/* packet-mip.c * Routines for Mobile IP dissection * Copyright 2000, Stefan Raab * Copyright 2007, Ville Nuorvala * Copyright 2009, Ohuchi Munenori * Copyright 2010, Yi Ren * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include void proto_register_mip(void); void proto_reg_handoff_mip(void); static dissector_table_t mip_nvse_ext_dissector_table; /* Initialize the protocol and registered fields */ static int proto_mip = -1; static int hf_mip_type = -1; static int hf_mip_flags = -1; static int hf_mip_s = -1; static int hf_mip_b = -1; static int hf_mip_d = -1; static int hf_mip_m = -1; static int hf_mip_g = -1; static int hf_mip_v = -1; static int hf_mip_t = -1; static int hf_mip_x = -1; static int hf_mip_code = -1; static int hf_mip_life = -1; static int hf_mip_homeaddr = -1; static int hf_mip_haaddr = -1; static int hf_mip_coa = -1; static int hf_mip_ident = -1; static int hf_mip_ext_type = -1; static int hf_mip_gaext_stype = -1; static int hf_mip_ext_len = -1; static int hf_mip_ext = -1; static int hf_mip_aext_spi = -1; static int hf_mip_aext_auth = -1; static int hf_mip_next_nai = -1; static int hf_mip_rext_flags = -1; static int hf_mip_rext_i = -1; static int hf_mip_rext_reserved = -1; static int hf_mip_rext_tstamp = -1; static int hf_mip_rev_reserved = -1; static int hf_mip_flags2 = -1; static int hf_mip_rev_a = -1; static int hf_mip_rev_i = -1; static int hf_mip_rev_reserved2 = -1; static int hf_mip_ack_reserved = -1; static int hf_mip_ack_i = -1; static int hf_mip_ack_reserved2 = -1; static int hf_mip_hda = -1; static int hf_mip_fda = -1; static int hf_mip_revid = -1; static int hf_mip_dhaext_stype = -1; static int hf_mip_dhaext_addr = -1; static int hf_mip_mstrext_stype = -1; static int hf_mip_mstrext_text = -1; static int hf_mip_nattt_nexthdr = -1; static int hf_mip_nattt_reserved = -1; static int hf_mip_utrqext_stype = -1; static int hf_mip_utrqext_reserved1 = -1; static int hf_mip_utrqext_flags = -1; static int hf_mip_utrqext_f = -1; static int hf_mip_utrqext_r = -1; static int hf_mip_utrqext_reserved2 = -1; static int hf_mip_utrqext_encap_type = -1; static int hf_mip_utrqext_reserved3 = -1; static int hf_mip_utrpext_stype = -1; static int hf_mip_utrpext_code = -1; static int hf_mip_utrpext_flags = -1; static int hf_mip_utrpext_f = -1; static int hf_mip_utrpext_reserved = -1; static int hf_mip_utrpext_keepalive = -1; static int hf_mip_pmipv4nonskipext_stype = -1; static int hf_mip_pmipv4nonskipext_pernodeauthmethod = -1; static int hf_mip_pmipv4skipext_stype = -1; static int hf_mip_pmipv4skipext_interfaceid = -1; static int hf_mip_pmipv4skipext_deviceid_type = -1; static int hf_mip_pmipv4skipext_deviceid_id = -1; static int hf_mip_pmipv4skipext_subscriberid_type = -1; static int hf_mip_pmipv4skipext_subscriberid_id = -1; static int hf_mip_pmipv4skipext_accesstechnology_type = -1; static int hf_mip_cvse_reserved = -1; static int hf_mip_cvse_vendor_org_id = -1; static int hf_mip_cvse_verizon_cvse_type = -1; static int hf_mip_cvse_3gpp2_cvse_type = -1; static int hf_mip_cvse_3gpp2_grekey = -1; static int hf_mip_cvse_vendor_cvse_type = -1; static int hf_mip_cvse_vendor_cvse_value = -1; static int hf_mip_nvse_reserved = -1; static int hf_mip_nvse_vendor_org_id = -1; static int hf_mip_nvse_vendor_nvse_type = -1; static int hf_mip_nvse_vendor_nvse_value = -1; static int hf_mip_nvse_3gpp2_type = -1; static int hf_mip_nvse_3gpp2_type17_entity = -1; static int hf_mip_nvse_3gpp2_type16_value = -1; static int hf_mip_nvse_3gpp2_type17_subtype1 = -1; static int hf_mip_nvse_3gpp2_type17_subtype2 = -1; static int hf_mip_nvse_3gpp2_type17_length = -1; static int hf_mip_nvse_3gpp2_type17_prim_dns = -1; static int hf_mip_nvse_3gpp2_type17_sec_dns = -1; static int hf_mip_mne_sub_type = -1; static int hf_mip_mne_code = -1; static int hf_mip_mne_prefix_length = -1; static int hf_mip_mne_prefix = -1; static int hf_mip_mne_reserved = -1; /* Initialize the subtree pointers */ static gint ett_mip = -1; static gint ett_mip_flags = -1; static gint ett_mip_ext = -1; static gint ett_mip_exts = -1; static gint ett_mip_pmipv4_ext = -1; static expert_field ei_mip_data_not_dissected = EI_INIT; static dissector_handle_t mip_handle; /* Port used for Mobile IP */ #define UDP_PORT_MIP 434 /* http://www.iana.org/assignments/mobileip-numbers */ typedef enum { MIP_REGISTRATION_REQUEST = 1, MIP_REGISTRATION_REPLY = 3, MIP_NATT_TUNNEL_DATA = 4, MIP_REGISTRATION_REVOCATION = 7, MIP_REGISTRATION_REVOCATION_ACK = 15, MIP_HANDOFF_REQUEST = 16, MIP_HANDOFF_REPLY = 17, MIP_REGIONAL_REG_REQ = 18, MIP_REGIONAL_REG_REP = 19, MIP_FAST_BINDING_UPD = 20, MIP_FAST_BINDING_ACK = 21, MIP_EXPERIMENTAL_MESSAGE = 255 } mipMessageTypes; static const value_string mip_types[] = { {MIP_REGISTRATION_REQUEST, "Registration Request"}, {MIP_REGISTRATION_REPLY, "Registration Reply"}, {MIP_NATT_TUNNEL_DATA, "NAT Traversal Tunnel Data"}, {MIP_REGISTRATION_REVOCATION, "Registration Revocation"}, {MIP_REGISTRATION_REVOCATION_ACK, "Registration Revocation Acknowledgement"}, {MIP_HANDOFF_REQUEST, "NAT Traversal Tunnel Data"}, {MIP_HANDOFF_REPLY, "NAT Traversal Tunnel Data"}, {MIP_REGIONAL_REG_REQ, "NAT Traversal Tunnel Data"}, {MIP_REGIONAL_REG_REP, "NAT Traversal Tunnel Data"}, {MIP_FAST_BINDING_UPD, "NAT Traversal Tunnel Data"}, {MIP_FAST_BINDING_ACK, "NAT Traversal Tunnel Data"}, {MIP_EXPERIMENTAL_MESSAGE, "Message for Experimental Use"}, {0, NULL} }; static const value_string mip_reply_codes[]= { {0, "Reg Accepted"}, {1, "Reg Accepted, but Simultaneous Bindings Unsupported"}, {64, "Reg Deny (FA)- Unspecified Reason"}, {65, "Reg Deny (FA)- Administratively Prohibited"}, {66, "Reg Deny (FA)- Insufficient Resources"}, {67, "Reg Deny (FA)- MN Failed Authentication"}, {68, "Reg Deny (FA)- HA Failed Authentication"}, {69, "Reg Deny (FA)- Requested Lifetime too Long"}, {70, "Reg Deny (FA)- Poorly Formed Request"}, {71, "Reg Deny (FA)- Poorly Formed Reply"}, {72, "Reg Deny (FA)- Requested Encapsulation Unavailable"}, {73, "Reg Deny (FA)- VJ Compression Unavailable"}, {74, "Reg Deny (FA)- Requested Reverse Tunnel Unavailable"}, {75, "Reg Deny (FA)- Reverse Tunnel Is Mandatory and 'T' Bit Not Set"}, {76, "Reg Deny (FA)- Mobile Node Too Distant"}, {77, "Reg Deny (FA)- Invalid Care-of Address"}, {78, "Reg Deny (FA)- Registration Timeout"}, {79, "Reg Deny (FA)- Delivery Style Not Supported"}, {80, "Reg Deny (FA)- Home Network Unreachable"}, {81, "Reg Deny (FA)- HA Host Unreachable"}, {82, "Reg Deny (FA)- HA Port Unreachable"}, {88, "Reg Deny (FA)- HA Unreachable"}, {89, "Reg Deny (FA)- Vendor-specific Reason"}, {90, "Reg Deny (FA)- Non-zero HA Address Required"}, {96, "Reg Deny (FA)(NAI) - Non-zero Home Address Required"}, {97, "Reg Deny (FA)(NAI) - Missing NAI"}, {98, "Reg Deny (FA)(NAI) - Missing Home Agent"}, {99, "Reg Deny (FA)(NAI) - Missing Home Address"}, {100, "Reg Deny (FA)- Unable to Interpret CVSE Sent by MN"}, {101, "Reg Deny (FA)- Unable to Interpret CVSE Sent by HA"}, {104, "Reg Deny (FA)- Unknown Challenge"}, {105, "Reg Deny (FA)- Missing Challenge"}, {106, "Reg Deny (FA)- Stale Challenge"}, {107, "Reg Deny (FA)- Missing MN-FA Key Generation Nonce Reply Extension"}, {108, "Reg Deny (FA)- MN Failed AAA Authentication"}, {109, "Reg Deny (FA)- HA Sent Wrong Challenge in Reply"}, {127, "Reg Deny (FA)- Error Code for Experimental Use"}, {128, "Reg Deny (HA)- Unspecified"}, {129, "Reg Deny (HA)- Administratively Prohibited"}, {130, "Reg Deny (HA)- Insufficient Resources"}, {131, "Reg Deny (HA)- MN Failed Authentication"}, {132, "Reg Deny (HA)- FA Failed Authentication"}, {133, "Reg Deny (HA)- Registration ID Mismatch"}, {134, "Reg Deny (HA)- Poorly Formed Request"}, {135, "Reg Deny (HA)- Too Many Simultaneous Bindings"}, {136, "Reg Deny (HA)- Unknown HA Address"}, {137, "Reg Deny (HA)- Requested Reverse Tunnel Unavailable"}, {138, "Reg Deny (HA)- Reverse Tunnel Is Mandatory and 'T' Bit Not Set"}, {139, "Reg Deny (HA)- Requested Encapsulation Unavailable"}, {140, "Reg Deny (HA)- Unable to Interpret CVSE Sent by MN"}, {141, "Reg Deny (HA)- Unable to Interpret CVSE Sent by FA"}, {142, "Reg Deny (HA)- UDP Encapsulation Unavailable"}, {143, "Reg Deny (HA)- Register with Redirected HA"}, {144, "Reg Deny (HA)- MN Failed AAA Authentication"}, {149, "Reg Deny (HA)- PMIP_UNSUPPORTED"}, /* draft-leung-mip4-proxy-mode */ {150, "Reg Deny (HA)- PMIP_DISALLOWED"}, /* draft-leung-mip4-proxy-mode */ {192, "Reg Deny (HA)- Error Code for Experimental Use"}, {0, NULL} }; static const value_string mip_nattt_nexthdr[]= { {4, "IP Header"}, {47, "GRE Header"}, {55, "Minimal IP Encapsulation Header"}, {0, NULL} }; typedef enum { MH_AUTH_EXT = 32, MF_AUTH_EXT = 33, FH_AUTH_EXT = 34, GEN_AUTH_EXT = 36, /* RFC 3012 */ OLD_CVSE_EXT = 37, /* RFC 3115 */ CVSE_EXT = 38, /* RFC 3115 */ UDP_TUN_REP_EXT = 44, /* RFC 3519 */ MIP_FA_ERROR_EXT = 45, /* [RFC4636] */ MIP_GFA_IP_ADDR_EXT = 46, /* [RFC4857] */ PMIPv4_NON_SKIP_EXT = 47, /* [RFC5563] */ MN_NAI_EXT = 131, /* RFC 2794 */ MF_CHALLENGE_EXT = 132, /* RFC 3012 */ OLD_NVSE_EXT = 133, /* RFC 3115 */ NVSE_EXT = 134, /* RFC 3115 */ REV_SUPP_EXT = 137, /* RFC 3543 */ DYN_HA_EXT = 139, /* RFC 4433 */ UDP_TUN_REQ_EXT = 144, /* RFC 3519 */ MSG_STR_EXT = 145, PMIPv4_SKIP_EXT = 147, /* draft-leung-mip4-proxy-mode */ MNE_EXT = 148, /* RFC 5177 */ SKIP_EXP_EXT = 255, /* RFC 4064 */ GRE_KEY_EXT = 0x0401 } MIP_EXTS; static const value_string mip_ext_types[]= { {MH_AUTH_EXT, "Mobile-Home Authentication Extension"}, {MF_AUTH_EXT, "Mobile-Foreign Authentication Extension"}, {FH_AUTH_EXT, "Foreign-Home Authentication Extension"}, {GEN_AUTH_EXT, "Generalized Mobile-IP Authentication Extension"}, {OLD_CVSE_EXT, "Critical Vendor/Organization Specific Extension"}, {CVSE_EXT, "Critical Vendor/Organization Specific Extension"}, {UDP_TUN_REP_EXT, "UDP Tunnel Reply Extension"}, {MIP_FA_ERROR_EXT, "FA Error Extension"}, {MIP_GFA_IP_ADDR_EXT, "GFA IP Address Extension"}, {PMIPv4_NON_SKIP_EXT, "Proxy Mobile IPv4 Non-skippable Extension"}, {128, "Deprecated (2001 Aug 31)"}, {129, "SKIP Firewall Traversal Extension"}, /*[RFC2356]*/ {130, "Encapsulating Delivery Style Extension"}, /*[RFC3024]*/ {MN_NAI_EXT, "Mobile Node NAI Extension"}, {MF_CHALLENGE_EXT, "MN-FA Challenge Extension"}, {OLD_NVSE_EXT, "Normal Vendor/Organization Specific Extension"}, {NVSE_EXT, "Normal Vendor/Organization Specific Extension"}, {136, "NAI Carrying Extension"}, /*[RFC3846]*/ {REV_SUPP_EXT, "Revocation Support Extension"}, {138, "Generalized Link Layer Address Registration Extension"}, /*[RFC4881]*/ {DYN_HA_EXT, "Dynamic HA Extension"}, {140, "Hierarchical Foreign Agent Extension"}, /*[RFC4857]*/ {141, "Replay Protection Style"}, /*[RFC4857]*/ {142, "Regional Registration Lifetime Extension"}, /*[RFC4857]*/ {UDP_TUN_REQ_EXT, "UDP Tunnel Request Extension"}, {MSG_STR_EXT, "Message String Extension"}, {PMIPv4_SKIP_EXT, "Proxy Mobile IPv4 Skippable Extension"}, {MNE_EXT, "Mobile Network Extension"}, /*[RFC5177]*/ {149, "Trusted Networks Configured (TNC) Extension"}, /*[RFC5265]*/ {150, "Reserved"}, {151, "Service Selection Extension"}, /*[RFC5446]*/ {152, "Dual Stack (DSMIPv4) Extension"}, /*[RFC5454]*/ {SKIP_EXP_EXT, "Skippable Extension for Experimental use"}, {0, NULL} }; static const value_string mip_gaext_stypes[]= { {1, "MN-AAA Authentication"}, {2, "FA-FA Authentication"}, {3, "MN-GFA Authentication"}, {4, "MN-PAR Auth Extension"}, {0, NULL} }; /* UDP Tunnel Reply Extension: */ static const value_string mip_utrpext_stypes[]= { {0, "Regular UDP Tunnel Reply Extension"}, {0, NULL} }; /* Dynamic HA Extension subtypes */ static const value_string mip_dhaext_stypes[]= { {1, "Requested HA Extension"}, {2, "Redirected HA Extension"}, {0, NULL} }; static const value_string mip_mstrext_stypes[]= { {1, "HA Extension"}, {2, "FA Extension"}, {0, NULL} }; static const value_string mip_utrqext_stypes[]= { {0, ""}, {0, NULL} }; static const value_string mip_utrqext_encap_types[]= { {4, "IP Header"}, {47, "GRE Header"}, {55, "Minimal IP Encapsulation Header"}, {0, NULL} }; static const value_string mip_utrpext_codes[]= { {0, "Will do Tunneling"}, {64, "Tunneling Declined, Reason Unspecified"}, {0, NULL} }; static const value_string mip_pmipv4nonskipext_stypes[]= { {0, "Unknown"}, {1, "Per-Node Authentication Method"}, {0, NULL} }; /* PMIPv4 Per-Node Authentication Method Types */ static const value_string mip_pmipv4nonskipext_pernodeauthmethod_types[]= { {0, "Reserved"}, {1, "FA-HA Authentication"}, {2, "IPSec Authentication"}, {0, NULL} }; #define PMIPv4_SKIPEXT_STYPE_INTERFACE_ID (1) #define PMIPv4_SKIPEXT_STYPE_DEVICE_ID (2) #define PMIPv4_SKIPEXT_STYPE_SUBSCRIBER_ID (3) #define PMIPv4_SKIPEXT_STYPE_ACCESS_TECHNOLOGY (4) static const value_string mip_pmipv4skipext_stypes[]= { {0, "Unknown"}, {PMIPv4_SKIPEXT_STYPE_INTERFACE_ID, "Interface ID"}, {PMIPv4_SKIPEXT_STYPE_DEVICE_ID, "Device ID"}, {PMIPv4_SKIPEXT_STYPE_SUBSCRIBER_ID, "Subscriber ID"}, {PMIPv4_SKIPEXT_STYPE_ACCESS_TECHNOLOGY, "Access Technology Type"}, {0, NULL} }; /* PMIPv4 Device ID Types */ static const value_string mip_pmipv4skipext_deviceid_types[]= { {0, "Reserved"}, {1, "Ethernet MAC address"}, {2, "Mobile Equipment Identifier (MEID)"}, {3, "International Mobile Equipment Identity (IMEI)"}, {4, "Electronic Serial Number (ESN)"}, {0, NULL} }; /* PMIPv4 Subscriber ID Types */ static const value_string mip_pmipv4skipext_subscriberid_types[]= { {0, "Reserved"}, {1, "International Mobile Subscriber Identity (IMSI)"}, {0, NULL} }; /* Access Technology Types */ static const value_string mip_pmipv4skipext_accesstechnology_types[]= { {0, "Reserved"}, {1, "802.3"}, {2, "802.11a/b/g"}, {3, "802.16e"}, {4, "802.16m"}, {5, "3GPP EUTRAN/LTE"}, {6, "3GPP UTRAN/GERAN"}, {7, "3GPP2 1xRTT/HRPD"}, {8, "3GPP2 UMB"}, {0, NULL} }; static const value_string mip_cvse_verizon_cvse_types[]= { {0, "Reserved"}, {1, "MIP Key Request"}, {2, "MIP Key Data"}, {3, "AAA Authenticator"}, {4, "Public Key Invalid"}, {0, NULL} }; /*http://www.3gpp2.org/public_html/X/VSA-VSE.cfm*/ #if 0 static const value_string mip_cvse_3gpp2_cvse_types[]= { {257, "Accounting/Radius"}, {258, "Accounting/Diameter"}, {513, "Accounting/Diameter"}, {769, "Data Available Indicator/Data Ready to Send"}, {1025,"GRE Key"}, {1281, "Binding Type Extension"}, {1537, "GRE Tunnel Endpoint Extension"}, {0, NULL} }; #endif static const value_string mip_nvse_3gpp2_type_vals[]= { {16, "PPP Link Indicator"}, /* X.S0011-003-C v1.0 */ {17, "DNS server IP address"}, {0, NULL} }; static const value_string mip_nvse_3gpp2_type17_entity_vals[]= { {0, "Unknown"}, {1, "HAAA"}, {2, "VAAA"}, {3, "HA"}, {0, NULL} }; static const value_string mip_nvse_3gpp2_type17_vals[]= { {0, "main service instance"}, {1, "negotiate PPP"}, {2, "do not negotiate PPP"}, {0, NULL} }; static const value_string mip_mne_stypes[]= { {0, "Mobile Network Request"}, {1, "Explicit Mode Acknowledgement"}, {2, "Implicit Mode Acknowledgement"}, {0, NULL} }; static const value_string mip_mne_codes[]= { {0, "Success"}, {1, "Invalid prefix (MOBNET_INVALID_PREFIX_LEN)"}, {2, "Mobile Router is not authorized for prefix (MOBNET_UNAUTHORIZED)"}, {3, "Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED)"}, {0, NULL} }; static dissector_handle_t ip_handle; /* Code to dissect 3GPP2 extensions */ static int dissect_mip_priv_ext_3gpp2(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_) { int offset = 0; guint16 type; int length = tvb_reported_length(tvb); type = tvb_get_ntohs(tvb,offset); proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type, tvb, offset, 2, ENC_BIG_ENDIAN); offset+=2; switch(type){ case 16: /* PPP Link Indicator X.S0011-003-C v1.0 */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type16_value, tvb, offset, 2, ENC_BIG_ENDIAN); break; case 17: /* DNS server IP address X.S0011-002-C v3.0*/ /* Entity-Type */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_entity, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Sub-Type1 */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_subtype1, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Length */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* DNS server IP address */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_prim_dns, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; /* Sub-Type2 */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_subtype2, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Length */ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* DNS server IP address.*/ proto_tree_add_item(tree, hf_mip_nvse_3gpp2_type17_sec_dns, tvb, offset, 4, ENC_BIG_ENDIAN); break; default: proto_tree_add_expert(tree, pinfo, &ei_mip_data_not_dissected, tvb, offset, -1); break; } return length; } /* Code to dissect extensions */ static void dissect_mip_extensions( tvbuff_t *tvb, int offset, proto_tree *tree, packet_info *pinfo) { proto_tree *exts_tree=NULL; proto_tree *ext_tree; proto_tree *pmipv4_tree; gint ext_len; guint8 ext_type; guint8 ext_subtype=0; guint8 pmipv4skipext_subscriberid_type; gint hdrLen; guint32 cvse_vendor_id; guint16 cvse_3gpp2_type; int cvse_local_offset= 0; int nvse_local_offset= 0; int mne_local_offset= 0; /* Add our tree, if we have extensions */ exts_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_mip_exts, NULL, "Extensions"); /* And, handle each extension */ while (tvb_reported_length_remaining(tvb, offset) > 0) { /* Get our extension info */ ext_type = tvb_get_guint8(tvb, offset); if (ext_type == GEN_AUTH_EXT || ext_type == PMIPv4_NON_SKIP_EXT) { /* * Very nasty . . breaks normal extensions, since the length is * in the wrong place :( */ ext_subtype = tvb_get_guint8(tvb, offset + 1); ext_len = tvb_get_ntohs(tvb, offset + 2); hdrLen = 4; } else if(ext_type==CVSE_EXT){ /* * CVSE also breaks since it added reserved field before * the length field */ ext_len = tvb_get_ntohs(tvb, offset + 2); hdrLen = 4; } else { ext_len = tvb_get_guint8(tvb, offset + 1); hdrLen = 2; } ext_tree = proto_tree_add_subtree_format(exts_tree, tvb, offset, ext_len + hdrLen, ett_mip_ext, NULL, "Extension: %s", val_to_str(ext_type, mip_ext_types, "Unknown Extension %u")); proto_tree_add_uint(ext_tree, hf_mip_ext_type, tvb, offset, 1, ext_type); offset++; if (ext_type != GEN_AUTH_EXT && ext_type != PMIPv4_NON_SKIP_EXT && ext_type != CVSE_EXT) { /* Another nasty hack since GEN_AUTH_EXT and PMIPv4_NON_SKIP_EXT broke everything */ proto_tree_add_uint(ext_tree, hf_mip_ext_len, tvb, offset, 1, ext_len); offset++; } switch (ext_type) { case MH_AUTH_EXT: case MF_AUTH_EXT: case FH_AUTH_EXT: /* All these extensions look the same. 4 byte SPI followed by a key */ proto_tree_add_item(ext_tree, hf_mip_aext_spi, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(ext_tree, hf_mip_aext_auth, tvb, offset+4, ext_len-4, ENC_NA); break; case MN_NAI_EXT: proto_tree_add_item(ext_tree, hf_mip_next_nai, tvb, offset, ext_len, ENC_ASCII|ENC_NA); break; case GEN_AUTH_EXT: /* RFC 3012 */ /* * Very nasty . . breaks normal extensions, since the length is * in the wrong place :( */ proto_tree_add_uint(ext_tree, hf_mip_gaext_stype, tvb, offset, 1, ext_subtype); offset++; proto_tree_add_uint(ext_tree, hf_mip_ext_len, tvb, offset, 2, ext_len); offset+=2; /* SPI */ proto_tree_add_item(ext_tree, hf_mip_aext_spi, tvb, offset, 4, ENC_BIG_ENDIAN); /* Key */ proto_tree_add_item(ext_tree, hf_mip_aext_auth, tvb, offset + 4, ext_len - 4, ENC_NA); break; case REV_SUPP_EXT: /* RFC 3543 */ { /* flags */ static const int * flags[] = { &hf_mip_rext_i, &hf_mip_rext_reserved, NULL }; proto_tree_add_bitmask(ext_tree, tvb, offset, hf_mip_rext_flags, ett_mip_flags, flags, ENC_BIG_ENDIAN); /* registration revocation timestamp */ proto_tree_add_item(ext_tree, hf_mip_rext_tstamp, tvb, offset + 2, 4, ENC_BIG_ENDIAN); } break; case DYN_HA_EXT: /* RFC 4433 */ /* subtype */ proto_tree_add_item(ext_tree, hf_mip_dhaext_stype, tvb, offset, 1, ENC_BIG_ENDIAN); /* Home Agent */ proto_tree_add_item(ext_tree, hf_mip_dhaext_addr, tvb, offset + 1, 4, ENC_BIG_ENDIAN); break; case MSG_STR_EXT: /* sub-type */ proto_tree_add_item(ext_tree, hf_mip_mstrext_stype, tvb, offset, 1, ENC_BIG_ENDIAN); /* text */ proto_tree_add_item(ext_tree, hf_mip_mstrext_text, tvb, offset + 1, ext_len-1, ENC_ASCII|ENC_NA); break; case UDP_TUN_REQ_EXT: /* RFC 3519 */ { static const int * flags[] = { &hf_mip_utrqext_f, &hf_mip_utrqext_r, &hf_mip_utrqext_reserved2, NULL }; /* sub-type */ proto_tree_add_item(ext_tree, hf_mip_utrqext_stype, tvb, offset, 1, ENC_BIG_ENDIAN); /* reserved 1 */ proto_tree_add_item(ext_tree, hf_mip_utrqext_reserved1, tvb, offset + 1, 1, ENC_BIG_ENDIAN); /* flags */ proto_tree_add_bitmask(ext_tree, tvb, offset + 2, hf_mip_utrqext_flags, ett_mip_flags, flags, ENC_BIG_ENDIAN); /* encapsulation */ proto_tree_add_item(ext_tree, hf_mip_utrqext_encap_type, tvb, offset + 3, 1, ENC_BIG_ENDIAN); /* reserved 3 */ proto_tree_add_item(ext_tree, hf_mip_utrqext_reserved3, tvb, offset + 4, 2, ENC_BIG_ENDIAN); } break; case UDP_TUN_REP_EXT: /* RFC 3519 */ { static const int * flags[] = { &hf_mip_utrpext_f, &hf_mip_utrpext_reserved, NULL }; /* sub-type */ proto_tree_add_item(ext_tree, hf_mip_utrpext_stype, tvb, offset, 1, ENC_BIG_ENDIAN); /* code */ proto_tree_add_item(ext_tree, hf_mip_utrpext_code, tvb, offset + 1, 1, ENC_BIG_ENDIAN); /* flags */ proto_tree_add_bitmask(ext_tree, tvb, offset + 2, hf_mip_utrpext_flags, ett_mip_flags, flags, ENC_BIG_ENDIAN); /* keepalive interval */ proto_tree_add_item(ext_tree, hf_mip_utrpext_keepalive, tvb, offset + 4, 2, ENC_BIG_ENDIAN); } break; case PMIPv4_NON_SKIP_EXT: /* draft-leung-mip4-proxy-mode */ /* sub-type */ proto_tree_add_uint(ext_tree, hf_mip_pmipv4nonskipext_stype, tvb, offset, 1, ext_subtype); offset++; /* len */ proto_tree_add_uint(ext_tree, hf_mip_ext_len, tvb, offset, 2, ext_len); offset+=2; if(ext_subtype == 1){ /* Sub-type == 1 : PMIPv4 Per-Node Authentication Method */ proto_tree_add_item(ext_tree, hf_mip_pmipv4nonskipext_pernodeauthmethod, tvb, offset, 1, ENC_BIG_ENDIAN); } break; case PMIPv4_SKIP_EXT: /* draft-leung-mip4-proxy-mode */ /* sub-type */ ext_subtype = tvb_get_guint8(tvb, offset); pmipv4_tree = proto_tree_add_subtree_format(ext_tree, tvb, offset, ext_len, ett_mip_pmipv4_ext, NULL, "PMIPv4 Sub-Type: %s", val_to_str(ext_subtype, mip_pmipv4skipext_stypes, "Unknown Sub-Type %u")); proto_tree_add_uint(pmipv4_tree, hf_mip_pmipv4skipext_stype, tvb, offset, 1, ext_subtype); if (ext_subtype == PMIPv4_SKIPEXT_STYPE_INTERFACE_ID) { proto_tree_add_item(pmipv4_tree, hf_mip_pmipv4skipext_interfaceid, tvb, offset + 1, ext_len-1, ENC_NA); } else if (ext_subtype == PMIPv4_SKIPEXT_STYPE_DEVICE_ID) { proto_tree_add_item(pmipv4_tree, hf_mip_pmipv4skipext_deviceid_type, tvb, offset + 1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(pmipv4_tree, hf_mip_pmipv4skipext_deviceid_id, tvb, offset + 2, ext_len - 2, ENC_NA); } else if (ext_subtype == PMIPv4_SKIPEXT_STYPE_SUBSCRIBER_ID) { pmipv4skipext_subscriberid_type = tvb_get_guint8(tvb, offset + 1); proto_tree_add_uint(pmipv4_tree, hf_mip_pmipv4skipext_subscriberid_type, tvb, offset + 1, 1, pmipv4skipext_subscriberid_type); if (pmipv4skipext_subscriberid_type == 1) { proto_tree_add_item(pmipv4_tree, hf_mip_pmipv4skipext_subscriberid_id, tvb, offset + 2, ext_len - 2, ENC_NA); } } else if (ext_subtype == PMIPv4_SKIPEXT_STYPE_ACCESS_TECHNOLOGY) { proto_tree_add_item(pmipv4_tree, hf_mip_pmipv4skipext_accesstechnology_type, tvb, offset + 1, 1, ENC_BIG_ENDIAN); } break; case OLD_CVSE_EXT: /* RFC 3115 */ case CVSE_EXT: /* RFC 3115 */ /* * Very nasty . . breaks normal extensions, since the length is * in the wrong place :( */ proto_tree_add_item(ext_tree, hf_mip_cvse_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; proto_tree_add_uint(ext_tree, hf_mip_ext_len, tvb, offset, 2, ext_len); offset+=2; /* Vendor/Org ID */ /*Vendor ID & cvse type & cvse value are included in ext_len, so do not increment offset for them here.*/ cvse_local_offset = offset; proto_tree_add_item(ext_tree, hf_mip_cvse_vendor_org_id, tvb, cvse_local_offset, 4, ENC_BIG_ENDIAN); cvse_vendor_id = tvb_get_ntohl(tvb, cvse_local_offset); cvse_local_offset+=4; /*Vendor CVSE Type*/ if( cvse_vendor_id == VENDOR_VERIZON ){ /*Verizon CVSE type*/ proto_tree_add_item(ext_tree, hf_mip_cvse_verizon_cvse_type, tvb, cvse_local_offset, 2, ENC_BIG_ENDIAN); }else if( cvse_vendor_id == VENDOR_THE3GPP2 ){ /*THE3GPP2 CVSE type*/ proto_tree_add_item(ext_tree, hf_mip_cvse_3gpp2_cvse_type, tvb, cvse_local_offset, 2, ENC_BIG_ENDIAN); cvse_3gpp2_type = tvb_get_ntohs(tvb, cvse_local_offset); /* XXX: THE3GPP2 CVSE type is followed by a 2 byte length field ? - No ?*/ /* ... */ /* THE3GPP2 CVSE Value http://www.3gpp2.org/public_html/X/VSA-VSE.cfm X.S0011 * http://www.3gpp2.org/Public_html/specs/X.S0011-002-E_v1.0_091116.pdf Chapter 4.1.4 GRE CVSE */ if(cvse_3gpp2_type == GRE_KEY_EXT){ proto_tree_add_item(ext_tree, hf_mip_cvse_3gpp2_grekey, tvb, cvse_local_offset + 2, ext_len - 6, ENC_BIG_ENDIAN); } }else{ /*CVSE Type of Other vendor, just show raw numbers currently*/ proto_tree_add_item(ext_tree, hf_mip_cvse_vendor_cvse_type, tvb, cvse_local_offset, 2, ENC_BIG_ENDIAN); /* Vendor CVSE Type+Vendor/Org ID = 6 bytes*/ proto_tree_add_item(ext_tree, hf_mip_cvse_vendor_cvse_value, tvb, cvse_local_offset + 2, ext_len - 6, ENC_NA); } break; case OLD_NVSE_EXT: /* RFC 3115 */ case NVSE_EXT: /* RFC 3115 */ { guint32 nvse_vendor_org_id; tvbuff_t *next_tvb; proto_tree_add_item(ext_tree, hf_mip_nvse_reserved, tvb, offset, 2, ENC_BIG_ENDIAN); /* Vendor/Org ID */ /*Vendor ID & nvse type & nvse value are included in ext_len, so do not increment offset for them here.*/ nvse_local_offset = offset + hdrLen; nvse_vendor_org_id = tvb_get_ntohl(tvb, nvse_local_offset); proto_tree_add_item(ext_tree, hf_mip_nvse_vendor_org_id, tvb, nvse_local_offset, 4, ENC_BIG_ENDIAN); nvse_local_offset+=4; next_tvb = tvb_new_subset_length(tvb, nvse_local_offset, ext_len-6); if (!dissector_try_uint(mip_nvse_ext_dissector_table, nvse_vendor_org_id, next_tvb, pinfo, ext_tree)){ /*Vendor NVSE Type*/ proto_tree_add_item(ext_tree, hf_mip_nvse_vendor_nvse_type, tvb, nvse_local_offset, 2, ENC_BIG_ENDIAN); nvse_local_offset+=2; /* Vendor-NVSE-Value */ proto_tree_add_item(ext_tree, hf_mip_nvse_vendor_nvse_value, tvb, nvse_local_offset, ext_len - 8, ENC_NA); } } break; case MNE_EXT: /* RFC 5177 */ { guint8 sub_type; sub_type = tvb_get_guint8(tvb, offset); proto_tree_add_item(ext_tree, hf_mip_mne_sub_type, tvb, offset, 1, ENC_BIG_ENDIAN); mne_local_offset = offset+1; switch (sub_type) { case 0: proto_tree_add_item(ext_tree, hf_mip_mne_prefix_length, tvb, mne_local_offset, 1, ENC_BIG_ENDIAN); mne_local_offset++; break; case 1: case 2: proto_tree_add_item(ext_tree, hf_mip_mne_code, tvb, mne_local_offset, 1, ENC_BIG_ENDIAN); mne_local_offset++; proto_tree_add_item(ext_tree, hf_mip_mne_prefix_length, tvb, mne_local_offset, 1, ENC_BIG_ENDIAN); mne_local_offset++; proto_tree_add_item(ext_tree, hf_mip_mne_reserved, tvb, mne_local_offset, 1, ENC_BIG_ENDIAN); mne_local_offset++; break; default: proto_tree_add_expert_format(ext_tree, pinfo, &ei_mip_data_not_dissected, tvb, offset, -1, "Unable to decode (Unknown Sub-Type)"); return; } proto_tree_add_item(ext_tree, hf_mip_mne_prefix, tvb, mne_local_offset, 4, ENC_BIG_ENDIAN); } break; case MF_CHALLENGE_EXT: /* RFC 3012 */ /* The default dissector is good here. The challenge is all hex anyway. */ default: proto_tree_add_item(ext_tree, hf_mip_ext, tvb, offset, ext_len, ENC_NA); break; } /* ext type */ offset += ext_len; } /* while data remaining */ } /* dissect_mip_extensions */ /* Code to actually dissect the packets */ static int dissect_mip( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { /* Set up structures we will need to add the protocol subtree and manage it */ proto_item *ti; proto_tree *mip_tree=NULL; guint8 type; gint offset=0; tvbuff_t *next_tvb; /* Make entries in Protocol column and Info column on summary display */ col_set_str(pinfo->cinfo, COL_PROTOCOL, "MobileIP"); col_clear(pinfo->cinfo, COL_INFO); type = tvb_get_guint8(tvb, offset); switch (type) { case MIP_REGISTRATION_REQUEST: col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Request: HoA=%s HA=%s CoA=%s", tvb_ip_to_str(tvb, 4), tvb_ip_to_str(tvb, 8), tvb_ip_to_str(tvb, 12)); if (tree) { static const int * flags[] = { &hf_mip_s, &hf_mip_b, &hf_mip_d, &hf_mip_m, &hf_mip_g, &hf_mip_v, &hf_mip_t, &hf_mip_x, NULL }; ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, ENC_NA); mip_tree = proto_item_add_subtree(ti, ett_mip); /* type */ proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type); offset++; /* flags */ proto_tree_add_bitmask(mip_tree, tvb, offset, hf_mip_flags, ett_mip_flags, flags, ENC_BIG_ENDIAN); offset++; /* lifetime */ proto_tree_add_item(mip_tree, hf_mip_life, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* home address */ proto_tree_add_item(mip_tree, hf_mip_homeaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* home agent address */ proto_tree_add_item(mip_tree, hf_mip_haaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* Care of Address */ proto_tree_add_item(mip_tree, hf_mip_coa, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* Identifier - assumed to be an NTP time here */ proto_tree_add_item(mip_tree, hf_mip_ident, tvb, offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); offset += 8; } else { offset += 24; } break; case MIP_REGISTRATION_REPLY: col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Reply: HoA=%s HA=%s, Code=%u", tvb_ip_to_str(tvb, 4), tvb_ip_to_str(tvb, 8), tvb_get_guint8(tvb,1)); if (tree) { /* Add Subtree */ ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, ENC_NA); mip_tree = proto_item_add_subtree(ti, ett_mip); /* Type */ proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type); offset++; /* Reply Code */ proto_tree_add_item(mip_tree, hf_mip_code, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Registration Lifetime */ proto_tree_add_item(mip_tree, hf_mip_life, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* Home address */ proto_tree_add_item(mip_tree, hf_mip_homeaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* Home Agent Address */ proto_tree_add_item(mip_tree, hf_mip_haaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* Identifier - assumed to be an NTP time here */ proto_tree_add_item(mip_tree, hf_mip_ident, tvb, offset, 8, ENC_TIME_NTP|ENC_BIG_ENDIAN); offset += 8; } else { offset += 20; } break; case MIP_NATT_TUNNEL_DATA: col_add_fstr(pinfo->cinfo, COL_INFO, "Tunnel Data: Next Header=%u", tvb_get_guint8(tvb,1)); if (tree) { /* Add Subtree */ ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, ENC_NA); mip_tree = proto_item_add_subtree(ti, ett_mip); /* Type */ proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type); offset++; /* Next Header */ proto_tree_add_item(mip_tree, hf_mip_nattt_nexthdr, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* reserved */ proto_tree_add_item(mip_tree, hf_mip_nattt_reserved, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } else { offset += 4; } /* encapsulated payload */ next_tvb = tvb_new_subset_remaining(tvb, offset); call_dissector(ip_handle, next_tvb, pinfo, mip_tree); offset = tvb_reported_length(tvb); break; case MIP_REGISTRATION_REVOCATION: col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Revocation: HoA=%s HDA=%s FDA=%s", tvb_ip_to_str(tvb, 4), tvb_ip_to_str(tvb, 8), tvb_ip_to_str(tvb, 12)); if (tree) { static const int * mip_flags[] = { &hf_mip_rev_a, &hf_mip_rev_i, &hf_mip_rev_reserved2, NULL }; ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, ENC_NA); mip_tree = proto_item_add_subtree(ti, ett_mip); /* type */ proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type); offset++; /* reserved */ proto_tree_add_item(mip_tree, hf_mip_rev_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* flags */ proto_tree_add_bitmask(mip_tree, tvb, offset, hf_mip_flags2, ett_mip_flags, mip_flags, ENC_BIG_ENDIAN); offset += 2; /* home address */ proto_tree_add_item(mip_tree, hf_mip_homeaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* home domain address */ proto_tree_add_item(mip_tree, hf_mip_hda, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* foreign domain address */ proto_tree_add_item(mip_tree, hf_mip_fda, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* revocation identifier */ proto_tree_add_item(mip_tree, hf_mip_revid, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } else { offset += 20; } break; case MIP_REGISTRATION_REVOCATION_ACK: col_add_fstr(pinfo->cinfo, COL_INFO, "Reg Revocation Ack: HoA=%s", tvb_ip_to_str(tvb, 4)); if (tree) { static const int * mip_flags[] = { &hf_mip_ack_i, &hf_mip_ack_reserved2, NULL }; ti = proto_tree_add_item(tree, proto_mip, tvb, offset, -1, ENC_NA); mip_tree = proto_item_add_subtree(ti, ett_mip); /* type */ proto_tree_add_uint(mip_tree, hf_mip_type, tvb, offset, 1, type); offset++; /* reserved */ proto_tree_add_item(mip_tree, hf_mip_ack_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* flags */ proto_tree_add_bitmask(mip_tree, tvb, offset, hf_mip_flags2, ett_mip_flags, mip_flags, ENC_BIG_ENDIAN); offset += 2; /* home address */ proto_tree_add_item(mip_tree, hf_mip_homeaddr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; /* revocation identifier */ proto_tree_add_item(mip_tree, hf_mip_revid, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } else { offset += 12; } break; } /* End switch */ if (tvb_reported_length_remaining(tvb, offset) > 0) dissect_mip_extensions(tvb, offset, mip_tree, pinfo); return tvb_captured_length(tvb); } /* dissect_mip */ /* Register the protocol with Wireshark */ void proto_register_mip(void) { /* Setup list of header fields */ static hf_register_info hf[] = { { &hf_mip_type, { "Message Type", "mip.type", FT_UINT8, BASE_DEC, VALS(mip_types), 0, "Mobile IP Message type.", HFILL } }, { &hf_mip_flags, {"Flags", "mip.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL} }, { &hf_mip_s, {"Simultaneous Bindings", "mip.s", FT_BOOLEAN, 8, NULL, 128, "Simultaneous Bindings Allowed", HFILL } }, { &hf_mip_b, {"Broadcast Datagrams", "mip.b", FT_BOOLEAN, 8, NULL, 64, "Broadcast Datagrams requested", HFILL } }, { &hf_mip_d, { "Co-located Care-of Address", "mip.d", FT_BOOLEAN, 8, NULL, 32, "MN using Co-located Care-of address", HFILL } }, { &hf_mip_m, {"Minimal Encapsulation", "mip.m", FT_BOOLEAN, 8, NULL, 16, "MN wants Minimal encapsulation", HFILL } }, { &hf_mip_g, {"GRE", "mip.g", FT_BOOLEAN, 8, NULL, 8, "MN wants GRE encapsulation", HFILL } }, { &hf_mip_v, { "Van Jacobson", "mip.v", FT_BOOLEAN, 8, NULL, 4, NULL, HFILL } }, { &hf_mip_t, { "Reverse Tunneling", "mip.t", FT_BOOLEAN, 8, NULL, 2, "Reverse tunneling requested", HFILL } }, { &hf_mip_x, { "Reserved", "mip.x", FT_BOOLEAN, 8, NULL, 1, NULL, HFILL } }, { &hf_mip_code, { "Reply Code", "mip.code", FT_UINT8, BASE_DEC, VALS(mip_reply_codes), 0, "Mobile IP Reply code.", HFILL } }, { &hf_mip_life, { "Lifetime", "mip.life", FT_UINT16, BASE_DEC, NULL, 0, "Mobile IP Lifetime.", HFILL } }, { &hf_mip_homeaddr, { "Home Address", "mip.homeaddr", FT_IPv4, BASE_NONE, NULL, 0, "Mobile Node's home address.", HFILL } }, { &hf_mip_haaddr, { "Home Agent", "mip.haaddr", FT_IPv4, BASE_NONE, NULL, 0, "Home agent IP Address.", HFILL } }, { &hf_mip_coa, { "Care of Address", "mip.coa", FT_IPv4, BASE_NONE, NULL, 0, "Care of Address.", HFILL } }, { &hf_mip_ident, { "Identification", "mip.ident", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0, "MN Identification.", HFILL } }, { &hf_mip_ext_type, { "Extension Type", "mip.ext.type", FT_UINT8, BASE_DEC, VALS(mip_ext_types), 0, "Mobile IP Extension Type.", HFILL } }, { &hf_mip_gaext_stype, { "Gen Auth Ext SubType", "mip.ext.auth.subtype", FT_UINT8, BASE_DEC, VALS(mip_gaext_stypes), 0, "Mobile IP Auth Extension Sub Type.", HFILL } }, { &hf_mip_ext_len, { "Extension Length", "mip.ext.len", FT_UINT16, BASE_DEC, NULL, 0, "Mobile IP Extension Length.", HFILL } }, { &hf_mip_ext, { "Extension", "mip.extension", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_aext_spi, { "SPI", "mip.auth.spi", FT_UINT32, BASE_HEX, NULL, 0, "Authentication Header Security Parameter Index.", HFILL } }, { &hf_mip_aext_auth, { "Authenticator", "mip.auth.auth", FT_BYTES, BASE_NONE, NULL, 0, "Authenticator.", HFILL } }, { &hf_mip_next_nai, { "NAI", "mip.nai", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_rext_flags, {"Rev Ext Flags", "mip.ext.rev.flags", FT_UINT16, BASE_HEX, NULL, 0x0, "Revocation Support Extension Flags", HFILL} }, { &hf_mip_rext_i, { "'I' bit Support", "mip.ext.rev.i", FT_BOOLEAN, 16, NULL, 32768, "Agent supports Inform bit in Revocation", HFILL } }, { &hf_mip_rext_reserved, { "Reserved", "mip.ext.rev.reserved", FT_UINT16, BASE_HEX, NULL, 0x7fff, NULL, HFILL } }, { &hf_mip_rext_tstamp, { "Timestamp", "mip.ext.rev.tstamp", FT_UINT32, BASE_DEC, NULL, 0, "Revocation Timestamp of Sending Agent", HFILL } }, { &hf_mip_rev_reserved, { "Reserved", "mip.rev.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL} }, { &hf_mip_flags2, {"Flags", "mip.flags2", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL} }, { &hf_mip_rev_a, { "Home Agent", "mip.rev.a", FT_BOOLEAN, 16, NULL, 32768, "Revocation sent by Home Agent", HFILL } }, { &hf_mip_rev_i, { "Inform", "mip.rev.i", FT_BOOLEAN, 16, NULL, 16384, "Inform Mobile Node", HFILL } }, { &hf_mip_rev_reserved2, { "Reserved", "mip.rev.reserved2", FT_UINT16, BASE_HEX, NULL, 0x3fff, NULL, HFILL}}, { &hf_mip_hda, { "Home Domain Address", "mip.rev.hda", FT_IPv4, BASE_NONE, NULL, 0, "Revocation Home Domain IP Address", HFILL } }, { &hf_mip_fda, { "Foreign Domain Address", "mip.rev.fda", FT_IPv4, BASE_NONE, NULL, 0, "Revocation Foreign Domain IP Address", HFILL } }, { &hf_mip_revid, { "Revocation Identifier", "mip.revid", FT_UINT32, BASE_DEC, NULL, 0, "Revocation Identifier of Initiating Agent", HFILL } }, { &hf_mip_ack_reserved, { "Reserved", "mip.ack.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL} }, { &hf_mip_ack_i, { "Inform", "mip.ack.i", FT_BOOLEAN, 16, NULL, 32768, "Inform Mobile Node", HFILL } }, { &hf_mip_ack_reserved2, { "Reserved", "mip.ack.reserved2", FT_UINT16, BASE_HEX, NULL, 0x7fff, NULL, HFILL}}, { &hf_mip_dhaext_stype, { "DynHA Ext SubType", "mip.ext.dynha.subtype", FT_UINT8, BASE_DEC, VALS(mip_dhaext_stypes), 0, "Dynamic HA Extension Sub-type", HFILL } }, { &hf_mip_dhaext_addr, { "DynHA Home Agent", "mip.ext.dynha.ha", FT_IPv4, BASE_NONE, NULL, 0, "Dynamic Home Agent IP Address", HFILL } }, { &hf_mip_mstrext_stype, { "MsgStr Ext SubType", "mip.ext.msgstr.subtype", FT_UINT8, BASE_DEC, VALS(mip_mstrext_stypes), 0, "Message String Extension Sub-type", HFILL } }, { &hf_mip_mstrext_text, { "MsgStr Text", "mip.ext.msgstr.text", FT_STRING, BASE_NONE, NULL, 0, "Message String Extension Text", HFILL } }, { &hf_mip_nattt_nexthdr, { "NATTT NextHeader", "mip.nattt.nexthdr", FT_UINT8, BASE_DEC, VALS(mip_nattt_nexthdr), 0, "NAT Traversal Tunnel Next Header.", HFILL } }, { &hf_mip_nattt_reserved, { "Reserved", "mip.nattt.reserved", FT_UINT16, BASE_HEX, NULL , 0x0, NULL, HFILL } }, { &hf_mip_utrqext_stype, { "UDP TunReq Ext SubType", "mip.ext.utrq.subtype", FT_UINT8, BASE_DEC, VALS(mip_utrqext_stypes), 0, "UDP Tunnel Request Extension Sub-type", HFILL } }, { &hf_mip_utrqext_reserved1, { "Reserved 1", "mip.ext.utrq.reserved1", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_mip_utrqext_flags, { "UDP TunReq Ext Flags", "mip.ext.utrq.flags", FT_UINT8, BASE_HEX, NULL, 0x0, "UDP Tunnel Request Extension Flags", HFILL } }, { &hf_mip_utrqext_f, { "Req Forced", "mip.ext.utrq.f", FT_BOOLEAN, 8, NULL, 128, "MN wants to Force UDP Tunneling", HFILL } }, { &hf_mip_utrqext_r, { "FA Registration Required", "mip.ext.utrq.r", FT_BOOLEAN, 8, NULL, 64, "Registration through FA Required", HFILL } }, { &hf_mip_utrqext_reserved2, { "Reserved 2", "mip.ext.utrq.reserved2", FT_UINT8, BASE_HEX, NULL, 0x3f, NULL, HFILL } }, { &hf_mip_utrqext_encap_type, { "UDP Encap Type", "mip.ext.utrq.encaptype", FT_UINT8, BASE_DEC, VALS(mip_utrqext_encap_types), 0, "UDP Encapsulation Type", HFILL } }, { &hf_mip_utrqext_reserved3, { "Reserved 3", "mip.ext.utrq.reserved3", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_mip_utrpext_stype, { "UDP TunRep Ext SubType", "mip.ext.utrp.subtype", FT_UINT8, BASE_DEC, VALS(mip_utrpext_stypes), 0, "UDP Tunnel Reply Extension Sub-type", HFILL } }, { &hf_mip_utrpext_code, { "UDP TunRep Code", "mip.ext.utrp.code", FT_UINT8, BASE_DEC, VALS(mip_utrpext_codes), 0, "UDP Tunnel Reply Code", HFILL } }, { &hf_mip_utrpext_flags, { "UDP TunRep Ext Flags", "mip.ext.utrp.flags", FT_UINT16, BASE_HEX, NULL, 0x0, "UDP Tunnel Request Extension Flags", HFILL } }, { &hf_mip_utrpext_f, { "Rep Forced", "mip.ext.utrp.f", FT_BOOLEAN, 16, NULL, 32768, "HA wants to Force UDP Tunneling", HFILL } }, { &hf_mip_utrpext_reserved, { "Reserved", "mip.ext.utrp.reserved", FT_UINT16, BASE_HEX, NULL, 0x7fff, NULL, HFILL } }, { &hf_mip_utrpext_keepalive, { "Keepalive Interval", "mip.ext.utrp.keepalive", FT_UINT16, BASE_DEC, NULL, 0, "NAT Keepalive Interval", HFILL } }, { &hf_mip_pmipv4nonskipext_stype, { "Sub-type", "mip.ext.pmipv4nonskipext.subtype", FT_UINT8, BASE_DEC, VALS(mip_pmipv4nonskipext_stypes), 0, "PMIPv4 Skippable Extension Sub-type", HFILL } }, { &hf_mip_pmipv4nonskipext_pernodeauthmethod, { "Per-Node Authentication Method", "mip.ext.pmipv4nonskipext.pernodeauthmethod", FT_UINT8, BASE_DEC, VALS(mip_pmipv4nonskipext_pernodeauthmethod_types), 0, NULL, HFILL } }, { &hf_mip_pmipv4skipext_stype, { "Sub-type", "mip.ext.pmipv4skipext.subtype", FT_UINT8, BASE_DEC, VALS(mip_pmipv4skipext_stypes), 0, "PMIPv4 Non-skippable Extension Sub-type", HFILL } }, { &hf_mip_pmipv4skipext_interfaceid, { "Interface ID", "mip.ext.pmipv4skipext.interfaceid", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_pmipv4skipext_deviceid_type, { "ID-Type", "mip.ext.pmipv4skipext.deviceid_type", FT_UINT8, BASE_DEC, VALS(mip_pmipv4skipext_deviceid_types), 0, "Device ID-Type", HFILL } }, { &hf_mip_pmipv4skipext_deviceid_id, { "Identifier", "mip.ext.pmipv4skipext.deviceid_id", FT_BYTES, BASE_NONE, NULL, 0, "Device ID Identifier", HFILL } }, { &hf_mip_pmipv4skipext_subscriberid_type, { "ID-Type", "mip.ext.pmipv4skipext.subscriberid_type", FT_UINT8, BASE_DEC, VALS(mip_pmipv4skipext_subscriberid_types), 0, "Subscriber ID-Type", HFILL } }, { &hf_mip_pmipv4skipext_subscriberid_id, { "Identifier", "mip.ext.pmipv4skipext.subscriberid_id", FT_BYTES, BASE_NONE, NULL, 0, "Subscriber ID Identifier", HFILL } }, { &hf_mip_pmipv4skipext_accesstechnology_type, { "Access Technology Type", "mip.ext.pmipv4skipext.accesstechnology_type", FT_UINT8, BASE_DEC, VALS(mip_pmipv4skipext_accesstechnology_types), 0, NULL, HFILL } }, { &hf_mip_cvse_reserved, { "CVSE Reserved", "mip.ext.cvse.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_mip_cvse_vendor_org_id, { "CVSE Vendor/org ID", "mip.ext.cvse.vendor_id", FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0, NULL, HFILL } }, { &hf_mip_cvse_verizon_cvse_type , { "Verizon CVSE Type", "mip.ext.cvse.verizon_type", FT_UINT16, BASE_DEC, VALS(mip_cvse_verizon_cvse_types), 0, NULL, HFILL } }, { &hf_mip_cvse_3gpp2_cvse_type , { "3GPP2 CVSE Type","mip.ext.cvse.3gpp2_type", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_cvse_3gpp2_grekey, { "GRE Key","mip.ext.cvse.3gpp2_grekey", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_cvse_vendor_cvse_type, { "Vendor CVSE Type", "mip.ext.cvse.vendor_type", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_mip_cvse_vendor_cvse_value, { "Vendor CVSE Value", "mip.ext.cvse.vendor_value", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_reserved, { "Reserved", "mip.ext.nvse.reserved", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_mip_nvse_vendor_org_id, { "Vendor ID", "mip.ext.nvse.vendor_id", FT_UINT32, BASE_ENTERPRISES, STRINGS_ENTERPRISES, 0, NULL, HFILL } }, { &hf_mip_nvse_vendor_nvse_type , { "Vendor Type", "mip.ext.nvse.vendor_type", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_mip_nvse_vendor_nvse_value , { "Vendor Value", "mip.ext.nvse.vendor_value", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type , { "Type", "mip.ext.nvse.3gpp2.type", FT_UINT16, BASE_DEC, VALS(mip_nvse_3gpp2_type_vals), 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type16_value , { "value", "mip.ext.nvse.3gpp2.type16.value", FT_UINT16, BASE_DEC, VALS(mip_nvse_3gpp2_type17_vals), 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_entity, { "Entity-Type", "mip.ext.nvse.3gpp2.type17.entity", FT_UINT8, BASE_DEC, VALS(mip_nvse_3gpp2_type17_entity_vals), 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_subtype1, { "Sub-Type1", "mip.ext.nvse.3gpp2.type17.subtype1", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_length, { "Length", "mip.ext.nvse.3gpp2.type17.length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_subtype2, { "Sub-Type2", "mip.ext.nvse.3gpp2.type17.subtype2", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_prim_dns, { "Primary DNS", "mip.ext.nvse.3gpp2.type17.prim_dns", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_nvse_3gpp2_type17_sec_dns, { "Secondary DNS", "mip.ext.nvse.3gpp2.type17.sec_dns", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_mip_mne_sub_type, { "Sub-Type", "mip.ext.mne.subtype", FT_UINT8, BASE_DEC, VALS(mip_mne_stypes), 0, NULL, HFILL } }, { &hf_mip_mne_code, { "Code", "mip.ext.mne.code", FT_UINT8, BASE_DEC, VALS(mip_mne_codes), 0, NULL, HFILL } }, { &hf_mip_mne_prefix_length, { "Prefix Length", "mip.ext.mne.prefix_length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_mip_mne_reserved, { "Reserved", "mip.ext.mne.reserved", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_mip_mne_prefix, { "Prefix", "mip.ext.mne.prefix", FT_IPv4, BASE_NETMASK, NULL, 0, NULL, HFILL } } }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_mip, &ett_mip_flags, &ett_mip_ext, &ett_mip_exts, &ett_mip_pmipv4_ext, }; static ei_register_info ei[] = { { &ei_mip_data_not_dissected, { "mip.data_not_dissected", PI_UNDECODED, PI_WARN, "Data not dissected yet", EXPFILL }}, }; expert_module_t* expert_mip; /* Register the protocol name and description */ proto_mip = proto_register_protocol("Mobile IP", "Mobile IP", "mip"); /* Register the dissector by name */ mip_handle = register_dissector("mip", dissect_mip, proto_mip); /* Required function calls to register the header fields and subtrees used */ proto_register_field_array(proto_mip, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_mip = expert_register_protocol(proto_mip); expert_register_field_array(expert_mip, ei, array_length(ei)); mip_nvse_ext_dissector_table = register_dissector_table("mip.nvse_ext", "MIP Normal Vendor/Organization Specific Extension", proto_mip, FT_UINT32, BASE_DEC); } void proto_reg_handoff_mip(void) { ip_handle = find_dissector_add_dependency("ip", proto_mip); dissector_add_uint_with_preference("udp.port", UDP_PORT_MIP, mip_handle); /* Register as dissector for 3GPP2 NVSE */ dissector_add_uint("mip.nvse_ext", VENDOR_THE3GPP2, create_dissector_handle(dissect_mip_priv_ext_3gpp2, proto_mip)); } /* * Editor modelines * * Local Variables: * c-basic-offset: 2 * tab-width: 8 * indent-tabs-mode: nil * End: * * ex: set shiftwidth=2 tabstop=8 expandtab: * :indentSize=2:tabSize=8:noTabs=true: */