| /* |
| * 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 |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "netdissect-stdinc.h" |
| |
| #include <string.h> |
| |
| #include "netdissect.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| #include "oui.h" |
| |
| |
| #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) ) |
| |
| #define PRINT_HEX(bytes_len, ptr_data) \ |
| while(bytes_len) \ |
| { \ |
| ND_PRINT("%02X", *ptr_data ); \ |
| ptr_data++; \ |
| bytes_len--; \ |
| } |
| |
| |
| /* Radius packet codes */ |
| #define RADCMD_ACCESS_REQ 1 /* Access-Request */ |
| #define RADCMD_ACCESS_ACC 2 /* Access-Accept */ |
| #define RADCMD_ACCESS_REJ 3 /* Access-Reject */ |
| #define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */ |
| #define RADCMD_ACCOUN_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_ACCOUN_REQ, "Accounting-Request" }, |
| { RADCMD_ACCOUN_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 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_time(netdissect_options *, const u_char *, u_int, u_short); |
| static void print_attr_vector64(netdissect_options *, register 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 */ |
| static const char *serv_type[]={ NULL, |
| "Login", |
| "Framed", |
| "Callback Login", |
| "Callback Framed", |
| "Outbound", |
| "Administrative", |
| "NAS Prompt", |
| "Authenticate Only", |
| "Callback NAS Prompt", |
| "Call Check", |
| "Callback Administrative", |
| }; |
| |
| /* Framed-Protocol Attribute standard values */ |
| static const char *frm_proto[]={ NULL, |
| "PPP", |
| "SLIP", |
| "ARAP", |
| "Gandalf proprietary", |
| "Xylogics IPX/SLIP", |
| "X.75 Synchronous", |
| }; |
| |
| /* Framed-Routing Attribute standard values */ |
| static const char *frm_routing[]={ "None", |
| "Send", |
| "Listen", |
| "Send&Listen", |
| }; |
| |
| /* Framed-Compression Attribute standard values */ |
| static const char *frm_comp[]={ "None", |
| "VJ TCP/IP", |
| "IPX", |
| "Stac-LZS", |
| }; |
| |
| /* Login-Service Attribute standard values */ |
| 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 */ |
| 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 */ |
| 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", |
| "G.3 Fax", |
| "SDSL", |
| "ADSL-CAP", |
| "ADSL-DMT", |
| "ISDN-DSL", |
| "Ethernet", |
| "xDSL", |
| "Cable", |
| "Wireless - Other", |
| "Wireless - IEEE 802.11", |
| }; |
| |
| /* Acct-Status-Type Accounting Attribute standard values */ |
| static const char *acct_status[]={ NULL, |
| "Start", |
| "Stop", |
| "Interim-Update", |
| "Unassigned", |
| "Unassigned", |
| "Unassigned", |
| "Accounting-On", |
| "Accounting-Off", |
| "Tunnel-Start", |
| "Tunnel-Stop", |
| "Tunnel-Reject", |
| "Tunnel-Link-Start", |
| "Tunnel-Link-Stop", |
| "Tunnel-Link-Reject", |
| "Failed", |
| }; |
| |
| /* Acct-Authentic Accounting Attribute standard values */ |
| static const char *acct_auth[]={ NULL, |
| "RADIUS", |
| "Local", |
| "Remote", |
| }; |
| |
| /* Acct-Terminate-Cause Accounting Attribute standard values */ |
| static const char *acct_term[]={ NULL, |
| "User Request", |
| "Lost Carrier", |
| "Lost Service", |
| "Idle Timeout", |
| "Session Timeout", |
| "Admin Reset", |
| "Admin Reboot", |
| "Port Error", |
| "NAS Error", |
| "NAS Request", |
| "NAS Reboot", |
| "Port Unneeded", |
| "Port Preempted", |
| "Port Suspended", |
| "Service Unavailable", |
| "Callback", |
| "User Error", |
| "Host Request", |
| }; |
| |
| /* Tunnel-Type Attribute standard values */ |
| static const char *tunnel_type[]={ NULL, |
| "PPTP", |
| "L2F", |
| "L2TP", |
| "ATMP", |
| "VTP", |
| "AH", |
| "IP-IP", |
| "MIN-IP-IP", |
| "ESP", |
| "GRE", |
| "DVS", |
| "IP-in-IP Tunneling", |
| "VLAN", |
| }; |
| |
| /* Tunnel-Medium-Type Attribute standard values */ |
| static const char *tunnel_medium[]={ NULL, |
| "IPv4", |
| "IPv6", |
| "NSAP", |
| "HDLC", |
| "BBN 1822", |
| "802", |
| "E.163", |
| "E.164", |
| "F.69", |
| "X.121", |
| "IPX", |
| "Appletalk", |
| "Decnet IV", |
| "Banyan Vines", |
| "E.164 with NSAP subaddress", |
| }; |
| |
| /* ARAP-Zone-Access Attribute standard values */ |
| static const char *arap_zone[]={ NULL, |
| "Only access to dfl zone", |
| "Use zone filter inc.", |
| "Not used", |
| "Use zone filter exc.", |
| }; |
| |
| static const char *prompt[]={ "No Echo", |
| "Echo", |
| }; |
| |
| /* Error-Cause standard values */ |
| #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" }, |
| }; |
| |
| |
| 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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| { "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 }, |
| }; |
| |
| |
| /*****************************/ |
| /* 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 (EXTRACT_U_1(data) && (EXTRACT_U_1(data) <= 0x1F)) |
| ND_PRINT("Tag[%u] ", EXTRACT_U_1(data)); |
| else |
| ND_PRINT("Tag[Unused] "); |
| data++; |
| length--; |
| ND_PRINT("Salt %u ", EXTRACT_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 (EXTRACT_U_1(data) <= 0x1F) |
| { |
| if (length < 1) |
| goto trunc; |
| if (EXTRACT_U_1(data)) |
| ND_PRINT("Tag[%u] ", EXTRACT_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",EXTRACT_U_1(data)), |
| EXTRACT_U_1(data)); |
| data++; |
| length--; |
| break; |
| } |
| |
| for (i=0; i < length && EXTRACT_U_1(data); i++, data++) |
| ND_PRINT("%c", ND_ISPRINT(EXTRACT_U_1(data)) ? EXTRACT_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; |
| ND_TCHECK_4(data); |
| vendor_id = EXTRACT_BE_U_4(data); |
| data+=4; |
| length-=4; |
| |
| ND_PRINT("Vendor: %s (%u)", |
| tok2str(smi_values,"Unknown",vendor_id), |
| vendor_id); |
| |
| while (length >= 2) { |
| ND_TCHECK_2(data); |
| |
| vendor_type = EXTRACT_U_1(data); |
| vendor_length = EXTRACT_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_ISPRINT(EXTRACT_U_1(data)) ? EXTRACT_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; |
| } |
| |
| ND_TCHECK_4(data); |
| /* 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 (!EXTRACT_U_1(data)) |
| ND_PRINT("Tag[Unused] "); |
| else |
| ND_PRINT("Tag[%u] ", EXTRACT_U_1(data)); |
| data++; |
| data_value = EXTRACT_BE_U_3(data); |
| } |
| else |
| { |
| data_value = EXTRACT_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 (EXTRACT_BE_U_4(data) == 0xFFFFFFFE ) |
| ND_PRINT("NAS Select"); |
| else |
| ND_PRINT("%u", EXTRACT_BE_U_4(data)); |
| break; |
| |
| case SESSION_TIMEOUT: |
| case IDLE_TIMEOUT: |
| case ACCT_DELAY: |
| case ACCT_SESSION_TIME: |
| case ACCT_INT_INTERVAL: |
| timeout = EXTRACT_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 (EXTRACT_BE_U_4(data)) |
| ND_PRINT("%u", EXTRACT_BE_U_4(data)); |
| else |
| ND_PRINT("Unnumbered"); |
| break; |
| |
| case FRM_ATALK_NETWORK: |
| if (EXTRACT_BE_U_4(data)) |
| ND_PRINT("%u", EXTRACT_BE_U_4(data)); |
| else |
| ND_PRINT("NAS assigned"); |
| break; |
| |
| case TUNNEL_PREFERENCE: |
| if (EXTRACT_U_1(data)) |
| ND_PRINT("Tag[%u] ", EXTRACT_U_1(data)); |
| else |
| ND_PRINT("Tag[Unused] "); |
| data++; |
| ND_PRINT("%u", EXTRACT_BE_U_3(data)); |
| break; |
| |
| case EGRESS_VLAN_ID: |
| ND_PRINT("%s (0x%02x) ", |
| tok2str(rfc4675_tagged,"Unknown tag",EXTRACT_U_1(data)), |
| EXTRACT_U_1(data)); |
| data++; |
| ND_PRINT("%u", EXTRACT_BE_U_3(data)); |
| break; |
| |
| default: |
| ND_PRINT("%u", EXTRACT_BE_U_4(data)); |
| break; |
| |
| } /* switch */ |
| |
| } /* if-else */ |
| |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| /*****************************/ |
| /* 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; |
| } |
| |
| ND_TCHECK_4(data); |
| |
| switch(attr_code) |
| { |
| case FRM_IPADDR: |
| case LOG_IPHOST: |
| if (EXTRACT_BE_U_4(data) == 0xFFFFFFFF ) |
| ND_PRINT("User Selected"); |
| else |
| if (EXTRACT_BE_U_4(data) == 0xFFFFFFFE ) |
| ND_PRINT("NAS Select"); |
| else |
| ND_PRINT("%s",ipaddr_string(ndo, data)); |
| break; |
| |
| default: |
| ND_PRINT("%s", ipaddr_string(ndo, data)); |
| break; |
| } |
| |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| /*****************************/ |
| /* 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_TCHECK_16(data); |
| |
| ND_PRINT("%s", ip6addr_string(ndo, data)); |
| |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| 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 (EXTRACT_U_1(data + 1) > 128) |
| { |
| ND_PRINT("ERROR: netmask %u not in range (0..128)", EXTRACT_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), EXTRACT_U_1(data + 1)); |
| |
| if (EXTRACT_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 (EXTRACT_U_1(data) > 128) |
| { |
| ND_PRINT("ERROR: netmask %u not in range (0..128)", EXTRACT_U_1(data)); |
| return; |
| } |
| |
| ND_PRINT("%s/%u", ip6addr_string(ndo, data + 1), EXTRACT_U_1(data)); |
| |
| 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; |
| } |
| |
| ND_TCHECK_4(data); |
| |
| attr_time = EXTRACT_BE_U_4(data); |
| strlcpy(string, ctime(&attr_time), sizeof(string)); |
| /* Get rid of the newline */ |
| string[24] = '\0'; |
| ND_PRINT("%.24s", string); |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| static void |
| print_attr_vector64(netdissect_options *ndo, |
| register 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("["); |
| ND_TCHECK_8(data[0]); |
| |
| data_value = EXTRACT_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("]"); |
| |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| /***********************************/ |
| /* 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 ("); |
| ND_TCHECK_8(data); |
| len_data = 8; |
| PRINT_HEX(len_data, data); |
| ND_PRINT(") User_resp("); |
| ND_TCHECK_8(data); |
| 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; |
| } |
| ND_TCHECK_1(data); |
| if (EXTRACT_U_1(data)) |
| ND_PRINT("User can change password"); |
| else |
| ND_PRINT("User cannot change password"); |
| data++; |
| ND_TCHECK_1(data); |
| ND_PRINT(", Min password length: %u", EXTRACT_U_1(data)); |
| data++; |
| ND_PRINT(", created at: "); |
| ND_TCHECK_4(data); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| ND_PRINT(", expires in: "); |
| ND_TCHECK_4(data); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| ND_PRINT(", Current Time: "); |
| ND_TCHECK_4(data); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| break; |
| |
| case ARAP_CHALLENGE_RESP: |
| if (length < 8) |
| { |
| ND_PRINT("ERROR: length %u != 8", length); |
| return; |
| } |
| ND_TCHECK_8(data); |
| len_data = 8; |
| PRINT_HEX(len_data, data); |
| break; |
| |
| case ERROR_CAUSE: |
| if (length != 4) |
| { |
| ND_PRINT("Error: length %u != 4", length); |
| return; |
| } |
| ND_TCHECK_4(data); |
| |
| error_cause_value = EXTRACT_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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |
| |
| 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 = EXTRACT_U_1(rad_attr->type); |
| len = EXTRACT_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 = EXTRACT_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",EXTRACT_U_1(rad->code)), |
| EXTRACT_U_1(rad->code), |
| EXTRACT_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",EXTRACT_U_1(rad->code)), |
| EXTRACT_U_1(rad->code), |
| EXTRACT_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); |
| } |
