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Add ability to respect the system route table for unsafe route on linux (#839)

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Nate Brown
2023-05-09 10:36:55 -05:00
committed by GitHub
parent 115b4b70b1
commit a9cb2e06f4
12 changed files with 173 additions and 37 deletions
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14
overlay/tun_linux_test.go
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@@ -7,19 +7,19 @@ import "testing"
var runAdvMSSTests = []struct {
name string
tun tun
tun *tun
r Route
expected int
}{
// Standard case, default MTU is the device max MTU
{"default", tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{}, 0},
{"default-min", tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{MTU: 1440}, 0},
{"default-low", tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{MTU: 1200}, 1160},
{"default", &tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{}, 0},
{"default-min", &tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{MTU: 1440}, 0},
{"default-low", &tun{DefaultMTU: 1440, MaxMTU: 1440}, Route{MTU: 1200}, 1160},
// Case where we have a route MTU set higher than the default
{"route", tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{}, 1400},
{"route-min", tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{MTU: 1440}, 1400},
{"route-high", tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{MTU: 8941}, 0},
{"route", &tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{}, 1400},
{"route-min", &tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{MTU: 1440}, 1400},
{"route-high", &tun{DefaultMTU: 1440, MaxMTU: 8941}, Route{MTU: 8941}, 0},
}
func TestTunAdvMSS(t *testing.T) {