func (table *BpfTable) keyToBytes(keyStr string) ([]byte, error) {
mod := table.module.p
key_size := C.bpf_table_key_size_id(mod, table.id)
key := make([]byte, key_size)
keyP := unsafe.Pointer(&key[0])
keyCS := C.CString(keyStr)
defer C.free(unsafe.Pointer(keyCS))
r := C.bpf_table_key_sscanf(mod, table.id, keyCS, keyP)
if r != 0 {
//Warn.Printf("key type is \"%s\"\n", C.GoString(C.bpf_table_key_desc_id(mod, table.id)))
return nil, fmt.Errorf("error scanning key (%v) from string", keyStr)
}
return key, nil
}
func (table *BpfTable) keyToBytes(keyX interface{}) ([]byte, error) {
mod := table.module.p
key_size := C.bpf_table_key_size_id(mod, table.id)
keyStr, ok := keyX.(string)
if !ok {
return nil, fmt.Errorf("table key must be a string")
}
key := make([]byte, key_size)
keyP := unsafe.Pointer(&key[0])
keyCS := C.CString(keyStr)
defer C.free(unsafe.Pointer(keyCS))
r := C.bpf_table_key_sscanf(mod, table.id, keyCS, keyP)
if r != 0 {
return nil, fmt.Errorf("error scanning key from string")
}
return key, nil
}