forked from osmocom/wireshark
22257e8cf5
Those are the only ones meaningful. Let's convert the buggy dissectors and add an assert to avoid the misuse of the pool parameter in the future Change-Id: I65f470b757f163f11a25cd352ffe168d1f8a86d3 Reviewed-on: https://code.wireshark.org/review/17748 Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
176 lines
4.4 KiB
C
176 lines
4.4 KiB
C
/* proto_data.c
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* Protocol-specific data
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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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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*
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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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*
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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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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#if 0
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#include <epan/epan.h>
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#include <wiretap/wtap.h>
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#endif
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#include <epan/wmem/wmem.h>
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#include <epan/packet_info.h>
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#include <epan/proto_data.h>
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#include <epan/proto.h>
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#if 0
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#include <epan/packet.h>
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#endif
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#if 0
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#include <epan/timestamp.h>
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#endif
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/* Protocol-specific data attached to a frame_data structure - protocol
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index and opaque pointer. */
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typedef struct _proto_data {
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int proto;
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guint32 key;
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void *proto_data;
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} proto_data_t;
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static gint
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p_compare(gconstpointer a, gconstpointer b)
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{
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const proto_data_t *ap = (const proto_data_t *)a;
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const proto_data_t *bp = (const proto_data_t *)b;
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if (ap -> proto > bp -> proto) {
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return 1;
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} else if (ap -> proto == bp -> proto) {
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if (ap->key > bp->key){
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return 1;
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} else if (ap -> key == bp -> key) {
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return 0;
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}
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return -1;
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} else {
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return -1;
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}
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}
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void
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p_add_proto_data(wmem_allocator_t *tmp_scope, struct _packet_info* pinfo, int proto, guint32 key, void *proto_data)
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{
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proto_data_t *p1;
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GSList **proto_list;
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wmem_allocator_t *scope;
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if (tmp_scope == pinfo->pool) {
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scope = tmp_scope;
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proto_list = &pinfo->proto_data;
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} else if (tmp_scope == wmem_file_scope()) {
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scope = wmem_file_scope();
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proto_list = &pinfo->fd->pfd;
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} else {
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DISSECTOR_ASSERT(!"invalid wmem scope");
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}
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p1 = (proto_data_t *)wmem_alloc(scope, sizeof(proto_data_t));
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p1->proto = proto;
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p1->key = key;
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p1->proto_data = proto_data;
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/* Add it to the GSLIST */
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*proto_list = g_slist_prepend(*proto_list, p1);
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}
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void *
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p_get_proto_data(wmem_allocator_t *scope, struct _packet_info* pinfo, int proto, guint32 key)
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{
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proto_data_t temp, *p1;
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GSList *item;
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temp.proto = proto;
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temp.key = key;
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temp.proto_data = NULL;
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if (scope == pinfo->pool) {
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item = g_slist_find_custom(pinfo->proto_data, &temp, p_compare);
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} else if (scope == wmem_file_scope()) {
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item = g_slist_find_custom(pinfo->fd->pfd, &temp, p_compare);
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} else {
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DISSECTOR_ASSERT(!"invalid wmem scope");
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}
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if (item) {
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p1 = (proto_data_t *)item->data;
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return p1->proto_data;
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}
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return NULL;
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}
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void
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p_remove_proto_data(wmem_allocator_t *scope, struct _packet_info* pinfo, int proto, guint32 key)
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{
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proto_data_t temp;
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GSList *item;
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GSList **proto_list;
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temp.proto = proto;
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temp.key = key;
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temp.proto_data = NULL;
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if (scope == pinfo->pool) {
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item = g_slist_find_custom(pinfo->fd->pfd, &temp, p_compare);
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proto_list = &pinfo->proto_data;
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} else if (scope == wmem_file_scope()) {
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item = g_slist_find_custom(pinfo->fd->pfd, &temp, p_compare);
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proto_list = &pinfo->fd->pfd;
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} else {
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DISSECTOR_ASSERT(!"invalid wmem scope");
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}
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if (item) {
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*proto_list = g_slist_remove(*proto_list, item->data);
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}
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}
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gchar *
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p_get_proto_name_and_key(wmem_allocator_t *scope, struct _packet_info* pinfo, guint pfd_index){
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proto_data_t *temp;
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if (scope == pinfo->pool) {
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temp = (proto_data_t *)g_slist_nth_data(pinfo->proto_data, pfd_index);
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} else if (scope == wmem_file_scope()) {
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temp = (proto_data_t *)g_slist_nth_data(pinfo->fd->pfd, pfd_index);
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} else {
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DISSECTOR_ASSERT(!"invalid wmem scope");
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}
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return wmem_strdup_printf(wmem_packet_scope(),"[%s, key %u]",proto_get_protocol_name(temp->proto), temp->key);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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