1 .TH SLAPD-SOCK 5 "RELEASEDATE" "OpenLDAP LDVERSION"
2 .\" Copyright 2007-2011 The OpenLDAP Foundation All Rights Reserved.
3 .\" Copying restrictions apply. See COPYRIGHT/LICENSE.
6 slapd\-sock \- Socket backend/overlay to slapd
12 uses an external program to handle queries, similarly to
14 However, in this case the external program listens on a Unix domain socket.
15 This makes it possible to have a pool of processes, which persist between
16 requests. This allows multithreaded operation and a higher level of
17 efficiency. The external program must have been started independently;
19 itself will not start it.
21 This module may also be used as an overlay on top of some other database.
22 Use as an overlay allows external actions to be triggered in response to
23 operations on the main database.
27 options apply to the SOCK backend database.
28 That is, they must follow a "database sock" line and come before any
29 subsequent "backend" or "database" lines.
30 Other database options are described in the
34 Alternatively, to use this module as an overlay, these directives must
35 follow an "overlay sock" line within an existing database definition.
37 .B extensions [ binddn | peername | ssf | connid ]*
38 Enables the sending of additional meta-attributes with each request.
41 peername: IP=<address>:<port>
43 connid: <connection ID>
46 .B socketpath <pathname>
47 Gives the path to a Unix domain socket to which the commands will
48 be sent and from which replies are received.
50 The protocol is essentially the same as
52 with the addition of a newline to terminate the command parameters. The
53 following commands are sent:
58 <repeat { "suffix:" <database suffix DN> }>
59 <entry in LDIF format>
68 <repeat { "suffix:" <database suffix DN> }>
70 method: <method number>
71 credlen: <length of <credentials>>
81 <repeat { "suffix:" <database suffix DN> }>
92 <repeat { "suffix:" <database suffix DN> }>
102 <repeat { "suffix:" <database suffix DN> }>
105 <"add"/"delete"/"replace">: <attribute>
106 <repeat { <attribute>: <value> }>
117 <repeat { "suffix:" <database suffix DN> }>
120 deleteoldrdn: <0 or 1>
121 <if new superior is specified: "newSuperior: <DN>">
130 <repeat { "suffix:" <database suffix DN> }>
132 scope: <0-2, see ldap.h>
133 deref: <0-3, see ldap.h>
134 sizelimit: <size limit>
135 timelimit: <time limit>
138 attrs: <"all" or space-separated attribute list>
147 <repeat { "suffix:" <database suffix DN> }>
152 The commands - except \fBunbind\fP - should output:
157 matched: <matched DN>
161 where only RESULT is mandatory, and then close the socket.
162 The \fBsearch\fP RESULT should be preceded by the entries in LDIF
163 format, each entry followed by a blank line.
164 Lines starting with `#' or `DEBUG:' are ignored.
166 When used as an overlay, the result from an operation is also sent,
167 so the external program can see if the operation succeeded or not.
168 This message is similar to the RESULT message above, but
169 will also include any configured extensions:
175 matched: <matched DN>
179 Typically both the msgid and the connid will be needed to match
180 a result message to a request.
184 backend does not honor all ACL semantics as described in
185 .BR slapd.access (5).
186 In general, access to objects is checked by using a dummy object
187 that contains only the DN, so access rules that rely on the contents
188 of the object are not honored.
193 operation does not require
197 pseudo-attribute of the parent entry.
205 pseudo-attribute of the entry whose identity is being assessed;
207 access to the credentials is not checked, but rather delegated
208 to the underlying program.
217 of the object whose value is being asserted;
219 access to the attribute whose value is being asserted is not checked.
223 operation does not require
227 pseudo-attribute of the parent entry.
237 access to the specific attributes that are modified is not checked.
241 operation does not require
245 pseudo-attribute of the parent entry, nor to that of the new parent,
248 access to the distinguished values of the naming attributes
253 operation does not require
257 pseudo_attribute of the searchBase;
259 access to the attributes and values used in the filter is not checked.
262 There is an example script in the slapd/back\-sock/ directory
263 in the OpenLDAP source tree.
267 default slapd configuration file
270 .BR slapd\-config (5),
273 Brian Candler, with enhancements by Howard Chu