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fix: engine exit when too many packets hit NFQUEUE

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Haruue 2024-02-26 16:46:50 +08:00
parent bc2e21e35d
commit bed34f94be
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1 changed files with 7 additions and 0 deletions
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7
io/nfqueue.go
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@ -12,6 +12,7 @@ import (
"github.com/coreos/go-iptables/iptables"
"github.com/florianl/go-nfqueue"
"github.com/mdlayher/netlink"
"golang.org/x/sys/unix"
)
const (
@ -152,6 +153,12 @@ func (n *nfqueuePacketIO) Register(ctx context.Context, cb PacketCallback) error
return okBoolToInt(cb(p, nil))
},
func(e error) int {
if opErr := (*netlink.OpError)(nil); errors.As(e, &opErr) {
if errors.Is(opErr.Err, unix.ENOBUFS) {
// Kernel buffer temporarily full, ignore
return 0
}
}
return okBoolToInt(cb(nil, e))
})
if err != nil {