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Clean up the previous checkin a bit - there's no need to have 

"dissect_rpc_common()" check, every time it's about to return FALSE,
whether it's being used as a heuristic dissector and, if not, call
"dissect_rpc_continuation()" - we can just have the non-heuristic
dissector call it and, if it returned FALSE, call
"dissect_rpc_continuation()".

svn path=/trunk/; revision=3922
This commit is contained in:
Guy Harris 2001-09-12 08:46:39 +00:00
parent 94e029fef6
commit a37ddb63b1
1 changed files with 6 additions and 22 deletions
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28
packet-rpc.c
View File

@ -2,7 +2,7 @@
* Routines for rpc dissection
* Copyright 1999, Uwe Girlich <Uwe.Girlich@philosys.de>
*
* $Id: packet-rpc.c,v 1.69 2001/09/12 08:13:33 guy Exp $
* $Id: packet-rpc.c,v 1.70 2001/09/12 08:46:39 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
@ -1384,8 +1384,7 @@ dissect_rpc_continuation(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
}
static gboolean
dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
gboolean is_heur)
dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int offset = 0;
guint32 msg_type;
@ -1442,11 +1441,8 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
/* the first 4 bytes are special in "record marking mode" */
if (use_rm) {
if (!tvb_bytes_exist(tvb, offset, 4)) {
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
if (!tvb_bytes_exist(tvb, offset, 4))
return FALSE;
}
rpc_rm = tvb_get_ntohl(tvb, offset);
offset += 4;
}
@ -1456,8 +1452,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
*/
if (!tvb_bytes_exist(tvb, offset, 8)) {
/* Captured data in packet isn't enough to let us tell. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
@ -1471,8 +1465,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
if (!tvb_bytes_exist(tvb, offset, 16)) {
/* Captured data in packet isn't enough to let us
tell. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
@ -1486,8 +1478,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
((rpc_prog = g_hash_table_lookup(rpc_progs, &rpc_prog_key))
== NULL)) {
/* They're not, so it's probably not an RPC call. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
break;
@ -1528,8 +1518,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
if (conversation == NULL) {
/* We haven't seen an RPC call for that conversation,
so we can't check for a reply to that call. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
@ -1540,8 +1528,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
if (rpc_call == NULL) {
/* The XID doesn't match a call from that
conversation, so it's probably not an RPC reply. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
break;
@ -1550,8 +1536,6 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
/* The putative message type field contains neither
RPC_CALL nor RPC_REPLY, so it's not an RPC call or
reply. */
if (!is_heur)
dissect_rpc_continuation(tvb, pinfo, tree);
return FALSE;
}
@ -2084,13 +2068,14 @@ dissect_rpc_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
static gboolean
dissect_rpc_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
return dissect_rpc_common(tvb, pinfo, tree, TRUE);
return dissect_rpc_common(tvb, pinfo, tree);
}
static void
dissect_rpc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
dissect_rpc_common(tvb, pinfo, tree, FALSE);
if (!dissect_rpc_common(tvb, pinfo, tree))
dissect_rpc_continuation(tvb, pinfo, tree);
}
/* Discard any state we've saved. */
@ -2118,7 +2103,6 @@ rpc_init_protocol(void)
G_ALLOC_ONLY);
}
/* will be called once from register.c at startup time */
void
proto_register_rpc(void)