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-rwxr-xr-xscripts/vyatta-interfaces.pl24
1 files changed, 21 insertions, 3 deletions
diff --git a/scripts/vyatta-interfaces.pl b/scripts/vyatta-interfaces.pl
index 5a17be04..cf74a7d8 100755
--- a/scripts/vyatta-interfaces.pl
+++ b/scripts/vyatta-interfaces.pl
@@ -41,6 +41,7 @@ use Getopt::Long;
use POSIX;
use NetAddr::IP;
use Fcntl;
+use Socket;
use strict;
use warnings;
@@ -114,6 +115,10 @@ sub is_ip_configured {
return ($found > 0);
}
+sub is_ipv4 {
+ return index($_[0],':') < 0;
+}
+
sub is_ip_duplicate {
my ($intf, $ip) = @_;
@@ -465,9 +470,22 @@ sub is_valid_addr_commit {
die "Can't configure address on interface that is slaved to bonding interface.\n"
if (defined($bond));
- my $dhcp = grep { /^dhcp$/ } @addrs;
- my $static_v4 = grep { my $v = is_ip_v4_or_v6($_);
- defined($v) && $v == 4 } @addrs;
+ # Map of all the ip addresses
+ my %ipaddr_hash = map { $_ => 1 } getIP();
+
+ my ($dhcp, $static_v4);
+ foreach my $addr (@addrs) {
+ next if ($addr eq 'dhcpv6');
+
+ if ($addr eq 'dhcp') {
+ $dhcp = 1;
+ } elsif ($ipaddr_hash{$addr} && !is_ip_configured($ifname, $addr)) {
+ die "Error: duplicate address [$addr]\n";
+ } elsif ( is_ipv4($addr) ) {
+ $static_v4 = 1;
+ }
+ }
+
die "Can't configure static IPv4 address and DHCP on the same interface.\n"
if ($static_v4 && $dhcp);