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https://github.com/the-tcpdump-group/tcpdump.git
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d8878f053d
just add some additional TCHECK/TCHECK2 bounds checks to the code that dissects attributes and let that handle the snapshot length checks. Do the length check once per attribute, rather than doing a single check up front. Use TCHECK/TCHECK2 and TTEST/TTEST2, so that we print "too short" indications. Make the "too short" indications all look the same. Rename "radius_attr_print()" to "radius_attrs_print()" to make it clearer that it has a loop to print all attributes, rather than just printing one attribute. As per Steiner Haug, the length of a vendor-specific attribute includes the type and length bytes, so subtract two from the length to get the length of the attribute's data.
938 lines
32 KiB
C
938 lines
32 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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/*
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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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* 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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#ifndef lint
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static const char rcsid[] _U_ =
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"$Id: print-radius.c,v 1.28 2005-09-26 01:01:55 guy Exp $";
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#endif
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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 <tcpdump-stdinc.h>
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#include <string.h>
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#include <stdio.h>
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#include "interface.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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#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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printf("%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_RESERVED 255 /* Reserved */
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static 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_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 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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/********************************/
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/* End Radius Attribute types */
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/********************************/
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static void print_attr_string(register u_char *, u_int, u_short );
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static void print_attr_num(register u_char *, u_int, u_short );
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static void print_vendor_attr(register u_char *, u_int, u_short );
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static void print_attr_address(register u_char *, u_int, u_short);
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static void print_attr_time(register u_char *, u_int, u_short);
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static void print_attr_strange(register u_char *, u_int, u_short);
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struct radius_hdr { u_int8_t code; /* Radius packet code */
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u_int8_t id; /* Radius packet id */
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u_int16_t len; /* Radius total length */
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u_int8_t auth[16]; /* Authenticator */
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};
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#define MIN_RADIUS_LEN 20
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struct radius_attr { u_int8_t type; /* Attribute type */
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u_int8_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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/* 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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};
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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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struct attrtype { 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)(register 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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{ "Username", NULL, 0, 0, print_attr_string },
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{ "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 Network", 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", 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", NULL, 0, 0, print_attr_string },
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{ "Calling Station", NULL, 0, 0, print_attr_string },
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{ "NAS ID", NULL, 0, 0, print_attr_string },
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{ "Proxy State", NULL, 0, 0, print_attr_string },
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{ "Login LAT Service", NULL, 0, 0, print_attr_string },
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{ "Login LAT Node", NULL, 0, 0, print_attr_string },
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{ "Login LAT Group", NULL, 0, 0, print_attr_string },
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{ "Framed Appletalk Link", NULL, 0, 0, print_attr_num },
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{ "Framed Appltalk Net", NULL, 0, 0, print_attr_num },
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{ "Framed Appletalk Zone", NULL, 0, 0, print_attr_string },
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{ "Accounting Status", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num },
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{ "Accounting Delay", NULL, 0, 0, print_attr_num },
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{ "Accounting Input Octets", NULL, 0, 0, print_attr_num },
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{ "Accounting Output Octets", NULL, 0, 0, print_attr_num },
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{ "Accounting Session ID", NULL, 0, 0, print_attr_string },
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{ "Accounting Authentication", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num },
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{ "Accounting Session Time", NULL, 0, 0, print_attr_num },
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{ "Accounting Input Packets", NULL, 0, 0, print_attr_num },
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{ "Accounting Output Packets", NULL, 0, 0, print_attr_num },
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{ "Accounting Termination Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num },
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{ "Accounting Multilink Session ID", NULL, 0, 0, print_attr_string },
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{ "Accounting Link Count", NULL, 0, 0, print_attr_num },
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{ "Accounting Input Giga", NULL, 0, 0, print_attr_num },
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{ "Accounting Output Giga", NULL, 0, 0, print_attr_num },
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{ "Unassigned", NULL, 0, 0, NULL }, /*54*/
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{ "Event Timestamp", NULL, 0, 0, print_attr_time },
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{ "Unassigned", NULL, 0, 0, NULL }, /*56*/
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{ "Unassigned", NULL, 0, 0, NULL }, /*57*/
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{ "Unassigned", NULL, 0, 0, NULL }, /*58*/
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{ "Unassigned", NULL, 0, 0, NULL }, /*59*/
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{ "CHAP challenge", NULL, 0, 0, print_attr_string },
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{ "NAS Port Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num },
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{ "Port Limit", NULL, 0, 0, print_attr_num },
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{ "Login LAT Port", NULL, 0, 0, print_attr_string }, /*63*/
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{ "Tunnel Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num },
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{ "Tunnel Medium", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num },
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{ "Tunnel Client End", NULL, 0, 0, print_attr_string },
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{ "Tunnel Server End", NULL, 0, 0, print_attr_string },
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{ "Accounting Tunnel connect", NULL, 0, 0, print_attr_string },
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{ "Tunnel Password", NULL, 0, 0, print_attr_string },
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{ "ARAP Password", NULL, 0, 0, print_attr_strange },
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{ "ARAP Feature", NULL, 0, 0, print_attr_strange },
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{ "ARAP Zone Acces", arap_zone, TAM_SIZE(arap_zone)-1, 1, print_attr_num }, /*72*/
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{ "ARAP Security", NULL, 0, 0, print_attr_string },
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{ "ARAP Security Data", NULL, 0, 0, print_attr_string },
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{ "Password Retry", NULL, 0, 0, print_attr_num },
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{ "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num },
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{ "Connect Info", NULL, 0, 0, print_attr_string },
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{ "Config Token", NULL, 0, 0, print_attr_string },
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{ "EAP Message", NULL, 0, 0, print_attr_string },
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{ "Message Authentication", NULL, 0, 0, print_attr_string }, /*80*/
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{ "Tunnel Private Group", NULL, 0, 0, print_attr_string },
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{ "Tunnel Assigned ID", NULL, 0, 0, print_attr_string },
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{ "Tunnel Preference", NULL, 0, 0, print_attr_num },
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{ "ARAP Challenge Response", NULL, 0, 0, print_attr_strange },
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{ "Accounting Interim Interval", NULL, 0, 0, print_attr_num },
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{ "Accounting Tunnel packets lost", NULL, 0, 0, print_attr_num }, /*86*/
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{ "NAS Port ID", NULL, 0, 0, print_attr_string },
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{ "Framed Pool", NULL, 0, 0, print_attr_string },
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{ "Unassigned", NULL, 0, 0, NULL },
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{ "Tunnel Client Authentication ID", NULL, 0, 0, print_attr_string },
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{ "Tunnel Server Authentication ID", NULL, 0, 0, print_attr_string },
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{ "Unassigned", NULL, 0, 0, NULL }, /*92*/
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{ "Unassigned", NULL, 0, 0, NULL } /*93*/
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};
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/*****************************/
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/* Print an attribute string */
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/* value pointed by 'data' */
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/* and 'length' size. */
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/*****************************/
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/* Returns nothing. */
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/*****************************/
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static void
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print_attr_string(register u_char *data, u_int length, u_short attr_code )
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{
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register u_int i;
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TCHECK2(data[0],length);
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switch(attr_code)
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{
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case TUNNEL_PASS:
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if (length < 3)
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{
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printf(" [|radius]");
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return;
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}
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if (*data && (*data <=0x1F) )
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|
printf("Tag %u, ",*data);
|
|
data++;
|
|
length--;
|
|
printf("Salt %u ",EXTRACT_16BITS(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 (*data <= 0x1F)
|
|
{
|
|
if (length < 1)
|
|
{
|
|
printf(" [|radius]");
|
|
return;
|
|
}
|
|
printf("Tag %u",*data);
|
|
data++;
|
|
length--;
|
|
}
|
|
break;
|
|
}
|
|
|
|
for (i=0; *data && i < length ; i++, data++)
|
|
printf("%c",(*data < 32 || *data > 128) ? '.' : *data );
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
/*
|
|
* print vendor specific attributes
|
|
*/
|
|
|
|
static void
|
|
print_vendor_attr(register 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;
|
|
TCHECK2(*data, 4);
|
|
vendor_id = EXTRACT_32BITS(data);
|
|
data+=4;
|
|
length-=4;
|
|
|
|
printf("Vendor: %s (%u)",
|
|
tok2str(smi_values,"Unknown",vendor_id),
|
|
vendor_id);
|
|
|
|
while (length >= 2) {
|
|
TCHECK2(*data, 2);
|
|
|
|
vendor_type = *(data);
|
|
vendor_length = *(data+1);
|
|
|
|
if (vendor_length < 2)
|
|
{
|
|
printf("\n\t Vendor Attribute: %u, Length: %u (bogus, must be >= 2)",
|
|
vendor_type,
|
|
vendor_length);
|
|
return;
|
|
}
|
|
if (vendor_length > length)
|
|
{
|
|
printf("\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;
|
|
TCHECK2(*data, vendor_length);
|
|
|
|
printf("\n\t Vendor Attribute: %u, Length: %u, Value: ",
|
|
vendor_type,
|
|
vendor_length);
|
|
for (idx = 0; idx < vendor_length ; idx++, data++)
|
|
printf("%c",(*data < 32 || *data > 128) ? '.' : *data );
|
|
length-=vendor_length;
|
|
}
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
|
|
/******************************/
|
|
/* Print an attribute numeric */
|
|
/* value pointed by 'data' */
|
|
/* and 'length' size. */
|
|
/******************************/
|
|
/* Returns nothing. */
|
|
/******************************/
|
|
static void
|
|
print_attr_num(register u_char *data, u_int length, u_short attr_code )
|
|
{
|
|
u_int8_t tag;
|
|
u_int32_t timeout;
|
|
|
|
if (length != 4)
|
|
{
|
|
printf("ERROR: length %u != 4", length);
|
|
return;
|
|
}
|
|
|
|
TCHECK2(data[0],4);
|
|
/* This attribute has standard values */
|
|
if (attr_type[attr_code].siz_subtypes)
|
|
{
|
|
static const char **table;
|
|
u_int32_t data_value;
|
|
table = attr_type[attr_code].subtypes;
|
|
|
|
if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) )
|
|
{
|
|
if (!*data)
|
|
printf("Tag[Unused]");
|
|
else
|
|
printf("Tag[%d]", *data);
|
|
data++;
|
|
data_value = EXTRACT_24BITS(data);
|
|
}
|
|
else
|
|
{
|
|
data_value = EXTRACT_32BITS(data);
|
|
}
|
|
if ( data_value <= (u_int32_t)(attr_type[attr_code].siz_subtypes - 1 +
|
|
attr_type[attr_code].first_subtype) &&
|
|
data_value >= attr_type[attr_code].first_subtype )
|
|
printf("%s",table[data_value]);
|
|
else
|
|
printf("#%u",data_value);
|
|
}
|
|
else
|
|
{
|
|
switch(attr_code) /* Be aware of special cases... */
|
|
{
|
|
case FRM_IPX:
|
|
if (EXTRACT_32BITS( data) == 0xFFFFFFFE )
|
|
printf("NAS Select");
|
|
else
|
|
printf("%d",EXTRACT_32BITS( data) );
|
|
break;
|
|
|
|
case SESSION_TIMEOUT:
|
|
case IDLE_TIMEOUT:
|
|
case ACCT_DELAY:
|
|
case ACCT_SESSION_TIME:
|
|
case ACCT_INT_INTERVAL:
|
|
timeout = EXTRACT_32BITS( data);
|
|
if ( timeout < 60 )
|
|
printf( "%02d secs", timeout);
|
|
else
|
|
{
|
|
if ( timeout < 3600 )
|
|
printf( "%02d:%02d min",
|
|
timeout / 60, timeout % 60);
|
|
else
|
|
printf( "%02d:%02d:%02d hours",
|
|
timeout / 3600, (timeout % 3600) / 60,
|
|
timeout % 60);
|
|
}
|
|
break;
|
|
|
|
case FRM_ATALK_LINK:
|
|
if (EXTRACT_32BITS(data) )
|
|
printf("%d",EXTRACT_32BITS(data) );
|
|
else
|
|
printf("Unnumbered" );
|
|
break;
|
|
|
|
case FRM_ATALK_NETWORK:
|
|
if (EXTRACT_32BITS(data) )
|
|
printf("%d",EXTRACT_32BITS(data) );
|
|
else
|
|
printf("NAS assigned" );
|
|
break;
|
|
|
|
case TUNNEL_PREFERENCE:
|
|
tag = *data;
|
|
data++;
|
|
if (tag == 0)
|
|
printf("Tag (Unused) %d",EXTRACT_24BITS(data) );
|
|
else
|
|
printf("Tag (%d) %d", tag, EXTRACT_24BITS(data) );
|
|
break;
|
|
|
|
default:
|
|
printf("%d",EXTRACT_32BITS( data) );
|
|
break;
|
|
|
|
} /* switch */
|
|
|
|
} /* if-else */
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
/*****************************/
|
|
/* Print an attribute IPv4 */
|
|
/* address value pointed by */
|
|
/* 'data' and 'length' size. */
|
|
/*****************************/
|
|
/* Returns nothing. */
|
|
/*****************************/
|
|
static void
|
|
print_attr_address(register u_char *data, u_int length, u_short attr_code )
|
|
{
|
|
if (length != 4)
|
|
{
|
|
printf("ERROR: length %u != 4", length);
|
|
return;
|
|
}
|
|
|
|
TCHECK2(data[0],4);
|
|
|
|
switch(attr_code)
|
|
{
|
|
case FRM_IPADDR:
|
|
case LOG_IPHOST:
|
|
if (EXTRACT_32BITS(data) == 0xFFFFFFFF )
|
|
printf("User Selected");
|
|
else
|
|
if (EXTRACT_32BITS(data) == 0xFFFFFFFE )
|
|
printf("NAS Select");
|
|
else
|
|
printf("%s",ipaddr_string(data));
|
|
break;
|
|
|
|
default:
|
|
printf("%s",ipaddr_string(data) );
|
|
break;
|
|
}
|
|
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
/*************************************/
|
|
/* 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(register u_char *data, u_int length, u_short attr_code _U_)
|
|
{
|
|
time_t attr_time;
|
|
char string[26];
|
|
|
|
if (length != 4)
|
|
{
|
|
printf("ERROR: length %u != 4", length);
|
|
return;
|
|
}
|
|
|
|
TCHECK2(data[0],4);
|
|
|
|
attr_time = EXTRACT_32BITS(data);
|
|
strlcpy(string, ctime(&attr_time), sizeof(string));
|
|
/* Get rid of the newline */
|
|
string[24] = '\0';
|
|
printf("%.24s", string);
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
/***********************************/
|
|
/* Print an attribute of 'strange' */
|
|
/* data format pointed by 'data' */
|
|
/* and 'length' size. */
|
|
/***********************************/
|
|
/* Returns nothing. */
|
|
/***********************************/
|
|
static void print_attr_strange(register u_char *data, u_int length, u_short attr_code)
|
|
{
|
|
u_short len_data;
|
|
|
|
switch(attr_code)
|
|
{
|
|
case ARAP_PASS:
|
|
if (length != 16)
|
|
{
|
|
printf("ERROR: length %u != 16", length);
|
|
return;
|
|
}
|
|
printf("User_challenge (");
|
|
TCHECK2(data[0],8);
|
|
len_data = 8;
|
|
PRINT_HEX(len_data, data);
|
|
printf(") User_resp(");
|
|
TCHECK2(data[0],8);
|
|
len_data = 8;
|
|
PRINT_HEX(len_data, data);
|
|
printf(")");
|
|
break;
|
|
|
|
case ARAP_FEATURES:
|
|
if (length != 14)
|
|
{
|
|
printf("ERROR: length %u != 14", length);
|
|
return;
|
|
}
|
|
TCHECK2(data[0],1);
|
|
if (*data)
|
|
printf("User can change password");
|
|
else
|
|
printf("User cannot change password");
|
|
data++;
|
|
TCHECK2(data[0],1);
|
|
printf(", Min password length: %d",*data);
|
|
data++;
|
|
printf(", created at: ");
|
|
TCHECK2(data[0],4);
|
|
len_data = 4;
|
|
PRINT_HEX(len_data, data);
|
|
printf(", expires in: ");
|
|
TCHECK2(data[0],4);
|
|
len_data = 4;
|
|
PRINT_HEX(len_data, data);
|
|
printf(", Current Time: ");
|
|
TCHECK2(data[0],4);
|
|
len_data = 4;
|
|
PRINT_HEX(len_data, data);
|
|
break;
|
|
|
|
case ARAP_CHALLENGE_RESP:
|
|
if (length < 8)
|
|
{
|
|
printf("ERROR: length %u != 8", length);
|
|
return;
|
|
}
|
|
TCHECK2(data[0],8);
|
|
len_data = 8;
|
|
PRINT_HEX(len_data, data);
|
|
break;
|
|
}
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
radius_attrs_print(register const u_char *attr, u_int length)
|
|
{
|
|
register const struct radius_attr *rad_attr = (struct radius_attr *)attr;
|
|
const char *attr_string;
|
|
|
|
while (length > 0)
|
|
{
|
|
if (length < 2)
|
|
goto trunc;
|
|
TCHECK(*rad_attr);
|
|
|
|
if (rad_attr->type > 0 && rad_attr->type < TAM_SIZE(attr_type))
|
|
attr_string = attr_type[rad_attr->type].name;
|
|
else
|
|
attr_string = "Unknown";
|
|
if (rad_attr->len < 2)
|
|
{
|
|
printf("\n\t %s Attribute (%u), length: %u (bogus, must be >= 2)",
|
|
attr_string,
|
|
rad_attr->type,
|
|
rad_attr->len);
|
|
return;
|
|
}
|
|
if (rad_attr->len > length)
|
|
{
|
|
printf("\n\t %s Attribute (%u), length: %u (bogus, goes past end of packet)",
|
|
attr_string,
|
|
rad_attr->type,
|
|
rad_attr->len);
|
|
return;
|
|
}
|
|
printf("\n\t %s Attribute (%u), length: %u, Value: ",
|
|
attr_string,
|
|
rad_attr->type,
|
|
rad_attr->len);
|
|
|
|
if (rad_attr->type < TAM_SIZE(attr_type))
|
|
{
|
|
if (rad_attr->len > 2)
|
|
{
|
|
if ( attr_type[rad_attr->type].print_func )
|
|
(*attr_type[rad_attr->type].print_func)(
|
|
((u_char *)(rad_attr+1)),
|
|
rad_attr->len - 2, rad_attr->type);
|
|
}
|
|
}
|
|
/* do we also want to see a hex dump ? */
|
|
if (vflag> 1)
|
|
print_unknown_data((u_char *)rad_attr+2,"\n\t ",(rad_attr->len)-2);
|
|
|
|
length-=(rad_attr->len);
|
|
rad_attr = (struct radius_attr *)( ((char *)(rad_attr))+rad_attr->len);
|
|
}
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|
|
|
|
|
|
void
|
|
radius_print(const u_char *dat, u_int length)
|
|
{
|
|
register const struct radius_hdr *rad;
|
|
u_int len, auth_idx;
|
|
|
|
TCHECK2(*dat, MIN_RADIUS_LEN);
|
|
rad = (struct radius_hdr *)dat;
|
|
len = EXTRACT_16BITS(&rad->len);
|
|
|
|
if (len < MIN_RADIUS_LEN)
|
|
{
|
|
printf(" [|radius]");
|
|
return;
|
|
}
|
|
|
|
if (len > length)
|
|
len = length;
|
|
|
|
if (vflag < 1) {
|
|
printf("RADIUS, %s (%u), id: 0x%02x length: %u",
|
|
tok2str(radius_command_values,"Unknown Command",rad->code),
|
|
rad->code,
|
|
rad->id,
|
|
len);
|
|
return;
|
|
}
|
|
else {
|
|
printf("RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ",
|
|
len,
|
|
tok2str(radius_command_values,"Unknown Command",rad->code),
|
|
rad->code,
|
|
rad->id);
|
|
|
|
for(auth_idx=0; auth_idx < 16; auth_idx++)
|
|
printf("%02x", rad->auth[auth_idx] );
|
|
}
|
|
|
|
if (len > MIN_RADIUS_LEN)
|
|
radius_attrs_print( dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN);
|
|
return;
|
|
|
|
trunc:
|
|
printf(" [|radius]");
|
|
}
|