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120 lines
4.0 KiB
XML
120 lines
4.0 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
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<refentry id="cifs.upcall.8">
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<refmeta>
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<refentrytitle>cifs.upcall</refentrytitle>
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<manvolnum>8</manvolnum>
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<refmiscinfo class="source">Samba</refmiscinfo>
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<refmiscinfo class="manual">System Administration tools</refmiscinfo>
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<refmiscinfo class="version">3.2</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>cifs.upcall</refname>
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<refpurpose>Userspace upcall helper for Common Internet File System (CIFS)</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>cifs.upcall</command>
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<arg choice="opt">-c</arg>
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<arg choice="opt">-v</arg>
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<arg choice="req">keyid</arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>DESCRIPTION</title>
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<para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
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<manvolnum>7</manvolnum></citerefentry> suite.</para>
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<para>cifs.upcall is a userspace helper program for the linux CIFS client
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filesystem. There are a number of activities that the kernel cannot easily
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do itself. This program is a callout program that does these things for the
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kernel and then returns the result.</para>
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<para>cifs.upcall is generally intended to be run when the kernel calls
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request-key<manvolnum>8</manvolnum> for a particular key type. While it
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can be run directly from the command-line, it's not generally intended
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to be run that way.</para>
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</refsect1>
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<refsect1>
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<title>OPTIONS</title>
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<variablelist>
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<varlistentry>
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<term>-c</term>
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<listitem><para>When handling a kerberos upcall, use a service principal that starts with "cifs/". The default is to use the "host/" service principal.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>-v</term>
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<listitem><para>Print version number and exit.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>CONFIGURATION FOR KEYCTL</title>
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<para>cifs.upcall is designed to be called from the kernel via the
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request-key callout program. This requires that request-key be told
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where and how to call this program. The current cifs.upcall program
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handles two different key types:
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</para>
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<variablelist>
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<varlistentry>
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<term>cifs.spnego</term>
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<listitem><para>This keytype is for retrieving kerberos session keys
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>dns_resolver</term>
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<listitem><para>This key type is for resolving hostnames into IP addresses
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</para></listitem>
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</varlistentry>
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</variablelist>
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<para>To make this program useful for CIFS, you'll need to set up entries for them in request-key.conf<manvolnum>5</manvolnum>. Here's an example of an entry for each key type:</para>
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<programlisting>
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#OPERATION TYPE D C PROGRAM ARG1 ARG2...
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#========= ============= = = ==========================================
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create cifs.spnego * * /usr/local/sbin/cifs.upcall -c %k
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create dns_resolver * * /usr/local/sbin/cifs.upcall %k
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</programlisting>
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<para>
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See <citerefentry><refentrytitle>request-key.conf<manvolnum>5</manvolnum></refentrytitle></citerefentry> for more info on each field.
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</para>
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</refsect1>
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<refsect1>
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<title>SEE ALSO</title>
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<para>
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<citerefentry><refentrytitle>request-key.conf</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>mount.cifs</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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<refsect1>
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<title>AUTHOR</title>
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<para>Igor Mammedov wrote the cifs.upcall program.</para>
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<para>Jeff Layton authored this manpage.</para>
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<para>The maintainer of the Linux CIFS VFS is Steve French.</para>
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<para>The <ulink url="mailto:linux-cifs-client@lists.samba.org">Linux
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CIFS Mailing list</ulink> is the preferred place to ask
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questions regarding these programs.
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</para>
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</refsect1>
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</refentry>
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