5 * Routines to modify dcerpc bindings on the fly.
7 * Copyright 2004 Ulf Lamping
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
31 #include <epan/packet.h>
32 #include <epan/epan_dissect.h>
33 #include <epan/dissectors/packet-dcerpc.h>
35 #include "ui/simple_dialog.h"
37 #include "ui/gtk/decode_as_dlg.h"
38 #include "ui/gtk/dlg_utils.h"
39 #include "ui/gtk/gui_utils.h"
40 #include "ui/gtk/decode_as_dcerpc.h"
43 /**************************************************/
44 /* Typedefs & Enums */
45 /**************************************************/
47 /* list of dcerpc "Decode As" bindings */
48 GSList *decode_dcerpc_bindings = NULL;
50 /**************************************************/
51 /* Global Functions */
52 /**************************************************/
54 /* inject one of our bindings into the dcerpc binding table */
56 decode_dcerpc_inject_binding(gpointer data, gpointer user_data _U_)
58 dcerpc_add_conv_to_bind_table((decode_dcerpc_bind_values_t *) data);
62 /* inject all of our bindings into the dcerpc binding table */
64 decode_dcerpc_inject_bindings(gpointer data _U_) {
65 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_inject_binding, NULL /* user_data */);
71 decode_dcerpc_init(void) {
72 GHook* hook_init_proto;
75 /* add a hook function to the dcerpc init_protocols hook */
76 hook_init_proto = g_hook_alloc(&dcerpc_hooks_init_protos);
77 hook_init_proto->func = decode_dcerpc_inject_bindings;
78 g_hook_prepend(&dcerpc_hooks_init_protos, hook_init_proto);
82 /* clone a binding (uses g_malloc) */
83 static decode_dcerpc_bind_values_t *
84 decode_dcerpc_binding_clone(decode_dcerpc_bind_values_t *binding_in)
86 decode_dcerpc_bind_values_t *stored_binding;
88 stored_binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
89 *stored_binding = *binding_in;
90 COPY_ADDRESS(&stored_binding->addr_a, &binding_in->addr_a);
91 COPY_ADDRESS(&stored_binding->addr_b, &binding_in->addr_b);
92 stored_binding->ifname = g_string_new(binding_in->ifname->str);
94 return stored_binding;
100 decode_dcerpc_binding_free(void *binding_in)
102 decode_dcerpc_bind_values_t *binding = binding_in;
104 g_free((void *) binding->addr_a.data);
105 g_free((void *) binding->addr_b.data);
107 g_string_free(binding->ifname, TRUE);
112 /* compare two bindings (except the interface related things, e.g. uuid) */
114 decode_dcerpc_binding_cmp(gconstpointer a, gconstpointer b)
116 const decode_dcerpc_bind_values_t *binding_a = a;
117 const decode_dcerpc_bind_values_t *binding_b = b;
120 /* don't compare uuid and ver! */
122 ADDRESSES_EQUAL(&binding_a->addr_a, &binding_b->addr_a) &&
123 ADDRESSES_EQUAL(&binding_a->addr_b, &binding_b->addr_b) &&
124 binding_a->ptype == binding_b->ptype &&
125 binding_a->port_a == binding_b->port_a &&
126 binding_a->port_b == binding_b->port_b &&
127 binding_a->ctx_id == binding_b->ctx_id &&
128 binding_a->smb_fid == binding_b->smb_fid)
139 /**************************************************/
140 /* Show Changed Bindings */
141 /**************************************************/
144 /* add a single binding to the Show list */
146 decode_dcerpc_add_show_list_single(gpointer data, gpointer user_data)
151 decode_dcerpc_bind_values_t *binding = data;
153 g_snprintf(string1, sizeof(string1), "ctx_id: %u", binding->ctx_id);
155 decode_add_to_show_list (
160 binding->ifname->str);
164 /* add all bindings to the Show list */
166 decode_dcerpc_add_show_list(gpointer user_data)
168 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_add_show_list_single, user_data);
172 /**************************************************/
173 /* Modify the binding routines */
174 /**************************************************/
177 /* removes all bindings */
179 decode_dcerpc_reset_all(void)
181 decode_dcerpc_bind_values_t *binding;
183 while(decode_dcerpc_bindings) {
184 binding = decode_dcerpc_bindings->data;
186 decode_dcerpc_binding_free(binding);
187 decode_dcerpc_bindings = g_slist_remove(
188 decode_dcerpc_bindings,
189 decode_dcerpc_bindings->data);
194 /* remove a binding (looking the same way as the given one) */
196 decode_dcerpc_binding_reset(
197 const gchar *table_name _U_,
198 decode_dcerpc_bind_values_t *binding)
201 decode_dcerpc_bind_values_t *old_binding;
204 /* find the old binding (if it exists) */
205 le = g_slist_find_custom(decode_dcerpc_bindings,
207 decode_dcerpc_binding_cmp);
211 old_binding = le->data;
213 decode_dcerpc_bindings = g_slist_remove(decode_dcerpc_bindings, le->data);
215 g_free((void *) old_binding->addr_a.data);
216 g_free((void *) old_binding->addr_b.data);
217 g_string_free(old_binding->ifname, TRUE);
222 /* a binding has changed (remove a previously existing one) */
224 decode_dcerpc_binding_change(
225 const gchar *table_name,
226 decode_dcerpc_bind_values_t *binding)
229 decode_dcerpc_bind_values_t *stored_binding;
231 /* remove a probably existing old binding */
232 decode_dcerpc_binding_reset(table_name, binding);
234 /* clone the new binding and append it to the list */
235 stored_binding = decode_dcerpc_binding_clone(binding);
236 decode_dcerpc_bindings = g_slist_append (decode_dcerpc_bindings, stored_binding);
240 /* a binding has changed (add/replace/remove it) */
242 decode_change_one_dcerpc_binding(const gchar *table_name, decode_dcerpc_bind_values_t *binding, GtkWidget *list)
244 dcerpc_uuid_key *key;
246 GtkTreeSelection *selection;
250 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(list));
251 if (gtk_tree_selection_get_selected(selection, &model, &iter) == FALSE)
256 gtk_tree_model_get(model, &iter, E_LIST_S_PROTO_NAME, &abbrev,
257 E_LIST_S_TABLE+1, &key, -1);
260 if (key == NULL || (abbrev != NULL && strcmp(abbrev, "(default)") == 0) ) {
261 decode_dcerpc_binding_reset(table_name, binding);
263 binding->ifname = g_string_new(abbrev);
264 binding->uuid = key->uuid;
265 binding->ver = key->ver;
266 decode_dcerpc_binding_change(table_name, binding);
273 /**************************************************/
274 /* Action routines for the "Decode As..." dialog */
275 /* - called when the OK button pressed */
276 /**************************************************/
279 * This routine is called when the user clicks the "OK" button in the
280 * "Decode As..." dialog window and the DCE-RPC page is foremost.
281 * This routine takes care of making any changes requested to the DCE-RPC
284 * @param notebook_pg A pointer to the "DCE-RPC" notebook page.
287 decode_dcerpc(GtkWidget *notebook_pg)
290 const gchar *table_name;
291 decode_dcerpc_bind_values_t *binding;
294 list = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_LIST);
295 if (requested_action == E_DECODE_NO)
296 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(GTK_TREE_VIEW(list)));
298 binding = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_BINDING);
300 /*table_name = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_TABLE);*/
301 table_name = "DCE-RPC";
302 decode_change_one_dcerpc_binding(table_name, binding, list);
306 /**************************************************/
308 /**************************************************/
311 /* add an interface to the list */
313 decode_dcerpc_add_to_list(gpointer key, gpointer value, gpointer user_data)
315 /*dcerpc_uuid_key *k = key;*/
316 dcerpc_uuid_value *v = value;
318 if(strcmp(v->name, "(none)"))
319 decode_add_to_list("DCE-RPC", v->name, key, user_data);
323 /* add all interfaces to the list */
325 decode_add_dcerpc_menu (GtkWidget *page, const gchar *table_name _U_)
327 GtkWidget *scrolled_window;
330 decode_list_menu_start(page, &list, &scrolled_window);
331 g_hash_table_foreach(dcerpc_uuids, decode_dcerpc_add_to_list, list);
332 decode_list_menu_finish(list);
333 return(scrolled_window);
337 /* add a DCE-RPC page to the notebook */
339 decode_dcerpc_add_page (packet_info *pinfo)
341 GtkWidget *page_hb, *info_vb, *label, *scrolled_window;
342 GString *gs = g_string_new("");
343 GString *gs2 = g_string_new("");
344 decode_dcerpc_bind_values_t *binding;
348 binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
349 COPY_ADDRESS(&binding->addr_a, &pinfo->src);
350 COPY_ADDRESS(&binding->addr_b, &pinfo->dst);
351 binding->ptype = pinfo->ptype;
352 binding->port_a = pinfo->srcport;
353 binding->port_b = pinfo->destport;
354 binding->ctx_id = pinfo->dcectxid;
355 binding->smb_fid = dcerpc_get_transport_salt(pinfo);
356 binding->ifname = NULL;
357 /*binding->uuid = NULL;*/
360 /* create page content */
361 page_hb = ws_gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5, FALSE);
362 g_object_set_data(G_OBJECT(page_hb), E_PAGE_ACTION, decode_dcerpc);
363 g_object_set_data(G_OBJECT(page_hb), E_PAGE_TABLE, "DCE-RPC");
364 g_object_set_data(G_OBJECT(page_hb), E_PAGE_TITLE, "DCE-RPC");
365 g_object_set_data(G_OBJECT(page_hb), E_PAGE_BINDING, binding);
367 info_vb = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 5, FALSE);
368 gtk_box_pack_start(GTK_BOX(page_hb), info_vb, TRUE, TRUE, 0);
371 label = gtk_label_new("Replace binding between:");
372 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
374 switch(binding->ptype) {
376 g_string_printf(gs2, "TCP port");
379 g_string_printf(gs2, "UDP port");
382 g_string_printf(gs2, "Unknown port type");
385 /* XXX - how to print the address binding->addr_a? */
386 g_string_printf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_a);
387 label = gtk_label_new(gs->str);
388 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
390 label = gtk_label_new("&");
391 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
393 /* XXX - how to print the address binding->addr_b? */
394 g_string_printf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_b);
395 label = gtk_label_new(gs->str);
396 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
398 label = gtk_label_new("&");
399 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
401 g_string_printf(gs, "Context ID: %u", binding->ctx_id);
402 label = gtk_label_new(gs->str);
403 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
405 label = gtk_label_new("&");
406 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
407 gtk_widget_set_sensitive(label, binding->smb_fid);
409 g_string_printf(gs, "SMB FID: %u", binding->smb_fid);
410 label = gtk_label_new(gs->str);
411 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
412 gtk_widget_set_sensitive(label, binding->smb_fid);
414 /* Conditionally enabled - only when decoding packets */
415 label = gtk_label_new("with:");
416 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
418 decode_dimmable = g_slist_prepend(decode_dimmable, label);
419 scrolled_window = decode_add_dcerpc_menu(page_hb, "dcerpc" /*table_name*/);
420 gtk_box_pack_start(GTK_BOX(page_hb), scrolled_window, TRUE, TRUE, 0);
421 decode_dimmable = g_slist_prepend(decode_dimmable, scrolled_window);
423 g_string_free(gs, TRUE);