util

func ContainsAny ¶

func ContainsAny(s string, substrs ...string) bool

func DoWalk ¶

func DoWalk(device string, baseOid string, format string, conf *kt.SnmpConfig, connectTimeout time.Duration, retries int, log logger.ContextL) error

Does a walk of the targeted device and exits.

func GetDeviceManufacturer ¶

func GetDeviceManufacturer(server snmpWalker, log logger.ContextL) string

func GetFromConv ¶

func GetFromConv(pdu gosnmp.SnmpPDU, conv string, log logger.ContextL) (int64, string)

Handle the case of wierd ints encoded as byte arrays.

func GetIndex ¶

func GetIndex(value, prefix string) string

getIndex returns the rest of value after prefix, e.g. for 1.2.3.4.5.6 and 2.3.4, returns .5.6 Modeled on getIndex in topology-demo/devicemetrics/main.go. Prefix must occur in value, otherwise results are undefined (aka "wrong").

func InitSNMP ¶

func InitSNMP(device *kt.SnmpDeviceConfig, connectTimeout time.Duration, retries int, posit string, log logger.ContextL) (*gosnmp.GoSNMP, error)

func LoadFile ¶

func LoadFile(ctx context.Context, file string) ([]byte, error)

Utility to load a config file from various places

func ParseV3Config ¶

func ParseV3Config(v3config *kt.V3SNMPConfig) (*gosnmp.UsmSecurityParameters, gosnmp.SnmpV3MsgFlags, string, string, error)

func PrettyPrint ¶

func PrettyPrint(pdu gosnmp.SnmpPDU, format string, log logger.ContextL) string

func ReadOctetString ¶

func ReadOctetString(variable gosnmp.SnmpPDU, truncate bool) (string, bool)

func ToInt64 ¶

func ToInt64(val interface{}) int64

toInt64 converts most of the numeric types in Go (and *all* the numeric types I expect to see from snmp) to int64.

func WalkOID ¶

func WalkOID(ctx context.Context, device *kt.SnmpDeviceConfig, oid string, server *gosnmp.GoSNMP, log logger.ContextL, logName string) ([]gosnmp.SnmpPDU, error)

walk the OID subtree under a root, returning a slice of varbinds

func WriteFile ¶

func WriteFile(ctx context.Context, file string, payload []byte, perms fs.FileMode) error

Utility to write a config file to various places