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wgengine/magicsock: don't upgrade to linuxBatchingConn on Android (#13161)

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In a93dc6cdb10bcc87742011d3746660f06cf8cd1e tryUpgradeToBatchingConn()
moved to build tag gated files, but the runtime.GOOS condition excluding
Android was removed unintentionally from batching_conn_linux.go. Add it
back.

Updates tailscale/corp#22348

Signed-off-by: Jordan Whited <jordan@tailscale.com>
This commit is contained in:
Jordan Whited 2024-08-15 14:54:25 -07:00 committed by GitHub
parent cc136a58ea
commit ccf091e4a6
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1 changed files with 5 additions and 0 deletions
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5
wgengine/magicsock/batching_conn_linux.go
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@ -9,6 +9,7 @@ import (
"fmt"
"net"
"net/netip"
"runtime"
"strings"
"sync"
"sync/atomic"
@ -366,6 +367,10 @@ func setGSOSizeInControl(control *[]byte, gsoSize uint16) {
// tryUpgradeToBatchingConn probes the capabilities of the OS and pconn, and
// upgrades pconn to a *linuxBatchingConn if appropriate.
func tryUpgradeToBatchingConn(pconn nettype.PacketConn, network string, batchSize int) nettype.PacketConn {
if runtime.GOOS != "linux" {
// Exclude Android.
return pconn
}
if network != "udp4" && network != "udp6" {
return pconn
}