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lib/connections: Try TCP punchthrough (fixes #4259) (#5753)

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This commit is contained in:
Audrius Butkevicius
2020-06-16 09:17:07 +02:00
committed by GitHub
parent d09c8f0d0a
commit f619a7f4cc
14 changed files with 288 additions and 150 deletions
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cmd/stdiscosrv/apisrv_test.go
+32 -9
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@@ -14,7 +14,7 @@ import (
func TestFixupAddresses(t *testing.T) {
cases := []struct {
remote net.IP
remote *net.TCPAddr
in []string
out []string
}{
@@ -22,37 +22,53 @@ func TestFixupAddresses(t *testing.T) {
in: []string{"tcp://1.2.3.4:22000"},
out: []string{"tcp://1.2.3.4:22000"},
}, { // unspecified replaced by remote
remote: net.ParseIP("1.2.3.4"),
remote: addr("1.2.3.4", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://1.2.3.4:22000", "tcp://192.0.2.42:22000"},
}, { // unspecified not used as replacement
remote: net.ParseIP("0.0.0.0"),
remote: addr("0.0.0.0", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // unspecified not used as replacement
remote: net.ParseIP("::"),
remote: addr("::", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // localhost not used as replacement
remote: net.ParseIP("127.0.0.1"),
remote: addr("127.0.0.1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // localhost not used as replacement
remote: net.ParseIP("::1"),
remote: addr("::1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // multicast not used as replacement
remote: net.ParseIP("224.0.0.1"),
remote: addr("224.0.0.1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // multicast not used as replacement
remote: net.ParseIP("ff80::42"),
remote: addr("ff80::42", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // explicitly announced weirdness is also filtered
remote: net.ParseIP("192.0.2.42"),
remote: addr("192.0.2.42", 22000),
in: []string{"tcp://:22000", "tcp://127.1.2.3:22000", "tcp://[::1]:22000", "tcp://[ff80::42]:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // port remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://0.0.0.0:0"},
out: []string{"tcp://123.123.123.123:9000"},
}, { // unspecified port remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://:0"},
out: []string{"tcp://123.123.123.123:9000"},
}, { // empty remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://"},
out: []string{},
}, { // port only remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://44.44.44.44:0"},
out: []string{"tcp://44.44.44.44:9000"},
},
}
@@ -63,3 +79,10 @@ func TestFixupAddresses(t *testing.T) {
}
}
}
func addr(host string, port int) *net.TCPAddr {
return &net.TCPAddr{
IP: net.ParseIP(host),
Port: port,
}
}