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networkctl: introduce "persistent-storage" command
Then, this introduces systemd-networkd-persistent-storage.service. systemd-networkd.service is an early starting service. So, at the time it is started, the persistent storage for the service may not be ready, and we cannot use StateDirectory=systemd/network in systemd-networkd.service. The newly added systemd-networkd-persistent-storage.service creates the state directory for networkd, and notify systemd-networkd that the directory is usable.
This commit is contained in:
Yu Watanabe
parent
f90eb08627
commit
91676b6458
@ -495,6 +495,21 @@ s - Service VLAN, m - Two-port MAC Relay (TPMR)
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<xi:include href="version-info.xml" xpointer="v256"/></listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<command>persistent-storage</command>
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<replaceable>BOOL</replaceable>
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</term>
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<listitem>
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<para>Notify <filename>systemd-networkd.service</filename> that the persistent storage for the
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service is ready. This is called by
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<filename>systemd-networkd-persistent-storage.service</filename>. Usually, this command should not
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be called manually by users or administrators.</para>
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<xi:include href="version-info.xml" xpointer="v256"/>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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@ -2929,6 +2929,24 @@ static int verb_reconfigure(int argc, char *argv[], void *userdata) {
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return 0;
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}
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static int verb_persistent_storage(int argc, char *argv[], void *userdata) {
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_cleanup_(varlink_unrefp) Varlink *vl = NULL;
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bool ready;
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int r;
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r = parse_boolean(argv[1]);
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if (r < 0)
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return log_error_errno(r, "Failed to parse argument: %s", argv[1]);
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ready = r;
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r = varlink_connect_networkd(&vl);
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if (r < 0)
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return r;
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return varlink_callb_and_log(vl, "io.systemd.Network.SetPersistentStorage", /* reply = */ NULL,
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JSON_BUILD_OBJECT(JSON_BUILD_PAIR_BOOLEAN("Ready", ready)));
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}
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static int help(void) {
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_cleanup_free_ char *link = NULL;
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int r;
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@ -2955,6 +2973,8 @@ static int help(void) {
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" cat FILES|DEVICES... Show network configuration files\n"
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" mask FILES... Mask network configuration files\n"
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" unmask FILES... Unmask network configuration files\n"
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" persistent-storage BOOL\n"
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" Notify systemd-networkd if persistent storage is ready\n"
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"\nOptions:\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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@ -3098,21 +3118,22 @@ static int parse_argv(int argc, char *argv[]) {
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static int networkctl_main(int argc, char *argv[]) {
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static const Verb verbs[] = {
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{ "list", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_links },
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{ "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, link_status },
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{ "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status },
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{ "label", 1, 1, 0, list_address_labels },
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{ "delete", 2, VERB_ANY, 0, link_delete },
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{ "up", 2, VERB_ANY, 0, link_up_down },
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{ "down", 2, VERB_ANY, 0, link_up_down },
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{ "renew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_renew },
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{ "forcerenew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_force_renew },
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{ "reconfigure", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_reconfigure },
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{ "reload", 1, 1, VERB_ONLINE_ONLY, verb_reload },
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{ "edit", 2, VERB_ANY, 0, verb_edit },
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{ "cat", 2, VERB_ANY, 0, verb_cat },
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{ "mask", 2, VERB_ANY, 0, verb_mask },
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{ "unmask", 2, VERB_ANY, 0, verb_unmask },
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{ "list", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_links },
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{ "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, link_status },
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{ "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status },
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{ "label", 1, 1, 0, list_address_labels },
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{ "delete", 2, VERB_ANY, 0, link_delete },
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{ "up", 2, VERB_ANY, 0, link_up_down },
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{ "down", 2, VERB_ANY, 0, link_up_down },
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{ "renew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_renew },
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{ "forcerenew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_force_renew },
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{ "reconfigure", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_reconfigure },
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{ "reload", 1, 1, VERB_ONLINE_ONLY, verb_reload },
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{ "edit", 2, VERB_ANY, 0, verb_edit },
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{ "cat", 2, VERB_ANY, 0, verb_cat },
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{ "mask", 2, VERB_ANY, 0, verb_mask },
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{ "unmask", 2, VERB_ANY, 0, verb_unmask },
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{ "persistent-storage", 2, 2, 0, verb_persistent_storage },
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{}
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};
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@ -7,6 +7,7 @@
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# See tmpfiles.d(5) for details
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d /run/systemd/netif 0755 systemd-network systemd-network -
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d /run/systemd/netif/links 0755 systemd-network systemd-network -
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d /run/systemd/netif 0755 systemd-network systemd-network -
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d /run/systemd/netif/links 0755 systemd-network systemd-network -
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d /run/systemd/netif/leases 0755 systemd-network systemd-network -
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d /var/lib/systemd/network 0755 systemd-network systemd-network -
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@ -432,6 +432,10 @@ units = [
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'symlinks' : ['sysinit.target.wants/'],
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},
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{ 'file' : 'systemd-network-generator.service.in' },
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{
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'file' : 'systemd-networkd-persistent-storage.service',
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'conditions' : ['ENABLE_NETWORKD'],
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},
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{
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'file' : 'systemd-networkd-wait-online.service.in',
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'conditions' : ['ENABLE_NETWORKD'],
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27
units/systemd-networkd-persistent-storage.service
Normal file
27
units/systemd-networkd-persistent-storage.service
Normal file
@ -0,0 +1,27 @@
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# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Enable Persistent Storage in systemd-networkd
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Documentation=man:networkctl(1)
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ConditionCapability=CAP_NET_ADMIN
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DefaultDependencies=no
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After=systemd-remount-fs.service systemd-networkd.service
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BindsTo=systemd-networkd.service
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Conflicts=shutdown.target
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RequiresMountsFor=/var/lib/systemd/network
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ConditionPathExists=!/etc/initrd-release
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[Service]
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Type=oneshot
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User=systemd-network
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ExecStart=networkctl persistent-storage yes
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ExecStop=networkctl persistent-storage no
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StateDirectory=systemd/network
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RemainAfterExit=yes
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@ -17,7 +17,7 @@ DefaultDependencies=no
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After=systemd-networkd.socket systemd-udevd.service network-pre.target systemd-sysusers.service systemd-sysctl.service
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Before=network.target multi-user.target shutdown.target initrd-switch-root.target
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Conflicts=shutdown.target initrd-switch-root.target
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Wants=systemd-networkd.socket network.target
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Wants=systemd-networkd.socket network.target systemd-networkd-persistent-storage.service
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[Service]
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AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_NET_RAW
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