AdGuardHome/internal/dhcpd
Eugene Burkov 5cc2a2cd0c Pull request: 4863 fix dhcp request
Merge in DNS/adguard-home from 4863-fix-dhcp-request to master

Closes #4863.

Squashed commit of the following:

commit f8872015e315eab3b2ce0249e552d12cbcf72f63
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 20:34:35 2022 +0300

    dhcpd: imp code

commit b63c5d98c2055c3a3b76ff47737551840409f324
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 20:19:22 2022 +0300

    dhcpd: fix deadlock

commit 5c03b54a86ab05efde9716faef60b84ecab01d19
Merge: f076cf8f 8733f55c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 19:12:27 2022 +0300

    Merge branch 'master' into 4863-fix-dhcp-request

commit f076cf8fc13944613b7127aac86ca78f68009f93
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 19:08:04 2022 +0300

    dhcpd: imp code, names

commit a09540b6db6b86b80b8eb84c08187bfd9f960190
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 17:28:39 2022 +0300

    dhcpd: imp code, docs

commit 38b12235509aaf55fa130f820213410b6b3022bb
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 16:42:32 2022 +0300

    dhcpd: imp docs more

commit ff07c2f90f097754beb736fd5bd5cafc337ac65c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 16:41:42 2022 +0300

    dhcpd: fix docs

commit fafbc2ec2317f2320d8e1db167a1ae6c1c7c3790
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 16:35:42 2022 +0300

    dhcpd: imp code

commit 9fe30190a7f125fd640b58e17661a4c33c078eba
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 15:00:56 2022 +0300

    all: imp chlog

commit 1067fe95df5cb2252d1b9b70d2f3f8463997aea1
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 14:54:03 2022 +0300

    dhcpd: log changes

commit 20de395c2bdcfb8e0554bb1c45385c15d617be65
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Aug 30 14:49:58 2022 +0300

    dhcpd: impl rfc 2131 for req
2022-08-30 20:39:34 +03:00
..
bitset.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
bitset_test.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
broadcast_bsd.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_bsd_test.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_others.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
broadcast_others_test.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
conn_unix.go Pull request: 4836-revert-dhcp-upd 2022-08-15 18:31:32 +03:00
conn_unix_test.go Pull request: 4836-revert-dhcp-upd 2022-08-15 18:31:32 +03:00
db.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00
dhcpd.go Pull request: 4358 fix stats 2022-08-04 19:05:28 +03:00
dhcpd_test.go Pull request: home: mv local domain name to dhcp setts 2022-01-25 19:47:02 +03:00
helpers.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
http.go Pull request: 4698 Gateway IP in DHCP Lease 2022-07-08 15:17:47 +03:00
http_test.go Pull request: use testutil 2021-10-22 11:58:18 +03:00
iprange.go Pull request: filtering: fix rw to subdomain 2021-12-27 19:40:39 +03:00
iprange_test.go Pull request: use testutil 2021-10-22 11:58:18 +03:00
options_unix.go Pull request: 4337 Add del option 2022-08-26 14:30:31 +03:00
options_unix_test.go Pull request: 4337 Add del option 2022-08-26 14:30:31 +03:00
os_windows.go Pull request: all: imp build tags 2021-06-15 19:42:41 +03:00
README.md Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
routeradv.go Pull request: all: mv some utilities to netutil 2021-08-09 16:03:37 +03:00
routeradv_test.go Pull request: dhcpd: do not assume mac addrs of 6 bytes 2021-03-31 12:36:57 +03:00
server.go Pull request: 4863 fix dhcp request 2022-08-30 20:39:34 +03:00
v4.go Pull request: 4863 fix dhcp request 2022-08-30 20:39:34 +03:00
v4_test.go Pull request: 4863 fix dhcp request 2022-08-30 20:39:34 +03:00
v6.go Pull request: all: opt log levels more 2021-12-28 17:25:43 +03:00
v6_test.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00
v46.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
v46_windows.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00

DHCP server

Contents:

Test setup with Virtual Box

To set up a test environment for DHCP server you need:

  • Linux host machine
  • Virtual Box
  • Virtual machine (guest OS doesn't matter)

Configure client

  1. Install Virtual Box and run the following command to create a Host-Only network:

     $ VBoxManage hostonlyif create
    

    You can check its status by ip a command.

    You can also set up Host-Only network using Virtual Box menu:

     File -> Host Network Manager...
    
  2. Create your virtual machine and set up its network:

     VM Settings -> Network -> Host-only Adapter
    
  3. Start your VM, install an OS. Configure your network interface to use DHCP and the OS should ask for a IP address from our DHCP server.

  4. To see the current IP address on client OS you can use ip a command on Linux or ipconfig on Windows.

  5. To force the client OS to request an IP from DHCP server again, you can use dhclient on Linux or ipconfig /release on Windows.

Configure server

  1. Edit server configuration file 'AdGuardHome.yaml', for example:

     dhcp:
       enabled: true
       interface_name: vboxnet0
       dhcpv4:
         gateway_ip: 192.168.56.1
         subnet_mask: 255.255.255.0
         range_start: 192.168.56.2
         range_end: 192.168.56.2
         lease_duration: 86400
         icmp_timeout_msec: 1000
         options: []
       dhcpv6:
         range_start: 2001::1
         lease_duration: 86400
         ra_slaac_only: false
         ra_allow_slaac: false
    
  2. Start the server

     ./AdGuardHome
    

    There should be a message in log which shows that DHCP server is ready:

     [info] DHCP: listening on 0.0.0.0:67