Hi, Another option is also possible. You can add conf-dir=/modifiable/dnsmasq.d,*.conf into /etc/NetworkManager/dnsmasq.d/modify.conf
That would be fixed part, which would stay read-only. And any configuration generated on-fly would be in modifiable directory. dnsmasq should support multiple directories read for configuration. It allows additional directory instead of moving existing directory. Cheers, Petr On 10/29/21 11:14, Thomas Haller via networkmanager-list wrote: > On Thu, 2021-10-28 at 07:21 -0700, mailingl...@bentleyemail.net wrote: >> Our embedded device has a readonly partition for configuration and >> such. /etc/ is on this readonly partition. >> >> We currently use keyfile path=/writable partition in order to get >> system-connections off the readonly partition. Is there a way to get >> the dnsmasq --conf-dir parameter to point to a different location as >> well? >> >> Currently I see: >> # ps | grep dns >> 340 nobody /usr/sbin/dnsmasq --conf-file=/dev/null --no-hosts --keep- >> in-foreground --bind-interfaces --except-interface=lo --clear-on-reload >> --strict-order --listen-address=172.16.54.100 --dhcp- >> range=172.16.54.109,172.16.54.254,60m --dhcp-lease-max=50 --dhcp- >> leasefile=/var/lib/NetworkManager/dnsmasq-br0.leases --pid- >> file=/var/run/nm-dnsmasq-br0.pid --conf- >> dir=/etc/NetworkManager/dnsmasq-shared.d >> 345 nobody /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no- >> hosts --bind-interfaces --pid-file=/var/run/NetworkManager/dnsmasq.pid >> --listen-address=127.0.0.1 --cache-size=400 --clear-on-reload --conf- >> file=/dev/null --proxy-dnssec --enable- >> dbus=org.freedesktop.NetworkManager.dnsmasq --conf- >> dir=/etc/NetworkManager/dnsmasq.d >> >> I have not seen where I can influence this location. Can you advise? >> I'd like to be able to have something like: >> >> /usr/sbin/dnsmasq --conf-file=/dev/null --no-hosts --keep-in-foreground >> --bind-interfaces --except-interface=lo --clear-on-reload --strict- >> order --listen-address=172.16.54.100 --dhcp- >> range=172.16.54.109,172.16.54.254,60m --dhcp-lease-max=50 --dhcp- >> leasefile=/var/lib/NetworkManager/dnsmasq-br0.leases --pid- >> file=/var/run/nm-dnsmasq-br0.pid --conf- >> dir=/modifiable/NetworkManager/dnsmasq-shared.d >> /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind- >> interfaces --pid-file=/var/run/NetworkManager/dnsmasq.pid --listen- >> address=127.0.0.1 --cache-size=400 --clear-on-reload --conf- >> file=/dev/null --proxy-dnssec --enable- >> dbus=org.freedesktop.NetworkManager.dnsmasq --conf- >> dir=/modifiable/NetworkManager/dnsmasq.d >> >> Thanks, > > Hi, > > > no, that's not currently possible. > > You could: > > 1) bind-mount the directory "/modifiable/NetworkManager/dnsmasq*.d" to > "/etc/NetworkManager/dnsmasq*.d" > > 2) you could replace /usr/sbin/dnsmasq with a wrapper script that hacks > the configuration option. > > 3) the code does > > if (g_file_test(CONFDIR, G_FILE_TEST_IS_DIR)) > argv[argv_idx++] = "--conf-dir=" CONFDIR; > > You could patch the code (welcome upstream) to also accept SYMLINKS, > then you could symlink the /modifiable dir from /etc. > > > 4) maybe this could be made configurable in NetworkManager.conf (patch > maybe welcome upstream). But with 1) and 3) you would have alternatives > for that. Beside, dropping files to --conf-dir entirely bypasses > NetworkManager and it would be better to natively support the features > that are hacked this way. > > 5) any other patch that works for you. > > > 1) seems best. 3) is best otherwise, if you invest the work and can > wait for a new version of NetworkManager. > > > > best, > Thoma > > _______________________________________________ > networkmanager-list mailing list > networkmanager-list@gnome.org > https://mail.gnome.org/mailman/listinfo/networkmanager-list -- Petr Menšík Software Engineer Red Hat, http://www.redhat.com/ email: pemen...@redhat.com PGP: DFCF908DB7C87E8E529925BC4931CA5B6C9FC5CB _______________________________________________ networkmanager-list mailing list networkmanager-list@gnome.org https://mail.gnome.org/mailman/listinfo/networkmanager-list
