/* * Copyright (C) 2000 Alfredo Andres Omella. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. The names of the authors may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* \summary: Radius protocol printer */ /* * Radius printer routines as specified on: * * RFC 2865: * "Remote Authentication Dial In User Service (RADIUS)" * * RFC 2866: * "RADIUS Accounting" * * RFC 2867: * "RADIUS Accounting Modifications for Tunnel Protocol Support" * * RFC 2868: * "RADIUS Attributes for Tunnel Protocol Support" * * RFC 2869: * "RADIUS Extensions" * * RFC 3162: * "RADIUS and IPv6" * * RFC 3580: * "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)" * "Usage Guidelines" * * RFC 4072: * "Diameter Extensible Authentication Protocol (EAP) Application" * * RFC 4675: * "RADIUS Attributes for Virtual LAN and Priority Support" * * RFC 4818: * "RADIUS Delegated-IPv6-Prefix Attribute" * * RFC 4849: * "RADIUS Filter Rule Attribute" * * RFC 5090: * "RADIUS Extension for Digest Authentication" * * RFC 5176: * "Dynamic Authorization Extensions to RADIUS" * * RFC 5447: * "Diameter Mobile IPv6" * * RFC 5580: * "Carrying Location Objects in RADIUS and Diameter" * * RFC 6572: * "RADIUS Support for Proxy Mobile IPv6" * * RFC 7155: * "Diameter Network Access Server Application" * * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15 * * TODO: Among other things to print ok MacIntosh and Vendor values */ #include #include "netdissect-stdinc.h" #include #include "netdissect-ctype.h" #include "netdissect.h" #include "addrtoname.h" #include "extract.h" #include "oui.h" #include "ntp.h" #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) ) #define PRINT_HEX(bytes_len, ptr_data) \ while(bytes_len) \ { \ ND_PRINT("%02X", GET_U_1(ptr_data)); \ ptr_data++; \ bytes_len--; \ } /* Radius packet codes */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-27 */ #define RADCMD_ACCESS_REQ 1 /* Access-Request */ #define RADCMD_ACCESS_ACC 2 /* Access-Accept */ #define RADCMD_ACCESS_REJ 3 /* Access-Reject */ #define RADCMD_ACCOUNT_REQ 4 /* Accounting-Request */ #define RADCMD_ACCOUNT_RES 5 /* Accounting-Response */ #define RADCMD_ACCESS_CHA 11 /* Access-Challenge */ #define RADCMD_STATUS_SER 12 /* Status-Server */ #define RADCMD_STATUS_CLI 13 /* Status-Client */ #define RADCMD_DISCON_REQ 40 /* Disconnect-Request */ #define RADCMD_DISCON_ACK 41 /* Disconnect-ACK */ #define RADCMD_DISCON_NAK 42 /* Disconnect-NAK */ #define RADCMD_COA_REQ 43 /* CoA-Request */ #define RADCMD_COA_ACK 44 /* CoA-ACK */ #define RADCMD_COA_NAK 45 /* CoA-NAK */ #define RADCMD_RESERVED 255 /* Reserved */ static const struct tok radius_command_values[] = { { RADCMD_ACCESS_REQ, "Access-Request" }, { RADCMD_ACCESS_ACC, "Access-Accept" }, { RADCMD_ACCESS_REJ, "Access-Reject" }, { RADCMD_ACCOUNT_REQ, "Accounting-Request" }, { RADCMD_ACCOUNT_RES, "Accounting-Response" }, { RADCMD_ACCESS_CHA, "Access-Challenge" }, { RADCMD_STATUS_SER, "Status-Server" }, { RADCMD_STATUS_CLI, "Status-Client" }, { RADCMD_DISCON_REQ, "Disconnect-Request" }, { RADCMD_DISCON_ACK, "Disconnect-ACK" }, { RADCMD_DISCON_NAK, "Disconnect-NAK" }, { RADCMD_COA_REQ, "CoA-Request" }, { RADCMD_COA_ACK, "CoA-ACK" }, { RADCMD_COA_NAK, "CoA-NAK" }, { RADCMD_RESERVED, "Reserved" }, { 0, NULL} }; /********************************/ /* Begin Radius Attribute types */ /********************************/ #define SERV_TYPE 6 #define FRM_IPADDR 8 #define LOG_IPHOST 14 #define LOG_SERVICE 15 #define FRM_IPX 23 #define SESSION_TIMEOUT 27 #define IDLE_TIMEOUT 28 #define FRM_ATALK_LINK 37 #define FRM_ATALK_NETWORK 38 #define ACCT_DELAY 41 #define ACCT_SESSION_TIME 46 #define EGRESS_VLAN_ID 56 #define EGRESS_VLAN_NAME 58 #define TUNNEL_TYPE 64 #define TUNNEL_MEDIUM 65 #define TUNNEL_CLIENT_END 66 #define TUNNEL_SERVER_END 67 #define TUNNEL_PASS 69 #define ARAP_PASS 70 #define ARAP_FEATURES 71 #define EAP_MESSAGE 79 #define TUNNEL_PRIV_GROUP 81 #define TUNNEL_ASSIGN_ID 82 #define TUNNEL_PREFERENCE 83 #define ARAP_CHALLENGE_RESP 84 #define ACCT_INT_INTERVAL 85 #define TUNNEL_CLIENT_AUTH 90 #define TUNNEL_SERVER_AUTH 91 #define ERROR_CAUSE 101 /********************************/ /* End Radius Attribute types */ /********************************/ #define RFC4675_TAGGED 0x31 #define RFC4675_UNTAGGED 0x32 static const struct tok rfc4675_tagged[] = { { RFC4675_TAGGED, "Tagged" }, { RFC4675_UNTAGGED, "Untagged" }, { 0, NULL} }; static void print_attr_string(netdissect_options *, const u_char *, u_int, u_short ); static void print_attr_num(netdissect_options *, const u_char *, u_int, u_short ); static void print_vendor_attr(netdissect_options *, const u_char *, u_int, u_short ); static void print_attr_address(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_address6(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_netmask6(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_mip6_home_link_prefix(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_operator_name(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_location_information(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_location_data(netdissect_options *, const u_char *, u_int, u_short); static void print_basic_location_policy_rules(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_time(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_vector64(netdissect_options *, const u_char *, u_int, u_short); static void print_attr_strange(netdissect_options *, const u_char *, u_int, u_short); struct radius_hdr { nd_uint8_t code; /* Radius packet code */ nd_uint8_t id; /* Radius packet id */ nd_uint16_t len; /* Radius total length */ nd_byte auth[16]; /* Authenticator */ }; #define MIN_RADIUS_LEN 20 struct radius_attr { nd_uint8_t type; /* Attribute type */ nd_uint8_t len; /* Attribute length */ }; /* Service-Type Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-4 */ static const char *serv_type[]={ NULL, "Login", "Framed", "Callback Login", "Callback Framed", "Outbound", "Administrative", "NAS Prompt", "Authenticate Only", "Callback NAS Prompt", /* ^ [0, 9] ^ */ "Call Check", "Callback Administrative", "Voice", "Fax", "Modem Relay", "IAPP-Register", "IAPP-AP-Check", "Authorize Only", "Framed-Management", "Additional-Authorization", /* ^ [10, 19] ^ */ }; /* Framed-Protocol Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-5 */ static const char *frm_proto[]={ NULL, "PPP", "SLIP", "ARAP", "Gandalf proprietary", "Xylogics IPX/SLIP", "X.75 Synchronous", "GPRS PDP Context", }; /* Framed-Routing Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-6 */ static const char *frm_routing[]={ "None", "Send", "Listen", "Send&Listen", }; /* Framed-Compression Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-7 */ static const char *frm_comp[]={ "None", "VJ TCP/IP", "IPX", "Stac-LZS", }; /* Login-Service Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-8 */ static const char *login_serv[]={ "Telnet", "Rlogin", "TCP Clear", "PortMaster(proprietary)", "LAT", "X.25-PAD", "X.25-T3POS", "Unassigned", "TCP Clear Quiet", }; /* Termination-Action Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-9 */ static const char *term_action[]={ "Default", "RADIUS-Request", }; /* Ingress-Filters Attribute standard values */ static const char *ingress_filters[]={ NULL, "Enabled", "Disabled", }; /* NAS-Port-Type Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-13 */ static const char *nas_port_type[]={ "Async", "Sync", "ISDN Sync", "ISDN Async V.120", "ISDN Async V.110", "Virtual", "PIAFS", "HDLC Clear Channel", "X.25", "X.75", /* ^ [0, 9] ^ */ "G.3 Fax", "SDSL", "ADSL-CAP", "ADSL-DMT", "ISDN-DSL", "Ethernet", "xDSL", "Cable", "Wireless - Other", "Wireless - IEEE 802.11", /* ^ [10, 19] ^ */ "Token-Ring", "FDDI", "Wireless - CDMA200", "Wireless - UMTS", "Wireless - 1X-EV", "IAPP", "FTTP", "Wireless - IEEE 802.16", "Wireless - IEEE 802.20", "Wireless - IEEE 802.22", /* ^ [20, 29] ^ */ "PPPoA", "PPPoEoA", "PPPoEoE", "PPPoEoVLAN", "PPPoEoQinQ", "xPON", "Wireless - XGP", "WiMAX Pre-Release 8 IWK Function", "WIMAX-WIFI-IWK", "WIMAX-SFF", /* ^ [30, 39] ^ */ "WIMAX-HA-LMA", "WIMAX-DHCP", "WIMAX-LBS", "WIMAX-WVS", }; /* Acct-Status-Type Accounting Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-10 */ static const char *acct_status[]={ NULL, "Start", "Stop", "Interim-Update", "Unassigned", "Unassigned", "Unassigned", "Accounting-On", "Accounting-Off", "Tunnel-Start", /* ^ [0, 9] ^ */ "Tunnel-Stop", "Tunnel-Reject", "Tunnel-Link-Start", "Tunnel-Link-Stop", "Tunnel-Link-Reject", "Failed", }; /* Acct-Authentic Accounting Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-11 */ static const char *acct_auth[]={ NULL, "RADIUS", "Local", "Remote", "Diameter", }; /* Acct-Terminate-Cause Accounting Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-12 */ static const char *acct_term[]={ NULL, "User Request", "Lost Carrier", "Lost Service", "Idle Timeout", "Session Timeout", "Admin Reset", "Admin Reboot", "Port Error", "NAS Error", /* ^ [0, 9] ^ */ "NAS Request", "NAS Reboot", "Port Unneeded", "Port Preempted", "Port Suspended", "Service Unavailable", "Callback", "User Error", "Host Request", "Supplicant Restart", /* ^ [10, 19] ^ */ "Reauthentication Failure", "Port Reinitialized", "Port Administratively Disabled", "Lost Power", }; /* Tunnel-Type Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-14 */ static const char *tunnel_type[]={ NULL, "PPTP", "L2F", "L2TP", "ATMP", "VTP", "AH", "IP-IP", "MIN-IP-IP", "ESP", /* ^ [0, 9] ^ */ "GRE", "DVS", "IP-in-IP Tunneling", "VLAN", }; /* Tunnel-Medium-Type Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-15 */ static const char *tunnel_medium[]={ NULL, "IPv4", "IPv6", "NSAP", "HDLC", "BBN 1822", "802", "E.163", "E.164", "F.69", /* ^ [0, 9] ^ */ "X.121", "IPX", "Appletalk", "Decnet IV", "Banyan Vines", "E.164 with NSAP subaddress", }; /* ARAP-Zone-Access Attribute standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-16 */ static const char *arap_zone[]={ NULL, "Only access to dfl zone", "Use zone filter inc.", "Not used", "Use zone filter exc.", }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-17 */ static const char *prompt[]={ "No Echo", "Echo", }; /* Error-Cause standard values */ /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-18 */ #define ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED 201 #define ERROR_CAUSE_INVALID_EAP_PACKET 202 #define ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE 401 #define ERROR_CAUSE_MISSING_ATTRIBUTE 402 #define ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH 403 #define ERROR_CAUSE_INVALID_REQUEST 404 #define ERROR_CAUSE_UNSUPPORTED_SERVICE 405 #define ERROR_CAUSE_UNSUPPORTED_EXTENSION 406 #define ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE 407 #define ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED 501 #define ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE 502 #define ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND 503 #define ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE 504 #define ERROR_CAUSE_PROXY_PROCESSING_ERROR 505 #define ERROR_CAUSE_RESOURCES_UNAVAILABLE 506 #define ERROR_CAUSE_REQUEST_INITIATED 507 #define ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED 508 #define ERROR_CAUSE_LOCATION_INFO_REQUIRED 509 static const struct tok errorcausetype[] = { { ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED, "Residual Session Context Removed" }, { ERROR_CAUSE_INVALID_EAP_PACKET, "Invalid EAP Packet (Ignored)" }, { ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE, "Unsupported Attribute" }, { ERROR_CAUSE_MISSING_ATTRIBUTE, "Missing Attribute" }, { ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH, "NAS Identification Mismatch" }, { ERROR_CAUSE_INVALID_REQUEST, "Invalid Request" }, { ERROR_CAUSE_UNSUPPORTED_SERVICE, "Unsupported Service" }, { ERROR_CAUSE_UNSUPPORTED_EXTENSION, "Unsupported Extension" }, { ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE, "Invalid Attribute Value" }, { ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED, "Administratively Prohibited" }, { ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE, "Request Not Routable (Proxy)" }, { ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND, "Session Context Not Found" }, { ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE, "Session Context Not Removable" }, { ERROR_CAUSE_PROXY_PROCESSING_ERROR, "Other Proxy Processing Error" }, { ERROR_CAUSE_RESOURCES_UNAVAILABLE, "Resources Unavailable" }, { ERROR_CAUSE_REQUEST_INITIATED, "Request Initiated" }, { ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED, "Multiple Session Selection Unsupported" }, { ERROR_CAUSE_LOCATION_INFO_REQUIRED, "Location Info Required" }, { 0, NULL } }; /* MIP6-Feature-Vector standard values */ /* https://www.iana.org/assignments/aaa-parameters/aaa-parameters.xhtml */ #define MIP6_INTEGRATED 0x0000000000000001 #define LOCAL_HOME_AGENT_ASSIGNMENT 0x0000000000000002 #define PMIP6_SUPPORTED 0x0000010000000000 #define IP4_HOA_SUPPORTED 0x0000020000000000 #define LOCAL_MAG_ROUTING_SUPPORTED 0x0000040000000000 #define ASSIGN_LOCAL_IP 0x0000080000000000 #define MIP4_SUPPORTED 0x0000100000000000 #define OPTIMIZED_IDLE_MODE_MOBILITY 0x0000200000000000 #define GTPv2_SUPPORTED 0x0000400000000000 #define IP4_TRANSPORT_SUPPORTED 0x0000800000000000 #define IP4_HOA_ONLY_SUPPORTED 0x0001000000000000 #define INTER_MAG_ROUTING_SUPPORTED 0x0002000000000000 static const struct mip6_feature_vector { uint64_t v; const char *s; } mip6_feature_vector[] = { { MIP6_INTEGRATED, "MIP6_INTEGRATED" }, { LOCAL_HOME_AGENT_ASSIGNMENT, "LOCAL_HOME_AGENT_ASSIGNMENT" }, { PMIP6_SUPPORTED, "PMIP6_SUPPORTED" }, { IP4_HOA_SUPPORTED, "IP4_HOA_SUPPORTED" }, { LOCAL_MAG_ROUTING_SUPPORTED, "LOCAL_MAG_ROUTING_SUPPORTED" }, { ASSIGN_LOCAL_IP, "ASSIGN_LOCAL_IP" }, { MIP4_SUPPORTED, "MIP4_SUPPORTED" }, { OPTIMIZED_IDLE_MODE_MOBILITY, "OPTIMIZED_IDLE_MODE_MOBILITY" }, { GTPv2_SUPPORTED, "GTPv2_SUPPORTED" }, { IP4_TRANSPORT_SUPPORTED, "IP4_TRANSPORT_SUPPORTED" }, { IP4_HOA_ONLY_SUPPORTED, "IP4_HOA_ONLY_SUPPORTED" }, { INTER_MAG_ROUTING_SUPPORTED, "INTER_MAG_ROUTING_SUPPORTED" }, }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-19 */ #define OPERATOR_NAME_TADIG 0x30 #define OPERATOR_NAME_REALM 0x31 #define OPERATOR_NAME_E212 0x32 #define OPERATOR_NAME_ICC 0x33 static const struct tok operator_name_vector[] = { { OPERATOR_NAME_TADIG, "TADIG" }, { OPERATOR_NAME_REALM, "REALM" }, { OPERATOR_NAME_E212, "E212" }, { OPERATOR_NAME_ICC, "ICC" }, { 0, NULL } }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-20 */ #define LOCATION_INFORMATION_CODE_CIVIC 0 #define LOCATION_INFORMATION_CODE_GEOSPATIAL 1 static const struct tok location_information_code_vector[] = { { LOCATION_INFORMATION_CODE_CIVIC , "Civic" }, { LOCATION_INFORMATION_CODE_GEOSPATIAL, "Geospatial" }, { 0, NULL } }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-21 */ #define LOCATION_INFORMATION_ENTITY_USER 0 #define LOCATION_INFORMATION_ENTITY_RADIUS 1 static const struct tok location_information_entity_vector[] = { { LOCATION_INFORMATION_ENTITY_USER, "User" }, { LOCATION_INFORMATION_ENTITY_RADIUS, "RADIUS" }, { 0, NULL } }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-22 */ static const struct tok blpr_bm[] = { { 0x0001, "MBZ-15" }, { 0x0002, "MBZ-14" }, { 0x0004, "MBZ-13" }, { 0x0008, "MBZ-12" }, { 0x0010, "MBZ-11" }, { 0x0020, "MBZ-10" }, { 0x0040, "MBZ-9" }, { 0x0080, "MBZ-8" }, { 0x0100, "MBZ-7" }, { 0x0200, "MBZ-6" }, { 0x0400, "MBZ-5" }, { 0x0800, "MBZ-4" }, { 0x1000, "MBZ-3" }, { 0x2000, "MBZ-2" }, { 0x4000, "MBZ-1" }, { 0x8000, "Retransmission Allowed" }, { 0, NULL } }; /* https://www.iana.org/assignments/radius-types/radius-types.xhtml#radius-types-2 */ static const struct attrtype { const char *name; /* Attribute name */ const char **subtypes; /* Standard Values (if any) */ u_char siz_subtypes; /* Size of total standard values */ u_char first_subtype; /* First standard value is 0 or 1 */ void (*print_func)(netdissect_options *, const u_char *, u_int, u_short); } attr_type[]= { { NULL, NULL, 0, 0, NULL }, { "User-Name", NULL, 0, 0, print_attr_string }, { "User-Password", NULL, 0, 0, NULL }, { "CHAP-Password", NULL, 0, 0, NULL }, { "NAS-IP-Address", NULL, 0, 0, print_attr_address }, { "NAS-Port", NULL, 0, 0, print_attr_num }, { "Service-Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num }, { "Framed-Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num }, { "Framed-IP-Address", NULL, 0, 0, print_attr_address }, { "Framed-IP-Netmask", NULL, 0, 0, print_attr_address }, /* ^ [0, 9] ^ */ { "Framed-Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num }, { "Filter-Id", NULL, 0, 0, print_attr_string }, { "Framed-MTU", NULL, 0, 0, print_attr_num }, { "Framed-Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num }, { "Login-IP-Host", NULL, 0, 0, print_attr_address }, { "Login-Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num }, { "Login-TCP-Port", NULL, 0, 0, print_attr_num }, { "Unassigned", NULL, 0, 0, NULL }, /*17*/ { "Reply-Message", NULL, 0, 0, print_attr_string }, { "Callback-Number", NULL, 0, 0, print_attr_string }, /* ^ [10, 19] ^ */ { "Callback-Id", NULL, 0, 0, print_attr_string }, { "Unassigned", NULL, 0, 0, NULL }, /*21*/ { "Framed-Route", NULL, 0, 0, print_attr_string }, { "Framed-IPX-Network", NULL, 0, 0, print_attr_num }, { "State", NULL, 0, 0, print_attr_string }, { "Class", NULL, 0, 0, print_attr_string }, { "Vendor-Specific", NULL, 0, 0, print_vendor_attr }, { "Session-Timeout", NULL, 0, 0, print_attr_num }, { "Idle-Timeout", NULL, 0, 0, print_attr_num }, { "Termination-Action", term_action, TAM_SIZE(term_action), 0, print_attr_num }, /* ^ [20, 29] ^ */ { "Called-Station-Id", NULL, 0, 0, print_attr_string }, { "Calling-Station-Id", NULL, 0, 0, print_attr_string }, { "NAS-Identifier", NULL, 0, 0, print_attr_string }, { "Proxy-State", NULL, 0, 0, print_attr_string }, { "Login-LAT-Service", NULL, 0, 0, print_attr_string }, { "Login-LAT-Node", NULL, 0, 0, print_attr_string }, { "Login-LAT-Group", NULL, 0, 0, print_attr_string }, { "Framed-AppleTalk-Link", NULL, 0, 0, print_attr_num }, { "Framed-AppleTalk-Network", NULL, 0, 0, print_attr_num }, { "Framed-AppleTalk-Zone", NULL, 0, 0, print_attr_string }, /* ^ [30, 39] ^ */ { "Acct-Status-Type", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num }, { "Acct-Delay-Time", NULL, 0, 0, print_attr_num }, { "Acct-Input-Octets", NULL, 0, 0, print_attr_num }, { "Acct-Output-Octets", NULL, 0, 0, print_attr_num }, { "Acct-Session-Id", NULL, 0, 0, print_attr_string }, { "Acct-Authentic", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num }, { "Acct-Session-Time", NULL, 0, 0, print_attr_num }, { "Acct-Input-Packets", NULL, 0, 0, print_attr_num }, { "Acct-Output-Packets", NULL, 0, 0, print_attr_num }, { "Acct-Terminate-Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num }, /* ^ [40, 49] ^ */ { "Acct-Multi-Session-Id", NULL, 0, 0, print_attr_string }, { "Acct-Link-Count", NULL, 0, 0, print_attr_num }, { "Acct-Input-Gigawords", NULL, 0, 0, print_attr_num }, { "Acct-Output-Gigawords", NULL, 0, 0, print_attr_num }, { "Unassigned", NULL, 0, 0, NULL }, /*54*/ { "Event-Timestamp", NULL, 0, 0, print_attr_time }, { "Egress-VLANID", NULL, 0, 0, print_attr_num }, { "Ingress-Filters", ingress_filters, TAM_SIZE(ingress_filters)-1, 1, print_attr_num }, { "Egress-VLAN-Name", NULL, 0, 0, print_attr_string }, { "User-Priority-Table", NULL, 0, 0, NULL }, /* ^ [50, 59] ^ */ { "CHAP-Challenge", NULL, 0, 0, print_attr_string }, { "NAS-Port-Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num }, { "Port-Limit", NULL, 0, 0, print_attr_num }, { "Login-LAT-Port", NULL, 0, 0, print_attr_string }, /*63*/ { "Tunnel-Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num }, { "Tunnel-Medium-Type", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num }, { "Tunnel-Client-Endpoint", NULL, 0, 0, print_attr_string }, { "Tunnel-Server-Endpoint", NULL, 0, 0, print_attr_string }, { "Acct-Tunnel-Connection", NULL, 0, 0, print_attr_string }, { "Tunnel-Password", NULL, 0, 0, print_attr_string }, /* ^ [60, 69] ^ */ { "ARAP-Password", NULL, 0, 0, print_attr_strange }, { "ARAP-Features", NULL, 0, 0, print_attr_strange }, { "ARAP-Zone-Access", arap_zone, TAM_SIZE(arap_zone)-1, 1, print_attr_num }, /*72*/ { "ARAP-Security", NULL, 0, 0, print_attr_string }, { "ARAP-Security-Data", NULL, 0, 0, print_attr_string }, { "Password-Retry", NULL, 0, 0, print_attr_num }, { "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num }, { "Connect-Info", NULL, 0, 0, print_attr_string }, { "Configuration-Token", NULL, 0, 0, print_attr_string }, { "EAP-Message", NULL, 0, 0, print_attr_string }, /* ^ [70, 79] ^ */ { "Message-Authenticator", NULL, 0, 0, print_attr_string }, /*80*/ { "Tunnel-Private-Group-ID", NULL, 0, 0, print_attr_string }, { "Tunnel-Assignment-ID", NULL, 0, 0, print_attr_string }, { "Tunnel-Preference", NULL, 0, 0, print_attr_num }, { "ARAP-Challenge-Response", NULL, 0, 0, print_attr_strange }, { "Acct-Interim-Interval", NULL, 0, 0, print_attr_num }, { "Acct-Tunnel-Packets-Lost", NULL, 0, 0, print_attr_num }, /*86*/ { "NAS-Port-Id", NULL, 0, 0, print_attr_string }, { "Framed-Pool", NULL, 0, 0, print_attr_string }, { "CUI", NULL, 0, 0, print_attr_string }, /* ^ [80, 89] ^ */ { "Tunnel-Client-Auth-ID", NULL, 0, 0, print_attr_string }, { "Tunnel-Server-Auth-ID", NULL, 0, 0, print_attr_string }, { "NAS-Filter-Rule", NULL, 0, 0, print_attr_string }, { "Unassigned", NULL, 0, 0, NULL }, /*93*/ { "Originating-Line-Info", NULL, 0, 0, NULL }, { "NAS-IPv6-Address", NULL, 0, 0, print_attr_address6 }, { "Framed-Interface-ID", NULL, 0, 0, NULL }, { "Framed-IPv6-Prefix", NULL, 0, 0, print_attr_netmask6 }, { "Login-IPv6-Host", NULL, 0, 0, print_attr_address6 }, { "Framed-IPv6-Route", NULL, 0, 0, print_attr_string }, /* ^ [90, 99] ^ */ { "Framed-IPv6-Pool", NULL, 0, 0, print_attr_string }, { "Error-Cause", NULL, 0, 0, print_attr_strange }, { "EAP-Key-Name", NULL, 0, 0, NULL }, { "Digest-Response", NULL, 0, 0, print_attr_string }, { "Digest-Realm", NULL, 0, 0, print_attr_string }, { "Digest-Nonce", NULL, 0, 0, print_attr_string }, { "Digest-Response-Auth", NULL, 0, 0, print_attr_string }, { "Digest-Nextnonce", NULL, 0, 0, print_attr_string }, { "Digest-Method", NULL, 0, 0, print_attr_string }, { "Digest-URI", NULL, 0, 0, print_attr_string }, /* ^ [100, 109] ^ */ { "Digest-Qop", NULL, 0, 0, print_attr_string }, { "Digest-Algorithm", NULL, 0, 0, print_attr_string }, { "Digest-Entity-Body-Hash", NULL, 0, 0, print_attr_string }, { "Digest-CNonce", NULL, 0, 0, print_attr_string }, { "Digest-Nonce-Count", NULL, 0, 0, print_attr_string }, { "Digest-Username", NULL, 0, 0, print_attr_string }, { "Digest-Opaque", NULL, 0, 0, print_attr_string }, { "Digest-Auth-Param", NULL, 0, 0, print_attr_string }, { "Digest-AKA-Auts", NULL, 0, 0, print_attr_string }, { "Digest-Domain", NULL, 0, 0, print_attr_string }, /* ^ [110, 119] ^ */ { "Digest-Stale", NULL, 0, 0, print_attr_string }, { "Digest-HA1", NULL, 0, 0, print_attr_string }, { "SIP-AOR", NULL, 0, 0, print_attr_string }, { "Delegated-IPv6-Prefix", NULL, 0, 0, print_attr_netmask6 }, { "MIP6-Feature-Vector", NULL, 0, 0, print_attr_vector64 }, { "MIP6-Home-Link-Prefix", NULL, 0, 0, print_attr_mip6_home_link_prefix }, { "Operator-Name", NULL, 0, 0, print_attr_operator_name }, { "Location-Information", NULL, 0, 0, print_attr_location_information }, { "Location-Data", NULL, 0, 0, print_attr_location_data }, { "Basic-Location-Policy-Rules", NULL, 0, 0, print_basic_location_policy_rules } /* ^ [120, 129] ^ */ }; /*****************************/ /* Print an attribute string */ /* value pointed by 'data' */ /* and 'length' size. */ /*****************************/ /* Returns nothing. */ /*****************************/ static void print_attr_string(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code) { u_int i; ND_TCHECK_LEN(data, length); switch(attr_code) { case TUNNEL_PASS: if (length < 3) goto trunc; if (GET_U_1(data) && (GET_U_1(data) <= 0x1F)) ND_PRINT("Tag[%u] ", GET_U_1(data)); else ND_PRINT("Tag[Unused] "); data++; length--; ND_PRINT("Salt %u ", GET_BE_U_2(data)); data+=2; length-=2; break; case TUNNEL_CLIENT_END: case TUNNEL_SERVER_END: case TUNNEL_PRIV_GROUP: case TUNNEL_ASSIGN_ID: case TUNNEL_CLIENT_AUTH: case TUNNEL_SERVER_AUTH: if (GET_U_1(data) <= 0x1F) { if (length < 1) goto trunc; if (GET_U_1(data)) ND_PRINT("Tag[%u] ", GET_U_1(data)); else ND_PRINT("Tag[Unused] "); data++; length--; } break; case EGRESS_VLAN_NAME: if (length < 1) goto trunc; ND_PRINT("%s (0x%02x) ", tok2str(rfc4675_tagged,"Unknown tag",GET_U_1(data)), GET_U_1(data)); data++; length--; break; case EAP_MESSAGE: if (length < 1) goto trunc; eap_print(ndo, data, length); return; } for (i=0; i < length && GET_U_1(data); i++, data++) ND_PRINT("%c", ND_ASCII_ISPRINT(GET_U_1(data)) ? GET_U_1(data) : '.'); return; trunc: nd_print_trunc(ndo); } /* * print vendor specific attributes */ static void print_vendor_attr(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { u_int idx; u_int vendor_id; u_int vendor_type; u_int vendor_length; if (length < 4) goto trunc; vendor_id = GET_BE_U_4(data); data+=4; length-=4; ND_PRINT("Vendor: %s (%u)", tok2str(smi_values,"Unknown",vendor_id), vendor_id); while (length >= 2) { vendor_type = GET_U_1(data); vendor_length = GET_U_1(data + 1); if (vendor_length < 2) { ND_PRINT("\n\t Vendor Attribute: %u, Length: %u (bogus, must be >= 2)", vendor_type, vendor_length); return; } if (vendor_length > length) { ND_PRINT("\n\t Vendor Attribute: %u, Length: %u (bogus, goes past end of vendor-specific attribute)", vendor_type, vendor_length); return; } data+=2; vendor_length-=2; length-=2; ND_TCHECK_LEN(data, vendor_length); ND_PRINT("\n\t Vendor Attribute: %u, Length: %u, Value: ", vendor_type, vendor_length); for (idx = 0; idx < vendor_length ; idx++, data++) ND_PRINT("%c", ND_ASCII_ISPRINT(GET_U_1(data)) ? GET_U_1(data) : '.'); length-=vendor_length; } return; trunc: nd_print_trunc(ndo); } /******************************/ /* Print an attribute numeric */ /* value pointed by 'data' */ /* and 'length' size. */ /******************************/ /* Returns nothing. */ /******************************/ static void print_attr_num(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code) { uint32_t timeout; if (length != 4) { ND_PRINT("ERROR: length %u != 4", length); return; } /* This attribute has standard values */ if (attr_type[attr_code].siz_subtypes) { static const char **table; uint32_t data_value; table = attr_type[attr_code].subtypes; if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) ) { if (!GET_U_1(data)) ND_PRINT("Tag[Unused] "); else ND_PRINT("Tag[%u] ", GET_U_1(data)); data++; data_value = GET_BE_U_3(data); } else { data_value = GET_BE_U_4(data); } if ( data_value <= (uint32_t)(attr_type[attr_code].siz_subtypes - 1 + attr_type[attr_code].first_subtype) && data_value >= attr_type[attr_code].first_subtype ) ND_PRINT("%s", table[data_value]); else ND_PRINT("#%u", data_value); } else { switch(attr_code) /* Be aware of special cases... */ { case FRM_IPX: if (GET_BE_U_4(data) == 0xFFFFFFFE ) ND_PRINT("NAS Select"); else ND_PRINT("%u", GET_BE_U_4(data)); break; case SESSION_TIMEOUT: case IDLE_TIMEOUT: case ACCT_DELAY: case ACCT_SESSION_TIME: case ACCT_INT_INTERVAL: timeout = GET_BE_U_4(data); if ( timeout < 60 ) ND_PRINT("%02d secs", timeout); else { if ( timeout < 3600 ) ND_PRINT("%02d:%02d min", timeout / 60, timeout % 60); else ND_PRINT("%02d:%02d:%02d hours", timeout / 3600, (timeout % 3600) / 60, timeout % 60); } break; case FRM_ATALK_LINK: if (GET_BE_U_4(data)) ND_PRINT("%u", GET_BE_U_4(data)); else ND_PRINT("Unnumbered"); break; case FRM_ATALK_NETWORK: if (GET_BE_U_4(data)) ND_PRINT("%u", GET_BE_U_4(data)); else ND_PRINT("NAS assigned"); break; case TUNNEL_PREFERENCE: if (GET_U_1(data)) ND_PRINT("Tag[%u] ", GET_U_1(data)); else ND_PRINT("Tag[Unused] "); data++; ND_PRINT("%u", GET_BE_U_3(data)); break; case EGRESS_VLAN_ID: ND_PRINT("%s (0x%02x) ", tok2str(rfc4675_tagged,"Unknown tag",GET_U_1(data)), GET_U_1(data)); data++; ND_PRINT("%u", GET_BE_U_3(data)); break; default: ND_PRINT("%u", GET_BE_U_4(data)); break; } /* switch */ } /* if-else */ } /*****************************/ /* Print an attribute IPv4 */ /* address value pointed by */ /* 'data' and 'length' size. */ /*****************************/ /* Returns nothing. */ /*****************************/ static void print_attr_address(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code) { if (length != 4) { ND_PRINT("ERROR: length %u != 4", length); return; } switch(attr_code) { case FRM_IPADDR: case LOG_IPHOST: if (GET_BE_U_4(data) == 0xFFFFFFFF ) ND_PRINT("User Selected"); else if (GET_BE_U_4(data) == 0xFFFFFFFE ) ND_PRINT("NAS Select"); else ND_PRINT("%s",GET_IPADDR_STRING(data)); break; default: ND_PRINT("%s", GET_IPADDR_STRING(data)); break; } } /*****************************/ /* Print an attribute IPv6 */ /* address value pointed by */ /* 'data' and 'length' size. */ /*****************************/ /* Returns nothing. */ /*****************************/ static void print_attr_address6(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { if (length != 16) { ND_PRINT("ERROR: length %u != 16", length); return; } ND_PRINT("%s", GET_IP6ADDR_STRING(data)); } static void print_attr_netmask6(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { u_char data2[16]; if (length < 2 || length > 18) { ND_PRINT("ERROR: length %u not in range (2..18)", length); return; } ND_TCHECK_LEN(data, length); if (GET_U_1(data + 1) > 128) { ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data + 1)); return; } memset(data2, 0, sizeof(data2)); if (length > 2) memcpy(data2, data+2, length-2); ND_PRINT("%s/%u", ip6addr_string(ndo, data2), GET_U_1(data + 1)); /* local buffer, not packet data; don't use GET_IP6ADDR_STRING() */ if (GET_U_1(data + 1) > 8 * (length - 2)) ND_PRINT(" (inconsistent prefix length)"); return; trunc: nd_print_trunc(ndo); } static void print_attr_mip6_home_link_prefix(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { if (length != 17) { ND_PRINT("ERROR: length %u != 17", length); return; } ND_TCHECK_LEN(data, length); if (GET_U_1(data) > 128) { ND_PRINT("ERROR: netmask %u not in range (0..128)", GET_U_1(data)); return; } ND_PRINT("%s/%u", GET_IP6ADDR_STRING(data + 1), GET_U_1(data)); return; trunc: nd_print_trunc(ndo); } static void print_attr_operator_name(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { u_int namespace_value; ND_TCHECK_LEN(data, length); if (length < 2) { ND_PRINT("ERROR: length %u < 2", length); return; } namespace_value = GET_U_1(data); data++; ND_PRINT("[%s] ", tok2str(operator_name_vector, "unknown namespace %u", namespace_value)); (void)nd_printn(ndo, data, length - 1, NULL); return; trunc: nd_print_trunc(ndo); } static void print_attr_location_information(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { uint16_t index; uint8_t code, entity; ND_TCHECK_LEN(data, length); if (length < 21) { ND_PRINT("ERROR: length %u < 21", length); return; } index = GET_BE_U_2(data); data += 2; code = GET_U_1(data); data++; entity = GET_U_1(data); data++; ND_PRINT("index %u, code %s, entity %s, ", index, tok2str(location_information_code_vector, "Unknown (%u)", code), tok2str(location_information_entity_vector, "Unknown (%u)", entity) ); ND_PRINT("sighting time "); p_ntp_time(ndo, (const struct l_fixedpt *)data); ND_PRINT(", "); data += 8; ND_PRINT("time to live "); p_ntp_time(ndo, (const struct l_fixedpt *)data); ND_PRINT(", "); data += 8; ND_PRINT("method \""); (void)nd_printn(ndo, data, length - 20, NULL); ND_PRINT("\""); return; trunc: nd_print_trunc(ndo); } static void print_attr_location_data(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { uint16_t index; ND_TCHECK_LEN(data, length); if (length < 3) { ND_PRINT("ERROR: length %u < 3", length); return; } index = GET_BE_U_2(data); data += 2; ND_PRINT("index %u, location", index); /* The Location field of the String field of the Location-Data attribute * can have two completely different structures depending on the value of * the Code field of a Location-Info attribute, which supposedly precedes * the current attribute. Unfortunately, this choice of encoding makes it * non-trivial to decode the Location field without preserving some state * between the attributes. */ hex_and_ascii_print(ndo, "\n\t ", data, length - 2); return; trunc: nd_print_trunc(ndo); } static void print_basic_location_policy_rules(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { uint16_t flags; ND_TCHECK_LEN(data, length); if (length < 10) { ND_PRINT("ERROR: length %u < 10", length); return; } flags = GET_BE_U_2(data); data += 2; ND_PRINT("flags [%s], ", bittok2str(blpr_bm, "none", flags)); ND_PRINT("retention expires "); p_ntp_time(ndo, (const struct l_fixedpt *)data); data += 8; if (length > 10) { ND_PRINT(", note well \""); (void)nd_printn(ndo, data, length - 10, NULL); ND_PRINT("\""); } return; trunc: nd_print_trunc(ndo); } /*************************************/ /* Print an attribute of 'secs since */ /* January 1, 1970 00:00 UTC' value */ /* pointed by 'data' and 'length' */ /* size. */ /*************************************/ /* Returns nothing. */ /*************************************/ static void print_attr_time(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { time_t attr_time; char string[26]; if (length != 4) { ND_PRINT("ERROR: length %u != 4", length); return; } attr_time = GET_BE_U_4(data); strlcpy(string, ctime(&attr_time), sizeof(string)); /* Get rid of the newline */ string[24] = '\0'; ND_PRINT("%.24s", string); } static void print_attr_vector64(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code _U_) { uint64_t data_value, i; const char *sep = ""; if (length != 8) { ND_PRINT("ERROR: length %u != 8", length); return; } ND_PRINT("["); data_value = GET_BE_U_8(data); /* Print the 64-bit field in a format similar to bittok2str(), less * flagging any unknown bits. This way it should be easier to replace * the custom code with a library function later. */ for (i = 0; i < TAM_SIZE(mip6_feature_vector); i++) { if (data_value & mip6_feature_vector[i].v) { ND_PRINT("%s%s", sep, mip6_feature_vector[i].s); sep = ", "; } } ND_PRINT("]"); } /***********************************/ /* Print an attribute of 'strange' */ /* data format pointed by 'data' */ /* and 'length' size. */ /***********************************/ /* Returns nothing. */ /***********************************/ static void print_attr_strange(netdissect_options *ndo, const u_char *data, u_int length, u_short attr_code) { u_short len_data; u_int error_cause_value; switch(attr_code) { case ARAP_PASS: if (length != 16) { ND_PRINT("ERROR: length %u != 16", length); return; } ND_PRINT("User_challenge ("); len_data = 8; PRINT_HEX(len_data, data); ND_PRINT(") User_resp("); len_data = 8; PRINT_HEX(len_data, data); ND_PRINT(")"); break; case ARAP_FEATURES: if (length != 14) { ND_PRINT("ERROR: length %u != 14", length); return; } if (GET_U_1(data)) ND_PRINT("User can change password"); else ND_PRINT("User cannot change password"); data++; ND_PRINT(", Min password length: %u", GET_U_1(data)); data++; ND_PRINT(", created at: "); len_data = 4; PRINT_HEX(len_data, data); ND_PRINT(", expires in: "); len_data = 4; PRINT_HEX(len_data, data); ND_PRINT(", Current Time: "); len_data = 4; PRINT_HEX(len_data, data); break; case ARAP_CHALLENGE_RESP: if (length < 8) { ND_PRINT("ERROR: length %u != 8", length); return; } len_data = 8; PRINT_HEX(len_data, data); break; case ERROR_CAUSE: if (length != 4) { ND_PRINT("Error: length %u != 4", length); return; } error_cause_value = GET_BE_U_4(data); ND_PRINT("Error cause %u: %s", error_cause_value, tok2str(errorcausetype, "Error-Cause %u not known", error_cause_value)); break; } return; } static void radius_attrs_print(netdissect_options *ndo, const u_char *attr, u_int length) { const struct radius_attr *rad_attr = (const struct radius_attr *)attr; const char *attr_string; uint8_t type, len; while (length > 0) { if (length < 2) goto trunc; ND_TCHECK_SIZE(rad_attr); type = GET_U_1(rad_attr->type); len = GET_U_1(rad_attr->len); if (type != 0 && type < TAM_SIZE(attr_type)) attr_string = attr_type[type].name; else attr_string = "Unknown"; ND_PRINT("\n\t %s Attribute (%u), length: %u", attr_string, type, len); if (len < 2) { ND_PRINT(" (bogus, must be >= 2)"); return; } if (len > length) { ND_PRINT(" (bogus, goes past end of packet)"); return; } ND_PRINT(", Value: "); if (type < TAM_SIZE(attr_type)) { if (len > 2) { if ( attr_type[type].print_func ) (*attr_type[type].print_func)( ndo, ((const u_char *)(rad_attr+1)), len - 2, type); } } /* do we also want to see a hex dump ? */ if (ndo->ndo_vflag> 1) print_unknown_data(ndo, (const u_char *)rad_attr+2, "\n\t ", (len)-2); length-=(len); rad_attr = (const struct radius_attr *)( ((const char *)(rad_attr))+len); } return; trunc: nd_print_trunc(ndo); } void radius_print(netdissect_options *ndo, const u_char *dat, u_int length) { const struct radius_hdr *rad; u_int len, auth_idx; ndo->ndo_protocol = "radius"; ND_TCHECK_LEN(dat, MIN_RADIUS_LEN); rad = (const struct radius_hdr *)dat; len = GET_BE_U_2(rad->len); if (len < MIN_RADIUS_LEN) { nd_print_trunc(ndo); return; } if (len > length) len = length; if (ndo->ndo_vflag < 1) { ND_PRINT("RADIUS, %s (%u), id: 0x%02x length: %u", tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)), GET_U_1(rad->code), GET_U_1(rad->id), len); return; } else { ND_PRINT("RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ", len, tok2str(radius_command_values,"Unknown Command",GET_U_1(rad->code)), GET_U_1(rad->code), GET_U_1(rad->id)); for(auth_idx=0; auth_idx < 16; auth_idx++) ND_PRINT("%02x", rad->auth[auth_idx]); } if (len > MIN_RADIUS_LEN) radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN); return; trunc: nd_print_trunc(ndo); }