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author | Anas Nashif <anas.nashif@intel.com> | 2012-11-06 16:27:42 -0800 |
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committer | Anas Nashif <anas.nashif@intel.com> | 2012-11-06 16:27:42 -0800 |
commit | bbace1d4c8912a4a02cc0322e2cbed1901c62d96 (patch) | |
tree | c9c56c419b556c51ba05eb6d9f7f37fc1791f1c5 /print-radius.c | |
download | tcpdump-bbace1d4c8912a4a02cc0322e2cbed1901c62d96.tar.gz tcpdump-bbace1d4c8912a4a02cc0322e2cbed1901c62d96.tar.bz2 tcpdump-bbace1d4c8912a4a02cc0322e2cbed1901c62d96.zip |
Imported Upstream version 4.3.0upstream/4.3.0
Diffstat (limited to 'print-radius.c')
-rw-r--r-- | print-radius.c | 937 |
1 files changed, 937 insertions, 0 deletions
diff --git a/print-radius.c b/print-radius.c new file mode 100644 index 0000000..44f0c7f --- /dev/null +++ b/print-radius.c @@ -0,0 +1,937 @@ +/* + * Copyright (C) 2000 Alfredo Andres Omella. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. The names of the authors may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ +/* + * Radius printer routines as specified on: + * + * RFC 2865: + * "Remote Authentication Dial In User Service (RADIUS)" + * + * RFC 2866: + * "RADIUS Accounting" + * + * RFC 2867: + * "RADIUS Accounting Modifications for Tunnel Protocol Support" + * + * RFC 2868: + * "RADIUS Attributes for Tunnel Protocol Support" + * + * RFC 2869: + * "RADIUS Extensions" + * + * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15 + * + * TODO: Among other things to print ok MacIntosh and Vendor values + */ + +#ifndef lint +static const char rcsid[] _U_ = + "$Id: print-radius.c,v 1.28 2005-09-26 01:01:55 guy Exp $"; +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tcpdump-stdinc.h> + +#include <string.h> + +#include <stdio.h> + +#include "interface.h" +#include "addrtoname.h" +#include "extract.h" +#include "oui.h" + +#define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) ) + +#define PRINT_HEX(bytes_len, ptr_data) \ + while(bytes_len) \ + { \ + printf("%02X", *ptr_data ); \ + ptr_data++; \ + bytes_len--; \ + } + + +/* Radius packet codes */ +#define RADCMD_ACCESS_REQ 1 /* Access-Request */ +#define RADCMD_ACCESS_ACC 2 /* Access-Accept */ +#define RADCMD_ACCESS_REJ 3 /* Access-Reject */ +#define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */ +#define RADCMD_ACCOUN_RES 5 /* Accounting-Response */ +#define RADCMD_ACCESS_CHA 11 /* Access-Challenge */ +#define RADCMD_STATUS_SER 12 /* Status-Server */ +#define RADCMD_STATUS_CLI 13 /* Status-Client */ +#define RADCMD_RESERVED 255 /* Reserved */ + +static struct tok radius_command_values[] = { + { RADCMD_ACCESS_REQ, "Access Request" }, + { RADCMD_ACCESS_ACC, "Access Accept" }, + { RADCMD_ACCESS_REJ, "Access Reject" }, + { RADCMD_ACCOUN_REQ, "Accounting Request" }, + { RADCMD_ACCOUN_RES, "Accounting Response" }, + { RADCMD_ACCESS_CHA, "Access Challenge" }, + { RADCMD_STATUS_SER, "Status Server" }, + { RADCMD_STATUS_CLI, "Status Client" }, + { RADCMD_RESERVED, "Reserved" }, + { 0, NULL} +}; + +/********************************/ +/* Begin Radius Attribute types */ +/********************************/ +#define SERV_TYPE 6 +#define FRM_IPADDR 8 +#define LOG_IPHOST 14 +#define LOG_SERVICE 15 +#define FRM_IPX 23 +#define SESSION_TIMEOUT 27 +#define IDLE_TIMEOUT 28 +#define FRM_ATALK_LINK 37 +#define FRM_ATALK_NETWORK 38 + +#define ACCT_DELAY 41 +#define ACCT_SESSION_TIME 46 + +#define TUNNEL_TYPE 64 +#define TUNNEL_MEDIUM 65 +#define TUNNEL_CLIENT_END 66 +#define TUNNEL_SERVER_END 67 +#define TUNNEL_PASS 69 + +#define ARAP_PASS 70 +#define ARAP_FEATURES 71 + +#define TUNNEL_PRIV_GROUP 81 +#define TUNNEL_ASSIGN_ID 82 +#define TUNNEL_PREFERENCE 83 + +#define ARAP_CHALLENGE_RESP 84 +#define ACCT_INT_INTERVAL 85 + +#define TUNNEL_CLIENT_AUTH 90 +#define TUNNEL_SERVER_AUTH 91 +/********************************/ +/* End Radius Attribute types */ +/********************************/ + + +static void print_attr_string(register u_char *, u_int, u_short ); +static void print_attr_num(register u_char *, u_int, u_short ); +static void print_vendor_attr(register u_char *, u_int, u_short ); +static void print_attr_address(register u_char *, u_int, u_short); +static void print_attr_time(register u_char *, u_int, u_short); +static void print_attr_strange(register u_char *, u_int, u_short); + + +struct radius_hdr { u_int8_t code; /* Radius packet code */ + u_int8_t id; /* Radius packet id */ + u_int16_t len; /* Radius total length */ + u_int8_t auth[16]; /* Authenticator */ + }; + +#define MIN_RADIUS_LEN 20 + +struct radius_attr { u_int8_t type; /* Attribute type */ + u_int8_t len; /* Attribute length */ + }; + + +/* Service-Type Attribute standard values */ +static const char *serv_type[]={ NULL, + "Login", + "Framed", + "Callback Login", + "Callback Framed", + "Outbound", + "Administrative", + "NAS Prompt", + "Authenticate Only", + "Callback NAS Prompt", + "Call Check", + "Callback Administrative", + }; + +/* Framed-Protocol Attribute standard values */ +static const char *frm_proto[]={ NULL, + "PPP", + "SLIP", + "ARAP", + "Gandalf proprietary", + "Xylogics IPX/SLIP", + "X.75 Synchronous", + }; + +/* Framed-Routing Attribute standard values */ +static const char *frm_routing[]={ "None", + "Send", + "Listen", + "Send&Listen", + }; + +/* Framed-Compression Attribute standard values */ +static const char *frm_comp[]={ "None", + "VJ TCP/IP", + "IPX", + "Stac-LZS", + }; + +/* Login-Service Attribute standard values */ +static const char *login_serv[]={ "Telnet", + "Rlogin", + "TCP Clear", + "PortMaster(proprietary)", + "LAT", + "X.25-PAD", + "X.25-T3POS", + "Unassigned", + "TCP Clear Quiet", + }; + + +/* Termination-Action Attribute standard values */ +static const char *term_action[]={ "Default", + "RADIUS-Request", + }; + +/* NAS-Port-Type Attribute standard values */ +static const char *nas_port_type[]={ "Async", + "Sync", + "ISDN Sync", + "ISDN Async V.120", + "ISDN Async V.110", + "Virtual", + "PIAFS", + "HDLC Clear Channel", + "X.25", + "X.75", + "G.3 Fax", + "SDSL", + "ADSL-CAP", + "ADSL-DMT", + "ISDN-DSL", + "Ethernet", + "xDSL", + "Cable", + "Wireless - Other", + "Wireless - IEEE 802.11", + }; + +/* Acct-Status-Type Accounting Attribute standard values */ +static const char *acct_status[]={ NULL, + "Start", + "Stop", + "Interim-Update", + "Unassigned", + "Unassigned", + "Unassigned", + "Accounting-On", + "Accounting-Off", + "Tunnel-Start", + "Tunnel-Stop", + "Tunnel-Reject", + "Tunnel-Link-Start", + "Tunnel-Link-Stop", + "Tunnel-Link-Reject", + "Failed", + }; + +/* Acct-Authentic Accounting Attribute standard values */ +static const char *acct_auth[]={ NULL, + "RADIUS", + "Local", + "Remote", + }; + +/* Acct-Terminate-Cause Accounting Attribute standard values */ +static const char *acct_term[]={ NULL, + "User Request", + "Lost Carrier", + "Lost Service", + "Idle Timeout", + "Session Timeout", + "Admin Reset", + "Admin Reboot", + "Port Error", + "NAS Error", + "NAS Request", + "NAS Reboot", + "Port Unneeded", + "Port Preempted", + "Port Suspended", + "Service Unavailable", + "Callback", + "User Error", + "Host Request", + }; + +/* Tunnel-Type Attribute standard values */ +static const char *tunnel_type[]={ NULL, + "PPTP", + "L2F", + "L2TP", + "ATMP", + "VTP", + "AH", + "IP-IP", + "MIN-IP-IP", + "ESP", + "GRE", + "DVS", + "IP-in-IP Tunneling", + }; + +/* Tunnel-Medium-Type Attribute standard values */ +static const char *tunnel_medium[]={ NULL, + "IPv4", + "IPv6", + "NSAP", + "HDLC", + "BBN 1822", + "802", + "E.163", + "E.164", + "F.69", + "X.121", + "IPX", + "Appletalk", + "Decnet IV", + "Banyan Vines", + "E.164 with NSAP subaddress", + }; + +/* ARAP-Zone-Access Attribute standard values */ +static const char *arap_zone[]={ NULL, + "Only access to dfl zone", + "Use zone filter inc.", + "Not used", + "Use zone filter exc.", + }; + +static const char *prompt[]={ "No Echo", + "Echo", + }; + + +struct attrtype { const char *name; /* Attribute name */ + const char **subtypes; /* Standard Values (if any) */ + u_char siz_subtypes; /* Size of total standard values */ + u_char first_subtype; /* First standard value is 0 or 1 */ + void (*print_func)(register u_char *, u_int, u_short ); + } attr_type[]= + { + { NULL, NULL, 0, 0, NULL }, + { "Username", NULL, 0, 0, print_attr_string }, + { "Password", NULL, 0, 0, NULL }, + { "CHAP Password", NULL, 0, 0, NULL }, + { "NAS IP Address", NULL, 0, 0, print_attr_address }, + { "NAS Port", NULL, 0, 0, print_attr_num }, + { "Service Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num }, + { "Framed Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num }, + { "Framed IP Address", NULL, 0, 0, print_attr_address }, + { "Framed IP Network", NULL, 0, 0, print_attr_address }, + { "Framed Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num }, + { "Filter ID", NULL, 0, 0, print_attr_string }, + { "Framed MTU", NULL, 0, 0, print_attr_num }, + { "Framed Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num }, + { "Login IP Host", NULL, 0, 0, print_attr_address }, + { "Login Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num }, + { "Login TCP Port", NULL, 0, 0, print_attr_num }, + { "Unassigned", NULL, 0, 0, NULL }, /*17*/ + { "Reply", NULL, 0, 0, print_attr_string }, + { "Callback-number", NULL, 0, 0, print_attr_string }, + { "Callback-ID", NULL, 0, 0, print_attr_string }, + { "Unassigned", NULL, 0, 0, NULL }, /*21*/ + { "Framed Route", NULL, 0, 0, print_attr_string }, + { "Framed IPX Network", NULL, 0, 0, print_attr_num }, + { "State", NULL, 0, 0, print_attr_string }, + { "Class", NULL, 0, 0, print_attr_string }, + { "Vendor Specific", NULL, 0, 0, print_vendor_attr }, + { "Session Timeout", NULL, 0, 0, print_attr_num }, + { "Idle Timeout", NULL, 0, 0, print_attr_num }, + { "Termination Action", term_action, TAM_SIZE(term_action), 0, print_attr_num }, + { "Called Station", NULL, 0, 0, print_attr_string }, + { "Calling Station", NULL, 0, 0, print_attr_string }, + { "NAS ID", NULL, 0, 0, print_attr_string }, + { "Proxy State", NULL, 0, 0, print_attr_string }, + { "Login LAT Service", NULL, 0, 0, print_attr_string }, + { "Login LAT Node", NULL, 0, 0, print_attr_string }, + { "Login LAT Group", NULL, 0, 0, print_attr_string }, + { "Framed Appletalk Link", NULL, 0, 0, print_attr_num }, + { "Framed Appltalk Net", NULL, 0, 0, print_attr_num }, + { "Framed Appletalk Zone", NULL, 0, 0, print_attr_string }, + { "Accounting Status", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num }, + { "Accounting Delay", NULL, 0, 0, print_attr_num }, + { "Accounting Input Octets", NULL, 0, 0, print_attr_num }, + { "Accounting Output Octets", NULL, 0, 0, print_attr_num }, + { "Accounting Session ID", NULL, 0, 0, print_attr_string }, + { "Accounting Authentication", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num }, + { "Accounting Session Time", NULL, 0, 0, print_attr_num }, + { "Accounting Input Packets", NULL, 0, 0, print_attr_num }, + { "Accounting Output Packets", NULL, 0, 0, print_attr_num }, + { "Accounting Termination Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num }, + { "Accounting Multilink Session ID", NULL, 0, 0, print_attr_string }, + { "Accounting Link Count", NULL, 0, 0, print_attr_num }, + { "Accounting Input Giga", NULL, 0, 0, print_attr_num }, + { "Accounting Output Giga", NULL, 0, 0, print_attr_num }, + { "Unassigned", NULL, 0, 0, NULL }, /*54*/ + { "Event Timestamp", NULL, 0, 0, print_attr_time }, + { "Unassigned", NULL, 0, 0, NULL }, /*56*/ + { "Unassigned", NULL, 0, 0, NULL }, /*57*/ + { "Unassigned", NULL, 0, 0, NULL }, /*58*/ + { "Unassigned", NULL, 0, 0, NULL }, /*59*/ + { "CHAP challenge", NULL, 0, 0, print_attr_string }, + { "NAS Port Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num }, + { "Port Limit", NULL, 0, 0, print_attr_num }, + { "Login LAT Port", NULL, 0, 0, print_attr_string }, /*63*/ + { "Tunnel Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num }, + { "Tunnel Medium", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num }, + { "Tunnel Client End", NULL, 0, 0, print_attr_string }, + { "Tunnel Server End", NULL, 0, 0, print_attr_string }, + { "Accounting Tunnel connect", NULL, 0, 0, print_attr_string }, + { "Tunnel Password", NULL, 0, 0, print_attr_string }, + { "ARAP Password", NULL, 0, 0, print_attr_strange }, + { "ARAP Feature", NULL, 0, 0, print_attr_strange }, + { "ARAP Zone Acces", 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 }, + { "Config Token", NULL, 0, 0, print_attr_string }, + { "EAP Message", NULL, 0, 0, print_attr_string }, + { "Message Authentication", NULL, 0, 0, print_attr_string }, /*80*/ + { "Tunnel Private Group", NULL, 0, 0, print_attr_string }, + { "Tunnel Assigned ID", NULL, 0, 0, print_attr_string }, + { "Tunnel Preference", NULL, 0, 0, print_attr_num }, + { "ARAP Challenge Response", NULL, 0, 0, print_attr_strange }, + { "Accounting Interim Interval", NULL, 0, 0, print_attr_num }, + { "Accounting 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 }, + { "Unassigned", NULL, 0, 0, NULL }, + { "Tunnel Client Authentication ID", NULL, 0, 0, print_attr_string }, + { "Tunnel Server Authentication ID", NULL, 0, 0, print_attr_string }, + { "Unassigned", NULL, 0, 0, NULL }, /*92*/ + { "Unassigned", NULL, 0, 0, NULL } /*93*/ + }; + + +/*****************************/ +/* Print an attribute string */ +/* value pointed by 'data' */ +/* and 'length' size. */ +/*****************************/ +/* Returns nothing. */ +/*****************************/ +static void +print_attr_string(register u_char *data, u_int length, u_short attr_code ) +{ + register u_int i; + + TCHECK2(data[0],length); + + switch(attr_code) + { + case TUNNEL_PASS: + if (length < 3) + { + printf(" [|radius]"); + return; + } + if (*data && (*data <=0x1F) ) + 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]"); +} |