Re-added with 0644 permissions.
This commit is contained in:
David Cantrell
parent
58c8a68e06
commit
73f5b3e6fb
517
dhcpd-conf-to-ldap
Executable file
517
dhcpd-conf-to-ldap
Executable file
@ -0,0 +1,517 @@
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#!/usr/bin/perl -w
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# Brian Masney <masneyb@ntelos.net>
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# To use this script, set your base DN below. Then run
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# ./dhcpd-conf-to-ldap.pl < /path-to-dhcpd-conf/dhcpd.conf > output-file
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# The output of this script will generate entries in LDIF format. You can use
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# the slapadd command to add these entries into your LDAP server. You will
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# definately want to double check that your LDAP entries are correct before
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# you load them into LDAP.
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# This script does not do much error checking. Make sure before you run this
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# that the DHCP server doesn't give any errors about your config file
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use Sys::Hostname;
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my $basedn = "dc=ntelos, dc=net";
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sub next_token
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{
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local ($lowercase) = @_;
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local ($token, $newline);
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do
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{
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if (!defined ($line) || length ($line) == 0)
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{
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$line = <>;
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return undef if !defined ($line);
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chop $line;
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$line_number++;
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$token_number = 0;
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}
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$line =~ s/#.*//;
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$line =~ s/^\s+//;
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$line =~ s/\s+$//;
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}
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while (length ($line) == 0);
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if (($token, $newline) = $line =~ /^(.*?)\s+(.*)/)
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{
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$line = $newline;
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}
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else
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{
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$token = $line;
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$line = '';
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}
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$token_number++;
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$token =~ y/[A-Z]/[a-z]/ if $lowercase;
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return ($token);
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}
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sub remaining_line
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{
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local ($tmp, $str);
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$str = "";
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while (($tmp = next_token (0)))
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{
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$str .= ' ' if !($str eq "");
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$str .= $tmp;
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last if $tmp =~ /;\s*$/;
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}
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$str =~ s/;$//;
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return ($str);
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}
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sub
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add_dn_to_stack
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{
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local ($dn) = @_;
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$current_dn = "$dn, $current_dn";
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}
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sub
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remove_dn_from_stack
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{
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$current_dn =~ s/^.*?,\s*//;
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}
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sub
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parse_error
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{
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print "Parse error on line number $line_number at token number $token_number\n";
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exit (1);
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}
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sub
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print_entry
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{
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return if (scalar keys %curentry == 0);
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if (!defined ($curentry{'type'}))
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{
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$host = hostname ();
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$hostdn = "cn=$host, $basedn";
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print "dn: $hostdn\n";
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print "objectClass: top\n";
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print "objectClass: dhcpServer\n";
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print "cn: $host\n";
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print "dhcpServiceDN: $current_dn\n\n";
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print "dn: $current_dn\n";
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print "cn: DHCP Config\n";
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print "objectClass: top\n";
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print "objectClass: dhcpService\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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print "dhcpPrimaryDN: $hostdn\n";
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}
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elsif ($curentry{'type'} eq 'subnet')
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{
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print "dn: $current_dn\n";
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print "cn: " . $curentry{'ip'} . "\n";
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print "objectClass: top\n";
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print "objectClass: dhcpSubnet\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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print "dhcpNetMask: " . $curentry{'netmask'} . "\n";
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if (defined ($curentry{'range'}))
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{
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print "dhcpRange: " . $curentry{'range'} . "\n";
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}
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}
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elsif ($curentry{'type'} eq 'shared-network')
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{
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print "dn: $current_dn\n";
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print "cn: " . $curentry{'descr'} . "\n";
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print "objectClass: top\n";
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print "objectClass: dhcpSharedNetwork\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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}
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elsif ($curentry{'type'} eq 'group')
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{
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print "dn: $current_dn\n";
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print "cn: group\n";
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print "objectClass: top\n";
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print "objectClass: dhcpGroup\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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}
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elsif ($curentry{'type'} eq 'host')
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{
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print "dn: $current_dn\n";
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print "cn: " . $curentry{'host'} . "\n";
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print "objectClass: top\n";
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print "objectClass: dhcpHost\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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if (defined ($curentry{'hwaddress'}))
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{
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print "dhcpHWAddress: " . $curentry{'hwaddress'} . "\n";
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}
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}
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elsif ($curentry{'type'} eq 'pool')
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{
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print "dn: $current_dn\n";
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print "cn: pool\n";
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print "objectClass: top\n";
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print "objectClass: dhcpPool\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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if (defined ($curentry{'range'}))
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{
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print "dhcpRange: " . $curentry{'range'} . "\n";
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}
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}
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elsif ($curentry{'type'} eq 'class')
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{
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print "dn: $current_dn\n";
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print "cn: " . $curentry{'class'} . "\n";
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print "objectClass: top\n";
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print "objectClass: dhcpClass\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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}
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elsif ($curentry{'type'} eq 'subclass')
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{
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print "dn: $current_dn\n";
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print "cn: " . $curentry{'subclass'} . "\n";
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print "objectClass: top\n";
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print "objectClass: dhcpSubClass\n";
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if (defined ($curentry{'options'}))
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{
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print "objectClass: dhcpOptions\n";
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}
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print "dhcpClassData: " . $curentry{'class'} . "\n";
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}
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if (defined ($curentry{'statements'}))
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{
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foreach $statement (@{$curentry{'statements'}})
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{
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print "dhcpStatements: $statement\n";
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}
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}
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if (defined ($curentry{'options'}))
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{
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foreach $statement (@{$curentry{'options'}})
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{
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print "dhcpOption: $statement\n";
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}
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}
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print "\n";
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undef (%curentry);
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}
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sub parse_netmask
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{
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local ($netmask) = @_;
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local ($i);
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if ((($a, $b, $c, $d) = $netmask =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/) != 4)
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{
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parse_error ();
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}
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$num = (($a & 0xff) << 24) |
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(($b & 0xff) << 16) |
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(($c & 0xff) << 8) |
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($d & 0xff);
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for ($i=1; $i<=32 && $num & (1 << (32 - $i)); $i++)
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{
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}
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$i--;
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return ($i);
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}
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sub parse_subnet
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{
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local ($ip, $tmp, $netmask);
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print_entry () if %curentry;
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$ip = next_token (0);
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parse_error () if !defined ($ip);
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$tmp = next_token (1);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq 'netmask');
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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$netmask = parse_netmask ($tmp);
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=$ip");
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$curentry{'type'} = 'subnet';
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$curentry{'ip'} = $ip;
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$curentry{'netmask'} = $netmask;
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}
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sub parse_shared_network
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$descr = next_token (0);
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parse_error () if !defined ($descr);
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=$descr");
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$curentry{'type'} = 'shared-network';
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$curentry{'descr'} = $descr;
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}
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sub parse_host
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$host = next_token (0);
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parse_error () if !defined ($host);
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=$host");
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$curentry{'type'} = 'host';
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$curentry{'host'} = $host;
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}
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sub parse_group
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=group");
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$curentry{'type'} = 'group';
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}
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sub parse_pool
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=pool");
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$curentry{'type'} = 'pool';
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}
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sub parse_class
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$class = next_token (0);
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parse_error () if !defined ($class);
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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$class =~ s/\"//g;
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add_dn_to_stack ("cn=$class");
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$curentry{'type'} = 'class';
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$curentry{'class'} = $class;
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}
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sub parse_subclass
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{
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local ($descr, $tmp);
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print_entry () if %curentry;
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$class = next_token (0);
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parse_error () if !defined ($class);
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$subclass = next_token (0);
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parse_error () if !defined ($subclass);
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$tmp = next_token (0);
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parse_error () if !defined ($tmp);
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parse_error () if !($tmp eq '{');
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add_dn_to_stack ("cn=$subclass");
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$curentry{'type'} = 'subclass';
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$curentry{'class'} = $class;
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$curentry{'subclass'} = $subclass;
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}
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sub parse_hwaddress
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{
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local ($type, $hw, $tmp);
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$type = next_token (0);
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parse_error () if !defined ($type);
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$hw = next_token (0);
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parse_error () if !defined ($hw);
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$hw =~ s/;$//;
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$curentry{'hwaddress'} = "$type $hw";
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}
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sub parse_range
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{
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local ($tmp, $str);
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$str = remaining_line ();
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if (!($str eq ''))
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{
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$str =~ s/;$//;
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$curentry{'range'} = $str;
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}
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}
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sub parse_statement
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{
|
||||||
|
local ($token) = shift;
|
||||||
|
local ($str);
|
||||||
|
|
||||||
|
if ($token eq 'option')
|
||||||
|
{
|
||||||
|
$str = remaining_line ();
|
||||||
|
push (@{$curentry{'options'}}, $str);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
$str = $token . " " . remaining_line ();
|
||||||
|
push (@{$curentry{'statements'}}, $str);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
my $token;
|
||||||
|
my $token_number = 0;
|
||||||
|
my $line_number = 0;
|
||||||
|
my %curentry;
|
||||||
|
|
||||||
|
$current_dn = "cn=DHCP Config, $basedn";
|
||||||
|
$curentry{'descr'} = 'DHCP Config';
|
||||||
|
$line = '';
|
||||||
|
|
||||||
|
while (($token = next_token (1)))
|
||||||
|
{
|
||||||
|
if ($token eq '}')
|
||||||
|
{
|
||||||
|
print_entry () if %curentry;
|
||||||
|
remove_dn_from_stack ();
|
||||||
|
}
|
||||||
|
elsif ($token eq 'subnet')
|
||||||
|
{
|
||||||
|
parse_subnet ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'shared-network')
|
||||||
|
{
|
||||||
|
parse_shared_network ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'class')
|
||||||
|
{
|
||||||
|
parse_class ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'subclass')
|
||||||
|
{
|
||||||
|
parse_subclass ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'pool')
|
||||||
|
{
|
||||||
|
parse_pool ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'group')
|
||||||
|
{
|
||||||
|
parse_group ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'host')
|
||||||
|
{
|
||||||
|
parse_host ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'hardware')
|
||||||
|
{
|
||||||
|
parse_hwaddress ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
elsif ($token eq 'range')
|
||||||
|
{
|
||||||
|
parse_range ();
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
parse_statement ($token);
|
||||||
|
next;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
566
linux
Executable file
566
linux
Executable file
@ -0,0 +1,566 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# dhclient-script for Linux. Dan Halbert, March, 1997.
|
||||||
|
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
|
||||||
|
# No guarantees about this. I'm a novice at the details of Linux
|
||||||
|
# networking.
|
||||||
|
|
||||||
|
# Notes:
|
||||||
|
|
||||||
|
# 0. This script is based on the netbsd script supplied with dhcp-970306.
|
||||||
|
|
||||||
|
# 1. ifconfig down apparently deletes all relevant routes and flushes
|
||||||
|
# the arp cache, so this doesn't need to be done explicitly.
|
||||||
|
|
||||||
|
# 2. The alias address handling here has not been tested AT ALL.
|
||||||
|
# I'm just going by the doc of modern Linux ip aliasing, which uses
|
||||||
|
# notations like eth0:0, eth0:1, for each alias.
|
||||||
|
|
||||||
|
# 3. I have to calculate the network address, and calculate the broadcast
|
||||||
|
# address if it is not supplied. This might be much more easily done
|
||||||
|
# by the dhclient C code, and passed on.
|
||||||
|
|
||||||
|
if [ -n "${dhc_dbus}" ]; then
|
||||||
|
/bin/dbus-send \
|
||||||
|
--system \
|
||||||
|
--dest=com.redhat.dhcp \
|
||||||
|
--type=method_call \
|
||||||
|
/com/redhat/dhcp/$interface \
|
||||||
|
com.redhat.dhcp.set \
|
||||||
|
'string:'"`env | /bin/egrep -v '^(PATH|SHLVL|_|PWD|dhc_dbus)\='`";
|
||||||
|
if (( ( dhc_dbus & 31 ) == 31 )); then
|
||||||
|
exit 0;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
|
||||||
|
function save_previous() {
|
||||||
|
if [ -e $1 ]; then
|
||||||
|
/bin/mv $1 $1.predhclient
|
||||||
|
else
|
||||||
|
echo ''> $1.predhclient
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
make_resolv_conf() {
|
||||||
|
if [ "${PEERDNS}" == "no" ]; then
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason == xRENEW ] &&
|
||||||
|
[ "$new_domain_name" == "$old_domain_name" ] &&
|
||||||
|
[ "$new_domain_name_servers" == "$old_domain_name_servers" ]; then
|
||||||
|
return;
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ -n "$new_domain_name" ] || [ -n "$new_domain_name_servers" ]; then
|
||||||
|
cp -fp /etc/resolv.conf /etc/resolv.conf.predhclient
|
||||||
|
rscf=`mktemp /tmp/XXXXXX`;
|
||||||
|
echo '; generated by /sbin/dhclient-script' > $rscf
|
||||||
|
if [ -n "$SEARCH" ]; then
|
||||||
|
echo search $SEARCH >> $rscf
|
||||||
|
else
|
||||||
|
if [ -n "$new_domain_name" ]; then
|
||||||
|
echo search $new_domain_name >> $rscf
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
for nameserver in $new_domain_name_servers; do
|
||||||
|
echo nameserver $nameserver >> $rscf
|
||||||
|
done
|
||||||
|
change_resolv_conf $rscf
|
||||||
|
rm -f $rscf
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
|
||||||
|
exit_with_hooks() {
|
||||||
|
exit_status=$1
|
||||||
|
if [ -f /etc/dhclient-exit-hooks ]; then
|
||||||
|
. /etc/dhclient-exit-hooks
|
||||||
|
fi
|
||||||
|
# probably should do something with exit status of the local script
|
||||||
|
exit $exit_status
|
||||||
|
}
|
||||||
|
|
||||||
|
# Invoke the local dhcp client enter hooks, if they exist.
|
||||||
|
if [ -f /etc/dhclient-enter-hooks ]; then
|
||||||
|
exit_status=0
|
||||||
|
. /etc/dhclient-enter-hooks
|
||||||
|
# allow the local script to abort processing of this state
|
||||||
|
# local script must set exit_status variable to nonzero.
|
||||||
|
if [ $exit_status -ne 0 ]; then
|
||||||
|
exit $exit_status
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Import Red Hat Linux configuration
|
||||||
|
cd /etc/sysconfig/network-scripts;
|
||||||
|
. /etc/sysconfig/network-scripts/network-functions
|
||||||
|
. /etc/rc.d/init.d/functions
|
||||||
|
|
||||||
|
[ -f ../network ] && . ../network
|
||||||
|
[ -f ../networking/network ] && . ../networking/network
|
||||||
|
|
||||||
|
CONFIG=$interface
|
||||||
|
|
||||||
|
need_config ${CONFIG}
|
||||||
|
|
||||||
|
if [ -f "${CONFIG}" ]; then
|
||||||
|
source_config
|
||||||
|
else
|
||||||
|
echo $"$0: configuration for $interface not found. Continuing with defaults." >&2
|
||||||
|
fi
|
||||||
|
|
||||||
|
source_config
|
||||||
|
|
||||||
|
release=`uname -r`
|
||||||
|
relmajor=`echo $release |/bin/cut -f1 -d'.'`
|
||||||
|
relminor=`echo $release |/bin/cut -f2 -d'.'`
|
||||||
|
|
||||||
|
# simple IP arithmetic functions:
|
||||||
|
|
||||||
|
function quad2num()
|
||||||
|
{
|
||||||
|
if [ $# -eq 4 ]; then
|
||||||
|
let n="$1<<24|$2<<16|$3<<8|$4"
|
||||||
|
echo $n;
|
||||||
|
return 0;
|
||||||
|
fi
|
||||||
|
echo '0';
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
function ip2num()
|
||||||
|
{
|
||||||
|
IFS='.' quad2num $1;
|
||||||
|
}
|
||||||
|
|
||||||
|
function num2ip()
|
||||||
|
{
|
||||||
|
let n="$1";
|
||||||
|
let o1='(n>>24)&0xff';
|
||||||
|
let o2='(n>>16)&0xff';
|
||||||
|
let o3='(n>>8)&0xff';
|
||||||
|
let o4='n & 0xff';
|
||||||
|
echo $o1.$o2.$o3.$o4;
|
||||||
|
}
|
||||||
|
|
||||||
|
function mask()
|
||||||
|
{
|
||||||
|
ip=$1
|
||||||
|
m=$2
|
||||||
|
let ip=`IFS='.' ip2num $ip`;
|
||||||
|
let m=`IFS='.' ip2num $m`;
|
||||||
|
let n='ip&m';
|
||||||
|
num2ip $n;
|
||||||
|
}
|
||||||
|
|
||||||
|
function mask_bits()
|
||||||
|
{
|
||||||
|
ip=$1
|
||||||
|
let ip=`IFS='.' ip2num $ip`;
|
||||||
|
let bits=0
|
||||||
|
for ((bit=1; '((ip&bit)==0) && (bits < 32)'; 'bit<<=1')) do
|
||||||
|
let bits+=1
|
||||||
|
done
|
||||||
|
let n_bits=32-bits
|
||||||
|
echo $n_bits
|
||||||
|
}
|
||||||
|
|
||||||
|
function class_bits()
|
||||||
|
{
|
||||||
|
let ip=`IFS='.' ip2num $1`;
|
||||||
|
let bits=32
|
||||||
|
let mask='255';
|
||||||
|
for ((i=0; i <= 3; i++, 'mask<<=8')); do
|
||||||
|
let v='ip&mask';
|
||||||
|
if [ "$v" -eq 0 ] ; then
|
||||||
|
let bits-=8;
|
||||||
|
else
|
||||||
|
break;
|
||||||
|
fi;
|
||||||
|
done;
|
||||||
|
echo $bits;
|
||||||
|
}
|
||||||
|
|
||||||
|
function routerReachable()
|
||||||
|
{ # Handle silly DHCP servers that give us a router not on our subnet:
|
||||||
|
router=$1
|
||||||
|
routerSubnet=`mask $router $new_subnet_mask`
|
||||||
|
mySubnet=`mask $new_ip_address $new_subnet_mask`
|
||||||
|
unreachable=0
|
||||||
|
if [ "$routerSubnet" != "$mySubnet" ]; then
|
||||||
|
unreachable=1
|
||||||
|
if /sbin/arping -f -q -I $interface -w2 $router; then
|
||||||
|
/sbin/ip route add ${router}/32 dev $interface
|
||||||
|
if [ $? -eq 0 ]; then
|
||||||
|
unreachable=0
|
||||||
|
else
|
||||||
|
/usr/bin/logger -p local7.notice -t "NET" "dhclient: failed to create host route for unreachable router $router not on subnet $mySubnet";
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
unreachable=1
|
||||||
|
if [ -x /usr/bin/logger ]; then
|
||||||
|
/usr/bin/logger -p local7.notice -t "NET" "dhclient: DHCP router $router is unreachable on DHCP subnet $mySubnet router subnet $routerSubnet";
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
return $unreachable;
|
||||||
|
}
|
||||||
|
|
||||||
|
function add_default_gateway()
|
||||||
|
{
|
||||||
|
router=$1
|
||||||
|
metric=''
|
||||||
|
if [ $# -gt 1 ] && [ "$2" -gt 0 ]; then
|
||||||
|
metric="metric $2";
|
||||||
|
fi;
|
||||||
|
if routerReachable $router ; then
|
||||||
|
/sbin/ip route replace default via $router dev $interface $metric;
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
/usr/bin/logger -p local7.notice -t "NET" 'dhclient: failed to create default route: '$router dev $interface $metric;
|
||||||
|
return 1;
|
||||||
|
else
|
||||||
|
return 0;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
function dhconfig()
|
||||||
|
{
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
|
||||||
|
[ x$alias_ip_address != x$old_ip_address ]; then
|
||||||
|
# Possible new alias. Remove old alias.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
|
||||||
|
# IP address changed. Bringing down the interface will delete all routes,
|
||||||
|
# and clear the ARP cache.
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ x$reason = xBOUND ] || [ x$reason = xREBOOT ] ||
|
||||||
|
[ x$old_ip_address != x$new_ip_address ] ||
|
||||||
|
[ x$old_subnet_mask != x$new_subnet_mask ] ||
|
||||||
|
[ x$new_network_number != x$new_network_number ] ||
|
||||||
|
[ x$old_broadcast_address != x$new_broadcast_address ] ||
|
||||||
|
[ "x$old_routers" != "x$new_routers" ] ||
|
||||||
|
[ x$old_interface_mtu != x$new_interface_mtu ] ; then
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
ifconfig $interface inet $new_ip_address $new_subnet_arg \
|
||||||
|
$new_broadcast_arg
|
||||||
|
if [ -n "$new_interface_mtu" ]; then
|
||||||
|
/sbin/ip link set $interface mtu $new_interface_mtu;
|
||||||
|
fi;
|
||||||
|
if [ -x /etc/dhclient-${interface}-up-hooks ]; then
|
||||||
|
. /etc/dhclient-${interface}-up-hooks;
|
||||||
|
elif [ -x /etc/dhclient-up-hooks ]; then
|
||||||
|
. /etc/dhclient-up-hooks;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 4 ) != 4 )); then
|
||||||
|
prefix_bits=`mask_bits $new_subnet_mask`
|
||||||
|
# Add a network route to the computed network address.
|
||||||
|
if [ $relmajor -lt 2 ] || \
|
||||||
|
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
|
||||||
|
/sbin/ip route replace ${new_network_number}/${prefix_bits} dev $interface
|
||||||
|
if [ $added_old_broadcast_route -eq 1 ]; then
|
||||||
|
/sbin/ip route del default;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
if [[ ( ( -z "$GATEWAYDEV" ) || ( "$GATEWAYDEV" = "$interface" ) ) && ( ( -z "$GATEWAY" ) || ( ( -n "$DHCLIENT_IGNORE_GATEWAY" ) && ( "$DHCLIENT_IGNORE_GATEWAY" = [Yy]* ) ) ) ]]; then
|
||||||
|
metric=${METRIC:-''};
|
||||||
|
let i=${METRIC:-0};
|
||||||
|
default_routers=()
|
||||||
|
for router in $new_routers; do
|
||||||
|
added_router=0
|
||||||
|
for r in ${default_routers[@]}; do
|
||||||
|
if [ "$r" == "$router" ]; then
|
||||||
|
added_router=1;
|
||||||
|
fi;
|
||||||
|
done
|
||||||
|
if [ -z "$router" ] || [ "$added_router" -eq 1 ] || [ `IFS=. ip2num $router` -le 0 ] || [[ ( "$router" = "$new_broadcast_address" ) && ( "$new_subnet_mask" != "255.255.255.255" ) ]]; then
|
||||||
|
continue;
|
||||||
|
fi;
|
||||||
|
default_routers=(${default_routers[@]} $router)
|
||||||
|
add_default_gateway $router $metric;
|
||||||
|
let i=i+1;
|
||||||
|
metric=$i;
|
||||||
|
done
|
||||||
|
elif [[ ( ( -z "$GATEWAYDEV" ) || ( "$GATEWAYDEV" = "$interface" ) ) && ( -n "$GATEWAY" ) ]]; then
|
||||||
|
routerSubnet=`mask $GATEWAY $new_subnet_mask`
|
||||||
|
mySubnet=`mask $new_ip_address $new_subnet_mask`
|
||||||
|
if [ "$routerSubnet" = "$mySubnet" ]; then
|
||||||
|
/sbin/ip route replace default via $GATEWAY dev $interface
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
# static routes
|
||||||
|
if [ "x$new_static_routes" != x ]; then
|
||||||
|
IFS=', ' static_routes=($new_static_routes)
|
||||||
|
route_targets=()
|
||||||
|
for((i=0; i<${#static_routes[@]}; i+=2)); do
|
||||||
|
target=${static_routes[$i]}
|
||||||
|
gateway=${static_routes[$i+1]}
|
||||||
|
metric=''
|
||||||
|
for t in ${route_targets[@]}; do
|
||||||
|
if [ $t == $target ]; then
|
||||||
|
if [ -z "$metric" ]; then
|
||||||
|
metric=1;
|
||||||
|
else
|
||||||
|
((metric=metric+1));
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
done;
|
||||||
|
if [ -n "$metric" ]; then
|
||||||
|
metric="metric $metric";
|
||||||
|
fi;
|
||||||
|
if routerReachable $gateway; then
|
||||||
|
/sbin/ip route replace ${target}/`class_bits $target` via ${gateway} dev $interface ${metric}
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
/usr/bin/logger -p local7.notice -t 'NET' 'dhclient: failed to create static route:' ${target}/`class_bits $target` via ${gateway} dev $interface ${metric};
|
||||||
|
else
|
||||||
|
route_targets=(${route_targets[@]} $target);
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
done
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
|
||||||
|
then
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
|
||||||
|
/sbin/ip route replace ${alias_ip_address}/32 dev $interface:0
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 1 ) != 1 )); then
|
||||||
|
make_resolv_conf
|
||||||
|
|
||||||
|
if [ -n "$new_host_name" ] && need_hostname; then
|
||||||
|
hostname $new_host_name
|
||||||
|
fi
|
||||||
|
fi;
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 8 ) != 8 )); then
|
||||||
|
if [ "${PEERNIS}" = no ]; then
|
||||||
|
:
|
||||||
|
elif [ -n "$new_nis_domain" ]; then
|
||||||
|
domainname "$new_nis_domain"
|
||||||
|
save_previous /etc/yp.conf
|
||||||
|
let contents=0
|
||||||
|
echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
|
||||||
|
if [ -n "$new_nis_servers" ]; then
|
||||||
|
for I in $new_nis_servers; do
|
||||||
|
echo "domain $new_nis_domain server $I" >> /etc/yp.conf
|
||||||
|
let contents=contents+1
|
||||||
|
done
|
||||||
|
else
|
||||||
|
echo "domain $new_nis_domain broadcast" >> /etc/yp.conf
|
||||||
|
let contents=contents+1
|
||||||
|
fi
|
||||||
|
level=`/sbin/runlevel`
|
||||||
|
level=${level##*\ }
|
||||||
|
if [ "$level" = "unknown" ]; then
|
||||||
|
level=1;
|
||||||
|
fi
|
||||||
|
if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ]; then
|
||||||
|
kill -HUP $yppid;
|
||||||
|
fi
|
||||||
|
elif [ -n "$new_nis_servers" ]; then
|
||||||
|
save_previous /etc/yp.conf
|
||||||
|
echo '# generated by /sbin/dhclient-script' > /etc/yp.conf
|
||||||
|
let contents=0
|
||||||
|
for I in $new_nis_servers; do
|
||||||
|
echo "ypserver $I" >> /etc/yp.conf
|
||||||
|
let contents=contents+1
|
||||||
|
done
|
||||||
|
level=`/sbin/runlevel`
|
||||||
|
level=${level##*\ }
|
||||||
|
if [ "$level" = "unknown" ]; then
|
||||||
|
level=1;
|
||||||
|
fi
|
||||||
|
if [ $contents -gt 0 ] && [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ] ; then
|
||||||
|
kill -HUP $yppid;
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 16 ) != 16 )); then
|
||||||
|
if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
|
||||||
|
if [ -n "$new_time_offset" ]; then
|
||||||
|
# DHCP option "time-offset" is requested by default and should be handled.
|
||||||
|
# The geographical zone abbreviation cannot be determined from the GMT offset,
|
||||||
|
# but the $ZONEINFO/Etc/GMT$offset file can be used - note: this disables DST.
|
||||||
|
((z=new_time_offset/3600));
|
||||||
|
((hoursWest=`printf '%+d' $z`))
|
||||||
|
if (( $hoursWest < 0 )); then
|
||||||
|
# tzdata treats negative 'hours west' as positive 'gmtoff' !
|
||||||
|
((hoursWest*=-1));
|
||||||
|
fi
|
||||||
|
tzfile=/usr/share/zoneinfo/Etc/GMT`printf '%+d' $hoursWest`;
|
||||||
|
if [ -e $tzfile ]; then
|
||||||
|
/bin/mv -f /etc/localtime /etc/localtime.predhclient;
|
||||||
|
/bin/cp -fp $tzfile /etc/localtime;
|
||||||
|
/bin/touch /etc/localtime;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
if [ "${PEERNTP}" = no ]; then
|
||||||
|
:
|
||||||
|
elif [ -n "$new_ntp_servers" ] && [ -e /etc/ntp.conf ]; then
|
||||||
|
save_previous /etc/ntp.conf
|
||||||
|
/bin/egrep -v '(^[\ \ ]*(server|fudge))|(generated by /sbin/dhclient-script)'< /etc/ntp.conf.predhclient > /etc/ntp.conf
|
||||||
|
echo '# servers generated by /sbin/dhclient-script' >> /etc/ntp.conf
|
||||||
|
localClocks=(`/bin/egrep '^[\ \ ]*server[\ \ ]+127\.127' /etc/ntp.conf.predhclient | while read s addr rest; do echo $addr; done`)
|
||||||
|
localClockFudge="`/bin/egrep '^[\ \ ]*fudge[\ \ ]+127\.127' /etc/ntp.conf.predhclient`";
|
||||||
|
for s in $new_ntp_servers ${localClocks[@]};
|
||||||
|
do
|
||||||
|
echo 'server '$s >> /etc/ntp.conf;
|
||||||
|
done
|
||||||
|
echo "$localClockFudge" >> /etc/ntp.conf;
|
||||||
|
if [ -x /usr/bin/diff ] && /usr/bin/diff -q /etc/ntp.conf /etc/ntp.conf.predhclient >/dev/null 2>&1; then
|
||||||
|
: ;
|
||||||
|
else
|
||||||
|
/sbin/service ntpd condrestart >/dev/null 2>&1
|
||||||
|
fi;
|
||||||
|
fi
|
||||||
|
fi;
|
||||||
|
}
|
||||||
|
|
||||||
|
if [ x$new_broadcast_address != x ] && [ x$new_subnet_mask != x ] && [ "$new_subnet_mask" != "255.255.255.255" ]; then
|
||||||
|
new_broadcast_arg="broadcast $new_broadcast_address"
|
||||||
|
fi
|
||||||
|
if [ x$old_broadcast_address != x ]; then
|
||||||
|
old_broadcast_arg="broadcast $old_broadcast_address"
|
||||||
|
fi
|
||||||
|
if [ x$new_subnet_mask != x ]; then
|
||||||
|
new_subnet_arg="netmask $new_subnet_mask"
|
||||||
|
fi
|
||||||
|
if [ x$old_subnet_mask != x ]; then
|
||||||
|
old_subnet_arg="netmask $old_subnet_mask"
|
||||||
|
fi
|
||||||
|
if [ x$alias_subnet_mask != x ]; then
|
||||||
|
alias_subnet_arg="netmask $alias_subnet_mask"
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xMEDIUM ]; then
|
||||||
|
# Linux doesn't do mediums (ok, ok, media).
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
added_old_broadcast_route=0;
|
||||||
|
if [ x$reason = xPREINIT ]; then
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
# Bring down alias interface. Its routes will disappear too.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
if [ x$keep_old_ip = xyes ]; then
|
||||||
|
ifconfig $interface up
|
||||||
|
elif [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ) then
|
||||||
|
ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
|
||||||
|
broadcast 255.255.255.255 up
|
||||||
|
# Add route to make broadcast work. Do not omit netmask.
|
||||||
|
/sbin/ip route replace default dev $interface && added_old_broadcast_route=1;
|
||||||
|
else
|
||||||
|
ifconfig $interface 0 up
|
||||||
|
fi
|
||||||
|
|
||||||
|
# We need to give the kernel some time to get the interface up.
|
||||||
|
# sleep 1
|
||||||
|
# I don't think this is necessary with modern kernels - no problems found during testing -
|
||||||
|
# JVD, 2005-06-17
|
||||||
|
# but just in case:
|
||||||
|
if [ -n "$DHCLIENT_DELAY" ] && [ "$DHCLIENT_DELAY" -gt 0 ] ; then
|
||||||
|
sleep $DHCLIENT_DELAY;
|
||||||
|
fi;
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi;
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
|
||||||
|
if [ -z "$new_ip_address" ] || [ -z "$interface" ] || /sbin/arping -q -f -c 2 -w 3 -D -I ${interface} ${new_ip_address}; then
|
||||||
|
exit_with_hooks 0
|
||||||
|
else
|
||||||
|
exit_with_hooks 1
|
||||||
|
fi;
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
|
||||||
|
[ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
|
||||||
|
dhconfig ;
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
|
||||||
|
|| [ x$reason = xSTOP ]; then
|
||||||
|
if [ -f /etc/resolv.conf.predhclient ]; then
|
||||||
|
change_resolv_conf /etc/resolv.conf.predhclient
|
||||||
|
rm -f /etc/resolv.conf.predhclient
|
||||||
|
fi
|
||||||
|
if [ -n "$DHCP_TIME_OFFSET_SETS_TIMEZONE" ] && [[ "$DHCP_TIME_OFFSET_SETS_TIMEZONE" = [yY1]* ]]; then
|
||||||
|
if [ -e /etc/localtime.predhclient ]; then
|
||||||
|
/bin/rm -f /etc/localtime
|
||||||
|
/bin/mv -f /etc/localtime.predhclient /etc/localtime;
|
||||||
|
/bin/touch /etc/localtime;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
if [ -f /etc/ntp.conf.predhclient ]; then
|
||||||
|
/bin/rm -f /etc/ntp.conf
|
||||||
|
/bin/mv -f /etc/ntp.conf.predhclient /etc/ntp.conf
|
||||||
|
service ntpd condrestart >/dev/null 2>&1
|
||||||
|
fi
|
||||||
|
if [ -f /etc/yp.conf.predhclient ]; then
|
||||||
|
/bin/rm -f /etc/yp.conf
|
||||||
|
/bin/mv -f /etc/yp.conf.predhclient /etc/yp.conf
|
||||||
|
level=`/sbin/runlevel`
|
||||||
|
level=${level##*\ }
|
||||||
|
if [ "$level" = "unknown" ]; then
|
||||||
|
level=1;
|
||||||
|
fi
|
||||||
|
if [[ "$level" = [0-6] ]] && /sbin/chkconfig --level=$level ypbind >/dev/null 2>&1 && [ -r /var/run/ypbind.pid ] && yppid=`cat /var/run/ypbind.pid` && [ -d /proc/${yppid} ] && [ "`if [ -x /sbin/busybox ]; then /sbin/busybox readlink /proc/${yppid}/exe; else echo /sbin/ypbind; fi`" = "/sbin/ypbind" ] ; then
|
||||||
|
kill -HUP $yppid;
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -x /etc/dhclient-${interface}-down-hooks ]; then
|
||||||
|
. /etc/dhclient-${interface}-down-hooks;
|
||||||
|
elif [ -x /etc/dhclient-down-hooks ]; then
|
||||||
|
. /etc/dhclient-down-hooks;
|
||||||
|
fi;
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
# Turn off alias interface.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
if [ x$old_ip_address != x ]; then
|
||||||
|
# Shut down interface, which will delete routes and clear arp cache.
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
fi
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
|
||||||
|
/sbin/ip route replace ${alias_ip_address}/32 $interface:0
|
||||||
|
fi
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xTIMEOUT ] && [ "x$new_routers" != 'x' ]; then
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
ifconfig $interface inet $new_ip_address $new_subnet_arg \
|
||||||
|
$new_broadcast_arg
|
||||||
|
fi;
|
||||||
|
set $new_routers
|
||||||
|
if ping -q -c 1 -w 10 -I $interface $1; then
|
||||||
|
dhconfig ;
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
fi;
|
||||||
|
exit_with_hooks 1
|
||||||
|
elif [ x$reason = xTIMEOUT ]; then
|
||||||
|
exit_with_hooks 1
|
||||||
|
fi
|
||||||
|
exit_with_hooks 0
|
||||||
223
linux.dbus-example
Executable file
223
linux.dbus-example
Executable file
@ -0,0 +1,223 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# dhclient-script for Linux. Dan Halbert, March, 1997.
|
||||||
|
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
|
||||||
|
# No guarantees about this. I'm a novice at the details of Linux
|
||||||
|
# networking.
|
||||||
|
|
||||||
|
# Notes:
|
||||||
|
|
||||||
|
# 0. This script is based on the netbsd script supplied with dhcp-970306.
|
||||||
|
|
||||||
|
# 1. ifconfig down apparently deletes all relevant routes and flushes
|
||||||
|
# the arp cache, so this doesn't need to be done explicitly.
|
||||||
|
|
||||||
|
# 2. The alias address handling here has not been tested AT ALL.
|
||||||
|
# I'm just going by the doc of modern Linux ip aliasing, which uses
|
||||||
|
# notations like eth0:0, eth0:1, for each alias.
|
||||||
|
|
||||||
|
# 3. I have to calculate the network address, and calculate the broadcast
|
||||||
|
# address if it is not supplied. This might be much more easily done
|
||||||
|
# by the dhclient C code, and passed on.
|
||||||
|
|
||||||
|
# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
|
||||||
|
# of the $1 in its args.
|
||||||
|
|
||||||
|
if [ -n "${dhc_dbus}" ]; then
|
||||||
|
/bin/dbus-send \
|
||||||
|
--system --dest=com.redhat.dhcp --type=method_call \
|
||||||
|
/com/redhat/dhcp/$interface com.redhat.dhcp.set \
|
||||||
|
'string:'"`env | /bin/egrep -v '^(PATH|SHLVL|_|PWD|dhc_dbus)\='`";
|
||||||
|
if (( ( dhc_dbus & 31 ) == 31 )); then
|
||||||
|
exit 0;
|
||||||
|
fi;
|
||||||
|
fi;
|
||||||
|
|
||||||
|
make_resolv_conf() {
|
||||||
|
if [ "x$new_domain_name" != x ] && [ x"$new_domain_name_servers" != x ]; then
|
||||||
|
echo search $new_domain_name >/etc/resolv.conf
|
||||||
|
chmod 644 /etc/resolv.conf
|
||||||
|
for nameserver in $new_domain_name_servers; do
|
||||||
|
echo nameserver $nameserver >>/etc/resolv.conf
|
||||||
|
done
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
|
||||||
|
exit_with_hooks() {
|
||||||
|
exit_status=$1
|
||||||
|
if [ -f /etc/dhclient-exit-hooks ]; then
|
||||||
|
. /etc/dhclient-exit-hooks
|
||||||
|
fi
|
||||||
|
# probably should do something with exit status of the local script
|
||||||
|
exit $exit_status
|
||||||
|
}
|
||||||
|
|
||||||
|
# Invoke the local dhcp client enter hooks, if they exist.
|
||||||
|
if [ -f /etc/dhclient-enter-hooks ]; then
|
||||||
|
exit_status=0
|
||||||
|
. /etc/dhclient-enter-hooks
|
||||||
|
# allow the local script to abort processing of this state
|
||||||
|
# local script must set exit_status variable to nonzero.
|
||||||
|
if [ $exit_status -ne 0 ]; then
|
||||||
|
exit $exit_status
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
release=`uname -r`
|
||||||
|
release=`expr $release : '\(.*\)\..*'`
|
||||||
|
relminor=`echo $release |sed -e 's/[0-9]*\.\([0-9][0-9]*\)\(\..*\)*$/\1/'`
|
||||||
|
relmajor=`echo $release |sed -e 's/\([0-9][0-9]*\)\..*$/\1/'`
|
||||||
|
|
||||||
|
if [ x$new_broadcast_address != x ]; then
|
||||||
|
new_broadcast_arg="broadcast $new_broadcast_address"
|
||||||
|
fi
|
||||||
|
if [ x$old_broadcast_address != x ]; then
|
||||||
|
old_broadcast_arg="broadcast $old_broadcast_address"
|
||||||
|
fi
|
||||||
|
if [ x$new_subnet_mask != x ]; then
|
||||||
|
new_subnet_arg="netmask $new_subnet_mask"
|
||||||
|
fi
|
||||||
|
if [ x$old_subnet_mask != x ]; then
|
||||||
|
old_subnet_arg="netmask $old_subnet_mask"
|
||||||
|
fi
|
||||||
|
if [ x$alias_subnet_mask != x ]; then
|
||||||
|
alias_subnet_arg="netmask $alias_subnet_mask"
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xMEDIUM ]; then
|
||||||
|
# Linux doesn't do mediums (ok, ok, media).
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xPREINIT ]; then
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
# Bring down alias interface. Its routes will disappear too.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )
|
||||||
|
then
|
||||||
|
ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
|
||||||
|
broadcast 255.255.255.255 up
|
||||||
|
# Add route to make broadcast work. Do not omit netmask.
|
||||||
|
route add default dev $interface netmask 0.0.0.0
|
||||||
|
else
|
||||||
|
ifconfig $interface 0 up
|
||||||
|
fi
|
||||||
|
|
||||||
|
# We need to give the kernel some time to get the interface up.
|
||||||
|
sleep 1
|
||||||
|
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
|
||||||
|
[ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
|
||||||
|
current_hostname=`hostname`
|
||||||
|
if [ x$current_hostname = x ] || \
|
||||||
|
[ x$current_hostname = x$old_host_name ]; then
|
||||||
|
if [ x$current_hostname = x ] || \
|
||||||
|
[ x$new_host_name != x$old_host_name ]; then
|
||||||
|
hostname $new_host_name
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
|
||||||
|
[ x$alias_ip_address != x$old_ip_address ]; then
|
||||||
|
# Possible new alias. Remove old alias.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
|
||||||
|
# IP address changed. Bringing down the interface will delete all routes,
|
||||||
|
# and clear the ARP cache.
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
|
||||||
|
[ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
ifconfig $interface inet $new_ip_address $new_subnet_arg \
|
||||||
|
$new_broadcast_arg
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 4 ) != 4 )); then
|
||||||
|
# Add a network route to the computed network address.
|
||||||
|
if [ $relmajor -lt 2 ] || \
|
||||||
|
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
|
||||||
|
route add -net $new_network_number $new_subnet_arg dev $interface
|
||||||
|
fi
|
||||||
|
for router in $new_routers; do
|
||||||
|
route add default gw $router
|
||||||
|
done
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
|
||||||
|
then
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
|
||||||
|
route add -host $alias_ip_address $interface:0
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 1 ) != 1 )); then
|
||||||
|
make_resolv_conf
|
||||||
|
fi
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
|
||||||
|
|| [ x$reason = xSTOP ]; then
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
# Turn off alias interface.
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
if [ x$old_ip_address != x ]; then
|
||||||
|
# Shut down interface, which will delete routes and clear arp cache.
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
fi
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
|
||||||
|
route add -host $alias_ip_address $interface:0
|
||||||
|
fi
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [ x$reason = xTIMEOUT ]; then
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
if [ x$alias_ip_address != x ]; then
|
||||||
|
ifconfig $interface:0- inet 0
|
||||||
|
fi
|
||||||
|
ifconfig $interface inet $new_ip_address $new_subnet_arg \
|
||||||
|
$new_broadcast_arg
|
||||||
|
fi
|
||||||
|
set $new_routers
|
||||||
|
############## what is -w in ping?
|
||||||
|
if ping -q -c 1 $1; then
|
||||||
|
if [ x$new_ip_address != x$alias_ip_address ] && \
|
||||||
|
[ x$alias_ip_address != x ]; then
|
||||||
|
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
|
||||||
|
route add -host $alias_ip_address dev $interface:0
|
||||||
|
fi
|
||||||
|
if [ $relmajor -lt 2 ] || \
|
||||||
|
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
|
||||||
|
route add -net $new_network_number
|
||||||
|
fi
|
||||||
|
for router in $new_routers; do
|
||||||
|
route add default gw $router
|
||||||
|
done
|
||||||
|
make_resolv_conf
|
||||||
|
exit_with_hooks 0
|
||||||
|
fi
|
||||||
|
if [ -z "${dhc_dbus}" ] || (( ( dhc_dbus & 2 ) != 2 )); then
|
||||||
|
ifconfig $interface inet 0 down
|
||||||
|
fi
|
||||||
|
exit_with_hooks 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
exit_with_hooks 0
|
||||||
Loading…
Reference in New Issue
Block a user