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Correct sequencing and improve validation in set_i_vlan()

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This commit is contained in:
Eric Miller
2007-12-15 03:56:18 +00:00
parent 4bb41fc368
commit 1c33f38323
1 changed files with 25 additions and 6 deletions
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31
Info/Bridge.pm
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@@ -351,6 +351,12 @@ sub set_i_vlan {
# Store current untagged VLAN to remove it from the egress port list later
my $old_vlan_id = $i_pvid->{$bport};
# Check that haven't been given the same VLAN we are currently using
if ($old_vlan_id eq $new_vlan_id) {
$bridge->error_throw("Current PVID: $old_vlan_id and New VLAN: $new_vlan_id the same, no change.");
return undef;
}
print "Changing VLAN: $old_vlan_id to $new_vlan_id on IfIndex: $ifindex\n"
if $bridge->debug();
@@ -363,14 +369,14 @@ sub set_i_vlan {
return undef unless
($bridge->_remove_from_untagged_lists($bport));
# Remove port from old VLAN from egress list
return undef unless
($bridge->_remove_from_egress_portlist($old_vlan_id, $bport));
# Add port to egress list for VLAN
return undef unless
($bridge->_add_to_egress_portlist($new_vlan_id, $bport));
# Remove port from old VLAN from egress list
return undef unless
($bridge->_remove_from_egress_portlist($old_vlan_id, $bport));
# Add port to untagged egress list for VLAN
return undef unless
($bridge->_add_to_untagged_portlist($new_vlan_id, $bport));
@@ -385,6 +391,17 @@ sub set_i_vlan {
return undef unless ($bridge->set_i_pvid($new_vlan_id, $ifindex));
}
# We shouldn't need this, but some devices may change this during the
# action. If this occurs change it back.
my $new_vlan_p_type = $bridge->qb_i_vlan_type($bport);
unless ( $new_vlan_p_type->{$bport} =~ /admitAll/ ) {
print "Changing Acceptable Frame Type\n" if $bridge->debug();
unless ($bridge->set_qb_i_vlan_type(1, $bport)) {
$bridge->error_throw("Unable to change Acceptable Frame Type");
return undef;
}
}
print "Successfully changed VLAN: $old_vlan_id to $new_vlan_id on IfIndex: $ifindex\n" if $bridge->debug();
return 1;
}
@@ -458,6 +475,8 @@ sub _add_to_untagged_portlist {
my $iv_members = $bridge->qb_v_untagged($vlan_id);
my @untagged_list = split(//, unpack("B*", $iv_members->{$vlan_id}));
# Return if we don't need to do anything
return 1 if ( defined($untagged_list[$index-1]) and ($untagged_list[$index-1] eq "1"));
print "Original untagged list for VLAN: $vlan_id: @untagged_list \n" if $bridge->debug();
$untagged_list[$index-1] = '1';
# Some devices do not populate the portlist with all possible ports.
@@ -486,8 +505,8 @@ sub _remove_from_untagged_lists {
foreach my $vlan (keys %$iv_members) {
my @untagged_list = split(//, unpack("B*", $iv_members->{$vlan}));
print "Original untagged list for VLAN: $vlan: @untagged_list \n" if $bridge->debug();
if ( defined($untagged_list[$index-1]) and ($untagged_list[$index-1] eq "1")) {
print "Original untagged list for VLAN: $vlan: @untagged_list \n" if $bridge->debug();
$untagged_list[$index-1] = '0';
print "Modified untagged list for VLAN: $vlan: @untagged_list \n" if $bridge->debug();
my $new_untagged = pack("B*", join('', @untagged_list));
@@ -536,9 +555,9 @@ sub _remove_from_egress_portlist {
my $iv_members = $bridge->qb_v_egress($vlan_id);
my @egress_list = split(//, unpack("B*", $iv_members->{$vlan_id}));
print "Original egress list for VLAN: $vlan_id: @egress_list \n" if $bridge->debug();
# Some devices may remove automatically, so check state before set
if ( defined($egress_list[$index-1]) and ($egress_list[$index-1] eq "1")) {
print "Original egress list for VLAN: $vlan_id: @egress_list \n" if $bridge->debug();
$egress_list[$index-1] = '0';
print "Modified egress list for VLAN: $vlan_id: @egress_list \n" if $bridge->debug();
my $new_egress = pack("B*", join('', @egress_list));