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Update bridge.go #1160

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13 changes: 10 additions & 3 deletions plugins/main/bridge/bridge.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import (
"sort"
"syscall"
"time"
"strings"

"github.com/vishvananda/netlink"

Expand Down Expand Up @@ -456,9 +457,15 @@ func setupVeth(
return nil, nil, fmt.Errorf("failed to setup hairpin mode for %v: %v", hostVeth.Attrs().Name, err)
}

// set isolation mode
if err = netlink.LinkSetIsolated(hostVeth, portIsolation); err != nil {
return nil, nil, fmt.Errorf("failed to set isolated on for %v: %v", hostVeth.Attrs().Name, err)
if portIsolation {
name := hostVeth.Attrs().Name
if strings.HasPrefix(name, "veth") || strings.HasPrefix(name, "vnet") || strings.HasPrefix(name, "tap") {
if err = netlink.LinkSetIsolated(hostVeth, true); err != nil {
fmt.Fprintf(os.Stderr, "[WARN] Failed to set isolated on %s: %v\n", name, err)
} else {
fmt.Fprintf(os.Stderr, "[DEBUG] Isolation set on %s\n", name)
}
}
}

if (vlanID != 0 || len(vlans) > 0) && !preserveDefaultVlan {
Expand Down
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