X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fpam_systemd.xml;h=4e5cdf248b2e0823c0d6c128e79e4e558cf78541;hp=d43ed231f292d6d83e4104f4d67b5bee673f9b56;hb=1fda0ab5fc9cf7454c8da32941e433dc38ba9991;hpb=4611d77694effd27ad0e191c820498dbff25907c diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml index d43ed231f..4e5cdf248 100644 --- a/man/pam_systemd.xml +++ b/man/pam_systemd.xml @@ -8,20 +8,20 @@ Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU General Public License + You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see . --> - + pam_systemd @@ -44,33 +44,31 @@ pam_systemd - Register user sessions in the systemd control group hierarchy + Register user sessions in the systemd login manager - - pam_systemd.so - + pam_systemd.so Description pam_systemd registers user - sessions in the systemd control group - hierarchy. + sessions in the systemd login manager + systemd-logind.service8, + and hence the systemd control group hierarchy. On login, this module ensures the following: If it does not exist yet, the user runtime directory - /var/run/user/$USER is + /run/user/$USER is created and its ownership changed to the user that is logging in. - If - is set, the + The $XDG_SESSION_ID environment variable is initialized. If auditing is available and @@ -82,20 +80,10 @@ an independent session counter is used. - If - is set, a new - control group + A new control group /user/$USER/$XDG_SESSION_ID is created and the login process moved into it. - - If - is set, a new - control group - /user/$USER/user - is created and the login process moved into - it. - On logout, this module ensures the following: @@ -103,38 +91,13 @@ If $XDG_SESSION_ID is set and - specified, all + specified, all remaining processes in the /user/$USER/$XDG_SESSION_ID control group are killed and the control group is removed. - If - $XDG_SESSION_ID is set and - specified, all - remaining processes in the - /user/$USER/$XDG_SESSION_ID - control group are migrated to - /user/$USER/user and - the original control group is - removed. - - If - is specified, and - no other user session control group remains, - except - /user/$USER/user, - all remaining processes in the - /user/$USER hierarchy - are killed and the control group is removed. - - If - is specified, and - no process remains in the - /user/$USER hierarchy the - control group is removed. - - If the + If the last subgroup of the /user/$USER control group was removed the $XDG_RUNTIME_DIR directory @@ -153,29 +116,9 @@ The following options are understood: - - - - - Takes a boolean - argument. If true, a new session is - created: the - $XDG_SESSION_ID - environment variable is set and the - login process moved to the - /user/$USER/$XDG_SESSION_ID - control group. It is recommended that - all services which are directly created - on the user's behalf set this - option. Only for services that shall - automatically be terminated when the - user logs out completely, otherwise - create-session=0 - should be set. - - + - + Takes a boolean argument. If true, all processes @@ -186,51 +129,109 @@ - + + + Takes a comma-separated + list of usernames or + numeric user IDs as argument. If this + option is used, the effect of the + options + will apply only to the listed + users. If this option is not used, the + option applies to all local + users. Note that + + takes precedence over this list and is + hence subtracted from the list + specified here. + - Takes a boolean - argument. If true, all processes - created by the user during his session - and from his session will be - terminated after he logged out - completely. This is a weaker version - of and is - more friendly for users logged in more - than once, as their processes are - terminated only on their complete - logout. + + + + Takes a comma-separated + list of usernames or + numeric user IDs as argument. Users + listed in this argument will not be + subject to the effect of + . + Note that this option takes precedence + over + , and + hence whatever is listed for + + is guaranteed to never be killed by + this PAM module, independent of any + other configuration + setting. - Takes a comma - seperated list of cgroup controllers - in which hierarchies a user/session - cgroup will be created by defautl for - each user logging in. If ommited, - defaults to 'cpu', meaning that in - addition to creating per-user and - per-session cgroups in systemd's own - hierarchy, groups are created in the - 'cpu' hierarchy, on order to ensure - that every use and every sessions gets - an equal amount of CPU time, - regardless how many processes a user - or session might - own. + Takes a comma-separated + list of control group + controllers in which hierarchies a + user/session control group will be + created by default for each user + logging in, in addition to the control + group in the named 'name=systemd' + hierarchy. If omitted, defaults to an + empty list. + + + + + + Takes a comma-separated + list of control group + controllers in which hierarchies the + logged in processes will be reset to + the root control + group. + + + + + + Takes a string + argument which sets the session class. + The XDG_SESSION_CLASS environmental variable + takes precedence. + + + + + + Takes a boolean + argument. If yes, the module will log + debugging information as it + operates. - Note that setting kill-user=1 - or even kill-session=1 will break - tools like + Note that setting + kill-session-processes=1 will break tools + like screen1. + Note that + kill-session-processes=1 is a + stricter version of + KillUserProcesses=1 which may be + configured system-wide in + logind.conf5. The + former kills processes of a session as soon as it + ends; the latter kills processes as soon as the last + session of the user ends. + If the options are omitted they default to - , - , - . + , + , + , + , + , + . @@ -244,12 +245,12 @@ The following environment variables are set for the processes of the user's session: - + $XDG_SESSION_ID A session identifier, - suitable to be used in file names. The + suitable to be used in filenames. The string itself should be considered opaque, although often it is just the audit session ID as reported by @@ -278,13 +279,13 @@ in again, the directory contents will have been lost in between, but applications should not rely on this - behaviour and must be able to deal with + behavior and must be able to deal with stale files. To store session-private - data in this directory the user should + data in this directory, the user should include the value of $XDG_SESSION_ID in the filename. This directory shall be used for runtime file system - objects such as AF_UNIX sockets, + objects such as AF_UNIX sockets, FIFOs, PID files and similar. It is guaranteed that this directory is local and offers the greatest possible @@ -305,17 +306,20 @@ account required pam_unix.so password required pam_unix.so session required pam_unix.so session required pam_loginuid.so -session required pam_systemd.so kill-user=1 +session required pam_systemd.so kill-session-processes=1 See Also + systemd1, + systemd-logind.service8, + logind.conf5, + loginctl1, pam.conf5, pam.d5, pam8, - pam_loginuid8, - systemd1 + pam_loginuid8