AdGuardHome/internal/dhcpd
Eugene Burkov fffa656758 Pull request: 4722 dhcp http panic
Merge in DNS/adguard-home from 4722-dhcp-http-panic to master

Updates #4722.

Squashed commit of the following:

commit 8a8db48c3bd4f6bb7fabe65b5b7b162f0986fc76
Merge: 39b344f9 b74b92fc
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 20:11:23 2022 +0300

    Merge branch 'master' into 4722-dhcp-http-panic

commit 39b344f97180af17ab22041e5655a27bcc99c29e
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 18:33:56 2022 +0300

    dhcpd: imp code, fmt

commit a36d70d2c25791b2e657e21d6f4681b33497f0cd
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 17:38:17 2022 +0300

    dhcpd: imp names, docs

commit 600d63da7af62de5cb52fc7670ef28c9f4fe95a7
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 17:36:17 2022 +0300

    dhcpd: rename files, imp tags

commit 44f5507649db8536a07c4c21c8ad6e4a60ba3f43
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 16:40:26 2022 +0300

    dhcpd: add mock

commit cfc3cfb714705067d3aa71a7cb5df4245e091cfd
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 16:15:27 2022 +0300

    all: use ptr instead of value

commit ec526c2cf22df3470641296cfc402113c23c3f9b
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 14:57:10 2022 +0300

    all: log changes

commit 0eca09f4c72bbdc73a2334c839d7781847ba3962
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 14:50:32 2022 +0300

    dhcpd: let v4 be unconfigured

commit 59636e9ff48aea989d7bdfd216b37899b57137d2
Merge: 9238ca0a bc1503af
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 13 14:50:17 2022 +0300

    Merge branch 'master' into 4722-dhcp-http-panic

commit 9238ca0a1e190ddc344f01959f474932809f086a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Sep 7 18:28:56 2022 +0300

    dhcpd: imp conf

commit 5f801c9be96c2fa735a50373495d8c6ca2914f32
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Sep 6 16:31:13 2022 +0300

    dhcpd: hide behind iface

commit a95c2741a7e3e5bfe8775bf937a3709217b76da0
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Aug 31 16:24:02 2022 +0300

    dhcpd: separate os files
2022-09-13 23:45:35 +03:00
..
bitset_test.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
bitset.go Pull request: dhcpd: imp static lease validation 2021-03-18 17:07:13 +03:00
broadcast_bsd_test.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
broadcast_bsd.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
broadcast_others_test.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
broadcast_others.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
config.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
conn_unix_test.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
conn_unix.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
db.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
dhcpd_unix_test.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
dhcpd.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
http_unix.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
http_windows_test.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
http_windows.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
iprange_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
options_unix_test.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
options_unix.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
os_windows.go Pull request: Improve build tags 2022-09-13 20:06:23 +03:00
README.md Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
routeradv_test.go Pull request: dhcpd: do not assume mac addrs of 6 bytes 2021-03-31 12:36:57 +03:00
routeradv.go Pull request: upd-fmt 2022-08-31 18:57:02 +03:00
v4_unix_test.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
v4_unix.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
v6_unix_test.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
v6_unix.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +03:00
v46_windows.go Pull request: 4722 dhcp http panic 2022-09-13 23:45:35 +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