1 | #!/usr/bin/perl -w
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2 | #
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3 | # $Id$
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4 | # Copyright B. Cornec 2005-2014
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5 | # Provided under the GPL v2
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6 | #
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7 | # Get the complete network configuration of the system
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8 | #
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9 | use strict;
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10 | use IO::Interface::Simple;
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11 | use Net::IPv4Addr qw( :all );;
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12 | use ProjectBuilder::Base;
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13 |
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14 | =pod
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15 |
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16 | =head1 NAME
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17 |
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18 | mr-net-get-config keeps track of the network configuration of the system studied
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19 |
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20 | =head1 DESCRIPTION
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21 |
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22 | mr-net-get-config keeps track of the network configuration of the system studied wrt a network share passed as first parameter and store the result in the file given as second parameter (typically /tmp/mondorestore.cfg)
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23 |
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24 | =head1 SYNOPSIS
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25 |
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26 | mr-net-get-config server-ip:/export /path/to/file
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27 |
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28 | =head1 ARGUMENTS
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29 |
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30 | =over 4
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31 |
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32 | =item B<server-ip:/export>
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33 |
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34 | This is the IP address of the network server, followed by a ':' and the exported directory
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35 |
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36 | =item B</path/to/file>
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37 |
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38 | This is the path of the configuration file into which we want to store the network configuration
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39 |
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40 | =back
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41 |
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42 | =head1 WEB SITES
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43 |
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44 | The main Web site of the project is available at L<http://www.mondorescue.org>. Bug reports should be filled using the trac instance of the project at L<http://trac.mondorescue.org/>.
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45 |
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46 | =head1 USER MAILING LIST
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47 |
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48 | For community exchanges around MondoRescue please use the list L<http://sourceforge.net/mailarchive/forum.php?forum_name=mondo-devel>
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49 |
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50 | =head1 AUTHORS
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51 |
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52 | The MondoRescue team lead by Bruno Cornec L<mailto:bruno@mondorescue.org>.
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53 |
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54 | =head1 COPYRIGHT
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55 |
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56 | MondoRescue is distributed under the GPL v2.0 license or later,
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57 | described in the file C<COPYING> included with the distribution.
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58 |
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59 | =cut
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60 |
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61 | my $verbose = undef;
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62 | if ((defined $ARGV[0]) && ($ARGV[0] eq "-v")) {
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63 | $verbose = 1;
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64 | shift @ARGV;
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65 | }
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66 |
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67 | if ((not defined $ARGV[0]) || (not defined $ARGV[1])) {
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68 | die "Syntax: mr-net-get-config [proto:]server-ip:/export /path/to/file";
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69 | }
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70 |
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71 | open(CFG, ">> $ARGV[1]") || die "Unable to append into $ARGV[1]: $!";
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72 |
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73 | my ($netfs_proto,$netfs_server_ip,$netfs_server_mount);
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74 | # Protocol for sharing is NFS by default
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75 | $netfs_proto = "nfs";
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76 |
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77 | my ($scheme, $account, $host, $port, $path) = pb_get_uri($ARGV[0]);
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78 |
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79 | # We need to loop on all if to see which one is on the same LAN as the server
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80 | for my $if (IO::Interface::Simple->interfaces) {
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81 | # Skip fake interfaces
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82 | next if (not defined $if->address);
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83 | my $netfs_ipaddr = $if->address;
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84 | my $netfs_netmask = $if->netmask;
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85 | my $netfs_broadcast = $if->broadcast;
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86 | my $netfs_hwaddr = $if->hwaddr;
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87 | if (defined $verbose) {
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88 | print "interface = $if\n";
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89 | print "--\n";
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90 | print "addr = ",$netfs_ipaddr,"\n",
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91 | "broadcast = ",$netfs_broadcast,"\n",
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92 | "netmask = ",$netfs_netmask,"\n",
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93 | "dstaddr = ",$if->dstaddr,"\n",
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94 | "hwaddr = ",$netfs_hwaddr,"\n",
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95 | "mtu = ",$if->mtu,"\n",
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96 | "metric = ",$if->metric,"\n",
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97 | "index = ",$if->index,"\n";
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98 | print "is running\n" if $if->is_running;
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99 | print "is broadcast\n" if $if->is_broadcast;
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100 | print "is p-to-p\n" if $if->is_pt2pt;
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101 | print "is loopback\n" if $if->is_loopback;
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102 | print "is promiscuous\n" if $if->is_promiscuous;
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103 | print "is multicast\n" if $if->is_multicast;
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104 | print "is notrailers\n" if $if->is_notrailers;
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105 | print "is noarp\n" if $if->is_noarp;
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106 | print "--\n";
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107 | }
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108 | if (ipv4_in_network($if->address, $if->netmask, $host)) {
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109 | print "Netfs server $host is in network $netfs_ipaddr/$netfs_netmask\n";
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110 | # So generate conf file
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111 | print CFG "netfs-dev $if\n";
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112 | print CFG "netfs-proto $scheme\n";
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113 | print CFG "netfs-client-ipaddr $netfs_ipaddr\n";
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114 | print CFG "netfs-client-netmask $netfs_netmask\n";
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115 | print CFG "netfs-client-broadcast $netfs_broadcast\n";
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116 | print CFG "netfs-client-hwaddr $netfs_hwaddr\n";
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117 | print CFG "netfs-server-mount $ARGV[0]\n";
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118 | print CFG "netfs-server-user $account\n";
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119 | print CFG "netfs-server-path $path\n";
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120 | print CFG "netfs-server-ipaddr $host\n";
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121 | open(ROUTE, "/proc/net/route") || die "Unable to read /proc/net/route: $!";
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122 | while (<ROUTE>) {
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123 | my ($iface,$dest,$gw,$foo) = split(/\s+/,$_);
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124 | # Keep only default route
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125 | next if ($dest !~ /^00000000$/);
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126 | $gw =~ s/([A-z0-9]{2})([A-z0-9]{2})([A-z0-9]{2})([A-z0-9]{2})/hex($4).".".hex($3).".".hex($2).".".hex($1)/eg;
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127 | print CFG "netfs-client-defgw $gw\n";
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128 | }
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129 | close(ROUTE);
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130 | last if (not defined $verbose);
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131 | }
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132 | }
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133 | close(CFG);
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