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 <epan/packet.h>
32 #include <epan/epan_dissect.h>
33 #include <epan/dissectors/packet-dcerpc.h>
35 #include "../globals.h"
36 #include "../simple_dialog.h"
38 #include "gtk/decode_as_dlg.h"
39 #include "gtk/dlg_utils.h"
40 #include "gtk/gui_utils.h"
41 #include "gtk/decode_as_dcerpc.h"
44 /**************************************************/
45 /* Typedefs & Enums */
46 /**************************************************/
48 /* list of dcerpc "Decode As" bindings */
49 GSList *decode_dcerpc_bindings = NULL;
51 /**************************************************/
52 /* Global Functions */
53 /**************************************************/
55 /* inject one of our bindings into the dcerpc binding table */
57 decode_dcerpc_inject_binding(gpointer data, gpointer user_data _U_)
59 dcerpc_add_conv_to_bind_table((decode_dcerpc_bind_values_t *) data);
63 /* inject all of our bindings into the dcerpc binding table */
65 decode_dcerpc_inject_bindings(gpointer data _U_) {
66 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_inject_binding, NULL /* user_data */);
72 decode_dcerpc_init(void) {
73 GHook* hook_init_proto;
76 /* add a hook function to the dcerpc init_protocols hook */
77 hook_init_proto = g_hook_alloc(&dcerpc_hooks_init_protos);
78 hook_init_proto->func = decode_dcerpc_inject_bindings;
79 g_hook_prepend(&dcerpc_hooks_init_protos, hook_init_proto);
83 /* clone a binding (uses g_malloc) */
84 static decode_dcerpc_bind_values_t *
85 decode_dcerpc_binding_clone(decode_dcerpc_bind_values_t *binding_in)
87 decode_dcerpc_bind_values_t *stored_binding;
89 stored_binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
90 *stored_binding = *binding_in;
91 COPY_ADDRESS(&stored_binding->addr_a, &binding_in->addr_a);
92 COPY_ADDRESS(&stored_binding->addr_b, &binding_in->addr_b);
93 stored_binding->ifname = g_string_new(binding_in->ifname->str);
95 return stored_binding;
101 decode_dcerpc_binding_free(void *binding_in)
103 decode_dcerpc_bind_values_t *binding = binding_in;
105 g_free((void *) binding->addr_a.data);
106 g_free((void *) binding->addr_b.data);
108 g_string_free(binding->ifname, TRUE);
113 /* compare two bindings (except the interface related things, e.g. uuid) */
115 decode_dcerpc_binding_cmp(gconstpointer a, gconstpointer b)
117 const decode_dcerpc_bind_values_t *binding_a = a;
118 const decode_dcerpc_bind_values_t *binding_b = b;
121 /* don't compare uuid and ver! */
123 ADDRESSES_EQUAL(&binding_a->addr_a, &binding_b->addr_a) &&
124 ADDRESSES_EQUAL(&binding_a->addr_b, &binding_b->addr_b) &&
125 binding_a->ptype == binding_b->ptype &&
126 binding_a->port_a == binding_b->port_a &&
127 binding_a->port_b == binding_b->port_b &&
128 binding_a->ctx_id == binding_b->ctx_id &&
129 binding_a->smb_fid == binding_b->smb_fid)
140 /**************************************************/
141 /* Show Changed Bindings */
142 /**************************************************/
145 /* add a single binding to the Show list */
147 decode_dcerpc_add_show_list_single(gpointer data, gpointer user_data)
152 decode_dcerpc_bind_values_t *binding = data;
154 g_snprintf(string1, sizeof(string1), "ctx_id: %u", binding->ctx_id);
156 decode_add_to_show_list (
161 binding->ifname->str);
165 /* add all bindings to the Show list */
167 decode_dcerpc_add_show_list(gpointer user_data)
169 g_slist_foreach(decode_dcerpc_bindings, decode_dcerpc_add_show_list_single, user_data);
173 /**************************************************/
174 /* Modify the binding routines */
175 /**************************************************/
178 /* removes all bindings */
180 decode_dcerpc_reset_all(void)
182 decode_dcerpc_bind_values_t *binding;
184 while(decode_dcerpc_bindings) {
185 binding = decode_dcerpc_bindings->data;
187 decode_dcerpc_binding_free(binding);
188 decode_dcerpc_bindings = g_slist_remove(
189 decode_dcerpc_bindings,
190 decode_dcerpc_bindings->data);
195 /* remove a binding (looking the same way as the given one) */
197 decode_dcerpc_binding_reset(
198 const gchar *table_name _U_,
199 decode_dcerpc_bind_values_t *binding)
202 decode_dcerpc_bind_values_t *old_binding;
205 /* find the old binding (if it exists) */
206 le = g_slist_find_custom(decode_dcerpc_bindings,
208 decode_dcerpc_binding_cmp);
212 old_binding = le->data;
214 decode_dcerpc_bindings = g_slist_remove(decode_dcerpc_bindings, le->data);
216 g_free((void *) old_binding->addr_a.data);
217 g_free((void *) old_binding->addr_b.data);
218 g_string_free(old_binding->ifname, TRUE);
223 /* a binding has changed (remove a previously existing one) */
225 decode_dcerpc_binding_change(
226 const gchar *table_name,
227 decode_dcerpc_bind_values_t *binding)
230 decode_dcerpc_bind_values_t *stored_binding;
232 /* remove a probably existing old binding */
233 decode_dcerpc_binding_reset(table_name, binding);
235 /* clone the new binding and append it to the list */
236 stored_binding = decode_dcerpc_binding_clone(binding);
237 decode_dcerpc_bindings = g_slist_append (decode_dcerpc_bindings, stored_binding);
241 /* a binding has changed (add/replace/remove it) */
243 decode_change_one_dcerpc_binding(const gchar *table_name, decode_dcerpc_bind_values_t *binding, GtkWidget *list)
245 dcerpc_uuid_key *key;
247 GtkTreeSelection *selection;
251 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(list));
252 if (gtk_tree_selection_get_selected(selection, &model, &iter) == FALSE)
257 gtk_tree_model_get(model, &iter, E_LIST_S_PROTO_NAME, &abbrev,
258 E_LIST_S_TABLE+1, &key, -1);
261 if (key == NULL || (abbrev != NULL && strcmp(abbrev, "(default)") == 0) ) {
262 decode_dcerpc_binding_reset(table_name, binding);
264 binding->ifname = g_string_new(abbrev);
265 binding->uuid = key->uuid;
266 binding->ver = key->ver;
267 decode_dcerpc_binding_change(table_name, binding);
274 /**************************************************/
275 /* Action routines for the "Decode As..." dialog */
276 /* - called when the OK button pressed */
277 /**************************************************/
280 * This routine is called when the user clicks the "OK" button in the
281 * "Decode As..." dialog window and the DCE-RPC page is foremost.
282 * This routine takes care of making any changes requested to the DCE-RPC
285 * @param notebook_pg A pointer to the "DCE-RPC" notebook page.
288 decode_dcerpc(GtkWidget *notebook_pg)
291 const gchar *table_name;
292 decode_dcerpc_bind_values_t *binding;
295 list = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_LIST);
296 if (requested_action == E_DECODE_NO)
297 gtk_tree_selection_unselect_all(gtk_tree_view_get_selection(GTK_TREE_VIEW(list)));
299 binding = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_BINDING);
301 /*table_name = g_object_get_data(G_OBJECT(notebook_pg), E_PAGE_TABLE);*/
302 table_name = "DCE-RPC";
303 decode_change_one_dcerpc_binding(table_name, binding, list);
307 /**************************************************/
309 /**************************************************/
312 /* add an interface to the list */
314 decode_dcerpc_add_to_list(gpointer key, gpointer value, gpointer user_data)
316 /*dcerpc_uuid_key *k = key;*/
317 dcerpc_uuid_value *v = value;
319 if(strcmp(v->name, "(none)"))
320 decode_add_to_list("DCE-RPC", v->name, key, user_data);
324 /* add all interfaces to the list */
326 decode_add_dcerpc_menu (GtkWidget *page, const gchar *table_name _U_)
328 GtkWidget *scrolled_window;
331 decode_list_menu_start(page, &list, &scrolled_window);
332 g_hash_table_foreach(dcerpc_uuids, decode_dcerpc_add_to_list, list);
333 decode_list_menu_finish(list);
334 return(scrolled_window);
338 /* add a DCE-RPC page to the notebook */
340 decode_dcerpc_add_page (packet_info *pinfo)
342 GtkWidget *page_hb, *info_vb, *label, *scrolled_window;
343 GString *gs = g_string_new("");
344 GString *gs2 = g_string_new("");
345 decode_dcerpc_bind_values_t *binding;
349 binding = g_malloc(sizeof(decode_dcerpc_bind_values_t));
350 COPY_ADDRESS(&binding->addr_a, &pinfo->src);
351 COPY_ADDRESS(&binding->addr_b, &pinfo->dst);
352 binding->ptype = pinfo->ptype;
353 binding->port_a = pinfo->srcport;
354 binding->port_b = pinfo->destport;
355 binding->ctx_id = pinfo->dcectxid;
356 binding->smb_fid = dcerpc_get_transport_salt(pinfo);
357 binding->ifname = NULL;
358 /*binding->uuid = NULL;*/
361 /* create page content */
362 page_hb = gtk_hbox_new(FALSE, 5);
363 g_object_set_data(G_OBJECT(page_hb), E_PAGE_ACTION, decode_dcerpc);
364 g_object_set_data(G_OBJECT(page_hb), E_PAGE_TABLE, "DCE-RPC");
365 g_object_set_data(G_OBJECT(page_hb), E_PAGE_TITLE, "DCE-RPC");
366 g_object_set_data(G_OBJECT(page_hb), E_PAGE_BINDING, binding);
368 info_vb = gtk_vbox_new(FALSE, 5);
369 gtk_box_pack_start(GTK_BOX(page_hb), info_vb, TRUE, TRUE, 0);
372 label = gtk_label_new("Replace binding between:");
373 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
375 switch(binding->ptype) {
377 g_string_printf(gs2, "TCP port");
380 g_string_printf(gs2, "UDP port");
383 g_string_printf(gs2, "Unknown port type");
386 /* XXX - how to print the address binding->addr_a? */
387 g_string_printf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_a);
388 label = gtk_label_new(gs->str);
389 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
391 label = gtk_label_new("&");
392 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
394 /* XXX - how to print the address binding->addr_b? */
395 g_string_printf(gs, "Address: ToBeDone %s: %u", gs2->str, binding->port_b);
396 label = gtk_label_new(gs->str);
397 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
399 label = gtk_label_new("&");
400 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
402 g_string_printf(gs, "Context ID: %u", binding->ctx_id);
403 label = gtk_label_new(gs->str);
404 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
406 label = gtk_label_new("&");
407 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
408 gtk_widget_set_sensitive(label, binding->smb_fid);
410 g_string_printf(gs, "SMB FID: %u", binding->smb_fid);
411 label = gtk_label_new(gs->str);
412 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
413 gtk_widget_set_sensitive(label, binding->smb_fid);
415 /* Conditionally enabled - only when decoding packets */
416 label = gtk_label_new("with:");
417 gtk_box_pack_start(GTK_BOX(info_vb), label, TRUE, TRUE, 0);
419 decode_dimmable = g_slist_prepend(decode_dimmable, label);
420 scrolled_window = decode_add_dcerpc_menu(page_hb, "dcerpc" /*table_name*/);
421 gtk_box_pack_start(GTK_BOX(page_hb), scrolled_window, TRUE, TRUE, 0);
422 decode_dimmable = g_slist_prepend(decode_dimmable, scrolled_window);
424 g_string_free(gs, TRUE);