Ethereal-dev: [Ethereal-dev] patch to show interface's name in packet-dcerpc.c (win32 only)
Attached patch looks up in the Windows registry for the name of the
DCE-RPC/DCOM interface, and if found, displays it.
This takes place only if the interface is not parsed already by Ethereal.
As it is a Win32 only capabiity, it is surrounded by #ifdef WIN32.
Diff'ed against packet-dcerpc.c from Ethereal CVS 2004-01-20.
--- packet-dcerpc.c 2004-01-19 22:10:36.000000000 +0200
+++ packet-dcerpc.c.ynv 2004-02-04 14:14:44.000000000 +0200
@@ -418,6 +418,39 @@
+int ResolveWin32UUID(e_uuid_t if_id, char *UUID_NAME, int UUID_NAME_MAX_LEN)
+{
+#ifdef WIN32
+ char REG_UUID_NAME[MAX_PATH];
+ HKEY hKey = NULL;
+ DWORD UUID_MAX_SIZE = MAX_PATH;
+ char REG_UUID_STR[MAX_PATH];
+
+ if(UUID_NAME_MAX_LEN < 2)
+ return 0;
+ REG_UUID_NAME[0] = '\0';
+ snprintf(REG_UUID_STR, MAX_PATH, "SOFTWARE\\Classes\\Interface\\{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}",
+ if_id.Data1, if_id.Data2, if_id.Data3,
+ if_id.Data4[0], if_id.Data4[1],
+ if_id.Data4[2], if_id.Data4[3],
+ if_id.Data4[4], if_id.Data4[5],
+ if_id.Data4[6], if_id.Data4[7]);
+ if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, (LPCSTR)REG_UUID_STR, 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
+ {
+ if (RegQueryValueEx(hKey, NULL, NULL, NULL, (LPBYTE)REG_UUID_NAME, &UUID_MAX_SIZE) == ERROR_SUCCESS && UUID_MAX_SIZE <= MAX_PATH)
+ //col_append_fstr(pinfo->cinfo, COL_INFO, " Win32 Interface: %s ", REG_UUID_NAME);
+ {
+ snprintf(UUID_NAME, UUID_NAME_MAX_LEN, "%s", REG_UUID_NAME);
+ RegCloseKey(hKey);
+ return strlen(REG_UUID_NAME);
+ }
+ RegCloseKey(hKey);
+ }
+#endif
+ return 0; // we didn't find anything anyhow. Please don't use the string!
+
+}
+
static dcerpc_info *
get_next_di(void)
{
@@ -2131,6 +2164,7 @@
char uuid_str[DCERPC_UUID_STR_LEN];
int uuid_str_len;
dcerpc_auth_info auth_info;
+ char UUID_NAME[MAX_PATH];
offset = dissect_dcerpc_uint16 (tvb, offset, pinfo, dcerpc_tree, hdr->drep,
hf_dcerpc_cn_max_xmit, NULL);
@@ -2181,7 +2215,10 @@
if (uuid_str_len >= DCERPC_UUID_STR_LEN)
memset(uuid_str, 0, DCERPC_UUID_STR_LEN);
-
+ if(ResolveWin32UUID(if_id, UUID_NAME, MAX_PATH))
+ iface_item = proto_tree_add_string_format (ctx_tree, hf_dcerpc_cn_bind_if_id, tvb,
+ offset, 16, uuid_str, "Interface [%s] UUID: %s", UUID_NAME, uuid_str);
+ else
iface_item = proto_tree_add_string_format (ctx_tree, hf_dcerpc_cn_bind_if_id, tvb,
offset, 16, uuid_str, "Interface UUID: %s", uuid_str);
iface_tree = proto_item_add_subtree(iface_item, ett_dcerpc_cn_iface);
@@ -2248,7 +2285,16 @@
if ((value = g_hash_table_lookup(dcerpc_uuids, &key)))
col_append_fstr(pinfo->cinfo, COL_INFO, " UUID: %s", value->name);
else
- col_append_fstr(pinfo->cinfo, COL_INFO, " UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x ver %u.%u",
+ if(ResolveWin32UUID(if_id, UUID_NAME, MAX_PATH))
+ col_append_fstr(pinfo->cinfo, COL_INFO, " [%s] UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x ver %u.%u",
+ UUID_NAME, if_id.Data1, if_id.Data2, if_id.Data3,
+ if_id.Data4[0], if_id.Data4[1],
+ if_id.Data4[2], if_id.Data4[3],
+ if_id.Data4[4], if_id.Data4[5],
+ if_id.Data4[6], if_id.Data4[7],
+ if_ver, if_ver_minor);
+ else
+ col_append_fstr(pinfo->cinfo, COL_INFO, " UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x ver %u.%u",
if_id.Data1, if_id.Data2, if_id.Data3,
if_id.Data4[0], if_id.Data4[1],
if_id.Data4[2], if_id.Data4[3],
