Remove dhcp client

This was upstreamed from Fuchsia, but it is pretty buggy and doesn't
rely on any private APIs. Thus it can be checked into the Fuchsia source
tree without forking netstack, where we can more easily iterate on (and
eventually remove) it.

PiperOrigin-RevId: 247506582
Change-Id: Ifb1b60c6c4941c374a59c5570a6a9cacf2468981

1 files changed, 0 insertions, 115 deletions

diff --git a/pkg/dhcp/dhcp_string.go b/pkg/dhcp/dhcp_string.go
deleted file mode 100644
index 29ce98593..000000000
--- a/pkg/dhcp/dhcp_string.go
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package dhcp
-
-import (
-	"bytes"
-	"fmt"
-
-	"gvisor.googlesource.com/gvisor/pkg/tcpip"
-)
-
-func (h header) String() string {
-	opts, err := h.options()
-	var msgtype dhcpMsgType
-	if err == nil {
-		msgtype, err = opts.dhcpMsgType()
-	}
-	if !h.isValid() || err != nil {
-		return fmt.Sprintf("DHCP invalid, %v %v h[1:4]=%x cookie=%x len=%d (%v)", h.op(), h.xid(), []byte(h[1:4]), []byte(h[236:240]), len(h), err)
-	}
-	buf := new(bytes.Buffer)
-	fmt.Fprintf(buf, "%v %v len=%d\n", msgtype, h.xid(), len(h))
-	fmt.Fprintf(buf, "\tciaddr:%v yiaddr:%v siaddr:%v giaddr:%v\n",
-		tcpip.Address(h.ciaddr()),
-		tcpip.Address(h.yiaddr()),
-		tcpip.Address(h.siaddr()),
-		tcpip.Address(h.giaddr()))
-	fmt.Fprintf(buf, "\tchaddr:%x", h.chaddr())
-	for _, opt := range opts {
-		fmt.Fprintf(buf, "\n\t%v", opt)
-	}
-	return buf.String()
-}
-
-func (opt option) String() string {
-	buf := new(bytes.Buffer)
-	fmt.Fprintf(buf, "%v: ", opt.code)
-	fmt.Fprintf(buf, "%x", opt.body)
-	return buf.String()
-}
-
-func (code optionCode) String() string {
-	switch code {
-	case optSubnetMask:
-		return "option(subnet-mask)"
-	case optDefaultGateway:
-		return "option(default-gateway)"
-	case optDomainNameServer:
-		return "option(dns)"
-	case optDomainName:
-		return "option(domain-name)"
-	case optReqIPAddr:
-		return "option(request-ip-address)"
-	case optLeaseTime:
-		return "option(lease-time)"
-	case optDHCPMsgType:
-		return "option(message-type)"
-	case optDHCPServer:
-		return "option(server)"
-	case optParamReq:
-		return "option(parameter-request)"
-	case optMessage:
-		return "option(message)"
-	case optClientID:
-		return "option(client-id)"
-	default:
-		return fmt.Sprintf("option(%d)", code)
-	}
-}
-
-func (o op) String() string {
-	switch o {
-	case opRequest:
-		return "op(request)"
-	case opReply:
-		return "op(reply)"
-	}
-	return fmt.Sprintf("op(UNKNOWN:%d)", int(o))
-}
-
-func (t dhcpMsgType) String() string {
-	switch t {
-	case dhcpDISCOVER:
-		return "DHCPDISCOVER"
-	case dhcpOFFER:
-		return "DHCPOFFER"
-	case dhcpREQUEST:
-		return "DHCPREQUEST"
-	case dhcpDECLINE:
-		return "DHCPDECLINE"
-	case dhcpACK:
-		return "DHCPACK"
-	case dhcpNAK:
-		return "DHCPNAK"
-	case dhcpRELEASE:
-		return "DHCPRELEASE"
-	}
-	return fmt.Sprintf("DHCP(%d)", int(t))
-}
-
-func (v xid) String() string {
-	return fmt.Sprintf("xid:%x", uint32(v))
-}