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all: prepare for GOOS=ios in Go 1.16

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Work with either way for now on iOS (darwin/arm64 vs ios/arm64).

In February when Go 1.16 comes out we'll have a universal binary for
darwin/arm64 (macOS) and will drop support for Go 1.15 and its
darwin/amd64 meaning iOS. (it'll mean macOS).

Context:

* https://tip.golang.org/doc/go1.16#darwin
* https://github.com/golang/go/issues/38485
* https://github.com/golang/go/issues/42100
This commit is contained in:
Brad Fitzpatrick
2020-11-11 09:04:34 -08:00
parent 258b680bc5
commit 19b0cfe89e
8 changed files with 29 additions and 13 deletions
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5
wgengine/userspace.go
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@@ -397,7 +397,7 @@ func (e *userspaceEngine) handleLocalPackets(p *packet.Parsed, t *tstun.TUN) fil
return filter.Drop
}
if runtime.GOOS == "darwin" && e.isLocalAddr(p.DstIP4) {
if (runtime.GOOS == "darwin" || runtime.GOOS == "ios") && e.isLocalAddr(p.DstIP4) {
// macOS NetworkExtension directs packets destined to the
// tunnel's local IP address into the tunnel, instead of
// looping back within the kernel network stack. We have to
@@ -609,8 +609,7 @@ func forceFullWireguardConfig(numPeers int) bool {
// On iOS with large networks, it's critical, so turn on trimming.
// Otherwise we run out of memory from wireguard-go goroutine stacks+buffers.
// This will be the default later for all platforms and network sizes.
iOS := runtime.GOOS == "darwin" && version.IsMobile()
if iOS && numPeers > 50 {
if numPeers > 50 && version.OS() == "iOS" {
return false
}
return false