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annotate packages/net/common/current/src/network_support.c @ 3292:7f8e529b4d82 default tip

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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //==========================================================================
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2 //
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3 // network_support.c
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4 //
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5 // Misc network support functions
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6 //
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7 //==========================================================================
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8 // ####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later
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16 // version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT
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19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License
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24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use
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28 // macros or inline functions from this file, or you compile this file
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29 // and link it with other works to produce a work based on this file,
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30 // this file does not by itself cause the resulting work to be covered by
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31 // the GNU General Public License. However the source code for this file
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32 // must still be made available in accordance with section (3) of the GNU
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33 // General Public License v2.
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34 //
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35 // This exception does not invalidate any other reasons why a work based
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36 // on this file might be covered by the GNU General Public License.
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37 // -------------------------------------------
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38 // ####ECOSGPLCOPYRIGHTEND####
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39 //==========================================================================
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40 //#####DESCRIPTIONBEGIN####
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41 //
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42 // Author(s): gthomas
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43 // Contributors: gthomas, sorin@netappi.com ("Sorin Babeanu"), hmt, jlarmour,
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44 // andrew.lunn@ascom.ch
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45 // Date: 2000-01-10
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46 // Purpose:
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47 // Description:
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48 //
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49 //
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50 //####DESCRIPTIONEND####
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51 //
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52 //==========================================================================
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53
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54 // BOOTP support
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55
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56 #include <pkgconf/net.h>
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57 #undef _KERNEL
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58 #include <sys/param.h>
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59 #include <sys/socket.h>
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60 #include <sys/ioctl.h>
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61 #include <sys/errno.h>
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62
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63 #include <net/if.h>
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64 #include <netinet/in.h>
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65 #include <netinet/ip.h>
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66 #include <netinet/ip_icmp.h>
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67 #include <net/route.h>
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68
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69 #include <cyg/infra/diag.h>
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70 #include <cyg/kernel/kapi.h>
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71
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72 #include <stdio.h> // for 'sprintf()'
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73
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74 #include <bootp.h>
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75 #include <network.h>
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76 #include <arpa/inet.h>
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77
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78 #ifdef CYGPKG_IO_PCMCIA
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79 #include <cyg/io/eth/netdev.h>
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80 #endif
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81
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82 #ifdef CYGPKG_NET_DHCP
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83 #include <dhcp.h>
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84 #endif
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85
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86 #ifdef CYGPKG_NS_DNS
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87 #include <pkgconf/ns_dns.h>
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88 #endif
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89
208
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90 #ifdef CYGHWR_NET_DRIVER_ETH0
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91 struct bootp eth0_bootp_data;
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92 cyg_bool_t eth0_up = false;
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93 const char *eth0_name = "eth0";
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94 #endif
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95 #ifdef CYGHWR_NET_DRIVER_ETH1
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96 struct bootp eth1_bootp_data;
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97 cyg_bool_t eth1_up = false;
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98 const char *eth1_name = "eth1";
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99 #endif
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100
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101 #define _string(s) #s
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102 #define string(s) _string(s)
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103
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104 #ifndef CYGPKG_LIBC_STDIO
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105 #define perror(s) diag_printf(#s ": %s\n", strerror(errno))
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106 #endif
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107
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108 #ifdef CYGPKG_NET_NLOOP
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109 #if 0 < CYGPKG_NET_NLOOP
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110 //
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111 // Initialize loopback interface ---------- Added by sorin@netappi.com
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112 //
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113 cyg_bool_t init_loopback_interface(int lo)
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114 {
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115 struct sockaddr_in *addrp;
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116 struct ifreq ifr;
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117 int s;
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118 int one = 1;
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119 struct ecos_rtentry route;
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120 struct in_addr netmask, gateway;
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121
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122 s = socket(AF_INET, SOCK_DGRAM, 0);
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123 if (s < 0) {
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124 perror("socket");
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125 return false;
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126 }
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127 if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one))) {
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128 perror("setsockopt");
957
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129 close(s);
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130 return false;
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131 }
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132
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133 addrp = (struct sockaddr_in *) &ifr.ifr_addr;
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134 memset(addrp, 0, sizeof(*addrp));
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135 addrp->sin_family = AF_INET;
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136 addrp->sin_len = sizeof(*addrp);
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137 addrp->sin_port = 0;
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138 // Make an address 127.0.<lo>.1 to manage multiple loopback ifs.
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139 // (There is normally only 1, so it's the standard 127.0.0.1)
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140 addrp->sin_addr.s_addr = htonl((0x100 * lo) + INADDR_LOOPBACK) ;
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141
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142 #if CYGPKG_NET_NLOOP > 1
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143 // Init the one we were told to
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144 sprintf(ifr.ifr_name, "lo%d", lo);
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145 #else
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146 strcpy(ifr.ifr_name, "lo0");
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147 #endif
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148
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149 if (ioctl(s, SIOCSIFADDR, &ifr)) {
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150 perror("SIOCIFADDR");
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diff changeset
151 close(s);
208
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152 return false;
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153 }
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154
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155 #if 1 < CYGPKG_NET_NLOOP
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156 // We cheat to make different nets for multiple loopback devs
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157 addrp->sin_addr.s_addr = netmask.s_addr = htonl(IN_CLASSC_NET);
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158 #else
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159 //
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160 addrp->sin_addr.s_addr = netmask.s_addr = htonl(IN_CLASSA_NET);
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161 #endif
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162 if (ioctl(s, SIOCSIFNETMASK, &ifr)) {
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163 perror("SIOCSIFNETMASK");
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164 return false;
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165 }
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166 ifr.ifr_flags = IFF_UP | IFF_BROADCAST | IFF_RUNNING;
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167 if (ioctl(s, SIOCSIFFLAGS, &ifr)) {
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168 perror("SIOCSIFFLAGS");
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169 close(s);
208
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170 return false;
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171 }
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172
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173 gateway.s_addr = htonl(INADDR_LOOPBACK);
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174 memset(&route, 0, sizeof(route));
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175 addrp->sin_family = AF_INET;
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176 addrp->sin_len = sizeof(*addrp);
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177 addrp->sin_port = 0;
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178 addrp->sin_addr.s_addr = htonl((0x100 * lo) + INADDR_LOOPBACK) & netmask.s_addr;
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179 memcpy(&route.rt_dst, addrp, sizeof(*addrp));
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180 addrp->sin_addr = netmask;
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181 memcpy(&route.rt_genmask, addrp, sizeof(*addrp));
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182 addrp->sin_addr = gateway;
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183 memcpy(&route.rt_gateway, addrp, sizeof(*addrp));
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184
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185 route.rt_dev = ifr.ifr_name;
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186 route.rt_flags = RTF_UP|RTF_GATEWAY;
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187 route.rt_metric = 0;
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188
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189 if (ioctl(s, SIOCADDRT, &route)) {
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190 diag_printf("Route - dst: %s", inet_ntoa(((struct sockaddr_in *)&route.rt_dst)->sin_addr));
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191 diag_printf(", mask: %s", inet_ntoa(((struct sockaddr_in *)&route.rt_genmask)->sin_addr));
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192 diag_printf(", gateway: %s\n", inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr));
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193 if (errno != EEXIST) {
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194 perror("SIOCADDRT 3");
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195 close(s);
208
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196 return false;
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197 }
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198 }
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199 close(s);
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200 return true;
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201 }
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202 #endif
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203 #endif
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204
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205
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206 //
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207 // Internal function which builds up a fake BOOTP database for
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208 // an interface.
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209 //
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210
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211 static unsigned char *
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212 add_tag(unsigned char *vp,
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213 unsigned char tag,
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214 void *val,
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215 int len)
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216 {
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217 int i;
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218 unsigned char *xp = (unsigned char *)val;
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219 *vp++ = tag;
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220 *vp++ = len;
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221 for (i = 0; i < len; i++) {
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222 *vp++ = *xp++;
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223 }
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224 return vp;
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225 }
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226
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227 void
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228 build_bootp_record(struct bootp *bp,
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229 const char *if_name,
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230 const char *addrs_ip,
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231 const char *addrs_netmask,
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232 const char *addrs_broadcast,
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233 const char *addrs_gateway,
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234 const char *addrs_server)
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235 {
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236 int i, s;
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237 in_addr_t addr;
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238 unsigned char *vp;
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239 unsigned char cookie[] = VM_RFC1048;
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240 struct ifreq ifr;
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241
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242 bzero(bp, sizeof(struct bootp));
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243 bp->bp_op = BOOTREPLY;
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244 bp->bp_htype = HTYPE_ETHERNET;
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245 bp->bp_hlen = 6;
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246
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247 // Query the hardware address
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248 for (i = 0; i < bp->bp_hlen; i++) {
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249 bp->bp_chaddr[i] = 0xFF; // Unknown
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250 }
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251 s = socket(AF_INET, SOCK_DGRAM, 0);
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252 if (s >= 0) {
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253 strcpy(ifr.ifr_name, if_name);
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254 if (ioctl(s, SIOCGIFHWADDR, &ifr) >= 0) {
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255 bcopy(ifr.ifr_hwaddr.sa_data, bp->bp_chaddr, bp->bp_hlen);
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256 }
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257 close(s);
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258 }
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259
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260 // Fill in the provided IP addresses
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261 bp->bp_ciaddr.s_addr = inet_addr(addrs_ip);
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262 bp->bp_yiaddr.s_addr = inet_addr(addrs_ip);
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263 bp->bp_siaddr.s_addr = inet_addr(addrs_server);
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264 bp->bp_giaddr.s_addr = inet_addr(addrs_gateway);
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265 vp = &bp->bp_vend[0];
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266 bcopy(&cookie, vp, sizeof(cookie));
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267 vp += sizeof(cookie);
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268 addr = inet_addr(addrs_netmask);
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269 vp = add_tag(vp, TAG_SUBNET_MASK, &addr, sizeof(in_addr_t));
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270 addr = inet_addr(addrs_broadcast);
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271 vp = add_tag(vp, TAG_IP_BROADCAST, &addr, sizeof(in_addr_t));
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272 addr = inet_addr(addrs_gateway);
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273 vp = add_tag(vp, TAG_GATEWAY, &addr, sizeof(in_addr_t));
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274 *vp = TAG_END;
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275 }
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276
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277
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278 //
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279 // Initialize network interface[s] using BOOTP/DHCP
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280 //
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281 void
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282 init_all_network_interfaces(void)
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283 {
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284 static volatile int in_init_all_network_interfaces = 0;
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285 #ifdef CYGPKG_IO_PCMCIA
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286 cyg_netdevtab_entry_t *t;
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287 #endif // CYGPKG_IO_PCMCIA
957
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
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288 #ifdef CYGOPT_NET_IPV6_ROUTING_THREAD
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
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289 int rs_wait = 40;
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diff changeset
290 #endif
208
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291
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292 cyg_scheduler_lock();
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293 while ( in_init_all_network_interfaces ) {
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294 // Another thread is doing this...
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295 cyg_scheduler_unlock();
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296 cyg_thread_delay( 10 );
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297 cyg_scheduler_lock();
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298 }
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299 in_init_all_network_interfaces = 1;
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300 cyg_scheduler_unlock();
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301
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302 #ifdef CYGHWR_NET_DRIVER_ETH0
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303 if ( ! eth0_up ) { // Make this call idempotent
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304 #ifdef CYGPKG_IO_PCMCIA
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305 if ((t = eth_drv_netdev("eth0")) != (cyg_netdevtab_entry_t *)NULL) {
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306 int tries = 0;
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307 while (t->status != CYG_NETDEVTAB_STATUS_AVAIL) {
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308 if (tries == 0) {
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309 diag_printf("... Waiting for PCMCIA device 'eth0'\n");
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310 }
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311 if (++tries == 5) {
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312 diag_printf("... Giving up on PCMCIA device 'eth0'\n");
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313 goto bail_eth0;
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314 }
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315 cyg_thread_delay(100);
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316 }
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317 }
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318 #endif // CYGPKG_IO_PCMCIA
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319 #ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP
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320 // Perform a complete initialization, using BOOTP/DHCP
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321 eth0_up = true;
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322 #ifdef CYGHWR_NET_DRIVER_ETH0_DHCP
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323 eth0_dhcpstate = 0; // Says that initialization is external to dhcp
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324 if (do_dhcp(eth0_name, &eth0_bootp_data, &eth0_dhcpstate, &eth0_lease))
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325 #else
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326 #ifdef CYGPKG_NET_DHCP
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327 eth0_dhcpstate = DHCPSTATE_BOOTP_FALLBACK;
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328 // so the dhcp machine does no harm if called
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329 #endif
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330 if (do_bootp(eth0_name, &eth0_bootp_data))
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331 #endif
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332 {
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333 #ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP_SHOW
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334 show_bootp(eth0_name, &eth0_bootp_data);
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335 #endif
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336 } else {
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337 diag_printf("BOOTP/DHCP failed on eth0\n");
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338 eth0_up = false;
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339 }
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340 #elif defined(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP)
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341 eth0_up = true;
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342 build_bootp_record(&eth0_bootp_data,
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343 eth0_name,
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344 string(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP),
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345 string(CYGHWR_NET_DRIVER_ETH0_ADDRS_NETMASK),
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346 string(CYGHWR_NET_DRIVER_ETH0_ADDRS_BROADCAST),
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347 string(CYGHWR_NET_DRIVER_ETH0_ADDRS_GATEWAY),
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348 string(CYGHWR_NET_DRIVER_ETH0_ADDRS_SERVER));
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349 show_bootp(eth0_name, &eth0_bootp_data);
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350 #endif
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351 #ifdef CYGPKG_IO_PCMCIA
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352 bail_eth0:
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353 #endif
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354 }
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355 #endif // CYGHWR_NET_DRIVER_ETH0
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356 #ifdef CYGHWR_NET_DRIVER_ETH1
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357 if ( ! eth1_up ) { // Make this call idempotent
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358 #ifdef CYGPKG_IO_PCMCIA
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359 if ((t = eth_drv_netdev("eth1")) != (cyg_netdevtab_entry_t *)NULL) {
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360 int tries = 0;
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361 while (t->status != CYG_NETDEVTAB_STATUS_AVAIL) {
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362 if (tries == 0) {
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363 diag_printf("... Waiting for PCMCIA device 'eth1'\n");
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364 }
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365 if (++tries == 5) {
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366 diag_printf("... Giving up on PCMCIA device 'eth1'\n");
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367 goto bail_eth1;
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368 }
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369 cyg_thread_delay(100);
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370 }
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371 }
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372 #endif // CYGPKG_IO_PCMCIA
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373 #ifdef CYGHWR_NET_DRIVER_ETH1_BOOTP
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374 // Perform a complete initialization, using BOOTP/DHCP
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375 eth1_up = true;
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376 #ifdef CYGHWR_NET_DRIVER_ETH1_DHCP
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377 eth1_dhcpstate = 0; // Says that initialization is external to dhcp
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378 if (do_dhcp(eth1_name, &eth1_bootp_data, &eth1_dhcpstate, &eth1_lease))
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379 #else
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380 #ifdef CYGPKG_NET_DHCP
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381 eth1_dhcpstate = DHCPSTATE_BOOTP_FALLBACK;
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382 // so the dhcp machine does no harm if called
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383 #endif
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384 if (do_bootp(eth1_name, &eth1_bootp_data))
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385 #endif
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386 {
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387 #ifdef CYGHWR_NET_DRIVER_ETH1_BOOTP_SHOW
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388 show_bootp(eth1_name, &eth1_bootp_data);
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389 #endif
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390 } else {
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391 diag_printf("BOOTP/DHCP failed on eth1\n");
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392 eth1_up = false;
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393 }
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394 #elif defined(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP)
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395 eth1_up = true;
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396 build_bootp_record(&eth1_bootp_data,
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397 eth1_name,
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398 string(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP),
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399 string(CYGHWR_NET_DRIVER_ETH1_ADDRS_NETMASK),
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400 string(CYGHWR_NET_DRIVER_ETH1_ADDRS_BROADCAST),
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401 string(CYGHWR_NET_DRIVER_ETH1_ADDRS_GATEWAY),
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402 string(CYGHWR_NET_DRIVER_ETH1_ADDRS_SERVER));
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403 show_bootp(eth1_name, &eth1_bootp_data);
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diff changeset
404 #endif
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405 #ifdef CYGPKG_IO_PCMCIA
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406 bail_eth1:
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diff changeset
407 #endif
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408 }
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409 #endif // CYGHWR_NET_DRIVER_ETH1
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diff changeset
410 #ifdef CYGHWR_NET_DRIVER_ETH0
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411 #ifndef CYGHWR_NET_DRIVER_ETH0_MANUAL
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412 if (eth0_up) {
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413 if (!init_net(eth0_name, &eth0_bootp_data)) {
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414 diag_printf("Network initialization failed for eth0\n");
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415 eth0_up = false;
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416 }
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417 #ifdef CYGHWR_NET_DRIVER_ETH0_IPV6_PREFIX
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418 if (!init_net_IPv6(eth0_name, &eth0_bootp_data,
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419 string(CYGHWR_NET_DRIVER_ETH0_IPV6_PREFIX))) {
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420 diag_printf("Static IPv6 network initialization failed for eth0\n");
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421 eth0_up = false; // ???
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422 }
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423 #endif
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424 }
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425 #endif
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426 #endif
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427 #ifdef CYGHWR_NET_DRIVER_ETH1
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428 #ifndef CYGHWR_NET_DRIVER_ETH1_MANUAL
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429 if (eth1_up) {
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430 if (!init_net(eth1_name, &eth1_bootp_data)) {
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431 diag_printf("Network initialization failed for eth1\n");
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432 eth1_up = false;
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433 }
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434 #ifdef CYGHWR_NET_DRIVER_ETH1_IPV6_PREFIX
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435 if (!init_net_IPv6(eth1_name, &eth1_bootp_data,
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436 string(CYGHWR_NET_DRIVER_ETH1_IPV6_PREFIX))) {
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437 diag_printf("Static IPv6 network initialization failed for eth1\n");
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438 eth1_up = false; // ???
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439 }
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440 #endif
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441 }
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442 #endif
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443 #endif
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444
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445 #ifdef CYGPKG_NET_NLOOP
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446 #if 0 < CYGPKG_NET_NLOOP
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447 {
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448 static int loop_init = 0;
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449 int i;
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450 if ( 0 == loop_init++ )
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451 for ( i = 0; i < CYGPKG_NET_NLOOP; i++ )
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452 init_loopback_interface( i );
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453 }
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454 #endif
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455 #endif
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456
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457 #ifdef CYGOPT_NET_DHCP_DHCP_THREAD
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458 dhcp_start_dhcp_mgt_thread();
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459 #endif
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460
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461 #ifdef CYGOPT_NET_IPV6_ROUTING_THREAD
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462 ipv6_start_routing_thread();
957
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
parents: 504
diff changeset
463
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
parents: 504
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464 // Wait for router solicit process to happen.
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
parents: 504
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465 while (rs_wait-- && !cyg_net_get_ipv6_advrouter(NULL)) {
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
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466 cyg_thread_delay(10);
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
parents: 504
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467 }
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
asl
parents: 504
diff changeset
468 if (rs_wait == 0 ) {
db3e0a2fda2f 2003-04-12 Andrew Lunn <andrew.lunn@ascom.ch>
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469 diag_printf("No router solicit received\n");
1007
16d247bb9c70 * src/ifaddrs.c (getifaddrs): Fill in flags, netmask and broadcast
asl
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470 } else {
16d247bb9c70 * src/ifaddrs.c (getifaddrs): Fill in flags, netmask and broadcast
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471 // Give Duplicate Address Detection time to work
16d247bb9c70 * src/ifaddrs.c (getifaddrs): Fill in flags, netmask and broadcast
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472 cyg_thread_delay(200);
16d247bb9c70 * src/ifaddrs.c (getifaddrs): Fill in flags, netmask and broadcast
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473 }
208
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474 #endif
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475
499
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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476 #ifdef CYGDAT_NS_DNS_DEFAULT_SERVER
1584
02c0aa987107 Fix for default DNS server - from Sandeep Kumar
gthomas
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477 cyg_dns_res_start(string(CYGDAT_NS_DNS_DEFAULT_SERVER));
499
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
jlarmour
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478 #endif
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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479
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
jlarmour
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480 #ifdef CYGDAT_NS_DNS_DOMAINNAME_NAME
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481 #define _NAME string(CYGDAT_NS_DNS_DOMAINNAME_NAME)
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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482 {
504
43dbc9753e8f * src/network_support.c (init_all_network_interfaces): Define buf
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483 const char buf[] = _NAME;
499
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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484 int len = strlen(_NAME);
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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485
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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486 setdomainname(buf,len);
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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487 }
87027e29073d * src/network_support.c (init_all_network_interfaces): Added
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488 #endif
208
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489 // Open the monitor to other threads.
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490 in_init_all_network_interfaces = 0;
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491
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492 }
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493
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494 // EOF network_support.c