AdGuardHome/internal/dhcpd/server.go
Eugene Burkov 7fab31beae Pull request: 2508 ip conversion vol.2
Merge in DNS/adguard-home from 2508-ip-conversion-vol2 to master

Closes #2508.

Squashed commit of the following:

commit 5b9d33f9cd352756831f63e34c4aea48674628c1
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Wed Jan 20 17:15:17 2021 +0300

    util: replace net.IPNet with pointer

commit 680126de7d59464077f9edf1bbaa925dd3fcee19
Merge: d3ba6a6c 5a50efad
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Wed Jan 20 17:02:41 2021 +0300

    Merge branch 'master' into 2508-ip-conversion-vol2

commit d3ba6a6cdd01c0aa736418fdb86ed40120169fe9
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Tue Jan 19 18:29:54 2021 +0300

    all: remove last conversion

commit 88b63f11a6c3f8705d7fa0c448c50dd646cc9214
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Tue Jan 19 14:12:45 2021 +0300

    all: improve code quality

commit 71af60c70a0dbaf55e2221023d6d2e4993c9e9a7
Merge: 98af3784 9f75725d
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Jan 18 17:13:27 2021 +0300

    Merge branch 'master' into 2508-ip-conversion-vol2

commit 98af3784ce44d0993d171653c13d6e83bb8d1e6a
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Jan 18 16:32:53 2021 +0300

    all: log changes

commit e99595a172bae1e844019d344544be84ddd65e4e
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Jan 18 16:06:49 2021 +0300

    all: fix or remove remaining net.IP <-> string conversions

commit 7fd0634ce945f7e4c9b856684c5199f8a84a543e
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Jan 15 15:36:17 2021 +0300

    all: remove redundant net.IP <-> string converions

commit 5df8af030421237d41b67ed659f83526cc258199
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Jan 14 16:35:25 2021 +0300

    stats: remove redundant net.IP <-> string conversion

commit fbe4e3fc015e6898063543a90c04401d76dbb18f
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Jan 14 16:20:35 2021 +0300

    querylog: remove redundant net.IP <-> string conversion
2021-01-20 17:27:53 +03:00

101 lines
3.2 KiB
Go

package dhcpd
import (
"net"
"time"
)
// DHCPServer - DHCP server interface
type DHCPServer interface {
// ResetLeases - reset leases
ResetLeases(leases []*Lease)
// GetLeases - get leases
GetLeases(flags int) []Lease
// GetLeasesRef - get reference to leases array
GetLeasesRef() []*Lease
// AddStaticLease - add a static lease
AddStaticLease(lease Lease) error
// RemoveStaticLease - remove a static lease
RemoveStaticLease(l Lease) error
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
FindMACbyIP(ip net.IP) net.HardwareAddr
// WriteDiskConfig4 - copy disk configuration
WriteDiskConfig4(c *V4ServerConf)
// WriteDiskConfig6 - copy disk configuration
WriteDiskConfig6(c *V6ServerConf)
// Start - start server
Start() error
// Stop - stop server
Stop()
}
// V4ServerConf - server configuration
type V4ServerConf struct {
Enabled bool `yaml:"-" json:"-"`
InterfaceName string `yaml:"-" json:"-"`
GatewayIP net.IP `yaml:"gateway_ip" json:"gateway_ip"`
SubnetMask net.IP `yaml:"subnet_mask" json:"subnet_mask"`
// The first & the last IP address for dynamic leases
// Bytes [0..2] of the last allowed IP address must match the first IP
RangeStart net.IP `yaml:"range_start" json:"range_start"`
RangeEnd net.IP `yaml:"range_end" json:"range_end"`
LeaseDuration uint32 `yaml:"lease_duration" json:"lease_duration"` // in seconds
// IP conflict detector: time (ms) to wait for ICMP reply
// 0: disable
ICMPTimeout uint32 `yaml:"icmp_timeout_msec" json:"-"`
// Custom Options.
//
// Option with arbitrary hexadecimal data:
// DEC_CODE hex HEX_DATA
// where DEC_CODE is a decimal DHCPv4 option code in range [1..255]
//
// Option with IP data (only 1 IP is supported):
// DEC_CODE ip IP_ADDR
Options []string `yaml:"options" json:"-"`
ipStart net.IP // starting IP address for dynamic leases
ipEnd net.IP // ending IP address for dynamic leases
leaseTime time.Duration // the time during which a dynamic lease is considered valid
dnsIPAddrs []net.IP // IPv4 addresses to return to DHCP clients as DNS server addresses
routerIP net.IP // value for Option Router
subnetMask net.IPMask // value for Option SubnetMask
options []dhcpOption
// Server calls this function when leases data changes
notify func(uint32)
}
// V6ServerConf - server configuration
type V6ServerConf struct {
Enabled bool `yaml:"-" json:"-"`
InterfaceName string `yaml:"-" json:"-"`
// The first IP address for dynamic leases
// The last allowed IP address ends with 0xff byte
RangeStart net.IP `yaml:"range_start"`
LeaseDuration uint32 `yaml:"lease_duration" json:"lease_duration"` // in seconds
RaSlaacOnly bool `yaml:"ra_slaac_only" json:"-"` // send ICMPv6.RA packets without MO flags
RaAllowSlaac bool `yaml:"ra_allow_slaac" json:"-"` // send ICMPv6.RA packets with MO flags
ipStart net.IP // starting IP address for dynamic leases
leaseTime time.Duration // the time during which a dynamic lease is considered valid
dnsIPAddrs []net.IP // IPv6 addresses to return to DHCP clients as DNS server addresses
// Server calls this function when leases data changes
notify func(uint32)
}
type dhcpOption struct {
code uint8
val []byte
}