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TUN inbound's autoSystemWfpBlockLeak: Drop "/0"; Ports have to be 1-65535

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"tcp/0" and "udp/0" no longer stand for all ports, which "tcp" and "udp"
already say: no syntactic sugar. Port 0 is rejected like any port outside
1-65535. Ranges keep being checked strictly: both ends within 1-65535, the
left one not greater than the right one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
patterniha
2026-11-02 12:49:56 +03:30
co-authored by Claude Opus 5.5
parent 2933b0c8d5
commit 9ffa0f0552
4 changed files with 12 additions and 10 deletions
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proxy/tun/wfp_leak_test.go
+2 -1
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@@ -20,7 +20,7 @@ func TestExpandWfpBlockLeak(t *testing.T) {
{[]string{"tcp/53"}, []string{"tcp/53"}, true},
{[]string{"windnsclient"}, []string{"windnsclient"}, true},
{[]string{"ALL"}, []string{"all"}, true},
{[]string{"tcp", "TCP/0", "udp/0", "UDP"}, []string{"tcp", "udp"}, true},
{[]string{"tcp", "TCP", "UDP"}, []string{"tcp", "udp"}, true},
{[]string{"tcp/1-65535", "udp/1-65535"}, []string{"tcp", "udp"}, true},
{[]string{"udp/10-20", "udp/53-53", "tcp/50-60"}, []string{"udp/10-20", "udp/53", "tcp/50-60"}, true},
{[]string{"tcp/54-60", "udp/1-52"}, []string{"tcp/54-60", "udp/1-52"}, false},
@@ -43,6 +43,7 @@ func TestExpandWfpBlockLeak(t *testing.T) {
for _, value := range []string{
"", "ip", "tcp/", "udp/65536", "tcp/-1", "tcp/+53", "tcp/53/1", "udp/abc", "icmp/0", "icmp/8", "tcp:53", " dns",
"tcp/0-10", "tcp/20-10", "tcp/5-", "tcp/-5", "tcp/1-2-3", "tcp/1-65536", "udp/ 53", "all/0",
"tcp/0", "udp/0", "tcp/00", "udp/0-0", "udp/65535-1",
} {
if _, err := ExpandWfpBlockLeak([]string{value}); err == nil {
t.Errorf("%q was accepted", value)