| /* |
| * Copyright (C) 2000 Alfredo Andres Omella. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * 3. The names of the authors may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| |
| /* \summary: Radius protocol printer */ |
| |
| /* |
| * Radius printer routines as specified on: |
| * |
| * RFC 2865: |
| * "Remote Authentication Dial In User Service (RADIUS)" |
| * |
| * RFC 2866: |
| * "RADIUS Accounting" |
| * |
| * RFC 2867: |
| * "RADIUS Accounting Modifications for Tunnel Protocol Support" |
| * |
| * RFC 2868: |
| * "RADIUS Attributes for Tunnel Protocol Support" |
| * |
| * RFC 2869: |
| * "RADIUS Extensions" |
| * |
| * RFC 3580: |
| * "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)" |
| * "Usage Guidelines" |
| * |
| * RFC 4675: |
| * "RADIUS Attributes for Virtual LAN and Priority Support" |
| * |
| * RFC 5176: |
| * "Dynamic Authorization Extensions to RADIUS" |
| * |
| * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15 |
| * |
| * TODO: Among other things to print ok MacIntosh and Vendor values |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <netdissect-stdinc.h> |
| |
| #include <string.h> |
| |
| #include "netdissect.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| #include "oui.h" |
| |
| static const char tstr[] = " [|radius]"; |
| |
| #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) ) |
| |
| #define PRINT_HEX(bytes_len, ptr_data) \ |
| while(bytes_len) \ |
| { \ |
| ND_PRINT((ndo, "%02X", *ptr_data )); \ |
| ptr_data++; \ |
| bytes_len--; \ |
| } |
| |
| |
| /* Radius packet codes */ |
| #define RADCMD_ACCESS_REQ 1 /* Access-Request */ |
| #define RADCMD_ACCESS_ACC 2 /* Access-Accept */ |
| #define RADCMD_ACCESS_REJ 3 /* Access-Reject */ |
| #define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */ |
| #define RADCMD_ACCOUN_RES 5 /* Accounting-Response */ |
| #define RADCMD_ACCESS_CHA 11 /* Access-Challenge */ |
| #define RADCMD_STATUS_SER 12 /* Status-Server */ |
| #define RADCMD_STATUS_CLI 13 /* Status-Client */ |
| #define RADCMD_DISCON_REQ 40 /* Disconnect-Request */ |
| #define RADCMD_DISCON_ACK 41 /* Disconnect-ACK */ |
| #define RADCMD_DISCON_NAK 42 /* Disconnect-NAK */ |
| #define RADCMD_COA_REQ 43 /* CoA-Request */ |
| #define RADCMD_COA_ACK 44 /* CoA-ACK */ |
| #define RADCMD_COA_NAK 45 /* CoA-NAK */ |
| #define RADCMD_RESERVED 255 /* Reserved */ |
| |
| static const struct tok radius_command_values[] = { |
| { RADCMD_ACCESS_REQ, "Access-Request" }, |
| { RADCMD_ACCESS_ACC, "Access-Accept" }, |
| { RADCMD_ACCESS_REJ, "Access-Reject" }, |
| { RADCMD_ACCOUN_REQ, "Accounting-Request" }, |
| { RADCMD_ACCOUN_RES, "Accounting-Response" }, |
| { RADCMD_ACCESS_CHA, "Access-Challenge" }, |
| { RADCMD_STATUS_SER, "Status-Server" }, |
| { RADCMD_STATUS_CLI, "Status-Client" }, |
| { RADCMD_DISCON_REQ, "Disconnect-Request" }, |
| { RADCMD_DISCON_ACK, "Disconnect-ACK" }, |
| { RADCMD_DISCON_NAK, "Disconnect-NAK" }, |
| { RADCMD_COA_REQ, "CoA-Request" }, |
| { RADCMD_COA_ACK, "CoA-ACK" }, |
| { RADCMD_COA_NAK, "CoA-NAK" }, |
| { RADCMD_RESERVED, "Reserved" }, |
| { 0, NULL} |
| }; |
| |
| /********************************/ |
| /* Begin Radius Attribute types */ |
| /********************************/ |
| #define SERV_TYPE 6 |
| #define FRM_IPADDR 8 |
| #define LOG_IPHOST 14 |
| #define LOG_SERVICE 15 |
| #define FRM_IPX 23 |
| #define SESSION_TIMEOUT 27 |
| #define IDLE_TIMEOUT 28 |
| #define FRM_ATALK_LINK 37 |
| #define FRM_ATALK_NETWORK 38 |
| |
| #define ACCT_DELAY 41 |
| #define ACCT_SESSION_TIME 46 |
| |
| #define EGRESS_VLAN_ID 56 |
| #define EGRESS_VLAN_NAME 58 |
| |
| #define TUNNEL_TYPE 64 |
| #define TUNNEL_MEDIUM 65 |
| #define TUNNEL_CLIENT_END 66 |
| #define TUNNEL_SERVER_END 67 |
| #define TUNNEL_PASS 69 |
| |
| #define ARAP_PASS 70 |
| #define ARAP_FEATURES 71 |
| |
| #define TUNNEL_PRIV_GROUP 81 |
| #define TUNNEL_ASSIGN_ID 82 |
| #define TUNNEL_PREFERENCE 83 |
| |
| #define ARAP_CHALLENGE_RESP 84 |
| #define ACCT_INT_INTERVAL 85 |
| |
| #define TUNNEL_CLIENT_AUTH 90 |
| #define TUNNEL_SERVER_AUTH 91 |
| /********************************/ |
| /* End Radius Attribute types */ |
| /********************************/ |
| |
| #define RFC4675_TAGGED 0x31 |
| #define RFC4675_UNTAGGED 0x32 |
| |
| static const struct tok rfc4675_tagged[] = { |
| { RFC4675_TAGGED, "Tagged" }, |
| { RFC4675_UNTAGGED, "Untagged" }, |
| { 0, NULL} |
| }; |
| |
| |
| static void print_attr_string(netdissect_options *, register const u_char *, u_int, u_short ); |
| static void print_attr_num(netdissect_options *, register const u_char *, u_int, u_short ); |
| static void print_vendor_attr(netdissect_options *, register const u_char *, u_int, u_short ); |
| static void print_attr_address(netdissect_options *, register const u_char *, u_int, u_short); |
| static void print_attr_time(netdissect_options *, register const u_char *, u_int, u_short); |
| static void print_attr_strange(netdissect_options *, register const u_char *, u_int, u_short); |
| |
| |
| struct radius_hdr { uint8_t code; /* Radius packet code */ |
| uint8_t id; /* Radius packet id */ |
| uint16_t len; /* Radius total length */ |
| uint8_t auth[16]; /* Authenticator */ |
| }; |
| |
| #define MIN_RADIUS_LEN 20 |
| |
| struct radius_attr { uint8_t type; /* Attribute type */ |
| uint8_t len; /* Attribute length */ |
| }; |
| |
| |
| /* Service-Type Attribute standard values */ |
| static const char *serv_type[]={ NULL, |
| "Login", |
| "Framed", |
| "Callback Login", |
| "Callback Framed", |
| "Outbound", |
| "Administrative", |
| "NAS Prompt", |
| "Authenticate Only", |
| "Callback NAS Prompt", |
| "Call Check", |
| "Callback Administrative", |
| }; |
| |
| /* Framed-Protocol Attribute standard values */ |
| static const char *frm_proto[]={ NULL, |
| "PPP", |
| "SLIP", |
| "ARAP", |
| "Gandalf proprietary", |
| "Xylogics IPX/SLIP", |
| "X.75 Synchronous", |
| }; |
| |
| /* Framed-Routing Attribute standard values */ |
| static const char *frm_routing[]={ "None", |
| "Send", |
| "Listen", |
| "Send&Listen", |
| }; |
| |
| /* Framed-Compression Attribute standard values */ |
| static const char *frm_comp[]={ "None", |
| "VJ TCP/IP", |
| "IPX", |
| "Stac-LZS", |
| }; |
| |
| /* Login-Service Attribute standard values */ |
| static const char *login_serv[]={ "Telnet", |
| "Rlogin", |
| "TCP Clear", |
| "PortMaster(proprietary)", |
| "LAT", |
| "X.25-PAD", |
| "X.25-T3POS", |
| "Unassigned", |
| "TCP Clear Quiet", |
| }; |
| |
| |
| /* Termination-Action Attribute standard values */ |
| static const char *term_action[]={ "Default", |
| "RADIUS-Request", |
| }; |
| |
| /* Ingress-Filters Attribute standard values */ |
| static const char *ingress_filters[]={ NULL, |
| "Enabled", |
| "Disabled", |
| }; |
| |
| /* NAS-Port-Type Attribute standard values */ |
| static const char *nas_port_type[]={ "Async", |
| "Sync", |
| "ISDN Sync", |
| "ISDN Async V.120", |
| "ISDN Async V.110", |
| "Virtual", |
| "PIAFS", |
| "HDLC Clear Channel", |
| "X.25", |
| "X.75", |
| "G.3 Fax", |
| "SDSL", |
| "ADSL-CAP", |
| "ADSL-DMT", |
| "ISDN-DSL", |
| "Ethernet", |
| "xDSL", |
| "Cable", |
| "Wireless - Other", |
| "Wireless - IEEE 802.11", |
| }; |
| |
| /* Acct-Status-Type Accounting Attribute standard values */ |
| static const char *acct_status[]={ NULL, |
| "Start", |
| "Stop", |
| "Interim-Update", |
| "Unassigned", |
| "Unassigned", |
| "Unassigned", |
| "Accounting-On", |
| "Accounting-Off", |
| "Tunnel-Start", |
| "Tunnel-Stop", |
| "Tunnel-Reject", |
| "Tunnel-Link-Start", |
| "Tunnel-Link-Stop", |
| "Tunnel-Link-Reject", |
| "Failed", |
| }; |
| |
| /* Acct-Authentic Accounting Attribute standard values */ |
| static const char *acct_auth[]={ NULL, |
| "RADIUS", |
| "Local", |
| "Remote", |
| }; |
| |
| /* Acct-Terminate-Cause Accounting Attribute standard values */ |
| static const char *acct_term[]={ NULL, |
| "User Request", |
| "Lost Carrier", |
| "Lost Service", |
| "Idle Timeout", |
| "Session Timeout", |
| "Admin Reset", |
| "Admin Reboot", |
| "Port Error", |
| "NAS Error", |
| "NAS Request", |
| "NAS Reboot", |
| "Port Unneeded", |
| "Port Preempted", |
| "Port Suspended", |
| "Service Unavailable", |
| "Callback", |
| "User Error", |
| "Host Request", |
| }; |
| |
| /* Tunnel-Type Attribute standard values */ |
| static const char *tunnel_type[]={ NULL, |
| "PPTP", |
| "L2F", |
| "L2TP", |
| "ATMP", |
| "VTP", |
| "AH", |
| "IP-IP", |
| "MIN-IP-IP", |
| "ESP", |
| "GRE", |
| "DVS", |
| "IP-in-IP Tunneling", |
| "VLAN", |
| }; |
| |
| /* Tunnel-Medium-Type Attribute standard values */ |
| static const char *tunnel_medium[]={ NULL, |
| "IPv4", |
| "IPv6", |
| "NSAP", |
| "HDLC", |
| "BBN 1822", |
| "802", |
| "E.163", |
| "E.164", |
| "F.69", |
| "X.121", |
| "IPX", |
| "Appletalk", |
| "Decnet IV", |
| "Banyan Vines", |
| "E.164 with NSAP subaddress", |
| }; |
| |
| /* ARAP-Zone-Access Attribute standard values */ |
| static const char *arap_zone[]={ NULL, |
| "Only access to dfl zone", |
| "Use zone filter inc.", |
| "Not used", |
| "Use zone filter exc.", |
| }; |
| |
| static const char *prompt[]={ "No Echo", |
| "Echo", |
| }; |
| |
| |
| static struct attrtype { |
| const char *name; /* Attribute name */ |
| const char **subtypes; /* Standard Values (if any) */ |
| u_char siz_subtypes; /* Size of total standard values */ |
| u_char first_subtype; /* First standard value is 0 or 1 */ |
| void (*print_func)(netdissect_options *, register const u_char *, u_int, u_short); |
| } attr_type[]= |
| { |
| { NULL, NULL, 0, 0, NULL }, |
| { "User-Name", NULL, 0, 0, print_attr_string }, |
| { "User-Password", NULL, 0, 0, NULL }, |
| { "CHAP-Password", NULL, 0, 0, NULL }, |
| { "NAS-IP-Address", NULL, 0, 0, print_attr_address }, |
| { "NAS-Port", NULL, 0, 0, print_attr_num }, |
| { "Service-Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num }, |
| { "Framed-Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num }, |
| { "Framed-IP-Address", NULL, 0, 0, print_attr_address }, |
| { "Framed-IP-Netmask", NULL, 0, 0, print_attr_address }, |
| { "Framed-Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num }, |
| { "Filter-Id", NULL, 0, 0, print_attr_string }, |
| { "Framed-MTU", NULL, 0, 0, print_attr_num }, |
| { "Framed-Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num }, |
| { "Login-IP-Host", NULL, 0, 0, print_attr_address }, |
| { "Login-Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num }, |
| { "Login-TCP-Port", NULL, 0, 0, print_attr_num }, |
| { "Unassigned", NULL, 0, 0, NULL }, /*17*/ |
| { "Reply-Message", NULL, 0, 0, print_attr_string }, |
| { "Callback-Number", NULL, 0, 0, print_attr_string }, |
| { "Callback-Id", NULL, 0, 0, print_attr_string }, |
| { "Unassigned", NULL, 0, 0, NULL }, /*21*/ |
| { "Framed-Route", NULL, 0, 0, print_attr_string }, |
| { "Framed-IPX-Network", NULL, 0, 0, print_attr_num }, |
| { "State", NULL, 0, 0, print_attr_string }, |
| { "Class", NULL, 0, 0, print_attr_string }, |
| { "Vendor-Specific", NULL, 0, 0, print_vendor_attr }, |
| { "Session-Timeout", NULL, 0, 0, print_attr_num }, |
| { "Idle-Timeout", NULL, 0, 0, print_attr_num }, |
| { "Termination-Action", term_action, TAM_SIZE(term_action), 0, print_attr_num }, |
| { "Called-Station-Id", NULL, 0, 0, print_attr_string }, |
| { "Calling-Station-Id", NULL, 0, 0, print_attr_string }, |
| { "NAS-Identifier", NULL, 0, 0, print_attr_string }, |
| { "Proxy-State", NULL, 0, 0, print_attr_string }, |
| { "Login-LAT-Service", NULL, 0, 0, print_attr_string }, |
| { "Login-LAT-Node", NULL, 0, 0, print_attr_string }, |
| { "Login-LAT-Group", NULL, 0, 0, print_attr_string }, |
| { "Framed-AppleTalk-Link", NULL, 0, 0, print_attr_num }, |
| { "Framed-AppleTalk-Network", NULL, 0, 0, print_attr_num }, |
| { "Framed-AppleTalk-Zone", NULL, 0, 0, print_attr_string }, |
| { "Acct-Status-Type", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num }, |
| { "Acct-Delay-Time", NULL, 0, 0, print_attr_num }, |
| { "Acct-Input-Octets", NULL, 0, 0, print_attr_num }, |
| { "Acct-Output-Octets", NULL, 0, 0, print_attr_num }, |
| { "Acct-Session-Id", NULL, 0, 0, print_attr_string }, |
| { "Acct-Authentic", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num }, |
| { "Acct-Session-Time", NULL, 0, 0, print_attr_num }, |
| { "Acct-Input-Packets", NULL, 0, 0, print_attr_num }, |
| { "Acct-Output-Packets", NULL, 0, 0, print_attr_num }, |
| { "Acct-Terminate-Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num }, |
| { "Acct-Multi-Session-Id", NULL, 0, 0, print_attr_string }, |
| { "Acct-Link-Count", NULL, 0, 0, print_attr_num }, |
| { "Acct-Input-Gigawords", NULL, 0, 0, print_attr_num }, |
| { "Acct-Output-Gigawords", NULL, 0, 0, print_attr_num }, |
| { "Unassigned", NULL, 0, 0, NULL }, /*54*/ |
| { "Event-Timestamp", NULL, 0, 0, print_attr_time }, |
| { "Egress-VLANID", NULL, 0, 0, print_attr_num }, |
| { "Ingress-Filters", ingress_filters, TAM_SIZE(ingress_filters)-1, 1, print_attr_num }, |
| { "Egress-VLAN-Name", NULL, 0, 0, print_attr_string }, |
| { "User-Priority-Table", NULL, 0, 0, NULL }, |
| { "CHAP-Challenge", NULL, 0, 0, print_attr_string }, |
| { "NAS-Port-Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num }, |
| { "Port-Limit", NULL, 0, 0, print_attr_num }, |
| { "Login-LAT-Port", NULL, 0, 0, print_attr_string }, /*63*/ |
| { "Tunnel-Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num }, |
| { "Tunnel-Medium-Type", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num }, |
| { "Tunnel-Client-Endpoint", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Server-Endpoint", NULL, 0, 0, print_attr_string }, |
| { "Acct-Tunnel-Connection", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Password", NULL, 0, 0, print_attr_string }, |
| { "ARAP-Password", NULL, 0, 0, print_attr_strange }, |
| { "ARAP-Features", NULL, 0, 0, print_attr_strange }, |
| { "ARAP-Zone-Access", arap_zone, TAM_SIZE(arap_zone)-1, 1, print_attr_num }, /*72*/ |
| { "ARAP-Security", NULL, 0, 0, print_attr_string }, |
| { "ARAP-Security-Data", NULL, 0, 0, print_attr_string }, |
| { "Password-Retry", NULL, 0, 0, print_attr_num }, |
| { "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num }, |
| { "Connect-Info", NULL, 0, 0, print_attr_string }, |
| { "Configuration-Token", NULL, 0, 0, print_attr_string }, |
| { "EAP-Message", NULL, 0, 0, print_attr_string }, |
| { "Message-Authenticator", NULL, 0, 0, print_attr_string }, /*80*/ |
| { "Tunnel-Private-Group-ID", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Assignment-ID", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Preference", NULL, 0, 0, print_attr_num }, |
| { "ARAP-Challenge-Response", NULL, 0, 0, print_attr_strange }, |
| { "Acct-Interim-Interval", NULL, 0, 0, print_attr_num }, |
| { "Acct-Tunnel-Packets-Lost", NULL, 0, 0, print_attr_num }, /*86*/ |
| { "NAS-Port-Id", NULL, 0, 0, print_attr_string }, |
| { "Framed-Pool", NULL, 0, 0, print_attr_string }, |
| { "CUI", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Client-Auth-ID", NULL, 0, 0, print_attr_string }, |
| { "Tunnel-Server-Auth-ID", NULL, 0, 0, print_attr_string }, |
| { "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(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code) |
| { |
| register u_int i; |
| |
| ND_TCHECK2(data[0],length); |
| |
| switch(attr_code) |
| { |
| case TUNNEL_PASS: |
| if (length < 3) |
| goto trunc; |
| if (*data && (*data <=0x1F) ) |
| ND_PRINT((ndo, "Tag[%u] ", *data)); |
| else |
| ND_PRINT((ndo, "Tag[Unused] ")); |
| data++; |
| length--; |
| ND_PRINT((ndo, "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) |
| goto trunc; |
| if (*data) |
| ND_PRINT((ndo, "Tag[%u] ", *data)); |
| else |
| ND_PRINT((ndo, "Tag[Unused] ")); |
| data++; |
| length--; |
| } |
| break; |
| case EGRESS_VLAN_NAME: |
| if (length < 1) |
| goto trunc; |
| ND_PRINT((ndo, "%s (0x%02x) ", |
| tok2str(rfc4675_tagged,"Unknown tag",*data), |
| *data)); |
| data++; |
| length--; |
| break; |
| } |
| |
| for (i=0; i < length && *data; i++, data++) |
| ND_PRINT((ndo, "%c", (*data < 32 || *data > 126) ? '.' : *data)); |
| |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| /* |
| * print vendor specific attributes |
| */ |
| static void |
| print_vendor_attr(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code _U_) |
| { |
| u_int idx; |
| u_int vendor_id; |
| u_int vendor_type; |
| u_int vendor_length; |
| |
| if (length < 4) |
| goto trunc; |
| ND_TCHECK2(*data, 4); |
| vendor_id = EXTRACT_32BITS(data); |
| data+=4; |
| length-=4; |
| |
| ND_PRINT((ndo, "Vendor: %s (%u)", |
| tok2str(smi_values,"Unknown",vendor_id), |
| vendor_id)); |
| |
| while (length >= 2) { |
| ND_TCHECK2(*data, 2); |
| |
| vendor_type = *(data); |
| vendor_length = *(data+1); |
| |
| if (vendor_length < 2) |
| { |
| ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u (bogus, must be >= 2)", |
| vendor_type, |
| vendor_length)); |
| return; |
| } |
| if (vendor_length > length) |
| { |
| ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u (bogus, goes past end of vendor-specific attribute)", |
| vendor_type, |
| vendor_length)); |
| return; |
| } |
| data+=2; |
| vendor_length-=2; |
| length-=2; |
| ND_TCHECK2(*data, vendor_length); |
| |
| ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u, Value: ", |
| vendor_type, |
| vendor_length)); |
| for (idx = 0; idx < vendor_length ; idx++, data++) |
| ND_PRINT((ndo, "%c", (*data < 32 || *data > 126) ? '.' : *data)); |
| length-=vendor_length; |
| } |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| /******************************/ |
| /* Print an attribute numeric */ |
| /* value pointed by 'data' */ |
| /* and 'length' size. */ |
| /******************************/ |
| /* Returns nothing. */ |
| /******************************/ |
| static void |
| print_attr_num(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code) |
| { |
| uint32_t timeout; |
| |
| if (length != 4) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
| return; |
| } |
| |
| ND_TCHECK2(data[0],4); |
| /* This attribute has standard values */ |
| if (attr_type[attr_code].siz_subtypes) |
| { |
| static const char **table; |
| uint32_t data_value; |
| table = attr_type[attr_code].subtypes; |
| |
| if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) ) |
| { |
| if (!*data) |
| ND_PRINT((ndo, "Tag[Unused] ")); |
| else |
| ND_PRINT((ndo, "Tag[%d] ", *data)); |
| data++; |
| data_value = EXTRACT_24BITS(data); |
| } |
| else |
| { |
| data_value = EXTRACT_32BITS(data); |
| } |
| if ( data_value <= (uint32_t)(attr_type[attr_code].siz_subtypes - 1 + |
| attr_type[attr_code].first_subtype) && |
| data_value >= attr_type[attr_code].first_subtype ) |
| ND_PRINT((ndo, "%s", table[data_value])); |
| else |
| ND_PRINT((ndo, "#%u", data_value)); |
| } |
| else |
| { |
| switch(attr_code) /* Be aware of special cases... */ |
| { |
| case FRM_IPX: |
| if (EXTRACT_32BITS( data) == 0xFFFFFFFE ) |
| ND_PRINT((ndo, "NAS Select")); |
| else |
| ND_PRINT((ndo, "%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 ) |
| ND_PRINT((ndo, "%02d secs", timeout)); |
| else |
| { |
| if ( timeout < 3600 ) |
| ND_PRINT((ndo, "%02d:%02d min", |
| timeout / 60, timeout % 60)); |
| else |
| ND_PRINT((ndo, "%02d:%02d:%02d hours", |
| timeout / 3600, (timeout % 3600) / 60, |
| timeout % 60)); |
| } |
| break; |
| |
| case FRM_ATALK_LINK: |
| if (EXTRACT_32BITS(data) ) |
| ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
| else |
| ND_PRINT((ndo, "Unnumbered")); |
| break; |
| |
| case FRM_ATALK_NETWORK: |
| if (EXTRACT_32BITS(data) ) |
| ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
| else |
| ND_PRINT((ndo, "NAS assigned")); |
| break; |
| |
| case TUNNEL_PREFERENCE: |
| if (*data) |
| ND_PRINT((ndo, "Tag[%d] ", *data)); |
| else |
| ND_PRINT((ndo, "Tag[Unused] ")); |
| data++; |
| ND_PRINT((ndo, "%d", EXTRACT_24BITS(data))); |
| break; |
| |
| case EGRESS_VLAN_ID: |
| ND_PRINT((ndo, "%s (0x%02x) ", |
| tok2str(rfc4675_tagged,"Unknown tag",*data), |
| *data)); |
| data++; |
| ND_PRINT((ndo, "%d", EXTRACT_24BITS(data))); |
| break; |
| |
| default: |
| ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
| break; |
| |
| } /* switch */ |
| |
| } /* if-else */ |
| |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| /*****************************/ |
| /* Print an attribute IPv4 */ |
| /* address value pointed by */ |
| /* 'data' and 'length' size. */ |
| /*****************************/ |
| /* Returns nothing. */ |
| /*****************************/ |
| static void |
| print_attr_address(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code) |
| { |
| if (length != 4) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
| return; |
| } |
| |
| ND_TCHECK2(data[0],4); |
| |
| switch(attr_code) |
| { |
| case FRM_IPADDR: |
| case LOG_IPHOST: |
| if (EXTRACT_32BITS(data) == 0xFFFFFFFF ) |
| ND_PRINT((ndo, "User Selected")); |
| else |
| if (EXTRACT_32BITS(data) == 0xFFFFFFFE ) |
| ND_PRINT((ndo, "NAS Select")); |
| else |
| ND_PRINT((ndo, "%s",ipaddr_string(ndo, data))); |
| break; |
| |
| default: |
| ND_PRINT((ndo, "%s", ipaddr_string(ndo, data))); |
| break; |
| } |
| |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| /*************************************/ |
| /* Print an attribute of 'secs since */ |
| /* January 1, 1970 00:00 UTC' value */ |
| /* pointed by 'data' and 'length' */ |
| /* size. */ |
| /*************************************/ |
| /* Returns nothing. */ |
| /*************************************/ |
| static void |
| print_attr_time(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code _U_) |
| { |
| time_t attr_time; |
| char string[26]; |
| |
| if (length != 4) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
| return; |
| } |
| |
| ND_TCHECK2(data[0],4); |
| |
| attr_time = EXTRACT_32BITS(data); |
| strlcpy(string, ctime(&attr_time), sizeof(string)); |
| /* Get rid of the newline */ |
| string[24] = '\0'; |
| ND_PRINT((ndo, "%.24s", string)); |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| /***********************************/ |
| /* Print an attribute of 'strange' */ |
| /* data format pointed by 'data' */ |
| /* and 'length' size. */ |
| /***********************************/ |
| /* Returns nothing. */ |
| /***********************************/ |
| static void |
| print_attr_strange(netdissect_options *ndo, |
| register const u_char *data, u_int length, u_short attr_code) |
| { |
| u_short len_data; |
| |
| switch(attr_code) |
| { |
| case ARAP_PASS: |
| if (length != 16) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 16", length)); |
| return; |
| } |
| ND_PRINT((ndo, "User_challenge (")); |
| ND_TCHECK2(data[0],8); |
| len_data = 8; |
| PRINT_HEX(len_data, data); |
| ND_PRINT((ndo, ") User_resp(")); |
| ND_TCHECK2(data[0],8); |
| len_data = 8; |
| PRINT_HEX(len_data, data); |
| ND_PRINT((ndo, ")")); |
| break; |
| |
| case ARAP_FEATURES: |
| if (length != 14) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 14", length)); |
| return; |
| } |
| ND_TCHECK2(data[0],1); |
| if (*data) |
| ND_PRINT((ndo, "User can change password")); |
| else |
| ND_PRINT((ndo, "User cannot change password")); |
| data++; |
| ND_TCHECK2(data[0],1); |
| ND_PRINT((ndo, ", Min password length: %d", *data)); |
| data++; |
| ND_PRINT((ndo, ", created at: ")); |
| ND_TCHECK2(data[0],4); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| ND_PRINT((ndo, ", expires in: ")); |
| ND_TCHECK2(data[0],4); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| ND_PRINT((ndo, ", Current Time: ")); |
| ND_TCHECK2(data[0],4); |
| len_data = 4; |
| PRINT_HEX(len_data, data); |
| break; |
| |
| case ARAP_CHALLENGE_RESP: |
| if (length < 8) |
| { |
| ND_PRINT((ndo, "ERROR: length %u != 8", length)); |
| return; |
| } |
| ND_TCHECK2(data[0],8); |
| len_data = 8; |
| PRINT_HEX(len_data, data); |
| break; |
| } |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| static void |
| radius_attrs_print(netdissect_options *ndo, |
| register const u_char *attr, u_int length) |
| { |
| register const struct radius_attr *rad_attr = (const struct radius_attr *)attr; |
| const char *attr_string; |
| |
| while (length > 0) |
| { |
| if (length < 2) |
| goto trunc; |
| ND_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) |
| { |
| ND_PRINT((ndo, "\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) |
| { |
| ND_PRINT((ndo, "\n\t %s Attribute (%u), length: %u (bogus, goes past end of packet)", |
| attr_string, |
| rad_attr->type, |
| rad_attr->len)); |
| return; |
| } |
| ND_PRINT((ndo, "\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)( |
| ndo, ((const u_char *)(rad_attr+1)), |
| rad_attr->len - 2, rad_attr->type); |
| } |
| } |
| /* do we also want to see a hex dump ? */ |
| if (ndo->ndo_vflag> 1) |
| print_unknown_data(ndo, (const u_char *)rad_attr+2, "\n\t ", (rad_attr->len)-2); |
| |
| length-=(rad_attr->len); |
| rad_attr = (const struct radius_attr *)( ((const char *)(rad_attr))+rad_attr->len); |
| } |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
| |
| void |
| radius_print(netdissect_options *ndo, |
| const u_char *dat, u_int length) |
| { |
| register const struct radius_hdr *rad; |
| u_int len, auth_idx; |
| |
| ND_TCHECK2(*dat, MIN_RADIUS_LEN); |
| rad = (const struct radius_hdr *)dat; |
| len = EXTRACT_16BITS(&rad->len); |
| |
| if (len < MIN_RADIUS_LEN) |
| { |
| ND_PRINT((ndo, "%s", tstr)); |
| return; |
| } |
| |
| if (len > length) |
| len = length; |
| |
| if (ndo->ndo_vflag < 1) { |
| ND_PRINT((ndo, "RADIUS, %s (%u), id: 0x%02x length: %u", |
| tok2str(radius_command_values,"Unknown Command",rad->code), |
| rad->code, |
| rad->id, |
| len)); |
| return; |
| } |
| else { |
| ND_PRINT((ndo, "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++) |
| ND_PRINT((ndo, "%02x", rad->auth[auth_idx])); |
| } |
| |
| if (len > MIN_RADIUS_LEN) |
| radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN); |
| return; |
| |
| trunc: |
| ND_PRINT((ndo, "%s", tstr)); |
| } |
