84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
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package host
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import (
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"fmt"
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sockaddr "github.com/hashicorp/go-sockaddr"
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)
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// network uses go-sockaddr to capture our view of the network
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// on error, return the text of the error
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func network() (output []map[string]string) {
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ifaddrs, err := sockaddr.GetAllInterfaces()
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if err != nil {
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output = append(output, map[string]string{"error": err.Error()})
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return output
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}
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for _, inf := range ifaddrs {
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output = append(output, dumpSockAddr(inf.SockAddr))
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}
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return output
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}
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// dumpSockAddr is adapted from
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// https://github.com/hashicorp/go-sockaddr/blob/c7188e74f6acae5a989bdc959aa779f8b9f42faf/cmd/sockaddr/command/dump.go#L144-L244
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func dumpSockAddr(sa sockaddr.SockAddr) map[string]string {
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output := make(map[string]string)
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// Attributes for all SockAddr types
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for _, attr := range sockaddr.SockAddrAttrs() {
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output[string(attr)] = sockaddr.SockAddrAttr(sa, attr)
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}
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// Attributes for all IP types (both IPv4 and IPv6)
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if sa.Type()&sockaddr.TypeIP != 0 {
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ip := *sockaddr.ToIPAddr(sa)
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for _, attr := range sockaddr.IPAttrs() {
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output[string(attr)] = sockaddr.IPAddrAttr(ip, attr)
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}
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}
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if sa.Type() == sockaddr.TypeIPv4 {
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ipv4 := *sockaddr.ToIPv4Addr(sa)
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for _, attr := range sockaddr.IPv4Attrs() {
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output[string(attr)] = sockaddr.IPv4AddrAttr(ipv4, attr)
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}
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}
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if sa.Type() == sockaddr.TypeIPv6 {
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ipv6 := *sockaddr.ToIPv6Addr(sa)
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for _, attr := range sockaddr.IPv6Attrs() {
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output[string(attr)] = sockaddr.IPv6AddrAttr(ipv6, attr)
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}
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}
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if sa.Type() == sockaddr.TypeUnix {
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us := *sockaddr.ToUnixSock(sa)
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for _, attr := range sockaddr.UnixSockAttrs() {
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output[string(attr)] = sockaddr.UnixSockAttr(us, attr)
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}
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}
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// Developer-focused arguments
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{
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arg1, arg2 := sa.DialPacketArgs()
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output["DialPacket"] = fmt.Sprintf("%+q %+q", arg1, arg2)
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}
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{
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arg1, arg2 := sa.DialStreamArgs()
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output["DialStream"] = fmt.Sprintf("%+q %+q", arg1, arg2)
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}
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{
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arg1, arg2 := sa.ListenPacketArgs()
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output["ListenPacket"] = fmt.Sprintf("%+q %+q", arg1, arg2)
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}
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{
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arg1, arg2 := sa.ListenStreamArgs()
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output["ListenStream"] = fmt.Sprintf("%+q %+q", arg1, arg2)
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}
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return output
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}
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