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I investigated carefully POSTGRES data base (in idea to use it for

Browse Source 
our internal IP routing data base, and because  I have participated
in Ingres development here in Russia in RUBIN/DEMOS project -
through it was not freeware work - and it was very interesting for
me too see such good freeware data base as PostgreSQL), and I
modified 'ipaddr' data type library in accordance to our requests
and to allow SQL do indexing over ipaddr objects.

You can read description at 'http://relcom.EU.net/ipaddr.html' and
get sources at 'http://relcom.EU.net/ip_class.tar.gz'. It contains
sources, sql scripts for incorporating new data type into postgres
(including ipaddr_ops operator class incorporation) and 20,000
records based data test for the indexing.

I am not sure if it's proper mail list for this information, and
if it's interesting for anyone except me to get full-functional
ipaddress class. I am ready to make all modifications, bug fixing
and documentation for this data class if it's nessesary for it's
contribution to the Postgres data base.

Anyway, all my work was based at original 'ip&mac data type'
contribution, written by Tom Ivar Helbekkmo.

Be free to write me any questions or requests about this work.
==============================================================

Aleksei Roudnev, Network Operations Center, Relcom, Moscow (+7 095)
194-19-95 (Network Operations Center Hot Line),(+7 095) 239-10-10,
N 13729 (pager) (+7 095) 196-72-12 (Support), (+7 095) 194-33-28
(Fax)
This commit is contained in:
Bruce Momjian 1998-06-16 04:34:30 +00:00
parent 583891833f
commit 92da1c3a6a
5 changed files with 620 additions and 95 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
contrib/ip_and_mac/Makefile
View File

@ -1,37 +1,27 @@
#
# PostgreSQL types for IP and MAC addresses
#
# $Id: Makefile,v 1.3 1998/04/22 04:14:11 scrappy Exp $
# $Id: Makefile,v 1.4 1998/06/16 04:34:29 momjian Exp $
SRCDIR= ../../src
all: ip.so mac.so
include $(SRCDIR)/Makefile.global
ip.so: ip.o
ld -Bshareable -o ip.so ip.o
CONTRIBDIR=$(LIBDIR)/modules
ip.o: ip.c
cc -g -O -fPIC -I/usr/local/pgsql/include -c ip.c
CFLAGS+= $(CFLAGS_SL) -I$(SRCDIR)/include
mac.so: mac.o
ld -Bshareable -o mac.so mac.o
ifdef REFINT_VERBOSE
CFLAGS+= -DREFINT_VERBOSE
endif
mac.o: mac.c mac.h
cc -g -O -fPIC -I/usr/local/pgsql/include -c mac.c
TARGETS= ip$(DLSUFFIX) ip.sql mac$(DLSUFFIX) mac.sql
install: ip.so mac.so
install -c ip.so mac.so /usr/local/pgsql/modules
CLEANFILES+= $(TARGETS)
all:: $(TARGETS)
install:: all $(CONTRIBDIR)
for f in *$(DLSUFFIX); do $(INSTALL) -c $$f $(CONTRIBDIR)/$$f; done
$(CONTRIBDIR):
mkdir -p $(CONTRIBDIR)
%.sql: %.sql.in
rm -f $@; \
C=`pwd`; \
sed -e "s:_OBJWD_:$(CONTRIBDIR):g" \
-e "s:_DLSUFFIX_:$(DLSUFFIX):g" < $< > $@
clean:
rm -f $(TARGETS) *.o
clean:
rm -f *.o *.so *.b
#
# eof
#

83
contrib/ip_and_mac/README
View File

@ -1,56 +1,43 @@
PostgreSQL type extensions for IP and MAC addresses.
---------------------------------------------------
$Id: README,v 1.2 1998/02/14 17:58:03 scrappy Exp $
This directory contain 2 new classes - macaddr to store mac addresses
written by (Bergen, Norway, 1998-01-31, Tom Ivar Helbekkmo
(tih@Hamartun.Priv.NO)), and ipaddr type and ipaddr_ops operator class,
rewritten by me (alex@relcom.EU.net, Aleksei Roudnev, Moscow, Russia,
25.05.98) and written first by Bergen.
I needed to record IP and MAC level ethernet addresses in a data
base, and I really didn't want to store them as plain strings, with
no enforced error checking, so I put together the accompanying code
as my first experiment with adding a data type to PostgreSQL. I
then thought that this might be useful to others, both directly and
as a very simple example of how to do this sort of thing, so here
it is, in the hope that it will be useful.
To see the description of macaddr type, read README.ORIG file.
To see the description of ipaddr type, read ipaddr.html file.
^^^^^^^^^^^
IP addresses are implemented as a 6 byte struct (this may be 1 byte
more than is useful, but I figured that since it has to be at least 5,
it might as well be an even number of bytes) that contains the four
byte address and a mask width. The external representation of an IP
address looks like '158.37.96.15/32' (or just '158.37.96.15', which is
understood to mean the same thing). This address happens to be part
of a subnet where I work; '158.37.96.0/24', which itself is a part of
the larger subnet allocated to our site, which is '158.37.96.0/21',
which again, if you go by the old book, is part of the class "B" net
called '158.37.0.0/16'.
This ipaddr type differ slightly from the original one. First, if you
input '193.124.23.0' it sets /24 prefix instead of /32 (this is in
accordance to CISCO's notification and our internal data bases and
records); if you input '0.0.0.0' it's '0.0.0.0/0' (default) but not NULL
or NOADDR value.
Input and output functions are supplied, along with the "normal" <,
<=, =, >=, > and <> operators, which all do what you expect. In
addition, there is a function to check whether a given address is a
member of a given subnet: ipaddr_in_net(addr, net), and functions to
return the netmask and the broadcast address of a given network:
ipaddr_mask(net) and ipaddr_bcast(net).
Then, you can store ADDRESS/PREFIX pair, even if ADDRESS is not the
subnet address (for example, you can store interface address and mask at
the single attribute). This allow us to determine, for example, which
interfaces/routers are accessible by connected network for our interface
(select * from database where '193.124.23.4' @ interface_address);
MAC level ethernet addresses are implemented as a 6 byte struct that
contains the address as unsigned chars. Several input forms are
accepted; the following are all the same address: '08002b:010203',
'08002b-010203', '0800.2b01.0203', '08-00-2b-01-02-03' and
'08:00:2b:01:02:03'. Upper and lower case is accepted for the digits
'a' through 'f'. Output is always in the latter of the given forms.
Then, it have been written a few new functions and a few operators
(addr1 @ addr - TRUE if addr1 is the part of subnet addr2);
'ipaddr_print' function allow you to convert address to any form you
want; and so on.
As with IP addresses, input and output functions are supplied as well
as the "normal" operators, which do what you expect. As an extra
feature, a function macaddr_manuf() is defined, which returns the name
of the manufacturer as a string. This is currently held in a
hard-coded struct internal to the C module -- it might be smarter to
put this information into an actual data base table, and look up the
manufacturer there. (Another TODO, for both new data types, is to
interface them to indices. If anyone can explain this to me in a way
that is easier to understand than the current documentation, I would
be most grateful!)
And then, I add ipi.sql setup script and test1.sql + test2.sql test
scripts to allow and test indexing by this new class.
I don't know what changes are needed to the Makefile for other systems
than the one I'm running (NetBSD 1.3), but anyway: to install on a BSD
system: fix the path names in the SQL files and the Makefile if you
need to, then make, make install, slurp the SQL files into psql or
whatever, and you're off. Enjoy!
This ipaddr type/opclass are used for our internal IP ROUTING and
ACCOUNTING data base, and I hope it shpuld be usefull for more people.
Bergen, Norway, 1998-01-31, Tom Ivar Helbekkmo (tih@Hamartun.Priv.NO).
For those who like crazy tasks, I propose to realise 'RTREE' indexing
method to allow effectively use '@' operation for the binding statistic
records to the customers etc networks. Note 'ipaddr' type can be written
as 'start,end' coordination pair and it's possible to define all '<<,
&<, @@, etc graphical operators over this type.
25.05.1998, Aleksei Roudnev, alex@relcom.EU.net, Relcom, Moscow, Russia. /+7-095-194-1995.
==========================================================================================

56
contrib/ip_and_mac/README.ORIG Normal file
View File

@ -0,0 +1,56 @@
PostgreSQL type extensions for IP and MAC addresses.
---------------------------------------------------
$Id: README.ORIG,v 1.1 1998/06/16 04:34:29 momjian Exp $
I needed to record IP and MAC level ethernet addresses in a data
base, and I really didn't want to store them as plain strings, with
no enforced error checking, so I put together the accompanying code
as my first experiment with adding a data type to PostgreSQL. I
then thought that this might be useful to others, both directly and
as a very simple example of how to do this sort of thing, so here
it is, in the hope that it will be useful.
IP addresses are implemented as a 6 byte struct (this may be 1 byte
more than is useful, but I figured that since it has to be at least 5,
it might as well be an even number of bytes) that contains the four
byte address and a mask width. The external representation of an IP
address looks like '158.37.96.15/32' (or just '158.37.96.15', which is
understood to mean the same thing). This address happens to be part
of a subnet where I work; '158.37.96.0/24', which itself is a part of
the larger subnet allocated to our site, which is '158.37.96.0/21',
which again, if you go by the old book, is part of the class "B" net
called '158.37.0.0/16'.
Input and output functions are supplied, along with the "normal" <,
<=, =, >=, > and <> operators, which all do what you expect. In
addition, there is a function to check whether a given address is a
member of a given subnet: ipaddr_in_net(addr, net), and functions to
return the netmask and the broadcast address of a given network:
ipaddr_mask(net) and ipaddr_bcast(net).
MAC level ethernet addresses are implemented as a 6 byte struct that
contains the address as unsigned chars. Several input forms are
accepted; the following are all the same address: '08002b:010203',
'08002b-010203', '0800.2b01.0203', '08-00-2b-01-02-03' and
'08:00:2b:01:02:03'. Upper and lower case is accepted for the digits
'a' through 'f'. Output is always in the latter of the given forms.
As with IP addresses, input and output functions are supplied as well
as the "normal" operators, which do what you expect. As an extra
feature, a function macaddr_manuf() is defined, which returns the name
of the manufacturer as a string. This is currently held in a
hard-coded struct internal to the C module -- it might be smarter to
put this information into an actual data base table, and look up the
manufacturer there. (Another TODO, for both new data types, is to
interface them to indices. If anyone can explain this to me in a way
that is easier to understand than the current documentation, I would
be most grateful!)
I don't know what changes are needed to the Makefile for other systems
than the one I'm running (NetBSD 1.3), but anyway: to install on a BSD
system: fix the path names in the SQL files and the Makefile if you
need to, then make, make install, slurp the SQL files into psql or
whatever, and you're off. Enjoy!
Bergen, Norway, 1998-01-31, Tom Ivar Helbekkmo (tih@Hamartun.Priv.NO).

231
contrib/ip_and_mac/ip.c
View File

@ -1,7 +1,7 @@
/*
* PostgreSQL type definitions for IP addresses.
*
* $Id: ip.c,v 1.3 1998/02/26 04:27:37 momjian Exp $
* $Id: ip.c,v 1.4 1998/06/16 04:34:29 momjian Exp $
*/
#include <stdio.h>
@ -81,10 +81,18 @@ ipaddr_in(char *str)
elog(ERROR, "ipaddr_in: error in parsing \"%s\"", str);
return (NULL);
}
if ( count == 3 ) {
d = 0;
count = 4;
};
if (count == 4)
{
w = 32;
if ( a >= 192 && a < 224 && d == 0 ) w = 24;
if ( a >= 128 && a < 192 && d == 0 && c == 0 ) w = 16;
if ( a > 0 && a < 128 && c == 0 && b == 0 && a < 128 ) w = 8;
if ( a == 0 && b == 0 && c == 0 && d == 0 ) w = 0;
};
if ((a < 0) || (a > 255) || (b < 0) || (b > 255) ||
(c < 0) || (c > 255) || (d < 0) || (d > 255) ||
(w < 0) || (w > 32))
@ -95,13 +103,12 @@ ipaddr_in(char *str)
}
else
{
a = b = c = d = w = 0; /* special case for missing address */
a = b = c = d = w = 255; /* special case for missing address */
}
result = (ipaddr *) palloc(sizeof(ipaddr));
result->address = (uint32) ((a << 24) | (b << 16) | (c << 8) | d);
result->address &= build_mask(w);
result->width = w;
return (result);
@ -116,27 +123,30 @@ char *
ipaddr_out(ipaddr * addr)
{
char *result;
int a, b, c, d, w;
if (addr == NULL)
return (NULL);
result = (char *) palloc(32);
if (addr->address > 0)
w = addr->width;
a = (addr->address >> 24) & 0xff;
b = (addr->address >> 16) & 0xff;
c = (addr->address >> 8) & 0xff;
d = (addr->address >> 0) & 0xff;
/* Check by missing address (w > 32 ) */
if ( w >= 0 && w <= 32 )
{
if (addr->width == 32)
sprintf(result, "%d.%d.%d.%d",
(addr->address >> 24) & 0xff,
(addr->address >> 16) & 0xff,
(addr->address >> 8) & 0xff,
addr->address & 0xff);
/* In case of NATURAL network don't output the prefix */
if ( (a == 0 && b == 0 && c == 0 && d == 0 && w == 0 ) ||
(a < 128 && b == 0 && c == 0 && d == 0 && w == 8 ) ||
(a < 192 && c == 0 && d == 0 && w == 16 ) ||
(a < 224 && d == 0 && w == 24 ) ||
( d != 0 ) ) w = -1;
if (w == -1 )
sprintf(result, "%d.%d.%d.%d",a,b,c,d);
else
sprintf(result, "%d.%d.%d.%d/%d",
(addr->address >> 24) & 0xff,
(addr->address >> 16) & 0xff,
(addr->address >> 8) & 0xff,
addr->address & 0xff,
addr->width);
sprintf(result, "%d.%d.%d.%d/%d",a,b,c,d,w);
}
else
{
@ -145,6 +155,67 @@ ipaddr_out(ipaddr * addr)
return (result);
}
/*
* Print ipaddr by format
* %A - address
* %M - maska
* %P - prefix
* %B - negated maska
*/
# define TXT_LEN_0 4
text *
ipaddr_print(ipaddr * addr, text *fmt)
{
text *result;
char *p, *op;
uint32 aaa;
int a, b, c, d;
if (addr == NULL)
return (NULL);
result = (text *) palloc( sizeof(text) + 64 );
/* Check by missing address (w > 32 ) */
for ( p = fmt->vl_dat, op = result->vl_dat; *p && (p - fmt->vl_dat) < (fmt->vl_len - TXT_LEN_0) && (op - result->vl_dat) < 48; p++) {
if ( *p != '%' ) {
*op++ = *p;
continue;
};
p++;
if ( *p == 'A' )
{
aaa = addr->address;
goto pta;
};
if ( *p == 'M' ) {
aaa = build_mask(addr->width);
goto pta;
}
if ( *p == 'B' ) {
aaa = build_mask(32 - addr->width) >> addr->width;
goto pta;
}
if ( *p == 'P' ) {
sprintf(op,"%d",addr->width);
while ( *op) op++;
continue;
};
*op++ = *p;
continue;
pta:
a = (aaa >> 24) & 0xff;
b = (aaa >> 16) & 0xff;
c = (aaa >> 8) & 0xff;
d = (aaa >> 0) & 0xff;
sprintf(op, "%d.%d.%d.%d",a,b,c,d);
while ( *op ) op++;
continue;
};
*op = 0;
result->vl_len = (op - result->vl_dat) + TXT_LEN_0;
return (result);
}
/*
* Boolean tests for magnitude.
*/
@ -152,36 +223,42 @@ ipaddr_out(ipaddr * addr)
bool
ipaddr_lt(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width < a2->width);
return (a1->address < a2->address);
};
bool
ipaddr_le(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width <= a2->width);
return (a1->address <= a2->address);
};
bool
ipaddr_eq(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width == a2->width);
return (a1->address == a2->address);
};
bool
ipaddr_ge(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width >= a2->width);
return (a1->address >= a2->address);
};
bool
ipaddr_gt(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width > a2->width);
return (a1->address > a2->address);
};
bool
ipaddr_ne(ipaddr * a1, ipaddr * a2)
{
if ( a1->address == a2->address ) return(a1->width != a2->width);
return (a1->address != a2->address);
};
@ -197,7 +274,42 @@ ipaddr_cmp(ipaddr * a1, ipaddr * a2)
else if (a1->address > a2->address)
return 1;
else
return 0;
{
if (a1->width < a2->width)
return -1;
else if (a1->width > a2->width)
return 1;
}
return 0;
}
/*
* The number of hosts in the network
*/
int4
ipaddr_len(ipaddr * a)
{
if ( a->width > 32 || a->width < 0 ) return(0);
return(1 << (32 - a->width));
}
/*
* The number of network bits
*/
int4
ipaddr_pref(ipaddr * a)
{
if ( a->width > 32 || a->width < 0 ) return(0);
return(a->width);
}
/*
* The host addr as an integer
*/
int4
ipaddr_integer(ipaddr * a)
{
return(a->address);
}
/*
@ -219,6 +331,23 @@ ipaddr_in_net(ipaddr * a1, ipaddr * a2)
return FALSE;
}
/*
* Test whether an address is the network or a host in the network:
*/
bool
ipaddr_is_net(ipaddr * a)
{
uint32 maskbits;
if (a->width == 32)
return FALSE;
maskbits = build_mask(a->width);
if ( (a->address & maskbits) == a->address )
return TRUE;
return FALSE;
}
/*
* Pick out just the mask of a network:
*/
@ -252,6 +381,68 @@ ipaddr_bcast(ipaddr * a)
return result;
}
/*
* Return the base network of the address/network:
*/
ipaddr *
ipaddr_net(ipaddr * a)
{
ipaddr *result;
result = (ipaddr *) palloc(sizeof(ipaddr));
result->address = a->address;
result->address &= build_mask(a->width);
result->width = a->width;
return result;
}
/*
* Compose ipaddr from ADDR and PREFIX
*/
ipaddr *
ipaddr_compose(int4 addr, int4 pref)
{
ipaddr *result;
result = (ipaddr *) palloc(sizeof(ipaddr));
if ( pref < 0 || pref > 32 ) {
pref = 255;
addr = 0;
};
result->address = addr;
result->width = pref;
return result;
}
/*
* Plus and Minus operators
*/
ipaddr *
ipaddr_plus(ipaddr * a, int4 i)
{
ipaddr *result;
result = (ipaddr *) palloc(sizeof(ipaddr));
result->address = a->address + i;
result->width = a->width;
return result;
}
ipaddr *
ipaddr_minus(ipaddr * a, int4 i)
{
ipaddr *result;
result = (ipaddr *) palloc(sizeof(ipaddr));
result->address = a->address - i;
result->width = a->width;
return result;
}
/*
* eof
*/

301
contrib/ip_and_mac/ip.sql Normal file
View File

@ -0,0 +1,301 @@
--
-- PostgreSQL code for IP addresses.
--
-- $Id: ip.sql,v 1.4 1998/06/16 04:34:30 momjian Exp $
-- Invoced from 1998/02/14 17:58:04 scrappy
--
-- New - INPUT/OUTPUT, functions, indexing by btree, test.
-- PART # 1 - ip.sql - load new type, functions and operators.
-- Then you should execute ipi.sql - add ipaddr_ops class to allow indexing.
load '/usr/local/pgsql/modules/ip.so';
--
-- Input and output functions and the type itself:
-- Note - we input 193.124.23.1 as /32, and 193.124.23.0 as /24.
-- We output /24 network withouth /24 suffix, and /32 hosts wothouth suffixes
-- if it is not '0' address of /24 network.
-- Just the same, we threat 0.0.0.0 as 0.0.0.0/0 == DEFAULT.
--
create function ipaddr_in(opaque)
returns opaque
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_out(opaque)
returns opaque
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create type ipaddr (
internallength = 6,
externallength = variable,
input = ipaddr_in,
output = ipaddr_out
);
--
-- Print address by format
-- %A - address
-- %P - /Pref
-- %M - maska
-- %B - reversed maska
drop function ipaddr_print;
create function ipaddr_print(ipaddr, text)
returns text
as '/usr/local/pgsql/modules/ip.so'
language 'c';
);
--
-- The various boolean tests:
-- In case if addresseas are equal, we compare prefix length
-- It means 193.124.23.0/24 < 193.124.23.0/32
--
create function ipaddr_lt(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_le(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_eq(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_ge(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_gt(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_ne(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Test if a1 is in net a2
-- Return TRUE if a1 is IN a2 subnet or if a1 == a2
--
create function ipaddr_in_net(ipaddr, ipaddr)
returns bool
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return the network from the host/network address. This means
-- 193.124.23.4/24 -> 193.124.23.0/24.
-- This allow to use interface address (with the real netmask) to create
-- network, and to link interfaces and addresses belongs to the same network.
--
create function ipaddr_net(ipaddr)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return TRUE if addr describe NETWORK, not host in the network
-- It's equivalent to ipaddr_net(a) == a
--
create function ipaddr_is_net(ipaddr)
returns boolean
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return the number of the hosts in the network
--
create function ipaddr_len(ipaddr)
returns int4
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return the prefix length of the network
--
create function ipaddr_pref(ipaddr)
returns int4
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Convert network into the integer.
-- Can be used for 'compose' function
--
create function ipaddr_integer(ipaddr)
returns int4
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Compose ipaddr from the ADDRESS and PREF
-- ipaddr_compose(ipaddr_integer(a),ipaddr_pref(a)) == a
--
create function ipaddr_compose(int4,int4)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return MASK for the network
--
create function ipaddr_mask(ipaddr)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Return BROADCAST address for the network
--
create function ipaddr_bcast(ipaddr)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Compare 2 addresses. First, compare addresses, then, compare prefixes (if the addresses
-- are the same).
--
create function ipaddr_cmp(ipaddr,ipaddr)
returns int4
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Plus and Minus operators
--
create function ipaddr_plus(ipaddr,int4)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
create function ipaddr_minus(ipaddr,int4)
returns ipaddr
as '/usr/local/pgsql/modules/ip.so'
language 'c';
--
-- Now the operators. Note how some of the parameters to some
-- of the 'create operator' commands are commented out. This
-- is because they reference as yet undefined operators, and
-- will be implicitly defined when those are, further down.
--
-- drop operator < ( ipaddr, ipaddr);
create operator < (
leftarg = ipaddr,
rightarg = ipaddr,
-- negator = >=,
procedure = ipaddr_lt,
restrict = intltsel,
join = intltjoinsel
);
-- drop operator <= (ipaddr,ipaddr);
create operator <= (
leftarg = ipaddr,
rightarg = ipaddr,
-- negator = >,
procedure = ipaddr_le,
restrict = intltsel,
join = intltjoinsel
);
-- drop operator = (ipaddr,ipaddr);
create operator = (
leftarg = ipaddr,
rightarg = ipaddr,
commutator = =,
-- negator = <>,
restrict = eqsel,
join = eqjoinsel,
procedure = ipaddr_eq
);
-- drop operator >= (ipaddr,ipaddr);
create operator >= (
leftarg = ipaddr,
rightarg = ipaddr,
negator = <,
procedure = ipaddr_ge,
restrict = intgtsel,
join = intgtjoinsel
);
-- drop operator > (ipaddr,ipaddr);
create operator > (
leftarg = ipaddr,
rightarg = ipaddr,
negator = <=,
procedure = ipaddr_gt,
restrict = intgtsel,
join = intgtjoinsel
);
-- drop operator <> (ipaddr,ipaddr);
create operator <> (
leftarg = ipaddr,
rightarg = ipaddr,
negator = =,
procedure = ipaddr_ne,
restrict = neqsel,
join = neqjoinsel
);
create operator @ (
leftarg = ipaddr,
rightarg = ipaddr,
procedure = ipaddr_in_net
);
create operator + (
leftarg = ipaddr,
rightarg = int4,
procedure = ipaddr_plus
);
create operator - (
leftarg = ipaddr,
rightarg = int4,
procedure = ipaddr_minus
);
-- *****************************************************************************************
-- * For now, you have: input/output (remember, '193.124.23.0' means /24 network, *
-- * '193.124.23.1' means /32 host) *
-- * <, <=, = <>, >=, > relational operations; host @ net (host is the part of the net) op *
-- * varchar ipaddr_print(addr, '%A/%P %M %B') - print by pattern function *
-- * ipaddr ipaddr_mask(a),ipaddr_bcast(a),ipaddr_net(a) functions (mask,bcast, start addr)*
-- * int4 ipaddr_len(a) - lenght of subnet; ipaddr_pref(a) - prefix length, *
-- * int4 ipaddr_integer(a) - integer value; ipaddr ipaddr_compose(integer_addr,pref_len) *
-- * compose ipaddr from addr and mask *
-- * '+' and '-' operators (ipaddr = ipaddr + integer),(ipaddr = ipaddr - integer) ops *
-- *****************************************************************************************
-- * R E A D T H I S T E X T B E F O R E E X I T I N G : *
-- * Now you should execute ipi.sql to allow BTREE indexing on this class. *
-- *****************************************************************************************
-- eof