"Field Information" context menu item that will bring up a web page reference to a field type of FT_OID

svn path=/trunk/; revision=18125

asn1/cms/packet-cms-template.c

@@ -138,7 +138,7 @@ void proto_register_cms(void) {
   static hf_register_info hf[] = {
     { &hf_cms_ci_contentType,
       { "contentType", "cms.contentInfo.contentType",
-        FT_STRING, BASE_NONE, NULL, 0,
+        FT_OID, BASE_NONE, NULL, 0,
         "ContentType", HFILL }},
 #include "packet-cms-hfarr.c"
   };

epan/dissectors/packet-ber.c

@@ -2331,7 +2331,7 @@ proto_register_ber(void)
 	    "OCTETSTRING", "ber.unknown.OCTETSTRING", FT_BYTES, BASE_HEX,
 	    NULL, 0, "This is an unknown OCTETSTRING", HFILL }},
 	{ &hf_ber_unknown_OID, {
-	    "OID", "ber.unknown.OID", FT_STRING, BASE_NONE,
+	    "OID", "ber.unknown.OID", FT_OID, BASE_NONE,
 	    NULL, 0, "This is an unknown Object Identifier", HFILL }},
 	    	{ &hf_ber_unknown_GraphicString, {
 	    "GRAPHICSTRING", "ber.unknown.GRAPHICSTRING", FT_STRING, BASE_HEX,

epan/dissectors/packet-cms.c

@@ -1599,7 +1599,7 @@ void proto_register_cms(void) {
   static hf_register_info hf[] = {
     { &hf_cms_ci_contentType,
       { "contentType", "cms.contentInfo.contentType",
-        FT_STRING, BASE_NONE, NULL, 0,
+        FT_OID, BASE_NONE, NULL, 0,
         "ContentType", HFILL }},
 
 /*--- Included file: packet-cms-hfarr.c ---*/

epan/libethereal.def

@@ -411,6 +411,7 @@ nt_cmd_vals                     DATA
 num_tap_filters                 DATA
 num_tree_types                  DATA
 offset_from_real_beginning
+oid_get_url
 other_decode_bitfield_value
 plugin_list                     DATA
 postseq_cleanup_all_protocols

epan/oid_resolv.c

@@ -35,6 +35,9 @@
 
 static GHashTable *oid_table = NULL;
 
+/* this should be configurable - but where ? */
+static const gchar *oid_url_template = "http://www.alvestrand.no/objectid/%s.html";
+
 void oid_resolv_init(void) {
   oid_table = g_hash_table_new(g_str_hash, g_str_equal);
 }
@@ -95,3 +98,29 @@ extern void add_oid_name(const guint8 *oid, gint oid_len, const gchar *name) {
 extern void add_oid_str_name(const gchar *oid_str, const gchar *name) {
   g_hash_table_insert(oid_table, (gpointer)g_strdup(oid_str), (gpointer)name);
 }
+
+gboolean get_oid_url(field_info *finfo, gchar **ret_url)
+{
+  const char *oid;
+  
+  if(finfo && (finfo->hfinfo->type == FT_OID) && 
+     (oid_url_template != NULL) && (*oid_url_template != NULL)) {
+    if(ret_url) {
+      /* return the URL */
+      oid = oid_to_str(tvb_get_ptr(finfo->ds_tvb, finfo->start, finfo->length),
+		       finfo->length);
+
+      /* the URL will be freed */
+      *ret_url = g_strdup_printf(oid_url_template, oid);
+      return TRUE;
+    } else {
+      /* return TRUE if we are configured to return URLs */
+
+      if((oid_url_template != NULL) && (*oid_url_template != NULL)) 
+	return TRUE;
+      
+    }
+  }
+
+  return FALSE;
+}

epan/oid_resolv.h

@@ -32,6 +32,8 @@
 #ifndef __OID_RESOLV_H__
 #define __OID_RESOLV_H__
 
+#include <epan/proto.h>
+
 /* init and clenup funcions called from epan.h */
 extern void oid_resolv_init(void);
 extern void oid_resolv_cleanup(void);
@@ -46,5 +48,8 @@ extern const gchar *get_oid_str_name(const gchar *oid_str);
 extern void add_oid_name(const guint8 *oid, gint oid_len, const gchar *name);
 extern void add_oid_str_name(const gchar *oid_str, const gchar *name);
 
+/* get a URL for an OID in the given field */
+/* if ret_url is NULL, just return TRUE if we are configured to provide one */
+extern gboolean get_oid_url(field_info *finfo, gchar **ret_url);
 
 #endif /* __OID_RESOLV_H__ */

gtk/main.c

@@ -89,6 +89,7 @@
 #include "cmdarg_err.h"
 #include "version_info.h"
 #include "merge.h"
+#include <epan/oid_resolv.h>
 
 #ifdef HAVE_LIBPCAP
 #include "capture-pcap-util.h"
@@ -382,6 +383,28 @@ selected_ptree_ref_cb(GtkWidget *widget _U_, gpointer data _U_)
     }
 }
 
+void
+selected_ptree_field_url_cb(GtkWidget *widget _U_, gpointer data _U_)
+{
+  gchar *selected_info_url;
+
+  /* only OIDs for now */
+  if(cfile.finfo_selected->hfinfo->type == FT_OID) {
+    if(get_oid_url(cfile.finfo_selected, &selected_info_url)) {
+      browser_open_url(selected_info_url);
+      g_free(selected_info_url);
+    }
+  }
+}
+
+gboolean selected_ptree_has_field_url()
+{
+  /* only OIDs for now */
+  if(cfile.finfo_selected->hfinfo->type == FT_OID) 
+    return get_oid_url(cfile.finfo_selected, NULL);
+
+  return FALSE;
+}
 
 static gchar *
 get_text_from_packet_list(gpointer data)

gtk/main.h

@@ -105,6 +105,17 @@ extern void selected_ptree_info_cb(GtkWidget *widget, gpointer data);
  */
 extern void selected_ptree_ref_cb(GtkWidget *widget, gpointer data);
 
+/** User requested "Field Information" by ptree context menu.
+ *
+ * @param widget parent widget (unused)
+ * @param data unused
+ */
+extern void selected_ptree_field_url_cb(GtkWidget *widget, gpointer data);
+
+/** Determine if "Field Information" should be enabled in ptree context menu.
+ *
+ */
+extern gboolean selected_ptree_has_field_url();
 
 /** "Apply as Filter" / "Prepare a Filter" action type. */
 typedef enum {

gtk/menu.c

@@ -519,6 +519,8 @@ static GtkItemFactoryEntry tree_view_menu_items[] =
                        0, ETHEREAL_STOCK_WIKI),
     ITEM_FACTORY_STOCK_ENTRY("/Filter Field Reference", NULL, selected_ptree_ref_cb,
                        0, ETHEREAL_STOCK_INTERNET),
+    ITEM_FACTORY_STOCK_ENTRY("/Field Information", NULL, selected_ptree_field_url_cb,
+                       0, ETHEREAL_STOCK_INTERNET),
     ITEM_FACTORY_ENTRY("/Protocol Preferences...", NULL, properties_cb,
                        0, NULL, NULL),
     ITEM_FACTORY_ENTRY("/<separator>", NULL, NULL, 0, "<Separator>", NULL),
@@ -2135,6 +2137,8 @@ set_menus_for_selected_tree_row(capture_file *cf)
 	  TRUE);
 	set_menu_sensitivity(tree_view_menu_factory, "/Filter Field Reference",
 	  TRUE);
+	set_menu_sensitivity(tree_view_menu_factory, "/Field Information",
+			     selected_ptree_has_field_url());
   } else {
 	set_menu_sensitivity(main_menu_factory,
 	    "/Go/Go to Corresponding Packet", FALSE);
@@ -2152,6 +2156,8 @@ set_menus_for_selected_tree_row(capture_file *cf)
 	  FALSE);
 	set_menu_sensitivity(tree_view_menu_factory, "/Filter Field Reference",
 	  FALSE);
+	set_menu_sensitivity(tree_view_menu_factory, "/Field Information",
+	  FALSE);
   }
 
   walk_menu_tree_for_selected_tree_row(tap_menu_tree_root, cf->finfo_selected);