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Implement BALANCE table

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2011-10-08 13:54:39 -07:00
parent 8ec8056268
commit e6b120a805
1 changed files with 26 additions and 23 deletions
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35
Shorewall/Perl/Shorewall/Providers.pm
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@ -45,6 +45,7 @@ our $VERSION = 'MODULEVERSION';
use constant { LOCAL_TABLE => 255, use constant { LOCAL_TABLE => 255,
MAIN_TABLE => 254, MAIN_TABLE => 254,
DEFAULT_TABLE => 253, DEFAULT_TABLE => 253,
BALANCE_TABLE => 250,
UNSPEC_TABLE => 0 UNSPEC_TABLE => 0
}; };
@ -93,6 +94,7 @@ sub initialize( $ ) {
%providers = ( local => { number => LOCAL_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } , %providers = ( local => { number => LOCAL_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } ,
main => { number => MAIN_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } , main => { number => MAIN_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } ,
default => { number => DEFAULT_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } , default => { number => DEFAULT_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } ,
balance => { number => BALANCE_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } ,
unspec => { number => UNSPEC_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } ); unspec => { number => UNSPEC_TABLE , mark => 0 , optional => 0 ,routes => [], rules => [] } );
@providers = (); @providers = ();
} }
@ -347,23 +349,17 @@ sub process_a_provider() {
$mtu = "mtu $1 "; $mtu = "mtu $1 ";
} elsif ( $option =~ /^fallback=(\d+)$/ ) { } elsif ( $option =~ /^fallback=(\d+)$/ ) {
fatal_error q('fallback' is not available in IPv6) if $family == F_IPV6; fatal_error q('fallback' is not available in IPv6) if $family == F_IPV6;
if ( $config{USE_DEFAULT_RT} ) {
warning_message "'fallback' is ignored when USE_DEFAULT_RT=Yes";
} else {
$default = $1; $default = $1;
$default_balance = 0;
fatal_error 'fallback must be non-zero' unless $default; fatal_error 'fallback must be non-zero' unless $default;
}
} elsif ( $option eq 'fallback' ) { } elsif ( $option eq 'fallback' ) {
fatal_error q('fallback' is not available in IPv6) if $family == F_IPV6; fatal_error q('fallback' is not available in IPv6) if $family == F_IPV6;
if ( $config{USE_DEFAULT_RT} ) {
warning_message "'fallback' is ignored when USE_DEFAULT_RT=Yes";
} else {
$default = -1; $default = -1;
} $default_balance = 0;
} elsif ( $option eq 'local' ) { } elsif ( $option eq 'local' ) {
$local = 1; $local = 1;
$track = 0 if $config{TRACK_PROVIDERS}; $track = 0 if $config{TRACK_PROVIDERS};
$default_balance = 0 if$config{USE_DEFAULT_RT}; $default_balance = 0 if $config{USE_DEFAULT_RT};
} else { } else {
fatal_error "Invalid option ($option)"; fatal_error "Invalid option ($option)";
} }
@ -563,14 +559,15 @@ sub add_a_provider( $$ ) {
emit "run_ip route add default via $gateway src $address dev $physical ${mtu}table $number $realm"; emit "run_ip route add default via $gateway src $address dev $physical ${mtu}table $number $realm";
} }
balance_default_route( $balance , $gateway, $physical, $realm ) if $balance; if ( $balance ) {
balance_default_route( $balance , $gateway, $physical, $realm );
if ( $default > 0 ) { } elsif ( $default > 0 ) {
balance_fallback_route( $default , $gateway, $physical, $realm ); balance_fallback_route( $default , $gateway, $physical, $realm );
} elsif ( $default ) { } elsif ( $default ) {
emit ''; emit '';
if ( $gateway ) { if ( $gateway ) {
if ( $family == F_IPV4 ) { if ( $family == F_IPV4 ) {
emit qq(run_ip route replace $gateway dev $physical table ) . DEFAULT_TABLE;
emit qq(run_ip route replace default via $gateway src $address dev $physical table ) . DEFAULT_TABLE . qq( metric $number); emit qq(run_ip route replace default via $gateway src $address dev $physical table ) . DEFAULT_TABLE . qq( metric $number);
} else { } else {
emit qq(qt \$IP -6 route del default via $gateway src $address dev $physical table ) . DEFAULT_TABLE . qq( metric $number); emit qq(qt \$IP -6 route del default via $gateway src $address dev $physical table ) . DEFAULT_TABLE . qq( metric $number);
@ -581,6 +578,8 @@ sub add_a_provider( $$ ) {
emit qq(run_ip route add default table ) . DEFAULT_TABLE . qq( dev $physical metric $number); emit qq(run_ip route add default table ) . DEFAULT_TABLE . qq( dev $physical metric $number);
emit qq(echo "qt \$IP -$family route del default dev $physical table ) . DEFAULT_TABLE . qq(" >> \${VARDIR}/undo_${table}_routing); emit qq(echo "qt \$IP -$family route del default dev $physical table ) . DEFAULT_TABLE . qq(" >> \${VARDIR}/undo_${table}_routing);
} }
$default = 1;
} }
unless ( $local ) { unless ( $local ) {
@ -630,7 +629,7 @@ sub add_a_provider( $$ ) {
push_indent; push_indent;
if ( $balance || $default ) { if ( $balance || $default ) {
$tbl = $default || $config{USE_DEFAULT_RT} ? DEFAULT_TABLE : MAIN_TABLE; $tbl = $default ? DEFAULT_TABLE : $config{USE_DEFAULT_RT} ? BALANCE_TABLE : MAIN_TABLE;
$weight = $balance ? $balance : $default; $weight = $balance ? $balance : $default;
if ( $gateway ) { if ( $gateway ) {
@ -702,7 +701,7 @@ sub add_a_provider( $$ ) {
" > $undo" ); " > $undo" );
if ( $balance || $default ) { if ( $balance || $default ) {
$tbl = $fallback || ( $config{USE_DEFAULT_RT} ? DEFAULT_TABLE : MAIN_TABLE ); $tbl = $default ? DEFAULT_TABLE : $config{USE_DEFAULT_RT} ? BALANCE_TABLE : MAIN_TABLE;
$weight = $balance ? $balance : $default; $weight = $balance ? $balance : $default;
my $via = 'via'; my $via = 'via';
@ -915,11 +914,13 @@ sub finish_providers() {
if ( $config{USE_DEFAULT_RT} ) { if ( $config{USE_DEFAULT_RT} ) {
emit ( 'run_ip rule add from ' . ALLIP . ' table ' . MAIN_TABLE . ' pref 999', emit ( 'run_ip rule add from ' . ALLIP . ' table ' . MAIN_TABLE . ' pref 999',
'run_ip rule add from ' . ALLIP . ' table ' . BALANCE_TABLE . ' pref 32765',
"\$IP -$family rule del from " . ALLIP . ' table ' . MAIN_TABLE . ' pref 32766', "\$IP -$family rule del from " . ALLIP . ' table ' . MAIN_TABLE . ' pref 32766',
qq(echo "qt \$IP -$family rule add from ) . ALLIP . ' table ' . MAIN_TABLE . ' pref 32766" >> ${VARDIR}/undo_main_routing', qq(echo "qt \$IP -$family rule add from ) . ALLIP . ' table ' . MAIN_TABLE . ' pref 32766" >> ${VARDIR}/undo_main_routing',
qq(echo "qt \$IP -$family rule del from ) . ALLIP . ' table ' . MAIN_TABLE . ' pref 999" >> ${VARDIR}/undo_main_routing', qq(echo "qt \$IP -$family rule del from ) . ALLIP . ' table ' . MAIN_TABLE . ' pref 999" >> ${VARDIR}/undo_main_routing',
qq(echo "qt \$IP -$family rule del from ) . ALLIP . ' table ' . BALANCE_TABLE . ' pref 32765" >> ${VARDIR}/undo_balance_routing',
'' ); '' );
$table = DEFAULT_TABLE; $table = BALANCE_TABLE;
} }
emit ( 'if [ -n "$DEFAULT_ROUTE" ]; then' ); emit ( 'if [ -n "$DEFAULT_ROUTE" ]; then' );
@ -970,6 +971,8 @@ sub finish_providers() {
emit( " progress_message \"Fallback route '\$(echo \$FALLBACK_ROUTE | sed 's/\$\\s*//')' Added\"", emit( " progress_message \"Fallback route '\$(echo \$FALLBACK_ROUTE | sed 's/\$\\s*//')' Added\"",
'fi', 'fi',
'' ); '' );
} elsif ( $config{USE_DEFAULT_RT} ) {
emit "qt \$IP -$family route del default table " . DEFAULT_TABLE;
} }
unless ( $config{KEEP_RT_TABLES} ) { unless ( $config{KEEP_RT_TABLES} ) {
@ -982,7 +985,7 @@ sub finish_providers() {
'#', '#',
LOCAL_TABLE . "\tlocal", LOCAL_TABLE . "\tlocal",
MAIN_TABLE . "\tmain", MAIN_TABLE . "\tmain",
DEFAULT_TABLE . "\tdefault", $config{USE_DEFAULT_RT} ? ( DEFAULT_TABLE . "\tdefault\n" . BALANCE_TABLE . "\tbalance" ) : DEFAULT_TABLE . "\tdefault",
"0\tunspec", "0\tunspec",
'#', '#',
'# local', '# local',