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Use global variables in provider setup

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@6291 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep 2007-05-08 20:36:57 +00:00
parent f4df6dce05
commit 95c4bec713
3 changed files with 47 additions and 17 deletions
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53
Shorewall-perl/Shorewall/Chains.pm
View File

@ -110,6 +110,7 @@ our @EXPORT = qw( STANDARD
insertnatjump
get_interface_address
get_interface_addresses
set_global_variables
create_netfilter_load
@policy_chains
@ -1715,6 +1716,43 @@ sub emitr( $ ) {
}
}
#
# Generate function that sets global variables
#
sub set_global_variables() {
my $nonempty = 0;
emitj( 'set_global_variables()',
'{'
);
push_indent;
#
# Establish the values of shell variables used in the following shell commands and/or 'here documents' input.
#
for ( values %interfaceaddr ) {
emit $_;
$nonempty = 1;
}
for ( values %interfaceaddrs ) {
emit $_;
$nonempty = 1;
}
for ( values %interfacenets ) {
emit $_;
$nonempty = 1;
}
emit "true" unless $nonempty;
pop_indent;
emit "}\n";
}
#
# Generate the netfilter input
#
@ -1728,21 +1766,6 @@ sub create_netfilter_load() {
save_progress_message "Preparing iptables-restore input...";
#
# Establish the values of shell variables used in the following shell commands and/or 'here documents' input.
#
for ( values %interfaceaddr ) {
emit $_;
}
for ( values %interfaceaddrs ) {
emit $_;
}
for ( values %interfacenets ) {
emit $_;
}
emit '';
#
# We always write the input into a file then pass the file to iptables-restore. That way, if things go wrong,

6
Shorewall-perl/Shorewall/Providers.pm
View File

@ -177,9 +177,10 @@ sub setup_providers() {
}
if ( $gateway eq 'detect' ) {
my $variable = get_interface_address $interface;
emitj ( "gateway=\$(detect_gateway $interface)\n",
'if [ -n "$gateway" ]; then',
" run_ip route replace \$gateway src \$(find_first_interface_address $interface) dev $interface table $number",
" run_ip route replace $variable dev $interface table $number",
" run_ip route add default via \$gateway dev $interface table $number",
'else',
" fatal_error \"Unable to detect the gateway through interface $interface\"",
@ -187,7 +188,8 @@ sub setup_providers() {
$gateway = '$gateway';
} elsif ( $gateway && $gateway ne '-' ) {
validate_address $gateway;
emit "run_ip route replace $gateway src \$(find_first_interface_address $interface) dev $interface table $number";
my $variable = get_interface_address $interface;
emit "run_ip route replace $gateway src $variable dev $interface table $number";
emit "run_ip route add default via $gateway dev $interface table $number";
} else {
$gateway = '';

5
Shorewall-perl/compiler.pl
View File

@ -577,6 +577,8 @@ sub generate_script_3() {
emit "}\n";
set_global_variables;
progress_message2 "Creating iptables-restore input...";
create_netfilter_load;
@ -585,6 +587,9 @@ sub generate_script_3() {
push_indent;
emit<<'EOF';
set_global_variables;
setup_routing_and_traffic_shaping;
if [ $COMMAND = restore ]; then