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Contrib module uuid-ossp for generating UUID values using the OSSP UUID

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library.  New configure option --with-ossp-uuid to activate.
This commit is contained in:
Peter Eisentraut 2007-04-21 17:26:18 +00:00
parent 71495f296e
commit 74496bc298
12 changed files with 421 additions and 6 deletions
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37
configure vendored
View File

@ -314,7 +314,7 @@ ac_includes_default="\
# include <unistd.h>
#endif"
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS configure_args build build_cpu build_vendor build_os host host_cpu host_vendor host_os PORTNAME docdir enable_nls WANTED_LANGUAGES default_port enable_shared enable_rpath enable_debug enable_profiling DTRACE DTRACEFLAGS enable_dtrace CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP GCC TAS autodepend INCLUDES enable_thread_safety with_tcl with_perl with_python with_krb5 krb_srvtab with_pam with_ldap with_bonjour with_openssl XML2_CONFIG with_libxml with_libxslt with_zlib EGREP ELF_SYS LDFLAGS_SL AWK FLEX FLEXFLAGS LN_S LD with_gnu_ld ld_R_works RANLIB ac_ct_RANLIB TAR STRIP ac_ct_STRIP STRIP_STATIC_LIB STRIP_SHARED_LIB YACC YFLAGS PERL perl_archlibexp perl_privlibexp perl_useshrplib perl_embed_ldflags PYTHON python_version python_configdir python_includespec python_libdir python_libspec python_additional_libs HAVE_IPV6 LIBOBJS acx_pthread_config PTHREAD_CC PTHREAD_LIBS PTHREAD_CFLAGS LDAP_LIBS_FE LDAP_LIBS_BE HAVE_POSIX_SIGNALS MSGFMT MSGMERGE XGETTEXT localedir TCLSH TCL_CONFIG_SH TCL_INCLUDE_SPEC TCL_LIB_FILE TCL_LIBS TCL_LIB_SPEC TCL_SHARED_BUILD TCL_SHLIB_LD_LIBS NSGMLS JADE have_docbook DOCBOOKSTYLE COLLATEINDEX SGMLSPL vpath_build LTLIBOBJS'
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS configure_args build build_cpu build_vendor build_os host host_cpu host_vendor host_os PORTNAME docdir enable_nls WANTED_LANGUAGES default_port enable_shared enable_rpath enable_debug enable_profiling DTRACE DTRACEFLAGS enable_dtrace CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP GCC TAS autodepend INCLUDES enable_thread_safety with_tcl with_perl with_python with_krb5 krb_srvtab with_pam with_ldap with_bonjour with_openssl with_ossp_uuid XML2_CONFIG with_libxml with_libxslt with_zlib EGREP ELF_SYS LDFLAGS_SL AWK FLEX FLEXFLAGS LN_S LD with_gnu_ld ld_R_works RANLIB ac_ct_RANLIB TAR STRIP ac_ct_STRIP STRIP_STATIC_LIB STRIP_SHARED_LIB YACC YFLAGS PERL perl_archlibexp perl_privlibexp perl_useshrplib perl_embed_ldflags PYTHON python_version python_configdir python_includespec python_libdir python_libspec python_additional_libs HAVE_IPV6 LIBOBJS acx_pthread_config PTHREAD_CC PTHREAD_LIBS PTHREAD_CFLAGS LDAP_LIBS_FE LDAP_LIBS_BE HAVE_POSIX_SIGNALS MSGFMT MSGMERGE XGETTEXT localedir TCLSH TCL_CONFIG_SH TCL_INCLUDE_SPEC TCL_LIB_FILE TCL_LIBS TCL_LIB_SPEC TCL_SHARED_BUILD TCL_SHLIB_LD_LIBS NSGMLS JADE have_docbook DOCBOOKSTYLE COLLATEINDEX SGMLSPL vpath_build LTLIBOBJS'
ac_subst_files=''
# Initialize some variables set by options.
@ -895,6 +895,7 @@ Optional Packages:
--with-openssl build with OpenSSL support
--without-readline do not use GNU Readline nor BSD Libedit for editing
--with-libedit-preferred prefer BSD Libedit over GNU Readline
--with-ossp-uuid build with OSSP UUID library for UUID generation
--with-libxml build with XML support
--with-libxslt build with XSLT support
--without-zlib do not use Zlib
@ -4241,6 +4242,39 @@ fi;
#
# OSSP UUID library
#
pgac_args="$pgac_args with_ossp_uuid"
# Check whether --with-ossp-uuid or --without-ossp-uuid was given.
if test "${with_ossp_uuid+set}" = set; then
withval="$with_ossp_uuid"
case $withval in
yes)
:
;;
no)
:
;;
*)
{ { echo "$as_me:$LINENO: error: no argument expected for --with-ossp-uuid option" >&5
echo "$as_me: error: no argument expected for --with-ossp-uuid option" >&2;}
{ (exit 1); exit 1; }; }
;;
esac
else
with_ossp_uuid=no
fi;
#
# XML
#
@ -24589,6 +24623,7 @@ s,@with_pam@,$with_pam,;t t
s,@with_ldap@,$with_ldap,;t t
s,@with_bonjour@,$with_bonjour,;t t
s,@with_openssl@,$with_openssl,;t t
s,@with_ossp_uuid@,$with_ossp_uuid,;t t
s,@XML2_CONFIG@,$XML2_CONFIG,;t t
s,@with_libxml@,$with_libxml,;t t
s,@with_libxslt@,$with_libxslt,;t t

9
configure.in
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@ -1,5 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
dnl $PostgreSQL: pgsql/configure.in,v 1.511 2007/04/15 12:48:23 adunstan Exp $
dnl $PostgreSQL: pgsql/configure.in,v 1.512 2007/04/21 17:26:17 petere Exp $
dnl
dnl Developers, please strive to achieve this order:
dnl
@ -555,6 +555,13 @@ PGAC_ARG_BOOL(with, libedit-preferred, no,
[ --with-libedit-preferred prefer BSD Libedit over GNU Readline])
#
# OSSP UUID library
#
PGAC_ARG_BOOL(with, ossp-uuid, no, [ --with-ossp-uuid build with OSSP UUID library for UUID generation])
AC_SUBST(with_ossp_uuid)
#
# XML
#

6
contrib/Makefile
View File

@ -1,4 +1,4 @@
# $PostgreSQL: pgsql/contrib/Makefile,v 1.74 2007/04/15 12:48:23 adunstan Exp $
# $PostgreSQL: pgsql/contrib/Makefile,v 1.75 2007/04/21 17:26:17 petere Exp $
subdir = contrib
top_builddir = ..
@ -37,6 +37,10 @@ ifeq ($(with_openssl),yes)
WANTED_DIRS += sslinfo
endif
ifeq ($(with_ossp_uuid),yes)
WANTED_DIRS += uuid-ossp
endif
ifeq ($(with_libxml),yes)
ifeq ($(with_libxslt),yes)
WANTED_DIRS += xml2

4
contrib/README
View File

@ -133,6 +133,10 @@ tsearch2 -
by Teodor Sigaev <teodor@sigaev.ru> and Oleg Bartunov
<oleg@sai.msu.su>.
uuid-ossp -
UUID generation functions
by Peter Eisentraut <peter_e@gmx.net>
vacuumlo -
Remove orphaned large objects
by Peter T Mount <peter@retep.org.uk>

19
contrib/uuid-ossp/Makefile Normal file
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@ -0,0 +1,19 @@
# $PostgreSQL: pgsql/contrib/uuid-ossp/Makefile,v 1.1 2007/04/21 17:26:17 petere Exp $
MODULE_big = uuid-ossp
OBJS = uuid-ossp.o
DATA_built = uuid-ossp.sql
DATA = uninstall_uuid-ossp.sql
DOCS = README.uuid-ossp
SHLIB_LINK += -lossp-uuid
ifdef USE_PGXS
PGXS := $(shell pg_config --pgxs)
include $(PGXS)
else
subdir = contrib/uuid-ossp
top_builddir = ../..
include $(top_builddir)/src/Makefile.global
include $(top_srcdir)/contrib/contrib-global.mk
endif

97
contrib/uuid-ossp/README.uuid-ossp Normal file
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@ -0,0 +1,97 @@
UUID Generation Functions
=========================
Peter Eisentraut <peter_e@gmx.net>
This module provides functions to generate universally unique
identifiers (UUIDs) using one of the several standard algorithms, as
well as functions to produce certain special UUID constants.
Installation
------------
The extra library required can be found at
<http://www.ossp.org/pkg/lib/uuid/>.
UUID Generation
---------------
The relevant standards ITU-T Rec. X.667, ISO/IEC 9834-8:2005, and RFC
4122 specify four algorithms for generating UUIDs, identified by the
version numbers 1, 3, 4, and 5. (There is no version 2 algorithm.)
Each of these algorithms could be suitable for a different set of
applications.
uuid_generate_v1()
~~~~~~~~~~~~~~~~~~
This function generates a version 1 UUID. This involves the MAC
address of the computer and a time stamp. Note that UUIDs of this
kind reveal the identity of the computer that created the identifier
and the time at which it did so, which might make it unsuitable for
certain security-sensitive applications.
uuid_generate_v1mc()
~~~~~~~~~~~~~~~~~~~~
This function generates a version 1 UUID but uses a random multicast
MAC address instead of the real MAC address of the computer.
uuid_generate_v3(namespace uuid, name text)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This function generates a version 3 UUID in the given namespace using
the specified input name. The namespace should be one of the special
constants produced by the uuid_ns_*() functions shown below. (It
should be any UUID in theory.) The name is an identifier in the
selected namespace. For example:
uuid_generate_v3(uuid_ns_url(), 'http://www.postgresql.org')
The name parameter will be MD5-hashed, so the cleartext cannot be
derived from the generated UUID.
The generation of UUIDs by this method has no random or
environment-dependent element and is therefore reproducible.
uuid_generate_v4()
~~~~~~~~~~~~~~~~~~
This function generates a version 4 UUID, which is derived entirely
from random numbers.
uuid_generate_v5(namespace uuid, name text)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This function generates a version 5 UUID, which works like a version 3
UUID except that SHA-1 is used as a hashing method. Version 5 should
be preferred over version 3 because SHA-1 is thought to be more secure
than MD5.
UUID Constants
--------------
uuid_nil()
A "nil" UUID constant, which does not occur as a real UUID.
uuid_ns_dns()
Constant designating the DNS namespace for UUIDs.
uuid_ns_url()
Constant designating the URL namespace for UUIDs.
uuid_ns_oid()
Constant designating the ISO object identifier (OID) namespace for
UUIDs. (This pertains to ASN.1 OIDs, unrelated to the OIDs used in
PostgreSQL.)
uuid_ns_x500()
Constant designating the X.500 distinguished name (DN) namespace for
UUIDs.

15
contrib/uuid-ossp/uninstall_uuid-ossp.sql Normal file
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@ -0,0 +1,15 @@
/* $PostgreSQL: pgsql/contrib/uuid-ossp/uninstall_uuid-ossp.sql,v 1.1 2007/04/21 17:26:17 petere Exp $ */
SET search_path = public;
DROP FUNCTION uuid_nil();
DROP FUNCTION uuid_ns_dns();
DROP FUNCTION uuid_ns_url();
DROP FUNCTION uuid_ns_oid();
DROP FUNCTION uuid_ns_x500();
DROP FUNCTION uuid_generate_v1();
DROP FUNCTION uuid_generate_v1mc();
DROP FUNCTION uuid_generate_v3(namespace uuid, name text);
DROP FUNCTION uuid_generate_v4();
DROP FUNCTION uuid_generate_v5(namespace uuid, name text);

198
contrib/uuid-ossp/uuid-ossp.c Normal file
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@ -0,0 +1,198 @@
/*-------------------------------------------------------------------------
*
* UUID generation functions using the OSSP UUID library
*
* Copyright (c) 2007 PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/contrib/uuid-ossp/uuid-ossp.c,v 1.1 2007/04/21 17:26:17 petere Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "fmgr.h"
#include "utils/builtins.h"
#include "utils/uuid.h"
#include <ossp/uuid.h>
/* better both be 16 */
#if (UUID_LEN != UUID_LEN_BIN)
#error UUID length mismatch
#endif
PG_MODULE_MAGIC;
Datum uuid_nil(PG_FUNCTION_ARGS);
Datum uuid_ns_dns(PG_FUNCTION_ARGS);
Datum uuid_ns_url(PG_FUNCTION_ARGS);
Datum uuid_ns_oid(PG_FUNCTION_ARGS);
Datum uuid_ns_x500(PG_FUNCTION_ARGS);
Datum uuid_generate_v1(PG_FUNCTION_ARGS);
Datum uuid_generate_v1mc(PG_FUNCTION_ARGS);
Datum uuid_generate_v3(PG_FUNCTION_ARGS);
Datum uuid_generate_v4(PG_FUNCTION_ARGS);
Datum uuid_generate_v5(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(uuid_nil);
PG_FUNCTION_INFO_V1(uuid_ns_dns);
PG_FUNCTION_INFO_V1(uuid_ns_url);
PG_FUNCTION_INFO_V1(uuid_ns_oid);
PG_FUNCTION_INFO_V1(uuid_ns_x500);
PG_FUNCTION_INFO_V1(uuid_generate_v1);
PG_FUNCTION_INFO_V1(uuid_generate_v1mc);
PG_FUNCTION_INFO_V1(uuid_generate_v3);
PG_FUNCTION_INFO_V1(uuid_generate_v4);
PG_FUNCTION_INFO_V1(uuid_generate_v5);
static char *
uuid_to_string(const uuid_t *uuid)
{
char *buf = palloc(UUID_LEN_STR + 1);
void *ptr = buf;
size_t len = UUID_LEN_STR + 1;
uuid_export(uuid, UUID_FMT_STR, &ptr, &len);
return buf;
}
static void
string_to_uuid(const char *str, uuid_t *uuid)
{
uuid_import(uuid, UUID_FMT_STR, str, UUID_LEN_STR + 1);
}
static Datum
special_uuid_value(const char *name)
{
uuid_t *uuid;
char *str;
uuid_create(&uuid);
uuid_load(uuid, name);
str = uuid_to_string(uuid);
uuid_destroy(uuid);
return DirectFunctionCall1(uuid_in, CStringGetDatum(str));
}
Datum
uuid_nil(PG_FUNCTION_ARGS)
{
return special_uuid_value("nil");
}
Datum
uuid_ns_dns(PG_FUNCTION_ARGS)
{
return special_uuid_value("ns:DNS");
}
Datum
uuid_ns_url(PG_FUNCTION_ARGS)
{
return special_uuid_value("ns:URL");
}
Datum
uuid_ns_oid(PG_FUNCTION_ARGS)
{
return special_uuid_value("ns:OID");
}
Datum
uuid_ns_x500(PG_FUNCTION_ARGS)
{
return special_uuid_value("ns:X500");
}
static Datum
uuid_generate_internal(int mode, const uuid_t *ns, const char *name)
{
uuid_t *uuid;
char *str;
uuid_create(&uuid);
uuid_make(uuid, mode, ns, name);
str = uuid_to_string(uuid);
uuid_destroy(uuid);
return DirectFunctionCall1(uuid_in, CStringGetDatum(str));
}
Datum
uuid_generate_v1(PG_FUNCTION_ARGS)
{
return uuid_generate_internal(UUID_MAKE_V1, NULL, NULL);
}
Datum
uuid_generate_v1mc(PG_FUNCTION_ARGS)
{
return uuid_generate_internal(UUID_MAKE_V1 | UUID_MAKE_MC, NULL, NULL);
}
static Datum
uuid_generate_v35_internal(int mode, pg_uuid_t *ns, text *name)
{
uuid_t *ns_uuid;
Datum result;
uuid_create(&ns_uuid);
string_to_uuid(DatumGetCString(DirectFunctionCall1(uuid_out, UUIDPGetDatum(ns))),
ns_uuid);
result = uuid_generate_internal(mode,
ns_uuid,
DatumGetCString(DirectFunctionCall1(textout, PointerGetDatum(name))));
uuid_destroy(ns_uuid);
return result;
}
Datum
uuid_generate_v3(PG_FUNCTION_ARGS)
{
pg_uuid_t *ns = PG_GETARG_UUID_P(0);
text *name = PG_GETARG_TEXT_P(1);
return uuid_generate_v35_internal(UUID_MAKE_V3, ns, name);
}
Datum
uuid_generate_v4(PG_FUNCTION_ARGS)
{
return uuid_generate_internal(UUID_MAKE_V4, NULL, NULL);
}
Datum
uuid_generate_v5(PG_FUNCTION_ARGS)
{
pg_uuid_t *ns = PG_GETARG_UUID_P(0);
text *name = PG_GETARG_TEXT_P(1);
return uuid_generate_v35_internal(UUID_MAKE_V5, ns, name);
}

15
contrib/uuid-ossp/uuid-ossp.sql.in Normal file
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@ -0,0 +1,15 @@
/* $PostgreSQL: pgsql/contrib/uuid-ossp/uuid-ossp.sql.in,v 1.1 2007/04/21 17:26:17 petere Exp $ */
SET search_path = public;
CREATE FUNCTION uuid_nil() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_nil';
CREATE FUNCTION uuid_ns_dns() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_ns_dns';
CREATE FUNCTION uuid_ns_url() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_ns_url';
CREATE FUNCTION uuid_ns_oid() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_ns_oid';
CREATE FUNCTION uuid_ns_x500() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_ns_x500';
CREATE FUNCTION uuid_generate_v1() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_generate_v1';
CREATE FUNCTION uuid_generate_v1mc() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_generate_v1mc';
CREATE FUNCTION uuid_generate_v3(namespace uuid, name text) RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_generate_v3';
CREATE FUNCTION uuid_generate_v4() RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_generate_v4';
CREATE FUNCTION uuid_generate_v5(namespace uuid, name text) RETURNS uuid IMMUTABLE STRICT LANGUAGE C AS 'MODULE_PATHNAME', 'uuid_generate_v5';

9
doc/src/sgml/datatype.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.197 2007/04/20 21:51:46 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.198 2007/04/21 17:26:17 petere Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
@ -3246,6 +3246,13 @@ a0eebc999c0b4ef8bb6d6bb9bd380a11
</programlisting>
Output is always in the standard form.
</para>
<para>
To generate UUIDs, the contrib module <literal>uuid-ossp</literal>
provides functions that implement the standard algorithms.
Alternatively, UUIDs could be generated by client applications or
other libraries invoked through a server-side function.
</para>
</sect1>
<sect1 id="datatype-xml">

15
doc/src/sgml/installation.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.287 2007/04/21 15:30:28 adunstan Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.288 2007/04/21 17:26:17 petere Exp $ -->
<chapter id="installation">
<title><![%standalone-include[<productname>PostgreSQL</>]]>
@ -910,6 +910,19 @@ su - postgres
</listitem>
</varlistentry>
<varlistentry>
<term><option>--with-ossp-uuid</option></term>
<listitem>
<para>
Build with the <ulink
url="http://www.ossp.org/pkg/lib/uuid/">OSSP UUID
library</ulink>. This is necessary for the contrib module
<literal>uuid-ossp</literal> which provides functions to
generate UUIDs.<indexterm><primary>UUID</primary></indexterm>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--with-libxml</option></term>
<listitem>

3
src/Makefile.global.in
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@ -1,5 +1,5 @@
# -*-makefile-*-
# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.235 2007/04/15 12:48:23 adunstan Exp $
# $PostgreSQL: pgsql/src/Makefile.global.in,v 1.236 2007/04/21 17:26:18 petere Exp $
#------------------------------------------------------------------------------
# All PostgreSQL makefiles include this file and use the variables it sets,
@ -152,6 +152,7 @@ with_perl = @with_perl@
with_python = @with_python@
with_tcl = @with_tcl@
with_openssl = @with_openssl@
with_ossp_uuid = @with_ossp_uuid@
with_libxml = @with_libxml@
with_libxslt = @with_libxslt@
with_zlib = @with_zlib@