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pkg/iptables: enable simultaneous ipv4 and ipv6

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This commit enables simultaneously managing IPv4 and IPv6 iptables
rules. This makes it possible to have peers with IPv6 allowed IPs in an
otherwise IPv4 stack and vice versa.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit is contained in:
Lucas Servén Marín
2020-03-12 15:48:01 +01:00
parent 8e8eb1a213
commit b668c1ec3e
7 changed files with 108 additions and 43 deletions
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10
pkg/iptables/fake.go
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@@ -51,12 +51,12 @@ func (f *fakeClient) AppendUnique(table, chain string, spec ...string) error {
if exists {
return nil
}
f.storage = append(f.storage, &rule{table, chain, spec})
f.storage = append(f.storage, &rule{table: table, chain: chain, spec: spec})
return nil
}
func (f *fakeClient) Delete(table, chain string, spec ...string) error {
r := &rule{table, chain, spec}
r := &rule{table: table, chain: chain, spec: spec}
for i := range f.storage {
if f.storage[i].String() == r.String() {
copy(f.storage[i:], f.storage[i+1:])
@@ -69,7 +69,7 @@ func (f *fakeClient) Delete(table, chain string, spec ...string) error {
}
func (f *fakeClient) Exists(table, chain string, spec ...string) (bool, error) {
r := &rule{table, chain, spec}
r := &rule{table: table, chain: chain, spec: spec}
for i := range f.storage {
if f.storage[i].String() == r.String() {
return true, nil
@@ -103,7 +103,7 @@ func (f *fakeClient) DeleteChain(table, name string) error {
return fmt.Errorf("cannot delete chain %s; rules exist", name)
}
}
c := &chain{table, name}
c := &chain{table: table, chain: name}
for i := range f.storage {
if f.storage[i].String() == c.String() {
copy(f.storage[i:], f.storage[i+1:])
@@ -116,7 +116,7 @@ func (f *fakeClient) DeleteChain(table, name string) error {
}
func (f *fakeClient) NewChain(table, name string) error {
c := &chain{table, name}
c := &chain{table: table, chain: name}
for i := range f.storage {
if f.storage[i].String() == c.String() {
return statusError(1)