1 /*
2  *  tap-funnel.c
3  *
4  * EPAN's GUI mini-API
5  *
6  * (c) 2006, Luis E. Garcia Ontanon <luis@ontanon.org>
7  *
8  * Wireshark - Network traffic analyzer
9  * By Gerald Combs <gerald@wireshark.org>
10  * Copyright 1998 Gerald Combs
11  *
12  * SPDX-License-Identifier: GPL-2.0-or-later
13  */
14 
15 #include "config.h"
16 
17 
18 #include <epan/funnel.h>
19 #include <stdio.h>
20 
21 #include "ws_attributes.h"
22 
23 #include <wsutil/wslog.h>
24 
25 void register_tap_listener_funnel(void);
26 
27 struct _funnel_text_window_t {
28     gchar *title;
29     GString *text;
30 };
31 
32 static GPtrArray *text_windows = NULL;
33 
new_text_window(const gchar * title)34 static funnel_text_window_t *new_text_window(const gchar *title) {
35     funnel_text_window_t *tw = g_new(funnel_text_window_t, 1);
36     tw->title = g_strdup(title);
37     tw->text = g_string_new("");
38 
39     if (!text_windows)
40         text_windows = g_ptr_array_new();
41 
42     g_ptr_array_add(text_windows, tw);
43 
44     return tw;
45 }
46 
text_window_clear(funnel_text_window_t * tw)47 static void text_window_clear(funnel_text_window_t *tw) {
48     g_string_free(tw->text, TRUE);
49     tw->text = g_string_new("");
50 }
51 
text_window_append(funnel_text_window_t * tw,const char * text)52 static void text_window_append(funnel_text_window_t *tw, const char *text ) {
53     g_string_append(tw->text, text);
54 }
55 
text_window_set_text(funnel_text_window_t * tw,const char * text)56 static void text_window_set_text(funnel_text_window_t *tw, const char *text) {
57     g_string_free(tw->text, TRUE);
58     tw->text = g_string_new(text);
59 }
60 
text_window_prepend(funnel_text_window_t * tw,const char * text)61 static void text_window_prepend(funnel_text_window_t *tw, const char *text) {
62     g_string_prepend(tw->text, text);
63 }
64 
text_window_get_text(funnel_text_window_t * tw)65 static const gchar *text_window_get_text(funnel_text_window_t *tw) {
66     return tw->text->str;
67 }
68 
funnel_logger(const gchar * log_domain,enum ws_log_level log_level,const gchar * message,gpointer user_data _U_)69 static void funnel_logger(const gchar *log_domain,
70                           enum ws_log_level log_level,
71                           const gchar *message,
72                           gpointer user_data _U_) {
73     ws_log(log_domain, log_level, "%s", message);
74 }
75 
76 
77 
78 static const funnel_ops_t funnel_ops = {
79     NULL,
80     new_text_window,
81     text_window_set_text,
82     text_window_append,
83     text_window_prepend,
84     text_window_clear,
85     text_window_get_text,
86     NULL,
87     NULL,
88     NULL,
89     NULL,
90     /*...,*/
91     NULL,
92     NULL,
93     funnel_logger,
94     NULL,
95     NULL,
96     NULL,
97     NULL,
98     NULL,
99     NULL,
100     NULL,
101     NULL,
102     NULL,
103     NULL,
104     NULL,
105     NULL,
106     NULL,
107     NULL,
108     NULL,
109     NULL
110 };
111 
112 
initialize_funnel_ops(void)113 void initialize_funnel_ops(void) {
114     funnel_set_funnel_ops(&funnel_ops);
115 }
116 
117 
funnel_dump_all_text_windows(void)118 void funnel_dump_all_text_windows(void) {
119     guint i;
120 
121     if (!text_windows) return;
122 
123     for ( i = 0 ; i < text_windows->len; i++) {
124         funnel_text_window_t *tw = (funnel_text_window_t *)g_ptr_array_index(text_windows, i);
125         printf("\n========================== %s "
126                "==========================\n%s\n", tw->title, tw->text->str);
127 
128         g_ptr_array_remove_index(text_windows, i);
129         g_free(tw->title);
130         g_string_free(tw->text, TRUE);
131         g_free(tw);
132     }
133 }
134 
135 #if 0
136 
137 GHashTable *menus = NULL;
138 typedef struct _menu_cb_t {
139     void (*callback)(gpointer);
140     void *callback_data;
141 } menu_cb_t;
142 
143 
144 static void  init_funnel_cmd(const char *opt_arg, void *data ) {
145     gchar **args = g_strsplit(opt_arg, ",", 0);
146     gchar **arg;
147     menu_cb_t *mcb = data;
148 
149     for (arg = args; *arg ; arg++) {
150         g_strstrip(*arg);
151     }
152 
153     if (mcb->callback) {
154         mcb->callback(mcb->callback_data);
155     }
156 
157 }
158 
159 static void register_menu_cb(const char *name,
160                              register_stat_group_t group _U_,
161                              void (*callback)(gpointer),
162                              gpointer callback_data,
163                              gboolean retap _U_) {
164     menu_cb_t* mcb = g_new(menu_cb_t, 1);
165     stat_tap_ui ui_info;
166 
167     mcb->callback = callback;
168     mcb->callback_data = callback_data;
169 
170     if (!menus)
171         menus = g_hash_table_new(g_str_hash, g_str_equal);
172 
173     g_hash_table_insert(menus, g_strdup(name), mcb);
174 
175     ui_info.group = REGISTER_STAT_GROUP_GENERIC;
176     ui_info.title = NULL;
177     ui_info.cli_string = name;
178     ui_info.tap_init_cb = init_funnel_cmd;
179     ui_info.nparams = 0;
180     ui_info.params = NULL;
181     register_stat_tap_ui(&ui_info, mcb);
182 }
183 
184 void initialize_funnel_ops(void) {
185     funnel_set_funnel_ops(&funnel_ops);
186 }
187 
188 #endif
189 void
register_tap_listener_funnel(void)190 register_tap_listener_funnel(void)
191 {
192 #if 0
193     /* #if 0 at least since Revision Rev 17396 */
194     funnel_register_all_menus(register_menu_cb);
195 #endif
196 }
197