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bind port connection details (SYS_BIND) #624

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merged 1 commit into from
Dec 6, 2022
Merged

bind port connection details (SYS_BIND) #624

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4 changes: 3 additions & 1 deletion src/observability/kubearmor.go
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Original file line number Diff line number Diff line change
Expand Up @@ -268,11 +268,13 @@ func GetKubearmorSummaryData(req *opb.Request) ([]types.SysObsProcFileData, []ty
} else if ss.Operation == "Network" {
//ExtractNwData
nwData = append(nwData, types.SysObsNwData{
InOut: ss.NwType,
NetType: ss.NwType,
Protocol: ss.Protocol,
Command: ss.Source,
PodSvcIP: ss.IP,
ServerPort: strconv.Itoa(int(ss.Port)),
BindPort: ss.BindPort,
BindAddress: ss.BindAddress,
Namespace: ss.DestNamespace,
Labels: ss.DestLabels,
Count: uint32(ss.Count),
Expand Down
27 changes: 21 additions & 6 deletions src/observability/summarizer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -11,16 +11,18 @@ import (
pb "github.com/kubearmor/KubeArmor/protobuf"
)

func extractNetworkInfoFromSystemLog(netLog pb.Log) (string, string, string, string, string, string, error) {
var ip, destNs, destLabel, port, protocol, nwrule string = "", "", "", "", "", ""
func extractNetworkInfoFromSystemLog(netLog pb.Log) (string, string, string, string, string, string, string, string, error) {
var ip, destNs, destLabel, port, bindPort, bindAddress, protocol, nwrule string = "", "", "", "", "", "", "", ""
err := errors.New("not a valid incoming/outgoing connection")

if strings.Contains(netLog.Data, "tcp_connect") || strings.Contains(netLog.Data, "SYS_CONNECT") {
nwrule = "egress"
} else if strings.Contains(netLog.Data, "tcp_accept") {
nwrule = "ingress"
} else if strings.Contains(netLog.Data, "SYS_BIND") {
nwrule = "bind"
} else {
return ip, destNs, destLabel, port, protocol, nwrule, err
return ip, destNs, destLabel, port, bindPort, bindAddress, protocol, nwrule, err
}

if strings.Contains(netLog.Data, "tcp_") {
Expand Down Expand Up @@ -49,11 +51,22 @@ func extractNetworkInfoFromSystemLog(netLog pb.Log) (string, string, string, str
}
}
}
} else if strings.Contains(netLog.Data, "SYS_BIND") {
resslice := strings.Split(netLog.Resource, " ")
for _, locres := range resslice {
if strings.Contains(locres, "sin_port") {
bindPort = strings.Split(locres, "=")[1]
}
if strings.Contains(locres, "sin_addr") {
bindAddress = strings.Split(locres, "=")[1]
}
}

} else {
return "", "", "", "", "", "", err
return "", "", "", "", "", "", "", "", err
}

return ip, destNs, destLabel, port, protocol, nwrule, nil
return ip, destNs, destLabel, port, bindPort, bindAddress, protocol, nwrule, nil
}

func convertSysLogToSysSummaryMap(syslogs []*pb.Log) {
Expand Down Expand Up @@ -111,14 +124,16 @@ func convertSysLogToSysSummaryMap(syslogs []*pb.Log) {
}

if syslog.Operation == "Network" {
ip, destNs, destLabel, portStr, protocol, nwrule, err := extractNetworkInfoFromSystemLog(*syslog)
ip, destNs, destLabel, portStr, bindPort, bindAddress, protocol, nwrule, err := extractNetworkInfoFromSystemLog(*syslog)
if err != nil {
continue
}
port, _ := strconv.ParseInt(portStr, 10, 32)
sysSummary.NwType = nwrule
sysSummary.IP = ip
sysSummary.Port = int32(port)
sysSummary.BindPort = bindPort
sysSummary.BindAddress = bindAddress
sysSummary.Protocol = protocol
sysSummary.DestNamespace = destNs
sysSummary.DestLabels = destLabel
Expand Down
18 changes: 16 additions & 2 deletions src/observability/summary.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ func GetSummaryData(request *opb.Request) (*opb.Response, error) {
fileResp := []*opb.SysProcFileSummaryData{}
inNwResp := []*opb.SysNwSummaryData{}
outNwResp := []*opb.SysNwSummaryData{}
bindNwResp := []*opb.SysNwSummaryData{}

resp.PodName = podInfo.PodName
resp.ClusterName = podInfo.ClusterName
Expand Down Expand Up @@ -57,7 +58,7 @@ func GetSummaryData(request *opb.Request) (*opb.Response, error) {

if len(nw) > 0 && strings.Contains(request.Type, "network") {
for _, loc_nw := range nw {
if loc_nw.InOut == "ingress" {
if loc_nw.NetType == "ingress" {
inNwResp = append(inNwResp, &opb.SysNwSummaryData{
Protocol: loc_nw.Protocol,
Command: loc_nw.Command,
Expand All @@ -68,7 +69,7 @@ func GetSummaryData(request *opb.Request) (*opb.Response, error) {
Count: strconv.Itoa(int(loc_nw.Count)),
UpdatedTime: loc_nw.UpdatedTime,
})
} else if loc_nw.InOut == "egress" {
} else if loc_nw.NetType == "egress" {
outNwResp = append(outNwResp, &opb.SysNwSummaryData{
Protocol: loc_nw.Protocol,
Command: loc_nw.Command,
Expand All @@ -79,13 +80,26 @@ func GetSummaryData(request *opb.Request) (*opb.Response, error) {
Count: strconv.Itoa(int(loc_nw.Count)),
UpdatedTime: loc_nw.UpdatedTime,
})
} else if loc_nw.NetType == "bind" {
bindNwResp = append(bindNwResp, &opb.SysNwSummaryData{
Protocol: loc_nw.Protocol,
Command: loc_nw.Command,
IP: loc_nw.PodSvcIP,
BindPort: loc_nw.BindPort,
BindAddress: loc_nw.BindAddress,
Labels: loc_nw.Labels,
Namespace: loc_nw.Namespace,
Count: strconv.Itoa(int(loc_nw.Count)),
UpdatedTime: loc_nw.UpdatedTime,
})
}
}
}
resp.ProcessData = procResp
resp.FileData = fileResp
resp.IngressConnection = inNwResp
resp.EgressConnection = outNwResp
resp.BindConnection = bindNwResp
}

if strings.Contains(request.Type, "ingress") || strings.Contains(request.Type, "egress") {
Expand Down
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