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1 /* |
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2 * Copyright (c) 1995 Danny Gasparovski. |
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3 * Portions copyright (c) 2000 Kelly Price. |
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4 * |
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5 * Please read the file COPYRIGHT for the |
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6 * terms and conditions of the copyright. |
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7 */ |
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8 |
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9 #include <slirp.h> |
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10 |
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11 FILE *dfd = NULL; |
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12 #ifdef DEBUG |
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13 int dostats = 1; |
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14 #else |
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15 int dostats = 0; |
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16 #endif |
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17 int slirp_debug = 0; |
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18 |
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19 /* Carry over one item from main.c so that the tty's restored. |
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20 * Only done when the tty being used is /dev/tty --RedWolf */ |
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21 #ifndef CONFIG_QEMU |
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22 extern struct termios slirp_tty_settings; |
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23 extern int slirp_tty_restore; |
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24 |
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25 |
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26 void |
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27 debug_init(file, dbg) |
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28 char *file; |
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29 int dbg; |
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30 { |
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31 /* Close the old debugging file */ |
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32 if (dfd) |
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33 fclose(dfd); |
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34 |
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35 dfd = fopen(file,"w"); |
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36 if (dfd != NULL) { |
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37 #if 0 |
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38 fprintf(dfd,"Slirp %s - Debugging Started.\n", SLIRP_VERSION); |
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39 #endif |
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40 fprintf(dfd,"Debugging Started level %i.\r\n",dbg); |
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41 fflush(dfd); |
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42 slirp_debug = dbg; |
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43 } else { |
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44 lprint("Error: Debugging file \"%s\" could not be opened: %s\r\n", |
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45 file, strerror(errno)); |
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46 } |
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47 } |
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48 |
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49 /* |
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50 * Dump a packet in the same format as tcpdump -x |
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51 */ |
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52 #ifdef DEBUG |
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53 void |
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54 dump_packet(dat, n) |
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55 void *dat; |
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56 int n; |
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57 { |
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58 u_char *pptr = (u_char *)dat; |
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59 int j,k; |
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60 |
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61 n /= 16; |
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62 n++; |
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63 DEBUG_MISC((dfd, "PACKET DUMPED: \n")); |
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64 for(j = 0; j < n; j++) { |
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65 for(k = 0; k < 6; k++) |
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66 DEBUG_MISC((dfd, "%02x ", *pptr++)); |
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67 DEBUG_MISC((dfd, "\n")); |
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68 fflush(dfd); |
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69 } |
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70 } |
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71 #endif |
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72 #endif |
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73 |
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74 #ifdef LOG_ENABLED |
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75 #if 0 |
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76 /* |
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77 * Statistic routines |
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78 * |
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79 * These will print statistics to the screen, the debug file (dfd), or |
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80 * a buffer, depending on "type", so that the stats can be sent over |
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81 * the link as well. |
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82 */ |
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83 |
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84 static void |
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85 ttystats(ttyp) |
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86 struct ttys *ttyp; |
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87 { |
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88 struct slirp_ifstats *is = &ttyp->ifstats; |
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89 char buff[512]; |
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90 |
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91 lprint(" \r\n"); |
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92 |
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93 if (IF_COMP & IF_COMPRESS) |
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94 strcpy(buff, "on"); |
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95 else if (IF_COMP & IF_NOCOMPRESS) |
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96 strcpy(buff, "off"); |
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97 else |
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98 strcpy(buff, "off (for now)"); |
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99 lprint("Unit %d:\r\n", ttyp->unit); |
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100 lprint(" using %s encapsulation (VJ compression is %s)\r\n", ( |
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101 #ifdef USE_PPP |
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102 ttyp->proto==PROTO_PPP?"PPP": |
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103 #endif |
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104 "SLIP"), buff); |
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105 lprint(" %d baudrate\r\n", ttyp->baud); |
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106 lprint(" interface is %s\r\n", ttyp->up?"up":"down"); |
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107 lprint(" using fd %d, guardian pid is %d\r\n", ttyp->fd, ttyp->pid); |
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108 #ifndef FULL_BOLT |
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109 lprint(" towrite is %d bytes\r\n", ttyp->towrite); |
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110 #endif |
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111 if (ttyp->zeros) |
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112 lprint(" %d zeros have been typed\r\n", ttyp->zeros); |
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113 else if (ttyp->ones) |
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114 lprint(" %d ones have been typed\r\n", ttyp->ones); |
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115 lprint("Interface stats:\r\n"); |
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116 lprint(" %6d output packets sent (%d bytes)\r\n", is->out_pkts, is->out_bytes); |
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117 lprint(" %6d output packets dropped (%d bytes)\r\n", is->out_errpkts, is->out_errbytes); |
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118 lprint(" %6d input packets received (%d bytes)\r\n", is->in_pkts, is->in_bytes); |
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119 lprint(" %6d input packets dropped (%d bytes)\r\n", is->in_errpkts, is->in_errbytes); |
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120 lprint(" %6d bad input packets\r\n", is->in_mbad); |
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121 } |
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122 |
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123 static void |
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124 allttystats(void) |
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125 { |
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126 struct ttys *ttyp; |
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127 |
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128 for (ttyp = ttys; ttyp; ttyp = ttyp->next) |
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129 ttystats(ttyp); |
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130 } |
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131 #endif |
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132 |
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133 static void |
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134 ipstats(void) |
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135 { |
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136 lprint(" \r\n"); |
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137 |
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138 lprint("IP stats:\r\n"); |
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139 lprint(" %6d total packets received (%d were unaligned)\r\n", |
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140 ipstat.ips_total, ipstat.ips_unaligned); |
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141 lprint(" %6d with incorrect version\r\n", ipstat.ips_badvers); |
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142 lprint(" %6d with bad header checksum\r\n", ipstat.ips_badsum); |
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143 lprint(" %6d with length too short (len < sizeof(iphdr))\r\n", ipstat.ips_tooshort); |
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144 lprint(" %6d with length too small (len < ip->len)\r\n", ipstat.ips_toosmall); |
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145 lprint(" %6d with bad header length\r\n", ipstat.ips_badhlen); |
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146 lprint(" %6d with bad packet length\r\n", ipstat.ips_badlen); |
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147 lprint(" %6d fragments received\r\n", ipstat.ips_fragments); |
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148 lprint(" %6d fragments dropped\r\n", ipstat.ips_fragdropped); |
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149 lprint(" %6d fragments timed out\r\n", ipstat.ips_fragtimeout); |
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150 lprint(" %6d packets reassembled ok\r\n", ipstat.ips_reassembled); |
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151 lprint(" %6d outgoing packets fragmented\r\n", ipstat.ips_fragmented); |
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152 lprint(" %6d total outgoing fragments\r\n", ipstat.ips_ofragments); |
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153 lprint(" %6d with bad protocol field\r\n", ipstat.ips_noproto); |
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154 lprint(" %6d total packets delivered\r\n", ipstat.ips_delivered); |
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155 } |
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156 |
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157 #ifndef CONFIG_QEMU |
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158 static void |
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159 vjstats(void) |
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160 { |
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161 lprint(" \r\n"); |
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162 |
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163 lprint("VJ compression stats:\r\n"); |
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164 |
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165 lprint(" %6d outbound packets (%d compressed)\r\n", |
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166 comp_s.sls_packets, comp_s.sls_compressed); |
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167 lprint(" %6d searches for connection stats (%d misses)\r\n", |
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168 comp_s.sls_searches, comp_s.sls_misses); |
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169 lprint(" %6d inbound uncompressed packets\r\n", comp_s.sls_uncompressedin); |
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170 lprint(" %6d inbound compressed packets\r\n", comp_s.sls_compressedin); |
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171 lprint(" %6d inbound unknown type packets\r\n", comp_s.sls_errorin); |
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172 lprint(" %6d inbound packets tossed due to error\r\n", comp_s.sls_tossed); |
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173 } |
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174 #endif |
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175 |
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176 static void |
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177 tcpstats(void) |
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178 { |
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179 lprint(" \r\n"); |
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180 |
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181 lprint("TCP stats:\r\n"); |
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182 |
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183 lprint(" %6d packets sent\r\n", tcpstat.tcps_sndtotal); |
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184 lprint(" %6d data packets (%d bytes)\r\n", |
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185 tcpstat.tcps_sndpack, tcpstat.tcps_sndbyte); |
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186 lprint(" %6d data packets retransmitted (%d bytes)\r\n", |
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187 tcpstat.tcps_sndrexmitpack, tcpstat.tcps_sndrexmitbyte); |
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188 lprint(" %6d ack-only packets (%d delayed)\r\n", |
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189 tcpstat.tcps_sndacks, tcpstat.tcps_delack); |
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190 lprint(" %6d URG only packets\r\n", tcpstat.tcps_sndurg); |
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191 lprint(" %6d window probe packets\r\n", tcpstat.tcps_sndprobe); |
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192 lprint(" %6d window update packets\r\n", tcpstat.tcps_sndwinup); |
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193 lprint(" %6d control (SYN/FIN/RST) packets\r\n", tcpstat.tcps_sndctrl); |
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194 lprint(" %6d times tcp_output did nothing\r\n", tcpstat.tcps_didnuttin); |
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195 |
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196 lprint(" %6d packets received\r\n", tcpstat.tcps_rcvtotal); |
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197 lprint(" %6d acks (for %d bytes)\r\n", |
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198 tcpstat.tcps_rcvackpack, tcpstat.tcps_rcvackbyte); |
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199 lprint(" %6d duplicate acks\r\n", tcpstat.tcps_rcvdupack); |
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200 lprint(" %6d acks for unsent data\r\n", tcpstat.tcps_rcvacktoomuch); |
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201 lprint(" %6d packets received in sequence (%d bytes)\r\n", |
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202 tcpstat.tcps_rcvpack, tcpstat.tcps_rcvbyte); |
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203 lprint(" %6d completely duplicate packets (%d bytes)\r\n", |
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204 tcpstat.tcps_rcvduppack, tcpstat.tcps_rcvdupbyte); |
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205 |
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206 lprint(" %6d packets with some duplicate data (%d bytes duped)\r\n", |
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207 tcpstat.tcps_rcvpartduppack, tcpstat.tcps_rcvpartdupbyte); |
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208 lprint(" %6d out-of-order packets (%d bytes)\r\n", |
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209 tcpstat.tcps_rcvoopack, tcpstat.tcps_rcvoobyte); |
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210 lprint(" %6d packets of data after window (%d bytes)\r\n", |
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211 tcpstat.tcps_rcvpackafterwin, tcpstat.tcps_rcvbyteafterwin); |
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212 lprint(" %6d window probes\r\n", tcpstat.tcps_rcvwinprobe); |
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213 lprint(" %6d window update packets\r\n", tcpstat.tcps_rcvwinupd); |
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214 lprint(" %6d packets received after close\r\n", tcpstat.tcps_rcvafterclose); |
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215 lprint(" %6d discarded for bad checksums\r\n", tcpstat.tcps_rcvbadsum); |
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216 lprint(" %6d discarded for bad header offset fields\r\n", |
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217 tcpstat.tcps_rcvbadoff); |
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218 |
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219 lprint(" %6d connection requests\r\n", tcpstat.tcps_connattempt); |
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220 lprint(" %6d connection accepts\r\n", tcpstat.tcps_accepts); |
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221 lprint(" %6d connections established (including accepts)\r\n", tcpstat.tcps_connects); |
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222 lprint(" %6d connections closed (including %d drop)\r\n", |
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223 tcpstat.tcps_closed, tcpstat.tcps_drops); |
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224 lprint(" %6d embryonic connections dropped\r\n", tcpstat.tcps_conndrops); |
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225 lprint(" %6d segments we tried to get rtt (%d succeeded)\r\n", |
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226 tcpstat.tcps_segstimed, tcpstat.tcps_rttupdated); |
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227 lprint(" %6d retransmit timeouts\r\n", tcpstat.tcps_rexmttimeo); |
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228 lprint(" %6d connections dropped by rxmt timeout\r\n", |
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229 tcpstat.tcps_timeoutdrop); |
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230 lprint(" %6d persist timeouts\r\n", tcpstat.tcps_persisttimeo); |
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231 lprint(" %6d keepalive timeouts\r\n", tcpstat.tcps_keeptimeo); |
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232 lprint(" %6d keepalive probes sent\r\n", tcpstat.tcps_keepprobe); |
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233 lprint(" %6d connections dropped by keepalive\r\n", tcpstat.tcps_keepdrops); |
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234 lprint(" %6d correct ACK header predictions\r\n", tcpstat.tcps_predack); |
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235 lprint(" %6d correct data packet header predictions\n", tcpstat.tcps_preddat); |
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236 lprint(" %6d TCP cache misses\r\n", tcpstat.tcps_socachemiss); |
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237 |
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238 |
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239 /* lprint(" Packets received too short: %d\r\n", tcpstat.tcps_rcvshort); */ |
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240 /* lprint(" Segments dropped due to PAWS: %d\r\n", tcpstat.tcps_pawsdrop); */ |
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241 |
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242 } |
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243 |
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244 static void |
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245 udpstats(void) |
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246 { |
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247 lprint(" \r\n"); |
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248 |
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249 lprint("UDP stats:\r\n"); |
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250 lprint(" %6d datagrams received\r\n", udpstat.udps_ipackets); |
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251 lprint(" %6d with packets shorter than header\r\n", udpstat.udps_hdrops); |
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252 lprint(" %6d with bad checksums\r\n", udpstat.udps_badsum); |
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253 lprint(" %6d with data length larger than packet\r\n", udpstat.udps_badlen); |
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254 lprint(" %6d UDP socket cache misses\r\n", udpstat.udpps_pcbcachemiss); |
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255 lprint(" %6d datagrams sent\r\n", udpstat.udps_opackets); |
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256 } |
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257 |
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258 static void |
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259 icmpstats(void) |
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260 { |
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261 lprint(" \r\n"); |
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262 lprint("ICMP stats:\r\n"); |
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263 lprint(" %6d ICMP packets received\r\n", icmpstat.icps_received); |
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264 lprint(" %6d were too short\r\n", icmpstat.icps_tooshort); |
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265 lprint(" %6d with bad checksums\r\n", icmpstat.icps_checksum); |
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266 lprint(" %6d with type not supported\r\n", icmpstat.icps_notsupp); |
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267 lprint(" %6d with bad type feilds\r\n", icmpstat.icps_badtype); |
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268 lprint(" %6d ICMP packets sent in reply\r\n", icmpstat.icps_reflect); |
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269 } |
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270 |
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271 static void |
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272 mbufstats(void) |
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273 { |
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274 struct mbuf *m; |
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275 int i; |
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276 |
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277 lprint(" \r\n"); |
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278 |
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279 lprint("Mbuf stats:\r\n"); |
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280 |
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281 lprint(" %6d mbufs allocated (%d max)\r\n", mbuf_alloced, mbuf_max); |
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282 |
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283 i = 0; |
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284 for (m = m_freelist.m_next; m != &m_freelist; m = m->m_next) |
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285 i++; |
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286 lprint(" %6d mbufs on free list\r\n", i); |
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287 |
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288 i = 0; |
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289 for (m = m_usedlist.m_next; m != &m_usedlist; m = m->m_next) |
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290 i++; |
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291 lprint(" %6d mbufs on used list\r\n", i); |
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292 lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued); |
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293 } |
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294 |
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295 static void |
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296 sockstats(void) |
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297 { |
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298 char buff[256]; |
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299 int n; |
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300 struct socket *so; |
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301 |
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302 lprint(" \r\n"); |
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303 |
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304 lprint( |
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305 "Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n"); |
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306 |
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307 for (so = tcb.so_next; so != &tcb; so = so->so_next) { |
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308 |
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309 n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE"); |
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310 while (n < 17) |
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311 buff[n++] = ' '; |
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312 buff[17] = 0; |
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313 lprint("%s %3d %15s %5d ", |
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314 buff, so->s, |
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315 inet_ntoa(so->so_laddr), ntohs(so->so_lport)); |
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316 lprint("%15s %5d %5d %5d\r\n", |
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317 inet_ntoa(so->so_faddr), ntohs(so->so_fport), |
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318 so->so_rcv.sb_cc, so->so_snd.sb_cc); |
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319 } |
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320 |
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321 for (so = udb.so_next; so != &udb; so = so->so_next) { |
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322 |
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323 n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000); |
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324 while (n < 17) |
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325 buff[n++] = ' '; |
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326 buff[17] = 0; |
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327 lprint("%s %3d %15s %5d ", |
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328 buff, so->s, |
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329 inet_ntoa(so->so_laddr), ntohs(so->so_lport)); |
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330 lprint("%15s %5d %5d %5d\r\n", |
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331 inet_ntoa(so->so_faddr), ntohs(so->so_fport), |
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332 so->so_rcv.sb_cc, so->so_snd.sb_cc); |
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333 } |
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334 } |
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335 #endif |
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336 |
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337 #ifndef CONFIG_QEMU |
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338 void |
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339 slirp_exit(exit_status) |
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340 int exit_status; |
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341 { |
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342 struct ttys *ttyp; |
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343 |
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344 DEBUG_CALL("slirp_exit"); |
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345 DEBUG_ARG("exit_status = %d", exit_status); |
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346 |
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347 if (dostats) { |
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348 lprint_print = (int (*) _P((void *, const char *, va_list)))vfprintf; |
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349 if (!dfd) |
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350 debug_init("slirp_stats", 0xf); |
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351 lprint_arg = (char **)&dfd; |
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352 |
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353 ipstats(); |
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354 tcpstats(); |
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355 udpstats(); |
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356 icmpstats(); |
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357 mbufstats(); |
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358 sockstats(); |
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359 allttystats(); |
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360 vjstats(); |
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361 } |
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362 |
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363 for (ttyp = ttys; ttyp; ttyp = ttyp->next) |
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364 tty_detached(ttyp, 1); |
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365 |
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366 if (slirp_forked) { |
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367 /* Menendez time */ |
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368 if (kill(getppid(), SIGQUIT) < 0) |
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369 lprint("Couldn't kill parent process %ld!\n", |
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370 (long) getppid()); |
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371 } |
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372 |
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373 /* Restore the terminal if we gotta */ |
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374 if(slirp_tty_restore) |
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375 tcsetattr(0,TCSANOW, &slirp_tty_settings); /* NOW DAMMIT! */ |
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376 exit(exit_status); |
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377 } |
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378 #endif |
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379 |
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380 void |
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381 slirp_stats(void) |
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382 { |
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383 #ifdef LOG_ENABLED |
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384 ipstats(); |
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385 tcpstats(); |
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386 udpstats(); |
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387 icmpstats(); |
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388 mbufstats(); |
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389 sockstats(); |
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390 #else |
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391 lprint("SLIRP statistics code not compiled.\n"); |
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392 #endif |
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393 } |