mirror of
https://github.com/the-tcpdump-group/tcpdump.git
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1166 lines
42 KiB
C
1166 lines
42 KiB
C
/*
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* Copyright (C) 2000 Alfredo Andres Omella. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* \summary: Radius protocol printer */
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/*
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* Radius printer routines as specified on:
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*
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* RFC 2865:
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* "Remote Authentication Dial In User Service (RADIUS)"
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*
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* RFC 2866:
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* "RADIUS Accounting"
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*
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* RFC 2867:
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* "RADIUS Accounting Modifications for Tunnel Protocol Support"
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*
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* RFC 2868:
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* "RADIUS Attributes for Tunnel Protocol Support"
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*
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* RFC 2869:
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* "RADIUS Extensions"
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*
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* RFC 3162:
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* "RADIUS and IPv6"
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*
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* RFC 3580:
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* "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)"
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* "Usage Guidelines"
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*
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* RFC 4072:
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* "Diameter Extensible Authentication Protocol (EAP) Application"
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*
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* RFC 4675:
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* "RADIUS Attributes for Virtual LAN and Priority Support"
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*
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* RFC 4818:
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* "RADIUS Delegated-IPv6-Prefix Attribute"
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*
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* RFC 4849:
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* "RADIUS Filter Rule Attribute"
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*
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* RFC 5090:
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* "RADIUS Extension for Digest Authentication"
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*
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* RFC 5176:
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* "Dynamic Authorization Extensions to RADIUS"
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*
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* RFC 5580:
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* "Carrying Location Objects in RADIUS and Diameter"
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*
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* RFC 7155:
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* "Diameter Network Access Server Application"
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*
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* Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15
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*
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* TODO: Among other things to print ok MacIntosh and Vendor values
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <netdissect-stdinc.h>
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#include <string.h>
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#include "netdissect.h"
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#include "addrtoname.h"
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#include "extract.h"
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#include "oui.h"
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static const char tstr[] = " [|radius]";
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#define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) )
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#define PRINT_HEX(bytes_len, ptr_data) \
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while(bytes_len) \
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{ \
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ND_PRINT("%02X", *ptr_data ); \
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ptr_data++; \
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bytes_len--; \
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}
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/* Radius packet codes */
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#define RADCMD_ACCESS_REQ 1 /* Access-Request */
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#define RADCMD_ACCESS_ACC 2 /* Access-Accept */
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#define RADCMD_ACCESS_REJ 3 /* Access-Reject */
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#define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */
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#define RADCMD_ACCOUN_RES 5 /* Accounting-Response */
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#define RADCMD_ACCESS_CHA 11 /* Access-Challenge */
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#define RADCMD_STATUS_SER 12 /* Status-Server */
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#define RADCMD_STATUS_CLI 13 /* Status-Client */
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#define RADCMD_DISCON_REQ 40 /* Disconnect-Request */
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#define RADCMD_DISCON_ACK 41 /* Disconnect-ACK */
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#define RADCMD_DISCON_NAK 42 /* Disconnect-NAK */
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#define RADCMD_COA_REQ 43 /* CoA-Request */
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#define RADCMD_COA_ACK 44 /* CoA-ACK */
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#define RADCMD_COA_NAK 45 /* CoA-NAK */
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#define RADCMD_RESERVED 255 /* Reserved */
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static const struct tok radius_command_values[] = {
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{ RADCMD_ACCESS_REQ, "Access-Request" },
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{ RADCMD_ACCESS_ACC, "Access-Accept" },
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{ RADCMD_ACCESS_REJ, "Access-Reject" },
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{ RADCMD_ACCOUN_REQ, "Accounting-Request" },
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{ RADCMD_ACCOUN_RES, "Accounting-Response" },
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{ RADCMD_ACCESS_CHA, "Access-Challenge" },
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{ RADCMD_STATUS_SER, "Status-Server" },
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{ RADCMD_STATUS_CLI, "Status-Client" },
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{ RADCMD_DISCON_REQ, "Disconnect-Request" },
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{ RADCMD_DISCON_ACK, "Disconnect-ACK" },
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{ RADCMD_DISCON_NAK, "Disconnect-NAK" },
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{ RADCMD_COA_REQ, "CoA-Request" },
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{ RADCMD_COA_ACK, "CoA-ACK" },
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{ RADCMD_COA_NAK, "CoA-NAK" },
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{ RADCMD_RESERVED, "Reserved" },
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{ 0, NULL}
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};
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/********************************/
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/* Begin Radius Attribute types */
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/********************************/
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#define SERV_TYPE 6
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#define FRM_IPADDR 8
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#define LOG_IPHOST 14
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#define LOG_SERVICE 15
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#define FRM_IPX 23
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#define SESSION_TIMEOUT 27
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#define IDLE_TIMEOUT 28
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#define FRM_ATALK_LINK 37
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#define FRM_ATALK_NETWORK 38
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#define ACCT_DELAY 41
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#define ACCT_SESSION_TIME 46
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#define EGRESS_VLAN_ID 56
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#define EGRESS_VLAN_NAME 58
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#define TUNNEL_TYPE 64
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#define TUNNEL_MEDIUM 65
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#define TUNNEL_CLIENT_END 66
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#define TUNNEL_SERVER_END 67
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#define TUNNEL_PASS 69
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#define ARAP_PASS 70
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#define ARAP_FEATURES 71
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#define TUNNEL_PRIV_GROUP 81
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#define TUNNEL_ASSIGN_ID 82
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#define TUNNEL_PREFERENCE 83
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#define ARAP_CHALLENGE_RESP 84
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#define ACCT_INT_INTERVAL 85
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#define TUNNEL_CLIENT_AUTH 90
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#define TUNNEL_SERVER_AUTH 91
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#define ERROR_CAUSE 101
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/********************************/
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/* End Radius Attribute types */
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/********************************/
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#define RFC4675_TAGGED 0x31
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#define RFC4675_UNTAGGED 0x32
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static const struct tok rfc4675_tagged[] = {
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{ RFC4675_TAGGED, "Tagged" },
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{ RFC4675_UNTAGGED, "Untagged" },
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{ 0, NULL}
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};
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static void print_attr_string(netdissect_options *, const u_char *, u_int, u_short );
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static void print_attr_num(netdissect_options *, const u_char *, u_int, u_short );
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static void print_vendor_attr(netdissect_options *, const u_char *, u_int, u_short );
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static void print_attr_address(netdissect_options *, const u_char *, u_int, u_short);
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static void print_attr_address6(netdissect_options *, const u_char *, u_int, u_short);
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static void print_attr_netmask6(netdissect_options *, const u_char *, u_int, u_short);
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static void print_attr_time(netdissect_options *, const u_char *, u_int, u_short);
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static void print_attr_strange(netdissect_options *, const u_char *, u_int, u_short);
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struct radius_hdr { nd_uint8_t code; /* Radius packet code */
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nd_uint8_t id; /* Radius packet id */
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nd_uint16_t len; /* Radius total length */
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nd_byte auth[16]; /* Authenticator */
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};
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#define MIN_RADIUS_LEN 20
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struct radius_attr { nd_uint8_t type; /* Attribute type */
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nd_uint8_t len; /* Attribute length */
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};
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/* Service-Type Attribute standard values */
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static const char *serv_type[]={ NULL,
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"Login",
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"Framed",
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"Callback Login",
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"Callback Framed",
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"Outbound",
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"Administrative",
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"NAS Prompt",
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"Authenticate Only",
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"Callback NAS Prompt",
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"Call Check",
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"Callback Administrative",
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};
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/* Framed-Protocol Attribute standard values */
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static const char *frm_proto[]={ NULL,
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"PPP",
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"SLIP",
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"ARAP",
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"Gandalf proprietary",
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"Xylogics IPX/SLIP",
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"X.75 Synchronous",
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};
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/* Framed-Routing Attribute standard values */
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static const char *frm_routing[]={ "None",
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"Send",
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"Listen",
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"Send&Listen",
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};
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/* Framed-Compression Attribute standard values */
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static const char *frm_comp[]={ "None",
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"VJ TCP/IP",
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"IPX",
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"Stac-LZS",
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};
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/* Login-Service Attribute standard values */
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static const char *login_serv[]={ "Telnet",
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"Rlogin",
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"TCP Clear",
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"PortMaster(proprietary)",
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"LAT",
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"X.25-PAD",
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"X.25-T3POS",
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"Unassigned",
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"TCP Clear Quiet",
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};
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/* Termination-Action Attribute standard values */
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static const char *term_action[]={ "Default",
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"RADIUS-Request",
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};
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/* Ingress-Filters Attribute standard values */
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static const char *ingress_filters[]={ NULL,
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"Enabled",
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"Disabled",
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};
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/* NAS-Port-Type Attribute standard values */
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static const char *nas_port_type[]={ "Async",
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"Sync",
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"ISDN Sync",
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"ISDN Async V.120",
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"ISDN Async V.110",
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"Virtual",
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"PIAFS",
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"HDLC Clear Channel",
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"X.25",
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"X.75",
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"G.3 Fax",
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"SDSL",
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"ADSL-CAP",
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"ADSL-DMT",
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"ISDN-DSL",
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"Ethernet",
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"xDSL",
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"Cable",
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"Wireless - Other",
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"Wireless - IEEE 802.11",
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};
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/* Acct-Status-Type Accounting Attribute standard values */
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static const char *acct_status[]={ NULL,
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"Start",
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"Stop",
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"Interim-Update",
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"Unassigned",
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"Unassigned",
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"Unassigned",
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"Accounting-On",
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"Accounting-Off",
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"Tunnel-Start",
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"Tunnel-Stop",
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"Tunnel-Reject",
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"Tunnel-Link-Start",
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"Tunnel-Link-Stop",
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"Tunnel-Link-Reject",
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"Failed",
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};
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/* Acct-Authentic Accounting Attribute standard values */
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static const char *acct_auth[]={ NULL,
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"RADIUS",
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"Local",
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"Remote",
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};
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/* Acct-Terminate-Cause Accounting Attribute standard values */
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static const char *acct_term[]={ NULL,
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"User Request",
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"Lost Carrier",
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"Lost Service",
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"Idle Timeout",
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"Session Timeout",
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"Admin Reset",
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"Admin Reboot",
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"Port Error",
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"NAS Error",
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"NAS Request",
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"NAS Reboot",
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"Port Unneeded",
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"Port Preempted",
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"Port Suspended",
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"Service Unavailable",
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"Callback",
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"User Error",
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"Host Request",
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};
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/* Tunnel-Type Attribute standard values */
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static const char *tunnel_type[]={ NULL,
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"PPTP",
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"L2F",
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"L2TP",
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"ATMP",
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"VTP",
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"AH",
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"IP-IP",
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"MIN-IP-IP",
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"ESP",
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"GRE",
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"DVS",
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"IP-in-IP Tunneling",
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"VLAN",
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};
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/* Tunnel-Medium-Type Attribute standard values */
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static const char *tunnel_medium[]={ NULL,
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"IPv4",
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"IPv6",
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"NSAP",
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"HDLC",
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"BBN 1822",
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"802",
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"E.163",
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"E.164",
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"F.69",
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"X.121",
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"IPX",
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"Appletalk",
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"Decnet IV",
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"Banyan Vines",
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"E.164 with NSAP subaddress",
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};
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/* ARAP-Zone-Access Attribute standard values */
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static const char *arap_zone[]={ NULL,
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"Only access to dfl zone",
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"Use zone filter inc.",
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"Not used",
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"Use zone filter exc.",
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};
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static const char *prompt[]={ "No Echo",
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"Echo",
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};
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/* Error-Cause standard values */
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#define ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED 201
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#define ERROR_CAUSE_INVALID_EAP_PACKET 202
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#define ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE 401
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#define ERROR_CAUSE_MISSING_ATTRIBUTE 402
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#define ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH 403
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#define ERROR_CAUSE_INVALID_REQUEST 404
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#define ERROR_CAUSE_UNSUPPORTED_SERVICE 405
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#define ERROR_CAUSE_UNSUPPORTED_EXTENSION 406
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#define ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE 407
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#define ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED 501
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#define ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE 502
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#define ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND 503
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#define ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE 504
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#define ERROR_CAUSE_PROXY_PROCESSING_ERROR 505
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#define ERROR_CAUSE_RESOURCES_UNAVAILABLE 506
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#define ERROR_CAUSE_REQUEST_INITIATED 507
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#define ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED 508
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#define ERROR_CAUSE_LOCATION_INFO_REQUIRED 509
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static const struct tok errorcausetype[] = {
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{ ERROR_CAUSE_RESIDUAL_CONTEXT_REMOVED, "Residual Session Context Removed" },
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{ ERROR_CAUSE_INVALID_EAP_PACKET, "Invalid EAP Packet (Ignored)" },
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{ ERROR_CAUSE_UNSUPPORTED_ATTRIBUTE, "Unsupported Attribute" },
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{ ERROR_CAUSE_MISSING_ATTRIBUTE, "Missing Attribute" },
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{ ERROR_CAUSE_NAS_IDENTIFICATION_MISMATCH, "NAS Identification Mismatch" },
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{ ERROR_CAUSE_INVALID_REQUEST, "Invalid Request" },
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{ ERROR_CAUSE_UNSUPPORTED_SERVICE, "Unsupported Service" },
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{ ERROR_CAUSE_UNSUPPORTED_EXTENSION, "Unsupported Extension" },
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{ ERROR_CAUSE_INVALID_ATTRIBUTE_VALUE, "Invalid Attribute Value" },
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{ ERROR_CAUSE_ADMINISTRATIVELY_PROHIBITED, "Administratively Prohibited" },
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{ ERROR_CAUSE_PROXY_REQUEST_NOT_ROUTABLE, "Request Not Routable (Proxy)" },
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{ ERROR_CAUSE_SESSION_CONTEXT_NOT_FOUND, "Session Context Not Found" },
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{ ERROR_CAUSE_SESSION_CONTEXT_NOT_REMOVABLE, "Session Context Not Removable" },
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{ ERROR_CAUSE_PROXY_PROCESSING_ERROR, "Other Proxy Processing Error" },
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{ ERROR_CAUSE_RESOURCES_UNAVAILABLE, "Resources Unavailable" },
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{ ERROR_CAUSE_REQUEST_INITIATED, "Request Initiated" },
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{ ERROR_CAUSE_MULTIPLE_SESSION_SELECTION_UNSUPPORTED, "Multiple Session Selection Unsupported" },
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{ ERROR_CAUSE_LOCATION_INFO_REQUIRED, "Location Info Required" },
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{ 0, NULL }
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};
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static struct attrtype {
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const char *name; /* Attribute name */
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const char **subtypes; /* Standard Values (if any) */
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u_char siz_subtypes; /* Size of total standard values */
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u_char first_subtype; /* First standard value is 0 or 1 */
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void (*print_func)(netdissect_options *, const u_char *, u_int, u_short);
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} attr_type[]=
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{
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{ NULL, NULL, 0, 0, NULL },
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{ "User-Name", NULL, 0, 0, print_attr_string },
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{ "User-Password", NULL, 0, 0, NULL },
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{ "CHAP-Password", NULL, 0, 0, NULL },
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{ "NAS-IP-Address", NULL, 0, 0, print_attr_address },
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{ "NAS-Port", NULL, 0, 0, print_attr_num },
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{ "Service-Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num },
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{ "Framed-Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num },
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{ "Framed-IP-Address", NULL, 0, 0, print_attr_address },
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{ "Framed-IP-Netmask", NULL, 0, 0, print_attr_address },
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{ "Framed-Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num },
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{ "Filter-Id", NULL, 0, 0, print_attr_string },
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{ "Framed-MTU", NULL, 0, 0, print_attr_num },
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{ "Framed-Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num },
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{ "Login-IP-Host", NULL, 0, 0, print_attr_address },
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{ "Login-Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num },
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{ "Login-TCP-Port", NULL, 0, 0, print_attr_num },
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{ "Unassigned", NULL, 0, 0, NULL }, /*17*/
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{ "Reply-Message", NULL, 0, 0, print_attr_string },
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{ "Callback-Number", NULL, 0, 0, print_attr_string },
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{ "Callback-Id", NULL, 0, 0, print_attr_string },
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{ "Unassigned", NULL, 0, 0, NULL }, /*21*/
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{ "Framed-Route", NULL, 0, 0, print_attr_string },
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{ "Framed-IPX-Network", NULL, 0, 0, print_attr_num },
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{ "State", NULL, 0, 0, print_attr_string },
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{ "Class", NULL, 0, 0, print_attr_string },
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{ "Vendor-Specific", NULL, 0, 0, print_vendor_attr },
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{ "Session-Timeout", NULL, 0, 0, print_attr_num },
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{ "Idle-Timeout", NULL, 0, 0, print_attr_num },
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{ "Termination-Action", term_action, TAM_SIZE(term_action), 0, print_attr_num },
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{ "Called-Station-Id", NULL, 0, 0, print_attr_string },
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{ "Calling-Station-Id", NULL, 0, 0, print_attr_string },
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{ "NAS-Identifier", NULL, 0, 0, print_attr_string },
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{ "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 },
|
|
};
|
|
|
|
|
|
/*****************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
/*
|
|
* 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("%s", tstr);
|
|
}
|
|
|
|
/******************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
/*****************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
/*****************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
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("%s", tstr);
|
|
}
|
|
|
|
/*************************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
/***********************************/
|
|
/* 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("%s", tstr);
|
|
}
|
|
|
|
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";
|
|
if (len < 2)
|
|
{
|
|
ND_PRINT("\n\t %s Attribute (%u), length: %u (bogus, must be >= 2)",
|
|
attr_string,
|
|
type,
|
|
len);
|
|
return;
|
|
}
|
|
if (len > length)
|
|
{
|
|
ND_PRINT("\n\t %s Attribute (%u), length: %u (bogus, goes past end of packet)",
|
|
attr_string,
|
|
type,
|
|
len);
|
|
return;
|
|
}
|
|
ND_PRINT("\n\t %s Attribute (%u), length: %u, Value: ",
|
|
attr_string,
|
|
type,
|
|
len);
|
|
|
|
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("%s", tstr);
|
|
}
|
|
|
|
void
|
|
radius_print(netdissect_options *ndo,
|
|
const u_char *dat, u_int length)
|
|
{
|
|
const struct radius_hdr *rad;
|
|
u_int len, auth_idx;
|
|
|
|
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("%s", tstr);
|
|
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("%s", tstr);
|
|
}
|