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diff --git a/man/sd_bus_creds_new_from_pid.xml b/man/sd_bus_creds_new_from_pid.xml deleted file mode 100644 index b4d7d61d0f..0000000000 --- a/man/sd_bus_creds_new_from_pid.xml +++ /dev/null @@ -1,353 +0,0 @@ -<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> -<!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 Zbigniew Jędrzejewski-Szmek - - 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="sd_bus_creds_new_from_pid"> - - <refentryinfo> - <title>sd_bus_creds_new_from_pid</title> - <productname>systemd</productname> - - <authorgroup> - <author> - <contrib>A monkey with a typewriter</contrib> - <firstname>Zbigniew</firstname> - <surname>Jędrzejewski-Szmek</surname> - <email>zbyszek@in.waw.pl</email> - </author> - </authorgroup> - </refentryinfo> - - <refmeta> - <refentrytitle>sd_bus_creds_new_from_pid</refentrytitle> - <manvolnum>3</manvolnum> - </refmeta> - - <refnamediv> - <refname>sd_bus_creds_new_from_pid</refname> - <refname>sd_bus_creds_get_mask</refname> - <refname>sd_bus_creds_get_augmented_mask</refname> - <refname>sd_bus_creds_ref</refname> - <refname>sd_bus_creds_unref</refname> - <refname>sd_bus_creds_unrefp</refname> - - <refpurpose>Retrieve credentials object for the specified PID</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> - - <funcprototype> - <funcdef>int <function>sd_bus_creds_new_from_pid</function></funcdef> - <paramdef>pid_t <parameter>pid</parameter></paramdef> - <paramdef>uint64_t <parameter>creds_mask</parameter></paramdef> - <paramdef>sd_bus_creds **<parameter>ret</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>uint64_t <function>sd_bus_creds_get_mask</function></funcdef> - <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>uint64_t <function>sd_bus_creds_get_augmented_mask</function></funcdef> - <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>sd_bus_creds *<function>sd_bus_creds_ref</function></funcdef> - <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>sd_bus_creds *<function>sd_bus_creds_unref</function></funcdef> - <paramdef>sd_bus_creds *<parameter>c</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>void <function>sd_bus_creds_unrefp</function></funcdef> - <paramdef>sd_bus_creds **<parameter>c</parameter></paramdef> - </funcprototype> - </funcsynopsis> - - <para> - <constant>SD_BUS_CREDS_PID</constant>, - <constant>SD_BUS_CREDS_PPID</constant>, - <constant>SD_BUS_CREDS_TID</constant>, - <constant>SD_BUS_CREDS_UID</constant>, - <constant>SD_BUS_CREDS_EUID</constant>, - <constant>SD_BUS_CREDS_SUID</constant>, - <constant>SD_BUS_CREDS_FSUID</constant>, - <constant>SD_BUS_CREDS_GID</constant>, - <constant>SD_BUS_CREDS_EGID</constant>, - <constant>SD_BUS_CREDS_SGID</constant>, - <constant>SD_BUS_CREDS_FSGID</constant>, - <constant>SD_BUS_CREDS_SUPPLEMENTARY_GIDS</constant>, - <constant>SD_BUS_CREDS_COMM</constant>, - <constant>SD_BUS_CREDS_TID_COMM</constant>, - <constant>SD_BUS_CREDS_EXE</constant>, - <constant>SD_BUS_CREDS_CMDLINE</constant>, - <constant>SD_BUS_CREDS_CGROUP</constant>, - <constant>SD_BUS_CREDS_UNIT</constant>, - <constant>SD_BUS_CREDS_SLICE</constant>, - <constant>SD_BUS_CREDS_USER_UNIT</constant>, - <constant>SD_BUS_CREDS_USER_SLICE</constant>, - <constant>SD_BUS_CREDS_SESSION</constant>, - <constant>SD_BUS_CREDS_OWNER_UID</constant>, - <constant>SD_BUS_CREDS_EFFECTIVE_CAPS</constant>, - <constant>SD_BUS_CREDS_PERMITTED_CAPS</constant>, - <constant>SD_BUS_CREDS_INHERITABLE_CAPS</constant>, - <constant>SD_BUS_CREDS_BOUNDING_CAPS</constant>, - <constant>SD_BUS_CREDS_SELINUX_CONTEXT</constant>, - <constant>SD_BUS_CREDS_AUDIT_SESSION_ID</constant>, - <constant>SD_BUS_CREDS_AUDIT_LOGIN_UID</constant>, - <constant>SD_BUS_CREDS_TTY</constant>, - <constant>SD_BUS_CREDS_UNIQUE_NAME</constant>, - <constant>SD_BUS_CREDS_WELL_KNOWN_NAMES</constant>, - <constant>SD_BUS_CREDS_DESCRIPTION</constant>, - <constant>SD_BUS_CREDS_AUGMENT</constant>, - <constant>_SD_BUS_CREDS_ALL</constant> - </para> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><function>sd_bus_creds_new_from_pid()</function> creates a - new credentials object and fills it with information about the - process <parameter>pid</parameter>. The pointer to this object - will be stored in the <parameter>ret</parameter> pointer. Note that - credential objects may also be created and retrieved via - <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry> - and - <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para> - - <para>The information that will be stored is determined by - <parameter>creds_mask</parameter>. It may contain a subset of ORed - constants <constant>SD_BUS_CREDS_PID</constant>, - <constant>SD_BUS_CREDS_PPID</constant>, - <constant>SD_BUS_CREDS_TID</constant>, - <constant>SD_BUS_CREDS_UID</constant>, - <constant>SD_BUS_CREDS_EUID</constant>, - <constant>SD_BUS_CREDS_SUID</constant>, - <constant>SD_BUS_CREDS_FSUID</constant>, - <constant>SD_BUS_CREDS_GID</constant>, - <constant>SD_BUS_CREDS_EGID</constant>, - <constant>SD_BUS_CREDS_SGID</constant>, - <constant>SD_BUS_CREDS_FSGID</constant>, - <constant>SD_BUS_CREDS_SUPPLEMENTARY_GIDS</constant>, - <constant>SD_BUS_CREDS_COMM</constant>, - <constant>SD_BUS_CREDS_TID_COMM</constant>, - <constant>SD_BUS_CREDS_EXE</constant>, - <constant>SD_BUS_CREDS_CMDLINE</constant>, - <constant>SD_BUS_CREDS_CGROUP</constant>, - <constant>SD_BUS_CREDS_UNIT</constant>, - <constant>SD_BUS_CREDS_SLICE</constant>, - <constant>SD_BUS_CREDS_USER_UNIT</constant>, - <constant>SD_BUS_CREDS_USER_SLICE</constant>, - <constant>SD_BUS_CREDS_SESSION</constant>, - <constant>SD_BUS_CREDS_OWNER_UID</constant>, - <constant>SD_BUS_CREDS_EFFECTIVE_CAPS</constant>, - <constant>SD_BUS_CREDS_PERMITTED_CAPS</constant>, - <constant>SD_BUS_CREDS_INHERITABLE_CAPS</constant>, - <constant>SD_BUS_CREDS_BOUNDING_CAPS</constant>, - <constant>SD_BUS_CREDS_SELINUX_CONTEXT</constant>, - <constant>SD_BUS_CREDS_AUDIT_SESSION_ID</constant>, - <constant>SD_BUS_CREDS_AUDIT_LOGIN_UID</constant>, - <constant>SD_BUS_CREDS_TTY</constant>, - <constant>SD_BUS_CREDS_UNIQUE_NAME</constant>, - <constant>SD_BUS_CREDS_WELL_KNOWN_NAMES</constant>, and - <constant>SD_BUS_CREDS_DESCRIPTION</constant>. Use the special - value <constant>_SD_BUS_CREDS_ALL</constant> to request all - supported fields. The <constant>SD_BUS_CREDS_AUGMENT</constant> - constant may not be ORed into the mask for invocations of - <function>sd_bus_creds_new_from_pid()</function>.</para> - - <para>Fields can be retrieved from the credentials object using - <citerefentry><refentrytitle>sd_bus_creds_get_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry> - and other functions which correspond directly to the constants - listed above.</para> - - <para>A mask of fields which were actually successfully retrieved - can be retrieved with - <function>sd_bus_creds_get_mask()</function>. If the credentials - object was created with - <function>sd_bus_creds_new_from_pid()</function>, this will be a - subset of fields requested in <parameter>creds_mask</parameter>. - </para> - - <para>Similar to <function>sd_bus_creds_get_mask()</function>, the - function <function>sd_bus_creds_get_augmented_mask()</function> - returns a bitmask of field constants. The mask indicates which - credential fields have been retrieved in a non-atomic fashion. For - credential objects created via - <function>sd_bus_creds_new_from_pid()</function>, this mask will be - identical to the mask returned by - <function>sd_bus_creds_get_mask()</function>. However, for - credential objects retrieved via - <function>sd_bus_get_name_creds()</function>, this mask will be set - for the credential fields that could not be determined atomically - at peer connection time, and which were later added by reading - augmenting credential data from - <filename>/proc</filename>. Similarly, for credential objects - retrieved via <function>sd_bus_get_owner_creds()</function>, the - mask is set for the fields that could not be determined atomically - at bus creation time, but have been augmented. Similarly, for - credential objects retrieved via - <function>sd_bus_message_get_creds()</function>, the mask is set - for the fields that could not be determined atomically at message - sending time, but have been augmented. The mask returned by - <function>sd_bus_creds_get_augmented_mask()</function> is always a - subset of (or identical to) the mask returned by - <function>sd_bus_creds_get_mask()</function> for the same - object. The latter call hence returns all credential fields - available in the credential object, the former then marks the - subset of those that have been augmented. Note that augmented - fields are unsuitable for authorization decisions, as they may be - retrieved at different times, thus being subject to races. Hence, - augmented fields should be used exclusively for informational - purposes. - </para> - - <para><function>sd_bus_creds_ref()</function> creates a new - reference to the credentials object <parameter>c</parameter>. This - object will not be destroyed until - <function>sd_bus_creds_unref()</function> has been called as many - times plus once more. Once the reference count has dropped to zero, - <parameter>c</parameter> cannot be used anymore, so further - calls to <function>sd_bus_creds_ref(c)</function> or - <function>sd_bus_creds_unref(c)</function> are illegal.</para> - - <para><function>sd_bus_creds_unref()</function> destroys a reference - to <parameter>c</parameter>.</para> - - <para><function>sd_bus_creds_unrefp()</function> is similar to - <function>sd_bus_creds_unref()</function> but takes a pointer to a - pointer to an <type>sd_bus_creds</type> object. This call is useful in - conjunction with GCC's and LLVM's <ulink - url="https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html">Clean-up - Variable Attribute</ulink>. Note that this function is defined as - inline function.</para> - - <para><function>sd_bus_creds_ref()</function>, - <function>sd_bus_creds_unref()</function> and - <function>sd_bus_creds_unrefp()</function> execute no operation if - the passed in bus credentials object is - <constant>NULL</constant>.</para> - - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>On success, <function>sd_bus_creds_new_from_pid()</function> - returns 0 or a positive integer. On failure, it returns a negative - errno-style error code.</para> - - <para><function>sd_bus_creds_get_mask()</function> returns the - mask of successfully acquired fields.</para> - - <para><function>sd_bus_creds_get_augmented_mask()</function> - returns the mask of fields that have been augmented from data in - <filename>/proc</filename>, and are thus not suitable for - authorization decisions.</para> - - <para><function>sd_bus_creds_ref()</function> always returns the - argument.</para> - - <para><function>sd_bus_creds_unref()</function> always returns - <constant>NULL</constant>.</para> - </refsect1> - - <refsect1> - <title>Reference ownership</title> - - <para>Function <function>sd_bus_creds_new_from_pid()</function> - creates a new object and the caller owns the sole reference. When - not needed anymore, this reference should be destroyed with - <citerefentry><refentrytitle>sd_bus_creds_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>. - </para> - </refsect1> - - <refsect1> - <title>Errors</title> - - <para>Returned errors may indicate the following problems:</para> - - <variablelist> - - <varlistentry> - <term><constant>-ESRCH</constant></term> - - <listitem><para>Specified <parameter>pid</parameter> could not - be found.</para></listitem> - </varlistentry> - - <varlistentry> - <term><constant>-EINVAL</constant></term> - - <listitem><para>Specified parameter is invalid - (<constant>NULL</constant> in case of output - parameters).</para></listitem> - </varlistentry> - - <varlistentry> - <term><constant>-ENOMEM</constant></term> - - <listitem><para>Memory allocation failed.</para></listitem> - </varlistentry> - - <varlistentry> - <term><constant>-EOPNOTSUPP</constant></term> - - <listitem><para>One of the requested fields is unknown to the local system.</para></listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Notes</title> - - <para><function>sd_bus_creds_new_from_pid()</function> and the - other calls described here are available as a shared library, - which can be compiled and linked to with the - <constant>libsystemd</constant> <citerefentry - project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> - file.</para> - </refsect1> - - <refsect1> - <title>See Also</title> - - <para> - <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_creds_get_pid</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_get_name_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_get_owner_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_message_get_creds</refentrytitle><manvolnum>3</manvolnum></citerefentry> - </para> - </refsect1> - -</refentry> |