[systemd-commits] 3 commits - Makefile-man.am Makefile.am man/systemd-sysusers.xml man/sysusers.d.xml src/shared sysusers.d/.gitignore sysusers.d/basic.conf.in sysusers.d/systemd.conf sysusers.d/systemd.conf.in

Lennart Poettering lennart at kemper.freedesktop.org
Sun Jun 29 13:27:34 PDT 2014


 Makefile-man.am            |    9 ++
 Makefile.am                |    9 +-
 man/systemd-sysusers.xml   |  117 +++++++++++++++++++++++++++++
 man/sysusers.d.xml         |  180 +++++++++++++++++++++++++++++++++++++++++++++
 src/shared/util.c          |    8 ++
 sysusers.d/.gitignore      |    2 
 sysusers.d/basic.conf.in   |   37 +++++++++
 sysusers.d/systemd.conf    |   13 +++
 sysusers.d/systemd.conf.in |   45 -----------
 9 files changed, 371 insertions(+), 49 deletions(-)

New commits:
commit 94655a1670aef827eee6751c986da4bb4ecee6d4
Author: Lennart Poettering <lennart at poettering.net>
Date:   Sun Jun 29 22:26:19 2014 +0200

    sysusers: split up default sysusers snippet
    
    This ways, distributions have an easier way to replace the OS specific
    generic groups/users while keeping systemd's own.

diff --git a/Makefile.am b/Makefile.am
index 5d86f3e..bb85b2c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1846,15 +1846,18 @@ nodist_systemunit_DATA += \
 SYSINIT_TARGET_WANTS += \
 	systemd-sysusers.service
 
-nodist_sysusers_DATA = \
+dist_sysusers_DATA = \
 	sysusers.d/systemd.conf
 
+nodist_sysusers_DATA = \
+	sysusers.d/basic.conf
+
 EXTRA_DIST += \
 	units/systemd-sysusers.service.in \
-	sysusers.d/systemd.conf.in
+	sysusers.d/basic.conf.in
 
 CLEANFILES += \
-	sysusers.d/systemd.conf
+	sysusers.d/basic.conf
 
 INSTALL_DIRS += \
 	$(sysusersdir)
diff --git a/sysusers.d/.gitignore b/sysusers.d/.gitignore
index 9a4436c..f7957a9 100644
--- a/sysusers.d/.gitignore
+++ b/sysusers.d/.gitignore
@@ -1 +1 @@
-/systemd.conf
+/basic.conf
diff --git a/sysusers.d/basic.conf.in b/sysusers.d/basic.conf.in
new file mode 100644
index 0000000..d463ce5
--- /dev/null
+++ b/sysusers.d/basic.conf.in
@@ -0,0 +1,37 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  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.
+
+# The superuser
+u root                          0               "Super User"
+
+# The nobody user for NFS file systems
+u nobody                        65534           "Nobody"
+
+# Administrator group: can *see* more than normal users
+g adm                           -               -
+
+# Administrator group: can *do* more than normal users
+g wheel                         -               -
+
+# Access to certain kernel and userspace facilities
+g kmem                          -               -
+g lock                          -               -
+g tty                           @TTY_GID@               -
+g utmp                          -               -
+
+# Hardware access groups
+g audio                         -               -
+g cdrom                         -               -
+g dialout                       -               -
+g disk                          -               -
+g input                         -               -
+g lp                            -               -
+g tape                          -               -
+g video                         -               -
+
+# Default group for normal users
+g users                         -               -
diff --git a/sysusers.d/systemd.conf b/sysusers.d/systemd.conf
new file mode 100644
index 0000000..139f010
--- /dev/null
+++ b/sysusers.d/systemd.conf
@@ -0,0 +1,13 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  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.
+
+g systemd-journal               -               -
+u systemd-journal-gateway       -               "systemd Journal Gateway"
+u systemd-bus-proxy             -               "systemd Bus Proxy"
+u systemd-network               -               "systemd Network Management"
+u systemd-resolve               -               "systemd Resolver"
+u systemd-timesync              -               "systemd Time Synchronization"
diff --git a/sysusers.d/systemd.conf.in b/sysusers.d/systemd.conf.in
deleted file mode 100644
index bbdc261..0000000
--- a/sysusers.d/systemd.conf.in
+++ /dev/null
@@ -1,45 +0,0 @@
-#  This file is part of systemd.
-#
-#  systemd is free software; you can redistribute it and/or modify it
-#  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.
-
-# The superuser
-u root                          0               "Super User"
-
-# The nobody user for NFS file systems
-u nobody                        65534           "Nobody"
-
-# Administrator group: can *see* more than normal users
-g adm                           -               -
-
-# Administrator group: can *do* more than normal users
-g wheel                         -               -
-
-# Access to certain kernel and userspace facilities
-g kmem                          -               -
-g lock                          -               -
-g tty                           @TTY_GID@               -
-g utmp                          -               -
-
-# Hardware access groups
-g audio                         -               -
-g cdrom                         -               -
-g dialout                       -               -
-g disk                          -               -
-g input                         -               -
-g lp                            -               -
-g tape                          -               -
-g video                         -               -
-
-# Default group for normal users
-g users                         -               -
-
-# Users and groups for specific systemd subsystems
-g systemd-journal               -               -
-u systemd-journal-gateway       -               "systemd Journal Gateway"
-u systemd-bus-proxy             -               "systemd Bus Proxy"
-u systemd-network               -               "systemd Network Management"
-u systemd-resolve               -               "systemd Resolver"
-u systemd-timesync              -               "systemd Time Synchronization"

commit 306a55c86360a7ae7b2509771d5ea6ab0d166d85
Author: Lennart Poettering <lennart at poettering.net>
Date:   Sun Jun 29 22:15:33 2014 +0200

    util: refuse considering UID 0xFFFF and 0xFFFFFFFF valid

diff --git a/src/shared/util.c b/src/shared/util.c
index e7ff0f8..1709bb7 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -280,6 +280,14 @@ int parse_uid(const char *s, uid_t* ret_uid) {
         if ((unsigned long) uid != ul)
                 return -ERANGE;
 
+        /* Some libc APIs use (uid_t) -1 as special placeholder */
+        if (uid == (uid_t) 0xFFFFFFFF)
+                return -EINVAL;
+
+        /* A long time ago UIDs where 16bit, hence explicitly avoid the 32bit -1 too */
+        if (uid == (uid_t) 0xFFFF)
+                return -EINVAL;
+
         *ret_uid = uid;
         return 0;
 }

commit 21236ab51082668914b933041893a1cf45218a3d
Author: Lennart Poettering <lennart at poettering.net>
Date:   Sun Jun 29 22:15:01 2014 +0200

    man: document the sysusers tool

diff --git a/Makefile-man.am b/Makefile-man.am
index 588bafa..db42df7 100644
--- a/Makefile-man.am
+++ b/Makefile-man.am
@@ -82,6 +82,7 @@ MANPAGES += \
 	man/systemd-sysctl.service.8 \
 	man/systemd-system-update-generator.8 \
 	man/systemd-system.conf.5 \
+	man/systemd-sysusers.8 \
 	man/systemd-tmpfiles.8 \
 	man/systemd-tty-ask-password-agent.1 \
 	man/systemd-udevd.service.8 \
@@ -108,6 +109,7 @@ MANPAGES += \
 	man/systemd.time.7 \
 	man/systemd.timer.5 \
 	man/systemd.unit.5 \
+	man/sysusers.d.5 \
 	man/telinit.8 \
 	man/tmpfiles.d.5 \
 	man/udev.7 \
@@ -206,6 +208,7 @@ MANPAGES_ALIAS += \
 	man/systemd-shutdownd.socket.8 \
 	man/systemd-sleep.8 \
 	man/systemd-sysctl.8 \
+	man/systemd-sysusers.service.8 \
 	man/systemd-tmpfiles-clean.service.8 \
 	man/systemd-tmpfiles-clean.timer.8 \
 	man/systemd-tmpfiles-setup-dev.service.8 \
@@ -309,6 +312,7 @@ man/systemd-shutdownd.8: man/systemd-shutdownd.service.8
 man/systemd-shutdownd.socket.8: man/systemd-shutdownd.service.8
 man/systemd-sleep.8: man/systemd-suspend.service.8
 man/systemd-sysctl.8: man/systemd-sysctl.service.8
+man/systemd-sysusers.service.8: man/systemd-sysusers.8
 man/systemd-tmpfiles-clean.service.8: man/systemd-tmpfiles.8
 man/systemd-tmpfiles-clean.timer.8: man/systemd-tmpfiles.8
 man/systemd-tmpfiles-setup-dev.service.8: man/systemd-tmpfiles.8
@@ -598,6 +602,9 @@ man/systemd-sleep.html: man/systemd-suspend.service.html
 man/systemd-sysctl.html: man/systemd-sysctl.service.html
 	$(html-alias)
 
+man/systemd-sysusers.service.html: man/systemd-sysusers.html
+	$(html-alias)
+
 man/systemd-tmpfiles-clean.service.html: man/systemd-tmpfiles.html
 	$(html-alias)
 
@@ -1618,6 +1625,7 @@ EXTRA_DIST += \
 	man/systemd-sysctl.service.xml \
 	man/systemd-system-update-generator.xml \
 	man/systemd-system.conf.xml \
+	man/systemd-sysusers.xml \
 	man/systemd-timedated.service.xml \
 	man/systemd-timesyncd.service.xml \
 	man/systemd-tmpfiles.xml \
@@ -1652,6 +1660,7 @@ EXTRA_DIST += \
 	man/systemd.timer.xml \
 	man/systemd.unit.xml \
 	man/systemd.xml \
+	man/sysusers.d.xml \
 	man/telinit.xml \
 	man/timedatectl.xml \
 	man/tmpfiles.d.xml \
diff --git a/man/systemd-sysusers.xml b/man/systemd-sysusers.xml
new file mode 100644
index 0000000..4de1973
--- /dev/null
+++ b/man/systemd-sysusers.xml
@@ -0,0 +1,117 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
+<refentry id="systemd-sysusers"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
+
+        <refentryinfo>
+                <title>systemd-sysusers</title>
+                <productname>systemd</productname>
+
+                <authorgroup>
+                        <author>
+                                <contrib>Developer</contrib>
+                                <firstname>Lennart</firstname>
+                                <surname>Poettering</surname>
+                                <email>lennart at poettering.net</email>
+                        </author>
+                </authorgroup>
+        </refentryinfo>
+
+        <refmeta>
+                <refentrytitle>systemd-sysusers</refentrytitle>
+                <manvolnum>8</manvolnum>
+        </refmeta>
+
+        <refnamediv>
+                <refname>systemd-sysusers</refname>
+                <refname>systemd-sysusers.service</refname>
+                <refpurpose>Allocate system users and groups</refpurpose>
+        </refnamediv>
+
+        <refsynopsisdiv>
+                <cmdsynopsis>
+                        <command>systemd-sysusers</command>
+                        <arg choice="opt" rep="repeat">OPTIONS</arg>
+                        <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg>
+                </cmdsynopsis>
+
+                <para><filename>systemd-sysusers.service</filename></para>
+        </refsynopsisdiv>
+
+        <refsect1>
+                <title>Description</title>
+
+                <para><command>systemd-sysusers</command> creates
+                system users and groups, based on the file format and
+                location specified in
+                <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+                </para>
+
+                <para>If invoked with no arguments, it applies all
+                directives from all files found. If one or more
+                filenames are passed on the command line, only the
+                directives in these files are applied. If only the
+                basename of a file is specified, all directories as
+                specified in
+                <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                are searched for a matching file.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>Options</title>
+
+                <para>The following options are understood:</para>
+
+                <variablelist>
+                        <varlistentry>
+                                <term><option>--root=<replaceable>root</replaceable></option></term>
+                                <listitem><para>Takes a directory path
+                                as an argument. All paths will be
+                                prefixed with the given alternate <replaceable>root</replaceable>
+                                path, including config search paths.
+                                </para></listitem>
+                        </varlistentry>
+
+                        <xi:include href="standard-options.xml" xpointer="help" />
+                        <xi:include href="standard-options.xml" xpointer="version" />
+                </variablelist>
+
+        </refsect1>
+
+        <refsect1>
+                <title>Exit status</title>
+
+                <para>On success, 0 is returned, a non-zero failure
+                code otherwise.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>See Also</title>
+                <para>
+                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                </para>
+        </refsect1>
+
+</refentry>
diff --git a/man/sysusers.d.xml b/man/sysusers.d.xml
new file mode 100644
index 0000000..af31ec0
--- /dev/null
+++ b/man/sysusers.d.xml
@@ -0,0 +1,180 @@
+<?xml version="1.0"?>
+<!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!--
+  This file is part of systemd.
+
+  Copyright 2014 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+<refentry id="sysusers.d">
+
+        <refentryinfo>
+                <title>sysusers.d</title>
+                <productname>systemd</productname>
+
+                <authorgroup>
+                        <author>
+                                <contrib>Developer</contrib>
+                                <firstname>Lennart</firstname>
+                                <surname>Poettering</surname>
+                                <email>lennart at poettering.net</email>
+                        </author>
+                </authorgroup>
+        </refentryinfo>
+
+        <refmeta>
+                <refentrytitle>sysusers.d</refentrytitle>
+                <manvolnum>5</manvolnum>
+        </refmeta>
+
+        <refnamediv>
+                <refname>sysusers.d</refname>
+                <refpurpose>Declarative allocation of system users and groups</refpurpose>
+        </refnamediv>
+
+        <refsynopsisdiv>
+                <para><filename>/usr/lib/sysusers.d/*.conf</filename></para>
+        </refsynopsisdiv>
+
+        <refsect1>
+                <title>Description</title>
+
+                <para><command>systemd-sysusers</command> uses the
+                files from <filename>/usr/lib/sysusers.d/</filename>
+                to create system users and groups at package
+                installation or boot time. This tool may be used for
+                allocating system users and groups only, it is not
+                useful for creating non-system users and groups, as it
+                accessed <filename>/etc/passwd</filename> and
+                <filename>/etc/group</filename> directly, bypassing
+                any more complex user database, for example any
+                database involving NIS or LDAP.</para>
+
+        </refsect1>
+
+        <refsect1>
+                <title>File Format</title>
+
+                <para>Each file shall be named in the style of
+                <filename><replaceable>package</replaceable>.conf</filename>.</para>
+
+                <para>All files are sorted by their filename in
+                lexicographic order, regardless of which of the
+                directories they reside in. If multiple files specify
+                the same user or group, the entry in the file with the
+                lexicographically earliest name will be applied, all
+                all other conflicting entries will be logged as
+                errors. Users and groups are
+                processed in the order they are listed.</para>
+
+                <para>The file format is one line per user or group
+                containing name, ID and GECOS field description:</para>
+
+                <programlisting># Type Name ID GECOS
+u httpd 440 "HTTP User"
+u authd /usr/bin/authd "Authorization user"
+g input - -</programlisting>
+
+                <refsect2>
+                        <title>Type</title>
+
+                        <para>The type consists of a single
+                        letter. The following line types are
+                        understood:</para>
+
+                        <variablelist>
+                                <varlistentry>
+                                        <term><varname>u</varname></term>
+                                        <listitem><para>Create a
+                                        system user and group of the
+                                        specified name should they not
+                                        exist yet. The user's primary
+                                        group will be set to the group
+                                        bearing the same name. The
+                                        user's shell will be set to
+                                        <filename>/sbin/login</filename>,
+                                        the home directory to
+                                        <filename>/</filename>. The
+                                        account will be created
+                                        disabled, so that logins are
+                                        not allowed.</para></listitem>
+                                </varlistentry>
+
+                                <varlistentry>
+                                        <term><varname>g</varname></term>
+                                        <listitem><para>Create a
+                                        system group of the specified
+                                        name should it not exist
+                                        yet. Note that
+                                        <varname>u</varname>
+                                        implicitly create a matching
+                                        group. The group will be
+                                        created with no password
+                                        set.</para></listitem>
+                                </varlistentry>
+                        </variablelist>
+                </refsect2>
+
+                <refsect2>
+                        <title>Name</title>
+
+                        <para>The name field specifies the user or
+                        group name. It should be be shorter than 256
+                        characters and avoid any non-ASCII characters,
+                        and not begin with a numeric character. It is
+                        strongly recommended to pick user and group
+                        names that are unlikely to clash with normal
+                        users created by the administrator. A good
+                        scheme to guarantee this is by prefixing all
+                        system and group names with the underscore,
+                        and avoiding too generic names.</para>
+                </refsect2>
+
+                <refsect2>
+                        <title>ID</title>
+
+                        <para>The numeric 32bit UID or GID of the
+                        user/group. Do not use IDs 65535 or
+                        4294967295, as they have special placeholder
+                        meanings. Specify "-" for automatic UID/GID
+                        allocation for the user or
+                        group. Alternatively, specify an absolute path
+                        in the file system. In this case the UID/GID
+                        is read from the path's owner/group. This is
+                        useful to create users whose UID/GID match the
+                        owners of pre-existing files (such as SUID or
+                        SGID binaries).</para>
+                </refsect2>
+
+                <refsect2>
+                        <title>GECOS</title>
+
+                        <para>A short, descriptive string for users to
+                        be created, enclosed in quotation marks. Note
+                        that this field may not contain colons.</para>
+                </refsect2>
+
+        </refsect1>
+
+        <refsect1>
+                <title>See Also</title>
+                <para>
+                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-sysusers</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                </para>
+        </refsect1>
+
+</refentry>



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