dhcp reads done, moving on to offers

server/BUILD.bazel

@@ -15,7 +15,8 @@ go_library(
         "//config",
         "//dhcp",
         "//iptools",
-        "@dev_wntrmute_git_kyle_goutils//syslog",
+        "@com_github_benbjohnson_clock//:clock",
+        "@dev_wntrmute_git_kyle_goutils//log",
         "@in_gopkg_yaml_v2//:yaml_v2",
     ],
 )

server/lease_state.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 
-	log "git.wntrmute.dev/kyle/goutils/syslog"
+	log "git.wntrmute.dev/kyle/goutils/log"
 	"git.wntrmute.dev/kyle/kdhcp/iptools"
 	"gopkg.in/yaml.v2"
 )

server/pools.go

@@ -3,8 +3,9 @@ package server
 import (
 	"fmt"
 	"net/netip"
+	"time"
 
-	log "git.wntrmute.dev/kyle/goutils/syslog"
+	log "git.wntrmute.dev/kyle/goutils/log"
 	"git.wntrmute.dev/kyle/kdhcp/iptools"
 )
 
@@ -35,3 +36,14 @@ func (srv *Server) loadPoolsFromConfig() error {
 
 	return nil
 }
+
+func (srv *Server) updatePoolLoop() {
+	for {
+		time.Sleep(time.Minute)
+		for _, p := range srv.Pools {
+			if p.Update(srv.clock.Now()) {
+				log.Debugln("pools updated")
+			}
+		}
+	}
+}

server/server.go

@@ -5,10 +5,11 @@ import (
 	"net"
 	"time"
 
-	log "git.wntrmute.dev/kyle/goutils/syslog"
+	log "git.wntrmute.dev/kyle/goutils/log"
 	"git.wntrmute.dev/kyle/kdhcp/config"
 	"git.wntrmute.dev/kyle/kdhcp/dhcp"
 	"git.wntrmute.dev/kyle/kdhcp/iptools"
+	"github.com/benbjohnson/clock"
 )
 
 const (
@@ -22,6 +23,8 @@ type Server struct {
 	Config *config.Config
 	Pools  map[string]*iptools.Pool
 	Static map[string]*iptools.LeaseInfo
+
+	clock clock.Clock
 }
 
 func (s *Server) Close() error {
@@ -62,23 +65,34 @@ func (s *Server) WriteTo(b []byte, addr net.Addr) error {
 	return errors.New("server: not implemented")
 }
 
-func (s *Server) AcceptPacket() error {
+func (s *Server) AcceptPacket() (*dhcp.BootRequest, error) {
 	request, err := s.ReadDHCPRequest()
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	log.Debugf("BOOTP request received from %x", request.HardwareAddress)
-	return nil
+	return request, nil
 }
 
 func (s *Server) Listen() {
+	go s.updatePoolLoop()
+
 	for {
-		if err := s.AcceptPacket(); err != nil {
+		req, err := s.AcceptPacket()
+		if err != nil {
 			log.Errf("server: error reading packet: %s", err)
 			continue
 		}
-		break
+
+		lease := s.SelectLease(req, s.clock.Now())
+		if err != nil {
+			log.Err("server: couldn't find available lease")
+			continue
+		}
+
+		log.Infof("available lease: %s", lease)
+		continue
 	}
 }
 
@@ -87,6 +101,7 @@ func New(cfg *config.Config) (*Server, error) {
 		Config: cfg,
 		Pools:  map[string]*iptools.Pool{},
 		Static: map[string]*iptools.LeaseInfo{},
+		clock:  clock.New(),
 	}
 
 	if err := srv.loadPoolsFromConfig(); err != nil {