1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | #ifdef __rtems__ |
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4 | #include <machine/rtems-bsd-program.h> |
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5 | #include "rtems-bsd-tcpdump-namespace.h" |
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6 | #endif /* __rtems__ */ |
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7 | /* |
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8 | * Copyright (C) 2000 Alfredo Andres Omella. All rights reserved. |
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9 | * |
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10 | * Redistribution and use in source and binary forms, with or without |
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11 | * modification, are permitted provided that the following conditions |
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12 | * are met: |
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13 | * |
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14 | * 1. Redistributions of source code must retain the above copyright |
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15 | * notice, this list of conditions and the following disclaimer. |
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16 | * 2. Redistributions in binary form must reproduce the above copyright |
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17 | * notice, this list of conditions and the following disclaimer in |
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18 | * the documentation and/or other materials provided with the |
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19 | * distribution. |
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20 | * 3. The names of the authors may not be used to endorse or promote |
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21 | * products derived from this software without specific prior |
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22 | * written permission. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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25 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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26 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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27 | */ |
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28 | |
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29 | /* \summary: Radius protocol printer */ |
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30 | |
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31 | /* |
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32 | * Radius printer routines as specified on: |
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33 | * |
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34 | * RFC 2865: |
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35 | * "Remote Authentication Dial In User Service (RADIUS)" |
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36 | * |
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37 | * RFC 2866: |
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38 | * "RADIUS Accounting" |
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39 | * |
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40 | * RFC 2867: |
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41 | * "RADIUS Accounting Modifications for Tunnel Protocol Support" |
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42 | * |
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43 | * RFC 2868: |
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44 | * "RADIUS Attributes for Tunnel Protocol Support" |
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45 | * |
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46 | * RFC 2869: |
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47 | * "RADIUS Extensions" |
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48 | * |
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49 | * RFC 3580: |
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50 | * "IEEE 802.1X Remote Authentication Dial In User Service (RADIUS)" |
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51 | * "Usage Guidelines" |
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52 | * |
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53 | * RFC 4675: |
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54 | * "RADIUS Attributes for Virtual LAN and Priority Support" |
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55 | * |
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56 | * RFC 5176: |
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57 | * "Dynamic Authorization Extensions to RADIUS" |
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58 | * |
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59 | * Alfredo Andres Omella (aandres@s21sec.com) v0.1 2000/09/15 |
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60 | * |
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61 | * TODO: Among other things to print ok MacIntosh and Vendor values |
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62 | */ |
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63 | |
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64 | #ifdef HAVE_CONFIG_H |
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65 | #include "config.h" |
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66 | #endif |
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67 | |
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68 | #include <netdissect-stdinc.h> |
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69 | |
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70 | #include <string.h> |
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71 | |
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72 | #include "netdissect.h" |
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73 | #include "addrtoname.h" |
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74 | #include "extract.h" |
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75 | #include "oui.h" |
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76 | |
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77 | static const char tstr[] = " [|radius]"; |
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78 | |
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79 | #define TAM_SIZE(x) (sizeof(x)/sizeof(x[0]) ) |
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80 | |
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81 | #define PRINT_HEX(bytes_len, ptr_data) \ |
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82 | while(bytes_len) \ |
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83 | { \ |
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84 | ND_PRINT((ndo, "%02X", *ptr_data )); \ |
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85 | ptr_data++; \ |
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86 | bytes_len--; \ |
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87 | } |
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88 | |
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89 | |
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90 | /* Radius packet codes */ |
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91 | #define RADCMD_ACCESS_REQ 1 /* Access-Request */ |
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92 | #define RADCMD_ACCESS_ACC 2 /* Access-Accept */ |
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93 | #define RADCMD_ACCESS_REJ 3 /* Access-Reject */ |
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94 | #define RADCMD_ACCOUN_REQ 4 /* Accounting-Request */ |
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95 | #define RADCMD_ACCOUN_RES 5 /* Accounting-Response */ |
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96 | #define RADCMD_ACCESS_CHA 11 /* Access-Challenge */ |
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97 | #define RADCMD_STATUS_SER 12 /* Status-Server */ |
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98 | #define RADCMD_STATUS_CLI 13 /* Status-Client */ |
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99 | #define RADCMD_DISCON_REQ 40 /* Disconnect-Request */ |
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100 | #define RADCMD_DISCON_ACK 41 /* Disconnect-ACK */ |
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101 | #define RADCMD_DISCON_NAK 42 /* Disconnect-NAK */ |
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102 | #define RADCMD_COA_REQ 43 /* CoA-Request */ |
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103 | #define RADCMD_COA_ACK 44 /* CoA-ACK */ |
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104 | #define RADCMD_COA_NAK 45 /* CoA-NAK */ |
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105 | #define RADCMD_RESERVED 255 /* Reserved */ |
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106 | |
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107 | static const struct tok radius_command_values[] = { |
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108 | { RADCMD_ACCESS_REQ, "Access-Request" }, |
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109 | { RADCMD_ACCESS_ACC, "Access-Accept" }, |
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110 | { RADCMD_ACCESS_REJ, "Access-Reject" }, |
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111 | { RADCMD_ACCOUN_REQ, "Accounting-Request" }, |
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112 | { RADCMD_ACCOUN_RES, "Accounting-Response" }, |
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113 | { RADCMD_ACCESS_CHA, "Access-Challenge" }, |
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114 | { RADCMD_STATUS_SER, "Status-Server" }, |
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115 | { RADCMD_STATUS_CLI, "Status-Client" }, |
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116 | { RADCMD_DISCON_REQ, "Disconnect-Request" }, |
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117 | { RADCMD_DISCON_ACK, "Disconnect-ACK" }, |
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118 | { RADCMD_DISCON_NAK, "Disconnect-NAK" }, |
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119 | { RADCMD_COA_REQ, "CoA-Request" }, |
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120 | { RADCMD_COA_ACK, "CoA-ACK" }, |
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121 | { RADCMD_COA_NAK, "CoA-NAK" }, |
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122 | { RADCMD_RESERVED, "Reserved" }, |
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123 | { 0, NULL} |
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124 | }; |
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125 | |
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126 | /********************************/ |
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127 | /* Begin Radius Attribute types */ |
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128 | /********************************/ |
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129 | #define SERV_TYPE 6 |
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130 | #define FRM_IPADDR 8 |
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131 | #define LOG_IPHOST 14 |
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132 | #define LOG_SERVICE 15 |
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133 | #define FRM_IPX 23 |
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134 | #define SESSION_TIMEOUT 27 |
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135 | #define IDLE_TIMEOUT 28 |
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136 | #define FRM_ATALK_LINK 37 |
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137 | #define FRM_ATALK_NETWORK 38 |
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138 | |
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139 | #define ACCT_DELAY 41 |
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140 | #define ACCT_SESSION_TIME 46 |
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141 | |
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142 | #define EGRESS_VLAN_ID 56 |
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143 | #define EGRESS_VLAN_NAME 58 |
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144 | |
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145 | #define TUNNEL_TYPE 64 |
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146 | #define TUNNEL_MEDIUM 65 |
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147 | #define TUNNEL_CLIENT_END 66 |
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148 | #define TUNNEL_SERVER_END 67 |
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149 | #define TUNNEL_PASS 69 |
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150 | |
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151 | #define ARAP_PASS 70 |
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152 | #define ARAP_FEATURES 71 |
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153 | |
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154 | #define TUNNEL_PRIV_GROUP 81 |
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155 | #define TUNNEL_ASSIGN_ID 82 |
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156 | #define TUNNEL_PREFERENCE 83 |
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157 | |
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158 | #define ARAP_CHALLENGE_RESP 84 |
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159 | #define ACCT_INT_INTERVAL 85 |
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160 | |
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161 | #define TUNNEL_CLIENT_AUTH 90 |
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162 | #define TUNNEL_SERVER_AUTH 91 |
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163 | /********************************/ |
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164 | /* End Radius Attribute types */ |
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165 | /********************************/ |
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166 | |
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167 | #define RFC4675_TAGGED 0x31 |
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168 | #define RFC4675_UNTAGGED 0x32 |
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169 | |
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170 | static const struct tok rfc4675_tagged[] = { |
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171 | { RFC4675_TAGGED, "Tagged" }, |
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172 | { RFC4675_UNTAGGED, "Untagged" }, |
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173 | { 0, NULL} |
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174 | }; |
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175 | |
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176 | |
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177 | static void print_attr_string(netdissect_options *, register const u_char *, u_int, u_short ); |
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178 | static void print_attr_num(netdissect_options *, register const u_char *, u_int, u_short ); |
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179 | static void print_vendor_attr(netdissect_options *, register const u_char *, u_int, u_short ); |
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180 | static void print_attr_address(netdissect_options *, register const u_char *, u_int, u_short); |
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181 | static void print_attr_time(netdissect_options *, register const u_char *, u_int, u_short); |
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182 | static void print_attr_strange(netdissect_options *, register const u_char *, u_int, u_short); |
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183 | |
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184 | |
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185 | struct radius_hdr { uint8_t code; /* Radius packet code */ |
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186 | uint8_t id; /* Radius packet id */ |
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187 | uint16_t len; /* Radius total length */ |
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188 | uint8_t auth[16]; /* Authenticator */ |
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189 | }; |
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190 | |
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191 | #define MIN_RADIUS_LEN 20 |
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192 | |
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193 | struct radius_attr { uint8_t type; /* Attribute type */ |
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194 | uint8_t len; /* Attribute length */ |
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195 | }; |
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196 | |
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197 | |
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198 | /* Service-Type Attribute standard values */ |
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199 | static const char *serv_type[]={ NULL, |
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200 | "Login", |
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201 | "Framed", |
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202 | "Callback Login", |
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203 | "Callback Framed", |
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204 | "Outbound", |
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205 | "Administrative", |
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206 | "NAS Prompt", |
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207 | "Authenticate Only", |
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208 | "Callback NAS Prompt", |
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209 | "Call Check", |
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210 | "Callback Administrative", |
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211 | }; |
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212 | |
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213 | /* Framed-Protocol Attribute standard values */ |
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214 | static const char *frm_proto[]={ NULL, |
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215 | "PPP", |
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216 | "SLIP", |
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217 | "ARAP", |
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218 | "Gandalf proprietary", |
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219 | "Xylogics IPX/SLIP", |
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220 | "X.75 Synchronous", |
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221 | }; |
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222 | |
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223 | /* Framed-Routing Attribute standard values */ |
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224 | static const char *frm_routing[]={ "None", |
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225 | "Send", |
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226 | "Listen", |
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227 | "Send&Listen", |
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228 | }; |
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229 | |
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230 | /* Framed-Compression Attribute standard values */ |
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231 | static const char *frm_comp[]={ "None", |
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232 | "VJ TCP/IP", |
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233 | "IPX", |
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234 | "Stac-LZS", |
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235 | }; |
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236 | |
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237 | /* Login-Service Attribute standard values */ |
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238 | static const char *login_serv[]={ "Telnet", |
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239 | "Rlogin", |
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240 | "TCP Clear", |
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241 | "PortMaster(proprietary)", |
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242 | "LAT", |
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243 | "X.25-PAD", |
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244 | "X.25-T3POS", |
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245 | "Unassigned", |
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246 | "TCP Clear Quiet", |
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247 | }; |
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248 | |
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249 | |
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250 | /* Termination-Action Attribute standard values */ |
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251 | static const char *term_action[]={ "Default", |
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252 | "RADIUS-Request", |
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253 | }; |
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254 | |
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255 | /* Ingress-Filters Attribute standard values */ |
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256 | static const char *ingress_filters[]={ NULL, |
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257 | "Enabled", |
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258 | "Disabled", |
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259 | }; |
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260 | |
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261 | /* NAS-Port-Type Attribute standard values */ |
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262 | static const char *nas_port_type[]={ "Async", |
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263 | "Sync", |
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264 | "ISDN Sync", |
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265 | "ISDN Async V.120", |
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266 | "ISDN Async V.110", |
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267 | "Virtual", |
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268 | "PIAFS", |
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269 | "HDLC Clear Channel", |
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270 | "X.25", |
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271 | "X.75", |
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272 | "G.3 Fax", |
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273 | "SDSL", |
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274 | "ADSL-CAP", |
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275 | "ADSL-DMT", |
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276 | "ISDN-DSL", |
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277 | "Ethernet", |
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278 | "xDSL", |
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279 | "Cable", |
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280 | "Wireless - Other", |
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281 | "Wireless - IEEE 802.11", |
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282 | }; |
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283 | |
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284 | /* Acct-Status-Type Accounting Attribute standard values */ |
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285 | static const char *acct_status[]={ NULL, |
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286 | "Start", |
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287 | "Stop", |
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288 | "Interim-Update", |
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289 | "Unassigned", |
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290 | "Unassigned", |
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291 | "Unassigned", |
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292 | "Accounting-On", |
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293 | "Accounting-Off", |
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294 | "Tunnel-Start", |
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295 | "Tunnel-Stop", |
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296 | "Tunnel-Reject", |
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297 | "Tunnel-Link-Start", |
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298 | "Tunnel-Link-Stop", |
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299 | "Tunnel-Link-Reject", |
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300 | "Failed", |
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301 | }; |
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302 | |
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303 | /* Acct-Authentic Accounting Attribute standard values */ |
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304 | static const char *acct_auth[]={ NULL, |
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305 | "RADIUS", |
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306 | "Local", |
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307 | "Remote", |
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308 | }; |
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309 | |
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310 | /* Acct-Terminate-Cause Accounting Attribute standard values */ |
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311 | static const char *acct_term[]={ NULL, |
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312 | "User Request", |
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313 | "Lost Carrier", |
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314 | "Lost Service", |
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315 | "Idle Timeout", |
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316 | "Session Timeout", |
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317 | "Admin Reset", |
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318 | "Admin Reboot", |
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319 | "Port Error", |
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320 | "NAS Error", |
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321 | "NAS Request", |
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322 | "NAS Reboot", |
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323 | "Port Unneeded", |
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324 | "Port Preempted", |
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325 | "Port Suspended", |
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326 | "Service Unavailable", |
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327 | "Callback", |
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328 | "User Error", |
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329 | "Host Request", |
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330 | }; |
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331 | |
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332 | /* Tunnel-Type Attribute standard values */ |
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333 | static const char *tunnel_type[]={ NULL, |
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334 | "PPTP", |
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335 | "L2F", |
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336 | "L2TP", |
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337 | "ATMP", |
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338 | "VTP", |
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339 | "AH", |
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340 | "IP-IP", |
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341 | "MIN-IP-IP", |
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342 | "ESP", |
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343 | "GRE", |
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344 | "DVS", |
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345 | "IP-in-IP Tunneling", |
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346 | "VLAN", |
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347 | }; |
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348 | |
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349 | /* Tunnel-Medium-Type Attribute standard values */ |
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350 | static const char *tunnel_medium[]={ NULL, |
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351 | "IPv4", |
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352 | "IPv6", |
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353 | "NSAP", |
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354 | "HDLC", |
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355 | "BBN 1822", |
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356 | "802", |
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357 | "E.163", |
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358 | "E.164", |
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359 | "F.69", |
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360 | "X.121", |
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361 | "IPX", |
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362 | "Appletalk", |
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363 | "Decnet IV", |
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364 | "Banyan Vines", |
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365 | "E.164 with NSAP subaddress", |
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366 | }; |
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367 | |
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368 | /* ARAP-Zone-Access Attribute standard values */ |
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369 | static const char *arap_zone[]={ NULL, |
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370 | "Only access to dfl zone", |
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371 | "Use zone filter inc.", |
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372 | "Not used", |
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373 | "Use zone filter exc.", |
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374 | }; |
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375 | |
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376 | static const char *prompt[]={ "No Echo", |
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377 | "Echo", |
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378 | }; |
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379 | |
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380 | |
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381 | static struct attrtype { |
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382 | const char *name; /* Attribute name */ |
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383 | const char **subtypes; /* Standard Values (if any) */ |
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384 | u_char siz_subtypes; /* Size of total standard values */ |
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385 | u_char first_subtype; /* First standard value is 0 or 1 */ |
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386 | void (*print_func)(netdissect_options *, register const u_char *, u_int, u_short); |
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387 | } attr_type[]= |
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388 | { |
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389 | { NULL, NULL, 0, 0, NULL }, |
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390 | { "User-Name", NULL, 0, 0, print_attr_string }, |
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391 | { "User-Password", NULL, 0, 0, NULL }, |
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392 | { "CHAP-Password", NULL, 0, 0, NULL }, |
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393 | { "NAS-IP-Address", NULL, 0, 0, print_attr_address }, |
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394 | { "NAS-Port", NULL, 0, 0, print_attr_num }, |
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395 | { "Service-Type", serv_type, TAM_SIZE(serv_type)-1, 1, print_attr_num }, |
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396 | { "Framed-Protocol", frm_proto, TAM_SIZE(frm_proto)-1, 1, print_attr_num }, |
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397 | { "Framed-IP-Address", NULL, 0, 0, print_attr_address }, |
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398 | { "Framed-IP-Netmask", NULL, 0, 0, print_attr_address }, |
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399 | { "Framed-Routing", frm_routing, TAM_SIZE(frm_routing), 0, print_attr_num }, |
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400 | { "Filter-Id", NULL, 0, 0, print_attr_string }, |
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401 | { "Framed-MTU", NULL, 0, 0, print_attr_num }, |
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402 | { "Framed-Compression", frm_comp, TAM_SIZE(frm_comp), 0, print_attr_num }, |
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403 | { "Login-IP-Host", NULL, 0, 0, print_attr_address }, |
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404 | { "Login-Service", login_serv, TAM_SIZE(login_serv), 0, print_attr_num }, |
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405 | { "Login-TCP-Port", NULL, 0, 0, print_attr_num }, |
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406 | { "Unassigned", NULL, 0, 0, NULL }, /*17*/ |
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407 | { "Reply-Message", NULL, 0, 0, print_attr_string }, |
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408 | { "Callback-Number", NULL, 0, 0, print_attr_string }, |
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409 | { "Callback-Id", NULL, 0, 0, print_attr_string }, |
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410 | { "Unassigned", NULL, 0, 0, NULL }, /*21*/ |
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411 | { "Framed-Route", NULL, 0, 0, print_attr_string }, |
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412 | { "Framed-IPX-Network", NULL, 0, 0, print_attr_num }, |
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413 | { "State", NULL, 0, 0, print_attr_string }, |
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414 | { "Class", NULL, 0, 0, print_attr_string }, |
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415 | { "Vendor-Specific", NULL, 0, 0, print_vendor_attr }, |
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416 | { "Session-Timeout", NULL, 0, 0, print_attr_num }, |
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417 | { "Idle-Timeout", NULL, 0, 0, print_attr_num }, |
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418 | { "Termination-Action", term_action, TAM_SIZE(term_action), 0, print_attr_num }, |
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419 | { "Called-Station-Id", NULL, 0, 0, print_attr_string }, |
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420 | { "Calling-Station-Id", NULL, 0, 0, print_attr_string }, |
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421 | { "NAS-Identifier", NULL, 0, 0, print_attr_string }, |
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422 | { "Proxy-State", NULL, 0, 0, print_attr_string }, |
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423 | { "Login-LAT-Service", NULL, 0, 0, print_attr_string }, |
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424 | { "Login-LAT-Node", NULL, 0, 0, print_attr_string }, |
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425 | { "Login-LAT-Group", NULL, 0, 0, print_attr_string }, |
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426 | { "Framed-AppleTalk-Link", NULL, 0, 0, print_attr_num }, |
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427 | { "Framed-AppleTalk-Network", NULL, 0, 0, print_attr_num }, |
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428 | { "Framed-AppleTalk-Zone", NULL, 0, 0, print_attr_string }, |
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429 | { "Acct-Status-Type", acct_status, TAM_SIZE(acct_status)-1, 1, print_attr_num }, |
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430 | { "Acct-Delay-Time", NULL, 0, 0, print_attr_num }, |
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431 | { "Acct-Input-Octets", NULL, 0, 0, print_attr_num }, |
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432 | { "Acct-Output-Octets", NULL, 0, 0, print_attr_num }, |
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433 | { "Acct-Session-Id", NULL, 0, 0, print_attr_string }, |
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434 | { "Acct-Authentic", acct_auth, TAM_SIZE(acct_auth)-1, 1, print_attr_num }, |
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435 | { "Acct-Session-Time", NULL, 0, 0, print_attr_num }, |
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436 | { "Acct-Input-Packets", NULL, 0, 0, print_attr_num }, |
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437 | { "Acct-Output-Packets", NULL, 0, 0, print_attr_num }, |
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438 | { "Acct-Terminate-Cause", acct_term, TAM_SIZE(acct_term)-1, 1, print_attr_num }, |
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439 | { "Acct-Multi-Session-Id", NULL, 0, 0, print_attr_string }, |
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440 | { "Acct-Link-Count", NULL, 0, 0, print_attr_num }, |
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441 | { "Acct-Input-Gigawords", NULL, 0, 0, print_attr_num }, |
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442 | { "Acct-Output-Gigawords", NULL, 0, 0, print_attr_num }, |
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443 | { "Unassigned", NULL, 0, 0, NULL }, /*54*/ |
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444 | { "Event-Timestamp", NULL, 0, 0, print_attr_time }, |
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445 | { "Egress-VLANID", NULL, 0, 0, print_attr_num }, |
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446 | { "Ingress-Filters", ingress_filters, TAM_SIZE(ingress_filters)-1, 1, print_attr_num }, |
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447 | { "Egress-VLAN-Name", NULL, 0, 0, print_attr_string }, |
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448 | { "User-Priority-Table", NULL, 0, 0, NULL }, |
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449 | { "CHAP-Challenge", NULL, 0, 0, print_attr_string }, |
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450 | { "NAS-Port-Type", nas_port_type, TAM_SIZE(nas_port_type), 0, print_attr_num }, |
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451 | { "Port-Limit", NULL, 0, 0, print_attr_num }, |
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452 | { "Login-LAT-Port", NULL, 0, 0, print_attr_string }, /*63*/ |
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453 | { "Tunnel-Type", tunnel_type, TAM_SIZE(tunnel_type)-1, 1, print_attr_num }, |
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454 | { "Tunnel-Medium-Type", tunnel_medium, TAM_SIZE(tunnel_medium)-1, 1, print_attr_num }, |
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455 | { "Tunnel-Client-Endpoint", NULL, 0, 0, print_attr_string }, |
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456 | { "Tunnel-Server-Endpoint", NULL, 0, 0, print_attr_string }, |
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457 | { "Acct-Tunnel-Connection", NULL, 0, 0, print_attr_string }, |
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458 | { "Tunnel-Password", NULL, 0, 0, print_attr_string }, |
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459 | { "ARAP-Password", NULL, 0, 0, print_attr_strange }, |
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460 | { "ARAP-Features", NULL, 0, 0, print_attr_strange }, |
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461 | { "ARAP-Zone-Access", arap_zone, TAM_SIZE(arap_zone)-1, 1, print_attr_num }, /*72*/ |
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462 | { "ARAP-Security", NULL, 0, 0, print_attr_string }, |
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463 | { "ARAP-Security-Data", NULL, 0, 0, print_attr_string }, |
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464 | { "Password-Retry", NULL, 0, 0, print_attr_num }, |
---|
465 | { "Prompt", prompt, TAM_SIZE(prompt), 0, print_attr_num }, |
---|
466 | { "Connect-Info", NULL, 0, 0, print_attr_string }, |
---|
467 | { "Configuration-Token", NULL, 0, 0, print_attr_string }, |
---|
468 | { "EAP-Message", NULL, 0, 0, print_attr_string }, |
---|
469 | { "Message-Authenticator", NULL, 0, 0, print_attr_string }, /*80*/ |
---|
470 | { "Tunnel-Private-Group-ID", NULL, 0, 0, print_attr_string }, |
---|
471 | { "Tunnel-Assignment-ID", NULL, 0, 0, print_attr_string }, |
---|
472 | { "Tunnel-Preference", NULL, 0, 0, print_attr_num }, |
---|
473 | { "ARAP-Challenge-Response", NULL, 0, 0, print_attr_strange }, |
---|
474 | { "Acct-Interim-Interval", NULL, 0, 0, print_attr_num }, |
---|
475 | { "Acct-Tunnel-Packets-Lost", NULL, 0, 0, print_attr_num }, /*86*/ |
---|
476 | { "NAS-Port-Id", NULL, 0, 0, print_attr_string }, |
---|
477 | { "Framed-Pool", NULL, 0, 0, print_attr_string }, |
---|
478 | { "CUI", NULL, 0, 0, print_attr_string }, |
---|
479 | { "Tunnel-Client-Auth-ID", NULL, 0, 0, print_attr_string }, |
---|
480 | { "Tunnel-Server-Auth-ID", NULL, 0, 0, print_attr_string }, |
---|
481 | { "Unassigned", NULL, 0, 0, NULL }, /*92*/ |
---|
482 | { "Unassigned", NULL, 0, 0, NULL } /*93*/ |
---|
483 | }; |
---|
484 | |
---|
485 | |
---|
486 | /*****************************/ |
---|
487 | /* Print an attribute string */ |
---|
488 | /* value pointed by 'data' */ |
---|
489 | /* and 'length' size. */ |
---|
490 | /*****************************/ |
---|
491 | /* Returns nothing. */ |
---|
492 | /*****************************/ |
---|
493 | static void |
---|
494 | print_attr_string(netdissect_options *ndo, |
---|
495 | register const u_char *data, u_int length, u_short attr_code) |
---|
496 | { |
---|
497 | register u_int i; |
---|
498 | |
---|
499 | ND_TCHECK2(data[0],length); |
---|
500 | |
---|
501 | switch(attr_code) |
---|
502 | { |
---|
503 | case TUNNEL_PASS: |
---|
504 | if (length < 3) |
---|
505 | goto trunc; |
---|
506 | if (*data && (*data <=0x1F) ) |
---|
507 | ND_PRINT((ndo, "Tag[%u] ", *data)); |
---|
508 | else |
---|
509 | ND_PRINT((ndo, "Tag[Unused] ")); |
---|
510 | data++; |
---|
511 | length--; |
---|
512 | ND_PRINT((ndo, "Salt %u ", EXTRACT_16BITS(data))); |
---|
513 | data+=2; |
---|
514 | length-=2; |
---|
515 | break; |
---|
516 | case TUNNEL_CLIENT_END: |
---|
517 | case TUNNEL_SERVER_END: |
---|
518 | case TUNNEL_PRIV_GROUP: |
---|
519 | case TUNNEL_ASSIGN_ID: |
---|
520 | case TUNNEL_CLIENT_AUTH: |
---|
521 | case TUNNEL_SERVER_AUTH: |
---|
522 | if (*data <= 0x1F) |
---|
523 | { |
---|
524 | if (length < 1) |
---|
525 | goto trunc; |
---|
526 | if (*data) |
---|
527 | ND_PRINT((ndo, "Tag[%u] ", *data)); |
---|
528 | else |
---|
529 | ND_PRINT((ndo, "Tag[Unused] ")); |
---|
530 | data++; |
---|
531 | length--; |
---|
532 | } |
---|
533 | break; |
---|
534 | case EGRESS_VLAN_NAME: |
---|
535 | if (length < 1) |
---|
536 | goto trunc; |
---|
537 | ND_PRINT((ndo, "%s (0x%02x) ", |
---|
538 | tok2str(rfc4675_tagged,"Unknown tag",*data), |
---|
539 | *data)); |
---|
540 | data++; |
---|
541 | length--; |
---|
542 | break; |
---|
543 | } |
---|
544 | |
---|
545 | for (i=0; i < length && *data; i++, data++) |
---|
546 | ND_PRINT((ndo, "%c", (*data < 32 || *data > 126) ? '.' : *data)); |
---|
547 | |
---|
548 | return; |
---|
549 | |
---|
550 | trunc: |
---|
551 | ND_PRINT((ndo, "%s", tstr)); |
---|
552 | } |
---|
553 | |
---|
554 | /* |
---|
555 | * print vendor specific attributes |
---|
556 | */ |
---|
557 | static void |
---|
558 | print_vendor_attr(netdissect_options *ndo, |
---|
559 | register const u_char *data, u_int length, u_short attr_code _U_) |
---|
560 | { |
---|
561 | u_int idx; |
---|
562 | u_int vendor_id; |
---|
563 | u_int vendor_type; |
---|
564 | u_int vendor_length; |
---|
565 | |
---|
566 | if (length < 4) |
---|
567 | goto trunc; |
---|
568 | ND_TCHECK2(*data, 4); |
---|
569 | vendor_id = EXTRACT_32BITS(data); |
---|
570 | data+=4; |
---|
571 | length-=4; |
---|
572 | |
---|
573 | ND_PRINT((ndo, "Vendor: %s (%u)", |
---|
574 | tok2str(smi_values,"Unknown",vendor_id), |
---|
575 | vendor_id)); |
---|
576 | |
---|
577 | while (length >= 2) { |
---|
578 | ND_TCHECK2(*data, 2); |
---|
579 | |
---|
580 | vendor_type = *(data); |
---|
581 | vendor_length = *(data+1); |
---|
582 | |
---|
583 | if (vendor_length < 2) |
---|
584 | { |
---|
585 | ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u (bogus, must be >= 2)", |
---|
586 | vendor_type, |
---|
587 | vendor_length)); |
---|
588 | return; |
---|
589 | } |
---|
590 | if (vendor_length > length) |
---|
591 | { |
---|
592 | ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u (bogus, goes past end of vendor-specific attribute)", |
---|
593 | vendor_type, |
---|
594 | vendor_length)); |
---|
595 | return; |
---|
596 | } |
---|
597 | data+=2; |
---|
598 | vendor_length-=2; |
---|
599 | length-=2; |
---|
600 | ND_TCHECK2(*data, vendor_length); |
---|
601 | |
---|
602 | ND_PRINT((ndo, "\n\t Vendor Attribute: %u, Length: %u, Value: ", |
---|
603 | vendor_type, |
---|
604 | vendor_length)); |
---|
605 | for (idx = 0; idx < vendor_length ; idx++, data++) |
---|
606 | ND_PRINT((ndo, "%c", (*data < 32 || *data > 126) ? '.' : *data)); |
---|
607 | length-=vendor_length; |
---|
608 | } |
---|
609 | return; |
---|
610 | |
---|
611 | trunc: |
---|
612 | ND_PRINT((ndo, "%s", tstr)); |
---|
613 | } |
---|
614 | |
---|
615 | /******************************/ |
---|
616 | /* Print an attribute numeric */ |
---|
617 | /* value pointed by 'data' */ |
---|
618 | /* and 'length' size. */ |
---|
619 | /******************************/ |
---|
620 | /* Returns nothing. */ |
---|
621 | /******************************/ |
---|
622 | static void |
---|
623 | print_attr_num(netdissect_options *ndo, |
---|
624 | register const u_char *data, u_int length, u_short attr_code) |
---|
625 | { |
---|
626 | uint32_t timeout; |
---|
627 | |
---|
628 | if (length != 4) |
---|
629 | { |
---|
630 | ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
---|
631 | return; |
---|
632 | } |
---|
633 | |
---|
634 | ND_TCHECK2(data[0],4); |
---|
635 | /* This attribute has standard values */ |
---|
636 | if (attr_type[attr_code].siz_subtypes) |
---|
637 | { |
---|
638 | uint32_t data_value; |
---|
639 | |
---|
640 | if ( (attr_code == TUNNEL_TYPE) || (attr_code == TUNNEL_MEDIUM) ) |
---|
641 | { |
---|
642 | if (!*data) |
---|
643 | ND_PRINT((ndo, "Tag[Unused] ")); |
---|
644 | else |
---|
645 | ND_PRINT((ndo, "Tag[%d] ", *data)); |
---|
646 | data++; |
---|
647 | data_value = EXTRACT_24BITS(data); |
---|
648 | } |
---|
649 | else |
---|
650 | { |
---|
651 | data_value = EXTRACT_32BITS(data); |
---|
652 | } |
---|
653 | if ( data_value <= (uint32_t)(attr_type[attr_code].siz_subtypes - 1 + |
---|
654 | attr_type[attr_code].first_subtype) && |
---|
655 | data_value >= attr_type[attr_code].first_subtype ) |
---|
656 | ND_PRINT((ndo, "%s", attr_type[attr_code].subtypes[data_value])); |
---|
657 | else |
---|
658 | ND_PRINT((ndo, "#%u", data_value)); |
---|
659 | } |
---|
660 | else |
---|
661 | { |
---|
662 | switch(attr_code) /* Be aware of special cases... */ |
---|
663 | { |
---|
664 | case FRM_IPX: |
---|
665 | if (EXTRACT_32BITS( data) == 0xFFFFFFFE ) |
---|
666 | ND_PRINT((ndo, "NAS Select")); |
---|
667 | else |
---|
668 | ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
---|
669 | break; |
---|
670 | |
---|
671 | case SESSION_TIMEOUT: |
---|
672 | case IDLE_TIMEOUT: |
---|
673 | case ACCT_DELAY: |
---|
674 | case ACCT_SESSION_TIME: |
---|
675 | case ACCT_INT_INTERVAL: |
---|
676 | timeout = EXTRACT_32BITS( data); |
---|
677 | if ( timeout < 60 ) |
---|
678 | ND_PRINT((ndo, "%02d secs", timeout)); |
---|
679 | else |
---|
680 | { |
---|
681 | if ( timeout < 3600 ) |
---|
682 | ND_PRINT((ndo, "%02d:%02d min", |
---|
683 | timeout / 60, timeout % 60)); |
---|
684 | else |
---|
685 | ND_PRINT((ndo, "%02d:%02d:%02d hours", |
---|
686 | timeout / 3600, (timeout % 3600) / 60, |
---|
687 | timeout % 60)); |
---|
688 | } |
---|
689 | break; |
---|
690 | |
---|
691 | case FRM_ATALK_LINK: |
---|
692 | if (EXTRACT_32BITS(data) ) |
---|
693 | ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
---|
694 | else |
---|
695 | ND_PRINT((ndo, "Unnumbered")); |
---|
696 | break; |
---|
697 | |
---|
698 | case FRM_ATALK_NETWORK: |
---|
699 | if (EXTRACT_32BITS(data) ) |
---|
700 | ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
---|
701 | else |
---|
702 | ND_PRINT((ndo, "NAS assigned")); |
---|
703 | break; |
---|
704 | |
---|
705 | case TUNNEL_PREFERENCE: |
---|
706 | if (*data) |
---|
707 | ND_PRINT((ndo, "Tag[%d] ", *data)); |
---|
708 | else |
---|
709 | ND_PRINT((ndo, "Tag[Unused] ")); |
---|
710 | data++; |
---|
711 | ND_PRINT((ndo, "%d", EXTRACT_24BITS(data))); |
---|
712 | break; |
---|
713 | |
---|
714 | case EGRESS_VLAN_ID: |
---|
715 | ND_PRINT((ndo, "%s (0x%02x) ", |
---|
716 | tok2str(rfc4675_tagged,"Unknown tag",*data), |
---|
717 | *data)); |
---|
718 | data++; |
---|
719 | ND_PRINT((ndo, "%d", EXTRACT_24BITS(data))); |
---|
720 | break; |
---|
721 | |
---|
722 | default: |
---|
723 | ND_PRINT((ndo, "%d", EXTRACT_32BITS(data))); |
---|
724 | break; |
---|
725 | |
---|
726 | } /* switch */ |
---|
727 | |
---|
728 | } /* if-else */ |
---|
729 | |
---|
730 | return; |
---|
731 | |
---|
732 | trunc: |
---|
733 | ND_PRINT((ndo, "%s", tstr)); |
---|
734 | } |
---|
735 | |
---|
736 | /*****************************/ |
---|
737 | /* Print an attribute IPv4 */ |
---|
738 | /* address value pointed by */ |
---|
739 | /* 'data' and 'length' size. */ |
---|
740 | /*****************************/ |
---|
741 | /* Returns nothing. */ |
---|
742 | /*****************************/ |
---|
743 | static void |
---|
744 | print_attr_address(netdissect_options *ndo, |
---|
745 | register const u_char *data, u_int length, u_short attr_code) |
---|
746 | { |
---|
747 | if (length != 4) |
---|
748 | { |
---|
749 | ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
---|
750 | return; |
---|
751 | } |
---|
752 | |
---|
753 | ND_TCHECK2(data[0],4); |
---|
754 | |
---|
755 | switch(attr_code) |
---|
756 | { |
---|
757 | case FRM_IPADDR: |
---|
758 | case LOG_IPHOST: |
---|
759 | if (EXTRACT_32BITS(data) == 0xFFFFFFFF ) |
---|
760 | ND_PRINT((ndo, "User Selected")); |
---|
761 | else |
---|
762 | if (EXTRACT_32BITS(data) == 0xFFFFFFFE ) |
---|
763 | ND_PRINT((ndo, "NAS Select")); |
---|
764 | else |
---|
765 | ND_PRINT((ndo, "%s",ipaddr_string(ndo, data))); |
---|
766 | break; |
---|
767 | |
---|
768 | default: |
---|
769 | ND_PRINT((ndo, "%s", ipaddr_string(ndo, data))); |
---|
770 | break; |
---|
771 | } |
---|
772 | |
---|
773 | return; |
---|
774 | |
---|
775 | trunc: |
---|
776 | ND_PRINT((ndo, "%s", tstr)); |
---|
777 | } |
---|
778 | |
---|
779 | /*************************************/ |
---|
780 | /* Print an attribute of 'secs since */ |
---|
781 | /* January 1, 1970 00:00 UTC' value */ |
---|
782 | /* pointed by 'data' and 'length' */ |
---|
783 | /* size. */ |
---|
784 | /*************************************/ |
---|
785 | /* Returns nothing. */ |
---|
786 | /*************************************/ |
---|
787 | static void |
---|
788 | print_attr_time(netdissect_options *ndo, |
---|
789 | register const u_char *data, u_int length, u_short attr_code _U_) |
---|
790 | { |
---|
791 | time_t attr_time; |
---|
792 | char string[26]; |
---|
793 | |
---|
794 | if (length != 4) |
---|
795 | { |
---|
796 | ND_PRINT((ndo, "ERROR: length %u != 4", length)); |
---|
797 | return; |
---|
798 | } |
---|
799 | |
---|
800 | ND_TCHECK2(data[0],4); |
---|
801 | |
---|
802 | attr_time = EXTRACT_32BITS(data); |
---|
803 | strlcpy(string, ctime(&attr_time), sizeof(string)); |
---|
804 | /* Get rid of the newline */ |
---|
805 | string[24] = '\0'; |
---|
806 | ND_PRINT((ndo, "%.24s", string)); |
---|
807 | return; |
---|
808 | |
---|
809 | trunc: |
---|
810 | ND_PRINT((ndo, "%s", tstr)); |
---|
811 | } |
---|
812 | |
---|
813 | /***********************************/ |
---|
814 | /* Print an attribute of 'strange' */ |
---|
815 | /* data format pointed by 'data' */ |
---|
816 | /* and 'length' size. */ |
---|
817 | /***********************************/ |
---|
818 | /* Returns nothing. */ |
---|
819 | /***********************************/ |
---|
820 | static void |
---|
821 | print_attr_strange(netdissect_options *ndo, |
---|
822 | register const u_char *data, u_int length, u_short attr_code) |
---|
823 | { |
---|
824 | u_short len_data; |
---|
825 | |
---|
826 | switch(attr_code) |
---|
827 | { |
---|
828 | case ARAP_PASS: |
---|
829 | if (length != 16) |
---|
830 | { |
---|
831 | ND_PRINT((ndo, "ERROR: length %u != 16", length)); |
---|
832 | return; |
---|
833 | } |
---|
834 | ND_PRINT((ndo, "User_challenge (")); |
---|
835 | ND_TCHECK2(data[0],8); |
---|
836 | len_data = 8; |
---|
837 | PRINT_HEX(len_data, data); |
---|
838 | ND_PRINT((ndo, ") User_resp(")); |
---|
839 | ND_TCHECK2(data[0],8); |
---|
840 | len_data = 8; |
---|
841 | PRINT_HEX(len_data, data); |
---|
842 | ND_PRINT((ndo, ")")); |
---|
843 | break; |
---|
844 | |
---|
845 | case ARAP_FEATURES: |
---|
846 | if (length != 14) |
---|
847 | { |
---|
848 | ND_PRINT((ndo, "ERROR: length %u != 14", length)); |
---|
849 | return; |
---|
850 | } |
---|
851 | ND_TCHECK2(data[0],1); |
---|
852 | if (*data) |
---|
853 | ND_PRINT((ndo, "User can change password")); |
---|
854 | else |
---|
855 | ND_PRINT((ndo, "User cannot change password")); |
---|
856 | data++; |
---|
857 | ND_TCHECK2(data[0],1); |
---|
858 | ND_PRINT((ndo, ", Min password length: %d", *data)); |
---|
859 | data++; |
---|
860 | ND_PRINT((ndo, ", created at: ")); |
---|
861 | ND_TCHECK2(data[0],4); |
---|
862 | len_data = 4; |
---|
863 | PRINT_HEX(len_data, data); |
---|
864 | ND_PRINT((ndo, ", expires in: ")); |
---|
865 | ND_TCHECK2(data[0],4); |
---|
866 | len_data = 4; |
---|
867 | PRINT_HEX(len_data, data); |
---|
868 | ND_PRINT((ndo, ", Current Time: ")); |
---|
869 | ND_TCHECK2(data[0],4); |
---|
870 | len_data = 4; |
---|
871 | PRINT_HEX(len_data, data); |
---|
872 | break; |
---|
873 | |
---|
874 | case ARAP_CHALLENGE_RESP: |
---|
875 | if (length < 8) |
---|
876 | { |
---|
877 | ND_PRINT((ndo, "ERROR: length %u != 8", length)); |
---|
878 | return; |
---|
879 | } |
---|
880 | ND_TCHECK2(data[0],8); |
---|
881 | len_data = 8; |
---|
882 | PRINT_HEX(len_data, data); |
---|
883 | break; |
---|
884 | } |
---|
885 | return; |
---|
886 | |
---|
887 | trunc: |
---|
888 | ND_PRINT((ndo, "%s", tstr)); |
---|
889 | } |
---|
890 | |
---|
891 | static void |
---|
892 | radius_attrs_print(netdissect_options *ndo, |
---|
893 | register const u_char *attr, u_int length) |
---|
894 | { |
---|
895 | register const struct radius_attr *rad_attr = (const struct radius_attr *)attr; |
---|
896 | const char *attr_string; |
---|
897 | |
---|
898 | while (length > 0) |
---|
899 | { |
---|
900 | if (length < 2) |
---|
901 | goto trunc; |
---|
902 | ND_TCHECK(*rad_attr); |
---|
903 | |
---|
904 | if (rad_attr->type > 0 && rad_attr->type < TAM_SIZE(attr_type)) |
---|
905 | attr_string = attr_type[rad_attr->type].name; |
---|
906 | else |
---|
907 | attr_string = "Unknown"; |
---|
908 | if (rad_attr->len < 2) |
---|
909 | { |
---|
910 | ND_PRINT((ndo, "\n\t %s Attribute (%u), length: %u (bogus, must be >= 2)", |
---|
911 | attr_string, |
---|
912 | rad_attr->type, |
---|
913 | rad_attr->len)); |
---|
914 | return; |
---|
915 | } |
---|
916 | if (rad_attr->len > length) |
---|
917 | { |
---|
918 | ND_PRINT((ndo, "\n\t %s Attribute (%u), length: %u (bogus, goes past end of packet)", |
---|
919 | attr_string, |
---|
920 | rad_attr->type, |
---|
921 | rad_attr->len)); |
---|
922 | return; |
---|
923 | } |
---|
924 | ND_PRINT((ndo, "\n\t %s Attribute (%u), length: %u, Value: ", |
---|
925 | attr_string, |
---|
926 | rad_attr->type, |
---|
927 | rad_attr->len)); |
---|
928 | |
---|
929 | if (rad_attr->type < TAM_SIZE(attr_type)) |
---|
930 | { |
---|
931 | if (rad_attr->len > 2) |
---|
932 | { |
---|
933 | if ( attr_type[rad_attr->type].print_func ) |
---|
934 | (*attr_type[rad_attr->type].print_func)( |
---|
935 | ndo, ((const u_char *)(rad_attr+1)), |
---|
936 | rad_attr->len - 2, rad_attr->type); |
---|
937 | } |
---|
938 | } |
---|
939 | /* do we also want to see a hex dump ? */ |
---|
940 | if (ndo->ndo_vflag> 1) |
---|
941 | print_unknown_data(ndo, (const u_char *)rad_attr+2, "\n\t ", (rad_attr->len)-2); |
---|
942 | |
---|
943 | length-=(rad_attr->len); |
---|
944 | rad_attr = (const struct radius_attr *)( ((const char *)(rad_attr))+rad_attr->len); |
---|
945 | } |
---|
946 | return; |
---|
947 | |
---|
948 | trunc: |
---|
949 | ND_PRINT((ndo, "%s", tstr)); |
---|
950 | } |
---|
951 | |
---|
952 | void |
---|
953 | radius_print(netdissect_options *ndo, |
---|
954 | const u_char *dat, u_int length) |
---|
955 | { |
---|
956 | register const struct radius_hdr *rad; |
---|
957 | u_int len, auth_idx; |
---|
958 | |
---|
959 | ND_TCHECK2(*dat, MIN_RADIUS_LEN); |
---|
960 | rad = (const struct radius_hdr *)dat; |
---|
961 | len = EXTRACT_16BITS(&rad->len); |
---|
962 | |
---|
963 | if (len < MIN_RADIUS_LEN) |
---|
964 | { |
---|
965 | ND_PRINT((ndo, "%s", tstr)); |
---|
966 | return; |
---|
967 | } |
---|
968 | |
---|
969 | if (len > length) |
---|
970 | len = length; |
---|
971 | |
---|
972 | if (ndo->ndo_vflag < 1) { |
---|
973 | ND_PRINT((ndo, "RADIUS, %s (%u), id: 0x%02x length: %u", |
---|
974 | tok2str(radius_command_values,"Unknown Command",rad->code), |
---|
975 | rad->code, |
---|
976 | rad->id, |
---|
977 | len)); |
---|
978 | return; |
---|
979 | } |
---|
980 | else { |
---|
981 | ND_PRINT((ndo, "RADIUS, length: %u\n\t%s (%u), id: 0x%02x, Authenticator: ", |
---|
982 | len, |
---|
983 | tok2str(radius_command_values,"Unknown Command",rad->code), |
---|
984 | rad->code, |
---|
985 | rad->id)); |
---|
986 | |
---|
987 | for(auth_idx=0; auth_idx < 16; auth_idx++) |
---|
988 | ND_PRINT((ndo, "%02x", rad->auth[auth_idx])); |
---|
989 | } |
---|
990 | |
---|
991 | if (len > MIN_RADIUS_LEN) |
---|
992 | radius_attrs_print(ndo, dat + MIN_RADIUS_LEN, len - MIN_RADIUS_LEN); |
---|
993 | return; |
---|
994 | |
---|
995 | trunc: |
---|
996 | ND_PRINT((ndo, "%s", tstr)); |
---|
997 | } |
---|
998 | #ifdef __rtems__ |
---|
999 | #include "rtems-bsd-tcpdump-print-radius-data.h" |
---|
1000 | #endif /* __rtems__ */ |
---|