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logind: add new 'user-incomplete' session class

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This commit is contained in:
Lennart Poettering
2023-11-27 18:36:06 +01:00
parent 37c6c2035e
commit 53ebde6db4
4 changed files with 11 additions and 4 deletions
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4
man/pam_systemd.xml
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@@ -115,6 +115,10 @@
<entry><constant>user-early</constant></entry>
<entry>Similar to <literal>user</literal> but sessions of this class are not ordered after <filename>systemd-user-sessions.service</filename>, i.e. may be started before regular sessions are allowed to be established. This session class is the default for sessions of the root user that would otherwise qualify for the <constant>user</constant> class, see above. (Added in v256.)</entry>
</row>
<row>
<entry><constant>user-incomplete</constant></entry>
<entry>Similar to <literal>user</literal> but for sessions which are not fully set up yet, i.e. have no home directory mounted ot similar. This is used by <citerefentry><refentrytitle>systemd-homed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> to allow users to log in via <command>ssh</command> before their home directory is mounted, delaying the mount until the user provided the unlock password. Sessions of this class are upgraded to the regular <constant>user</constant> class once the home directory is activated.</entry>
</row>
<row>
<entry><constant>greeter</constant></entry>
<entry>Similar to <literal>user</literal> but for sessions that are spawned by a display manager ephemerally and which prompt the user for login credentials.</entry>

7
man/sd_session_is_active.xml
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@@ -216,9 +216,10 @@
<para><function>sd_session_get_class()</function> may be used to determine the class of the session
identified by the specified session identifier. The returned string is one of <literal>user</literal>,
<literal>user-early</literal>, <literal>greeter</literal>, <literal>lock-screen</literal>,
<literal>background</literal>, <literal>background-light</literal>, <literal>manager</literal> or
<literal>manager-early</literal> and needs to be freed with the libc <citerefentry
<literal>user-early</literal>, <literal>user-incomplete</literal>, <literal>greeter</literal>,
<literal>lock-screen</literal>, <literal>background</literal>, <literal>background-light</literal>,
<literal>manager</literal> or <literal>manager-early</literal> and needs to be freed with the libc
<citerefentry
project='man-pages'><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry> call after
use.</para>

1
src/login/logind-session.c
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@@ -1648,6 +1648,7 @@ DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType);
static const char* const session_class_table[_SESSION_CLASS_MAX] = {
[SESSION_USER] = "user",
[SESSION_USER_EARLY] = "user-early",
[SESSION_USER_INCOMPLETE] = "user-incomplete",
[SESSION_GREETER] = "greeter",
[SESSION_LOCK_SCREEN] = "lock-screen",
[SESSION_BACKGROUND] = "background",

3
src/login/logind-session.h
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@@ -22,6 +22,7 @@ typedef enum SessionState {
typedef enum SessionClass {
SESSION_USER, /* A regular user session */
SESSION_USER_EARLY, /* A user session, that is not ordered after systemd-user-sessions.service (i.e. for root) */
SESSION_USER_INCOMPLETE, /* A user session that is only half-way set up and doesn't pull in the service manager, and can be upgraded to a full user session later */
SESSION_GREETER, /* A login greeter pseudo-session */
SESSION_LOCK_SCREEN, /* A lock screen */
SESSION_BACKGROUND, /* Things like cron jobs, which are non-interactive */
@@ -37,7 +38,7 @@ typedef enum SessionClass {
#define SESSION_CLASS_IS_EARLY(class) IN_SET((class), SESSION_USER_EARLY, SESSION_MANAGER_EARLY)
/* Which session classes want their own scope units? (all of them, except the manager, which comes in its own service unit already */
#define SESSION_CLASS_WANTS_SCOPE(class) IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER, SESSION_LOCK_SCREEN, SESSION_BACKGROUND, SESSION_BACKGROUND_LIGHT)
#define SESSION_CLASS_WANTS_SCOPE(class) IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_USER_INCOMPLETE, SESSION_GREETER, SESSION_LOCK_SCREEN, SESSION_BACKGROUND, SESSION_BACKGROUND_LIGHT)
/* Which session classes want their own per-user service manager? */
#define SESSION_CLASS_WANTS_SERVICE_MANAGER(class) IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER, SESSION_LOCK_SCREEN, SESSION_BACKGROUND)