2002-08-28 20:41:00 +00:00
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/*
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2004-07-18 00:24:25 +00:00
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* $Id$
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2001-02-01 20:31:21 +00:00
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*
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2006-05-21 05:12:17 +00:00
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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2001-02-01 20:31:21 +00:00
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* Copyright 2001 Gerald Combs
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2002-08-28 20:41:00 +00:00
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*
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2001-02-01 20:31:21 +00:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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2002-08-28 20:41:00 +00:00
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*
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2001-02-01 20:31:21 +00:00
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2002-08-28 20:41:00 +00:00
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*
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2001-02-01 20:31:21 +00:00
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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2012-06-28 22:56:06 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2001-02-01 20:31:21 +00:00
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*/
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2001-02-01 20:21:25 +00:00
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#include "config.h"
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2009-08-26 19:27:49 +00:00
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#include <stdio.h>
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2001-02-01 20:21:25 +00:00
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#include <ftypes-int.h>
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#include <string.h>
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#include <ctype.h>
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2004-08-06 19:57:49 +00:00
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#include <epan/addr_resolv.h>
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2003-08-27 15:23:11 +00:00
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#include <epan/strutil.h>
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2007-08-25 17:29:55 +00:00
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#include <epan/oids.h>
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2001-02-01 20:21:25 +00:00
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2011-07-11 20:32:19 +00:00
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#define CMP_MATCHES cmp_matches
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2003-12-18 13:02:19 +00:00
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2001-02-01 20:21:25 +00:00
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static void
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bytes_fvalue_new(fvalue_t *fv)
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{
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fv->value.bytes = NULL;
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}
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2005-07-23 06:21:17 +00:00
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static void
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2001-02-01 20:21:25 +00:00
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bytes_fvalue_free(fvalue_t *fv)
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{
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if (fv->value.bytes) {
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g_byte_array_free(fv->value.bytes, TRUE);
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2001-10-29 21:13:13 +00:00
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fv->value.bytes=NULL;
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2001-02-01 20:21:25 +00:00
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}
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}
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static void
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bytes_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(already_copied);
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2003-10-29 23:48:14 +00:00
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/* Free up the old value, if we have one */
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bytes_fvalue_free(fv);
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2012-06-02 15:32:54 +00:00
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fv->value.bytes = (GByteArray *)value;
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2001-02-01 20:21:25 +00:00
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}
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2003-02-08 04:22:37 +00:00
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static int
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2003-06-11 21:24:54 +00:00
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bytes_repr_len(fvalue_t *fv, ftrepr_t rtype _U_)
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2003-02-08 04:22:37 +00:00
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{
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2006-11-07 20:30:34 +00:00
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if (fv->value.bytes->len == 0) {
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/* Empty array of bytes, so the representation
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* is an empty string. */
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return 0;
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} else {
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/* 3 bytes for each byte of the byte "NN:" minus 1 byte
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* as there's no trailing ":". */
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return fv->value.bytes->len * 3 - 1;
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}
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2003-02-08 04:22:37 +00:00
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}
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2007-08-25 17:29:55 +00:00
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/*
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* OID_REPR_LEN:
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*
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* 5 for the first byte ([0-2].[0-39].)
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2013-10-06 02:31:10 +00:00
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*
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* REL_OID_REPR_LEN:
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2007-08-25 17:29:55 +00:00
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* for each extra byte if the sub-id is:
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* 1 byte it can be at most "127." (4 bytes we give it 4)
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* 2 bytes it can be at most "16383." (6 bytes we give it 8)
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* 3 bytes it can be at most "2097151." (8 bytes we give it 12)
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* 4 bytes it can be at most "268435456." (10 bytes we give it 16)
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* 5 bytes it can be at most "34359738368." (12 bytes we give it 20)
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2009-09-10 14:37:09 +00:00
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*
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2007-08-25 17:29:55 +00:00
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* a 5 bytes encoded subid can already overflow the guint32 that holds a sub-id,
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* making it a completely different issue!
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*/
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2013-10-06 02:31:10 +00:00
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#define REL_OID_REPR_LEN(fv) (4 * ((fv)->value.bytes->len))
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#define OID_REPR_LEN(fv) (1 + REL_OID_REPR_LEN(fv))
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2007-08-25 17:29:55 +00:00
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2005-12-02 13:16:58 +00:00
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static int
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oid_repr_len(fvalue_t *fv _U_, ftrepr_t rtype _U_)
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{
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2007-08-25 17:29:55 +00:00
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return OID_REPR_LEN(fv);
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2005-12-02 13:16:58 +00:00
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}
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static void
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oid_to_repr(fvalue_t *fv, ftrepr_t rtype _U_, char *buf)
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{
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2007-08-25 17:29:55 +00:00
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const char* oid_str = oid_encoded2string(fv->value.bytes->data,fv->value.bytes->len);
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/*
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* XXX:
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* I'm assuming that oid_repr_len is going to be called before to set buf's size.
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* or else we might have a BO.
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* I guess that is why this callback is not passed a length.
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* -- lego
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*/
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strncpy(buf,oid_str,OID_REPR_LEN(fv));
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2005-12-02 13:16:58 +00:00
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}
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2013-10-06 02:31:10 +00:00
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static int
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rel_oid_repr_len(fvalue_t *fv _U_, ftrepr_t rtype _U_)
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{
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return REL_OID_REPR_LEN(fv);
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}
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static void
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rel_oid_to_repr(fvalue_t *fv, ftrepr_t rtype _U_, char *buf)
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{
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const char* oid_str = rel_oid_encoded2string(fv->value.bytes->data,fv->value.bytes->len);
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/*
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* XXX:
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* I'm assuming that oid_repr_len is going to be called before to set buf's size.
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* or else we might have a BO.
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* I guess that is why this callback is not passed a length.
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* -- lego
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*/
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*buf++ = '.';
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strncpy(buf,oid_str,REL_OID_REPR_LEN(fv));
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}
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2003-06-11 21:24:54 +00:00
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static void
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bytes_to_repr(fvalue_t *fv, ftrepr_t rtype _U_, char *buf)
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2003-02-08 04:22:37 +00:00
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{
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guint8 *c;
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char *write_cursor;
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unsigned int i;
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c = fv->value.bytes->data;
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write_cursor = buf;
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for (i = 0; i < fv->value.bytes->len; i++) {
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if (i == 0) {
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sprintf(write_cursor, "%02x", *c++);
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write_cursor += 2;
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}
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else {
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sprintf(write_cursor, ":%02x", *c++);
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write_cursor += 3;
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}
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}
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}
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2001-02-01 20:21:25 +00:00
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static void
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common_fvalue_set(fvalue_t *fv, guint8* data, guint len)
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{
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2003-10-29 23:48:14 +00:00
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/* Free up the old value, if we have one */
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bytes_fvalue_free(fv);
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2001-02-01 20:21:25 +00:00
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fv->value.bytes = g_byte_array_new();
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g_byte_array_append(fv->value.bytes, data, len);
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}
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2012-08-02 16:54:43 +00:00
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static void
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ax25_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(!already_copied);
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2013-03-19 19:02:25 +00:00
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common_fvalue_set(fv, (guint8 *)value, FT_AX25_ADDR_LEN);
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2012-08-02 16:54:43 +00:00
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}
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2013-07-28 00:07:49 +00:00
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static void
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vines_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(!already_copied);
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common_fvalue_set(fv, (guint8 *)value, FT_VINES_ADDR_LEN);
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}
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2001-02-01 20:21:25 +00:00
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static void
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ether_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(!already_copied);
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2012-06-02 15:32:54 +00:00
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common_fvalue_set(fv, (guint8*)value, FT_ETHER_LEN);
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2001-02-01 20:21:25 +00:00
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}
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2005-12-02 13:16:58 +00:00
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static void
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oid_fvalue_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(already_copied);
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/* Free up the old value, if we have one */
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bytes_fvalue_free(fv);
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2012-06-02 15:32:54 +00:00
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fv->value.bytes = (GByteArray *)value;
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2005-12-02 13:16:58 +00:00
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}
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2001-02-01 20:21:25 +00:00
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static gpointer
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value_get(fvalue_t *fv)
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{
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return fv->value.bytes->data;
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}
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2004-01-01 17:02:56 +00:00
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static gboolean
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bytes_from_string(fvalue_t *fv, char *s, LogFunc logfunc _U_)
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{
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GByteArray *bytes;
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bytes = g_byte_array_new();
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2009-03-15 02:57:16 +00:00
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g_byte_array_append(bytes, (guint8 *)s, (guint)strlen(s));
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2004-01-01 17:02:56 +00:00
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/* Free up the old value, if we have one */
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bytes_fvalue_free(fv);
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fv->value.bytes = bytes;
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return TRUE;
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}
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2001-02-01 20:21:25 +00:00
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static gboolean
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2003-08-27 15:23:11 +00:00
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bytes_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
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2001-02-01 20:21:25 +00:00
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{
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GByteArray *bytes;
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2003-12-29 04:07:06 +00:00
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gboolean res;
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2001-02-01 20:21:25 +00:00
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bytes = g_byte_array_new();
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2004-06-06 14:29:07 +00:00
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res = hex_str_to_bytes(s, bytes, TRUE);
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2001-02-01 20:21:25 +00:00
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2003-12-29 04:07:06 +00:00
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if (!res) {
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2002-02-05 22:50:17 +00:00
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if (logfunc != NULL)
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logfunc("\"%s\" is not a valid byte string.", s);
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2001-02-01 20:21:25 +00:00
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g_byte_array_free(bytes, TRUE);
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return FALSE;
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}
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2003-10-29 23:48:14 +00:00
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/* Free up the old value, if we have one */
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bytes_fvalue_free(fv);
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2001-02-01 20:21:25 +00:00
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2003-10-29 23:48:14 +00:00
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fv->value.bytes = bytes;
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2001-02-01 20:21:25 +00:00
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return TRUE;
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}
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2012-08-02 16:54:43 +00:00
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static gboolean
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ax25_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value, LogFunc logfunc)
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{
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/*
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* Don't log a message if this fails; we'll try looking it
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* up as another way if it does, and if that fails,
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* we'll log a message.
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*/
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if (bytes_from_unparsed(fv, s, TRUE, NULL)) {
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if (fv->value.bytes->len > FT_AX25_ADDR_LEN) {
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logfunc("\"%s\" contains too many bytes to be a valid AX.25 address.",
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s);
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return FALSE;
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}
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else if (fv->value.bytes->len < FT_AX25_ADDR_LEN && !allow_partial_value) {
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logfunc("\"%s\" contains too few bytes to be a valid AX.25 address.",
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s);
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return FALSE;
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}
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return TRUE;
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}
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2013-06-21 05:24:59 +00:00
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/*
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* XXX - what needs to be done here is something such as:
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*
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* Look for a "-" in the string.
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*
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* If we find it, make sure that there are 1-6 alphanumeric
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* ASCII characters before it, and that there are 2 decimal
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* digits after it, from 00 to 15; if we don't find it, make
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* sure that there are 1-6 alphanumeric ASCII characters
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* in the string.
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*
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* If so, make the first 6 octets of the address the ASCII
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* characters, with lower-case letters mapped to upper-case
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* letters, shifted left by 1 bit, padded to 6 octets with
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* spaces, also shifted left by 1 bit, and, if we found a
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* "-", convert what's after it to a number and make the 7th
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* octet the number, shifted left by 1 bit, otherwise make the
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* 7th octet zero.
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*
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* We should also change all the comparison functions for
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* AX.25 addresses check the upper 7 bits of all but the last
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* octet of the address, ignoring the "end of address" bit,
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* and compare only the 4 bits above the low-order bit for
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* the last octet, ignoring the "end of address" bit and
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* various reserved bits and bits used for other purposes.
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*
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* See section 3.12 "Address-Field Encoding" of the AX.25
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* spec and
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*
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* http://www.itu.int/ITU-R/terrestrial/docs/fixedmobile/fxm-art19-sec3.pdf
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*/
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logfunc("\"%s\" is not a valid AX.25 address.", s);
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return FALSE;
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2012-08-02 16:54:43 +00:00
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}
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|
2013-07-28 00:07:49 +00:00
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|
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static gboolean
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vines_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value, LogFunc logfunc)
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|
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{
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/*
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|
* Don't log a message if this fails; we'll try looking it
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|
|
* up as another way if it does, and if that fails,
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* we'll log a message.
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*/
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|
|
if (bytes_from_unparsed(fv, s, TRUE, NULL)) {
|
|
|
|
if (fv->value.bytes->len > FT_VINES_ADDR_LEN) {
|
|
|
|
logfunc("\"%s\" contains too many bytes to be a valid Vines address.",
|
|
|
|
s);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
else if (fv->value.bytes->len < FT_VINES_ADDR_LEN && !allow_partial_value) {
|
|
|
|
logfunc("\"%s\" contains too few bytes to be a valid Vines address.",
|
|
|
|
s);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* XXX - need better validation of Vines address */
|
|
|
|
|
|
|
|
logfunc("\"%s\" is not a valid Vines address.", s);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
static gboolean
|
2003-08-27 15:23:11 +00:00
|
|
|
ether_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value, LogFunc logfunc)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
guint8 *mac;
|
|
|
|
|
2001-03-03 00:33:24 +00:00
|
|
|
/*
|
|
|
|
* Don't log a message if this fails; we'll try looking it
|
|
|
|
* up as an Ethernet host name if it does, and if that fails,
|
|
|
|
* we'll log a message.
|
|
|
|
*/
|
2003-08-27 15:23:11 +00:00
|
|
|
if (bytes_from_unparsed(fv, s, TRUE, NULL)) {
|
2009-09-10 18:22:33 +00:00
|
|
|
if (fv->value.bytes->len > FT_ETHER_LEN) {
|
2003-08-27 15:23:11 +00:00
|
|
|
logfunc("\"%s\" contains too many bytes to be a valid Ethernet address.",
|
|
|
|
s);
|
|
|
|
return FALSE;
|
|
|
|
}
|
2009-09-10 18:22:33 +00:00
|
|
|
else if (fv->value.bytes->len < FT_ETHER_LEN && !allow_partial_value) {
|
2003-08-27 15:23:11 +00:00
|
|
|
logfunc("\"%s\" contains too few bytes to be a valid Ethernet address.",
|
|
|
|
s);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
mac = get_ether_addr(s);
|
|
|
|
if (!mac) {
|
2002-02-05 22:50:17 +00:00
|
|
|
logfunc("\"%s\" is not a valid hostname or Ethernet address.",
|
|
|
|
s);
|
2001-02-01 20:21:25 +00:00
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
ether_fvalue_set(fv, mac, FALSE);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2005-12-02 13:16:58 +00:00
|
|
|
static gboolean
|
2005-12-06 12:50:11 +00:00
|
|
|
oid_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
|
2005-12-02 13:16:58 +00:00
|
|
|
{
|
|
|
|
GByteArray *bytes;
|
|
|
|
gboolean res;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Don't log a message if this fails; we'll try looking it
|
|
|
|
* up as an OID if it does, and if that fails,
|
|
|
|
* we'll log a message.
|
|
|
|
*/
|
2006-11-02 08:48:58 +00:00
|
|
|
/* do not try it as '.' is handled as valid separator for hexbytes :(
|
2005-12-02 13:16:58 +00:00
|
|
|
if (bytes_from_unparsed(fv, s, TRUE, NULL)) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
2006-11-02 08:48:58 +00:00
|
|
|
*/
|
2005-12-02 13:16:58 +00:00
|
|
|
|
|
|
|
bytes = g_byte_array_new();
|
|
|
|
res = oid_str_to_bytes(s, bytes);
|
|
|
|
if (!res) {
|
|
|
|
if (logfunc != NULL)
|
|
|
|
logfunc("\"%s\" is not a valid OBJECT IDENTIFIER.", s);
|
|
|
|
g_byte_array_free(bytes, TRUE);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Free up the old value, if we have one */
|
|
|
|
bytes_fvalue_free(fv);
|
|
|
|
fv->value.bytes = bytes;
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2013-10-06 02:31:10 +00:00
|
|
|
static gboolean
|
|
|
|
rel_oid_from_unparsed(fvalue_t *fv, char *s, gboolean allow_partial_value _U_, LogFunc logfunc)
|
|
|
|
{
|
|
|
|
GByteArray *bytes;
|
|
|
|
gboolean res;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Don't log a message if this fails; we'll try looking it
|
|
|
|
* up as an OID if it does, and if that fails,
|
|
|
|
* we'll log a message.
|
|
|
|
*/
|
|
|
|
bytes = g_byte_array_new();
|
|
|
|
res = rel_oid_str_to_bytes(s, bytes, FALSE);
|
|
|
|
if (!res) {
|
|
|
|
if (logfunc != NULL)
|
|
|
|
logfunc("\"%s\" is not a valid RELATIVE-OID.", s);
|
|
|
|
g_byte_array_free(bytes, TRUE);
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Free up the old value, if we have one */
|
|
|
|
bytes_fvalue_free(fv);
|
|
|
|
fv->value.bytes = bytes;
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
static guint
|
|
|
|
len(fvalue_t *fv)
|
|
|
|
{
|
|
|
|
return fv->value.bytes->len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
slice(fvalue_t *fv, GByteArray *bytes, guint offset, guint length)
|
|
|
|
{
|
|
|
|
guint8* data;
|
|
|
|
|
|
|
|
data = fv->value.bytes->data + offset;
|
|
|
|
|
|
|
|
g_byte_array_append(bytes, data, length);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_eq(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len != b->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (memcmp(a->data, b->data, a->len) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_ne(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len != b->len) {
|
2008-04-20 22:34:47 +00:00
|
|
|
return TRUE;
|
2001-02-01 20:21:25 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return (memcmp(a->data, b->data, a->len) != 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_gt(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len > b->len) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (a->len < b->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
2002-08-28 20:41:00 +00:00
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
return (memcmp(a->data, b->data, a->len) > 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_ge(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len > b->len) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (a->len < b->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
2002-08-28 20:41:00 +00:00
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
return (memcmp(a->data, b->data, a->len) >= 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_lt(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len < b->len) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (a->len > b->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
2002-08-28 20:41:00 +00:00
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
return (memcmp(a->data, b->data, a->len) < 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_le(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2001-02-01 20:21:25 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (a->len < b->len) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (a->len > b->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
2002-08-28 20:41:00 +00:00
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
return (memcmp(a->data, b->data, a->len) <= 0);
|
|
|
|
}
|
|
|
|
|
2007-11-06 08:46:57 +00:00
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_bitwise_and(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2004-02-27 12:00:32 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
guint i = 0;
|
|
|
|
unsigned char *p_a, *p_b;
|
|
|
|
|
|
|
|
if (b->len != a->len) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
p_a = a->data;
|
|
|
|
p_b = b->data;
|
|
|
|
while (i < b->len) {
|
|
|
|
if (p_a[i] & p_b[i])
|
2007-11-06 08:46:57 +00:00
|
|
|
return TRUE;
|
2004-02-27 12:00:32 +00:00
|
|
|
else
|
2007-11-06 08:46:57 +00:00
|
|
|
i++;
|
2004-02-27 12:00:32 +00:00
|
|
|
}
|
2007-11-06 08:46:57 +00:00
|
|
|
return FALSE;
|
2004-02-27 12:00:32 +00:00
|
|
|
}
|
|
|
|
|
2003-08-27 15:23:11 +00:00
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_contains(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2003-08-27 15:23:11 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GByteArray *b = fv_b->value.bytes;
|
|
|
|
|
|
|
|
if (epan_memmem(a->data, a->len, b->data, b->len)) {
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-12-18 01:15:08 +00:00
|
|
|
static gboolean
|
2012-11-06 13:28:59 +00:00
|
|
|
cmp_matches(const fvalue_t *fv_a, const fvalue_t *fv_b)
|
2009-12-18 01:15:08 +00:00
|
|
|
{
|
|
|
|
GByteArray *a = fv_a->value.bytes;
|
|
|
|
GRegex *regex = fv_b->value.re;
|
|
|
|
|
|
|
|
/* fv_b is always a FT_PCRE, otherwise the dfilter semcheck() would have
|
|
|
|
* warned us. For the same reason (and because we're using g_malloc()),
|
|
|
|
* fv_b->value.re is not NULL.
|
|
|
|
*/
|
|
|
|
if (strcmp(fv_b->ftype->name, "FT_PCRE") != 0) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
if (! regex) {
|
|
|
|
return FALSE;
|
|
|
|
}
|
2013-06-21 05:24:59 +00:00
|
|
|
/*
|
|
|
|
* XXX - do we want G_REGEX_RAW or not?
|
|
|
|
*
|
|
|
|
* If we're matching against a string, we don't want it (and
|
|
|
|
* we want the string value encoded in UTF-8 - and, if it can't
|
|
|
|
* be converted to UTF-8, because it's in a character encoding
|
|
|
|
* that doesn't map every possible byte sequence to Unicode (and
|
|
|
|
* that includes strings that are supposed to be in UTF-8 but
|
|
|
|
* that contain invalid UTF-8 sequences!), treat the match as
|
|
|
|
* failing.
|
|
|
|
*
|
|
|
|
* If we're matching against binary data, and matching a binary
|
|
|
|
* pattern (e.g. "0xfa, 3 or more 0xff, and 0x37, in order"),
|
|
|
|
* we'd want G_REGEX_RAW. If we're matching a text pattern,
|
|
|
|
* it's not clear *what* the right thing to do is - if they're
|
|
|
|
* matching against a pattern containing non-ASCII characters,
|
|
|
|
* they might want it to match in whatever encoding the binary
|
|
|
|
* data is, but Wireshark might not have a clue what that
|
|
|
|
* encoding is. In addition, it's not clear how to tell
|
|
|
|
* whether a pattern is "binary" or not, short of having
|
|
|
|
* a different (non-PCRE) syntax for binary patterns.
|
|
|
|
*
|
|
|
|
* So we don't use G_REGEX_RAW for now.
|
|
|
|
*/
|
2009-12-18 01:15:08 +00:00
|
|
|
return g_regex_match_full(
|
2012-06-02 15:32:54 +00:00
|
|
|
regex, /* Compiled PCRE */
|
2013-06-21 05:24:59 +00:00
|
|
|
(char *)a->data, /* The data to check for the pattern... */
|
|
|
|
(int)a->len, /* ... and its length */
|
|
|
|
0, /* Start offset within data */
|
|
|
|
(GRegexMatchFlags)0, /* GRegexMatchFlags */
|
2012-06-02 15:32:54 +00:00
|
|
|
NULL, /* We are not interested in the match information */
|
|
|
|
NULL /* We don't want error information */
|
2009-12-18 01:15:08 +00:00
|
|
|
);
|
|
|
|
/* NOTE - DO NOT g_free(data) */
|
|
|
|
}
|
2003-12-18 13:02:19 +00:00
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
void
|
|
|
|
ftype_register_bytes(void)
|
|
|
|
{
|
|
|
|
|
|
|
|
static ftype_t bytes_type = {
|
2012-06-02 15:32:54 +00:00
|
|
|
FT_BYTES, /* ftype */
|
|
|
|
"FT_BYTES", /* name */
|
2011-12-27 20:35:41 +00:00
|
|
|
"Sequence of bytes", /* pretty_name */
|
2012-06-02 15:32:54 +00:00
|
|
|
0, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
2003-08-27 15:23:11 +00:00
|
|
|
bytes_from_unparsed, /* val_from_unparsed */
|
2012-06-02 15:32:54 +00:00
|
|
|
bytes_from_string, /* val_from_string */
|
|
|
|
bytes_to_repr, /* val_to_string_repr */
|
|
|
|
bytes_repr_len, /* len_string_repr */
|
|
|
|
|
|
|
|
bytes_fvalue_set, /* set_value */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_sinteger */
|
|
|
|
NULL, /* set_value_integer64 */
|
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
|
|
|
NULL, /* get_value_uinteger */
|
|
|
|
NULL, /* get_value_sinteger */
|
|
|
|
NULL, /* get_value_integer64 */
|
|
|
|
NULL, /* get_value_floating */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
2002-05-09 23:50:34 +00:00
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
2007-11-06 08:46:57 +00:00
|
|
|
cmp_bitwise_and,
|
2003-08-27 15:23:11 +00:00
|
|
|
cmp_contains,
|
2003-12-18 13:02:19 +00:00
|
|
|
CMP_MATCHES,
|
2002-05-09 23:50:34 +00:00
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
|
|
|
static ftype_t uint_bytes_type = {
|
2006-05-02 14:26:17 +00:00
|
|
|
FT_UINT_BYTES, /* ftype */
|
2002-05-09 23:50:34 +00:00
|
|
|
"FT_UINT_BYTES", /* name */
|
2011-12-27 20:35:41 +00:00
|
|
|
"Sequence of bytes", /* pretty_name */
|
2002-05-09 23:50:34 +00:00
|
|
|
0, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
2003-08-27 15:23:11 +00:00
|
|
|
bytes_from_unparsed, /* val_from_unparsed */
|
2003-07-25 03:44:05 +00:00
|
|
|
NULL, /* val_from_string */
|
2003-06-11 21:24:54 +00:00
|
|
|
bytes_to_repr, /* val_to_string_repr */
|
|
|
|
bytes_repr_len, /* len_string_repr */
|
2002-05-09 23:50:34 +00:00
|
|
|
|
|
|
|
bytes_fvalue_set, /* set_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_sinteger */
|
2004-08-22 00:31:58 +00:00
|
|
|
NULL, /* set_value_integer64 */
|
2002-05-09 23:50:34 +00:00
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* get_value_uinteger */
|
|
|
|
NULL, /* get_value_sinteger */
|
2004-08-22 00:31:58 +00:00
|
|
|
NULL, /* get_value_integer64 */
|
2003-02-08 04:22:37 +00:00
|
|
|
NULL, /* get_value_floating */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
2007-11-06 08:46:57 +00:00
|
|
|
cmp_bitwise_and,
|
2003-08-27 15:23:11 +00:00
|
|
|
cmp_contains,
|
2003-12-06 16:35:20 +00:00
|
|
|
NULL, /* cmp_matches */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2012-08-02 16:54:43 +00:00
|
|
|
static ftype_t ax25_type = {
|
|
|
|
FT_AX25, /* ftype */
|
|
|
|
"FT_AX25", /* name */
|
|
|
|
"AX.25 address", /* pretty_name */
|
|
|
|
FT_AX25_ADDR_LEN, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
|
|
|
ax25_from_unparsed, /* val_from_unparsed */
|
|
|
|
NULL, /* val_from_string */
|
|
|
|
bytes_to_repr, /* val_to_string_repr */
|
|
|
|
bytes_repr_len, /* len_string_repr */
|
|
|
|
|
|
|
|
ax25_fvalue_set, /* set_value */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_integer */
|
|
|
|
NULL, /* set_value_integer64 */
|
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* get_value_integer */
|
|
|
|
NULL, /* get_value_integer64 */
|
|
|
|
NULL, /* get_value_floating */
|
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
|
|
|
cmp_bitwise_and,
|
|
|
|
cmp_contains,
|
|
|
|
CMP_MATCHES,
|
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2013-07-28 00:07:49 +00:00
|
|
|
static ftype_t vines_type = {
|
|
|
|
FT_VINES, /* ftype */
|
|
|
|
"FT_VINES", /* name */
|
|
|
|
"VINES address", /* pretty_name */
|
|
|
|
FT_VINES_ADDR_LEN, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
|
|
|
vines_from_unparsed, /* val_from_unparsed */
|
|
|
|
NULL, /* val_from_string */
|
|
|
|
bytes_to_repr, /* val_to_string_repr */
|
|
|
|
bytes_repr_len, /* len_string_repr */
|
|
|
|
|
|
|
|
vines_fvalue_set, /* set_value */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_integer */
|
|
|
|
NULL, /* set_value_integer64 */
|
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* get_value_integer */
|
|
|
|
NULL, /* get_value_integer64 */
|
|
|
|
NULL, /* get_value_floating */
|
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
|
|
|
cmp_bitwise_and,
|
|
|
|
cmp_contains,
|
|
|
|
CMP_MATCHES,
|
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
static ftype_t ether_type = {
|
2006-05-02 14:26:17 +00:00
|
|
|
FT_ETHER, /* ftype */
|
2003-02-08 04:22:37 +00:00
|
|
|
"FT_ETHER", /* name */
|
|
|
|
"Ethernet or other MAC address",/* pretty_name */
|
2009-09-10 18:22:33 +00:00
|
|
|
FT_ETHER_LEN, /* wire_size */
|
2003-02-08 04:22:37 +00:00
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
2003-07-25 03:44:05 +00:00
|
|
|
ether_from_unparsed, /* val_from_unparsed */
|
|
|
|
NULL, /* val_from_string */
|
2003-06-11 21:24:54 +00:00
|
|
|
bytes_to_repr, /* val_to_string_repr */
|
|
|
|
bytes_repr_len, /* len_string_repr */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
2003-02-08 04:22:37 +00:00
|
|
|
ether_fvalue_set, /* set_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_sinteger */
|
2004-08-22 00:31:58 +00:00
|
|
|
NULL, /* set_value_integer64 */
|
2003-02-08 04:22:37 +00:00
|
|
|
NULL, /* set_value_floating */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
2003-02-08 04:22:37 +00:00
|
|
|
value_get, /* get_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* get_value_uinteger */
|
|
|
|
NULL, /* get_value_sinteger */
|
2004-08-22 00:31:58 +00:00
|
|
|
NULL, /* get_value_integer64 */
|
2003-02-08 04:22:37 +00:00
|
|
|
NULL, /* get_value_floating */
|
2001-02-01 20:21:25 +00:00
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
2007-11-06 08:46:57 +00:00
|
|
|
cmp_bitwise_and,
|
2003-08-27 15:23:11 +00:00
|
|
|
cmp_contains,
|
2003-12-18 13:02:19 +00:00
|
|
|
CMP_MATCHES,
|
2001-02-01 20:21:25 +00:00
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2005-12-02 13:16:58 +00:00
|
|
|
static ftype_t oid_type = {
|
2006-05-02 14:26:17 +00:00
|
|
|
FT_OID, /* ftype */
|
2010-05-11 21:46:17 +00:00
|
|
|
"FT_OID", /* name */
|
2011-12-27 20:35:41 +00:00
|
|
|
"ASN.1 object identifier", /* pretty_name */
|
2005-12-02 13:16:58 +00:00
|
|
|
0, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
|
|
|
oid_from_unparsed, /* val_from_unparsed */
|
|
|
|
NULL, /* val_from_string */
|
|
|
|
oid_to_repr, /* val_to_string_repr */
|
|
|
|
oid_repr_len, /* len_string_repr */
|
|
|
|
|
|
|
|
oid_fvalue_set, /* set_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_sinteger */
|
2005-12-02 13:16:58 +00:00
|
|
|
NULL, /* set_value_integer64 */
|
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
2007-01-18 11:02:26 +00:00
|
|
|
NULL, /* get_value_uinteger */
|
|
|
|
NULL, /* get_value_sinteger */
|
2005-12-02 13:16:58 +00:00
|
|
|
NULL, /* get_value_integer64 */
|
|
|
|
NULL, /* get_value_floating */
|
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
2007-11-06 08:46:57 +00:00
|
|
|
cmp_bitwise_and,
|
2005-12-02 13:16:58 +00:00
|
|
|
cmp_contains,
|
|
|
|
NULL, /* cmp_matches */
|
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2013-10-06 02:31:10 +00:00
|
|
|
static ftype_t rel_oid_type = {
|
|
|
|
FT_REL_OID, /* ftype */
|
|
|
|
"FT_REL_OID", /* name */
|
|
|
|
"ASN.1 relative object identifier", /* pretty_name */
|
|
|
|
0, /* wire_size */
|
|
|
|
bytes_fvalue_new, /* new_value */
|
|
|
|
bytes_fvalue_free, /* free_value */
|
|
|
|
rel_oid_from_unparsed, /* val_from_unparsed */
|
|
|
|
NULL, /* val_from_string */
|
|
|
|
rel_oid_to_repr, /* val_to_string_repr */
|
|
|
|
rel_oid_repr_len, /* len_string_repr */
|
|
|
|
|
|
|
|
oid_fvalue_set, /* set_value (same as full oid) */
|
|
|
|
NULL, /* set_value_uinteger */
|
|
|
|
NULL, /* set_value_sinteger */
|
|
|
|
NULL, /* set_value_integer64 */
|
|
|
|
NULL, /* set_value_floating */
|
|
|
|
|
|
|
|
value_get, /* get_value */
|
|
|
|
NULL, /* get_value_uinteger */
|
|
|
|
NULL, /* get_value_sinteger */
|
|
|
|
NULL, /* get_value_integer64 */
|
|
|
|
NULL, /* get_value_floating */
|
|
|
|
|
|
|
|
cmp_eq,
|
|
|
|
cmp_ne,
|
|
|
|
cmp_gt,
|
|
|
|
cmp_ge,
|
|
|
|
cmp_lt,
|
|
|
|
cmp_le,
|
|
|
|
cmp_bitwise_and,
|
|
|
|
cmp_contains,
|
|
|
|
NULL, /* cmp_matches */
|
|
|
|
|
|
|
|
len,
|
|
|
|
slice,
|
|
|
|
};
|
|
|
|
|
2001-02-01 20:21:25 +00:00
|
|
|
ftype_register(FT_BYTES, &bytes_type);
|
2002-05-10 02:44:08 +00:00
|
|
|
ftype_register(FT_UINT_BYTES, &uint_bytes_type);
|
2012-08-02 16:54:43 +00:00
|
|
|
ftype_register(FT_AX25, &ax25_type);
|
2013-07-28 00:07:49 +00:00
|
|
|
ftype_register(FT_VINES, &vines_type);
|
2001-02-01 20:21:25 +00:00
|
|
|
ftype_register(FT_ETHER, ðer_type);
|
2005-12-02 13:16:58 +00:00
|
|
|
ftype_register(FT_OID, &oid_type);
|
2013-10-06 02:31:10 +00:00
|
|
|
ftype_register(FT_REL_OID, &rel_oid_type);
|
2001-02-01 20:21:25 +00:00
|
|
|
}
|