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wireshark/packet-radius.c
Guy Harris a4e137f630 Remove more "CHECK_DISPLAY_AS_DATA()" calls and "pinfo->current_proto =" 
statements.

Move the setting of the Protocol column in various dissectors before
anything is fetched from the packet, and also clear the Info column at
that point in those and some other dissectors, so that if an exception
is thrown, the columns don't reflect the previous protocol.

svn path=/trunk/; revision=2932
2001-01-22 08:54:08 +00:00

794 lines
23 KiB
C
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/* packet-radius.c
* Routines for RADIUS packet disassembly
*
* $Id: packet-radius.c,v 1.24 2001/01/22 08:54:06 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Johan Feyaerts
* Copyright 1999 Johan Feyaerts
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <glib.h>
#include "packet.h"
#include "resolv.h"
#include "packet-diameter.h"
static int proto_radius = -1;
static int hf_radius_length = -1;
static int hf_radius_code = -1;
static int hf_radius_id =-1;
static gint ett_radius = -1;
static gint ett_radius_avp = -1;
#define UDP_PORT_RADIUS 1645
#define UDP_PORT_RADIUS_NEW 1812
#define UDP_PORT_RADACCT 1646
#define UDP_PORT_RADACCT_NEW 1813
typedef struct _e_radiushdr {
guint8 rh_code;
guint8 rh_ident;
guint16 rh_pktlength;
} e_radiushdr;
typedef struct _e_avphdr {
guint8 avp_type;
guint8 avp_length;
} e_avphdr;
typedef struct _value_value_pair {
guint16 val1;
guint16 val2;
} value_value_pair;
#define RADIUS_ACCESS_REQUEST 1
#define RADIUS_ACCESS_ACCEPT 2
#define RADIUS_ACCESS_REJECT 3
#define RADIUS_ACCOUNTING_REQUEST 4
#define RADIUS_ACCOUNTING_RESPONSE 5
#define RADIUS_ACCESS_CHALLENGE 11
#define RADIUS_STATUS_SERVER 12
#define RADIUS_STATUS_CLIENT 13
#define RADIUS_RESERVED 255
#define RD_TP_USER_NAME 1
#define RD_TP_USER_PASSWORD 2
#define RD_TP_CHAP_PASSWORD 3
#define RD_TP_NAS_IP_ADDRESS 4
#define RD_TP_NAS_PORT 5
#define RD_TP_SERVICE_TYPE 6
#define RD_TP_FRAMED_PROTOCOL 7
#define RD_TP_FRAMED_IP_ADDRESS 8
#define RD_TP_FRAMED_IP_NETMASK 9
#define RD_TP_FRAMED_ROUTING 10
#define RD_TP_FILTER_ID 11
#define RD_TP_FRAMED_MTU 12
#define RD_TP_FRAMED_COMPRESSION 13
#define RD_TP_LOGIN_IP_HOST 14
#define RD_TP_LOGIN_SERVICE 15
#define RD_TP_LOGIN_TCP_PORT 16
#define RD_TP_UNASSIGNED 17
#define RD_TP_REPLY_MESSAGE 18
#define RD_TP_CALLBACK_NUMBER 19
#define RD_TP_CALLBACK_ID 20
#define RD_TP_UNASSIGNED2 21
#define RD_TP_FRAMED_ROUTE 22
#define RD_TP_FRAMED_IPX_NETWORK 23
#define RD_TP_STATE 24
#define RD_TP_CLASS 25
#define RD_TP_VENDOR_SPECIFIC 26
#define RD_TP_SESSION_TIMEOUT 27
#define RD_TP_IDLE_TIMEOUT 28
#define RD_TP_TERMINATING_ACTION 29
#define RD_TP_CALLED_STATION_ID 30
#define RD_TP_CALLING_STATION_ID 31
#define RD_TP_NAS_IDENTIFIER 32
#define RD_TP_PROXY_STATE 33
#define RD_TP_LOGIN_LAT_SERVICE 34
#define RD_TP_LOGIN_LAT_NODE 35
#define RD_TP_LOGIN_LAT_GROUP 36
#define RD_TP_FRAMED_APPLETALK_LINK 37
#define RD_TP_FRAMED_APPLETALK_NETWORK 38
#define RD_TP_FRAMED_APPLETALK_ZONE 39
#define RD_TP_ACCT_STATUS_TYPE 40
#define RD_TP_ACCT_DELAY_TIME 41
#define RD_TP_ACCT_INPUT_OCTETS 42
#define RD_TP_ACCT_OUTPUT_OCTETS 43
#define RD_TP_ACCT_SESSION_ID 44
#define RD_TP_ACCT_AUTHENTIC 45
#define RD_TP_ACCT_SESSION_TIME 46
#define RD_TP_ACCT_INPUT_PACKETS 47
#define RD_TP_ACCT_OUTPUT_PACKETS 48
#define RD_TP_ACCT_TERMINATE_CAUSE 49
#define RD_TP_ACCT_MULTI_SESSION_ID 50
#define RD_TP_ACCT_LINK_COUNT 51
#define RD_TP_CHAP_CHALLENGE 60
#define RD_TP_NAS_PORT_TYPE 61
#define RD_TP_PORT_LIMIT 62
#define RD_TP_LOGIN_LAT_PORT 63
#define RD_TP_TUNNEL_TYPE 64
#define RD_TP_TUNNEL_MEDIUM_TYPE 65
#define RD_TP_TUNNEL_CLIENT_ENDPOINT 66
#define RD_TP_TUNNEL_SERVER_ENDPOINT 67
#define RD_TP_TUNNEL_PASSWORD 69
#define RD_TP_TUNNEL_ASSIGNMENT_ID 82
#define AUTHENTICATOR_LENGTH 16
#define RD_HDR_LENGTH 4
#define RADIUS_STRING 1
#define RADIUS_BINSTRING 2
#define RADIUS_INTEGER4 3
#define RADIUS_IP_ADDRESS 4
#define RADIUS_SERVICE_TYPE 5
#define RADIUS_FRAMED_PROTOCOL 6
#define RADIUS_FRAMED_ROUTING 7
#define RADIUS_FRAMED_COMPRESSION 8
#define RADIUS_LOGIN_SERVICE 9
#define RADIUS_UNKNOWN 10
#define RADIUS_IPX_ADDRESS 11
#define RADIUS_TERMINATING_ACTION 12
#define RADIUS_ACCOUNTING_STATUS_TYPE 13
#define RADIUS_ACCT_AUTHENTIC 14
#define RADIUS_ACCT_TERMINATE_CAUSE 15
#define RADIUS_NAS_PORT_TYPE 16
#define RADIUS_TUNNEL_TYPE 17
#define RADIUS_TUNNEL_MEDIUM_TYPE 18
#define RADIUS_STRING_TAGGED 19
#define RADIUS_VENDOR_SPECIFIC 20
static value_string radius_vals[] = {
{RADIUS_ACCESS_REQUEST, "Access Request"},
{RADIUS_ACCESS_ACCEPT, "Access Accept"},
{RADIUS_ACCESS_REJECT, "Access Reject"},
{RADIUS_ACCOUNTING_REQUEST, "Accounting Request"},
{RADIUS_ACCOUNTING_RESPONSE, "Accounting Response"},
{RADIUS_ACCESS_CHALLENGE, "Accounting challenge"},
{RADIUS_STATUS_SERVER, "StatusServer"},
{RADIUS_STATUS_CLIENT, "StatusClient"},
{RADIUS_RESERVED, "Reserved"},
{0, NULL}};
static value_string radius_service_type_vals[]=
{{1, "Login"},
{2, "Framed"},
{3, "Callback Login"},
{4, "Callback Framed"},
{5, "Outbound"},
{6, "Administrative"},
{7, "NAS Prompt"},
{8, "Authenticate Only"},
{9, "Callback NAS Prompt"},
{10, "Call Check"},
{0,NULL}};
/*
* These are SMI Network Management Private Enterprise Codes for
* organizations; see
*
* http://www.isi.edu/in-notes/iana/assignments/enterprise-numbers
*
* for a list.
*/
static value_string radius_vendor_specific_vendors[]=
{{5, "ACC"},
{9,"Cisco"},
{166,"Shiva"},
{307,"Livingston"},
{429,"3Com"},
{529,"Ascend"},
{1584,"Bay Networks"},
{0,NULL}};
static value_string radius_framed_protocol_vals[]=
{{1, "PPP"},
{2, "SLIP"},
{3, "Appletalk Remote Access Protocol (ARAP)"},
{4, "Gandalf proprietary Singlelink/Multilink Protocol"},
{5, "Xylogics proprietary IPX/SLIP"},
{6, "X.75 Synchronous"},
{0,NULL}};
static value_string radius_framed_routing_vals[]=
{{1, "Send Routing Packets"},
{2, "Listen for routing packets"},
{3, "Send and Listen"},
{0,"None"},
{0,NULL}};
static value_string radius_framed_compression_vals[]=
{{1, "VJ TCP/IP Header Compression"},
{2, "IPX Header Compression"},
{3, "Stac-LZS compression"},
{0, "None"},
{0,NULL}};
static value_string radius_login_service_vals[]=
{{1, "Rlogin"},
{2, "TCP Clear"},
{3, "Portmaster"},
{4, "LAT"},
{5, "X.25-PAD"},
{6, "X.25T3POS"},
{8, "TCP Clear Quit"},
{0, "Telnet"},
{0,NULL}};
static value_string radius_terminating_action_vals[]=
{{1, "RADIUS-Request"},
{0, "Default"},
{0,NULL}};
static value_string radius_accounting_status_type_vals[]=
{{1, "Start"},
{2, "Stop"},
{7,"Accounting-On"},
{8,"Accounting-Off"},
{0,NULL}};
static value_string radius_accounting_authentication_vals[]=
{{1, "Radius"},
{2, "Local"},
{7,"Remote"},
{0,NULL}};
static value_string radius_acct_terminate_cause_vals[]=
{{1, "User Request"},
{2, "Lost Carrier"},
{3,"Lost Service"},
{4, "Idle Timeout"},
{5,"Session Timeout"},
{6, "Admin Reset"},
{7, "Admin Reboot"},
{8, "Port Error"},
{9, "NAS Error"},
{10, "NAS Request"},
{11,"NAS Reboot"},
{12, "Port Unneeded"},
{13, "Port Preempted"},
{14,"Port Suspended"},
{15,"Service Unavailable"},
{16,"Callback"},
{17, "User Error"},
{18,"Host Request"},
{0,NULL}};
static value_string radius_tunnel_type_vals[]=
{{1,"PPTP"},
{2,"L2F"},
{3,"L2TP"},
{4,"ATMP"},
{5,"VTP"},
{6,"AH"},
{7,"IP-IP-Encap"},
{8,"MIN-IP-IP"},
{9,"ESP"},
{10,"GRE"},
{11,"DVS"},
{12,"IP-IP"},
{0,NULL}};
static value_string radius_tunnel_medium_type_vals[]=
{{1,"IPv4"},
{2,"IPv6"},
{3,"NSAP"},
{4,"HDLC"},
{5,"BBN"},
{6,"IEEE-802"},
{7,"E-163"},
{8,"E-164"},
{9,"F-69"},
{10,"X-121"},
{11,"IPX"},
{12,"Appletalk"},
{13,"Decnet4"},
{14,"Vines"},
{15,"E-164-NSAP"},
{0,NULL}};
static value_string radius_nas_port_type_vals[]=
{{0, "Async"},
{1, "Sync"},
{2,"ISDN Sync"},
{3, "ISDN Async V.120"},
{4,"ISDN Async V.110"},
{5, "Virtual"},
{6, "PIAFS"},
{7, "HDLC Clear Channel"},
{8, "X.25"},
{9,"X.75"},
{10, "G.3 Fax"},
{11,"SDSL"},
{12, "ADSL-CAP"},
{13, "ADSL-DMT"},
{14,"IDSL - ISDN"},
{0,NULL}};
static value_value_pair radius_printinfo[] = {
{ RD_TP_USER_NAME, RADIUS_STRING },
{ RD_TP_USER_PASSWORD,RADIUS_BINSTRING },
{ RD_TP_CHAP_PASSWORD, RADIUS_BINSTRING },
{ RD_TP_NAS_IP_ADDRESS, RADIUS_IP_ADDRESS },
{ RD_TP_NAS_PORT, RADIUS_INTEGER4},
{ RD_TP_SERVICE_TYPE, RADIUS_SERVICE_TYPE},
{ RD_TP_FRAMED_PROTOCOL, RADIUS_FRAMED_PROTOCOL},
{ RD_TP_FRAMED_IP_ADDRESS, RADIUS_IP_ADDRESS},
{ RD_TP_FRAMED_IP_NETMASK, RADIUS_IP_ADDRESS},
{ RD_TP_FRAMED_ROUTING, RADIUS_FRAMED_ROUTING},
{ RD_TP_FILTER_ID, RADIUS_STRING},
{ RD_TP_FRAMED_MTU, RADIUS_INTEGER4},
{ RD_TP_FRAMED_COMPRESSION, RADIUS_FRAMED_COMPRESSION},
{ RD_TP_LOGIN_IP_HOST, RADIUS_IP_ADDRESS},
{ RD_TP_LOGIN_SERVICE, RADIUS_LOGIN_SERVICE},
{ RD_TP_LOGIN_TCP_PORT, RADIUS_INTEGER4},
{ RD_TP_UNASSIGNED, RADIUS_UNKNOWN},
{ RD_TP_REPLY_MESSAGE, RADIUS_STRING},
{ RD_TP_CALLBACK_NUMBER, RADIUS_BINSTRING},
{ RD_TP_CALLBACK_ID, RADIUS_BINSTRING},
{ RD_TP_UNASSIGNED2, RADIUS_UNKNOWN},
{ RD_TP_FRAMED_ROUTE, RADIUS_STRING},
{ RD_TP_FRAMED_IPX_NETWORK, RADIUS_IPX_ADDRESS},
{ RD_TP_STATE, RADIUS_BINSTRING},
{ RD_TP_CLASS, RADIUS_BINSTRING},
{ RD_TP_VENDOR_SPECIFIC, RADIUS_VENDOR_SPECIFIC},
{ RD_TP_SESSION_TIMEOUT, RADIUS_INTEGER4},
{ RD_TP_IDLE_TIMEOUT, RADIUS_INTEGER4},
{ RD_TP_TERMINATING_ACTION, RADIUS_TERMINATING_ACTION},
{ RD_TP_CALLED_STATION_ID, RADIUS_BINSTRING},
{ RD_TP_CALLING_STATION_ID, RADIUS_BINSTRING},
{ RD_TP_NAS_IDENTIFIER, RADIUS_BINSTRING},
{ RD_TP_PROXY_STATE, RADIUS_BINSTRING},
{ RD_TP_LOGIN_LAT_SERVICE, RADIUS_BINSTRING},
{ RD_TP_LOGIN_LAT_NODE, RADIUS_BINSTRING},
{ RD_TP_LOGIN_LAT_GROUP, RADIUS_BINSTRING},
{ RD_TP_FRAMED_APPLETALK_LINK, RADIUS_INTEGER4},
{ RD_TP_FRAMED_APPLETALK_NETWORK, RADIUS_INTEGER4},
{ RD_TP_FRAMED_APPLETALK_ZONE, RADIUS_BINSTRING},
{ RD_TP_ACCT_STATUS_TYPE, RADIUS_ACCOUNTING_STATUS_TYPE},
{ RD_TP_ACCT_DELAY_TIME, RADIUS_INTEGER4},
{ RD_TP_ACCT_INPUT_OCTETS, RADIUS_INTEGER4},
{ RD_TP_ACCT_OUTPUT_OCTETS, RADIUS_INTEGER4},
{ RD_TP_ACCT_SESSION_ID, RADIUS_STRING},
{ RD_TP_ACCT_AUTHENTIC, RADIUS_ACCT_AUTHENTIC},
{ RD_TP_ACCT_SESSION_TIME, RADIUS_INTEGER4},
{ RD_TP_ACCT_INPUT_PACKETS, RADIUS_INTEGER4},
{ RD_TP_ACCT_OUTPUT_PACKETS, RADIUS_INTEGER4},
{ RD_TP_ACCT_TERMINATE_CAUSE, RADIUS_ACCT_TERMINATE_CAUSE},
{ RD_TP_ACCT_MULTI_SESSION_ID, RADIUS_STRING},
{ RD_TP_ACCT_LINK_COUNT, RADIUS_INTEGER4},
{ RD_TP_CHAP_CHALLENGE, RADIUS_BINSTRING},
{ RD_TP_NAS_PORT_TYPE, RADIUS_NAS_PORT_TYPE},
{ RD_TP_PORT_LIMIT, RADIUS_INTEGER4},
{ RD_TP_LOGIN_LAT_PORT, RADIUS_BINSTRING},
{ RD_TP_TUNNEL_TYPE, RADIUS_TUNNEL_TYPE},
{ RD_TP_TUNNEL_MEDIUM_TYPE, RADIUS_TUNNEL_MEDIUM_TYPE},
{ RD_TP_TUNNEL_CLIENT_ENDPOINT, RADIUS_STRING_TAGGED},
{ RD_TP_TUNNEL_SERVER_ENDPOINT, RADIUS_STRING_TAGGED},
{ RD_TP_TUNNEL_PASSWORD, RADIUS_STRING_TAGGED},
{ RD_TP_TUNNEL_ASSIGNMENT_ID, RADIUS_STRING_TAGGED},
{0,0},
};
static value_string radius_attrib_type_vals[] = {
{ RD_TP_USER_NAME, "User Name"},
{ RD_TP_USER_PASSWORD, "User Password"},
{ RD_TP_CHAP_PASSWORD, "Chap Password"},
{ RD_TP_NAS_IP_ADDRESS, "NAS IP Address"},
{ RD_TP_NAS_PORT, "NAS Port"},
{ RD_TP_SERVICE_TYPE, "Service Type"},
{ RD_TP_FRAMED_PROTOCOL, "Framed Protocol"},
{ RD_TP_FRAMED_IP_ADDRESS, "Framed IP Address"},
{ RD_TP_FRAMED_IP_NETMASK, "Framed IP Netmask"},
{ RD_TP_FRAMED_ROUTING, "Framed Routing"},
{ RD_TP_FILTER_ID, "Filter Id"},
{ RD_TP_FRAMED_MTU, "Framed MTU"},
{ RD_TP_FRAMED_COMPRESSION, "Framed Compression"},
{ RD_TP_LOGIN_IP_HOST, "Login IP Host"},
{ RD_TP_LOGIN_SERVICE, "Login Service"},
{ RD_TP_LOGIN_TCP_PORT, "Login TCP Port"},
{ RD_TP_UNASSIGNED, "Unassigned"},
{ RD_TP_REPLY_MESSAGE, "Reply Message"},
{ RD_TP_CALLBACK_NUMBER, "Callback Number"},
{ RD_TP_CALLBACK_ID, "Callback Id"},
{ RD_TP_UNASSIGNED2, "Unassigned"},
{ RD_TP_FRAMED_ROUTE, "Framed Route"},
{ RD_TP_FRAMED_IPX_NETWORK, "Framed IPX network"},
{ RD_TP_STATE, "State"},
{ RD_TP_CLASS, "Class"},
{ RD_TP_VENDOR_SPECIFIC, "Vendor Specific" },
{ RD_TP_SESSION_TIMEOUT, "Session Timeout"},
{ RD_TP_IDLE_TIMEOUT, "Idle Timeout"},
{ RD_TP_TERMINATING_ACTION, "Terminating Action"},
{ RD_TP_CALLED_STATION_ID, "Called Station Id"},
{ RD_TP_CALLING_STATION_ID, "Calling Station Id"},
{ RD_TP_NAS_IDENTIFIER, "NAS identifier"},
{ RD_TP_PROXY_STATE, "Proxy State"},
{ RD_TP_LOGIN_LAT_SERVICE, "Login LAT Service"},
{ RD_TP_LOGIN_LAT_NODE, "Login LAT Node"},
{ RD_TP_LOGIN_LAT_GROUP, "Login LAT Group"},
{ RD_TP_FRAMED_APPLETALK_LINK, "Framed Appletalk Link"},
{ RD_TP_FRAMED_APPLETALK_NETWORK, "Framed Appletalk Network"},
{ RD_TP_FRAMED_APPLETALK_ZONE, "Framed Appletalk Zone"},
{ RD_TP_ACCT_STATUS_TYPE, "Acct Status Type"},
{ RD_TP_ACCT_DELAY_TIME, "Acct Delay Time"},
{ RD_TP_ACCT_INPUT_OCTETS, "Acct Input Octets"},
{ RD_TP_ACCT_OUTPUT_OCTETS, "Acct Output Octets"},
{ RD_TP_ACCT_SESSION_ID, "Acct Session Id"},
{ RD_TP_ACCT_AUTHENTIC, "Acct Authentic"},
{ RD_TP_ACCT_SESSION_TIME, "Acct Session Time"},
{ RD_TP_ACCT_INPUT_PACKETS, "Acct Input Packets"},
{ RD_TP_ACCT_OUTPUT_PACKETS, "Acct Output Packets"},
{ RD_TP_ACCT_TERMINATE_CAUSE, "Acct Terminate Cause"},
{ RD_TP_ACCT_MULTI_SESSION_ID, "Acct Multi Session Id"},
{ RD_TP_ACCT_LINK_COUNT, "Acct Link Count"},
{ RD_TP_CHAP_CHALLENGE, "Chap Challenge"},
{ RD_TP_NAS_PORT_TYPE, "NAS Port Type"},
{ RD_TP_PORT_LIMIT, "Port Limit"},
{ RD_TP_LOGIN_LAT_PORT, "Login LAT Port"},
{ RD_TP_TUNNEL_TYPE, "Tunnel Type"},
{ RD_TP_TUNNEL_MEDIUM_TYPE, "Tunnel Medium Type"},
{ RD_TP_TUNNEL_CLIENT_ENDPOINT, "Tunnel Client Endpoint"},
{ RD_TP_TUNNEL_SERVER_ENDPOINT, "Tunnel Server Endpoint"},
{ RD_TP_TUNNEL_PASSWORD, "Tunnel Password"},
{ RD_TP_TUNNEL_ASSIGNMENT_ID, "Tunnel Assignment ID"},
{0,NULL},
};
guint32 match_numval(guint32 val, const value_value_pair *vs)
{
guint32 i = 0;
while (vs[i].val1) {
if (vs[i].val1 == val)
return(vs[i].val2);
i++;
}
return(0);
}
static gchar textbuffer[2000];
gchar *rdconvertbufftostr(gchar *dest,guint8 length,const guint8 *pd)
{
/*converts the raw buffer into printable text */
guint32 i;
guint32 totlen=0;
dest[0]='"';
dest[1]=0;
totlen=1;
for (i=0; i < (guint32)length; i++)
{
if( isalnum((int)pd[i])||ispunct((int)pd[i])
||((int)pd[i]==' ')) {
dest[totlen]=(gchar)pd[i];
totlen++;
}
else
{
sprintf(&(dest[totlen]), "\\%03u", pd[i]);
totlen=totlen+strlen(&(dest[totlen]));
}
}
dest[totlen]='"';
dest[totlen+1]=0;
return dest;
}
gchar *rd_match_strval(guint32 val, const value_string *vs) {
return val_to_str(val, vs, "Undefined (%u)");
}
gchar *rd_value_to_str(e_avphdr *avph,const u_char *pd, int offset)
{
int print_type;
gchar *cont;
guint32 intval;
value_string *valstrarr;
/* prints the values of the attribute value pairs into a text buffer */
print_type=match_numval(avph->avp_type,radius_printinfo);
intval=pntohl(&(pd[offset+2]));
/* Default begin */
strcpy(textbuffer,"Value:");
cont=&textbuffer[strlen(textbuffer)];
switch(print_type)
{
case( RADIUS_STRING ):
case( RADIUS_BINSTRING ):
rdconvertbufftostr(cont,avph->avp_length-2,&(pd[offset+2]));
break;
case( RADIUS_INTEGER4 ):
sprintf(cont,"%u", intval);
break;
case( RADIUS_IP_ADDRESS ):
sprintf(cont,"%u.%u.%u.%u",(guint8)pd[offset+2],
(guint8)pd[offset+3],(guint8)pd[offset+4],
(guint8)pd[offset+5]);
break;
case( RADIUS_SERVICE_TYPE ):
valstrarr=radius_service_type_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_FRAMED_PROTOCOL ):
valstrarr= radius_framed_protocol_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_FRAMED_ROUTING ):
valstrarr=radius_framed_routing_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_FRAMED_COMPRESSION ):
valstrarr=radius_framed_compression_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_LOGIN_SERVICE ):
valstrarr=radius_login_service_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_IPX_ADDRESS ):
sprintf(cont,"%u:%u:%u:%u",(guint8)pd[offset+2],
(guint8)pd[offset+3],(guint8)pd[offset+4],
(guint8)pd[offset+5]);
case( RADIUS_TERMINATING_ACTION ):
valstrarr=radius_terminating_action_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_ACCOUNTING_STATUS_TYPE ):
valstrarr=radius_accounting_status_type_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_ACCT_AUTHENTIC ):
valstrarr=radius_accounting_authentication_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_ACCT_TERMINATE_CAUSE ):
valstrarr=radius_acct_terminate_cause_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_NAS_PORT_TYPE ):
valstrarr=radius_nas_port_type_vals;
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_TUNNEL_TYPE ):
valstrarr=radius_tunnel_type_vals;
/* Tagged ? */
if (intval >> 24) {
sprintf(textbuffer, "Tag:%d, Value:%s",
intval >> 24,
rd_match_strval(intval & 0xffffff,valstrarr));
break;
}
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_TUNNEL_MEDIUM_TYPE ):
valstrarr=radius_tunnel_medium_type_vals;
/* Tagged ? */
if (intval >> 24) {
sprintf(textbuffer, "Tag:%d, Value:%s",
intval >> 24,
rd_match_strval(intval & 0xffffff,valstrarr));
break;
}
strcpy(cont,rd_match_strval(intval,valstrarr));
break;
case( RADIUS_STRING_TAGGED ):
/* Tagged ? */
if (pd[offset+2] <= 0x1f) {
sprintf(textbuffer, "Tag:%d, Value:",
pd[offset+2]);
cont=&textbuffer[strlen(textbuffer)];
rdconvertbufftostr(cont,avph->avp_length-3,
&(pd[offset+3]));
break;
}
rdconvertbufftostr(cont,avph->avp_length-2,
&(pd[offset+2]));
break;
case ( RADIUS_VENDOR_SPECIFIC ):
valstrarr=radius_vendor_specific_vendors;
sprintf(textbuffer,"Vendor:%s, Value:",
rd_match_strval(intval,valstrarr));
cont=&textbuffer[strlen(textbuffer)];
rdconvertbufftostr(cont,avph->avp_length-6,&(pd[offset+6]));
break;
case( RADIUS_UNKNOWN ):
default:
strcpy(textbuffer,"Unknown Value Type");
break;
}
if (cont == textbuffer) {
strcpy(cont,"Unknown Value");
}
return textbuffer;
}
void dissect_attribute_value_pairs(const u_char *pd, int offset, frame_data
*fd, proto_tree *tree, int avplength)
{
/* adds the attribute value pairs to the tree */
e_avphdr avph;
gchar *avptpstrval;
gchar *valstr;
if (avplength==0)
{
proto_tree_add_text(tree, NullTVB,offset,0,"No Attribute Value Pairs Found");
return;
}
while (avplength > 0 )
{
memcpy(&avph,&pd[offset],sizeof(e_avphdr));
avplength=avplength-avph.avp_length;
avptpstrval=match_strval(avph.avp_type, radius_attrib_type_vals);
if (avptpstrval == NULL) avptpstrval="Unknown Type";
valstr=rd_value_to_str(&avph, pd, offset);
if (!BYTES_ARE_IN_FRAME(offset, avph.avp_length)) {
break;
}
proto_tree_add_text(tree, NullTVB,offset,avph.avp_length,
"t:%s(%d) l:%d, %s",
avptpstrval,avph.avp_type,avph.avp_length,valstr);
offset=offset+avph.avp_length;
if (avph.avp_length == 0) {
break;
}
}
}
static void dissect_radius(const u_char *pd, int offset, frame_data *fd,
proto_tree
*tree)
{
proto_tree *radius_tree,*avptree;
proto_item *ti,*avptf;
int rhlength;
int rhcode;
int rhident;
int avplength,hdrlength, offsetavp;
e_radiushdr rh;
gchar *codestrval;
if (pd[offset] == 254) {
/* We have a diameter packet */
dissect_diameter(pd, offset, fd, tree);
return;
}
memcpy(&rh,&pd[offset],sizeof(e_radiushdr));
rhcode= (int)rh.rh_code;
rhident= (int)rh.rh_ident;
rhlength= (int)ntohs(rh.rh_pktlength);
codestrval= match_strval(rhcode,radius_vals);
if (codestrval==NULL)
{
codestrval="Unknown Packet";
}
if (check_col(fd, COL_PROTOCOL))
col_set_str(fd, COL_PROTOCOL, "RADIUS");
if (check_col(fd, COL_INFO))
{
sprintf(textbuffer,"%s(%d) (id=%d, l=%d)",
codestrval, rhcode, rhident, rhlength);
col_add_fstr(fd,COL_INFO,textbuffer);
}
if (tree)
{
ti = proto_tree_add_item(tree,proto_radius, NullTVB, offset, rhlength,
FALSE);
radius_tree = proto_item_add_subtree(ti, ett_radius);
proto_tree_add_uint_format(radius_tree,hf_radius_code, NullTVB, offset, 1,
rh.rh_code, "Packet code:0x%01x (%s)",rhcode, codestrval);
proto_tree_add_uint_format(radius_tree,hf_radius_id, NullTVB, offset+1, 1,
rh.rh_ident, "Packet identifier: 0x%01x (%d)",
rhident,rhident);
proto_tree_add_uint_format(radius_tree, hf_radius_length, NullTVB,
offset+2, 2,
(guint16)rhlength,
"Packet length: 0x%02x(%d)",rhlength,rhlength);
proto_tree_add_text(radius_tree, NullTVB, offset+4,
AUTHENTICATOR_LENGTH,
"Authenticator");
hdrlength=RD_HDR_LENGTH+AUTHENTICATOR_LENGTH;
avplength= rhlength -hdrlength;
offsetavp=offset+hdrlength;
/* list the attribute value pairs */
avptf = proto_tree_add_text(radius_tree,
NullTVB,offset+hdrlength,avplength,
"Attribute value pairs");
avptree = proto_item_add_subtree(avptf, ett_radius_avp);
if (avptree !=NULL)
{
dissect_attribute_value_pairs( pd,
offsetavp,fd,avptree,avplength);
}
}
}
/* registration with the filtering engine */
void
proto_register_radius(void)
{
static hf_register_info hf[] = {
{ &hf_radius_code,
{ "Code","radius.code", FT_UINT8, BASE_DEC, NULL, 0x0,
"" }},
{ &hf_radius_id,
{ "Identifier", "radius.id", FT_UINT8, BASE_DEC, NULL, 0x0,
"" }},
{ &hf_radius_length,
{ "Length","radius.length", FT_UINT16, BASE_DEC, NULL, 0x0,
"" }}
};
static gint *ett[] = {
&ett_radius,
&ett_radius_avp,
};
proto_radius = proto_register_protocol("Radius Protocol", "RADIUS",
"radius");
proto_register_field_array(proto_radius, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_radius(void)
{
old_dissector_add("udp.port", UDP_PORT_RADIUS, dissect_radius,
proto_radius);
old_dissector_add("udp.port", UDP_PORT_RADIUS_NEW, dissect_radius,
proto_radius);
old_dissector_add("udp.port", UDP_PORT_RADACCT, dissect_radius,
proto_radius);
old_dissector_add("udp.port", UDP_PORT_RADACCT_NEW, dissect_radius,
proto_radius);
}
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