AdGuardHome/internal/dhcpd
Dmitry Seregin d7aafa7dc6 Pull request #1329: 3529 validate dhcpv4
Merge in DNS/adguard-home from 3529-validate-dhcpv4 to master

Squashed commit of the following:

commit 2f2455aa13a41398cd2846f31be96da9d34ba95d
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Tue Oct 19 19:18:12 2021 +0300

    dhcpv4: better test && fix changelog

commit ec4ff9180e8390fb739b3be0fc76fd2c715fe691
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 19:08:44 2021 +0300

    dhcpv4: better tests

commit e0e2f27b7a063ed84af170b16c3f87636cb738d2
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 18:55:47 2021 +0300

    dhcpv4: better tests

commit 73e1d08e1265e336ee6339d5021f90883fe3e395
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 18:47:21 2021 +0300

    dhcpv4: better tests

commit f636fc316123f26b6e2930afb4b22c18024ec93d
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 18:47:07 2021 +0300

    all: updated golibs

commit 86dd107a1d483ac24bd8c26422324eb8b9c3d086
Merge: 51aaf6d9 b296fa22
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 17:18:17 2021 +0300

    Merge branch 'master' into 3529-validate-dhcpv4

commit 51aaf6d9eb5fbe2b4304254dc6782305a19c53fa
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 17:18:02 2021 +0300

    dhcpv4: better changelog

commit 720b896bb595c57fab6d376f88c8a4b1d131db40
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 17:14:25 2021 +0300

    dhcpv4: better tests

commit 1098beffca8d5feb2ec104d26419210962c9a97d
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 12:08:26 2021 +0300

    dhcp: changelog

commit d1f6c89d68657431fb261658133c67e9e3135c1c
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 12:03:06 2021 +0300

    dhcpv4: fixed tests

commit 8b6713468fc04321c5238300df90bbb2d67ee679
Merge: 9991e9cb 3fa38fb4
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 11:57:57 2021 +0300

    Merge branch 'master' into 3529-validate-dhcpv4

commit 9991e9cbee7dc87d8fa1d7e86e6cc7e09ab6938c
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 11:55:40 2021 +0300

    dhcpv4: added tests

commit 5798a80de6c060365c1c647326d46cc13ccf28cb
Author: Dmitriy Seregin <d.seregin@adguard.com>
Date:   Mon Oct 18 11:46:03 2021 +0300

    dhcpv4: validate subnet mask and ip range
2021-10-19 19:28:18 +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: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
conn_unix_test.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
db.go Pull request: dhcpd: add purge, imp code 2021-06-16 16:48:46 +03:00
dhcpd.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
dhcpd_test.go Pull request #1329: 3529 validate dhcpv4 2021-10-19 19:28:18 +03:00
helpers.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
http.go Pull request: 3225 bsd dhcp 2021-08-12 17:33:53 +03:00
http_test.go Pull request: dhcpd: assume static ip on eperm 2021-02-12 16:40:34 +03:00
iprange.go Pull request: replace agherr with golibs' errors 2021-05-24 17:28:11 +03:00
iprange_test.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
nullbool.go Pull request: dhcpd: do not override ra-slaac settings 2021-02-11 20:49:03 +03:00
nullbool_test.go Pull request: all: upd dnsproxy, fix test, minor imp 2021-06-10 18:57:53 +03:00
options_unix.go Pull request: 3443 dhcp broadcast vol.2 2021-09-30 18:28:19 +03:00
options_unix_test.go Pull request: 3538 dhcp options 2021-09-13 20:05:41 +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: 3538 dhcp options 2021-09-13 20:05:41 +03:00
v4.go Pull request #1329: 3529 validate dhcpv4 2021-10-19 19:28:18 +03:00
v4_test.go Pull request: 3744 DNS server DHCP option 2021-10-18 15:29:29 +03:00
v6.go Pull request: upd golibs, use timeutil 2021-09-30 21:17:54 +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