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wgengine: only use AmbientCaps on DSM7+

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Signed-off-by: Maisem Ali <maisem@tailscale.com>
This commit is contained in:
Maisem Ali 2021-10-18 10:13:36 -07:00 committed by Maisem Ali
parent a6d02dc122
commit 27799a1a96
1 changed files with 12 additions and 1 deletions
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13
wgengine/router/router_linux.go
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@ -156,7 +156,7 @@ func newUserspaceRouter(logf logger.Logf, tunDev tun.Device, linkMon *monitor.Mo
}
cmd := osCommandRunner{
ambientCapNetAdmin: distro.Get() == distro.Synology,
ambientCapNetAdmin: useAmbientCaps(),
}
return newUserspaceRouterAdvanced(logf, tunname, linkMon, ipt4, ipt6, cmd, supportsV6, supportsV6NAT)
@ -185,6 +185,17 @@ func newUserspaceRouterAdvanced(logf logger.Logf, tunname string, linkMon *monit
return r, nil
}
func useAmbientCaps() bool {
if distro.Get() != distro.Synology {
return false
}
v, err := strconv.Atoi(os.Getenv("SYNOPKG_DSM_VERSION_MAJOR"))
if err != nil {
return false
}
return v >= 7
}
// onIPRuleDeleted is the callback from the link monitor for when an IP policy
// rule is deleted. See Issue 1591.
//