func NewIcmp(testMode bool, results publisher.Client) (*Icmp, error) {
icmp := &Icmp{}
icmp.initDefaults()
if !testMode {
err := icmp.setFromConfig(config.ConfigSingleton.Protocols.Icmp)
if err != nil {
return nil, err
}
}
var err error
icmp.localIps, err = common.LocalIpAddrs()
if err != nil {
logp.Err("icmp", "Error getting local IP addresses: %s", err)
icmp.localIps = []net.IP{}
}
logp.Debug("icmp", "Local IP addresses: %s", icmp.localIps)
var removalListener = func(k common.Key, v common.Value) {
icmp.expireTransaction(k.(hashableIcmpTuple), v.(*icmpTransaction))
}
icmp.transactions = common.NewCacheWithRemovalListener(
icmp.transactionTimeout,
protos.DefaultTransactionHashSize,
removalListener)
icmp.transactions.StartJanitor(icmp.transactionTimeout)
icmp.results = results
return icmp, nil
}
func (proc *ProcessesWatcher) Init(config ProcsConfig) error {
proc.proc_prefix = ""
proc.PortProcMap = make(map[uint16]PortProcMapping)
proc.LastMapUpdate = time.Now()
proc.ReadFromProc = config.Enabled
if proc.ReadFromProc {
if runtime.GOOS != "linux" {
proc.ReadFromProc = false
logp.Info("Disabled /proc/ reading because not on linux")
} else {
logp.Info("Process matching enabled")
}
}
if config.Max_proc_read_freq == 0 {
proc.MaxReadFreq = 10 * time.Millisecond
} else {
proc.MaxReadFreq = time.Duration(config.Max_proc_read_freq) *
time.Millisecond
}
if config.Refresh_pids_freq == 0 {
proc.RefreshPidsFreq = 1 * time.Second
} else {
proc.RefreshPidsFreq = time.Duration(config.Refresh_pids_freq) *
time.Millisecond
}
// Read the local IP addresses
var err error
proc.LocalAddrs, err = common.LocalIpAddrs()
if err != nil {
logp.Err("Error getting local IP addresses: %s", err)
proc.LocalAddrs = []net.IP{}
}
if proc.ReadFromProc {
for _, procConfig := range config.Monitored {
grepper := procConfig.Cmdline_grep
if len(grepper) == 0 {
grepper = procConfig.Process
}
p, err := NewProcess(proc, procConfig.Process, grepper, time.Tick(proc.RefreshPidsFreq))
if err != nil {
logp.Err("NewProcess: %s", err)
} else {
proc.Processes = append(proc.Processes, p)
}
}
}
return nil
}