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<!doctype html public "-//w3c//dtd html 4.0 transitional//en"><html><head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="GENERATOR" content="Mozilla/4.72C-CCK-MCD Caldera Systems OpenLinux [en] (X11; U; Linux 2.2.14 i686) [Netscape]"> <title>OpenSLP - Static Registration File</title></head><body text="#000000" bgcolor="#FFFFFF" link="#0000EE" vlink="#551A8B" alink="#FF0000"><h2>The Static Registration File</h2><hr WIDTH="100%"><p>Often it will be very useful for OpenSLP users to be able to staticallyregister legacy services (applications that were not compiled to use theSLP library). To accommodate this need <a href="../../rfc/rfc2614.txt">RFC2614</a> specifies a syntax for a registration file that is read by theOpenSLP daemon (slpd). All of the registrations from the registrationfile are maintained by slpd and will remain registered as long as slpdis alive. The default location for the registration can be changedfrom <tt>/etc/slp.reg</tt>to another location using the <a href="CommandLine.html">-rcommand line option</a><tt>. slpd reads the slp.reg </tt>file onstartup and re-reads it when ever the SIGHUP signal is received.<h3><tt>Syntax</tt></h3>The registration file format is pretty easy to understand. It canget complicated so if you have any questions after reading this pleaseconsult <a href="../../rfc/rfc2614.txt">RFC 2614.</a>Each registration consists of several lines with the following format:<br> <blockquote><b><tt>#comment</tt></b><br><b><tt>;comment</tt></b><br><b><tt>service-url,language-tag,lifetime,[service-type]<newline></tt></b><br><b><tt>"scopes="[scope-list]<newline></tt></b><br><b><tt>[attrid]"="val1<newline></tt></b><br><b><tt>[attrid]"="val1,val2,val3<newline></tt></b><br><b><tt><newline></tt></b></blockquote><p><br><b><tt>service-url</tt></b><blockquote>(Required) The service-url which must follow the Service URLsyntax explained <a href="#Service URL Syntax">below</a>.</blockquote><b><tt>language-tag</tt></b><blockquote>(Required) The language-tag uses the (two character) languagetags as specified by <a href="../../rfc/rfc1766.txt">RFC1766</a> ("en" "fr", "de", etc...)</blockquote><b><tt>lifetime</tt></b><blockquote>(Required) The lifetime of the registration in seconds. Value must be between 0 and 65535. Use 65535 if you want the registrationto be maintained for the life of slpd.</blockquote><b><tt>service-type</tt></b><blockquote>(Optional) The type of service being registered. Ignoredby OpenSLP because service-url must conform to the SLP Service URL format.</blockquote><b><tt>scope-list</tt></b><blockquote>(Optional) List of comma delimited scopes to register the servicein. If omitted then service is registered in all scopes specifiedby the <tt><a href="SlpConf.html">slp.conf</a></tt>file.</blockquote><b><tt>attrs</tt></b><blockquote>(Optional) The attributes to register along with the service. Any string but "scopes" or "SCOPES" can be used as an attrid. Notethat the '"' character has no real significance. Strings should not bequoted!</blockquote><h3>Examples</h3>Several examples of registration entries are provided below:<br> <blockquote><tt>#Register a OpenSLP testing service</tt><br><tt>service:test.openslp://192.168.100.1,en,65535</tt><br><tt>scopes=test1,test2</tt><br><tt>description=OpenSLP Testing Service</tt><br><tt>authors=mpeterson,jcarey</tt><p><tt>#Register ssh service</tt><br><tt>service:ssh.openslp://192.168.100.1,en,65535</tt><br><tt>#use default scopes</tt><br><tt>description=Secure Shell</tt><p><tt>#Register telnet service with no attributes</tt><br><tt>service:telnet.myorg://192.168.100.1,en,65535</tt><br><tt>#use default scopes</tt></blockquote><h3><a NAME="Service URL Syntax"></a>Service URL Syntax</h3>If you decide to use Service URLs extensively, you should probablyread <a href="../../rfc/rfc2609.txt">RFC 2609</a>,but if you just want to know what they look like, the following explanationshould be good enough:<blockquote><tt>service-url = "service:"<service-type>"://"<addrspec></tt></blockquote>The service-type is a service type as explained <a href="#SLP Service Type Syntax">below</a>.addrspec can be just about anything you want that fits URL syntax (see<a href="../../rfc/rfc2396.txt">RFC 2396</a>) and can be translated as a network location. The "<tt>service:</tt>"and "<tt>://</tt>" strings are required.<p><b>Service URL Examples</b><p><tt>service:weather.nasa:wtp://weather.nasa.com:12000</tt><br><tt>service:weather.nasa:swtp://weather.nasa.com:12001</tt><br><tt>service:chat.superchat://chat.superchat.com;auth=ldap</tt><br> <h3><a NAME="SLP Service Type Syntax"></a>SLP Service Type Syntax</h3>The official definition of Service Type strings can be found in <a href="../../rfc/rfc2609.txt">RFC 2609</a>, "Service Templates and Service Schemes". If you will beworking with "well known" (IANA) service types, you should read it. If you are developing applications for "proprietary" services then youwill probably be satisfied with the following explanation:<p> <tt>service-type = <abstract-type.naming-authority>":"<concrete-type></tt><p>The abstract-type is simple (hopefully short) descriptive string thatdescribes the type of service. The naming-authority is the name (hopefullyunique) name of the organization that named the service. The naming-authorityis optional, but if it is omitted then IANA is assumed to be the namingauthority and IANA requires service-types to be registered (see <a href="../../rfc/rfc2609.txt">RFC 2609</a>). The concrete-type is also optional. Think of a concrete-typeas a kind of sub-type of the abstract-type. For example, "printer"is an abstract type (owned by IANA) and "printer:lpr" is a concrete type(owned by IANA).<p><b>Service Type Examples</b><p><tt>weather.nasa:wtp</tt> - A (fictitious) weather service typeowned by NASA that uses Weather Transfer protocol<br>weather.nasa:swtp - A (fictitious) weather service type owned by NASAthat uses Simple Weather Transfer protocol.<br><tt>chat.superchat</tt> - A chat service type owned by SuperChat<br><tt>printer.samba</tt> - A samba printer service type<br><tt>ftp</tt> - An IANA ftp service type<br><tt>telnet</tt> - An IANA telnet service type<br> </body></html>⌨️ 快捷键说明
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