94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/* conversation_filter.c
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* Routines for dissector-generated conversation filters for use as
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* display and color filters
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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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <glib.h>
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#include "packet.h"
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#include "conversation_filter.h"
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GList *conv_filter_list = NULL;
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void register_conversation_filter(const char *proto_name, const char *display_name,
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is_filter_valid_func is_filter_valid, build_filter_string_func build_filter_string) {
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conversation_filter_t *entry;
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entry = g_new(conversation_filter_t, 1);
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entry->proto_name = proto_name;
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entry->display_name = display_name;
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entry->is_filter_valid = is_filter_valid;
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entry->build_filter_string = build_filter_string;
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conv_filter_list = g_list_append(conv_filter_list, entry);
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}
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struct conversation_filter_s* find_conversation_filter(const char *name)
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{
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GList *list_entry = conv_filter_list;
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conversation_filter_t* filter;
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while (list_entry != NULL) {
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filter = (conversation_filter_t*)list_entry->data;
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if (!strcmp(filter->proto_name, name))
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return filter;
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list_entry = g_list_next(list_entry);
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}
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return NULL;
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}
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static void conversation_filter_free(gpointer p, gpointer user_data _U_)
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{
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g_free(p);
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}
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void conversation_filters_cleanup(void)
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{
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g_list_foreach(conv_filter_list, conversation_filter_free, NULL);
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g_list_free(conv_filter_list);
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}
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gchar *conversation_filter_from_packet(struct _packet_info *pinfo)
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{
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const char *layers[] = { "tcp", "udp", "ip", "ipv6", "eth" };
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conversation_filter_t *conv_filter;
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gchar *filter;
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size_t i;
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for (i = 0; i < G_N_ELEMENTS(layers); i++) {
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conv_filter = find_conversation_filter(layers[i]);
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if (conv_filter && conv_filter->is_filter_valid(pinfo)) {
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if ((filter = conv_filter->build_filter_string(pinfo)) != NULL)
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return filter;
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}
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}
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return NULL;
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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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=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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