nexmon – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | /* |
2 | * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 |
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3 | * The Regents of the University of California. All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that: (1) source code distributions |
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7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
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8 | * distributions including binary code include the above copyright notice and |
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9 | * this paragraph in its entirety in the documentation or other materials |
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10 | * provided with the distribution, and (3) all advertising materials mentioning |
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11 | * features or use of this software display the following acknowledgement: |
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12 | * ``This product includes software developed by the University of California, |
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13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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14 | * the University nor the names of its contributors may be used to endorse |
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15 | * or promote products derived from this software without specific prior |
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16 | * written permission. |
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17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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20 | */ |
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21 | |||
22 | #define NETDISSECT_REWORKED |
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23 | #ifdef HAVE_CONFIG_H |
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24 | #include "config.h" |
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25 | #endif |
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26 | |||
27 | #include <tcpdump-stdinc.h> |
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28 | |||
29 | #include "interface.h" |
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30 | #include "addrtoname.h" |
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31 | #include "extract.h" |
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32 | #include "appletalk.h" |
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33 | |||
34 | #include "udp.h" |
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35 | |||
36 | #include "ip.h" |
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37 | #ifdef INET6 |
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38 | #include "ip6.h" |
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39 | #endif |
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40 | #include "ipproto.h" |
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41 | #include "rpc_auth.h" |
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42 | #include "rpc_msg.h" |
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43 | |||
44 | #include "nameser.h" |
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45 | #include "nfs.h" |
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46 | |||
47 | struct rtcphdr { |
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48 | uint16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */ |
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49 | uint16_t rh_len; /* length of message (in words) */ |
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50 | uint32_t rh_ssrc; /* synchronization src id */ |
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51 | }; |
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52 | |||
53 | typedef struct { |
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54 | uint32_t upper; /* more significant 32 bits */ |
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55 | uint32_t lower; /* less significant 32 bits */ |
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56 | } ntp64; |
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57 | |||
58 | /* |
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59 | * Sender report. |
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60 | */ |
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61 | struct rtcp_sr { |
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62 | ntp64 sr_ntp; /* 64-bit ntp timestamp */ |
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63 | uint32_t sr_ts; /* reference media timestamp */ |
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64 | uint32_t sr_np; /* no. packets sent */ |
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65 | uint32_t sr_nb; /* no. bytes sent */ |
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66 | }; |
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67 | |||
68 | /* |
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69 | * Receiver report. |
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70 | * Time stamps are middle 32-bits of ntp timestamp. |
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71 | */ |
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72 | struct rtcp_rr { |
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73 | uint32_t rr_srcid; /* sender being reported */ |
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74 | uint32_t rr_nl; /* no. packets lost */ |
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75 | uint32_t rr_ls; /* extended last seq number received */ |
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76 | uint32_t rr_dv; /* jitter (delay variance) */ |
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77 | uint32_t rr_lsr; /* orig. ts from last rr from this src */ |
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78 | uint32_t rr_dlsr; /* time from recpt of last rr to xmit time */ |
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79 | }; |
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80 | |||
81 | /*XXX*/ |
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82 | #define RTCP_PT_SR 200 |
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83 | #define RTCP_PT_RR 201 |
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84 | #define RTCP_PT_SDES 202 |
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85 | #define RTCP_SDES_CNAME 1 |
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86 | #define RTCP_SDES_NAME 2 |
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87 | #define RTCP_SDES_EMAIL 3 |
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88 | #define RTCP_SDES_PHONE 4 |
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89 | #define RTCP_SDES_LOC 5 |
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90 | #define RTCP_SDES_TOOL 6 |
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91 | #define RTCP_SDES_NOTE 7 |
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92 | #define RTCP_SDES_PRIV 8 |
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93 | #define RTCP_PT_BYE 203 |
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94 | #define RTCP_PT_APP 204 |
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95 | |||
96 | static void |
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97 | vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up) |
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98 | { |
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99 | /* vat/vt audio */ |
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100 | u_int ts = *(uint16_t *)hdr; |
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101 | if ((ts & 0xf060) != 0) { |
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102 | /* probably vt */ |
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103 | ND_PRINT((ndo, "udp/vt %u %d / %d", |
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104 | (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)), |
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105 | ts & 0x3ff, ts >> 10)); |
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106 | } else { |
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107 | /* probably vat */ |
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108 | uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); |
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109 | uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); |
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110 | ND_PRINT((ndo, "udp/vat %u c%d %u%s", |
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111 | (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8), |
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112 | i0 & 0xffff, |
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113 | i1, i0 & 0x800000? "*" : "")); |
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114 | /* audio format */ |
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115 | if (i0 & 0x1f0000) |
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116 | ND_PRINT((ndo, " f%d", (i0 >> 16) & 0x1f)); |
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117 | if (i0 & 0x3f000000) |
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118 | ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f)); |
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119 | } |
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120 | } |
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121 | |||
122 | static void |
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123 | rtp_print(netdissect_options *ndo, const void *hdr, u_int len, |
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124 | register const struct udphdr *up) |
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125 | { |
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126 | /* rtp v1 or v2 */ |
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127 | u_int *ip = (u_int *)hdr; |
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128 | u_int hasopt, hasext, contype, hasmarker; |
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129 | uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]); |
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130 | uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]); |
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131 | u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8; |
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132 | const char * ptype; |
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133 | |||
134 | ip += 2; |
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135 | len >>= 2; |
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136 | len -= 2; |
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137 | hasopt = 0; |
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138 | hasext = 0; |
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139 | if ((i0 >> 30) == 1) { |
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140 | /* rtp v1 */ |
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141 | hasopt = i0 & 0x800000; |
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142 | contype = (i0 >> 16) & 0x3f; |
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143 | hasmarker = i0 & 0x400000; |
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144 | ptype = "rtpv1"; |
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145 | } else { |
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146 | /* rtp v2 */ |
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147 | hasext = i0 & 0x10000000; |
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148 | contype = (i0 >> 16) & 0x7f; |
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149 | hasmarker = i0 & 0x800000; |
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150 | dlen -= 4; |
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151 | ptype = "rtp"; |
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152 | ip += 1; |
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153 | len -= 1; |
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154 | } |
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155 | ND_PRINT((ndo, "udp/%s %d c%d %s%s %d %u", |
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156 | ptype, |
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157 | dlen, |
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158 | contype, |
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159 | (hasopt || hasext)? "+" : "", |
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160 | hasmarker? "*" : "", |
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161 | i0 & 0xffff, |
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162 | i1)); |
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163 | if (ndo->ndo_vflag) { |
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164 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((u_int *)hdr)[2]))); |
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165 | if (hasopt) { |
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166 | u_int i2, optlen; |
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167 | do { |
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168 | i2 = ip[0]; |
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169 | optlen = (i2 >> 16) & 0xff; |
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170 | if (optlen == 0 || optlen > len) { |
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171 | ND_PRINT((ndo, " !opt")); |
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172 | return; |
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173 | } |
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174 | ip += optlen; |
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175 | len -= optlen; |
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176 | } while ((int)i2 >= 0); |
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177 | } |
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178 | if (hasext) { |
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179 | u_int i2, extlen; |
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180 | i2 = ip[0]; |
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181 | extlen = (i2 & 0xffff) + 1; |
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182 | if (extlen > len) { |
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183 | ND_PRINT((ndo, " !ext")); |
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184 | return; |
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185 | } |
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186 | ip += extlen; |
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187 | } |
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188 | if (contype == 0x1f) /*XXX H.261 */ |
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189 | ND_PRINT((ndo, " 0x%04x", ip[0] >> 16)); |
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190 | } |
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191 | } |
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192 | |||
193 | static const u_char * |
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194 | rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep) |
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195 | { |
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196 | /* rtp v2 control (rtcp) */ |
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197 | struct rtcp_rr *rr = 0; |
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198 | struct rtcp_sr *sr; |
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199 | struct rtcphdr *rh = (struct rtcphdr *)hdr; |
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200 | u_int len; |
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201 | uint16_t flags; |
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202 | int cnt; |
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203 | double ts, dts; |
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204 | if ((u_char *)(rh + 1) > ep) { |
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205 | ND_PRINT((ndo, " [|rtcp]")); |
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206 | return (ep); |
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207 | } |
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208 | len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4; |
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209 | flags = EXTRACT_16BITS(&rh->rh_flags); |
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210 | cnt = (flags >> 8) & 0x1f; |
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211 | switch (flags & 0xff) { |
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212 | case RTCP_PT_SR: |
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213 | sr = (struct rtcp_sr *)(rh + 1); |
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214 | ND_PRINT((ndo, " sr")); |
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215 | if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh)) |
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216 | ND_PRINT((ndo, " [%d]", len)); |
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217 | if (ndo->ndo_vflag) |
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218 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc))); |
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219 | if ((u_char *)(sr + 1) > ep) { |
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220 | ND_PRINT((ndo, " [|rtcp]")); |
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221 | return (ep); |
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222 | } |
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223 | ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) + |
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224 | ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) / |
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225 | 4294967296.0); |
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226 | ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts), |
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227 | EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb))); |
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228 | rr = (struct rtcp_rr *)(sr + 1); |
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229 | break; |
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230 | case RTCP_PT_RR: |
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231 | ND_PRINT((ndo, " rr")); |
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232 | if (len != cnt * sizeof(*rr) + sizeof(*rh)) |
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233 | ND_PRINT((ndo, " [%d]", len)); |
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234 | rr = (struct rtcp_rr *)(rh + 1); |
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235 | if (ndo->ndo_vflag) |
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236 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc))); |
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237 | break; |
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238 | case RTCP_PT_SDES: |
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239 | ND_PRINT((ndo, " sdes %d", len)); |
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240 | if (ndo->ndo_vflag) |
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241 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc))); |
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242 | cnt = 0; |
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243 | break; |
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244 | case RTCP_PT_BYE: |
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245 | ND_PRINT((ndo, " bye %d", len)); |
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246 | if (ndo->ndo_vflag) |
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247 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc))); |
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248 | cnt = 0; |
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249 | break; |
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250 | default: |
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251 | ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len)); |
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252 | cnt = 0; |
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253 | break; |
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254 | } |
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255 | if (cnt > 1) |
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256 | ND_PRINT((ndo, " c%d", cnt)); |
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257 | while (--cnt >= 0) { |
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258 | if ((u_char *)(rr + 1) > ep) { |
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259 | ND_PRINT((ndo, " [|rtcp]")); |
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260 | return (ep); |
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261 | } |
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262 | if (ndo->ndo_vflag) |
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263 | ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rr->rr_srcid))); |
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264 | ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.; |
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265 | dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.; |
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266 | ND_PRINT((ndo, " %ul %us %uj @%.2f+%.2f", |
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267 | EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff, |
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268 | EXTRACT_32BITS(&rr->rr_ls), |
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269 | EXTRACT_32BITS(&rr->rr_dv), ts, dts)); |
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270 | } |
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271 | return (hdr + len); |
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272 | } |
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273 | |||
274 | static int udp_cksum(netdissect_options *ndo, register const struct ip *ip, |
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275 | register const struct udphdr *up, |
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276 | register u_int len) |
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277 | { |
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278 | return nextproto4_cksum(ndo, ip, (const uint8_t *)(void *)up, len, len, |
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279 | IPPROTO_UDP); |
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280 | } |
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281 | |||
282 | #ifdef INET6 |
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283 | static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up, |
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284 | u_int len) |
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285 | { |
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286 | return nextproto6_cksum(ip6, (const uint8_t *)(void *)up, len, len, |
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287 | IPPROTO_UDP); |
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288 | } |
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289 | #endif |
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290 | |||
291 | static void |
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292 | udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport) |
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293 | { |
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294 | #ifdef INET6 |
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295 | const struct ip6_hdr *ip6; |
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296 | |||
297 | if (IP_V(ip) == 6) |
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298 | ip6 = (const struct ip6_hdr *)ip; |
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299 | else |
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300 | ip6 = NULL; |
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301 | |||
302 | if (ip6) { |
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303 | if (ip6->ip6_nxt == IPPROTO_UDP) { |
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304 | if (sport == -1) { |
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305 | ND_PRINT((ndo, "%s > %s: ", |
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306 | ip6addr_string(ndo, &ip6->ip6_src), |
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307 | ip6addr_string(ndo, &ip6->ip6_dst))); |
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308 | } else { |
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309 | ND_PRINT((ndo, "%s.%s > %s.%s: ", |
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310 | ip6addr_string(ndo, &ip6->ip6_src), |
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311 | udpport_string(sport), |
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312 | ip6addr_string(ndo, &ip6->ip6_dst), |
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313 | udpport_string(dport))); |
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314 | } |
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315 | } else { |
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316 | if (sport != -1) { |
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317 | ND_PRINT((ndo, "%s > %s: ", |
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318 | udpport_string(sport), |
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319 | udpport_string(dport))); |
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320 | } |
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321 | } |
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322 | } else |
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323 | #endif /*INET6*/ |
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324 | { |
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325 | if (ip->ip_p == IPPROTO_UDP) { |
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326 | if (sport == -1) { |
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327 | ND_PRINT((ndo, "%s > %s: ", |
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328 | ipaddr_string(ndo, &ip->ip_src), |
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329 | ipaddr_string(ndo, &ip->ip_dst))); |
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330 | } else { |
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331 | ND_PRINT((ndo, "%s.%s > %s.%s: ", |
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332 | ipaddr_string(ndo, &ip->ip_src), |
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333 | udpport_string(sport), |
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334 | ipaddr_string(ndo, &ip->ip_dst), |
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335 | udpport_string(dport))); |
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336 | } |
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337 | } else { |
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338 | if (sport != -1) { |
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339 | ND_PRINT((ndo, "%s > %s: ", |
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340 | udpport_string(sport), |
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341 | udpport_string(dport))); |
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342 | } |
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343 | } |
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344 | } |
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345 | } |
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346 | |||
347 | void |
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348 | udp_print(netdissect_options *ndo, register const u_char *bp, u_int length, |
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349 | register const u_char *bp2, int fragmented) |
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350 | { |
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351 | register const struct udphdr *up; |
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352 | register const struct ip *ip; |
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353 | register const u_char *cp; |
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354 | register const u_char *ep = bp + length; |
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355 | uint16_t sport, dport, ulen; |
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356 | #ifdef INET6 |
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357 | register const struct ip6_hdr *ip6; |
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358 | #endif |
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359 | |||
360 | if (ep > ndo->ndo_snapend) |
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361 | ep = ndo->ndo_snapend; |
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362 | up = (struct udphdr *)bp; |
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363 | ip = (struct ip *)bp2; |
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364 | #ifdef INET6 |
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365 | if (IP_V(ip) == 6) |
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366 | ip6 = (struct ip6_hdr *)bp2; |
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367 | else |
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368 | ip6 = NULL; |
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369 | #endif /*INET6*/ |
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370 | if (!ND_TTEST(up->uh_dport)) { |
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371 | udpipaddr_print(ndo, ip, -1, -1); |
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372 | ND_PRINT((ndo, "[|udp]")); |
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373 | return; |
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374 | } |
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375 | |||
376 | sport = EXTRACT_16BITS(&up->uh_sport); |
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377 | dport = EXTRACT_16BITS(&up->uh_dport); |
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378 | |||
379 | if (length < sizeof(struct udphdr)) { |
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380 | udpipaddr_print(ndo, ip, sport, dport); |
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381 | ND_PRINT((ndo, "truncated-udp %d", length)); |
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382 | return; |
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383 | } |
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384 | ulen = EXTRACT_16BITS(&up->uh_ulen); |
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385 | if (ulen < sizeof(struct udphdr)) { |
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386 | udpipaddr_print(ndo, ip, sport, dport); |
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387 | ND_PRINT((ndo, "truncated-udplength %d", ulen)); |
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388 | return; |
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389 | } |
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390 | ulen -= sizeof(struct udphdr); |
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391 | length -= sizeof(struct udphdr); |
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392 | if (ulen < length) |
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393 | length = ulen; |
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394 | |||
395 | cp = (u_char *)(up + 1); |
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396 | if (cp > ndo->ndo_snapend) { |
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397 | udpipaddr_print(ndo, ip, sport, dport); |
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398 | ND_PRINT((ndo, "[|udp]")); |
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399 | return; |
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400 | } |
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401 | |||
402 | if (ndo->ndo_packettype) { |
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403 | register struct sunrpc_msg *rp; |
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404 | enum sunrpc_msg_type direction; |
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405 | |||
406 | switch (ndo->ndo_packettype) { |
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407 | |||
408 | case PT_VAT: |
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409 | udpipaddr_print(ndo, ip, sport, dport); |
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410 | vat_print(ndo, (void *)(up + 1), up); |
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411 | break; |
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412 | |||
413 | case PT_WB: |
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414 | udpipaddr_print(ndo, ip, sport, dport); |
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415 | wb_print(ndo, (void *)(up + 1), length); |
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416 | break; |
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417 | |||
418 | case PT_RPC: |
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419 | rp = (struct sunrpc_msg *)(up + 1); |
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420 | direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); |
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421 | if (direction == SUNRPC_CALL) |
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422 | sunrpcrequest_print(ndo, (u_char *)rp, length, |
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423 | (u_char *)ip); |
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424 | else |
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425 | nfsreply_print(ndo, (u_char *)rp, length, |
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426 | (u_char *)ip); /*XXX*/ |
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427 | break; |
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428 | |||
429 | case PT_RTP: |
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430 | udpipaddr_print(ndo, ip, sport, dport); |
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431 | rtp_print(ndo, (void *)(up + 1), length, up); |
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432 | break; |
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433 | |||
434 | case PT_RTCP: |
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435 | udpipaddr_print(ndo, ip, sport, dport); |
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436 | while (cp < ep) |
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437 | cp = rtcp_print(ndo, cp, ep); |
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438 | break; |
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439 | |||
440 | case PT_SNMP: |
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441 | udpipaddr_print(ndo, ip, sport, dport); |
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442 | snmp_print(ndo, (const u_char *)(up + 1), length); |
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443 | break; |
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444 | |||
445 | case PT_CNFP: |
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446 | udpipaddr_print(ndo, ip, sport, dport); |
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447 | cnfp_print(ndo, cp); |
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448 | break; |
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449 | |||
450 | case PT_TFTP: |
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451 | udpipaddr_print(ndo, ip, sport, dport); |
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452 | tftp_print(ndo, cp, length); |
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453 | break; |
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454 | |||
455 | case PT_AODV: |
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456 | udpipaddr_print(ndo, ip, sport, dport); |
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457 | aodv_print(ndo, (const u_char *)(up + 1), length, |
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458 | #ifdef INET6 |
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459 | ip6 != NULL); |
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460 | #else |
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461 | 0); |
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462 | #endif |
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463 | break; |
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464 | |||
465 | case PT_RADIUS: |
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466 | udpipaddr_print(ndo, ip, sport, dport); |
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467 | radius_print(ndo, cp, length); |
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468 | break; |
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469 | |||
470 | case PT_VXLAN: |
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471 | udpipaddr_print(ndo, ip, sport, dport); |
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472 | vxlan_print(ndo, (const u_char *)(up + 1), length); |
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473 | break; |
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474 | |||
475 | case PT_PGM: |
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476 | case PT_PGM_ZMTP1: |
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477 | udpipaddr_print(ndo, ip, sport, dport); |
||
478 | pgm_print(ndo, cp, length, bp2); |
||
479 | break; |
||
480 | case PT_LMP: |
||
481 | udpipaddr_print(ndo, ip, sport, dport); |
||
482 | lmp_print(ndo, cp, length); |
||
483 | break; |
||
484 | } |
||
485 | return; |
||
486 | } |
||
487 | |||
488 | udpipaddr_print(ndo, ip, sport, dport); |
||
489 | if (!ndo->ndo_qflag) { |
||
490 | register struct sunrpc_msg *rp; |
||
491 | enum sunrpc_msg_type direction; |
||
492 | |||
493 | rp = (struct sunrpc_msg *)(up + 1); |
||
494 | if (ND_TTEST(rp->rm_direction)) { |
||
495 | direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction); |
||
496 | if (dport == NFS_PORT && direction == SUNRPC_CALL) { |
||
497 | ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid))); |
||
498 | nfsreq_print_noaddr(ndo, (u_char *)rp, length, |
||
499 | (u_char *)ip); |
||
500 | return; |
||
501 | } |
||
502 | if (sport == NFS_PORT && direction == SUNRPC_REPLY) { |
||
503 | ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid))); |
||
504 | nfsreply_print_noaddr(ndo, (u_char *)rp, length, |
||
505 | (u_char *)ip); |
||
506 | return; |
||
507 | } |
||
508 | #ifdef notdef |
||
509 | if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) { |
||
510 | sunrpcrequest_print((u_char *)rp, length, (u_char *)ip); |
||
511 | return; |
||
512 | } |
||
513 | #endif |
||
514 | } |
||
515 | if (ND_TTEST(((struct LAP *)cp)->type) && |
||
516 | ((struct LAP *)cp)->type == lapDDP && |
||
517 | (atalk_port(sport) || atalk_port(dport))) { |
||
518 | if (ndo->ndo_vflag) |
||
519 | ND_PRINT((ndo, "kip ")); |
||
520 | llap_print(ndo, cp, length); |
||
521 | return; |
||
522 | } |
||
523 | } |
||
524 | |||
525 | if (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) { |
||
526 | /* Check the checksum, if possible. */ |
||
527 | uint16_t sum, udp_sum; |
||
528 | |||
529 | /* |
||
530 | * XXX - do this even if vflag == 1? |
||
531 | * TCP does, and we do so for UDP-over-IPv6. |
||
532 | */ |
||
533 | if (IP_V(ip) == 4 && (ndo->ndo_vflag > 1)) { |
||
534 | udp_sum = EXTRACT_16BITS(&up->uh_sum); |
||
535 | if (udp_sum == 0) { |
||
536 | ND_PRINT((ndo, "[no cksum] ")); |
||
537 | } else if (ND_TTEST2(cp[0], length)) { |
||
538 | sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr)); |
||
539 | |||
540 | if (sum != 0) { |
||
541 | ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ", |
||
542 | udp_sum, |
||
543 | in_cksum_shouldbe(udp_sum, sum))); |
||
544 | } else |
||
545 | ND_PRINT((ndo, "[udp sum ok] ")); |
||
546 | } |
||
547 | } |
||
548 | #ifdef INET6 |
||
549 | else if (IP_V(ip) == 6 && ip6->ip6_plen) { |
||
550 | /* for IPv6, UDP checksum is mandatory */ |
||
551 | if (ND_TTEST2(cp[0], length)) { |
||
552 | sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr)); |
||
553 | udp_sum = EXTRACT_16BITS(&up->uh_sum); |
||
554 | |||
555 | if (sum != 0) { |
||
556 | ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ", |
||
557 | udp_sum, |
||
558 | in_cksum_shouldbe(udp_sum, sum))); |
||
559 | } else |
||
560 | ND_PRINT((ndo, "[udp sum ok] ")); |
||
561 | } |
||
562 | } |
||
563 | #endif |
||
564 | } |
||
565 | |||
566 | if (!ndo->ndo_qflag) { |
||
567 | #define ISPORT(p) (dport == (p) || sport == (p)) |
||
568 | if (ISPORT(NAMESERVER_PORT)) |
||
569 | ns_print(ndo, (const u_char *)(up + 1), length, 0); |
||
570 | else if (ISPORT(MULTICASTDNS_PORT)) |
||
571 | ns_print(ndo, (const u_char *)(up + 1), length, 1); |
||
572 | else if (ISPORT(TIMED_PORT)) |
||
573 | timed_print(ndo, (const u_char *)(up + 1)); |
||
574 | else if (ISPORT(TFTP_PORT)) |
||
575 | tftp_print(ndo, (const u_char *)(up + 1), length); |
||
576 | else if (ISPORT(BOOTPC_PORT) || ISPORT(BOOTPS_PORT)) |
||
577 | bootp_print(ndo, (const u_char *)(up + 1), length); |
||
578 | else if (ISPORT(RIP_PORT)) |
||
579 | rip_print(ndo, (const u_char *)(up + 1), length); |
||
580 | else if (ISPORT(AODV_PORT)) |
||
581 | aodv_print(ndo, (const u_char *)(up + 1), length, |
||
582 | #ifdef INET6 |
||
583 | ip6 != NULL); |
||
584 | #else |
||
585 | 0); |
||
586 | #endif |
||
587 | else if (ISPORT(ISAKMP_PORT)) |
||
588 | isakmp_print(ndo, (const u_char *)(up + 1), length, bp2); |
||
589 | else if (ISPORT(ISAKMP_PORT_NATT)) |
||
590 | isakmp_rfc3948_print(ndo, (const u_char *)(up + 1), length, bp2); |
||
591 | #if 1 /*???*/ |
||
592 | else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2)) |
||
593 | isakmp_print(ndo, (const u_char *)(up + 1), length, bp2); |
||
594 | #endif |
||
595 | else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT)) |
||
596 | snmp_print(ndo, (const u_char *)(up + 1), length); |
||
597 | else if (ISPORT(NTP_PORT)) |
||
598 | ntp_print(ndo, (const u_char *)(up + 1), length); |
||
599 | else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT)) |
||
600 | krb_print(ndo, (const void *)(up + 1)); |
||
601 | else if (ISPORT(L2TP_PORT)) |
||
602 | l2tp_print(ndo, (const u_char *)(up + 1), length); |
||
603 | #ifdef TCPDUMP_DO_SMB |
||
604 | else if (ISPORT(NETBIOS_NS_PORT)) |
||
605 | nbt_udp137_print(ndo, (const u_char *)(up + 1), length); |
||
606 | else if (ISPORT(NETBIOS_DGRAM_PORT)) |
||
607 | nbt_udp138_print(ndo, (const u_char *)(up + 1), length); |
||
608 | #endif |
||
609 | else if (dport == VAT_PORT) |
||
610 | vat_print(ndo, (const void *)(up + 1), up); |
||
611 | else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT)) |
||
612 | zephyr_print(ndo, (const void *)(up + 1), length); |
||
613 | /* |
||
614 | * Since there are 10 possible ports to check, I think |
||
615 | * a <> test would be more efficient |
||
616 | */ |
||
617 | else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) || |
||
618 | (dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH)) |
||
619 | rx_print(ndo, (const void *)(up + 1), length, sport, dport, |
||
620 | (u_char *) ip); |
||
621 | #ifdef INET6 |
||
622 | else if (ISPORT(RIPNG_PORT)) |
||
623 | ripng_print(ndo, (const u_char *)(up + 1), length); |
||
624 | else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) |
||
625 | dhcp6_print(ndo, (const u_char *)(up + 1), length); |
||
626 | else if (ISPORT(AHCP_PORT)) |
||
627 | ahcp_print(ndo, (const u_char *)(up + 1), length); |
||
628 | else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD)) |
||
629 | babel_print(ndo, (const u_char *)(up + 1), length); |
||
630 | #endif /*INET6*/ |
||
631 | /* |
||
632 | * Kludge in test for whiteboard packets. |
||
633 | */ |
||
634 | else if (dport == WB_PORT) |
||
635 | wb_print(ndo, (const void *)(up + 1), length); |
||
636 | else if (ISPORT(CISCO_AUTORP_PORT)) |
||
637 | cisco_autorp_print(ndo, (const void *)(up + 1), length); |
||
638 | else if (ISPORT(RADIUS_PORT) || |
||
639 | ISPORT(RADIUS_NEW_PORT) || |
||
640 | ISPORT(RADIUS_ACCOUNTING_PORT) || |
||
641 | ISPORT(RADIUS_NEW_ACCOUNTING_PORT) || |
||
642 | ISPORT(RADIUS_COA_PORT) ) |
||
643 | radius_print(ndo, (const u_char *)(up+1), length); |
||
644 | else if (dport == HSRP_PORT) |
||
645 | hsrp_print(ndo, (const u_char *)(up + 1), length); |
||
646 | else if (ISPORT(LWRES_PORT)) |
||
647 | lwres_print(ndo, (const u_char *)(up + 1), length); |
||
648 | else if (ISPORT(LDP_PORT)) |
||
649 | ldp_print(ndo, (const u_char *)(up + 1), length); |
||
650 | else if (ISPORT(OLSR_PORT)) |
||
651 | olsr_print(ndo, (const u_char *)(up + 1), length, |
||
652 | #if INET6 |
||
653 | (IP_V(ip) == 6) ? 1 : 0); |
||
654 | #else |
||
655 | 0); |
||
656 | #endif |
||
657 | else if (ISPORT(MPLS_LSP_PING_PORT)) |
||
658 | lspping_print(ndo, (const u_char *)(up + 1), length); |
||
659 | else if (dport == BFD_CONTROL_PORT || |
||
660 | dport == BFD_ECHO_PORT ) |
||
661 | bfd_print(ndo, (const u_char *)(up+1), length, dport); |
||
662 | else if (ISPORT(LMP_PORT)) |
||
663 | lmp_print(ndo, (const u_char *)(up + 1), length); |
||
664 | else if (ISPORT(VQP_PORT)) |
||
665 | vqp_print(ndo, (const u_char *)(up + 1), length); |
||
666 | else if (ISPORT(SFLOW_PORT)) |
||
667 | sflow_print(ndo, (const u_char *)(up + 1), length); |
||
668 | else if (dport == LWAPP_CONTROL_PORT) |
||
669 | lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1); |
||
670 | else if (sport == LWAPP_CONTROL_PORT) |
||
671 | lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0); |
||
672 | else if (ISPORT(LWAPP_DATA_PORT)) |
||
673 | lwapp_data_print(ndo, (const u_char *)(up + 1), length); |
||
674 | else if (ISPORT(SIP_PORT)) |
||
675 | sip_print(ndo, (const u_char *)(up + 1), length); |
||
676 | else if (ISPORT(SYSLOG_PORT)) |
||
677 | syslog_print(ndo, (const u_char *)(up + 1), length); |
||
678 | else if (ISPORT(OTV_PORT)) |
||
679 | otv_print(ndo, (const u_char *)(up + 1), length); |
||
680 | else if (ISPORT(VXLAN_PORT)) |
||
681 | vxlan_print(ndo, (const u_char *)(up + 1), length); |
||
682 | else if (ISPORT(GENEVE_PORT)) |
||
683 | geneve_print(ndo, (const u_char *)(up + 1), length); |
||
684 | else { |
||
685 | if (ulen > length) |
||
686 | ND_PRINT((ndo, "UDP, bad length %u > %u", |
||
687 | ulen, length)); |
||
688 | else |
||
689 | ND_PRINT((ndo, "UDP, length %u", ulen)); |
||
690 | } |
||
691 | #undef ISPORT |
||
692 | } else { |
||
693 | if (ulen > length) |
||
694 | ND_PRINT((ndo, "UDP, bad length %u > %u", |
||
695 | ulen, length)); |
||
696 | else |
||
697 | ND_PRINT((ndo, "UDP, length %u", ulen)); |
||
698 | } |
||
699 | } |
||
700 | |||
701 | |||
702 | /* |
||
703 | * Local Variables: |
||
704 | * c-style: whitesmith |
||
705 | * c-basic-offset: 8 |
||
706 | * End: |
||
707 | */ |
||
708 |