1998-10-03 07:41:01 +02:00
|
|
|
/*
|
|
|
|
* PostgreSQL type definitions for MAC addresses.
|
|
|
|
*
|
2002-03-09 18:35:37 +01:00
|
|
|
* $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.22 2002/03/09 17:35:35 tgl Exp $
|
1998-10-03 07:41:01 +02:00
|
|
|
*/
|
|
|
|
|
1999-07-16 01:04:24 +02:00
|
|
|
#include "postgres.h"
|
2000-07-06 07:48:31 +02:00
|
|
|
|
2000-12-09 00:57:03 +01:00
|
|
|
#include "access/hash.h"
|
1999-07-16 01:04:24 +02:00
|
|
|
#include "utils/builtins.h"
|
2000-08-04 01:07:51 +02:00
|
|
|
#include "utils/inet.h"
|
2000-07-06 07:48:31 +02:00
|
|
|
|
1998-10-03 07:41:01 +02:00
|
|
|
/*
|
|
|
|
* Utility macros used for sorting and comparing:
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define hibits(addr) \
|
2000-08-04 01:07:51 +02:00
|
|
|
((unsigned long)(((addr)->a<<16)|((addr)->b<<8)|((addr)->c)))
|
1998-10-03 07:41:01 +02:00
|
|
|
|
|
|
|
#define lobits(addr) \
|
2000-08-04 01:07:51 +02:00
|
|
|
((unsigned long)(((addr)->d<<16)|((addr)->e<<8)|((addr)->f)))
|
1998-10-03 07:41:01 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* MAC address reader. Accepts several common notations.
|
|
|
|
*/
|
2000-08-23 08:04:49 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_in(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2000-08-04 01:07:51 +02:00
|
|
|
char *str = PG_GETARG_CSTRING(0);
|
2001-08-21 23:23:21 +02:00
|
|
|
macaddr *result;
|
1998-10-03 07:41:01 +02:00
|
|
|
int a,
|
|
|
|
b,
|
|
|
|
c,
|
|
|
|
d,
|
|
|
|
e,
|
|
|
|
f;
|
|
|
|
int count;
|
|
|
|
|
2001-08-21 23:23:21 +02:00
|
|
|
count = sscanf(str, "%x:%x:%x:%x:%x:%x", &a, &b, &c, &d, &e, &f);
|
|
|
|
if (count != 6)
|
|
|
|
count = sscanf(str, "%x-%x-%x-%x-%x-%x", &a, &b, &c, &d, &e, &f);
|
|
|
|
if (count != 6)
|
|
|
|
count = sscanf(str, "%2x%2x%2x:%2x%2x%2x", &a, &b, &c, &d, &e, &f);
|
|
|
|
if (count != 6)
|
|
|
|
count = sscanf(str, "%2x%2x%2x-%2x%2x%2x", &a, &b, &c, &d, &e, &f);
|
|
|
|
if (count != 6)
|
|
|
|
count = sscanf(str, "%2x%2x.%2x%2x.%2x%2x", &a, &b, &c, &d, &e, &f);
|
|
|
|
|
|
|
|
if (count != 6)
|
|
|
|
elog(ERROR, "macaddr_in: error in parsing \"%s\"", str);
|
|
|
|
|
|
|
|
if ((a < 0) || (a > 255) || (b < 0) || (b > 255) ||
|
|
|
|
(c < 0) || (c > 255) || (d < 0) || (d > 255) ||
|
|
|
|
(e < 0) || (e > 255) || (f < 0) || (f > 255))
|
|
|
|
elog(ERROR, "macaddr_in: illegal address \"%s\"", str);
|
1998-10-03 07:41:01 +02:00
|
|
|
|
|
|
|
result = (macaddr *) palloc(sizeof(macaddr));
|
|
|
|
|
|
|
|
result->a = a;
|
|
|
|
result->b = b;
|
|
|
|
result->c = c;
|
|
|
|
result->d = d;
|
|
|
|
result->e = e;
|
|
|
|
result->f = f;
|
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
PG_RETURN_MACADDR_P(result);
|
1998-10-03 07:41:01 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* MAC address output function. Fixed format.
|
|
|
|
*/
|
2000-08-23 08:04:49 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_out(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *addr = PG_GETARG_MACADDR_P(0);
|
1998-10-03 07:41:01 +02:00
|
|
|
char *result;
|
|
|
|
|
|
|
|
result = (char *) palloc(32);
|
|
|
|
|
2001-08-21 23:23:21 +02:00
|
|
|
sprintf(result, "%02x:%02x:%02x:%02x:%02x:%02x",
|
|
|
|
addr->a, addr->b, addr->c, addr->d, addr->e, addr->f);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_CSTRING(result);
|
1998-10-03 07:41:01 +02:00
|
|
|
}
|
|
|
|
|
2001-08-21 23:23:21 +02:00
|
|
|
/*
|
2000-08-23 08:04:49 +02:00
|
|
|
* Convert macaddr to text data type.
|
|
|
|
*/
|
|
|
|
|
|
|
|
Datum
|
|
|
|
macaddr_text(PG_FUNCTION_ARGS)
|
|
|
|
{
|
|
|
|
/* Input is a macaddr, but may as well leave it in Datum form */
|
|
|
|
Datum addr = PG_GETARG_DATUM(0);
|
|
|
|
text *result;
|
|
|
|
char *str;
|
|
|
|
int len;
|
|
|
|
|
|
|
|
str = DatumGetCString(DirectFunctionCall1(macaddr_out, addr));
|
|
|
|
|
|
|
|
len = (strlen(str) + VARHDRSZ);
|
|
|
|
|
|
|
|
result = palloc(len);
|
|
|
|
|
|
|
|
VARATT_SIZEP(result) = len;
|
|
|
|
memmove(VARDATA(result), str, (len - VARHDRSZ));
|
|
|
|
|
|
|
|
pfree(str);
|
|
|
|
|
|
|
|
PG_RETURN_TEXT_P(result);
|
|
|
|
}
|
|
|
|
|
2001-08-21 23:23:21 +02:00
|
|
|
/*
|
2000-08-23 08:04:49 +02:00
|
|
|
* Convert text to macaddr data type.
|
|
|
|
*/
|
|
|
|
|
|
|
|
Datum
|
|
|
|
text_macaddr(PG_FUNCTION_ARGS)
|
|
|
|
{
|
|
|
|
text *addr = PG_GETARG_TEXT_P(0);
|
2001-08-21 23:23:21 +02:00
|
|
|
Datum result;
|
2000-08-23 08:04:49 +02:00
|
|
|
char str[18];
|
|
|
|
int len;
|
|
|
|
|
2001-03-22 05:01:46 +01:00
|
|
|
len = (VARSIZE(addr) - VARHDRSZ);
|
2000-08-23 08:04:49 +02:00
|
|
|
if (len >= 18)
|
|
|
|
elog(ERROR, "Text is too long to convert to MAC address");
|
|
|
|
|
2001-08-21 23:23:21 +02:00
|
|
|
memcpy(str, VARDATA(addr), len);
|
2001-03-22 05:01:46 +01:00
|
|
|
*(str + len) = '\0';
|
2000-08-23 08:04:49 +02:00
|
|
|
|
2001-03-22 05:01:46 +01:00
|
|
|
result = DirectFunctionCall1(macaddr_in, CStringGetDatum(str));
|
2000-08-23 08:04:49 +02:00
|
|
|
|
2001-03-22 05:01:46 +01:00
|
|
|
return (result);
|
2000-08-23 08:04:49 +02:00
|
|
|
}
|
|
|
|
|
1998-10-03 07:41:01 +02:00
|
|
|
/*
|
2000-08-04 01:07:51 +02:00
|
|
|
* Comparison function for sorting:
|
1998-10-03 07:41:01 +02:00
|
|
|
*/
|
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
static int32
|
|
|
|
macaddr_cmp_internal(macaddr *a1, macaddr *a2)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2000-08-04 01:07:51 +02:00
|
|
|
if (hibits(a1) < hibits(a2))
|
|
|
|
return -1;
|
|
|
|
else if (hibits(a1) > hibits(a2))
|
|
|
|
return 1;
|
|
|
|
else if (lobits(a1) < lobits(a2))
|
|
|
|
return -1;
|
|
|
|
else if (lobits(a1) > lobits(a2))
|
|
|
|
return 1;
|
|
|
|
else
|
|
|
|
return 0;
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_cmp(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_INT32(macaddr_cmp_internal(a1, a2));
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
/*
|
|
|
|
* Boolean comparisons.
|
|
|
|
*/
|
2000-08-23 08:04:49 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_lt(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) < 0);
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_le(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) <= 0);
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_eq(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) == 0);
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_ge(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) >= 0);
|
1998-10-26 02:05:07 +01:00
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_gt(PG_FUNCTION_ARGS)
|
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) > 0);
|
|
|
|
}
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-04 01:07:51 +02:00
|
|
|
Datum
|
|
|
|
macaddr_ne(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *a1 = PG_GETARG_MACADDR_P(0);
|
|
|
|
macaddr *a2 = PG_GETARG_MACADDR_P(1);
|
2000-08-04 01:07:51 +02:00
|
|
|
|
|
|
|
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) != 0);
|
1998-10-03 07:41:01 +02:00
|
|
|
}
|
|
|
|
|
2000-12-09 00:57:03 +01:00
|
|
|
/*
|
|
|
|
* Support function for hash indexes on macaddr.
|
|
|
|
*/
|
|
|
|
Datum
|
|
|
|
hashmacaddr(PG_FUNCTION_ARGS)
|
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *key = PG_GETARG_MACADDR_P(0);
|
2000-12-09 00:57:03 +01:00
|
|
|
|
2002-03-09 18:35:37 +01:00
|
|
|
return hash_any((unsigned char *) key, sizeof(macaddr));
|
2000-12-09 00:57:03 +01:00
|
|
|
}
|
|
|
|
|
1998-10-03 07:41:01 +02:00
|
|
|
/*
|
2000-08-23 08:04:49 +02:00
|
|
|
* Truncation function to allow comparing mac manufacturers.
|
|
|
|
* From suggestion by Alex Pilosov <alex@pilosoft.com>
|
1998-10-03 07:41:01 +02:00
|
|
|
*/
|
2000-07-06 07:48:31 +02:00
|
|
|
Datum
|
2000-08-23 08:04:49 +02:00
|
|
|
macaddr_trunc(PG_FUNCTION_ARGS)
|
1998-10-03 07:41:01 +02:00
|
|
|
{
|
2001-03-22 05:01:46 +01:00
|
|
|
macaddr *addr = PG_GETARG_MACADDR_P(0);
|
2001-08-21 23:23:21 +02:00
|
|
|
macaddr *result;
|
1998-10-03 07:41:01 +02:00
|
|
|
|
2000-08-23 08:04:49 +02:00
|
|
|
result = (macaddr *) palloc(sizeof(macaddr));
|
|
|
|
|
|
|
|
result->a = addr->a;
|
|
|
|
result->b = addr->b;
|
|
|
|
result->c = addr->c;
|
|
|
|
result->d = 0;
|
|
|
|
result->e = 0;
|
|
|
|
result->f = 0;
|
|
|
|
|
|
|
|
PG_RETURN_MACADDR_P(result);
|
1998-10-03 07:41:01 +02:00
|
|
|
}
|