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10ad50d38c
| Author | SHA1 | Date |
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Lennart Poettering
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10ad50d38c | |
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Yu Watanabe
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509b06ffdd | |
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Zbigniew Jędrzejewski-Szmek
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277519db51 | |
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Zbigniew Jędrzejewski-Szmek
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f71502c49f | |
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Zbigniew Jędrzejewski-Szmek
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4186441bbd |
142
man/bootup.xml
142
man/bootup.xml
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@ -92,56 +92,59 @@
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<!-- note: do not use unicode ellipsis here, because docbook will replace that
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<!-- note: do not use unicode ellipsis here, because docbook will replace that
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with three dots anyway, messing up alignment -->
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with three dots anyway, messing up alignment -->
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<programlisting>(various cryptsetup
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<programlisting> cryptsetup-pre.target
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devices...)
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(various low-level v
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v
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API VFS mounts: (various cryptsetup devices...)
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cryptsetup.target
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mqueue, configfs, | |
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debugfs, ...) v |
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v
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| cryptsetup.target |
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local-fs-pre.target
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| (various swap | | remote-fs-pre.target
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| devices...) | | | |
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v
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| | | | | v
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(various mounts and (various swap
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| v local-fs-pre.target | | | (network file systems)
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fsck services...) devices...) (various low-level (various low-level
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| swap.target | | v v |
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| | services: udevd, API VFS mounts:
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| | v | remote-cryptsetup.target |
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v v tmpfiles, random mqueue, configfs,
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| | (various low-level (various mounts and | | |
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local-fs.target swap.target seed, sysctl, ...) debugfs, ...)
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| | services: udevd, fsck services...) | | remote-fs.target
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| | | |
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| | tmpfiles, random | | | /
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\__________________|_________________ _________________|______________________/
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| | seed, sysctl, ...) v | | /
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\ /
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| | | local-fs.target | | /
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v
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| | | | | | /
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sysinit.target
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\____|______|_______________ ______|___________/ | /
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\ / | /
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____________________________________/|\________________________________________
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v | /
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/ | | | \
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sysinit.target | /
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| | | | |
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| | /
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v v | v v
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______________________/|\_____________________ | /
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(various (various | (various rescue.service
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/ | | | \ | /
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timers...) paths...) | sockets...) |
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| | | | | | /
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| | | | v
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v v | v | | /
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v v | v <emphasis>rescue.target</emphasis>
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(various (various | (various | |/
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timers.target paths.target | sockets.target
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timers...) paths...) | sockets...) | |
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| | | |
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v \_________________ | ___________________/
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v v | v | |
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\|/
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timers.target paths.target | sockets.target | |
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v
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| | | | v |
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basic.target
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v \_______ | _____/ rescue.service |
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\|/ | |
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____________________________________/| emergency.service
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v v |
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/ | | |
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basic.target <emphasis>rescue.target</emphasis> |
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| | | v
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| |
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v v v <emphasis>emergency.target</emphasis>
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________v____________________ |
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display- (various system (various system
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/ | \ |
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manager.service services services)
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| required for |
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v v v |
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| graphical UIs) v
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display- (various system (various system |
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| | <emphasis>multi-user.target</emphasis>
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manager.service services services) |
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| | |
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| required for | |
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\_________________ | _________________/
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| graphical UIs) v v
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\|/
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| | <emphasis>multi-user.target</emphasis>
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v
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emergency.service | | |
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<emphasis>graphical.target</emphasis></programlisting>
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| \_____________ | _____________/
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v \|/
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<emphasis>emergency.target</emphasis> v
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<emphasis>graphical.target</emphasis></programlisting>
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<para>Target units that are commonly used as boot targets are
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<para>Target units that are commonly used as boot targets are
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<emphasis>emphasized</emphasis>. These units are good choices as
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<emphasis>emphasized</emphasis>. These units are good choices as
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@ -157,6 +160,45 @@
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later in boot.</para>
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later in boot.</para>
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</refsect1>
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</refsect1>
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<refsect1>
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<title>User manager startup</title>
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<para>The system manager starts the <filename>user@<replaceable>uid</replaceable>.service</filename> unit
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for each user, which launches a separate unprivileged instance of <command>systemd</command> for each
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user — the user manager. Similarly to the system manager, the user manager starts units which are pulled
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in by <filename>default.target</filename>. The following chart is a structural overview of the well-known
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user units. For non-graphical sessions, <filename>default.target</filename> is used. Whenever the user
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logs into a graphical session, the login manager will start the
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<filename>graphical-session.target</filename> target that is used to pull in units required for the
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grahpical session. A number of targets (shown on the right side) are started when specific hardware is
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available to the user.</para>
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<programlisting>
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(various (various (various
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timers...) paths...) sockets...) (sound devices)
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v v v v
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timers.target paths.target sockets.target sound.target
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\______________ _|_________________/ (bluetooth devices)
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\ / |
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V v
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basic.target bluetooth.target
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__________/ \_______ (smartcard devices)
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/ \ |
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| | v
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| v smartcard.target
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v graphical-session-pre.target
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(various user services) | (printers)
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| v |
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| (services for the graphical sesion) v
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| | printer.target
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v v
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<emphasis>default.target</emphasis> graphical-session.target</programlisting>
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</refsect1>
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<refsect1>
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<refsect1>
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<title>Bootup in the Initial RAM Disk (initrd)</title>
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<title>Bootup in the Initial RAM Disk (initrd)</title>
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<para>The initial RAM disk implementation (initrd) can be set up
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<para>The initial RAM disk implementation (initrd) can be set up
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@ -330,14 +330,17 @@ int manager_rtnl_process_route(sd_netlink *rtnl, sd_netlink_message *message, vo
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return log_oom();
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return log_oom();
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r = sd_rtnl_message_route_get_family(message, &tmp->family);
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r = sd_rtnl_message_route_get_family(message, &tmp->family);
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if (r < 0 || !IN_SET(tmp->family, AF_INET, AF_INET6)) {
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if (r < 0) {
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log_link_warning(link, "rtnl: received route message with invalid family, ignoring");
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log_link_warning(link, "rtnl: received route message without family, ignoring");
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return 0;
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} else if (!IN_SET(tmp->family, AF_INET, AF_INET6)) {
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log_link_debug(link, "rtnl: received route message with invalid family '%i', ignoring", tmp->family);
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return 0;
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return 0;
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}
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}
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r = sd_rtnl_message_route_get_protocol(message, &tmp->protocol);
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r = sd_rtnl_message_route_get_protocol(message, &tmp->protocol);
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if (r < 0) {
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if (r < 0) {
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log_warning_errno(r, "rtnl: received route message with invalid route protocol: %m");
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log_warning_errno(r, "rtnl: received route message without route protocol: %m");
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return 0;
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return 0;
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}
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}
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@ -625,8 +628,11 @@ int manager_rtnl_process_neighbor(sd_netlink *rtnl, sd_netlink_message *message,
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}
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}
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r = sd_rtnl_message_neigh_get_family(message, &family);
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r = sd_rtnl_message_neigh_get_family(message, &family);
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if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
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if (r < 0) {
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log_link_warning(link, "rtnl: received neighbor message with invalid family, ignoring.");
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log_link_warning(link, "rtnl: received neighbor message withot family, ignoring.");
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return 0;
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} else if (!IN_SET(family, AF_INET, AF_INET6)) {
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log_link_debug(link, "rtnl: received neighbor message with invalid family '%i', ignoring.", family);
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return 0;
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return 0;
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}
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}
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@ -754,8 +760,11 @@ int manager_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message,
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}
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}
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r = sd_rtnl_message_addr_get_family(message, &family);
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r = sd_rtnl_message_addr_get_family(message, &family);
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if (r < 0 || !IN_SET(family, AF_INET, AF_INET6)) {
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if (r < 0) {
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log_link_warning(link, "rtnl: received address message with invalid family, ignoring.");
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log_link_warning(link, "rtnl: received address message without family, ignoring.");
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return 0;
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} else if (!IN_SET(family, AF_INET, AF_INET6)) {
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log_link_debug(link, "rtnl: received address message with invalid family '%i', ignoring.", family);
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return 0;
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return 0;
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}
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}
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@ -11,4 +11,3 @@
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Description=Local File Systems (Pre)
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Description=Local File Systems (Pre)
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Documentation=man:systemd.special(7)
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Documentation=man:systemd.special(7)
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RefuseManualStart=yes
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RefuseManualStart=yes
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After=cryptsetup.target
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@ -11,4 +11,3 @@
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Description=Remote File Systems (Pre)
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Description=Remote File Systems (Pre)
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Documentation=man:systemd.special(7)
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Documentation=man:systemd.special(7)
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RefuseManualStart=yes
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RefuseManualStart=yes
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After=remote-cryptsetup.target
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