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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 #include "decode_as_dlg.h"
32 #include "dlg_utils.h"
34 #include "simple_dialog.h"
35 #include <epan/packet.h>
36 #include <epan/ipproto.h>
38 #include <epan/epan_dissect.h>
39 #include "compat_macros.h"
40 #include "decode_as_dcerpc.h"
42 #include <epan/dissectors/packet-dcerpc.h>
45 /**************************************************/
46 /* Typedefs & Enums */
47 /**************************************************/
49 /* list of dcerpc "Decode As" bindings */
50 GSList *decode_dcerpc_bindings = NULL;
52 /**************************************************/
53 /* Global Functions */
54 /**************************************************/
56 /* inject one of our bindings into the dcerpc binding table */
58 decode_dcerpc_inject_binding(gpointer data, gpointer user_data)
60 dcerpc_add_conv_to_bind_table((decode_dcerpc_bind_values_t *) data);
64 /* inject all of our bindings into the dcerpc binding table */
66 decode_dcerpc_inject_bindings(gpointer data) {
67 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_inject_binding, NULL /* user_data */);
73 decode_dcerpc_init(void) {
74 GHook* hook_init_proto;
77 /* add a hook function to the dcerpc init_protocols hook */
78 hook_init_proto = g_hook_alloc(&dcerpc_hooks_init_protos);
79 hook_init_proto->func = decode_dcerpc_inject_bindings;
80 g_hook_prepend(&dcerpc_hooks_init_protos, hook_init_proto);
84 /* clone a binding (uses g_malloc) */
85 static decode_dcerpc_bind_values_t *
86 decode_dcerpc_binding_clone(decode_dcerpc_bind_values_t *binding_in)
88 decode_dcerpc_bind_values_t *stored_binding;
90 stored_binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
91 *stored_binding = *binding_in;
92 COPY_ADDRESS(&stored_binding->addr_a, &binding_in->addr_a);
93 COPY_ADDRESS(&stored_binding->addr_b, &binding_in->addr_b);
94 stored_binding->ifname = g_string_new(binding_in->ifname->str);
96 return stored_binding;
102 decode_dcerpc_binding_free(void *binding_in)
104 decode_dcerpc_bind_values_t *binding = binding_in;
106 g_free((void *) binding->addr_a.data);
107 g_free((void *) binding->addr_b.data);
109 g_string_free(binding->ifname, TRUE);
114 /* compare two bindings (except the interface related things, e.g. uuid) */
116 decode_dcerpc_binding_cmp(gconstpointer a, gconstpointer b)
118 const decode_dcerpc_bind_values_t *binding_a = a;
119 const decode_dcerpc_bind_values_t *binding_b = b;
122 /* don't compare uuid and ver! */
124 ADDRESSES_EQUAL(&binding_a->addr_a, &binding_b->addr_a) &&
125 ADDRESSES_EQUAL(&binding_a->addr_b, &binding_b->addr_b) &&
126 binding_a->ptype == binding_b->ptype &&
127 binding_a->port_a == binding_b->port_a &&
128 binding_a->port_b == binding_b->port_b &&
129 binding_a->ctx_id == binding_b->ctx_id &&
130 binding_a->smb_fid == binding_b->smb_fid)
141 /**************************************************/
142 /* Show Changed Bindings */
143 /**************************************************/
146 /* add a single binding to the Show list */
148 decode_dcerpc_add_show_list_single(gpointer data, gpointer user_data)
153 decode_dcerpc_bind_values_t *binding = data;
155 g_snprintf(string1, sizeof(string1), "ctx_id: %u", binding->ctx_id);
157 decode_add_to_show_list (
162 binding->ifname->str);
166 /* add all bindings to the Show list */
168 decode_dcerpc_add_show_list(gpointer user_data)
170 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_add_show_list_single, user_data);
174 /**************************************************/
175 /* Modify the binding routines */
176 /**************************************************/
179 /* removes all bindings */
181 decode_dcerpc_reset_all(void)
183 decode_dcerpc_bind_values_t *binding;
185 while(decode_dcerpc_bindings) {
186 binding = decode_dcerpc_bindings->data;
188 decode_dcerpc_binding_free(binding);
189 decode_dcerpc_bindings = g_slist_remove(
190 decode_dcerpc_bindings,
191 decode_dcerpc_bindings->data);
196 /* remove a binding (looking the same way as the given one) */
198 decode_dcerpc_binding_reset(
200 decode_dcerpc_bind_values_t *binding)
203 decode_dcerpc_bind_values_t *old_binding;
206 /* find the old binding (if it exists) */
207 le = g_slist_find_custom(decode_dcerpc_bindings,
209 decode_dcerpc_binding_cmp);
213 old_binding = le->data;
215 decode_dcerpc_bindings = g_slist_remove(decode_dcerpc_bindings, le->data);
217 g_free((void *) old_binding->addr_a.data);
218 g_free((void *) old_binding->addr_b.data);
219 g_string_free(old_binding->ifname, TRUE);
224 /* a binding has changed (remove a previously existing one) */
226 decode_dcerpc_binding_change(
228 decode_dcerpc_bind_values_t *binding)
231 decode_dcerpc_bind_values_t *stored_binding;
233 /* remove a probably existing old binding */
234 decode_dcerpc_binding_reset(table_name, binding);
236 /* clone the new binding and append it to the list */
237 stored_binding = decode_dcerpc_binding_clone(binding);
238 decode_dcerpc_bindings = g_slist_append (decode_dcerpc_bindings, stored_binding);
242 /* a binding has changed (add/replace/remove it) */
244 decode_change_one_dcerpc_binding(gchar *table_name, decode_dcerpc_bind_values_t *binding, GtkWidget *list)
246 dcerpc_uuid_key *key;
248 #if GTK_MAJOR_VERSION < 2
251 GtkTreeSelection *selection;
256 #if GTK_MAJOR_VERSION < 2
257 if (!GTK_CLIST(list)->selection)
262 row = GPOINTER_TO_INT(GTK_CLIST(list)->selection->data);
263 key = gtk_clist_get_row_data(GTK_CLIST(list), row);
264 gtk_clist_get_text(GTK_CLIST(list), row, E_LIST_S_PROTO_NAME, &abbrev);
267 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(list));
268 if (gtk_tree_selection_get_selected(selection, &model, &iter) == FALSE)
273 gtk_tree_model_get(model, &iter, E_LIST_S_PROTO_NAME, &abbrev,
274 E_LIST_S_TABLE+1, &key, -1);
278 if (abbrev != NULL && strcmp(abbrev, "(default)") == 0) {
279 decode_dcerpc_binding_reset(table_name, binding);
281 binding->ifname = g_string_new(abbrev);
282 binding->uuid = key->uuid;
283 binding->ver = key->ver;
284 decode_dcerpc_binding_change(table_name, binding);
286 #if GTK_MAJOR_VERSION >= 2
294 /**************************************************/
295 /* Action routines for the "Decode As..." dialog */
296 /* - called when the OK button pressed */
297 /**************************************************/
300 * This routine is called when the user clicks the "OK" button in the
301 * "Decode As..." dialog window and the DCE-RPC page is foremost.
302 * This routine takes care of making any changes requested to the DCE-RPC
305 * @param notebook_pg A pointer to the "DCE-RPC" notebook page.
308 decode_dcerpc(GtkWidget *notebook_pg)
312 decode_dcerpc_bind_values_t *binding;
315 list = OBJECT_GET_DATA(notebook_pg, E_PAGE_LIST);
316 if (requested_action == E_DECODE_NO)
317 #if GTK_MAJOR_VERSION < 2
318 gtk_clist_unselect_all(GTK_CLIST(list));
320 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(GTK_TREE_VIEW(list)));
323 binding = OBJECT_GET_DATA(notebook_pg, E_PAGE_BINDING);
325 /*table_name = OBJECT_GET_DATA(notebook_pg, E_PAGE_TABLE);*/
326 table_name = "DCE-RPC";
327 decode_change_one_dcerpc_binding(table_name, binding, list);
331 /**************************************************/
333 /**************************************************/
336 /* add an interface to the list */
338 decode_dcerpc_add_to_list(gpointer key, gpointer value, gpointer user_data)
340 dcerpc_uuid_key *k = key;
341 dcerpc_uuid_value *v = value;
343 if(strcmp(v->name, "(none)"))
344 decode_add_to_list("DCE-RPC", v->name, key, user_data);
348 /* add all interfaces to the list */
350 decode_add_dcerpc_menu (GtkWidget *page, gchar *table_name)
352 GtkWidget *scrolled_window;
355 decode_list_menu_start(page, &list, &scrolled_window);
356 g_hash_table_foreach(dcerpc_uuids, decode_dcerpc_add_to_list, list);
357 decode_list_menu_finish(list);
358 return(scrolled_window);
362 /* add a DCE-RPC page to the notebook */
364 decode_dcerpc_add_page (packet_info *pinfo)
366 GtkWidget *page_hb, *info_vb, *label, *scrolled_window;
367 GString *gs = g_string_new("");
368 GString *gs2 = g_string_new("");
369 decode_dcerpc_bind_values_t *binding;
373 binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
374 COPY_ADDRESS(&binding->addr_a, &pinfo->src);
375 COPY_ADDRESS(&binding->addr_b, &pinfo->dst);
376 binding->ptype = pinfo->ptype;
377 binding->port_a = pinfo->srcport;
378 binding->port_b = pinfo->destport;
379 binding->ctx_id = pinfo->dcectxid;
380 binding->smb_fid = dcerpc_get_transport_salt(pinfo, pinfo->dcetransporttype);
381 binding->ifname = NULL;
382 /*binding->uuid = NULL;*/
385 /* create page content */
386 page_hb = gtk_hbox_new(FALSE, 5);
387 OBJECT_SET_DATA(page_hb, E_PAGE_ACTION, decode_dcerpc);
388 OBJECT_SET_DATA(page_hb, E_PAGE_TABLE, "DCE-RPC");
389 OBJECT_SET_DATA(page_hb, E_PAGE_TITLE, "DCE-RPC");
390 OBJECT_SET_DATA(page_hb, E_PAGE_BINDING, binding);
392 info_vb = gtk_vbox_new(FALSE, 5);
393 gtk_box_pack_start(GTK_BOX(page_hb), info_vb, TRUE, TRUE, 0);
396 label = gtk_label_new("Replace binding between:");
397 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
399 switch(binding->ptype) {
401 g_string_sprintf(gs2, "TCP port");
404 g_string_sprintf(gs2, "UDP port");
407 g_string_sprintf(gs2, "Unknown port type");
410 /* XXX - how to print the address binding->addr_a? */
411 g_string_sprintf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_a);
412 label = gtk_label_new(gs->str);
413 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
415 label = gtk_label_new("&");
416 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
418 /* XXX - how to print the address binding->addr_b? */
419 g_string_sprintf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_b);
420 label = gtk_label_new(gs->str);
421 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
423 label = gtk_label_new("&");
424 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
426 g_string_sprintf(gs, "Context ID: %u", binding->ctx_id);
427 label = gtk_label_new(gs->str);
428 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
430 label = gtk_label_new("&");
431 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
432 gtk_widget_set_sensitive(label, binding->smb_fid);
434 g_string_sprintf(gs, "SMB FID: %u", binding->smb_fid);
435 label = gtk_label_new(gs->str);
436 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
437 gtk_widget_set_sensitive(label, binding->smb_fid);
439 /* Conditionally enabled - only when decoding packets */
440 label = gtk_label_new("with:");
441 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
443 decode_dimmable = g_slist_prepend(decode_dimmable, label);
444 scrolled_window = decode_add_dcerpc_menu(page_hb, "dcerpc" /*table_name*/);
445 gtk_box_pack_start(GTK_BOX(page_hb), scrolled_window, TRUE, TRUE, 0);
446 decode_dimmable = g_slist_prepend(decode_dimmable, scrolled_window);
448 g_string_free(gs, TRUE);