[0])
-
-/*
- * Options. (BAP)
- */
-#define CI_BAP_LINK_TYPE 1 /* Link Type */
-#define CI_BAP_PHONE_DELTA 2 /* Phone-Delta */
-#define CI_BAP_NO_PHONE_NUM_NEEDED 3 /* No Phone Number Needed */
-#define CI_BAP_REASON 4 /* Reason */
-#define CI_BAP_LINK_DISC 5 /* Link Discriminator */
-#define CI_BAP_CALL_STATUS 6 /* Call Status */
-
-static void dissect_bap_link_type_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_bap_phone_delta_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_bap_link_disc_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_bap_reason_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static void dissect_bap_call_status_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt bap_opts[] = {
- {
- CI_BAP_LINK_TYPE,
- "Link Type",
- &ett_bap_link_type_opt,
- FIXED_LENGTH,
- 5,
- dissect_bap_link_type_opt
- },
- {
- CI_BAP_PHONE_DELTA,
- "Phone Delta",
- &ett_bap_phone_delta_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_bap_phone_delta_opt
- },
- {
- CI_BAP_NO_PHONE_NUM_NEEDED,
- "No Phone Number Needed",
- NULL,
- FIXED_LENGTH,
- 2,
- NULL
- },
- {
- CI_BAP_REASON,
- "Reason",
- NULL,
- VARIABLE_LENGTH,
- 2,
- dissect_bap_reason_opt
- },
- {
- CI_BAP_LINK_DISC,
- "Link Discriminator",
- NULL,
- FIXED_LENGTH,
- 4,
- dissect_bap_link_disc_opt
- },
- {
- CI_BAP_CALL_STATUS,
- "Call Status",
- &ett_bap_call_status_opt,
- FIXED_LENGTH,
- 4,
- dissect_bap_call_status_opt
- }
-};
-
-#define N_BAP_OPTS (sizeof bap_opts / sizeof bap_opts[0])
-
-static void dissect_ppp(tvbuff_t *tvb, packet_info *pinfo,
- proto_tree *tree);
-
-static const value_string pap_vals[] = {
- {CONFREQ, "Authenticate-Request" },
- {CONFACK, "Authenticate-Ack" },
- {CONFNAK, "Authenticate-Nak" },
- {0, NULL } };
-
-static void dissect_pap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
-
-#define CHAP_CHAL 1 /* CHAP Challenge */
-#define CHAP_RESP 2 /* CHAP Response */
-#define CHAP_SUCC 3 /* CHAP Success */
-#define CHAP_FAIL 4 /* CHAP Failure */
-
-static const value_string chap_vals[] = {
- {CHAP_CHAL, "Challenge" },
- {CHAP_RESP, "Response" },
- {CHAP_SUCC, "Success" },
- {CHAP_FAIL, "Failure" },
- {0, NULL } };
-
-static void dissect_chap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
-
-static const value_string pppmuxcp_vals[] = {
- {CONFREQ, "Configuration Request" },
- {CONFACK, "Configuration Ack" },
- {0, NULL}
-};
-
-/*
- * PPPMuxCP options
- */
-
-#define CI_DEFAULT_PID 1
-
-static void dissect_pppmuxcp_def_pid_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo, proto_tree *tree);
-
-
-static const ip_tcp_opt pppmuxcp_opts[] = {
- {
- CI_DEFAULT_PID,
- "Default Protocol ID",
- NULL,
- FIXED_LENGTH,
- 4,
- dissect_pppmuxcp_def_pid_opt
- }
-};
-
-#define N_PPPMUXCP_OPTS (sizeof pppmuxcp_opts / sizeof pppmuxcp_opts[0])
-
-/*
- * Options. (IPv6CP)
- */
-#define CI_IPV6CP_IF_ID 1 /* Interface Identifier (RFC 2472) */
-#define CI_IPV6CP_COMPRESSTYPE 2 /* Compression Type (RFC 2472) */
-
-static void dissect_ipv6cp_if_id_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo,
- proto_tree *tree);
-
-static const ip_tcp_opt ipv6cp_opts[] = {
- {
- CI_IPV6CP_IF_ID,
- "Interface Identifier",
- &ett_ipv6cp_if_id_opt,
- FIXED_LENGTH,
- 10,
- dissect_ipv6cp_if_id_opt
- },
- {
- CI_COMPRESSTYPE,
- "IPv6 compression protocol",
- &ett_ipcp_compressprot_opt,
- VARIABLE_LENGTH,
- 4,
- dissect_lcp_protocol_opt
- },
-};
-
-#define N_IPV6CP_OPTS (sizeof ipv6cp_opts / sizeof ipv6cp_opts[0])
-
-/*
-*******************************************************************************
-* DETAILS : Calculate a new FCS-16 given the current FCS-16 and the new data.
-*******************************************************************************
-*/
-static guint16
-fcs16(tvbuff_t * tvbuff)
-{
- guint len = tvb_length(tvbuff)-2;
-
- /* Check for Invalid Length */
- if (len == 0)
- return (0x0000);
- return crc16_ccitt_tvb(tvbuff, len);
-}
-
-/*
-*******************************************************************************
-* DETAILS : Calculate a new FCS-32 given the current FCS-32 and the new data.
-*******************************************************************************
-*/
-static guint32
-fcs32(tvbuff_t * tvbuff)
-{
- guint len = tvb_length(tvbuff)-4;
-
- /* Check for invalid Length */
- if (len == 0)
- return (0x00000000);
- return crc32_ccitt_tvb(tvbuff, len);
-}
-
-tvbuff_t *
-decode_fcs(tvbuff_t *tvb, proto_tree *fh_tree, int fcs_decode, int proto_offset)
-{
- tvbuff_t *next_tvb;
- gint len, reported_len;
- int rx_fcs_offset;
- guint32 rx_fcs_exp;
- guint32 rx_fcs_got;
-
- /*
- * Remove the FCS, if any, from the packet data.
- */
- switch (fcs_decode) {
-
- case NO_FCS:
- next_tvb = tvb_new_subset(tvb, proto_offset, -1, -1);
- break;
-
- case FCS_16:
- /*
- * Do we have the entire packet, and does it include a 2-byte FCS?
- */
- len = tvb_length_remaining(tvb, proto_offset);
- reported_len = tvb_reported_length_remaining(tvb, proto_offset);
- if (reported_len < 2 || len < 0) {
- /*
- * The packet is claimed not to even have enough data for a 2-byte FCS,
- * or we're already past the end of the captured data.
- * Don't slice anything off.
- */
- next_tvb = tvb_new_subset(tvb, proto_offset, -1, -1);
- } else if (len < reported_len) {
- /*
- * The packet is claimed to have enough data for a 2-byte FCS, but
- * we didn't capture all of the packet.
- * Slice off the 2-byte FCS from the reported length, and trim the
- * captured length so it's no more than the reported length; that
- * will slice off what of the FCS, if any, is in the captured
- * length.
- */
- reported_len -= 2;
- if (len > reported_len)
- len = reported_len;
- next_tvb = tvb_new_subset(tvb, proto_offset, len, reported_len);
- } else {
- /*
- * We have the entire packet, and it includes a 2-byte FCS.
- * Slice it off.
- */
- len -= 2;
- reported_len -= 2;
- next_tvb = tvb_new_subset(tvb, proto_offset, len, reported_len);
-
- /*
- * Compute the FCS and put it into the tree.
- */
- rx_fcs_offset = proto_offset + len;
- rx_fcs_exp = fcs16(tvb);
- rx_fcs_got = tvb_get_letohs(tvb, rx_fcs_offset);
- if (rx_fcs_got != rx_fcs_exp) {
- proto_tree_add_text(fh_tree, tvb, rx_fcs_offset, 2,
- "FCS 16: 0x%04x (incorrect, should be 0x%04x)",
- rx_fcs_got, rx_fcs_exp);
- } else {
- proto_tree_add_text(fh_tree, tvb, rx_fcs_offset, 2,
- "FCS 16: 0x%04x (correct)",
- rx_fcs_got);
- }
- }
- break;
-
- case FCS_32:
- /*
- * Do we have the entire packet, and does it include a 4-byte FCS?
- */
- len = tvb_length_remaining(tvb, proto_offset);
- reported_len = tvb_reported_length_remaining(tvb, proto_offset);
- if (reported_len < 4) {
- /*
- * The packet is claimed not to even have enough data for a 4-byte FCS.
- * Just pass on the tvbuff as is.
- */
- next_tvb = tvb_new_subset(tvb, proto_offset, -1, -1);
- } else if (len < reported_len) {
- /*
- * The packet is claimed to have enough data for a 4-byte FCS, but
- * we didn't capture all of the packet.
- * Slice off the 4-byte FCS from the reported length, and trim the
- * captured length so it's no more than the reported length; that
- * will slice off what of the FCS, if any, is in the captured
- * length.
- */
- reported_len -= 4;
- if (len > reported_len)
- len = reported_len;
- next_tvb = tvb_new_subset(tvb, proto_offset, len, reported_len);
- } else {
- /*
- * We have the entire packet, and it includes a 4-byte FCS.
- * Slice it off.
- */
- len -= 4;
- reported_len -= 4;
- next_tvb = tvb_new_subset(tvb, proto_offset, len, reported_len);
-
- /*
- * Compute the FCS and put it into the tree.
- */
- rx_fcs_offset = proto_offset + len;
- rx_fcs_exp = fcs32(tvb);
- rx_fcs_got = tvb_get_letohl(tvb, rx_fcs_offset);
- if (rx_fcs_got != rx_fcs_exp) {
- proto_tree_add_text(fh_tree, tvb, rx_fcs_offset, 4,
- "FCS 32: 0x%08x (incorrect, should be 0x%08x)",
- rx_fcs_got, rx_fcs_exp);
- } else {
- proto_tree_add_text(fh_tree, tvb, rx_fcs_offset, 4,
- "FCS 32: 0x%08x (correct)",
- rx_fcs_got);
- }
- }
- break;
-
- default:
- g_assert_not_reached();
- next_tvb = NULL;
- }
-
- return next_tvb;
-}
-
-void
-capture_ppp_hdlc( const guchar *pd, int offset, int len, packet_counts *ld ) {
- if (!BYTES_ARE_IN_FRAME(offset, len, 2)) {
- ld->other++;
- return;
- }
- if (pd[0] == CHDLC_ADDR_UNICAST || pd[0] == CHDLC_ADDR_MULTICAST) {
- capture_chdlc(pd, offset, len, ld);
- return;
- }
- if (!BYTES_ARE_IN_FRAME(offset, len, 4)) {
- ld->other++;
- return;
- }
- switch (pntohs(&pd[offset + 2])) {
- case PPP_IP:
- capture_ip(pd, offset + 4, len, ld);
- break;
- case PPP_IPX:
- capture_ipx(ld);
- break;
- case PPP_VINES:
- capture_vines(ld);
- break;
- default:
- ld->other++;
- break;
- }
-}
-
-static void
-dissect_lcp_mru_opt(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
- guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: %u", optp->name,
- tvb_get_ntohs(tvb, offset + 2));
-}
-
-static void
-dissect_lcp_async_map_opt(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
- guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- guint32 map;
- char *mapstr;
- static const char *ctrlchars[32] = {
- "NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
- "BS", "HT", "NL", "VT", "NP (FF)", "CR", "SO", "SI",
- "DLE", "DC1 (XON)", "DC2", "DC3 (XOFF)", "DC4", "NAK", "SYN", "ETB",
- "CAN", "EM", "SUB", "ESC", "FS", "GS", "RS", "US"
- };
- char mapbuf[32*(10+2)+1];
- char *mapp;
- int i;
-
- /*
- * XXX - walk through the map and show the characters to map?
- * Put them in a subtree of this item, and have the top-level item
- * either say "None", "All", or give a list of the characters?)
- */
- map = tvb_get_ntohl(tvb, offset + 2);
- if (map == 0x00000000)
- mapstr = "None"; /* don't map any control characters */
- else if (map == 0xffffffff)
- mapstr = "All"; /* map all control characters */
- else {
- /*
- * Show the names of the control characters being mapped.
- */
- mapp = &mapbuf[0];
- for (i = 0; i < 32; i++) {
- if (map & (1 << i)) {
- if (mapp != &mapbuf[0]) {
- strcpy(mapp, ", ");
- mapp += 2;
- }
- strcpy(mapp, ctrlchars[i]);
- mapp += strlen(ctrlchars[i]);
- }
- }
- mapstr = mapbuf;
- }
- proto_tree_add_text(tree, tvb, offset, length, "%s: 0x%08x (%s)", optp->name,
- map, mapstr);
-}
-
-static void
-dissect_lcp_protocol_opt(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
- guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- guint16 protocol;
- proto_item *tf;
- proto_tree *field_tree = NULL;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- protocol = tvb_get_ntohs(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, 2, "%s: %s (0x%02x)", optp->name,
- val_to_str(protocol, ppp_vals, "Unknown"), protocol);
- offset += 2;
- length -= 2;
- if (length > 0)
- proto_tree_add_text(field_tree, tvb, offset, length, "Data (%d byte%s)", length,
- plurality(length, "", "s"));
-}
-
-static void
-dissect_lcp_authprot_opt(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
- guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- guint16 protocol;
- guint8 algorithm;
- proto_item *tf;
- proto_tree *field_tree = NULL;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- protocol = tvb_get_ntohs(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, 2, "%s: %s (0x%02x)", optp->name,
- val_to_str(protocol, ppp_vals, "Unknown"), protocol);
- offset += 2;
- length -= 2;
- if (length > 0) {
- if (protocol == PPP_CHAP) {
- algorithm = tvb_get_guint8(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Algorithm: %s (0x%02x)",
- val_to_str(algorithm, chap_alg_vals, "Unknown"),
- algorithm);
- offset++;
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length, "Data (%d byte%s)", length,
- plurality(length, "", "s"));
- }
- }
-}
-
-static void
-dissect_lcp_magicnumber_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: 0x%08x", optp->name,
- tvb_get_ntohl(tvb, offset + 2));
-}
-
-static void
-dissect_lcp_fcs_alternatives_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
- guint8 alternatives;
-
- alternatives = tvb_get_guint8(tvb, offset + 2);
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: 0x%02x",
- optp->name, alternatives);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- if (alternatives & 0x1)
- proto_tree_add_text(field_tree, tvb, offset + 2, 1, "%s",
- decode_boolean_bitfield(alternatives, 0x1, 8, "Null FCS", NULL));
- if (alternatives & 0x2)
- proto_tree_add_text(field_tree, tvb, offset + 2, 1, "%s",
- decode_boolean_bitfield(alternatives, 0x2, 8, "CCITT 16-bit FCS", NULL));
- if (alternatives & 0x4)
- proto_tree_add_text(field_tree, tvb, offset + 2, 1, "%s",
- decode_boolean_bitfield(alternatives, 0x4, 8, "CCITT 32-bit FCS", NULL));
-}
-
-static void
-dissect_lcp_self_describing_pad_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: %u", optp->name,
- tvb_get_guint8(tvb, offset + 2));
-}
-
-static void
-dissect_lcp_numbered_mode_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- proto_tree_add_text(field_tree, tvb, offset, 1, "Window: %u",
- tvb_get_guint8(tvb, offset));
- offset += 1;
- length -= 1;
- if (length > 0)
- proto_tree_add_text(field_tree, tvb, offset, length, "Address (%d byte%s)",
- length, plurality(length, "", "s"));
-}
-
-static const value_string callback_op_vals[] = {
- {0, "Location is determined by user authentication" },
- {1, "Message is dialing string" },
- {2, "Message is location identifier" },
- {3, "Message is E.164" },
- {4, "Message is distinguished name" },
- {5, "unassigned"},
- {6, "Location is determined during CBCP negotiation" },
- {0, NULL }
-};
-
-static void
-dissect_lcp_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb, int offset,
- guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
- guint8 operation;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- operation = tvb_get_guint8(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, 1, "Operation: %s (0x%02x)",
- val_to_str(operation, callback_op_vals, "Unknown"),
- operation);
- offset += 1;
- length -= 1;
- if (length > 0)
- proto_tree_add_text(field_tree, tvb, offset, length, "Message (%d byte%s)",
- length, plurality(length, "", "s"));
-}
-
-static void
-dissect_lcp_multilink_mrru_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: %u", optp->name,
- tvb_get_ntohs(tvb, offset + 2));
-}
-
-#define CLASS_NULL 0
-#define CLASS_LOCAL 1
-#define CLASS_IP 2
-#define CLASS_IEEE_802_1 3
-#define CLASS_PPP_MAGIC_NUMBER 4
-#define CLASS_PSDN_DIRECTORY_NUMBER 5
-
-static const value_string multilink_ep_disc_class_vals[] = {
- {CLASS_NULL, "Null" },
- {CLASS_LOCAL, "Locally assigned address" },
- {CLASS_IP, "IP address" },
- {CLASS_IEEE_802_1, "IEEE 802.1 globally assigned MAC address" },
- {CLASS_PPP_MAGIC_NUMBER, "PPP magic-number block" },
- {CLASS_PSDN_DIRECTORY_NUMBER, "Public switched network directory number" },
- {0, NULL }
-};
-
-static void
-dissect_lcp_multilink_ep_disc_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
- guint8 ep_disc_class;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- ep_disc_class = tvb_get_guint8(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, 1, "Class: %s (%u)",
- val_to_str(ep_disc_class, multilink_ep_disc_class_vals, "Unknown"),
- ep_disc_class);
- offset += 1;
- length -= 1;
- if (length > 0) {
- switch (ep_disc_class) {
-
- case CLASS_NULL:
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been empty",
- length, plurality(length, "", "s"));
- break;
-
- case CLASS_LOCAL:
- if (length > 20) {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been <20",
- length, plurality(length, "", "s"));
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s)",
- length, plurality(length, "", "s"));
- }
- break;
-
- case CLASS_IP:
- if (length != 4) {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been 4",
- length, plurality(length, "", "s"));
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address: %s", ip_to_str(tvb_get_ptr(tvb, offset, 4)));
- }
- break;
-
- case CLASS_IEEE_802_1:
- if (length != 6) {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been 6",
- length, plurality(length, "", "s"));
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address: %s", ether_to_str(tvb_get_ptr(tvb, offset, 6)));
- }
- break;
-
- case CLASS_PPP_MAGIC_NUMBER:
- /* XXX - dissect as 32-bit magic numbers */
- if (length > 20) {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been <20",
- length, plurality(length, "", "s"));
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s)",
- length, plurality(length, "", "s"));
- }
- break;
-
- case CLASS_PSDN_DIRECTORY_NUMBER:
- if (length > 15) {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s), should have been <20",
- length, plurality(length, "", "s"));
- } else {
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s)",
- length, plurality(length, "", "s"));
- }
- break;
-
- default:
- proto_tree_add_text(field_tree, tvb, offset, length,
- "Address (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
- }
- }
-}
-
-static void
-dissect_lcp_bap_link_discriminator_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length,
- "%s: 0x%04x", optp->name,
- tvb_get_ntohs(tvb, offset + 2));
-}
-
-/* Character set numbers from the IANA charset registry. */
-static const value_string charset_num_vals[] = {
- {105, "UTF-8" },
- {0, NULL }
-};
-
-static void
-dissect_lcp_internationalization_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
- guint32 charset;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- charset = tvb_get_ntohl(tvb, offset);
- proto_tree_add_text(field_tree, tvb, offset, 4, "Character set: %s (0x%04x)",
- val_to_str(charset, charset_num_vals, "Unknown"),
- charset);
- offset += 4;
- length -= 4;
- if (length > 0) {
- /* XXX - should be displayed as an ASCII string */
- proto_tree_add_text(field_tree, tvb, offset, length, "Language tag (%d byte%s)",
- length, plurality(length, "", "s"));
- }
-}
-
-static void
-dissect_ipcp_addrs_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree = NULL;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s: %u byte%s",
- optp->name, length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- offset += 2;
- length -= 2;
- proto_tree_add_text(field_tree, tvb, offset, 4,
- "Source IP address: %s",
- ip_to_str(tvb_get_ptr(tvb, offset, 4)));
- offset += 4;
- length -= 4;
- proto_tree_add_text(field_tree, tvb, offset, 4,
- "Destination IP address: %s",
- ip_to_str(tvb_get_ptr(tvb, offset, 4)));
-}
-
-static void dissect_ipcp_addr_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: %s", optp->name,
- ip_to_str(tvb_get_ptr(tvb, offset + 2, 4)));
-}
-
-static void dissect_osicp_align_npdu_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 alignment;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- alignment = tvb_get_guint8(tvb, offset + 2);
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Alignment: %u", alignment);
-}
-
-static void dissect_pppmuxcp_def_pid_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- pppmux_def_prot_id = tvb_get_ntohs(tvb, offset + 2);
- proto_tree_add_text(tree, tvb, offset + 2, length - 2, "%s: %s (0x%02x)",optp->name,
- val_to_str(pppmux_def_prot_id, ppp_vals, "Unknown"), pppmux_def_prot_id);
-}
-
-
-static void
-dissect_ccp_stac_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 check_mode;
-
- if (length == 6) {
- proto_tree_add_text(tree, tvb, offset, length,
- "%s (Ascend Proprietary version)", optp->name);
- /* We don't know how to decode the following 4 octets, since
- there's no public document that describe their usage. */
- } else {
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 2,
- "History Count: %u", tvb_get_ntohs(tvb, offset + 2));
- check_mode = tvb_get_guint8(tvb, offset + 4);
- proto_tree_add_text(field_tree, tvb, offset + 4, 1,
- "Check Mode: %s (0x%02X)",
- val_to_str(check_mode, stac_checkmode_vals, "Unknown"),
- check_mode);
- }
-}
-
-static void
-dissect_ccp_mppc_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *flags_tree;
- guint32 supported_bits;
-
- supported_bits = tvb_get_ntohl(tvb, offset + 2);
- tf = proto_tree_add_text(tree, tvb, offset, length,
- "%s: Supported Bits: 0x%08X", optp->name, supported_bits);
- flags_tree = proto_item_add_subtree(tf, *optp->subtree_index);
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPC_SUPPORTED_BITS_C, 8*4,
- "Desire to negotiate MPPC", "NO Desire to negotiate MPPC"));
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPE_SUPPORTED_BITS_D, 8*4,
- "Obsolete (should NOT be 1)", "Obsolete (should ALWAYS be 0)"));
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPE_SUPPORTED_BITS_L, 8*4,
- "40-bit encryption ON", "40-bit encryption OFF"));
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPE_SUPPORTED_BITS_S, 8*4,
- "128-bit encryption ON", "128-bit encryption OFF"));
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPE_SUPPORTED_BITS_M, 8*4,
- "56-bit encryption ON", "56-bit encryption OFF"));
- proto_tree_add_text(flags_tree, tvb, offset + 2, 4, "%s",
- decode_boolean_bitfield(supported_bits, MPPE_SUPPORTED_BITS_H, 8*4,
- "Stateless mode ON", "Stateless mode OFF"));
-}
-
-static void
-dissect_ccp_bsdcomp_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Version: %u", tvb_get_guint8(tvb, offset + 2) >> 5);
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Dict: %u bits",
- tvb_get_guint8(tvb, offset + 2) & 0x1f);
-}
-
-static void
-dissect_ccp_lzsdcp_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 check_mode;
- guint8 process_mode;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 2,
- "History Count: %u", tvb_get_ntohs(tvb, offset + 2));
- check_mode = tvb_get_guint8(tvb, offset + 4);
- proto_tree_add_text(field_tree, tvb, offset + 4, 1,
- "Check Mode: %s (0x%02X)",
- val_to_str(check_mode, lzsdcp_checkmode_vals, "Unknown"),
- check_mode);
- process_mode = tvb_get_guint8(tvb, offset + 5);
- proto_tree_add_text(field_tree, tvb, offset + 5, 1,
- "Process Mode: %s (0x%02X)",
- val_to_str(process_mode, lzsdcp_processmode_vals, "Unkown"),
- process_mode);
-}
-
-static void
-dissect_ccp_mvrca_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Features: %u", tvb_get_guint8(tvb, offset + 2) >> 5);
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Packet by Packet flag: %s",
- tvb_get_guint8(tvb, offset + 2) & 0x20 ? "true" : "false");
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "History: %u", tvb_get_guint8(tvb, offset + 2) & 0x20);
- proto_tree_add_text(field_tree, tvb, offset + 3, 1,
- "Number of contexts: %u", tvb_get_guint8(tvb, offset + 3));
-}
-
-static void
-dissect_ccp_deflate_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 method;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Window: %u", hi_nibble(tvb_get_guint8(tvb, offset + 2)));
- method = lo_nibble(tvb_get_guint8(tvb, offset + 2));
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Method: %s (0x%02x)",
- method == 0x08 ? "zlib compression" : "other", method);
- proto_tree_add_text(field_tree, tvb, offset + 3, 1,
- "Sequence number check method: %u",
- tvb_get_guint8(tvb, offset + 2) & 0x03);
-}
-
-static void
-dissect_cbcp_no_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
-}
-
-static void
-dissect_cbcp_callback_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- proto_item *ta;
- proto_tree *addr_tree;
- guint8 addr_type;
- guint addr_len;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Callback delay: %u", tvb_get_guint8(tvb, offset + 2));
- offset += 3;
- length -= 3;
-
- while (length > 0) {
- ta = proto_tree_add_text(field_tree, tvb, offset, length,
- "Callback Address");
- addr_type = tvb_get_guint8(tvb, offset);
- addr_tree = proto_item_add_subtree(tf, ett_cbcp_callback_opt_addr);
- proto_tree_add_text(addr_tree, tvb, offset, 1,
- "Address Type: %s (%u)",
- ((addr_type == 1) ? "PSTN/ISDN" : "Other"), addr_type);
- offset++;
- length--;
- addr_len = tvb_strsize(tvb, offset);
- proto_tree_add_text(addr_tree, tvb, offset, addr_len,
- "Address: %s",
- tvb_format_text(tvb, offset, addr_len - 1));
- offset += (addr_len + 1);
- length -= (addr_len + 1);
- }
-}
-
-static void
-dissect_bacp_favored_peer_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 4,
- "Magic number: 0x%08x", tvb_get_ntohl(tvb, offset + 2));
-}
-
-static void
-dissect_bap_link_type_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 link_type;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- proto_tree_add_text(field_tree, tvb, offset + 2, 2,
- "Link Speed: %u kbps", tvb_get_ntohs(tvb, offset + 2));
- link_type = tvb_get_guint8(tvb, offset + 4);
- proto_tree_add_text(field_tree, tvb, offset + 4, 1,
- "Link Type: %s (%u)", val_to_str(link_type, bap_link_type_vals,
- "Unknown"), link_type);
-}
-
-static void
-dissect_bap_phone_delta_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- proto_item *ti;
- proto_tree *suboption_tree;
- guint8 subopt_type;
- guint8 subopt_len;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- offset += 2;
- length -= 2;
-
- while (length > 0) {
- subopt_type = tvb_get_guint8(tvb, offset);
- subopt_len = tvb_get_guint8(tvb, offset + 1);
- ti = proto_tree_add_text(field_tree, tvb, offset, subopt_len,
- "Sub-Option (%d byte%s)",
- subopt_len, plurality(subopt_len, "", "s"));
- suboption_tree = proto_item_add_subtree(ti, ett_bap_phone_delta_subopt);
-
- proto_tree_add_text(suboption_tree, tvb, offset, 1,
- "Sub-Option Type: %s (%u)",
- val_to_str(subopt_type, bap_phone_delta_subopt_vals, "Unknown"),
- subopt_type);
-
- proto_tree_add_text(suboption_tree, tvb, offset + 1, 1,
- "Sub-Option Length: %u", subopt_len);
-
- switch (subopt_type) {
- case BAP_PHONE_DELTA_SUBOPT_UNIQ_DIGIT:
- proto_tree_add_text(suboption_tree, tvb, offset + 2, 1, "Uniq Digit: %u",
- tvb_get_guint8(tvb, offset + 2));
- break;
- case BAP_PHONE_DELTA_SUBOPT_SUBSC_NUM:
- if (subopt_len > 2) {
- proto_tree_add_text(suboption_tree, tvb, offset + 2, subopt_len - 2,
- "Subscriber Number: %s",
- tvb_format_text(tvb, offset + 2, subopt_len - 2));
- } else {
- proto_tree_add_text(suboption_tree, tvb, offset + 1, 1,
- "Invalid suboption length: %u", subopt_len);
- }
- break;
- case BAP_PHONE_DELTA_SUBOPT_PHONENUM_SUBADDR:
- if (subopt_len > 2) {
- proto_tree_add_text(suboption_tree, tvb, offset + 2, subopt_len - 2,
- "Phone Number Sub Address: %s",
- tvb_format_text(tvb, offset + 2, subopt_len - 2));
- }
- break;
- default:
- proto_tree_add_text(suboption_tree, tvb, offset + 2, subopt_len - 2,
- "Unknown");
- break;
- }
- offset += subopt_len;
- length -= subopt_len;
- }
-}
-
-static void
-dissect_bap_reason_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- if (length > 2) {
- proto_tree_add_text(tree, tvb, offset, length, "%s: %s",
- optp->name,
- tvb_format_text(tvb, offset + 2, length - 2));
- }
-}
-
-static void
-dissect_bap_link_disc_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: 0x%04x",
- optp->name, tvb_get_ntohs(tvb, offset + 2));
-}
-
-static void
-dissect_bap_call_status_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_item *tf;
- proto_tree *field_tree;
- guint8 status, action;
-
- tf = proto_tree_add_text(tree, tvb, offset, length, "%s", optp->name);
- field_tree = proto_item_add_subtree(tf, *optp->subtree_index);
-
- status = tvb_get_guint8(tvb, offset + 2);
- proto_tree_add_text(field_tree, tvb, offset + 2, 1,
- "Status: %s (0x%02x)",
- val_to_str(status, q931_cause_code_vals, "Unknown"), status);
-
- action = tvb_get_guint8(tvb, offset + 3);
- proto_tree_add_text(field_tree, tvb, offset + 3, 1,
- "Action: %s (0x%02x)",
- val_to_str(action, bap_call_status_opt_action_vals, "Unknown"), action);
-}
-
-static void
-dissect_cp( tvbuff_t *tvb, int proto_id, int proto_subtree_index,
- const value_string *proto_vals, int options_subtree_index,
- const ip_tcp_opt *opts, int nopts, packet_info *pinfo,
- proto_tree *tree )
-{
- proto_item *ti;
- proto_tree *fh_tree = NULL;
- proto_item *tf;
- proto_tree *field_tree;
-
- guint8 code;
- guint8 id;
- int length, offset;
- guint16 protocol;
-
- code = tvb_get_guint8(tvb, 0);
- id = tvb_get_guint8(tvb, 1);
- length = tvb_get_ntohs(tvb, 2);
-
- if(check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL,
- proto_get_protocol_short_name(find_protocol_by_id(proto_id)));
-
- if(check_col(pinfo->cinfo, COL_INFO))
- col_add_str(pinfo->cinfo, COL_INFO,
- val_to_str(code, proto_vals, "Unknown"));
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_id, tvb, 0, length, FALSE);
- fh_tree = proto_item_add_subtree(ti, proto_subtree_index);
- proto_tree_add_text(fh_tree, tvb, 0, 1, "Code: %s (0x%02x)",
- val_to_str(code, proto_vals, "Unknown"), code);
- proto_tree_add_text(fh_tree, tvb, 1, 1, "Identifier: 0x%02x",
- id);
- proto_tree_add_text(fh_tree, tvb, 2, 2, "Length: %u",
- length);
- }
- offset = 4;
- length -= 4;
-
- switch (code) {
- case CONFREQ:
- case CONFACK:
- case CONFNAK:
- case CONFREJ:
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Options: (%d byte%s)", length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, options_subtree_index);
- dissect_ip_tcp_options(tvb, offset, length, opts, nopts, -1,
- pinfo, field_tree);
- }
- }
- break;
-
- case ECHOREQ:
- case ECHOREP:
- case DISCREQ:
- case IDENT:
- if(tree) {
- proto_tree_add_text(fh_tree, tvb, offset, 4, "Magic number: 0x%08x",
- tvb_get_ntohl(tvb, offset));
- offset += 4;
- length -= 4;
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Message (%d byte%s)",
- length, plurality(length, "", "s"));
- }
- break;
-
- case TIMEREMAIN:
- if(tree) {
- proto_tree_add_text(fh_tree, tvb, offset, 4, "Magic number: 0x%08x",
- tvb_get_ntohl(tvb, offset));
- offset += 4;
- length -= 4;
- proto_tree_add_text(fh_tree, tvb, offset, 4, "Seconds remaining: %u",
- tvb_get_ntohl(tvb, offset));
- offset += 4;
- length -= 4;
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Message (%d byte%s)",
- length, plurality(length, "", "s"));
- }
- break;
-
- case PROTREJ:
- if(tree) {
- gboolean save_in_error_pkt;
- tvbuff_t *next_tvb;
-
- protocol = tvb_get_ntohs(tvb, offset);
- proto_tree_add_text(fh_tree, tvb, offset, 2,
- "Rejected protocol: %s (0x%04x)",
- val_to_str(protocol, ppp_vals, "Unknown"),
- protocol);
- offset += 2;
- length -= 2;
- if (length > 0) {
- proto_tree_add_text(fh_tree, tvb, offset, length,
- "Rejected packet (%d byte%s)",
- length, plurality(length, "", "s"));
-
- /* Save the current value of the "we're inside an error packet"
- flag, and set that flag; subdissectors may treat packets
- that are the payload of error packets differently from
- "real" packets. */
- save_in_error_pkt = pinfo->in_error_pkt;
- pinfo->in_error_pkt = TRUE;
-
- /* Decode the rejected packet. */
- next_tvb = tvb_new_subset(tvb, offset, length, length);
- if (!dissector_try_port(ppp_subdissector_table, protocol,
- next_tvb, pinfo, fh_tree)) {
- call_dissector(data_handle, next_tvb, pinfo, fh_tree);
- }
-
- /* Restore the "we're inside an error packet" flag. */
- pinfo->in_error_pkt = save_in_error_pkt;
- }
- }
- break;
-
- case CODEREJ:
- /* decode the rejected LCP packet here. */
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Rejected packet (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
-
- case TERMREQ:
- case TERMACK:
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Data (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
-
- default:
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Stuff (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
- }
-}
-
-/* Protocol field compression */
-#define PFC_BIT 0x01
-
-static void
-dissect_ppp_common( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
- proto_tree *fh_tree, proto_item *ti )
-{
- guint16 ppp_prot;
- int proto_len;
- tvbuff_t *next_tvb;
-
- ppp_prot = tvb_get_guint8(tvb, 0);
- if (ppp_prot & PFC_BIT) {
- /* Compressed protocol field - just the byte we fetched. */
- proto_len = 1;
- } else {
- /* Uncompressed protocol field - fetch all of it. */
- ppp_prot = tvb_get_ntohs(tvb, 0);
- proto_len = 2;
- }
-
- /* If "ti" is not null, it refers to the top-level "proto_ppp" item
- for PPP, and was given a length equal to the length of any
- stuff in the header preceding the protocol type, e.g. an HDLC
- header; add the length of the protocol type field to it. */
- if (ti != NULL)
- proto_item_set_len(ti, proto_item_get_len(ti) + proto_len);
-
- if (tree)
- proto_tree_add_uint(fh_tree, hf_ppp_protocol, tvb, 0, proto_len, ppp_prot);
-
- next_tvb = tvb_new_subset(tvb, proto_len, -1, -1);
-
- /* do lookup with the subdissector table */
- if (!dissector_try_port(ppp_subdissector_table, ppp_prot, next_tvb, pinfo, tree)) {
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_add_fstr(pinfo->cinfo, COL_PROTOCOL, "0x%04x", ppp_prot);
- if (check_col(pinfo->cinfo, COL_INFO))
- col_add_fstr(pinfo->cinfo, COL_INFO, "PPP %s (0x%04x)",
- val_to_str(ppp_prot, ppp_vals, "Unknown"), ppp_prot);
- call_dissector(data_handle,next_tvb, pinfo, tree);
- }
-}
-
-static void
-dissect_lcp_options(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_ip_tcp_options(tvb, 0, tvb_reported_length(tvb), lcp_opts, N_LCP_OPTS,
- -1, pinfo, tree);
-}
-
-/*
- * RFC 1661.
- */
-static void
-dissect_lcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_lcp, ett_lcp, lcp_vals, ett_lcp_options,
- lcp_opts, N_LCP_OPTS, pinfo, tree);
-}
-
-/*
- * RFC 1332.
- */
-static void
-dissect_ipcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_ipcp, ett_ipcp, cp_vals, ett_ipcp_options,
- ipcp_opts, N_IPCP_OPTS, pinfo, tree);
-}
-
-/*
- * RFC 1377.
- */
-static void
-dissect_osicp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_osicp, ett_osicp, cp_vals, ett_osicp_options,
- osicp_opts, N_OSICP_OPTS, pinfo, tree);
-}
-
-/*
- * RFC 1962.
- */
-static void
-dissect_ccp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_ccp, ett_ccp, ccp_vals, ett_ccp_options,
- ccp_opts, N_CCP_OPTS, pinfo, tree);
-}
-
-/*
- * Callback Control Protocol - see
- *
- * http://www.linet.gr.jp/~manabe/PPxP/doc/Standards/draft-gidwani-ppp-callback-cp-00.txt
- */
-static void
-dissect_cbcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_cbcp, ett_cbcp, cbcp_vals, ett_cbcp_options,
- cbcp_opts, N_CBCP_OPTS, pinfo, tree);
-}
-
-/*
- * RFC 2125 (BACP and BAP).
- */
-static void
-dissect_bacp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_bacp, ett_bacp, cp_vals, ett_bacp_options,
- bacp_opts, N_BACP_OPTS, pinfo, tree);
-}
-
-static void
-dissect_bap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- proto_item *ti;
- proto_tree *fh_tree = NULL;
- proto_item *tf;
- proto_tree *field_tree;
-
- guint8 type;
- guint8 id;
- int length, offset;
- guint8 resp_code;
-
- type = tvb_get_guint8(tvb, 0);
- id = tvb_get_guint8(tvb, 1);
- length = tvb_get_ntohs(tvb, 2);
-
- if(check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP BAP");
-
- if(check_col(pinfo->cinfo, COL_INFO))
- col_add_str(pinfo->cinfo, COL_INFO,
- val_to_str(type, bap_vals, "Unknown"));
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_bap, tvb, 0, length, FALSE);
- fh_tree = proto_item_add_subtree(ti, ett_bap_options);
- proto_tree_add_text(fh_tree, tvb, 0, 1, "Type: %s (0x%02x)",
- val_to_str(type, bap_vals, "Unknown"), type);
- proto_tree_add_text(fh_tree, tvb, 1, 1, "Identifier: 0x%02x",
- id);
- proto_tree_add_text(fh_tree, tvb, 2, 2, "Length: %u",
- length);
- }
- offset = 4;
- length -= 4;
-
- if (type == BAP_CRES || type == BAP_CBRES ||
- type == BAP_LDQRES || type == BAP_CSRES) {
- resp_code = tvb_get_guint8(tvb, offset);
- proto_tree_add_text(fh_tree, tvb, offset, 1, "Response Code: %s (0x%02x)",
- val_to_str(resp_code, bap_resp_code_vals, "Unknown"), resp_code);
- offset++;
- length--;
- }
-
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Data (%d byte%s)", length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, ett_bap_options);
- dissect_ip_tcp_options(tvb, offset, length, bap_opts, N_BAP_OPTS, -1,
- pinfo, field_tree);
- }
- }
-}
-
-static void
-dissect_comp_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- proto_item *ti;
- proto_tree *comp_data_tree;
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP Comp");
-
- if(check_col(pinfo->cinfo, COL_INFO))
- col_set_str(pinfo->cinfo, COL_INFO, "Compressed data");
-
- if (tree) {
- ti = proto_tree_add_item(tree, proto_comp_data, tvb, 0, -1, FALSE);
- comp_data_tree = proto_item_add_subtree(ti, ett_comp_data);
- }
-}
-
-/*
- * RFC 3153 (both PPPMuxCP and PPPMux).
- */
-static void
-dissect_pppmuxcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb,proto_pppmuxcp,ett_pppmuxcp,pppmuxcp_vals,
- ett_pppmuxcp_options,pppmuxcp_opts,N_PPPMUXCP_OPTS,pinfo,tree);
-}
-
-#define PPPMUX_FLAGS_MASK 0xc0
-#define PPPMUX_PFF_BIT_SET 0x80
-#define PPPMUX_LXT_BIT_SET 0x40
-
-static void
-dissect_pppmux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- proto_tree *mux_tree, *hdr_tree, *sub_tree, *flag_tree;
- proto_tree *info_tree;
- proto_item *ti = NULL,*sub_ti = NULL;
- guint8 flags, byte;
- guint16 length;
- static guint16 pid;
- tvbuff_t *next_tvb;
- int offset = 0, length_remaining;
- int length_field = 0, pid_field = 0,hdr_length = 0;
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo,COL_PROTOCOL, "PPP PPPMux");
-
- if (check_col(pinfo->cinfo, COL_INFO))
- col_set_str(pinfo->cinfo, COL_INFO, "PPP Multiplexing");
-
- length_remaining = tvb_reported_length(tvb);
-
- if (tree) {
- ti = proto_tree_add_item(tree, proto_pppmux, tvb, 0, -1, FALSE);
- mux_tree = proto_item_add_subtree(ti,ett_pppmux);
-
- while (length_remaining > 0) {
-
- flags = tvb_get_guint8(tvb,offset) & PPPMUX_FLAGS_MASK;
-
- if (flags && PPPMUX_LXT_BIT_SET ) {
- length = tvb_get_ntohs(tvb,offset) & 0x3fff;
- length_field = 2;
- } else {
- length = tvb_get_guint8(tvb,offset) & 0x3f;
- length_field = 1;
- }
-
- if (flags && PPPMUX_PFF_BIT_SET) {
- byte = tvb_get_guint8(tvb,offset + length_field);
- if (byte && PFC_BIT) { /* Compressed PID field*/
- pid = byte;
- pid_field = 1;
- } else { /*PID field is 2 bytes*/
- pid = tvb_get_ntohs(tvb,offset + length_field);
- pid_field = 2;
- }
- } else {
- if (!pid){ /*No Last PID, hence use the default */
- if (pppmux_def_prot_id)
- pid = pppmux_def_prot_id;
- }
- }
-
- hdr_length = length_field + pid_field;
-
- ti = proto_tree_add_text(mux_tree, tvb, offset, length + length_field,
- "PPPMux Sub-frame");
- sub_tree = proto_item_add_subtree(ti,ett_pppmux_subframe);
- sub_ti = proto_tree_add_text(sub_tree, tvb, offset,
- hdr_length,"Header field");
-
- hdr_tree = proto_item_add_subtree(sub_ti,ett_pppmux_subframe_hdr);
- ti = proto_tree_add_text(hdr_tree, tvb, offset, length_field, "PFF/LXT: 0x%02X",
- flags);
-
- flag_tree = proto_item_add_subtree(ti,ett_pppmux_subframe_flags);
- proto_tree_add_text(flag_tree,tvb,offset,length_field,"%s",
- decode_boolean_bitfield(flags,0x80,8,"PID Present","PID not present"));
- proto_tree_add_text(flag_tree,tvb,offset,length_field,"%s",
- decode_boolean_bitfield(flags,0x40,8,"2 bytes ength field ","1 byte length field"));
-
- ti = proto_tree_add_text(hdr_tree,tvb,offset,length_field,"Sub-frame Length = %u",length);
-
- if (flags && PPPMUX_PFF_BIT_SET)
- proto_tree_add_text(hdr_tree,tvb,offset + length_field,pid_field,"%s: %s(0x%02x)",
- "Protocol ID",val_to_str(pid,ppp_vals,"Unknown"), pid);
-
- offset += hdr_length;
- length_remaining -= hdr_length;
- length -= pid_field;
-
- sub_ti = proto_tree_add_text(sub_tree,tvb,offset,length,"Information Field");
- info_tree = proto_item_add_subtree(sub_ti,ett_pppmux_subframe_info);
-
- next_tvb = tvb_new_subset(tvb,offset,length,-1);
-
- if (!dissector_try_port(ppp_subdissector_table, pid, next_tvb, pinfo, info_tree)) {
- call_dissector(data_handle, next_tvb, pinfo, info_tree);
- }
- offset += length;
- length_remaining -= length;
- } /* While length_remaining */
- pid = 0;
- } /* if tree */
-}
-
-/*
- * RFC 3032.
- */
-static void
-dissect_mplscp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_mplscp, ett_mplscp, cp_vals, ett_mplscp_options,
- NULL, 0, pinfo, tree);
-}
-
-/*
- * Cisco Discovery Protocol Control Protocol.
- * XXX - where is this documented?
- */
-static void
-dissect_cdpcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_cdpcp, ett_cdpcp, cp_vals, ett_cdpcp_options,
- NULL, 0, pinfo, tree);
-}
-
-#define MP_FRAG_MASK 0xC0
-#define MP_FRAG(bits) ((bits) & MP_FRAG_MASK)
-#define MP_FRAG_FIRST 0x80
-#define MP_FRAG_LAST 0x40
-#define MP_FRAG_RESERVED 0x3f
-
-static const true_false_string frag_truth = {
- "Yes",
- "No"
-};
-
-/* According to RFC 1717, the length the MP header isn't indicated anywhere
- in the header itself. It starts out at four bytes and can be
- negotiated down to two using LCP. We currently assume that all
- headers are four bytes. - gcc
- */
-static void
-dissect_mp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- proto_tree *mp_tree, *hdr_tree;
- proto_item *ti = NULL;
- guint8 flags;
- gchar *flag_str;
- tvbuff_t *next_tvb;
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP MP");
-
- if (check_col(pinfo->cinfo, COL_INFO))
- col_set_str(pinfo->cinfo, COL_INFO, "PPP Multilink");
-
- flags = tvb_get_guint8(tvb, 0);
-
- if (tree) {
- switch (flags) {
- case MP_FRAG_FIRST:
- flag_str = "First";
- break;
- case MP_FRAG_LAST:
- flag_str = "Last";
- break;
- case MP_FRAG_FIRST|MP_FRAG_LAST:
- flag_str = "First, Last";
- break;
- default:
- flag_str = "Unknown";
- break;
- }
- ti = proto_tree_add_item(tree, proto_mp, tvb, 0, 4, FALSE);
- mp_tree = proto_item_add_subtree(ti, ett_mp);
- ti = proto_tree_add_text(mp_tree, tvb, 0, 1, "Fragment: 0x%2X (%s)",
- flags, flag_str);
- hdr_tree = proto_item_add_subtree(ti, ett_mp_flags);
- proto_tree_add_boolean(hdr_tree, hf_mp_frag_first, tvb, 0, 1, flags);
- proto_tree_add_boolean(hdr_tree, hf_mp_frag_last, tvb, 0, 1, flags),
- proto_tree_add_text(hdr_tree, tvb, 0, 1, "%s",
- decode_boolean_bitfield(flags, MP_FRAG_RESERVED, sizeof(flags) * 8,
- "reserved", "reserved"));
- proto_tree_add_item(mp_tree, hf_mp_sequence_num, tvb, 1, 3, FALSE);
- }
-
- if (tvb_reported_length_remaining(tvb, 4) > 0) {
- next_tvb = tvb_new_subset(tvb, 4, -1, -1);
- dissect_ppp(next_tvb, pinfo, tree);
- }
-}
-
-/*
- * Handles PPP without HDLC framing, just a protocol field (RFC 1661).
- */
-static void
-dissect_ppp( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree ) {
- proto_item *ti = NULL;
- proto_tree *fh_tree = NULL;
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_ppp, tvb, 0, -1, FALSE);
- fh_tree = proto_item_add_subtree(ti, ett_ppp);
- }
-
- dissect_ppp_common(tvb, pinfo, tree, fh_tree, ti);
-}
-
-/*
- * Handles link-layer encapsulations where the frame might be
- * a PPP in HDLC-like Framing frame (RFC 1662) or a Cisco HDLC frame.
- */
-static void
-dissect_ppp_hdlc( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree )
-{
- proto_item *ti = NULL;
- proto_tree *fh_tree = NULL;
- guint8 byte0;
- int proto_offset;
- tvbuff_t *next_tvb;
-
- byte0 = tvb_get_guint8(tvb, 0);
- if (byte0 == CHDLC_ADDR_UNICAST || byte0 == CHDLC_ADDR_MULTICAST) {
- /* Cisco HDLC encapsulation */
- call_dissector(chdlc_handle, tvb, pinfo, tree);
- return;
- }
-
- /*
- * XXX - should we have a routine that always dissects PPP, for use
- * when we know the packets are PPP, not CHDLC?
- */
-
- /* PPP HDLC encapsulation */
- if (byte0 == 0xff)
- proto_offset = 2;
- else {
- /* address and control are compressed (NULL) */
- proto_offset = 0;
- }
-
- /* load the top pane info. This should be overwritten by
- the next protocol in the stack */
-
- if(check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP" );
-
- switch (pinfo->p2p_dir) {
-
- case P2P_DIR_SENT:
- if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
- col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "DTE");
- if(check_col(pinfo->cinfo, COL_RES_DL_DST))
- col_set_str(pinfo->cinfo, COL_RES_DL_DST, "DCE");
- break;
-
- case P2P_DIR_RECV:
- if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
- col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "DCE");
- if(check_col(pinfo->cinfo, COL_RES_DL_DST))
- col_set_str(pinfo->cinfo, COL_RES_DL_DST, "DTE");
- break;
-
- default:
- if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
- col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "N/A");
- if(check_col(pinfo->cinfo, COL_RES_DL_DST))
- col_set_str(pinfo->cinfo, COL_RES_DL_DST, "N/A");
- break;
- }
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_ppp, tvb, 0, proto_offset, FALSE);
- fh_tree = proto_item_add_subtree(ti, ett_ppp);
- if (byte0 == 0xff) {
- proto_tree_add_item(fh_tree, hf_ppp_address, tvb, 0, 1, FALSE);
- proto_tree_add_item(fh_tree, hf_ppp_control, tvb, 1, 1, FALSE);
- }
- }
-
- next_tvb = decode_fcs(tvb, fh_tree, ppp_fcs_decode, proto_offset);
-
- dissect_ppp_common(next_tvb, pinfo, tree, fh_tree, ti);
-}
-
-/*
- * Handles PAP just as a protocol field
- */
-static void
-dissect_pap( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree ) {
- proto_item *ti;
- proto_tree *fh_tree = NULL;
- proto_item *tf;
- proto_tree *field_tree;
- proto_item *tm;
- proto_tree *message_tree;
- proto_item *tp;
- proto_tree *peer_id_tree;
- proto_item *tpw;
- proto_tree *passwd_tree;
-
- guint8 code;
- guint8 id, peer_id_length, password_length, msg_length;
- int length, offset;
-
- code = tvb_get_guint8(tvb, 0);
- id = tvb_get_guint8(tvb, 1);
- length = tvb_get_ntohs(tvb, 2);
-
- if(check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP PAP");
-
- if(check_col(pinfo->cinfo, COL_INFO))
- col_add_str(pinfo->cinfo, COL_INFO,
- val_to_str(code, pap_vals, "Unknown"));
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_pap, tvb, 0, length, FALSE);
- fh_tree = proto_item_add_subtree(ti, ett_pap);
- proto_tree_add_text(fh_tree, tvb, 0, 1, "Code: %s (0x%02x)",
- val_to_str(code, pap_vals, "Unknown"), code);
- proto_tree_add_text(fh_tree, tvb, 1, 1, "Identifier: 0x%02x",
- id);
- proto_tree_add_text(fh_tree, tvb, 2, 2, "Length: %u",
- length);
- }
- offset = 4;
- length -= 4;
-
- switch (code) {
- case CONFREQ:
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Data (%d byte%s)", length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, ett_pap_data);
- peer_id_length = tvb_get_guint8(tvb, offset);
- tp = proto_tree_add_text(field_tree, tvb, offset, 1,
- "Peer ID length: %d byte%s", peer_id_length, plurality(peer_id_length, "", "s"));
- if (--length > 0) {
- peer_id_tree = proto_item_add_subtree(tp, ett_pap_peer_id);
- proto_tree_add_text(peer_id_tree, tvb, ++offset, ppp_min(peer_id_length, length),
- "Peer-ID (%d byte%s)", peer_id_length, plurality(peer_id_length, "", "s"));
- offset+=peer_id_length;
- length-=peer_id_length;
- if (length > 0) {
- password_length = tvb_get_guint8(tvb, offset);
- if (--length > 0) {
- tpw = proto_tree_add_text(field_tree, tvb, offset, 1,
- "Password length: %d byte%s", password_length, plurality(password_length, "", "s"));
- passwd_tree = proto_item_add_subtree(tpw, ett_pap_password);
- proto_tree_add_text(passwd_tree, tvb, ++offset, ppp_min(password_length, length),
- "Password (%d byte%s)", password_length, plurality(password_length, "", "s"));
- }
- }
- }
- }
- }
- break;
-
- case CONFACK:
- case CONFNAK:
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Data (%d byte%s)", length, plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, ett_pap_data);
- msg_length = tvb_get_guint8(tvb, offset);
- tm = proto_tree_add_text(field_tree, tvb, offset, 1,
- "Message length: %d byte%s", msg_length, plurality(msg_length, "", "s"));
- if (--length > 0) {
- message_tree = proto_item_add_subtree(tm, ett_pap_message);
- proto_tree_add_text(message_tree, tvb, ++offset, ppp_min(msg_length, length),
- "Message (%d byte%s)", msg_length, plurality(msg_length, "", "s"));
- }
- }
- }
- break;
- default:
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Stuff (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
- }
-}
-
-/*
- * Handles CHAP just as a protocol field
- */
-static void
-dissect_chap( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree ) {
- proto_item *ti;
- proto_tree *fh_tree = NULL;
- proto_item *tf;
- proto_tree *field_tree;
- proto_item *tv;
- proto_tree *value_tree;
-
- guint8 code, id, value_size;
- guint16 length;
- int offset;
- int name_length;
-
- code = tvb_get_guint8(tvb, 0);
- id = tvb_get_guint8(tvb, 1);
- length = tvb_get_ntohs(tvb, 2);
-
- if(check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "PPP CHAP");
-
- if(check_col(pinfo->cinfo, COL_INFO))
- col_add_str(pinfo->cinfo, COL_INFO,
- val_to_str(code, chap_vals, "Unknown"));
-
- if(tree) {
- ti = proto_tree_add_item(tree, proto_chap, tvb, 0, length, FALSE);
- fh_tree = proto_item_add_subtree(ti, ett_chap);
- proto_tree_add_text(fh_tree, tvb, 0, 1, "Code: %s (0x%02x)",
- val_to_str(code, chap_vals, "Unknown"), code);
- proto_tree_add_text(fh_tree, tvb, 1, 1, "Identifier: 0x%02x",
- id);
- proto_tree_add_text(fh_tree, tvb, 2, 2, "Length: %u",
- length);
- }
- offset = 4;
- length -= 4;
-
- switch (code) {
- case CHAP_CHAL:
- case CHAP_RESP:
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Data (%d byte%s)", length,
- plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, ett_chap_data);
- value_size = tvb_get_guint8(tvb, offset);
- name_length = length - value_size - 1;
- tv = proto_tree_add_text(field_tree, tvb, offset, 1,
- "Value Size: %d byte%s",
- value_size, plurality(value_size, "", "s"));
- if (--length > 0) {
- value_tree = proto_item_add_subtree(tv, ett_chap_value);
- proto_tree_add_text(value_tree, tvb, ++offset,
- ppp_min(value_size, length),
- "Value (%d byte%s)",
- value_size, plurality(value_size, "", "s"));
- offset+=value_size;
- length-=value_size;
- if (length > 0) {
- proto_tree_add_text(field_tree, tvb, offset,
- ppp_min(name_length, length),
- "Name (%d byte%s)", name_length,
- plurality(name_length, "", "s"));
- }
- }
- }
- }
- break;
-
- case CHAP_SUCC:
- case CHAP_FAIL:
- if(tree) {
- if (length > 0) {
- tf = proto_tree_add_text(fh_tree, tvb, offset, length,
- "Data (%d byte%s)", length,
- plurality(length, "", "s"));
- field_tree = proto_item_add_subtree(tf, ett_chap_data);
- tv = proto_tree_add_text(field_tree, tvb, offset, length,
- "Message: %d byte%s",
- length, plurality(length, "", "s"));
- }
- }
- break;
- default:
- if (length > 0)
- proto_tree_add_text(fh_tree, tvb, offset, length, "Stuff (%d byte%s)",
- length, plurality(length, "", "s"));
- break;
- }
-}
-
-/*
- * RFC 2472.
- */
-static void
-dissect_ipv6cp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- dissect_cp(tvb, proto_ipv6cp, ett_ipv6cp, cp_vals, ett_ipv6cp_options,
- ipv6cp_opts, N_IPV6CP_OPTS, pinfo, tree);
-}
-
-static void dissect_ipv6cp_if_id_opt(const ip_tcp_opt *optp, tvbuff_t *tvb,
- int offset, guint length, packet_info *pinfo _U_,
- proto_tree *tree)
-{
- proto_tree_add_text(tree, tvb, offset, length, "%s: %02x%02x:%02x%02x:%02x%x:%02x%02x",
- optp->name,
- tvb_get_guint8(tvb, offset + 2),
- tvb_get_guint8(tvb, offset + 3),
- tvb_get_guint8(tvb, offset + 4),
- tvb_get_guint8(tvb, offset + 5),
- tvb_get_guint8(tvb, offset + 6),
- tvb_get_guint8(tvb, offset + 7),
- tvb_get_guint8(tvb, offset + 8),
- tvb_get_guint8(tvb, offset + 9)
- );
-}
-
-void
-proto_register_ppp(void)
-{
- static hf_register_info hf[] = {
- { &hf_ppp_address,
- { "Address", "ppp.address", FT_UINT8, BASE_HEX,
- NULL, 0x0, "", HFILL }},
-
- { &hf_ppp_control,
- { "Control", "ppp.control", FT_UINT8, BASE_HEX,
- NULL, 0x0, "", HFILL }},
-
- { &hf_ppp_protocol,
- { "Protocol", "ppp.protocol", FT_UINT16, BASE_HEX,
- VALS(ppp_vals), 0x0, "", HFILL }},
- };
- static gint *ett[] = {
- &ett_ppp,
- };
-
- module_t *ppp_module;
-
- proto_ppp = proto_register_protocol("Point-to-Point Protocol", "PPP", "ppp");
- proto_register_field_array(proto_ppp, hf, array_length(hf));
- proto_register_subtree_array(ett, array_length(ett));
-
-/* subdissector code */
- ppp_subdissector_table = register_dissector_table("ppp.protocol",
- "PPP protocol", FT_UINT16, BASE_HEX);
-
- register_dissector("ppp_hdlc", dissect_ppp_hdlc, proto_ppp);
- register_dissector("ppp_lcp_options", dissect_lcp_options, proto_ppp);
- register_dissector("ppp", dissect_ppp, proto_ppp);
-
- /* Register the preferences for the ppp protocol */
- ppp_module = prefs_register_protocol(proto_ppp, NULL);
-
- prefs_register_enum_preference(ppp_module,
- "fcs_type",
- "PPP Frame Checksum Type",
- "The type of PPP frame checksum (none, 16-bit, 32-bit)",
- &ppp_fcs_decode,
- fcs_options, FALSE);
- prefs_register_bool_preference(ppp_module,
- "decompress_vj",
- "Decompress Van Jacobson-compressed frames",
- "Whether Van Jacobson-compressed PPP frames should be decompressed",
- &ppp_vj_decomp);
- prefs_register_uint_preference(ppp_module,
- "default_proto_id",
- "PPPMuxCP Default PID",
- "Default Protocol ID to be used for PPPMuxCP",
- 16, &pppmux_def_prot_id);
-}
-
-void
-proto_reg_handoff_ppp(void)
-{
- dissector_handle_t ppp_hdlc_handle, ppp_handle;
-
- /*
- * Get a handle for the CHDLC dissector.
- */
- chdlc_handle = find_dissector("chdlc");
- data_handle = find_dissector("data");
-
- ppp_hdlc_handle = find_dissector("ppp_hdlc");
- ppp_handle = find_dissector("ppp");
- dissector_add("wtap_encap", WTAP_ENCAP_PPP, ppp_hdlc_handle);
- dissector_add("wtap_encap", WTAP_ENCAP_PPP_WITH_PHDR, ppp_hdlc_handle);
- dissector_add("fr.ietf", NLPID_PPP, ppp_handle);
- dissector_add("gre.proto", ETHERTYPE_PPP, ppp_hdlc_handle);
-}
-
-void
-proto_register_mp(void)
-{
- static hf_register_info hf[] = {
- { &hf_mp_frag_first,
- { "First fragment", "mp.first", FT_BOOLEAN, 8,
- TFS(&frag_truth), MP_FRAG_FIRST, "", HFILL }},
-
- { &hf_mp_frag_last,
- { "Last fragment", "mp.last", FT_BOOLEAN, 8,
- TFS(&frag_truth), MP_FRAG_LAST, "", HFILL }},
-
- { &hf_mp_sequence_num,
- { "Sequence number", "mp.seq", FT_UINT24, BASE_DEC, NULL, 0x0,
- "", HFILL }}
- };
- static gint *ett[] = {
- &ett_mp,
- &ett_mp_flags,
- };
-
- proto_mp = proto_register_protocol("PPP Multilink Protocol", "PPP MP", "mp");
- proto_register_field_array(proto_mp, hf, array_length(hf));
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_mp(void)
-{
- dissector_handle_t mp_handle;
-
- mp_handle = create_dissector_handle(dissect_mp, proto_mp);
- dissector_add("ppp.protocol", PPP_MP, mp_handle);
-}
-
-void
-proto_register_lcp(void)
-{
- static gint *ett[] = {
- &ett_lcp,
- &ett_lcp_options,
- &ett_lcp_authprot_opt,
- &ett_lcp_qualprot_opt,
- &ett_lcp_fcs_alternatives_opt,
- &ett_lcp_numbered_mode_opt,
- &ett_lcp_callback_opt,
- &ett_lcp_multilink_ep_disc_opt,
- &ett_lcp_internationalization_opt,
- };
-
- proto_lcp = proto_register_protocol("PPP Link Control Protocol", "PPP LCP",
- "lcp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_lcp(void)
-{
- dissector_handle_t lcp_handle;
-
- lcp_handle = create_dissector_handle(dissect_lcp, proto_lcp);
- dissector_add("ppp.protocol", PPP_LCP, lcp_handle);
-
- /*
- * NDISWAN on Windows translates Ethernet frames from higher-level
- * protocols into PPP frames to hand to the PPP driver, and translates
- * PPP frames from the PPP driver to hand to the higher-level protocols.
- *
- * Apparently the PPP driver, on at least some versions of Windows,
- * passes frames for internal-to-PPP protocols up through NDISWAN;
- * the protocol type field appears to be passed through unchanged
- * (unlike what's done with, for example, the protocol type field
- * for IP, which is mapped from its PPP value to its Ethernet value).
- *
- * This means that we may see, on Ethernet captures, frames for
- * protocols internal to PPP, so we register PPP_LCP with the
- * "ethertype" dissector table as well as the PPP protocol dissector
- * table.
- */
- dissector_add("ethertype", PPP_LCP, lcp_handle);
-}
-
-void
-proto_register_ipcp(void)
-{
- static gint *ett[] = {
- &ett_ipcp,
- &ett_ipcp_options,
- &ett_ipcp_ipaddrs_opt,
- &ett_ipcp_compressprot_opt,
- };
-
- proto_ipcp = proto_register_protocol("PPP IP Control Protocol", "PPP IPCP",
- "ipcp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_ipcp(void)
-{
- dissector_handle_t ipcp_handle;
-
- ipcp_handle = create_dissector_handle(dissect_ipcp, proto_ipcp);
- dissector_add("ppp.protocol", PPP_IPCP, ipcp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_IPCP, ipcp_handle);
-}
-
-void
-proto_register_osicp(void)
-{
- static gint *ett[] = {
- &ett_osicp,
- &ett_osicp_options,
- &ett_osicp_align_npdu_opt,
- };
-
- proto_osicp = proto_register_protocol("PPP OSI Control Protocol", "PPP OSICP",
- "osicp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_osicp(void)
-{
- dissector_handle_t osicp_handle;
-
- osicp_handle = create_dissector_handle(dissect_osicp, proto_osicp);
- dissector_add("ppp.protocol", PPP_OSICP, osicp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_OSICP, osicp_handle);
-}
-
-void
-proto_register_ccp(void)
-{
- static gint *ett[] = {
- &ett_ccp,
- &ett_ccp_options,
- &ett_ccp_stac_opt,
- &ett_ccp_mppc_opt,
- &ett_ccp_bsdcomp_opt,
- &ett_ccp_lzsdcp_opt,
- &ett_ccp_mvrca_opt,
- &ett_ccp_deflate_opt,
- };
-
- proto_ccp = proto_register_protocol("PPP Compression Control Protocol",
- "PPP CCP", "ccp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_ccp(void)
-{
- dissector_handle_t ccp_handle;
-
- ccp_handle = create_dissector_handle(dissect_ccp, proto_ccp);
- dissector_add("ppp.protocol", PPP_CCP, ccp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_CCP, ccp_handle);
-}
-
-void
-proto_register_cbcp(void)
-{
- static gint *ett[] = {
- &ett_cbcp,
- &ett_cbcp_options,
- &ett_cbcp_callback_opt,
- &ett_cbcp_callback_opt_addr
- };
-
- proto_cbcp = proto_register_protocol("PPP Callback Control Protocol",
- "PPP CBCP", "cbcp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_cbcp(void)
-{
- dissector_handle_t cbcp_handle;
-
- cbcp_handle = create_dissector_handle(dissect_cbcp, proto_cbcp);
- dissector_add("ppp.protocol", PPP_CBCP, cbcp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_CBCP, cbcp_handle);
-}
-
-void
-proto_register_bacp(void)
-{
- static gint *ett[] = {
- &ett_bacp,
- &ett_bacp_options,
- &ett_bacp_favored_peer_opt
- };
-
- proto_bacp = proto_register_protocol("PPP Bandwidth Allocation Control Protocol",
- "PPP BACP", "bacp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_bacp(void)
-{
- dissector_handle_t bacp_handle;
-
- bacp_handle = create_dissector_handle(dissect_bacp, proto_bacp);
- dissector_add("ppp.protocol", PPP_BACP, bacp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_BACP, bacp_handle);
-}
-
-void
-proto_register_bap(void)
-{
- static gint *ett[] = {
- &ett_bap,
- &ett_bap_options,
- &ett_bap_link_type_opt,
- &ett_bap_phone_delta_opt,
- &ett_bap_phone_delta_subopt,
- &ett_bap_call_status_opt
- };
-
- proto_bap = proto_register_protocol("PPP Bandwidth Allocation Protocol",
- "PPP BAP", "bap");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_bap(void)
-{
- dissector_handle_t bap_handle;
-
- bap_handle = create_dissector_handle(dissect_bap, proto_bap);
- dissector_add("ppp.protocol", PPP_BAP, bap_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_BAP, bap_handle);
-}
-
-void
-proto_register_comp_data(void)
-{
- static gint *ett[] = {
- &ett_comp_data
- };
-
- proto_comp_data = proto_register_protocol("PPP Compressed Datagram",
- "PPP Comp", "comp_data");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_comp_data(void)
-{
- dissector_handle_t comp_data_handle;
-
- comp_data_handle = create_dissector_handle(dissect_comp_data,
- proto_comp_data);
- dissector_add("ppp.protocol", PPP_COMP, comp_data_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_COMP, comp_data_handle);
-}
-
-void
-proto_register_pap(void)
-{
- static gint *ett[] = {
- &ett_pap,
- &ett_pap_data,
- &ett_pap_peer_id,
- &ett_pap_password,
- &ett_pap_message,
- };
-
- proto_pap = proto_register_protocol("PPP Password Authentication Protocol", "PPP PAP",
- "pap");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_pap(void)
-{
- dissector_handle_t pap_handle;
-
- pap_handle = create_dissector_handle(dissect_pap, proto_pap);
- dissector_add("ppp.protocol", PPP_PAP, pap_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_PAP, pap_handle);
-}
-
-void
-proto_register_chap(void)
-{
- static gint *ett[] = {
- &ett_chap,
- &ett_chap_data,
- &ett_chap_value,
- &ett_chap_name,
- &ett_chap_message,
- };
-
- proto_chap = proto_register_protocol("PPP Challenge Handshake Authentication Protocol", "PPP CHAP",
- "chap");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_chap(void)
-{
- dissector_handle_t chap_handle;
-
- chap_handle = create_dissector_handle(dissect_chap, proto_chap);
- dissector_add("ppp.protocol", PPP_CHAP, chap_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_CHAP, chap_handle);
-}
-
-void
-proto_register_pppmuxcp(void)
-{
- static gint *ett[] = {
- &ett_pppmuxcp,
- &ett_pppmuxcp_options,
- };
-
- proto_pppmuxcp = proto_register_protocol("PPPMux Control Protocol",
- "PPP PPPMuxCP",
- "pppmuxcp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-
-void
-proto_reg_handoff_pppmuxcp(void)
-{
- dissector_handle_t muxcp_handle;
-
- muxcp_handle = create_dissector_handle(dissect_pppmuxcp, proto_pppmuxcp);
- dissector_add("ppp.protocol", PPP_MUXCP, muxcp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_MUXCP, muxcp_handle);
-}
-
-
-void
-proto_register_pppmux(void)
-{
- static gint *ett[] = {
- &ett_pppmux,
- &ett_pppmux_subframe,
- &ett_pppmux_subframe_hdr,
- &ett_pppmux_subframe_flags,
- &ett_pppmux_subframe_info,
- };
-
- proto_pppmux = proto_register_protocol("PPP Multiplexing",
- "PPP PPPMux",
- "pppmux");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_pppmux(void)
-{
- dissector_handle_t pppmux_handle;
-
- pppmux_handle = create_dissector_handle(dissect_pppmux, proto_pppmux);
- dissector_add("ppp.protocol", PPP_MUX, pppmux_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_MUX, pppmux_handle);
-}
-
-void
-proto_register_mplscp(void)
-{
- static gint *ett[] = {
- &ett_mplscp,
- &ett_mplscp_options,
- };
-
- proto_mplscp = proto_register_protocol("PPP MPLS Control Protocol",
- "PPP MPLSCP", "mplscp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_mplscp(void)
-{
- dissector_handle_t mplscp_handle;
-
- mplscp_handle = create_dissector_handle(dissect_mplscp, proto_mplscp);
- dissector_add("ppp.protocol", PPP_MPLSCP, mplscp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_MPLSCP, mplscp_handle);
-}
-
-void
-proto_register_cdpcp(void)
-{
- static gint *ett[] = {
- &ett_cdpcp,
- &ett_cdpcp_options,
- };
-
- proto_cdpcp = proto_register_protocol("PPP CDP Control Protocol",
- "PPP CDPCP", "cdpcp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_cdpcp(void)
-{
- dissector_handle_t cdpcp_handle;
-
- cdpcp_handle = create_dissector_handle(dissect_cdpcp, proto_cdpcp);
- dissector_add("ppp.protocol", PPP_CDPCP, cdpcp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_CDPCP, cdpcp_handle);
-}
-
-void
-proto_register_ipv6cp(void)
-{
- static gint *ett[] = {
- &ett_ipv6cp,
- &ett_ipv6cp_options,
- &ett_ipv6cp_if_id_opt,
- &ett_ipv6cp_compressprot_opt,
- };
-
- proto_ipv6cp = proto_register_protocol("PPP IPv6 Control Protocol",
- "PPP IPV6CP", "ipv6cp");
- proto_register_subtree_array(ett, array_length(ett));
-}
-
-void
-proto_reg_handoff_ipv6cp(void)
-{
- dissector_handle_t ipv6cp_handle;
-
- ipv6cp_handle = create_dissector_handle(dissect_ipv6cp, proto_ipv6cp);
- dissector_add("ppp.protocol", PPP_IPV6CP, ipv6cp_handle);
-
- /*
- * See above comment about NDISWAN for an explanation of why we're
- * registering with the "ethertype" dissector table.
- */
- dissector_add("ethertype", PPP_IPV6CP, ipv6cp_handle);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 22:00:05 +0000