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all: detect JetKVM and specialize a handful of things for it

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Updates #16524

Change-Id: I183428de8c65d7155d82979d2d33f031c22e3331
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2025-07-10 11:14:08 -07:00
committed by Brad Fitzpatrick
parent bebc796e6c
commit fbc6a9ec5a
10 changed files with 89 additions and 12 deletions
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10
net/tstun/tun_linux.go
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@@ -17,6 +17,14 @@ import (
func init() {
tunDiagnoseFailure = diagnoseLinuxTUNFailure
modprobeTunHook.Set(func() error {
_, err := modprobeTun()
return err
})
}
func modprobeTun() ([]byte, error) {
return exec.Command("/sbin/modprobe", "tun").CombinedOutput()
}
func diagnoseLinuxTUNFailure(tunName string, logf logger.Logf, createErr error) {
@@ -36,7 +44,7 @@ func diagnoseLinuxTUNFailure(tunName string, logf logger.Logf, createErr error)
kernel := utsReleaseField(&un)
logf("Linux kernel version: %s", kernel)
modprobeOut, err := exec.Command("/sbin/modprobe", "tun").CombinedOutput()
modprobeOut, err := modprobeTun()
if err == nil {
logf("'modprobe tun' successful")
// Either tun is currently loaded, or it's statically